configure

   1 #!/bin/sh
   2 #
   3 # qemu configure script (c) 2003 Fabrice Bellard
   4 #
   5
   6 # Unset some variables known to interfere with behavior of common tools,
   7 # just as autoconf does.
   8 CLICOLOR_FORCE= GREP_OPTIONS=
   9 unset CLICOLOR_FORCE GREP_OPTIONS
  10
  11 # Don't allow CCACHE, if present, to use cached results of compile tests!
  12 export CCACHE_RECACHE=yes
  13
  14 # make source path absolute
  15 source_path=$(cd "$(dirname -- "$0")"; pwd)
  16
  17 if test "$PWD" = "$source_path"
  18 then
  19     echo "Using './build' as the directory for build output"
  20
  21     MARKER=build/auto-created-by-configure
  22
  23     if test -e build
  24     then
  25         if test -f $MARKER
  26         then
  27            rm -rf build
  28         else
  29             echo "ERROR: ./build dir already exists and was not previously created by configure"
  30             exit 1
  31         fi
  32     fi
  33
  34     mkdir build
  35     touch $MARKER
  36
  37     cat > GNUmakefile <<'EOF'
  38 # This file is auto-generated by configure to support in-source tree
  39 # 'make' command invocation
  40
  41 ifeq ($(MAKECMDGOALS),)
  42 recurse: all
  43 endif
  44
  45 .NOTPARALLEL: %
  46 %: force
  47         @echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
  48         @$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
  49         @if test "$(MAKECMDGOALS)" = "distclean" && \
  50             test -e build/auto-created-by-configure ; \
  51         then \
  52             rm -rf build GNUmakefile ; \
  53         fi
  54 force: ;
  55 .PHONY: force
  56 GNUmakefile: ;
  57
  58 EOF
  59     cd build
  60     exec $source_path/configure "$@"
  61 fi
  62
  63 # Temporary directory used for files created while
  64 # configure runs. Since it is in the build directory
  65 # we can safely blow away any previous version of it
  66 # (and we need not jump through hoops to try to delete
  67 # it when configure exits.)
  68 TMPDIR1="config-temp"
  69 rm -rf "${TMPDIR1}"
  70 mkdir -p "${TMPDIR1}"
  71 if [ $? -ne 0 ]; then
  72     echo "ERROR: failed to create temporary directory"
  73     exit 1
  74 fi
  75
  76 TMPB="qemu-conf"
  77 TMPC="${TMPDIR1}/${TMPB}.c"
  78 TMPO="${TMPDIR1}/${TMPB}.o"
  79 TMPCXX="${TMPDIR1}/${TMPB}.cxx"
  80 TMPE="${TMPDIR1}/${TMPB}.exe"
  81 TMPTXT="${TMPDIR1}/${TMPB}.txt"
  82
  83 rm -f config.log
  84
  85 # Print a helpful header at the top of config.log
  86 echo "# QEMU configure log $(date)" >> config.log
  87 printf "# Configured with:" >> config.log
  88 printf " '%s'" "$0" "$@" >> config.log
  89 echo >> config.log
  90 echo "#" >> config.log
  91
  92 print_error() {
  93     (echo
  94     echo "ERROR: $1"
  95     while test -n "$2"; do
  96         echo "       $2"
  97         shift
  98     done
  99     echo) >&2
 100 }
 101
 102 error_exit() {
 103     print_error "$@"
 104     exit 1
 105 }
 106
 107 do_compiler() {
 108     # Run the compiler, capturing its output to the log. First argument
 109     # is compiler binary to execute.
 110     local compiler="$1"
 111     shift
 112     if test -n "$BASH_VERSION"; then eval '
 113         echo >>config.log "
 114 funcs: ${FUNCNAME[*]}
 115 lines: ${BASH_LINENO[*]}"
 116     '; fi
 117     echo $compiler "$@" >> config.log
 118     $compiler "$@" >> config.log 2>&1 || return $?
 119     # Test passed. If this is an --enable-werror build, rerun
 120     # the test with -Werror and bail out if it fails. This
 121     # makes warning-generating-errors in configure test code
 122     # obvious to developers.
 123     if test "$werror" != "yes"; then
 124         return 0
 125     fi
 126     # Don't bother rerunning the compile if we were already using -Werror
 127     case "$*" in
 128         *-Werror*)
 129            return 0
 130         ;;
 131     esac
 132     echo $compiler -Werror "$@" >> config.log
 133     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 134     error_exit "configure test passed without -Werror but failed with -Werror." \
 135         "This is probably a bug in the configure script. The failing command" \
 136         "will be at the bottom of config.log." \
 137         "You can run configure with --disable-werror to bypass this check."
 138 }
 139
 140 do_cc() {
 141     do_compiler "$cc" "$@"
 142 }
 143
 144 do_cxx() {
 145     do_compiler "$cxx" "$@"
 146 }
 147
 148 # Append $2 to the variable named $1, with space separation
 149 add_to() {
 150     eval $1=\${$1:+\"\$$1 \"}\$2
 151 }
 152
 153 update_cxxflags() {
 154     # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
 155     # options which some versions of GCC's C++ compiler complain about
 156     # because they only make sense for C programs.
 157     QEMU_CXXFLAGS="$QEMU_CXXFLAGS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
 158     CONFIGURE_CXXFLAGS=$(echo "$CONFIGURE_CFLAGS" | sed s/-std=gnu99/-std=gnu++11/)
 159     for arg in $QEMU_CFLAGS; do
 160         case $arg in
 161             -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
 162             -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
 163                 ;;
 164             *)
 165                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
 166                 ;;
 167         esac
 168     done
 169 }
 170
 171 compile_object() {
 172   local_cflags="$1"
 173   do_cc $CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 174 }
 175
 176 compile_prog() {
 177   local_cflags="$1"
 178   local_ldflags="$2"
 179   do_cc $CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 180       $LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 181 }
 182
 183 # symbolically link $1 to $2.  Portable version of "ln -sf".
 184 symlink() {
 185   rm -rf "$2"
 186   mkdir -p "$(dirname "$2")"
 187   ln -s "$1" "$2"
 188 }
 189
 190 # check whether a command is available to this shell (may be either an
 191 # executable or a builtin)
 192 has() {
 193     type "$1" >/dev/null 2>&1
 194 }
 195
 196 version_ge () {
 197     local_ver1=`echo $1 | tr . ' '`
 198     local_ver2=`echo $2 | tr . ' '`
 199     while true; do
 200         set x $local_ver1
 201         local_first=${2-0}
 202         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 203         shift ${2:+2}
 204         local_ver1=$*
 205         set x $local_ver2
 206         # the second argument finished, the first must be greater or equal
 207         test $# = 1 && return 0
 208         test $local_first -lt $2 && return 1
 209         test $local_first -gt $2 && return 0
 210         shift ${2:+2}
 211         local_ver2=$*
 212     done
 213 }
 214
 215 have_backend () {
 216     echo "$trace_backends" | grep "$1" >/dev/null
 217 }
 218
 219 glob() {
 220     eval test -z '"${1#'"$2"'}"'
 221 }
 222
 223 ld_has() {
 224     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 225 }
 226
 227 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 228 then
 229   error_exit "main directory cannot contain spaces nor colons"
 230 fi
 231
 232 # default parameters
 233 cpu=""
 234 iasl="iasl"
 235 interp_prefix="/usr/gnemul/qemu-%M"
 236 static="no"
 237 cross_prefix=""
 238 audio_drv_list=""
 239 block_drv_rw_whitelist=""
 240 block_drv_ro_whitelist=""
 241 host_cc="cc"
 242 audio_win_int=""
 243 libs_qga=""
 244 debug_info="yes"
 245 stack_protector=""
 246 safe_stack=""
 247 use_containers="yes"
 248 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 249
 250 if test -e "$source_path/.git"
 251 then
 252     git_update=yes
 253     git_submodules="ui/keycodemapdb"
 254     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
 255     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
 256 else
 257     git_update=no
 258     git_submodules=""
 259
 260     if ! test -f "$source_path/ui/keycodemapdb/README"
 261     then
 262         echo
 263         echo "ERROR: missing file $source_path/ui/keycodemapdb/README"
 264         echo
 265         echo "This is not a GIT checkout but module content appears to"
 266         echo "be missing. Do not use 'git archive' or GitHub download links"
 267         echo "to acquire QEMU source archives. Non-GIT builds are only"
 268         echo "supported with source archives linked from:"
 269         echo
 270         echo "  https://www.qemu.org/download/#source"
 271         echo
 272         echo "Developers working with GIT can use scripts/archive-source.sh"
 273         echo "if they need to create valid source archives."
 274         echo
 275         exit 1
 276     fi
 277 fi
 278 git="git"
 279
 280 # Don't accept a target_list environment variable.
 281 unset target_list
 282 unset target_list_exclude
 283
 284 # Default value for a variable defining feature "foo".
 285 #  * foo="no"  feature will only be used if --enable-foo arg is given
 286 #  * foo=""    feature will be searched for, and if found, will be used
 287 #              unless --disable-foo is given
 288 #  * foo="yes" this value will only be set by --enable-foo flag.
 289 #              feature will searched for,
 290 #              if not found, configure exits with error
 291 #
 292 # Always add --enable-foo and --disable-foo command line args.
 293 # Distributions want to ensure that several features are compiled in, and it
 294 # is impossible without a --enable-foo that exits if a feature is not found.
 295
 296 brlapi=""
 297 curl=""
 298 iconv="auto"
 299 curses="auto"
 300 docs="auto"
 301 fdt="auto"
 302 netmap="no"
 303 sdl="auto"
 304 sdl_image="auto"
 305 virtiofsd="auto"
 306 virtfs=""
 307 libudev="auto"
 308 mpath="auto"
 309 vnc="enabled"
 310 sparse="auto"
 311 vde=""
 312 vnc_sasl="auto"
 313 vnc_jpeg="auto"
 314 vnc_png="auto"
 315 xkbcommon="auto"
 316 xen=""
 317 xen_ctrl_version=""
 318 xen_pci_passthrough="auto"
 319 linux_aio=""
 320 linux_io_uring=""
 321 cap_ng=""
 322 attr=""
 323 libattr=""
 324 xfs=""
 325 tcg="enabled"
 326 membarrier=""
 327 vhost_net=""
 328 vhost_crypto=""
 329 vhost_scsi=""
 330 vhost_vsock=""
 331 vhost_user=""
 332 vhost_user_fs=""
 333 kvm="auto"
 334 hax="auto"
 335 hvf="auto"
 336 whpx="auto"
 337 rdma=""
 338 pvrdma=""
 339 gprof="no"
 340 debug_tcg="no"
 341 debug="no"
 342 sanitizers="no"
 343 tsan="no"
 344 fortify_source=""
 345 strip_opt="yes"
 346 tcg_interpreter="no"
 347 bigendian="no"
 348 mingw32="no"
 349 gcov="no"
 350 EXESUF=""
 351 HOST_DSOSUF=".so"
 352 modules="no"
 353 module_upgrades="no"
 354 prefix="/usr/local"
 355 qemu_suffix="qemu"
 356 slirp="auto"
 357 oss_lib=""
 358 bsd="no"
 359 linux="no"
 360 solaris="no"
 361 profiler="no"
 362 cocoa="auto"
 363 softmmu="yes"
 364 linux_user="no"
 365 bsd_user="no"
 366 blobs="true"
 367 pkgversion=""
 368 pie=""
 369 qom_cast_debug="yes"
 370 trace_backends="log"
 371 trace_file="trace"
 372 spice=""
 373 rbd=""
 374 smartcard=""
 375 u2f="auto"
 376 libusb=""
 377 usb_redir=""
 378 opengl=""
 379 opengl_dmabuf="no"
 380 cpuid_h="no"
 381 avx2_opt=""
 382 capstone="auto"
 383 lzo=""
 384 snappy=""
 385 bzip2=""
 386 lzfse=""
 387 zstd=""
 388 guest_agent=""
 389 guest_agent_with_vss="no"
 390 guest_agent_ntddscsi="no"
 391 guest_agent_msi=""
 392 vss_win32_sdk=""
 393 win_sdk="no"
 394 want_tools=""
 395 libiscsi=""
 396 libnfs=""
 397 coroutine=""
 398 coroutine_pool=""
 399 debug_stack_usage="no"
 400 crypto_afalg="no"
 401 seccomp=""
 402 glusterfs=""
 403 glusterfs_xlator_opt="no"
 404 glusterfs_discard="no"
 405 glusterfs_fallocate="no"
 406 glusterfs_zerofill="no"
 407 glusterfs_ftruncate_has_stat="no"
 408 glusterfs_iocb_has_stat="no"
 409 gtk=""
 410 gtk_gl="no"
 411 tls_priority="NORMAL"
 412 gnutls=""
 413 nettle=""
 414 nettle_xts="no"
 415 gcrypt=""
 416 gcrypt_hmac="no"
 417 gcrypt_xts="no"
 418 qemu_private_xts="yes"
 419 auth_pam=""
 420 vte=""
 421 virglrenderer=""
 422 tpm=""
 423 libssh=""
 424 live_block_migration="yes"
 425 numa=""
 426 tcmalloc="no"
 427 jemalloc="no"
 428 replication="yes"
 429 bochs="yes"
 430 cloop="yes"
 431 dmg="yes"
 432 qcow1="yes"
 433 vdi="yes"
 434 vvfat="yes"
 435 qed="yes"
 436 parallels="yes"
 437 sheepdog="no"
 438 libxml2=""
 439 debug_mutex="no"
 440 libpmem=""
 441 default_devices="yes"
 442 plugins="no"
 443 fuzzing="no"
 444 rng_none="no"
 445 secret_keyring=""
 446 libdaxctl=""
 447 meson=""
 448 ninja=""
 449 skip_meson=no
 450 gettext=""
 451
 452 bogus_os="no"
 453 malloc_trim="auto"
 454
 455 # parse CC options first
 456 for opt do
 457   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 458   case "$opt" in
 459   --cross-prefix=*) cross_prefix="$optarg"
 460   ;;
 461   --cc=*) CC="$optarg"
 462   ;;
 463   --cxx=*) CXX="$optarg"
 464   ;;
 465   --cpu=*) cpu="$optarg"
 466   ;;
 467   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 468                     QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 469   ;;
 470   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 471   ;;
 472   --extra-ldflags=*) QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 473                      EXTRA_LDFLAGS="$optarg"
 474   ;;
 475   --enable-debug-info) debug_info="yes"
 476   ;;
 477   --disable-debug-info) debug_info="no"
 478   ;;
 479   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 480   ;;
 481   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 482                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 483                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 484   ;;
 485   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 486                 cc_archs="$cc_archs $cc_arch"
 487                 eval "cross_cc_${cc_arch}=\$optarg"
 488                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 489   ;;
 490   esac
 491 done
 492 # OS specific
 493 # Using uname is really, really broken.  Once we have the right set of checks
 494 # we can eliminate its usage altogether.
 495
 496 # Preferred compiler:
 497 #  ${CC} (if set)
 498 #  ${cross_prefix}gcc (if cross-prefix specified)
 499 #  system compiler
 500 if test -z "${CC}${cross_prefix}"; then
 501   cc="$host_cc"
 502 else
 503   cc="${CC-${cross_prefix}gcc}"
 504 fi
 505
 506 if test -z "${CXX}${cross_prefix}"; then
 507   cxx="c++"
 508 else
 509   cxx="${CXX-${cross_prefix}g++}"
 510 fi
 511
 512 ar="${AR-${cross_prefix}ar}"
 513 as="${AS-${cross_prefix}as}"
 514 ccas="${CCAS-$cc}"
 515 cpp="${CPP-$cc -E}"
 516 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 517 ld="${LD-${cross_prefix}ld}"
 518 ranlib="${RANLIB-${cross_prefix}ranlib}"
 519 nm="${NM-${cross_prefix}nm}"
 520 strip="${STRIP-${cross_prefix}strip}"
 521 windres="${WINDRES-${cross_prefix}windres}"
 522 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 523 query_pkg_config() {
 524     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 525 }
 526 pkg_config=query_pkg_config
 527 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 528
 529 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 530 ARFLAGS="${ARFLAGS-rv}"
 531
 532 # default flags for all hosts
 533 # We use -fwrapv to tell the compiler that we require a C dialect where
 534 # left shift of signed integers is well defined and has the expected
 535 # 2s-complement style results. (Both clang and gcc agree that it
 536 # provides these semantics.)
