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="no"
 332 vhost_user_blk_server="auto"
 333 vhost_user_fs=""
 334 kvm="auto"
 335 hax="auto"
 336 hvf="auto"
 337 whpx="auto"
 338 rdma=""
 339 pvrdma=""
 340 gprof="no"
 341 debug_tcg="no"
 342 debug="no"
 343 sanitizers="no"
 344 tsan="no"
 345 fortify_source=""
 346 strip_opt="yes"
 347 tcg_interpreter="no"
 348 bigendian="no"
 349 mingw32="no"
 350 gcov="no"
 351 EXESUF=""
 352 HOST_DSOSUF=".so"
 353 modules="no"
 354 module_upgrades="no"
 355 prefix="/usr/local"
 356 qemu_suffix="qemu"
 357 slirp="auto"
 358 oss_lib=""
 359 bsd="no"
 360 linux="no"
 361 solaris="no"
 362 profiler="no"
 363 cocoa="auto"
 364 softmmu="yes"
 365 linux_user="no"
 366 bsd_user="no"
 367 blobs="true"
 368 pkgversion=""
 369 pie=""
 370 qom_cast_debug="yes"
 371 trace_backends="log"
 372 trace_file="trace"
 373 spice=""
 374 rbd=""
 375 smartcard=""
 376 u2f="auto"
 377 libusb=""
 378 usb_redir=""
 379 opengl=""
 380 opengl_dmabuf="no"
 381 cpuid_h="no"
 382 avx2_opt=""
 383 capstone="auto"
 384 lzo=""
 385 snappy=""
 386 bzip2=""
 387 lzfse=""
 388 zstd=""
 389 guest_agent=""
 390 guest_agent_with_vss="no"
 391 guest_agent_ntddscsi="no"
 392 guest_agent_msi=""
 393 vss_win32_sdk=""
 394 win_sdk="no"
 395 want_tools=""
 396 libiscsi=""
 397 libnfs=""
 398 coroutine=""
 399 coroutine_pool=""
 400 debug_stack_usage="no"
 401 crypto_afalg="no"
 402 seccomp=""
 403 glusterfs=""
 404 glusterfs_xlator_opt="no"
 405 glusterfs_discard="no"
 406 glusterfs_fallocate="no"
 407 glusterfs_zerofill="no"
 408 glusterfs_ftruncate_has_stat="no"
 409 glusterfs_iocb_has_stat="no"
 410 gtk=""
 411 gtk_gl="no"
 412 tls_priority="NORMAL"
 413 gnutls=""
 414 nettle=""
 415 nettle_xts="no"
 416 gcrypt=""
 417 gcrypt_hmac="no"
 418 gcrypt_xts="no"
 419 qemu_private_xts="yes"
 420 auth_pam=""
 421 vte=""
 422 virglrenderer=""
 423 tpm=""
 424 libssh=""
 425 live_block_migration="yes"
 426 numa=""
 427 tcmalloc="no"
 428 jemalloc="no"
 429 replication="yes"
 430 bochs="yes"
 431 cloop="yes"
 432 dmg="yes"
 433 qcow1="yes"
 434 vdi="yes"
 435 vvfat="yes"
 436 qed="yes"
 437 parallels="yes"
 438 sheepdog="no"
 439 libxml2=""
 440 debug_mutex="no"
 441 libpmem=""
 442 default_devices="yes"
 443 plugins="no"
 444 fuzzing="no"
 445 rng_none="no"
 446 secret_keyring=""
 447 libdaxctl=""
 448 meson=""
 449 ninja=""
 450 skip_meson=no
 451 gettext="auto"
 452 fuse="auto"
 453 fuse_lseek="auto"
 454
 455 bogus_os="no"
 456 malloc_trim="auto"
 457
 458 # parse CC options first
 459 for opt do
 460   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 461   case "$opt" in
 462   --cross-prefix=*) cross_prefix="$optarg"
 463   ;;
 464   --cc=*) CC="$optarg"
 465   ;;
 466   --cxx=*) CXX="$optarg"
 467   ;;
 468   --cpu=*) cpu="$optarg"
 469   ;;
 470   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 471                     QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 472   ;;
 473   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 474   ;;
 475   --extra-ldflags=*) QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 476                      EXTRA_LDFLAGS="$optarg"
 477   ;;
 478   --enable-debug-info) debug_info="yes"
 479   ;;
 480   --disable-debug-info) debug_info="no"
 481   ;;
 482   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 483   ;;
 484   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 485                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 486                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 487   ;;
 488   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 489                 cc_archs="$cc_archs $cc_arch"
 490                 eval "cross_cc_${cc_arch}=\$optarg"
 491                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 492   ;;
 493   esac
 494 done
 495 # OS specific
 496 # Using uname is really, really broken.  Once we have the right set of checks
 497 # we can eliminate its usage altogether.
 498
 499 # Preferred compiler:
 500 #  ${CC} (if set)
 501 #  ${cross_prefix}gcc (if cross-prefix specified)
 502 #  system compiler
 503 if test -z "${CC}${cross_prefix}"; then
 504   cc="$host_cc"
 505 else
 506   cc="${CC-${cross_prefix}gcc}"
 507 fi
 508
 509 if test -z "${CXX}${cross_prefix}"; then
 510   cxx="c++"
 511 else
 512   cxx="${CXX-${cross_prefix}g++}"
 513 fi
 514
 515 ar="${AR-${cross_prefix}ar}"
 516 as="${AS-${cross_prefix}as}"
 517 ccas="${CCAS-$cc}"
 518 cpp="${CPP-$cc -E}"
 519 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 520 ld="${LD-${cross_prefix}ld}"
 521 ranlib="${RANLIB-${cross_prefix}ranlib}"
 522 nm="${NM-${cross_prefix}nm}"
 523 strip="${STRIP-${cross_prefix}strip}"
 524 windres="${WINDRES-${cross_prefix}windres}"
 525 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 526 query_pkg_config() {
 527     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 528 }
 529 pkg_config=query_pkg_config
 530 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 531
 532 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 533 ARFLAGS="${ARFLAGS-rv}"
 534
 535 # default flags for all hosts
 536 # We use -fwrapv to tell the compiler that we require a C dialect where
 537 # left shift of signed integers is well defined and has the expected
 538 # 2s-complement style results. (Both clang and gcc agree that it
 539 # provides these semantics.)
 540 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
 541 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 542 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 543 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 544
 545 # Flags that are needed during configure but later taken care of by Meson
 546 CONFIGURE_CFLAGS="-std=gnu99 -Wall"
 547 CONFIGURE_LDFLAGS=
 548
 549
 550 check_define() {
 551 cat > $TMPC <<EOF
 552 #if !defined($1)
 553 #error $1 not defined
 554 #endif
 555 int main(void) { return 0; }
 556 EOF
 557   compile_object
 558 }
 559
 560 check_include() {
 561 cat > $TMPC <<EOF
 562 #include <$1>
 563 int main(void) { return 0; }
 564 EOF
 565   compile_object
 566 }
 567
 568 write_c_skeleton() {
 569     cat > $TMPC <<EOF
 570 int main(void) { return 0; }
 571 EOF
 572 }
 573
 574 write_c_fuzzer_skeleton() {
 575     cat > $TMPC <<EOF
 576 #include <stdint.h>
 577 #include <sys/types.h>
 578 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 579 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 580 EOF
 581 }
 582
 583 if check_define __linux__ ; then
 584   targetos="Linux"
 585 elif check_define _WIN32 ; then
 586   targetos='MINGW32'
 587 elif check_define __OpenBSD__ ; then
 588   targetos='OpenBSD'
 589 elif check_define __sun__ ; then
 590   targetos='SunOS'
 591 elif check_define __HAIKU__ ; then
 592   targetos='Haiku'
 593 elif check_define __FreeBSD__ ; then
 594   targetos='FreeBSD'
 595 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 596   targetos='GNU/kFreeBSD'
 597 elif check_define __DragonFly__ ; then
 598   targetos='DragonFly'
 599 elif check_define __NetBSD__; then
 600   targetos='NetBSD'
 601 elif check_define __APPLE__; then
 602   targetos='Darwin'
 603 else
 604   # This is a fatal error, but don't report it yet, because we
 605   # might be going to just print the --help text, or it might
 606   # be the result of a missing compiler.
 607   targetos='bogus'
 608   bogus_os='yes'
 609 fi
 610
 611 # Some host OSes need non-standard checks for which CPU to use.
 612 # Note that these checks are broken for cross-compilation: if you're
 613 # cross-compiling to one of these OSes then you'll need to specify
 614 # the correct CPU with the --cpu option.
 615 case $targetos in
 616 Darwin)
 617   # on Leopard most of the system is 32-bit, so we have to ask the kernel if we can
 618   # run 64-bit userspace code.
 619   # If the user didn't specify a CPU explicitly and the kernel says this is
 620   # 64 bit hw, then assume x86_64. Otherwise fall through to the usual detection code.
 621   if test -z "$cpu" && test "$(sysctl -n hw.optional.x86_64)" = "1"; then
 622     cpu="x86_64"
 623   fi
 624   HOST_DSOSUF=".dylib"
 625   ;;
 626 SunOS)
 627   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 628   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 629     cpu="x86_64"
 630   fi
 631 esac
 632
 633 if test ! -z "$cpu" ; then
 634   # command line argument
 635   :
 636 elif check_define __i386__ ; then
 637   cpu="i386"
 638 elif check_define __x86_64__ ; then
 639   if check_define __ILP32__ ; then
 640     cpu="x32"
 641   else
 642     cpu="x86_64"
 643   fi
 644 elif check_define __sparc__ ; then
 645   if check_define __arch64__ ; then
 646     cpu="sparc64"
 647   else
 648     cpu="sparc"
 649   fi
 650 elif check_define _ARCH_PPC ; then
 651   if check_define _ARCH_PPC64 ; then
 652     if check_define _LITTLE_ENDIAN ; then
 653       cpu="ppc64le"
 654     else
 655       cpu="ppc64"
 656     fi
 657   else
 658     cpu="ppc"
 659   fi
 660 elif check_define __mips__ ; then
 661   cpu="mips"
 662 elif check_define __s390__ ; then
 663   if check_define __s390x__ ; then
 664     cpu="s390x"
 665   else
 666     cpu="s390"
 667   fi
 668 elif check_define __riscv ; then
 669   if check_define _LP64 ; then
 670     cpu="riscv64"
 671   else
 672     cpu="riscv32"
 673   fi
 674 elif check_define __arm__ ; then
 675   cpu="arm"
 676 elif check_define __aarch64__ ; then
 677   cpu="aarch64"
 678 else
 679   cpu=$(uname -m)
 680 fi
 681
 682 ARCH=
 683 # Normalise host CPU name and set ARCH.
 684 # Note that this case should only have supported host CPUs, not guests.
 685 case "$cpu" in
 686   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 687   ;;
 688   ppc64le)
 689     ARCH="ppc64"
 690   ;;
 691   i386|i486|i586|i686|i86pc|BePC)
 692     cpu="i386"
 693   ;;
 694   x86_64|amd64)
 695     cpu="x86_64"
 696   ;;
 697   armv*b|armv*l|arm)
 698     cpu="arm"
 699   ;;
 700   aarch64)
 701     cpu="aarch64"
 702   ;;
 703   mips*)
 704     cpu="mips"
 705   ;;
 706   sparc|sun4[cdmuv])
 707     cpu="sparc"
 708   ;;
 709   *)
 710     # This will result in either an error or falling back to TCI later
 711     ARCH=unknown
 712   ;;
 713 esac
 714 if test -z "$ARCH"; then
 715   ARCH="$cpu"
 716 fi
 717
 718 # OS specific
 719
 720 case $targetos in
 721 MINGW32*)
 722   mingw32="yes"
 723   audio_possible_drivers="dsound sdl"
 724   if check_include dsound.h; then
 725     audio_drv_list="dsound"
 726   else
 727     audio_drv_list=""
 728   fi
 729   supported_os="yes"
 730   pie="no"
 731 ;;
 732 GNU/kFreeBSD)
 733   bsd="yes"
 734   audio_drv_list="oss try-sdl"
 735   audio_possible_drivers="oss sdl pa"
 736 ;;
 737 FreeBSD)
 738   bsd="yes"
 739   make="${MAKE-gmake}"
 740   audio_drv_list="oss try-sdl"
 741   audio_possible_drivers="oss sdl pa"
 742   # needed for kinfo_getvmmap(3) in libutil.h
 743   netmap=""  # enable netmap autodetect
 744 ;;
 745 DragonFly)
 746   bsd="yes"
 747   make="${MAKE-gmake}"
 748   audio_drv_list="oss try-sdl"
 749   audio_possible_drivers="oss sdl pa"
 750 ;;
 751 NetBSD)
 752   bsd="yes"
 753   make="${MAKE-gmake}"
 754   audio_drv_list="oss try-sdl"
 755   audio_possible_drivers="oss sdl"
 756   oss_lib="-lossaudio"
 757 ;;
 758 OpenBSD)
 759   bsd="yes"
 760   make="${MAKE-gmake}"
 761   audio_drv_list="try-sdl"
 762   audio_possible_drivers="sdl"
 763 ;;
 764 Darwin)
 765   bsd="yes"
 766   darwin="yes"
 767   if [ "$cpu" = "x86_64" ] ; then
 768     QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
 769     QEMU_LDFLAGS="-arch x86_64 $QEMU_LDFLAGS"
 770   fi
 771   cocoa="enabled"
 772   audio_drv_list="coreaudio try-sdl"
 773   audio_possible_drivers="coreaudio sdl"
 774   QEMU_LDFLAGS="-framework CoreFoundation -framework IOKit $QEMU_LDFLAGS"
 775   # Disable attempts to use ObjectiveC features in os/object.h since they
 776   # won't work when we're compiling with gcc as a C compiler.
 777   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 778 ;;
 779 SunOS)
 780   solaris="yes"
 781   make="${MAKE-gmake}"
 782   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 783   if test -f /usr/include/sys/soundcard.h ; then
 784     audio_drv_list="oss try-sdl"
 785   fi
 786   audio_possible_drivers="oss sdl"
 787 # needed for CMSG_ macros in sys/socket.h
 788   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 789 # needed for TIOCWIN* defines in termios.h
 790   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 791 ;;
 792 Haiku)
 793   haiku="yes"
 794   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE $QEMU_CFLAGS"
 795 ;;
 796 Linux)
 797   audio_drv_list="try-pa oss"
 798   audio_possible_drivers="oss alsa sdl pa"
 799   linux="yes"
 800   linux_user="yes"
 801   vhost_user="yes"
 802 ;;
 803 esac
 804
 805 if [ "$bsd" = "yes" ] ; then
 806   if [ "$darwin" != "yes" ] ; then
 807     bsd_user="yes"
 808   fi
 809 fi
 810
 811 : ${make=${MAKE-make}}
 812
 813 # We prefer python 3.x. A bare 'python' is traditionally
 814 # python 2.x, but some distros have it as python 3.x, so
 815 # we check that too
 816 python=
 817 explicit_python=no
 818 for binary in "${PYTHON-python3}" python
 819 do
 820     if has "$binary"
 821     then
 822         python=$(command -v "$binary")
 823         break
 824     fi
 825 done
 826
 827
 828 # Check for ancillary tools used in testing
 829 genisoimage=
 830 for binary in genisoimage mkisofs
 831 do
 832     if has $binary
 833     then
 834         genisoimage=$(command -v "$binary")
 835         break
 836     fi
 837 done
 838
 839 : ${smbd=${SMBD-/usr/sbin/smbd}}
 840
 841 # Default objcc to clang if available, otherwise use CC
 842 if has clang; then
 843   objcc=clang
 844 else
 845   objcc="$cc"
 846 fi
 847
 848 if test "$mingw32" = "yes" ; then
 849   EXESUF=".exe"
 850   HOST_DSOSUF=".dll"
 851   # MinGW needs -mthreads for TLS and macro _MT.
 852   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 853   write_c_skeleton;
 854   prefix="/qemu"
 855   qemu_suffix=""
 856   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 857 fi
 858
 859 werror=""
 860
 861 for opt do
 862   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 863   case "$opt" in
 864   --help|-h) show_help=yes
 865   ;;
 866   --version|-V) exec cat $source_path/VERSION
 867   ;;
 868   --prefix=*) prefix="$optarg"
 869   ;;
 870   --interp-prefix=*) interp_prefix="$optarg"
 871   ;;
 872   --cross-prefix=*)
 873   ;;
 874   --cc=*)
 875   ;;
 876   --host-cc=*) host_cc="$optarg"
 877   ;;
 878   --cxx=*)
 879   ;;
 880   --iasl=*) iasl="$optarg"
 881   ;;
 882   --objcc=*) objcc="$optarg"
 883   ;;
 884   --make=*) make="$optarg"
 885   ;;
 886   --install=*)
 887   ;;
 888   --python=*) python="$optarg" ; explicit_python=yes
 889   ;;
 890   --sphinx-build=*) sphinx_build="$optarg"
 891   ;;
 892   --skip-meson) skip_meson=yes
 893   ;;
 894   --meson=*) meson="$optarg"
 895   ;;
 896   --ninja=*) ninja="$optarg"
 897   ;;
 898   --smbd=*) smbd="$optarg"
 899   ;;
 900   --extra-cflags=*)
 901   ;;
 902   --extra-cxxflags=*)
 903   ;;
 904   --extra-ldflags=*)
 905   ;;
 906   --enable-debug-info)
 907   ;;
 908   --disable-debug-info)
 909   ;;
 910   --cross-cc-*)
 911   ;;
 912   --enable-modules)
 913       modules="yes"
 914   ;;
 915   --disable-modules)
 916       modules="no"
 917   ;;
 918   --disable-module-upgrades) module_upgrades="no"
 919   ;;
 920   --enable-module-upgrades) module_upgrades="yes"
 921   ;;
 922   --cpu=*)
 923   ;;
 924   --target-list=*) target_list="$optarg"
 925                    if test "$target_list_exclude"; then
 926                        error_exit "Can't mix --target-list with --target-list-exclude"
 927                    fi
 928   ;;
 929   --target-list-exclude=*) target_list_exclude="$optarg"
 930                    if test "$target_list"; then
 931                        error_exit "Can't mix --target-list-exclude with --target-list"
 932                    fi
 933   ;;
 934   --enable-trace-backends=*) trace_backends="$optarg"
 935   ;;
 936   # XXX: backwards compatibility
 937   --enable-trace-backend=*) trace_backends="$optarg"
 938   ;;
 939   --with-trace-file=*) trace_file="$optarg"
 940   ;;
 941   --with-default-devices) default_devices="yes"
 942   ;;
 943   --without-default-devices) default_devices="no"
 944   ;;
 945   --enable-gprof) gprof="yes"
 946   ;;
 947   --enable-gcov) gcov="yes"
 948   ;;
 949   --static)
 950     static="yes"
 951     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 952   ;;
 953   --mandir=*) mandir="$optarg"
 954   ;;
 955   --bindir=*) bindir="$optarg"
 956   ;;
 957   --libdir=*) libdir="$optarg"
 958   ;;
 959   --libexecdir=*) libexecdir="$optarg"
 960   ;;
 961   --includedir=*) includedir="$optarg"
 962   ;;
 963   --datadir=*) datadir="$optarg"
 964   ;;
 965   --with-suffix=*) qemu_suffix="$optarg"
 966   ;;
 967   --docdir=*) docdir="$optarg"
 968   ;;
 969   --localedir=*) localedir="$optarg"
 970   ;;
 971   --sysconfdir=*) sysconfdir="$optarg"
 972   ;;
 973   --localstatedir=*) local_statedir="$optarg"
 974   ;;
 975   --firmwarepath=*) firmwarepath="$optarg"
 976   ;;
 977   --host=*|--build=*|\
 978   --disable-dependency-tracking|\
 979   --sbindir=*|--sharedstatedir=*|\
 980   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 981   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 982     # These switches are silently ignored, for compatibility with
 983     # autoconf-generated configure scripts. This allows QEMU's
 984     # configure to be used by RPM and similar macros that set
 985     # lots of directory switches by default.
