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 qemu_suffix="qemu"
 477 slirp=""
 478 oss_lib=""
 479 bsd="no"
 480 linux="no"
 481 solaris="no"
 482 profiler="no"
 483 cocoa="no"
 484 softmmu="yes"
 485 linux_user="no"
 486 bsd_user="no"
 487 blobs="yes"
 488 edk2_blobs="no"
 489 pkgversion=""
 490 pie=""
 491 qom_cast_debug="yes"
 492 trace_backends="log"
 493 trace_file="trace"
 494 spice=""
 495 rbd=""
 496 smartcard=""
 497 u2f="auto"
 498 libusb=""
 499 usb_redir=""
 500 opengl=""
 501 opengl_dmabuf="no"
 502 cpuid_h="no"
 503 avx2_opt=""
 504 capstone=""
 505 lzo=""
 506 snappy=""
 507 bzip2=""
 508 lzfse=""
 509 zstd=""
 510 guest_agent=""
 511 guest_agent_with_vss="no"
 512 guest_agent_ntddscsi="no"
 513 guest_agent_msi=""
 514 vss_win32_sdk=""
 515 win_sdk="no"
 516 want_tools=""
 517 libiscsi=""
 518 libnfs=""
 519 coroutine=""
 520 coroutine_pool=""
 521 debug_stack_usage="no"
 522 crypto_afalg="no"
 523 seccomp=""
 524 glusterfs=""
 525 glusterfs_xlator_opt="no"
 526 glusterfs_discard="no"
 527 glusterfs_fallocate="no"
 528 glusterfs_zerofill="no"
 529 glusterfs_ftruncate_has_stat="no"
 530 glusterfs_iocb_has_stat="no"
 531 gtk=""
 532 gtk_gl="no"
 533 tls_priority="NORMAL"
 534 gnutls=""
 535 nettle=""
 536 nettle_xts="no"
 537 gcrypt=""
 538 gcrypt_hmac="no"
 539 gcrypt_xts="no"
 540 qemu_private_xts="yes"
 541 auth_pam=""
 542 vte=""
 543 virglrenderer=""
 544 tpm=""
 545 libssh=""
 546 live_block_migration="yes"
 547 numa=""
 548 tcmalloc="no"
 549 jemalloc="no"
 550 replication="yes"
 551 bochs="yes"
 552 cloop="yes"
 553 dmg="yes"
 554 qcow1="yes"
 555 vdi="yes"
 556 vvfat="yes"
 557 qed="yes"
 558 parallels="yes"
 559 sheepdog="yes"
 560 libxml2=""
 561 debug_mutex="no"
 562 libpmem=""
 563 default_devices="yes"
 564 plugins="no"
 565 fuzzing="no"
 566 rng_none="no"
 567 secret_keyring=""
 568 libdaxctl=""
 569 meson=""
 570 ninja=""
 571 skip_meson=no
 572 gettext=""
 573
 574 bogus_os="no"
 575 malloc_trim=""
 576
 577 # parse CC options first
 578 for opt do
 579   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 580   case "$opt" in
 581   --cross-prefix=*) cross_prefix="$optarg"
 582   ;;
 583   --cc=*) CC="$optarg"
 584   ;;
 585   --cxx=*) CXX="$optarg"
 586   ;;
 587   --cpu=*) cpu="$optarg"
 588   ;;
 589   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 590                     QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 591   ;;
 592   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 593   ;;
 594   --extra-ldflags=*) QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 595                      EXTRA_LDFLAGS="$optarg"
 596   ;;
 597   --enable-debug-info) debug_info="yes"
 598   ;;
 599   --disable-debug-info) debug_info="no"
 600   ;;
 601   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 602   ;;
 603   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 604                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 605                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 606   ;;
 607   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 608                 cc_archs="$cc_archs $cc_arch"
 609                 eval "cross_cc_${cc_arch}=\$optarg"
 610                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 611   ;;
 612   esac
 613 done
 614 # OS specific
 615 # Using uname is really, really broken.  Once we have the right set of checks
 616 # we can eliminate its usage altogether.
 617
 618 # Preferred compiler:
 619 #  ${CC} (if set)
 620 #  ${cross_prefix}gcc (if cross-prefix specified)
 621 #  system compiler
 622 if test -z "${CC}${cross_prefix}"; then
 623   cc="$host_cc"
 624 else
 625   cc="${CC-${cross_prefix}gcc}"
 626 fi
 627
 628 if test -z "${CXX}${cross_prefix}"; then
 629   cxx="c++"
 630 else
 631   cxx="${CXX-${cross_prefix}g++}"
 632 fi
 633
 634 ar="${AR-${cross_prefix}ar}"
 635 as="${AS-${cross_prefix}as}"
 636 ccas="${CCAS-$cc}"
 637 cpp="${CPP-$cc -E}"
 638 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 639 ld="${LD-${cross_prefix}ld}"
 640 ranlib="${RANLIB-${cross_prefix}ranlib}"
 641 nm="${NM-${cross_prefix}nm}"
 642 strip="${STRIP-${cross_prefix}strip}"
 643 windres="${WINDRES-${cross_prefix}windres}"
 644 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 645 query_pkg_config() {
 646     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 647 }
 648 pkg_config=query_pkg_config
 649 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 650
 651 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 652 ARFLAGS="${ARFLAGS-rv}"
 653
 654 # default flags for all hosts
 655 # We use -fwrapv to tell the compiler that we require a C dialect where
 656 # left shift of signed integers is well defined and has the expected
 657 # 2s-complement style results. (Both clang and gcc agree that it
 658 # provides these semantics.)
 659 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
 660 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 661 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 662 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 663 QEMU_INCLUDES="-iquote . -iquote ${source_path} -iquote ${source_path}/accel/tcg -iquote ${source_path}/include"
 664 QEMU_INCLUDES="$QEMU_INCLUDES -iquote ${source_path}/disas/libvixl"
 665 CFLAGS="-std=gnu99 -Wall"
 666
 667
 668 # running configure in the source tree?
 669 # we know that's the case if configure is there.
 670 if test -f "./configure"; then
 671     pwd_is_source_path="y"
 672 else
 673     pwd_is_source_path="n"
 674 fi
 675
 676 check_define() {
 677 cat > $TMPC <<EOF
 678 #if !defined($1)
 679 #error $1 not defined
 680 #endif
 681 int main(void) { return 0; }
 682 EOF
 683   compile_object
 684 }
 685
 686 check_include() {
 687 cat > $TMPC <<EOF
 688 #include <$1>
 689 int main(void) { return 0; }
 690 EOF
 691   compile_object
 692 }
 693
 694 write_c_skeleton() {
 695     cat > $TMPC <<EOF
 696 int main(void) { return 0; }
 697 EOF
 698 }
 699
 700 write_c_fuzzer_skeleton() {
 701     cat > $TMPC <<EOF
 702 #include <stdint.h>
 703 #include <sys/types.h>
 704 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 705 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 706 EOF
 707 }
 708
 709 if check_define __linux__ ; then
 710   targetos="Linux"
 711 elif check_define _WIN32 ; then
 712   targetos='MINGW32'
 713 elif check_define __OpenBSD__ ; then
 714   targetos='OpenBSD'
 715 elif check_define __sun__ ; then
 716   targetos='SunOS'
 717 elif check_define __HAIKU__ ; then
 718   targetos='Haiku'
 719 elif check_define __FreeBSD__ ; then
 720   targetos='FreeBSD'
 721 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 722   targetos='GNU/kFreeBSD'
 723 elif check_define __DragonFly__ ; then
 724   targetos='DragonFly'
 725 elif check_define __NetBSD__; then
 726   targetos='NetBSD'
 727 elif check_define __APPLE__; then
 728   targetos='Darwin'
 729 else
 730   # This is a fatal error, but don't report it yet, because we
 731   # might be going to just print the --help text, or it might
 732   # be the result of a missing compiler.
 733   targetos='bogus'
 734   bogus_os='yes'
 735 fi
 736
 737 # Some host OSes need non-standard checks for which CPU to use.
 738 # Note that these checks are broken for cross-compilation: if you're
 739 # cross-compiling to one of these OSes then you'll need to specify
 740 # the correct CPU with the --cpu option.
 741 case $targetos in
 742 Darwin)
 743   # on Leopard most of the system is 32-bit, so we have to ask the kernel if we can
 744   # run 64-bit userspace code.
 745   # If the user didn't specify a CPU explicitly and the kernel says this is
 746   # 64 bit hw, then assume x86_64. Otherwise fall through to the usual detection code.
 747   if test -z "$cpu" && test "$(sysctl -n hw.optional.x86_64)" = "1"; then
 748     cpu="x86_64"
 749   fi
 750   ;;
 751 SunOS)
 752   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 753   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 754     cpu="x86_64"
 755   fi
 756 esac
 757
 758 if test ! -z "$cpu" ; then
 759   # command line argument
 760   :
 761 elif check_define __i386__ ; then
 762   cpu="i386"
 763 elif check_define __x86_64__ ; then
 764   if check_define __ILP32__ ; then
 765     cpu="x32"
 766   else
 767     cpu="x86_64"
 768   fi
 769 elif check_define __sparc__ ; then
 770   if check_define __arch64__ ; then
 771     cpu="sparc64"
 772   else
 773     cpu="sparc"
 774   fi
 775 elif check_define _ARCH_PPC ; then
 776   if check_define _ARCH_PPC64 ; then
 777     if check_define _LITTLE_ENDIAN ; then
 778       cpu="ppc64le"
 779     else
 780       cpu="ppc64"
 781     fi
 782   else
 783     cpu="ppc"
 784   fi
 785 elif check_define __mips__ ; then
 786   cpu="mips"
 787 elif check_define __s390__ ; then
 788   if check_define __s390x__ ; then
 789     cpu="s390x"
 790   else
 791     cpu="s390"
 792   fi
 793 elif check_define __riscv ; then
 794   if check_define _LP64 ; then
 795     cpu="riscv64"
 796   else
 797     cpu="riscv32"
 798   fi
 799 elif check_define __arm__ ; then
 800   cpu="arm"
 801 elif check_define __aarch64__ ; then
 802   cpu="aarch64"
 803 else
 804   cpu=$(uname -m)
 805 fi
 806
 807 ARCH=
 808 # Normalise host CPU name and set ARCH.
 809 # Note that this case should only have supported host CPUs, not guests.
 810 case "$cpu" in
 811   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 812   ;;
 813   ppc64le)
 814     ARCH="ppc64"
 815   ;;
 816   i386|i486|i586|i686|i86pc|BePC)
 817     cpu="i386"
 818   ;;
 819   x86_64|amd64)
 820     cpu="x86_64"
 821   ;;
 822   armv*b|armv*l|arm)
 823     cpu="arm"
 824   ;;
 825   aarch64)
 826     cpu="aarch64"
 827   ;;
 828   mips*)
 829     cpu="mips"
 830   ;;
 831   sparc|sun4[cdmuv])
 832     cpu="sparc"
 833   ;;
 834   *)
 835     # This will result in either an error or falling back to TCI later
 836     ARCH=unknown
 837   ;;
 838 esac
 839 if test -z "$ARCH"; then
 840   ARCH="$cpu"
 841 fi
 842
 843 # OS specific
 844
 845 # host *BSD for user mode
 846 HOST_VARIANT_DIR=""
 847
 848 case $targetos in
 849 MINGW32*)
 850   mingw32="yes"
 851   hax="yes"
 852   vhost_user="no"
 853   audio_possible_drivers="dsound sdl"
 854   if check_include dsound.h; then
 855     audio_drv_list="dsound"
 856   else
 857     audio_drv_list=""
 858   fi
 859   supported_os="yes"
 860   pie="no"
 861 ;;
 862 GNU/kFreeBSD)
 863   bsd="yes"
 864   audio_drv_list="oss try-sdl"
 865   audio_possible_drivers="oss sdl pa"
 866 ;;
 867 FreeBSD)
 868   bsd="yes"
 869   make="${MAKE-gmake}"
 870   audio_drv_list="oss try-sdl"
 871   audio_possible_drivers="oss sdl pa"
 872   # needed for kinfo_getvmmap(3) in libutil.h
 873   LIBS="-lutil $LIBS"
 874   netmap=""  # enable netmap autodetect
 875   HOST_VARIANT_DIR="freebsd"
 876 ;;
 877 DragonFly)
 878   bsd="yes"
 879   make="${MAKE-gmake}"
 880   audio_drv_list="oss try-sdl"
 881   audio_possible_drivers="oss sdl pa"
 882   HOST_VARIANT_DIR="dragonfly"
 883 ;;
 884 NetBSD)
 885   bsd="yes"
 886   hax="yes"
 887   make="${MAKE-gmake}"
 888   audio_drv_list="oss try-sdl"
 889   audio_possible_drivers="oss sdl"
 890   oss_lib="-lossaudio"
 891   HOST_VARIANT_DIR="netbsd"
 892 ;;
 893 OpenBSD)
 894   bsd="yes"
 895   make="${MAKE-gmake}"
 896   audio_drv_list="try-sdl"
 897   audio_possible_drivers="sdl"
 898   HOST_VARIANT_DIR="openbsd"
 899 ;;
 900 Darwin)
 901   bsd="yes"
 902   darwin="yes"
 903   hax="yes"
 904   hvf="yes"
 905   LDFLAGS_SHARED="-bundle -undefined dynamic_lookup"
 906   if [ "$cpu" = "x86_64" ] ; then
 907     QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
 908     QEMU_LDFLAGS="-arch x86_64 $QEMU_LDFLAGS"
 909   fi
 910   cocoa="yes"
 911   audio_drv_list="coreaudio try-sdl"
 912   audio_possible_drivers="coreaudio sdl"
 913   QEMU_LDFLAGS="-framework CoreFoundation -framework IOKit $QEMU_LDFLAGS"
 914   # Disable attempts to use ObjectiveC features in os/object.h since they
 915   # won't work when we're compiling with gcc as a C compiler.
 916   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 917   HOST_VARIANT_DIR="darwin"
 918 ;;
 919 SunOS)
 920   solaris="yes"
 921   make="${MAKE-gmake}"
 922   install="${INSTALL-ginstall}"
 923   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 924   if test -f /usr/include/sys/soundcard.h ; then
 925     audio_drv_list="oss try-sdl"
 926   fi
 927   audio_possible_drivers="oss sdl"
 928 # needed for CMSG_ macros in sys/socket.h
 929   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 930 # needed for TIOCWIN* defines in termios.h
 931   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 932   solarisnetlibs="-lsocket -lnsl -lresolv"
 933   LIBS="$solarisnetlibs $LIBS"
 934 ;;
 935 Haiku)
 936   haiku="yes"
 937   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -DBSD_SOURCE $QEMU_CFLAGS"
 938   LIBS="-lposix_error_mapper -lnetwork -lbsd $LIBS"
 939 ;;
 940 Linux)
 941   audio_drv_list="try-pa oss"
 942   audio_possible_drivers="oss alsa sdl pa"
 943   linux="yes"
 944   linux_user="yes"
 945   kvm="yes"
 946   QEMU_INCLUDES="-isystem ${source_path}/linux-headers -I$PWD/linux-headers $QEMU_INCLUDES"
 947   libudev="yes"
 948 ;;
 949 esac
 950
 951 if [ "$bsd" = "yes" ] ; then
 952   if [ "$darwin" != "yes" ] ; then
 953     bsd_user="yes"
 954   fi
 955 fi
 956
 957 : ${make=${MAKE-make}}
 958 : ${install=${INSTALL-install}}
 959 # We prefer python 3.x. A bare 'python' is traditionally
 960 # python 2.x, but some distros have it as python 3.x, so
 961 # we check that too
 962 python=
 963 explicit_python=no
 964 for binary in "${PYTHON-python3}" python
 965 do
 966     if has "$binary"
 967     then
 968         python=$(command -v "$binary")
 969         break
 970     fi
 971 done
 972
 973 sphinx_build=
 974 for binary in sphinx-build-3 sphinx-build
 975 do
 976     if has "$binary"
 977     then
 978         sphinx_build=$(command -v "$binary")
 979         break
 980     fi
 981 done
 982
 983 # Check for ancillary tools used in testing
 984 genisoimage=
 985 for binary in genisoimage mkisofs
 986 do
 987     if has $binary
 988     then
 989         genisoimage=$(command -v "$binary")
 990         break
 991     fi
 992 done
 993
 994 : ${smbd=${SMBD-/usr/sbin/smbd}}
 995
 996 # Default objcc to clang if available, otherwise use CC
 997 if has clang; then
 998   objcc=clang
 999 else
1000   objcc="$cc"
1001 fi
1002
1003 if test "$mingw32" = "yes" ; then
1004   EXESUF=".exe"
1005   HOST_DSOSUF=".dll"
1006   # MinGW needs -mthreads for TLS and macro _MT.
1007   CFLAGS="-mthreads $CFLAGS"
1008   LIBS="-lwinmm -lws2_32 $LIBS"
1009   write_c_skeleton;
1010   if compile_prog "" "-liberty" ; then
1011     LIBS="-liberty $LIBS"
1012   fi
1013   prefix="c:/Program Files/QEMU"
1014   qemu_suffix=""
1015   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
1016 fi
1017
1018 werror=""
1019
1020 for opt do
1021   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
1022   case "$opt" in
1023   --help|-h) show_help=yes
1024   ;;
1025   --version|-V) exec cat $source_path/VERSION
1026   ;;
1027   --prefix=*) prefix="$optarg"
1028   ;;
1029   --interp-prefix=*) interp_prefix="$optarg"
1030   ;;
1031   --cross-prefix=*)
1032   ;;
1033   --cc=*)
1034   ;;
1035   --host-cc=*) host_cc="$optarg"
1036   ;;
1037   --cxx=*)
1038   ;;
1039   --iasl=*) iasl="$optarg"
1040   ;;
1041   --objcc=*) objcc="$optarg"
1042   ;;
1043   --make=*) make="$optarg"
1044   ;;
1045   --install=*) install="$optarg"
1046   ;;
1047   --python=*) python="$optarg" ; explicit_python=yes
1048   ;;
1049   --sphinx-build=*) sphinx_build="$optarg"
1050   ;;
1051   --skip-meson) skip_meson=yes
1052   ;;
1053   --meson=*) meson="$optarg"
1054   ;;
1055   --ninja=*) ninja="$optarg"
1056   ;;
1057   --smbd=*) smbd="$optarg"
1058   ;;
1059   --extra-cflags=*)
1060   ;;
1061   --extra-cxxflags=*)
1062   ;;
1063   --extra-ldflags=*)
1064   ;;
1065   --enable-debug-info)
1066   ;;
1067   --disable-debug-info)
1068   ;;
1069   --cross-cc-*)
1070   ;;
1071   --enable-modules)
1072       modules="yes"
1073   ;;
1074   --disable-modules)
1075       modules="no"
1076   ;;
1077   --disable-module-upgrades) module_upgrades="no"
1078   ;;
1079   --enable-module-upgrades) module_upgrades="yes"
1080   ;;
1081   --cpu=*)
1082   ;;
1083   --target-list=*) target_list="$optarg"
1084                    if test "$target_list_exclude"; then
1085                        error_exit "Can't mix --target-list with --target-list-exclude"
1086                    fi
1087   ;;
1088   --target-list-exclude=*) target_list_exclude="$optarg"
1089                    if test "$target_list"; then
1090                        error_exit "Can't mix --target-list-exclude with --target-list"
1091                    fi
1092   ;;
1093   --enable-trace-backends=*) trace_backends="$optarg"
1094   ;;
1095   # XXX: backwards compatibility
1096   --enable-trace-backend=*) trace_backends="$optarg"
1097   ;;
1098   --with-trace-file=*) trace_file="$optarg"
1099   ;;
1100   --with-default-devices) default_devices="yes"
1101   ;;
1102   --without-default-devices) default_devices="no"
1103   ;;
1104   --enable-gprof) gprof="yes"
1105   ;;
1106   --enable-gcov) gcov="yes"
1107   ;;
1108   --static)
1109     static="yes"
1110     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
1111   ;;
1112   --mandir=*) mandir="$optarg"
1113   ;;
1114   --bindir=*) bindir="$optarg"
1115   ;;
1116   --libdir=*) libdir="$optarg"
1117   ;;
1118   --libexecdir=*) libexecdir="$optarg"
1119   ;;
1120   --includedir=*) includedir="$optarg"
1121   ;;
1122   --datadir=*) datadir="$optarg"
1123   ;;
1124   --with-suffix=*) qemu_suffix="$optarg"
1125   ;;
1126   --docdir=*) qemu_docdir="$optarg"
1127   ;;
1128   --sysconfdir=*) sysconfdir="$optarg"
1129   ;;
1130   --localstatedir=*) local_statedir="$optarg"
1131   ;;
1132   --firmwarepath=*) firmwarepath="$optarg"
1133   ;;
1134   --host=*|--build=*|\
1135   --disable-dependency-tracking|\
1136   --sbindir=*|--sharedstatedir=*|\
1137   --oldincludedir=*|--datarootdir=*|--infodir=*|--localedir=*|\
1138   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
1139     # These switches are silently ignored, for compatibility with
1140     # autoconf-generated configure scripts. This allows QEMU's
1141     # configure to be used by RPM and similar macros that set
1142     # lots of directory switches by default.
1143   ;;
1144   --disable-sdl) sdl="disabled"
1145   ;;
1146   --enable-sdl) sdl="enabled"
1147   ;;
1148   --disable-sdl-image) sdl_image="disabled"
1149   ;;
1150   --enable-sdl-image) sdl_image="enabled"
1151   ;;
1152   --disable-qom-cast-debug) qom_cast_debug="no"
1153   ;;
1154   --enable-qom-cast-debug) qom_cast_debug="yes"
1155   ;;
1156   --disable-virtfs) virtfs="no"
1157   ;;
1158   --enable-virtfs) virtfs="yes"
1159   ;;
1160   --disable-mpath) mpath="no"
1161   ;;
1162   --enable-mpath) mpath="yes"
1163   ;;
1164   --disable-vnc) vnc="disabled"
1165   ;;
1166   --enable-vnc) vnc="enabled"
1167   ;;
1168   --disable-gettext) gettext="false"
1169   ;;
1170   --enable-gettext) gettext="true"
1171   ;;
1172   --oss-lib=*) oss_lib="$optarg"
1173   ;;
1174   --audio-drv-list=*) audio_drv_list="$optarg"
1175   ;;
1176   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1177   ;;
1178   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1179   ;;
1180   --enable-debug-tcg) debug_tcg="yes"
1181   ;;
1182   --disable-debug-tcg) debug_tcg="no"
1183   ;;
1184   --enable-debug)
1185       # Enable debugging options that aren't excessively noisy
1186       debug_tcg="yes"
1187       debug_mutex="yes"
1188       debug="yes"
1189       strip_opt="no"
1190       fortify_source="no"
1191   ;;
1192   --enable-sanitizers) sanitizers="yes"
1193   ;;
1194   --disable-sanitizers) sanitizers="no"
1195   ;;
1196   --enable-tsan) tsan="yes"
1197   ;;
1198   --disable-tsan) tsan="no"
1199   ;;
1200   --enable-sparse) sparse="yes"
1201   ;;
1202   --disable-sparse) sparse="no"
1203   ;;
1204   --disable-strip) strip_opt="no"
1205   ;;
1206   --disable-vnc-sasl) vnc_sasl="disabled"
1207   ;;
1208   --enable-vnc-sasl) vnc_sasl="enabled"
1209   ;;
1210   --disable-vnc-jpeg) vnc_jpeg="disabled"
1211   ;;
1212   --enable-vnc-jpeg) vnc_jpeg="enabled"
1213   ;;
1214   --disable-vnc-png) vnc_png="disabled"
1215   ;;
1216   --enable-vnc-png) vnc_png="enabled"
1217   ;;
1218   --disable-slirp) slirp="no"
1219   ;;
1220   --enable-slirp=git) slirp="git"
1221   ;;
1222   --enable-slirp=system) slirp="system"
1223   ;;
1224   --disable-vde) vde="no"
1225   ;;
1226   --enable-vde) vde="yes"
1227   ;;
1228   --disable-netmap) netmap="no"
1229   ;;
1230   --enable-netmap) netmap="yes"
1231   ;;
1232   --disable-xen) xen="no"
1233   ;;
1234   --enable-xen) xen="yes"
1235   ;;
1236   --disable-xen-pci-passthrough) xen_pci_passthrough="no"
1237   ;;
1238   --enable-xen-pci-passthrough) xen_pci_passthrough="yes"
1239   ;;
1240   --disable-brlapi) brlapi="no"
1241   ;;
1242   --enable-brlapi) brlapi="yes"
1243   ;;
1244   --disable-kvm) kvm="no"
1245   ;;
1246   --enable-kvm) kvm="yes"
1247   ;;
1248   --disable-hax) hax="no"
1249   ;;
1250   --enable-hax) hax="yes"
1251   ;;
1252   --disable-hvf) hvf="no"
1253   ;;
1254   --enable-hvf) hvf="yes"
1255   ;;
1256   --disable-whpx) whpx="no"
1257   ;;
1258   --enable-whpx) whpx="yes"
1259   ;;
1260   --disable-tcg-interpreter) tcg_interpreter="no"
1261   ;;
1262   --enable-tcg-interpreter) tcg_interpreter="yes"
1263   ;;
1264   --disable-cap-ng)  cap_ng="no"
1265   ;;
1266   --enable-cap-ng) cap_ng="yes"
1267   ;;
1268   --disable-tcg) tcg="no"
1269   ;;
1270   --enable-tcg) tcg="yes"
1271   ;;
1272   --disable-malloc-trim) malloc_trim="no"
1273   ;;
1274   --enable-malloc-trim) malloc_trim="yes"
1275   ;;
1276   --disable-spice) spice="no"
1277   ;;
1278   --enable-spice) spice="yes"
1279   ;;
1280   --disable-libiscsi) libiscsi="no"
1281   ;;
1282   --enable-libiscsi) libiscsi="yes"
1283   ;;
1284   --disable-libnfs) libnfs="no"
1285   ;;
1286   --enable-libnfs) libnfs="yes"
1287   ;;
1288   --enable-profiler) profiler="yes"
1289   ;;
1290   --disable-cocoa) cocoa="no"
1291   ;;
1292   --enable-cocoa)
1293       cocoa="yes" ;
1294       audio_drv_list="coreaudio $(echo $audio_drv_list | sed s,coreaudio,,g)"
1295   ;;
1296   --disable-system) softmmu="no"
1297   ;;
1298   --enable-system) softmmu="yes"
1299   ;;
1300   --disable-user)
1301       linux_user="no" ;
1302       bsd_user="no" ;
1303   ;;
1304   --enable-user) ;;
1305   --disable-linux-user) linux_user="no"
1306   ;;
1307   --enable-linux-user) linux_user="yes"
1308   ;;
1309   --disable-bsd-user) bsd_user="no"
1310   ;;
1311   --enable-bsd-user) bsd_user="yes"
1312   ;;
1313   --enable-pie) pie="yes"
1314   ;;
1315   --disable-pie) pie="no"
1316   ;;
1317   --enable-werror) werror="yes"
1318   ;;
1319   --disable-werror) werror="no"
1320   ;;
1321   --enable-stack-protector) stack_protector="yes"
1322   ;;
1323   --disable-stack-protector) stack_protector="no"
1324   ;;
1325   --enable-safe-stack) safe_stack="yes"
1326   ;;
1327   --disable-safe-stack) safe_stack="no"
1328   ;;
1329   --disable-curses) curses="no"
1330   ;;
1331   --enable-curses) curses="yes"
1332   ;;
1333   --disable-iconv) iconv="no"
1334   ;;
1335   --enable-iconv) iconv="yes"
1336   ;;
1337   --disable-curl) curl="no"
1338   ;;
1339   --enable-curl) curl="yes"
1340   ;;
1341   --disable-fdt) fdt="no"
1342   ;;
1343   --enable-fdt) fdt="yes"
1344   ;;
1345   --disable-linux-aio) linux_aio="no"
1346   ;;
1347   --enable-linux-aio) linux_aio="yes"
1348   ;;
1349   --disable-linux-io-uring) linux_io_uring="no"
1350   ;;
1351   --enable-linux-io-uring) linux_io_uring="yes"
1352   ;;
1353   --disable-attr) attr="no"
1354   ;;
1355   --enable-attr) attr="yes"
1356   ;;
1357   --disable-membarrier) membarrier="no"
1358   ;;
1359   --enable-membarrier) membarrier="yes"
1360   ;;
1361   --disable-blobs) blobs="no"
1362   ;;
1363   --with-pkgversion=*) pkgversion="$optarg"
1364   ;;
1365   --with-coroutine=*) coroutine="$optarg"
1366   ;;
1367   --disable-coroutine-pool) coroutine_pool="no"
1368   ;;
1369   --enable-coroutine-pool) coroutine_pool="yes"
1370   ;;
1371   --enable-debug-stack-usage) debug_stack_usage="yes"
1372   ;;
1373   --enable-crypto-afalg) crypto_afalg="yes"
1374   ;;
1375   --disable-crypto-afalg) crypto_afalg="no"
1376   ;;
1377   --disable-docs) docs="no"
1378   ;;
1379   --enable-docs) docs="yes"
1380   ;;
1381   --disable-vhost-net) vhost_net="no"
1382   ;;
1383   --enable-vhost-net) vhost_net="yes"
1384   ;;
1385   --disable-vhost-crypto) vhost_crypto="no"
1386   ;;
1387   --enable-vhost-crypto) vhost_crypto="yes"
1388   ;;
1389   --disable-vhost-scsi) vhost_scsi="no"
1390   ;;
1391   --enable-vhost-scsi) vhost_scsi="yes"
1392   ;;
1393   --disable-vhost-vsock) vhost_vsock="no"
1394   ;;
1395   --enable-vhost-vsock) vhost_vsock="yes"
1396   ;;
1397   --disable-vhost-user-fs) vhost_user_fs="no"
1398   ;;
1399   --enable-vhost-user-fs) vhost_user_fs="yes"
1400   ;;
1401   --disable-opengl) opengl="no"
1402   ;;
1403   --enable-opengl) opengl="yes"
1404   ;;
1405   --disable-rbd) rbd="no"
1406   ;;
1407   --enable-rbd) rbd="yes"
1408   ;;
1409   --disable-xfsctl) xfs="no"
1410   ;;
1411   --enable-xfsctl) xfs="yes"
1412   ;;
1413   --disable-smartcard) smartcard="no"
1414   ;;
1415   --enable-smartcard) smartcard="yes"
1416   ;;
1417   --disable-u2f) u2f="disabled"
1418   ;;
1419   --enable-u2f) u2f="enabled"
1420   ;;
1421   --disable-libusb) libusb="no"
1422   ;;
1423   --enable-libusb) libusb="yes"
1424   ;;
1425   --disable-usb-redir) usb_redir="no"
1426   ;;
1427   --enable-usb-redir) usb_redir="yes"
1428   ;;
1429   --disable-zlib-test)
1430   ;;
1431   --disable-lzo) lzo="no"
1432   ;;
1433   --enable-lzo) lzo="yes"
1434   ;;
1435   --disable-snappy) snappy="no"
1436   ;;
1437   --enable-snappy) snappy="yes"
1438   ;;
1439   --disable-bzip2) bzip2="no"
1440   ;;
1441   --enable-bzip2) bzip2="yes"
1442   ;;
1443   --enable-lzfse) lzfse="yes"
1444   ;;
1445   --disable-lzfse) lzfse="no"
1446   ;;
1447   --disable-zstd) zstd="no"
1448   ;;
1449   --enable-zstd) zstd="yes"
1450   ;;
1451   --enable-guest-agent) guest_agent="yes"
1452   ;;
1453   --disable-guest-agent) guest_agent="no"
1454   ;;
1455   --enable-guest-agent-msi) guest_agent_msi="yes"
1456   ;;
1457   --disable-guest-agent-msi) guest_agent_msi="no"
1458   ;;
1459   --with-vss-sdk) vss_win32_sdk=""
1460   ;;
1461   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1462   ;;
1463   --without-vss-sdk) vss_win32_sdk="no"
1464   ;;
1465   --with-win-sdk) win_sdk=""
1466   ;;
1467   --with-win-sdk=*) win_sdk="$optarg"
1468   ;;
1469   --without-win-sdk) win_sdk="no"
1470   ;;
1471   --enable-tools) want_tools="yes"
1472   ;;
1473   --disable-tools) want_tools="no"
1474   ;;
1475   --enable-seccomp) seccomp="yes"
1476   ;;
1477   --disable-seccomp) seccomp="no"
1478   ;;
1479   --disable-glusterfs) glusterfs="no"
1480   ;;
1481   --disable-avx2) avx2_opt="no"
1482   ;;
1483   --enable-avx2) avx2_opt="yes"
1484   ;;
1485   --disable-avx512f) avx512f_opt="no"
1486   ;;
1487   --enable-avx512f) avx512f_opt="yes"
1488   ;;
1489
1490   --enable-glusterfs) glusterfs="yes"
1491   ;;
1492   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1493       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1494   ;;
1495   --enable-vhdx|--disable-vhdx)
1496       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1497   ;;
1498   --enable-uuid|--disable-uuid)
1499       echo "$0: $opt is obsolete, UUID support is always built" >&2
1500   ;;
1501   --disable-gtk) gtk="no"
1502   ;;
1503   --enable-gtk) gtk="yes"
1504   ;;
1505   --tls-priority=*) tls_priority="$optarg"
1506   ;;
1507   --disable-gnutls) gnutls="no"
1508   ;;
1509   --enable-gnutls) gnutls="yes"
1510   ;;
1511   --disable-nettle) nettle="no"
1512   ;;
1513   --enable-nettle) nettle="yes"
1514   ;;
1515   --disable-gcrypt) gcrypt="no"
1516   ;;
1517   --enable-gcrypt) gcrypt="yes"
1518   ;;
1519   --disable-auth-pam) auth_pam="no"
1520   ;;
1521   --enable-auth-pam) auth_pam="yes"
1522   ;;
1523   --enable-rdma) rdma="yes"
1524   ;;
1525   --disable-rdma) rdma="no"
1526   ;;
1527   --enable-pvrdma) pvrdma="yes"
1528   ;;
1529   --disable-pvrdma) pvrdma="no"
1530   ;;
1531   --disable-vte) vte="no"
1532   ;;
1533   --enable-vte) vte="yes"
1534   ;;
1535   --disable-virglrenderer) virglrenderer="no"
1536   ;;
1537   --enable-virglrenderer) virglrenderer="yes"
1538   ;;
1539   --disable-tpm) tpm="no"
1540   ;;
1541   --enable-tpm) tpm="yes"
1542   ;;
1543   --disable-libssh) libssh="no"
1544   ;;
1545   --enable-libssh) libssh="yes"
1546   ;;
1547   --disable-live-block-migration) live_block_migration="no"
1548   ;;
1549   --enable-live-block-migration) live_block_migration="yes"
1550   ;;
1551   --disable-numa) numa="no"
1552   ;;
1553   --enable-numa) numa="yes"
1554   ;;
1555   --disable-libxml2) libxml2="no"
1556   ;;
1557   --enable-libxml2) libxml2="yes"
1558   ;;
1559   --disable-tcmalloc) tcmalloc="no"
1560   ;;
1561   --enable-tcmalloc) tcmalloc="yes"
1562   ;;
1563   --disable-jemalloc) jemalloc="no"
1564   ;;
1565   --enable-jemalloc) jemalloc="yes"
1566   ;;
1567   --disable-replication) replication="no"
1568   ;;
1569   --enable-replication) replication="yes"
1570   ;;
1571   --disable-bochs) bochs="no"
1572   ;;
1573   --enable-bochs) bochs="yes"
1574   ;;
1575   --disable-cloop) cloop="no"
1576   ;;
1577   --enable-cloop) cloop="yes"
1578   ;;
1579   --disable-dmg) dmg="no"
1580   ;;
1581   --enable-dmg) dmg="yes"
1582   ;;
1583   --disable-qcow1) qcow1="no"
1584   ;;
1585   --enable-qcow1) qcow1="yes"
1586   ;;
1587   --disable-vdi) vdi="no"
1588   ;;
1589   --enable-vdi) vdi="yes"
1590   ;;
1591   --disable-vvfat) vvfat="no"
1592   ;;
1593   --enable-vvfat) vvfat="yes"
1594   ;;
1595   --disable-qed) qed="no"
1596   ;;
1597   --enable-qed) qed="yes"
1598   ;;
1599   --disable-parallels) parallels="no"
1600   ;;
1601   --enable-parallels) parallels="yes"
1602   ;;
1603   --disable-sheepdog) sheepdog="no"
1604   ;;
1605   --enable-sheepdog) sheepdog="yes"
1606   ;;
1607   --disable-vhost-user) vhost_user="no"
1608   ;;
1609   --enable-vhost-user) vhost_user="yes"
1610   ;;
1611   --disable-vhost-vdpa) vhost_vdpa="no"
1612   ;;
1613   --enable-vhost-vdpa) vhost_vdpa="yes"
1614   ;;
1615   --disable-vhost-kernel) vhost_kernel="no"
1616   ;;
1617   --enable-vhost-kernel) vhost_kernel="yes"
1618   ;;
1619   --disable-capstone) capstone="no"
1620   ;;
1621   --enable-capstone) capstone="yes"
1622   ;;
1623   --enable-capstone=git) capstone="git"
1624   ;;
1625   --enable-capstone=system) capstone="system"
1626   ;;
1627   --with-git=*) git="$optarg"
1628   ;;
1629   --enable-git-update) git_update=yes
1630   ;;
1631   --disable-git-update) git_update=no
1632   ;;
1633   --enable-debug-mutex) debug_mutex=yes
1634   ;;
1635   --disable-debug-mutex) debug_mutex=no
1636   ;;
1637   --enable-libpmem) libpmem=yes
1638   ;;
1639   --disable-libpmem) libpmem=no
1640   ;;
1641   --enable-xkbcommon) xkbcommon="enabled"
1642   ;;
1643   --disable-xkbcommon) xkbcommon="disabled"
1644   ;;
1645   --enable-plugins) plugins="yes"
1646   ;;
1647   --disable-plugins) plugins="no"
1648   ;;
1649   --enable-containers) use_containers="yes"
1650   ;;
1651   --disable-containers) use_containers="no"
1652   ;;
1653   --enable-fuzzing) fuzzing=yes
1654   ;;
1655   --disable-fuzzing) fuzzing=no
1656   ;;
1657   --gdb=*) gdb_bin="$optarg"
1658   ;;
1659   --enable-rng-none) rng_none=yes
1660   ;;
1661   --disable-rng-none) rng_none=no
1662   ;;
1663   --enable-keyring) secret_keyring="yes"
1664   ;;
1665   --disable-keyring) secret_keyring="no"
1666   ;;
1667   --enable-libdaxctl) libdaxctl=yes
1668   ;;
1669   --disable-libdaxctl) libdaxctl=no
1670   ;;
1671   *)
1672       echo "ERROR: unknown option $opt"
1673       echo "Try '$0 --help' for more information"
1674       exit 1
1675   ;;
1676   esac
1677 done
1678
1679 firmwarepath="${firmwarepath:-$prefix/share/qemu-firmware}"
1680 libdir="${libdir:-$prefix/lib}"
1681 libexecdir="${libexecdir:-$prefix/libexec}"
1682 includedir="${includedir:-$prefix/include}"
1683
1684 if test "$mingw32" = "yes" ; then
1685     mandir="$prefix"
1686     datadir="$prefix"
1687     docdir="$prefix"
1688     bindir="$prefix"
1689     sysconfdir="$prefix"
1690     local_statedir=
1691 else
1692     mandir="${mandir:-$prefix/share/man}"
1693     datadir="${datadir:-$prefix/share}"
1694     docdir="${docdir:-$prefix/share/doc}"
1695     bindir="${bindir:-$prefix/bin}"
1696     sysconfdir="${sysconfdir:-$prefix/etc}"
1697     local_statedir="${local_statedir:-$prefix/var}"
1698 fi
1699
1700 case "$cpu" in
1701     ppc)
1702            CPU_CFLAGS="-m32"
1703            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1704            ;;
1705     ppc64)
1706            CPU_CFLAGS="-m64"
1707            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1708            ;;
1709     sparc)
1710            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1711            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1712            ;;
1713     sparc64)
1714            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1715            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1716            ;;
1717     s390)
1718            CPU_CFLAGS="-m31"
1719            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1720            ;;
1721     s390x)
1722            CPU_CFLAGS="-m64"
1723            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1724            ;;
1725     i386)
1726            CPU_CFLAGS="-m32"
1727            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1728            ;;
1729     x86_64)
1730            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1731            # If we truly care, we should simply detect this case at
1732            # runtime and generate the fallback to serial emulation.