 537 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
 538 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 539 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 540 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 541
 542 # Flags that are needed during configure but later taken care of by Meson
 543 CONFIGURE_CFLAGS="-std=gnu99 -Wall"
 544 CONFIGURE_LDFLAGS=
 545
 546
 547 check_define() {
 548 cat > $TMPC <<EOF
 549 #if !defined($1)
 550 #error $1 not defined
 551 #endif
 552 int main(void) { return 0; }
 553 EOF
 554   compile_object
 555 }
 556
 557 check_include() {
 558 cat > $TMPC <<EOF
 559 #include <$1>
 560 int main(void) { return 0; }
 561 EOF
 562   compile_object
 563 }
 564
 565 write_c_skeleton() {
 566     cat > $TMPC <<EOF
 567 int main(void) { return 0; }
 568 EOF
 569 }
 570
 571 write_c_fuzzer_skeleton() {
 572     cat > $TMPC <<EOF
 573 #include <stdint.h>
 574 #include <sys/types.h>
 575 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 576 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 577 EOF
 578 }
 579
 580 if check_define __linux__ ; then
 581   targetos="Linux"
 582 elif check_define _WIN32 ; then
 583   targetos='MINGW32'
 584 elif check_define __OpenBSD__ ; then
 585   targetos='OpenBSD'
 586 elif check_define __sun__ ; then
 587   targetos='SunOS'
 588 elif check_define __HAIKU__ ; then
 589   targetos='Haiku'
 590 elif check_define __FreeBSD__ ; then
 591   targetos='FreeBSD'
 592 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 593   targetos='GNU/kFreeBSD'
 594 elif check_define __DragonFly__ ; then
 595   targetos='DragonFly'
 596 elif check_define __NetBSD__; then
 597   targetos='NetBSD'
 598 elif check_define __APPLE__; then
 599   targetos='Darwin'
 600 else
 601   # This is a fatal error, but don't report it yet, because we
 602   # might be going to just print the --help text, or it might
 603   # be the result of a missing compiler.
 604   targetos='bogus'
 605   bogus_os='yes'
 606 fi
 607
 608 # Some host OSes need non-standard checks for which CPU to use.
 609 # Note that these checks are broken for cross-compilation: if you're
 610 # cross-compiling to one of these OSes then you'll need to specify
 611 # the correct CPU with the --cpu option.
 612 case $targetos in
 613 Darwin)
 614   # on Leopard most of the system is 32-bit, so we have to ask the kernel if we can
 615   # run 64-bit userspace code.
 616   # If the user didn't specify a CPU explicitly and the kernel says this is
 617   # 64 bit hw, then assume x86_64. Otherwise fall through to the usual detection code.
 618   if test -z "$cpu" && test "$(sysctl -n hw.optional.x86_64)" = "1"; then
 619     cpu="x86_64"
 620   fi
 621   HOST_DSOSUF=".dylib"
 622   ;;
 623 SunOS)
 624   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 625   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 626     cpu="x86_64"
 627   fi
 628 esac
 629
 630 if test ! -z "$cpu" ; then
 631   # command line argument
 632   :
 633 elif check_define __i386__ ; then
 634   cpu="i386"
 635 elif check_define __x86_64__ ; then
 636   if check_define __ILP32__ ; then
 637     cpu="x32"
 638   else
 639     cpu="x86_64"
 640   fi
 641 elif check_define __sparc__ ; then
 642   if check_define __arch64__ ; then
 643     cpu="sparc64"
 644   else
 645     cpu="sparc"
 646   fi
 647 elif check_define _ARCH_PPC ; then
 648   if check_define _ARCH_PPC64 ; then
 649     if check_define _LITTLE_ENDIAN ; then
 650       cpu="ppc64le"
 651     else
 652       cpu="ppc64"
 653     fi
 654   else
 655     cpu="ppc"
 656   fi
 657 elif check_define __mips__ ; then
 658   cpu="mips"
 659 elif check_define __s390__ ; then
 660   if check_define __s390x__ ; then
 661     cpu="s390x"
 662   else
 663     cpu="s390"
 664   fi
 665 elif check_define __riscv ; then
 666   if check_define _LP64 ; then
 667     cpu="riscv64"
 668   else
 669     cpu="riscv32"
 670   fi
 671 elif check_define __arm__ ; then
 672   cpu="arm"
 673 elif check_define __aarch64__ ; then
 674   cpu="aarch64"
 675 else
 676   cpu=$(uname -m)
 677 fi
 678
 679 ARCH=
 680 # Normalise host CPU name and set ARCH.
 681 # Note that this case should only have supported host CPUs, not guests.
 682 case "$cpu" in
 683   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 684   ;;
 685   ppc64le)
 686     ARCH="ppc64"
 687   ;;
 688   i386|i486|i586|i686|i86pc|BePC)
 689     cpu="i386"
 690   ;;
 691   x86_64|amd64)
 692     cpu="x86_64"
 693   ;;
 694   armv*b|armv*l|arm)
 695     cpu="arm"
 696   ;;
 697   aarch64)
 698     cpu="aarch64"
 699   ;;
 700   mips*)
 701     cpu="mips"
 702   ;;
 703   sparc|sun4[cdmuv])
 704     cpu="sparc"
 705   ;;
 706   *)
 707     # This will result in either an error or falling back to TCI later
 708     ARCH=unknown
 709   ;;
 710 esac
 711 if test -z "$ARCH"; then
 712   ARCH="$cpu"
 713 fi
 714
 715 # OS specific
 716
 717 case $targetos in
 718 MINGW32*)
 719   mingw32="yes"
 720   vhost_user="no"
 721   audio_possible_drivers="dsound sdl"
 722   if check_include dsound.h; then
 723     audio_drv_list="dsound"
 724   else
 725     audio_drv_list=""
 726   fi
 727   supported_os="yes"
 728   pie="no"
 729 ;;
 730 GNU/kFreeBSD)
 731   bsd="yes"
 732   audio_drv_list="oss try-sdl"
 733   audio_possible_drivers="oss sdl pa"
 734 ;;
 735 FreeBSD)
 736   bsd="yes"
 737   make="${MAKE-gmake}"
 738   audio_drv_list="oss try-sdl"
 739   audio_possible_drivers="oss sdl pa"
 740   # needed for kinfo_getvmmap(3) in libutil.h
 741   netmap=""  # enable netmap autodetect
 742 ;;
 743 DragonFly)
 744   bsd="yes"
 745   make="${MAKE-gmake}"
 746   audio_drv_list="oss try-sdl"
 747   audio_possible_drivers="oss sdl pa"
 748 ;;
 749 NetBSD)
 750   bsd="yes"
 751   make="${MAKE-gmake}"
 752   audio_drv_list="oss try-sdl"
 753   audio_possible_drivers="oss sdl"
 754   oss_lib="-lossaudio"
 755 ;;
 756 OpenBSD)
 757   bsd="yes"
 758   make="${MAKE-gmake}"
 759   audio_drv_list="try-sdl"
 760   audio_possible_drivers="sdl"
 761 ;;
 762 Darwin)
 763   bsd="yes"
 764   darwin="yes"
 765   if [ "$cpu" = "x86_64" ] ; then
 766     QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
 767     QEMU_LDFLAGS="-arch x86_64 $QEMU_LDFLAGS"
 768   fi
 769   cocoa="enabled"
 770   audio_drv_list="coreaudio try-sdl"
 771   audio_possible_drivers="coreaudio sdl"
 772   QEMU_LDFLAGS="-framework CoreFoundation -framework IOKit $QEMU_LDFLAGS"
 773   # Disable attempts to use ObjectiveC features in os/object.h since they
 774   # won't work when we're compiling with gcc as a C compiler.
 775   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 776 ;;
 777 SunOS)
 778   solaris="yes"
 779   make="${MAKE-gmake}"
 780   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 781   if test -f /usr/include/sys/soundcard.h ; then
 782     audio_drv_list="oss try-sdl"
 783   fi
 784   audio_possible_drivers="oss sdl"
 785 # needed for CMSG_ macros in sys/socket.h
 786   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 787 # needed for TIOCWIN* defines in termios.h
 788   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 789 ;;
 790 Haiku)
 791   haiku="yes"
 792   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -DBSD_SOURCE $QEMU_CFLAGS"
 793 ;;
 794 Linux)
 795   audio_drv_list="try-pa oss"
 796   audio_possible_drivers="oss alsa sdl pa"
 797   linux="yes"
 798   linux_user="yes"
 799 ;;
 800 esac
 801
 802 if [ "$bsd" = "yes" ] ; then
 803   if [ "$darwin" != "yes" ] ; then
 804     bsd_user="yes"
 805   fi
 806 fi
 807
 808 : ${make=${MAKE-make}}
 809
 810 # We prefer python 3.x. A bare 'python' is traditionally
 811 # python 2.x, but some distros have it as python 3.x, so
 812 # we check that too
 813 python=
 814 explicit_python=no
 815 for binary in "${PYTHON-python3}" python
 816 do
 817     if has "$binary"
 818     then
 819         python=$(command -v "$binary")
 820         break
 821     fi
 822 done
 823
 824
 825 # Check for ancillary tools used in testing
 826 genisoimage=
 827 for binary in genisoimage mkisofs
 828 do
 829     if has $binary
 830     then
 831         genisoimage=$(command -v "$binary")
 832         break
 833     fi
 834 done
 835
 836 : ${smbd=${SMBD-/usr/sbin/smbd}}
 837
 838 # Default objcc to clang if available, otherwise use CC
 839 if has clang; then
 840   objcc=clang
 841 else
 842   objcc="$cc"
 843 fi
 844
 845 if test "$mingw32" = "yes" ; then
 846   EXESUF=".exe"
 847   HOST_DSOSUF=".dll"
 848   # MinGW needs -mthreads for TLS and macro _MT.
 849   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 850   write_c_skeleton;
 851   prefix="/qemu"
 852   qemu_suffix=""
 853   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 854 fi
 855
 856 werror=""
 857
 858 for opt do
 859   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 860   case "$opt" in
 861   --help|-h) show_help=yes
 862   ;;
 863   --version|-V) exec cat $source_path/VERSION
 864   ;;
 865   --prefix=*) prefix="$optarg"
 866   ;;
 867   --interp-prefix=*) interp_prefix="$optarg"
 868   ;;
 869   --cross-prefix=*)
 870   ;;
 871   --cc=*)
 872   ;;
 873   --host-cc=*) host_cc="$optarg"
 874   ;;
 875   --cxx=*)
 876   ;;
 877   --iasl=*) iasl="$optarg"
 878   ;;
 879   --objcc=*) objcc="$optarg"
 880   ;;
 881   --make=*) make="$optarg"
 882   ;;
 883   --install=*)
 884   ;;
 885   --python=*) python="$optarg" ; explicit_python=yes
 886   ;;
 887   --sphinx-build=*) sphinx_build="$optarg"
 888   ;;
 889   --skip-meson) skip_meson=yes
 890   ;;
 891   --meson=*) meson="$optarg"
 892   ;;
 893   --ninja=*) ninja="$optarg"
 894   ;;
 895   --smbd=*) smbd="$optarg"
 896   ;;
 897   --extra-cflags=*)
 898   ;;
 899   --extra-cxxflags=*)
 900   ;;
 901   --extra-ldflags=*)
 902   ;;
 903   --enable-debug-info)
 904   ;;
 905   --disable-debug-info)
 906   ;;
 907   --cross-cc-*)
 908   ;;
 909   --enable-modules)
 910       modules="yes"
 911   ;;
 912   --disable-modules)
 913       modules="no"
 914   ;;
 915   --disable-module-upgrades) module_upgrades="no"
 916   ;;
 917   --enable-module-upgrades) module_upgrades="yes"
 918   ;;
 919   --cpu=*)
 920   ;;
 921   --target-list=*) target_list="$optarg"
 922                    if test "$target_list_exclude"; then
 923                        error_exit "Can't mix --target-list with --target-list-exclude"
 924                    fi
 925   ;;
 926   --target-list-exclude=*) target_list_exclude="$optarg"
 927                    if test "$target_list"; then
 928                        error_exit "Can't mix --target-list-exclude with --target-list"
 929                    fi
 930   ;;
 931   --enable-trace-backends=*) trace_backends="$optarg"
 932   ;;
 933   # XXX: backwards compatibility
 934   --enable-trace-backend=*) trace_backends="$optarg"
 935   ;;
 936   --with-trace-file=*) trace_file="$optarg"
 937   ;;
 938   --with-default-devices) default_devices="yes"
 939   ;;
 940   --without-default-devices) default_devices="no"
 941   ;;
 942   --enable-gprof) gprof="yes"
 943   ;;
 944   --enable-gcov) gcov="yes"
 945   ;;
 946   --static)
 947     static="yes"
 948     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 949   ;;
 950   --mandir=*) mandir="$optarg"
 951   ;;
 952   --bindir=*) bindir="$optarg"
 953   ;;
 954   --libdir=*) libdir="$optarg"
 955   ;;
 956   --libexecdir=*) libexecdir="$optarg"
 957   ;;
 958   --includedir=*) includedir="$optarg"
 959   ;;
 960   --datadir=*) datadir="$optarg"
 961   ;;
 962   --with-suffix=*) qemu_suffix="$optarg"
 963   ;;
 964   --docdir=*) docdir="$optarg"
 965   ;;
 966   --localedir=*) localedir="$optarg"
 967   ;;
 968   --sysconfdir=*) sysconfdir="$optarg"
 969   ;;
 970   --localstatedir=*) local_statedir="$optarg"
 971   ;;
 972   --firmwarepath=*) firmwarepath="$optarg"
 973   ;;
 974   --host=*|--build=*|\
 975   --disable-dependency-tracking|\
 976   --sbindir=*|--sharedstatedir=*|\
 977   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 978   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 979     # These switches are silently ignored, for compatibility with
 980     # autoconf-generated configure scripts. This allows QEMU's
 981     # configure to be used by RPM and similar macros that set
 982     # lots of directory switches by default.
