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="$QEMU_CXXFLAGS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
 158     CONFIGURE_CXXFLAGS=$(echo "$CONFIGURE_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 $CONFIGURE_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 $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 180       $LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 181 }
 182
 183 # symbolically link $1 to $2.  Portable version of "ln -sf".
 184 symlink() {
 185   rm -rf "$2"
 186   mkdir -p "$(dirname "$2")"
 187   ln -s "$1" "$2"
 188 }
 189
 190 # check whether a command is available to this shell (may be either an
 191 # executable or a builtin)
 192 has() {
 193     type "$1" >/dev/null 2>&1
 194 }
 195
 196 version_ge () {
 197     local_ver1=`echo $1 | tr . ' '`
 198     local_ver2=`echo $2 | tr . ' '`
 199     while true; do
 200         set x $local_ver1
 201         local_first=${2-0}
 202         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 203         shift ${2:+2}
 204         local_ver1=$*
 205         set x $local_ver2
 206         # the second argument finished, the first must be greater or equal
 207         test $# = 1 && return 0
 208         test $local_first -lt $2 && return 1
 209         test $local_first -gt $2 && return 0
 210         shift ${2:+2}
 211         local_ver2=$*
 212     done
 213 }
 214
 215 have_backend () {
 216     echo "$trace_backends" | grep "$1" >/dev/null
 217 }
 218
 219 glob() {
 220     eval test -z '"${1#'"$2"'}"'
 221 }
 222
 223 ld_has() {
 224     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 225 }
 226
 227 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 228 then
 229   error_exit "main directory cannot contain spaces nor colons"
 230 fi
 231
 232 # default parameters
 233 cpu=""
 234 iasl="iasl"
 235 interp_prefix="/usr/gnemul/qemu-%M"
 236 static="no"
 237 cross_prefix=""
 238 audio_drv_list=""
 239 block_drv_rw_whitelist=""
 240 block_drv_ro_whitelist=""
 241 host_cc="cc"
 242 audio_win_int=""
 243 libs_qga=""
 244 debug_info="yes"
 245 stack_protector=""
 246 safe_stack=""
 247 use_containers="yes"
 248 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 249
 250 if test -e "$source_path/.git"
 251 then
 252     git_update=yes
 253     git_submodules="ui/keycodemapdb"
 254     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
 255     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
 256 else
 257     git_update=no
 258     git_submodules=""
 259
 260     if ! test -f "$source_path/ui/keycodemapdb/README"
 261     then
 262         echo
 263         echo "ERROR: missing file $source_path/ui/keycodemapdb/README"
 264         echo
 265         echo "This is not a GIT checkout but module content appears to"
 266         echo "be missing. Do not use 'git archive' or GitHub download links"
 267         echo "to acquire QEMU source archives. Non-GIT builds are only"
 268         echo "supported with source archives linked from:"
 269         echo
 270         echo "  https://www.qemu.org/download/#source"
 271         echo
 272         echo "Developers working with GIT can use scripts/archive-source.sh"
 273         echo "if they need to create valid source archives."
 274         echo
 275         exit 1
 276     fi
 277 fi
 278 git="git"
 279
 280 # Don't accept a target_list environment variable.
 281 unset target_list
 282 unset target_list_exclude
 283
 284 # Default value for a variable defining feature "foo".
 285 #  * foo="no"  feature will only be used if --enable-foo arg is given
 286 #  * foo=""    feature will be searched for, and if found, will be used
 287 #              unless --disable-foo is given
 288 #  * foo="yes" this value will only be set by --enable-foo flag.
 289 #              feature will searched for,
 290 #              if not found, configure exits with error
 291 #
 292 # Always add --enable-foo and --disable-foo command line args.
 293 # Distributions want to ensure that several features are compiled in, and it
 294 # is impossible without a --enable-foo that exits if a feature is not found.
 295
 296 brlapi=""
 297 curl=""
 298 iconv="auto"
 299 curses="auto"
 300 docs="auto"
 301 fdt="auto"
 302 netmap="no"
 303 sdl="auto"
 304 sdl_image="auto"
 305 virtiofsd="auto"
 306 virtfs=""
 307 libudev="auto"
 308 mpath="auto"
 309 vnc="enabled"
 310 sparse="auto"
 311 vde=""
 312 vnc_sasl="auto"
 313 vnc_jpeg="auto"
 314 vnc_png="auto"
 315 xkbcommon="auto"
 316 xen=""
 317 xen_ctrl_version=""
 318 xen_pci_passthrough="auto"
 319 linux_aio=""
 320 linux_io_uring=""
 321 cap_ng=""
 322 attr=""
 323 libattr=""
 324 xfs=""
 325 tcg="enabled"
 326 membarrier=""
 327 vhost_net=""
 328 vhost_crypto=""
 329 vhost_scsi=""
 330 vhost_vsock=""
 331 vhost_user=""
 332 vhost_user_fs=""
 333 kvm="auto"
 334 hax="auto"
 335 hvf="auto"
 336 whpx="auto"
 337 rdma=""
 338 pvrdma=""
 339 gprof="no"
 340 debug_tcg="no"
 341 debug="no"
 342 sanitizers="no"
 343 tsan="no"
 344 fortify_source=""
 345 strip_opt="yes"
 346 tcg_interpreter="no"
 347 bigendian="no"
 348 mingw32="no"
 349 gcov="no"
 350 EXESUF=""
 351 HOST_DSOSUF=".so"
 352 modules="no"
 353 module_upgrades="no"
 354 prefix="/usr/local"
 355 qemu_suffix="qemu"
 356 slirp="auto"
 357 oss_lib=""
 358 bsd="no"
 359 linux="no"
 360 solaris="no"
 361 profiler="no"
 362 cocoa="auto"
 363 softmmu="yes"
 364 linux_user="no"
 365 bsd_user="no"
 366 blobs="true"
 367 pkgversion=""
 368 pie=""
 369 qom_cast_debug="yes"
 370 trace_backends="log"
 371 trace_file="trace"
 372 spice=""
 373 rbd=""
 374 smartcard=""
 375 u2f="auto"
 376 libusb=""
 377 usb_redir=""
 378 opengl=""
 379 opengl_dmabuf="no"
 380 cpuid_h="no"
 381 avx2_opt=""
 382 capstone="auto"
 383 lzo=""
 384 snappy=""
 385 bzip2=""
 386 lzfse=""
 387 zstd=""
 388 guest_agent=""
 389 guest_agent_with_vss="no"
 390 guest_agent_ntddscsi="no"
 391 guest_agent_msi=""
 392 vss_win32_sdk=""
 393 win_sdk="no"
 394 want_tools=""
 395 libiscsi=""
 396 libnfs=""
 397 coroutine=""
 398 coroutine_pool=""
 399 debug_stack_usage="no"
 400 crypto_afalg="no"
 401 seccomp=""
 402 glusterfs=""
 403 glusterfs_xlator_opt="no"
 404 glusterfs_discard="no"
 405 glusterfs_fallocate="no"
 406 glusterfs_zerofill="no"
 407 glusterfs_ftruncate_has_stat="no"
 408 glusterfs_iocb_has_stat="no"
 409 gtk=""
 410 gtk_gl="no"
 411 tls_priority="NORMAL"
 412 gnutls=""
 413 nettle=""
 414 nettle_xts="no"
 415 gcrypt=""
 416 gcrypt_hmac="no"
 417 gcrypt_xts="no"
 418 qemu_private_xts="yes"
 419 auth_pam=""
 420 vte=""
 421 virglrenderer=""
 422 tpm=""
 423 libssh=""
 424 live_block_migration="yes"
 425 numa=""
 426 tcmalloc="no"
 427 jemalloc="no"
 428 replication="yes"
 429 bochs="yes"
 430 cloop="yes"
 431 dmg="yes"
 432 qcow1="yes"
 433 vdi="yes"
 434 vvfat="yes"
 435 qed="yes"
 436 parallels="yes"
 437 sheepdog="no"
 438 libxml2=""
 439 debug_mutex="no"
 440 libpmem=""
 441 default_devices="yes"
 442 plugins="no"
 443 fuzzing="no"
 444 rng_none="no"
 445 secret_keyring=""
 446 libdaxctl=""
 447 meson=""
 448 ninja=""
 449 skip_meson=no
 450 gettext=""
 451
 452 bogus_os="no"
 453 malloc_trim="auto"
 454
 455 # parse CC options first
 456 for opt do
 457   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 458   case "$opt" in
 459   --cross-prefix=*) cross_prefix="$optarg"
 460   ;;
 461   --cc=*) CC="$optarg"
 462   ;;
 463   --cxx=*) CXX="$optarg"
 464   ;;
 465   --cpu=*) cpu="$optarg"
 466   ;;
 467   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 468                     QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 469   ;;
 470   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 471   ;;
 472   --extra-ldflags=*) QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 473                      EXTRA_LDFLAGS="$optarg"
 474   ;;
 475   --enable-debug-info) debug_info="yes"
 476   ;;
 477   --disable-debug-info) debug_info="no"
 478   ;;
 479   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 480   ;;
 481   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 482                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 483                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 484   ;;
 485   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 486                 cc_archs="$cc_archs $cc_arch"
 487                 eval "cross_cc_${cc_arch}=\$optarg"
 488                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 489   ;;
 490   esac
 491 done
 492 # OS specific
 493 # Using uname is really, really broken.  Once we have the right set of checks
 494 # we can eliminate its usage altogether.
 495
 496 # Preferred compiler:
 497 #  ${CC} (if set)
 498 #  ${cross_prefix}gcc (if cross-prefix specified)
 499 #  system compiler
 500 if test -z "${CC}${cross_prefix}"; then
 501   cc="$host_cc"
 502 else
 503   cc="${CC-${cross_prefix}gcc}"
 504 fi
 505
 506 if test -z "${CXX}${cross_prefix}"; then
 507   cxx="c++"
 508 else
 509   cxx="${CXX-${cross_prefix}g++}"
 510 fi
 511
 512 ar="${AR-${cross_prefix}ar}"
 513 as="${AS-${cross_prefix}as}"
 514 ccas="${CCAS-$cc}"
 515 cpp="${CPP-$cc -E}"
 516 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 517 ld="${LD-${cross_prefix}ld}"
 518 ranlib="${RANLIB-${cross_prefix}ranlib}"
 519 nm="${NM-${cross_prefix}nm}"
 520 strip="${STRIP-${cross_prefix}strip}"
 521 windres="${WINDRES-${cross_prefix}windres}"
 522 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 523 query_pkg_config() {
 524     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 525 }
 526 pkg_config=query_pkg_config
 527 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 528
 529 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 530 ARFLAGS="${ARFLAGS-rv}"
 531
 532 # default flags for all hosts
 533 # We use -fwrapv to tell the compiler that we require a C dialect where
 534 # left shift of signed integers is well defined and has the expected
 535 # 2s-complement style results. (Both clang and gcc agree that it
 536 # provides these semantics.)
 537 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
 538 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 539 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 540 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 541
 542 # Flags that are needed during configure but later taken care of by Meson
 543 CONFIGURE_CFLAGS="-std=gnu99 -Wall"
 544 CONFIGURE_LDFLAGS=
 545
 546
 547 check_define() {
 548 cat > $TMPC <<EOF
 549 #if !defined($1)
 550 #error $1 not defined
 551 #endif
 552 int main(void) { return 0; }
 553 EOF
 554   compile_object
 555 }
 556
 557 check_include() {
 558 cat > $TMPC <<EOF
 559 #include <$1>
 560 int main(void) { return 0; }
 561 EOF
 562   compile_object
 563 }
 564
 565 write_c_skeleton() {
 566     cat > $TMPC <<EOF
 567 int main(void) { return 0; }
 568 EOF
 569 }
 570
 571 write_c_fuzzer_skeleton() {
 572     cat > $TMPC <<EOF
 573 #include <stdint.h>
 574 #include <sys/types.h>
 575 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 576 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 577 EOF
 578 }
 579
 580 if check_define __linux__ ; then
 581   targetos="Linux"
 582 elif check_define _WIN32 ; then
 583   targetos='MINGW32'
 584 elif check_define __OpenBSD__ ; then
 585   targetos='OpenBSD'
 586 elif check_define __sun__ ; then
 587   targetos='SunOS'
 588 elif check_define __HAIKU__ ; then
 589   targetos='Haiku'
 590 elif check_define __FreeBSD__ ; then
 591   targetos='FreeBSD'
 592 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 593   targetos='GNU/kFreeBSD'
 594 elif check_define __DragonFly__ ; then
 595   targetos='DragonFly'
 596 elif check_define __NetBSD__; then
 597   targetos='NetBSD'
 598 elif check_define __APPLE__; then
 599   targetos='Darwin'
 600 else
 601   # This is a fatal error, but don't report it yet, because we
 602   # might be going to just print the --help text, or it might
 603   # be the result of a missing compiler.
 604   targetos='bogus'
 605   bogus_os='yes'
 606 fi
 607
 608 # Some host OSes need non-standard checks for which CPU to use.
 609 # Note that these checks are broken for cross-compilation: if you're
 610 # cross-compiling to one of these OSes then you'll need to specify
 611 # the correct CPU with the --cpu option.
 612 case $targetos in
 613 Darwin)
 614   # on Leopard most of the system is 32-bit, so we have to ask the kernel if we can
 615   # run 64-bit userspace code.
 616   # If the user didn't specify a CPU explicitly and the kernel says this is
 617   # 64 bit hw, then assume x86_64. Otherwise fall through to the usual detection code.
 618   if test -z "$cpu" && test "$(sysctl -n hw.optional.x86_64)" = "1"; then
 619     cpu="x86_64"
 620   fi
 621   HOST_DSOSUF=".dylib"
 622   ;;
 623 SunOS)
 624   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 625   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 626     cpu="x86_64"
 627   fi
 628 esac
 629
 630 if test ! -z "$cpu" ; then
 631   # command line argument
 632   :
 633 elif check_define __i386__ ; then
 634   cpu="i386"
 635 elif check_define __x86_64__ ; then
 636   if check_define __ILP32__ ; then
 637     cpu="x32"
 638   else
 639     cpu="x86_64"
 640   fi
 641 elif check_define __sparc__ ; then
 642   if check_define __arch64__ ; then
 643     cpu="sparc64"
 644   else
 645     cpu="sparc"
 646   fi
 647 elif check_define _ARCH_PPC ; then
 648   if check_define _ARCH_PPC64 ; then
 649     if check_define _LITTLE_ENDIAN ; then
 650       cpu="ppc64le"
 651     else
 652       cpu="ppc64"
 653     fi
 654   else
 655     cpu="ppc"
 656   fi
 657 elif check_define __mips__ ; then
 658   cpu="mips"
 659 elif check_define __s390__ ; then
 660   if check_define __s390x__ ; then
 661     cpu="s390x"
 662   else
 663     cpu="s390"
 664   fi
 665 elif check_define __riscv ; then
 666   if check_define _LP64 ; then
 667     cpu="riscv64"
 668   else
 669     cpu="riscv32"
 670   fi
 671 elif check_define __arm__ ; then
 672   cpu="arm"
 673 elif check_define __aarch64__ ; then
 674   cpu="aarch64"
 675 else
 676   cpu=$(uname -m)
 677 fi
 678
 679 ARCH=
 680 # Normalise host CPU name and set ARCH.
 681 # Note that this case should only have supported host CPUs, not guests.
 682 case "$cpu" in
 683   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 684   ;;
 685   ppc64le)
 686     ARCH="ppc64"
 687   ;;
 688   i386|i486|i586|i686|i86pc|BePC)
 689     cpu="i386"
 690   ;;
 691   x86_64|amd64)
 692     cpu="x86_64"
 693   ;;
 694   armv*b|armv*l|arm)
 695     cpu="arm"
 696   ;;
 697   aarch64)
 698     cpu="aarch64"
 699   ;;
 700   mips*)
 701     cpu="mips"
 702   ;;
 703   sparc|sun4[cdmuv])
 704     cpu="sparc"
 705   ;;
 706   *)
 707     # This will result in either an error or falling back to TCI later
 708     ARCH=unknown
 709   ;;
 710 esac
 711 if test -z "$ARCH"; then
 712   ARCH="$cpu"
 713 fi
 714
 715 # OS specific
 716
 717 case $targetos in
 718 MINGW32*)
 719   mingw32="yes"
 720   vhost_user="no"
 721   audio_possible_drivers="dsound sdl"
 722   if check_include dsound.h; then
 723     audio_drv_list="dsound"
 724   else
 725     audio_drv_list=""
 726   fi
 727   supported_os="yes"
 728   pie="no"
 729 ;;
 730 GNU/kFreeBSD)
 731   bsd="yes"
 732   audio_drv_list="oss try-sdl"
 733   audio_possible_drivers="oss sdl pa"
 734 ;;
 735 FreeBSD)
 736   bsd="yes"
 737   make="${MAKE-gmake}"
 738   audio_drv_list="oss try-sdl"
 739   audio_possible_drivers="oss sdl pa"
 740   # needed for kinfo_getvmmap(3) in libutil.h
 741   netmap=""  # enable netmap autodetect
 742 ;;
 743 DragonFly)
 744   bsd="yes"
 745   make="${MAKE-gmake}"
 746   audio_drv_list="oss try-sdl"
 747   audio_possible_drivers="oss sdl pa"
 748 ;;
 749 NetBSD)
 750   bsd="yes"
 751   make="${MAKE-gmake}"
 752   audio_drv_list="oss try-sdl"
 753   audio_possible_drivers="oss sdl"
 754   oss_lib="-lossaudio"
 755 ;;
 756 OpenBSD)
 757   bsd="yes"
 758   make="${MAKE-gmake}"
 759   audio_drv_list="try-sdl"
 760   audio_possible_drivers="sdl"
 761 ;;
 762 Darwin)
 763   bsd="yes"
 764   darwin="yes"
 765   if [ "$cpu" = "x86_64" ] ; then
 766     QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
 767     QEMU_LDFLAGS="-arch x86_64 $QEMU_LDFLAGS"
 768   fi
 769   cocoa="enabled"
 770   audio_drv_list="coreaudio try-sdl"
 771   audio_possible_drivers="coreaudio sdl"
 772   QEMU_LDFLAGS="-framework CoreFoundation -framework IOKit $QEMU_LDFLAGS"
 773   # Disable attempts to use ObjectiveC features in os/object.h since they
 774   # won't work when we're compiling with gcc as a C compiler.
 775   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 776 ;;
 777 SunOS)
 778   solaris="yes"
 779   make="${MAKE-gmake}"
 780   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 781   if test -f /usr/include/sys/soundcard.h ; then
 782     audio_drv_list="oss try-sdl"
 783   fi
 784   audio_possible_drivers="oss sdl"
 785 # needed for CMSG_ macros in sys/socket.h
 786   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 787 # needed for TIOCWIN* defines in termios.h
 788   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 789 ;;
 790 Haiku)
 791   haiku="yes"
 792   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -DBSD_SOURCE $QEMU_CFLAGS"
 793 ;;
 794 Linux)
 795   audio_drv_list="try-pa oss"
 796   audio_possible_drivers="oss alsa sdl pa"
 797   linux="yes"
 798   linux_user="yes"
 799 ;;
 800 esac
 801
 802 if [ "$bsd" = "yes" ] ; then
 803   if [ "$darwin" != "yes" ] ; then
 804     bsd_user="yes"
 805   fi
 806 fi
 807
 808 : ${make=${MAKE-make}}
 809
 810 # We prefer python 3.x. A bare 'python' is traditionally
 811 # python 2.x, but some distros have it as python 3.x, so
 812 # we check that too
 813 python=
 814 explicit_python=no
 815 for binary in "${PYTHON-python3}" python
 816 do
 817     if has "$binary"
 818     then
 819         python=$(command -v "$binary")
 820         break
 821     fi
 822 done
 823
 824
 825 # Check for ancillary tools used in testing
 826 genisoimage=
 827 for binary in genisoimage mkisofs
 828 do
 829     if has $binary
 830     then
 831         genisoimage=$(command -v "$binary")
 832         break
 833     fi
 834 done
 835
 836 : ${smbd=${SMBD-/usr/sbin/smbd}}
 837
 838 # Default objcc to clang if available, otherwise use CC
 839 if has clang; then
 840   objcc=clang
 841 else
 842   objcc="$cc"
 843 fi
 844
 845 if test "$mingw32" = "yes" ; then
 846   EXESUF=".exe"
 847   HOST_DSOSUF=".dll"
 848   # MinGW needs -mthreads for TLS and macro _MT.
 849   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 850   write_c_skeleton;
 851   prefix="/qemu"
 852   qemu_suffix=""
 853   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 854 fi
 855
 856 werror=""
 857
 858 for opt do
 859   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 860   case "$opt" in
 861   --help|-h) show_help=yes
 862   ;;
 863   --version|-V) exec cat $source_path/VERSION
 864   ;;
 865   --prefix=*) prefix="$optarg"
 866   ;;
 867   --interp-prefix=*) interp_prefix="$optarg"
 868   ;;
 869   --cross-prefix=*)
 870   ;;
 871   --cc=*)
 872   ;;
 873   --host-cc=*) host_cc="$optarg"
 874   ;;
 875   --cxx=*)
 876   ;;
 877   --iasl=*) iasl="$optarg"
 878   ;;
 879   --objcc=*) objcc="$optarg"
 880   ;;
 881   --make=*) make="$optarg"
 882   ;;
 883   --install=*)
 884   ;;
 885   --python=*) python="$optarg" ; explicit_python=yes
 886   ;;
 887   --sphinx-build=*) sphinx_build="$optarg"
 888   ;;
 889   --skip-meson) skip_meson=yes
 890   ;;
 891   --meson=*) meson="$optarg"
 892   ;;
 893   --ninja=*) ninja="$optarg"
 894   ;;
 895   --smbd=*) smbd="$optarg"
 896   ;;
 897   --extra-cflags=*)
 898   ;;
 899   --extra-cxxflags=*)
 900   ;;
 901   --extra-ldflags=*)
 902   ;;
 903   --enable-debug-info)
 904   ;;
 905   --disable-debug-info)
 906   ;;
 907   --cross-cc-*)
 908   ;;
 909   --enable-modules)
 910       modules="yes"
 911   ;;
 912   --disable-modules)
 913       modules="no"
 914   ;;
 915   --disable-module-upgrades) module_upgrades="no"
 916   ;;
 917   --enable-module-upgrades) module_upgrades="yes"
 918   ;;
 919   --cpu=*)
 920   ;;
 921   --target-list=*) target_list="$optarg"
 922                    if test "$target_list_exclude"; then
 923                        error_exit "Can't mix --target-list with --target-list-exclude"
 924                    fi
 925   ;;
 926   --target-list-exclude=*) target_list_exclude="$optarg"
 927                    if test "$target_list"; then
 928                        error_exit "Can't mix --target-list-exclude with --target-list"
 929                    fi
 930   ;;
 931   --enable-trace-backends=*) trace_backends="$optarg"
 932   ;;
 933   # XXX: backwards compatibility
 934   --enable-trace-backend=*) trace_backends="$optarg"
 935   ;;
 936   --with-trace-file=*) trace_file="$optarg"
 937   ;;
 938   --with-default-devices) default_devices="yes"
 939   ;;
 940   --without-default-devices) default_devices="no"
 941   ;;
 942   --enable-gprof) gprof="yes"
 943   ;;
 944   --enable-gcov) gcov="yes"
 945   ;;
 946   --static)
 947     static="yes"
 948     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 949   ;;
 950   --mandir=*) mandir="$optarg"
 951   ;;
 952   --bindir=*) bindir="$optarg"
 953   ;;
 954   --libdir=*) libdir="$optarg"
 955   ;;
 956   --libexecdir=*) libexecdir="$optarg"
 957   ;;
 958   --includedir=*) includedir="$optarg"
 959   ;;
 960   --datadir=*) datadir="$optarg"
 961   ;;
 962   --with-suffix=*) qemu_suffix="$optarg"
 963   ;;
 964   --docdir=*) docdir="$optarg"
 965   ;;
 966   --localedir=*) localedir="$optarg"
 967   ;;
 968   --sysconfdir=*) sysconfdir="$optarg"
 969   ;;
 970   --localstatedir=*) local_statedir="$optarg"
 971   ;;
 972   --firmwarepath=*) firmwarepath="$optarg"
 973   ;;
 974   --host=*|--build=*|\
 975   --disable-dependency-tracking|\
 976   --sbindir=*|--sharedstatedir=*|\
 977   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 978   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 979     # These switches are silently ignored, for compatibility with
 980     # autoconf-generated configure scripts. This allows QEMU's
 981     # configure to be used by RPM and similar macros that set
 982     # lots of directory switches by default.
