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
  34 rm -f config.log
  35
  36 # Print a helpful header at the top of config.log
  37 echo "# QEMU configure log $(date)" >> config.log
  38 printf "# Configured with:" >> config.log
  39 printf " '%s'" "$0" "$@" >> config.log
  40 echo >> config.log
  41 echo "#" >> config.log
  42
  43 print_error() {
  44     (echo
  45     echo "ERROR: $1"
  46     while test -n "$2"; do
  47         echo "       $2"
  48         shift
  49     done
  50     echo) >&2
  51 }
  52
  53 error_exit() {
  54     print_error "$@"
  55     exit 1
  56 }
  57
  58 do_compiler() {
  59     # Run the compiler, capturing its output to the log. First argument
  60     # is compiler binary to execute.
  61     local compiler="$1"
  62     shift
  63     if test -n "$BASH_VERSION"; then eval '
  64         echo >>config.log "
  65 funcs: ${FUNCNAME[*]}
  66 lines: ${BASH_LINENO[*]}"
  67     '; fi
  68     echo $compiler "$@" >> config.log
  69     $compiler "$@" >> config.log 2>&1 || return $?
  70     # Test passed. If this is an --enable-werror build, rerun
  71     # the test with -Werror and bail out if it fails. This
  72     # makes warning-generating-errors in configure test code
  73     # obvious to developers.
  74     if test "$werror" != "yes"; then
  75         return 0
  76     fi
  77     # Don't bother rerunning the compile if we were already using -Werror
  78     case "$*" in
  79         *-Werror*)
  80            return 0
  81         ;;
  82     esac
  83     echo $compiler -Werror "$@" >> config.log
  84     $compiler -Werror "$@" >> config.log 2>&1 && return $?
  85     error_exit "configure test passed without -Werror but failed with -Werror." \
  86         "This is probably a bug in the configure script. The failing command" \
  87         "will be at the bottom of config.log." \
  88         "You can run configure with --disable-werror to bypass this check."
  89 }
  90
  91 do_cc() {
  92     do_compiler "$cc" "$@"
  93 }
  94
  95 do_cxx() {
  96     do_compiler "$cxx" "$@"
  97 }
  98
  99 update_cxxflags() {
 100     # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
 101     # options which some versions of GCC's C++ compiler complain about
 102     # because they only make sense for C programs.
 103     QEMU_CXXFLAGS="$QEMU_CXXFLAGS -D__STDC_LIMIT_MACROS"
 104
 105     for arg in $QEMU_CFLAGS; do
 106         case $arg in
 107             -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
 108             -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
 109                 ;;
 110             -std=gnu99)
 111                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }"-std=gnu++98"
 112                 ;;
 113             *)
 114                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
 115                 ;;
 116         esac
 117     done
 118 }
 119
 120 compile_object() {
 121   local_cflags="$1"
 122   do_cc $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 123 }
 124
 125 compile_prog() {
 126   local_cflags="$1"
 127   local_ldflags="$2"
 128   do_cc $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC $LDFLAGS $local_ldflags
 129 }
 130
 131 # symbolically link $1 to $2.  Portable version of "ln -sf".
 132 symlink() {
 133   rm -rf "$2"
 134   mkdir -p "$(dirname "$2")"
 135   ln -s "$1" "$2"
 136 }
 137
 138 # check whether a command is available to this shell (may be either an
 139 # executable or a builtin)
 140 has() {
 141     type "$1" >/dev/null 2>&1
 142 }
 143
 144 # search for an executable in PATH
 145 path_of() {
 146     local_command="$1"
 147     local_ifs="$IFS"
 148     local_dir=""
 149
 150     # pathname has a dir component?
 151     if [ "${local_command#*/}" != "$local_command" ]; then
 152         if [ -x "$local_command" ] && [ ! -d "$local_command" ]; then
 153             echo "$local_command"
 154             return 0
 155         fi
 156     fi
 157     if [ -z "$local_command" ]; then
 158         return 1
 159     fi
 160
 161     IFS=:
 162     for local_dir in $PATH; do
 163         if [ -x "$local_dir/$local_command" ] && [ ! -d "$local_dir/$local_command" ]; then
 164             echo "$local_dir/$local_command"
 165             IFS="${local_ifs:-$(printf ' \t\n')}"
 166             return 0
 167         fi
 168     done
 169     # not found
 170     IFS="${local_ifs:-$(printf ' \t\n')}"
 171     return 1
 172 }
 173
 174 have_backend () {
 175     echo "$trace_backends" | grep "$1" >/dev/null
 176 }
 177
 178 glob() {
 179     eval test -z '"${1#'"$2"'}"'
 180 }
 181
 182 supported_hax_target() {
 183     test "$hax" = "yes" || return 1
 184     glob "$1" "*-softmmu" || return 1
 185     case "${1%-softmmu}" in
 186         i386|x86_64)
 187             return 0
 188         ;;
 189     esac
 190     return 1
 191 }
 192
 193 supported_kvm_target() {
 194     test "$kvm" = "yes" || return 1
 195     glob "$1" "*-softmmu" || return 1
 196     case "${1%-softmmu}:$cpu" in
 197         arm:arm | aarch64:aarch64 | \
 198         i386:i386 | i386:x86_64 | i386:x32 | \
 199         x86_64:i386 | x86_64:x86_64 | x86_64:x32 | \
 200         mips:mips | mipsel:mips | \
 201         ppc:ppc | ppc64:ppc | ppc:ppc64 | ppc64:ppc64 | ppc64:ppc64le | \
 202         s390x:s390x)
 203             return 0
 204         ;;
 205     esac
 206     return 1
 207 }
 208
 209 supported_xen_target() {
 210     test "$xen" = "yes" || return 1
 211     glob "$1" "*-softmmu" || return 1
 212     # Only i386 and x86_64 provide the xenpv machine.
 213     case "${1%-softmmu}" in
 214         i386|x86_64)
 215             return 0
 216         ;;
 217     esac
 218     return 1
 219 }
 220
 221 supported_hvf_target() {
 222     test "$hvf" = "yes" || return 1
 223     glob "$1" "*-softmmu" || return 1
 224     case "${1%-softmmu}" in
 225         x86_64)
 226             return 0
 227         ;;
 228     esac
 229     return 1
 230 }
 231
 232 supported_whpx_target() {
 233     test "$whpx" = "yes" || return 1
 234     glob "$1" "*-softmmu" || return 1
 235     case "${1%-softmmu}" in
 236         i386|x86_64)
 237             return 0
 238         ;;
 239     esac
 240     return 1
 241 }
 242
 243 supported_target() {
 244     case "$1" in
 245         *-softmmu)
 246             ;;
 247         *-linux-user)
 248             if test "$linux" != "yes"; then
 249                 print_error "Target '$target' is only available on a Linux host"
 250                 return 1
 251             fi
 252             ;;
 253         *-bsd-user)
 254             if test "$bsd" != "yes"; then
 255                 print_error "Target '$target' is only available on a BSD host"
 256                 return 1
 257             fi
 258             ;;
 259         *)
 260             print_error "Invalid target name '$target'"
 261             return 1
 262             ;;
 263     esac
 264     test "$tcg" = "yes" && return 0
 265     supported_kvm_target "$1" && return 0
 266     supported_xen_target "$1" && return 0
 267     supported_hax_target "$1" && return 0
 268     supported_hvf_target "$1" && return 0
 269     supported_whpx_target "$1" && return 0
 270     print_error "TCG disabled, but hardware accelerator not available for '$target'"
 271     return 1
 272 }
 273
 274
 275 ld_has() {
 276     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 277 }
 278
 279 # default parameters
 280 source_path=$(dirname "$0")
 281 # make source path absolute
 282 source_path=$(cd "$source_path"; pwd)
 283 cpu=""
 284 iasl="iasl"
 285 interp_prefix="/usr/gnemul/qemu-%M"
 286 static="no"
 287 cross_prefix=""
 288 audio_drv_list=""
 289 block_drv_rw_whitelist=""
 290 block_drv_ro_whitelist=""
 291 host_cc="cc"
 292 libs_softmmu=""
 293 libs_tools=""
 294 audio_pt_int=""
 295 audio_win_int=""
 296 libs_qga=""
 297 debug_info="yes"
 298 stack_protector=""
 299
 300 if test -e "$source_path/.git"
 301 then
 302     git_update=yes
 303     git_submodules="ui/keycodemapdb"
 304     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
 305     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
 306 else
 307     git_update=no
 308     git_submodules=""
 309
 310     if ! test -f "$source_path/ui/keycodemapdb/README"
 311     then
 312         echo
 313         echo "ERROR: missing file $source_path/ui/keycodemapdb/README"
 314         echo
 315         echo "This is not a GIT checkout but module content appears to"
 316         echo "be missing. Do not use 'git archive' or GitHub download links"
 317         echo "to acquire QEMU source archives. Non-GIT builds are only"
 318         echo "supported with source archives linked from:"
 319         echo
 320         echo "  https://www.qemu.org/download/"
 321         echo
 322         echo "Developers working with GIT can use scripts/archive-source.sh"
 323         echo "if they need to create valid source archives."
 324         echo
 325         exit 1
 326     fi
 327 fi
 328 git="git"
 329
 330 # Don't accept a target_list environment variable.
 331 unset target_list
 332 unset target_list_exclude
 333
 334 # Default value for a variable defining feature "foo".
 335 #  * foo="no"  feature will only be used if --enable-foo arg is given
 336 #  * foo=""    feature will be searched for, and if found, will be used
 337 #              unless --disable-foo is given
 338 #  * foo="yes" this value will only be set by --enable-foo flag.
 339 #              feature will searched for,
 340 #              if not found, configure exits with error
 341 #
 342 # Always add --enable-foo and --disable-foo command line args.
 343 # Distributions want to ensure that several features are compiled in, and it
 344 # is impossible without a --enable-foo that exits if a feature is not found.
 345
 346 bluez=""
 347 brlapi=""
 348 curl=""
 349 curses=""
 350 docs=""
 351 fdt=""
 352 netmap="no"
 353 sdl=""
 354 sdl_image=""
 355 virtfs=""
 356 mpath=""
 357 vnc="yes"
 358 sparse="no"
 359 vde=""
 360 vnc_sasl=""
 361 vnc_jpeg=""
 362 vnc_png=""
 363 xkbcommon=""
 364 xen=""
 365 xen_ctrl_version=""
 366 xen_pci_passthrough=""
 367 linux_aio=""
 368 cap_ng=""
 369 attr=""
 370 libattr=""
 371 xfs=""
 372 tcg="yes"
 373 membarrier=""
 374 vhost_net=""
 375 vhost_crypto=""
 376 vhost_scsi=""
 377 vhost_vsock=""
 378 vhost_user=""
 379 kvm="no"
 380 hax="no"
 381 hvf="no"
 382 whpx="no"
 383 rdma=""
 384 pvrdma=""
 385 gprof="no"
 386 debug_tcg="no"
 387 debug="no"
 388 sanitizers="no"
 389 fortify_source=""
 390 strip_opt="yes"
 391 tcg_interpreter="no"
 392 bigendian="no"
 393 mingw32="no"
 394 gcov="no"
 395 gcov_tool="gcov"
 396 EXESUF=""
 397 DSOSUF=".so"
 398 LDFLAGS_SHARED="-shared"
 399 modules="no"
 400 prefix="/usr/local"
 401 mandir="\${prefix}/share/man"
 402 datadir="\${prefix}/share"
 403 firmwarepath="\${prefix}/share/qemu-firmware"
 404 qemu_docdir="\${prefix}/share/doc/qemu"
 405 bindir="\${prefix}/bin"
 406 libdir="\${prefix}/lib"
 407 libexecdir="\${prefix}/libexec"
 408 includedir="\${prefix}/include"
 409 sysconfdir="\${prefix}/etc"
 410 local_statedir="\${prefix}/var"
 411 confsuffix="/qemu"
 412 slirp=""
 413 oss_lib=""
 414 bsd="no"
 415 linux="no"
 416 solaris="no"
 417 profiler="no"
 418 cocoa="no"
 419 softmmu="yes"
 420 linux_user="no"
 421 bsd_user="no"
 422 blobs="yes"
 423 pkgversion=""
 424 pie=""
 425 qom_cast_debug="yes"
 426 trace_backends="log"
 427 trace_file="trace"
 428 spice=""
 429 rbd=""
 430 smartcard=""
 431 libusb=""
 432 usb_redir=""
 433 opengl=""
 434 opengl_dmabuf="no"
 435 cpuid_h="no"
 436 avx2_opt=""
 437 zlib="yes"
 438 capstone=""
 439 lzo=""
 440 snappy=""
 441 bzip2=""
 442 lzfse=""
 443 guest_agent=""
 444 guest_agent_with_vss="no"
 445 guest_agent_ntddscsi="no"
 446 guest_agent_msi=""
 447 vss_win32_sdk=""
 448 win_sdk="no"
 449 want_tools="yes"
 450 libiscsi=""
 451 libnfs=""
 452 coroutine=""
 453 coroutine_pool=""
 454 debug_stack_usage="no"
 455 crypto_afalg="no"
 456 seccomp=""
 457 glusterfs=""
 458 glusterfs_xlator_opt="no"
 459 glusterfs_discard="no"
 460 glusterfs_fallocate="no"
 461 glusterfs_zerofill="no"
 462 glusterfs_ftruncate_has_stat="no"
 463 glusterfs_iocb_has_stat="no"
 464 gtk=""
 465 gtk_gl="no"
 466 tls_priority="NORMAL"
 467 gnutls=""
 468 nettle=""
 469 gcrypt=""
 470 gcrypt_hmac="no"
 471 auth_pam=""
 472 vte=""
 473 virglrenderer=""
 474 tpm=""
 475 libssh2=""
 476 live_block_migration="yes"
 477 numa=""
 478 tcmalloc="no"
 479 jemalloc="no"
 480 replication="yes"
 481 vxhs=""
 482 bochs="yes"
 483 cloop="yes"
 484 dmg="yes"
 485 qcow1="yes"
 486 vdi="yes"
 487 vvfat="yes"
 488 qed="yes"
 489 parallels="yes"
 490 sheepdog="yes"
 491 libxml2=""
 492 docker="no"
 493 debug_mutex="no"
 494 libpmem=""
 495 default_devices="yes"
 496
 497 # cross compilers defaults, can be overridden with --cross-cc-ARCH
 498 cross_cc_aarch64="aarch64-linux-gnu-gcc"
 499 cross_cc_aarch64_be="$cross_cc_aarch64"
 500 cross_cc_cflags_aarch64_be="-mbig-endian"
 501 cross_cc_arm="arm-linux-gnueabihf-gcc"
 502 cross_cc_cflags_armeb="-mbig-endian"
 503 cross_cc_i386="i386-pc-linux-gnu-gcc"
 504 cross_cc_cflags_i386=""
 505 cross_cc_ppc="powerpc-linux-gnu-gcc"
 506 cross_cc_cflags_ppc="-m32"
 507 cross_cc_ppc64="powerpc-linux-gnu-gcc"
 508 cross_cc_cflags_ppc64="-m64"
 509 cross_cc_ppc64le="powerpc64le-linux-gnu-gcc"
 510
 511 enabled_cross_compilers=""
 512
 513 supported_cpu="no"
 514 supported_os="no"
 515 bogus_os="no"
 516 malloc_trim=""
 517
 518 # parse CC options first
 519 for opt do
 520   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 521   case "$opt" in
 522   --cross-prefix=*) cross_prefix="$optarg"
 523   ;;
 524   --cc=*) CC="$optarg"
 525   ;;
 526   --cxx=*) CXX="$optarg"
 527   ;;
 528   --cpu=*) cpu="$optarg"
 529   ;;
 530   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 531   ;;
 532   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 533   ;;
 534   --extra-ldflags=*) LDFLAGS="$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_${cc_arch}=\$optarg"
 545   ;;
 546   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 547                 eval "cross_cc_${cc_arch}=\$optarg"
 548   ;;
 549   esac
 550 done
 551 # OS specific
 552 # Using uname is really, really broken.  Once we have the right set of checks
 553 # we can eliminate its usage altogether.
 554
 555 # Preferred compiler:
 556 #  ${CC} (if set)
 557 #  ${cross_prefix}gcc (if cross-prefix specified)
 558 #  system compiler
 559 if test -z "${CC}${cross_prefix}"; then
 560   cc="$host_cc"
 561 else
 562   cc="${CC-${cross_prefix}gcc}"
 563 fi
 564
 565 if test -z "${CXX}${cross_prefix}"; then
 566   cxx="c++"
 567 else
 568   cxx="${CXX-${cross_prefix}g++}"
 569 fi
 570
 571 ar="${AR-${cross_prefix}ar}"
 572 as="${AS-${cross_prefix}as}"
 573 ccas="${CCAS-$cc}"
 574 cpp="${CPP-$cc -E}"
 575 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 576 ld="${LD-${cross_prefix}ld}"
 577 ranlib="${RANLIB-${cross_prefix}ranlib}"
 578 nm="${NM-${cross_prefix}nm}"
 579 strip="${STRIP-${cross_prefix}strip}"
 580 windres="${WINDRES-${cross_prefix}windres}"
 581 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 582 query_pkg_config() {
 583     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 584 }
 585 pkg_config=query_pkg_config
 586 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 587
 588 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 589 ARFLAGS="${ARFLAGS-rv}"
 590
 591 # default flags for all hosts
 592 # We use -fwrapv to tell the compiler that we require a C dialect where
 593 # left shift of signed integers is well defined and has the expected
 594 # 2s-complement style results. (Both clang and gcc agree that it
 595 # provides these semantics.)
 596 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv -std=gnu99 $QEMU_CFLAGS"
 597 QEMU_CFLAGS="-Wall -Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 598 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 599 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 600 QEMU_INCLUDES="-iquote . -iquote \$(SRC_PATH) -iquote \$(SRC_PATH)/accel/tcg -iquote \$(SRC_PATH)/include"
 601 if test "$debug_info" = "yes"; then
 602     CFLAGS="-g $CFLAGS"
 603     LDFLAGS="-g $LDFLAGS"
 604 fi
 605
 606 # running configure in the source tree?
 607 # we know that's the case if configure is there.
 608 if test -f "./configure"; then
 609     pwd_is_source_path="y"
 610 else
 611     pwd_is_source_path="n"
 612 fi
 613
 614 check_define() {
 615 cat > $TMPC <<EOF
 616 #if !defined($1)
 617 #error $1 not defined
 618 #endif
 619 int main(void) { return 0; }
 620 EOF
 621   compile_object
 622 }
 623
 624 check_include() {
 625 cat > $TMPC <<EOF
 626 #include <$1>
 627 int main(void) { return 0; }
 628 EOF
 629   compile_object
 630 }
 631
 632 write_c_skeleton() {
 633     cat > $TMPC <<EOF
 634 int main(void) { return 0; }
 635 EOF
 636 }
 637
 638 if check_define __linux__ ; then
 639   targetos="Linux"
 640 elif check_define _WIN32 ; then
 641   targetos='MINGW32'
 642 elif check_define __OpenBSD__ ; then
 643   targetos='OpenBSD'
 644 elif check_define __sun__ ; then
 645   targetos='SunOS'
 646 elif check_define __HAIKU__ ; then
 647   targetos='Haiku'
 648 elif check_define __FreeBSD__ ; then
 649   targetos='FreeBSD'
 650 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 651   targetos='GNU/kFreeBSD'
 652 elif check_define __DragonFly__ ; then
 653   targetos='DragonFly'
 654 elif check_define __NetBSD__; then
 655   targetos='NetBSD'
 656 elif check_define __APPLE__; then
 657   targetos='Darwin'
 658 else
 659   # This is a fatal error, but don't report it yet, because we
 660   # might be going to just print the --help text, or it might
 661   # be the result of a missing compiler.
 662   targetos='bogus'
 663   bogus_os='yes'
 664 fi
 665
 666 # Some host OSes need non-standard checks for which CPU to use.
 667 # Note that these checks are broken for cross-compilation: if you're
 668 # cross-compiling to one of these OSes then you'll need to specify
 669 # the correct CPU with the --cpu option.
 670 case $targetos in
 671 Darwin)
 672   # on Leopard most of the system is 32-bit, so we have to ask the kernel if we can
 673   # run 64-bit userspace code.
 674   # If the user didn't specify a CPU explicitly and the kernel says this is
 675   # 64 bit hw, then assume x86_64. Otherwise fall through to the usual detection code.
 676   if test -z "$cpu" && test "$(sysctl -n hw.optional.x86_64)" = "1"; then
 677     cpu="x86_64"
 678   fi
 679   ;;
 680 SunOS)
 681   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 682   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 683     cpu="x86_64"
 684   fi
 685 esac
 686
 687 if test ! -z "$cpu" ; then
 688   # command line argument
 689   :
 690 elif check_define __i386__ ; then
 691   cpu="i386"
 692 elif check_define __x86_64__ ; then
 693   if check_define __ILP32__ ; then
 694     cpu="x32"
 695   else
 696     cpu="x86_64"
 697   fi
 698 elif check_define __sparc__ ; then
 699   if check_define __arch64__ ; then
 700     cpu="sparc64"
 701   else
 702     cpu="sparc"
 703   fi
 704 elif check_define _ARCH_PPC ; then
 705   if check_define _ARCH_PPC64 ; then
 706     if check_define _LITTLE_ENDIAN ; then
 707       cpu="ppc64le"
 708     else
 709       cpu="ppc64"
 710     fi
 711   else
 712     cpu="ppc"
 713   fi
 714 elif check_define __mips__ ; then
 715   cpu="mips"
 716 elif check_define __s390__ ; then
 717   if check_define __s390x__ ; then
 718     cpu="s390x"
 719   else
 720     cpu="s390"
 721   fi
 722 elif check_define __riscv ; then
 723   if check_define _LP64 ; then
 724     cpu="riscv64"
 725   else
 726     cpu="riscv32"
 727   fi
 728 elif check_define __arm__ ; then
 729   cpu="arm"
 730 elif check_define __aarch64__ ; then
 731   cpu="aarch64"
 732 else
 733   cpu=$(uname -m)
 734 fi
 735
 736 ARCH=
 737 # Normalise host CPU name and set ARCH.
 738 # Note that this case should only have supported host CPUs, not guests.
 739 case "$cpu" in
 740   ppc|ppc64|s390|s390x|sparc64|x32|riscv32|riscv64)
 741     supported_cpu="yes"
 742     eval "cross_cc_${cpu}=\$host_cc"
 743   ;;
 744   ppc64le)
 745     ARCH="ppc64"
 746     supported_cpu="yes"
 747     cross_cc_ppc64le=$host_cc
 748   ;;
 749   i386|i486|i586|i686|i86pc|BePC)
 750     cpu="i386"
 751     supported_cpu="yes"
 752     cross_cc_i386=$host_cc
 753   ;;
 754   x86_64|amd64)
 755     cpu="x86_64"
 756     supported_cpu="yes"
 757     cross_cc_x86_64=$host_cc
 758   ;;
 759   armv*b|armv*l|arm)
 760     cpu="arm"
 761     supported_cpu="yes"
 762     cross_cc_arm=$host_cc
 763   ;;
 764   aarch64)
 765     cpu="aarch64"
 766     supported_cpu="yes"
 767     cross_cc_aarch64=$host_cc
 768   ;;
 769   mips*)
 770     cpu="mips"
 771     supported_cpu="yes"
 772     cross_cc_mips=$host_cc
 773   ;;
 774   sparc|sun4[cdmuv])
 775     cpu="sparc"
 776     supported_cpu="yes"
 777     cross_cc_sparc=$host_cc
 778   ;;
 779   *)
 780     # This will result in either an error or falling back to TCI later
 781     ARCH=unknown
 782   ;;
 783 esac
 784 if test -z "$ARCH"; then
 785   ARCH="$cpu"
 786 fi
 787
 788 # OS specific
 789
 790 # host *BSD for user mode
 791 HOST_VARIANT_DIR=""
 792
 793 case $targetos in
 794 MINGW32*)
 795   mingw32="yes"
 796   hax="yes"
 797   vhost_user="no"
 798   audio_possible_drivers="dsound sdl"
 799   if check_include dsound.h; then
 800     audio_drv_list="dsound"
 801   else
 802     audio_drv_list=""
 803   fi
 804   supported_os="yes"
 805 ;;
 806 GNU/kFreeBSD)
 807   bsd="yes"
 808   audio_drv_list="oss try-sdl"
 809   audio_possible_drivers="oss sdl pa"
 810 ;;
 811 FreeBSD)
 812   bsd="yes"
 813   make="${MAKE-gmake}"
 814   audio_drv_list="oss try-sdl"
 815   audio_possible_drivers="oss sdl pa"
 816   # needed for kinfo_getvmmap(3) in libutil.h
 817   LIBS="-lutil $LIBS"
 818   # needed for kinfo_getproc
 819   libs_qga="-lutil $libs_qga"
 820   netmap=""  # enable netmap autodetect
 821   HOST_VARIANT_DIR="freebsd"
 822   supported_os="yes"
 823 ;;
 824 DragonFly)
 825   bsd="yes"
 826   make="${MAKE-gmake}"
 827   audio_drv_list="oss try-sdl"
 828   audio_possible_drivers="oss sdl pa"
 829   HOST_VARIANT_DIR="dragonfly"
 830 ;;
 831 NetBSD)
 832   bsd="yes"
 833   hax="yes"
 834   make="${MAKE-gmake}"
 835   audio_drv_list="oss try-sdl"
 836   audio_possible_drivers="oss sdl"
 837   oss_lib="-lossaudio"
 838   HOST_VARIANT_DIR="netbsd"
 839   supported_os="yes"
 840 ;;
 841 OpenBSD)
 842   bsd="yes"
 843   make="${MAKE-gmake}"
 844   audio_drv_list="try-sdl"
 845   audio_possible_drivers="sdl"
 846   HOST_VARIANT_DIR="openbsd"
 847   supported_os="yes"
 848 ;;
 849 Darwin)
 850   bsd="yes"
 851   darwin="yes"
 852   hax="yes"
 853   hvf="yes"
 854   LDFLAGS_SHARED="-bundle -undefined dynamic_lookup"
 855   if [ "$cpu" = "x86_64" ] ; then
 856     QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
 857     LDFLAGS="-arch x86_64 $LDFLAGS"
 858   fi
 859   cocoa="yes"
 860   audio_drv_list="coreaudio try-sdl"
 861   audio_possible_drivers="coreaudio sdl"
 862   LDFLAGS="-framework CoreFoundation -framework IOKit $LDFLAGS"
 863   libs_softmmu="-F/System/Library/Frameworks -framework Cocoa -framework IOKit $libs_softmmu"
 864   # Disable attempts to use ObjectiveC features in os/object.h since they
 865   # won't work when we're compiling with gcc as a C compiler.
 866   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 867   HOST_VARIANT_DIR="darwin"
 868   supported_os="yes"
 869 ;;
 870 SunOS)
 871   solaris="yes"
 872   make="${MAKE-gmake}"
 873   install="${INSTALL-ginstall}"
 874   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 875   if test -f /usr/include/sys/soundcard.h ; then
 876     audio_drv_list="oss try-sdl"
 877   fi
 878   audio_possible_drivers="oss sdl"
 879 # needed for CMSG_ macros in sys/socket.h
 880   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 881 # needed for TIOCWIN* defines in termios.h
 882   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 883   QEMU_CFLAGS="-std=gnu99 $QEMU_CFLAGS"
 884   solarisnetlibs="-lsocket -lnsl -lresolv"
 885   LIBS="$solarisnetlibs $LIBS"
 886   libs_qga="$solarisnetlibs $libs_qga"
 887 ;;
 888 Haiku)
 889   haiku="yes"
 890   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS $QEMU_CFLAGS"
 891   LIBS="-lposix_error_mapper -lnetwork $LIBS"
 892 ;;
 893 Linux)
 894   audio_drv_list="try-pa oss"
 895   audio_possible_drivers="oss alsa sdl pa"
 896   linux="yes"
 897   linux_user="yes"
 898   kvm="yes"
 899   QEMU_INCLUDES="-I\$(SRC_PATH)/linux-headers -I$PWD/linux-headers $QEMU_INCLUDES"
 900   supported_os="yes"
 901   libudev="yes"
 902 ;;
 903 esac
 904
 905 if [ "$bsd" = "yes" ] ; then
 906   if [ "$darwin" != "yes" ] ; then
 907     bsd_user="yes"
 908   fi
 909 fi
 910
 911 : ${make=${MAKE-make}}
 912 : ${install=${INSTALL-install}}
 913 # We prefer python 3.x. A bare 'python' is traditionally
 914 # python 2.x, but some distros have it as python 3.x, so
 915 # we check that before python2
 916 python=
 917 for binary in "${PYTHON-python3}" python python2
 918 do
 919     if has "$binary"
 920     then
 921         python="$binary"
 922         break
 923     fi
 924 done
 925 : ${smbd=${SMBD-/usr/sbin/smbd}}
 926
 927 # Default objcc to clang if available, otherwise use CC
 928 if has clang; then
 929   objcc=clang
 930 else
 931   objcc="$cc"
 932 fi
 933
 934 if test "$mingw32" = "yes" ; then
 935   EXESUF=".exe"
 936   DSOSUF=".dll"
 937   # MinGW needs -mthreads for TLS and macro _MT.
 938   QEMU_CFLAGS="-mthreads $QEMU_CFLAGS"
 939   LIBS="-lwinmm -lws2_32 -liphlpapi $LIBS"
 940   write_c_skeleton;
 941   if compile_prog "" "-liberty" ; then
 942     LIBS="-liberty $LIBS"
 943   fi
 944   prefix="c:/Program Files/QEMU"
 945   mandir="\${prefix}"
 946   datadir="\${prefix}"
 947   qemu_docdir="\${prefix}"
 948   bindir="\${prefix}"
 949   sysconfdir="\${prefix}"
 950   local_statedir=
 951   confsuffix=""
 952   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 953 fi
 954
 955 werror=""
 956
 957 for opt do
 958   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 959   case "$opt" in
 960   --help|-h) show_help=yes
 961   ;;
 962   --version|-V) exec cat $source_path/VERSION
 963   ;;
 964   --prefix=*) prefix="$optarg"
 965   ;;
 966   --interp-prefix=*) interp_prefix="$optarg"
 967   ;;
 968   --cross-prefix=*)
 969   ;;
 970   --cc=*)
 971   ;;
 972   --host-cc=*) host_cc="$optarg"
 973   ;;
 974   --cxx=*)
 975   ;;
 976   --iasl=*) iasl="$optarg"
 977   ;;
 978   --objcc=*) objcc="$optarg"
 979   ;;
 980   --make=*) make="$optarg"
 981   ;;
 982   --install=*) install="$optarg"
 983   ;;
 984   --python=*) python="$optarg"
 985   ;;
 986   --gcov=*) gcov_tool="$optarg"
 987   ;;
 988   --smbd=*) smbd="$optarg"
 989   ;;
 990   --extra-cflags=*)
 991   ;;
 992   --extra-cxxflags=*)
 993   ;;
 994   --extra-ldflags=*)
 995   ;;
 996   --enable-debug-info)
 997   ;;
 998   --disable-debug-info)
 999   ;;
1000   --cross-cc-*)
1001   ;;
1002   --enable-modules)
1003       modules="yes"
1004   ;;
1005   --disable-modules)
1006       modules="no"
1007   ;;
1008   --cpu=*)
1009   ;;
1010   --target-list=*) target_list="$optarg"
1011                    if test "$target_list_exclude"; then
1012                        error_exit "Can't mix --target-list with --target-list-exclude"
1013                    fi
1014   ;;
1015   --target-list-exclude=*) target_list_exclude="$optarg"
1016                    if test "$target_list"; then
1017                        error_exit "Can't mix --target-list-exclude with --target-list"
1018                    fi
1019   ;;
1020   --enable-trace-backends=*) trace_backends="$optarg"
1021   ;;
1022   # XXX: backwards compatibility
1023   --enable-trace-backend=*) trace_backends="$optarg"
1024   ;;
1025   --with-trace-file=*) trace_file="$optarg"
1026   ;;
1027   --with-default-devices) default_devices="yes"
1028   ;;
1029   --without-default-devices) default_devices="no"
1030   ;;
1031   --enable-gprof) gprof="yes"
1032   ;;
1033   --enable-gcov) gcov="yes"
1034   ;;
1035   --static)
1036     static="yes"
1037     LDFLAGS="-static $LDFLAGS"
1038     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
1039   ;;
1040   --mandir=*) mandir="$optarg"
1041   ;;
1042   --bindir=*) bindir="$optarg"
1043   ;;
1044   --libdir=*) libdir="$optarg"
1045   ;;
1046   --libexecdir=*) libexecdir="$optarg"
1047   ;;
1048   --includedir=*) includedir="$optarg"
1049   ;;
1050   --datadir=*) datadir="$optarg"
1051   ;;
1052   --with-confsuffix=*) confsuffix="$optarg"
1053   ;;
1054   --docdir=*) qemu_docdir="$optarg"
1055   ;;
1056   --sysconfdir=*) sysconfdir="$optarg"
1057   ;;
1058   --localstatedir=*) local_statedir="$optarg"
1059   ;;
1060   --firmwarepath=*) firmwarepath="$optarg"
1061   ;;
1062   --host=*|--build=*|\
1063   --disable-dependency-tracking|\
1064   --sbindir=*|--sharedstatedir=*|\
1065   --oldincludedir=*|--datarootdir=*|--infodir=*|--localedir=*|\
1066   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
1067     # These switches are silently ignored, for compatibility with
1068     # autoconf-generated configure scripts. This allows QEMU's
1069     # configure to be used by RPM and similar macros that set
1070     # lots of directory switches by default.