 983   ;;
 984   --disable-sdl) sdl="disabled"
 985   ;;
 986   --enable-sdl) sdl="enabled"
 987   ;;
 988   --disable-sdl-image) sdl_image="disabled"
 989   ;;
 990   --enable-sdl-image) sdl_image="enabled"
 991   ;;
 992   --disable-qom-cast-debug) qom_cast_debug="no"
 993   ;;
 994   --enable-qom-cast-debug) qom_cast_debug="yes"
 995   ;;
 996   --disable-virtfs) virtfs="no"
 997   ;;
 998   --enable-virtfs) virtfs="yes"
 999   ;;
1000   --disable-libudev) libudev="disabled"
1001   ;;
1002   --enable-libudev) libudev="enabled"
1003   ;;
1004   --disable-virtiofsd) virtiofsd="disabled"
1005   ;;
1006   --enable-virtiofsd) virtiofsd="enabled"
1007   ;;
1008   --disable-mpath) mpath="disabled"
1009   ;;
1010   --enable-mpath) mpath="enabled"
1011   ;;
1012   --disable-vnc) vnc="disabled"
1013   ;;
1014   --enable-vnc) vnc="enabled"
1015   ;;
1016   --disable-gettext) gettext="false"
1017   ;;
1018   --enable-gettext) gettext="true"
1019   ;;
1020   --oss-lib=*) oss_lib="$optarg"
1021   ;;
1022   --audio-drv-list=*) audio_drv_list="$optarg"
1023   ;;
1024   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1025   ;;
1026   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1027   ;;
1028   --enable-debug-tcg) debug_tcg="yes"
1029   ;;
1030   --disable-debug-tcg) debug_tcg="no"
1031   ;;
1032   --enable-debug)
1033       # Enable debugging options that aren't excessively noisy
1034       debug_tcg="yes"
1035       debug_mutex="yes"
1036       debug="yes"
1037       strip_opt="no"
1038       fortify_source="no"
1039   ;;
1040   --enable-sanitizers) sanitizers="yes"
1041   ;;
1042   --disable-sanitizers) sanitizers="no"
1043   ;;
1044   --enable-tsan) tsan="yes"
1045   ;;
1046   --disable-tsan) tsan="no"
1047   ;;
1048   --enable-sparse) sparse="enabled"
1049   ;;
1050   --disable-sparse) sparse="disabled"
1051   ;;
1052   --disable-strip) strip_opt="no"
1053   ;;
1054   --disable-vnc-sasl) vnc_sasl="disabled"
1055   ;;
1056   --enable-vnc-sasl) vnc_sasl="enabled"
1057   ;;
1058   --disable-vnc-jpeg) vnc_jpeg="disabled"
1059   ;;
1060   --enable-vnc-jpeg) vnc_jpeg="enabled"
1061   ;;
1062   --disable-vnc-png) vnc_png="disabled"
1063   ;;
1064   --enable-vnc-png) vnc_png="enabled"
1065   ;;
1066   --disable-slirp) slirp="disabled"
1067   ;;
1068   --enable-slirp=git) slirp="internal"
1069   ;;
1070   --enable-slirp=system) slirp="system"
1071   ;;
1072   --disable-vde) vde="no"
1073   ;;
1074   --enable-vde) vde="yes"
1075   ;;
1076   --disable-netmap) netmap="no"
1077   ;;
1078   --enable-netmap) netmap="yes"
1079   ;;
1080   --disable-xen) xen="disabled"
1081   ;;
1082   --enable-xen) xen="enabled"
1083   ;;
1084   --disable-xen-pci-passthrough) xen_pci_passthrough="disabled"
1085   ;;
1086   --enable-xen-pci-passthrough) xen_pci_passthrough="enabled"
1087   ;;
1088   --disable-brlapi) brlapi="no"
1089   ;;
1090   --enable-brlapi) brlapi="yes"
1091   ;;
1092   --disable-kvm) kvm="disabled"
1093   ;;
1094   --enable-kvm) kvm="enabled"
1095   ;;
1096   --disable-hax) hax="disabled"
1097   ;;
1098   --enable-hax) hax="enabled"
1099   ;;
1100   --disable-hvf) hvf="disabled"
1101   ;;
1102   --enable-hvf) hvf="enabled"
1103   ;;
1104   --disable-whpx) whpx="disabled"
1105   ;;
1106   --enable-whpx) whpx="enabled"
1107   ;;
1108   --disable-tcg-interpreter) tcg_interpreter="no"
1109   ;;
1110   --enable-tcg-interpreter) tcg_interpreter="yes"
1111   ;;
1112   --disable-cap-ng)  cap_ng="no"
1113   ;;
1114   --enable-cap-ng) cap_ng="yes"
1115   ;;
1116   --disable-tcg) tcg="disabled"
1117   ;;
1118   --enable-tcg) tcg="enabled"
1119   ;;
1120   --disable-malloc-trim) malloc_trim="disabled"
1121   ;;
1122   --enable-malloc-trim) malloc_trim="enabled"
1123   ;;
1124   --disable-spice) spice="no"
1125   ;;
1126   --enable-spice) spice="yes"
1127   ;;
1128   --disable-libiscsi) libiscsi="no"
1129   ;;
1130   --enable-libiscsi) libiscsi="yes"
1131   ;;
1132   --disable-libnfs) libnfs="no"
1133   ;;
1134   --enable-libnfs) libnfs="yes"
1135   ;;
1136   --enable-profiler) profiler="yes"
1137   ;;
1138   --disable-cocoa) cocoa="disabled"
1139   ;;
1140   --enable-cocoa)
1141       cocoa="enabled" ;
1142       audio_drv_list="coreaudio $(echo $audio_drv_list | sed s,coreaudio,,g)"
1143   ;;
1144   --disable-system) softmmu="no"
1145   ;;
1146   --enable-system) softmmu="yes"
1147   ;;
1148   --disable-user)
1149       linux_user="no" ;
1150       bsd_user="no" ;
1151   ;;
1152   --enable-user) ;;
1153   --disable-linux-user) linux_user="no"
1154   ;;
1155   --enable-linux-user) linux_user="yes"
1156   ;;
1157   --disable-bsd-user) bsd_user="no"
1158   ;;
1159   --enable-bsd-user) bsd_user="yes"
1160   ;;
1161   --enable-pie) pie="yes"
1162   ;;
1163   --disable-pie) pie="no"
1164   ;;
1165   --enable-werror) werror="yes"
1166   ;;
1167   --disable-werror) werror="no"
1168   ;;
1169   --enable-stack-protector) stack_protector="yes"
1170   ;;
1171   --disable-stack-protector) stack_protector="no"
1172   ;;
1173   --enable-safe-stack) safe_stack="yes"
1174   ;;
1175   --disable-safe-stack) safe_stack="no"
1176   ;;
1177   --disable-curses) curses="disabled"
1178   ;;
1179   --enable-curses) curses="enabled"
1180   ;;
1181   --disable-iconv) iconv="disabled"
1182   ;;
1183   --enable-iconv) iconv="enabled"
1184   ;;
1185   --disable-curl) curl="no"
1186   ;;
1187   --enable-curl) curl="yes"
1188   ;;
1189   --disable-fdt) fdt="disabled"
1190   ;;
1191   --enable-fdt) fdt="enabled"
1192   ;;
1193   --enable-fdt=git) fdt="internal"
1194   ;;
1195   --enable-fdt=system) fdt="system"
1196   ;;
1197   --disable-linux-aio) linux_aio="no"
1198   ;;
1199   --enable-linux-aio) linux_aio="yes"
1200   ;;
1201   --disable-linux-io-uring) linux_io_uring="no"
1202   ;;
1203   --enable-linux-io-uring) linux_io_uring="yes"
1204   ;;
1205   --disable-attr) attr="no"
1206   ;;
1207   --enable-attr) attr="yes"
1208   ;;
1209   --disable-membarrier) membarrier="no"
1210   ;;
1211   --enable-membarrier) membarrier="yes"
1212   ;;
1213   --disable-blobs) blobs="false"
1214   ;;
1215   --with-pkgversion=*) pkgversion="$optarg"
1216   ;;
1217   --with-coroutine=*) coroutine="$optarg"
1218   ;;
1219   --disable-coroutine-pool) coroutine_pool="no"
1220   ;;
1221   --enable-coroutine-pool) coroutine_pool="yes"
1222   ;;
1223   --enable-debug-stack-usage) debug_stack_usage="yes"
1224   ;;
1225   --enable-crypto-afalg) crypto_afalg="yes"
1226   ;;
1227   --disable-crypto-afalg) crypto_afalg="no"
1228   ;;
1229   --disable-docs) docs="disabled"
1230   ;;
1231   --enable-docs) docs="enabled"
1232   ;;
1233   --disable-vhost-net) vhost_net="no"
1234   ;;
1235   --enable-vhost-net) vhost_net="yes"
1236   ;;
1237   --disable-vhost-crypto) vhost_crypto="no"
1238   ;;
1239   --enable-vhost-crypto) vhost_crypto="yes"
1240   ;;
1241   --disable-vhost-scsi) vhost_scsi="no"
1242   ;;
1243   --enable-vhost-scsi) vhost_scsi="yes"
1244   ;;
1245   --disable-vhost-vsock) vhost_vsock="no"
1246   ;;
1247   --enable-vhost-vsock) vhost_vsock="yes"
1248   ;;
1249   --disable-vhost-user-fs) vhost_user_fs="no"
1250   ;;
1251   --enable-vhost-user-fs) vhost_user_fs="yes"
1252   ;;
1253   --disable-opengl) opengl="no"
1254   ;;
1255   --enable-opengl) opengl="yes"
1256   ;;
1257   --disable-rbd) rbd="no"
1258   ;;
1259   --enable-rbd) rbd="yes"
1260   ;;
1261   --disable-xfsctl) xfs="no"
1262   ;;
1263   --enable-xfsctl) xfs="yes"
1264   ;;
1265   --disable-smartcard) smartcard="no"
1266   ;;
1267   --enable-smartcard) smartcard="yes"
1268   ;;
1269   --disable-u2f) u2f="disabled"
1270   ;;
1271   --enable-u2f) u2f="enabled"
1272   ;;
1273   --disable-libusb) libusb="no"
1274   ;;
1275   --enable-libusb) libusb="yes"
1276   ;;
1277   --disable-usb-redir) usb_redir="no"
1278   ;;
1279   --enable-usb-redir) usb_redir="yes"
1280   ;;
1281   --disable-zlib-test)
1282   ;;
1283   --disable-lzo) lzo="no"
1284   ;;
1285   --enable-lzo) lzo="yes"
1286   ;;
1287   --disable-snappy) snappy="no"
1288   ;;
1289   --enable-snappy) snappy="yes"
1290   ;;
1291   --disable-bzip2) bzip2="no"
1292   ;;
1293   --enable-bzip2) bzip2="yes"
1294   ;;
1295   --enable-lzfse) lzfse="yes"
1296   ;;
1297   --disable-lzfse) lzfse="no"
1298   ;;
1299   --disable-zstd) zstd="no"
1300   ;;
1301   --enable-zstd) zstd="yes"
1302   ;;
1303   --enable-guest-agent) guest_agent="yes"
1304   ;;
1305   --disable-guest-agent) guest_agent="no"
1306   ;;
1307   --enable-guest-agent-msi) guest_agent_msi="yes"
1308   ;;
1309   --disable-guest-agent-msi) guest_agent_msi="no"
1310   ;;
1311   --with-vss-sdk) vss_win32_sdk=""
1312   ;;
1313   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1314   ;;
1315   --without-vss-sdk) vss_win32_sdk="no"
1316   ;;
1317   --with-win-sdk) win_sdk=""
1318   ;;
1319   --with-win-sdk=*) win_sdk="$optarg"
1320   ;;
1321   --without-win-sdk) win_sdk="no"
1322   ;;
1323   --enable-tools) want_tools="yes"
1324   ;;
1325   --disable-tools) want_tools="no"
1326   ;;
1327   --enable-seccomp) seccomp="yes"
1328   ;;
1329   --disable-seccomp) seccomp="no"
1330   ;;
1331   --disable-glusterfs) glusterfs="no"
1332   ;;
1333   --disable-avx2) avx2_opt="no"
1334   ;;
1335   --enable-avx2) avx2_opt="yes"
1336   ;;
1337   --disable-avx512f) avx512f_opt="no"
1338   ;;
1339   --enable-avx512f) avx512f_opt="yes"
1340   ;;
1341
1342   --enable-glusterfs) glusterfs="yes"
1343   ;;
1344   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1345       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1346   ;;
1347   --enable-vhdx|--disable-vhdx)
1348       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1349   ;;
1350   --enable-uuid|--disable-uuid)
1351       echo "$0: $opt is obsolete, UUID support is always built" >&2
1352   ;;
1353   --disable-gtk) gtk="no"
1354   ;;
1355   --enable-gtk) gtk="yes"
1356   ;;
1357   --tls-priority=*) tls_priority="$optarg"
1358   ;;
1359   --disable-gnutls) gnutls="no"
1360   ;;
1361   --enable-gnutls) gnutls="yes"
1362   ;;
1363   --disable-nettle) nettle="no"
1364   ;;
1365   --enable-nettle) nettle="yes"
1366   ;;
1367   --disable-gcrypt) gcrypt="no"
1368   ;;
1369   --enable-gcrypt) gcrypt="yes"
1370   ;;
1371   --disable-auth-pam) auth_pam="no"
1372   ;;
1373   --enable-auth-pam) auth_pam="yes"
1374   ;;
1375   --enable-rdma) rdma="yes"
1376   ;;
1377   --disable-rdma) rdma="no"
1378   ;;
1379   --enable-pvrdma) pvrdma="yes"
1380   ;;
1381   --disable-pvrdma) pvrdma="no"
1382   ;;
1383   --disable-vte) vte="no"
1384   ;;
1385   --enable-vte) vte="yes"
1386   ;;
1387   --disable-virglrenderer) virglrenderer="no"
1388   ;;
1389   --enable-virglrenderer) virglrenderer="yes"
1390   ;;
1391   --disable-tpm) tpm="no"
1392   ;;
1393   --enable-tpm) tpm="yes"
1394   ;;
1395   --disable-libssh) libssh="no"
1396   ;;
1397   --enable-libssh) libssh="yes"
1398   ;;
1399   --disable-live-block-migration) live_block_migration="no"
1400   ;;
1401   --enable-live-block-migration) live_block_migration="yes"
1402   ;;
1403   --disable-numa) numa="no"
1404   ;;
1405   --enable-numa) numa="yes"
1406   ;;
1407   --disable-libxml2) libxml2="no"
1408   ;;
1409   --enable-libxml2) libxml2="yes"
1410   ;;
1411   --disable-tcmalloc) tcmalloc="no"
1412   ;;
1413   --enable-tcmalloc) tcmalloc="yes"
1414   ;;
1415   --disable-jemalloc) jemalloc="no"
1416   ;;
1417   --enable-jemalloc) jemalloc="yes"
1418   ;;
1419   --disable-replication) replication="no"
1420   ;;
1421   --enable-replication) replication="yes"
1422   ;;
1423   --disable-bochs) bochs="no"
1424   ;;
1425   --enable-bochs) bochs="yes"
1426   ;;
1427   --disable-cloop) cloop="no"
1428   ;;
1429   --enable-cloop) cloop="yes"
1430   ;;
1431   --disable-dmg) dmg="no"
1432   ;;
1433   --enable-dmg) dmg="yes"
1434   ;;
1435   --disable-qcow1) qcow1="no"
1436   ;;
1437   --enable-qcow1) qcow1="yes"
1438   ;;
1439   --disable-vdi) vdi="no"
1440   ;;
1441   --enable-vdi) vdi="yes"
1442   ;;
1443   --disable-vvfat) vvfat="no"
1444   ;;
1445   --enable-vvfat) vvfat="yes"
1446   ;;
1447   --disable-qed) qed="no"
1448   ;;
1449   --enable-qed) qed="yes"
1450   ;;
1451   --disable-parallels) parallels="no"
1452   ;;
1453   --enable-parallels) parallels="yes"
1454   ;;
1455   --disable-sheepdog) sheepdog="no"
1456   ;;
1457   --enable-sheepdog) sheepdog="yes"
1458   ;;
1459   --disable-vhost-user) vhost_user="no"
1460   ;;
1461   --enable-vhost-user) vhost_user="yes"
1462   ;;
1463   --disable-vhost-vdpa) vhost_vdpa="no"
1464   ;;
1465   --enable-vhost-vdpa) vhost_vdpa="yes"
1466   ;;
1467   --disable-vhost-kernel) vhost_kernel="no"
1468   ;;
1469   --enable-vhost-kernel) vhost_kernel="yes"
1470   ;;
1471   --disable-capstone) capstone="disabled"
1472   ;;
1473   --enable-capstone) capstone="enabled"
1474   ;;
1475   --enable-capstone=git) capstone="internal"
1476   ;;
1477   --enable-capstone=system) capstone="system"
1478   ;;
1479   --with-git=*) git="$optarg"
1480   ;;
1481   --enable-git-update) git_update=yes
1482   ;;
1483   --disable-git-update) git_update=no
1484   ;;
1485   --enable-debug-mutex) debug_mutex=yes
1486   ;;
1487   --disable-debug-mutex) debug_mutex=no
1488   ;;
1489   --enable-libpmem) libpmem=yes
1490   ;;
1491   --disable-libpmem) libpmem=no
1492   ;;
1493   --enable-xkbcommon) xkbcommon="enabled"
1494   ;;
1495   --disable-xkbcommon) xkbcommon="disabled"
1496   ;;
1497   --enable-plugins) plugins="yes"
1498   ;;
1499   --disable-plugins) plugins="no"
1500   ;;
1501   --enable-containers) use_containers="yes"
1502   ;;
1503   --disable-containers) use_containers="no"
1504   ;;
1505   --enable-fuzzing) fuzzing=yes
1506   ;;
1507   --disable-fuzzing) fuzzing=no
1508   ;;
1509   --gdb=*) gdb_bin="$optarg"
1510   ;;
1511   --enable-rng-none) rng_none=yes
1512   ;;
1513   --disable-rng-none) rng_none=no
1514   ;;
1515   --enable-keyring) secret_keyring="yes"
1516   ;;
1517   --disable-keyring) secret_keyring="no"
1518   ;;
1519   --enable-libdaxctl) libdaxctl=yes
1520   ;;
1521   --disable-libdaxctl) libdaxctl=no
1522   ;;
1523   *)
1524       echo "ERROR: unknown option $opt"
1525       echo "Try '$0 --help' for more information"
1526       exit 1
1527   ;;
1528   esac
1529 done
1530
1531 libdir="${libdir:-$prefix/lib}"
1532 libexecdir="${libexecdir:-$prefix/libexec}"
1533 includedir="${includedir:-$prefix/include}"
1534
1535 if test "$mingw32" = "yes" ; then
1536     mandir="$prefix"
1537     datadir="$prefix"
1538     docdir="$prefix"
1539     bindir="$prefix"
1540     sysconfdir="$prefix"
1541     local_statedir="$prefix"
1542 else
1543     mandir="${mandir:-$prefix/share/man}"
1544     datadir="${datadir:-$prefix/share}"
1545     docdir="${docdir:-$prefix/share/doc}"
1546     bindir="${bindir:-$prefix/bin}"
1547     sysconfdir="${sysconfdir:-$prefix/etc}"
1548     local_statedir="${local_statedir:-$prefix/var}"
1549 fi
1550 firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1551 localedir="${localedir:-$datadir/locale}"
1552
1553 case "$cpu" in
1554     ppc)
1555            CPU_CFLAGS="-m32"
1556            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1557            ;;
1558     ppc64)
1559            CPU_CFLAGS="-m64"
1560            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1561            ;;
1562     sparc)
1563            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1564            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1565            ;;
1566     sparc64)
1567            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1568            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1569            ;;
1570     s390)
1571            CPU_CFLAGS="-m31"
1572            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1573            ;;
1574     s390x)
1575            CPU_CFLAGS="-m64"
1576            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1577            ;;
1578     i386)
1579            CPU_CFLAGS="-m32"
1580            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1581            ;;
1582     x86_64)
1583            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1584            # If we truly care, we should simply detect this case at
1585            # runtime and generate the fallback to serial emulation.