 983   ;;
 984   --disable-sdl) sdl="disabled"
 985   ;;
 986   --enable-sdl) sdl="enabled"
 987   ;;
 988   --disable-sdl-image) sdl_image="disabled"
 989   ;;
 990   --enable-sdl-image) sdl_image="enabled"
 991   ;;
 992   --disable-qom-cast-debug) qom_cast_debug="no"
 993   ;;
 994   --enable-qom-cast-debug) qom_cast_debug="yes"
 995   ;;
 996   --disable-virtfs) virtfs="no"
 997   ;;
 998   --enable-virtfs) virtfs="yes"
 999   ;;
1000   --disable-libudev) libudev="disabled"
1001   ;;
1002   --enable-libudev) libudev="enabled"
1003   ;;
1004   --disable-virtiofsd) virtiofsd="disabled"
1005   ;;
1006   --enable-virtiofsd) virtiofsd="enabled"
1007   ;;
1008   --disable-mpath) mpath="disabled"
1009   ;;
1010   --enable-mpath) mpath="enabled"
1011   ;;
1012   --disable-vnc) vnc="disabled"
1013   ;;
1014   --enable-vnc) vnc="enabled"
1015   ;;
1016   --disable-gettext) gettext="false"
1017   ;;
1018   --enable-gettext) gettext="true"
1019   ;;
1020   --oss-lib=*) oss_lib="$optarg"
1021   ;;
1022   --audio-drv-list=*) audio_drv_list="$optarg"
1023   ;;
1024   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1025   ;;
1026   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1027   ;;
1028   --enable-debug-tcg) debug_tcg="yes"
1029   ;;
1030   --disable-debug-tcg) debug_tcg="no"
1031   ;;
1032   --enable-debug)
1033       # Enable debugging options that aren't excessively noisy
1034       debug_tcg="yes"
1035       debug_mutex="yes"
1036       debug="yes"
1037       strip_opt="no"
1038       fortify_source="no"
1039   ;;
1040   --enable-sanitizers) sanitizers="yes"
1041   ;;
1042   --disable-sanitizers) sanitizers="no"
1043   ;;
1044   --enable-tsan) tsan="yes"
1045   ;;
1046   --disable-tsan) tsan="no"
1047   ;;
1048   --enable-sparse) sparse="enabled"
1049   ;;
1050   --disable-sparse) sparse="disabled"
1051   ;;
1052   --disable-strip) strip_opt="no"
1053   ;;
1054   --disable-vnc-sasl) vnc_sasl="disabled"
1055   ;;
1056   --enable-vnc-sasl) vnc_sasl="enabled"
1057   ;;
1058   --disable-vnc-jpeg) vnc_jpeg="disabled"
1059   ;;
1060   --enable-vnc-jpeg) vnc_jpeg="enabled"
1061   ;;
1062   --disable-vnc-png) vnc_png="disabled"
1063   ;;
1064   --enable-vnc-png) vnc_png="enabled"
1065   ;;
1066   --disable-slirp) slirp="disabled"
1067   ;;
1068   --enable-slirp=git) slirp="internal"
1069   ;;
1070   --enable-slirp=system) slirp="system"
1071   ;;
1072   --disable-vde) vde="no"
1073   ;;
1074   --enable-vde) vde="yes"
1075   ;;
1076   --disable-netmap) netmap="no"
1077   ;;
1078   --enable-netmap) netmap="yes"
1079   ;;
1080   --disable-xen) xen="disabled"
1081   ;;
1082   --enable-xen) xen="enabled"
1083   ;;
1084   --disable-xen-pci-passthrough) xen_pci_passthrough="disabled"
1085   ;;
1086   --enable-xen-pci-passthrough) xen_pci_passthrough="enabled"
1087   ;;
1088   --disable-brlapi) brlapi="no"
1089   ;;
1090   --enable-brlapi) brlapi="yes"
1091   ;;
1092   --disable-kvm) kvm="disabled"
1093   ;;
1094   --enable-kvm) kvm="enabled"
1095   ;;
1096   --disable-hax) hax="disabled"
1097   ;;
1098   --enable-hax) hax="enabled"
1099   ;;
1100   --disable-hvf) hvf="disabled"
1101   ;;
1102   --enable-hvf) hvf="enabled"
1103   ;;
1104   --disable-whpx) whpx="disabled"
1105   ;;
1106   --enable-whpx) whpx="enabled"
1107   ;;
1108   --disable-tcg-interpreter) tcg_interpreter="no"
1109   ;;
1110   --enable-tcg-interpreter) tcg_interpreter="yes"
1111   ;;
1112   --disable-cap-ng)  cap_ng="no"
1113   ;;
1114   --enable-cap-ng) cap_ng="yes"
1115   ;;
1116   --disable-tcg) tcg="disabled"
1117   ;;
1118   --enable-tcg) tcg="enabled"
1119   ;;
1120   --disable-malloc-trim) malloc_trim="disabled"
1121   ;;
1122   --enable-malloc-trim) malloc_trim="enabled"
1123   ;;
1124   --disable-spice) spice="no"
1125   ;;
1126   --enable-spice) spice="yes"
1127   ;;
1128   --disable-libiscsi) libiscsi="no"
1129   ;;
1130   --enable-libiscsi) libiscsi="yes"
1131   ;;
1132   --disable-libnfs) libnfs="no"
1133   ;;
1134   --enable-libnfs) libnfs="yes"
1135   ;;
1136   --enable-profiler) profiler="yes"
1137   ;;
1138   --disable-cocoa) cocoa="disabled"
1139   ;;
1140   --enable-cocoa)
1141       cocoa="enabled" ;
1142       audio_drv_list="coreaudio $(echo $audio_drv_list | sed s,coreaudio,,g)"
1143   ;;
1144   --disable-system) softmmu="no"
1145   ;;
1146   --enable-system) softmmu="yes"
1147   ;;
1148   --disable-user)
1149       linux_user="no" ;
1150       bsd_user="no" ;
1151   ;;
1152   --enable-user) ;;
1153   --disable-linux-user) linux_user="no"
1154   ;;
1155   --enable-linux-user) linux_user="yes"
1156   ;;
1157   --disable-bsd-user) bsd_user="no"
1158   ;;
1159   --enable-bsd-user) bsd_user="yes"
1160   ;;
1161   --enable-pie) pie="yes"
1162   ;;
1163   --disable-pie) pie="no"
1164   ;;
1165   --enable-werror) werror="yes"
1166   ;;
1167   --disable-werror) werror="no"
1168   ;;
1169   --enable-stack-protector) stack_protector="yes"
1170   ;;
1171   --disable-stack-protector) stack_protector="no"
1172   ;;
1173   --enable-safe-stack) safe_stack="yes"
1174   ;;
1175   --disable-safe-stack) safe_stack="no"
1176   ;;
1177   --disable-curses) curses="disabled"
1178   ;;
1179   --enable-curses) curses="enabled"
1180   ;;
1181   --disable-iconv) iconv="disabled"
1182   ;;
1183   --enable-iconv) iconv="enabled"
1184   ;;
1185   --disable-curl) curl="no"
1186   ;;
1187   --enable-curl) curl="yes"
1188   ;;
1189   --disable-fdt) fdt="disabled"
1190   ;;
1191   --enable-fdt) fdt="enabled"
1192   ;;
1193   --enable-fdt=git) fdt="internal"
1194   ;;
1195   --enable-fdt=system) fdt="system"
1196   ;;
1197   --disable-linux-aio) linux_aio="no"
1198   ;;
1199   --enable-linux-aio) linux_aio="yes"
1200   ;;
1201   --disable-linux-io-uring) linux_io_uring="no"
1202   ;;
1203   --enable-linux-io-uring) linux_io_uring="yes"
1204   ;;
1205   --disable-attr) attr="no"
1206   ;;
1207   --enable-attr) attr="yes"
1208   ;;
1209   --disable-membarrier) membarrier="no"
1210   ;;
1211   --enable-membarrier) membarrier="yes"
1212   ;;
1213   --disable-blobs) blobs="false"
1214   ;;
1215   --with-pkgversion=*) pkgversion="$optarg"
1216   ;;
1217   --with-coroutine=*) coroutine="$optarg"
1218   ;;
1219   --disable-coroutine-pool) coroutine_pool="no"
1220   ;;
1221   --enable-coroutine-pool) coroutine_pool="yes"
1222   ;;
1223   --enable-debug-stack-usage) debug_stack_usage="yes"
1224   ;;
1225   --enable-crypto-afalg) crypto_afalg="yes"
1226   ;;
1227   --disable-crypto-afalg) crypto_afalg="no"
1228   ;;
1229   --disable-docs) docs="disabled"
1230   ;;
1231   --enable-docs) docs="enabled"
1232   ;;
1233   --disable-vhost-net) vhost_net="no"
1234   ;;
1235   --enable-vhost-net) vhost_net="yes"
1236   ;;
1237   --disable-vhost-crypto) vhost_crypto="no"
1238   ;;
1239   --enable-vhost-crypto) vhost_crypto="yes"
1240   ;;
1241   --disable-vhost-scsi) vhost_scsi="no"
1242   ;;
1243   --enable-vhost-scsi) vhost_scsi="yes"
1244   ;;
1245   --disable-vhost-vsock) vhost_vsock="no"
1246   ;;
1247   --enable-vhost-vsock) vhost_vsock="yes"
1248   ;;
1249   --disable-vhost-user-fs) vhost_user_fs="no"
1250   ;;
1251   --enable-vhost-user-fs) vhost_user_fs="yes"
1252   ;;
1253   --disable-opengl) opengl="no"
1254   ;;
1255   --enable-opengl) opengl="yes"
1256   ;;
1257   --disable-rbd) rbd="no"
1258   ;;
1259   --enable-rbd) rbd="yes"
1260   ;;
1261   --disable-xfsctl) xfs="no"
1262   ;;
1263   --enable-xfsctl) xfs="yes"
1264   ;;
1265   --disable-smartcard) smartcard="no"
1266   ;;
1267   --enable-smartcard) smartcard="yes"
1268   ;;
1269   --disable-u2f) u2f="disabled"
1270   ;;
1271   --enable-u2f) u2f="enabled"
1272   ;;
1273   --disable-libusb) libusb="no"
1274   ;;
1275   --enable-libusb) libusb="yes"
1276   ;;
1277   --disable-usb-redir) usb_redir="no"
1278   ;;
1279   --enable-usb-redir) usb_redir="yes"
1280   ;;
1281   --disable-zlib-test)
1282   ;;
1283   --disable-lzo) lzo="no"
1284   ;;
1285   --enable-lzo) lzo="yes"
1286   ;;
1287   --disable-snappy) snappy="no"
1288   ;;
1289   --enable-snappy) snappy="yes"
1290   ;;
1291   --disable-bzip2) bzip2="no"
1292   ;;
1293   --enable-bzip2) bzip2="yes"
1294   ;;
1295   --enable-lzfse) lzfse="yes"
1296   ;;
1297   --disable-lzfse) lzfse="no"
1298   ;;
1299   --disable-zstd) zstd="no"
1300   ;;
1301   --enable-zstd) zstd="yes"
1302   ;;
1303   --enable-guest-agent) guest_agent="yes"
1304   ;;
1305   --disable-guest-agent) guest_agent="no"
1306   ;;
1307   --enable-guest-agent-msi) guest_agent_msi="yes"
1308   ;;
1309   --disable-guest-agent-msi) guest_agent_msi="no"
1310   ;;
1311   --with-vss-sdk) vss_win32_sdk=""
1312   ;;
1313   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1314   ;;
1315   --without-vss-sdk) vss_win32_sdk="no"
1316   ;;
1317   --with-win-sdk) win_sdk=""
1318   ;;
1319   --with-win-sdk=*) win_sdk="$optarg"
1320   ;;
1321   --without-win-sdk) win_sdk="no"
1322   ;;
1323   --enable-tools) want_tools="yes"
1324   ;;
1325   --disable-tools) want_tools="no"
1326   ;;
1327   --enable-seccomp) seccomp="yes"
1328   ;;
1329   --disable-seccomp) seccomp="no"
1330   ;;
1331   --disable-glusterfs) glusterfs="no"
1332   ;;
1333   --disable-avx2) avx2_opt="no"
1334   ;;
1335   --enable-avx2) avx2_opt="yes"
1336   ;;
1337   --disable-avx512f) avx512f_opt="no"
1338   ;;
1339   --enable-avx512f) avx512f_opt="yes"
1340   ;;
1341
1342   --enable-glusterfs) glusterfs="yes"
1343   ;;
1344   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1345       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1346   ;;
1347   --enable-vhdx|--disable-vhdx)
1348       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1349   ;;
1350   --enable-uuid|--disable-uuid)
1351       echo "$0: $opt is obsolete, UUID support is always built" >&2
1352   ;;
1353   --disable-gtk) gtk="no"
1354   ;;
1355   --enable-gtk) gtk="yes"
1356   ;;
1357   --tls-priority=*) tls_priority="$optarg"
1358   ;;
1359   --disable-gnutls) gnutls="no"
1360   ;;
1361   --enable-gnutls) gnutls="yes"
1362   ;;
1363   --disable-nettle) nettle="no"
1364   ;;
1365   --enable-nettle) nettle="yes"
1366   ;;
1367   --disable-gcrypt) gcrypt="no"
1368   ;;
1369   --enable-gcrypt) gcrypt="yes"
1370   ;;
1371   --disable-auth-pam) auth_pam="no"
1372   ;;
1373   --enable-auth-pam) auth_pam="yes"
1374   ;;
1375   --enable-rdma) rdma="yes"
1376   ;;
1377   --disable-rdma) rdma="no"
1378   ;;
1379   --enable-pvrdma) pvrdma="yes"
1380   ;;
1381   --disable-pvrdma) pvrdma="no"
1382   ;;
1383   --disable-vte) vte="no"
1384   ;;
1385   --enable-vte) vte="yes"
1386   ;;
1387   --disable-virglrenderer) virglrenderer="no"
1388   ;;
1389   --enable-virglrenderer) virglrenderer="yes"
1390   ;;
1391   --disable-tpm) tpm="no"
1392   ;;
1393   --enable-tpm) tpm="yes"
1394   ;;
1395   --disable-libssh) libssh="no"
1396   ;;
1397   --enable-libssh) libssh="yes"
1398   ;;
1399   --disable-live-block-migration) live_block_migration="no"
1400   ;;
1401   --enable-live-block-migration) live_block_migration="yes"
1402   ;;
1403   --disable-numa) numa="no"
1404   ;;
1405   --enable-numa) numa="yes"
1406   ;;
1407   --disable-libxml2) libxml2="no"
1408   ;;
1409   --enable-libxml2) libxml2="yes"
1410   ;;
1411   --disable-tcmalloc) tcmalloc="no"
1412   ;;
1413   --enable-tcmalloc) tcmalloc="yes"
1414   ;;
1415   --disable-jemalloc) jemalloc="no"
1416   ;;
1417   --enable-jemalloc) jemalloc="yes"
1418   ;;
1419   --disable-replication) replication="no"
1420   ;;
1421   --enable-replication) replication="yes"
1422   ;;
1423   --disable-bochs) bochs="no"
1424   ;;
1425   --enable-bochs) bochs="yes"
1426   ;;
1427   --disable-cloop) cloop="no"
1428   ;;
1429   --enable-cloop) cloop="yes"
1430   ;;
1431   --disable-dmg) dmg="no"
1432   ;;
1433   --enable-dmg) dmg="yes"
1434   ;;
1435   --disable-qcow1) qcow1="no"
1436   ;;
1437   --enable-qcow1) qcow1="yes"
1438   ;;
1439   --disable-vdi) vdi="no"
1440   ;;
1441   --enable-vdi) vdi="yes"
1442   ;;
1443   --disable-vvfat) vvfat="no"
1444   ;;
1445   --enable-vvfat) vvfat="yes"
1446   ;;
1447   --disable-qed) qed="no"
1448   ;;
1449   --enable-qed) qed="yes"
1450   ;;
1451   --disable-parallels) parallels="no"
1452   ;;
1453   --enable-parallels) parallels="yes"
1454   ;;
1455   --disable-sheepdog) sheepdog="no"
1456   ;;
1457   --enable-sheepdog) sheepdog="yes"
1458   ;;
1459   --disable-vhost-user) vhost_user="no"
1460   ;;
1461   --enable-vhost-user) vhost_user="yes"
1462   ;;
1463   --disable-vhost-vdpa) vhost_vdpa="no"
1464   ;;
1465   --enable-vhost-vdpa) vhost_vdpa="yes"
1466   ;;
1467   --disable-vhost-kernel) vhost_kernel="no"
1468   ;;
1469   --enable-vhost-kernel) vhost_kernel="yes"
1470   ;;
1471   --disable-capstone) capstone="disabled"
1472   ;;
1473   --enable-capstone) capstone="enabled"
1474   ;;
1475   --enable-capstone=git) capstone="internal"
1476   ;;
1477   --enable-capstone=system) capstone="system"
1478   ;;
1479   --with-git=*) git="$optarg"
1480   ;;
1481   --enable-git-update) git_update=yes
1482   ;;
1483   --disable-git-update) git_update=no
1484   ;;
1485   --enable-debug-mutex) debug_mutex=yes
1486   ;;
1487   --disable-debug-mutex) debug_mutex=no
1488   ;;
1489   --enable-libpmem) libpmem=yes
1490   ;;
1491   --disable-libpmem) libpmem=no
1492   ;;
1493   --enable-xkbcommon) xkbcommon="enabled"
1494   ;;
1495   --disable-xkbcommon) xkbcommon="disabled"
1496   ;;
1497   --enable-plugins) plugins="yes"
1498   ;;
1499   --disable-plugins) plugins="no"
1500   ;;
1501   --enable-containers) use_containers="yes"
1502   ;;
1503   --disable-containers) use_containers="no"
1504   ;;
1505   --enable-fuzzing) fuzzing=yes
1506   ;;
1507   --disable-fuzzing) fuzzing=no
1508   ;;
1509   --gdb=*) gdb_bin="$optarg"
1510   ;;
1511   --enable-rng-none) rng_none=yes
1512   ;;
1513   --disable-rng-none) rng_none=no
1514   ;;
1515   --enable-keyring) secret_keyring="yes"
1516   ;;
1517   --disable-keyring) secret_keyring="no"
1518   ;;
1519   --enable-libdaxctl) libdaxctl=yes
1520   ;;
1521   --disable-libdaxctl) libdaxctl=no
1522   ;;
1523   *)
1524       echo "ERROR: unknown option $opt"
1525       echo "Try '$0 --help' for more information"
1526       exit 1
1527   ;;
1528   esac
1529 done
1530
1531 libdir="${libdir:-$prefix/lib}"
1532 libexecdir="${libexecdir:-$prefix/libexec}"
1533 includedir="${includedir:-$prefix/include}"
1534
1535 if test "$mingw32" = "yes" ; then
1536     mandir="$prefix"
1537     datadir="$prefix"
1538     docdir="$prefix"
1539     bindir="$prefix"
1540     sysconfdir="$prefix"
1541     local_statedir="$prefix"
1542 else
1543     mandir="${mandir:-$prefix/share/man}"
1544     datadir="${datadir:-$prefix/share}"
1545     docdir="${docdir:-$prefix/share/doc}"
1546     bindir="${bindir:-$prefix/bin}"
1547     sysconfdir="${sysconfdir:-$prefix/etc}"
1548     local_statedir="${local_statedir:-$prefix/var}"
1549 fi
1550 firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1551 localedir="${localedir:-$datadir/locale}"
1552
1553 case "$cpu" in
1554     ppc)
1555            CPU_CFLAGS="-m32"
1556            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1557            ;;
1558     ppc64)
1559            CPU_CFLAGS="-m64"
1560            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1561            ;;
1562     sparc)
1563            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1564            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1565            ;;
1566     sparc64)
1567            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1568            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1569            ;;
1570     s390)
1571            CPU_CFLAGS="-m31"
1572            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1573            ;;
1574     s390x)
1575            CPU_CFLAGS="-m64"
1576            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1577            ;;
1578     i386)
1579            CPU_CFLAGS="-m32"
1580            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1581            ;;
1582     x86_64)
1583            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1584            # If we truly care, we should simply detect this case at
1585            # runtime and generate the fallback to serial emulation.
1586            CPU_CFLAGS="-m64 -mcx16"
1587            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1588            ;;
1589     x32)
1590            CPU_CFLAGS="-mx32"
1591            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1592            ;;
1593     # No special flags required for other host CPUs
1594 esac
1595
1596 eval "cross_cc_${cpu}=\$host_cc"
1597 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1598 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1599
1600 # For user-mode emulation the host arch has to be one we explicitly
1601 # support, even if we're using TCI.
1602 if [ "$ARCH" = "unknown" ]; then
1603   bsd_user="no"
1604   linux_user="no"
1605 fi
1606
1607 default_target_list=""
1608 deprecated_targets_list=ppc64abi32-linux-user,tilegx-linux-user,lm32-softmmu,unicore32-softmmu
1609 deprecated_features=""
1610 mak_wilds=""
1611
1612 if [ "$softmmu" = "yes" ]; then
1613     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-softmmu.mak"
1614 fi
1615 if [ "$linux_user" = "yes" ]; then
1616     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-linux-user.mak"
1617 fi
1618 if [ "$bsd_user" = "yes" ]; then
1619     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-bsd-user.mak"
1620 fi
1621
1622 # If the user doesn't explicitly specify a deprecated target we will
1623 # skip it.
1624 if test -z "$target_list"; then
1625     if test -z "$target_list_exclude"; then
1626         target_list_exclude="$deprecated_targets_list"
1627     else
1628         target_list_exclude="$target_list_exclude,$deprecated_targets_list"
1629     fi
1630 fi
1631
1632 for config in $mak_wilds; do
1633     target="$(basename "$config" .mak)"
1634     if echo "$target_list_exclude" | grep -vq "$target"; then
1635         default_target_list="${default_target_list} $target"
1636     fi
1637 done
1638
1639 # Enumerate public trace backends for --help output
1640 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1641
1642 if test x"$show_help" = x"yes" ; then
1643 cat << EOF
1644
1645 Usage: configure [options]
1646 Options: [defaults in brackets after descriptions]
1647
1648 Standard options:
1649   --help                   print this message
1650   --prefix=PREFIX          install in PREFIX [$prefix]
1651   --interp-prefix=PREFIX   where to find shared libraries, etc.
1652                            use %M for cpu name [$interp_prefix]
1653   --target-list=LIST       set target list (default: build everything)
1654 $(echo Available targets: $default_target_list | \
1655   fold -s -w 53 | sed -e 's/^/                           /')
1656   --target-list-exclude=LIST exclude a set of targets from the default target-list
1657
1658 Advanced options (experts only):
1659   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
1660   --cc=CC                  use C compiler CC [$cc]
1661   --iasl=IASL              use ACPI compiler IASL [$iasl]
1662   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1663                            build time
1664   --cxx=CXX                use C++ compiler CXX [$cxx]
1665   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1666   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1667   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1668   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1669   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1670   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1671   --make=MAKE              use specified make [$make]
1672   --python=PYTHON          use specified python [$python]
1673   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1674   --meson=MESON            use specified meson [$meson]
1675   --ninja=NINJA            use specified ninja [$ninja]
1676   --smbd=SMBD              use specified smbd [$smbd]
1677   --with-git=GIT           use specified git [$git]
1678   --static                 enable static build [$static]
1679   --mandir=PATH            install man pages in PATH
1680   --datadir=PATH           install firmware in PATH/$qemu_suffix
1681   --localedir=PATH         install translation in PATH/$qemu_suffix
1682   --docdir=PATH            install documentation in PATH/$qemu_suffix
1683   --bindir=PATH            install binaries in PATH
1684   --libdir=PATH            install libraries in PATH
1685   --libexecdir=PATH        install helper binaries in PATH
1686   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1687   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1688   --firmwarepath=PATH      search PATH for firmware files
1689   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1690   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1691   --with-pkgversion=VERS   use specified string as sub-version of the package
1692   --enable-debug           enable common debug build options
1693   --enable-sanitizers      enable default sanitizers
1694   --enable-tsan            enable thread sanitizer
1695   --disable-strip          disable stripping binaries
1696   --disable-werror         disable compilation abort on warning
1697   --disable-stack-protector disable compiler-provided stack protection
1698   --audio-drv-list=LIST    set audio drivers list:
1699                            Available drivers: $audio_possible_drivers
1700   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1701   --block-drv-rw-whitelist=L
1702                            set block driver read-write whitelist
1703                            (affects only QEMU, not qemu-img)
1704   --block-drv-ro-whitelist=L
1705                            set block driver read-only whitelist
1706                            (affects only QEMU, not qemu-img)
1707   --enable-trace-backends=B Set trace backend
1708                            Available backends: $trace_backend_list
1709   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1710                            Default:trace-<pid>
1711   --disable-slirp          disable SLIRP userspace network connectivity
1712   --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)
1713   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1714   --oss-lib                path to OSS library
1715   --cpu=CPU                Build for host CPU [$cpu]
1716   --with-coroutine=BACKEND coroutine backend. Supported options:
1717                            ucontext, sigaltstack, windows
1718   --enable-gcov            enable test coverage analysis with gcov
1719   --disable-blobs          disable installing provided firmware blobs
1720   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1721   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1722   --tls-priority           default TLS protocol/cipher priority string
1723   --enable-gprof           QEMU profiling with gprof
1724   --enable-profiler        profiler support
1725   --enable-debug-stack-usage
1726                            track the maximum stack usage of stacks created by qemu_alloc_stack
1727   --enable-plugins
1728                            enable plugins via shared library loading
1729   --disable-containers     don't use containers for cross-building
1730   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1731
1732 Optional features, enabled with --enable-FEATURE and
1733 disabled with --disable-FEATURE, default is enabled if available:
1734
1735   system          all system emulation targets
1736   user            supported user emulation targets
1737   linux-user      all linux usermode emulation targets
1738   bsd-user        all BSD usermode emulation targets
1739   docs            build documentation
1740   guest-agent     build the QEMU Guest Agent
1741   guest-agent-msi build guest agent Windows MSI installation package
1742   pie             Position Independent Executables
1743   modules         modules support (non-Windows)
1744   module-upgrades try to load modules from alternate paths for upgrades
1745   debug-tcg       TCG debugging (default is disabled)
1746   debug-info      debugging information
1747   sparse          sparse checker
1748   safe-stack      SafeStack Stack Smash Protection. Depends on
1749                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1750
1751   gnutls          GNUTLS cryptography support
1752   nettle          nettle cryptography support
1753   gcrypt          libgcrypt cryptography support
1754   auth-pam        PAM access control
1755   sdl             SDL UI
1756   sdl-image       SDL Image support for icons
1757   gtk             gtk UI
1758   vte             vte support for the gtk UI
1759   curses          curses UI
1760   iconv           font glyph conversion support
1761   vnc             VNC UI support
1762   vnc-sasl        SASL encryption for VNC server
1763   vnc-jpeg        JPEG lossy compression for VNC server
1764   vnc-png         PNG compression for VNC server
1765   cocoa           Cocoa UI (Mac OS X only)
1766   virtfs          VirtFS
1767   virtiofsd       build virtiofs daemon (virtiofsd)
1768   libudev         Use libudev to enumerate host devices
1769   mpath           Multipath persistent reservation passthrough
1770   xen             xen backend driver support
1771   xen-pci-passthrough    PCI passthrough support for Xen
1772   brlapi          BrlAPI (Braile)
1773   curl            curl connectivity
1774   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1775   fdt             fdt device tree
1776   kvm             KVM acceleration support
1777   hax             HAX acceleration support
1778   hvf             Hypervisor.framework acceleration support
1779   whpx            Windows Hypervisor Platform acceleration support
1780   rdma            Enable RDMA-based migration
1781   pvrdma          Enable PVRDMA support
1782   vde             support for vde network
1783   netmap          support for netmap network
1784   linux-aio       Linux AIO support
1785   linux-io-uring  Linux io_uring support
1786   cap-ng          libcap-ng support
1787   attr            attr and xattr support
1788   vhost-net       vhost-net kernel acceleration support
1789   vhost-vsock     virtio sockets device support
1790   vhost-scsi      vhost-scsi kernel target support
1791   vhost-crypto    vhost-user-crypto backend support
1792   vhost-kernel    vhost kernel backend support
1793   vhost-user      vhost-user backend support
1794   vhost-vdpa      vhost-vdpa kernel backend support
1795   spice           spice
1796   rbd             rados block device (rbd)
1797   libiscsi        iscsi support
1798   libnfs          nfs support
1799   smartcard       smartcard support (libcacard)
1800   u2f             U2F support (u2f-emu)
1801   libusb          libusb (for usb passthrough)
1802   live-block-migration   Block migration in the main migration stream
1803   usb-redir       usb network redirection support
1804   lzo             support of lzo compression library
1805   snappy          support of snappy compression library
1806   bzip2           support of bzip2 compression library
1807                   (for reading bzip2-compressed dmg images)
1808   lzfse           support of lzfse compression library
1809                   (for reading lzfse-compressed dmg images)
1810   zstd            support for zstd compression library
1811                   (for migration compression and qcow2 cluster compression)
1812   seccomp         seccomp support
1813   coroutine-pool  coroutine freelist (better performance)
1814   glusterfs       GlusterFS backend
1815   tpm             TPM support
1816   libssh          ssh block device support
1817   numa            libnuma support
1818   libxml2         for Parallels image format
1819   tcmalloc        tcmalloc support
1820   jemalloc        jemalloc support
1821   avx2            AVX2 optimization support
1822   avx512f         AVX512F optimization support
1823   replication     replication support
1824   opengl          opengl support
1825   virglrenderer   virgl rendering support
1826   xfsctl          xfsctl support
1827   qom-cast-debug  cast debugging support
1828   tools           build qemu-io, qemu-nbd and qemu-img tools
1829   bochs           bochs image format support
1830   cloop           cloop image format support
1831   dmg             dmg image format support
1832   qcow1           qcow v1 image format support
1833   vdi             vdi image format support
1834   vvfat           vvfat image format support
1835   qed             qed image format support
1836   parallels       parallels image format support
1837   sheepdog        sheepdog block driver support (deprecated)
1838   crypto-afalg    Linux AF_ALG crypto backend driver
1839   capstone        capstone disassembler support
1840   debug-mutex     mutex debugging support
1841   libpmem         libpmem support
1842   xkbcommon       xkbcommon support
1843   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1844   libdaxctl       libdaxctl support
1845
1846 NOTE: The object files are built at the place where configure is launched
1847 EOF
1848 exit 0
1849 fi
1850
1851 # Remove old dependency files to make sure that they get properly regenerated
1852 rm -f */config-devices.mak.d
1853
1854 if test -z "$python"
1855 then
1856     error_exit "Python not found. Use --python=/path/to/python"
1857 fi
1858
1859 # Note that if the Python conditional here evaluates True we will exit
1860 # with status 1 which is a shell 'false' value.