1071   ;;
1072   --disable-sdl) sdl="no"
1073   ;;
1074   --enable-sdl) sdl="yes"
1075   ;;
1076   --disable-sdl-image) sdl_image="no"
1077   ;;
1078   --enable-sdl-image) sdl_image="yes"
1079   ;;
1080   --disable-qom-cast-debug) qom_cast_debug="no"
1081   ;;
1082   --enable-qom-cast-debug) qom_cast_debug="yes"
1083   ;;
1084   --disable-virtfs) virtfs="no"
1085   ;;
1086   --enable-virtfs) virtfs="yes"
1087   ;;
1088   --disable-mpath) mpath="no"
1089   ;;
1090   --enable-mpath) mpath="yes"
1091   ;;
1092   --disable-vnc) vnc="no"
1093   ;;
1094   --enable-vnc) vnc="yes"
1095   ;;
1096   --oss-lib=*) oss_lib="$optarg"
1097   ;;
1098   --audio-drv-list=*) audio_drv_list="$optarg"
1099   ;;
1100   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1101   ;;
1102   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1103   ;;
1104   --enable-debug-tcg) debug_tcg="yes"
1105   ;;
1106   --disable-debug-tcg) debug_tcg="no"
1107   ;;
1108   --enable-debug)
1109       # Enable debugging options that aren't excessively noisy
1110       debug_tcg="yes"
1111       debug_mutex="yes"
1112       debug="yes"
1113       strip_opt="no"
1114       fortify_source="no"
1115   ;;
1116   --enable-sanitizers) sanitizers="yes"
1117   ;;
1118   --disable-sanitizers) sanitizers="no"
1119   ;;
1120   --enable-sparse) sparse="yes"
1121   ;;
1122   --disable-sparse) sparse="no"
1123   ;;
1124   --disable-strip) strip_opt="no"
1125   ;;
1126   --disable-vnc-sasl) vnc_sasl="no"
1127   ;;
1128   --enable-vnc-sasl) vnc_sasl="yes"
1129   ;;
1130   --disable-vnc-jpeg) vnc_jpeg="no"
1131   ;;
1132   --enable-vnc-jpeg) vnc_jpeg="yes"
1133   ;;
1134   --disable-vnc-png) vnc_png="no"
1135   ;;
1136   --enable-vnc-png) vnc_png="yes"
1137   ;;
1138   --disable-slirp) slirp="no"
1139   ;;
1140   --enable-slirp=git) slirp="git"
1141   ;;
1142   --enable-slirp=system) slirp="system"
1143   ;;
1144   --disable-vde) vde="no"
1145   ;;
1146   --enable-vde) vde="yes"
1147   ;;
1148   --disable-netmap) netmap="no"
1149   ;;
1150   --enable-netmap) netmap="yes"
1151   ;;
1152   --disable-xen) xen="no"
1153   ;;
1154   --enable-xen) xen="yes"
1155   ;;
1156   --disable-xen-pci-passthrough) xen_pci_passthrough="no"
1157   ;;
1158   --enable-xen-pci-passthrough) xen_pci_passthrough="yes"
1159   ;;
1160   --disable-brlapi) brlapi="no"
1161   ;;
1162   --enable-brlapi) brlapi="yes"
1163   ;;
1164   --disable-bluez) bluez="no"
1165   ;;
1166   --enable-bluez) bluez="yes"
1167   ;;
1168   --disable-kvm) kvm="no"
1169   ;;
1170   --enable-kvm) kvm="yes"
1171   ;;
1172   --disable-hax) hax="no"
1173   ;;
1174   --enable-hax) hax="yes"
1175   ;;
1176   --disable-hvf) hvf="no"
1177   ;;
1178   --enable-hvf) hvf="yes"
1179   ;;
1180   --disable-whpx) whpx="no"
1181   ;;
1182   --enable-whpx) whpx="yes"
1183   ;;
1184   --disable-tcg-interpreter) tcg_interpreter="no"
1185   ;;
1186   --enable-tcg-interpreter) tcg_interpreter="yes"
1187   ;;
1188   --disable-cap-ng)  cap_ng="no"
1189   ;;
1190   --enable-cap-ng) cap_ng="yes"
1191   ;;
1192   --disable-tcg) tcg="no"
1193   ;;
1194   --enable-tcg) tcg="yes"
1195   ;;
1196   --disable-malloc-trim) malloc_trim="no"
1197   ;;
1198   --enable-malloc-trim) malloc_trim="yes"
1199   ;;
1200   --disable-spice) spice="no"
1201   ;;
1202   --enable-spice) spice="yes"
1203   ;;
1204   --disable-libiscsi) libiscsi="no"
1205   ;;
1206   --enable-libiscsi) libiscsi="yes"
1207   ;;
1208   --disable-libnfs) libnfs="no"
1209   ;;
1210   --enable-libnfs) libnfs="yes"
1211   ;;
1212   --enable-profiler) profiler="yes"
1213   ;;
1214   --disable-cocoa) cocoa="no"
1215   ;;
1216   --enable-cocoa)
1217       cocoa="yes" ;
1218       audio_drv_list="coreaudio $(echo $audio_drv_list | sed s,coreaudio,,g)"
1219   ;;
1220   --disable-system) softmmu="no"
1221   ;;
1222   --enable-system) softmmu="yes"
1223   ;;
1224   --disable-user)
1225       linux_user="no" ;
1226       bsd_user="no" ;
1227   ;;
1228   --enable-user) ;;
1229   --disable-linux-user) linux_user="no"
1230   ;;
1231   --enable-linux-user) linux_user="yes"
1232   ;;
1233   --disable-bsd-user) bsd_user="no"
1234   ;;
1235   --enable-bsd-user) bsd_user="yes"
1236   ;;
1237   --enable-pie) pie="yes"
1238   ;;
1239   --disable-pie) pie="no"
1240   ;;
1241   --enable-werror) werror="yes"
1242   ;;
1243   --disable-werror) werror="no"
1244   ;;
1245   --enable-stack-protector) stack_protector="yes"
1246   ;;
1247   --disable-stack-protector) stack_protector="no"
1248   ;;
1249   --disable-curses) curses="no"
1250   ;;
1251   --enable-curses) curses="yes"
1252   ;;
1253   --disable-iconv) iconv="no"
1254   ;;
1255   --enable-iconv) iconv="yes"
1256   ;;
1257   --disable-curl) curl="no"
1258   ;;
1259   --enable-curl) curl="yes"
1260   ;;
1261   --disable-fdt) fdt="no"
1262   ;;
1263   --enable-fdt) fdt="yes"
1264   ;;
1265   --disable-linux-aio) linux_aio="no"
1266   ;;
1267   --enable-linux-aio) linux_aio="yes"
1268   ;;
1269   --disable-attr) attr="no"
1270   ;;
1271   --enable-attr) attr="yes"
1272   ;;
1273   --disable-membarrier) membarrier="no"
1274   ;;
1275   --enable-membarrier) membarrier="yes"
1276   ;;
1277   --disable-blobs) blobs="no"
1278   ;;
1279   --with-pkgversion=*) pkgversion="$optarg"
1280   ;;
1281   --with-coroutine=*) coroutine="$optarg"
1282   ;;
1283   --disable-coroutine-pool) coroutine_pool="no"
1284   ;;
1285   --enable-coroutine-pool) coroutine_pool="yes"
1286   ;;
1287   --enable-debug-stack-usage) debug_stack_usage="yes"
1288   ;;
1289   --enable-crypto-afalg) crypto_afalg="yes"
1290   ;;
1291   --disable-crypto-afalg) crypto_afalg="no"
1292   ;;
1293   --disable-docs) docs="no"
1294   ;;
1295   --enable-docs) docs="yes"
1296   ;;
1297   --disable-vhost-net) vhost_net="no"
1298   ;;
1299   --enable-vhost-net) vhost_net="yes"
1300   ;;
1301   --disable-vhost-crypto) vhost_crypto="no"
1302   ;;
1303   --enable-vhost-crypto) vhost_crypto="yes"
1304   ;;
1305   --disable-vhost-scsi) vhost_scsi="no"
1306   ;;
1307   --enable-vhost-scsi) vhost_scsi="yes"
1308   ;;
1309   --disable-vhost-vsock) vhost_vsock="no"
1310   ;;
1311   --enable-vhost-vsock) vhost_vsock="yes"
1312   ;;
1313   --disable-opengl) opengl="no"
1314   ;;
1315   --enable-opengl) opengl="yes"
1316   ;;
1317   --disable-rbd) rbd="no"
1318   ;;
1319   --enable-rbd) rbd="yes"
1320   ;;
1321   --disable-xfsctl) xfs="no"
1322   ;;
1323   --enable-xfsctl) xfs="yes"
1324   ;;
1325   --disable-smartcard) smartcard="no"
1326   ;;
1327   --enable-smartcard) smartcard="yes"
1328   ;;
1329   --disable-libusb) libusb="no"
1330   ;;
1331   --enable-libusb) libusb="yes"
1332   ;;
1333   --disable-usb-redir) usb_redir="no"
1334   ;;
1335   --enable-usb-redir) usb_redir="yes"
1336   ;;
1337   --disable-zlib-test) zlib="no"
1338   ;;
1339   --disable-lzo) lzo="no"
1340   ;;
1341   --enable-lzo) lzo="yes"
1342   ;;
1343   --disable-snappy) snappy="no"
1344   ;;
1345   --enable-snappy) snappy="yes"
1346   ;;
1347   --disable-bzip2) bzip2="no"
1348   ;;
1349   --enable-bzip2) bzip2="yes"
1350   ;;
1351   --enable-lzfse) lzfse="yes"
1352   ;;
1353   --disable-lzfse) lzfse="no"
1354   ;;
1355   --enable-guest-agent) guest_agent="yes"
1356   ;;
1357   --disable-guest-agent) guest_agent="no"
1358   ;;
1359   --enable-guest-agent-msi) guest_agent_msi="yes"
1360   ;;
1361   --disable-guest-agent-msi) guest_agent_msi="no"
1362   ;;
1363   --with-vss-sdk) vss_win32_sdk=""
1364   ;;
1365   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1366   ;;
1367   --without-vss-sdk) vss_win32_sdk="no"
1368   ;;
1369   --with-win-sdk) win_sdk=""
1370   ;;
1371   --with-win-sdk=*) win_sdk="$optarg"
1372   ;;
1373   --without-win-sdk) win_sdk="no"
1374   ;;
1375   --enable-tools) want_tools="yes"
1376   ;;
1377   --disable-tools) want_tools="no"
1378   ;;
1379   --enable-seccomp) seccomp="yes"
1380   ;;
1381   --disable-seccomp) seccomp="no"
1382   ;;
1383   --disable-glusterfs) glusterfs="no"
1384   ;;
1385   --disable-avx2) avx2_opt="no"
1386   ;;
1387   --enable-avx2) avx2_opt="yes"
1388   ;;
1389   --enable-glusterfs) glusterfs="yes"
1390   ;;
1391   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1392       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1393   ;;
1394   --enable-vhdx|--disable-vhdx)
1395       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1396   ;;
1397   --enable-uuid|--disable-uuid)
1398       echo "$0: $opt is obsolete, UUID support is always built" >&2
1399   ;;
1400   --disable-gtk) gtk="no"
1401   ;;
1402   --enable-gtk) gtk="yes"
1403   ;;
1404   --tls-priority=*) tls_priority="$optarg"
1405   ;;
1406   --disable-gnutls) gnutls="no"
1407   ;;
1408   --enable-gnutls) gnutls="yes"
1409   ;;
1410   --disable-nettle) nettle="no"
1411   ;;
1412   --enable-nettle) nettle="yes"
1413   ;;
1414   --disable-gcrypt) gcrypt="no"
1415   ;;
1416   --enable-gcrypt) gcrypt="yes"
1417   ;;
1418   --disable-auth-pam) auth_pam="no"
1419   ;;
1420   --enable-auth-pam) auth_pam="yes"
1421   ;;
1422   --enable-rdma) rdma="yes"
1423   ;;
1424   --disable-rdma) rdma="no"
1425   ;;
1426   --enable-pvrdma) pvrdma="yes"
1427   ;;
1428   --disable-pvrdma) pvrdma="no"
1429   ;;
1430   --disable-vte) vte="no"
1431   ;;
1432   --enable-vte) vte="yes"
1433   ;;
1434   --disable-virglrenderer) virglrenderer="no"
1435   ;;
1436   --enable-virglrenderer) virglrenderer="yes"
1437   ;;
1438   --disable-tpm) tpm="no"
1439   ;;
1440   --enable-tpm) tpm="yes"
1441   ;;
1442   --disable-libssh2) libssh2="no"
1443   ;;
1444   --enable-libssh2) libssh2="yes"
1445   ;;
1446   --disable-live-block-migration) live_block_migration="no"
1447   ;;
1448   --enable-live-block-migration) live_block_migration="yes"
1449   ;;
1450   --disable-numa) numa="no"
1451   ;;
1452   --enable-numa) numa="yes"
1453   ;;
1454   --disable-libxml2) libxml2="no"
1455   ;;
1456   --enable-libxml2) libxml2="yes"
1457   ;;
1458   --disable-tcmalloc) tcmalloc="no"
1459   ;;
1460   --enable-tcmalloc) tcmalloc="yes"
1461   ;;
1462   --disable-jemalloc) jemalloc="no"
1463   ;;
1464   --enable-jemalloc) jemalloc="yes"
1465   ;;
1466   --disable-replication) replication="no"
1467   ;;
1468   --enable-replication) replication="yes"
1469   ;;
1470   --disable-vxhs) vxhs="no"
1471   ;;
1472   --enable-vxhs) vxhs="yes"
1473   ;;
1474   --disable-bochs) bochs="no"
1475   ;;
1476   --enable-bochs) bochs="yes"
1477   ;;
1478   --disable-cloop) cloop="no"
1479   ;;
1480   --enable-cloop) cloop="yes"
1481   ;;
1482   --disable-dmg) dmg="no"
1483   ;;
1484   --enable-dmg) dmg="yes"
1485   ;;
1486   --disable-qcow1) qcow1="no"
1487   ;;
1488   --enable-qcow1) qcow1="yes"
1489   ;;
1490   --disable-vdi) vdi="no"
1491   ;;
1492   --enable-vdi) vdi="yes"
1493   ;;
1494   --disable-vvfat) vvfat="no"
1495   ;;
1496   --enable-vvfat) vvfat="yes"
1497   ;;
1498   --disable-qed) qed="no"
1499   ;;
1500   --enable-qed) qed="yes"
1501   ;;
1502   --disable-parallels) parallels="no"
1503   ;;
1504   --enable-parallels) parallels="yes"
1505   ;;
1506   --disable-sheepdog) sheepdog="no"
1507   ;;
1508   --enable-sheepdog) sheepdog="yes"
1509   ;;
1510   --disable-vhost-user) vhost_user="no"
1511   ;;
1512   --enable-vhost-user) vhost_user="yes"
1513   ;;
1514   --disable-vhost-kernel) vhost_kernel="no"
1515   ;;
1516   --enable-vhost-kernel) vhost_kernel="yes"
1517   ;;
1518   --disable-capstone) capstone="no"
1519   ;;
1520   --enable-capstone) capstone="yes"
1521   ;;
1522   --enable-capstone=git) capstone="git"
1523   ;;
1524   --enable-capstone=system) capstone="system"
1525   ;;
1526   --with-git=*) git="$optarg"
1527   ;;
1528   --enable-git-update) git_update=yes
1529   ;;
1530   --disable-git-update) git_update=no
1531   ;;
1532   --enable-debug-mutex) debug_mutex=yes
1533   ;;
1534   --disable-debug-mutex) debug_mutex=no
1535   ;;
1536   --enable-libpmem) libpmem=yes
1537   ;;
1538   --disable-libpmem) libpmem=no
1539   ;;
1540   *)
1541       echo "ERROR: unknown option $opt"
1542       echo "Try '$0 --help' for more information"
1543       exit 1
1544   ;;
1545   esac
1546 done
1547
1548 case "$cpu" in
1549     ppc)
1550            CPU_CFLAGS="-m32"
1551            LDFLAGS="-m32 $LDFLAGS"
1552            cross_cc_ppc=$cc
1553            cross_cc_cflags_ppc="$CPU_CFLAGS"
1554            ;;
1555     ppc64)
1556            CPU_CFLAGS="-m64"
1557            LDFLAGS="-m64 $LDFLAGS"
1558            cross_cc_ppc64=$cc
1559            cross_cc_cflags_ppc64="$CPU_CFLAGS"
1560            ;;
1561     sparc)
1562            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1563            LDFLAGS="-m32 -mv8plus $LDFLAGS"
1564            cross_cc_sparc=$cc
1565            cross_cc_cflags_sparc="$CPU_CFLAGS"
1566            ;;
1567     sparc64)
1568            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1569            LDFLAGS="-m64 $LDFLAGS"
1570            cross_cc_sparc64=$cc
1571            cross_cc_cflags_sparc64="$CPU_CFLAGS"
1572            ;;
1573     s390)
1574            CPU_CFLAGS="-m31"
1575            LDFLAGS="-m31 $LDFLAGS"
1576            cross_cc_s390=$cc
1577            cross_cc_cflags_s390="$CPU_CFLAGS"
1578            ;;
1579     s390x)
1580            CPU_CFLAGS="-m64"
1581            LDFLAGS="-m64 $LDFLAGS"
1582            cross_cc_s390x=$cc
1583            cross_cc_cflags_s390x="$CPU_CFLAGS"
1584            ;;
1585     i386)
1586            CPU_CFLAGS="-m32"
1587            LDFLAGS="-m32 $LDFLAGS"
1588            cross_cc_i386=$cc
1589            cross_cc_cflags_i386="$CPU_CFLAGS"
1590            ;;
1591     x86_64)
1592            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1593            # If we truly care, we should simply detect this case at
1594            # runtime and generate the fallback to serial emulation.
1595            CPU_CFLAGS="-m64 -mcx16"
1596            LDFLAGS="-m64 $LDFLAGS"
1597            cross_cc_x86_64=$cc
1598            cross_cc_cflags_x86_64="$CPU_CFLAGS"
1599            ;;
1600     x32)
1601            CPU_CFLAGS="-mx32"
1602            LDFLAGS="-mx32 $LDFLAGS"
1603            cross_cc_i386=$cc
1604            cross_cc_cflags_i386="$CPU_CFLAGS"
1605            ;;
1606     # No special flags required for other host CPUs
1607 esac
1608
1609 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1610
1611 # For user-mode emulation the host arch has to be one we explicitly
1612 # support, even if we're using TCI.
1613 if [ "$ARCH" = "unknown" ]; then
1614   bsd_user="no"
1615   linux_user="no"
1616 fi
1617
1618 default_target_list=""
1619
1620 mak_wilds=""
1621
1622 if [ "$softmmu" = "yes" ]; then
1623     mak_wilds="${mak_wilds} $source_path/default-configs/*-softmmu.mak"
1624 fi
1625 if [ "$linux_user" = "yes" ]; then
1626     mak_wilds="${mak_wilds} $source_path/default-configs/*-linux-user.mak"
1627 fi
1628 if [ "$bsd_user" = "yes" ]; then
1629     mak_wilds="${mak_wilds} $source_path/default-configs/*-bsd-user.mak"
1630 fi
1631
1632 if test -z "$target_list_exclude"; then
1633     for config in $mak_wilds; do
1634         default_target_list="${default_target_list} $(basename "$config" .mak)"
1635     done
1636 else
1637     exclude_list=$(echo "$target_list_exclude" | sed -e 's/,/ /g')
1638     for config in $mak_wilds; do
1639         target="$(basename "$config" .mak)"
1640         exclude="no"
1641         for excl in $exclude_list; do
1642             if test "$excl" = "$target"; then
1643                 exclude="yes"
1644                 break;
1645             fi
1646         done
1647         if test "$exclude" = "no"; then
1648             default_target_list="${default_target_list} $target"
1649         fi
1650     done
1651 fi
1652
1653 # Enumerate public trace backends for --help output
1654 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1655
1656 if test x"$show_help" = x"yes" ; then
1657 cat << EOF
1658
1659 Usage: configure [options]
1660 Options: [defaults in brackets after descriptions]
1661
1662 Standard options:
1663   --help                   print this message
1664   --prefix=PREFIX          install in PREFIX [$prefix]
1665   --interp-prefix=PREFIX   where to find shared libraries, etc.
1666                            use %M for cpu name [$interp_prefix]
1667   --target-list=LIST       set target list (default: build everything)
1668 $(echo Available targets: $default_target_list | \
1669   fold -s -w 53 | sed -e 's/^/                           /')
1670   --target-list-exclude=LIST exclude a set of targets from the default target-list
1671
1672 Advanced options (experts only):
1673   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
1674   --cc=CC                  use C compiler CC [$cc]
1675   --iasl=IASL              use ACPI compiler IASL [$iasl]
1676   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1677                            build time
1678   --cxx=CXX                use C++ compiler CXX [$cxx]
1679   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1680   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1681   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1682   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1683   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1684   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1685   --make=MAKE              use specified make [$make]
1686   --install=INSTALL        use specified install [$install]
1687   --python=PYTHON          use specified python [$python]
1688   --smbd=SMBD              use specified smbd [$smbd]
1689   --with-git=GIT           use specified git [$git]
1690   --static                 enable static build [$static]
1691   --mandir=PATH            install man pages in PATH
1692   --datadir=PATH           install firmware in PATH$confsuffix
1693   --docdir=PATH            install documentation in PATH$confsuffix
1694   --bindir=PATH            install binaries in PATH
1695   --libdir=PATH            install libraries in PATH
1696   --libexecdir=PATH        install helper binaries in PATH
1697   --sysconfdir=PATH        install config in PATH$confsuffix
1698   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1699   --firmwarepath=PATH      search PATH for firmware files
1700   --with-confsuffix=SUFFIX suffix for QEMU data inside datadir/libdir/sysconfdir [$confsuffix]
1701   --with-pkgversion=VERS   use specified string as sub-version of the package
1702   --enable-debug           enable common debug build options
1703   --enable-sanitizers      enable default sanitizers
1704   --disable-strip          disable stripping binaries
1705   --disable-werror         disable compilation abort on warning
1706   --disable-stack-protector disable compiler-provided stack protection
1707   --audio-drv-list=LIST    set audio drivers list:
1708                            Available drivers: $audio_possible_drivers
1709   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1710   --block-drv-rw-whitelist=L
1711                            set block driver read-write whitelist
1712                            (affects only QEMU, not qemu-img)
1713   --block-drv-ro-whitelist=L
1714                            set block driver read-only whitelist
1715                            (affects only QEMU, not qemu-img)
1716   --enable-trace-backends=B Set trace backend
1717                            Available backends: $trace_backend_list
1718   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1719                            Default:trace-<pid>
1720   --disable-slirp          disable SLIRP userspace network connectivity
1721   --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)
1722   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1723   --oss-lib                path to OSS library
1724   --cpu=CPU                Build for host CPU [$cpu]
1725   --with-coroutine=BACKEND coroutine backend. Supported options:
1726                            ucontext, sigaltstack, windows
1727   --enable-gcov            enable test coverage analysis with gcov
1728   --gcov=GCOV              use specified gcov [$gcov_tool]
1729   --disable-blobs          disable installing provided firmware blobs
1730   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1731   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1732   --tls-priority           default TLS protocol/cipher priority string
1733   --enable-gprof           QEMU profiling with gprof
1734   --enable-profiler        profiler support
1735   --enable-debug-stack-usage
1736                            track the maximum stack usage of stacks created by qemu_alloc_stack
1737
1738 Optional features, enabled with --enable-FEATURE and
1739 disabled with --disable-FEATURE, default is enabled if available:
1740
1741   system          all system emulation targets
1742   user            supported user emulation targets
1743   linux-user      all linux usermode emulation targets
1744   bsd-user        all BSD usermode emulation targets
1745   docs            build documentation
1746   guest-agent     build the QEMU Guest Agent
1747   guest-agent-msi build guest agent Windows MSI installation package
1748   pie             Position Independent Executables
1749   modules         modules support
1750   debug-tcg       TCG debugging (default is disabled)
1751   debug-info      debugging information
1752   sparse          sparse checker
1753
1754   gnutls          GNUTLS cryptography support
1755   nettle          nettle cryptography support
1756   gcrypt          libgcrypt cryptography support
1757   auth-pam        PAM access control
1758   sdl             SDL UI
1759   sdl-image       SDL Image support for icons
1760   gtk             gtk UI
1761   vte             vte support for the gtk UI
1762   curses          curses UI
1763   iconv           font glyph conversion support
1764   vnc             VNC UI support
1765   vnc-sasl        SASL encryption for VNC server
1766   vnc-jpeg        JPEG lossy compression for VNC server
1767   vnc-png         PNG compression for VNC server
1768   cocoa           Cocoa UI (Mac OS X only)
1769   virtfs          VirtFS
1770   mpath           Multipath persistent reservation passthrough
1771   xen             xen backend driver support
1772   xen-pci-passthrough    PCI passthrough support for Xen
1773   brlapi          BrlAPI (Braile)
1774   curl            curl connectivity
1775   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1776   fdt             fdt device tree
1777   bluez           bluez stack connectivity
1778   kvm             KVM acceleration support
1779   hax             HAX acceleration support
1780   hvf             Hypervisor.framework acceleration support
1781   whpx            Windows Hypervisor Platform acceleration support
1782   rdma            Enable RDMA-based migration
1783   pvrdma          Enable PVRDMA support
1784   vde             support for vde network
1785   netmap          support for netmap network
1786   linux-aio       Linux AIO support
1787   cap-ng          libcap-ng support
1788   attr            attr and xattr support
1789   vhost-net       vhost-net kernel acceleration support
1790   vhost-vsock     virtio sockets device support
1791   vhost-scsi      vhost-scsi kernel target support
1792   vhost-crypto    vhost-user-crypto backend support
1793   vhost-kernel    vhost kernel backend support
1794   vhost-user      vhost-user backend support
1795   spice           spice
1796   rbd             rados block device (rbd)
1797   libiscsi        iscsi support
1798   libnfs          nfs support
1799   smartcard       smartcard support (libcacard)
1800   libusb          libusb (for usb passthrough)
1801   live-block-migration   Block migration in the main migration stream
1802   usb-redir       usb network redirection support
1803   lzo             support of lzo compression library
1804   snappy          support of snappy compression library
1805   bzip2           support of bzip2 compression library
1806                   (for reading bzip2-compressed dmg images)
1807   lzfse           support of lzfse compression library
1808                   (for reading lzfse-compressed dmg images)
1809   seccomp         seccomp support
1810   coroutine-pool  coroutine freelist (better performance)
1811   glusterfs       GlusterFS backend
1812   tpm             TPM support
1813   libssh2         ssh block device support
1814   numa            libnuma support
1815   libxml2         for Parallels image format
1816   tcmalloc        tcmalloc support
1817   jemalloc        jemalloc support
1818   avx2            AVX2 optimization support
1819   replication     replication support
1820   opengl          opengl support
1821   virglrenderer   virgl rendering support
1822   xfsctl          xfsctl support
1823   qom-cast-debug  cast debugging support
1824   tools           build qemu-io, qemu-nbd and qemu-img tools
1825   vxhs            Veritas HyperScale vDisk backend support
1826   bochs           bochs image format support
1827   cloop           cloop image format support
1828   dmg             dmg image format support
1829   qcow1           qcow v1 image format support
1830   vdi             vdi image format support
1831   vvfat           vvfat image format support
1832   qed             qed image format support
1833   parallels       parallels image format support
1834   sheepdog        sheepdog block driver support
1835   crypto-afalg    Linux AF_ALG crypto backend driver
1836   capstone        capstone disassembler support
1837   debug-mutex     mutex debugging support
1838   libpmem         libpmem support
1839
1840 NOTE: The object files are built at the place where configure is launched
1841 EOF
1842 exit 0
1843 fi
1844
1845 # Remove old dependency files to make sure that they get properly regenerated
1846 rm -f */config-devices.mak.d
1847
1848 if test -z "$python"
1849 then
1850     error_exit "Python not found. Use --python=/path/to/python"
1851 fi
1852
1853 # Note that if the Python conditional here evaluates True we will exit
1854 # with status 1 which is a shell 'false' value.
1855 if ! $python -c 'import sys; sys.exit(sys.version_info < (2,7))'; then
1856   error_exit "Cannot use '$python', Python 2 >= 2.7 or Python 3 is required." \
1857       "Use --python=/path/to/python to specify a supported Python."
1858 fi
1859
1860 # Preserve python version since some functionality is dependent on it
1861 python_version=$($python -V 2>&1 | sed -e 's/Python\ //')
1862
1863 # Suppress writing compiled files
1864 python="$python -B"
1865
1866 # Check that the C compiler works. Doing this here before testing
1867 # the host CPU ensures that we had a valid CC to autodetect the
1868 # $cpu var (and we should bail right here if that's not the case).
1869 # It also allows the help message to be printed without a CC.
1870 write_c_skeleton;
1871 if compile_object ; then
1872   : C compiler works ok
1873 else
1874     error_exit "\"$cc\" either does not exist or does not work"
1875 fi
1876 if ! compile_prog ; then
1877     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1878 fi
1879
1880 # Now we have handled --enable-tcg-interpreter and know we're not just
1881 # printing the help message, bail out if the host CPU isn't supported.
1882 if test "$ARCH" = "unknown"; then
1883     if test "$tcg_interpreter" = "yes" ; then
1884         echo "Unsupported CPU = $cpu, will use TCG with TCI (experimental)"
1885     else
1886         error_exit "Unsupported CPU = $cpu, try --enable-tcg-interpreter"
1887     fi
1888 fi
1889
1890 # Consult white-list to determine whether to enable werror
1891 # by default.  Only enable by default for git builds
1892 if test -z "$werror" ; then
1893     if test -e "$source_path/.git" && \
1894         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1895         werror="yes"
1896     else
1897         werror="no"
1898     fi
1899 fi
1900
1901 if test "$bogus_os" = "yes"; then
1902     # Now that we know that we're not printing the help and that
1903     # the compiler works (so the results of the check_defines we used
1904     # to identify the OS are reliable), if we didn't recognize the
1905     # host OS we should stop now.
1906     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1907 fi
1908
1909 # Check whether the compiler matches our minimum requirements:
1910 cat > $TMPC << EOF
1911 #if defined(__clang_major__) && defined(__clang_minor__)
1912 # ifdef __apple_build_version__
1913 #  if __clang_major__ < 5 || (__clang_major__ == 5 && __clang_minor__ < 1)
1914 #   error You need at least XCode Clang v5.1 to compile QEMU
1915 #  endif
1916 # else
1917 #  if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 4)
1918 #   error You need at least Clang v3.4 to compile QEMU
1919 #  endif
1920 # endif
1921 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1922 # if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
1923 #  error You need at least GCC v4.8 to compile QEMU
1924 # endif
1925 #else
1926 # error You either need GCC or Clang to compiler QEMU
1927 #endif
1928 int main (void) { return 0; }
1929 EOF
1930 if ! compile_prog "" "" ; then
1931     error_exit "You need at least GCC v4.8 or Clang v3.4 (or XCode Clang v5.1)"
1932 fi
1933
1934 gcc_flags="-Wold-style-declaration -Wold-style-definition -Wtype-limits"
1935 gcc_flags="-Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers $gcc_flags"
1936 gcc_flags="-Wno-missing-include-dirs -Wempty-body -Wnested-externs $gcc_flags"
1937 gcc_flags="-Wendif-labels -Wno-shift-negative-value $gcc_flags"
1938 gcc_flags="-Wno-initializer-overrides -Wexpansion-to-defined $gcc_flags"
1939 gcc_flags="-Wno-string-plus-int -Wno-typedef-redefinition $gcc_flags"
1940 # Note that we do not add -Werror to gcc_flags here, because that would
1941 # enable it for all configure tests. If a configure test failed due
1942 # to -Werror this would just silently disable some features,
1943 # so it's too error prone.
1944
1945 cc_has_warning_flag() {
1946     write_c_skeleton;
1947
1948     # Use the positive sense of the flag when testing for -Wno-wombat
1949     # support (gcc will happily accept the -Wno- form of unknown
1950     # warning options).
1951     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1952     compile_prog "-Werror $optflag" ""
1953 }
1954
1955 for flag in $gcc_flags; do
1956     if cc_has_warning_flag $flag ; then
1957         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1958     fi
1959 done
1960
1961 if test "$stack_protector" != "no"; then
1962   cat > $TMPC << EOF
1963 int main(int argc, char *argv[])
1964 {
1965     char arr[64], *p = arr, *c = argv[0];
1966     while (*c) {
1967         *p++ = *c++;
1968     }
1969     return 0;
1970 }
1971 EOF
1972   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1973   sp_on=0
1974   for flag in $gcc_flags; do
1975     # We need to check both a compile and a link, since some compiler
1976     # setups fail only on a .c->.o compile and some only at link time
1977     if do_cc $QEMU_CFLAGS -Werror $flag -c -o $TMPO $TMPC &&
1978        compile_prog "-Werror $flag" ""; then
1979       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1980       sp_on=1
1981       break
1982     fi
1983   done
1984   if test "$stack_protector" = yes; then
1985     if test $sp_on = 0; then
1986       error_exit "Stack protector not supported"
1987     fi
1988   fi
1989 fi
1990
1991 # Disable -Wmissing-braces on older compilers that warn even for
1992 # the "universal" C zero initializer {0}.