1586            CPU_CFLAGS="-m64 -mcx16"
1587            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1588            ;;
1589     x32)
1590            CPU_CFLAGS="-mx32"
1591            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1592            ;;
1593     # No special flags required for other host CPUs
1594 esac
1595
1596 eval "cross_cc_${cpu}=\$host_cc"
1597 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1598 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1599
1600 # For user-mode emulation the host arch has to be one we explicitly
1601 # support, even if we're using TCI.
1602 if [ "$ARCH" = "unknown" ]; then
1603   bsd_user="no"
1604   linux_user="no"
1605 fi
1606
1607 default_target_list=""
1608 deprecated_targets_list=ppc64abi32-linux-user,tilegx-linux-user,lm32-softmmu,unicore32-softmmu
1609 deprecated_features=""
1610 mak_wilds=""
1611
1612 if [ "$softmmu" = "yes" ]; then
1613     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-softmmu.mak"
1614 fi
1615 if [ "$linux_user" = "yes" ]; then
1616     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-linux-user.mak"
1617 fi
1618 if [ "$bsd_user" = "yes" ]; then
1619     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-bsd-user.mak"
1620 fi
1621
1622 # If the user doesn't explicitly specify a deprecated target we will
1623 # skip it.
1624 if test -z "$target_list"; then
1625     if test -z "$target_list_exclude"; then
1626         target_list_exclude="$deprecated_targets_list"
1627     else
1628         target_list_exclude="$target_list_exclude,$deprecated_targets_list"
1629     fi
1630 fi
1631
1632 for config in $mak_wilds; do
1633     target="$(basename "$config" .mak)"
1634     if echo "$target_list_exclude" | grep -vq "$target"; then
1635         default_target_list="${default_target_list} $target"
1636     fi
1637 done
1638
1639 # Enumerate public trace backends for --help output
1640 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1641
1642 if test x"$show_help" = x"yes" ; then
1643 cat << EOF
1644
1645 Usage: configure [options]
1646 Options: [defaults in brackets after descriptions]
1647
1648 Standard options:
1649   --help                   print this message
1650   --prefix=PREFIX          install in PREFIX [$prefix]
1651   --interp-prefix=PREFIX   where to find shared libraries, etc.
1652                            use %M for cpu name [$interp_prefix]
1653   --target-list=LIST       set target list (default: build everything)
1654 $(echo Available targets: $default_target_list | \
1655   fold -s -w 53 | sed -e 's/^/                           /')
1656   --target-list-exclude=LIST exclude a set of targets from the default target-list
1657
1658 Advanced options (experts only):
1659   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
1660   --cc=CC                  use C compiler CC [$cc]
1661   --iasl=IASL              use ACPI compiler IASL [$iasl]
1662   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1663                            build time
1664   --cxx=CXX                use C++ compiler CXX [$cxx]
1665   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1666   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1667   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1668   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1669   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1670   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1671   --make=MAKE              use specified make [$make]
1672   --python=PYTHON          use specified python [$python]
1673   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1674   --meson=MESON            use specified meson [$meson]
1675   --ninja=NINJA            use specified ninja [$ninja]
1676   --smbd=SMBD              use specified smbd [$smbd]
1677   --with-git=GIT           use specified git [$git]
1678   --static                 enable static build [$static]
1679   --mandir=PATH            install man pages in PATH
1680   --datadir=PATH           install firmware in PATH/$qemu_suffix
1681   --localedir=PATH         install translation in PATH/$qemu_suffix
1682   --docdir=PATH            install documentation in PATH/$qemu_suffix
1683   --bindir=PATH            install binaries in PATH
1684   --libdir=PATH            install libraries in PATH
1685   --libexecdir=PATH        install helper binaries in PATH
1686   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1687   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1688   --firmwarepath=PATH      search PATH for firmware files
1689   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1690   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1691   --with-pkgversion=VERS   use specified string as sub-version of the package
1692   --enable-debug           enable common debug build options
1693   --enable-sanitizers      enable default sanitizers
1694   --enable-tsan            enable thread sanitizer
1695   --disable-strip          disable stripping binaries
1696   --disable-werror         disable compilation abort on warning
1697   --disable-stack-protector disable compiler-provided stack protection
1698   --audio-drv-list=LIST    set audio drivers list:
1699                            Available drivers: $audio_possible_drivers
1700   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1701   --block-drv-rw-whitelist=L
1702                            set block driver read-write whitelist
1703                            (affects only QEMU, not qemu-img)
1704   --block-drv-ro-whitelist=L
1705                            set block driver read-only whitelist
1706                            (affects only QEMU, not qemu-img)
1707   --enable-trace-backends=B Set trace backend
1708                            Available backends: $trace_backend_list
1709   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1710                            Default:trace-<pid>
1711   --disable-slirp          disable SLIRP userspace network connectivity
1712   --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)
1713   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1714   --oss-lib                path to OSS library
1715   --cpu=CPU                Build for host CPU [$cpu]
1716   --with-coroutine=BACKEND coroutine backend. Supported options:
1717                            ucontext, sigaltstack, windows
1718   --enable-gcov            enable test coverage analysis with gcov
1719   --disable-blobs          disable installing provided firmware blobs
1720   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1721   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1722   --tls-priority           default TLS protocol/cipher priority string
1723   --enable-gprof           QEMU profiling with gprof
1724   --enable-profiler        profiler support
1725   --enable-debug-stack-usage
1726                            track the maximum stack usage of stacks created by qemu_alloc_stack
1727   --enable-plugins
1728                            enable plugins via shared library loading
1729   --disable-containers     don't use containers for cross-building
1730   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1731
1732 Optional features, enabled with --enable-FEATURE and
1733 disabled with --disable-FEATURE, default is enabled if available:
1734
1735   system          all system emulation targets
1736   user            supported user emulation targets
1737   linux-user      all linux usermode emulation targets
1738   bsd-user        all BSD usermode emulation targets
1739   docs            build documentation
1740   guest-agent     build the QEMU Guest Agent
1741   guest-agent-msi build guest agent Windows MSI installation package
1742   pie             Position Independent Executables
1743   modules         modules support (non-Windows)
1744   module-upgrades try to load modules from alternate paths for upgrades
1745   debug-tcg       TCG debugging (default is disabled)
1746   debug-info      debugging information
1747   sparse          sparse checker
1748   safe-stack      SafeStack Stack Smash Protection. Depends on
1749                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1750
1751   gnutls          GNUTLS cryptography support
1752   nettle          nettle cryptography support
1753   gcrypt          libgcrypt cryptography support
1754   auth-pam        PAM access control
1755   sdl             SDL UI
1756   sdl-image       SDL Image support for icons
1757   gtk             gtk UI
1758   vte             vte support for the gtk UI
1759   curses          curses UI
1760   iconv           font glyph conversion support
1761   vnc             VNC UI support
1762   vnc-sasl        SASL encryption for VNC server
1763   vnc-jpeg        JPEG lossy compression for VNC server
1764   vnc-png         PNG compression for VNC server
1765   cocoa           Cocoa UI (Mac OS X only)
1766   virtfs          VirtFS
1767   virtiofsd       build virtiofs daemon (virtiofsd)
1768   libudev         Use libudev to enumerate host devices
1769   mpath           Multipath persistent reservation passthrough
1770   xen             xen backend driver support
1771   xen-pci-passthrough    PCI passthrough support for Xen
1772   brlapi          BrlAPI (Braile)
1773   curl            curl connectivity
1774   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1775   fdt             fdt device tree
1776   kvm             KVM acceleration support
1777   hax             HAX acceleration support
1778   hvf             Hypervisor.framework acceleration support
1779   whpx            Windows Hypervisor Platform acceleration support
1780   rdma            Enable RDMA-based migration
1781   pvrdma          Enable PVRDMA support
1782   vde             support for vde network
1783   netmap          support for netmap network
1784   linux-aio       Linux AIO support
1785   linux-io-uring  Linux io_uring support
1786   cap-ng          libcap-ng support
1787   attr            attr and xattr support
1788   vhost-net       vhost-net kernel acceleration support
1789   vhost-vsock     virtio sockets device support
1790   vhost-scsi      vhost-scsi kernel target support
1791   vhost-crypto    vhost-user-crypto backend support
1792   vhost-kernel    vhost kernel backend support
1793   vhost-user      vhost-user backend support
1794   vhost-vdpa      vhost-vdpa kernel backend support
1795   spice           spice
1796   rbd             rados block device (rbd)
1797   libiscsi        iscsi support
1798   libnfs          nfs support
1799   smartcard       smartcard support (libcacard)
1800   u2f             U2F support (u2f-emu)
1801   libusb          libusb (for usb passthrough)
1802   live-block-migration   Block migration in the main migration stream
1803   usb-redir       usb network redirection support
1804   lzo             support of lzo compression library
1805   snappy          support of snappy compression library
1806   bzip2           support of bzip2 compression library
1807                   (for reading bzip2-compressed dmg images)
1808   lzfse           support of lzfse compression library
1809                   (for reading lzfse-compressed dmg images)
1810   zstd            support for zstd compression library
1811                   (for migration compression and qcow2 cluster compression)
1812   seccomp         seccomp support
1813   coroutine-pool  coroutine freelist (better performance)
1814   glusterfs       GlusterFS backend
1815   tpm             TPM support
1816   libssh          ssh block device support
1817   numa            libnuma support
1818   libxml2         for Parallels image format
1819   tcmalloc        tcmalloc support
1820   jemalloc        jemalloc support
1821   avx2            AVX2 optimization support
1822   avx512f         AVX512F optimization support
1823   replication     replication support
1824   opengl          opengl support
1825   virglrenderer   virgl rendering support
1826   xfsctl          xfsctl support
1827   qom-cast-debug  cast debugging support
1828   tools           build qemu-io, qemu-nbd and qemu-img tools
1829   bochs           bochs image format support
1830   cloop           cloop image format support
1831   dmg             dmg image format support
1832   qcow1           qcow v1 image format support
1833   vdi             vdi image format support
1834   vvfat           vvfat image format support
1835   qed             qed image format support
1836   parallels       parallels image format support
1837   sheepdog        sheepdog block driver support (deprecated)
1838   crypto-afalg    Linux AF_ALG crypto backend driver
1839   capstone        capstone disassembler support
1840   debug-mutex     mutex debugging support
1841   libpmem         libpmem support
1842   xkbcommon       xkbcommon support
1843   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1844   libdaxctl       libdaxctl support
1845
1846 NOTE: The object files are built at the place where configure is launched
1847 EOF
1848 exit 0
1849 fi
1850
1851 # Remove old dependency files to make sure that they get properly regenerated
1852 rm -f */config-devices.mak.d
1853
1854 if test -z "$python"
1855 then
1856     error_exit "Python not found. Use --python=/path/to/python"
1857 fi
1858
1859 # Note that if the Python conditional here evaluates True we will exit
1860 # with status 1 which is a shell 'false' value.
1861 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1862   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1863       "Use --python=/path/to/python to specify a supported Python."
1864 fi
1865
1866 # Preserve python version since some functionality is dependent on it
1867 python_version=$($python -c 'import sys; print("%d.%d.%d" % (sys.version_info[0], sys.version_info[1], sys.version_info[2]))' 2>/dev/null)
1868
1869 # Suppress writing compiled files
1870 python="$python -B"
1871
1872 if test -z "$meson"; then
1873     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.55.3; then
1874         meson=meson
1875     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
1876         meson=git
1877     elif test -e "${source_path}/meson/meson.py" ; then
1878         meson=internal
1879     else
1880         if test "$explicit_python" = yes; then
1881             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1882         else
1883             error_exit "Meson not found.  Use --meson=/path/to/meson"
1884         fi
1885     fi
1886 else
1887     # Meson uses its own Python interpreter to invoke other Python scripts,
1888     # but the user wants to use the one they specified with --python.
1889     #
1890     # We do not want to override the distro Python interpreter (and sometimes
1891     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1892     # just require --meson=git|internal together with --python.