1733            CPU_CFLAGS="-m64 -mcx16"
1734            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1735            ;;
1736     x32)
1737            CPU_CFLAGS="-mx32"
1738            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1739            ;;
1740     # No special flags required for other host CPUs
1741 esac
1742
1743 eval "cross_cc_${cpu}=\$host_cc"
1744 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1745 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1746
1747 # For user-mode emulation the host arch has to be one we explicitly
1748 # support, even if we're using TCI.
1749 if [ "$ARCH" = "unknown" ]; then
1750   bsd_user="no"
1751   linux_user="no"
1752 fi
1753
1754 if [ "$bsd_user" = "no" -a "$linux_user" = "no" -a "$softmmu" = "no" ] ; then
1755   tcg="no"
1756 fi
1757
1758 default_target_list=""
1759
1760 mak_wilds=""
1761
1762 if [ "$softmmu" = "yes" ]; then
1763     mak_wilds="${mak_wilds} $source_path/default-configs/*-softmmu.mak"
1764 fi
1765 if [ "$linux_user" = "yes" ]; then
1766     mak_wilds="${mak_wilds} $source_path/default-configs/*-linux-user.mak"
1767 fi
1768 if [ "$bsd_user" = "yes" ]; then
1769     mak_wilds="${mak_wilds} $source_path/default-configs/*-bsd-user.mak"
1770 fi
1771
1772 if test -z "$target_list_exclude"; then
1773     for config in $mak_wilds; do
1774         default_target_list="${default_target_list} $(basename "$config" .mak)"
1775     done
1776 else
1777     exclude_list=$(echo "$target_list_exclude" | sed -e 's/,/ /g')
1778     for config in $mak_wilds; do
1779         target="$(basename "$config" .mak)"
1780         exclude="no"
1781         for excl in $exclude_list; do
1782             if test "$excl" = "$target"; then
1783                 exclude="yes"
1784                 break;
1785             fi
1786         done
1787         if test "$exclude" = "no"; then
1788             default_target_list="${default_target_list} $target"
1789         fi
1790     done
1791 fi
1792
1793 # Enumerate public trace backends for --help output
1794 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1795
1796 if test x"$show_help" = x"yes" ; then
1797 cat << EOF
1798
1799 Usage: configure [options]
1800 Options: [defaults in brackets after descriptions]
1801
1802 Standard options:
1803   --help                   print this message
1804   --prefix=PREFIX          install in PREFIX [$prefix]
1805   --interp-prefix=PREFIX   where to find shared libraries, etc.
1806                            use %M for cpu name [$interp_prefix]
1807   --target-list=LIST       set target list (default: build everything)
1808 $(echo Available targets: $default_target_list | \
1809   fold -s -w 53 | sed -e 's/^/                           /')
1810   --target-list-exclude=LIST exclude a set of targets from the default target-list
1811
1812 Advanced options (experts only):
1813   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
1814   --cc=CC                  use C compiler CC [$cc]
1815   --iasl=IASL              use ACPI compiler IASL [$iasl]
1816   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1817                            build time
1818   --cxx=CXX                use C++ compiler CXX [$cxx]
1819   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1820   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1821   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1822   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1823   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1824   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1825   --make=MAKE              use specified make [$make]
1826   --install=INSTALL        use specified install [$install]
1827   --python=PYTHON          use specified python [$python]
1828   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1829   --meson=MESON            use specified meson [$meson]
1830   --ninja=NINJA            use specified ninja [$ninja]
1831   --smbd=SMBD              use specified smbd [$smbd]
1832   --with-git=GIT           use specified git [$git]
1833   --static                 enable static build [$static]
1834   --mandir=PATH            install man pages in PATH
1835   --datadir=PATH           install firmware in PATH/$qemu_suffix
1836   --docdir=PATH            install documentation in PATH/$qemu_suffix
1837   --bindir=PATH            install binaries in PATH
1838   --libdir=PATH            install libraries in PATH
1839   --libexecdir=PATH        install helper binaries in PATH
1840   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1841   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1842   --firmwarepath=PATH      search PATH for firmware files
1843   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1844   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1845   --with-pkgversion=VERS   use specified string as sub-version of the package
1846   --enable-debug           enable common debug build options
1847   --enable-sanitizers      enable default sanitizers
1848   --enable-tsan            enable thread sanitizer
1849   --disable-strip          disable stripping binaries
1850   --disable-werror         disable compilation abort on warning
1851   --disable-stack-protector disable compiler-provided stack protection
1852   --audio-drv-list=LIST    set audio drivers list:
1853                            Available drivers: $audio_possible_drivers
1854   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1855   --block-drv-rw-whitelist=L
1856                            set block driver read-write whitelist
1857                            (affects only QEMU, not qemu-img)
1858   --block-drv-ro-whitelist=L
1859                            set block driver read-only whitelist
1860                            (affects only QEMU, not qemu-img)
1861   --enable-trace-backends=B Set trace backend
1862                            Available backends: $trace_backend_list
1863   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1864                            Default:trace-<pid>
1865   --disable-slirp          disable SLIRP userspace network connectivity
1866   --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)
1867   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1868   --oss-lib                path to OSS library
1869   --cpu=CPU                Build for host CPU [$cpu]
1870   --with-coroutine=BACKEND coroutine backend. Supported options:
1871                            ucontext, sigaltstack, windows
1872   --enable-gcov            enable test coverage analysis with gcov
1873   --disable-blobs          disable installing provided firmware blobs
1874   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1875   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1876   --tls-priority           default TLS protocol/cipher priority string
1877   --enable-gprof           QEMU profiling with gprof
1878   --enable-profiler        profiler support
1879   --enable-debug-stack-usage
1880                            track the maximum stack usage of stacks created by qemu_alloc_stack
1881   --enable-plugins
1882                            enable plugins via shared library loading
1883   --disable-containers     don't use containers for cross-building
1884   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1885
1886 Optional features, enabled with --enable-FEATURE and
1887 disabled with --disable-FEATURE, default is enabled if available:
1888
1889   system          all system emulation targets
1890   user            supported user emulation targets
1891   linux-user      all linux usermode emulation targets
1892   bsd-user        all BSD usermode emulation targets
1893   docs            build documentation
1894   guest-agent     build the QEMU Guest Agent
1895   guest-agent-msi build guest agent Windows MSI installation package
1896   pie             Position Independent Executables
1897   modules         modules support (non-Windows)
1898   module-upgrades try to load modules from alternate paths for upgrades
1899   debug-tcg       TCG debugging (default is disabled)
1900   debug-info      debugging information
1901   sparse          sparse checker
1902   safe-stack      SafeStack Stack Smash Protection. Depends on
1903                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1904
1905   gnutls          GNUTLS cryptography support
1906   nettle          nettle cryptography support
1907   gcrypt          libgcrypt cryptography support
1908   auth-pam        PAM access control
1909   sdl             SDL UI
1910   sdl-image       SDL Image support for icons
1911   gtk             gtk UI
1912   vte             vte support for the gtk UI
1913   curses          curses UI
1914   iconv           font glyph conversion support
1915   vnc             VNC UI support
1916   vnc-sasl        SASL encryption for VNC server
1917   vnc-jpeg        JPEG lossy compression for VNC server
1918   vnc-png         PNG compression for VNC server
1919   cocoa           Cocoa UI (Mac OS X only)
1920   virtfs          VirtFS
1921   mpath           Multipath persistent reservation passthrough
1922   xen             xen backend driver support
1923   xen-pci-passthrough    PCI passthrough support for Xen
1924   brlapi          BrlAPI (Braile)
1925   curl            curl connectivity
1926   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1927   fdt             fdt device tree
1928   kvm             KVM acceleration support
1929   hax             HAX acceleration support
1930   hvf             Hypervisor.framework acceleration support
1931   whpx            Windows Hypervisor Platform acceleration support
1932   rdma            Enable RDMA-based migration
1933   pvrdma          Enable PVRDMA support
1934   vde             support for vde network
1935   netmap          support for netmap network
1936   linux-aio       Linux AIO support
1937   linux-io-uring  Linux io_uring support
1938   cap-ng          libcap-ng support
1939   attr            attr and xattr support
1940   vhost-net       vhost-net kernel acceleration support
1941   vhost-vsock     virtio sockets device support
1942   vhost-scsi      vhost-scsi kernel target support
1943   vhost-crypto    vhost-user-crypto backend support
1944   vhost-kernel    vhost kernel backend support
1945   vhost-user      vhost-user backend support
1946   vhost-vdpa      vhost-vdpa kernel backend support
1947   spice           spice
1948   rbd             rados block device (rbd)
1949   libiscsi        iscsi support
1950   libnfs          nfs support
1951   smartcard       smartcard support (libcacard)
1952   u2f             U2F support (u2f-emu)
1953   libusb          libusb (for usb passthrough)
1954   live-block-migration   Block migration in the main migration stream
1955   usb-redir       usb network redirection support
1956   lzo             support of lzo compression library
1957   snappy          support of snappy compression library
1958   bzip2           support of bzip2 compression library
1959                   (for reading bzip2-compressed dmg images)
1960   lzfse           support of lzfse compression library
1961                   (for reading lzfse-compressed dmg images)
1962   zstd            support for zstd compression library
1963                   (for migration compression and qcow2 cluster compression)
1964   seccomp         seccomp support
1965   coroutine-pool  coroutine freelist (better performance)
1966   glusterfs       GlusterFS backend
1967   tpm             TPM support
1968   libssh          ssh block device support
1969   numa            libnuma support
1970   libxml2         for Parallels image format
1971   tcmalloc        tcmalloc support
1972   jemalloc        jemalloc support
1973   avx2            AVX2 optimization support
1974   avx512f         AVX512F optimization support
1975   replication     replication support
1976   opengl          opengl support
1977   virglrenderer   virgl rendering support
1978   xfsctl          xfsctl support
1979   qom-cast-debug  cast debugging support
1980   tools           build qemu-io, qemu-nbd and qemu-img tools
1981   bochs           bochs image format support
1982   cloop           cloop image format support
1983   dmg             dmg image format support
1984   qcow1           qcow v1 image format support
1985   vdi             vdi image format support
1986   vvfat           vvfat image format support
1987   qed             qed image format support
1988   parallels       parallels image format support
1989   sheepdog        sheepdog block driver support
1990   crypto-afalg    Linux AF_ALG crypto backend driver
1991   capstone        capstone disassembler support
1992   debug-mutex     mutex debugging support
1993   libpmem         libpmem support
1994   xkbcommon       xkbcommon support
1995   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1996   libdaxctl       libdaxctl support
1997
1998 NOTE: The object files are built at the place where configure is launched
1999 EOF
2000 exit 0
2001 fi
2002
2003 # Remove old dependency files to make sure that they get properly regenerated
2004 rm -f */config-devices.mak.d
2005
2006 if test -z "$python"
2007 then
2008     error_exit "Python not found. Use --python=/path/to/python"
2009 fi
2010
2011 # Note that if the Python conditional here evaluates True we will exit
2012 # with status 1 which is a shell 'false' value.
2013 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,5))'; then
2014   error_exit "Cannot use '$python', Python >= 3.5 is required." \
2015       "Use --python=/path/to/python to specify a supported Python."
2016 fi
2017
2018 # Preserve python version since some functionality is dependent on it
2019 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)
2020
2021 # Suppress writing compiled files
2022 python="$python -B"
2023
2024 if test -z "$meson"; then
2025     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.55.1; then
2026         meson=meson
2027     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
2028         meson=git
2029     elif test -e "${source_path}/meson/meson.py" ; then
2030         meson=internal
2031     else
2032         if test "$explicit_python" = yes; then
2033             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
2034         else
2035             error_exit "Meson not found.  Use --meson=/path/to/meson"
2036         fi
2037     fi
2038 else
2039     # Meson uses its own Python interpreter to invoke other Python scripts,
2040     # but the user wants to use the one they specified with --python.
2041     #
2042     # We do not want to override the distro Python interpreter (and sometimes
2043     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
2044     # just require --meson=git|internal together with --python.
2045     if test "$explicit_python" = yes; then
2046         case "$meson" in
2047             git | internal) ;;
2048             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
2049         esac
2050     fi
2051 fi
2052
2053 if test "$meson" = git; then
2054     git_submodules="${git_submodules} meson"
2055 fi
2056 if test "$git_update" = yes; then
2057     (cd "${source_path}" && GIT="$git" "./scripts/git-submodule.sh" update "$git_submodules")
2058 fi
2059
2060 case "$meson" in
2061     git | internal)
2062         if ! $python -c 'import pkg_resources' > /dev/null 2>&1; then
2063             error_exit "Python setuptools not found"
2064         fi
2065         meson="$python ${source_path}/meson/meson.py"
2066         ;;
2067     *) meson=$(command -v meson) ;;
2068 esac
2069
2070 # Probe for ninja (used for compdb)
2071
2072 if test -z "$ninja"; then
2073     for c in ninja ninja-build samu; do
2074         if has $c; then
2075             ninja=$(command -v "$c")
2076             break
2077         fi
2078     done
2079 fi
2080
2081 # Check that the C compiler works. Doing this here before testing
2082 # the host CPU ensures that we had a valid CC to autodetect the
2083 # $cpu var (and we should bail right here if that's not the case).
2084 # It also allows the help message to be printed without a CC.
2085 write_c_skeleton;
2086 if compile_object ; then
2087   : C compiler works ok
2088 else
2089     error_exit "\"$cc\" either does not exist or does not work"
2090 fi
2091 if ! compile_prog ; then
2092     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
2093 fi
2094
2095 # Now we have handled --enable-tcg-interpreter and know we're not just
2096 # printing the help message, bail out if the host CPU isn't supported.
2097 if test "$ARCH" = "unknown"; then
2098     if test "$tcg_interpreter" = "yes" ; then
2099         echo "Unsupported CPU = $cpu, will use TCG with TCI (experimental)"
2100     else
2101         error_exit "Unsupported CPU = $cpu, try --enable-tcg-interpreter"
2102     fi
2103 fi
2104
2105 # Consult white-list to determine whether to enable werror
2106 # by default.  Only enable by default for git builds
2107 if test -z "$werror" ; then
2108     if test -e "$source_path/.git" && \
2109         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
2110         werror="yes"
2111     else
2112         werror="no"
2113     fi
2114 fi
2115
2116 if test "$bogus_os" = "yes"; then
2117     # Now that we know that we're not printing the help and that
2118     # the compiler works (so the results of the check_defines we used
2119     # to identify the OS are reliable), if we didn't recognize the
2120     # host OS we should stop now.
2121     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
2122 fi
2123
2124 # Check whether the compiler matches our minimum requirements:
2125 cat > $TMPC << EOF
2126 #if defined(__clang_major__) && defined(__clang_minor__)
2127 # ifdef __apple_build_version__
2128 #  if __clang_major__ < 5 || (__clang_major__ == 5 && __clang_minor__ < 1)
2129 #   error You need at least XCode Clang v5.1 to compile QEMU
2130 #  endif
2131 # else
2132 #  if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 4)
2133 #   error You need at least Clang v3.4 to compile QEMU
2134 #  endif
2135 # endif
2136 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
2137 # if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
2138 #  error You need at least GCC v4.8 to compile QEMU
2139 # endif
2140 #else
2141 # error You either need GCC or Clang to compiler QEMU
2142 #endif
2143 int main (void) { return 0; }
2144 EOF
2145 if ! compile_prog "" "" ; then
2146     error_exit "You need at least GCC v4.8 or Clang v3.4 (or XCode Clang v5.1)"
2147 fi
2148
2149 # Accumulate -Wfoo and -Wno-bar separately.
2150 # We will list all of the enable flags first, and the disable flags second.
2151 # Note that we do not add -Werror, because that would enable it for all
2152 # configure tests. If a configure test failed due to -Werror this would
2153 # just silently disable some features, so it's too error prone.
2154
2155 warn_flags=
2156 add_to warn_flags -Wold-style-declaration
2157 add_to warn_flags -Wold-style-definition
2158 add_to warn_flags -Wtype-limits
2159 add_to warn_flags -Wformat-security
2160 add_to warn_flags -Wformat-y2k
2161 add_to warn_flags -Winit-self
2162 add_to warn_flags -Wignored-qualifiers
2163 add_to warn_flags -Wempty-body
2164 add_to warn_flags -Wnested-externs
2165 add_to warn_flags -Wendif-labels
2166 add_to warn_flags -Wexpansion-to-defined
2167
2168 nowarn_flags=
2169 add_to nowarn_flags -Wno-initializer-overrides
2170 add_to nowarn_flags -Wno-missing-include-dirs
2171 add_to nowarn_flags -Wno-shift-negative-value
2172 add_to nowarn_flags -Wno-string-plus-int
2173 add_to nowarn_flags -Wno-typedef-redefinition
2174 add_to nowarn_flags -Wno-tautological-type-limit-compare
2175 add_to nowarn_flags -Wno-psabi
2176
2177 gcc_flags="$warn_flags $nowarn_flags"
2178
2179 cc_has_warning_flag() {
2180     write_c_skeleton;
2181
2182     # Use the positive sense of the flag when testing for -Wno-wombat
2183     # support (gcc will happily accept the -Wno- form of unknown
2184     # warning options).
2185     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2186     compile_prog "-Werror $optflag" ""
2187 }
2188
2189 for flag in $gcc_flags; do
2190     if cc_has_warning_flag $flag ; then
2191         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2192     fi
2193 done
2194
2195 if test "$stack_protector" != "no"; then
2196   cat > $TMPC << EOF
2197 int main(int argc, char *argv[])
2198 {
2199     char arr[64], *p = arr, *c = argv[0];
2200     while (*c) {
2201         *p++ = *c++;
2202     }
2203     return 0;
2204 }
2205 EOF
2206   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2207   sp_on=0
2208   for flag in $gcc_flags; do
2209     # We need to check both a compile and a link, since some compiler
2210     # setups fail only on a .c->.o compile and some only at link time
2211     if compile_object "-Werror $flag" &&
2212        compile_prog "-Werror $flag" ""; then
2213       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2214       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2215       sp_on=1
2216       break
2217     fi
2218   done
2219   if test "$stack_protector" = yes; then
2220     if test $sp_on = 0; then
2221       error_exit "Stack protector not supported"
2222     fi
2223   fi
2224 fi
2225
2226 # Disable -Wmissing-braces on older compilers that warn even for
2227 # the "universal" C zero initializer {0}.
2228 cat > $TMPC << EOF
2229 struct {
2230   int a[2];
2231 } x = {0};
2232 EOF
2233 if compile_object "-Werror" "" ; then
2234   :
2235 else
2236   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2237 fi
2238
2239 # Our module code doesn't support Windows
2240 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2241   error_exit "Modules are not available for Windows"
2242 fi
2243
2244 # module_upgrades is only reasonable if modules are enabled
2245 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2246   error_exit "Can't enable module-upgrades as Modules are not enabled"
2247 fi
2248
2249 # Static linking is not possible with modules or PIE
2250 if test "$static" = "yes" ; then
2251   if test "$modules" = "yes" ; then
2252     error_exit "static and modules are mutually incompatible"
2253   fi
2254 fi
2255
2256 # Unconditional check for compiler __thread support
2257   cat > $TMPC << EOF
2258 static __thread int tls_var;
2259 int main(void) { return tls_var; }
2260 EOF
2261
2262 if ! compile_prog "-Werror" "" ; then
2263     error_exit "Your compiler does not support the __thread specifier for " \
2264         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2265 fi
2266
2267 cat > $TMPC << EOF
2268
2269 #ifdef __linux__
2270 #  define THREAD __thread
2271 #else
2272 #  define THREAD
2273 #endif
2274 static THREAD int tls_var;
2275 int main(void) { return tls_var; }
2276 EOF
2277
2278 # Check we support --no-pie first; we will need this for building ROMs.
2279 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2280   CFLAGS_NOPIE="-fno-pie"
2281   LDFLAGS_NOPIE="-no-pie"
2282 fi
2283
2284 if test "$static" = "yes"; then
2285   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
2286     CFLAGS="-fPIE -DPIE $CFLAGS"
2287     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
2288     pie="yes"
2289   elif test "$pie" = "yes"; then
2290     error_exit "-static-pie not available due to missing toolchain support"
2291   else
2292     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
2293     pie="no"
2294   fi
2295 elif test "$pie" = "no"; then
2296   CFLAGS="$CFLAGS_NOPIE $CFLAGS"
2297   LDFLAGS="$LDFLAGS_NOPIE $LDFLAGS"
2298 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2299   CFLAGS="-fPIE -DPIE $CFLAGS"
2300   LDFLAGS="-pie $LDFLAGS"
2301   pie="yes"
2302 elif test "$pie" = "yes"; then
2303   error_exit "PIE not available due to missing toolchain support"
2304 else
2305   echo "Disabling PIE due to missing toolchain support"
2306   pie="no"
2307 fi
2308
2309 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2310 # The combination is known as "full relro", because .got.plt is read-only too.
2311 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2312   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2313 fi
2314
2315 ##########################################
2316 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2317 # use i686 as default anyway, but for those that don't, an explicit
2318 # specification is necessary
2319
2320 if test "$cpu" = "i386"; then
2321   cat > $TMPC << EOF
2322 static int sfaa(int *ptr)
2323 {
2324   return __sync_fetch_and_and(ptr, 0);
2325 }
2326
2327 int main(void)
2328 {
2329   int val = 42;
2330   val = __sync_val_compare_and_swap(&val, 0, 1);
2331   sfaa(&val);
2332   return val;
2333 }
2334 EOF
2335   if ! compile_prog "" "" ; then
2336     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2337   fi
2338 fi
2339
2340 #########################################
2341 # Solaris specific configure tool chain decisions
2342
2343 if test "$solaris" = "yes" ; then
2344   if has $install; then
2345     :
2346   else
2347     error_exit "Solaris install program not found. Use --install=/usr/ucb/install or" \
2348         "install fileutils from www.blastwave.org using pkg-get -i fileutils" \
2349         "to get ginstall which is used by default (which lives in /opt/csw/bin)"
2350   fi
2351   if test "$(path_of $install)" = "/usr/sbin/install" ; then
2352     error_exit "Solaris /usr/sbin/install is not an appropriate install program." \
2353         "try ginstall from the GNU fileutils available from www.blastwave.org" \
2354         "using pkg-get -i fileutils, or use --install=/usr/ucb/install"
2355   fi
2356   if has ar; then
2357     :
2358   else
2359     if test -f /usr/ccs/bin/ar ; then
2360       error_exit "No path includes ar" \
2361           "Add /usr/ccs/bin to your path and rerun configure"
2362     fi
2363     error_exit "No path includes ar"
2364   fi
2365 fi
2366
2367 if test -z "${target_list+xxx}" ; then
2368     for target in $default_target_list; do
2369         supported_target $target 2>/dev/null && \
2370             target_list="$target_list $target"
2371     done
2372     target_list="${target_list# }"
2373 else
2374     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2375     for target in $target_list; do
2376         # Check that we recognised the target name; this allows a more
2377         # friendly error message than if we let it fall through.