1993 cat > $TMPC << EOF
1994 struct {
1995   int a[2];
1996 } x = {0};
1997 EOF
1998 if compile_object "-Werror" "" ; then
1999   :
2000 else
2001   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2002 fi
2003
2004 # Static linking is not possible with modules or PIE
2005 if test "$static" = "yes" ; then
2006   if test "$modules" = "yes" ; then
2007     error_exit "static and modules are mutually incompatible"
2008   fi
2009   if test "$pie" = "yes" ; then
2010     error_exit "static and pie are mutually incompatible"
2011   else
2012     pie="no"
2013   fi
2014 fi
2015
2016 # Unconditional check for compiler __thread support
2017   cat > $TMPC << EOF
2018 static __thread int tls_var;
2019 int main(void) { return tls_var; }
2020 EOF
2021
2022 if ! compile_prog "-Werror" "" ; then
2023     error_exit "Your compiler does not support the __thread specifier for " \
2024         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2025 fi
2026
2027 if test "$pie" = ""; then
2028   case "$cpu-$targetos" in
2029     i386-Linux|x86_64-Linux|x32-Linux|i386-OpenBSD|x86_64-OpenBSD)
2030       ;;
2031     *)
2032       pie="no"
2033       ;;
2034   esac
2035 fi
2036
2037 if test "$pie" != "no" ; then
2038   cat > $TMPC << EOF
2039
2040 #ifdef __linux__
2041 #  define THREAD __thread
2042 #else
2043 #  define THREAD
2044 #endif
2045
2046 static THREAD int tls_var;
2047
2048 int main(void) { return tls_var; }
2049
2050 EOF
2051   if compile_prog "-fPIE -DPIE" "-pie"; then
2052     QEMU_CFLAGS="-fPIE -DPIE $QEMU_CFLAGS"
2053     LDFLAGS="-pie $LDFLAGS"
2054     pie="yes"
2055     if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2056       LDFLAGS="-Wl,-z,relro -Wl,-z,now $LDFLAGS"
2057     fi
2058   else
2059     if test "$pie" = "yes"; then
2060       error_exit "PIE not available due to missing toolchain support"
2061     else
2062       echo "Disabling PIE due to missing toolchain support"
2063       pie="no"
2064     fi
2065   fi
2066
2067   if compile_prog "-Werror -fno-pie" "-nopie"; then
2068     CFLAGS_NOPIE="-fno-pie"
2069     LDFLAGS_NOPIE="-nopie"
2070   fi
2071 fi
2072
2073 ##########################################
2074 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2075 # use i686 as default anyway, but for those that don't, an explicit
2076 # specification is necessary
2077
2078 if test "$cpu" = "i386"; then
2079   cat > $TMPC << EOF
2080 static int sfaa(int *ptr)
2081 {
2082   return __sync_fetch_and_and(ptr, 0);
2083 }
2084
2085 int main(void)
2086 {
2087   int val = 42;
2088   val = __sync_val_compare_and_swap(&val, 0, 1);
2089   sfaa(&val);
2090   return val;
2091 }
2092 EOF
2093   if ! compile_prog "" "" ; then
2094     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2095   fi
2096 fi
2097
2098 #########################################
2099 # Solaris specific configure tool chain decisions
2100
2101 if test "$solaris" = "yes" ; then
2102   if has $install; then
2103     :
2104   else
2105     error_exit "Solaris install program not found. Use --install=/usr/ucb/install or" \
2106         "install fileutils from www.blastwave.org using pkg-get -i fileutils" \
2107         "to get ginstall which is used by default (which lives in /opt/csw/bin)"
2108   fi
2109   if test "$(path_of $install)" = "/usr/sbin/install" ; then
2110     error_exit "Solaris /usr/sbin/install is not an appropriate install program." \
2111         "try ginstall from the GNU fileutils available from www.blastwave.org" \
2112         "using pkg-get -i fileutils, or use --install=/usr/ucb/install"
2113   fi
2114   if has ar; then
2115     :
2116   else
2117     if test -f /usr/ccs/bin/ar ; then
2118       error_exit "No path includes ar" \
2119           "Add /usr/ccs/bin to your path and rerun configure"
2120     fi
2121     error_exit "No path includes ar"
2122   fi
2123 fi
2124
2125 if test -z "${target_list+xxx}" ; then
2126     for target in $default_target_list; do
2127         supported_target $target 2>/dev/null && \
2128             target_list="$target_list $target"
2129     done
2130     target_list="${target_list# }"
2131 else
2132     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2133     for target in $target_list; do
2134         # Check that we recognised the target name; this allows a more
2135         # friendly error message than if we let it fall through.
2136         case " $default_target_list " in
2137             *" $target "*)
2138                 ;;
2139             *)
2140                 error_exit "Unknown target name '$target'"
2141                 ;;
2142         esac
2143         supported_target $target || exit 1
2144     done
2145 fi
2146
2147 # see if system emulation was really requested
2148 case " $target_list " in
2149   *"-softmmu "*) softmmu=yes
2150   ;;
2151   *) softmmu=no
2152   ;;
2153 esac
2154
2155 feature_not_found() {
2156   feature=$1
2157   remedy=$2
2158
2159   error_exit "User requested feature $feature" \
2160       "configure was not able to find it." \
2161       "$remedy"
2162 }
2163
2164 # ---
2165 # big/little endian test
2166 cat > $TMPC << EOF
2167 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2168 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2169 extern int foo(short *, short *);
2170 int main(int argc, char *argv[]) {
2171     return foo(big_endian, little_endian);
2172 }
2173 EOF
2174
2175 if compile_object ; then
2176     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2177         bigendian="yes"
2178     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2179         bigendian="no"
2180     else
2181         echo big/little test failed
2182     fi
2183 else
2184     echo big/little test failed
2185 fi
2186
2187 ##########################################
2188 # cocoa implies not SDL or GTK
2189 # (the cocoa UI code currently assumes it is always the active UI
2190 # and doesn't interact well with other UI frontend code)
2191 if test "$cocoa" = "yes"; then
2192     if test "$sdl" = "yes"; then
2193         error_exit "Cocoa and SDL UIs cannot both be enabled at once"
2194     fi
2195     if test "$gtk" = "yes"; then
2196         error_exit "Cocoa and GTK UIs cannot both be enabled at once"
2197     fi
2198     gtk=no
2199     sdl=no
2200 fi
2201
2202 # Some versions of Mac OS X incorrectly define SIZE_MAX
2203 cat > $TMPC << EOF
2204 #include <stdint.h>
2205 #include <stdio.h>
2206 int main(int argc, char *argv[]) {
2207     return printf("%zu", SIZE_MAX);
2208 }
2209 EOF
2210 have_broken_size_max=no
2211 if ! compile_object -Werror ; then
2212     have_broken_size_max=yes
2213 fi
2214
2215 ##########################################
2216 # L2TPV3 probe
2217
2218 cat > $TMPC <<EOF
2219 #include <sys/socket.h>
2220 #include <linux/ip.h>
2221 int main(void) { return sizeof(struct mmsghdr); }
2222 EOF
2223 if compile_prog "" "" ; then
2224   l2tpv3=yes
2225 else
2226   l2tpv3=no
2227 fi
2228
2229 #########################################
2230 # vhost interdependencies and host support
2231
2232 # vhost backends
2233 test "$vhost_user" = "" && vhost_user=yes
2234 if test "$vhost_user" = "yes" && test "$mingw32" = "yes"; then
2235   error_exit "vhost-user isn't available on win32"
2236 fi
2237 test "$vhost_kernel" = "" && vhost_kernel=$linux
2238 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2239   error_exit "vhost-kernel is only available on Linux"
2240 fi
2241
2242 # vhost-kernel devices
2243 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2244 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2245   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2246 fi
2247 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2248 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2249   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2250 fi
2251
2252 # vhost-user backends
2253 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2254 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2255   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2256 fi
2257 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2258 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2259   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2260 fi
2261
2262 # OR the vhost-kernel and vhost-user values for simplicity
2263 if test "$vhost_net" = ""; then
2264   test "$vhost_net_user" = "yes" && vhost_net=yes
2265   test "$vhost_kernel" = "yes" && vhost_net=yes
2266 fi
2267
2268 ##########################################
2269 # MinGW / Mingw-w64 localtime_r/gmtime_r check
2270
2271 if test "$mingw32" = "yes"; then
2272     # Some versions of MinGW / Mingw-w64 lack localtime_r
2273     # and gmtime_r entirely.
2274     #
2275     # Some versions of Mingw-w64 define a macro for
2276     # localtime_r/gmtime_r.
2277     #
2278     # Some versions of Mingw-w64 will define functions
2279     # for localtime_r/gmtime_r, but only if you have
2280     # _POSIX_THREAD_SAFE_FUNCTIONS defined. For fun
2281     # though, unistd.h and pthread.h both define
2282     # that for you.
2283     #
2284     # So this #undef localtime_r and #include <unistd.h>
2285     # are not in fact redundant.
2286 cat > $TMPC << EOF
2287 #include <unistd.h>
2288 #include <time.h>
2289 #undef localtime_r
2290 int main(void) { localtime_r(NULL, NULL); return 0; }
2291 EOF
2292     if compile_prog "" "" ; then
2293         localtime_r="yes"
2294     else
2295         localtime_r="no"
2296     fi
2297 fi
2298
2299 ##########################################
2300 # pkg-config probe
2301
2302 if ! has "$pkg_config_exe"; then
2303   error_exit "pkg-config binary '$pkg_config_exe' not found"
2304 fi
2305
2306 ##########################################
2307 # NPTL probe
2308
2309 if test "$linux_user" = "yes"; then
2310   cat > $TMPC <<EOF
2311 #include <sched.h>
2312 #include <linux/futex.h>
2313 int main(void) {
2314 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2315 #error bork
2316 #endif
2317   return 0;
2318 }
2319 EOF
2320   if ! compile_object ; then
2321     feature_not_found "nptl" "Install glibc and linux kernel headers."
2322   fi
2323 fi
2324
2325 ##########################################
2326 # lzo check
2327
2328 if test "$lzo" != "no" ; then
2329     cat > $TMPC << EOF
2330 #include <lzo/lzo1x.h>
2331 int main(void) { lzo_version(); return 0; }
2332 EOF
2333     if compile_prog "" "-llzo2" ; then
2334         libs_softmmu="$libs_softmmu -llzo2"
2335         lzo="yes"
2336     else
2337         if test "$lzo" = "yes"; then
2338             feature_not_found "liblzo2" "Install liblzo2 devel"
2339         fi
2340         lzo="no"
2341     fi
2342 fi
2343
2344 ##########################################
2345 # snappy check
2346
2347 if test "$snappy" != "no" ; then
2348     cat > $TMPC << EOF
2349 #include <snappy-c.h>
2350 int main(void) { snappy_max_compressed_length(4096); return 0; }
2351 EOF
2352     if compile_prog "" "-lsnappy" ; then
2353         libs_softmmu="$libs_softmmu -lsnappy"
2354         snappy="yes"
2355     else
2356         if test "$snappy" = "yes"; then
2357             feature_not_found "libsnappy" "Install libsnappy devel"
2358         fi
2359         snappy="no"
2360     fi
2361 fi
2362
2363 ##########################################
2364 # bzip2 check
2365
2366 if test "$bzip2" != "no" ; then
2367     cat > $TMPC << EOF
2368 #include <bzlib.h>
2369 int main(void) { BZ2_bzlibVersion(); return 0; }
2370 EOF
2371     if compile_prog "" "-lbz2" ; then
2372         bzip2="yes"
2373     else
2374         if test "$bzip2" = "yes"; then
2375             feature_not_found "libbzip2" "Install libbzip2 devel"
2376         fi
2377         bzip2="no"
2378     fi
2379 fi
2380
2381 ##########################################
2382 # lzfse check
2383
2384 if test "$lzfse" != "no" ; then
2385     cat > $TMPC << EOF
2386 #include <lzfse.h>
2387 int main(void) { lzfse_decode_scratch_size(); return 0; }
2388 EOF
2389     if compile_prog "" "-llzfse" ; then
2390         lzfse="yes"
2391     else
2392         if test "$lzfse" = "yes"; then
2393             feature_not_found "lzfse" "Install lzfse devel"
2394         fi
2395         lzfse="no"
2396     fi
2397 fi
2398
2399 ##########################################
2400 # libseccomp check
2401
2402 if test "$seccomp" != "no" ; then
2403     libseccomp_minver="2.3.0"
2404     if $pkg_config --atleast-version=$libseccomp_minver libseccomp ; then
2405         seccomp_cflags="$($pkg_config --cflags libseccomp)"
2406         seccomp_libs="$($pkg_config --libs libseccomp)"
2407         seccomp="yes"
2408     else
2409         if test "$seccomp" = "yes" ; then
2410             feature_not_found "libseccomp" \
2411                  "Install libseccomp devel >= $libseccomp_minver"
2412         fi
2413         seccomp="no"
2414     fi
2415 fi
2416 ##########################################
2417 # xen probe
2418
2419 if test "$xen" != "no" ; then
2420   # Check whether Xen library path is specified via --extra-ldflags to avoid
2421   # overriding this setting with pkg-config output. If not, try pkg-config
2422   # to obtain all needed flags.
2423
2424   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2425      $pkg_config --exists xencontrol ; then
2426     xen_ctrl_version="$(printf '%d%02d%02d' \
2427       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2428     xen=yes
2429     xen_pc="xencontrol xenstore xenguest xenforeignmemory xengnttab"
2430     xen_pc="$xen_pc xenevtchn xendevicemodel"
2431     if $pkg_config --exists xentoolcore; then
2432       xen_pc="$xen_pc xentoolcore"
2433     fi
2434     QEMU_CFLAGS="$QEMU_CFLAGS $($pkg_config --cflags $xen_pc)"
2435     libs_softmmu="$($pkg_config --libs $xen_pc) $libs_softmmu"
2436   else
2437
2438     xen_libs="-lxenstore -lxenctrl -lxenguest"
2439     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2440
2441     # First we test whether Xen headers and libraries are available.
2442     # If no, we are done and there is no Xen support.
2443     # If yes, more tests are run to detect the Xen version.
2444
2445     # Xen (any)
2446     cat > $TMPC <<EOF
2447 #include <xenctrl.h>
2448 int main(void) {
2449   return 0;
2450 }
2451 EOF
2452     if ! compile_prog "" "$xen_libs" ; then
2453       # Xen not found
2454       if test "$xen" = "yes" ; then
2455         feature_not_found "xen" "Install xen devel"
2456       fi
2457       xen=no
2458
2459     # Xen unstable
2460     elif
2461         cat > $TMPC <<EOF &&
2462 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2463 #define __XEN_TOOLS__
2464 #include <xendevicemodel.h>
2465 #include <xenforeignmemory.h>
2466 int main(void) {
2467   xendevicemodel_handle *xd;
2468   xenforeignmemory_handle *xfmem;
2469
2470   xd = xendevicemodel_open(0, 0);
2471   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2472
2473   xfmem = xenforeignmemory_open(0, 0);
2474   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2475
2476   return 0;
2477 }
2478 EOF
2479         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2480       then
2481       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2482       xen_ctrl_version=41100
2483       xen=yes
2484     elif
2485         cat > $TMPC <<EOF &&
2486 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2487 #include <xenforeignmemory.h>
2488 #include <xentoolcore.h>
2489 int main(void) {
2490   xenforeignmemory_handle *xfmem;
2491
2492   xfmem = xenforeignmemory_open(0, 0);
2493   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2494   xentoolcore_restrict_all(0);
2495
2496   return 0;
2497 }
2498 EOF
2499         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2500       then
2501       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2502       xen_ctrl_version=41000
2503       xen=yes
2504     elif
2505         cat > $TMPC <<EOF &&
2506 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2507 #define __XEN_TOOLS__
2508 #include <xendevicemodel.h>
2509 int main(void) {
2510   xendevicemodel_handle *xd;
2511
2512   xd = xendevicemodel_open(0, 0);
2513   xendevicemodel_close(xd);
2514
2515   return 0;
2516 }
2517 EOF
2518         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2519       then
2520       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2521       xen_ctrl_version=40900
2522       xen=yes
2523     elif
2524         cat > $TMPC <<EOF &&
2525 /*
2526  * If we have stable libs the we don't want the libxc compat
2527  * layers, regardless of what CFLAGS we may have been given.
2528  *
2529  * Also, check if xengnttab_grant_copy_segment_t is defined and
2530  * grant copy operation is implemented.
2531  */
2532 #undef XC_WANT_COMPAT_EVTCHN_API
2533 #undef XC_WANT_COMPAT_GNTTAB_API
2534 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2535 #include <xenctrl.h>
2536 #include <xenstore.h>
2537 #include <xenevtchn.h>
2538 #include <xengnttab.h>
2539 #include <xenforeignmemory.h>
2540 #include <stdint.h>
2541 #include <xen/hvm/hvm_info_table.h>
2542 #if !defined(HVM_MAX_VCPUS)
2543 # error HVM_MAX_VCPUS not defined
2544 #endif
2545 int main(void) {
2546   xc_interface *xc = NULL;
2547   xenforeignmemory_handle *xfmem;
2548   xenevtchn_handle *xe;
2549   xengnttab_handle *xg;
2550   xengnttab_grant_copy_segment_t* seg = NULL;
2551
2552   xs_daemon_open();
2553
2554   xc = xc_interface_open(0, 0, 0);
2555   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2556   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2557   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2558   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2559
2560   xfmem = xenforeignmemory_open(0, 0);
2561   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2562
2563   xe = xenevtchn_open(0, 0);
2564   xenevtchn_fd(xe);
2565
2566   xg = xengnttab_open(0, 0);
2567   xengnttab_grant_copy(xg, 0, seg);
2568
2569   return 0;
2570 }
2571 EOF
2572         compile_prog "" "$xen_libs $xen_stable_libs"
2573       then
2574       xen_ctrl_version=40800
2575       xen=yes
2576     elif
2577         cat > $TMPC <<EOF &&
2578 /*
2579  * If we have stable libs the we don't want the libxc compat
2580  * layers, regardless of what CFLAGS we may have been given.
2581  */
2582 #undef XC_WANT_COMPAT_EVTCHN_API
2583 #undef XC_WANT_COMPAT_GNTTAB_API
2584 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2585 #include <xenctrl.h>
2586 #include <xenstore.h>
2587 #include <xenevtchn.h>
2588 #include <xengnttab.h>
2589 #include <xenforeignmemory.h>
2590 #include <stdint.h>
2591 #include <xen/hvm/hvm_info_table.h>
2592 #if !defined(HVM_MAX_VCPUS)
2593 # error HVM_MAX_VCPUS not defined
2594 #endif
2595 int main(void) {
2596   xc_interface *xc = NULL;
2597   xenforeignmemory_handle *xfmem;
2598   xenevtchn_handle *xe;
2599   xengnttab_handle *xg;
2600
2601   xs_daemon_open();
2602
2603   xc = xc_interface_open(0, 0, 0);
2604   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2605   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2606   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2607   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2608
2609   xfmem = xenforeignmemory_open(0, 0);
2610   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2611
2612   xe = xenevtchn_open(0, 0);
2613   xenevtchn_fd(xe);
2614
2615   xg = xengnttab_open(0, 0);
2616   xengnttab_map_grant_ref(xg, 0, 0, 0);
2617
2618   return 0;
2619 }
2620 EOF
2621         compile_prog "" "$xen_libs $xen_stable_libs"
2622       then
2623       xen_ctrl_version=40701
2624       xen=yes
2625
2626     # Xen 4.6
2627     elif
2628         cat > $TMPC <<EOF &&
2629 #include <xenctrl.h>
2630 #include <xenstore.h>
2631 #include <stdint.h>
2632 #include <xen/hvm/hvm_info_table.h>
2633 #if !defined(HVM_MAX_VCPUS)
2634 # error HVM_MAX_VCPUS not defined
2635 #endif
2636 int main(void) {
2637   xc_interface *xc;
2638   xs_daemon_open();
2639   xc = xc_interface_open(0, 0, 0);
2640   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2641   xc_gnttab_open(NULL, 0);
2642   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2643   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2644   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2645   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2646   return 0;
2647 }
2648 EOF
2649         compile_prog "" "$xen_libs"
2650       then
2651       xen_ctrl_version=40600
2652       xen=yes
2653
2654     # Xen 4.5
2655     elif
2656         cat > $TMPC <<EOF &&
2657 #include <xenctrl.h>
2658 #include <xenstore.h>
2659 #include <stdint.h>
2660 #include <xen/hvm/hvm_info_table.h>
2661 #if !defined(HVM_MAX_VCPUS)
2662 # error HVM_MAX_VCPUS not defined
2663 #endif
2664 int main(void) {
2665   xc_interface *xc;
2666   xs_daemon_open();
2667   xc = xc_interface_open(0, 0, 0);
2668   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2669   xc_gnttab_open(NULL, 0);
2670   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2671   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2672   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2673   return 0;
2674 }
2675 EOF
2676         compile_prog "" "$xen_libs"
2677       then
2678       xen_ctrl_version=40500
2679       xen=yes
2680
2681     elif
2682         cat > $TMPC <<EOF &&
2683 #include <xenctrl.h>
2684 #include <xenstore.h>
2685 #include <stdint.h>
2686 #include <xen/hvm/hvm_info_table.h>
2687 #if !defined(HVM_MAX_VCPUS)
2688 # error HVM_MAX_VCPUS not defined
2689 #endif
2690 int main(void) {
2691   xc_interface *xc;
2692   xs_daemon_open();
2693   xc = xc_interface_open(0, 0, 0);
2694   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2695   xc_gnttab_open(NULL, 0);
2696   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2697   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2698   return 0;
2699 }
2700 EOF
2701         compile_prog "" "$xen_libs"
2702       then
2703       xen_ctrl_version=40200
2704       xen=yes
2705
2706     else
2707       if test "$xen" = "yes" ; then
2708         feature_not_found "xen (unsupported version)" \
2709                           "Install a supported xen (xen 4.2 or newer)"
2710       fi
2711       xen=no
2712     fi
2713
2714     if test "$xen" = yes; then
2715       if test $xen_ctrl_version -ge 40701  ; then
2716         libs_softmmu="$xen_stable_libs $libs_softmmu"
2717       fi
2718       libs_softmmu="$xen_libs $libs_softmmu"
2719     fi
2720   fi
2721 fi
2722
2723 if test "$xen_pci_passthrough" != "no"; then
2724   if test "$xen" = "yes" && test "$linux" = "yes"; then
2725     xen_pci_passthrough=yes
2726   else
2727     if test "$xen_pci_passthrough" = "yes"; then
2728       error_exit "User requested feature Xen PCI Passthrough" \
2729           " but this feature requires /sys from Linux"
2730     fi
2731     xen_pci_passthrough=no
2732   fi
2733 fi
2734
2735 ##########################################
2736 # Windows Hypervisor Platform accelerator (WHPX) check
2737 if test "$whpx" != "no" ; then
2738     if check_include "WinHvPlatform.h" && check_include "WinHvEmulation.h"; then
2739         whpx="yes"
2740     else
2741         if test "$whpx" = "yes"; then
2742             feature_not_found "WinHvPlatform" "WinHvEmulation is not installed"
2743         fi
2744         whpx="no"
2745     fi
2746 fi
2747
2748 ##########################################
2749 # Sparse probe
2750 if test "$sparse" != "no" ; then
2751   if has cgcc; then
2752     sparse=yes
2753   else
2754     if test "$sparse" = "yes" ; then
2755       feature_not_found "sparse" "Install sparse binary"
2756     fi
2757     sparse=no
2758   fi
2759 fi
2760
2761 ##########################################
2762 # X11 probe
2763 if $pkg_config --exists "x11"; then
2764     have_x11=yes
2765     x11_cflags=$($pkg_config --cflags x11)
2766     x11_libs=$($pkg_config --libs x11)
2767 fi
2768
2769 ##########################################
2770 # GTK probe
2771
2772 if test "$gtk" != "no"; then
2773     gtkpackage="gtk+-3.0"
2774     gtkx11package="gtk+-x11-3.0"
2775     gtkversion="3.14.0"
2776     if $pkg_config --exists "$gtkpackage >= $gtkversion"; then
2777         gtk_cflags=$($pkg_config --cflags $gtkpackage)
2778         gtk_libs=$($pkg_config --libs $gtkpackage)
2779         gtk_version=$($pkg_config --modversion $gtkpackage)
2780         if $pkg_config --exists "$gtkx11package >= $gtkversion"; then
2781             need_x11=yes
2782             gtk_cflags="$gtk_cflags $x11_cflags"
2783             gtk_libs="$gtk_libs $x11_libs"
2784         fi
2785         gtk="yes"
2786     elif test "$gtk" = "yes"; then
2787         feature_not_found "gtk" "Install gtk3-devel"
2788     else
2789         gtk="no"
2790     fi
2791 fi
2792
2793
2794 ##########################################
2795 # GNUTLS probe
2796
2797 if test "$gnutls" != "no"; then
2798     pass="no"
2799     if $pkg_config --exists "gnutls >= 3.1.18"; then
2800         gnutls_cflags=$($pkg_config --cflags gnutls)
2801         gnutls_libs=$($pkg_config --libs gnutls)
2802         # Packaging for the static libraries is not always correct.
2803         # At least ubuntu 18.04 ships only shared libraries.
2804         write_c_skeleton
2805         if compile_prog "" "$gnutls_libs" ; then
2806             LIBS="$gnutls_libs $LIBS"
2807             QEMU_CFLAGS="$QEMU_CFLAGS $gnutls_cflags"
2808             pass="yes"
2809         fi
2810     fi
2811     if test "$pass" = "no" && test "$gnutls" = "yes"; then
2812         feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
2813     else
2814         gnutls="$pass"
2815     fi
2816 fi
2817
2818
2819 # If user didn't give a --disable/enable-gcrypt flag,
2820 # then mark as disabled if user requested nettle
2821 # explicitly
2822 if test -z "$gcrypt"
2823 then
2824     if test "$nettle" = "yes"
2825     then
2826         gcrypt="no"
2827     fi
2828 fi
2829
2830 # If user didn't give a --disable/enable-nettle flag,
2831 # then mark as disabled if user requested gcrypt
2832 # explicitly
2833 if test -z "$nettle"
2834 then
2835     if test "$gcrypt" = "yes"
2836     then
2837         nettle="no"
2838     fi
2839 fi
2840
2841 has_libgcrypt() {
2842     if ! has "libgcrypt-config"
2843     then
2844         return 1
2845     fi
2846
2847     if test -n "$cross_prefix"
2848     then
2849         host=$(libgcrypt-config --host)
2850         if test "$host-" != $cross_prefix
2851         then
2852             return 1
2853         fi
2854     fi
2855
2856     maj=`libgcrypt-config --version | awk -F . '{print $1}'`
2857     min=`libgcrypt-config --version | awk -F . '{print $2}'`
2858
2859     if test $maj != 1 || test $min -lt 5
2860     then
2861        return 1
2862     fi
2863
2864     return 0
2865 }
2866
2867
2868 if test "$nettle" != "no"; then
2869     pass="no"
2870     if $pkg_config --exists "nettle >= 2.7.1"; then
2871         nettle_cflags=$($pkg_config --cflags nettle)
2872         nettle_libs=$($pkg_config --libs nettle)
2873         nettle_version=$($pkg_config --modversion nettle)
2874         # Link test to make sure the given libraries work (e.g for static).
2875         write_c_skeleton
2876         if compile_prog "" "$nettle_libs" ; then
2877             LIBS="$nettle_libs $LIBS"
2878             QEMU_CFLAGS="$QEMU_CFLAGS $nettle_cflags"
2879             if test -z "$gcrypt"; then
2880                gcrypt="no"
2881             fi
2882             pass="yes"
2883         fi
2884     fi
2885     if test "$pass" = "no" && test "$nettle" = "yes"; then
2886         feature_not_found "nettle" "Install nettle devel >= 2.7.1"
2887     else
2888         nettle="$pass"
2889     fi
2890 fi
2891
2892 if test "$gcrypt" != "no"; then
2893     pass="no"
2894     if has_libgcrypt; then
2895         gcrypt_cflags=$(libgcrypt-config --cflags)
2896         gcrypt_libs=$(libgcrypt-config --libs)
2897         # Debian has removed -lgpg-error from libgcrypt-config
2898         # as it "spreads unnecessary dependencies" which in
2899         # turn breaks static builds...
2900         if test "$static" = "yes"
2901         then
2902             gcrypt_libs="$gcrypt_libs -lgpg-error"
2903         fi
2904
2905         # Link test to make sure the given libraries work (e.g for static).
2906         write_c_skeleton
2907         if compile_prog "" "$gcrypt_libs" ; then
2908             LIBS="$gcrypt_libs $LIBS"
2909             QEMU_CFLAGS="$QEMU_CFLAGS $gcrypt_cflags"
2910             pass="yes"
2911         fi
2912     fi
2913     if test "$pass" = "yes"; then
2914         gcrypt="yes"
2915         cat > $TMPC << EOF
2916 #include <gcrypt.h>
2917 int main(void) {
2918   gcry_mac_hd_t handle;
2919   gcry_mac_open(&handle, GCRY_MAC_HMAC_MD5,
2920                 GCRY_MAC_FLAG_SECURE, NULL);
2921   return 0;
2922 }
2923 EOF
2924         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
2925             gcrypt_hmac=yes
2926         fi
2927     elif test "$gcrypt" = "yes"; then
2928         feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
2929     else
2930         gcrypt="no"
2931     fi
2932 fi
2933
2934
2935 if test "$gcrypt" = "yes" && test "$nettle" = "yes"
2936 then
2937     error_exit "Only one of gcrypt & nettle can be enabled"
2938 fi
2939
2940 ##########################################
2941 # libtasn1 - only for the TLS creds/session test suite
2942
2943 tasn1=yes
2944 tasn1_cflags=""
2945 tasn1_libs=""
2946 if $pkg_config --exists "libtasn1"; then
2947     tasn1_cflags=$($pkg_config --cflags libtasn1)
2948     tasn1_libs=$($pkg_config --libs libtasn1)
2949 else
2950     tasn1=no
2951 fi
2952
2953
2954 ##########################################
2955 # PAM probe
2956
2957 if test "$auth_pam" != "no"; then
2958     cat > $TMPC <<EOF
2959 #include <security/pam_appl.h>
2960 #include <stdio.h>
2961 int main(void) {
2962    const char *service_name = "qemu";
2963    const char *user = "frank";
2964    const struct pam_conv pam_conv = { 0 };
2965    pam_handle_t *pamh = NULL;
2966    pam_start(service_name, user, &pam_conv, &pamh);
2967    return 0;
2968 }
2969 EOF
2970     if compile_prog "" "-lpam" ; then
2971         auth_pam=yes
2972     else
2973         if test "$auth_pam" = "yes"; then
2974             feature_not_found "PAM" "Install PAM development package"
2975         else
2976             auth_pam=no
2977         fi
2978     fi
2979 fi
2980
2981 ##########################################
2982 # getifaddrs (for tests/test-io-channel-socket )
2983
2984 have_ifaddrs_h=yes
2985 if ! check_include "ifaddrs.h" ; then
2986   have_ifaddrs_h=no
2987 fi
2988
2989 ##########################################
2990 # VTE probe
2991
2992 if test "$vte" != "no"; then
2993     vteminversion="0.32.0"
2994     if $pkg_config --exists "vte-2.91"; then
2995       vtepackage="vte-2.91"
2996     else
2997       vtepackage="vte-2.90"
2998     fi
2999     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
3000         vte_cflags=$($pkg_config --cflags $vtepackage)
3001         vte_libs=$($pkg_config --libs $vtepackage)
3002         vteversion=$($pkg_config --modversion $vtepackage)
3003         vte="yes"
3004     elif test "$vte" = "yes"; then
3005         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
3006     else
3007         vte="no"
3008     fi
3009 fi
3010
3011 ##########################################
3012 # SDL probe
3013
3014 # Look for sdl configuration program (pkg-config or sdl-config).  Try
3015 # sdl-config even without cross prefix, and favour pkg-config over sdl-config.
