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 # make source path absolute
  15 source_path=$(cd "$(dirname -- "$0")"; pwd)
  16
  17 if test "$PWD" = "$source_path"
  18 then
  19     echo "Using './build' as the directory for build output"
  20
  21     MARKER=build/auto-created-by-configure
  22
  23     if test -e build
  24     then
  25         if test -f $MARKER
  26         then
  27            rm -rf build
  28         else
  29             echo "ERROR: ./build dir already exists and was not previously created by configure"
  30             exit 1
  31         fi
  32     fi
  33
  34     mkdir build
  35     touch $MARKER
  36
  37     cat > GNUmakefile <<'EOF'
  38 # This file is auto-generated by configure to support in-source tree
  39 # 'make' command invocation
  40
  41 ifeq ($(MAKECMDGOALS),)
  42 recurse: all
  43 endif
  44
  45 .NOTPARALLEL: %
  46 %: force
  47         @echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
  48         @$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
  49         @if test "$(MAKECMDGOALS)" = "distclean" && \
  50             test -e build/auto-created-by-configure ; \
  51         then \
  52             rm -rf build GNUmakefile ; \
  53         fi
  54 force: ;
  55 .PHONY: force
  56 GNUmakefile: ;
  57
  58 EOF
  59     cd build
  60     exec $source_path/configure "$@"
  61 fi
  62
  63 # Temporary directory used for files created while
  64 # configure runs. Since it is in the build directory
  65 # we can safely blow away any previous version of it
  66 # (and we need not jump through hoops to try to delete
  67 # it when configure exits.)
  68 TMPDIR1="config-temp"
  69 rm -rf "${TMPDIR1}"
  70 mkdir -p "${TMPDIR1}"
  71 if [ $? -ne 0 ]; then
  72     echo "ERROR: failed to create temporary directory"
  73     exit 1
  74 fi
  75
  76 TMPB="qemu-conf"
  77 TMPC="${TMPDIR1}/${TMPB}.c"
  78 TMPO="${TMPDIR1}/${TMPB}.o"
  79 TMPCXX="${TMPDIR1}/${TMPB}.cxx"
  80 TMPE="${TMPDIR1}/${TMPB}.exe"
  81 TMPTXT="${TMPDIR1}/${TMPB}.txt"
  82
  83 rm -f config.log
  84
  85 # Print a helpful header at the top of config.log
  86 echo "# QEMU configure log $(date)" >> config.log
  87 printf "# Configured with:" >> config.log
  88 printf " '%s'" "$0" "$@" >> config.log
  89 echo >> config.log
  90 echo "#" >> config.log
  91
  92 print_error() {
  93     (echo
  94     echo "ERROR: $1"
  95     while test -n "$2"; do
  96         echo "       $2"
  97         shift
  98     done
  99     echo) >&2
 100 }
 101
 102 error_exit() {
 103     print_error "$@"
 104     exit 1
 105 }
 106
 107 do_compiler() {
 108     # Run the compiler, capturing its output to the log. First argument
 109     # is compiler binary to execute.
 110     local compiler="$1"
 111     shift
 112     if test -n "$BASH_VERSION"; then eval '
 113         echo >>config.log "
 114 funcs: ${FUNCNAME[*]}
 115 lines: ${BASH_LINENO[*]}"
 116     '; fi
 117     echo $compiler "$@" >> config.log
 118     $compiler "$@" >> config.log 2>&1 || return $?
 119     # Test passed. If this is an --enable-werror build, rerun
 120     # the test with -Werror and bail out if it fails. This
 121     # makes warning-generating-errors in configure test code
 122     # obvious to developers.
 123     if test "$werror" != "yes"; then
 124         return 0
 125     fi
 126     # Don't bother rerunning the compile if we were already using -Werror
 127     case "$*" in
 128         *-Werror*)
 129            return 0
 130         ;;
 131     esac
 132     echo $compiler -Werror "$@" >> config.log
 133     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 134     error_exit "configure test passed without -Werror but failed with -Werror." \
 135         "This is probably a bug in the configure script. The failing command" \
 136         "will be at the bottom of config.log." \
 137         "You can run configure with --disable-werror to bypass this check."
 138 }
 139
 140 do_cc() {
 141     do_compiler "$cc" "$@"
 142 }
 143
 144 do_cxx() {
 145     do_compiler "$cxx" "$@"
 146 }
 147
 148 # Append $2 to the variable named $1, with space separation
 149 add_to() {
 150     eval $1=\${$1:+\"\$$1 \"}\$2
 151 }
 152
 153 update_cxxflags() {
 154     # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
 155     # options which some versions of GCC's C++ compiler complain about
 156     # because they only make sense for C programs.
 157     QEMU_CXXFLAGS="$QEMU_CXXFLAGS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
 158     CXXFLAGS=$(echo "$CFLAGS" | sed s/-std=gnu99/-std=gnu++11/)
 159     for arg in $QEMU_CFLAGS; do
 160         case $arg in
 161             -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
 162             -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
 163                 ;;
 164             *)
 165                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
 166                 ;;
 167         esac
 168     done
 169 }
 170
 171 compile_object() {
 172   local_cflags="$1"
 173   do_cc $CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 174 }
 175
 176 compile_prog() {
 177   local_cflags="$1"
 178   local_ldflags="$2"
 179   do_cc $CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC $LDFLAGS $QEMU_LDFLAGS $local_ldflags
 180 }
 181
 182 # symbolically link $1 to $2.  Portable version of "ln -sf".
 183 symlink() {
 184   rm -rf "$2"
 185   mkdir -p "$(dirname "$2")"
 186   ln -s "$1" "$2"
 187 }
 188
 189 # check whether a command is available to this shell (may be either an
 190 # executable or a builtin)
 191 has() {
 192     type "$1" >/dev/null 2>&1
 193 }
 194
 195 version_ge () {
 196     local_ver1=`echo $1 | tr . ' '`
 197     local_ver2=`echo $2 | tr . ' '`
 198     while true; do
 199         set x $local_ver1
 200         local_first=${2-0}
 201         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 202         shift ${2:+2}
 203         local_ver1=$*
 204         set x $local_ver2
 205         # the second argument finished, the first must be greater or equal
 206         test $# = 1 && return 0
 207         test $local_first -lt $2 && return 1
 208         test $local_first -gt $2 && return 0
 209         shift ${2:+2}
 210         local_ver2=$*
 211     done
 212 }
 213
 214 have_backend () {
 215     echo "$trace_backends" | grep "$1" >/dev/null
 216 }
 217
 218 glob() {
 219     eval test -z '"${1#'"$2"'}"'
 220 }
 221
 222 supported_hax_target() {
 223     test "$hax" = "yes" || return 1
 224     glob "$1" "*-softmmu" || return 1
 225     case "${1%-softmmu}" in
 226         i386|x86_64)
 227             return 0
 228         ;;
 229     esac
 230     return 1
 231 }
 232
 233 supported_kvm_target() {
 234     test "$kvm" = "yes" || return 1
 235     glob "$1" "*-softmmu" || return 1
 236     case "${1%-softmmu}:$cpu" in
 237         aarch64:aarch64 | \
 238         i386:i386 | i386:x86_64 | i386:x32 | \
 239         x86_64:i386 | x86_64:x86_64 | x86_64:x32 | \
 240         mips:mips | mipsel:mips | mips64:mips | mips64el:mips | \
 241         ppc:ppc | ppc64:ppc | ppc:ppc64 | ppc64:ppc64 | ppc64:ppc64le | \
 242         s390x:s390x)
 243             return 0
 244         ;;
 245     esac
 246     return 1
 247 }
 248
 249 supported_xen_target() {
 250     test "$xen" = "yes" || return 1
 251     glob "$1" "*-softmmu" || return 1
 252     # Only i386 and x86_64 provide the xenpv machine.
 253     case "${1%-softmmu}" in
 254         i386|x86_64)
 255             return 0
 256         ;;
 257     esac
 258     return 1
 259 }
 260
 261 supported_hvf_target() {
 262     test "$hvf" = "yes" || return 1
 263     glob "$1" "*-softmmu" || return 1
 264     case "${1%-softmmu}" in
 265         x86_64)
 266             return 0
 267         ;;
 268     esac
 269     return 1
 270 }
 271
 272 supported_whpx_target() {
 273     test "$whpx" = "yes" || return 1
 274     glob "$1" "*-softmmu" || return 1
 275     case "${1%-softmmu}" in
 276         i386|x86_64)
 277             return 0
 278         ;;
 279     esac
 280     return 1
 281 }
 282
 283 deprecated_targets_list=ppc64abi32-linux-user,tilegx-linux-user,lm32-softmmu,unicore32-softmmu
 284 deprecated_features=""
 285
 286 supported_target() {
 287     case "$1" in
 288         *-softmmu)
 289             ;;
 290         *-linux-user)
 291             if test "$linux" != "yes"; then
 292                 print_error "Target '$target' is only available on a Linux host"
 293                 return 1
 294             fi
 295             ;;
 296         *-bsd-user)
 297             if test "$bsd" != "yes"; then
 298                 print_error "Target '$target' is only available on a BSD host"
 299                 return 1
 300             fi
 301             ;;
 302         *)
 303             print_error "Invalid target name '$target'"
 304             return 1
 305             ;;
 306     esac
 307
 308     # if a deprecated target is enabled we note it here
 309     if echo "$deprecated_targets_list" | grep -q "$1"; then
 310         add_to deprecated_features $1
 311     fi
 312
 313     test "$tcg" = "yes" && return 0
 314     supported_kvm_target "$1" && return 0
 315     supported_xen_target "$1" && return 0
 316     supported_hax_target "$1" && return 0
 317     supported_hvf_target "$1" && return 0
 318     supported_whpx_target "$1" && return 0
 319     print_error "TCG disabled, but hardware accelerator not available for '$target'"
 320     return 1
 321 }
 322
 323
 324 ld_has() {
 325     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 326 }
 327
 328 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 329 then
 330   error_exit "main directory cannot contain spaces nor colons"
 331 fi
 332
 333 # default parameters
 334 cpu=""
 335 iasl="iasl"
 336 interp_prefix="/usr/gnemul/qemu-%M"
 337 static="no"
 338 cross_prefix=""
 339 audio_drv_list=""
 340 block_drv_rw_whitelist=""
 341 block_drv_ro_whitelist=""
 342 host_cc="cc"
 343 audio_win_int=""
 344 libs_qga=""
 345 debug_info="yes"
 346 stack_protector=""
 347 safe_stack=""
 348 use_containers="yes"
 349 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 350
 351 if test -e "$source_path/.git"
 352 then
 353     git_update=yes
 354     git_submodules="ui/keycodemapdb"
 355     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
 356     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
 357 else
 358     git_update=no
 359     git_submodules=""
 360
 361     if ! test -f "$source_path/ui/keycodemapdb/README"
 362     then
 363         echo
 364         echo "ERROR: missing file $source_path/ui/keycodemapdb/README"
 365         echo
 366         echo "This is not a GIT checkout but module content appears to"
 367         echo "be missing. Do not use 'git archive' or GitHub download links"
 368         echo "to acquire QEMU source archives. Non-GIT builds are only"
 369         echo "supported with source archives linked from:"
 370         echo
 371         echo "  https://www.qemu.org/download/#source"
 372         echo
 373         echo "Developers working with GIT can use scripts/archive-source.sh"
 374         echo "if they need to create valid source archives."
 375         echo
 376         exit 1
 377     fi
 378 fi
 379 git="git"
 380
 381 # Don't accept a target_list environment variable.
 382 unset target_list
 383 unset target_list_exclude
 384
 385 # Default value for a variable defining feature "foo".
 386 #  * foo="no"  feature will only be used if --enable-foo arg is given
 387 #  * foo=""    feature will be searched for, and if found, will be used
 388 #              unless --disable-foo is given
 389 #  * foo="yes" this value will only be set by --enable-foo flag.
 390 #              feature will searched for,
 391 #              if not found, configure exits with error
 392 #
 393 # Always add --enable-foo and --disable-foo command line args.
 394 # Distributions want to ensure that several features are compiled in, and it
 395 # is impossible without a --enable-foo that exits if a feature is not found.
 396
 397 brlapi=""
 398 curl=""
 399 curses=""
 400 docs=""
 401 fdt=""
 402 netmap="no"
 403 sdl="auto"
 404 sdl_image="auto"
 405 virtfs=""
 406 mpath=""
 407 vnc="enabled"
 408 sparse="no"
 409 vde=""
 410 vnc_sasl="auto"
 411 vnc_jpeg="auto"
 412 vnc_png="auto"
 413 xkbcommon="auto"
 414 xen=""
 415 xen_ctrl_version=""
 416 xen_pci_passthrough=""
 417 linux_aio=""
 418 linux_io_uring=""
 419 cap_ng=""
 420 attr=""
 421 libattr=""
 422 xfs=""
 423 tcg="yes"
 424 membarrier=""
 425 vhost_net=""
 426 vhost_crypto=""
 427 vhost_scsi=""
 428 vhost_vsock=""
 429 vhost_user=""
 430 vhost_user_fs=""
 431 kvm="no"
 432 hax="no"
 433 hvf="no"
 434 whpx="no"
 435 rdma=""
 436 pvrdma=""
 437 gprof="no"
 438 debug_tcg="no"
 439 debug="no"
 440 sanitizers="no"
 441 tsan="no"
 442 fortify_source=""
 443 strip_opt="yes"
 444 tcg_interpreter="no"
 445 bigendian="no"
 446 mingw32="no"
 447 gcov="no"
 448 EXESUF=""
 449 HOST_DSOSUF=".so"
 450 modules="no"
 451 module_upgrades="no"
 452 prefix="/usr/local"
 453 qemu_suffix="qemu"
 454 slirp=""
 455 oss_lib=""
 456 bsd="no"
 457 linux="no"
 458 solaris="no"
 459 profiler="no"
 460 cocoa="no"
 461 softmmu="yes"
 462 linux_user="no"
 463 bsd_user="no"
 464 blobs="yes"
 465 edk2_blobs="no"
 466 pkgversion=""
 467 pie=""
 468 qom_cast_debug="yes"
 469 trace_backends="log"
 470 trace_file="trace"
 471 spice=""
 472 rbd=""
 473 smartcard=""
 474 u2f="auto"
 475 libusb=""
 476 usb_redir=""
 477 opengl=""
 478 opengl_dmabuf="no"
 479 cpuid_h="no"
 480 avx2_opt=""
 481 capstone=""
 482 lzo=""
 483 snappy=""
 484 bzip2=""
 485 lzfse=""
 486 zstd=""
 487 guest_agent=""
 488 guest_agent_with_vss="no"
 489 guest_agent_ntddscsi="no"
 490 guest_agent_msi=""
 491 vss_win32_sdk=""
 492 win_sdk="no"
 493 want_tools=""
 494 libiscsi=""
 495 libnfs=""
 496 coroutine=""
 497 coroutine_pool=""
 498 debug_stack_usage="no"
 499 crypto_afalg="no"
 500 seccomp=""
 501 glusterfs=""
 502 glusterfs_xlator_opt="no"
 503 glusterfs_discard="no"
 504 glusterfs_fallocate="no"
 505 glusterfs_zerofill="no"
 506 glusterfs_ftruncate_has_stat="no"
 507 glusterfs_iocb_has_stat="no"
 508 gtk=""
 509 gtk_gl="no"
 510 tls_priority="NORMAL"
 511 gnutls=""
 512 nettle=""
 513 nettle_xts="no"
 514 gcrypt=""
 515 gcrypt_hmac="no"
 516 gcrypt_xts="no"
 517 qemu_private_xts="yes"
 518 auth_pam=""
 519 vte=""
 520 virglrenderer=""
 521 tpm=""
 522 libssh=""
 523 live_block_migration="yes"
 524 numa=""
 525 tcmalloc="no"
 526 jemalloc="no"
 527 replication="yes"
 528 bochs="yes"
 529 cloop="yes"
 530 dmg="yes"
 531 qcow1="yes"
 532 vdi="yes"
 533 vvfat="yes"
 534 qed="yes"
 535 parallels="yes"
 536 sheepdog="yes"
 537 libxml2=""
 538 debug_mutex="no"
 539 libpmem=""
 540 default_devices="yes"
 541 plugins="no"
 542 fuzzing="no"
 543 rng_none="no"
 544 secret_keyring=""
 545 libdaxctl=""
 546 meson=""
 547 ninja=""
 548 skip_meson=no
 549 gettext=""
 550
 551 bogus_os="no"
 552 malloc_trim=""
 553
 554 # parse CC options first
 555 for opt do
 556   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 557   case "$opt" in
 558   --cross-prefix=*) cross_prefix="$optarg"
 559   ;;
 560   --cc=*) CC="$optarg"
 561   ;;
 562   --cxx=*) CXX="$optarg"
 563   ;;
 564   --cpu=*) cpu="$optarg"
 565   ;;
 566   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 567                     QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 568   ;;
 569   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 570   ;;
 571   --extra-ldflags=*) QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 572                      EXTRA_LDFLAGS="$optarg"
 573   ;;
 574   --enable-debug-info) debug_info="yes"
 575   ;;
 576   --disable-debug-info) debug_info="no"
 577   ;;
 578   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 579   ;;
 580   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 581                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 582                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 583   ;;
 584   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 585                 cc_archs="$cc_archs $cc_arch"
 586                 eval "cross_cc_${cc_arch}=\$optarg"
 587                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 588   ;;
 589   esac
 590 done
 591 # OS specific
 592 # Using uname is really, really broken.  Once we have the right set of checks
 593 # we can eliminate its usage altogether.
 594
 595 # Preferred compiler:
 596 #  ${CC} (if set)
 597 #  ${cross_prefix}gcc (if cross-prefix specified)
 598 #  system compiler
 599 if test -z "${CC}${cross_prefix}"; then
 600   cc="$host_cc"
 601 else
 602   cc="${CC-${cross_prefix}gcc}"
 603 fi
 604
 605 if test -z "${CXX}${cross_prefix}"; then
 606   cxx="c++"
 607 else
 608   cxx="${CXX-${cross_prefix}g++}"
 609 fi
 610
 611 ar="${AR-${cross_prefix}ar}"
 612 as="${AS-${cross_prefix}as}"
 613 ccas="${CCAS-$cc}"
 614 cpp="${CPP-$cc -E}"
 615 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 616 ld="${LD-${cross_prefix}ld}"
 617 ranlib="${RANLIB-${cross_prefix}ranlib}"
 618 nm="${NM-${cross_prefix}nm}"
 619 strip="${STRIP-${cross_prefix}strip}"
 620 windres="${WINDRES-${cross_prefix}windres}"
 621 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 622 query_pkg_config() {
 623     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 624 }
 625 pkg_config=query_pkg_config
 626 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 627
 628 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 629 ARFLAGS="${ARFLAGS-rv}"
 630
 631 # default flags for all hosts
 632 # We use -fwrapv to tell the compiler that we require a C dialect where
 633 # left shift of signed integers is well defined and has the expected
 634 # 2s-complement style results. (Both clang and gcc agree that it
 635 # provides these semantics.)
 636 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
 637 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 638 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 639 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 640 QEMU_INCLUDES="-iquote . -iquote ${source_path} -iquote ${source_path}/accel/tcg -iquote ${source_path}/include"
 641 QEMU_INCLUDES="$QEMU_INCLUDES -iquote ${source_path}/disas/libvixl"
 642 CFLAGS="-std=gnu99 -Wall"
 643
 644
 645 check_define() {
 646 cat > $TMPC <<EOF
 647 #if !defined($1)
 648 #error $1 not defined
 649 #endif
 650 int main(void) { return 0; }
 651 EOF
 652   compile_object
 653 }
 654
 655 check_include() {
 656 cat > $TMPC <<EOF
 657 #include <$1>
 658 int main(void) { return 0; }
 659 EOF
 660   compile_object
 661 }
 662
 663 write_c_skeleton() {
 664     cat > $TMPC <<EOF
 665 int main(void) { return 0; }
 666 EOF
 667 }
 668
 669 write_c_fuzzer_skeleton() {
 670     cat > $TMPC <<EOF
 671 #include <stdint.h>
 672 #include <sys/types.h>
 673 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 674 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 675 EOF
 676 }
 677
 678 if check_define __linux__ ; then
 679   targetos="Linux"
 680 elif check_define _WIN32 ; then
 681   targetos='MINGW32'
 682 elif check_define __OpenBSD__ ; then
 683   targetos='OpenBSD'
 684 elif check_define __sun__ ; then
 685   targetos='SunOS'
 686 elif check_define __HAIKU__ ; then
 687   targetos='Haiku'
 688 elif check_define __FreeBSD__ ; then
 689   targetos='FreeBSD'
 690 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 691   targetos='GNU/kFreeBSD'
 692 elif check_define __DragonFly__ ; then
 693   targetos='DragonFly'
 694 elif check_define __NetBSD__; then
 695   targetos='NetBSD'
 696 elif check_define __APPLE__; then
 697   targetos='Darwin'
 698 else
 699   # This is a fatal error, but don't report it yet, because we
 700   # might be going to just print the --help text, or it might
 701   # be the result of a missing compiler.
 702   targetos='bogus'
 703   bogus_os='yes'
 704 fi
 705
 706 # Some host OSes need non-standard checks for which CPU to use.
 707 # Note that these checks are broken for cross-compilation: if you're
 708 # cross-compiling to one of these OSes then you'll need to specify
 709 # the correct CPU with the --cpu option.
 710 case $targetos in
 711 Darwin)
 712   # on Leopard most of the system is 32-bit, so we have to ask the kernel if we can
 713   # run 64-bit userspace code.
 714   # If the user didn't specify a CPU explicitly and the kernel says this is
 715   # 64 bit hw, then assume x86_64. Otherwise fall through to the usual detection code.
 716   if test -z "$cpu" && test "$(sysctl -n hw.optional.x86_64)" = "1"; then
 717     cpu="x86_64"
 718   fi
 719   ;;
 720 SunOS)
 721   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 722   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 723     cpu="x86_64"
 724   fi
 725 esac
 726
 727 if test ! -z "$cpu" ; then
 728   # command line argument
 729   :
 730 elif check_define __i386__ ; then
 731   cpu="i386"
 732 elif check_define __x86_64__ ; then
 733   if check_define __ILP32__ ; then
 734     cpu="x32"
 735   else
 736     cpu="x86_64"
 737   fi
 738 elif check_define __sparc__ ; then
 739   if check_define __arch64__ ; then
 740     cpu="sparc64"
 741   else
 742     cpu="sparc"
 743   fi
 744 elif check_define _ARCH_PPC ; then
 745   if check_define _ARCH_PPC64 ; then
 746     if check_define _LITTLE_ENDIAN ; then
 747       cpu="ppc64le"
 748     else
 749       cpu="ppc64"
 750     fi
 751   else
 752     cpu="ppc"
 753   fi
 754 elif check_define __mips__ ; then
 755   cpu="mips"
 756 elif check_define __s390__ ; then
 757   if check_define __s390x__ ; then
 758     cpu="s390x"
 759   else
 760     cpu="s390"
 761   fi
 762 elif check_define __riscv ; then
 763   if check_define _LP64 ; then
 764     cpu="riscv64"
 765   else
 766     cpu="riscv32"
 767   fi
 768 elif check_define __arm__ ; then
 769   cpu="arm"
 770 elif check_define __aarch64__ ; then
 771   cpu="aarch64"
 772 else
 773   cpu=$(uname -m)
 774 fi
 775
 776 ARCH=
 777 # Normalise host CPU name and set ARCH.
 778 # Note that this case should only have supported host CPUs, not guests.
 779 case "$cpu" in
 780   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 781   ;;
 782   ppc64le)
 783     ARCH="ppc64"
 784   ;;
 785   i386|i486|i586|i686|i86pc|BePC)
 786     cpu="i386"
 787   ;;
 788   x86_64|amd64)
 789     cpu="x86_64"
 790   ;;
 791   armv*b|armv*l|arm)
 792     cpu="arm"
 793   ;;
 794   aarch64)
 795     cpu="aarch64"
 796   ;;
 797   mips*)
 798     cpu="mips"
 799   ;;
 800   sparc|sun4[cdmuv])
 801     cpu="sparc"
 802   ;;
 803   *)
 804     # This will result in either an error or falling back to TCI later
 805     ARCH=unknown
 806   ;;
 807 esac
 808 if test -z "$ARCH"; then
 809   ARCH="$cpu"
 810 fi
 811
 812 # OS specific
 813
 814 # host *BSD for user mode
 815 HOST_VARIANT_DIR=""
 816
 817 case $targetos in
 818 MINGW32*)
 819   mingw32="yes"
 820   hax="yes"
 821   whpx=""
 822   vhost_user="no"
 823   audio_possible_drivers="dsound sdl"
 824   if check_include dsound.h; then
 825     audio_drv_list="dsound"
 826   else
 827     audio_drv_list=""
 828   fi
 829   supported_os="yes"
 830   pie="no"
 831 ;;
 832 GNU/kFreeBSD)
 833   bsd="yes"
 834   audio_drv_list="oss try-sdl"
 835   audio_possible_drivers="oss sdl pa"
 836 ;;
 837 FreeBSD)
 838   bsd="yes"
 839   make="${MAKE-gmake}"
 840   audio_drv_list="oss try-sdl"
 841   audio_possible_drivers="oss sdl pa"
 842   # needed for kinfo_getvmmap(3) in libutil.h
 843   netmap=""  # enable netmap autodetect
 844   HOST_VARIANT_DIR="freebsd"
 845 ;;
 846 DragonFly)
 847   bsd="yes"
 848   make="${MAKE-gmake}"
 849   audio_drv_list="oss try-sdl"
 850   audio_possible_drivers="oss sdl pa"
 851   HOST_VARIANT_DIR="dragonfly"
 852 ;;
 853 NetBSD)
 854   bsd="yes"
 855   hax="yes"
 856   make="${MAKE-gmake}"
 857   audio_drv_list="oss try-sdl"
 858   audio_possible_drivers="oss sdl"
 859   oss_lib="-lossaudio"
 860   HOST_VARIANT_DIR="netbsd"
 861 ;;
 862 OpenBSD)
 863   bsd="yes"
 864   make="${MAKE-gmake}"
 865   audio_drv_list="try-sdl"
 866   audio_possible_drivers="sdl"
 867   HOST_VARIANT_DIR="openbsd"
 868 ;;
 869 Darwin)
 870   bsd="yes"
 871   darwin="yes"
 872   hax="yes"
 873   hvf="yes"
 874   if [ "$cpu" = "x86_64" ] ; then
 875     QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
 876     QEMU_LDFLAGS="-arch x86_64 $QEMU_LDFLAGS"
 877   fi
 878   cocoa="yes"
 879   audio_drv_list="coreaudio try-sdl"
 880   audio_possible_drivers="coreaudio sdl"
 881   QEMU_LDFLAGS="-framework CoreFoundation -framework IOKit $QEMU_LDFLAGS"
 882   # Disable attempts to use ObjectiveC features in os/object.h since they
 883   # won't work when we're compiling with gcc as a C compiler.
 884   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 885   HOST_VARIANT_DIR="darwin"
 886 ;;
 887 SunOS)
 888   solaris="yes"
 889   make="${MAKE-gmake}"
 890   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 891   if test -f /usr/include/sys/soundcard.h ; then
 892     audio_drv_list="oss try-sdl"
 893   fi
 894   audio_possible_drivers="oss sdl"
 895 # needed for CMSG_ macros in sys/socket.h
 896   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 897 # needed for TIOCWIN* defines in termios.h
 898   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 899 ;;
 900 Haiku)
 901   haiku="yes"
 902   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -DBSD_SOURCE $QEMU_CFLAGS"
 903 ;;
 904 Linux)
 905   audio_drv_list="try-pa oss"
 906   audio_possible_drivers="oss alsa sdl pa"
 907   linux="yes"
 908   linux_user="yes"
 909   kvm="yes"
 910   QEMU_INCLUDES="-isystem ${source_path}/linux-headers -Ilinux-headers $QEMU_INCLUDES"
 911   libudev="yes"
 912 ;;
 913 esac
 914
 915 if [ "$bsd" = "yes" ] ; then
 916   if [ "$darwin" != "yes" ] ; then
 917     bsd_user="yes"
 918   fi
 919 fi
 920
 921 : ${make=${MAKE-make}}
 922
 923 # We prefer python 3.x. A bare 'python' is traditionally
 924 # python 2.x, but some distros have it as python 3.x, so
 925 # we check that too
 926 python=
 927 explicit_python=no
 928 for binary in "${PYTHON-python3}" python
 929 do
 930     if has "$binary"
 931     then
 932         python=$(command -v "$binary")
 933         break
 934     fi
 935 done
 936
 937 sphinx_build=
 938 for binary in sphinx-build-3 sphinx-build
 939 do
 940     if has "$binary"
 941     then
 942         sphinx_build=$(command -v "$binary")
 943         break
 944     fi
 945 done
 946
 947 # Check for ancillary tools used in testing
 948 genisoimage=
 949 for binary in genisoimage mkisofs
 950 do
 951     if has $binary
 952     then
 953         genisoimage=$(command -v "$binary")
 954         break
 955     fi
 956 done
 957
 958 : ${smbd=${SMBD-/usr/sbin/smbd}}
 959
 960 # Default objcc to clang if available, otherwise use CC
 961 if has clang; then
 962   objcc=clang
 963 else
 964   objcc="$cc"
 965 fi
 966
 967 if test "$mingw32" = "yes" ; then
 968   EXESUF=".exe"
 969   HOST_DSOSUF=".dll"
 970   # MinGW needs -mthreads for TLS and macro _MT.
 971   CFLAGS="-mthreads $CFLAGS"
 972   write_c_skeleton;
 973   prefix="c:/Program Files/QEMU"
 974   qemu_suffix=""
 975   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 976 fi
 977
 978 werror=""
 979
 980 for opt do
 981   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 982   case "$opt" in
 983   --help|-h) show_help=yes
 984   ;;
 985   --version|-V) exec cat $source_path/VERSION
 986   ;;
 987   --prefix=*) prefix="$optarg"
 988   ;;
 989   --interp-prefix=*) interp_prefix="$optarg"
 990   ;;
 991   --cross-prefix=*)
 992   ;;
 993   --cc=*)
 994   ;;
 995   --host-cc=*) host_cc="$optarg"
 996   ;;
 997   --cxx=*)
 998   ;;
 999   --iasl=*) iasl="$optarg"
1000   ;;
1001   --objcc=*) objcc="$optarg"
1002   ;;
1003   --make=*) make="$optarg"
1004   ;;
1005   --install=*)
1006   ;;
1007   --python=*) python="$optarg" ; explicit_python=yes
1008   ;;
1009   --sphinx-build=*) sphinx_build="$optarg"
1010   ;;
1011   --skip-meson) skip_meson=yes
1012   ;;
1013   --meson=*) meson="$optarg"
1014   ;;
1015   --ninja=*) ninja="$optarg"
1016   ;;
1017   --smbd=*) smbd="$optarg"
1018   ;;
1019   --extra-cflags=*)
1020   ;;
1021   --extra-cxxflags=*)
1022   ;;
1023   --extra-ldflags=*)
1024   ;;
1025   --enable-debug-info)
1026   ;;
1027   --disable-debug-info)
1028   ;;
1029   --cross-cc-*)
1030   ;;
1031   --enable-modules)
1032       modules="yes"
1033   ;;
1034   --disable-modules)
1035       modules="no"
1036   ;;
1037   --disable-module-upgrades) module_upgrades="no"
1038   ;;
1039   --enable-module-upgrades) module_upgrades="yes"
1040   ;;
1041   --cpu=*)
1042   ;;
1043   --target-list=*) target_list="$optarg"
1044                    if test "$target_list_exclude"; then
1045                        error_exit "Can't mix --target-list with --target-list-exclude"
1046                    fi
1047   ;;
1048   --target-list-exclude=*) target_list_exclude="$optarg"
1049                    if test "$target_list"; then
1050                        error_exit "Can't mix --target-list-exclude with --target-list"
1051                    fi
1052   ;;
1053   --enable-trace-backends=*) trace_backends="$optarg"
1054   ;;
1055   # XXX: backwards compatibility
1056   --enable-trace-backend=*) trace_backends="$optarg"
1057   ;;
1058   --with-trace-file=*) trace_file="$optarg"
1059   ;;
1060   --with-default-devices) default_devices="yes"
1061   ;;
1062   --without-default-devices) default_devices="no"
1063   ;;
1064   --enable-gprof) gprof="yes"
1065   ;;
1066   --enable-gcov) gcov="yes"
1067   ;;
1068   --static)
1069     static="yes"
1070     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
1071   ;;
1072   --mandir=*) mandir="$optarg"
1073   ;;
1074   --bindir=*) bindir="$optarg"
1075   ;;
1076   --libdir=*) libdir="$optarg"
1077   ;;
1078   --libexecdir=*) libexecdir="$optarg"
1079   ;;
1080   --includedir=*) includedir="$optarg"
1081   ;;
1082   --datadir=*) datadir="$optarg"
1083   ;;
1084   --with-suffix=*) qemu_suffix="$optarg"
1085   ;;
1086   --docdir=*) qemu_docdir="$optarg"
1087   ;;
1088   --sysconfdir=*) sysconfdir="$optarg"
1089   ;;
1090   --localstatedir=*) local_statedir="$optarg"
1091   ;;
1092   --firmwarepath=*) firmwarepath="$optarg"
1093   ;;
1094   --host=*|--build=*|\
1095   --disable-dependency-tracking|\
1096   --sbindir=*|--sharedstatedir=*|\
1097   --oldincludedir=*|--datarootdir=*|--infodir=*|--localedir=*|\
1098   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
1099     # These switches are silently ignored, for compatibility with
1100     # autoconf-generated configure scripts. This allows QEMU's
1101     # configure to be used by RPM and similar macros that set
1102     # lots of directory switches by default.