2378         case " $default_target_list " in
2379             *" $target "*)
2380                 ;;
2381             *)
2382                 error_exit "Unknown target name '$target'"
2383                 ;;
2384         esac
2385         supported_target $target || exit 1
2386     done
2387 fi
2388
2389 # see if system emulation was really requested
2390 case " $target_list " in
2391   *"-softmmu "*) softmmu=yes
2392   ;;
2393   *) softmmu=no
2394   ;;
2395 esac
2396
2397 for target in $target_list; do
2398   case "$target" in
2399     arm-softmmu | aarch64-softmmu | i386-softmmu | x86_64-softmmu)
2400       edk2_blobs="yes"
2401       ;;
2402   esac
2403 done
2404 # The EDK2 binaries are compressed with bzip2
2405 if test "$edk2_blobs" = "yes" && ! has bzip2; then
2406   error_exit "The bzip2 program is required for building QEMU"
2407 fi
2408
2409 feature_not_found() {
2410   feature=$1
2411   remedy=$2
2412
2413   error_exit "User requested feature $feature" \
2414       "configure was not able to find it." \
2415       "$remedy"
2416 }
2417
2418 # ---
2419 # big/little endian test
2420 cat > $TMPC << EOF
2421 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2422 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2423 extern int foo(short *, short *);
2424 int main(int argc, char *argv[]) {
2425     return foo(big_endian, little_endian);
2426 }
2427 EOF
2428
2429 if compile_object ; then
2430     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2431         bigendian="yes"
2432     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2433         bigendian="no"
2434     else
2435         echo big/little test failed
2436     fi
2437 else
2438     echo big/little test failed
2439 fi
2440
2441 ##########################################
2442 # system tools
2443 if test -z "$want_tools"; then
2444     if test "$softmmu" = "no"; then
2445         want_tools=no
2446     else
2447         want_tools=yes
2448     fi
2449 fi
2450
2451 ##########################################
2452 # cocoa implies not SDL or GTK
2453 # (the cocoa UI code currently assumes it is always the active UI
2454 # and doesn't interact well with other UI frontend code)
2455 if test "$cocoa" = "yes"; then
2456     if test "$sdl" = "yes"; then
2457         error_exit "Cocoa and SDL UIs cannot both be enabled at once"
2458     fi
2459     if test "$gtk" = "yes"; then
2460         error_exit "Cocoa and GTK UIs cannot both be enabled at once"
2461     fi
2462     gtk=no
2463     sdl=disabled
2464 fi
2465
2466 # Some versions of Mac OS X incorrectly define SIZE_MAX
2467 cat > $TMPC << EOF
2468 #include <stdint.h>
2469 #include <stdio.h>
2470 int main(int argc, char *argv[]) {
2471     return printf("%zu", SIZE_MAX);
2472 }
2473 EOF
2474 have_broken_size_max=no
2475 if ! compile_object -Werror ; then
2476     have_broken_size_max=yes
2477 fi
2478
2479 ##########################################
2480 # L2TPV3 probe
2481
2482 cat > $TMPC <<EOF
2483 #include <sys/socket.h>
2484 #include <linux/ip.h>
2485 int main(void) { return sizeof(struct mmsghdr); }
2486 EOF
2487 if compile_prog "" "" ; then
2488   l2tpv3=yes
2489 else
2490   l2tpv3=no
2491 fi
2492
2493 if check_include "pty.h" ; then
2494   pty_h=yes
2495 else
2496   pty_h=no
2497 fi
2498
2499 cat > $TMPC <<EOF
2500 #include <sys/mman.h>
2501 int main(int argc, char *argv[]) {
2502     return mlockall(MCL_FUTURE);
2503 }
2504 EOF
2505 if compile_prog "" "" ; then
2506   have_mlockall=yes
2507 else
2508   have_mlockall=no
2509 fi
2510
2511 #########################################
2512 # vhost interdependencies and host support
2513
2514 # vhost backends
2515 test "$vhost_user" = "" && vhost_user=yes
2516 if test "$vhost_user" = "yes" && test "$mingw32" = "yes"; then
2517   error_exit "vhost-user isn't available on win32"
2518 fi
2519 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2520 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2521   error_exit "vhost-vdpa is only available on Linux"
2522 fi
2523 test "$vhost_kernel" = "" && vhost_kernel=$linux
2524 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2525   error_exit "vhost-kernel is only available on Linux"
2526 fi
2527
2528 # vhost-kernel devices
2529 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2530 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2531   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2532 fi
2533 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2534 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2535   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2536 fi
2537
2538 # vhost-user backends
2539 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2540 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2541   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2542 fi
2543 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2544 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2545   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2546 fi
2547 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2548 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2549   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2550 fi
2551 #vhost-vdpa backends
2552 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2553 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2554   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2555 fi
2556
2557 # OR the vhost-kernel and vhost-user values for simplicity
2558 if test "$vhost_net" = ""; then
2559   test "$vhost_net_user" = "yes" && vhost_net=yes
2560   test "$vhost_kernel" = "yes" && vhost_net=yes
2561 fi
2562
2563 ##########################################
2564 # MinGW / Mingw-w64 localtime_r/gmtime_r check
2565
2566 if test "$mingw32" = "yes"; then
2567     # Some versions of MinGW / Mingw-w64 lack localtime_r
2568     # and gmtime_r entirely.
2569     #
2570     # Some versions of Mingw-w64 define a macro for
2571     # localtime_r/gmtime_r.
2572     #
2573     # Some versions of Mingw-w64 will define functions
2574     # for localtime_r/gmtime_r, but only if you have
2575     # _POSIX_THREAD_SAFE_FUNCTIONS defined. For fun
2576     # though, unistd.h and pthread.h both define
2577     # that for you.
2578     #
2579     # So this #undef localtime_r and #include <unistd.h>
2580     # are not in fact redundant.
2581 cat > $TMPC << EOF
2582 #include <unistd.h>
2583 #include <time.h>
2584 #undef localtime_r
2585 int main(void) { localtime_r(NULL, NULL); return 0; }
2586 EOF
2587     if compile_prog "" "" ; then
2588         localtime_r="yes"
2589     else
2590         localtime_r="no"
2591     fi
2592 fi
2593
2594 ##########################################
2595 # pkg-config probe
2596
2597 if ! has "$pkg_config_exe"; then
2598   error_exit "pkg-config binary '$pkg_config_exe' not found"
2599 fi
2600
2601 ##########################################
2602 # NPTL probe
2603
2604 if test "$linux_user" = "yes"; then
2605   cat > $TMPC <<EOF
2606 #include <sched.h>
2607 #include <linux/futex.h>
2608 int main(void) {
2609 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2610 #error bork
2611 #endif
2612   return 0;
2613 }
2614 EOF
2615   if ! compile_object ; then
2616     feature_not_found "nptl" "Install glibc and linux kernel headers."
2617   fi
2618 fi
2619
2620 ##########################################
2621 # lzo check
2622
2623 if test "$lzo" != "no" ; then
2624     cat > $TMPC << EOF
2625 #include <lzo/lzo1x.h>
2626 int main(void) { lzo_version(); return 0; }
2627 EOF
2628     if compile_prog "" "-llzo2" ; then
2629         lzo_libs="-llzo2"
2630         lzo="yes"
2631     else
2632         if test "$lzo" = "yes"; then
2633             feature_not_found "liblzo2" "Install liblzo2 devel"
2634         fi
2635         lzo="no"
2636     fi
2637 fi
2638
2639 ##########################################
2640 # snappy check
2641
2642 if test "$snappy" != "no" ; then
2643     cat > $TMPC << EOF
2644 #include <snappy-c.h>
2645 int main(void) { snappy_max_compressed_length(4096); return 0; }
2646 EOF
2647     if compile_prog "" "-lsnappy" ; then
2648         snappy_libs='-lsnappy'
2649         snappy="yes"
2650     else
2651         if test "$snappy" = "yes"; then
2652             feature_not_found "libsnappy" "Install libsnappy devel"
2653         fi
2654         snappy="no"
2655     fi
2656 fi
2657
2658 ##########################################
2659 # bzip2 check
2660
2661 if test "$bzip2" != "no" ; then
2662     cat > $TMPC << EOF
2663 #include <bzlib.h>
2664 int main(void) { BZ2_bzlibVersion(); return 0; }
2665 EOF
2666     if compile_prog "" "-lbz2" ; then
2667         bzip2="yes"
2668     else
2669         if test "$bzip2" = "yes"; then
2670             feature_not_found "libbzip2" "Install libbzip2 devel"
2671         fi
2672         bzip2="no"
2673     fi
2674 fi
2675
2676 ##########################################
2677 # lzfse check
2678
2679 if test "$lzfse" != "no" ; then
2680     cat > $TMPC << EOF
2681 #include <lzfse.h>
2682 int main(void) { lzfse_decode_scratch_size(); return 0; }
2683 EOF
2684     if compile_prog "" "-llzfse" ; then
2685         lzfse="yes"
2686     else
2687         if test "$lzfse" = "yes"; then
2688             feature_not_found "lzfse" "Install lzfse devel"
2689         fi
2690         lzfse="no"
2691     fi
2692 fi
2693
2694 ##########################################
2695 # zstd check
2696
2697 if test "$zstd" != "no" ; then
2698     libzstd_minver="1.4.0"
2699     if $pkg_config --atleast-version=$libzstd_minver libzstd ; then
2700         zstd_cflags="$($pkg_config --cflags libzstd)"
2701         zstd_libs="$($pkg_config --libs libzstd)"
2702         zstd="yes"
2703     else
2704         if test "$zstd" = "yes" ; then
2705             feature_not_found "libzstd" "Install libzstd devel"
2706         fi
2707         zstd="no"
2708     fi
2709 fi
2710
2711 ##########################################
2712 # libseccomp check
2713
2714 if test "$seccomp" != "no" ; then
2715     libseccomp_minver="2.3.0"
2716     if $pkg_config --atleast-version=$libseccomp_minver libseccomp ; then
2717         seccomp_cflags="$($pkg_config --cflags libseccomp)"
2718         seccomp_libs="$($pkg_config --libs libseccomp)"
2719         seccomp="yes"
2720     else
2721         if test "$seccomp" = "yes" ; then
2722             feature_not_found "libseccomp" \
2723                  "Install libseccomp devel >= $libseccomp_minver"
2724         fi
2725         seccomp="no"
2726     fi
2727 fi
2728 ##########################################
2729 # xen probe
2730
2731 if test "$xen" != "no" ; then
2732   # Check whether Xen library path is specified via --extra-ldflags to avoid
2733   # overriding this setting with pkg-config output. If not, try pkg-config
2734   # to obtain all needed flags.
2735
2736   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2737      $pkg_config --exists xencontrol ; then
2738     xen_ctrl_version="$(printf '%d%02d%02d' \
2739       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2740     xen=yes
2741     xen_pc="xencontrol xenstore xenguest xenforeignmemory xengnttab"
2742     xen_pc="$xen_pc xenevtchn xendevicemodel"
2743     if $pkg_config --exists xentoolcore; then
2744       xen_pc="$xen_pc xentoolcore"
2745     fi
2746     QEMU_CFLAGS="$QEMU_CFLAGS $($pkg_config --cflags $xen_pc)"
2747     xen_cflags="$($pkg_config --cflags $xen_pc)"
2748     xen_libs="$($pkg_config --libs $xen_pc)"
2749   else
2750
2751     xen_libs="-lxenstore -lxenctrl -lxenguest"
2752     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2753
2754     # First we test whether Xen headers and libraries are available.
2755     # If no, we are done and there is no Xen support.
2756     # If yes, more tests are run to detect the Xen version.
2757
2758     # Xen (any)
2759     cat > $TMPC <<EOF
2760 #include <xenctrl.h>
2761 int main(void) {
2762   return 0;
2763 }
2764 EOF
2765     if ! compile_prog "" "$xen_libs" ; then
2766       # Xen not found
2767       if test "$xen" = "yes" ; then
2768         feature_not_found "xen" "Install xen devel"
2769       fi
2770       xen=no
2771
2772     # Xen unstable
2773     elif
2774         cat > $TMPC <<EOF &&
2775 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2776 #define __XEN_TOOLS__
2777 #include <xendevicemodel.h>
2778 #include <xenforeignmemory.h>
2779 int main(void) {
2780   xendevicemodel_handle *xd;
2781   xenforeignmemory_handle *xfmem;
2782
2783   xd = xendevicemodel_open(0, 0);
2784   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2785
2786   xfmem = xenforeignmemory_open(0, 0);
2787   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2788
2789   return 0;
2790 }
2791 EOF
2792         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2793       then
2794       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2795       xen_ctrl_version=41100
2796       xen=yes
2797     elif
2798         cat > $TMPC <<EOF &&
2799 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2800 #include <xenforeignmemory.h>
2801 #include <xentoolcore.h>
2802 int main(void) {
2803   xenforeignmemory_handle *xfmem;
2804
2805   xfmem = xenforeignmemory_open(0, 0);
2806   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2807   xentoolcore_restrict_all(0);
2808
2809   return 0;
2810 }
2811 EOF
2812         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2813       then
2814       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2815       xen_ctrl_version=41000
2816       xen=yes
2817     elif
2818         cat > $TMPC <<EOF &&
2819 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2820 #define __XEN_TOOLS__
2821 #include <xendevicemodel.h>
2822 int main(void) {
2823   xendevicemodel_handle *xd;
2824
2825   xd = xendevicemodel_open(0, 0);
2826   xendevicemodel_close(xd);
2827
2828   return 0;
2829 }
2830 EOF
2831         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2832       then
2833       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2834       xen_ctrl_version=40900
2835       xen=yes
2836     elif
2837         cat > $TMPC <<EOF &&
2838 /*
2839  * If we have stable libs the we don't want the libxc compat
2840  * layers, regardless of what CFLAGS we may have been given.
2841  *
2842  * Also, check if xengnttab_grant_copy_segment_t is defined and
2843  * grant copy operation is implemented.
2844  */
2845 #undef XC_WANT_COMPAT_EVTCHN_API
2846 #undef XC_WANT_COMPAT_GNTTAB_API
2847 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2848 #include <xenctrl.h>
2849 #include <xenstore.h>
2850 #include <xenevtchn.h>
2851 #include <xengnttab.h>
2852 #include <xenforeignmemory.h>
2853 #include <stdint.h>
2854 #include <xen/hvm/hvm_info_table.h>
2855 #if !defined(HVM_MAX_VCPUS)
2856 # error HVM_MAX_VCPUS not defined
2857 #endif
2858 int main(void) {
2859   xc_interface *xc = NULL;
2860   xenforeignmemory_handle *xfmem;
2861   xenevtchn_handle *xe;
2862   xengnttab_handle *xg;
2863   xengnttab_grant_copy_segment_t* seg = NULL;
2864
2865   xs_daemon_open();
2866
2867   xc = xc_interface_open(0, 0, 0);
2868   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2869   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2870   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2871   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2872
2873   xfmem = xenforeignmemory_open(0, 0);
2874   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2875
2876   xe = xenevtchn_open(0, 0);
2877   xenevtchn_fd(xe);
2878
2879   xg = xengnttab_open(0, 0);
2880   xengnttab_grant_copy(xg, 0, seg);
2881
2882   return 0;
2883 }
2884 EOF
2885         compile_prog "" "$xen_libs $xen_stable_libs"
2886       then
2887       xen_ctrl_version=40800
2888       xen=yes
2889     elif
2890         cat > $TMPC <<EOF &&
2891 /*
2892  * If we have stable libs the we don't want the libxc compat
2893  * layers, regardless of what CFLAGS we may have been given.
2894  */
2895 #undef XC_WANT_COMPAT_EVTCHN_API
2896 #undef XC_WANT_COMPAT_GNTTAB_API
2897 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2898 #include <xenctrl.h>
2899 #include <xenstore.h>
2900 #include <xenevtchn.h>
2901 #include <xengnttab.h>
2902 #include <xenforeignmemory.h>
2903 #include <stdint.h>
2904 #include <xen/hvm/hvm_info_table.h>
2905 #if !defined(HVM_MAX_VCPUS)
2906 # error HVM_MAX_VCPUS not defined
2907 #endif
2908 int main(void) {
2909   xc_interface *xc = NULL;
2910   xenforeignmemory_handle *xfmem;
2911   xenevtchn_handle *xe;
2912   xengnttab_handle *xg;
2913
2914   xs_daemon_open();
2915
2916   xc = xc_interface_open(0, 0, 0);
2917   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2918   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2919   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2920   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2921
2922   xfmem = xenforeignmemory_open(0, 0);
2923   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2924
2925   xe = xenevtchn_open(0, 0);
2926   xenevtchn_fd(xe);
2927
2928   xg = xengnttab_open(0, 0);
2929   xengnttab_map_grant_ref(xg, 0, 0, 0);
2930
2931   return 0;
2932 }
2933 EOF
2934         compile_prog "" "$xen_libs $xen_stable_libs"
2935       then
2936       xen_ctrl_version=40701
2937       xen=yes
2938
2939     # Xen 4.6
2940     elif
2941         cat > $TMPC <<EOF &&
2942 #include <xenctrl.h>
2943 #include <xenstore.h>
2944 #include <stdint.h>
2945 #include <xen/hvm/hvm_info_table.h>
2946 #if !defined(HVM_MAX_VCPUS)
2947 # error HVM_MAX_VCPUS not defined
2948 #endif
2949 int main(void) {
2950   xc_interface *xc;
2951   xs_daemon_open();
2952   xc = xc_interface_open(0, 0, 0);
2953   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2954   xc_gnttab_open(NULL, 0);
2955   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2956   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2957   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2958   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2959   return 0;
2960 }
2961 EOF
2962         compile_prog "" "$xen_libs"
2963       then
2964       xen_ctrl_version=40600
2965       xen=yes
2966
2967     # Xen 4.5
2968     elif
2969         cat > $TMPC <<EOF &&
2970 #include <xenctrl.h>
2971 #include <xenstore.h>
2972 #include <stdint.h>
2973 #include <xen/hvm/hvm_info_table.h>
2974 #if !defined(HVM_MAX_VCPUS)
2975 # error HVM_MAX_VCPUS not defined
2976 #endif
2977 int main(void) {
2978   xc_interface *xc;
2979   xs_daemon_open();
2980   xc = xc_interface_open(0, 0, 0);
2981   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2982   xc_gnttab_open(NULL, 0);
2983   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2984   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2985   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2986   return 0;
2987 }
2988 EOF
2989         compile_prog "" "$xen_libs"
2990       then
2991       xen_ctrl_version=40500
2992       xen=yes
2993
2994     elif
2995         cat > $TMPC <<EOF &&
2996 #include <xenctrl.h>
2997 #include <xenstore.h>
2998 #include <stdint.h>
2999 #include <xen/hvm/hvm_info_table.h>
3000 #if !defined(HVM_MAX_VCPUS)
3001 # error HVM_MAX_VCPUS not defined
3002 #endif
3003 int main(void) {
3004   xc_interface *xc;
3005   xs_daemon_open();
3006   xc = xc_interface_open(0, 0, 0);
3007   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
3008   xc_gnttab_open(NULL, 0);
3009   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
3010   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
3011   return 0;
3012 }
3013 EOF
3014         compile_prog "" "$xen_libs"
3015       then
3016       xen_ctrl_version=40200
3017       xen=yes
3018
3019     else
3020       if test "$xen" = "yes" ; then
3021         feature_not_found "xen (unsupported version)" \
3022                           "Install a supported xen (xen 4.2 or newer)"
3023       fi
3024       xen=no
3025     fi
3026
3027     if test "$xen" = yes; then
3028       if test $xen_ctrl_version -ge 40701  ; then
3029         xen_libs="$xen_libs $xen_stable_libs "
3030       fi
3031     fi
3032   fi
3033 fi
3034
3035 if test "$xen_pci_passthrough" != "no"; then
3036   if test "$xen" = "yes" && test "$linux" = "yes"; then
3037     xen_pci_passthrough=yes
3038   else
3039     if test "$xen_pci_passthrough" = "yes"; then
3040       error_exit "User requested feature Xen PCI Passthrough" \
3041           " but this feature requires /sys from Linux"
3042     fi
3043     xen_pci_passthrough=no
3044   fi
3045 fi
3046
3047 ##########################################
3048 # Windows Hypervisor Platform accelerator (WHPX) check
3049 if test "$whpx" != "no" ; then
3050     if check_include "WinHvPlatform.h" && check_include "WinHvEmulation.h"; then
3051         whpx="yes"
3052     else
3053         if test "$whpx" = "yes"; then
3054             feature_not_found "WinHvPlatform" "WinHvEmulation is not installed"
3055         fi
3056         whpx="no"
3057     fi
3058 fi
3059
3060 ##########################################
3061 # gettext probe
3062 if test "$gettext" != "false" ; then
3063   if has xgettext; then
3064     gettext=true
3065   else
3066     if test "$gettext" = "true" ; then
3067       feature_not_found "gettext" "Install xgettext binary"
3068     fi
3069     gettext=false
3070   fi
3071 fi
3072
3073 ##########################################
3074 # Sparse probe
3075 if test "$sparse" != "no" ; then
3076   if has sparse; then
3077     sparse=yes
3078   else
3079     if test "$sparse" = "yes" ; then
3080       feature_not_found "sparse" "Install sparse binary"
3081     fi
3082     sparse=no
3083   fi
3084 fi
3085
3086 ##########################################
3087 # X11 probe
3088 if $pkg_config --exists "x11"; then
3089     have_x11=yes
3090     x11_cflags=$($pkg_config --cflags x11)
3091     x11_libs=$($pkg_config --libs x11)
3092 fi
3093
3094 ##########################################
3095 # GTK probe
3096
3097 if test "$gtk" != "no"; then
3098     gtkpackage="gtk+-3.0"
3099     gtkx11package="gtk+-x11-3.0"
3100     gtkversion="3.22.0"
3101     if $pkg_config --exists "$gtkpackage >= $gtkversion"; then
3102         gtk_cflags=$($pkg_config --cflags $gtkpackage)
3103         gtk_libs=$($pkg_config --libs $gtkpackage)
3104         gtk_version=$($pkg_config --modversion $gtkpackage)
3105         if $pkg_config --exists "$gtkx11package >= $gtkversion"; then
3106             need_x11=yes
3107             gtk_cflags="$gtk_cflags $x11_cflags"
3108             gtk_libs="$gtk_libs $x11_libs"
3109         fi
3110         gtk="yes"
3111     elif test "$gtk" = "yes"; then
3112         feature_not_found "gtk" "Install gtk3-devel"
3113     else
3114         gtk="no"
3115     fi
3116 fi
3117
3118
3119 ##########################################
3120 # GNUTLS probe
3121
3122 if test "$gnutls" != "no"; then
3123     pass="no"
3124     if $pkg_config --exists "gnutls >= 3.1.18"; then
3125         gnutls_cflags=$($pkg_config --cflags gnutls)
3126         gnutls_libs=$($pkg_config --libs gnutls)
3127         # Packaging for the static libraries is not always correct.
3128         # At least ubuntu 18.04 ships only shared libraries.
3129         write_c_skeleton
3130         if compile_prog "" "$gnutls_libs" ; then
3131             LIBS="$gnutls_libs $LIBS"
3132             QEMU_CFLAGS="$QEMU_CFLAGS $gnutls_cflags"
3133             pass="yes"
3134         fi
3135     fi
3136     if test "$pass" = "no" && test "$gnutls" = "yes"; then
3137         feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
3138     else
3139         gnutls="$pass"
3140     fi
3141 fi
3142
3143
3144 # If user didn't give a --disable/enable-gcrypt flag,
3145 # then mark as disabled if user requested nettle
3146 # explicitly
3147 if test -z "$gcrypt"
3148 then
3149     if test "$nettle" = "yes"
3150     then
3151         gcrypt="no"
3152     fi
3153 fi
3154
3155 # If user didn't give a --disable/enable-nettle flag,
3156 # then mark as disabled if user requested gcrypt
3157 # explicitly
3158 if test -z "$nettle"
3159 then
3160     if test "$gcrypt" = "yes"
3161     then
3162         nettle="no"
3163     fi
3164 fi
3165
3166 has_libgcrypt() {
3167     if ! has "libgcrypt-config"
3168     then
3169         return 1
3170     fi
3171
3172     if test -n "$cross_prefix"
3173     then
3174         host=$(libgcrypt-config --host)
3175         if test "$host-" != $cross_prefix
3176         then
3177             return 1
3178         fi
3179     fi
3180
3181     maj=`libgcrypt-config --version | awk -F . '{print $1}'`
3182     min=`libgcrypt-config --version | awk -F . '{print $2}'`
3183
3184     if test $maj != 1 || test $min -lt 5
3185     then
3186        return 1
3187     fi
3188
3189     return 0
3190 }
3191
3192
3193 if test "$nettle" != "no"; then
3194     pass="no"
3195     if $pkg_config --exists "nettle >= 2.7.1"; then
3196         nettle_cflags=$($pkg_config --cflags nettle)
3197         nettle_libs=$($pkg_config --libs nettle)
3198         nettle_version=$($pkg_config --modversion nettle)
3199         # Link test to make sure the given libraries work (e.g for static).
3200         write_c_skeleton
3201         if compile_prog "" "$nettle_libs" ; then
3202             LIBS="$nettle_libs $LIBS"
3203             QEMU_CFLAGS="$QEMU_CFLAGS $nettle_cflags"
3204             if test -z "$gcrypt"; then
3205                gcrypt="no"
3206             fi
3207             pass="yes"
3208         fi
3209     fi
3210     if test "$pass" = "yes"
3211     then
3212         cat > $TMPC << EOF
3213 #include <nettle/xts.h>
3214 int main(void) {
3215   return 0;
3216 }
3217 EOF
3218         if compile_prog "$nettle_cflags" "$nettle_libs" ; then
3219             nettle_xts=yes
3220             qemu_private_xts=no
3221         fi
3222     fi
3223     if test "$pass" = "no" && test "$nettle" = "yes"; then
3224         feature_not_found "nettle" "Install nettle devel >= 2.7.1"
3225     else
3226         nettle="$pass"
3227     fi
3228 fi
3229
3230 if test "$gcrypt" != "no"; then
3231     pass="no"
3232     if has_libgcrypt; then
3233         gcrypt_cflags=$(libgcrypt-config --cflags)
3234         gcrypt_libs=$(libgcrypt-config --libs)
3235         # Debian has removed -lgpg-error from libgcrypt-config
3236         # as it "spreads unnecessary dependencies" which in
3237         # turn breaks static builds...
3238         if test "$static" = "yes"
3239         then
3240             gcrypt_libs="$gcrypt_libs -lgpg-error"
3241         fi
3242
3243         # Link test to make sure the given libraries work (e.g for static).
3244         write_c_skeleton
3245         if compile_prog "" "$gcrypt_libs" ; then
3246             LIBS="$gcrypt_libs $LIBS"
3247             QEMU_CFLAGS="$QEMU_CFLAGS $gcrypt_cflags"
3248             pass="yes"
3249         fi
3250     fi
3251     if test "$pass" = "yes"; then
3252         gcrypt="yes"
3253         cat > $TMPC << EOF
3254 #include <gcrypt.h>
3255 int main(void) {
3256   gcry_mac_hd_t handle;
3257   gcry_mac_open(&handle, GCRY_MAC_HMAC_MD5,
3258                 GCRY_MAC_FLAG_SECURE, NULL);
3259   return 0;
3260 }
3261 EOF
3262         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3263             gcrypt_hmac=yes
3264         fi
3265         cat > $TMPC << EOF
3266 #include <gcrypt.h>
3267 int main(void) {
3268   gcry_cipher_hd_t handle;
3269   gcry_cipher_open(&handle, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_XTS, 0);
3270   return 0;
3271 }
3272 EOF
3273         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3274             gcrypt_xts=yes
3275             qemu_private_xts=no
3276         fi
3277     elif test "$gcrypt" = "yes"; then
3278         feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
3279     else
3280         gcrypt="no"
3281     fi
3282 fi
3283
3284
3285 if test "$gcrypt" = "yes" && test "$nettle" = "yes"
3286 then
3287     error_exit "Only one of gcrypt & nettle can be enabled"
3288 fi
3289
3290 ##########################################
3291 # libtasn1 - only for the TLS creds/session test suite
3292
3293 tasn1=yes
3294 tasn1_cflags=""
3295 tasn1_libs=""
3296 if $pkg_config --exists "libtasn1"; then
3297     tasn1_cflags=$($pkg_config --cflags libtasn1)
3298     tasn1_libs=$($pkg_config --libs libtasn1)
3299 else
3300     tasn1=no
3301 fi
3302
3303
3304 ##########################################
3305 # PAM probe
3306
3307 if test "$auth_pam" != "no"; then
3308     cat > $TMPC <<EOF
3309 #include <security/pam_appl.h>
3310 #include <stdio.h>
3311 int main(void) {
3312    const char *service_name = "qemu";
3313    const char *user = "frank";
3314    const struct pam_conv pam_conv = { 0 };
3315    pam_handle_t *pamh = NULL;
3316    pam_start(service_name, user, &pam_conv, &pamh);
3317    return 0;
3318 }
3319 EOF
3320     if compile_prog "" "-lpam" ; then
3321         auth_pam=yes
3322     else
3323         if test "$auth_pam" = "yes"; then
3324             feature_not_found "PAM" "Install PAM development package"
3325         else
3326             auth_pam=no
3327         fi
3328     fi
3329 fi
3330
3331 ##########################################
3332 # getifaddrs (for tests/test-io-channel-socket )
3333
3334 have_ifaddrs_h=yes
3335 if ! check_include "ifaddrs.h" ; then
3336   have_ifaddrs_h=no
3337 fi
3338
3339 #########################################
3340 # libdrm check
3341 have_drm_h=no
3342 if check_include "libdrm/drm.h" ; then
3343     have_drm_h=yes
3344 fi
3345
3346 #########################################
3347 # sys/signal.h check
3348 have_sys_signal_h=no
3349 if check_include "sys/signal.h" ; then
3350   have_sys_signal_h=yes
3351 fi
3352
3353 ##########################################
3354 # VTE probe
3355
3356 if test "$vte" != "no"; then
3357     vteminversion="0.32.0"
3358     if $pkg_config --exists "vte-2.91"; then
3359       vtepackage="vte-2.91"
3360     else
3361       vtepackage="vte-2.90"
3362     fi
3363     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
3364         vte_cflags=$($pkg_config --cflags $vtepackage)
3365         vte_libs=$($pkg_config --libs $vtepackage)
3366         vteversion=$($pkg_config --modversion $vtepackage)
3367         vte="yes"
3368     elif test "$vte" = "yes"; then
3369         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
3370     else
3371         vte="no"
3372     fi
3373 fi
3374
3375 ##########################################
3376 # RDMA needs OpenFabrics libraries
3377 if test "$rdma" != "no" ; then
3378   cat > $TMPC <<EOF
3379 #include <rdma/rdma_cma.h>
3380 int main(void) { return 0; }
3381 EOF
3382   rdma_libs="-lrdmacm -libverbs -libumad"
3383   if compile_prog "" "$rdma_libs" ; then
3384     rdma="yes"
3385   else
3386     if test "$rdma" = "yes" ; then
3387         error_exit \
3388             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
3389             " Your options:" \
3390             "  (1) Fast: Install infiniband packages (devel) from your distro." \
3391             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
3392             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
3393     fi
3394     rdma="no"
3395   fi
3396 fi
3397
3398 ##########################################
3399 # PVRDMA detection
3400
3401 cat > $TMPC <<EOF &&
3402 #include <sys/mman.h>
3403
3404 int
3405 main(void)
3406 {
3407     char buf = 0;
3408     void *addr = &buf;
3409     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3410
3411     return 0;
3412 }
3413 EOF
3414
3415 if test "$rdma" = "yes" ; then
3416     case "$pvrdma" in
3417     "")
3418         if compile_prog "" ""; then
3419             pvrdma="yes"
3420         else
3421             pvrdma="no"
3422         fi
3423         ;;
3424     "yes")
3425         if ! compile_prog "" ""; then
3426             error_exit "PVRDMA is not supported since mremap is not implemented"
3427         fi
3428         pvrdma="yes"
3429         ;;
3430     "no")
3431         pvrdma="no"
3432         ;;
3433     esac
3434 else
3435     if test "$pvrdma" = "yes" ; then
3436         error_exit "PVRDMA requires rdma suppport"
3437     fi
3438     pvrdma="no"
3439 fi
3440
3441 # Let's see if enhanced reg_mr is supported
3442 if test "$pvrdma" = "yes" ; then
3443
3444 cat > $TMPC <<EOF &&
3445 #include <infiniband/verbs.h>
3446
3447 int
3448 main(void)
3449 {
3450     struct ibv_mr *mr;
3451     struct ibv_pd *pd = NULL;
3452     size_t length = 10;
3453     uint64_t iova = 0;
3454     int access = 0;
3455     void *addr = NULL;
3456
3457     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
3458
3459     ibv_dereg_mr(mr);
3460
3461     return 0;
3462 }
3463 EOF
3464     if ! compile_prog "" "-libverbs"; then
3465         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
3466     fi
3467 fi
3468
3469 ##########################################
3470 # xfsctl() probe, used for file-posix.c
3471 if test "$xfs" != "no" ; then
3472   cat > $TMPC << EOF
3473 #include <stddef.h>  /* NULL */
3474 #include <xfs/xfs.h>
3475 int main(void)
3476 {
3477     xfsctl(NULL, 0, 0, NULL);
3478     return 0;
3479 }
3480 EOF
3481   if compile_prog "" "" ; then
3482     xfs="yes"
3483   else
3484     if test "$xfs" = "yes" ; then
3485       feature_not_found "xfs" "Instal xfsprogs/xfslibs devel"
3486     fi
3487     xfs=no
3488   fi
3489 fi
3490
3491 ##########################################
3492 # vde libraries probe
3493 if test "$vde" != "no" ; then
3494   vde_libs="-lvdeplug"
3495   cat > $TMPC << EOF
3496 #include <libvdeplug.h>
3497 int main(void)
3498 {
3499     struct vde_open_args a = {0, 0, 0};
3500     char s[] = "";
3501     vde_open(s, s, &a);
3502     return 0;
3503 }
3504 EOF
3505   if compile_prog "" "$vde_libs" ; then
3506     vde=yes
3507   else
3508     if test "$vde" = "yes" ; then
3509       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3510     fi
3511     vde=no
3512   fi
3513 fi
3514
3515 ##########################################
3516 # netmap support probe
3517 # Apart from looking for netmap headers, we make sure that the host API version
3518 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3519 # a minor/major version number. Minor new features will be marked with values up
3520 # to 15, and if something happens that requires a change to the backend we will
3521 # move above 15, submit the backend fixes and modify this two bounds.
