configure

   1 #!/bin/sh
   2 #
   3 # qemu configure script (c) 2003 Fabrice Bellard
   4 #
   5
   6 # Unset some variables known to interfere with behavior of common tools,
   7 # just as autoconf does.
   8 CLICOLOR_FORCE= GREP_OPTIONS=
   9 unset CLICOLOR_FORCE GREP_OPTIONS
  10
  11 # Don't allow CCACHE, if present, to use cached results of compile tests!
  12 export CCACHE_RECACHE=yes
  13
  14 # Temporary directory used for files created while
  15 # configure runs. Since it is in the build directory
  16 # we can safely blow away any previous version of it
  17 # (and we need not jump through hoops to try to delete
  18 # it when configure exits.)
  19 TMPDIR1="config-temp"
  20 rm -rf "${TMPDIR1}"
  21 mkdir -p "${TMPDIR1}"
  22 if [ $? -ne 0 ]; then
  23     echo "ERROR: failed to create temporary directory"
  24     exit 1
  25 fi
  26
  27 TMPB="qemu-conf"
  28 TMPC="${TMPDIR1}/${TMPB}.c"
  29 TMPO="${TMPDIR1}/${TMPB}.o"
  30 TMPCXX="${TMPDIR1}/${TMPB}.cxx"
  31 TMPE="${TMPDIR1}/${TMPB}.exe"
  32 TMPMO="${TMPDIR1}/${TMPB}.mo"
  33 TMPTXT="${TMPDIR1}/${TMPB}.txt"
  34
  35 rm -f config.log
  36
  37 # Print a helpful header at the top of config.log
  38 echo "# QEMU configure log $(date)" >> config.log
  39 printf "# Configured with:" >> config.log
  40 printf " '%s'" "$0" "$@" >> config.log
  41 echo >> config.log
  42 echo "#" >> config.log
  43
  44 print_error() {
  45     (echo
  46     echo "ERROR: $1"
  47     while test -n "$2"; do
  48         echo "       $2"
  49         shift
  50     done
  51     echo) >&2
  52 }
  53
  54 error_exit() {
  55     print_error "$@"
  56     exit 1
  57 }
  58
  59 do_compiler() {
  60     # Run the compiler, capturing its output to the log. First argument
  61     # is compiler binary to execute.
  62     local compiler="$1"
  63     shift
  64     if test -n "$BASH_VERSION"; then eval '
  65         echo >>config.log "
  66 funcs: ${FUNCNAME[*]}
  67 lines: ${BASH_LINENO[*]}"
  68     '; fi
  69     echo $compiler "$@" >> config.log
  70     $compiler "$@" >> config.log 2>&1 || return $?
  71     # Test passed. If this is an --enable-werror build, rerun
  72     # the test with -Werror and bail out if it fails. This
  73     # makes warning-generating-errors in configure test code
  74     # obvious to developers.
  75     if test "$werror" != "yes"; then
  76         return 0
  77     fi
  78     # Don't bother rerunning the compile if we were already using -Werror
  79     case "$*" in
  80         *-Werror*)
  81            return 0
  82         ;;
  83     esac
  84     echo $compiler -Werror "$@" >> config.log
  85     $compiler -Werror "$@" >> config.log 2>&1 && return $?
  86     error_exit "configure test passed without -Werror but failed with -Werror." \
  87         "This is probably a bug in the configure script. The failing command" \
  88         "will be at the bottom of config.log." \
  89         "You can run configure with --disable-werror to bypass this check."
  90 }
  91
  92 do_cc() {
  93     do_compiler "$cc" "$@"
  94 }
  95
  96 do_cxx() {
  97     do_compiler "$cxx" "$@"
  98 }
  99
 100 update_cxxflags() {
 101     # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
 102     # options which some versions of GCC's C++ compiler complain about
 103     # because they only make sense for C programs.
 104     QEMU_CXXFLAGS="$QEMU_CXXFLAGS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
 105
 106     for arg in $QEMU_CFLAGS; do
 107         case $arg in
 108             -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
 109             -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
 110                 ;;
 111             -std=gnu99)
 112                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }"-std=gnu++98"
 113                 ;;
 114             *)
 115                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
 116                 ;;
 117         esac
 118     done
 119 }
 120
 121 compile_object() {
 122   local_cflags="$1"
 123   do_cc $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 124 }
 125
 126 compile_prog() {
 127   local_cflags="$1"
 128   local_ldflags="$2"
 129   do_cc $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC $QEMU_LDFLAGS $local_ldflags
 130 }
 131
 132 # symbolically link $1 to $2.  Portable version of "ln -sf".
 133 symlink() {
 134   rm -rf "$2"
 135   mkdir -p "$(dirname "$2")"
 136   ln -s "$1" "$2"
 137 }
 138
 139 # check whether a command is available to this shell (may be either an
 140 # executable or a builtin)
 141 has() {
 142     type "$1" >/dev/null 2>&1
 143 }
 144
 145 # search for an executable in PATH
 146 path_of() {
 147     local_command="$1"
 148     local_ifs="$IFS"
 149     local_dir=""
 150
 151     # pathname has a dir component?
 152     if [ "${local_command#*/}" != "$local_command" ]; then
 153         if [ -x "$local_command" ] && [ ! -d "$local_command" ]; then
 154             echo "$local_command"
 155             return 0
 156         fi
 157     fi
 158     if [ -z "$local_command" ]; then
 159         return 1
 160     fi
 161
 162     IFS=:
 163     for local_dir in $PATH; do
 164         if [ -x "$local_dir/$local_command" ] && [ ! -d "$local_dir/$local_command" ]; then
 165             echo "$local_dir/$local_command"
 166             IFS="${local_ifs:-$(printf ' \t\n')}"
 167             return 0
 168         fi
 169     done
 170     # not found
 171     IFS="${local_ifs:-$(printf ' \t\n')}"
 172     return 1
 173 }
 174
 175 have_backend () {
 176     echo "$trace_backends" | grep "$1" >/dev/null
 177 }
 178
 179 glob() {
 180     eval test -z '"${1#'"$2"'}"'
 181 }
 182
 183 supported_hax_target() {
 184     test "$hax" = "yes" || return 1
 185     glob "$1" "*-softmmu" || return 1
 186     case "${1%-softmmu}" in
 187         i386|x86_64)
 188             return 0
 189         ;;
 190     esac
 191     return 1
 192 }
 193
 194 supported_kvm_target() {
 195     test "$kvm" = "yes" || return 1
 196     glob "$1" "*-softmmu" || return 1
 197     case "${1%-softmmu}:$cpu" in
 198         arm:arm | aarch64:aarch64 | \
 199         i386:i386 | i386:x86_64 | i386:x32 | \
 200         x86_64:i386 | x86_64:x86_64 | x86_64:x32 | \
 201         mips:mips | mipsel:mips | \
 202         ppc:ppc | ppc64:ppc | ppc:ppc64 | ppc64:ppc64 | ppc64:ppc64le | \
 203         s390x:s390x)
 204             return 0
 205         ;;
 206     esac
 207     return 1
 208 }
 209
 210 supported_xen_target() {
 211     test "$xen" = "yes" || return 1
 212     glob "$1" "*-softmmu" || return 1
 213     # Only i386 and x86_64 provide the xenpv machine.
 214     case "${1%-softmmu}" in
 215         i386|x86_64)
 216             return 0
 217         ;;
 218     esac
 219     return 1
 220 }
 221
 222 supported_hvf_target() {
 223     test "$hvf" = "yes" || return 1
 224     glob "$1" "*-softmmu" || return 1
 225     case "${1%-softmmu}" in
 226         x86_64)
 227             return 0
 228         ;;
 229     esac
 230     return 1
 231 }
 232
 233 supported_whpx_target() {
 234     test "$whpx" = "yes" || return 1
 235     glob "$1" "*-softmmu" || return 1
 236     case "${1%-softmmu}" in
 237         i386|x86_64)
 238             return 0
 239         ;;
 240     esac
 241     return 1
 242 }
 243
 244 supported_target() {
 245     case "$1" in
 246         *-softmmu)
 247             ;;
 248         *-linux-user)
 249             if test "$linux" != "yes"; then
 250                 print_error "Target '$target' is only available on a Linux host"
 251                 return 1
 252             fi
 253             ;;
 254         *-bsd-user)
 255             if test "$bsd" != "yes"; then
 256                 print_error "Target '$target' is only available on a BSD host"
 257                 return 1
 258             fi
 259             ;;
 260         *)
 261             print_error "Invalid target name '$target'"
 262             return 1
 263             ;;
 264     esac
 265     test "$tcg" = "yes" && return 0
 266     supported_kvm_target "$1" && return 0
 267     supported_xen_target "$1" && return 0
 268     supported_hax_target "$1" && return 0
 269     supported_hvf_target "$1" && return 0
 270     supported_whpx_target "$1" && return 0
 271     print_error "TCG disabled, but hardware accelerator not available for '$target'"
 272     return 1
 273 }
 274
 275
 276 ld_has() {
 277     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 278 }
 279
 280 # make source path absolute
 281 source_path=$(cd "$(dirname -- "$0")"; pwd)
 282
 283 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 284 then
 285   error_exit "main directory cannot contain spaces nor colons"
 286 fi
 287
 288 # default parameters
 289 cpu=""
 290 iasl="iasl"
 291 interp_prefix="/usr/gnemul/qemu-%M"
 292 static="no"
 293 cross_prefix=""
 294 audio_drv_list=""
 295 block_drv_rw_whitelist=""
 296 block_drv_ro_whitelist=""
 297 host_cc="cc"
 298 libs_cpu=""
 299 libs_softmmu=""
 300 libs_tools=""
 301 audio_win_int=""
 302 libs_qga=""
 303 debug_info="yes"
 304 stack_protector=""
 305 use_containers="yes"
 306
 307 if test -e "$source_path/.git"
 308 then
 309     git_update=yes
 310     git_submodules="ui/keycodemapdb"
 311     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
 312     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
 313 else
 314     git_update=no
 315     git_submodules=""
 316
 317     if ! test -f "$source_path/ui/keycodemapdb/README"
 318     then
 319         echo
 320         echo "ERROR: missing file $source_path/ui/keycodemapdb/README"
 321         echo
 322         echo "This is not a GIT checkout but module content appears to"
 323         echo "be missing. Do not use 'git archive' or GitHub download links"
 324         echo "to acquire QEMU source archives. Non-GIT builds are only"
 325         echo "supported with source archives linked from:"
 326         echo
 327         echo "  https://www.qemu.org/download/#source"
 328         echo
 329         echo "Developers working with GIT can use scripts/archive-source.sh"
 330         echo "if they need to create valid source archives."
 331         echo
 332         exit 1
 333     fi
 334 fi
 335 git="git"
 336
 337 # Don't accept a target_list environment variable.
 338 unset target_list
 339 unset target_list_exclude
 340
 341 # Default value for a variable defining feature "foo".
 342 #  * foo="no"  feature will only be used if --enable-foo arg is given
 343 #  * foo=""    feature will be searched for, and if found, will be used
 344 #              unless --disable-foo is given
 345 #  * foo="yes" this value will only be set by --enable-foo flag.
 346 #              feature will searched for,
 347 #              if not found, configure exits with error
 348 #
 349 # Always add --enable-foo and --disable-foo command line args.
 350 # Distributions want to ensure that several features are compiled in, and it
 351 # is impossible without a --enable-foo that exits if a feature is not found.
 352
 353 brlapi=""
 354 curl=""
 355 curses=""
 356 docs=""
 357 fdt=""
 358 netmap="no"
 359 sdl=""
 360 sdl_image=""
 361 virtfs=""
 362 mpath=""
 363 vnc="yes"
 364 sparse="no"
 365 vde=""
 366 vnc_sasl=""
 367 vnc_jpeg=""
 368 vnc_png=""
 369 xkbcommon=""
 370 xen=""
 371 xen_ctrl_version=""
 372 xen_pci_passthrough=""
 373 linux_aio=""
 374 linux_io_uring=""
 375 cap_ng=""
 376 attr=""
 377 libattr=""
 378 xfs=""
 379 tcg="yes"
 380 membarrier=""
 381 vhost_net=""
 382 vhost_crypto=""
 383 vhost_scsi=""
 384 vhost_vsock=""
 385 vhost_user=""
 386 vhost_user_fs=""
 387 kvm="no"
 388 hax="no"
 389 hvf="no"
 390 whpx="no"
 391 rdma=""
 392 pvrdma=""
 393 gprof="no"
 394 debug_tcg="no"
 395 debug="no"
 396 sanitizers="no"
 397 fortify_source=""
 398 strip_opt="yes"
 399 tcg_interpreter="no"
 400 bigendian="no"
 401 mingw32="no"
 402 gcov="no"
 403 gcov_tool="gcov"
 404 EXESUF=""
 405 DSOSUF=".so"
 406 LDFLAGS_SHARED="-shared"
 407 modules="no"
 408 module_upgrades="no"
 409 prefix="/usr/local"
 410 mandir="\${prefix}/share/man"
 411 datadir="\${prefix}/share"
 412 firmwarepath="\${prefix}/share/qemu-firmware"
 413 qemu_docdir="\${prefix}/share/doc/qemu"
 414 bindir="\${prefix}/bin"
 415 libdir="\${prefix}/lib"
 416 libexecdir="\${prefix}/libexec"
 417 includedir="\${prefix}/include"
 418 sysconfdir="\${prefix}/etc"
 419 local_statedir="\${prefix}/var"
 420 confsuffix="/qemu"
 421 slirp=""
 422 oss_lib=""
 423 bsd="no"
 424 linux="no"
 425 solaris="no"
 426 profiler="no"
 427 cocoa="no"
 428 softmmu="yes"
 429 linux_user="no"
 430 bsd_user="no"
 431 blobs="yes"
 432 edk2_blobs="no"
 433 pkgversion=""
 434 pie=""
 435 qom_cast_debug="yes"
 436 trace_backends="log"
 437 trace_file="trace"
 438 spice=""
 439 rbd=""
 440 smartcard=""
 441 libusb=""
 442 usb_redir=""
 443 opengl=""
 444 opengl_dmabuf="no"
 445 cpuid_h="no"
 446 avx2_opt=""
 447 zlib="yes"
 448 capstone=""
 449 lzo=""
 450 snappy=""
 451 bzip2=""
 452 lzfse=""
 453 zstd=""
 454 guest_agent=""
 455 guest_agent_with_vss="no"
 456 guest_agent_ntddscsi="no"
 457 guest_agent_msi=""
 458 vss_win32_sdk=""
 459 win_sdk="no"
 460 want_tools=""
 461 libiscsi=""
 462 libnfs=""
 463 coroutine=""
 464 coroutine_pool=""
 465 debug_stack_usage="no"
 466 crypto_afalg="no"
 467 seccomp=""
 468 glusterfs=""
 469 glusterfs_xlator_opt="no"
 470 glusterfs_discard="no"
 471 glusterfs_fallocate="no"
 472 glusterfs_zerofill="no"
 473 glusterfs_ftruncate_has_stat="no"
 474 glusterfs_iocb_has_stat="no"
 475 gtk=""
 476 gtk_gl="no"
 477 tls_priority="NORMAL"
 478 gnutls=""
 479 nettle=""
 480 nettle_xts="no"
 481 gcrypt=""
 482 gcrypt_hmac="no"
 483 gcrypt_xts="no"
 484 qemu_private_xts="yes"
 485 auth_pam=""
 486 vte=""
 487 virglrenderer=""
 488 tpm=""
 489 libssh=""
 490 live_block_migration="yes"
 491 numa=""
 492 tcmalloc="no"
 493 jemalloc="no"
 494 replication="yes"
 495 vxhs=""
 496 bochs="yes"
 497 cloop="yes"
 498 dmg="yes"
 499 qcow1="yes"
 500 vdi="yes"
 501 vvfat="yes"
 502 qed="yes"
 503 parallels="yes"
 504 sheepdog="yes"
 505 libxml2=""
 506 debug_mutex="no"
 507 libpmem=""
 508 default_devices="yes"
 509 plugins="no"
 510 fuzzing="no"
 511
 512 supported_cpu="no"
 513 supported_os="no"
 514 bogus_os="no"
 515 malloc_trim=""
 516
 517 # parse CC options first
 518 for opt do
 519   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 520   case "$opt" in
 521   --cross-prefix=*) cross_prefix="$optarg"
 522   ;;
 523   --cc=*) CC="$optarg"
 524   ;;
 525   --cxx=*) CXX="$optarg"
 526   ;;
 527   --cpu=*) cpu="$optarg"
 528   ;;
 529   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 530                     QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 531   ;;
 532   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 533   ;;
 534   --extra-ldflags=*) QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 535                      EXTRA_LDFLAGS="$optarg"
 536   ;;
 537   --enable-debug-info) debug_info="yes"
 538   ;;
 539   --disable-debug-info) debug_info="no"
 540   ;;
 541   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 542   ;;
 543   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 544                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 545                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 546   ;;
 547   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 548                 cc_archs="$cc_archs $cc_arch"
 549                 eval "cross_cc_${cc_arch}=\$optarg"
 550                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 551   ;;
 552   esac
 553 done
 554 # OS specific
 555 # Using uname is really, really broken.  Once we have the right set of checks
 556 # we can eliminate its usage altogether.
 557
 558 # Preferred compiler:
 559 #  ${CC} (if set)
 560 #  ${cross_prefix}gcc (if cross-prefix specified)
 561 #  system compiler
 562 if test -z "${CC}${cross_prefix}"; then
 563   cc="$host_cc"
 564 else
 565   cc="${CC-${cross_prefix}gcc}"
 566 fi
 567
 568 if test -z "${CXX}${cross_prefix}"; then
 569   cxx="c++"
 570 else
 571   cxx="${CXX-${cross_prefix}g++}"
 572 fi
 573
 574 ar="${AR-${cross_prefix}ar}"
 575 as="${AS-${cross_prefix}as}"
 576 ccas="${CCAS-$cc}"
 577 cpp="${CPP-$cc -E}"
 578 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 579 ld="${LD-${cross_prefix}ld}"
 580 ranlib="${RANLIB-${cross_prefix}ranlib}"
 581 nm="${NM-${cross_prefix}nm}"
 582 strip="${STRIP-${cross_prefix}strip}"
 583 windres="${WINDRES-${cross_prefix}windres}"
 584 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 585 query_pkg_config() {
 586     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 587 }
 588 pkg_config=query_pkg_config
 589 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 590
 591 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 592 ARFLAGS="${ARFLAGS-rv}"
 593
 594 # default flags for all hosts
 595 # We use -fwrapv to tell the compiler that we require a C dialect where
 596 # left shift of signed integers is well defined and has the expected
 597 # 2s-complement style results. (Both clang and gcc agree that it
 598 # provides these semantics.)
 599 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv -std=gnu99 $QEMU_CFLAGS"
 600 QEMU_CFLAGS="-Wall -Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 601 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 602 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 603 QEMU_INCLUDES="-iquote . -iquote \$(SRC_PATH) -iquote \$(SRC_PATH)/accel/tcg -iquote \$(SRC_PATH)/include"
 604 QEMU_INCLUDES="$QEMU_INCLUDES -iquote \$(SRC_PATH)/disas/libvixl"
 605 if test "$debug_info" = "yes"; then
 606     CFLAGS="-g $CFLAGS"
 607 fi
 608
 609 # running configure in the source tree?
 610 # we know that's the case if configure is there.
 611 if test -f "./configure"; then
 612     pwd_is_source_path="y"
 613 else
 614     pwd_is_source_path="n"
 615 fi
 616
 617 check_define() {
 618 cat > $TMPC <<EOF
 619 #if !defined($1)
 620 #error $1 not defined
 621 #endif
 622 int main(void) { return 0; }
 623 EOF
 624   compile_object
 625 }
 626
 627 check_include() {
 628 cat > $TMPC <<EOF
 629 #include <$1>
 630 int main(void) { return 0; }
 631 EOF
 632   compile_object
 633 }
 634
 635 write_c_skeleton() {
 636     cat > $TMPC <<EOF
 637 int main(void) { return 0; }
 638 EOF
 639 }
 640
 641 write_c_fuzzer_skeleton() {
 642     cat > $TMPC <<EOF
 643 #include <stdint.h>
 644 #include <sys/types.h>
 645 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 646 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 647 EOF
 648 }
 649
 650 if check_define __linux__ ; then
 651   targetos="Linux"
 652 elif check_define _WIN32 ; then
 653   targetos='MINGW32'
 654 elif check_define __OpenBSD__ ; then
 655   targetos='OpenBSD'
 656 elif check_define __sun__ ; then
 657   targetos='SunOS'
 658 elif check_define __HAIKU__ ; then
 659   targetos='Haiku'
 660 elif check_define __FreeBSD__ ; then
 661   targetos='FreeBSD'
 662 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 663   targetos='GNU/kFreeBSD'
 664 elif check_define __DragonFly__ ; then
 665   targetos='DragonFly'
 666 elif check_define __NetBSD__; then
 667   targetos='NetBSD'
 668 elif check_define __APPLE__; then
 669   targetos='Darwin'
 670 else
 671   # This is a fatal error, but don't report it yet, because we
 672   # might be going to just print the --help text, or it might
 673   # be the result of a missing compiler.
 674   targetos='bogus'
 675   bogus_os='yes'
 676 fi
 677
 678 # Some host OSes need non-standard checks for which CPU to use.
 679 # Note that these checks are broken for cross-compilation: if you're
 680 # cross-compiling to one of these OSes then you'll need to specify
 681 # the correct CPU with the --cpu option.
 682 case $targetos in
 683 Darwin)
 684   # on Leopard most of the system is 32-bit, so we have to ask the kernel if we can
 685   # run 64-bit userspace code.
 686   # If the user didn't specify a CPU explicitly and the kernel says this is
 687   # 64 bit hw, then assume x86_64. Otherwise fall through to the usual detection code.
 688   if test -z "$cpu" && test "$(sysctl -n hw.optional.x86_64)" = "1"; then
 689     cpu="x86_64"
 690   fi
 691   ;;
 692 SunOS)
 693   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 694   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 695     cpu="x86_64"
 696   fi
 697 esac
 698
 699 if test ! -z "$cpu" ; then
 700   # command line argument
 701   :
 702 elif check_define __i386__ ; then
 703   cpu="i386"
 704 elif check_define __x86_64__ ; then
 705   if check_define __ILP32__ ; then
 706     cpu="x32"
 707   else
 708     cpu="x86_64"
 709   fi
 710 elif check_define __sparc__ ; then
 711   if check_define __arch64__ ; then
 712     cpu="sparc64"
 713   else
 714     cpu="sparc"
 715   fi
 716 elif check_define _ARCH_PPC ; then
 717   if check_define _ARCH_PPC64 ; then
 718     if check_define _LITTLE_ENDIAN ; then
 719       cpu="ppc64le"
 720     else
 721       cpu="ppc64"
 722     fi
 723   else
 724     cpu="ppc"
 725   fi
 726 elif check_define __mips__ ; then
 727   cpu="mips"
 728 elif check_define __s390__ ; then
 729   if check_define __s390x__ ; then
 730     cpu="s390x"
 731   else
 732     cpu="s390"
 733   fi
 734 elif check_define __riscv ; then
 735   if check_define _LP64 ; then
 736     cpu="riscv64"
 737   else
 738     cpu="riscv32"
 739   fi
 740 elif check_define __arm__ ; then
 741   cpu="arm"
 742 elif check_define __aarch64__ ; then
 743   cpu="aarch64"
 744 else
 745   cpu=$(uname -m)
 746 fi
 747
 748 ARCH=
 749 # Normalise host CPU name and set ARCH.
 750 # Note that this case should only have supported host CPUs, not guests.
 751 case "$cpu" in
 752   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 753     supported_cpu="yes"
 754   ;;
 755   ppc64le)
 756     ARCH="ppc64"
 757     supported_cpu="yes"
 758   ;;
 759   i386|i486|i586|i686|i86pc|BePC)
 760     cpu="i386"
 761     supported_cpu="yes"
 762   ;;
 763   x86_64|amd64)
 764     cpu="x86_64"
 765     supported_cpu="yes"
 766   ;;
 767   armv*b|armv*l|arm)
 768     cpu="arm"
 769     supported_cpu="yes"
 770   ;;
 771   aarch64)
 772     cpu="aarch64"
 773     supported_cpu="yes"
 774   ;;
 775   mips*)
 776     cpu="mips"
 777     supported_cpu="yes"
 778   ;;
 779   sparc|sun4[cdmuv])
 780     cpu="sparc"
 781     supported_cpu="yes"
 782   ;;
 783   *)
 784     # This will result in either an error or falling back to TCI later
 785     ARCH=unknown
 786   ;;
 787 esac
 788 if test -z "$ARCH"; then
 789   ARCH="$cpu"
 790 fi
 791
 792 # OS specific
 793
 794 # host *BSD for user mode
 795 HOST_VARIANT_DIR=""
 796
 797 case $targetos in
 798 MINGW32*)
 799   mingw32="yes"
 800   hax="yes"
 801   vhost_user="no"
 802   audio_possible_drivers="dsound sdl"
 803   if check_include dsound.h; then
 804     audio_drv_list="dsound"
 805   else
 806     audio_drv_list=""
 807   fi
 808   supported_os="yes"
 809 ;;
 810 GNU/kFreeBSD)
 811   bsd="yes"
 812   audio_drv_list="oss try-sdl"
 813   audio_possible_drivers="oss sdl pa"
 814 ;;
 815 FreeBSD)
 816   bsd="yes"
 817   make="${MAKE-gmake}"
 818   audio_drv_list="oss try-sdl"
 819   audio_possible_drivers="oss sdl pa"
 820   # needed for kinfo_getvmmap(3) in libutil.h
 821   LIBS="-lutil $LIBS"
 822   # needed for kinfo_getproc
 823   libs_qga="-lutil $libs_qga"
 824   netmap=""  # enable netmap autodetect
 825   HOST_VARIANT_DIR="freebsd"
 826   supported_os="yes"
 827 ;;
 828 DragonFly)
 829   bsd="yes"
 830   make="${MAKE-gmake}"
 831   audio_drv_list="oss try-sdl"
 832   audio_possible_drivers="oss sdl pa"
 833   HOST_VARIANT_DIR="dragonfly"
 834 ;;
 835 NetBSD)
 836   bsd="yes"
 837   hax="yes"
 838   make="${MAKE-gmake}"
 839   audio_drv_list="oss try-sdl"
 840   audio_possible_drivers="oss sdl"
 841   oss_lib="-lossaudio"
 842   HOST_VARIANT_DIR="netbsd"
 843   supported_os="yes"
 844 ;;
 845 OpenBSD)
 846   bsd="yes"
 847   make="${MAKE-gmake}"
 848   audio_drv_list="try-sdl"
 849   audio_possible_drivers="sdl"
 850   HOST_VARIANT_DIR="openbsd"
 851   supported_os="yes"
 852 ;;
 853 Darwin)
 854   bsd="yes"
 855   darwin="yes"
 856   hax="yes"
 857   hvf="yes"
 858   LDFLAGS_SHARED="-bundle -undefined dynamic_lookup"
 859   if [ "$cpu" = "x86_64" ] ; then
 860     QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
 861     QEMU_LDFLAGS="-arch x86_64 $QEMU_LDFLAGS"
 862   fi
 863   cocoa="yes"
 864   audio_drv_list="coreaudio try-sdl"
 865   audio_possible_drivers="coreaudio sdl"
 866   QEMU_LDFLAGS="-framework CoreFoundation -framework IOKit $QEMU_LDFLAGS"
 867   libs_softmmu="-F/System/Library/Frameworks -framework Cocoa -framework IOKit $libs_softmmu"
 868   # Disable attempts to use ObjectiveC features in os/object.h since they
 869   # won't work when we're compiling with gcc as a C compiler.
 870   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 871   HOST_VARIANT_DIR="darwin"
 872   supported_os="yes"
 873 ;;
 874 SunOS)
 875   solaris="yes"
 876   make="${MAKE-gmake}"
 877   install="${INSTALL-ginstall}"
 878   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 879   if test -f /usr/include/sys/soundcard.h ; then
 880     audio_drv_list="oss try-sdl"
 881   fi
 882   audio_possible_drivers="oss sdl"
 883 # needed for CMSG_ macros in sys/socket.h
 884   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 885 # needed for TIOCWIN* defines in termios.h
 886   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 887   QEMU_CFLAGS="-std=gnu99 $QEMU_CFLAGS"
 888   solarisnetlibs="-lsocket -lnsl -lresolv"
 889   LIBS="$solarisnetlibs $LIBS"
 890   libs_qga="$solarisnetlibs $libs_qga"
 891 ;;
 892 Haiku)
 893   haiku="yes"
 894   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS $QEMU_CFLAGS"
 895   LIBS="-lposix_error_mapper -lnetwork $LIBS"
 896 ;;
 897 Linux)
 898   audio_drv_list="try-pa oss"
 899   audio_possible_drivers="oss alsa sdl pa"
 900   linux="yes"
 901   linux_user="yes"
 902   kvm="yes"
 903   QEMU_INCLUDES="-I\$(SRC_PATH)/linux-headers -I$PWD/linux-headers $QEMU_INCLUDES"
 904   supported_os="yes"
 905   libudev="yes"
 906 ;;
 907 esac
 908
 909 if [ "$bsd" = "yes" ] ; then
 910   if [ "$darwin" != "yes" ] ; then
 911     bsd_user="yes"
 912   fi
 913 fi
 914
 915 : ${make=${MAKE-make}}
 916 : ${install=${INSTALL-install}}
 917 # We prefer python 3.x. A bare 'python' is traditionally
 918 # python 2.x, but some distros have it as python 3.x, so
 919 # we check that too
 920 python=
 921 for binary in "${PYTHON-python3}" python
 922 do
 923     if has "$binary"
 924     then
 925         python=$(command -v "$binary")
 926         break
 927     fi
 928 done
 929
 930 sphinx_build=
 931 for binary in sphinx-build-3 sphinx-build
 932 do
 933     if has "$binary"
 934     then
 935         sphinx_build=$(command -v "$binary")
 936         break
 937     fi
 938 done
 939
 940 # Check for ancillary tools used in testing
 941 genisoimage=
 942 for binary in genisoimage
 943 do
 944     if has $binary
 945     then
 946         genisoimage=$(command -v "$binary")
 947         break
 948     fi
 949 done
 950
 951 : ${smbd=${SMBD-/usr/sbin/smbd}}
 952
 953 # Default objcc to clang if available, otherwise use CC
 954 if has clang; then
 955   objcc=clang
 956 else
 957   objcc="$cc"
 958 fi
 959
 960 if test "$mingw32" = "yes" ; then
 961   EXESUF=".exe"
 962   DSOSUF=".dll"
 963   # MinGW needs -mthreads for TLS and macro _MT.
 964   QEMU_CFLAGS="-mthreads $QEMU_CFLAGS"
 965   LIBS="-lwinmm -lws2_32 $LIBS"
 966   write_c_skeleton;
 967   if compile_prog "" "-liberty" ; then
 968     LIBS="-liberty $LIBS"
 969   fi
 970   prefix="c:/Program Files/QEMU"
 971   mandir="\${prefix}"
 972   datadir="\${prefix}"
 973   qemu_docdir="\${prefix}"
 974   bindir="\${prefix}"
 975   sysconfdir="\${prefix}"
 976   local_statedir=
 977   confsuffix=""
 978   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 979 fi
 980
 981 werror=""
 982
 983 for opt do
 984   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 985   case "$opt" in
 986   --help|-h) show_help=yes
 987   ;;
 988   --version|-V) exec cat $source_path/VERSION
 989   ;;
 990   --prefix=*) prefix="$optarg"
 991   ;;
 992   --interp-prefix=*) interp_prefix="$optarg"
 993   ;;
 994   --cross-prefix=*)
 995   ;;
 996   --cc=*)
 997   ;;
 998   --host-cc=*) host_cc="$optarg"
 999   ;;
1000   --cxx=*)
1001   ;;
1002   --iasl=*) iasl="$optarg"
1003   ;;
1004   --objcc=*) objcc="$optarg"
1005   ;;
1006   --make=*) make="$optarg"
1007   ;;
1008   --install=*) install="$optarg"
1009   ;;
1010   --python=*) python="$optarg"
1011   ;;
1012   --sphinx-build=*) sphinx_build="$optarg"
1013   ;;
1014   --gcov=*) gcov_tool="$optarg"
1015   ;;
1016   --smbd=*) smbd="$optarg"
1017   ;;
1018   --extra-cflags=*)
1019   ;;
1020   --extra-cxxflags=*)
1021   ;;
1022   --extra-ldflags=*)
1023   ;;
1024   --enable-debug-info)
1025   ;;
1026   --disable-debug-info)
1027   ;;
1028   --cross-cc-*)
1029   ;;
1030   --enable-modules)
1031       modules="yes"
1032   ;;
1033   --disable-modules)
1034       modules="no"
1035   ;;
1036   --disable-module-upgrades) module_upgrades="no"
1037   ;;
1038   --enable-module-upgrades) module_upgrades="yes"
1039   ;;
1040   --cpu=*)
1041   ;;
1042   --target-list=*) target_list="$optarg"
1043                    if test "$target_list_exclude"; then
1044                        error_exit "Can't mix --target-list with --target-list-exclude"
1045                    fi
1046   ;;
1047   --target-list-exclude=*) target_list_exclude="$optarg"
1048                    if test "$target_list"; then
1049                        error_exit "Can't mix --target-list-exclude with --target-list"
1050                    fi
1051   ;;
1052   --enable-trace-backends=*) trace_backends="$optarg"
1053   ;;
1054   # XXX: backwards compatibility
1055   --enable-trace-backend=*) trace_backends="$optarg"
1056   ;;
1057   --with-trace-file=*) trace_file="$optarg"
1058   ;;
1059   --with-default-devices) default_devices="yes"
1060   ;;
1061   --without-default-devices) default_devices="no"
1062   ;;
1063   --enable-gprof) gprof="yes"
1064   ;;
1065   --enable-gcov) gcov="yes"
1066   ;;
1067   --static)
1068     static="yes"
1069     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
1070     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
1071   ;;
1072   --mandir=*) mandir="$optarg"
1073   ;;
1074   --bindir=*) bindir="$optarg"
1075   ;;
1076   --libdir=*) libdir="$optarg"
1077   ;;
1078   --libexecdir=*) libexecdir="$optarg"
1079   ;;
1080   --includedir=*) includedir="$optarg"
1081   ;;
1082   --datadir=*) datadir="$optarg"
1083   ;;
1084   --with-confsuffix=*) confsuffix="$optarg"
1085   ;;
1086   --docdir=*) qemu_docdir="$optarg"
1087   ;;
1088   --sysconfdir=*) sysconfdir="$optarg"
1089   ;;
1090   --localstatedir=*) local_statedir="$optarg"
1091   ;;
1092   --firmwarepath=*) firmwarepath="$optarg"
1093   ;;
1094   --host=*|--build=*|\
1095   --disable-dependency-tracking|\
1096   --sbindir=*|--sharedstatedir=*|\
1097   --oldincludedir=*|--datarootdir=*|--infodir=*|--localedir=*|\
1098   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
1099     # These switches are silently ignored, for compatibility with
1100     # autoconf-generated configure scripts. This allows QEMU's
1101     # configure to be used by RPM and similar macros that set
1102     # lots of directory switches by default.