1103   ;;
1104   --disable-sdl) sdl="disabled"
1105   ;;
1106   --enable-sdl) sdl="enabled"
1107   ;;
1108   --disable-sdl-image) sdl_image="disabled"
1109   ;;
1110   --enable-sdl-image) sdl_image="enabled"
1111   ;;
1112   --disable-qom-cast-debug) qom_cast_debug="no"
1113   ;;
1114   --enable-qom-cast-debug) qom_cast_debug="yes"
1115   ;;
1116   --disable-virtfs) virtfs="no"
1117   ;;
1118   --enable-virtfs) virtfs="yes"
1119   ;;
1120   --disable-mpath) mpath="no"
1121   ;;
1122   --enable-mpath) mpath="yes"
1123   ;;
1124   --disable-vnc) vnc="disabled"
1125   ;;
1126   --enable-vnc) vnc="enabled"
1127   ;;
1128   --disable-gettext) gettext="false"
1129   ;;
1130   --enable-gettext) gettext="true"
1131   ;;
1132   --oss-lib=*) oss_lib="$optarg"
1133   ;;
1134   --audio-drv-list=*) audio_drv_list="$optarg"
1135   ;;
1136   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1137   ;;
1138   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1139   ;;
1140   --enable-debug-tcg) debug_tcg="yes"
1141   ;;
1142   --disable-debug-tcg) debug_tcg="no"
1143   ;;
1144   --enable-debug)
1145       # Enable debugging options that aren't excessively noisy
1146       debug_tcg="yes"
1147       debug_mutex="yes"
1148       debug="yes"
1149       strip_opt="no"
1150       fortify_source="no"
1151   ;;
1152   --enable-sanitizers) sanitizers="yes"
1153   ;;
1154   --disable-sanitizers) sanitizers="no"
1155   ;;
1156   --enable-tsan) tsan="yes"
1157   ;;
1158   --disable-tsan) tsan="no"
1159   ;;
1160   --enable-sparse) sparse="yes"
1161   ;;
1162   --disable-sparse) sparse="no"
1163   ;;
1164   --disable-strip) strip_opt="no"
1165   ;;
1166   --disable-vnc-sasl) vnc_sasl="disabled"
1167   ;;
1168   --enable-vnc-sasl) vnc_sasl="enabled"
1169   ;;
1170   --disable-vnc-jpeg) vnc_jpeg="disabled"
1171   ;;
1172   --enable-vnc-jpeg) vnc_jpeg="enabled"
1173   ;;
1174   --disable-vnc-png) vnc_png="disabled"
1175   ;;
1176   --enable-vnc-png) vnc_png="enabled"
1177   ;;
1178   --disable-slirp) slirp="no"
1179   ;;
1180   --enable-slirp=git) slirp="git"
1181   ;;
1182   --enable-slirp=system) slirp="system"
1183   ;;
1184   --disable-vde) vde="no"
1185   ;;
1186   --enable-vde) vde="yes"
1187   ;;
1188   --disable-netmap) netmap="no"
1189   ;;
1190   --enable-netmap) netmap="yes"
1191   ;;
1192   --disable-xen) xen="no"
1193   ;;
1194   --enable-xen) xen="yes"
1195   ;;
1196   --disable-xen-pci-passthrough) xen_pci_passthrough="no"
1197   ;;
1198   --enable-xen-pci-passthrough) xen_pci_passthrough="yes"
1199   ;;
1200   --disable-brlapi) brlapi="no"
1201   ;;
1202   --enable-brlapi) brlapi="yes"
1203   ;;
1204   --disable-kvm) kvm="no"
1205   ;;
1206   --enable-kvm) kvm="yes"
1207   ;;
1208   --disable-hax) hax="no"
1209   ;;
1210   --enable-hax) hax="yes"
1211   ;;
1212   --disable-hvf) hvf="no"
1213   ;;
1214   --enable-hvf) hvf="yes"
1215   ;;
1216   --disable-whpx) whpx="no"
1217   ;;
1218   --enable-whpx) whpx="yes"
1219   ;;
1220   --disable-tcg-interpreter) tcg_interpreter="no"
1221   ;;
1222   --enable-tcg-interpreter) tcg_interpreter="yes"
1223   ;;
1224   --disable-cap-ng)  cap_ng="no"
1225   ;;
1226   --enable-cap-ng) cap_ng="yes"
1227   ;;
1228   --disable-tcg) tcg="no"
1229   ;;
1230   --enable-tcg) tcg="yes"
1231   ;;
1232   --disable-malloc-trim) malloc_trim="no"
1233   ;;
1234   --enable-malloc-trim) malloc_trim="yes"
1235   ;;
1236   --disable-spice) spice="no"
1237   ;;
1238   --enable-spice) spice="yes"
1239   ;;
1240   --disable-libiscsi) libiscsi="no"
1241   ;;
1242   --enable-libiscsi) libiscsi="yes"
1243   ;;
1244   --disable-libnfs) libnfs="no"
1245   ;;
1246   --enable-libnfs) libnfs="yes"
1247   ;;
1248   --enable-profiler) profiler="yes"
1249   ;;
1250   --disable-cocoa) cocoa="no"
1251   ;;
1252   --enable-cocoa)
1253       cocoa="yes" ;
1254       audio_drv_list="coreaudio $(echo $audio_drv_list | sed s,coreaudio,,g)"
1255   ;;
1256   --disable-system) softmmu="no"
1257   ;;
1258   --enable-system) softmmu="yes"
1259   ;;
1260   --disable-user)
1261       linux_user="no" ;
1262       bsd_user="no" ;
1263   ;;
1264   --enable-user) ;;
1265   --disable-linux-user) linux_user="no"
1266   ;;
1267   --enable-linux-user) linux_user="yes"
1268   ;;
1269   --disable-bsd-user) bsd_user="no"
1270   ;;
1271   --enable-bsd-user) bsd_user="yes"
1272   ;;
1273   --enable-pie) pie="yes"
1274   ;;
1275   --disable-pie) pie="no"
1276   ;;
1277   --enable-werror) werror="yes"
1278   ;;
1279   --disable-werror) werror="no"
1280   ;;
1281   --enable-stack-protector) stack_protector="yes"
1282   ;;
1283   --disable-stack-protector) stack_protector="no"
1284   ;;
1285   --enable-safe-stack) safe_stack="yes"
1286   ;;
1287   --disable-safe-stack) safe_stack="no"
1288   ;;
1289   --disable-curses) curses="no"
1290   ;;
1291   --enable-curses) curses="yes"
1292   ;;
1293   --disable-iconv) iconv="no"
1294   ;;
1295   --enable-iconv) iconv="yes"
1296   ;;
1297   --disable-curl) curl="no"
1298   ;;
1299   --enable-curl) curl="yes"
1300   ;;
1301   --disable-fdt) fdt="no"
1302   ;;
1303   --enable-fdt) fdt="yes"
1304   ;;
1305   --disable-linux-aio) linux_aio="no"
1306   ;;
1307   --enable-linux-aio) linux_aio="yes"
1308   ;;
1309   --disable-linux-io-uring) linux_io_uring="no"
1310   ;;
1311   --enable-linux-io-uring) linux_io_uring="yes"
1312   ;;
1313   --disable-attr) attr="no"
1314   ;;
1315   --enable-attr) attr="yes"
1316   ;;
1317   --disable-membarrier) membarrier="no"
1318   ;;
1319   --enable-membarrier) membarrier="yes"
1320   ;;
1321   --disable-blobs) blobs="no"
1322   ;;
1323   --with-pkgversion=*) pkgversion="$optarg"
1324   ;;
1325   --with-coroutine=*) coroutine="$optarg"
1326   ;;
1327   --disable-coroutine-pool) coroutine_pool="no"
1328   ;;
1329   --enable-coroutine-pool) coroutine_pool="yes"
1330   ;;
1331   --enable-debug-stack-usage) debug_stack_usage="yes"
1332   ;;
1333   --enable-crypto-afalg) crypto_afalg="yes"
1334   ;;
1335   --disable-crypto-afalg) crypto_afalg="no"
1336   ;;
1337   --disable-docs) docs="no"
1338   ;;
1339   --enable-docs) docs="yes"
1340   ;;
1341   --disable-vhost-net) vhost_net="no"
1342   ;;
1343   --enable-vhost-net) vhost_net="yes"
1344   ;;
1345   --disable-vhost-crypto) vhost_crypto="no"
1346   ;;
1347   --enable-vhost-crypto) vhost_crypto="yes"
1348   ;;
1349   --disable-vhost-scsi) vhost_scsi="no"
1350   ;;
1351   --enable-vhost-scsi) vhost_scsi="yes"
1352   ;;
1353   --disable-vhost-vsock) vhost_vsock="no"
1354   ;;
1355   --enable-vhost-vsock) vhost_vsock="yes"
1356   ;;
1357   --disable-vhost-user-fs) vhost_user_fs="no"
1358   ;;
1359   --enable-vhost-user-fs) vhost_user_fs="yes"
1360   ;;
1361   --disable-opengl) opengl="no"
1362   ;;
1363   --enable-opengl) opengl="yes"
1364   ;;
1365   --disable-rbd) rbd="no"
1366   ;;
1367   --enable-rbd) rbd="yes"
1368   ;;
1369   --disable-xfsctl) xfs="no"
1370   ;;
1371   --enable-xfsctl) xfs="yes"
1372   ;;
1373   --disable-smartcard) smartcard="no"
1374   ;;
1375   --enable-smartcard) smartcard="yes"
1376   ;;
1377   --disable-u2f) u2f="disabled"
1378   ;;
1379   --enable-u2f) u2f="enabled"
1380   ;;
1381   --disable-libusb) libusb="no"
1382   ;;
1383   --enable-libusb) libusb="yes"
1384   ;;
1385   --disable-usb-redir) usb_redir="no"
1386   ;;
1387   --enable-usb-redir) usb_redir="yes"
1388   ;;
1389   --disable-zlib-test)
1390   ;;
1391   --disable-lzo) lzo="no"
1392   ;;
1393   --enable-lzo) lzo="yes"
1394   ;;
1395   --disable-snappy) snappy="no"
1396   ;;
1397   --enable-snappy) snappy="yes"
1398   ;;
1399   --disable-bzip2) bzip2="no"
1400   ;;
1401   --enable-bzip2) bzip2="yes"
1402   ;;
1403   --enable-lzfse) lzfse="yes"
1404   ;;
1405   --disable-lzfse) lzfse="no"
1406   ;;
1407   --disable-zstd) zstd="no"
1408   ;;
1409   --enable-zstd) zstd="yes"
1410   ;;
1411   --enable-guest-agent) guest_agent="yes"
1412   ;;
1413   --disable-guest-agent) guest_agent="no"
1414   ;;
1415   --enable-guest-agent-msi) guest_agent_msi="yes"
1416   ;;
1417   --disable-guest-agent-msi) guest_agent_msi="no"
1418   ;;
1419   --with-vss-sdk) vss_win32_sdk=""
1420   ;;
1421   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1422   ;;
1423   --without-vss-sdk) vss_win32_sdk="no"
1424   ;;
1425   --with-win-sdk) win_sdk=""
1426   ;;
1427   --with-win-sdk=*) win_sdk="$optarg"
1428   ;;
1429   --without-win-sdk) win_sdk="no"
1430   ;;
1431   --enable-tools) want_tools="yes"
1432   ;;
1433   --disable-tools) want_tools="no"
1434   ;;
1435   --enable-seccomp) seccomp="yes"
1436   ;;
1437   --disable-seccomp) seccomp="no"
1438   ;;
1439   --disable-glusterfs) glusterfs="no"
1440   ;;
1441   --disable-avx2) avx2_opt="no"
1442   ;;
1443   --enable-avx2) avx2_opt="yes"
1444   ;;
1445   --disable-avx512f) avx512f_opt="no"
1446   ;;
1447   --enable-avx512f) avx512f_opt="yes"
1448   ;;
1449
1450   --enable-glusterfs) glusterfs="yes"
1451   ;;
1452   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1453       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1454   ;;
1455   --enable-vhdx|--disable-vhdx)
1456       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1457   ;;
1458   --enable-uuid|--disable-uuid)
1459       echo "$0: $opt is obsolete, UUID support is always built" >&2
1460   ;;
1461   --disable-gtk) gtk="no"
1462   ;;
1463   --enable-gtk) gtk="yes"
1464   ;;
1465   --tls-priority=*) tls_priority="$optarg"
1466   ;;
1467   --disable-gnutls) gnutls="no"
1468   ;;
1469   --enable-gnutls) gnutls="yes"
1470   ;;
1471   --disable-nettle) nettle="no"
1472   ;;
1473   --enable-nettle) nettle="yes"
1474   ;;
1475   --disable-gcrypt) gcrypt="no"
1476   ;;
1477   --enable-gcrypt) gcrypt="yes"
1478   ;;
1479   --disable-auth-pam) auth_pam="no"
1480   ;;
1481   --enable-auth-pam) auth_pam="yes"
1482   ;;
1483   --enable-rdma) rdma="yes"
1484   ;;
1485   --disable-rdma) rdma="no"
1486   ;;
1487   --enable-pvrdma) pvrdma="yes"
1488   ;;
1489   --disable-pvrdma) pvrdma="no"
1490   ;;
1491   --disable-vte) vte="no"
1492   ;;
1493   --enable-vte) vte="yes"
1494   ;;
1495   --disable-virglrenderer) virglrenderer="no"
1496   ;;
1497   --enable-virglrenderer) virglrenderer="yes"
1498   ;;
1499   --disable-tpm) tpm="no"
1500   ;;
1501   --enable-tpm) tpm="yes"
1502   ;;
1503   --disable-libssh) libssh="no"
1504   ;;
1505   --enable-libssh) libssh="yes"
1506   ;;
1507   --disable-live-block-migration) live_block_migration="no"
1508   ;;
1509   --enable-live-block-migration) live_block_migration="yes"
1510   ;;
1511   --disable-numa) numa="no"
1512   ;;
1513   --enable-numa) numa="yes"
1514   ;;
1515   --disable-libxml2) libxml2="no"
1516   ;;
1517   --enable-libxml2) libxml2="yes"
1518   ;;
1519   --disable-tcmalloc) tcmalloc="no"
1520   ;;
1521   --enable-tcmalloc) tcmalloc="yes"
1522   ;;
1523   --disable-jemalloc) jemalloc="no"
1524   ;;
1525   --enable-jemalloc) jemalloc="yes"
1526   ;;
1527   --disable-replication) replication="no"
1528   ;;
1529   --enable-replication) replication="yes"
1530   ;;
1531   --disable-bochs) bochs="no"
1532   ;;
1533   --enable-bochs) bochs="yes"
1534   ;;
1535   --disable-cloop) cloop="no"
1536   ;;
1537   --enable-cloop) cloop="yes"
1538   ;;
1539   --disable-dmg) dmg="no"
1540   ;;
1541   --enable-dmg) dmg="yes"
1542   ;;
1543   --disable-qcow1) qcow1="no"
1544   ;;
1545   --enable-qcow1) qcow1="yes"
1546   ;;
1547   --disable-vdi) vdi="no"
1548   ;;
1549   --enable-vdi) vdi="yes"
1550   ;;
1551   --disable-vvfat) vvfat="no"
1552   ;;
1553   --enable-vvfat) vvfat="yes"
1554   ;;
1555   --disable-qed) qed="no"
1556   ;;
1557   --enable-qed) qed="yes"
1558   ;;
1559   --disable-parallels) parallels="no"
1560   ;;
1561   --enable-parallels) parallels="yes"
1562   ;;
1563   --disable-sheepdog) sheepdog="no"
1564   ;;
1565   --enable-sheepdog) sheepdog="yes"
1566   ;;
1567   --disable-vhost-user) vhost_user="no"
1568   ;;
1569   --enable-vhost-user) vhost_user="yes"
1570   ;;
1571   --disable-vhost-vdpa) vhost_vdpa="no"
1572   ;;
1573   --enable-vhost-vdpa) vhost_vdpa="yes"
1574   ;;
1575   --disable-vhost-kernel) vhost_kernel="no"
1576   ;;
1577   --enable-vhost-kernel) vhost_kernel="yes"
1578   ;;
1579   --disable-capstone) capstone="no"
1580   ;;
1581   --enable-capstone) capstone="yes"
1582   ;;
1583   --enable-capstone=git) capstone="git"
1584   ;;
1585   --enable-capstone=system) capstone="system"
1586   ;;
1587   --with-git=*) git="$optarg"
1588   ;;
1589   --enable-git-update) git_update=yes
1590   ;;
1591   --disable-git-update) git_update=no
1592   ;;
1593   --enable-debug-mutex) debug_mutex=yes
1594   ;;
1595   --disable-debug-mutex) debug_mutex=no
1596   ;;
1597   --enable-libpmem) libpmem=yes
1598   ;;
1599   --disable-libpmem) libpmem=no
1600   ;;
1601   --enable-xkbcommon) xkbcommon="enabled"
1602   ;;
1603   --disable-xkbcommon) xkbcommon="disabled"
1604   ;;
1605   --enable-plugins) plugins="yes"
1606   ;;
1607   --disable-plugins) plugins="no"
1608   ;;
1609   --enable-containers) use_containers="yes"
1610   ;;
1611   --disable-containers) use_containers="no"
1612   ;;
1613   --enable-fuzzing) fuzzing=yes
1614   ;;
1615   --disable-fuzzing) fuzzing=no
1616   ;;
1617   --gdb=*) gdb_bin="$optarg"
1618   ;;
1619   --enable-rng-none) rng_none=yes
1620   ;;
1621   --disable-rng-none) rng_none=no
1622   ;;
1623   --enable-keyring) secret_keyring="yes"
1624   ;;
1625   --disable-keyring) secret_keyring="no"
1626   ;;
1627   --enable-libdaxctl) libdaxctl=yes
1628   ;;
1629   --disable-libdaxctl) libdaxctl=no
1630   ;;
1631   *)
1632       echo "ERROR: unknown option $opt"
1633       echo "Try '$0 --help' for more information"
1634       exit 1
1635   ;;
1636   esac
1637 done
1638
1639 firmwarepath="${firmwarepath:-$prefix/share/qemu-firmware}"
1640 libdir="${libdir:-$prefix/lib}"
1641 libexecdir="${libexecdir:-$prefix/libexec}"
1642 includedir="${includedir:-$prefix/include}"
1643
1644 if test "$mingw32" = "yes" ; then
1645     mandir="$prefix"
1646     datadir="$prefix"
1647     docdir="$prefix"
1648     bindir="$prefix"
1649     sysconfdir="$prefix"
1650     local_statedir=
1651 else
1652     mandir="${mandir:-$prefix/share/man}"
1653     datadir="${datadir:-$prefix/share}"
1654     docdir="${docdir:-$prefix/share/doc}"
1655     bindir="${bindir:-$prefix/bin}"
1656     sysconfdir="${sysconfdir:-$prefix/etc}"
1657     local_statedir="${local_statedir:-$prefix/var}"
1658 fi
1659
1660 case "$cpu" in
1661     ppc)
1662            CPU_CFLAGS="-m32"
1663            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1664            ;;
1665     ppc64)
1666            CPU_CFLAGS="-m64"
1667            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1668            ;;
1669     sparc)
1670            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1671            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1672            ;;
1673     sparc64)
1674            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1675            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1676            ;;
1677     s390)
1678            CPU_CFLAGS="-m31"
1679            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1680            ;;
1681     s390x)
1682            CPU_CFLAGS="-m64"
1683            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1684            ;;
1685     i386)
1686            CPU_CFLAGS="-m32"
1687            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1688            ;;
1689     x86_64)
1690            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1691            # If we truly care, we should simply detect this case at
1692            # runtime and generate the fallback to serial emulation.
1693            CPU_CFLAGS="-m64 -mcx16"
1694            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1695            ;;
1696     x32)
1697            CPU_CFLAGS="-mx32"
1698            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1699            ;;
1700     # No special flags required for other host CPUs
1701 esac
1702
1703 eval "cross_cc_${cpu}=\$host_cc"
1704 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1705 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1706
1707 # For user-mode emulation the host arch has to be one we explicitly
1708 # support, even if we're using TCI.
1709 if [ "$ARCH" = "unknown" ]; then
1710   bsd_user="no"
1711   linux_user="no"
1712 fi
1713
1714 if [ "$bsd_user" = "no" -a "$linux_user" = "no" -a "$softmmu" = "no" ] ; then
1715   tcg="no"
1716 fi
1717
1718 default_target_list=""
1719
1720 mak_wilds=""
1721
1722 if [ "$softmmu" = "yes" ]; then
1723     mak_wilds="${mak_wilds} $source_path/default-configs/*-softmmu.mak"
1724 fi
1725 if [ "$linux_user" = "yes" ]; then
1726     mak_wilds="${mak_wilds} $source_path/default-configs/*-linux-user.mak"
1727 fi
1728 if [ "$bsd_user" = "yes" ]; then
1729     mak_wilds="${mak_wilds} $source_path/default-configs/*-bsd-user.mak"
1730 fi
1731
1732 # If the user doesn't explicitly specify a deprecated target we will
1733 # skip it.
1734 if test -z "$target_list"; then
1735     if test -z "$target_list_exclude"; then
1736         target_list_exclude="$deprecated_targets_list"
1737     else
1738         target_list_exclude="$target_list_exclude,$deprecated_targets_list"
1739     fi
1740 fi
1741
1742 for config in $mak_wilds; do
1743     target="$(basename "$config" .mak)"
1744     if echo "$target_list_exclude" | grep -vq "$target"; then
1745         default_target_list="${default_target_list} $target"
1746     fi
1747 done
1748
1749 # Enumerate public trace backends for --help output
1750 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1751
1752 if test x"$show_help" = x"yes" ; then
1753 cat << EOF
1754
1755 Usage: configure [options]
1756 Options: [defaults in brackets after descriptions]
1757
1758 Standard options:
1759   --help                   print this message
1760   --prefix=PREFIX          install in PREFIX [$prefix]
1761   --interp-prefix=PREFIX   where to find shared libraries, etc.
1762                            use %M for cpu name [$interp_prefix]
1763   --target-list=LIST       set target list (default: build everything)
1764 $(echo Available targets: $default_target_list | \
1765   fold -s -w 53 | sed -e 's/^/                           /')
1766   --target-list-exclude=LIST exclude a set of targets from the default target-list
1767
1768 Advanced options (experts only):
1769   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
1770   --cc=CC                  use C compiler CC [$cc]
1771   --iasl=IASL              use ACPI compiler IASL [$iasl]
1772   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1773                            build time
1774   --cxx=CXX                use C++ compiler CXX [$cxx]
1775   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1776   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1777   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1778   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1779   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1780   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1781   --make=MAKE              use specified make [$make]
1782   --python=PYTHON          use specified python [$python]
1783   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1784   --meson=MESON            use specified meson [$meson]
1785   --ninja=NINJA            use specified ninja [$ninja]
1786   --smbd=SMBD              use specified smbd [$smbd]
1787   --with-git=GIT           use specified git [$git]
1788   --static                 enable static build [$static]
1789   --mandir=PATH            install man pages in PATH
1790   --datadir=PATH           install firmware in PATH/$qemu_suffix
1791   --docdir=PATH            install documentation in PATH/$qemu_suffix
1792   --bindir=PATH            install binaries in PATH
1793   --libdir=PATH            install libraries in PATH
1794   --libexecdir=PATH        install helper binaries in PATH
1795   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1796   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1797   --firmwarepath=PATH      search PATH for firmware files
1798   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1799   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1800   --with-pkgversion=VERS   use specified string as sub-version of the package
1801   --enable-debug           enable common debug build options
1802   --enable-sanitizers      enable default sanitizers
1803   --enable-tsan            enable thread sanitizer
1804   --disable-strip          disable stripping binaries
1805   --disable-werror         disable compilation abort on warning
1806   --disable-stack-protector disable compiler-provided stack protection
1807   --audio-drv-list=LIST    set audio drivers list:
1808                            Available drivers: $audio_possible_drivers
1809   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1810   --block-drv-rw-whitelist=L
1811                            set block driver read-write whitelist
1812                            (affects only QEMU, not qemu-img)
1813   --block-drv-ro-whitelist=L
1814                            set block driver read-only whitelist
1815                            (affects only QEMU, not qemu-img)
1816   --enable-trace-backends=B Set trace backend
1817                            Available backends: $trace_backend_list
1818   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1819                            Default:trace-<pid>
1820   --disable-slirp          disable SLIRP userspace network connectivity
1821   --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)
1822   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1823   --oss-lib                path to OSS library
1824   --cpu=CPU                Build for host CPU [$cpu]
1825   --with-coroutine=BACKEND coroutine backend. Supported options:
1826                            ucontext, sigaltstack, windows
1827   --enable-gcov            enable test coverage analysis with gcov
1828   --disable-blobs          disable installing provided firmware blobs
1829   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1830   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1831   --tls-priority           default TLS protocol/cipher priority string
1832   --enable-gprof           QEMU profiling with gprof
1833   --enable-profiler        profiler support
1834   --enable-debug-stack-usage
1835                            track the maximum stack usage of stacks created by qemu_alloc_stack
1836   --enable-plugins
1837                            enable plugins via shared library loading
1838   --disable-containers     don't use containers for cross-building
1839   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1840
1841 Optional features, enabled with --enable-FEATURE and
1842 disabled with --disable-FEATURE, default is enabled if available:
1843
1844   system          all system emulation targets
1845   user            supported user emulation targets
1846   linux-user      all linux usermode emulation targets
1847   bsd-user        all BSD usermode emulation targets
1848   docs            build documentation
1849   guest-agent     build the QEMU Guest Agent
1850   guest-agent-msi build guest agent Windows MSI installation package
1851   pie             Position Independent Executables
1852   modules         modules support (non-Windows)
1853   module-upgrades try to load modules from alternate paths for upgrades
1854   debug-tcg       TCG debugging (default is disabled)
1855   debug-info      debugging information
1856   sparse          sparse checker
1857   safe-stack      SafeStack Stack Smash Protection. Depends on
1858                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1859
1860   gnutls          GNUTLS cryptography support
1861   nettle          nettle cryptography support
1862   gcrypt          libgcrypt cryptography support
1863   auth-pam        PAM access control
1864   sdl             SDL UI
1865   sdl-image       SDL Image support for icons
1866   gtk             gtk UI
1867   vte             vte support for the gtk UI
1868   curses          curses UI
1869   iconv           font glyph conversion support
1870   vnc             VNC UI support
1871   vnc-sasl        SASL encryption for VNC server
1872   vnc-jpeg        JPEG lossy compression for VNC server
1873   vnc-png         PNG compression for VNC server
1874   cocoa           Cocoa UI (Mac OS X only)
1875   virtfs          VirtFS
1876   mpath           Multipath persistent reservation passthrough
1877   xen             xen backend driver support
1878   xen-pci-passthrough    PCI passthrough support for Xen
1879   brlapi          BrlAPI (Braile)
1880   curl            curl connectivity
1881   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1882   fdt             fdt device tree
1883   kvm             KVM acceleration support
1884   hax             HAX acceleration support
1885   hvf             Hypervisor.framework acceleration support
1886   whpx            Windows Hypervisor Platform acceleration support
1887   rdma            Enable RDMA-based migration
1888   pvrdma          Enable PVRDMA support
1889   vde             support for vde network
1890   netmap          support for netmap network
1891   linux-aio       Linux AIO support
1892   linux-io-uring  Linux io_uring support
1893   cap-ng          libcap-ng support
1894   attr            attr and xattr support
1895   vhost-net       vhost-net kernel acceleration support
1896   vhost-vsock     virtio sockets device support
1897   vhost-scsi      vhost-scsi kernel target support
1898   vhost-crypto    vhost-user-crypto backend support
1899   vhost-kernel    vhost kernel backend support
1900   vhost-user      vhost-user backend support
1901   vhost-vdpa      vhost-vdpa kernel backend support
1902   spice           spice
1903   rbd             rados block device (rbd)
1904   libiscsi        iscsi support
1905   libnfs          nfs support
1906   smartcard       smartcard support (libcacard)
1907   u2f             U2F support (u2f-emu)
1908   libusb          libusb (for usb passthrough)
1909   live-block-migration   Block migration in the main migration stream
1910   usb-redir       usb network redirection support
1911   lzo             support of lzo compression library
1912   snappy          support of snappy compression library
1913   bzip2           support of bzip2 compression library
1914                   (for reading bzip2-compressed dmg images)
1915   lzfse           support of lzfse compression library
1916                   (for reading lzfse-compressed dmg images)
1917   zstd            support for zstd compression library
1918                   (for migration compression and qcow2 cluster compression)
1919   seccomp         seccomp support
1920   coroutine-pool  coroutine freelist (better performance)
1921   glusterfs       GlusterFS backend
1922   tpm             TPM support
1923   libssh          ssh block device support
1924   numa            libnuma support
1925   libxml2         for Parallels image format
1926   tcmalloc        tcmalloc support
1927   jemalloc        jemalloc support
1928   avx2            AVX2 optimization support
1929   avx512f         AVX512F optimization support
1930   replication     replication support
1931   opengl          opengl support
1932   virglrenderer   virgl rendering support
1933   xfsctl          xfsctl support
1934   qom-cast-debug  cast debugging support
1935   tools           build qemu-io, qemu-nbd and qemu-img tools
1936   bochs           bochs image format support
1937   cloop           cloop image format support
1938   dmg             dmg image format support
1939   qcow1           qcow v1 image format support
1940   vdi             vdi image format support
1941   vvfat           vvfat image format support
1942   qed             qed image format support
1943   parallels       parallels image format support
1944   sheepdog        sheepdog block driver support
1945   crypto-afalg    Linux AF_ALG crypto backend driver
1946   capstone        capstone disassembler support
1947   debug-mutex     mutex debugging support
1948   libpmem         libpmem support
1949   xkbcommon       xkbcommon support
1950   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1951   libdaxctl       libdaxctl support
1952
1953 NOTE: The object files are built at the place where configure is launched
1954 EOF
1955 exit 0
1956 fi
1957
1958 # Remove old dependency files to make sure that they get properly regenerated
1959 rm -f */config-devices.mak.d
1960
1961 if test -z "$python"
1962 then
1963     error_exit "Python not found. Use --python=/path/to/python"
1964 fi
1965
1966 # Note that if the Python conditional here evaluates True we will exit
1967 # with status 1 which is a shell 'false' value.
1968 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,5))'; then
1969   error_exit "Cannot use '$python', Python >= 3.5 is required." \
1970       "Use --python=/path/to/python to specify a supported Python."
1971 fi
1972
1973 # Preserve python version since some functionality is dependent on it
1974 python_version=$($python -c 'import sys; print("%d.%d.%d" % (sys.version_info[0], sys.version_info[1], sys.version_info[2]))' 2>/dev/null)
1975
1976 # Suppress writing compiled files
1977 python="$python -B"
1978
1979 if test -z "$meson"; then
1980     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.55.1; then
1981         meson=meson
1982     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
1983         meson=git
1984     elif test -e "${source_path}/meson/meson.py" ; then
1985         meson=internal
1986     else
1987         if test "$explicit_python" = yes; then
1988             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1989         else
1990             error_exit "Meson not found.  Use --meson=/path/to/meson"
1991         fi
1992     fi
1993 else
1994     # Meson uses its own Python interpreter to invoke other Python scripts,
1995     # but the user wants to use the one they specified with --python.
1996     #
1997     # We do not want to override the distro Python interpreter (and sometimes
1998     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1999     # just require --meson=git|internal together with --python.