1861 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1862   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1863       "Use --python=/path/to/python to specify a supported Python."
1864 fi
1865
1866 # Preserve python version since some functionality is dependent on it
1867 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)
1868
1869 # Suppress writing compiled files
1870 python="$python -B"
1871
1872 if test -z "$meson"; then
1873     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.55.3; then
1874         meson=meson
1875     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
1876         meson=git
1877     elif test -e "${source_path}/meson/meson.py" ; then
1878         meson=internal
1879     else
1880         if test "$explicit_python" = yes; then
1881             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1882         else
1883             error_exit "Meson not found.  Use --meson=/path/to/meson"
1884         fi
1885     fi
1886 else
1887     # Meson uses its own Python interpreter to invoke other Python scripts,
1888     # but the user wants to use the one they specified with --python.
1889     #
1890     # We do not want to override the distro Python interpreter (and sometimes
1891     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1892     # just require --meson=git|internal together with --python.
1893     if test "$explicit_python" = yes; then
1894         case "$meson" in
1895             git | internal) ;;
1896             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1897         esac
1898     fi
1899 fi
1900
1901 if test "$meson" = git; then
1902     git_submodules="${git_submodules} meson"
1903 fi
1904
1905 case "$meson" in
1906     git | internal)
1907         if ! $python -c 'import pkg_resources' > /dev/null 2>&1; then
1908             error_exit "Python setuptools not found"
1909         fi
1910         meson="$python ${source_path}/meson/meson.py"
1911         ;;
1912     *) meson=$(command -v "$meson") ;;
1913 esac
1914
1915 # Probe for ninja
1916
1917 if test -z "$ninja"; then
1918     for c in ninja ninja-build samu; do
1919         if has $c; then
1920             ninja=$(command -v "$c")
1921             break
1922         fi
1923     done
1924     if test -z "$ninja"; then
1925       error_exit "Cannot find Ninja"
1926     fi
1927 fi
1928
1929 # Check that the C compiler works. Doing this here before testing
1930 # the host CPU ensures that we had a valid CC to autodetect the
1931 # $cpu var (and we should bail right here if that's not the case).
1932 # It also allows the help message to be printed without a CC.
1933 write_c_skeleton;
1934 if compile_object ; then
1935   : C compiler works ok
1936 else
1937     error_exit "\"$cc\" either does not exist or does not work"
1938 fi
1939 if ! compile_prog ; then
1940     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1941 fi
1942
1943 # Consult white-list to determine whether to enable werror
1944 # by default.  Only enable by default for git builds
1945 if test -z "$werror" ; then
1946     if test -e "$source_path/.git" && \
1947         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1948         werror="yes"
1949     else
1950         werror="no"
1951     fi
1952 fi
1953
1954 if test "$bogus_os" = "yes"; then
1955     # Now that we know that we're not printing the help and that
1956     # the compiler works (so the results of the check_defines we used
1957     # to identify the OS are reliable), if we didn't recognize the
1958     # host OS we should stop now.
1959     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1960 fi
1961
1962 # Check whether the compiler matches our minimum requirements:
1963 cat > $TMPC << EOF
1964 #if defined(__clang_major__) && defined(__clang_minor__)
1965 # ifdef __apple_build_version__
1966 #  if __clang_major__ < 5 || (__clang_major__ == 5 && __clang_minor__ < 1)
1967 #   error You need at least XCode Clang v5.1 to compile QEMU
1968 #  endif
1969 # else
1970 #  if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 4)
1971 #   error You need at least Clang v3.4 to compile QEMU
1972 #  endif
1973 # endif
1974 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1975 # if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
1976 #  error You need at least GCC v4.8 to compile QEMU
1977 # endif
1978 #else
1979 # error You either need GCC or Clang to compiler QEMU
1980 #endif
1981 int main (void) { return 0; }
1982 EOF
1983 if ! compile_prog "" "" ; then
1984     error_exit "You need at least GCC v4.8 or Clang v3.4 (or XCode Clang v5.1)"
1985 fi
1986
1987 # Accumulate -Wfoo and -Wno-bar separately.
1988 # We will list all of the enable flags first, and the disable flags second.
1989 # Note that we do not add -Werror, because that would enable it for all
1990 # configure tests. If a configure test failed due to -Werror this would
1991 # just silently disable some features, so it's too error prone.
1992
1993 warn_flags=
1994 add_to warn_flags -Wold-style-declaration
1995 add_to warn_flags -Wold-style-definition
1996 add_to warn_flags -Wtype-limits
1997 add_to warn_flags -Wformat-security
1998 add_to warn_flags -Wformat-y2k
1999 add_to warn_flags -Winit-self
2000 add_to warn_flags -Wignored-qualifiers
2001 add_to warn_flags -Wempty-body
2002 add_to warn_flags -Wnested-externs
2003 add_to warn_flags -Wendif-labels
2004 add_to warn_flags -Wexpansion-to-defined
2005
2006 nowarn_flags=
2007 add_to nowarn_flags -Wno-initializer-overrides
2008 add_to nowarn_flags -Wno-missing-include-dirs
2009 add_to nowarn_flags -Wno-shift-negative-value
2010 add_to nowarn_flags -Wno-string-plus-int
2011 add_to nowarn_flags -Wno-typedef-redefinition
2012 add_to nowarn_flags -Wno-tautological-type-limit-compare
2013 add_to nowarn_flags -Wno-psabi
2014
2015 gcc_flags="$warn_flags $nowarn_flags"
2016
2017 cc_has_warning_flag() {
2018     write_c_skeleton;
2019
2020     # Use the positive sense of the flag when testing for -Wno-wombat
2021     # support (gcc will happily accept the -Wno- form of unknown
2022     # warning options).
2023     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2024     compile_prog "-Werror $optflag" ""
2025 }
2026
2027 for flag in $gcc_flags; do
2028     if cc_has_warning_flag $flag ; then
2029         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2030     fi
2031 done
2032
2033 if test "$stack_protector" != "no"; then
2034   cat > $TMPC << EOF
2035 int main(int argc, char *argv[])
2036 {
2037     char arr[64], *p = arr, *c = argv[0];
2038     while (*c) {
2039         *p++ = *c++;
2040     }
2041     return 0;
2042 }
2043 EOF
2044   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2045   sp_on=0
2046   for flag in $gcc_flags; do
2047     # We need to check both a compile and a link, since some compiler
2048     # setups fail only on a .c->.o compile and some only at link time
2049     if compile_object "-Werror $flag" &&
2050        compile_prog "-Werror $flag" ""; then
2051       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2052       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2053       sp_on=1
2054       break
2055     fi
2056   done
2057   if test "$stack_protector" = yes; then
2058     if test $sp_on = 0; then
2059       error_exit "Stack protector not supported"
2060     fi
2061   fi
2062 fi
2063
2064 # Disable -Wmissing-braces on older compilers that warn even for
2065 # the "universal" C zero initializer {0}.
2066 cat > $TMPC << EOF
2067 struct {
2068   int a[2];
2069 } x = {0};
2070 EOF
2071 if compile_object "-Werror" "" ; then
2072   :
2073 else
2074   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2075 fi
2076
2077 # Our module code doesn't support Windows
2078 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2079   error_exit "Modules are not available for Windows"
2080 fi
2081
2082 # module_upgrades is only reasonable if modules are enabled
2083 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2084   error_exit "Can't enable module-upgrades as Modules are not enabled"
2085 fi
2086
2087 # Static linking is not possible with modules or PIE
2088 if test "$static" = "yes" ; then
2089   if test "$modules" = "yes" ; then
2090     error_exit "static and modules are mutually incompatible"
2091   fi
2092 fi
2093
2094 # Unconditional check for compiler __thread support
2095   cat > $TMPC << EOF
2096 static __thread int tls_var;
2097 int main(void) { return tls_var; }
2098 EOF
2099
2100 if ! compile_prog "-Werror" "" ; then
2101     error_exit "Your compiler does not support the __thread specifier for " \
2102         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2103 fi
2104
2105 cat > $TMPC << EOF
2106
2107 #ifdef __linux__
2108 #  define THREAD __thread
2109 #else
2110 #  define THREAD
2111 #endif
2112 static THREAD int tls_var;
2113 int main(void) { return tls_var; }
2114 EOF
2115
2116 # Check we support --no-pie first; we will need this for building ROMs.
2117 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2118   CFLAGS_NOPIE="-fno-pie"
2119   LDFLAGS_NOPIE="-no-pie"
2120 fi
2121
2122 if test "$static" = "yes"; then
2123   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
2124     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2125     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
2126     pie="yes"
2127   elif test "$pie" = "yes"; then
2128     error_exit "-static-pie not available due to missing toolchain support"
2129   else
2130     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
2131     pie="no"
2132   fi
2133 elif test "$pie" = "no"; then
2134   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
2135   CONFIGURE_LDFLAGS="$LDFLAGS_NOPIE $CONFIGURE_LDFLAGS"
2136 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2137   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2138   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
2139   pie="yes"
2140 elif test "$pie" = "yes"; then
2141   error_exit "PIE not available due to missing toolchain support"
2142 else
2143   echo "Disabling PIE due to missing toolchain support"
2144   pie="no"
2145 fi
2146
2147 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2148 # The combination is known as "full relro", because .got.plt is read-only too.
2149 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2150   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2151 fi
2152
2153 ##########################################
2154 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2155 # use i686 as default anyway, but for those that don't, an explicit
2156 # specification is necessary
2157
2158 if test "$cpu" = "i386"; then
2159   cat > $TMPC << EOF
2160 static int sfaa(int *ptr)
2161 {
2162   return __sync_fetch_and_and(ptr, 0);
2163 }
2164
2165 int main(void)
2166 {
2167   int val = 42;
2168   val = __sync_val_compare_and_swap(&val, 0, 1);
2169   sfaa(&val);
2170   return val;
2171 }
2172 EOF
2173   if ! compile_prog "" "" ; then
2174     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2175   fi
2176 fi
2177
2178 #########################################
2179 # Solaris specific configure tool chain decisions
2180
2181 if test "$solaris" = "yes" ; then
2182   if has ar; then
2183     :
2184   else
2185     if test -f /usr/ccs/bin/ar ; then
2186       error_exit "No path includes ar" \
2187           "Add /usr/ccs/bin to your path and rerun configure"
2188     fi
2189     error_exit "No path includes ar"
2190   fi
2191 fi
2192
2193 if test -z "${target_list+xxx}" ; then
2194     default_targets=yes
2195     for target in $default_target_list; do
2196         target_list="$target_list $target"
2197     done
2198     target_list="${target_list# }"
2199 else
2200     default_targets=no
2201     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2202     for target in $target_list; do
2203         # Check that we recognised the target name; this allows a more
2204         # friendly error message than if we let it fall through.
2205         case " $default_target_list " in
2206             *" $target "*)
2207                 ;;
2208             *)
2209                 error_exit "Unknown target name '$target'"
2210                 ;;
2211         esac
2212     done
2213 fi
2214
2215 for target in $target_list; do
2216     # if a deprecated target is enabled we note it here
2217     if echo "$deprecated_targets_list" | grep -q "$target"; then
2218         add_to deprecated_features $target
2219     fi
2220 done
2221
2222 # see if system emulation was really requested
2223 case " $target_list " in
2224   *"-softmmu "*) softmmu=yes
2225   ;;
2226   *) softmmu=no
2227   ;;
2228 esac
2229
2230 feature_not_found() {
2231   feature=$1
2232   remedy=$2
2233
2234   error_exit "User requested feature $feature" \
2235       "configure was not able to find it." \
2236       "$remedy"
2237 }
2238
2239 # ---
2240 # big/little endian test
2241 cat > $TMPC << EOF
2242 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2243 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2244 extern int foo(short *, short *);
2245 int main(int argc, char *argv[]) {
2246     return foo(big_endian, little_endian);
2247 }
2248 EOF
2249
2250 if compile_object ; then
2251     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2252         bigendian="yes"
2253     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2254         bigendian="no"
2255     else
2256         echo big/little test failed
2257     fi
2258 else
2259     echo big/little test failed
2260 fi
2261
2262 ##########################################
2263 # system tools
2264 if test -z "$want_tools"; then
2265     if test "$softmmu" = "no"; then
2266         want_tools=no
2267     else
2268         want_tools=yes
2269     fi
2270 fi
2271
2272 ##########################################
2273 # cocoa implies not SDL or GTK
2274 # (the cocoa UI code currently assumes it is always the active UI
2275 # and doesn't interact well with other UI frontend code)
2276 if test "$cocoa" = "enabled"; then
2277     if test "$sdl" = "enabled"; then
2278         error_exit "Cocoa and SDL UIs cannot both be enabled at once"
2279     fi
2280     if test "$gtk" = "yes"; then
2281         error_exit "Cocoa and GTK UIs cannot both be enabled at once"
2282     fi
2283     gtk=no
2284     sdl=disabled
2285 fi
2286
2287 # Some versions of Mac OS X incorrectly define SIZE_MAX
2288 cat > $TMPC << EOF
2289 #include <stdint.h>
2290 #include <stdio.h>
2291 int main(int argc, char *argv[]) {
2292     return printf("%zu", SIZE_MAX);
2293 }
2294 EOF
2295 have_broken_size_max=no
2296 if ! compile_object -Werror ; then
2297     have_broken_size_max=yes
2298 fi
2299
2300 ##########################################
2301 # L2TPV3 probe
2302
2303 cat > $TMPC <<EOF
2304 #include <sys/socket.h>
2305 #include <linux/ip.h>
2306 int main(void) { return sizeof(struct mmsghdr); }
2307 EOF
2308 if compile_prog "" "" ; then
2309   l2tpv3=yes
2310 else
2311   l2tpv3=no
2312 fi
2313
2314 if check_include "pty.h" ; then
2315   pty_h=yes
2316 else
2317   pty_h=no
2318 fi
2319
2320 cat > $TMPC <<EOF
2321 #include <sys/mman.h>
2322 int main(int argc, char *argv[]) {
2323     return mlockall(MCL_FUTURE);
2324 }
2325 EOF
2326 if compile_prog "" "" ; then
2327   have_mlockall=yes
2328 else
2329   have_mlockall=no
2330 fi
2331
2332 #########################################
2333 # vhost interdependencies and host support
2334
2335 # vhost backends
2336 test "$vhost_user" = "" && vhost_user=yes
2337 if test "$vhost_user" = "yes" && test "$mingw32" = "yes"; then
2338   error_exit "vhost-user isn't available on win32"
2339 fi
2340 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2341 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2342   error_exit "vhost-vdpa is only available on Linux"
2343 fi
2344 test "$vhost_kernel" = "" && vhost_kernel=$linux
2345 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2346   error_exit "vhost-kernel is only available on Linux"
2347 fi
2348
2349 # vhost-kernel devices
2350 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2351 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2352   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2353 fi
2354 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2355 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2356   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2357 fi
2358
2359 # vhost-user backends
2360 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2361 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2362   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2363 fi
2364 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2365 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2366   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2367 fi
2368 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2369 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2370   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2371 fi
2372 #vhost-vdpa backends
2373 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2374 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2375   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2376 fi
2377
2378 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
2379 if test "$vhost_net" = ""; then
2380   test "$vhost_net_user" = "yes" && vhost_net=yes
2381   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
2382   test "$vhost_kernel" = "yes" && vhost_net=yes
2383 fi
2384
2385 ##########################################
2386 # pkg-config probe
2387
2388 if ! has "$pkg_config_exe"; then
2389   error_exit "pkg-config binary '$pkg_config_exe' not found"
2390 fi
2391
2392 ##########################################
2393 # NPTL probe
2394
2395 if test "$linux_user" = "yes"; then
2396   cat > $TMPC <<EOF
2397 #include <sched.h>
2398 #include <linux/futex.h>
2399 int main(void) {
2400 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2401 #error bork
2402 #endif
2403   return 0;
2404 }
2405 EOF
2406   if ! compile_object ; then
2407     feature_not_found "nptl" "Install glibc and linux kernel headers."
2408   fi
2409 fi
2410
2411 ##########################################
2412 # lzo check
2413
2414 if test "$lzo" != "no" ; then
2415     cat > $TMPC << EOF
2416 #include <lzo/lzo1x.h>
2417 int main(void) { lzo_version(); return 0; }
2418 EOF
2419     if compile_prog "" "-llzo2" ; then
2420         lzo_libs="-llzo2"
2421         lzo="yes"
2422     else
2423         if test "$lzo" = "yes"; then
2424             feature_not_found "liblzo2" "Install liblzo2 devel"
2425         fi
2426         lzo="no"
2427     fi
2428 fi
2429
2430 ##########################################
2431 # snappy check
2432
2433 if test "$snappy" != "no" ; then
2434     cat > $TMPC << EOF
2435 #include <snappy-c.h>
2436 int main(void) { snappy_max_compressed_length(4096); return 0; }
2437 EOF
2438     if compile_prog "" "-lsnappy" ; then
2439         snappy_libs='-lsnappy'
2440         snappy="yes"
2441     else
2442         if test "$snappy" = "yes"; then
2443             feature_not_found "libsnappy" "Install libsnappy devel"
2444         fi
2445         snappy="no"
2446     fi
2447 fi
2448
2449 ##########################################
2450 # bzip2 check
2451
2452 if test "$bzip2" != "no" ; then
2453     cat > $TMPC << EOF
2454 #include <bzlib.h>
2455 int main(void) { BZ2_bzlibVersion(); return 0; }
2456 EOF
2457     if compile_prog "" "-lbz2" ; then
2458         bzip2="yes"
2459     else
2460         if test "$bzip2" = "yes"; then
2461             feature_not_found "libbzip2" "Install libbzip2 devel"
2462         fi
2463         bzip2="no"
2464     fi
2465 fi
2466
2467 ##########################################
2468 # lzfse check
2469
2470 if test "$lzfse" != "no" ; then
2471     cat > $TMPC << EOF
2472 #include <lzfse.h>
2473 int main(void) { lzfse_decode_scratch_size(); return 0; }
2474 EOF
2475     if compile_prog "" "-llzfse" ; then
2476         lzfse="yes"
2477     else
2478         if test "$lzfse" = "yes"; then
2479             feature_not_found "lzfse" "Install lzfse devel"
2480         fi
2481         lzfse="no"
2482     fi
2483 fi
2484
2485 ##########################################
2486 # zstd check
2487
2488 if test "$zstd" != "no" ; then
2489     libzstd_minver="1.4.0"
2490     if $pkg_config --atleast-version=$libzstd_minver libzstd ; then
2491         zstd_cflags="$($pkg_config --cflags libzstd)"
2492         zstd_libs="$($pkg_config --libs libzstd)"
2493         zstd="yes"
2494     else
2495         if test "$zstd" = "yes" ; then
2496             feature_not_found "libzstd" "Install libzstd devel"
2497         fi
2498         zstd="no"
2499     fi
2500 fi
2501
2502 ##########################################
2503 # libseccomp check
2504
2505 if test "$seccomp" != "no" ; then
2506     libseccomp_minver="2.3.0"
2507     if $pkg_config --atleast-version=$libseccomp_minver libseccomp ; then
2508         seccomp_cflags="$($pkg_config --cflags libseccomp)"
2509         seccomp_libs="$($pkg_config --libs libseccomp)"
2510         seccomp="yes"
2511     else
2512         if test "$seccomp" = "yes" ; then
2513             feature_not_found "libseccomp" \
2514                  "Install libseccomp devel >= $libseccomp_minver"
2515         fi
2516         seccomp="no"
2517     fi
2518 fi
2519
2520 ##########################################
2521 # xen probe
2522
2523 if test "$xen" != "disabled" ; then
2524   # Check whether Xen library path is specified via --extra-ldflags to avoid
2525   # overriding this setting with pkg-config output. If not, try pkg-config
2526   # to obtain all needed flags.
2527
2528   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2529      $pkg_config --exists xencontrol ; then
2530     xen_ctrl_version="$(printf '%d%02d%02d' \
2531       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2532     xen=enabled
2533     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
2534     xen_pc="$xen_pc xenevtchn xendevicemodel"
2535     if $pkg_config --exists xentoolcore; then
2536       xen_pc="$xen_pc xentoolcore"
2537     fi
2538     xen_cflags="$($pkg_config --cflags $xen_pc)"
2539     xen_libs="$($pkg_config --libs $xen_pc)"
2540   else
2541
2542     xen_libs="-lxenstore -lxenctrl"
2543     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2544
2545     # First we test whether Xen headers and libraries are available.
2546     # If no, we are done and there is no Xen support.
2547     # If yes, more tests are run to detect the Xen version.
2548
2549     # Xen (any)
2550     cat > $TMPC <<EOF
2551 #include <xenctrl.h>
2552 int main(void) {
2553   return 0;
2554 }
2555 EOF
2556     if ! compile_prog "" "$xen_libs" ; then
2557       # Xen not found
2558       if test "$xen" = "enabled" ; then
2559         feature_not_found "xen" "Install xen devel"
2560       fi
2561       xen=disabled
2562
2563     # Xen unstable
2564     elif
2565         cat > $TMPC <<EOF &&
2566 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2567 #define __XEN_TOOLS__
2568 #include <xendevicemodel.h>
2569 #include <xenforeignmemory.h>
2570 int main(void) {
2571   xendevicemodel_handle *xd;
2572   xenforeignmemory_handle *xfmem;
2573
2574   xd = xendevicemodel_open(0, 0);
2575   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2576
2577   xfmem = xenforeignmemory_open(0, 0);
2578   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2579
2580   return 0;
2581 }
2582 EOF
2583         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2584       then
2585       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2586       xen_ctrl_version=41100
2587       xen=enabled
2588     elif
2589         cat > $TMPC <<EOF &&
2590 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2591 #include <xenforeignmemory.h>
2592 #include <xentoolcore.h>
2593 int main(void) {
2594   xenforeignmemory_handle *xfmem;
2595
2596   xfmem = xenforeignmemory_open(0, 0);
2597   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2598   xentoolcore_restrict_all(0);
2599
2600   return 0;
2601 }
2602 EOF
2603         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2604       then
2605       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2606       xen_ctrl_version=41000
2607       xen=enabled
2608     elif
2609         cat > $TMPC <<EOF &&
2610 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2611 #define __XEN_TOOLS__
2612 #include <xendevicemodel.h>
2613 int main(void) {
2614   xendevicemodel_handle *xd;
2615
2616   xd = xendevicemodel_open(0, 0);
2617   xendevicemodel_close(xd);
2618
2619   return 0;
2620 }
2621 EOF
2622         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2623       then
2624       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2625       xen_ctrl_version=40900
2626       xen=enabled
2627     elif
2628         cat > $TMPC <<EOF &&
2629 /*
2630  * If we have stable libs the we don't want the libxc compat
2631  * layers, regardless of what CFLAGS we may have been given.
2632  *
2633  * Also, check if xengnttab_grant_copy_segment_t is defined and
2634  * grant copy operation is implemented.
2635  */
2636 #undef XC_WANT_COMPAT_EVTCHN_API
2637 #undef XC_WANT_COMPAT_GNTTAB_API
2638 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2639 #include <xenctrl.h>
2640 #include <xenstore.h>
2641 #include <xenevtchn.h>
2642 #include <xengnttab.h>
2643 #include <xenforeignmemory.h>
2644 #include <stdint.h>
2645 #include <xen/hvm/hvm_info_table.h>
2646 #if !defined(HVM_MAX_VCPUS)
2647 # error HVM_MAX_VCPUS not defined
2648 #endif
2649 int main(void) {
2650   xc_interface *xc = NULL;
2651   xenforeignmemory_handle *xfmem;
2652   xenevtchn_handle *xe;
2653   xengnttab_handle *xg;
2654   xengnttab_grant_copy_segment_t* seg = NULL;
2655
2656   xs_daemon_open();
2657
2658   xc = xc_interface_open(0, 0, 0);
2659   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2660   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2661   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2662   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2663
2664   xfmem = xenforeignmemory_open(0, 0);
2665   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2666
2667   xe = xenevtchn_open(0, 0);
2668   xenevtchn_fd(xe);
2669
2670   xg = xengnttab_open(0, 0);
2671   xengnttab_grant_copy(xg, 0, seg);
2672
2673   return 0;
2674 }
2675 EOF
2676         compile_prog "" "$xen_libs $xen_stable_libs"
2677       then
2678       xen_ctrl_version=40800
2679       xen=enabled
2680     elif
2681         cat > $TMPC <<EOF &&
2682 /*
2683  * If we have stable libs the we don't want the libxc compat
2684  * layers, regardless of what CFLAGS we may have been given.