3522 if test "$netmap" != "no" ; then
3523   cat > $TMPC << EOF
3524 #include <inttypes.h>
3525 #include <net/if.h>
3526 #include <net/netmap.h>
3527 #include <net/netmap_user.h>
3528 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3529 #error
3530 #endif
3531 int main(void) { return 0; }
3532 EOF
3533   if compile_prog "" "" ; then
3534     netmap=yes
3535   else
3536     if test "$netmap" = "yes" ; then
3537       feature_not_found "netmap"
3538     fi
3539     netmap=no
3540   fi
3541 fi
3542
3543 ##########################################
3544 # libcap-ng library probe
3545 if test "$cap_ng" != "no" ; then
3546   cap_libs="-lcap-ng"
3547   cat > $TMPC << EOF
3548 #include <cap-ng.h>
3549 int main(void)
3550 {
3551     capng_capability_to_name(CAPNG_EFFECTIVE);
3552     return 0;
3553 }
3554 EOF
3555   if compile_prog "" "$cap_libs" ; then
3556     cap_ng=yes
3557   else
3558     if test "$cap_ng" = "yes" ; then
3559       feature_not_found "cap_ng" "Install libcap-ng devel"
3560     fi
3561     cap_ng=no
3562   fi
3563 fi
3564
3565 ##########################################
3566 # Sound support libraries probe
3567
3568 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3569 for drv in $audio_drv_list; do
3570     case $drv in
3571     alsa | try-alsa)
3572     if $pkg_config alsa --exists; then
3573         alsa_libs=$($pkg_config alsa --libs)
3574         alsa_cflags=$($pkg_config alsa --cflags)
3575         alsa=yes
3576         if test "$drv" = "try-alsa"; then
3577             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3578         fi
3579     else
3580         if test "$drv" = "try-alsa"; then
3581             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3582         else
3583             error_exit "$drv check failed" \
3584                 "Make sure to have the $drv libs and headers installed."
3585         fi
3586     fi
3587     ;;
3588
3589     pa | try-pa)
3590     if $pkg_config libpulse --exists; then
3591         libpulse=yes
3592         pulse_libs=$($pkg_config libpulse --libs)
3593         pulse_cflags=$($pkg_config libpulse --cflags)
3594         if test "$drv" = "try-pa"; then
3595             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3596         fi
3597     else
3598         if test "$drv" = "try-pa"; then
3599             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3600         else
3601             error_exit "$drv check failed" \
3602                 "Make sure to have the $drv libs and headers installed."
3603         fi
3604     fi
3605     ;;
3606
3607     sdl)
3608     if test "$sdl" = "no"; then
3609         error_exit "sdl not found or disabled, can not use sdl audio driver"
3610     fi
3611     ;;
3612
3613     try-sdl)
3614     if test "$sdl" = "no"; then
3615         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3616     else
3617         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3618     fi
3619     ;;
3620
3621     coreaudio)
3622       coreaudio_libs="-framework CoreAudio"
3623     ;;
3624
3625     dsound)
3626       dsound_libs="-lole32 -ldxguid"
3627       audio_win_int="yes"
3628     ;;
3629
3630     oss)
3631       oss_libs="$oss_lib"
3632     ;;
3633
3634     jack | try-jack)
3635     if $pkg_config jack --exists; then
3636         libjack=yes
3637         jack_libs=$($pkg_config jack --libs)
3638         if test "$drv" = "try-jack"; then
3639             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3640         fi
3641     else
3642         if test "$drv" = "try-jack"; then
3643             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3644         else
3645             error_exit "$drv check failed" \
3646                 "Make sure to have the $drv libs and headers installed."
3647         fi
3648     fi
3649     ;;
3650
3651     *)
3652     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3653         error_exit "Unknown driver '$drv' selected" \
3654             "Possible drivers are: $audio_possible_drivers"
3655     }
3656     ;;
3657     esac
3658 done
3659
3660 ##########################################
3661 # BrlAPI probe
3662
3663 if test "$brlapi" != "no" ; then
3664   brlapi_libs="-lbrlapi"
3665   cat > $TMPC << EOF
3666 #include <brlapi.h>
3667 #include <stddef.h>
3668 int main( void ) { return brlapi__openConnection (NULL, NULL, NULL); }
3669 EOF
3670   if compile_prog "" "$brlapi_libs" ; then
3671     brlapi=yes
3672   else
3673     if test "$brlapi" = "yes" ; then
3674       feature_not_found "brlapi" "Install brlapi devel"
3675     fi
3676     brlapi=no
3677   fi
3678 fi
3679
3680 ##########################################
3681 # iconv probe
3682 if test "$iconv" != "no" ; then
3683   cat > $TMPC << EOF
3684 #include <iconv.h>
3685 int main(void) {
3686   iconv_t conv = iconv_open("WCHAR_T", "UCS-2");
3687   return conv != (iconv_t) -1;
3688 }
3689 EOF
3690   iconv_prefix_list="/usr/local:/usr"
3691   iconv_lib_list=":-liconv"
3692   IFS=:
3693   for iconv_prefix in $iconv_prefix_list; do
3694     IFS=:
3695     iconv_cflags="-I$iconv_prefix/include"
3696     iconv_ldflags="-L$iconv_prefix/lib"
3697     for iconv_link in $iconv_lib_list; do
3698       unset IFS
3699       iconv_lib="$iconv_ldflags $iconv_link"
3700       echo "looking at iconv in '$iconv_cflags' '$iconv_lib'" >> config.log
3701       if compile_prog "$iconv_cflags" "$iconv_lib" ; then
3702         iconv_found=yes
3703         break
3704       fi
3705     done
3706     if test "$iconv_found" = yes ; then
3707       break
3708     fi
3709   done
3710   if test "$iconv_found" = "yes" ; then
3711     iconv=yes
3712   else
3713     if test "$iconv" = "yes" ; then
3714       feature_not_found "iconv" "Install iconv devel"
3715     fi
3716     iconv=no
3717   fi
3718 fi
3719
3720 ##########################################
3721 # curses probe
3722 if test "$iconv" = "no" ; then
3723   # curses will need iconv
3724   curses=no
3725 fi
3726 if test "$curses" != "no" ; then
3727   if test "$mingw32" = "yes" ; then
3728     curses_inc_list="$($pkg_config --cflags ncurses 2>/dev/null):"
3729     curses_lib_list="$($pkg_config --libs ncurses 2>/dev/null):-lpdcurses"
3730   else
3731     curses_inc_list="$($pkg_config --cflags ncursesw 2>/dev/null):-I/usr/include/ncursesw:"
3732     curses_lib_list="$($pkg_config --libs ncursesw 2>/dev/null):-lncursesw:-lcursesw"
3733   fi
3734   curses_found=no
3735   cat > $TMPC << EOF
3736 #include <locale.h>
3737 #include <curses.h>
3738 #include <wchar.h>
3739 #include <langinfo.h>
3740 int main(void) {
3741   const char *codeset;
3742   wchar_t wch = L'w';
3743   setlocale(LC_ALL, "");
3744   resize_term(0, 0);
3745   addwstr(L"wide chars\n");
3746   addnwstr(&wch, 1);
3747   add_wch(WACS_DEGREE);
3748   codeset = nl_langinfo(CODESET);
3749   return codeset != 0;
3750 }
3751 EOF
3752   IFS=:
3753   for curses_inc in $curses_inc_list; do
3754     # Make sure we get the wide character prototypes
3755     curses_inc="-DNCURSES_WIDECHAR $curses_inc"
3756     IFS=:
3757     for curses_lib in $curses_lib_list; do
3758       unset IFS
3759       if compile_prog "$curses_inc" "$curses_lib" ; then
3760         curses_found=yes
3761         break
3762       fi
3763     done
3764     if test "$curses_found" = yes ; then
3765       break
3766     fi
3767   done
3768   unset IFS
3769   if test "$curses_found" = "yes" ; then
3770     curses=yes
3771   else
3772     if test "$curses" = "yes" ; then
3773       feature_not_found "curses" "Install ncurses devel"
3774     fi
3775     curses=no
3776   fi
3777 fi
3778
3779 ##########################################
3780 # curl probe
3781 if test "$curl" != "no" ; then
3782   if $pkg_config libcurl --exists; then
3783     curlconfig="$pkg_config libcurl"
3784   else
3785     curlconfig=curl-config
3786   fi
3787   cat > $TMPC << EOF
3788 #include <curl/curl.h>
3789 int main(void) { curl_easy_init(); curl_multi_setopt(0, 0, 0); return 0; }
3790 EOF
3791   curl_cflags=$($curlconfig --cflags 2>/dev/null)
3792   curl_libs=$($curlconfig --libs 2>/dev/null)
3793   if compile_prog "$curl_cflags" "$curl_libs" ; then
3794     curl=yes
3795   else
3796     if test "$curl" = "yes" ; then
3797       feature_not_found "curl" "Install libcurl devel"
3798     fi
3799     curl=no
3800   fi
3801 fi # test "$curl"
3802
3803 ##########################################
3804 # glib support probe
3805
3806 glib_req_ver=2.48
3807 glib_modules=gthread-2.0
3808 if test "$modules" = yes; then
3809     glib_modules="$glib_modules gmodule-export-2.0"
3810 fi
3811 if test "$plugins" = yes; then
3812     glib_modules="$glib_modules gmodule-2.0"
3813 fi
3814
3815 # This workaround is required due to a bug in pkg-config file for glib as it
3816 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3817
3818 if test "$static" = yes && test "$mingw32" = yes; then
3819     QEMU_CFLAGS="-DGLIB_STATIC_COMPILATION $QEMU_CFLAGS"
3820 fi
3821
3822 for i in $glib_modules; do
3823     if $pkg_config --atleast-version=$glib_req_ver $i; then
3824         glib_cflags=$($pkg_config --cflags $i)
3825         glib_libs=$($pkg_config --libs $i)
3826         QEMU_CFLAGS="$glib_cflags $QEMU_CFLAGS"
3827         LIBS="$glib_libs $LIBS"
3828     else
3829         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3830     fi
3831 done
3832
3833 if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3834     gio=yes
3835     gio_cflags=$($pkg_config --cflags gio-2.0)
3836     gio_libs=$($pkg_config --libs gio-2.0)
3837     gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3838     if [ ! -x "$gdbus_codegen" ]; then
3839         gdbus_codegen=
3840     fi
3841 else
3842     gio=no
3843 fi
3844
3845 if $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3846     gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3847     gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3848 fi
3849
3850 # Sanity check that the current size_t matches the
3851 # size that glib thinks it should be. This catches
3852 # problems on multi-arch where people try to build
3853 # 32-bit QEMU while pointing at 64-bit glib headers
3854 cat > $TMPC <<EOF
3855 #include <glib.h>
3856 #include <unistd.h>
3857
3858 #define QEMU_BUILD_BUG_ON(x) \
3859   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3860
3861 int main(void) {
3862    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3863    return 0;
3864 }
3865 EOF
3866
3867 if ! compile_prog "$CFLAGS" "$LIBS" ; then
3868     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3869                "You probably need to set PKG_CONFIG_LIBDIR"\
3870                "to point to the right pkg-config files for your"\
3871                "build target"
3872 fi
3873
3874 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3875 cat > $TMPC << EOF
3876 #include <glib.h>
3877 int main(void) { return 0; }
3878 EOF
3879 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3880     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3881         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3882         QEMU_CFLAGS="-Wno-unknown-attributes $CFLAGS"
3883     fi
3884 fi
3885
3886 # Silence clang warnings triggered by glib < 2.57.2
3887 cat > $TMPC << EOF
3888 #include <glib.h>
3889 typedef struct Foo {
3890     int i;
3891 } Foo;
3892 static void foo_free(Foo *f)
3893 {
3894     g_free(f);
3895 }
3896 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3897 int main(void) { return 0; }
3898 EOF
3899 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3900     if cc_has_warning_flag "-Wno-unused-function"; then
3901         glib_cflags="$glib_cflags -Wno-unused-function"
3902         CFLAGS="$CFLAGS -Wno-unused-function"
3903     fi
3904 fi
3905
3906 ##########################################
3907 # SHA command probe for modules
3908 if test "$modules" = yes; then
3909     shacmd_probe="sha1sum sha1 shasum"
3910     for c in $shacmd_probe; do
3911         if has $c; then
3912             shacmd="$c"
3913             break
3914         fi
3915     done
3916     if test "$shacmd" = ""; then
3917         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3918     fi
3919 fi
3920
3921 ##########################################
3922 # libmpathpersist probe
3923
3924 if test "$mpath" != "no" ; then
3925   # probe for the new API
3926   cat > $TMPC <<EOF
3927 #include <libudev.h>
3928 #include <mpath_persist.h>
3929 unsigned mpath_mx_alloc_len = 1024;
3930 int logsink;
3931 static struct config *multipath_conf;
3932 extern struct udev *udev;
3933 extern struct config *get_multipath_config(void);
3934 extern void put_multipath_config(struct config *conf);
3935 struct udev *udev;
3936 struct config *get_multipath_config(void) { return multipath_conf; }
3937 void put_multipath_config(struct config *conf) { }
3938
3939 int main(void) {
3940     udev = udev_new();
3941     multipath_conf = mpath_lib_init();
3942     return 0;
3943 }
3944 EOF
3945   if compile_prog "" "-ludev -lmultipath -lmpathpersist" ; then
3946     mpathpersist=yes
3947     mpathpersist_new_api=yes
3948   else
3949     # probe for the old API
3950     cat > $TMPC <<EOF
3951 #include <libudev.h>
3952 #include <mpath_persist.h>
3953 unsigned mpath_mx_alloc_len = 1024;
3954 int logsink;
3955 int main(void) {
3956     struct udev *udev = udev_new();
3957     mpath_lib_init(udev);
3958     return 0;
3959 }
3960 EOF
3961     if compile_prog "" "-ludev -lmultipath -lmpathpersist" ; then
3962       mpathpersist=yes
3963       mpathpersist_new_api=no
3964     else
3965       mpathpersist=no
3966     fi
3967   fi
3968 else
3969   mpathpersist=no
3970 fi
3971
3972 ##########################################
3973 # pthread probe
3974 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3975
3976 pthread=no
3977 cat > $TMPC << EOF
3978 #include <pthread.h>
3979 static void *f(void *p) { return NULL; }
3980 int main(void) {
3981   pthread_t thread;
3982   pthread_create(&thread, 0, f, 0);
3983   return 0;
3984 }
3985 EOF
3986 if compile_prog "" "" ; then
3987   pthread=yes
3988 else
3989   for pthread_lib in $PTHREADLIBS_LIST; do
3990     if compile_prog "" "$pthread_lib" ; then
3991       pthread=yes
3992       found=no
3993       for lib_entry in $LIBS; do
3994         if test "$lib_entry" = "$pthread_lib"; then
3995           found=yes
3996           break
3997         fi
3998       done
3999       if test "$found" = "no"; then
4000         LIBS="$pthread_lib $LIBS"
4001       fi
4002       PTHREAD_LIB="$pthread_lib"
4003       break
4004     fi
4005   done
4006 fi
4007
4008 if test "$mingw32" != yes && test "$pthread" = no; then
4009   error_exit "pthread check failed" \
4010       "Make sure to have the pthread libs and headers installed."
4011 fi
4012
4013 # check for pthread_setname_np with thread id
4014 pthread_setname_np_w_tid=no
4015 cat > $TMPC << EOF
4016 #include <pthread.h>
4017
4018 static void *f(void *p) { return NULL; }
4019 int main(void)
4020 {
4021     pthread_t thread;
4022     pthread_create(&thread, 0, f, 0);
4023     pthread_setname_np(thread, "QEMU");
4024     return 0;
4025 }
4026 EOF
4027 if compile_prog "" "$pthread_lib" ; then
4028   pthread_setname_np_w_tid=yes
4029 fi
4030
4031 # check for pthread_setname_np without thread id
4032 pthread_setname_np_wo_tid=no
4033 cat > $TMPC << EOF
4034 #include <pthread.h>
4035
4036 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
4037 int main(void)
4038 {
4039     pthread_t thread;
4040     pthread_create(&thread, 0, f, 0);
4041     return 0;
4042 }
4043 EOF
4044 if compile_prog "" "$pthread_lib" ; then
4045   pthread_setname_np_wo_tid=yes
4046 fi
4047
4048 ##########################################
4049 # rbd probe
4050 if test "$rbd" != "no" ; then
4051   cat > $TMPC <<EOF
4052 #include <stdio.h>
4053 #include <rbd/librbd.h>
4054 int main(void) {
4055     rados_t cluster;
4056     rados_create(&cluster, NULL);
4057     return 0;
4058 }
4059 EOF
4060   rbd_libs="-lrbd -lrados"
4061   if compile_prog "" "$rbd_libs" ; then
4062     rbd=yes
4063   else
4064     if test "$rbd" = "yes" ; then
4065       feature_not_found "rados block device" "Install librbd/ceph devel"
4066     fi
4067     rbd=no
4068   fi
4069 fi
4070
4071 ##########################################
4072 # libssh probe
4073 if test "$libssh" != "no" ; then
4074   if $pkg_config --exists libssh; then
4075     libssh_cflags=$($pkg_config libssh --cflags)
4076     libssh_libs=$($pkg_config libssh --libs)
4077     libssh=yes
4078   else
4079     if test "$libssh" = "yes" ; then
4080       error_exit "libssh required for --enable-libssh"
4081     fi
4082     libssh=no
4083   fi
4084 fi
4085
4086 ##########################################
4087 # Check for libssh 0.8
4088 # This is done like this instead of using the LIBSSH_VERSION_* and
4089 # SSH_VERSION_* macros because some distributions in the past shipped
4090 # snapshots of the future 0.8 from Git, and those snapshots did not
4091 # have updated version numbers (still referring to 0.7.0).
4092
4093 if test "$libssh" = "yes"; then
4094   cat > $TMPC <<EOF
4095 #include <libssh/libssh.h>
4096 int main(void) { return ssh_get_server_publickey(NULL, NULL); }
4097 EOF
4098   if compile_prog "$libssh_cflags" "$libssh_libs"; then
4099     libssh_cflags="-DHAVE_LIBSSH_0_8 $libssh_cflags"
4100   fi
4101 fi
4102
4103 ##########################################
4104 # linux-aio probe
4105
4106 if test "$linux_aio" != "no" ; then
4107   cat > $TMPC <<EOF
4108 #include <libaio.h>
4109 #include <sys/eventfd.h>
4110 #include <stddef.h>
4111 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
4112 EOF
4113   if compile_prog "" "-laio" ; then
4114     linux_aio=yes
4115   else
4116     if test "$linux_aio" = "yes" ; then
4117       feature_not_found "linux AIO" "Install libaio devel"
4118     fi
4119     linux_aio=no
4120   fi
4121 fi
4122 ##########################################
4123 # linux-io-uring probe
4124
4125 if test "$linux_io_uring" != "no" ; then
4126   if $pkg_config liburing; then
4127     linux_io_uring_cflags=$($pkg_config --cflags liburing)
4128     linux_io_uring_libs=$($pkg_config --libs liburing)
4129     linux_io_uring=yes
4130
4131     # io_uring is used in libqemuutil.a where per-file -libs variables are not
4132     # seen by programs linking the archive.  It's not ideal, but just add the
4133     # library dependency globally.
4134     LIBS="$linux_io_uring_libs $LIBS"
4135   else
4136     if test "$linux_io_uring" = "yes" ; then
4137       feature_not_found "linux io_uring" "Install liburing devel"
4138     fi
4139     linux_io_uring=no
4140   fi
4141 fi
4142
4143 ##########################################
4144 # TPM emulation is only on POSIX
4145
4146 if test "$tpm" = ""; then
4147   if test "$mingw32" = "yes"; then
4148     tpm=no
4149   else
4150     tpm=yes
4151   fi
4152 elif test "$tpm" = "yes"; then
4153   if test "$mingw32" = "yes" ; then
4154     error_exit "TPM emulation only available on POSIX systems"
4155   fi
4156 fi
4157
4158 ##########################################
4159 # attr probe
4160
4161 libattr_libs=
4162 if test "$attr" != "no" ; then
4163   cat > $TMPC <<EOF
4164 #include <stdio.h>
4165 #include <sys/types.h>
4166 #ifdef CONFIG_LIBATTR
4167 #include <attr/xattr.h>
4168 #else
4169 #include <sys/xattr.h>
4170 #endif
4171 int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }
4172 EOF
4173   if compile_prog "" "" ; then
4174     attr=yes
4175   # Older distros have <attr/xattr.h>, and need -lattr:
4176   elif compile_prog "-DCONFIG_LIBATTR" "-lattr" ; then
4177     attr=yes
4178     libattr_libs="-lattr"
4179     LIBS="$libattr_libs $LIBS"
4180     libattr=yes
4181   else
4182     if test "$attr" = "yes" ; then
4183       feature_not_found "ATTR" "Install libc6 or libattr devel"
4184     fi
4185     attr=no
4186   fi
4187 fi
4188
4189 ##########################################
4190 # iovec probe
4191 cat > $TMPC <<EOF
4192 #include <sys/types.h>
4193 #include <sys/uio.h>
4194 #include <unistd.h>
4195 int main(void) { return sizeof(struct iovec); }
4196 EOF
4197 iovec=no
4198 if compile_prog "" "" ; then
4199   iovec=yes
4200 fi
4201
4202 ##########################################
4203 # preadv probe
4204 cat > $TMPC <<EOF
4205 #include <sys/types.h>
4206 #include <sys/uio.h>
4207 #include <unistd.h>
4208 int main(void) { return preadv(0, 0, 0, 0); }
4209 EOF
4210 preadv=no
4211 if compile_prog "" "" ; then
4212   preadv=yes
4213 fi
4214
4215 ##########################################
4216 # fdt probe
4217 # fdt support is mandatory for at least some target architectures,
4218 # so insist on it if we're building those system emulators.
4219 fdt_required=no
4220 for target in $target_list; do
4221   case $target in
4222     aarch64*-softmmu|arm*-softmmu|ppc*-softmmu|microblaze*-softmmu|mips64el-softmmu|riscv*-softmmu|rx-softmmu)
4223       fdt_required=yes
4224     ;;
4225   esac
4226 done
4227
4228 if test "$fdt_required" = "yes"; then
4229   if test "$fdt" = "no"; then
4230     error_exit "fdt disabled but some requested targets require it." \
4231       "You can turn off fdt only if you also disable all the system emulation" \
4232       "targets which need it (by specifying a cut down --target-list)."
4233   fi
4234   fdt=yes
4235 elif test "$fdt" != "yes" ; then
4236   fdt=no
4237 fi
4238
4239 # fdt is only required when building softmmu targets
4240 if test -z "$fdt" -a "$softmmu" != "yes" ; then
4241     fdt="no"
4242 fi
4243
4244 if test "$fdt" != "no" ; then
4245   fdt_libs="-lfdt"
4246   # explicitly check for libfdt_env.h as it is missing in some stable installs
4247   # and test for required functions to make sure we are on a version >= 1.4.2
4248   cat > $TMPC << EOF
4249 #include <libfdt.h>
4250 #include <libfdt_env.h>
4251 int main(void) { fdt_check_full(NULL, 0); return 0; }
4252 EOF
4253   if compile_prog "" "$fdt_libs" ; then
4254     # system DTC is good - use it
4255     fdt=system
4256   else
4257       # have GIT checkout, so activate dtc submodule
4258       if test -e "${source_path}/.git" ; then
4259           git_submodules="${git_submodules} dtc"
4260       fi
4261       if test -d "${source_path}/dtc/libfdt" || test -e "${source_path}/.git" ; then
4262           fdt=git
4263           mkdir -p dtc
4264           if [ "$pwd_is_source_path" != "y" ] ; then
4265               symlink "$source_path/dtc/Makefile" "dtc/Makefile"
4266           fi
4267           fdt_cflags="-I${source_path}/dtc/libfdt"
4268           fdt_ldflags="-L$PWD/dtc/libfdt"
4269           fdt_libs="$fdt_libs"
4270       elif test "$fdt" = "yes" ; then
4271           # Not a git build & no libfdt found, prompt for system install
4272           error_exit "DTC (libfdt) version >= 1.4.2 not present." \
4273                      "Please install the DTC (libfdt) devel package"
4274       else
4275           # don't have and don't want
4276           fdt_libs=
4277           fdt=no
4278       fi
4279   fi
4280 fi
4281
4282 ##########################################
4283 # opengl probe (for sdl2, gtk, milkymist-tmu2)
4284
4285 gbm="no"
4286 if $pkg_config gbm; then
4287     gbm_cflags="$($pkg_config --cflags gbm)"
4288     gbm_libs="$($pkg_config --libs gbm)"
4289     gbm="yes"
4290 fi
4291
4292 if test "$opengl" != "no" ; then
4293   opengl_pkgs="epoxy gbm"
4294   if $pkg_config $opengl_pkgs; then
4295     opengl_cflags="$($pkg_config --cflags $opengl_pkgs)"
4296     opengl_libs="$($pkg_config --libs $opengl_pkgs)"
4297     opengl=yes
4298     if test "$gtk" = "yes" && $pkg_config --exists "$gtkpackage >= 3.16"; then
4299         gtk_gl="yes"
4300     fi
4301     QEMU_CFLAGS="$QEMU_CFLAGS $opengl_cflags"
4302   else
4303     if test "$opengl" = "yes" ; then
4304       feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
4305     fi
4306     opengl_cflags=""
4307     opengl_libs=""
4308     opengl=no
4309   fi
4310 fi
4311
4312 if test "$opengl" = "yes"; then
4313   cat > $TMPC << EOF
4314 #include <epoxy/egl.h>
4315 #ifndef EGL_MESA_image_dma_buf_export
4316 # error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
4317 #endif
4318 int main(void) { return 0; }
4319 EOF
4320   if compile_prog "" "" ; then
4321     opengl_dmabuf=yes
4322   fi
4323 fi
4324
4325 if test "$opengl" = "yes" && test "$have_x11" = "yes"; then
4326   for target in $target_list; do
4327     case $target in
4328       lm32-softmmu) # milkymist-tmu2 requires X11 and OpenGL
4329         need_x11=yes
4330       ;;
4331     esac
4332   done
4333 fi
4334
4335 ##########################################
4336 # libxml2 probe
4337 if test "$libxml2" != "no" ; then
4338     if $pkg_config --exists libxml-2.0; then
4339         libxml2="yes"
4340         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
4341         libxml2_libs=$($pkg_config --libs libxml-2.0)
4342     else
4343         if test "$libxml2" = "yes"; then
4344             feature_not_found "libxml2" "Install libxml2 devel"
4345         fi
4346         libxml2="no"
4347     fi
4348 fi
4349
4350 ##########################################
4351 # glusterfs probe
4352 if test "$glusterfs" != "no" ; then
4353   if $pkg_config --atleast-version=3 glusterfs-api; then
4354     glusterfs="yes"
4355     glusterfs_cflags=$($pkg_config --cflags glusterfs-api)
4356     glusterfs_libs=$($pkg_config --libs glusterfs-api)
4357     if $pkg_config --atleast-version=4 glusterfs-api; then
4358       glusterfs_xlator_opt="yes"
4359     fi
4360     if $pkg_config --atleast-version=5 glusterfs-api; then
4361       glusterfs_discard="yes"
4362     fi
4363     if $pkg_config --atleast-version=6 glusterfs-api; then
4364       glusterfs_fallocate="yes"
4365       glusterfs_zerofill="yes"
4366     fi
4367     cat > $TMPC << EOF
4368 #include <glusterfs/api/glfs.h>
4369
4370 int
4371 main(void)
4372 {
4373         /* new glfs_ftruncate() passes two additional args */
4374         return glfs_ftruncate(NULL, 0, NULL, NULL);
4375 }
4376 EOF
4377     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
4378       glusterfs_ftruncate_has_stat="yes"
4379     fi
4380     cat > $TMPC << EOF
4381 #include <glusterfs/api/glfs.h>
4382
4383 /* new glfs_io_cbk() passes two additional glfs_stat structs */
4384 static void
4385 glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
4386 {}
4387
4388 int
4389 main(void)
4390 {
4391         glfs_io_cbk iocb = &glusterfs_iocb;
4392         iocb(NULL, 0 , NULL, NULL, NULL);
4393         return 0;
4394 }
4395 EOF
4396     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
4397       glusterfs_iocb_has_stat="yes"
4398     fi
4399   else
4400     if test "$glusterfs" = "yes" ; then
4401       feature_not_found "GlusterFS backend support" \
4402           "Install glusterfs-api devel >= 3"
4403     fi
4404     glusterfs="no"
4405   fi
4406 fi
4407
4408 # Check for inotify functions when we are building linux-user
4409 # emulator.  This is done because older glibc versions don't
4410 # have syscall stubs for these implemented.  In that case we
4411 # don't provide them even if kernel supports them.
4412 #
4413 inotify=no
4414 cat > $TMPC << EOF
4415 #include <sys/inotify.h>
4416
4417 int
4418 main(void)
4419 {
4420         /* try to start inotify */
4421         return inotify_init();
4422 }
4423 EOF
4424 if compile_prog "" "" ; then
4425   inotify=yes
4426 fi
4427
4428 inotify1=no
4429 cat > $TMPC << EOF
4430 #include <sys/inotify.h>
4431
4432 int
4433 main(void)
4434 {
4435     /* try to start inotify */
4436     return inotify_init1(0);
4437 }
4438 EOF
4439 if compile_prog "" "" ; then
4440   inotify1=yes
4441 fi
4442
4443 # check if pipe2 is there
4444 pipe2=no
4445 cat > $TMPC << EOF
4446 #include <unistd.h>
4447 #include <fcntl.h>
4448
4449 int main(void)
4450 {
4451     int pipefd[2];
4452     return pipe2(pipefd, O_CLOEXEC);
4453 }
4454 EOF
4455 if compile_prog "" "" ; then
4456   pipe2=yes
4457 fi
4458
4459 # check if accept4 is there
4460 accept4=no
4461 cat > $TMPC << EOF
4462 #include <sys/socket.h>
4463 #include <stddef.h>
4464
4465 int main(void)
4466 {
4467     accept4(0, NULL, NULL, SOCK_CLOEXEC);
4468     return 0;
4469 }
4470 EOF
4471 if compile_prog "" "" ; then
4472   accept4=yes
4473 fi
4474
4475 # check if tee/splice is there. vmsplice was added same time.