2000     if test "$explicit_python" = yes; then
2001         case "$meson" in
2002             git | internal) ;;
2003             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
2004         esac
2005     fi
2006 fi
2007
2008 if test "$meson" = git; then
2009     git_submodules="${git_submodules} meson"
2010 fi
2011
2012 case "$meson" in
2013     git | internal)
2014         if ! $python -c 'import pkg_resources' > /dev/null 2>&1; then
2015             error_exit "Python setuptools not found"
2016         fi
2017         meson="$python ${source_path}/meson/meson.py"
2018         ;;
2019     *) meson=$(command -v meson) ;;
2020 esac
2021
2022 # Probe for ninja (used for compdb)
2023
2024 if test -z "$ninja"; then
2025     for c in ninja ninja-build samu; do
2026         if has $c; then
2027             ninja=$(command -v "$c")
2028             break
2029         fi
2030     done
2031 fi
2032
2033 # Check that the C compiler works. Doing this here before testing
2034 # the host CPU ensures that we had a valid CC to autodetect the
2035 # $cpu var (and we should bail right here if that's not the case).
2036 # It also allows the help message to be printed without a CC.
2037 write_c_skeleton;
2038 if compile_object ; then
2039   : C compiler works ok
2040 else
2041     error_exit "\"$cc\" either does not exist or does not work"
2042 fi
2043 if ! compile_prog ; then
2044     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
2045 fi
2046
2047 # Now we have handled --enable-tcg-interpreter and know we're not just
2048 # printing the help message, bail out if the host CPU isn't supported.
2049 if test "$ARCH" = "unknown"; then
2050     if test "$tcg_interpreter" = "yes" ; then
2051         echo "Unsupported CPU = $cpu, will use TCG with TCI (experimental)"
2052     else
2053         error_exit "Unsupported CPU = $cpu, try --enable-tcg-interpreter"
2054     fi
2055 fi
2056
2057 # Consult white-list to determine whether to enable werror
2058 # by default.  Only enable by default for git builds
2059 if test -z "$werror" ; then
2060     if test -e "$source_path/.git" && \
2061         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
2062         werror="yes"
2063     else
2064         werror="no"
2065     fi
2066 fi
2067
2068 if test "$bogus_os" = "yes"; then
2069     # Now that we know that we're not printing the help and that
2070     # the compiler works (so the results of the check_defines we used
2071     # to identify the OS are reliable), if we didn't recognize the
2072     # host OS we should stop now.
2073     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
2074 fi
2075
2076 # Check whether the compiler matches our minimum requirements:
2077 cat > $TMPC << EOF
2078 #if defined(__clang_major__) && defined(__clang_minor__)
2079 # ifdef __apple_build_version__
2080 #  if __clang_major__ < 5 || (__clang_major__ == 5 && __clang_minor__ < 1)
2081 #   error You need at least XCode Clang v5.1 to compile QEMU
2082 #  endif
2083 # else
2084 #  if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 4)
2085 #   error You need at least Clang v3.4 to compile QEMU
2086 #  endif
2087 # endif
2088 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
2089 # if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
2090 #  error You need at least GCC v4.8 to compile QEMU
2091 # endif
2092 #else
2093 # error You either need GCC or Clang to compiler QEMU
2094 #endif
2095 int main (void) { return 0; }
2096 EOF
2097 if ! compile_prog "" "" ; then
2098     error_exit "You need at least GCC v4.8 or Clang v3.4 (or XCode Clang v5.1)"
2099 fi
2100
2101 # Accumulate -Wfoo and -Wno-bar separately.
2102 # We will list all of the enable flags first, and the disable flags second.
2103 # Note that we do not add -Werror, because that would enable it for all
2104 # configure tests. If a configure test failed due to -Werror this would
2105 # just silently disable some features, so it's too error prone.
2106
2107 warn_flags=
2108 add_to warn_flags -Wold-style-declaration
2109 add_to warn_flags -Wold-style-definition
2110 add_to warn_flags -Wtype-limits
2111 add_to warn_flags -Wformat-security
2112 add_to warn_flags -Wformat-y2k
2113 add_to warn_flags -Winit-self
2114 add_to warn_flags -Wignored-qualifiers
2115 add_to warn_flags -Wempty-body
2116 add_to warn_flags -Wnested-externs
2117 add_to warn_flags -Wendif-labels
2118 add_to warn_flags -Wexpansion-to-defined
2119
2120 nowarn_flags=
2121 add_to nowarn_flags -Wno-initializer-overrides
2122 add_to nowarn_flags -Wno-missing-include-dirs
2123 add_to nowarn_flags -Wno-shift-negative-value
2124 add_to nowarn_flags -Wno-string-plus-int
2125 add_to nowarn_flags -Wno-typedef-redefinition
2126 add_to nowarn_flags -Wno-tautological-type-limit-compare
2127 add_to nowarn_flags -Wno-psabi
2128
2129 gcc_flags="$warn_flags $nowarn_flags"
2130
2131 cc_has_warning_flag() {
2132     write_c_skeleton;
2133
2134     # Use the positive sense of the flag when testing for -Wno-wombat
2135     # support (gcc will happily accept the -Wno- form of unknown
2136     # warning options).
2137     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2138     compile_prog "-Werror $optflag" ""
2139 }
2140
2141 for flag in $gcc_flags; do
2142     if cc_has_warning_flag $flag ; then
2143         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2144     fi
2145 done
2146
2147 if test "$stack_protector" != "no"; then
2148   cat > $TMPC << EOF
2149 int main(int argc, char *argv[])
2150 {
2151     char arr[64], *p = arr, *c = argv[0];
2152     while (*c) {
2153         *p++ = *c++;
2154     }
2155     return 0;
2156 }
2157 EOF
2158   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2159   sp_on=0
2160   for flag in $gcc_flags; do
2161     # We need to check both a compile and a link, since some compiler
2162     # setups fail only on a .c->.o compile and some only at link time
2163     if compile_object "-Werror $flag" &&
2164        compile_prog "-Werror $flag" ""; then
2165       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2166       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2167       sp_on=1
2168       break
2169     fi
2170   done
2171   if test "$stack_protector" = yes; then
2172     if test $sp_on = 0; then
2173       error_exit "Stack protector not supported"
2174     fi
2175   fi
2176 fi
2177
2178 # Disable -Wmissing-braces on older compilers that warn even for
2179 # the "universal" C zero initializer {0}.
2180 cat > $TMPC << EOF
2181 struct {
2182   int a[2];
2183 } x = {0};
2184 EOF
2185 if compile_object "-Werror" "" ; then
2186   :
2187 else
2188   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2189 fi
2190
2191 # Our module code doesn't support Windows
2192 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2193   error_exit "Modules are not available for Windows"
2194 fi
2195
2196 # module_upgrades is only reasonable if modules are enabled
2197 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2198   error_exit "Can't enable module-upgrades as Modules are not enabled"
2199 fi
2200
2201 # Static linking is not possible with modules or PIE
2202 if test "$static" = "yes" ; then
2203   if test "$modules" = "yes" ; then
2204     error_exit "static and modules are mutually incompatible"
2205   fi
2206 fi
2207
2208 # Unconditional check for compiler __thread support
2209   cat > $TMPC << EOF
2210 static __thread int tls_var;
2211 int main(void) { return tls_var; }
2212 EOF
2213
2214 if ! compile_prog "-Werror" "" ; then
2215     error_exit "Your compiler does not support the __thread specifier for " \
2216         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2217 fi
2218
2219 cat > $TMPC << EOF
2220
2221 #ifdef __linux__
2222 #  define THREAD __thread
2223 #else
2224 #  define THREAD
2225 #endif
2226 static THREAD int tls_var;
2227 int main(void) { return tls_var; }
2228 EOF
2229
2230 # Check we support --no-pie first; we will need this for building ROMs.
2231 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2232   CFLAGS_NOPIE="-fno-pie"
2233   LDFLAGS_NOPIE="-no-pie"
2234 fi
2235
2236 if test "$static" = "yes"; then
2237   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
2238     CFLAGS="-fPIE -DPIE $CFLAGS"
2239     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
2240     pie="yes"
2241   elif test "$pie" = "yes"; then
2242     error_exit "-static-pie not available due to missing toolchain support"
2243   else
2244     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
2245     pie="no"
2246   fi
2247 elif test "$pie" = "no"; then
2248   CFLAGS="$CFLAGS_NOPIE $CFLAGS"
2249   LDFLAGS="$LDFLAGS_NOPIE $LDFLAGS"
2250 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2251   CFLAGS="-fPIE -DPIE $CFLAGS"
2252   LDFLAGS="-pie $LDFLAGS"
2253   pie="yes"
2254 elif test "$pie" = "yes"; then
2255   error_exit "PIE not available due to missing toolchain support"
2256 else
2257   echo "Disabling PIE due to missing toolchain support"
2258   pie="no"
2259 fi
2260
2261 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2262 # The combination is known as "full relro", because .got.plt is read-only too.
2263 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2264   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2265 fi
2266
2267 ##########################################
2268 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2269 # use i686 as default anyway, but for those that don't, an explicit
2270 # specification is necessary
2271
2272 if test "$cpu" = "i386"; then
2273   cat > $TMPC << EOF
2274 static int sfaa(int *ptr)
2275 {
2276   return __sync_fetch_and_and(ptr, 0);
2277 }
2278
2279 int main(void)
2280 {
2281   int val = 42;
2282   val = __sync_val_compare_and_swap(&val, 0, 1);
2283   sfaa(&val);
2284   return val;
2285 }
2286 EOF
2287   if ! compile_prog "" "" ; then
2288     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2289   fi
2290 fi
2291
2292 #########################################
2293 # Solaris specific configure tool chain decisions
2294
2295 if test "$solaris" = "yes" ; then
2296   if has ar; then
2297     :
2298   else
2299     if test -f /usr/ccs/bin/ar ; then
2300       error_exit "No path includes ar" \
2301           "Add /usr/ccs/bin to your path and rerun configure"
2302     fi
2303     error_exit "No path includes ar"
2304   fi
2305 fi
2306
2307 if test -z "${target_list+xxx}" ; then
2308     for target in $default_target_list; do
2309         supported_target $target 2>/dev/null && \
2310             target_list="$target_list $target"
2311     done
2312     target_list="${target_list# }"
2313 else
2314     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2315     for target in $target_list; do
2316         # Check that we recognised the target name; this allows a more
2317         # friendly error message than if we let it fall through.
2318         case " $default_target_list " in
2319             *" $target "*)
2320                 ;;
2321             *)
2322                 error_exit "Unknown target name '$target'"
2323                 ;;
2324         esac
2325         supported_target $target || exit 1
2326     done
2327 fi
2328
2329 # see if system emulation was really requested
2330 case " $target_list " in
2331   *"-softmmu "*) softmmu=yes
2332   ;;
2333   *) softmmu=no
2334   ;;
2335 esac
2336
2337 for target in $target_list; do
2338   case "$target" in
2339     arm-softmmu | aarch64-softmmu | i386-softmmu | x86_64-softmmu)
2340       edk2_blobs="yes"
2341       ;;
2342   esac
2343 done
2344 # The EDK2 binaries are compressed with bzip2
2345 if test "$edk2_blobs" = "yes" && ! has bzip2; then
2346   error_exit "The bzip2 program is required for building QEMU"
2347 fi
2348
2349 feature_not_found() {
2350   feature=$1
2351   remedy=$2
2352
2353   error_exit "User requested feature $feature" \
2354       "configure was not able to find it." \
2355       "$remedy"
2356 }
2357
2358 # ---
2359 # big/little endian test
2360 cat > $TMPC << EOF
2361 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2362 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2363 extern int foo(short *, short *);
2364 int main(int argc, char *argv[]) {
2365     return foo(big_endian, little_endian);
2366 }
2367 EOF
2368
2369 if compile_object ; then
2370     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2371         bigendian="yes"
2372     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2373         bigendian="no"
2374     else
2375         echo big/little test failed
2376     fi
2377 else
2378     echo big/little test failed
2379 fi
2380
2381 ##########################################
2382 # system tools
2383 if test -z "$want_tools"; then
2384     if test "$softmmu" = "no"; then
2385         want_tools=no
2386     else
2387         want_tools=yes
2388     fi
2389 fi
2390
2391 ##########################################
2392 # cocoa implies not SDL or GTK
2393 # (the cocoa UI code currently assumes it is always the active UI
2394 # and doesn't interact well with other UI frontend code)
2395 if test "$cocoa" = "yes"; then
2396     if test "$sdl" = "yes"; then
2397         error_exit "Cocoa and SDL UIs cannot both be enabled at once"
2398     fi
2399     if test "$gtk" = "yes"; then
2400         error_exit "Cocoa and GTK UIs cannot both be enabled at once"
2401     fi
2402     gtk=no
2403     sdl=disabled
2404 fi
2405
2406 # Some versions of Mac OS X incorrectly define SIZE_MAX
2407 cat > $TMPC << EOF
2408 #include <stdint.h>
2409 #include <stdio.h>
2410 int main(int argc, char *argv[]) {
2411     return printf("%zu", SIZE_MAX);
2412 }
2413 EOF
2414 have_broken_size_max=no
2415 if ! compile_object -Werror ; then
2416     have_broken_size_max=yes
2417 fi
2418
2419 ##########################################
2420 # L2TPV3 probe
2421
2422 cat > $TMPC <<EOF
2423 #include <sys/socket.h>
2424 #include <linux/ip.h>
2425 int main(void) { return sizeof(struct mmsghdr); }
2426 EOF
2427 if compile_prog "" "" ; then
2428   l2tpv3=yes
2429 else
2430   l2tpv3=no
2431 fi
2432
2433 if check_include "pty.h" ; then
2434   pty_h=yes
2435 else
2436   pty_h=no
2437 fi
2438
2439 cat > $TMPC <<EOF
2440 #include <sys/mman.h>
2441 int main(int argc, char *argv[]) {
2442     return mlockall(MCL_FUTURE);
2443 }
2444 EOF
2445 if compile_prog "" "" ; then
2446   have_mlockall=yes
2447 else
2448   have_mlockall=no
2449 fi
2450
2451 #########################################
2452 # vhost interdependencies and host support
2453
2454 # vhost backends
2455 test "$vhost_user" = "" && vhost_user=yes
2456 if test "$vhost_user" = "yes" && test "$mingw32" = "yes"; then
2457   error_exit "vhost-user isn't available on win32"
2458 fi
2459 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2460 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2461   error_exit "vhost-vdpa is only available on Linux"
2462 fi
2463 test "$vhost_kernel" = "" && vhost_kernel=$linux
2464 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2465   error_exit "vhost-kernel is only available on Linux"
2466 fi
2467
2468 # vhost-kernel devices
2469 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2470 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2471   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2472 fi
2473 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2474 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2475   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2476 fi
2477
2478 # vhost-user backends
2479 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2480 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2481   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2482 fi
2483 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2484 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2485   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2486 fi
2487 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2488 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2489   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2490 fi
2491 #vhost-vdpa backends
2492 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2493 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2494   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2495 fi
2496
2497 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
2498 if test "$vhost_net" = ""; then
2499   test "$vhost_net_user" = "yes" && vhost_net=yes
2500   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
2501   test "$vhost_kernel" = "yes" && vhost_net=yes
2502 fi
2503
2504 ##########################################
2505 # MinGW / Mingw-w64 localtime_r/gmtime_r check
2506
2507 if test "$mingw32" = "yes"; then
2508     # Some versions of MinGW / Mingw-w64 lack localtime_r
2509     # and gmtime_r entirely.
2510     #
2511     # Some versions of Mingw-w64 define a macro for
2512     # localtime_r/gmtime_r.
2513     #
2514     # Some versions of Mingw-w64 will define functions
2515     # for localtime_r/gmtime_r, but only if you have
2516     # _POSIX_THREAD_SAFE_FUNCTIONS defined. For fun
2517     # though, unistd.h and pthread.h both define
2518     # that for you.
2519     #
2520     # So this #undef localtime_r and #include <unistd.h>
2521     # are not in fact redundant.
2522 cat > $TMPC << EOF
2523 #include <unistd.h>
2524 #include <time.h>
2525 #undef localtime_r
2526 int main(void) { localtime_r(NULL, NULL); return 0; }
2527 EOF
2528     if compile_prog "" "" ; then
2529         localtime_r="yes"
2530     else
2531         localtime_r="no"
2532     fi
2533 fi
2534
2535 ##########################################
2536 # pkg-config probe
2537
2538 if ! has "$pkg_config_exe"; then
2539   error_exit "pkg-config binary '$pkg_config_exe' not found"
2540 fi
2541
2542 ##########################################
2543 # NPTL probe
2544
2545 if test "$linux_user" = "yes"; then
2546   cat > $TMPC <<EOF
2547 #include <sched.h>
2548 #include <linux/futex.h>
2549 int main(void) {
2550 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2551 #error bork
2552 #endif
2553   return 0;
2554 }
2555 EOF
2556   if ! compile_object ; then
2557     feature_not_found "nptl" "Install glibc and linux kernel headers."
2558   fi
2559 fi
2560
2561 ##########################################
2562 # lzo check
2563
2564 if test "$lzo" != "no" ; then
2565     cat > $TMPC << EOF
2566 #include <lzo/lzo1x.h>
2567 int main(void) { lzo_version(); return 0; }
2568 EOF
2569     if compile_prog "" "-llzo2" ; then
2570         lzo_libs="-llzo2"
2571         lzo="yes"
2572     else
2573         if test "$lzo" = "yes"; then
2574             feature_not_found "liblzo2" "Install liblzo2 devel"
2575         fi
2576         lzo="no"
2577     fi
2578 fi
2579
2580 ##########################################
2581 # snappy check
2582
2583 if test "$snappy" != "no" ; then
2584     cat > $TMPC << EOF
2585 #include <snappy-c.h>
2586 int main(void) { snappy_max_compressed_length(4096); return 0; }
2587 EOF
2588     if compile_prog "" "-lsnappy" ; then
2589         snappy_libs='-lsnappy'
2590         snappy="yes"
2591     else
2592         if test "$snappy" = "yes"; then
2593             feature_not_found "libsnappy" "Install libsnappy devel"
2594         fi
2595         snappy="no"
2596     fi
2597 fi
2598
2599 ##########################################
2600 # bzip2 check
2601
2602 if test "$bzip2" != "no" ; then
2603     cat > $TMPC << EOF
2604 #include <bzlib.h>
2605 int main(void) { BZ2_bzlibVersion(); return 0; }
2606 EOF
2607     if compile_prog "" "-lbz2" ; then
2608         bzip2="yes"
2609     else
2610         if test "$bzip2" = "yes"; then
2611             feature_not_found "libbzip2" "Install libbzip2 devel"
2612         fi
2613         bzip2="no"
2614     fi
2615 fi
2616
2617 ##########################################
2618 # lzfse check
2619
2620 if test "$lzfse" != "no" ; then
2621     cat > $TMPC << EOF
2622 #include <lzfse.h>
2623 int main(void) { lzfse_decode_scratch_size(); return 0; }
2624 EOF
2625     if compile_prog "" "-llzfse" ; then
2626         lzfse="yes"
2627     else
2628         if test "$lzfse" = "yes"; then
2629             feature_not_found "lzfse" "Install lzfse devel"
2630         fi
2631         lzfse="no"
2632     fi
2633 fi
2634
2635 ##########################################
2636 # zstd check
2637
2638 if test "$zstd" != "no" ; then
2639     libzstd_minver="1.4.0"
2640     if $pkg_config --atleast-version=$libzstd_minver libzstd ; then
2641         zstd_cflags="$($pkg_config --cflags libzstd)"
2642         zstd_libs="$($pkg_config --libs libzstd)"
2643         zstd="yes"
2644     else
2645         if test "$zstd" = "yes" ; then
2646             feature_not_found "libzstd" "Install libzstd devel"
2647         fi
2648         zstd="no"
2649     fi
2650 fi
2651
2652 ##########################################
2653 # libseccomp check
2654
2655 if test "$seccomp" != "no" ; then
2656     libseccomp_minver="2.3.0"
2657     if $pkg_config --atleast-version=$libseccomp_minver libseccomp ; then
2658         seccomp_cflags="$($pkg_config --cflags libseccomp)"
2659         seccomp_libs="$($pkg_config --libs libseccomp)"
2660         seccomp="yes"
2661     else
2662         if test "$seccomp" = "yes" ; then
2663             feature_not_found "libseccomp" \
2664                  "Install libseccomp devel >= $libseccomp_minver"
2665         fi
2666         seccomp="no"
2667     fi
2668 fi
2669 ##########################################
2670 # xen probe
2671
2672 if test "$xen" != "no" ; then
2673   # Check whether Xen library path is specified via --extra-ldflags to avoid
2674   # overriding this setting with pkg-config output. If not, try pkg-config
2675   # to obtain all needed flags.
2676
2677   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2678      $pkg_config --exists xencontrol ; then
2679     xen_ctrl_version="$(printf '%d%02d%02d' \
2680       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2681     xen=yes
2682     xen_pc="xencontrol xenstore xenguest xenforeignmemory xengnttab"
2683     xen_pc="$xen_pc xenevtchn xendevicemodel"
2684     if $pkg_config --exists xentoolcore; then
2685       xen_pc="$xen_pc xentoolcore"
2686     fi
2687     xen_cflags="$($pkg_config --cflags $xen_pc)"
2688     xen_libs="$($pkg_config --libs $xen_pc)"
2689   else
2690
2691     xen_libs="-lxenstore -lxenctrl -lxenguest"
2692     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2693
2694     # First we test whether Xen headers and libraries are available.
2695     # If no, we are done and there is no Xen support.
2696     # If yes, more tests are run to detect the Xen version.
2697
2698     # Xen (any)
2699     cat > $TMPC <<EOF
2700 #include <xenctrl.h>
2701 int main(void) {
2702   return 0;
2703 }
2704 EOF
2705     if ! compile_prog "" "$xen_libs" ; then
2706       # Xen not found
2707       if test "$xen" = "yes" ; then
2708         feature_not_found "xen" "Install xen devel"
2709       fi
2710       xen=no
2711
2712     # Xen unstable
2713     elif
2714         cat > $TMPC <<EOF &&
2715 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2716 #define __XEN_TOOLS__
2717 #include <xendevicemodel.h>
2718 #include <xenforeignmemory.h>
2719 int main(void) {
2720   xendevicemodel_handle *xd;
2721   xenforeignmemory_handle *xfmem;
2722
2723   xd = xendevicemodel_open(0, 0);
2724   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2725
2726   xfmem = xenforeignmemory_open(0, 0);
2727   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2728
2729   return 0;
2730 }
2731 EOF
2732         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2733       then
2734       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2735       xen_ctrl_version=41100
2736       xen=yes
2737     elif
2738         cat > $TMPC <<EOF &&
2739 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2740 #include <xenforeignmemory.h>
2741 #include <xentoolcore.h>
2742 int main(void) {
2743   xenforeignmemory_handle *xfmem;
2744
2745   xfmem = xenforeignmemory_open(0, 0);
2746   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2747   xentoolcore_restrict_all(0);
2748
2749   return 0;
2750 }
2751 EOF
2752         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2753       then
2754       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2755       xen_ctrl_version=41000
2756       xen=yes
2757     elif
2758         cat > $TMPC <<EOF &&
2759 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2760 #define __XEN_TOOLS__
2761 #include <xendevicemodel.h>
2762 int main(void) {
2763   xendevicemodel_handle *xd;
2764
2765   xd = xendevicemodel_open(0, 0);
2766   xendevicemodel_close(xd);
2767
2768   return 0;
2769 }
2770 EOF
2771         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2772       then
2773       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2774       xen_ctrl_version=40900
2775       xen=yes
2776     elif
2777         cat > $TMPC <<EOF &&
2778 /*
2779  * If we have stable libs the we don't want the libxc compat
2780  * layers, regardless of what CFLAGS we may have been given.
2781  *
2782  * Also, check if xengnttab_grant_copy_segment_t is defined and
2783  * grant copy operation is implemented.
2784  */
2785 #undef XC_WANT_COMPAT_EVTCHN_API
2786 #undef XC_WANT_COMPAT_GNTTAB_API
2787 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2788 #include <xenctrl.h>
2789 #include <xenstore.h>
2790 #include <xenevtchn.h>
2791 #include <xengnttab.h>
2792 #include <xenforeignmemory.h>
2793 #include <stdint.h>
2794 #include <xen/hvm/hvm_info_table.h>
2795 #if !defined(HVM_MAX_VCPUS)
2796 # error HVM_MAX_VCPUS not defined
2797 #endif
2798 int main(void) {
2799   xc_interface *xc = NULL;
2800   xenforeignmemory_handle *xfmem;
2801   xenevtchn_handle *xe;
2802   xengnttab_handle *xg;
2803   xengnttab_grant_copy_segment_t* seg = NULL;
2804
2805   xs_daemon_open();
2806
2807   xc = xc_interface_open(0, 0, 0);
2808   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2809   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2810   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2811   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2812
2813   xfmem = xenforeignmemory_open(0, 0);
2814   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2815
2816   xe = xenevtchn_open(0, 0);
2817   xenevtchn_fd(xe);
2818
2819   xg = xengnttab_open(0, 0);
2820   xengnttab_grant_copy(xg, 0, seg);
2821
2822   return 0;
2823 }
2824 EOF
2825         compile_prog "" "$xen_libs $xen_stable_libs"
2826       then
2827       xen_ctrl_version=40800
2828       xen=yes
2829     elif
2830         cat > $TMPC <<EOF &&
2831 /*
2832  * If we have stable libs the we don't want the libxc compat
2833  * layers, regardless of what CFLAGS we may have been given.
2834  */
2835 #undef XC_WANT_COMPAT_EVTCHN_API
2836 #undef XC_WANT_COMPAT_GNTTAB_API
2837 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2838 #include <xenctrl.h>
2839 #include <xenstore.h>
2840 #include <xenevtchn.h>
2841 #include <xengnttab.h>
2842 #include <xenforeignmemory.h>
2843 #include <stdint.h>
2844 #include <xen/hvm/hvm_info_table.h>
2845 #if !defined(HVM_MAX_VCPUS)
2846 # error HVM_MAX_VCPUS not defined
2847 #endif
2848 int main(void) {
2849   xc_interface *xc = NULL;
2850   xenforeignmemory_handle *xfmem;
2851   xenevtchn_handle *xe;
2852   xengnttab_handle *xg;
2853
2854   xs_daemon_open();
2855
2856   xc = xc_interface_open(0, 0, 0);
2857   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2858   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2859   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2860   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2861
2862   xfmem = xenforeignmemory_open(0, 0);
2863   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2864
2865   xe = xenevtchn_open(0, 0);
2866   xenevtchn_fd(xe);
2867
2868   xg = xengnttab_open(0, 0);
2869   xengnttab_map_grant_ref(xg, 0, 0, 0);
2870
2871   return 0;
2872 }
2873 EOF
2874         compile_prog "" "$xen_libs $xen_stable_libs"
2875       then
2876       xen_ctrl_version=40701
2877       xen=yes
2878
2879     # Xen 4.6
2880     elif
2881         cat > $TMPC <<EOF &&
2882 #include <xenctrl.h>
2883 #include <xenstore.h>
2884 #include <stdint.h>
2885 #include <xen/hvm/hvm_info_table.h>
2886 #if !defined(HVM_MAX_VCPUS)
2887 # error HVM_MAX_VCPUS not defined
2888 #endif
2889 int main(void) {
2890   xc_interface *xc;
2891   xs_daemon_open();
2892   xc = xc_interface_open(0, 0, 0);
2893   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2894   xc_gnttab_open(NULL, 0);
2895   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2896   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2897   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2898   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2899   return 0;
2900 }
2901 EOF
2902         compile_prog "" "$xen_libs"
2903       then
2904       xen_ctrl_version=40600
2905       xen=yes
2906
2907     # Xen 4.5
2908     elif
2909         cat > $TMPC <<EOF &&
2910 #include <xenctrl.h>
2911 #include <xenstore.h>
2912 #include <stdint.h>
2913 #include <xen/hvm/hvm_info_table.h>
2914 #if !defined(HVM_MAX_VCPUS)
2915 # error HVM_MAX_VCPUS not defined
2916 #endif
2917 int main(void) {
2918   xc_interface *xc;
2919   xs_daemon_open();
2920   xc = xc_interface_open(0, 0, 0);
2921   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2922   xc_gnttab_open(NULL, 0);
2923   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2924   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2925   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2926   return 0;
2927 }
2928 EOF
2929         compile_prog "" "$xen_libs"
2930       then
2931       xen_ctrl_version=40500
2932       xen=yes
2933
2934     elif
2935         cat > $TMPC <<EOF &&
2936 #include <xenctrl.h>
2937 #include <xenstore.h>
2938 #include <stdint.h>
2939 #include <xen/hvm/hvm_info_table.h>
2940 #if !defined(HVM_MAX_VCPUS)
2941 # error HVM_MAX_VCPUS not defined
2942 #endif
2943 int main(void) {
2944   xc_interface *xc;
2945   xs_daemon_open();
2946   xc = xc_interface_open(0, 0, 0);
2947   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2948   xc_gnttab_open(NULL, 0);
2949   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2950   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2951   return 0;
2952 }
2953 EOF
2954         compile_prog "" "$xen_libs"
2955       then
2956       xen_ctrl_version=40200
2957       xen=yes
2958
2959     else
2960       if test "$xen" = "yes" ; then
2961         feature_not_found "xen (unsupported version)" \
2962                           "Install a supported xen (xen 4.2 or newer)"
2963       fi
2964       xen=no
2965     fi
2966
2967     if test "$xen" = yes; then
2968       if test $xen_ctrl_version -ge 40701  ; then
2969         xen_libs="$xen_libs $xen_stable_libs "
2970       fi
2971     fi
2972   fi
2973 fi
2974
2975 if test "$xen_pci_passthrough" != "no"; then
2976   if test "$xen" = "yes" && test "$linux" = "yes"; then
2977     xen_pci_passthrough=yes
2978   else
2979     if test "$xen_pci_passthrough" = "yes"; then
2980       error_exit "User requested feature Xen PCI Passthrough" \
2981           " but this feature requires /sys from Linux"
2982     fi
2983     xen_pci_passthrough=no
2984   fi
2985 fi
2986
2987 ##########################################
2988 # Windows Hypervisor Platform accelerator (WHPX) check
2989 if test "$whpx" = "yes" && test "$ARCH" != "x86_64"; then
2990   error_exit "WHPX requires 64-bit host"
2991 fi
2992 if test "$whpx" != "no" && test "$ARCH" = "x86_64"; then
2993     if check_include "WinHvPlatform.h" && check_include "WinHvEmulation.h"; then
2994         whpx="yes"
2995     else
2996         if test "$whpx" = "yes"; then
2997             feature_not_found "WinHvPlatform" "WinHvEmulation is not installed"
2998         fi
2999         whpx="no"
3000     fi
3001 fi
3002
3003 ##########################################
3004 # gettext probe
3005 if test "$gettext" != "false" ; then
3006   if has xgettext; then
3007     gettext=true
3008   else
3009     if test "$gettext" = "true" ; then
3010       feature_not_found "gettext" "Install xgettext binary"
3011     fi
3012     gettext=false
3013   fi
3014 fi
3015
3016 ##########################################
3017 # Sparse probe
3018 if test "$sparse" != "no" ; then
3019   if has sparse; then
3020     sparse=yes
3021   else
3022     if test "$sparse" = "yes" ; then
3023       feature_not_found "sparse" "Install sparse binary"
3024     fi
3025     sparse=no
3026   fi
3027 fi
3028
3029 ##########################################
3030 # X11 probe
3031 if $pkg_config --exists "x11"; then
3032     have_x11=yes
3033     x11_cflags=$($pkg_config --cflags x11)
3034     x11_libs=$($pkg_config --libs x11)
3035 fi
3036
3037 ##########################################
3038 # GTK probe
3039
3040 if test "$gtk" != "no"; then
3041     gtkpackage="gtk+-3.0"
3042     gtkx11package="gtk+-x11-3.0"
3043     gtkversion="3.22.0"
3044     if $pkg_config --exists "$gtkpackage >= $gtkversion"; then
3045         gtk_cflags=$($pkg_config --cflags $gtkpackage)
3046         gtk_libs=$($pkg_config --libs $gtkpackage)
3047         gtk_version=$($pkg_config --modversion $gtkpackage)
3048         if $pkg_config --exists "$gtkx11package >= $gtkversion"; then
3049             need_x11=yes
3050             gtk_cflags="$gtk_cflags $x11_cflags"
3051             gtk_libs="$gtk_libs $x11_libs"
3052         fi
3053         gtk="yes"
3054     elif test "$gtk" = "yes"; then
3055         feature_not_found "gtk" "Install gtk3-devel"
3056     else
3057         gtk="no"
3058     fi
3059 fi
3060
3061
3062 ##########################################
3063 # GNUTLS probe
3064
3065 if test "$gnutls" != "no"; then
3066     pass="no"
3067     if $pkg_config --exists "gnutls >= 3.1.18"; then
3068         gnutls_cflags=$($pkg_config --cflags gnutls)
3069         gnutls_libs=$($pkg_config --libs gnutls)
3070         # Packaging for the static libraries is not always correct.