2685  */
2686 #undef XC_WANT_COMPAT_EVTCHN_API
2687 #undef XC_WANT_COMPAT_GNTTAB_API
2688 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2689 #include <xenctrl.h>
2690 #include <xenstore.h>
2691 #include <xenevtchn.h>
2692 #include <xengnttab.h>
2693 #include <xenforeignmemory.h>
2694 #include <stdint.h>
2695 #include <xen/hvm/hvm_info_table.h>
2696 #if !defined(HVM_MAX_VCPUS)
2697 # error HVM_MAX_VCPUS not defined
2698 #endif
2699 int main(void) {
2700   xc_interface *xc = NULL;
2701   xenforeignmemory_handle *xfmem;
2702   xenevtchn_handle *xe;
2703   xengnttab_handle *xg;
2704
2705   xs_daemon_open();
2706
2707   xc = xc_interface_open(0, 0, 0);
2708   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2709   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2710   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2711   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2712
2713   xfmem = xenforeignmemory_open(0, 0);
2714   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2715
2716   xe = xenevtchn_open(0, 0);
2717   xenevtchn_fd(xe);
2718
2719   xg = xengnttab_open(0, 0);
2720   xengnttab_map_grant_ref(xg, 0, 0, 0);
2721
2722   return 0;
2723 }
2724 EOF
2725         compile_prog "" "$xen_libs $xen_stable_libs"
2726       then
2727       xen_ctrl_version=40701
2728       xen=enabled
2729
2730     # Xen 4.6
2731     elif
2732         cat > $TMPC <<EOF &&
2733 #include <xenctrl.h>
2734 #include <xenstore.h>
2735 #include <stdint.h>
2736 #include <xen/hvm/hvm_info_table.h>
2737 #if !defined(HVM_MAX_VCPUS)
2738 # error HVM_MAX_VCPUS not defined
2739 #endif
2740 int main(void) {
2741   xc_interface *xc;
2742   xs_daemon_open();
2743   xc = xc_interface_open(0, 0, 0);
2744   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2745   xc_gnttab_open(NULL, 0);
2746   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2747   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2748   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2749   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2750   return 0;
2751 }
2752 EOF
2753         compile_prog "" "$xen_libs"
2754       then
2755       xen_ctrl_version=40600
2756       xen=enabled
2757
2758     # Xen 4.5
2759     elif
2760         cat > $TMPC <<EOF &&
2761 #include <xenctrl.h>
2762 #include <xenstore.h>
2763 #include <stdint.h>
2764 #include <xen/hvm/hvm_info_table.h>
2765 #if !defined(HVM_MAX_VCPUS)
2766 # error HVM_MAX_VCPUS not defined
2767 #endif
2768 int main(void) {
2769   xc_interface *xc;
2770   xs_daemon_open();
2771   xc = xc_interface_open(0, 0, 0);
2772   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2773   xc_gnttab_open(NULL, 0);
2774   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2775   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2776   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2777   return 0;
2778 }
2779 EOF
2780         compile_prog "" "$xen_libs"
2781       then
2782       xen_ctrl_version=40500
2783       xen=enabled
2784
2785     elif
2786         cat > $TMPC <<EOF &&
2787 #include <xenctrl.h>
2788 #include <xenstore.h>
2789 #include <stdint.h>
2790 #include <xen/hvm/hvm_info_table.h>
2791 #if !defined(HVM_MAX_VCPUS)
2792 # error HVM_MAX_VCPUS not defined
2793 #endif
2794 int main(void) {
2795   xc_interface *xc;
2796   xs_daemon_open();
2797   xc = xc_interface_open(0, 0, 0);
2798   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2799   xc_gnttab_open(NULL, 0);
2800   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2801   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2802   return 0;
2803 }
2804 EOF
2805         compile_prog "" "$xen_libs"
2806       then
2807       xen_ctrl_version=40200
2808       xen=enabled
2809
2810     else
2811       if test "$xen" = "enabled" ; then
2812         feature_not_found "xen (unsupported version)" \
2813                           "Install a supported xen (xen 4.2 or newer)"
2814       fi
2815       xen=disabled
2816     fi
2817
2818     if test "$xen" = enabled; then
2819       if test $xen_ctrl_version -ge 40701  ; then
2820         xen_libs="$xen_libs $xen_stable_libs "
2821       fi
2822     fi
2823   fi
2824 fi
2825
2826 if test "$xen_pci_passthrough" != "disabled"; then
2827   if test "$xen" = "enabled" && test "$linux" = "yes"; then
2828     xen_pci_passthrough=enabled
2829   else
2830     if test "$xen_pci_passthrough" = "enabled"; then
2831       error_exit "User requested feature Xen PCI Passthrough" \
2832           " but this feature requires /sys from Linux"
2833     fi
2834     xen_pci_passthrough=disabled
2835   fi
2836 fi
2837
2838 ##########################################
2839 # gettext probe
2840 if test "$gettext" != "false" ; then
2841   if has xgettext; then
2842     gettext=true
2843   else
2844     if test "$gettext" = "true" ; then
2845       feature_not_found "gettext" "Install xgettext binary"
2846     fi
2847     gettext=false
2848   fi
2849 fi
2850
2851 ##########################################
2852 # X11 probe
2853 if $pkg_config --exists "x11"; then
2854     have_x11=yes
2855     x11_cflags=$($pkg_config --cflags x11)
2856     x11_libs=$($pkg_config --libs x11)
2857 fi
2858
2859 ##########################################
2860 # GTK probe
2861
2862 if test "$gtk" != "no"; then
2863     gtkpackage="gtk+-3.0"
2864     gtkx11package="gtk+-x11-3.0"
2865     gtkversion="3.22.0"
2866     if $pkg_config --exists "$gtkpackage >= $gtkversion"; then
2867         gtk_cflags=$($pkg_config --cflags $gtkpackage)
2868         gtk_libs=$($pkg_config --libs $gtkpackage)
2869         gtk_version=$($pkg_config --modversion $gtkpackage)
2870         if $pkg_config --exists "$gtkx11package >= $gtkversion"; then
2871             need_x11=yes
2872             gtk_cflags="$gtk_cflags $x11_cflags"
2873             gtk_libs="$gtk_libs $x11_libs"
2874         fi
2875         gtk="yes"
2876     elif test "$gtk" = "yes"; then
2877         feature_not_found "gtk" "Install gtk3-devel"
2878     else
2879         gtk="no"
2880     fi
2881 fi
2882
2883
2884 ##########################################
2885 # GNUTLS probe
2886
2887 if test "$gnutls" != "no"; then
2888     pass="no"
2889     if $pkg_config --exists "gnutls >= 3.1.18"; then
2890         gnutls_cflags=$($pkg_config --cflags gnutls)
2891         gnutls_libs=$($pkg_config --libs gnutls)
2892         # Packaging for the static libraries is not always correct.
2893         # At least ubuntu 18.04 ships only shared libraries.
2894         write_c_skeleton
2895         if compile_prog "" "$gnutls_libs" ; then
2896             pass="yes"
2897         fi
2898     fi
2899     if test "$pass" = "no" && test "$gnutls" = "yes"; then
2900         feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
2901     else
2902         gnutls="$pass"
2903     fi
2904 fi
2905
2906
2907 # If user didn't give a --disable/enable-gcrypt flag,
2908 # then mark as disabled if user requested nettle
2909 # explicitly
2910 if test -z "$gcrypt"
2911 then
2912     if test "$nettle" = "yes"
2913     then
2914         gcrypt="no"
2915     fi
2916 fi
2917
2918 # If user didn't give a --disable/enable-nettle flag,
2919 # then mark as disabled if user requested gcrypt
2920 # explicitly
2921 if test -z "$nettle"
2922 then
2923     if test "$gcrypt" = "yes"
2924     then
2925         nettle="no"
2926     fi
2927 fi
2928
2929 has_libgcrypt() {
2930     if ! has "libgcrypt-config"
2931     then
2932         return 1
2933     fi
2934
2935     if test -n "$cross_prefix"
2936     then
2937         host=$(libgcrypt-config --host)
2938         if test "$host-" != $cross_prefix
2939         then
2940             return 1
2941         fi
2942     fi
2943
2944     maj=`libgcrypt-config --version | awk -F . '{print $1}'`
2945     min=`libgcrypt-config --version | awk -F . '{print $2}'`
2946
2947     if test $maj != 1 || test $min -lt 5
2948     then
2949        return 1
2950     fi
2951
2952     return 0
2953 }
2954
2955
2956 if test "$nettle" != "no"; then
2957     pass="no"
2958     if $pkg_config --exists "nettle >= 2.7.1"; then
2959         nettle_cflags=$($pkg_config --cflags nettle)
2960         nettle_libs=$($pkg_config --libs nettle)
2961         nettle_version=$($pkg_config --modversion nettle)
2962         # Link test to make sure the given libraries work (e.g for static).
2963         write_c_skeleton
2964         if compile_prog "" "$nettle_libs" ; then
2965             if test -z "$gcrypt"; then
2966                gcrypt="no"
2967             fi
2968             pass="yes"
2969         fi
2970     fi
2971     if test "$pass" = "yes"
2972     then
2973         cat > $TMPC << EOF
2974 #include <nettle/xts.h>
2975 int main(void) {
2976   return 0;
2977 }
2978 EOF
2979         if compile_prog "$nettle_cflags" "$nettle_libs" ; then
2980             nettle_xts=yes
2981             qemu_private_xts=no
2982         fi
2983     fi
2984     if test "$pass" = "no" && test "$nettle" = "yes"; then
2985         feature_not_found "nettle" "Install nettle devel >= 2.7.1"
2986     else
2987         nettle="$pass"
2988     fi
2989 fi
2990
2991 if test "$gcrypt" != "no"; then
2992     pass="no"
2993     if has_libgcrypt; then
2994         gcrypt_cflags=$(libgcrypt-config --cflags)
2995         gcrypt_libs=$(libgcrypt-config --libs)
2996         # Debian has removed -lgpg-error from libgcrypt-config
2997         # as it "spreads unnecessary dependencies" which in
2998         # turn breaks static builds...
2999         if test "$static" = "yes"
3000         then
3001             gcrypt_libs="$gcrypt_libs -lgpg-error"
3002         fi
3003
3004         # Link test to make sure the given libraries work (e.g for static).
3005         write_c_skeleton
3006         if compile_prog "" "$gcrypt_libs" ; then
3007             pass="yes"
3008         fi
3009     fi
3010     if test "$pass" = "yes"; then
3011         gcrypt="yes"
3012         cat > $TMPC << EOF
3013 #include <gcrypt.h>
3014 int main(void) {
3015   gcry_mac_hd_t handle;
3016   gcry_mac_open(&handle, GCRY_MAC_HMAC_MD5,
3017                 GCRY_MAC_FLAG_SECURE, NULL);
3018   return 0;
3019 }
3020 EOF
3021         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3022             gcrypt_hmac=yes
3023         fi
3024         cat > $TMPC << EOF
3025 #include <gcrypt.h>
3026 int main(void) {
3027   gcry_cipher_hd_t handle;
3028   gcry_cipher_open(&handle, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_XTS, 0);
3029   return 0;
3030 }
3031 EOF
3032         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3033             gcrypt_xts=yes
3034             qemu_private_xts=no
3035         fi
3036     elif test "$gcrypt" = "yes"; then
3037         feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
3038     else
3039         gcrypt="no"
3040     fi
3041 fi
3042
3043
3044 if test "$gcrypt" = "yes" && test "$nettle" = "yes"
3045 then
3046     error_exit "Only one of gcrypt & nettle can be enabled"
3047 fi
3048
3049 ##########################################
3050 # libtasn1 - only for the TLS creds/session test suite
3051
3052 tasn1=yes
3053 tasn1_cflags=""
3054 tasn1_libs=""
3055 if $pkg_config --exists "libtasn1"; then
3056     tasn1_cflags=$($pkg_config --cflags libtasn1)
3057     tasn1_libs=$($pkg_config --libs libtasn1)
3058 else
3059     tasn1=no
3060 fi
3061
3062
3063 ##########################################
3064 # PAM probe
3065
3066 if test "$auth_pam" != "no"; then
3067     cat > $TMPC <<EOF
3068 #include <security/pam_appl.h>
3069 #include <stdio.h>
3070 int main(void) {
3071    const char *service_name = "qemu";
3072    const char *user = "frank";
3073    const struct pam_conv pam_conv = { 0 };
3074    pam_handle_t *pamh = NULL;
3075    pam_start(service_name, user, &pam_conv, &pamh);
3076    return 0;
3077 }
3078 EOF
3079     if compile_prog "" "-lpam" ; then
3080         auth_pam=yes
3081     else
3082         if test "$auth_pam" = "yes"; then
3083             feature_not_found "PAM" "Install PAM development package"
3084         else
3085             auth_pam=no
3086         fi
3087     fi
3088 fi
3089
3090 ##########################################
3091 # getifaddrs (for tests/test-io-channel-socket )
3092
3093 have_ifaddrs_h=yes
3094 if ! check_include "ifaddrs.h" ; then
3095   have_ifaddrs_h=no
3096 fi
3097
3098 #########################################
3099 # libdrm check
3100 have_drm_h=no
3101 if check_include "libdrm/drm.h" ; then
3102     have_drm_h=yes
3103 fi
3104
3105 #########################################
3106 # sys/signal.h check
3107 have_sys_signal_h=no
3108 if check_include "sys/signal.h" ; then
3109   have_sys_signal_h=yes
3110 fi
3111
3112 ##########################################
3113 # VTE probe
3114
3115 if test "$vte" != "no"; then
3116     vteminversion="0.32.0"
3117     if $pkg_config --exists "vte-2.91"; then
3118       vtepackage="vte-2.91"
3119     else
3120       vtepackage="vte-2.90"
3121     fi
3122     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
3123         vte_cflags=$($pkg_config --cflags $vtepackage)
3124         vte_libs=$($pkg_config --libs $vtepackage)
3125         vteversion=$($pkg_config --modversion $vtepackage)
3126         vte="yes"
3127     elif test "$vte" = "yes"; then
3128         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
3129     else
3130         vte="no"
3131     fi
3132 fi
3133
3134 ##########################################
3135 # RDMA needs OpenFabrics libraries
3136 if test "$rdma" != "no" ; then
3137   cat > $TMPC <<EOF
3138 #include <rdma/rdma_cma.h>
3139 int main(void) { return 0; }
3140 EOF
3141   rdma_libs="-lrdmacm -libverbs -libumad"
3142   if compile_prog "" "$rdma_libs" ; then
3143     rdma="yes"
3144   else
3145     if test "$rdma" = "yes" ; then
3146         error_exit \
3147             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
3148             " Your options:" \
3149             "  (1) Fast: Install infiniband packages (devel) from your distro." \
3150             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
3151             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
3152     fi
3153     rdma="no"
3154   fi
3155 fi
3156
3157 ##########################################
3158 # PVRDMA detection
3159
3160 cat > $TMPC <<EOF &&
3161 #include <sys/mman.h>
3162
3163 int
3164 main(void)
3165 {
3166     char buf = 0;
3167     void *addr = &buf;
3168     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3169
3170     return 0;
3171 }
3172 EOF
3173
3174 if test "$rdma" = "yes" ; then
3175     case "$pvrdma" in
3176     "")
3177         if compile_prog "" ""; then
3178             pvrdma="yes"
3179         else
3180             pvrdma="no"
3181         fi
3182         ;;
3183     "yes")
3184         if ! compile_prog "" ""; then
3185             error_exit "PVRDMA is not supported since mremap is not implemented"
3186         fi
3187         pvrdma="yes"
3188         ;;
3189     "no")
3190         pvrdma="no"
3191         ;;
3192     esac
3193 else
3194     if test "$pvrdma" = "yes" ; then
3195         error_exit "PVRDMA requires rdma suppport"
3196     fi
3197     pvrdma="no"
3198 fi
3199
3200 # Let's see if enhanced reg_mr is supported
3201 if test "$pvrdma" = "yes" ; then
3202
3203 cat > $TMPC <<EOF &&
3204 #include <infiniband/verbs.h>
3205
3206 int
3207 main(void)
3208 {
3209     struct ibv_mr *mr;
3210     struct ibv_pd *pd = NULL;
3211     size_t length = 10;
3212     uint64_t iova = 0;
3213     int access = 0;
3214     void *addr = NULL;
3215
3216     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
3217
3218     ibv_dereg_mr(mr);
3219
3220     return 0;
3221 }
3222 EOF
3223     if ! compile_prog "" "-libverbs"; then
3224         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
3225     fi
3226 fi
3227
3228 ##########################################
3229 # xfsctl() probe, used for file-posix.c
3230 if test "$xfs" != "no" ; then
3231   cat > $TMPC << EOF
3232 #include <stddef.h>  /* NULL */
3233 #include <xfs/xfs.h>
3234 int main(void)
3235 {
3236     xfsctl(NULL, 0, 0, NULL);
3237     return 0;
3238 }
3239 EOF
3240   if compile_prog "" "" ; then
3241     xfs="yes"
3242   else
3243     if test "$xfs" = "yes" ; then
3244       feature_not_found "xfs" "Install xfsprogs/xfslibs devel"
3245     fi
3246     xfs=no
3247   fi
3248 fi
3249
3250 ##########################################
3251 # vde libraries probe
3252 if test "$vde" != "no" ; then
3253   vde_libs="-lvdeplug"
3254   cat > $TMPC << EOF
3255 #include <libvdeplug.h>
3256 int main(void)
3257 {
3258     struct vde_open_args a = {0, 0, 0};
3259     char s[] = "";
3260     vde_open(s, s, &a);
3261     return 0;
3262 }
3263 EOF
3264   if compile_prog "" "$vde_libs" ; then
3265     vde=yes
3266   else
3267     if test "$vde" = "yes" ; then
3268       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3269     fi
3270     vde=no
3271   fi
3272 fi
3273
3274 ##########################################
3275 # netmap support probe
3276 # Apart from looking for netmap headers, we make sure that the host API version
3277 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3278 # a minor/major version number. Minor new features will be marked with values up
3279 # to 15, and if something happens that requires a change to the backend we will
3280 # move above 15, submit the backend fixes and modify this two bounds.
3281 if test "$netmap" != "no" ; then
3282   cat > $TMPC << EOF
3283 #include <inttypes.h>
3284 #include <net/if.h>
3285 #include <net/netmap.h>
3286 #include <net/netmap_user.h>
3287 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3288 #error
3289 #endif
3290 int main(void) { return 0; }
3291 EOF
3292   if compile_prog "" "" ; then
3293     netmap=yes
3294   else
3295     if test "$netmap" = "yes" ; then
3296       feature_not_found "netmap"
3297     fi
3298     netmap=no
3299   fi
3300 fi
3301
3302 ##########################################
3303 # libcap-ng library probe
3304 if test "$cap_ng" != "no" ; then
3305   cap_libs="-lcap-ng"
3306   cat > $TMPC << EOF
3307 #include <cap-ng.h>
3308 int main(void)
3309 {
3310     capng_capability_to_name(CAPNG_EFFECTIVE);
3311     return 0;
3312 }
3313 EOF
3314   if compile_prog "" "$cap_libs" ; then
3315     cap_ng=yes
3316   else
3317     if test "$cap_ng" = "yes" ; then
3318       feature_not_found "cap_ng" "Install libcap-ng devel"
3319     fi
3320     cap_ng=no
3321   fi
3322 fi
3323
3324 ##########################################
3325 # Sound support libraries probe
3326
3327 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3328 for drv in $audio_drv_list; do
3329     case $drv in
3330     alsa | try-alsa)
3331     if $pkg_config alsa --exists; then
3332         alsa_libs=$($pkg_config alsa --libs)
3333         alsa_cflags=$($pkg_config alsa --cflags)
3334         alsa=yes
3335         if test "$drv" = "try-alsa"; then
3336             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3337         fi
3338     else
3339         if test "$drv" = "try-alsa"; then
3340             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3341         else
3342             error_exit "$drv check failed" \
3343                 "Make sure to have the $drv libs and headers installed."
3344         fi
3345     fi
3346     ;;
3347
3348     pa | try-pa)
3349     if $pkg_config libpulse --exists; then
3350         libpulse=yes
3351         pulse_libs=$($pkg_config libpulse --libs)
3352         pulse_cflags=$($pkg_config libpulse --cflags)
3353         if test "$drv" = "try-pa"; then
3354             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3355         fi
3356     else
3357         if test "$drv" = "try-pa"; then
3358             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3359         else
3360             error_exit "$drv check failed" \
3361                 "Make sure to have the $drv libs and headers installed."
3362         fi
3363     fi
3364     ;;
3365
3366     sdl)
3367     if test "$sdl" = "no"; then
3368         error_exit "sdl not found or disabled, can not use sdl audio driver"
3369     fi
3370     ;;
3371
3372     try-sdl)
3373     if test "$sdl" = "no"; then
3374         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3375     else
3376         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3377     fi
3378     ;;
3379
3380     coreaudio)
3381       coreaudio_libs="-framework CoreAudio"
3382     ;;
3383
3384     dsound)
3385       dsound_libs="-lole32 -ldxguid"
3386       audio_win_int="yes"
3387     ;;
3388
3389     oss)
3390       oss_libs="$oss_lib"
3391     ;;
3392
3393     jack | try-jack)
3394     if $pkg_config jack --exists; then
3395         libjack=yes
3396         jack_libs=$($pkg_config jack --libs)
3397         if test "$drv" = "try-jack"; then
3398             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3399         fi
3400     else
3401         if test "$drv" = "try-jack"; then
3402             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3403         else
3404             error_exit "$drv check failed" \
3405                 "Make sure to have the $drv libs and headers installed."
3406         fi
3407     fi
3408     ;;
3409
3410     *)
3411     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3412         error_exit "Unknown driver '$drv' selected" \
3413             "Possible drivers are: $audio_possible_drivers"
3414     }
3415     ;;
3416     esac
3417 done
3418
3419 ##########################################
3420 # BrlAPI probe
3421
3422 if test "$brlapi" != "no" ; then
3423   brlapi_libs="-lbrlapi"
3424   cat > $TMPC << EOF
3425 #include <brlapi.h>
3426 #include <stddef.h>
3427 int main( void ) { return brlapi__openConnection (NULL, NULL, NULL); }
3428 EOF
3429   if compile_prog "" "$brlapi_libs" ; then
3430     brlapi=yes
3431   else
3432     if test "$brlapi" = "yes" ; then
3433       feature_not_found "brlapi" "Install brlapi devel"
3434     fi
3435     brlapi=no
3436   fi
3437 fi
3438
3439 ##########################################
3440 # curl probe
3441 if test "$curl" != "no" ; then
3442   if $pkg_config libcurl --exists; then
3443     curlconfig="$pkg_config libcurl"
3444   else
3445     curlconfig=curl-config
3446   fi
3447   cat > $TMPC << EOF
3448 #include <curl/curl.h>
3449 int main(void) { curl_easy_init(); curl_multi_setopt(0, 0, 0); return 0; }
3450 EOF
3451   curl_cflags=$($curlconfig --cflags 2>/dev/null)
3452   curl_libs=$($curlconfig --libs 2>/dev/null)
3453   if compile_prog "$curl_cflags" "$curl_libs" ; then
3454     curl=yes
3455   else
3456     if test "$curl" = "yes" ; then
3457       feature_not_found "curl" "Install libcurl devel"
3458     fi
3459     curl=no
3460   fi
3461 fi # test "$curl"
3462
3463 ##########################################
3464 # glib support probe
3465
3466 glib_req_ver=2.48
3467 glib_modules=gthread-2.0
3468 if test "$modules" = yes; then
3469     glib_modules="$glib_modules gmodule-export-2.0"
3470 fi
3471 if test "$plugins" = yes; then
3472     glib_modules="$glib_modules gmodule-2.0"
3473 fi
3474
3475 for i in $glib_modules; do
3476     if $pkg_config --atleast-version=$glib_req_ver $i; then
3477         glib_cflags=$($pkg_config --cflags $i)
3478         glib_libs=$($pkg_config --libs $i)
3479     else
3480         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3481     fi
3482 done
3483
3484 # This workaround is required due to a bug in pkg-config file for glib as it
3485 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3486
3487 if test "$static" = yes && test "$mingw32" = yes; then
3488     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
3489 fi
3490
3491 if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3492     gio=yes
3493     gio_cflags=$($pkg_config --cflags gio-2.0)
3494     gio_libs=$($pkg_config --libs gio-2.0)
3495     gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3496     if [ ! -x "$gdbus_codegen" ]; then
3497         gdbus_codegen=
3498     fi
3499 else
3500     gio=no
3501 fi
3502
3503 if $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3504     gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3505     gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3506 fi
3507
3508 # Sanity check that the current size_t matches the
3509 # size that glib thinks it should be. This catches
3510 # problems on multi-arch where people try to build
3511 # 32-bit QEMU while pointing at 64-bit glib headers
3512 cat > $TMPC <<EOF
3513 #include <glib.h>
3514 #include <unistd.h>
3515
3516 #define QEMU_BUILD_BUG_ON(x) \
3517   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3518
3519 int main(void) {
3520    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3521    return 0;
3522 }
3523 EOF
3524
3525 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
3526     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3527                "You probably need to set PKG_CONFIG_LIBDIR"\
3528                "to point to the right pkg-config files for your"\
3529                "build target"
3530 fi
3531
3532 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3533 cat > $TMPC << EOF
3534 #include <glib.h>
3535 int main(void) { return 0; }
3536 EOF
3537 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3538     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3539         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3540         CONFIGURE_CFLAGS="-Wno-unknown-attributes $CONFIGURE_CFLAGS"
3541     fi
3542 fi
3543
3544 # Silence clang warnings triggered by glib < 2.57.2
3545 cat > $TMPC << EOF
3546 #include <glib.h>
3547 typedef struct Foo {
3548     int i;
3549 } Foo;
3550 static void foo_free(Foo *f)
3551 {
3552     g_free(f);
3553 }
3554 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3555 int main(void) { return 0; }
3556 EOF
3557 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3558     if cc_has_warning_flag "-Wno-unused-function"; then
3559         glib_cflags="$glib_cflags -Wno-unused-function"
3560         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
3561     fi
3562 fi
3563
3564 ##########################################
3565 # SHA command probe for modules
3566 if test "$modules" = yes; then
3567     shacmd_probe="sha1sum sha1 shasum"
3568     for c in $shacmd_probe; do
3569         if has $c; then
3570             shacmd="$c"
3571             break
3572         fi
3573     done
3574     if test "$shacmd" = ""; then
3575         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3576     fi
3577 fi
3578
3579 ##########################################
3580 # pthread probe
3581 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3582
3583 pthread=no
3584 cat > $TMPC << EOF
3585 #include <pthread.h>
3586 static void *f(void *p) { return NULL; }
3587 int main(void) {
3588   pthread_t thread;
3589   pthread_create(&thread, 0, f, 0);
3590   return 0;
3591 }
3592 EOF
3593 if compile_prog "" "" ; then
3594   pthread=yes
3595 else
3596   for pthread_lib in $PTHREADLIBS_LIST; do
3597     if compile_prog "" "$pthread_lib" ; then
3598       pthread=yes
3599       found=no
3600       for lib_entry in $LIBS; do
3601         if test "$lib_entry" = "$pthread_lib"; then
3602           found=yes
3603           break
3604         fi
3605       done
3606       if test "$found" = "no"; then
3607         LIBS="$pthread_lib $LIBS"
3608       fi
3609       break
3610     fi
3611   done
3612 fi
3613
3614 if test "$mingw32" != yes && test "$pthread" = no; then
3615   error_exit "pthread check failed" \
3616       "Make sure to have the pthread libs and headers installed."