4476 splice=no
4477 cat > $TMPC << EOF
4478 #include <unistd.h>
4479 #include <fcntl.h>
4480 #include <limits.h>
4481
4482 int main(void)
4483 {
4484     int len, fd = 0;
4485     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
4486     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
4487     return 0;
4488 }
4489 EOF
4490 if compile_prog "" "" ; then
4491   splice=yes
4492 fi
4493
4494 ##########################################
4495 # libnuma probe
4496
4497 if test "$numa" != "no" ; then
4498   cat > $TMPC << EOF
4499 #include <numa.h>
4500 int main(void) { return numa_available(); }
4501 EOF
4502
4503   if compile_prog "" "-lnuma" ; then
4504     numa=yes
4505     numa_libs="-lnuma"
4506   else
4507     if test "$numa" = "yes" ; then
4508       feature_not_found "numa" "install numactl devel"
4509     fi
4510     numa=no
4511   fi
4512 fi
4513
4514 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
4515     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
4516     exit 1
4517 fi
4518
4519 # Even if malloc_trim() is available, these non-libc memory allocators
4520 # do not support it.
4521 if test "$tcmalloc" = "yes" || test "$jemalloc" = "yes" ; then
4522     if test "$malloc_trim" = "yes" ; then
4523         echo "Disabling malloc_trim with non-libc memory allocator"
4524     fi
4525     malloc_trim="no"
4526 fi
4527
4528 #######################################
4529 # malloc_trim
4530
4531 if test "$malloc_trim" != "no" ; then
4532     cat > $TMPC << EOF
4533 #include <malloc.h>
4534 int main(void) { malloc_trim(0); return 0; }
4535 EOF
4536     if compile_prog "" "" ; then
4537         malloc_trim="yes"
4538     else
4539         malloc_trim="no"
4540     fi
4541 fi
4542
4543 ##########################################
4544 # tcmalloc probe
4545
4546 if test "$tcmalloc" = "yes" ; then
4547   cat > $TMPC << EOF
4548 #include <stdlib.h>
4549 int main(void) {
4550     void *tmp = malloc(1);
4551     if (tmp != NULL) {
4552         return 0;
4553     }
4554     return 1;
4555 }
4556 EOF
4557
4558   if compile_prog "" "-ltcmalloc" ; then
4559     LIBS="-ltcmalloc $LIBS"
4560   else
4561     feature_not_found "tcmalloc" "install gperftools devel"
4562   fi
4563 fi
4564
4565 ##########################################
4566 # jemalloc probe
4567
4568 if test "$jemalloc" = "yes" ; then
4569   cat > $TMPC << EOF
4570 #include <stdlib.h>
4571 int main(void) {
4572     void *tmp = malloc(1);
4573     if (tmp != NULL) {
4574         return 0;
4575     }
4576     return 1;
4577 }
4578 EOF
4579
4580   if compile_prog "" "-ljemalloc" ; then
4581     LIBS="-ljemalloc $LIBS"
4582   else
4583     feature_not_found "jemalloc" "install jemalloc devel"
4584   fi
4585 fi
4586
4587 ##########################################
4588 # signalfd probe
4589 signalfd="no"
4590 cat > $TMPC << EOF
4591 #include <unistd.h>
4592 #include <sys/syscall.h>
4593 #include <signal.h>
4594 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
4595 EOF
4596
4597 if compile_prog "" "" ; then
4598   signalfd=yes
4599 fi
4600
4601 # check if optreset global is declared by <getopt.h>
4602 optreset="no"
4603 cat > $TMPC << EOF
4604 #include <getopt.h>
4605 int main(void) { return optreset; }
4606 EOF
4607
4608 if compile_prog "" "" ; then
4609   optreset=yes
4610 fi
4611
4612 # check if eventfd is supported
4613 eventfd=no
4614 cat > $TMPC << EOF
4615 #include <sys/eventfd.h>
4616
4617 int main(void)
4618 {
4619     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
4620 }
4621 EOF
4622 if compile_prog "" "" ; then
4623   eventfd=yes
4624 fi
4625
4626 # check if memfd is supported
4627 memfd=no
4628 cat > $TMPC << EOF
4629 #include <sys/mman.h>
4630
4631 int main(void)
4632 {
4633     return memfd_create("foo", MFD_ALLOW_SEALING);
4634 }
4635 EOF
4636 if compile_prog "" "" ; then
4637   memfd=yes
4638 fi
4639
4640 # check for usbfs
4641 have_usbfs=no
4642 if test "$linux_user" = "yes"; then
4643   cat > $TMPC << EOF
4644 #include <linux/usbdevice_fs.h>
4645
4646 #ifndef USBDEVFS_GET_CAPABILITIES
4647 #error "USBDEVFS_GET_CAPABILITIES undefined"
4648 #endif
4649
4650 #ifndef USBDEVFS_DISCONNECT_CLAIM
4651 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
4652 #endif
4653
4654 int main(void)
4655 {
4656     return 0;
4657 }
4658 EOF
4659   if compile_prog "" ""; then
4660     have_usbfs=yes
4661   fi
4662 fi
4663
4664 # check for fallocate
4665 fallocate=no
4666 cat > $TMPC << EOF
4667 #include <fcntl.h>
4668
4669 int main(void)
4670 {
4671     fallocate(0, 0, 0, 0);
4672     return 0;
4673 }
4674 EOF
4675 if compile_prog "" "" ; then
4676   fallocate=yes
4677 fi
4678
4679 # check for fallocate hole punching
4680 fallocate_punch_hole=no
4681 cat > $TMPC << EOF
4682 #include <fcntl.h>
4683 #include <linux/falloc.h>
4684
4685 int main(void)
4686 {
4687     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
4688     return 0;
4689 }
4690 EOF
4691 if compile_prog "" "" ; then
4692   fallocate_punch_hole=yes
4693 fi
4694
4695 # check that fallocate supports range zeroing inside the file
4696 fallocate_zero_range=no
4697 cat > $TMPC << EOF
4698 #include <fcntl.h>
4699 #include <linux/falloc.h>
4700
4701 int main(void)
4702 {
4703     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
4704     return 0;
4705 }
4706 EOF
4707 if compile_prog "" "" ; then
4708   fallocate_zero_range=yes
4709 fi
4710
4711 # check for posix_fallocate
4712 posix_fallocate=no
4713 cat > $TMPC << EOF
4714 #include <fcntl.h>
4715
4716 int main(void)
4717 {
4718     posix_fallocate(0, 0, 0);
4719     return 0;
4720 }
4721 EOF
4722 if compile_prog "" "" ; then
4723     posix_fallocate=yes
4724 fi
4725
4726 # check for sync_file_range
4727 sync_file_range=no
4728 cat > $TMPC << EOF
4729 #include <fcntl.h>
4730
4731 int main(void)
4732 {
4733     sync_file_range(0, 0, 0, 0);
4734     return 0;
4735 }
4736 EOF
4737 if compile_prog "" "" ; then
4738   sync_file_range=yes
4739 fi
4740
4741 # check for linux/fiemap.h and FS_IOC_FIEMAP
4742 fiemap=no
4743 cat > $TMPC << EOF
4744 #include <sys/ioctl.h>
4745 #include <linux/fs.h>
4746 #include <linux/fiemap.h>
4747
4748 int main(void)
4749 {
4750     ioctl(0, FS_IOC_FIEMAP, 0);
4751     return 0;
4752 }
4753 EOF
4754 if compile_prog "" "" ; then
4755   fiemap=yes
4756 fi
4757
4758 # check for dup3
4759 dup3=no
4760 cat > $TMPC << EOF
4761 #include <unistd.h>
4762
4763 int main(void)
4764 {
4765     dup3(0, 0, 0);
4766     return 0;
4767 }
4768 EOF
4769 if compile_prog "" "" ; then
4770   dup3=yes
4771 fi
4772
4773 # check for ppoll support
4774 ppoll=no
4775 cat > $TMPC << EOF
4776 #include <poll.h>
4777
4778 int main(void)
4779 {
4780     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
4781     ppoll(&pfd, 1, 0, 0);
4782     return 0;
4783 }
4784 EOF
4785 if compile_prog "" "" ; then
4786   ppoll=yes
4787 fi
4788
4789 # check for prctl(PR_SET_TIMERSLACK , ... ) support
4790 prctl_pr_set_timerslack=no
4791 cat > $TMPC << EOF
4792 #include <sys/prctl.h>
4793
4794 int main(void)
4795 {
4796     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
4797     return 0;
4798 }
4799 EOF
4800 if compile_prog "" "" ; then
4801   prctl_pr_set_timerslack=yes
4802 fi
4803
4804 # check for epoll support
4805 epoll=no
4806 cat > $TMPC << EOF
4807 #include <sys/epoll.h>
4808
4809 int main(void)
4810 {
4811     epoll_create(0);
4812     return 0;
4813 }
4814 EOF
4815 if compile_prog "" "" ; then
4816   epoll=yes
4817 fi
4818
4819 # epoll_create1 is a later addition
4820 # so we must check separately for its presence
4821 epoll_create1=no
4822 cat > $TMPC << EOF
4823 #include <sys/epoll.h>
4824
4825 int main(void)
4826 {
4827     /* Note that we use epoll_create1 as a value, not as
4828      * a function being called. This is necessary so that on
4829      * old SPARC glibc versions where the function was present in
4830      * the library but not declared in the header file we will
4831      * fail the configure check. (Otherwise we will get a compiler
4832      * warning but not an error, and will proceed to fail the
4833      * qemu compile where we compile with -Werror.)
4834      */
4835     return (int)(uintptr_t)&epoll_create1;
4836 }
4837 EOF
4838 if compile_prog "" "" ; then
4839   epoll_create1=yes
4840 fi
4841
4842 # check for sendfile support
4843 sendfile=no
4844 cat > $TMPC << EOF
4845 #include <sys/sendfile.h>
4846
4847 int main(void)
4848 {
4849     return sendfile(0, 0, 0, 0);
4850 }
4851 EOF
4852 if compile_prog "" "" ; then
4853   sendfile=yes
4854 fi
4855
4856 # check for timerfd support (glibc 2.8 and newer)
4857 timerfd=no
4858 cat > $TMPC << EOF
4859 #include <sys/timerfd.h>
4860
4861 int main(void)
4862 {
4863     return(timerfd_create(CLOCK_REALTIME, 0));
4864 }
4865 EOF
4866 if compile_prog "" "" ; then
4867   timerfd=yes
4868 fi
4869
4870 # check for setns and unshare support
4871 setns=no
4872 cat > $TMPC << EOF
4873 #include <sched.h>
4874
4875 int main(void)
4876 {
4877     int ret;
4878     ret = setns(0, 0);
4879     ret = unshare(0);
4880     return ret;
4881 }
4882 EOF
4883 if compile_prog "" "" ; then
4884   setns=yes
4885 fi
4886
4887 # clock_adjtime probe
4888 clock_adjtime=no
4889 cat > $TMPC <<EOF
4890 #include <time.h>
4891
4892 int main(void)
4893 {
4894     return clock_adjtime(0, 0);
4895 }
4896 EOF
4897 clock_adjtime=no
4898 if compile_prog "" "" ; then
4899   clock_adjtime=yes
4900 fi
4901
4902 # syncfs probe
4903 syncfs=no
4904 cat > $TMPC <<EOF
4905 #include <unistd.h>
4906
4907 int main(void)
4908 {
4909     return syncfs(0);
4910 }
4911 EOF
4912 syncfs=no
4913 if compile_prog "" "" ; then
4914   syncfs=yes
4915 fi
4916
4917 # check for kcov support (kernel must be 4.4+, compiled with certain options)
4918 kcov=no
4919 if check_include sys/kcov.h ; then
4920     kcov=yes
4921 fi
4922
4923 # check for btrfs filesystem support (kernel must be 3.9+)
4924 btrfs=no
4925 if check_include linux/btrfs.h ; then
4926     btrfs=yes
4927 fi
4928
4929 # If we're making warnings fatal, apply this to Sphinx runs as well
4930 sphinx_werror=""
4931 if test "$werror" = "yes"; then
4932     sphinx_werror="-W"
4933 fi
4934
4935 # Check we have a new enough version of sphinx-build
4936 has_sphinx_build() {
4937     # This is a bit awkward but works: create a trivial document and
4938     # try to run it with our configuration file (which enforces a
4939     # version requirement). This will fail if either
4940     # sphinx-build doesn't exist at all or if it is too old.
4941     mkdir -p "$TMPDIR1/sphinx"
4942     touch "$TMPDIR1/sphinx/index.rst"
4943     "$sphinx_build" $sphinx_werror -c "$source_path/docs" \
4944                     -b html "$TMPDIR1/sphinx" \
4945                     "$TMPDIR1/sphinx/out"  >> config.log 2>&1
4946 }
4947
4948 # Check if tools are available to build documentation.
4949 if test "$docs" != "no" ; then
4950   if has_sphinx_build; then
4951     sphinx_ok=yes
4952   else
4953     sphinx_ok=no
4954   fi
4955   if has makeinfo && has pod2man && test "$sphinx_ok" = "yes"; then
4956     docs=yes
4957   else
4958     if test "$docs" = "yes" ; then
4959       if has $sphinx_build && test "$sphinx_ok" != "yes"; then
4960         echo "Warning: $sphinx_build exists but it is either too old or uses too old a Python version" >&2
4961       fi
4962       feature_not_found "docs" "Install texinfo, Perl/perl-podlators and a Python 3 version of python-sphinx"
4963     fi
4964     docs=no
4965   fi
4966 fi
4967
4968 # Search for bswap_32 function
4969 byteswap_h=no
4970 cat > $TMPC << EOF
4971 #include <byteswap.h>
4972 int main(void) { return bswap_32(0); }
4973 EOF
4974 if compile_prog "" "" ; then
4975   byteswap_h=yes
4976 fi
4977
4978 # Search for bswap32 function
4979 bswap_h=no
4980 cat > $TMPC << EOF
4981 #include <sys/endian.h>
4982 #include <sys/types.h>
4983 #include <machine/bswap.h>
4984 int main(void) { return bswap32(0); }
4985 EOF
4986 if compile_prog "" "" ; then
4987   bswap_h=yes
4988 fi
4989
4990 ##########################################
4991 # Do we have libiscsi >= 1.9.0
4992 if test "$libiscsi" != "no" ; then
4993   if $pkg_config --atleast-version=1.9.0 libiscsi; then
4994     libiscsi="yes"
4995     libiscsi_cflags=$($pkg_config --cflags libiscsi)
4996     libiscsi_libs=$($pkg_config --libs libiscsi)
4997   else
4998     if test "$libiscsi" = "yes" ; then
4999       feature_not_found "libiscsi" "Install libiscsi >= 1.9.0"
5000     fi
5001     libiscsi="no"
5002   fi
5003 fi
5004
5005 ##########################################
5006 # Do we need libm
5007 cat > $TMPC << EOF
5008 #include <math.h>
5009 int main(int argc, char **argv) { return isnan(sin((double)argc)); }
5010 EOF
5011 if compile_prog "" "" ; then
5012   :
5013 elif compile_prog "" "-lm" ; then
5014   LIBS="-lm $LIBS"
5015 else
5016   error_exit "libm check failed"
5017 fi
5018
5019 ##########################################
5020 # Do we need librt
5021 # uClibc provides 2 versions of clock_gettime(), one with realtime
5022 # support and one without. This means that the clock_gettime() don't
5023 # need -lrt. We still need it for timer_create() so we check for this
5024 # function in addition.
5025 cat > $TMPC <<EOF
5026 #include <signal.h>
5027 #include <time.h>
5028 int main(void) {
5029   timer_create(CLOCK_REALTIME, NULL, NULL);
5030   return clock_gettime(CLOCK_REALTIME, NULL);
5031 }
5032 EOF
5033
5034 if compile_prog "" "" ; then
5035   :
5036 # we need pthread for static linking. use previous pthread test result
5037 elif compile_prog "" "$pthread_lib -lrt" ; then
5038   LIBS="$LIBS -lrt"
5039 fi
5040
5041 # Check whether we need to link libutil for openpty()
5042 cat > $TMPC << EOF
5043 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
5044 int main(void) { return openpty(0, 0, 0, 0, 0); }
5045 EOF
5046
5047 have_openpty="no"
5048 if compile_prog "" "" ; then
5049   have_openpty="yes"
5050 else
5051   if compile_prog "" "-lutil" ; then
5052     libs_tools="-lutil $libs_tools"
5053     have_openpty="yes"
5054   fi
5055 fi
5056
5057 ##########################################
5058 # spice probe
5059 if test "$spice" != "no" ; then
5060   cat > $TMPC << EOF
5061 #include <spice.h>
5062 int main(void) { spice_server_new(); return 0; }
5063 EOF
5064   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
5065   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
5066   if $pkg_config --atleast-version=0.12.5 spice-server && \
5067      $pkg_config --atleast-version=0.12.3 spice-protocol && \
5068      compile_prog "$spice_cflags" "$spice_libs" ; then
5069     spice="yes"
5070     QEMU_CFLAGS="$QEMU_CFLAGS $spice_cflags"
5071   else
5072     if test "$spice" = "yes" ; then
5073       feature_not_found "spice" \
5074           "Install spice-server(>=0.12.5) and spice-protocol(>=0.12.3) devel"
5075     fi
5076     spice="no"
5077   fi
5078 fi
5079
5080 # check for smartcard support
5081 if test "$smartcard" != "no"; then
5082     if $pkg_config --atleast-version=2.5.1 libcacard; then
5083         libcacard_cflags=$($pkg_config --cflags libcacard)
5084         libcacard_libs=$($pkg_config --libs libcacard)
5085         smartcard="yes"
5086     else
5087         if test "$smartcard" = "yes"; then
5088             feature_not_found "smartcard" "Install libcacard devel"
5089         fi
5090         smartcard="no"
5091     fi
5092 fi
5093
5094 # check for libusb
5095 if test "$libusb" != "no" ; then
5096     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
5097         libusb="yes"
5098         libusb_cflags=$($pkg_config --cflags libusb-1.0)
5099         libusb_libs=$($pkg_config --libs libusb-1.0)
5100     else
5101         if test "$libusb" = "yes"; then
5102             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
5103         fi
5104         libusb="no"
5105     fi
5106 fi
5107
5108 # check for usbredirparser for usb network redirection support
5109 if test "$usb_redir" != "no" ; then
5110     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
5111         usb_redir="yes"
5112         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
5113         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
5114     else
5115         if test "$usb_redir" = "yes"; then
5116             feature_not_found "usb-redir" "Install usbredir devel"
5117         fi
5118         usb_redir="no"
5119     fi
5120 fi
5121
5122 ##########################################
5123 # check if we have VSS SDK headers for win
5124
5125 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
5126         test "$vss_win32_sdk" != "no" ; then
5127   case "$vss_win32_sdk" in
5128     "")   vss_win32_include="-isystem $source_path" ;;
5129     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
5130           # handle path with spaces. So we symlink the headers into ".sdk/vss".
5131           vss_win32_include="-isystem $source_path/.sdk/vss"
5132           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
5133           ;;
5134     *)    vss_win32_include="-isystem $vss_win32_sdk"
5135   esac
5136   cat > $TMPC << EOF
5137 #define __MIDL_user_allocate_free_DEFINED__
5138 #include <inc/win2003/vss.h>
5139 int main(void) { return VSS_CTX_BACKUP; }
5140 EOF
5141   if compile_prog "$vss_win32_include" "" ; then
5142     guest_agent_with_vss="yes"
5143     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
5144     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
5145     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
5146   else
5147     if test "$vss_win32_sdk" != "" ; then
5148       echo "ERROR: Please download and install Microsoft VSS SDK:"
5149       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
5150       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
5151       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
5152       echo "ERROR: The headers are extracted in the directory \`inc'."
5153       feature_not_found "VSS support"
5154     fi
5155     guest_agent_with_vss="no"
5156   fi
5157 fi
5158
5159 ##########################################
5160 # lookup Windows platform SDK (if not specified)
5161 # The SDK is needed only to build .tlb (type library) file of guest agent
5162 # VSS provider from the source. It is usually unnecessary because the
5163 # pre-compiled .tlb file is included.
5164
5165 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
5166         test "$guest_agent_with_vss" = "yes" ; then
5167   if test -z "$win_sdk"; then
5168     programfiles="$PROGRAMFILES"
5169     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
5170     if test -n "$programfiles"; then
5171       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
5172     else
5173       feature_not_found "Windows SDK"
5174     fi
5175   elif test "$win_sdk" = "no"; then
5176     win_sdk=""
5177   fi
5178 fi
5179
5180 ##########################################
5181 # check if mingw environment provides a recent ntddscsi.h
5182 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
5183   cat > $TMPC << EOF
5184 #include <windows.h>
5185 #include <ntddscsi.h>
5186 int main(void) {
5187 #if !defined(IOCTL_SCSI_GET_ADDRESS)
5188 #error Missing required ioctl definitions
5189 #endif
5190   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
5191   return addr.Lun;
5192 }
5193 EOF
5194   if compile_prog "" "" ; then
5195     guest_agent_ntddscsi=yes
5196     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
5197   fi
5198 fi
5199
5200 ##########################################
5201 # virgl renderer probe
5202
5203 if test "$virglrenderer" != "no" ; then
5204   cat > $TMPC << EOF
5205 #include <virglrenderer.h>
5206 int main(void) { virgl_renderer_poll(); return 0; }
5207 EOF
5208   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
5209   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
5210   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
5211   if $pkg_config virglrenderer >/dev/null 2>&1 && \
5212      compile_prog "$virgl_cflags" "$virgl_libs" ; then
5213     virglrenderer="yes"
5214   else
5215     if test "$virglrenderer" = "yes" ; then
5216       feature_not_found "virglrenderer"
5217     fi
5218     virglrenderer="no"
5219   fi
5220 fi
5221
5222 ##########################################
5223 # capstone
5224
5225 case "$capstone" in
5226   "" | yes)
5227     if $pkg_config capstone; then
5228       capstone=system
5229     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
5230       capstone=git
5231     elif test -e "${source_path}/capstone/Makefile" ; then
5232       capstone=internal
5233     elif test -z "$capstone" ; then
5234       capstone=no
5235     else
5236       feature_not_found "capstone" "Install capstone devel or git submodule"
5237     fi
5238     ;;
5239
5240   system)
5241     if ! $pkg_config capstone; then
5242       feature_not_found "capstone" "Install capstone devel"
5243     fi
5244     ;;
5245 esac
5246
5247 case "$capstone" in
5248   git | internal)
5249     if test "$capstone" = git; then
5250       git_submodules="${git_submodules} capstone"
5251     fi
5252     mkdir -p capstone
5253     QEMU_CFLAGS="$QEMU_CFLAGS -I${source_path}/capstone/include"
5254     if test "$mingw32" = "yes"; then
5255       LIBCAPSTONE=capstone.lib
5256     else
5257       LIBCAPSTONE=libcapstone.a
5258     fi
5259     capstone_libs="-L$PWD/capstone -lcapstone"
5260     capstone_cflags="-I${source_path}/capstone/include"
5261     ;;
5262
5263   system)
5264     capstone_libs="$($pkg_config --libs capstone)"
5265     capstone_cflags="$($pkg_config --cflags capstone)"
5266     QEMU_CFLAGS="$QEMU_CFLAGS $($pkg_config --cflags capstone)"
5267     ;;
5268
5269   no)
5270     ;;
5271   *)
5272     error_exit "Unknown state for capstone: $capstone"
5273     ;;
5274 esac
5275
5276 ##########################################
5277 # check if we have fdatasync
5278
5279 fdatasync=no
5280 cat > $TMPC << EOF
5281 #include <unistd.h>
5282 int main(void) {
5283 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
5284 return fdatasync(0);
5285 #else
5286 #error Not supported
5287 #endif
5288 }
5289 EOF
5290 if compile_prog "" "" ; then
5291     fdatasync=yes
5292 fi
5293
5294 ##########################################
5295 # check if we have madvise
5296
5297 madvise=no
5298 cat > $TMPC << EOF
5299 #include <sys/types.h>
5300 #include <sys/mman.h>
5301 #include <stddef.h>
5302 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
5303 EOF
5304 if compile_prog "" "" ; then
5305     madvise=yes
5306 fi
5307
5308 ##########################################
5309 # check if we have posix_madvise
5310
5311 posix_madvise=no
5312 cat > $TMPC << EOF
5313 #include <sys/mman.h>
5314 #include <stddef.h>
5315 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
5316 EOF
5317 if compile_prog "" "" ; then
5318     posix_madvise=yes
5319 fi
5320
5321 ##########################################
5322 # check if we have posix_memalign()
5323
5324 posix_memalign=no
5325 cat > $TMPC << EOF
5326 #include <stdlib.h>
5327 int main(void) {
5328     void *p;
5329     return posix_memalign(&p, 8, 8);
5330 }
5331 EOF
5332 if compile_prog "" "" ; then
5333     posix_memalign=yes
5334 fi
5335
5336 ##########################################
5337 # check if we have posix_syslog
5338
5339 posix_syslog=no
5340 cat > $TMPC << EOF
5341 #include <syslog.h>
5342 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
5343 EOF
5344 if compile_prog "" "" ; then
5345     posix_syslog=yes
5346 fi
5347
5348 ##########################################
5349 # check if we have sem_timedwait
5350
5351 sem_timedwait=no
5352 cat > $TMPC << EOF
5353 #include <semaphore.h>
5354 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
5355 EOF
5356 if compile_prog "" "" ; then
5357     sem_timedwait=yes
5358 fi
5359
5360 ##########################################
5361 # check if we have strchrnul
5362
5363 strchrnul=no
5364 cat > $TMPC << EOF
5365 #include <string.h>
5366 int main(void);
5367 // Use a haystack that the compiler shouldn't be able to constant fold
5368 char *haystack = (char*)&main;
5369 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
5370 EOF
5371 if compile_prog "" "" ; then
5372     strchrnul=yes
5373 fi
5374
5375 #########################################
5376 # check if we have st_atim
5377
5378 st_atim=no
5379 cat > $TMPC << EOF
5380 #include <sys/stat.h>
5381 #include <stddef.h>
5382 int main(void) { return offsetof(struct stat, st_atim); }
5383 EOF
5384 if compile_prog "" "" ; then
5385     st_atim=yes
5386 fi
5387
5388 ##########################################
5389 # check if trace backend exists
5390
5391 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
5392 if test "$?" -ne 0 ; then
5393   error_exit "invalid trace backends" \
5394       "Please choose supported trace backends."
5395 fi
5396
5397 ##########################################
5398 # For 'ust' backend, test if ust headers are present
5399 if have_backend "ust"; then
5400   cat > $TMPC << EOF
5401 #include <lttng/tracepoint.h>
5402 int main(void) { return 0; }
5403 EOF
5404   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
5405     if $pkg_config lttng-ust --exists; then
5406       lttng_ust_libs=$($pkg_config --libs lttng-ust)
5407     else
5408       lttng_ust_libs="-llttng-ust -ldl"
5409     fi
5410     if $pkg_config liburcu-bp --exists; then
5411       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
5412     else
5413       urcu_bp_libs="-lurcu-bp"
5414     fi
5415
5416     LIBS="$lttng_ust_libs $urcu_bp_libs $LIBS"
5417   else
5418     error_exit "Trace backend 'ust' missing lttng-ust header files"
5419   fi
5420 fi
5421
5422 ##########################################
5423 # For 'dtrace' backend, test if 'dtrace' command is present
5424 if have_backend "dtrace"; then
5425   if ! has 'dtrace' ; then
5426     error_exit "dtrace command is not found in PATH $PATH"
5427   fi
5428   trace_backend_stap="no"
5429   if has 'stap' ; then
5430     trace_backend_stap="yes"
5431   fi
5432 fi
5433
5434 ##########################################
5435 # check and set a backend for coroutine
5436
5437 # We prefer ucontext, but it's not always possible. The fallback
5438 # is sigcontext. On Windows the only valid backend is the Windows
5439 # specific one.
5440
5441 ucontext_works=no
5442 if test "$darwin" != "yes"; then
5443   cat > $TMPC << EOF
5444 #include <ucontext.h>
5445 #ifdef __stub_makecontext
5446 #error Ignoring glibc stub makecontext which will always fail
5447 #endif
5448 int main(void) { makecontext(0, 0, 0); return 0; }
5449 EOF
5450   if compile_prog "" "" ; then
5451     ucontext_works=yes
5452   fi
5453 fi
5454
5455 if test "$coroutine" = ""; then
5456   if test "$mingw32" = "yes"; then
5457     coroutine=win32
5458   elif test "$ucontext_works" = "yes"; then
5459     coroutine=ucontext
5460   else
5461     coroutine=sigaltstack
5462   fi
5463 else
5464   case $coroutine in
5465   windows)
5466     if test "$mingw32" != "yes"; then
5467       error_exit "'windows' coroutine backend only valid for Windows"
5468     fi
5469     # Unfortunately the user visible backend name doesn't match the
5470     # coroutine-*.c filename for this case, so we have to adjust it here.
5471     coroutine=win32
5472     ;;
5473   ucontext)
5474     if test "$ucontext_works" != "yes"; then
5475       feature_not_found "ucontext"
5476     fi
5477     ;;
5478   sigaltstack)
5479     if test "$mingw32" = "yes"; then
5480       error_exit "only the 'windows' coroutine backend is valid for Windows"
5481     fi
5482     ;;
5483   *)
5484     error_exit "unknown coroutine backend $coroutine"
5485     ;;
5486   esac
5487 fi
5488
5489 if test "$coroutine_pool" = ""; then
5490   coroutine_pool=yes
5491 fi
5492
5493 if test "$debug_stack_usage" = "yes"; then
5494   if test "$coroutine_pool" = "yes"; then
5495     echo "WARN: disabling coroutine pool for stack usage debugging"
5496     coroutine_pool=no
5497   fi
5498 fi
5499
5500 ##################################################
5501 # SafeStack
5502
5503
5504 if test "$safe_stack" = "yes"; then
5505 cat > $TMPC << EOF
5506 int main(int argc, char *argv[])
5507 {
5508 #if ! __has_feature(safe_stack)
5509 #error SafeStack Disabled
5510 #endif
5511     return 0;
5512 }
5513 EOF
5514   flag="-fsanitize=safe-stack"
5515   # Check that safe-stack is supported and enabled.
5516   if compile_prog "-Werror $flag" "$flag"; then
5517     # Flag needed both at compilation and at linking
5518     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
5519     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
5520   else
5521     error_exit "SafeStack not supported by your compiler"
5522   fi
5523   if test "$coroutine" != "ucontext"; then
5524     error_exit "SafeStack is only supported by the coroutine backend ucontext"
5525   fi
5526 else
5527 cat > $TMPC << EOF
5528 int main(int argc, char *argv[])
5529 {
5530 #if defined(__has_feature)
5531 #if __has_feature(safe_stack)
5532 #error SafeStack Enabled
5533 #endif
5534 #endif
5535     return 0;
5536 }
5537 EOF
5538 if test "$safe_stack" = "no"; then
5539   # Make sure that safe-stack is disabled
5540   if ! compile_prog "-Werror" ""; then
5541     # SafeStack was already enabled, try to explicitly remove the feature
5542     flag="-fno-sanitize=safe-stack"
5543     if ! compile_prog "-Werror $flag" "$flag"; then
5544       error_exit "Configure cannot disable SafeStack"
5545     fi
5546     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
5547     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
5548   fi
5549 else # "$safe_stack" = ""
5550   # Set safe_stack to yes or no based on pre-existing flags
5551   if compile_prog "-Werror" ""; then
5552     safe_stack="no"
5553   else
5554     safe_stack="yes"
5555     if test "$coroutine" != "ucontext"; then
5556       error_exit "SafeStack is only supported by the coroutine backend ucontext"
5557     fi
5558   fi
5559 fi
5560 fi
5561
5562 ##########################################
5563 # check if we have open_by_handle_at
5564
5565 open_by_handle_at=no
5566 cat > $TMPC << EOF
5567 #include <fcntl.h>
5568 #if !defined(AT_EMPTY_PATH)
5569 # error missing definition
5570 #else
5571 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
5572 #endif
5573 EOF
5574 if compile_prog "" "" ; then
5575     open_by_handle_at=yes
5576 fi
5577
5578 ########################################
5579 # check if we have linux/magic.h
5580
5581 linux_magic_h=no
5582 cat > $TMPC << EOF
5583 #include <linux/magic.h>
5584 int main(void) {
5585   return 0;
5586 }
5587 EOF
5588 if compile_prog "" "" ; then
5589     linux_magic_h=yes
5590 fi
5591
5592 ########################################
5593 # check if we have valgrind/valgrind.h
5594
5595 valgrind_h=no
5596 cat > $TMPC << EOF
5597 #include <valgrind/valgrind.h>
5598 int main(void) {
5599   return 0;
5600 }
5601 EOF
5602 if compile_prog "" "" ; then
5603     valgrind_h=yes
5604 fi
5605
5606 ########################################
5607 # check if environ is declared
5608
5609 has_environ=no
5610 cat > $TMPC << EOF
5611 #include <unistd.h>
5612 int main(void) {
5613     environ = 0;
5614     return 0;
5615 }
5616 EOF
5617 if compile_prog "" "" ; then
5618     has_environ=yes
5619 fi
5620
5621 ########################################
5622 # check if cpuid.h is usable.