3071         # At least ubuntu 18.04 ships only shared libraries.
3072         write_c_skeleton
3073         if compile_prog "" "$gnutls_libs" ; then
3074             pass="yes"
3075         fi
3076     fi
3077     if test "$pass" = "no" && test "$gnutls" = "yes"; then
3078         feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
3079     else
3080         gnutls="$pass"
3081     fi
3082 fi
3083
3084
3085 # If user didn't give a --disable/enable-gcrypt flag,
3086 # then mark as disabled if user requested nettle
3087 # explicitly
3088 if test -z "$gcrypt"
3089 then
3090     if test "$nettle" = "yes"
3091     then
3092         gcrypt="no"
3093     fi
3094 fi
3095
3096 # If user didn't give a --disable/enable-nettle flag,
3097 # then mark as disabled if user requested gcrypt
3098 # explicitly
3099 if test -z "$nettle"
3100 then
3101     if test "$gcrypt" = "yes"
3102     then
3103         nettle="no"
3104     fi
3105 fi
3106
3107 has_libgcrypt() {
3108     if ! has "libgcrypt-config"
3109     then
3110         return 1
3111     fi
3112
3113     if test -n "$cross_prefix"
3114     then
3115         host=$(libgcrypt-config --host)
3116         if test "$host-" != $cross_prefix
3117         then
3118             return 1
3119         fi
3120     fi
3121
3122     maj=`libgcrypt-config --version | awk -F . '{print $1}'`
3123     min=`libgcrypt-config --version | awk -F . '{print $2}'`
3124
3125     if test $maj != 1 || test $min -lt 5
3126     then
3127        return 1
3128     fi
3129
3130     return 0
3131 }
3132
3133
3134 if test "$nettle" != "no"; then
3135     pass="no"
3136     if $pkg_config --exists "nettle >= 2.7.1"; then
3137         nettle_cflags=$($pkg_config --cflags nettle)
3138         nettle_libs=$($pkg_config --libs nettle)
3139         nettle_version=$($pkg_config --modversion nettle)
3140         # Link test to make sure the given libraries work (e.g for static).
3141         write_c_skeleton
3142         if compile_prog "" "$nettle_libs" ; then
3143             if test -z "$gcrypt"; then
3144                gcrypt="no"
3145             fi
3146             pass="yes"
3147         fi
3148     fi
3149     if test "$pass" = "yes"
3150     then
3151         cat > $TMPC << EOF
3152 #include <nettle/xts.h>
3153 int main(void) {
3154   return 0;
3155 }
3156 EOF
3157         if compile_prog "$nettle_cflags" "$nettle_libs" ; then
3158             nettle_xts=yes
3159             qemu_private_xts=no
3160         fi
3161     fi
3162     if test "$pass" = "no" && test "$nettle" = "yes"; then
3163         feature_not_found "nettle" "Install nettle devel >= 2.7.1"
3164     else
3165         nettle="$pass"
3166     fi
3167 fi
3168
3169 if test "$gcrypt" != "no"; then
3170     pass="no"
3171     if has_libgcrypt; then
3172         gcrypt_cflags=$(libgcrypt-config --cflags)
3173         gcrypt_libs=$(libgcrypt-config --libs)
3174         # Debian has removed -lgpg-error from libgcrypt-config
3175         # as it "spreads unnecessary dependencies" which in
3176         # turn breaks static builds...
3177         if test "$static" = "yes"
3178         then
3179             gcrypt_libs="$gcrypt_libs -lgpg-error"
3180         fi
3181
3182         # Link test to make sure the given libraries work (e.g for static).
3183         write_c_skeleton
3184         if compile_prog "" "$gcrypt_libs" ; then
3185             pass="yes"
3186         fi
3187     fi
3188     if test "$pass" = "yes"; then
3189         gcrypt="yes"
3190         cat > $TMPC << EOF
3191 #include <gcrypt.h>
3192 int main(void) {
3193   gcry_mac_hd_t handle;
3194   gcry_mac_open(&handle, GCRY_MAC_HMAC_MD5,
3195                 GCRY_MAC_FLAG_SECURE, NULL);
3196   return 0;
3197 }
3198 EOF
3199         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3200             gcrypt_hmac=yes
3201         fi
3202         cat > $TMPC << EOF
3203 #include <gcrypt.h>
3204 int main(void) {
3205   gcry_cipher_hd_t handle;
3206   gcry_cipher_open(&handle, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_XTS, 0);
3207   return 0;
3208 }
3209 EOF
3210         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3211             gcrypt_xts=yes
3212             qemu_private_xts=no
3213         fi
3214     elif test "$gcrypt" = "yes"; then
3215         feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
3216     else
3217         gcrypt="no"
3218     fi
3219 fi
3220
3221
3222 if test "$gcrypt" = "yes" && test "$nettle" = "yes"
3223 then
3224     error_exit "Only one of gcrypt & nettle can be enabled"
3225 fi
3226
3227 ##########################################
3228 # libtasn1 - only for the TLS creds/session test suite
3229
3230 tasn1=yes
3231 tasn1_cflags=""
3232 tasn1_libs=""
3233 if $pkg_config --exists "libtasn1"; then
3234     tasn1_cflags=$($pkg_config --cflags libtasn1)
3235     tasn1_libs=$($pkg_config --libs libtasn1)
3236 else
3237     tasn1=no
3238 fi
3239
3240
3241 ##########################################
3242 # PAM probe
3243
3244 if test "$auth_pam" != "no"; then
3245     cat > $TMPC <<EOF
3246 #include <security/pam_appl.h>
3247 #include <stdio.h>
3248 int main(void) {
3249    const char *service_name = "qemu";
3250    const char *user = "frank";
3251    const struct pam_conv pam_conv = { 0 };
3252    pam_handle_t *pamh = NULL;
3253    pam_start(service_name, user, &pam_conv, &pamh);
3254    return 0;
3255 }
3256 EOF
3257     if compile_prog "" "-lpam" ; then
3258         auth_pam=yes
3259     else
3260         if test "$auth_pam" = "yes"; then
3261             feature_not_found "PAM" "Install PAM development package"
3262         else
3263             auth_pam=no
3264         fi
3265     fi
3266 fi
3267
3268 ##########################################
3269 # getifaddrs (for tests/test-io-channel-socket )
3270
3271 have_ifaddrs_h=yes
3272 if ! check_include "ifaddrs.h" ; then
3273   have_ifaddrs_h=no
3274 fi
3275
3276 #########################################
3277 # libdrm check
3278 have_drm_h=no
3279 if check_include "libdrm/drm.h" ; then
3280     have_drm_h=yes
3281 fi
3282
3283 #########################################
3284 # sys/signal.h check
3285 have_sys_signal_h=no
3286 if check_include "sys/signal.h" ; then
3287   have_sys_signal_h=yes
3288 fi
3289
3290 ##########################################
3291 # VTE probe
3292
3293 if test "$vte" != "no"; then
3294     vteminversion="0.32.0"
3295     if $pkg_config --exists "vte-2.91"; then
3296       vtepackage="vte-2.91"
3297     else
3298       vtepackage="vte-2.90"
3299     fi
3300     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
3301         vte_cflags=$($pkg_config --cflags $vtepackage)
3302         vte_libs=$($pkg_config --libs $vtepackage)
3303         vteversion=$($pkg_config --modversion $vtepackage)
3304         vte="yes"
3305     elif test "$vte" = "yes"; then
3306         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
3307     else
3308         vte="no"
3309     fi
3310 fi
3311
3312 ##########################################
3313 # RDMA needs OpenFabrics libraries
3314 if test "$rdma" != "no" ; then
3315   cat > $TMPC <<EOF
3316 #include <rdma/rdma_cma.h>
3317 int main(void) { return 0; }
3318 EOF
3319   rdma_libs="-lrdmacm -libverbs -libumad"
3320   if compile_prog "" "$rdma_libs" ; then
3321     rdma="yes"
3322   else
3323     if test "$rdma" = "yes" ; then
3324         error_exit \
3325             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
3326             " Your options:" \
3327             "  (1) Fast: Install infiniband packages (devel) from your distro." \
3328             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
3329             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
3330     fi
3331     rdma="no"
3332   fi
3333 fi
3334
3335 ##########################################
3336 # PVRDMA detection
3337
3338 cat > $TMPC <<EOF &&
3339 #include <sys/mman.h>
3340
3341 int
3342 main(void)
3343 {
3344     char buf = 0;
3345     void *addr = &buf;
3346     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3347
3348     return 0;
3349 }
3350 EOF
3351
3352 if test "$rdma" = "yes" ; then
3353     case "$pvrdma" in
3354     "")
3355         if compile_prog "" ""; then
3356             pvrdma="yes"
3357         else
3358             pvrdma="no"
3359         fi
3360         ;;
3361     "yes")
3362         if ! compile_prog "" ""; then
3363             error_exit "PVRDMA is not supported since mremap is not implemented"
3364         fi
3365         pvrdma="yes"
3366         ;;
3367     "no")
3368         pvrdma="no"
3369         ;;
3370     esac
3371 else
3372     if test "$pvrdma" = "yes" ; then
3373         error_exit "PVRDMA requires rdma suppport"
3374     fi
3375     pvrdma="no"
3376 fi
3377
3378 # Let's see if enhanced reg_mr is supported
3379 if test "$pvrdma" = "yes" ; then
3380
3381 cat > $TMPC <<EOF &&
3382 #include <infiniband/verbs.h>
3383
3384 int
3385 main(void)
3386 {
3387     struct ibv_mr *mr;
3388     struct ibv_pd *pd = NULL;
3389     size_t length = 10;
3390     uint64_t iova = 0;
3391     int access = 0;
3392     void *addr = NULL;
3393
3394     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
3395
3396     ibv_dereg_mr(mr);
3397
3398     return 0;
3399 }
3400 EOF
3401     if ! compile_prog "" "-libverbs"; then
3402         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
3403     fi
3404 fi
3405
3406 ##########################################
3407 # xfsctl() probe, used for file-posix.c
3408 if test "$xfs" != "no" ; then
3409   cat > $TMPC << EOF
3410 #include <stddef.h>  /* NULL */
3411 #include <xfs/xfs.h>
3412 int main(void)
3413 {
3414     xfsctl(NULL, 0, 0, NULL);
3415     return 0;
3416 }
3417 EOF
3418   if compile_prog "" "" ; then
3419     xfs="yes"
3420   else
3421     if test "$xfs" = "yes" ; then
3422       feature_not_found "xfs" "Install xfsprogs/xfslibs devel"
3423     fi
3424     xfs=no
3425   fi
3426 fi
3427
3428 ##########################################
3429 # vde libraries probe
3430 if test "$vde" != "no" ; then
3431   vde_libs="-lvdeplug"
3432   cat > $TMPC << EOF
3433 #include <libvdeplug.h>
3434 int main(void)
3435 {
3436     struct vde_open_args a = {0, 0, 0};
3437     char s[] = "";
3438     vde_open(s, s, &a);
3439     return 0;
3440 }
3441 EOF
3442   if compile_prog "" "$vde_libs" ; then
3443     vde=yes
3444   else
3445     if test "$vde" = "yes" ; then
3446       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3447     fi
3448     vde=no
3449   fi
3450 fi
3451
3452 ##########################################
3453 # netmap support probe
3454 # Apart from looking for netmap headers, we make sure that the host API version
3455 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3456 # a minor/major version number. Minor new features will be marked with values up
3457 # to 15, and if something happens that requires a change to the backend we will
3458 # move above 15, submit the backend fixes and modify this two bounds.
3459 if test "$netmap" != "no" ; then
3460   cat > $TMPC << EOF
3461 #include <inttypes.h>
3462 #include <net/if.h>
3463 #include <net/netmap.h>
3464 #include <net/netmap_user.h>
3465 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3466 #error
3467 #endif
3468 int main(void) { return 0; }
3469 EOF
3470   if compile_prog "" "" ; then
3471     netmap=yes
3472   else
3473     if test "$netmap" = "yes" ; then
3474       feature_not_found "netmap"
3475     fi
3476     netmap=no
3477   fi
3478 fi
3479
3480 ##########################################
3481 # libcap-ng library probe
3482 if test "$cap_ng" != "no" ; then
3483   cap_libs="-lcap-ng"
3484   cat > $TMPC << EOF
3485 #include <cap-ng.h>
3486 int main(void)
3487 {
3488     capng_capability_to_name(CAPNG_EFFECTIVE);
3489     return 0;
3490 }
3491 EOF
3492   if compile_prog "" "$cap_libs" ; then
3493     cap_ng=yes
3494   else
3495     if test "$cap_ng" = "yes" ; then
3496       feature_not_found "cap_ng" "Install libcap-ng devel"
3497     fi
3498     cap_ng=no
3499   fi
3500 fi
3501
3502 ##########################################
3503 # Sound support libraries probe
3504
3505 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3506 for drv in $audio_drv_list; do
3507     case $drv in
3508     alsa | try-alsa)
3509     if $pkg_config alsa --exists; then
3510         alsa_libs=$($pkg_config alsa --libs)
3511         alsa_cflags=$($pkg_config alsa --cflags)
3512         alsa=yes
3513         if test "$drv" = "try-alsa"; then
3514             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3515         fi
3516     else
3517         if test "$drv" = "try-alsa"; then
3518             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3519         else
3520             error_exit "$drv check failed" \
3521                 "Make sure to have the $drv libs and headers installed."
3522         fi
3523     fi
3524     ;;
3525
3526     pa | try-pa)
3527     if $pkg_config libpulse --exists; then
3528         libpulse=yes
3529         pulse_libs=$($pkg_config libpulse --libs)
3530         pulse_cflags=$($pkg_config libpulse --cflags)
3531         if test "$drv" = "try-pa"; then
3532             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3533         fi
3534     else
3535         if test "$drv" = "try-pa"; then
3536             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3537         else
3538             error_exit "$drv check failed" \
3539                 "Make sure to have the $drv libs and headers installed."
3540         fi
3541     fi
3542     ;;
3543
3544     sdl)
3545     if test "$sdl" = "no"; then
3546         error_exit "sdl not found or disabled, can not use sdl audio driver"
3547     fi
3548     ;;
3549
3550     try-sdl)
3551     if test "$sdl" = "no"; then
3552         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3553     else
3554         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3555     fi
3556     ;;
3557
3558     coreaudio)
3559       coreaudio_libs="-framework CoreAudio"
3560     ;;
3561
3562     dsound)
3563       dsound_libs="-lole32 -ldxguid"
3564       audio_win_int="yes"
3565     ;;
3566
3567     oss)
3568       oss_libs="$oss_lib"
3569     ;;
3570
3571     jack | try-jack)
3572     if $pkg_config jack --exists; then
3573         libjack=yes
3574         jack_libs=$($pkg_config jack --libs)
3575         if test "$drv" = "try-jack"; then
3576             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3577         fi
3578     else
3579         if test "$drv" = "try-jack"; then
3580             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3581         else
3582             error_exit "$drv check failed" \
3583                 "Make sure to have the $drv libs and headers installed."
3584         fi
3585     fi
3586     ;;
3587
3588     *)
3589     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3590         error_exit "Unknown driver '$drv' selected" \
3591             "Possible drivers are: $audio_possible_drivers"
3592     }
3593     ;;
3594     esac
3595 done
3596
3597 ##########################################
3598 # BrlAPI probe
3599
3600 if test "$brlapi" != "no" ; then
3601   brlapi_libs="-lbrlapi"
3602   cat > $TMPC << EOF
3603 #include <brlapi.h>
3604 #include <stddef.h>
3605 int main( void ) { return brlapi__openConnection (NULL, NULL, NULL); }
3606 EOF
3607   if compile_prog "" "$brlapi_libs" ; then
3608     brlapi=yes
3609   else
3610     if test "$brlapi" = "yes" ; then
3611       feature_not_found "brlapi" "Install brlapi devel"
3612     fi
3613     brlapi=no
3614   fi
3615 fi
3616
3617 ##########################################
3618 # iconv probe
3619 if test "$iconv" != "no" ; then
3620   cat > $TMPC << EOF
3621 #include <iconv.h>
3622 int main(void) {
3623   iconv_t conv = iconv_open("WCHAR_T", "UCS-2");
3624   return conv != (iconv_t) -1;
3625 }
3626 EOF
3627   iconv_prefix_list="/usr/local:/usr"
3628   iconv_lib_list=":-liconv"
3629   IFS=:
3630   for iconv_prefix in $iconv_prefix_list; do
3631     IFS=:
3632     iconv_cflags="-I$iconv_prefix/include"
3633     iconv_ldflags="-L$iconv_prefix/lib"
3634     for iconv_link in $iconv_lib_list; do
3635       unset IFS
3636       iconv_lib="$iconv_ldflags $iconv_link"
3637       echo "looking at iconv in '$iconv_cflags' '$iconv_lib'" >> config.log
3638       if compile_prog "$iconv_cflags" "$iconv_lib" ; then
3639         iconv_found=yes
3640         break
3641       fi
3642     done
3643     if test "$iconv_found" = yes ; then
3644       break
3645     fi
3646   done
3647   if test "$iconv_found" = "yes" ; then
3648     iconv=yes
3649   else
3650     if test "$iconv" = "yes" ; then
3651       feature_not_found "iconv" "Install iconv devel"
3652     fi
3653     iconv=no
3654   fi
3655 fi
3656
3657 ##########################################
3658 # curses probe
3659 if test "$iconv" = "no" ; then
3660   # curses will need iconv
3661   curses=no
3662 fi
3663 if test "$curses" != "no" ; then
3664   if test "$mingw32" = "yes" ; then
3665     curses_inc_list="$($pkg_config --cflags ncurses 2>/dev/null):"
3666     curses_lib_list="$($pkg_config --libs ncurses 2>/dev/null):-lpdcurses"
3667   else
3668     curses_inc_list="$($pkg_config --cflags ncursesw 2>/dev/null):-I/usr/include/ncursesw:"
3669     curses_lib_list="$($pkg_config --libs ncursesw 2>/dev/null):-lncursesw:-lcursesw"
3670   fi
3671   curses_found=no
3672   cat > $TMPC << EOF
3673 #include <locale.h>
3674 #include <curses.h>
3675 #include <wchar.h>
3676 #include <langinfo.h>
3677 int main(void) {
3678   const char *codeset;
3679   wchar_t wch = L'w';
3680   setlocale(LC_ALL, "");
3681   resize_term(0, 0);
3682   addwstr(L"wide chars\n");
3683   addnwstr(&wch, 1);
3684   add_wch(WACS_DEGREE);
3685   codeset = nl_langinfo(CODESET);
3686   return codeset != 0;
3687 }
3688 EOF
3689   IFS=:
3690   for curses_inc in $curses_inc_list; do
3691     # Make sure we get the wide character prototypes
3692     curses_inc="-DNCURSES_WIDECHAR $curses_inc"
3693     IFS=:
3694     for curses_lib in $curses_lib_list; do
3695       unset IFS
3696       if compile_prog "$curses_inc" "$curses_lib" ; then
3697         curses_found=yes
3698         break
3699       fi
3700     done
3701     if test "$curses_found" = yes ; then
3702       break
3703     fi
3704   done
3705   unset IFS
3706   if test "$curses_found" = "yes" ; then
3707     curses=yes
3708   else
3709     if test "$curses" = "yes" ; then
3710       feature_not_found "curses" "Install ncurses devel"
3711     fi
3712     curses=no
3713   fi
3714 fi
3715
3716 ##########################################
3717 # curl probe
3718 if test "$curl" != "no" ; then
3719   if $pkg_config libcurl --exists; then
3720     curlconfig="$pkg_config libcurl"
3721   else
3722     curlconfig=curl-config
3723   fi
3724   cat > $TMPC << EOF
3725 #include <curl/curl.h>
3726 int main(void) { curl_easy_init(); curl_multi_setopt(0, 0, 0); return 0; }
3727 EOF
3728   curl_cflags=$($curlconfig --cflags 2>/dev/null)
3729   curl_libs=$($curlconfig --libs 2>/dev/null)
3730   if compile_prog "$curl_cflags" "$curl_libs" ; then
3731     curl=yes
3732   else
3733     if test "$curl" = "yes" ; then
3734       feature_not_found "curl" "Install libcurl devel"
3735     fi
3736     curl=no
3737   fi
3738 fi # test "$curl"
3739
3740 ##########################################
3741 # glib support probe
3742
3743 glib_req_ver=2.48
3744 glib_modules=gthread-2.0
3745 if test "$modules" = yes; then
3746     glib_modules="$glib_modules gmodule-export-2.0"
3747 fi
3748 if test "$plugins" = yes; then
3749     glib_modules="$glib_modules gmodule-2.0"
3750 fi
3751
3752 for i in $glib_modules; do
3753     if $pkg_config --atleast-version=$glib_req_ver $i; then
3754         glib_cflags=$($pkg_config --cflags $i)
3755         glib_libs=$($pkg_config --libs $i)
3756     else
3757         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3758     fi
3759 done
3760
3761 # This workaround is required due to a bug in pkg-config file for glib as it
3762 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3763
3764 if test "$static" = yes && test "$mingw32" = yes; then
3765     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
3766 fi
3767
3768 if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3769     gio=yes
3770     gio_cflags=$($pkg_config --cflags gio-2.0)
3771     gio_libs=$($pkg_config --libs gio-2.0)
3772     gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3773     if [ ! -x "$gdbus_codegen" ]; then
3774         gdbus_codegen=
3775     fi
3776 else
3777     gio=no
3778 fi
3779
3780 if $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3781     gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3782     gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3783 fi
3784
3785 # Sanity check that the current size_t matches the
3786 # size that glib thinks it should be. This catches
3787 # problems on multi-arch where people try to build
3788 # 32-bit QEMU while pointing at 64-bit glib headers
3789 cat > $TMPC <<EOF
3790 #include <glib.h>
3791 #include <unistd.h>
3792
3793 #define QEMU_BUILD_BUG_ON(x) \
3794   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3795
3796 int main(void) {
3797    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3798    return 0;
3799 }
3800 EOF
3801
3802 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
3803     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3804                "You probably need to set PKG_CONFIG_LIBDIR"\
3805                "to point to the right pkg-config files for your"\
3806                "build target"
3807 fi
3808
3809 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3810 cat > $TMPC << EOF
3811 #include <glib.h>
3812 int main(void) { return 0; }
3813 EOF
3814 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3815     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3816         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3817         CFLAGS="-Wno-unknown-attributes $CFLAGS"
3818     fi
3819 fi
3820
3821 # Silence clang warnings triggered by glib < 2.57.2
3822 cat > $TMPC << EOF
3823 #include <glib.h>
3824 typedef struct Foo {
3825     int i;
3826 } Foo;
3827 static void foo_free(Foo *f)
3828 {
3829     g_free(f);
3830 }
3831 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3832 int main(void) { return 0; }
3833 EOF
3834 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3835     if cc_has_warning_flag "-Wno-unused-function"; then
3836         glib_cflags="$glib_cflags -Wno-unused-function"
3837         CFLAGS="$CFLAGS -Wno-unused-function"
3838     fi
3839 fi
3840
3841 ##########################################
3842 # SHA command probe for modules
3843 if test "$modules" = yes; then
3844     shacmd_probe="sha1sum sha1 shasum"
3845     for c in $shacmd_probe; do
3846         if has $c; then
3847             shacmd="$c"
3848             break
3849         fi
3850     done
3851     if test "$shacmd" = ""; then
3852         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3853     fi
3854 fi
3855
3856 ##########################################
3857 # libmpathpersist probe
3858
3859 if test "$mpath" != "no" ; then
3860   # probe for the new API
3861   cat > $TMPC <<EOF
3862 #include <libudev.h>
3863 #include <mpath_persist.h>
3864 unsigned mpath_mx_alloc_len = 1024;
3865 int logsink;
3866 static struct config *multipath_conf;
3867 extern struct udev *udev;
3868 extern struct config *get_multipath_config(void);
3869 extern void put_multipath_config(struct config *conf);
3870 struct udev *udev;
3871 struct config *get_multipath_config(void) { return multipath_conf; }
3872 void put_multipath_config(struct config *conf) { }
3873
3874 int main(void) {
3875     udev = udev_new();
3876     multipath_conf = mpath_lib_init();
3877     return 0;
3878 }
3879 EOF
3880   if compile_prog "" "-ludev -lmultipath -lmpathpersist" ; then
3881     mpathpersist=yes
3882     mpathpersist_new_api=yes
3883   else
3884     # probe for the old API
3885     cat > $TMPC <<EOF
3886 #include <libudev.h>
3887 #include <mpath_persist.h>
3888 unsigned mpath_mx_alloc_len = 1024;
3889 int logsink;
3890 int main(void) {
3891     struct udev *udev = udev_new();
3892     mpath_lib_init(udev);
3893     return 0;
3894 }
3895 EOF
3896     if compile_prog "" "-ludev -lmultipath -lmpathpersist" ; then
3897       mpathpersist=yes
3898       mpathpersist_new_api=no
3899     else
3900       mpathpersist=no
3901     fi
3902   fi
3903 else
3904   mpathpersist=no
3905 fi
3906
3907 ##########################################
3908 # pthread probe
3909 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3910
3911 pthread=no
3912 cat > $TMPC << EOF
3913 #include <pthread.h>
3914 static void *f(void *p) { return NULL; }
3915 int main(void) {
3916   pthread_t thread;
3917   pthread_create(&thread, 0, f, 0);
3918   return 0;
3919 }
3920 EOF
3921 if compile_prog "" "" ; then
3922   pthread=yes
3923 else
3924   for pthread_lib in $PTHREADLIBS_LIST; do
3925     if compile_prog "" "$pthread_lib" ; then
3926       pthread=yes
3927       found=no
3928       for lib_entry in $LIBS; do
3929         if test "$lib_entry" = "$pthread_lib"; then
3930           found=yes
3931           break
3932         fi
3933       done
3934       if test "$found" = "no"; then
3935         LIBS="$pthread_lib $LIBS"
3936       fi
3937       PTHREAD_LIB="$pthread_lib"
3938       break
3939     fi
3940   done
3941 fi
3942
3943 if test "$mingw32" != yes && test "$pthread" = no; then
3944   error_exit "pthread check failed" \
3945       "Make sure to have the pthread libs and headers installed."
3946 fi
3947
3948 # check for pthread_setname_np with thread id
3949 pthread_setname_np_w_tid=no
3950 cat > $TMPC << EOF
3951 #include <pthread.h>
3952
3953 static void *f(void *p) { return NULL; }
3954 int main(void)
3955 {
3956     pthread_t thread;
3957     pthread_create(&thread, 0, f, 0);
3958     pthread_setname_np(thread, "QEMU");
3959     return 0;
3960 }
3961 EOF
3962 if compile_prog "" "$pthread_lib" ; then
3963   pthread_setname_np_w_tid=yes
3964 fi
3965
3966 # check for pthread_setname_np without thread id
3967 pthread_setname_np_wo_tid=no
3968 cat > $TMPC << EOF
3969 #include <pthread.h>
3970
3971 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
3972 int main(void)
3973 {
3974     pthread_t thread;
3975     pthread_create(&thread, 0, f, 0);
3976     return 0;
3977 }
3978 EOF
3979 if compile_prog "" "$pthread_lib" ; then
3980   pthread_setname_np_wo_tid=yes
3981 fi
3982
3983 ##########################################
3984 # rbd probe
3985 if test "$rbd" != "no" ; then
3986   cat > $TMPC <<EOF
3987 #include <stdio.h>
3988 #include <rbd/librbd.h>
3989 int main(void) {
3990     rados_t cluster;
3991     rados_create(&cluster, NULL);
3992     return 0;
3993 }
3994 EOF
3995   rbd_libs="-lrbd -lrados"
3996   if compile_prog "" "$rbd_libs" ; then
3997     rbd=yes
3998   else
3999     if test "$rbd" = "yes" ; then
4000       feature_not_found "rados block device" "Install librbd/ceph devel"
4001     fi
4002     rbd=no
4003   fi
4004 fi
4005
4006 ##########################################
4007 # libssh probe
4008 if test "$libssh" != "no" ; then
4009   if $pkg_config --exists libssh; then
4010     libssh_cflags=$($pkg_config libssh --cflags)
4011     libssh_libs=$($pkg_config libssh --libs)
4012     libssh=yes
4013   else
4014     if test "$libssh" = "yes" ; then
4015       error_exit "libssh required for --enable-libssh"
4016     fi
4017     libssh=no
4018   fi
4019 fi
4020
4021 ##########################################
4022 # Check for libssh 0.8
4023 # This is done like this instead of using the LIBSSH_VERSION_* and
4024 # SSH_VERSION_* macros because some distributions in the past shipped
4025 # snapshots of the future 0.8 from Git, and those snapshots did not
4026 # have updated version numbers (still referring to 0.7.0).
4027
4028 if test "$libssh" = "yes"; then
4029   cat > $TMPC <<EOF
4030 #include <libssh/libssh.h>
4031 int main(void) { return ssh_get_server_publickey(NULL, NULL); }
4032 EOF
4033   if compile_prog "$libssh_cflags" "$libssh_libs"; then
4034     libssh_cflags="-DHAVE_LIBSSH_0_8 $libssh_cflags"
4035   fi
4036 fi
4037
4038 ##########################################
4039 # linux-aio probe
4040
4041 if test "$linux_aio" != "no" ; then
4042   cat > $TMPC <<EOF
4043 #include <libaio.h>
4044 #include <sys/eventfd.h>
4045 #include <stddef.h>
4046 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
4047 EOF
4048   if compile_prog "" "-laio" ; then
4049     linux_aio=yes
4050   else
4051     if test "$linux_aio" = "yes" ; then
4052       feature_not_found "linux AIO" "Install libaio devel"
4053     fi
4054     linux_aio=no
4055   fi
4056 fi
4057 ##########################################
4058 # linux-io-uring probe
4059
4060 if test "$linux_io_uring" != "no" ; then
4061   if $pkg_config liburing; then
4062     linux_io_uring_cflags=$($pkg_config --cflags liburing)
4063     linux_io_uring_libs=$($pkg_config --libs liburing)
4064     linux_io_uring=yes
4065   else
4066     if test "$linux_io_uring" = "yes" ; then
4067       feature_not_found "linux io_uring" "Install liburing devel"
4068     fi
4069     linux_io_uring=no
4070   fi
4071 fi
4072
4073 ##########################################
4074 # TPM emulation is only on POSIX
4075
4076 if test "$tpm" = ""; then
4077   if test "$mingw32" = "yes"; then
4078     tpm=no
4079   else
4080     tpm=yes
4081   fi
4082 elif test "$tpm" = "yes"; then
4083   if test "$mingw32" = "yes" ; then
4084     error_exit "TPM emulation only available on POSIX systems"
4085   fi
4086 fi
4087
4088 ##########################################
4089 # attr probe
4090
4091 libattr_libs=
4092 if test "$attr" != "no" ; then
4093   cat > $TMPC <<EOF
4094 #include <stdio.h>
4095 #include <sys/types.h>
4096 #ifdef CONFIG_LIBATTR
4097 #include <attr/xattr.h>
4098 #else
4099 #include <sys/xattr.h>
4100 #endif
4101 int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }
4102 EOF
4103   if compile_prog "" "" ; then
4104     attr=yes
4105   # Older distros have <attr/xattr.h>, and need -lattr:
4106   elif compile_prog "-DCONFIG_LIBATTR" "-lattr" ; then
4107     attr=yes
4108     libattr_libs="-lattr"
4109     libattr=yes
4110   else
4111     if test "$attr" = "yes" ; then
4112       feature_not_found "ATTR" "Install libc6 or libattr devel"
4113     fi
4114     attr=no
4115   fi
4116 fi
4117
4118 ##########################################
4119 # iovec probe
4120 cat > $TMPC <<EOF
4121 #include <sys/types.h>
4122 #include <sys/uio.h>
4123 #include <unistd.h>
4124 int main(void) { return sizeof(struct iovec); }
4125 EOF
4126 iovec=no
4127 if compile_prog "" "" ; then
4128   iovec=yes
4129 fi
4130
4131 ##########################################
4132 # preadv probe
4133 cat > $TMPC <<EOF
4134 #include <sys/types.h>
4135 #include <sys/uio.h>
4136 #include <unistd.h>
4137 int main(void) { return preadv(0, 0, 0, 0); }
4138 EOF
4139 preadv=no
4140 if compile_prog "" "" ; then
4141   preadv=yes
4142 fi
4143
4144 ##########################################
4145 # fdt probe
4146 # fdt support is mandatory for at least some target architectures,
4147 # so insist on it if we're building those system emulators.