 986   ;;
 987   --disable-sdl) sdl="disabled"
 988   ;;
 989   --enable-sdl) sdl="enabled"
 990   ;;
 991   --disable-sdl-image) sdl_image="disabled"
 992   ;;
 993   --enable-sdl-image) sdl_image="enabled"
 994   ;;
 995   --disable-qom-cast-debug) qom_cast_debug="no"
 996   ;;
 997   --enable-qom-cast-debug) qom_cast_debug="yes"
 998   ;;
 999   --disable-virtfs) virtfs="no"
1000   ;;
1001   --enable-virtfs) virtfs="yes"
1002   ;;
1003   --disable-libudev) libudev="disabled"
1004   ;;
1005   --enable-libudev) libudev="enabled"
1006   ;;
1007   --disable-virtiofsd) virtiofsd="disabled"
1008   ;;
1009   --enable-virtiofsd) virtiofsd="enabled"
1010   ;;
1011   --disable-mpath) mpath="disabled"
1012   ;;
1013   --enable-mpath) mpath="enabled"
1014   ;;
1015   --disable-vnc) vnc="disabled"
1016   ;;
1017   --enable-vnc) vnc="enabled"
1018   ;;
1019   --disable-gettext) gettext="disabled"
1020   ;;
1021   --enable-gettext) gettext="enabled"
1022   ;;
1023   --oss-lib=*) oss_lib="$optarg"
1024   ;;
1025   --audio-drv-list=*) audio_drv_list="$optarg"
1026   ;;
1027   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1028   ;;
1029   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1030   ;;
1031   --enable-debug-tcg) debug_tcg="yes"
1032   ;;
1033   --disable-debug-tcg) debug_tcg="no"
1034   ;;
1035   --enable-debug)
1036       # Enable debugging options that aren't excessively noisy
1037       debug_tcg="yes"
1038       debug_mutex="yes"
1039       debug="yes"
1040       strip_opt="no"
1041       fortify_source="no"
1042   ;;
1043   --enable-sanitizers) sanitizers="yes"
1044   ;;
1045   --disable-sanitizers) sanitizers="no"
1046   ;;
1047   --enable-tsan) tsan="yes"
1048   ;;
1049   --disable-tsan) tsan="no"
1050   ;;
1051   --enable-sparse) sparse="enabled"
1052   ;;
1053   --disable-sparse) sparse="disabled"
1054   ;;
1055   --disable-strip) strip_opt="no"
1056   ;;
1057   --disable-vnc-sasl) vnc_sasl="disabled"
1058   ;;
1059   --enable-vnc-sasl) vnc_sasl="enabled"
1060   ;;
1061   --disable-vnc-jpeg) vnc_jpeg="disabled"
1062   ;;
1063   --enable-vnc-jpeg) vnc_jpeg="enabled"
1064   ;;
1065   --disable-vnc-png) vnc_png="disabled"
1066   ;;
1067   --enable-vnc-png) vnc_png="enabled"
1068   ;;
1069   --disable-slirp) slirp="disabled"
1070   ;;
1071   --enable-slirp=git) slirp="internal"
1072   ;;
1073   --enable-slirp=system) slirp="system"
1074   ;;
1075   --disable-vde) vde="no"
1076   ;;
1077   --enable-vde) vde="yes"
1078   ;;
1079   --disable-netmap) netmap="no"
1080   ;;
1081   --enable-netmap) netmap="yes"
1082   ;;
1083   --disable-xen) xen="disabled"
1084   ;;
1085   --enable-xen) xen="enabled"
1086   ;;
1087   --disable-xen-pci-passthrough) xen_pci_passthrough="disabled"
1088   ;;
1089   --enable-xen-pci-passthrough) xen_pci_passthrough="enabled"
1090   ;;
1091   --disable-brlapi) brlapi="no"
1092   ;;
1093   --enable-brlapi) brlapi="yes"
1094   ;;
1095   --disable-kvm) kvm="disabled"
1096   ;;
1097   --enable-kvm) kvm="enabled"
1098   ;;
1099   --disable-hax) hax="disabled"
1100   ;;
1101   --enable-hax) hax="enabled"
1102   ;;
1103   --disable-hvf) hvf="disabled"
1104   ;;
1105   --enable-hvf) hvf="enabled"
1106   ;;
1107   --disable-whpx) whpx="disabled"
1108   ;;
1109   --enable-whpx) whpx="enabled"
1110   ;;
1111   --disable-tcg-interpreter) tcg_interpreter="no"
1112   ;;
1113   --enable-tcg-interpreter) tcg_interpreter="yes"
1114   ;;
1115   --disable-cap-ng)  cap_ng="no"
1116   ;;
1117   --enable-cap-ng) cap_ng="yes"
1118   ;;
1119   --disable-tcg) tcg="disabled"
1120   ;;
1121   --enable-tcg) tcg="enabled"
1122   ;;
1123   --disable-malloc-trim) malloc_trim="disabled"
1124   ;;
1125   --enable-malloc-trim) malloc_trim="enabled"
1126   ;;
1127   --disable-spice) spice="no"
1128   ;;
1129   --enable-spice) spice="yes"
1130   ;;
1131   --disable-libiscsi) libiscsi="no"
1132   ;;
1133   --enable-libiscsi) libiscsi="yes"
1134   ;;
1135   --disable-libnfs) libnfs="no"
1136   ;;
1137   --enable-libnfs) libnfs="yes"
1138   ;;
1139   --enable-profiler) profiler="yes"
1140   ;;
1141   --disable-cocoa) cocoa="disabled"
1142   ;;
1143   --enable-cocoa)
1144       cocoa="enabled" ;
1145       audio_drv_list="coreaudio $(echo $audio_drv_list | sed s,coreaudio,,g)"
1146   ;;
1147   --disable-system) softmmu="no"
1148   ;;
1149   --enable-system) softmmu="yes"
1150   ;;
1151   --disable-user)
1152       linux_user="no" ;
1153       bsd_user="no" ;
1154   ;;
1155   --enable-user) ;;
1156   --disable-linux-user) linux_user="no"
1157   ;;
1158   --enable-linux-user) linux_user="yes"
1159   ;;
1160   --disable-bsd-user) bsd_user="no"
1161   ;;
1162   --enable-bsd-user) bsd_user="yes"
1163   ;;
1164   --enable-pie) pie="yes"
1165   ;;
1166   --disable-pie) pie="no"
1167   ;;
1168   --enable-werror) werror="yes"
1169   ;;
1170   --disable-werror) werror="no"
1171   ;;
1172   --enable-stack-protector) stack_protector="yes"
1173   ;;
1174   --disable-stack-protector) stack_protector="no"
1175   ;;
1176   --enable-safe-stack) safe_stack="yes"
1177   ;;
1178   --disable-safe-stack) safe_stack="no"
1179   ;;
1180   --disable-curses) curses="disabled"
1181   ;;
1182   --enable-curses) curses="enabled"
1183   ;;
1184   --disable-iconv) iconv="disabled"
1185   ;;
1186   --enable-iconv) iconv="enabled"
1187   ;;
1188   --disable-curl) curl="no"
1189   ;;
1190   --enable-curl) curl="yes"
1191   ;;
1192   --disable-fdt) fdt="disabled"
1193   ;;
1194   --enable-fdt) fdt="enabled"
1195   ;;
1196   --enable-fdt=git) fdt="internal"
1197   ;;
1198   --enable-fdt=system) fdt="system"
1199   ;;
1200   --disable-linux-aio) linux_aio="no"
1201   ;;
1202   --enable-linux-aio) linux_aio="yes"
1203   ;;
1204   --disable-linux-io-uring) linux_io_uring="no"
1205   ;;
1206   --enable-linux-io-uring) linux_io_uring="yes"
1207   ;;
1208   --disable-attr) attr="no"
1209   ;;
1210   --enable-attr) attr="yes"
1211   ;;
1212   --disable-membarrier) membarrier="no"
1213   ;;
1214   --enable-membarrier) membarrier="yes"
1215   ;;
1216   --disable-blobs) blobs="false"
1217   ;;
1218   --with-pkgversion=*) pkgversion="$optarg"
1219   ;;
1220   --with-coroutine=*) coroutine="$optarg"
1221   ;;
1222   --disable-coroutine-pool) coroutine_pool="no"
1223   ;;
1224   --enable-coroutine-pool) coroutine_pool="yes"
1225   ;;
1226   --enable-debug-stack-usage) debug_stack_usage="yes"
1227   ;;
1228   --enable-crypto-afalg) crypto_afalg="yes"
1229   ;;
1230   --disable-crypto-afalg) crypto_afalg="no"
1231   ;;
1232   --disable-docs) docs="disabled"
1233   ;;
1234   --enable-docs) docs="enabled"
1235   ;;
1236   --disable-vhost-net) vhost_net="no"
1237   ;;
1238   --enable-vhost-net) vhost_net="yes"
1239   ;;
1240   --disable-vhost-crypto) vhost_crypto="no"
1241   ;;
1242   --enable-vhost-crypto) vhost_crypto="yes"
1243   ;;
1244   --disable-vhost-scsi) vhost_scsi="no"
1245   ;;
1246   --enable-vhost-scsi) vhost_scsi="yes"
1247   ;;
1248   --disable-vhost-vsock) vhost_vsock="no"
1249   ;;
1250   --enable-vhost-vsock) vhost_vsock="yes"
1251   ;;
1252   --disable-vhost-user-blk-server) vhost_user_blk_server="disabled"
1253   ;;
1254   --enable-vhost-user-blk-server) vhost_user_blk_server="enabled"
1255   ;;
1256   --disable-vhost-user-fs) vhost_user_fs="no"
1257   ;;
1258   --enable-vhost-user-fs) vhost_user_fs="yes"
1259   ;;
1260   --disable-opengl) opengl="no"
1261   ;;
1262   --enable-opengl) opengl="yes"
1263   ;;
1264   --disable-rbd) rbd="no"
1265   ;;
1266   --enable-rbd) rbd="yes"
1267   ;;
1268   --disable-xfsctl) xfs="no"
1269   ;;
1270   --enable-xfsctl) xfs="yes"
1271   ;;
1272   --disable-smartcard) smartcard="no"
1273   ;;
1274   --enable-smartcard) smartcard="yes"
1275   ;;
1276   --disable-u2f) u2f="disabled"
1277   ;;
1278   --enable-u2f) u2f="enabled"
1279   ;;
1280   --disable-libusb) libusb="no"
1281   ;;
1282   --enable-libusb) libusb="yes"
1283   ;;
1284   --disable-usb-redir) usb_redir="no"
1285   ;;
1286   --enable-usb-redir) usb_redir="yes"
1287   ;;
1288   --disable-zlib-test)
1289   ;;
1290   --disable-lzo) lzo="no"
1291   ;;
1292   --enable-lzo) lzo="yes"
1293   ;;
1294   --disable-snappy) snappy="no"
1295   ;;
1296   --enable-snappy) snappy="yes"
1297   ;;
1298   --disable-bzip2) bzip2="no"
1299   ;;
1300   --enable-bzip2) bzip2="yes"
1301   ;;
1302   --enable-lzfse) lzfse="yes"
1303   ;;
1304   --disable-lzfse) lzfse="no"
1305   ;;
1306   --disable-zstd) zstd="no"
1307   ;;
1308   --enable-zstd) zstd="yes"
1309   ;;
1310   --enable-guest-agent) guest_agent="yes"
1311   ;;
1312   --disable-guest-agent) guest_agent="no"
1313   ;;
1314   --enable-guest-agent-msi) guest_agent_msi="yes"
1315   ;;
1316   --disable-guest-agent-msi) guest_agent_msi="no"
1317   ;;
1318   --with-vss-sdk) vss_win32_sdk=""
1319   ;;
1320   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1321   ;;
1322   --without-vss-sdk) vss_win32_sdk="no"
1323   ;;
1324   --with-win-sdk) win_sdk=""
1325   ;;
1326   --with-win-sdk=*) win_sdk="$optarg"
1327   ;;
1328   --without-win-sdk) win_sdk="no"
1329   ;;
1330   --enable-tools) want_tools="yes"
1331   ;;
1332   --disable-tools) want_tools="no"
1333   ;;
1334   --enable-seccomp) seccomp="yes"
1335   ;;
1336   --disable-seccomp) seccomp="no"
1337   ;;
1338   --disable-glusterfs) glusterfs="no"
1339   ;;
1340   --disable-avx2) avx2_opt="no"
1341   ;;
1342   --enable-avx2) avx2_opt="yes"
1343   ;;
1344   --disable-avx512f) avx512f_opt="no"
1345   ;;
1346   --enable-avx512f) avx512f_opt="yes"
1347   ;;
1348
1349   --enable-glusterfs) glusterfs="yes"
1350   ;;
1351   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1352       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1353   ;;
1354   --enable-vhdx|--disable-vhdx)
1355       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1356   ;;
1357   --enable-uuid|--disable-uuid)
1358       echo "$0: $opt is obsolete, UUID support is always built" >&2
1359   ;;
1360   --disable-gtk) gtk="no"
1361   ;;
1362   --enable-gtk) gtk="yes"
1363   ;;
1364   --tls-priority=*) tls_priority="$optarg"
1365   ;;
1366   --disable-gnutls) gnutls="no"
1367   ;;
1368   --enable-gnutls) gnutls="yes"
1369   ;;
1370   --disable-nettle) nettle="no"
1371   ;;
1372   --enable-nettle) nettle="yes"
1373   ;;
1374   --disable-gcrypt) gcrypt="no"
1375   ;;
1376   --enable-gcrypt) gcrypt="yes"
1377   ;;
1378   --disable-auth-pam) auth_pam="no"
1379   ;;
1380   --enable-auth-pam) auth_pam="yes"
1381   ;;
1382   --enable-rdma) rdma="yes"
1383   ;;
1384   --disable-rdma) rdma="no"
1385   ;;
1386   --enable-pvrdma) pvrdma="yes"
1387   ;;
1388   --disable-pvrdma) pvrdma="no"
1389   ;;
1390   --disable-vte) vte="no"
1391   ;;
1392   --enable-vte) vte="yes"
1393   ;;
1394   --disable-virglrenderer) virglrenderer="no"
1395   ;;
1396   --enable-virglrenderer) virglrenderer="yes"
1397   ;;
1398   --disable-tpm) tpm="no"
1399   ;;
1400   --enable-tpm) tpm="yes"
1401   ;;
1402   --disable-libssh) libssh="no"
1403   ;;
1404   --enable-libssh) libssh="yes"
1405   ;;
1406   --disable-live-block-migration) live_block_migration="no"
1407   ;;
1408   --enable-live-block-migration) live_block_migration="yes"
1409   ;;
1410   --disable-numa) numa="no"
1411   ;;
1412   --enable-numa) numa="yes"
1413   ;;
1414   --disable-libxml2) libxml2="no"
1415   ;;
1416   --enable-libxml2) libxml2="yes"
1417   ;;
1418   --disable-tcmalloc) tcmalloc="no"
1419   ;;
1420   --enable-tcmalloc) tcmalloc="yes"
1421   ;;
1422   --disable-jemalloc) jemalloc="no"
1423   ;;
1424   --enable-jemalloc) jemalloc="yes"
1425   ;;
1426   --disable-replication) replication="no"
1427   ;;
1428   --enable-replication) replication="yes"
1429   ;;
1430   --disable-bochs) bochs="no"
1431   ;;
1432   --enable-bochs) bochs="yes"
1433   ;;
1434   --disable-cloop) cloop="no"
1435   ;;
1436   --enable-cloop) cloop="yes"
1437   ;;
1438   --disable-dmg) dmg="no"
1439   ;;
1440   --enable-dmg) dmg="yes"
1441   ;;
1442   --disable-qcow1) qcow1="no"
1443   ;;
1444   --enable-qcow1) qcow1="yes"
1445   ;;
1446   --disable-vdi) vdi="no"
1447   ;;
1448   --enable-vdi) vdi="yes"
1449   ;;
1450   --disable-vvfat) vvfat="no"
1451   ;;
1452   --enable-vvfat) vvfat="yes"
1453   ;;
1454   --disable-qed) qed="no"
1455   ;;
1456   --enable-qed) qed="yes"
1457   ;;
1458   --disable-parallels) parallels="no"
1459   ;;
1460   --enable-parallels) parallels="yes"
1461   ;;
1462   --disable-sheepdog) sheepdog="no"
1463   ;;
1464   --enable-sheepdog) sheepdog="yes"
1465   ;;
1466   --disable-vhost-user) vhost_user="no"
1467   ;;
1468   --enable-vhost-user) vhost_user="yes"
1469   ;;
1470   --disable-vhost-vdpa) vhost_vdpa="no"
1471   ;;
1472   --enable-vhost-vdpa) vhost_vdpa="yes"
1473   ;;
1474   --disable-vhost-kernel) vhost_kernel="no"
1475   ;;
1476   --enable-vhost-kernel) vhost_kernel="yes"
1477   ;;
1478   --disable-capstone) capstone="disabled"
1479   ;;
1480   --enable-capstone) capstone="enabled"
1481   ;;
1482   --enable-capstone=git) capstone="internal"
1483   ;;
1484   --enable-capstone=system) capstone="system"
1485   ;;
1486   --with-git=*) git="$optarg"
1487   ;;
1488   --enable-git-update) git_update=yes
1489   ;;
1490   --disable-git-update) git_update=no
1491   ;;
1492   --enable-debug-mutex) debug_mutex=yes
1493   ;;
1494   --disable-debug-mutex) debug_mutex=no
1495   ;;
1496   --enable-libpmem) libpmem=yes
1497   ;;
1498   --disable-libpmem) libpmem=no
1499   ;;
1500   --enable-xkbcommon) xkbcommon="enabled"
1501   ;;
1502   --disable-xkbcommon) xkbcommon="disabled"
1503   ;;
1504   --enable-plugins) plugins="yes"
1505   ;;
1506   --disable-plugins) plugins="no"
1507   ;;
1508   --enable-containers) use_containers="yes"
1509   ;;
1510   --disable-containers) use_containers="no"
1511   ;;
1512   --enable-fuzzing) fuzzing=yes
1513   ;;
1514   --disable-fuzzing) fuzzing=no
1515   ;;
1516   --gdb=*) gdb_bin="$optarg"
1517   ;;
1518   --enable-rng-none) rng_none=yes
1519   ;;
1520   --disable-rng-none) rng_none=no
1521   ;;
1522   --enable-keyring) secret_keyring="yes"
1523   ;;
1524   --disable-keyring) secret_keyring="no"
1525   ;;
1526   --enable-libdaxctl) libdaxctl=yes
1527   ;;
1528   --disable-libdaxctl) libdaxctl=no
1529   ;;
1530   --enable-fuse) fuse="enabled"
1531   ;;
1532   --disable-fuse) fuse="disabled"
1533   ;;
1534   --enable-fuse-lseek) fuse_lseek="enabled"
1535   ;;
1536   --disable-fuse-lseek) fuse_lseek="disabled"
1537   ;;
1538   *)
1539       echo "ERROR: unknown option $opt"
1540       echo "Try '$0 --help' for more information"
1541       exit 1
1542   ;;
1543   esac
1544 done
1545
1546 libdir="${libdir:-$prefix/lib}"
1547 libexecdir="${libexecdir:-$prefix/libexec}"
1548 includedir="${includedir:-$prefix/include}"
1549
1550 if test "$mingw32" = "yes" ; then
1551     mandir="$prefix"
1552     datadir="$prefix"
1553     docdir="$prefix"
1554     bindir="$prefix"
1555     sysconfdir="$prefix"
1556     local_statedir="$prefix"
1557 else
1558     mandir="${mandir:-$prefix/share/man}"
1559     datadir="${datadir:-$prefix/share}"
1560     docdir="${docdir:-$prefix/share/doc}"
1561     bindir="${bindir:-$prefix/bin}"
1562     sysconfdir="${sysconfdir:-$prefix/etc}"
1563     local_statedir="${local_statedir:-$prefix/var}"
1564 fi
1565 firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1566 localedir="${localedir:-$datadir/locale}"
1567
1568 case "$cpu" in
1569     ppc)
1570            CPU_CFLAGS="-m32"
1571            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1572            ;;
1573     ppc64)
1574            CPU_CFLAGS="-m64"
1575            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1576            ;;
1577     sparc)
1578            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1579            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1580            ;;
1581     sparc64)
1582            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1583            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1584            ;;
1585     s390)
1586            CPU_CFLAGS="-m31"
1587            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1588            ;;
1589     s390x)
1590            CPU_CFLAGS="-m64"
1591            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1592            ;;
1593     i386)
1594            CPU_CFLAGS="-m32"
1595            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1596            ;;
1597     x86_64)
1598            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1599            # If we truly care, we should simply detect this case at
1600            # runtime and generate the fallback to serial emulation.
1601            CPU_CFLAGS="-m64 -mcx16"
1602            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1603            ;;
1604     x32)
1605            CPU_CFLAGS="-mx32"
1606            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1607            ;;
1608     # No special flags required for other host CPUs
1609 esac
1610
1611 eval "cross_cc_${cpu}=\$host_cc"
1612 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1613 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1614
1615 # For user-mode emulation the host arch has to be one we explicitly
1616 # support, even if we're using TCI.
1617 if [ "$ARCH" = "unknown" ]; then
1618   bsd_user="no"
1619   linux_user="no"
1620 fi
1621
1622 default_target_list=""
1623 deprecated_targets_list=ppc64abi32-linux-user,tilegx-linux-user,lm32-softmmu,unicore32-softmmu
1624 deprecated_features=""
1625 mak_wilds=""
1626
1627 if [ "$softmmu" = "yes" ]; then
1628     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-softmmu.mak"
1629 fi
1630 if [ "$linux_user" = "yes" ]; then
1631     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-linux-user.mak"
1632 fi
1633 if [ "$bsd_user" = "yes" ]; then
1634     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-bsd-user.mak"
1635 fi
1636
1637 # If the user doesn't explicitly specify a deprecated target we will
1638 # skip it.
1639 if test -z "$target_list"; then
1640     if test -z "$target_list_exclude"; then
1641         target_list_exclude="$deprecated_targets_list"
1642     else
1643         target_list_exclude="$target_list_exclude,$deprecated_targets_list"
1644     fi
1645 fi
1646
1647 for config in $mak_wilds; do
1648     target="$(basename "$config" .mak)"
1649     if echo "$target_list_exclude" | grep -vq "$target"; then
1650         default_target_list="${default_target_list} $target"
1651     fi
1652 done
1653
1654 # Enumerate public trace backends for --help output
1655 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1656
1657 if test x"$show_help" = x"yes" ; then
1658 cat << EOF
1659
1660 Usage: configure [options]
1661 Options: [defaults in brackets after descriptions]
1662
1663 Standard options:
1664   --help                   print this message
1665   --prefix=PREFIX          install in PREFIX [$prefix]
1666   --interp-prefix=PREFIX   where to find shared libraries, etc.
1667                            use %M for cpu name [$interp_prefix]
1668   --target-list=LIST       set target list (default: build all non-deprecated)
1669 $(echo Available targets: $default_target_list | \
1670   fold -s -w 53 | sed -e 's/^/                           /')
1671 $(echo Deprecated targets: $deprecated_targets_list | \
1672   fold -s -w 53 | sed -e 's/^/                           /')
1673   --target-list-exclude=LIST exclude a set of targets from the default target-list
1674
1675 Advanced options (experts only):
1676   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
1677   --cc=CC                  use C compiler CC [$cc]
1678   --iasl=IASL              use ACPI compiler IASL [$iasl]
1679   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1680                            build time
1681   --cxx=CXX                use C++ compiler CXX [$cxx]
1682   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1683   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1684   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1685   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1686   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1687   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1688   --make=MAKE              use specified make [$make]
1689   --python=PYTHON          use specified python [$python]
1690   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1691   --meson=MESON            use specified meson [$meson]
1692   --ninja=NINJA            use specified ninja [$ninja]
1693   --smbd=SMBD              use specified smbd [$smbd]
1694   --with-git=GIT           use specified git [$git]
1695   --static                 enable static build [$static]
1696   --mandir=PATH            install man pages in PATH
1697   --datadir=PATH           install firmware in PATH/$qemu_suffix
1698   --localedir=PATH         install translation in PATH/$qemu_suffix
1699   --docdir=PATH            install documentation in PATH/$qemu_suffix
1700   --bindir=PATH            install binaries in PATH
1701   --libdir=PATH            install libraries in PATH
1702   --libexecdir=PATH        install helper binaries in PATH
1703   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1704   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1705   --firmwarepath=PATH      search PATH for firmware files
1706   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1707   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1708   --with-pkgversion=VERS   use specified string as sub-version of the package
1709   --enable-debug           enable common debug build options
1710   --enable-sanitizers      enable default sanitizers
1711   --enable-tsan            enable thread sanitizer
1712   --disable-strip          disable stripping binaries
1713   --disable-werror         disable compilation abort on warning
1714   --disable-stack-protector disable compiler-provided stack protection
1715   --audio-drv-list=LIST    set audio drivers list:
1716                            Available drivers: $audio_possible_drivers
1717   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1718   --block-drv-rw-whitelist=L
1719                            set block driver read-write whitelist
1720                            (affects only QEMU, not qemu-img)
1721   --block-drv-ro-whitelist=L
1722                            set block driver read-only whitelist
1723                            (affects only QEMU, not qemu-img)
1724   --enable-trace-backends=B Set trace backend
1725                            Available backends: $trace_backend_list
1726   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1727                            Default:trace-<pid>
1728   --disable-slirp          disable SLIRP userspace network connectivity
1729   --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)
1730   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1731   --oss-lib                path to OSS library
1732   --cpu=CPU                Build for host CPU [$cpu]
1733   --with-coroutine=BACKEND coroutine backend. Supported options:
1734                            ucontext, sigaltstack, windows
1735   --enable-gcov            enable test coverage analysis with gcov
1736   --disable-blobs          disable installing provided firmware blobs
1737   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1738   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1739   --tls-priority           default TLS protocol/cipher priority string
1740   --enable-gprof           QEMU profiling with gprof
1741   --enable-profiler        profiler support
1742   --enable-debug-stack-usage
1743                            track the maximum stack usage of stacks created by qemu_alloc_stack
1744   --enable-plugins
1745                            enable plugins via shared library loading
1746   --disable-containers     don't use containers for cross-building
1747   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1748
1749 Optional features, enabled with --enable-FEATURE and
1750 disabled with --disable-FEATURE, default is enabled if available:
1751
1752   system          all system emulation targets
1753   user            supported user emulation targets
1754   linux-user      all linux usermode emulation targets
1755   bsd-user        all BSD usermode emulation targets
1756   docs            build documentation
1757   guest-agent     build the QEMU Guest Agent
1758   guest-agent-msi build guest agent Windows MSI installation package
1759   pie             Position Independent Executables
1760   modules         modules support (non-Windows)
1761   module-upgrades try to load modules from alternate paths for upgrades
1762   debug-tcg       TCG debugging (default is disabled)
1763   debug-info      debugging information
1764   sparse          sparse checker
1765   safe-stack      SafeStack Stack Smash Protection. Depends on
1766                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1767
1768   gnutls          GNUTLS cryptography support
1769   nettle          nettle cryptography support
1770   gcrypt          libgcrypt cryptography support
1771   auth-pam        PAM access control
1772   sdl             SDL UI
1773   sdl-image       SDL Image support for icons
1774   gtk             gtk UI
1775   vte             vte support for the gtk UI
1776   curses          curses UI
1777   iconv           font glyph conversion support
1778   vnc             VNC UI support
1779   vnc-sasl        SASL encryption for VNC server
1780   vnc-jpeg        JPEG lossy compression for VNC server
1781   vnc-png         PNG compression for VNC server
1782   cocoa           Cocoa UI (Mac OS X only)
1783   virtfs          VirtFS
1784   virtiofsd       build virtiofs daemon (virtiofsd)
1785   libudev         Use libudev to enumerate host devices
1786   mpath           Multipath persistent reservation passthrough
1787   xen             xen backend driver support
1788   xen-pci-passthrough    PCI passthrough support for Xen
1789   brlapi          BrlAPI (Braile)
1790   curl            curl connectivity
1791   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1792   fdt             fdt device tree
1793   kvm             KVM acceleration support
1794   hax             HAX acceleration support
1795   hvf             Hypervisor.framework acceleration support
1796   whpx            Windows Hypervisor Platform acceleration support
1797   rdma            Enable RDMA-based migration
1798   pvrdma          Enable PVRDMA support
1799   vde             support for vde network
1800   netmap          support for netmap network
1801   linux-aio       Linux AIO support
1802   linux-io-uring  Linux io_uring support
1803   cap-ng          libcap-ng support
1804   attr            attr and xattr support
1805   vhost-net       vhost-net kernel acceleration support
1806   vhost-vsock     virtio sockets device support
1807   vhost-scsi      vhost-scsi kernel target support
1808   vhost-crypto    vhost-user-crypto backend support
1809   vhost-kernel    vhost kernel backend support
1810   vhost-user      vhost-user backend support
1811   vhost-user-blk-server    vhost-user-blk server support
1812   vhost-vdpa      vhost-vdpa kernel backend support
1813   spice           spice
1814   rbd             rados block device (rbd)
1815   libiscsi        iscsi support
1816   libnfs          nfs support
1817   smartcard       smartcard support (libcacard)
1818   u2f             U2F support (u2f-emu)
1819   libusb          libusb (for usb passthrough)
1820   live-block-migration   Block migration in the main migration stream
1821   usb-redir       usb network redirection support
1822   lzo             support of lzo compression library
1823   snappy          support of snappy compression library
1824   bzip2           support of bzip2 compression library
1825                   (for reading bzip2-compressed dmg images)
1826   lzfse           support of lzfse compression library
1827                   (for reading lzfse-compressed dmg images)
1828   zstd            support for zstd compression library
1829                   (for migration compression and qcow2 cluster compression)
1830   seccomp         seccomp support
1831   coroutine-pool  coroutine freelist (better performance)
1832   glusterfs       GlusterFS backend
1833   tpm             TPM support
1834   libssh          ssh block device support
1835   numa            libnuma support
1836   libxml2         for Parallels image format
1837   tcmalloc        tcmalloc support
1838   jemalloc        jemalloc support
1839   avx2            AVX2 optimization support
1840   avx512f         AVX512F optimization support
1841   replication     replication support
1842   opengl          opengl support
1843   virglrenderer   virgl rendering support
1844   xfsctl          xfsctl support
1845   qom-cast-debug  cast debugging support
1846   tools           build qemu-io, qemu-nbd and qemu-img tools
1847   bochs           bochs image format support
1848   cloop           cloop image format support
1849   dmg             dmg image format support
1850   qcow1           qcow v1 image format support
1851   vdi             vdi image format support
1852   vvfat           vvfat image format support
1853   qed             qed image format support
1854   parallels       parallels image format support
1855   sheepdog        sheepdog block driver support (deprecated)
1856   crypto-afalg    Linux AF_ALG crypto backend driver
1857   capstone        capstone disassembler support
1858   debug-mutex     mutex debugging support
1859   libpmem         libpmem support
1860   xkbcommon       xkbcommon support
1861   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1862   libdaxctl       libdaxctl support
1863   fuse            FUSE block device export
1864   fuse-lseek      SEEK_HOLE/SEEK_DATA support for FUSE exports
1865
1866 NOTE: The object files are built at the place where configure is launched
1867 EOF
1868 exit 0
1869 fi
1870
1871 # Remove old dependency files to make sure that they get properly regenerated
1872 rm -f */config-devices.mak.d
1873
1874 if test -z "$python"
1875 then
1876     error_exit "Python not found. Use --python=/path/to/python"
1877 fi
1878 if ! has "$make"
1879 then
1880     error_exit "GNU make ($make) not found"
1881 fi
1882
1883 # Note that if the Python conditional here evaluates True we will exit
1884 # with status 1 which is a shell 'false' value.