3016
3017 sdl_probe ()
3018 {
3019   if $pkg_config sdl2 --exists; then
3020     sdlconfig="$pkg_config sdl2"
3021     sdlversion=$($sdlconfig --modversion 2>/dev/null)
3022   elif has ${sdl_config}; then
3023     sdlconfig="$sdl2_config"
3024     sdlversion=$($sdlconfig --version)
3025   else
3026     if test "$sdl" = "yes" ; then
3027       feature_not_found "sdl" "Install SDL2-devel"
3028     fi
3029     sdl=no
3030     # no need to do the rest
3031     return
3032   fi
3033   if test -n "$cross_prefix" && test "$(basename "$sdlconfig")" = sdl-config; then
3034     echo warning: using "\"$sdlconfig\"" to detect cross-compiled sdl >&2
3035   fi
3036
3037   cat > $TMPC << EOF
3038 #include <SDL.h>
3039 #undef main /* We don't want SDL to override our main() */
3040 int main( void ) { return SDL_Init (SDL_INIT_VIDEO); }
3041 EOF
3042   sdl_cflags=$($sdlconfig --cflags 2>/dev/null)
3043   sdl_cflags="$sdl_cflags -Wno-undef"  # workaround 2.0.8 bug
3044   if test "$static" = "yes" ; then
3045     if $pkg_config sdl2 --exists; then
3046       sdl_libs=$($pkg_config sdl2 --static --libs 2>/dev/null)
3047     else
3048       sdl_libs=$($sdlconfig --static-libs 2>/dev/null)
3049     fi
3050   else
3051     sdl_libs=$($sdlconfig --libs 2>/dev/null)
3052   fi
3053   if compile_prog "$sdl_cflags" "$sdl_libs" ; then
3054     sdl=yes
3055
3056     # static link with sdl ? (note: sdl.pc's --static --libs is broken)
3057     if test "$sdl" = "yes" && test "$static" = "yes" ; then
3058       if test $? = 0 && echo $sdl_libs | grep -- -laa > /dev/null; then
3059          sdl_libs="$sdl_libs $(aalib-config --static-libs 2>/dev/null)"
3060          sdl_cflags="$sdl_cflags $(aalib-config --cflags 2>/dev/null)"
3061       fi
3062       if compile_prog "$sdl_cflags" "$sdl_libs" ; then
3063         :
3064       else
3065         sdl=no
3066       fi
3067     fi # static link
3068   else # sdl not found
3069     if test "$sdl" = "yes" ; then
3070       feature_not_found "sdl" "Install SDL2 devel"
3071     fi
3072     sdl=no
3073   fi # sdl compile test
3074 }
3075
3076 sdl_image_probe ()
3077 {
3078     if test "$sdl_image" != "no" ; then
3079         if $pkg_config SDL2_image --exists; then
3080             if test "$static" = "yes"; then
3081                 sdl_image_libs=$($pkg_config SDL2_image --libs --static 2>/dev/null)
3082             else
3083                 sdl_image_libs=$($pkg_config SDL2_image --libs 2>/dev/null)
3084             fi
3085             sdl_image_cflags=$($pkg_config SDL2_image --cflags 2>/dev/null)
3086             sdl_image=yes
3087
3088             sdl_cflags="$sdl_cflags $sdl_image_cflags"
3089             sdl_libs="$sdl_libs $sdl_image_libs"
3090         else
3091             if test "$sdl_image" = "yes" ; then
3092                 feature_not_found "sdl_image" "Install SDL Image devel"
3093             else
3094                 sdl_image=no
3095             fi
3096         fi
3097     fi
3098 }
3099
3100 if test "$sdl" != "no" ; then
3101   sdl_probe
3102 fi
3103
3104 if test "$sdl" = "yes" ; then
3105   sdl_image_probe
3106 else
3107   if test "$sdl_image" = "yes"; then
3108     echo "warning: SDL Image requested, but SDL is not available, disabling"
3109   fi
3110   sdl_image=no
3111 fi
3112
3113 if test "$sdl" = "yes" ; then
3114   cat > $TMPC <<EOF
3115 #include <SDL.h>
3116 #if defined(SDL_VIDEO_DRIVER_X11)
3117 #include <X11/XKBlib.h>
3118 #else
3119 #error No x11 support
3120 #endif
3121 int main(void) { return 0; }
3122 EOF
3123   if compile_prog "$sdl_cflags $x11_cflags" "$sdl_libs $x11_libs" ; then
3124     need_x11=yes
3125     sdl_cflags="$sdl_cflags $x11_cflags"
3126     sdl_libs="$sdl_libs $x11_libs"
3127   fi
3128 fi
3129
3130 ##########################################
3131 # RDMA needs OpenFabrics libraries
3132 if test "$rdma" != "no" ; then
3133   cat > $TMPC <<EOF
3134 #include <rdma/rdma_cma.h>
3135 int main(void) { return 0; }
3136 EOF
3137   rdma_libs="-lrdmacm -libverbs -libumad"
3138   if compile_prog "" "$rdma_libs" ; then
3139     rdma="yes"
3140     libs_softmmu="$libs_softmmu $rdma_libs"
3141   else
3142     if test "$rdma" = "yes" ; then
3143         error_exit \
3144             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
3145             " Your options:" \
3146             "  (1) Fast: Install infiniband packages (devel) from your distro." \
3147             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
3148             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
3149     fi
3150     rdma="no"
3151   fi
3152 fi
3153
3154 ##########################################
3155 # PVRDMA detection
3156
3157 cat > $TMPC <<EOF &&
3158 #include <sys/mman.h>
3159
3160 int
3161 main(void)
3162 {
3163     char buf = 0;
3164     void *addr = &buf;
3165     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3166
3167     return 0;
3168 }
3169 EOF
3170
3171 if test "$rdma" = "yes" ; then
3172     case "$pvrdma" in
3173     "")
3174         if compile_prog "" ""; then
3175             pvrdma="yes"
3176         else
3177             pvrdma="no"
3178         fi
3179         ;;
3180     "yes")
3181         if ! compile_prog "" ""; then
3182             error_exit "PVRDMA is not supported since mremap is not implemented"
3183         fi
3184         pvrdma="yes"
3185         ;;
3186     "no")
3187         pvrdma="no"
3188         ;;
3189     esac
3190 else
3191     if test "$pvrdma" = "yes" ; then
3192         error_exit "PVRDMA requires rdma suppport"
3193     fi
3194     pvrdma="no"
3195 fi
3196
3197 ##########################################
3198 # VNC SASL detection
3199 if test "$vnc" = "yes" && test "$vnc_sasl" != "no" ; then
3200   cat > $TMPC <<EOF
3201 #include <sasl/sasl.h>
3202 #include <stdio.h>
3203 int main(void) { sasl_server_init(NULL, "qemu"); return 0; }
3204 EOF
3205   # Assuming Cyrus-SASL installed in /usr prefix
3206   vnc_sasl_cflags=""
3207   vnc_sasl_libs="-lsasl2"
3208   if compile_prog "$vnc_sasl_cflags" "$vnc_sasl_libs" ; then
3209     vnc_sasl=yes
3210     libs_softmmu="$vnc_sasl_libs $libs_softmmu"
3211     QEMU_CFLAGS="$QEMU_CFLAGS $vnc_sasl_cflags"
3212   else
3213     if test "$vnc_sasl" = "yes" ; then
3214       feature_not_found "vnc-sasl" "Install Cyrus SASL devel"
3215     fi
3216     vnc_sasl=no
3217   fi
3218 fi
3219
3220 ##########################################
3221 # VNC JPEG detection
3222 if test "$vnc" = "yes" && test "$vnc_jpeg" != "no" ; then
3223 cat > $TMPC <<EOF
3224 #include <stdio.h>
3225 #include <jpeglib.h>
3226 int main(void) { struct jpeg_compress_struct s; jpeg_create_compress(&s); return 0; }
3227 EOF
3228     vnc_jpeg_cflags=""
3229     vnc_jpeg_libs="-ljpeg"
3230   if compile_prog "$vnc_jpeg_cflags" "$vnc_jpeg_libs" ; then
3231     vnc_jpeg=yes
3232     libs_softmmu="$vnc_jpeg_libs $libs_softmmu"
3233     QEMU_CFLAGS="$QEMU_CFLAGS $vnc_jpeg_cflags"
3234   else
3235     if test "$vnc_jpeg" = "yes" ; then
3236       feature_not_found "vnc-jpeg" "Install libjpeg-turbo devel"
3237     fi
3238     vnc_jpeg=no
3239   fi
3240 fi
3241
3242 ##########################################
3243 # VNC PNG detection
3244 if test "$vnc" = "yes" && test "$vnc_png" != "no" ; then
3245 cat > $TMPC <<EOF
3246 //#include <stdio.h>
3247 #include <png.h>
3248 #include <stddef.h>
3249 int main(void) {
3250     png_structp png_ptr;
3251     png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
3252     return png_ptr != 0;
3253 }
3254 EOF
3255   if $pkg_config libpng --exists; then
3256     vnc_png_cflags=$($pkg_config libpng --cflags)
3257     vnc_png_libs=$($pkg_config libpng --libs)
3258   else
3259     vnc_png_cflags=""
3260     vnc_png_libs="-lpng"
3261   fi
3262   if compile_prog "$vnc_png_cflags" "$vnc_png_libs" ; then
3263     vnc_png=yes
3264     libs_softmmu="$vnc_png_libs $libs_softmmu"
3265     QEMU_CFLAGS="$QEMU_CFLAGS $vnc_png_cflags"
3266   else
3267     if test "$vnc_png" = "yes" ; then
3268       feature_not_found "vnc-png" "Install libpng devel"
3269     fi
3270     vnc_png=no
3271   fi
3272 fi
3273
3274 ##########################################
3275 # xkbcommon probe
3276 if test "$xkbcommon" != "no" ; then
3277   if $pkg_config xkbcommon --exists; then
3278     xkbcommon_cflags=$($pkg_config xkbcommon --cflags)
3279     xkbcommon_libs=$($pkg_config xkbcommon --libs)
3280     xkbcommon=yes
3281   else
3282     if test "$xkbcommon" = "yes" ; then
3283       feature_not_found "xkbcommon" "Install libxkbcommon-devel"
3284     fi
3285     xkbcommon=no
3286   fi
3287 fi
3288
3289
3290 ##########################################
3291 # xfsctl() probe, used for file-posix.c
3292 if test "$xfs" != "no" ; then
3293   cat > $TMPC << EOF
3294 #include <stddef.h>  /* NULL */
3295 #include <xfs/xfs.h>
3296 int main(void)
3297 {
3298     xfsctl(NULL, 0, 0, NULL);
3299     return 0;
3300 }
3301 EOF
3302   if compile_prog "" "" ; then
3303     xfs="yes"
3304   else
3305     if test "$xfs" = "yes" ; then
3306       feature_not_found "xfs" "Instal xfsprogs/xfslibs devel"
3307     fi
3308     xfs=no
3309   fi
3310 fi
3311
3312 ##########################################
3313 # vde libraries probe
3314 if test "$vde" != "no" ; then
3315   vde_libs="-lvdeplug"
3316   cat > $TMPC << EOF
3317 #include <libvdeplug.h>
3318 int main(void)
3319 {
3320     struct vde_open_args a = {0, 0, 0};
3321     char s[] = "";
3322     vde_open(s, s, &a);
3323     return 0;
3324 }
3325 EOF
3326   if compile_prog "" "$vde_libs" ; then
3327     vde=yes
3328   else
3329     if test "$vde" = "yes" ; then
3330       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3331     fi
3332     vde=no
3333   fi
3334 fi
3335
3336 ##########################################
3337 # netmap support probe
3338 # Apart from looking for netmap headers, we make sure that the host API version
3339 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3340 # a minor/major version number. Minor new features will be marked with values up
3341 # to 15, and if something happens that requires a change to the backend we will
3342 # move above 15, submit the backend fixes and modify this two bounds.
3343 if test "$netmap" != "no" ; then
3344   cat > $TMPC << EOF
3345 #include <inttypes.h>
3346 #include <net/if.h>
3347 #include <net/netmap.h>
3348 #include <net/netmap_user.h>
3349 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3350 #error
3351 #endif
3352 int main(void) { return 0; }
3353 EOF
3354   if compile_prog "" "" ; then
3355     netmap=yes
3356   else
3357     if test "$netmap" = "yes" ; then
3358       feature_not_found "netmap"
3359     fi
3360     netmap=no
3361   fi
3362 fi
3363
3364 ##########################################
3365 # libcap-ng library probe
3366 if test "$cap_ng" != "no" ; then
3367   cap_libs="-lcap-ng"
3368   cat > $TMPC << EOF
3369 #include <cap-ng.h>
3370 int main(void)
3371 {
3372     capng_capability_to_name(CAPNG_EFFECTIVE);
3373     return 0;
3374 }
3375 EOF
3376   if compile_prog "" "$cap_libs" ; then
3377     cap_ng=yes
3378     libs_tools="$cap_libs $libs_tools"
3379   else
3380     if test "$cap_ng" = "yes" ; then
3381       feature_not_found "cap_ng" "Install libcap-ng devel"
3382     fi
3383     cap_ng=no
3384   fi
3385 fi
3386
3387 ##########################################
3388 # Sound support libraries probe
3389
3390 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3391 for drv in $audio_drv_list; do
3392     case $drv in
3393     alsa | try-alsa)
3394     if $pkg_config alsa --exists; then
3395         alsa_libs=$($pkg_config alsa --libs)
3396         if test "$drv" = "try-alsa"; then
3397             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3398         fi
3399     else
3400         if test "$drv" = "try-alsa"; then
3401             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3402         else
3403             error_exit "$drv check failed" \
3404                 "Make sure to have the $drv libs and headers installed."
3405         fi
3406     fi
3407     ;;
3408
3409     pa | try-pa)
3410     if $pkg_config libpulse --exists; then
3411         pulse_libs=$($pkg_config libpulse --libs)
3412         audio_pt_int="yes"
3413         if test "$drv" = "try-pa"; then
3414             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3415         fi
3416     else
3417         if test "$drv" = "try-pa"; then
3418             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3419         else
3420             error_exit "$drv check failed" \
3421                 "Make sure to have the $drv libs and headers installed."
3422         fi
3423     fi
3424     ;;
3425
3426     sdl)
3427     if test "$sdl" = "no"; then
3428         error_exit "sdl not found or disabled, can not use sdl audio driver"
3429     fi
3430     ;;
3431
3432     try-sdl)
3433     if test "$sdl" = "no"; then
3434         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3435     else
3436         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3437     fi
3438     ;;
3439
3440     coreaudio)
3441       coreaudio_libs="-framework CoreAudio"
3442     ;;
3443
3444     dsound)
3445       dsound_libs="-lole32 -ldxguid"
3446       audio_win_int="yes"
3447     ;;
3448
3449     oss)
3450       oss_libs="$oss_lib"
3451     ;;
3452
3453     *)
3454     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3455         error_exit "Unknown driver '$drv' selected" \
3456             "Possible drivers are: $audio_possible_drivers"
3457     }
3458     ;;
3459     esac
3460 done
3461
3462 ##########################################
3463 # BrlAPI probe
3464
3465 if test "$brlapi" != "no" ; then
3466   brlapi_libs="-lbrlapi"
3467   cat > $TMPC << EOF
3468 #include <brlapi.h>
3469 #include <stddef.h>
3470 int main( void ) { return brlapi__openConnection (NULL, NULL, NULL); }
3471 EOF
3472   if compile_prog "" "$brlapi_libs" ; then
3473     brlapi=yes
3474   else
3475     if test "$brlapi" = "yes" ; then
3476       feature_not_found "brlapi" "Install brlapi devel"
3477     fi
3478     brlapi=no
3479   fi
3480 fi
3481
3482 ##########################################
3483 # iconv probe
3484 if test "$iconv" != "no" ; then
3485   cat > $TMPC << EOF
3486 #include <iconv.h>
3487 int main(void) {
3488   iconv_t conv = iconv_open("WCHAR_T", "UCS-2");
3489   return conv != (iconv_t) -1;
3490 }
3491 EOF
3492   iconv_prefix_list="/usr/local:/usr"
3493   iconv_lib_list=":-liconv"
3494   IFS=:
3495   for iconv_prefix in $iconv_prefix_list; do
3496     IFS=:
3497     iconv_cflags="-I$iconv_prefix/include"
3498     iconv_ldflags="-L$iconv_prefix/lib"
3499     for iconv_link in $iconv_lib_list; do
3500       unset IFS
3501       iconv_lib="$iconv_ldflags $iconv_link"
3502       echo "looking at iconv in '$iconv_cflags' '$iconv_lib'" >> config.log
3503       if compile_prog "$iconv_cflags" "$iconv_lib" ; then
3504         iconv_found=yes
3505         break
3506       fi
3507     done
3508     if test "$iconv_found" = yes ; then
3509       break
3510     fi
3511   done
3512   if test "$iconv_found" = "yes" ; then
3513     iconv=yes
3514   else
3515     if test "$iconv" = "yes" ; then
3516       feature_not_found "iconv" "Install iconv devel"
3517     fi
3518     iconv=no
3519   fi
3520 fi
3521
3522 ##########################################
3523 # curses probe
3524 if test "$iconv" = "no" ; then
3525   # curses will need iconv
3526   curses=no
3527 fi
3528 if test "$curses" != "no" ; then
3529   if test "$mingw32" = "yes" ; then
3530     curses_inc_list="$($pkg_config --cflags ncurses 2>/dev/null):"
3531     curses_lib_list="$($pkg_config --libs ncurses 2>/dev/null):-lpdcurses"
3532   else
3533     curses_inc_list="$($pkg_config --cflags ncursesw 2>/dev/null):-I/usr/include/ncursesw:"
3534     curses_lib_list="$($pkg_config --libs ncursesw 2>/dev/null):-lncursesw:-lcursesw"
3535   fi
3536   curses_found=no
3537   cat > $TMPC << EOF
3538 #include <locale.h>
3539 #include <curses.h>
3540 #include <wchar.h>
3541 #include <langinfo.h>
3542 int main(void) {
3543   const char *codeset;
3544   wchar_t wch = L'w';
3545   setlocale(LC_ALL, "");
3546   resize_term(0, 0);
3547   addwstr(L"wide chars\n");
3548   addnwstr(&wch, 1);
3549   add_wch(WACS_DEGREE);
3550   codeset = nl_langinfo(CODESET);
3551   return codeset != 0;
3552 }
3553 EOF
3554   IFS=:
3555   for curses_inc in $curses_inc_list; do
3556     # Make sure we get the wide character prototypes
3557     curses_inc="-DNCURSES_WIDECHAR $curses_inc"
3558     IFS=:
3559     for curses_lib in $curses_lib_list; do
3560       unset IFS
3561       if compile_prog "$curses_inc" "$curses_lib" ; then
3562         curses_found=yes
3563         break
3564       fi
3565     done
3566     if test "$curses_found" = yes ; then
3567       break
3568     fi
3569   done
3570   unset IFS
3571   if test "$curses_found" = "yes" ; then
3572     curses=yes
3573   else
3574     if test "$curses" = "yes" ; then
3575       feature_not_found "curses" "Install ncurses devel"
3576     fi
3577     curses=no
3578   fi
3579 fi
3580
3581 ##########################################
3582 # curl probe
3583 if test "$curl" != "no" ; then
3584   if $pkg_config libcurl --exists; then
3585     curlconfig="$pkg_config libcurl"
3586   else
3587     curlconfig=curl-config
3588   fi
3589   cat > $TMPC << EOF
3590 #include <curl/curl.h>
3591 int main(void) { curl_easy_init(); curl_multi_setopt(0, 0, 0); return 0; }
3592 EOF
3593   curl_cflags=$($curlconfig --cflags 2>/dev/null)
3594   curl_libs=$($curlconfig --libs 2>/dev/null)
3595   if compile_prog "$curl_cflags" "$curl_libs" ; then
3596     curl=yes
3597   else
3598     if test "$curl" = "yes" ; then
3599       feature_not_found "curl" "Install libcurl devel"
3600     fi
3601     curl=no
3602   fi
3603 fi # test "$curl"
3604
3605 ##########################################
3606 # bluez support probe
3607 if test "$bluez" != "no" ; then
3608   cat > $TMPC << EOF
3609 #include <bluetooth/bluetooth.h>
3610 int main(void) { return bt_error(0); }
3611 EOF
3612   bluez_cflags=$($pkg_config --cflags bluez 2>/dev/null)
3613   bluez_libs=$($pkg_config --libs bluez 2>/dev/null)
3614   if compile_prog "$bluez_cflags" "$bluez_libs" ; then
3615     bluez=yes
3616     libs_softmmu="$bluez_libs $libs_softmmu"
3617   else
3618     if test "$bluez" = "yes" ; then
3619       feature_not_found "bluez" "Install bluez-libs/libbluetooth devel"
3620     fi
3621     bluez="no"
3622   fi
3623 fi
3624
3625 ##########################################
3626 # glib support probe
3627
3628 glib_req_ver=2.40
3629 glib_modules=gthread-2.0
3630 if test "$modules" = yes; then
3631     glib_modules="$glib_modules gmodule-export-2.0"
3632 fi
3633
3634 # This workaround is required due to a bug in pkg-config file for glib as it
3635 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3636
3637 if test "$static" = yes && test "$mingw32" = yes; then
3638     QEMU_CFLAGS="-DGLIB_STATIC_COMPILATION $QEMU_CFLAGS"
3639 fi
3640
3641 for i in $glib_modules; do
3642     if $pkg_config --atleast-version=$glib_req_ver $i; then
3643         glib_cflags=$($pkg_config --cflags $i)
3644         glib_libs=$($pkg_config --libs $i)
3645         QEMU_CFLAGS="$glib_cflags $QEMU_CFLAGS"
3646         LIBS="$glib_libs $LIBS"
3647         libs_qga="$glib_libs $libs_qga"
3648     else
3649         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3650     fi
3651 done
3652
3653 if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3654     gio=yes
3655     gio_cflags=$($pkg_config --cflags gio-2.0)
3656     gio_libs=$($pkg_config --libs gio-2.0)
3657 else
3658     gio=no
3659 fi
3660
3661 # Sanity check that the current size_t matches the
3662 # size that glib thinks it should be. This catches
3663 # problems on multi-arch where people try to build
3664 # 32-bit QEMU while pointing at 64-bit glib headers
3665 cat > $TMPC <<EOF
3666 #include <glib.h>
3667 #include <unistd.h>
3668
3669 #define QEMU_BUILD_BUG_ON(x) \
3670   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3671
3672 int main(void) {
3673    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3674    return 0;
3675 }
3676 EOF
3677
3678 if ! compile_prog "$CFLAGS" "$LIBS" ; then
3679     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3680                "You probably need to set PKG_CONFIG_LIBDIR"\
3681                "to point to the right pkg-config files for your"\
3682                "build target"
3683 fi
3684
3685 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3686 cat > $TMPC << EOF
3687 #include <glib.h>
3688 int main(void) { return 0; }
3689 EOF
3690 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3691     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3692         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3693         CFLAGS="-Wno-unknown-attributes $CFLAGS"
3694     fi
3695 fi
3696
3697 #########################################
3698 # zlib check
3699
3700 if test "$zlib" != "no" ; then
3701     if $pkg_config --exists zlib; then
3702         zlib_cflags=$($pkg_config --cflags zlib)
3703         zlib_libs=$($pkg_config --libs zlib)
3704         QEMU_CFLAGS="$zlib_cflags $QEMU_CFLAGS"
3705         LIBS="$zlib_libs $LIBS"
3706     else
3707         cat > $TMPC << EOF
3708 #include <zlib.h>
3709 int main(void) { zlibVersion(); return 0; }
3710 EOF
3711         if compile_prog "" "-lz" ; then
3712             LIBS="$LIBS -lz"
3713         else
3714             error_exit "zlib check failed" \
3715                 "Make sure to have the zlib libs and headers installed."
3716         fi
3717     fi
3718 fi
3719
3720 ##########################################
3721 # SHA command probe for modules
3722 if test "$modules" = yes; then
3723     shacmd_probe="sha1sum sha1 shasum"
3724     for c in $shacmd_probe; do
3725         if has $c; then
3726             shacmd="$c"
3727             break
3728         fi
3729     done
3730     if test "$shacmd" = ""; then
3731         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3732     fi
3733 fi
3734
3735 ##########################################
3736 # pixman support probe
3737
3738 if test "$want_tools" = "no" && test "$softmmu" = "no"; then
3739   pixman_cflags=
3740   pixman_libs=
3741 elif $pkg_config --atleast-version=0.21.8 pixman-1 > /dev/null 2>&1; then
3742   pixman_cflags=$($pkg_config --cflags pixman-1)
3743   pixman_libs=$($pkg_config --libs pixman-1)
3744 else
3745   error_exit "pixman >= 0.21.8 not present." \
3746       "Please install the pixman devel package."
3747 fi
3748
3749 ##########################################
3750 # libmpathpersist probe
3751
3752 if test "$mpath" != "no" ; then
3753   # probe for the new API
3754   cat > $TMPC <<EOF
3755 #include <libudev.h>
3756 #include <mpath_persist.h>
3757 unsigned mpath_mx_alloc_len = 1024;
3758 int logsink;
3759 static struct config *multipath_conf;
3760 extern struct udev *udev;
3761 extern struct config *get_multipath_config(void);
3762 extern void put_multipath_config(struct config *conf);
3763 struct udev *udev;
3764 struct config *get_multipath_config(void) { return multipath_conf; }
3765 void put_multipath_config(struct config *conf) { }
3766
3767 int main(void) {
3768     udev = udev_new();
3769     multipath_conf = mpath_lib_init();
3770     return 0;
3771 }
3772 EOF
3773   if compile_prog "" "-ludev -lmultipath -lmpathpersist" ; then
3774     mpathpersist=yes
3775     mpathpersist_new_api=yes
3776   else
3777     # probe for the old API
3778     cat > $TMPC <<EOF
3779 #include <libudev.h>
3780 #include <mpath_persist.h>
3781 unsigned mpath_mx_alloc_len = 1024;
3782 int logsink;
3783 int main(void) {
3784     struct udev *udev = udev_new();
3785     mpath_lib_init(udev);
3786     return 0;
3787 }
3788 EOF
3789     if compile_prog "" "-ludev -lmultipath -lmpathpersist" ; then
3790       mpathpersist=yes
3791       mpathpersist_new_api=no
3792     else
3793       mpathpersist=no
3794     fi
3795   fi
3796 else
3797   mpathpersist=no
3798 fi
3799
3800 ##########################################
3801 # libcap probe
3802
3803 if test "$cap" != "no" ; then
3804   cat > $TMPC <<EOF
3805 #include <stdio.h>
3806 #include <sys/capability.h>
3807 int main(void) { cap_t caps; caps = cap_init(); return caps != NULL; }
3808 EOF
3809   if compile_prog "" "-lcap" ; then
3810     cap=yes
3811   else
3812     cap=no
3813   fi
3814 fi
3815
3816 ##########################################
3817 # pthread probe
3818 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3819
3820 pthread=no
3821 cat > $TMPC << EOF
3822 #include <pthread.h>
3823 static void *f(void *p) { return NULL; }
3824 int main(void) {
3825   pthread_t thread;
3826   pthread_create(&thread, 0, f, 0);
3827   return 0;
3828 }
3829 EOF
3830 if compile_prog "" "" ; then
3831   pthread=yes
3832 else
3833   for pthread_lib in $PTHREADLIBS_LIST; do
3834     if compile_prog "" "$pthread_lib" ; then
3835       pthread=yes
3836       found=no
3837       for lib_entry in $LIBS; do
3838         if test "$lib_entry" = "$pthread_lib"; then
3839           found=yes
3840           break
3841         fi
3842       done
3843       if test "$found" = "no"; then
3844         LIBS="$pthread_lib $LIBS"
3845         libs_qga="$pthread_lib $libs_qga"
3846       fi
3847       PTHREAD_LIB="$pthread_lib"
3848       break
3849     fi
3850   done
3851 fi
3852
3853 if test "$mingw32" != yes && test "$pthread" = no; then
3854   error_exit "pthread check failed" \
3855       "Make sure to have the pthread libs and headers installed."
3856 fi
3857
3858 # check for pthread_setname_np with thread id
3859 pthread_setname_np_w_tid=no
3860 cat > $TMPC << EOF
3861 #include <pthread.h>
3862
3863 static void *f(void *p) { return NULL; }
3864 int main(void)
3865 {
3866     pthread_t thread;
3867     pthread_create(&thread, 0, f, 0);
3868     pthread_setname_np(thread, "QEMU");
3869     return 0;
3870 }
3871 EOF
3872 if compile_prog "" "$pthread_lib" ; then
3873   pthread_setname_np_w_tid=yes
3874 fi
3875
3876 # check for pthread_setname_np without thread id
3877 pthread_setname_np_wo_tid=no
3878 cat > $TMPC << EOF
3879 #include <pthread.h>
3880
3881 static void *f(void *p) { pthread_setname_np("QEMU"); }
3882 int main(void)
3883 {
3884     pthread_t thread;
3885     pthread_create(&thread, 0, f, 0);
3886     return 0;
3887 }
3888 EOF
3889 if compile_prog "" "$pthread_lib" ; then
3890   pthread_setname_np_wo_tid=yes
3891 fi
3892
3893 ##########################################
3894 # rbd probe
3895 if test "$rbd" != "no" ; then
3896   cat > $TMPC <<EOF
3897 #include <stdio.h>
3898 #include <rbd/librbd.h>
3899 int main(void) {
3900     rados_t cluster;
3901     rados_create(&cluster, NULL);
3902     return 0;
3903 }
3904 EOF
3905   rbd_libs="-lrbd -lrados"
3906   if compile_prog "" "$rbd_libs" ; then
3907     rbd=yes
3908   else
3909     if test "$rbd" = "yes" ; then
3910       feature_not_found "rados block device" "Install librbd/ceph devel"
3911     fi
3912     rbd=no
3913   fi
3914 fi
3915
3916 ##########################################
3917 # libssh2 probe
3918 min_libssh2_version=1.2.8
3919 if test "$libssh2" != "no" ; then
3920   if $pkg_config --atleast-version=$min_libssh2_version libssh2; then
3921     libssh2_cflags=$($pkg_config libssh2 --cflags)
3922     libssh2_libs=$($pkg_config libssh2 --libs)
3923     libssh2=yes
3924   else
3925     if test "$libssh2" = "yes" ; then
3926       error_exit "libssh2 >= $min_libssh2_version required for --enable-libssh2"
3927     fi
3928     libssh2=no
3929   fi
3930 fi
3931
3932 ##########################################
3933 # libssh2_sftp_fsync probe
3934
3935 if test "$libssh2" = "yes"; then
3936   cat > $TMPC <<EOF
3937 #include <stdio.h>
3938 #include <libssh2.h>
3939 #include <libssh2_sftp.h>
3940 int main(void) {
3941     LIBSSH2_SESSION *session;
3942     LIBSSH2_SFTP *sftp;
3943     LIBSSH2_SFTP_HANDLE *sftp_handle;
3944     session = libssh2_session_init ();
3945     sftp = libssh2_sftp_init (session);
3946     sftp_handle = libssh2_sftp_open (sftp, "/", 0, 0);
3947     libssh2_sftp_fsync (sftp_handle);
3948     return 0;
3949 }
3950 EOF
3951   # libssh2_cflags/libssh2_libs defined in previous test.
3952   if compile_prog "$libssh2_cflags" "$libssh2_libs" ; then
3953     QEMU_CFLAGS="-DHAS_LIBSSH2_SFTP_FSYNC $QEMU_CFLAGS"
3954   fi
3955 fi
3956
3957 ##########################################
3958 # linux-aio probe
3959
3960 if test "$linux_aio" != "no" ; then
3961   cat > $TMPC <<EOF
3962 #include <libaio.h>
3963 #include <sys/eventfd.h>
3964 #include <stddef.h>
3965 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
3966 EOF
3967   if compile_prog "" "-laio" ; then
3968     linux_aio=yes
3969   else
3970     if test "$linux_aio" = "yes" ; then
3971       feature_not_found "linux AIO" "Install libaio devel"
3972     fi
3973     linux_aio=no
3974   fi
3975 fi
3976
3977 ##########################################
3978 # TPM emulation is only on POSIX
3979
3980 if test "$tpm" = ""; then
3981   if test "$mingw32" = "yes"; then
3982     tpm=no
3983   else
3984     tpm=yes
3985   fi
3986 elif test "$tpm" = "yes"; then
3987   if test "$mingw32" = "yes" ; then
3988     error_exit "TPM emulation only available on POSIX systems"
3989   fi
3990 fi
3991
3992 ##########################################
3993 # attr probe
3994
3995 if test "$attr" != "no" ; then
3996   cat > $TMPC <<EOF
3997 #include <stdio.h>
3998 #include <sys/types.h>
3999 #ifdef CONFIG_LIBATTR
4000 #include <attr/xattr.h>
4001 #else
4002 #include <sys/xattr.h>
4003 #endif
4004 int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }
4005 EOF
4006   if compile_prog "" "" ; then
4007     attr=yes
4008   # Older distros have <attr/xattr.h>, and need -lattr:
4009   elif compile_prog "-DCONFIG_LIBATTR" "-lattr" ; then
4010     attr=yes
4011     LIBS="-lattr $LIBS"
4012     libattr=yes
4013   else
4014     if test "$attr" = "yes" ; then
4015       feature_not_found "ATTR" "Install libc6 or libattr devel"
4016     fi
4017     attr=no
4018   fi
4019 fi
4020
4021 ##########################################
4022 # iovec probe
4023 cat > $TMPC <<EOF
4024 #include <sys/types.h>
4025 #include <sys/uio.h>
4026 #include <unistd.h>
4027 int main(void) { return sizeof(struct iovec); }
4028 EOF
4029 iovec=no
4030 if compile_prog "" "" ; then
4031   iovec=yes
4032 fi
4033
4034 ##########################################
4035 # preadv probe
4036 cat > $TMPC <<EOF
4037 #include <sys/types.h>
4038 #include <sys/uio.h>
4039 #include <unistd.h>
4040 int main(void) { return preadv(0, 0, 0, 0); }
4041 EOF
4042 preadv=no
4043 if compile_prog "" "" ; then
4044   preadv=yes
4045 fi
4046
4047 ##########################################
4048 # fdt probe
4049 # fdt support is mandatory for at least some target architectures,
4050 # so insist on it if we're building those system emulators.
4051 fdt_required=no
4052 for target in $target_list; do
4053   case $target in
4054     aarch64*-softmmu|arm*-softmmu|ppc*-softmmu|microblaze*-softmmu|mips64el-softmmu|riscv*-softmmu)
4055       fdt_required=yes
4056     ;;
4057   esac
4058 done
4059
4060 if test "$fdt_required" = "yes"; then
4061   if test "$fdt" = "no"; then
4062     error_exit "fdt disabled but some requested targets require it." \
4063       "You can turn off fdt only if you also disable all the system emulation" \
4064       "targets which need it (by specifying a cut down --target-list)."
4065   fi
4066   fdt=yes
4067 fi
4068
4069 if test "$fdt" != "no" ; then
4070   fdt_libs="-lfdt"
4071   # explicitly check for libfdt_env.h as it is missing in some stable installs
4072   # and test for required functions to make sure we are on a version >= 1.4.2
4073   cat > $TMPC << EOF
4074 #include <libfdt.h>
4075 #include <libfdt_env.h>
4076 int main(void) { fdt_check_full(NULL, 0); return 0; }
4077 EOF
4078   if compile_prog "" "$fdt_libs" ; then
4079     # system DTC is good - use it
4080     fdt=system
4081   else
4082       # have GIT checkout, so activate dtc submodule
4083       if test -e "${source_path}/.git" ; then
4084           git_submodules="${git_submodules} dtc"
4085       fi
4086       if test -d "${source_path}/dtc/libfdt" || test -e "${source_path}/.git" ; then
4087           fdt=git
4088           mkdir -p dtc
4089           if [ "$pwd_is_source_path" != "y" ] ; then
4090               symlink "$source_path/dtc/Makefile" "dtc/Makefile"
4091               symlink "$source_path/dtc/scripts" "dtc/scripts"
4092           fi
4093           fdt_cflags="-I\$(SRC_PATH)/dtc/libfdt"
4094           fdt_ldflags="-L\$(BUILD_DIR)/dtc/libfdt"
4095           fdt_libs="$fdt_libs"
4096       elif test "$fdt" = "yes" ; then
4097           # Not a git build & no libfdt found, prompt for system install
4098           error_exit "DTC (libfdt) version >= 1.4.2 not present." \
4099                      "Please install the DTC (libfdt) devel package"
4100       else
4101           # don't have and don't want
4102           fdt_libs=
4103           fdt=no
4104       fi
4105   fi
4106 fi
4107
4108 libs_softmmu="$libs_softmmu $fdt_libs"
4109
4110 ##########################################
4111 # opengl probe (for sdl2, gtk, milkymist-tmu2)
4112
4113 gbm="no"
4114 if $pkg_config gbm; then
4115     gbm_cflags="$($pkg_config --cflags gbm)"
4116     gbm_libs="$($pkg_config --libs gbm)"
4117     gbm="yes"
4118 fi
4119
4120 if test "$opengl" != "no" ; then
4121   opengl_pkgs="epoxy gbm"
4122   if $pkg_config $opengl_pkgs; then
4123     opengl_cflags="$($pkg_config --cflags $opengl_pkgs)"
4124     opengl_libs="$($pkg_config --libs $opengl_pkgs)"
4125     opengl=yes
4126     if test "$gtk" = "yes" && $pkg_config --exists "$gtkpackage >= 3.16"; then
4127         gtk_gl="yes"
4128     fi
4129     QEMU_CFLAGS="$QEMU_CFLAGS $opengl_cflags"
4130   else
4131     if test "$opengl" = "yes" ; then
4132       feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
4133     fi
4134     opengl_cflags=""
4135     opengl_libs=""
4136     opengl=no
4137   fi
4138 fi
4139
4140 if test "$opengl" = "yes"; then
4141   cat > $TMPC << EOF
4142 #include <epoxy/egl.h>
4143 #ifndef EGL_MESA_image_dma_buf_export
4144 # error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
4145 #endif
4146 int main(void) { return 0; }
4147 EOF
4148   if compile_prog "" "" ; then
4149     opengl_dmabuf=yes
4150   fi
4151 fi
4152
4153 if test "$opengl" = "yes" && test "$have_x11" = "yes"; then
4154   for target in $target_list; do
4155     case $target in
4156       lm32-softmmu) # milkymist-tmu2 requires X11 and OpenGL
4157         need_x11=yes
4158       ;;
4159     esac
4160   done
4161 fi
4162
4163 ##########################################
4164 # libxml2 probe
4165 if test "$libxml2" != "no" ; then
4166     if $pkg_config --exists libxml-2.0; then
4167         libxml2="yes"
4168         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
4169         libxml2_libs=$($pkg_config --libs libxml-2.0)
4170     else
4171         if test "$libxml2" = "yes"; then
4172             feature_not_found "libxml2" "Install libxml2 devel"
4173         fi
4174         libxml2="no"
4175     fi
4176 fi
4177
4178 ##########################################
4179 # glusterfs probe
4180 if test "$glusterfs" != "no" ; then
4181   if $pkg_config --atleast-version=3 glusterfs-api; then
4182     glusterfs="yes"
4183     glusterfs_cflags=$($pkg_config --cflags glusterfs-api)
4184     glusterfs_libs=$($pkg_config --libs glusterfs-api)
4185     if $pkg_config --atleast-version=4 glusterfs-api; then
4186       glusterfs_xlator_opt="yes"
4187     fi
4188     if $pkg_config --atleast-version=5 glusterfs-api; then
4189       glusterfs_discard="yes"
4190     fi
4191     if $pkg_config --atleast-version=6 glusterfs-api; then
4192       glusterfs_fallocate="yes"
4193       glusterfs_zerofill="yes"
4194     fi
4195     cat > $TMPC << EOF
4196 #include <glusterfs/api/glfs.h>
4197
4198 int
4199 main(void)
4200 {
4201         /* new glfs_ftruncate() passes two additional args */
4202         return glfs_ftruncate(NULL, 0, NULL, NULL);
4203 }
4204 EOF
4205     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
4206       glusterfs_ftruncate_has_stat="yes"
4207     fi
4208     cat > $TMPC << EOF
4209 #include <glusterfs/api/glfs.h>
4210
4211 /* new glfs_io_cbk() passes two additional glfs_stat structs */
4212 static void
4213 glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
4214 {}
4215
4216 int
4217 main(void)
4218 {
4219         glfs_io_cbk iocb = &glusterfs_iocb;
4220         iocb(NULL, 0 , NULL, NULL, NULL);
4221         return 0;
4222 }
4223 EOF
4224     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
4225       glusterfs_iocb_has_stat="yes"
4226     fi
4227   else
4228     if test "$glusterfs" = "yes" ; then
4229       feature_not_found "GlusterFS backend support" \
4230           "Install glusterfs-api devel >= 3"
4231     fi
4232     glusterfs="no"
4233   fi
4234 fi
4235
4236 # Check for inotify functions when we are building linux-user
4237 # emulator.  This is done because older glibc versions don't
4238 # have syscall stubs for these implemented.  In that case we
4239 # don't provide them even if kernel supports them.
