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=""
 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="$optarg"
 976   ;;
 977   --host=*|--build=*|\
 978   --disable-dependency-tracking|\
 979   --sbindir=*|--sharedstatedir=*|\
 980   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 981   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 982     # These switches are silently ignored, for compatibility with
 983     # autoconf-generated configure scripts. This allows QEMU's
 984     # configure to be used by RPM and similar macros that set
 985     # lots of directory switches by default.
 986   ;;
 987   --disable-sdl) sdl="disabled"
 988   ;;
 989   --enable-sdl) sdl="enabled"
 990   ;;
 991   --disable-sdl-image) sdl_image="disabled"
 992   ;;
 993   --enable-sdl-image) sdl_image="enabled"
 994   ;;
 995   --disable-qom-cast-debug) qom_cast_debug="no"
 996   ;;
 997   --enable-qom-cast-debug) qom_cast_debug="yes"
 998   ;;
 999   --disable-virtfs) virtfs="no"
1000   ;;
1001   --enable-virtfs) virtfs="yes"
1002   ;;
1003   --disable-libudev) libudev="disabled"
1004   ;;
1005   --enable-libudev) libudev="enabled"
1006   ;;
1007   --disable-virtiofsd) virtiofsd="disabled"
1008   ;;
1009   --enable-virtiofsd) virtiofsd="enabled"
1010   ;;
1011   --disable-mpath) mpath="disabled"
1012   ;;
1013   --enable-mpath) mpath="enabled"
1014   ;;
1015   --disable-vnc) vnc="disabled"
1016   ;;
1017   --enable-vnc) vnc="enabled"
1018   ;;
1019   --disable-gettext) gettext="false"
1020   ;;
1021   --enable-gettext) gettext="true"
1022   ;;
1023   --oss-lib=*) oss_lib="$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
2027 nowarn_flags=
2028 add_to nowarn_flags -Wno-initializer-overrides
2029 add_to nowarn_flags -Wno-missing-include-dirs
2030 add_to nowarn_flags -Wno-shift-negative-value
2031 add_to nowarn_flags -Wno-string-plus-int
2032 add_to nowarn_flags -Wno-typedef-redefinition
2033 add_to nowarn_flags -Wno-tautological-type-limit-compare
2034 add_to nowarn_flags -Wno-psabi
2035
2036 gcc_flags="$warn_flags $nowarn_flags"
2037
2038 cc_has_warning_flag() {
2039     write_c_skeleton;
2040
2041     # Use the positive sense of the flag when testing for -Wno-wombat
2042     # support (gcc will happily accept the -Wno- form of unknown
2043     # warning options).
2044     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2045     compile_prog "-Werror $optflag" ""
2046 }
2047
2048 for flag in $gcc_flags; do
2049     if cc_has_warning_flag $flag ; then
2050         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2051     fi
2052 done
2053
2054 if test "$stack_protector" != "no"; then
2055   cat > $TMPC << EOF
2056 int main(int argc, char *argv[])
2057 {
2058     char arr[64], *p = arr, *c = argv[0];
2059     while (*c) {
2060         *p++ = *c++;
2061     }
2062     return 0;
2063 }
2064 EOF
2065   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2066   sp_on=0
2067   for flag in $gcc_flags; do
2068     # We need to check both a compile and a link, since some compiler
2069     # setups fail only on a .c->.o compile and some only at link time
2070     if compile_object "-Werror $flag" &&
2071        compile_prog "-Werror $flag" ""; then
2072       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2073       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2074       sp_on=1
2075       break
2076     fi
2077   done
2078   if test "$stack_protector" = yes; then
2079     if test $sp_on = 0; then
2080       error_exit "Stack protector not supported"
2081     fi
2082   fi
2083 fi
2084
2085 # Disable -Wmissing-braces on older compilers that warn even for
2086 # the "universal" C zero initializer {0}.
2087 cat > $TMPC << EOF
2088 struct {
2089   int a[2];
2090 } x = {0};
2091 EOF
2092 if compile_object "-Werror" "" ; then
2093   :
2094 else
2095   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2096 fi
2097
2098 # Our module code doesn't support Windows
2099 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2100   error_exit "Modules are not available for Windows"
2101 fi
2102
2103 # module_upgrades is only reasonable if modules are enabled
2104 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2105   error_exit "Can't enable module-upgrades as Modules are not enabled"
2106 fi
2107
2108 # Static linking is not possible with modules or PIE
2109 if test "$static" = "yes" ; then
2110   if test "$modules" = "yes" ; then
2111     error_exit "static and modules are mutually incompatible"
2112   fi
2113 fi
2114
2115 # Unconditional check for compiler __thread support
2116   cat > $TMPC << EOF
2117 static __thread int tls_var;
2118 int main(void) { return tls_var; }
2119 EOF
2120
2121 if ! compile_prog "-Werror" "" ; then
2122     error_exit "Your compiler does not support the __thread specifier for " \
2123         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2124 fi
2125
2126 cat > $TMPC << EOF
2127
2128 #ifdef __linux__
2129 #  define THREAD __thread
2130 #else
2131 #  define THREAD
2132 #endif
2133 static THREAD int tls_var;
2134 int main(void) { return tls_var; }
2135 EOF
2136
2137 # Check we support --no-pie first; we will need this for building ROMs.
2138 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2139   CFLAGS_NOPIE="-fno-pie"
2140   LDFLAGS_NOPIE="-no-pie"
2141 fi
2142
2143 if test "$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 $CONFIGURE_CFLAGS"
2156   CONFIGURE_LDFLAGS="$LDFLAGS_NOPIE $CONFIGURE_LDFLAGS"
2157 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2158   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2159   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
2160   pie="yes"
2161 elif test "$pie" = "yes"; then
2162   error_exit "PIE not available due to missing toolchain support"
2163 else
2164   echo "Disabling PIE due to missing toolchain support"
2165   pie="no"
2166 fi
2167
2168 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2169 # The combination is known as "full relro", because .got.plt is read-only too.
2170 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2171   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2172 fi
2173
2174 ##########################################
2175 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2176 # use i686 as default anyway, but for those that don't, an explicit
2177 # specification is necessary
2178
2179 if test "$cpu" = "i386"; then
2180   cat > $TMPC << EOF
2181 static int sfaa(int *ptr)
2182 {
2183   return __sync_fetch_and_and(ptr, 0);
2184 }
2185
2186 int main(void)
2187 {
2188   int val = 42;
2189   val = __sync_val_compare_and_swap(&val, 0, 1);
2190   sfaa(&val);
2191   return val;
2192 }
2193 EOF
2194   if ! compile_prog "" "" ; then
2195     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2196   fi
2197 fi
2198
2199 #########################################
2200 # Solaris specific configure tool chain decisions
2201
2202 if test "$solaris" = "yes" ; then
2203   if has ar; then
2204     :
2205   else
2206     if test -f /usr/ccs/bin/ar ; then
2207       error_exit "No path includes ar" \
2208           "Add /usr/ccs/bin to your path and rerun configure"
2209     fi
2210     error_exit "No path includes ar"
2211   fi
2212 fi
2213
2214 if test -z "${target_list+xxx}" ; then
2215     default_targets=yes
2216     for target in $default_target_list; do
2217         target_list="$target_list $target"
2218     done
2219     target_list="${target_list# }"
2220 else
2221     default_targets=no
2222     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2223     for target in $target_list; do
2224         # Check that we recognised the target name; this allows a more
2225         # friendly error message than if we let it fall through.
2226         case " $default_target_list " in
2227             *" $target "*)
2228                 ;;
2229             *)
2230                 error_exit "Unknown target name '$target'"
2231                 ;;
2232         esac
2233     done
2234 fi
2235
2236 for target in $target_list; do
2237     # if a deprecated target is enabled we note it here
2238     if echo "$deprecated_targets_list" | grep -q "$target"; then
2239         add_to deprecated_features $target
2240     fi
2241 done
2242
2243 # see if system emulation was really requested
2244 case " $target_list " in
2245   *"-softmmu "*) softmmu=yes
2246   ;;
2247   *) softmmu=no
2248   ;;
2249 esac
2250
2251 feature_not_found() {
2252   feature=$1
2253   remedy=$2
2254
2255   error_exit "User requested feature $feature" \
2256       "configure was not able to find it." \
2257       "$remedy"
2258 }
2259
2260 # ---
2261 # big/little endian test
2262 cat > $TMPC << EOF
2263 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2264 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2265 extern int foo(short *, short *);
2266 int main(int argc, char *argv[]) {
2267     return foo(big_endian, little_endian);
2268 }
2269 EOF
2270
2271 if compile_object ; then
2272     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2273         bigendian="yes"
2274     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2275         bigendian="no"
2276     else
2277         echo big/little test failed
2278     fi
2279 else
2280     echo big/little test failed
2281 fi
2282
2283 ##########################################
2284 # system tools
2285 if test -z "$want_tools"; then
2286     if test "$softmmu" = "no"; then
2287         want_tools=no
2288     else
2289         want_tools=yes
2290     fi
2291 fi
2292
2293 ##########################################
2294 # cocoa implies not SDL or GTK
2295 # (the cocoa UI code currently assumes it is always the active UI
2296 # and doesn't interact well with other UI frontend code)
2297 if test "$cocoa" = "enabled"; then
2298     if test "$sdl" = "enabled"; then
2299         error_exit "Cocoa and SDL UIs cannot both be enabled at once"
2300     fi
2301     if test "$gtk" = "yes"; then
2302         error_exit "Cocoa and GTK UIs cannot both be enabled at once"
2303     fi
2304     gtk=no
2305     sdl=disabled
2306 fi
2307
2308 # Some versions of Mac OS X incorrectly define SIZE_MAX
2309 cat > $TMPC << EOF
2310 #include <stdint.h>
2311 #include <stdio.h>
2312 int main(int argc, char *argv[]) {
2313     return printf("%zu", SIZE_MAX);
2314 }
2315 EOF
2316 have_broken_size_max=no
2317 if ! compile_object -Werror ; then
2318     have_broken_size_max=yes
2319 fi
2320
2321 ##########################################
2322 # L2TPV3 probe
2323
2324 cat > $TMPC <<EOF
2325 #include <sys/socket.h>
2326 #include <linux/ip.h>
2327 int main(void) { return sizeof(struct mmsghdr); }
2328 EOF
2329 if compile_prog "" "" ; then
2330   l2tpv3=yes
2331 else
2332   l2tpv3=no
2333 fi
2334
2335 cat > $TMPC <<EOF
2336 #include <sys/mman.h>
2337 int main(int argc, char *argv[]) {
2338     return mlockall(MCL_FUTURE);
2339 }
2340 EOF
2341 if compile_prog "" "" ; then
2342   have_mlockall=yes
2343 else
2344   have_mlockall=no
2345 fi
2346
2347 #########################################
2348 # vhost interdependencies and host support
2349
2350 # vhost backends
2351 if test "$vhost_user" = "yes" && test "$linux" != "yes"; then
2352   error_exit "vhost-user is only available on Linux"
2353 fi
2354 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2355 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2356   error_exit "vhost-vdpa is only available on Linux"
2357 fi
2358 test "$vhost_kernel" = "" && vhost_kernel=$linux
2359 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2360   error_exit "vhost-kernel is only available on Linux"
2361 fi
2362
2363 # vhost-kernel devices
2364 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2365 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2366   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2367 fi
2368 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2369 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2370   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2371 fi
2372
2373 # vhost-user backends
2374 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2375 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2376   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2377 fi
2378 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2379 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2380   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2381 fi
2382 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2383 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2384   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2385 fi
2386 #vhost-vdpa backends
2387 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2388 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2389   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2390 fi
2391
2392 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
2393 if test "$vhost_net" = ""; then
2394   test "$vhost_net_user" = "yes" && vhost_net=yes
2395   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
2396   test "$vhost_kernel" = "yes" && vhost_net=yes
2397 fi
2398
2399 ##########################################
2400 # pkg-config probe
2401
2402 if ! has "$pkg_config_exe"; then
2403   error_exit "pkg-config binary '$pkg_config_exe' not found"
2404 fi
2405
2406 ##########################################
2407 # NPTL probe
2408
2409 if test "$linux_user" = "yes"; then
2410   cat > $TMPC <<EOF
2411 #include <sched.h>
2412 #include <linux/futex.h>
2413 int main(void) {
2414 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2415 #error bork
2416 #endif
2417   return 0;
2418 }
2419 EOF
2420   if ! compile_object ; then
2421     feature_not_found "nptl" "Install glibc and linux kernel headers."
2422   fi
2423 fi
2424
2425 ##########################################
2426 # lzo check
2427
2428 if test "$lzo" != "no" ; then
2429     cat > $TMPC << EOF
2430 #include <lzo/lzo1x.h>
2431 int main(void) { lzo_version(); return 0; }
2432 EOF
2433     if compile_prog "" "-llzo2" ; then
2434         lzo_libs="-llzo2"
2435         lzo="yes"
2436     else
2437         if test "$lzo" = "yes"; then
2438             feature_not_found "liblzo2" "Install liblzo2 devel"
2439         fi
2440         lzo="no"
2441     fi
2442 fi
2443
2444 ##########################################
2445 # snappy check
2446
2447 if test "$snappy" != "no" ; then
2448     cat > $TMPC << EOF
2449 #include <snappy-c.h>
2450 int main(void) { snappy_max_compressed_length(4096); return 0; }
2451 EOF
2452     if compile_prog "" "-lsnappy" ; then
2453         snappy_libs='-lsnappy'
2454         snappy="yes"
2455     else
2456         if test "$snappy" = "yes"; then
2457             feature_not_found "libsnappy" "Install libsnappy devel"
2458         fi
2459         snappy="no"
2460     fi
2461 fi
2462
2463 ##########################################
2464 # bzip2 check
2465
2466 if test "$bzip2" != "no" ; then
2467     cat > $TMPC << EOF
2468 #include <bzlib.h>
2469 int main(void) { BZ2_bzlibVersion(); return 0; }
2470 EOF
2471     if compile_prog "" "-lbz2" ; then
2472         bzip2="yes"
2473     else
2474         if test "$bzip2" = "yes"; then
2475             feature_not_found "libbzip2" "Install libbzip2 devel"
2476         fi
2477         bzip2="no"
2478     fi
2479 fi
2480
2481 ##########################################
2482 # lzfse check
2483
2484 if test "$lzfse" != "no" ; then
2485     cat > $TMPC << EOF
2486 #include <lzfse.h>
2487 int main(void) { lzfse_decode_scratch_size(); return 0; }
2488 EOF
2489     if compile_prog "" "-llzfse" ; then
2490         lzfse="yes"
2491     else
2492         if test "$lzfse" = "yes"; then
2493             feature_not_found "lzfse" "Install lzfse devel"
2494         fi
2495         lzfse="no"
2496     fi
2497 fi
2498
2499 ##########################################
2500 # zstd check
2501
2502 if test "$zstd" != "no" ; then
2503     libzstd_minver="1.4.0"
2504     if $pkg_config --atleast-version=$libzstd_minver libzstd ; then
2505         zstd_cflags="$($pkg_config --cflags libzstd)"
2506         zstd_libs="$($pkg_config --libs libzstd)"
2507         zstd="yes"
2508     else
2509         if test "$zstd" = "yes" ; then
2510             feature_not_found "libzstd" "Install libzstd devel"
2511         fi
2512         zstd="no"
2513     fi
2514 fi
2515
2516 ##########################################
2517 # libseccomp check
2518
2519 if test "$seccomp" != "no" ; then
2520     libseccomp_minver="2.3.0"
2521     if $pkg_config --atleast-version=$libseccomp_minver libseccomp ; then
2522         seccomp_cflags="$($pkg_config --cflags libseccomp)"
2523         seccomp_libs="$($pkg_config --libs libseccomp)"
2524         seccomp="yes"
2525     else
2526         if test "$seccomp" = "yes" ; then
2527             feature_not_found "libseccomp" \
2528                  "Install libseccomp devel >= $libseccomp_minver"
2529         fi
2530         seccomp="no"
2531     fi
2532 fi
2533
2534 ##########################################
2535 # xen probe
2536
2537 if test "$xen" != "disabled" ; then
2538   # Check whether Xen library path is specified via --extra-ldflags to avoid
2539   # overriding this setting with pkg-config output. If not, try pkg-config
2540   # to obtain all needed flags.
2541
2542   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2543      $pkg_config --exists xencontrol ; then
2544     xen_ctrl_version="$(printf '%d%02d%02d' \
2545       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2546     xen=enabled
2547     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
2548     xen_pc="$xen_pc xenevtchn xendevicemodel"
2549     if $pkg_config --exists xentoolcore; then
2550       xen_pc="$xen_pc xentoolcore"
2551     fi
2552     xen_cflags="$($pkg_config --cflags $xen_pc)"
2553     xen_libs="$($pkg_config --libs $xen_pc)"
2554   else
2555
2556     xen_libs="-lxenstore -lxenctrl"
2557     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2558
2559     # First we test whether Xen headers and libraries are available.
2560     # If no, we are done and there is no Xen support.
2561     # If yes, more tests are run to detect the Xen version.
2562
2563     # Xen (any)
2564     cat > $TMPC <<EOF
2565 #include <xenctrl.h>
2566 int main(void) {
2567   return 0;
2568 }
2569 EOF
2570     if ! compile_prog "" "$xen_libs" ; then
2571       # Xen not found
2572       if test "$xen" = "enabled" ; then
2573         feature_not_found "xen" "Install xen devel"
2574       fi
2575       xen=disabled
2576
2577     # Xen unstable
2578     elif
2579         cat > $TMPC <<EOF &&
2580 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2581 #define __XEN_TOOLS__
2582 #include <xendevicemodel.h>
2583 #include <xenforeignmemory.h>
2584 int main(void) {
2585   xendevicemodel_handle *xd;
2586   xenforeignmemory_handle *xfmem;
2587
2588   xd = xendevicemodel_open(0, 0);
2589   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2590
2591   xfmem = xenforeignmemory_open(0, 0);
2592   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2593
2594   return 0;
2595 }
2596 EOF
2597         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2598       then
2599       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2600       xen_ctrl_version=41100
2601       xen=enabled
2602     elif
2603         cat > $TMPC <<EOF &&
2604 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2605 #include <xenforeignmemory.h>
2606 #include <xentoolcore.h>
2607 int main(void) {
2608   xenforeignmemory_handle *xfmem;
2609
2610   xfmem = xenforeignmemory_open(0, 0);
2611   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2612   xentoolcore_restrict_all(0);
2613
2614   return 0;
2615 }
2616 EOF
2617         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2618       then
2619       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2620       xen_ctrl_version=41000
2621       xen=enabled
2622     elif
2623         cat > $TMPC <<EOF &&
2624 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2625 #define __XEN_TOOLS__
2626 #include <xendevicemodel.h>
2627 int main(void) {
2628   xendevicemodel_handle *xd;
2629
2630   xd = xendevicemodel_open(0, 0);
2631   xendevicemodel_close(xd);
2632
2633   return 0;
2634 }
2635 EOF
2636         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2637       then
2638       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2639       xen_ctrl_version=40900
2640       xen=enabled
2641     elif
2642         cat > $TMPC <<EOF &&
2643 /*
2644  * If we have stable libs the we don't want the libxc compat
2645  * layers, regardless of what CFLAGS we may have been given.
2646  *
2647  * Also, check if xengnttab_grant_copy_segment_t is defined and
2648  * grant copy operation is implemented.