1103   ;;
1104   --disable-sdl) sdl="no"
1105   ;;
1106   --enable-sdl) sdl="yes"
1107   ;;
1108   --disable-sdl-image) sdl_image="no"
1109   ;;
1110   --enable-sdl-image) sdl_image="yes"
1111   ;;
1112   --disable-qom-cast-debug) qom_cast_debug="no"
1113   ;;
1114   --enable-qom-cast-debug) qom_cast_debug="yes"
1115   ;;
1116   --disable-virtfs) virtfs="no"
1117   ;;
1118   --enable-virtfs) virtfs="yes"
1119   ;;
1120   --disable-mpath) mpath="no"
1121   ;;
1122   --enable-mpath) mpath="yes"
1123   ;;
1124   --disable-vnc) vnc="no"
1125   ;;
1126   --enable-vnc) vnc="yes"
1127   ;;
1128   --oss-lib=*) oss_lib="$optarg"
1129   ;;
1130   --audio-drv-list=*) audio_drv_list="$optarg"
1131   ;;
1132   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1133   ;;
1134   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1135   ;;
1136   --enable-debug-tcg) debug_tcg="yes"
1137   ;;
1138   --disable-debug-tcg) debug_tcg="no"
1139   ;;
1140   --enable-debug)
1141       # Enable debugging options that aren't excessively noisy
1142       debug_tcg="yes"
1143       debug_mutex="yes"
1144       debug="yes"
1145       strip_opt="no"
1146       fortify_source="no"
1147   ;;
1148   --enable-sanitizers) sanitizers="yes"
1149   ;;
1150   --disable-sanitizers) sanitizers="no"
1151   ;;
1152   --enable-sparse) sparse="yes"
1153   ;;
1154   --disable-sparse) sparse="no"
1155   ;;
1156   --disable-strip) strip_opt="no"
1157   ;;
1158   --disable-vnc-sasl) vnc_sasl="no"
1159   ;;
1160   --enable-vnc-sasl) vnc_sasl="yes"
1161   ;;
1162   --disable-vnc-jpeg) vnc_jpeg="no"
1163   ;;
1164   --enable-vnc-jpeg) vnc_jpeg="yes"
1165   ;;
1166   --disable-vnc-png) vnc_png="no"
1167   ;;
1168   --enable-vnc-png) vnc_png="yes"
1169   ;;
1170   --disable-slirp) slirp="no"
1171   ;;
1172   --enable-slirp=git) slirp="git"
1173   ;;
1174   --enable-slirp=system) slirp="system"
1175   ;;
1176   --disable-vde) vde="no"
1177   ;;
1178   --enable-vde) vde="yes"
1179   ;;
1180   --disable-netmap) netmap="no"
1181   ;;
1182   --enable-netmap) netmap="yes"
1183   ;;
1184   --disable-xen) xen="no"
1185   ;;
1186   --enable-xen) xen="yes"
1187   ;;
1188   --disable-xen-pci-passthrough) xen_pci_passthrough="no"
1189   ;;
1190   --enable-xen-pci-passthrough) xen_pci_passthrough="yes"
1191   ;;
1192   --disable-brlapi) brlapi="no"
1193   ;;
1194   --enable-brlapi) brlapi="yes"
1195   ;;
1196   --disable-kvm) kvm="no"
1197   ;;
1198   --enable-kvm) kvm="yes"
1199   ;;
1200   --disable-hax) hax="no"
1201   ;;
1202   --enable-hax) hax="yes"
1203   ;;
1204   --disable-hvf) hvf="no"
1205   ;;
1206   --enable-hvf) hvf="yes"
1207   ;;
1208   --disable-whpx) whpx="no"
1209   ;;
1210   --enable-whpx) whpx="yes"
1211   ;;
1212   --disable-tcg-interpreter) tcg_interpreter="no"
1213   ;;
1214   --enable-tcg-interpreter) tcg_interpreter="yes"
1215   ;;
1216   --disable-cap-ng)  cap_ng="no"
1217   ;;
1218   --enable-cap-ng) cap_ng="yes"
1219   ;;
1220   --disable-tcg) tcg="no"
1221   ;;
1222   --enable-tcg) tcg="yes"
1223   ;;
1224   --disable-malloc-trim) malloc_trim="no"
1225   ;;
1226   --enable-malloc-trim) malloc_trim="yes"
1227   ;;
1228   --disable-spice) spice="no"
1229   ;;
1230   --enable-spice) spice="yes"
1231   ;;
1232   --disable-libiscsi) libiscsi="no"
1233   ;;
1234   --enable-libiscsi) libiscsi="yes"
1235   ;;
1236   --disable-libnfs) libnfs="no"
1237   ;;
1238   --enable-libnfs) libnfs="yes"
1239   ;;
1240   --enable-profiler) profiler="yes"
1241   ;;
1242   --disable-cocoa) cocoa="no"
1243   ;;
1244   --enable-cocoa)
1245       cocoa="yes" ;
1246       audio_drv_list="coreaudio $(echo $audio_drv_list | sed s,coreaudio,,g)"
1247   ;;
1248   --disable-system) softmmu="no"
1249   ;;
1250   --enable-system) softmmu="yes"
1251   ;;
1252   --disable-user)
1253       linux_user="no" ;
1254       bsd_user="no" ;
1255   ;;
1256   --enable-user) ;;
1257   --disable-linux-user) linux_user="no"
1258   ;;
1259   --enable-linux-user) linux_user="yes"
1260   ;;
1261   --disable-bsd-user) bsd_user="no"
1262   ;;
1263   --enable-bsd-user) bsd_user="yes"
1264   ;;
1265   --enable-pie) pie="yes"
1266   ;;
1267   --disable-pie) pie="no"
1268   ;;
1269   --enable-werror) werror="yes"
1270   ;;
1271   --disable-werror) werror="no"
1272   ;;
1273   --enable-stack-protector) stack_protector="yes"
1274   ;;
1275   --disable-stack-protector) stack_protector="no"
1276   ;;
1277   --disable-curses) curses="no"
1278   ;;
1279   --enable-curses) curses="yes"
1280   ;;
1281   --disable-iconv) iconv="no"
1282   ;;
1283   --enable-iconv) iconv="yes"
1284   ;;
1285   --disable-curl) curl="no"
1286   ;;
1287   --enable-curl) curl="yes"
1288   ;;
1289   --disable-fdt) fdt="no"
1290   ;;
1291   --enable-fdt) fdt="yes"
1292   ;;
1293   --disable-linux-aio) linux_aio="no"
1294   ;;
1295   --enable-linux-aio) linux_aio="yes"
1296   ;;
1297   --disable-linux-io-uring) linux_io_uring="no"
1298   ;;
1299   --enable-linux-io-uring) linux_io_uring="yes"
1300   ;;
1301   --disable-attr) attr="no"
1302   ;;
1303   --enable-attr) attr="yes"
1304   ;;
1305   --disable-membarrier) membarrier="no"
1306   ;;
1307   --enable-membarrier) membarrier="yes"
1308   ;;
1309   --disable-blobs) blobs="no"
1310   ;;
1311   --with-pkgversion=*) pkgversion="$optarg"
1312   ;;
1313   --with-coroutine=*) coroutine="$optarg"
1314   ;;
1315   --disable-coroutine-pool) coroutine_pool="no"
1316   ;;
1317   --enable-coroutine-pool) coroutine_pool="yes"
1318   ;;
1319   --enable-debug-stack-usage) debug_stack_usage="yes"
1320   ;;
1321   --enable-crypto-afalg) crypto_afalg="yes"
1322   ;;
1323   --disable-crypto-afalg) crypto_afalg="no"
1324   ;;
1325   --disable-docs) docs="no"
1326   ;;
1327   --enable-docs) docs="yes"
1328   ;;
1329   --disable-vhost-net) vhost_net="no"
1330   ;;
1331   --enable-vhost-net) vhost_net="yes"
1332   ;;
1333   --disable-vhost-crypto) vhost_crypto="no"
1334   ;;
1335   --enable-vhost-crypto) vhost_crypto="yes"
1336   ;;
1337   --disable-vhost-scsi) vhost_scsi="no"
1338   ;;
1339   --enable-vhost-scsi) vhost_scsi="yes"
1340   ;;
1341   --disable-vhost-vsock) vhost_vsock="no"
1342   ;;
1343   --enable-vhost-vsock) vhost_vsock="yes"
1344   ;;
1345   --disable-vhost-user-fs) vhost_user_fs="no"
1346   ;;
1347   --enable-vhost-user-fs) vhost_user_fs="yes"
1348   ;;
1349   --disable-opengl) opengl="no"
1350   ;;
1351   --enable-opengl) opengl="yes"
1352   ;;
1353   --disable-rbd) rbd="no"
1354   ;;
1355   --enable-rbd) rbd="yes"
1356   ;;
1357   --disable-xfsctl) xfs="no"
1358   ;;
1359   --enable-xfsctl) xfs="yes"
1360   ;;
1361   --disable-smartcard) smartcard="no"
1362   ;;
1363   --enable-smartcard) smartcard="yes"
1364   ;;
1365   --disable-libusb) libusb="no"
1366   ;;
1367   --enable-libusb) libusb="yes"
1368   ;;
1369   --disable-usb-redir) usb_redir="no"
1370   ;;
1371   --enable-usb-redir) usb_redir="yes"
1372   ;;
1373   --disable-zlib-test) zlib="no"
1374   ;;
1375   --disable-lzo) lzo="no"
1376   ;;
1377   --enable-lzo) lzo="yes"
1378   ;;
1379   --disable-snappy) snappy="no"
1380   ;;
1381   --enable-snappy) snappy="yes"
1382   ;;
1383   --disable-bzip2) bzip2="no"
1384   ;;
1385   --enable-bzip2) bzip2="yes"
1386   ;;
1387   --enable-lzfse) lzfse="yes"
1388   ;;
1389   --disable-lzfse) lzfse="no"
1390   ;;
1391   --disable-zstd) zstd="no"
1392   ;;
1393   --enable-zstd) zstd="yes"
1394   ;;
1395   --enable-guest-agent) guest_agent="yes"
1396   ;;
1397   --disable-guest-agent) guest_agent="no"
1398   ;;
1399   --enable-guest-agent-msi) guest_agent_msi="yes"
1400   ;;
1401   --disable-guest-agent-msi) guest_agent_msi="no"
1402   ;;
1403   --with-vss-sdk) vss_win32_sdk=""
1404   ;;
1405   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1406   ;;
1407   --without-vss-sdk) vss_win32_sdk="no"
1408   ;;
1409   --with-win-sdk) win_sdk=""
1410   ;;
1411   --with-win-sdk=*) win_sdk="$optarg"
1412   ;;
1413   --without-win-sdk) win_sdk="no"
1414   ;;
1415   --enable-tools) want_tools="yes"
1416   ;;
1417   --disable-tools) want_tools="no"
1418   ;;
1419   --enable-seccomp) seccomp="yes"
1420   ;;
1421   --disable-seccomp) seccomp="no"
1422   ;;
1423   --disable-glusterfs) glusterfs="no"
1424   ;;
1425   --disable-avx2) avx2_opt="no"
1426   ;;
1427   --enable-avx2) avx2_opt="yes"
1428   ;;
1429   --disable-avx512f) avx512f_opt="no"
1430   ;;
1431   --enable-avx512f) avx512f_opt="yes"
1432   ;;
1433
1434   --enable-glusterfs) glusterfs="yes"
1435   ;;
1436   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1437       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1438   ;;
1439   --enable-vhdx|--disable-vhdx)
1440       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1441   ;;
1442   --enable-uuid|--disable-uuid)
1443       echo "$0: $opt is obsolete, UUID support is always built" >&2
1444   ;;
1445   --disable-gtk) gtk="no"
1446   ;;
1447   --enable-gtk) gtk="yes"
1448   ;;
1449   --tls-priority=*) tls_priority="$optarg"
1450   ;;
1451   --disable-gnutls) gnutls="no"
1452   ;;
1453   --enable-gnutls) gnutls="yes"
1454   ;;
1455   --disable-nettle) nettle="no"
1456   ;;
1457   --enable-nettle) nettle="yes"
1458   ;;
1459   --disable-gcrypt) gcrypt="no"
1460   ;;
1461   --enable-gcrypt) gcrypt="yes"
1462   ;;
1463   --disable-auth-pam) auth_pam="no"
1464   ;;
1465   --enable-auth-pam) auth_pam="yes"
1466   ;;
1467   --enable-rdma) rdma="yes"
1468   ;;
1469   --disable-rdma) rdma="no"
1470   ;;
1471   --enable-pvrdma) pvrdma="yes"
1472   ;;
1473   --disable-pvrdma) pvrdma="no"
1474   ;;
1475   --disable-vte) vte="no"
1476   ;;
1477   --enable-vte) vte="yes"
1478   ;;
1479   --disable-virglrenderer) virglrenderer="no"
1480   ;;
1481   --enable-virglrenderer) virglrenderer="yes"
1482   ;;
1483   --disable-tpm) tpm="no"
1484   ;;
1485   --enable-tpm) tpm="yes"
1486   ;;
1487   --disable-libssh) libssh="no"
1488   ;;
1489   --enable-libssh) libssh="yes"
1490   ;;
1491   --disable-live-block-migration) live_block_migration="no"
1492   ;;
1493   --enable-live-block-migration) live_block_migration="yes"
1494   ;;
1495   --disable-numa) numa="no"
1496   ;;
1497   --enable-numa) numa="yes"
1498   ;;
1499   --disable-libxml2) libxml2="no"
1500   ;;
1501   --enable-libxml2) libxml2="yes"
1502   ;;
1503   --disable-tcmalloc) tcmalloc="no"
1504   ;;
1505   --enable-tcmalloc) tcmalloc="yes"
1506   ;;
1507   --disable-jemalloc) jemalloc="no"
1508   ;;
1509   --enable-jemalloc) jemalloc="yes"
1510   ;;
1511   --disable-replication) replication="no"
1512   ;;
1513   --enable-replication) replication="yes"
1514   ;;
1515   --disable-vxhs) vxhs="no"
1516   ;;
1517   --enable-vxhs) vxhs="yes"
1518   ;;
1519   --disable-bochs) bochs="no"
1520   ;;
1521   --enable-bochs) bochs="yes"
1522   ;;
1523   --disable-cloop) cloop="no"
1524   ;;
1525   --enable-cloop) cloop="yes"
1526   ;;
1527   --disable-dmg) dmg="no"
1528   ;;
1529   --enable-dmg) dmg="yes"
1530   ;;
1531   --disable-qcow1) qcow1="no"
1532   ;;
1533   --enable-qcow1) qcow1="yes"
1534   ;;
1535   --disable-vdi) vdi="no"
1536   ;;
1537   --enable-vdi) vdi="yes"
1538   ;;
1539   --disable-vvfat) vvfat="no"
1540   ;;
1541   --enable-vvfat) vvfat="yes"
1542   ;;
1543   --disable-qed) qed="no"
1544   ;;
1545   --enable-qed) qed="yes"
1546   ;;
1547   --disable-parallels) parallels="no"
1548   ;;
1549   --enable-parallels) parallels="yes"
1550   ;;
1551   --disable-sheepdog) sheepdog="no"
1552   ;;
1553   --enable-sheepdog) sheepdog="yes"
1554   ;;
1555   --disable-vhost-user) vhost_user="no"
1556   ;;
1557   --enable-vhost-user) vhost_user="yes"
1558   ;;
1559   --disable-vhost-kernel) vhost_kernel="no"
1560   ;;
1561   --enable-vhost-kernel) vhost_kernel="yes"
1562   ;;
1563   --disable-capstone) capstone="no"
1564   ;;
1565   --enable-capstone) capstone="yes"
1566   ;;
1567   --enable-capstone=git) capstone="git"
1568   ;;
1569   --enable-capstone=system) capstone="system"
1570   ;;
1571   --with-git=*) git="$optarg"
1572   ;;
1573   --enable-git-update) git_update=yes
1574   ;;
1575   --disable-git-update) git_update=no
1576   ;;
1577   --enable-debug-mutex) debug_mutex=yes
1578   ;;
1579   --disable-debug-mutex) debug_mutex=no
1580   ;;
1581   --enable-libpmem) libpmem=yes
1582   ;;
1583   --disable-libpmem) libpmem=no
1584   ;;
1585   --enable-xkbcommon) xkbcommon=yes
1586   ;;
1587   --disable-xkbcommon) xkbcommon=no
1588   ;;
1589   --enable-plugins) plugins="yes"
1590   ;;
1591   --disable-plugins) plugins="no"
1592   ;;
1593   --enable-containers) use_containers="yes"
1594   ;;
1595   --disable-containers) use_containers="no"
1596   ;;
1597   --enable-fuzzing) fuzzing=yes
1598   ;;
1599   --disable-fuzzing) fuzzing=no
1600   ;;
1601   *)
1602       echo "ERROR: unknown option $opt"
1603       echo "Try '$0 --help' for more information"
1604       exit 1
1605   ;;
1606   esac
1607 done
1608
1609 case "$cpu" in
1610     ppc)
1611            CPU_CFLAGS="-m32"
1612            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1613            ;;
1614     ppc64)
1615            CPU_CFLAGS="-m64"
1616            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1617            ;;
1618     sparc)
1619            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1620            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1621            ;;
1622     sparc64)
1623            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1624            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1625            ;;
1626     s390)
1627            CPU_CFLAGS="-m31"
1628            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1629            ;;
1630     s390x)
1631            CPU_CFLAGS="-m64"
1632            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1633            ;;
1634     i386)
1635            CPU_CFLAGS="-m32"
1636            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1637            ;;
1638     x86_64)
1639            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1640            # If we truly care, we should simply detect this case at
1641            # runtime and generate the fallback to serial emulation.
1642            CPU_CFLAGS="-m64 -mcx16"
1643            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1644            ;;
1645     x32)
1646            CPU_CFLAGS="-mx32"
1647            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1648            ;;
1649     # No special flags required for other host CPUs
1650 esac
1651
1652 eval "cross_cc_${cpu}=\$host_cc"
1653 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1654 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1655
1656 # For user-mode emulation the host arch has to be one we explicitly
1657 # support, even if we're using TCI.
1658 if [ "$ARCH" = "unknown" ]; then
1659   bsd_user="no"
1660   linux_user="no"
1661 fi
1662
1663 default_target_list=""
1664
1665 mak_wilds=""
1666
1667 if [ "$softmmu" = "yes" ]; then
1668     mak_wilds="${mak_wilds} $source_path/default-configs/*-softmmu.mak"
1669 fi
1670 if [ "$linux_user" = "yes" ]; then
1671     mak_wilds="${mak_wilds} $source_path/default-configs/*-linux-user.mak"
1672 fi
1673 if [ "$bsd_user" = "yes" ]; then
1674     mak_wilds="${mak_wilds} $source_path/default-configs/*-bsd-user.mak"
1675 fi
1676
1677 if test -z "$target_list_exclude"; then
1678     for config in $mak_wilds; do
1679         default_target_list="${default_target_list} $(basename "$config" .mak)"
1680     done
1681 else
1682     exclude_list=$(echo "$target_list_exclude" | sed -e 's/,/ /g')
1683     for config in $mak_wilds; do
1684         target="$(basename "$config" .mak)"
1685         exclude="no"
1686         for excl in $exclude_list; do
1687             if test "$excl" = "$target"; then
1688                 exclude="yes"
1689                 break;
1690             fi
1691         done
1692         if test "$exclude" = "no"; then
1693             default_target_list="${default_target_list} $target"
1694         fi
1695     done
1696 fi
1697
1698 # Enumerate public trace backends for --help output
1699 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1700
1701 if test x"$show_help" = x"yes" ; then
1702 cat << EOF
1703
1704 Usage: configure [options]
1705 Options: [defaults in brackets after descriptions]
1706
1707 Standard options:
1708   --help                   print this message
1709   --prefix=PREFIX          install in PREFIX [$prefix]
1710   --interp-prefix=PREFIX   where to find shared libraries, etc.
1711                            use %M for cpu name [$interp_prefix]
1712   --target-list=LIST       set target list (default: build everything)
1713 $(echo Available targets: $default_target_list | \
1714   fold -s -w 53 | sed -e 's/^/                           /')
1715   --target-list-exclude=LIST exclude a set of targets from the default target-list
1716
1717 Advanced options (experts only):
1718   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
1719   --cc=CC                  use C compiler CC [$cc]
1720   --iasl=IASL              use ACPI compiler IASL [$iasl]
1721   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1722                            build time
1723   --cxx=CXX                use C++ compiler CXX [$cxx]
1724   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1725   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1726   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1727   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1728   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1729   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1730   --make=MAKE              use specified make [$make]
1731   --install=INSTALL        use specified install [$install]
1732   --python=PYTHON          use specified python [$python]
1733   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1734   --smbd=SMBD              use specified smbd [$smbd]
1735   --with-git=GIT           use specified git [$git]
1736   --static                 enable static build [$static]
1737   --mandir=PATH            install man pages in PATH
1738   --datadir=PATH           install firmware in PATH$confsuffix
1739   --docdir=PATH            install documentation in PATH$confsuffix
1740   --bindir=PATH            install binaries in PATH
1741   --libdir=PATH            install libraries in PATH
1742   --libexecdir=PATH        install helper binaries in PATH
1743   --sysconfdir=PATH        install config in PATH$confsuffix
1744   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1745   --firmwarepath=PATH      search PATH for firmware files
1746   --with-confsuffix=SUFFIX suffix for QEMU data inside datadir/libdir/sysconfdir [$confsuffix]
1747   --with-pkgversion=VERS   use specified string as sub-version of the package
1748   --enable-debug           enable common debug build options
1749   --enable-sanitizers      enable default sanitizers
1750   --disable-strip          disable stripping binaries
1751   --disable-werror         disable compilation abort on warning
1752   --disable-stack-protector disable compiler-provided stack protection
1753   --audio-drv-list=LIST    set audio drivers list:
1754                            Available drivers: $audio_possible_drivers
1755   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1756   --block-drv-rw-whitelist=L
1757                            set block driver read-write whitelist
1758                            (affects only QEMU, not qemu-img)
1759   --block-drv-ro-whitelist=L
1760                            set block driver read-only whitelist
1761                            (affects only QEMU, not qemu-img)
1762   --enable-trace-backends=B Set trace backend
1763                            Available backends: $trace_backend_list
1764   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1765                            Default:trace-<pid>
1766   --disable-slirp          disable SLIRP userspace network connectivity
1767   --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)
1768   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1769   --oss-lib                path to OSS library
1770   --cpu=CPU                Build for host CPU [$cpu]
1771   --with-coroutine=BACKEND coroutine backend. Supported options:
1772                            ucontext, sigaltstack, windows
1773   --enable-gcov            enable test coverage analysis with gcov
1774   --gcov=GCOV              use specified gcov [$gcov_tool]
1775   --disable-blobs          disable installing provided firmware blobs
1776   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1777   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1778   --tls-priority           default TLS protocol/cipher priority string
1779   --enable-gprof           QEMU profiling with gprof
1780   --enable-profiler        profiler support
1781   --enable-debug-stack-usage
1782                            track the maximum stack usage of stacks created by qemu_alloc_stack
1783   --enable-plugins
1784                            enable plugins via shared library loading
1785   --disable-containers     don't use containers for cross-building
1786
1787 Optional features, enabled with --enable-FEATURE and
1788 disabled with --disable-FEATURE, default is enabled if available:
1789
1790   system          all system emulation targets
1791   user            supported user emulation targets
1792   linux-user      all linux usermode emulation targets
1793   bsd-user        all BSD usermode emulation targets
1794   docs            build documentation
1795   guest-agent     build the QEMU Guest Agent
1796   guest-agent-msi build guest agent Windows MSI installation package
1797   pie             Position Independent Executables
1798   modules         modules support (non-Windows)
1799   module-upgrades try to load modules from alternate paths for upgrades
1800   debug-tcg       TCG debugging (default is disabled)
1801   debug-info      debugging information
1802   sparse          sparse checker
1803
1804   gnutls          GNUTLS cryptography support
1805   nettle          nettle cryptography support
1806   gcrypt          libgcrypt cryptography support
1807   auth-pam        PAM access control
1808   sdl             SDL UI
1809   sdl-image       SDL Image support for icons
1810   gtk             gtk UI
1811   vte             vte support for the gtk UI
1812   curses          curses UI
1813   iconv           font glyph conversion support
1814   vnc             VNC UI support
1815   vnc-sasl        SASL encryption for VNC server
1816   vnc-jpeg        JPEG lossy compression for VNC server
1817   vnc-png         PNG compression for VNC server
1818   cocoa           Cocoa UI (Mac OS X only)
1819   virtfs          VirtFS
1820   mpath           Multipath persistent reservation passthrough
1821   xen             xen backend driver support
1822   xen-pci-passthrough    PCI passthrough support for Xen
1823   brlapi          BrlAPI (Braile)
1824   curl            curl connectivity
1825   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1826   fdt             fdt device tree
1827   kvm             KVM acceleration support
1828   hax             HAX acceleration support
1829   hvf             Hypervisor.framework acceleration support
1830   whpx            Windows Hypervisor Platform acceleration support
1831   rdma            Enable RDMA-based migration
1832   pvrdma          Enable PVRDMA support
1833   vde             support for vde network
1834   netmap          support for netmap network
1835   linux-aio       Linux AIO support
1836   linux-io-uring  Linux io_uring support
1837   cap-ng          libcap-ng support
1838   attr            attr and xattr support
1839   vhost-net       vhost-net kernel acceleration support
1840   vhost-vsock     virtio sockets device support
1841   vhost-scsi      vhost-scsi kernel target support
1842   vhost-crypto    vhost-user-crypto backend support
1843   vhost-kernel    vhost kernel backend support
1844   vhost-user      vhost-user backend support
1845   spice           spice
1846   rbd             rados block device (rbd)
1847   libiscsi        iscsi support
1848   libnfs          nfs support
1849   smartcard       smartcard support (libcacard)
1850   libusb          libusb (for usb passthrough)
1851   live-block-migration   Block migration in the main migration stream
1852   usb-redir       usb network redirection support
1853   lzo             support of lzo compression library
1854   snappy          support of snappy compression library
1855   bzip2           support of bzip2 compression library
1856                   (for reading bzip2-compressed dmg images)
1857   lzfse           support of lzfse compression library
1858                   (for reading lzfse-compressed dmg images)
1859   zstd            support for zstd compression library
1860                   (for migration compression)
1861   seccomp         seccomp support
1862   coroutine-pool  coroutine freelist (better performance)
1863   glusterfs       GlusterFS backend
1864   tpm             TPM support
1865   libssh          ssh block device support
1866   numa            libnuma support
1867   libxml2         for Parallels image format
1868   tcmalloc        tcmalloc support
1869   jemalloc        jemalloc support
1870   avx2            AVX2 optimization support
1871   avx512f         AVX512F optimization support
1872   replication     replication support
1873   opengl          opengl support
1874   virglrenderer   virgl rendering support
1875   xfsctl          xfsctl support
1876   qom-cast-debug  cast debugging support
1877   tools           build qemu-io, qemu-nbd and qemu-img tools
1878   vxhs            Veritas HyperScale vDisk backend support
1879   bochs           bochs image format support
1880   cloop           cloop image format support
1881   dmg             dmg image format support
1882   qcow1           qcow v1 image format support
1883   vdi             vdi image format support
1884   vvfat           vvfat image format support
1885   qed             qed image format support
1886   parallels       parallels image format support
1887   sheepdog        sheepdog block driver support
1888   crypto-afalg    Linux AF_ALG crypto backend driver
1889   capstone        capstone disassembler support
1890   debug-mutex     mutex debugging support
1891   libpmem         libpmem support
1892   xkbcommon       xkbcommon support
1893
1894 NOTE: The object files are built at the place where configure is launched
1895 EOF
1896 exit 0
1897 fi
1898
1899 # Remove old dependency files to make sure that they get properly regenerated
1900 rm -f */config-devices.mak.d
1901
1902 if test -z "$python"
1903 then
1904     error_exit "Python not found. Use --python=/path/to/python"
1905 fi
1906
1907 # Note that if the Python conditional here evaluates True we will exit
1908 # with status 1 which is a shell 'false' value.
1909 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,5))'; then
1910   error_exit "Cannot use '$python', Python >= 3.5 is required." \
1911       "Use --python=/path/to/python to specify a supported Python."
1912 fi
1913
1914 # Preserve python version since some functionality is dependent on it
1915 python_version=$($python -c 'import sys; print("%d.%d.%d" % (sys.version_info[0], sys.version_info[1], sys.version_info[2]))' 2>/dev/null)
1916
1917 # Suppress writing compiled files
1918 python="$python -B"
1919
1920 # Check that the C compiler works. Doing this here before testing
1921 # the host CPU ensures that we had a valid CC to autodetect the
1922 # $cpu var (and we should bail right here if that's not the case).
1923 # It also allows the help message to be printed without a CC.
1924 write_c_skeleton;
1925 if compile_object ; then
1926   : C compiler works ok
1927 else
1928     error_exit "\"$cc\" either does not exist or does not work"
1929 fi
1930 if ! compile_prog ; then
1931     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1932 fi
1933
1934 # Now we have handled --enable-tcg-interpreter and know we're not just
1935 # printing the help message, bail out if the host CPU isn't supported.
1936 if test "$ARCH" = "unknown"; then
1937     if test "$tcg_interpreter" = "yes" ; then
1938         echo "Unsupported CPU = $cpu, will use TCG with TCI (experimental)"
1939     else
1940         error_exit "Unsupported CPU = $cpu, try --enable-tcg-interpreter"
1941     fi
1942 fi
1943
1944 # Consult white-list to determine whether to enable werror
1945 # by default.  Only enable by default for git builds
1946 if test -z "$werror" ; then
1947     if test -e "$source_path/.git" && \
1948         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1949         werror="yes"
1950     else
1951         werror="no"
1952     fi
1953 fi
1954
1955 if test "$bogus_os" = "yes"; then
1956     # Now that we know that we're not printing the help and that
1957     # the compiler works (so the results of the check_defines we used
1958     # to identify the OS are reliable), if we didn't recognize the
1959     # host OS we should stop now.
1960     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1961 fi
1962
1963 # Check whether the compiler matches our minimum requirements:
1964 cat > $TMPC << EOF
1965 #if defined(__clang_major__) && defined(__clang_minor__)
1966 # ifdef __apple_build_version__
1967 #  if __clang_major__ < 5 || (__clang_major__ == 5 && __clang_minor__ < 1)
1968 #   error You need at least XCode Clang v5.1 to compile QEMU
1969 #  endif
1970 # else
1971 #  if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 4)
1972 #   error You need at least Clang v3.4 to compile QEMU
1973 #  endif
1974 # endif
1975 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1976 # if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
1977 #  error You need at least GCC v4.8 to compile QEMU
1978 # endif
1979 #else
1980 # error You either need GCC or Clang to compiler QEMU
1981 #endif
1982 int main (void) { return 0; }
1983 EOF
1984 if ! compile_prog "" "" ; then
1985     error_exit "You need at least GCC v4.8 or Clang v3.4 (or XCode Clang v5.1)"
1986 fi
1987
1988 gcc_flags="-Wold-style-declaration -Wold-style-definition -Wtype-limits"
1989 gcc_flags="-Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers $gcc_flags"
1990 gcc_flags="-Wno-missing-include-dirs -Wempty-body -Wnested-externs $gcc_flags"
1991 gcc_flags="-Wendif-labels -Wno-shift-negative-value $gcc_flags"
1992 gcc_flags="-Wno-initializer-overrides -Wexpansion-to-defined $gcc_flags"
1993 gcc_flags="-Wno-string-plus-int -Wno-typedef-redefinition $gcc_flags"
1994 # Note that we do not add -Werror to gcc_flags here, because that would
1995 # enable it for all configure tests. If a configure test failed due
1996 # to -Werror this would just silently disable some features,
1997 # so it's too error prone.
1998
1999 cc_has_warning_flag() {
2000     write_c_skeleton;
2001
2002     # Use the positive sense of the flag when testing for -Wno-wombat
2003     # support (gcc will happily accept the -Wno- form of unknown
2004     # warning options).
2005     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2006     compile_prog "-Werror $optflag" ""
2007 }
2008
2009 for flag in $gcc_flags; do
2010     if cc_has_warning_flag $flag ; then
2011         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2012     fi
2013 done
2014
2015 if test "$stack_protector" != "no"; then
2016   cat > $TMPC << EOF
2017 int main(int argc, char *argv[])
2018 {
2019     char arr[64], *p = arr, *c = argv[0];
2020     while (*c) {
2021         *p++ = *c++;
2022     }
2023     return 0;
2024 }
2025 EOF
2026   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2027   sp_on=0
2028   for flag in $gcc_flags; do
2029     # We need to check both a compile and a link, since some compiler
2030     # setups fail only on a .c->.o compile and some only at link time
2031     if do_cc $QEMU_CFLAGS -Werror $flag -c -o $TMPO $TMPC &&
2032        compile_prog "-Werror $flag" ""; then
2033       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2034       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2035       sp_on=1
2036       break
2037     fi
2038   done
2039   if test "$stack_protector" = yes; then
2040     if test $sp_on = 0; then
2041       error_exit "Stack protector not supported"
2042     fi
2043   fi
2044 fi
2045
2046 # Disable -Wmissing-braces on older compilers that warn even for
2047 # the "universal" C zero initializer {0}.
2048 cat > $TMPC << EOF
2049 struct {
2050   int a[2];
2051 } x = {0};
2052 EOF
2053 if compile_object "-Werror" "" ; then
2054   :
2055 else
2056   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2057 fi
2058
2059 # Our module code doesn't support Windows
2060 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2061   error_exit "Modules are not available for Windows"
2062 fi
2063
2064 # module_upgrades is only reasonable if modules are enabled
2065 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2066   error_exit "Can't enable module-upgrades as Modules are not enabled"
2067 fi
2068
2069 # Static linking is not possible with modules or PIE
2070 if test "$static" = "yes" ; then
2071   if test "$modules" = "yes" ; then
2072     error_exit "static and modules are mutually incompatible"
2073   fi
2074   if test "$pie" = "yes" ; then
2075     error_exit "static and pie are mutually incompatible"
2076   else
2077     pie="no"
2078   fi
2079 fi
2080
2081 # Unconditional check for compiler __thread support
2082   cat > $TMPC << EOF
2083 static __thread int tls_var;
2084 int main(void) { return tls_var; }
2085 EOF
2086
2087 if ! compile_prog "-Werror" "" ; then
2088     error_exit "Your compiler does not support the __thread specifier for " \
2089         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2090 fi
2091
2092 if test "$pie" = ""; then
2093   case "$cpu-$targetos" in
2094     i386-Linux|x86_64-Linux|x32-Linux|i386-OpenBSD|x86_64-OpenBSD)
2095       ;;
2096     *)
2097       pie="no"
2098       ;;
2099   esac
2100 fi
2101
2102 if test "$pie" != "no" ; then
2103   cat > $TMPC << EOF
2104
2105 #ifdef __linux__
2106 #  define THREAD __thread
2107 #else
2108 #  define THREAD
2109 #endif
2110
2111 static THREAD int tls_var;
2112
2113 int main(void) { return tls_var; }
2114
2115 EOF
2116   # check we support --no-pie first...
