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 # search for an executable in PATH
 196 path_of() {
 197     local_command="$1"
 198     local_ifs="$IFS"
 199     local_dir=""
 200
 201     # pathname has a dir component?
 202     if [ "${local_command#*/}" != "$local_command" ]; then
 203         if [ -x "$local_command" ] && [ ! -d "$local_command" ]; then
 204             echo "$local_command"
 205             return 0
 206         fi
 207     fi
 208     if [ -z "$local_command" ]; then
 209         return 1
 210     fi
 211
 212     IFS=:
 213     for local_dir in $PATH; do
 214         if [ -x "$local_dir/$local_command" ] && [ ! -d "$local_dir/$local_command" ]; then
 215             echo "$local_dir/$local_command"
 216             IFS="${local_ifs:-$(printf ' \t\n')}"
 217             return 0
 218         fi
 219     done
 220     # not found
 221     IFS="${local_ifs:-$(printf ' \t\n')}"
 222     return 1
 223 }
 224
 225 version_ge () {
 226     local_ver1=`echo $1 | tr . ' '`
 227     local_ver2=`echo $2 | tr . ' '`
 228     while true; do
 229         set x $local_ver1
 230         local_first=${2-0}
 231         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 232         shift ${2:+2}
 233         local_ver1=$*
 234         set x $local_ver2
 235         # the second argument finished, the first must be greater or equal
 236         test $# = 1 && return 0
 237         test $local_first -lt $2 && return 1
 238         test $local_first -gt $2 && return 0
 239         shift ${2:+2}
 240         local_ver2=$*
 241     done
 242 }
 243
 244 have_backend () {
 245     echo "$trace_backends" | grep "$1" >/dev/null
 246 }
 247
 248 glob() {
 249     eval test -z '"${1#'"$2"'}"'
 250 }
 251
 252 supported_hax_target() {
 253     test "$hax" = "yes" || return 1
 254     glob "$1" "*-softmmu" || return 1
 255     case "${1%-softmmu}" in
 256         i386|x86_64)
 257             return 0
 258         ;;
 259     esac
 260     return 1
 261 }
 262
 263 supported_kvm_target() {
 264     test "$kvm" = "yes" || return 1
 265     glob "$1" "*-softmmu" || return 1
 266     case "${1%-softmmu}:$cpu" in
 267         arm:arm | aarch64:aarch64 | \
 268         i386:i386 | i386:x86_64 | i386:x32 | \
 269         x86_64:i386 | x86_64:x86_64 | x86_64:x32 | \
 270         mips:mips | mipsel:mips | mips64:mips | mips64el:mips | \
 271         ppc:ppc | ppc64:ppc | ppc:ppc64 | ppc64:ppc64 | ppc64:ppc64le | \
 272         s390x:s390x)
 273             return 0
 274         ;;
 275     esac
 276     return 1
 277 }
 278
 279 supported_xen_target() {
 280     test "$xen" = "yes" || return 1
 281     glob "$1" "*-softmmu" || return 1
 282     # Only i386 and x86_64 provide the xenpv machine.
 283     case "${1%-softmmu}" in
 284         i386|x86_64)
 285             return 0
 286         ;;
 287     esac
 288     return 1
 289 }
 290
 291 supported_hvf_target() {
 292     test "$hvf" = "yes" || return 1
 293     glob "$1" "*-softmmu" || return 1
 294     case "${1%-softmmu}" in
 295         x86_64)
 296             return 0
 297         ;;
 298     esac
 299     return 1
 300 }
 301
 302 supported_whpx_target() {
 303     test "$whpx" = "yes" || return 1
 304     glob "$1" "*-softmmu" || return 1
 305     case "${1%-softmmu}" in
 306         i386|x86_64)
 307             return 0
 308         ;;
 309     esac
 310     return 1
 311 }
 312
 313 supported_target() {
 314     case "$1" in
 315         *-softmmu)
 316             ;;
 317         *-linux-user)
 318             if test "$linux" != "yes"; then
 319                 print_error "Target '$target' is only available on a Linux host"
 320                 return 1
 321             fi
 322             ;;
 323         *-bsd-user)
 324             if test "$bsd" != "yes"; then
 325                 print_error "Target '$target' is only available on a BSD host"
 326                 return 1
 327             fi
 328             ;;
 329         *)
 330             print_error "Invalid target name '$target'"
 331             return 1
 332             ;;
 333     esac
 334     test "$tcg" = "yes" && return 0
 335     supported_kvm_target "$1" && return 0
 336     supported_xen_target "$1" && return 0
 337     supported_hax_target "$1" && return 0
 338     supported_hvf_target "$1" && return 0
 339     supported_whpx_target "$1" && return 0
 340     print_error "TCG disabled, but hardware accelerator not available for '$target'"
 341     return 1
 342 }
 343
 344
 345 ld_has() {
 346     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 347 }
 348
 349 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 350 then
 351   error_exit "main directory cannot contain spaces nor colons"
 352 fi
 353
 354 # default parameters
 355 cpu=""
 356 iasl="iasl"
 357 interp_prefix="/usr/gnemul/qemu-%M"
 358 static="no"
 359 cross_prefix=""
 360 audio_drv_list=""
 361 block_drv_rw_whitelist=""
 362 block_drv_ro_whitelist=""
 363 host_cc="cc"
 364 libs_tools=""
 365 audio_win_int=""
 366 libs_qga=""
 367 debug_info="yes"
 368 stack_protector=""
 369 safe_stack=""
 370 use_containers="yes"
 371 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 372
 373 if test -e "$source_path/.git"
 374 then
 375     git_update=yes
 376     git_submodules="ui/keycodemapdb"
 377     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
 378     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
 379 else
 380     git_update=no
 381     git_submodules=""
 382
 383     if ! test -f "$source_path/ui/keycodemapdb/README"
 384     then
 385         echo
 386         echo "ERROR: missing file $source_path/ui/keycodemapdb/README"
 387         echo
 388         echo "This is not a GIT checkout but module content appears to"
 389         echo "be missing. Do not use 'git archive' or GitHub download links"
 390         echo "to acquire QEMU source archives. Non-GIT builds are only"
 391         echo "supported with source archives linked from:"
 392         echo
 393         echo "  https://www.qemu.org/download/#source"
 394         echo
 395         echo "Developers working with GIT can use scripts/archive-source.sh"
 396         echo "if they need to create valid source archives."
 397         echo
 398         exit 1
 399     fi
 400 fi
 401 git="git"
 402
 403 # Don't accept a target_list environment variable.
 404 unset target_list
 405 unset target_list_exclude
 406
 407 # Default value for a variable defining feature "foo".
 408 #  * foo="no"  feature will only be used if --enable-foo arg is given
 409 #  * foo=""    feature will be searched for, and if found, will be used
 410 #              unless --disable-foo is given
 411 #  * foo="yes" this value will only be set by --enable-foo flag.
 412 #              feature will searched for,
 413 #              if not found, configure exits with error
 414 #
 415 # Always add --enable-foo and --disable-foo command line args.
 416 # Distributions want to ensure that several features are compiled in, and it
 417 # is impossible without a --enable-foo that exits if a feature is not found.
 418
 419 brlapi=""
 420 curl=""
 421 curses=""
 422 docs=""
 423 fdt=""
 424 netmap="no"
 425 sdl="auto"
 426 sdl_image="auto"
 427 virtfs=""
 428 mpath=""
 429 vnc="enabled"
 430 sparse="no"
 431 vde=""
 432 vnc_sasl="auto"
 433 vnc_jpeg="auto"
 434 vnc_png="auto"
 435 xkbcommon="auto"
 436 xen=""
 437 xen_ctrl_version=""
 438 xen_pci_passthrough=""
 439 linux_aio=""
 440 linux_io_uring=""
 441 cap_ng=""
 442 attr=""
 443 libattr=""
 444 xfs=""
 445 tcg="yes"
 446 membarrier=""
 447 vhost_net=""
 448 vhost_crypto=""
 449 vhost_scsi=""
 450 vhost_vsock=""
 451 vhost_user=""
 452 vhost_user_fs=""
 453 kvm="no"
 454 hax="no"
 455 hvf="no"
 456 whpx="no"
 457 rdma=""
 458 pvrdma=""
 459 gprof="no"
 460 debug_tcg="no"
 461 debug="no"
 462 sanitizers="no"
 463 tsan="no"
 464 fortify_source=""
 465 strip_opt="yes"
 466 tcg_interpreter="no"
 467 bigendian="no"
 468 mingw32="no"
 469 gcov="no"
 470 EXESUF=""
 471 HOST_DSOSUF=".so"
 472 LDFLAGS_SHARED="-shared"
 473 modules="no"
 474 module_upgrades="no"
 475 prefix="/usr/local"
 476 firmwarepath="\${prefix}/share/qemu-firmware"
 477 confsuffix="/qemu"
 478 slirp=""
 479 oss_lib=""
 480 bsd="no"
 481 linux="no"
 482 solaris="no"
 483 profiler="no"
 484 cocoa="no"
 485 softmmu="yes"
 486 linux_user="no"
 487 bsd_user="no"
 488 blobs="yes"
 489 edk2_blobs="no"
 490 pkgversion=""
 491 pie=""
 492 qom_cast_debug="yes"
 493 trace_backends="log"
 494 trace_file="trace"
 495 spice=""
 496 rbd=""
 497 smartcard=""
 498 libusb=""
 499 usb_redir=""
 500 opengl=""
 501 opengl_dmabuf="no"
 502 cpuid_h="no"
 503 avx2_opt=""
 504 zlib="yes"
 505 capstone=""
 506 lzo=""
 507 snappy=""
 508 bzip2=""
 509 lzfse=""
 510 zstd=""
 511 guest_agent=""
 512 guest_agent_with_vss="no"
 513 guest_agent_ntddscsi="no"
 514 guest_agent_msi=""
 515 vss_win32_sdk=""
 516 win_sdk="no"
 517 want_tools=""
 518 libiscsi=""
 519 libnfs=""
 520 coroutine=""
 521 coroutine_pool=""
 522 debug_stack_usage="no"
 523 crypto_afalg="no"
 524 seccomp=""
 525 glusterfs=""
 526 glusterfs_xlator_opt="no"
 527 glusterfs_discard="no"
 528 glusterfs_fallocate="no"
 529 glusterfs_zerofill="no"
 530 glusterfs_ftruncate_has_stat="no"
 531 glusterfs_iocb_has_stat="no"
 532 gtk=""
 533 gtk_gl="no"
 534 tls_priority="NORMAL"
 535 gnutls=""
 536 nettle=""
 537 nettle_xts="no"
 538 gcrypt=""
 539 gcrypt_hmac="no"
 540 gcrypt_xts="no"
 541 qemu_private_xts="yes"
 542 auth_pam=""
 543 vte=""
 544 virglrenderer=""
 545 tpm=""
 546 libssh=""
 547 live_block_migration="yes"
 548 numa=""
 549 tcmalloc="no"
 550 jemalloc="no"
 551 replication="yes"
 552 bochs="yes"
 553 cloop="yes"
 554 dmg="yes"
 555 qcow1="yes"
 556 vdi="yes"
 557 vvfat="yes"
 558 qed="yes"
 559 parallels="yes"
 560 sheepdog="yes"
 561 libxml2=""
 562 debug_mutex="no"
 563 libpmem=""
 564 default_devices="yes"
 565 plugins="no"
 566 fuzzing="no"
 567 rng_none="no"
 568 secret_keyring=""
 569 libdaxctl=""
 570 meson=""
 571 ninja=""
 572 skip_meson=no
 573 gettext=""
 574
 575 bogus_os="no"
 576 malloc_trim=""
 577
 578 # parse CC options first
 579 for opt do
 580   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 581   case "$opt" in
 582   --cross-prefix=*) cross_prefix="$optarg"
 583   ;;
 584   --cc=*) CC="$optarg"
 585   ;;
 586   --cxx=*) CXX="$optarg"
 587   ;;
 588   --cpu=*) cpu="$optarg"
 589   ;;
 590   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 591                     QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 592   ;;
 593   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 594   ;;
 595   --extra-ldflags=*) QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 596                      EXTRA_LDFLAGS="$optarg"
 597   ;;
 598   --enable-debug-info) debug_info="yes"
 599   ;;
 600   --disable-debug-info) debug_info="no"
 601   ;;
 602   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 603   ;;
 604   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 605                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 606                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 607   ;;
 608   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 609                 cc_archs="$cc_archs $cc_arch"
 610                 eval "cross_cc_${cc_arch}=\$optarg"
 611                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 612   ;;
 613   esac
 614 done
 615 # OS specific
 616 # Using uname is really, really broken.  Once we have the right set of checks
 617 # we can eliminate its usage altogether.
 618
 619 # Preferred compiler:
 620 #  ${CC} (if set)
 621 #  ${cross_prefix}gcc (if cross-prefix specified)
 622 #  system compiler
 623 if test -z "${CC}${cross_prefix}"; then
 624   cc="$host_cc"
 625 else
 626   cc="${CC-${cross_prefix}gcc}"
 627 fi
 628
 629 if test -z "${CXX}${cross_prefix}"; then
 630   cxx="c++"
 631 else
 632   cxx="${CXX-${cross_prefix}g++}"
 633 fi
 634
 635 ar="${AR-${cross_prefix}ar}"
 636 as="${AS-${cross_prefix}as}"
 637 ccas="${CCAS-$cc}"
 638 cpp="${CPP-$cc -E}"
 639 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 640 ld="${LD-${cross_prefix}ld}"
 641 ranlib="${RANLIB-${cross_prefix}ranlib}"
 642 nm="${NM-${cross_prefix}nm}"
 643 strip="${STRIP-${cross_prefix}strip}"
 644 windres="${WINDRES-${cross_prefix}windres}"
 645 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 646 query_pkg_config() {
 647     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 648 }
 649 pkg_config=query_pkg_config
 650 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 651
 652 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 653 ARFLAGS="${ARFLAGS-rv}"
 654
 655 # default flags for all hosts
 656 # We use -fwrapv to tell the compiler that we require a C dialect where
 657 # left shift of signed integers is well defined and has the expected
 658 # 2s-complement style results. (Both clang and gcc agree that it
 659 # provides these semantics.)
 660 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
 661 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 662 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 663 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 664 QEMU_INCLUDES="-iquote . -iquote ${source_path} -iquote ${source_path}/accel/tcg -iquote ${source_path}/include"
 665 QEMU_INCLUDES="$QEMU_INCLUDES -iquote ${source_path}/disas/libvixl"
 666 CFLAGS="-std=gnu99 -Wall"
 667
 668
 669 # running configure in the source tree?
 670 # we know that's the case if configure is there.
 671 if test -f "./configure"; then
 672     pwd_is_source_path="y"
 673 else
 674     pwd_is_source_path="n"
 675 fi
 676
 677 check_define() {
 678 cat > $TMPC <<EOF
 679 #if !defined($1)
 680 #error $1 not defined
 681 #endif
 682 int main(void) { return 0; }
 683 EOF
 684   compile_object
 685 }
 686
 687 check_include() {
 688 cat > $TMPC <<EOF
 689 #include <$1>
 690 int main(void) { return 0; }
 691 EOF
 692   compile_object
 693 }
 694
 695 write_c_skeleton() {
 696     cat > $TMPC <<EOF
 697 int main(void) { return 0; }
 698 EOF
 699 }
 700
 701 write_c_fuzzer_skeleton() {
 702     cat > $TMPC <<EOF
 703 #include <stdint.h>
 704 #include <sys/types.h>
 705 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 706 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 707 EOF
 708 }
 709
 710 if check_define __linux__ ; then
 711   targetos="Linux"
 712 elif check_define _WIN32 ; then
 713   targetos='MINGW32'
 714 elif check_define __OpenBSD__ ; then
 715   targetos='OpenBSD'
 716 elif check_define __sun__ ; then
 717   targetos='SunOS'
 718 elif check_define __HAIKU__ ; then
 719   targetos='Haiku'
 720 elif check_define __FreeBSD__ ; then
 721   targetos='FreeBSD'
 722 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 723   targetos='GNU/kFreeBSD'
 724 elif check_define __DragonFly__ ; then
 725   targetos='DragonFly'
 726 elif check_define __NetBSD__; then
 727   targetos='NetBSD'
 728 elif check_define __APPLE__; then
 729   targetos='Darwin'
 730 else
 731   # This is a fatal error, but don't report it yet, because we
 732   # might be going to just print the --help text, or it might
 733   # be the result of a missing compiler.
 734   targetos='bogus'
 735   bogus_os='yes'
 736 fi
 737
 738 # Some host OSes need non-standard checks for which CPU to use.
 739 # Note that these checks are broken for cross-compilation: if you're
 740 # cross-compiling to one of these OSes then you'll need to specify
 741 # the correct CPU with the --cpu option.
 742 case $targetos in
 743 Darwin)
 744   # on Leopard most of the system is 32-bit, so we have to ask the kernel if we can
 745   # run 64-bit userspace code.
 746   # If the user didn't specify a CPU explicitly and the kernel says this is
 747   # 64 bit hw, then assume x86_64. Otherwise fall through to the usual detection code.
 748   if test -z "$cpu" && test "$(sysctl -n hw.optional.x86_64)" = "1"; then
 749     cpu="x86_64"
 750   fi
 751   ;;
 752 SunOS)
 753   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 754   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 755     cpu="x86_64"
 756   fi
 757 esac
 758
 759 if test ! -z "$cpu" ; then
 760   # command line argument
 761   :
 762 elif check_define __i386__ ; then
 763   cpu="i386"
 764 elif check_define __x86_64__ ; then
 765   if check_define __ILP32__ ; then
 766     cpu="x32"
 767   else
 768     cpu="x86_64"
 769   fi
 770 elif check_define __sparc__ ; then
 771   if check_define __arch64__ ; then
 772     cpu="sparc64"
 773   else
 774     cpu="sparc"
 775   fi
 776 elif check_define _ARCH_PPC ; then
 777   if check_define _ARCH_PPC64 ; then
 778     if check_define _LITTLE_ENDIAN ; then
 779       cpu="ppc64le"
 780     else
 781       cpu="ppc64"
 782     fi
 783   else
 784     cpu="ppc"
 785   fi
 786 elif check_define __mips__ ; then
 787   cpu="mips"
 788 elif check_define __s390__ ; then
 789   if check_define __s390x__ ; then
 790     cpu="s390x"
 791   else
 792     cpu="s390"
 793   fi
 794 elif check_define __riscv ; then
 795   if check_define _LP64 ; then
 796     cpu="riscv64"
 797   else
 798     cpu="riscv32"
 799   fi
 800 elif check_define __arm__ ; then
 801   cpu="arm"
 802 elif check_define __aarch64__ ; then
 803   cpu="aarch64"
 804 else
 805   cpu=$(uname -m)
 806 fi
 807
 808 ARCH=
 809 # Normalise host CPU name and set ARCH.
 810 # Note that this case should only have supported host CPUs, not guests.
 811 case "$cpu" in
 812   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 813   ;;
 814   ppc64le)
 815     ARCH="ppc64"
 816   ;;
 817   i386|i486|i586|i686|i86pc|BePC)
 818     cpu="i386"
 819   ;;
 820   x86_64|amd64)
 821     cpu="x86_64"
 822   ;;
 823   armv*b|armv*l|arm)
 824     cpu="arm"
 825   ;;
 826   aarch64)
 827     cpu="aarch64"
 828   ;;
 829   mips*)
 830     cpu="mips"
 831   ;;
 832   sparc|sun4[cdmuv])
 833     cpu="sparc"
 834   ;;
 835   *)
 836     # This will result in either an error or falling back to TCI later
 837     ARCH=unknown
 838   ;;
 839 esac
 840 if test -z "$ARCH"; then
 841   ARCH="$cpu"
 842 fi
 843
 844 # OS specific
 845
 846 # host *BSD for user mode
 847 HOST_VARIANT_DIR=""
 848
 849 case $targetos in
 850 MINGW32*)
 851   mingw32="yes"
 852   hax="yes"
 853   vhost_user="no"
 854   audio_possible_drivers="dsound sdl"
 855   if check_include dsound.h; then
 856     audio_drv_list="dsound"
 857   else
 858     audio_drv_list=""
 859   fi
 860   supported_os="yes"
 861   pie="no"
 862 ;;
 863 GNU/kFreeBSD)
 864   bsd="yes"
 865   audio_drv_list="oss try-sdl"
 866   audio_possible_drivers="oss sdl pa"
 867 ;;
 868 FreeBSD)
 869   bsd="yes"
 870   make="${MAKE-gmake}"
 871   audio_drv_list="oss try-sdl"
 872   audio_possible_drivers="oss sdl pa"
 873   # needed for kinfo_getvmmap(3) in libutil.h
 874   LIBS="-lutil $LIBS"
 875   netmap=""  # enable netmap autodetect
 876   HOST_VARIANT_DIR="freebsd"
 877 ;;
 878 DragonFly)
 879   bsd="yes"
 880   make="${MAKE-gmake}"
 881   audio_drv_list="oss try-sdl"
 882   audio_possible_drivers="oss sdl pa"
 883   HOST_VARIANT_DIR="dragonfly"
 884 ;;
 885 NetBSD)
 886   bsd="yes"
 887   hax="yes"
 888   make="${MAKE-gmake}"
 889   audio_drv_list="oss try-sdl"
 890   audio_possible_drivers="oss sdl"
 891   oss_lib="-lossaudio"
 892   HOST_VARIANT_DIR="netbsd"
 893 ;;
 894 OpenBSD)
 895   bsd="yes"
 896   make="${MAKE-gmake}"
 897   audio_drv_list="try-sdl"
 898   audio_possible_drivers="sdl"
 899   HOST_VARIANT_DIR="openbsd"
 900 ;;
 901 Darwin)
 902   bsd="yes"
 903   darwin="yes"
 904   hax="yes"
 905   hvf="yes"
 906   LDFLAGS_SHARED="-bundle -undefined dynamic_lookup"
 907   if [ "$cpu" = "x86_64" ] ; then
 908     QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
 909     QEMU_LDFLAGS="-arch x86_64 $QEMU_LDFLAGS"
 910   fi
 911   cocoa="yes"
 912   audio_drv_list="coreaudio try-sdl"
 913   audio_possible_drivers="coreaudio sdl"
 914   QEMU_LDFLAGS="-framework CoreFoundation -framework IOKit $QEMU_LDFLAGS"
 915   # Disable attempts to use ObjectiveC features in os/object.h since they
 916   # won't work when we're compiling with gcc as a C compiler.
 917   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 918   HOST_VARIANT_DIR="darwin"
 919 ;;
 920 SunOS)
 921   solaris="yes"
 922   make="${MAKE-gmake}"
 923   install="${INSTALL-ginstall}"
 924   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 925   if test -f /usr/include/sys/soundcard.h ; then
 926     audio_drv_list="oss try-sdl"
 927   fi
 928   audio_possible_drivers="oss sdl"
 929 # needed for CMSG_ macros in sys/socket.h
 930   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 931 # needed for TIOCWIN* defines in termios.h
 932   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 933   solarisnetlibs="-lsocket -lnsl -lresolv"
 934   LIBS="$solarisnetlibs $LIBS"
 935 ;;
 936 Haiku)
 937   haiku="yes"
 938   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -DBSD_SOURCE $QEMU_CFLAGS"
 939   LIBS="-lposix_error_mapper -lnetwork -lbsd $LIBS"
 940 ;;
 941 Linux)
 942   audio_drv_list="try-pa oss"
 943   audio_possible_drivers="oss alsa sdl pa"
 944   linux="yes"
 945   linux_user="yes"
 946   kvm="yes"
 947   QEMU_INCLUDES="-isystem ${source_path}/linux-headers -I$PWD/linux-headers $QEMU_INCLUDES"
 948   libudev="yes"
 949 ;;
 950 esac
 951
 952 if [ "$bsd" = "yes" ] ; then
 953   if [ "$darwin" != "yes" ] ; then
 954     bsd_user="yes"
 955   fi
 956 fi
 957
 958 : ${make=${MAKE-make}}
 959 : ${install=${INSTALL-install}}
 960 # We prefer python 3.x. A bare 'python' is traditionally
 961 # python 2.x, but some distros have it as python 3.x, so
 962 # we check that too
 963 python=
 964 explicit_python=no
 965 for binary in "${PYTHON-python3}" python
 966 do
 967     if has "$binary"
 968     then
 969         python=$(command -v "$binary")
 970         break
 971     fi
 972 done
 973
 974 sphinx_build=
 975 for binary in sphinx-build-3 sphinx-build
 976 do
 977     if has "$binary"
 978     then
 979         sphinx_build=$(command -v "$binary")
 980         break
 981     fi
 982 done
 983
 984 # Check for ancillary tools used in testing
 985 genisoimage=
 986 for binary in genisoimage mkisofs
 987 do
 988     if has $binary
 989     then
 990         genisoimage=$(command -v "$binary")
 991         break
 992     fi
 993 done
 994
 995 : ${smbd=${SMBD-/usr/sbin/smbd}}
 996
 997 # Default objcc to clang if available, otherwise use CC
 998 if has clang; then
 999   objcc=clang
1000 else
1001   objcc="$cc"
1002 fi
1003
1004 if test "$mingw32" = "yes" ; then
1005   EXESUF=".exe"
1006   HOST_DSOSUF=".dll"
1007   # MinGW needs -mthreads for TLS and macro _MT.
1008   CFLAGS="-mthreads $CFLAGS"
1009   LIBS="-lwinmm -lws2_32 $LIBS"
1010   write_c_skeleton;
1011   if compile_prog "" "-liberty" ; then
1012     LIBS="-liberty $LIBS"
1013   fi
1014   prefix="c:/Program Files/QEMU"
1015   confsuffix=""
1016   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
1017 fi
1018
1019 werror=""
1020
1021 for opt do
1022   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
1023   case "$opt" in
1024   --help|-h) show_help=yes
1025   ;;
1026   --version|-V) exec cat $source_path/VERSION
1027   ;;
1028   --prefix=*) prefix="$optarg"
1029   ;;
1030   --interp-prefix=*) interp_prefix="$optarg"
1031   ;;
1032   --cross-prefix=*)
1033   ;;
1034   --cc=*)
1035   ;;
1036   --host-cc=*) host_cc="$optarg"
1037   ;;
1038   --cxx=*)
1039   ;;
1040   --iasl=*) iasl="$optarg"
1041   ;;
1042   --objcc=*) objcc="$optarg"
1043   ;;
1044   --make=*) make="$optarg"
1045   ;;
1046   --install=*) install="$optarg"
1047   ;;
1048   --python=*) python="$optarg" ; explicit_python=yes
1049   ;;
1050   --sphinx-build=*) sphinx_build="$optarg"
1051   ;;
1052   --skip-meson) skip_meson=yes
1053   ;;
1054   --meson=*) meson="$optarg"
1055   ;;
1056   --ninja=*) ninja="$optarg"
1057   ;;
1058   --smbd=*) smbd="$optarg"
1059   ;;
1060   --extra-cflags=*)
1061   ;;
1062   --extra-cxxflags=*)
1063   ;;
1064   --extra-ldflags=*)
1065   ;;
1066   --enable-debug-info)
1067   ;;
1068   --disable-debug-info)
1069   ;;
1070   --cross-cc-*)
1071   ;;
1072   --enable-modules)
1073       modules="yes"
1074   ;;
1075   --disable-modules)
1076       modules="no"
1077   ;;
1078   --disable-module-upgrades) module_upgrades="no"
1079   ;;
1080   --enable-module-upgrades) module_upgrades="yes"
1081   ;;
1082   --cpu=*)
1083   ;;
1084   --target-list=*) target_list="$optarg"
1085                    if test "$target_list_exclude"; then
1086                        error_exit "Can't mix --target-list with --target-list-exclude"
1087                    fi
1088   ;;
1089   --target-list-exclude=*) target_list_exclude="$optarg"
1090                    if test "$target_list"; then
1091                        error_exit "Can't mix --target-list-exclude with --target-list"
1092                    fi
1093   ;;
1094   --enable-trace-backends=*) trace_backends="$optarg"
1095   ;;
1096   # XXX: backwards compatibility
1097   --enable-trace-backend=*) trace_backends="$optarg"
1098   ;;
1099   --with-trace-file=*) trace_file="$optarg"
1100   ;;
1101   --with-default-devices) default_devices="yes"
1102   ;;
1103   --without-default-devices) default_devices="no"
1104   ;;
1105   --enable-gprof) gprof="yes"
1106   ;;
1107   --enable-gcov) gcov="yes"
1108   ;;
1109   --static)
1110     static="yes"
1111     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
1112   ;;
1113   --mandir=*) mandir="$optarg"
1114   ;;
1115   --bindir=*) bindir="$optarg"
1116   ;;
1117   --libdir=*) libdir="$optarg"
1118   ;;
1119   --libexecdir=*) libexecdir="$optarg"
1120   ;;
1121   --includedir=*) includedir="$optarg"
1122   ;;
1123   --datadir=*) datadir="$optarg"
1124   ;;
1125   --with-confsuffix=*) confsuffix="$optarg"
1126   ;;
1127   --docdir=*) qemu_docdir="$optarg"
1128   ;;
1129   --sysconfdir=*) sysconfdir="$optarg"
1130   ;;
1131   --localstatedir=*) local_statedir="$optarg"
1132   ;;
1133   --firmwarepath=*) firmwarepath="$optarg"
1134   ;;
1135   --host=*|--build=*|\
1136   --disable-dependency-tracking|\
1137   --sbindir=*|--sharedstatedir=*|\
1138   --oldincludedir=*|--datarootdir=*|--infodir=*|--localedir=*|\
1139   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
1140     # These switches are silently ignored, for compatibility with
1141     # autoconf-generated configure scripts. This allows QEMU's
1142     # configure to be used by RPM and similar macros that set
1143     # lots of directory switches by default.