3617 fi
3618
3619 # check for pthread_setname_np with thread id
3620 pthread_setname_np_w_tid=no
3621 cat > $TMPC << EOF
3622 #include <pthread.h>
3623
3624 static void *f(void *p) { return NULL; }
3625 int main(void)
3626 {
3627     pthread_t thread;
3628     pthread_create(&thread, 0, f, 0);
3629     pthread_setname_np(thread, "QEMU");
3630     return 0;
3631 }
3632 EOF
3633 if compile_prog "" "$pthread_lib" ; then
3634   pthread_setname_np_w_tid=yes
3635 fi
3636
3637 # check for pthread_setname_np without thread id
3638 pthread_setname_np_wo_tid=no
3639 cat > $TMPC << EOF
3640 #include <pthread.h>
3641
3642 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
3643 int main(void)
3644 {
3645     pthread_t thread;
3646     pthread_create(&thread, 0, f, 0);
3647     return 0;
3648 }
3649 EOF
3650 if compile_prog "" "$pthread_lib" ; then
3651   pthread_setname_np_wo_tid=yes
3652 fi
3653
3654 ##########################################
3655 # rbd probe
3656 if test "$rbd" != "no" ; then
3657   cat > $TMPC <<EOF
3658 #include <stdio.h>
3659 #include <rbd/librbd.h>
3660 int main(void) {
3661     rados_t cluster;
3662     rados_create(&cluster, NULL);
3663     return 0;
3664 }
3665 EOF
3666   rbd_libs="-lrbd -lrados"
3667   if compile_prog "" "$rbd_libs" ; then
3668     rbd=yes
3669   else
3670     if test "$rbd" = "yes" ; then
3671       feature_not_found "rados block device" "Install librbd/ceph devel"
3672     fi
3673     rbd=no
3674   fi
3675 fi
3676
3677 ##########################################
3678 # libssh probe
3679 if test "$libssh" != "no" ; then
3680   if $pkg_config --exists libssh; then
3681     libssh_cflags=$($pkg_config libssh --cflags)
3682     libssh_libs=$($pkg_config libssh --libs)
3683     libssh=yes
3684   else
3685     if test "$libssh" = "yes" ; then
3686       error_exit "libssh required for --enable-libssh"
3687     fi
3688     libssh=no
3689   fi
3690 fi
3691
3692 ##########################################
3693 # Check for libssh 0.8
3694 # This is done like this instead of using the LIBSSH_VERSION_* and
3695 # SSH_VERSION_* macros because some distributions in the past shipped
3696 # snapshots of the future 0.8 from Git, and those snapshots did not
3697 # have updated version numbers (still referring to 0.7.0).
3698
3699 if test "$libssh" = "yes"; then
3700   cat > $TMPC <<EOF
3701 #include <libssh/libssh.h>
3702 int main(void) { return ssh_get_server_publickey(NULL, NULL); }
3703 EOF
3704   if compile_prog "$libssh_cflags" "$libssh_libs"; then
3705     libssh_cflags="-DHAVE_LIBSSH_0_8 $libssh_cflags"
3706   fi
3707 fi
3708
3709 ##########################################
3710 # linux-aio probe
3711
3712 if test "$linux_aio" != "no" ; then
3713   cat > $TMPC <<EOF
3714 #include <libaio.h>
3715 #include <sys/eventfd.h>
3716 #include <stddef.h>
3717 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
3718 EOF
3719   if compile_prog "" "-laio" ; then
3720     linux_aio=yes
3721   else
3722     if test "$linux_aio" = "yes" ; then
3723       feature_not_found "linux AIO" "Install libaio devel"
3724     fi
3725     linux_aio=no
3726   fi
3727 fi
3728 ##########################################
3729 # linux-io-uring probe
3730
3731 if test "$linux_io_uring" != "no" ; then
3732   if $pkg_config liburing; then
3733     linux_io_uring_cflags=$($pkg_config --cflags liburing)
3734     linux_io_uring_libs=$($pkg_config --libs liburing)
3735     linux_io_uring=yes
3736   else
3737     if test "$linux_io_uring" = "yes" ; then
3738       feature_not_found "linux io_uring" "Install liburing devel"
3739     fi
3740     linux_io_uring=no
3741   fi
3742 fi
3743
3744 ##########################################
3745 # TPM emulation is only on POSIX
3746
3747 if test "$tpm" = ""; then
3748   if test "$mingw32" = "yes"; then
3749     tpm=no
3750   else
3751     tpm=yes
3752   fi
3753 elif test "$tpm" = "yes"; then
3754   if test "$mingw32" = "yes" ; then
3755     error_exit "TPM emulation only available on POSIX systems"
3756   fi
3757 fi
3758
3759 ##########################################
3760 # attr probe
3761
3762 libattr_libs=
3763 if test "$attr" != "no" ; then
3764   cat > $TMPC <<EOF
3765 #include <stdio.h>
3766 #include <sys/types.h>
3767 #ifdef CONFIG_LIBATTR
3768 #include <attr/xattr.h>
3769 #else
3770 #include <sys/xattr.h>
3771 #endif
3772 int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }
3773 EOF
3774   if compile_prog "" "" ; then
3775     attr=yes
3776   # Older distros have <attr/xattr.h>, and need -lattr:
3777   elif compile_prog "-DCONFIG_LIBATTR" "-lattr" ; then
3778     attr=yes
3779     libattr_libs="-lattr"
3780     libattr=yes
3781   else
3782     if test "$attr" = "yes" ; then
3783       feature_not_found "ATTR" "Install libc6 or libattr devel"
3784     fi
3785     attr=no
3786   fi
3787 fi
3788
3789 ##########################################
3790 # iovec probe
3791 cat > $TMPC <<EOF
3792 #include <sys/types.h>
3793 #include <sys/uio.h>
3794 #include <unistd.h>
3795 int main(void) { return sizeof(struct iovec); }
3796 EOF
3797 iovec=no
3798 if compile_prog "" "" ; then
3799   iovec=yes
3800 fi
3801
3802 ##########################################
3803 # preadv probe
3804 cat > $TMPC <<EOF
3805 #include <sys/types.h>
3806 #include <sys/uio.h>
3807 #include <unistd.h>
3808 int main(void) { return preadv(0, 0, 0, 0); }
3809 EOF
3810 preadv=no
3811 if compile_prog "" "" ; then
3812   preadv=yes
3813 fi
3814
3815 ##########################################
3816 # fdt probe
3817
3818 case "$fdt" in
3819   auto | enabled | internal)
3820     # Simpler to always update submodule, even if not needed.
3821     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
3822       git_submodules="${git_submodules} dtc"
3823     fi
3824     ;;
3825 esac
3826
3827 ##########################################
3828 # opengl probe (for sdl2, gtk, milkymist-tmu2)
3829
3830 gbm="no"
3831 if $pkg_config gbm; then
3832     gbm_cflags="$($pkg_config --cflags gbm)"
3833     gbm_libs="$($pkg_config --libs gbm)"
3834     gbm="yes"
3835 fi
3836
3837 if test "$opengl" != "no" ; then
3838   opengl_pkgs="epoxy gbm"
3839   if $pkg_config $opengl_pkgs; then
3840     opengl_cflags="$($pkg_config --cflags $opengl_pkgs)"
3841     opengl_libs="$($pkg_config --libs $opengl_pkgs)"
3842     opengl=yes
3843     if test "$gtk" = "yes" && $pkg_config --exists "$gtkpackage >= 3.16"; then
3844         gtk_gl="yes"
3845     fi
3846   else
3847     if test "$opengl" = "yes" ; then
3848       feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
3849     fi
3850     opengl_cflags=""
3851     opengl_libs=""
3852     opengl=no
3853   fi
3854 fi
3855
3856 if test "$opengl" = "yes"; then
3857   cat > $TMPC << EOF
3858 #include <epoxy/egl.h>
3859 #ifndef EGL_MESA_image_dma_buf_export
3860 # error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
3861 #endif
3862 int main(void) { return 0; }
3863 EOF
3864   if compile_prog "" "" ; then
3865     opengl_dmabuf=yes
3866   fi
3867 fi
3868
3869 if test "$opengl" = "yes" && test "$have_x11" = "yes"; then
3870   for target in $target_list; do
3871     case $target in
3872       lm32-softmmu) # milkymist-tmu2 requires X11 and OpenGL
3873         need_x11=yes
3874       ;;
3875     esac
3876   done
3877 fi
3878
3879 ##########################################
3880 # libxml2 probe
3881 if test "$libxml2" != "no" ; then
3882     if $pkg_config --exists libxml-2.0; then
3883         libxml2="yes"
3884         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
3885         libxml2_libs=$($pkg_config --libs libxml-2.0)
3886     else
3887         if test "$libxml2" = "yes"; then
3888             feature_not_found "libxml2" "Install libxml2 devel"
3889         fi
3890         libxml2="no"
3891     fi
3892 fi
3893
3894 ##########################################
3895 # glusterfs probe
3896 if test "$glusterfs" != "no" ; then
3897   if $pkg_config --atleast-version=3 glusterfs-api; then
3898     glusterfs="yes"
3899     glusterfs_cflags=$($pkg_config --cflags glusterfs-api)
3900     glusterfs_libs=$($pkg_config --libs glusterfs-api)
3901     if $pkg_config --atleast-version=4 glusterfs-api; then
3902       glusterfs_xlator_opt="yes"
3903     fi
3904     if $pkg_config --atleast-version=5 glusterfs-api; then
3905       glusterfs_discard="yes"
3906     fi
3907     if $pkg_config --atleast-version=6 glusterfs-api; then
3908       glusterfs_fallocate="yes"
3909       glusterfs_zerofill="yes"
3910     fi
3911     cat > $TMPC << EOF
3912 #include <glusterfs/api/glfs.h>
3913
3914 int
3915 main(void)
3916 {
3917         /* new glfs_ftruncate() passes two additional args */
3918         return glfs_ftruncate(NULL, 0, NULL, NULL);
3919 }
3920 EOF
3921     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
3922       glusterfs_ftruncate_has_stat="yes"
3923     fi
3924     cat > $TMPC << EOF
3925 #include <glusterfs/api/glfs.h>
3926
3927 /* new glfs_io_cbk() passes two additional glfs_stat structs */
3928 static void
3929 glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
3930 {}
3931
3932 int
3933 main(void)
3934 {
3935         glfs_io_cbk iocb = &glusterfs_iocb;
3936         iocb(NULL, 0 , NULL, NULL, NULL);
3937         return 0;
3938 }
3939 EOF
3940     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
3941       glusterfs_iocb_has_stat="yes"
3942     fi
3943   else
3944     if test "$glusterfs" = "yes" ; then
3945       feature_not_found "GlusterFS backend support" \
3946           "Install glusterfs-api devel >= 3"
3947     fi
3948     glusterfs="no"
3949   fi
3950 fi
3951
3952 # Check for inotify functions when we are building linux-user
3953 # emulator.  This is done because older glibc versions don't
3954 # have syscall stubs for these implemented.  In that case we
3955 # don't provide them even if kernel supports them.
3956 #
3957 inotify=no
3958 cat > $TMPC << EOF
3959 #include <sys/inotify.h>
3960
3961 int
3962 main(void)
3963 {
3964         /* try to start inotify */
3965         return inotify_init();
3966 }
3967 EOF
3968 if compile_prog "" "" ; then
3969   inotify=yes
3970 fi
3971
3972 inotify1=no
3973 cat > $TMPC << EOF
3974 #include <sys/inotify.h>
3975
3976 int
3977 main(void)
3978 {
3979     /* try to start inotify */
3980     return inotify_init1(0);
3981 }
3982 EOF
3983 if compile_prog "" "" ; then
3984   inotify1=yes
3985 fi
3986
3987 # check if pipe2 is there
3988 pipe2=no
3989 cat > $TMPC << EOF
3990 #include <unistd.h>
3991 #include <fcntl.h>
3992
3993 int main(void)
3994 {
3995     int pipefd[2];
3996     return pipe2(pipefd, O_CLOEXEC);
3997 }
3998 EOF
3999 if compile_prog "" "" ; then
4000   pipe2=yes
4001 fi
4002
4003 # check if accept4 is there
4004 accept4=no
4005 cat > $TMPC << EOF
4006 #include <sys/socket.h>
4007 #include <stddef.h>
4008
4009 int main(void)
4010 {
4011     accept4(0, NULL, NULL, SOCK_CLOEXEC);
4012     return 0;
4013 }
4014 EOF
4015 if compile_prog "" "" ; then
4016   accept4=yes
4017 fi
4018
4019 # check if tee/splice is there. vmsplice was added same time.
4020 splice=no
4021 cat > $TMPC << EOF
4022 #include <unistd.h>
4023 #include <fcntl.h>
4024 #include <limits.h>
4025
4026 int main(void)
4027 {
4028     int len, fd = 0;
4029     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
4030     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
4031     return 0;
4032 }
4033 EOF
4034 if compile_prog "" "" ; then
4035   splice=yes
4036 fi
4037
4038 ##########################################
4039 # libnuma probe
4040
4041 if test "$numa" != "no" ; then
4042   cat > $TMPC << EOF
4043 #include <numa.h>
4044 int main(void) { return numa_available(); }
4045 EOF
4046
4047   if compile_prog "" "-lnuma" ; then
4048     numa=yes
4049     numa_libs="-lnuma"
4050   else
4051     if test "$numa" = "yes" ; then
4052       feature_not_found "numa" "install numactl devel"
4053     fi
4054     numa=no
4055   fi
4056 fi
4057
4058 malloc=system
4059 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
4060     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
4061     exit 1
4062 elif test "$tcmalloc" = "yes" ; then
4063     malloc=tcmalloc
4064 elif test "$jemalloc" = "yes" ; then
4065     malloc=jemalloc
4066 fi
4067
4068 ##########################################
4069 # signalfd probe
4070 signalfd="no"
4071 cat > $TMPC << EOF
4072 #include <unistd.h>
4073 #include <sys/syscall.h>
4074 #include <signal.h>
4075 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
4076 EOF
4077
4078 if compile_prog "" "" ; then
4079   signalfd=yes
4080 fi
4081
4082 # check if optreset global is declared by <getopt.h>
4083 optreset="no"
4084 cat > $TMPC << EOF
4085 #include <getopt.h>
4086 int main(void) { return optreset; }
4087 EOF
4088
4089 if compile_prog "" "" ; then
4090   optreset=yes
4091 fi
4092
4093 # check if eventfd is supported
4094 eventfd=no
4095 cat > $TMPC << EOF
4096 #include <sys/eventfd.h>
4097
4098 int main(void)
4099 {
4100     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
4101 }
4102 EOF
4103 if compile_prog "" "" ; then
4104   eventfd=yes
4105 fi
4106
4107 # check if memfd is supported
4108 memfd=no
4109 cat > $TMPC << EOF
4110 #include <sys/mman.h>
4111
4112 int main(void)
4113 {
4114     return memfd_create("foo", MFD_ALLOW_SEALING);
4115 }
4116 EOF
4117 if compile_prog "" "" ; then
4118   memfd=yes
4119 fi
4120
4121 # check for usbfs
4122 have_usbfs=no
4123 if test "$linux_user" = "yes"; then
4124   cat > $TMPC << EOF
4125 #include <linux/usbdevice_fs.h>
4126
4127 #ifndef USBDEVFS_GET_CAPABILITIES
4128 #error "USBDEVFS_GET_CAPABILITIES undefined"
4129 #endif
4130
4131 #ifndef USBDEVFS_DISCONNECT_CLAIM
4132 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
4133 #endif
4134
4135 int main(void)
4136 {
4137     return 0;
4138 }
4139 EOF
4140   if compile_prog "" ""; then
4141     have_usbfs=yes
4142   fi
4143 fi
4144
4145 # check for fallocate
4146 fallocate=no
4147 cat > $TMPC << EOF
4148 #include <fcntl.h>
4149
4150 int main(void)
4151 {
4152     fallocate(0, 0, 0, 0);
4153     return 0;
4154 }
4155 EOF
4156 if compile_prog "" "" ; then
4157   fallocate=yes
4158 fi
4159
4160 # check for fallocate hole punching
4161 fallocate_punch_hole=no
4162 cat > $TMPC << EOF
4163 #include <fcntl.h>
4164 #include <linux/falloc.h>
4165
4166 int main(void)
4167 {
4168     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
4169     return 0;
4170 }
4171 EOF
4172 if compile_prog "" "" ; then
4173   fallocate_punch_hole=yes
4174 fi
4175
4176 # check that fallocate supports range zeroing inside the file
4177 fallocate_zero_range=no
4178 cat > $TMPC << EOF
4179 #include <fcntl.h>
4180 #include <linux/falloc.h>
4181
4182 int main(void)
4183 {
4184     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
4185     return 0;
4186 }
4187 EOF
4188 if compile_prog "" "" ; then
4189   fallocate_zero_range=yes
4190 fi
4191
4192 # check for posix_fallocate
4193 posix_fallocate=no
4194 cat > $TMPC << EOF
4195 #include <fcntl.h>
4196
4197 int main(void)
4198 {
4199     posix_fallocate(0, 0, 0);
4200     return 0;
4201 }
4202 EOF
4203 if compile_prog "" "" ; then
4204     posix_fallocate=yes
4205 fi
4206
4207 # check for sync_file_range
4208 sync_file_range=no
4209 cat > $TMPC << EOF
4210 #include <fcntl.h>
4211
4212 int main(void)
4213 {
4214     sync_file_range(0, 0, 0, 0);
4215     return 0;
4216 }
4217 EOF
4218 if compile_prog "" "" ; then
4219   sync_file_range=yes
4220 fi
4221
4222 # check for linux/fiemap.h and FS_IOC_FIEMAP
4223 fiemap=no
4224 cat > $TMPC << EOF
4225 #include <sys/ioctl.h>
4226 #include <linux/fs.h>
4227 #include <linux/fiemap.h>
4228
4229 int main(void)
4230 {
4231     ioctl(0, FS_IOC_FIEMAP, 0);
4232     return 0;
4233 }
4234 EOF
4235 if compile_prog "" "" ; then
4236   fiemap=yes
4237 fi
4238
4239 # check for dup3
4240 dup3=no
4241 cat > $TMPC << EOF
4242 #include <unistd.h>
4243
4244 int main(void)
4245 {
4246     dup3(0, 0, 0);
4247     return 0;
4248 }
4249 EOF
4250 if compile_prog "" "" ; then
4251   dup3=yes
4252 fi
4253
4254 # check for ppoll support
4255 ppoll=no
4256 cat > $TMPC << EOF
4257 #include <poll.h>
4258
4259 int main(void)
4260 {
4261     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
4262     ppoll(&pfd, 1, 0, 0);
4263     return 0;
4264 }
4265 EOF
4266 if compile_prog "" "" ; then
4267   ppoll=yes
4268 fi
4269
4270 # check for prctl(PR_SET_TIMERSLACK , ... ) support
4271 prctl_pr_set_timerslack=no
4272 cat > $TMPC << EOF
4273 #include <sys/prctl.h>
4274
4275 int main(void)
4276 {
4277     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
4278     return 0;
4279 }
4280 EOF
4281 if compile_prog "" "" ; then
4282   prctl_pr_set_timerslack=yes
4283 fi
4284
4285 # check for epoll support
4286 epoll=no
4287 cat > $TMPC << EOF
4288 #include <sys/epoll.h>
4289
4290 int main(void)
4291 {
4292     epoll_create(0);
4293     return 0;
4294 }
4295 EOF
4296 if compile_prog "" "" ; then
4297   epoll=yes
4298 fi
4299
4300 # epoll_create1 is a later addition
4301 # so we must check separately for its presence
4302 epoll_create1=no
4303 cat > $TMPC << EOF
4304 #include <sys/epoll.h>
4305
4306 int main(void)
4307 {
4308     /* Note that we use epoll_create1 as a value, not as
4309      * a function being called. This is necessary so that on
4310      * old SPARC glibc versions where the function was present in
4311      * the library but not declared in the header file we will
4312      * fail the configure check. (Otherwise we will get a compiler
4313      * warning but not an error, and will proceed to fail the
4314      * qemu compile where we compile with -Werror.)
4315      */
4316     return (int)(uintptr_t)&epoll_create1;
4317 }
4318 EOF
4319 if compile_prog "" "" ; then
4320   epoll_create1=yes
4321 fi
4322
4323 # check for sendfile support
4324 sendfile=no
4325 cat > $TMPC << EOF
4326 #include <sys/sendfile.h>
4327
4328 int main(void)
4329 {
4330     return sendfile(0, 0, 0, 0);
4331 }
4332 EOF
4333 if compile_prog "" "" ; then
4334   sendfile=yes
4335 fi
4336
4337 # check for timerfd support (glibc 2.8 and newer)
4338 timerfd=no
4339 cat > $TMPC << EOF
4340 #include <sys/timerfd.h>
4341
4342 int main(void)
4343 {
4344     return(timerfd_create(CLOCK_REALTIME, 0));
4345 }
4346 EOF
4347 if compile_prog "" "" ; then
4348   timerfd=yes
4349 fi
4350
4351 # check for setns and unshare support
4352 setns=no
4353 cat > $TMPC << EOF
4354 #include <sched.h>
4355
4356 int main(void)
4357 {
4358     int ret;
4359     ret = setns(0, 0);
4360     ret = unshare(0);
4361     return ret;
4362 }
4363 EOF
4364 if compile_prog "" "" ; then
4365   setns=yes
4366 fi
4367
4368 # clock_adjtime probe
4369 clock_adjtime=no
4370 cat > $TMPC <<EOF
4371 #include <time.h>
4372
4373 int main(void)
4374 {
4375     return clock_adjtime(0, 0);
4376 }
4377 EOF
4378 clock_adjtime=no
4379 if compile_prog "" "" ; then
4380   clock_adjtime=yes
4381 fi
4382
4383 # syncfs probe
4384 syncfs=no
4385 cat > $TMPC <<EOF
4386 #include <unistd.h>
4387
4388 int main(void)
4389 {
4390     return syncfs(0);
4391 }
4392 EOF
4393 syncfs=no
4394 if compile_prog "" "" ; then
4395   syncfs=yes
4396 fi
4397
4398 # check for kcov support (kernel must be 4.4+, compiled with certain options)
4399 kcov=no
4400 if check_include sys/kcov.h ; then
4401     kcov=yes
4402 fi
4403
4404 # check for btrfs filesystem support (kernel must be 3.9+)
4405 btrfs=no
4406 if check_include linux/btrfs.h ; then
4407     btrfs=yes
4408 fi
4409
4410 # Search for bswap_32 function
4411 byteswap_h=no
4412 cat > $TMPC << EOF
4413 #include <byteswap.h>
4414 int main(void) { return bswap_32(0); }
4415 EOF
4416 if compile_prog "" "" ; then
4417   byteswap_h=yes
4418 fi
4419
4420 # Search for bswap32 function
4421 bswap_h=no
4422 cat > $TMPC << EOF
4423 #include <sys/endian.h>
4424 #include <sys/types.h>
4425 #include <machine/bswap.h>
4426 int main(void) { return bswap32(0); }
4427 EOF
4428 if compile_prog "" "" ; then
4429   bswap_h=yes
4430 fi
4431
4432 ##########################################
4433 # Do we have libiscsi >= 1.9.0
4434 if test "$libiscsi" != "no" ; then
4435   if $pkg_config --atleast-version=1.9.0 libiscsi; then
4436     libiscsi="yes"
4437     libiscsi_cflags=$($pkg_config --cflags libiscsi)
4438     libiscsi_libs=$($pkg_config --libs libiscsi)
4439   else
4440     if test "$libiscsi" = "yes" ; then
4441       feature_not_found "libiscsi" "Install libiscsi >= 1.9.0"
4442     fi
4443     libiscsi="no"
4444   fi
4445 fi
4446
4447 ##########################################
4448 # Do we need librt
4449 # uClibc provides 2 versions of clock_gettime(), one with realtime
4450 # support and one without. This means that the clock_gettime() don't
4451 # need -lrt. We still need it for timer_create() so we check for this
4452 # function in addition.
4453 cat > $TMPC <<EOF
4454 #include <signal.h>
4455 #include <time.h>
4456 int main(void) {
4457   timer_create(CLOCK_REALTIME, NULL, NULL);
4458   return clock_gettime(CLOCK_REALTIME, NULL);
4459 }
4460 EOF
4461
4462 if compile_prog "" "" ; then
4463   :
4464 # we need pthread for static linking. use previous pthread test result
4465 elif compile_prog "" "$pthread_lib -lrt" ; then
4466   LIBS="$LIBS -lrt"
4467 fi
4468
4469 # Check whether we have openpty() in either libc or libutil
4470 cat > $TMPC << EOF
4471 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
4472 int main(void) { return openpty(0, 0, 0, 0, 0); }
4473 EOF
4474
4475 have_openpty="no"
4476 if compile_prog "" "" ; then
4477   have_openpty="yes"
4478 else
4479   if compile_prog "" "-lutil" ; then
4480     have_openpty="yes"
4481   fi
4482 fi
4483
4484 ##########################################
4485 # spice probe
4486 if test "$spice" != "no" ; then
4487   cat > $TMPC << EOF
4488 #include <spice.h>
4489 int main(void) { spice_server_new(); return 0; }
4490 EOF
4491   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
4492   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
4493   if $pkg_config --atleast-version=0.12.5 spice-server && \
4494      $pkg_config --atleast-version=0.12.3 spice-protocol && \
4495      compile_prog "$spice_cflags" "$spice_libs" ; then
4496     spice="yes"
4497   else
4498     if test "$spice" = "yes" ; then
4499       feature_not_found "spice" \
4500           "Install spice-server(>=0.12.5) and spice-protocol(>=0.12.3) devel"
4501     fi
4502     spice="no"
4503   fi
4504 fi
4505
4506 # check for smartcard support
4507 if test "$smartcard" != "no"; then
4508     if $pkg_config --atleast-version=2.5.1 libcacard; then
4509         libcacard_cflags=$($pkg_config --cflags libcacard)
4510         libcacard_libs=$($pkg_config --libs libcacard)
4511         smartcard="yes"
4512     else
4513         if test "$smartcard" = "yes"; then
4514             feature_not_found "smartcard" "Install libcacard devel"
4515         fi
4516         smartcard="no"
4517     fi
4518 fi
4519
4520 # check for libusb
4521 if test "$libusb" != "no" ; then
4522     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
4523         libusb="yes"
4524         libusb_cflags=$($pkg_config --cflags libusb-1.0)
4525         libusb_libs=$($pkg_config --libs libusb-1.0)
4526     else
4527         if test "$libusb" = "yes"; then
4528             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
4529         fi
4530         libusb="no"
4531     fi
4532 fi
4533
4534 # check for usbredirparser for usb network redirection support
4535 if test "$usb_redir" != "no" ; then
4536     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
4537         usb_redir="yes"
4538         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
4539         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
4540     else
4541         if test "$usb_redir" = "yes"; then
4542             feature_not_found "usb-redir" "Install usbredir devel"
4543         fi
4544         usb_redir="no"
4545     fi
4546 fi
4547
4548 ##########################################
4549 # check if we have VSS SDK headers for win
4550
4551 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4552         test "$vss_win32_sdk" != "no" ; then
4553   case "$vss_win32_sdk" in
4554     "")   vss_win32_include="-isystem $source_path" ;;
4555     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
4556           # handle path with spaces. So we symlink the headers into ".sdk/vss".