2117   if compile_prog "-Werror -fno-pie" "-no-pie"; then
2118     CFLAGS_NOPIE="-fno-pie"
2119     LDFLAGS_NOPIE="-nopie"
2120   fi
2121
2122   if compile_prog "-fPIE -DPIE" "-pie"; then
2123     QEMU_CFLAGS="-fPIE -DPIE $QEMU_CFLAGS"
2124     QEMU_LDFLAGS="-pie $QEMU_LDFLAGS"
2125     pie="yes"
2126     if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2127       QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2128     fi
2129   else
2130     if test "$pie" = "yes"; then
2131       error_exit "PIE not available due to missing toolchain support"
2132     else
2133       echo "Disabling PIE due to missing toolchain support"
2134       pie="no"
2135     fi
2136   fi
2137 fi
2138
2139 ##########################################
2140 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2141 # use i686 as default anyway, but for those that don't, an explicit
2142 # specification is necessary
2143
2144 if test "$cpu" = "i386"; then
2145   cat > $TMPC << EOF
2146 static int sfaa(int *ptr)
2147 {
2148   return __sync_fetch_and_and(ptr, 0);
2149 }
2150
2151 int main(void)
2152 {
2153   int val = 42;
2154   val = __sync_val_compare_and_swap(&val, 0, 1);
2155   sfaa(&val);
2156   return val;
2157 }
2158 EOF
2159   if ! compile_prog "" "" ; then
2160     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2161   fi
2162 fi
2163
2164 #########################################
2165 # Solaris specific configure tool chain decisions
2166
2167 if test "$solaris" = "yes" ; then
2168   if has $install; then
2169     :
2170   else
2171     error_exit "Solaris install program not found. Use --install=/usr/ucb/install or" \
2172         "install fileutils from www.blastwave.org using pkg-get -i fileutils" \
2173         "to get ginstall which is used by default (which lives in /opt/csw/bin)"
2174   fi
2175   if test "$(path_of $install)" = "/usr/sbin/install" ; then
2176     error_exit "Solaris /usr/sbin/install is not an appropriate install program." \
2177         "try ginstall from the GNU fileutils available from www.blastwave.org" \
2178         "using pkg-get -i fileutils, or use --install=/usr/ucb/install"
2179   fi
2180   if has ar; then
2181     :
2182   else
2183     if test -f /usr/ccs/bin/ar ; then
2184       error_exit "No path includes ar" \
2185           "Add /usr/ccs/bin to your path and rerun configure"
2186     fi
2187     error_exit "No path includes ar"
2188   fi
2189 fi
2190
2191 if test -z "${target_list+xxx}" ; then
2192     for target in $default_target_list; do
2193         supported_target $target 2>/dev/null && \
2194             target_list="$target_list $target"
2195     done
2196     target_list="${target_list# }"
2197 else
2198     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2199     for target in $target_list; do
2200         # Check that we recognised the target name; this allows a more
2201         # friendly error message than if we let it fall through.
2202         case " $default_target_list " in
2203             *" $target "*)
2204                 ;;
2205             *)
2206                 error_exit "Unknown target name '$target'"
2207                 ;;
2208         esac
2209         supported_target $target || exit 1
2210     done
2211 fi
2212
2213 # see if system emulation was really requested
2214 case " $target_list " in
2215   *"-softmmu "*) softmmu=yes
2216   ;;
2217   *) softmmu=no
2218   ;;
2219 esac
2220
2221 for target in $target_list; do
2222   case "$target" in
2223     arm-softmmu | aarch64-softmmu | i386-softmmu | x86_64-softmmu)
2224       edk2_blobs="yes"
2225       ;;
2226   esac
2227 done
2228 # The EDK2 binaries are compressed with bzip2
2229 if test "$edk2_blobs" = "yes" && ! has bzip2; then
2230   error_exit "The bzip2 program is required for building QEMU"
2231 fi
2232
2233 feature_not_found() {
2234   feature=$1
2235   remedy=$2
2236
2237   error_exit "User requested feature $feature" \
2238       "configure was not able to find it." \
2239       "$remedy"
2240 }
2241
2242 # ---
2243 # big/little endian test
2244 cat > $TMPC << EOF
2245 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2246 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2247 extern int foo(short *, short *);
2248 int main(int argc, char *argv[]) {
2249     return foo(big_endian, little_endian);
2250 }
2251 EOF
2252
2253 if compile_object ; then
2254     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2255         bigendian="yes"
2256     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2257         bigendian="no"
2258     else
2259         echo big/little test failed
2260     fi
2261 else
2262     echo big/little test failed
2263 fi
2264
2265 ##########################################
2266 # system tools
2267 if test -z "$want_tools"; then
2268     if test "$softmmu" = "no"; then
2269         want_tools=no
2270     else
2271         want_tools=yes
2272     fi
2273 fi
2274
2275 ##########################################
2276 # cocoa implies not SDL or GTK
2277 # (the cocoa UI code currently assumes it is always the active UI
2278 # and doesn't interact well with other UI frontend code)
2279 if test "$cocoa" = "yes"; then
2280     if test "$sdl" = "yes"; then
2281         error_exit "Cocoa and SDL UIs cannot both be enabled at once"
2282     fi
2283     if test "$gtk" = "yes"; then
2284         error_exit "Cocoa and GTK UIs cannot both be enabled at once"
2285     fi
2286     gtk=no
2287     sdl=no
2288 fi
2289
2290 # Some versions of Mac OS X incorrectly define SIZE_MAX
2291 cat > $TMPC << EOF
2292 #include <stdint.h>
2293 #include <stdio.h>
2294 int main(int argc, char *argv[]) {
2295     return printf("%zu", SIZE_MAX);
2296 }
2297 EOF
2298 have_broken_size_max=no
2299 if ! compile_object -Werror ; then
2300     have_broken_size_max=yes
2301 fi
2302
2303 ##########################################
2304 # L2TPV3 probe
2305
2306 cat > $TMPC <<EOF
2307 #include <sys/socket.h>
2308 #include <linux/ip.h>
2309 int main(void) { return sizeof(struct mmsghdr); }
2310 EOF
2311 if compile_prog "" "" ; then
2312   l2tpv3=yes
2313 else
2314   l2tpv3=no
2315 fi
2316
2317 #########################################
2318 # vhost interdependencies and host support
2319
2320 # vhost backends
2321 test "$vhost_user" = "" && vhost_user=yes
2322 if test "$vhost_user" = "yes" && test "$mingw32" = "yes"; then
2323   error_exit "vhost-user isn't available on win32"
2324 fi
2325 test "$vhost_kernel" = "" && vhost_kernel=$linux
2326 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2327   error_exit "vhost-kernel is only available on Linux"
2328 fi
2329
2330 # vhost-kernel devices
2331 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2332 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2333   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2334 fi
2335 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2336 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2337   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2338 fi
2339
2340 # vhost-user backends
2341 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2342 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2343   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2344 fi
2345 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2346 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2347   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2348 fi
2349 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2350 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2351   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2352 fi
2353
2354 # OR the vhost-kernel and vhost-user values for simplicity
2355 if test "$vhost_net" = ""; then
2356   test "$vhost_net_user" = "yes" && vhost_net=yes
2357   test "$vhost_kernel" = "yes" && vhost_net=yes
2358 fi
2359
2360 ##########################################
2361 # MinGW / Mingw-w64 localtime_r/gmtime_r check
2362
2363 if test "$mingw32" = "yes"; then
2364     # Some versions of MinGW / Mingw-w64 lack localtime_r
2365     # and gmtime_r entirely.
2366     #
2367     # Some versions of Mingw-w64 define a macro for
2368     # localtime_r/gmtime_r.
2369     #
2370     # Some versions of Mingw-w64 will define functions
2371     # for localtime_r/gmtime_r, but only if you have
2372     # _POSIX_THREAD_SAFE_FUNCTIONS defined. For fun
2373     # though, unistd.h and pthread.h both define
2374     # that for you.
2375     #
2376     # So this #undef localtime_r and #include <unistd.h>
2377     # are not in fact redundant.
2378 cat > $TMPC << EOF
2379 #include <unistd.h>
2380 #include <time.h>
2381 #undef localtime_r
2382 int main(void) { localtime_r(NULL, NULL); return 0; }
2383 EOF
2384     if compile_prog "" "" ; then
2385         localtime_r="yes"
2386     else
2387         localtime_r="no"
2388     fi
2389 fi
2390
2391 ##########################################
2392 # pkg-config probe
2393
2394 if ! has "$pkg_config_exe"; then
2395   error_exit "pkg-config binary '$pkg_config_exe' not found"
2396 fi
2397
2398 ##########################################
2399 # NPTL probe
2400
2401 if test "$linux_user" = "yes"; then
2402   cat > $TMPC <<EOF
2403 #include <sched.h>
2404 #include <linux/futex.h>
2405 int main(void) {
2406 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2407 #error bork
2408 #endif
2409   return 0;
2410 }
2411 EOF
2412   if ! compile_object ; then
2413     feature_not_found "nptl" "Install glibc and linux kernel headers."
2414   fi
2415 fi
2416
2417 ##########################################
2418 # lzo check
2419
2420 if test "$lzo" != "no" ; then
2421     cat > $TMPC << EOF
2422 #include <lzo/lzo1x.h>
2423 int main(void) { lzo_version(); return 0; }
2424 EOF
2425     if compile_prog "" "-llzo2" ; then
2426         libs_softmmu="$libs_softmmu -llzo2"
2427         lzo="yes"
2428     else
2429         if test "$lzo" = "yes"; then
2430             feature_not_found "liblzo2" "Install liblzo2 devel"
2431         fi
2432         lzo="no"
2433     fi
2434 fi
2435
2436 ##########################################
2437 # snappy check
2438
2439 if test "$snappy" != "no" ; then
2440     cat > $TMPC << EOF
2441 #include <snappy-c.h>
2442 int main(void) { snappy_max_compressed_length(4096); return 0; }
2443 EOF
2444     if compile_prog "" "-lsnappy" ; then
2445         libs_softmmu="$libs_softmmu -lsnappy"
2446         snappy="yes"
2447     else
2448         if test "$snappy" = "yes"; then
2449             feature_not_found "libsnappy" "Install libsnappy devel"
2450         fi
2451         snappy="no"
2452     fi
2453 fi
2454
2455 ##########################################
2456 # bzip2 check
2457
2458 if test "$bzip2" != "no" ; then
2459     cat > $TMPC << EOF
2460 #include <bzlib.h>
2461 int main(void) { BZ2_bzlibVersion(); return 0; }
2462 EOF
2463     if compile_prog "" "-lbz2" ; then
2464         bzip2="yes"
2465     else
2466         if test "$bzip2" = "yes"; then
2467             feature_not_found "libbzip2" "Install libbzip2 devel"
2468         fi
2469         bzip2="no"
2470     fi
2471 fi
2472
2473 ##########################################
2474 # lzfse check
2475
2476 if test "$lzfse" != "no" ; then
2477     cat > $TMPC << EOF
2478 #include <lzfse.h>
2479 int main(void) { lzfse_decode_scratch_size(); return 0; }
2480 EOF
2481     if compile_prog "" "-llzfse" ; then
2482         lzfse="yes"
2483     else
2484         if test "$lzfse" = "yes"; then
2485             feature_not_found "lzfse" "Install lzfse devel"
2486         fi
2487         lzfse="no"
2488     fi
2489 fi
2490
2491 ##########################################
2492 # zstd check
2493
2494 if test "$zstd" != "no" ; then
2495     libzstd_minver="1.4.0"
2496     if $pkg_config --atleast-version=$libzstd_minver libzstd ; then
2497         zstd_cflags="$($pkg_config --cflags libzstd)"
2498         zstd_libs="$($pkg_config --libs libzstd)"
2499         LIBS="$zstd_libs $LIBS"
2500         QEMU_CFLAGS="$QEMU_CFLAGS $zstd_cflags"
2501         zstd="yes"
2502     else
2503         if test "$zstd" = "yes" ; then
2504             feature_not_found "libzstd" "Install libzstd devel"
2505         fi
2506         zstd="no"
2507     fi
2508 fi
2509
2510 ##########################################
2511 # libseccomp check
2512
2513 if test "$seccomp" != "no" ; then
2514     libseccomp_minver="2.3.0"
2515     if $pkg_config --atleast-version=$libseccomp_minver libseccomp ; then
2516         seccomp_cflags="$($pkg_config --cflags libseccomp)"
2517         seccomp_libs="$($pkg_config --libs libseccomp)"
2518         seccomp="yes"
2519     else
2520         if test "$seccomp" = "yes" ; then
2521             feature_not_found "libseccomp" \
2522                  "Install libseccomp devel >= $libseccomp_minver"
2523         fi
2524         seccomp="no"
2525     fi
2526 fi
2527 ##########################################
2528 # xen probe
2529
2530 if test "$xen" != "no" ; then
2531   # Check whether Xen library path is specified via --extra-ldflags to avoid
2532   # overriding this setting with pkg-config output. If not, try pkg-config
2533   # to obtain all needed flags.
2534
2535   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2536      $pkg_config --exists xencontrol ; then
2537     xen_ctrl_version="$(printf '%d%02d%02d' \
2538       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2539     xen=yes
2540     xen_pc="xencontrol xenstore xenguest xenforeignmemory xengnttab"
2541     xen_pc="$xen_pc xenevtchn xendevicemodel"
2542     if $pkg_config --exists xentoolcore; then
2543       xen_pc="$xen_pc xentoolcore"
2544     fi
2545     QEMU_CFLAGS="$QEMU_CFLAGS $($pkg_config --cflags $xen_pc)"
2546     libs_softmmu="$($pkg_config --libs $xen_pc) $libs_softmmu"
2547   else
2548
2549     xen_libs="-lxenstore -lxenctrl -lxenguest"
2550     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2551
2552     # First we test whether Xen headers and libraries are available.
2553     # If no, we are done and there is no Xen support.
2554     # If yes, more tests are run to detect the Xen version.
2555
2556     # Xen (any)
2557     cat > $TMPC <<EOF
2558 #include <xenctrl.h>
2559 int main(void) {
2560   return 0;
2561 }
2562 EOF
2563     if ! compile_prog "" "$xen_libs" ; then
2564       # Xen not found
2565       if test "$xen" = "yes" ; then
2566         feature_not_found "xen" "Install xen devel"
2567       fi
2568       xen=no
2569
2570     # Xen unstable
2571     elif
2572         cat > $TMPC <<EOF &&
2573 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2574 #define __XEN_TOOLS__
2575 #include <xendevicemodel.h>
2576 #include <xenforeignmemory.h>
2577 int main(void) {
2578   xendevicemodel_handle *xd;
2579   xenforeignmemory_handle *xfmem;
2580
2581   xd = xendevicemodel_open(0, 0);
2582   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2583
2584   xfmem = xenforeignmemory_open(0, 0);
2585   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2586
2587   return 0;
2588 }
2589 EOF
2590         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2591       then
2592       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2593       xen_ctrl_version=41100
2594       xen=yes
2595     elif
2596         cat > $TMPC <<EOF &&
2597 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2598 #include <xenforeignmemory.h>
2599 #include <xentoolcore.h>
2600 int main(void) {
2601   xenforeignmemory_handle *xfmem;
2602
2603   xfmem = xenforeignmemory_open(0, 0);
2604   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2605   xentoolcore_restrict_all(0);
2606
2607   return 0;
2608 }
2609 EOF
2610         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2611       then
2612       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2613       xen_ctrl_version=41000
2614       xen=yes
2615     elif
2616         cat > $TMPC <<EOF &&
2617 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2618 #define __XEN_TOOLS__
2619 #include <xendevicemodel.h>
2620 int main(void) {
2621   xendevicemodel_handle *xd;
2622
2623   xd = xendevicemodel_open(0, 0);
2624   xendevicemodel_close(xd);
2625
2626   return 0;
2627 }
2628 EOF
2629         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2630       then
2631       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2632       xen_ctrl_version=40900
2633       xen=yes
2634     elif
2635         cat > $TMPC <<EOF &&
2636 /*
2637  * If we have stable libs the we don't want the libxc compat
2638  * layers, regardless of what CFLAGS we may have been given.
2639  *
2640  * Also, check if xengnttab_grant_copy_segment_t is defined and
2641  * grant copy operation is implemented.
2642  */
2643 #undef XC_WANT_COMPAT_EVTCHN_API
2644 #undef XC_WANT_COMPAT_GNTTAB_API
2645 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2646 #include <xenctrl.h>
2647 #include <xenstore.h>
2648 #include <xenevtchn.h>
2649 #include <xengnttab.h>
2650 #include <xenforeignmemory.h>
2651 #include <stdint.h>
2652 #include <xen/hvm/hvm_info_table.h>
2653 #if !defined(HVM_MAX_VCPUS)
2654 # error HVM_MAX_VCPUS not defined
2655 #endif
2656 int main(void) {
2657   xc_interface *xc = NULL;
2658   xenforeignmemory_handle *xfmem;
2659   xenevtchn_handle *xe;
2660   xengnttab_handle *xg;
2661   xengnttab_grant_copy_segment_t* seg = NULL;
2662
2663   xs_daemon_open();
2664
2665   xc = xc_interface_open(0, 0, 0);
2666   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2667   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2668   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2669   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2670
2671   xfmem = xenforeignmemory_open(0, 0);
2672   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2673
2674   xe = xenevtchn_open(0, 0);
2675   xenevtchn_fd(xe);
2676
2677   xg = xengnttab_open(0, 0);
2678   xengnttab_grant_copy(xg, 0, seg);
2679
2680   return 0;
2681 }
2682 EOF
2683         compile_prog "" "$xen_libs $xen_stable_libs"
2684       then
2685       xen_ctrl_version=40800
2686       xen=yes
2687     elif
2688         cat > $TMPC <<EOF &&
2689 /*
2690  * If we have stable libs the we don't want the libxc compat
2691  * layers, regardless of what CFLAGS we may have been given.
2692  */
2693 #undef XC_WANT_COMPAT_EVTCHN_API
2694 #undef XC_WANT_COMPAT_GNTTAB_API
2695 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2696 #include <xenctrl.h>
2697 #include <xenstore.h>
2698 #include <xenevtchn.h>
2699 #include <xengnttab.h>
2700 #include <xenforeignmemory.h>
2701 #include <stdint.h>
2702 #include <xen/hvm/hvm_info_table.h>
2703 #if !defined(HVM_MAX_VCPUS)
2704 # error HVM_MAX_VCPUS not defined
2705 #endif
2706 int main(void) {
2707   xc_interface *xc = NULL;
2708   xenforeignmemory_handle *xfmem;
2709   xenevtchn_handle *xe;
2710   xengnttab_handle *xg;
2711
2712   xs_daemon_open();
2713
2714   xc = xc_interface_open(0, 0, 0);
2715   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2716   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2717   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2718   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2719
2720   xfmem = xenforeignmemory_open(0, 0);
2721   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2722
2723   xe = xenevtchn_open(0, 0);
2724   xenevtchn_fd(xe);
2725
2726   xg = xengnttab_open(0, 0);
2727   xengnttab_map_grant_ref(xg, 0, 0, 0);
2728
2729   return 0;
2730 }
2731 EOF
2732         compile_prog "" "$xen_libs $xen_stable_libs"
2733       then
2734       xen_ctrl_version=40701
2735       xen=yes
2736
2737     # Xen 4.6
2738     elif
2739         cat > $TMPC <<EOF &&
2740 #include <xenctrl.h>
2741 #include <xenstore.h>
2742 #include <stdint.h>
2743 #include <xen/hvm/hvm_info_table.h>
2744 #if !defined(HVM_MAX_VCPUS)
2745 # error HVM_MAX_VCPUS not defined
2746 #endif
2747 int main(void) {
2748   xc_interface *xc;
2749   xs_daemon_open();
2750   xc = xc_interface_open(0, 0, 0);
2751   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2752   xc_gnttab_open(NULL, 0);
2753   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2754   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2755   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2756   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2757   return 0;
2758 }
2759 EOF
2760         compile_prog "" "$xen_libs"
2761       then
2762       xen_ctrl_version=40600
2763       xen=yes
2764
2765     # Xen 4.5
2766     elif
2767         cat > $TMPC <<EOF &&
2768 #include <xenctrl.h>
2769 #include <xenstore.h>
2770 #include <stdint.h>
2771 #include <xen/hvm/hvm_info_table.h>
2772 #if !defined(HVM_MAX_VCPUS)
2773 # error HVM_MAX_VCPUS not defined
2774 #endif
2775 int main(void) {
2776   xc_interface *xc;
2777   xs_daemon_open();
2778   xc = xc_interface_open(0, 0, 0);
2779   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2780   xc_gnttab_open(NULL, 0);
2781   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2782   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2783   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2784   return 0;
2785 }
2786 EOF
2787         compile_prog "" "$xen_libs"
2788       then
2789       xen_ctrl_version=40500
2790       xen=yes
2791
2792     elif
2793         cat > $TMPC <<EOF &&
2794 #include <xenctrl.h>
2795 #include <xenstore.h>
2796 #include <stdint.h>
2797 #include <xen/hvm/hvm_info_table.h>
2798 #if !defined(HVM_MAX_VCPUS)
2799 # error HVM_MAX_VCPUS not defined
2800 #endif
2801 int main(void) {
2802   xc_interface *xc;
2803   xs_daemon_open();
2804   xc = xc_interface_open(0, 0, 0);
2805   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2806   xc_gnttab_open(NULL, 0);
2807   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2808   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2809   return 0;
2810 }
2811 EOF
2812         compile_prog "" "$xen_libs"
2813       then
2814       xen_ctrl_version=40200
2815       xen=yes
2816
2817     else
2818       if test "$xen" = "yes" ; then
2819         feature_not_found "xen (unsupported version)" \
2820                           "Install a supported xen (xen 4.2 or newer)"
2821       fi
2822       xen=no
2823     fi
2824
2825     if test "$xen" = yes; then
2826       if test $xen_ctrl_version -ge 40701  ; then
2827         libs_softmmu="$xen_stable_libs $libs_softmmu"
2828       fi
2829       libs_softmmu="$xen_libs $libs_softmmu"
2830     fi
2831   fi
2832 fi
2833
2834 if test "$xen_pci_passthrough" != "no"; then
2835   if test "$xen" = "yes" && test "$linux" = "yes"; then
2836     xen_pci_passthrough=yes
2837   else
2838     if test "$xen_pci_passthrough" = "yes"; then
2839       error_exit "User requested feature Xen PCI Passthrough" \
2840           " but this feature requires /sys from Linux"
2841     fi
2842     xen_pci_passthrough=no
2843   fi
2844 fi
2845
2846 ##########################################
2847 # Windows Hypervisor Platform accelerator (WHPX) check
2848 if test "$whpx" != "no" ; then
2849     if check_include "WinHvPlatform.h" && check_include "WinHvEmulation.h"; then
2850         whpx="yes"
2851     else
2852         if test "$whpx" = "yes"; then
2853             feature_not_found "WinHvPlatform" "WinHvEmulation is not installed"
2854         fi
2855         whpx="no"
2856     fi
2857 fi
2858
2859 ##########################################
2860 # Sparse probe
2861 if test "$sparse" != "no" ; then
2862   if has cgcc; then
2863     sparse=yes
2864   else
2865     if test "$sparse" = "yes" ; then
2866       feature_not_found "sparse" "Install sparse binary"
2867     fi
2868     sparse=no
2869   fi
2870 fi
2871
2872 ##########################################
2873 # X11 probe
2874 if $pkg_config --exists "x11"; then
2875     have_x11=yes
2876     x11_cflags=$($pkg_config --cflags x11)
2877     x11_libs=$($pkg_config --libs x11)
2878 fi
2879
2880 ##########################################
2881 # GTK probe
2882
2883 if test "$gtk" != "no"; then
2884     gtkpackage="gtk+-3.0"
2885     gtkx11package="gtk+-x11-3.0"
2886     gtkversion="3.14.0"
2887     if $pkg_config --exists "$gtkpackage >= $gtkversion"; then
2888         gtk_cflags=$($pkg_config --cflags $gtkpackage)
2889         gtk_libs=$($pkg_config --libs $gtkpackage)
2890         gtk_version=$($pkg_config --modversion $gtkpackage)
2891         if $pkg_config --exists "$gtkx11package >= $gtkversion"; then
2892             need_x11=yes
2893             gtk_cflags="$gtk_cflags $x11_cflags"
2894             gtk_libs="$gtk_libs $x11_libs"
2895         fi
2896         gtk="yes"
2897     elif test "$gtk" = "yes"; then
2898         feature_not_found "gtk" "Install gtk3-devel"
2899     else
2900         gtk="no"
2901     fi
2902 fi
2903
2904
2905 ##########################################
2906 # GNUTLS probe
2907
2908 if test "$gnutls" != "no"; then
2909     pass="no"
2910     if $pkg_config --exists "gnutls >= 3.1.18"; then
2911         gnutls_cflags=$($pkg_config --cflags gnutls)
2912         gnutls_libs=$($pkg_config --libs gnutls)
2913         # Packaging for the static libraries is not always correct.
2914         # At least ubuntu 18.04 ships only shared libraries.
2915         write_c_skeleton
2916         if compile_prog "" "$gnutls_libs" ; then
2917             LIBS="$gnutls_libs $LIBS"
2918             QEMU_CFLAGS="$QEMU_CFLAGS $gnutls_cflags"
2919             pass="yes"
2920         fi
2921     fi
2922     if test "$pass" = "no" && test "$gnutls" = "yes"; then
2923         feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
2924     else
2925         gnutls="$pass"
2926     fi
2927 fi
2928
2929
2930 # If user didn't give a --disable/enable-gcrypt flag,
2931 # then mark as disabled if user requested nettle
2932 # explicitly
2933 if test -z "$gcrypt"
2934 then
2935     if test "$nettle" = "yes"
2936     then
2937         gcrypt="no"
2938     fi
2939 fi
2940
2941 # If user didn't give a --disable/enable-nettle flag,
2942 # then mark as disabled if user requested gcrypt
2943 # explicitly
2944 if test -z "$nettle"
2945 then
2946     if test "$gcrypt" = "yes"
2947     then
2948         nettle="no"
2949     fi
2950 fi
2951
2952 has_libgcrypt() {
2953     if ! has "libgcrypt-config"
2954     then
2955         return 1
2956     fi
2957
2958     if test -n "$cross_prefix"
2959     then
2960         host=$(libgcrypt-config --host)
2961         if test "$host-" != $cross_prefix
2962         then
2963             return 1
2964         fi
2965     fi
2966
2967     maj=`libgcrypt-config --version | awk -F . '{print $1}'`
2968     min=`libgcrypt-config --version | awk -F . '{print $2}'`
2969
2970     if test $maj != 1 || test $min -lt 5
2971     then
2972        return 1
2973     fi
2974
2975     return 0
2976 }
2977
2978
2979 if test "$nettle" != "no"; then
2980     pass="no"
2981     if $pkg_config --exists "nettle >= 2.7.1"; then
2982         nettle_cflags=$($pkg_config --cflags nettle)
2983         nettle_libs=$($pkg_config --libs nettle)
2984         nettle_version=$($pkg_config --modversion nettle)
2985         # Link test to make sure the given libraries work (e.g for static).
2986         write_c_skeleton
2987         if compile_prog "" "$nettle_libs" ; then
2988             LIBS="$nettle_libs $LIBS"
2989             QEMU_CFLAGS="$QEMU_CFLAGS $nettle_cflags"
2990             if test -z "$gcrypt"; then
2991                gcrypt="no"
2992             fi
2993             pass="yes"
2994         fi
2995     fi
2996     if test "$pass" = "yes"
2997     then
2998         cat > $TMPC << EOF
2999 #include <nettle/xts.h>
3000 int main(void) {
3001   return 0;
3002 }
3003 EOF
3004         if compile_prog "$nettle_cflags" "$nettle_libs" ; then
3005             nettle_xts=yes
3006             qemu_private_xts=no
3007         fi
3008     fi
3009     if test "$pass" = "no" && test "$nettle" = "yes"; then
3010         feature_not_found "nettle" "Install nettle devel >= 2.7.1"
3011     else
3012         nettle="$pass"
3013     fi
3014 fi
3015
3016 if test "$gcrypt" != "no"; then
3017     pass="no"
3018     if has_libgcrypt; then
3019         gcrypt_cflags=$(libgcrypt-config --cflags)
3020         gcrypt_libs=$(libgcrypt-config --libs)
3021         # Debian has removed -lgpg-error from libgcrypt-config
3022         # as it "spreads unnecessary dependencies" which in
3023         # turn breaks static builds...
3024         if test "$static" = "yes"
3025         then
3026             gcrypt_libs="$gcrypt_libs -lgpg-error"
3027         fi
3028
3029         # Link test to make sure the given libraries work (e.g for static).
3030         write_c_skeleton
3031         if compile_prog "" "$gcrypt_libs" ; then
3032             LIBS="$gcrypt_libs $LIBS"
3033             QEMU_CFLAGS="$QEMU_CFLAGS $gcrypt_cflags"
3034             pass="yes"
3035         fi
3036     fi
3037     if test "$pass" = "yes"; then
3038         gcrypt="yes"
3039         cat > $TMPC << EOF
3040 #include <gcrypt.h>
3041 int main(void) {
3042   gcry_mac_hd_t handle;
3043   gcry_mac_open(&handle, GCRY_MAC_HMAC_MD5,
3044                 GCRY_MAC_FLAG_SECURE, NULL);
3045   return 0;
3046 }
3047 EOF
3048         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3049             gcrypt_hmac=yes
3050         fi
3051         cat > $TMPC << EOF
3052 #include <gcrypt.h>
3053 int main(void) {
3054   gcry_cipher_hd_t handle;
3055   gcry_cipher_open(&handle, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_XTS, 0);
3056   return 0;
3057 }
3058 EOF
3059         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3060             gcrypt_xts=yes
3061             qemu_private_xts=no
3062         fi
3063     elif test "$gcrypt" = "yes"; then
3064         feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
3065     else
3066         gcrypt="no"
3067     fi
3068 fi
3069
3070
3071 if test "$gcrypt" = "yes" && test "$nettle" = "yes"
3072 then
3073     error_exit "Only one of gcrypt & nettle can be enabled"
3074 fi
3075
3076 ##########################################
3077 # libtasn1 - only for the TLS creds/session test suite
3078
3079 tasn1=yes
3080 tasn1_cflags=""
3081 tasn1_libs=""
3082 if $pkg_config --exists "libtasn1"; then
3083     tasn1_cflags=$($pkg_config --cflags libtasn1)
3084     tasn1_libs=$($pkg_config --libs libtasn1)
3085 else
3086     tasn1=no
3087 fi
3088
3089
3090 ##########################################
3091 # PAM probe
3092
3093 if test "$auth_pam" != "no"; then
3094     cat > $TMPC <<EOF
3095 #include <security/pam_appl.h>
3096 #include <stdio.h>
3097 int main(void) {
3098    const char *service_name = "qemu";
3099    const char *user = "frank";
3100    const struct pam_conv pam_conv = { 0 };
3101    pam_handle_t *pamh = NULL;
3102    pam_start(service_name, user, &pam_conv, &pamh);
3103    return 0;
3104 }
3105 EOF
3106     if compile_prog "" "-lpam" ; then
3107         auth_pam=yes
3108     else
3109         if test "$auth_pam" = "yes"; then
3110             feature_not_found "PAM" "Install PAM development package"
3111         else
3112             auth_pam=no
3113         fi
3114     fi
3115 fi
3116
3117 ##########################################
3118 # getifaddrs (for tests/test-io-channel-socket )
3119
3120 have_ifaddrs_h=yes
3121 if ! check_include "ifaddrs.h" ; then
3122   have_ifaddrs_h=no
3123 fi
3124
3125 ##########################################
3126 # VTE probe
3127
3128 if test "$vte" != "no"; then
3129     vteminversion="0.32.0"
3130     if $pkg_config --exists "vte-2.91"; then
3131       vtepackage="vte-2.91"
3132     else
3133       vtepackage="vte-2.90"
3134     fi
3135     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
3136         vte_cflags=$($pkg_config --cflags $vtepackage)
3137         vte_libs=$($pkg_config --libs $vtepackage)
3138         vteversion=$($pkg_config --modversion $vtepackage)
3139         vte="yes"
3140     elif test "$vte" = "yes"; then
3141         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
3142     else
3143         vte="no"
3144     fi
3145 fi
3146
3147 ##########################################
3148 # SDL probe
3149
3150 # Look for sdl configuration program (pkg-config or sdl2-config).  Try
3151 # sdl2-config even without cross prefix, and favour pkg-config over sdl2-config.