4240 #
4241 inotify=no
4242 cat > $TMPC << EOF
4243 #include <sys/inotify.h>
4244
4245 int
4246 main(void)
4247 {
4248         /* try to start inotify */
4249         return inotify_init();
4250 }
4251 EOF
4252 if compile_prog "" "" ; then
4253   inotify=yes
4254 fi
4255
4256 inotify1=no
4257 cat > $TMPC << EOF
4258 #include <sys/inotify.h>
4259
4260 int
4261 main(void)
4262 {
4263     /* try to start inotify */
4264     return inotify_init1(0);
4265 }
4266 EOF
4267 if compile_prog "" "" ; then
4268   inotify1=yes
4269 fi
4270
4271 # check if pipe2 is there
4272 pipe2=no
4273 cat > $TMPC << EOF
4274 #include <unistd.h>
4275 #include <fcntl.h>
4276
4277 int main(void)
4278 {
4279     int pipefd[2];
4280     return pipe2(pipefd, O_CLOEXEC);
4281 }
4282 EOF
4283 if compile_prog "" "" ; then
4284   pipe2=yes
4285 fi
4286
4287 # check if accept4 is there
4288 accept4=no
4289 cat > $TMPC << EOF
4290 #include <sys/socket.h>
4291 #include <stddef.h>
4292
4293 int main(void)
4294 {
4295     accept4(0, NULL, NULL, SOCK_CLOEXEC);
4296     return 0;
4297 }
4298 EOF
4299 if compile_prog "" "" ; then
4300   accept4=yes
4301 fi
4302
4303 # check if tee/splice is there. vmsplice was added same time.
4304 splice=no
4305 cat > $TMPC << EOF
4306 #include <unistd.h>
4307 #include <fcntl.h>
4308 #include <limits.h>
4309
4310 int main(void)
4311 {
4312     int len, fd = 0;
4313     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
4314     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
4315     return 0;
4316 }
4317 EOF
4318 if compile_prog "" "" ; then
4319   splice=yes
4320 fi
4321
4322 ##########################################
4323 # libnuma probe
4324
4325 if test "$numa" != "no" ; then
4326   cat > $TMPC << EOF
4327 #include <numa.h>
4328 int main(void) { return numa_available(); }
4329 EOF
4330
4331   if compile_prog "" "-lnuma" ; then
4332     numa=yes
4333     libs_softmmu="-lnuma $libs_softmmu"
4334   else
4335     if test "$numa" = "yes" ; then
4336       feature_not_found "numa" "install numactl devel"
4337     fi
4338     numa=no
4339   fi
4340 fi
4341
4342 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
4343     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
4344     exit 1
4345 fi
4346
4347 # Even if malloc_trim() is available, these non-libc memory allocators
4348 # do not support it.
4349 if test "$tcmalloc" = "yes" || test "$jemalloc" = "yes" ; then
4350     if test "$malloc_trim" = "yes" ; then
4351         echo "Disabling malloc_trim with non-libc memory allocator"
4352     fi
4353     malloc_trim="no"
4354 fi
4355
4356 #######################################
4357 # malloc_trim
4358
4359 if test "$malloc_trim" != "no" ; then
4360     cat > $TMPC << EOF
4361 #include <malloc.h>
4362 int main(void) { malloc_trim(0); return 0; }
4363 EOF
4364     if compile_prog "" "" ; then
4365         malloc_trim="yes"
4366     else
4367         malloc_trim="no"
4368     fi
4369 fi
4370
4371 ##########################################
4372 # tcmalloc probe
4373
4374 if test "$tcmalloc" = "yes" ; then
4375   cat > $TMPC << EOF
4376 #include <stdlib.h>
4377 int main(void) { malloc(1); return 0; }
4378 EOF
4379
4380   if compile_prog "" "-ltcmalloc" ; then
4381     LIBS="-ltcmalloc $LIBS"
4382   else
4383     feature_not_found "tcmalloc" "install gperftools devel"
4384   fi
4385 fi
4386
4387 ##########################################
4388 # jemalloc probe
4389
4390 if test "$jemalloc" = "yes" ; then
4391   cat > $TMPC << EOF
4392 #include <stdlib.h>
4393 int main(void) { malloc(1); return 0; }
4394 EOF
4395
4396   if compile_prog "" "-ljemalloc" ; then
4397     LIBS="-ljemalloc $LIBS"
4398   else
4399     feature_not_found "jemalloc" "install jemalloc devel"
4400   fi
4401 fi
4402
4403 ##########################################
4404 # signalfd probe
4405 signalfd="no"
4406 cat > $TMPC << EOF
4407 #include <unistd.h>
4408 #include <sys/syscall.h>
4409 #include <signal.h>
4410 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
4411 EOF
4412
4413 if compile_prog "" "" ; then
4414   signalfd=yes
4415 fi
4416
4417 # check if optreset global is declared by <getopt.h>
4418 optreset="no"
4419 cat > $TMPC << EOF
4420 #include <getopt.h>
4421 int main(void) { return optreset; }
4422 EOF
4423
4424 if compile_prog "" "" ; then
4425   optreset=yes
4426 fi
4427
4428 # check if eventfd is supported
4429 eventfd=no
4430 cat > $TMPC << EOF
4431 #include <sys/eventfd.h>
4432
4433 int main(void)
4434 {
4435     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
4436 }
4437 EOF
4438 if compile_prog "" "" ; then
4439   eventfd=yes
4440 fi
4441
4442 # check if memfd is supported
4443 memfd=no
4444 cat > $TMPC << EOF
4445 #include <sys/mman.h>
4446
4447 int main(void)
4448 {
4449     return memfd_create("foo", MFD_ALLOW_SEALING);
4450 }
4451 EOF
4452 if compile_prog "" "" ; then
4453   memfd=yes
4454 fi
4455
4456 # check for usbfs
4457 have_usbfs=no
4458 if test "$linux_user" = "yes"; then
4459   cat > $TMPC << EOF
4460 #include <linux/usbdevice_fs.h>
4461
4462 #ifndef USBDEVFS_GET_CAPABILITIES
4463 #error "USBDEVFS_GET_CAPABILITIES undefined"
4464 #endif
4465
4466 #ifndef USBDEVFS_DISCONNECT_CLAIM
4467 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
4468 #endif
4469
4470 int main(void)
4471 {
4472     return 0;
4473 }
4474 EOF
4475   if compile_prog "" ""; then
4476     have_usbfs=yes
4477   fi
4478 fi
4479
4480 # check for fallocate
4481 fallocate=no
4482 cat > $TMPC << EOF
4483 #include <fcntl.h>
4484
4485 int main(void)
4486 {
4487     fallocate(0, 0, 0, 0);
4488     return 0;
4489 }
4490 EOF
4491 if compile_prog "" "" ; then
4492   fallocate=yes
4493 fi
4494
4495 # check for fallocate hole punching
4496 fallocate_punch_hole=no
4497 cat > $TMPC << EOF
4498 #include <fcntl.h>
4499 #include <linux/falloc.h>
4500
4501 int main(void)
4502 {
4503     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
4504     return 0;
4505 }
4506 EOF
4507 if compile_prog "" "" ; then
4508   fallocate_punch_hole=yes
4509 fi
4510
4511 # check that fallocate supports range zeroing inside the file
4512 fallocate_zero_range=no
4513 cat > $TMPC << EOF
4514 #include <fcntl.h>
4515 #include <linux/falloc.h>
4516
4517 int main(void)
4518 {
4519     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
4520     return 0;
4521 }
4522 EOF
4523 if compile_prog "" "" ; then
4524   fallocate_zero_range=yes
4525 fi
4526
4527 # check for posix_fallocate
4528 posix_fallocate=no
4529 cat > $TMPC << EOF
4530 #include <fcntl.h>
4531
4532 int main(void)
4533 {
4534     posix_fallocate(0, 0, 0);
4535     return 0;
4536 }
4537 EOF
4538 if compile_prog "" "" ; then
4539     posix_fallocate=yes
4540 fi
4541
4542 # check for sync_file_range
4543 sync_file_range=no
4544 cat > $TMPC << EOF
4545 #include <fcntl.h>
4546
4547 int main(void)
4548 {
4549     sync_file_range(0, 0, 0, 0);
4550     return 0;
4551 }
4552 EOF
4553 if compile_prog "" "" ; then
4554   sync_file_range=yes
4555 fi
4556
4557 # check for linux/fiemap.h and FS_IOC_FIEMAP
4558 fiemap=no
4559 cat > $TMPC << EOF
4560 #include <sys/ioctl.h>
4561 #include <linux/fs.h>
4562 #include <linux/fiemap.h>
4563
4564 int main(void)
4565 {
4566     ioctl(0, FS_IOC_FIEMAP, 0);
4567     return 0;
4568 }
4569 EOF
4570 if compile_prog "" "" ; then
4571   fiemap=yes
4572 fi
4573
4574 # check for dup3
4575 dup3=no
4576 cat > $TMPC << EOF
4577 #include <unistd.h>
4578
4579 int main(void)
4580 {
4581     dup3(0, 0, 0);
4582     return 0;
4583 }
4584 EOF
4585 if compile_prog "" "" ; then
4586   dup3=yes
4587 fi
4588
4589 # check for ppoll support
4590 ppoll=no
4591 cat > $TMPC << EOF
4592 #include <poll.h>
4593
4594 int main(void)
4595 {
4596     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
4597     ppoll(&pfd, 1, 0, 0);
4598     return 0;
4599 }
4600 EOF
4601 if compile_prog "" "" ; then
4602   ppoll=yes
4603 fi
4604
4605 # check for prctl(PR_SET_TIMERSLACK , ... ) support
4606 prctl_pr_set_timerslack=no
4607 cat > $TMPC << EOF
4608 #include <sys/prctl.h>
4609
4610 int main(void)
4611 {
4612     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
4613     return 0;
4614 }
4615 EOF
4616 if compile_prog "" "" ; then
4617   prctl_pr_set_timerslack=yes
4618 fi
4619
4620 # check for epoll support
4621 epoll=no
4622 cat > $TMPC << EOF
4623 #include <sys/epoll.h>
4624
4625 int main(void)
4626 {
4627     epoll_create(0);
4628     return 0;
4629 }
4630 EOF
4631 if compile_prog "" "" ; then
4632   epoll=yes
4633 fi
4634
4635 # epoll_create1 is a later addition
4636 # so we must check separately for its presence
4637 epoll_create1=no
4638 cat > $TMPC << EOF
4639 #include <sys/epoll.h>
4640
4641 int main(void)
4642 {
4643     /* Note that we use epoll_create1 as a value, not as
4644      * a function being called. This is necessary so that on
4645      * old SPARC glibc versions where the function was present in
4646      * the library but not declared in the header file we will
4647      * fail the configure check. (Otherwise we will get a compiler
4648      * warning but not an error, and will proceed to fail the
4649      * qemu compile where we compile with -Werror.)
4650      */
4651     return (int)(uintptr_t)&epoll_create1;
4652 }
4653 EOF
4654 if compile_prog "" "" ; then
4655   epoll_create1=yes
4656 fi
4657
4658 # check for sendfile support
4659 sendfile=no
4660 cat > $TMPC << EOF
4661 #include <sys/sendfile.h>
4662
4663 int main(void)
4664 {
4665     return sendfile(0, 0, 0, 0);
4666 }
4667 EOF
4668 if compile_prog "" "" ; then
4669   sendfile=yes
4670 fi
4671
4672 # check for timerfd support (glibc 2.8 and newer)
4673 timerfd=no
4674 cat > $TMPC << EOF
4675 #include <sys/timerfd.h>
4676
4677 int main(void)
4678 {
4679     return(timerfd_create(CLOCK_REALTIME, 0));
4680 }
4681 EOF
4682 if compile_prog "" "" ; then
4683   timerfd=yes
4684 fi
4685
4686 # check for setns and unshare support
4687 setns=no
4688 cat > $TMPC << EOF
4689 #include <sched.h>
4690
4691 int main(void)
4692 {
4693     int ret;
4694     ret = setns(0, 0);
4695     ret = unshare(0);
4696     return ret;
4697 }
4698 EOF
4699 if compile_prog "" "" ; then
4700   setns=yes
4701 fi
4702
4703 # clock_adjtime probe
4704 clock_adjtime=no
4705 cat > $TMPC <<EOF
4706 #include <time.h>
4707
4708 int main(void)
4709 {
4710     return clock_adjtime(0, 0);
4711 }
4712 EOF
4713 clock_adjtime=no
4714 if compile_prog "" "" ; then
4715   clock_adjtime=yes
4716 fi
4717
4718 # syncfs probe
4719 syncfs=no
4720 cat > $TMPC <<EOF
4721 #include <unistd.h>
4722
4723 int main(void)
4724 {
4725     return syncfs(0);
4726 }
4727 EOF
4728 syncfs=no
4729 if compile_prog "" "" ; then
4730   syncfs=yes
4731 fi
4732
4733 # Check we have a new enough version of sphinx-build
4734 has_sphinx_build() {
4735     # This is a bit awkward but works: create a trivial document and
4736     # try to run it with our configuration file (which enforces a
4737     # version requirement). This will fail if either
4738     # sphinx-build doesn't exist at all or if it is too old.
4739     mkdir -p "$TMPDIR1/sphinx"
4740     touch "$TMPDIR1/sphinx/index.rst"
4741     sphinx-build -c "$source_path/docs" -b html "$TMPDIR1/sphinx" "$TMPDIR1/sphinx/out" >/dev/null 2>&1
4742 }
4743
4744 # Check if tools are available to build documentation.
4745 if test "$docs" != "no" ; then
4746   if has makeinfo && has pod2man && has_sphinx_build; then
4747     docs=yes
4748   else
4749     if test "$docs" = "yes" ; then
4750       feature_not_found "docs" "Install texinfo, Perl/perl-podlators and python-sphinx"
4751     fi
4752     docs=no
4753   fi
4754 fi
4755
4756 # Search for bswap_32 function
4757 byteswap_h=no
4758 cat > $TMPC << EOF
4759 #include <byteswap.h>
4760 int main(void) { return bswap_32(0); }
4761 EOF
4762 if compile_prog "" "" ; then
4763   byteswap_h=yes
4764 fi
4765
4766 # Search for bswap32 function
4767 bswap_h=no
4768 cat > $TMPC << EOF
4769 #include <sys/endian.h>
4770 #include <sys/types.h>
4771 #include <machine/bswap.h>
4772 int main(void) { return bswap32(0); }
4773 EOF
4774 if compile_prog "" "" ; then
4775   bswap_h=yes
4776 fi
4777
4778 ##########################################
4779 # Do we have libiscsi >= 1.9.0
4780 if test "$libiscsi" != "no" ; then
4781   if $pkg_config --atleast-version=1.9.0 libiscsi; then
4782     libiscsi="yes"
4783     libiscsi_cflags=$($pkg_config --cflags libiscsi)
4784     libiscsi_libs=$($pkg_config --libs libiscsi)
4785   else
4786     if test "$libiscsi" = "yes" ; then
4787       feature_not_found "libiscsi" "Install libiscsi >= 1.9.0"
4788     fi
4789     libiscsi="no"
4790   fi
4791 fi
4792
4793 ##########################################
4794 # Do we need libm
4795 cat > $TMPC << EOF
4796 #include <math.h>
4797 int main(int argc, char **argv) { return isnan(sin((double)argc)); }
4798 EOF
4799 if compile_prog "" "" ; then
4800   :
4801 elif compile_prog "" "-lm" ; then
4802   LIBS="-lm $LIBS"
4803   libs_qga="-lm $libs_qga"
4804 else
4805   error_exit "libm check failed"
4806 fi
4807
4808 ##########################################
4809 # Do we need librt
4810 # uClibc provides 2 versions of clock_gettime(), one with realtime
4811 # support and one without. This means that the clock_gettime() don't
4812 # need -lrt. We still need it for timer_create() so we check for this
4813 # function in addition.
4814 cat > $TMPC <<EOF
4815 #include <signal.h>
4816 #include <time.h>
4817 int main(void) {
4818   timer_create(CLOCK_REALTIME, NULL, NULL);
4819   return clock_gettime(CLOCK_REALTIME, NULL);
4820 }
4821 EOF
4822
4823 if compile_prog "" "" ; then
4824   :
4825 # we need pthread for static linking. use previous pthread test result
4826 elif compile_prog "" "$pthread_lib -lrt" ; then
4827   LIBS="$LIBS -lrt"
4828   libs_qga="$libs_qga -lrt"
4829 fi
4830
4831 # Check whether we need to link libutil for openpty()
4832 cat > $TMPC << EOF
4833 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
4834 int main(void) { return openpty(0, 0, 0, 0, 0); }
4835 EOF
4836
4837 if ! compile_prog "" "" ; then
4838   if compile_prog "" "-lutil" ; then
4839     libs_softmmu="-lutil $libs_softmmu"
4840     libs_tools="-lutil $libs_tools"
4841   fi
4842 fi
4843
4844 ##########################################
4845 # spice probe
4846 if test "$spice" != "no" ; then
4847   cat > $TMPC << EOF
4848 #include <spice.h>
4849 int main(void) { spice_server_new(); return 0; }
4850 EOF
4851   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
4852   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
4853   if $pkg_config --atleast-version=0.12.5 spice-server && \
4854      $pkg_config --atleast-version=0.12.3 spice-protocol && \
4855      compile_prog "$spice_cflags" "$spice_libs" ; then
4856     spice="yes"
4857     libs_softmmu="$libs_softmmu $spice_libs"
4858     QEMU_CFLAGS="$QEMU_CFLAGS $spice_cflags"
4859     spice_protocol_version=$($pkg_config --modversion spice-protocol)
4860     spice_server_version=$($pkg_config --modversion spice-server)
4861   else
4862     if test "$spice" = "yes" ; then
4863       feature_not_found "spice" \
4864           "Install spice-server(>=0.12.5) and spice-protocol(>=0.12.3) devel"
4865     fi
4866     spice="no"
4867   fi
4868 fi
4869
4870 # check for smartcard support
4871 if test "$smartcard" != "no"; then
4872     if $pkg_config --atleast-version=2.5.1 libcacard; then
4873         libcacard_cflags=$($pkg_config --cflags libcacard)
4874         libcacard_libs=$($pkg_config --libs libcacard)
4875         smartcard="yes"
4876     else
4877         if test "$smartcard" = "yes"; then
4878             feature_not_found "smartcard" "Install libcacard devel"
4879         fi
4880         smartcard="no"
4881     fi
4882 fi
4883
4884 # check for libusb
4885 if test "$libusb" != "no" ; then
4886     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
4887         libusb="yes"
4888         libusb_cflags=$($pkg_config --cflags libusb-1.0)
4889         libusb_libs=$($pkg_config --libs libusb-1.0)
4890     else
4891         if test "$libusb" = "yes"; then
4892             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
4893         fi
4894         libusb="no"
4895     fi
4896 fi
4897
4898 # check for usbredirparser for usb network redirection support
4899 if test "$usb_redir" != "no" ; then
4900     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
4901         usb_redir="yes"
4902         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
4903         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
4904     else
4905         if test "$usb_redir" = "yes"; then
4906             feature_not_found "usb-redir" "Install usbredir devel"
4907         fi
4908         usb_redir="no"
4909     fi
4910 fi
4911
4912 ##########################################
4913 # check if we have VSS SDK headers for win
4914
4915 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4916         test "$vss_win32_sdk" != "no" ; then
4917   case "$vss_win32_sdk" in
4918     "")   vss_win32_include="-isystem $source_path" ;;
4919     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
4920           # handle path with spaces. So we symlink the headers into ".sdk/vss".
4921           vss_win32_include="-isystem $source_path/.sdk/vss"
4922           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
4923           ;;
4924     *)    vss_win32_include="-isystem $vss_win32_sdk"
4925   esac
4926   cat > $TMPC << EOF
4927 #define __MIDL_user_allocate_free_DEFINED__
4928 #include <inc/win2003/vss.h>
4929 int main(void) { return VSS_CTX_BACKUP; }
4930 EOF
4931   if compile_prog "$vss_win32_include" "" ; then
4932     guest_agent_with_vss="yes"
4933     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
4934     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
4935     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
4936   else
4937     if test "$vss_win32_sdk" != "" ; then
4938       echo "ERROR: Please download and install Microsoft VSS SDK:"
4939       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
4940       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
4941       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
4942       echo "ERROR: The headers are extracted in the directory \`inc'."
4943       feature_not_found "VSS support"
4944     fi
4945     guest_agent_with_vss="no"
4946   fi
4947 fi
4948
4949 ##########################################
4950 # lookup Windows platform SDK (if not specified)
4951 # The SDK is needed only to build .tlb (type library) file of guest agent
4952 # VSS provider from the source. It is usually unnecessary because the
4953 # pre-compiled .tlb file is included.
4954
4955 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4956         test "$guest_agent_with_vss" = "yes" ; then
4957   if test -z "$win_sdk"; then
4958     programfiles="$PROGRAMFILES"
4959     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
4960     if test -n "$programfiles"; then
4961       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
4962     else
4963       feature_not_found "Windows SDK"
4964     fi
4965   elif test "$win_sdk" = "no"; then
4966     win_sdk=""
4967   fi
4968 fi
4969
4970 ##########################################
4971 # check if mingw environment provides a recent ntddscsi.h
4972 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
4973   cat > $TMPC << EOF
4974 #include <windows.h>
4975 #include <ntddscsi.h>
4976 int main(void) {
4977 #if !defined(IOCTL_SCSI_GET_ADDRESS)
4978 #error Missing required ioctl definitions
4979 #endif
4980   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
4981   return addr.Lun;
4982 }
4983 EOF
4984   if compile_prog "" "" ; then
4985     guest_agent_ntddscsi=yes
4986     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
4987   fi
4988 fi
4989
4990 ##########################################
4991 # virgl renderer probe
4992
4993 if test "$virglrenderer" != "no" ; then
4994   cat > $TMPC << EOF
4995 #include <virglrenderer.h>
4996 int main(void) { virgl_renderer_poll(); return 0; }
4997 EOF
4998   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
4999   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
5000   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
5001   if $pkg_config virglrenderer >/dev/null 2>&1 && \
5002      compile_prog "$virgl_cflags" "$virgl_libs" ; then
5003     virglrenderer="yes"
5004   else
5005     if test "$virglrenderer" = "yes" ; then
5006       feature_not_found "virglrenderer"
5007     fi
5008     virglrenderer="no"
5009   fi
5010 fi
5011
5012 ##########################################
5013 # capstone
5014
5015 case "$capstone" in
5016   "" | yes)
5017     if $pkg_config capstone; then
5018       capstone=system
5019     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
5020       capstone=git
5021     elif test -e "${source_path}/capstone/Makefile" ; then
5022       capstone=internal
5023     elif test -z "$capstone" ; then
5024       capstone=no
5025     else
5026       feature_not_found "capstone" "Install capstone devel or git submodule"
5027     fi
5028     ;;
5029
5030   system)
5031     if ! $pkg_config capstone; then
5032       feature_not_found "capstone" "Install capstone devel"
5033     fi
5034     ;;
5035 esac
5036
5037 case "$capstone" in
5038   git | internal)
5039     if test "$capstone" = git; then
5040       git_submodules="${git_submodules} capstone"
5041     fi
5042     mkdir -p capstone
5043     QEMU_CFLAGS="$QEMU_CFLAGS -I\$(SRC_PATH)/capstone/include"
5044     if test "$mingw32" = "yes"; then
5045       LIBCAPSTONE=capstone.lib
5046     else
5047       LIBCAPSTONE=libcapstone.a
5048     fi
5049     LIBS="-L\$(BUILD_DIR)/capstone -lcapstone $LIBS"
5050     ;;
5051
5052   system)
5053     QEMU_CFLAGS="$QEMU_CFLAGS $($pkg_config --cflags capstone)"
5054     LIBS="$($pkg_config --libs capstone) $LIBS"
5055     ;;
5056
5057   no)
5058     ;;
5059   *)
5060     error_exit "Unknown state for capstone: $capstone"
5061     ;;
5062 esac
5063
5064 ##########################################
5065 # check if we have fdatasync
5066
5067 fdatasync=no
5068 cat > $TMPC << EOF
5069 #include <unistd.h>
5070 int main(void) {
5071 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
5072 return fdatasync(0);
5073 #else
5074 #error Not supported
5075 #endif
5076 }
5077 EOF
5078 if compile_prog "" "" ; then
5079     fdatasync=yes
5080 fi
5081
5082 ##########################################
5083 # check if we have madvise
5084
5085 madvise=no
5086 cat > $TMPC << EOF
5087 #include <sys/types.h>
5088 #include <sys/mman.h>
5089 #include <stddef.h>
5090 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
5091 EOF
5092 if compile_prog "" "" ; then
5093     madvise=yes
5094 fi
5095
5096 ##########################################
5097 # check if we have posix_madvise
5098
5099 posix_madvise=no
5100 cat > $TMPC << EOF
5101 #include <sys/mman.h>
5102 #include <stddef.h>
5103 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
5104 EOF
5105 if compile_prog "" "" ; then
5106     posix_madvise=yes
5107 fi
5108
5109 ##########################################
5110 # check if we have posix_memalign()
5111
5112 posix_memalign=no
5113 cat > $TMPC << EOF
5114 #include <stdlib.h>
5115 int main(void) {
5116     void *p;
5117     return posix_memalign(&p, 8, 8);
5118 }
5119 EOF
5120 if compile_prog "" "" ; then
5121     posix_memalign=yes
5122 fi
5123
5124 ##########################################
5125 # check if we have posix_syslog
5126
5127 posix_syslog=no
5128 cat > $TMPC << EOF
5129 #include <syslog.h>
5130 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
5131 EOF
5132 if compile_prog "" "" ; then
5133     posix_syslog=yes
5134 fi
5135
5136 ##########################################
5137 # check if we have sem_timedwait
5138
5139 sem_timedwait=no
5140 cat > $TMPC << EOF
5141 #include <semaphore.h>
5142 int main(void) { return sem_timedwait(0, 0); }
5143 EOF
5144 if compile_prog "" "" ; then
5145     sem_timedwait=yes
5146 fi
5147
5148 ##########################################
5149 # check if we have strchrnul
5150
5151 strchrnul=no
5152 cat > $TMPC << EOF
5153 #include <string.h>
5154 int main(void);
5155 // Use a haystack that the compiler shouldn't be able to constant fold
5156 char *haystack = (char*)&main;
5157 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
5158 EOF
5159 if compile_prog "" "" ; then
5160     strchrnul=yes
5161 fi
5162
5163 ##########################################
5164 # check if trace backend exists
5165
5166 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
5167 if test "$?" -ne 0 ; then
5168   error_exit "invalid trace backends" \
5169       "Please choose supported trace backends."
5170 fi
5171
5172 ##########################################
5173 # For 'ust' backend, test if ust headers are present
5174 if have_backend "ust"; then
5175   cat > $TMPC << EOF
5176 #include <lttng/tracepoint.h>
5177 int main(void) { return 0; }
5178 EOF
5179   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
5180     if $pkg_config lttng-ust --exists; then
5181       lttng_ust_libs=$($pkg_config --libs lttng-ust)
5182     else
5183       lttng_ust_libs="-llttng-ust -ldl"
5184     fi
5185     if $pkg_config liburcu-bp --exists; then
5186       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
5187     else
5188       urcu_bp_libs="-lurcu-bp"
5189     fi
5190
5191     LIBS="$lttng_ust_libs $urcu_bp_libs $LIBS"
5192     libs_qga="$lttng_ust_libs $urcu_bp_libs $libs_qga"
5193   else
5194     error_exit "Trace backend 'ust' missing lttng-ust header files"
5195   fi
5196 fi
5197
5198 ##########################################
5199 # For 'dtrace' backend, test if 'dtrace' command is present
5200 if have_backend "dtrace"; then
5201   if ! has 'dtrace' ; then
5202     error_exit "dtrace command is not found in PATH $PATH"
5203   fi
5204   trace_backend_stap="no"
5205   if has 'stap' ; then
5206     trace_backend_stap="yes"
5207   fi
5208 fi
5209
5210 ##########################################
5211 # check and set a backend for coroutine
5212
5213 # We prefer ucontext, but it's not always possible. The fallback
5214 # is sigcontext. On Windows the only valid backend is the Windows
5215 # specific one.
5216
5217 ucontext_works=no
5218 if test "$darwin" != "yes"; then
5219   cat > $TMPC << EOF
5220 #include <ucontext.h>
5221 #ifdef __stub_makecontext
5222 #error Ignoring glibc stub makecontext which will always fail
5223 #endif
5224 int main(void) { makecontext(0, 0, 0); return 0; }
5225 EOF
5226   if compile_prog "" "" ; then
5227     ucontext_works=yes
5228   fi
5229 fi
5230
5231 if test "$coroutine" = ""; then
5232   if test "$mingw32" = "yes"; then
5233     coroutine=win32
5234   elif test "$ucontext_works" = "yes"; then
5235     coroutine=ucontext
5236   else
5237     coroutine=sigaltstack
5238   fi
5239 else
5240   case $coroutine in
5241   windows)
5242     if test "$mingw32" != "yes"; then
5243       error_exit "'windows' coroutine backend only valid for Windows"
5244     fi
5245     # Unfortunately the user visible backend name doesn't match the
5246     # coroutine-*.c filename for this case, so we have to adjust it here.
5247     coroutine=win32
5248     ;;
5249   ucontext)
5250     if test "$ucontext_works" != "yes"; then
5251       feature_not_found "ucontext"
5252     fi
5253     ;;
5254   sigaltstack)
5255     if test "$mingw32" = "yes"; then
5256       error_exit "only the 'windows' coroutine backend is valid for Windows"
5257     fi
5258     ;;
5259   *)
5260     error_exit "unknown coroutine backend $coroutine"
5261     ;;
5262   esac
5263 fi
5264
5265 if test "$coroutine_pool" = ""; then
5266   coroutine_pool=yes
5267 fi
5268
5269 if test "$debug_stack_usage" = "yes"; then
5270   if test "$coroutine_pool" = "yes"; then
5271     echo "WARN: disabling coroutine pool for stack usage debugging"
5272     coroutine_pool=no
5273   fi
5274 fi
5275
5276
5277 ##########################################
5278 # check if we have open_by_handle_at
5279
5280 open_by_handle_at=no
5281 cat > $TMPC << EOF
5282 #include <fcntl.h>
5283 #if !defined(AT_EMPTY_PATH)
5284 # error missing definition
5285 #else
5286 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
5287 #endif
5288 EOF
5289 if compile_prog "" "" ; then
5290     open_by_handle_at=yes
5291 fi
5292
5293 ########################################
5294 # check if we have linux/magic.h
5295
5296 linux_magic_h=no
5297 cat > $TMPC << EOF
5298 #include <linux/magic.h>
5299 int main(void) {
5300   return 0;
5301 }
5302 EOF
5303 if compile_prog "" "" ; then
5304     linux_magic_h=yes
5305 fi
5306
5307 ########################################
5308 # check whether we can disable warning option with a pragma (this is needed
5309 # to silence warnings in the headers of some versions of external libraries).
5310 # This test has to be compiled with -Werror as otherwise an unknown pragma is
5311 # only a warning.
5312 #
5313 # If we can't selectively disable warning in the code, disable -Werror so that
5314 # the build doesn't fail anyway.