1144   ;;
1145   --disable-sdl) sdl="disabled"
1146   ;;
1147   --enable-sdl) sdl="enabled"
1148   ;;
1149   --disable-sdl-image) sdl_image="disabled"
1150   ;;
1151   --enable-sdl-image) sdl_image="enabled"
1152   ;;
1153   --disable-qom-cast-debug) qom_cast_debug="no"
1154   ;;
1155   --enable-qom-cast-debug) qom_cast_debug="yes"
1156   ;;
1157   --disable-virtfs) virtfs="no"
1158   ;;
1159   --enable-virtfs) virtfs="yes"
1160   ;;
1161   --disable-mpath) mpath="no"
1162   ;;
1163   --enable-mpath) mpath="yes"
1164   ;;
1165   --disable-vnc) vnc="disabled"
1166   ;;
1167   --enable-vnc) vnc="enabled"
1168   ;;
1169   --disable-gettext) gettext="false"
1170   ;;
1171   --enable-gettext) gettext="true"
1172   ;;
1173   --oss-lib=*) oss_lib="$optarg"
1174   ;;
1175   --audio-drv-list=*) audio_drv_list="$optarg"
1176   ;;
1177   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1178   ;;
1179   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1180   ;;
1181   --enable-debug-tcg) debug_tcg="yes"
1182   ;;
1183   --disable-debug-tcg) debug_tcg="no"
1184   ;;
1185   --enable-debug)
1186       # Enable debugging options that aren't excessively noisy
1187       debug_tcg="yes"
1188       debug_mutex="yes"
1189       debug="yes"
1190       strip_opt="no"
1191       fortify_source="no"
1192   ;;
1193   --enable-sanitizers) sanitizers="yes"
1194   ;;
1195   --disable-sanitizers) sanitizers="no"
1196   ;;
1197   --enable-tsan) tsan="yes"
1198   ;;
1199   --disable-tsan) tsan="no"
1200   ;;
1201   --enable-sparse) sparse="yes"
1202   ;;
1203   --disable-sparse) sparse="no"
1204   ;;
1205   --disable-strip) strip_opt="no"
1206   ;;
1207   --disable-vnc-sasl) vnc_sasl="disabled"
1208   ;;
1209   --enable-vnc-sasl) vnc_sasl="enabled"
1210   ;;
1211   --disable-vnc-jpeg) vnc_jpeg="disabled"
1212   ;;
1213   --enable-vnc-jpeg) vnc_jpeg="enabled"
1214   ;;
1215   --disable-vnc-png) vnc_png="disabled"
1216   ;;
1217   --enable-vnc-png) vnc_png="enabled"
1218   ;;
1219   --disable-slirp) slirp="no"
1220   ;;
1221   --enable-slirp=git) slirp="git"
1222   ;;
1223   --enable-slirp=system) slirp="system"
1224   ;;
1225   --disable-vde) vde="no"
1226   ;;
1227   --enable-vde) vde="yes"
1228   ;;
1229   --disable-netmap) netmap="no"
1230   ;;
1231   --enable-netmap) netmap="yes"
1232   ;;
1233   --disable-xen) xen="no"
1234   ;;
1235   --enable-xen) xen="yes"
1236   ;;
1237   --disable-xen-pci-passthrough) xen_pci_passthrough="no"
1238   ;;
1239   --enable-xen-pci-passthrough) xen_pci_passthrough="yes"
1240   ;;
1241   --disable-brlapi) brlapi="no"
1242   ;;
1243   --enable-brlapi) brlapi="yes"
1244   ;;
1245   --disable-kvm) kvm="no"
1246   ;;
1247   --enable-kvm) kvm="yes"
1248   ;;
1249   --disable-hax) hax="no"
1250   ;;
1251   --enable-hax) hax="yes"
1252   ;;
1253   --disable-hvf) hvf="no"
1254   ;;
1255   --enable-hvf) hvf="yes"
1256   ;;
1257   --disable-whpx) whpx="no"
1258   ;;
1259   --enable-whpx) whpx="yes"
1260   ;;
1261   --disable-tcg-interpreter) tcg_interpreter="no"
1262   ;;
1263   --enable-tcg-interpreter) tcg_interpreter="yes"
1264   ;;
1265   --disable-cap-ng)  cap_ng="no"
1266   ;;
1267   --enable-cap-ng) cap_ng="yes"
1268   ;;
1269   --disable-tcg) tcg="no"
1270   ;;
1271   --enable-tcg) tcg="yes"
1272   ;;
1273   --disable-malloc-trim) malloc_trim="no"
1274   ;;
1275   --enable-malloc-trim) malloc_trim="yes"
1276   ;;
1277   --disable-spice) spice="no"
1278   ;;
1279   --enable-spice) spice="yes"
1280   ;;
1281   --disable-libiscsi) libiscsi="no"
1282   ;;
1283   --enable-libiscsi) libiscsi="yes"
1284   ;;
1285   --disable-libnfs) libnfs="no"
1286   ;;
1287   --enable-libnfs) libnfs="yes"
1288   ;;
1289   --enable-profiler) profiler="yes"
1290   ;;
1291   --disable-cocoa) cocoa="no"
1292   ;;
1293   --enable-cocoa)
1294       cocoa="yes" ;
1295       audio_drv_list="coreaudio $(echo $audio_drv_list | sed s,coreaudio,,g)"
1296   ;;
1297   --disable-system) softmmu="no"
1298   ;;
1299   --enable-system) softmmu="yes"
1300   ;;
1301   --disable-user)
1302       linux_user="no" ;
1303       bsd_user="no" ;
1304   ;;
1305   --enable-user) ;;
1306   --disable-linux-user) linux_user="no"
1307   ;;
1308   --enable-linux-user) linux_user="yes"
1309   ;;
1310   --disable-bsd-user) bsd_user="no"
1311   ;;
1312   --enable-bsd-user) bsd_user="yes"
1313   ;;
1314   --enable-pie) pie="yes"
1315   ;;
1316   --disable-pie) pie="no"
1317   ;;
1318   --enable-werror) werror="yes"
1319   ;;
1320   --disable-werror) werror="no"
1321   ;;
1322   --enable-stack-protector) stack_protector="yes"
1323   ;;
1324   --disable-stack-protector) stack_protector="no"
1325   ;;
1326   --enable-safe-stack) safe_stack="yes"
1327   ;;
1328   --disable-safe-stack) safe_stack="no"
1329   ;;
1330   --disable-curses) curses="no"
1331   ;;
1332   --enable-curses) curses="yes"
1333   ;;
1334   --disable-iconv) iconv="no"
1335   ;;
1336   --enable-iconv) iconv="yes"
1337   ;;
1338   --disable-curl) curl="no"
1339   ;;
1340   --enable-curl) curl="yes"
1341   ;;
1342   --disable-fdt) fdt="no"
1343   ;;
1344   --enable-fdt) fdt="yes"
1345   ;;
1346   --disable-linux-aio) linux_aio="no"
1347   ;;
1348   --enable-linux-aio) linux_aio="yes"
1349   ;;
1350   --disable-linux-io-uring) linux_io_uring="no"
1351   ;;
1352   --enable-linux-io-uring) linux_io_uring="yes"
1353   ;;
1354   --disable-attr) attr="no"
1355   ;;
1356   --enable-attr) attr="yes"
1357   ;;
1358   --disable-membarrier) membarrier="no"
1359   ;;
1360   --enable-membarrier) membarrier="yes"
1361   ;;
1362   --disable-blobs) blobs="no"
1363   ;;
1364   --with-pkgversion=*) pkgversion="$optarg"
1365   ;;
1366   --with-coroutine=*) coroutine="$optarg"
1367   ;;
1368   --disable-coroutine-pool) coroutine_pool="no"
1369   ;;
1370   --enable-coroutine-pool) coroutine_pool="yes"
1371   ;;
1372   --enable-debug-stack-usage) debug_stack_usage="yes"
1373   ;;
1374   --enable-crypto-afalg) crypto_afalg="yes"
1375   ;;
1376   --disable-crypto-afalg) crypto_afalg="no"
1377   ;;
1378   --disable-docs) docs="no"
1379   ;;
1380   --enable-docs) docs="yes"
1381   ;;
1382   --disable-vhost-net) vhost_net="no"
1383   ;;
1384   --enable-vhost-net) vhost_net="yes"
1385   ;;
1386   --disable-vhost-crypto) vhost_crypto="no"
1387   ;;
1388   --enable-vhost-crypto) vhost_crypto="yes"
1389   ;;
1390   --disable-vhost-scsi) vhost_scsi="no"
1391   ;;
1392   --enable-vhost-scsi) vhost_scsi="yes"
1393   ;;
1394   --disable-vhost-vsock) vhost_vsock="no"
1395   ;;
1396   --enable-vhost-vsock) vhost_vsock="yes"
1397   ;;
1398   --disable-vhost-user-fs) vhost_user_fs="no"
1399   ;;
1400   --enable-vhost-user-fs) vhost_user_fs="yes"
1401   ;;
1402   --disable-opengl) opengl="no"
1403   ;;
1404   --enable-opengl) opengl="yes"
1405   ;;
1406   --disable-rbd) rbd="no"
1407   ;;
1408   --enable-rbd) rbd="yes"
1409   ;;
1410   --disable-xfsctl) xfs="no"
1411   ;;
1412   --enable-xfsctl) xfs="yes"
1413   ;;
1414   --disable-smartcard) smartcard="no"
1415   ;;
1416   --enable-smartcard) smartcard="yes"
1417   ;;
1418   --disable-libusb) libusb="no"
1419   ;;
1420   --enable-libusb) libusb="yes"
1421   ;;
1422   --disable-usb-redir) usb_redir="no"
1423   ;;
1424   --enable-usb-redir) usb_redir="yes"
1425   ;;
1426   --disable-zlib-test) zlib="no"
1427   ;;
1428   --disable-lzo) lzo="no"
1429   ;;
1430   --enable-lzo) lzo="yes"
1431   ;;
1432   --disable-snappy) snappy="no"
1433   ;;
1434   --enable-snappy) snappy="yes"
1435   ;;
1436   --disable-bzip2) bzip2="no"
1437   ;;
1438   --enable-bzip2) bzip2="yes"
1439   ;;
1440   --enable-lzfse) lzfse="yes"
1441   ;;
1442   --disable-lzfse) lzfse="no"
1443   ;;
1444   --disable-zstd) zstd="no"
1445   ;;
1446   --enable-zstd) zstd="yes"
1447   ;;
1448   --enable-guest-agent) guest_agent="yes"
1449   ;;
1450   --disable-guest-agent) guest_agent="no"
1451   ;;
1452   --enable-guest-agent-msi) guest_agent_msi="yes"
1453   ;;
1454   --disable-guest-agent-msi) guest_agent_msi="no"
1455   ;;
1456   --with-vss-sdk) vss_win32_sdk=""
1457   ;;
1458   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1459   ;;
1460   --without-vss-sdk) vss_win32_sdk="no"
1461   ;;
1462   --with-win-sdk) win_sdk=""
1463   ;;
1464   --with-win-sdk=*) win_sdk="$optarg"
1465   ;;
1466   --without-win-sdk) win_sdk="no"
1467   ;;
1468   --enable-tools) want_tools="yes"
1469   ;;
1470   --disable-tools) want_tools="no"
1471   ;;
1472   --enable-seccomp) seccomp="yes"
1473   ;;
1474   --disable-seccomp) seccomp="no"
1475   ;;
1476   --disable-glusterfs) glusterfs="no"
1477   ;;
1478   --disable-avx2) avx2_opt="no"
1479   ;;
1480   --enable-avx2) avx2_opt="yes"
1481   ;;
1482   --disable-avx512f) avx512f_opt="no"
1483   ;;
1484   --enable-avx512f) avx512f_opt="yes"
1485   ;;
1486
1487   --enable-glusterfs) glusterfs="yes"
1488   ;;
1489   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1490       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1491   ;;
1492   --enable-vhdx|--disable-vhdx)
1493       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1494   ;;
1495   --enable-uuid|--disable-uuid)
1496       echo "$0: $opt is obsolete, UUID support is always built" >&2
1497   ;;
1498   --disable-gtk) gtk="no"
1499   ;;
1500   --enable-gtk) gtk="yes"
1501   ;;
1502   --tls-priority=*) tls_priority="$optarg"
1503   ;;
1504   --disable-gnutls) gnutls="no"
1505   ;;
1506   --enable-gnutls) gnutls="yes"
1507   ;;
1508   --disable-nettle) nettle="no"
1509   ;;
1510   --enable-nettle) nettle="yes"
1511   ;;
1512   --disable-gcrypt) gcrypt="no"
1513   ;;
1514   --enable-gcrypt) gcrypt="yes"
1515   ;;
1516   --disable-auth-pam) auth_pam="no"
1517   ;;
1518   --enable-auth-pam) auth_pam="yes"
1519   ;;
1520   --enable-rdma) rdma="yes"
1521   ;;
1522   --disable-rdma) rdma="no"
1523   ;;
1524   --enable-pvrdma) pvrdma="yes"
1525   ;;
1526   --disable-pvrdma) pvrdma="no"
1527   ;;
1528   --disable-vte) vte="no"
1529   ;;
1530   --enable-vte) vte="yes"
1531   ;;
1532   --disable-virglrenderer) virglrenderer="no"
1533   ;;
1534   --enable-virglrenderer) virglrenderer="yes"
1535   ;;
1536   --disable-tpm) tpm="no"
1537   ;;
1538   --enable-tpm) tpm="yes"
1539   ;;
1540   --disable-libssh) libssh="no"
1541   ;;
1542   --enable-libssh) libssh="yes"
1543   ;;
1544   --disable-live-block-migration) live_block_migration="no"
1545   ;;
1546   --enable-live-block-migration) live_block_migration="yes"
1547   ;;
1548   --disable-numa) numa="no"
1549   ;;
1550   --enable-numa) numa="yes"
1551   ;;
1552   --disable-libxml2) libxml2="no"
1553   ;;
1554   --enable-libxml2) libxml2="yes"
1555   ;;
1556   --disable-tcmalloc) tcmalloc="no"
1557   ;;
1558   --enable-tcmalloc) tcmalloc="yes"
1559   ;;
1560   --disable-jemalloc) jemalloc="no"
1561   ;;
1562   --enable-jemalloc) jemalloc="yes"
1563   ;;
1564   --disable-replication) replication="no"
1565   ;;
1566   --enable-replication) replication="yes"
1567   ;;
1568   --disable-bochs) bochs="no"
1569   ;;
1570   --enable-bochs) bochs="yes"
1571   ;;
1572   --disable-cloop) cloop="no"
1573   ;;
1574   --enable-cloop) cloop="yes"
1575   ;;
1576   --disable-dmg) dmg="no"
1577   ;;
1578   --enable-dmg) dmg="yes"
1579   ;;
1580   --disable-qcow1) qcow1="no"
1581   ;;
1582   --enable-qcow1) qcow1="yes"
1583   ;;
1584   --disable-vdi) vdi="no"
1585   ;;
1586   --enable-vdi) vdi="yes"
1587   ;;
1588   --disable-vvfat) vvfat="no"
1589   ;;
1590   --enable-vvfat) vvfat="yes"
1591   ;;
1592   --disable-qed) qed="no"
1593   ;;
1594   --enable-qed) qed="yes"
1595   ;;
1596   --disable-parallels) parallels="no"
1597   ;;
1598   --enable-parallels) parallels="yes"
1599   ;;
1600   --disable-sheepdog) sheepdog="no"
1601   ;;
1602   --enable-sheepdog) sheepdog="yes"
1603   ;;
1604   --disable-vhost-user) vhost_user="no"
1605   ;;
1606   --enable-vhost-user) vhost_user="yes"
1607   ;;
1608   --disable-vhost-vdpa) vhost_vdpa="no"
1609   ;;
1610   --enable-vhost-vdpa) vhost_vdpa="yes"
1611   ;;
1612   --disable-vhost-kernel) vhost_kernel="no"
1613   ;;
1614   --enable-vhost-kernel) vhost_kernel="yes"
1615   ;;
1616   --disable-capstone) capstone="no"
1617   ;;
1618   --enable-capstone) capstone="yes"
1619   ;;
1620   --enable-capstone=git) capstone="git"
1621   ;;
1622   --enable-capstone=system) capstone="system"
1623   ;;
1624   --with-git=*) git="$optarg"
1625   ;;
1626   --enable-git-update) git_update=yes
1627   ;;
1628   --disable-git-update) git_update=no
1629   ;;
1630   --enable-debug-mutex) debug_mutex=yes
1631   ;;
1632   --disable-debug-mutex) debug_mutex=no
1633   ;;
1634   --enable-libpmem) libpmem=yes
1635   ;;
1636   --disable-libpmem) libpmem=no
1637   ;;
1638   --enable-xkbcommon) xkbcommon="enabled"
1639   ;;
1640   --disable-xkbcommon) xkbcommon="disabled"
1641   ;;
1642   --enable-plugins) plugins="yes"
1643   ;;
1644   --disable-plugins) plugins="no"
1645   ;;
1646   --enable-containers) use_containers="yes"
1647   ;;
1648   --disable-containers) use_containers="no"
1649   ;;
1650   --enable-fuzzing) fuzzing=yes
1651   ;;
1652   --disable-fuzzing) fuzzing=no
1653   ;;
1654   --gdb=*) gdb_bin="$optarg"
1655   ;;
1656   --enable-rng-none) rng_none=yes
1657   ;;
1658   --disable-rng-none) rng_none=no
1659   ;;
1660   --enable-keyring) secret_keyring="yes"
1661   ;;
1662   --disable-keyring) secret_keyring="no"
1663   ;;
1664   --enable-libdaxctl) libdaxctl=yes
1665   ;;
1666   --disable-libdaxctl) libdaxctl=no
1667   ;;
1668   *)
1669       echo "ERROR: unknown option $opt"
1670       echo "Try '$0 --help' for more information"
1671       exit 1
1672   ;;
1673   esac
1674 done
1675
1676 libdir="${libdir:-$prefix/lib}"
1677 libexecdir="${libexecdir:-$prefix/libexec}"
1678 includedir="${includedir:-$prefix/include}"
1679
1680 if test "$mingw32" = "yes" ; then
1681     mandir="$prefix"
1682     datadir="$prefix"
1683     qemu_docdir="$prefix"
1684     bindir="$prefix"
1685     sysconfdir="$prefix"
1686     local_statedir=
1687 else
1688     mandir="${mandir:-$prefix/share/man}"
1689     datadir="${datadir:-$prefix/share}"
1690     qemu_docdir="${qemu_docdir:-$prefix/share/doc/qemu}"
1691     bindir="${bindir:-$prefix/bin}"
1692     sysconfdir="${sysconfdir:-$prefix/etc}"
1693     local_statedir="${local_statedir:-$prefix/var}"
1694 fi
1695
1696 case "$cpu" in
1697     ppc)
1698            CPU_CFLAGS="-m32"
1699            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1700            ;;
1701     ppc64)
1702            CPU_CFLAGS="-m64"
1703            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1704            ;;
1705     sparc)
1706            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1707            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1708            ;;
1709     sparc64)
1710            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1711            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1712            ;;
1713     s390)
1714            CPU_CFLAGS="-m31"
1715            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1716            ;;
1717     s390x)
1718            CPU_CFLAGS="-m64"
1719            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1720            ;;
1721     i386)
1722            CPU_CFLAGS="-m32"
1723            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1724            ;;
1725     x86_64)
1726            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1727            # If we truly care, we should simply detect this case at
1728            # runtime and generate the fallback to serial emulation.
1729            CPU_CFLAGS="-m64 -mcx16"
1730            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1731            ;;
1732     x32)
1733            CPU_CFLAGS="-mx32"
1734            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1735            ;;
1736     # No special flags required for other host CPUs
1737 esac
1738
1739 eval "cross_cc_${cpu}=\$host_cc"
1740 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1741 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1742
1743 # For user-mode emulation the host arch has to be one we explicitly
1744 # support, even if we're using TCI.
1745 if [ "$ARCH" = "unknown" ]; then
1746   bsd_user="no"
1747   linux_user="no"
1748 fi
1749
1750 if [ "$bsd_user" = "no" -a "$linux_user" = "no" -a "$softmmu" = "no" ] ; then
1751   tcg="no"
1752 fi
1753
1754 default_target_list=""
1755
1756 mak_wilds=""
1757
1758 if [ "$softmmu" = "yes" ]; then
1759     mak_wilds="${mak_wilds} $source_path/default-configs/*-softmmu.mak"
1760 fi
1761 if [ "$linux_user" = "yes" ]; then
1762     mak_wilds="${mak_wilds} $source_path/default-configs/*-linux-user.mak"
1763 fi
1764 if [ "$bsd_user" = "yes" ]; then
1765     mak_wilds="${mak_wilds} $source_path/default-configs/*-bsd-user.mak"
1766 fi
1767
1768 if test -z "$target_list_exclude"; then
1769     for config in $mak_wilds; do
1770         default_target_list="${default_target_list} $(basename "$config" .mak)"
1771     done
1772 else
1773     exclude_list=$(echo "$target_list_exclude" | sed -e 's/,/ /g')
1774     for config in $mak_wilds; do
1775         target="$(basename "$config" .mak)"
1776         exclude="no"
1777         for excl in $exclude_list; do
1778             if test "$excl" = "$target"; then
1779                 exclude="yes"
1780                 break;
1781             fi
1782         done
1783         if test "$exclude" = "no"; then
1784             default_target_list="${default_target_list} $target"
1785         fi
1786     done
1787 fi
1788
1789 # Enumerate public trace backends for --help output
1790 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1791
1792 if test x"$show_help" = x"yes" ; then
1793 cat << EOF
1794
1795 Usage: configure [options]
1796 Options: [defaults in brackets after descriptions]
1797
1798 Standard options:
1799   --help                   print this message
1800   --prefix=PREFIX          install in PREFIX [$prefix]
1801   --interp-prefix=PREFIX   where to find shared libraries, etc.
1802                            use %M for cpu name [$interp_prefix]
1803   --target-list=LIST       set target list (default: build everything)
1804 $(echo Available targets: $default_target_list | \
1805   fold -s -w 53 | sed -e 's/^/                           /')
1806   --target-list-exclude=LIST exclude a set of targets from the default target-list
1807
1808 Advanced options (experts only):
1809   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
1810   --cc=CC                  use C compiler CC [$cc]
1811   --iasl=IASL              use ACPI compiler IASL [$iasl]
1812   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1813                            build time
1814   --cxx=CXX                use C++ compiler CXX [$cxx]
1815   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1816   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1817   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1818   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1819   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1820   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1821   --make=MAKE              use specified make [$make]
1822   --install=INSTALL        use specified install [$install]
1823   --python=PYTHON          use specified python [$python]
1824   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1825   --meson=MESON            use specified meson [$meson]
1826   --ninja=NINJA            use specified ninja [$ninja]
1827   --smbd=SMBD              use specified smbd [$smbd]
1828   --with-git=GIT           use specified git [$git]
1829   --static                 enable static build [$static]
1830   --mandir=PATH            install man pages in PATH
1831   --datadir=PATH           install firmware in PATH$confsuffix
1832   --docdir=PATH            install documentation in PATH$confsuffix
1833   --bindir=PATH            install binaries in PATH
1834   --libdir=PATH            install libraries in PATH
1835   --libexecdir=PATH        install helper binaries in PATH
1836   --sysconfdir=PATH        install config in PATH$confsuffix
1837   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1838   --firmwarepath=PATH      search PATH for firmware files
1839   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1840   --with-confsuffix=SUFFIX suffix for QEMU data inside datadir/libdir/sysconfdir [$confsuffix]
1841   --with-pkgversion=VERS   use specified string as sub-version of the package
1842   --enable-debug           enable common debug build options
1843   --enable-sanitizers      enable default sanitizers
1844   --enable-tsan            enable thread sanitizer
1845   --disable-strip          disable stripping binaries
1846   --disable-werror         disable compilation abort on warning
1847   --disable-stack-protector disable compiler-provided stack protection
1848   --audio-drv-list=LIST    set audio drivers list:
1849                            Available drivers: $audio_possible_drivers
1850   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1851   --block-drv-rw-whitelist=L
1852                            set block driver read-write whitelist
1853                            (affects only QEMU, not qemu-img)
1854   --block-drv-ro-whitelist=L
1855                            set block driver read-only whitelist
1856                            (affects only QEMU, not qemu-img)
1857   --enable-trace-backends=B Set trace backend
1858                            Available backends: $trace_backend_list
1859   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1860                            Default:trace-<pid>
1861   --disable-slirp          disable SLIRP userspace network connectivity
1862   --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)
1863   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1864   --oss-lib                path to OSS library
1865   --cpu=CPU                Build for host CPU [$cpu]
1866   --with-coroutine=BACKEND coroutine backend. Supported options:
1867                            ucontext, sigaltstack, windows
1868   --enable-gcov            enable test coverage analysis with gcov
1869   --disable-blobs          disable installing provided firmware blobs
1870   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1871   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1872   --tls-priority           default TLS protocol/cipher priority string
1873   --enable-gprof           QEMU profiling with gprof
1874   --enable-profiler        profiler support
1875   --enable-debug-stack-usage
1876                            track the maximum stack usage of stacks created by qemu_alloc_stack
1877   --enable-plugins
1878                            enable plugins via shared library loading
1879   --disable-containers     don't use containers for cross-building
1880   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1881
1882 Optional features, enabled with --enable-FEATURE and
1883 disabled with --disable-FEATURE, default is enabled if available:
1884
1885   system          all system emulation targets
1886   user            supported user emulation targets
1887   linux-user      all linux usermode emulation targets
1888   bsd-user        all BSD usermode emulation targets
1889   docs            build documentation
1890   guest-agent     build the QEMU Guest Agent
1891   guest-agent-msi build guest agent Windows MSI installation package
1892   pie             Position Independent Executables
1893   modules         modules support (non-Windows)
1894   module-upgrades try to load modules from alternate paths for upgrades
1895   debug-tcg       TCG debugging (default is disabled)
1896   debug-info      debugging information
1897   sparse          sparse checker
1898   safe-stack      SafeStack Stack Smash Protection. Depends on
1899                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1900
1901   gnutls          GNUTLS cryptography support
1902   nettle          nettle cryptography support
1903   gcrypt          libgcrypt cryptography support
1904   auth-pam        PAM access control
1905   sdl             SDL UI
1906   sdl-image       SDL Image support for icons
1907   gtk             gtk UI
1908   vte             vte support for the gtk UI
1909   curses          curses UI
1910   iconv           font glyph conversion support
1911   vnc             VNC UI support
1912   vnc-sasl        SASL encryption for VNC server
1913   vnc-jpeg        JPEG lossy compression for VNC server
1914   vnc-png         PNG compression for VNC server
1915   cocoa           Cocoa UI (Mac OS X only)
1916   virtfs          VirtFS
1917   mpath           Multipath persistent reservation passthrough
1918   xen             xen backend driver support
1919   xen-pci-passthrough    PCI passthrough support for Xen
1920   brlapi          BrlAPI (Braile)
1921   curl            curl connectivity
1922   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1923   fdt             fdt device tree
1924   kvm             KVM acceleration support
1925   hax             HAX acceleration support
1926   hvf             Hypervisor.framework acceleration support
1927   whpx            Windows Hypervisor Platform acceleration support
1928   rdma            Enable RDMA-based migration
1929   pvrdma          Enable PVRDMA support
1930   vde             support for vde network
1931   netmap          support for netmap network
1932   linux-aio       Linux AIO support
1933   linux-io-uring  Linux io_uring support
1934   cap-ng          libcap-ng support
1935   attr            attr and xattr support
1936   vhost-net       vhost-net kernel acceleration support
1937   vhost-vsock     virtio sockets device support
1938   vhost-scsi      vhost-scsi kernel target support
1939   vhost-crypto    vhost-user-crypto backend support
1940   vhost-kernel    vhost kernel backend support
1941   vhost-user      vhost-user backend support
1942   vhost-vdpa      vhost-vdpa kernel backend support
1943   spice           spice
1944   rbd             rados block device (rbd)
1945   libiscsi        iscsi support
1946   libnfs          nfs support
1947   smartcard       smartcard support (libcacard)
1948   libusb          libusb (for usb passthrough)
1949   live-block-migration   Block migration in the main migration stream
1950   usb-redir       usb network redirection support
1951   lzo             support of lzo compression library
1952   snappy          support of snappy compression library
1953   bzip2           support of bzip2 compression library
1954                   (for reading bzip2-compressed dmg images)
1955   lzfse           support of lzfse compression library
1956                   (for reading lzfse-compressed dmg images)
1957   zstd            support for zstd compression library
1958                   (for migration compression and qcow2 cluster compression)
1959   seccomp         seccomp support
1960   coroutine-pool  coroutine freelist (better performance)
1961   glusterfs       GlusterFS backend
1962   tpm             TPM support
1963   libssh          ssh block device support
1964   numa            libnuma support
1965   libxml2         for Parallels image format
1966   tcmalloc        tcmalloc support
1967   jemalloc        jemalloc support
1968   avx2            AVX2 optimization support
1969   avx512f         AVX512F optimization support
1970   replication     replication support
1971   opengl          opengl support
1972   virglrenderer   virgl rendering support
1973   xfsctl          xfsctl support
1974   qom-cast-debug  cast debugging support
1975   tools           build qemu-io, qemu-nbd and qemu-img tools
1976   bochs           bochs image format support
1977   cloop           cloop image format support
1978   dmg             dmg image format support
1979   qcow1           qcow v1 image format support
1980   vdi             vdi image format support
1981   vvfat           vvfat image format support
1982   qed             qed image format support
1983   parallels       parallels image format support
1984   sheepdog        sheepdog block driver support
1985   crypto-afalg    Linux AF_ALG crypto backend driver
1986   capstone        capstone disassembler support
1987   debug-mutex     mutex debugging support
1988   libpmem         libpmem support
1989   xkbcommon       xkbcommon support
1990   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1991   libdaxctl       libdaxctl support
1992
1993 NOTE: The object files are built at the place where configure is launched
1994 EOF
1995 exit 0
1996 fi
1997
1998 # Remove old dependency files to make sure that they get properly regenerated
1999 rm -f */config-devices.mak.d
2000
2001 if test -z "$python"
2002 then
2003     error_exit "Python not found. Use --python=/path/to/python"
2004 fi
2005
2006 # Note that if the Python conditional here evaluates True we will exit
2007 # with status 1 which is a shell 'false' value.
2008 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,5))'; then
2009   error_exit "Cannot use '$python', Python >= 3.5 is required." \
2010       "Use --python=/path/to/python to specify a supported Python."
2011 fi
2012
2013 # Preserve python version since some functionality is dependent on it
2014 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)
2015
2016 # Suppress writing compiled files
2017 python="$python -B"
2018
2019 if test -z "$meson"; then
2020     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.55.0; then
2021         meson=meson
2022     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
2023         meson=git
2024     elif test -e "${source_path}/meson/meson.py" ; then
2025         meson=internal
2026     else
2027         if test "$explicit_python" = yes; then
2028             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
2029         else
2030             error_exit "Meson not found.  Use --meson=/path/to/meson"
2031         fi
2032     fi
2033 else
2034     # Meson uses its own Python interpreter to invoke other Python scripts,
2035     # but the user wants to use the one they specified with --python.
2036     #
2037     # We do not want to override the distro Python interpreter (and sometimes
2038     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
2039     # just require --meson=git|internal together with --python.
2040     if test "$explicit_python" = yes; then
2041         case "$meson" in
2042             git | internal) ;;
2043             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
2044         esac
2045     fi
2046 fi
2047
2048 if test "$meson" = git; then
2049     git_submodules="${git_submodules} meson"
2050 fi
2051 if test "$git_update" = yes; then
2052     (cd "${source_path}" && GIT="$git" "./scripts/git-submodule.sh" update "$git_submodules")
2053 fi
2054
2055 case "$meson" in
2056     git | internal)
2057         if ! $python -c 'import pkg_resources' > /dev/null 2>&1; then
2058             error_exit "Python setuptools not found"
2059         fi
2060         meson="$python ${source_path}/meson/meson.py"
2061         ;;
2062     *) meson=$(command -v meson) ;;
2063 esac
2064
2065 # Probe for ninja (used for compdb)
2066
2067 if test -z "$ninja"; then
2068     for c in ninja ninja-build samu; do
2069         if has $c; then
2070             ninja=$(command -v "$c")
2071             break
2072         fi
2073     done
2074 fi
2075
2076 # Check that the C compiler works. Doing this here before testing
2077 # the host CPU ensures that we had a valid CC to autodetect the
2078 # $cpu var (and we should bail right here if that's not the case).
2079 # It also allows the help message to be printed without a CC.
2080 write_c_skeleton;
2081 if compile_object ; then
2082   : C compiler works ok
2083 else
2084     error_exit "\"$cc\" either does not exist or does not work"
2085 fi
2086 if ! compile_prog ; then
2087     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
2088 fi
2089
2090 # Now we have handled --enable-tcg-interpreter and know we're not just
2091 # printing the help message, bail out if the host CPU isn't supported.
2092 if test "$ARCH" = "unknown"; then
2093     if test "$tcg_interpreter" = "yes" ; then
2094         echo "Unsupported CPU = $cpu, will use TCG with TCI (experimental)"
2095     else
2096         error_exit "Unsupported CPU = $cpu, try --enable-tcg-interpreter"
2097     fi
2098 fi
2099
2100 # Consult white-list to determine whether to enable werror
2101 # by default.  Only enable by default for git builds
2102 if test -z "$werror" ; then
2103     if test -e "$source_path/.git" && \
2104         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
2105         werror="yes"
2106     else
2107         werror="no"
2108     fi
2109 fi
2110
2111 if test "$bogus_os" = "yes"; then
2112     # Now that we know that we're not printing the help and that
2113     # the compiler works (so the results of the check_defines we used
2114     # to identify the OS are reliable), if we didn't recognize the
2115     # host OS we should stop now.
2116     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
2117 fi
2118
2119 # Check whether the compiler matches our minimum requirements:
2120 cat > $TMPC << EOF
2121 #if defined(__clang_major__) && defined(__clang_minor__)
2122 # ifdef __apple_build_version__
2123 #  if __clang_major__ < 5 || (__clang_major__ == 5 && __clang_minor__ < 1)
2124 #   error You need at least XCode Clang v5.1 to compile QEMU
2125 #  endif
2126 # else
2127 #  if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 4)
2128 #   error You need at least Clang v3.4 to compile QEMU
2129 #  endif
2130 # endif
2131 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
2132 # if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
2133 #  error You need at least GCC v4.8 to compile QEMU
2134 # endif
2135 #else
2136 # error You either need GCC or Clang to compiler QEMU
2137 #endif
2138 int main (void) { return 0; }
2139 EOF
2140 if ! compile_prog "" "" ; then
2141     error_exit "You need at least GCC v4.8 or Clang v3.4 (or XCode Clang v5.1)"
2142 fi
2143
2144 # Accumulate -Wfoo and -Wno-bar separately.
2145 # We will list all of the enable flags first, and the disable flags second.
2146 # Note that we do not add -Werror, because that would enable it for all
2147 # configure tests. If a configure test failed due to -Werror this would
2148 # just silently disable some features, so it's too error prone.
2149
2150 warn_flags=
2151 add_to warn_flags -Wold-style-declaration
2152 add_to warn_flags -Wold-style-definition
2153 add_to warn_flags -Wtype-limits
2154 add_to warn_flags -Wformat-security
2155 add_to warn_flags -Wformat-y2k
2156 add_to warn_flags -Winit-self
2157 add_to warn_flags -Wignored-qualifiers
2158 add_to warn_flags -Wempty-body
2159 add_to warn_flags -Wnested-externs
2160 add_to warn_flags -Wendif-labels
2161 add_to warn_flags -Wexpansion-to-defined
2162
2163 nowarn_flags=
2164 add_to nowarn_flags -Wno-initializer-overrides
2165 add_to nowarn_flags -Wno-missing-include-dirs
2166 add_to nowarn_flags -Wno-shift-negative-value
2167 add_to nowarn_flags -Wno-string-plus-int
2168 add_to nowarn_flags -Wno-typedef-redefinition
2169 add_to nowarn_flags -Wno-tautological-type-limit-compare
2170 add_to nowarn_flags -Wno-psabi
2171
2172 gcc_flags="$warn_flags $nowarn_flags"
2173
2174 cc_has_warning_flag() {
2175     write_c_skeleton;
2176
2177     # Use the positive sense of the flag when testing for -Wno-wombat
2178     # support (gcc will happily accept the -Wno- form of unknown
2179     # warning options).