3152
3153 sdl_probe ()
3154 {
3155   if $pkg_config sdl2 --exists; then
3156     sdlconfig="$pkg_config sdl2"
3157     sdlversion=$($sdlconfig --modversion 2>/dev/null)
3158   elif has "$sdl2_config"; then
3159     sdlconfig="$sdl2_config"
3160     sdlversion=$($sdlconfig --version)
3161   else
3162     if test "$sdl" = "yes" ; then
3163       feature_not_found "sdl" "Install SDL2-devel"
3164     fi
3165     sdl=no
3166     # no need to do the rest
3167     return
3168   fi
3169   if test -n "$cross_prefix" && test "$(basename "$sdlconfig")" = sdl2-config; then
3170     echo warning: using "\"$sdlconfig\"" to detect cross-compiled sdl >&2
3171   fi
3172
3173   cat > $TMPC << EOF
3174 #include <SDL.h>
3175 #undef main /* We don't want SDL to override our main() */
3176 int main( void ) { return SDL_Init (SDL_INIT_VIDEO); }
3177 EOF
3178   sdl_cflags=$($sdlconfig --cflags 2>/dev/null)
3179   sdl_cflags="$sdl_cflags -Wno-undef"  # workaround 2.0.8 bug
3180   if test "$static" = "yes" ; then
3181     if $pkg_config sdl2 --exists; then
3182       sdl_libs=$($pkg_config sdl2 --static --libs 2>/dev/null)
3183     else
3184       sdl_libs=$($sdlconfig --static-libs 2>/dev/null)
3185     fi
3186   else
3187     sdl_libs=$($sdlconfig --libs 2>/dev/null)
3188   fi
3189   if compile_prog "$sdl_cflags" "$sdl_libs" ; then
3190     sdl=yes
3191
3192     # static link with sdl ? (note: sdl.pc's --static --libs is broken)
3193     if test "$sdl" = "yes" && test "$static" = "yes" ; then
3194       if test $? = 0 && echo $sdl_libs | grep -- -laa > /dev/null; then
3195          sdl_libs="$sdl_libs $(aalib-config --static-libs 2>/dev/null)"
3196          sdl_cflags="$sdl_cflags $(aalib-config --cflags 2>/dev/null)"
3197       fi
3198       if compile_prog "$sdl_cflags" "$sdl_libs" ; then
3199         :
3200       else
3201         sdl=no
3202       fi
3203     fi # static link
3204   else # sdl not found
3205     if test "$sdl" = "yes" ; then
3206       feature_not_found "sdl" "Install SDL2 devel"
3207     fi
3208     sdl=no
3209   fi # sdl compile test
3210 }
3211
3212 sdl_image_probe ()
3213 {
3214     if test "$sdl_image" != "no" ; then
3215         if $pkg_config SDL2_image --exists; then
3216             if test "$static" = "yes"; then
3217                 sdl_image_libs=$($pkg_config SDL2_image --libs --static 2>/dev/null)
3218             else
3219                 sdl_image_libs=$($pkg_config SDL2_image --libs 2>/dev/null)
3220             fi
3221             sdl_image_cflags=$($pkg_config SDL2_image --cflags 2>/dev/null)
3222             sdl_image=yes
3223
3224             sdl_cflags="$sdl_cflags $sdl_image_cflags"
3225             sdl_libs="$sdl_libs $sdl_image_libs"
3226         else
3227             if test "$sdl_image" = "yes" ; then
3228                 feature_not_found "sdl_image" "Install SDL Image devel"
3229             else
3230                 sdl_image=no
3231             fi
3232         fi
3233     fi
3234 }
3235
3236 if test "$sdl" != "no" ; then
3237   sdl_probe
3238 fi
3239
3240 if test "$sdl" = "yes" ; then
3241   sdl_image_probe
3242 else
3243   if test "$sdl_image" = "yes"; then
3244     echo "warning: SDL Image requested, but SDL is not available, disabling"
3245   fi
3246   sdl_image=no
3247 fi
3248
3249 if test "$sdl" = "yes" ; then
3250   cat > $TMPC <<EOF
3251 #include <SDL.h>
3252 #if defined(SDL_VIDEO_DRIVER_X11)
3253 #include <X11/XKBlib.h>
3254 #else
3255 #error No x11 support
3256 #endif
3257 int main(void) { return 0; }
3258 EOF
3259   if compile_prog "$sdl_cflags $x11_cflags" "$sdl_libs $x11_libs" ; then
3260     need_x11=yes
3261     sdl_cflags="$sdl_cflags $x11_cflags"
3262     sdl_libs="$sdl_libs $x11_libs"
3263   fi
3264 fi
3265
3266 ##########################################
3267 # RDMA needs OpenFabrics libraries
3268 if test "$rdma" != "no" ; then
3269   cat > $TMPC <<EOF
3270 #include <rdma/rdma_cma.h>
3271 int main(void) { return 0; }
3272 EOF
3273   rdma_libs="-lrdmacm -libverbs -libumad"
3274   if compile_prog "" "$rdma_libs" ; then
3275     rdma="yes"
3276     libs_softmmu="$libs_softmmu $rdma_libs"
3277   else
3278     if test "$rdma" = "yes" ; then
3279         error_exit \
3280             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
3281             " Your options:" \
3282             "  (1) Fast: Install infiniband packages (devel) from your distro." \
3283             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
3284             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
3285     fi
3286     rdma="no"
3287   fi
3288 fi
3289
3290 ##########################################
3291 # PVRDMA detection
3292
3293 cat > $TMPC <<EOF &&
3294 #include <sys/mman.h>
3295
3296 int
3297 main(void)
3298 {
3299     char buf = 0;
3300     void *addr = &buf;
3301     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3302
3303     return 0;
3304 }
3305 EOF
3306
3307 if test "$rdma" = "yes" ; then
3308     case "$pvrdma" in
3309     "")
3310         if compile_prog "" ""; then
3311             pvrdma="yes"
3312         else
3313             pvrdma="no"
3314         fi
3315         ;;
3316     "yes")
3317         if ! compile_prog "" ""; then
3318             error_exit "PVRDMA is not supported since mremap is not implemented"
3319         fi
3320         pvrdma="yes"
3321         ;;
3322     "no")
3323         pvrdma="no"
3324         ;;
3325     esac
3326 else
3327     if test "$pvrdma" = "yes" ; then
3328         error_exit "PVRDMA requires rdma suppport"
3329     fi
3330     pvrdma="no"
3331 fi
3332
3333 # Let's see if enhanced reg_mr is supported
3334 if test "$pvrdma" = "yes" ; then
3335
3336 cat > $TMPC <<EOF &&
3337 #include <infiniband/verbs.h>
3338
3339 int
3340 main(void)
3341 {
3342     struct ibv_mr *mr;
3343     struct ibv_pd *pd = NULL;
3344     size_t length = 10;
3345     uint64_t iova = 0;
3346     int access = 0;
3347     void *addr = NULL;
3348
3349     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
3350
3351     ibv_dereg_mr(mr);
3352
3353     return 0;
3354 }
3355 EOF
3356     if ! compile_prog "" "-libverbs"; then
3357         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
3358     fi
3359 fi
3360
3361 ##########################################
3362 # VNC SASL detection
3363 if test "$vnc" = "yes" && test "$vnc_sasl" != "no" ; then
3364   cat > $TMPC <<EOF
3365 #include <sasl/sasl.h>
3366 #include <stdio.h>
3367 int main(void) { sasl_server_init(NULL, "qemu"); return 0; }
3368 EOF
3369   # Assuming Cyrus-SASL installed in /usr prefix
3370   vnc_sasl_cflags=""
3371   vnc_sasl_libs="-lsasl2"
3372   if compile_prog "$vnc_sasl_cflags" "$vnc_sasl_libs" ; then
3373     vnc_sasl=yes
3374     libs_softmmu="$vnc_sasl_libs $libs_softmmu"
3375     QEMU_CFLAGS="$QEMU_CFLAGS $vnc_sasl_cflags"
3376   else
3377     if test "$vnc_sasl" = "yes" ; then
3378       feature_not_found "vnc-sasl" "Install Cyrus SASL devel"
3379     fi
3380     vnc_sasl=no
3381   fi
3382 fi
3383
3384 ##########################################
3385 # VNC JPEG detection
3386 if test "$vnc" = "yes" && test "$vnc_jpeg" != "no" ; then
3387 cat > $TMPC <<EOF
3388 #include <stdio.h>
3389 #include <jpeglib.h>
3390 int main(void) { struct jpeg_compress_struct s; jpeg_create_compress(&s); return 0; }
3391 EOF
3392     vnc_jpeg_cflags=""
3393     vnc_jpeg_libs="-ljpeg"
3394   if compile_prog "$vnc_jpeg_cflags" "$vnc_jpeg_libs" ; then
3395     vnc_jpeg=yes
3396     libs_softmmu="$vnc_jpeg_libs $libs_softmmu"
3397     QEMU_CFLAGS="$QEMU_CFLAGS $vnc_jpeg_cflags"
3398   else
3399     if test "$vnc_jpeg" = "yes" ; then
3400       feature_not_found "vnc-jpeg" "Install libjpeg-turbo devel"
3401     fi
3402     vnc_jpeg=no
3403   fi
3404 fi
3405
3406 ##########################################
3407 # VNC PNG detection
3408 if test "$vnc" = "yes" && test "$vnc_png" != "no" ; then
3409 cat > $TMPC <<EOF
3410 //#include <stdio.h>
3411 #include <png.h>
3412 #include <stddef.h>
3413 int main(void) {
3414     png_structp png_ptr;
3415     png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
3416     return png_ptr != 0;
3417 }
3418 EOF
3419   if $pkg_config libpng --exists; then
3420     vnc_png_cflags=$($pkg_config libpng --cflags)
3421     vnc_png_libs=$($pkg_config libpng --libs)
3422   else
3423     vnc_png_cflags=""
3424     vnc_png_libs="-lpng"
3425   fi
3426   if compile_prog "$vnc_png_cflags" "$vnc_png_libs" ; then
3427     vnc_png=yes
3428     libs_softmmu="$vnc_png_libs $libs_softmmu"
3429     QEMU_CFLAGS="$QEMU_CFLAGS $vnc_png_cflags"
3430   else
3431     if test "$vnc_png" = "yes" ; then
3432       feature_not_found "vnc-png" "Install libpng devel"
3433     fi
3434     vnc_png=no
3435   fi
3436 fi
3437
3438 ##########################################
3439 # xkbcommon probe
3440 if test "$xkbcommon" != "no" ; then
3441   if $pkg_config xkbcommon --exists; then
3442     xkbcommon_cflags=$($pkg_config xkbcommon --cflags)
3443     xkbcommon_libs=$($pkg_config xkbcommon --libs)
3444     xkbcommon=yes
3445   else
3446     if test "$xkbcommon" = "yes" ; then
3447       feature_not_found "xkbcommon" "Install libxkbcommon-devel"
3448     fi
3449     xkbcommon=no
3450   fi
3451 fi
3452
3453
3454 ##########################################
3455 # xfsctl() probe, used for file-posix.c
3456 if test "$xfs" != "no" ; then
3457   cat > $TMPC << EOF
3458 #include <stddef.h>  /* NULL */
3459 #include <xfs/xfs.h>
3460 int main(void)
3461 {
3462     xfsctl(NULL, 0, 0, NULL);
3463     return 0;
3464 }
3465 EOF
3466   if compile_prog "" "" ; then
3467     xfs="yes"
3468   else
3469     if test "$xfs" = "yes" ; then
3470       feature_not_found "xfs" "Instal xfsprogs/xfslibs devel"
3471     fi
3472     xfs=no
3473   fi
3474 fi
3475
3476 ##########################################
3477 # vde libraries probe
3478 if test "$vde" != "no" ; then
3479   vde_libs="-lvdeplug"
3480   cat > $TMPC << EOF
3481 #include <libvdeplug.h>
3482 int main(void)
3483 {
3484     struct vde_open_args a = {0, 0, 0};
3485     char s[] = "";
3486     vde_open(s, s, &a);
3487     return 0;
3488 }
3489 EOF
3490   if compile_prog "" "$vde_libs" ; then
3491     vde=yes
3492   else
3493     if test "$vde" = "yes" ; then
3494       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3495     fi
3496     vde=no
3497   fi
3498 fi
3499
3500 ##########################################
3501 # netmap support probe
3502 # Apart from looking for netmap headers, we make sure that the host API version
3503 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3504 # a minor/major version number. Minor new features will be marked with values up
3505 # to 15, and if something happens that requires a change to the backend we will
3506 # move above 15, submit the backend fixes and modify this two bounds.
3507 if test "$netmap" != "no" ; then
3508   cat > $TMPC << EOF
3509 #include <inttypes.h>
3510 #include <net/if.h>
3511 #include <net/netmap.h>
3512 #include <net/netmap_user.h>
3513 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3514 #error
3515 #endif
3516 int main(void) { return 0; }
3517 EOF
3518   if compile_prog "" "" ; then
3519     netmap=yes
3520   else
3521     if test "$netmap" = "yes" ; then
3522       feature_not_found "netmap"
3523     fi
3524     netmap=no
3525   fi
3526 fi
3527
3528 ##########################################
3529 # libcap-ng library probe
3530 if test "$cap_ng" != "no" ; then
3531   cap_libs="-lcap-ng"
3532   cat > $TMPC << EOF
3533 #include <cap-ng.h>
3534 int main(void)
3535 {
3536     capng_capability_to_name(CAPNG_EFFECTIVE);
3537     return 0;
3538 }
3539 EOF
3540   if compile_prog "" "$cap_libs" ; then
3541     cap_ng=yes
3542     libs_tools="$cap_libs $libs_tools"
3543   else
3544     if test "$cap_ng" = "yes" ; then
3545       feature_not_found "cap_ng" "Install libcap-ng devel"
3546     fi
3547     cap_ng=no
3548   fi
3549 fi
3550
3551 ##########################################
3552 # Sound support libraries probe
3553
3554 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3555 for drv in $audio_drv_list; do
3556     case $drv in
3557     alsa | try-alsa)
3558     if $pkg_config alsa --exists; then
3559         alsa_libs=$($pkg_config alsa --libs)
3560         if test "$drv" = "try-alsa"; then
3561             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3562         fi
3563     else
3564         if test "$drv" = "try-alsa"; then
3565             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3566         else
3567             error_exit "$drv check failed" \
3568                 "Make sure to have the $drv libs and headers installed."
3569         fi
3570     fi
3571     ;;
3572
3573     pa | try-pa)
3574     if $pkg_config libpulse --exists; then
3575         pulse_libs=$($pkg_config libpulse --libs)
3576         if test "$drv" = "try-pa"; then
3577             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3578         fi
3579     else
3580         if test "$drv" = "try-pa"; then
3581             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3582         else
3583             error_exit "$drv check failed" \
3584                 "Make sure to have the $drv libs and headers installed."
3585         fi
3586     fi
3587     ;;
3588
3589     sdl)
3590     if test "$sdl" = "no"; then
3591         error_exit "sdl not found or disabled, can not use sdl audio driver"
3592     fi
3593     ;;
3594
3595     try-sdl)
3596     if test "$sdl" = "no"; then
3597         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3598     else
3599         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3600     fi
3601     ;;
3602
3603     coreaudio)
3604       coreaudio_libs="-framework CoreAudio"
3605     ;;
3606
3607     dsound)
3608       dsound_libs="-lole32 -ldxguid"
3609       audio_win_int="yes"
3610     ;;
3611
3612     oss)
3613       oss_libs="$oss_lib"
3614     ;;
3615
3616     *)
3617     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3618         error_exit "Unknown driver '$drv' selected" \
3619             "Possible drivers are: $audio_possible_drivers"
3620     }
3621     ;;
3622     esac
3623 done
3624
3625 ##########################################
3626 # BrlAPI probe
3627
3628 if test "$brlapi" != "no" ; then
3629   brlapi_libs="-lbrlapi"
3630   cat > $TMPC << EOF
3631 #include <brlapi.h>
3632 #include <stddef.h>
3633 int main( void ) { return brlapi__openConnection (NULL, NULL, NULL); }
3634 EOF
3635   if compile_prog "" "$brlapi_libs" ; then
3636     brlapi=yes
3637   else
3638     if test "$brlapi" = "yes" ; then
3639       feature_not_found "brlapi" "Install brlapi devel"
3640     fi
3641     brlapi=no
3642   fi
3643 fi
3644
3645 ##########################################
3646 # iconv probe
3647 if test "$iconv" != "no" ; then
3648   cat > $TMPC << EOF
3649 #include <iconv.h>
3650 int main(void) {
3651   iconv_t conv = iconv_open("WCHAR_T", "UCS-2");
3652   return conv != (iconv_t) -1;
3653 }
3654 EOF
3655   iconv_prefix_list="/usr/local:/usr"
3656   iconv_lib_list=":-liconv"
3657   IFS=:
3658   for iconv_prefix in $iconv_prefix_list; do
3659     IFS=:
3660     iconv_cflags="-I$iconv_prefix/include"
3661     iconv_ldflags="-L$iconv_prefix/lib"
3662     for iconv_link in $iconv_lib_list; do
3663       unset IFS
3664       iconv_lib="$iconv_ldflags $iconv_link"
3665       echo "looking at iconv in '$iconv_cflags' '$iconv_lib'" >> config.log
3666       if compile_prog "$iconv_cflags" "$iconv_lib" ; then
3667         iconv_found=yes
3668         break
3669       fi
3670     done
3671     if test "$iconv_found" = yes ; then
3672       break
3673     fi
3674   done
3675   if test "$iconv_found" = "yes" ; then
3676     iconv=yes
3677   else
3678     if test "$iconv" = "yes" ; then
3679       feature_not_found "iconv" "Install iconv devel"
3680     fi
3681     iconv=no
3682   fi
3683 fi
3684
3685 ##########################################
3686 # curses probe
3687 if test "$iconv" = "no" ; then
3688   # curses will need iconv
3689   curses=no
3690 fi
3691 if test "$curses" != "no" ; then
3692   if test "$mingw32" = "yes" ; then
3693     curses_inc_list="$($pkg_config --cflags ncurses 2>/dev/null):"
3694     curses_lib_list="$($pkg_config --libs ncurses 2>/dev/null):-lpdcurses"
3695   else
3696     curses_inc_list="$($pkg_config --cflags ncursesw 2>/dev/null):-I/usr/include/ncursesw:"
3697     curses_lib_list="$($pkg_config --libs ncursesw 2>/dev/null):-lncursesw:-lcursesw"
3698   fi
3699   curses_found=no
3700   cat > $TMPC << EOF
3701 #include <locale.h>
3702 #include <curses.h>
3703 #include <wchar.h>
3704 #include <langinfo.h>
3705 int main(void) {
3706   const char *codeset;
3707   wchar_t wch = L'w';
3708   setlocale(LC_ALL, "");
3709   resize_term(0, 0);
3710   addwstr(L"wide chars\n");
3711   addnwstr(&wch, 1);
3712   add_wch(WACS_DEGREE);
3713   codeset = nl_langinfo(CODESET);
3714   return codeset != 0;
3715 }
3716 EOF
3717   IFS=:
3718   for curses_inc in $curses_inc_list; do
3719     # Make sure we get the wide character prototypes
3720     curses_inc="-DNCURSES_WIDECHAR $curses_inc"
3721     IFS=:
3722     for curses_lib in $curses_lib_list; do
3723       unset IFS
3724       if compile_prog "$curses_inc" "$curses_lib" ; then
3725         curses_found=yes
3726         break
3727       fi
3728     done
3729     if test "$curses_found" = yes ; then
3730       break
3731     fi
3732   done
3733   unset IFS
3734   if test "$curses_found" = "yes" ; then
3735     curses=yes
3736   else
3737     if test "$curses" = "yes" ; then
3738       feature_not_found "curses" "Install ncurses devel"
3739     fi
3740     curses=no
3741   fi
3742 fi
3743
3744 ##########################################
3745 # curl probe
3746 if test "$curl" != "no" ; then
3747   if $pkg_config libcurl --exists; then
3748     curlconfig="$pkg_config libcurl"
3749   else
3750     curlconfig=curl-config
3751   fi
3752   cat > $TMPC << EOF
3753 #include <curl/curl.h>
3754 int main(void) { curl_easy_init(); curl_multi_setopt(0, 0, 0); return 0; }
3755 EOF
3756   curl_cflags=$($curlconfig --cflags 2>/dev/null)
3757   curl_libs=$($curlconfig --libs 2>/dev/null)
3758   if compile_prog "$curl_cflags" "$curl_libs" ; then
3759     curl=yes
3760   else
3761     if test "$curl" = "yes" ; then
3762       feature_not_found "curl" "Install libcurl devel"
3763     fi
3764     curl=no
3765   fi
3766 fi # test "$curl"
3767
3768 ##########################################
3769 # glib support probe
3770
3771 glib_req_ver=2.48
3772 glib_modules=gthread-2.0
3773 if test "$modules" = yes; then
3774     glib_modules="$glib_modules gmodule-export-2.0"
3775 fi
3776 if test "$plugins" = yes; then
3777     glib_modules="$glib_modules gmodule-2.0"
3778 fi
3779
3780 # This workaround is required due to a bug in pkg-config file for glib as it
3781 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3782
3783 if test "$static" = yes && test "$mingw32" = yes; then
3784     QEMU_CFLAGS="-DGLIB_STATIC_COMPILATION $QEMU_CFLAGS"
3785 fi
3786
3787 for i in $glib_modules; do
3788     if $pkg_config --atleast-version=$glib_req_ver $i; then
3789         glib_cflags=$($pkg_config --cflags $i)
3790         glib_libs=$($pkg_config --libs $i)
3791         QEMU_CFLAGS="$glib_cflags $QEMU_CFLAGS"
3792         LIBS="$glib_libs $LIBS"
3793         libs_qga="$glib_libs $libs_qga"
3794     else
3795         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3796     fi
3797 done
3798
3799 if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3800     gio=yes
3801     gio_cflags=$($pkg_config --cflags gio-2.0)
3802     gio_libs=$($pkg_config --libs gio-2.0)
3803     gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3804     if [ ! -x "$gdbus_codegen" ]; then
3805         gdbus_codegen=
3806     fi
3807 else
3808     gio=no
3809 fi
3810
3811 if $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3812     gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3813     gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3814 fi
3815
3816 # Sanity check that the current size_t matches the
3817 # size that glib thinks it should be. This catches
3818 # problems on multi-arch where people try to build
3819 # 32-bit QEMU while pointing at 64-bit glib headers
3820 cat > $TMPC <<EOF
3821 #include <glib.h>
3822 #include <unistd.h>
3823
3824 #define QEMU_BUILD_BUG_ON(x) \
3825   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3826
3827 int main(void) {
3828    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3829    return 0;
3830 }
3831 EOF
3832
3833 if ! compile_prog "$CFLAGS" "$LIBS" ; then
3834     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3835                "You probably need to set PKG_CONFIG_LIBDIR"\
3836                "to point to the right pkg-config files for your"\
3837                "build target"
3838 fi
3839
3840 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3841 cat > $TMPC << EOF
3842 #include <glib.h>
3843 int main(void) { return 0; }
3844 EOF
3845 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3846     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3847         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3848         CFLAGS="-Wno-unknown-attributes $CFLAGS"
3849     fi
3850 fi
3851
3852 #########################################
3853 # zlib check
3854
3855 if test "$zlib" != "no" ; then
3856     if $pkg_config --exists zlib; then
3857         zlib_cflags=$($pkg_config --cflags zlib)
3858         zlib_libs=$($pkg_config --libs zlib)
3859         QEMU_CFLAGS="$zlib_cflags $QEMU_CFLAGS"
3860         LIBS="$zlib_libs $LIBS"
3861     else
3862         cat > $TMPC << EOF
3863 #include <zlib.h>
3864 int main(void) { zlibVersion(); return 0; }
3865 EOF
3866         if compile_prog "" "-lz" ; then
3867             LIBS="$LIBS -lz"
3868         else
3869             error_exit "zlib check failed" \
3870                 "Make sure to have the zlib libs and headers installed."
3871         fi
3872     fi
3873 fi
3874
3875 ##########################################
3876 # SHA command probe for modules
3877 if test "$modules" = yes; then
3878     shacmd_probe="sha1sum sha1 shasum"
3879     for c in $shacmd_probe; do
3880         if has $c; then
3881             shacmd="$c"
3882             break
3883         fi
3884     done
3885     if test "$shacmd" = ""; then
3886         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3887     fi
3888 fi
3889
3890 ##########################################
3891 # pixman support probe
3892
3893 if test "$want_tools" = "no" && test "$softmmu" = "no"; then
3894   pixman_cflags=
3895   pixman_libs=
3896 elif $pkg_config --atleast-version=0.21.8 pixman-1 > /dev/null 2>&1; then
3897   pixman_cflags=$($pkg_config --cflags pixman-1)
3898   pixman_libs=$($pkg_config --libs pixman-1)
3899 else
3900   error_exit "pixman >= 0.21.8 not present." \
3901       "Please install the pixman devel package."
3902 fi
3903
3904 ##########################################
3905 # libmpathpersist probe
3906
3907 if test "$mpath" != "no" ; then
3908   # probe for the new API
3909   cat > $TMPC <<EOF
3910 #include <libudev.h>
3911 #include <mpath_persist.h>
3912 unsigned mpath_mx_alloc_len = 1024;
3913 int logsink;
3914 static struct config *multipath_conf;
3915 extern struct udev *udev;
3916 extern struct config *get_multipath_config(void);
3917 extern void put_multipath_config(struct config *conf);
3918 struct udev *udev;
3919 struct config *get_multipath_config(void) { return multipath_conf; }
3920 void put_multipath_config(struct config *conf) { }
3921
3922 int main(void) {
3923     udev = udev_new();
3924     multipath_conf = mpath_lib_init();
3925     return 0;
3926 }
3927 EOF
3928   if compile_prog "" "-ludev -lmultipath -lmpathpersist" ; then
3929     mpathpersist=yes
3930     mpathpersist_new_api=yes
3931   else
3932     # probe for the old API
3933     cat > $TMPC <<EOF
3934 #include <libudev.h>
3935 #include <mpath_persist.h>
3936 unsigned mpath_mx_alloc_len = 1024;
3937 int logsink;
3938 int main(void) {
3939     struct udev *udev = udev_new();
3940     mpath_lib_init(udev);
3941     return 0;
3942 }
3943 EOF
3944     if compile_prog "" "-ludev -lmultipath -lmpathpersist" ; then
3945       mpathpersist=yes
3946       mpathpersist_new_api=no
3947     else
3948       mpathpersist=no
3949     fi
3950   fi
3951 else
3952   mpathpersist=no
3953 fi
3954
3955 ##########################################
3956 # pthread probe
3957 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3958
3959 pthread=no
3960 cat > $TMPC << EOF
3961 #include <pthread.h>
3962 static void *f(void *p) { return NULL; }
3963 int main(void) {
3964   pthread_t thread;
3965   pthread_create(&thread, 0, f, 0);
3966   return 0;
3967 }
3968 EOF
3969 if compile_prog "" "" ; then
3970   pthread=yes
3971 else
3972   for pthread_lib in $PTHREADLIBS_LIST; do
3973     if compile_prog "" "$pthread_lib" ; then
3974       pthread=yes
3975       found=no
3976       for lib_entry in $LIBS; do
3977         if test "$lib_entry" = "$pthread_lib"; then
3978           found=yes
3979           break
3980         fi
3981       done
3982       if test "$found" = "no"; then
3983         LIBS="$pthread_lib $LIBS"
3984         libs_qga="$pthread_lib $libs_qga"
3985       fi
3986       PTHREAD_LIB="$pthread_lib"
3987       break
3988     fi
3989   done
3990 fi
3991
3992 if test "$mingw32" != yes && test "$pthread" = no; then
3993   error_exit "pthread check failed" \
3994       "Make sure to have the pthread libs and headers installed."
3995 fi
3996
3997 # check for pthread_setname_np with thread id
3998 pthread_setname_np_w_tid=no
3999 cat > $TMPC << EOF
4000 #include <pthread.h>
4001
4002 static void *f(void *p) { return NULL; }
4003 int main(void)
4004 {
4005     pthread_t thread;
4006     pthread_create(&thread, 0, f, 0);
4007     pthread_setname_np(thread, "QEMU");
4008     return 0;
4009 }
4010 EOF
4011 if compile_prog "" "$pthread_lib" ; then
4012   pthread_setname_np_w_tid=yes
4013 fi
4014
4015 # check for pthread_setname_np without thread id
4016 pthread_setname_np_wo_tid=no
4017 cat > $TMPC << EOF
4018 #include <pthread.h>
4019
4020 static void *f(void *p) { pthread_setname_np("QEMU"); }
4021 int main(void)
4022 {
4023     pthread_t thread;
4024     pthread_create(&thread, 0, f, 0);
4025     return 0;
4026 }
4027 EOF
4028 if compile_prog "" "$pthread_lib" ; then
4029   pthread_setname_np_wo_tid=yes
4030 fi
4031
4032 ##########################################
4033 # rbd probe
4034 if test "$rbd" != "no" ; then
4035   cat > $TMPC <<EOF
4036 #include <stdio.h>
4037 #include <rbd/librbd.h>
4038 int main(void) {
4039     rados_t cluster;
4040     rados_create(&cluster, NULL);
4041     return 0;
4042 }
4043 EOF
4044   rbd_libs="-lrbd -lrados"
4045   if compile_prog "" "$rbd_libs" ; then
4046     rbd=yes
4047   else
4048     if test "$rbd" = "yes" ; then
4049       feature_not_found "rados block device" "Install librbd/ceph devel"
4050     fi
4051     rbd=no
4052   fi
4053 fi
4054
4055 ##########################################
4056 # libssh probe
4057 if test "$libssh" != "no" ; then
4058   if $pkg_config --exists libssh; then
4059     libssh_cflags=$($pkg_config libssh --cflags)
4060     libssh_libs=$($pkg_config libssh --libs)
4061     libssh=yes
4062   else
4063     if test "$libssh" = "yes" ; then
4064       error_exit "libssh required for --enable-libssh"
4065     fi
4066     libssh=no
4067   fi
4068 fi
4069
4070 ##########################################
4071 # Check for libssh 0.8
4072 # This is done like this instead of using the LIBSSH_VERSION_* and
4073 # SSH_VERSION_* macros because some distributions in the past shipped
4074 # snapshots of the future 0.8 from Git, and those snapshots did not
4075 # have updated version numbers (still referring to 0.7.0).
4076
4077 if test "$libssh" = "yes"; then
4078   cat > $TMPC <<EOF
4079 #include <libssh/libssh.h>
4080 int main(void) { return ssh_get_server_publickey(NULL, NULL); }
4081 EOF
4082   if compile_prog "$libssh_cflags" "$libssh_libs"; then
4083     libssh_cflags="-DHAVE_LIBSSH_0_8 $libssh_cflags"
4084   fi
4085 fi
4086
4087 ##########################################
4088 # linux-aio probe
4089
4090 if test "$linux_aio" != "no" ; then
4091   cat > $TMPC <<EOF
4092 #include <libaio.h>
4093 #include <sys/eventfd.h>
4094 #include <stddef.h>
4095 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
4096 EOF
4097   if compile_prog "" "-laio" ; then
4098     linux_aio=yes
4099   else
4100     if test "$linux_aio" = "yes" ; then
4101       feature_not_found "linux AIO" "Install libaio devel"
4102     fi
4103     linux_aio=no
4104   fi
4105 fi
4106 ##########################################
4107 # linux-io-uring probe
4108
4109 if test "$linux_io_uring" != "no" ; then
4110   if $pkg_config liburing; then
4111     linux_io_uring_cflags=$($pkg_config --cflags liburing)
4112     linux_io_uring_libs=$($pkg_config --libs liburing)
4113     linux_io_uring=yes
4114
4115     # io_uring is used in libqemuutil.a where per-file -libs variables are not
4116     # seen by programs linking the archive.  It's not ideal, but just add the
4117     # library dependency globally.
4118     LIBS="$linux_io_uring_libs $LIBS"
4119   else
4120     if test "$linux_io_uring" = "yes" ; then
4121       feature_not_found "linux io_uring" "Install liburing devel"
4122     fi
4123     linux_io_uring=no
4124   fi
4125 fi
4126
4127 ##########################################
4128 # TPM emulation is only on POSIX
4129
4130 if test "$tpm" = ""; then
4131   if test "$mingw32" = "yes"; then
4132     tpm=no
4133   else
4134     tpm=yes
4135   fi
4136 elif test "$tpm" = "yes"; then
4137   if test "$mingw32" = "yes" ; then
4138     error_exit "TPM emulation only available on POSIX systems"
4139   fi
4140 fi
4141
4142 ##########################################
4143 # attr probe
4144
4145 if test "$attr" != "no" ; then
4146   cat > $TMPC <<EOF
4147 #include <stdio.h>
4148 #include <sys/types.h>
4149 #ifdef CONFIG_LIBATTR
4150 #include <attr/xattr.h>
4151 #else
4152 #include <sys/xattr.h>
4153 #endif
4154 int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }
4155 EOF
4156   if compile_prog "" "" ; then
4157     attr=yes
4158   # Older distros have <attr/xattr.h>, and need -lattr:
4159   elif compile_prog "-DCONFIG_LIBATTR" "-lattr" ; then
4160     attr=yes
4161     LIBS="-lattr $LIBS"
4162     libattr=yes
4163   else
4164     if test "$attr" = "yes" ; then
4165       feature_not_found "ATTR" "Install libc6 or libattr devel"
4166     fi
4167     attr=no
4168   fi
4169 fi
4170
4171 ##########################################
4172 # iovec probe
4173 cat > $TMPC <<EOF
4174 #include <sys/types.h>
4175 #include <sys/uio.h>
4176 #include <unistd.h>
4177 int main(void) { return sizeof(struct iovec); }
4178 EOF
4179 iovec=no
4180 if compile_prog "" "" ; then
4181   iovec=yes
4182 fi
4183
4184 ##########################################
4185 # preadv probe
4186 cat > $TMPC <<EOF
4187 #include <sys/types.h>
4188 #include <sys/uio.h>
4189 #include <unistd.h>
4190 int main(void) { return preadv(0, 0, 0, 0); }
4191 EOF
4192 preadv=no
4193 if compile_prog "" "" ; then
4194   preadv=yes
4195 fi
4196
4197 ##########################################
4198 # fdt probe
4199 # fdt support is mandatory for at least some target architectures,
4200 # so insist on it if we're building those system emulators.
4201 fdt_required=no
4202 for target in $target_list; do
4203   case $target in
4204     aarch64*-softmmu|arm*-softmmu|ppc*-softmmu|microblaze*-softmmu|mips64el-softmmu|riscv*-softmmu)
4205       fdt_required=yes
4206     ;;
4207   esac
4208 done
4209
4210 if test "$fdt_required" = "yes"; then
4211   if test "$fdt" = "no"; then
4212     error_exit "fdt disabled but some requested targets require it." \
4213       "You can turn off fdt only if you also disable all the system emulation" \
4214       "targets which need it (by specifying a cut down --target-list)."