4557           vss_win32_include="-isystem $source_path/.sdk/vss"
4558           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
4559           ;;
4560     *)    vss_win32_include="-isystem $vss_win32_sdk"
4561   esac
4562   cat > $TMPC << EOF
4563 #define __MIDL_user_allocate_free_DEFINED__
4564 #include <inc/win2003/vss.h>
4565 int main(void) { return VSS_CTX_BACKUP; }
4566 EOF
4567   if compile_prog "$vss_win32_include" "" ; then
4568     guest_agent_with_vss="yes"
4569     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
4570     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
4571     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
4572   else
4573     if test "$vss_win32_sdk" != "" ; then
4574       echo "ERROR: Please download and install Microsoft VSS SDK:"
4575       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
4576       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
4577       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
4578       echo "ERROR: The headers are extracted in the directory \`inc'."
4579       feature_not_found "VSS support"
4580     fi
4581     guest_agent_with_vss="no"
4582   fi
4583 fi
4584
4585 ##########################################
4586 # lookup Windows platform SDK (if not specified)
4587 # The SDK is needed only to build .tlb (type library) file of guest agent
4588 # VSS provider from the source. It is usually unnecessary because the
4589 # pre-compiled .tlb file is included.
4590
4591 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4592         test "$guest_agent_with_vss" = "yes" ; then
4593   if test -z "$win_sdk"; then
4594     programfiles="$PROGRAMFILES"
4595     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
4596     if test -n "$programfiles"; then
4597       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
4598     else
4599       feature_not_found "Windows SDK"
4600     fi
4601   elif test "$win_sdk" = "no"; then
4602     win_sdk=""
4603   fi
4604 fi
4605
4606 ##########################################
4607 # check if mingw environment provides a recent ntddscsi.h
4608 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
4609   cat > $TMPC << EOF
4610 #include <windows.h>
4611 #include <ntddscsi.h>
4612 int main(void) {
4613 #if !defined(IOCTL_SCSI_GET_ADDRESS)
4614 #error Missing required ioctl definitions
4615 #endif
4616   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
4617   return addr.Lun;
4618 }
4619 EOF
4620   if compile_prog "" "" ; then
4621     guest_agent_ntddscsi=yes
4622     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
4623   fi
4624 fi
4625
4626 ##########################################
4627 # virgl renderer probe
4628
4629 if test "$virglrenderer" != "no" ; then
4630   cat > $TMPC << EOF
4631 #include <virglrenderer.h>
4632 int main(void) { virgl_renderer_poll(); return 0; }
4633 EOF
4634   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
4635   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
4636   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
4637   if $pkg_config virglrenderer >/dev/null 2>&1 && \
4638      compile_prog "$virgl_cflags" "$virgl_libs" ; then
4639     virglrenderer="yes"
4640   else
4641     if test "$virglrenderer" = "yes" ; then
4642       feature_not_found "virglrenderer"
4643     fi
4644     virglrenderer="no"
4645   fi
4646 fi
4647
4648 ##########################################
4649 # capstone
4650
4651 case "$capstone" in
4652   auto | enabled | internal)
4653     # Simpler to always update submodule, even if not needed.
4654     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
4655       git_submodules="${git_submodules} capstone"
4656     fi
4657     ;;
4658 esac
4659
4660 ##########################################
4661 # check if we have fdatasync
4662
4663 fdatasync=no
4664 cat > $TMPC << EOF
4665 #include <unistd.h>
4666 int main(void) {
4667 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
4668 return fdatasync(0);
4669 #else
4670 #error Not supported
4671 #endif
4672 }
4673 EOF
4674 if compile_prog "" "" ; then
4675     fdatasync=yes
4676 fi
4677
4678 ##########################################
4679 # check if we have madvise
4680
4681 madvise=no
4682 cat > $TMPC << EOF
4683 #include <sys/types.h>
4684 #include <sys/mman.h>
4685 #include <stddef.h>
4686 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
4687 EOF
4688 if compile_prog "" "" ; then
4689     madvise=yes
4690 fi
4691
4692 ##########################################
4693 # check if we have posix_madvise
4694
4695 posix_madvise=no
4696 cat > $TMPC << EOF
4697 #include <sys/mman.h>
4698 #include <stddef.h>
4699 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
4700 EOF
4701 if compile_prog "" "" ; then
4702     posix_madvise=yes
4703 fi
4704
4705 ##########################################
4706 # check if we have posix_memalign()
4707
4708 posix_memalign=no
4709 cat > $TMPC << EOF
4710 #include <stdlib.h>
4711 int main(void) {
4712     void *p;
4713     return posix_memalign(&p, 8, 8);
4714 }
4715 EOF
4716 if compile_prog "" "" ; then
4717     posix_memalign=yes
4718 fi
4719
4720 ##########################################
4721 # check if we have posix_syslog
4722
4723 posix_syslog=no
4724 cat > $TMPC << EOF
4725 #include <syslog.h>
4726 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
4727 EOF
4728 if compile_prog "" "" ; then
4729     posix_syslog=yes
4730 fi
4731
4732 ##########################################
4733 # check if we have sem_timedwait
4734
4735 sem_timedwait=no
4736 cat > $TMPC << EOF
4737 #include <semaphore.h>
4738 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
4739 EOF
4740 if compile_prog "" "" ; then
4741     sem_timedwait=yes
4742 fi
4743
4744 ##########################################
4745 # check if we have strchrnul
4746
4747 strchrnul=no
4748 cat > $TMPC << EOF
4749 #include <string.h>
4750 int main(void);
4751 // Use a haystack that the compiler shouldn't be able to constant fold
4752 char *haystack = (char*)&main;
4753 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
4754 EOF
4755 if compile_prog "" "" ; then
4756     strchrnul=yes
4757 fi
4758
4759 #########################################
4760 # check if we have st_atim
4761
4762 st_atim=no
4763 cat > $TMPC << EOF
4764 #include <sys/stat.h>
4765 #include <stddef.h>
4766 int main(void) { return offsetof(struct stat, st_atim); }
4767 EOF
4768 if compile_prog "" "" ; then
4769     st_atim=yes
4770 fi
4771
4772 ##########################################
4773 # check if trace backend exists
4774
4775 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
4776 if test "$?" -ne 0 ; then
4777   error_exit "invalid trace backends" \
4778       "Please choose supported trace backends."
4779 fi
4780
4781 ##########################################
4782 # For 'ust' backend, test if ust headers are present
4783 if have_backend "ust"; then
4784   cat > $TMPC << EOF
4785 #include <lttng/tracepoint.h>
4786 int main(void) { return 0; }
4787 EOF
4788   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
4789     if $pkg_config lttng-ust --exists; then
4790       lttng_ust_libs=$($pkg_config --libs lttng-ust)
4791     else
4792       lttng_ust_libs="-llttng-ust -ldl"
4793     fi
4794     if $pkg_config liburcu-bp --exists; then
4795       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
4796     else
4797       urcu_bp_libs="-lurcu-bp"
4798     fi
4799   else
4800     error_exit "Trace backend 'ust' missing lttng-ust header files"
4801   fi
4802 fi
4803
4804 ##########################################
4805 # For 'dtrace' backend, test if 'dtrace' command is present
4806 if have_backend "dtrace"; then
4807   if ! has 'dtrace' ; then
4808     error_exit "dtrace command is not found in PATH $PATH"
4809   fi
4810   trace_backend_stap="no"
4811   if has 'stap' ; then
4812     trace_backend_stap="yes"
4813   fi
4814 fi
4815
4816 ##########################################
4817 # check and set a backend for coroutine
4818
4819 # We prefer ucontext, but it's not always possible. The fallback
4820 # is sigcontext. On Windows the only valid backend is the Windows
4821 # specific one.
4822
4823 ucontext_works=no
4824 if test "$darwin" != "yes"; then
4825   cat > $TMPC << EOF
4826 #include <ucontext.h>
4827 #ifdef __stub_makecontext
4828 #error Ignoring glibc stub makecontext which will always fail
4829 #endif
4830 int main(void) { makecontext(0, 0, 0); return 0; }
4831 EOF
4832   if compile_prog "" "" ; then
4833     ucontext_works=yes
4834   fi
4835 fi
4836
4837 if test "$coroutine" = ""; then
4838   if test "$mingw32" = "yes"; then
4839     coroutine=win32
4840   elif test "$ucontext_works" = "yes"; then
4841     coroutine=ucontext
4842   else
4843     coroutine=sigaltstack
4844   fi
4845 else
4846   case $coroutine in
4847   windows)
4848     if test "$mingw32" != "yes"; then
4849       error_exit "'windows' coroutine backend only valid for Windows"
4850     fi
4851     # Unfortunately the user visible backend name doesn't match the
4852     # coroutine-*.c filename for this case, so we have to adjust it here.
4853     coroutine=win32
4854     ;;
4855   ucontext)
4856     if test "$ucontext_works" != "yes"; then
4857       feature_not_found "ucontext"
4858     fi
4859     ;;
4860   sigaltstack)
4861     if test "$mingw32" = "yes"; then
4862       error_exit "only the 'windows' coroutine backend is valid for Windows"
4863     fi
4864     ;;
4865   *)
4866     error_exit "unknown coroutine backend $coroutine"
4867     ;;
4868   esac
4869 fi
4870
4871 if test "$coroutine_pool" = ""; then
4872   coroutine_pool=yes
4873 fi
4874
4875 if test "$debug_stack_usage" = "yes"; then
4876   if test "$coroutine_pool" = "yes"; then
4877     echo "WARN: disabling coroutine pool for stack usage debugging"
4878     coroutine_pool=no
4879   fi
4880 fi
4881
4882 ##################################################
4883 # SafeStack
4884
4885
4886 if test "$safe_stack" = "yes"; then
4887 cat > $TMPC << EOF
4888 int main(int argc, char *argv[])
4889 {
4890 #if ! __has_feature(safe_stack)
4891 #error SafeStack Disabled
4892 #endif
4893     return 0;
4894 }
4895 EOF
4896   flag="-fsanitize=safe-stack"
4897   # Check that safe-stack is supported and enabled.
4898   if compile_prog "-Werror $flag" "$flag"; then
4899     # Flag needed both at compilation and at linking
4900     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4901     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4902   else
4903     error_exit "SafeStack not supported by your compiler"
4904   fi
4905   if test "$coroutine" != "ucontext"; then
4906     error_exit "SafeStack is only supported by the coroutine backend ucontext"
4907   fi
4908 else
4909 cat > $TMPC << EOF
4910 int main(int argc, char *argv[])
4911 {
4912 #if defined(__has_feature)
4913 #if __has_feature(safe_stack)
4914 #error SafeStack Enabled
4915 #endif
4916 #endif
4917     return 0;
4918 }
4919 EOF
4920 if test "$safe_stack" = "no"; then
4921   # Make sure that safe-stack is disabled
4922   if ! compile_prog "-Werror" ""; then
4923     # SafeStack was already enabled, try to explicitly remove the feature
4924     flag="-fno-sanitize=safe-stack"
4925     if ! compile_prog "-Werror $flag" "$flag"; then
4926       error_exit "Configure cannot disable SafeStack"
4927     fi
4928     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4929     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4930   fi
4931 else # "$safe_stack" = ""
4932   # Set safe_stack to yes or no based on pre-existing flags
4933   if compile_prog "-Werror" ""; then
4934     safe_stack="no"
4935   else
4936     safe_stack="yes"
4937     if test "$coroutine" != "ucontext"; then
4938       error_exit "SafeStack is only supported by the coroutine backend ucontext"
4939     fi
4940   fi
4941 fi
4942 fi
4943
4944 ##########################################
4945 # check if we have open_by_handle_at
4946
4947 open_by_handle_at=no
4948 cat > $TMPC << EOF
4949 #include <fcntl.h>
4950 #if !defined(AT_EMPTY_PATH)
4951 # error missing definition
4952 #else
4953 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
4954 #endif
4955 EOF
4956 if compile_prog "" "" ; then
4957     open_by_handle_at=yes
4958 fi
4959
4960 ########################################
4961 # check if we have linux/magic.h
4962
4963 linux_magic_h=no
4964 cat > $TMPC << EOF
4965 #include <linux/magic.h>
4966 int main(void) {
4967   return 0;
4968 }
4969 EOF
4970 if compile_prog "" "" ; then
4971     linux_magic_h=yes
4972 fi
4973
4974 ########################################
4975 # check if we have valgrind/valgrind.h
4976
4977 valgrind_h=no
4978 cat > $TMPC << EOF
4979 #include <valgrind/valgrind.h>
4980 int main(void) {
4981   return 0;
4982 }
4983 EOF
4984 if compile_prog "" "" ; then
4985     valgrind_h=yes
4986 fi
4987
4988 ########################################
4989 # check if environ is declared
4990
4991 has_environ=no
4992 cat > $TMPC << EOF
4993 #include <unistd.h>
4994 int main(void) {
4995     environ = 0;
4996     return 0;
4997 }
4998 EOF
4999 if compile_prog "" "" ; then
5000     has_environ=yes
5001 fi
5002
5003 ########################################
5004 # check if cpuid.h is usable.
5005
5006 cat > $TMPC << EOF
5007 #include <cpuid.h>
5008 int main(void) {
5009     unsigned a, b, c, d;
5010     int max = __get_cpuid_max(0, 0);
5011
5012     if (max >= 1) {
5013         __cpuid(1, a, b, c, d);
5014     }
5015
5016     if (max >= 7) {
5017         __cpuid_count(7, 0, a, b, c, d);
5018     }
5019
5020     return 0;
5021 }
5022 EOF
5023 if compile_prog "" "" ; then
5024     cpuid_h=yes
5025 fi
5026
5027 ##########################################
5028 # avx2 optimization requirement check
5029 #
5030 # There is no point enabling this if cpuid.h is not usable,
5031 # since we won't be able to select the new routines.
5032
5033 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
5034   cat > $TMPC << EOF
5035 #pragma GCC push_options
5036 #pragma GCC target("avx2")
5037 #include <cpuid.h>
5038 #include <immintrin.h>
5039 static int bar(void *a) {
5040     __m256i x = *(__m256i *)a;
5041     return _mm256_testz_si256(x, x);
5042 }
5043 int main(int argc, char *argv[]) { return bar(argv[0]); }
5044 EOF
5045   if compile_object "" ; then
5046     avx2_opt="yes"
5047   else
5048     avx2_opt="no"
5049   fi
5050 fi
5051
5052 ##########################################
5053 # avx512f optimization requirement check
5054 #
5055 # There is no point enabling this if cpuid.h is not usable,
5056 # since we won't be able to select the new routines.
5057 # by default, it is turned off.
5058 # if user explicitly want to enable it, check environment
5059
5060 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
5061   cat > $TMPC << EOF
5062 #pragma GCC push_options
5063 #pragma GCC target("avx512f")
5064 #include <cpuid.h>
5065 #include <immintrin.h>
5066 static int bar(void *a) {
5067     __m512i x = *(__m512i *)a;
5068     return _mm512_test_epi64_mask(x, x);
5069 }
5070 int main(int argc, char *argv[])
5071 {
5072         return bar(argv[0]);
5073 }
5074 EOF
5075   if ! compile_object "" ; then
5076     avx512f_opt="no"
5077   fi
5078 else
5079   avx512f_opt="no"
5080 fi
5081
5082 ########################################
5083 # check if __[u]int128_t is usable.
5084
5085 int128=no
5086 cat > $TMPC << EOF
5087 __int128_t a;
5088 __uint128_t b;
5089 int main (void) {
5090   a = a + b;
5091   b = a * b;
5092   a = a * a;
5093   return 0;
5094 }
5095 EOF
5096 if compile_prog "" "" ; then
5097     int128=yes
5098 fi
5099
5100 #########################################
5101 # See if 128-bit atomic operations are supported.
5102
5103 atomic128=no
5104 if test "$int128" = "yes"; then
5105   cat > $TMPC << EOF
5106 int main(void)
5107 {
5108   unsigned __int128 x = 0, y = 0;
5109   y = __atomic_load_16(&x, 0);
5110   __atomic_store_16(&x, y, 0);
5111   __atomic_compare_exchange_16(&x, &y, x, 0, 0, 0);
5112   return 0;
5113 }
5114 EOF
5115   if compile_prog "" "" ; then
5116     atomic128=yes
5117   fi
5118 fi
5119
5120 cmpxchg128=no
5121 if test "$int128" = yes && test "$atomic128" = no; then
5122   cat > $TMPC << EOF
5123 int main(void)
5124 {
5125   unsigned __int128 x = 0, y = 0;
5126   __sync_val_compare_and_swap_16(&x, y, x);
5127   return 0;
5128 }
5129 EOF
5130   if compile_prog "" "" ; then
5131     cmpxchg128=yes
5132   fi
5133 fi
5134
5135 #########################################
5136 # See if 64-bit atomic operations are supported.
5137 # Note that without __atomic builtins, we can only
5138 # assume atomic loads/stores max at pointer size.
5139
5140 cat > $TMPC << EOF
5141 #include <stdint.h>
5142 int main(void)
5143 {
5144   uint64_t x = 0, y = 0;
5145 #ifdef __ATOMIC_RELAXED
5146   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
5147   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
5148   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
5149   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
5150   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
5151 #else
5152   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
5153   __sync_lock_test_and_set(&x, y);
5154   __sync_val_compare_and_swap(&x, y, 0);
5155   __sync_fetch_and_add(&x, y);
5156 #endif
5157   return 0;
5158 }
5159 EOF
5160 if compile_prog "" "" ; then
5161   atomic64=yes
5162 fi
5163
5164 #########################################
5165 # See if --dynamic-list is supported by the linker
5166 ld_dynamic_list="no"
5167 if test "$static" = "no" ; then
5168     cat > $TMPTXT <<EOF
5169 {
5170   foo;
5171 };
5172 EOF
5173
5174     cat > $TMPC <<EOF
5175 #include <stdio.h>
5176 void foo(void);
5177
5178 void foo(void)
5179 {
5180   printf("foo\n");
5181 }
5182
5183 int main(void)
5184 {
5185   foo();
5186   return 0;
5187 }
5188 EOF
5189
5190     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
5191         ld_dynamic_list="yes"
5192     fi
5193 fi
5194
5195 #########################################
5196 # See if -exported_symbols_list is supported by the linker
5197
5198 ld_exported_symbols_list="no"
5199 if test "$static" = "no" ; then
5200     cat > $TMPTXT <<EOF
5201   _foo
5202 EOF
5203
5204     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
5205         ld_exported_symbols_list="yes"
5206     fi
5207 fi
5208
5209 if  test "$plugins" = "yes" &&
5210     test "$ld_dynamic_list" = "no" &&
5211     test "$ld_exported_symbols_list" = "no" ; then
5212   error_exit \
5213       "Plugin support requires dynamic linking and specifying a set of symbols " \
5214       "that are exported to plugins. Unfortunately your linker doesn't " \
5215       "support the flag (--dynamic-list or -exported_symbols_list) used " \
5216       "for this purpose. You can't build with --static."
5217 fi
5218
5219 ########################################
5220 # See if __attribute__((alias)) is supported.
5221 # This false for Xcode 9, but has been remedied for Xcode 10.
5222 # Unfortunately, travis uses Xcode 9 by default.
5223
5224 attralias=no
5225 cat > $TMPC << EOF
5226 int x = 1;
5227 extern const int y __attribute__((alias("x")));
5228 int main(void) { return 0; }
5229 EOF
5230 if compile_prog "" "" ; then
5231     attralias=yes
5232 fi
5233
5234 ########################################
5235 # check if getauxval is available.
5236
5237 getauxval=no
5238 cat > $TMPC << EOF
5239 #include <sys/auxv.h>
5240 int main(void) {
5241   return getauxval(AT_HWCAP) == 0;
5242 }
5243 EOF
5244 if compile_prog "" "" ; then
5245     getauxval=yes
5246 fi
5247
5248 ########################################
5249 # check if ccache is interfering with
5250 # semantic analysis of macros
5251
5252 unset CCACHE_CPP2
5253 ccache_cpp2=no
5254 cat > $TMPC << EOF
5255 static const int Z = 1;
5256 #define fn() ({ Z; })
5257 #define TAUT(X) ((X) == Z)
5258 #define PAREN(X, Y) (X == Y)
5259 #define ID(X) (X)
5260 int main(int argc, char *argv[])
5261 {
5262     int x = 0, y = 0;
5263     x = ID(x);
5264     x = fn();
5265     fn();
5266     if (PAREN(x, y)) return 0;
5267     if (TAUT(Z)) return 0;
5268     return 0;
5269 }
5270 EOF
5271
5272 if ! compile_object "-Werror"; then
5273     ccache_cpp2=yes
5274 fi
5275
5276 #################################################
5277 # clang does not support glibc + FORTIFY_SOURCE.
5278
5279 if test "$fortify_source" != "no"; then
5280   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
5281     fortify_source="no";
5282   elif test -n "$cxx" && has $cxx &&
5283        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
5284     fortify_source="no";
5285   else
5286     fortify_source="yes"
5287   fi
5288 fi
5289
5290 ###############################################
5291 # Check if copy_file_range is provided by glibc
5292 have_copy_file_range=no
5293 cat > $TMPC << EOF
5294 #include <unistd.h>
5295 int main(void) {
5296   copy_file_range(0, NULL, 0, NULL, 0, 0);
5297   return 0;
5298 }
5299 EOF
5300 if compile_prog "" "" ; then
5301     have_copy_file_range=yes
5302 fi
5303
5304 ##########################################
5305 # check if struct fsxattr is available via linux/fs.h
5306
5307 have_fsxattr=no
5308 cat > $TMPC << EOF
5309 #include <linux/fs.h>
5310 struct fsxattr foo;
5311 int main(void) {
5312   return 0;
5313 }
5314 EOF
5315 if compile_prog "" "" ; then
5316     have_fsxattr=yes
5317 fi
5318
5319 ##########################################
5320 # check for usable membarrier system call
5321 if test "$membarrier" = "yes"; then
5322     have_membarrier=no
5323     if test "$mingw32" = "yes" ; then
5324         have_membarrier=yes
5325     elif test "$linux" = "yes" ; then
5326         cat > $TMPC << EOF
5327     #include <linux/membarrier.h>
5328     #include <sys/syscall.h>
5329     #include <unistd.h>
5330     #include <stdlib.h>
5331     int main(void) {
5332         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
5333         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
5334         exit(0);
5335     }
5336 EOF
5337         if compile_prog "" "" ; then
5338             have_membarrier=yes
5339         fi
5340     fi
5341     if test "$have_membarrier" = "no"; then
5342       feature_not_found "membarrier" "membarrier system call not available"
5343     fi
5344 else
5345     # Do not enable it by default even for Mingw32, because it doesn't
5346     # work on Wine.
5347     membarrier=no
5348 fi
5349
5350 ##########################################
5351 # check if rtnetlink.h exists and is useful
5352 have_rtnetlink=no
5353 cat > $TMPC << EOF
5354 #include <linux/rtnetlink.h>
5355 int main(void) {
5356   return IFLA_PROTO_DOWN;
5357 }
5358 EOF
5359 if compile_prog "" "" ; then
5360     have_rtnetlink=yes
5361 fi
5362
5363 ##########################################
5364 # check for usable AF_VSOCK environment
5365 have_af_vsock=no
5366 cat > $TMPC << EOF
5367 #include <errno.h>
5368 #include <sys/types.h>
5369 #include <sys/socket.h>
5370 #if !defined(AF_VSOCK)
5371 # error missing AF_VSOCK flag
5372 #endif
5373 #include <linux/vm_sockets.h>
5374 int main(void) {
5375     int sock, ret;
5376     struct sockaddr_vm svm;
5377     socklen_t len = sizeof(svm);
5378     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
5379     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
5380     if ((ret == -1) && (errno == ENOTCONN)) {
5381         return 0;
5382     }
5383     return -1;
5384 }
5385 EOF
5386 if compile_prog "" "" ; then
5387     have_af_vsock=yes
5388 fi
5389
5390 ##########################################
5391 # check for usable AF_ALG environment
5392 have_afalg=no
5393 cat > $TMPC << EOF
5394 #include <errno.h>
5395 #include <sys/types.h>
5396 #include <sys/socket.h>
5397 #include <linux/if_alg.h>
5398 int main(void) {
5399     int sock;
5400     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
5401     return sock;
5402 }
5403 EOF
5404 if compile_prog "" "" ; then
5405     have_afalg=yes
5406 fi
5407 if test "$crypto_afalg" = "yes"
5408 then
5409     if test "$have_afalg" != "yes"
5410     then
5411         error_exit "AF_ALG requested but could not be detected"
5412     fi
5413 fi
5414
5415
5416 #################################################
5417 # check for sysmacros.h
5418
5419 have_sysmacros=no
5420 cat > $TMPC << EOF
5421 #include <sys/sysmacros.h>
5422 int main(void) {
5423     return makedev(0, 0);
5424 }
5425 EOF
5426 if compile_prog "" "" ; then
5427     have_sysmacros=yes
5428 fi
5429
5430 ##########################################
5431 # check for _Static_assert()
5432
5433 have_static_assert=no
5434 cat > $TMPC << EOF
5435 _Static_assert(1, "success");
5436 int main(void) {
5437     return 0;
5438 }
5439 EOF
5440 if compile_prog "" "" ; then
5441     have_static_assert=yes
5442 fi
5443
5444 ##########################################
5445 # check for utmpx.h, it is missing e.g. on OpenBSD
5446
5447 have_utmpx=no
5448 cat > $TMPC << EOF
5449 #include <utmpx.h>
5450 struct utmpx user_info;
5451 int main(void) {
5452     return 0;
5453 }
5454 EOF
5455 if compile_prog "" "" ; then
5456     have_utmpx=yes
5457 fi
5458
5459 ##########################################
5460 # check for getrandom()
5461
5462 have_getrandom=no
5463 cat > $TMPC << EOF
5464 #include <sys/random.h>
5465 int main(void) {
5466     return getrandom(0, 0, GRND_NONBLOCK);
5467 }
5468 EOF
5469 if compile_prog "" "" ; then
5470     have_getrandom=yes
5471 fi
5472
5473 ##########################################
5474 # checks for sanitizers
5475
5476 have_asan=no
5477 have_ubsan=no
5478 have_asan_iface_h=no
5479 have_asan_iface_fiber=no
5480
5481 if test "$sanitizers" = "yes" ; then
5482   write_c_skeleton
5483   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
5484       have_asan=yes
5485   fi
5486
5487   # we could use a simple skeleton for flags checks, but this also
5488   # detect the static linking issue of ubsan, see also:
5489   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
5490   cat > $TMPC << EOF
5491 #include <stdlib.h>
5492 int main(void) {
5493     void *tmp = malloc(10);
5494     if (tmp != NULL) {
5495         return *(int *)(tmp + 2);
5496     }
5497     return 1;
5498 }
5499 EOF
5500   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
5501       have_ubsan=yes
5502   fi
5503
5504   if check_include "sanitizer/asan_interface.h" ; then
5505       have_asan_iface_h=yes
5506   fi
5507
5508   cat > $TMPC << EOF
5509 #include <sanitizer/asan_interface.h>
5510 int main(void) {
5511   __sanitizer_start_switch_fiber(0, 0, 0);
5512   return 0;
5513 }
5514 EOF
5515   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
5516       have_asan_iface_fiber=yes
5517   fi
5518 fi
5519
5520 ##########################################
5521 # checks for fuzzer
5522 if test "$fuzzing" = "yes" && test -z "${LIB_FUZZING_ENGINE+xxx}"; then
5523   write_c_fuzzer_skeleton
5524   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
5525     have_fuzzer=yes
5526   else
5527     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
5528     exit 1
5529   fi
5530 fi
5531
5532 # Thread sanitizer is, for now, much noisier than the other sanitizers;
5533 # keep it separate until that is not the case.