5315
5316 pragma_disable_unused_but_set=no
5317 cat > $TMPC << EOF
5318 #pragma GCC diagnostic push
5319 #pragma GCC diagnostic ignored "-Wstrict-prototypes"
5320 #pragma GCC diagnostic pop
5321
5322 int main(void) {
5323     return 0;
5324 }
5325 EOF
5326 if compile_prog "-Werror" "" ; then
5327     pragma_diagnostic_available=yes
5328 else
5329     werror=no
5330 fi
5331
5332 ########################################
5333 # check if we have valgrind/valgrind.h
5334
5335 valgrind_h=no
5336 cat > $TMPC << EOF
5337 #include <valgrind/valgrind.h>
5338 int main(void) {
5339   return 0;
5340 }
5341 EOF
5342 if compile_prog "" "" ; then
5343     valgrind_h=yes
5344 fi
5345
5346 ########################################
5347 # check if environ is declared
5348
5349 has_environ=no
5350 cat > $TMPC << EOF
5351 #include <unistd.h>
5352 int main(void) {
5353     environ = 0;
5354     return 0;
5355 }
5356 EOF
5357 if compile_prog "" "" ; then
5358     has_environ=yes
5359 fi
5360
5361 ########################################
5362 # check if cpuid.h is usable.
5363
5364 cat > $TMPC << EOF
5365 #include <cpuid.h>
5366 int main(void) {
5367     unsigned a, b, c, d;
5368     int max = __get_cpuid_max(0, 0);
5369
5370     if (max >= 1) {
5371         __cpuid(1, a, b, c, d);
5372     }
5373
5374     if (max >= 7) {
5375         __cpuid_count(7, 0, a, b, c, d);
5376     }
5377
5378     return 0;
5379 }
5380 EOF
5381 if compile_prog "" "" ; then
5382     cpuid_h=yes
5383 fi
5384
5385 ##########################################
5386 # avx2 optimization requirement check
5387 #
5388 # There is no point enabling this if cpuid.h is not usable,
5389 # since we won't be able to select the new routines.
5390
5391 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
5392   cat > $TMPC << EOF
5393 #pragma GCC push_options
5394 #pragma GCC target("avx2")
5395 #include <cpuid.h>
5396 #include <immintrin.h>
5397 static int bar(void *a) {
5398     __m256i x = *(__m256i *)a;
5399     return _mm256_testz_si256(x, x);
5400 }
5401 int main(int argc, char *argv[]) { return bar(argv[0]); }
5402 EOF
5403   if compile_object "" ; then
5404     avx2_opt="yes"
5405   else
5406     avx2_opt="no"
5407   fi
5408 fi
5409
5410 ########################################
5411 # check if __[u]int128_t is usable.
5412
5413 int128=no
5414 cat > $TMPC << EOF
5415 __int128_t a;
5416 __uint128_t b;
5417 int main (void) {
5418   a = a + b;
5419   b = a * b;
5420   a = a * a;
5421   return 0;
5422 }
5423 EOF
5424 if compile_prog "" "" ; then
5425     int128=yes
5426 fi
5427
5428 #########################################
5429 # See if 128-bit atomic operations are supported.
5430
5431 atomic128=no
5432 if test "$int128" = "yes"; then
5433   cat > $TMPC << EOF
5434 int main(void)
5435 {
5436   unsigned __int128 x = 0, y = 0;
5437   y = __atomic_load_16(&x, 0);
5438   __atomic_store_16(&x, y, 0);
5439   __atomic_compare_exchange_16(&x, &y, x, 0, 0, 0);
5440   return 0;
5441 }
5442 EOF
5443   if compile_prog "" "" ; then
5444     atomic128=yes
5445   fi
5446 fi
5447
5448 cmpxchg128=no
5449 if test "$int128" = yes && test "$atomic128" = no; then
5450   cat > $TMPC << EOF
5451 int main(void)
5452 {
5453   unsigned __int128 x = 0, y = 0;
5454   __sync_val_compare_and_swap_16(&x, y, x);
5455   return 0;
5456 }
5457 EOF
5458   if compile_prog "" "" ; then
5459     cmpxchg128=yes
5460   fi
5461 fi
5462
5463 #########################################
5464 # See if 64-bit atomic operations are supported.
5465 # Note that without __atomic builtins, we can only
5466 # assume atomic loads/stores max at pointer size.
5467
5468 cat > $TMPC << EOF
5469 #include <stdint.h>
5470 int main(void)
5471 {
5472   uint64_t x = 0, y = 0;
5473 #ifdef __ATOMIC_RELAXED
5474   y = __atomic_load_8(&x, 0);
5475   __atomic_store_8(&x, y, 0);
5476   __atomic_compare_exchange_8(&x, &y, x, 0, 0, 0);
5477   __atomic_exchange_8(&x, y, 0);
5478   __atomic_fetch_add_8(&x, y, 0);
5479 #else
5480   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
5481   __sync_lock_test_and_set(&x, y);
5482   __sync_val_compare_and_swap(&x, y, 0);
5483   __sync_fetch_and_add(&x, y);
5484 #endif
5485   return 0;
5486 }
5487 EOF
5488 if compile_prog "" "" ; then
5489   atomic64=yes
5490 fi
5491
5492 ########################################
5493 # See if 16-byte vector operations are supported.
5494 # Even without a vector unit the compiler may expand these.
5495 # There is a bug in old GCC for PPC that crashes here.
5496 # Unfortunately it's the system compiler for Centos 7.
5497
5498 cat > $TMPC << EOF
5499 typedef unsigned char U1 __attribute__((vector_size(16)));
5500 typedef unsigned short U2 __attribute__((vector_size(16)));
5501 typedef unsigned int U4 __attribute__((vector_size(16)));
5502 typedef unsigned long long U8 __attribute__((vector_size(16)));
5503 typedef signed char S1 __attribute__((vector_size(16)));
5504 typedef signed short S2 __attribute__((vector_size(16)));
5505 typedef signed int S4 __attribute__((vector_size(16)));
5506 typedef signed long long S8 __attribute__((vector_size(16)));
5507 static U1 a1, b1;
5508 static U2 a2, b2;
5509 static U4 a4, b4;
5510 static U8 a8, b8;
5511 static S1 c1;
5512 static S2 c2;
5513 static S4 c4;
5514 static S8 c8;
5515 static int i;
5516 void helper(void *d, void *a, int shift, int i);
5517 void helper(void *d, void *a, int shift, int i)
5518 {
5519   *(U1 *)(d + i) = *(U1 *)(a + i) << shift;
5520   *(U2 *)(d + i) = *(U2 *)(a + i) << shift;
5521   *(U4 *)(d + i) = *(U4 *)(a + i) << shift;
5522   *(U8 *)(d + i) = *(U8 *)(a + i) << shift;
5523 }
5524 int main(void)
5525 {
5526   a1 += b1; a2 += b2; a4 += b4; a8 += b8;
5527   a1 -= b1; a2 -= b2; a4 -= b4; a8 -= b8;
5528   a1 *= b1; a2 *= b2; a4 *= b4; a8 *= b8;
5529   a1 &= b1; a2 &= b2; a4 &= b4; a8 &= b8;
5530   a1 |= b1; a2 |= b2; a4 |= b4; a8 |= b8;
5531   a1 ^= b1; a2 ^= b2; a4 ^= b4; a8 ^= b8;
5532   a1 <<= i; a2 <<= i; a4 <<= i; a8 <<= i;
5533   a1 >>= i; a2 >>= i; a4 >>= i; a8 >>= i;
5534   c1 >>= i; c2 >>= i; c4 >>= i; c8 >>= i;
5535   return 0;
5536 }
5537 EOF
5538
5539 vector16=no
5540 if compile_prog "" "" ; then
5541   vector16=yes
5542 fi
5543
5544 ########################################
5545 # check if getauxval is available.
5546
5547 getauxval=no
5548 cat > $TMPC << EOF
5549 #include <sys/auxv.h>
5550 int main(void) {
5551   return getauxval(AT_HWCAP) == 0;
5552 }
5553 EOF
5554 if compile_prog "" "" ; then
5555     getauxval=yes
5556 fi
5557
5558 ########################################
5559 # check if ccache is interfering with
5560 # semantic analysis of macros
5561
5562 unset CCACHE_CPP2
5563 ccache_cpp2=no
5564 cat > $TMPC << EOF
5565 static const int Z = 1;
5566 #define fn() ({ Z; })
5567 #define TAUT(X) ((X) == Z)
5568 #define PAREN(X, Y) (X == Y)
5569 #define ID(X) (X)
5570 int main(int argc, char *argv[])
5571 {
5572     int x = 0, y = 0;
5573     x = ID(x);
5574     x = fn();
5575     fn();
5576     if (PAREN(x, y)) return 0;
5577     if (TAUT(Z)) return 0;
5578     return 0;
5579 }
5580 EOF
5581
5582 if ! compile_object "-Werror"; then
5583     ccache_cpp2=yes
5584 fi
5585
5586 #################################################
5587 # clang does not support glibc + FORTIFY_SOURCE.
5588
5589 if test "$fortify_source" != "no"; then
5590   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
5591     fortify_source="no";
5592   elif test -n "$cxx" && has $cxx &&
5593        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
5594     fortify_source="no";
5595   else
5596     fortify_source="yes"
5597   fi
5598 fi
5599
5600 ###############################################
5601 # Check if copy_file_range is provided by glibc
5602 have_copy_file_range=no
5603 cat > $TMPC << EOF
5604 #include <unistd.h>
5605 int main(void) {
5606   copy_file_range(0, NULL, 0, NULL, 0, 0);
5607   return 0;
5608 }
5609 EOF
5610 if compile_prog "" "" ; then
5611     have_copy_file_range=yes
5612 fi
5613
5614 ##########################################
5615 # check if struct fsxattr is available via linux/fs.h
5616
5617 have_fsxattr=no
5618 cat > $TMPC << EOF
5619 #include <linux/fs.h>
5620 struct fsxattr foo;
5621 int main(void) {
5622   return 0;
5623 }
5624 EOF
5625 if compile_prog "" "" ; then
5626     have_fsxattr=yes
5627 fi
5628
5629 ##########################################
5630 # check for usable membarrier system call
5631 if test "$membarrier" = "yes"; then
5632     have_membarrier=no
5633     if test "$mingw32" = "yes" ; then
5634         have_membarrier=yes
5635     elif test "$linux" = "yes" ; then
5636         cat > $TMPC << EOF
5637     #include <linux/membarrier.h>
5638     #include <sys/syscall.h>
5639     #include <unistd.h>
5640     #include <stdlib.h>
5641     int main(void) {
5642         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
5643         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
5644         exit(0);
5645     }
5646 EOF
5647         if compile_prog "" "" ; then
5648             have_membarrier=yes
5649         fi
5650     fi
5651     if test "$have_membarrier" = "no"; then
5652       feature_not_found "membarrier" "membarrier system call not available"
5653     fi
5654 else
5655     # Do not enable it by default even for Mingw32, because it doesn't
5656     # work on Wine.
5657     membarrier=no
5658 fi
5659
5660 ##########################################
5661 # check if rtnetlink.h exists and is useful
5662 have_rtnetlink=no
5663 cat > $TMPC << EOF
5664 #include <linux/rtnetlink.h>
5665 int main(void) {
5666   return IFLA_PROTO_DOWN;
5667 }
5668 EOF
5669 if compile_prog "" "" ; then
5670     have_rtnetlink=yes
5671 fi
5672
5673 ##########################################
5674 # check for usable AF_VSOCK environment
5675 have_af_vsock=no
5676 cat > $TMPC << EOF
5677 #include <errno.h>
5678 #include <sys/types.h>
5679 #include <sys/socket.h>
5680 #if !defined(AF_VSOCK)
5681 # error missing AF_VSOCK flag
5682 #endif
5683 #include <linux/vm_sockets.h>
5684 int main(void) {
5685     int sock, ret;
5686     struct sockaddr_vm svm;
5687     socklen_t len = sizeof(svm);
5688     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
5689     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
5690     if ((ret == -1) && (errno == ENOTCONN)) {
5691         return 0;
5692     }
5693     return -1;
5694 }
5695 EOF
5696 if compile_prog "" "" ; then
5697     have_af_vsock=yes
5698 fi
5699
5700 ##########################################
5701 # check for usable AF_ALG environment
5702 hava_afalg=no
5703 cat > $TMPC << EOF
5704 #include <errno.h>
5705 #include <sys/types.h>
5706 #include <sys/socket.h>
5707 #include <linux/if_alg.h>
5708 int main(void) {
5709     int sock;
5710     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
5711     return sock;
5712 }
5713 EOF
5714 if compile_prog "" "" ; then
5715     have_afalg=yes
5716 fi
5717 if test "$crypto_afalg" = "yes"
5718 then
5719     if test "$have_afalg" != "yes"
5720     then
5721         error_exit "AF_ALG requested but could not be detected"
5722     fi
5723 fi
5724
5725
5726 #################################################
5727 # Check to see if we have the Hypervisor framework
5728 if [ "$darwin" = "yes" ] ; then
5729   cat > $TMPC << EOF
5730 #include <Hypervisor/hv.h>
5731 int main() { return 0;}
5732 EOF
5733   if ! compile_object ""; then
5734     hvf='no'
5735   else
5736     hvf='yes'
5737     LDFLAGS="-framework Hypervisor $LDFLAGS"
5738   fi
5739 fi
5740
5741 #################################################
5742 # Sparc implicitly links with --relax, which is
5743 # incompatible with -r, so --no-relax should be
5744 # given. It does no harm to give it on other
5745 # platforms too.
5746
5747 # Note: the prototype is needed since QEMU_CFLAGS
5748 #       contains -Wmissing-prototypes
5749 cat > $TMPC << EOF
5750 extern int foo(void);
5751 int foo(void) { return 0; }
5752 EOF
5753 if ! compile_object ""; then
5754   error_exit "Failed to compile object file for LD_REL_FLAGS test"
5755 fi
5756 for i in '-Wl,-r -Wl,--no-relax' -Wl,-r -r; do
5757   if do_cc -nostdlib $i -o $TMPMO $TMPO; then
5758     LD_REL_FLAGS=$i
5759     break
5760   fi
5761 done
5762 if test "$modules" = "yes" && test "$LD_REL_FLAGS" = ""; then
5763   feature_not_found "modules" "Cannot find how to build relocatable objects"
5764 fi
5765
5766 ##########################################
5767 # check for sysmacros.h
5768
5769 have_sysmacros=no
5770 cat > $TMPC << EOF
5771 #include <sys/sysmacros.h>
5772 int main(void) {
5773     return makedev(0, 0);
5774 }
5775 EOF
5776 if compile_prog "" "" ; then
5777     have_sysmacros=yes
5778 fi
5779
5780 ##########################################
5781 # Veritas HyperScale block driver VxHS
5782 # Check if libvxhs is installed
5783
5784 if test "$vxhs" != "no" ; then
5785   cat > $TMPC <<EOF
5786 #include <stdint.h>
5787 #include <qnio/qnio_api.h>
5788
5789 void *vxhs_callback;
5790
5791 int main(void) {
5792     iio_init(QNIO_VERSION, vxhs_callback);
5793     return 0;
5794 }
5795 EOF
5796   vxhs_libs="-lvxhs -lssl"
5797   if compile_prog "" "$vxhs_libs" ; then
5798     vxhs=yes
5799   else
5800     if test "$vxhs" = "yes" ; then
5801       feature_not_found "vxhs block device" "Install libvxhs See github"
5802     fi
5803     vxhs=no
5804   fi
5805 fi
5806
5807 ##########################################
5808 # check for _Static_assert()
5809
5810 have_static_assert=no
5811 cat > $TMPC << EOF
5812 _Static_assert(1, "success");
5813 int main(void) {
5814     return 0;
5815 }
5816 EOF
5817 if compile_prog "" "" ; then
5818     have_static_assert=yes
5819 fi
5820
5821 ##########################################
5822 # check for utmpx.h, it is missing e.g. on OpenBSD
5823
5824 have_utmpx=no
5825 cat > $TMPC << EOF
5826 #include <utmpx.h>
5827 struct utmpx user_info;
5828 int main(void) {
5829     return 0;
5830 }
5831 EOF
5832 if compile_prog "" "" ; then
5833     have_utmpx=yes
5834 fi
5835
5836 ##########################################
5837 # check for getrandom()
5838
5839 have_getrandom=no
5840 cat > $TMPC << EOF
5841 #include <sys/random.h>
5842 int main(void) {
5843     return getrandom(0, 0, GRND_NONBLOCK);
5844 }
5845 EOF
5846 if compile_prog "" "" ; then
5847     have_getrandom=yes
5848 fi
5849
5850 ##########################################
5851 # checks for sanitizers
5852
5853 have_asan=no
5854 have_ubsan=no
5855 have_asan_iface_h=no
5856 have_asan_iface_fiber=no
5857
5858 if test "$sanitizers" = "yes" ; then
5859   write_c_skeleton
5860   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
5861       have_asan=yes
5862   fi
5863
5864   # we could use a simple skeleton for flags checks, but this also
5865   # detect the static linking issue of ubsan, see also:
5866   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
5867   cat > $TMPC << EOF
5868 #include <stdlib.h>
5869 int main(void) {
5870     void *tmp = malloc(10);
5871     return *(int *)(tmp + 2);
5872 }
5873 EOF
5874   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
5875       have_ubsan=yes
5876   fi
5877
5878   if check_include "sanitizer/asan_interface.h" ; then
5879       have_asan_iface_h=yes
5880   fi
5881
5882   cat > $TMPC << EOF
5883 #include <sanitizer/asan_interface.h>
5884 int main(void) {
5885   __sanitizer_start_switch_fiber(0, 0, 0);
5886   return 0;
5887 }
5888 EOF
5889   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
5890       have_asan_iface_fiber=yes
5891   fi
5892 fi
5893
5894 ##########################################
5895 # Docker and cross-compiler support
5896 #
5897 # This is specifically for building test
5898 # cases for foreign architectures, not
5899 # cross-compiling QEMU itself.
5900
5901 if has "docker"; then
5902     docker=$($python $source_path/tests/docker/docker.py probe)
5903 fi
5904
5905 ##########################################
5906 # check for libpmem
5907
5908 if test "$libpmem" != "no"; then
5909         if $pkg_config --exists "libpmem"; then
5910                 libpmem="yes"
5911                 libpmem_libs=$($pkg_config --libs libpmem)
5912                 libpmem_cflags=$($pkg_config --cflags libpmem)
5913                 libs_softmmu="$libs_softmmu $libpmem_libs"
5914                 QEMU_CFLAGS="$QEMU_CFLAGS $libpmem_cflags"
5915         else
5916                 if test "$libpmem" = "yes" ; then
5917                         feature_not_found "libpmem" "Install nvml or pmdk"
5918                 fi
5919                 libpmem="no"
5920         fi
5921 fi
5922
5923 ##########################################
5924 # check for slirp
5925
5926 case "$slirp" in
5927   "" | yes)
5928     if $pkg_config slirp; then
5929       slirp=system
5930     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
5931       slirp=git
5932     elif test -e "${source_path}/slirp/Makefile" ; then
5933       slirp=internal
5934     elif test -z "$slirp" ; then
5935       slirp=no
5936     else
5937       feature_not_found "slirp" "Install slirp devel or git submodule"
5938     fi
5939     ;;
5940
5941   system)
5942     if ! $pkg_config slirp; then
5943       feature_not_found "slirp" "Install slirp devel"
5944     fi
5945     ;;
5946 esac
5947
5948 case "$slirp" in
5949   git | internal)
5950     if test "$slirp" = git; then
5951       git_submodules="${git_submodules} slirp"
5952     fi
5953     mkdir -p slirp
5954     slirp_cflags="-I\$(SRC_PATH)/slirp/src -I\$(BUILD_DIR)/slirp/src"
5955     slirp_libs="-L\$(BUILD_DIR)/slirp -lslirp"
5956     ;;
5957
5958   system)
5959     slirp_version=$($pkg_config --modversion slirp 2>/dev/null)
5960     slirp_cflags=$($pkg_config --cflags slirp 2>/dev/null)
5961     slirp_libs=$($pkg_config --libs slirp 2>/dev/null)
5962     ;;
5963
5964   no)
5965     ;;
5966   *)
5967     error_exit "Unknown state for slirp: $slirp"
5968     ;;
5969 esac
5970
5971
5972 ##########################################
5973 # End of CC checks
5974 # After here, no more $cc or $ld runs
5975
5976 write_c_skeleton
5977
5978 if test "$gcov" = "yes" ; then
5979   CFLAGS="-fprofile-arcs -ftest-coverage -g $CFLAGS"
5980   LDFLAGS="-fprofile-arcs -ftest-coverage $LDFLAGS"
5981 elif test "$fortify_source" = "yes" ; then
5982   CFLAGS="-O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $CFLAGS"
5983 elif test "$debug" = "no"; then
5984   CFLAGS="-O2 $CFLAGS"
5985 fi
5986
5987 if test "$have_asan" = "yes"; then
5988   CFLAGS="-fsanitize=address $CFLAGS"
5989   if test "$have_asan_iface_h" = "no" ; then
5990       echo "ASAN build enabled, but ASAN header missing." \
5991            "Without code annotation, the report may be inferior."
5992   elif test "$have_asan_iface_fiber" = "no" ; then
5993       echo "ASAN build enabled, but ASAN header is too old." \
5994            "Without code annotation, the report may be inferior."
5995   fi
5996 fi
5997 if test "$have_ubsan" = "yes"; then
5998   CFLAGS="-fsanitize=undefined $CFLAGS"
5999 fi
6000
6001 ##########################################
6002 # Do we have libnfs
6003 if test "$libnfs" != "no" ; then
6004   if $pkg_config --atleast-version=1.9.3 libnfs; then
6005     libnfs="yes"
6006     libnfs_libs=$($pkg_config --libs libnfs)
6007   else
6008     if test "$libnfs" = "yes" ; then
6009       feature_not_found "libnfs" "Install libnfs devel >= 1.9.3"
6010     fi
6011     libnfs="no"
6012   fi
6013 fi
6014
6015 ##########################################
6016 # Do we have libudev
6017 if test "$libudev" != "no" ; then
6018   if $pkg_config libudev && test "$static" != "yes"; then
6019     libudev="yes"
6020     libudev_libs=$($pkg_config --libs libudev)
6021   else
6022     libudev="no"
6023   fi
6024 fi
6025
6026 # Now we've finished running tests it's OK to add -Werror to the compiler flags
6027 if test "$werror" = "yes"; then
6028     QEMU_CFLAGS="-Werror $QEMU_CFLAGS"
6029 fi
6030
6031 if test "$solaris" = "no" ; then
6032     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
6033         LDFLAGS="-Wl,--warn-common $LDFLAGS"
6034     fi
6035 fi
6036
6037 # test if pod2man has --utf8 option
6038 if pod2man --help | grep -q utf8; then
6039     POD2MAN="pod2man --utf8"
6040 else
6041     POD2MAN="pod2man"
6042 fi
6043
6044 # Use ASLR, no-SEH and DEP if available
6045 if test "$mingw32" = "yes" ; then
6046     for flag in --dynamicbase --no-seh --nxcompat; do
6047         if ld_has $flag ; then
6048             LDFLAGS="-Wl,$flag $LDFLAGS"
6049         fi
6050     done
6051 fi
6052
6053 # Disable OpenBSD W^X if available
6054 if test "$tcg" = "yes" && test "$targetos" = "OpenBSD"; then
6055     cat > $TMPC <<EOF
6056     int main(void) { return 0; }
6057 EOF
6058     wx_ldflags="-Wl,-z,wxneeded"
6059     if compile_prog "" "$wx_ldflags"; then
6060         QEMU_LDFLAGS="$QEMU_LDFLAGS $wx_ldflags"
6061     fi
6062 fi
6063
6064 qemu_confdir=$sysconfdir$confsuffix
6065 qemu_moddir=$libdir$confsuffix
6066 qemu_datadir=$datadir$confsuffix
6067 qemu_localedir="$datadir/locale"
6068 qemu_icondir="$datadir/icons"
6069 qemu_desktopdir="$datadir/applications"
6070
6071 # We can only support ivshmem if we have eventfd
6072 if [ "$eventfd" = "yes" ]; then
6073   ivshmem=yes
6074 fi
6075
6076 tools=""
6077 if test "$want_tools" = "yes" ; then
6078   tools="qemu-img\$(EXESUF) qemu-io\$(EXESUF) qemu-edid\$(EXESUF) $tools"
6079   if [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" ] ; then
6080     tools="qemu-nbd\$(EXESUF) $tools"
6081   fi
6082   if [ "$ivshmem" = "yes" ]; then
6083     tools="ivshmem-client\$(EXESUF) ivshmem-server\$(EXESUF) $tools"
6084   fi
6085   if [ "$curl" = "yes" ]; then
6086       tools="elf2dmp\$(EXESUF) $tools"
6087   fi
6088 fi
6089 if test "$softmmu" = yes ; then
6090   if test "$linux" = yes; then
6091     if test "$virtfs" != no && test "$cap" = yes && test "$attr" = yes ; then
6092       virtfs=yes
6093       tools="$tools fsdev/virtfs-proxy-helper\$(EXESUF)"
6094     else
6095       if test "$virtfs" = yes; then
6096         error_exit "VirtFS requires libcap devel and libattr devel"
6097       fi
6098       virtfs=no
6099     fi
6100     if test "$mpath" != no && test "$mpathpersist" = yes ; then
6101       mpath=yes
6102     else
6103       if test "$mpath" = yes; then
6104         error_exit "Multipath requires libmpathpersist devel"
6105       fi
6106       mpath=no
6107     fi
6108     tools="$tools scsi/qemu-pr-helper\$(EXESUF)"
6109   else
6110     if test "$virtfs" = yes; then
6111       error_exit "VirtFS is supported only on Linux"
6112     fi
6113     virtfs=no
6114     if test "$mpath" = yes; then
6115       error_exit "Multipath is supported only on Linux"
6116     fi
6117     mpath=no
6118   fi
6119   if test "$xkbcommon" = "yes"; then
6120     tools="qemu-keymap\$(EXESUF) $tools"
6121   fi
6122 fi
6123
6124 # Probe for guest agent support/options
6125
6126 if [ "$guest_agent" != "no" ]; then
6127   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
6128       guest_agent=no
6129   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
6130       tools="qemu-ga $tools"
6131       guest_agent=yes
6132   elif [ "$guest_agent" != yes ]; then
6133       guest_agent=no
6134   else
6135       error_exit "Guest agent is not supported on this platform"
6136   fi
6137 fi
6138
6139 # Guest agent Window MSI  package
6140
6141 if test "$guest_agent" != yes; then
6142   if test "$guest_agent_msi" = yes; then
6143     error_exit "MSI guest agent package requires guest agent enabled"
6144   fi
6145   guest_agent_msi=no
6146 elif test "$mingw32" != "yes"; then
6147   if test "$guest_agent_msi" = "yes"; then
6148     error_exit "MSI guest agent package is available only for MinGW Windows cross-compilation"
6149   fi
6150   guest_agent_msi=no
6151 elif ! has wixl; then
6152   if test "$guest_agent_msi" = "yes"; then
6153     error_exit "MSI guest agent package requires wixl tool installed ( usually from msitools package )"
6154   fi
6155   guest_agent_msi=no
6156 else
6157   # we support qemu-ga, mingw32, and wixl: default to MSI enabled if it wasn't
6158   # disabled explicitly
6159   if test "$guest_agent_msi" != "no"; then
6160     guest_agent_msi=yes
6161   fi
6162 fi
6163
6164 if test "$guest_agent_msi" = "yes"; then
6165   if test "$guest_agent_with_vss" = "yes"; then
6166     QEMU_GA_MSI_WITH_VSS="-D InstallVss"
6167   fi
6168
6169   if test "$QEMU_GA_MANUFACTURER" = ""; then
6170     QEMU_GA_MANUFACTURER=QEMU
6171   fi
6172
6173   if test "$QEMU_GA_DISTRO" = ""; then
6174     QEMU_GA_DISTRO=Linux
6175   fi
6176
6177   if test "$QEMU_GA_VERSION" = ""; then
6178       QEMU_GA_VERSION=$(cat $source_path/VERSION)
6179   fi
6180
6181   QEMU_GA_MSI_MINGW_DLL_PATH="-D Mingw_dlls=$($pkg_config --variable=prefix glib-2.0)/bin"
6182
6183   case "$cpu" in
6184   x86_64)
6185     QEMU_GA_MSI_ARCH="-a x64 -D Arch=64"
6186     ;;
6187   i386)
6188     QEMU_GA_MSI_ARCH="-D Arch=32"
6189     ;;
6190   *)
6191     error_exit "CPU $cpu not supported for building installation package"
6192     ;;
6193   esac
6194 fi
6195
6196 # Mac OS X ships with a broken assembler
6197 roms=
6198 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
6199         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
6200         test "$softmmu" = yes ; then
6201     # Different host OS linkers have different ideas about the name of the ELF
6202     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
6203     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
6204     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
6205         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
6206             ld_i386_emulation="$emu"
6207             roms="optionrom"
6208             break
6209         fi
6210     done
6211 fi
6212 if test "$ARCH" = "ppc64" && test "$targetos" != "Darwin" ; then
6213   roms="$roms spapr-rtas"
6214 fi
6215
6216 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
6217 if test "$cpu" = "s390x" ; then
6218   write_c_skeleton
6219   if compile_prog "-march=z900" ""; then
6220     roms="$roms s390-ccw"
6221   fi
6222 fi
6223
6224 # Probe for the need for relocating the user-only binary.
6225 if ( [ "$linux_user" = yes ] || [ "$bsd_user" = yes ] ) && [ "$pie" = no ]; then
6226   textseg_addr=
6227   case "$cpu" in
6228     arm | i386 | ppc* | s390* | sparc* | x86_64 | x32)
6229       # ??? Rationale for choosing this address
6230       textseg_addr=0x60000000
6231       ;;
6232     mips)
6233       # A 256M aligned address, high in the address space, with enough
6234       # room for the code_gen_buffer above it before the stack.
6235       textseg_addr=0x60000000
6236       ;;
6237   esac
6238   if [ -n "$textseg_addr" ]; then
6239     cat > $TMPC <<EOF
6240     int main(void) { return 0; }
6241 EOF
6242     textseg_ldflags="-Wl,-Ttext-segment=$textseg_addr"
6243     if ! compile_prog "" "$textseg_ldflags"; then
6244       # In case ld does not support -Ttext-segment, edit the default linker
6245       # script via sed to set the .text start addr.  This is needed on FreeBSD
6246       # at least.
6247       if ! $ld --verbose >/dev/null 2>&1; then
6248         error_exit \
6249             "We need to link the QEMU user mode binaries at a" \
6250             "specific text address. Unfortunately your linker" \
6251             "doesn't support either the -Ttext-segment option or" \
6252             "printing the default linker script with --verbose." \
6253             "If you don't want the user mode binaries, pass the" \
6254             "--disable-user option to configure."
6255       fi
6256
6257       $ld --verbose | sed \
6258         -e '1,/==================================================/d' \
6259         -e '/==================================================/,$d' \
6260         -e "s/[.] = [0-9a-fx]* [+] SIZEOF_HEADERS/. = $textseg_addr + SIZEOF_HEADERS/" \
6261         -e "s/__executable_start = [0-9a-fx]*/__executable_start = $textseg_addr/" > config-host.ld
6262       textseg_ldflags="-Wl,-T../config-host.ld"
6263     fi
6264   fi
6265 fi
6266
6267 # Check that the C++ compiler exists and works with the C compiler.