4215   fi
4216   fdt=yes
4217 elif test "$fdt" != "yes" ; then
4218   fdt=no
4219 fi
4220
4221 # fdt is only required when building softmmu targets
4222 if test -z "$fdt" -a "$softmmu" != "yes" ; then
4223     fdt="no"
4224 fi
4225
4226 if test "$fdt" != "no" ; then
4227   fdt_libs="-lfdt"
4228   # explicitly check for libfdt_env.h as it is missing in some stable installs
4229   # and test for required functions to make sure we are on a version >= 1.4.2
4230   cat > $TMPC << EOF
4231 #include <libfdt.h>
4232 #include <libfdt_env.h>
4233 int main(void) { fdt_check_full(NULL, 0); return 0; }
4234 EOF
4235   if compile_prog "" "$fdt_libs" ; then
4236     # system DTC is good - use it
4237     fdt=system
4238   else
4239       # have GIT checkout, so activate dtc submodule
4240       if test -e "${source_path}/.git" ; then
4241           git_submodules="${git_submodules} dtc"
4242       fi
4243       if test -d "${source_path}/dtc/libfdt" || test -e "${source_path}/.git" ; then
4244           fdt=git
4245           mkdir -p dtc
4246           if [ "$pwd_is_source_path" != "y" ] ; then
4247               symlink "$source_path/dtc/Makefile" "dtc/Makefile"
4248               symlink "$source_path/dtc/scripts" "dtc/scripts"
4249           fi
4250           fdt_cflags="-I\$(SRC_PATH)/dtc/libfdt"
4251           fdt_ldflags="-L\$(BUILD_DIR)/dtc/libfdt"
4252           fdt_libs="$fdt_libs"
4253       elif test "$fdt" = "yes" ; then
4254           # Not a git build & no libfdt found, prompt for system install
4255           error_exit "DTC (libfdt) version >= 1.4.2 not present." \
4256                      "Please install the DTC (libfdt) devel package"
4257       else
4258           # don't have and don't want
4259           fdt_libs=
4260           fdt=no
4261       fi
4262   fi
4263 fi
4264
4265 libs_softmmu="$libs_softmmu $fdt_libs"
4266
4267 ##########################################
4268 # opengl probe (for sdl2, gtk, milkymist-tmu2)
4269
4270 gbm="no"
4271 if $pkg_config gbm; then
4272     gbm_cflags="$($pkg_config --cflags gbm)"
4273     gbm_libs="$($pkg_config --libs gbm)"
4274     gbm="yes"
4275 fi
4276
4277 if test "$opengl" != "no" ; then
4278   opengl_pkgs="epoxy gbm"
4279   if $pkg_config $opengl_pkgs; then
4280     opengl_cflags="$($pkg_config --cflags $opengl_pkgs)"
4281     opengl_libs="$($pkg_config --libs $opengl_pkgs)"
4282     opengl=yes
4283     if test "$gtk" = "yes" && $pkg_config --exists "$gtkpackage >= 3.16"; then
4284         gtk_gl="yes"
4285     fi
4286     QEMU_CFLAGS="$QEMU_CFLAGS $opengl_cflags"
4287   else
4288     if test "$opengl" = "yes" ; then
4289       feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
4290     fi
4291     opengl_cflags=""
4292     opengl_libs=""
4293     opengl=no
4294   fi
4295 fi
4296
4297 if test "$opengl" = "yes"; then
4298   cat > $TMPC << EOF
4299 #include <epoxy/egl.h>
4300 #ifndef EGL_MESA_image_dma_buf_export
4301 # error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
4302 #endif
4303 int main(void) { return 0; }
4304 EOF
4305   if compile_prog "" "" ; then
4306     opengl_dmabuf=yes
4307   fi
4308 fi
4309
4310 if test "$opengl" = "yes" && test "$have_x11" = "yes"; then
4311   for target in $target_list; do
4312     case $target in
4313       lm32-softmmu) # milkymist-tmu2 requires X11 and OpenGL
4314         need_x11=yes
4315       ;;
4316     esac
4317   done
4318 fi
4319
4320 ##########################################
4321 # libxml2 probe
4322 if test "$libxml2" != "no" ; then
4323     if $pkg_config --exists libxml-2.0; then
4324         libxml2="yes"
4325         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
4326         libxml2_libs=$($pkg_config --libs libxml-2.0)
4327     else
4328         if test "$libxml2" = "yes"; then
4329             feature_not_found "libxml2" "Install libxml2 devel"
4330         fi
4331         libxml2="no"
4332     fi
4333 fi
4334
4335 ##########################################
4336 # glusterfs probe
4337 if test "$glusterfs" != "no" ; then
4338   if $pkg_config --atleast-version=3 glusterfs-api; then
4339     glusterfs="yes"
4340     glusterfs_cflags=$($pkg_config --cflags glusterfs-api)
4341     glusterfs_libs=$($pkg_config --libs glusterfs-api)
4342     if $pkg_config --atleast-version=4 glusterfs-api; then
4343       glusterfs_xlator_opt="yes"
4344     fi
4345     if $pkg_config --atleast-version=5 glusterfs-api; then
4346       glusterfs_discard="yes"
4347     fi
4348     if $pkg_config --atleast-version=6 glusterfs-api; then
4349       glusterfs_fallocate="yes"
4350       glusterfs_zerofill="yes"
4351     fi
4352     cat > $TMPC << EOF
4353 #include <glusterfs/api/glfs.h>
4354
4355 int
4356 main(void)
4357 {
4358         /* new glfs_ftruncate() passes two additional args */
4359         return glfs_ftruncate(NULL, 0, NULL, NULL);
4360 }
4361 EOF
4362     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
4363       glusterfs_ftruncate_has_stat="yes"
4364     fi
4365     cat > $TMPC << EOF
4366 #include <glusterfs/api/glfs.h>
4367
4368 /* new glfs_io_cbk() passes two additional glfs_stat structs */
4369 static void
4370 glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
4371 {}
4372
4373 int
4374 main(void)
4375 {
4376         glfs_io_cbk iocb = &glusterfs_iocb;
4377         iocb(NULL, 0 , NULL, NULL, NULL);
4378         return 0;
4379 }
4380 EOF
4381     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
4382       glusterfs_iocb_has_stat="yes"
4383     fi
4384   else
4385     if test "$glusterfs" = "yes" ; then
4386       feature_not_found "GlusterFS backend support" \
4387           "Install glusterfs-api devel >= 3"
4388     fi
4389     glusterfs="no"
4390   fi
4391 fi
4392
4393 # Check for inotify functions when we are building linux-user
4394 # emulator.  This is done because older glibc versions don't
4395 # have syscall stubs for these implemented.  In that case we
4396 # don't provide them even if kernel supports them.
4397 #
4398 inotify=no
4399 cat > $TMPC << EOF
4400 #include <sys/inotify.h>
4401
4402 int
4403 main(void)
4404 {
4405         /* try to start inotify */
4406         return inotify_init();
4407 }
4408 EOF
4409 if compile_prog "" "" ; then
4410   inotify=yes
4411 fi
4412
4413 inotify1=no
4414 cat > $TMPC << EOF
4415 #include <sys/inotify.h>
4416
4417 int
4418 main(void)
4419 {
4420     /* try to start inotify */
4421     return inotify_init1(0);
4422 }
4423 EOF
4424 if compile_prog "" "" ; then
4425   inotify1=yes
4426 fi
4427
4428 # check if pipe2 is there
4429 pipe2=no
4430 cat > $TMPC << EOF
4431 #include <unistd.h>
4432 #include <fcntl.h>
4433
4434 int main(void)
4435 {
4436     int pipefd[2];
4437     return pipe2(pipefd, O_CLOEXEC);
4438 }
4439 EOF
4440 if compile_prog "" "" ; then
4441   pipe2=yes
4442 fi
4443
4444 # check if accept4 is there
4445 accept4=no
4446 cat > $TMPC << EOF
4447 #include <sys/socket.h>
4448 #include <stddef.h>
4449
4450 int main(void)
4451 {
4452     accept4(0, NULL, NULL, SOCK_CLOEXEC);
4453     return 0;
4454 }
4455 EOF
4456 if compile_prog "" "" ; then
4457   accept4=yes
4458 fi
4459
4460 # check if tee/splice is there. vmsplice was added same time.
4461 splice=no
4462 cat > $TMPC << EOF
4463 #include <unistd.h>
4464 #include <fcntl.h>
4465 #include <limits.h>
4466
4467 int main(void)
4468 {
4469     int len, fd = 0;
4470     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
4471     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
4472     return 0;
4473 }
4474 EOF
4475 if compile_prog "" "" ; then
4476   splice=yes
4477 fi
4478
4479 ##########################################
4480 # libnuma probe
4481
4482 if test "$numa" != "no" ; then
4483   cat > $TMPC << EOF
4484 #include <numa.h>
4485 int main(void) { return numa_available(); }
4486 EOF
4487
4488   if compile_prog "" "-lnuma" ; then
4489     numa=yes
4490     libs_softmmu="-lnuma $libs_softmmu"
4491   else
4492     if test "$numa" = "yes" ; then
4493       feature_not_found "numa" "install numactl devel"
4494     fi
4495     numa=no
4496   fi
4497 fi
4498
4499 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
4500     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
4501     exit 1
4502 fi
4503
4504 # Even if malloc_trim() is available, these non-libc memory allocators
4505 # do not support it.
4506 if test "$tcmalloc" = "yes" || test "$jemalloc" = "yes" ; then
4507     if test "$malloc_trim" = "yes" ; then
4508         echo "Disabling malloc_trim with non-libc memory allocator"
4509     fi
4510     malloc_trim="no"
4511 fi
4512
4513 #######################################
4514 # malloc_trim
4515
4516 if test "$malloc_trim" != "no" ; then
4517     cat > $TMPC << EOF
4518 #include <malloc.h>
4519 int main(void) { malloc_trim(0); return 0; }
4520 EOF
4521     if compile_prog "" "" ; then
4522         malloc_trim="yes"
4523     else
4524         malloc_trim="no"
4525     fi
4526 fi
4527
4528 ##########################################
4529 # tcmalloc probe
4530
4531 if test "$tcmalloc" = "yes" ; then
4532   cat > $TMPC << EOF
4533 #include <stdlib.h>
4534 int main(void) { malloc(1); return 0; }
4535 EOF
4536
4537   if compile_prog "" "-ltcmalloc" ; then
4538     LIBS="-ltcmalloc $LIBS"
4539   else
4540     feature_not_found "tcmalloc" "install gperftools devel"
4541   fi
4542 fi
4543
4544 ##########################################
4545 # jemalloc probe
4546
4547 if test "$jemalloc" = "yes" ; then
4548   cat > $TMPC << EOF
4549 #include <stdlib.h>
4550 int main(void) { malloc(1); return 0; }
4551 EOF
4552
4553   if compile_prog "" "-ljemalloc" ; then
4554     LIBS="-ljemalloc $LIBS"
4555   else
4556     feature_not_found "jemalloc" "install jemalloc devel"
4557   fi
4558 fi
4559
4560 ##########################################
4561 # signalfd probe
4562 signalfd="no"
4563 cat > $TMPC << EOF
4564 #include <unistd.h>
4565 #include <sys/syscall.h>
4566 #include <signal.h>
4567 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
4568 EOF
4569
4570 if compile_prog "" "" ; then
4571   signalfd=yes
4572 fi
4573
4574 # check if optreset global is declared by <getopt.h>
4575 optreset="no"
4576 cat > $TMPC << EOF
4577 #include <getopt.h>
4578 int main(void) { return optreset; }
4579 EOF
4580
4581 if compile_prog "" "" ; then
4582   optreset=yes
4583 fi
4584
4585 # check if eventfd is supported
4586 eventfd=no
4587 cat > $TMPC << EOF
4588 #include <sys/eventfd.h>
4589
4590 int main(void)
4591 {
4592     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
4593 }
4594 EOF
4595 if compile_prog "" "" ; then
4596   eventfd=yes
4597 fi
4598
4599 # check if memfd is supported
4600 memfd=no
4601 cat > $TMPC << EOF
4602 #include <sys/mman.h>
4603
4604 int main(void)
4605 {
4606     return memfd_create("foo", MFD_ALLOW_SEALING);
4607 }
4608 EOF
4609 if compile_prog "" "" ; then
4610   memfd=yes
4611 fi
4612
4613 # check for usbfs
4614 have_usbfs=no
4615 if test "$linux_user" = "yes"; then
4616   cat > $TMPC << EOF
4617 #include <linux/usbdevice_fs.h>
4618
4619 #ifndef USBDEVFS_GET_CAPABILITIES
4620 #error "USBDEVFS_GET_CAPABILITIES undefined"
4621 #endif
4622
4623 #ifndef USBDEVFS_DISCONNECT_CLAIM
4624 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
4625 #endif
4626
4627 int main(void)
4628 {
4629     return 0;
4630 }
4631 EOF
4632   if compile_prog "" ""; then
4633     have_usbfs=yes
4634   fi
4635 fi
4636
4637 # check for fallocate
4638 fallocate=no
4639 cat > $TMPC << EOF
4640 #include <fcntl.h>
4641
4642 int main(void)
4643 {
4644     fallocate(0, 0, 0, 0);
4645     return 0;
4646 }
4647 EOF
4648 if compile_prog "" "" ; then
4649   fallocate=yes
4650 fi
4651
4652 # check for fallocate hole punching
4653 fallocate_punch_hole=no
4654 cat > $TMPC << EOF
4655 #include <fcntl.h>
4656 #include <linux/falloc.h>
4657
4658 int main(void)
4659 {
4660     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
4661     return 0;
4662 }
4663 EOF
4664 if compile_prog "" "" ; then
4665   fallocate_punch_hole=yes
4666 fi
4667
4668 # check that fallocate supports range zeroing inside the file
4669 fallocate_zero_range=no
4670 cat > $TMPC << EOF
4671 #include <fcntl.h>
4672 #include <linux/falloc.h>
4673
4674 int main(void)
4675 {
4676     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
4677     return 0;
4678 }
4679 EOF
4680 if compile_prog "" "" ; then
4681   fallocate_zero_range=yes
4682 fi
4683
4684 # check for posix_fallocate
4685 posix_fallocate=no
4686 cat > $TMPC << EOF
4687 #include <fcntl.h>
4688
4689 int main(void)
4690 {
4691     posix_fallocate(0, 0, 0);
4692     return 0;
4693 }
4694 EOF
4695 if compile_prog "" "" ; then
4696     posix_fallocate=yes
4697 fi
4698
4699 # check for sync_file_range
4700 sync_file_range=no
4701 cat > $TMPC << EOF
4702 #include <fcntl.h>
4703
4704 int main(void)
4705 {
4706     sync_file_range(0, 0, 0, 0);
4707     return 0;
4708 }
4709 EOF
4710 if compile_prog "" "" ; then
4711   sync_file_range=yes
4712 fi
4713
4714 # check for linux/fiemap.h and FS_IOC_FIEMAP
4715 fiemap=no
4716 cat > $TMPC << EOF
4717 #include <sys/ioctl.h>
4718 #include <linux/fs.h>
4719 #include <linux/fiemap.h>
4720
4721 int main(void)
4722 {
4723     ioctl(0, FS_IOC_FIEMAP, 0);
4724     return 0;
4725 }
4726 EOF
4727 if compile_prog "" "" ; then
4728   fiemap=yes
4729 fi
4730
4731 # check for dup3
4732 dup3=no
4733 cat > $TMPC << EOF
4734 #include <unistd.h>
4735
4736 int main(void)
4737 {
4738     dup3(0, 0, 0);
4739     return 0;
4740 }
4741 EOF
4742 if compile_prog "" "" ; then
4743   dup3=yes
4744 fi
4745
4746 # check for ppoll support
4747 ppoll=no
4748 cat > $TMPC << EOF
4749 #include <poll.h>
4750
4751 int main(void)
4752 {
4753     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
4754     ppoll(&pfd, 1, 0, 0);
4755     return 0;
4756 }
4757 EOF
4758 if compile_prog "" "" ; then
4759   ppoll=yes
4760 fi
4761
4762 # check for prctl(PR_SET_TIMERSLACK , ... ) support
4763 prctl_pr_set_timerslack=no
4764 cat > $TMPC << EOF
4765 #include <sys/prctl.h>
4766
4767 int main(void)
4768 {
4769     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
4770     return 0;
4771 }
4772 EOF
4773 if compile_prog "" "" ; then
4774   prctl_pr_set_timerslack=yes
4775 fi
4776
4777 # check for epoll support
4778 epoll=no
4779 cat > $TMPC << EOF
4780 #include <sys/epoll.h>
4781
4782 int main(void)
4783 {
4784     epoll_create(0);
4785     return 0;
4786 }
4787 EOF
4788 if compile_prog "" "" ; then
4789   epoll=yes
4790 fi
4791
4792 # epoll_create1 is a later addition
4793 # so we must check separately for its presence
4794 epoll_create1=no
4795 cat > $TMPC << EOF
4796 #include <sys/epoll.h>
4797
4798 int main(void)
4799 {
4800     /* Note that we use epoll_create1 as a value, not as
4801      * a function being called. This is necessary so that on
4802      * old SPARC glibc versions where the function was present in
4803      * the library but not declared in the header file we will
4804      * fail the configure check. (Otherwise we will get a compiler
4805      * warning but not an error, and will proceed to fail the
4806      * qemu compile where we compile with -Werror.)
4807      */
4808     return (int)(uintptr_t)&epoll_create1;
4809 }
4810 EOF
4811 if compile_prog "" "" ; then
4812   epoll_create1=yes
4813 fi
4814
4815 # check for sendfile support
4816 sendfile=no
4817 cat > $TMPC << EOF
4818 #include <sys/sendfile.h>
4819
4820 int main(void)
4821 {
4822     return sendfile(0, 0, 0, 0);
4823 }
4824 EOF
4825 if compile_prog "" "" ; then
4826   sendfile=yes
4827 fi
4828
4829 # check for timerfd support (glibc 2.8 and newer)
4830 timerfd=no
4831 cat > $TMPC << EOF
4832 #include <sys/timerfd.h>
4833
4834 int main(void)
4835 {
4836     return(timerfd_create(CLOCK_REALTIME, 0));
4837 }
4838 EOF
4839 if compile_prog "" "" ; then
4840   timerfd=yes
4841 fi
4842
4843 # check for setns and unshare support
4844 setns=no
4845 cat > $TMPC << EOF
4846 #include <sched.h>
4847
4848 int main(void)
4849 {
4850     int ret;
4851     ret = setns(0, 0);
4852     ret = unshare(0);
4853     return ret;
4854 }
4855 EOF
4856 if compile_prog "" "" ; then
4857   setns=yes
4858 fi
4859
4860 # clock_adjtime probe
4861 clock_adjtime=no
4862 cat > $TMPC <<EOF
4863 #include <time.h>
4864
4865 int main(void)
4866 {
4867     return clock_adjtime(0, 0);
4868 }
4869 EOF
4870 clock_adjtime=no
4871 if compile_prog "" "" ; then
4872   clock_adjtime=yes
4873 fi
4874
4875 # syncfs probe
4876 syncfs=no
4877 cat > $TMPC <<EOF
4878 #include <unistd.h>
4879
4880 int main(void)
4881 {
4882     return syncfs(0);
4883 }
4884 EOF
4885 syncfs=no
4886 if compile_prog "" "" ; then
4887   syncfs=yes
4888 fi
4889
4890 # check for kcov support (kernel must be 4.4+, compiled with certain options)
4891 kcov=no
4892 if check_include sys/kcov.h ; then
4893     kcov=yes
4894 fi
4895
4896 # Check we have a new enough version of sphinx-build
4897 has_sphinx_build() {
4898     # This is a bit awkward but works: create a trivial document and
4899     # try to run it with our configuration file (which enforces a
4900     # version requirement). This will fail if either
4901     # sphinx-build doesn't exist at all or if it is too old.
4902     mkdir -p "$TMPDIR1/sphinx"
4903     touch "$TMPDIR1/sphinx/index.rst"
4904     "$sphinx_build" -c "$source_path/docs" -b html "$TMPDIR1/sphinx" "$TMPDIR1/sphinx/out" >/dev/null 2>&1
4905 }
4906
4907 # Check if tools are available to build documentation.
4908 if test "$docs" != "no" ; then
4909   if has_sphinx_build; then
4910     sphinx_ok=yes
4911   else
4912     sphinx_ok=no
4913   fi
4914   if has makeinfo && has pod2man && test "$sphinx_ok" = "yes"; then
4915     docs=yes
4916   else
4917     if test "$docs" = "yes" ; then
4918       if has $sphinx_build && test "$sphinx_ok" != "yes"; then
4919         echo "Warning: $sphinx_build exists but it is either too old or uses too old a Python version" >&2
4920       fi
4921       feature_not_found "docs" "Install texinfo, Perl/perl-podlators and a Python 3 version of python-sphinx"
4922     fi
4923     docs=no
4924   fi
4925 fi
4926
4927 # Search for bswap_32 function
4928 byteswap_h=no
4929 cat > $TMPC << EOF
4930 #include <byteswap.h>
4931 int main(void) { return bswap_32(0); }
4932 EOF
4933 if compile_prog "" "" ; then
4934   byteswap_h=yes
4935 fi
4936
4937 # Search for bswap32 function
4938 bswap_h=no
4939 cat > $TMPC << EOF
4940 #include <sys/endian.h>
4941 #include <sys/types.h>
4942 #include <machine/bswap.h>
4943 int main(void) { return bswap32(0); }
4944 EOF
4945 if compile_prog "" "" ; then
4946   bswap_h=yes
4947 fi
4948
4949 ##########################################
4950 # Do we have libiscsi >= 1.9.0
4951 if test "$libiscsi" != "no" ; then
4952   if $pkg_config --atleast-version=1.9.0 libiscsi; then
4953     libiscsi="yes"
4954     libiscsi_cflags=$($pkg_config --cflags libiscsi)
4955     libiscsi_libs=$($pkg_config --libs libiscsi)
4956   else
4957     if test "$libiscsi" = "yes" ; then
4958       feature_not_found "libiscsi" "Install libiscsi >= 1.9.0"
4959     fi
4960     libiscsi="no"
4961   fi
4962 fi
4963
4964 ##########################################
4965 # Do we need libm
4966 cat > $TMPC << EOF
4967 #include <math.h>
4968 int main(int argc, char **argv) { return isnan(sin((double)argc)); }
4969 EOF
4970 if compile_prog "" "" ; then
4971   :
4972 elif compile_prog "" "-lm" ; then
4973   LIBS="-lm $LIBS"
4974   libs_qga="-lm $libs_qga"
4975 else
4976   error_exit "libm check failed"
4977 fi
4978
4979 ##########################################
4980 # Do we need librt
4981 # uClibc provides 2 versions of clock_gettime(), one with realtime
4982 # support and one without. This means that the clock_gettime() don't
4983 # need -lrt. We still need it for timer_create() so we check for this
4984 # function in addition.
4985 cat > $TMPC <<EOF
4986 #include <signal.h>
4987 #include <time.h>
4988 int main(void) {
4989   timer_create(CLOCK_REALTIME, NULL, NULL);
4990   return clock_gettime(CLOCK_REALTIME, NULL);
4991 }
4992 EOF
4993
4994 if compile_prog "" "" ; then
4995   :
4996 # we need pthread for static linking. use previous pthread test result
4997 elif compile_prog "" "$pthread_lib -lrt" ; then
4998   LIBS="$LIBS -lrt"
4999   libs_qga="$libs_qga -lrt"
5000 fi
5001
5002 # Check whether we need to link libutil for openpty()
5003 cat > $TMPC << EOF
5004 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
5005 int main(void) { return openpty(0, 0, 0, 0, 0); }
5006 EOF
5007
5008 if ! compile_prog "" "" ; then
5009   if compile_prog "" "-lutil" ; then
5010     libs_softmmu="-lutil $libs_softmmu"
5011     libs_tools="-lutil $libs_tools"
5012   fi
5013 fi
5014
5015 ##########################################
5016 # spice probe
5017 if test "$spice" != "no" ; then
5018   cat > $TMPC << EOF
5019 #include <spice.h>
5020 int main(void) { spice_server_new(); return 0; }
5021 EOF
5022   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
5023   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
5024   if $pkg_config --atleast-version=0.12.5 spice-server && \
5025      $pkg_config --atleast-version=0.12.3 spice-protocol && \
5026      compile_prog "$spice_cflags" "$spice_libs" ; then
5027     spice="yes"
5028     libs_softmmu="$libs_softmmu $spice_libs"
5029     QEMU_CFLAGS="$QEMU_CFLAGS $spice_cflags"
5030     spice_protocol_version=$($pkg_config --modversion spice-protocol)
5031     spice_server_version=$($pkg_config --modversion spice-server)
5032   else
5033     if test "$spice" = "yes" ; then
5034       feature_not_found "spice" \
5035           "Install spice-server(>=0.12.5) and spice-protocol(>=0.12.3) devel"
5036     fi
5037     spice="no"
5038   fi
5039 fi
5040
5041 # check for smartcard support
5042 if test "$smartcard" != "no"; then
5043     if $pkg_config --atleast-version=2.5.1 libcacard; then
5044         libcacard_cflags=$($pkg_config --cflags libcacard)
5045         libcacard_libs=$($pkg_config --libs libcacard)
5046         smartcard="yes"
5047     else
5048         if test "$smartcard" = "yes"; then
5049             feature_not_found "smartcard" "Install libcacard devel"
5050         fi
5051         smartcard="no"
5052     fi
5053 fi
5054
5055 # check for libusb
5056 if test "$libusb" != "no" ; then
5057     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
5058         libusb="yes"
5059         libusb_cflags=$($pkg_config --cflags libusb-1.0)
5060         libusb_libs=$($pkg_config --libs libusb-1.0)
5061     else
5062         if test "$libusb" = "yes"; then
5063             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
5064         fi
5065         libusb="no"
5066     fi
5067 fi
5068
5069 # check for usbredirparser for usb network redirection support
5070 if test "$usb_redir" != "no" ; then
5071     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
5072         usb_redir="yes"
5073         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
5074         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
5075     else
5076         if test "$usb_redir" = "yes"; then
5077             feature_not_found "usb-redir" "Install usbredir devel"
5078         fi
5079         usb_redir="no"
5080     fi
5081 fi
5082
5083 ##########################################
5084 # check if we have VSS SDK headers for win
5085
5086 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
5087         test "$vss_win32_sdk" != "no" ; then
5088   case "$vss_win32_sdk" in
5089     "")   vss_win32_include="-isystem $source_path" ;;
5090     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
5091           # handle path with spaces. So we symlink the headers into ".sdk/vss".
5092           vss_win32_include="-isystem $source_path/.sdk/vss"
5093           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
5094           ;;
5095     *)    vss_win32_include="-isystem $vss_win32_sdk"
5096   esac
5097   cat > $TMPC << EOF
5098 #define __MIDL_user_allocate_free_DEFINED__
5099 #include <inc/win2003/vss.h>
5100 int main(void) { return VSS_CTX_BACKUP; }
5101 EOF
5102   if compile_prog "$vss_win32_include" "" ; then
5103     guest_agent_with_vss="yes"
5104     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
5105     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
5106     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
5107   else
5108     if test "$vss_win32_sdk" != "" ; then
5109       echo "ERROR: Please download and install Microsoft VSS SDK:"
5110       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
5111       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
5112       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
5113       echo "ERROR: The headers are extracted in the directory \`inc'."
5114       feature_not_found "VSS support"
5115     fi
5116     guest_agent_with_vss="no"
5117   fi
5118 fi
5119
5120 ##########################################
5121 # lookup Windows platform SDK (if not specified)
5122 # The SDK is needed only to build .tlb (type library) file of guest agent
5123 # VSS provider from the source. It is usually unnecessary because the
5124 # pre-compiled .tlb file is included.
5125
5126 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
5127         test "$guest_agent_with_vss" = "yes" ; then
5128   if test -z "$win_sdk"; then
5129     programfiles="$PROGRAMFILES"
5130     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
5131     if test -n "$programfiles"; then
5132       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
5133     else
5134       feature_not_found "Windows SDK"
5135     fi
5136   elif test "$win_sdk" = "no"; then
5137     win_sdk=""
5138   fi
5139 fi
5140
5141 ##########################################
5142 # check if mingw environment provides a recent ntddscsi.h
5143 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
5144   cat > $TMPC << EOF
5145 #include <windows.h>
5146 #include <ntddscsi.h>
5147 int main(void) {
5148 #if !defined(IOCTL_SCSI_GET_ADDRESS)
5149 #error Missing required ioctl definitions
5150 #endif
5151   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
5152   return addr.Lun;
5153 }
5154 EOF
5155   if compile_prog "" "" ; then
5156     guest_agent_ntddscsi=yes
5157     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
5158   fi
5159 fi
5160
5161 ##########################################
5162 # virgl renderer probe
5163
5164 if test "$virglrenderer" != "no" ; then
5165   cat > $TMPC << EOF
5166 #include <virglrenderer.h>
5167 int main(void) { virgl_renderer_poll(); return 0; }
5168 EOF
5169   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
5170   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
5171   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
5172   if $pkg_config virglrenderer >/dev/null 2>&1 && \
5173      compile_prog "$virgl_cflags" "$virgl_libs" ; then
5174     virglrenderer="yes"
5175   else
5176     if test "$virglrenderer" = "yes" ; then
5177       feature_not_found "virglrenderer"
5178     fi
5179     virglrenderer="no"
5180   fi
5181 fi
5182
5183 ##########################################
5184 # capstone
5185
5186 case "$capstone" in
5187   "" | yes)
5188     if $pkg_config capstone; then
5189       capstone=system
5190     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
5191       capstone=git
5192     elif test -e "${source_path}/capstone/Makefile" ; then
5193       capstone=internal
5194     elif test -z "$capstone" ; then
5195       capstone=no
5196     else
5197       feature_not_found "capstone" "Install capstone devel or git submodule"
5198     fi
5199     ;;
5200
5201   system)
5202     if ! $pkg_config capstone; then
5203       feature_not_found "capstone" "Install capstone devel"
5204     fi
5205     ;;
5206 esac
5207
5208 case "$capstone" in
5209   git | internal)
5210     if test "$capstone" = git; then
5211       git_submodules="${git_submodules} capstone"
5212     fi
5213     mkdir -p capstone
5214     QEMU_CFLAGS="$QEMU_CFLAGS -I\$(SRC_PATH)/capstone/include"
5215     if test "$mingw32" = "yes"; then
5216       LIBCAPSTONE=capstone.lib
5217     else
5218       LIBCAPSTONE=libcapstone.a
5219     fi
5220     libs_cpu="-L\$(BUILD_DIR)/capstone -lcapstone $libs_cpu"
5221     ;;
5222
5223   system)
5224     QEMU_CFLAGS="$QEMU_CFLAGS $($pkg_config --cflags capstone)"
5225     libs_cpu="$($pkg_config --libs capstone) $libs_cpu"
5226     ;;
5227
5228   no)
5229     ;;
5230   *)
5231     error_exit "Unknown state for capstone: $capstone"
5232     ;;
5233 esac
5234
5235 ##########################################
5236 # check if we have fdatasync
5237
5238 fdatasync=no
5239 cat > $TMPC << EOF
5240 #include <unistd.h>
5241 int main(void) {
5242 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
5243 return fdatasync(0);
5244 #else
5245 #error Not supported
5246 #endif
5247 }
5248 EOF
5249 if compile_prog "" "" ; then
5250     fdatasync=yes
5251 fi
5252
5253 ##########################################
5254 # check if we have madvise
5255
5256 madvise=no
5257 cat > $TMPC << EOF
5258 #include <sys/types.h>
5259 #include <sys/mman.h>
5260 #include <stddef.h>
5261 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
5262 EOF
5263 if compile_prog "" "" ; then
5264     madvise=yes
5265 fi
5266
5267 ##########################################
5268 # check if we have posix_madvise
5269
5270 posix_madvise=no
5271 cat > $TMPC << EOF
5272 #include <sys/mman.h>
5273 #include <stddef.h>
5274 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
5275 EOF
5276 if compile_prog "" "" ; then
5277     posix_madvise=yes
5278 fi
5279
5280 ##########################################
5281 # check if we have posix_memalign()
5282
5283 posix_memalign=no
5284 cat > $TMPC << EOF
5285 #include <stdlib.h>
5286 int main(void) {
5287     void *p;
5288     return posix_memalign(&p, 8, 8);
5289 }
5290 EOF
5291 if compile_prog "" "" ; then
5292     posix_memalign=yes
5293 fi
5294
5295 ##########################################
5296 # check if we have posix_syslog
5297
5298 posix_syslog=no
5299 cat > $TMPC << EOF
5300 #include <syslog.h>
5301 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
5302 EOF
5303 if compile_prog "" "" ; then
5304     posix_syslog=yes
5305 fi
5306
5307 ##########################################
5308 # check if we have sem_timedwait
5309
5310 sem_timedwait=no
5311 cat > $TMPC << EOF
5312 #include <semaphore.h>
5313 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
5314 EOF
5315 if compile_prog "" "" ; then
5316     sem_timedwait=yes
5317 fi
5318
5319 ##########################################
5320 # check if we have strchrnul
5321
5322 strchrnul=no
5323 cat > $TMPC << EOF
5324 #include <string.h>
5325 int main(void);
5326 // Use a haystack that the compiler shouldn't be able to constant fold
5327 char *haystack = (char*)&main;
5328 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
5329 EOF
5330 if compile_prog "" "" ; then
5331     strchrnul=yes
5332 fi
5333
5334 #########################################
5335 # check if we have st_atim
5336
5337 st_atim=no
5338 cat > $TMPC << EOF
5339 #include <sys/stat.h>
5340 #include <stddef.h>
5341 int main(void) { return offsetof(struct stat, st_atim); }
5342 EOF
5343 if compile_prog "" "" ; then
5344     st_atim=yes
5345 fi
5346
5347 ##########################################
5348 # check if trace backend exists
5349
5350 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
5351 if test "$?" -ne 0 ; then
5352   error_exit "invalid trace backends" \
5353       "Please choose supported trace backends."
5354 fi
5355
5356 ##########################################
5357 # For 'ust' backend, test if ust headers are present
5358 if have_backend "ust"; then
5359   cat > $TMPC << EOF
5360 #include <lttng/tracepoint.h>
5361 int main(void) { return 0; }
5362 EOF
5363   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
5364     if $pkg_config lttng-ust --exists; then
5365       lttng_ust_libs=$($pkg_config --libs lttng-ust)
5366     else
5367       lttng_ust_libs="-llttng-ust -ldl"
5368     fi
5369     if $pkg_config liburcu-bp --exists; then
5370       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
5371     else
5372       urcu_bp_libs="-lurcu-bp"
5373     fi
5374
5375     LIBS="$lttng_ust_libs $urcu_bp_libs $LIBS"
5376     libs_qga="$lttng_ust_libs $urcu_bp_libs $libs_qga"
5377   else
5378     error_exit "Trace backend 'ust' missing lttng-ust header files"
5379   fi
5380 fi
5381
5382 ##########################################
5383 # For 'dtrace' backend, test if 'dtrace' command is present
5384 if have_backend "dtrace"; then
5385   if ! has 'dtrace' ; then
5386     error_exit "dtrace command is not found in PATH $PATH"
5387   fi
5388   trace_backend_stap="no"
5389   if has 'stap' ; then
5390     trace_backend_stap="yes"
5391   fi
5392 fi
5393
5394 ##########################################
5395 # check and set a backend for coroutine
5396
5397 # We prefer ucontext, but it's not always possible. The fallback
5398 # is sigcontext. On Windows the only valid backend is the Windows
5399 # specific one.
5400
5401 ucontext_works=no
5402 if test "$darwin" != "yes"; then
5403   cat > $TMPC << EOF
5404 #include <ucontext.h>
5405 #ifdef __stub_makecontext
5406 #error Ignoring glibc stub makecontext which will always fail
5407 #endif
5408 int main(void) { makecontext(0, 0, 0); return 0; }
5409 EOF
5410   if compile_prog "" "" ; then
5411     ucontext_works=yes
5412   fi
5413 fi
5414
5415 if test "$coroutine" = ""; then
5416   if test "$mingw32" = "yes"; then
5417     coroutine=win32
5418   elif test "$ucontext_works" = "yes"; then
5419     coroutine=ucontext
5420   else
5421     coroutine=sigaltstack
5422   fi
5423 else
5424   case $coroutine in
5425   windows)
5426     if test "$mingw32" != "yes"; then
5427       error_exit "'windows' coroutine backend only valid for Windows"
5428     fi
5429     # Unfortunately the user visible backend name doesn't match the
5430     # coroutine-*.c filename for this case, so we have to adjust it here.
5431     coroutine=win32
5432     ;;
5433   ucontext)
5434     if test "$ucontext_works" != "yes"; then
5435       feature_not_found "ucontext"
5436     fi
5437     ;;
5438   sigaltstack)
5439     if test "$mingw32" = "yes"; then
5440       error_exit "only the 'windows' coroutine backend is valid for Windows"
5441     fi
5442     ;;
5443   *)
5444     error_exit "unknown coroutine backend $coroutine"
5445     ;;
5446   esac
5447 fi
5448
5449 if test "$coroutine_pool" = ""; then
5450   coroutine_pool=yes
5451 fi
5452
5453 if test "$debug_stack_usage" = "yes"; then
5454   if test "$coroutine_pool" = "yes"; then
5455     echo "WARN: disabling coroutine pool for stack usage debugging"
5456     coroutine_pool=no
5457   fi
5458 fi
5459
5460
5461 ##########################################
5462 # check if we have open_by_handle_at
5463
5464 open_by_handle_at=no
5465 cat > $TMPC << EOF
5466 #include <fcntl.h>
5467 #if !defined(AT_EMPTY_PATH)
5468 # error missing definition
5469 #else
5470 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
5471 #endif
5472 EOF
5473 if compile_prog "" "" ; then
5474     open_by_handle_at=yes
5475 fi
5476
5477 ########################################
5478 # check if we have linux/magic.h
5479
5480 linux_magic_h=no
5481 cat > $TMPC << EOF
5482 #include <linux/magic.h>
5483 int main(void) {
5484   return 0;
5485 }
5486 EOF
5487 if compile_prog "" "" ; then
5488     linux_magic_h=yes
5489 fi
5490
5491 ########################################
5492 # check whether we can disable warning option with a pragma (this is needed
5493 # to silence warnings in the headers of some versions of external libraries).