5534 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
5535   error_exit "TSAN is not supported with other sanitiziers."
5536 fi
5537 have_tsan=no
5538 have_tsan_iface_fiber=no
5539 if test "$tsan" = "yes" ; then
5540   write_c_skeleton
5541   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5542       have_tsan=yes
5543   fi
5544   cat > $TMPC << EOF
5545 #include <sanitizer/tsan_interface.h>
5546 int main(void) {
5547   __tsan_create_fiber(0);
5548   return 0;
5549 }
5550 EOF
5551   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5552       have_tsan_iface_fiber=yes
5553   fi
5554 fi
5555
5556 ##########################################
5557 # check for libpmem
5558
5559 if test "$libpmem" != "no"; then
5560         if $pkg_config --exists "libpmem"; then
5561                 libpmem="yes"
5562                 libpmem_libs=$($pkg_config --libs libpmem)
5563                 libpmem_cflags=$($pkg_config --cflags libpmem)
5564         else
5565                 if test "$libpmem" = "yes" ; then
5566                         feature_not_found "libpmem" "Install nvml or pmdk"
5567                 fi
5568                 libpmem="no"
5569         fi
5570 fi
5571
5572 ##########################################
5573 # check for libdaxctl
5574
5575 if test "$libdaxctl" != "no"; then
5576         if $pkg_config --atleast-version=57 "libdaxctl"; then
5577                 libdaxctl="yes"
5578                 libdaxctl_libs=$($pkg_config --libs libdaxctl)
5579                 libdaxctl_cflags=$($pkg_config --cflags libdaxctl)
5580         else
5581                 if test "$libdaxctl" = "yes" ; then
5582                         feature_not_found "libdaxctl" "Install libdaxctl"
5583                 fi
5584                 libdaxctl="no"
5585         fi
5586 fi
5587
5588 ##########################################
5589 # check for slirp
5590
5591 case "$slirp" in
5592   auto | enabled | internal)
5593     # Simpler to always update submodule, even if not needed.
5594     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
5595       git_submodules="${git_submodules} slirp"
5596     fi
5597     ;;
5598 esac
5599
5600 ##########################################
5601 # check for usable __NR_keyctl syscall
5602
5603 if test "$linux" = "yes" ; then
5604
5605     have_keyring=no
5606     cat > $TMPC << EOF
5607 #include <errno.h>
5608 #include <asm/unistd.h>
5609 #include <linux/keyctl.h>
5610 #include <unistd.h>
5611 int main(void) {
5612     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
5613 }
5614 EOF
5615     if compile_prog "" "" ; then
5616         have_keyring=yes
5617     fi
5618 fi
5619 if test "$secret_keyring" != "no"
5620 then
5621     if test "$have_keyring" = "yes"
5622     then
5623         secret_keyring=yes
5624     else
5625         if test "$secret_keyring" = "yes"
5626         then
5627             error_exit "syscall __NR_keyctl requested, \
5628 but not implemented on your system"
5629         else
5630             secret_keyring=no
5631         fi
5632     fi
5633 fi
5634
5635 ##########################################
5636 # End of CC checks
5637 # After here, no more $cc or $ld runs
5638
5639 write_c_skeleton
5640
5641 if test "$gcov" = "yes" ; then
5642   :
5643 elif test "$fortify_source" = "yes" ; then
5644   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
5645   debug=no
5646 fi
5647
5648 case "$ARCH" in
5649 alpha)
5650   # Ensure there's only a single GP
5651   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
5652 ;;
5653 esac
5654
5655 if test "$gprof" = "yes" ; then
5656   QEMU_CFLAGS="-p $QEMU_CFLAGS"
5657   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
5658 fi
5659
5660 if test "$have_asan" = "yes"; then
5661   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
5662   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
5663   if test "$have_asan_iface_h" = "no" ; then
5664       echo "ASAN build enabled, but ASAN header missing." \
5665            "Without code annotation, the report may be inferior."
5666   elif test "$have_asan_iface_fiber" = "no" ; then
5667       echo "ASAN build enabled, but ASAN header is too old." \
5668            "Without code annotation, the report may be inferior."
5669   fi
5670 fi
5671 if test "$have_tsan" = "yes" ; then
5672   if test "$have_tsan_iface_fiber" = "yes" ; then
5673     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
5674     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
5675   else
5676     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
5677   fi
5678 elif test "$tsan" = "yes" ; then
5679   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
5680 fi
5681 if test "$have_ubsan" = "yes"; then
5682   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
5683   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
5684 fi
5685
5686 ##########################################
5687 # Do we have libnfs
5688 if test "$libnfs" != "no" ; then
5689   if $pkg_config --atleast-version=1.9.3 libnfs; then
5690     libnfs="yes"
5691     libnfs_libs=$($pkg_config --libs libnfs)
5692   else
5693     if test "$libnfs" = "yes" ; then
5694       feature_not_found "libnfs" "Install libnfs devel >= 1.9.3"
5695     fi
5696     libnfs="no"
5697   fi
5698 fi
5699
5700 ##########################################
5701
5702 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
5703 if test "$solaris" = "no" && test "$tsan" = "no"; then
5704     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
5705         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
5706     fi
5707 fi
5708
5709 # Use ASLR, no-SEH and DEP if available
5710 if test "$mingw32" = "yes" ; then
5711     flags="--no-seh --nxcompat"
5712
5713     # Disable ASLR for debug builds to allow debugging with gdb
5714     if test "$debug" = "no" ; then
5715         flags="--dynamicbase $flags"
5716     fi
5717
5718     for flag in $flags; do
5719         if ld_has $flag ; then
5720             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
5721         fi
5722     done
5723 fi
5724
5725 # We can only support ivshmem if we have eventfd
5726 if [ "$eventfd" = "yes" ]; then
5727   ivshmem=yes
5728 fi
5729
5730 if test "$softmmu" = yes ; then
5731   if test "$linux" = yes; then
5732     if test "$virtfs" != no && test "$cap_ng" = yes && test "$attr" = yes ; then
5733       virtfs=yes
5734     else
5735       if test "$virtfs" = yes; then
5736         error_exit "VirtFS requires libcap-ng devel and libattr devel"
5737       fi
5738       virtfs=no
5739     fi
5740   else
5741     if test "$virtfs" = yes; then
5742       error_exit "VirtFS is supported only on Linux"
5743     fi
5744     virtfs=no
5745   fi
5746 fi
5747
5748 # Probe for guest agent support/options
5749
5750 if [ "$guest_agent" != "no" ]; then
5751   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
5752       guest_agent=no
5753   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
5754       guest_agent=yes
5755   elif [ "$guest_agent" != yes ]; then
5756       guest_agent=no
5757   else
5758       error_exit "Guest agent is not supported on this platform"
5759   fi
5760 fi
5761
5762 # Guest agent Window MSI  package
5763
5764 if test "$guest_agent" != yes; then
5765   if test "$guest_agent_msi" = yes; then
5766     error_exit "MSI guest agent package requires guest agent enabled"
5767   fi
5768   guest_agent_msi=no
5769 elif test "$mingw32" != "yes"; then
5770   if test "$guest_agent_msi" = "yes"; then
5771     error_exit "MSI guest agent package is available only for MinGW Windows cross-compilation"
5772   fi
5773   guest_agent_msi=no
5774 elif ! has wixl; then
5775   if test "$guest_agent_msi" = "yes"; then
5776     error_exit "MSI guest agent package requires wixl tool installed ( usually from msitools package )"
5777   fi
5778   guest_agent_msi=no
5779 else
5780   # we support qemu-ga, mingw32, and wixl: default to MSI enabled if it wasn't
5781   # disabled explicitly
5782   if test "$guest_agent_msi" != "no"; then
5783     guest_agent_msi=yes
5784   fi
5785 fi
5786
5787 if test "$guest_agent_msi" = "yes"; then
5788   if test "$guest_agent_with_vss" = "yes"; then
5789     QEMU_GA_MSI_WITH_VSS="-D InstallVss"
5790   fi
5791
5792   if test "$QEMU_GA_MANUFACTURER" = ""; then
5793     QEMU_GA_MANUFACTURER=QEMU
5794   fi
5795
5796   if test "$QEMU_GA_DISTRO" = ""; then
5797     QEMU_GA_DISTRO=Linux
5798   fi
5799
5800   if test "$QEMU_GA_VERSION" = ""; then
5801       QEMU_GA_VERSION=$(cat $source_path/VERSION)
5802   fi
5803
5804   QEMU_GA_MSI_MINGW_DLL_PATH="-D Mingw_dlls=$($pkg_config --variable=prefix glib-2.0)/bin"
5805
5806   case "$cpu" in
5807   x86_64)
5808     QEMU_GA_MSI_ARCH="-a x64 -D Arch=64"
5809     ;;
5810   i386)
5811     QEMU_GA_MSI_ARCH="-D Arch=32"
5812     ;;
5813   *)
5814     error_exit "CPU $cpu not supported for building installation package"
5815     ;;
5816   esac
5817 fi
5818
5819 # Mac OS X ships with a broken assembler
5820 roms=
5821 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
5822         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
5823         test "$softmmu" = yes ; then
5824     # Different host OS linkers have different ideas about the name of the ELF
5825     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
5826     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
5827     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
5828         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
5829             ld_i386_emulation="$emu"
5830             roms="optionrom"
5831             break
5832         fi
5833     done
5834 fi
5835
5836 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
5837 if test "$cpu" = "s390x" ; then
5838   write_c_skeleton
5839   if compile_prog "-march=z900" ""; then
5840     roms="$roms s390-ccw"
5841     # SLOF is required for building the s390-ccw firmware on s390x,
5842     # since it is using the libnet code from SLOF for network booting.
5843     if test -e "${source_path}/.git" ; then
5844       git_submodules="${git_submodules} roms/SLOF"
5845     fi
5846   fi
5847 fi
5848
5849 # Check that the C++ compiler exists and works with the C compiler.
5850 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
5851 if has $cxx; then
5852     cat > $TMPC <<EOF
5853 int c_function(void);
5854 int main(void) { return c_function(); }
5855 EOF
5856
5857     compile_object
5858
5859     cat > $TMPCXX <<EOF
5860 extern "C" {
5861    int c_function(void);
5862 }
5863 int c_function(void) { return 42; }
5864 EOF
5865
5866     update_cxxflags
5867
5868     if do_cxx $CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
5869         # C++ compiler $cxx works ok with C compiler $cc
5870         :
5871     else
5872         echo "C++ compiler $cxx does not work with C compiler $cc"
5873         echo "Disabling C++ specific optional code"
5874         cxx=
5875     fi
5876 else
5877     echo "No C++ compiler available; disabling C++ specific optional code"
5878     cxx=
5879 fi
5880
5881 if test $git_update = 'yes' ; then
5882     (cd "${source_path}" && GIT="$git" "./scripts/git-submodule.sh" update "$git_submodules")
5883 fi
5884
5885 config_host_mak="config-host.mak"
5886
5887 echo "# Automatically generated by configure - do not modify" > $config_host_mak
5888 echo >> $config_host_mak
5889
5890 echo all: >> $config_host_mak
5891 echo "GIT=$git" >> $config_host_mak
5892 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
5893 echo "GIT_UPDATE=$git_update" >> $config_host_mak
5894
5895 echo "ARCH=$ARCH" >> $config_host_mak
5896
5897 if test "$default_devices" = "yes" ; then
5898   echo "CONFIG_MINIKCONF_MODE=--defconfig" >> $config_host_mak
5899 else
5900   echo "CONFIG_MINIKCONF_MODE=--allnoconfig" >> $config_host_mak
5901 fi
5902 if test "$debug_tcg" = "yes" ; then
5903   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
5904 fi
5905 if test "$strip_opt" = "yes" ; then
5906   echo "STRIP=${strip}" >> $config_host_mak
5907 fi
5908 if test "$bigendian" = "yes" ; then
5909   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
5910 fi
5911 if test "$mingw32" = "yes" ; then
5912   echo "CONFIG_WIN32=y" >> $config_host_mak
5913   rc_version=$(cat $source_path/VERSION)
5914   version_major=${rc_version%%.*}
5915   rc_version=${rc_version#*.}
5916   version_minor=${rc_version%%.*}
5917   rc_version=${rc_version#*.}
5918   version_subminor=${rc_version%%.*}
5919   version_micro=0
5920   echo "CONFIG_FILEVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
5921   echo "CONFIG_PRODUCTVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
5922   if test "$guest_agent_with_vss" = "yes" ; then
5923     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
5924     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
5925     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
5926   fi
5927   if test "$guest_agent_ntddscsi" = "yes" ; then
5928     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
5929   fi
5930   if test "$guest_agent_msi" = "yes"; then
5931     echo "CONFIG_QGA_MSI=y" >> $config_host_mak
5932     echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
5933     echo "QEMU_GA_MSI_WITH_VSS=${QEMU_GA_MSI_WITH_VSS}" >> $config_host_mak
5934     echo "QEMU_GA_MSI_ARCH=${QEMU_GA_MSI_ARCH}" >> $config_host_mak
5935     echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
5936     echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
5937     echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
5938   fi
5939 else
5940   echo "CONFIG_POSIX=y" >> $config_host_mak
5941 fi
5942
5943 if test "$linux" = "yes" ; then
5944   echo "CONFIG_LINUX=y" >> $config_host_mak
5945 fi
5946
5947 if test "$darwin" = "yes" ; then
5948   echo "CONFIG_DARWIN=y" >> $config_host_mak
5949 fi
5950
5951 if test "$solaris" = "yes" ; then
5952   echo "CONFIG_SOLARIS=y" >> $config_host_mak
5953 fi
5954 if test "$haiku" = "yes" ; then
5955   echo "CONFIG_HAIKU=y" >> $config_host_mak
5956 fi
5957 if test "$static" = "yes" ; then
5958   echo "CONFIG_STATIC=y" >> $config_host_mak
5959 fi
5960 if test "$profiler" = "yes" ; then
5961   echo "CONFIG_PROFILER=y" >> $config_host_mak
5962 fi
5963 if test "$want_tools" = "yes" ; then
5964   echo "CONFIG_TOOLS=y" >> $config_host_mak
5965 fi
5966 if test "$guest_agent" = "yes" ; then
5967   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
5968 fi
5969 echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
5970 if test "$vde" = "yes" ; then
5971   echo "CONFIG_VDE=y" >> $config_host_mak
5972   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
5973 fi
5974 if test "$netmap" = "yes" ; then
5975   echo "CONFIG_NETMAP=y" >> $config_host_mak
5976 fi
5977 if test "$l2tpv3" = "yes" ; then
5978   echo "CONFIG_L2TPV3=y" >> $config_host_mak
5979 fi
5980 if test "$gprof" = "yes" ; then
5981   echo "CONFIG_GPROF=y" >> $config_host_mak
5982 fi
5983 if test "$cap_ng" = "yes" ; then
5984   echo "CONFIG_LIBCAP_NG=y" >> $config_host_mak
5985   echo "LIBCAP_NG_LIBS=$cap_libs" >> $config_host_mak
5986 fi
5987 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
5988 for drv in $audio_drv_list; do
5989     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
5990     echo "$def=y" >> $config_host_mak
5991 done
5992 if test "$alsa" = "yes" ; then
5993     echo "CONFIG_ALSA=y" >> $config_host_mak
5994 fi
5995 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
5996 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
5997 if test "$libpulse" = "yes" ; then
5998     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
5999 fi
6000 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
6001 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
6002 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
6003 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
6004 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
6005 if test "$libjack" = "yes" ; then
6006     echo "CONFIG_LIBJACK=y" >> $config_host_mak
6007 fi
6008 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
6009 if test "$audio_win_int" = "yes" ; then
6010   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
6011 fi
6012 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
6013 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
6014 if test "$xfs" = "yes" ; then
6015   echo "CONFIG_XFS=y" >> $config_host_mak
6016 fi
6017 qemu_version=$(head $source_path/VERSION)
6018 echo "PKGVERSION=$pkgversion" >>$config_host_mak
6019 echo "SRC_PATH=$source_path" >> $config_host_mak
6020 echo "TARGET_DIRS=$target_list" >> $config_host_mak
6021 if test "$modules" = "yes"; then
6022   # $shacmd can generate a hash started with digit, which the compiler doesn't
6023   # like as an symbol. So prefix it with an underscore
6024   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
6025   echo "CONFIG_MODULES=y" >> $config_host_mak
6026 fi
6027 if test "$module_upgrades" = "yes"; then
6028   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
6029 fi
6030 if test "$have_x11" = "yes" && test "$need_x11" = "yes"; then
6031   echo "CONFIG_X11=y" >> $config_host_mak
6032   echo "X11_CFLAGS=$x11_cflags" >> $config_host_mak
6033   echo "X11_LIBS=$x11_libs" >> $config_host_mak
6034 fi
6035 if test "$pipe2" = "yes" ; then
6036   echo "CONFIG_PIPE2=y" >> $config_host_mak
6037 fi
6038 if test "$accept4" = "yes" ; then
6039   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
6040 fi
6041 if test "$splice" = "yes" ; then
6042   echo "CONFIG_SPLICE=y" >> $config_host_mak
6043 fi
6044 if test "$eventfd" = "yes" ; then
6045   echo "CONFIG_EVENTFD=y" >> $config_host_mak
6046 fi
6047 if test "$memfd" = "yes" ; then
6048   echo "CONFIG_MEMFD=y" >> $config_host_mak
6049 fi
6050 if test "$have_usbfs" = "yes" ; then
6051   echo "CONFIG_USBFS=y" >> $config_host_mak
6052 fi
6053 if test "$fallocate" = "yes" ; then
6054   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
6055 fi
6056 if test "$fallocate_punch_hole" = "yes" ; then
6057   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
6058 fi
6059 if test "$fallocate_zero_range" = "yes" ; then
6060   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
6061 fi
6062 if test "$posix_fallocate" = "yes" ; then
6063   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
6064 fi
6065 if test "$sync_file_range" = "yes" ; then
6066   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
6067 fi
6068 if test "$fiemap" = "yes" ; then
6069   echo "CONFIG_FIEMAP=y" >> $config_host_mak
6070 fi
6071 if test "$dup3" = "yes" ; then
6072   echo "CONFIG_DUP3=y" >> $config_host_mak
6073 fi
6074 if test "$ppoll" = "yes" ; then
6075   echo "CONFIG_PPOLL=y" >> $config_host_mak
6076 fi
6077 if test "$prctl_pr_set_timerslack" = "yes" ; then
6078   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
6079 fi
6080 if test "$epoll" = "yes" ; then
6081   echo "CONFIG_EPOLL=y" >> $config_host_mak
6082 fi
6083 if test "$epoll_create1" = "yes" ; then
6084   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
6085 fi
6086 if test "$sendfile" = "yes" ; then
6087   echo "CONFIG_SENDFILE=y" >> $config_host_mak
6088 fi
6089 if test "$timerfd" = "yes" ; then
6090   echo "CONFIG_TIMERFD=y" >> $config_host_mak
6091 fi
6092 if test "$setns" = "yes" ; then
6093   echo "CONFIG_SETNS=y" >> $config_host_mak
6094 fi
6095 if test "$clock_adjtime" = "yes" ; then
6096   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
6097 fi
6098 if test "$syncfs" = "yes" ; then
6099   echo "CONFIG_SYNCFS=y" >> $config_host_mak
6100 fi
6101 if test "$kcov" = "yes" ; then
6102   echo "CONFIG_KCOV=y" >> $config_host_mak
6103 fi
6104 if test "$btrfs" = "yes" ; then
6105   echo "CONFIG_BTRFS=y" >> $config_host_mak
6106 fi
6107 if test "$inotify" = "yes" ; then
6108   echo "CONFIG_INOTIFY=y" >> $config_host_mak
6109 fi
6110 if test "$inotify1" = "yes" ; then
6111   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
6112 fi
6113 if test "$sem_timedwait" = "yes" ; then
6114   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
6115 fi
6116 if test "$strchrnul" = "yes" ; then
6117   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
6118 fi
6119 if test "$st_atim" = "yes" ; then
6120   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
6121 fi
6122 if test "$byteswap_h" = "yes" ; then
6123   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
6124 fi
6125 if test "$bswap_h" = "yes" ; then
6126   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
6127 fi
6128 if test "$curl" = "yes" ; then
6129   echo "CONFIG_CURL=y" >> $config_host_mak
6130   echo "CURL_CFLAGS=$curl_cflags" >> $config_host_mak
6131   echo "CURL_LIBS=$curl_libs" >> $config_host_mak
6132 fi
6133 if test "$brlapi" = "yes" ; then
6134   echo "CONFIG_BRLAPI=y" >> $config_host_mak
6135   echo "BRLAPI_LIBS=$brlapi_libs" >> $config_host_mak
6136 fi
6137 if test "$gtk" = "yes" ; then
6138   echo "CONFIG_GTK=y" >> $config_host_mak
6139   echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
6140   echo "GTK_LIBS=$gtk_libs" >> $config_host_mak
6141   if test "$gtk_gl" = "yes" ; then
6142     echo "CONFIG_GTK_GL=y" >> $config_host_mak
6143   fi
6144 fi
6145 if test "$gio" = "yes" ; then
6146     echo "CONFIG_GIO=y" >> $config_host_mak
6147     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
6148     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
6149     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
6150 fi
6151 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
6152 if test "$gnutls" = "yes" ; then
6153   echo "CONFIG_GNUTLS=y" >> $config_host_mak
6154   echo "GNUTLS_CFLAGS=$gnutls_cflags" >> $config_host_mak
6155   echo "GNUTLS_LIBS=$gnutls_libs" >> $config_host_mak
6156 fi
6157 if test "$gcrypt" = "yes" ; then
6158   echo "CONFIG_GCRYPT=y" >> $config_host_mak
6159   if test "$gcrypt_hmac" = "yes" ; then
6160     echo "CONFIG_GCRYPT_HMAC=y" >> $config_host_mak
6161   fi
6162   echo "GCRYPT_CFLAGS=$gcrypt_cflags" >> $config_host_mak
6163   echo "GCRYPT_LIBS=$gcrypt_libs" >> $config_host_mak
6164 fi
6165 if test "$nettle" = "yes" ; then
6166   echo "CONFIG_NETTLE=y" >> $config_host_mak
6167   echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
6168   echo "NETTLE_CFLAGS=$nettle_cflags" >> $config_host_mak
6169   echo "NETTLE_LIBS=$nettle_libs" >> $config_host_mak
6170 fi
6171 if test "$qemu_private_xts" = "yes" ; then
6172   echo "CONFIG_QEMU_PRIVATE_XTS=y" >> $config_host_mak
6173 fi
6174 if test "$tasn1" = "yes" ; then
6175   echo "CONFIG_TASN1=y" >> $config_host_mak
6176 fi
6177 if test "$auth_pam" = "yes" ; then
6178     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
6179 fi
6180 if test "$have_ifaddrs_h" = "yes" ; then
6181     echo "HAVE_IFADDRS_H=y" >> $config_host_mak
6182 fi
6183 if test "$have_drm_h" = "yes" ; then
6184   echo "HAVE_DRM_H=y" >> $config_host_mak
6185 fi
6186 if test "$have_broken_size_max" = "yes" ; then
6187     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
6188 fi
6189 if test "$have_openpty" = "yes" ; then
6190     echo "HAVE_OPENPTY=y" >> $config_host_mak
6191 fi
6192 if test "$have_sys_signal_h" = "yes" ; then
6193     echo "HAVE_SYS_SIGNAL_H=y" >> $config_host_mak
6194 fi
6195
6196 # Work around a system header bug with some kernel/XFS header
6197 # versions where they both try to define 'struct fsxattr':
6198 # xfs headers will not try to redefine structs from linux headers
6199 # if this macro is set.