4148 fdt_required=no
4149 for target in $target_list; do
4150   case $target in
4151     aarch64*-softmmu|arm*-softmmu|ppc*-softmmu|microblaze*-softmmu|mips64el-softmmu|riscv*-softmmu|rx-softmmu)
4152       fdt_required=yes
4153     ;;
4154   esac
4155 done
4156
4157 if test "$fdt_required" = "yes"; then
4158   if test "$fdt" = "no"; then
4159     error_exit "fdt disabled but some requested targets require it." \
4160       "You can turn off fdt only if you also disable all the system emulation" \
4161       "targets which need it (by specifying a cut down --target-list)."
4162   fi
4163   fdt=yes
4164 elif test "$fdt" != "yes" ; then
4165   fdt=no
4166 fi
4167
4168 # fdt is only required when building softmmu targets
4169 if test -z "$fdt" -a "$softmmu" != "yes" ; then
4170     fdt="no"
4171 fi
4172
4173 if test "$fdt" != "no" ; then
4174   fdt_libs="-lfdt"
4175   # explicitly check for libfdt_env.h as it is missing in some stable installs
4176   # and test for required functions to make sure we are on a version >= 1.4.2
4177   cat > $TMPC << EOF
4178 #include <libfdt.h>
4179 #include <libfdt_env.h>
4180 int main(void) { fdt_check_full(NULL, 0); return 0; }
4181 EOF
4182   if compile_prog "" "$fdt_libs" ; then
4183     # system DTC is good - use it
4184     fdt=system
4185   else
4186       # have GIT checkout, so activate dtc submodule
4187       if test -e "${source_path}/.git" ; then
4188           git_submodules="${git_submodules} dtc"
4189       fi
4190       if test -d "${source_path}/dtc/libfdt" || test -e "${source_path}/.git" ; then
4191           fdt=git
4192           mkdir -p dtc
4193           fdt_cflags="-I${source_path}/dtc/libfdt"
4194           fdt_ldflags="-Ldtc/libfdt"
4195           fdt_libs="$fdt_libs"
4196       elif test "$fdt" = "yes" ; then
4197           # Not a git build & no libfdt found, prompt for system install
4198           error_exit "DTC (libfdt) version >= 1.4.2 not present." \
4199                      "Please install the DTC (libfdt) devel package"
4200       else
4201           # don't have and don't want
4202           fdt_libs=
4203           fdt=no
4204       fi
4205   fi
4206 fi
4207
4208 ##########################################
4209 # opengl probe (for sdl2, gtk, milkymist-tmu2)
4210
4211 gbm="no"
4212 if $pkg_config gbm; then
4213     gbm_cflags="$($pkg_config --cflags gbm)"
4214     gbm_libs="$($pkg_config --libs gbm)"
4215     gbm="yes"
4216 fi
4217
4218 if test "$opengl" != "no" ; then
4219   opengl_pkgs="epoxy gbm"
4220   if $pkg_config $opengl_pkgs; then
4221     opengl_cflags="$($pkg_config --cflags $opengl_pkgs)"
4222     opengl_libs="$($pkg_config --libs $opengl_pkgs)"
4223     opengl=yes
4224     if test "$gtk" = "yes" && $pkg_config --exists "$gtkpackage >= 3.16"; then
4225         gtk_gl="yes"
4226     fi
4227   else
4228     if test "$opengl" = "yes" ; then
4229       feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
4230     fi
4231     opengl_cflags=""
4232     opengl_libs=""
4233     opengl=no
4234   fi
4235 fi
4236
4237 if test "$opengl" = "yes"; then
4238   cat > $TMPC << EOF
4239 #include <epoxy/egl.h>
4240 #ifndef EGL_MESA_image_dma_buf_export
4241 # error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
4242 #endif
4243 int main(void) { return 0; }
4244 EOF
4245   if compile_prog "" "" ; then
4246     opengl_dmabuf=yes
4247   fi
4248 fi
4249
4250 if test "$opengl" = "yes" && test "$have_x11" = "yes"; then
4251   for target in $target_list; do
4252     case $target in
4253       lm32-softmmu) # milkymist-tmu2 requires X11 and OpenGL
4254         need_x11=yes
4255       ;;
4256     esac
4257   done
4258 fi
4259
4260 ##########################################
4261 # libxml2 probe
4262 if test "$libxml2" != "no" ; then
4263     if $pkg_config --exists libxml-2.0; then
4264         libxml2="yes"
4265         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
4266         libxml2_libs=$($pkg_config --libs libxml-2.0)
4267     else
4268         if test "$libxml2" = "yes"; then
4269             feature_not_found "libxml2" "Install libxml2 devel"
4270         fi
4271         libxml2="no"
4272     fi
4273 fi
4274
4275 ##########################################
4276 # glusterfs probe
4277 if test "$glusterfs" != "no" ; then
4278   if $pkg_config --atleast-version=3 glusterfs-api; then
4279     glusterfs="yes"
4280     glusterfs_cflags=$($pkg_config --cflags glusterfs-api)
4281     glusterfs_libs=$($pkg_config --libs glusterfs-api)
4282     if $pkg_config --atleast-version=4 glusterfs-api; then
4283       glusterfs_xlator_opt="yes"
4284     fi
4285     if $pkg_config --atleast-version=5 glusterfs-api; then
4286       glusterfs_discard="yes"
4287     fi
4288     if $pkg_config --atleast-version=6 glusterfs-api; then
4289       glusterfs_fallocate="yes"
4290       glusterfs_zerofill="yes"
4291     fi
4292     cat > $TMPC << EOF
4293 #include <glusterfs/api/glfs.h>
4294
4295 int
4296 main(void)
4297 {
4298         /* new glfs_ftruncate() passes two additional args */
4299         return glfs_ftruncate(NULL, 0, NULL, NULL);
4300 }
4301 EOF
4302     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
4303       glusterfs_ftruncate_has_stat="yes"
4304     fi
4305     cat > $TMPC << EOF
4306 #include <glusterfs/api/glfs.h>
4307
4308 /* new glfs_io_cbk() passes two additional glfs_stat structs */
4309 static void
4310 glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
4311 {}
4312
4313 int
4314 main(void)
4315 {
4316         glfs_io_cbk iocb = &glusterfs_iocb;
4317         iocb(NULL, 0 , NULL, NULL, NULL);
4318         return 0;
4319 }
4320 EOF
4321     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
4322       glusterfs_iocb_has_stat="yes"
4323     fi
4324   else
4325     if test "$glusterfs" = "yes" ; then
4326       feature_not_found "GlusterFS backend support" \
4327           "Install glusterfs-api devel >= 3"
4328     fi
4329     glusterfs="no"
4330   fi
4331 fi
4332
4333 # Check for inotify functions when we are building linux-user
4334 # emulator.  This is done because older glibc versions don't
4335 # have syscall stubs for these implemented.  In that case we
4336 # don't provide them even if kernel supports them.
4337 #
4338 inotify=no
4339 cat > $TMPC << EOF
4340 #include <sys/inotify.h>
4341
4342 int
4343 main(void)
4344 {
4345         /* try to start inotify */
4346         return inotify_init();
4347 }
4348 EOF
4349 if compile_prog "" "" ; then
4350   inotify=yes
4351 fi
4352
4353 inotify1=no
4354 cat > $TMPC << EOF
4355 #include <sys/inotify.h>
4356
4357 int
4358 main(void)
4359 {
4360     /* try to start inotify */
4361     return inotify_init1(0);
4362 }
4363 EOF
4364 if compile_prog "" "" ; then
4365   inotify1=yes
4366 fi
4367
4368 # check if pipe2 is there
4369 pipe2=no
4370 cat > $TMPC << EOF
4371 #include <unistd.h>
4372 #include <fcntl.h>
4373
4374 int main(void)
4375 {
4376     int pipefd[2];
4377     return pipe2(pipefd, O_CLOEXEC);
4378 }
4379 EOF
4380 if compile_prog "" "" ; then
4381   pipe2=yes
4382 fi
4383
4384 # check if accept4 is there
4385 accept4=no
4386 cat > $TMPC << EOF
4387 #include <sys/socket.h>
4388 #include <stddef.h>
4389
4390 int main(void)
4391 {
4392     accept4(0, NULL, NULL, SOCK_CLOEXEC);
4393     return 0;
4394 }
4395 EOF
4396 if compile_prog "" "" ; then
4397   accept4=yes
4398 fi
4399
4400 # check if tee/splice is there. vmsplice was added same time.
4401 splice=no
4402 cat > $TMPC << EOF
4403 #include <unistd.h>
4404 #include <fcntl.h>
4405 #include <limits.h>
4406
4407 int main(void)
4408 {
4409     int len, fd = 0;
4410     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
4411     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
4412     return 0;
4413 }
4414 EOF
4415 if compile_prog "" "" ; then
4416   splice=yes
4417 fi
4418
4419 ##########################################
4420 # libnuma probe
4421
4422 if test "$numa" != "no" ; then
4423   cat > $TMPC << EOF
4424 #include <numa.h>
4425 int main(void) { return numa_available(); }
4426 EOF
4427
4428   if compile_prog "" "-lnuma" ; then
4429     numa=yes
4430     numa_libs="-lnuma"
4431   else
4432     if test "$numa" = "yes" ; then
4433       feature_not_found "numa" "install numactl devel"
4434     fi
4435     numa=no
4436   fi
4437 fi
4438
4439 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
4440     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
4441     exit 1
4442 fi
4443
4444 # Even if malloc_trim() is available, these non-libc memory allocators
4445 # do not support it.
4446 if test "$tcmalloc" = "yes" || test "$jemalloc" = "yes" ; then
4447     if test "$malloc_trim" = "yes" ; then
4448         echo "Disabling malloc_trim with non-libc memory allocator"
4449     fi
4450     malloc_trim="no"
4451 fi
4452
4453 #######################################
4454 # malloc_trim
4455
4456 if test "$malloc_trim" != "no" ; then
4457     cat > $TMPC << EOF
4458 #include <malloc.h>
4459 int main(void) { malloc_trim(0); return 0; }
4460 EOF
4461     if compile_prog "" "" ; then
4462         malloc_trim="yes"
4463     else
4464         malloc_trim="no"
4465     fi
4466 fi
4467
4468 ##########################################
4469 # tcmalloc probe
4470
4471 if test "$tcmalloc" = "yes" ; then
4472   cat > $TMPC << EOF
4473 #include <stdlib.h>
4474 int main(void) {
4475     void *tmp = malloc(1);
4476     if (tmp != NULL) {
4477         return 0;
4478     }
4479     return 1;
4480 }
4481 EOF
4482
4483   if compile_prog "" "-ltcmalloc" ; then
4484     LIBS="-ltcmalloc $LIBS"
4485   else
4486     feature_not_found "tcmalloc" "install gperftools devel"
4487   fi
4488 fi
4489
4490 ##########################################
4491 # jemalloc probe
4492
4493 if test "$jemalloc" = "yes" ; then
4494   cat > $TMPC << EOF
4495 #include <stdlib.h>
4496 int main(void) {
4497     void *tmp = malloc(1);
4498     if (tmp != NULL) {
4499         return 0;
4500     }
4501     return 1;
4502 }
4503 EOF
4504
4505   if compile_prog "" "-ljemalloc" ; then
4506     LIBS="-ljemalloc $LIBS"
4507   else
4508     feature_not_found "jemalloc" "install jemalloc devel"
4509   fi
4510 fi
4511
4512 ##########################################
4513 # signalfd probe
4514 signalfd="no"
4515 cat > $TMPC << EOF
4516 #include <unistd.h>
4517 #include <sys/syscall.h>
4518 #include <signal.h>
4519 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
4520 EOF
4521
4522 if compile_prog "" "" ; then
4523   signalfd=yes
4524 fi
4525
4526 # check if optreset global is declared by <getopt.h>
4527 optreset="no"
4528 cat > $TMPC << EOF
4529 #include <getopt.h>
4530 int main(void) { return optreset; }
4531 EOF
4532
4533 if compile_prog "" "" ; then
4534   optreset=yes
4535 fi
4536
4537 # check if eventfd is supported
4538 eventfd=no
4539 cat > $TMPC << EOF
4540 #include <sys/eventfd.h>
4541
4542 int main(void)
4543 {
4544     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
4545 }
4546 EOF
4547 if compile_prog "" "" ; then
4548   eventfd=yes
4549 fi
4550
4551 # check if memfd is supported
4552 memfd=no
4553 cat > $TMPC << EOF
4554 #include <sys/mman.h>
4555
4556 int main(void)
4557 {
4558     return memfd_create("foo", MFD_ALLOW_SEALING);
4559 }
4560 EOF
4561 if compile_prog "" "" ; then
4562   memfd=yes
4563 fi
4564
4565 # check for usbfs
4566 have_usbfs=no
4567 if test "$linux_user" = "yes"; then
4568   cat > $TMPC << EOF
4569 #include <linux/usbdevice_fs.h>
4570
4571 #ifndef USBDEVFS_GET_CAPABILITIES
4572 #error "USBDEVFS_GET_CAPABILITIES undefined"
4573 #endif
4574
4575 #ifndef USBDEVFS_DISCONNECT_CLAIM
4576 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
4577 #endif
4578
4579 int main(void)
4580 {
4581     return 0;
4582 }
4583 EOF
4584   if compile_prog "" ""; then
4585     have_usbfs=yes
4586   fi
4587 fi
4588
4589 # check for fallocate
4590 fallocate=no
4591 cat > $TMPC << EOF
4592 #include <fcntl.h>
4593
4594 int main(void)
4595 {
4596     fallocate(0, 0, 0, 0);
4597     return 0;
4598 }
4599 EOF
4600 if compile_prog "" "" ; then
4601   fallocate=yes
4602 fi
4603
4604 # check for fallocate hole punching
4605 fallocate_punch_hole=no
4606 cat > $TMPC << EOF
4607 #include <fcntl.h>
4608 #include <linux/falloc.h>
4609
4610 int main(void)
4611 {
4612     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
4613     return 0;
4614 }
4615 EOF
4616 if compile_prog "" "" ; then
4617   fallocate_punch_hole=yes
4618 fi
4619
4620 # check that fallocate supports range zeroing inside the file
4621 fallocate_zero_range=no
4622 cat > $TMPC << EOF
4623 #include <fcntl.h>
4624 #include <linux/falloc.h>
4625
4626 int main(void)
4627 {
4628     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
4629     return 0;
4630 }
4631 EOF
4632 if compile_prog "" "" ; then
4633   fallocate_zero_range=yes
4634 fi
4635
4636 # check for posix_fallocate
4637 posix_fallocate=no
4638 cat > $TMPC << EOF
4639 #include <fcntl.h>
4640
4641 int main(void)
4642 {
4643     posix_fallocate(0, 0, 0);
4644     return 0;
4645 }
4646 EOF
4647 if compile_prog "" "" ; then
4648     posix_fallocate=yes
4649 fi
4650
4651 # check for sync_file_range
4652 sync_file_range=no
4653 cat > $TMPC << EOF
4654 #include <fcntl.h>
4655
4656 int main(void)
4657 {
4658     sync_file_range(0, 0, 0, 0);
4659     return 0;
4660 }
4661 EOF
4662 if compile_prog "" "" ; then
4663   sync_file_range=yes
4664 fi
4665
4666 # check for linux/fiemap.h and FS_IOC_FIEMAP
4667 fiemap=no
4668 cat > $TMPC << EOF
4669 #include <sys/ioctl.h>
4670 #include <linux/fs.h>
4671 #include <linux/fiemap.h>
4672
4673 int main(void)
4674 {
4675     ioctl(0, FS_IOC_FIEMAP, 0);
4676     return 0;
4677 }
4678 EOF
4679 if compile_prog "" "" ; then
4680   fiemap=yes
4681 fi
4682
4683 # check for dup3
4684 dup3=no
4685 cat > $TMPC << EOF
4686 #include <unistd.h>
4687
4688 int main(void)
4689 {
4690     dup3(0, 0, 0);
4691     return 0;
4692 }
4693 EOF
4694 if compile_prog "" "" ; then
4695   dup3=yes
4696 fi
4697
4698 # check for ppoll support
4699 ppoll=no
4700 cat > $TMPC << EOF
4701 #include <poll.h>
4702
4703 int main(void)
4704 {
4705     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
4706     ppoll(&pfd, 1, 0, 0);
4707     return 0;
4708 }
4709 EOF
4710 if compile_prog "" "" ; then
4711   ppoll=yes
4712 fi
4713
4714 # check for prctl(PR_SET_TIMERSLACK , ... ) support
4715 prctl_pr_set_timerslack=no
4716 cat > $TMPC << EOF
4717 #include <sys/prctl.h>
4718
4719 int main(void)
4720 {
4721     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
4722     return 0;
4723 }
4724 EOF
4725 if compile_prog "" "" ; then
4726   prctl_pr_set_timerslack=yes
4727 fi
4728
4729 # check for epoll support
4730 epoll=no
4731 cat > $TMPC << EOF
4732 #include <sys/epoll.h>
4733
4734 int main(void)
4735 {
4736     epoll_create(0);
4737     return 0;
4738 }
4739 EOF
4740 if compile_prog "" "" ; then
4741   epoll=yes
4742 fi
4743
4744 # epoll_create1 is a later addition
4745 # so we must check separately for its presence
4746 epoll_create1=no
4747 cat > $TMPC << EOF
4748 #include <sys/epoll.h>
4749
4750 int main(void)
4751 {
4752     /* Note that we use epoll_create1 as a value, not as
4753      * a function being called. This is necessary so that on
4754      * old SPARC glibc versions where the function was present in
4755      * the library but not declared in the header file we will
4756      * fail the configure check. (Otherwise we will get a compiler
4757      * warning but not an error, and will proceed to fail the
4758      * qemu compile where we compile with -Werror.)
4759      */
4760     return (int)(uintptr_t)&epoll_create1;
4761 }
4762 EOF
4763 if compile_prog "" "" ; then
4764   epoll_create1=yes
4765 fi
4766
4767 # check for sendfile support
4768 sendfile=no
4769 cat > $TMPC << EOF
4770 #include <sys/sendfile.h>
4771
4772 int main(void)
4773 {
4774     return sendfile(0, 0, 0, 0);
4775 }
4776 EOF
4777 if compile_prog "" "" ; then
4778   sendfile=yes
4779 fi
4780
4781 # check for timerfd support (glibc 2.8 and newer)
4782 timerfd=no
4783 cat > $TMPC << EOF
4784 #include <sys/timerfd.h>
4785
4786 int main(void)
4787 {
4788     return(timerfd_create(CLOCK_REALTIME, 0));
4789 }
4790 EOF
4791 if compile_prog "" "" ; then
4792   timerfd=yes
4793 fi
4794
4795 # check for setns and unshare support
4796 setns=no
4797 cat > $TMPC << EOF
4798 #include <sched.h>
4799
4800 int main(void)
4801 {
4802     int ret;
4803     ret = setns(0, 0);
4804     ret = unshare(0);
4805     return ret;
4806 }
4807 EOF
4808 if compile_prog "" "" ; then
4809   setns=yes
4810 fi
4811
4812 # clock_adjtime probe
4813 clock_adjtime=no
4814 cat > $TMPC <<EOF
4815 #include <time.h>
4816
4817 int main(void)
4818 {
4819     return clock_adjtime(0, 0);
4820 }
4821 EOF
4822 clock_adjtime=no
4823 if compile_prog "" "" ; then
4824   clock_adjtime=yes
4825 fi
4826
4827 # syncfs probe
4828 syncfs=no
4829 cat > $TMPC <<EOF
4830 #include <unistd.h>
4831
4832 int main(void)
4833 {
4834     return syncfs(0);
4835 }
4836 EOF
4837 syncfs=no
4838 if compile_prog "" "" ; then
4839   syncfs=yes
4840 fi
4841
4842 # check for kcov support (kernel must be 4.4+, compiled with certain options)
4843 kcov=no
4844 if check_include sys/kcov.h ; then
4845     kcov=yes
4846 fi
4847
4848 # check for btrfs filesystem support (kernel must be 3.9+)
4849 btrfs=no
4850 if check_include linux/btrfs.h ; then
4851     btrfs=yes
4852 fi
4853
4854 # If we're making warnings fatal, apply this to Sphinx runs as well
4855 sphinx_werror=""
4856 if test "$werror" = "yes"; then
4857     sphinx_werror="-W"
4858 fi
4859
4860 # Check we have a new enough version of sphinx-build
4861 has_sphinx_build() {
4862     # This is a bit awkward but works: create a trivial document and
4863     # try to run it with our configuration file (which enforces a
4864     # version requirement). This will fail if either
4865     # sphinx-build doesn't exist at all or if it is too old.
4866     mkdir -p "$TMPDIR1/sphinx"
4867     touch "$TMPDIR1/sphinx/index.rst"
4868     "$sphinx_build" $sphinx_werror -c "$source_path/docs" \
4869                     -b html "$TMPDIR1/sphinx" \
4870                     "$TMPDIR1/sphinx/out"  >> config.log 2>&1
4871 }
4872
4873 # Check if tools are available to build documentation.
4874 if test "$docs" != "no" ; then
4875   if has_sphinx_build; then
4876     sphinx_ok=yes
4877   else
4878     sphinx_ok=no
4879   fi
4880   if test "$sphinx_ok" = "yes"; then
4881     docs=yes
4882   else
4883     if test "$docs" = "yes" ; then
4884       if has $sphinx_build && test "$sphinx_ok" != "yes"; then
4885         echo "Warning: $sphinx_build exists but it is either too old or uses too old a Python version" >&2
4886       fi
4887       feature_not_found "docs" "Install a Python 3 version of python-sphinx"
4888     fi
4889     docs=no
4890   fi
4891 fi
4892
4893 # Search for bswap_32 function
4894 byteswap_h=no
4895 cat > $TMPC << EOF
4896 #include <byteswap.h>
4897 int main(void) { return bswap_32(0); }
4898 EOF
4899 if compile_prog "" "" ; then
4900   byteswap_h=yes
4901 fi
4902
4903 # Search for bswap32 function
4904 bswap_h=no
4905 cat > $TMPC << EOF
4906 #include <sys/endian.h>
4907 #include <sys/types.h>
4908 #include <machine/bswap.h>
4909 int main(void) { return bswap32(0); }
4910 EOF
4911 if compile_prog "" "" ; then
4912   bswap_h=yes
4913 fi
4914
4915 ##########################################
4916 # Do we have libiscsi >= 1.9.0
4917 if test "$libiscsi" != "no" ; then
4918   if $pkg_config --atleast-version=1.9.0 libiscsi; then
4919     libiscsi="yes"
4920     libiscsi_cflags=$($pkg_config --cflags libiscsi)
4921     libiscsi_libs=$($pkg_config --libs libiscsi)
4922   else
4923     if test "$libiscsi" = "yes" ; then
4924       feature_not_found "libiscsi" "Install libiscsi >= 1.9.0"
4925     fi
4926     libiscsi="no"
4927   fi
4928 fi
4929
4930 ##########################################
4931 # Do we need librt
4932 # uClibc provides 2 versions of clock_gettime(), one with realtime
4933 # support and one without. This means that the clock_gettime() don't
4934 # need -lrt. We still need it for timer_create() so we check for this
4935 # function in addition.
4936 cat > $TMPC <<EOF
4937 #include <signal.h>
4938 #include <time.h>
4939 int main(void) {
4940   timer_create(CLOCK_REALTIME, NULL, NULL);
4941   return clock_gettime(CLOCK_REALTIME, NULL);
4942 }
4943 EOF
4944
4945 if compile_prog "" "" ; then
4946   :
4947 # we need pthread for static linking. use previous pthread test result
4948 elif compile_prog "" "$pthread_lib -lrt" ; then
4949   LIBS="$LIBS -lrt"
4950 fi
4951
4952 # Check whether we have openpty() in either libc or libutil
4953 cat > $TMPC << EOF
4954 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
4955 int main(void) { return openpty(0, 0, 0, 0, 0); }
4956 EOF
4957
4958 have_openpty="no"
4959 if compile_prog "" "" ; then
4960   have_openpty="yes"
4961 else
4962   if compile_prog "" "-lutil" ; then
4963     have_openpty="yes"
4964   fi
4965 fi
4966
4967 ##########################################
4968 # spice probe
4969 if test "$spice" != "no" ; then
4970   cat > $TMPC << EOF
4971 #include <spice.h>
4972 int main(void) { spice_server_new(); return 0; }
4973 EOF
4974   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
4975   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
4976   if $pkg_config --atleast-version=0.12.5 spice-server && \
4977      $pkg_config --atleast-version=0.12.3 spice-protocol && \
4978      compile_prog "$spice_cflags" "$spice_libs" ; then
4979     spice="yes"
4980   else
4981     if test "$spice" = "yes" ; then
4982       feature_not_found "spice" \
4983           "Install spice-server(>=0.12.5) and spice-protocol(>=0.12.3) devel"
4984     fi
4985     spice="no"
4986   fi
4987 fi
4988
4989 # check for smartcard support
4990 if test "$smartcard" != "no"; then
4991     if $pkg_config --atleast-version=2.5.1 libcacard; then
4992         libcacard_cflags=$($pkg_config --cflags libcacard)
4993         libcacard_libs=$($pkg_config --libs libcacard)
4994         smartcard="yes"
4995     else
4996         if test "$smartcard" = "yes"; then
4997             feature_not_found "smartcard" "Install libcacard devel"
4998         fi
4999         smartcard="no"
5000     fi
5001 fi
5002
5003 # check for libusb
5004 if test "$libusb" != "no" ; then
5005     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
5006         libusb="yes"
5007         libusb_cflags=$($pkg_config --cflags libusb-1.0)
5008         libusb_libs=$($pkg_config --libs libusb-1.0)
5009     else
5010         if test "$libusb" = "yes"; then
5011             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
5012         fi
5013         libusb="no"
5014     fi
5015 fi
5016
5017 # check for usbredirparser for usb network redirection support
5018 if test "$usb_redir" != "no" ; then
5019     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
5020         usb_redir="yes"
5021         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
5022         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
5023     else
5024         if test "$usb_redir" = "yes"; then
5025             feature_not_found "usb-redir" "Install usbredir devel"
5026         fi
5027         usb_redir="no"
5028     fi
5029 fi
5030
5031 ##########################################
5032 # check if we have VSS SDK headers for win
5033
5034 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
5035         test "$vss_win32_sdk" != "no" ; then
5036   case "$vss_win32_sdk" in
5037     "")   vss_win32_include="-isystem $source_path" ;;
5038     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
5039           # handle path with spaces. So we symlink the headers into ".sdk/vss".
5040           vss_win32_include="-isystem $source_path/.sdk/vss"
5041           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
5042           ;;
5043     *)    vss_win32_include="-isystem $vss_win32_sdk"
5044   esac
5045   cat > $TMPC << EOF
5046 #define __MIDL_user_allocate_free_DEFINED__
5047 #include <inc/win2003/vss.h>
5048 int main(void) { return VSS_CTX_BACKUP; }
5049 EOF
5050   if compile_prog "$vss_win32_include" "" ; then
5051     guest_agent_with_vss="yes"
5052     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
5053     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
5054     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
5055   else
5056     if test "$vss_win32_sdk" != "" ; then
5057       echo "ERROR: Please download and install Microsoft VSS SDK:"
5058       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
5059       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
5060       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
5061       echo "ERROR: The headers are extracted in the directory \`inc'."
5062       feature_not_found "VSS support"
5063     fi
5064     guest_agent_with_vss="no"
5065   fi
5066 fi
5067
5068 ##########################################
5069 # lookup Windows platform SDK (if not specified)
5070 # The SDK is needed only to build .tlb (type library) file of guest agent
5071 # VSS provider from the source. It is usually unnecessary because the
5072 # pre-compiled .tlb file is included.
5073
5074 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
5075         test "$guest_agent_with_vss" = "yes" ; then
5076   if test -z "$win_sdk"; then
5077     programfiles="$PROGRAMFILES"
5078     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
5079     if test -n "$programfiles"; then
5080       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
5081     else
5082       feature_not_found "Windows SDK"
5083     fi
5084   elif test "$win_sdk" = "no"; then
5085     win_sdk=""
5086   fi
5087 fi
5088
5089 ##########################################
5090 # check if mingw environment provides a recent ntddscsi.h
5091 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
5092   cat > $TMPC << EOF
5093 #include <windows.h>
5094 #include <ntddscsi.h>
5095 int main(void) {
5096 #if !defined(IOCTL_SCSI_GET_ADDRESS)
5097 #error Missing required ioctl definitions
5098 #endif
5099   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
5100   return addr.Lun;
5101 }
5102 EOF
5103   if compile_prog "" "" ; then
5104     guest_agent_ntddscsi=yes
5105     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
5106   fi
5107 fi
5108
5109 ##########################################
5110 # virgl renderer probe
5111
5112 if test "$virglrenderer" != "no" ; then
5113   cat > $TMPC << EOF
5114 #include <virglrenderer.h>
5115 int main(void) { virgl_renderer_poll(); return 0; }
5116 EOF
5117   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
5118   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
5119   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
5120   if $pkg_config virglrenderer >/dev/null 2>&1 && \
5121      compile_prog "$virgl_cflags" "$virgl_libs" ; then
5122     virglrenderer="yes"
5123   else
5124     if test "$virglrenderer" = "yes" ; then
5125       feature_not_found "virglrenderer"
5126     fi
5127     virglrenderer="no"
5128   fi
5129 fi
5130
5131 ##########################################
5132 # capstone
5133
5134 case "$capstone" in
5135   "" | yes)
5136     if $pkg_config capstone; then
5137       capstone=system
5138     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
5139       capstone=git
5140     elif test -e "${source_path}/capstone/Makefile" ; then
5141       capstone=internal
5142     elif test -z "$capstone" ; then
5143       capstone=no
5144     else
5145       feature_not_found "capstone" "Install capstone devel or git submodule"
5146     fi
5147     ;;
5148
5149   system)
5150     if ! $pkg_config capstone; then
5151       feature_not_found "capstone" "Install capstone devel"
5152     fi
5153     ;;
5154 esac
5155
5156 case "$capstone" in
5157   git | internal)
5158     if test "$capstone" = git; then
5159       git_submodules="${git_submodules} capstone"
5160     fi
5161     mkdir -p capstone
5162     if test "$mingw32" = "yes"; then
5163       LIBCAPSTONE=capstone.lib
5164     else
5165       LIBCAPSTONE=libcapstone.a
5166     fi
5167     capstone_libs="-Lcapstone -lcapstone"
5168     capstone_cflags="-I${source_path}/capstone/include"
5169     ;;
5170
5171   system)
5172     capstone_libs="$($pkg_config --libs capstone)"
5173     capstone_cflags="$($pkg_config --cflags capstone)"
5174     ;;
5175
5176   no)
5177     ;;
5178   *)
5179     error_exit "Unknown state for capstone: $capstone"
5180     ;;
5181 esac
5182
5183 ##########################################
5184 # check if we have fdatasync
5185
5186 fdatasync=no
5187 cat > $TMPC << EOF
5188 #include <unistd.h>
5189 int main(void) {
5190 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
5191 return fdatasync(0);
5192 #else
5193 #error Not supported
5194 #endif
5195 }
5196 EOF
5197 if compile_prog "" "" ; then
5198     fdatasync=yes
5199 fi
5200
5201 ##########################################
5202 # check if we have madvise
5203
5204 madvise=no
5205 cat > $TMPC << EOF
5206 #include <sys/types.h>
5207 #include <sys/mman.h>
5208 #include <stddef.h>
5209 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
5210 EOF
5211 if compile_prog "" "" ; then
5212     madvise=yes
5213 fi
5214
5215 ##########################################
5216 # check if we have posix_madvise
5217
5218 posix_madvise=no
5219 cat > $TMPC << EOF
5220 #include <sys/mman.h>
5221 #include <stddef.h>
5222 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
5223 EOF
5224 if compile_prog "" "" ; then
5225     posix_madvise=yes
5226 fi
5227
5228 ##########################################
5229 # check if we have posix_memalign()
5230
5231 posix_memalign=no
5232 cat > $TMPC << EOF
5233 #include <stdlib.h>
5234 int main(void) {
5235     void *p;
5236     return posix_memalign(&p, 8, 8);
5237 }
5238 EOF
5239 if compile_prog "" "" ; then
5240     posix_memalign=yes
5241 fi
5242
5243 ##########################################
5244 # check if we have posix_syslog
5245
5246 posix_syslog=no
5247 cat > $TMPC << EOF
5248 #include <syslog.h>
5249 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
5250 EOF
5251 if compile_prog "" "" ; then
5252     posix_syslog=yes
5253 fi
5254
5255 ##########################################
5256 # check if we have sem_timedwait
5257
5258 sem_timedwait=no
5259 cat > $TMPC << EOF
5260 #include <semaphore.h>
5261 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
5262 EOF
5263 if compile_prog "" "" ; then
5264     sem_timedwait=yes
5265 fi
5266
5267 ##########################################
5268 # check if we have strchrnul
5269
5270 strchrnul=no
5271 cat > $TMPC << EOF
5272 #include <string.h>
5273 int main(void);
5274 // Use a haystack that the compiler shouldn't be able to constant fold
5275 char *haystack = (char*)&main;
5276 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
5277 EOF
5278 if compile_prog "" "" ; then
5279     strchrnul=yes
5280 fi
5281
5282 #########################################
5283 # check if we have st_atim
5284
5285 st_atim=no
5286 cat > $TMPC << EOF
5287 #include <sys/stat.h>
5288 #include <stddef.h>
5289 int main(void) { return offsetof(struct stat, st_atim); }
5290 EOF
5291 if compile_prog "" "" ; then
5292     st_atim=yes
5293 fi
5294
5295 ##########################################
5296 # check if trace backend exists
5297
5298 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
5299 if test "$?" -ne 0 ; then
5300   error_exit "invalid trace backends" \
5301       "Please choose supported trace backends."