5494 # This test has to be compiled with -Werror as otherwise an unknown pragma is
5495 # only a warning.
5496 #
5497 # If we can't selectively disable warning in the code, disable -Werror so that
5498 # the build doesn't fail anyway.
5499
5500 pragma_disable_unused_but_set=no
5501 cat > $TMPC << EOF
5502 #pragma GCC diagnostic push
5503 #pragma GCC diagnostic ignored "-Wstrict-prototypes"
5504 #pragma GCC diagnostic pop
5505
5506 int main(void) {
5507     return 0;
5508 }
5509 EOF
5510 if compile_prog "-Werror" "" ; then
5511     pragma_diagnostic_available=yes
5512 else
5513     werror=no
5514 fi
5515
5516 ########################################
5517 # check if we have valgrind/valgrind.h
5518
5519 valgrind_h=no
5520 cat > $TMPC << EOF
5521 #include <valgrind/valgrind.h>
5522 int main(void) {
5523   return 0;
5524 }
5525 EOF
5526 if compile_prog "" "" ; then
5527     valgrind_h=yes
5528 fi
5529
5530 ########################################
5531 # check if environ is declared
5532
5533 has_environ=no
5534 cat > $TMPC << EOF
5535 #include <unistd.h>
5536 int main(void) {
5537     environ = 0;
5538     return 0;
5539 }
5540 EOF
5541 if compile_prog "" "" ; then
5542     has_environ=yes
5543 fi
5544
5545 ########################################
5546 # check if cpuid.h is usable.
5547
5548 cat > $TMPC << EOF
5549 #include <cpuid.h>
5550 int main(void) {
5551     unsigned a, b, c, d;
5552     int max = __get_cpuid_max(0, 0);
5553
5554     if (max >= 1) {
5555         __cpuid(1, a, b, c, d);
5556     }
5557
5558     if (max >= 7) {
5559         __cpuid_count(7, 0, a, b, c, d);
5560     }
5561
5562     return 0;
5563 }
5564 EOF
5565 if compile_prog "" "" ; then
5566     cpuid_h=yes
5567 fi
5568
5569 ##########################################
5570 # avx2 optimization requirement check
5571 #
5572 # There is no point enabling this if cpuid.h is not usable,
5573 # since we won't be able to select the new routines.
5574
5575 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
5576   cat > $TMPC << EOF
5577 #pragma GCC push_options
5578 #pragma GCC target("avx2")
5579 #include <cpuid.h>
5580 #include <immintrin.h>
5581 static int bar(void *a) {
5582     __m256i x = *(__m256i *)a;
5583     return _mm256_testz_si256(x, x);
5584 }
5585 int main(int argc, char *argv[]) { return bar(argv[0]); }
5586 EOF
5587   if compile_object "" ; then
5588     avx2_opt="yes"
5589   else
5590     avx2_opt="no"
5591   fi
5592 fi
5593
5594 ##########################################
5595 # avx512f optimization requirement check
5596 #
5597 # There is no point enabling this if cpuid.h is not usable,
5598 # since we won't be able to select the new routines.
5599 # by default, it is turned off.
5600 # if user explicitly want to enable it, check environment
5601
5602 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
5603   cat > $TMPC << EOF
5604 #pragma GCC push_options
5605 #pragma GCC target("avx512f")
5606 #include <cpuid.h>
5607 #include <immintrin.h>
5608 static int bar(void *a) {
5609     __m512i x = *(__m512i *)a;
5610     return _mm512_test_epi64_mask(x, x);
5611 }
5612 int main(int argc, char *argv[])
5613 {
5614         return bar(argv[0]);
5615 }
5616 EOF
5617   if ! compile_object "" ; then
5618     avx512f_opt="no"
5619   fi
5620 else
5621   avx512f_opt="no"
5622 fi
5623
5624 ########################################
5625 # check if __[u]int128_t is usable.
5626
5627 int128=no
5628 cat > $TMPC << EOF
5629 __int128_t a;
5630 __uint128_t b;
5631 int main (void) {
5632   a = a + b;
5633   b = a * b;
5634   a = a * a;
5635   return 0;
5636 }
5637 EOF
5638 if compile_prog "" "" ; then
5639     int128=yes
5640 fi
5641
5642 #########################################
5643 # See if 128-bit atomic operations are supported.
5644
5645 atomic128=no
5646 if test "$int128" = "yes"; then
5647   cat > $TMPC << EOF
5648 int main(void)
5649 {
5650   unsigned __int128 x = 0, y = 0;
5651   y = __atomic_load_16(&x, 0);
5652   __atomic_store_16(&x, y, 0);
5653   __atomic_compare_exchange_16(&x, &y, x, 0, 0, 0);
5654   return 0;
5655 }
5656 EOF
5657   if compile_prog "" "" ; then
5658     atomic128=yes
5659   fi
5660 fi
5661
5662 cmpxchg128=no
5663 if test "$int128" = yes && test "$atomic128" = no; then
5664   cat > $TMPC << EOF
5665 int main(void)
5666 {
5667   unsigned __int128 x = 0, y = 0;
5668   __sync_val_compare_and_swap_16(&x, y, x);
5669   return 0;
5670 }
5671 EOF
5672   if compile_prog "" "" ; then
5673     cmpxchg128=yes
5674   fi
5675 fi
5676
5677 #########################################
5678 # See if 64-bit atomic operations are supported.
5679 # Note that without __atomic builtins, we can only
5680 # assume atomic loads/stores max at pointer size.
5681
5682 cat > $TMPC << EOF
5683 #include <stdint.h>
5684 int main(void)
5685 {
5686   uint64_t x = 0, y = 0;
5687 #ifdef __ATOMIC_RELAXED
5688   y = __atomic_load_8(&x, 0);
5689   __atomic_store_8(&x, y, 0);
5690   __atomic_compare_exchange_8(&x, &y, x, 0, 0, 0);
5691   __atomic_exchange_8(&x, y, 0);
5692   __atomic_fetch_add_8(&x, y, 0);
5693 #else
5694   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
5695   __sync_lock_test_and_set(&x, y);
5696   __sync_val_compare_and_swap(&x, y, 0);
5697   __sync_fetch_and_add(&x, y);
5698 #endif
5699   return 0;
5700 }
5701 EOF
5702 if compile_prog "" "" ; then
5703   atomic64=yes
5704 fi
5705
5706 #########################################
5707 # See if --dynamic-list is supported by the linker
5708 ld_dynamic_list="no"
5709 if test "$static" = "no" ; then
5710     cat > $TMPTXT <<EOF
5711 {
5712   foo;
5713 };
5714 EOF
5715
5716     cat > $TMPC <<EOF
5717 #include <stdio.h>
5718 void foo(void);
5719
5720 void foo(void)
5721 {
5722   printf("foo\n");
5723 }
5724
5725 int main(void)
5726 {
5727   foo();
5728   return 0;
5729 }
5730 EOF
5731
5732     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
5733         ld_dynamic_list="yes"
5734     fi
5735 fi
5736
5737 #########################################
5738 # See if -exported_symbols_list is supported by the linker
5739
5740 ld_exported_symbols_list="no"
5741 if test "$static" = "no" ; then
5742     cat > $TMPTXT <<EOF
5743   _foo
5744 EOF
5745
5746     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
5747         ld_exported_symbols_list="yes"
5748     fi
5749 fi
5750
5751 if  test "$plugins" = "yes" &&
5752     test "$ld_dynamic_list" = "no" &&
5753     test "$ld_exported_symbols_list" = "no" ; then
5754   error_exit \
5755       "Plugin support requires dynamic linking and specifying a set of symbols " \
5756       "that are exported to plugins. Unfortunately your linker doesn't " \
5757       "support the flag (--dynamic-list or -exported_symbols_list) used " \
5758       "for this purpose. You can't build with --static."
5759 fi
5760
5761 ########################################
5762 # See if 16-byte vector operations are supported.
5763 # Even without a vector unit the compiler may expand these.
5764 # There is a bug in old GCC for PPC that crashes here.
5765 # Unfortunately it's the system compiler for Centos 7.
5766
5767 cat > $TMPC << EOF
5768 typedef unsigned char U1 __attribute__((vector_size(16)));
5769 typedef unsigned short U2 __attribute__((vector_size(16)));
5770 typedef unsigned int U4 __attribute__((vector_size(16)));
5771 typedef unsigned long long U8 __attribute__((vector_size(16)));
5772 typedef signed char S1 __attribute__((vector_size(16)));
5773 typedef signed short S2 __attribute__((vector_size(16)));
5774 typedef signed int S4 __attribute__((vector_size(16)));
5775 typedef signed long long S8 __attribute__((vector_size(16)));
5776 static U1 a1, b1;
5777 static U2 a2, b2;
5778 static U4 a4, b4;
5779 static U8 a8, b8;
5780 static S1 c1;
5781 static S2 c2;
5782 static S4 c4;
5783 static S8 c8;
5784 static int i;
5785 void helper(void *d, void *a, int shift, int i);
5786 void helper(void *d, void *a, int shift, int i)
5787 {
5788   *(U1 *)(d + i) = *(U1 *)(a + i) << shift;
5789   *(U2 *)(d + i) = *(U2 *)(a + i) << shift;
5790   *(U4 *)(d + i) = *(U4 *)(a + i) << shift;
5791   *(U8 *)(d + i) = *(U8 *)(a + i) << shift;
5792 }
5793 int main(void)
5794 {
5795   a1 += b1; a2 += b2; a4 += b4; a8 += b8;
5796   a1 -= b1; a2 -= b2; a4 -= b4; a8 -= b8;
5797   a1 *= b1; a2 *= b2; a4 *= b4; a8 *= b8;
5798   a1 &= b1; a2 &= b2; a4 &= b4; a8 &= b8;
5799   a1 |= b1; a2 |= b2; a4 |= b4; a8 |= b8;
5800   a1 ^= b1; a2 ^= b2; a4 ^= b4; a8 ^= b8;
5801   a1 <<= i; a2 <<= i; a4 <<= i; a8 <<= i;
5802   a1 >>= i; a2 >>= i; a4 >>= i; a8 >>= i;
5803   c1 >>= i; c2 >>= i; c4 >>= i; c8 >>= i;
5804   return 0;
5805 }
5806 EOF
5807
5808 vector16=no
5809 if compile_prog "" "" ; then
5810   vector16=yes
5811 fi
5812
5813 ########################################
5814 # See if __attribute__((alias)) is supported.
5815 # This false for Xcode 9, but has been remedied for Xcode 10.
5816 # Unfortunately, travis uses Xcode 9 by default.
5817
5818 attralias=no
5819 cat > $TMPC << EOF
5820 int x = 1;
5821 extern const int y __attribute__((alias("x")));
5822 int main(void) { return 0; }
5823 EOF
5824 if compile_prog "" "" ; then
5825     attralias=yes
5826 fi
5827
5828 ########################################
5829 # check if getauxval is available.
5830
5831 getauxval=no
5832 cat > $TMPC << EOF
5833 #include <sys/auxv.h>
5834 int main(void) {
5835   return getauxval(AT_HWCAP) == 0;
5836 }
5837 EOF
5838 if compile_prog "" "" ; then
5839     getauxval=yes
5840 fi
5841
5842 ########################################
5843 # check if ccache is interfering with
5844 # semantic analysis of macros
5845
5846 unset CCACHE_CPP2
5847 ccache_cpp2=no
5848 cat > $TMPC << EOF
5849 static const int Z = 1;
5850 #define fn() ({ Z; })
5851 #define TAUT(X) ((X) == Z)
5852 #define PAREN(X, Y) (X == Y)
5853 #define ID(X) (X)
5854 int main(int argc, char *argv[])
5855 {
5856     int x = 0, y = 0;
5857     x = ID(x);
5858     x = fn();
5859     fn();
5860     if (PAREN(x, y)) return 0;
5861     if (TAUT(Z)) return 0;
5862     return 0;
5863 }
5864 EOF
5865
5866 if ! compile_object "-Werror"; then
5867     ccache_cpp2=yes
5868 fi
5869
5870 #################################################
5871 # clang does not support glibc + FORTIFY_SOURCE.
5872
5873 if test "$fortify_source" != "no"; then
5874   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
5875     fortify_source="no";
5876   elif test -n "$cxx" && has $cxx &&
5877        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
5878     fortify_source="no";
5879   else
5880     fortify_source="yes"
5881   fi
5882 fi
5883
5884 ###############################################
5885 # Check if copy_file_range is provided by glibc
5886 have_copy_file_range=no
5887 cat > $TMPC << EOF
5888 #include <unistd.h>
5889 int main(void) {
5890   copy_file_range(0, NULL, 0, NULL, 0, 0);
5891   return 0;
5892 }
5893 EOF
5894 if compile_prog "" "" ; then
5895     have_copy_file_range=yes
5896 fi
5897
5898 ##########################################
5899 # check if struct fsxattr is available via linux/fs.h
5900
5901 have_fsxattr=no
5902 cat > $TMPC << EOF
5903 #include <linux/fs.h>
5904 struct fsxattr foo;
5905 int main(void) {
5906   return 0;
5907 }
5908 EOF
5909 if compile_prog "" "" ; then
5910     have_fsxattr=yes
5911 fi
5912
5913 ##########################################
5914 # check for usable membarrier system call
5915 if test "$membarrier" = "yes"; then
5916     have_membarrier=no
5917     if test "$mingw32" = "yes" ; then
5918         have_membarrier=yes
5919     elif test "$linux" = "yes" ; then
5920         cat > $TMPC << EOF
5921     #include <linux/membarrier.h>
5922     #include <sys/syscall.h>
5923     #include <unistd.h>
5924     #include <stdlib.h>
5925     int main(void) {
5926         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
5927         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
5928         exit(0);
5929     }
5930 EOF
5931         if compile_prog "" "" ; then
5932             have_membarrier=yes
5933         fi
5934     fi
5935     if test "$have_membarrier" = "no"; then
5936       feature_not_found "membarrier" "membarrier system call not available"
5937     fi
5938 else
5939     # Do not enable it by default even for Mingw32, because it doesn't
5940     # work on Wine.
5941     membarrier=no
5942 fi
5943
5944 ##########################################
5945 # check if rtnetlink.h exists and is useful
5946 have_rtnetlink=no
5947 cat > $TMPC << EOF
5948 #include <linux/rtnetlink.h>
5949 int main(void) {
5950   return IFLA_PROTO_DOWN;
5951 }
5952 EOF
5953 if compile_prog "" "" ; then
5954     have_rtnetlink=yes
5955 fi
5956
5957 ##########################################
5958 # check for usable AF_VSOCK environment
5959 have_af_vsock=no
5960 cat > $TMPC << EOF
5961 #include <errno.h>
5962 #include <sys/types.h>
5963 #include <sys/socket.h>
5964 #if !defined(AF_VSOCK)
5965 # error missing AF_VSOCK flag
5966 #endif
5967 #include <linux/vm_sockets.h>
5968 int main(void) {
5969     int sock, ret;
5970     struct sockaddr_vm svm;
5971     socklen_t len = sizeof(svm);
5972     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
5973     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
5974     if ((ret == -1) && (errno == ENOTCONN)) {
5975         return 0;
5976     }
5977     return -1;
5978 }
5979 EOF
5980 if compile_prog "" "" ; then
5981     have_af_vsock=yes
5982 fi
5983
5984 ##########################################
5985 # check for usable AF_ALG environment
5986 have_afalg=no
5987 cat > $TMPC << EOF
5988 #include <errno.h>
5989 #include <sys/types.h>
5990 #include <sys/socket.h>
5991 #include <linux/if_alg.h>
5992 int main(void) {
5993     int sock;
5994     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
5995     return sock;
5996 }
5997 EOF
5998 if compile_prog "" "" ; then
5999     have_afalg=yes
6000 fi
6001 if test "$crypto_afalg" = "yes"
6002 then
6003     if test "$have_afalg" != "yes"
6004     then
6005         error_exit "AF_ALG requested but could not be detected"
6006     fi
6007 fi
6008
6009
6010 #################################################
6011 # Check to see if we have the Hypervisor framework
6012 if [ "$darwin" = "yes" ] ; then
6013   cat > $TMPC << EOF
6014 #include <Hypervisor/hv.h>
6015 int main() { return 0;}
6016 EOF
6017   if ! compile_object ""; then
6018     hvf='no'
6019   else
6020     hvf='yes'
6021     QEMU_LDFLAGS="-framework Hypervisor $QEMU_LDFLAGS"
6022   fi
6023 fi
6024
6025 #################################################
6026 # Sparc implicitly links with --relax, which is
6027 # incompatible with -r, so --no-relax should be
6028 # given. It does no harm to give it on other
6029 # platforms too.
6030
6031 # Note: the prototype is needed since QEMU_CFLAGS
6032 #       contains -Wmissing-prototypes
6033 cat > $TMPC << EOF
6034 extern int foo(void);
6035 int foo(void) { return 0; }
6036 EOF
6037 if ! compile_object ""; then
6038   error_exit "Failed to compile object file for LD_REL_FLAGS test"
6039 fi
6040 for i in '-Wl,-r -Wl,--no-relax' -Wl,-r -r; do
6041   if do_cc -nostdlib $i -o $TMPMO $TMPO; then
6042     LD_REL_FLAGS=$i
6043     break
6044   fi
6045 done
6046 if test "$modules" = "yes" && test "$LD_REL_FLAGS" = ""; then
6047   feature_not_found "modules" "Cannot find how to build relocatable objects"
6048 fi
6049
6050 ##########################################
6051 # check for sysmacros.h
6052
6053 have_sysmacros=no
6054 cat > $TMPC << EOF
6055 #include <sys/sysmacros.h>
6056 int main(void) {
6057     return makedev(0, 0);
6058 }
6059 EOF
6060 if compile_prog "" "" ; then
6061     have_sysmacros=yes
6062 fi
6063
6064 ##########################################
6065 # Veritas HyperScale block driver VxHS
6066 # Check if libvxhs is installed
6067
6068 if test "$vxhs" != "no" ; then
6069   cat > $TMPC <<EOF
6070 #include <stdint.h>
6071 #include <qnio/qnio_api.h>
6072
6073 void *vxhs_callback;
6074
6075 int main(void) {
6076     iio_init(QNIO_VERSION, vxhs_callback);
6077     return 0;
6078 }
6079 EOF
6080   vxhs_libs="-lvxhs -lssl"
6081   if compile_prog "" "$vxhs_libs" ; then
6082     vxhs=yes
6083   else
6084     if test "$vxhs" = "yes" ; then
6085       feature_not_found "vxhs block device" "Install libvxhs See github"
6086     fi
6087     vxhs=no
6088   fi
6089 fi
6090
6091 ##########################################
6092 # check for _Static_assert()
6093
6094 have_static_assert=no
6095 cat > $TMPC << EOF
6096 _Static_assert(1, "success");
6097 int main(void) {
6098     return 0;
6099 }
6100 EOF
6101 if compile_prog "" "" ; then
6102     have_static_assert=yes
6103 fi
6104
6105 ##########################################
6106 # check for utmpx.h, it is missing e.g. on OpenBSD
6107
6108 have_utmpx=no
6109 cat > $TMPC << EOF
6110 #include <utmpx.h>
6111 struct utmpx user_info;
6112 int main(void) {
6113     return 0;
6114 }
6115 EOF
6116 if compile_prog "" "" ; then
6117     have_utmpx=yes
6118 fi
6119
6120 ##########################################
6121 # check for getrandom()
6122
6123 have_getrandom=no
6124 cat > $TMPC << EOF
6125 #include <sys/random.h>
6126 int main(void) {
6127     return getrandom(0, 0, GRND_NONBLOCK);
6128 }
6129 EOF
6130 if compile_prog "" "" ; then
6131     have_getrandom=yes
6132 fi
6133
6134 ##########################################
6135 # checks for sanitizers
6136
6137 have_asan=no
6138 have_ubsan=no
6139 have_asan_iface_h=no
6140 have_asan_iface_fiber=no
6141
6142 if test "$sanitizers" = "yes" ; then
6143   write_c_skeleton
6144   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
6145       have_asan=yes
6146   fi
6147
6148   # we could use a simple skeleton for flags checks, but this also
6149   # detect the static linking issue of ubsan, see also:
6150   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
6151   cat > $TMPC << EOF
6152 #include <stdlib.h>
6153 int main(void) {
6154     void *tmp = malloc(10);
6155     return *(int *)(tmp + 2);
6156 }
6157 EOF
6158   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
6159       have_ubsan=yes
6160   fi
6161
6162   if check_include "sanitizer/asan_interface.h" ; then
6163       have_asan_iface_h=yes
6164   fi
6165
6166   cat > $TMPC << EOF
6167 #include <sanitizer/asan_interface.h>
6168 int main(void) {
6169   __sanitizer_start_switch_fiber(0, 0, 0);
6170   return 0;
6171 }
6172 EOF
6173   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
6174       have_asan_iface_fiber=yes
6175   fi
6176 fi
6177
6178 ##########################################
6179 # checks for fuzzer
6180 if test "$fuzzing" = "yes" ; then
6181   write_c_fuzzer_skeleton
6182   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address,fuzzer" ""; then
6183       have_fuzzer=yes
6184   fi
6185 fi
6186
6187 ##########################################
6188 # check for libpmem
6189
6190 if test "$libpmem" != "no"; then
6191         if $pkg_config --exists "libpmem"; then
6192                 libpmem="yes"
6193                 libpmem_libs=$($pkg_config --libs libpmem)
6194                 libpmem_cflags=$($pkg_config --cflags libpmem)
6195                 libs_softmmu="$libs_softmmu $libpmem_libs"
6196                 QEMU_CFLAGS="$QEMU_CFLAGS $libpmem_cflags"
6197         else
6198                 if test "$libpmem" = "yes" ; then
6199                         feature_not_found "libpmem" "Install nvml or pmdk"
6200                 fi
6201                 libpmem="no"
6202         fi
6203 fi
6204
6205 ##########################################
6206 # check for slirp
6207
6208 # slirp is only required when building softmmu targets
6209 if test -z "$slirp" -a "$softmmu" != "yes" ; then
6210     slirp="no"
6211 fi
6212
6213 case "$slirp" in
6214   "" | yes)
6215     if $pkg_config slirp; then
6216       slirp=system
6217     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
6218       slirp=git
6219     elif test -e "${source_path}/slirp/Makefile" ; then
6220       slirp=internal
6221     elif test -z "$slirp" ; then
6222       slirp=no
6223     else
6224       feature_not_found "slirp" "Install slirp devel or git submodule"
6225     fi
6226     ;;
6227
6228   system)
6229     if ! $pkg_config slirp; then
6230       feature_not_found "slirp" "Install slirp devel"
6231     fi
6232     ;;
6233 esac
6234
6235 case "$slirp" in
6236   git | internal)
6237     if test "$slirp" = git; then
6238       git_submodules="${git_submodules} slirp"
6239     fi
6240     mkdir -p slirp
6241     slirp_cflags="-I\$(SRC_PATH)/slirp/src -I\$(BUILD_DIR)/slirp/src"
6242     slirp_libs="-L\$(BUILD_DIR)/slirp -lslirp"
6243     if test "$mingw32" = "yes" ; then
6244       slirp_libs="$slirp_libs -lws2_32 -liphlpapi"
6245     fi
6246     ;;
6247
6248   system)
6249     slirp_version=$($pkg_config --modversion slirp 2>/dev/null)
6250     slirp_cflags=$($pkg_config --cflags slirp 2>/dev/null)
6251     slirp_libs=$($pkg_config --libs slirp 2>/dev/null)
6252     ;;
6253
6254   no)
6255     ;;
6256   *)
6257     error_exit "Unknown state for slirp: $slirp"
6258     ;;
6259 esac
6260
6261
6262 ##########################################
6263 # End of CC checks
6264 # After here, no more $cc or $ld runs
6265
6266 write_c_skeleton
6267
6268 if test "$gcov" = "yes" ; then
6269   QEMU_CFLAGS="-fprofile-arcs -ftest-coverage -g $QEMU_CFLAGS"
6270   QEMU_LDFLAGS="-fprofile-arcs -ftest-coverage $QEMU_LDFLAGS"
6271 elif test "$fortify_source" = "yes" ; then
6272   CFLAGS="-O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $CFLAGS"
6273 elif test "$debug" = "no"; then
6274   CFLAGS="-O2 $CFLAGS"
6275 fi
6276
6277 if test "$have_asan" = "yes"; then
6278   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
6279   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
6280   if test "$have_asan_iface_h" = "no" ; then
6281       echo "ASAN build enabled, but ASAN header missing." \
6282            "Without code annotation, the report may be inferior."
6283   elif test "$have_asan_iface_fiber" = "no" ; then
6284       echo "ASAN build enabled, but ASAN header is too old." \
6285            "Without code annotation, the report may be inferior."
6286   fi
6287 fi
6288 if test "$have_ubsan" = "yes"; then
6289   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
6290   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
6291 fi
6292
6293 ##########################################
6294 # Do we have libnfs
6295 if test "$libnfs" != "no" ; then
6296   if $pkg_config --atleast-version=1.9.3 libnfs; then
6297     libnfs="yes"
6298     libnfs_libs=$($pkg_config --libs libnfs)
6299   else
6300     if test "$libnfs" = "yes" ; then
6301       feature_not_found "libnfs" "Install libnfs devel >= 1.9.3"
6302     fi
6303     libnfs="no"
6304   fi
6305 fi
6306
6307 ##########################################
6308 # Do we have libudev
6309 if test "$libudev" != "no" ; then
6310   if $pkg_config libudev && test "$static" != "yes"; then
6311     libudev="yes"
6312     libudev_libs=$($pkg_config --libs libudev)
6313   else
6314     libudev="no"
6315   fi
6316 fi
6317
6318 # Now we've finished running tests it's OK to add -Werror to the compiler flags
6319 if test "$werror" = "yes"; then
6320     QEMU_CFLAGS="-Werror $QEMU_CFLAGS"
6321 fi
6322
6323 if test "$solaris" = "no" ; then
6324     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
6325         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
6326     fi
6327 fi
6328
6329 # test if pod2man has --utf8 option
6330 if pod2man --help | grep -q utf8; then
6331     POD2MAN="pod2man --utf8"
6332 else
6333     POD2MAN="pod2man"
6334 fi
6335
6336 # Use ASLR, no-SEH and DEP if available
6337 if test "$mingw32" = "yes" ; then
6338     for flag in --dynamicbase --no-seh --nxcompat; do
6339         if ld_has $flag ; then
6340             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
6341         fi
6342     done
6343 fi
6344
6345 # Disable OpenBSD W^X if available
6346 if test "$tcg" = "yes" && test "$targetos" = "OpenBSD"; then
6347     cat > $TMPC <<EOF
6348     int main(void) { return 0; }
6349 EOF
6350     wx_ldflags="-Wl,-z,wxneeded"
6351     if compile_prog "" "$wx_ldflags"; then
6352         QEMU_LDFLAGS="$QEMU_LDFLAGS $wx_ldflags"
6353     fi
6354 fi
6355
6356 qemu_confdir=$sysconfdir$confsuffix
6357 qemu_moddir=$libdir$confsuffix
6358 qemu_datadir=$datadir$confsuffix
6359 qemu_localedir="$datadir/locale"
6360 qemu_icondir="$datadir/icons"
6361 qemu_desktopdir="$datadir/applications"
6362
6363 # We can only support ivshmem if we have eventfd
6364 if [ "$eventfd" = "yes" ]; then
6365   ivshmem=yes
6366 fi
6367
6368 tools=""
6369 if test "$want_tools" = "yes" ; then
6370   tools="qemu-img\$(EXESUF) qemu-io\$(EXESUF) qemu-edid\$(EXESUF) $tools"
6371   if [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" ] ; then
6372     tools="qemu-nbd\$(EXESUF) qemu-storage-daemon\$(EXESUF) $tools"
6373   fi
6374   if [ "$ivshmem" = "yes" ]; then
6375     tools="ivshmem-client\$(EXESUF) ivshmem-server\$(EXESUF) $tools"
6376   fi
6377   if [ "$curl" = "yes" ]; then
6378       tools="elf2dmp\$(EXESUF) $tools"
6379   fi
6380 fi
6381 if test "$softmmu" = yes ; then
6382   if test "$linux" = yes; then
6383     if test "$virtfs" != no && test "$cap_ng" = yes && test "$attr" = yes ; then
6384       virtfs=yes
6385       tools="$tools fsdev/virtfs-proxy-helper\$(EXESUF)"
6386     else
6387       if test "$virtfs" = yes; then
6388         error_exit "VirtFS requires libcap-ng devel and libattr devel"
6389       fi
6390       virtfs=no
6391     fi
6392     if test "$mpath" != no && test "$mpathpersist" = yes ; then
6393       mpath=yes
6394     else
6395       if test "$mpath" = yes; then
6396         error_exit "Multipath requires libmpathpersist devel"
6397       fi
6398       mpath=no
6399     fi
6400     tools="$tools scsi/qemu-pr-helper\$(EXESUF)"
6401   else
6402     if test "$virtfs" = yes; then
6403       error_exit "VirtFS is supported only on Linux"
6404     fi
6405     virtfs=no
6406     if test "$mpath" = yes; then
6407       error_exit "Multipath is supported only on Linux"
6408     fi
6409     mpath=no
6410   fi
6411   if test "$xkbcommon" = "yes"; then
6412     tools="qemu-keymap\$(EXESUF) $tools"
6413   fi
6414 fi
6415
6416 # Probe for guest agent support/options
6417
6418 if [ "$guest_agent" != "no" ]; then
6419   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
6420       guest_agent=no
6421   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
6422       tools="qemu-ga\$(EXESUF) $tools"
6423       guest_agent=yes
6424   elif [ "$guest_agent" != yes ]; then
6425       guest_agent=no
6426   else
6427       error_exit "Guest agent is not supported on this platform"
6428   fi
6429 fi
6430
6431 # Guest agent Window MSI  package
6432
6433 if test "$guest_agent" != yes; then
6434   if test "$guest_agent_msi" = yes; then
6435     error_exit "MSI guest agent package requires guest agent enabled"
6436   fi
6437   guest_agent_msi=no
6438 elif test "$mingw32" != "yes"; then
6439   if test "$guest_agent_msi" = "yes"; then
6440     error_exit "MSI guest agent package is available only for MinGW Windows cross-compilation"
6441   fi
6442   guest_agent_msi=no
6443 elif ! has wixl; then
6444   if test "$guest_agent_msi" = "yes"; then
6445     error_exit "MSI guest agent package requires wixl tool installed ( usually from msitools package )"
6446   fi
6447   guest_agent_msi=no
6448 else
6449   # we support qemu-ga, mingw32, and wixl: default to MSI enabled if it wasn't
6450   # disabled explicitly
6451   if test "$guest_agent_msi" != "no"; then
6452     guest_agent_msi=yes
6453   fi
6454 fi
6455
6456 if test "$guest_agent_msi" = "yes"; then
6457   if test "$guest_agent_with_vss" = "yes"; then
6458     QEMU_GA_MSI_WITH_VSS="-D InstallVss"
6459   fi
6460
6461   if test "$QEMU_GA_MANUFACTURER" = ""; then
6462     QEMU_GA_MANUFACTURER=QEMU
6463   fi
6464
6465   if test "$QEMU_GA_DISTRO" = ""; then
6466     QEMU_GA_DISTRO=Linux
6467   fi
6468
6469   if test "$QEMU_GA_VERSION" = ""; then
6470       QEMU_GA_VERSION=$(cat $source_path/VERSION)
6471   fi
6472
6473   QEMU_GA_MSI_MINGW_DLL_PATH="-D Mingw_dlls=$($pkg_config --variable=prefix glib-2.0)/bin"
6474
6475   case "$cpu" in
6476   x86_64)
6477     QEMU_GA_MSI_ARCH="-a x64 -D Arch=64"
6478     ;;
6479   i386)
6480     QEMU_GA_MSI_ARCH="-D Arch=32"
6481     ;;
6482   *)
6483     error_exit "CPU $cpu not supported for building installation package"
6484     ;;
6485   esac
6486 fi
6487
6488 # Mac OS X ships with a broken assembler
6489 roms=
6490 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
6491         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
6492         test "$softmmu" = yes ; then
6493     # Different host OS linkers have different ideas about the name of the ELF
6494     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
6495     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
6496     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
6497         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
6498             ld_i386_emulation="$emu"
6499             roms="optionrom"
6500             break
6501         fi
6502     done
6503 fi
6504
6505 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
6506 if test "$cpu" = "s390x" ; then
6507   write_c_skeleton
6508   if compile_prog "-march=z900" ""; then
6509     roms="$roms s390-ccw"
6510   fi
6511 fi
6512
6513 # Probe for the need for relocating the user-only binary.
6514 if ( [ "$linux_user" = yes ] || [ "$bsd_user" = yes ] ) && [ "$pie" = no ]; then
6515   textseg_addr=
6516   case "$cpu" in
6517     arm | i386 | ppc* | s390* | sparc* | x86_64 | x32)
6518       # ??? Rationale for choosing this address
6519       textseg_addr=0x60000000
6520       ;;
6521     mips)
6522       # A 256M aligned address, high in the address space, with enough
6523       # room for the code_gen_buffer above it before the stack.
6524       textseg_addr=0x60000000
6525       ;;
6526   esac
6527   if [ -n "$textseg_addr" ]; then
6528     cat > $TMPC <<EOF
6529     int main(void) { return 0; }
6530 EOF
6531     textseg_ldflags="-Wl,-Ttext-segment=$textseg_addr"
6532     if ! compile_prog "" "$textseg_ldflags"; then
6533       # In case ld does not support -Ttext-segment, edit the default linker
6534       # script via sed to set the .text start addr.  This is needed on FreeBSD
6535       # at least.
6536       if ! $ld --verbose >/dev/null 2>&1; then
6537         error_exit \
6538             "We need to link the QEMU user mode binaries at a" \
6539             "specific text address. Unfortunately your linker" \
6540             "doesn't support either the -Ttext-segment option or" \
6541             "printing the default linker script with --verbose." \
6542             "If you don't want the user mode binaries, pass the" \
6543             "--disable-user option to configure."
6544       fi
6545
6546       $ld --verbose | sed \
6547         -e '1,/==================================================/d' \
6548         -e '/==================================================/,$d' \
6549         -e "s/[.] = [0-9a-fx]* [+] SIZEOF_HEADERS/. = $textseg_addr + SIZEOF_HEADERS/" \
6550         -e "s/__executable_start = [0-9a-fx]*/__executable_start = $textseg_addr/" > config-host.ld
6551       textseg_ldflags="-Wl,-T../config-host.ld"
6552     fi
6553   fi
6554 fi
6555
6556 # Check that the C++ compiler exists and works with the C compiler.