1893     if test "$explicit_python" = yes; then
1894         case "$meson" in
1895             git | internal) ;;
1896             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1897         esac
1898     fi
1899 fi
1900
1901 if test "$meson" = git; then
1902     git_submodules="${git_submodules} meson"
1903 fi
1904
1905 case "$meson" in
1906     git | internal)
1907         if ! $python -c 'import pkg_resources' > /dev/null 2>&1; then
1908             error_exit "Python setuptools not found"
1909         fi
1910         meson="$python ${source_path}/meson/meson.py"
1911         ;;
1912     *) meson=$(command -v "$meson") ;;
1913 esac
1914
1915 # Probe for ninja
1916
1917 if test -z "$ninja"; then
1918     for c in ninja ninja-build samu; do
1919         if has $c; then
1920             ninja=$(command -v "$c")
1921             break
1922         fi
1923     done
1924     if test -z "$ninja"; then
1925       error_exit "Cannot find Ninja"
1926     fi
1927 fi
1928
1929 # Check that the C compiler works. Doing this here before testing
1930 # the host CPU ensures that we had a valid CC to autodetect the
1931 # $cpu var (and we should bail right here if that's not the case).
1932 # It also allows the help message to be printed without a CC.
1933 write_c_skeleton;
1934 if compile_object ; then
1935   : C compiler works ok
1936 else
1937     error_exit "\"$cc\" either does not exist or does not work"
1938 fi
1939 if ! compile_prog ; then
1940     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1941 fi
1942
1943 # Consult white-list to determine whether to enable werror
1944 # by default.  Only enable by default for git builds
1945 if test -z "$werror" ; then
1946     if test -e "$source_path/.git" && \
1947         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1948         werror="yes"
1949     else
1950         werror="no"
1951     fi
1952 fi
1953
1954 if test "$bogus_os" = "yes"; then
1955     # Now that we know that we're not printing the help and that
1956     # the compiler works (so the results of the check_defines we used
1957     # to identify the OS are reliable), if we didn't recognize the
1958     # host OS we should stop now.
1959     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1960 fi
1961
1962 # Check whether the compiler matches our minimum requirements:
1963 cat > $TMPC << EOF
1964 #if defined(__clang_major__) && defined(__clang_minor__)
1965 # ifdef __apple_build_version__
1966 #  if __clang_major__ < 5 || (__clang_major__ == 5 && __clang_minor__ < 1)
1967 #   error You need at least XCode Clang v5.1 to compile QEMU
1968 #  endif
1969 # else
1970 #  if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 4)
1971 #   error You need at least Clang v3.4 to compile QEMU
1972 #  endif
1973 # endif
1974 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1975 # if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
1976 #  error You need at least GCC v4.8 to compile QEMU
1977 # endif
1978 #else
1979 # error You either need GCC or Clang to compiler QEMU
1980 #endif
1981 int main (void) { return 0; }
1982 EOF
1983 if ! compile_prog "" "" ; then
1984     error_exit "You need at least GCC v4.8 or Clang v3.4 (or XCode Clang v5.1)"
1985 fi
1986
1987 # Accumulate -Wfoo and -Wno-bar separately.
1988 # We will list all of the enable flags first, and the disable flags second.
1989 # Note that we do not add -Werror, because that would enable it for all
1990 # configure tests. If a configure test failed due to -Werror this would
1991 # just silently disable some features, so it's too error prone.
1992
1993 warn_flags=
1994 add_to warn_flags -Wold-style-declaration
1995 add_to warn_flags -Wold-style-definition
1996 add_to warn_flags -Wtype-limits
1997 add_to warn_flags -Wformat-security
1998 add_to warn_flags -Wformat-y2k
1999 add_to warn_flags -Winit-self
2000 add_to warn_flags -Wignored-qualifiers
2001 add_to warn_flags -Wempty-body
2002 add_to warn_flags -Wnested-externs
2003 add_to warn_flags -Wendif-labels
2004 add_to warn_flags -Wexpansion-to-defined
2005
2006 nowarn_flags=
2007 add_to nowarn_flags -Wno-initializer-overrides
2008 add_to nowarn_flags -Wno-missing-include-dirs
2009 add_to nowarn_flags -Wno-shift-negative-value
2010 add_to nowarn_flags -Wno-string-plus-int
2011 add_to nowarn_flags -Wno-typedef-redefinition
2012 add_to nowarn_flags -Wno-tautological-type-limit-compare
2013 add_to nowarn_flags -Wno-psabi
2014
2015 gcc_flags="$warn_flags $nowarn_flags"
2016
2017 cc_has_warning_flag() {
2018     write_c_skeleton;
2019
2020     # Use the positive sense of the flag when testing for -Wno-wombat
2021     # support (gcc will happily accept the -Wno- form of unknown
2022     # warning options).
2023     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2024     compile_prog "-Werror $optflag" ""
2025 }
2026
2027 for flag in $gcc_flags; do
2028     if cc_has_warning_flag $flag ; then
2029         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2030     fi
2031 done
2032
2033 if test "$stack_protector" != "no"; then
2034   cat > $TMPC << EOF
2035 int main(int argc, char *argv[])
2036 {
2037     char arr[64], *p = arr, *c = argv[0];
2038     while (*c) {
2039         *p++ = *c++;
2040     }
2041     return 0;
2042 }
2043 EOF
2044   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2045   sp_on=0
2046   for flag in $gcc_flags; do
2047     # We need to check both a compile and a link, since some compiler
2048     # setups fail only on a .c->.o compile and some only at link time
2049     if compile_object "-Werror $flag" &&
2050        compile_prog "-Werror $flag" ""; then
2051       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2052       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2053       sp_on=1
2054       break
2055     fi
2056   done
2057   if test "$stack_protector" = yes; then
2058     if test $sp_on = 0; then
2059       error_exit "Stack protector not supported"
2060     fi
2061   fi
2062 fi
2063
2064 # Disable -Wmissing-braces on older compilers that warn even for
2065 # the "universal" C zero initializer {0}.
2066 cat > $TMPC << EOF
2067 struct {
2068   int a[2];
2069 } x = {0};
2070 EOF
2071 if compile_object "-Werror" "" ; then
2072   :
2073 else
2074   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2075 fi
2076
2077 # Our module code doesn't support Windows
2078 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2079   error_exit "Modules are not available for Windows"
2080 fi
2081
2082 # module_upgrades is only reasonable if modules are enabled
2083 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2084   error_exit "Can't enable module-upgrades as Modules are not enabled"
2085 fi
2086
2087 # Static linking is not possible with modules or PIE
2088 if test "$static" = "yes" ; then
2089   if test "$modules" = "yes" ; then
2090     error_exit "static and modules are mutually incompatible"
2091   fi
2092 fi
2093
2094 # Unconditional check for compiler __thread support
2095   cat > $TMPC << EOF
2096 static __thread int tls_var;
2097 int main(void) { return tls_var; }
2098 EOF
2099
2100 if ! compile_prog "-Werror" "" ; then
2101     error_exit "Your compiler does not support the __thread specifier for " \
2102         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2103 fi
2104
2105 cat > $TMPC << EOF
2106
2107 #ifdef __linux__
2108 #  define THREAD __thread
2109 #else
2110 #  define THREAD
2111 #endif
2112 static THREAD int tls_var;
2113 int main(void) { return tls_var; }
2114 EOF
2115
2116 # Check we support --no-pie first; we will need this for building ROMs.
2117 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2118   CFLAGS_NOPIE="-fno-pie"
2119   LDFLAGS_NOPIE="-no-pie"
2120 fi
2121
2122 if test "$static" = "yes"; then
2123   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
2124     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2125     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
2126     pie="yes"
2127   elif test "$pie" = "yes"; then
2128     error_exit "-static-pie not available due to missing toolchain support"
2129   else
2130     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
2131     pie="no"
2132   fi
2133 elif test "$pie" = "no"; then
2134   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
2135   CONFIGURE_LDFLAGS="$LDFLAGS_NOPIE $CONFIGURE_LDFLAGS"
2136 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2137   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2138   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
2139   pie="yes"
2140 elif test "$pie" = "yes"; then
2141   error_exit "PIE not available due to missing toolchain support"
2142 else
2143   echo "Disabling PIE due to missing toolchain support"
2144   pie="no"
2145 fi
2146
2147 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2148 # The combination is known as "full relro", because .got.plt is read-only too.
2149 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2150   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2151 fi
2152
2153 ##########################################
2154 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2155 # use i686 as default anyway, but for those that don't, an explicit
2156 # specification is necessary
2157
2158 if test "$cpu" = "i386"; then
2159   cat > $TMPC << EOF
2160 static int sfaa(int *ptr)
2161 {
2162   return __sync_fetch_and_and(ptr, 0);
2163 }
2164
2165 int main(void)
2166 {
2167   int val = 42;
2168   val = __sync_val_compare_and_swap(&val, 0, 1);
2169   sfaa(&val);
2170   return val;
2171 }
2172 EOF
2173   if ! compile_prog "" "" ; then
2174     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2175   fi
2176 fi
2177
2178 #########################################
2179 # Solaris specific configure tool chain decisions
2180
2181 if test "$solaris" = "yes" ; then
2182   if has ar; then
2183     :
2184   else
2185     if test -f /usr/ccs/bin/ar ; then
2186       error_exit "No path includes ar" \
2187           "Add /usr/ccs/bin to your path and rerun configure"
2188     fi
2189     error_exit "No path includes ar"
2190   fi
2191 fi
2192
2193 if test -z "${target_list+xxx}" ; then
2194     default_targets=yes
2195     for target in $default_target_list; do
2196         target_list="$target_list $target"
2197     done
2198     target_list="${target_list# }"
2199 else
2200     default_targets=no
2201     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2202     for target in $target_list; do
2203         # Check that we recognised the target name; this allows a more
2204         # friendly error message than if we let it fall through.
2205         case " $default_target_list " in
2206             *" $target "*)
2207                 ;;
2208             *)
2209                 error_exit "Unknown target name '$target'"
2210                 ;;
2211         esac
2212     done
2213 fi
2214
2215 for target in $target_list; do
2216     # if a deprecated target is enabled we note it here
2217     if echo "$deprecated_targets_list" | grep -q "$target"; then
2218         add_to deprecated_features $target
2219     fi
2220 done
2221
2222 # see if system emulation was really requested
2223 case " $target_list " in
2224   *"-softmmu "*) softmmu=yes
2225   ;;
2226   *) softmmu=no
2227   ;;
2228 esac
2229
2230 feature_not_found() {
2231   feature=$1
2232   remedy=$2
2233
2234   error_exit "User requested feature $feature" \
2235       "configure was not able to find it." \
2236       "$remedy"
2237 }
2238
2239 # ---
2240 # big/little endian test
2241 cat > $TMPC << EOF
2242 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2243 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2244 extern int foo(short *, short *);
2245 int main(int argc, char *argv[]) {
2246     return foo(big_endian, little_endian);
2247 }
2248 EOF
2249
2250 if compile_object ; then
2251     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2252         bigendian="yes"
2253     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2254         bigendian="no"
2255     else
2256         echo big/little test failed
2257     fi
2258 else
2259     echo big/little test failed
2260 fi
2261
2262 ##########################################
2263 # system tools
2264 if test -z "$want_tools"; then
2265     if test "$softmmu" = "no"; then
2266         want_tools=no
2267     else
2268         want_tools=yes
2269     fi
2270 fi
2271
2272 ##########################################
2273 # cocoa implies not SDL or GTK
2274 # (the cocoa UI code currently assumes it is always the active UI
2275 # and doesn't interact well with other UI frontend code)
2276 if test "$cocoa" = "enabled"; then
2277     if test "$sdl" = "enabled"; then
2278         error_exit "Cocoa and SDL UIs cannot both be enabled at once"
2279     fi
2280     if test "$gtk" = "yes"; then
2281         error_exit "Cocoa and GTK UIs cannot both be enabled at once"
2282     fi
2283     gtk=no
2284     sdl=disabled
2285 fi
2286
2287 # Some versions of Mac OS X incorrectly define SIZE_MAX
2288 cat > $TMPC << EOF
2289 #include <stdint.h>
2290 #include <stdio.h>
2291 int main(int argc, char *argv[]) {
2292     return printf("%zu", SIZE_MAX);
2293 }
2294 EOF
2295 have_broken_size_max=no
2296 if ! compile_object -Werror ; then
2297     have_broken_size_max=yes
2298 fi
2299
2300 ##########################################
2301 # L2TPV3 probe
2302
2303 cat > $TMPC <<EOF
2304 #include <sys/socket.h>
2305 #include <linux/ip.h>
2306 int main(void) { return sizeof(struct mmsghdr); }
2307 EOF
2308 if compile_prog "" "" ; then
2309   l2tpv3=yes
2310 else
2311   l2tpv3=no
2312 fi
2313
2314 if check_include "pty.h" ; then
2315   pty_h=yes
2316 else
2317   pty_h=no
2318 fi
2319
2320 cat > $TMPC <<EOF
2321 #include <sys/mman.h>
2322 int main(int argc, char *argv[]) {
2323     return mlockall(MCL_FUTURE);
2324 }
2325 EOF
2326 if compile_prog "" "" ; then
2327   have_mlockall=yes
2328 else
2329   have_mlockall=no
2330 fi
2331
2332 #########################################
2333 # vhost interdependencies and host support
2334
2335 # vhost backends
2336 test "$vhost_user" = "" && vhost_user=yes
2337 if test "$vhost_user" = "yes" && test "$mingw32" = "yes"; then
2338   error_exit "vhost-user isn't available on win32"
2339 fi
2340 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2341 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2342   error_exit "vhost-vdpa is only available on Linux"
2343 fi
2344 test "$vhost_kernel" = "" && vhost_kernel=$linux
2345 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2346   error_exit "vhost-kernel is only available on Linux"
2347 fi
2348
2349 # vhost-kernel devices
2350 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2351 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2352   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2353 fi
2354 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2355 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2356   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2357 fi
2358
2359 # vhost-user backends
2360 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2361 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2362   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2363 fi
2364 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2365 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2366   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2367 fi
2368 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2369 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2370   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2371 fi
2372 #vhost-vdpa backends
2373 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2374 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2375   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2376 fi
2377
2378 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
2379 if test "$vhost_net" = ""; then
2380   test "$vhost_net_user" = "yes" && vhost_net=yes
2381   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
2382   test "$vhost_kernel" = "yes" && vhost_net=yes
2383 fi
2384
2385 ##########################################
2386 # pkg-config probe
2387
2388 if ! has "$pkg_config_exe"; then
2389   error_exit "pkg-config binary '$pkg_config_exe' not found"
2390 fi
2391
2392 ##########################################
2393 # NPTL probe
2394
2395 if test "$linux_user" = "yes"; then
2396   cat > $TMPC <<EOF
2397 #include <sched.h>
2398 #include <linux/futex.h>
2399 int main(void) {
2400 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2401 #error bork
2402 #endif
2403   return 0;
2404 }
2405 EOF
2406   if ! compile_object ; then
2407     feature_not_found "nptl" "Install glibc and linux kernel headers."
