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