5302 fi
5303
5304 ##########################################
5305 # For 'ust' backend, test if ust headers are present
5306 if have_backend "ust"; then
5307   cat > $TMPC << EOF
5308 #include <lttng/tracepoint.h>
5309 int main(void) { return 0; }
5310 EOF
5311   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
5312     if $pkg_config lttng-ust --exists; then
5313       lttng_ust_libs=$($pkg_config --libs lttng-ust)
5314     else
5315       lttng_ust_libs="-llttng-ust -ldl"
5316     fi
5317     if $pkg_config liburcu-bp --exists; then
5318       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
5319     else
5320       urcu_bp_libs="-lurcu-bp"
5321     fi
5322   else
5323     error_exit "Trace backend 'ust' missing lttng-ust header files"
5324   fi
5325 fi
5326
5327 ##########################################
5328 # For 'dtrace' backend, test if 'dtrace' command is present
5329 if have_backend "dtrace"; then
5330   if ! has 'dtrace' ; then
5331     error_exit "dtrace command is not found in PATH $PATH"
5332   fi
5333   trace_backend_stap="no"
5334   if has 'stap' ; then
5335     trace_backend_stap="yes"
5336   fi
5337 fi
5338
5339 ##########################################
5340 # check and set a backend for coroutine
5341
5342 # We prefer ucontext, but it's not always possible. The fallback
5343 # is sigcontext. On Windows the only valid backend is the Windows
5344 # specific one.
5345
5346 ucontext_works=no
5347 if test "$darwin" != "yes"; then
5348   cat > $TMPC << EOF
5349 #include <ucontext.h>
5350 #ifdef __stub_makecontext
5351 #error Ignoring glibc stub makecontext which will always fail
5352 #endif
5353 int main(void) { makecontext(0, 0, 0); return 0; }
5354 EOF
5355   if compile_prog "" "" ; then
5356     ucontext_works=yes
5357   fi
5358 fi
5359
5360 if test "$coroutine" = ""; then
5361   if test "$mingw32" = "yes"; then
5362     coroutine=win32
5363   elif test "$ucontext_works" = "yes"; then
5364     coroutine=ucontext
5365   else
5366     coroutine=sigaltstack
5367   fi
5368 else
5369   case $coroutine in
5370   windows)
5371     if test "$mingw32" != "yes"; then
5372       error_exit "'windows' coroutine backend only valid for Windows"
5373     fi
5374     # Unfortunately the user visible backend name doesn't match the
5375     # coroutine-*.c filename for this case, so we have to adjust it here.
5376     coroutine=win32
5377     ;;
5378   ucontext)
5379     if test "$ucontext_works" != "yes"; then
5380       feature_not_found "ucontext"
5381     fi
5382     ;;
5383   sigaltstack)
5384     if test "$mingw32" = "yes"; then
5385       error_exit "only the 'windows' coroutine backend is valid for Windows"
5386     fi
5387     ;;
5388   *)
5389     error_exit "unknown coroutine backend $coroutine"
5390     ;;
5391   esac
5392 fi
5393
5394 if test "$coroutine_pool" = ""; then
5395   coroutine_pool=yes
5396 fi
5397
5398 if test "$debug_stack_usage" = "yes"; then
5399   if test "$coroutine_pool" = "yes"; then
5400     echo "WARN: disabling coroutine pool for stack usage debugging"
5401     coroutine_pool=no
5402   fi
5403 fi
5404
5405 ##################################################
5406 # SafeStack
5407
5408
5409 if test "$safe_stack" = "yes"; then
5410 cat > $TMPC << EOF
5411 int main(int argc, char *argv[])
5412 {
5413 #if ! __has_feature(safe_stack)
5414 #error SafeStack Disabled
5415 #endif
5416     return 0;
5417 }
5418 EOF
5419   flag="-fsanitize=safe-stack"
5420   # Check that safe-stack is supported and enabled.
5421   if compile_prog "-Werror $flag" "$flag"; then
5422     # Flag needed both at compilation and at linking
5423     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
5424     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
5425   else
5426     error_exit "SafeStack not supported by your compiler"
5427   fi
5428   if test "$coroutine" != "ucontext"; then
5429     error_exit "SafeStack is only supported by the coroutine backend ucontext"
5430   fi
5431 else
5432 cat > $TMPC << EOF
5433 int main(int argc, char *argv[])
5434 {
5435 #if defined(__has_feature)
5436 #if __has_feature(safe_stack)
5437 #error SafeStack Enabled
5438 #endif
5439 #endif
5440     return 0;
5441 }
5442 EOF
5443 if test "$safe_stack" = "no"; then
5444   # Make sure that safe-stack is disabled
5445   if ! compile_prog "-Werror" ""; then
5446     # SafeStack was already enabled, try to explicitly remove the feature
5447     flag="-fno-sanitize=safe-stack"
5448     if ! compile_prog "-Werror $flag" "$flag"; then
5449       error_exit "Configure cannot disable SafeStack"
5450     fi
5451     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
5452     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
5453   fi
5454 else # "$safe_stack" = ""
5455   # Set safe_stack to yes or no based on pre-existing flags
5456   if compile_prog "-Werror" ""; then
5457     safe_stack="no"
5458   else
5459     safe_stack="yes"
5460     if test "$coroutine" != "ucontext"; then
5461       error_exit "SafeStack is only supported by the coroutine backend ucontext"
5462     fi
5463   fi
5464 fi
5465 fi
5466
5467 ##########################################
5468 # check if we have open_by_handle_at
5469
5470 open_by_handle_at=no
5471 cat > $TMPC << EOF
5472 #include <fcntl.h>
5473 #if !defined(AT_EMPTY_PATH)
5474 # error missing definition
5475 #else
5476 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
5477 #endif
5478 EOF
5479 if compile_prog "" "" ; then
5480     open_by_handle_at=yes
5481 fi
5482
5483 ########################################
5484 # check if we have linux/magic.h
5485
5486 linux_magic_h=no
5487 cat > $TMPC << EOF
5488 #include <linux/magic.h>
5489 int main(void) {
5490   return 0;
5491 }
5492 EOF
5493 if compile_prog "" "" ; then
5494     linux_magic_h=yes
5495 fi
5496
5497 ########################################
5498 # check if we have valgrind/valgrind.h
5499
5500 valgrind_h=no
5501 cat > $TMPC << EOF
5502 #include <valgrind/valgrind.h>
5503 int main(void) {
5504   return 0;
5505 }
5506 EOF
5507 if compile_prog "" "" ; then
5508     valgrind_h=yes
5509 fi
5510
5511 ########################################
5512 # check if environ is declared
5513
5514 has_environ=no
5515 cat > $TMPC << EOF
5516 #include <unistd.h>
5517 int main(void) {
5518     environ = 0;
5519     return 0;
5520 }
5521 EOF
5522 if compile_prog "" "" ; then
5523     has_environ=yes
5524 fi
5525
5526 ########################################
5527 # check if cpuid.h is usable.
5528
5529 cat > $TMPC << EOF
5530 #include <cpuid.h>
5531 int main(void) {
5532     unsigned a, b, c, d;
5533     int max = __get_cpuid_max(0, 0);
5534
5535     if (max >= 1) {
5536         __cpuid(1, a, b, c, d);
5537     }
5538
5539     if (max >= 7) {
5540         __cpuid_count(7, 0, a, b, c, d);
5541     }
5542
5543     return 0;
5544 }
5545 EOF
5546 if compile_prog "" "" ; then
5547     cpuid_h=yes
5548 fi
5549
5550 ##########################################
5551 # avx2 optimization requirement check
5552 #
5553 # There is no point enabling this if cpuid.h is not usable,
5554 # since we won't be able to select the new routines.
5555
5556 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
5557   cat > $TMPC << EOF
5558 #pragma GCC push_options
5559 #pragma GCC target("avx2")
5560 #include <cpuid.h>
5561 #include <immintrin.h>
5562 static int bar(void *a) {
5563     __m256i x = *(__m256i *)a;
5564     return _mm256_testz_si256(x, x);
5565 }
5566 int main(int argc, char *argv[]) { return bar(argv[0]); }
5567 EOF
5568   if compile_object "" ; then
5569     avx2_opt="yes"
5570   else
5571     avx2_opt="no"
5572   fi
5573 fi
5574
5575 ##########################################
5576 # avx512f optimization requirement check
5577 #
5578 # There is no point enabling this if cpuid.h is not usable,
5579 # since we won't be able to select the new routines.
5580 # by default, it is turned off.
5581 # if user explicitly want to enable it, check environment
5582
5583 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
5584   cat > $TMPC << EOF
5585 #pragma GCC push_options
5586 #pragma GCC target("avx512f")
5587 #include <cpuid.h>
5588 #include <immintrin.h>
5589 static int bar(void *a) {
5590     __m512i x = *(__m512i *)a;
5591     return _mm512_test_epi64_mask(x, x);
5592 }
5593 int main(int argc, char *argv[])
5594 {
5595         return bar(argv[0]);
5596 }
5597 EOF
5598   if ! compile_object "" ; then
5599     avx512f_opt="no"
5600   fi
5601 else
5602   avx512f_opt="no"
5603 fi
5604
5605 ########################################
5606 # check if __[u]int128_t is usable.
5607
5608 int128=no
5609 cat > $TMPC << EOF
5610 __int128_t a;
5611 __uint128_t b;
5612 int main (void) {
5613   a = a + b;
5614   b = a * b;
5615   a = a * a;
5616   return 0;
5617 }
5618 EOF
5619 if compile_prog "" "" ; then
5620     int128=yes
5621 fi
5622
5623 #########################################
5624 # See if 128-bit atomic operations are supported.
5625
5626 atomic128=no
5627 if test "$int128" = "yes"; then
5628   cat > $TMPC << EOF
5629 int main(void)
5630 {
5631   unsigned __int128 x = 0, y = 0;
5632   y = __atomic_load_16(&x, 0);
5633   __atomic_store_16(&x, y, 0);
5634   __atomic_compare_exchange_16(&x, &y, x, 0, 0, 0);
5635   return 0;
5636 }
5637 EOF
5638   if compile_prog "" "" ; then
5639     atomic128=yes
5640   fi
5641 fi
5642
5643 cmpxchg128=no
5644 if test "$int128" = yes && test "$atomic128" = no; then
5645   cat > $TMPC << EOF
5646 int main(void)
5647 {
5648   unsigned __int128 x = 0, y = 0;
5649   __sync_val_compare_and_swap_16(&x, y, x);
5650   return 0;
5651 }
5652 EOF
5653   if compile_prog "" "" ; then
5654     cmpxchg128=yes
5655   fi
5656 fi
5657
5658 #########################################
5659 # See if 64-bit atomic operations are supported.
5660 # Note that without __atomic builtins, we can only
5661 # assume atomic loads/stores max at pointer size.
5662
5663 cat > $TMPC << EOF
5664 #include <stdint.h>
5665 int main(void)
5666 {
5667   uint64_t x = 0, y = 0;
5668 #ifdef __ATOMIC_RELAXED
5669   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
5670   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
5671   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
5672   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
5673   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
5674 #else
5675   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
5676   __sync_lock_test_and_set(&x, y);
5677   __sync_val_compare_and_swap(&x, y, 0);
5678   __sync_fetch_and_add(&x, y);
5679 #endif
5680   return 0;
5681 }
5682 EOF
5683 if compile_prog "" "" ; then
5684   atomic64=yes
5685 fi
5686
5687 #########################################
5688 # See if --dynamic-list is supported by the linker
5689 ld_dynamic_list="no"
5690 if test "$static" = "no" ; then
5691     cat > $TMPTXT <<EOF
5692 {
5693   foo;
5694 };
5695 EOF
5696
5697     cat > $TMPC <<EOF
5698 #include <stdio.h>
5699 void foo(void);
5700
5701 void foo(void)
5702 {
5703   printf("foo\n");
5704 }
5705
5706 int main(void)
5707 {
5708   foo();
5709   return 0;
5710 }
5711 EOF
5712
5713     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
5714         ld_dynamic_list="yes"
5715     fi
5716 fi
5717
5718 #########################################
5719 # See if -exported_symbols_list is supported by the linker
5720
5721 ld_exported_symbols_list="no"
5722 if test "$static" = "no" ; then
5723     cat > $TMPTXT <<EOF
5724   _foo
5725 EOF
5726
5727     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
5728         ld_exported_symbols_list="yes"
5729     fi
5730 fi
5731
5732 if  test "$plugins" = "yes" &&
5733     test "$ld_dynamic_list" = "no" &&
5734     test "$ld_exported_symbols_list" = "no" ; then
5735   error_exit \
5736       "Plugin support requires dynamic linking and specifying a set of symbols " \
5737       "that are exported to plugins. Unfortunately your linker doesn't " \
5738       "support the flag (--dynamic-list or -exported_symbols_list) used " \
5739       "for this purpose. You can't build with --static."
5740 fi
5741
5742 ########################################
5743 # See if __attribute__((alias)) is supported.
5744 # This false for Xcode 9, but has been remedied for Xcode 10.
5745 # Unfortunately, travis uses Xcode 9 by default.
5746
5747 attralias=no
5748 cat > $TMPC << EOF
5749 int x = 1;
5750 extern const int y __attribute__((alias("x")));
5751 int main(void) { return 0; }
5752 EOF
5753 if compile_prog "" "" ; then
5754     attralias=yes
5755 fi
5756
5757 ########################################
5758 # check if getauxval is available.
5759
5760 getauxval=no
5761 cat > $TMPC << EOF
5762 #include <sys/auxv.h>
5763 int main(void) {
5764   return getauxval(AT_HWCAP) == 0;
5765 }
5766 EOF
5767 if compile_prog "" "" ; then
5768     getauxval=yes
5769 fi
5770
5771 ########################################
5772 # check if ccache is interfering with
5773 # semantic analysis of macros
5774
5775 unset CCACHE_CPP2
5776 ccache_cpp2=no
5777 cat > $TMPC << EOF
5778 static const int Z = 1;
5779 #define fn() ({ Z; })
5780 #define TAUT(X) ((X) == Z)
5781 #define PAREN(X, Y) (X == Y)
5782 #define ID(X) (X)
5783 int main(int argc, char *argv[])
5784 {
5785     int x = 0, y = 0;
5786     x = ID(x);
5787     x = fn();
5788     fn();
5789     if (PAREN(x, y)) return 0;
5790     if (TAUT(Z)) return 0;
5791     return 0;
5792 }
5793 EOF
5794
5795 if ! compile_object "-Werror"; then
5796     ccache_cpp2=yes
5797 fi
5798
5799 #################################################
5800 # clang does not support glibc + FORTIFY_SOURCE.
5801
5802 if test "$fortify_source" != "no"; then
5803   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
5804     fortify_source="no";
5805   elif test -n "$cxx" && has $cxx &&
5806        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
5807     fortify_source="no";
5808   else
5809     fortify_source="yes"
5810   fi
5811 fi
5812
5813 ###############################################
5814 # Check if copy_file_range is provided by glibc
5815 have_copy_file_range=no
5816 cat > $TMPC << EOF
5817 #include <unistd.h>
5818 int main(void) {
5819   copy_file_range(0, NULL, 0, NULL, 0, 0);
5820   return 0;
5821 }
5822 EOF
5823 if compile_prog "" "" ; then
5824     have_copy_file_range=yes
5825 fi
5826
5827 ##########################################
5828 # check if struct fsxattr is available via linux/fs.h
5829
5830 have_fsxattr=no
5831 cat > $TMPC << EOF
5832 #include <linux/fs.h>
5833 struct fsxattr foo;
5834 int main(void) {
5835   return 0;
5836 }
5837 EOF
5838 if compile_prog "" "" ; then
5839     have_fsxattr=yes
5840 fi
5841
5842 ##########################################
5843 # check for usable membarrier system call
5844 if test "$membarrier" = "yes"; then
5845     have_membarrier=no
5846     if test "$mingw32" = "yes" ; then
5847         have_membarrier=yes
5848     elif test "$linux" = "yes" ; then
5849         cat > $TMPC << EOF
5850     #include <linux/membarrier.h>
5851     #include <sys/syscall.h>
5852     #include <unistd.h>
5853     #include <stdlib.h>
5854     int main(void) {
5855         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
5856         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
5857         exit(0);
5858     }
5859 EOF
5860         if compile_prog "" "" ; then
5861             have_membarrier=yes
5862         fi
5863     fi
5864     if test "$have_membarrier" = "no"; then
5865       feature_not_found "membarrier" "membarrier system call not available"
5866     fi
5867 else
5868     # Do not enable it by default even for Mingw32, because it doesn't
5869     # work on Wine.
5870     membarrier=no
5871 fi
5872
5873 ##########################################
5874 # check if rtnetlink.h exists and is useful
5875 have_rtnetlink=no
5876 cat > $TMPC << EOF
5877 #include <linux/rtnetlink.h>
5878 int main(void) {
5879   return IFLA_PROTO_DOWN;
5880 }
5881 EOF
5882 if compile_prog "" "" ; then
5883     have_rtnetlink=yes
5884 fi
5885
5886 ##########################################
5887 # check for usable AF_VSOCK environment
5888 have_af_vsock=no
5889 cat > $TMPC << EOF
5890 #include <errno.h>
5891 #include <sys/types.h>
5892 #include <sys/socket.h>
5893 #if !defined(AF_VSOCK)
5894 # error missing AF_VSOCK flag
5895 #endif
5896 #include <linux/vm_sockets.h>
5897 int main(void) {
5898     int sock, ret;
5899     struct sockaddr_vm svm;
5900     socklen_t len = sizeof(svm);
5901     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
5902     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
5903     if ((ret == -1) && (errno == ENOTCONN)) {
5904         return 0;
5905     }
5906     return -1;
5907 }
5908 EOF
5909 if compile_prog "" "" ; then
5910     have_af_vsock=yes
5911 fi
5912
5913 ##########################################
5914 # check for usable AF_ALG environment
5915 have_afalg=no
5916 cat > $TMPC << EOF
5917 #include <errno.h>
5918 #include <sys/types.h>
5919 #include <sys/socket.h>
5920 #include <linux/if_alg.h>
5921 int main(void) {
5922     int sock;
5923     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
5924     return sock;
5925 }
5926 EOF
5927 if compile_prog "" "" ; then
5928     have_afalg=yes
5929 fi
5930 if test "$crypto_afalg" = "yes"
5931 then
5932     if test "$have_afalg" != "yes"
5933     then
5934         error_exit "AF_ALG requested but could not be detected"
5935     fi
5936 fi
5937
5938
5939 #################################################
5940 # Check to see if we have the Hypervisor framework
5941 if [ "$darwin" = "yes" ] ; then
5942   cat > $TMPC << EOF
5943 #include <Hypervisor/hv.h>
5944 int main() { return 0;}
5945 EOF
5946   if ! compile_object ""; then
5947     hvf='no'
5948   else
5949     hvf='yes'
5950     QEMU_LDFLAGS="-framework Hypervisor $QEMU_LDFLAGS"
5951   fi
5952 fi
5953
5954 ##########################################
5955 # check for sysmacros.h
5956
5957 have_sysmacros=no
5958 cat > $TMPC << EOF
5959 #include <sys/sysmacros.h>
5960 int main(void) {
5961     return makedev(0, 0);
5962 }
5963 EOF
5964 if compile_prog "" "" ; then
5965     have_sysmacros=yes
5966 fi
5967
5968 ##########################################
5969 # check for _Static_assert()
5970
5971 have_static_assert=no
5972 cat > $TMPC << EOF
5973 _Static_assert(1, "success");
5974 int main(void) {
5975     return 0;
5976 }
5977 EOF
5978 if compile_prog "" "" ; then
5979     have_static_assert=yes
5980 fi
5981
5982 ##########################################
5983 # check for utmpx.h, it is missing e.g. on OpenBSD
5984
5985 have_utmpx=no
5986 cat > $TMPC << EOF
5987 #include <utmpx.h>
5988 struct utmpx user_info;
5989 int main(void) {
5990     return 0;
5991 }
5992 EOF
5993 if compile_prog "" "" ; then
5994     have_utmpx=yes
5995 fi
5996
5997 ##########################################
5998 # check for getrandom()
5999
6000 have_getrandom=no
6001 cat > $TMPC << EOF
6002 #include <sys/random.h>
6003 int main(void) {
6004     return getrandom(0, 0, GRND_NONBLOCK);
6005 }
6006 EOF
6007 if compile_prog "" "" ; then
6008     have_getrandom=yes
6009 fi
6010
6011 ##########################################
6012 # checks for sanitizers
6013
6014 have_asan=no
6015 have_ubsan=no
6016 have_asan_iface_h=no
6017 have_asan_iface_fiber=no
6018
6019 if test "$sanitizers" = "yes" ; then
6020   write_c_skeleton
6021   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
6022       have_asan=yes
6023   fi
6024
6025   # we could use a simple skeleton for flags checks, but this also
6026   # detect the static linking issue of ubsan, see also:
6027   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
6028   cat > $TMPC << EOF
6029 #include <stdlib.h>
6030 int main(void) {
6031     void *tmp = malloc(10);
6032     if (tmp != NULL) {
6033         return *(int *)(tmp + 2);
6034     }
6035     return 1;
6036 }
6037 EOF
6038   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
6039       have_ubsan=yes
6040   fi
6041
6042   if check_include "sanitizer/asan_interface.h" ; then
6043       have_asan_iface_h=yes
6044   fi
6045
6046   cat > $TMPC << EOF
6047 #include <sanitizer/asan_interface.h>
6048 int main(void) {
6049   __sanitizer_start_switch_fiber(0, 0, 0);
6050   return 0;
6051 }
6052 EOF
6053   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
6054       have_asan_iface_fiber=yes
6055   fi
6056 fi
6057
6058 ##########################################
6059 # checks for fuzzer
6060 if test "$fuzzing" = "yes" && test -z "${LIB_FUZZING_ENGINE+xxx}"; then
6061   write_c_fuzzer_skeleton
6062   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
6063     have_fuzzer=yes
6064   else
6065     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
6066     exit 1
6067   fi
6068 fi
6069
6070 # Thread sanitizer is, for now, much noisier than the other sanitizers;
6071 # keep it separate until that is not the case.
6072 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
6073   error_exit "TSAN is not supported with other sanitiziers."
6074 fi
6075 have_tsan=no
6076 have_tsan_iface_fiber=no
6077 if test "$tsan" = "yes" ; then
6078   write_c_skeleton
6079   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
6080       have_tsan=yes
6081   fi
6082   cat > $TMPC << EOF
6083 #include <sanitizer/tsan_interface.h>
6084 int main(void) {
6085   __tsan_create_fiber(0);
6086   return 0;
6087 }
6088 EOF
6089   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
6090       have_tsan_iface_fiber=yes
6091   fi
6092 fi
6093
6094 ##########################################
6095 # check for libpmem
6096
6097 if test "$libpmem" != "no"; then
6098         if $pkg_config --exists "libpmem"; then
6099                 libpmem="yes"
6100                 libpmem_libs=$($pkg_config --libs libpmem)
6101                 libpmem_cflags=$($pkg_config --cflags libpmem)
6102         else
6103                 if test "$libpmem" = "yes" ; then
6104                         feature_not_found "libpmem" "Install nvml or pmdk"
6105                 fi
6106                 libpmem="no"
6107         fi
6108 fi
6109
6110 ##########################################
6111 # check for libdaxctl
6112
6113 if test "$libdaxctl" != "no"; then
6114         if $pkg_config --atleast-version=57 "libdaxctl"; then
6115                 libdaxctl="yes"
6116                 libdaxctl_libs=$($pkg_config --libs libdaxctl)
6117                 libdaxctl_cflags=$($pkg_config --cflags libdaxctl)
6118         else
6119                 if test "$libdaxctl" = "yes" ; then
6120                         feature_not_found "libdaxctl" "Install libdaxctl"
6121                 fi
6122                 libdaxctl="no"
6123         fi
6124 fi
6125
6126 ##########################################
6127 # check for slirp
6128
6129 # slirp is only required when building softmmu targets
6130 if test -z "$slirp" -a "$softmmu" != "yes" ; then
6131     slirp="no"
6132 fi
6133
6134 case "$slirp" in
6135   "" | yes)
6136     if $pkg_config slirp; then
6137       slirp=system
6138     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
6139       slirp=git
6140     elif test -e "${source_path}/slirp/Makefile" ; then
6141       slirp=internal
6142     elif test -z "$slirp" ; then
6143       slirp=no
6144     else
6145       feature_not_found "slirp" "Install slirp devel or git submodule"
6146     fi
6147     ;;
6148
6149   system)
6150     if ! $pkg_config slirp; then
6151       feature_not_found "slirp" "Install slirp devel"
6152     fi
6153     ;;
6154 esac
6155
6156 case "$slirp" in
6157   git | internal)
6158     if test "$slirp" = git; then
6159       git_submodules="${git_submodules} slirp"
6160     fi
6161     mkdir -p slirp
6162     slirp_cflags="-I${source_path}/slirp/src -Islirp/src"
6163     slirp_libs="-Lslirp -lslirp"
6164     if test "$mingw32" = "yes" ; then
6165       slirp_libs="$slirp_libs -lws2_32 -liphlpapi"
6166     fi
6167     ;;
6168
6169   system)
6170     slirp_version=$($pkg_config --modversion slirp 2>/dev/null)
6171     slirp_cflags=$($pkg_config --cflags slirp 2>/dev/null)
6172     slirp_libs=$($pkg_config --libs slirp 2>/dev/null)
6173     ;;
6174
6175   no)
6176     ;;
6177   *)
6178     error_exit "Unknown state for slirp: $slirp"
6179     ;;
6180 esac
6181
6182 ##########################################
6183 # check for usable __NR_keyctl syscall
6184
6185 if test "$linux" = "yes" ; then
6186
6187     have_keyring=no
6188     cat > $TMPC << EOF
6189 #include <errno.h>
6190 #include <asm/unistd.h>
6191 #include <linux/keyctl.h>
6192 #include <unistd.h>
6193 int main(void) {
6194     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
6195 }
6196 EOF
6197     if compile_prog "" "" ; then
6198         have_keyring=yes
6199     fi
6200 fi
6201 if test "$secret_keyring" != "no"
6202 then
6203     if test "$have_keyring" = "yes"
6204     then
6205         secret_keyring=yes
6206     else
6207         if test "$secret_keyring" = "yes"
6208         then
6209             error_exit "syscall __NR_keyctl requested, \
6210 but not implemented on your system"
6211         else
6212             secret_keyring=no
6213         fi
6214     fi
6215 fi
6216
6217 ##########################################
6218 # End of CC checks
6219 # After here, no more $cc or $ld runs
6220
6221 write_c_skeleton
6222
6223 if test "$gcov" = "yes" ; then
6224   :
6225 elif test "$fortify_source" = "yes" ; then
6226   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
6227   debug=no
6228 fi
6229 if test "$debug_info" = "yes"; then
6230   CFLAGS="-g $CFLAGS"
6231   LDFLAGS="-g $LDFLAGS"
6232 fi
6233 if test "$debug" = "no"; then
6234   CFLAGS="-O2 $CFLAGS"
6235 fi
6236
6237 case "$ARCH" in
6238 alpha)
6239   # Ensure there's only a single GP
6240   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
6241 ;;
6242 esac
6243
6244 if test "$gprof" = "yes" ; then
6245   QEMU_CFLAGS="-p $QEMU_CFLAGS"
6246   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
6247 fi
6248
6249 if test "$have_asan" = "yes"; then
6250   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
6251   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
6252   if test "$have_asan_iface_h" = "no" ; then
6253       echo "ASAN build enabled, but ASAN header missing." \
6254            "Without code annotation, the report may be inferior."
6255   elif test "$have_asan_iface_fiber" = "no" ; then
6256       echo "ASAN build enabled, but ASAN header is too old." \
6257            "Without code annotation, the report may be inferior."
6258   fi
6259 fi
6260 if test "$have_tsan" = "yes" ; then
6261   if test "$have_tsan_iface_fiber" = "yes" ; then
6262     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
6263     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
6264   else
6265     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
6266   fi
6267 elif test "$tsan" = "yes" ; then
6268   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
6269 fi
6270 if test "$have_ubsan" = "yes"; then
6271   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
6272   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
6273 fi
6274
6275 ##########################################
6276 # Do we have libnfs
6277 if test "$libnfs" != "no" ; then
6278   if $pkg_config --atleast-version=1.9.3 libnfs; then
6279     libnfs="yes"
6280     libnfs_libs=$($pkg_config --libs libnfs)
6281   else
6282     if test "$libnfs" = "yes" ; then
6283       feature_not_found "libnfs" "Install libnfs devel >= 1.9.3"
6284     fi
6285     libnfs="no"
6286   fi
6287 fi
6288
6289 ##########################################
6290 # Do we have libudev
6291 if test "$libudev" != "no" ; then
6292   if $pkg_config libudev && test "$static" != "yes"; then
6293     libudev="yes"
6294     libudev_libs=$($pkg_config --libs libudev)
6295   else
6296     libudev="no"
6297   fi
6298 fi
6299
6300 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
6301 if test "$solaris" = "no" && test "$tsan" = "no"; then
6302     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
6303         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
6304     fi
6305 fi
6306
6307 # Use ASLR, no-SEH and DEP if available
6308 if test "$mingw32" = "yes" ; then
6309     for flag in --dynamicbase --no-seh --nxcompat; do
6310         if ld_has $flag ; then
6311             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
6312         fi
6313     done
6314 fi
6315
6316 # Disable OpenBSD W^X if available
6317 if test "$tcg" = "yes" && test "$targetos" = "OpenBSD"; then
6318     cat > $TMPC <<EOF
6319     int main(void) { return 0; }
6320 EOF
6321     wx_ldflags="-Wl,-z,wxneeded"
6322     if compile_prog "" "$wx_ldflags"; then
6323         QEMU_LDFLAGS="$QEMU_LDFLAGS $wx_ldflags"
6324     fi
6325 fi
6326
6327 qemu_confdir="$sysconfdir/$qemu_suffix"
6328 qemu_moddir="$libdir/$qemu_suffix"
6329 qemu_datadir="$datadir/$qemu_suffix"
6330 qemu_docdir="$docdir/$qemu_suffix"
6331 qemu_localedir="$datadir/locale"
6332 qemu_icondir="$datadir/icons"
6333 qemu_desktopdir="$datadir/applications"
6334
6335 # We can only support ivshmem if we have eventfd
6336 if [ "$eventfd" = "yes" ]; then
6337   ivshmem=yes
6338 fi
6339
6340 if test "$softmmu" = yes ; then
6341   if test "$linux" = yes; then
6342     if test "$virtfs" != no && test "$cap_ng" = yes && test "$attr" = yes ; then
6343       virtfs=yes
6344     else
6345       if test "$virtfs" = yes; then
6346         error_exit "VirtFS requires libcap-ng devel and libattr devel"
6347       fi
6348       virtfs=no
6349     fi
6350     if test "$mpath" != no && test "$mpathpersist" = yes ; then
6351       mpath=yes
6352     else
6353       if test "$mpath" = yes; then
6354         error_exit "Multipath requires libmpathpersist devel"
6355       fi
6356       mpath=no
6357     fi
6358   else
6359     if test "$virtfs" = yes; then
6360       error_exit "VirtFS is supported only on Linux"
6361     fi
6362     virtfs=no
6363     if test "$mpath" = yes; then
6364       error_exit "Multipath is supported only on Linux"
6365     fi
6366     mpath=no
6367   fi
6368 fi
6369
6370 # Probe for guest agent support/options
6371
6372 if [ "$guest_agent" != "no" ]; then
6373   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
6374       guest_agent=no
6375   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
6376       guest_agent=yes
6377   elif [ "$guest_agent" != yes ]; then
6378       guest_agent=no
6379   else
6380       error_exit "Guest agent is not supported on this platform"
6381   fi
6382 fi
6383
6384 # Guest agent Window MSI  package
6385
6386 if test "$guest_agent" != yes; then
6387   if test "$guest_agent_msi" = yes; then
6388     error_exit "MSI guest agent package requires guest agent enabled"
6389   fi
6390   guest_agent_msi=no
6391 elif test "$mingw32" != "yes"; then
6392   if test "$guest_agent_msi" = "yes"; then
6393     error_exit "MSI guest agent package is available only for MinGW Windows cross-compilation"
6394   fi
6395   guest_agent_msi=no
6396 elif ! has wixl; then
6397   if test "$guest_agent_msi" = "yes"; then
6398     error_exit "MSI guest agent package requires wixl tool installed ( usually from msitools package )"
6399   fi
6400   guest_agent_msi=no
6401 else
6402   # we support qemu-ga, mingw32, and wixl: default to MSI enabled if it wasn't
6403   # disabled explicitly
6404   if test "$guest_agent_msi" != "no"; then
6405     guest_agent_msi=yes
6406   fi
6407 fi
6408
6409 if test "$guest_agent_msi" = "yes"; then
6410   if test "$guest_agent_with_vss" = "yes"; then
6411     QEMU_GA_MSI_WITH_VSS="-D InstallVss"
6412   fi
6413
6414   if test "$QEMU_GA_MANUFACTURER" = ""; then
6415     QEMU_GA_MANUFACTURER=QEMU
6416   fi
6417
6418   if test "$QEMU_GA_DISTRO" = ""; then
6419     QEMU_GA_DISTRO=Linux
6420   fi
6421
6422   if test "$QEMU_GA_VERSION" = ""; then
6423       QEMU_GA_VERSION=$(cat $source_path/VERSION)
6424   fi
6425
6426   QEMU_GA_MSI_MINGW_DLL_PATH="-D Mingw_dlls=$($pkg_config --variable=prefix glib-2.0)/bin"
6427
6428   case "$cpu" in
6429   x86_64)
6430     QEMU_GA_MSI_ARCH="-a x64 -D Arch=64"
6431     ;;
6432   i386)
6433     QEMU_GA_MSI_ARCH="-D Arch=32"
6434     ;;
6435   *)
6436     error_exit "CPU $cpu not supported for building installation package"
6437     ;;
6438   esac
6439 fi
6440
6441 # Mac OS X ships with a broken assembler
6442 roms=
6443 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
6444         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
6445         test "$softmmu" = yes ; then
6446     # Different host OS linkers have different ideas about the name of the ELF
6447     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
6448     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
6449     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
6450         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
6451             ld_i386_emulation="$emu"
6452             roms="optionrom"
6453             break
6454         fi
6455     done
6456 fi
6457
6458 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
6459 if test "$cpu" = "s390x" ; then
6460   write_c_skeleton
6461   if compile_prog "-march=z900" ""; then
6462     roms="$roms s390-ccw"
6463     # SLOF is required for building the s390-ccw firmware on s390x,
6464     # since it is using the libnet code from SLOF for network booting.