1885 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1886   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1887       "Use --python=/path/to/python to specify a supported Python."
1888 fi
1889
1890 # Preserve python version since some functionality is dependent on it
1891 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)
1892
1893 # Suppress writing compiled files
1894 python="$python -B"
1895
1896 if test -z "$meson"; then
1897     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.55.3; then
1898         meson=meson
1899     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
1900         meson=git
1901     elif test -e "${source_path}/meson/meson.py" ; then
1902         meson=internal
1903     else
1904         if test "$explicit_python" = yes; then
1905             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1906         else
1907             error_exit "Meson not found.  Use --meson=/path/to/meson"
1908         fi
1909     fi
1910 else
1911     # Meson uses its own Python interpreter to invoke other Python scripts,
1912     # but the user wants to use the one they specified with --python.
1913     #
1914     # We do not want to override the distro Python interpreter (and sometimes
1915     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1916     # just require --meson=git|internal together with --python.
1917     if test "$explicit_python" = yes; then
1918         case "$meson" in
1919             git | internal) ;;
1920             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1921         esac
1922     fi
1923 fi
1924
1925 if test "$meson" = git; then
1926     git_submodules="${git_submodules} meson"
1927 fi
1928
1929 case "$meson" in
1930     git | internal)
1931         meson="$python ${source_path}/meson/meson.py"
1932         ;;
1933     *) meson=$(command -v "$meson") ;;
1934 esac
1935
1936 # Probe for ninja
1937
1938 if test -z "$ninja"; then
1939     for c in ninja ninja-build samu; do
1940         if has $c; then
1941             ninja=$(command -v "$c")
1942             break
1943         fi
1944     done
1945     if test -z "$ninja"; then
1946       error_exit "Cannot find Ninja"
1947     fi
1948 fi
1949
1950 # Check that the C compiler works. Doing this here before testing
1951 # the host CPU ensures that we had a valid CC to autodetect the
1952 # $cpu var (and we should bail right here if that's not the case).
1953 # It also allows the help message to be printed without a CC.
1954 write_c_skeleton;
1955 if compile_object ; then
1956   : C compiler works ok
1957 else
1958     error_exit "\"$cc\" either does not exist or does not work"
1959 fi
1960 if ! compile_prog ; then
1961     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1962 fi
1963
1964 # Consult white-list to determine whether to enable werror
1965 # by default.  Only enable by default for git builds
1966 if test -z "$werror" ; then
1967     if test -e "$source_path/.git" && \
1968         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1969         werror="yes"
1970     else
1971         werror="no"
1972     fi
1973 fi
1974
1975 if test "$bogus_os" = "yes"; then
1976     # Now that we know that we're not printing the help and that
1977     # the compiler works (so the results of the check_defines we used
1978     # to identify the OS are reliable), if we didn't recognize the
1979     # host OS we should stop now.
1980     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1981 fi
1982
1983 # Check whether the compiler matches our minimum requirements:
1984 cat > $TMPC << EOF
1985 #if defined(__clang_major__) && defined(__clang_minor__)
1986 # ifdef __apple_build_version__
1987 #  if __clang_major__ < 5 || (__clang_major__ == 5 && __clang_minor__ < 1)
1988 #   error You need at least XCode Clang v5.1 to compile QEMU
1989 #  endif
1990 # else
1991 #  if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 4)
1992 #   error You need at least Clang v3.4 to compile QEMU
1993 #  endif
1994 # endif
1995 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1996 # if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
1997 #  error You need at least GCC v4.8 to compile QEMU
1998 # endif
1999 #else
2000 # error You either need GCC or Clang to compiler QEMU
2001 #endif
2002 int main (void) { return 0; }
2003 EOF
2004 if ! compile_prog "" "" ; then
2005     error_exit "You need at least GCC v4.8 or Clang v3.4 (or XCode Clang v5.1)"
2006 fi
2007
2008 # Accumulate -Wfoo and -Wno-bar separately.
2009 # We will list all of the enable flags first, and the disable flags second.
2010 # Note that we do not add -Werror, because that would enable it for all
2011 # configure tests. If a configure test failed due to -Werror this would
2012 # just silently disable some features, so it's too error prone.
2013
2014 warn_flags=
2015 add_to warn_flags -Wold-style-declaration
2016 add_to warn_flags -Wold-style-definition
2017 add_to warn_flags -Wtype-limits
2018 add_to warn_flags -Wformat-security
2019 add_to warn_flags -Wformat-y2k
2020 add_to warn_flags -Winit-self
2021 add_to warn_flags -Wignored-qualifiers
2022 add_to warn_flags -Wempty-body
2023 add_to warn_flags -Wnested-externs
2024 add_to warn_flags -Wendif-labels
2025 add_to warn_flags -Wexpansion-to-defined
2026 add_to warn_flags -Wimplicit-fallthrough=2
2027
2028 nowarn_flags=
2029 add_to nowarn_flags -Wno-initializer-overrides
2030 add_to nowarn_flags -Wno-missing-include-dirs
2031 add_to nowarn_flags -Wno-shift-negative-value
2032 add_to nowarn_flags -Wno-string-plus-int
2033 add_to nowarn_flags -Wno-typedef-redefinition
2034 add_to nowarn_flags -Wno-tautological-type-limit-compare
2035 add_to nowarn_flags -Wno-psabi
2036
2037 gcc_flags="$warn_flags $nowarn_flags"
2038
2039 cc_has_warning_flag() {
2040     write_c_skeleton;
2041
2042     # Use the positive sense of the flag when testing for -Wno-wombat
2043     # support (gcc will happily accept the -Wno- form of unknown
2044     # warning options).
2045     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2046     compile_prog "-Werror $optflag" ""
2047 }
2048
2049 for flag in $gcc_flags; do
2050     if cc_has_warning_flag $flag ; then
2051         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2052     fi
2053 done
2054
2055 if test "$stack_protector" != "no"; then
2056   cat > $TMPC << EOF
2057 int main(int argc, char *argv[])
2058 {
2059     char arr[64], *p = arr, *c = argv[0];
2060     while (*c) {
2061         *p++ = *c++;
2062     }
2063     return 0;
2064 }
2065 EOF
2066   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2067   sp_on=0
2068   for flag in $gcc_flags; do
2069     # We need to check both a compile and a link, since some compiler
2070     # setups fail only on a .c->.o compile and some only at link time
2071     if compile_object "-Werror $flag" &&
2072        compile_prog "-Werror $flag" ""; then
2073       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2074       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2075       sp_on=1
2076       break
2077     fi
2078   done
2079   if test "$stack_protector" = yes; then
2080     if test $sp_on = 0; then
2081       error_exit "Stack protector not supported"
2082     fi
2083   fi
2084 fi
2085
2086 # Disable -Wmissing-braces on older compilers that warn even for
2087 # the "universal" C zero initializer {0}.
2088 cat > $TMPC << EOF
2089 struct {
2090   int a[2];
2091 } x = {0};
2092 EOF
2093 if compile_object "-Werror" "" ; then
2094   :
2095 else
2096   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2097 fi
2098
2099 # Our module code doesn't support Windows
2100 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2101   error_exit "Modules are not available for Windows"
2102 fi
2103
2104 # module_upgrades is only reasonable if modules are enabled
2105 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2106   error_exit "Can't enable module-upgrades as Modules are not enabled"
2107 fi
2108
2109 # Static linking is not possible with modules or PIE
2110 if test "$static" = "yes" ; then
2111   if test "$modules" = "yes" ; then
2112     error_exit "static and modules are mutually incompatible"
2113   fi
2114 fi
2115
2116 # Unconditional check for compiler __thread support
2117   cat > $TMPC << EOF
2118 static __thread int tls_var;
2119 int main(void) { return tls_var; }
2120 EOF
2121
2122 if ! compile_prog "-Werror" "" ; then
2123     error_exit "Your compiler does not support the __thread specifier for " \
2124         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2125 fi
2126
2127 cat > $TMPC << EOF
2128
2129 #ifdef __linux__
2130 #  define THREAD __thread
2131 #else
2132 #  define THREAD
2133 #endif
2134 static THREAD int tls_var;
2135 int main(void) { return tls_var; }
2136 EOF
2137
2138 # Check we support --no-pie first; we will need this for building ROMs.
2139 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2140   CFLAGS_NOPIE="-fno-pie"
2141 fi
2142
2143 if test "$static" = "yes"; then
2144   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
2145     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2146     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
2147     pie="yes"
2148   elif test "$pie" = "yes"; then
2149     error_exit "-static-pie not available due to missing toolchain support"
2150   else
2151     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
2152     pie="no"
2153   fi
2154 elif test "$pie" = "no"; then
2155   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
2156 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2157   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2158   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
2159   pie="yes"
2160 elif test "$pie" = "yes"; then
2161   error_exit "PIE not available due to missing toolchain support"
2162 else
2163   echo "Disabling PIE due to missing toolchain support"
2164   pie="no"
2165 fi
2166
2167 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2168 # The combination is known as "full relro", because .got.plt is read-only too.
2169 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2170   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2171 fi
2172
2173 ##########################################
2174 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2175 # use i686 as default anyway, but for those that don't, an explicit
2176 # specification is necessary
2177
2178 if test "$cpu" = "i386"; then
2179   cat > $TMPC << EOF
2180 static int sfaa(int *ptr)
2181 {
2182   return __sync_fetch_and_and(ptr, 0);
2183 }
2184
2185 int main(void)
2186 {
2187   int val = 42;
2188   val = __sync_val_compare_and_swap(&val, 0, 1);
2189   sfaa(&val);
2190   return val;
2191 }
2192 EOF
2193   if ! compile_prog "" "" ; then
2194     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2195   fi
2196 fi
2197
2198 #########################################
2199 # Solaris specific configure tool chain decisions
2200
2201 if test "$solaris" = "yes" ; then
2202   if has ar; then
2203     :
2204   else
2205     if test -f /usr/ccs/bin/ar ; then
2206       error_exit "No path includes ar" \
2207           "Add /usr/ccs/bin to your path and rerun configure"
2208     fi
2209     error_exit "No path includes ar"
2210   fi
2211 fi
2212
2213 if test -z "${target_list+xxx}" ; then
2214     default_targets=yes
2215     for target in $default_target_list; do
2216         target_list="$target_list $target"
2217     done
2218     target_list="${target_list# }"
2219 else
2220     default_targets=no
2221     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2222     for target in $target_list; do
2223         # Check that we recognised the target name; this allows a more
2224         # friendly error message than if we let it fall through.
2225         case " $default_target_list " in
2226             *" $target "*)
2227                 ;;
2228             *)
2229                 error_exit "Unknown target name '$target'"
2230                 ;;
2231         esac
2232     done
2233 fi
2234
2235 for target in $target_list; do
2236     # if a deprecated target is enabled we note it here
2237     if echo "$deprecated_targets_list" | grep -q "$target"; then
2238         add_to deprecated_features $target
2239     fi
2240 done
2241
2242 # see if system emulation was really requested
2243 case " $target_list " in
2244   *"-softmmu "*) softmmu=yes
2245   ;;
2246   *) softmmu=no
2247   ;;
2248 esac
2249
2250 feature_not_found() {
2251   feature=$1
2252   remedy=$2
2253
2254   error_exit "User requested feature $feature" \
2255       "configure was not able to find it." \
2256       "$remedy"
2257 }
2258
2259 # ---
2260 # big/little endian test
2261 cat > $TMPC << EOF
2262 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2263 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2264 extern int foo(short *, short *);
2265 int main(int argc, char *argv[]) {
2266     return foo(big_endian, little_endian);
2267 }
2268 EOF
2269
2270 if compile_object ; then
2271     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2272         bigendian="yes"
2273     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2274         bigendian="no"
2275     else
2276         echo big/little test failed
2277     fi
2278 else
2279     echo big/little test failed
2280 fi
2281
2282 ##########################################
2283 # system tools
2284 if test -z "$want_tools"; then
2285     if test "$softmmu" = "no"; then
2286         want_tools=no
2287     else
2288         want_tools=yes
2289     fi
2290 fi
2291
2292 ##########################################
2293 # cocoa implies not SDL or GTK
2294 # (the cocoa UI code currently assumes it is always the active UI
2295 # and doesn't interact well with other UI frontend code)
2296 if test "$cocoa" = "enabled"; then
2297     if test "$sdl" = "enabled"; then
2298         error_exit "Cocoa and SDL UIs cannot both be enabled at once"
2299     fi
2300     if test "$gtk" = "yes"; then
2301         error_exit "Cocoa and GTK UIs cannot both be enabled at once"
2302     fi
2303     gtk=no
2304     sdl=disabled
2305 fi
2306
2307 # Some versions of Mac OS X incorrectly define SIZE_MAX
2308 cat > $TMPC << EOF
2309 #include <stdint.h>
2310 #include <stdio.h>
2311 int main(int argc, char *argv[]) {
2312     return printf("%zu", SIZE_MAX);
2313 }
2314 EOF
2315 have_broken_size_max=no
2316 if ! compile_object -Werror ; then
2317     have_broken_size_max=yes
2318 fi
2319
2320 ##########################################
2321 # L2TPV3 probe
2322
2323 cat > $TMPC <<EOF
2324 #include <sys/socket.h>
2325 #include <linux/ip.h>
2326 int main(void) { return sizeof(struct mmsghdr); }
2327 EOF
2328 if compile_prog "" "" ; then
2329   l2tpv3=yes
2330 else
2331   l2tpv3=no
2332 fi
2333
2334 cat > $TMPC <<EOF
2335 #include <sys/mman.h>
2336 int main(int argc, char *argv[]) {
2337     return mlockall(MCL_FUTURE);
2338 }
2339 EOF
2340 if compile_prog "" "" ; then
2341   have_mlockall=yes
2342 else
2343   have_mlockall=no
2344 fi
2345
2346 #########################################
2347 # vhost interdependencies and host support
2348
2349 # vhost backends
2350 if test "$vhost_user" = "yes" && test "$linux" != "yes"; then
2351   error_exit "vhost-user is only available on Linux"
2352 fi
2353 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2354 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2355   error_exit "vhost-vdpa is only available on Linux"
2356 fi
2357 test "$vhost_kernel" = "" && vhost_kernel=$linux
2358 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2359   error_exit "vhost-kernel is only available on Linux"
2360 fi
2361
2362 # vhost-kernel devices
2363 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2364 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2365   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2366 fi
2367 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2368 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2369   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2370 fi
2371
2372 # vhost-user backends
2373 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2374 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2375   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2376 fi
2377 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2378 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2379   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2380 fi
2381 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2382 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2383   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2384 fi
2385 #vhost-vdpa backends
2386 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2387 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2388   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2389 fi
2390
2391 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
2392 if test "$vhost_net" = ""; then
2393   test "$vhost_net_user" = "yes" && vhost_net=yes
2394   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
2395   test "$vhost_kernel" = "yes" && vhost_net=yes
2396 fi
2397
2398 ##########################################
2399 # pkg-config probe
2400
2401 if ! has "$pkg_config_exe"; then
2402   error_exit "pkg-config binary '$pkg_config_exe' not found"
2403 fi
2404
2405 ##########################################
2406 # NPTL probe
2407
2408 if test "$linux_user" = "yes"; then
2409   cat > $TMPC <<EOF
2410 #include <sched.h>
2411 #include <linux/futex.h>
2412 int main(void) {
2413 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2414 #error bork
2415 #endif
2416   return 0;
2417 }
2418 EOF
2419   if ! compile_object ; then
2420     feature_not_found "nptl" "Install glibc and linux kernel headers."
2421   fi
2422 fi
2423
2424 ##########################################
2425 # lzo check
2426
2427 if test "$lzo" != "no" ; then
2428     cat > $TMPC << EOF
2429 #include <lzo/lzo1x.h>
2430 int main(void) { lzo_version(); return 0; }
2431 EOF
2432     if compile_prog "" "-llzo2" ; then
2433         lzo_libs="-llzo2"
2434         lzo="yes"
2435     else
2436         if test "$lzo" = "yes"; then
2437             feature_not_found "liblzo2" "Install liblzo2 devel"
2438         fi
2439         lzo="no"
2440     fi
2441 fi
2442
2443 ##########################################
2444 # snappy check
2445
2446 if test "$snappy" != "no" ; then
2447     cat > $TMPC << EOF
2448 #include <snappy-c.h>
2449 int main(void) { snappy_max_compressed_length(4096); return 0; }
2450 EOF
2451     if compile_prog "" "-lsnappy" ; then
2452         snappy_libs='-lsnappy'
2453         snappy="yes"
2454     else
2455         if test "$snappy" = "yes"; then
2456             feature_not_found "libsnappy" "Install libsnappy devel"
2457         fi
2458         snappy="no"
2459     fi
2460 fi
2461
2462 ##########################################
2463 # bzip2 check
2464
2465 if test "$bzip2" != "no" ; then
2466     cat > $TMPC << EOF
2467 #include <bzlib.h>
2468 int main(void) { BZ2_bzlibVersion(); return 0; }
2469 EOF
2470     if compile_prog "" "-lbz2" ; then
2471         bzip2="yes"
2472     else
2473         if test "$bzip2" = "yes"; then
2474             feature_not_found "libbzip2" "Install libbzip2 devel"
2475         fi
2476         bzip2="no"
2477     fi
2478 fi
2479
2480 ##########################################
2481 # lzfse check
2482
2483 if test "$lzfse" != "no" ; then
2484     cat > $TMPC << EOF
2485 #include <lzfse.h>
2486 int main(void) { lzfse_decode_scratch_size(); return 0; }
2487 EOF
2488     if compile_prog "" "-llzfse" ; then
2489         lzfse="yes"
2490     else
2491         if test "$lzfse" = "yes"; then
2492             feature_not_found "lzfse" "Install lzfse devel"
2493         fi
2494         lzfse="no"
2495     fi
2496 fi
2497
2498 ##########################################
2499 # zstd check
2500
2501 if test "$zstd" != "no" ; then
2502     libzstd_minver="1.4.0"
2503     if $pkg_config --atleast-version=$libzstd_minver libzstd ; then
2504         zstd_cflags="$($pkg_config --cflags libzstd)"
2505         zstd_libs="$($pkg_config --libs libzstd)"
2506         zstd="yes"
2507     else
2508         if test "$zstd" = "yes" ; then
2509             feature_not_found "libzstd" "Install libzstd devel"
2510         fi
2511         zstd="no"
2512     fi
2513 fi
2514
2515 ##########################################
2516 # libseccomp check
2517
2518 if test "$seccomp" != "no" ; then
2519     libseccomp_minver="2.3.0"
2520     if $pkg_config --atleast-version=$libseccomp_minver libseccomp ; then
2521         seccomp_cflags="$($pkg_config --cflags libseccomp)"
2522         seccomp_libs="$($pkg_config --libs libseccomp)"
2523         seccomp="yes"
2524     else
2525         if test "$seccomp" = "yes" ; then
2526             feature_not_found "libseccomp" \
2527                  "Install libseccomp devel >= $libseccomp_minver"
2528         fi
2529         seccomp="no"
2530     fi
2531 fi
2532
2533 ##########################################
2534 # xen probe
2535
2536 if test "$xen" != "disabled" ; then
2537   # Check whether Xen library path is specified via --extra-ldflags to avoid
2538   # overriding this setting with pkg-config output. If not, try pkg-config
2539   # to obtain all needed flags.
2540
2541   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2542      $pkg_config --exists xencontrol ; then
2543     xen_ctrl_version="$(printf '%d%02d%02d' \
2544       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2545     xen=enabled
2546     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
2547     xen_pc="$xen_pc xenevtchn xendevicemodel"
2548     if $pkg_config --exists xentoolcore; then
2549       xen_pc="$xen_pc xentoolcore"
2550     fi
2551     xen_cflags="$($pkg_config --cflags $xen_pc)"
2552     xen_libs="$($pkg_config --libs $xen_pc)"
2553   else
2554
2555     xen_libs="-lxenstore -lxenctrl"
2556     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2557
2558     # First we test whether Xen headers and libraries are available.
2559     # If no, we are done and there is no Xen support.
2560     # If yes, more tests are run to detect the Xen version.
2561
2562     # Xen (any)
2563     cat > $TMPC <<EOF
2564 #include <xenctrl.h>
2565 int main(void) {
2566   return 0;
2567 }
2568 EOF
2569     if ! compile_prog "" "$xen_libs" ; then
2570       # Xen not found
2571       if test "$xen" = "enabled" ; then
2572         feature_not_found "xen" "Install xen devel"
2573       fi
2574       xen=disabled
2575
2576     # Xen unstable
2577     elif
2578         cat > $TMPC <<EOF &&
2579 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2580 #define __XEN_TOOLS__
2581 #include <xendevicemodel.h>
2582 #include <xenforeignmemory.h>
2583 int main(void) {
2584   xendevicemodel_handle *xd;
2585   xenforeignmemory_handle *xfmem;
2586
2587   xd = xendevicemodel_open(0, 0);
2588   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2589
2590   xfmem = xenforeignmemory_open(0, 0);
2591   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2592
2593   return 0;
2594 }
2595 EOF
2596         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2597       then
2598       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2599       xen_ctrl_version=41100
2600       xen=enabled
2601     elif
2602         cat > $TMPC <<EOF &&
2603 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2604 #include <xenforeignmemory.h>
2605 #include <xentoolcore.h>
2606 int main(void) {
2607   xenforeignmemory_handle *xfmem;
2608
2609   xfmem = xenforeignmemory_open(0, 0);
2610   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2611   xentoolcore_restrict_all(0);
2612
2613   return 0;
2614 }
2615 EOF
2616         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2617       then
2618       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2619       xen_ctrl_version=41000
2620       xen=enabled
2621     elif
2622         cat > $TMPC <<EOF &&
2623 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2624 #define __XEN_TOOLS__
2625 #include <xendevicemodel.h>
2626 int main(void) {
2627   xendevicemodel_handle *xd;
2628
2629   xd = xendevicemodel_open(0, 0);
2630   xendevicemodel_close(xd);
2631
2632   return 0;
2633 }
2634 EOF
2635         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2636       then
2637       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2638       xen_ctrl_version=40900
2639       xen=enabled
2640     elif
2641         cat > $TMPC <<EOF &&
2642 /*
2643  * If we have stable libs the we don't want the libxc compat
2644  * layers, regardless of what CFLAGS we may have been given.
2645  *
2646  * Also, check if xengnttab_grant_copy_segment_t is defined and
2647  * grant copy operation is implemented.
2648  */
2649 #undef XC_WANT_COMPAT_EVTCHN_API
2650 #undef XC_WANT_COMPAT_GNTTAB_API
2651 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2652 #include <xenctrl.h>
2653 #include <xenstore.h>
2654 #include <xenevtchn.h>
2655 #include <xengnttab.h>
2656 #include <xenforeignmemory.h>
2657 #include <stdint.h>
2658 #include <xen/hvm/hvm_info_table.h>
2659 #if !defined(HVM_MAX_VCPUS)
2660 # error HVM_MAX_VCPUS not defined
2661 #endif
2662 int main(void) {
2663   xc_interface *xc = NULL;
2664   xenforeignmemory_handle *xfmem;
2665   xenevtchn_handle *xe;
2666   xengnttab_handle *xg;
2667   xengnttab_grant_copy_segment_t* seg = NULL;
2668
2669   xs_daemon_open();
2670
2671   xc = xc_interface_open(0, 0, 0);
2672   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2673   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2674   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2675   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2676
2677   xfmem = xenforeignmemory_open(0, 0);
2678   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2679
2680   xe = xenevtchn_open(0, 0);
2681   xenevtchn_fd(xe);
2682
2683   xg = xengnttab_open(0, 0);
2684   xengnttab_grant_copy(xg, 0, seg);
2685
2686   return 0;
2687 }
2688 EOF
2689         compile_prog "" "$xen_libs $xen_stable_libs"
2690       then
2691       xen_ctrl_version=40800
2692       xen=enabled
2693     elif
2694         cat > $TMPC <<EOF &&
2695 /*
2696  * If we have stable libs the we don't want the libxc compat
2697  * layers, regardless of what CFLAGS we may have been given.