2408   fi
2409 fi
2410
2411 ##########################################
2412 # lzo check
2413
2414 if test "$lzo" != "no" ; then
2415     cat > $TMPC << EOF
2416 #include <lzo/lzo1x.h>
2417 int main(void) { lzo_version(); return 0; }
2418 EOF
2419     if compile_prog "" "-llzo2" ; then
2420         lzo_libs="-llzo2"
2421         lzo="yes"
2422     else
2423         if test "$lzo" = "yes"; then
2424             feature_not_found "liblzo2" "Install liblzo2 devel"
2425         fi
2426         lzo="no"
2427     fi
2428 fi
2429
2430 ##########################################
2431 # snappy check
2432
2433 if test "$snappy" != "no" ; then
2434     cat > $TMPC << EOF
2435 #include <snappy-c.h>
2436 int main(void) { snappy_max_compressed_length(4096); return 0; }
2437 EOF
2438     if compile_prog "" "-lsnappy" ; then
2439         snappy_libs='-lsnappy'
2440         snappy="yes"
2441     else
2442         if test "$snappy" = "yes"; then
2443             feature_not_found "libsnappy" "Install libsnappy devel"
2444         fi
2445         snappy="no"
2446     fi
2447 fi
2448
2449 ##########################################
2450 # bzip2 check
2451
2452 if test "$bzip2" != "no" ; then
2453     cat > $TMPC << EOF
2454 #include <bzlib.h>
2455 int main(void) { BZ2_bzlibVersion(); return 0; }
2456 EOF
2457     if compile_prog "" "-lbz2" ; then
2458         bzip2="yes"
2459     else
2460         if test "$bzip2" = "yes"; then
2461             feature_not_found "libbzip2" "Install libbzip2 devel"
2462         fi
2463         bzip2="no"
2464     fi
2465 fi
2466
2467 ##########################################
2468 # lzfse check
2469
2470 if test "$lzfse" != "no" ; then
2471     cat > $TMPC << EOF
2472 #include <lzfse.h>
2473 int main(void) { lzfse_decode_scratch_size(); return 0; }
2474 EOF
2475     if compile_prog "" "-llzfse" ; then
2476         lzfse="yes"
2477     else
2478         if test "$lzfse" = "yes"; then
2479             feature_not_found "lzfse" "Install lzfse devel"
2480         fi
2481         lzfse="no"
2482     fi
2483 fi
2484
2485 ##########################################
2486 # zstd check
2487
2488 if test "$zstd" != "no" ; then
2489     libzstd_minver="1.4.0"
2490     if $pkg_config --atleast-version=$libzstd_minver libzstd ; then
2491         zstd_cflags="$($pkg_config --cflags libzstd)"
2492         zstd_libs="$($pkg_config --libs libzstd)"
2493         zstd="yes"
2494     else
2495         if test "$zstd" = "yes" ; then
2496             feature_not_found "libzstd" "Install libzstd devel"
2497         fi
2498         zstd="no"
2499     fi
2500 fi
2501
2502 ##########################################
2503 # libseccomp check
2504
2505 if test "$seccomp" != "no" ; then
2506     libseccomp_minver="2.3.0"
2507     if $pkg_config --atleast-version=$libseccomp_minver libseccomp ; then
2508         seccomp_cflags="$($pkg_config --cflags libseccomp)"
2509         seccomp_libs="$($pkg_config --libs libseccomp)"
2510         seccomp="yes"
2511     else
2512         if test "$seccomp" = "yes" ; then
2513             feature_not_found "libseccomp" \
2514                  "Install libseccomp devel >= $libseccomp_minver"
2515         fi
2516         seccomp="no"
2517     fi
2518 fi
2519
2520 ##########################################
2521 # xen probe
2522
2523 if test "$xen" != "disabled" ; then
2524   # Check whether Xen library path is specified via --extra-ldflags to avoid
2525   # overriding this setting with pkg-config output. If not, try pkg-config
2526   # to obtain all needed flags.
2527
2528   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2529      $pkg_config --exists xencontrol ; then
2530     xen_ctrl_version="$(printf '%d%02d%02d' \
2531       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2532     xen=enabled
2533     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
2534     xen_pc="$xen_pc xenevtchn xendevicemodel"
2535     if $pkg_config --exists xentoolcore; then
2536       xen_pc="$xen_pc xentoolcore"
2537     fi
2538     xen_cflags="$($pkg_config --cflags $xen_pc)"
2539     xen_libs="$($pkg_config --libs $xen_pc)"
2540   else
2541
2542     xen_libs="-lxenstore -lxenctrl"
2543     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2544
2545     # First we test whether Xen headers and libraries are available.
2546     # If no, we are done and there is no Xen support.
2547     # If yes, more tests are run to detect the Xen version.
2548
2549     # Xen (any)
2550     cat > $TMPC <<EOF
2551 #include <xenctrl.h>
2552 int main(void) {
2553   return 0;
2554 }
2555 EOF
2556     if ! compile_prog "" "$xen_libs" ; then
2557       # Xen not found
2558       if test "$xen" = "enabled" ; then
2559         feature_not_found "xen" "Install xen devel"
2560       fi
2561       xen=disabled
2562
2563     # Xen unstable
2564     elif
2565         cat > $TMPC <<EOF &&
2566 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2567 #define __XEN_TOOLS__
2568 #include <xendevicemodel.h>
2569 #include <xenforeignmemory.h>
2570 int main(void) {
2571   xendevicemodel_handle *xd;
2572   xenforeignmemory_handle *xfmem;
2573
2574   xd = xendevicemodel_open(0, 0);
2575   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2576
2577   xfmem = xenforeignmemory_open(0, 0);
2578   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2579
2580   return 0;
2581 }
2582 EOF
2583         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2584       then
2585       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2586       xen_ctrl_version=41100
2587       xen=enabled
2588     elif
2589         cat > $TMPC <<EOF &&
2590 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2591 #include <xenforeignmemory.h>
2592 #include <xentoolcore.h>
2593 int main(void) {
2594   xenforeignmemory_handle *xfmem;
2595
2596   xfmem = xenforeignmemory_open(0, 0);
2597   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2598   xentoolcore_restrict_all(0);
2599
2600   return 0;
2601 }
2602 EOF
2603         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2604       then
2605       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2606       xen_ctrl_version=41000
2607       xen=enabled
2608     elif
2609         cat > $TMPC <<EOF &&
2610 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2611 #define __XEN_TOOLS__
2612 #include <xendevicemodel.h>
2613 int main(void) {
2614   xendevicemodel_handle *xd;
2615
2616   xd = xendevicemodel_open(0, 0);
2617   xendevicemodel_close(xd);
2618
2619   return 0;
2620 }
2621 EOF
2622         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2623       then
2624       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2625       xen_ctrl_version=40900
2626       xen=enabled
2627     elif
2628         cat > $TMPC <<EOF &&
2629 /*
2630  * If we have stable libs the we don't want the libxc compat
2631  * layers, regardless of what CFLAGS we may have been given.
2632  *
2633  * Also, check if xengnttab_grant_copy_segment_t is defined and
2634  * grant copy operation is implemented.
2635  */
2636 #undef XC_WANT_COMPAT_EVTCHN_API
2637 #undef XC_WANT_COMPAT_GNTTAB_API
2638 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2639 #include <xenctrl.h>
2640 #include <xenstore.h>
2641 #include <xenevtchn.h>
2642 #include <xengnttab.h>
2643 #include <xenforeignmemory.h>
2644 #include <stdint.h>
2645 #include <xen/hvm/hvm_info_table.h>
2646 #if !defined(HVM_MAX_VCPUS)
2647 # error HVM_MAX_VCPUS not defined
2648 #endif
2649 int main(void) {
2650   xc_interface *xc = NULL;
2651   xenforeignmemory_handle *xfmem;
2652   xenevtchn_handle *xe;
2653   xengnttab_handle *xg;
2654   xengnttab_grant_copy_segment_t* seg = NULL;
2655
2656   xs_daemon_open();
2657
2658   xc = xc_interface_open(0, 0, 0);
2659   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2660   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2661   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2662   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2663
2664   xfmem = xenforeignmemory_open(0, 0);
2665   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2666
2667   xe = xenevtchn_open(0, 0);
2668   xenevtchn_fd(xe);
2669
2670   xg = xengnttab_open(0, 0);
2671   xengnttab_grant_copy(xg, 0, seg);
2672
2673   return 0;
2674 }
2675 EOF
2676         compile_prog "" "$xen_libs $xen_stable_libs"
2677       then
2678       xen_ctrl_version=40800
2679       xen=enabled
2680     elif
2681         cat > $TMPC <<EOF &&
2682 /*
2683  * If we have stable libs the we don't want the libxc compat
2684  * layers, regardless of what CFLAGS we may have been given.
2685  */
2686 #undef XC_WANT_COMPAT_EVTCHN_API
2687 #undef XC_WANT_COMPAT_GNTTAB_API
2688 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2689 #include <xenctrl.h>
2690 #include <xenstore.h>
2691 #include <xenevtchn.h>
2692 #include <xengnttab.h>
2693 #include <xenforeignmemory.h>
2694 #include <stdint.h>
2695 #include <xen/hvm/hvm_info_table.h>
2696 #if !defined(HVM_MAX_VCPUS)
2697 # error HVM_MAX_VCPUS not defined
2698 #endif
2699 int main(void) {
2700   xc_interface *xc = NULL;
2701   xenforeignmemory_handle *xfmem;
2702   xenevtchn_handle *xe;
2703   xengnttab_handle *xg;
2704
2705   xs_daemon_open();
2706
2707   xc = xc_interface_open(0, 0, 0);
2708   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2709   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2710   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2711   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2712
2713   xfmem = xenforeignmemory_open(0, 0);
2714   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2715
2716   xe = xenevtchn_open(0, 0);
2717   xenevtchn_fd(xe);
2718
2719   xg = xengnttab_open(0, 0);
2720   xengnttab_map_grant_ref(xg, 0, 0, 0);
2721
2722   return 0;
2723 }
2724 EOF
2725         compile_prog "" "$xen_libs $xen_stable_libs"
2726       then
2727       xen_ctrl_version=40701
2728       xen=enabled
2729
2730     # Xen 4.6
2731     elif
2732         cat > $TMPC <<EOF &&
2733 #include <xenctrl.h>
2734 #include <xenstore.h>
2735 #include <stdint.h>
2736 #include <xen/hvm/hvm_info_table.h>
2737 #if !defined(HVM_MAX_VCPUS)
2738 # error HVM_MAX_VCPUS not defined
2739 #endif
2740 int main(void) {
2741   xc_interface *xc;
2742   xs_daemon_open();
2743   xc = xc_interface_open(0, 0, 0);
2744   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2745   xc_gnttab_open(NULL, 0);
2746   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2747   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2748   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2749   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2750   return 0;
2751 }
2752 EOF
2753         compile_prog "" "$xen_libs"
2754       then
2755       xen_ctrl_version=40600
2756       xen=enabled
2757
2758     # Xen 4.5
2759     elif
2760         cat > $TMPC <<EOF &&
2761 #include <xenctrl.h>
2762 #include <xenstore.h>
2763 #include <stdint.h>
2764 #include <xen/hvm/hvm_info_table.h>
2765 #if !defined(HVM_MAX_VCPUS)
2766 # error HVM_MAX_VCPUS not defined
2767 #endif
2768 int main(void) {
2769   xc_interface *xc;
2770   xs_daemon_open();
2771   xc = xc_interface_open(0, 0, 0);
2772   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2773   xc_gnttab_open(NULL, 0);
2774   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2775   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2776   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2777   return 0;
2778 }
2779 EOF
2780         compile_prog "" "$xen_libs"
2781       then
2782       xen_ctrl_version=40500
2783       xen=enabled
2784
2785     elif
2786         cat > $TMPC <<EOF &&
2787 #include <xenctrl.h>
2788 #include <xenstore.h>
2789 #include <stdint.h>
2790 #include <xen/hvm/hvm_info_table.h>
2791 #if !defined(HVM_MAX_VCPUS)
2792 # error HVM_MAX_VCPUS not defined
2793 #endif
2794 int main(void) {
2795   xc_interface *xc;
2796   xs_daemon_open();
2797   xc = xc_interface_open(0, 0, 0);
2798   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2799   xc_gnttab_open(NULL, 0);
2800   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2801   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2802   return 0;
2803 }
2804 EOF
2805         compile_prog "" "$xen_libs"
2806       then
2807       xen_ctrl_version=40200
2808       xen=enabled
2809
2810     else
2811       if test "$xen" = "enabled" ; then
2812         feature_not_found "xen (unsupported version)" \
2813                           "Install a supported xen (xen 4.2 or newer)"
2814       fi
2815       xen=disabled
2816     fi
2817
2818     if test "$xen" = enabled; then
2819       if test $xen_ctrl_version -ge 40701  ; then
2820         xen_libs="$xen_libs $xen_stable_libs "
2821       fi
2822     fi
2823   fi
2824 fi
2825
2826 if test "$xen_pci_passthrough" != "disabled"; then
2827   if test "$xen" = "enabled" && test "$linux" = "yes"; then
2828     xen_pci_passthrough=enabled
2829   else
2830     if test "$xen_pci_passthrough" = "enabled"; then
2831       error_exit "User requested feature Xen PCI Passthrough" \
2832           " but this feature requires /sys from Linux"
2833     fi
2834     xen_pci_passthrough=disabled
2835   fi
2836 fi
2837
2838 ##########################################
2839 # gettext probe
2840 if test "$gettext" != "false" ; then
2841   if has xgettext; then
2842     gettext=true
2843   else
2844     if test "$gettext" = "true" ; then
2845       feature_not_found "gettext" "Install xgettext binary"
2846     fi
2847     gettext=false
2848   fi
2849 fi
2850
2851 ##########################################
2852 # X11 probe
2853 if $pkg_config --exists "x11"; then
2854     have_x11=yes
2855     x11_cflags=$($pkg_config --cflags x11)
2856     x11_libs=$($pkg_config --libs x11)
2857 fi
2858
2859 ##########################################
2860 # GTK probe
2861
2862 if test "$gtk" != "no"; then
2863     gtkpackage="gtk+-3.0"
2864     gtkx11package="gtk+-x11-3.0"
2865     gtkversion="3.22.0"
2866     if $pkg_config --exists "$gtkpackage >= $gtkversion"; then
2867         gtk_cflags=$($pkg_config --cflags $gtkpackage)
2868         gtk_libs=$($pkg_config --libs $gtkpackage)
2869         gtk_version=$($pkg_config --modversion $gtkpackage)
2870         if $pkg_config --exists "$gtkx11package >= $gtkversion"; then
2871             need_x11=yes
2872             gtk_cflags="$gtk_cflags $x11_cflags"
2873             gtk_libs="$gtk_libs $x11_libs"
2874         fi
2875         gtk="yes"
2876     elif test "$gtk" = "yes"; then
2877         feature_not_found "gtk" "Install gtk3-devel"
2878     else
2879         gtk="no"
2880     fi
2881 fi
2882
2883
2884 ##########################################
2885 # GNUTLS probe
2886
2887 if test "$gnutls" != "no"; then
2888     pass="no"
2889     if $pkg_config --exists "gnutls >= 3.1.18"; then
2890         gnutls_cflags=$($pkg_config --cflags gnutls)
2891         gnutls_libs=$($pkg_config --libs gnutls)
2892         # Packaging for the static libraries is not always correct.
2893         # At least ubuntu 18.04 ships only shared libraries.
2894         write_c_skeleton
2895         if compile_prog "" "$gnutls_libs" ; then
2896             pass="yes"
2897         fi
2898     fi
2899     if test "$pass" = "no" && test "$gnutls" = "yes"; then
2900         feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
2901     else
2902         gnutls="$pass"
2903     fi
2904 fi
2905
2906
2907 # If user didn't give a --disable/enable-gcrypt flag,
2908 # then mark as disabled if user requested nettle
2909 # explicitly
2910 if test -z "$gcrypt"
2911 then
2912     if test "$nettle" = "yes"
2913     then
2914         gcrypt="no"
2915     fi
2916 fi
2917
2918 # If user didn't give a --disable/enable-nettle flag,
2919 # then mark as disabled if user requested gcrypt
2920 # explicitly
2921 if test -z "$nettle"
2922 then
2923     if test "$gcrypt" = "yes"
2924     then
2925         nettle="no"
2926     fi
2927 fi
2928
2929 has_libgcrypt() {
2930     if ! has "libgcrypt-config"
2931     then
2932         return 1
2933     fi
2934
2935     if test -n "$cross_prefix"
2936     then
2937         host=$(libgcrypt-config --host)
2938         if test "$host-" != $cross_prefix
2939         then
2940             return 1
2941         fi
2942     fi
2943
2944     maj=`libgcrypt-config --version | awk -F . '{print $1}'`
2945     min=`libgcrypt-config --version | awk -F . '{print $2}'`
2946
2947     if test $maj != 1 || test $min -lt 5
2948     then
2949        return 1
2950     fi
2951
2952     return 0
2953 }
2954
2955
2956 if test "$nettle" != "no"; then
2957     pass="no"
2958     if $pkg_config --exists "nettle >= 2.7.1"; then
2959         nettle_cflags=$($pkg_config --cflags nettle)
2960         nettle_libs=$($pkg_config --libs nettle)
2961         nettle_version=$($pkg_config --modversion nettle)
2962         # Link test to make sure the given libraries work (e.g for static).