2180     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2181     compile_prog "-Werror $optflag" ""
2182 }
2183
2184 for flag in $gcc_flags; do
2185     if cc_has_warning_flag $flag ; then
2186         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2187     fi
2188 done
2189
2190 if test "$stack_protector" != "no"; then
2191   cat > $TMPC << EOF
2192 int main(int argc, char *argv[])
2193 {
2194     char arr[64], *p = arr, *c = argv[0];
2195     while (*c) {
2196         *p++ = *c++;
2197     }
2198     return 0;
2199 }
2200 EOF
2201   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2202   sp_on=0
2203   for flag in $gcc_flags; do
2204     # We need to check both a compile and a link, since some compiler
2205     # setups fail only on a .c->.o compile and some only at link time
2206     if compile_object "-Werror $flag" &&
2207        compile_prog "-Werror $flag" ""; then
2208       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2209       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2210       sp_on=1
2211       break
2212     fi
2213   done
2214   if test "$stack_protector" = yes; then
2215     if test $sp_on = 0; then
2216       error_exit "Stack protector not supported"
2217     fi
2218   fi
2219 fi
2220
2221 # Disable -Wmissing-braces on older compilers that warn even for
2222 # the "universal" C zero initializer {0}.
2223 cat > $TMPC << EOF
2224 struct {
2225   int a[2];
2226 } x = {0};
2227 EOF
2228 if compile_object "-Werror" "" ; then
2229   :
2230 else
2231   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2232 fi
2233
2234 # Our module code doesn't support Windows
2235 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2236   error_exit "Modules are not available for Windows"
2237 fi
2238
2239 # module_upgrades is only reasonable if modules are enabled
2240 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2241   error_exit "Can't enable module-upgrades as Modules are not enabled"
2242 fi
2243
2244 # Static linking is not possible with modules or PIE
2245 if test "$static" = "yes" ; then
2246   if test "$modules" = "yes" ; then
2247     error_exit "static and modules are mutually incompatible"
2248   fi
2249 fi
2250
2251 # Unconditional check for compiler __thread support
2252   cat > $TMPC << EOF
2253 static __thread int tls_var;
2254 int main(void) { return tls_var; }
2255 EOF
2256
2257 if ! compile_prog "-Werror" "" ; then
2258     error_exit "Your compiler does not support the __thread specifier for " \
2259         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2260 fi
2261
2262 cat > $TMPC << EOF
2263
2264 #ifdef __linux__
2265 #  define THREAD __thread
2266 #else
2267 #  define THREAD
2268 #endif
2269 static THREAD int tls_var;
2270 int main(void) { return tls_var; }
2271 EOF
2272
2273 # Check we support --no-pie first; we will need this for building ROMs.
2274 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2275   CFLAGS_NOPIE="-fno-pie"
2276   LDFLAGS_NOPIE="-no-pie"
2277 fi
2278
2279 if test "$static" = "yes"; then
2280   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
2281     CFLAGS="-fPIE -DPIE $CFLAGS"
2282     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
2283     pie="yes"
2284   elif test "$pie" = "yes"; then
2285     error_exit "-static-pie not available due to missing toolchain support"
2286   else
2287     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
2288     pie="no"
2289   fi
2290 elif test "$pie" = "no"; then
2291   CFLAGS="$CFLAGS_NOPIE $CFLAGS"
2292   LDFLAGS="$LDFLAGS_NOPIE $LDFLAGS"
2293 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2294   CFLAGS="-fPIE -DPIE $CFLAGS"
2295   LDFLAGS="-pie $LDFLAGS"
2296   pie="yes"
2297 elif test "$pie" = "yes"; then
2298   error_exit "PIE not available due to missing toolchain support"
2299 else
2300   echo "Disabling PIE due to missing toolchain support"
2301   pie="no"
2302 fi
2303
2304 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2305 # The combination is known as "full relro", because .got.plt is read-only too.
2306 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2307   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2308 fi
2309
2310 ##########################################
2311 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2312 # use i686 as default anyway, but for those that don't, an explicit
2313 # specification is necessary
2314
2315 if test "$cpu" = "i386"; then
2316   cat > $TMPC << EOF
2317 static int sfaa(int *ptr)
2318 {
2319   return __sync_fetch_and_and(ptr, 0);
2320 }
2321
2322 int main(void)
2323 {
2324   int val = 42;
2325   val = __sync_val_compare_and_swap(&val, 0, 1);
2326   sfaa(&val);
2327   return val;
2328 }
2329 EOF
2330   if ! compile_prog "" "" ; then
2331     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2332   fi
2333 fi
2334
2335 #########################################
2336 # Solaris specific configure tool chain decisions
2337
2338 if test "$solaris" = "yes" ; then
2339   if has $install; then
2340     :
2341   else
2342     error_exit "Solaris install program not found. Use --install=/usr/ucb/install or" \
2343         "install fileutils from www.blastwave.org using pkg-get -i fileutils" \
2344         "to get ginstall which is used by default (which lives in /opt/csw/bin)"
2345   fi
2346   if test "$(path_of $install)" = "/usr/sbin/install" ; then
2347     error_exit "Solaris /usr/sbin/install is not an appropriate install program." \
2348         "try ginstall from the GNU fileutils available from www.blastwave.org" \
2349         "using pkg-get -i fileutils, or use --install=/usr/ucb/install"
2350   fi
2351   if has ar; then
2352     :
2353   else
2354     if test -f /usr/ccs/bin/ar ; then
2355       error_exit "No path includes ar" \
2356           "Add /usr/ccs/bin to your path and rerun configure"
2357     fi
2358     error_exit "No path includes ar"
2359   fi
2360 fi
2361
2362 if test -z "${target_list+xxx}" ; then
2363     for target in $default_target_list; do
2364         supported_target $target 2>/dev/null && \
2365             target_list="$target_list $target"
2366     done
2367     target_list="${target_list# }"
2368 else
2369     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2370     for target in $target_list; do
2371         # Check that we recognised the target name; this allows a more
2372         # friendly error message than if we let it fall through.
2373         case " $default_target_list " in
2374             *" $target "*)
2375                 ;;
2376             *)
2377                 error_exit "Unknown target name '$target'"
2378                 ;;
2379         esac
2380         supported_target $target || exit 1
2381     done
2382 fi
2383
2384 # see if system emulation was really requested
2385 case " $target_list " in
2386   *"-softmmu "*) softmmu=yes
2387   ;;
2388   *) softmmu=no
2389   ;;
2390 esac
2391
2392 for target in $target_list; do
2393   case "$target" in
2394     arm-softmmu | aarch64-softmmu | i386-softmmu | x86_64-softmmu)
2395       edk2_blobs="yes"
2396       ;;
2397   esac
2398 done
2399 # The EDK2 binaries are compressed with bzip2
2400 if test "$edk2_blobs" = "yes" && ! has bzip2; then
2401   error_exit "The bzip2 program is required for building QEMU"
2402 fi
2403
2404 feature_not_found() {
2405   feature=$1
2406   remedy=$2
2407
2408   error_exit "User requested feature $feature" \
2409       "configure was not able to find it." \
2410       "$remedy"
2411 }
2412
2413 # ---
2414 # big/little endian test
2415 cat > $TMPC << EOF
2416 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2417 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2418 extern int foo(short *, short *);
2419 int main(int argc, char *argv[]) {
2420     return foo(big_endian, little_endian);
2421 }
2422 EOF
2423
2424 if compile_object ; then
2425     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2426         bigendian="yes"
2427     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2428         bigendian="no"
2429     else
2430         echo big/little test failed
2431     fi
2432 else
2433     echo big/little test failed
2434 fi
2435
2436 ##########################################
2437 # system tools
2438 if test -z "$want_tools"; then
2439     if test "$softmmu" = "no"; then
2440         want_tools=no
2441     else
2442         want_tools=yes
2443     fi
2444 fi
2445
2446 ##########################################
2447 # cocoa implies not SDL or GTK
2448 # (the cocoa UI code currently assumes it is always the active UI
2449 # and doesn't interact well with other UI frontend code)
2450 if test "$cocoa" = "yes"; then
2451     if test "$sdl" = "yes"; then
2452         error_exit "Cocoa and SDL UIs cannot both be enabled at once"
2453     fi
2454     if test "$gtk" = "yes"; then
2455         error_exit "Cocoa and GTK UIs cannot both be enabled at once"
2456     fi
2457     gtk=no
2458     sdl=disabled
2459 fi
2460
2461 # Some versions of Mac OS X incorrectly define SIZE_MAX
2462 cat > $TMPC << EOF
2463 #include <stdint.h>
2464 #include <stdio.h>
2465 int main(int argc, char *argv[]) {
2466     return printf("%zu", SIZE_MAX);
2467 }
2468 EOF
2469 have_broken_size_max=no
2470 if ! compile_object -Werror ; then
2471     have_broken_size_max=yes
2472 fi
2473
2474 ##########################################
2475 # L2TPV3 probe
2476
2477 cat > $TMPC <<EOF
2478 #include <sys/socket.h>
2479 #include <linux/ip.h>
2480 int main(void) { return sizeof(struct mmsghdr); }
2481 EOF
2482 if compile_prog "" "" ; then
2483   l2tpv3=yes
2484 else
2485   l2tpv3=no
2486 fi
2487
2488 if check_include "pty.h" ; then
2489   pty_h=yes
2490 else
2491   pty_h=no
2492 fi
2493
2494 cat > $TMPC <<EOF
2495 #include <sys/mman.h>
2496 int main(int argc, char *argv[]) {
2497     return mlockall(MCL_FUTURE);
2498 }
2499 EOF
2500 if compile_prog "" "" ; then
2501   have_mlockall=yes
2502 else
2503   have_mlockall=no
2504 fi
2505
2506 #########################################
2507 # vhost interdependencies and host support
2508
2509 # vhost backends
2510 test "$vhost_user" = "" && vhost_user=yes
2511 if test "$vhost_user" = "yes" && test "$mingw32" = "yes"; then
2512   error_exit "vhost-user isn't available on win32"
2513 fi
2514 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2515 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2516   error_exit "vhost-vdpa is only available on Linux"
2517 fi
2518 test "$vhost_kernel" = "" && vhost_kernel=$linux
2519 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2520   error_exit "vhost-kernel is only available on Linux"
2521 fi
2522
2523 # vhost-kernel devices
2524 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2525 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2526   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2527 fi
2528 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2529 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2530   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2531 fi
2532
2533 # vhost-user backends
2534 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2535 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2536   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2537 fi
2538 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2539 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2540   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2541 fi
2542 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2543 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2544   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2545 fi
2546 #vhost-vdpa backends
2547 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2548 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2549   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2550 fi
2551
2552 # OR the vhost-kernel and vhost-user values for simplicity
2553 if test "$vhost_net" = ""; then
2554   test "$vhost_net_user" = "yes" && vhost_net=yes
2555   test "$vhost_kernel" = "yes" && vhost_net=yes
2556 fi
2557
2558 ##########################################
2559 # MinGW / Mingw-w64 localtime_r/gmtime_r check
2560
2561 if test "$mingw32" = "yes"; then
2562     # Some versions of MinGW / Mingw-w64 lack localtime_r
2563     # and gmtime_r entirely.
2564     #
2565     # Some versions of Mingw-w64 define a macro for
2566     # localtime_r/gmtime_r.
2567     #
2568     # Some versions of Mingw-w64 will define functions
2569     # for localtime_r/gmtime_r, but only if you have
2570     # _POSIX_THREAD_SAFE_FUNCTIONS defined. For fun
2571     # though, unistd.h and pthread.h both define
2572     # that for you.
2573     #
2574     # So this #undef localtime_r and #include <unistd.h>
2575     # are not in fact redundant.
2576 cat > $TMPC << EOF
2577 #include <unistd.h>
2578 #include <time.h>
2579 #undef localtime_r
2580 int main(void) { localtime_r(NULL, NULL); return 0; }
2581 EOF
2582     if compile_prog "" "" ; then
2583         localtime_r="yes"
2584     else
2585         localtime_r="no"
2586     fi
2587 fi
2588
2589 ##########################################
2590 # pkg-config probe
2591
2592 if ! has "$pkg_config_exe"; then
2593   error_exit "pkg-config binary '$pkg_config_exe' not found"
2594 fi
2595
2596 ##########################################
2597 # NPTL probe
2598
2599 if test "$linux_user" = "yes"; then
2600   cat > $TMPC <<EOF
2601 #include <sched.h>
2602 #include <linux/futex.h>
2603 int main(void) {
2604 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2605 #error bork
2606 #endif
2607   return 0;
2608 }
2609 EOF
2610   if ! compile_object ; then
2611     feature_not_found "nptl" "Install glibc and linux kernel headers."
2612   fi
2613 fi
2614
2615 ##########################################
2616 # lzo check
2617
2618 if test "$lzo" != "no" ; then
2619     cat > $TMPC << EOF
2620 #include <lzo/lzo1x.h>
2621 int main(void) { lzo_version(); return 0; }
2622 EOF
2623     if compile_prog "" "-llzo2" ; then
2624         lzo_libs="-llzo2"
2625         lzo="yes"
2626     else
2627         if test "$lzo" = "yes"; then
2628             feature_not_found "liblzo2" "Install liblzo2 devel"
2629         fi
2630         lzo="no"
2631     fi
2632 fi
2633
2634 ##########################################
2635 # snappy check
2636
2637 if test "$snappy" != "no" ; then
2638     cat > $TMPC << EOF
2639 #include <snappy-c.h>
2640 int main(void) { snappy_max_compressed_length(4096); return 0; }
2641 EOF
2642     if compile_prog "" "-lsnappy" ; then
2643         snappy_libs='-lsnappy'
2644         snappy="yes"
2645     else
2646         if test "$snappy" = "yes"; then
2647             feature_not_found "libsnappy" "Install libsnappy devel"
2648         fi
2649         snappy="no"
2650     fi
2651 fi
2652
2653 ##########################################
2654 # bzip2 check
2655
2656 if test "$bzip2" != "no" ; then
2657     cat > $TMPC << EOF
2658 #include <bzlib.h>
2659 int main(void) { BZ2_bzlibVersion(); return 0; }
2660 EOF
2661     if compile_prog "" "-lbz2" ; then
2662         bzip2="yes"
2663     else
2664         if test "$bzip2" = "yes"; then
2665             feature_not_found "libbzip2" "Install libbzip2 devel"
2666         fi
2667         bzip2="no"
2668     fi
2669 fi
2670
2671 ##########################################
2672 # lzfse check
2673
2674 if test "$lzfse" != "no" ; then
2675     cat > $TMPC << EOF
2676 #include <lzfse.h>
2677 int main(void) { lzfse_decode_scratch_size(); return 0; }
2678 EOF
2679     if compile_prog "" "-llzfse" ; then
2680         lzfse="yes"
2681     else
2682         if test "$lzfse" = "yes"; then
2683             feature_not_found "lzfse" "Install lzfse devel"
2684         fi
2685         lzfse="no"
2686     fi
2687 fi
2688
2689 ##########################################
2690 # zstd check
2691
2692 if test "$zstd" != "no" ; then
2693     libzstd_minver="1.4.0"
2694     if $pkg_config --atleast-version=$libzstd_minver libzstd ; then
2695         zstd_cflags="$($pkg_config --cflags libzstd)"
2696         zstd_libs="$($pkg_config --libs libzstd)"
2697         zstd="yes"
2698     else
2699         if test "$zstd" = "yes" ; then
2700             feature_not_found "libzstd" "Install libzstd devel"
2701         fi
2702         zstd="no"
2703     fi
2704 fi
2705
2706 ##########################################
2707 # libseccomp check
2708
2709 if test "$seccomp" != "no" ; then
2710     libseccomp_minver="2.3.0"
2711     if $pkg_config --atleast-version=$libseccomp_minver libseccomp ; then
2712         seccomp_cflags="$($pkg_config --cflags libseccomp)"
2713         seccomp_libs="$($pkg_config --libs libseccomp)"
2714         seccomp="yes"
2715     else
2716         if test "$seccomp" = "yes" ; then
2717             feature_not_found "libseccomp" \
2718                  "Install libseccomp devel >= $libseccomp_minver"
2719         fi
2720         seccomp="no"
2721     fi
2722 fi
2723 ##########################################
2724 # xen probe
2725
2726 if test "$xen" != "no" ; then
2727   # Check whether Xen library path is specified via --extra-ldflags to avoid
2728   # overriding this setting with pkg-config output. If not, try pkg-config
2729   # to obtain all needed flags.
2730
2731   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2732      $pkg_config --exists xencontrol ; then
2733     xen_ctrl_version="$(printf '%d%02d%02d' \
2734       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2735     xen=yes
2736     xen_pc="xencontrol xenstore xenguest xenforeignmemory xengnttab"
2737     xen_pc="$xen_pc xenevtchn xendevicemodel"
2738     if $pkg_config --exists xentoolcore; then
2739       xen_pc="$xen_pc xentoolcore"
2740     fi
2741     QEMU_CFLAGS="$QEMU_CFLAGS $($pkg_config --cflags $xen_pc)"
2742     xen_cflags="$($pkg_config --cflags $xen_pc)"
2743     xen_libs="$($pkg_config --libs $xen_pc)"
2744   else
2745
2746     xen_libs="-lxenstore -lxenctrl -lxenguest"
2747     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2748
2749     # First we test whether Xen headers and libraries are available.
2750     # If no, we are done and there is no Xen support.
2751     # If yes, more tests are run to detect the Xen version.
2752
2753     # Xen (any)
2754     cat > $TMPC <<EOF
2755 #include <xenctrl.h>
2756 int main(void) {
2757   return 0;
2758 }
2759 EOF
2760     if ! compile_prog "" "$xen_libs" ; then
2761       # Xen not found
2762       if test "$xen" = "yes" ; then
2763         feature_not_found "xen" "Install xen devel"
2764       fi
2765       xen=no
2766
2767     # Xen unstable
2768     elif
2769         cat > $TMPC <<EOF &&
2770 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2771 #define __XEN_TOOLS__
2772 #include <xendevicemodel.h>
2773 #include <xenforeignmemory.h>
2774 int main(void) {
2775   xendevicemodel_handle *xd;
2776   xenforeignmemory_handle *xfmem;
2777
2778   xd = xendevicemodel_open(0, 0);
2779   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2780
2781   xfmem = xenforeignmemory_open(0, 0);
2782   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2783
2784   return 0;
2785 }
2786 EOF
2787         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2788       then
2789       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2790       xen_ctrl_version=41100
2791       xen=yes
2792     elif
2793         cat > $TMPC <<EOF &&
2794 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2795 #include <xenforeignmemory.h>
2796 #include <xentoolcore.h>
2797 int main(void) {
2798   xenforeignmemory_handle *xfmem;
2799
2800   xfmem = xenforeignmemory_open(0, 0);
2801   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2802   xentoolcore_restrict_all(0);
2803
2804   return 0;
2805 }
2806 EOF
2807         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2808       then
2809       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2810       xen_ctrl_version=41000
2811       xen=yes
2812     elif
2813         cat > $TMPC <<EOF &&
2814 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2815 #define __XEN_TOOLS__
2816 #include <xendevicemodel.h>
2817 int main(void) {
2818   xendevicemodel_handle *xd;
2819
2820   xd = xendevicemodel_open(0, 0);
2821   xendevicemodel_close(xd);
2822
2823   return 0;
2824 }
2825 EOF
2826         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2827       then
2828       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2829       xen_ctrl_version=40900
2830       xen=yes
2831     elif
2832         cat > $TMPC <<EOF &&
2833 /*
2834  * If we have stable libs the we don't want the libxc compat
2835  * layers, regardless of what CFLAGS we may have been given.
2836  *
2837  * Also, check if xengnttab_grant_copy_segment_t is defined and
2838  * grant copy operation is implemented.
2839  */
2840 #undef XC_WANT_COMPAT_EVTCHN_API
2841 #undef XC_WANT_COMPAT_GNTTAB_API
2842 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2843 #include <xenctrl.h>
2844 #include <xenstore.h>
2845 #include <xenevtchn.h>
2846 #include <xengnttab.h>
2847 #include <xenforeignmemory.h>
2848 #include <stdint.h>
2849 #include <xen/hvm/hvm_info_table.h>
2850 #if !defined(HVM_MAX_VCPUS)
2851 # error HVM_MAX_VCPUS not defined
2852 #endif
2853 int main(void) {
2854   xc_interface *xc = NULL;
2855   xenforeignmemory_handle *xfmem;
2856   xenevtchn_handle *xe;
2857   xengnttab_handle *xg;
2858   xengnttab_grant_copy_segment_t* seg = NULL;
2859
2860   xs_daemon_open();
2861
2862   xc = xc_interface_open(0, 0, 0);
2863   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2864   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2865   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2866   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2867
2868   xfmem = xenforeignmemory_open(0, 0);
2869   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2870
2871   xe = xenevtchn_open(0, 0);
2872   xenevtchn_fd(xe);
2873
2874   xg = xengnttab_open(0, 0);
2875   xengnttab_grant_copy(xg, 0, seg);
2876
2877   return 0;
2878 }
2879 EOF
2880         compile_prog "" "$xen_libs $xen_stable_libs"
2881       then
2882       xen_ctrl_version=40800
2883       xen=yes
2884     elif
2885         cat > $TMPC <<EOF &&
2886 /*
2887  * If we have stable libs the we don't want the libxc compat
2888  * layers, regardless of what CFLAGS we may have been given.
2889  */
2890 #undef XC_WANT_COMPAT_EVTCHN_API
2891 #undef XC_WANT_COMPAT_GNTTAB_API
2892 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2893 #include <xenctrl.h>
2894 #include <xenstore.h>
2895 #include <xenevtchn.h>
2896 #include <xengnttab.h>
2897 #include <xenforeignmemory.h>
2898 #include <stdint.h>
2899 #include <xen/hvm/hvm_info_table.h>
2900 #if !defined(HVM_MAX_VCPUS)
2901 # error HVM_MAX_VCPUS not defined
2902 #endif
2903 int main(void) {
2904   xc_interface *xc = NULL;
2905   xenforeignmemory_handle *xfmem;
2906   xenevtchn_handle *xe;
2907   xengnttab_handle *xg;
2908
2909   xs_daemon_open();
2910
2911   xc = xc_interface_open(0, 0, 0);
2912   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2913   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2914   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2915   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2916
2917   xfmem = xenforeignmemory_open(0, 0);
2918   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2919
2920   xe = xenevtchn_open(0, 0);
2921   xenevtchn_fd(xe);
2922
2923   xg = xengnttab_open(0, 0);
2924   xengnttab_map_grant_ref(xg, 0, 0, 0);
2925
2926   return 0;
2927 }
2928 EOF
2929         compile_prog "" "$xen_libs $xen_stable_libs"
2930       then
2931       xen_ctrl_version=40701
2932       xen=yes
2933
2934     # Xen 4.6
2935     elif
2936         cat > $TMPC <<EOF &&
2937 #include <xenctrl.h>
2938 #include <xenstore.h>
2939 #include <stdint.h>
2940 #include <xen/hvm/hvm_info_table.h>
2941 #if !defined(HVM_MAX_VCPUS)
2942 # error HVM_MAX_VCPUS not defined
2943 #endif
2944 int main(void) {
2945   xc_interface *xc;
2946   xs_daemon_open();
2947   xc = xc_interface_open(0, 0, 0);
2948   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2949   xc_gnttab_open(NULL, 0);
2950   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2951   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2952   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2953   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2954   return 0;
2955 }
2956 EOF
2957         compile_prog "" "$xen_libs"
2958       then
2959       xen_ctrl_version=40600
2960       xen=yes
2961
2962     # Xen 4.5
2963     elif
2964         cat > $TMPC <<EOF &&
2965 #include <xenctrl.h>
2966 #include <xenstore.h>
2967 #include <stdint.h>
2968 #include <xen/hvm/hvm_info_table.h>
2969 #if !defined(HVM_MAX_VCPUS)
2970 # error HVM_MAX_VCPUS not defined
2971 #endif
2972 int main(void) {
2973   xc_interface *xc;
2974   xs_daemon_open();
2975   xc = xc_interface_open(0, 0, 0);
2976   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2977   xc_gnttab_open(NULL, 0);
2978   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2979   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2980   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2981   return 0;
2982 }
2983 EOF
2984         compile_prog "" "$xen_libs"
2985       then
2986       xen_ctrl_version=40500
2987       xen=yes
2988
2989     elif
2990         cat > $TMPC <<EOF &&
2991 #include <xenctrl.h>
2992 #include <xenstore.h>
2993 #include <stdint.h>
2994 #include <xen/hvm/hvm_info_table.h>
2995 #if !defined(HVM_MAX_VCPUS)
2996 # error HVM_MAX_VCPUS not defined
2997 #endif
2998 int main(void) {
2999   xc_interface *xc;
3000   xs_daemon_open();
3001   xc = xc_interface_open(0, 0, 0);
3002   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
3003   xc_gnttab_open(NULL, 0);
3004   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
3005   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
3006   return 0;
3007 }
3008 EOF
3009         compile_prog "" "$xen_libs"
3010       then
3011       xen_ctrl_version=40200
3012       xen=yes
3013
3014     else
3015       if test "$xen" = "yes" ; then
3016         feature_not_found "xen (unsupported version)" \
3017                           "Install a supported xen (xen 4.2 or newer)"
3018       fi
3019       xen=no
3020     fi
3021
3022     if test "$xen" = yes; then
3023       if test $xen_ctrl_version -ge 40701  ; then
3024         xen_libs="$xen_libs $xen_stable_libs "
3025       fi
3026     fi
3027   fi
3028 fi
3029
3030 if test "$xen_pci_passthrough" != "no"; then
3031   if test "$xen" = "yes" && test "$linux" = "yes"; then
3032     xen_pci_passthrough=yes
3033   else
3034     if test "$xen_pci_passthrough" = "yes"; then
3035       error_exit "User requested feature Xen PCI Passthrough" \
3036           " but this feature requires /sys from Linux"
3037     fi
3038     xen_pci_passthrough=no
3039   fi
3040 fi
3041
3042 ##########################################
3043 # Windows Hypervisor Platform accelerator (WHPX) check
3044 if test "$whpx" != "no" ; then
3045     if check_include "WinHvPlatform.h" && check_include "WinHvEmulation.h"; then
3046         whpx="yes"
3047     else
3048         if test "$whpx" = "yes"; then
3049             feature_not_found "WinHvPlatform" "WinHvEmulation is not installed"
3050         fi
3051         whpx="no"
3052     fi
3053 fi
3054
3055 ##########################################
3056 # gettext probe
3057 if test "$gettext" != "false" ; then
3058   if has xgettext; then
3059     gettext=true
3060   else
3061     if test "$gettext" = "true" ; then
3062       feature_not_found "gettext" "Install xgettext binary"
3063     fi
3064     gettext=false
3065   fi
3066 fi
3067
3068 ##########################################
3069 # Sparse probe
3070 if test "$sparse" != "no" ; then
3071   if has sparse; then
3072     sparse=yes
3073   else
3074     if test "$sparse" = "yes" ; then
3075       feature_not_found "sparse" "Install sparse binary"
3076     fi
3077     sparse=no
3078   fi
3079 fi
3080
3081 ##########################################
3082 # X11 probe
3083 if $pkg_config --exists "x11"; then
3084     have_x11=yes
3085     x11_cflags=$($pkg_config --cflags x11)
3086     x11_libs=$($pkg_config --libs x11)
3087 fi
3088
3089 ##########################################
3090 # GTK probe
3091
3092 if test "$gtk" != "no"; then
3093     gtkpackage="gtk+-3.0"
3094     gtkx11package="gtk+-x11-3.0"
3095     gtkversion="3.22.0"
3096     if $pkg_config --exists "$gtkpackage >= $gtkversion"; then
3097         gtk_cflags=$($pkg_config --cflags $gtkpackage)
3098         gtk_libs=$($pkg_config --libs $gtkpackage)
3099         gtk_version=$($pkg_config --modversion $gtkpackage)
3100         if $pkg_config --exists "$gtkx11package >= $gtkversion"; then
3101             need_x11=yes
3102             gtk_cflags="$gtk_cflags $x11_cflags"
3103             gtk_libs="$gtk_libs $x11_libs"
3104         fi
3105         gtk="yes"
3106     elif test "$gtk" = "yes"; then
3107         feature_not_found "gtk" "Install gtk3-devel"
3108     else
3109         gtk="no"
3110     fi
3111 fi
3112
3113
3114 ##########################################
3115 # GNUTLS probe
3116
3117 if test "$gnutls" != "no"; then
3118     pass="no"
3119     if $pkg_config --exists "gnutls >= 3.1.18"; then
3120         gnutls_cflags=$($pkg_config --cflags gnutls)
3121         gnutls_libs=$($pkg_config --libs gnutls)
3122         # Packaging for the static libraries is not always correct.
3123         # At least ubuntu 18.04 ships only shared libraries.
3124         write_c_skeleton
3125         if compile_prog "" "$gnutls_libs" ; then
3126             LIBS="$gnutls_libs $LIBS"
3127             QEMU_CFLAGS="$QEMU_CFLAGS $gnutls_cflags"
3128             pass="yes"
3129         fi
3130     fi
3131     if test "$pass" = "no" && test "$gnutls" = "yes"; then
3132         feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
3133     else
3134         gnutls="$pass"
3135     fi
3136 fi
3137
3138
3139 # If user didn't give a --disable/enable-gcrypt flag,
3140 # then mark as disabled if user requested nettle
3141 # explicitly
3142 if test -z "$gcrypt"
3143 then
3144     if test "$nettle" = "yes"
3145     then
3146         gcrypt="no"
3147     fi
3148 fi
3149
3150 # If user didn't give a --disable/enable-nettle flag,
3151 # then mark as disabled if user requested gcrypt
3152 # explicitly
3153 if test -z "$nettle"
3154 then
3155     if test "$gcrypt" = "yes"
3156     then
3157         nettle="no"
3158     fi
3159 fi
3160
3161 has_libgcrypt() {
3162     if ! has "libgcrypt-config"
3163     then
3164         return 1
3165     fi
3166
3167     if test -n "$cross_prefix"
3168     then
3169         host=$(libgcrypt-config --host)
3170         if test "$host-" != $cross_prefix
3171         then
3172             return 1
3173         fi
3174     fi
3175
3176     maj=`libgcrypt-config --version | awk -F . '{print $1}'`
3177     min=`libgcrypt-config --version | awk -F . '{print $2}'`
3178
3179     if test $maj != 1 || test $min -lt 5
3180     then
3181        return 1
3182     fi
3183
3184     return 0
3185 }
3186
3187
3188 if test "$nettle" != "no"; then
3189     pass="no"
3190     if $pkg_config --exists "nettle >= 2.7.1"; then
3191         nettle_cflags=$($pkg_config --cflags nettle)
3192         nettle_libs=$($pkg_config --libs nettle)
3193         nettle_version=$($pkg_config --modversion nettle)
3194         # Link test to make sure the given libraries work (e.g for static).
3195         write_c_skeleton
3196         if compile_prog "" "$nettle_libs" ; then
3197             LIBS="$nettle_libs $LIBS"
3198             QEMU_CFLAGS="$QEMU_CFLAGS $nettle_cflags"
3199             if test -z "$gcrypt"; then
3200                gcrypt="no"
3201             fi
3202             pass="yes"
3203         fi
3204     fi
3205     if test "$pass" = "yes"
3206     then
3207         cat > $TMPC << EOF
3208 #include <nettle/xts.h>
3209 int main(void) {
3210   return 0;
3211 }
3212 EOF
3213         if compile_prog "$nettle_cflags" "$nettle_libs" ; then
3214             nettle_xts=yes
3215             qemu_private_xts=no
3216         fi
3217     fi
3218     if test "$pass" = "no" && test "$nettle" = "yes"; then
3219         feature_not_found "nettle" "Install nettle devel >= 2.7.1"
3220     else
3221         nettle="$pass"
3222     fi
3223 fi
3224
3225 if test "$gcrypt" != "no"; then
3226     pass="no"
3227     if has_libgcrypt; then
3228         gcrypt_cflags=$(libgcrypt-config --cflags)
3229         gcrypt_libs=$(libgcrypt-config --libs)
3230         # Debian has removed -lgpg-error from libgcrypt-config
3231         # as it "spreads unnecessary dependencies" which in
3232         # turn breaks static builds...
3233         if test "$static" = "yes"
3234         then
3235             gcrypt_libs="$gcrypt_libs -lgpg-error"
3236         fi
3237
3238         # Link test to make sure the given libraries work (e.g for static).