2698  */
2699 #undef XC_WANT_COMPAT_EVTCHN_API
2700 #undef XC_WANT_COMPAT_GNTTAB_API
2701 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2702 #include <xenctrl.h>
2703 #include <xenstore.h>
2704 #include <xenevtchn.h>
2705 #include <xengnttab.h>
2706 #include <xenforeignmemory.h>
2707 #include <stdint.h>
2708 #include <xen/hvm/hvm_info_table.h>
2709 #if !defined(HVM_MAX_VCPUS)
2710 # error HVM_MAX_VCPUS not defined
2711 #endif
2712 int main(void) {
2713   xc_interface *xc = NULL;
2714   xenforeignmemory_handle *xfmem;
2715   xenevtchn_handle *xe;
2716   xengnttab_handle *xg;
2717
2718   xs_daemon_open();
2719
2720   xc = xc_interface_open(0, 0, 0);
2721   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2722   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2723   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2724   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2725
2726   xfmem = xenforeignmemory_open(0, 0);
2727   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2728
2729   xe = xenevtchn_open(0, 0);
2730   xenevtchn_fd(xe);
2731
2732   xg = xengnttab_open(0, 0);
2733   xengnttab_map_grant_ref(xg, 0, 0, 0);
2734
2735   return 0;
2736 }
2737 EOF
2738         compile_prog "" "$xen_libs $xen_stable_libs"
2739       then
2740       xen_ctrl_version=40701
2741       xen=enabled
2742
2743     # Xen 4.6
2744     elif
2745         cat > $TMPC <<EOF &&
2746 #include <xenctrl.h>
2747 #include <xenstore.h>
2748 #include <stdint.h>
2749 #include <xen/hvm/hvm_info_table.h>
2750 #if !defined(HVM_MAX_VCPUS)
2751 # error HVM_MAX_VCPUS not defined
2752 #endif
2753 int main(void) {
2754   xc_interface *xc;
2755   xs_daemon_open();
2756   xc = xc_interface_open(0, 0, 0);
2757   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2758   xc_gnttab_open(NULL, 0);
2759   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2760   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2761   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2762   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2763   return 0;
2764 }
2765 EOF
2766         compile_prog "" "$xen_libs"
2767       then
2768       xen_ctrl_version=40600
2769       xen=enabled
2770
2771     # Xen 4.5
2772     elif
2773         cat > $TMPC <<EOF &&
2774 #include <xenctrl.h>
2775 #include <xenstore.h>
2776 #include <stdint.h>
2777 #include <xen/hvm/hvm_info_table.h>
2778 #if !defined(HVM_MAX_VCPUS)
2779 # error HVM_MAX_VCPUS not defined
2780 #endif
2781 int main(void) {
2782   xc_interface *xc;
2783   xs_daemon_open();
2784   xc = xc_interface_open(0, 0, 0);
2785   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2786   xc_gnttab_open(NULL, 0);
2787   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2788   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2789   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2790   return 0;
2791 }
2792 EOF
2793         compile_prog "" "$xen_libs"
2794       then
2795       xen_ctrl_version=40500
2796       xen=enabled
2797
2798     elif
2799         cat > $TMPC <<EOF &&
2800 #include <xenctrl.h>
2801 #include <xenstore.h>
2802 #include <stdint.h>
2803 #include <xen/hvm/hvm_info_table.h>
2804 #if !defined(HVM_MAX_VCPUS)
2805 # error HVM_MAX_VCPUS not defined
2806 #endif
2807 int main(void) {
2808   xc_interface *xc;
2809   xs_daemon_open();
2810   xc = xc_interface_open(0, 0, 0);
2811   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2812   xc_gnttab_open(NULL, 0);
2813   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2814   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2815   return 0;
2816 }
2817 EOF
2818         compile_prog "" "$xen_libs"
2819       then
2820       xen_ctrl_version=40200
2821       xen=enabled
2822
2823     else
2824       if test "$xen" = "enabled" ; then
2825         feature_not_found "xen (unsupported version)" \
2826                           "Install a supported xen (xen 4.2 or newer)"
2827       fi
2828       xen=disabled
2829     fi
2830
2831     if test "$xen" = enabled; then
2832       if test $xen_ctrl_version -ge 40701  ; then
2833         xen_libs="$xen_libs $xen_stable_libs "
2834       fi
2835     fi
2836   fi
2837 fi
2838
2839 if test "$xen_pci_passthrough" != "disabled"; then
2840   if test "$xen" = "enabled" && test "$linux" = "yes"; then
2841     xen_pci_passthrough=enabled
2842   else
2843     if test "$xen_pci_passthrough" = "enabled"; then
2844       error_exit "User requested feature Xen PCI Passthrough" \
2845           " but this feature requires /sys from Linux"
2846     fi
2847     xen_pci_passthrough=disabled
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 # VTE probe
3092
3093 if test "$vte" != "no"; then
3094     vteminversion="0.32.0"
3095     if $pkg_config --exists "vte-2.91"; then
3096       vtepackage="vte-2.91"
3097     else
3098       vtepackage="vte-2.90"
3099     fi
3100     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
3101         vte_cflags=$($pkg_config --cflags $vtepackage)
3102         vte_libs=$($pkg_config --libs $vtepackage)
3103         vteversion=$($pkg_config --modversion $vtepackage)
3104         vte="yes"
3105     elif test "$vte" = "yes"; then
3106         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
3107     else
3108         vte="no"
3109     fi
3110 fi
3111
3112 ##########################################
3113 # RDMA needs OpenFabrics libraries
3114 if test "$rdma" != "no" ; then
3115   cat > $TMPC <<EOF
3116 #include <rdma/rdma_cma.h>
3117 int main(void) { return 0; }
3118 EOF
3119   rdma_libs="-lrdmacm -libverbs -libumad"
3120   if compile_prog "" "$rdma_libs" ; then
3121     rdma="yes"
3122   else
3123     if test "$rdma" = "yes" ; then
3124         error_exit \
3125             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
3126             " Your options:" \
3127             "  (1) Fast: Install infiniband packages (devel) from your distro." \
3128             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
3129             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
3130     fi
3131     rdma="no"
3132   fi
3133 fi
3134
3135 ##########################################
3136 # PVRDMA detection
3137
3138 cat > $TMPC <<EOF &&
3139 #include <sys/mman.h>
3140
3141 int
3142 main(void)
3143 {
3144     char buf = 0;
3145     void *addr = &buf;
3146     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3147
3148     return 0;
3149 }
3150 EOF
3151
3152 if test "$rdma" = "yes" ; then
3153     case "$pvrdma" in
3154     "")
3155         if compile_prog "" ""; then
3156             pvrdma="yes"
3157         else
3158             pvrdma="no"
3159         fi
3160         ;;
3161     "yes")
3162         if ! compile_prog "" ""; then
3163             error_exit "PVRDMA is not supported since mremap is not implemented"
3164         fi
3165         pvrdma="yes"
3166         ;;
3167     "no")
3168         pvrdma="no"
3169         ;;
3170     esac
3171 else
3172     if test "$pvrdma" = "yes" ; then
3173         error_exit "PVRDMA requires rdma suppport"
3174     fi
3175     pvrdma="no"
3176 fi
3177
3178 # Let's see if enhanced reg_mr is supported
3179 if test "$pvrdma" = "yes" ; then
3180
3181 cat > $TMPC <<EOF &&
3182 #include <infiniband/verbs.h>
3183
3184 int
3185 main(void)
3186 {
3187     struct ibv_mr *mr;
3188     struct ibv_pd *pd = NULL;
3189     size_t length = 10;
3190     uint64_t iova = 0;
3191     int access = 0;
3192     void *addr = NULL;
3193
3194     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
3195
3196     ibv_dereg_mr(mr);
3197
3198     return 0;
3199 }
3200 EOF
3201     if ! compile_prog "" "-libverbs"; then
3202         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
3203     fi
3204 fi
3205
3206 ##########################################
3207 # xfsctl() probe, used for file-posix.c
3208 if test "$xfs" != "no" ; then
3209   cat > $TMPC << EOF
3210 #include <stddef.h>  /* NULL */
3211 #include <xfs/xfs.h>
3212 int main(void)
3213 {
3214     xfsctl(NULL, 0, 0, NULL);
3215     return 0;
3216 }
3217 EOF
3218   if compile_prog "" "" ; then
3219     xfs="yes"
3220   else
3221     if test "$xfs" = "yes" ; then
3222       feature_not_found "xfs" "Install xfsprogs/xfslibs devel"
3223     fi
3224     xfs=no
3225   fi
3226 fi
3227
3228 ##########################################
3229 # vde libraries probe
3230 if test "$vde" != "no" ; then
3231   vde_libs="-lvdeplug"
3232   cat > $TMPC << EOF
3233 #include <libvdeplug.h>
3234 int main(void)
3235 {
3236     struct vde_open_args a = {0, 0, 0};
3237     char s[] = "";
3238     vde_open(s, s, &a);
3239     return 0;
3240 }
3241 EOF
3242   if compile_prog "" "$vde_libs" ; then
3243     vde=yes
3244   else
3245     if test "$vde" = "yes" ; then
3246       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3247     fi
3248     vde=no
3249   fi
3250 fi
3251
3252 ##########################################
3253 # netmap support probe
3254 # Apart from looking for netmap headers, we make sure that the host API version
3255 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3256 # a minor/major version number. Minor new features will be marked with values up
3257 # to 15, and if something happens that requires a change to the backend we will
3258 # move above 15, submit the backend fixes and modify this two bounds.
3259 if test "$netmap" != "no" ; then
3260   cat > $TMPC << EOF
3261 #include <inttypes.h>
3262 #include <net/if.h>
3263 #include <net/netmap.h>
3264 #include <net/netmap_user.h>
3265 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3266 #error
3267 #endif
3268 int main(void) { return 0; }
3269 EOF
3270   if compile_prog "" "" ; then
3271     netmap=yes
3272   else
3273     if test "$netmap" = "yes" ; then
3274       feature_not_found "netmap"
3275     fi
3276     netmap=no
3277   fi
3278 fi
3279
3280 ##########################################
3281 # libcap-ng library probe
3282 if test "$cap_ng" != "no" ; then
3283   cap_libs="-lcap-ng"
3284   cat > $TMPC << EOF
3285 #include <cap-ng.h>
3286 int main(void)
3287 {
3288     capng_capability_to_name(CAPNG_EFFECTIVE);
3289     return 0;
3290 }
3291 EOF
3292   if compile_prog "" "$cap_libs" ; then
3293     cap_ng=yes
3294   else
3295     if test "$cap_ng" = "yes" ; then
3296       feature_not_found "cap_ng" "Install libcap-ng devel"
3297     fi
3298     cap_ng=no
3299   fi
3300 fi
3301
3302 ##########################################
3303 # Sound support libraries probe
3304
3305 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3306 for drv in $audio_drv_list; do
3307     case $drv in
3308     alsa | try-alsa)
3309     if $pkg_config alsa --exists; then
3310         alsa_libs=$($pkg_config alsa --libs)
3311         alsa_cflags=$($pkg_config alsa --cflags)
3312         alsa=yes
3313         if test "$drv" = "try-alsa"; then
3314             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3315         fi
3316     else
3317         if test "$drv" = "try-alsa"; then
3318             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3319         else
3320             error_exit "$drv check failed" \
3321                 "Make sure to have the $drv libs and headers installed."
3322         fi
3323     fi
3324     ;;
3325
3326     pa | try-pa)
3327     if $pkg_config libpulse --exists; then
3328         libpulse=yes
3329         pulse_libs=$($pkg_config libpulse --libs)
3330         pulse_cflags=$($pkg_config libpulse --cflags)
3331         if test "$drv" = "try-pa"; then
3332             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3333         fi
3334     else
3335         if test "$drv" = "try-pa"; then
3336             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3337         else
3338             error_exit "$drv check failed" \
3339                 "Make sure to have the $drv libs and headers installed."
3340         fi
3341     fi
3342     ;;
3343
3344     sdl)
3345     if test "$sdl" = "no"; then
3346         error_exit "sdl not found or disabled, can not use sdl audio driver"
3347     fi
3348     ;;
3349
3350     try-sdl)
3351     if test "$sdl" = "no"; then
3352         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3353     else
3354         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3355     fi
3356     ;;
3357
3358     coreaudio)
3359       coreaudio_libs="-framework CoreAudio"
3360     ;;
3361
3362     dsound)
3363       dsound_libs="-lole32 -ldxguid"
3364       audio_win_int="yes"
3365     ;;
3366
3367     oss)
3368       oss_libs="$oss_lib"
3369     ;;
3370
3371     jack | try-jack)
3372     if $pkg_config jack --exists; then
3373         libjack=yes
3374         jack_libs=$($pkg_config jack --libs)
3375         if test "$drv" = "try-jack"; then
3376             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3377         fi
3378     else
3379         if test "$drv" = "try-jack"; then
3380             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3381         else
3382             error_exit "$drv check failed" \
3383                 "Make sure to have the $drv libs and headers installed."
3384         fi
3385     fi
3386     ;;
3387
3388     *)
3389     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3390         error_exit "Unknown driver '$drv' selected" \
3391             "Possible drivers are: $audio_possible_drivers"
3392     }
3393     ;;
3394     esac
3395 done
3396
3397 ##########################################
3398 # BrlAPI probe
3399
3400 if test "$brlapi" != "no" ; then
3401   brlapi_libs="-lbrlapi"
3402   cat > $TMPC << EOF
3403 #include <brlapi.h>
3404 #include <stddef.h>
3405 int main( void ) { return brlapi__openConnection (NULL, NULL, NULL); }
3406 EOF
3407   if compile_prog "" "$brlapi_libs" ; then
3408     brlapi=yes
3409   else
3410     if test "$brlapi" = "yes" ; then
3411       feature_not_found "brlapi" "Install brlapi devel"
3412     fi
3413     brlapi=no
3414   fi
3415 fi
3416
3417 ##########################################
3418 # curl probe
3419 if test "$curl" != "no" ; then
3420   if $pkg_config libcurl --exists; then
3421     curlconfig="$pkg_config libcurl"
3422   else
3423     curlconfig=curl-config
3424   fi
3425   cat > $TMPC << EOF
3426 #include <curl/curl.h>
3427 int main(void) { curl_easy_init(); curl_multi_setopt(0, 0, 0); return 0; }
3428 EOF
3429   curl_cflags=$($curlconfig --cflags 2>/dev/null)
3430   curl_libs=$($curlconfig --libs 2>/dev/null)
3431   if compile_prog "$curl_cflags" "$curl_libs" ; then
3432     curl=yes
3433   else
3434     if test "$curl" = "yes" ; then
3435       feature_not_found "curl" "Install libcurl devel"
3436     fi
3437     curl=no
3438   fi
3439 fi # test "$curl"
3440
3441 ##########################################
3442 # glib support probe
3443
3444 glib_req_ver=2.48
3445 glib_modules=gthread-2.0
3446 if test "$modules" = yes; then
3447     glib_modules="$glib_modules gmodule-export-2.0"
3448 fi
3449 if test "$plugins" = yes; then
3450     glib_modules="$glib_modules gmodule-2.0"
3451 fi
3452
3453 for i in $glib_modules; do
3454     if $pkg_config --atleast-version=$glib_req_ver $i; then
3455         glib_cflags=$($pkg_config --cflags $i)
3456         glib_libs=$($pkg_config --libs $i)
3457     else
3458         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3459     fi
3460 done
3461
3462 # This workaround is required due to a bug in pkg-config file for glib as it
3463 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3464
3465 if test "$static" = yes && test "$mingw32" = yes; then
3466     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
3467 fi
3468
3469 if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3470     gio_cflags=$($pkg_config --cflags gio-2.0)
3471     gio_libs=$($pkg_config --libs gio-2.0)
3472     gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3473     if [ ! -x "$gdbus_codegen" ]; then
3474         gdbus_codegen=
3475     fi
3476     # Check that the libraries actually work -- Ubuntu 18.04 ships
3477     # with pkg-config --static --libs data for gio-2.0 that is missing
3478     # -lblkid and will give a link error.
3479     cat > $TMPC <<EOF
3480 #include <gio/gio.h>
3481 int main(void)
3482 {
3483     g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
3484     return 0;
3485 }
3486 EOF
3487     if compile_prog "$gio_cflags" "$gio_libs" ; then
3488         gio=yes
3489     else
3490         gio=no
3491     fi
3492 else
3493     gio=no
3494 fi
3495
3496 if $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3497     gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3498     gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3499 fi
3500
3501 # Sanity check that the current size_t matches the
3502 # size that glib thinks it should be. This catches
3503 # problems on multi-arch where people try to build
3504 # 32-bit QEMU while pointing at 64-bit glib headers
3505 cat > $TMPC <<EOF
3506 #include <glib.h>
3507 #include <unistd.h>
3508
3509 #define QEMU_BUILD_BUG_ON(x) \
3510   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3511
3512 int main(void) {
3513    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3514    return 0;
3515 }
3516 EOF
3517
3518 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
3519     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3520                "You probably need to set PKG_CONFIG_LIBDIR"\
3521                "to point to the right pkg-config files for your"\
3522                "build target"
3523 fi
3524
3525 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3526 cat > $TMPC << EOF
3527 #include <glib.h>
3528 int main(void) { return 0; }
3529 EOF
3530 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3531     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3532         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3533         CONFIGURE_CFLAGS="-Wno-unknown-attributes $CONFIGURE_CFLAGS"
3534     fi
3535 fi
3536
3537 # Silence clang warnings triggered by glib < 2.57.2
3538 cat > $TMPC << EOF
3539 #include <glib.h>
3540 typedef struct Foo {
3541     int i;
3542 } Foo;
3543 static void foo_free(Foo *f)
3544 {
3545     g_free(f);
3546 }
3547 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3548 int main(void) { return 0; }
3549 EOF
3550 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3551     if cc_has_warning_flag "-Wno-unused-function"; then
3552         glib_cflags="$glib_cflags -Wno-unused-function"
3553         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
3554     fi
3555 fi
3556
3557 ##########################################
3558 # SHA command probe for modules
3559 if test "$modules" = yes; then
3560     shacmd_probe="sha1sum sha1 shasum"
3561     for c in $shacmd_probe; do
3562         if has $c; then
3563             shacmd="$c"
3564             break
3565         fi
3566     done
3567     if test "$shacmd" = ""; then
3568         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3569     fi
3570 fi
3571
3572 ##########################################
3573 # pthread probe
3574 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3575
3576 pthread=no
3577 cat > $TMPC << EOF
3578 #include <pthread.h>
3579 static void *f(void *p) { return NULL; }
3580 int main(void) {
3581   pthread_t thread;
3582   pthread_create(&thread, 0, f, 0);
3583   return 0;
3584 }
3585 EOF
3586 if compile_prog "" "" ; then
3587   pthread=yes
3588 else
3589   for pthread_lib in $PTHREADLIBS_LIST; do
3590     if compile_prog "" "$pthread_lib" ; then
3591       pthread=yes
3592       found=no
3593       for lib_entry in $LIBS; do
3594         if test "$lib_entry" = "$pthread_lib"; then
3595           found=yes
3596           break
3597         fi
3598       done
3599       if test "$found" = "no"; then
3600         LIBS="$pthread_lib $LIBS"
3601       fi
3602       break
3603     fi
3604   done
3605 fi
3606
3607 if test "$mingw32" != yes && test "$pthread" = no; then
3608   error_exit "pthread check failed" \
3609       "Make sure to have the pthread libs and headers installed."
3610 fi
3611
3612 # check for pthread_setname_np with thread id
3613 pthread_setname_np_w_tid=no
3614 cat > $TMPC << EOF
3615 #include <pthread.h>
3616
3617 static void *f(void *p) { return NULL; }
3618 int main(void)
3619 {
3620     pthread_t thread;
3621     pthread_create(&thread, 0, f, 0);
3622     pthread_setname_np(thread, "QEMU");
3623     return 0;
3624 }
3625 EOF
3626 if compile_prog "" "$pthread_lib" ; then
3627   pthread_setname_np_w_tid=yes
3628 fi
3629
3630 # check for pthread_setname_np without thread id
3631 pthread_setname_np_wo_tid=no
3632 cat > $TMPC << EOF
3633 #include <pthread.h>
3634
3635 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
3636 int main(void)
3637 {
3638     pthread_t thread;
3639     pthread_create(&thread, 0, f, 0);
3640     return 0;
3641 }
3642 EOF
3643 if compile_prog "" "$pthread_lib" ; then
3644   pthread_setname_np_wo_tid=yes
3645 fi
3646
3647 ##########################################
3648 # rbd probe
3649 if test "$rbd" != "no" ; then
3650   cat > $TMPC <<EOF
3651 #include <stdio.h>
3652 #include <rbd/librbd.h>
3653 int main(void) {
3654     rados_t cluster;
3655     rados_create(&cluster, NULL);
3656     return 0;
3657 }
3658 EOF
3659   rbd_libs="-lrbd -lrados"
3660   if compile_prog "" "$rbd_libs" ; then
3661     rbd=yes
3662   else
3663     if test "$rbd" = "yes" ; then
3664       feature_not_found "rados block device" "Install librbd/ceph devel"
3665     fi
3666     rbd=no
3667   fi
3668 fi
3669
3670 ##########################################
3671 # libssh probe
3672 if test "$libssh" != "no" ; then
3673   if $pkg_config --exists libssh; then
3674     libssh_cflags=$($pkg_config libssh --cflags)
3675     libssh_libs=$($pkg_config libssh --libs)
3676     libssh=yes
3677   else
3678     if test "$libssh" = "yes" ; then
3679       error_exit "libssh required for --enable-libssh"
3680     fi
3681     libssh=no
3682   fi
3683 fi
3684
3685 ##########################################
3686 # Check for libssh 0.8
3687 # This is done like this instead of using the LIBSSH_VERSION_* and
3688 # SSH_VERSION_* macros because some distributions in the past shipped
3689 # snapshots of the future 0.8 from Git, and those snapshots did not
3690 # have updated version numbers (still referring to 0.7.0).
3691
3692 if test "$libssh" = "yes"; then
3693   cat > $TMPC <<EOF
3694 #include <libssh/libssh.h>
3695 int main(void) { return ssh_get_server_publickey(NULL, NULL); }
3696 EOF
3697   if compile_prog "$libssh_cflags" "$libssh_libs"; then
3698     libssh_cflags="-DHAVE_LIBSSH_0_8 $libssh_cflags"
3699   fi
3700 fi
3701
3702 ##########################################
3703 # linux-aio probe
3704
3705 if test "$linux_aio" != "no" ; then
3706   cat > $TMPC <<EOF
3707 #include <libaio.h>
3708 #include <sys/eventfd.h>
3709 #include <stddef.h>
3710 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
3711 EOF
3712   if compile_prog "" "-laio" ; then
3713     linux_aio=yes
3714   else
3715     if test "$linux_aio" = "yes" ; then
3716       feature_not_found "linux AIO" "Install libaio devel"
3717     fi
3718     linux_aio=no
3719   fi
3720 fi
3721 ##########################################
3722 # linux-io-uring probe
3723
3724 if test "$linux_io_uring" != "no" ; then
3725   if $pkg_config liburing; then
3726     linux_io_uring_cflags=$($pkg_config --cflags liburing)
3727     linux_io_uring_libs=$($pkg_config --libs liburing)
3728     linux_io_uring=yes
3729   else
3730     if test "$linux_io_uring" = "yes" ; then
3731       feature_not_found "linux io_uring" "Install liburing devel"
3732     fi
3733     linux_io_uring=no
3734   fi
3735 fi
3736
3737 ##########################################
3738 # TPM emulation is only on POSIX
3739
3740 if test "$tpm" = ""; then
3741   if test "$mingw32" = "yes"; then
3742     tpm=no
3743   else
3744     tpm=yes
3745   fi
3746 elif test "$tpm" = "yes"; then
3747   if test "$mingw32" = "yes" ; then
3748     error_exit "TPM emulation only available on POSIX systems"
3749   fi
3750 fi
3751
3752 ##########################################
3753 # attr probe
3754
3755 libattr_libs=
3756 if test "$attr" != "no" ; then
3757   cat > $TMPC <<EOF
3758 #include <stdio.h>
3759 #include <sys/types.h>
3760 #ifdef CONFIG_LIBATTR
3761 #include <attr/xattr.h>
3762 #else
3763 #include <sys/xattr.h>
3764 #endif
3765 int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }
3766 EOF
3767   if compile_prog "" "" ; then
3768     attr=yes
3769   # Older distros have <attr/xattr.h>, and need -lattr:
3770   elif compile_prog "-DCONFIG_LIBATTR" "-lattr" ; then
3771     attr=yes
3772     libattr_libs="-lattr"
3773     libattr=yes
3774   else
3775     if test "$attr" = "yes" ; then
3776       feature_not_found "ATTR" "Install libc6 or libattr devel"
3777     fi
3778     attr=no
3779   fi
3780 fi
3781
3782 ##########################################
3783 # iovec probe
3784 cat > $TMPC <<EOF
3785 #include <sys/types.h>
3786 #include <sys/uio.h>
3787 #include <unistd.h>
3788 int main(void) { return sizeof(struct iovec); }
3789 EOF
3790 iovec=no
3791 if compile_prog "" "" ; then
3792   iovec=yes
3793 fi
3794
3795 ##########################################
3796 # preadv probe
3797 cat > $TMPC <<EOF
3798 #include <sys/types.h>
3799 #include <sys/uio.h>
3800 #include <unistd.h>
3801 int main(void) { return preadv(0, 0, 0, 0); }
3802 EOF
3803 preadv=no
3804 if compile_prog "" "" ; then
3805   preadv=yes
3806 fi
3807
3808 ##########################################
3809 # fdt probe
3810
3811 case "$fdt" in
3812   auto | enabled | internal)
3813     # Simpler to always update submodule, even if not needed.