2649  */
2650 #undef XC_WANT_COMPAT_EVTCHN_API
2651 #undef XC_WANT_COMPAT_GNTTAB_API
2652 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2653 #include <xenctrl.h>
2654 #include <xenstore.h>
2655 #include <xenevtchn.h>
2656 #include <xengnttab.h>
2657 #include <xenforeignmemory.h>
2658 #include <stdint.h>
2659 #include <xen/hvm/hvm_info_table.h>
2660 #if !defined(HVM_MAX_VCPUS)
2661 # error HVM_MAX_VCPUS not defined
2662 #endif
2663 int main(void) {
2664   xc_interface *xc = NULL;
2665   xenforeignmemory_handle *xfmem;
2666   xenevtchn_handle *xe;
2667   xengnttab_handle *xg;
2668   xengnttab_grant_copy_segment_t* seg = NULL;
2669
2670   xs_daemon_open();
2671
2672   xc = xc_interface_open(0, 0, 0);
2673   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2674   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2675   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2676   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2677
2678   xfmem = xenforeignmemory_open(0, 0);
2679   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2680
2681   xe = xenevtchn_open(0, 0);
2682   xenevtchn_fd(xe);
2683
2684   xg = xengnttab_open(0, 0);
2685   xengnttab_grant_copy(xg, 0, seg);
2686
2687   return 0;
2688 }
2689 EOF
2690         compile_prog "" "$xen_libs $xen_stable_libs"
2691       then
2692       xen_ctrl_version=40800
2693       xen=enabled
2694     elif
2695         cat > $TMPC <<EOF &&
2696 /*
2697  * If we have stable libs the we don't want the libxc compat
2698  * layers, regardless of what CFLAGS we may have been given.
2699  */
2700 #undef XC_WANT_COMPAT_EVTCHN_API
2701 #undef XC_WANT_COMPAT_GNTTAB_API
2702 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2703 #include <xenctrl.h>
2704 #include <xenstore.h>
2705 #include <xenevtchn.h>
2706 #include <xengnttab.h>
2707 #include <xenforeignmemory.h>
2708 #include <stdint.h>
2709 #include <xen/hvm/hvm_info_table.h>
2710 #if !defined(HVM_MAX_VCPUS)
2711 # error HVM_MAX_VCPUS not defined
2712 #endif
2713 int main(void) {
2714   xc_interface *xc = NULL;
2715   xenforeignmemory_handle *xfmem;
2716   xenevtchn_handle *xe;
2717   xengnttab_handle *xg;
2718
2719   xs_daemon_open();
2720
2721   xc = xc_interface_open(0, 0, 0);
2722   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2723   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2724   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2725   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2726
2727   xfmem = xenforeignmemory_open(0, 0);
2728   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2729
2730   xe = xenevtchn_open(0, 0);
2731   xenevtchn_fd(xe);
2732
2733   xg = xengnttab_open(0, 0);
2734   xengnttab_map_grant_ref(xg, 0, 0, 0);
2735
2736   return 0;
2737 }
2738 EOF
2739         compile_prog "" "$xen_libs $xen_stable_libs"
2740       then
2741       xen_ctrl_version=40701
2742       xen=enabled
2743
2744     # Xen 4.6
2745     elif
2746         cat > $TMPC <<EOF &&
2747 #include <xenctrl.h>
2748 #include <xenstore.h>
2749 #include <stdint.h>
2750 #include <xen/hvm/hvm_info_table.h>
2751 #if !defined(HVM_MAX_VCPUS)
2752 # error HVM_MAX_VCPUS not defined
2753 #endif
2754 int main(void) {
2755   xc_interface *xc;
2756   xs_daemon_open();
2757   xc = xc_interface_open(0, 0, 0);
2758   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2759   xc_gnttab_open(NULL, 0);
2760   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2761   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2762   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2763   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2764   return 0;
2765 }
2766 EOF
2767         compile_prog "" "$xen_libs"
2768       then
2769       xen_ctrl_version=40600
2770       xen=enabled
2771
2772     # Xen 4.5
2773     elif
2774         cat > $TMPC <<EOF &&
2775 #include <xenctrl.h>
2776 #include <xenstore.h>
2777 #include <stdint.h>
2778 #include <xen/hvm/hvm_info_table.h>
2779 #if !defined(HVM_MAX_VCPUS)
2780 # error HVM_MAX_VCPUS not defined
2781 #endif
2782 int main(void) {
2783   xc_interface *xc;
2784   xs_daemon_open();
2785   xc = xc_interface_open(0, 0, 0);
2786   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2787   xc_gnttab_open(NULL, 0);
2788   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2789   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2790   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2791   return 0;
2792 }
2793 EOF
2794         compile_prog "" "$xen_libs"
2795       then
2796       xen_ctrl_version=40500
2797       xen=enabled
2798
2799     elif
2800         cat > $TMPC <<EOF &&
2801 #include <xenctrl.h>
2802 #include <xenstore.h>
2803 #include <stdint.h>
2804 #include <xen/hvm/hvm_info_table.h>
2805 #if !defined(HVM_MAX_VCPUS)
2806 # error HVM_MAX_VCPUS not defined
2807 #endif
2808 int main(void) {
2809   xc_interface *xc;
2810   xs_daemon_open();
2811   xc = xc_interface_open(0, 0, 0);
2812   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2813   xc_gnttab_open(NULL, 0);
2814   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2815   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2816   return 0;
2817 }
2818 EOF
2819         compile_prog "" "$xen_libs"
2820       then
2821       xen_ctrl_version=40200
2822       xen=enabled
2823
2824     else
2825       if test "$xen" = "enabled" ; then
2826         feature_not_found "xen (unsupported version)" \
2827                           "Install a supported xen (xen 4.2 or newer)"
2828       fi
2829       xen=disabled
2830     fi
2831
2832     if test "$xen" = enabled; then
2833       if test $xen_ctrl_version -ge 40701  ; then
2834         xen_libs="$xen_libs $xen_stable_libs "
2835       fi
2836     fi
2837   fi
2838 fi
2839
2840 if test "$xen_pci_passthrough" != "disabled"; then
2841   if test "$xen" = "enabled" && test "$linux" = "yes"; then
2842     xen_pci_passthrough=enabled
2843   else
2844     if test "$xen_pci_passthrough" = "enabled"; then
2845       error_exit "User requested feature Xen PCI Passthrough" \
2846           " but this feature requires /sys from Linux"
2847     fi
2848     xen_pci_passthrough=disabled
2849   fi
2850 fi
2851
2852 ##########################################
2853 # gettext probe
2854 if test "$gettext" != "false" ; then
2855   if has xgettext; then
2856     gettext=true
2857   else
2858     if test "$gettext" = "true" ; then
2859       feature_not_found "gettext" "Install xgettext binary"
2860     fi
2861     gettext=false
2862   fi
2863 fi
2864
2865 ##########################################
2866 # X11 probe
2867 if $pkg_config --exists "x11"; then
2868     have_x11=yes
2869     x11_cflags=$($pkg_config --cflags x11)
2870     x11_libs=$($pkg_config --libs x11)
2871 fi
2872
2873 ##########################################
2874 # GTK probe
2875
2876 if test "$gtk" != "no"; then
2877     gtkpackage="gtk+-3.0"
2878     gtkx11package="gtk+-x11-3.0"
2879     gtkversion="3.22.0"
2880     if $pkg_config --exists "$gtkpackage >= $gtkversion"; then
2881         gtk_cflags=$($pkg_config --cflags $gtkpackage)
2882         gtk_libs=$($pkg_config --libs $gtkpackage)
2883         gtk_version=$($pkg_config --modversion $gtkpackage)
2884         if $pkg_config --exists "$gtkx11package >= $gtkversion"; then
2885             need_x11=yes
2886             gtk_cflags="$gtk_cflags $x11_cflags"
2887             gtk_libs="$gtk_libs $x11_libs"
2888         fi
2889         gtk="yes"
2890     elif test "$gtk" = "yes"; then
2891         feature_not_found "gtk" "Install gtk3-devel"
2892     else
2893         gtk="no"
2894     fi
2895 fi
2896
2897
2898 ##########################################
2899 # GNUTLS probe
2900
2901 if test "$gnutls" != "no"; then
2902     pass="no"
2903     if $pkg_config --exists "gnutls >= 3.1.18"; then
2904         gnutls_cflags=$($pkg_config --cflags gnutls)
2905         gnutls_libs=$($pkg_config --libs gnutls)
2906         # Packaging for the static libraries is not always correct.
2907         # At least ubuntu 18.04 ships only shared libraries.
2908         write_c_skeleton
2909         if compile_prog "" "$gnutls_libs" ; then
2910             pass="yes"
2911         fi
2912     fi
2913     if test "$pass" = "no" && test "$gnutls" = "yes"; then
2914         feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
2915     else
2916         gnutls="$pass"
2917     fi
2918 fi
2919
2920
2921 # If user didn't give a --disable/enable-gcrypt flag,
2922 # then mark as disabled if user requested nettle
2923 # explicitly
2924 if test -z "$gcrypt"
2925 then
2926     if test "$nettle" = "yes"
2927     then
2928         gcrypt="no"
2929     fi
2930 fi
2931
2932 # If user didn't give a --disable/enable-nettle flag,
2933 # then mark as disabled if user requested gcrypt
2934 # explicitly
2935 if test -z "$nettle"
2936 then
2937     if test "$gcrypt" = "yes"
2938     then
2939         nettle="no"
2940     fi
2941 fi
2942
2943 has_libgcrypt() {
2944     if ! has "libgcrypt-config"
2945     then
2946         return 1
2947     fi
2948
2949     if test -n "$cross_prefix"
2950     then
2951         host=$(libgcrypt-config --host)
2952         if test "$host-" != $cross_prefix
2953         then
2954             return 1
2955         fi
2956     fi
2957
2958     maj=`libgcrypt-config --version | awk -F . '{print $1}'`
2959     min=`libgcrypt-config --version | awk -F . '{print $2}'`
2960
2961     if test $maj != 1 || test $min -lt 5
2962     then
2963        return 1
2964     fi
2965
2966     return 0
2967 }
2968
2969
2970 if test "$nettle" != "no"; then
2971     pass="no"
2972     if $pkg_config --exists "nettle >= 2.7.1"; then
2973         nettle_cflags=$($pkg_config --cflags nettle)
2974         nettle_libs=$($pkg_config --libs nettle)
2975         nettle_version=$($pkg_config --modversion nettle)
2976         # Link test to make sure the given libraries work (e.g for static).
2977         write_c_skeleton
2978         if compile_prog "" "$nettle_libs" ; then
2979             if test -z "$gcrypt"; then
2980                gcrypt="no"
2981             fi
2982             pass="yes"
2983         fi
2984     fi
2985     if test "$pass" = "yes"
2986     then
2987         cat > $TMPC << EOF
2988 #include <nettle/xts.h>
2989 int main(void) {
2990   return 0;
2991 }
2992 EOF
2993         if compile_prog "$nettle_cflags" "$nettle_libs" ; then
2994             nettle_xts=yes
2995             qemu_private_xts=no
2996         fi
2997     fi
2998     if test "$pass" = "no" && test "$nettle" = "yes"; then
2999         feature_not_found "nettle" "Install nettle devel >= 2.7.1"
3000     else
3001         nettle="$pass"
3002     fi
3003 fi
3004
3005 if test "$gcrypt" != "no"; then
3006     pass="no"
3007     if has_libgcrypt; then
3008         gcrypt_cflags=$(libgcrypt-config --cflags)
3009         gcrypt_libs=$(libgcrypt-config --libs)
3010         # Debian has removed -lgpg-error from libgcrypt-config
3011         # as it "spreads unnecessary dependencies" which in
3012         # turn breaks static builds...
3013         if test "$static" = "yes"
3014         then
3015             gcrypt_libs="$gcrypt_libs -lgpg-error"
3016         fi
3017
3018         # Link test to make sure the given libraries work (e.g for static).
3019         write_c_skeleton
3020         if compile_prog "" "$gcrypt_libs" ; then
3021             pass="yes"
3022         fi
3023     fi
3024     if test "$pass" = "yes"; then
3025         gcrypt="yes"
3026         cat > $TMPC << EOF
3027 #include <gcrypt.h>
3028 int main(void) {
3029   gcry_mac_hd_t handle;
3030   gcry_mac_open(&handle, GCRY_MAC_HMAC_MD5,
3031                 GCRY_MAC_FLAG_SECURE, NULL);
3032   return 0;
3033 }
3034 EOF
3035         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3036             gcrypt_hmac=yes
3037         fi
3038         cat > $TMPC << EOF
3039 #include <gcrypt.h>
3040 int main(void) {
3041   gcry_cipher_hd_t handle;
3042   gcry_cipher_open(&handle, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_XTS, 0);
3043   return 0;
3044 }
3045 EOF
3046         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3047             gcrypt_xts=yes
3048             qemu_private_xts=no
3049         fi
3050     elif test "$gcrypt" = "yes"; then
3051         feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
3052     else
3053         gcrypt="no"
3054     fi
3055 fi
3056
3057
3058 if test "$gcrypt" = "yes" && test "$nettle" = "yes"
3059 then
3060     error_exit "Only one of gcrypt & nettle can be enabled"
3061 fi
3062
3063 ##########################################
3064 # libtasn1 - only for the TLS creds/session test suite
3065
3066 tasn1=yes
3067 tasn1_cflags=""
3068 tasn1_libs=""
3069 if $pkg_config --exists "libtasn1"; then
3070     tasn1_cflags=$($pkg_config --cflags libtasn1)
3071     tasn1_libs=$($pkg_config --libs libtasn1)
3072 else
3073     tasn1=no
3074 fi
3075
3076
3077 ##########################################
3078 # PAM probe
3079
3080 if test "$auth_pam" != "no"; then
3081     cat > $TMPC <<EOF
3082 #include <security/pam_appl.h>
3083 #include <stdio.h>
3084 int main(void) {
3085    const char *service_name = "qemu";
3086    const char *user = "frank";
3087    const struct pam_conv pam_conv = { 0 };
3088    pam_handle_t *pamh = NULL;
3089    pam_start(service_name, user, &pam_conv, &pamh);
3090    return 0;
3091 }
3092 EOF
3093     if compile_prog "" "-lpam" ; then
3094         auth_pam=yes
3095     else
3096         if test "$auth_pam" = "yes"; then
3097             feature_not_found "PAM" "Install PAM development package"
3098         else
3099             auth_pam=no
3100         fi
3101     fi
3102 fi
3103
3104 #########################################
3105 # libdrm check
3106 have_drm_h=no
3107 if check_include "libdrm/drm.h" ; then
3108     have_drm_h=yes
3109 fi
3110
3111 #########################################
3112 # sys/signal.h check
3113 have_sys_signal_h=no
3114 if check_include "sys/signal.h" ; then
3115   have_sys_signal_h=yes
3116 fi
3117
3118 ##########################################
3119 # VTE probe
3120
3121 if test "$vte" != "no"; then
3122     vteminversion="0.32.0"
3123     if $pkg_config --exists "vte-2.91"; then
3124       vtepackage="vte-2.91"
3125     else
3126       vtepackage="vte-2.90"
3127     fi
3128     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
3129         vte_cflags=$($pkg_config --cflags $vtepackage)
3130         vte_libs=$($pkg_config --libs $vtepackage)
3131         vteversion=$($pkg_config --modversion $vtepackage)
3132         vte="yes"
3133     elif test "$vte" = "yes"; then
3134         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
3135     else
3136         vte="no"
3137     fi
3138 fi
3139
3140 ##########################################
3141 # RDMA needs OpenFabrics libraries
3142 if test "$rdma" != "no" ; then
3143   cat > $TMPC <<EOF
3144 #include <rdma/rdma_cma.h>
3145 int main(void) { return 0; }
3146 EOF
3147   rdma_libs="-lrdmacm -libverbs -libumad"
3148   if compile_prog "" "$rdma_libs" ; then
3149     rdma="yes"
3150   else
3151     if test "$rdma" = "yes" ; then
3152         error_exit \
3153             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
3154             " Your options:" \
3155             "  (1) Fast: Install infiniband packages (devel) from your distro." \
3156             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
3157             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
3158     fi
3159     rdma="no"
3160   fi
3161 fi
3162
3163 ##########################################
3164 # PVRDMA detection
3165
3166 cat > $TMPC <<EOF &&
3167 #include <sys/mman.h>
3168
3169 int
3170 main(void)
3171 {
3172     char buf = 0;
3173     void *addr = &buf;
3174     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3175
3176     return 0;
3177 }
3178 EOF
3179
3180 if test "$rdma" = "yes" ; then
3181     case "$pvrdma" in
3182     "")
3183         if compile_prog "" ""; then
3184             pvrdma="yes"
3185         else
3186             pvrdma="no"
3187         fi
3188         ;;
3189     "yes")
3190         if ! compile_prog "" ""; then
3191             error_exit "PVRDMA is not supported since mremap is not implemented"
3192         fi
3193         pvrdma="yes"
3194         ;;
3195     "no")
3196         pvrdma="no"
3197         ;;
3198     esac
3199 else
3200     if test "$pvrdma" = "yes" ; then
3201         error_exit "PVRDMA requires rdma suppport"
3202     fi
3203     pvrdma="no"
3204 fi
3205
3206 # Let's see if enhanced reg_mr is supported
3207 if test "$pvrdma" = "yes" ; then
3208
3209 cat > $TMPC <<EOF &&
3210 #include <infiniband/verbs.h>
3211
3212 int
3213 main(void)
3214 {
3215     struct ibv_mr *mr;
3216     struct ibv_pd *pd = NULL;
3217     size_t length = 10;
3218     uint64_t iova = 0;
3219     int access = 0;
3220     void *addr = NULL;
3221
3222     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
3223
3224     ibv_dereg_mr(mr);
3225
3226     return 0;
3227 }
3228 EOF
3229     if ! compile_prog "" "-libverbs"; then
3230         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
3231     fi
3232 fi
3233
3234 ##########################################
3235 # xfsctl() probe, used for file-posix.c
3236 if test "$xfs" != "no" ; then
3237   cat > $TMPC << EOF
3238 #include <stddef.h>  /* NULL */
3239 #include <xfs/xfs.h>
3240 int main(void)
3241 {
3242     xfsctl(NULL, 0, 0, NULL);
3243     return 0;
3244 }
3245 EOF
3246   if compile_prog "" "" ; then
3247     xfs="yes"
3248   else
3249     if test "$xfs" = "yes" ; then
3250       feature_not_found "xfs" "Install xfsprogs/xfslibs devel"
3251     fi
3252     xfs=no
3253   fi
3254 fi
3255
3256 ##########################################
3257 # vde libraries probe
3258 if test "$vde" != "no" ; then
3259   vde_libs="-lvdeplug"
3260   cat > $TMPC << EOF
3261 #include <libvdeplug.h>
3262 int main(void)
3263 {
3264     struct vde_open_args a = {0, 0, 0};
3265     char s[] = "";
3266     vde_open(s, s, &a);
3267     return 0;
3268 }
3269 EOF
3270   if compile_prog "" "$vde_libs" ; then
3271     vde=yes
3272   else
3273     if test "$vde" = "yes" ; then
3274       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3275     fi
3276     vde=no
3277   fi
3278 fi
3279
3280 ##########################################
3281 # netmap support probe
3282 # Apart from looking for netmap headers, we make sure that the host API version
3283 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3284 # a minor/major version number. Minor new features will be marked with values up
3285 # to 15, and if something happens that requires a change to the backend we will
3286 # move above 15, submit the backend fixes and modify this two bounds.