6465     if test -e "${source_path}/.git" ; then
6466       git_submodules="${git_submodules} roms/SLOF"
6467     fi
6468   fi
6469 fi
6470
6471 # Check that the C++ compiler exists and works with the C compiler.
6472 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
6473 if has $cxx; then
6474     cat > $TMPC <<EOF
6475 int c_function(void);
6476 int main(void) { return c_function(); }
6477 EOF
6478
6479     compile_object
6480
6481     cat > $TMPCXX <<EOF
6482 extern "C" {
6483    int c_function(void);
6484 }
6485 int c_function(void) { return 42; }
6486 EOF
6487
6488     update_cxxflags
6489
6490     if do_cxx $CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
6491         # C++ compiler $cxx works ok with C compiler $cc
6492         :
6493     else
6494         echo "C++ compiler $cxx does not work with C compiler $cc"
6495         echo "Disabling C++ specific optional code"
6496         cxx=
6497     fi
6498 else
6499     echo "No C++ compiler available; disabling C++ specific optional code"
6500     cxx=
6501 fi
6502
6503 if test $git_update = 'yes' ; then
6504     (cd "${source_path}" && GIT="$git" "./scripts/git-submodule.sh" update "$git_submodules")
6505 fi
6506 if test "$fdt" = "git" ; then
6507     symlink "$source_path/dtc/Makefile" "dtc/Makefile"
6508 fi
6509
6510 config_host_mak="config-host.mak"
6511
6512 echo "# Automatically generated by configure - do not modify" > $config_host_mak
6513 echo >> $config_host_mak
6514
6515 echo all: >> $config_host_mak
6516 echo "prefix=$prefix" >> $config_host_mak
6517 echo "bindir=$bindir" >> $config_host_mak
6518 echo "libdir=$libdir" >> $config_host_mak
6519 echo "libexecdir=$libexecdir" >> $config_host_mak
6520 echo "includedir=$includedir" >> $config_host_mak
6521 echo "sysconfdir=$sysconfdir" >> $config_host_mak
6522 echo "qemu_confdir=$qemu_confdir" >> $config_host_mak
6523 echo "qemu_datadir=$qemu_datadir" >> $config_host_mak
6524 echo "qemu_firmwarepath=$firmwarepath" >> $config_host_mak
6525 echo "qemu_moddir=$qemu_moddir" >> $config_host_mak
6526 if test "$mingw32" = "no" ; then
6527   echo "qemu_localstatedir=$local_statedir" >> $config_host_mak
6528 fi
6529 echo "qemu_helperdir=$libexecdir" >> $config_host_mak
6530 echo "qemu_localedir=$qemu_localedir" >> $config_host_mak
6531 echo "qemu_icondir=$qemu_icondir" >> $config_host_mak
6532 echo "qemu_desktopdir=$qemu_desktopdir" >> $config_host_mak
6533 echo "GIT=$git" >> $config_host_mak
6534 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
6535 echo "GIT_UPDATE=$git_update" >> $config_host_mak
6536
6537 echo "ARCH=$ARCH" >> $config_host_mak
6538
6539 if test "$default_devices" = "yes" ; then
6540   echo "CONFIG_MINIKCONF_MODE=--defconfig" >> $config_host_mak
6541 else
6542   echo "CONFIG_MINIKCONF_MODE=--allnoconfig" >> $config_host_mak
6543 fi
6544 if test "$debug_tcg" = "yes" ; then
6545   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
6546 fi
6547 if test "$strip_opt" = "yes" ; then
6548   echo "STRIP=${strip}" >> $config_host_mak
6549 fi
6550 if test "$bigendian" = "yes" ; then
6551   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
6552 fi
6553 if test "$mingw32" = "yes" ; then
6554   echo "CONFIG_WIN32=y" >> $config_host_mak
6555   rc_version=$(cat $source_path/VERSION)
6556   version_major=${rc_version%%.*}
6557   rc_version=${rc_version#*.}
6558   version_minor=${rc_version%%.*}
6559   rc_version=${rc_version#*.}
6560   version_subminor=${rc_version%%.*}
6561   version_micro=0
6562   echo "CONFIG_FILEVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
6563   echo "CONFIG_PRODUCTVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
6564   if test "$guest_agent_with_vss" = "yes" ; then
6565     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
6566     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
6567     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
6568   fi
6569   if test "$guest_agent_ntddscsi" = "yes" ; then
6570     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
6571   fi
6572   if test "$guest_agent_msi" = "yes"; then
6573     echo "CONFIG_QGA_MSI=y" >> $config_host_mak
6574     echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
6575     echo "QEMU_GA_MSI_WITH_VSS=${QEMU_GA_MSI_WITH_VSS}" >> $config_host_mak
6576     echo "QEMU_GA_MSI_ARCH=${QEMU_GA_MSI_ARCH}" >> $config_host_mak
6577     echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
6578     echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
6579     echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
6580   fi
6581 else
6582   echo "CONFIG_POSIX=y" >> $config_host_mak
6583 fi
6584
6585 if test "$linux" = "yes" ; then
6586   echo "CONFIG_LINUX=y" >> $config_host_mak
6587 fi
6588
6589 if test "$darwin" = "yes" ; then
6590   echo "CONFIG_DARWIN=y" >> $config_host_mak
6591 fi
6592
6593 if test "$solaris" = "yes" ; then
6594   echo "CONFIG_SOLARIS=y" >> $config_host_mak
6595 fi
6596 if test "$haiku" = "yes" ; then
6597   echo "CONFIG_HAIKU=y" >> $config_host_mak
6598 fi
6599 if test "$static" = "yes" ; then
6600   echo "CONFIG_STATIC=y" >> $config_host_mak
6601 fi
6602 if test "$profiler" = "yes" ; then
6603   echo "CONFIG_PROFILER=y" >> $config_host_mak
6604 fi
6605 if test "$want_tools" = "yes" ; then
6606   echo "CONFIG_TOOLS=y" >> $config_host_mak
6607 fi
6608 if test "$guest_agent" = "yes" ; then
6609   echo "CONFIG_GUEST_AGENT=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" >> $config_host_mak
6616 fi
6617 subdirs=
6618 if [ "$slirp" = "git" -o "$slirp" = "internal" ]; then
6619   subdirs="$subdirs slirp"
6620 fi
6621 if test "$vde" = "yes" ; then
6622   echo "CONFIG_VDE=y" >> $config_host_mak
6623   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
6624 fi
6625 if test "$netmap" = "yes" ; then
6626   echo "CONFIG_NETMAP=y" >> $config_host_mak
6627 fi
6628 if test "$l2tpv3" = "yes" ; then
6629   echo "CONFIG_L2TPV3=y" >> $config_host_mak
6630 fi
6631 if test "$gprof" = "yes" ; then
6632   echo "CONFIG_GPROF=y" >> $config_host_mak
6633 fi
6634 if test "$cap_ng" = "yes" ; then
6635   echo "CONFIG_LIBCAP_NG=y" >> $config_host_mak
6636   echo "LIBCAP_NG_LIBS=$cap_libs" >> $config_host_mak
6637 fi
6638 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
6639 for drv in $audio_drv_list; do
6640     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
6641     echo "$def=y" >> $config_host_mak
6642 done
6643 if test "$alsa" = "yes" ; then
6644     echo "CONFIG_ALSA=y" >> $config_host_mak
6645 fi
6646 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
6647 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
6648 if test "$libpulse" = "yes" ; then
6649     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
6650 fi
6651 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
6652 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
6653 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
6654 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
6655 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
6656 if test "$libjack" = "yes" ; then
6657     echo "CONFIG_LIBJACK=y" >> $config_host_mak
6658 fi
6659 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
6660 if test "$audio_win_int" = "yes" ; then
6661   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
6662 fi
6663 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
6664 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
6665 if test "$xfs" = "yes" ; then
6666   echo "CONFIG_XFS=y" >> $config_host_mak
6667 fi
6668 qemu_version=$(head $source_path/VERSION)
6669 echo "PKGVERSION=$pkgversion" >>$config_host_mak
6670 echo "SRC_PATH=$source_path" >> $config_host_mak
6671 echo "TARGET_DIRS=$target_list" >> $config_host_mak
6672 if [ "$docs" = "yes" ] ; then
6673   echo "BUILD_DOCS=yes" >> $config_host_mak
6674 fi
6675 if test "$modules" = "yes"; then
6676   # $shacmd can generate a hash started with digit, which the compiler doesn't
6677   # like as an symbol. So prefix it with an underscore
6678   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
6679   echo "CONFIG_MODULES=y" >> $config_host_mak
6680 fi
6681 if test "$module_upgrades" = "yes"; then
6682   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
6683 fi
6684 if test "$have_x11" = "yes" && test "$need_x11" = "yes"; then
6685   echo "CONFIG_X11=y" >> $config_host_mak
6686   echo "X11_CFLAGS=$x11_cflags" >> $config_host_mak
6687   echo "X11_LIBS=$x11_libs" >> $config_host_mak
6688 fi
6689 if test "$cocoa" = "yes" ; then
6690   echo "CONFIG_COCOA=y" >> $config_host_mak
6691 fi
6692 if test "$iconv" = "yes" ; then
6693   echo "CONFIG_ICONV=y" >> $config_host_mak
6694   echo "ICONV_CFLAGS=$iconv_cflags" >> $config_host_mak
6695   echo "ICONV_LIBS=$iconv_lib" >> $config_host_mak
6696 fi
6697 if test "$curses" = "yes" ; then
6698   echo "CONFIG_CURSES=y" >> $config_host_mak
6699   echo "CURSES_CFLAGS=$curses_inc" >> $config_host_mak
6700   echo "CURSES_LIBS=$curses_lib" >> $config_host_mak
6701 fi
6702 if test "$pipe2" = "yes" ; then
6703   echo "CONFIG_PIPE2=y" >> $config_host_mak
6704 fi
6705 if test "$accept4" = "yes" ; then
6706   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
6707 fi
6708 if test "$splice" = "yes" ; then
6709   echo "CONFIG_SPLICE=y" >> $config_host_mak
6710 fi
6711 if test "$eventfd" = "yes" ; then
6712   echo "CONFIG_EVENTFD=y" >> $config_host_mak
6713 fi
6714 if test "$memfd" = "yes" ; then
6715   echo "CONFIG_MEMFD=y" >> $config_host_mak
6716 fi
6717 if test "$have_usbfs" = "yes" ; then
6718   echo "CONFIG_USBFS=y" >> $config_host_mak
6719 fi
6720 if test "$fallocate" = "yes" ; then
6721   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
6722 fi
6723 if test "$fallocate_punch_hole" = "yes" ; then
6724   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
6725 fi
6726 if test "$fallocate_zero_range" = "yes" ; then
6727   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
6728 fi
6729 if test "$posix_fallocate" = "yes" ; then
6730   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
6731 fi
6732 if test "$sync_file_range" = "yes" ; then
6733   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
6734 fi
6735 if test "$fiemap" = "yes" ; then
6736   echo "CONFIG_FIEMAP=y" >> $config_host_mak
6737 fi
6738 if test "$dup3" = "yes" ; then
6739   echo "CONFIG_DUP3=y" >> $config_host_mak
6740 fi
6741 if test "$ppoll" = "yes" ; then
6742   echo "CONFIG_PPOLL=y" >> $config_host_mak
6743 fi
6744 if test "$prctl_pr_set_timerslack" = "yes" ; then
6745   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
6746 fi
6747 if test "$epoll" = "yes" ; then
6748   echo "CONFIG_EPOLL=y" >> $config_host_mak
6749 fi
6750 if test "$epoll_create1" = "yes" ; then
6751   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
6752 fi
6753 if test "$sendfile" = "yes" ; then
6754   echo "CONFIG_SENDFILE=y" >> $config_host_mak
6755 fi
6756 if test "$timerfd" = "yes" ; then
6757   echo "CONFIG_TIMERFD=y" >> $config_host_mak
6758 fi
6759 if test "$setns" = "yes" ; then
6760   echo "CONFIG_SETNS=y" >> $config_host_mak
6761 fi
6762 if test "$clock_adjtime" = "yes" ; then
6763   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
6764 fi
6765 if test "$syncfs" = "yes" ; then
6766   echo "CONFIG_SYNCFS=y" >> $config_host_mak
6767 fi
6768 if test "$kcov" = "yes" ; then
6769   echo "CONFIG_KCOV=y" >> $config_host_mak
6770 fi
6771 if test "$btrfs" = "yes" ; then
6772   echo "CONFIG_BTRFS=y" >> $config_host_mak
6773 fi
6774 if test "$inotify" = "yes" ; then
6775   echo "CONFIG_INOTIFY=y" >> $config_host_mak
6776 fi
6777 if test "$inotify1" = "yes" ; then
6778   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
6779 fi
6780 if test "$sem_timedwait" = "yes" ; then
6781   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
6782 fi
6783 if test "$strchrnul" = "yes" ; then
6784   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
6785 fi
6786 if test "$st_atim" = "yes" ; then
6787   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
6788 fi
6789 if test "$byteswap_h" = "yes" ; then
6790   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
6791 fi
6792 if test "$bswap_h" = "yes" ; then
6793   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
6794 fi
6795 if test "$curl" = "yes" ; then
6796   echo "CONFIG_CURL=y" >> $config_host_mak
6797   echo "CURL_CFLAGS=$curl_cflags" >> $config_host_mak
6798   echo "CURL_LIBS=$curl_libs" >> $config_host_mak
6799 fi
6800 if test "$brlapi" = "yes" ; then
6801   echo "CONFIG_BRLAPI=y" >> $config_host_mak
6802   echo "BRLAPI_LIBS=$brlapi_libs" >> $config_host_mak
6803 fi
6804 if test "$gtk" = "yes" ; then
6805   echo "CONFIG_GTK=y" >> $config_host_mak
6806   echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
6807   echo "GTK_LIBS=$gtk_libs" >> $config_host_mak
6808   if test "$gtk_gl" = "yes" ; then
6809     echo "CONFIG_GTK_GL=y" >> $config_host_mak
6810   fi
6811 fi
6812 if test "$gio" = "yes" ; then
6813     echo "CONFIG_GIO=y" >> $config_host_mak
6814     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
6815     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
6816     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
6817 fi
6818 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
6819 if test "$gnutls" = "yes" ; then
6820   echo "CONFIG_GNUTLS=y" >> $config_host_mak
6821   echo "GNUTLS_CFLAGS=$gnutls_cflags" >> $config_host_mak
6822   echo "GNUTLS_LIBS=$gnutls_libs" >> $config_host_mak
6823 fi
6824 if test "$gcrypt" = "yes" ; then
6825   echo "CONFIG_GCRYPT=y" >> $config_host_mak
6826   if test "$gcrypt_hmac" = "yes" ; then
6827     echo "CONFIG_GCRYPT_HMAC=y" >> $config_host_mak
6828   fi
6829   echo "GCRYPT_CFLAGS=$gcrypt_cflags" >> $config_host_mak
6830   echo "GCRYPT_LIBS=$gcrypt_libs" >> $config_host_mak
6831 fi
6832 if test "$nettle" = "yes" ; then
6833   echo "CONFIG_NETTLE=y" >> $config_host_mak
6834   echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
6835   echo "NETTLE_CFLAGS=$nettle_cflags" >> $config_host_mak
6836   echo "NETTLE_LIBS=$nettle_libs" >> $config_host_mak
6837 fi
6838 if test "$qemu_private_xts" = "yes" ; then
6839   echo "CONFIG_QEMU_PRIVATE_XTS=y" >> $config_host_mak
6840 fi
6841 if test "$tasn1" = "yes" ; then
6842   echo "CONFIG_TASN1=y" >> $config_host_mak
6843 fi
6844 if test "$auth_pam" = "yes" ; then
6845     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
6846 fi
6847 if test "$have_ifaddrs_h" = "yes" ; then
6848     echo "HAVE_IFADDRS_H=y" >> $config_host_mak
6849 fi
6850 if test "$have_drm_h" = "yes" ; then
6851   echo "HAVE_DRM_H=y" >> $config_host_mak
6852 fi
6853 if test "$have_broken_size_max" = "yes" ; then
6854     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
6855 fi
6856 if test "$have_openpty" = "yes" ; then
6857     echo "HAVE_OPENPTY=y" >> $config_host_mak
6858 fi
6859 if test "$have_sys_signal_h" = "yes" ; then
6860     echo "HAVE_SYS_SIGNAL_H=y" >> $config_host_mak
6861 fi
6862
6863 # Work around a system header bug with some kernel/XFS header
6864 # versions where they both try to define 'struct fsxattr':
6865 # xfs headers will not try to redefine structs from linux headers
6866 # if this macro is set.
6867 if test "$have_fsxattr" = "yes" ; then
6868     echo "HAVE_FSXATTR=y" >> $config_host_mak
6869 fi
6870 if test "$have_copy_file_range" = "yes" ; then
6871     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
6872 fi
6873 if test "$vte" = "yes" ; then
6874   echo "CONFIG_VTE=y" >> $config_host_mak
6875   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
6876   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
6877 fi
6878 if test "$virglrenderer" = "yes" ; then
6879   echo "CONFIG_VIRGL=y" >> $config_host_mak
6880   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
6881   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
6882 fi
6883 if test "$xen" = "yes" ; then
6884   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
6885   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
6886   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
6887   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
6888 fi
6889 if test "$linux_aio" = "yes" ; then
6890   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
6891 fi
6892 if test "$linux_io_uring" = "yes" ; then
6893   echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
6894   echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
6895   echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
6896 fi
6897 if test "$attr" = "yes" ; then
6898   echo "CONFIG_ATTR=y" >> $config_host_mak
6899   echo "LIBATTR_LIBS=$libattr_libs" >> $config_host_mak
6900 fi
6901 if test "$libattr" = "yes" ; then
6902   echo "CONFIG_LIBATTR=y" >> $config_host_mak
6903 fi
6904 if test "$virtfs" = "yes" ; then
6905   echo "CONFIG_VIRTFS=y" >> $config_host_mak
6906 fi
6907 if test "$mpath" = "yes" ; then
6908   echo "CONFIG_MPATH=y" >> $config_host_mak
6909   if test "$mpathpersist_new_api" = "yes"; then
6910     echo "CONFIG_MPATH_NEW_API=y" >> $config_host_mak
6911   fi
6912 fi
6913 if test "$vhost_scsi" = "yes" ; then
6914   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
6915 fi
6916 if test "$vhost_net" = "yes" ; then
6917   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
6918 fi
6919 if test "$vhost_net_user" = "yes" ; then
6920   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
6921 fi
6922 if test "$vhost_net_vdpa" = "yes" ; then
6923   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
6924 fi
6925 if test "$vhost_crypto" = "yes" ; then
6926   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
6927 fi
6928 if test "$vhost_vsock" = "yes" ; then
6929   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
6930   if test "$vhost_user" = "yes" ; then
6931     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
6932   fi
6933 fi
6934 if test "$vhost_kernel" = "yes" ; then
6935   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
6936 fi
6937 if test "$vhost_user" = "yes" ; then
6938   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
6939 fi
6940 if test "$vhost_vdpa" = "yes" ; then
6941   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
6942 fi
6943 if test "$vhost_user_fs" = "yes" ; then
6944   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
6945 fi
6946 if test "$blobs" = "yes" ; then
6947   echo "INSTALL_BLOBS=yes" >> $config_host_mak
6948 fi
6949 if test "$iovec" = "yes" ; then
6950   echo "CONFIG_IOVEC=y" >> $config_host_mak
6951 fi
6952 if test "$preadv" = "yes" ; then
6953   echo "CONFIG_PREADV=y" >> $config_host_mak
6954 fi
6955 if test "$fdt" != "no" ; then
6956   echo "CONFIG_FDT=y" >> $config_host_mak
6957   echo "FDT_CFLAGS=$fdt_cflags" >> $config_host_mak
6958   echo "FDT_LIBS=$fdt_ldflags $fdt_libs" >> $config_host_mak
6959 fi
6960 if test "$membarrier" = "yes" ; then
6961   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
6962 fi
6963 if test "$signalfd" = "yes" ; then
6964   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
6965 fi
6966 if test "$optreset" = "yes" ; then
6967   echo "HAVE_OPTRESET=y" >> $config_host_mak
6968 fi
6969 if test "$tcg" = "yes"; then
6970   echo "CONFIG_TCG=y" >> $config_host_mak
6971   if test "$tcg_interpreter" = "yes" ; then
6972     echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
6973   fi
6974 fi
6975 if test "$fdatasync" = "yes" ; then
6976   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
6977 fi
6978 if test "$madvise" = "yes" ; then
6979   echo "CONFIG_MADVISE=y" >> $config_host_mak
6980 fi
6981 if test "$posix_madvise" = "yes" ; then
6982   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
6983 fi
6984 if test "$posix_memalign" = "yes" ; then
6985   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
6986 fi
6987 if test "$spice" = "yes" ; then
6988   echo "CONFIG_SPICE=y" >> $config_host_mak
6989   echo "SPICE_CFLAGS=$spice_cflags" >> $config_host_mak
6990   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
6991 fi
6992
6993 if test "$smartcard" = "yes" ; then
6994   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
6995   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
6996   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
6997 fi
6998
6999 if test "$libusb" = "yes" ; then
7000   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
7001   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
7002   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
7003 fi
7004
7005 if test "$usb_redir" = "yes" ; then
7006   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
7007   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
7008   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
7009 fi
7010
7011 if test "$opengl" = "yes" ; then
7012   echo "CONFIG_OPENGL=y" >> $config_host_mak
7013   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
7014   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
7015   if test "$opengl_dmabuf" = "yes" ; then
7016     echo "CONFIG_OPENGL_DMABUF=y" >> $config_host_mak
7017   fi
7018 fi
7019
7020 if test "$gbm" = "yes" ; then
7021     echo "CONFIG_GBM=y" >> $config_host_mak
7022     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
7023     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
7024 fi
7025
7026
7027 if test "$malloc_trim" = "yes" ; then
7028   echo "CONFIG_MALLOC_TRIM=y" >> $config_host_mak
7029 fi
7030
7031 if test "$avx2_opt" = "yes" ; then
7032   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
7033 fi
7034
7035 if test "$avx512f_opt" = "yes" ; then
7036   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
7037 fi
7038
7039 if test "$lzo" = "yes" ; then
7040   echo "CONFIG_LZO=y" >> $config_host_mak
7041   echo "LZO_LIBS=$lzo_libs" >> $config_host_mak
7042 fi
7043
7044 if test "$snappy" = "yes" ; then
7045   echo "CONFIG_SNAPPY=y" >> $config_host_mak
7046   echo "SNAPPY_LIBS=$snappy_libs" >> $config_host_mak
7047 fi
7048
7049 if test "$bzip2" = "yes" ; then
7050   echo "CONFIG_BZIP2=y" >> $config_host_mak
7051   echo "BZIP2_LIBS=-lbz2" >> $config_host_mak
7052 fi
7053
7054 if test "$lzfse" = "yes" ; then
7055   echo "CONFIG_LZFSE=y" >> $config_host_mak
7056   echo "LZFSE_LIBS=-llzfse" >> $config_host_mak
7057 fi
7058
7059 if test "$zstd" = "yes" ; then
7060   echo "CONFIG_ZSTD=y" >> $config_host_mak
7061   echo "ZSTD_CFLAGS=$zstd_cflags" >> $config_host_mak
7062   echo "ZSTD_LIBS=$zstd_libs" >> $config_host_mak
7063 fi
7064
7065 if test "$libiscsi" = "yes" ; then
7066   echo "CONFIG_LIBISCSI=y" >> $config_host_mak
7067   echo "LIBISCSI_CFLAGS=$libiscsi_cflags" >> $config_host_mak
7068   echo "LIBISCSI_LIBS=$libiscsi_libs" >> $config_host_mak
7069 fi
7070
7071 if test "$libnfs" = "yes" ; then
7072   echo "CONFIG_LIBNFS=y" >> $config_host_mak
7073   echo "LIBNFS_LIBS=$libnfs_libs" >> $config_host_mak
7074 fi
7075
7076 if test "$seccomp" = "yes"; then
7077   echo "CONFIG_SECCOMP=y" >> $config_host_mak
7078   echo "SECCOMP_CFLAGS=$seccomp_cflags" >> $config_host_mak
7079   echo "SECCOMP_LIBS=$seccomp_libs" >> $config_host_mak
7080 fi
7081
7082 # XXX: suppress that
7083 if [ "$bsd" = "yes" ] ; then
7084   echo "CONFIG_BSD=y" >> $config_host_mak
7085 fi
7086
7087 if test "$localtime_r" = "yes" ; then
7088   echo "CONFIG_LOCALTIME_R=y" >> $config_host_mak
7089 fi
7090 if test "$qom_cast_debug" = "yes" ; then
7091   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
7092 fi
7093 if test "$rbd" = "yes" ; then
7094   echo "CONFIG_RBD=y" >> $config_host_mak
7095   echo "RBD_LIBS=$rbd_libs" >> $config_host_mak
7096 fi
7097
7098 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
7099 if test "$coroutine_pool" = "yes" ; then
7100   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
7101 else
7102   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
7103 fi
7104
7105 if test "$debug_stack_usage" = "yes" ; then
7106   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
7107 fi
7108
7109 if test "$crypto_afalg" = "yes" ; then
7110   echo "CONFIG_AF_ALG=y" >> $config_host_mak
7111 fi
7112
7113 if test "$open_by_handle_at" = "yes" ; then
7114   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
7115 fi
7116
7117 if test "$linux_magic_h" = "yes" ; then
7118   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
7119 fi
7120
7121 if test "$valgrind_h" = "yes" ; then
7122   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
7123 fi
7124
7125 if test "$have_asan_iface_fiber" = "yes" ; then
7126     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
7127 fi
7128
7129 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
7130     echo "CONFIG_TSAN=y" >> $config_host_mak
7131 fi
7132
7133 if test "$has_environ" = "yes" ; then
7134   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
7135 fi
7136
7137 if test "$cpuid_h" = "yes" ; then
7138   echo "CONFIG_CPUID_H=y" >> $config_host_mak
7139 fi
7140
7141 if test "$int128" = "yes" ; then
7142   echo "CONFIG_INT128=y" >> $config_host_mak
7143 fi
7144
7145 if test "$atomic128" = "yes" ; then
7146   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
7147 fi
7148
7149 if test "$cmpxchg128" = "yes" ; then
7150   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
7151 fi
7152
7153 if test "$atomic64" = "yes" ; then
7154   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
7155 fi
7156
7157 if test "$attralias" = "yes" ; then
7158   echo "CONFIG_ATTRIBUTE_ALIAS=y" >> $config_host_mak
7159 fi
7160
7161 if test "$getauxval" = "yes" ; then
7162   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
7163 fi
7164
7165 if test "$glusterfs" = "yes" ; then
7166   echo "CONFIG_GLUSTERFS=y" >> $config_host_mak
7167   echo "GLUSTERFS_CFLAGS=$glusterfs_cflags" >> $config_host_mak
7168   echo "GLUSTERFS_LIBS=$glusterfs_libs" >> $config_host_mak
7169 fi
7170
7171 if test "$glusterfs_xlator_opt" = "yes" ; then
7172   echo "CONFIG_GLUSTERFS_XLATOR_OPT=y" >> $config_host_mak
7173 fi
7174
7175 if test "$glusterfs_discard" = "yes" ; then
7176   echo "CONFIG_GLUSTERFS_DISCARD=y" >> $config_host_mak
7177 fi
7178
7179 if test "$glusterfs_fallocate" = "yes" ; then
7180   echo "CONFIG_GLUSTERFS_FALLOCATE=y" >> $config_host_mak
7181 fi
7182
7183 if test "$glusterfs_zerofill" = "yes" ; then
7184   echo "CONFIG_GLUSTERFS_ZEROFILL=y" >> $config_host_mak
7185 fi
7186
7187 if test "$glusterfs_ftruncate_has_stat" = "yes" ; then
7188   echo "CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT=y" >> $config_host_mak
7189 fi
7190
7191 if test "$glusterfs_iocb_has_stat" = "yes" ; then
7192   echo "CONFIG_GLUSTERFS_IOCB_HAS_STAT=y" >> $config_host_mak
7193 fi
7194
7195 if test "$libssh" = "yes" ; then
7196   echo "CONFIG_LIBSSH=y" >> $config_host_mak
7197   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
7198   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
7199 fi
7200
7201 if test "$live_block_migration" = "yes" ; then
7202   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
7203 fi
7204
7205 if test "$tpm" = "yes"; then
7206   echo 'CONFIG_TPM=y' >> $config_host_mak
7207 fi
7208
7209 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
7210 if have_backend "nop"; then
7211   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
7212 fi
7213 if have_backend "simple"; then
7214   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
7215   # Set the appropriate trace file.