5623
5624 cat > $TMPC << EOF
5625 #include <cpuid.h>
5626 int main(void) {
5627     unsigned a, b, c, d;
5628     int max = __get_cpuid_max(0, 0);
5629
5630     if (max >= 1) {
5631         __cpuid(1, a, b, c, d);
5632     }
5633
5634     if (max >= 7) {
5635         __cpuid_count(7, 0, a, b, c, d);
5636     }
5637
5638     return 0;
5639 }
5640 EOF
5641 if compile_prog "" "" ; then
5642     cpuid_h=yes
5643 fi
5644
5645 ##########################################
5646 # avx2 optimization requirement check
5647 #
5648 # There is no point enabling this if cpuid.h is not usable,
5649 # since we won't be able to select the new routines.
5650
5651 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
5652   cat > $TMPC << EOF
5653 #pragma GCC push_options
5654 #pragma GCC target("avx2")
5655 #include <cpuid.h>
5656 #include <immintrin.h>
5657 static int bar(void *a) {
5658     __m256i x = *(__m256i *)a;
5659     return _mm256_testz_si256(x, x);
5660 }
5661 int main(int argc, char *argv[]) { return bar(argv[0]); }
5662 EOF
5663   if compile_object "" ; then
5664     avx2_opt="yes"
5665   else
5666     avx2_opt="no"
5667   fi
5668 fi
5669
5670 ##########################################
5671 # avx512f optimization requirement check
5672 #
5673 # There is no point enabling this if cpuid.h is not usable,
5674 # since we won't be able to select the new routines.
5675 # by default, it is turned off.
5676 # if user explicitly want to enable it, check environment
5677
5678 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
5679   cat > $TMPC << EOF
5680 #pragma GCC push_options
5681 #pragma GCC target("avx512f")
5682 #include <cpuid.h>
5683 #include <immintrin.h>
5684 static int bar(void *a) {
5685     __m512i x = *(__m512i *)a;
5686     return _mm512_test_epi64_mask(x, x);
5687 }
5688 int main(int argc, char *argv[])
5689 {
5690         return bar(argv[0]);
5691 }
5692 EOF
5693   if ! compile_object "" ; then
5694     avx512f_opt="no"
5695   fi
5696 else
5697   avx512f_opt="no"
5698 fi
5699
5700 ########################################
5701 # check if __[u]int128_t is usable.
5702
5703 int128=no
5704 cat > $TMPC << EOF
5705 __int128_t a;
5706 __uint128_t b;
5707 int main (void) {
5708   a = a + b;
5709   b = a * b;
5710   a = a * a;
5711   return 0;
5712 }
5713 EOF
5714 if compile_prog "" "" ; then
5715     int128=yes
5716 fi
5717
5718 #########################################
5719 # See if 128-bit atomic operations are supported.
5720
5721 atomic128=no
5722 if test "$int128" = "yes"; then
5723   cat > $TMPC << EOF
5724 int main(void)
5725 {
5726   unsigned __int128 x = 0, y = 0;
5727   y = __atomic_load_16(&x, 0);
5728   __atomic_store_16(&x, y, 0);
5729   __atomic_compare_exchange_16(&x, &y, x, 0, 0, 0);
5730   return 0;
5731 }
5732 EOF
5733   if compile_prog "" "" ; then
5734     atomic128=yes
5735   fi
5736 fi
5737
5738 cmpxchg128=no
5739 if test "$int128" = yes && test "$atomic128" = no; then
5740   cat > $TMPC << EOF
5741 int main(void)
5742 {
5743   unsigned __int128 x = 0, y = 0;
5744   __sync_val_compare_and_swap_16(&x, y, x);
5745   return 0;
5746 }
5747 EOF
5748   if compile_prog "" "" ; then
5749     cmpxchg128=yes
5750   fi
5751 fi
5752
5753 #########################################
5754 # See if 64-bit atomic operations are supported.
5755 # Note that without __atomic builtins, we can only
5756 # assume atomic loads/stores max at pointer size.
5757
5758 cat > $TMPC << EOF
5759 #include <stdint.h>
5760 int main(void)
5761 {
5762   uint64_t x = 0, y = 0;
5763 #ifdef __ATOMIC_RELAXED
5764   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
5765   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
5766   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
5767   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
5768   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
5769 #else
5770   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
5771   __sync_lock_test_and_set(&x, y);
5772   __sync_val_compare_and_swap(&x, y, 0);
5773   __sync_fetch_and_add(&x, y);
5774 #endif
5775   return 0;
5776 }
5777 EOF
5778 if compile_prog "" "" ; then
5779   atomic64=yes
5780 fi
5781
5782 #########################################
5783 # See if --dynamic-list is supported by the linker
5784 ld_dynamic_list="no"
5785 if test "$static" = "no" ; then
5786     cat > $TMPTXT <<EOF
5787 {
5788   foo;
5789 };
5790 EOF
5791
5792     cat > $TMPC <<EOF
5793 #include <stdio.h>
5794 void foo(void);
5795
5796 void foo(void)
5797 {
5798   printf("foo\n");
5799 }
5800
5801 int main(void)
5802 {
5803   foo();
5804   return 0;
5805 }
5806 EOF
5807
5808     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
5809         ld_dynamic_list="yes"
5810     fi
5811 fi
5812
5813 #########################################
5814 # See if -exported_symbols_list is supported by the linker
5815
5816 ld_exported_symbols_list="no"
5817 if test "$static" = "no" ; then
5818     cat > $TMPTXT <<EOF
5819   _foo
5820 EOF
5821
5822     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
5823         ld_exported_symbols_list="yes"
5824     fi
5825 fi
5826
5827 if  test "$plugins" = "yes" &&
5828     test "$ld_dynamic_list" = "no" &&
5829     test "$ld_exported_symbols_list" = "no" ; then
5830   error_exit \
5831       "Plugin support requires dynamic linking and specifying a set of symbols " \
5832       "that are exported to plugins. Unfortunately your linker doesn't " \
5833       "support the flag (--dynamic-list or -exported_symbols_list) used " \
5834       "for this purpose. You can't build with --static."
5835 fi
5836
5837 ########################################
5838 # See if __attribute__((alias)) is supported.
5839 # This false for Xcode 9, but has been remedied for Xcode 10.
5840 # Unfortunately, travis uses Xcode 9 by default.
5841
5842 attralias=no
5843 cat > $TMPC << EOF
5844 int x = 1;
5845 extern const int y __attribute__((alias("x")));
5846 int main(void) { return 0; }
5847 EOF
5848 if compile_prog "" "" ; then
5849     attralias=yes
5850 fi
5851
5852 ########################################
5853 # check if getauxval is available.
5854
5855 getauxval=no
5856 cat > $TMPC << EOF
5857 #include <sys/auxv.h>
5858 int main(void) {
5859   return getauxval(AT_HWCAP) == 0;
5860 }
5861 EOF
5862 if compile_prog "" "" ; then
5863     getauxval=yes
5864 fi
5865
5866 ########################################
5867 # check if ccache is interfering with
5868 # semantic analysis of macros
5869
5870 unset CCACHE_CPP2
5871 ccache_cpp2=no
5872 cat > $TMPC << EOF
5873 static const int Z = 1;
5874 #define fn() ({ Z; })
5875 #define TAUT(X) ((X) == Z)
5876 #define PAREN(X, Y) (X == Y)
5877 #define ID(X) (X)
5878 int main(int argc, char *argv[])
5879 {
5880     int x = 0, y = 0;
5881     x = ID(x);
5882     x = fn();
5883     fn();
5884     if (PAREN(x, y)) return 0;
5885     if (TAUT(Z)) return 0;
5886     return 0;
5887 }
5888 EOF
5889
5890 if ! compile_object "-Werror"; then
5891     ccache_cpp2=yes
5892 fi
5893
5894 #################################################
5895 # clang does not support glibc + FORTIFY_SOURCE.
5896
5897 if test "$fortify_source" != "no"; then
5898   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
5899     fortify_source="no";
5900   elif test -n "$cxx" && has $cxx &&
5901        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
5902     fortify_source="no";
5903   else
5904     fortify_source="yes"
5905   fi
5906 fi
5907
5908 ###############################################
5909 # Check if copy_file_range is provided by glibc
5910 have_copy_file_range=no
5911 cat > $TMPC << EOF
5912 #include <unistd.h>
5913 int main(void) {
5914   copy_file_range(0, NULL, 0, NULL, 0, 0);
5915   return 0;
5916 }
5917 EOF
5918 if compile_prog "" "" ; then
5919     have_copy_file_range=yes
5920 fi
5921
5922 ##########################################
5923 # check if struct fsxattr is available via linux/fs.h
5924
5925 have_fsxattr=no
5926 cat > $TMPC << EOF
5927 #include <linux/fs.h>
5928 struct fsxattr foo;
5929 int main(void) {
5930   return 0;
5931 }
5932 EOF
5933 if compile_prog "" "" ; then
5934     have_fsxattr=yes
5935 fi
5936
5937 ##########################################
5938 # check for usable membarrier system call
5939 if test "$membarrier" = "yes"; then
5940     have_membarrier=no
5941     if test "$mingw32" = "yes" ; then
5942         have_membarrier=yes
5943     elif test "$linux" = "yes" ; then
5944         cat > $TMPC << EOF
5945     #include <linux/membarrier.h>
5946     #include <sys/syscall.h>
5947     #include <unistd.h>
5948     #include <stdlib.h>
5949     int main(void) {
5950         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
5951         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
5952         exit(0);
5953     }
5954 EOF
5955         if compile_prog "" "" ; then
5956             have_membarrier=yes
5957         fi
5958     fi
5959     if test "$have_membarrier" = "no"; then
5960       feature_not_found "membarrier" "membarrier system call not available"
5961     fi
5962 else
5963     # Do not enable it by default even for Mingw32, because it doesn't
5964     # work on Wine.
5965     membarrier=no
5966 fi
5967
5968 ##########################################
5969 # check if rtnetlink.h exists and is useful
5970 have_rtnetlink=no
5971 cat > $TMPC << EOF
5972 #include <linux/rtnetlink.h>
5973 int main(void) {
5974   return IFLA_PROTO_DOWN;
5975 }
5976 EOF
5977 if compile_prog "" "" ; then
5978     have_rtnetlink=yes
5979 fi
5980
5981 ##########################################
5982 # check for usable AF_VSOCK environment
5983 have_af_vsock=no
5984 cat > $TMPC << EOF
5985 #include <errno.h>
5986 #include <sys/types.h>
5987 #include <sys/socket.h>
5988 #if !defined(AF_VSOCK)
5989 # error missing AF_VSOCK flag
5990 #endif
5991 #include <linux/vm_sockets.h>
5992 int main(void) {
5993     int sock, ret;
5994     struct sockaddr_vm svm;
5995     socklen_t len = sizeof(svm);
5996     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
5997     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
5998     if ((ret == -1) && (errno == ENOTCONN)) {
5999         return 0;
6000     }
6001     return -1;
6002 }
6003 EOF
6004 if compile_prog "" "" ; then
6005     have_af_vsock=yes
6006 fi
6007
6008 ##########################################
6009 # check for usable AF_ALG environment
6010 have_afalg=no
6011 cat > $TMPC << EOF
6012 #include <errno.h>
6013 #include <sys/types.h>
6014 #include <sys/socket.h>
6015 #include <linux/if_alg.h>
6016 int main(void) {
6017     int sock;
6018     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
6019     return sock;
6020 }
6021 EOF
6022 if compile_prog "" "" ; then
6023     have_afalg=yes
6024 fi
6025 if test "$crypto_afalg" = "yes"
6026 then
6027     if test "$have_afalg" != "yes"
6028     then
6029         error_exit "AF_ALG requested but could not be detected"
6030     fi
6031 fi
6032
6033
6034 #################################################
6035 # Check to see if we have the Hypervisor framework
6036 if [ "$darwin" = "yes" ] ; then
6037   cat > $TMPC << EOF
6038 #include <Hypervisor/hv.h>
6039 int main() { return 0;}
6040 EOF
6041   if ! compile_object ""; then
6042     hvf='no'
6043   else
6044     hvf='yes'
6045     QEMU_LDFLAGS="-framework Hypervisor $QEMU_LDFLAGS"
6046   fi
6047 fi
6048
6049 ##########################################
6050 # check for sysmacros.h
6051
6052 have_sysmacros=no
6053 cat > $TMPC << EOF
6054 #include <sys/sysmacros.h>
6055 int main(void) {
6056     return makedev(0, 0);
6057 }
6058 EOF
6059 if compile_prog "" "" ; then
6060     have_sysmacros=yes
6061 fi
6062
6063 ##########################################
6064 # check for _Static_assert()
6065
6066 have_static_assert=no
6067 cat > $TMPC << EOF
6068 _Static_assert(1, "success");
6069 int main(void) {
6070     return 0;
6071 }
6072 EOF
6073 if compile_prog "" "" ; then
6074     have_static_assert=yes
6075 fi
6076
6077 ##########################################
6078 # check for utmpx.h, it is missing e.g. on OpenBSD
6079
6080 have_utmpx=no
6081 cat > $TMPC << EOF
6082 #include <utmpx.h>
6083 struct utmpx user_info;
6084 int main(void) {
6085     return 0;
6086 }
6087 EOF
6088 if compile_prog "" "" ; then
6089     have_utmpx=yes
6090 fi
6091
6092 ##########################################
6093 # check for getrandom()
6094
6095 have_getrandom=no
6096 cat > $TMPC << EOF
6097 #include <sys/random.h>
6098 int main(void) {
6099     return getrandom(0, 0, GRND_NONBLOCK);
6100 }
6101 EOF
6102 if compile_prog "" "" ; then
6103     have_getrandom=yes
6104 fi
6105
6106 ##########################################
6107 # checks for sanitizers
6108
6109 have_asan=no
6110 have_ubsan=no
6111 have_asan_iface_h=no
6112 have_asan_iface_fiber=no
6113
6114 if test "$sanitizers" = "yes" ; then
6115   write_c_skeleton
6116   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
6117       have_asan=yes
6118   fi
6119
6120   # we could use a simple skeleton for flags checks, but this also
6121   # detect the static linking issue of ubsan, see also:
6122   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
6123   cat > $TMPC << EOF
6124 #include <stdlib.h>
6125 int main(void) {
6126     void *tmp = malloc(10);
6127     if (tmp != NULL) {
6128         return *(int *)(tmp + 2);
6129     }
6130     return 1;
6131 }
6132 EOF
6133   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
6134       have_ubsan=yes
6135   fi
6136
6137   if check_include "sanitizer/asan_interface.h" ; then
6138       have_asan_iface_h=yes
6139   fi
6140
6141   cat > $TMPC << EOF
6142 #include <sanitizer/asan_interface.h>
6143 int main(void) {
6144   __sanitizer_start_switch_fiber(0, 0, 0);
6145   return 0;
6146 }
6147 EOF
6148   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
6149       have_asan_iface_fiber=yes
6150   fi
6151 fi
6152
6153 ##########################################
6154 # checks for fuzzer
6155 if test "$fuzzing" = "yes" ; then
6156   write_c_fuzzer_skeleton
6157   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
6158     have_fuzzer=yes
6159   else
6160     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
6161     exit 1
6162   fi
6163 fi
6164
6165 # Thread sanitizer is, for now, much noisier than the other sanitizers;
6166 # keep it separate until that is not the case.
6167 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
6168   error_exit "TSAN is not supported with other sanitiziers."
6169 fi
6170 have_tsan=no
6171 have_tsan_iface_fiber=no
6172 if test "$tsan" = "yes" ; then
6173   write_c_skeleton
6174   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
6175       have_tsan=yes
6176   fi
6177   cat > $TMPC << EOF
6178 #include <sanitizer/tsan_interface.h>
6179 int main(void) {
6180   __tsan_create_fiber(0);
6181   return 0;
6182 }
6183 EOF
6184   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
6185       have_tsan_iface_fiber=yes
6186   fi
6187 fi
6188
6189 ##########################################
6190 # check for libpmem
6191
6192 if test "$libpmem" != "no"; then
6193         if $pkg_config --exists "libpmem"; then
6194                 libpmem="yes"
6195                 libpmem_libs=$($pkg_config --libs libpmem)
6196                 libpmem_cflags=$($pkg_config --cflags libpmem)
6197                 QEMU_CFLAGS="$QEMU_CFLAGS $libpmem_cflags"
6198         else
6199                 if test "$libpmem" = "yes" ; then
6200                         feature_not_found "libpmem" "Install nvml or pmdk"
6201                 fi
6202                 libpmem="no"
6203         fi
6204 fi
6205
6206 ##########################################
6207 # check for libdaxctl
6208
6209 if test "$libdaxctl" != "no"; then
6210         if $pkg_config --atleast-version=57 "libdaxctl"; then
6211                 libdaxctl="yes"
6212                 libdaxctl_libs=$($pkg_config --libs libdaxctl)
6213                 libdaxctl_cflags=$($pkg_config --cflags libdaxctl)
6214                 QEMU_CFLAGS="$QEMU_CFLAGS $libdaxctl_cflags"
6215         else
6216                 if test "$libdaxctl" = "yes" ; then
6217                         feature_not_found "libdaxctl" "Install libdaxctl"
6218                 fi
6219                 libdaxctl="no"
6220         fi
6221 fi
6222
6223 ##########################################
6224 # check for slirp
6225
6226 # slirp is only required when building softmmu targets
6227 if test -z "$slirp" -a "$softmmu" != "yes" ; then
6228     slirp="no"
6229 fi
6230
6231 case "$slirp" in
6232   "" | yes)
6233     if $pkg_config slirp; then
6234       slirp=system
6235     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
6236       slirp=git
6237     elif test -e "${source_path}/slirp/Makefile" ; then
6238       slirp=internal
6239     elif test -z "$slirp" ; then
6240       slirp=no
6241     else
6242       feature_not_found "slirp" "Install slirp devel or git submodule"
6243     fi
6244     ;;
6245
6246   system)
6247     if ! $pkg_config slirp; then
6248       feature_not_found "slirp" "Install slirp devel"
6249     fi
6250     ;;
6251 esac
6252
6253 case "$slirp" in
6254   git | internal)
6255     if test "$slirp" = git; then
6256       git_submodules="${git_submodules} slirp"
6257     fi
6258     mkdir -p slirp
6259     slirp_cflags="-I${source_path}/slirp/src -I$PWD/slirp/src"
6260     slirp_libs="-L$PWD/slirp -lslirp"
6261     if test "$mingw32" = "yes" ; then
6262       slirp_libs="$slirp_libs -lws2_32 -liphlpapi"
6263     fi
6264     ;;
6265
6266   system)
6267     slirp_version=$($pkg_config --modversion slirp 2>/dev/null)
6268     slirp_cflags=$($pkg_config --cflags slirp 2>/dev/null)
6269     slirp_libs=$($pkg_config --libs slirp 2>/dev/null)
6270     ;;
6271
6272   no)
6273     ;;
6274   *)
6275     error_exit "Unknown state for slirp: $slirp"
6276     ;;
6277 esac
6278
6279 ##########################################
6280 # check for usable __NR_keyctl syscall
6281
6282 if test "$linux" = "yes" ; then
6283
6284     have_keyring=no
6285     cat > $TMPC << EOF
6286 #include <errno.h>
6287 #include <asm/unistd.h>
6288 #include <linux/keyctl.h>
6289 #include <unistd.h>
6290 int main(void) {
6291     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
6292 }
6293 EOF
6294     if compile_prog "" "" ; then
6295         have_keyring=yes
6296     fi
6297 fi
6298 if test "$secret_keyring" != "no"
6299 then
6300     if test "$have_keyring" = "yes"
6301     then
6302         secret_keyring=yes
6303     else
6304         if test "$secret_keyring" = "yes"
6305         then
6306             error_exit "syscall __NR_keyctl requested, \
6307 but not implemented on your system"
6308         else
6309             secret_keyring=no
6310         fi
6311     fi
6312 fi
6313
6314 ##########################################
6315 # check for usable keyutils.h
6316
6317 if test "$linux" = "yes" ; then
6318
6319     have_keyutils=no
6320     cat > $TMPC << EOF
6321 #include <errno.h>
6322 #include <asm/unistd.h>
6323 #include <unistd.h>
6324 #include <sys/types.h>
6325 #include <keyutils.h>
6326 int main(void) {
6327     return request_key("user", NULL, NULL, 0);
6328 }
6329 EOF
6330     if compile_prog "" "-lkeyutils"; then
6331         have_keyutils=yes
6332     fi
6333 fi
6334
6335
6336 ##########################################
6337 # End of CC checks
6338 # After here, no more $cc or $ld runs
6339
6340 write_c_skeleton
6341
6342 if test "$gcov" = "yes" ; then
6343   :
6344 elif test "$fortify_source" = "yes" ; then
6345   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
6346   debug=no
6347 fi
6348 if test "$debug_info" = "yes"; then
6349   CFLAGS="-g $CFLAGS"
6350   LDFLAGS="-g $LDFLAGS"
6351 fi
6352 if test "$debug" = "no"; then
6353   CFLAGS="-O2 $CFLAGS"
6354 fi
6355
6356 case "$ARCH" in
6357 alpha)
6358   # Ensure there's only a single GP
6359   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
6360 ;;
6361 esac
6362
6363 if test "$gprof" = "yes" ; then
6364   QEMU_CFLAGS="-p $QEMU_CFLAGS"
6365   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
6366 fi
6367
6368 if test "$have_asan" = "yes"; then
6369   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
6370   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
6371   if test "$have_asan_iface_h" = "no" ; then
6372       echo "ASAN build enabled, but ASAN header missing." \
6373            "Without code annotation, the report may be inferior."
6374   elif test "$have_asan_iface_fiber" = "no" ; then
6375       echo "ASAN build enabled, but ASAN header is too old." \
6376            "Without code annotation, the report may be inferior."
6377   fi
6378 fi
6379 if test "$have_tsan" = "yes" ; then
6380   if test "$have_tsan_iface_fiber" = "yes" ; then
6381     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
6382     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
6383   else
6384     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
6385   fi
6386 elif test "$tsan" = "yes" ; then
6387   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
6388 fi
6389 if test "$have_ubsan" = "yes"; then
6390   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
6391   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
6392 fi
6393
6394 ##########################################
6395 # Do we have libnfs
6396 if test "$libnfs" != "no" ; then
6397   if $pkg_config --atleast-version=1.9.3 libnfs; then
6398     libnfs="yes"
6399     libnfs_libs=$($pkg_config --libs libnfs)
6400   else
6401     if test "$libnfs" = "yes" ; then
6402       feature_not_found "libnfs" "Install libnfs devel >= 1.9.3"
6403     fi
6404     libnfs="no"
6405   fi
6406 fi
6407
6408 ##########################################
6409 # Do we have libudev
6410 if test "$libudev" != "no" ; then
6411   if $pkg_config libudev && test "$static" != "yes"; then
6412     libudev="yes"
6413     libudev_libs=$($pkg_config --libs libudev)
6414   else
6415     libudev="no"
6416   fi
6417 fi
6418
6419 # Now we've finished running tests it's OK to add -Werror to the compiler flags
6420 if test "$werror" = "yes"; then
6421     QEMU_CFLAGS="-Werror $QEMU_CFLAGS"
6422 fi
6423
6424 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
6425 if test "$solaris" = "no" && test "$tsan" = "no"; then
6426     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
6427         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
6428     fi
6429 fi
6430
6431 # test if pod2man has --utf8 option
6432 if pod2man --help | grep -q utf8; then
6433     POD2MAN="pod2man --utf8"
6434 else
6435     POD2MAN="pod2man"
6436 fi
6437
6438 # Use ASLR, no-SEH and DEP if available
6439 if test "$mingw32" = "yes" ; then
6440     for flag in --dynamicbase --no-seh --nxcompat; do
6441         if ld_has $flag ; then
6442             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
6443         fi
6444     done
6445 fi
6446
6447 # Disable OpenBSD W^X if available
6448 if test "$tcg" = "yes" && test "$targetos" = "OpenBSD"; then
6449     cat > $TMPC <<EOF
6450     int main(void) { return 0; }
6451 EOF
6452     wx_ldflags="-Wl,-z,wxneeded"
6453     if compile_prog "" "$wx_ldflags"; then
6454         QEMU_LDFLAGS="$QEMU_LDFLAGS $wx_ldflags"
6455     fi
6456 fi
6457
6458 qemu_confdir="$sysconfdir/$qemu_suffix"
6459 qemu_moddir="$libdir/$qemu_suffix"
6460 qemu_datadir="$datadir/$qemu_suffix"
6461 qemu_docdir="$docdir/$qemu_suffix"
6462 qemu_localedir="$datadir/locale"
6463 qemu_icondir="$datadir/icons"
6464 qemu_desktopdir="$datadir/applications"
6465
6466 # We can only support ivshmem if we have eventfd
6467 if [ "$eventfd" = "yes" ]; then
6468   ivshmem=yes
6469 fi
6470
6471 if test "$softmmu" = yes ; then
6472   if test "$linux" = yes; then
6473     if test "$virtfs" != no && test "$cap_ng" = yes && test "$attr" = yes ; then
6474       virtfs=yes
6475     else
6476       if test "$virtfs" = yes; then
6477         error_exit "VirtFS requires libcap-ng devel and libattr devel"
6478       fi
6479       virtfs=no
6480     fi
6481     if test "$mpath" != no && test "$mpathpersist" = yes ; then
6482       mpath=yes
6483     else
6484       if test "$mpath" = yes; then
6485         error_exit "Multipath requires libmpathpersist devel"
6486       fi
6487       mpath=no
6488     fi
6489   else
6490     if test "$virtfs" = yes; then
6491       error_exit "VirtFS is supported only on Linux"
6492     fi
6493     virtfs=no
6494     if test "$mpath" = yes; then
6495       error_exit "Multipath is supported only on Linux"
6496     fi
6497     mpath=no
6498   fi
6499 fi
6500
6501 # Probe for guest agent support/options
6502
6503 if [ "$guest_agent" != "no" ]; then
6504   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
6505       guest_agent=no
6506   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
6507       guest_agent=yes
6508   elif [ "$guest_agent" != yes ]; then
6509       guest_agent=no
6510   else
6511       error_exit "Guest agent is not supported on this platform"
6512   fi
6513 fi
6514
6515 # Guest agent Window MSI  package
6516
6517 if test "$guest_agent" != yes; then
6518   if test "$guest_agent_msi" = yes; then
6519     error_exit "MSI guest agent package requires guest agent enabled"
6520   fi
6521   guest_agent_msi=no
6522 elif test "$mingw32" != "yes"; then
6523   if test "$guest_agent_msi" = "yes"; then
6524     error_exit "MSI guest agent package is available only for MinGW Windows cross-compilation"
6525   fi
6526   guest_agent_msi=no
6527 elif ! has wixl; then
6528   if test "$guest_agent_msi" = "yes"; then
6529     error_exit "MSI guest agent package requires wixl tool installed ( usually from msitools package )"
6530   fi
6531   guest_agent_msi=no
6532 else
6533   # we support qemu-ga, mingw32, and wixl: default to MSI enabled if it wasn't
6534   # disabled explicitly
6535   if test "$guest_agent_msi" != "no"; then
6536     guest_agent_msi=yes
6537   fi
6538 fi
6539
6540 if test "$guest_agent_msi" = "yes"; then
6541   if test "$guest_agent_with_vss" = "yes"; then
6542     QEMU_GA_MSI_WITH_VSS="-D InstallVss"
6543   fi
6544
6545   if test "$QEMU_GA_MANUFACTURER" = ""; then
6546     QEMU_GA_MANUFACTURER=QEMU
6547   fi
6548
6549   if test "$QEMU_GA_DISTRO" = ""; then
6550     QEMU_GA_DISTRO=Linux
6551   fi
6552
6553   if test "$QEMU_GA_VERSION" = ""; then
6554       QEMU_GA_VERSION=$(cat $source_path/VERSION)
6555   fi
6556
6557   QEMU_GA_MSI_MINGW_DLL_PATH="-D Mingw_dlls=$($pkg_config --variable=prefix glib-2.0)/bin"
6558
6559   case "$cpu" in
6560   x86_64)
6561     QEMU_GA_MSI_ARCH="-a x64 -D Arch=64"
6562     ;;
6563   i386)
6564     QEMU_GA_MSI_ARCH="-D Arch=32"
6565     ;;
6566   *)
6567     error_exit "CPU $cpu not supported for building installation package"
6568     ;;
6569   esac
6570 fi
6571
6572 # Mac OS X ships with a broken assembler
6573 roms=
6574 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
6575         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
6576         test "$softmmu" = yes ; then
6577     # Different host OS linkers have different ideas about the name of the ELF
6578     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
6579     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
6580     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
6581         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
6582             ld_i386_emulation="$emu"
6583             roms="optionrom"
6584             break
6585         fi
6586     done
6587 fi
6588
6589 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
6590 if test "$cpu" = "s390x" ; then
6591   write_c_skeleton
6592   if compile_prog "-march=z900" ""; then
6593     roms="$roms s390-ccw"
6594     # SLOF is required for building the s390-ccw firmware on s390x,
6595     # since it is using the libnet code from SLOF for network booting.
6596     if test -e "${source_path}/.git" ; then
6597       git_submodules="${git_submodules} roms/SLOF"
6598     fi
6599   fi
6600 fi
6601
6602 # Check that the C++ compiler exists and works with the C compiler.