3287 if test "$netmap" != "no" ; then
3288   cat > $TMPC << EOF
3289 #include <inttypes.h>
3290 #include <net/if.h>
3291 #include <net/netmap.h>
3292 #include <net/netmap_user.h>
3293 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3294 #error
3295 #endif
3296 int main(void) { return 0; }
3297 EOF
3298   if compile_prog "" "" ; then
3299     netmap=yes
3300   else
3301     if test "$netmap" = "yes" ; then
3302       feature_not_found "netmap"
3303     fi
3304     netmap=no
3305   fi
3306 fi
3307
3308 ##########################################
3309 # libcap-ng library probe
3310 if test "$cap_ng" != "no" ; then
3311   cap_libs="-lcap-ng"
3312   cat > $TMPC << EOF
3313 #include <cap-ng.h>
3314 int main(void)
3315 {
3316     capng_capability_to_name(CAPNG_EFFECTIVE);
3317     return 0;
3318 }
3319 EOF
3320   if compile_prog "" "$cap_libs" ; then
3321     cap_ng=yes
3322   else
3323     if test "$cap_ng" = "yes" ; then
3324       feature_not_found "cap_ng" "Install libcap-ng devel"
3325     fi
3326     cap_ng=no
3327   fi
3328 fi
3329
3330 ##########################################
3331 # Sound support libraries probe
3332
3333 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3334 for drv in $audio_drv_list; do
3335     case $drv in
3336     alsa | try-alsa)
3337     if $pkg_config alsa --exists; then
3338         alsa_libs=$($pkg_config alsa --libs)
3339         alsa_cflags=$($pkg_config alsa --cflags)
3340         alsa=yes
3341         if test "$drv" = "try-alsa"; then
3342             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3343         fi
3344     else
3345         if test "$drv" = "try-alsa"; then
3346             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3347         else
3348             error_exit "$drv check failed" \
3349                 "Make sure to have the $drv libs and headers installed."
3350         fi
3351     fi
3352     ;;
3353
3354     pa | try-pa)
3355     if $pkg_config libpulse --exists; then
3356         libpulse=yes
3357         pulse_libs=$($pkg_config libpulse --libs)
3358         pulse_cflags=$($pkg_config libpulse --cflags)
3359         if test "$drv" = "try-pa"; then
3360             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3361         fi
3362     else
3363         if test "$drv" = "try-pa"; then
3364             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3365         else
3366             error_exit "$drv check failed" \
3367                 "Make sure to have the $drv libs and headers installed."
3368         fi
3369     fi
3370     ;;
3371
3372     sdl)
3373     if test "$sdl" = "no"; then
3374         error_exit "sdl not found or disabled, can not use sdl audio driver"
3375     fi
3376     ;;
3377
3378     try-sdl)
3379     if test "$sdl" = "no"; then
3380         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3381     else
3382         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3383     fi
3384     ;;
3385
3386     coreaudio)
3387       coreaudio_libs="-framework CoreAudio"
3388     ;;
3389
3390     dsound)
3391       dsound_libs="-lole32 -ldxguid"
3392       audio_win_int="yes"
3393     ;;
3394
3395     oss)
3396       oss_libs="$oss_lib"
3397     ;;
3398
3399     jack | try-jack)
3400     if $pkg_config jack --exists; then
3401         libjack=yes
3402         jack_libs=$($pkg_config jack --libs)
3403         if test "$drv" = "try-jack"; then
3404             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3405         fi
3406     else
3407         if test "$drv" = "try-jack"; then
3408             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3409         else
3410             error_exit "$drv check failed" \
3411                 "Make sure to have the $drv libs and headers installed."
3412         fi
3413     fi
3414     ;;
3415
3416     *)
3417     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3418         error_exit "Unknown driver '$drv' selected" \
3419             "Possible drivers are: $audio_possible_drivers"
3420     }
3421     ;;
3422     esac
3423 done
3424
3425 ##########################################
3426 # BrlAPI probe
3427
3428 if test "$brlapi" != "no" ; then
3429   brlapi_libs="-lbrlapi"
3430   cat > $TMPC << EOF
3431 #include <brlapi.h>
3432 #include <stddef.h>
3433 int main( void ) { return brlapi__openConnection (NULL, NULL, NULL); }
3434 EOF
3435   if compile_prog "" "$brlapi_libs" ; then
3436     brlapi=yes
3437   else
3438     if test "$brlapi" = "yes" ; then
3439       feature_not_found "brlapi" "Install brlapi devel"
3440     fi
3441     brlapi=no
3442   fi
3443 fi
3444
3445 ##########################################
3446 # curl probe
3447 if test "$curl" != "no" ; then
3448   if $pkg_config libcurl --exists; then
3449     curlconfig="$pkg_config libcurl"
3450   else
3451     curlconfig=curl-config
3452   fi
3453   cat > $TMPC << EOF
3454 #include <curl/curl.h>
3455 int main(void) { curl_easy_init(); curl_multi_setopt(0, 0, 0); return 0; }
3456 EOF
3457   curl_cflags=$($curlconfig --cflags 2>/dev/null)
3458   curl_libs=$($curlconfig --libs 2>/dev/null)
3459   if compile_prog "$curl_cflags" "$curl_libs" ; then
3460     curl=yes
3461   else
3462     if test "$curl" = "yes" ; then
3463       feature_not_found "curl" "Install libcurl devel"
3464     fi
3465     curl=no
3466   fi
3467 fi # test "$curl"
3468
3469 ##########################################
3470 # glib support probe
3471
3472 glib_req_ver=2.48
3473 glib_modules=gthread-2.0
3474 if test "$modules" = yes; then
3475     glib_modules="$glib_modules gmodule-export-2.0"
3476 fi
3477 if test "$plugins" = yes; then
3478     glib_modules="$glib_modules gmodule-2.0"
3479 fi
3480
3481 for i in $glib_modules; do
3482     if $pkg_config --atleast-version=$glib_req_ver $i; then
3483         glib_cflags=$($pkg_config --cflags $i)
3484         glib_libs=$($pkg_config --libs $i)
3485     else
3486         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3487     fi
3488 done
3489
3490 # This workaround is required due to a bug in pkg-config file for glib as it
3491 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3492
3493 if test "$static" = yes && test "$mingw32" = yes; then
3494     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
3495 fi
3496
3497 if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3498     gio_cflags=$($pkg_config --cflags gio-2.0)
3499     gio_libs=$($pkg_config --libs gio-2.0)
3500     gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3501     if [ ! -x "$gdbus_codegen" ]; then
3502         gdbus_codegen=
3503     fi
3504     # Check that the libraries actually work -- Ubuntu 18.04 ships
3505     # with pkg-config --static --libs data for gio-2.0 that is missing
3506     # -lblkid and will give a link error.
3507     cat > $TMPC <<EOF
3508 #include <gio/gio.h>
3509 int main(void)
3510 {
3511     g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
3512     return 0;
3513 }
3514 EOF
3515     if compile_prog "$gio_cflags" "$gio_libs" ; then
3516         gio=yes
3517     else
3518         gio=no
3519     fi
3520 else
3521     gio=no
3522 fi
3523
3524 if $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3525     gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3526     gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3527 fi
3528
3529 # Sanity check that the current size_t matches the
3530 # size that glib thinks it should be. This catches
3531 # problems on multi-arch where people try to build
3532 # 32-bit QEMU while pointing at 64-bit glib headers
3533 cat > $TMPC <<EOF
3534 #include <glib.h>
3535 #include <unistd.h>
3536
3537 #define QEMU_BUILD_BUG_ON(x) \
3538   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3539
3540 int main(void) {
3541    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3542    return 0;
3543 }
3544 EOF
3545
3546 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
3547     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3548                "You probably need to set PKG_CONFIG_LIBDIR"\
3549                "to point to the right pkg-config files for your"\
3550                "build target"
3551 fi
3552
3553 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3554 cat > $TMPC << EOF
3555 #include <glib.h>
3556 int main(void) { return 0; }
3557 EOF
3558 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3559     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3560         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3561         CONFIGURE_CFLAGS="-Wno-unknown-attributes $CONFIGURE_CFLAGS"
3562     fi
3563 fi
3564
3565 # Silence clang warnings triggered by glib < 2.57.2
3566 cat > $TMPC << EOF
3567 #include <glib.h>
3568 typedef struct Foo {
3569     int i;
3570 } Foo;
3571 static void foo_free(Foo *f)
3572 {
3573     g_free(f);
3574 }
3575 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3576 int main(void) { return 0; }
3577 EOF
3578 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3579     if cc_has_warning_flag "-Wno-unused-function"; then
3580         glib_cflags="$glib_cflags -Wno-unused-function"
3581         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
3582     fi
3583 fi
3584
3585 ##########################################
3586 # SHA command probe for modules
3587 if test "$modules" = yes; then
3588     shacmd_probe="sha1sum sha1 shasum"
3589     for c in $shacmd_probe; do
3590         if has $c; then
3591             shacmd="$c"
3592             break
3593         fi
3594     done
3595     if test "$shacmd" = ""; then
3596         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3597     fi
3598 fi
3599
3600 ##########################################
3601 # pthread probe
3602 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3603
3604 pthread=no
3605 cat > $TMPC << EOF
3606 #include <pthread.h>
3607 static void *f(void *p) { return NULL; }
3608 int main(void) {
3609   pthread_t thread;
3610   pthread_create(&thread, 0, f, 0);
3611   return 0;
3612 }
3613 EOF
3614 if compile_prog "" "" ; then
3615   pthread=yes
3616 else
3617   for pthread_lib in $PTHREADLIBS_LIST; do
3618     if compile_prog "" "$pthread_lib" ; then
3619       pthread=yes
3620       found=no
3621       for lib_entry in $LIBS; do
3622         if test "$lib_entry" = "$pthread_lib"; then
3623           found=yes
3624           break
3625         fi
3626       done
3627       if test "$found" = "no"; then
3628         LIBS="$pthread_lib $LIBS"
3629       fi
3630       break
3631     fi
3632   done
3633 fi
3634
3635 if test "$mingw32" != yes && test "$pthread" = no; then
3636   error_exit "pthread check failed" \
3637       "Make sure to have the pthread libs and headers installed."
3638 fi
3639
3640 # check for pthread_setname_np with thread id
3641 pthread_setname_np_w_tid=no
3642 cat > $TMPC << EOF
3643 #include <pthread.h>
3644
3645 static void *f(void *p) { return NULL; }
3646 int main(void)
3647 {
3648     pthread_t thread;
3649     pthread_create(&thread, 0, f, 0);
3650     pthread_setname_np(thread, "QEMU");
3651     return 0;
3652 }
3653 EOF
3654 if compile_prog "" "$pthread_lib" ; then
3655   pthread_setname_np_w_tid=yes
3656 fi
3657
3658 # check for pthread_setname_np without thread id
3659 pthread_setname_np_wo_tid=no
3660 cat > $TMPC << EOF
3661 #include <pthread.h>
3662
3663 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
3664 int main(void)
3665 {
3666     pthread_t thread;
3667     pthread_create(&thread, 0, f, 0);
3668     return 0;
3669 }
3670 EOF
3671 if compile_prog "" "$pthread_lib" ; then
3672   pthread_setname_np_wo_tid=yes
3673 fi
3674
3675 ##########################################
3676 # rbd probe
3677 if test "$rbd" != "no" ; then
3678   cat > $TMPC <<EOF
3679 #include <stdio.h>
3680 #include <rbd/librbd.h>
3681 int main(void) {
3682     rados_t cluster;
3683     rados_create(&cluster, NULL);
3684     return 0;
3685 }
3686 EOF
3687   rbd_libs="-lrbd -lrados"
3688   if compile_prog "" "$rbd_libs" ; then
3689     rbd=yes
3690   else
3691     if test "$rbd" = "yes" ; then
3692       feature_not_found "rados block device" "Install librbd/ceph devel"
3693     fi
3694     rbd=no
3695   fi
3696 fi
3697
3698 ##########################################
3699 # libssh probe
3700 if test "$libssh" != "no" ; then
3701   if $pkg_config --exists libssh; then
3702     libssh_cflags=$($pkg_config libssh --cflags)
3703     libssh_libs=$($pkg_config libssh --libs)
3704     libssh=yes
3705   else
3706     if test "$libssh" = "yes" ; then
3707       error_exit "libssh required for --enable-libssh"
3708     fi
3709     libssh=no
3710   fi
3711 fi
3712
3713 ##########################################
3714 # Check for libssh 0.8
3715 # This is done like this instead of using the LIBSSH_VERSION_* and
3716 # SSH_VERSION_* macros because some distributions in the past shipped
3717 # snapshots of the future 0.8 from Git, and those snapshots did not
3718 # have updated version numbers (still referring to 0.7.0).
3719
3720 if test "$libssh" = "yes"; then
3721   cat > $TMPC <<EOF
3722 #include <libssh/libssh.h>
3723 int main(void) { return ssh_get_server_publickey(NULL, NULL); }
3724 EOF
3725   if compile_prog "$libssh_cflags" "$libssh_libs"; then
3726     libssh_cflags="-DHAVE_LIBSSH_0_8 $libssh_cflags"
3727   fi
3728 fi
3729
3730 ##########################################
3731 # linux-aio probe
3732
3733 if test "$linux_aio" != "no" ; then
3734   cat > $TMPC <<EOF
3735 #include <libaio.h>
3736 #include <sys/eventfd.h>
3737 #include <stddef.h>
3738 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
3739 EOF
3740   if compile_prog "" "-laio" ; then
3741     linux_aio=yes
3742   else
3743     if test "$linux_aio" = "yes" ; then
3744       feature_not_found "linux AIO" "Install libaio devel"
3745     fi
3746     linux_aio=no
3747   fi
3748 fi
3749 ##########################################
3750 # linux-io-uring probe
3751
3752 if test "$linux_io_uring" != "no" ; then
3753   if $pkg_config liburing; then
3754     linux_io_uring_cflags=$($pkg_config --cflags liburing)
3755     linux_io_uring_libs=$($pkg_config --libs liburing)
3756     linux_io_uring=yes
3757   else
3758     if test "$linux_io_uring" = "yes" ; then
3759       feature_not_found "linux io_uring" "Install liburing devel"
3760     fi
3761     linux_io_uring=no
3762   fi
3763 fi
3764
3765 ##########################################
3766 # TPM emulation is only on POSIX
3767
3768 if test "$tpm" = ""; then
3769   if test "$mingw32" = "yes"; then
3770     tpm=no
3771   else
3772     tpm=yes
3773   fi
3774 elif test "$tpm" = "yes"; then
3775   if test "$mingw32" = "yes" ; then
3776     error_exit "TPM emulation only available on POSIX systems"
3777   fi
3778 fi
3779
3780 ##########################################
3781 # attr probe
3782
3783 libattr_libs=
3784 if test "$attr" != "no" ; then
3785   cat > $TMPC <<EOF
3786 #include <stdio.h>
3787 #include <sys/types.h>
3788 #ifdef CONFIG_LIBATTR
3789 #include <attr/xattr.h>
3790 #else
3791 #include <sys/xattr.h>
3792 #endif
3793 int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }
3794 EOF
3795   if compile_prog "" "" ; then
3796     attr=yes
3797   # Older distros have <attr/xattr.h>, and need -lattr:
3798   elif compile_prog "-DCONFIG_LIBATTR" "-lattr" ; then
3799     attr=yes
3800     libattr_libs="-lattr"
3801     libattr=yes
3802   else
3803     if test "$attr" = "yes" ; then
3804       feature_not_found "ATTR" "Install libc6 or libattr devel"
3805     fi
3806     attr=no
3807   fi
3808 fi
3809
3810 ##########################################
3811 # iovec probe
3812 cat > $TMPC <<EOF
3813 #include <sys/types.h>
3814 #include <sys/uio.h>
3815 #include <unistd.h>
3816 int main(void) { return sizeof(struct iovec); }
3817 EOF
3818 iovec=no
3819 if compile_prog "" "" ; then
3820   iovec=yes
3821 fi
3822
3823 ##########################################
3824 # preadv probe
3825 cat > $TMPC <<EOF
3826 #include <sys/types.h>
3827 #include <sys/uio.h>
3828 #include <unistd.h>
3829 int main(void) { return preadv(0, 0, 0, 0); }
3830 EOF
3831 preadv=no
3832 if compile_prog "" "" ; then
3833   preadv=yes
3834 fi
3835
3836 ##########################################
3837 # fdt probe
3838
3839 case "$fdt" in
3840   auto | enabled | internal)
3841     # Simpler to always update submodule, even if not needed.
3842     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
3843       git_submodules="${git_submodules} dtc"
3844     fi
3845     ;;
3846 esac
3847
3848 ##########################################
3849 # opengl probe (for sdl2, gtk, milkymist-tmu2)
3850
3851 gbm="no"
3852 if $pkg_config gbm; then
3853     gbm_cflags="$($pkg_config --cflags gbm)"
3854     gbm_libs="$($pkg_config --libs gbm)"
3855     gbm="yes"
3856 fi
3857
3858 if test "$opengl" != "no" ; then
3859   opengl_pkgs="epoxy gbm"
3860   if $pkg_config $opengl_pkgs; then
3861     opengl_cflags="$($pkg_config --cflags $opengl_pkgs)"
3862     opengl_libs="$($pkg_config --libs $opengl_pkgs)"
3863     opengl=yes
3864     if test "$gtk" = "yes" && $pkg_config --exists "$gtkpackage >= 3.16"; then
3865         gtk_gl="yes"
3866     fi
3867   else
3868     if test "$opengl" = "yes" ; then
3869       feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
3870     fi
3871     opengl_cflags=""
3872     opengl_libs=""
3873     opengl=no
3874   fi
3875 fi
3876
3877 if test "$opengl" = "yes"; then
3878   cat > $TMPC << EOF
3879 #include <epoxy/egl.h>
3880 #ifndef EGL_MESA_image_dma_buf_export
3881 # error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
3882 #endif
3883 int main(void) { return 0; }
3884 EOF
3885   if compile_prog "" "" ; then
3886     opengl_dmabuf=yes
3887   fi
3888 fi
3889
3890 if test "$opengl" = "yes" && test "$have_x11" = "yes"; then
3891   for target in $target_list; do
3892     case $target in
3893       lm32-softmmu) # milkymist-tmu2 requires X11 and OpenGL
3894         need_x11=yes
3895       ;;
3896     esac
3897   done
3898 fi
3899
3900 ##########################################
3901 # libxml2 probe
3902 if test "$libxml2" != "no" ; then
3903     if $pkg_config --exists libxml-2.0; then
3904         libxml2="yes"
3905         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
3906         libxml2_libs=$($pkg_config --libs libxml-2.0)
3907     else
3908         if test "$libxml2" = "yes"; then
3909             feature_not_found "libxml2" "Install libxml2 devel"
3910         fi
3911         libxml2="no"
3912     fi
3913 fi
3914
3915 ##########################################
3916 # glusterfs probe
3917 if test "$glusterfs" != "no" ; then
3918   if $pkg_config --atleast-version=3 glusterfs-api; then
3919     glusterfs="yes"
3920     glusterfs_cflags=$($pkg_config --cflags glusterfs-api)
3921     glusterfs_libs=$($pkg_config --libs glusterfs-api)
3922     if $pkg_config --atleast-version=4 glusterfs-api; then
3923       glusterfs_xlator_opt="yes"
3924     fi
3925     if $pkg_config --atleast-version=5 glusterfs-api; then
3926       glusterfs_discard="yes"
3927     fi
3928     if $pkg_config --atleast-version=6 glusterfs-api; then
3929       glusterfs_fallocate="yes"
3930       glusterfs_zerofill="yes"
3931     fi
3932     cat > $TMPC << EOF
3933 #include <glusterfs/api/glfs.h>
3934
3935 int
3936 main(void)
3937 {
3938         /* new glfs_ftruncate() passes two additional args */
3939         return glfs_ftruncate(NULL, 0, NULL, NULL);
3940 }
3941 EOF
3942     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
3943       glusterfs_ftruncate_has_stat="yes"
3944     fi
3945     cat > $TMPC << EOF
3946 #include <glusterfs/api/glfs.h>
3947
3948 /* new glfs_io_cbk() passes two additional glfs_stat structs */
3949 static void
3950 glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
3951 {}
3952
3953 int
3954 main(void)
3955 {
3956         glfs_io_cbk iocb = &glusterfs_iocb;
3957         iocb(NULL, 0 , NULL, NULL, NULL);
3958         return 0;
3959 }
3960 EOF
3961     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
3962       glusterfs_iocb_has_stat="yes"
3963     fi
3964   else
3965     if test "$glusterfs" = "yes" ; then
3966       feature_not_found "GlusterFS backend support" \
3967           "Install glusterfs-api devel >= 3"
3968     fi
3969     glusterfs="no"
3970   fi
3971 fi
3972
3973 # Check for inotify functions when we are building linux-user
3974 # emulator.  This is done because older glibc versions don't
3975 # have syscall stubs for these implemented.  In that case we
3976 # don't provide them even if kernel supports them.