3239         write_c_skeleton
3240         if compile_prog "" "$gcrypt_libs" ; then
3241             LIBS="$gcrypt_libs $LIBS"
3242             QEMU_CFLAGS="$QEMU_CFLAGS $gcrypt_cflags"
3243             pass="yes"
3244         fi
3245     fi
3246     if test "$pass" = "yes"; then
3247         gcrypt="yes"
3248         cat > $TMPC << EOF
3249 #include <gcrypt.h>
3250 int main(void) {
3251   gcry_mac_hd_t handle;
3252   gcry_mac_open(&handle, GCRY_MAC_HMAC_MD5,
3253                 GCRY_MAC_FLAG_SECURE, NULL);
3254   return 0;
3255 }
3256 EOF
3257         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3258             gcrypt_hmac=yes
3259         fi
3260         cat > $TMPC << EOF
3261 #include <gcrypt.h>
3262 int main(void) {
3263   gcry_cipher_hd_t handle;
3264   gcry_cipher_open(&handle, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_XTS, 0);
3265   return 0;
3266 }
3267 EOF
3268         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3269             gcrypt_xts=yes
3270             qemu_private_xts=no
3271         fi
3272     elif test "$gcrypt" = "yes"; then
3273         feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
3274     else
3275         gcrypt="no"
3276     fi
3277 fi
3278
3279
3280 if test "$gcrypt" = "yes" && test "$nettle" = "yes"
3281 then
3282     error_exit "Only one of gcrypt & nettle can be enabled"
3283 fi
3284
3285 ##########################################
3286 # libtasn1 - only for the TLS creds/session test suite
3287
3288 tasn1=yes
3289 tasn1_cflags=""
3290 tasn1_libs=""
3291 if $pkg_config --exists "libtasn1"; then
3292     tasn1_cflags=$($pkg_config --cflags libtasn1)
3293     tasn1_libs=$($pkg_config --libs libtasn1)
3294 else
3295     tasn1=no
3296 fi
3297
3298
3299 ##########################################
3300 # PAM probe
3301
3302 if test "$auth_pam" != "no"; then
3303     cat > $TMPC <<EOF
3304 #include <security/pam_appl.h>
3305 #include <stdio.h>
3306 int main(void) {
3307    const char *service_name = "qemu";
3308    const char *user = "frank";
3309    const struct pam_conv pam_conv = { 0 };
3310    pam_handle_t *pamh = NULL;
3311    pam_start(service_name, user, &pam_conv, &pamh);
3312    return 0;
3313 }
3314 EOF
3315     if compile_prog "" "-lpam" ; then
3316         auth_pam=yes
3317     else
3318         if test "$auth_pam" = "yes"; then
3319             feature_not_found "PAM" "Install PAM development package"
3320         else
3321             auth_pam=no
3322         fi
3323     fi
3324 fi
3325
3326 ##########################################
3327 # getifaddrs (for tests/test-io-channel-socket )
3328
3329 have_ifaddrs_h=yes
3330 if ! check_include "ifaddrs.h" ; then
3331   have_ifaddrs_h=no
3332 fi
3333
3334 #########################################
3335 # libdrm check
3336 have_drm_h=no
3337 if check_include "libdrm/drm.h" ; then
3338     have_drm_h=yes
3339 fi
3340
3341 #########################################
3342 # sys/signal.h check
3343 have_sys_signal_h=no
3344 if check_include "sys/signal.h" ; then
3345   have_sys_signal_h=yes
3346 fi
3347
3348 ##########################################
3349 # VTE probe
3350
3351 if test "$vte" != "no"; then
3352     vteminversion="0.32.0"
3353     if $pkg_config --exists "vte-2.91"; then
3354       vtepackage="vte-2.91"
3355     else
3356       vtepackage="vte-2.90"
3357     fi
3358     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
3359         vte_cflags=$($pkg_config --cflags $vtepackage)
3360         vte_libs=$($pkg_config --libs $vtepackage)
3361         vteversion=$($pkg_config --modversion $vtepackage)
3362         vte="yes"
3363     elif test "$vte" = "yes"; then
3364         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
3365     else
3366         vte="no"
3367     fi
3368 fi
3369
3370 ##########################################
3371 # RDMA needs OpenFabrics libraries
3372 if test "$rdma" != "no" ; then
3373   cat > $TMPC <<EOF
3374 #include <rdma/rdma_cma.h>
3375 int main(void) { return 0; }
3376 EOF
3377   rdma_libs="-lrdmacm -libverbs -libumad"
3378   if compile_prog "" "$rdma_libs" ; then
3379     rdma="yes"
3380   else
3381     if test "$rdma" = "yes" ; then
3382         error_exit \
3383             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
3384             " Your options:" \
3385             "  (1) Fast: Install infiniband packages (devel) from your distro." \
3386             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
3387             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
3388     fi
3389     rdma="no"
3390   fi
3391 fi
3392
3393 ##########################################
3394 # PVRDMA detection
3395
3396 cat > $TMPC <<EOF &&
3397 #include <sys/mman.h>
3398
3399 int
3400 main(void)
3401 {
3402     char buf = 0;
3403     void *addr = &buf;
3404     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3405
3406     return 0;
3407 }
3408 EOF
3409
3410 if test "$rdma" = "yes" ; then
3411     case "$pvrdma" in
3412     "")
3413         if compile_prog "" ""; then
3414             pvrdma="yes"
3415         else
3416             pvrdma="no"
3417         fi
3418         ;;
3419     "yes")
3420         if ! compile_prog "" ""; then
3421             error_exit "PVRDMA is not supported since mremap is not implemented"
3422         fi
3423         pvrdma="yes"
3424         ;;
3425     "no")
3426         pvrdma="no"
3427         ;;
3428     esac
3429 else
3430     if test "$pvrdma" = "yes" ; then
3431         error_exit "PVRDMA requires rdma suppport"
3432     fi
3433     pvrdma="no"
3434 fi
3435
3436 # Let's see if enhanced reg_mr is supported
3437 if test "$pvrdma" = "yes" ; then
3438
3439 cat > $TMPC <<EOF &&
3440 #include <infiniband/verbs.h>
3441
3442 int
3443 main(void)
3444 {
3445     struct ibv_mr *mr;
3446     struct ibv_pd *pd = NULL;
3447     size_t length = 10;
3448     uint64_t iova = 0;
3449     int access = 0;
3450     void *addr = NULL;
3451
3452     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
3453
3454     ibv_dereg_mr(mr);
3455
3456     return 0;
3457 }
3458 EOF
3459     if ! compile_prog "" "-libverbs"; then
3460         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
3461     fi
3462 fi
3463
3464 ##########################################
3465 # xfsctl() probe, used for file-posix.c
3466 if test "$xfs" != "no" ; then
3467   cat > $TMPC << EOF
3468 #include <stddef.h>  /* NULL */
3469 #include <xfs/xfs.h>
3470 int main(void)
3471 {
3472     xfsctl(NULL, 0, 0, NULL);
3473     return 0;
3474 }
3475 EOF
3476   if compile_prog "" "" ; then
3477     xfs="yes"
3478   else
3479     if test "$xfs" = "yes" ; then
3480       feature_not_found "xfs" "Instal xfsprogs/xfslibs devel"
3481     fi
3482     xfs=no
3483   fi
3484 fi
3485
3486 ##########################################
3487 # vde libraries probe
3488 if test "$vde" != "no" ; then
3489   vde_libs="-lvdeplug"
3490   cat > $TMPC << EOF
3491 #include <libvdeplug.h>
3492 int main(void)
3493 {
3494     struct vde_open_args a = {0, 0, 0};
3495     char s[] = "";
3496     vde_open(s, s, &a);
3497     return 0;
3498 }
3499 EOF
3500   if compile_prog "" "$vde_libs" ; then
3501     vde=yes
3502   else
3503     if test "$vde" = "yes" ; then
3504       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3505     fi
3506     vde=no
3507   fi
3508 fi
3509
3510 ##########################################
3511 # netmap support probe
3512 # Apart from looking for netmap headers, we make sure that the host API version
3513 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3514 # a minor/major version number. Minor new features will be marked with values up
3515 # to 15, and if something happens that requires a change to the backend we will
3516 # move above 15, submit the backend fixes and modify this two bounds.
3517 if test "$netmap" != "no" ; then
3518   cat > $TMPC << EOF
3519 #include <inttypes.h>
3520 #include <net/if.h>
3521 #include <net/netmap.h>
3522 #include <net/netmap_user.h>
3523 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3524 #error
3525 #endif
3526 int main(void) { return 0; }
3527 EOF
3528   if compile_prog "" "" ; then
3529     netmap=yes
3530   else
3531     if test "$netmap" = "yes" ; then
3532       feature_not_found "netmap"
3533     fi
3534     netmap=no
3535   fi
3536 fi
3537
3538 ##########################################
3539 # libcap-ng library probe
3540 if test "$cap_ng" != "no" ; then
3541   cap_libs="-lcap-ng"
3542   cat > $TMPC << EOF
3543 #include <cap-ng.h>
3544 int main(void)
3545 {
3546     capng_capability_to_name(CAPNG_EFFECTIVE);
3547     return 0;
3548 }
3549 EOF
3550   if compile_prog "" "$cap_libs" ; then
3551     cap_ng=yes
3552   else
3553     if test "$cap_ng" = "yes" ; then
3554       feature_not_found "cap_ng" "Install libcap-ng devel"
3555     fi
3556     cap_ng=no
3557   fi
3558 fi
3559
3560 ##########################################
3561 # Sound support libraries probe
3562
3563 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3564 for drv in $audio_drv_list; do
3565     case $drv in
3566     alsa | try-alsa)
3567     if $pkg_config alsa --exists; then
3568         alsa_libs=$($pkg_config alsa --libs)
3569         alsa_cflags=$($pkg_config alsa --cflags)
3570         alsa=yes
3571         if test "$drv" = "try-alsa"; then
3572             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3573         fi
3574     else
3575         if test "$drv" = "try-alsa"; then
3576             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3577         else
3578             error_exit "$drv check failed" \
3579                 "Make sure to have the $drv libs and headers installed."
3580         fi
3581     fi
3582     ;;
3583
3584     pa | try-pa)
3585     if $pkg_config libpulse --exists; then
3586         libpulse=yes
3587         pulse_libs=$($pkg_config libpulse --libs)
3588         pulse_cflags=$($pkg_config libpulse --cflags)
3589         if test "$drv" = "try-pa"; then
3590             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3591         fi
3592     else
3593         if test "$drv" = "try-pa"; then
3594             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3595         else
3596             error_exit "$drv check failed" \
3597                 "Make sure to have the $drv libs and headers installed."
3598         fi
3599     fi
3600     ;;
3601
3602     sdl)
3603     if test "$sdl" = "no"; then
3604         error_exit "sdl not found or disabled, can not use sdl audio driver"
3605     fi
3606     ;;
3607
3608     try-sdl)
3609     if test "$sdl" = "no"; then
3610         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3611     else
3612         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3613     fi
3614     ;;
3615
3616     coreaudio)
3617       coreaudio_libs="-framework CoreAudio"
3618     ;;
3619
3620     dsound)
3621       dsound_libs="-lole32 -ldxguid"
3622       audio_win_int="yes"
3623     ;;
3624
3625     oss)
3626       oss_libs="$oss_lib"
3627     ;;
3628
3629     jack | try-jack)
3630     if $pkg_config jack --exists; then
3631         libjack=yes
3632         jack_libs=$($pkg_config jack --libs)
3633         if test "$drv" = "try-jack"; then
3634             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3635         fi
3636     else
3637         if test "$drv" = "try-jack"; then
3638             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3639         else
3640             error_exit "$drv check failed" \
3641                 "Make sure to have the $drv libs and headers installed."
3642         fi
3643     fi
3644     ;;
3645
3646     *)
3647     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3648         error_exit "Unknown driver '$drv' selected" \
3649             "Possible drivers are: $audio_possible_drivers"
3650     }
3651     ;;
3652     esac
3653 done
3654
3655 ##########################################
3656 # BrlAPI probe
3657
3658 if test "$brlapi" != "no" ; then
3659   brlapi_libs="-lbrlapi"
3660   cat > $TMPC << EOF
3661 #include <brlapi.h>
3662 #include <stddef.h>
3663 int main( void ) { return brlapi__openConnection (NULL, NULL, NULL); }
3664 EOF
3665   if compile_prog "" "$brlapi_libs" ; then
3666     brlapi=yes
3667   else
3668     if test "$brlapi" = "yes" ; then
3669       feature_not_found "brlapi" "Install brlapi devel"
3670     fi
3671     brlapi=no
3672   fi
3673 fi
3674
3675 ##########################################
3676 # iconv probe
3677 if test "$iconv" != "no" ; then
3678   cat > $TMPC << EOF
3679 #include <iconv.h>
3680 int main(void) {
3681   iconv_t conv = iconv_open("WCHAR_T", "UCS-2");
3682   return conv != (iconv_t) -1;
3683 }
3684 EOF
3685   iconv_prefix_list="/usr/local:/usr"
3686   iconv_lib_list=":-liconv"
3687   IFS=:
3688   for iconv_prefix in $iconv_prefix_list; do
3689     IFS=:
3690     iconv_cflags="-I$iconv_prefix/include"
3691     iconv_ldflags="-L$iconv_prefix/lib"
3692     for iconv_link in $iconv_lib_list; do
3693       unset IFS
3694       iconv_lib="$iconv_ldflags $iconv_link"
3695       echo "looking at iconv in '$iconv_cflags' '$iconv_lib'" >> config.log
3696       if compile_prog "$iconv_cflags" "$iconv_lib" ; then
3697         iconv_found=yes
3698         break
3699       fi
3700     done
3701     if test "$iconv_found" = yes ; then
3702       break
3703     fi
3704   done
3705   if test "$iconv_found" = "yes" ; then
3706     iconv=yes
3707   else
3708     if test "$iconv" = "yes" ; then
3709       feature_not_found "iconv" "Install iconv devel"
3710     fi
3711     iconv=no
3712   fi
3713 fi
3714
3715 ##########################################
3716 # curses probe
3717 if test "$iconv" = "no" ; then
3718   # curses will need iconv
3719   curses=no
3720 fi
3721 if test "$curses" != "no" ; then
3722   if test "$mingw32" = "yes" ; then
3723     curses_inc_list="$($pkg_config --cflags ncurses 2>/dev/null):"
3724     curses_lib_list="$($pkg_config --libs ncurses 2>/dev/null):-lpdcurses"
3725   else
3726     curses_inc_list="$($pkg_config --cflags ncursesw 2>/dev/null):-I/usr/include/ncursesw:"
3727     curses_lib_list="$($pkg_config --libs ncursesw 2>/dev/null):-lncursesw:-lcursesw"
3728   fi
3729   curses_found=no
3730   cat > $TMPC << EOF
3731 #include <locale.h>
3732 #include <curses.h>
3733 #include <wchar.h>
3734 #include <langinfo.h>
3735 int main(void) {
3736   const char *codeset;
3737   wchar_t wch = L'w';
3738   setlocale(LC_ALL, "");
3739   resize_term(0, 0);
3740   addwstr(L"wide chars\n");
3741   addnwstr(&wch, 1);
3742   add_wch(WACS_DEGREE);
3743   codeset = nl_langinfo(CODESET);
3744   return codeset != 0;
3745 }
3746 EOF
3747   IFS=:
3748   for curses_inc in $curses_inc_list; do
3749     # Make sure we get the wide character prototypes
3750     curses_inc="-DNCURSES_WIDECHAR $curses_inc"
3751     IFS=:
3752     for curses_lib in $curses_lib_list; do
3753       unset IFS
3754       if compile_prog "$curses_inc" "$curses_lib" ; then
3755         curses_found=yes
3756         break
3757       fi
3758     done
3759     if test "$curses_found" = yes ; then
3760       break
3761     fi
3762   done
3763   unset IFS
3764   if test "$curses_found" = "yes" ; then
3765     curses=yes
3766   else
3767     if test "$curses" = "yes" ; then
3768       feature_not_found "curses" "Install ncurses devel"
3769     fi
3770     curses=no
3771   fi
3772 fi
3773
3774 ##########################################
3775 # curl probe
3776 if test "$curl" != "no" ; then
3777   if $pkg_config libcurl --exists; then
3778     curlconfig="$pkg_config libcurl"
3779   else
3780     curlconfig=curl-config
3781   fi
3782   cat > $TMPC << EOF
3783 #include <curl/curl.h>
3784 int main(void) { curl_easy_init(); curl_multi_setopt(0, 0, 0); return 0; }
3785 EOF
3786   curl_cflags=$($curlconfig --cflags 2>/dev/null)
3787   curl_libs=$($curlconfig --libs 2>/dev/null)
3788   if compile_prog "$curl_cflags" "$curl_libs" ; then
3789     curl=yes
3790   else
3791     if test "$curl" = "yes" ; then
3792       feature_not_found "curl" "Install libcurl devel"
3793     fi
3794     curl=no
3795   fi
3796 fi # test "$curl"
3797
3798 ##########################################
3799 # glib support probe
3800
3801 glib_req_ver=2.48
3802 glib_modules=gthread-2.0
3803 if test "$modules" = yes; then
3804     glib_modules="$glib_modules gmodule-export-2.0"
3805 fi
3806 if test "$plugins" = yes; then
3807     glib_modules="$glib_modules gmodule-2.0"
3808 fi
3809
3810 # This workaround is required due to a bug in pkg-config file for glib as it
3811 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3812
3813 if test "$static" = yes && test "$mingw32" = yes; then
3814     QEMU_CFLAGS="-DGLIB_STATIC_COMPILATION $QEMU_CFLAGS"
3815 fi
3816
3817 for i in $glib_modules; do
3818     if $pkg_config --atleast-version=$glib_req_ver $i; then
3819         glib_cflags=$($pkg_config --cflags $i)
3820         glib_libs=$($pkg_config --libs $i)
3821         QEMU_CFLAGS="$glib_cflags $QEMU_CFLAGS"
3822         LIBS="$glib_libs $LIBS"
3823     else
3824         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3825     fi
3826 done
3827
3828 if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3829     gio=yes
3830     gio_cflags=$($pkg_config --cflags gio-2.0)
3831     gio_libs=$($pkg_config --libs gio-2.0)
3832     gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3833     if [ ! -x "$gdbus_codegen" ]; then
3834         gdbus_codegen=
3835     fi
3836 else
3837     gio=no
3838 fi
3839
3840 if $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3841     gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3842     gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3843 fi
3844
3845 # Sanity check that the current size_t matches the
3846 # size that glib thinks it should be. This catches
3847 # problems on multi-arch where people try to build
3848 # 32-bit QEMU while pointing at 64-bit glib headers
3849 cat > $TMPC <<EOF
3850 #include <glib.h>
3851 #include <unistd.h>
3852
3853 #define QEMU_BUILD_BUG_ON(x) \
3854   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3855
3856 int main(void) {
3857    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3858    return 0;
3859 }
3860 EOF
3861
3862 if ! compile_prog "$CFLAGS" "$LIBS" ; then
3863     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3864                "You probably need to set PKG_CONFIG_LIBDIR"\
3865                "to point to the right pkg-config files for your"\
3866                "build target"
3867 fi
3868
3869 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3870 cat > $TMPC << EOF
3871 #include <glib.h>
3872 int main(void) { return 0; }
3873 EOF
3874 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3875     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3876         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3877         QEMU_CFLAGS="-Wno-unknown-attributes $CFLAGS"
3878     fi
3879 fi
3880
3881 # Silence clang warnings triggered by glib < 2.57.2
3882 cat > $TMPC << EOF
3883 #include <glib.h>
3884 typedef struct Foo {
3885     int i;
3886 } Foo;
3887 static void foo_free(Foo *f)
3888 {
3889     g_free(f);
3890 }
3891 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3892 int main(void) { return 0; }
3893 EOF
3894 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3895     if cc_has_warning_flag "-Wno-unused-function"; then
3896         glib_cflags="$glib_cflags -Wno-unused-function"
3897         CFLAGS="$CFLAGS -Wno-unused-function"
3898     fi
3899 fi
3900
3901 #########################################
3902 # zlib check
3903
3904 if test "$zlib" != "no" ; then
3905     if $pkg_config --exists zlib; then
3906         zlib_cflags=$($pkg_config --cflags zlib)
3907         zlib_libs=$($pkg_config --libs zlib)
3908         QEMU_CFLAGS="$zlib_cflags $QEMU_CFLAGS"
3909         LIBS="$zlib_libs $LIBS"
3910     else
3911         cat > $TMPC << EOF
3912 #include <zlib.h>
3913 int main(void) { zlibVersion(); return 0; }
3914 EOF
3915         if compile_prog "" "-lz" ; then
3916             zlib_libs=-lz
3917             LIBS="$LIBS $zlib_libs"
3918         else
3919             error_exit "zlib check failed" \
3920                 "Make sure to have the zlib libs and headers installed."
3921         fi
3922     fi
3923 fi
3924
3925 ##########################################
3926 # SHA command probe for modules
3927 if test "$modules" = yes; then
3928     shacmd_probe="sha1sum sha1 shasum"
3929     for c in $shacmd_probe; do
3930         if has $c; then
3931             shacmd="$c"
3932             break
3933         fi
3934     done
3935     if test "$shacmd" = ""; then
3936         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3937     fi
3938 fi
3939
3940 ##########################################
3941 # libmpathpersist probe
3942
3943 if test "$mpath" != "no" ; then
3944   # probe for the new API
3945   cat > $TMPC <<EOF
3946 #include <libudev.h>
3947 #include <mpath_persist.h>
3948 unsigned mpath_mx_alloc_len = 1024;
3949 int logsink;
3950 static struct config *multipath_conf;
3951 extern struct udev *udev;
3952 extern struct config *get_multipath_config(void);
3953 extern void put_multipath_config(struct config *conf);
3954 struct udev *udev;
3955 struct config *get_multipath_config(void) { return multipath_conf; }
3956 void put_multipath_config(struct config *conf) { }
3957
3958 int main(void) {
3959     udev = udev_new();
3960     multipath_conf = mpath_lib_init();
3961     return 0;
3962 }
3963 EOF
3964   if compile_prog "" "-ludev -lmultipath -lmpathpersist" ; then
3965     mpathpersist=yes
3966     mpathpersist_new_api=yes
3967   else
3968     # probe for the old API
3969     cat > $TMPC <<EOF
3970 #include <libudev.h>
3971 #include <mpath_persist.h>
3972 unsigned mpath_mx_alloc_len = 1024;
3973 int logsink;
3974 int main(void) {
3975     struct udev *udev = udev_new();
3976     mpath_lib_init(udev);
3977     return 0;
3978 }
3979 EOF
3980     if compile_prog "" "-ludev -lmultipath -lmpathpersist" ; then
3981       mpathpersist=yes
3982       mpathpersist_new_api=no
3983     else
3984       mpathpersist=no
3985     fi
3986   fi
3987 else
3988   mpathpersist=no
3989 fi
3990
3991 ##########################################
3992 # pthread probe
3993 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3994
3995 pthread=no
3996 cat > $TMPC << EOF
3997 #include <pthread.h>
3998 static void *f(void *p) { return NULL; }
3999 int main(void) {
4000   pthread_t thread;
4001   pthread_create(&thread, 0, f, 0);
4002   return 0;
4003 }
4004 EOF
4005 if compile_prog "" "" ; then
4006   pthread=yes
4007 else
4008   for pthread_lib in $PTHREADLIBS_LIST; do
4009     if compile_prog "" "$pthread_lib" ; then
4010       pthread=yes
4011       found=no
4012       for lib_entry in $LIBS; do
4013         if test "$lib_entry" = "$pthread_lib"; then
4014           found=yes
4015           break
4016         fi
4017       done
4018       if test "$found" = "no"; then
4019         LIBS="$pthread_lib $LIBS"
4020       fi
4021       PTHREAD_LIB="$pthread_lib"
4022       break
4023     fi
4024   done
4025 fi
4026
4027 if test "$mingw32" != yes && test "$pthread" = no; then
4028   error_exit "pthread check failed" \
4029       "Make sure to have the pthread libs and headers installed."
4030 fi
4031
4032 # check for pthread_setname_np with thread id
4033 pthread_setname_np_w_tid=no
4034 cat > $TMPC << EOF
4035 #include <pthread.h>
4036
4037 static void *f(void *p) { return NULL; }
4038 int main(void)
4039 {
4040     pthread_t thread;
4041     pthread_create(&thread, 0, f, 0);
4042     pthread_setname_np(thread, "QEMU");
4043     return 0;
4044 }
4045 EOF
4046 if compile_prog "" "$pthread_lib" ; then
4047   pthread_setname_np_w_tid=yes
4048 fi
4049
4050 # check for pthread_setname_np without thread id
4051 pthread_setname_np_wo_tid=no
4052 cat > $TMPC << EOF
4053 #include <pthread.h>
4054
4055 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
4056 int main(void)
4057 {
4058     pthread_t thread;
4059     pthread_create(&thread, 0, f, 0);
4060     return 0;
4061 }
4062 EOF
4063 if compile_prog "" "$pthread_lib" ; then
4064   pthread_setname_np_wo_tid=yes
4065 fi
4066
4067 ##########################################
4068 # rbd probe
4069 if test "$rbd" != "no" ; then
4070   cat > $TMPC <<EOF
4071 #include <stdio.h>
4072 #include <rbd/librbd.h>
4073 int main(void) {
4074     rados_t cluster;
4075     rados_create(&cluster, NULL);
4076     return 0;
4077 }
4078 EOF
4079   rbd_libs="-lrbd -lrados"
4080   if compile_prog "" "$rbd_libs" ; then
4081     rbd=yes
4082   else
4083     if test "$rbd" = "yes" ; then
4084       feature_not_found "rados block device" "Install librbd/ceph devel"
4085     fi
4086     rbd=no
4087   fi
4088 fi
4089
4090 ##########################################
4091 # libssh probe
4092 if test "$libssh" != "no" ; then
4093   if $pkg_config --exists libssh; then
4094     libssh_cflags=$($pkg_config libssh --cflags)
4095     libssh_libs=$($pkg_config libssh --libs)
4096     libssh=yes
4097   else
4098     if test "$libssh" = "yes" ; then
4099       error_exit "libssh required for --enable-libssh"
4100     fi
4101     libssh=no
4102   fi
4103 fi
4104
4105 ##########################################
4106 # Check for libssh 0.8
4107 # This is done like this instead of using the LIBSSH_VERSION_* and
4108 # SSH_VERSION_* macros because some distributions in the past shipped
4109 # snapshots of the future 0.8 from Git, and those snapshots did not
4110 # have updated version numbers (still referring to 0.7.0).
4111
4112 if test "$libssh" = "yes"; then
4113   cat > $TMPC <<EOF
4114 #include <libssh/libssh.h>
4115 int main(void) { return ssh_get_server_publickey(NULL, NULL); }
4116 EOF
4117   if compile_prog "$libssh_cflags" "$libssh_libs"; then
4118     libssh_cflags="-DHAVE_LIBSSH_0_8 $libssh_cflags"
4119   fi
4120 fi
4121
4122 ##########################################
4123 # linux-aio probe
4124
4125 if test "$linux_aio" != "no" ; then
4126   cat > $TMPC <<EOF
4127 #include <libaio.h>
4128 #include <sys/eventfd.h>
4129 #include <stddef.h>
4130 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
4131 EOF
4132   if compile_prog "" "-laio" ; then
4133     linux_aio=yes
4134   else
4135     if test "$linux_aio" = "yes" ; then
4136       feature_not_found "linux AIO" "Install libaio devel"
4137     fi
4138     linux_aio=no
4139   fi
4140 fi
4141 ##########################################
4142 # linux-io-uring probe
4143
4144 if test "$linux_io_uring" != "no" ; then
4145   if $pkg_config liburing; then
4146     linux_io_uring_cflags=$($pkg_config --cflags liburing)
4147     linux_io_uring_libs=$($pkg_config --libs liburing)
4148     linux_io_uring=yes
4149
4150     # io_uring is used in libqemuutil.a where per-file -libs variables are not
4151     # seen by programs linking the archive.  It's not ideal, but just add the
4152     # library dependency globally.
4153     LIBS="$linux_io_uring_libs $LIBS"
4154   else
4155     if test "$linux_io_uring" = "yes" ; then
4156       feature_not_found "linux io_uring" "Install liburing devel"
4157     fi
4158     linux_io_uring=no
4159   fi
4160 fi
4161
4162 ##########################################
4163 # TPM emulation is only on POSIX
4164
4165 if test "$tpm" = ""; then
4166   if test "$mingw32" = "yes"; then
4167     tpm=no
4168   else
4169     tpm=yes
4170   fi
4171 elif test "$tpm" = "yes"; then
4172   if test "$mingw32" = "yes" ; then
4173     error_exit "TPM emulation only available on POSIX systems"
4174   fi
4175 fi
4176
4177 ##########################################
4178 # attr probe
4179
4180 libattr_libs=
4181 if test "$attr" != "no" ; then
4182   cat > $TMPC <<EOF
4183 #include <stdio.h>
4184 #include <sys/types.h>
4185 #ifdef CONFIG_LIBATTR
4186 #include <attr/xattr.h>
4187 #else
4188 #include <sys/xattr.h>
4189 #endif
4190 int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }
4191 EOF
4192   if compile_prog "" "" ; then
4193     attr=yes
4194   # Older distros have <attr/xattr.h>, and need -lattr:
4195   elif compile_prog "-DCONFIG_LIBATTR" "-lattr" ; then
4196     attr=yes
4197     libattr_libs="-lattr"
4198     LIBS="$libattr_libs $LIBS"
4199     libattr=yes
4200   else
4201     if test "$attr" = "yes" ; then
4202       feature_not_found "ATTR" "Install libc6 or libattr devel"
4203     fi
4204     attr=no
4205   fi
4206 fi
4207
4208 ##########################################
4209 # iovec probe
4210 cat > $TMPC <<EOF
4211 #include <sys/types.h>
4212 #include <sys/uio.h>
4213 #include <unistd.h>
4214 int main(void) { return sizeof(struct iovec); }
4215 EOF
4216 iovec=no
4217 if compile_prog "" "" ; then
4218   iovec=yes
4219 fi
4220
4221 ##########################################
4222 # preadv probe
4223 cat > $TMPC <<EOF
4224 #include <sys/types.h>
4225 #include <sys/uio.h>
4226 #include <unistd.h>
4227 int main(void) { return preadv(0, 0, 0, 0); }
4228 EOF
4229 preadv=no
4230 if compile_prog "" "" ; then
4231   preadv=yes
4232 fi
4233
4234 ##########################################
4235 # fdt probe
4236 # fdt support is mandatory for at least some target architectures,
4237 # so insist on it if we're building those system emulators.
4238 fdt_required=no
4239 for target in $target_list; do
4240   case $target in
4241     aarch64*-softmmu|arm*-softmmu|ppc*-softmmu|microblaze*-softmmu|mips64el-softmmu|riscv*-softmmu|rx-softmmu)
4242       fdt_required=yes
4243     ;;
4244   esac
4245 done
4246
4247 if test "$fdt_required" = "yes"; then
4248   if test "$fdt" = "no"; then
4249     error_exit "fdt disabled but some requested targets require it." \
4250       "You can turn off fdt only if you also disable all the system emulation" \
4251       "targets which need it (by specifying a cut down --target-list)."