7216   trace_file="\"$trace_file-\" FMT_pid"
7217 fi
7218 if have_backend "log"; then
7219   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
7220 fi
7221 if have_backend "ust"; then
7222   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
7223   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
7224   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
7225 fi
7226 if have_backend "dtrace"; then
7227   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
7228   if test "$trace_backend_stap" = "yes" ; then
7229     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
7230   fi
7231 fi
7232 if have_backend "ftrace"; then
7233   if test "$linux" = "yes" ; then
7234     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
7235   else
7236     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
7237   fi
7238 fi
7239 if have_backend "syslog"; then
7240   if test "$posix_syslog" = "yes" ; then
7241     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
7242   else
7243     feature_not_found "syslog(trace backend)" "syslog not available"
7244   fi
7245 fi
7246 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
7247
7248 if test "$rdma" = "yes" ; then
7249   echo "CONFIG_RDMA=y" >> $config_host_mak
7250   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
7251 fi
7252
7253 if test "$pvrdma" = "yes" ; then
7254   echo "CONFIG_PVRDMA=y" >> $config_host_mak
7255 fi
7256
7257 if test "$have_rtnetlink" = "yes" ; then
7258   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
7259 fi
7260
7261 if test "$libxml2" = "yes" ; then
7262   echo "CONFIG_LIBXML2=y" >> $config_host_mak
7263   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
7264   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
7265 fi
7266
7267 if test "$replication" = "yes" ; then
7268   echo "CONFIG_REPLICATION=y" >> $config_host_mak
7269 fi
7270
7271 if test "$have_af_vsock" = "yes" ; then
7272   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
7273 fi
7274
7275 if test "$have_sysmacros" = "yes" ; then
7276   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
7277 fi
7278
7279 if test "$have_static_assert" = "yes" ; then
7280   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
7281 fi
7282
7283 if test "$have_utmpx" = "yes" ; then
7284   echo "HAVE_UTMPX=y" >> $config_host_mak
7285 fi
7286 if test "$have_getrandom" = "yes" ; then
7287   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
7288 fi
7289 if test "$ivshmem" = "yes" ; then
7290   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
7291 fi
7292 if test "$capstone" != "no" ; then
7293   echo "CONFIG_CAPSTONE=y" >> $config_host_mak
7294   echo "CAPSTONE_CFLAGS=$capstone_cflags" >> $config_host_mak
7295   echo "CAPSTONE_LIBS=$capstone_libs" >> $config_host_mak
7296 fi
7297 if test "$debug_mutex" = "yes" ; then
7298   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
7299 fi
7300
7301 # Hold two types of flag:
7302 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
7303 #                                     a thread we have a handle to
7304 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
7305 #                                     platform
7306 if test "$pthread_setname_np_w_tid" = "yes" ; then
7307   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
7308   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
7309 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
7310   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
7311   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
7312 fi
7313
7314 if test "$libpmem" = "yes" ; then
7315   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
7316   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
7317   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
7318 fi
7319
7320 if test "$libdaxctl" = "yes" ; then
7321   echo "CONFIG_LIBDAXCTL=y" >> $config_host_mak
7322   echo "LIBDAXCTL_LIBS=$libdaxctl_libs" >> $config_host_mak
7323 fi
7324
7325 if test "$bochs" = "yes" ; then
7326   echo "CONFIG_BOCHS=y" >> $config_host_mak
7327 fi
7328 if test "$cloop" = "yes" ; then
7329   echo "CONFIG_CLOOP=y" >> $config_host_mak
7330 fi
7331 if test "$dmg" = "yes" ; then
7332   echo "CONFIG_DMG=y" >> $config_host_mak
7333 fi
7334 if test "$qcow1" = "yes" ; then
7335   echo "CONFIG_QCOW1=y" >> $config_host_mak
7336 fi
7337 if test "$vdi" = "yes" ; then
7338   echo "CONFIG_VDI=y" >> $config_host_mak
7339 fi
7340 if test "$vvfat" = "yes" ; then
7341   echo "CONFIG_VVFAT=y" >> $config_host_mak
7342 fi
7343 if test "$qed" = "yes" ; then
7344   echo "CONFIG_QED=y" >> $config_host_mak
7345 fi
7346 if test "$parallels" = "yes" ; then
7347   echo "CONFIG_PARALLELS=y" >> $config_host_mak
7348 fi
7349 if test "$sheepdog" = "yes" ; then
7350   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
7351 fi
7352 if test "$pty_h" = "yes" ; then
7353   echo "HAVE_PTY_H=y" >> $config_host_mak
7354 fi
7355 if test "$have_mlockall" = "yes" ; then
7356   echo "HAVE_MLOCKALL=y" >> $config_host_mak
7357 fi
7358 if test "$fuzzing" = "yes" ; then
7359   # If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
7360   # needed CFLAGS have already been provided
7361   if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
7362     QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
7363     FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
7364   else
7365     FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
7366   fi
7367 fi
7368
7369 if test "$plugins" = "yes" ; then
7370     echo "CONFIG_PLUGIN=y" >> $config_host_mak
7371     # Copy the export object list to the build dir
7372     if test "$ld_dynamic_list" = "yes" ; then
7373         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
7374         ld_symbols=qemu-plugins-ld.symbols
7375         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
7376     elif test "$ld_exported_symbols_list" = "yes" ; then
7377         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
7378         ld64_symbols=qemu-plugins-ld64.symbols
7379         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
7380         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
7381             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
7382     else
7383         error_exit \
7384             "If \$plugins=yes, either \$ld_dynamic_list or " \
7385             "\$ld_exported_symbols_list should have been set to 'yes'."
7386     fi
7387 fi
7388
7389 if test -n "$gdb_bin" ; then
7390     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
7391 fi
7392
7393 if test "$secret_keyring" = "yes" ; then
7394   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
7395 fi
7396
7397 if test "$tcg_interpreter" = "yes"; then
7398   QEMU_INCLUDES="-iquote ${source_path}/tcg/tci $QEMU_INCLUDES"
7399 elif test "$ARCH" = "sparc64" ; then
7400   QEMU_INCLUDES="-iquote ${source_path}/tcg/sparc $QEMU_INCLUDES"
7401 elif test "$ARCH" = "s390x" ; then
7402   QEMU_INCLUDES="-iquote ${source_path}/tcg/s390 $QEMU_INCLUDES"
7403 elif test "$ARCH" = "x86_64" || test "$ARCH" = "x32" ; then
7404   QEMU_INCLUDES="-iquote ${source_path}/tcg/i386 $QEMU_INCLUDES"
7405 elif test "$ARCH" = "ppc64" ; then
7406   QEMU_INCLUDES="-iquote ${source_path}/tcg/ppc $QEMU_INCLUDES"
7407 elif test "$ARCH" = "riscv32" || test "$ARCH" = "riscv64" ; then
7408   QEMU_INCLUDES="-I${source_path}/tcg/riscv $QEMU_INCLUDES"
7409 else
7410   QEMU_INCLUDES="-iquote ${source_path}/tcg/${ARCH} $QEMU_INCLUDES"
7411 fi
7412
7413 echo "ROMS=$roms" >> $config_host_mak
7414 echo "MAKE=$make" >> $config_host_mak
7415 echo "PYTHON=$python" >> $config_host_mak
7416 echo "SPHINX_BUILD=$sphinx_build" >> $config_host_mak
7417 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
7418 echo "MESON=$meson" >> $config_host_mak
7419 echo "CC=$cc" >> $config_host_mak
7420 if $iasl -h > /dev/null 2>&1; then
7421   echo "CONFIG_IASL=$iasl" >> $config_host_mak
7422 fi
7423 echo "CXX=$cxx" >> $config_host_mak
7424 echo "OBJCC=$objcc" >> $config_host_mak
7425 echo "AR=$ar" >> $config_host_mak
7426 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
7427 echo "AS=$as" >> $config_host_mak
7428 echo "CCAS=$ccas" >> $config_host_mak
7429 echo "CPP=$cpp" >> $config_host_mak
7430 echo "OBJCOPY=$objcopy" >> $config_host_mak
7431 echo "LD=$ld" >> $config_host_mak
7432 echo "RANLIB=$ranlib" >> $config_host_mak
7433 echo "NM=$nm" >> $config_host_mak
7434 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
7435 echo "WINDRES=$windres" >> $config_host_mak
7436 echo "CFLAGS=$CFLAGS" >> $config_host_mak
7437 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
7438 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
7439 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
7440 echo "QEMU_INCLUDES=$QEMU_INCLUDES" >> $config_host_mak
7441 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
7442 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
7443 if test "$sparse" = "yes" ; then
7444   echo "SPARSE_CFLAGS = -Wbitwise -Wno-transparent-union -Wno-old-initializer -Wno-non-pointer-null" >> $config_host_mak
7445 fi
7446 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
7447 echo "LDFLAGS_NOPIE=$LDFLAGS_NOPIE" >> $config_host_mak
7448 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
7449 echo "PTHREAD_LIB=$PTHREAD_LIB" >> $config_host_mak
7450 echo "EXESUF=$EXESUF" >> $config_host_mak
7451 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
7452 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
7453 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
7454 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
7455 if test "$gcov" = "yes" ; then
7456   echo "CONFIG_GCOV=y" >> $config_host_mak
7457 fi
7458
7459 if test "$libudev" != "no"; then
7460     echo "CONFIG_LIBUDEV=y" >> $config_host_mak
7461     echo "LIBUDEV_LIBS=$libudev_libs" >> $config_host_mak
7462 fi
7463 if test "$fuzzing" != "no"; then
7464     echo "CONFIG_FUZZ=y" >> $config_host_mak
7465 fi
7466 echo "FUZZ_EXE_LDFLAGS=$FUZZ_EXE_LDFLAGS" >> $config_host_mak
7467
7468 if test "$edk2_blobs" = "yes" ; then
7469   echo "DECOMPRESS_EDK2_BLOBS=y" >> $config_host_mak
7470 fi
7471
7472 if test "$rng_none" = "yes"; then
7473   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
7474 fi
7475
7476 # use included Linux headers
7477 if test "$linux" = "yes" ; then
7478   mkdir -p linux-headers
7479   case "$cpu" in
7480   i386|x86_64|x32)
7481     linux_arch=x86
7482     ;;
7483   ppc|ppc64|ppc64le)
7484     linux_arch=powerpc
7485     ;;
7486   s390x)
7487     linux_arch=s390
7488     ;;
7489   aarch64)
7490     linux_arch=arm64
7491     ;;
7492   mips64)
7493     linux_arch=mips
7494     ;;
7495   *)
7496     # For most CPUs the kernel architecture name and QEMU CPU name match.
7497     linux_arch="$cpu"
7498     ;;
7499   esac
7500     # For non-KVM architectures we will not have asm headers
7501     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
7502       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
7503     fi
7504 fi
7505
7506 for target in $target_list; do
7507 target_dir="$target"
7508 config_target_mak=$target_dir/config-target.mak
7509 target_name=$(echo $target | cut -d '-' -f 1)
7510 target_aligned_only="no"
7511 case "$target_name" in
7512   alpha|hppa|mips64el|mips64|mipsel|mips|mipsn32|mipsn32el|sh4|sh4eb|sparc|sparc64|sparc32plus|xtensa|xtensaeb)
7513   target_aligned_only="yes"
7514   ;;
7515 esac
7516 target_bigendian="no"
7517 case "$target_name" in
7518   armeb|aarch64_be|hppa|lm32|m68k|microblaze|mips|mipsn32|mips64|moxie|or1k|ppc|ppc64|ppc64abi32|s390x|sh4eb|sparc|sparc64|sparc32plus|xtensaeb)
7519   target_bigendian="yes"
7520   ;;
7521 esac
7522 target_softmmu="no"
7523 target_user_only="no"
7524 target_linux_user="no"
7525 target_bsd_user="no"
7526 case "$target" in
7527   ${target_name}-softmmu)
7528     target_softmmu="yes"
7529     ;;
7530   ${target_name}-linux-user)
7531     target_user_only="yes"
7532     target_linux_user="yes"
7533     ;;
7534   ${target_name}-bsd-user)
7535     target_user_only="yes"
7536     target_bsd_user="yes"
7537     ;;
7538   *)
7539     error_exit "Target '$target' not recognised"
7540     exit 1
7541     ;;
7542 esac
7543
7544 mkdir -p $target_dir
7545 echo "# Automatically generated by configure - do not modify" > $config_target_mak
7546
7547 bflt="no"
7548 mttcg="no"
7549 interp_prefix1=$(echo "$interp_prefix" | sed "s/%M/$target_name/g")
7550 gdb_xml_files=""
7551
7552 TARGET_ARCH="$target_name"
7553 TARGET_BASE_ARCH=""
7554 TARGET_ABI_DIR=""
7555 TARGET_SYSTBL_ABI=""
7556 TARGET_SYSTBL=""
7557
7558 case "$target_name" in
7559   i386)
7560     mttcg="yes"
7561     gdb_xml_files="i386-32bit.xml"
7562     TARGET_SYSTBL_ABI=i386
7563     TARGET_SYSTBL=syscall_32.tbl
7564   ;;
7565   x86_64)
7566     TARGET_BASE_ARCH=i386
7567     TARGET_SYSTBL_ABI=common,64
7568     TARGET_SYSTBL=syscall_64.tbl
7569     mttcg="yes"
7570     gdb_xml_files="i386-64bit.xml"
7571   ;;
7572   alpha)
7573     mttcg="yes"
7574     TARGET_SYSTBL_ABI=common
7575   ;;
7576   arm|armeb)
7577     TARGET_ARCH=arm
7578     TARGET_SYSTBL_ABI=common,oabi
7579     bflt="yes"
7580     mttcg="yes"
7581     gdb_xml_files="arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml arm-m-profile.xml"
7582   ;;
7583   aarch64|aarch64_be)
7584     TARGET_ARCH=aarch64
7585     TARGET_BASE_ARCH=arm
7586     bflt="yes"
7587     mttcg="yes"
7588     gdb_xml_files="aarch64-core.xml aarch64-fpu.xml arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml arm-m-profile.xml"
7589   ;;
7590   avr)
7591     gdb_xml_files="avr-cpu.xml"
7592     target_compiler=$cross_cc_avr
7593   ;;
7594   cris)
7595   ;;
7596   hppa)
7597     mttcg="yes"
7598     TARGET_SYSTBL_ABI=common,32
7599   ;;
7600   lm32)
7601   ;;
7602   m68k)
7603     bflt="yes"
7604     gdb_xml_files="cf-core.xml cf-fp.xml m68k-core.xml m68k-fp.xml"
7605     TARGET_SYSTBL_ABI=common
7606   ;;
7607   microblaze|microblazeel)
7608     TARGET_ARCH=microblaze
7609     TARGET_SYSTBL_ABI=common
7610     mttcg="yes"
7611     bflt="yes"
7612   ;;
7613   mips|mipsel)
7614     mttcg="yes"
7615     TARGET_ARCH=mips
7616     echo "TARGET_ABI_MIPSO32=y" >> $config_target_mak
7617     TARGET_SYSTBL_ABI=o32
7618     TARGET_SYSTBL=syscall_o32.tbl
7619   ;;
7620   mipsn32|mipsn32el)
7621     mttcg="yes"
7622     TARGET_ARCH=mips64
7623     TARGET_BASE_ARCH=mips
7624     echo "TARGET_ABI_MIPSN32=y" >> $config_target_mak
7625     echo "TARGET_ABI32=y" >> $config_target_mak
7626     TARGET_SYSTBL_ABI=n32
7627     TARGET_SYSTBL=syscall_n32.tbl
7628   ;;
7629   mips64|mips64el)
7630     mttcg="no"
7631     TARGET_ARCH=mips64
7632     TARGET_BASE_ARCH=mips
7633     echo "TARGET_ABI_MIPSN64=y" >> $config_target_mak
7634     TARGET_SYSTBL_ABI=n64
7635     TARGET_SYSTBL=syscall_n64.tbl
7636   ;;
7637   moxie)
7638   ;;
7639   nios2)
7640   ;;
7641   or1k)
7642     TARGET_ARCH=openrisc
7643     TARGET_BASE_ARCH=openrisc
7644   ;;
7645   ppc)
7646     gdb_xml_files="power-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
7647     TARGET_SYSTBL_ABI=common,nospu,32
7648   ;;
7649   ppc64)
7650     TARGET_BASE_ARCH=ppc
7651     TARGET_ABI_DIR=ppc
7652     TARGET_SYSTBL_ABI=common,nospu,64
7653     mttcg=yes
7654     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7655   ;;
7656   ppc64le)
7657     TARGET_ARCH=ppc64
7658     TARGET_BASE_ARCH=ppc
7659     TARGET_ABI_DIR=ppc
7660     TARGET_SYSTBL_ABI=common,nospu,64
7661     mttcg=yes
7662     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7663   ;;
7664   ppc64abi32)
7665     TARGET_ARCH=ppc64
7666     TARGET_BASE_ARCH=ppc
7667     TARGET_ABI_DIR=ppc
7668     TARGET_SYSTBL_ABI=common,nospu,32
7669     echo "TARGET_ABI32=y" >> $config_target_mak
7670     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7671   ;;
7672   riscv32)
7673     TARGET_BASE_ARCH=riscv
7674     TARGET_ABI_DIR=riscv
7675     mttcg=yes
7676     gdb_xml_files="riscv-32bit-cpu.xml riscv-32bit-fpu.xml riscv-64bit-fpu.xml riscv-32bit-csr.xml riscv-32bit-virtual.xml"
7677   ;;
7678   riscv64)
7679     TARGET_BASE_ARCH=riscv
7680     TARGET_ABI_DIR=riscv
7681     mttcg=yes
7682     gdb_xml_files="riscv-64bit-cpu.xml riscv-32bit-fpu.xml riscv-64bit-fpu.xml riscv-64bit-csr.xml riscv-64bit-virtual.xml"
7683   ;;
7684   rx)
7685     TARGET_ARCH=rx
7686     bflt="yes"
7687     target_compiler=$cross_cc_rx
7688     gdb_xml_files="rx-core.xml"
7689   ;;
7690   sh4|sh4eb)
7691     TARGET_ARCH=sh4
7692     TARGET_SYSTBL_ABI=common
7693     bflt="yes"
7694   ;;
7695   sparc)
7696     TARGET_SYSTBL_ABI=common,32
7697   ;;
7698   sparc64)
7699     TARGET_BASE_ARCH=sparc
7700     TARGET_SYSTBL_ABI=common,64
7701   ;;
7702   sparc32plus)
7703     TARGET_ARCH=sparc64
7704     TARGET_BASE_ARCH=sparc
7705     TARGET_ABI_DIR=sparc
7706     TARGET_SYSTBL_ABI=common,32
7707     echo "TARGET_ABI32=y" >> $config_target_mak
7708   ;;
7709   s390x)
7710     TARGET_SYSTBL_ABI=common,64
7711     mttcg=yes
7712     gdb_xml_files="s390x-core64.xml s390-acr.xml s390-fpr.xml s390-vx.xml s390-cr.xml s390-virt.xml s390-gs.xml"
7713   ;;
7714   tilegx)
7715   ;;
7716   tricore)
7717   ;;
7718   unicore32)
7719   ;;
7720   xtensa|xtensaeb)
7721     TARGET_ARCH=xtensa
7722     TARGET_SYSTBL_ABI=common
7723     bflt="yes"
7724     mttcg="yes"
7725   ;;
7726   *)
7727     error_exit "Unsupported target CPU"
7728   ;;
7729 esac
7730 # TARGET_BASE_ARCH needs to be defined after TARGET_ARCH
7731 if [ "$TARGET_BASE_ARCH" = "" ]; then
7732   TARGET_BASE_ARCH=$TARGET_ARCH
7733 fi
7734 if [ "$TARGET_SYSTBL_ABI" != "" ] && [ "$TARGET_SYSTBL" = "" ]; then
7735   TARGET_SYSTBL=syscall.tbl
7736 fi
7737
7738 upper() {
7739     echo "$@"| LC_ALL=C tr '[a-z]' '[A-Z]'
7740 }
7741
7742 target_arch_name="$(upper $TARGET_ARCH)"
7743 echo "TARGET_$target_arch_name=y" >> $config_target_mak
7744 echo "TARGET_NAME=$target_name" >> $config_target_mak
7745 echo "TARGET_BASE_ARCH=$TARGET_BASE_ARCH" >> $config_target_mak
7746 if [ "$TARGET_ABI_DIR" = "" ]; then
7747   TARGET_ABI_DIR=$TARGET_ARCH
7748 fi
7749 echo "TARGET_ABI_DIR=$TARGET_ABI_DIR" >> $config_target_mak
7750 if [ "$HOST_VARIANT_DIR" != "" ]; then
7751     echo "HOST_VARIANT_DIR=$HOST_VARIANT_DIR" >> $config_target_mak
7752 fi
7753 if [ "$TARGET_SYSTBL_ABI" != "" ]; then
7754     echo "TARGET_SYSTBL_ABI=$TARGET_SYSTBL_ABI" >> $config_target_mak
7755     echo "TARGET_SYSTBL=$TARGET_SYSTBL" >> $config_target_mak
7756 fi
7757
7758 if supported_xen_target $target; then
7759     echo "CONFIG_XEN=y" >> $config_target_mak
7760     if test "$xen_pci_passthrough" = yes; then
7761         echo "CONFIG_XEN_PCI_PASSTHROUGH=y" >> "$config_target_mak"
7762     fi
7763 fi
7764 if supported_kvm_target $target; then
7765     echo "CONFIG_KVM=y" >> $config_target_mak
7766 fi
7767 if supported_hax_target $target; then
7768     echo "CONFIG_HAX=y" >> $config_target_mak
7769 fi
7770 if supported_hvf_target $target; then
7771     echo "CONFIG_HVF=y" >> $config_target_mak
7772 fi
7773 if supported_whpx_target $target; then
7774     echo "CONFIG_WHPX=y" >> $config_target_mak
7775 fi
7776 if test "$target_aligned_only" = "yes" ; then
7777   echo "TARGET_ALIGNED_ONLY=y" >> $config_target_mak
7778 fi
7779 if test "$target_bigendian" = "yes" ; then
7780   echo "TARGET_WORDS_BIGENDIAN=y" >> $config_target_mak
7781 fi
7782 if test "$target_softmmu" = "yes" ; then
7783   echo "CONFIG_SOFTMMU=y" >> $config_target_mak
7784   if test "$mttcg" = "yes" ; then
7785     echo "TARGET_SUPPORTS_MTTCG=y" >> $config_target_mak
7786   fi
7787 fi
7788 if test "$target_user_only" = "yes" ; then
7789   echo "CONFIG_USER_ONLY=y" >> $config_target_mak
7790   echo "CONFIG_QEMU_INTERP_PREFIX=\"$interp_prefix1\"" >> $config_target_mak
7791   symlink "../qemu-$target_name" "$target_dir/qemu-$target_name"
7792 else
7793   symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name"
7794 fi
7795 if test "$target_linux_user" = "yes" ; then
7796   echo "CONFIG_LINUX_USER=y" >> $config_target_mak
7797 fi
7798 list=""
7799 if test ! -z "$gdb_xml_files" ; then
7800   for x in $gdb_xml_files; do
7801     list="$list gdb-xml/$x"
7802   done
7803   echo "TARGET_XML_FILES=$list" >> $config_target_mak
7804 fi
7805
7806 if test "$target_user_only" = "yes" && test "$bflt" = "yes"; then
7807   echo "TARGET_HAS_BFLT=y" >> $config_target_mak
7808 fi
7809 if test "$target_bsd_user" = "yes" ; then
7810   echo "CONFIG_BSD_USER=y" >> $config_target_mak
7811 fi
7812
7813 done # for target in $targets
7814
7815 if [ "$fdt" = "git" ]; then
7816   subdirs="$subdirs dtc"
7817 fi
7818 if [ "$capstone" = "git" -o "$capstone" = "internal" ]; then
7819   subdirs="$subdirs capstone"
7820 fi
7821 echo "SUBDIRS=$subdirs" >> $config_host_mak
7822 if test -n "$LIBCAPSTONE"; then
7823   echo "LIBCAPSTONE=$LIBCAPSTONE" >> $config_host_mak
7824 fi
7825
7826 if test "$numa" = "yes"; then
7827   echo "CONFIG_NUMA=y" >> $config_host_mak
7828   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
7829 fi
7830
7831 if test "$ccache_cpp2" = "yes"; then
7832   echo "export CCACHE_CPP2=y" >> $config_host_mak
7833 fi
7834
7835 if test "$safe_stack" = "yes"; then
7836   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
7837 fi
7838
7839 # If we're using a separate build tree, set it up now.
7840 # DIRS are directories which we simply mkdir in the build tree;
7841 # LINKS are things to symlink back into the source tree
7842 # (these can be both files and directories).
7843 # Caution: do not add files or directories here using wildcards. This
7844 # will result in problems later if a new file matching the wildcard is
7845 # added to the source tree -- nothing will cause configure to be rerun
7846 # so the build tree will be missing the link back to the new file, and
7847 # tests might fail. Prefer to keep the relevant files in their own
7848 # directory and symlink the directory instead.
7849 # UNLINK is used to remove symlinks from older development versions
7850 # that might get into the way when doing "git update" without doing
7851 # a "make distclean" in between.
7852 DIRS="tests tests/tcg tests/tcg/lm32 tests/qapi-schema tests/qtest/libqos"
7853 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
7854 DIRS="$DIRS docs docs/interop fsdev scsi"
7855 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
7856 DIRS="$DIRS roms/seabios"
7857 DIRS="$DIRS contrib/plugins/"
7858 LINKS="Makefile"
7859 LINKS="$LINKS tests/tcg/lm32/Makefile"
7860 LINKS="$LINKS tests/tcg/Makefile.target"
7861 LINKS="$LINKS pc-bios/optionrom/Makefile"
7862 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
7863 LINKS="$LINKS roms/seabios/Makefile"
7864 LINKS="$LINKS pc-bios/qemu-icon.bmp"
7865 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
7866 LINKS="$LINKS tests/acceptance tests/data"
7867 LINKS="$LINKS tests/qemu-iotests/check"
7868 LINKS="$LINKS python"
7869 LINKS="$LINKS contrib/plugins/Makefile "
7870 UNLINK="pc-bios/keymaps"
7871 for bios_file in \
7872     $source_path/pc-bios/*.bin \
7873     $source_path/pc-bios/*.elf \
7874     $source_path/pc-bios/*.lid \
7875     $source_path/pc-bios/*.rom \
7876     $source_path/pc-bios/*.dtb \
7877     $source_path/pc-bios/*.img \
7878     $source_path/pc-bios/openbios-* \
7879     $source_path/pc-bios/u-boot.* \
7880     $source_path/pc-bios/edk2-*.fd.bz2 \
7881     $source_path/pc-bios/palcode-*
7882 do
7883     LINKS="$LINKS pc-bios/$(basename $bios_file)"
7884 done
7885 mkdir -p $DIRS
7886 for f in $LINKS ; do
7887     if [ -e "$source_path/$f" ]; then
7888         symlink "$source_path/$f" "$f"
7889     fi
7890 done
7891 for f in $UNLINK ; do
7892     if [ -L "$f" ]; then
7893         rm -f "$f"
7894     fi
7895 done
7896
7897 (for i in $cross_cc_vars; do
7898   export $i
7899 done
7900 export target_list source_path use_containers
7901 $source_path/tests/tcg/configure.sh)
7902
7903 # temporary config to build submodules
7904 for rom in seabios; do
7905     config_mak=roms/$rom/config.mak
7906     echo "# Automatically generated by configure - do not modify" > $config_mak
7907     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
7908     echo "AS=$as" >> $config_mak
7909     echo "CCAS=$ccas" >> $config_mak
7910     echo "CC=$cc" >> $config_mak
7911     echo "BCC=bcc" >> $config_mak
7912     echo "CPP=$cpp" >> $config_mak
7913     echo "OBJCOPY=objcopy" >> $config_mak
7914     echo "IASL=$iasl" >> $config_mak
7915     echo "LD=$ld" >> $config_mak
7916     echo "RANLIB=$ranlib" >> $config_mak
7917 done
7918
7919 # set up qemu-iotests in this build directory
7920 iotests_common_env="tests/qemu-iotests/common.env"
7921
7922 echo "# Automatically generated by configure - do not modify" > "$iotests_common_env"
7923 echo >> "$iotests_common_env"
7924 echo "export PYTHON='$python'" >> "$iotests_common_env"
7925
7926 if test "$skip_meson" = no; then
7927 cross="config-meson.cross.new"
7928 meson_quote() {
7929     echo "['$(echo $* | sed "s/ /','/g")']"
7930 }
7931
7932 echo "# Automatically generated by configure - do not modify" > $cross
7933 echo "[properties]" >> $cross
7934 test -z "$cxx" && echo "link_language = 'c'" >> $cross
7935 echo "[binaries]" >> $cross
7936 echo "c = $(meson_quote $cc)" >> $cross
7937 test -n "$cxx" && echo "cpp = $(meson_quote $cxx)" >> $cross
7938 echo "ar = $(meson_quote $ar)" >> $cross
7939 echo "nm = $(meson_quote $nm)" >> $cross
7940 echo "pkgconfig = $(meson_quote $pkg_config_exe)" >> $cross
7941 echo "ranlib = $(meson_quote $ranlib)" >> $cross
7942 if has $sdl2_config; then
7943   echo "sdl2-config = $(meson_quote $sdl2_config)" >> $cross
7944 fi
7945 echo "strip = $(meson_quote $strip)" >> $cross
7946 echo "windres = $(meson_quote $windres)" >> $cross
7947 if test -n "$cross_prefix"; then
7948     cross_arg="--cross-file config-meson.cross"
7949     # Hack: Meson expects an absolute path for the *build* machine
7950     # for the prefix, so add a slash in front of a Windows path that
7951     # includes a drive letter.
7952     #
7953     # See https://github.com/mesonbuild/meson/issues/7577.
7954     echo "[host_machine]" >> $cross
7955     if test "$mingw32" = "yes" ; then
7956         echo "system = 'windows'" >> $cross
7957         case $prefix in
7958             ?:*) pre_prefix=/ ;;
7959         esac
7960     fi
7961     if test "$linux" = "yes" ; then
7962         echo "system = 'linux'" >> $cross
7963     fi
7964     case "$ARCH" in
7965         i386|x86_64)
7966             echo "cpu_family = 'x86'" >> $cross
7967             ;;
7968         ppc64le)
7969             echo "cpu_family = 'ppc64'" >> $cross
7970             ;;
7971         *)
7972             echo "cpu_family = '$ARCH'" >> $cross
7973             ;;
7974     esac
7975     echo "cpu = '$cpu'" >> $cross
7976     if test "$bigendian" = "yes" ; then
7977         echo "endian = 'big'" >> $cross
7978     else
7979         echo "endian = 'little'" >> $cross
7980     fi
7981 else
7982     cross_arg="--native-file config-meson.cross"
7983 fi
7984 mv $cross config-meson.cross
7985
7986 rm -rf meson-private meson-info meson-logs
7987 NINJA=${ninja:-$PWD/ninjatool} $meson setup \
7988         --prefix "${pre_prefix}$prefix" \
7989         --libdir "${pre_prefix}$libdir" \
7990         --libexecdir "${pre_prefix}$libexecdir" \
7991         --bindir "${pre_prefix}$bindir" \
7992         --includedir "${pre_prefix}$includedir" \
7993         --datadir "${pre_prefix}$datadir" \
7994         --mandir "${pre_prefix}$mandir" \
7995         --sysconfdir "${pre_prefix}$sysconfdir" \
7996         --localstatedir "${pre_prefix}$local_statedir" \
7997         -Ddocdir="${pre_prefix}$docdir" \
7998         -Dqemu_suffix="$qemu_suffix" \
7999         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
8000         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
8001         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
8002         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
8003         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
8004         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
8005         -Dsdl=$sdl -Dsdl_image=$sdl_image \
8006         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
8007         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f\
8008         $cross_arg \
8009         "$PWD" "$source_path"
8010
8011 if test "$?" -ne 0 ; then
8012     error_exit "meson setup failed"
8013 fi
8014 touch ninjatool.stamp
8015 fi
8016
8017 if test -n "${deprecated_features}"; then
8018     echo "Warning, deprecated features enabled."
8019     echo "Please see docs/system/deprecated.rst"
8020     echo "  features: ${deprecated_features}"
8021 fi
8022
8023 # Save the configure command line for later reuse.
8024 cat <<EOD >config.status
8025 #!/bin/sh
8026 # Generated by configure.
8027 # Run this file to recreate the current configuration.
8028 # Compiler output produced by configure, useful for debugging
8029 # configure, is in config.log if it exists.
8030 EOD
8031
8032 preserve_env() {
8033     envname=$1
8034
8035     eval envval=\$$envname
8036
8037     if test -n "$envval"
8038     then
8039         echo "$envname='$envval'" >> config.status
8040         echo "export $envname" >> config.status
8041     else
8042         echo "unset $envname" >> config.status
8043     fi
8044 }
8045
8046 # Preserve various env variables that influence what
8047 # features/build target configure will detect
8048 preserve_env AR
8049 preserve_env AS
8050 preserve_env CC
8051 preserve_env CPP
8052 preserve_env CXX
8053 preserve_env INSTALL
8054 preserve_env LD
8055 preserve_env LD_LIBRARY_PATH
8056 preserve_env LIBTOOL
8057 preserve_env MAKE
8058 preserve_env NM
8059 preserve_env OBJCOPY
8060 preserve_env PATH
8061 preserve_env PKG_CONFIG
8062 preserve_env PKG_CONFIG_LIBDIR
8063 preserve_env PKG_CONFIG_PATH
8064 preserve_env PYTHON
8065 preserve_env SDL2_CONFIG
8066 preserve_env SMBD
8067 preserve_env STRIP
8068 preserve_env WINDRES
8069
8070 printf "exec" >>config.status
8071 for i in "$0" "$@"; do
8072   test "$i" = --skip-meson || printf " '%s'" "$i" >>config.status
8073 done
8074 echo ' "$@"' >>config.status
8075 chmod +x config.status
8076
8077 rm -r "$TMPDIR1"