3977 #
3978 inotify=no
3979 cat > $TMPC << EOF
3980 #include <sys/inotify.h>
3981
3982 int
3983 main(void)
3984 {
3985         /* try to start inotify */
3986         return inotify_init();
3987 }
3988 EOF
3989 if compile_prog "" "" ; then
3990   inotify=yes
3991 fi
3992
3993 inotify1=no
3994 cat > $TMPC << EOF
3995 #include <sys/inotify.h>
3996
3997 int
3998 main(void)
3999 {
4000     /* try to start inotify */
4001     return inotify_init1(0);
4002 }
4003 EOF
4004 if compile_prog "" "" ; then
4005   inotify1=yes
4006 fi
4007
4008 # check if pipe2 is there
4009 pipe2=no
4010 cat > $TMPC << EOF
4011 #include <unistd.h>
4012 #include <fcntl.h>
4013
4014 int main(void)
4015 {
4016     int pipefd[2];
4017     return pipe2(pipefd, O_CLOEXEC);
4018 }
4019 EOF
4020 if compile_prog "" "" ; then
4021   pipe2=yes
4022 fi
4023
4024 # check if accept4 is there
4025 accept4=no
4026 cat > $TMPC << EOF
4027 #include <sys/socket.h>
4028 #include <stddef.h>
4029
4030 int main(void)
4031 {
4032     accept4(0, NULL, NULL, SOCK_CLOEXEC);
4033     return 0;
4034 }
4035 EOF
4036 if compile_prog "" "" ; then
4037   accept4=yes
4038 fi
4039
4040 # check if tee/splice is there. vmsplice was added same time.
4041 splice=no
4042 cat > $TMPC << EOF
4043 #include <unistd.h>
4044 #include <fcntl.h>
4045 #include <limits.h>
4046
4047 int main(void)
4048 {
4049     int len, fd = 0;
4050     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
4051     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
4052     return 0;
4053 }
4054 EOF
4055 if compile_prog "" "" ; then
4056   splice=yes
4057 fi
4058
4059 ##########################################
4060 # libnuma probe
4061
4062 if test "$numa" != "no" ; then
4063   cat > $TMPC << EOF
4064 #include <numa.h>
4065 int main(void) { return numa_available(); }
4066 EOF
4067
4068   if compile_prog "" "-lnuma" ; then
4069     numa=yes
4070     numa_libs="-lnuma"
4071   else
4072     if test "$numa" = "yes" ; then
4073       feature_not_found "numa" "install numactl devel"
4074     fi
4075     numa=no
4076   fi
4077 fi
4078
4079 malloc=system
4080 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
4081     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
4082     exit 1
4083 elif test "$tcmalloc" = "yes" ; then
4084     malloc=tcmalloc
4085 elif test "$jemalloc" = "yes" ; then
4086     malloc=jemalloc
4087 fi
4088
4089 ##########################################
4090 # signalfd probe
4091 signalfd="no"
4092 cat > $TMPC << EOF
4093 #include <unistd.h>
4094 #include <sys/syscall.h>
4095 #include <signal.h>
4096 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
4097 EOF
4098
4099 if compile_prog "" "" ; then
4100   signalfd=yes
4101 fi
4102
4103 # check if optreset global is declared by <getopt.h>
4104 optreset="no"
4105 cat > $TMPC << EOF
4106 #include <getopt.h>
4107 int main(void) { return optreset; }
4108 EOF
4109
4110 if compile_prog "" "" ; then
4111   optreset=yes
4112 fi
4113
4114 # check if eventfd is supported
4115 eventfd=no
4116 cat > $TMPC << EOF
4117 #include <sys/eventfd.h>
4118
4119 int main(void)
4120 {
4121     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
4122 }
4123 EOF
4124 if compile_prog "" "" ; then
4125   eventfd=yes
4126 fi
4127
4128 # check if memfd is supported
4129 memfd=no
4130 cat > $TMPC << EOF
4131 #include <sys/mman.h>
4132
4133 int main(void)
4134 {
4135     return memfd_create("foo", MFD_ALLOW_SEALING);
4136 }
4137 EOF
4138 if compile_prog "" "" ; then
4139   memfd=yes
4140 fi
4141
4142 # check for usbfs
4143 have_usbfs=no
4144 if test "$linux_user" = "yes"; then
4145   cat > $TMPC << EOF
4146 #include <linux/usbdevice_fs.h>
4147
4148 #ifndef USBDEVFS_GET_CAPABILITIES
4149 #error "USBDEVFS_GET_CAPABILITIES undefined"
4150 #endif
4151
4152 #ifndef USBDEVFS_DISCONNECT_CLAIM
4153 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
4154 #endif
4155
4156 int main(void)
4157 {
4158     return 0;
4159 }
4160 EOF
4161   if compile_prog "" ""; then
4162     have_usbfs=yes
4163   fi
4164 fi
4165
4166 # check for fallocate
4167 fallocate=no
4168 cat > $TMPC << EOF
4169 #include <fcntl.h>
4170
4171 int main(void)
4172 {
4173     fallocate(0, 0, 0, 0);
4174     return 0;
4175 }
4176 EOF
4177 if compile_prog "" "" ; then
4178   fallocate=yes
4179 fi
4180
4181 # check for fallocate hole punching
4182 fallocate_punch_hole=no
4183 cat > $TMPC << EOF
4184 #include <fcntl.h>
4185 #include <linux/falloc.h>
4186
4187 int main(void)
4188 {
4189     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
4190     return 0;
4191 }
4192 EOF
4193 if compile_prog "" "" ; then
4194   fallocate_punch_hole=yes
4195 fi
4196
4197 # check that fallocate supports range zeroing inside the file
4198 fallocate_zero_range=no
4199 cat > $TMPC << EOF
4200 #include <fcntl.h>
4201 #include <linux/falloc.h>
4202
4203 int main(void)
4204 {
4205     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
4206     return 0;
4207 }
4208 EOF
4209 if compile_prog "" "" ; then
4210   fallocate_zero_range=yes
4211 fi
4212
4213 # check for posix_fallocate
4214 posix_fallocate=no
4215 cat > $TMPC << EOF
4216 #include <fcntl.h>
4217
4218 int main(void)
4219 {
4220     posix_fallocate(0, 0, 0);
4221     return 0;
4222 }
4223 EOF
4224 if compile_prog "" "" ; then
4225     posix_fallocate=yes
4226 fi
4227
4228 # check for sync_file_range
4229 sync_file_range=no
4230 cat > $TMPC << EOF
4231 #include <fcntl.h>
4232
4233 int main(void)
4234 {
4235     sync_file_range(0, 0, 0, 0);
4236     return 0;
4237 }
4238 EOF
4239 if compile_prog "" "" ; then
4240   sync_file_range=yes
4241 fi
4242
4243 # check for linux/fiemap.h and FS_IOC_FIEMAP
4244 fiemap=no
4245 cat > $TMPC << EOF
4246 #include <sys/ioctl.h>
4247 #include <linux/fs.h>
4248 #include <linux/fiemap.h>
4249
4250 int main(void)
4251 {
4252     ioctl(0, FS_IOC_FIEMAP, 0);
4253     return 0;
4254 }
4255 EOF
4256 if compile_prog "" "" ; then
4257   fiemap=yes
4258 fi
4259
4260 # check for dup3
4261 dup3=no
4262 cat > $TMPC << EOF
4263 #include <unistd.h>
4264
4265 int main(void)
4266 {
4267     dup3(0, 0, 0);
4268     return 0;
4269 }
4270 EOF
4271 if compile_prog "" "" ; then
4272   dup3=yes
4273 fi
4274
4275 # check for ppoll support
4276 ppoll=no
4277 cat > $TMPC << EOF
4278 #include <poll.h>
4279
4280 int main(void)
4281 {
4282     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
4283     ppoll(&pfd, 1, 0, 0);
4284     return 0;
4285 }
4286 EOF
4287 if compile_prog "" "" ; then
4288   ppoll=yes
4289 fi
4290
4291 # check for prctl(PR_SET_TIMERSLACK , ... ) support
4292 prctl_pr_set_timerslack=no
4293 cat > $TMPC << EOF
4294 #include <sys/prctl.h>
4295
4296 int main(void)
4297 {
4298     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
4299     return 0;
4300 }
4301 EOF
4302 if compile_prog "" "" ; then
4303   prctl_pr_set_timerslack=yes
4304 fi
4305
4306 # check for epoll support
4307 epoll=no
4308 cat > $TMPC << EOF
4309 #include <sys/epoll.h>
4310
4311 int main(void)
4312 {
4313     epoll_create(0);
4314     return 0;
4315 }
4316 EOF
4317 if compile_prog "" "" ; then
4318   epoll=yes
4319 fi
4320
4321 # epoll_create1 is a later addition
4322 # so we must check separately for its presence
4323 epoll_create1=no
4324 cat > $TMPC << EOF
4325 #include <sys/epoll.h>
4326
4327 int main(void)
4328 {
4329     /* Note that we use epoll_create1 as a value, not as
4330      * a function being called. This is necessary so that on
4331      * old SPARC glibc versions where the function was present in
4332      * the library but not declared in the header file we will
4333      * fail the configure check. (Otherwise we will get a compiler
4334      * warning but not an error, and will proceed to fail the
4335      * qemu compile where we compile with -Werror.)
4336      */
4337     return (int)(uintptr_t)&epoll_create1;
4338 }
4339 EOF
4340 if compile_prog "" "" ; then
4341   epoll_create1=yes
4342 fi
4343
4344 # check for sendfile support
4345 sendfile=no
4346 cat > $TMPC << EOF
4347 #include <sys/sendfile.h>
4348
4349 int main(void)
4350 {
4351     return sendfile(0, 0, 0, 0);
4352 }
4353 EOF
4354 if compile_prog "" "" ; then
4355   sendfile=yes
4356 fi
4357
4358 # check for timerfd support (glibc 2.8 and newer)
4359 timerfd=no
4360 cat > $TMPC << EOF
4361 #include <sys/timerfd.h>
4362
4363 int main(void)
4364 {
4365     return(timerfd_create(CLOCK_REALTIME, 0));
4366 }
4367 EOF
4368 if compile_prog "" "" ; then
4369   timerfd=yes
4370 fi
4371
4372 # check for setns and unshare support
4373 setns=no
4374 cat > $TMPC << EOF
4375 #include <sched.h>
4376
4377 int main(void)
4378 {
4379     int ret;
4380     ret = setns(0, 0);
4381     ret = unshare(0);
4382     return ret;
4383 }
4384 EOF
4385 if compile_prog "" "" ; then
4386   setns=yes
4387 fi
4388
4389 # clock_adjtime probe
4390 clock_adjtime=no
4391 cat > $TMPC <<EOF
4392 #include <time.h>
4393
4394 int main(void)
4395 {
4396     return clock_adjtime(0, 0);
4397 }
4398 EOF
4399 clock_adjtime=no
4400 if compile_prog "" "" ; then
4401   clock_adjtime=yes
4402 fi
4403
4404 # syncfs probe
4405 syncfs=no
4406 cat > $TMPC <<EOF
4407 #include <unistd.h>
4408
4409 int main(void)
4410 {
4411     return syncfs(0);
4412 }
4413 EOF
4414 syncfs=no
4415 if compile_prog "" "" ; then
4416   syncfs=yes
4417 fi
4418
4419 # check for kcov support (kernel must be 4.4+, compiled with certain options)
4420 kcov=no
4421 if check_include sys/kcov.h ; then
4422     kcov=yes
4423 fi
4424
4425 # check for btrfs filesystem support (kernel must be 3.9+)
4426 btrfs=no
4427 if check_include linux/btrfs.h ; then
4428     btrfs=yes
4429 fi
4430
4431 # Search for bswap_32 function
4432 byteswap_h=no
4433 cat > $TMPC << EOF
4434 #include <byteswap.h>
4435 int main(void) { return bswap_32(0); }
4436 EOF
4437 if compile_prog "" "" ; then
4438   byteswap_h=yes
4439 fi
4440
4441 # Search for bswap32 function
4442 bswap_h=no
4443 cat > $TMPC << EOF
4444 #include <sys/endian.h>
4445 #include <sys/types.h>
4446 #include <machine/bswap.h>
4447 int main(void) { return bswap32(0); }
4448 EOF
4449 if compile_prog "" "" ; then
4450   bswap_h=yes
4451 fi
4452
4453 ##########################################
4454 # Do we have libiscsi >= 1.9.0
4455 if test "$libiscsi" != "no" ; then
4456   if $pkg_config --atleast-version=1.9.0 libiscsi; then
4457     libiscsi="yes"
4458     libiscsi_cflags=$($pkg_config --cflags libiscsi)
4459     libiscsi_libs=$($pkg_config --libs libiscsi)
4460   else
4461     if test "$libiscsi" = "yes" ; then
4462       feature_not_found "libiscsi" "Install libiscsi >= 1.9.0"
4463     fi
4464     libiscsi="no"
4465   fi
4466 fi
4467
4468 ##########################################
4469 # Do we need librt
4470 # uClibc provides 2 versions of clock_gettime(), one with realtime
4471 # support and one without. This means that the clock_gettime() don't
4472 # need -lrt. We still need it for timer_create() so we check for this
4473 # function in addition.
4474 cat > $TMPC <<EOF
4475 #include <signal.h>
4476 #include <time.h>
4477 int main(void) {
4478   timer_create(CLOCK_REALTIME, NULL, NULL);
4479   return clock_gettime(CLOCK_REALTIME, NULL);
4480 }
4481 EOF
4482
4483 if compile_prog "" "" ; then
4484   :
4485 # we need pthread for static linking. use previous pthread test result
4486 elif compile_prog "" "$pthread_lib -lrt" ; then
4487   LIBS="$LIBS -lrt"
4488 fi
4489
4490 # Check whether we have openpty() in either libc or libutil
4491 cat > $TMPC << EOF
4492 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
4493 int main(void) { return openpty(0, 0, 0, 0, 0); }
4494 EOF
4495
4496 have_openpty="no"
4497 if compile_prog "" "" ; then
4498   have_openpty="yes"
4499 else
4500   if compile_prog "" "-lutil" ; then
4501     have_openpty="yes"
4502   fi
4503 fi
4504
4505 ##########################################
4506 # spice probe
4507 if test "$spice" != "no" ; then
4508   cat > $TMPC << EOF
4509 #include <spice.h>
4510 int main(void) { spice_server_new(); return 0; }
4511 EOF
4512   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
4513   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
4514   if $pkg_config --atleast-version=0.12.5 spice-server && \
4515      $pkg_config --atleast-version=0.12.3 spice-protocol && \
4516      compile_prog "$spice_cflags" "$spice_libs" ; then
4517     spice="yes"
4518   else
4519     if test "$spice" = "yes" ; then
4520       feature_not_found "spice" \
4521           "Install spice-server(>=0.12.5) and spice-protocol(>=0.12.3) devel"
4522     fi
4523     spice="no"
4524   fi
4525 fi
4526
4527 # check for smartcard support
4528 if test "$smartcard" != "no"; then
4529     if $pkg_config --atleast-version=2.5.1 libcacard; then
4530         libcacard_cflags=$($pkg_config --cflags libcacard)
4531         libcacard_libs=$($pkg_config --libs libcacard)
4532         smartcard="yes"
4533     else
4534         if test "$smartcard" = "yes"; then
4535             feature_not_found "smartcard" "Install libcacard devel"
4536         fi
4537         smartcard="no"
4538     fi
4539 fi
4540
4541 # check for libusb
4542 if test "$libusb" != "no" ; then
4543     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
4544         libusb="yes"
4545         libusb_cflags=$($pkg_config --cflags libusb-1.0)
4546         libusb_libs=$($pkg_config --libs libusb-1.0)
4547     else
4548         if test "$libusb" = "yes"; then
4549             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
4550         fi
4551         libusb="no"
4552     fi
4553 fi
4554
4555 # check for usbredirparser for usb network redirection support
4556 if test "$usb_redir" != "no" ; then
4557     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
4558         usb_redir="yes"
4559         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
4560         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
4561     else
4562         if test "$usb_redir" = "yes"; then
4563             feature_not_found "usb-redir" "Install usbredir devel"
4564         fi
4565         usb_redir="no"
4566     fi
4567 fi
4568
4569 ##########################################
4570 # check if we have VSS SDK headers for win
4571
4572 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4573         test "$vss_win32_sdk" != "no" ; then
4574   case "$vss_win32_sdk" in
4575     "")   vss_win32_include="-isystem $source_path" ;;
4576     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
4577           # handle path with spaces. So we symlink the headers into ".sdk/vss".
4578           vss_win32_include="-isystem $source_path/.sdk/vss"
4579           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
4580           ;;
4581     *)    vss_win32_include="-isystem $vss_win32_sdk"
4582   esac
4583   cat > $TMPC << EOF
4584 #define __MIDL_user_allocate_free_DEFINED__
4585 #include <inc/win2003/vss.h>
4586 int main(void) { return VSS_CTX_BACKUP; }
4587 EOF
4588   if compile_prog "$vss_win32_include" "" ; then
4589     guest_agent_with_vss="yes"
4590     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
4591     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
4592     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
4593   else
4594     if test "$vss_win32_sdk" != "" ; then
4595       echo "ERROR: Please download and install Microsoft VSS SDK:"
4596       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
4597       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
4598       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
4599       echo "ERROR: The headers are extracted in the directory \`inc'."
4600       feature_not_found "VSS support"
4601     fi
4602     guest_agent_with_vss="no"
4603   fi
4604 fi
4605
4606 ##########################################
4607 # lookup Windows platform SDK (if not specified)
4608 # The SDK is needed only to build .tlb (type library) file of guest agent
4609 # VSS provider from the source. It is usually unnecessary because the
4610 # pre-compiled .tlb file is included.
4611
4612 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4613         test "$guest_agent_with_vss" = "yes" ; then
4614   if test -z "$win_sdk"; then
4615     programfiles="$PROGRAMFILES"
4616     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
4617     if test -n "$programfiles"; then
4618       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
4619     else
4620       feature_not_found "Windows SDK"
4621     fi
4622   elif test "$win_sdk" = "no"; then
4623     win_sdk=""
4624   fi
4625 fi
4626
4627 ##########################################
4628 # check if mingw environment provides a recent ntddscsi.h
4629 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
4630   cat > $TMPC << EOF
4631 #include <windows.h>
4632 #include <ntddscsi.h>
4633 int main(void) {
4634 #if !defined(IOCTL_SCSI_GET_ADDRESS)
4635 #error Missing required ioctl definitions
4636 #endif
4637   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
4638   return addr.Lun;
4639 }
4640 EOF
4641   if compile_prog "" "" ; then
4642     guest_agent_ntddscsi=yes
4643     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
4644   fi
4645 fi
4646
4647 ##########################################
4648 # virgl renderer probe
4649
4650 if test "$virglrenderer" != "no" ; then
4651   cat > $TMPC << EOF
4652 #include <virglrenderer.h>
4653 int main(void) { virgl_renderer_poll(); return 0; }
4654 EOF
4655   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
4656   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
4657   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
4658   if $pkg_config virglrenderer >/dev/null 2>&1 && \
4659      compile_prog "$virgl_cflags" "$virgl_libs" ; then
4660     virglrenderer="yes"
4661   else
4662     if test "$virglrenderer" = "yes" ; then
4663       feature_not_found "virglrenderer"
4664     fi
4665     virglrenderer="no"
4666   fi
4667 fi
4668
4669 ##########################################
4670 # capstone
4671
4672 case "$capstone" in
4673   auto | enabled | internal)
4674     # Simpler to always update submodule, even if not needed.