6268 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
6269 if has $cxx; then
6270     cat > $TMPC <<EOF
6271 int c_function(void);
6272 int main(void) { return c_function(); }
6273 EOF
6274
6275     compile_object
6276
6277     cat > $TMPCXX <<EOF
6278 extern "C" {
6279    int c_function(void);
6280 }
6281 int c_function(void) { return 42; }
6282 EOF
6283
6284     update_cxxflags
6285
6286     if do_cxx $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $LDFLAGS; then
6287         # C++ compiler $cxx works ok with C compiler $cc
6288         :
6289     else
6290         echo "C++ compiler $cxx does not work with C compiler $cc"
6291         echo "Disabling C++ specific optional code"
6292         cxx=
6293     fi
6294 else
6295     echo "No C++ compiler available; disabling C++ specific optional code"
6296     cxx=
6297 fi
6298
6299 echo_version() {
6300     if test "$1" = "yes" ; then
6301         echo "($2)"
6302     fi
6303 }
6304
6305 # prepend pixman and ftd flags after all config tests are done
6306 QEMU_CFLAGS="$pixman_cflags $fdt_cflags $QEMU_CFLAGS"
6307 QEMU_LDFLAGS="$fdt_ldflags $QEMU_LDFLAGS"
6308 libs_softmmu="$pixman_libs $libs_softmmu"
6309
6310 echo "Install prefix    $prefix"
6311 echo "BIOS directory    $(eval echo $qemu_datadir)"
6312 echo "firmware path     $(eval echo $firmwarepath)"
6313 echo "binary directory  $(eval echo $bindir)"
6314 echo "library directory $(eval echo $libdir)"
6315 echo "module directory  $(eval echo $qemu_moddir)"
6316 echo "libexec directory $(eval echo $libexecdir)"
6317 echo "include directory $(eval echo $includedir)"
6318 echo "config directory  $(eval echo $sysconfdir)"
6319 if test "$mingw32" = "no" ; then
6320 echo "local state directory   $(eval echo $local_statedir)"
6321 echo "Manual directory  $(eval echo $mandir)"
6322 echo "ELF interp prefix $interp_prefix"
6323 else
6324 echo "local state directory   queried at runtime"
6325 echo "Windows SDK       $win_sdk"
6326 fi
6327 echo "Source path       $source_path"
6328 echo "GIT binary        $git"
6329 echo "GIT submodules    $git_submodules"
6330 echo "C compiler        $cc"
6331 echo "Host C compiler   $host_cc"
6332 echo "C++ compiler      $cxx"
6333 echo "Objective-C compiler $objcc"
6334 echo "ARFLAGS           $ARFLAGS"
6335 echo "CFLAGS            $CFLAGS"
6336 echo "QEMU_CFLAGS       $QEMU_CFLAGS"
6337 echo "LDFLAGS           $LDFLAGS"
6338 echo "QEMU_LDFLAGS      $QEMU_LDFLAGS"
6339 echo "make              $make"
6340 echo "install           $install"
6341 echo "python            $python ($python_version)"
6342 echo "slirp support     $slirp $(echo_version $slirp $slirp_version)"
6343 if test "$slirp" != "no" ; then
6344     echo "smbd              $smbd"
6345 fi
6346 echo "module support    $modules"
6347 echo "host CPU          $cpu"
6348 echo "host big endian   $bigendian"
6349 echo "target list       $target_list"
6350 echo "gprof enabled     $gprof"
6351 echo "sparse enabled    $sparse"
6352 echo "strip binaries    $strip_opt"
6353 echo "profiler          $profiler"
6354 echo "static build      $static"
6355 if test "$darwin" = "yes" ; then
6356     echo "Cocoa support     $cocoa"
6357 fi
6358 echo "SDL support       $sdl $(echo_version $sdl $sdlversion)"
6359 echo "SDL image support $sdl_image"
6360 echo "GTK support       $gtk $(echo_version $gtk $gtk_version)"
6361 echo "GTK GL support    $gtk_gl"
6362 echo "VTE support       $vte $(echo_version $vte $vteversion)"
6363 echo "TLS priority      $tls_priority"
6364 echo "GNUTLS support    $gnutls"
6365 echo "libgcrypt         $gcrypt"
6366 echo "nettle            $nettle $(echo_version $nettle $nettle_version)"
6367 echo "libtasn1          $tasn1"
6368 echo "PAM               $auth_pam"
6369 echo "iconv support     $iconv"
6370 echo "curses support    $curses"
6371 echo "virgl support     $virglrenderer $(echo_version $virglrenderer $virgl_version)"
6372 echo "curl support      $curl"
6373 echo "mingw32 support   $mingw32"
6374 echo "Audio drivers     $audio_drv_list"
6375 echo "Block whitelist (rw) $block_drv_rw_whitelist"
6376 echo "Block whitelist (ro) $block_drv_ro_whitelist"
6377 echo "VirtFS support    $virtfs"
6378 echo "Multipath support $mpath"
6379 echo "VNC support       $vnc"
6380 if test "$vnc" = "yes" ; then
6381     echo "VNC SASL support  $vnc_sasl"
6382     echo "VNC JPEG support  $vnc_jpeg"
6383     echo "VNC PNG support   $vnc_png"
6384 fi
6385 if test -n "$sparc_cpu"; then
6386     echo "Target Sparc Arch $sparc_cpu"
6387 fi
6388 echo "xen support       $xen"
6389 if test "$xen" = "yes" ; then
6390   echo "xen ctrl version  $xen_ctrl_version"
6391 fi
6392 echo "brlapi support    $brlapi"
6393 echo "bluez  support    $bluez"
6394 echo "Documentation     $docs"
6395 echo "PIE               $pie"
6396 echo "vde support       $vde"
6397 echo "netmap support    $netmap"
6398 echo "Linux AIO support $linux_aio"
6399 echo "ATTR/XATTR support $attr"
6400 echo "Install blobs     $blobs"
6401 echo "KVM support       $kvm"
6402 echo "HAX support       $hax"
6403 echo "HVF support       $hvf"
6404 echo "WHPX support      $whpx"
6405 echo "TCG support       $tcg"
6406 if test "$tcg" = "yes" ; then
6407     echo "TCG debug enabled $debug_tcg"
6408     echo "TCG interpreter   $tcg_interpreter"
6409 fi
6410 echo "malloc trim support $malloc_trim"
6411 echo "RDMA support      $rdma"
6412 echo "PVRDMA support    $pvrdma"
6413 echo "fdt support       $fdt"
6414 echo "membarrier        $membarrier"
6415 echo "preadv support    $preadv"
6416 echo "fdatasync         $fdatasync"
6417 echo "madvise           $madvise"
6418 echo "posix_madvise     $posix_madvise"
6419 echo "posix_memalign    $posix_memalign"
6420 echo "libcap-ng support $cap_ng"
6421 echo "vhost-net support $vhost_net"
6422 echo "vhost-crypto support $vhost_crypto"
6423 echo "vhost-scsi support $vhost_scsi"
6424 echo "vhost-vsock support $vhost_vsock"
6425 echo "vhost-user support $vhost_user"
6426 echo "Trace backends    $trace_backends"
6427 if have_backend "simple"; then
6428 echo "Trace output file $trace_file-<pid>"
6429 fi
6430 echo "spice support     $spice $(echo_version $spice $spice_protocol_version/$spice_server_version)"
6431 echo "rbd support       $rbd"
6432 echo "xfsctl support    $xfs"
6433 echo "smartcard support $smartcard"
6434 echo "libusb            $libusb"
6435 echo "usb net redir     $usb_redir"
6436 echo "OpenGL support    $opengl"
6437 echo "OpenGL dmabufs    $opengl_dmabuf"
6438 echo "libiscsi support  $libiscsi"
6439 echo "libnfs support    $libnfs"
6440 echo "build guest agent $guest_agent"
6441 echo "QGA VSS support   $guest_agent_with_vss"
6442 echo "QGA w32 disk info $guest_agent_ntddscsi"
6443 echo "QGA MSI support   $guest_agent_msi"
6444 echo "seccomp support   $seccomp"
6445 echo "coroutine backend $coroutine"
6446 echo "coroutine pool    $coroutine_pool"
6447 echo "debug stack usage $debug_stack_usage"
6448 echo "mutex debugging   $debug_mutex"
6449 echo "crypto afalg      $crypto_afalg"
6450 echo "GlusterFS support $glusterfs"
6451 echo "gcov              $gcov_tool"
6452 echo "gcov enabled      $gcov"
6453 echo "TPM support       $tpm"
6454 echo "libssh2 support   $libssh2"
6455 echo "TPM passthrough   $tpm_passthrough"
6456 echo "TPM emulator      $tpm_emulator"
6457 echo "QOM debugging     $qom_cast_debug"
6458 echo "Live block migration $live_block_migration"
6459 echo "lzo support       $lzo"
6460 echo "snappy support    $snappy"
6461 echo "bzip2 support     $bzip2"
6462 echo "lzfse support     $lzfse"
6463 echo "NUMA host support $numa"
6464 echo "libxml2           $libxml2"
6465 echo "tcmalloc support  $tcmalloc"
6466 echo "jemalloc support  $jemalloc"
6467 echo "avx2 optimization $avx2_opt"
6468 echo "replication support $replication"
6469 echo "VxHS block device $vxhs"
6470 echo "bochs support     $bochs"
6471 echo "cloop support     $cloop"
6472 echo "dmg support       $dmg"
6473 echo "qcow v1 support   $qcow1"
6474 echo "vdi support       $vdi"
6475 echo "vvfat support     $vvfat"
6476 echo "qed support       $qed"
6477 echo "parallels support $parallels"
6478 echo "sheepdog support  $sheepdog"
6479 echo "capstone          $capstone"
6480 echo "docker            $docker"
6481 echo "libpmem support   $libpmem"
6482 echo "libudev           $libudev"
6483 echo "default devices   $default_devices"
6484
6485 if test "$supported_cpu" = "no"; then
6486     echo
6487     echo "WARNING: SUPPORT FOR THIS HOST CPU WILL GO AWAY IN FUTURE RELEASES!"
6488     echo
6489     echo "CPU host architecture $cpu support is not currently maintained."
6490     echo "The QEMU project intends to remove support for this host CPU in"
6491     echo "a future release if nobody volunteers to maintain it and to"
6492     echo "provide a build host for our continuous integration setup."
6493     echo "configure has succeeded and you can continue to build, but"
6494     echo "if you care about QEMU on this platform you should contact"
6495     echo "us upstream at qemu-devel@nongnu.org."
6496 fi
6497
6498 if test "$supported_os" = "no"; then
6499     echo
6500     echo "WARNING: SUPPORT FOR THIS HOST OS WILL GO AWAY IN FUTURE RELEASES!"
6501     echo
6502     echo "Host OS $targetos support is not currently maintained."
6503     echo "The QEMU project intends to remove support for this host OS in"
6504     echo "a future release if nobody volunteers to maintain it and to"
6505     echo "provide a build host for our continuous integration setup."
6506     echo "configure has succeeded and you can continue to build, but"
6507     echo "if you care about QEMU on this platform you should contact"
6508     echo "us upstream at qemu-devel@nongnu.org."
6509 fi
6510
6511 config_host_mak="config-host.mak"
6512
6513 echo "# Automatically generated by configure - do not modify" >config-all-disas.mak
6514
6515 echo "# Automatically generated by configure - do not modify" > $config_host_mak
6516 echo >> $config_host_mak
6517
6518 echo all: >> $config_host_mak
6519 echo "prefix=$prefix" >> $config_host_mak
6520 echo "bindir=$bindir" >> $config_host_mak
6521 echo "libdir=$libdir" >> $config_host_mak
6522 echo "libexecdir=$libexecdir" >> $config_host_mak
6523 echo "includedir=$includedir" >> $config_host_mak
6524 echo "mandir=$mandir" >> $config_host_mak
6525 echo "sysconfdir=$sysconfdir" >> $config_host_mak
6526 echo "qemu_confdir=$qemu_confdir" >> $config_host_mak
6527 echo "qemu_datadir=$qemu_datadir" >> $config_host_mak
6528 echo "qemu_firmwarepath=$firmwarepath" >> $config_host_mak
6529 echo "qemu_docdir=$qemu_docdir" >> $config_host_mak
6530 echo "qemu_moddir=$qemu_moddir" >> $config_host_mak
6531 if test "$mingw32" = "no" ; then
6532   echo "qemu_localstatedir=$local_statedir" >> $config_host_mak
6533 fi
6534 echo "qemu_helperdir=$libexecdir" >> $config_host_mak
6535 echo "qemu_localedir=$qemu_localedir" >> $config_host_mak
6536 echo "qemu_icondir=$qemu_icondir" >> $config_host_mak
6537 echo "qemu_desktopdir=$qemu_desktopdir" >> $config_host_mak
6538 echo "libs_softmmu=$libs_softmmu" >> $config_host_mak
6539 echo "GIT=$git" >> $config_host_mak
6540 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
6541 echo "GIT_UPDATE=$git_update" >> $config_host_mak
6542
6543 echo "ARCH=$ARCH" >> $config_host_mak
6544
6545 if test "$default_devices" = "yes" ; then
6546   echo "CONFIG_MINIKCONF_MODE=--defconfig" >> $config_host_mak
6547 else
6548   echo "CONFIG_MINIKCONF_MODE=--allnoconfig" >> $config_host_mak
6549 fi
6550 if test "$debug_tcg" = "yes" ; then
6551   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
6552 fi
6553 if test "$strip_opt" = "yes" ; then
6554   echo "STRIP=${strip}" >> $config_host_mak
6555 fi
6556 if test "$bigendian" = "yes" ; then
6557   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
6558 fi
6559 if test "$mingw32" = "yes" ; then
6560   echo "CONFIG_WIN32=y" >> $config_host_mak
6561   rc_version=$(cat $source_path/VERSION)
6562   version_major=${rc_version%%.*}
6563   rc_version=${rc_version#*.}
6564   version_minor=${rc_version%%.*}
6565   rc_version=${rc_version#*.}
6566   version_subminor=${rc_version%%.*}
6567   version_micro=0
6568   echo "CONFIG_FILEVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
6569   echo "CONFIG_PRODUCTVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
6570   if test "$guest_agent_with_vss" = "yes" ; then
6571     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
6572     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
6573     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
6574   fi
6575   if test "$guest_agent_ntddscsi" = "yes" ; then
6576     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
6577   fi
6578   if test "$guest_agent_msi" = "yes"; then
6579     echo "QEMU_GA_MSI_ENABLED=yes" >> $config_host_mak
6580     echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
6581     echo "QEMU_GA_MSI_WITH_VSS=${QEMU_GA_MSI_WITH_VSS}" >> $config_host_mak
6582     echo "QEMU_GA_MSI_ARCH=${QEMU_GA_MSI_ARCH}" >> $config_host_mak
6583     echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
6584     echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
6585     echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
6586   fi
6587 else
6588   echo "CONFIG_POSIX=y" >> $config_host_mak
6589 fi
6590
6591 if test "$linux" = "yes" ; then
6592   echo "CONFIG_LINUX=y" >> $config_host_mak
6593 fi
6594
6595 if test "$darwin" = "yes" ; then
6596   echo "CONFIG_DARWIN=y" >> $config_host_mak
6597 fi
6598
6599 if test "$solaris" = "yes" ; then
6600   echo "CONFIG_SOLARIS=y" >> $config_host_mak
6601 fi
6602 if test "$haiku" = "yes" ; then
6603   echo "CONFIG_HAIKU=y" >> $config_host_mak
6604 fi
6605 if test "$static" = "yes" ; then
6606   echo "CONFIG_STATIC=y" >> $config_host_mak
6607 fi
6608 if test "$profiler" = "yes" ; then
6609   echo "CONFIG_PROFILER=y" >> $config_host_mak
6610 fi
6611 if test "$slirp" != "no"; then
6612   echo "CONFIG_SLIRP=y" >> $config_host_mak
6613   echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
6614   echo "SLIRP_CFLAGS=$slirp_cflags" >> $config_host_mak
6615   echo "SLIRP_LIBS=$slirp_libs" >> $config_host_mak
6616 fi
6617 if [ "$slirp" = "git" -o "$slirp" = "internal" ]; then
6618     echo "config-host.h: subdir-slirp" >> $config_host_mak
6619 fi
6620 if test "$vde" = "yes" ; then
6621   echo "CONFIG_VDE=y" >> $config_host_mak
6622   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
6623 fi
6624 if test "$netmap" = "yes" ; then
6625   echo "CONFIG_NETMAP=y" >> $config_host_mak
6626 fi
6627 if test "$l2tpv3" = "yes" ; then
6628   echo "CONFIG_L2TPV3=y" >> $config_host_mak
6629 fi
6630 if test "$cap_ng" = "yes" ; then
6631   echo "CONFIG_LIBCAP=y" >> $config_host_mak
6632 fi
6633 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
6634 for drv in $audio_drv_list; do
6635     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
6636     case "$drv" in
6637         alsa | oss | pa | sdl)
6638             echo "$def=m" >> $config_host_mak ;;
6639         *)
6640             echo "$def=y" >> $config_host_mak ;;
6641     esac
6642 done
6643 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
6644 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
6645 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
6646 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
6647 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
6648 if test "$audio_pt_int" = "yes" ; then
6649   echo "CONFIG_AUDIO_PT_INT=y" >> $config_host_mak
6650 fi
6651 if test "$audio_win_int" = "yes" ; then
6652   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
6653 fi
6654 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
6655 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
6656 if test "$vnc" = "yes" ; then
6657   echo "CONFIG_VNC=y" >> $config_host_mak
6658 fi
6659 if test "$vnc_sasl" = "yes" ; then
6660   echo "CONFIG_VNC_SASL=y" >> $config_host_mak
6661 fi
6662 if test "$vnc_jpeg" = "yes" ; then
6663   echo "CONFIG_VNC_JPEG=y" >> $config_host_mak
6664 fi
6665 if test "$vnc_png" = "yes" ; then
6666   echo "CONFIG_VNC_PNG=y" >> $config_host_mak
6667 fi
6668 if test "$xkbcommon" = "yes" ; then
6669   echo "XKBCOMMON_CFLAGS=$xkbcommon_cflags" >> $config_host_mak
6670   echo "XKBCOMMON_LIBS=$xkbcommon_libs" >> $config_host_mak
6671 fi
6672 if test "$xfs" = "yes" ; then
6673   echo "CONFIG_XFS=y" >> $config_host_mak
6674 fi
6675 qemu_version=$(head $source_path/VERSION)
6676 echo "VERSION=$qemu_version" >>$config_host_mak
6677 echo "PKGVERSION=$pkgversion" >>$config_host_mak
6678 echo "SRC_PATH=$source_path" >> $config_host_mak
6679 echo "TARGET_DIRS=$target_list" >> $config_host_mak
6680 if [ "$docs" = "yes" ] ; then
6681   echo "BUILD_DOCS=yes" >> $config_host_mak
6682 fi
6683 if test "$modules" = "yes"; then
6684   # $shacmd can generate a hash started with digit, which the compiler doesn't
6685   # like as an symbol. So prefix it with an underscore
6686   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
6687   echo "CONFIG_MODULES=y" >> $config_host_mak
6688 fi
6689 if test "$have_x11" = "yes" && test "$need_x11" = "yes"; then
6690   echo "CONFIG_X11=y" >> $config_host_mak
6691   echo "X11_CFLAGS=$x11_cflags" >> $config_host_mak
6692   echo "X11_LIBS=$x11_libs" >> $config_host_mak
6693 fi
6694 if test "$sdl" = "yes" ; then
6695   echo "CONFIG_SDL=m" >> $config_host_mak
6696   echo "SDL_CFLAGS=$sdl_cflags" >> $config_host_mak
6697   echo "SDL_LIBS=$sdl_libs" >> $config_host_mak
6698   if test "$sdl_image" = "yes" ; then
6699       echo "CONFIG_SDL_IMAGE=y" >> $config_host_mak
6700   fi
6701 fi
6702 if test "$cocoa" = "yes" ; then
6703   echo "CONFIG_COCOA=y" >> $config_host_mak
6704 fi
6705 if test "$iconv" = "yes" ; then
6706   echo "CONFIG_ICONV=y" >> $config_host_mak
6707   echo "ICONV_CFLAGS=$iconv_cflags" >> $config_host_mak
6708   echo "ICONV_LIBS=$iconv_lib" >> $config_host_mak
6709 fi
6710 if test "$curses" = "yes" ; then
6711   echo "CONFIG_CURSES=m" >> $config_host_mak
6712   echo "CURSES_CFLAGS=$curses_inc" >> $config_host_mak
6713   echo "CURSES_LIBS=$curses_lib" >> $config_host_mak
6714 fi
6715 if test "$pipe2" = "yes" ; then
6716   echo "CONFIG_PIPE2=y" >> $config_host_mak
6717 fi
6718 if test "$accept4" = "yes" ; then
6719   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
6720 fi
6721 if test "$splice" = "yes" ; then
6722   echo "CONFIG_SPLICE=y" >> $config_host_mak
6723 fi
6724 if test "$eventfd" = "yes" ; then
6725   echo "CONFIG_EVENTFD=y" >> $config_host_mak
6726 fi
6727 if test "$memfd" = "yes" ; then
6728   echo "CONFIG_MEMFD=y" >> $config_host_mak
6729 fi
6730 if test "$have_usbfs" = "yes" ; then
6731   echo "CONFIG_USBFS=y" >> $config_host_mak
6732 fi
6733 if test "$fallocate" = "yes" ; then
6734   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
6735 fi
6736 if test "$fallocate_punch_hole" = "yes" ; then
6737   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
6738 fi
6739 if test "$fallocate_zero_range" = "yes" ; then
6740   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
6741 fi
6742 if test "$posix_fallocate" = "yes" ; then
6743   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
6744 fi
6745 if test "$sync_file_range" = "yes" ; then
6746   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
6747 fi
6748 if test "$fiemap" = "yes" ; then
6749   echo "CONFIG_FIEMAP=y" >> $config_host_mak
6750 fi
6751 if test "$dup3" = "yes" ; then
6752   echo "CONFIG_DUP3=y" >> $config_host_mak
6753 fi
6754 if test "$ppoll" = "yes" ; then
6755   echo "CONFIG_PPOLL=y" >> $config_host_mak
6756 fi
6757 if test "$prctl_pr_set_timerslack" = "yes" ; then
6758   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
6759 fi
6760 if test "$epoll" = "yes" ; then
6761   echo "CONFIG_EPOLL=y" >> $config_host_mak
6762 fi
6763 if test "$epoll_create1" = "yes" ; then
6764   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
6765 fi
6766 if test "$sendfile" = "yes" ; then
6767   echo "CONFIG_SENDFILE=y" >> $config_host_mak
6768 fi
6769 if test "$timerfd" = "yes" ; then
6770   echo "CONFIG_TIMERFD=y" >> $config_host_mak
6771 fi
6772 if test "$setns" = "yes" ; then
6773   echo "CONFIG_SETNS=y" >> $config_host_mak
6774 fi
6775 if test "$clock_adjtime" = "yes" ; then
6776   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
6777 fi
6778 if test "$syncfs" = "yes" ; then
6779   echo "CONFIG_SYNCFS=y" >> $config_host_mak
6780 fi
6781 if test "$inotify" = "yes" ; then
6782   echo "CONFIG_INOTIFY=y" >> $config_host_mak
6783 fi
6784 if test "$inotify1" = "yes" ; then
6785   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
6786 fi
6787 if test "$sem_timedwait" = "yes" ; then
6788   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
6789 fi
6790 if test "$strchrnul" = "yes" ; then
6791   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
6792 fi
6793 if test "$byteswap_h" = "yes" ; then
6794   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
6795 fi
6796 if test "$bswap_h" = "yes" ; then
6797   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
6798 fi
6799 if test "$curl" = "yes" ; then
6800   echo "CONFIG_CURL=m" >> $config_host_mak
6801   echo "CURL_CFLAGS=$curl_cflags" >> $config_host_mak
6802   echo "CURL_LIBS=$curl_libs" >> $config_host_mak
6803 fi
6804 if test "$brlapi" = "yes" ; then
6805   echo "CONFIG_BRLAPI=y" >> $config_host_mak
6806   echo "BRLAPI_LIBS=$brlapi_libs" >> $config_host_mak
6807 fi
6808 if test "$bluez" = "yes" ; then
6809   echo "CONFIG_BLUEZ=y" >> $config_host_mak
6810   echo "BLUEZ_CFLAGS=$bluez_cflags" >> $config_host_mak
6811 fi
6812 if test "$gtk" = "yes" ; then
6813   echo "CONFIG_GTK=m" >> $config_host_mak
6814   echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
6815   echo "GTK_LIBS=$gtk_libs" >> $config_host_mak
6816   if test "$gtk_gl" = "yes" ; then
6817     echo "CONFIG_GTK_GL=y" >> $config_host_mak
6818   fi
6819 fi
6820 if test "$gio" = "yes" ; then
6821     echo "CONFIG_GIO=y" >> $config_host_mak
6822     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
6823     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
6824 fi
6825 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
6826 if test "$gnutls" = "yes" ; then
6827   echo "CONFIG_GNUTLS=y" >> $config_host_mak
6828 fi
6829 if test "$gcrypt" = "yes" ; then
6830   echo "CONFIG_GCRYPT=y" >> $config_host_mak
6831   if test "$gcrypt_hmac" = "yes" ; then
6832     echo "CONFIG_GCRYPT_HMAC=y" >> $config_host_mak
6833   fi
6834 fi
6835 if test "$nettle" = "yes" ; then
6836   echo "CONFIG_NETTLE=y" >> $config_host_mak
6837   echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
6838 fi
6839 if test "$tasn1" = "yes" ; then
6840   echo "CONFIG_TASN1=y" >> $config_host_mak
6841 fi
6842 if test "$auth_pam" = "yes" ; then
6843     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
6844 fi
6845 if test "$have_ifaddrs_h" = "yes" ; then
6846     echo "HAVE_IFADDRS_H=y" >> $config_host_mak
6847 fi
6848 if test "$have_broken_size_max" = "yes" ; then
6849     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
6850 fi
6851
6852 # Work around a system header bug with some kernel/XFS header
6853 # versions where they both try to define 'struct fsxattr':
6854 # xfs headers will not try to redefine structs from linux headers
6855 # if this macro is set.
6856 if test "$have_fsxattr" = "yes" ; then
6857     echo "HAVE_FSXATTR=y" >> $config_host_mak
6858 fi
6859 if test "$have_copy_file_range" = "yes" ; then
6860     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
6861 fi
6862 if test "$vte" = "yes" ; then
6863   echo "CONFIG_VTE=y" >> $config_host_mak
6864   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
6865   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
6866 fi
6867 if test "$virglrenderer" = "yes" ; then
6868   echo "CONFIG_VIRGL=y" >> $config_host_mak
6869   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
6870   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
6871 fi
6872 if test "$xen" = "yes" ; then
6873   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
6874   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
6875 fi
6876 if test "$linux_aio" = "yes" ; then
6877   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
6878 fi
6879 if test "$attr" = "yes" ; then
6880   echo "CONFIG_ATTR=y" >> $config_host_mak
6881 fi
6882 if test "$libattr" = "yes" ; then
6883   echo "CONFIG_LIBATTR=y" >> $config_host_mak
6884 fi
6885 if test "$virtfs" = "yes" ; then
6886   echo "CONFIG_VIRTFS=y" >> $config_host_mak
6887 fi
6888 if test "$mpath" = "yes" ; then
6889   echo "CONFIG_MPATH=y" >> $config_host_mak
6890   if test "$mpathpersist_new_api" = "yes"; then
6891     echo "CONFIG_MPATH_NEW_API=y" >> $config_host_mak
6892   fi
6893 fi
6894 if test "$vhost_scsi" = "yes" ; then
6895   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
6896 fi
6897 if test "$vhost_net" = "yes" ; then
6898   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
6899 fi
6900 if test "$vhost_net_user" = "yes" ; then
6901   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
6902 fi
6903 if test "$vhost_crypto" = "yes" ; then
6904   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
6905 fi
6906 if test "$vhost_vsock" = "yes" ; then
6907   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
6908 fi
6909 if test "$vhost_kernel" = "yes" ; then
6910   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
6911 fi
6912 if test "$vhost_user" = "yes" ; then
6913   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
6914 fi
6915 if test "$blobs" = "yes" ; then
6916   echo "INSTALL_BLOBS=yes" >> $config_host_mak
6917 fi
6918 if test "$iovec" = "yes" ; then
6919   echo "CONFIG_IOVEC=y" >> $config_host_mak
6920 fi
6921 if test "$preadv" = "yes" ; then
6922   echo "CONFIG_PREADV=y" >> $config_host_mak
6923 fi
6924 if test "$fdt" != "no" ; then
6925   echo "CONFIG_FDT=y" >> $config_host_mak
6926 fi
6927 if test "$membarrier" = "yes" ; then
6928   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
6929 fi
6930 if test "$signalfd" = "yes" ; then
6931   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
6932 fi
6933 if test "$optreset" = "yes" ; then
6934   echo "HAVE_OPTRESET=y" >> $config_host_mak
6935 fi
6936 if test "$tcg" = "yes"; then
6937   echo "CONFIG_TCG=y" >> $config_host_mak
6938   if test "$tcg_interpreter" = "yes" ; then
6939     echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
6940   fi
6941 fi
6942 if test "$fdatasync" = "yes" ; then
6943   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
6944 fi
6945 if test "$madvise" = "yes" ; then
6946   echo "CONFIG_MADVISE=y" >> $config_host_mak
6947 fi
6948 if test "$posix_madvise" = "yes" ; then
6949   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
6950 fi
6951 if test "$posix_memalign" = "yes" ; then
6952   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
6953 fi
6954
6955 if test "$spice" = "yes" ; then
6956   echo "CONFIG_SPICE=y" >> $config_host_mak
6957 fi
6958
6959 if test "$smartcard" = "yes" ; then
6960   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
6961   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
6962   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
6963 fi
6964
6965 if test "$libusb" = "yes" ; then
6966   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
6967   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
6968   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
6969 fi
6970
6971 if test "$usb_redir" = "yes" ; then
6972   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
6973   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
6974   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
6975 fi
6976
6977 if test "$opengl" = "yes" ; then
6978   echo "CONFIG_OPENGL=y" >> $config_host_mak
6979   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
6980   if test "$opengl_dmabuf" = "yes" ; then
6981     echo "CONFIG_OPENGL_DMABUF=y" >> $config_host_mak
6982   fi
6983 fi
6984
6985 if test "$gbm" = "yes" ; then
6986     echo "CONFIG_GBM=y" >> $config_host_mak
6987     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
6988     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
6989 fi
6990
6991
6992 if test "$malloc_trim" = "yes" ; then
6993   echo "CONFIG_MALLOC_TRIM=y" >> $config_host_mak
6994 fi
6995
6996 if test "$avx2_opt" = "yes" ; then
6997   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
6998 fi
6999
7000 if test "$lzo" = "yes" ; then
7001   echo "CONFIG_LZO=y" >> $config_host_mak
7002 fi
7003
7004 if test "$snappy" = "yes" ; then
7005   echo "CONFIG_SNAPPY=y" >> $config_host_mak
7006 fi
7007
7008 if test "$bzip2" = "yes" ; then
7009   echo "CONFIG_BZIP2=y" >> $config_host_mak
7010   echo "BZIP2_LIBS=-lbz2" >> $config_host_mak
7011 fi
7012
7013 if test "$lzfse" = "yes" ; then
7014   echo "CONFIG_LZFSE=y" >> $config_host_mak
7015   echo "LZFSE_LIBS=-llzfse" >> $config_host_mak
7016 fi
7017
7018 if test "$libiscsi" = "yes" ; then
7019   echo "CONFIG_LIBISCSI=m" >> $config_host_mak
7020   echo "LIBISCSI_CFLAGS=$libiscsi_cflags" >> $config_host_mak
7021   echo "LIBISCSI_LIBS=$libiscsi_libs" >> $config_host_mak
7022 fi
7023
7024 if test "$libnfs" = "yes" ; then
7025   echo "CONFIG_LIBNFS=m" >> $config_host_mak
7026   echo "LIBNFS_LIBS=$libnfs_libs" >> $config_host_mak
7027 fi
7028
7029 if test "$seccomp" = "yes"; then
7030   echo "CONFIG_SECCOMP=y" >> $config_host_mak
7031   echo "SECCOMP_CFLAGS=$seccomp_cflags" >> $config_host_mak
7032   echo "SECCOMP_LIBS=$seccomp_libs" >> $config_host_mak
7033 fi
7034
7035 # XXX: suppress that
7036 if [ "$bsd" = "yes" ] ; then
7037   echo "CONFIG_BSD=y" >> $config_host_mak
7038 fi
7039
7040 if test "$localtime_r" = "yes" ; then
7041   echo "CONFIG_LOCALTIME_R=y" >> $config_host_mak
7042 fi
7043 if test "$qom_cast_debug" = "yes" ; then
7044   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
7045 fi
7046 if test "$rbd" = "yes" ; then
7047   echo "CONFIG_RBD=m" >> $config_host_mak
7048   echo "RBD_CFLAGS=$rbd_cflags" >> $config_host_mak
7049   echo "RBD_LIBS=$rbd_libs" >> $config_host_mak
7050 fi
7051
7052 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
7053 if test "$coroutine_pool" = "yes" ; then
7054   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
7055 else
7056   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
7057 fi
7058
7059 if test "$debug_stack_usage" = "yes" ; then
7060   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
7061 fi
7062
7063 if test "$crypto_afalg" = "yes" ; then
7064   echo "CONFIG_AF_ALG=y" >> $config_host_mak
7065 fi
7066
7067 if test "$open_by_handle_at" = "yes" ; then
7068   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
7069 fi
7070
7071 if test "$linux_magic_h" = "yes" ; then
7072   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
7073 fi
7074
7075 if test "$pragma_diagnostic_available" = "yes" ; then
7076   echo "CONFIG_PRAGMA_DIAGNOSTIC_AVAILABLE=y" >> $config_host_mak
7077 fi
7078
7079 if test "$valgrind_h" = "yes" ; then
7080   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
7081 fi
7082
7083 if test "$have_asan_iface_fiber" = "yes" ; then
7084     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
7085 fi
7086
7087 if test "$has_environ" = "yes" ; then
7088   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
7089 fi
7090
7091 if test "$cpuid_h" = "yes" ; then
7092   echo "CONFIG_CPUID_H=y" >> $config_host_mak
7093 fi
7094
7095 if test "$int128" = "yes" ; then
7096   echo "CONFIG_INT128=y" >> $config_host_mak
7097 fi
7098
7099 if test "$atomic128" = "yes" ; then
7100   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
7101 fi
7102
7103 if test "$cmpxchg128" = "yes" ; then
7104   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
7105 fi
7106
7107 if test "$atomic64" = "yes" ; then
7108   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
7109 fi
7110
7111 if test "$vector16" = "yes" ; then
7112   echo "CONFIG_VECTOR16=y" >> $config_host_mak
7113 fi
7114
7115 if test "$getauxval" = "yes" ; then
7116   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
7117 fi
7118
7119 if test "$glusterfs" = "yes" ; then
7120   echo "CONFIG_GLUSTERFS=m" >> $config_host_mak
7121   echo "GLUSTERFS_CFLAGS=$glusterfs_cflags" >> $config_host_mak
7122   echo "GLUSTERFS_LIBS=$glusterfs_libs" >> $config_host_mak
7123 fi
7124
7125 if test "$glusterfs_xlator_opt" = "yes" ; then
7126   echo "CONFIG_GLUSTERFS_XLATOR_OPT=y" >> $config_host_mak
7127 fi
7128
7129 if test "$glusterfs_discard" = "yes" ; then
7130   echo "CONFIG_GLUSTERFS_DISCARD=y" >> $config_host_mak
7131 fi
7132
7133 if test "$glusterfs_fallocate" = "yes" ; then
7134   echo "CONFIG_GLUSTERFS_FALLOCATE=y" >> $config_host_mak
7135 fi
7136
7137 if test "$glusterfs_zerofill" = "yes" ; then
7138   echo "CONFIG_GLUSTERFS_ZEROFILL=y" >> $config_host_mak
7139 fi
7140
7141 if test "$glusterfs_ftruncate_has_stat" = "yes" ; then
7142   echo "CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT=y" >> $config_host_mak
7143 fi
7144
7145 if test "$glusterfs_iocb_has_stat" = "yes" ; then
7146   echo "CONFIG_GLUSTERFS_IOCB_HAS_STAT=y" >> $config_host_mak
7147 fi
7148
7149 if test "$libssh2" = "yes" ; then
7150   echo "CONFIG_LIBSSH2=m" >> $config_host_mak
7151   echo "LIBSSH2_CFLAGS=$libssh2_cflags" >> $config_host_mak
7152   echo "LIBSSH2_LIBS=$libssh2_libs" >> $config_host_mak
7153 fi
7154
7155 if test "$live_block_migration" = "yes" ; then
7156   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
7157 fi
7158
7159 if test "$tpm" = "yes"; then
7160   echo 'CONFIG_TPM=$(CONFIG_SOFTMMU)' >> $config_host_mak
7161   # TPM passthrough support?
7162   if test "$tpm_passthrough" = "yes"; then
7163     echo "CONFIG_TPM_PASSTHROUGH=y" >> $config_host_mak
7164   fi
7165   # TPM emulator support?
7166   if test "$tpm_emulator" = "yes"; then
7167     echo "CONFIG_TPM_EMULATOR=y" >> $config_host_mak
7168   fi
7169 fi
7170
7171 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
7172 if have_backend "nop"; then
7173   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
7174 fi
7175 if have_backend "simple"; then
7176   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
7177   # Set the appropriate trace file.