6603 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
6604 if has $cxx; then
6605     cat > $TMPC <<EOF
6606 int c_function(void);
6607 int main(void) { return c_function(); }
6608 EOF
6609
6610     compile_object
6611
6612     cat > $TMPCXX <<EOF
6613 extern "C" {
6614    int c_function(void);
6615 }
6616 int c_function(void) { return 42; }
6617 EOF
6618
6619     update_cxxflags
6620
6621     if do_cxx $CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
6622         # C++ compiler $cxx works ok with C compiler $cc
6623         :
6624     else
6625         echo "C++ compiler $cxx does not work with C compiler $cc"
6626         echo "Disabling C++ specific optional code"
6627         cxx=
6628     fi
6629 else
6630     echo "No C++ compiler available; disabling C++ specific optional code"
6631     cxx=
6632 fi
6633
6634 echo_version() {
6635     if test "$1" = "yes" ; then
6636         echo "($2)"
6637     fi
6638 }
6639
6640 # prepend ftd flags after all config tests are done
6641 QEMU_CFLAGS="$fdt_cflags $QEMU_CFLAGS"
6642 QEMU_LDFLAGS="$fdt_ldflags $QEMU_LDFLAGS"
6643
6644 config_host_mak="config-host.mak"
6645
6646 echo "# Automatically generated by configure - do not modify" >config-all-disas.mak
6647
6648 echo "# Automatically generated by configure - do not modify" > $config_host_mak
6649 echo >> $config_host_mak
6650
6651 echo all: >> $config_host_mak
6652 echo "prefix=$prefix" >> $config_host_mak
6653 echo "bindir=$bindir" >> $config_host_mak
6654 echo "libdir=$libdir" >> $config_host_mak
6655 echo "libexecdir=$libexecdir" >> $config_host_mak
6656 echo "includedir=$includedir" >> $config_host_mak
6657 echo "sysconfdir=$sysconfdir" >> $config_host_mak
6658 echo "qemu_confdir=$qemu_confdir" >> $config_host_mak
6659 echo "qemu_datadir=$qemu_datadir" >> $config_host_mak
6660 echo "qemu_firmwarepath=$firmwarepath" >> $config_host_mak
6661 echo "qemu_moddir=$qemu_moddir" >> $config_host_mak
6662 if test "$mingw32" = "no" ; then
6663   echo "qemu_localstatedir=$local_statedir" >> $config_host_mak
6664 fi
6665 echo "qemu_helperdir=$libexecdir" >> $config_host_mak
6666 echo "qemu_localedir=$qemu_localedir" >> $config_host_mak
6667 echo "qemu_icondir=$qemu_icondir" >> $config_host_mak
6668 echo "qemu_desktopdir=$qemu_desktopdir" >> $config_host_mak
6669 echo "GIT=$git" >> $config_host_mak
6670 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
6671 echo "GIT_UPDATE=$git_update" >> $config_host_mak
6672
6673 echo "ARCH=$ARCH" >> $config_host_mak
6674
6675 if test "$default_devices" = "yes" ; then
6676   echo "CONFIG_MINIKCONF_MODE=--defconfig" >> $config_host_mak
6677 else
6678   echo "CONFIG_MINIKCONF_MODE=--allnoconfig" >> $config_host_mak
6679 fi
6680 if test "$debug_tcg" = "yes" ; then
6681   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
6682 fi
6683 if test "$strip_opt" = "yes" ; then
6684   echo "STRIP=${strip}" >> $config_host_mak
6685 fi
6686 if test "$bigendian" = "yes" ; then
6687   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
6688 fi
6689 if test "$mingw32" = "yes" ; then
6690   echo "CONFIG_WIN32=y" >> $config_host_mak
6691   rc_version=$(cat $source_path/VERSION)
6692   version_major=${rc_version%%.*}
6693   rc_version=${rc_version#*.}
6694   version_minor=${rc_version%%.*}
6695   rc_version=${rc_version#*.}
6696   version_subminor=${rc_version%%.*}
6697   version_micro=0
6698   echo "CONFIG_FILEVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
6699   echo "CONFIG_PRODUCTVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
6700   if test "$guest_agent_with_vss" = "yes" ; then
6701     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
6702     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
6703     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
6704   fi
6705   if test "$guest_agent_ntddscsi" = "yes" ; then
6706     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
6707   fi
6708   if test "$guest_agent_msi" = "yes"; then
6709     echo "QEMU_GA_MSI_ENABLED=yes" >> $config_host_mak
6710     echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
6711     echo "QEMU_GA_MSI_WITH_VSS=${QEMU_GA_MSI_WITH_VSS}" >> $config_host_mak
6712     echo "QEMU_GA_MSI_ARCH=${QEMU_GA_MSI_ARCH}" >> $config_host_mak
6713     echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
6714     echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
6715     echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
6716   fi
6717 else
6718   echo "CONFIG_POSIX=y" >> $config_host_mak
6719 fi
6720
6721 if test "$linux" = "yes" ; then
6722   echo "CONFIG_LINUX=y" >> $config_host_mak
6723 fi
6724
6725 if test "$darwin" = "yes" ; then
6726   echo "CONFIG_DARWIN=y" >> $config_host_mak
6727 fi
6728
6729 if test "$solaris" = "yes" ; then
6730   echo "CONFIG_SOLARIS=y" >> $config_host_mak
6731 fi
6732 if test "$haiku" = "yes" ; then
6733   echo "CONFIG_HAIKU=y" >> $config_host_mak
6734 fi
6735 if test "$static" = "yes" ; then
6736   echo "CONFIG_STATIC=y" >> $config_host_mak
6737 fi
6738 if test "$profiler" = "yes" ; then
6739   echo "CONFIG_PROFILER=y" >> $config_host_mak
6740 fi
6741 if test "$want_tools" = "yes" ; then
6742   echo "CONFIG_TOOLS=y" >> $config_host_mak
6743 fi
6744 if test "$guest_agent" = "yes" ; then
6745   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
6746 fi
6747 if test "$slirp" != "no"; then
6748   echo "CONFIG_SLIRP=y" >> $config_host_mak
6749   echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
6750   echo "SLIRP_CFLAGS=$slirp_cflags" >> $config_host_mak
6751   echo "SLIRP_LIBS=$slirp_libs" >> $config_host_mak
6752 fi
6753 subdirs=
6754 if [ "$slirp" = "git" -o "$slirp" = "internal" ]; then
6755   subdirs="$subdirs slirp"
6756 fi
6757 if test "$vde" = "yes" ; then
6758   echo "CONFIG_VDE=y" >> $config_host_mak
6759   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
6760 fi
6761 if test "$netmap" = "yes" ; then
6762   echo "CONFIG_NETMAP=y" >> $config_host_mak
6763 fi
6764 if test "$l2tpv3" = "yes" ; then
6765   echo "CONFIG_L2TPV3=y" >> $config_host_mak
6766 fi
6767 if test "$gprof" = "yes" ; then
6768   echo "CONFIG_GPROF=y" >> $config_host_mak
6769 fi
6770 if test "$cap_ng" = "yes" ; then
6771   echo "CONFIG_LIBCAP_NG=y" >> $config_host_mak
6772   echo "LIBCAP_NG_LIBS=$cap_libs" >> $config_host_mak
6773 fi
6774 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
6775 for drv in $audio_drv_list; do
6776     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
6777     echo "$def=y" >> $config_host_mak
6778 done
6779 if test "$alsa" = "yes" ; then
6780     echo "CONFIG_ALSA=y" >> $config_host_mak
6781 fi
6782 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
6783 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
6784 if test "$libpulse" = "yes" ; then
6785     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
6786 fi
6787 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
6788 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
6789 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
6790 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
6791 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
6792 if test "$libjack" = "yes" ; then
6793     echo "CONFIG_LIBJACK=y" >> $config_host_mak
6794 fi
6795 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
6796 if test "$audio_win_int" = "yes" ; then
6797   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
6798 fi
6799 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
6800 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
6801 if test "$xfs" = "yes" ; then
6802   echo "CONFIG_XFS=y" >> $config_host_mak
6803 fi
6804 qemu_version=$(head $source_path/VERSION)
6805 echo "PKGVERSION=$pkgversion" >>$config_host_mak
6806 echo "SRC_PATH=$source_path" >> $config_host_mak
6807 echo "TARGET_DIRS=$target_list" >> $config_host_mak
6808 if [ "$docs" = "yes" ] ; then
6809   echo "BUILD_DOCS=yes" >> $config_host_mak
6810 fi
6811 if test "$modules" = "yes"; then
6812   # $shacmd can generate a hash started with digit, which the compiler doesn't
6813   # like as an symbol. So prefix it with an underscore
6814   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
6815   echo "CONFIG_MODULES=y" >> $config_host_mak
6816 fi
6817 if test "$module_upgrades" = "yes"; then
6818   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
6819 fi
6820 if test "$have_x11" = "yes" && test "$need_x11" = "yes"; then
6821   echo "CONFIG_X11=y" >> $config_host_mak
6822   echo "X11_CFLAGS=$x11_cflags" >> $config_host_mak
6823   echo "X11_LIBS=$x11_libs" >> $config_host_mak
6824 fi
6825 if test "$cocoa" = "yes" ; then
6826   echo "CONFIG_COCOA=y" >> $config_host_mak
6827 fi
6828 if test "$iconv" = "yes" ; then
6829   echo "CONFIG_ICONV=y" >> $config_host_mak
6830   echo "ICONV_CFLAGS=$iconv_cflags" >> $config_host_mak
6831   echo "ICONV_LIBS=$iconv_lib" >> $config_host_mak
6832 fi
6833 if test "$curses" = "yes" ; then
6834   echo "CONFIG_CURSES=y" >> $config_host_mak
6835   echo "CURSES_CFLAGS=$curses_inc" >> $config_host_mak
6836   echo "CURSES_LIBS=$curses_lib" >> $config_host_mak
6837 fi
6838 if test "$pipe2" = "yes" ; then
6839   echo "CONFIG_PIPE2=y" >> $config_host_mak
6840 fi
6841 if test "$accept4" = "yes" ; then
6842   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
6843 fi
6844 if test "$splice" = "yes" ; then
6845   echo "CONFIG_SPLICE=y" >> $config_host_mak
6846 fi
6847 if test "$eventfd" = "yes" ; then
6848   echo "CONFIG_EVENTFD=y" >> $config_host_mak
6849 fi
6850 if test "$memfd" = "yes" ; then
6851   echo "CONFIG_MEMFD=y" >> $config_host_mak
6852 fi
6853 if test "$have_usbfs" = "yes" ; then
6854   echo "CONFIG_USBFS=y" >> $config_host_mak
6855 fi
6856 if test "$fallocate" = "yes" ; then
6857   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
6858 fi
6859 if test "$fallocate_punch_hole" = "yes" ; then
6860   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
6861 fi
6862 if test "$fallocate_zero_range" = "yes" ; then
6863   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
6864 fi
6865 if test "$posix_fallocate" = "yes" ; then
6866   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
6867 fi
6868 if test "$sync_file_range" = "yes" ; then
6869   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
6870 fi
6871 if test "$fiemap" = "yes" ; then
6872   echo "CONFIG_FIEMAP=y" >> $config_host_mak
6873 fi
6874 if test "$dup3" = "yes" ; then
6875   echo "CONFIG_DUP3=y" >> $config_host_mak
6876 fi
6877 if test "$ppoll" = "yes" ; then
6878   echo "CONFIG_PPOLL=y" >> $config_host_mak
6879 fi
6880 if test "$prctl_pr_set_timerslack" = "yes" ; then
6881   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
6882 fi
6883 if test "$epoll" = "yes" ; then
6884   echo "CONFIG_EPOLL=y" >> $config_host_mak
6885 fi
6886 if test "$epoll_create1" = "yes" ; then
6887   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
6888 fi
6889 if test "$sendfile" = "yes" ; then
6890   echo "CONFIG_SENDFILE=y" >> $config_host_mak
6891 fi
6892 if test "$timerfd" = "yes" ; then
6893   echo "CONFIG_TIMERFD=y" >> $config_host_mak
6894 fi
6895 if test "$setns" = "yes" ; then
6896   echo "CONFIG_SETNS=y" >> $config_host_mak
6897 fi
6898 if test "$clock_adjtime" = "yes" ; then
6899   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
6900 fi
6901 if test "$syncfs" = "yes" ; then
6902   echo "CONFIG_SYNCFS=y" >> $config_host_mak
6903 fi
6904 if test "$kcov" = "yes" ; then
6905   echo "CONFIG_KCOV=y" >> $config_host_mak
6906 fi
6907 if test "$btrfs" = "yes" ; then
6908   echo "CONFIG_BTRFS=y" >> $config_host_mak
6909 fi
6910 if test "$inotify" = "yes" ; then
6911   echo "CONFIG_INOTIFY=y" >> $config_host_mak
6912 fi
6913 if test "$inotify1" = "yes" ; then
6914   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
6915 fi
6916 if test "$sem_timedwait" = "yes" ; then
6917   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
6918 fi
6919 if test "$strchrnul" = "yes" ; then
6920   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
6921 fi
6922 if test "$st_atim" = "yes" ; then
6923   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
6924 fi
6925 if test "$byteswap_h" = "yes" ; then
6926   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
6927 fi
6928 if test "$bswap_h" = "yes" ; then
6929   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
6930 fi
6931 if test "$curl" = "yes" ; then
6932   echo "CONFIG_CURL=y" >> $config_host_mak
6933   echo "CURL_CFLAGS=$curl_cflags" >> $config_host_mak
6934   echo "CURL_LIBS=$curl_libs" >> $config_host_mak
6935 fi
6936 if test "$brlapi" = "yes" ; then
6937   echo "CONFIG_BRLAPI=y" >> $config_host_mak
6938   echo "BRLAPI_LIBS=$brlapi_libs" >> $config_host_mak
6939 fi
6940 if test "$gtk" = "yes" ; then
6941   echo "CONFIG_GTK=y" >> $config_host_mak
6942   echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
6943   echo "GTK_LIBS=$gtk_libs" >> $config_host_mak
6944   if test "$gtk_gl" = "yes" ; then
6945     echo "CONFIG_GTK_GL=y" >> $config_host_mak
6946   fi
6947 fi
6948 if test "$gio" = "yes" ; then
6949     echo "CONFIG_GIO=y" >> $config_host_mak
6950     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
6951     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
6952     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
6953 fi
6954 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
6955 if test "$gnutls" = "yes" ; then
6956   echo "CONFIG_GNUTLS=y" >> $config_host_mak
6957   echo "GNUTLS_CFLAGS=$gnutls_cflags" >> $config_host_mak
6958   echo "GNUTLS_LIBS=$gnutls_libs" >> $config_host_mak
6959 fi
6960 if test "$gcrypt" = "yes" ; then
6961   echo "CONFIG_GCRYPT=y" >> $config_host_mak
6962   if test "$gcrypt_hmac" = "yes" ; then
6963     echo "CONFIG_GCRYPT_HMAC=y" >> $config_host_mak
6964   fi
6965 fi
6966 if test "$nettle" = "yes" ; then
6967   echo "CONFIG_NETTLE=y" >> $config_host_mak
6968   echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
6969   echo "NETTLE_CFLAGS=$nettle_cflags" >> $config_host_mak
6970   echo "NETTLE_LIBS=$nettle_libs" >> $config_host_mak
6971 fi
6972 if test "$qemu_private_xts" = "yes" ; then
6973   echo "CONFIG_QEMU_PRIVATE_XTS=y" >> $config_host_mak
6974 fi
6975 if test "$tasn1" = "yes" ; then
6976   echo "CONFIG_TASN1=y" >> $config_host_mak
6977 fi
6978 if test "$auth_pam" = "yes" ; then
6979     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
6980 fi
6981 if test "$have_ifaddrs_h" = "yes" ; then
6982     echo "HAVE_IFADDRS_H=y" >> $config_host_mak
6983 fi
6984 if test "$have_drm_h" = "yes" ; then
6985   echo "HAVE_DRM_H=y" >> $config_host_mak
6986 fi
6987 if test "$have_broken_size_max" = "yes" ; then
6988     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
6989 fi
6990 if test "$have_openpty" = "yes" ; then
6991     echo "HAVE_OPENPTY=y" >> $config_host_mak
6992 fi
6993 if test "$have_sys_signal_h" = "yes" ; then
6994     echo "HAVE_SYS_SIGNAL_H=y" >> $config_host_mak
6995 fi
6996
6997 # Work around a system header bug with some kernel/XFS header
6998 # versions where they both try to define 'struct fsxattr':
6999 # xfs headers will not try to redefine structs from linux headers
7000 # if this macro is set.
7001 if test "$have_fsxattr" = "yes" ; then
7002     echo "HAVE_FSXATTR=y" >> $config_host_mak
7003 fi
7004 if test "$have_copy_file_range" = "yes" ; then
7005     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
7006 fi
7007 if test "$vte" = "yes" ; then
7008   echo "CONFIG_VTE=y" >> $config_host_mak
7009   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
7010   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
7011 fi
7012 if test "$virglrenderer" = "yes" ; then
7013   echo "CONFIG_VIRGL=y" >> $config_host_mak
7014   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
7015   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
7016 fi
7017 if test "$xen" = "yes" ; then
7018   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
7019   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
7020   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
7021   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
7022 fi
7023 if test "$linux_aio" = "yes" ; then
7024   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
7025 fi
7026 if test "$linux_io_uring" = "yes" ; then
7027   echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
7028   echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
7029   echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
7030 fi
7031 if test "$attr" = "yes" ; then
7032   echo "CONFIG_ATTR=y" >> $config_host_mak
7033   echo "LIBATTR_LIBS=$libattr_libs" >> $config_host_mak
7034 fi
7035 if test "$libattr" = "yes" ; then
7036   echo "CONFIG_LIBATTR=y" >> $config_host_mak
7037 fi
7038 if test "$virtfs" = "yes" ; then
7039   echo "CONFIG_VIRTFS=y" >> $config_host_mak
7040 fi
7041 if test "$mpath" = "yes" ; then
7042   echo "CONFIG_MPATH=y" >> $config_host_mak
7043   if test "$mpathpersist_new_api" = "yes"; then
7044     echo "CONFIG_MPATH_NEW_API=y" >> $config_host_mak
7045   fi
7046 fi
7047 if test "$vhost_scsi" = "yes" ; then
7048   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
7049 fi
7050 if test "$vhost_net" = "yes" ; then
7051   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
7052 fi
7053 if test "$vhost_net_user" = "yes" ; then
7054   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
7055 fi
7056 if test "$vhost_net_vdpa" = "yes" ; then
7057   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
7058 fi
7059 if test "$vhost_crypto" = "yes" ; then
7060   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
7061 fi
7062 if test "$vhost_vsock" = "yes" ; then
7063   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
7064   if test "$vhost_user" = "yes" ; then
7065     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
7066   fi
7067 fi
7068 if test "$vhost_kernel" = "yes" ; then
7069   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
7070 fi
7071 if test "$vhost_user" = "yes" ; then
7072   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
7073 fi
7074 if test "$vhost_vdpa" = "yes" ; then
7075   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
7076 fi
7077 if test "$vhost_user_fs" = "yes" ; then
7078   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
7079 fi
7080 if test "$blobs" = "yes" ; then
7081   echo "INSTALL_BLOBS=yes" >> $config_host_mak
7082 fi
7083 if test "$iovec" = "yes" ; then
7084   echo "CONFIG_IOVEC=y" >> $config_host_mak
7085 fi
7086 if test "$preadv" = "yes" ; then
7087   echo "CONFIG_PREADV=y" >> $config_host_mak
7088 fi
7089 if test "$fdt" != "no" ; then
7090   echo "CONFIG_FDT=y" >> $config_host_mak
7091   echo "FDT_CFLAGS=$fdt_cflags" >> $config_host_mak
7092   echo "FDT_LIBS=$fdt_ldflags $fdt_libs" >> $config_host_mak
7093 fi
7094 if test "$membarrier" = "yes" ; then
7095   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
7096 fi
7097 if test "$signalfd" = "yes" ; then
7098   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
7099 fi
7100 if test "$optreset" = "yes" ; then
7101   echo "HAVE_OPTRESET=y" >> $config_host_mak
7102 fi
7103 if test "$tcg" = "yes"; then
7104   echo "CONFIG_TCG=y" >> $config_host_mak
7105   if test "$tcg_interpreter" = "yes" ; then
7106     echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
7107   fi
7108 fi
7109 if test "$fdatasync" = "yes" ; then
7110   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
7111 fi
7112 if test "$madvise" = "yes" ; then
7113   echo "CONFIG_MADVISE=y" >> $config_host_mak
7114 fi
7115 if test "$posix_madvise" = "yes" ; then
7116   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
7117 fi
7118 if test "$posix_memalign" = "yes" ; then
7119   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
7120 fi
7121 if test "$spice" = "yes" ; then
7122   echo "CONFIG_SPICE=y" >> $config_host_mak
7123   echo "SPICE_CFLAGS=$spice_cflags" >> $config_host_mak
7124   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
7125 fi
7126
7127 if test "$smartcard" = "yes" ; then
7128   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
7129   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
7130   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
7131 fi
7132
7133 if test "$libusb" = "yes" ; then
7134   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
7135   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
7136   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
7137 fi
7138
7139 if test "$usb_redir" = "yes" ; then
7140   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
7141   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
7142   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
7143 fi
7144
7145 if test "$opengl" = "yes" ; then
7146   echo "CONFIG_OPENGL=y" >> $config_host_mak
7147   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
7148   if test "$opengl_dmabuf" = "yes" ; then
7149     echo "CONFIG_OPENGL_DMABUF=y" >> $config_host_mak
7150   fi
7151 fi
7152
7153 if test "$gbm" = "yes" ; then
7154     echo "CONFIG_GBM=y" >> $config_host_mak
7155     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
7156     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
7157 fi
7158
7159
7160 if test "$malloc_trim" = "yes" ; then
7161   echo "CONFIG_MALLOC_TRIM=y" >> $config_host_mak
7162 fi
7163
7164 if test "$avx2_opt" = "yes" ; then
7165   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
7166 fi
7167
7168 if test "$avx512f_opt" = "yes" ; then
7169   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
7170 fi
7171
7172 if test "$lzo" = "yes" ; then
7173   echo "CONFIG_LZO=y" >> $config_host_mak
7174   echo "LZO_LIBS=$lzo_libs" >> $config_host_mak
7175 fi
7176
7177 if test "$snappy" = "yes" ; then
7178   echo "CONFIG_SNAPPY=y" >> $config_host_mak
7179   echo "SNAPPY_LIBS=$snappy_libs" >> $config_host_mak
7180 fi
7181
7182 if test "$bzip2" = "yes" ; then
7183   echo "CONFIG_BZIP2=y" >> $config_host_mak
7184   echo "BZIP2_LIBS=-lbz2" >> $config_host_mak
7185 fi
7186
7187 if test "$lzfse" = "yes" ; then
7188   echo "CONFIG_LZFSE=y" >> $config_host_mak
7189   echo "LZFSE_LIBS=-llzfse" >> $config_host_mak
7190 fi
7191
7192 if test "$zstd" = "yes" ; then
7193   echo "CONFIG_ZSTD=y" >> $config_host_mak
7194   echo "ZSTD_CFLAGS=$zstd_cflags" >> $config_host_mak
7195   echo "ZSTD_LIBS=$zstd_libs" >> $config_host_mak
7196 fi
7197
7198 if test "$libiscsi" = "yes" ; then
7199   echo "CONFIG_LIBISCSI=y" >> $config_host_mak
7200   echo "LIBISCSI_CFLAGS=$libiscsi_cflags" >> $config_host_mak
7201   echo "LIBISCSI_LIBS=$libiscsi_libs" >> $config_host_mak
7202 fi
7203
7204 if test "$libnfs" = "yes" ; then
7205   echo "CONFIG_LIBNFS=y" >> $config_host_mak
7206   echo "LIBNFS_LIBS=$libnfs_libs" >> $config_host_mak
7207 fi
7208
7209 if test "$seccomp" = "yes"; then
7210   echo "CONFIG_SECCOMP=y" >> $config_host_mak
7211   echo "SECCOMP_CFLAGS=$seccomp_cflags" >> $config_host_mak
7212   echo "SECCOMP_LIBS=$seccomp_libs" >> $config_host_mak
7213 fi
7214
7215 # XXX: suppress that
7216 if [ "$bsd" = "yes" ] ; then
7217   echo "CONFIG_BSD=y" >> $config_host_mak
7218 fi
7219
7220 if test "$localtime_r" = "yes" ; then
7221   echo "CONFIG_LOCALTIME_R=y" >> $config_host_mak
7222 fi
7223 if test "$qom_cast_debug" = "yes" ; then
7224   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
7225 fi
7226 if test "$rbd" = "yes" ; then
7227   echo "CONFIG_RBD=y" >> $config_host_mak
7228   echo "RBD_LIBS=$rbd_libs" >> $config_host_mak
7229 fi
7230
7231 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
7232 if test "$coroutine_pool" = "yes" ; then
7233   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
7234 else
7235   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
7236 fi
7237
7238 if test "$debug_stack_usage" = "yes" ; then
7239   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
7240 fi
7241
7242 if test "$crypto_afalg" = "yes" ; then
7243   echo "CONFIG_AF_ALG=y" >> $config_host_mak
7244 fi
7245
7246 if test "$open_by_handle_at" = "yes" ; then
7247   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
7248 fi
7249
7250 if test "$linux_magic_h" = "yes" ; then
7251   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
7252 fi
7253
7254 if test "$valgrind_h" = "yes" ; then
7255   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
7256 fi
7257
7258 if test "$have_asan_iface_fiber" = "yes" ; then
7259     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
7260 fi
7261
7262 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
7263     echo "CONFIG_TSAN=y" >> $config_host_mak
7264 fi
7265
7266 if test "$has_environ" = "yes" ; then
7267   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
7268 fi
7269
7270 if test "$cpuid_h" = "yes" ; then
7271   echo "CONFIG_CPUID_H=y" >> $config_host_mak
7272 fi
7273
7274 if test "$int128" = "yes" ; then
7275   echo "CONFIG_INT128=y" >> $config_host_mak
7276 fi
7277
7278 if test "$atomic128" = "yes" ; then
7279   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
7280 fi
7281
7282 if test "$cmpxchg128" = "yes" ; then
7283   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
7284 fi
7285
7286 if test "$atomic64" = "yes" ; then
7287   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
7288 fi
7289
7290 if test "$attralias" = "yes" ; then
7291   echo "CONFIG_ATTRIBUTE_ALIAS=y" >> $config_host_mak
7292 fi
7293
7294 if test "$getauxval" = "yes" ; then
7295   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
7296 fi
7297
7298 if test "$glusterfs" = "yes" ; then
7299   echo "CONFIG_GLUSTERFS=y" >> $config_host_mak
7300   echo "GLUSTERFS_CFLAGS=$glusterfs_cflags" >> $config_host_mak
7301   echo "GLUSTERFS_LIBS=$glusterfs_libs" >> $config_host_mak
7302 fi
7303
7304 if test "$glusterfs_xlator_opt" = "yes" ; then
7305   echo "CONFIG_GLUSTERFS_XLATOR_OPT=y" >> $config_host_mak
7306 fi
7307
7308 if test "$glusterfs_discard" = "yes" ; then
7309   echo "CONFIG_GLUSTERFS_DISCARD=y" >> $config_host_mak
7310 fi
7311
7312 if test "$glusterfs_fallocate" = "yes" ; then
7313   echo "CONFIG_GLUSTERFS_FALLOCATE=y" >> $config_host_mak
7314 fi
7315
7316 if test "$glusterfs_zerofill" = "yes" ; then
7317   echo "CONFIG_GLUSTERFS_ZEROFILL=y" >> $config_host_mak
7318 fi
7319
7320 if test "$glusterfs_ftruncate_has_stat" = "yes" ; then
7321   echo "CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT=y" >> $config_host_mak
7322 fi
7323
7324 if test "$glusterfs_iocb_has_stat" = "yes" ; then
7325   echo "CONFIG_GLUSTERFS_IOCB_HAS_STAT=y" >> $config_host_mak
7326 fi
7327
7328 if test "$libssh" = "yes" ; then
7329   echo "CONFIG_LIBSSH=y" >> $config_host_mak
7330   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
7331   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
7332 fi
7333
7334 if test "$live_block_migration" = "yes" ; then
7335   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
7336 fi
7337
7338 if test "$tpm" = "yes"; then
7339   echo 'CONFIG_TPM=y' >> $config_host_mak
7340 fi
7341
7342 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
7343 if have_backend "nop"; then
7344   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
7345 fi
7346 if have_backend "simple"; then
7347   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
7348   # Set the appropriate trace file.
7349   trace_file="\"$trace_file-\" FMT_pid"
7350 fi
7351 if have_backend "log"; then
7352   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
7353 fi
7354 if have_backend "ust"; then
7355   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
7356   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
7357   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
7358 fi
7359 if have_backend "dtrace"; then
7360   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
7361   if test "$trace_backend_stap" = "yes" ; then
7362     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
7363   fi
7364 fi
7365 if have_backend "ftrace"; then
7366   if test "$linux" = "yes" ; then
7367     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
7368   else
7369     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
7370   fi
7371 fi
7372 if have_backend "syslog"; then
7373   if test "$posix_syslog" = "yes" ; then
7374     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
7375   else
7376     feature_not_found "syslog(trace backend)" "syslog not available"
7377   fi
7378 fi
7379 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
7380
7381 if test "$rdma" = "yes" ; then
7382   echo "CONFIG_RDMA=y" >> $config_host_mak
7383   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
7384 fi
7385
7386 if test "$pvrdma" = "yes" ; then
7387   echo "CONFIG_PVRDMA=y" >> $config_host_mak
7388 fi
7389
7390 if test "$have_rtnetlink" = "yes" ; then
7391   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
7392 fi
7393
7394 if test "$libxml2" = "yes" ; then
7395   echo "CONFIG_LIBXML2=y" >> $config_host_mak
7396   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
7397   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
7398 fi
7399
7400 if test "$replication" = "yes" ; then
7401   echo "CONFIG_REPLICATION=y" >> $config_host_mak
7402 fi
7403
7404 if test "$have_af_vsock" = "yes" ; then
7405   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
7406 fi
7407
7408 if test "$have_sysmacros" = "yes" ; then
7409   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
7410 fi
7411
7412 if test "$have_static_assert" = "yes" ; then
7413   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
7414 fi
7415
7416 if test "$have_utmpx" = "yes" ; then
7417   echo "HAVE_UTMPX=y" >> $config_host_mak
7418 fi
7419 if test "$have_getrandom" = "yes" ; then
7420   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
7421 fi
7422 if test "$ivshmem" = "yes" ; then
7423   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
7424 fi
7425 if test "$capstone" != "no" ; then
7426   echo "CONFIG_CAPSTONE=y" >> $config_host_mak
7427   echo "CAPSTONE_CFLAGS=$capstone_cflags" >> $config_host_mak
7428   echo "CAPSTONE_LIBS=$capstone_libs" >> $config_host_mak
7429 fi
7430 if test "$debug_mutex" = "yes" ; then
7431   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
7432 fi
7433
7434 # Hold two types of flag:
7435 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
7436 #                                     a thread we have a handle to
7437 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
7438 #                                     platform
7439 if test "$pthread_setname_np_w_tid" = "yes" ; then
7440   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
7441   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
7442 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
7443   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
7444   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
7445 fi
7446
7447 if test "$libpmem" = "yes" ; then
7448   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
7449   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
7450   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
7451 fi
7452
7453 if test "$libdaxctl" = "yes" ; then
7454   echo "CONFIG_LIBDAXCTL=y" >> $config_host_mak
7455   echo "LIBDAXCTL_LIBS=$libdaxctl_libs" >> $config_host_mak
7456 fi
7457
7458 if test "$bochs" = "yes" ; then
7459   echo "CONFIG_BOCHS=y" >> $config_host_mak
7460 fi
7461 if test "$cloop" = "yes" ; then
7462   echo "CONFIG_CLOOP=y" >> $config_host_mak
7463 fi
7464 if test "$dmg" = "yes" ; then
7465   echo "CONFIG_DMG=y" >> $config_host_mak
7466 fi
7467 if test "$qcow1" = "yes" ; then
7468   echo "CONFIG_QCOW1=y" >> $config_host_mak
7469 fi
7470 if test "$vdi" = "yes" ; then
7471   echo "CONFIG_VDI=y" >> $config_host_mak
7472 fi
7473 if test "$vvfat" = "yes" ; then
7474   echo "CONFIG_VVFAT=y" >> $config_host_mak
7475 fi
7476 if test "$qed" = "yes" ; then
7477   echo "CONFIG_QED=y" >> $config_host_mak
7478 fi
7479 if test "$parallels" = "yes" ; then
7480   echo "CONFIG_PARALLELS=y" >> $config_host_mak
7481 fi
7482 if test "$sheepdog" = "yes" ; then
7483   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
7484 fi
7485 if test "$pty_h" = "yes" ; then
7486   echo "HAVE_PTY_H=y" >> $config_host_mak
7487 fi
7488 if test "$have_mlockall" = "yes" ; then
7489   echo "HAVE_MLOCKALL=y" >> $config_host_mak
7490 fi
7491 if test "$fuzzing" = "yes" ; then
7492   QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
7493 fi
7494
7495 if test "$plugins" = "yes" ; then
7496     echo "CONFIG_PLUGIN=y" >> $config_host_mak
7497     LIBS="-ldl $LIBS"
7498     # Copy the export object list to the build dir
7499     if test "$ld_dynamic_list" = "yes" ; then
7500         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
7501         ld_symbols=qemu-plugins-ld.symbols
7502         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
7503     elif test "$ld_exported_symbols_list" = "yes" ; then
7504         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
7505         ld64_symbols=qemu-plugins-ld64.symbols
7506         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
7507         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
7508             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
7509     else
7510         error_exit \
7511             "If \$plugins=yes, either \$ld_dynamic_list or " \
7512             "\$ld_exported_symbols_list should have been set to 'yes'."