2963         write_c_skeleton
2964         if compile_prog "" "$nettle_libs" ; then
2965             if test -z "$gcrypt"; then
2966                gcrypt="no"
2967             fi
2968             pass="yes"
2969         fi
2970     fi
2971     if test "$pass" = "yes"
2972     then
2973         cat > $TMPC << EOF
2974 #include <nettle/xts.h>
2975 int main(void) {
2976   return 0;
2977 }
2978 EOF
2979         if compile_prog "$nettle_cflags" "$nettle_libs" ; then
2980             nettle_xts=yes
2981             qemu_private_xts=no
2982         fi
2983     fi
2984     if test "$pass" = "no" && test "$nettle" = "yes"; then
2985         feature_not_found "nettle" "Install nettle devel >= 2.7.1"
2986     else
2987         nettle="$pass"
2988     fi
2989 fi
2990
2991 if test "$gcrypt" != "no"; then
2992     pass="no"
2993     if has_libgcrypt; then
2994         gcrypt_cflags=$(libgcrypt-config --cflags)
2995         gcrypt_libs=$(libgcrypt-config --libs)
2996         # Debian has removed -lgpg-error from libgcrypt-config
2997         # as it "spreads unnecessary dependencies" which in
2998         # turn breaks static builds...
2999         if test "$static" = "yes"
3000         then
3001             gcrypt_libs="$gcrypt_libs -lgpg-error"
3002         fi
3003
3004         # Link test to make sure the given libraries work (e.g for static).
3005         write_c_skeleton
3006         if compile_prog "" "$gcrypt_libs" ; then
3007             pass="yes"
3008         fi
3009     fi
3010     if test "$pass" = "yes"; then
3011         gcrypt="yes"
3012         cat > $TMPC << EOF
3013 #include <gcrypt.h>
3014 int main(void) {
3015   gcry_mac_hd_t handle;
3016   gcry_mac_open(&handle, GCRY_MAC_HMAC_MD5,
3017                 GCRY_MAC_FLAG_SECURE, NULL);
3018   return 0;
3019 }
3020 EOF
3021         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3022             gcrypt_hmac=yes
3023         fi
3024         cat > $TMPC << EOF
3025 #include <gcrypt.h>
3026 int main(void) {
3027   gcry_cipher_hd_t handle;
3028   gcry_cipher_open(&handle, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_XTS, 0);
3029   return 0;
3030 }
3031 EOF
3032         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3033             gcrypt_xts=yes
3034             qemu_private_xts=no
3035         fi
3036     elif test "$gcrypt" = "yes"; then
3037         feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
3038     else
3039         gcrypt="no"
3040     fi
3041 fi
3042
3043
3044 if test "$gcrypt" = "yes" && test "$nettle" = "yes"
3045 then
3046     error_exit "Only one of gcrypt & nettle can be enabled"
3047 fi
3048
3049 ##########################################
3050 # libtasn1 - only for the TLS creds/session test suite
3051
3052 tasn1=yes
3053 tasn1_cflags=""
3054 tasn1_libs=""
3055 if $pkg_config --exists "libtasn1"; then
3056     tasn1_cflags=$($pkg_config --cflags libtasn1)
3057     tasn1_libs=$($pkg_config --libs libtasn1)
3058 else
3059     tasn1=no
3060 fi
3061
3062
3063 ##########################################
3064 # PAM probe
3065
3066 if test "$auth_pam" != "no"; then
3067     cat > $TMPC <<EOF
3068 #include <security/pam_appl.h>
3069 #include <stdio.h>
3070 int main(void) {
3071    const char *service_name = "qemu";
3072    const char *user = "frank";
3073    const struct pam_conv pam_conv = { 0 };
3074    pam_handle_t *pamh = NULL;
3075    pam_start(service_name, user, &pam_conv, &pamh);
3076    return 0;
3077 }
3078 EOF
3079     if compile_prog "" "-lpam" ; then
3080         auth_pam=yes
3081     else
3082         if test "$auth_pam" = "yes"; then
3083             feature_not_found "PAM" "Install PAM development package"
3084         else
3085             auth_pam=no
3086         fi
3087     fi
3088 fi
3089
3090 ##########################################
3091 # getifaddrs (for tests/test-io-channel-socket )
3092
3093 have_ifaddrs_h=yes
3094 if ! check_include "ifaddrs.h" ; then
3095   have_ifaddrs_h=no
3096 fi
3097
3098 #########################################
3099 # libdrm check
3100 have_drm_h=no
3101 if check_include "libdrm/drm.h" ; then
3102     have_drm_h=yes
3103 fi
3104
3105 #########################################
3106 # sys/signal.h check
3107 have_sys_signal_h=no
3108 if check_include "sys/signal.h" ; then
3109   have_sys_signal_h=yes
3110 fi
3111
3112 ##########################################
3113 # VTE probe
3114
3115 if test "$vte" != "no"; then
3116     vteminversion="0.32.0"
3117     if $pkg_config --exists "vte-2.91"; then
3118       vtepackage="vte-2.91"
3119     else
3120       vtepackage="vte-2.90"
3121     fi
3122     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
3123         vte_cflags=$($pkg_config --cflags $vtepackage)
3124         vte_libs=$($pkg_config --libs $vtepackage)
3125         vteversion=$($pkg_config --modversion $vtepackage)
3126         vte="yes"
3127     elif test "$vte" = "yes"; then
3128         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
3129     else
3130         vte="no"
3131     fi
3132 fi
3133
3134 ##########################################
3135 # RDMA needs OpenFabrics libraries
3136 if test "$rdma" != "no" ; then
3137   cat > $TMPC <<EOF
3138 #include <rdma/rdma_cma.h>
3139 int main(void) { return 0; }
3140 EOF
3141   rdma_libs="-lrdmacm -libverbs -libumad"
3142   if compile_prog "" "$rdma_libs" ; then
3143     rdma="yes"
3144   else
3145     if test "$rdma" = "yes" ; then
3146         error_exit \
3147             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
3148             " Your options:" \
3149             "  (1) Fast: Install infiniband packages (devel) from your distro." \
3150             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
3151             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
3152     fi
3153     rdma="no"
3154   fi
3155 fi
3156
3157 ##########################################
3158 # PVRDMA detection
3159
3160 cat > $TMPC <<EOF &&
3161 #include <sys/mman.h>
3162
3163 int
3164 main(void)
3165 {
3166     char buf = 0;
3167     void *addr = &buf;
3168     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3169
3170     return 0;
3171 }
3172 EOF
3173
3174 if test "$rdma" = "yes" ; then
3175     case "$pvrdma" in
3176     "")
3177         if compile_prog "" ""; then
3178             pvrdma="yes"
3179         else
3180             pvrdma="no"
3181         fi
3182         ;;
3183     "yes")
3184         if ! compile_prog "" ""; then
3185             error_exit "PVRDMA is not supported since mremap is not implemented"
3186         fi
3187         pvrdma="yes"
3188         ;;
3189     "no")
3190         pvrdma="no"
3191         ;;
3192     esac
3193 else
3194     if test "$pvrdma" = "yes" ; then
3195         error_exit "PVRDMA requires rdma suppport"
3196     fi
3197     pvrdma="no"
3198 fi
3199
3200 # Let's see if enhanced reg_mr is supported
3201 if test "$pvrdma" = "yes" ; then
3202
3203 cat > $TMPC <<EOF &&
3204 #include <infiniband/verbs.h>
3205
3206 int
3207 main(void)
3208 {
3209     struct ibv_mr *mr;
3210     struct ibv_pd *pd = NULL;
3211     size_t length = 10;
3212     uint64_t iova = 0;
3213     int access = 0;
3214     void *addr = NULL;
3215
3216     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
3217
3218     ibv_dereg_mr(mr);
3219
3220     return 0;
3221 }
3222 EOF
3223     if ! compile_prog "" "-libverbs"; then
3224         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
3225     fi
3226 fi
3227
3228 ##########################################
3229 # xfsctl() probe, used for file-posix.c
3230 if test "$xfs" != "no" ; then
3231   cat > $TMPC << EOF
3232 #include <stddef.h>  /* NULL */
3233 #include <xfs/xfs.h>
3234 int main(void)
3235 {
3236     xfsctl(NULL, 0, 0, NULL);
3237     return 0;
3238 }
3239 EOF
3240   if compile_prog "" "" ; then
3241     xfs="yes"
3242   else
3243     if test "$xfs" = "yes" ; then
3244       feature_not_found "xfs" "Install xfsprogs/xfslibs devel"
3245     fi
3246     xfs=no
3247   fi
3248 fi
3249
3250 ##########################################
3251 # vde libraries probe
3252 if test "$vde" != "no" ; then
3253   vde_libs="-lvdeplug"
3254   cat > $TMPC << EOF
3255 #include <libvdeplug.h>
3256 int main(void)
3257 {
3258     struct vde_open_args a = {0, 0, 0};
3259     char s[] = "";
3260     vde_open(s, s, &a);
3261     return 0;
3262 }
3263 EOF
3264   if compile_prog "" "$vde_libs" ; then
3265     vde=yes
3266   else
3267     if test "$vde" = "yes" ; then
3268       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3269     fi
3270     vde=no
3271   fi
3272 fi
3273
3274 ##########################################
3275 # netmap support probe
3276 # Apart from looking for netmap headers, we make sure that the host API version
3277 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3278 # a minor/major version number. Minor new features will be marked with values up
3279 # to 15, and if something happens that requires a change to the backend we will
3280 # move above 15, submit the backend fixes and modify this two bounds.
3281 if test "$netmap" != "no" ; then
3282   cat > $TMPC << EOF
3283 #include <inttypes.h>
3284 #include <net/if.h>
3285 #include <net/netmap.h>
3286 #include <net/netmap_user.h>
3287 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3288 #error
3289 #endif
3290 int main(void) { return 0; }
3291 EOF
3292   if compile_prog "" "" ; then
3293     netmap=yes
3294   else
3295     if test "$netmap" = "yes" ; then
3296       feature_not_found "netmap"
3297     fi
3298     netmap=no
3299   fi
3300 fi
3301
3302 ##########################################
3303 # libcap-ng library probe
3304 if test "$cap_ng" != "no" ; then
3305   cap_libs="-lcap-ng"
3306   cat > $TMPC << EOF
3307 #include <cap-ng.h>
3308 int main(void)
3309 {
3310     capng_capability_to_name(CAPNG_EFFECTIVE);
3311     return 0;
3312 }
3313 EOF
3314   if compile_prog "" "$cap_libs" ; then
3315     cap_ng=yes
3316   else
3317     if test "$cap_ng" = "yes" ; then
3318       feature_not_found "cap_ng" "Install libcap-ng devel"
3319     fi
3320     cap_ng=no
3321   fi
3322 fi
3323
3324 ##########################################
3325 # Sound support libraries probe
3326
3327 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3328 for drv in $audio_drv_list; do
3329     case $drv in
3330     alsa | try-alsa)
3331     if $pkg_config alsa --exists; then
3332         alsa_libs=$($pkg_config alsa --libs)
3333         alsa_cflags=$($pkg_config alsa --cflags)
3334         alsa=yes
3335         if test "$drv" = "try-alsa"; then
3336             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3337         fi
3338     else
3339         if test "$drv" = "try-alsa"; then
3340             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3341         else
3342             error_exit "$drv check failed" \
3343                 "Make sure to have the $drv libs and headers installed."
3344         fi
3345     fi
3346     ;;
3347
3348     pa | try-pa)
3349     if $pkg_config libpulse --exists; then
3350         libpulse=yes
3351         pulse_libs=$($pkg_config libpulse --libs)
3352         pulse_cflags=$($pkg_config libpulse --cflags)
3353         if test "$drv" = "try-pa"; then
3354             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3355         fi
3356     else
3357         if test "$drv" = "try-pa"; then
3358             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3359         else
3360             error_exit "$drv check failed" \
3361                 "Make sure to have the $drv libs and headers installed."
3362         fi
3363     fi
3364     ;;
3365
3366     sdl)
3367     if test "$sdl" = "no"; then
3368         error_exit "sdl not found or disabled, can not use sdl audio driver"
3369     fi
3370     ;;
3371
3372     try-sdl)
3373     if test "$sdl" = "no"; then
3374         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3375     else
3376         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3377     fi
3378     ;;
3379
3380     coreaudio)
3381       coreaudio_libs="-framework CoreAudio"
3382     ;;
3383
3384     dsound)
3385       dsound_libs="-lole32 -ldxguid"
3386       audio_win_int="yes"
3387     ;;
3388
3389     oss)
3390       oss_libs="$oss_lib"
3391     ;;
3392
3393     jack | try-jack)
3394     if $pkg_config jack --exists; then
3395         libjack=yes
3396         jack_libs=$($pkg_config jack --libs)
3397         if test "$drv" = "try-jack"; then
3398             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3399         fi
3400     else
3401         if test "$drv" = "try-jack"; then
3402             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3403         else
3404             error_exit "$drv check failed" \
3405                 "Make sure to have the $drv libs and headers installed."
3406         fi
3407     fi
3408     ;;
3409
3410     *)
3411     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3412         error_exit "Unknown driver '$drv' selected" \
3413             "Possible drivers are: $audio_possible_drivers"
3414     }
3415     ;;
3416     esac
3417 done
3418
3419 ##########################################
3420 # BrlAPI probe
3421
3422 if test "$brlapi" != "no" ; then
3423   brlapi_libs="-lbrlapi"
3424   cat > $TMPC << EOF
3425 #include <brlapi.h>
3426 #include <stddef.h>
3427 int main( void ) { return brlapi__openConnection (NULL, NULL, NULL); }
3428 EOF
3429   if compile_prog "" "$brlapi_libs" ; then
3430     brlapi=yes
3431   else
3432     if test "$brlapi" = "yes" ; then
3433       feature_not_found "brlapi" "Install brlapi devel"
3434     fi
3435     brlapi=no
3436   fi
3437 fi
3438
3439 ##########################################
3440 # curl probe
3441 if test "$curl" != "no" ; then
3442   if $pkg_config libcurl --exists; then
3443     curlconfig="$pkg_config libcurl"
3444   else
3445     curlconfig=curl-config
3446   fi
3447   cat > $TMPC << EOF
3448 #include <curl/curl.h>
3449 int main(void) { curl_easy_init(); curl_multi_setopt(0, 0, 0); return 0; }
3450 EOF
3451   curl_cflags=$($curlconfig --cflags 2>/dev/null)
3452   curl_libs=$($curlconfig --libs 2>/dev/null)
3453   if compile_prog "$curl_cflags" "$curl_libs" ; then
3454     curl=yes
3455   else
3456     if test "$curl" = "yes" ; then
3457       feature_not_found "curl" "Install libcurl devel"
3458     fi
3459     curl=no
3460   fi
3461 fi # test "$curl"
3462
3463 ##########################################
3464 # glib support probe
3465
3466 glib_req_ver=2.48
3467 glib_modules=gthread-2.0
3468 if test "$modules" = yes; then
3469     glib_modules="$glib_modules gmodule-export-2.0"
3470 fi
3471 if test "$plugins" = yes; then
3472     glib_modules="$glib_modules gmodule-2.0"
3473 fi
3474
3475 for i in $glib_modules; do
3476     if $pkg_config --atleast-version=$glib_req_ver $i; then
3477         glib_cflags=$($pkg_config --cflags $i)
3478         glib_libs=$($pkg_config --libs $i)
3479     else
3480         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3481     fi
3482 done
3483
3484 # This workaround is required due to a bug in pkg-config file for glib as it
3485 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3486
3487 if test "$static" = yes && test "$mingw32" = yes; then
3488     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
3489 fi
3490
3491 if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3492     gio_cflags=$($pkg_config --cflags gio-2.0)
3493     gio_libs=$($pkg_config --libs gio-2.0)
3494     gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3495     if [ ! -x "$gdbus_codegen" ]; then
3496         gdbus_codegen=
3497     fi
3498     # Check that the libraries actually work -- Ubuntu 18.04 ships
3499     # with pkg-config --static --libs data for gio-2.0 that is missing
3500     # -lblkid and will give a link error.