6557 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
6558 if has $cxx; then
6559     cat > $TMPC <<EOF
6560 int c_function(void);
6561 int main(void) { return c_function(); }
6562 EOF
6563
6564     compile_object
6565
6566     cat > $TMPCXX <<EOF
6567 extern "C" {
6568    int c_function(void);
6569 }
6570 int c_function(void) { return 42; }
6571 EOF
6572
6573     update_cxxflags
6574
6575     if do_cxx $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
6576         # C++ compiler $cxx works ok with C compiler $cc
6577         :
6578     else
6579         echo "C++ compiler $cxx does not work with C compiler $cc"
6580         echo "Disabling C++ specific optional code"
6581         cxx=
6582     fi
6583 else
6584     echo "No C++ compiler available; disabling C++ specific optional code"
6585     cxx=
6586 fi
6587
6588 echo_version() {
6589     if test "$1" = "yes" ; then
6590         echo "($2)"
6591     fi
6592 }
6593
6594 # prepend pixman and ftd flags after all config tests are done
6595 QEMU_CFLAGS="$pixman_cflags $fdt_cflags $QEMU_CFLAGS"
6596 QEMU_LDFLAGS="$fdt_ldflags $QEMU_LDFLAGS"
6597 libs_softmmu="$pixman_libs $libs_softmmu"
6598
6599 echo "Install prefix    $prefix"
6600 echo "BIOS directory    $(eval echo $qemu_datadir)"
6601 echo "firmware path     $(eval echo $firmwarepath)"
6602 echo "binary directory  $(eval echo $bindir)"
6603 echo "library directory $(eval echo $libdir)"
6604 echo "module directory  $(eval echo $qemu_moddir)"
6605 echo "libexec directory $(eval echo $libexecdir)"
6606 echo "include directory $(eval echo $includedir)"
6607 echo "config directory  $(eval echo $sysconfdir)"
6608 if test "$mingw32" = "no" ; then
6609 echo "local state directory   $(eval echo $local_statedir)"
6610 echo "Manual directory  $(eval echo $mandir)"
6611 echo "ELF interp prefix $interp_prefix"
6612 else
6613 echo "local state directory   queried at runtime"
6614 echo "Windows SDK       $win_sdk"
6615 fi
6616 echo "Build directory   $(pwd)"
6617 echo "Source path       $source_path"
6618 echo "GIT binary        $git"
6619 echo "GIT submodules    $git_submodules"
6620 echo "C compiler        $cc"
6621 echo "Host C compiler   $host_cc"
6622 echo "C++ compiler      $cxx"
6623 echo "Objective-C compiler $objcc"
6624 echo "ARFLAGS           $ARFLAGS"
6625 echo "CFLAGS            $CFLAGS"
6626 echo "QEMU_CFLAGS       $QEMU_CFLAGS"
6627 echo "QEMU_LDFLAGS      $QEMU_LDFLAGS"
6628 echo "make              $make"
6629 echo "install           $install"
6630 echo "python            $python ($python_version)"
6631 if test "$docs" != "no"; then
6632     echo "sphinx-build      $sphinx_build"
6633 fi
6634 echo "genisoimage       $genisoimage"
6635 echo "slirp support     $slirp $(echo_version $slirp $slirp_version)"
6636 if test "$slirp" != "no" ; then
6637     echo "smbd              $smbd"
6638 fi
6639 echo "module support    $modules"
6640 echo "alt path mod load $module_upgrades"
6641 echo "host CPU          $cpu"
6642 echo "host big endian   $bigendian"
6643 echo "target list       $target_list"
6644 echo "gprof enabled     $gprof"
6645 echo "sparse enabled    $sparse"
6646 echo "strip binaries    $strip_opt"
6647 echo "profiler          $profiler"
6648 echo "static build      $static"
6649 if test "$darwin" = "yes" ; then
6650     echo "Cocoa support     $cocoa"
6651 fi
6652 echo "SDL support       $sdl $(echo_version $sdl $sdlversion)"
6653 echo "SDL image support $sdl_image"
6654 echo "GTK support       $gtk $(echo_version $gtk $gtk_version)"
6655 echo "GTK GL support    $gtk_gl"
6656 echo "VTE support       $vte $(echo_version $vte $vteversion)"
6657 echo "TLS priority      $tls_priority"
6658 echo "GNUTLS support    $gnutls"
6659 echo "libgcrypt         $gcrypt"
6660 if test "$gcrypt" = "yes"
6661 then
6662    echo "  hmac            $gcrypt_hmac"
6663    echo "  XTS             $gcrypt_xts"
6664 fi
6665 echo "nettle            $nettle $(echo_version $nettle $nettle_version)"
6666 if test "$nettle" = "yes"
6667 then
6668    echo "  XTS             $nettle_xts"
6669 fi
6670 echo "libtasn1          $tasn1"
6671 echo "PAM               $auth_pam"
6672 echo "iconv support     $iconv"
6673 echo "curses support    $curses"
6674 echo "virgl support     $virglrenderer $(echo_version $virglrenderer $virgl_version)"
6675 echo "curl support      $curl"
6676 echo "mingw32 support   $mingw32"
6677 echo "Audio drivers     $audio_drv_list"
6678 echo "Block whitelist (rw) $block_drv_rw_whitelist"
6679 echo "Block whitelist (ro) $block_drv_ro_whitelist"
6680 echo "VirtFS support    $virtfs"
6681 echo "Multipath support $mpath"
6682 echo "VNC support       $vnc"
6683 if test "$vnc" = "yes" ; then
6684     echo "VNC SASL support  $vnc_sasl"
6685     echo "VNC JPEG support  $vnc_jpeg"
6686     echo "VNC PNG support   $vnc_png"
6687 fi
6688 echo "xen support       $xen"
6689 if test "$xen" = "yes" ; then
6690   echo "xen ctrl version  $xen_ctrl_version"
6691 fi
6692 echo "brlapi support    $brlapi"
6693 echo "Documentation     $docs"
6694 echo "PIE               $pie"
6695 echo "vde support       $vde"
6696 echo "netmap support    $netmap"
6697 echo "Linux AIO support $linux_aio"
6698 echo "Linux io_uring support $linux_io_uring"
6699 echo "ATTR/XATTR support $attr"
6700 echo "Install blobs     $blobs"
6701 echo "KVM support       $kvm"
6702 echo "HAX support       $hax"
6703 echo "HVF support       $hvf"
6704 echo "WHPX support      $whpx"
6705 echo "TCG support       $tcg"
6706 if test "$tcg" = "yes" ; then
6707     echo "TCG debug enabled $debug_tcg"
6708     echo "TCG interpreter   $tcg_interpreter"
6709 fi
6710 echo "malloc trim support $malloc_trim"
6711 echo "RDMA support      $rdma"
6712 echo "PVRDMA support    $pvrdma"
6713 echo "fdt support       $fdt"
6714 echo "membarrier        $membarrier"
6715 echo "preadv support    $preadv"
6716 echo "fdatasync         $fdatasync"
6717 echo "madvise           $madvise"
6718 echo "posix_madvise     $posix_madvise"
6719 echo "posix_memalign    $posix_memalign"
6720 echo "libcap-ng support $cap_ng"
6721 echo "vhost-net support $vhost_net"
6722 echo "vhost-crypto support $vhost_crypto"
6723 echo "vhost-scsi support $vhost_scsi"
6724 echo "vhost-vsock support $vhost_vsock"
6725 echo "vhost-user support $vhost_user"
6726 echo "vhost-user-fs support $vhost_user_fs"
6727 echo "Trace backends    $trace_backends"
6728 if have_backend "simple"; then
6729 echo "Trace output file $trace_file-<pid>"
6730 fi
6731 echo "spice support     $spice $(echo_version $spice $spice_protocol_version/$spice_server_version)"
6732 echo "rbd support       $rbd"
6733 echo "xfsctl support    $xfs"
6734 echo "smartcard support $smartcard"
6735 echo "libusb            $libusb"
6736 echo "usb net redir     $usb_redir"
6737 echo "OpenGL support    $opengl"
6738 echo "OpenGL dmabufs    $opengl_dmabuf"
6739 echo "libiscsi support  $libiscsi"
6740 echo "libnfs support    $libnfs"
6741 echo "build guest agent $guest_agent"
6742 echo "QGA VSS support   $guest_agent_with_vss"
6743 echo "QGA w32 disk info $guest_agent_ntddscsi"
6744 echo "QGA MSI support   $guest_agent_msi"
6745 echo "seccomp support   $seccomp"
6746 echo "coroutine backend $coroutine"
6747 echo "coroutine pool    $coroutine_pool"
6748 echo "debug stack usage $debug_stack_usage"
6749 echo "mutex debugging   $debug_mutex"
6750 echo "crypto afalg      $crypto_afalg"
6751 echo "GlusterFS support $glusterfs"
6752 echo "gcov              $gcov_tool"
6753 echo "gcov enabled      $gcov"
6754 echo "TPM support       $tpm"
6755 echo "libssh support    $libssh"
6756 echo "QOM debugging     $qom_cast_debug"
6757 echo "Live block migration $live_block_migration"
6758 echo "lzo support       $lzo"
6759 echo "snappy support    $snappy"
6760 echo "bzip2 support     $bzip2"
6761 echo "lzfse support     $lzfse"
6762 echo "zstd support      $zstd"
6763 echo "NUMA host support $numa"
6764 echo "libxml2           $libxml2"
6765 echo "tcmalloc support  $tcmalloc"
6766 echo "jemalloc support  $jemalloc"
6767 echo "avx2 optimization $avx2_opt"
6768 echo "avx512f optimization $avx512f_opt"
6769 echo "replication support $replication"
6770 echo "VxHS block device $vxhs"
6771 echo "bochs support     $bochs"
6772 echo "cloop support     $cloop"
6773 echo "dmg support       $dmg"
6774 echo "qcow v1 support   $qcow1"
6775 echo "vdi support       $vdi"
6776 echo "vvfat support     $vvfat"
6777 echo "qed support       $qed"
6778 echo "parallels support $parallels"
6779 echo "sheepdog support  $sheepdog"
6780 echo "capstone          $capstone"
6781 echo "libpmem support   $libpmem"
6782 echo "libudev           $libudev"
6783 echo "default devices   $default_devices"
6784 echo "plugin support    $plugins"
6785 echo "fuzzing support   $fuzzing"
6786
6787 if test "$supported_cpu" = "no"; then
6788     echo
6789     echo "WARNING: SUPPORT FOR THIS HOST CPU WILL GO AWAY IN FUTURE RELEASES!"
6790     echo
6791     echo "CPU host architecture $cpu support is not currently maintained."
6792     echo "The QEMU project intends to remove support for this host CPU in"
6793     echo "a future release if nobody volunteers to maintain it and to"
6794     echo "provide a build host for our continuous integration setup."
6795     echo "configure has succeeded and you can continue to build, but"
6796     echo "if you care about QEMU on this platform you should contact"
6797     echo "us upstream at qemu-devel@nongnu.org."
6798 fi
6799
6800 if test "$supported_os" = "no"; then
6801     echo
6802     echo "WARNING: SUPPORT FOR THIS HOST OS WILL GO AWAY IN FUTURE RELEASES!"
6803     echo
6804     echo "Host OS $targetos support is not currently maintained."
6805     echo "The QEMU project intends to remove support for this host OS in"
6806     echo "a future release if nobody volunteers to maintain it and to"
6807     echo "provide a build host for our continuous integration setup."
6808     echo "configure has succeeded and you can continue to build, but"
6809     echo "if you care about QEMU on this platform you should contact"
6810     echo "us upstream at qemu-devel@nongnu.org."
6811 fi
6812
6813 config_host_mak="config-host.mak"
6814
6815 echo "# Automatically generated by configure - do not modify" >config-all-disas.mak
6816
6817 echo "# Automatically generated by configure - do not modify" > $config_host_mak
6818 echo >> $config_host_mak
6819
6820 echo all: >> $config_host_mak
6821 echo "prefix=$prefix" >> $config_host_mak
6822 echo "bindir=$bindir" >> $config_host_mak
6823 echo "libdir=$libdir" >> $config_host_mak
6824 echo "libexecdir=$libexecdir" >> $config_host_mak
6825 echo "includedir=$includedir" >> $config_host_mak
6826 echo "mandir=$mandir" >> $config_host_mak
6827 echo "sysconfdir=$sysconfdir" >> $config_host_mak
6828 echo "qemu_confdir=$qemu_confdir" >> $config_host_mak
6829 echo "qemu_datadir=$qemu_datadir" >> $config_host_mak
6830 echo "qemu_firmwarepath=$firmwarepath" >> $config_host_mak
6831 echo "qemu_docdir=$qemu_docdir" >> $config_host_mak
6832 echo "qemu_moddir=$qemu_moddir" >> $config_host_mak
6833 if test "$mingw32" = "no" ; then
6834   echo "qemu_localstatedir=$local_statedir" >> $config_host_mak
6835 fi
6836 echo "qemu_helperdir=$libexecdir" >> $config_host_mak
6837 echo "qemu_localedir=$qemu_localedir" >> $config_host_mak
6838 echo "qemu_icondir=$qemu_icondir" >> $config_host_mak
6839 echo "qemu_desktopdir=$qemu_desktopdir" >> $config_host_mak
6840 echo "libs_cpu=$libs_cpu" >> $config_host_mak
6841 echo "libs_softmmu=$libs_softmmu" >> $config_host_mak
6842 echo "GIT=$git" >> $config_host_mak
6843 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
6844 echo "GIT_UPDATE=$git_update" >> $config_host_mak
6845
6846 echo "ARCH=$ARCH" >> $config_host_mak
6847
6848 if test "$default_devices" = "yes" ; then
6849   echo "CONFIG_MINIKCONF_MODE=--defconfig" >> $config_host_mak
6850 else
6851   echo "CONFIG_MINIKCONF_MODE=--allnoconfig" >> $config_host_mak
6852 fi
6853 if test "$debug_tcg" = "yes" ; then
6854   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
6855 fi
6856 if test "$strip_opt" = "yes" ; then
6857   echo "STRIP=${strip}" >> $config_host_mak
6858 fi
6859 if test "$bigendian" = "yes" ; then
6860   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
6861 fi
6862 if test "$mingw32" = "yes" ; then
6863   echo "CONFIG_WIN32=y" >> $config_host_mak
6864   rc_version=$(cat $source_path/VERSION)
6865   version_major=${rc_version%%.*}
6866   rc_version=${rc_version#*.}
6867   version_minor=${rc_version%%.*}
6868   rc_version=${rc_version#*.}
6869   version_subminor=${rc_version%%.*}
6870   version_micro=0
6871   echo "CONFIG_FILEVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
6872   echo "CONFIG_PRODUCTVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
6873   if test "$guest_agent_with_vss" = "yes" ; then
6874     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
6875     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
6876     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
6877   fi
6878   if test "$guest_agent_ntddscsi" = "yes" ; then
6879     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
6880   fi
6881   if test "$guest_agent_msi" = "yes"; then
6882     echo "QEMU_GA_MSI_ENABLED=yes" >> $config_host_mak
6883     echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
6884     echo "QEMU_GA_MSI_WITH_VSS=${QEMU_GA_MSI_WITH_VSS}" >> $config_host_mak
6885     echo "QEMU_GA_MSI_ARCH=${QEMU_GA_MSI_ARCH}" >> $config_host_mak
6886     echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
6887     echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
6888     echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
6889   fi
6890 else
6891   echo "CONFIG_POSIX=y" >> $config_host_mak
6892 fi
6893
6894 if test "$linux" = "yes" ; then
6895   echo "CONFIG_LINUX=y" >> $config_host_mak
6896 fi
6897
6898 if test "$darwin" = "yes" ; then
6899   echo "CONFIG_DARWIN=y" >> $config_host_mak
6900 fi
6901
6902 if test "$solaris" = "yes" ; then
6903   echo "CONFIG_SOLARIS=y" >> $config_host_mak
6904 fi
6905 if test "$haiku" = "yes" ; then
6906   echo "CONFIG_HAIKU=y" >> $config_host_mak
6907 fi
6908 if test "$static" = "yes" ; then
6909   echo "CONFIG_STATIC=y" >> $config_host_mak
6910 fi
6911 if test "$profiler" = "yes" ; then
6912   echo "CONFIG_PROFILER=y" >> $config_host_mak
6913 fi
6914 if test "$want_tools" = "yes" ; then
6915   echo "CONFIG_TOOLS=y" >> $config_host_mak
6916 fi
6917 if test "$slirp" != "no"; then
6918   echo "CONFIG_SLIRP=y" >> $config_host_mak
6919   echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
6920   echo "SLIRP_CFLAGS=$slirp_cflags" >> $config_host_mak
6921   echo "SLIRP_LIBS=$slirp_libs" >> $config_host_mak
6922 fi
6923 if [ "$slirp" = "git" -o "$slirp" = "internal" ]; then
6924     echo "config-host.h: slirp/all" >> $config_host_mak
6925 fi
6926 if test "$vde" = "yes" ; then
6927   echo "CONFIG_VDE=y" >> $config_host_mak
6928   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
6929 fi
6930 if test "$netmap" = "yes" ; then
6931   echo "CONFIG_NETMAP=y" >> $config_host_mak
6932 fi
6933 if test "$l2tpv3" = "yes" ; then
6934   echo "CONFIG_L2TPV3=y" >> $config_host_mak
6935 fi
6936 if test "$gprof" = "yes" ; then
6937   echo "CONFIG_GPROF=y" >> $config_host_mak
6938 fi
6939 if test "$cap_ng" = "yes" ; then
6940   echo "CONFIG_LIBCAP_NG=y" >> $config_host_mak
6941 fi
6942 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
6943 for drv in $audio_drv_list; do
6944     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
6945     case "$drv" in
6946         alsa | oss | pa | sdl)
6947             echo "$def=m" >> $config_host_mak ;;
6948         *)
6949             echo "$def=y" >> $config_host_mak ;;
6950     esac
6951 done
6952 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
6953 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
6954 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
6955 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
6956 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
6957 if test "$audio_win_int" = "yes" ; then
6958   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
6959 fi
6960 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
6961 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
6962 if test "$vnc" = "yes" ; then
6963   echo "CONFIG_VNC=y" >> $config_host_mak
6964 fi
6965 if test "$vnc_sasl" = "yes" ; then
6966   echo "CONFIG_VNC_SASL=y" >> $config_host_mak
6967 fi
6968 if test "$vnc_jpeg" = "yes" ; then
6969   echo "CONFIG_VNC_JPEG=y" >> $config_host_mak
6970 fi
6971 if test "$vnc_png" = "yes" ; then
6972   echo "CONFIG_VNC_PNG=y" >> $config_host_mak
6973 fi
6974 if test "$xkbcommon" = "yes" ; then
6975   echo "XKBCOMMON_CFLAGS=$xkbcommon_cflags" >> $config_host_mak
6976   echo "XKBCOMMON_LIBS=$xkbcommon_libs" >> $config_host_mak
6977 fi
6978 if test "$xfs" = "yes" ; then
6979   echo "CONFIG_XFS=y" >> $config_host_mak
6980 fi
6981 qemu_version=$(head $source_path/VERSION)
6982 echo "VERSION=$qemu_version" >>$config_host_mak
6983 echo "PKGVERSION=$pkgversion" >>$config_host_mak
6984 echo "SRC_PATH=$source_path" >> $config_host_mak
6985 echo "TARGET_DIRS=$target_list" >> $config_host_mak
6986 if [ "$docs" = "yes" ] ; then
6987   echo "BUILD_DOCS=yes" >> $config_host_mak
6988 fi
6989 if test "$modules" = "yes"; then
6990   # $shacmd can generate a hash started with digit, which the compiler doesn't
6991   # like as an symbol. So prefix it with an underscore
6992   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
6993   echo "CONFIG_MODULES=y" >> $config_host_mak
6994 fi
6995 if test "$module_upgrades" = "yes"; then
6996   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
6997 fi
6998 if test "$have_x11" = "yes" && test "$need_x11" = "yes"; then
6999   echo "CONFIG_X11=y" >> $config_host_mak
7000   echo "X11_CFLAGS=$x11_cflags" >> $config_host_mak
7001   echo "X11_LIBS=$x11_libs" >> $config_host_mak
7002 fi
7003 if test "$sdl" = "yes" ; then
7004   echo "CONFIG_SDL=m" >> $config_host_mak
7005   echo "SDL_CFLAGS=$sdl_cflags" >> $config_host_mak
7006   echo "SDL_LIBS=$sdl_libs" >> $config_host_mak
7007   if test "$sdl_image" = "yes" ; then
7008       echo "CONFIG_SDL_IMAGE=y" >> $config_host_mak
7009   fi
7010 fi
7011 if test "$cocoa" = "yes" ; then
7012   echo "CONFIG_COCOA=y" >> $config_host_mak
7013 fi
7014 if test "$iconv" = "yes" ; then
7015   echo "CONFIG_ICONV=y" >> $config_host_mak
7016   echo "ICONV_CFLAGS=$iconv_cflags" >> $config_host_mak
7017   echo "ICONV_LIBS=$iconv_lib" >> $config_host_mak
7018 fi
7019 if test "$curses" = "yes" ; then
7020   echo "CONFIG_CURSES=m" >> $config_host_mak
7021   echo "CURSES_CFLAGS=$curses_inc" >> $config_host_mak
7022   echo "CURSES_LIBS=$curses_lib" >> $config_host_mak
7023 fi
7024 if test "$pipe2" = "yes" ; then
7025   echo "CONFIG_PIPE2=y" >> $config_host_mak
7026 fi
7027 if test "$accept4" = "yes" ; then
7028   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
7029 fi
7030 if test "$splice" = "yes" ; then
7031   echo "CONFIG_SPLICE=y" >> $config_host_mak
7032 fi
7033 if test "$eventfd" = "yes" ; then
7034   echo "CONFIG_EVENTFD=y" >> $config_host_mak
7035 fi
7036 if test "$memfd" = "yes" ; then
7037   echo "CONFIG_MEMFD=y" >> $config_host_mak
7038 fi
7039 if test "$have_usbfs" = "yes" ; then
7040   echo "CONFIG_USBFS=y" >> $config_host_mak
7041 fi
7042 if test "$fallocate" = "yes" ; then
7043   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
7044 fi
7045 if test "$fallocate_punch_hole" = "yes" ; then
7046   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
7047 fi
7048 if test "$fallocate_zero_range" = "yes" ; then
7049   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
7050 fi
7051 if test "$posix_fallocate" = "yes" ; then
7052   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
7053 fi
7054 if test "$sync_file_range" = "yes" ; then
7055   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
7056 fi
7057 if test "$fiemap" = "yes" ; then
7058   echo "CONFIG_FIEMAP=y" >> $config_host_mak
7059 fi
7060 if test "$dup3" = "yes" ; then
7061   echo "CONFIG_DUP3=y" >> $config_host_mak
7062 fi
7063 if test "$ppoll" = "yes" ; then
7064   echo "CONFIG_PPOLL=y" >> $config_host_mak
7065 fi
7066 if test "$prctl_pr_set_timerslack" = "yes" ; then
7067   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
7068 fi
7069 if test "$epoll" = "yes" ; then
7070   echo "CONFIG_EPOLL=y" >> $config_host_mak
7071 fi
7072 if test "$epoll_create1" = "yes" ; then
7073   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
7074 fi
7075 if test "$sendfile" = "yes" ; then
7076   echo "CONFIG_SENDFILE=y" >> $config_host_mak
7077 fi
7078 if test "$timerfd" = "yes" ; then
7079   echo "CONFIG_TIMERFD=y" >> $config_host_mak
7080 fi
7081 if test "$setns" = "yes" ; then
7082   echo "CONFIG_SETNS=y" >> $config_host_mak
7083 fi
7084 if test "$clock_adjtime" = "yes" ; then
7085   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
7086 fi
7087 if test "$syncfs" = "yes" ; then
7088   echo "CONFIG_SYNCFS=y" >> $config_host_mak
7089 fi
7090 if test "$kcov" = "yes" ; then
7091   echo "CONFIG_KCOV=y" >> $config_host_mak
7092 fi
7093 if test "$inotify" = "yes" ; then
7094   echo "CONFIG_INOTIFY=y" >> $config_host_mak
7095 fi
7096 if test "$inotify1" = "yes" ; then
7097   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
7098 fi
7099 if test "$sem_timedwait" = "yes" ; then
7100   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
7101 fi
7102 if test "$strchrnul" = "yes" ; then
7103   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
7104 fi
7105 if test "$st_atim" = "yes" ; then
7106   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
7107 fi
7108 if test "$byteswap_h" = "yes" ; then
7109   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
7110 fi
7111 if test "$bswap_h" = "yes" ; then
7112   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
7113 fi
7114 if test "$curl" = "yes" ; then
7115   echo "CONFIG_CURL=m" >> $config_host_mak
7116   echo "CURL_CFLAGS=$curl_cflags" >> $config_host_mak
7117   echo "CURL_LIBS=$curl_libs" >> $config_host_mak
7118 fi
7119 if test "$brlapi" = "yes" ; then
7120   echo "CONFIG_BRLAPI=y" >> $config_host_mak
7121   echo "BRLAPI_LIBS=$brlapi_libs" >> $config_host_mak
7122 fi
7123 if test "$gtk" = "yes" ; then
7124   echo "CONFIG_GTK=m" >> $config_host_mak
7125   echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
7126   echo "GTK_LIBS=$gtk_libs" >> $config_host_mak
7127   if test "$gtk_gl" = "yes" ; then
7128     echo "CONFIG_GTK_GL=y" >> $config_host_mak
7129   fi
7130 fi
7131 if test "$gio" = "yes" ; then
7132     echo "CONFIG_GIO=y" >> $config_host_mak
7133     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
7134     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
7135     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
7136 fi
7137 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
7138 if test "$gnutls" = "yes" ; then
7139   echo "CONFIG_GNUTLS=y" >> $config_host_mak
7140 fi
7141 if test "$gcrypt" = "yes" ; then
7142   echo "CONFIG_GCRYPT=y" >> $config_host_mak
7143   if test "$gcrypt_hmac" = "yes" ; then
7144     echo "CONFIG_GCRYPT_HMAC=y" >> $config_host_mak
7145   fi
7146 fi
7147 if test "$nettle" = "yes" ; then
7148   echo "CONFIG_NETTLE=y" >> $config_host_mak
7149   echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
7150 fi
7151 if test "$qemu_private_xts" = "yes" ; then
7152   echo "CONFIG_QEMU_PRIVATE_XTS=y" >> $config_host_mak
7153 fi
7154 if test "$tasn1" = "yes" ; then
7155   echo "CONFIG_TASN1=y" >> $config_host_mak
7156 fi
7157 if test "$auth_pam" = "yes" ; then
7158     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
7159 fi
7160 if test "$have_ifaddrs_h" = "yes" ; then
7161     echo "HAVE_IFADDRS_H=y" >> $config_host_mak
7162 fi
7163 if test "$have_broken_size_max" = "yes" ; then
7164     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
7165 fi
7166
7167 # Work around a system header bug with some kernel/XFS header
7168 # versions where they both try to define 'struct fsxattr':
7169 # xfs headers will not try to redefine structs from linux headers
7170 # if this macro is set.
7171 if test "$have_fsxattr" = "yes" ; then
7172     echo "HAVE_FSXATTR=y" >> $config_host_mak
7173 fi
7174 if test "$have_copy_file_range" = "yes" ; then
7175     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
7176 fi
7177 if test "$vte" = "yes" ; then
7178   echo "CONFIG_VTE=y" >> $config_host_mak
7179   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
7180   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
7181 fi
7182 if test "$virglrenderer" = "yes" ; then
7183   echo "CONFIG_VIRGL=y" >> $config_host_mak
7184   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
7185   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
7186 fi
7187 if test "$xen" = "yes" ; then
7188   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
7189   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
7190 fi
7191 if test "$linux_aio" = "yes" ; then
7192   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
7193 fi
7194 if test "$linux_io_uring" = "yes" ; then
7195   echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
7196   echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
7197   echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
7198 fi
7199 if test "$attr" = "yes" ; then
7200   echo "CONFIG_ATTR=y" >> $config_host_mak
7201 fi
7202 if test "$libattr" = "yes" ; then
7203   echo "CONFIG_LIBATTR=y" >> $config_host_mak
7204 fi
7205 if test "$virtfs" = "yes" ; then
7206   echo "CONFIG_VIRTFS=y" >> $config_host_mak
7207 fi
7208 if test "$mpath" = "yes" ; then
7209   echo "CONFIG_MPATH=y" >> $config_host_mak
7210   if test "$mpathpersist_new_api" = "yes"; then
7211     echo "CONFIG_MPATH_NEW_API=y" >> $config_host_mak
7212   fi
7213 fi
7214 if test "$vhost_scsi" = "yes" ; then
7215   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
7216 fi
7217 if test "$vhost_net" = "yes" ; then
7218   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
7219 fi
7220 if test "$vhost_net_user" = "yes" ; then
7221   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
7222 fi
7223 if test "$vhost_crypto" = "yes" ; then
7224   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
7225 fi
7226 if test "$vhost_vsock" = "yes" ; then
7227   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
7228 fi
7229 if test "$vhost_kernel" = "yes" ; then
7230   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
7231 fi
7232 if test "$vhost_user" = "yes" ; then
7233   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
7234 fi
7235 if test "$vhost_user_fs" = "yes" ; then
7236   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
7237 fi
7238 if test "$blobs" = "yes" ; then
7239   echo "INSTALL_BLOBS=yes" >> $config_host_mak
7240 fi
7241 if test "$iovec" = "yes" ; then
7242   echo "CONFIG_IOVEC=y" >> $config_host_mak
7243 fi
7244 if test "$preadv" = "yes" ; then
7245   echo "CONFIG_PREADV=y" >> $config_host_mak
7246 fi
7247 if test "$fdt" != "no" ; then
7248   echo "CONFIG_FDT=y" >> $config_host_mak
7249 fi
7250 if test "$membarrier" = "yes" ; then
7251   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
7252 fi
7253 if test "$signalfd" = "yes" ; then
7254   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
7255 fi
7256 if test "$optreset" = "yes" ; then
7257   echo "HAVE_OPTRESET=y" >> $config_host_mak
7258 fi
7259 if test "$tcg" = "yes"; then
7260   echo "CONFIG_TCG=y" >> $config_host_mak
7261   if test "$tcg_interpreter" = "yes" ; then
7262     echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
7263   fi
7264 fi
7265 if test "$fdatasync" = "yes" ; then
7266   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
7267 fi
7268 if test "$madvise" = "yes" ; then
7269   echo "CONFIG_MADVISE=y" >> $config_host_mak
7270 fi
7271 if test "$posix_madvise" = "yes" ; then
7272   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
7273 fi
7274 if test "$posix_memalign" = "yes" ; then
7275   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
7276 fi
7277
7278 if test "$spice" = "yes" ; then
7279   echo "CONFIG_SPICE=y" >> $config_host_mak
7280 fi
7281
7282 if test "$smartcard" = "yes" ; then
7283   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
7284   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
7285   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
7286 fi
7287
7288 if test "$libusb" = "yes" ; then
7289   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
7290   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
7291   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
7292 fi
7293
7294 if test "$usb_redir" = "yes" ; then
7295   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
7296   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
7297   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
7298 fi
7299
7300 if test "$opengl" = "yes" ; then
7301   echo "CONFIG_OPENGL=y" >> $config_host_mak
7302   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
7303   if test "$opengl_dmabuf" = "yes" ; then
7304     echo "CONFIG_OPENGL_DMABUF=y" >> $config_host_mak
7305   fi
7306 fi
7307
7308 if test "$gbm" = "yes" ; then
7309     echo "CONFIG_GBM=y" >> $config_host_mak
7310     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
7311     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
7312 fi
7313
7314
7315 if test "$malloc_trim" = "yes" ; then
7316   echo "CONFIG_MALLOC_TRIM=y" >> $config_host_mak
7317 fi
7318
7319 if test "$avx2_opt" = "yes" ; then
7320   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
7321 fi
7322
7323 if test "$avx512f_opt" = "yes" ; then
7324   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
7325 fi
7326
7327 if test "$lzo" = "yes" ; then
7328   echo "CONFIG_LZO=y" >> $config_host_mak
7329 fi
7330
7331 if test "$snappy" = "yes" ; then
7332   echo "CONFIG_SNAPPY=y" >> $config_host_mak
7333 fi
7334
7335 if test "$bzip2" = "yes" ; then
7336   echo "CONFIG_BZIP2=y" >> $config_host_mak
7337   echo "BZIP2_LIBS=-lbz2" >> $config_host_mak
7338 fi
7339
7340 if test "$lzfse" = "yes" ; then
7341   echo "CONFIG_LZFSE=y" >> $config_host_mak
7342   echo "LZFSE_LIBS=-llzfse" >> $config_host_mak
7343 fi
7344
7345 if test "$zstd" = "yes" ; then
7346   echo "CONFIG_ZSTD=y" >> $config_host_mak
7347 fi
7348
7349 if test "$libiscsi" = "yes" ; then
7350   echo "CONFIG_LIBISCSI=m" >> $config_host_mak
7351   echo "LIBISCSI_CFLAGS=$libiscsi_cflags" >> $config_host_mak
7352   echo "LIBISCSI_LIBS=$libiscsi_libs" >> $config_host_mak
7353 fi
7354
7355 if test "$libnfs" = "yes" ; then
7356   echo "CONFIG_LIBNFS=m" >> $config_host_mak
7357   echo "LIBNFS_LIBS=$libnfs_libs" >> $config_host_mak
7358 fi
7359
7360 if test "$seccomp" = "yes"; then
7361   echo "CONFIG_SECCOMP=y" >> $config_host_mak
7362   echo "SECCOMP_CFLAGS=$seccomp_cflags" >> $config_host_mak
7363   echo "SECCOMP_LIBS=$seccomp_libs" >> $config_host_mak
7364 fi
7365
7366 # XXX: suppress that
7367 if [ "$bsd" = "yes" ] ; then
7368   echo "CONFIG_BSD=y" >> $config_host_mak
7369 fi
7370
7371 if test "$localtime_r" = "yes" ; then
7372   echo "CONFIG_LOCALTIME_R=y" >> $config_host_mak
7373 fi
7374 if test "$qom_cast_debug" = "yes" ; then
7375   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
7376 fi
7377 if test "$rbd" = "yes" ; then
7378   echo "CONFIG_RBD=m" >> $config_host_mak
7379   echo "RBD_CFLAGS=$rbd_cflags" >> $config_host_mak
7380   echo "RBD_LIBS=$rbd_libs" >> $config_host_mak
7381 fi
7382
7383 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
7384 if test "$coroutine_pool" = "yes" ; then
7385   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
7386 else
7387   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
7388 fi
7389
7390 if test "$debug_stack_usage" = "yes" ; then
7391   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
7392 fi
7393
7394 if test "$crypto_afalg" = "yes" ; then
7395   echo "CONFIG_AF_ALG=y" >> $config_host_mak
7396 fi
7397
7398 if test "$open_by_handle_at" = "yes" ; then
7399   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
7400 fi
7401
7402 if test "$linux_magic_h" = "yes" ; then
7403   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
7404 fi
7405
7406 if test "$pragma_diagnostic_available" = "yes" ; then
7407   echo "CONFIG_PRAGMA_DIAGNOSTIC_AVAILABLE=y" >> $config_host_mak
7408 fi
7409
7410 if test "$valgrind_h" = "yes" ; then
7411   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
7412 fi
7413
7414 if test "$have_asan_iface_fiber" = "yes" ; then
7415     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
7416 fi
7417
7418 if test "$has_environ" = "yes" ; then
7419   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
7420 fi
7421
7422 if test "$cpuid_h" = "yes" ; then
7423   echo "CONFIG_CPUID_H=y" >> $config_host_mak
7424 fi
7425
7426 if test "$int128" = "yes" ; then
7427   echo "CONFIG_INT128=y" >> $config_host_mak
7428 fi
7429
7430 if test "$atomic128" = "yes" ; then
7431   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
7432 fi
7433
7434 if test "$cmpxchg128" = "yes" ; then
7435   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
7436 fi
7437
7438 if test "$atomic64" = "yes" ; then
7439   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
7440 fi
7441
7442 if test "$vector16" = "yes" ; then
7443   echo "CONFIG_VECTOR16=y" >> $config_host_mak
7444 fi
7445
7446 if test "$attralias" = "yes" ; then
7447   echo "CONFIG_ATTRIBUTE_ALIAS=y" >> $config_host_mak
7448 fi
7449
7450 if test "$getauxval" = "yes" ; then
7451   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
7452 fi
7453
7454 if test "$glusterfs" = "yes" ; then
7455   echo "CONFIG_GLUSTERFS=m" >> $config_host_mak
7456   echo "GLUSTERFS_CFLAGS=$glusterfs_cflags" >> $config_host_mak
7457   echo "GLUSTERFS_LIBS=$glusterfs_libs" >> $config_host_mak
7458 fi
7459
7460 if test "$glusterfs_xlator_opt" = "yes" ; then
7461   echo "CONFIG_GLUSTERFS_XLATOR_OPT=y" >> $config_host_mak
7462 fi
7463
7464 if test "$glusterfs_discard" = "yes" ; then
7465   echo "CONFIG_GLUSTERFS_DISCARD=y" >> $config_host_mak
7466 fi
7467
7468 if test "$glusterfs_fallocate" = "yes" ; then
7469   echo "CONFIG_GLUSTERFS_FALLOCATE=y" >> $config_host_mak
7470 fi
7471
7472 if test "$glusterfs_zerofill" = "yes" ; then
7473   echo "CONFIG_GLUSTERFS_ZEROFILL=y" >> $config_host_mak
7474 fi
7475
7476 if test "$glusterfs_ftruncate_has_stat" = "yes" ; then
7477   echo "CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT=y" >> $config_host_mak
7478 fi
7479
7480 if test "$glusterfs_iocb_has_stat" = "yes" ; then
7481   echo "CONFIG_GLUSTERFS_IOCB_HAS_STAT=y" >> $config_host_mak
7482 fi
7483
7484 if test "$libssh" = "yes" ; then
7485   echo "CONFIG_LIBSSH=m" >> $config_host_mak
7486   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
7487   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
7488 fi
7489
7490 if test "$live_block_migration" = "yes" ; then
7491   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
7492 fi
7493
7494 if test "$tpm" = "yes"; then
7495   echo 'CONFIG_TPM=y' >> $config_host_mak
7496 fi
7497
7498 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
7499 if have_backend "nop"; then
7500   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
7501 fi
7502 if have_backend "simple"; then
7503   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
7504   # Set the appropriate trace file.