3814     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
3815       git_submodules="${git_submodules} dtc"
3816     fi
3817     ;;
3818 esac
3819
3820 ##########################################
3821 # opengl probe (for sdl2, gtk, milkymist-tmu2)
3822
3823 gbm="no"
3824 if $pkg_config gbm; then
3825     gbm_cflags="$($pkg_config --cflags gbm)"
3826     gbm_libs="$($pkg_config --libs gbm)"
3827     gbm="yes"
3828 fi
3829
3830 if test "$opengl" != "no" ; then
3831   opengl_pkgs="epoxy gbm"
3832   if $pkg_config $opengl_pkgs; then
3833     opengl_cflags="$($pkg_config --cflags $opengl_pkgs)"
3834     opengl_libs="$($pkg_config --libs $opengl_pkgs)"
3835     opengl=yes
3836     if test "$gtk" = "yes" && $pkg_config --exists "$gtkpackage >= 3.16"; then
3837         gtk_gl="yes"
3838     fi
3839   else
3840     if test "$opengl" = "yes" ; then
3841       feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
3842     fi
3843     opengl_cflags=""
3844     opengl_libs=""
3845     opengl=no
3846   fi
3847 fi
3848
3849 if test "$opengl" = "yes"; then
3850   cat > $TMPC << EOF
3851 #include <epoxy/egl.h>
3852 #ifndef EGL_MESA_image_dma_buf_export
3853 # error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
3854 #endif
3855 int main(void) { return 0; }
3856 EOF
3857   if compile_prog "" "" ; then
3858     opengl_dmabuf=yes
3859   fi
3860 fi
3861
3862 if test "$opengl" = "yes" && test "$have_x11" = "yes"; then
3863   for target in $target_list; do
3864     case $target in
3865       lm32-softmmu) # milkymist-tmu2 requires X11 and OpenGL
3866         need_x11=yes
3867       ;;
3868     esac
3869   done
3870 fi
3871
3872 ##########################################
3873 # libxml2 probe
3874 if test "$libxml2" != "no" ; then
3875     if $pkg_config --exists libxml-2.0; then
3876         libxml2="yes"
3877         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
3878         libxml2_libs=$($pkg_config --libs libxml-2.0)
3879     else
3880         if test "$libxml2" = "yes"; then
3881             feature_not_found "libxml2" "Install libxml2 devel"
3882         fi
3883         libxml2="no"
3884     fi
3885 fi
3886
3887 ##########################################
3888 # glusterfs probe
3889 if test "$glusterfs" != "no" ; then
3890   if $pkg_config --atleast-version=3 glusterfs-api; then
3891     glusterfs="yes"
3892     glusterfs_cflags=$($pkg_config --cflags glusterfs-api)
3893     glusterfs_libs=$($pkg_config --libs glusterfs-api)
3894     if $pkg_config --atleast-version=4 glusterfs-api; then
3895       glusterfs_xlator_opt="yes"
3896     fi
3897     if $pkg_config --atleast-version=5 glusterfs-api; then
3898       glusterfs_discard="yes"
3899     fi
3900     if $pkg_config --atleast-version=6 glusterfs-api; then
3901       glusterfs_fallocate="yes"
3902       glusterfs_zerofill="yes"
3903     fi
3904     cat > $TMPC << EOF
3905 #include <glusterfs/api/glfs.h>
3906
3907 int
3908 main(void)
3909 {
3910         /* new glfs_ftruncate() passes two additional args */
3911         return glfs_ftruncate(NULL, 0, NULL, NULL);
3912 }
3913 EOF
3914     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
3915       glusterfs_ftruncate_has_stat="yes"
3916     fi
3917     cat > $TMPC << EOF
3918 #include <glusterfs/api/glfs.h>
3919
3920 /* new glfs_io_cbk() passes two additional glfs_stat structs */
3921 static void
3922 glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
3923 {}
3924
3925 int
3926 main(void)
3927 {
3928         glfs_io_cbk iocb = &glusterfs_iocb;
3929         iocb(NULL, 0 , NULL, NULL, NULL);
3930         return 0;
3931 }
3932 EOF
3933     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
3934       glusterfs_iocb_has_stat="yes"
3935     fi
3936   else
3937     if test "$glusterfs" = "yes" ; then
3938       feature_not_found "GlusterFS backend support" \
3939           "Install glusterfs-api devel >= 3"
3940     fi
3941     glusterfs="no"
3942   fi
3943 fi
3944
3945 # Check for inotify functions when we are building linux-user
3946 # emulator.  This is done because older glibc versions don't
3947 # have syscall stubs for these implemented.  In that case we
3948 # don't provide them even if kernel supports them.
3949 #
3950 inotify=no
3951 cat > $TMPC << EOF
3952 #include <sys/inotify.h>
3953
3954 int
3955 main(void)
3956 {
3957         /* try to start inotify */
3958         return inotify_init();
3959 }
3960 EOF
3961 if compile_prog "" "" ; then
3962   inotify=yes
3963 fi
3964
3965 inotify1=no
3966 cat > $TMPC << EOF
3967 #include <sys/inotify.h>
3968
3969 int
3970 main(void)
3971 {
3972     /* try to start inotify */
3973     return inotify_init1(0);
3974 }
3975 EOF
3976 if compile_prog "" "" ; then
3977   inotify1=yes
3978 fi
3979
3980 # check if pipe2 is there
3981 pipe2=no
3982 cat > $TMPC << EOF
3983 #include <unistd.h>
3984 #include <fcntl.h>
3985
3986 int main(void)
3987 {
3988     int pipefd[2];
3989     return pipe2(pipefd, O_CLOEXEC);
3990 }
3991 EOF
3992 if compile_prog "" "" ; then
3993   pipe2=yes
3994 fi
3995
3996 # check if accept4 is there
3997 accept4=no
3998 cat > $TMPC << EOF
3999 #include <sys/socket.h>
4000 #include <stddef.h>
4001
4002 int main(void)
4003 {
4004     accept4(0, NULL, NULL, SOCK_CLOEXEC);
4005     return 0;
4006 }
4007 EOF
4008 if compile_prog "" "" ; then
4009   accept4=yes
4010 fi
4011
4012 # check if tee/splice is there. vmsplice was added same time.
4013 splice=no
4014 cat > $TMPC << EOF
4015 #include <unistd.h>
4016 #include <fcntl.h>
4017 #include <limits.h>
4018
4019 int main(void)
4020 {
4021     int len, fd = 0;
4022     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
4023     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
4024     return 0;
4025 }
4026 EOF
4027 if compile_prog "" "" ; then
4028   splice=yes
4029 fi
4030
4031 ##########################################
4032 # libnuma probe
4033
4034 if test "$numa" != "no" ; then
4035   cat > $TMPC << EOF
4036 #include <numa.h>
4037 int main(void) { return numa_available(); }
4038 EOF
4039
4040   if compile_prog "" "-lnuma" ; then
4041     numa=yes
4042     numa_libs="-lnuma"
4043   else
4044     if test "$numa" = "yes" ; then
4045       feature_not_found "numa" "install numactl devel"
4046     fi
4047     numa=no
4048   fi
4049 fi
4050
4051 malloc=system
4052 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
4053     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
4054     exit 1
4055 elif test "$tcmalloc" = "yes" ; then
4056     malloc=tcmalloc
4057 elif test "$jemalloc" = "yes" ; then
4058     malloc=jemalloc
4059 fi
4060
4061 ##########################################
4062 # signalfd probe
4063 signalfd="no"
4064 cat > $TMPC << EOF
4065 #include <unistd.h>
4066 #include <sys/syscall.h>
4067 #include <signal.h>
4068 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
4069 EOF
4070
4071 if compile_prog "" "" ; then
4072   signalfd=yes
4073 fi
4074
4075 # check if optreset global is declared by <getopt.h>
4076 optreset="no"
4077 cat > $TMPC << EOF
4078 #include <getopt.h>
4079 int main(void) { return optreset; }
4080 EOF
4081
4082 if compile_prog "" "" ; then
4083   optreset=yes
4084 fi
4085
4086 # check if eventfd is supported
4087 eventfd=no
4088 cat > $TMPC << EOF
4089 #include <sys/eventfd.h>
4090
4091 int main(void)
4092 {
4093     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
4094 }
4095 EOF
4096 if compile_prog "" "" ; then
4097   eventfd=yes
4098 fi
4099
4100 # check if memfd is supported
4101 memfd=no
4102 cat > $TMPC << EOF
4103 #include <sys/mman.h>
4104
4105 int main(void)
4106 {
4107     return memfd_create("foo", MFD_ALLOW_SEALING);
4108 }
4109 EOF
4110 if compile_prog "" "" ; then
4111   memfd=yes
4112 fi
4113
4114 # check for usbfs
4115 have_usbfs=no
4116 if test "$linux_user" = "yes"; then
4117   cat > $TMPC << EOF
4118 #include <linux/usbdevice_fs.h>
4119
4120 #ifndef USBDEVFS_GET_CAPABILITIES
4121 #error "USBDEVFS_GET_CAPABILITIES undefined"
4122 #endif
4123
4124 #ifndef USBDEVFS_DISCONNECT_CLAIM
4125 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
4126 #endif
4127
4128 int main(void)
4129 {
4130     return 0;
4131 }
4132 EOF
4133   if compile_prog "" ""; then
4134     have_usbfs=yes
4135   fi
4136 fi
4137
4138 # check for fallocate
4139 fallocate=no
4140 cat > $TMPC << EOF
4141 #include <fcntl.h>
4142
4143 int main(void)
4144 {
4145     fallocate(0, 0, 0, 0);
4146     return 0;
4147 }
4148 EOF
4149 if compile_prog "" "" ; then
4150   fallocate=yes
4151 fi
4152
4153 # check for fallocate hole punching
4154 fallocate_punch_hole=no
4155 cat > $TMPC << EOF
4156 #include <fcntl.h>
4157 #include <linux/falloc.h>
4158
4159 int main(void)
4160 {
4161     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
4162     return 0;
4163 }
4164 EOF
4165 if compile_prog "" "" ; then
4166   fallocate_punch_hole=yes
4167 fi
4168
4169 # check that fallocate supports range zeroing inside the file
4170 fallocate_zero_range=no
4171 cat > $TMPC << EOF
4172 #include <fcntl.h>
4173 #include <linux/falloc.h>
4174
4175 int main(void)
4176 {
4177     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
4178     return 0;
4179 }
4180 EOF
4181 if compile_prog "" "" ; then
4182   fallocate_zero_range=yes
4183 fi
4184
4185 # check for posix_fallocate
4186 posix_fallocate=no
4187 cat > $TMPC << EOF
4188 #include <fcntl.h>
4189
4190 int main(void)
4191 {
4192     posix_fallocate(0, 0, 0);
4193     return 0;
4194 }
4195 EOF
4196 if compile_prog "" "" ; then
4197     posix_fallocate=yes
4198 fi
4199
4200 # check for sync_file_range
4201 sync_file_range=no
4202 cat > $TMPC << EOF
4203 #include <fcntl.h>
4204
4205 int main(void)
4206 {
4207     sync_file_range(0, 0, 0, 0);
4208     return 0;
4209 }
4210 EOF
4211 if compile_prog "" "" ; then
4212   sync_file_range=yes
4213 fi
4214
4215 # check for linux/fiemap.h and FS_IOC_FIEMAP
4216 fiemap=no
4217 cat > $TMPC << EOF
4218 #include <sys/ioctl.h>
4219 #include <linux/fs.h>
4220 #include <linux/fiemap.h>
4221
4222 int main(void)
4223 {
4224     ioctl(0, FS_IOC_FIEMAP, 0);
4225     return 0;
4226 }
4227 EOF
4228 if compile_prog "" "" ; then
4229   fiemap=yes
4230 fi
4231
4232 # check for dup3
4233 dup3=no
4234 cat > $TMPC << EOF
4235 #include <unistd.h>
4236
4237 int main(void)
4238 {
4239     dup3(0, 0, 0);
4240     return 0;
4241 }
4242 EOF
4243 if compile_prog "" "" ; then
4244   dup3=yes
4245 fi
4246
4247 # check for ppoll support
4248 ppoll=no
4249 cat > $TMPC << EOF
4250 #include <poll.h>
4251
4252 int main(void)
4253 {
4254     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
4255     ppoll(&pfd, 1, 0, 0);
4256     return 0;
4257 }
4258 EOF
4259 if compile_prog "" "" ; then
4260   ppoll=yes
4261 fi
4262
4263 # check for prctl(PR_SET_TIMERSLACK , ... ) support
4264 prctl_pr_set_timerslack=no
4265 cat > $TMPC << EOF
4266 #include <sys/prctl.h>
4267
4268 int main(void)
4269 {
4270     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
4271     return 0;
4272 }
4273 EOF
4274 if compile_prog "" "" ; then
4275   prctl_pr_set_timerslack=yes
4276 fi
4277
4278 # check for epoll support
4279 epoll=no
4280 cat > $TMPC << EOF
4281 #include <sys/epoll.h>
4282
4283 int main(void)
4284 {
4285     epoll_create(0);
4286     return 0;
4287 }
4288 EOF
4289 if compile_prog "" "" ; then
4290   epoll=yes
4291 fi
4292
4293 # epoll_create1 is a later addition
4294 # so we must check separately for its presence
4295 epoll_create1=no
4296 cat > $TMPC << EOF
4297 #include <sys/epoll.h>
4298
4299 int main(void)
4300 {
4301     /* Note that we use epoll_create1 as a value, not as
4302      * a function being called. This is necessary so that on
4303      * old SPARC glibc versions where the function was present in
4304      * the library but not declared in the header file we will
4305      * fail the configure check. (Otherwise we will get a compiler
4306      * warning but not an error, and will proceed to fail the
4307      * qemu compile where we compile with -Werror.)
4308      */
4309     return (int)(uintptr_t)&epoll_create1;
4310 }
4311 EOF
4312 if compile_prog "" "" ; then
4313   epoll_create1=yes
4314 fi
4315
4316 # check for sendfile support
4317 sendfile=no
4318 cat > $TMPC << EOF
4319 #include <sys/sendfile.h>
4320
4321 int main(void)
4322 {
4323     return sendfile(0, 0, 0, 0);
4324 }
4325 EOF
4326 if compile_prog "" "" ; then
4327   sendfile=yes
4328 fi
4329
4330 # check for timerfd support (glibc 2.8 and newer)
4331 timerfd=no
4332 cat > $TMPC << EOF
4333 #include <sys/timerfd.h>
4334
4335 int main(void)
4336 {
4337     return(timerfd_create(CLOCK_REALTIME, 0));
4338 }
4339 EOF
4340 if compile_prog "" "" ; then
4341   timerfd=yes
4342 fi
4343
4344 # check for setns and unshare support
4345 setns=no
4346 cat > $TMPC << EOF
4347 #include <sched.h>
4348
4349 int main(void)
4350 {
4351     int ret;
4352     ret = setns(0, 0);
4353     ret = unshare(0);
4354     return ret;
4355 }
4356 EOF
4357 if compile_prog "" "" ; then
4358   setns=yes
4359 fi
4360
4361 # clock_adjtime probe
4362 clock_adjtime=no
4363 cat > $TMPC <<EOF
4364 #include <time.h>
4365
4366 int main(void)
4367 {
4368     return clock_adjtime(0, 0);
4369 }
4370 EOF
4371 clock_adjtime=no
4372 if compile_prog "" "" ; then
4373   clock_adjtime=yes
4374 fi
4375
4376 # syncfs probe
4377 syncfs=no
4378 cat > $TMPC <<EOF
4379 #include <unistd.h>
4380
4381 int main(void)
4382 {
4383     return syncfs(0);
4384 }
4385 EOF
4386 syncfs=no
4387 if compile_prog "" "" ; then
4388   syncfs=yes
4389 fi
4390
4391 # Search for bswap_32 function
4392 byteswap_h=no
4393 cat > $TMPC << EOF
4394 #include <byteswap.h>
4395 int main(void) { return bswap_32(0); }
4396 EOF
4397 if compile_prog "" "" ; then
4398   byteswap_h=yes
4399 fi
4400
4401 # Search for bswap32 function
4402 bswap_h=no
4403 cat > $TMPC << EOF
4404 #include <sys/endian.h>
4405 #include <sys/types.h>
4406 #include <machine/bswap.h>
4407 int main(void) { return bswap32(0); }
4408 EOF
4409 if compile_prog "" "" ; then
4410   bswap_h=yes
4411 fi
4412
4413 ##########################################
4414 # Do we have libiscsi >= 1.9.0
4415 if test "$libiscsi" != "no" ; then
4416   if $pkg_config --atleast-version=1.9.0 libiscsi; then
4417     libiscsi="yes"
4418     libiscsi_cflags=$($pkg_config --cflags libiscsi)
4419     libiscsi_libs=$($pkg_config --libs libiscsi)
4420   else
4421     if test "$libiscsi" = "yes" ; then
4422       feature_not_found "libiscsi" "Install libiscsi >= 1.9.0"
4423     fi
4424     libiscsi="no"
4425   fi
4426 fi
4427
4428 ##########################################
4429 # Do we need librt
4430 # uClibc provides 2 versions of clock_gettime(), one with realtime
4431 # support and one without. This means that the clock_gettime() don't
4432 # need -lrt. We still need it for timer_create() so we check for this
4433 # function in addition.
4434 cat > $TMPC <<EOF
4435 #include <signal.h>
4436 #include <time.h>
4437 int main(void) {
4438   timer_create(CLOCK_REALTIME, NULL, NULL);
4439   return clock_gettime(CLOCK_REALTIME, NULL);
4440 }
4441 EOF
4442
4443 if compile_prog "" "" ; then
4444   :
4445 # we need pthread for static linking. use previous pthread test result
4446 elif compile_prog "" "$pthread_lib -lrt" ; then
4447   LIBS="$LIBS -lrt"
4448 fi
4449
4450 # Check whether we have openpty() in either libc or libutil
4451 cat > $TMPC << EOF
4452 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
4453 int main(void) { return openpty(0, 0, 0, 0, 0); }
4454 EOF
4455
4456 have_openpty="no"
4457 if compile_prog "" "" ; then
4458   have_openpty="yes"
4459 else
4460   if compile_prog "" "-lutil" ; then
4461     have_openpty="yes"
4462   fi
4463 fi
4464
4465 ##########################################
4466 # spice probe
4467 if test "$spice" != "no" ; then
4468   cat > $TMPC << EOF
4469 #include <spice.h>
4470 int main(void) { spice_server_new(); return 0; }
4471 EOF
4472   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
4473   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
4474   if $pkg_config --atleast-version=0.12.5 spice-server && \
4475      $pkg_config --atleast-version=0.12.3 spice-protocol && \
4476      compile_prog "$spice_cflags" "$spice_libs" ; then
4477     spice="yes"
4478   else
4479     if test "$spice" = "yes" ; then
4480       feature_not_found "spice" \
4481           "Install spice-server(>=0.12.5) and spice-protocol(>=0.12.3) devel"
4482     fi
4483     spice="no"
4484   fi
4485 fi
4486
4487 # check for smartcard support
4488 if test "$smartcard" != "no"; then
4489     if $pkg_config --atleast-version=2.5.1 libcacard; then
4490         libcacard_cflags=$($pkg_config --cflags libcacard)
4491         libcacard_libs=$($pkg_config --libs libcacard)
4492         smartcard="yes"
4493     else
4494         if test "$smartcard" = "yes"; then
4495             feature_not_found "smartcard" "Install libcacard devel"
4496         fi
4497         smartcard="no"
4498     fi
4499 fi
4500
4501 # check for libusb
4502 if test "$libusb" != "no" ; then
4503     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
4504         libusb="yes"
4505         libusb_cflags=$($pkg_config --cflags libusb-1.0)
4506         libusb_libs=$($pkg_config --libs libusb-1.0)
4507     else
4508         if test "$libusb" = "yes"; then
4509             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
4510         fi
4511         libusb="no"
4512     fi
4513 fi
4514
4515 # check for usbredirparser for usb network redirection support
4516 if test "$usb_redir" != "no" ; then
4517     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
4518         usb_redir="yes"
4519         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
4520         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
4521     else
4522         if test "$usb_redir" = "yes"; then
4523             feature_not_found "usb-redir" "Install usbredir devel"
4524         fi
4525         usb_redir="no"
4526     fi
4527 fi
4528
4529 ##########################################
4530 # check if we have VSS SDK headers for win
4531
4532 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4533         test "$vss_win32_sdk" != "no" ; then
4534   case "$vss_win32_sdk" in
4535     "")   vss_win32_include="-isystem $source_path" ;;
4536     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
4537           # handle path with spaces. So we symlink the headers into ".sdk/vss".
4538           vss_win32_include="-isystem $source_path/.sdk/vss"
4539           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
4540           ;;
4541     *)    vss_win32_include="-isystem $vss_win32_sdk"
4542   esac
4543   cat > $TMPC << EOF
4544 #define __MIDL_user_allocate_free_DEFINED__
4545 #include <inc/win2003/vss.h>
4546 int main(void) { return VSS_CTX_BACKUP; }
4547 EOF
4548   if compile_prog "$vss_win32_include" "" ; then
4549     guest_agent_with_vss="yes"
4550     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
4551     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
4552     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
4553   else
4554     if test "$vss_win32_sdk" != "" ; then
4555       echo "ERROR: Please download and install Microsoft VSS SDK:"
4556       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
4557       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
4558       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
4559       echo "ERROR: The headers are extracted in the directory \`inc'."
4560       feature_not_found "VSS support"
4561     fi
4562     guest_agent_with_vss="no"
4563   fi
4564 fi
4565
4566 ##########################################
4567 # lookup Windows platform SDK (if not specified)
4568 # The SDK is needed only to build .tlb (type library) file of guest agent
4569 # VSS provider from the source. It is usually unnecessary because the
4570 # pre-compiled .tlb file is included.
4571
4572 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4573         test "$guest_agent_with_vss" = "yes" ; then
4574   if test -z "$win_sdk"; then
4575     programfiles="$PROGRAMFILES"
4576     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
4577     if test -n "$programfiles"; then
4578       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
4579     else
4580       feature_not_found "Windows SDK"
4581     fi
4582   elif test "$win_sdk" = "no"; then
4583     win_sdk=""
4584   fi
4585 fi
4586
4587 ##########################################
4588 # check if mingw environment provides a recent ntddscsi.h
4589 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
4590   cat > $TMPC << EOF
4591 #include <windows.h>
4592 #include <ntddscsi.h>
4593 int main(void) {
4594 #if !defined(IOCTL_SCSI_GET_ADDRESS)
4595 #error Missing required ioctl definitions
4596 #endif
4597   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
4598   return addr.Lun;
4599 }
4600 EOF
4601   if compile_prog "" "" ; then
4602     guest_agent_ntddscsi=yes
4603     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
4604   fi
4605 fi
4606
4607 ##########################################
4608 # virgl renderer probe
4609
4610 if test "$virglrenderer" != "no" ; then
4611   cat > $TMPC << EOF
4612 #include <virglrenderer.h>
4613 int main(void) { virgl_renderer_poll(); return 0; }
4614 EOF
4615   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
4616   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
4617   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
4618   if $pkg_config virglrenderer >/dev/null 2>&1 && \
4619      compile_prog "$virgl_cflags" "$virgl_libs" ; then
4620     virglrenderer="yes"
4621   else
4622     if test "$virglrenderer" = "yes" ; then
4623       feature_not_found "virglrenderer"
4624     fi
4625     virglrenderer="no"
4626   fi
4627 fi
4628
4629 ##########################################
4630 # capstone
4631
4632 case "$capstone" in
4633   auto | enabled | internal)
4634     # Simpler to always update submodule, even if not needed.
4635     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
4636       git_submodules="${git_submodules} capstone"
4637     fi
4638     ;;
4639 esac
4640
4641 ##########################################
4642 # check if we have fdatasync
4643
4644 fdatasync=no
4645 cat > $TMPC << EOF
4646 #include <unistd.h>
4647 int main(void) {
4648 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
4649 return fdatasync(0);
4650 #else
4651 #error Not supported
4652 #endif
4653 }
4654 EOF
4655 if compile_prog "" "" ; then
4656     fdatasync=yes
4657 fi
4658
4659 ##########################################
4660 # check if we have madvise
4661
4662 madvise=no
4663 cat > $TMPC << EOF
4664 #include <sys/types.h>
4665 #include <sys/mman.h>
4666 #include <stddef.h>
4667 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
4668 EOF
4669 if compile_prog "" "" ; then
4670     madvise=yes
4671 fi
4672
4673 ##########################################
4674 # check if we have posix_madvise
4675
4676 posix_madvise=no
4677 cat > $TMPC << EOF
4678 #include <sys/mman.h>
4679 #include <stddef.h>
4680 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
4681 EOF
4682 if compile_prog "" "" ; then
4683     posix_madvise=yes
4684 fi
4685
4686 ##########################################
4687 # check if we have posix_memalign()
4688
4689 posix_memalign=no
4690 cat > $TMPC << EOF
4691 #include <stdlib.h>
4692 int main(void) {
4693     void *p;
4694     return posix_memalign(&p, 8, 8);
4695 }
4696 EOF
4697 if compile_prog "" "" ; then
4698     posix_memalign=yes
4699 fi
4700
4701 ##########################################
4702 # check if we have posix_syslog
4703
4704 posix_syslog=no
4705 cat > $TMPC << EOF
4706 #include <syslog.h>
4707 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
4708 EOF
4709 if compile_prog "" "" ; then
4710     posix_syslog=yes
4711 fi
4712
4713 ##########################################
4714 # check if we have sem_timedwait
4715
4716 sem_timedwait=no
4717 cat > $TMPC << EOF
4718 #include <semaphore.h>
4719 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
4720 EOF
4721 if compile_prog "" "" ; then
4722     sem_timedwait=yes
4723 fi
4724
4725 ##########################################
4726 # check if we have strchrnul
4727
4728 strchrnul=no
4729 cat > $TMPC << EOF
4730 #include <string.h>
4731 int main(void);
4732 // Use a haystack that the compiler shouldn't be able to constant fold
4733 char *haystack = (char*)&main;
4734 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
4735 EOF
4736 if compile_prog "" "" ; then
4737     strchrnul=yes
4738 fi
4739
4740 #########################################
4741 # check if we have st_atim
4742
4743 st_atim=no
4744 cat > $TMPC << EOF
4745 #include <sys/stat.h>
4746 #include <stddef.h>
4747 int main(void) { return offsetof(struct stat, st_atim); }
4748 EOF
4749 if compile_prog "" "" ; then
4750     st_atim=yes
4751 fi
4752
4753 ##########################################
4754 # check if trace backend exists
4755
4756 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
4757 if test "$?" -ne 0 ; then
4758   error_exit "invalid trace backends" \
4759       "Please choose supported trace backends."