6200 if test "$have_fsxattr" = "yes" ; then
6201     echo "HAVE_FSXATTR=y" >> $config_host_mak
6202 fi
6203 if test "$have_copy_file_range" = "yes" ; then
6204     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
6205 fi
6206 if test "$vte" = "yes" ; then
6207   echo "CONFIG_VTE=y" >> $config_host_mak
6208   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
6209   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
6210 fi
6211 if test "$virglrenderer" = "yes" ; then
6212   echo "CONFIG_VIRGL=y" >> $config_host_mak
6213   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
6214   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
6215 fi
6216 if test "$xen" = "enabled" ; then
6217   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
6218   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
6219   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
6220   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
6221 fi
6222 if test "$linux_aio" = "yes" ; then
6223   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
6224 fi
6225 if test "$linux_io_uring" = "yes" ; then
6226   echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
6227   echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
6228   echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
6229 fi
6230 if test "$attr" = "yes" ; then
6231   echo "CONFIG_ATTR=y" >> $config_host_mak
6232   echo "LIBATTR_LIBS=$libattr_libs" >> $config_host_mak
6233 fi
6234 if test "$libattr" = "yes" ; then
6235   echo "CONFIG_LIBATTR=y" >> $config_host_mak
6236 fi
6237 if test "$virtfs" = "yes" ; then
6238   echo "CONFIG_VIRTFS=y" >> $config_host_mak
6239 fi
6240 if test "$vhost_scsi" = "yes" ; then
6241   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
6242 fi
6243 if test "$vhost_net" = "yes" ; then
6244   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
6245 fi
6246 if test "$vhost_net_user" = "yes" ; then
6247   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
6248 fi
6249 if test "$vhost_net_vdpa" = "yes" ; then
6250   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
6251 fi
6252 if test "$vhost_crypto" = "yes" ; then
6253   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
6254 fi
6255 if test "$vhost_vsock" = "yes" ; then
6256   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
6257   if test "$vhost_user" = "yes" ; then
6258     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
6259   fi
6260 fi
6261 if test "$vhost_kernel" = "yes" ; then
6262   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
6263 fi
6264 if test "$vhost_user" = "yes" ; then
6265   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
6266 fi
6267 if test "$vhost_vdpa" = "yes" ; then
6268   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
6269 fi
6270 if test "$vhost_user_fs" = "yes" ; then
6271   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
6272 fi
6273 if test "$iovec" = "yes" ; then
6274   echo "CONFIG_IOVEC=y" >> $config_host_mak
6275 fi
6276 if test "$preadv" = "yes" ; then
6277   echo "CONFIG_PREADV=y" >> $config_host_mak
6278 fi
6279 if test "$membarrier" = "yes" ; then
6280   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
6281 fi
6282 if test "$signalfd" = "yes" ; then
6283   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
6284 fi
6285 if test "$optreset" = "yes" ; then
6286   echo "HAVE_OPTRESET=y" >> $config_host_mak
6287 fi
6288 if test "$tcg" = "enabled"; then
6289   if test "$tcg_interpreter" = "yes" ; then
6290     echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
6291   fi
6292 fi
6293 if test "$fdatasync" = "yes" ; then
6294   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
6295 fi
6296 if test "$madvise" = "yes" ; then
6297   echo "CONFIG_MADVISE=y" >> $config_host_mak
6298 fi
6299 if test "$posix_madvise" = "yes" ; then
6300   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
6301 fi
6302 if test "$posix_memalign" = "yes" ; then
6303   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
6304 fi
6305 if test "$spice" = "yes" ; then
6306   echo "CONFIG_SPICE=y" >> $config_host_mak
6307   echo "SPICE_CFLAGS=$spice_cflags" >> $config_host_mak
6308   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
6309 fi
6310
6311 if test "$smartcard" = "yes" ; then
6312   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
6313   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
6314   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
6315 fi
6316
6317 if test "$libusb" = "yes" ; then
6318   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
6319   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
6320   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
6321 fi
6322
6323 if test "$usb_redir" = "yes" ; then
6324   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
6325   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
6326   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
6327 fi
6328
6329 if test "$opengl" = "yes" ; then
6330   echo "CONFIG_OPENGL=y" >> $config_host_mak
6331   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
6332   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
6333   if test "$opengl_dmabuf" = "yes" ; then
6334     echo "CONFIG_OPENGL_DMABUF=y" >> $config_host_mak
6335   fi
6336 fi
6337
6338 if test "$gbm" = "yes" ; then
6339     echo "CONFIG_GBM=y" >> $config_host_mak
6340     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
6341     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
6342 fi
6343
6344
6345 if test "$avx2_opt" = "yes" ; then
6346   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
6347 fi
6348
6349 if test "$avx512f_opt" = "yes" ; then
6350   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
6351 fi
6352
6353 if test "$lzo" = "yes" ; then
6354   echo "CONFIG_LZO=y" >> $config_host_mak
6355   echo "LZO_LIBS=$lzo_libs" >> $config_host_mak
6356 fi
6357
6358 if test "$snappy" = "yes" ; then
6359   echo "CONFIG_SNAPPY=y" >> $config_host_mak
6360   echo "SNAPPY_LIBS=$snappy_libs" >> $config_host_mak
6361 fi
6362
6363 if test "$bzip2" = "yes" ; then
6364   echo "CONFIG_BZIP2=y" >> $config_host_mak
6365   echo "BZIP2_LIBS=-lbz2" >> $config_host_mak
6366 fi
6367
6368 if test "$lzfse" = "yes" ; then
6369   echo "CONFIG_LZFSE=y" >> $config_host_mak
6370   echo "LZFSE_LIBS=-llzfse" >> $config_host_mak
6371 fi
6372
6373 if test "$zstd" = "yes" ; then
6374   echo "CONFIG_ZSTD=y" >> $config_host_mak
6375   echo "ZSTD_CFLAGS=$zstd_cflags" >> $config_host_mak
6376   echo "ZSTD_LIBS=$zstd_libs" >> $config_host_mak
6377 fi
6378
6379 if test "$libiscsi" = "yes" ; then
6380   echo "CONFIG_LIBISCSI=y" >> $config_host_mak
6381   echo "LIBISCSI_CFLAGS=$libiscsi_cflags" >> $config_host_mak
6382   echo "LIBISCSI_LIBS=$libiscsi_libs" >> $config_host_mak
6383 fi
6384
6385 if test "$libnfs" = "yes" ; then
6386   echo "CONFIG_LIBNFS=y" >> $config_host_mak
6387   echo "LIBNFS_LIBS=$libnfs_libs" >> $config_host_mak
6388 fi
6389
6390 if test "$seccomp" = "yes"; then
6391   echo "CONFIG_SECCOMP=y" >> $config_host_mak
6392   echo "SECCOMP_CFLAGS=$seccomp_cflags" >> $config_host_mak
6393   echo "SECCOMP_LIBS=$seccomp_libs" >> $config_host_mak
6394 fi
6395
6396 # XXX: suppress that
6397 if [ "$bsd" = "yes" ] ; then
6398   echo "CONFIG_BSD=y" >> $config_host_mak
6399 fi
6400
6401 if test "$qom_cast_debug" = "yes" ; then
6402   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
6403 fi
6404 if test "$rbd" = "yes" ; then
6405   echo "CONFIG_RBD=y" >> $config_host_mak
6406   echo "RBD_LIBS=$rbd_libs" >> $config_host_mak
6407 fi
6408
6409 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
6410 if test "$coroutine_pool" = "yes" ; then
6411   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
6412 else
6413   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
6414 fi
6415
6416 if test "$debug_stack_usage" = "yes" ; then
6417   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
6418 fi
6419
6420 if test "$crypto_afalg" = "yes" ; then
6421   echo "CONFIG_AF_ALG=y" >> $config_host_mak
6422 fi
6423
6424 if test "$open_by_handle_at" = "yes" ; then
6425   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
6426 fi
6427
6428 if test "$linux_magic_h" = "yes" ; then
6429   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
6430 fi
6431
6432 if test "$valgrind_h" = "yes" ; then
6433   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
6434 fi
6435
6436 if test "$have_asan_iface_fiber" = "yes" ; then
6437     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
6438 fi
6439
6440 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
6441     echo "CONFIG_TSAN=y" >> $config_host_mak
6442 fi
6443
6444 if test "$has_environ" = "yes" ; then
6445   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
6446 fi
6447
6448 if test "$cpuid_h" = "yes" ; then
6449   echo "CONFIG_CPUID_H=y" >> $config_host_mak
6450 fi
6451
6452 if test "$int128" = "yes" ; then
6453   echo "CONFIG_INT128=y" >> $config_host_mak
6454 fi
6455
6456 if test "$atomic128" = "yes" ; then
6457   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
6458 fi
6459
6460 if test "$cmpxchg128" = "yes" ; then
6461   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
6462 fi
6463
6464 if test "$atomic64" = "yes" ; then
6465   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
6466 fi
6467
6468 if test "$attralias" = "yes" ; then
6469   echo "CONFIG_ATTRIBUTE_ALIAS=y" >> $config_host_mak
6470 fi
6471
6472 if test "$getauxval" = "yes" ; then
6473   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
6474 fi
6475
6476 if test "$glusterfs" = "yes" ; then
6477   echo "CONFIG_GLUSTERFS=y" >> $config_host_mak
6478   echo "GLUSTERFS_CFLAGS=$glusterfs_cflags" >> $config_host_mak
6479   echo "GLUSTERFS_LIBS=$glusterfs_libs" >> $config_host_mak
6480 fi
6481
6482 if test "$glusterfs_xlator_opt" = "yes" ; then
6483   echo "CONFIG_GLUSTERFS_XLATOR_OPT=y" >> $config_host_mak
6484 fi
6485
6486 if test "$glusterfs_discard" = "yes" ; then
6487   echo "CONFIG_GLUSTERFS_DISCARD=y" >> $config_host_mak
6488 fi
6489
6490 if test "$glusterfs_fallocate" = "yes" ; then
6491   echo "CONFIG_GLUSTERFS_FALLOCATE=y" >> $config_host_mak
6492 fi
6493
6494 if test "$glusterfs_zerofill" = "yes" ; then
6495   echo "CONFIG_GLUSTERFS_ZEROFILL=y" >> $config_host_mak
6496 fi
6497
6498 if test "$glusterfs_ftruncate_has_stat" = "yes" ; then
6499   echo "CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT=y" >> $config_host_mak
6500 fi
6501
6502 if test "$glusterfs_iocb_has_stat" = "yes" ; then
6503   echo "CONFIG_GLUSTERFS_IOCB_HAS_STAT=y" >> $config_host_mak
6504 fi
6505
6506 if test "$libssh" = "yes" ; then
6507   echo "CONFIG_LIBSSH=y" >> $config_host_mak
6508   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
6509   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
6510 fi
6511
6512 if test "$live_block_migration" = "yes" ; then
6513   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
6514 fi
6515
6516 if test "$tpm" = "yes"; then
6517   echo 'CONFIG_TPM=y' >> $config_host_mak
6518 fi
6519
6520 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
6521 if have_backend "nop"; then
6522   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
6523 fi
6524 if have_backend "simple"; then
6525   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
6526   # Set the appropriate trace file.
6527   trace_file="\"$trace_file-\" FMT_pid"
6528 fi
6529 if have_backend "log"; then
6530   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
6531 fi
6532 if have_backend "ust"; then
6533   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
6534   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
6535   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
6536 fi
6537 if have_backend "dtrace"; then
6538   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
6539   if test "$trace_backend_stap" = "yes" ; then
6540     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
6541   fi
6542 fi
6543 if have_backend "ftrace"; then
6544   if test "$linux" = "yes" ; then
6545     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
6546   else
6547     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
6548   fi
6549 fi
6550 if have_backend "syslog"; then
6551   if test "$posix_syslog" = "yes" ; then
6552     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
6553   else
6554     feature_not_found "syslog(trace backend)" "syslog not available"
6555   fi
6556 fi
6557 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
6558
6559 if test "$rdma" = "yes" ; then
6560   echo "CONFIG_RDMA=y" >> $config_host_mak
6561   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
6562 fi
6563
6564 if test "$pvrdma" = "yes" ; then
6565   echo "CONFIG_PVRDMA=y" >> $config_host_mak
6566 fi
6567
6568 if test "$have_rtnetlink" = "yes" ; then
6569   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
6570 fi
6571
6572 if test "$libxml2" = "yes" ; then
6573   echo "CONFIG_LIBXML2=y" >> $config_host_mak
6574   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
6575   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
6576 fi
6577
6578 if test "$replication" = "yes" ; then
6579   echo "CONFIG_REPLICATION=y" >> $config_host_mak
6580 fi
6581
6582 if test "$have_af_vsock" = "yes" ; then
6583   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
6584 fi
6585
6586 if test "$have_sysmacros" = "yes" ; then
6587   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
6588 fi
6589
6590 if test "$have_static_assert" = "yes" ; then
6591   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
6592 fi
6593
6594 if test "$have_utmpx" = "yes" ; then
6595   echo "HAVE_UTMPX=y" >> $config_host_mak
6596 fi
6597 if test "$have_getrandom" = "yes" ; then
6598   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
6599 fi
6600 if test "$ivshmem" = "yes" ; then
6601   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
6602 fi
6603 if test "$debug_mutex" = "yes" ; then
6604   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
6605 fi
6606
6607 # Hold two types of flag:
6608 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
6609 #                                     a thread we have a handle to
6610 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
6611 #                                     platform
6612 if test "$pthread_setname_np_w_tid" = "yes" ; then
6613   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6614   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
6615 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
6616   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6617   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
6618 fi
6619
6620 if test "$libpmem" = "yes" ; then
6621   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
6622   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
6623   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
6624 fi
6625
6626 if test "$libdaxctl" = "yes" ; then
6627   echo "CONFIG_LIBDAXCTL=y" >> $config_host_mak
6628   echo "LIBDAXCTL_LIBS=$libdaxctl_libs" >> $config_host_mak
6629 fi
6630
6631 if test "$bochs" = "yes" ; then
6632   echo "CONFIG_BOCHS=y" >> $config_host_mak
6633 fi
6634 if test "$cloop" = "yes" ; then
6635   echo "CONFIG_CLOOP=y" >> $config_host_mak
6636 fi
6637 if test "$dmg" = "yes" ; then
6638   echo "CONFIG_DMG=y" >> $config_host_mak
6639 fi
6640 if test "$qcow1" = "yes" ; then
6641   echo "CONFIG_QCOW1=y" >> $config_host_mak
6642 fi
6643 if test "$vdi" = "yes" ; then
6644   echo "CONFIG_VDI=y" >> $config_host_mak
6645 fi
6646 if test "$vvfat" = "yes" ; then
6647   echo "CONFIG_VVFAT=y" >> $config_host_mak
6648 fi
6649 if test "$qed" = "yes" ; then
6650   echo "CONFIG_QED=y" >> $config_host_mak
6651 fi
6652 if test "$parallels" = "yes" ; then
6653   echo "CONFIG_PARALLELS=y" >> $config_host_mak
6654 fi
6655 if test "$sheepdog" = "yes" ; then
6656   add_to deprecated_features "sheepdog"
6657   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
6658 fi
6659 if test "$pty_h" = "yes" ; then
6660   echo "HAVE_PTY_H=y" >> $config_host_mak
6661 fi
6662 if test "$have_mlockall" = "yes" ; then
6663   echo "HAVE_MLOCKALL=y" >> $config_host_mak
6664 fi
6665 if test "$fuzzing" = "yes" ; then
6666   # If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
6667   # needed CFLAGS have already been provided
6668   if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
6669     QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
6670     FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
6671   else
6672     FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
6673   fi
6674 fi
6675
6676 if test "$plugins" = "yes" ; then
6677     echo "CONFIG_PLUGIN=y" >> $config_host_mak
6678     # Copy the export object list to the build dir
6679     if test "$ld_dynamic_list" = "yes" ; then
6680         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
6681         ld_symbols=qemu-plugins-ld.symbols
6682         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
6683     elif test "$ld_exported_symbols_list" = "yes" ; then
6684         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
6685         ld64_symbols=qemu-plugins-ld64.symbols
6686         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
6687         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
6688             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
6689     else
6690         error_exit \
6691             "If \$plugins=yes, either \$ld_dynamic_list or " \
6692             "\$ld_exported_symbols_list should have been set to 'yes'."
6693     fi
6694 fi
6695
6696 if test -n "$gdb_bin" ; then
6697     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
6698 fi
6699
6700 if test "$secret_keyring" = "yes" ; then
6701   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
6702 fi
6703
6704 echo "ROMS=$roms" >> $config_host_mak
6705 echo "MAKE=$make" >> $config_host_mak
6706 echo "PYTHON=$python" >> $config_host_mak
6707 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
6708 echo "MESON=$meson" >> $config_host_mak
6709 echo "NINJA=$ninja" >> $config_host_mak
6710 echo "CC=$cc" >> $config_host_mak
6711 if $iasl -h > /dev/null 2>&1; then
6712   echo "CONFIG_IASL=$iasl" >> $config_host_mak
6713 fi
6714 echo "CXX=$cxx" >> $config_host_mak
6715 echo "OBJCC=$objcc" >> $config_host_mak
6716 echo "AR=$ar" >> $config_host_mak
6717 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
6718 echo "AS=$as" >> $config_host_mak
6719 echo "CCAS=$ccas" >> $config_host_mak
6720 echo "CPP=$cpp" >> $config_host_mak
6721 echo "OBJCOPY=$objcopy" >> $config_host_mak
6722 echo "LD=$ld" >> $config_host_mak
6723 echo "RANLIB=$ranlib" >> $config_host_mak
6724 echo "NM=$nm" >> $config_host_mak
6725 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
6726 echo "WINDRES=$windres" >> $config_host_mak
6727 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
6728 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
6729 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
6730 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
6731 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
6732 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
6733 echo "LDFLAGS_NOPIE=$LDFLAGS_NOPIE" >> $config_host_mak
6734 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
6735 echo "EXESUF=$EXESUF" >> $config_host_mak
6736 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
6737 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
6738 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
6739 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
6740 if test "$gcov" = "yes" ; then
6741   echo "CONFIG_GCOV=y" >> $config_host_mak
6742 fi
6743
6744 if test "$fuzzing" != "no"; then
6745     echo "CONFIG_FUZZ=y" >> $config_host_mak
6746 fi
6747 echo "FUZZ_EXE_LDFLAGS=$FUZZ_EXE_LDFLAGS" >> $config_host_mak
6748
6749 if test "$rng_none" = "yes"; then
6750   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
6751 fi
6752
6753 # use included Linux headers
6754 if test "$linux" = "yes" ; then
6755   mkdir -p linux-headers
6756   case "$cpu" in
6757   i386|x86_64|x32)
6758     linux_arch=x86
6759     ;;
6760   ppc|ppc64|ppc64le)
6761     linux_arch=powerpc
6762     ;;
6763   s390x)
6764     linux_arch=s390
6765     ;;
6766   aarch64)
6767     linux_arch=arm64
6768     ;;
6769   mips64)
6770     linux_arch=mips
6771     ;;
6772   *)
6773     # For most CPUs the kernel architecture name and QEMU CPU name match.
6774     linux_arch="$cpu"
6775     ;;
6776   esac
6777     # For non-KVM architectures we will not have asm headers
6778     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
6779       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
6780     fi
6781 fi
6782
6783 for target in $target_list; do
6784     target_dir="$target"
6785     target_name=$(echo $target | cut -d '-' -f 1)
6786     mkdir -p $target_dir
6787     case $target in
6788         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
6789         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
6790     esac
6791 done
6792
6793 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
6794 if test "$default_targets" = "yes"; then
6795   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
6796 fi
6797
6798 if test "$numa" = "yes"; then
6799   echo "CONFIG_NUMA=y" >> $config_host_mak
6800   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
6801 fi
6802
6803 if test "$ccache_cpp2" = "yes"; then
6804   echo "export CCACHE_CPP2=y" >> $config_host_mak
6805 fi
6806
6807 if test "$safe_stack" = "yes"; then
6808   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
6809 fi
6810
6811 # If we're using a separate build tree, set it up now.
6812 # DIRS are directories which we simply mkdir in the build tree;
6813 # LINKS are things to symlink back into the source tree
6814 # (these can be both files and directories).
6815 # Caution: do not add files or directories here using wildcards. This
6816 # will result in problems later if a new file matching the wildcard is
6817 # added to the source tree -- nothing will cause configure to be rerun
6818 # so the build tree will be missing the link back to the new file, and
6819 # tests might fail. Prefer to keep the relevant files in their own
6820 # directory and symlink the directory instead.
6821 # UNLINK is used to remove symlinks from older development versions
6822 # that might get into the way when doing "git update" without doing
6823 # a "make distclean" in between.
6824 DIRS="tests tests/tcg tests/tcg/lm32 tests/qapi-schema tests/qtest/libqos"
6825 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
6826 DIRS="$DIRS docs docs/interop fsdev scsi"
6827 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
6828 DIRS="$DIRS roms/seabios"
6829 DIRS="$DIRS contrib/plugins/"
6830 LINKS="Makefile"
6831 LINKS="$LINKS tests/tcg/lm32/Makefile"
6832 LINKS="$LINKS tests/tcg/Makefile.target"
6833 LINKS="$LINKS pc-bios/optionrom/Makefile"
6834 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
6835 LINKS="$LINKS roms/seabios/Makefile"
6836 LINKS="$LINKS pc-bios/qemu-icon.bmp"
6837 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
6838 LINKS="$LINKS tests/acceptance tests/data"
6839 LINKS="$LINKS tests/qemu-iotests/check"
6840 LINKS="$LINKS python"
6841 LINKS="$LINKS contrib/plugins/Makefile "
6842 UNLINK="pc-bios/keymaps"
6843 for bios_file in \
6844     $source_path/pc-bios/*.bin \
6845     $source_path/pc-bios/*.elf \
6846     $source_path/pc-bios/*.lid \
6847     $source_path/pc-bios/*.rom \
6848     $source_path/pc-bios/*.dtb \
6849     $source_path/pc-bios/*.img \
6850     $source_path/pc-bios/openbios-* \
6851     $source_path/pc-bios/u-boot.* \
6852     $source_path/pc-bios/edk2-*.fd.bz2 \
6853     $source_path/pc-bios/palcode-*
6854 do
6855     LINKS="$LINKS pc-bios/$(basename $bios_file)"
6856 done
6857 mkdir -p $DIRS
6858 for f in $LINKS ; do
6859     if [ -e "$source_path/$f" ]; then
6860         symlink "$source_path/$f" "$f"
6861     fi
6862 done
6863 for f in $UNLINK ; do
6864     if [ -L "$f" ]; then
6865         rm -f "$f"
6866     fi
6867 done
6868
6869 (for i in $cross_cc_vars; do
6870   export $i
6871 done
6872 export target_list source_path use_containers
6873 $source_path/tests/tcg/configure.sh)
6874
6875 # temporary config to build submodules
6876 for rom in seabios; do
6877     config_mak=roms/$rom/config.mak
6878     echo "# Automatically generated by configure - do not modify" > $config_mak
6879     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
6880     echo "AS=$as" >> $config_mak
6881     echo "CCAS=$ccas" >> $config_mak
6882     echo "CC=$cc" >> $config_mak
6883     echo "BCC=bcc" >> $config_mak
6884     echo "CPP=$cpp" >> $config_mak
6885     echo "OBJCOPY=objcopy" >> $config_mak
6886     echo "IASL=$iasl" >> $config_mak
6887     echo "LD=$ld" >> $config_mak
6888     echo "RANLIB=$ranlib" >> $config_mak
6889 done
6890
6891 # set up qemu-iotests in this build directory
6892 iotests_common_env="tests/qemu-iotests/common.env"
6893
6894 echo "# Automatically generated by configure - do not modify" > "$iotests_common_env"
6895 echo >> "$iotests_common_env"
6896 echo "export PYTHON='$python'" >> "$iotests_common_env"
6897
6898 if test "$skip_meson" = no; then
6899 cross="config-meson.cross.new"
6900 meson_quote() {
6901     echo "'$(echo $* | sed "s/ /','/g")'"
6902 }
6903
6904 echo "# Automatically generated by configure - do not modify" > $cross
6905 echo "[properties]" >> $cross
6906 test -z "$cxx" && echo "link_language = 'c'" >> $cross
6907 echo "[built-in options]" >> $cross
6908 echo "c_args = [${CFLAGS:+$(meson_quote $CFLAGS)}]" >> $cross
6909 echo "cpp_args = [${CXXFLAGS:+$(meson_quote $CXXFLAGS)}]" >> $cross
6910 echo "c_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6911 echo "cpp_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6912 echo "[binaries]" >> $cross
6913 echo "c = [$(meson_quote $cc)]" >> $cross
6914 test -n "$cxx" && echo "cpp = [$(meson_quote $cxx)]" >> $cross
6915 echo "ar = [$(meson_quote $ar)]" >> $cross
6916 echo "nm = [$(meson_quote $nm)]" >> $cross
6917 echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
6918 echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
6919 if has $sdl2_config; then
6920   echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
6921 fi
6922 echo "strip = [$(meson_quote $strip)]" >> $cross
6923 echo "windres = [$(meson_quote $windres)]" >> $cross
6924 if test -n "$cross_prefix"; then
6925     cross_arg="--cross-file config-meson.cross"
6926     echo "[host_machine]" >> $cross
6927     if test "$mingw32" = "yes" ; then
6928         echo "system = 'windows'" >> $cross
6929     fi
6930     if test "$linux" = "yes" ; then
6931         echo "system = 'linux'" >> $cross
6932     fi
6933     case "$ARCH" in
6934         i386|x86_64)
6935             echo "cpu_family = 'x86'" >> $cross
6936             ;;
6937         ppc64le)
6938             echo "cpu_family = 'ppc64'" >> $cross
6939             ;;
6940         *)
6941             echo "cpu_family = '$ARCH'" >> $cross
6942             ;;
6943     esac
6944     echo "cpu = '$cpu'" >> $cross
6945     if test "$bigendian" = "yes" ; then
6946         echo "endian = 'big'" >> $cross
6947     else
6948         echo "endian = 'little'" >> $cross
6949     fi
6950 else
6951     cross_arg="--native-file config-meson.cross"
6952 fi
6953 mv $cross config-meson.cross
6954
6955 rm -rf meson-private meson-info meson-logs
6956 NINJA=$ninja $meson setup \
6957         --prefix "$prefix" \
6958         --libdir "$libdir" \
6959         --libexecdir "$libexecdir" \
6960         --bindir "$bindir" \
6961         --includedir "$includedir" \
6962         --datadir "$datadir" \
6963         --mandir "$mandir" \
6964         --sysconfdir "$sysconfdir" \
6965         --localedir "$localedir" \
6966         --localstatedir "$local_statedir" \
6967         -Ddocdir="$docdir" \
6968         -Dqemu_firmwarepath="$firmwarepath" \
6969         -Dqemu_suffix="$qemu_suffix" \
6970         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
6971         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
6972         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
6973         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
6974         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
6975         -Db_staticpic=$(if test "$pie" = yes; then echo true; else echo false; fi) \
6976         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
6977         -Dmalloc=$malloc -Dmalloc_trim=$malloc_trim -Dsparse=$sparse \
6978         -Dkvm=$kvm -Dhax=$hax -Dwhpx=$whpx -Dhvf=$hvf \
6979         -Dxen=$xen -Dxen_pci_passthrough=$xen_pci_passthrough -Dtcg=$tcg \
6980         -Dcocoa=$cocoa -Dmpath=$mpath -Dsdl=$sdl -Dsdl_image=$sdl_image \
6981         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
6982         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f -Dvirtiofsd=$virtiofsd \
6983         -Dcapstone=$capstone -Dslirp=$slirp -Dfdt=$fdt \
6984         -Diconv=$iconv -Dcurses=$curses -Dlibudev=$libudev\
6985         -Ddocs=$docs -Dsphinx_build=$sphinx_build -Dinstall_blobs=$blobs \
6986         $cross_arg \
6987         "$PWD" "$source_path"
6988
6989 if test "$?" -ne 0 ; then
6990     error_exit "meson setup failed"
6991 fi
6992 fi
6993
6994 if test -n "${deprecated_features}"; then
6995     echo "Warning, deprecated features enabled."
6996     echo "Please see docs/system/deprecated.rst"
6997     echo "  features: ${deprecated_features}"
6998 fi
6999
7000 # Save the configure command line for later reuse.
7001 cat <<EOD >config.status
7002 #!/bin/sh
7003 # Generated by configure.
7004 # Run this file to recreate the current configuration.
7005 # Compiler output produced by configure, useful for debugging
7006 # configure, is in config.log if it exists.
7007 EOD
7008
7009 preserve_env() {
7010     envname=$1
7011
7012     eval envval=\$$envname
7013
7014     if test -n "$envval"
7015     then
7016         echo "$envname='$envval'" >> config.status
7017         echo "export $envname" >> config.status
7018     else
7019         echo "unset $envname" >> config.status
7020     fi
7021 }
7022
7023 # Preserve various env variables that influence what
7024 # features/build target configure will detect
7025 preserve_env AR
7026 preserve_env AS
7027 preserve_env CC
7028 preserve_env CPP
7029 preserve_env CXX
7030 preserve_env INSTALL
7031 preserve_env LD
7032 preserve_env LD_LIBRARY_PATH
7033 preserve_env LIBTOOL
7034 preserve_env MAKE
7035 preserve_env NM
7036 preserve_env OBJCOPY
7037 preserve_env PATH
7038 preserve_env PKG_CONFIG
7039 preserve_env PKG_CONFIG_LIBDIR
7040 preserve_env PKG_CONFIG_PATH
7041 preserve_env PYTHON
7042 preserve_env SDL2_CONFIG
7043 preserve_env SMBD
7044 preserve_env STRIP
7045 preserve_env WINDRES
7046
7047 printf "exec" >>config.status
7048 for i in "$0" "$@"; do
7049   test "$i" = --skip-meson || printf " '%s'" "$i" >>config.status
7050 done
7051 echo ' "$@"' >>config.status
7052 chmod +x config.status
7053
7054 rm -r "$TMPDIR1"