4675     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
4676       git_submodules="${git_submodules} capstone"
4677     fi
4678     ;;
4679 esac
4680
4681 ##########################################
4682 # check if we have fdatasync
4683
4684 fdatasync=no
4685 cat > $TMPC << EOF
4686 #include <unistd.h>
4687 int main(void) {
4688 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
4689 return fdatasync(0);
4690 #else
4691 #error Not supported
4692 #endif
4693 }
4694 EOF
4695 if compile_prog "" "" ; then
4696     fdatasync=yes
4697 fi
4698
4699 ##########################################
4700 # check if we have madvise
4701
4702 madvise=no
4703 cat > $TMPC << EOF
4704 #include <sys/types.h>
4705 #include <sys/mman.h>
4706 #include <stddef.h>
4707 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
4708 EOF
4709 if compile_prog "" "" ; then
4710     madvise=yes
4711 fi
4712
4713 ##########################################
4714 # check if we have posix_madvise
4715
4716 posix_madvise=no
4717 cat > $TMPC << EOF
4718 #include <sys/mman.h>
4719 #include <stddef.h>
4720 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
4721 EOF
4722 if compile_prog "" "" ; then
4723     posix_madvise=yes
4724 fi
4725
4726 ##########################################
4727 # check if we have posix_memalign()
4728
4729 posix_memalign=no
4730 cat > $TMPC << EOF
4731 #include <stdlib.h>
4732 int main(void) {
4733     void *p;
4734     return posix_memalign(&p, 8, 8);
4735 }
4736 EOF
4737 if compile_prog "" "" ; then
4738     posix_memalign=yes
4739 fi
4740
4741 ##########################################
4742 # check if we have posix_syslog
4743
4744 posix_syslog=no
4745 cat > $TMPC << EOF
4746 #include <syslog.h>
4747 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
4748 EOF
4749 if compile_prog "" "" ; then
4750     posix_syslog=yes
4751 fi
4752
4753 ##########################################
4754 # check if we have sem_timedwait
4755
4756 sem_timedwait=no
4757 cat > $TMPC << EOF
4758 #include <semaphore.h>
4759 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
4760 EOF
4761 if compile_prog "" "" ; then
4762     sem_timedwait=yes
4763 fi
4764
4765 ##########################################
4766 # check if we have strchrnul
4767
4768 strchrnul=no
4769 cat > $TMPC << EOF
4770 #include <string.h>
4771 int main(void);
4772 // Use a haystack that the compiler shouldn't be able to constant fold
4773 char *haystack = (char*)&main;
4774 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
4775 EOF
4776 if compile_prog "" "" ; then
4777     strchrnul=yes
4778 fi
4779
4780 #########################################
4781 # check if we have st_atim
4782
4783 st_atim=no
4784 cat > $TMPC << EOF
4785 #include <sys/stat.h>
4786 #include <stddef.h>
4787 int main(void) { return offsetof(struct stat, st_atim); }
4788 EOF
4789 if compile_prog "" "" ; then
4790     st_atim=yes
4791 fi
4792
4793 ##########################################
4794 # check if trace backend exists
4795
4796 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
4797 if test "$?" -ne 0 ; then
4798   error_exit "invalid trace backends" \
4799       "Please choose supported trace backends."
4800 fi
4801
4802 ##########################################
4803 # For 'ust' backend, test if ust headers are present
4804 if have_backend "ust"; then
4805   cat > $TMPC << EOF
4806 #include <lttng/tracepoint.h>
4807 int main(void) { return 0; }
4808 EOF
4809   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
4810     if $pkg_config lttng-ust --exists; then
4811       lttng_ust_libs=$($pkg_config --libs lttng-ust)
4812     else
4813       lttng_ust_libs="-llttng-ust -ldl"
4814     fi
4815     if $pkg_config liburcu-bp --exists; then
4816       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
4817     else
4818       urcu_bp_libs="-lurcu-bp"
4819     fi
4820   else
4821     error_exit "Trace backend 'ust' missing lttng-ust header files"
4822   fi
4823 fi
4824
4825 ##########################################
4826 # For 'dtrace' backend, test if 'dtrace' command is present
4827 if have_backend "dtrace"; then
4828   if ! has 'dtrace' ; then
4829     error_exit "dtrace command is not found in PATH $PATH"
4830   fi
4831   trace_backend_stap="no"
4832   if has 'stap' ; then
4833     trace_backend_stap="yes"
4834
4835     # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
4836     # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
4837     # instead. QEMU --enable-modules depends on this because the SystemTap
4838     # semaphores are linked into the main binary and not the module's shared
4839     # object.
4840     QEMU_CFLAGS="$QEMU_CFLAGS -DSTAP_SDT_V2"
4841   fi
4842 fi
4843
4844 ##########################################
4845 # check and set a backend for coroutine
4846
4847 # We prefer ucontext, but it's not always possible. The fallback
4848 # is sigcontext. On Windows the only valid backend is the Windows
4849 # specific one.
4850
4851 ucontext_works=no
4852 if test "$darwin" != "yes"; then
4853   cat > $TMPC << EOF
4854 #include <ucontext.h>
4855 #ifdef __stub_makecontext
4856 #error Ignoring glibc stub makecontext which will always fail
4857 #endif
4858 int main(void) { makecontext(0, 0, 0); return 0; }
4859 EOF
4860   if compile_prog "" "" ; then
4861     ucontext_works=yes
4862   fi
4863 fi
4864
4865 if test "$coroutine" = ""; then
4866   if test "$mingw32" = "yes"; then
4867     coroutine=win32
4868   elif test "$ucontext_works" = "yes"; then
4869     coroutine=ucontext
4870   else
4871     coroutine=sigaltstack
4872   fi
4873 else
4874   case $coroutine in
4875   windows)
4876     if test "$mingw32" != "yes"; then
4877       error_exit "'windows' coroutine backend only valid for Windows"
4878     fi
4879     # Unfortunately the user visible backend name doesn't match the
4880     # coroutine-*.c filename for this case, so we have to adjust it here.
4881     coroutine=win32
4882     ;;
4883   ucontext)
4884     if test "$ucontext_works" != "yes"; then
4885       feature_not_found "ucontext"
4886     fi
4887     ;;
4888   sigaltstack)
4889     if test "$mingw32" = "yes"; then
4890       error_exit "only the 'windows' coroutine backend is valid for Windows"
4891     fi
4892     ;;
4893   *)
4894     error_exit "unknown coroutine backend $coroutine"
4895     ;;
4896   esac
4897 fi
4898
4899 if test "$coroutine_pool" = ""; then
4900   coroutine_pool=yes
4901 fi
4902
4903 if test "$debug_stack_usage" = "yes"; then
4904   if test "$coroutine_pool" = "yes"; then
4905     echo "WARN: disabling coroutine pool for stack usage debugging"
4906     coroutine_pool=no
4907   fi
4908 fi
4909
4910 ##################################################
4911 # SafeStack
4912
4913
4914 if test "$safe_stack" = "yes"; then
4915 cat > $TMPC << EOF
4916 int main(int argc, char *argv[])
4917 {
4918 #if ! __has_feature(safe_stack)
4919 #error SafeStack Disabled
4920 #endif
4921     return 0;
4922 }
4923 EOF
4924   flag="-fsanitize=safe-stack"
4925   # Check that safe-stack is supported and enabled.
4926   if compile_prog "-Werror $flag" "$flag"; then
4927     # Flag needed both at compilation and at linking
4928     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4929     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4930   else
4931     error_exit "SafeStack not supported by your compiler"
4932   fi
4933   if test "$coroutine" != "ucontext"; then
4934     error_exit "SafeStack is only supported by the coroutine backend ucontext"
4935   fi
4936 else
4937 cat > $TMPC << EOF
4938 int main(int argc, char *argv[])
4939 {
4940 #if defined(__has_feature)
4941 #if __has_feature(safe_stack)
4942 #error SafeStack Enabled
4943 #endif
4944 #endif
4945     return 0;
4946 }
4947 EOF
4948 if test "$safe_stack" = "no"; then
4949   # Make sure that safe-stack is disabled
4950   if ! compile_prog "-Werror" ""; then
4951     # SafeStack was already enabled, try to explicitly remove the feature
4952     flag="-fno-sanitize=safe-stack"
4953     if ! compile_prog "-Werror $flag" "$flag"; then
4954       error_exit "Configure cannot disable SafeStack"
4955     fi
4956     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4957     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4958   fi
4959 else # "$safe_stack" = ""
4960   # Set safe_stack to yes or no based on pre-existing flags
4961   if compile_prog "-Werror" ""; then
4962     safe_stack="no"
4963   else
4964     safe_stack="yes"
4965     if test "$coroutine" != "ucontext"; then
4966       error_exit "SafeStack is only supported by the coroutine backend ucontext"
4967     fi
4968   fi
4969 fi
4970 fi
4971
4972 ##########################################
4973 # check if we have open_by_handle_at
4974
4975 open_by_handle_at=no
4976 cat > $TMPC << EOF
4977 #include <fcntl.h>
4978 #if !defined(AT_EMPTY_PATH)
4979 # error missing definition
4980 #else
4981 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
4982 #endif
4983 EOF
4984 if compile_prog "" "" ; then
4985     open_by_handle_at=yes
4986 fi
4987
4988 ########################################
4989 # check if we have linux/magic.h
4990
4991 linux_magic_h=no
4992 cat > $TMPC << EOF
4993 #include <linux/magic.h>
4994 int main(void) {
4995   return 0;
4996 }
4997 EOF
4998 if compile_prog "" "" ; then
4999     linux_magic_h=yes
5000 fi
5001
5002 ########################################
5003 # check if we have valgrind/valgrind.h
5004
5005 valgrind_h=no
5006 cat > $TMPC << EOF
5007 #include <valgrind/valgrind.h>
5008 int main(void) {
5009   return 0;
5010 }
5011 EOF
5012 if compile_prog "" "" ; then
5013     valgrind_h=yes
5014 fi
5015
5016 ########################################
5017 # check if environ is declared
5018
5019 has_environ=no
5020 cat > $TMPC << EOF
5021 #include <unistd.h>
5022 int main(void) {
5023     environ = 0;
5024     return 0;
5025 }
5026 EOF
5027 if compile_prog "" "" ; then
5028     has_environ=yes
5029 fi
5030
5031 ########################################
5032 # check if cpuid.h is usable.
5033
5034 cat > $TMPC << EOF
5035 #include <cpuid.h>
5036 int main(void) {
5037     unsigned a, b, c, d;
5038     int max = __get_cpuid_max(0, 0);
5039
5040     if (max >= 1) {
5041         __cpuid(1, a, b, c, d);
5042     }
5043
5044     if (max >= 7) {
5045         __cpuid_count(7, 0, a, b, c, d);
5046     }
5047
5048     return 0;
5049 }
5050 EOF
5051 if compile_prog "" "" ; then
5052     cpuid_h=yes
5053 fi
5054
5055 ##########################################
5056 # avx2 optimization requirement check
5057 #
5058 # There is no point enabling this if cpuid.h is not usable,
5059 # since we won't be able to select the new routines.
5060
5061 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
5062   cat > $TMPC << EOF
5063 #pragma GCC push_options
5064 #pragma GCC target("avx2")
5065 #include <cpuid.h>
5066 #include <immintrin.h>
5067 static int bar(void *a) {
5068     __m256i x = *(__m256i *)a;
5069     return _mm256_testz_si256(x, x);
5070 }
5071 int main(int argc, char *argv[]) { return bar(argv[0]); }
5072 EOF
5073   if compile_object "" ; then
5074     avx2_opt="yes"
5075   else
5076     avx2_opt="no"
5077   fi
5078 fi
5079
5080 ##########################################
5081 # avx512f optimization requirement check
5082 #
5083 # There is no point enabling this if cpuid.h is not usable,
5084 # since we won't be able to select the new routines.
5085 # by default, it is turned off.
5086 # if user explicitly want to enable it, check environment
5087
5088 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
5089   cat > $TMPC << EOF
5090 #pragma GCC push_options
5091 #pragma GCC target("avx512f")
5092 #include <cpuid.h>
5093 #include <immintrin.h>
5094 static int bar(void *a) {
5095     __m512i x = *(__m512i *)a;
5096     return _mm512_test_epi64_mask(x, x);
5097 }
5098 int main(int argc, char *argv[])
5099 {
5100         return bar(argv[0]);
5101 }
5102 EOF
5103   if ! compile_object "" ; then
5104     avx512f_opt="no"
5105   fi
5106 else
5107   avx512f_opt="no"
5108 fi
5109
5110 ########################################
5111 # check if __[u]int128_t is usable.
5112
5113 int128=no
5114 cat > $TMPC << EOF
5115 __int128_t a;
5116 __uint128_t b;
5117 int main (void) {
5118   a = a + b;
5119   b = a * b;
5120   a = a * a;
5121   return 0;
5122 }
5123 EOF
5124 if compile_prog "" "" ; then
5125     int128=yes
5126 fi
5127
5128 #########################################
5129 # See if 128-bit atomic operations are supported.
5130
5131 atomic128=no
5132 if test "$int128" = "yes"; then
5133   cat > $TMPC << EOF
5134 int main(void)
5135 {
5136   unsigned __int128 x = 0, y = 0;
5137   y = __atomic_load_16(&x, 0);
5138   __atomic_store_16(&x, y, 0);
5139   __atomic_compare_exchange_16(&x, &y, x, 0, 0, 0);
5140   return 0;
5141 }
5142 EOF
5143   if compile_prog "" "" ; then
5144     atomic128=yes
5145   fi
5146 fi
5147
5148 cmpxchg128=no
5149 if test "$int128" = yes && test "$atomic128" = no; then
5150   cat > $TMPC << EOF
5151 int main(void)
5152 {
5153   unsigned __int128 x = 0, y = 0;
5154   __sync_val_compare_and_swap_16(&x, y, x);
5155   return 0;
5156 }
5157 EOF
5158   if compile_prog "" "" ; then
5159     cmpxchg128=yes
5160   fi
5161 fi
5162
5163 #########################################
5164 # See if 64-bit atomic operations are supported.
5165 # Note that without __atomic builtins, we can only
5166 # assume atomic loads/stores max at pointer size.
5167
5168 cat > $TMPC << EOF
5169 #include <stdint.h>
5170 int main(void)
5171 {
5172   uint64_t x = 0, y = 0;
5173 #ifdef __ATOMIC_RELAXED
5174   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
5175   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
5176   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
5177   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
5178   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
5179 #else
5180   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
5181   __sync_lock_test_and_set(&x, y);
5182   __sync_val_compare_and_swap(&x, y, 0);
5183   __sync_fetch_and_add(&x, y);
5184 #endif
5185   return 0;
5186 }
5187 EOF
5188 if compile_prog "" "" ; then
5189   atomic64=yes
5190 fi
5191
5192 #########################################
5193 # See if --dynamic-list is supported by the linker
5194 ld_dynamic_list="no"
5195 if test "$static" = "no" ; then
5196     cat > $TMPTXT <<EOF
5197 {
5198   foo;
5199 };
5200 EOF
5201
5202     cat > $TMPC <<EOF
5203 #include <stdio.h>
5204 void foo(void);
5205
5206 void foo(void)
5207 {
5208   printf("foo\n");
5209 }
5210
5211 int main(void)
5212 {
5213   foo();
5214   return 0;
5215 }
5216 EOF
5217
5218     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
5219         ld_dynamic_list="yes"
5220     fi
5221 fi
5222
5223 #########################################
5224 # See if -exported_symbols_list is supported by the linker
5225
5226 ld_exported_symbols_list="no"
5227 if test "$static" = "no" ; then
5228     cat > $TMPTXT <<EOF
5229   _foo
5230 EOF
5231
5232     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
5233         ld_exported_symbols_list="yes"
5234     fi
5235 fi
5236
5237 if  test "$plugins" = "yes" &&
5238     test "$ld_dynamic_list" = "no" &&
5239     test "$ld_exported_symbols_list" = "no" ; then
5240   error_exit \
5241       "Plugin support requires dynamic linking and specifying a set of symbols " \
5242       "that are exported to plugins. Unfortunately your linker doesn't " \
5243       "support the flag (--dynamic-list or -exported_symbols_list) used " \
5244       "for this purpose. You can't build with --static."
5245 fi
5246
5247 ########################################
5248 # See if __attribute__((alias)) is supported.
5249 # This false for Xcode 9, but has been remedied for Xcode 10.
5250 # Unfortunately, travis uses Xcode 9 by default.
5251
5252 attralias=no
5253 cat > $TMPC << EOF
5254 int x = 1;
5255 extern const int y __attribute__((alias("x")));
5256 int main(void) { return 0; }
5257 EOF
5258 if compile_prog "" "" ; then
5259     attralias=yes
5260 fi
5261
5262 ########################################
5263 # check if getauxval is available.
5264
5265 getauxval=no
5266 cat > $TMPC << EOF
5267 #include <sys/auxv.h>
5268 int main(void) {
5269   return getauxval(AT_HWCAP) == 0;
5270 }
5271 EOF
5272 if compile_prog "" "" ; then
5273     getauxval=yes
5274 fi
5275
5276 ########################################
5277 # check if ccache is interfering with
5278 # semantic analysis of macros
5279
5280 unset CCACHE_CPP2
5281 ccache_cpp2=no
5282 cat > $TMPC << EOF
5283 static const int Z = 1;
5284 #define fn() ({ Z; })
5285 #define TAUT(X) ((X) == Z)
5286 #define PAREN(X, Y) (X == Y)
5287 #define ID(X) (X)
5288 int main(int argc, char *argv[])
5289 {
5290     int x = 0, y = 0;
5291     x = ID(x);
5292     x = fn();
5293     fn();
5294     if (PAREN(x, y)) return 0;
5295     if (TAUT(Z)) return 0;
5296     return 0;
5297 }
5298 EOF
5299
5300 if ! compile_object "-Werror"; then
5301     ccache_cpp2=yes
5302 fi
5303
5304 #################################################
5305 # clang does not support glibc + FORTIFY_SOURCE.
5306
5307 if test "$fortify_source" != "no"; then
5308   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
5309     fortify_source="no";
5310   elif test -n "$cxx" && has $cxx &&
5311        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
5312     fortify_source="no";
5313   else
5314     fortify_source="yes"
5315   fi
5316 fi
5317
5318 ###############################################
5319 # Check if copy_file_range is provided by glibc
5320 have_copy_file_range=no
5321 cat > $TMPC << EOF
5322 #include <unistd.h>
5323 int main(void) {
5324   copy_file_range(0, NULL, 0, NULL, 0, 0);
5325   return 0;
5326 }
5327 EOF
5328 if compile_prog "" "" ; then
5329     have_copy_file_range=yes
5330 fi
5331
5332 ##########################################
5333 # check if struct fsxattr is available via linux/fs.h
5334
5335 have_fsxattr=no
5336 cat > $TMPC << EOF
5337 #include <linux/fs.h>
5338 struct fsxattr foo;
5339 int main(void) {
5340   return 0;
5341 }
5342 EOF
5343 if compile_prog "" "" ; then
5344     have_fsxattr=yes
5345 fi
5346
5347 ##########################################
5348 # check for usable membarrier system call
5349 if test "$membarrier" = "yes"; then
5350     have_membarrier=no
5351     if test "$mingw32" = "yes" ; then
5352         have_membarrier=yes
5353     elif test "$linux" = "yes" ; then
5354         cat > $TMPC << EOF
5355     #include <linux/membarrier.h>
5356     #include <sys/syscall.h>
5357     #include <unistd.h>
5358     #include <stdlib.h>
5359     int main(void) {
5360         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
5361         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
5362         exit(0);
5363     }
5364 EOF
5365         if compile_prog "" "" ; then
5366             have_membarrier=yes
5367         fi
5368     fi
5369     if test "$have_membarrier" = "no"; then
5370       feature_not_found "membarrier" "membarrier system call not available"
5371     fi
5372 else
5373     # Do not enable it by default even for Mingw32, because it doesn't
5374     # work on Wine.