4252   fi
4253   fdt=yes
4254 elif test "$fdt" != "yes" ; then
4255   fdt=no
4256 fi
4257
4258 # fdt is only required when building softmmu targets
4259 if test -z "$fdt" -a "$softmmu" != "yes" ; then
4260     fdt="no"
4261 fi
4262
4263 if test "$fdt" != "no" ; then
4264   fdt_libs="-lfdt"
4265   # explicitly check for libfdt_env.h as it is missing in some stable installs
4266   # and test for required functions to make sure we are on a version >= 1.4.2
4267   cat > $TMPC << EOF
4268 #include <libfdt.h>
4269 #include <libfdt_env.h>
4270 int main(void) { fdt_check_full(NULL, 0); return 0; }
4271 EOF
4272   if compile_prog "" "$fdt_libs" ; then
4273     # system DTC is good - use it
4274     fdt=system
4275   else
4276       # have GIT checkout, so activate dtc submodule
4277       if test -e "${source_path}/.git" ; then
4278           git_submodules="${git_submodules} dtc"
4279       fi
4280       if test -d "${source_path}/dtc/libfdt" || test -e "${source_path}/.git" ; then
4281           fdt=git
4282           mkdir -p dtc
4283           if [ "$pwd_is_source_path" != "y" ] ; then
4284               symlink "$source_path/dtc/Makefile" "dtc/Makefile"
4285           fi
4286           fdt_cflags="-I${source_path}/dtc/libfdt"
4287           fdt_ldflags="-L$PWD/dtc/libfdt"
4288           fdt_libs="$fdt_libs"
4289       elif test "$fdt" = "yes" ; then
4290           # Not a git build & no libfdt found, prompt for system install
4291           error_exit "DTC (libfdt) version >= 1.4.2 not present." \
4292                      "Please install the DTC (libfdt) devel package"
4293       else
4294           # don't have and don't want
4295           fdt_libs=
4296           fdt=no
4297       fi
4298   fi
4299 fi
4300
4301 ##########################################
4302 # opengl probe (for sdl2, gtk, milkymist-tmu2)
4303
4304 gbm="no"
4305 if $pkg_config gbm; then
4306     gbm_cflags="$($pkg_config --cflags gbm)"
4307     gbm_libs="$($pkg_config --libs gbm)"
4308     gbm="yes"
4309 fi
4310
4311 if test "$opengl" != "no" ; then
4312   opengl_pkgs="epoxy gbm"
4313   if $pkg_config $opengl_pkgs; then
4314     opengl_cflags="$($pkg_config --cflags $opengl_pkgs)"
4315     opengl_libs="$($pkg_config --libs $opengl_pkgs)"
4316     opengl=yes
4317     if test "$gtk" = "yes" && $pkg_config --exists "$gtkpackage >= 3.16"; then
4318         gtk_gl="yes"
4319     fi
4320     QEMU_CFLAGS="$QEMU_CFLAGS $opengl_cflags"
4321   else
4322     if test "$opengl" = "yes" ; then
4323       feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
4324     fi
4325     opengl_cflags=""
4326     opengl_libs=""
4327     opengl=no
4328   fi
4329 fi
4330
4331 if test "$opengl" = "yes"; then
4332   cat > $TMPC << EOF
4333 #include <epoxy/egl.h>
4334 #ifndef EGL_MESA_image_dma_buf_export
4335 # error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
4336 #endif
4337 int main(void) { return 0; }
4338 EOF
4339   if compile_prog "" "" ; then
4340     opengl_dmabuf=yes
4341   fi
4342 fi
4343
4344 if test "$opengl" = "yes" && test "$have_x11" = "yes"; then
4345   for target in $target_list; do
4346     case $target in
4347       lm32-softmmu) # milkymist-tmu2 requires X11 and OpenGL
4348         need_x11=yes
4349       ;;
4350     esac
4351   done
4352 fi
4353
4354 ##########################################
4355 # libxml2 probe
4356 if test "$libxml2" != "no" ; then
4357     if $pkg_config --exists libxml-2.0; then
4358         libxml2="yes"
4359         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
4360         libxml2_libs=$($pkg_config --libs libxml-2.0)
4361     else
4362         if test "$libxml2" = "yes"; then
4363             feature_not_found "libxml2" "Install libxml2 devel"
4364         fi
4365         libxml2="no"
4366     fi
4367 fi
4368
4369 ##########################################
4370 # glusterfs probe
4371 if test "$glusterfs" != "no" ; then
4372   if $pkg_config --atleast-version=3 glusterfs-api; then
4373     glusterfs="yes"
4374     glusterfs_cflags=$($pkg_config --cflags glusterfs-api)
4375     glusterfs_libs=$($pkg_config --libs glusterfs-api)
4376     if $pkg_config --atleast-version=4 glusterfs-api; then
4377       glusterfs_xlator_opt="yes"
4378     fi
4379     if $pkg_config --atleast-version=5 glusterfs-api; then
4380       glusterfs_discard="yes"
4381     fi
4382     if $pkg_config --atleast-version=6 glusterfs-api; then
4383       glusterfs_fallocate="yes"
4384       glusterfs_zerofill="yes"
4385     fi
4386     cat > $TMPC << EOF
4387 #include <glusterfs/api/glfs.h>
4388
4389 int
4390 main(void)
4391 {
4392         /* new glfs_ftruncate() passes two additional args */
4393         return glfs_ftruncate(NULL, 0, NULL, NULL);
4394 }
4395 EOF
4396     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
4397       glusterfs_ftruncate_has_stat="yes"
4398     fi
4399     cat > $TMPC << EOF
4400 #include <glusterfs/api/glfs.h>
4401
4402 /* new glfs_io_cbk() passes two additional glfs_stat structs */
4403 static void
4404 glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
4405 {}
4406
4407 int
4408 main(void)
4409 {
4410         glfs_io_cbk iocb = &glusterfs_iocb;
4411         iocb(NULL, 0 , NULL, NULL, NULL);
4412         return 0;
4413 }
4414 EOF
4415     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
4416       glusterfs_iocb_has_stat="yes"
4417     fi
4418   else
4419     if test "$glusterfs" = "yes" ; then
4420       feature_not_found "GlusterFS backend support" \
4421           "Install glusterfs-api devel >= 3"
4422     fi
4423     glusterfs="no"
4424   fi
4425 fi
4426
4427 # Check for inotify functions when we are building linux-user
4428 # emulator.  This is done because older glibc versions don't
4429 # have syscall stubs for these implemented.  In that case we
4430 # don't provide them even if kernel supports them.
4431 #
4432 inotify=no
4433 cat > $TMPC << EOF
4434 #include <sys/inotify.h>
4435
4436 int
4437 main(void)
4438 {
4439         /* try to start inotify */
4440         return inotify_init();
4441 }
4442 EOF
4443 if compile_prog "" "" ; then
4444   inotify=yes
4445 fi
4446
4447 inotify1=no
4448 cat > $TMPC << EOF
4449 #include <sys/inotify.h>
4450
4451 int
4452 main(void)
4453 {
4454     /* try to start inotify */
4455     return inotify_init1(0);
4456 }
4457 EOF
4458 if compile_prog "" "" ; then
4459   inotify1=yes
4460 fi
4461
4462 # check if pipe2 is there
4463 pipe2=no
4464 cat > $TMPC << EOF
4465 #include <unistd.h>
4466 #include <fcntl.h>
4467
4468 int main(void)
4469 {
4470     int pipefd[2];
4471     return pipe2(pipefd, O_CLOEXEC);
4472 }
4473 EOF
4474 if compile_prog "" "" ; then
4475   pipe2=yes
4476 fi
4477
4478 # check if accept4 is there
4479 accept4=no
4480 cat > $TMPC << EOF
4481 #include <sys/socket.h>
4482 #include <stddef.h>
4483
4484 int main(void)
4485 {
4486     accept4(0, NULL, NULL, SOCK_CLOEXEC);
4487     return 0;
4488 }
4489 EOF
4490 if compile_prog "" "" ; then
4491   accept4=yes
4492 fi
4493
4494 # check if tee/splice is there. vmsplice was added same time.
4495 splice=no
4496 cat > $TMPC << EOF
4497 #include <unistd.h>
4498 #include <fcntl.h>
4499 #include <limits.h>
4500
4501 int main(void)
4502 {
4503     int len, fd = 0;
4504     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
4505     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
4506     return 0;
4507 }
4508 EOF
4509 if compile_prog "" "" ; then
4510   splice=yes
4511 fi
4512
4513 ##########################################
4514 # libnuma probe
4515
4516 if test "$numa" != "no" ; then
4517   cat > $TMPC << EOF
4518 #include <numa.h>
4519 int main(void) { return numa_available(); }
4520 EOF
4521
4522   if compile_prog "" "-lnuma" ; then
4523     numa=yes
4524     numa_libs="-lnuma"
4525   else
4526     if test "$numa" = "yes" ; then
4527       feature_not_found "numa" "install numactl devel"
4528     fi
4529     numa=no
4530   fi
4531 fi
4532
4533 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
4534     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
4535     exit 1
4536 fi
4537
4538 # Even if malloc_trim() is available, these non-libc memory allocators
4539 # do not support it.
4540 if test "$tcmalloc" = "yes" || test "$jemalloc" = "yes" ; then
4541     if test "$malloc_trim" = "yes" ; then
4542         echo "Disabling malloc_trim with non-libc memory allocator"
4543     fi
4544     malloc_trim="no"
4545 fi
4546
4547 #######################################
4548 # malloc_trim
4549
4550 if test "$malloc_trim" != "no" ; then
4551     cat > $TMPC << EOF
4552 #include <malloc.h>
4553 int main(void) { malloc_trim(0); return 0; }
4554 EOF
4555     if compile_prog "" "" ; then
4556         malloc_trim="yes"
4557     else
4558         malloc_trim="no"
4559     fi
4560 fi
4561
4562 ##########################################
4563 # tcmalloc probe
4564
4565 if test "$tcmalloc" = "yes" ; then
4566   cat > $TMPC << EOF
4567 #include <stdlib.h>
4568 int main(void) {
4569     void *tmp = malloc(1);
4570     if (tmp != NULL) {
4571         return 0;
4572     }
4573     return 1;
4574 }
4575 EOF
4576
4577   if compile_prog "" "-ltcmalloc" ; then
4578     LIBS="-ltcmalloc $LIBS"
4579   else
4580     feature_not_found "tcmalloc" "install gperftools devel"
4581   fi
4582 fi
4583
4584 ##########################################
4585 # jemalloc probe
4586
4587 if test "$jemalloc" = "yes" ; then
4588   cat > $TMPC << EOF
4589 #include <stdlib.h>
4590 int main(void) {
4591     void *tmp = malloc(1);
4592     if (tmp != NULL) {
4593         return 0;
4594     }
4595     return 1;
4596 }
4597 EOF
4598
4599   if compile_prog "" "-ljemalloc" ; then
4600     LIBS="-ljemalloc $LIBS"
4601   else
4602     feature_not_found "jemalloc" "install jemalloc devel"
4603   fi
4604 fi
4605
4606 ##########################################
4607 # signalfd probe
4608 signalfd="no"
4609 cat > $TMPC << EOF
4610 #include <unistd.h>
4611 #include <sys/syscall.h>
4612 #include <signal.h>
4613 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
4614 EOF
4615
4616 if compile_prog "" "" ; then
4617   signalfd=yes
4618 fi
4619
4620 # check if optreset global is declared by <getopt.h>
4621 optreset="no"
4622 cat > $TMPC << EOF
4623 #include <getopt.h>
4624 int main(void) { return optreset; }
4625 EOF
4626
4627 if compile_prog "" "" ; then
4628   optreset=yes
4629 fi
4630
4631 # check if eventfd is supported
4632 eventfd=no
4633 cat > $TMPC << EOF
4634 #include <sys/eventfd.h>
4635
4636 int main(void)
4637 {
4638     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
4639 }
4640 EOF
4641 if compile_prog "" "" ; then
4642   eventfd=yes
4643 fi
4644
4645 # check if memfd is supported
4646 memfd=no
4647 cat > $TMPC << EOF
4648 #include <sys/mman.h>
4649
4650 int main(void)
4651 {
4652     return memfd_create("foo", MFD_ALLOW_SEALING);
4653 }
4654 EOF
4655 if compile_prog "" "" ; then
4656   memfd=yes
4657 fi
4658
4659 # check for usbfs
4660 have_usbfs=no
4661 if test "$linux_user" = "yes"; then
4662   cat > $TMPC << EOF
4663 #include <linux/usbdevice_fs.h>
4664
4665 #ifndef USBDEVFS_GET_CAPABILITIES
4666 #error "USBDEVFS_GET_CAPABILITIES undefined"
4667 #endif
4668
4669 #ifndef USBDEVFS_DISCONNECT_CLAIM
4670 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
4671 #endif
4672
4673 int main(void)
4674 {
4675     return 0;
4676 }
4677 EOF
4678   if compile_prog "" ""; then
4679     have_usbfs=yes
4680   fi
4681 fi
4682
4683 # check for fallocate
4684 fallocate=no
4685 cat > $TMPC << EOF
4686 #include <fcntl.h>
4687
4688 int main(void)
4689 {
4690     fallocate(0, 0, 0, 0);
4691     return 0;
4692 }
4693 EOF
4694 if compile_prog "" "" ; then
4695   fallocate=yes
4696 fi
4697
4698 # check for fallocate hole punching
4699 fallocate_punch_hole=no
4700 cat > $TMPC << EOF
4701 #include <fcntl.h>
4702 #include <linux/falloc.h>
4703
4704 int main(void)
4705 {
4706     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
4707     return 0;
4708 }
4709 EOF
4710 if compile_prog "" "" ; then
4711   fallocate_punch_hole=yes
4712 fi
4713
4714 # check that fallocate supports range zeroing inside the file
4715 fallocate_zero_range=no
4716 cat > $TMPC << EOF
4717 #include <fcntl.h>
4718 #include <linux/falloc.h>
4719
4720 int main(void)
4721 {
4722     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
4723     return 0;
4724 }
4725 EOF
4726 if compile_prog "" "" ; then
4727   fallocate_zero_range=yes
4728 fi
4729
4730 # check for posix_fallocate
4731 posix_fallocate=no
4732 cat > $TMPC << EOF
4733 #include <fcntl.h>
4734
4735 int main(void)
4736 {
4737     posix_fallocate(0, 0, 0);
4738     return 0;
4739 }
4740 EOF
4741 if compile_prog "" "" ; then
4742     posix_fallocate=yes
4743 fi
4744
4745 # check for sync_file_range
4746 sync_file_range=no
4747 cat > $TMPC << EOF
4748 #include <fcntl.h>
4749
4750 int main(void)
4751 {
4752     sync_file_range(0, 0, 0, 0);
4753     return 0;
4754 }
4755 EOF
4756 if compile_prog "" "" ; then
4757   sync_file_range=yes
4758 fi
4759
4760 # check for linux/fiemap.h and FS_IOC_FIEMAP
4761 fiemap=no
4762 cat > $TMPC << EOF
4763 #include <sys/ioctl.h>
4764 #include <linux/fs.h>
4765 #include <linux/fiemap.h>
4766
4767 int main(void)
4768 {
4769     ioctl(0, FS_IOC_FIEMAP, 0);
4770     return 0;
4771 }
4772 EOF
4773 if compile_prog "" "" ; then
4774   fiemap=yes
4775 fi
4776
4777 # check for dup3
4778 dup3=no
4779 cat > $TMPC << EOF
4780 #include <unistd.h>
4781
4782 int main(void)
4783 {
4784     dup3(0, 0, 0);
4785     return 0;
4786 }
4787 EOF
4788 if compile_prog "" "" ; then
4789   dup3=yes
4790 fi
4791
4792 # check for ppoll support
4793 ppoll=no
4794 cat > $TMPC << EOF
4795 #include <poll.h>
4796
4797 int main(void)
4798 {
4799     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
4800     ppoll(&pfd, 1, 0, 0);
4801     return 0;
4802 }
4803 EOF
4804 if compile_prog "" "" ; then
4805   ppoll=yes
4806 fi
4807
4808 # check for prctl(PR_SET_TIMERSLACK , ... ) support
4809 prctl_pr_set_timerslack=no
4810 cat > $TMPC << EOF
4811 #include <sys/prctl.h>
4812
4813 int main(void)
4814 {
4815     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
4816     return 0;
4817 }
4818 EOF
4819 if compile_prog "" "" ; then
4820   prctl_pr_set_timerslack=yes
4821 fi
4822
4823 # check for epoll support
4824 epoll=no
4825 cat > $TMPC << EOF
4826 #include <sys/epoll.h>
4827
4828 int main(void)
4829 {
4830     epoll_create(0);
4831     return 0;
4832 }
4833 EOF
4834 if compile_prog "" "" ; then
4835   epoll=yes
4836 fi
4837
4838 # epoll_create1 is a later addition
4839 # so we must check separately for its presence
4840 epoll_create1=no
4841 cat > $TMPC << EOF
4842 #include <sys/epoll.h>
4843
4844 int main(void)
4845 {
4846     /* Note that we use epoll_create1 as a value, not as
4847      * a function being called. This is necessary so that on
4848      * old SPARC glibc versions where the function was present in
4849      * the library but not declared in the header file we will
4850      * fail the configure check. (Otherwise we will get a compiler
4851      * warning but not an error, and will proceed to fail the
4852      * qemu compile where we compile with -Werror.)
4853      */
4854     return (int)(uintptr_t)&epoll_create1;
4855 }
4856 EOF
4857 if compile_prog "" "" ; then
4858   epoll_create1=yes
4859 fi
4860
4861 # check for sendfile support
4862 sendfile=no
4863 cat > $TMPC << EOF
4864 #include <sys/sendfile.h>
4865
4866 int main(void)
4867 {
4868     return sendfile(0, 0, 0, 0);
4869 }
4870 EOF
4871 if compile_prog "" "" ; then
4872   sendfile=yes
4873 fi
4874
4875 # check for timerfd support (glibc 2.8 and newer)
4876 timerfd=no
4877 cat > $TMPC << EOF
4878 #include <sys/timerfd.h>
4879
4880 int main(void)
4881 {
4882     return(timerfd_create(CLOCK_REALTIME, 0));
4883 }
4884 EOF
4885 if compile_prog "" "" ; then
4886   timerfd=yes
4887 fi
4888
4889 # check for setns and unshare support
4890 setns=no
4891 cat > $TMPC << EOF
4892 #include <sched.h>
4893
4894 int main(void)
4895 {
4896     int ret;
4897     ret = setns(0, 0);
4898     ret = unshare(0);
4899     return ret;
4900 }
4901 EOF
4902 if compile_prog "" "" ; then
4903   setns=yes
4904 fi
4905
4906 # clock_adjtime probe
4907 clock_adjtime=no
4908 cat > $TMPC <<EOF
4909 #include <time.h>
4910
4911 int main(void)
4912 {
4913     return clock_adjtime(0, 0);
4914 }
4915 EOF
4916 clock_adjtime=no
4917 if compile_prog "" "" ; then
4918   clock_adjtime=yes
4919 fi
4920
4921 # syncfs probe
4922 syncfs=no
4923 cat > $TMPC <<EOF
4924 #include <unistd.h>
4925
4926 int main(void)
4927 {
4928     return syncfs(0);
4929 }
4930 EOF
4931 syncfs=no
4932 if compile_prog "" "" ; then
4933   syncfs=yes
4934 fi
4935
4936 # check for kcov support (kernel must be 4.4+, compiled with certain options)
4937 kcov=no
4938 if check_include sys/kcov.h ; then
4939     kcov=yes
4940 fi
4941
4942 # If we're making warnings fatal, apply this to Sphinx runs as well
4943 sphinx_werror=""
4944 if test "$werror" = "yes"; then
4945     sphinx_werror="-W"
4946 fi
4947
4948 # Check we have a new enough version of sphinx-build
4949 has_sphinx_build() {
4950     # This is a bit awkward but works: create a trivial document and
4951     # try to run it with our configuration file (which enforces a
4952     # version requirement). This will fail if either
4953     # sphinx-build doesn't exist at all or if it is too old.
4954     mkdir -p "$TMPDIR1/sphinx"
4955     touch "$TMPDIR1/sphinx/index.rst"
4956     "$sphinx_build" $sphinx_werror -c "$source_path/docs" \
4957                     -b html "$TMPDIR1/sphinx" \
4958                     "$TMPDIR1/sphinx/out"  >> config.log 2>&1
4959 }
4960
4961 # Check if tools are available to build documentation.
4962 if test "$docs" != "no" ; then
4963   if has_sphinx_build; then
4964     sphinx_ok=yes
4965   else
4966     sphinx_ok=no
4967   fi
4968   if has makeinfo && has pod2man && test "$sphinx_ok" = "yes"; then
4969     docs=yes
4970   else
4971     if test "$docs" = "yes" ; then
4972       if has $sphinx_build && test "$sphinx_ok" != "yes"; then
4973         echo "Warning: $sphinx_build exists but it is either too old or uses too old a Python version" >&2
4974       fi
4975       feature_not_found "docs" "Install texinfo, Perl/perl-podlators and a Python 3 version of python-sphinx"
4976     fi
4977     docs=no
4978   fi
4979 fi
4980
4981 # Search for bswap_32 function
4982 byteswap_h=no
4983 cat > $TMPC << EOF
4984 #include <byteswap.h>
4985 int main(void) { return bswap_32(0); }
4986 EOF
4987 if compile_prog "" "" ; then
4988   byteswap_h=yes
4989 fi
4990
4991 # Search for bswap32 function
4992 bswap_h=no
4993 cat > $TMPC << EOF
4994 #include <sys/endian.h>
4995 #include <sys/types.h>
4996 #include <machine/bswap.h>
4997 int main(void) { return bswap32(0); }
4998 EOF
4999 if compile_prog "" "" ; then
5000   bswap_h=yes
5001 fi
5002
5003 ##########################################
5004 # Do we have libiscsi >= 1.9.0
5005 if test "$libiscsi" != "no" ; then
5006   if $pkg_config --atleast-version=1.9.0 libiscsi; then
5007     libiscsi="yes"
5008     libiscsi_cflags=$($pkg_config --cflags libiscsi)
5009     libiscsi_libs=$($pkg_config --libs libiscsi)
5010   else
5011     if test "$libiscsi" = "yes" ; then
5012       feature_not_found "libiscsi" "Install libiscsi >= 1.9.0"
5013     fi
5014     libiscsi="no"
5015   fi
5016 fi
5017
5018 ##########################################
5019 # Do we need libm
5020 cat > $TMPC << EOF
5021 #include <math.h>
5022 int main(int argc, char **argv) { return isnan(sin((double)argc)); }
5023 EOF
5024 if compile_prog "" "" ; then
5025   :
5026 elif compile_prog "" "-lm" ; then
5027   LIBS="-lm $LIBS"
5028 else
5029   error_exit "libm check failed"
5030 fi
5031
5032 ##########################################
5033 # Do we need librt
5034 # uClibc provides 2 versions of clock_gettime(), one with realtime
5035 # support and one without. This means that the clock_gettime() don't
5036 # need -lrt. We still need it for timer_create() so we check for this
5037 # function in addition.
5038 cat > $TMPC <<EOF
5039 #include <signal.h>
5040 #include <time.h>
5041 int main(void) {
5042   timer_create(CLOCK_REALTIME, NULL, NULL);
5043   return clock_gettime(CLOCK_REALTIME, NULL);
5044 }
5045 EOF
5046
5047 if compile_prog "" "" ; then
5048   :
5049 # we need pthread for static linking. use previous pthread test result
5050 elif compile_prog "" "$pthread_lib -lrt" ; then
5051   LIBS="$LIBS -lrt"
5052 fi
5053
5054 # Check whether we need to link libutil for openpty()
5055 cat > $TMPC << EOF
5056 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
5057 int main(void) { return openpty(0, 0, 0, 0, 0); }
5058 EOF
5059
5060 have_openpty="no"
5061 if compile_prog "" "" ; then
5062   have_openpty="yes"
5063 else
5064   if compile_prog "" "-lutil" ; then
5065     libs_tools="-lutil $libs_tools"
5066     have_openpty="yes"
5067   fi
5068 fi
5069
5070 ##########################################
5071 # spice probe
5072 if test "$spice" != "no" ; then
5073   cat > $TMPC << EOF
5074 #include <spice.h>
5075 int main(void) { spice_server_new(); return 0; }
5076 EOF
5077   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
5078   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
5079   if $pkg_config --atleast-version=0.12.5 spice-server && \
5080      $pkg_config --atleast-version=0.12.3 spice-protocol && \
5081      compile_prog "$spice_cflags" "$spice_libs" ; then
5082     spice="yes"
5083     QEMU_CFLAGS="$QEMU_CFLAGS $spice_cflags"
5084   else
5085     if test "$spice" = "yes" ; then
5086       feature_not_found "spice" \
5087           "Install spice-server(>=0.12.5) and spice-protocol(>=0.12.3) devel"
5088     fi
5089     spice="no"
5090   fi
5091 fi
5092
5093 # check for smartcard support
5094 if test "$smartcard" != "no"; then
5095     if $pkg_config --atleast-version=2.5.1 libcacard; then
5096         libcacard_cflags=$($pkg_config --cflags libcacard)
5097         libcacard_libs=$($pkg_config --libs libcacard)
5098         smartcard="yes"
5099     else
5100         if test "$smartcard" = "yes"; then
5101             feature_not_found "smartcard" "Install libcacard devel"
5102         fi
5103         smartcard="no"
5104     fi
5105 fi
5106
5107 # check for libusb
5108 if test "$libusb" != "no" ; then
5109     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
5110         libusb="yes"
5111         libusb_cflags=$($pkg_config --cflags libusb-1.0)
5112         libusb_libs=$($pkg_config --libs libusb-1.0)
5113     else
5114         if test "$libusb" = "yes"; then
5115             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
5116         fi
5117         libusb="no"
5118     fi
5119 fi
5120
5121 # check for usbredirparser for usb network redirection support
5122 if test "$usb_redir" != "no" ; then
5123     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
5124         usb_redir="yes"
5125         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
5126         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
5127     else
5128         if test "$usb_redir" = "yes"; then
5129             feature_not_found "usb-redir" "Install usbredir devel"
5130         fi
5131         usb_redir="no"
5132     fi
5133 fi
5134
5135 ##########################################
5136 # check if we have VSS SDK headers for win
5137
5138 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
5139         test "$vss_win32_sdk" != "no" ; then
5140   case "$vss_win32_sdk" in
5141     "")   vss_win32_include="-isystem $source_path" ;;
5142     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
5143           # handle path with spaces. So we symlink the headers into ".sdk/vss".
5144           vss_win32_include="-isystem $source_path/.sdk/vss"
5145           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
5146           ;;
5147     *)    vss_win32_include="-isystem $vss_win32_sdk"
5148   esac
5149   cat > $TMPC << EOF
5150 #define __MIDL_user_allocate_free_DEFINED__
5151 #include <inc/win2003/vss.h>
5152 int main(void) { return VSS_CTX_BACKUP; }
5153 EOF
5154   if compile_prog "$vss_win32_include" "" ; then
5155     guest_agent_with_vss="yes"
5156     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
5157     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
5158     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
5159   else
5160     if test "$vss_win32_sdk" != "" ; then
5161       echo "ERROR: Please download and install Microsoft VSS SDK:"
5162       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
5163       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
5164       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
5165       echo "ERROR: The headers are extracted in the directory \`inc'."
5166       feature_not_found "VSS support"
5167     fi
5168     guest_agent_with_vss="no"
5169   fi
5170 fi
5171
5172 ##########################################
5173 # lookup Windows platform SDK (if not specified)
5174 # The SDK is needed only to build .tlb (type library) file of guest agent
5175 # VSS provider from the source. It is usually unnecessary because the
5176 # pre-compiled .tlb file is included.
5177
5178 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
5179         test "$guest_agent_with_vss" = "yes" ; then
5180   if test -z "$win_sdk"; then
5181     programfiles="$PROGRAMFILES"
5182     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
5183     if test -n "$programfiles"; then
5184       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
5185     else
5186       feature_not_found "Windows SDK"
5187     fi
5188   elif test "$win_sdk" = "no"; then
5189     win_sdk=""
5190   fi
5191 fi
5192
5193 ##########################################
5194 # check if mingw environment provides a recent ntddscsi.h
5195 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
5196   cat > $TMPC << EOF
5197 #include <windows.h>
5198 #include <ntddscsi.h>
5199 int main(void) {
5200 #if !defined(IOCTL_SCSI_GET_ADDRESS)
5201 #error Missing required ioctl definitions
5202 #endif
5203   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
5204   return addr.Lun;
5205 }
5206 EOF
5207   if compile_prog "" "" ; then
5208     guest_agent_ntddscsi=yes
5209     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
5210   fi
5211 fi
5212
5213 ##########################################
5214 # virgl renderer probe
5215
5216 if test "$virglrenderer" != "no" ; then
5217   cat > $TMPC << EOF
5218 #include <virglrenderer.h>
5219 int main(void) { virgl_renderer_poll(); return 0; }
5220 EOF
5221   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
5222   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
5223   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
5224   if $pkg_config virglrenderer >/dev/null 2>&1 && \
5225      compile_prog "$virgl_cflags" "$virgl_libs" ; then
5226     virglrenderer="yes"
5227   else
5228     if test "$virglrenderer" = "yes" ; then
5229       feature_not_found "virglrenderer"
5230     fi
5231     virglrenderer="no"
5232   fi
5233 fi
5234
5235 ##########################################
5236 # capstone
5237
5238 case "$capstone" in
5239   "" | yes)
5240     if $pkg_config capstone; then
5241       capstone=system
5242     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
5243       capstone=git
5244     elif test -e "${source_path}/capstone/Makefile" ; then
5245       capstone=internal
5246     elif test -z "$capstone" ; then
5247       capstone=no
5248     else
5249       feature_not_found "capstone" "Install capstone devel or git submodule"
5250     fi
5251     ;;
5252
5253   system)
5254     if ! $pkg_config capstone; then
5255       feature_not_found "capstone" "Install capstone devel"
5256     fi
5257     ;;
5258 esac
5259
5260 case "$capstone" in
5261   git | internal)
5262     if test "$capstone" = git; then
5263       git_submodules="${git_submodules} capstone"
5264     fi
5265     mkdir -p capstone
5266     QEMU_CFLAGS="$QEMU_CFLAGS -I${source_path}/capstone/include"
5267     if test "$mingw32" = "yes"; then
5268       LIBCAPSTONE=capstone.lib
5269     else
5270       LIBCAPSTONE=libcapstone.a
5271     fi
5272     capstone_libs="-L$PWD/capstone -lcapstone"
5273     capstone_cflags="-I${source_path}/capstone/include"
5274     ;;
5275
5276   system)
5277     capstone_libs="$($pkg_config --libs capstone)"
5278     capstone_cflags="$($pkg_config --cflags capstone)"
5279     QEMU_CFLAGS="$QEMU_CFLAGS $($pkg_config --cflags capstone)"
5280     ;;
5281
5282   no)
5283     ;;
5284   *)
5285     error_exit "Unknown state for capstone: $capstone"
5286     ;;
5287 esac
5288
5289 ##########################################
5290 # check if we have fdatasync
5291
5292 fdatasync=no
5293 cat > $TMPC << EOF
5294 #include <unistd.h>
5295 int main(void) {
5296 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
5297 return fdatasync(0);
5298 #else
5299 #error Not supported
5300 #endif
5301 }
5302 EOF
5303 if compile_prog "" "" ; then
5304     fdatasync=yes
5305 fi
5306
5307 ##########################################
5308 # check if we have madvise
5309
5310 madvise=no
5311 cat > $TMPC << EOF
5312 #include <sys/types.h>
5313 #include <sys/mman.h>
5314 #include <stddef.h>
5315 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
5316 EOF
5317 if compile_prog "" "" ; then
5318     madvise=yes
5319 fi
5320
5321 ##########################################
5322 # check if we have posix_madvise
5323
5324 posix_madvise=no
5325 cat > $TMPC << EOF
5326 #include <sys/mman.h>
5327 #include <stddef.h>
5328 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
5329 EOF
5330 if compile_prog "" "" ; then
5331     posix_madvise=yes
5332 fi
5333
5334 ##########################################
5335 # check if we have posix_memalign()
5336
5337 posix_memalign=no
5338 cat > $TMPC << EOF
5339 #include <stdlib.h>
5340 int main(void) {
5341     void *p;
5342     return posix_memalign(&p, 8, 8);
5343 }
5344 EOF
5345 if compile_prog "" "" ; then
5346     posix_memalign=yes
5347 fi
5348
5349 ##########################################
5350 # check if we have posix_syslog
5351
5352 posix_syslog=no
5353 cat > $TMPC << EOF
5354 #include <syslog.h>
5355 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
5356 EOF
5357 if compile_prog "" "" ; then
5358     posix_syslog=yes
5359 fi
5360
5361 ##########################################
5362 # check if we have sem_timedwait
5363
5364 sem_timedwait=no
5365 cat > $TMPC << EOF
5366 #include <semaphore.h>
5367 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
5368 EOF
5369 if compile_prog "" "" ; then
5370     sem_timedwait=yes
5371 fi
5372
5373 ##########################################
5374 # check if we have strchrnul
5375
5376 strchrnul=no
5377 cat > $TMPC << EOF
5378 #include <string.h>
5379 int main(void);
5380 // Use a haystack that the compiler shouldn't be able to constant fold
5381 char *haystack = (char*)&main;
5382 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
5383 EOF
5384 if compile_prog "" "" ; then
5385     strchrnul=yes
5386 fi
5387
5388 #########################################
5389 # check if we have st_atim
5390
5391 st_atim=no
5392 cat > $TMPC << EOF
5393 #include <sys/stat.h>
5394 #include <stddef.h>
5395 int main(void) { return offsetof(struct stat, st_atim); }
5396 EOF
5397 if compile_prog "" "" ; then
5398     st_atim=yes
5399 fi
5400
5401 ##########################################
5402 # check if trace backend exists
5403
5404 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
5405 if test "$?" -ne 0 ; then
5406   error_exit "invalid trace backends" \
5407       "Please choose supported trace backends."
5408 fi
5409
5410 ##########################################
5411 # For 'ust' backend, test if ust headers are present
5412 if have_backend "ust"; then
5413   cat > $TMPC << EOF
5414 #include <lttng/tracepoint.h>
5415 int main(void) { return 0; }
5416 EOF
5417   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
5418     if $pkg_config lttng-ust --exists; then
5419       lttng_ust_libs=$($pkg_config --libs lttng-ust)
5420     else
5421       lttng_ust_libs="-llttng-ust -ldl"
5422     fi
5423     if $pkg_config liburcu-bp --exists; then
5424       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
5425     else
5426       urcu_bp_libs="-lurcu-bp"
5427     fi
5428
5429     LIBS="$lttng_ust_libs $urcu_bp_libs $LIBS"
5430   else
5431     error_exit "Trace backend 'ust' missing lttng-ust header files"
5432   fi
5433 fi
5434
5435 ##########################################
5436 # For 'dtrace' backend, test if 'dtrace' command is present
5437 if have_backend "dtrace"; then
5438   if ! has 'dtrace' ; then
5439     error_exit "dtrace command is not found in PATH $PATH"
5440   fi
5441   trace_backend_stap="no"
5442   if has 'stap' ; then
5443     trace_backend_stap="yes"
5444   fi
5445 fi
5446
5447 ##########################################
5448 # check and set a backend for coroutine
5449
5450 # We prefer ucontext, but it's not always possible. The fallback
5451 # is sigcontext. On Windows the only valid backend is the Windows
5452 # specific one.