7505   trace_file="\"$trace_file-\" FMT_pid"
7506 fi
7507 if have_backend "log"; then
7508   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
7509 fi
7510 if have_backend "ust"; then
7511   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
7512 fi
7513 if have_backend "dtrace"; then
7514   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
7515   if test "$trace_backend_stap" = "yes" ; then
7516     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
7517   fi
7518 fi
7519 if have_backend "ftrace"; then
7520   if test "$linux" = "yes" ; then
7521     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
7522   else
7523     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
7524   fi
7525 fi
7526 if have_backend "syslog"; then
7527   if test "$posix_syslog" = "yes" ; then
7528     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
7529   else
7530     feature_not_found "syslog(trace backend)" "syslog not available"
7531   fi
7532 fi
7533 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
7534
7535 if test "$rdma" = "yes" ; then
7536   echo "CONFIG_RDMA=y" >> $config_host_mak
7537   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
7538 fi
7539
7540 if test "$pvrdma" = "yes" ; then
7541   echo "CONFIG_PVRDMA=y" >> $config_host_mak
7542 fi
7543
7544 if test "$have_rtnetlink" = "yes" ; then
7545   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
7546 fi
7547
7548 if test "$libxml2" = "yes" ; then
7549   echo "CONFIG_LIBXML2=y" >> $config_host_mak
7550   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
7551   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
7552 fi
7553
7554 if test "$replication" = "yes" ; then
7555   echo "CONFIG_REPLICATION=y" >> $config_host_mak
7556 fi
7557
7558 if test "$have_af_vsock" = "yes" ; then
7559   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
7560 fi
7561
7562 if test "$have_sysmacros" = "yes" ; then
7563   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
7564 fi
7565
7566 if test "$have_static_assert" = "yes" ; then
7567   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
7568 fi
7569
7570 if test "$have_utmpx" = "yes" ; then
7571   echo "HAVE_UTMPX=y" >> $config_host_mak
7572 fi
7573 if test "$have_getrandom" = "yes" ; then
7574   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
7575 fi
7576 if test "$ivshmem" = "yes" ; then
7577   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
7578 fi
7579 if test "$capstone" != "no" ; then
7580   echo "CONFIG_CAPSTONE=y" >> $config_host_mak
7581 fi
7582 if test "$debug_mutex" = "yes" ; then
7583   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
7584 fi
7585
7586 # Hold two types of flag:
7587 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
7588 #                                     a thread we have a handle to
7589 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
7590 #                                     platform
7591 if test "$pthread_setname_np_w_tid" = "yes" ; then
7592   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
7593   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
7594 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
7595   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
7596   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
7597 fi
7598
7599 if test "$vxhs" = "yes" ; then
7600   echo "CONFIG_VXHS=y" >> $config_host_mak
7601   echo "VXHS_LIBS=$vxhs_libs" >> $config_host_mak
7602 fi
7603
7604 if test "$libpmem" = "yes" ; then
7605   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
7606 fi
7607
7608 if test "$bochs" = "yes" ; then
7609   echo "CONFIG_BOCHS=y" >> $config_host_mak
7610 fi
7611 if test "$cloop" = "yes" ; then
7612   echo "CONFIG_CLOOP=y" >> $config_host_mak
7613 fi
7614 if test "$dmg" = "yes" ; then
7615   echo "CONFIG_DMG=y" >> $config_host_mak
7616 fi
7617 if test "$qcow1" = "yes" ; then
7618   echo "CONFIG_QCOW1=y" >> $config_host_mak
7619 fi
7620 if test "$vdi" = "yes" ; then
7621   echo "CONFIG_VDI=y" >> $config_host_mak
7622 fi
7623 if test "$vvfat" = "yes" ; then
7624   echo "CONFIG_VVFAT=y" >> $config_host_mak
7625 fi
7626 if test "$qed" = "yes" ; then
7627   echo "CONFIG_QED=y" >> $config_host_mak
7628 fi
7629 if test "$parallels" = "yes" ; then
7630   echo "CONFIG_PARALLELS=y" >> $config_host_mak
7631 fi
7632 if test "$sheepdog" = "yes" ; then
7633   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
7634 fi
7635 if test "$fuzzing" = "yes" ; then
7636   if test "$have_fuzzer" = "yes"; then
7637     FUZZ_LDFLAGS=" -fsanitize=address,fuzzer"
7638     FUZZ_CFLAGS=" -fsanitize=address,fuzzer"
7639     CFLAGS=" -fsanitize=address,fuzzer-no-link"
7640   else
7641     error_exit "Your compiler doesn't support -fsanitize=address,fuzzer"
7642     exit 1
7643   fi
7644 fi
7645
7646 if test "$plugins" = "yes" ; then
7647     echo "CONFIG_PLUGIN=y" >> $config_host_mak
7648     LIBS="-ldl $LIBS"
7649     # Copy the export object list to the build dir
7650     if test "$ld_dynamic_list" = "yes" ; then
7651         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
7652         ld_symbols=qemu-plugins-ld.symbols
7653         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
7654     elif test "$ld_exported_symbols_list" = "yes" ; then
7655         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
7656         ld64_symbols=qemu-plugins-ld64.symbols
7657         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
7658         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
7659             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
7660     else
7661         error_exit \
7662             "If \$plugins=yes, either \$ld_dynamic_list or " \
7663             "\$ld_exported_symbols_list should have been set to 'yes'."
7664     fi
7665 fi
7666
7667 if test "$tcg_interpreter" = "yes"; then
7668   QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/tci $QEMU_INCLUDES"
7669 elif test "$ARCH" = "sparc64" ; then
7670   QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/sparc $QEMU_INCLUDES"
7671 elif test "$ARCH" = "s390x" ; then
7672   QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/s390 $QEMU_INCLUDES"
7673 elif test "$ARCH" = "x86_64" || test "$ARCH" = "x32" ; then
7674   QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/i386 $QEMU_INCLUDES"
7675 elif test "$ARCH" = "ppc64" ; then
7676   QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/ppc $QEMU_INCLUDES"
7677 elif test "$ARCH" = "riscv32" || test "$ARCH" = "riscv64" ; then
7678   QEMU_INCLUDES="-I\$(SRC_PATH)/tcg/riscv $QEMU_INCLUDES"
7679 else
7680   QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/\$(ARCH) $QEMU_INCLUDES"
7681 fi
7682
7683 echo "TOOLS=$tools" >> $config_host_mak
7684 echo "ROMS=$roms" >> $config_host_mak
7685 echo "MAKE=$make" >> $config_host_mak
7686 echo "INSTALL=$install" >> $config_host_mak
7687 echo "INSTALL_DIR=$install -d -m 0755" >> $config_host_mak
7688 echo "INSTALL_DATA=$install -c -m 0644" >> $config_host_mak
7689 echo "INSTALL_PROG=$install -c -m 0755" >> $config_host_mak
7690 echo "INSTALL_LIB=$install -c -m 0644" >> $config_host_mak
7691 echo "PYTHON=$python" >> $config_host_mak
7692 echo "SPHINX_BUILD=$sphinx_build" >> $config_host_mak
7693 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
7694 echo "CC=$cc" >> $config_host_mak
7695 if $iasl -h > /dev/null 2>&1; then
7696   echo "IASL=$iasl" >> $config_host_mak
7697 fi
7698 echo "HOST_CC=$host_cc" >> $config_host_mak
7699 echo "CXX=$cxx" >> $config_host_mak
7700 echo "OBJCC=$objcc" >> $config_host_mak
7701 echo "AR=$ar" >> $config_host_mak
7702 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
7703 echo "AS=$as" >> $config_host_mak
7704 echo "CCAS=$ccas" >> $config_host_mak
7705 echo "CPP=$cpp" >> $config_host_mak
7706 echo "OBJCOPY=$objcopy" >> $config_host_mak
7707 echo "LD=$ld" >> $config_host_mak
7708 echo "RANLIB=$ranlib" >> $config_host_mak
7709 echo "NM=$nm" >> $config_host_mak
7710 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
7711 echo "WINDRES=$windres" >> $config_host_mak
7712 echo "CFLAGS=$CFLAGS" >> $config_host_mak
7713 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
7714 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
7715 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
7716 echo "QEMU_INCLUDES=$QEMU_INCLUDES" >> $config_host_mak
7717 if test "$sparse" = "yes" ; then
7718   echo "CC           := REAL_CC=\"\$(CC)\" cgcc"       >> $config_host_mak
7719   echo "CPP          := REAL_CC=\"\$(CPP)\" cgcc"      >> $config_host_mak
7720   echo "CXX          := REAL_CC=\"\$(CXX)\" cgcc"      >> $config_host_mak
7721   echo "HOST_CC      := REAL_CC=\"\$(HOST_CC)\" cgcc"  >> $config_host_mak
7722   echo "QEMU_CFLAGS  += -Wbitwise -Wno-transparent-union -Wno-old-initializer -Wno-non-pointer-null" >> $config_host_mak
7723 fi
7724 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
7725 echo "LDFLAGS_NOPIE=$LDFLAGS_NOPIE" >> $config_host_mak
7726 echo "LD_REL_FLAGS=$LD_REL_FLAGS" >> $config_host_mak
7727 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
7728 echo "LIBS+=$LIBS" >> $config_host_mak
7729 echo "LIBS_TOOLS+=$libs_tools" >> $config_host_mak
7730 echo "PTHREAD_LIB=$PTHREAD_LIB" >> $config_host_mak
7731 echo "EXESUF=$EXESUF" >> $config_host_mak
7732 echo "DSOSUF=$DSOSUF" >> $config_host_mak
7733 echo "LDFLAGS_SHARED=$LDFLAGS_SHARED" >> $config_host_mak
7734 echo "LIBS_QGA+=$libs_qga" >> $config_host_mak
7735 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
7736 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
7737 echo "POD2MAN=$POD2MAN" >> $config_host_mak
7738 if test "$gcov" = "yes" ; then
7739   echo "CONFIG_GCOV=y" >> $config_host_mak
7740   echo "GCOV=$gcov_tool" >> $config_host_mak
7741 fi
7742
7743 if test "$libudev" != "no"; then
7744     echo "CONFIG_LIBUDEV=y" >> $config_host_mak
7745     echo "LIBUDEV_LIBS=$libudev_libs" >> $config_host_mak
7746 fi
7747 if test "$fuzzing" != "no"; then
7748     echo "CONFIG_FUZZ=y" >> $config_host_mak
7749     echo "FUZZ_CFLAGS=$FUZZ_CFLAGS" >> $config_host_mak
7750     echo "FUZZ_LDFLAGS=$FUZZ_LDFLAGS" >> $config_host_mak
7751 fi
7752
7753 if test "$edk2_blobs" = "yes" ; then
7754   echo "DECOMPRESS_EDK2_BLOBS=y" >> $config_host_mak
7755 fi
7756
7757 # use included Linux headers
7758 if test "$linux" = "yes" ; then
7759   mkdir -p linux-headers
7760   case "$cpu" in
7761   i386|x86_64|x32)
7762     linux_arch=x86
7763     ;;
7764   ppc|ppc64|ppc64le)
7765     linux_arch=powerpc
7766     ;;
7767   s390x)
7768     linux_arch=s390
7769     ;;
7770   aarch64)
7771     linux_arch=arm64
7772     ;;
7773   mips64)
7774     linux_arch=mips
7775     ;;
7776   *)
7777     # For most CPUs the kernel architecture name and QEMU CPU name match.
7778     linux_arch="$cpu"
7779     ;;
7780   esac
7781     # For non-KVM architectures we will not have asm headers
7782     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
7783       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
7784     fi
7785 fi
7786
7787 for target in $target_list; do
7788 target_dir="$target"
7789 config_target_mak=$target_dir/config-target.mak
7790 target_name=$(echo $target | cut -d '-' -f 1)
7791 target_aligned_only="no"
7792 case "$target_name" in
7793   alpha|hppa|mips64el|mips64|mipsel|mips|mipsn32|mipsn32el|sh4|sh4eb|sparc|sparc64|sparc32plus|xtensa|xtensaeb)
7794   target_aligned_only="yes"
7795   ;;
7796 esac
7797 target_bigendian="no"
7798 case "$target_name" in
7799   armeb|aarch64_be|hppa|lm32|m68k|microblaze|mips|mipsn32|mips64|moxie|or1k|ppc|ppc64|ppc64abi32|s390x|sh4eb|sparc|sparc64|sparc32plus|xtensaeb)
7800   target_bigendian="yes"
7801   ;;
7802 esac
7803 target_softmmu="no"
7804 target_user_only="no"
7805 target_linux_user="no"
7806 target_bsd_user="no"
7807 case "$target" in
7808   ${target_name}-softmmu)
7809     target_softmmu="yes"
7810     ;;
7811   ${target_name}-linux-user)
7812     target_user_only="yes"
7813     target_linux_user="yes"
7814     ;;
7815   ${target_name}-bsd-user)
7816     target_user_only="yes"
7817     target_bsd_user="yes"
7818     ;;
7819   *)
7820     error_exit "Target '$target' not recognised"
7821     exit 1
7822     ;;
7823 esac
7824
7825 mkdir -p $target_dir
7826 echo "# Automatically generated by configure - do not modify" > $config_target_mak
7827
7828 bflt="no"
7829 mttcg="no"
7830 interp_prefix1=$(echo "$interp_prefix" | sed "s/%M/$target_name/g")
7831 gdb_xml_files=""
7832
7833 TARGET_ARCH="$target_name"
7834 TARGET_BASE_ARCH=""
7835 TARGET_ABI_DIR=""
7836
7837 case "$target_name" in
7838   i386)
7839     mttcg="yes"
7840         gdb_xml_files="i386-32bit.xml"
7841   ;;
7842   x86_64)
7843     TARGET_BASE_ARCH=i386
7844     mttcg="yes"
7845         gdb_xml_files="i386-64bit.xml"
7846   ;;
7847   alpha)
7848     mttcg="yes"
7849   ;;
7850   arm|armeb)
7851     TARGET_ARCH=arm
7852     bflt="yes"
7853     mttcg="yes"
7854     gdb_xml_files="arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml"
7855   ;;
7856   aarch64|aarch64_be)
7857     TARGET_ARCH=aarch64
7858     TARGET_BASE_ARCH=arm
7859     bflt="yes"
7860     mttcg="yes"
7861     gdb_xml_files="aarch64-core.xml aarch64-fpu.xml arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml"
7862   ;;
7863   cris)
7864   ;;
7865   hppa)
7866     mttcg="yes"
7867   ;;
7868   lm32)
7869   ;;
7870   m68k)
7871     bflt="yes"
7872     gdb_xml_files="cf-core.xml cf-fp.xml m68k-fp.xml"
7873   ;;
7874   microblaze|microblazeel)
7875     TARGET_ARCH=microblaze
7876     bflt="yes"
7877     echo "TARGET_ABI32=y" >> $config_target_mak
7878   ;;
7879   mips|mipsel)
7880     mttcg="yes"
7881     TARGET_ARCH=mips
7882     echo "TARGET_ABI_MIPSO32=y" >> $config_target_mak
7883   ;;
7884   mipsn32|mipsn32el)
7885     mttcg="yes"
7886     TARGET_ARCH=mips64
7887     TARGET_BASE_ARCH=mips
7888     echo "TARGET_ABI_MIPSN32=y" >> $config_target_mak
7889     echo "TARGET_ABI32=y" >> $config_target_mak
7890   ;;
7891   mips64|mips64el)
7892     mttcg="yes"
7893     TARGET_ARCH=mips64
7894     TARGET_BASE_ARCH=mips
7895     echo "TARGET_ABI_MIPSN64=y" >> $config_target_mak
7896   ;;
7897   moxie)
7898   ;;
7899   nios2)
7900   ;;
7901   or1k)
7902     TARGET_ARCH=openrisc
7903     TARGET_BASE_ARCH=openrisc
7904   ;;
7905   ppc)
7906     gdb_xml_files="power-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
7907   ;;
7908   ppc64)
7909     TARGET_BASE_ARCH=ppc
7910     TARGET_ABI_DIR=ppc
7911     mttcg=yes
7912     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7913   ;;
7914   ppc64le)
7915     TARGET_ARCH=ppc64
7916     TARGET_BASE_ARCH=ppc
7917     TARGET_ABI_DIR=ppc
7918     mttcg=yes
7919     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7920   ;;
7921   ppc64abi32)
7922     TARGET_ARCH=ppc64
7923     TARGET_BASE_ARCH=ppc
7924     TARGET_ABI_DIR=ppc
7925     echo "TARGET_ABI32=y" >> $config_target_mak
7926     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7927   ;;
7928   riscv32)
7929     TARGET_BASE_ARCH=riscv
7930     TARGET_ABI_DIR=riscv
7931     mttcg=yes
7932     gdb_xml_files="riscv-32bit-cpu.xml riscv-32bit-fpu.xml riscv-64bit-fpu.xml riscv-32bit-csr.xml riscv-32bit-virtual.xml"
7933   ;;
7934   riscv64)
7935     TARGET_BASE_ARCH=riscv
7936     TARGET_ABI_DIR=riscv
7937     mttcg=yes
7938     gdb_xml_files="riscv-64bit-cpu.xml riscv-32bit-fpu.xml riscv-64bit-fpu.xml riscv-64bit-csr.xml riscv-64bit-virtual.xml"
7939   ;;
7940   sh4|sh4eb)
7941     TARGET_ARCH=sh4
7942     bflt="yes"
7943   ;;
7944   sparc)
7945   ;;
7946   sparc64)
7947     TARGET_BASE_ARCH=sparc
7948   ;;
7949   sparc32plus)
7950     TARGET_ARCH=sparc64
7951     TARGET_BASE_ARCH=sparc
7952     TARGET_ABI_DIR=sparc
7953     echo "TARGET_ABI32=y" >> $config_target_mak
7954   ;;
7955   s390x)
7956     mttcg=yes
7957     gdb_xml_files="s390x-core64.xml s390-acr.xml s390-fpr.xml s390-vx.xml s390-cr.xml s390-virt.xml s390-gs.xml"
7958   ;;
7959   tilegx)
7960   ;;
7961   tricore)
7962   ;;
7963   unicore32)
7964   ;;
7965   xtensa|xtensaeb)
7966     TARGET_ARCH=xtensa
7967     bflt="yes"
7968     mttcg="yes"
7969   ;;
7970   *)
7971     error_exit "Unsupported target CPU"
7972   ;;
7973 esac
7974 # TARGET_BASE_ARCH needs to be defined after TARGET_ARCH
7975 if [ "$TARGET_BASE_ARCH" = "" ]; then
7976   TARGET_BASE_ARCH=$TARGET_ARCH
7977 fi
7978
7979 symlink "$source_path/Makefile.target" "$target_dir/Makefile"
7980
7981 upper() {
7982     echo "$@"| LC_ALL=C tr '[a-z]' '[A-Z]'
7983 }
7984
7985 target_arch_name="$(upper $TARGET_ARCH)"
7986 echo "TARGET_$target_arch_name=y" >> $config_target_mak
7987 echo "TARGET_NAME=$target_name" >> $config_target_mak
7988 echo "TARGET_BASE_ARCH=$TARGET_BASE_ARCH" >> $config_target_mak
7989 if [ "$TARGET_ABI_DIR" = "" ]; then
7990   TARGET_ABI_DIR=$TARGET_ARCH
7991 fi
7992 echo "TARGET_ABI_DIR=$TARGET_ABI_DIR" >> $config_target_mak
7993 if [ "$HOST_VARIANT_DIR" != "" ]; then
7994     echo "HOST_VARIANT_DIR=$HOST_VARIANT_DIR" >> $config_target_mak
7995 fi
7996
7997 if supported_xen_target $target; then
7998     echo "CONFIG_XEN=y" >> $config_target_mak
7999     echo "$target/config-devices.mak: CONFIG_XEN=y" >> $config_host_mak
8000     if test "$xen_pci_passthrough" = yes; then
8001         echo "CONFIG_XEN_PCI_PASSTHROUGH=y" >> "$config_target_mak"
8002     fi
8003 else
8004     echo "$target/config-devices.mak: CONFIG_XEN=n" >> $config_host_mak
8005 fi
8006 if supported_kvm_target $target; then
8007     echo "CONFIG_KVM=y" >> $config_target_mak
8008     echo "$target/config-devices.mak: CONFIG_KVM=y" >> $config_host_mak
8009 else
8010     echo "$target/config-devices.mak: CONFIG_KVM=n" >> $config_host_mak
8011 fi
8012 if supported_hax_target $target; then
8013     echo "CONFIG_HAX=y" >> $config_target_mak
8014 fi
8015 if supported_hvf_target $target; then
8016     echo "CONFIG_HVF=y" >> $config_target_mak
8017 fi
8018 if supported_whpx_target $target; then
8019     echo "CONFIG_WHPX=y" >> $config_target_mak
8020 fi
8021 if test "$target_aligned_only" = "yes" ; then
8022   echo "TARGET_ALIGNED_ONLY=y" >> $config_target_mak
8023 fi
8024 if test "$target_bigendian" = "yes" ; then
8025   echo "TARGET_WORDS_BIGENDIAN=y" >> $config_target_mak
8026 fi
8027 if test "$target_softmmu" = "yes" ; then
8028   echo "CONFIG_SOFTMMU=y" >> $config_target_mak
8029   if test "$mttcg" = "yes" ; then
8030     echo "TARGET_SUPPORTS_MTTCG=y" >> $config_target_mak
8031   fi
8032 fi
8033 if test "$target_user_only" = "yes" ; then
8034   echo "CONFIG_USER_ONLY=y" >> $config_target_mak
8035   echo "CONFIG_QEMU_INTERP_PREFIX=\"$interp_prefix1\"" >> $config_target_mak
8036 fi
8037 if test "$target_linux_user" = "yes" ; then
8038   echo "CONFIG_LINUX_USER=y" >> $config_target_mak
8039 fi
8040 list=""
8041 if test ! -z "$gdb_xml_files" ; then
8042   for x in $gdb_xml_files; do
8043     list="$list $source_path/gdb-xml/$x"
8044   done
8045   echo "TARGET_XML_FILES=$list" >> $config_target_mak
8046 fi
8047
8048 if test "$target_user_only" = "yes" && test "$bflt" = "yes"; then
8049   echo "TARGET_HAS_BFLT=y" >> $config_target_mak
8050 fi
8051 if test "$target_bsd_user" = "yes" ; then
8052   echo "CONFIG_BSD_USER=y" >> $config_target_mak
8053 fi
8054
8055
8056 # generate QEMU_CFLAGS/QEMU_LDFLAGS for targets
8057
8058 cflags=""
8059 ldflags=""
8060
8061 disas_config() {
8062   echo "CONFIG_${1}_DIS=y" >> $config_target_mak
8063   echo "CONFIG_${1}_DIS=y" >> config-all-disas.mak
8064 }
8065
8066 for i in $ARCH $TARGET_BASE_ARCH ; do
8067   case "$i" in
8068   alpha)
8069     disas_config "ALPHA"
8070   ;;
8071   aarch64)
8072     if test -n "${cxx}"; then
8073       disas_config "ARM_A64"
8074     fi
8075   ;;
8076   arm)
8077     disas_config "ARM"
8078     if test -n "${cxx}"; then
8079       disas_config "ARM_A64"
8080     fi
8081   ;;
8082   cris)
8083     disas_config "CRIS"
8084   ;;
8085   hppa)
8086     disas_config "HPPA"
8087   ;;
8088   i386|x86_64|x32)
8089     disas_config "I386"
8090   ;;
8091   lm32)
8092     disas_config "LM32"
8093   ;;
8094   m68k)
8095     disas_config "M68K"
8096   ;;
8097   microblaze*)
8098     disas_config "MICROBLAZE"
8099   ;;
8100   mips*)
8101     disas_config "MIPS"
8102     if test -n "${cxx}"; then
8103       disas_config "NANOMIPS"
8104     fi
8105   ;;
8106   moxie*)
8107     disas_config "MOXIE"
8108   ;;
8109   nios2)
8110     disas_config "NIOS2"
8111   ;;
8112   or1k)
8113     disas_config "OPENRISC"
8114   ;;
8115   ppc*)
8116     disas_config "PPC"
8117   ;;
8118   riscv*)
8119     disas_config "RISCV"
8120   ;;
8121   s390*)
8122     disas_config "S390"
8123   ;;
8124   sh4)
8125     disas_config "SH4"
8126   ;;
8127   sparc*)
8128     disas_config "SPARC"
8129   ;;
8130   xtensa*)
8131     disas_config "XTENSA"
8132   ;;
8133   esac
8134 done
8135 if test "$tcg_interpreter" = "yes" ; then
8136   disas_config "TCI"
8137 fi
8138
8139 case "$ARCH" in
8140 alpha)
8141   # Ensure there's only a single GP
8142   cflags="-msmall-data $cflags"
8143 ;;
8144 esac
8145
8146 if test "$gprof" = "yes" ; then
8147   if test "$target_linux_user" = "yes" ; then
8148     cflags="-p $cflags"
8149     ldflags="-p $ldflags"
8150   fi
8151   if test "$target_softmmu" = "yes" ; then
8152     ldflags="-p $ldflags"
8153     echo "GPROF_CFLAGS=-p" >> $config_target_mak
8154   fi
8155 fi
8156
8157 if test "$target_linux_user" = "yes" || test "$target_bsd_user" = "yes" ; then
8158   ldflags="$ldflags $textseg_ldflags"
8159 fi
8160
8161 # Newer kernels on s390 check for an S390_PGSTE program header and
8162 # enable the pgste page table extensions in that case. This makes
8163 # the vm.allocate_pgste sysctl unnecessary. We enable this program
8164 # header if
8165 #  - we build on s390x
8166 #  - we build the system emulation for s390x (qemu-system-s390x)
8167 #  - KVM is enabled
8168 #  - the linker supports --s390-pgste
8169 if test "$TARGET_ARCH" = "s390x" && test "$target_softmmu" = "yes" && \
8170         test "$ARCH" = "s390x" && test "$kvm" = "yes"; then
8171     if ld_has --s390-pgste ; then
8172         ldflags="-Wl,--s390-pgste $ldflags"
8173     fi
8174 fi
8175
8176 echo "QEMU_LDFLAGS+=$ldflags" >> $config_target_mak
8177 echo "QEMU_CFLAGS+=$cflags" >> $config_target_mak
8178
8179 done # for target in $targets
8180
8181 echo "PIXMAN_CFLAGS=$pixman_cflags" >> $config_host_mak
8182 echo "PIXMAN_LIBS=$pixman_libs" >> $config_host_mak
8183
8184 if [ "$fdt" = "git" ]; then
8185   echo "config-host.h: dtc/all" >> $config_host_mak
8186 fi
8187 if [ "$capstone" = "git" -o "$capstone" = "internal" ]; then
8188   echo "config-host.h: capstone/all" >> $config_host_mak
8189 fi
8190 if test -n "$LIBCAPSTONE"; then
8191   echo "LIBCAPSTONE=$LIBCAPSTONE" >> $config_host_mak
8192 fi
8193
8194 if test "$numa" = "yes"; then
8195   echo "CONFIG_NUMA=y" >> $config_host_mak
8196 fi
8197
8198 if test "$ccache_cpp2" = "yes"; then
8199   echo "export CCACHE_CPP2=y" >> $config_host_mak
8200 fi
8201
8202 # If we're using a separate build tree, set it up now.
8203 # DIRS are directories which we simply mkdir in the build tree;
8204 # LINKS are things to symlink back into the source tree
8205 # (these can be both files and directories).
8206 # Caution: do not add files or directories here using wildcards. This
8207 # will result in problems later if a new file matching the wildcard is
8208 # added to the source tree -- nothing will cause configure to be rerun
8209 # so the build tree will be missing the link back to the new file, and
8210 # tests might fail. Prefer to keep the relevant files in their own
8211 # directory and symlink the directory instead.
8212 DIRS="tests tests/tcg tests/tcg/lm32 tests/qapi-schema tests/qtest/libqos"
8213 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
8214 DIRS="$DIRS docs docs/interop fsdev scsi"
8215 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
8216 DIRS="$DIRS roms/seabios roms/vgabios"
8217 LINKS="Makefile"
8218 LINKS="$LINKS tests/tcg/lm32/Makefile po/Makefile"
8219 LINKS="$LINKS tests/tcg/Makefile.target tests/fp/Makefile"
8220 LINKS="$LINKS tests/plugin/Makefile"
8221 LINKS="$LINKS pc-bios/optionrom/Makefile pc-bios/keymaps"
8222 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
8223 LINKS="$LINKS roms/seabios/Makefile roms/vgabios/Makefile"
8224 LINKS="$LINKS pc-bios/qemu-icon.bmp"
8225 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
8226 LINKS="$LINKS tests/acceptance tests/data"
8227 LINKS="$LINKS tests/qemu-iotests/check"
8228 LINKS="$LINKS python"
8229 for bios_file in \
8230     $source_path/pc-bios/*.bin \
8231     $source_path/pc-bios/*.lid \
8232     $source_path/pc-bios/*.rom \
8233     $source_path/pc-bios/*.dtb \
8234     $source_path/pc-bios/*.img \
8235     $source_path/pc-bios/openbios-* \
8236     $source_path/pc-bios/u-boot.* \
8237     $source_path/pc-bios/edk2-*.fd.bz2 \
8238     $source_path/pc-bios/palcode-*
8239 do
8240     LINKS="$LINKS pc-bios/$(basename $bios_file)"
8241 done
8242 mkdir -p $DIRS
8243 for f in $LINKS ; do
8244     if [ -e "$source_path/$f" ] && [ "$pwd_is_source_path" != "y" ]; then
8245         symlink "$source_path/$f" "$f"
8246     fi
8247 done
8248
8249 (for i in $cross_cc_vars; do
8250   export $i
8251 done
8252 export target_list source_path use_containers
8253 $source_path/tests/tcg/configure.sh)
8254
8255 # temporary config to build submodules
8256 for rom in seabios vgabios ; do
8257     config_mak=roms/$rom/config.mak
8258     echo "# Automatically generated by configure - do not modify" > $config_mak
8259     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
8260     echo "AS=$as" >> $config_mak
8261     echo "CCAS=$ccas" >> $config_mak
8262     echo "CC=$cc" >> $config_mak
8263     echo "BCC=bcc" >> $config_mak
8264     echo "CPP=$cpp" >> $config_mak
8265     echo "OBJCOPY=objcopy" >> $config_mak
8266     echo "IASL=$iasl" >> $config_mak
8267     echo "LD=$ld" >> $config_mak
8268     echo "RANLIB=$ranlib" >> $config_mak
8269 done
8270
8271 # set up qemu-iotests in this build directory
8272 iotests_common_env="tests/qemu-iotests/common.env"
8273
8274 echo "# Automatically generated by configure - do not modify" > "$iotests_common_env"
8275 echo >> "$iotests_common_env"
8276 echo "export PYTHON='$python'" >> "$iotests_common_env"
8277
8278 # Save the configure command line for later reuse.
8279 cat <<EOD >config.status
8280 #!/bin/sh
8281 # Generated by configure.
8282 # Run this file to recreate the current configuration.
8283 # Compiler output produced by configure, useful for debugging
8284 # configure, is in config.log if it exists.
8285 EOD
8286
8287 preserve_env() {
8288     envname=$1
8289
8290     eval envval=\$$envname
8291
8292     if test -n "$envval"
8293     then
8294         echo "$envname='$envval'" >> config.status
8295         echo "export $envname" >> config.status
8296     else
8297         echo "unset $envname" >> config.status
8298     fi
8299 }
8300
8301 # Preserve various env variables that influence what
8302 # features/build target configure will detect
8303 preserve_env AR
8304 preserve_env AS
8305 preserve_env CC
8306 preserve_env CPP
8307 preserve_env CXX
8308 preserve_env INSTALL
8309 preserve_env LD
8310 preserve_env LD_LIBRARY_PATH
8311 preserve_env LIBTOOL
8312 preserve_env MAKE
8313 preserve_env NM
8314 preserve_env OBJCOPY
8315 preserve_env PATH
8316 preserve_env PKG_CONFIG
8317 preserve_env PKG_CONFIG_LIBDIR
8318 preserve_env PKG_CONFIG_PATH
8319 preserve_env PYTHON
8320 preserve_env SDL2_CONFIG
8321 preserve_env SMBD
8322 preserve_env STRIP
8323 preserve_env WINDRES
8324
8325 printf "exec" >>config.status
8326 printf " '%s'" "$0" "$@" >>config.status
8327 echo ' "$@"' >>config.status
8328 chmod +x config.status
8329
8330 rm -r "$TMPDIR1"