5375     membarrier=no
5376 fi
5377
5378 ##########################################
5379 # check if rtnetlink.h exists and is useful
5380 have_rtnetlink=no
5381 cat > $TMPC << EOF
5382 #include <linux/rtnetlink.h>
5383 int main(void) {
5384   return IFLA_PROTO_DOWN;
5385 }
5386 EOF
5387 if compile_prog "" "" ; then
5388     have_rtnetlink=yes
5389 fi
5390
5391 ##########################################
5392 # check for usable AF_VSOCK environment
5393 have_af_vsock=no
5394 cat > $TMPC << EOF
5395 #include <errno.h>
5396 #include <sys/types.h>
5397 #include <sys/socket.h>
5398 #if !defined(AF_VSOCK)
5399 # error missing AF_VSOCK flag
5400 #endif
5401 #include <linux/vm_sockets.h>
5402 int main(void) {
5403     int sock, ret;
5404     struct sockaddr_vm svm;
5405     socklen_t len = sizeof(svm);
5406     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
5407     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
5408     if ((ret == -1) && (errno == ENOTCONN)) {
5409         return 0;
5410     }
5411     return -1;
5412 }
5413 EOF
5414 if compile_prog "" "" ; then
5415     have_af_vsock=yes
5416 fi
5417
5418 ##########################################
5419 # check for usable AF_ALG environment
5420 have_afalg=no
5421 cat > $TMPC << EOF
5422 #include <errno.h>
5423 #include <sys/types.h>
5424 #include <sys/socket.h>
5425 #include <linux/if_alg.h>
5426 int main(void) {
5427     int sock;
5428     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
5429     return sock;
5430 }
5431 EOF
5432 if compile_prog "" "" ; then
5433     have_afalg=yes
5434 fi
5435 if test "$crypto_afalg" = "yes"
5436 then
5437     if test "$have_afalg" != "yes"
5438     then
5439         error_exit "AF_ALG requested but could not be detected"
5440     fi
5441 fi
5442
5443
5444 #################################################
5445 # check for sysmacros.h
5446
5447 have_sysmacros=no
5448 cat > $TMPC << EOF
5449 #include <sys/sysmacros.h>
5450 int main(void) {
5451     return makedev(0, 0);
5452 }
5453 EOF
5454 if compile_prog "" "" ; then
5455     have_sysmacros=yes
5456 fi
5457
5458 ##########################################
5459 # check for _Static_assert()
5460
5461 have_static_assert=no
5462 cat > $TMPC << EOF
5463 _Static_assert(1, "success");
5464 int main(void) {
5465     return 0;
5466 }
5467 EOF
5468 if compile_prog "" "" ; then
5469     have_static_assert=yes
5470 fi
5471
5472 ##########################################
5473 # check for utmpx.h, it is missing e.g. on OpenBSD
5474
5475 have_utmpx=no
5476 cat > $TMPC << EOF
5477 #include <utmpx.h>
5478 struct utmpx user_info;
5479 int main(void) {
5480     return 0;
5481 }
5482 EOF
5483 if compile_prog "" "" ; then
5484     have_utmpx=yes
5485 fi
5486
5487 ##########################################
5488 # check for getrandom()
5489
5490 have_getrandom=no
5491 cat > $TMPC << EOF
5492 #include <sys/random.h>
5493 int main(void) {
5494     return getrandom(0, 0, GRND_NONBLOCK);
5495 }
5496 EOF
5497 if compile_prog "" "" ; then
5498     have_getrandom=yes
5499 fi
5500
5501 ##########################################
5502 # checks for sanitizers
5503
5504 have_asan=no
5505 have_ubsan=no
5506 have_asan_iface_h=no
5507 have_asan_iface_fiber=no
5508
5509 if test "$sanitizers" = "yes" ; then
5510   write_c_skeleton
5511   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
5512       have_asan=yes
5513   fi
5514
5515   # we could use a simple skeleton for flags checks, but this also
5516   # detect the static linking issue of ubsan, see also:
5517   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
5518   cat > $TMPC << EOF
5519 #include <stdlib.h>
5520 int main(void) {
5521     void *tmp = malloc(10);
5522     if (tmp != NULL) {
5523         return *(int *)(tmp + 2);
5524     }
5525     return 1;
5526 }
5527 EOF
5528   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
5529       have_ubsan=yes
5530   fi
5531
5532   if check_include "sanitizer/asan_interface.h" ; then
5533       have_asan_iface_h=yes
5534   fi
5535
5536   cat > $TMPC << EOF
5537 #include <sanitizer/asan_interface.h>
5538 int main(void) {
5539   __sanitizer_start_switch_fiber(0, 0, 0);
5540   return 0;
5541 }
5542 EOF
5543   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
5544       have_asan_iface_fiber=yes
5545   fi
5546 fi
5547
5548 ##########################################
5549 # checks for fuzzer
5550 if test "$fuzzing" = "yes" && test -z "${LIB_FUZZING_ENGINE+xxx}"; then
5551   write_c_fuzzer_skeleton
5552   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
5553     have_fuzzer=yes
5554   else
5555     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
5556     exit 1
5557   fi
5558 fi
5559
5560 # Thread sanitizer is, for now, much noisier than the other sanitizers;
5561 # keep it separate until that is not the case.
5562 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
5563   error_exit "TSAN is not supported with other sanitiziers."
5564 fi
5565 have_tsan=no
5566 have_tsan_iface_fiber=no
5567 if test "$tsan" = "yes" ; then
5568   write_c_skeleton
5569   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5570       have_tsan=yes
5571   fi
5572   cat > $TMPC << EOF
5573 #include <sanitizer/tsan_interface.h>
5574 int main(void) {
5575   __tsan_create_fiber(0);
5576   return 0;
5577 }
5578 EOF
5579   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5580       have_tsan_iface_fiber=yes
5581   fi
5582 fi
5583
5584 ##########################################
5585 # check for libpmem
5586
5587 if test "$libpmem" != "no"; then
5588         if $pkg_config --exists "libpmem"; then
5589                 libpmem="yes"
5590                 libpmem_libs=$($pkg_config --libs libpmem)
5591                 libpmem_cflags=$($pkg_config --cflags libpmem)
5592         else
5593                 if test "$libpmem" = "yes" ; then
5594                         feature_not_found "libpmem" "Install nvml or pmdk"
5595                 fi
5596                 libpmem="no"
5597         fi
5598 fi
5599
5600 ##########################################
5601 # check for libdaxctl
5602
5603 if test "$libdaxctl" != "no"; then
5604         if $pkg_config --atleast-version=57 "libdaxctl"; then
5605                 libdaxctl="yes"
5606                 libdaxctl_libs=$($pkg_config --libs libdaxctl)
5607                 libdaxctl_cflags=$($pkg_config --cflags libdaxctl)
5608         else
5609                 if test "$libdaxctl" = "yes" ; then
5610                         feature_not_found "libdaxctl" "Install libdaxctl"
5611                 fi
5612                 libdaxctl="no"
5613         fi
5614 fi
5615
5616 ##########################################
5617 # check for slirp
5618
5619 case "$slirp" in
5620   auto | enabled | internal)
5621     # Simpler to always update submodule, even if not needed.
5622     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
5623       git_submodules="${git_submodules} slirp"
5624     fi
5625     ;;
5626 esac
5627
5628 ##########################################
5629 # check for usable __NR_keyctl syscall
5630
5631 if test "$linux" = "yes" ; then
5632
5633     have_keyring=no
5634     cat > $TMPC << EOF
5635 #include <errno.h>
5636 #include <asm/unistd.h>
5637 #include <linux/keyctl.h>
5638 #include <unistd.h>
5639 int main(void) {
5640     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
5641 }
5642 EOF
5643     if compile_prog "" "" ; then
5644         have_keyring=yes
5645     fi
5646 fi
5647 if test "$secret_keyring" != "no"
5648 then
5649     if test "$have_keyring" = "yes"
5650     then
5651         secret_keyring=yes
5652     else
5653         if test "$secret_keyring" = "yes"
5654         then
5655             error_exit "syscall __NR_keyctl requested, \
5656 but not implemented on your system"
5657         else
5658             secret_keyring=no
5659         fi
5660     fi
5661 fi
5662
5663 ##########################################
5664 # End of CC checks
5665 # After here, no more $cc or $ld runs
5666
5667 write_c_skeleton
5668
5669 if test "$gcov" = "yes" ; then
5670   :
5671 elif test "$fortify_source" = "yes" ; then
5672   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
5673   debug=no
5674 fi
5675
5676 case "$ARCH" in
5677 alpha)
5678   # Ensure there's only a single GP
5679   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
5680 ;;
5681 esac
5682
5683 if test "$gprof" = "yes" ; then
5684   QEMU_CFLAGS="-p $QEMU_CFLAGS"
5685   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
5686 fi
5687
5688 if test "$have_asan" = "yes"; then
5689   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
5690   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
5691   if test "$have_asan_iface_h" = "no" ; then
5692       echo "ASAN build enabled, but ASAN header missing." \
5693            "Without code annotation, the report may be inferior."
5694   elif test "$have_asan_iface_fiber" = "no" ; then
5695       echo "ASAN build enabled, but ASAN header is too old." \
5696            "Without code annotation, the report may be inferior."
5697   fi
5698 fi
5699 if test "$have_tsan" = "yes" ; then
5700   if test "$have_tsan_iface_fiber" = "yes" ; then
5701     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
5702     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
5703   else
5704     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
5705   fi
5706 elif test "$tsan" = "yes" ; then
5707   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
5708 fi
5709 if test "$have_ubsan" = "yes"; then
5710   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
5711   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
5712 fi
5713
5714 ##########################################
5715 # Do we have libnfs
5716 if test "$libnfs" != "no" ; then
5717   if $pkg_config --atleast-version=1.9.3 libnfs; then
5718     libnfs="yes"
5719     libnfs_libs=$($pkg_config --libs libnfs)
5720   else
5721     if test "$libnfs" = "yes" ; then
5722       feature_not_found "libnfs" "Install libnfs devel >= 1.9.3"
5723     fi
5724     libnfs="no"
5725   fi
5726 fi
5727
5728 ##########################################
5729
5730 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
5731 if test "$solaris" = "no" && test "$tsan" = "no"; then
5732     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
5733         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
5734     fi
5735 fi
5736
5737 # Use ASLR, no-SEH and DEP if available
5738 if test "$mingw32" = "yes" ; then
5739     flags="--no-seh --nxcompat"
5740
5741     # Disable ASLR for debug builds to allow debugging with gdb
5742     if test "$debug" = "no" ; then
5743         flags="--dynamicbase $flags"
5744     fi
5745
5746     for flag in $flags; do
5747         if ld_has $flag ; then
5748             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
5749         fi
5750     done
5751 fi
5752
5753 # We can only support ivshmem if we have eventfd
5754 if [ "$eventfd" = "yes" ]; then
5755   ivshmem=yes
5756 fi
5757
5758 if test "$softmmu" = yes ; then
5759   if test "$linux" = yes; then
5760     if test "$virtfs" != no && test "$cap_ng" = yes && test "$attr" = yes ; then
5761       virtfs=yes
5762     else
5763       if test "$virtfs" = yes; then
5764         error_exit "VirtFS requires libcap-ng devel and libattr devel"
5765       fi
5766       virtfs=no
5767     fi
5768   else
5769     if test "$virtfs" = yes; then
5770       error_exit "VirtFS is supported only on Linux"
5771     fi
5772     virtfs=no
5773   fi
5774 fi
5775
5776 # Probe for guest agent support/options
5777
5778 if [ "$guest_agent" != "no" ]; then
5779   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
5780       guest_agent=no
5781   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
5782       guest_agent=yes
5783   elif [ "$guest_agent" != yes ]; then
5784       guest_agent=no
5785   else
5786       error_exit "Guest agent is not supported on this platform"
5787   fi
5788 fi
5789
5790 # Guest agent Window MSI  package
5791
5792 if test "$guest_agent" != yes; then
5793   if test "$guest_agent_msi" = yes; then
5794     error_exit "MSI guest agent package requires guest agent enabled"
5795   fi
5796   guest_agent_msi=no
5797 elif test "$mingw32" != "yes"; then
5798   if test "$guest_agent_msi" = "yes"; then
5799     error_exit "MSI guest agent package is available only for MinGW Windows cross-compilation"
5800   fi
5801   guest_agent_msi=no
5802 elif ! has wixl; then
5803   if test "$guest_agent_msi" = "yes"; then
5804     error_exit "MSI guest agent package requires wixl tool installed ( usually from msitools package )"
5805   fi
5806   guest_agent_msi=no
5807 else
5808   # we support qemu-ga, mingw32, and wixl: default to MSI enabled if it wasn't
5809   # disabled explicitly
5810   if test "$guest_agent_msi" != "no"; then
5811     guest_agent_msi=yes
5812   fi
5813 fi
5814
5815 if test "$guest_agent_msi" = "yes"; then
5816   if test "$guest_agent_with_vss" = "yes"; then
5817     QEMU_GA_MSI_WITH_VSS="-D InstallVss"
5818   fi
5819
5820   if test "$QEMU_GA_MANUFACTURER" = ""; then
5821     QEMU_GA_MANUFACTURER=QEMU
5822   fi
5823
5824   if test "$QEMU_GA_DISTRO" = ""; then
5825     QEMU_GA_DISTRO=Linux
5826   fi
5827
5828   if test "$QEMU_GA_VERSION" = ""; then
5829       QEMU_GA_VERSION=$(cat $source_path/VERSION)
5830   fi
5831
5832   QEMU_GA_MSI_MINGW_DLL_PATH="-D Mingw_dlls=$($pkg_config --variable=prefix glib-2.0)/bin"
5833
5834   case "$cpu" in
5835   x86_64)
5836     QEMU_GA_MSI_ARCH="-a x64 -D Arch=64"
5837     ;;
5838   i386)
5839     QEMU_GA_MSI_ARCH="-D Arch=32"
5840     ;;
5841   *)
5842     error_exit "CPU $cpu not supported for building installation package"
5843     ;;
5844   esac
5845 fi
5846
5847 # Mac OS X ships with a broken assembler
5848 roms=
5849 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
5850         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
5851         test "$targetos" != "Haiku" && test "$softmmu" = yes ; then
5852     # Different host OS linkers have different ideas about the name of the ELF
5853     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
5854     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
5855     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
5856         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
5857             ld_i386_emulation="$emu"
5858             roms="optionrom"
5859             break
5860         fi
5861     done
5862 fi
5863
5864 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
5865 if test "$cpu" = "s390x" ; then
5866   write_c_skeleton
5867   if compile_prog "-march=z900" ""; then
5868     roms="$roms s390-ccw"
5869     # SLOF is required for building the s390-ccw firmware on s390x,
5870     # since it is using the libnet code from SLOF for network booting.
5871     if test -e "${source_path}/.git" ; then
5872       git_submodules="${git_submodules} roms/SLOF"
5873     fi
5874   fi
5875 fi
5876
5877 # Check that the C++ compiler exists and works with the C compiler.