5453
5454 ucontext_works=no
5455 if test "$darwin" != "yes"; then
5456   cat > $TMPC << EOF
5457 #include <ucontext.h>
5458 #ifdef __stub_makecontext
5459 #error Ignoring glibc stub makecontext which will always fail
5460 #endif
5461 int main(void) { makecontext(0, 0, 0); return 0; }
5462 EOF
5463   if compile_prog "" "" ; then
5464     ucontext_works=yes
5465   fi
5466 fi
5467
5468 if test "$coroutine" = ""; then
5469   if test "$mingw32" = "yes"; then
5470     coroutine=win32
5471   elif test "$ucontext_works" = "yes"; then
5472     coroutine=ucontext
5473   else
5474     coroutine=sigaltstack
5475   fi
5476 else
5477   case $coroutine in
5478   windows)
5479     if test "$mingw32" != "yes"; then
5480       error_exit "'windows' coroutine backend only valid for Windows"
5481     fi
5482     # Unfortunately the user visible backend name doesn't match the
5483     # coroutine-*.c filename for this case, so we have to adjust it here.
5484     coroutine=win32
5485     ;;
5486   ucontext)
5487     if test "$ucontext_works" != "yes"; then
5488       feature_not_found "ucontext"
5489     fi
5490     ;;
5491   sigaltstack)
5492     if test "$mingw32" = "yes"; then
5493       error_exit "only the 'windows' coroutine backend is valid for Windows"
5494     fi
5495     ;;
5496   *)
5497     error_exit "unknown coroutine backend $coroutine"
5498     ;;
5499   esac
5500 fi
5501
5502 if test "$coroutine_pool" = ""; then
5503   coroutine_pool=yes
5504 fi
5505
5506 if test "$debug_stack_usage" = "yes"; then
5507   if test "$coroutine_pool" = "yes"; then
5508     echo "WARN: disabling coroutine pool for stack usage debugging"
5509     coroutine_pool=no
5510   fi
5511 fi
5512
5513 ##################################################
5514 # SafeStack
5515
5516
5517 if test "$safe_stack" = "yes"; then
5518 cat > $TMPC << EOF
5519 int main(int argc, char *argv[])
5520 {
5521 #if ! __has_feature(safe_stack)
5522 #error SafeStack Disabled
5523 #endif
5524     return 0;
5525 }
5526 EOF
5527   flag="-fsanitize=safe-stack"
5528   # Check that safe-stack is supported and enabled.
5529   if compile_prog "-Werror $flag" "$flag"; then
5530     # Flag needed both at compilation and at linking
5531     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
5532     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
5533   else
5534     error_exit "SafeStack not supported by your compiler"
5535   fi
5536   if test "$coroutine" != "ucontext"; then
5537     error_exit "SafeStack is only supported by the coroutine backend ucontext"
5538   fi
5539 else
5540 cat > $TMPC << EOF
5541 int main(int argc, char *argv[])
5542 {
5543 #if defined(__has_feature)
5544 #if __has_feature(safe_stack)
5545 #error SafeStack Enabled
5546 #endif
5547 #endif
5548     return 0;
5549 }
5550 EOF
5551 if test "$safe_stack" = "no"; then
5552   # Make sure that safe-stack is disabled
5553   if ! compile_prog "-Werror" ""; then
5554     # SafeStack was already enabled, try to explicitly remove the feature
5555     flag="-fno-sanitize=safe-stack"
5556     if ! compile_prog "-Werror $flag" "$flag"; then
5557       error_exit "Configure cannot disable SafeStack"
5558     fi
5559     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
5560     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
5561   fi
5562 else # "$safe_stack" = ""
5563   # Set safe_stack to yes or no based on pre-existing flags
5564   if compile_prog "-Werror" ""; then
5565     safe_stack="no"
5566   else
5567     safe_stack="yes"
5568     if test "$coroutine" != "ucontext"; then
5569       error_exit "SafeStack is only supported by the coroutine backend ucontext"
5570     fi
5571   fi
5572 fi
5573 fi
5574
5575 ##########################################
5576 # check if we have open_by_handle_at
5577
5578 open_by_handle_at=no
5579 cat > $TMPC << EOF
5580 #include <fcntl.h>
5581 #if !defined(AT_EMPTY_PATH)
5582 # error missing definition
5583 #else
5584 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
5585 #endif
5586 EOF
5587 if compile_prog "" "" ; then
5588     open_by_handle_at=yes
5589 fi
5590
5591 ########################################
5592 # check if we have linux/magic.h
5593
5594 linux_magic_h=no
5595 cat > $TMPC << EOF
5596 #include <linux/magic.h>
5597 int main(void) {
5598   return 0;
5599 }
5600 EOF
5601 if compile_prog "" "" ; then
5602     linux_magic_h=yes
5603 fi
5604
5605 ########################################
5606 # check if we have valgrind/valgrind.h
5607
5608 valgrind_h=no
5609 cat > $TMPC << EOF
5610 #include <valgrind/valgrind.h>
5611 int main(void) {
5612   return 0;
5613 }
5614 EOF
5615 if compile_prog "" "" ; then
5616     valgrind_h=yes
5617 fi
5618
5619 ########################################
5620 # check if environ is declared
5621
5622 has_environ=no
5623 cat > $TMPC << EOF
5624 #include <unistd.h>
5625 int main(void) {
5626     environ = 0;
5627     return 0;
5628 }
5629 EOF
5630 if compile_prog "" "" ; then
5631     has_environ=yes
5632 fi
5633
5634 ########################################
5635 # check if cpuid.h is usable.
5636
5637 cat > $TMPC << EOF
5638 #include <cpuid.h>
5639 int main(void) {
5640     unsigned a, b, c, d;
5641     int max = __get_cpuid_max(0, 0);
5642
5643     if (max >= 1) {
5644         __cpuid(1, a, b, c, d);
5645     }
5646
5647     if (max >= 7) {
5648         __cpuid_count(7, 0, a, b, c, d);
5649     }
5650
5651     return 0;
5652 }
5653 EOF
5654 if compile_prog "" "" ; then
5655     cpuid_h=yes
5656 fi
5657
5658 ##########################################
5659 # avx2 optimization requirement check
5660 #
5661 # There is no point enabling this if cpuid.h is not usable,
5662 # since we won't be able to select the new routines.
5663
5664 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
5665   cat > $TMPC << EOF
5666 #pragma GCC push_options
5667 #pragma GCC target("avx2")
5668 #include <cpuid.h>
5669 #include <immintrin.h>
5670 static int bar(void *a) {
5671     __m256i x = *(__m256i *)a;
5672     return _mm256_testz_si256(x, x);
5673 }
5674 int main(int argc, char *argv[]) { return bar(argv[0]); }
5675 EOF
5676   if compile_object "" ; then
5677     avx2_opt="yes"
5678   else
5679     avx2_opt="no"
5680   fi
5681 fi
5682
5683 ##########################################
5684 # avx512f optimization requirement check
5685 #
5686 # There is no point enabling this if cpuid.h is not usable,
5687 # since we won't be able to select the new routines.
5688 # by default, it is turned off.
5689 # if user explicitly want to enable it, check environment
5690
5691 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
5692   cat > $TMPC << EOF
5693 #pragma GCC push_options
5694 #pragma GCC target("avx512f")
5695 #include <cpuid.h>
5696 #include <immintrin.h>
5697 static int bar(void *a) {
5698     __m512i x = *(__m512i *)a;
5699     return _mm512_test_epi64_mask(x, x);
5700 }
5701 int main(int argc, char *argv[])
5702 {
5703         return bar(argv[0]);
5704 }
5705 EOF
5706   if ! compile_object "" ; then
5707     avx512f_opt="no"
5708   fi
5709 else
5710   avx512f_opt="no"
5711 fi
5712
5713 ########################################
5714 # check if __[u]int128_t is usable.
5715
5716 int128=no
5717 cat > $TMPC << EOF
5718 __int128_t a;
5719 __uint128_t b;
5720 int main (void) {
5721   a = a + b;
5722   b = a * b;
5723   a = a * a;
5724   return 0;
5725 }
5726 EOF
5727 if compile_prog "" "" ; then
5728     int128=yes
5729 fi
5730
5731 #########################################
5732 # See if 128-bit atomic operations are supported.
5733
5734 atomic128=no
5735 if test "$int128" = "yes"; then
5736   cat > $TMPC << EOF
5737 int main(void)
5738 {
5739   unsigned __int128 x = 0, y = 0;
5740   y = __atomic_load_16(&x, 0);
5741   __atomic_store_16(&x, y, 0);
5742   __atomic_compare_exchange_16(&x, &y, x, 0, 0, 0);
5743   return 0;
5744 }
5745 EOF
5746   if compile_prog "" "" ; then
5747     atomic128=yes
5748   fi
5749 fi
5750
5751 cmpxchg128=no
5752 if test "$int128" = yes && test "$atomic128" = no; then
5753   cat > $TMPC << EOF
5754 int main(void)
5755 {
5756   unsigned __int128 x = 0, y = 0;
5757   __sync_val_compare_and_swap_16(&x, y, x);
5758   return 0;
5759 }
5760 EOF
5761   if compile_prog "" "" ; then
5762     cmpxchg128=yes
5763   fi
5764 fi
5765
5766 #########################################
5767 # See if 64-bit atomic operations are supported.
5768 # Note that without __atomic builtins, we can only
5769 # assume atomic loads/stores max at pointer size.
5770
5771 cat > $TMPC << EOF
5772 #include <stdint.h>
5773 int main(void)
5774 {
5775   uint64_t x = 0, y = 0;
5776 #ifdef __ATOMIC_RELAXED
5777   y = __atomic_load_8(&x, 0);
5778   __atomic_store_8(&x, y, 0);
5779   __atomic_compare_exchange_8(&x, &y, x, 0, 0, 0);
5780   __atomic_exchange_8(&x, y, 0);
5781   __atomic_fetch_add_8(&x, y, 0);
5782 #else
5783   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
5784   __sync_lock_test_and_set(&x, y);
5785   __sync_val_compare_and_swap(&x, y, 0);
5786   __sync_fetch_and_add(&x, y);
5787 #endif
5788   return 0;
5789 }
5790 EOF
5791 if compile_prog "" "" ; then
5792   atomic64=yes
5793 fi
5794
5795 #########################################
5796 # See if --dynamic-list is supported by the linker
5797 ld_dynamic_list="no"
5798 if test "$static" = "no" ; then
5799     cat > $TMPTXT <<EOF
5800 {
5801   foo;
5802 };
5803 EOF
5804
5805     cat > $TMPC <<EOF
5806 #include <stdio.h>
5807 void foo(void);
5808
5809 void foo(void)
5810 {
5811   printf("foo\n");
5812 }
5813
5814 int main(void)
5815 {
5816   foo();
5817   return 0;
5818 }
5819 EOF
5820
5821     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
5822         ld_dynamic_list="yes"
5823     fi
5824 fi
5825
5826 #########################################
5827 # See if -exported_symbols_list is supported by the linker
5828
5829 ld_exported_symbols_list="no"
5830 if test "$static" = "no" ; then
5831     cat > $TMPTXT <<EOF
5832   _foo
5833 EOF
5834
5835     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
5836         ld_exported_symbols_list="yes"
5837     fi
5838 fi
5839
5840 if  test "$plugins" = "yes" &&
5841     test "$ld_dynamic_list" = "no" &&
5842     test "$ld_exported_symbols_list" = "no" ; then
5843   error_exit \
5844       "Plugin support requires dynamic linking and specifying a set of symbols " \
5845       "that are exported to plugins. Unfortunately your linker doesn't " \
5846       "support the flag (--dynamic-list or -exported_symbols_list) used " \
5847       "for this purpose. You can't build with --static."
5848 fi
5849
5850 ########################################
5851 # See if __attribute__((alias)) is supported.
5852 # This false for Xcode 9, but has been remedied for Xcode 10.
5853 # Unfortunately, travis uses Xcode 9 by default.
5854
5855 attralias=no
5856 cat > $TMPC << EOF
5857 int x = 1;
5858 extern const int y __attribute__((alias("x")));
5859 int main(void) { return 0; }
5860 EOF
5861 if compile_prog "" "" ; then
5862     attralias=yes
5863 fi
5864
5865 ########################################
5866 # check if getauxval is available.
5867
5868 getauxval=no
5869 cat > $TMPC << EOF
5870 #include <sys/auxv.h>
5871 int main(void) {
5872   return getauxval(AT_HWCAP) == 0;
5873 }
5874 EOF
5875 if compile_prog "" "" ; then
5876     getauxval=yes
5877 fi
5878
5879 ########################################
5880 # check if ccache is interfering with
5881 # semantic analysis of macros
5882
5883 unset CCACHE_CPP2
5884 ccache_cpp2=no
5885 cat > $TMPC << EOF
5886 static const int Z = 1;
5887 #define fn() ({ Z; })
5888 #define TAUT(X) ((X) == Z)
5889 #define PAREN(X, Y) (X == Y)
5890 #define ID(X) (X)
5891 int main(int argc, char *argv[])
5892 {
5893     int x = 0, y = 0;
5894     x = ID(x);
5895     x = fn();
5896     fn();
5897     if (PAREN(x, y)) return 0;
5898     if (TAUT(Z)) return 0;
5899     return 0;
5900 }
5901 EOF
5902
5903 if ! compile_object "-Werror"; then
5904     ccache_cpp2=yes
5905 fi
5906
5907 #################################################
5908 # clang does not support glibc + FORTIFY_SOURCE.
5909
5910 if test "$fortify_source" != "no"; then
5911   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
5912     fortify_source="no";
5913   elif test -n "$cxx" && has $cxx &&
5914        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
5915     fortify_source="no";
5916   else
5917     fortify_source="yes"
5918   fi
5919 fi
5920
5921 ###############################################
5922 # Check if copy_file_range is provided by glibc
5923 have_copy_file_range=no
5924 cat > $TMPC << EOF
5925 #include <unistd.h>
5926 int main(void) {
5927   copy_file_range(0, NULL, 0, NULL, 0, 0);
5928   return 0;
5929 }
5930 EOF
5931 if compile_prog "" "" ; then
5932     have_copy_file_range=yes
5933 fi
5934
5935 ##########################################
5936 # check if struct fsxattr is available via linux/fs.h
5937
5938 have_fsxattr=no
5939 cat > $TMPC << EOF
5940 #include <linux/fs.h>
5941 struct fsxattr foo;
5942 int main(void) {
5943   return 0;
5944 }
5945 EOF
5946 if compile_prog "" "" ; then
5947     have_fsxattr=yes
5948 fi
5949
5950 ##########################################
5951 # check for usable membarrier system call
5952 if test "$membarrier" = "yes"; then
5953     have_membarrier=no
5954     if test "$mingw32" = "yes" ; then
5955         have_membarrier=yes
5956     elif test "$linux" = "yes" ; then
5957         cat > $TMPC << EOF
5958     #include <linux/membarrier.h>
5959     #include <sys/syscall.h>
5960     #include <unistd.h>
5961     #include <stdlib.h>
5962     int main(void) {
5963         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
5964         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
5965         exit(0);
5966     }
5967 EOF
5968         if compile_prog "" "" ; then
5969             have_membarrier=yes
5970         fi
5971     fi
5972     if test "$have_membarrier" = "no"; then
5973       feature_not_found "membarrier" "membarrier system call not available"
5974     fi
5975 else
5976     # Do not enable it by default even for Mingw32, because it doesn't
5977     # work on Wine.
5978     membarrier=no
5979 fi
5980
5981 ##########################################
5982 # check if rtnetlink.h exists and is useful
5983 have_rtnetlink=no
5984 cat > $TMPC << EOF
5985 #include <linux/rtnetlink.h>
5986 int main(void) {
5987   return IFLA_PROTO_DOWN;
5988 }
5989 EOF
5990 if compile_prog "" "" ; then
5991     have_rtnetlink=yes
5992 fi
5993
5994 ##########################################
5995 # check for usable AF_VSOCK environment
5996 have_af_vsock=no
5997 cat > $TMPC << EOF
5998 #include <errno.h>
5999 #include <sys/types.h>
6000 #include <sys/socket.h>
6001 #if !defined(AF_VSOCK)
6002 # error missing AF_VSOCK flag
6003 #endif
6004 #include <linux/vm_sockets.h>
6005 int main(void) {
6006     int sock, ret;
6007     struct sockaddr_vm svm;
6008     socklen_t len = sizeof(svm);
6009     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
6010     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
6011     if ((ret == -1) && (errno == ENOTCONN)) {
6012         return 0;
6013     }
6014     return -1;
6015 }
6016 EOF
6017 if compile_prog "" "" ; then
6018     have_af_vsock=yes
6019 fi
6020
6021 ##########################################
6022 # check for usable AF_ALG environment
6023 have_afalg=no
6024 cat > $TMPC << EOF
6025 #include <errno.h>
6026 #include <sys/types.h>
6027 #include <sys/socket.h>
6028 #include <linux/if_alg.h>
6029 int main(void) {
6030     int sock;
6031     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
6032     return sock;
6033 }
6034 EOF
6035 if compile_prog "" "" ; then
6036     have_afalg=yes
6037 fi
6038 if test "$crypto_afalg" = "yes"
6039 then
6040     if test "$have_afalg" != "yes"
6041     then
6042         error_exit "AF_ALG requested but could not be detected"
6043     fi
6044 fi
6045
6046
6047 #################################################
6048 # Check to see if we have the Hypervisor framework
6049 if [ "$darwin" = "yes" ] ; then
6050   cat > $TMPC << EOF
6051 #include <Hypervisor/hv.h>
6052 int main() { return 0;}
6053 EOF
6054   if ! compile_object ""; then
6055     hvf='no'
6056   else
6057     hvf='yes'
6058     QEMU_LDFLAGS="-framework Hypervisor $QEMU_LDFLAGS"
6059   fi
6060 fi
6061
6062 ##########################################
6063 # check for sysmacros.h
6064
6065 have_sysmacros=no
6066 cat > $TMPC << EOF
6067 #include <sys/sysmacros.h>
6068 int main(void) {
6069     return makedev(0, 0);
6070 }
6071 EOF
6072 if compile_prog "" "" ; then
6073     have_sysmacros=yes
6074 fi
6075
6076 ##########################################
6077 # check for _Static_assert()
6078
6079 have_static_assert=no
6080 cat > $TMPC << EOF
6081 _Static_assert(1, "success");
6082 int main(void) {
6083     return 0;
6084 }
6085 EOF
6086 if compile_prog "" "" ; then
6087     have_static_assert=yes
6088 fi
6089
6090 ##########################################
6091 # check for utmpx.h, it is missing e.g. on OpenBSD
6092
6093 have_utmpx=no
6094 cat > $TMPC << EOF
6095 #include <utmpx.h>
6096 struct utmpx user_info;
6097 int main(void) {
6098     return 0;
6099 }
6100 EOF
6101 if compile_prog "" "" ; then
6102     have_utmpx=yes
6103 fi
6104
6105 ##########################################
6106 # check for getrandom()
6107
6108 have_getrandom=no
6109 cat > $TMPC << EOF
6110 #include <sys/random.h>
6111 int main(void) {
6112     return getrandom(0, 0, GRND_NONBLOCK);
6113 }
6114 EOF
6115 if compile_prog "" "" ; then
6116     have_getrandom=yes
6117 fi
6118
6119 ##########################################
6120 # checks for sanitizers
6121
6122 have_asan=no
6123 have_ubsan=no
6124 have_asan_iface_h=no
6125 have_asan_iface_fiber=no
6126
6127 if test "$sanitizers" = "yes" ; then
6128   write_c_skeleton
6129   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
6130       have_asan=yes
6131   fi
6132
6133   # we could use a simple skeleton for flags checks, but this also
6134   # detect the static linking issue of ubsan, see also:
6135   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
6136   cat > $TMPC << EOF
6137 #include <stdlib.h>
6138 int main(void) {
6139     void *tmp = malloc(10);
6140     if (tmp != NULL) {
6141         return *(int *)(tmp + 2);
6142     }
6143     return 1;
6144 }
6145 EOF
6146   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
6147       have_ubsan=yes
6148   fi
6149
6150   if check_include "sanitizer/asan_interface.h" ; then
6151       have_asan_iface_h=yes
6152   fi
6153
6154   cat > $TMPC << EOF
6155 #include <sanitizer/asan_interface.h>
6156 int main(void) {
6157   __sanitizer_start_switch_fiber(0, 0, 0);
6158   return 0;
6159 }
6160 EOF
6161   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
6162       have_asan_iface_fiber=yes
6163   fi
6164 fi
6165
6166 ##########################################
6167 # checks for fuzzer
6168 if test "$fuzzing" = "yes" ; then
6169   write_c_fuzzer_skeleton
6170   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
6171     have_fuzzer=yes
6172   else
6173     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
6174     exit 1
6175   fi
6176 fi
6177
6178 # Thread sanitizer is, for now, much noisier than the other sanitizers;
6179 # keep it separate until that is not the case.
6180 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
6181   error_exit "TSAN is not supported with other sanitiziers."
6182 fi
6183 have_tsan=no
6184 have_tsan_iface_fiber=no
6185 if test "$tsan" = "yes" ; then
6186   write_c_skeleton
6187   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
6188       have_tsan=yes
6189   fi
6190   cat > $TMPC << EOF
6191 #include <sanitizer/tsan_interface.h>
6192 int main(void) {
6193   __tsan_create_fiber(0);
6194   return 0;
6195 }
6196 EOF
6197   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
6198       have_tsan_iface_fiber=yes
6199   fi
6200 fi
6201
6202 ##########################################
6203 # check for libpmem
6204
6205 if test "$libpmem" != "no"; then
6206         if $pkg_config --exists "libpmem"; then
6207                 libpmem="yes"
6208                 libpmem_libs=$($pkg_config --libs libpmem)
6209                 libpmem_cflags=$($pkg_config --cflags libpmem)
6210                 QEMU_CFLAGS="$QEMU_CFLAGS $libpmem_cflags"
6211         else
6212                 if test "$libpmem" = "yes" ; then
6213                         feature_not_found "libpmem" "Install nvml or pmdk"
6214                 fi
6215                 libpmem="no"
6216         fi
6217 fi
6218
6219 ##########################################
6220 # check for libdaxctl
6221
6222 if test "$libdaxctl" != "no"; then
6223         if $pkg_config --atleast-version=57 "libdaxctl"; then
6224                 libdaxctl="yes"
6225                 libdaxctl_libs=$($pkg_config --libs libdaxctl)
6226                 libdaxctl_cflags=$($pkg_config --cflags libdaxctl)
6227                 QEMU_CFLAGS="$QEMU_CFLAGS $libdaxctl_cflags"
6228         else
6229                 if test "$libdaxctl" = "yes" ; then
6230                         feature_not_found "libdaxctl" "Install libdaxctl"
6231                 fi
6232                 libdaxctl="no"
6233         fi
6234 fi
6235
6236 ##########################################
6237 # check for slirp
6238
6239 # slirp is only required when building softmmu targets
6240 if test -z "$slirp" -a "$softmmu" != "yes" ; then
6241     slirp="no"
6242 fi
6243
6244 case "$slirp" in
6245   "" | yes)
6246     if $pkg_config slirp; then
6247       slirp=system
6248     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
6249       slirp=git
6250     elif test -e "${source_path}/slirp/Makefile" ; then
6251       slirp=internal
6252     elif test -z "$slirp" ; then
6253       slirp=no
6254     else
6255       feature_not_found "slirp" "Install slirp devel or git submodule"
6256     fi
6257     ;;
6258
6259   system)
6260     if ! $pkg_config slirp; then
6261       feature_not_found "slirp" "Install slirp devel"
6262     fi
6263     ;;
6264 esac
6265
6266 case "$slirp" in
6267   git | internal)
6268     if test "$slirp" = git; then
6269       git_submodules="${git_submodules} slirp"
6270     fi
6271     mkdir -p slirp
6272     slirp_cflags="-I${source_path}/slirp/src -I$PWD/slirp/src"
6273     slirp_libs="-L$PWD/slirp -lslirp"
6274     if test "$mingw32" = "yes" ; then
6275       slirp_libs="$slirp_libs -lws2_32 -liphlpapi"
6276     fi
6277     ;;
6278
6279   system)
6280     slirp_version=$($pkg_config --modversion slirp 2>/dev/null)
6281     slirp_cflags=$($pkg_config --cflags slirp 2>/dev/null)
6282     slirp_libs=$($pkg_config --libs slirp 2>/dev/null)
6283     ;;
6284
6285   no)
6286     ;;
6287   *)
6288     error_exit "Unknown state for slirp: $slirp"
6289     ;;
6290 esac
6291
6292 ##########################################
6293 # check for usable __NR_keyctl syscall
6294
6295 if test "$linux" = "yes" ; then
6296
6297     have_keyring=no
6298     cat > $TMPC << EOF
6299 #include <errno.h>
6300 #include <asm/unistd.h>
6301 #include <linux/keyctl.h>
6302 #include <unistd.h>
6303 int main(void) {
6304     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
6305 }
6306 EOF
6307     if compile_prog "" "" ; then
6308         have_keyring=yes
6309     fi
6310 fi
6311 if test "$secret_keyring" != "no"
6312 then
6313     if test "$have_keyring" = "yes"
6314     then
6315         secret_keyring=yes
6316     else
6317         if test "$secret_keyring" = "yes"
6318         then
6319             error_exit "syscall __NR_keyctl requested, \
6320 but not implemented on your system"
6321         else
6322             secret_keyring=no
6323         fi
6324     fi
6325 fi
6326
6327 ##########################################
6328 # check for usable keyutils.h
6329
6330 if test "$linux" = "yes" ; then
6331
6332     have_keyutils=no
6333     cat > $TMPC << EOF
6334 #include <errno.h>
6335 #include <asm/unistd.h>
6336 #include <unistd.h>
6337 #include <sys/types.h>
6338 #include <keyutils.h>
6339 int main(void) {
6340     return request_key("user", NULL, NULL, 0);
6341 }
6342 EOF
6343     if compile_prog "" "-lkeyutils"; then
6344         have_keyutils=yes
6345     fi
6346 fi
6347
6348
6349 ##########################################
6350 # End of CC checks
6351 # After here, no more $cc or $ld runs
6352
6353 write_c_skeleton
6354
6355 if test "$gcov" = "yes" ; then
6356   :
6357 elif test "$fortify_source" = "yes" ; then
6358   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
6359   debug=no
6360 fi
6361 if test "$debug_info" = "yes"; then
6362   CFLAGS="-g $CFLAGS"
6363   LDFLAGS="-g $LDFLAGS"
6364 fi
6365 if test "$debug" = "no"; then
6366   CFLAGS="-O2 $CFLAGS"
6367 fi
6368
6369 case "$ARCH" in
6370 alpha)
6371   # Ensure there's only a single GP
6372   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
6373 ;;
6374 esac
6375
6376 if test "$gprof" = "yes" ; then
6377   QEMU_CFLAGS="-p $QEMU_CFLAGS"
6378   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
6379 fi
6380
6381 if test "$have_asan" = "yes"; then
6382   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
6383   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
6384   if test "$have_asan_iface_h" = "no" ; then
6385       echo "ASAN build enabled, but ASAN header missing." \
6386            "Without code annotation, the report may be inferior."
6387   elif test "$have_asan_iface_fiber" = "no" ; then
6388       echo "ASAN build enabled, but ASAN header is too old." \
6389            "Without code annotation, the report may be inferior."
6390   fi
6391 fi
6392 if test "$have_tsan" = "yes" ; then
6393   if test "$have_tsan_iface_fiber" = "yes" ; then
6394     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
6395     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
6396   else
6397     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
6398   fi
6399 elif test "$tsan" = "yes" ; then
6400   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
6401 fi
6402 if test "$have_ubsan" = "yes"; then
6403   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
6404   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
6405 fi
6406
6407 ##########################################
6408 # Do we have libnfs
6409 if test "$libnfs" != "no" ; then
6410   if $pkg_config --atleast-version=1.9.3 libnfs; then
6411     libnfs="yes"
6412     libnfs_libs=$($pkg_config --libs libnfs)
6413   else
6414     if test "$libnfs" = "yes" ; then
6415       feature_not_found "libnfs" "Install libnfs devel >= 1.9.3"
6416     fi
6417     libnfs="no"
6418   fi
6419 fi
6420
6421 ##########################################
6422 # Do we have libudev
6423 if test "$libudev" != "no" ; then
6424   if $pkg_config libudev && test "$static" != "yes"; then
6425     libudev="yes"
6426     libudev_libs=$($pkg_config --libs libudev)
6427   else
6428     libudev="no"
6429   fi
6430 fi
6431
6432 # Now we've finished running tests it's OK to add -Werror to the compiler flags
6433 if test "$werror" = "yes"; then
6434     QEMU_CFLAGS="-Werror $QEMU_CFLAGS"
6435 fi
6436
6437 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
6438 if test "$solaris" = "no" && test "$tsan" = "no"; then
6439     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
6440         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
6441     fi
6442 fi
6443
6444 # test if pod2man has --utf8 option
6445 if pod2man --help | grep -q utf8; then
6446     POD2MAN="pod2man --utf8"
6447 else
6448     POD2MAN="pod2man"
6449 fi
6450
6451 # Use ASLR, no-SEH and DEP if available
6452 if test "$mingw32" = "yes" ; then
6453     for flag in --dynamicbase --no-seh --nxcompat; do
6454         if ld_has $flag ; then
6455             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
6456         fi
6457     done
6458 fi
6459
6460 # Disable OpenBSD W^X if available
6461 if test "$tcg" = "yes" && test "$targetos" = "OpenBSD"; then
6462     cat > $TMPC <<EOF
6463     int main(void) { return 0; }
6464 EOF
6465     wx_ldflags="-Wl,-z,wxneeded"
6466     if compile_prog "" "$wx_ldflags"; then
6467         QEMU_LDFLAGS="$QEMU_LDFLAGS $wx_ldflags"
6468     fi
6469 fi
6470
6471 qemu_confdir=$sysconfdir$confsuffix
6472 qemu_moddir=$libdir$confsuffix
6473 qemu_datadir=$datadir$confsuffix
6474 qemu_localedir="$datadir/locale"
6475 qemu_icondir="$datadir/icons"
6476 qemu_desktopdir="$datadir/applications"
6477
6478 # We can only support ivshmem if we have eventfd
6479 if [ "$eventfd" = "yes" ]; then
6480   ivshmem=yes
6481 fi
6482
6483 if test "$softmmu" = yes ; then
6484   if test "$linux" = yes; then
6485     if test "$virtfs" != no && test "$cap_ng" = yes && test "$attr" = yes ; then
6486       virtfs=yes
6487     else
6488       if test "$virtfs" = yes; then
6489         error_exit "VirtFS requires libcap-ng devel and libattr devel"
6490       fi
6491       virtfs=no
6492     fi
6493     if test "$mpath" != no && test "$mpathpersist" = yes ; then
6494       mpath=yes
6495     else
6496       if test "$mpath" = yes; then
6497         error_exit "Multipath requires libmpathpersist devel"
6498       fi
6499       mpath=no
6500     fi
6501   else
6502     if test "$virtfs" = yes; then
6503       error_exit "VirtFS is supported only on Linux"
6504     fi
6505     virtfs=no
6506     if test "$mpath" = yes; then
6507       error_exit "Multipath is supported only on Linux"
6508     fi
6509     mpath=no
6510   fi
6511 fi
6512
6513 # Probe for guest agent support/options
6514
6515 if [ "$guest_agent" != "no" ]; then
6516   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
6517       guest_agent=no
6518   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
6519       guest_agent=yes
6520   elif [ "$guest_agent" != yes ]; then
6521       guest_agent=no
6522   else
6523       error_exit "Guest agent is not supported on this platform"
6524   fi
6525 fi
6526
6527 # Guest agent Window MSI  package
6528
6529 if test "$guest_agent" != yes; then
6530   if test "$guest_agent_msi" = yes; then
6531     error_exit "MSI guest agent package requires guest agent enabled"
6532   fi
6533   guest_agent_msi=no
6534 elif test "$mingw32" != "yes"; then
6535   if test "$guest_agent_msi" = "yes"; then
6536     error_exit "MSI guest agent package is available only for MinGW Windows cross-compilation"
6537   fi
6538   guest_agent_msi=no
6539 elif ! has wixl; then
6540   if test "$guest_agent_msi" = "yes"; then
6541     error_exit "MSI guest agent package requires wixl tool installed ( usually from msitools package )"
6542   fi
6543   guest_agent_msi=no
6544 else
6545   # we support qemu-ga, mingw32, and wixl: default to MSI enabled if it wasn't
6546   # disabled explicitly
6547   if test "$guest_agent_msi" != "no"; then
6548     guest_agent_msi=yes
6549   fi
6550 fi
6551
6552 if test "$guest_agent_msi" = "yes"; then
6553   if test "$guest_agent_with_vss" = "yes"; then
6554     QEMU_GA_MSI_WITH_VSS="-D InstallVss"
6555   fi
6556
6557   if test "$QEMU_GA_MANUFACTURER" = ""; then
6558     QEMU_GA_MANUFACTURER=QEMU
6559   fi
6560
6561   if test "$QEMU_GA_DISTRO" = ""; then
6562     QEMU_GA_DISTRO=Linux
6563   fi
6564
6565   if test "$QEMU_GA_VERSION" = ""; then
6566       QEMU_GA_VERSION=$(cat $source_path/VERSION)
6567   fi
6568
6569   QEMU_GA_MSI_MINGW_DLL_PATH="-D Mingw_dlls=$($pkg_config --variable=prefix glib-2.0)/bin"
6570
6571   case "$cpu" in
6572   x86_64)
6573     QEMU_GA_MSI_ARCH="-a x64 -D Arch=64"
6574     ;;
6575   i386)
6576     QEMU_GA_MSI_ARCH="-D Arch=32"
6577     ;;
6578   *)
6579     error_exit "CPU $cpu not supported for building installation package"
6580     ;;
6581   esac
6582 fi
6583
6584 # Mac OS X ships with a broken assembler
6585 roms=
6586 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
6587         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
6588         test "$softmmu" = yes ; then
6589     # Different host OS linkers have different ideas about the name of the ELF
6590     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
6591     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
6592     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
6593         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
6594             ld_i386_emulation="$emu"
6595             roms="optionrom"
6596             break
6597         fi
6598     done
6599 fi
6600
6601 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
6602 if test "$cpu" = "s390x" ; then
6603   write_c_skeleton
6604   if compile_prog "-march=z900" ""; then
6605     roms="$roms s390-ccw"
6606     # SLOF is required for building the s390-ccw firmware on s390x,
6607     # since it is using the libnet code from SLOF for network booting.