4760 fi
4761
4762 ##########################################
4763 # For 'ust' backend, test if ust headers are present
4764 if have_backend "ust"; then
4765   cat > $TMPC << EOF
4766 #include <lttng/tracepoint.h>
4767 int main(void) { return 0; }
4768 EOF
4769   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
4770     if $pkg_config lttng-ust --exists; then
4771       lttng_ust_libs=$($pkg_config --libs lttng-ust)
4772     else
4773       lttng_ust_libs="-llttng-ust -ldl"
4774     fi
4775     if $pkg_config liburcu-bp --exists; then
4776       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
4777     else
4778       urcu_bp_libs="-lurcu-bp"
4779     fi
4780   else
4781     error_exit "Trace backend 'ust' missing lttng-ust header files"
4782   fi
4783 fi
4784
4785 ##########################################
4786 # For 'dtrace' backend, test if 'dtrace' command is present
4787 if have_backend "dtrace"; then
4788   if ! has 'dtrace' ; then
4789     error_exit "dtrace command is not found in PATH $PATH"
4790   fi
4791   trace_backend_stap="no"
4792   if has 'stap' ; then
4793     trace_backend_stap="yes"
4794
4795     # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
4796     # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
4797     # instead. QEMU --enable-modules depends on this because the SystemTap
4798     # semaphores are linked into the main binary and not the module's shared
4799     # object.
4800     QEMU_CFLAGS="$QEMU_CFLAGS -DSTAP_SDT_V2"
4801   fi
4802 fi
4803
4804 ##########################################
4805 # check and set a backend for coroutine
4806
4807 # We prefer ucontext, but it's not always possible. The fallback
4808 # is sigcontext. On Windows the only valid backend is the Windows
4809 # specific one.
4810
4811 ucontext_works=no
4812 if test "$darwin" != "yes"; then
4813   cat > $TMPC << EOF
4814 #include <ucontext.h>
4815 #ifdef __stub_makecontext
4816 #error Ignoring glibc stub makecontext which will always fail
4817 #endif
4818 int main(void) { makecontext(0, 0, 0); return 0; }
4819 EOF
4820   if compile_prog "" "" ; then
4821     ucontext_works=yes
4822   fi
4823 fi
4824
4825 if test "$coroutine" = ""; then
4826   if test "$mingw32" = "yes"; then
4827     coroutine=win32
4828   elif test "$ucontext_works" = "yes"; then
4829     coroutine=ucontext
4830   else
4831     coroutine=sigaltstack
4832   fi
4833 else
4834   case $coroutine in
4835   windows)
4836     if test "$mingw32" != "yes"; then
4837       error_exit "'windows' coroutine backend only valid for Windows"
4838     fi
4839     # Unfortunately the user visible backend name doesn't match the
4840     # coroutine-*.c filename for this case, so we have to adjust it here.
4841     coroutine=win32
4842     ;;
4843   ucontext)
4844     if test "$ucontext_works" != "yes"; then
4845       feature_not_found "ucontext"
4846     fi
4847     ;;
4848   sigaltstack)
4849     if test "$mingw32" = "yes"; then
4850       error_exit "only the 'windows' coroutine backend is valid for Windows"
4851     fi
4852     ;;
4853   *)
4854     error_exit "unknown coroutine backend $coroutine"
4855     ;;
4856   esac
4857 fi
4858
4859 if test "$coroutine_pool" = ""; then
4860   coroutine_pool=yes
4861 fi
4862
4863 if test "$debug_stack_usage" = "yes"; then
4864   if test "$coroutine_pool" = "yes"; then
4865     echo "WARN: disabling coroutine pool for stack usage debugging"
4866     coroutine_pool=no
4867   fi
4868 fi
4869
4870 ##################################################
4871 # SafeStack
4872
4873
4874 if test "$safe_stack" = "yes"; then
4875 cat > $TMPC << EOF
4876 int main(int argc, char *argv[])
4877 {
4878 #if ! __has_feature(safe_stack)
4879 #error SafeStack Disabled
4880 #endif
4881     return 0;
4882 }
4883 EOF
4884   flag="-fsanitize=safe-stack"
4885   # Check that safe-stack is supported and enabled.
4886   if compile_prog "-Werror $flag" "$flag"; then
4887     # Flag needed both at compilation and at linking
4888     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4889     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4890   else
4891     error_exit "SafeStack not supported by your compiler"
4892   fi
4893   if test "$coroutine" != "ucontext"; then
4894     error_exit "SafeStack is only supported by the coroutine backend ucontext"
4895   fi
4896 else
4897 cat > $TMPC << EOF
4898 int main(int argc, char *argv[])
4899 {
4900 #if defined(__has_feature)
4901 #if __has_feature(safe_stack)
4902 #error SafeStack Enabled
4903 #endif
4904 #endif
4905     return 0;
4906 }
4907 EOF
4908 if test "$safe_stack" = "no"; then
4909   # Make sure that safe-stack is disabled
4910   if ! compile_prog "-Werror" ""; then
4911     # SafeStack was already enabled, try to explicitly remove the feature
4912     flag="-fno-sanitize=safe-stack"
4913     if ! compile_prog "-Werror $flag" "$flag"; then
4914       error_exit "Configure cannot disable SafeStack"
4915     fi
4916     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4917     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4918   fi
4919 else # "$safe_stack" = ""
4920   # Set safe_stack to yes or no based on pre-existing flags
4921   if compile_prog "-Werror" ""; then
4922     safe_stack="no"
4923   else
4924     safe_stack="yes"
4925     if test "$coroutine" != "ucontext"; then
4926       error_exit "SafeStack is only supported by the coroutine backend ucontext"
4927     fi
4928   fi
4929 fi
4930 fi
4931
4932 ##########################################
4933 # check if we have open_by_handle_at
4934
4935 open_by_handle_at=no
4936 cat > $TMPC << EOF
4937 #include <fcntl.h>
4938 #if !defined(AT_EMPTY_PATH)
4939 # error missing definition
4940 #else
4941 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
4942 #endif
4943 EOF
4944 if compile_prog "" "" ; then
4945     open_by_handle_at=yes
4946 fi
4947
4948 ########################################
4949 # check if we have linux/magic.h
4950
4951 linux_magic_h=no
4952 cat > $TMPC << EOF
4953 #include <linux/magic.h>
4954 int main(void) {
4955   return 0;
4956 }
4957 EOF
4958 if compile_prog "" "" ; then
4959     linux_magic_h=yes
4960 fi
4961
4962 ########################################
4963 # check if we have valgrind/valgrind.h
4964
4965 valgrind_h=no
4966 cat > $TMPC << EOF
4967 #include <valgrind/valgrind.h>
4968 int main(void) {
4969   return 0;
4970 }
4971 EOF
4972 if compile_prog "" "" ; then
4973     valgrind_h=yes
4974 fi
4975
4976 ########################################
4977 # check if environ is declared
4978
4979 has_environ=no
4980 cat > $TMPC << EOF
4981 #include <unistd.h>
4982 int main(void) {
4983     environ = 0;
4984     return 0;
4985 }
4986 EOF
4987 if compile_prog "" "" ; then
4988     has_environ=yes
4989 fi
4990
4991 ########################################
4992 # check if cpuid.h is usable.
4993
4994 cat > $TMPC << EOF
4995 #include <cpuid.h>
4996 int main(void) {
4997     unsigned a, b, c, d;
4998     int max = __get_cpuid_max(0, 0);
4999
5000     if (max >= 1) {
5001         __cpuid(1, a, b, c, d);
5002     }
5003
5004     if (max >= 7) {
5005         __cpuid_count(7, 0, a, b, c, d);
5006     }
5007
5008     return 0;
5009 }
5010 EOF
5011 if compile_prog "" "" ; then
5012     cpuid_h=yes
5013 fi
5014
5015 ##########################################
5016 # avx2 optimization requirement check
5017 #
5018 # There is no point enabling this if cpuid.h is not usable,
5019 # since we won't be able to select the new routines.
5020
5021 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
5022   cat > $TMPC << EOF
5023 #pragma GCC push_options
5024 #pragma GCC target("avx2")
5025 #include <cpuid.h>
5026 #include <immintrin.h>
5027 static int bar(void *a) {
5028     __m256i x = *(__m256i *)a;
5029     return _mm256_testz_si256(x, x);
5030 }
5031 int main(int argc, char *argv[]) { return bar(argv[0]); }
5032 EOF
5033   if compile_object "" ; then
5034     avx2_opt="yes"
5035   else
5036     avx2_opt="no"
5037   fi
5038 fi
5039
5040 ##########################################
5041 # avx512f optimization requirement check
5042 #
5043 # There is no point enabling this if cpuid.h is not usable,
5044 # since we won't be able to select the new routines.
5045 # by default, it is turned off.
5046 # if user explicitly want to enable it, check environment
5047
5048 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
5049   cat > $TMPC << EOF
5050 #pragma GCC push_options
5051 #pragma GCC target("avx512f")
5052 #include <cpuid.h>
5053 #include <immintrin.h>
5054 static int bar(void *a) {
5055     __m512i x = *(__m512i *)a;
5056     return _mm512_test_epi64_mask(x, x);
5057 }
5058 int main(int argc, char *argv[])
5059 {
5060         return bar(argv[0]);
5061 }
5062 EOF
5063   if ! compile_object "" ; then
5064     avx512f_opt="no"
5065   fi
5066 else
5067   avx512f_opt="no"
5068 fi
5069
5070 ########################################
5071 # check if __[u]int128_t is usable.
5072
5073 int128=no
5074 cat > $TMPC << EOF
5075 __int128_t a;
5076 __uint128_t b;
5077 int main (void) {
5078   a = a + b;
5079   b = a * b;
5080   a = a * a;
5081   return 0;
5082 }
5083 EOF
5084 if compile_prog "" "" ; then
5085     int128=yes
5086 fi
5087
5088 #########################################
5089 # See if 128-bit atomic operations are supported.
5090
5091 atomic128=no
5092 if test "$int128" = "yes"; then
5093   cat > $TMPC << EOF
5094 int main(void)
5095 {
5096   unsigned __int128 x = 0, y = 0;
5097   y = __atomic_load_16(&x, 0);
5098   __atomic_store_16(&x, y, 0);
5099   __atomic_compare_exchange_16(&x, &y, x, 0, 0, 0);
5100   return 0;
5101 }
5102 EOF
5103   if compile_prog "" "" ; then
5104     atomic128=yes
5105   fi
5106 fi
5107
5108 cmpxchg128=no
5109 if test "$int128" = yes && test "$atomic128" = no; then
5110   cat > $TMPC << EOF
5111 int main(void)
5112 {
5113   unsigned __int128 x = 0, y = 0;
5114   __sync_val_compare_and_swap_16(&x, y, x);
5115   return 0;
5116 }
5117 EOF
5118   if compile_prog "" "" ; then
5119     cmpxchg128=yes
5120   fi
5121 fi
5122
5123 #########################################
5124 # See if 64-bit atomic operations are supported.
5125 # Note that without __atomic builtins, we can only
5126 # assume atomic loads/stores max at pointer size.
5127
5128 cat > $TMPC << EOF
5129 #include <stdint.h>
5130 int main(void)
5131 {
5132   uint64_t x = 0, y = 0;
5133 #ifdef __ATOMIC_RELAXED
5134   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
5135   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
5136   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
5137   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
5138   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
5139 #else
5140   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
5141   __sync_lock_test_and_set(&x, y);
5142   __sync_val_compare_and_swap(&x, y, 0);
5143   __sync_fetch_and_add(&x, y);
5144 #endif
5145   return 0;
5146 }
5147 EOF
5148 if compile_prog "" "" ; then
5149   atomic64=yes
5150 fi
5151
5152 #########################################
5153 # See if --dynamic-list is supported by the linker
5154 ld_dynamic_list="no"
5155 if test "$static" = "no" ; then
5156     cat > $TMPTXT <<EOF
5157 {
5158   foo;
5159 };
5160 EOF
5161
5162     cat > $TMPC <<EOF
5163 #include <stdio.h>
5164 void foo(void);
5165
5166 void foo(void)
5167 {
5168   printf("foo\n");
5169 }
5170
5171 int main(void)
5172 {
5173   foo();
5174   return 0;
5175 }
5176 EOF
5177
5178     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
5179         ld_dynamic_list="yes"
5180     fi
5181 fi
5182
5183 #########################################
5184 # See if -exported_symbols_list is supported by the linker
5185
5186 ld_exported_symbols_list="no"
5187 if test "$static" = "no" ; then
5188     cat > $TMPTXT <<EOF
5189   _foo
5190 EOF
5191
5192     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
5193         ld_exported_symbols_list="yes"
5194     fi
5195 fi
5196
5197 if  test "$plugins" = "yes" &&
5198     test "$ld_dynamic_list" = "no" &&
5199     test "$ld_exported_symbols_list" = "no" ; then
5200   error_exit \
5201       "Plugin support requires dynamic linking and specifying a set of symbols " \
5202       "that are exported to plugins. Unfortunately your linker doesn't " \
5203       "support the flag (--dynamic-list or -exported_symbols_list) used " \
5204       "for this purpose. You can't build with --static."
5205 fi
5206
5207 ########################################
5208 # See if __attribute__((alias)) is supported.
5209 # This false for Xcode 9, but has been remedied for Xcode 10.
5210 # Unfortunately, travis uses Xcode 9 by default.
5211
5212 attralias=no
5213 cat > $TMPC << EOF
5214 int x = 1;
5215 extern const int y __attribute__((alias("x")));
5216 int main(void) { return 0; }
5217 EOF
5218 if compile_prog "" "" ; then
5219     attralias=yes
5220 fi
5221
5222 ########################################
5223 # check if getauxval is available.
5224
5225 getauxval=no
5226 cat > $TMPC << EOF
5227 #include <sys/auxv.h>
5228 int main(void) {
5229   return getauxval(AT_HWCAP) == 0;
5230 }
5231 EOF
5232 if compile_prog "" "" ; then
5233     getauxval=yes
5234 fi
5235
5236 ########################################
5237 # check if ccache is interfering with
5238 # semantic analysis of macros
5239
5240 unset CCACHE_CPP2
5241 ccache_cpp2=no
5242 cat > $TMPC << EOF
5243 static const int Z = 1;
5244 #define fn() ({ Z; })
5245 #define TAUT(X) ((X) == Z)
5246 #define PAREN(X, Y) (X == Y)
5247 #define ID(X) (X)
5248 int main(int argc, char *argv[])
5249 {
5250     int x = 0, y = 0;
5251     x = ID(x);
5252     x = fn();
5253     fn();
5254     if (PAREN(x, y)) return 0;
5255     if (TAUT(Z)) return 0;
5256     return 0;
5257 }
5258 EOF
5259
5260 if ! compile_object "-Werror"; then
5261     ccache_cpp2=yes
5262 fi
5263
5264 #################################################
5265 # clang does not support glibc + FORTIFY_SOURCE.
5266
5267 if test "$fortify_source" != "no"; then
5268   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
5269     fortify_source="no";
5270   elif test -n "$cxx" && has $cxx &&
5271        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
5272     fortify_source="no";
5273   else
5274     fortify_source="yes"
5275   fi
5276 fi
5277
5278 ###############################################
5279 # Check if copy_file_range is provided by glibc
5280 have_copy_file_range=no
5281 cat > $TMPC << EOF
5282 #include <unistd.h>
5283 int main(void) {
5284   copy_file_range(0, NULL, 0, NULL, 0, 0);
5285   return 0;
5286 }
5287 EOF
5288 if compile_prog "" "" ; then
5289     have_copy_file_range=yes
5290 fi
5291
5292 ##########################################
5293 # check if struct fsxattr is available via linux/fs.h
5294
5295 have_fsxattr=no
5296 cat > $TMPC << EOF
5297 #include <linux/fs.h>
5298 struct fsxattr foo;
5299 int main(void) {
5300   return 0;
5301 }
5302 EOF
5303 if compile_prog "" "" ; then
5304     have_fsxattr=yes
5305 fi
5306
5307 ##########################################
5308 # check for usable membarrier system call
5309 if test "$membarrier" = "yes"; then
5310     have_membarrier=no
5311     if test "$mingw32" = "yes" ; then
5312         have_membarrier=yes
5313     elif test "$linux" = "yes" ; then
5314         cat > $TMPC << EOF
5315     #include <linux/membarrier.h>
5316     #include <sys/syscall.h>
5317     #include <unistd.h>
5318     #include <stdlib.h>
5319     int main(void) {
5320         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
5321         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
5322         exit(0);
5323     }
5324 EOF
5325         if compile_prog "" "" ; then
5326             have_membarrier=yes
5327         fi
5328     fi
5329     if test "$have_membarrier" = "no"; then
5330       feature_not_found "membarrier" "membarrier system call not available"
5331     fi
5332 else
5333     # Do not enable it by default even for Mingw32, because it doesn't
5334     # work on Wine.
5335     membarrier=no
5336 fi
5337
5338 ##########################################
5339 # check if rtnetlink.h exists and is useful
5340 have_rtnetlink=no
5341 cat > $TMPC << EOF
5342 #include <linux/rtnetlink.h>
5343 int main(void) {
5344   return IFLA_PROTO_DOWN;
5345 }
5346 EOF
5347 if compile_prog "" "" ; then
5348     have_rtnetlink=yes
5349 fi
5350
5351 ##########################################
5352 # check for usable AF_VSOCK environment
5353 have_af_vsock=no
5354 cat > $TMPC << EOF
5355 #include <errno.h>
5356 #include <sys/types.h>
5357 #include <sys/socket.h>
5358 #if !defined(AF_VSOCK)
5359 # error missing AF_VSOCK flag
5360 #endif
5361 #include <linux/vm_sockets.h>
5362 int main(void) {
5363     int sock, ret;
5364     struct sockaddr_vm svm;
5365     socklen_t len = sizeof(svm);
5366     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
5367     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
5368     if ((ret == -1) && (errno == ENOTCONN)) {
5369         return 0;
5370     }
5371     return -1;
5372 }
5373 EOF
5374 if compile_prog "" "" ; then
5375     have_af_vsock=yes
5376 fi
5377
5378 ##########################################
5379 # check for usable AF_ALG environment
5380 have_afalg=no
5381 cat > $TMPC << EOF
5382 #include <errno.h>
5383 #include <sys/types.h>
5384 #include <sys/socket.h>
5385 #include <linux/if_alg.h>
5386 int main(void) {
5387     int sock;
5388     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
5389     return sock;
5390 }
5391 EOF
5392 if compile_prog "" "" ; then
5393     have_afalg=yes
5394 fi
5395 if test "$crypto_afalg" = "yes"
5396 then
5397     if test "$have_afalg" != "yes"
5398     then
5399         error_exit "AF_ALG requested but could not be detected"
5400     fi
5401 fi
5402
5403
5404 #################################################
5405 # check for sysmacros.h
5406
5407 have_sysmacros=no
5408 cat > $TMPC << EOF
5409 #include <sys/sysmacros.h>
5410 int main(void) {
5411     return makedev(0, 0);
5412 }
5413 EOF
5414 if compile_prog "" "" ; then
5415     have_sysmacros=yes
5416 fi
5417
5418 ##########################################
5419 # check for _Static_assert()
5420
5421 have_static_assert=no
5422 cat > $TMPC << EOF
5423 _Static_assert(1, "success");
5424 int main(void) {
5425     return 0;
5426 }
5427 EOF
5428 if compile_prog "" "" ; then
5429     have_static_assert=yes
5430 fi
5431
5432 ##########################################
5433 # check for utmpx.h, it is missing e.g. on OpenBSD
5434
5435 have_utmpx=no
5436 cat > $TMPC << EOF
5437 #include <utmpx.h>
5438 struct utmpx user_info;
5439 int main(void) {
5440     return 0;
5441 }
5442 EOF
5443 if compile_prog "" "" ; then
5444     have_utmpx=yes
5445 fi
5446
5447 ##########################################
5448 # check for getrandom()
5449
5450 have_getrandom=no
5451 cat > $TMPC << EOF
5452 #include <sys/random.h>
5453 int main(void) {
5454     return getrandom(0, 0, GRND_NONBLOCK);
5455 }
5456 EOF
5457 if compile_prog "" "" ; then
5458     have_getrandom=yes
5459 fi
5460
5461 ##########################################
5462 # checks for sanitizers
5463
5464 have_asan=no
5465 have_ubsan=no
5466 have_asan_iface_h=no
5467 have_asan_iface_fiber=no
5468
5469 if test "$sanitizers" = "yes" ; then
5470   write_c_skeleton
5471   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
5472       have_asan=yes
5473   fi
5474
5475   # we could use a simple skeleton for flags checks, but this also
5476   # detect the static linking issue of ubsan, see also:
5477   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
5478   cat > $TMPC << EOF
5479 #include <stdlib.h>
5480 int main(void) {
5481     void *tmp = malloc(10);
5482     if (tmp != NULL) {
5483         return *(int *)(tmp + 2);
5484     }
5485     return 1;
5486 }
5487 EOF
5488   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
5489       have_ubsan=yes
5490   fi
5491
5492   if check_include "sanitizer/asan_interface.h" ; then
5493       have_asan_iface_h=yes
5494   fi
5495
5496   cat > $TMPC << EOF
5497 #include <sanitizer/asan_interface.h>
5498 int main(void) {
5499   __sanitizer_start_switch_fiber(0, 0, 0);
5500   return 0;
5501 }
5502 EOF
5503   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
5504       have_asan_iface_fiber=yes
5505   fi
5506 fi
5507
5508 ##########################################
5509 # checks for fuzzer
5510 if test "$fuzzing" = "yes" && test -z "${LIB_FUZZING_ENGINE+xxx}"; then
5511   write_c_fuzzer_skeleton
5512   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
5513     have_fuzzer=yes
5514   else
5515     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
5516     exit 1
5517   fi
5518 fi
5519
5520 # Thread sanitizer is, for now, much noisier than the other sanitizers;
5521 # keep it separate until that is not the case.
5522 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
5523   error_exit "TSAN is not supported with other sanitiziers."
5524 fi
5525 have_tsan=no
5526 have_tsan_iface_fiber=no
5527 if test "$tsan" = "yes" ; then
5528   write_c_skeleton
5529   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5530       have_tsan=yes
5531   fi
5532   cat > $TMPC << EOF
5533 #include <sanitizer/tsan_interface.h>
5534 int main(void) {
5535   __tsan_create_fiber(0);
5536   return 0;
5537 }
5538 EOF
5539   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5540       have_tsan_iface_fiber=yes
5541   fi
5542 fi
5543
5544 ##########################################
5545 # check for libpmem
5546
5547 if test "$libpmem" != "no"; then
5548         if $pkg_config --exists "libpmem"; then
5549                 libpmem="yes"
5550                 libpmem_libs=$($pkg_config --libs libpmem)
5551                 libpmem_cflags=$($pkg_config --cflags libpmem)
5552         else
5553                 if test "$libpmem" = "yes" ; then
5554                         feature_not_found "libpmem" "Install nvml or pmdk"
5555                 fi
5556                 libpmem="no"
5557         fi
5558 fi
5559
5560 ##########################################
5561 # check for libdaxctl
5562
5563 if test "$libdaxctl" != "no"; then
5564         if $pkg_config --atleast-version=57 "libdaxctl"; then
5565                 libdaxctl="yes"
5566                 libdaxctl_libs=$($pkg_config --libs libdaxctl)
5567                 libdaxctl_cflags=$($pkg_config --cflags libdaxctl)
5568         else
5569                 if test "$libdaxctl" = "yes" ; then
5570                         feature_not_found "libdaxctl" "Install libdaxctl"
5571                 fi
5572                 libdaxctl="no"
5573         fi
5574 fi
5575
5576 ##########################################
5577 # check for slirp
5578
5579 case "$slirp" in
5580   auto | enabled | internal)
5581     # Simpler to always update submodule, even if not needed.