5878 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
5879 if has $cxx; then
5880     cat > $TMPC <<EOF
5881 int c_function(void);
5882 int main(void) { return c_function(); }
5883 EOF
5884
5885     compile_object
5886
5887     cat > $TMPCXX <<EOF
5888 extern "C" {
5889    int c_function(void);
5890 }
5891 int c_function(void) { return 42; }
5892 EOF
5893
5894     update_cxxflags
5895
5896     if do_cxx $CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
5897         # C++ compiler $cxx works ok with C compiler $cc
5898         :
5899     else
5900         echo "C++ compiler $cxx does not work with C compiler $cc"
5901         echo "Disabling C++ specific optional code"
5902         cxx=
5903     fi
5904 else
5905     echo "No C++ compiler available; disabling C++ specific optional code"
5906     cxx=
5907 fi
5908
5909 if test $git_update = 'yes' ; then
5910     (cd "${source_path}" && GIT="$git" "./scripts/git-submodule.sh" update "$git_submodules")
5911 fi
5912
5913 config_host_mak="config-host.mak"
5914
5915 echo "# Automatically generated by configure - do not modify" > $config_host_mak
5916 echo >> $config_host_mak
5917
5918 echo all: >> $config_host_mak
5919 echo "GIT=$git" >> $config_host_mak
5920 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
5921 echo "GIT_UPDATE=$git_update" >> $config_host_mak
5922
5923 echo "ARCH=$ARCH" >> $config_host_mak
5924
5925 if test "$default_devices" = "yes" ; then
5926   echo "CONFIG_MINIKCONF_MODE=--defconfig" >> $config_host_mak
5927 else
5928   echo "CONFIG_MINIKCONF_MODE=--allnoconfig" >> $config_host_mak
5929 fi
5930 if test "$debug_tcg" = "yes" ; then
5931   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
5932 fi
5933 if test "$strip_opt" = "yes" ; then
5934   echo "STRIP=${strip}" >> $config_host_mak
5935 fi
5936 if test "$bigendian" = "yes" ; then
5937   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
5938 fi
5939 if test "$mingw32" = "yes" ; then
5940   echo "CONFIG_WIN32=y" >> $config_host_mak
5941   rc_version=$(cat $source_path/VERSION)
5942   version_major=${rc_version%%.*}
5943   rc_version=${rc_version#*.}
5944   version_minor=${rc_version%%.*}
5945   rc_version=${rc_version#*.}
5946   version_subminor=${rc_version%%.*}
5947   version_micro=0
5948   echo "CONFIG_FILEVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
5949   echo "CONFIG_PRODUCTVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
5950   if test "$guest_agent_with_vss" = "yes" ; then
5951     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
5952     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
5953     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
5954   fi
5955   if test "$guest_agent_ntddscsi" = "yes" ; then
5956     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
5957   fi
5958   if test "$guest_agent_msi" = "yes"; then
5959     echo "CONFIG_QGA_MSI=y" >> $config_host_mak
5960     echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
5961     echo "QEMU_GA_MSI_WITH_VSS=${QEMU_GA_MSI_WITH_VSS}" >> $config_host_mak
5962     echo "QEMU_GA_MSI_ARCH=${QEMU_GA_MSI_ARCH}" >> $config_host_mak
5963     echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
5964     echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
5965     echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
5966   fi
5967 else
5968   echo "CONFIG_POSIX=y" >> $config_host_mak
5969 fi
5970
5971 if test "$linux" = "yes" ; then
5972   echo "CONFIG_LINUX=y" >> $config_host_mak
5973 fi
5974
5975 if test "$darwin" = "yes" ; then
5976   echo "CONFIG_DARWIN=y" >> $config_host_mak
5977 fi
5978
5979 if test "$solaris" = "yes" ; then
5980   echo "CONFIG_SOLARIS=y" >> $config_host_mak
5981 fi
5982 if test "$haiku" = "yes" ; then
5983   echo "CONFIG_HAIKU=y" >> $config_host_mak
5984 fi
5985 if test "$static" = "yes" ; then
5986   echo "CONFIG_STATIC=y" >> $config_host_mak
5987 fi
5988 if test "$profiler" = "yes" ; then
5989   echo "CONFIG_PROFILER=y" >> $config_host_mak
5990 fi
5991 if test "$want_tools" = "yes" ; then
5992   echo "CONFIG_TOOLS=y" >> $config_host_mak
5993 fi
5994 if test "$guest_agent" = "yes" ; then
5995   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
5996 fi
5997 echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
5998 if test "$vde" = "yes" ; then
5999   echo "CONFIG_VDE=y" >> $config_host_mak
6000   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
6001 fi
6002 if test "$netmap" = "yes" ; then
6003   echo "CONFIG_NETMAP=y" >> $config_host_mak
6004 fi
6005 if test "$l2tpv3" = "yes" ; then
6006   echo "CONFIG_L2TPV3=y" >> $config_host_mak
6007 fi
6008 if test "$gprof" = "yes" ; then
6009   echo "CONFIG_GPROF=y" >> $config_host_mak
6010 fi
6011 if test "$cap_ng" = "yes" ; then
6012   echo "CONFIG_LIBCAP_NG=y" >> $config_host_mak
6013   echo "LIBCAP_NG_LIBS=$cap_libs" >> $config_host_mak
6014 fi
6015 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
6016 for drv in $audio_drv_list; do
6017     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
6018     echo "$def=y" >> $config_host_mak
6019 done
6020 if test "$alsa" = "yes" ; then
6021     echo "CONFIG_ALSA=y" >> $config_host_mak
6022 fi
6023 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
6024 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
6025 if test "$libpulse" = "yes" ; then
6026     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
6027 fi
6028 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
6029 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
6030 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
6031 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
6032 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
6033 if test "$libjack" = "yes" ; then
6034     echo "CONFIG_LIBJACK=y" >> $config_host_mak
6035 fi
6036 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
6037 if test "$audio_win_int" = "yes" ; then
6038   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
6039 fi
6040 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
6041 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
6042 if test "$xfs" = "yes" ; then
6043   echo "CONFIG_XFS=y" >> $config_host_mak
6044 fi
6045 qemu_version=$(head $source_path/VERSION)
6046 echo "PKGVERSION=$pkgversion" >>$config_host_mak
6047 echo "SRC_PATH=$source_path" >> $config_host_mak
6048 echo "TARGET_DIRS=$target_list" >> $config_host_mak
6049 if test "$modules" = "yes"; then
6050   # $shacmd can generate a hash started with digit, which the compiler doesn't
6051   # like as an symbol. So prefix it with an underscore
6052   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
6053   echo "CONFIG_MODULES=y" >> $config_host_mak
6054 fi
6055 if test "$module_upgrades" = "yes"; then
6056   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
6057 fi
6058 if test "$have_x11" = "yes" && test "$need_x11" = "yes"; then
6059   echo "CONFIG_X11=y" >> $config_host_mak
6060   echo "X11_CFLAGS=$x11_cflags" >> $config_host_mak
6061   echo "X11_LIBS=$x11_libs" >> $config_host_mak
6062 fi
6063 if test "$pipe2" = "yes" ; then
6064   echo "CONFIG_PIPE2=y" >> $config_host_mak
6065 fi
6066 if test "$accept4" = "yes" ; then
6067   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
6068 fi
6069 if test "$splice" = "yes" ; then
6070   echo "CONFIG_SPLICE=y" >> $config_host_mak
6071 fi
6072 if test "$eventfd" = "yes" ; then
6073   echo "CONFIG_EVENTFD=y" >> $config_host_mak
6074 fi
6075 if test "$memfd" = "yes" ; then
6076   echo "CONFIG_MEMFD=y" >> $config_host_mak
6077 fi
6078 if test "$have_usbfs" = "yes" ; then
6079   echo "CONFIG_USBFS=y" >> $config_host_mak
6080 fi
6081 if test "$fallocate" = "yes" ; then
6082   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
6083 fi
6084 if test "$fallocate_punch_hole" = "yes" ; then
6085   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
6086 fi
6087 if test "$fallocate_zero_range" = "yes" ; then
6088   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
6089 fi
6090 if test "$posix_fallocate" = "yes" ; then
6091   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
6092 fi
6093 if test "$sync_file_range" = "yes" ; then
6094   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
6095 fi
6096 if test "$fiemap" = "yes" ; then
6097   echo "CONFIG_FIEMAP=y" >> $config_host_mak
6098 fi
6099 if test "$dup3" = "yes" ; then
6100   echo "CONFIG_DUP3=y" >> $config_host_mak
6101 fi
6102 if test "$ppoll" = "yes" ; then
6103   echo "CONFIG_PPOLL=y" >> $config_host_mak
6104 fi
6105 if test "$prctl_pr_set_timerslack" = "yes" ; then
6106   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
6107 fi
6108 if test "$epoll" = "yes" ; then
6109   echo "CONFIG_EPOLL=y" >> $config_host_mak
6110 fi
6111 if test "$epoll_create1" = "yes" ; then
6112   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
6113 fi
6114 if test "$sendfile" = "yes" ; then
6115   echo "CONFIG_SENDFILE=y" >> $config_host_mak
6116 fi
6117 if test "$timerfd" = "yes" ; then
6118   echo "CONFIG_TIMERFD=y" >> $config_host_mak
6119 fi
6120 if test "$setns" = "yes" ; then
6121   echo "CONFIG_SETNS=y" >> $config_host_mak
6122 fi
6123 if test "$clock_adjtime" = "yes" ; then
6124   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
6125 fi
6126 if test "$syncfs" = "yes" ; then
6127   echo "CONFIG_SYNCFS=y" >> $config_host_mak
6128 fi
6129 if test "$kcov" = "yes" ; then
6130   echo "CONFIG_KCOV=y" >> $config_host_mak
6131 fi
6132 if test "$btrfs" = "yes" ; then
6133   echo "CONFIG_BTRFS=y" >> $config_host_mak
6134 fi
6135 if test "$inotify" = "yes" ; then
6136   echo "CONFIG_INOTIFY=y" >> $config_host_mak
6137 fi
6138 if test "$inotify1" = "yes" ; then
6139   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
6140 fi
6141 if test "$sem_timedwait" = "yes" ; then
6142   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
6143 fi
6144 if test "$strchrnul" = "yes" ; then
6145   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
6146 fi
6147 if test "$st_atim" = "yes" ; then
6148   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
6149 fi
6150 if test "$byteswap_h" = "yes" ; then
6151   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
6152 fi
6153 if test "$bswap_h" = "yes" ; then
6154   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
6155 fi
6156 if test "$curl" = "yes" ; then
6157   echo "CONFIG_CURL=y" >> $config_host_mak
6158   echo "CURL_CFLAGS=$curl_cflags" >> $config_host_mak
6159   echo "CURL_LIBS=$curl_libs" >> $config_host_mak
6160 fi
6161 if test "$brlapi" = "yes" ; then
6162   echo "CONFIG_BRLAPI=y" >> $config_host_mak
6163   echo "BRLAPI_LIBS=$brlapi_libs" >> $config_host_mak
6164 fi
6165 if test "$gtk" = "yes" ; then
6166   echo "CONFIG_GTK=y" >> $config_host_mak
6167   echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
6168   echo "GTK_LIBS=$gtk_libs" >> $config_host_mak
6169   if test "$gtk_gl" = "yes" ; then
6170     echo "CONFIG_GTK_GL=y" >> $config_host_mak
6171   fi
6172 fi
6173 if test "$gio" = "yes" ; then
6174     echo "CONFIG_GIO=y" >> $config_host_mak
6175     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
6176     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
6177     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
6178 fi
6179 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
6180 if test "$gnutls" = "yes" ; then
6181   echo "CONFIG_GNUTLS=y" >> $config_host_mak
6182   echo "GNUTLS_CFLAGS=$gnutls_cflags" >> $config_host_mak
6183   echo "GNUTLS_LIBS=$gnutls_libs" >> $config_host_mak
6184 fi
6185 if test "$gcrypt" = "yes" ; then
6186   echo "CONFIG_GCRYPT=y" >> $config_host_mak
6187   if test "$gcrypt_hmac" = "yes" ; then
6188     echo "CONFIG_GCRYPT_HMAC=y" >> $config_host_mak
6189   fi
6190   echo "GCRYPT_CFLAGS=$gcrypt_cflags" >> $config_host_mak
6191   echo "GCRYPT_LIBS=$gcrypt_libs" >> $config_host_mak
6192 fi
6193 if test "$nettle" = "yes" ; then
6194   echo "CONFIG_NETTLE=y" >> $config_host_mak
6195   echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
6196   echo "NETTLE_CFLAGS=$nettle_cflags" >> $config_host_mak
6197   echo "NETTLE_LIBS=$nettle_libs" >> $config_host_mak
6198 fi
6199 if test "$qemu_private_xts" = "yes" ; then
6200   echo "CONFIG_QEMU_PRIVATE_XTS=y" >> $config_host_mak
6201 fi
6202 if test "$tasn1" = "yes" ; then
6203   echo "CONFIG_TASN1=y" >> $config_host_mak
6204 fi
6205 if test "$auth_pam" = "yes" ; then
6206     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
6207 fi
6208 if test "$have_drm_h" = "yes" ; then
6209   echo "HAVE_DRM_H=y" >> $config_host_mak
6210 fi
6211 if test "$have_broken_size_max" = "yes" ; then
6212     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
6213 fi
6214 if test "$have_openpty" = "yes" ; then
6215     echo "HAVE_OPENPTY=y" >> $config_host_mak
6216 fi
6217 if test "$have_sys_signal_h" = "yes" ; then
6218     echo "HAVE_SYS_SIGNAL_H=y" >> $config_host_mak
6219 fi
6220
6221 # Work around a system header bug with some kernel/XFS header
6222 # versions where they both try to define 'struct fsxattr':
6223 # xfs headers will not try to redefine structs from linux headers
6224 # if this macro is set.
6225 if test "$have_fsxattr" = "yes" ; then
6226     echo "HAVE_FSXATTR=y" >> $config_host_mak
6227 fi
6228 if test "$have_copy_file_range" = "yes" ; then
6229     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
6230 fi
6231 if test "$vte" = "yes" ; then
6232   echo "CONFIG_VTE=y" >> $config_host_mak
6233   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
6234   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
6235 fi
6236 if test "$virglrenderer" = "yes" ; then
6237   echo "CONFIG_VIRGL=y" >> $config_host_mak
6238   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
6239   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
6240 fi
6241 if test "$xen" = "enabled" ; then
6242   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
6243   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
6244   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
6245   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
6246 fi
6247 if test "$linux_aio" = "yes" ; then
6248   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
6249 fi
6250 if test "$linux_io_uring" = "yes" ; then
6251   echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
6252   echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
6253   echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
6254 fi
6255 if test "$attr" = "yes" ; then
6256   echo "CONFIG_ATTR=y" >> $config_host_mak
6257   echo "LIBATTR_LIBS=$libattr_libs" >> $config_host_mak
6258 fi
6259 if test "$libattr" = "yes" ; then
6260   echo "CONFIG_LIBATTR=y" >> $config_host_mak
6261 fi
6262 if test "$virtfs" = "yes" ; then
6263   echo "CONFIG_VIRTFS=y" >> $config_host_mak
6264 fi
6265 if test "$vhost_scsi" = "yes" ; then
6266   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
6267 fi
6268 if test "$vhost_net" = "yes" ; then
6269   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
6270 fi
6271 if test "$vhost_net_user" = "yes" ; then
6272   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
6273 fi
6274 if test "$vhost_net_vdpa" = "yes" ; then
6275   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
6276 fi
6277 if test "$vhost_crypto" = "yes" ; then
6278   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
6279 fi
6280 if test "$vhost_vsock" = "yes" ; then
6281   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
6282   if test "$vhost_user" = "yes" ; then
6283     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
6284   fi
6285 fi
6286 if test "$vhost_kernel" = "yes" ; then
6287   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
6288 fi
6289 if test "$vhost_user" = "yes" ; then
6290   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
6291 fi
6292 if test "$vhost_vdpa" = "yes" ; then
6293   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
6294 fi
6295 if test "$vhost_user_fs" = "yes" ; then
6296   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
6297 fi
6298 if test "$iovec" = "yes" ; then
6299   echo "CONFIG_IOVEC=y" >> $config_host_mak
6300 fi
6301 if test "$preadv" = "yes" ; then
6302   echo "CONFIG_PREADV=y" >> $config_host_mak
6303 fi
6304 if test "$membarrier" = "yes" ; then
6305   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
6306 fi
6307 if test "$signalfd" = "yes" ; then
6308   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
6309 fi
6310 if test "$optreset" = "yes" ; then
6311   echo "HAVE_OPTRESET=y" >> $config_host_mak
6312 fi
6313 if test "$tcg" = "enabled"; then
6314   if test "$tcg_interpreter" = "yes" ; then
6315     echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
6316   fi
6317 fi
6318 if test "$fdatasync" = "yes" ; then
6319   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
6320 fi
6321 if test "$madvise" = "yes" ; then
6322   echo "CONFIG_MADVISE=y" >> $config_host_mak
6323 fi
6324 if test "$posix_madvise" = "yes" ; then
6325   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
6326 fi
6327 if test "$posix_memalign" = "yes" ; then
6328   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
6329 fi
6330 if test "$spice" = "yes" ; then
6331   echo "CONFIG_SPICE=y" >> $config_host_mak
6332   echo "SPICE_CFLAGS=$spice_cflags" >> $config_host_mak
6333   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
6334 fi
6335
6336 if test "$smartcard" = "yes" ; then
6337   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
6338   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
6339   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
6340 fi
6341
6342 if test "$libusb" = "yes" ; then
6343   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
6344   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
6345   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
6346 fi
6347
6348 if test "$usb_redir" = "yes" ; then
6349   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
6350   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
6351   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
6352 fi
6353
6354 if test "$opengl" = "yes" ; then
6355   echo "CONFIG_OPENGL=y" >> $config_host_mak
6356   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
6357   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
6358   if test "$opengl_dmabuf" = "yes" ; then
6359     echo "CONFIG_OPENGL_DMABUF=y" >> $config_host_mak
6360   fi
6361 fi
6362
6363 if test "$gbm" = "yes" ; then
6364     echo "CONFIG_GBM=y" >> $config_host_mak
6365     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
6366     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
6367 fi
6368
6369
6370 if test "$avx2_opt" = "yes" ; then
6371   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
6372 fi
6373
6374 if test "$avx512f_opt" = "yes" ; then
6375   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
6376 fi
6377
6378 if test "$lzo" = "yes" ; then
6379   echo "CONFIG_LZO=y" >> $config_host_mak
6380   echo "LZO_LIBS=$lzo_libs" >> $config_host_mak
6381 fi
6382
6383 if test "$snappy" = "yes" ; then
6384   echo "CONFIG_SNAPPY=y" >> $config_host_mak
6385   echo "SNAPPY_LIBS=$snappy_libs" >> $config_host_mak
6386 fi
6387
6388 if test "$bzip2" = "yes" ; then
6389   echo "CONFIG_BZIP2=y" >> $config_host_mak
6390   echo "BZIP2_LIBS=-lbz2" >> $config_host_mak
6391 fi
6392
6393 if test "$lzfse" = "yes" ; then
6394   echo "CONFIG_LZFSE=y" >> $config_host_mak
6395   echo "LZFSE_LIBS=-llzfse" >> $config_host_mak
6396 fi
6397
6398 if test "$zstd" = "yes" ; then
6399   echo "CONFIG_ZSTD=y" >> $config_host_mak
6400   echo "ZSTD_CFLAGS=$zstd_cflags" >> $config_host_mak
6401   echo "ZSTD_LIBS=$zstd_libs" >> $config_host_mak
6402 fi
6403
6404 if test "$libiscsi" = "yes" ; then
6405   echo "CONFIG_LIBISCSI=y" >> $config_host_mak
6406   echo "LIBISCSI_CFLAGS=$libiscsi_cflags" >> $config_host_mak
6407   echo "LIBISCSI_LIBS=$libiscsi_libs" >> $config_host_mak
6408 fi
6409
6410 if test "$libnfs" = "yes" ; then
6411   echo "CONFIG_LIBNFS=y" >> $config_host_mak
6412   echo "LIBNFS_LIBS=$libnfs_libs" >> $config_host_mak
6413 fi
6414
6415 if test "$seccomp" = "yes"; then
6416   echo "CONFIG_SECCOMP=y" >> $config_host_mak
6417   echo "SECCOMP_CFLAGS=$seccomp_cflags" >> $config_host_mak
6418   echo "SECCOMP_LIBS=$seccomp_libs" >> $config_host_mak
6419 fi
6420
6421 # XXX: suppress that
6422 if [ "$bsd" = "yes" ] ; then
6423   echo "CONFIG_BSD=y" >> $config_host_mak
6424 fi
6425
6426 if test "$qom_cast_debug" = "yes" ; then
6427   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
6428 fi
6429 if test "$rbd" = "yes" ; then
6430   echo "CONFIG_RBD=y" >> $config_host_mak
6431   echo "RBD_LIBS=$rbd_libs" >> $config_host_mak
6432 fi
6433
6434 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
6435 if test "$coroutine_pool" = "yes" ; then
6436   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
6437 else
6438   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
6439 fi
6440
6441 if test "$debug_stack_usage" = "yes" ; then
6442   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
6443 fi
6444
6445 if test "$crypto_afalg" = "yes" ; then
6446   echo "CONFIG_AF_ALG=y" >> $config_host_mak
6447 fi
6448
6449 if test "$open_by_handle_at" = "yes" ; then
6450   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
6451 fi
6452
6453 if test "$linux_magic_h" = "yes" ; then
6454   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
6455 fi
6456
6457 if test "$valgrind_h" = "yes" ; then
6458   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
6459 fi
6460
6461 if test "$have_asan_iface_fiber" = "yes" ; then
6462     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
6463 fi
6464
6465 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
6466     echo "CONFIG_TSAN=y" >> $config_host_mak
6467 fi
6468
6469 if test "$has_environ" = "yes" ; then
6470   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
6471 fi
6472
6473 if test "$cpuid_h" = "yes" ; then
6474   echo "CONFIG_CPUID_H=y" >> $config_host_mak
6475 fi
6476
6477 if test "$int128" = "yes" ; then
6478   echo "CONFIG_INT128=y" >> $config_host_mak
6479 fi
6480
6481 if test "$atomic128" = "yes" ; then
6482   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
6483 fi
6484
6485 if test "$cmpxchg128" = "yes" ; then
6486   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
6487 fi
6488
6489 if test "$atomic64" = "yes" ; then
6490   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
6491 fi
6492
6493 if test "$attralias" = "yes" ; then
6494   echo "CONFIG_ATTRIBUTE_ALIAS=y" >> $config_host_mak
6495 fi
6496
6497 if test "$getauxval" = "yes" ; then
6498   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
6499 fi
6500
6501 if test "$glusterfs" = "yes" ; then
6502   echo "CONFIG_GLUSTERFS=y" >> $config_host_mak
6503   echo "GLUSTERFS_CFLAGS=$glusterfs_cflags" >> $config_host_mak
6504   echo "GLUSTERFS_LIBS=$glusterfs_libs" >> $config_host_mak
6505 fi
6506
6507 if test "$glusterfs_xlator_opt" = "yes" ; then
6508   echo "CONFIG_GLUSTERFS_XLATOR_OPT=y" >> $config_host_mak
6509 fi
6510
6511 if test "$glusterfs_discard" = "yes" ; then
6512   echo "CONFIG_GLUSTERFS_DISCARD=y" >> $config_host_mak
6513 fi
6514
6515 if test "$glusterfs_fallocate" = "yes" ; then
6516   echo "CONFIG_GLUSTERFS_FALLOCATE=y" >> $config_host_mak
6517 fi
6518
6519 if test "$glusterfs_zerofill" = "yes" ; then
6520   echo "CONFIG_GLUSTERFS_ZEROFILL=y" >> $config_host_mak
6521 fi
6522
6523 if test "$glusterfs_ftruncate_has_stat" = "yes" ; then
6524   echo "CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT=y" >> $config_host_mak
6525 fi
6526
6527 if test "$glusterfs_iocb_has_stat" = "yes" ; then
6528   echo "CONFIG_GLUSTERFS_IOCB_HAS_STAT=y" >> $config_host_mak
6529 fi
6530
6531 if test "$libssh" = "yes" ; then
6532   echo "CONFIG_LIBSSH=y" >> $config_host_mak
6533   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
6534   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
6535 fi
6536
6537 if test "$live_block_migration" = "yes" ; then
6538   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
6539 fi
6540
6541 if test "$tpm" = "yes"; then
6542   echo 'CONFIG_TPM=y' >> $config_host_mak
6543 fi
6544
6545 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
6546 if have_backend "nop"; then
6547   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
6548 fi
6549 if have_backend "simple"; then
6550   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
6551   # Set the appropriate trace file.