6608     if test -e "${source_path}/.git" ; then
6609       git_submodules="${git_submodules} roms/SLOF"
6610     fi
6611   fi
6612 fi
6613
6614 # Check that the C++ compiler exists and works with the C compiler.
6615 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
6616 if has $cxx; then
6617     cat > $TMPC <<EOF
6618 int c_function(void);
6619 int main(void) { return c_function(); }
6620 EOF
6621
6622     compile_object
6623
6624     cat > $TMPCXX <<EOF
6625 extern "C" {
6626    int c_function(void);
6627 }
6628 int c_function(void) { return 42; }
6629 EOF
6630
6631     update_cxxflags
6632
6633     if do_cxx $CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
6634         # C++ compiler $cxx works ok with C compiler $cc
6635         :
6636     else
6637         echo "C++ compiler $cxx does not work with C compiler $cc"
6638         echo "Disabling C++ specific optional code"
6639         cxx=
6640     fi
6641 else
6642     echo "No C++ compiler available; disabling C++ specific optional code"
6643     cxx=
6644 fi
6645
6646 echo_version() {
6647     if test "$1" = "yes" ; then
6648         echo "($2)"
6649     fi
6650 }
6651
6652 # prepend ftd flags after all config tests are done
6653 QEMU_CFLAGS="$fdt_cflags $QEMU_CFLAGS"
6654 QEMU_LDFLAGS="$fdt_ldflags $QEMU_LDFLAGS"
6655
6656 config_host_mak="config-host.mak"
6657
6658 echo "# Automatically generated by configure - do not modify" >config-all-disas.mak
6659
6660 echo "# Automatically generated by configure - do not modify" > $config_host_mak
6661 echo >> $config_host_mak
6662
6663 echo all: >> $config_host_mak
6664 echo "prefix=$prefix" >> $config_host_mak
6665 echo "bindir=$bindir" >> $config_host_mak
6666 echo "libdir=$libdir" >> $config_host_mak
6667 echo "libexecdir=$libexecdir" >> $config_host_mak
6668 echo "includedir=$includedir" >> $config_host_mak
6669 echo "mandir=$mandir" >> $config_host_mak
6670 echo "sysconfdir=$sysconfdir" >> $config_host_mak
6671 echo "qemu_confdir=$qemu_confdir" >> $config_host_mak
6672 echo "qemu_datadir=$qemu_datadir" >> $config_host_mak
6673 echo "qemu_firmwarepath=$firmwarepath" >> $config_host_mak
6674 echo "qemu_docdir=$qemu_docdir" >> $config_host_mak
6675 echo "qemu_moddir=$qemu_moddir" >> $config_host_mak
6676 if test "$mingw32" = "no" ; then
6677   echo "qemu_localstatedir=$local_statedir" >> $config_host_mak
6678 fi
6679 echo "qemu_helperdir=$libexecdir" >> $config_host_mak
6680 echo "qemu_localedir=$qemu_localedir" >> $config_host_mak
6681 echo "qemu_icondir=$qemu_icondir" >> $config_host_mak
6682 echo "qemu_desktopdir=$qemu_desktopdir" >> $config_host_mak
6683 echo "GIT=$git" >> $config_host_mak
6684 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
6685 echo "GIT_UPDATE=$git_update" >> $config_host_mak
6686
6687 echo "ARCH=$ARCH" >> $config_host_mak
6688
6689 if test "$default_devices" = "yes" ; then
6690   echo "CONFIG_MINIKCONF_MODE=--defconfig" >> $config_host_mak
6691 else
6692   echo "CONFIG_MINIKCONF_MODE=--allnoconfig" >> $config_host_mak
6693 fi
6694 if test "$debug_tcg" = "yes" ; then
6695   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
6696 fi
6697 if test "$strip_opt" = "yes" ; then
6698   echo "STRIP=${strip}" >> $config_host_mak
6699 fi
6700 if test "$bigendian" = "yes" ; then
6701   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
6702 fi
6703 if test "$mingw32" = "yes" ; then
6704   echo "CONFIG_WIN32=y" >> $config_host_mak
6705   rc_version=$(cat $source_path/VERSION)
6706   version_major=${rc_version%%.*}
6707   rc_version=${rc_version#*.}
6708   version_minor=${rc_version%%.*}
6709   rc_version=${rc_version#*.}
6710   version_subminor=${rc_version%%.*}
6711   version_micro=0
6712   echo "CONFIG_FILEVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
6713   echo "CONFIG_PRODUCTVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
6714   if test "$guest_agent_with_vss" = "yes" ; then
6715     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
6716     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
6717     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
6718   fi
6719   if test "$guest_agent_ntddscsi" = "yes" ; then
6720     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
6721   fi
6722   if test "$guest_agent_msi" = "yes"; then
6723     echo "QEMU_GA_MSI_ENABLED=yes" >> $config_host_mak
6724     echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
6725     echo "QEMU_GA_MSI_WITH_VSS=${QEMU_GA_MSI_WITH_VSS}" >> $config_host_mak
6726     echo "QEMU_GA_MSI_ARCH=${QEMU_GA_MSI_ARCH}" >> $config_host_mak
6727     echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
6728     echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
6729     echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
6730   fi
6731 else
6732   echo "CONFIG_POSIX=y" >> $config_host_mak
6733 fi
6734
6735 if test "$linux" = "yes" ; then
6736   echo "CONFIG_LINUX=y" >> $config_host_mak
6737 fi
6738
6739 if test "$darwin" = "yes" ; then
6740   echo "CONFIG_DARWIN=y" >> $config_host_mak
6741 fi
6742
6743 if test "$solaris" = "yes" ; then
6744   echo "CONFIG_SOLARIS=y" >> $config_host_mak
6745 fi
6746 if test "$haiku" = "yes" ; then
6747   echo "CONFIG_HAIKU=y" >> $config_host_mak
6748 fi
6749 if test "$static" = "yes" ; then
6750   echo "CONFIG_STATIC=y" >> $config_host_mak
6751 fi
6752 if test "$profiler" = "yes" ; then
6753   echo "CONFIG_PROFILER=y" >> $config_host_mak
6754 fi
6755 if test "$want_tools" = "yes" ; then
6756   echo "CONFIG_TOOLS=y" >> $config_host_mak
6757 fi
6758 if test "$guest_agent" = "yes" ; then
6759   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
6760 fi
6761 if test "$slirp" != "no"; then
6762   echo "CONFIG_SLIRP=y" >> $config_host_mak
6763   echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
6764   echo "SLIRP_CFLAGS=$slirp_cflags" >> $config_host_mak
6765   echo "SLIRP_LIBS=$slirp_libs" >> $config_host_mak
6766 fi
6767 subdirs=
6768 if [ "$slirp" = "git" -o "$slirp" = "internal" ]; then
6769   subdirs="$subdirs slirp"
6770 fi
6771 if test "$vde" = "yes" ; then
6772   echo "CONFIG_VDE=y" >> $config_host_mak
6773   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
6774 fi
6775 if test "$netmap" = "yes" ; then
6776   echo "CONFIG_NETMAP=y" >> $config_host_mak
6777 fi
6778 if test "$l2tpv3" = "yes" ; then
6779   echo "CONFIG_L2TPV3=y" >> $config_host_mak
6780 fi
6781 if test "$gprof" = "yes" ; then
6782   echo "CONFIG_GPROF=y" >> $config_host_mak
6783 fi
6784 if test "$cap_ng" = "yes" ; then
6785   echo "CONFIG_LIBCAP_NG=y" >> $config_host_mak
6786   echo "LIBCAP_NG_LIBS=$cap_libs" >> $config_host_mak
6787 fi
6788 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
6789 for drv in $audio_drv_list; do
6790     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
6791     echo "$def=y" >> $config_host_mak
6792 done
6793 if test "$alsa" = "yes" ; then
6794     echo "CONFIG_ALSA=y" >> $config_host_mak
6795 fi
6796 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
6797 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
6798 if test "$libpulse" = "yes" ; then
6799     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
6800 fi
6801 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
6802 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
6803 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
6804 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
6805 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
6806 if test "$libjack" = "yes" ; then
6807     echo "CONFIG_LIBJACK=y" >> $config_host_mak
6808 fi
6809 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
6810 if test "$audio_win_int" = "yes" ; then
6811   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
6812 fi
6813 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
6814 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
6815 if test "$xfs" = "yes" ; then
6816   echo "CONFIG_XFS=y" >> $config_host_mak
6817 fi
6818 qemu_version=$(head $source_path/VERSION)
6819 echo "PKGVERSION=$pkgversion" >>$config_host_mak
6820 echo "SRC_PATH=$source_path" >> $config_host_mak
6821 echo "TARGET_DIRS=$target_list" >> $config_host_mak
6822 if [ "$docs" = "yes" ] ; then
6823   echo "BUILD_DOCS=yes" >> $config_host_mak
6824 fi
6825 if test "$modules" = "yes"; then
6826   # $shacmd can generate a hash started with digit, which the compiler doesn't
6827   # like as an symbol. So prefix it with an underscore
6828   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
6829   echo "CONFIG_MODULES=y" >> $config_host_mak
6830 fi
6831 if test "$module_upgrades" = "yes"; then
6832   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
6833 fi
6834 if test "$have_x11" = "yes" && test "$need_x11" = "yes"; then
6835   echo "CONFIG_X11=y" >> $config_host_mak
6836   echo "X11_CFLAGS=$x11_cflags" >> $config_host_mak
6837   echo "X11_LIBS=$x11_libs" >> $config_host_mak
6838 fi
6839 if test "$cocoa" = "yes" ; then
6840   echo "CONFIG_COCOA=y" >> $config_host_mak
6841 fi
6842 if test "$iconv" = "yes" ; then
6843   echo "CONFIG_ICONV=y" >> $config_host_mak
6844   echo "ICONV_CFLAGS=$iconv_cflags" >> $config_host_mak
6845   echo "ICONV_LIBS=$iconv_lib" >> $config_host_mak
6846 fi
6847 if test "$curses" = "yes" ; then
6848   echo "CONFIG_CURSES=y" >> $config_host_mak
6849   echo "CURSES_CFLAGS=$curses_inc" >> $config_host_mak
6850   echo "CURSES_LIBS=$curses_lib" >> $config_host_mak
6851 fi
6852 if test "$pipe2" = "yes" ; then
6853   echo "CONFIG_PIPE2=y" >> $config_host_mak
6854 fi
6855 if test "$accept4" = "yes" ; then
6856   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
6857 fi
6858 if test "$splice" = "yes" ; then
6859   echo "CONFIG_SPLICE=y" >> $config_host_mak
6860 fi
6861 if test "$eventfd" = "yes" ; then
6862   echo "CONFIG_EVENTFD=y" >> $config_host_mak
6863 fi
6864 if test "$memfd" = "yes" ; then
6865   echo "CONFIG_MEMFD=y" >> $config_host_mak
6866 fi
6867 if test "$have_usbfs" = "yes" ; then
6868   echo "CONFIG_USBFS=y" >> $config_host_mak
6869 fi
6870 if test "$fallocate" = "yes" ; then
6871   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
6872 fi
6873 if test "$fallocate_punch_hole" = "yes" ; then
6874   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
6875 fi
6876 if test "$fallocate_zero_range" = "yes" ; then
6877   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
6878 fi
6879 if test "$posix_fallocate" = "yes" ; then
6880   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
6881 fi
6882 if test "$sync_file_range" = "yes" ; then
6883   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
6884 fi
6885 if test "$fiemap" = "yes" ; then
6886   echo "CONFIG_FIEMAP=y" >> $config_host_mak
6887 fi
6888 if test "$dup3" = "yes" ; then
6889   echo "CONFIG_DUP3=y" >> $config_host_mak
6890 fi
6891 if test "$ppoll" = "yes" ; then
6892   echo "CONFIG_PPOLL=y" >> $config_host_mak
6893 fi
6894 if test "$prctl_pr_set_timerslack" = "yes" ; then
6895   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
6896 fi
6897 if test "$epoll" = "yes" ; then
6898   echo "CONFIG_EPOLL=y" >> $config_host_mak
6899 fi
6900 if test "$epoll_create1" = "yes" ; then
6901   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
6902 fi
6903 if test "$sendfile" = "yes" ; then
6904   echo "CONFIG_SENDFILE=y" >> $config_host_mak
6905 fi
6906 if test "$timerfd" = "yes" ; then
6907   echo "CONFIG_TIMERFD=y" >> $config_host_mak
6908 fi
6909 if test "$setns" = "yes" ; then
6910   echo "CONFIG_SETNS=y" >> $config_host_mak
6911 fi
6912 if test "$clock_adjtime" = "yes" ; then
6913   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
6914 fi
6915 if test "$syncfs" = "yes" ; then
6916   echo "CONFIG_SYNCFS=y" >> $config_host_mak
6917 fi
6918 if test "$kcov" = "yes" ; then
6919   echo "CONFIG_KCOV=y" >> $config_host_mak
6920 fi
6921 if test "$inotify" = "yes" ; then
6922   echo "CONFIG_INOTIFY=y" >> $config_host_mak
6923 fi
6924 if test "$inotify1" = "yes" ; then
6925   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
6926 fi
6927 if test "$sem_timedwait" = "yes" ; then
6928   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
6929 fi
6930 if test "$strchrnul" = "yes" ; then
6931   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
6932 fi
6933 if test "$st_atim" = "yes" ; then
6934   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
6935 fi
6936 if test "$byteswap_h" = "yes" ; then
6937   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
6938 fi
6939 if test "$bswap_h" = "yes" ; then
6940   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
6941 fi
6942 if test "$curl" = "yes" ; then
6943   echo "CONFIG_CURL=y" >> $config_host_mak
6944   echo "CURL_CFLAGS=$curl_cflags" >> $config_host_mak
6945   echo "CURL_LIBS=$curl_libs" >> $config_host_mak
6946 fi
6947 if test "$brlapi" = "yes" ; then
6948   echo "CONFIG_BRLAPI=y" >> $config_host_mak
6949   echo "BRLAPI_LIBS=$brlapi_libs" >> $config_host_mak
6950 fi
6951 if test "$gtk" = "yes" ; then
6952   echo "CONFIG_GTK=y" >> $config_host_mak
6953   echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
6954   echo "GTK_LIBS=$gtk_libs" >> $config_host_mak
6955   if test "$gtk_gl" = "yes" ; then
6956     echo "CONFIG_GTK_GL=y" >> $config_host_mak
6957   fi
6958 fi
6959 if test "$gio" = "yes" ; then
6960     echo "CONFIG_GIO=y" >> $config_host_mak
6961     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
6962     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
6963     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
6964 fi
6965 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
6966 if test "$gnutls" = "yes" ; then
6967   echo "CONFIG_GNUTLS=y" >> $config_host_mak
6968   echo "GNUTLS_CFLAGS=$gnutls_cflags" >> $config_host_mak
6969   echo "GNUTLS_LIBS=$gnutls_libs" >> $config_host_mak
6970 fi
6971 if test "$gcrypt" = "yes" ; then
6972   echo "CONFIG_GCRYPT=y" >> $config_host_mak
6973   if test "$gcrypt_hmac" = "yes" ; then
6974     echo "CONFIG_GCRYPT_HMAC=y" >> $config_host_mak
6975   fi
6976 fi
6977 if test "$nettle" = "yes" ; then
6978   echo "CONFIG_NETTLE=y" >> $config_host_mak
6979   echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
6980   echo "NETTLE_CFLAGS=$nettle_cflags" >> $config_host_mak
6981   echo "NETTLE_LIBS=$nettle_libs" >> $config_host_mak
6982 fi
6983 if test "$qemu_private_xts" = "yes" ; then
6984   echo "CONFIG_QEMU_PRIVATE_XTS=y" >> $config_host_mak
6985 fi
6986 if test "$tasn1" = "yes" ; then
6987   echo "CONFIG_TASN1=y" >> $config_host_mak
6988 fi
6989 if test "$auth_pam" = "yes" ; then
6990     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
6991 fi
6992 if test "$have_ifaddrs_h" = "yes" ; then
6993     echo "HAVE_IFADDRS_H=y" >> $config_host_mak
6994 fi
6995 if test "$have_drm_h" = "yes" ; then
6996   echo "HAVE_DRM_H=y" >> $config_host_mak
6997 fi
6998 if test "$have_broken_size_max" = "yes" ; then
6999     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
7000 fi
7001 if test "$have_openpty" = "yes" ; then
7002     echo "HAVE_OPENPTY=y" >> $config_host_mak
7003 fi
7004 if test "$have_sys_signal_h" = "yes" ; then
7005     echo "HAVE_SYS_SIGNAL_H=y" >> $config_host_mak
7006 fi
7007
7008 # Work around a system header bug with some kernel/XFS header
7009 # versions where they both try to define 'struct fsxattr':
7010 # xfs headers will not try to redefine structs from linux headers
7011 # if this macro is set.
7012 if test "$have_fsxattr" = "yes" ; then
7013     echo "HAVE_FSXATTR=y" >> $config_host_mak
7014 fi
7015 if test "$have_copy_file_range" = "yes" ; then
7016     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
7017 fi
7018 if test "$vte" = "yes" ; then
7019   echo "CONFIG_VTE=y" >> $config_host_mak
7020   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
7021   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
7022 fi
7023 if test "$virglrenderer" = "yes" ; then
7024   echo "CONFIG_VIRGL=y" >> $config_host_mak
7025   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
7026   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
7027 fi
7028 if test "$xen" = "yes" ; then
7029   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
7030   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
7031   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
7032   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
7033 fi
7034 if test "$linux_aio" = "yes" ; then
7035   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
7036 fi
7037 if test "$linux_io_uring" = "yes" ; then
7038   echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
7039   echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
7040   echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
7041 fi
7042 if test "$attr" = "yes" ; then
7043   echo "CONFIG_ATTR=y" >> $config_host_mak
7044   echo "LIBATTR_LIBS=$libattr_libs" >> $config_host_mak
7045 fi
7046 if test "$libattr" = "yes" ; then
7047   echo "CONFIG_LIBATTR=y" >> $config_host_mak
7048 fi
7049 if test "$virtfs" = "yes" ; then
7050   echo "CONFIG_VIRTFS=y" >> $config_host_mak
7051 fi
7052 if test "$mpath" = "yes" ; then
7053   echo "CONFIG_MPATH=y" >> $config_host_mak
7054   if test "$mpathpersist_new_api" = "yes"; then
7055     echo "CONFIG_MPATH_NEW_API=y" >> $config_host_mak
7056   fi
7057 fi
7058 if test "$vhost_scsi" = "yes" ; then
7059   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
7060 fi
7061 if test "$vhost_net" = "yes" ; then
7062   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
7063 fi
7064 if test "$vhost_net_user" = "yes" ; then
7065   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
7066 fi
7067 if test "$vhost_net_vdpa" = "yes" ; then
7068   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
7069 fi
7070 if test "$vhost_crypto" = "yes" ; then
7071   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
7072 fi
7073 if test "$vhost_vsock" = "yes" ; then
7074   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
7075   if test "$vhost_user" = "yes" ; then
7076     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
7077   fi
7078 fi
7079 if test "$vhost_kernel" = "yes" ; then
7080   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
7081 fi
7082 if test "$vhost_user" = "yes" ; then
7083   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
7084 fi
7085 if test "$vhost_vdpa" = "yes" ; then
7086   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
7087 fi
7088 if test "$vhost_user_fs" = "yes" ; then
7089   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
7090 fi
7091 if test "$blobs" = "yes" ; then
7092   echo "INSTALL_BLOBS=yes" >> $config_host_mak
7093 fi
7094 if test "$iovec" = "yes" ; then
7095   echo "CONFIG_IOVEC=y" >> $config_host_mak
7096 fi
7097 if test "$preadv" = "yes" ; then
7098   echo "CONFIG_PREADV=y" >> $config_host_mak
7099 fi
7100 if test "$fdt" != "no" ; then
7101   echo "CONFIG_FDT=y" >> $config_host_mak
7102   echo "FDT_CFLAGS=$fdt_cflags" >> $config_host_mak
7103   echo "FDT_LIBS=$fdt_ldflags $fdt_libs" >> $config_host_mak
7104 fi
7105 if test "$membarrier" = "yes" ; then
7106   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
7107 fi
7108 if test "$signalfd" = "yes" ; then
7109   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
7110 fi
7111 if test "$optreset" = "yes" ; then
7112   echo "HAVE_OPTRESET=y" >> $config_host_mak
7113 fi
7114 if test "$tcg" = "yes"; then
7115   echo "CONFIG_TCG=y" >> $config_host_mak
7116   if test "$tcg_interpreter" = "yes" ; then
7117     echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
7118   fi
7119 fi
7120 if test "$fdatasync" = "yes" ; then
7121   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
7122 fi
7123 if test "$madvise" = "yes" ; then
7124   echo "CONFIG_MADVISE=y" >> $config_host_mak
7125 fi
7126 if test "$posix_madvise" = "yes" ; then
7127   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
7128 fi
7129 if test "$posix_memalign" = "yes" ; then
7130   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
7131 fi
7132 if test "$zlib" != "no" ; then
7133     echo "CONFIG_ZLIB=y" >> $config_host_mak
7134     echo "ZLIB_CFLAGS=$zlib_cflags" >> $config_host_mak
7135     echo "ZLIB_LIBS=$zlib_libs" >> $config_host_mak
7136 fi
7137 if test "$spice" = "yes" ; then
7138   echo "CONFIG_SPICE=y" >> $config_host_mak
7139   echo "SPICE_CFLAGS=$spice_cflags" >> $config_host_mak
7140   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
7141 fi
7142
7143 if test "$smartcard" = "yes" ; then
7144   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
7145   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
7146   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
7147 fi
7148
7149 if test "$libusb" = "yes" ; then
7150   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
7151   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
7152   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
7153 fi
7154
7155 if test "$usb_redir" = "yes" ; then
7156   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
7157   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
7158   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
7159 fi
7160
7161 if test "$opengl" = "yes" ; then
7162   echo "CONFIG_OPENGL=y" >> $config_host_mak
7163   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
7164   if test "$opengl_dmabuf" = "yes" ; then
7165     echo "CONFIG_OPENGL_DMABUF=y" >> $config_host_mak
7166   fi
7167 fi
7168
7169 if test "$gbm" = "yes" ; then
7170     echo "CONFIG_GBM=y" >> $config_host_mak
7171     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
7172     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
7173 fi
7174
7175
7176 if test "$malloc_trim" = "yes" ; then
7177   echo "CONFIG_MALLOC_TRIM=y" >> $config_host_mak
7178 fi
7179
7180 if test "$avx2_opt" = "yes" ; then
7181   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
7182 fi
7183
7184 if test "$avx512f_opt" = "yes" ; then
7185   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
7186 fi
7187
7188 if test "$lzo" = "yes" ; then
7189   echo "CONFIG_LZO=y" >> $config_host_mak
7190   echo "LZO_LIBS=$lzo_libs" >> $config_host_mak
7191 fi
7192
7193 if test "$snappy" = "yes" ; then
7194   echo "CONFIG_SNAPPY=y" >> $config_host_mak
7195   echo "SNAPPY_LIBS=$snappy_libs" >> $config_host_mak
7196 fi
7197
7198 if test "$bzip2" = "yes" ; then
7199   echo "CONFIG_BZIP2=y" >> $config_host_mak
7200   echo "BZIP2_LIBS=-lbz2" >> $config_host_mak
7201 fi
7202
7203 if test "$lzfse" = "yes" ; then
7204   echo "CONFIG_LZFSE=y" >> $config_host_mak
7205   echo "LZFSE_LIBS=-llzfse" >> $config_host_mak
7206 fi
7207
7208 if test "$zstd" = "yes" ; then
7209   echo "CONFIG_ZSTD=y" >> $config_host_mak
7210   echo "ZSTD_CFLAGS=$zstd_cflags" >> $config_host_mak
7211   echo "ZSTD_LIBS=$zstd_libs" >> $config_host_mak
7212 fi
7213
7214 if test "$libiscsi" = "yes" ; then
7215   echo "CONFIG_LIBISCSI=y" >> $config_host_mak
7216   echo "LIBISCSI_CFLAGS=$libiscsi_cflags" >> $config_host_mak
7217   echo "LIBISCSI_LIBS=$libiscsi_libs" >> $config_host_mak
7218 fi
7219
7220 if test "$libnfs" = "yes" ; then
7221   echo "CONFIG_LIBNFS=y" >> $config_host_mak
7222   echo "LIBNFS_LIBS=$libnfs_libs" >> $config_host_mak
7223 fi
7224
7225 if test "$seccomp" = "yes"; then
7226   echo "CONFIG_SECCOMP=y" >> $config_host_mak
7227   echo "SECCOMP_CFLAGS=$seccomp_cflags" >> $config_host_mak
7228   echo "SECCOMP_LIBS=$seccomp_libs" >> $config_host_mak
7229 fi
7230
7231 # XXX: suppress that
7232 if [ "$bsd" = "yes" ] ; then
7233   echo "CONFIG_BSD=y" >> $config_host_mak
7234 fi
7235
7236 if test "$localtime_r" = "yes" ; then
7237   echo "CONFIG_LOCALTIME_R=y" >> $config_host_mak
7238 fi
7239 if test "$qom_cast_debug" = "yes" ; then
7240   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
7241 fi
7242 if test "$rbd" = "yes" ; then
7243   echo "CONFIG_RBD=y" >> $config_host_mak
7244   echo "RBD_LIBS=$rbd_libs" >> $config_host_mak
7245 fi
7246
7247 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
7248 if test "$coroutine_pool" = "yes" ; then
7249   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
7250 else
7251   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
7252 fi
7253
7254 if test "$debug_stack_usage" = "yes" ; then
7255   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
7256 fi
7257
7258 if test "$crypto_afalg" = "yes" ; then
7259   echo "CONFIG_AF_ALG=y" >> $config_host_mak
7260 fi
7261
7262 if test "$open_by_handle_at" = "yes" ; then
7263   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
7264 fi
7265
7266 if test "$linux_magic_h" = "yes" ; then
7267   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
7268 fi
7269
7270 if test "$valgrind_h" = "yes" ; then
7271   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
7272 fi
7273
7274 if test "$have_asan_iface_fiber" = "yes" ; then
7275     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
7276 fi
7277
7278 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
7279     echo "CONFIG_TSAN=y" >> $config_host_mak
7280 fi
7281
7282 if test "$has_environ" = "yes" ; then
7283   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
7284 fi
7285
7286 if test "$cpuid_h" = "yes" ; then
7287   echo "CONFIG_CPUID_H=y" >> $config_host_mak
7288 fi
7289
7290 if test "$int128" = "yes" ; then
7291   echo "CONFIG_INT128=y" >> $config_host_mak
7292 fi
7293
7294 if test "$atomic128" = "yes" ; then
7295   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
7296 fi
7297
7298 if test "$cmpxchg128" = "yes" ; then
7299   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
7300 fi
7301
7302 if test "$atomic64" = "yes" ; then
7303   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
7304 fi
7305
7306 if test "$attralias" = "yes" ; then
7307   echo "CONFIG_ATTRIBUTE_ALIAS=y" >> $config_host_mak
7308 fi
7309
7310 if test "$getauxval" = "yes" ; then
7311   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
7312 fi
7313
7314 if test "$glusterfs" = "yes" ; then
7315   echo "CONFIG_GLUSTERFS=y" >> $config_host_mak
7316   echo "GLUSTERFS_CFLAGS=$glusterfs_cflags" >> $config_host_mak
7317   echo "GLUSTERFS_LIBS=$glusterfs_libs" >> $config_host_mak
7318 fi
7319
7320 if test "$glusterfs_xlator_opt" = "yes" ; then
7321   echo "CONFIG_GLUSTERFS_XLATOR_OPT=y" >> $config_host_mak
7322 fi
7323
7324 if test "$glusterfs_discard" = "yes" ; then
7325   echo "CONFIG_GLUSTERFS_DISCARD=y" >> $config_host_mak
7326 fi
7327
7328 if test "$glusterfs_fallocate" = "yes" ; then
7329   echo "CONFIG_GLUSTERFS_FALLOCATE=y" >> $config_host_mak
7330 fi
7331
7332 if test "$glusterfs_zerofill" = "yes" ; then
7333   echo "CONFIG_GLUSTERFS_ZEROFILL=y" >> $config_host_mak
7334 fi
7335
7336 if test "$glusterfs_ftruncate_has_stat" = "yes" ; then
7337   echo "CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT=y" >> $config_host_mak
7338 fi
7339
7340 if test "$glusterfs_iocb_has_stat" = "yes" ; then
7341   echo "CONFIG_GLUSTERFS_IOCB_HAS_STAT=y" >> $config_host_mak
7342 fi
7343
7344 if test "$libssh" = "yes" ; then
7345   echo "CONFIG_LIBSSH=y" >> $config_host_mak
7346   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
7347   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
7348 fi
7349
7350 if test "$live_block_migration" = "yes" ; then
7351   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
7352 fi
7353
7354 if test "$tpm" = "yes"; then
7355   echo 'CONFIG_TPM=y' >> $config_host_mak
7356 fi
7357
7358 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
7359 if have_backend "nop"; then
7360   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
7361 fi
7362 if have_backend "simple"; then
7363   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
7364   # Set the appropriate trace file.
7365   trace_file="\"$trace_file-\" FMT_pid"
7366 fi
7367 if have_backend "log"; then
7368   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
7369 fi
7370 if have_backend "ust"; then
7371   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
7372   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
7373   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
7374 fi
7375 if have_backend "dtrace"; then
7376   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
7377   if test "$trace_backend_stap" = "yes" ; then
7378     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
7379   fi
7380 fi
7381 if have_backend "ftrace"; then
7382   if test "$linux" = "yes" ; then
7383     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
7384   else
7385     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
7386   fi
7387 fi
7388 if have_backend "syslog"; then
7389   if test "$posix_syslog" = "yes" ; then
7390     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
7391   else
7392     feature_not_found "syslog(trace backend)" "syslog not available"
7393   fi
7394 fi
7395 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
7396
7397 if test "$rdma" = "yes" ; then
7398   echo "CONFIG_RDMA=y" >> $config_host_mak
7399   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
7400 fi
7401
7402 if test "$pvrdma" = "yes" ; then
7403   echo "CONFIG_PVRDMA=y" >> $config_host_mak
7404 fi
7405
7406 if test "$have_rtnetlink" = "yes" ; then
7407   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
7408 fi
7409
7410 if test "$libxml2" = "yes" ; then
7411   echo "CONFIG_LIBXML2=y" >> $config_host_mak
7412   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
7413   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
7414 fi
7415
7416 if test "$replication" = "yes" ; then
7417   echo "CONFIG_REPLICATION=y" >> $config_host_mak
7418 fi
7419
7420 if test "$have_af_vsock" = "yes" ; then
7421   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
7422 fi
7423
7424 if test "$have_sysmacros" = "yes" ; then
7425   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
7426 fi
7427
7428 if test "$have_static_assert" = "yes" ; then
7429   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
7430 fi
7431
7432 if test "$have_utmpx" = "yes" ; then
7433   echo "HAVE_UTMPX=y" >> $config_host_mak
7434 fi
7435 if test "$have_getrandom" = "yes" ; then
7436   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
7437 fi
7438 if test "$ivshmem" = "yes" ; then
7439   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
7440 fi
7441 if test "$capstone" != "no" ; then
7442   echo "CONFIG_CAPSTONE=y" >> $config_host_mak
7443   echo "CAPSTONE_CFLAGS=$capstone_cflags" >> $config_host_mak
7444   echo "CAPSTONE_LIBS=$capstone_libs" >> $config_host_mak
7445 fi
7446 if test "$debug_mutex" = "yes" ; then
7447   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
7448 fi
7449
7450 # Hold two types of flag:
7451 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
7452 #                                     a thread we have a handle to
7453 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
7454 #                                     platform
7455 if test "$pthread_setname_np_w_tid" = "yes" ; then
7456   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
7457   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
7458 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
7459   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
7460   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
7461 fi
7462
7463 if test "$libpmem" = "yes" ; then
7464   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
7465   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
7466   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
7467 fi
7468
7469 if test "$libdaxctl" = "yes" ; then
7470   echo "CONFIG_LIBDAXCTL=y" >> $config_host_mak
7471   echo "LIBDAXCTL_LIBS=$libdaxctl_libs" >> $config_host_mak
7472 fi
7473
7474 if test "$bochs" = "yes" ; then
7475   echo "CONFIG_BOCHS=y" >> $config_host_mak
7476 fi
7477 if test "$cloop" = "yes" ; then
7478   echo "CONFIG_CLOOP=y" >> $config_host_mak
7479 fi
7480 if test "$dmg" = "yes" ; then
7481   echo "CONFIG_DMG=y" >> $config_host_mak
7482 fi
7483 if test "$qcow1" = "yes" ; then
7484   echo "CONFIG_QCOW1=y" >> $config_host_mak
7485 fi
7486 if test "$vdi" = "yes" ; then
7487   echo "CONFIG_VDI=y" >> $config_host_mak
7488 fi
7489 if test "$vvfat" = "yes" ; then
7490   echo "CONFIG_VVFAT=y" >> $config_host_mak
7491 fi
7492 if test "$qed" = "yes" ; then
7493   echo "CONFIG_QED=y" >> $config_host_mak
7494 fi
7495 if test "$parallels" = "yes" ; then
7496   echo "CONFIG_PARALLELS=y" >> $config_host_mak
7497 fi
7498 if test "$sheepdog" = "yes" ; then
7499   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
7500 fi
7501 if test "$pty_h" = "yes" ; then
7502   echo "HAVE_PTY_H=y" >> $config_host_mak
7503 fi
7504 if test "$have_mlockall" = "yes" ; then
7505   echo "HAVE_MLOCKALL=y" >> $config_host_mak
7506 fi
7507 if test "$fuzzing" = "yes" ; then
7508   QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
7509 fi
7510
7511 if test "$plugins" = "yes" ; then
7512     echo "CONFIG_PLUGIN=y" >> $config_host_mak
7513     LIBS="-ldl $LIBS"
7514     # Copy the export object list to the build dir
7515     if test "$ld_dynamic_list" = "yes" ; then
7516         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
7517         ld_symbols=qemu-plugins-ld.symbols
7518         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
7519     elif test "$ld_exported_symbols_list" = "yes" ; then
7520         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
7521         ld64_symbols=qemu-plugins-ld64.symbols
7522         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
7523         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
7524             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
7525     else
7526         error_exit \
7527             "If \$plugins=yes, either \$ld_dynamic_list or " \
7528             "\$ld_exported_symbols_list should have been set to 'yes'."