5582     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
5583       git_submodules="${git_submodules} slirp"
5584     fi
5585     ;;
5586 esac
5587
5588 ##########################################
5589 # check for usable __NR_keyctl syscall
5590
5591 if test "$linux" = "yes" ; then
5592
5593     have_keyring=no
5594     cat > $TMPC << EOF
5595 #include <errno.h>
5596 #include <asm/unistd.h>
5597 #include <linux/keyctl.h>
5598 #include <unistd.h>
5599 int main(void) {
5600     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
5601 }
5602 EOF
5603     if compile_prog "" "" ; then
5604         have_keyring=yes
5605     fi
5606 fi
5607 if test "$secret_keyring" != "no"
5608 then
5609     if test "$have_keyring" = "yes"
5610     then
5611         secret_keyring=yes
5612     else
5613         if test "$secret_keyring" = "yes"
5614         then
5615             error_exit "syscall __NR_keyctl requested, \
5616 but not implemented on your system"
5617         else
5618             secret_keyring=no
5619         fi
5620     fi
5621 fi
5622
5623 ##########################################
5624 # End of CC checks
5625 # After here, no more $cc or $ld runs
5626
5627 write_c_skeleton
5628
5629 if test "$gcov" = "yes" ; then
5630   :
5631 elif test "$fortify_source" = "yes" ; then
5632   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
5633   debug=no
5634 fi
5635
5636 case "$ARCH" in
5637 alpha)
5638   # Ensure there's only a single GP
5639   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
5640 ;;
5641 esac
5642
5643 if test "$gprof" = "yes" ; then
5644   QEMU_CFLAGS="-p $QEMU_CFLAGS"
5645   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
5646 fi
5647
5648 if test "$have_asan" = "yes"; then
5649   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
5650   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
5651   if test "$have_asan_iface_h" = "no" ; then
5652       echo "ASAN build enabled, but ASAN header missing." \
5653            "Without code annotation, the report may be inferior."
5654   elif test "$have_asan_iface_fiber" = "no" ; then
5655       echo "ASAN build enabled, but ASAN header is too old." \
5656            "Without code annotation, the report may be inferior."
5657   fi
5658 fi
5659 if test "$have_tsan" = "yes" ; then
5660   if test "$have_tsan_iface_fiber" = "yes" ; then
5661     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
5662     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
5663   else
5664     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
5665   fi
5666 elif test "$tsan" = "yes" ; then
5667   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
5668 fi
5669 if test "$have_ubsan" = "yes"; then
5670   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
5671   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
5672 fi
5673
5674 ##########################################
5675 # Do we have libnfs
5676 if test "$libnfs" != "no" ; then
5677   if $pkg_config --atleast-version=1.9.3 libnfs; then
5678     libnfs="yes"
5679     libnfs_libs=$($pkg_config --libs libnfs)
5680   else
5681     if test "$libnfs" = "yes" ; then
5682       feature_not_found "libnfs" "Install libnfs devel >= 1.9.3"
5683     fi
5684     libnfs="no"
5685   fi
5686 fi
5687
5688 ##########################################
5689
5690 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
5691 if test "$solaris" = "no" && test "$tsan" = "no"; then
5692     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
5693         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
5694     fi
5695 fi
5696
5697 # Use ASLR, no-SEH and DEP if available
5698 if test "$mingw32" = "yes" ; then
5699     flags="--no-seh --nxcompat"
5700
5701     # Disable ASLR for debug builds to allow debugging with gdb
5702     if test "$debug" = "no" ; then
5703         flags="--dynamicbase $flags"
5704     fi
5705
5706     for flag in $flags; do
5707         if ld_has $flag ; then
5708             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
5709         fi
5710     done
5711 fi
5712
5713 # We can only support ivshmem if we have eventfd
5714 if [ "$eventfd" = "yes" ]; then
5715   ivshmem=yes
5716 fi
5717
5718 if test "$softmmu" = yes ; then
5719   if test "$linux" = yes; then
5720     if test "$virtfs" != no && test "$cap_ng" = yes && test "$attr" = yes ; then
5721       virtfs=yes
5722     else
5723       if test "$virtfs" = yes; then
5724         error_exit "VirtFS requires libcap-ng devel and libattr devel"
5725       fi
5726       virtfs=no
5727     fi
5728   else
5729     if test "$virtfs" = yes; then
5730       error_exit "VirtFS is supported only on Linux"
5731     fi
5732     virtfs=no
5733   fi
5734 fi
5735
5736 # Probe for guest agent support/options
5737
5738 if [ "$guest_agent" != "no" ]; then
5739   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
5740       guest_agent=no
5741   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
5742       guest_agent=yes
5743   elif [ "$guest_agent" != yes ]; then
5744       guest_agent=no
5745   else
5746       error_exit "Guest agent is not supported on this platform"
5747   fi
5748 fi
5749
5750 # Guest agent Window MSI  package
5751
5752 if test "$guest_agent" != yes; then
5753   if test "$guest_agent_msi" = yes; then
5754     error_exit "MSI guest agent package requires guest agent enabled"
5755   fi
5756   guest_agent_msi=no
5757 elif test "$mingw32" != "yes"; then
5758   if test "$guest_agent_msi" = "yes"; then
5759     error_exit "MSI guest agent package is available only for MinGW Windows cross-compilation"
5760   fi
5761   guest_agent_msi=no
5762 elif ! has wixl; then
5763   if test "$guest_agent_msi" = "yes"; then
5764     error_exit "MSI guest agent package requires wixl tool installed ( usually from msitools package )"
5765   fi
5766   guest_agent_msi=no
5767 else
5768   # we support qemu-ga, mingw32, and wixl: default to MSI enabled if it wasn't
5769   # disabled explicitly
5770   if test "$guest_agent_msi" != "no"; then
5771     guest_agent_msi=yes
5772   fi
5773 fi
5774
5775 if test "$guest_agent_msi" = "yes"; then
5776   if test "$guest_agent_with_vss" = "yes"; then
5777     QEMU_GA_MSI_WITH_VSS="-D InstallVss"
5778   fi
5779
5780   if test "$QEMU_GA_MANUFACTURER" = ""; then
5781     QEMU_GA_MANUFACTURER=QEMU
5782   fi
5783
5784   if test "$QEMU_GA_DISTRO" = ""; then
5785     QEMU_GA_DISTRO=Linux
5786   fi
5787
5788   if test "$QEMU_GA_VERSION" = ""; then
5789       QEMU_GA_VERSION=$(cat $source_path/VERSION)
5790   fi
5791
5792   QEMU_GA_MSI_MINGW_DLL_PATH="-D Mingw_dlls=$($pkg_config --variable=prefix glib-2.0)/bin"
5793
5794   case "$cpu" in
5795   x86_64)
5796     QEMU_GA_MSI_ARCH="-a x64 -D Arch=64"
5797     ;;
5798   i386)
5799     QEMU_GA_MSI_ARCH="-D Arch=32"
5800     ;;
5801   *)
5802     error_exit "CPU $cpu not supported for building installation package"
5803     ;;
5804   esac
5805 fi
5806
5807 # Mac OS X ships with a broken assembler
5808 roms=
5809 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
5810         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
5811         test "$targetos" != "Haiku" && test "$softmmu" = yes ; then
5812     # Different host OS linkers have different ideas about the name of the ELF
5813     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
5814     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
5815     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
5816         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
5817             ld_i386_emulation="$emu"
5818             roms="optionrom"
5819             break
5820         fi
5821     done
5822 fi
5823
5824 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
5825 if test "$cpu" = "s390x" ; then
5826   write_c_skeleton
5827   if compile_prog "-march=z900" ""; then
5828     roms="$roms s390-ccw"
5829     # SLOF is required for building the s390-ccw firmware on s390x,
5830     # since it is using the libnet code from SLOF for network booting.
5831     if test -e "${source_path}/.git" ; then
5832       git_submodules="${git_submodules} roms/SLOF"
5833     fi
5834   fi
5835 fi
5836
5837 # Check that the C++ compiler exists and works with the C compiler.
5838 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
5839 if has $cxx; then
5840     cat > $TMPC <<EOF
5841 int c_function(void);
5842 int main(void) { return c_function(); }
5843 EOF
5844
5845     compile_object
5846
5847     cat > $TMPCXX <<EOF
5848 extern "C" {
5849    int c_function(void);
5850 }
5851 int c_function(void) { return 42; }
5852 EOF
5853
5854     update_cxxflags
5855
5856     if do_cxx $CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
5857         # C++ compiler $cxx works ok with C compiler $cc
5858         :
5859     else
5860         echo "C++ compiler $cxx does not work with C compiler $cc"
5861         echo "Disabling C++ specific optional code"
5862         cxx=
5863     fi
5864 else
5865     echo "No C++ compiler available; disabling C++ specific optional code"
5866     cxx=
5867 fi
5868
5869 if test $git_update = 'yes' ; then
5870     (cd "${source_path}" && GIT="$git" "./scripts/git-submodule.sh" update "$git_submodules")
5871 fi
5872
5873 config_host_mak="config-host.mak"
5874
5875 echo "# Automatically generated by configure - do not modify" > $config_host_mak
5876 echo >> $config_host_mak
5877
5878 echo all: >> $config_host_mak
5879 echo "GIT=$git" >> $config_host_mak
5880 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
5881 echo "GIT_UPDATE=$git_update" >> $config_host_mak
5882
5883 echo "ARCH=$ARCH" >> $config_host_mak
5884
5885 if test "$default_devices" = "yes" ; then
5886   echo "CONFIG_MINIKCONF_MODE=--defconfig" >> $config_host_mak
5887 else
5888   echo "CONFIG_MINIKCONF_MODE=--allnoconfig" >> $config_host_mak
5889 fi
5890 if test "$debug_tcg" = "yes" ; then
5891   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
5892 fi
5893 if test "$strip_opt" = "yes" ; then
5894   echo "STRIP=${strip}" >> $config_host_mak
5895 fi
5896 if test "$bigendian" = "yes" ; then
5897   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
5898 fi
5899 if test "$mingw32" = "yes" ; then
5900   echo "CONFIG_WIN32=y" >> $config_host_mak
5901   rc_version=$(cat $source_path/VERSION)
5902   version_major=${rc_version%%.*}
5903   rc_version=${rc_version#*.}
5904   version_minor=${rc_version%%.*}
5905   rc_version=${rc_version#*.}
5906   version_subminor=${rc_version%%.*}
5907   version_micro=0
5908   echo "CONFIG_FILEVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
5909   echo "CONFIG_PRODUCTVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
5910   if test "$guest_agent_with_vss" = "yes" ; then
5911     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
5912     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
5913     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
5914   fi
5915   if test "$guest_agent_ntddscsi" = "yes" ; then
5916     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
5917   fi
5918   if test "$guest_agent_msi" = "yes"; then
5919     echo "CONFIG_QGA_MSI=y" >> $config_host_mak
5920     echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
5921     echo "QEMU_GA_MSI_WITH_VSS=${QEMU_GA_MSI_WITH_VSS}" >> $config_host_mak
5922     echo "QEMU_GA_MSI_ARCH=${QEMU_GA_MSI_ARCH}" >> $config_host_mak
5923     echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
5924     echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
5925     echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
5926   fi
5927 else
5928   echo "CONFIG_POSIX=y" >> $config_host_mak
5929 fi
5930
5931 if test "$linux" = "yes" ; then
5932   echo "CONFIG_LINUX=y" >> $config_host_mak
5933 fi
5934
5935 if test "$darwin" = "yes" ; then
5936   echo "CONFIG_DARWIN=y" >> $config_host_mak
5937 fi
5938
5939 if test "$solaris" = "yes" ; then
5940   echo "CONFIG_SOLARIS=y" >> $config_host_mak
5941 fi
5942 if test "$haiku" = "yes" ; then
5943   echo "CONFIG_HAIKU=y" >> $config_host_mak
5944 fi
5945 if test "$static" = "yes" ; then
5946   echo "CONFIG_STATIC=y" >> $config_host_mak
5947 fi
5948 if test "$profiler" = "yes" ; then
5949   echo "CONFIG_PROFILER=y" >> $config_host_mak
5950 fi
5951 if test "$want_tools" = "yes" ; then
5952   echo "CONFIG_TOOLS=y" >> $config_host_mak
5953 fi
5954 if test "$guest_agent" = "yes" ; then
5955   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
5956 fi
5957 echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
5958 if test "$vde" = "yes" ; then
5959   echo "CONFIG_VDE=y" >> $config_host_mak
5960   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
5961 fi
5962 if test "$netmap" = "yes" ; then
5963   echo "CONFIG_NETMAP=y" >> $config_host_mak
5964 fi
5965 if test "$l2tpv3" = "yes" ; then
5966   echo "CONFIG_L2TPV3=y" >> $config_host_mak
5967 fi
5968 if test "$gprof" = "yes" ; then
5969   echo "CONFIG_GPROF=y" >> $config_host_mak
5970 fi
5971 if test "$cap_ng" = "yes" ; then
5972   echo "CONFIG_LIBCAP_NG=y" >> $config_host_mak
5973   echo "LIBCAP_NG_LIBS=$cap_libs" >> $config_host_mak
5974 fi
5975 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
5976 for drv in $audio_drv_list; do
5977     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
5978     echo "$def=y" >> $config_host_mak
5979 done
5980 if test "$alsa" = "yes" ; then
5981     echo "CONFIG_ALSA=y" >> $config_host_mak
5982 fi
5983 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
5984 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
5985 if test "$libpulse" = "yes" ; then
5986     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
5987 fi
5988 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
5989 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
5990 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
5991 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
5992 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
5993 if test "$libjack" = "yes" ; then
5994     echo "CONFIG_LIBJACK=y" >> $config_host_mak
5995 fi
5996 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
5997 if test "$audio_win_int" = "yes" ; then
5998   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
5999 fi
6000 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
6001 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
6002 if test "$xfs" = "yes" ; then
6003   echo "CONFIG_XFS=y" >> $config_host_mak
6004 fi
6005 qemu_version=$(head $source_path/VERSION)
6006 echo "PKGVERSION=$pkgversion" >>$config_host_mak
6007 echo "SRC_PATH=$source_path" >> $config_host_mak
6008 echo "TARGET_DIRS=$target_list" >> $config_host_mak
6009 if test "$modules" = "yes"; then
6010   # $shacmd can generate a hash started with digit, which the compiler doesn't
6011   # like as an symbol. So prefix it with an underscore
6012   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
6013   echo "CONFIG_MODULES=y" >> $config_host_mak
6014 fi
6015 if test "$module_upgrades" = "yes"; then
6016   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
6017 fi
6018 if test "$have_x11" = "yes" && test "$need_x11" = "yes"; then
6019   echo "CONFIG_X11=y" >> $config_host_mak
6020   echo "X11_CFLAGS=$x11_cflags" >> $config_host_mak
6021   echo "X11_LIBS=$x11_libs" >> $config_host_mak
6022 fi
6023 if test "$pipe2" = "yes" ; then
6024   echo "CONFIG_PIPE2=y" >> $config_host_mak
6025 fi
6026 if test "$accept4" = "yes" ; then
6027   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
6028 fi
6029 if test "$splice" = "yes" ; then
6030   echo "CONFIG_SPLICE=y" >> $config_host_mak
6031 fi
6032 if test "$eventfd" = "yes" ; then
6033   echo "CONFIG_EVENTFD=y" >> $config_host_mak
6034 fi
6035 if test "$memfd" = "yes" ; then
6036   echo "CONFIG_MEMFD=y" >> $config_host_mak
6037 fi
6038 if test "$have_usbfs" = "yes" ; then
6039   echo "CONFIG_USBFS=y" >> $config_host_mak
6040 fi
6041 if test "$fallocate" = "yes" ; then
6042   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
6043 fi
6044 if test "$fallocate_punch_hole" = "yes" ; then
6045   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
6046 fi
6047 if test "$fallocate_zero_range" = "yes" ; then
6048   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
6049 fi
6050 if test "$posix_fallocate" = "yes" ; then
6051   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
6052 fi
6053 if test "$sync_file_range" = "yes" ; then
6054   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
6055 fi
6056 if test "$fiemap" = "yes" ; then
6057   echo "CONFIG_FIEMAP=y" >> $config_host_mak
6058 fi
6059 if test "$dup3" = "yes" ; then
6060   echo "CONFIG_DUP3=y" >> $config_host_mak
6061 fi
6062 if test "$ppoll" = "yes" ; then
6063   echo "CONFIG_PPOLL=y" >> $config_host_mak
6064 fi
6065 if test "$prctl_pr_set_timerslack" = "yes" ; then
6066   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
6067 fi
6068 if test "$epoll" = "yes" ; then
6069   echo "CONFIG_EPOLL=y" >> $config_host_mak
6070 fi
6071 if test "$epoll_create1" = "yes" ; then
6072   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
6073 fi
6074 if test "$sendfile" = "yes" ; then
6075   echo "CONFIG_SENDFILE=y" >> $config_host_mak
6076 fi
6077 if test "$timerfd" = "yes" ; then
6078   echo "CONFIG_TIMERFD=y" >> $config_host_mak
6079 fi
6080 if test "$setns" = "yes" ; then
6081   echo "CONFIG_SETNS=y" >> $config_host_mak
6082 fi
6083 if test "$clock_adjtime" = "yes" ; then
6084   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
6085 fi
6086 if test "$syncfs" = "yes" ; then
6087   echo "CONFIG_SYNCFS=y" >> $config_host_mak
6088 fi
6089 if test "$inotify" = "yes" ; then
6090   echo "CONFIG_INOTIFY=y" >> $config_host_mak
6091 fi
6092 if test "$inotify1" = "yes" ; then
6093   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
6094 fi
6095 if test "$sem_timedwait" = "yes" ; then
6096   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
6097 fi
6098 if test "$strchrnul" = "yes" ; then
6099   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
6100 fi
6101 if test "$st_atim" = "yes" ; then
6102   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
6103 fi
6104 if test "$byteswap_h" = "yes" ; then
6105   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
6106 fi
6107 if test "$bswap_h" = "yes" ; then
6108   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
6109 fi
6110 if test "$curl" = "yes" ; then
6111   echo "CONFIG_CURL=y" >> $config_host_mak
6112   echo "CURL_CFLAGS=$curl_cflags" >> $config_host_mak
6113   echo "CURL_LIBS=$curl_libs" >> $config_host_mak
6114 fi
6115 if test "$brlapi" = "yes" ; then
6116   echo "CONFIG_BRLAPI=y" >> $config_host_mak
6117   echo "BRLAPI_LIBS=$brlapi_libs" >> $config_host_mak
6118 fi
6119 if test "$gtk" = "yes" ; then
6120   echo "CONFIG_GTK=y" >> $config_host_mak
6121   echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
6122   echo "GTK_LIBS=$gtk_libs" >> $config_host_mak
6123   if test "$gtk_gl" = "yes" ; then
6124     echo "CONFIG_GTK_GL=y" >> $config_host_mak
6125   fi
6126 fi
6127 if test "$gio" = "yes" ; then
6128     echo "CONFIG_GIO=y" >> $config_host_mak
6129     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
6130     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
6131     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
6132 fi
6133 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
6134 if test "$gnutls" = "yes" ; then
6135   echo "CONFIG_GNUTLS=y" >> $config_host_mak
6136   echo "GNUTLS_CFLAGS=$gnutls_cflags" >> $config_host_mak
6137   echo "GNUTLS_LIBS=$gnutls_libs" >> $config_host_mak
6138 fi
6139 if test "$gcrypt" = "yes" ; then
6140   echo "CONFIG_GCRYPT=y" >> $config_host_mak
6141   if test "$gcrypt_hmac" = "yes" ; then
6142     echo "CONFIG_GCRYPT_HMAC=y" >> $config_host_mak
6143   fi
6144   echo "GCRYPT_CFLAGS=$gcrypt_cflags" >> $config_host_mak
6145   echo "GCRYPT_LIBS=$gcrypt_libs" >> $config_host_mak
6146 fi
6147 if test "$nettle" = "yes" ; then
6148   echo "CONFIG_NETTLE=y" >> $config_host_mak
6149   echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
6150   echo "NETTLE_CFLAGS=$nettle_cflags" >> $config_host_mak
6151   echo "NETTLE_LIBS=$nettle_libs" >> $config_host_mak
6152 fi
6153 if test "$qemu_private_xts" = "yes" ; then
6154   echo "CONFIG_QEMU_PRIVATE_XTS=y" >> $config_host_mak
6155 fi
6156 if test "$tasn1" = "yes" ; then
6157   echo "CONFIG_TASN1=y" >> $config_host_mak
6158 fi
6159 if test "$auth_pam" = "yes" ; then
6160     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
6161 fi
6162 if test "$have_broken_size_max" = "yes" ; then
6163     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
6164 fi
6165 if test "$have_openpty" = "yes" ; then
6166     echo "HAVE_OPENPTY=y" >> $config_host_mak
6167 fi
6168
6169 # Work around a system header bug with some kernel/XFS header
6170 # versions where they both try to define 'struct fsxattr':
6171 # xfs headers will not try to redefine structs from linux headers
6172 # if this macro is set.