7513     fi
7514 fi
7515
7516 if test -n "$gdb_bin" ; then
7517     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
7518 fi
7519
7520 if test "$secret_keyring" = "yes" ; then
7521   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
7522   if test "$have_keyutils" = "yes" ; then
7523     echo "CONFIG_TEST_SECRET_KEYRING=y" >> $config_host_mak
7524   fi
7525 fi
7526
7527 if test "$tcg_interpreter" = "yes"; then
7528   QEMU_INCLUDES="-iquote ${source_path}/tcg/tci $QEMU_INCLUDES"
7529 elif test "$ARCH" = "sparc64" ; then
7530   QEMU_INCLUDES="-iquote ${source_path}/tcg/sparc $QEMU_INCLUDES"
7531 elif test "$ARCH" = "s390x" ; then
7532   QEMU_INCLUDES="-iquote ${source_path}/tcg/s390 $QEMU_INCLUDES"
7533 elif test "$ARCH" = "x86_64" || test "$ARCH" = "x32" ; then
7534   QEMU_INCLUDES="-iquote ${source_path}/tcg/i386 $QEMU_INCLUDES"
7535 elif test "$ARCH" = "ppc64" ; then
7536   QEMU_INCLUDES="-iquote ${source_path}/tcg/ppc $QEMU_INCLUDES"
7537 elif test "$ARCH" = "riscv32" || test "$ARCH" = "riscv64" ; then
7538   QEMU_INCLUDES="-I${source_path}/tcg/riscv $QEMU_INCLUDES"
7539 else
7540   QEMU_INCLUDES="-iquote ${source_path}/tcg/${ARCH} $QEMU_INCLUDES"
7541 fi
7542
7543 echo "ROMS=$roms" >> $config_host_mak
7544 echo "MAKE=$make" >> $config_host_mak
7545 echo "INSTALL=$install" >> $config_host_mak
7546 echo "INSTALL_DIR=$install -d -m 0755" >> $config_host_mak
7547 echo "INSTALL_DATA=$install -c -m 0644" >> $config_host_mak
7548 echo "INSTALL_PROG=$install -c -m 0755" >> $config_host_mak
7549 echo "INSTALL_LIB=$install -c -m 0644" >> $config_host_mak
7550 echo "PYTHON=$python" >> $config_host_mak
7551 echo "SPHINX_BUILD=$sphinx_build" >> $config_host_mak
7552 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
7553 echo "MESON=$meson" >> $config_host_mak
7554 echo "CC=$cc" >> $config_host_mak
7555 if $iasl -h > /dev/null 2>&1; then
7556   echo "CONFIG_IASL=$iasl" >> $config_host_mak
7557 fi
7558 echo "CXX=$cxx" >> $config_host_mak
7559 echo "OBJCC=$objcc" >> $config_host_mak
7560 echo "AR=$ar" >> $config_host_mak
7561 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
7562 echo "AS=$as" >> $config_host_mak
7563 echo "CCAS=$ccas" >> $config_host_mak
7564 echo "CPP=$cpp" >> $config_host_mak
7565 echo "OBJCOPY=$objcopy" >> $config_host_mak
7566 echo "LD=$ld" >> $config_host_mak
7567 echo "RANLIB=$ranlib" >> $config_host_mak
7568 echo "NM=$nm" >> $config_host_mak
7569 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
7570 echo "WINDRES=$windres" >> $config_host_mak
7571 echo "CFLAGS=$CFLAGS" >> $config_host_mak
7572 echo "CXXFLAGS=$CXXFLAGS" >> $config_host_mak
7573 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
7574 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
7575 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
7576 echo "QEMU_INCLUDES=$QEMU_INCLUDES" >> $config_host_mak
7577 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
7578 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
7579 if test "$sparse" = "yes" ; then
7580   echo "SPARSE_CFLAGS = -Wbitwise -Wno-transparent-union -Wno-old-initializer -Wno-non-pointer-null" >> $config_host_mak
7581 fi
7582 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
7583 echo "LDFLAGS_NOPIE=$LDFLAGS_NOPIE" >> $config_host_mak
7584 echo "LD_REL_FLAGS=$LD_REL_FLAGS" >> $config_host_mak
7585 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
7586 echo "LIBS+=$LIBS" >> $config_host_mak
7587 echo "LIBS_TOOLS+=$libs_tools" >> $config_host_mak
7588 echo "PTHREAD_LIB=$PTHREAD_LIB" >> $config_host_mak
7589 echo "EXESUF=$EXESUF" >> $config_host_mak
7590 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
7591 echo "LDFLAGS_SHARED=$LDFLAGS_SHARED" >> $config_host_mak
7592 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
7593 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
7594 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
7595 echo "POD2MAN=$POD2MAN" >> $config_host_mak
7596 if test "$gcov" = "yes" ; then
7597   echo "CONFIG_GCOV=y" >> $config_host_mak
7598 fi
7599
7600 if test "$libudev" != "no"; then
7601     echo "CONFIG_LIBUDEV=y" >> $config_host_mak
7602     echo "LIBUDEV_LIBS=$libudev_libs" >> $config_host_mak
7603 fi
7604 if test "$fuzzing" != "no"; then
7605     echo "CONFIG_FUZZ=y" >> $config_host_mak
7606 fi
7607
7608 if test "$edk2_blobs" = "yes" ; then
7609   echo "DECOMPRESS_EDK2_BLOBS=y" >> $config_host_mak
7610 fi
7611
7612 if test "$rng_none" = "yes"; then
7613   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
7614 fi
7615
7616 # use included Linux headers
7617 if test "$linux" = "yes" ; then
7618   mkdir -p linux-headers
7619   case "$cpu" in
7620   i386|x86_64|x32)
7621     linux_arch=x86
7622     ;;
7623   ppc|ppc64|ppc64le)
7624     linux_arch=powerpc
7625     ;;
7626   s390x)
7627     linux_arch=s390
7628     ;;
7629   aarch64)
7630     linux_arch=arm64
7631     ;;
7632   mips64)
7633     linux_arch=mips
7634     ;;
7635   *)
7636     # For most CPUs the kernel architecture name and QEMU CPU name match.
7637     linux_arch="$cpu"
7638     ;;
7639   esac
7640     # For non-KVM architectures we will not have asm headers
7641     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
7642       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
7643     fi
7644 fi
7645
7646 for target in $target_list; do
7647 target_dir="$target"
7648 config_target_mak=$target_dir/config-target.mak
7649 target_name=$(echo $target | cut -d '-' -f 1)
7650 target_aligned_only="no"
7651 case "$target_name" in
7652   alpha|hppa|mips64el|mips64|mipsel|mips|mipsn32|mipsn32el|sh4|sh4eb|sparc|sparc64|sparc32plus|xtensa|xtensaeb)
7653   target_aligned_only="yes"
7654   ;;
7655 esac
7656 target_bigendian="no"
7657 case "$target_name" in
7658   armeb|aarch64_be|hppa|lm32|m68k|microblaze|mips|mipsn32|mips64|moxie|or1k|ppc|ppc64|ppc64abi32|s390x|sh4eb|sparc|sparc64|sparc32plus|xtensaeb)
7659   target_bigendian="yes"
7660   ;;
7661 esac
7662 target_softmmu="no"
7663 target_user_only="no"
7664 target_linux_user="no"
7665 target_bsd_user="no"
7666 case "$target" in
7667   ${target_name}-softmmu)
7668     target_softmmu="yes"
7669     ;;
7670   ${target_name}-linux-user)
7671     target_user_only="yes"
7672     target_linux_user="yes"
7673     ;;
7674   ${target_name}-bsd-user)
7675     target_user_only="yes"
7676     target_bsd_user="yes"
7677     ;;
7678   *)
7679     error_exit "Target '$target' not recognised"
7680     exit 1
7681     ;;
7682 esac
7683
7684 mkdir -p $target_dir
7685 echo "# Automatically generated by configure - do not modify" > $config_target_mak
7686
7687 bflt="no"
7688 mttcg="no"
7689 interp_prefix1=$(echo "$interp_prefix" | sed "s/%M/$target_name/g")
7690 gdb_xml_files=""
7691
7692 TARGET_ARCH="$target_name"
7693 TARGET_BASE_ARCH=""
7694 TARGET_ABI_DIR=""
7695 TARGET_SYSTBL_ABI=""
7696 TARGET_SYSTBL=""
7697
7698 case "$target_name" in
7699   i386)
7700     mttcg="yes"
7701         gdb_xml_files="i386-32bit.xml"
7702     TARGET_SYSTBL_ABI=i386
7703     TARGET_SYSTBL=syscall_32.tbl
7704   ;;
7705   x86_64)
7706     TARGET_BASE_ARCH=i386
7707     TARGET_SYSTBL_ABI=common,64
7708     TARGET_SYSTBL=syscall_64.tbl
7709     mttcg="yes"
7710     gdb_xml_files="i386-64bit.xml"
7711   ;;
7712   alpha)
7713     mttcg="yes"
7714     TARGET_SYSTBL_ABI=common
7715   ;;
7716   arm|armeb)
7717     TARGET_ARCH=arm
7718     TARGET_SYSTBL_ABI=common,oabi
7719     bflt="yes"
7720     mttcg="yes"
7721     gdb_xml_files="arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml arm-m-profile.xml"
7722   ;;
7723   aarch64|aarch64_be)
7724     TARGET_ARCH=aarch64
7725     TARGET_BASE_ARCH=arm
7726     bflt="yes"
7727     mttcg="yes"
7728     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"
7729   ;;
7730   avr)
7731     gdb_xml_files="avr-cpu.xml"
7732     target_compiler=$cross_cc_avr
7733   ;;
7734   cris)
7735   ;;
7736   hppa)
7737     mttcg="yes"
7738     TARGET_SYSTBL_ABI=common,32
7739   ;;
7740   lm32)
7741   ;;
7742   m68k)
7743     bflt="yes"
7744     gdb_xml_files="cf-core.xml cf-fp.xml m68k-core.xml m68k-fp.xml"
7745     TARGET_SYSTBL_ABI=common
7746   ;;
7747   microblaze|microblazeel)
7748     TARGET_ARCH=microblaze
7749     TARGET_SYSTBL_ABI=common
7750     mttcg="yes"
7751     bflt="yes"
7752     echo "TARGET_ABI32=y" >> $config_target_mak
7753   ;;
7754   mips|mipsel)
7755     mttcg="yes"
7756     TARGET_ARCH=mips
7757     echo "TARGET_ABI_MIPSO32=y" >> $config_target_mak
7758     TARGET_SYSTBL_ABI=o32
7759     TARGET_SYSTBL=syscall_o32.tbl
7760   ;;
7761   mipsn32|mipsn32el)
7762     mttcg="yes"
7763     TARGET_ARCH=mips64
7764     TARGET_BASE_ARCH=mips
7765     echo "TARGET_ABI_MIPSN32=y" >> $config_target_mak
7766     echo "TARGET_ABI32=y" >> $config_target_mak
7767     TARGET_SYSTBL_ABI=n32
7768     TARGET_SYSTBL=syscall_n32.tbl
7769   ;;
7770   mips64|mips64el)
7771     mttcg="no"
7772     TARGET_ARCH=mips64
7773     TARGET_BASE_ARCH=mips
7774     echo "TARGET_ABI_MIPSN64=y" >> $config_target_mak
7775     TARGET_SYSTBL_ABI=n64
7776     TARGET_SYSTBL=syscall_n64.tbl
7777   ;;
7778   moxie)
7779   ;;
7780   nios2)
7781   ;;
7782   or1k)
7783     TARGET_ARCH=openrisc
7784     TARGET_BASE_ARCH=openrisc
7785   ;;
7786   ppc)
7787     gdb_xml_files="power-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
7788     TARGET_SYSTBL_ABI=common,nospu,32
7789   ;;
7790   ppc64)
7791     TARGET_BASE_ARCH=ppc
7792     TARGET_ABI_DIR=ppc
7793     TARGET_SYSTBL_ABI=common,nospu,64
7794     mttcg=yes
7795     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7796   ;;
7797   ppc64le)
7798     TARGET_ARCH=ppc64
7799     TARGET_BASE_ARCH=ppc
7800     TARGET_ABI_DIR=ppc
7801     TARGET_SYSTBL_ABI=common,nospu,64
7802     mttcg=yes
7803     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7804   ;;
7805   ppc64abi32)
7806     TARGET_ARCH=ppc64
7807     TARGET_BASE_ARCH=ppc
7808     TARGET_ABI_DIR=ppc
7809     TARGET_SYSTBL_ABI=common,nospu,32
7810     echo "TARGET_ABI32=y" >> $config_target_mak
7811     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7812   ;;
7813   riscv32)
7814     TARGET_BASE_ARCH=riscv
7815     TARGET_ABI_DIR=riscv
7816     mttcg=yes
7817     gdb_xml_files="riscv-32bit-cpu.xml riscv-32bit-fpu.xml riscv-64bit-fpu.xml riscv-32bit-csr.xml riscv-32bit-virtual.xml"
7818   ;;
7819   riscv64)
7820     TARGET_BASE_ARCH=riscv
7821     TARGET_ABI_DIR=riscv
7822     mttcg=yes
7823     gdb_xml_files="riscv-64bit-cpu.xml riscv-32bit-fpu.xml riscv-64bit-fpu.xml riscv-64bit-csr.xml riscv-64bit-virtual.xml"
7824   ;;
7825   rx)
7826     TARGET_ARCH=rx
7827     bflt="yes"
7828     target_compiler=$cross_cc_rx
7829     gdb_xml_files="rx-core.xml"
7830   ;;
7831   sh4|sh4eb)
7832     TARGET_ARCH=sh4
7833     TARGET_SYSTBL_ABI=common
7834     bflt="yes"
7835   ;;
7836   sparc)
7837     TARGET_SYSTBL_ABI=common,32
7838   ;;
7839   sparc64)
7840     TARGET_BASE_ARCH=sparc
7841     TARGET_SYSTBL_ABI=common,64
7842   ;;
7843   sparc32plus)
7844     TARGET_ARCH=sparc64
7845     TARGET_BASE_ARCH=sparc
7846     TARGET_ABI_DIR=sparc
7847     TARGET_SYSTBL_ABI=common,32
7848     echo "TARGET_ABI32=y" >> $config_target_mak
7849   ;;
7850   s390x)
7851     TARGET_SYSTBL_ABI=common,64
7852     mttcg=yes
7853     gdb_xml_files="s390x-core64.xml s390-acr.xml s390-fpr.xml s390-vx.xml s390-cr.xml s390-virt.xml s390-gs.xml"
7854   ;;
7855   tilegx)
7856   ;;
7857   tricore)
7858   ;;
7859   unicore32)
7860   ;;
7861   xtensa|xtensaeb)
7862     TARGET_ARCH=xtensa
7863     TARGET_SYSTBL_ABI=common
7864     bflt="yes"
7865     mttcg="yes"
7866   ;;
7867   *)
7868     error_exit "Unsupported target CPU"
7869   ;;
7870 esac
7871 # TARGET_BASE_ARCH needs to be defined after TARGET_ARCH
7872 if [ "$TARGET_BASE_ARCH" = "" ]; then
7873   TARGET_BASE_ARCH=$TARGET_ARCH
7874 fi
7875 if [ "$TARGET_SYSTBL_ABI" != "" ] && [ "$TARGET_SYSTBL" = "" ]; then
7876   TARGET_SYSTBL=syscall.tbl
7877 fi
7878
7879 upper() {
7880     echo "$@"| LC_ALL=C tr '[a-z]' '[A-Z]'
7881 }
7882
7883 target_arch_name="$(upper $TARGET_ARCH)"
7884 echo "TARGET_$target_arch_name=y" >> $config_target_mak
7885 echo "TARGET_NAME=$target_name" >> $config_target_mak
7886 echo "TARGET_BASE_ARCH=$TARGET_BASE_ARCH" >> $config_target_mak
7887 if [ "$TARGET_ABI_DIR" = "" ]; then
7888   TARGET_ABI_DIR=$TARGET_ARCH
7889 fi
7890 echo "TARGET_ABI_DIR=$TARGET_ABI_DIR" >> $config_target_mak
7891 if [ "$HOST_VARIANT_DIR" != "" ]; then
7892     echo "HOST_VARIANT_DIR=$HOST_VARIANT_DIR" >> $config_target_mak
7893 fi
7894 if [ "$TARGET_SYSTBL_ABI" != "" ]; then
7895     echo "TARGET_SYSTBL_ABI=$TARGET_SYSTBL_ABI" >> $config_target_mak
7896     echo "TARGET_SYSTBL=$TARGET_SYSTBL" >> $config_target_mak
7897 fi
7898
7899 if supported_xen_target $target; then
7900     echo "CONFIG_XEN=y" >> $config_target_mak
7901     if test "$xen_pci_passthrough" = yes; then
7902         echo "CONFIG_XEN_PCI_PASSTHROUGH=y" >> "$config_target_mak"
7903     fi
7904 fi
7905 if supported_kvm_target $target; then
7906     echo "CONFIG_KVM=y" >> $config_target_mak
7907 fi
7908 if supported_hax_target $target; then
7909     echo "CONFIG_HAX=y" >> $config_target_mak
7910 fi
7911 if supported_hvf_target $target; then
7912     echo "CONFIG_HVF=y" >> $config_target_mak
7913 fi
7914 if supported_whpx_target $target; then
7915     echo "CONFIG_WHPX=y" >> $config_target_mak
7916 fi
7917 if test "$target_aligned_only" = "yes" ; then
7918   echo "TARGET_ALIGNED_ONLY=y" >> $config_target_mak
7919 fi
7920 if test "$target_bigendian" = "yes" ; then
7921   echo "TARGET_WORDS_BIGENDIAN=y" >> $config_target_mak
7922 fi
7923 if test "$target_softmmu" = "yes" ; then
7924   echo "CONFIG_SOFTMMU=y" >> $config_target_mak
7925   if test "$mttcg" = "yes" ; then
7926     echo "TARGET_SUPPORTS_MTTCG=y" >> $config_target_mak
7927   fi
7928 fi
7929 if test "$target_user_only" = "yes" ; then
7930   echo "CONFIG_USER_ONLY=y" >> $config_target_mak
7931   echo "CONFIG_QEMU_INTERP_PREFIX=\"$interp_prefix1\"" >> $config_target_mak
7932   symlink "../qemu-$target_name" "$target_dir/qemu-$target_name"
7933 else
7934   symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name"
7935 fi
7936 if test "$target_linux_user" = "yes" ; then
7937   echo "CONFIG_LINUX_USER=y" >> $config_target_mak
7938 fi
7939 list=""
7940 if test ! -z "$gdb_xml_files" ; then
7941   for x in $gdb_xml_files; do
7942     list="$list gdb-xml/$x"
7943   done
7944   echo "TARGET_XML_FILES=$list" >> $config_target_mak
7945 fi
7946
7947 if test "$target_user_only" = "yes" && test "$bflt" = "yes"; then
7948   echo "TARGET_HAS_BFLT=y" >> $config_target_mak
7949 fi
7950 if test "$target_bsd_user" = "yes" ; then
7951   echo "CONFIG_BSD_USER=y" >> $config_target_mak
7952 fi
7953
7954
7955 # generate QEMU_CFLAGS/QEMU_LDFLAGS for targets
7956
7957 disas_config() {
7958   echo "CONFIG_${1}_DIS=y" >> $config_target_mak
7959   echo "CONFIG_${1}_DIS=y" >> config-all-disas.mak
7960 }
7961
7962 for i in $ARCH $TARGET_BASE_ARCH ; do
7963   case "$i" in
7964   alpha)
7965     disas_config "ALPHA"
7966   ;;
7967   aarch64)
7968     if test -n "${cxx}"; then
7969       disas_config "ARM_A64"
7970     fi
7971   ;;
7972   arm)
7973     disas_config "ARM"
7974     if test -n "${cxx}"; then
7975       disas_config "ARM_A64"
7976     fi
7977   ;;
7978   avr)
7979     disas_config "AVR"
7980   ;;
7981   cris)
7982     disas_config "CRIS"
7983   ;;
7984   hppa)
7985     disas_config "HPPA"
7986   ;;
7987   i386|x86_64|x32)
7988     disas_config "I386"
7989   ;;
7990   lm32)
7991     disas_config "LM32"
7992   ;;
7993   m68k)
7994     disas_config "M68K"
7995   ;;
7996   microblaze*)
7997     disas_config "MICROBLAZE"
7998   ;;
7999   mips*)
8000     disas_config "MIPS"
8001     if test -n "${cxx}"; then
8002       disas_config "NANOMIPS"
8003     fi
8004   ;;
8005   moxie*)
8006     disas_config "MOXIE"
8007   ;;
8008   nios2)
8009     disas_config "NIOS2"
8010   ;;
8011   or1k)
8012     disas_config "OPENRISC"
8013   ;;
8014   ppc*)
8015     disas_config "PPC"
8016   ;;
8017   riscv*)
8018     disas_config "RISCV"
8019   ;;
8020   rx)
8021     disas_config "RX"
8022   ;;
8023   s390*)
8024     disas_config "S390"
8025   ;;
8026   sh4)
8027     disas_config "SH4"
8028   ;;
8029   sparc*)
8030     disas_config "SPARC"
8031   ;;
8032   xtensa*)
8033     disas_config "XTENSA"
8034   ;;
8035   esac
8036 done
8037 if test "$tcg_interpreter" = "yes" ; then
8038   disas_config "TCI"
8039 fi
8040
8041 done # for target in $targets
8042
8043 if [ "$fdt" = "git" ]; then
8044   subdirs="$subdirs dtc"
8045 fi
8046 if [ "$capstone" = "git" -o "$capstone" = "internal" ]; then
8047   subdirs="$subdirs capstone"
8048 fi
8049 echo "SUBDIRS=$subdirs" >> $config_host_mak
8050 if test -n "$LIBCAPSTONE"; then
8051   echo "LIBCAPSTONE=$LIBCAPSTONE" >> $config_host_mak
8052 fi
8053
8054 if test "$numa" = "yes"; then
8055   echo "CONFIG_NUMA=y" >> $config_host_mak
8056   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
8057 fi
8058
8059 if test "$ccache_cpp2" = "yes"; then
8060   echo "export CCACHE_CPP2=y" >> $config_host_mak
8061 fi
8062
8063 if test "$safe_stack" = "yes"; then
8064   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
8065 fi
8066
8067 # If we're using a separate build tree, set it up now.
8068 # DIRS are directories which we simply mkdir in the build tree;
8069 # LINKS are things to symlink back into the source tree
8070 # (these can be both files and directories).
8071 # Caution: do not add files or directories here using wildcards. This
8072 # will result in problems later if a new file matching the wildcard is
8073 # added to the source tree -- nothing will cause configure to be rerun
8074 # so the build tree will be missing the link back to the new file, and
8075 # tests might fail. Prefer to keep the relevant files in their own
8076 # directory and symlink the directory instead.
8077 # UNLINK is used to remove symlinks from older development versions
8078 # that might get into the way when doing "git update" without doing
8079 # a "make distclean" in between.
8080 DIRS="tests tests/tcg tests/tcg/lm32 tests/qapi-schema tests/qtest/libqos"
8081 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
8082 DIRS="$DIRS docs docs/interop fsdev scsi"
8083 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
8084 DIRS="$DIRS roms/seabios"
8085 LINKS="Makefile"
8086 LINKS="$LINKS tests/tcg/lm32/Makefile"
8087 LINKS="$LINKS tests/tcg/Makefile.target"
8088 LINKS="$LINKS pc-bios/optionrom/Makefile"
8089 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
8090 LINKS="$LINKS roms/seabios/Makefile"
8091 LINKS="$LINKS pc-bios/qemu-icon.bmp"
8092 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
8093 LINKS="$LINKS tests/acceptance tests/data"
8094 LINKS="$LINKS tests/qemu-iotests/check"
8095 LINKS="$LINKS python"
8096 UNLINK="pc-bios/keymaps"
8097 for bios_file in \
8098     $source_path/pc-bios/*.bin \
8099     $source_path/pc-bios/*.elf \
8100     $source_path/pc-bios/*.lid \
8101     $source_path/pc-bios/*.rom \
8102     $source_path/pc-bios/*.dtb \
8103     $source_path/pc-bios/*.img \
8104     $source_path/pc-bios/openbios-* \
8105     $source_path/pc-bios/u-boot.* \
8106     $source_path/pc-bios/edk2-*.fd.bz2 \
8107     $source_path/pc-bios/palcode-*
8108 do
8109     LINKS="$LINKS pc-bios/$(basename $bios_file)"
8110 done
8111 mkdir -p $DIRS
8112 for f in $LINKS ; do
8113     if [ -e "$source_path/$f" ] && [ "$pwd_is_source_path" != "y" ]; then
8114         symlink "$source_path/$f" "$f"
8115     fi
8116 done
8117 for f in $UNLINK ; do
8118     if [ -L "$f" ]; then
8119         rm -f "$f"
8120     fi
8121 done
8122
8123 (for i in $cross_cc_vars; do
8124   export $i
8125 done
8126 export target_list source_path use_containers
8127 $source_path/tests/tcg/configure.sh)
8128
8129 # temporary config to build submodules
8130 for rom in seabios; do
8131     config_mak=roms/$rom/config.mak
8132     echo "# Automatically generated by configure - do not modify" > $config_mak
8133     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
8134     echo "AS=$as" >> $config_mak
8135     echo "CCAS=$ccas" >> $config_mak
8136     echo "CC=$cc" >> $config_mak
8137     echo "BCC=bcc" >> $config_mak
8138     echo "CPP=$cpp" >> $config_mak
8139     echo "OBJCOPY=objcopy" >> $config_mak
8140     echo "IASL=$iasl" >> $config_mak
8141     echo "LD=$ld" >> $config_mak
8142     echo "RANLIB=$ranlib" >> $config_mak
8143 done
8144
8145 # set up qemu-iotests in this build directory
8146 iotests_common_env="tests/qemu-iotests/common.env"
8147
8148 echo "# Automatically generated by configure - do not modify" > "$iotests_common_env"
8149 echo >> "$iotests_common_env"
8150 echo "export PYTHON='$python'" >> "$iotests_common_env"
8151
8152 if test "$skip_meson" = no; then
8153 cross="config-meson.cross.new"
8154 meson_quote() {
8155     echo "['$(echo $* | sed "s/ /','/g")']"
8156 }
8157
8158 echo "# Automatically generated by configure - do not modify" > $cross
8159 echo "[properties]" >> $cross
8160 test -z "$cxx" && echo "link_language = 'c'" >> $cross
8161 echo "[binaries]" >> $cross
8162 echo "c = $(meson_quote $cc)" >> $cross
8163 test -n "$cxx" && echo "cpp = $(meson_quote $cxx)" >> $cross
8164 echo "ar = $(meson_quote $ar)" >> $cross
8165 echo "nm = $(meson_quote $nm)" >> $cross
8166 echo "pkgconfig = $(meson_quote $pkg_config_exe)" >> $cross
8167 echo "ranlib = $(meson_quote $ranlib)" >> $cross
8168 echo "strip = $(meson_quote $strip)" >> $cross
8169 echo "windres = $(meson_quote $windres)" >> $cross
8170 if test -n "$cross_prefix"; then
8171     cross_arg="--cross-file config-meson.cross"
8172     # Hack: Meson expects an absolute path for the *build* machine
8173     # for the prefix, so add a slash in front of a Windows path that
8174     # includes a drive letter.
8175     #
8176     # See https://github.com/mesonbuild/meson/issues/7577.
8177     echo "[host_machine]" >> $cross
8178     if test "$mingw32" = "yes" ; then
8179         echo "system = 'windows'" >> $cross
8180         case $prefix in
8181             ?:*) pre_prefix=/ ;;
8182         esac
8183     fi
8184     if test "$linux" = "yes" ; then
8185         echo "system = 'linux'" >> $cross
8186     fi
8187     case "$ARCH" in
8188         i386|x86_64)
8189             echo "cpu_family = 'x86'" >> $cross
8190             ;;
8191         ppc64le)
8192             echo "cpu_family = 'ppc64'" >> $cross
8193             ;;
8194         *)
8195             echo "cpu_family = '$ARCH'" >> $cross
8196             ;;
8197     esac
8198     echo "cpu = '$cpu'" >> $cross
8199     if test "$bigendian" = "yes" ; then
8200         echo "endian = 'big'" >> $cross
8201     else
8202         echo "endian = 'little'" >> $cross
8203     fi
8204 else
8205     cross_arg="--native-file config-meson.cross"
8206 fi
8207 mv $cross config-meson.cross
8208
8209 rm -rf meson-private meson-info meson-logs
8210 NINJA=${ninja:-$PWD/ninjatool} $meson setup \
8211         --prefix "${pre_prefix}$prefix" \
8212         --libdir "${pre_prefix}$libdir" \
8213         --libexecdir "${pre_prefix}$libexecdir" \
8214         --bindir "${pre_prefix}$bindir" \
8215         --includedir "${pre_prefix}$includedir" \
8216         --datadir "${pre_prefix}$datadir" \
8217         --mandir "${pre_prefix}$mandir" \
8218         --sysconfdir "${pre_prefix}$sysconfdir" \
8219         --localstatedir "${pre_prefix}$local_statedir" \
8220         -Ddocdir="${pre_prefix}$docdir" \
8221         -Dqemu_suffix="$qemu_suffix" \
8222         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
8223         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
8224         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
8225         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
8226         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
8227         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
8228         -Dsdl=$sdl -Dsdl_image=$sdl_image \
8229         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
8230         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f\
8231         $cross_arg \
8232         "$PWD" "$source_path"
8233
8234 if test "$?" -ne 0 ; then
8235     error_exit "meson setup failed"
8236 fi
8237 touch ninjatool.stamp
8238 fi
8239
8240 # Save the configure command line for later reuse.
8241 cat <<EOD >config.status
8242 #!/bin/sh
8243 # Generated by configure.
8244 # Run this file to recreate the current configuration.
8245 # Compiler output produced by configure, useful for debugging
8246 # configure, is in config.log if it exists.
8247 EOD
8248
8249 preserve_env() {
8250     envname=$1
8251
8252     eval envval=\$$envname
8253
8254     if test -n "$envval"
8255     then
8256         echo "$envname='$envval'" >> config.status
8257         echo "export $envname" >> config.status
8258     else
8259         echo "unset $envname" >> config.status
8260     fi
8261 }
8262
8263 # Preserve various env variables that influence what
8264 # features/build target configure will detect
8265 preserve_env AR
8266 preserve_env AS
8267 preserve_env CC
8268 preserve_env CPP
8269 preserve_env CXX
8270 preserve_env INSTALL
8271 preserve_env LD
8272 preserve_env LD_LIBRARY_PATH
8273 preserve_env LIBTOOL
8274 preserve_env MAKE
8275 preserve_env NM
8276 preserve_env OBJCOPY
8277 preserve_env PATH
8278 preserve_env PKG_CONFIG
8279 preserve_env PKG_CONFIG_LIBDIR
8280 preserve_env PKG_CONFIG_PATH
8281 preserve_env PYTHON
8282 preserve_env SDL2_CONFIG
8283 preserve_env SMBD
8284 preserve_env STRIP
8285 preserve_env WINDRES
8286
8287 printf "exec" >>config.status
8288 for i in "$0" "$@"; do
8289   test "$i" = --skip-meson || printf " '%s'" "$i" >>config.status
8290 done
8291 echo ' "$@"' >>config.status
8292 chmod +x config.status
8293
8294 rm -r "$TMPDIR1"