7178   trace_file="\"$trace_file-\" FMT_pid"
7179 fi
7180 if have_backend "log"; then
7181   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
7182 fi
7183 if have_backend "ust"; then
7184   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
7185 fi
7186 if have_backend "dtrace"; then
7187   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
7188   if test "$trace_backend_stap" = "yes" ; then
7189     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
7190   fi
7191 fi
7192 if have_backend "ftrace"; then
7193   if test "$linux" = "yes" ; then
7194     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
7195   else
7196     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
7197   fi
7198 fi
7199 if have_backend "syslog"; then
7200   if test "$posix_syslog" = "yes" ; then
7201     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
7202   else
7203     feature_not_found "syslog(trace backend)" "syslog not available"
7204   fi
7205 fi
7206 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
7207
7208 if test "$rdma" = "yes" ; then
7209   echo "CONFIG_RDMA=y" >> $config_host_mak
7210   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
7211 fi
7212
7213 if test "$pvrdma" = "yes" ; then
7214   echo "CONFIG_PVRDMA=y" >> $config_host_mak
7215 fi
7216
7217 if test "$have_rtnetlink" = "yes" ; then
7218   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
7219 fi
7220
7221 if test "$libxml2" = "yes" ; then
7222   echo "CONFIG_LIBXML2=y" >> $config_host_mak
7223   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
7224   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
7225 fi
7226
7227 if test "$replication" = "yes" ; then
7228   echo "CONFIG_REPLICATION=y" >> $config_host_mak
7229 fi
7230
7231 if test "$have_af_vsock" = "yes" ; then
7232   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
7233 fi
7234
7235 if test "$have_sysmacros" = "yes" ; then
7236   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
7237 fi
7238
7239 if test "$have_static_assert" = "yes" ; then
7240   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
7241 fi
7242
7243 if test "$have_utmpx" = "yes" ; then
7244   echo "HAVE_UTMPX=y" >> $config_host_mak
7245 fi
7246 if test "$have_getrandom" = "yes" ; then
7247   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
7248 fi
7249 if test "$ivshmem" = "yes" ; then
7250   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
7251 fi
7252 if test "$capstone" != "no" ; then
7253   echo "CONFIG_CAPSTONE=y" >> $config_host_mak
7254 fi
7255 if test "$debug_mutex" = "yes" ; then
7256   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
7257 fi
7258
7259 # Hold two types of flag:
7260 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
7261 #                                     a thread we have a handle to
7262 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
7263 #                                     platform
7264 if test "$pthread_setname_np_w_tid" = "yes" ; then
7265   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
7266   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
7267 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
7268   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
7269   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
7270 fi
7271
7272 if test "$vxhs" = "yes" ; then
7273   echo "CONFIG_VXHS=y" >> $config_host_mak
7274   echo "VXHS_LIBS=$vxhs_libs" >> $config_host_mak
7275 fi
7276
7277 if test "$libpmem" = "yes" ; then
7278   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
7279 fi
7280
7281 if test "$bochs" = "yes" ; then
7282   echo "CONFIG_BOCHS=y" >> $config_host_mak
7283 fi
7284 if test "$cloop" = "yes" ; then
7285   echo "CONFIG_CLOOP=y" >> $config_host_mak
7286 fi
7287 if test "$dmg" = "yes" ; then
7288   echo "CONFIG_DMG=y" >> $config_host_mak
7289 fi
7290 if test "$qcow1" = "yes" ; then
7291   echo "CONFIG_QCOW1=y" >> $config_host_mak
7292 fi
7293 if test "$vdi" = "yes" ; then
7294   echo "CONFIG_VDI=y" >> $config_host_mak
7295 fi
7296 if test "$vvfat" = "yes" ; then
7297   echo "CONFIG_VVFAT=y" >> $config_host_mak
7298 fi
7299 if test "$qed" = "yes" ; then
7300   echo "CONFIG_QED=y" >> $config_host_mak
7301 fi
7302 if test "$parallels" = "yes" ; then
7303   echo "CONFIG_PARALLELS=y" >> $config_host_mak
7304 fi
7305 if test "$sheepdog" = "yes" ; then
7306   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
7307 fi
7308
7309 if test "$tcg_interpreter" = "yes"; then
7310   QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/tci $QEMU_INCLUDES"
7311 elif test "$ARCH" = "sparc64" ; then
7312   QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/sparc $QEMU_INCLUDES"
7313 elif test "$ARCH" = "s390x" ; then
7314   QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/s390 $QEMU_INCLUDES"
7315 elif test "$ARCH" = "x86_64" || test "$ARCH" = "x32" ; then
7316   QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/i386 $QEMU_INCLUDES"
7317 elif test "$ARCH" = "ppc64" ; then
7318   QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/ppc $QEMU_INCLUDES"
7319 elif test "$ARCH" = "riscv32" || test "$ARCH" = "riscv64" ; then
7320   QEMU_INCLUDES="-I\$(SRC_PATH)/tcg/riscv $QEMU_INCLUDES"
7321 else
7322   QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/\$(ARCH) $QEMU_INCLUDES"
7323 fi
7324 QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg $QEMU_INCLUDES"
7325
7326 echo "TOOLS=$tools" >> $config_host_mak
7327 echo "ROMS=$roms" >> $config_host_mak
7328 echo "MAKE=$make" >> $config_host_mak
7329 echo "INSTALL=$install" >> $config_host_mak
7330 echo "INSTALL_DIR=$install -d -m 0755" >> $config_host_mak
7331 echo "INSTALL_DATA=$install -c -m 0644" >> $config_host_mak
7332 echo "INSTALL_PROG=$install -c -m 0755" >> $config_host_mak
7333 echo "INSTALL_LIB=$install -c -m 0644" >> $config_host_mak
7334 echo "PYTHON=$python" >> $config_host_mak
7335 echo "PYTHON_VERSION=$python_version" >> $config_host_mak
7336 echo "CC=$cc" >> $config_host_mak
7337 if $iasl -h > /dev/null 2>&1; then
7338   echo "IASL=$iasl" >> $config_host_mak
7339 fi
7340 echo "HOST_CC=$host_cc" >> $config_host_mak
7341 echo "CXX=$cxx" >> $config_host_mak
7342 echo "OBJCC=$objcc" >> $config_host_mak
7343 echo "AR=$ar" >> $config_host_mak
7344 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
7345 echo "AS=$as" >> $config_host_mak
7346 echo "CCAS=$ccas" >> $config_host_mak
7347 echo "CPP=$cpp" >> $config_host_mak
7348 echo "OBJCOPY=$objcopy" >> $config_host_mak
7349 echo "LD=$ld" >> $config_host_mak
7350 echo "RANLIB=$ranlib" >> $config_host_mak
7351 echo "NM=$nm" >> $config_host_mak
7352 echo "WINDRES=$windres" >> $config_host_mak
7353 echo "CFLAGS=$CFLAGS" >> $config_host_mak
7354 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
7355 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
7356 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
7357 echo "QEMU_INCLUDES=$QEMU_INCLUDES" >> $config_host_mak
7358 if test "$sparse" = "yes" ; then
7359   echo "CC           := REAL_CC=\"\$(CC)\" cgcc"       >> $config_host_mak
7360   echo "CPP          := REAL_CC=\"\$(CPP)\" cgcc"      >> $config_host_mak
7361   echo "CXX          := REAL_CC=\"\$(CXX)\" cgcc"      >> $config_host_mak
7362   echo "HOST_CC      := REAL_CC=\"\$(HOST_CC)\" cgcc"  >> $config_host_mak
7363   echo "QEMU_CFLAGS  += -Wbitwise -Wno-transparent-union -Wno-old-initializer -Wno-non-pointer-null" >> $config_host_mak
7364 fi
7365 if test "$cross_prefix" != ""; then
7366   echo "AUTOCONF_HOST := --host=${cross_prefix%-}"     >> $config_host_mak
7367 else
7368   echo "AUTOCONF_HOST := "                             >> $config_host_mak
7369 fi
7370 echo "LDFLAGS=$LDFLAGS" >> $config_host_mak
7371 echo "LDFLAGS_NOPIE=$LDFLAGS_NOPIE" >> $config_host_mak
7372 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
7373 echo "LD_REL_FLAGS=$LD_REL_FLAGS" >> $config_host_mak
7374 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
7375 echo "LIBS+=$LIBS" >> $config_host_mak
7376 echo "LIBS_TOOLS+=$libs_tools" >> $config_host_mak
7377 echo "PTHREAD_LIB=$PTHREAD_LIB" >> $config_host_mak
7378 echo "EXESUF=$EXESUF" >> $config_host_mak
7379 echo "DSOSUF=$DSOSUF" >> $config_host_mak
7380 echo "LDFLAGS_SHARED=$LDFLAGS_SHARED" >> $config_host_mak
7381 echo "LIBS_QGA+=$libs_qga" >> $config_host_mak
7382 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
7383 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
7384 echo "POD2MAN=$POD2MAN" >> $config_host_mak
7385 if test "$gcov" = "yes" ; then
7386   echo "CONFIG_GCOV=y" >> $config_host_mak
7387   echo "GCOV=$gcov_tool" >> $config_host_mak
7388 fi
7389
7390 if test "$docker" != "no"; then
7391     echo "HAVE_USER_DOCKER=y" >> $config_host_mak
7392 fi
7393
7394 if test "$libudev" != "no"; then
7395     echo "CONFIG_LIBUDEV=y" >> $config_host_mak
7396     echo "LIBUDEV_LIBS=$libudev_libs" >> $config_host_mak
7397 fi
7398
7399 # use included Linux headers
7400 if test "$linux" = "yes" ; then
7401   mkdir -p linux-headers
7402   case "$cpu" in
7403   i386|x86_64|x32)
7404     linux_arch=x86
7405     ;;
7406   ppc|ppc64|ppc64le)
7407     linux_arch=powerpc
7408     ;;
7409   s390x)
7410     linux_arch=s390
7411     ;;
7412   aarch64)
7413     linux_arch=arm64
7414     ;;
7415   mips64)
7416     linux_arch=mips
7417     ;;
7418   *)
7419     # For most CPUs the kernel architecture name and QEMU CPU name match.
7420     linux_arch="$cpu"
7421     ;;
7422   esac
7423     # For non-KVM architectures we will not have asm headers
7424     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
7425       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
7426     fi
7427 fi
7428
7429 for target in $target_list; do
7430 target_dir="$target"
7431 config_target_mak=$target_dir/config-target.mak
7432 target_name=$(echo $target | cut -d '-' -f 1)
7433 target_bigendian="no"
7434
7435 case "$target_name" in
7436   armeb|aarch64_be|hppa|lm32|m68k|microblaze|mips|mipsn32|mips64|moxie|or1k|ppc|ppc64|ppc64abi32|s390x|sh4eb|sparc|sparc64|sparc32plus|xtensaeb)
7437   target_bigendian=yes
7438   ;;
7439 esac
7440 target_softmmu="no"
7441 target_user_only="no"
7442 target_linux_user="no"
7443 target_bsd_user="no"
7444 case "$target" in
7445   ${target_name}-softmmu)
7446     target_softmmu="yes"
7447     ;;
7448   ${target_name}-linux-user)
7449     target_user_only="yes"
7450     target_linux_user="yes"
7451     ;;
7452   ${target_name}-bsd-user)
7453     target_user_only="yes"
7454     target_bsd_user="yes"
7455     ;;
7456   *)
7457     error_exit "Target '$target' not recognised"
7458     exit 1
7459     ;;
7460 esac
7461
7462 target_compiler=""
7463 target_compiler_static=""
7464 target_compiler_cflags=""
7465
7466 mkdir -p $target_dir
7467 echo "# Automatically generated by configure - do not modify" > $config_target_mak
7468
7469 bflt="no"
7470 mttcg="no"
7471 interp_prefix1=$(echo "$interp_prefix" | sed "s/%M/$target_name/g")
7472 gdb_xml_files=""
7473
7474 TARGET_ARCH="$target_name"
7475 TARGET_BASE_ARCH=""
7476 TARGET_ABI_DIR=""
7477
7478 case "$target_name" in
7479   i386)
7480     mttcg="yes"
7481         gdb_xml_files="i386-32bit.xml"
7482     target_compiler=$cross_cc_i386
7483     target_compiler_cflags=$cross_cc_ccflags_i386
7484   ;;
7485   x86_64)
7486     TARGET_BASE_ARCH=i386
7487     mttcg="yes"
7488         gdb_xml_files="i386-64bit.xml"
7489     target_compiler=$cross_cc_x86_64
7490   ;;
7491   alpha)
7492     mttcg="yes"
7493     target_compiler=$cross_cc_alpha
7494   ;;
7495   arm|armeb)
7496     TARGET_ARCH=arm
7497     bflt="yes"
7498     mttcg="yes"
7499     gdb_xml_files="arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml"
7500     target_compiler=$cross_cc_arm
7501     eval "target_compiler_cflags=\$cross_cc_cflags_${target_name}"
7502   ;;
7503   aarch64|aarch64_be)
7504     TARGET_ARCH=aarch64
7505     TARGET_BASE_ARCH=arm
7506     bflt="yes"
7507     mttcg="yes"
7508     gdb_xml_files="aarch64-core.xml aarch64-fpu.xml arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml"
7509     target_compiler=$cross_cc_aarch64
7510     eval "target_compiler_cflags=\$cross_cc_cflags_${target_name}"
7511   ;;
7512   cris)
7513     target_compiler=$cross_cc_cris
7514   ;;
7515   hppa)
7516     mttcg="yes"
7517     target_compiler=$cross_cc_hppa
7518   ;;
7519   lm32)
7520     target_compiler=$cross_cc_lm32
7521   ;;
7522   m68k)
7523     bflt="yes"
7524     gdb_xml_files="cf-core.xml cf-fp.xml m68k-fp.xml"
7525     target_compiler=$cross_cc_m68k
7526   ;;
7527   microblaze|microblazeel)
7528     TARGET_ARCH=microblaze
7529     bflt="yes"
7530     echo "TARGET_ABI32=y" >> $config_target_mak
7531     target_compiler=$cross_cc_microblaze
7532   ;;
7533   mips|mipsel)
7534     mttcg="yes"
7535     TARGET_ARCH=mips
7536     target_compiler=$cross_cc_mips
7537     echo "TARGET_ABI_MIPSO32=y" >> $config_target_mak
7538   ;;
7539   mipsn32|mipsn32el)
7540     mttcg="yes"
7541     TARGET_ARCH=mips64
7542     TARGET_BASE_ARCH=mips
7543     target_compiler=$cross_cc_mipsn32
7544     echo "TARGET_ABI_MIPSN32=y" >> $config_target_mak
7545     echo "TARGET_ABI32=y" >> $config_target_mak
7546   ;;
7547   mips64|mips64el)
7548     mttcg="yes"
7549     TARGET_ARCH=mips64
7550     TARGET_BASE_ARCH=mips
7551     target_compiler=$cross_cc_mips64
7552     echo "TARGET_ABI_MIPSN64=y" >> $config_target_mak
7553   ;;
7554   moxie)
7555     target_compiler=$cross_cc_moxie
7556   ;;
7557   nios2)
7558     target_compiler=$cross_cc_nios2
7559   ;;
7560   or1k)
7561     target_compiler=$cross_cc_or1k
7562     TARGET_ARCH=openrisc
7563     TARGET_BASE_ARCH=openrisc
7564   ;;
7565   ppc)
7566     gdb_xml_files="power-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
7567     target_compiler=$cross_cc_ppc
7568     target_compiler_cflags="$cross_cc_cflags_ppc"
7569   ;;
7570   ppc64)
7571     TARGET_BASE_ARCH=ppc
7572     TARGET_ABI_DIR=ppc
7573     mttcg=yes
7574     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7575     target_compiler=$cross_cc_ppc64
7576     target_compiler_cflags="$cross_cc_cflags_ppc64"
7577   ;;
7578   ppc64le)
7579     TARGET_ARCH=ppc64
7580     TARGET_BASE_ARCH=ppc
7581     TARGET_ABI_DIR=ppc
7582     mttcg=yes
7583     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7584     target_compiler=$cross_cc_ppc64le
7585   ;;
7586   ppc64abi32)
7587     TARGET_ARCH=ppc64
7588     TARGET_BASE_ARCH=ppc
7589     TARGET_ABI_DIR=ppc
7590     echo "TARGET_ABI32=y" >> $config_target_mak
7591     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7592     target_compiler=$cross_cc_ppc64abi32
7593   ;;
7594   riscv32)
7595     TARGET_BASE_ARCH=riscv
7596     TARGET_ABI_DIR=riscv
7597     mttcg=yes
7598     gdb_xml_files="riscv-32bit-cpu.xml riscv-32bit-fpu.xml riscv-32bit-csr.xml"
7599     target_compiler=$cross_cc_riscv32
7600   ;;
7601   riscv64)
7602     TARGET_BASE_ARCH=riscv
7603     TARGET_ABI_DIR=riscv
7604     mttcg=yes
7605     gdb_xml_files="riscv-64bit-cpu.xml riscv-64bit-fpu.xml riscv-64bit-csr.xml"
7606     target_compiler=$cross_cc_riscv64
7607   ;;
7608   sh4|sh4eb)
7609     TARGET_ARCH=sh4
7610     bflt="yes"
7611     target_compiler=$cross_cc_sh4
7612   ;;
7613   sparc)
7614     target_compiler=$cross_cc_sparc
7615   ;;
7616   sparc64)
7617     TARGET_BASE_ARCH=sparc
7618     target_compiler=$cross_cc_sparc64
7619   ;;
7620   sparc32plus)
7621     TARGET_ARCH=sparc64
7622     TARGET_BASE_ARCH=sparc
7623     TARGET_ABI_DIR=sparc
7624     target_compiler=$cross_cc_sparc32plus
7625     echo "TARGET_ABI32=y" >> $config_target_mak
7626   ;;
7627   s390x)
7628     mttcg=yes
7629     gdb_xml_files="s390x-core64.xml s390-acr.xml s390-fpr.xml s390-vx.xml s390-cr.xml s390-virt.xml s390-gs.xml"
7630     target_compiler=$cross_cc_s390x
7631   ;;
7632   tilegx)
7633     target_compiler=$cross_cc_tilegx
7634   ;;
7635   tricore)
7636     target_compiler=$cross_cc_tricore
7637   ;;
7638   unicore32)
7639     target_compiler=$cross_cc_unicore32
7640   ;;
7641   xtensa|xtensaeb)
7642     TARGET_ARCH=xtensa
7643     bflt="yes"
7644     mttcg="yes"
7645     target_compiler=$cross_cc_xtensa
7646   ;;
7647   *)
7648     error_exit "Unsupported target CPU"
7649   ;;
7650 esac
7651 # TARGET_BASE_ARCH needs to be defined after TARGET_ARCH
7652 if [ "$TARGET_BASE_ARCH" = "" ]; then
7653   TARGET_BASE_ARCH=$TARGET_ARCH
7654 fi
7655
7656 # Do we have a cross compiler for this target?
7657 if has $target_compiler; then
7658
7659     write_c_skeleton
7660
7661     if ! do_compiler "$target_compiler" $target_compiler_cflags -o $TMPE $TMPC -static ; then
7662         # For host systems we might get away with building without -static
7663         if ! do_compiler "$target_compiler" $target_compiler_cflags -o $TMPE $TMPC ; then
7664             target_compiler=""
7665         else
7666             enabled_cross_compilers="${enabled_cross_compilers} '${target_compiler}'"
7667             target_compiler_static="n"
7668         fi
7669     else
7670         enabled_cross_compilers="${enabled_cross_compilers} '${target_compiler}'"
7671         target_compiler_static="y"
7672     fi
7673 else
7674     target_compiler=""
7675 fi
7676
7677 symlink "$source_path/Makefile.target" "$target_dir/Makefile"
7678
7679 upper() {
7680     echo "$@"| LC_ALL=C tr '[a-z]' '[A-Z]'
7681 }
7682
7683 target_arch_name="$(upper $TARGET_ARCH)"
7684 echo "TARGET_$target_arch_name=y" >> $config_target_mak
7685 echo "TARGET_NAME=$target_name" >> $config_target_mak
7686 echo "TARGET_BASE_ARCH=$TARGET_BASE_ARCH" >> $config_target_mak
7687 if [ "$TARGET_ABI_DIR" = "" ]; then
7688   TARGET_ABI_DIR=$TARGET_ARCH
7689 fi
7690 echo "TARGET_ABI_DIR=$TARGET_ABI_DIR" >> $config_target_mak
7691 if [ "$HOST_VARIANT_DIR" != "" ]; then
7692     echo "HOST_VARIANT_DIR=$HOST_VARIANT_DIR" >> $config_target_mak
7693 fi
7694
7695 if supported_xen_target $target; then
7696     echo "CONFIG_XEN=y" >> $config_target_mak
7697     echo "$target/config-devices.mak: CONFIG_XEN=y" >> $config_host_mak
7698     if test "$xen_pci_passthrough" = yes; then
7699         echo "CONFIG_XEN_PCI_PASSTHROUGH=y" >> "$config_target_mak"
7700     fi
7701 else
7702     echo "$target/config-devices.mak: CONFIG_XEN=n" >> $config_host_mak
7703 fi
7704 if supported_kvm_target $target; then
7705     echo "CONFIG_KVM=y" >> $config_target_mak
7706     echo "$target/config-devices.mak: CONFIG_KVM=y" >> $config_host_mak
7707 else
7708     echo "$target/config-devices.mak: CONFIG_KVM=n" >> $config_host_mak
7709 fi
7710 if supported_hax_target $target; then
7711     echo "CONFIG_HAX=y" >> $config_target_mak
7712 fi
7713 if supported_hvf_target $target; then
7714     echo "CONFIG_HVF=y" >> $config_target_mak
7715 fi
7716 if supported_whpx_target $target; then
7717     echo "CONFIG_WHPX=y" >> $config_target_mak
7718 fi
7719 if test "$target_bigendian" = "yes" ; then
7720   echo "TARGET_WORDS_BIGENDIAN=y" >> $config_target_mak
7721 fi
7722 if test "$target_softmmu" = "yes" ; then
7723   echo "CONFIG_SOFTMMU=y" >> $config_target_mak
7724   if test "$mttcg" = "yes" ; then
7725     echo "TARGET_SUPPORTS_MTTCG=y" >> $config_target_mak
7726   fi
7727 fi
7728 if test "$target_user_only" = "yes" ; then
7729   echo "CONFIG_USER_ONLY=y" >> $config_target_mak
7730   echo "CONFIG_QEMU_INTERP_PREFIX=\"$interp_prefix1\"" >> $config_target_mak
7731 fi
7732 if test "$target_linux_user" = "yes" ; then
7733   echo "CONFIG_LINUX_USER=y" >> $config_target_mak
7734 fi
7735 list=""
7736 if test ! -z "$gdb_xml_files" ; then
7737   for x in $gdb_xml_files; do
7738     list="$list $source_path/gdb-xml/$x"
7739   done
7740   echo "TARGET_XML_FILES=$list" >> $config_target_mak
7741 fi
7742
7743 if test "$target_user_only" = "yes" && test "$bflt" = "yes"; then
7744   echo "TARGET_HAS_BFLT=y" >> $config_target_mak
7745 fi
7746 if test "$target_bsd_user" = "yes" ; then
7747   echo "CONFIG_BSD_USER=y" >> $config_target_mak
7748 fi
7749
7750 if test -n "$target_compiler"; then
7751   echo "CROSS_CC_GUEST=\"$target_compiler\"" >> $config_target_mak
7752
7753   if test -n "$target_compiler_static"; then
7754       echo "CROSS_CC_GUEST_STATIC=$target_compiler_static" >> $config_target_mak
7755   fi
7756
7757   if test -n "$target_compiler_cflags"; then
7758       echo "CROSS_CC_GUEST_CFLAGS=$target_compiler_cflags" >> $config_target_mak
7759   fi
7760 fi
7761
7762
7763 # generate QEMU_CFLAGS/LDFLAGS for targets
7764
7765 cflags=""
7766 ldflags=""
7767
7768 disas_config() {
7769   echo "CONFIG_${1}_DIS=y" >> $config_target_mak
7770   echo "CONFIG_${1}_DIS=y" >> config-all-disas.mak
7771 }
7772
7773 for i in $ARCH $TARGET_BASE_ARCH ; do
7774   case "$i" in
7775   alpha)
7776     disas_config "ALPHA"
7777   ;;
7778   aarch64)
7779     if test -n "${cxx}"; then
7780       disas_config "ARM_A64"
7781     fi
7782   ;;
7783   arm)
7784     disas_config "ARM"
7785     if test -n "${cxx}"; then
7786       disas_config "ARM_A64"
7787     fi
7788   ;;
7789   cris)
7790     disas_config "CRIS"
7791   ;;
7792   hppa)
7793     disas_config "HPPA"
7794   ;;
7795   i386|x86_64|x32)
7796     disas_config "I386"
7797   ;;
7798   lm32)
7799     disas_config "LM32"
7800   ;;
7801   m68k)
7802     disas_config "M68K"
7803   ;;
7804   microblaze*)
7805     disas_config "MICROBLAZE"
7806   ;;
7807   mips*)
7808     disas_config "MIPS"
7809     if test -n "${cxx}"; then
7810       disas_config "NANOMIPS"
7811     fi
7812   ;;
7813   moxie*)
7814     disas_config "MOXIE"
7815   ;;
7816   nios2)
7817     disas_config "NIOS2"
7818   ;;
7819   or1k)
7820     disas_config "OPENRISC"
7821   ;;
7822   ppc*)
7823     disas_config "PPC"
7824   ;;
7825   riscv*)
7826     disas_config "RISCV"
7827   ;;
7828   s390*)
7829     disas_config "S390"
7830   ;;
7831   sh4)
7832     disas_config "SH4"
7833   ;;
7834   sparc*)
7835     disas_config "SPARC"
7836   ;;
7837   xtensa*)
7838     disas_config "XTENSA"
7839   ;;
7840   esac
7841 done
7842 if test "$tcg_interpreter" = "yes" ; then
7843   disas_config "TCI"
7844 fi
7845
7846 case "$ARCH" in
7847 alpha)
7848   # Ensure there's only a single GP
7849   cflags="-msmall-data $cflags"
7850 ;;
7851 esac
7852
7853 if test "$gprof" = "yes" ; then
7854   echo "TARGET_GPROF=y" >> $config_target_mak
7855   if test "$target_linux_user" = "yes" ; then
7856     cflags="-p $cflags"
7857     ldflags="-p $ldflags"
7858   fi
7859   if test "$target_softmmu" = "yes" ; then
7860     ldflags="-p $ldflags"
7861     echo "GPROF_CFLAGS=-p" >> $config_target_mak
7862   fi
7863 fi
7864
7865 if test "$target_linux_user" = "yes" || test "$target_bsd_user" = "yes" ; then
7866   ldflags="$ldflags $textseg_ldflags"
7867 fi
7868
7869 # Newer kernels on s390 check for an S390_PGSTE program header and
7870 # enable the pgste page table extensions in that case. This makes
7871 # the vm.allocate_pgste sysctl unnecessary. We enable this program
7872 # header if
7873 #  - we build on s390x
7874 #  - we build the system emulation for s390x (qemu-system-s390x)
7875 #  - KVM is enabled
7876 #  - the linker supports --s390-pgste
7877 if test "$TARGET_ARCH" = "s390x" && test "$target_softmmu" = "yes" && \
7878         test "$ARCH" = "s390x" && test "$kvm" = "yes"; then
7879     if ld_has --s390-pgste ; then
7880         ldflags="-Wl,--s390-pgste $ldflags"
7881     fi
7882 fi
7883
7884 echo "LDFLAGS+=$ldflags" >> $config_target_mak
7885 echo "QEMU_CFLAGS+=$cflags" >> $config_target_mak
7886
7887 done # for target in $targets
7888
7889 echo "PIXMAN_CFLAGS=$pixman_cflags" >> $config_host_mak
7890 echo "PIXMAN_LIBS=$pixman_libs" >> $config_host_mak
7891
7892 if test -n "$enabled_cross_compilers"; then
7893     echo
7894     echo "NOTE: cross-compilers enabled: $enabled_cross_compilers"
7895 fi
7896
7897 if [ "$fdt" = "git" ]; then
7898   echo "config-host.h: subdir-dtc" >> $config_host_mak
7899 fi
7900 if [ "$capstone" = "git" -o "$capstone" = "internal" ]; then
7901   echo "config-host.h: subdir-capstone" >> $config_host_mak
7902 fi
7903 if test -n "$LIBCAPSTONE"; then
7904   echo "LIBCAPSTONE=$LIBCAPSTONE" >> $config_host_mak
7905 fi
7906
7907 if test "$numa" = "yes"; then
7908   echo "CONFIG_NUMA=y" >> $config_host_mak
7909 fi
7910
7911 if test "$ccache_cpp2" = "yes"; then
7912   echo "export CCACHE_CPP2=y" >> $config_host_mak
7913 fi
7914
7915 # If we're using a separate build tree, set it up now.
7916 # DIRS are directories which we simply mkdir in the build tree;
7917 # LINKS are things to symlink back into the source tree
7918 # (these can be both files and directories).
7919 # Caution: do not add files or directories here using wildcards. This
7920 # will result in problems later if a new file matching the wildcard is
7921 # added to the source tree -- nothing will cause configure to be rerun
7922 # so the build tree will be missing the link back to the new file, and
7923 # tests might fail. Prefer to keep the relevant files in their own
7924 # directory and symlink the directory instead.
7925 DIRS="tests tests/tcg tests/tcg/cris tests/tcg/lm32 tests/libqos tests/qapi-schema tests/tcg/xtensa tests/qemu-iotests tests/vm"
7926 DIRS="$DIRS tests/fp tests/qgraph"
7927 DIRS="$DIRS docs docs/interop fsdev scsi"
7928 DIRS="$DIRS pc-bios/optionrom pc-bios/spapr-rtas pc-bios/s390-ccw"
7929 DIRS="$DIRS roms/seabios roms/vgabios"
7930 LINKS="Makefile tests/tcg/Makefile"
7931 LINKS="$LINKS tests/tcg/cris/Makefile tests/tcg/cris/.gdbinit"
7932 LINKS="$LINKS tests/tcg/lm32/Makefile tests/tcg/xtensa/Makefile po/Makefile"
7933 LINKS="$LINKS tests/fp/Makefile"
7934 LINKS="$LINKS pc-bios/optionrom/Makefile pc-bios/keymaps"
7935 LINKS="$LINKS pc-bios/spapr-rtas/Makefile"
7936 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
7937 LINKS="$LINKS roms/seabios/Makefile roms/vgabios/Makefile"
7938 LINKS="$LINKS pc-bios/qemu-icon.bmp"
7939 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
7940 LINKS="$LINKS tests/acceptance tests/data"
7941 LINKS="$LINKS tests/qemu-iotests/check"
7942 LINKS="$LINKS python"
7943 for bios_file in \
7944     $source_path/pc-bios/*.bin \
7945     $source_path/pc-bios/*.lid \
7946     $source_path/pc-bios/*.rom \
7947     $source_path/pc-bios/*.dtb \
7948     $source_path/pc-bios/*.img \
7949     $source_path/pc-bios/openbios-* \
7950     $source_path/pc-bios/u-boot.* \
7951     $source_path/pc-bios/edk2-*.fd.bz2 \
7952     $source_path/pc-bios/palcode-*
7953 do
7954     LINKS="$LINKS pc-bios/$(basename $bios_file)"
7955 done
7956 mkdir -p $DIRS
7957 for f in $LINKS ; do
7958     if [ -e "$source_path/$f" ] && [ "$pwd_is_source_path" != "y" ]; then
7959         symlink "$source_path/$f" "$f"
7960     fi
7961 done
7962
7963 # temporary config to build submodules
7964 for rom in seabios vgabios ; do
7965     config_mak=roms/$rom/config.mak
7966     echo "# Automatically generated by configure - do not modify" > $config_mak
7967     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
7968     echo "AS=$as" >> $config_mak
7969     echo "CCAS=$ccas" >> $config_mak
7970     echo "CC=$cc" >> $config_mak
7971     echo "BCC=bcc" >> $config_mak
7972     echo "CPP=$cpp" >> $config_mak
7973     echo "OBJCOPY=objcopy" >> $config_mak
7974     echo "IASL=$iasl" >> $config_mak
7975     echo "LD=$ld" >> $config_mak
7976     echo "RANLIB=$ranlib" >> $config_mak
7977 done
7978
7979 # set up qemu-iotests in this build directory
7980 iotests_common_env="tests/qemu-iotests/common.env"
7981
7982 echo "# Automatically generated by configure - do not modify" > "$iotests_common_env"
7983 echo >> "$iotests_common_env"
7984 echo "export PYTHON='$python'" >> "$iotests_common_env"
7985
7986 # Save the configure command line for later reuse.
7987 cat <<EOD >config.status
7988 #!/bin/sh
7989 # Generated by configure.
7990 # Run this file to recreate the current configuration.
7991 # Compiler output produced by configure, useful for debugging
7992 # configure, is in config.log if it exists.
7993 EOD
7994
7995 preserve_env() {
7996     envname=$1
7997
7998     eval envval=\$$envname
7999
8000     if test -n "$envval"
8001     then
8002         echo "$envname='$envval'" >> config.status
8003         echo "export $envname" >> config.status
8004     else
8005         echo "unset $envname" >> config.status
8006     fi
8007 }
8008
8009 # Preserve various env variables that influence what
8010 # features/build target configure will detect
8011 preserve_env AR
8012 preserve_env AS
8013 preserve_env CC
8014 preserve_env CPP
8015 preserve_env CXX
8016 preserve_env INSTALL
8017 preserve_env LD
8018 preserve_env LD_LIBRARY_PATH
8019 preserve_env LIBTOOL
8020 preserve_env MAKE
8021 preserve_env NM
8022 preserve_env OBJCOPY
8023 preserve_env PATH
8024 preserve_env PKG_CONFIG
8025 preserve_env PKG_CONFIG_LIBDIR
8026 preserve_env PKG_CONFIG_PATH
8027 preserve_env PYTHON
8028 preserve_env SDL_CONFIG
8029 preserve_env SDL2_CONFIG
8030 preserve_env SMBD
8031 preserve_env STRIP
8032 preserve_env WINDRES
8033
8034 printf "exec" >>config.status
8035 printf " '%s'" "$0" "$@" >>config.status
8036 echo ' "$@"' >>config.status
8037 chmod +x config.status
8038
8039 rm -r "$TMPDIR1"