6173 if test "$have_fsxattr" = "yes" ; then
6174     echo "HAVE_FSXATTR=y" >> $config_host_mak
6175 fi
6176 if test "$have_copy_file_range" = "yes" ; then
6177     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
6178 fi
6179 if test "$vte" = "yes" ; then
6180   echo "CONFIG_VTE=y" >> $config_host_mak
6181   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
6182   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
6183 fi
6184 if test "$virglrenderer" = "yes" ; then
6185   echo "CONFIG_VIRGL=y" >> $config_host_mak
6186   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
6187   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
6188 fi
6189 if test "$xen" = "enabled" ; then
6190   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
6191   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
6192   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
6193   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
6194 fi
6195 if test "$linux_aio" = "yes" ; then
6196   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
6197 fi
6198 if test "$linux_io_uring" = "yes" ; then
6199   echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
6200   echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
6201   echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
6202 fi
6203 if test "$attr" = "yes" ; then
6204   echo "CONFIG_ATTR=y" >> $config_host_mak
6205   echo "LIBATTR_LIBS=$libattr_libs" >> $config_host_mak
6206 fi
6207 if test "$libattr" = "yes" ; then
6208   echo "CONFIG_LIBATTR=y" >> $config_host_mak
6209 fi
6210 if test "$virtfs" = "yes" ; then
6211   echo "CONFIG_VIRTFS=y" >> $config_host_mak
6212 fi
6213 if test "$vhost_scsi" = "yes" ; then
6214   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
6215 fi
6216 if test "$vhost_net" = "yes" ; then
6217   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
6218 fi
6219 if test "$vhost_net_user" = "yes" ; then
6220   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
6221 fi
6222 if test "$vhost_net_vdpa" = "yes" ; then
6223   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
6224 fi
6225 if test "$vhost_crypto" = "yes" ; then
6226   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
6227 fi
6228 if test "$vhost_vsock" = "yes" ; then
6229   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
6230   if test "$vhost_user" = "yes" ; then
6231     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
6232   fi
6233 fi
6234 if test "$vhost_kernel" = "yes" ; then
6235   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
6236 fi
6237 if test "$vhost_user" = "yes" ; then
6238   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
6239 fi
6240 if test "$vhost_vdpa" = "yes" ; then
6241   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
6242 fi
6243 if test "$vhost_user_fs" = "yes" ; then
6244   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
6245 fi
6246 if test "$iovec" = "yes" ; then
6247   echo "CONFIG_IOVEC=y" >> $config_host_mak
6248 fi
6249 if test "$preadv" = "yes" ; then
6250   echo "CONFIG_PREADV=y" >> $config_host_mak
6251 fi
6252 if test "$membarrier" = "yes" ; then
6253   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
6254 fi
6255 if test "$signalfd" = "yes" ; then
6256   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
6257 fi
6258 if test "$optreset" = "yes" ; then
6259   echo "HAVE_OPTRESET=y" >> $config_host_mak
6260 fi
6261 if test "$tcg" = "enabled"; then
6262   if test "$tcg_interpreter" = "yes" ; then
6263     echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
6264   fi
6265 fi
6266 if test "$fdatasync" = "yes" ; then
6267   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
6268 fi
6269 if test "$madvise" = "yes" ; then
6270   echo "CONFIG_MADVISE=y" >> $config_host_mak
6271 fi
6272 if test "$posix_madvise" = "yes" ; then
6273   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
6274 fi
6275 if test "$posix_memalign" = "yes" ; then
6276   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
6277 fi
6278 if test "$spice" = "yes" ; then
6279   echo "CONFIG_SPICE=y" >> $config_host_mak
6280   echo "SPICE_CFLAGS=$spice_cflags" >> $config_host_mak
6281   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
6282 fi
6283
6284 if test "$smartcard" = "yes" ; then
6285   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
6286   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
6287   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
6288 fi
6289
6290 if test "$libusb" = "yes" ; then
6291   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
6292   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
6293   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
6294 fi
6295
6296 if test "$usb_redir" = "yes" ; then
6297   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
6298   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
6299   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
6300 fi
6301
6302 if test "$opengl" = "yes" ; then
6303   echo "CONFIG_OPENGL=y" >> $config_host_mak
6304   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
6305   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
6306   if test "$opengl_dmabuf" = "yes" ; then
6307     echo "CONFIG_OPENGL_DMABUF=y" >> $config_host_mak
6308   fi
6309 fi
6310
6311 if test "$gbm" = "yes" ; then
6312     echo "CONFIG_GBM=y" >> $config_host_mak
6313     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
6314     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
6315 fi
6316
6317
6318 if test "$avx2_opt" = "yes" ; then
6319   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
6320 fi
6321
6322 if test "$avx512f_opt" = "yes" ; then
6323   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
6324 fi
6325
6326 if test "$lzo" = "yes" ; then
6327   echo "CONFIG_LZO=y" >> $config_host_mak
6328   echo "LZO_LIBS=$lzo_libs" >> $config_host_mak
6329 fi
6330
6331 if test "$snappy" = "yes" ; then
6332   echo "CONFIG_SNAPPY=y" >> $config_host_mak
6333   echo "SNAPPY_LIBS=$snappy_libs" >> $config_host_mak
6334 fi
6335
6336 if test "$bzip2" = "yes" ; then
6337   echo "CONFIG_BZIP2=y" >> $config_host_mak
6338   echo "BZIP2_LIBS=-lbz2" >> $config_host_mak
6339 fi
6340
6341 if test "$lzfse" = "yes" ; then
6342   echo "CONFIG_LZFSE=y" >> $config_host_mak
6343   echo "LZFSE_LIBS=-llzfse" >> $config_host_mak
6344 fi
6345
6346 if test "$zstd" = "yes" ; then
6347   echo "CONFIG_ZSTD=y" >> $config_host_mak
6348   echo "ZSTD_CFLAGS=$zstd_cflags" >> $config_host_mak
6349   echo "ZSTD_LIBS=$zstd_libs" >> $config_host_mak
6350 fi
6351
6352 if test "$libiscsi" = "yes" ; then
6353   echo "CONFIG_LIBISCSI=y" >> $config_host_mak
6354   echo "LIBISCSI_CFLAGS=$libiscsi_cflags" >> $config_host_mak
6355   echo "LIBISCSI_LIBS=$libiscsi_libs" >> $config_host_mak
6356 fi
6357
6358 if test "$libnfs" = "yes" ; then
6359   echo "CONFIG_LIBNFS=y" >> $config_host_mak
6360   echo "LIBNFS_LIBS=$libnfs_libs" >> $config_host_mak
6361 fi
6362
6363 if test "$seccomp" = "yes"; then
6364   echo "CONFIG_SECCOMP=y" >> $config_host_mak
6365   echo "SECCOMP_CFLAGS=$seccomp_cflags" >> $config_host_mak
6366   echo "SECCOMP_LIBS=$seccomp_libs" >> $config_host_mak
6367 fi
6368
6369 # XXX: suppress that
6370 if [ "$bsd" = "yes" ] ; then
6371   echo "CONFIG_BSD=y" >> $config_host_mak
6372 fi
6373
6374 if test "$qom_cast_debug" = "yes" ; then
6375   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
6376 fi
6377 if test "$rbd" = "yes" ; then
6378   echo "CONFIG_RBD=y" >> $config_host_mak
6379   echo "RBD_LIBS=$rbd_libs" >> $config_host_mak
6380 fi
6381
6382 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
6383 if test "$coroutine_pool" = "yes" ; then
6384   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
6385 else
6386   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
6387 fi
6388
6389 if test "$debug_stack_usage" = "yes" ; then
6390   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
6391 fi
6392
6393 if test "$crypto_afalg" = "yes" ; then
6394   echo "CONFIG_AF_ALG=y" >> $config_host_mak
6395 fi
6396
6397 if test "$open_by_handle_at" = "yes" ; then
6398   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
6399 fi
6400
6401 if test "$linux_magic_h" = "yes" ; then
6402   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
6403 fi
6404
6405 if test "$valgrind_h" = "yes" ; then
6406   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
6407 fi
6408
6409 if test "$have_asan_iface_fiber" = "yes" ; then
6410     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
6411 fi
6412
6413 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
6414     echo "CONFIG_TSAN=y" >> $config_host_mak
6415 fi
6416
6417 if test "$has_environ" = "yes" ; then
6418   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
6419 fi
6420
6421 if test "$cpuid_h" = "yes" ; then
6422   echo "CONFIG_CPUID_H=y" >> $config_host_mak
6423 fi
6424
6425 if test "$int128" = "yes" ; then
6426   echo "CONFIG_INT128=y" >> $config_host_mak
6427 fi
6428
6429 if test "$atomic128" = "yes" ; then
6430   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
6431 fi
6432
6433 if test "$cmpxchg128" = "yes" ; then
6434   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
6435 fi
6436
6437 if test "$atomic64" = "yes" ; then
6438   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
6439 fi
6440
6441 if test "$attralias" = "yes" ; then
6442   echo "CONFIG_ATTRIBUTE_ALIAS=y" >> $config_host_mak
6443 fi
6444
6445 if test "$getauxval" = "yes" ; then
6446   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
6447 fi
6448
6449 if test "$glusterfs" = "yes" ; then
6450   echo "CONFIG_GLUSTERFS=y" >> $config_host_mak
6451   echo "GLUSTERFS_CFLAGS=$glusterfs_cflags" >> $config_host_mak
6452   echo "GLUSTERFS_LIBS=$glusterfs_libs" >> $config_host_mak
6453 fi
6454
6455 if test "$glusterfs_xlator_opt" = "yes" ; then
6456   echo "CONFIG_GLUSTERFS_XLATOR_OPT=y" >> $config_host_mak
6457 fi
6458
6459 if test "$glusterfs_discard" = "yes" ; then
6460   echo "CONFIG_GLUSTERFS_DISCARD=y" >> $config_host_mak
6461 fi
6462
6463 if test "$glusterfs_fallocate" = "yes" ; then
6464   echo "CONFIG_GLUSTERFS_FALLOCATE=y" >> $config_host_mak
6465 fi
6466
6467 if test "$glusterfs_zerofill" = "yes" ; then
6468   echo "CONFIG_GLUSTERFS_ZEROFILL=y" >> $config_host_mak
6469 fi
6470
6471 if test "$glusterfs_ftruncate_has_stat" = "yes" ; then
6472   echo "CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT=y" >> $config_host_mak
6473 fi
6474
6475 if test "$glusterfs_iocb_has_stat" = "yes" ; then
6476   echo "CONFIG_GLUSTERFS_IOCB_HAS_STAT=y" >> $config_host_mak
6477 fi
6478
6479 if test "$libssh" = "yes" ; then
6480   echo "CONFIG_LIBSSH=y" >> $config_host_mak
6481   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
6482   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
6483 fi
6484
6485 if test "$live_block_migration" = "yes" ; then
6486   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
6487 fi
6488
6489 if test "$tpm" = "yes"; then
6490   echo 'CONFIG_TPM=y' >> $config_host_mak
6491 fi
6492
6493 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
6494 if have_backend "nop"; then
6495   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
6496 fi
6497 if have_backend "simple"; then
6498   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
6499   # Set the appropriate trace file.
6500   trace_file="\"$trace_file-\" FMT_pid"
6501 fi
6502 if have_backend "log"; then
6503   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
6504 fi
6505 if have_backend "ust"; then
6506   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
6507   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
6508   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
6509 fi
6510 if have_backend "dtrace"; then
6511   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
6512   if test "$trace_backend_stap" = "yes" ; then
6513     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
6514   fi
6515 fi
6516 if have_backend "ftrace"; then
6517   if test "$linux" = "yes" ; then
6518     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
6519   else
6520     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
6521   fi
6522 fi
6523 if have_backend "syslog"; then
6524   if test "$posix_syslog" = "yes" ; then
6525     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
6526   else
6527     feature_not_found "syslog(trace backend)" "syslog not available"
6528   fi
6529 fi
6530 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
6531
6532 if test "$rdma" = "yes" ; then
6533   echo "CONFIG_RDMA=y" >> $config_host_mak
6534   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
6535 fi
6536
6537 if test "$pvrdma" = "yes" ; then
6538   echo "CONFIG_PVRDMA=y" >> $config_host_mak
6539 fi
6540
6541 if test "$have_rtnetlink" = "yes" ; then
6542   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
6543 fi
6544
6545 if test "$libxml2" = "yes" ; then
6546   echo "CONFIG_LIBXML2=y" >> $config_host_mak
6547   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
6548   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
6549 fi
6550
6551 if test "$replication" = "yes" ; then
6552   echo "CONFIG_REPLICATION=y" >> $config_host_mak
6553 fi
6554
6555 if test "$have_af_vsock" = "yes" ; then
6556   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
6557 fi
6558
6559 if test "$have_sysmacros" = "yes" ; then
6560   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
6561 fi
6562
6563 if test "$have_static_assert" = "yes" ; then
6564   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
6565 fi
6566
6567 if test "$have_utmpx" = "yes" ; then
6568   echo "HAVE_UTMPX=y" >> $config_host_mak
6569 fi
6570 if test "$have_getrandom" = "yes" ; then
6571   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
6572 fi
6573 if test "$ivshmem" = "yes" ; then
6574   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
6575 fi
6576 if test "$debug_mutex" = "yes" ; then
6577   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
6578 fi
6579
6580 # Hold two types of flag:
6581 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
6582 #                                     a thread we have a handle to
6583 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
6584 #                                     platform
6585 if test "$pthread_setname_np_w_tid" = "yes" ; then
6586   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6587   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
6588 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
6589   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6590   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
6591 fi
6592
6593 if test "$libpmem" = "yes" ; then
6594   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
6595   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
6596   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
6597 fi
6598
6599 if test "$libdaxctl" = "yes" ; then
6600   echo "CONFIG_LIBDAXCTL=y" >> $config_host_mak
6601   echo "LIBDAXCTL_LIBS=$libdaxctl_libs" >> $config_host_mak
6602 fi
6603
6604 if test "$bochs" = "yes" ; then
6605   echo "CONFIG_BOCHS=y" >> $config_host_mak
6606 fi
6607 if test "$cloop" = "yes" ; then
6608   echo "CONFIG_CLOOP=y" >> $config_host_mak
6609 fi
6610 if test "$dmg" = "yes" ; then
6611   echo "CONFIG_DMG=y" >> $config_host_mak
6612 fi
6613 if test "$qcow1" = "yes" ; then
6614   echo "CONFIG_QCOW1=y" >> $config_host_mak
6615 fi
6616 if test "$vdi" = "yes" ; then
6617   echo "CONFIG_VDI=y" >> $config_host_mak
6618 fi
6619 if test "$vvfat" = "yes" ; then
6620   echo "CONFIG_VVFAT=y" >> $config_host_mak
6621 fi
6622 if test "$qed" = "yes" ; then
6623   echo "CONFIG_QED=y" >> $config_host_mak
6624 fi
6625 if test "$parallels" = "yes" ; then
6626   echo "CONFIG_PARALLELS=y" >> $config_host_mak
6627 fi
6628 if test "$sheepdog" = "yes" ; then
6629   add_to deprecated_features "sheepdog"
6630   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
6631 fi
6632 if test "$have_mlockall" = "yes" ; then
6633   echo "HAVE_MLOCKALL=y" >> $config_host_mak
6634 fi
6635 if test "$fuzzing" = "yes" ; then
6636   # If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
6637   # needed CFLAGS have already been provided
6638   if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
6639     QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
6640     FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
6641   else
6642     FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
6643   fi
6644 fi
6645
6646 if test "$plugins" = "yes" ; then
6647     echo "CONFIG_PLUGIN=y" >> $config_host_mak
6648     # Copy the export object list to the build dir
6649     if test "$ld_dynamic_list" = "yes" ; then
6650         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
6651         ld_symbols=qemu-plugins-ld.symbols
6652         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
6653     elif test "$ld_exported_symbols_list" = "yes" ; then
6654         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
6655         ld64_symbols=qemu-plugins-ld64.symbols
6656         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
6657         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
6658             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
6659     else
6660         error_exit \
6661             "If \$plugins=yes, either \$ld_dynamic_list or " \
6662             "\$ld_exported_symbols_list should have been set to 'yes'."
6663     fi
6664 fi
6665
6666 if test -n "$gdb_bin" ; then
6667     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
6668 fi
6669
6670 if test "$secret_keyring" = "yes" ; then
6671   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
6672 fi
6673
6674 echo "ROMS=$roms" >> $config_host_mak
6675 echo "MAKE=$make" >> $config_host_mak
6676 echo "PYTHON=$python" >> $config_host_mak
6677 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
6678 echo "MESON=$meson" >> $config_host_mak
6679 echo "NINJA=$ninja" >> $config_host_mak
6680 echo "CC=$cc" >> $config_host_mak
6681 if $iasl -h > /dev/null 2>&1; then
6682   echo "CONFIG_IASL=$iasl" >> $config_host_mak
6683 fi
6684 echo "CXX=$cxx" >> $config_host_mak
6685 echo "OBJCC=$objcc" >> $config_host_mak
6686 echo "AR=$ar" >> $config_host_mak
6687 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
6688 echo "AS=$as" >> $config_host_mak
6689 echo "CCAS=$ccas" >> $config_host_mak
6690 echo "CPP=$cpp" >> $config_host_mak
6691 echo "OBJCOPY=$objcopy" >> $config_host_mak
6692 echo "LD=$ld" >> $config_host_mak
6693 echo "RANLIB=$ranlib" >> $config_host_mak
6694 echo "NM=$nm" >> $config_host_mak
6695 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
6696 echo "WINDRES=$windres" >> $config_host_mak
6697 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
6698 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
6699 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
6700 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
6701 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
6702 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
6703 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
6704 echo "EXESUF=$EXESUF" >> $config_host_mak
6705 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
6706 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
6707 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
6708 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
6709 if test "$gcov" = "yes" ; then
6710   echo "CONFIG_GCOV=y" >> $config_host_mak
6711 fi
6712
6713 if test "$fuzzing" != "no"; then
6714     echo "CONFIG_FUZZ=y" >> $config_host_mak
6715 fi
6716 echo "FUZZ_EXE_LDFLAGS=$FUZZ_EXE_LDFLAGS" >> $config_host_mak
6717
6718 if test "$rng_none" = "yes"; then
6719   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
6720 fi
6721
6722 # use included Linux headers
6723 if test "$linux" = "yes" ; then
6724   mkdir -p linux-headers
6725   case "$cpu" in
6726   i386|x86_64|x32)
6727     linux_arch=x86
6728     ;;
6729   ppc|ppc64|ppc64le)
6730     linux_arch=powerpc
6731     ;;
6732   s390x)
6733     linux_arch=s390
6734     ;;
6735   aarch64)
6736     linux_arch=arm64
6737     ;;
6738   mips64)
6739     linux_arch=mips
6740     ;;
6741   *)
6742     # For most CPUs the kernel architecture name and QEMU CPU name match.
6743     linux_arch="$cpu"
6744     ;;
6745   esac
6746     # For non-KVM architectures we will not have asm headers
6747     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
6748       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
6749     fi
6750 fi
6751
6752 for target in $target_list; do
6753     target_dir="$target"
6754     target_name=$(echo $target | cut -d '-' -f 1)
6755     mkdir -p $target_dir
6756     case $target in
6757         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
6758         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
6759     esac
6760 done
6761
6762 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
6763 if test "$default_targets" = "yes"; then
6764   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
6765 fi
6766
6767 if test "$numa" = "yes"; then
6768   echo "CONFIG_NUMA=y" >> $config_host_mak
6769   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
6770 fi
6771
6772 if test "$ccache_cpp2" = "yes"; then
6773   echo "export CCACHE_CPP2=y" >> $config_host_mak
6774 fi
6775
6776 if test "$safe_stack" = "yes"; then
6777   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
6778 fi
6779
6780 # If we're using a separate build tree, set it up now.
6781 # DIRS are directories which we simply mkdir in the build tree;
6782 # LINKS are things to symlink back into the source tree
6783 # (these can be both files and directories).
6784 # Caution: do not add files or directories here using wildcards. This
6785 # will result in problems later if a new file matching the wildcard is
6786 # added to the source tree -- nothing will cause configure to be rerun
6787 # so the build tree will be missing the link back to the new file, and
6788 # tests might fail. Prefer to keep the relevant files in their own
6789 # directory and symlink the directory instead.
6790 # UNLINK is used to remove symlinks from older development versions
6791 # that might get into the way when doing "git update" without doing
6792 # a "make distclean" in between.
6793 DIRS="tests tests/tcg tests/tcg/lm32 tests/qapi-schema tests/qtest/libqos"
6794 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
6795 DIRS="$DIRS docs docs/interop fsdev scsi"
6796 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
6797 DIRS="$DIRS roms/seabios"
6798 DIRS="$DIRS contrib/plugins/"
6799 LINKS="Makefile"
6800 LINKS="$LINKS tests/tcg/lm32/Makefile"
6801 LINKS="$LINKS tests/tcg/Makefile.target"
6802 LINKS="$LINKS pc-bios/optionrom/Makefile"
6803 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
6804 LINKS="$LINKS roms/seabios/Makefile"
6805 LINKS="$LINKS pc-bios/qemu-icon.bmp"
6806 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
6807 LINKS="$LINKS tests/acceptance tests/data"
6808 LINKS="$LINKS tests/qemu-iotests/check"
6809 LINKS="$LINKS python"
6810 LINKS="$LINKS contrib/plugins/Makefile "
6811 UNLINK="pc-bios/keymaps"
6812 for bios_file in \
6813     $source_path/pc-bios/*.bin \
6814     $source_path/pc-bios/*.elf \
6815     $source_path/pc-bios/*.lid \
6816     $source_path/pc-bios/*.rom \
6817     $source_path/pc-bios/*.dtb \
6818     $source_path/pc-bios/*.img \
6819     $source_path/pc-bios/openbios-* \
6820     $source_path/pc-bios/u-boot.* \
6821     $source_path/pc-bios/edk2-*.fd.bz2 \
6822     $source_path/pc-bios/palcode-*
6823 do
6824     LINKS="$LINKS pc-bios/$(basename $bios_file)"
6825 done
6826 mkdir -p $DIRS
6827 for f in $LINKS ; do
6828     if [ -e "$source_path/$f" ]; then
6829         symlink "$source_path/$f" "$f"
6830     fi
6831 done
6832 for f in $UNLINK ; do
6833     if [ -L "$f" ]; then
6834         rm -f "$f"
6835     fi
6836 done
6837
6838 (for i in $cross_cc_vars; do
6839   export $i
6840 done
6841 export target_list source_path use_containers
6842 $source_path/tests/tcg/configure.sh)
6843
6844 # temporary config to build submodules
6845 for rom in seabios; do
6846     config_mak=roms/$rom/config.mak
6847     echo "# Automatically generated by configure - do not modify" > $config_mak
6848     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
6849     echo "AS=$as" >> $config_mak
6850     echo "CCAS=$ccas" >> $config_mak
6851     echo "CC=$cc" >> $config_mak
6852     echo "BCC=bcc" >> $config_mak
6853     echo "CPP=$cpp" >> $config_mak
6854     echo "OBJCOPY=objcopy" >> $config_mak
6855     echo "IASL=$iasl" >> $config_mak
6856     echo "LD=$ld" >> $config_mak
6857     echo "RANLIB=$ranlib" >> $config_mak
6858 done
6859
6860 # set up qemu-iotests in this build directory
6861 iotests_common_env="tests/qemu-iotests/common.env"
6862
6863 echo "# Automatically generated by configure - do not modify" > "$iotests_common_env"
6864 echo >> "$iotests_common_env"
6865 echo "export PYTHON='$python'" >> "$iotests_common_env"
6866
6867 if test "$skip_meson" = no; then
6868 cross="config-meson.cross.new"
6869 meson_quote() {
6870     echo "'$(echo $* | sed "s/ /','/g")'"
6871 }
6872
6873 echo "# Automatically generated by configure - do not modify" > $cross
6874 echo "[properties]" >> $cross
6875 test -z "$cxx" && echo "link_language = 'c'" >> $cross
6876 echo "[built-in options]" >> $cross
6877 echo "c_args = [${CFLAGS:+$(meson_quote $CFLAGS)}]" >> $cross
6878 echo "cpp_args = [${CXXFLAGS:+$(meson_quote $CXXFLAGS)}]" >> $cross
6879 echo "c_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6880 echo "cpp_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6881 echo "[binaries]" >> $cross
6882 echo "c = [$(meson_quote $cc)]" >> $cross
6883 test -n "$cxx" && echo "cpp = [$(meson_quote $cxx)]" >> $cross
6884 echo "ar = [$(meson_quote $ar)]" >> $cross
6885 echo "nm = [$(meson_quote $nm)]" >> $cross
6886 echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
6887 echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
6888 if has $sdl2_config; then
6889   echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
6890 fi
6891 echo "strip = [$(meson_quote $strip)]" >> $cross
6892 echo "windres = [$(meson_quote $windres)]" >> $cross
6893 if test -n "$cross_prefix"; then
6894     cross_arg="--cross-file config-meson.cross"
6895     echo "[host_machine]" >> $cross
6896     if test "$mingw32" = "yes" ; then
6897         echo "system = 'windows'" >> $cross
6898     fi
6899     if test "$linux" = "yes" ; then
6900         echo "system = 'linux'" >> $cross
6901     fi
6902     case "$ARCH" in
6903         i386|x86_64)
6904             echo "cpu_family = 'x86'" >> $cross
6905             ;;
6906         ppc64le)
6907             echo "cpu_family = 'ppc64'" >> $cross
6908             ;;
6909         *)
6910             echo "cpu_family = '$ARCH'" >> $cross
6911             ;;
6912     esac
6913     echo "cpu = '$cpu'" >> $cross
6914     if test "$bigendian" = "yes" ; then
6915         echo "endian = 'big'" >> $cross
6916     else
6917         echo "endian = 'little'" >> $cross
6918     fi
6919 else
6920     cross_arg="--native-file config-meson.cross"
6921 fi
6922 mv $cross config-meson.cross
6923
6924 rm -rf meson-private meson-info meson-logs
6925 unset staticpic
6926 if ! version_ge "$($meson --version)" 0.56.0; then
6927   staticpic=$(if test "$pie" = yes; then echo true; else echo false; fi)
6928 fi
6929 NINJA=$ninja $meson setup \
6930         --prefix "$prefix" \
6931         --libdir "$libdir" \
6932         --libexecdir "$libexecdir" \
6933         --bindir "$bindir" \
6934         --includedir "$includedir" \
6935         --datadir "$datadir" \
6936         --mandir "$mandir" \
6937         --sysconfdir "$sysconfdir" \
6938         --localedir "$localedir" \
6939         --localstatedir "$local_statedir" \
6940         -Ddocdir="$docdir" \
6941         -Dqemu_firmwarepath="$firmwarepath" \
6942         -Dqemu_suffix="$qemu_suffix" \
6943         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
6944         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
6945         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
6946         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
6947         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
6948         ${staticpic:+-Db_staticpic=$staticpic} \
6949         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
6950         -Dmalloc=$malloc -Dmalloc_trim=$malloc_trim -Dsparse=$sparse \
6951         -Dkvm=$kvm -Dhax=$hax -Dwhpx=$whpx -Dhvf=$hvf \
6952         -Dxen=$xen -Dxen_pci_passthrough=$xen_pci_passthrough -Dtcg=$tcg \
6953         -Dcocoa=$cocoa -Dmpath=$mpath -Dsdl=$sdl -Dsdl_image=$sdl_image \
6954         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
6955         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f -Dvirtiofsd=$virtiofsd \
6956         -Dcapstone=$capstone -Dslirp=$slirp -Dfdt=$fdt \
6957         -Diconv=$iconv -Dcurses=$curses -Dlibudev=$libudev\
6958         -Ddocs=$docs -Dsphinx_build=$sphinx_build -Dinstall_blobs=$blobs \
6959         -Dvhost_user_blk_server=$vhost_user_blk_server \
6960         -Dfuse=$fuse -Dfuse_lseek=$fuse_lseek \
6961         $cross_arg \
6962         "$PWD" "$source_path"
6963
6964 if test "$?" -ne 0 ; then
6965     error_exit "meson setup failed"
6966 fi
6967 fi
6968
6969 if test -n "${deprecated_features}"; then
6970     echo "Warning, deprecated features enabled."
6971     echo "Please see docs/system/deprecated.rst"
6972     echo "  features: ${deprecated_features}"
6973 fi
6974
6975 # Save the configure command line for later reuse.
6976 cat <<EOD >config.status
6977 #!/bin/sh
6978 # Generated by configure.
6979 # Run this file to recreate the current configuration.
6980 # Compiler output produced by configure, useful for debugging
6981 # configure, is in config.log if it exists.
6982 EOD
6983
6984 preserve_env() {
6985     envname=$1
6986
6987     eval envval=\$$envname
6988
6989     if test -n "$envval"
6990     then
6991         echo "$envname='$envval'" >> config.status
6992         echo "export $envname" >> config.status
6993     else
6994         echo "unset $envname" >> config.status
6995     fi
6996 }
6997
6998 # Preserve various env variables that influence what
6999 # features/build target configure will detect
7000 preserve_env AR
7001 preserve_env AS
7002 preserve_env CC
7003 preserve_env CPP
7004 preserve_env CXX
7005 preserve_env INSTALL
7006 preserve_env LD
7007 preserve_env LD_LIBRARY_PATH
7008 preserve_env LIBTOOL
7009 preserve_env MAKE
7010 preserve_env NM
7011 preserve_env OBJCOPY
7012 preserve_env PATH
7013 preserve_env PKG_CONFIG
7014 preserve_env PKG_CONFIG_LIBDIR
7015 preserve_env PKG_CONFIG_PATH
7016 preserve_env PYTHON
7017 preserve_env SDL2_CONFIG
7018 preserve_env SMBD
7019 preserve_env STRIP
7020 preserve_env WINDRES
7021
7022 printf "exec" >>config.status
7023 for i in "$0" "$@"; do
7024   test "$i" = --skip-meson || printf " '%s'" "$i" >>config.status
7025 done
7026 echo ' "$@"' >>config.status
7027 chmod +x config.status
7028
7029 rm -r "$TMPDIR1"