6552   trace_file="\"$trace_file-\" FMT_pid"
6553 fi
6554 if have_backend "log"; then
6555   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
6556 fi
6557 if have_backend "ust"; then
6558   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
6559   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
6560   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
6561 fi
6562 if have_backend "dtrace"; then
6563   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
6564   if test "$trace_backend_stap" = "yes" ; then
6565     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
6566   fi
6567 fi
6568 if have_backend "ftrace"; then
6569   if test "$linux" = "yes" ; then
6570     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
6571   else
6572     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
6573   fi
6574 fi
6575 if have_backend "syslog"; then
6576   if test "$posix_syslog" = "yes" ; then
6577     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
6578   else
6579     feature_not_found "syslog(trace backend)" "syslog not available"
6580   fi
6581 fi
6582 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
6583
6584 if test "$rdma" = "yes" ; then
6585   echo "CONFIG_RDMA=y" >> $config_host_mak
6586   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
6587 fi
6588
6589 if test "$pvrdma" = "yes" ; then
6590   echo "CONFIG_PVRDMA=y" >> $config_host_mak
6591 fi
6592
6593 if test "$have_rtnetlink" = "yes" ; then
6594   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
6595 fi
6596
6597 if test "$libxml2" = "yes" ; then
6598   echo "CONFIG_LIBXML2=y" >> $config_host_mak
6599   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
6600   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
6601 fi
6602
6603 if test "$replication" = "yes" ; then
6604   echo "CONFIG_REPLICATION=y" >> $config_host_mak
6605 fi
6606
6607 if test "$have_af_vsock" = "yes" ; then
6608   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
6609 fi
6610
6611 if test "$have_sysmacros" = "yes" ; then
6612   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
6613 fi
6614
6615 if test "$have_static_assert" = "yes" ; then
6616   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
6617 fi
6618
6619 if test "$have_utmpx" = "yes" ; then
6620   echo "HAVE_UTMPX=y" >> $config_host_mak
6621 fi
6622 if test "$have_getrandom" = "yes" ; then
6623   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
6624 fi
6625 if test "$ivshmem" = "yes" ; then
6626   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
6627 fi
6628 if test "$debug_mutex" = "yes" ; then
6629   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
6630 fi
6631
6632 # Hold two types of flag:
6633 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
6634 #                                     a thread we have a handle to
6635 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
6636 #                                     platform
6637 if test "$pthread_setname_np_w_tid" = "yes" ; then
6638   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6639   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
6640 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
6641   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6642   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
6643 fi
6644
6645 if test "$libpmem" = "yes" ; then
6646   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
6647   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
6648   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
6649 fi
6650
6651 if test "$libdaxctl" = "yes" ; then
6652   echo "CONFIG_LIBDAXCTL=y" >> $config_host_mak
6653   echo "LIBDAXCTL_LIBS=$libdaxctl_libs" >> $config_host_mak
6654 fi
6655
6656 if test "$bochs" = "yes" ; then
6657   echo "CONFIG_BOCHS=y" >> $config_host_mak
6658 fi
6659 if test "$cloop" = "yes" ; then
6660   echo "CONFIG_CLOOP=y" >> $config_host_mak
6661 fi
6662 if test "$dmg" = "yes" ; then
6663   echo "CONFIG_DMG=y" >> $config_host_mak
6664 fi
6665 if test "$qcow1" = "yes" ; then
6666   echo "CONFIG_QCOW1=y" >> $config_host_mak
6667 fi
6668 if test "$vdi" = "yes" ; then
6669   echo "CONFIG_VDI=y" >> $config_host_mak
6670 fi
6671 if test "$vvfat" = "yes" ; then
6672   echo "CONFIG_VVFAT=y" >> $config_host_mak
6673 fi
6674 if test "$qed" = "yes" ; then
6675   echo "CONFIG_QED=y" >> $config_host_mak
6676 fi
6677 if test "$parallels" = "yes" ; then
6678   echo "CONFIG_PARALLELS=y" >> $config_host_mak
6679 fi
6680 if test "$sheepdog" = "yes" ; then
6681   add_to deprecated_features "sheepdog"
6682   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
6683 fi
6684 if test "$have_mlockall" = "yes" ; then
6685   echo "HAVE_MLOCKALL=y" >> $config_host_mak
6686 fi
6687 if test "$fuzzing" = "yes" ; then
6688   # If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
6689   # needed CFLAGS have already been provided
6690   if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
6691     QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
6692     FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
6693   else
6694     FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
6695   fi
6696 fi
6697
6698 if test "$plugins" = "yes" ; then
6699     echo "CONFIG_PLUGIN=y" >> $config_host_mak
6700     # Copy the export object list to the build dir
6701     if test "$ld_dynamic_list" = "yes" ; then
6702         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
6703         ld_symbols=qemu-plugins-ld.symbols
6704         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
6705     elif test "$ld_exported_symbols_list" = "yes" ; then
6706         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
6707         ld64_symbols=qemu-plugins-ld64.symbols
6708         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
6709         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
6710             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
6711     else
6712         error_exit \
6713             "If \$plugins=yes, either \$ld_dynamic_list or " \
6714             "\$ld_exported_symbols_list should have been set to 'yes'."
6715     fi
6716 fi
6717
6718 if test -n "$gdb_bin" ; then
6719     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
6720 fi
6721
6722 if test "$secret_keyring" = "yes" ; then
6723   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
6724 fi
6725
6726 echo "ROMS=$roms" >> $config_host_mak
6727 echo "MAKE=$make" >> $config_host_mak
6728 echo "PYTHON=$python" >> $config_host_mak
6729 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
6730 echo "MESON=$meson" >> $config_host_mak
6731 echo "NINJA=$ninja" >> $config_host_mak
6732 echo "CC=$cc" >> $config_host_mak
6733 if $iasl -h > /dev/null 2>&1; then
6734   echo "CONFIG_IASL=$iasl" >> $config_host_mak
6735 fi
6736 echo "CXX=$cxx" >> $config_host_mak
6737 echo "OBJCC=$objcc" >> $config_host_mak
6738 echo "AR=$ar" >> $config_host_mak
6739 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
6740 echo "AS=$as" >> $config_host_mak
6741 echo "CCAS=$ccas" >> $config_host_mak
6742 echo "CPP=$cpp" >> $config_host_mak
6743 echo "OBJCOPY=$objcopy" >> $config_host_mak
6744 echo "LD=$ld" >> $config_host_mak
6745 echo "RANLIB=$ranlib" >> $config_host_mak
6746 echo "NM=$nm" >> $config_host_mak
6747 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
6748 echo "WINDRES=$windres" >> $config_host_mak
6749 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
6750 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
6751 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
6752 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
6753 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
6754 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
6755 echo "LDFLAGS_NOPIE=$LDFLAGS_NOPIE" >> $config_host_mak
6756 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
6757 echo "EXESUF=$EXESUF" >> $config_host_mak
6758 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
6759 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
6760 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
6761 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
6762 if test "$gcov" = "yes" ; then
6763   echo "CONFIG_GCOV=y" >> $config_host_mak
6764 fi
6765
6766 if test "$fuzzing" != "no"; then
6767     echo "CONFIG_FUZZ=y" >> $config_host_mak
6768 fi
6769 echo "FUZZ_EXE_LDFLAGS=$FUZZ_EXE_LDFLAGS" >> $config_host_mak
6770
6771 if test "$rng_none" = "yes"; then
6772   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
6773 fi
6774
6775 # use included Linux headers
6776 if test "$linux" = "yes" ; then
6777   mkdir -p linux-headers
6778   case "$cpu" in
6779   i386|x86_64|x32)
6780     linux_arch=x86
6781     ;;
6782   ppc|ppc64|ppc64le)
6783     linux_arch=powerpc
6784     ;;
6785   s390x)
6786     linux_arch=s390
6787     ;;
6788   aarch64)
6789     linux_arch=arm64
6790     ;;
6791   mips64)
6792     linux_arch=mips
6793     ;;
6794   *)
6795     # For most CPUs the kernel architecture name and QEMU CPU name match.
6796     linux_arch="$cpu"
6797     ;;
6798   esac
6799     # For non-KVM architectures we will not have asm headers
6800     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
6801       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
6802     fi
6803 fi
6804
6805 for target in $target_list; do
6806     target_dir="$target"
6807     target_name=$(echo $target | cut -d '-' -f 1)
6808     mkdir -p $target_dir
6809     case $target in
6810         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
6811         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
6812     esac
6813 done
6814
6815 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
6816 if test "$default_targets" = "yes"; then
6817   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
6818 fi
6819
6820 if test "$numa" = "yes"; then
6821   echo "CONFIG_NUMA=y" >> $config_host_mak
6822   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
6823 fi
6824
6825 if test "$ccache_cpp2" = "yes"; then
6826   echo "export CCACHE_CPP2=y" >> $config_host_mak
6827 fi
6828
6829 if test "$safe_stack" = "yes"; then
6830   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
6831 fi
6832
6833 # If we're using a separate build tree, set it up now.
6834 # DIRS are directories which we simply mkdir in the build tree;
6835 # LINKS are things to symlink back into the source tree
6836 # (these can be both files and directories).
6837 # Caution: do not add files or directories here using wildcards. This
6838 # will result in problems later if a new file matching the wildcard is
6839 # added to the source tree -- nothing will cause configure to be rerun
6840 # so the build tree will be missing the link back to the new file, and
6841 # tests might fail. Prefer to keep the relevant files in their own
6842 # directory and symlink the directory instead.
6843 # UNLINK is used to remove symlinks from older development versions
6844 # that might get into the way when doing "git update" without doing
6845 # a "make distclean" in between.
6846 DIRS="tests tests/tcg tests/tcg/lm32 tests/qapi-schema tests/qtest/libqos"
6847 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
6848 DIRS="$DIRS docs docs/interop fsdev scsi"
6849 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
6850 DIRS="$DIRS roms/seabios"
6851 DIRS="$DIRS contrib/plugins/"
6852 LINKS="Makefile"
6853 LINKS="$LINKS tests/tcg/lm32/Makefile"
6854 LINKS="$LINKS tests/tcg/Makefile.target"
6855 LINKS="$LINKS pc-bios/optionrom/Makefile"
6856 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
6857 LINKS="$LINKS roms/seabios/Makefile"
6858 LINKS="$LINKS pc-bios/qemu-icon.bmp"
6859 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
6860 LINKS="$LINKS tests/acceptance tests/data"
6861 LINKS="$LINKS tests/qemu-iotests/check"
6862 LINKS="$LINKS python"
6863 LINKS="$LINKS contrib/plugins/Makefile "
6864 UNLINK="pc-bios/keymaps"
6865 for bios_file in \
6866     $source_path/pc-bios/*.bin \
6867     $source_path/pc-bios/*.elf \
6868     $source_path/pc-bios/*.lid \
6869     $source_path/pc-bios/*.rom \
6870     $source_path/pc-bios/*.dtb \
6871     $source_path/pc-bios/*.img \
6872     $source_path/pc-bios/openbios-* \
6873     $source_path/pc-bios/u-boot.* \
6874     $source_path/pc-bios/edk2-*.fd.bz2 \
6875     $source_path/pc-bios/palcode-*
6876 do
6877     LINKS="$LINKS pc-bios/$(basename $bios_file)"
6878 done
6879 mkdir -p $DIRS
6880 for f in $LINKS ; do
6881     if [ -e "$source_path/$f" ]; then
6882         symlink "$source_path/$f" "$f"
6883     fi
6884 done
6885 for f in $UNLINK ; do
6886     if [ -L "$f" ]; then
6887         rm -f "$f"
6888     fi
6889 done
6890
6891 (for i in $cross_cc_vars; do
6892   export $i
6893 done
6894 export target_list source_path use_containers
6895 $source_path/tests/tcg/configure.sh)
6896
6897 # temporary config to build submodules
6898 for rom in seabios; do
6899     config_mak=roms/$rom/config.mak
6900     echo "# Automatically generated by configure - do not modify" > $config_mak
6901     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
6902     echo "AS=$as" >> $config_mak
6903     echo "CCAS=$ccas" >> $config_mak
6904     echo "CC=$cc" >> $config_mak
6905     echo "BCC=bcc" >> $config_mak
6906     echo "CPP=$cpp" >> $config_mak
6907     echo "OBJCOPY=objcopy" >> $config_mak
6908     echo "IASL=$iasl" >> $config_mak
6909     echo "LD=$ld" >> $config_mak
6910     echo "RANLIB=$ranlib" >> $config_mak
6911 done
6912
6913 # set up qemu-iotests in this build directory
6914 iotests_common_env="tests/qemu-iotests/common.env"
6915
6916 echo "# Automatically generated by configure - do not modify" > "$iotests_common_env"
6917 echo >> "$iotests_common_env"
6918 echo "export PYTHON='$python'" >> "$iotests_common_env"
6919
6920 if test "$skip_meson" = no; then
6921 cross="config-meson.cross.new"
6922 meson_quote() {
6923     echo "'$(echo $* | sed "s/ /','/g")'"
6924 }
6925
6926 echo "# Automatically generated by configure - do not modify" > $cross
6927 echo "[properties]" >> $cross
6928 test -z "$cxx" && echo "link_language = 'c'" >> $cross
6929 echo "[built-in options]" >> $cross
6930 echo "c_args = [${CFLAGS:+$(meson_quote $CFLAGS)}]" >> $cross
6931 echo "cpp_args = [${CXXFLAGS:+$(meson_quote $CXXFLAGS)}]" >> $cross
6932 echo "c_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6933 echo "cpp_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6934 echo "[binaries]" >> $cross
6935 echo "c = [$(meson_quote $cc)]" >> $cross
6936 test -n "$cxx" && echo "cpp = [$(meson_quote $cxx)]" >> $cross
6937 echo "ar = [$(meson_quote $ar)]" >> $cross
6938 echo "nm = [$(meson_quote $nm)]" >> $cross
6939 echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
6940 echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
6941 if has $sdl2_config; then
6942   echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
6943 fi
6944 echo "strip = [$(meson_quote $strip)]" >> $cross
6945 echo "windres = [$(meson_quote $windres)]" >> $cross
6946 if test -n "$cross_prefix"; then
6947     cross_arg="--cross-file config-meson.cross"
6948     echo "[host_machine]" >> $cross
6949     if test "$mingw32" = "yes" ; then
6950         echo "system = 'windows'" >> $cross
6951     fi
6952     if test "$linux" = "yes" ; then
6953         echo "system = 'linux'" >> $cross
6954     fi
6955     case "$ARCH" in
6956         i386|x86_64)
6957             echo "cpu_family = 'x86'" >> $cross
6958             ;;
6959         ppc64le)
6960             echo "cpu_family = 'ppc64'" >> $cross
6961             ;;
6962         *)
6963             echo "cpu_family = '$ARCH'" >> $cross
6964             ;;
6965     esac
6966     echo "cpu = '$cpu'" >> $cross
6967     if test "$bigendian" = "yes" ; then
6968         echo "endian = 'big'" >> $cross
6969     else
6970         echo "endian = 'little'" >> $cross
6971     fi
6972 else
6973     cross_arg="--native-file config-meson.cross"
6974 fi
6975 mv $cross config-meson.cross
6976
6977 rm -rf meson-private meson-info meson-logs
6978 unset staticpic
6979 if ! version_ge "$($meson --version)" 0.56.0; then
6980   staticpic=$(if test "$pie" = yes; then echo true; else echo false; fi)
6981 fi
6982 NINJA=$ninja $meson setup \
6983         --prefix "$prefix" \
6984         --libdir "$libdir" \
6985         --libexecdir "$libexecdir" \
6986         --bindir "$bindir" \
6987         --includedir "$includedir" \
6988         --datadir "$datadir" \
6989         --mandir "$mandir" \
6990         --sysconfdir "$sysconfdir" \
6991         --localedir "$localedir" \
6992         --localstatedir "$local_statedir" \
6993         -Ddocdir="$docdir" \
6994         -Dqemu_firmwarepath="$firmwarepath" \
6995         -Dqemu_suffix="$qemu_suffix" \
6996         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
6997         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
6998         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
6999         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
7000         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
7001         ${staticpic:+-Db_staticpic=$staticpic} \
7002         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
7003         -Dmalloc=$malloc -Dmalloc_trim=$malloc_trim -Dsparse=$sparse \
7004         -Dkvm=$kvm -Dhax=$hax -Dwhpx=$whpx -Dhvf=$hvf \
7005         -Dxen=$xen -Dxen_pci_passthrough=$xen_pci_passthrough -Dtcg=$tcg \
7006         -Dcocoa=$cocoa -Dmpath=$mpath -Dsdl=$sdl -Dsdl_image=$sdl_image \
7007         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
7008         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f -Dvirtiofsd=$virtiofsd \
7009         -Dcapstone=$capstone -Dslirp=$slirp -Dfdt=$fdt \
7010         -Diconv=$iconv -Dcurses=$curses -Dlibudev=$libudev\
7011         -Ddocs=$docs -Dsphinx_build=$sphinx_build -Dinstall_blobs=$blobs \
7012         -Dvhost_user_blk_server=$vhost_user_blk_server \
7013         -Dfuse=$fuse -Dfuse_lseek=$fuse_lseek \
7014         $cross_arg \
7015         "$PWD" "$source_path"
7016
7017 if test "$?" -ne 0 ; then
7018     error_exit "meson setup failed"
7019 fi
7020 fi
7021
7022 if test -n "${deprecated_features}"; then
7023     echo "Warning, deprecated features enabled."
7024     echo "Please see docs/system/deprecated.rst"
7025     echo "  features: ${deprecated_features}"
7026 fi
7027
7028 # Save the configure command line for later reuse.
7029 cat <<EOD >config.status
7030 #!/bin/sh
7031 # Generated by configure.
7032 # Run this file to recreate the current configuration.
7033 # Compiler output produced by configure, useful for debugging
7034 # configure, is in config.log if it exists.
7035 EOD
7036
7037 preserve_env() {
7038     envname=$1
7039
7040     eval envval=\$$envname
7041
7042     if test -n "$envval"
7043     then
7044         echo "$envname='$envval'" >> config.status
7045         echo "export $envname" >> config.status
7046     else
7047         echo "unset $envname" >> config.status
7048     fi
7049 }
7050
7051 # Preserve various env variables that influence what
7052 # features/build target configure will detect
7053 preserve_env AR
7054 preserve_env AS
7055 preserve_env CC
7056 preserve_env CPP
7057 preserve_env CXX
7058 preserve_env INSTALL
7059 preserve_env LD
7060 preserve_env LD_LIBRARY_PATH
7061 preserve_env LIBTOOL
7062 preserve_env MAKE
7063 preserve_env NM
7064 preserve_env OBJCOPY
7065 preserve_env PATH
7066 preserve_env PKG_CONFIG
7067 preserve_env PKG_CONFIG_LIBDIR
7068 preserve_env PKG_CONFIG_PATH
7069 preserve_env PYTHON
7070 preserve_env SDL2_CONFIG
7071 preserve_env SMBD
7072 preserve_env STRIP
7073 preserve_env WINDRES
7074
7075 printf "exec" >>config.status
7076 for i in "$0" "$@"; do
7077   test "$i" = --skip-meson || printf " '%s'" "$i" >>config.status
7078 done
7079 echo ' "$@"' >>config.status
7080 chmod +x config.status
7081
7082 rm -r "$TMPDIR1"