7529     fi
7530 fi
7531
7532 if test -n "$gdb_bin" ; then
7533     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
7534 fi
7535
7536 if test "$secret_keyring" = "yes" ; then
7537   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
7538   if test "$have_keyutils" = "yes" ; then
7539     echo "CONFIG_TEST_SECRET_KEYRING=y" >> $config_host_mak
7540   fi
7541 fi
7542
7543 if test "$tcg_interpreter" = "yes"; then
7544   QEMU_INCLUDES="-iquote ${source_path}/tcg/tci $QEMU_INCLUDES"
7545 elif test "$ARCH" = "sparc64" ; then
7546   QEMU_INCLUDES="-iquote ${source_path}/tcg/sparc $QEMU_INCLUDES"
7547 elif test "$ARCH" = "s390x" ; then
7548   QEMU_INCLUDES="-iquote ${source_path}/tcg/s390 $QEMU_INCLUDES"
7549 elif test "$ARCH" = "x86_64" || test "$ARCH" = "x32" ; then
7550   QEMU_INCLUDES="-iquote ${source_path}/tcg/i386 $QEMU_INCLUDES"
7551 elif test "$ARCH" = "ppc64" ; then
7552   QEMU_INCLUDES="-iquote ${source_path}/tcg/ppc $QEMU_INCLUDES"
7553 elif test "$ARCH" = "riscv32" || test "$ARCH" = "riscv64" ; then
7554   QEMU_INCLUDES="-I${source_path}/tcg/riscv $QEMU_INCLUDES"
7555 else
7556   QEMU_INCLUDES="-iquote ${source_path}/tcg/${ARCH} $QEMU_INCLUDES"
7557 fi
7558
7559 echo "ROMS=$roms" >> $config_host_mak
7560 echo "MAKE=$make" >> $config_host_mak
7561 echo "INSTALL=$install" >> $config_host_mak
7562 echo "INSTALL_DIR=$install -d -m 0755" >> $config_host_mak
7563 echo "INSTALL_DATA=$install -c -m 0644" >> $config_host_mak
7564 echo "INSTALL_PROG=$install -c -m 0755" >> $config_host_mak
7565 echo "INSTALL_LIB=$install -c -m 0644" >> $config_host_mak
7566 echo "PYTHON=$python" >> $config_host_mak
7567 echo "SPHINX_BUILD=$sphinx_build" >> $config_host_mak
7568 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
7569 echo "MESON=$meson" >> $config_host_mak
7570 echo "CC=$cc" >> $config_host_mak
7571 if $iasl -h > /dev/null 2>&1; then
7572   echo "CONFIG_IASL=$iasl" >> $config_host_mak
7573 fi
7574 echo "CXX=$cxx" >> $config_host_mak
7575 echo "OBJCC=$objcc" >> $config_host_mak
7576 echo "AR=$ar" >> $config_host_mak
7577 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
7578 echo "AS=$as" >> $config_host_mak
7579 echo "CCAS=$ccas" >> $config_host_mak
7580 echo "CPP=$cpp" >> $config_host_mak
7581 echo "OBJCOPY=$objcopy" >> $config_host_mak
7582 echo "LD=$ld" >> $config_host_mak
7583 echo "RANLIB=$ranlib" >> $config_host_mak
7584 echo "NM=$nm" >> $config_host_mak
7585 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
7586 echo "WINDRES=$windres" >> $config_host_mak
7587 echo "CFLAGS=$CFLAGS" >> $config_host_mak
7588 echo "CXXFLAGS=$CXXFLAGS" >> $config_host_mak
7589 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
7590 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
7591 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
7592 echo "QEMU_INCLUDES=$QEMU_INCLUDES" >> $config_host_mak
7593 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
7594 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
7595 if test "$sparse" = "yes" ; then
7596   echo "SPARSE_CFLAGS = -Wbitwise -Wno-transparent-union -Wno-old-initializer -Wno-non-pointer-null" >> $config_host_mak
7597 fi
7598 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
7599 echo "LDFLAGS_NOPIE=$LDFLAGS_NOPIE" >> $config_host_mak
7600 echo "LD_REL_FLAGS=$LD_REL_FLAGS" >> $config_host_mak
7601 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
7602 echo "LIBS+=$LIBS" >> $config_host_mak
7603 echo "LIBS_TOOLS+=$libs_tools" >> $config_host_mak
7604 echo "PTHREAD_LIB=$PTHREAD_LIB" >> $config_host_mak
7605 echo "EXESUF=$EXESUF" >> $config_host_mak
7606 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
7607 echo "LDFLAGS_SHARED=$LDFLAGS_SHARED" >> $config_host_mak
7608 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
7609 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
7610 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
7611 echo "POD2MAN=$POD2MAN" >> $config_host_mak
7612 if test "$gcov" = "yes" ; then
7613   echo "CONFIG_GCOV=y" >> $config_host_mak
7614 fi
7615
7616 if test "$libudev" != "no"; then
7617     echo "CONFIG_LIBUDEV=y" >> $config_host_mak
7618     echo "LIBUDEV_LIBS=$libudev_libs" >> $config_host_mak
7619 fi
7620 if test "$fuzzing" != "no"; then
7621     echo "CONFIG_FUZZ=y" >> $config_host_mak
7622 fi
7623
7624 if test "$edk2_blobs" = "yes" ; then
7625   echo "DECOMPRESS_EDK2_BLOBS=y" >> $config_host_mak
7626 fi
7627
7628 if test "$rng_none" = "yes"; then
7629   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
7630 fi
7631
7632 # use included Linux headers
7633 if test "$linux" = "yes" ; then
7634   mkdir -p linux-headers
7635   case "$cpu" in
7636   i386|x86_64|x32)
7637     linux_arch=x86
7638     ;;
7639   ppc|ppc64|ppc64le)
7640     linux_arch=powerpc
7641     ;;
7642   s390x)
7643     linux_arch=s390
7644     ;;
7645   aarch64)
7646     linux_arch=arm64
7647     ;;
7648   mips64)
7649     linux_arch=mips
7650     ;;
7651   *)
7652     # For most CPUs the kernel architecture name and QEMU CPU name match.
7653     linux_arch="$cpu"
7654     ;;
7655   esac
7656     # For non-KVM architectures we will not have asm headers
7657     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
7658       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
7659     fi
7660 fi
7661
7662 for target in $target_list; do
7663 target_dir="$target"
7664 config_target_mak=$target_dir/config-target.mak
7665 target_name=$(echo $target | cut -d '-' -f 1)
7666 target_aligned_only="no"
7667 case "$target_name" in
7668   alpha|hppa|mips64el|mips64|mipsel|mips|mipsn32|mipsn32el|sh4|sh4eb|sparc|sparc64|sparc32plus|xtensa|xtensaeb)
7669   target_aligned_only="yes"
7670   ;;
7671 esac
7672 target_bigendian="no"
7673 case "$target_name" in
7674   armeb|aarch64_be|hppa|lm32|m68k|microblaze|mips|mipsn32|mips64|moxie|or1k|ppc|ppc64|ppc64abi32|s390x|sh4eb|sparc|sparc64|sparc32plus|xtensaeb)
7675   target_bigendian="yes"
7676   ;;
7677 esac
7678 target_softmmu="no"
7679 target_user_only="no"
7680 target_linux_user="no"
7681 target_bsd_user="no"
7682 case "$target" in
7683   ${target_name}-softmmu)
7684     target_softmmu="yes"
7685     ;;
7686   ${target_name}-linux-user)
7687     target_user_only="yes"
7688     target_linux_user="yes"
7689     ;;
7690   ${target_name}-bsd-user)
7691     target_user_only="yes"
7692     target_bsd_user="yes"
7693     ;;
7694   *)
7695     error_exit "Target '$target' not recognised"
7696     exit 1
7697     ;;
7698 esac
7699
7700 mkdir -p $target_dir
7701 echo "# Automatically generated by configure - do not modify" > $config_target_mak
7702
7703 bflt="no"
7704 mttcg="no"
7705 interp_prefix1=$(echo "$interp_prefix" | sed "s/%M/$target_name/g")
7706 gdb_xml_files=""
7707
7708 TARGET_ARCH="$target_name"
7709 TARGET_BASE_ARCH=""
7710 TARGET_ABI_DIR=""
7711 TARGET_SYSTBL_ABI=""
7712 TARGET_SYSTBL=""
7713
7714 case "$target_name" in
7715   i386)
7716     mttcg="yes"
7717         gdb_xml_files="i386-32bit.xml"
7718     TARGET_SYSTBL_ABI=i386
7719     TARGET_SYSTBL=syscall_32.tbl
7720   ;;
7721   x86_64)
7722     TARGET_BASE_ARCH=i386
7723     TARGET_SYSTBL_ABI=common,64
7724     TARGET_SYSTBL=syscall_64.tbl
7725     mttcg="yes"
7726     gdb_xml_files="i386-64bit.xml"
7727   ;;
7728   alpha)
7729     mttcg="yes"
7730     TARGET_SYSTBL_ABI=common
7731   ;;
7732   arm|armeb)
7733     TARGET_ARCH=arm
7734     TARGET_SYSTBL_ABI=common,oabi
7735     bflt="yes"
7736     mttcg="yes"
7737     gdb_xml_files="arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml arm-m-profile.xml"
7738   ;;
7739   aarch64|aarch64_be)
7740     TARGET_ARCH=aarch64
7741     TARGET_BASE_ARCH=arm
7742     bflt="yes"
7743     mttcg="yes"
7744     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"
7745   ;;
7746   avr)
7747     gdb_xml_files="avr-cpu.xml"
7748     target_compiler=$cross_cc_avr
7749   ;;
7750   cris)
7751   ;;
7752   hppa)
7753     mttcg="yes"
7754     TARGET_SYSTBL_ABI=common,32
7755   ;;
7756   lm32)
7757   ;;
7758   m68k)
7759     bflt="yes"
7760     gdb_xml_files="cf-core.xml cf-fp.xml m68k-core.xml m68k-fp.xml"
7761     TARGET_SYSTBL_ABI=common
7762   ;;
7763   microblaze|microblazeel)
7764     TARGET_ARCH=microblaze
7765     TARGET_SYSTBL_ABI=common
7766     mttcg="yes"
7767     bflt="yes"
7768     echo "TARGET_ABI32=y" >> $config_target_mak
7769   ;;
7770   mips|mipsel)
7771     mttcg="yes"
7772     TARGET_ARCH=mips
7773     echo "TARGET_ABI_MIPSO32=y" >> $config_target_mak
7774     TARGET_SYSTBL_ABI=o32
7775     TARGET_SYSTBL=syscall_o32.tbl
7776   ;;
7777   mipsn32|mipsn32el)
7778     mttcg="yes"
7779     TARGET_ARCH=mips64
7780     TARGET_BASE_ARCH=mips
7781     echo "TARGET_ABI_MIPSN32=y" >> $config_target_mak
7782     echo "TARGET_ABI32=y" >> $config_target_mak
7783     TARGET_SYSTBL_ABI=n32
7784     TARGET_SYSTBL=syscall_n32.tbl
7785   ;;
7786   mips64|mips64el)
7787     mttcg="no"
7788     TARGET_ARCH=mips64
7789     TARGET_BASE_ARCH=mips
7790     echo "TARGET_ABI_MIPSN64=y" >> $config_target_mak
7791     TARGET_SYSTBL_ABI=n64
7792     TARGET_SYSTBL=syscall_n64.tbl
7793   ;;
7794   moxie)
7795   ;;
7796   nios2)
7797   ;;
7798   or1k)
7799     TARGET_ARCH=openrisc
7800     TARGET_BASE_ARCH=openrisc
7801   ;;
7802   ppc)
7803     gdb_xml_files="power-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
7804     TARGET_SYSTBL_ABI=common,nospu,32
7805   ;;
7806   ppc64)
7807     TARGET_BASE_ARCH=ppc
7808     TARGET_ABI_DIR=ppc
7809     TARGET_SYSTBL_ABI=common,nospu,64
7810     mttcg=yes
7811     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7812   ;;
7813   ppc64le)
7814     TARGET_ARCH=ppc64
7815     TARGET_BASE_ARCH=ppc
7816     TARGET_ABI_DIR=ppc
7817     TARGET_SYSTBL_ABI=common,nospu,64
7818     mttcg=yes
7819     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7820   ;;
7821   ppc64abi32)
7822     TARGET_ARCH=ppc64
7823     TARGET_BASE_ARCH=ppc
7824     TARGET_ABI_DIR=ppc
7825     TARGET_SYSTBL_ABI=common,nospu,32
7826     echo "TARGET_ABI32=y" >> $config_target_mak
7827     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7828   ;;
7829   riscv32)
7830     TARGET_BASE_ARCH=riscv
7831     TARGET_ABI_DIR=riscv
7832     mttcg=yes
7833     gdb_xml_files="riscv-32bit-cpu.xml riscv-32bit-fpu.xml riscv-64bit-fpu.xml riscv-32bit-csr.xml riscv-32bit-virtual.xml"
7834   ;;
7835   riscv64)
7836     TARGET_BASE_ARCH=riscv
7837     TARGET_ABI_DIR=riscv
7838     mttcg=yes
7839     gdb_xml_files="riscv-64bit-cpu.xml riscv-32bit-fpu.xml riscv-64bit-fpu.xml riscv-64bit-csr.xml riscv-64bit-virtual.xml"
7840   ;;
7841   rx)
7842     TARGET_ARCH=rx
7843     bflt="yes"
7844     target_compiler=$cross_cc_rx
7845     gdb_xml_files="rx-core.xml"
7846   ;;
7847   sh4|sh4eb)
7848     TARGET_ARCH=sh4
7849     TARGET_SYSTBL_ABI=common
7850     bflt="yes"
7851   ;;
7852   sparc)
7853     TARGET_SYSTBL_ABI=common,32
7854   ;;
7855   sparc64)
7856     TARGET_BASE_ARCH=sparc
7857     TARGET_SYSTBL_ABI=common,64
7858   ;;
7859   sparc32plus)
7860     TARGET_ARCH=sparc64
7861     TARGET_BASE_ARCH=sparc
7862     TARGET_ABI_DIR=sparc
7863     TARGET_SYSTBL_ABI=common,32
7864     echo "TARGET_ABI32=y" >> $config_target_mak
7865   ;;
7866   s390x)
7867     TARGET_SYSTBL_ABI=common,64
7868     mttcg=yes
7869     gdb_xml_files="s390x-core64.xml s390-acr.xml s390-fpr.xml s390-vx.xml s390-cr.xml s390-virt.xml s390-gs.xml"
7870   ;;
7871   tilegx)
7872   ;;
7873   tricore)
7874   ;;
7875   unicore32)
7876   ;;
7877   xtensa|xtensaeb)
7878     TARGET_ARCH=xtensa
7879     TARGET_SYSTBL_ABI=common
7880     bflt="yes"
7881     mttcg="yes"
7882   ;;
7883   *)
7884     error_exit "Unsupported target CPU"
7885   ;;
7886 esac
7887 # TARGET_BASE_ARCH needs to be defined after TARGET_ARCH
7888 if [ "$TARGET_BASE_ARCH" = "" ]; then
7889   TARGET_BASE_ARCH=$TARGET_ARCH
7890 fi
7891 if [ "$TARGET_SYSTBL_ABI" != "" ] && [ "$TARGET_SYSTBL" = "" ]; then
7892   TARGET_SYSTBL=syscall.tbl
7893 fi
7894
7895 upper() {
7896     echo "$@"| LC_ALL=C tr '[a-z]' '[A-Z]'
7897 }
7898
7899 target_arch_name="$(upper $TARGET_ARCH)"
7900 echo "TARGET_$target_arch_name=y" >> $config_target_mak
7901 echo "TARGET_NAME=$target_name" >> $config_target_mak
7902 echo "TARGET_BASE_ARCH=$TARGET_BASE_ARCH" >> $config_target_mak
7903 if [ "$TARGET_ABI_DIR" = "" ]; then
7904   TARGET_ABI_DIR=$TARGET_ARCH
7905 fi
7906 echo "TARGET_ABI_DIR=$TARGET_ABI_DIR" >> $config_target_mak
7907 if [ "$HOST_VARIANT_DIR" != "" ]; then
7908     echo "HOST_VARIANT_DIR=$HOST_VARIANT_DIR" >> $config_target_mak
7909 fi
7910 if [ "$TARGET_SYSTBL_ABI" != "" ]; then
7911     echo "TARGET_SYSTBL_ABI=$TARGET_SYSTBL_ABI" >> $config_target_mak
7912     echo "TARGET_SYSTBL=$TARGET_SYSTBL" >> $config_target_mak
7913 fi
7914
7915 if supported_xen_target $target; then
7916     echo "CONFIG_XEN=y" >> $config_target_mak
7917     if test "$xen_pci_passthrough" = yes; then
7918         echo "CONFIG_XEN_PCI_PASSTHROUGH=y" >> "$config_target_mak"
7919     fi
7920 fi
7921 if supported_kvm_target $target; then
7922     echo "CONFIG_KVM=y" >> $config_target_mak
7923 fi
7924 if supported_hax_target $target; then
7925     echo "CONFIG_HAX=y" >> $config_target_mak
7926 fi
7927 if supported_hvf_target $target; then
7928     echo "CONFIG_HVF=y" >> $config_target_mak
7929 fi
7930 if supported_whpx_target $target; then
7931     echo "CONFIG_WHPX=y" >> $config_target_mak
7932 fi
7933 if test "$target_aligned_only" = "yes" ; then
7934   echo "TARGET_ALIGNED_ONLY=y" >> $config_target_mak
7935 fi
7936 if test "$target_bigendian" = "yes" ; then
7937   echo "TARGET_WORDS_BIGENDIAN=y" >> $config_target_mak
7938 fi
7939 if test "$target_softmmu" = "yes" ; then
7940   echo "CONFIG_SOFTMMU=y" >> $config_target_mak
7941   if test "$mttcg" = "yes" ; then
7942     echo "TARGET_SUPPORTS_MTTCG=y" >> $config_target_mak
7943   fi
7944 fi
7945 if test "$target_user_only" = "yes" ; then
7946   echo "CONFIG_USER_ONLY=y" >> $config_target_mak
7947   echo "CONFIG_QEMU_INTERP_PREFIX=\"$interp_prefix1\"" >> $config_target_mak
7948   symlink "../qemu-$target_name" "$target_dir/qemu-$target_name"
7949 else
7950   symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name"
7951 fi
7952 if test "$target_linux_user" = "yes" ; then
7953   echo "CONFIG_LINUX_USER=y" >> $config_target_mak
7954 fi
7955 list=""
7956 if test ! -z "$gdb_xml_files" ; then
7957   for x in $gdb_xml_files; do
7958     list="$list gdb-xml/$x"
7959   done
7960   echo "TARGET_XML_FILES=$list" >> $config_target_mak
7961 fi
7962
7963 if test "$target_user_only" = "yes" && test "$bflt" = "yes"; then
7964   echo "TARGET_HAS_BFLT=y" >> $config_target_mak
7965 fi
7966 if test "$target_bsd_user" = "yes" ; then
7967   echo "CONFIG_BSD_USER=y" >> $config_target_mak
7968 fi
7969
7970
7971 # generate QEMU_CFLAGS/QEMU_LDFLAGS for targets
7972
7973 disas_config() {
7974   echo "CONFIG_${1}_DIS=y" >> $config_target_mak
7975   echo "CONFIG_${1}_DIS=y" >> config-all-disas.mak
7976 }
7977
7978 for i in $ARCH $TARGET_BASE_ARCH ; do
7979   case "$i" in
7980   alpha)
7981     disas_config "ALPHA"
7982   ;;
7983   aarch64)
7984     if test -n "${cxx}"; then
7985       disas_config "ARM_A64"
7986     fi
7987   ;;
7988   arm)
7989     disas_config "ARM"
7990     if test -n "${cxx}"; then
7991       disas_config "ARM_A64"
7992     fi
7993   ;;
7994   avr)
7995     disas_config "AVR"
7996   ;;
7997   cris)
7998     disas_config "CRIS"
7999   ;;
8000   hppa)
8001     disas_config "HPPA"
8002   ;;
8003   i386|x86_64|x32)
8004     disas_config "I386"
8005   ;;
8006   lm32)
8007     disas_config "LM32"
8008   ;;
8009   m68k)
8010     disas_config "M68K"
8011   ;;
8012   microblaze*)
8013     disas_config "MICROBLAZE"
8014   ;;
8015   mips*)
8016     disas_config "MIPS"
8017     if test -n "${cxx}"; then
8018       disas_config "NANOMIPS"
8019     fi
8020   ;;
8021   moxie*)
8022     disas_config "MOXIE"
8023   ;;
8024   nios2)
8025     disas_config "NIOS2"
8026   ;;
8027   or1k)
8028     disas_config "OPENRISC"
8029   ;;
8030   ppc*)
8031     disas_config "PPC"
8032   ;;
8033   riscv*)
8034     disas_config "RISCV"
8035   ;;
8036   rx)
8037     disas_config "RX"
8038   ;;
8039   s390*)
8040     disas_config "S390"
8041   ;;
8042   sh4)
8043     disas_config "SH4"
8044   ;;
8045   sparc*)
8046     disas_config "SPARC"
8047   ;;
8048   xtensa*)
8049     disas_config "XTENSA"
8050   ;;
8051   esac
8052 done
8053 if test "$tcg_interpreter" = "yes" ; then
8054   disas_config "TCI"
8055 fi
8056
8057 done # for target in $targets
8058
8059 if [ "$fdt" = "git" ]; then
8060   subdirs="$subdirs dtc"
8061 fi
8062 if [ "$capstone" = "git" -o "$capstone" = "internal" ]; then
8063   subdirs="$subdirs capstone"
8064 fi
8065 echo "SUBDIRS=$subdirs" >> $config_host_mak
8066 if test -n "$LIBCAPSTONE"; then
8067   echo "LIBCAPSTONE=$LIBCAPSTONE" >> $config_host_mak
8068 fi
8069
8070 if test "$numa" = "yes"; then
8071   echo "CONFIG_NUMA=y" >> $config_host_mak
8072   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
8073 fi
8074
8075 if test "$ccache_cpp2" = "yes"; then
8076   echo "export CCACHE_CPP2=y" >> $config_host_mak
8077 fi
8078
8079 if test "$safe_stack" = "yes"; then
8080   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
8081 fi
8082
8083 # If we're using a separate build tree, set it up now.
8084 # DIRS are directories which we simply mkdir in the build tree;
8085 # LINKS are things to symlink back into the source tree
8086 # (these can be both files and directories).
8087 # Caution: do not add files or directories here using wildcards. This
8088 # will result in problems later if a new file matching the wildcard is
8089 # added to the source tree -- nothing will cause configure to be rerun
8090 # so the build tree will be missing the link back to the new file, and
8091 # tests might fail. Prefer to keep the relevant files in their own
8092 # directory and symlink the directory instead.
8093 DIRS="tests tests/tcg tests/tcg/lm32 tests/qapi-schema tests/qtest/libqos"
8094 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
8095 DIRS="$DIRS docs docs/interop fsdev scsi"
8096 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
8097 DIRS="$DIRS roms/seabios"
8098 LINKS="Makefile"
8099 LINKS="$LINKS tests/tcg/lm32/Makefile"
8100 LINKS="$LINKS tests/tcg/Makefile.target"
8101 LINKS="$LINKS pc-bios/optionrom/Makefile"
8102 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
8103 LINKS="$LINKS roms/seabios/Makefile"
8104 LINKS="$LINKS pc-bios/qemu-icon.bmp"
8105 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
8106 LINKS="$LINKS tests/acceptance tests/data"
8107 LINKS="$LINKS tests/qemu-iotests/check"
8108 LINKS="$LINKS python"
8109 for bios_file in \
8110     $source_path/pc-bios/*.bin \
8111     $source_path/pc-bios/*.elf \
8112     $source_path/pc-bios/*.lid \
8113     $source_path/pc-bios/*.rom \
8114     $source_path/pc-bios/*.dtb \
8115     $source_path/pc-bios/*.img \
8116     $source_path/pc-bios/openbios-* \
8117     $source_path/pc-bios/u-boot.* \
8118     $source_path/pc-bios/edk2-*.fd.bz2 \
8119     $source_path/pc-bios/palcode-*
8120 do
8121     LINKS="$LINKS pc-bios/$(basename $bios_file)"
8122 done
8123 mkdir -p $DIRS
8124 for f in $LINKS ; do
8125     if [ -e "$source_path/$f" ] && [ "$pwd_is_source_path" != "y" ]; then
8126         symlink "$source_path/$f" "$f"
8127     fi
8128 done
8129
8130 (for i in $cross_cc_vars; do
8131   export $i
8132 done
8133 export target_list source_path use_containers
8134 $source_path/tests/tcg/configure.sh)
8135
8136 # temporary config to build submodules
8137 for rom in seabios; do
8138     config_mak=roms/$rom/config.mak
8139     echo "# Automatically generated by configure - do not modify" > $config_mak
8140     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
8141     echo "AS=$as" >> $config_mak
8142     echo "CCAS=$ccas" >> $config_mak
8143     echo "CC=$cc" >> $config_mak
8144     echo "BCC=bcc" >> $config_mak
8145     echo "CPP=$cpp" >> $config_mak
8146     echo "OBJCOPY=objcopy" >> $config_mak
8147     echo "IASL=$iasl" >> $config_mak
8148     echo "LD=$ld" >> $config_mak
8149     echo "RANLIB=$ranlib" >> $config_mak
8150 done
8151
8152 # set up qemu-iotests in this build directory
8153 iotests_common_env="tests/qemu-iotests/common.env"
8154
8155 echo "# Automatically generated by configure - do not modify" > "$iotests_common_env"
8156 echo >> "$iotests_common_env"
8157 echo "export PYTHON='$python'" >> "$iotests_common_env"
8158
8159 if test "$skip_meson" = no; then
8160 cross="config-meson.cross.new"
8161 meson_quote() {
8162     echo "['$(echo $* | sed "s/ /','/g")']"
8163 }
8164
8165 echo "# Automatically generated by configure - do not modify" > $cross
8166 echo "[properties]" >> $cross
8167 test -z "$cxx" && echo "link_language = 'c'" >> $cross
8168 echo "[binaries]" >> $cross
8169 echo "c = $(meson_quote $cc)" >> $cross
8170 test -n "$cxx" && echo "cpp = $(meson_quote $cxx)" >> $cross
8171 echo "ar = $(meson_quote $ar)" >> $cross
8172 echo "nm = $(meson_quote $nm)" >> $cross
8173 echo "pkgconfig = $(meson_quote $pkg_config_exe)" >> $cross
8174 echo "ranlib = $(meson_quote $ranlib)" >> $cross
8175 echo "strip = $(meson_quote $strip)" >> $cross
8176 echo "windres = $(meson_quote $windres)" >> $cross
8177 if test -n "$cross_prefix"; then
8178     cross_arg="--cross-file config-meson.cross"
8179     # Hack: Meson expects an absolute path for the *build* machine
8180     # for the prefix, so add a slash in front of a Windows path that
8181     # includes a drive letter.
8182     #
8183     # See https://github.com/mesonbuild/meson/issues/7577.
8184     echo "[host_machine]" >> $cross
8185     if test "$mingw32" = "yes" ; then
8186         echo "system = 'windows'" >> $cross
8187         case $prefix in
8188             ?:*) pre_prefix=/ ;;
8189         esac
8190     fi
8191     case "$ARCH" in
8192         i386|x86_64)
8193             echo "cpu_family = 'x86'" >> $cross
8194             ;;
8195         ppc64le)
8196             echo "cpu_family = 'ppc64'" >> $cross
8197             ;;
8198         *)
8199             echo "cpu_family = '$ARCH'" >> $cross
8200             ;;
8201     esac
8202     echo "cpu = '$cpu'" >> $cross
8203     if test "$bigendian" = "yes" ; then
8204         echo "endian = 'big'" >> $cross
8205     else
8206         echo "endian = 'little'" >> $cross
8207     fi
8208 else
8209     cross_arg="--native-file config-meson.cross"
8210 fi
8211 mv $cross config-meson.cross
8212
8213 rm -rf meson-private meson-info meson-logs
8214 NINJA=${ninja:-$PWD/ninjatool} $meson setup \
8215         --prefix "${pre_prefix}$prefix" \
8216         --libdir "${pre_prefix}$libdir" \
8217         --libexecdir "${pre_prefix}$libexecdir" \
8218         --bindir "${pre_prefix}$bindir" \
8219         --includedir "${pre_prefix}$includedir" \
8220         --datadir "${pre_prefix}$datadir" \
8221         --mandir "${pre_prefix}$mandir" \
8222         --sysconfdir "${pre_prefix}$sysconfdir" \
8223         --localstatedir "${pre_prefix}$local_statedir" \
8224         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
8225         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
8226         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
8227         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
8228         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
8229         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
8230         -Dsdl=$sdl -Dsdl_image=$sdl_image \
8231         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
8232         -Dgettext=$gettext -Dxkbcommon=$xkbcommon \
8233         $cross_arg \
8234         "$PWD" "$source_path"
8235
8236 if test "$?" -ne 0 ; then
8237     error_exit "meson setup failed"
8238 fi
8239 touch ninjatool.stamp
8240 fi
8241
8242 # Save the configure command line for later reuse.
8243 cat <<EOD >config.status
8244 #!/bin/sh
8245 # Generated by configure.
8246 # Run this file to recreate the current configuration.
8247 # Compiler output produced by configure, useful for debugging
8248 # configure, is in config.log if it exists.
8249 EOD
8250
8251 preserve_env() {
8252     envname=$1
8253
8254     eval envval=\$$envname
8255
8256     if test -n "$envval"
8257     then
8258         echo "$envname='$envval'" >> config.status
8259         echo "export $envname" >> config.status
8260     else
8261         echo "unset $envname" >> config.status
8262     fi
8263 }
8264
8265 # Preserve various env variables that influence what
8266 # features/build target configure will detect
8267 preserve_env AR
8268 preserve_env AS
8269 preserve_env CC
8270 preserve_env CPP
8271 preserve_env CXX
8272 preserve_env INSTALL
8273 preserve_env LD
8274 preserve_env LD_LIBRARY_PATH
8275 preserve_env LIBTOOL
8276 preserve_env MAKE
8277 preserve_env NM
8278 preserve_env OBJCOPY
8279 preserve_env PATH
8280 preserve_env PKG_CONFIG
8281 preserve_env PKG_CONFIG_LIBDIR
8282 preserve_env PKG_CONFIG_PATH
8283 preserve_env PYTHON
8284 preserve_env SDL2_CONFIG
8285 preserve_env SMBD
8286 preserve_env STRIP
8287 preserve_env WINDRES
8288
8289 printf "exec" >>config.status
8290 for i in "$0" "$@"; do
8291   test "$i" = --skip-meson || printf " '%s'" "$i" >>config.status
8292 done
8293 echo ' "$@"' >>config.status
8294 chmod +x config.status
8295
8296 rm -r "$TMPDIR1"