3501     write_c_skeleton
3502     if compile_prog "" "gio_libs" ; then
3503         gio=yes
3504     else
3505         gio=no
3506     fi
3507 else
3508     gio=no
3509 fi
3510
3511 if $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3512     gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3513     gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3514 fi
3515
3516 # Sanity check that the current size_t matches the
3517 # size that glib thinks it should be. This catches
3518 # problems on multi-arch where people try to build
3519 # 32-bit QEMU while pointing at 64-bit glib headers
3520 cat > $TMPC <<EOF
3521 #include <glib.h>
3522 #include <unistd.h>
3523
3524 #define QEMU_BUILD_BUG_ON(x) \
3525   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3526
3527 int main(void) {
3528    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3529    return 0;
3530 }
3531 EOF
3532
3533 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
3534     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3535                "You probably need to set PKG_CONFIG_LIBDIR"\
3536                "to point to the right pkg-config files for your"\
3537                "build target"
3538 fi
3539
3540 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3541 cat > $TMPC << EOF
3542 #include <glib.h>
3543 int main(void) { return 0; }
3544 EOF
3545 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3546     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3547         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3548         CONFIGURE_CFLAGS="-Wno-unknown-attributes $CONFIGURE_CFLAGS"
3549     fi
3550 fi
3551
3552 # Silence clang warnings triggered by glib < 2.57.2
3553 cat > $TMPC << EOF
3554 #include <glib.h>
3555 typedef struct Foo {
3556     int i;
3557 } Foo;
3558 static void foo_free(Foo *f)
3559 {
3560     g_free(f);
3561 }
3562 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3563 int main(void) { return 0; }
3564 EOF
3565 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3566     if cc_has_warning_flag "-Wno-unused-function"; then
3567         glib_cflags="$glib_cflags -Wno-unused-function"
3568         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
3569     fi
3570 fi
3571
3572 ##########################################
3573 # SHA command probe for modules
3574 if test "$modules" = yes; then
3575     shacmd_probe="sha1sum sha1 shasum"
3576     for c in $shacmd_probe; do
3577         if has $c; then
3578             shacmd="$c"
3579             break
3580         fi
3581     done
3582     if test "$shacmd" = ""; then
3583         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3584     fi
3585 fi
3586
3587 ##########################################
3588 # pthread probe
3589 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3590
3591 pthread=no
3592 cat > $TMPC << EOF
3593 #include <pthread.h>
3594 static void *f(void *p) { return NULL; }
3595 int main(void) {
3596   pthread_t thread;
3597   pthread_create(&thread, 0, f, 0);
3598   return 0;
3599 }
3600 EOF
3601 if compile_prog "" "" ; then
3602   pthread=yes
3603 else
3604   for pthread_lib in $PTHREADLIBS_LIST; do
3605     if compile_prog "" "$pthread_lib" ; then
3606       pthread=yes
3607       found=no
3608       for lib_entry in $LIBS; do
3609         if test "$lib_entry" = "$pthread_lib"; then
3610           found=yes
3611           break
3612         fi
3613       done
3614       if test "$found" = "no"; then
3615         LIBS="$pthread_lib $LIBS"
3616       fi
3617       break
3618     fi
3619   done
3620 fi
3621
3622 if test "$mingw32" != yes && test "$pthread" = no; then
3623   error_exit "pthread check failed" \
3624       "Make sure to have the pthread libs and headers installed."
3625 fi
3626
3627 # check for pthread_setname_np with thread id
3628 pthread_setname_np_w_tid=no
3629 cat > $TMPC << EOF
3630 #include <pthread.h>
3631
3632 static void *f(void *p) { return NULL; }
3633 int main(void)
3634 {
3635     pthread_t thread;
3636     pthread_create(&thread, 0, f, 0);
3637     pthread_setname_np(thread, "QEMU");
3638     return 0;
3639 }
3640 EOF
3641 if compile_prog "" "$pthread_lib" ; then
3642   pthread_setname_np_w_tid=yes
3643 fi
3644
3645 # check for pthread_setname_np without thread id
3646 pthread_setname_np_wo_tid=no
3647 cat > $TMPC << EOF
3648 #include <pthread.h>
3649
3650 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
3651 int main(void)
3652 {
3653     pthread_t thread;
3654     pthread_create(&thread, 0, f, 0);
3655     return 0;
3656 }
3657 EOF
3658 if compile_prog "" "$pthread_lib" ; then
3659   pthread_setname_np_wo_tid=yes
3660 fi
3661
3662 ##########################################
3663 # rbd probe
3664 if test "$rbd" != "no" ; then
3665   cat > $TMPC <<EOF
3666 #include <stdio.h>
3667 #include <rbd/librbd.h>
3668 int main(void) {
3669     rados_t cluster;
3670     rados_create(&cluster, NULL);
3671     return 0;
3672 }
3673 EOF
3674   rbd_libs="-lrbd -lrados"
3675   if compile_prog "" "$rbd_libs" ; then
3676     rbd=yes
3677   else
3678     if test "$rbd" = "yes" ; then
3679       feature_not_found "rados block device" "Install librbd/ceph devel"
3680     fi
3681     rbd=no
3682   fi
3683 fi
3684
3685 ##########################################
3686 # libssh probe
3687 if test "$libssh" != "no" ; then
3688   if $pkg_config --exists libssh; then
3689     libssh_cflags=$($pkg_config libssh --cflags)
3690     libssh_libs=$($pkg_config libssh --libs)
3691     libssh=yes
3692   else
3693     if test "$libssh" = "yes" ; then
3694       error_exit "libssh required for --enable-libssh"
3695     fi
3696     libssh=no
3697   fi
3698 fi
3699
3700 ##########################################
3701 # Check for libssh 0.8
3702 # This is done like this instead of using the LIBSSH_VERSION_* and
3703 # SSH_VERSION_* macros because some distributions in the past shipped
3704 # snapshots of the future 0.8 from Git, and those snapshots did not
3705 # have updated version numbers (still referring to 0.7.0).
3706
3707 if test "$libssh" = "yes"; then
3708   cat > $TMPC <<EOF
3709 #include <libssh/libssh.h>
3710 int main(void) { return ssh_get_server_publickey(NULL, NULL); }
3711 EOF
3712   if compile_prog "$libssh_cflags" "$libssh_libs"; then
3713     libssh_cflags="-DHAVE_LIBSSH_0_8 $libssh_cflags"
3714   fi
3715 fi
3716
3717 ##########################################
3718 # linux-aio probe
3719
3720 if test "$linux_aio" != "no" ; then
3721   cat > $TMPC <<EOF
3722 #include <libaio.h>
3723 #include <sys/eventfd.h>
3724 #include <stddef.h>
3725 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
3726 EOF
3727   if compile_prog "" "-laio" ; then
3728     linux_aio=yes
3729   else
3730     if test "$linux_aio" = "yes" ; then
3731       feature_not_found "linux AIO" "Install libaio devel"
3732     fi
3733     linux_aio=no
3734   fi
3735 fi
3736 ##########################################
3737 # linux-io-uring probe
3738
3739 if test "$linux_io_uring" != "no" ; then
3740   if $pkg_config liburing; then
3741     linux_io_uring_cflags=$($pkg_config --cflags liburing)
3742     linux_io_uring_libs=$($pkg_config --libs liburing)
3743     linux_io_uring=yes
3744   else
3745     if test "$linux_io_uring" = "yes" ; then
3746       feature_not_found "linux io_uring" "Install liburing devel"
3747     fi
3748     linux_io_uring=no
3749   fi
3750 fi
3751
3752 ##########################################
3753 # TPM emulation is only on POSIX
3754
3755 if test "$tpm" = ""; then
3756   if test "$mingw32" = "yes"; then
3757     tpm=no
3758   else
3759     tpm=yes
3760   fi
3761 elif test "$tpm" = "yes"; then
3762   if test "$mingw32" = "yes" ; then
3763     error_exit "TPM emulation only available on POSIX systems"
3764   fi
3765 fi
3766
3767 ##########################################
3768 # attr probe
3769
3770 libattr_libs=
3771 if test "$attr" != "no" ; then
3772   cat > $TMPC <<EOF
3773 #include <stdio.h>
3774 #include <sys/types.h>
3775 #ifdef CONFIG_LIBATTR
3776 #include <attr/xattr.h>
3777 #else
3778 #include <sys/xattr.h>
3779 #endif
3780 int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }
3781 EOF
3782   if compile_prog "" "" ; then
3783     attr=yes
3784   # Older distros have <attr/xattr.h>, and need -lattr:
3785   elif compile_prog "-DCONFIG_LIBATTR" "-lattr" ; then
3786     attr=yes
3787     libattr_libs="-lattr"
3788     libattr=yes
3789   else
3790     if test "$attr" = "yes" ; then
3791       feature_not_found "ATTR" "Install libc6 or libattr devel"
3792     fi
3793     attr=no
3794   fi
3795 fi
3796
3797 ##########################################
3798 # iovec probe
3799 cat > $TMPC <<EOF
3800 #include <sys/types.h>
3801 #include <sys/uio.h>
3802 #include <unistd.h>
3803 int main(void) { return sizeof(struct iovec); }
3804 EOF
3805 iovec=no
3806 if compile_prog "" "" ; then
3807   iovec=yes
3808 fi
3809
3810 ##########################################
3811 # preadv probe
3812 cat > $TMPC <<EOF
3813 #include <sys/types.h>
3814 #include <sys/uio.h>
3815 #include <unistd.h>
3816 int main(void) { return preadv(0, 0, 0, 0); }
3817 EOF
3818 preadv=no
3819 if compile_prog "" "" ; then
3820   preadv=yes
3821 fi
3822
3823 ##########################################
3824 # fdt probe
3825
3826 case "$fdt" in
3827   auto | enabled | internal)
3828     # Simpler to always update submodule, even if not needed.
3829     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
3830       git_submodules="${git_submodules} dtc"
3831     fi
3832     ;;
3833 esac
3834
3835 ##########################################
3836 # opengl probe (for sdl2, gtk, milkymist-tmu2)
3837
3838 gbm="no"
3839 if $pkg_config gbm; then
3840     gbm_cflags="$($pkg_config --cflags gbm)"
3841     gbm_libs="$($pkg_config --libs gbm)"
3842     gbm="yes"
3843 fi
3844
3845 if test "$opengl" != "no" ; then
3846   opengl_pkgs="epoxy gbm"
3847   if $pkg_config $opengl_pkgs; then
3848     opengl_cflags="$($pkg_config --cflags $opengl_pkgs)"
3849     opengl_libs="$($pkg_config --libs $opengl_pkgs)"
3850     opengl=yes
3851     if test "$gtk" = "yes" && $pkg_config --exists "$gtkpackage >= 3.16"; then
3852         gtk_gl="yes"
3853     fi
3854   else
3855     if test "$opengl" = "yes" ; then
3856       feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
3857     fi
3858     opengl_cflags=""
3859     opengl_libs=""
3860     opengl=no
3861   fi
3862 fi
3863
3864 if test "$opengl" = "yes"; then
3865   cat > $TMPC << EOF
3866 #include <epoxy/egl.h>
3867 #ifndef EGL_MESA_image_dma_buf_export
3868 # error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
3869 #endif
3870 int main(void) { return 0; }
3871 EOF
3872   if compile_prog "" "" ; then
3873     opengl_dmabuf=yes
3874   fi
3875 fi
3876
3877 if test "$opengl" = "yes" && test "$have_x11" = "yes"; then
3878   for target in $target_list; do
3879     case $target in
3880       lm32-softmmu) # milkymist-tmu2 requires X11 and OpenGL
3881         need_x11=yes
3882       ;;
3883     esac
3884   done
3885 fi
3886
3887 ##########################################
3888 # libxml2 probe
3889 if test "$libxml2" != "no" ; then
3890     if $pkg_config --exists libxml-2.0; then
3891         libxml2="yes"
3892         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
3893         libxml2_libs=$($pkg_config --libs libxml-2.0)
3894     else
3895         if test "$libxml2" = "yes"; then
3896             feature_not_found "libxml2" "Install libxml2 devel"
3897         fi
3898         libxml2="no"
3899     fi
3900 fi
3901
3902 ##########################################
3903 # glusterfs probe
3904 if test "$glusterfs" != "no" ; then
3905   if $pkg_config --atleast-version=3 glusterfs-api; then
3906     glusterfs="yes"
3907     glusterfs_cflags=$($pkg_config --cflags glusterfs-api)
3908     glusterfs_libs=$($pkg_config --libs glusterfs-api)
3909     if $pkg_config --atleast-version=4 glusterfs-api; then
3910       glusterfs_xlator_opt="yes"
3911     fi
3912     if $pkg_config --atleast-version=5 glusterfs-api; then
3913       glusterfs_discard="yes"
3914     fi
3915     if $pkg_config --atleast-version=6 glusterfs-api; then
3916       glusterfs_fallocate="yes"
3917       glusterfs_zerofill="yes"
3918     fi
3919     cat > $TMPC << EOF
3920 #include <glusterfs/api/glfs.h>
3921
3922 int
3923 main(void)
3924 {
3925         /* new glfs_ftruncate() passes two additional args */
3926         return glfs_ftruncate(NULL, 0, NULL, NULL);
3927 }
3928 EOF
3929     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
3930       glusterfs_ftruncate_has_stat="yes"
3931     fi
3932     cat > $TMPC << EOF
3933 #include <glusterfs/api/glfs.h>
3934
3935 /* new glfs_io_cbk() passes two additional glfs_stat structs */
3936 static void
3937 glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
3938 {}
3939
3940 int
3941 main(void)
3942 {
3943         glfs_io_cbk iocb = &glusterfs_iocb;
3944         iocb(NULL, 0 , NULL, NULL, NULL);
3945         return 0;
3946 }
3947 EOF
3948     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
3949       glusterfs_iocb_has_stat="yes"
3950     fi
3951   else
3952     if test "$glusterfs" = "yes" ; then
3953       feature_not_found "GlusterFS backend support" \
3954           "Install glusterfs-api devel >= 3"
3955     fi
3956     glusterfs="no"
3957   fi
3958 fi
3959
3960 # Check for inotify functions when we are building linux-user
3961 # emulator.  This is done because older glibc versions don't
3962 # have syscall stubs for these implemented.  In that case we
3963 # don't provide them even if kernel supports them.
3964 #
3965 inotify=no
3966 cat > $TMPC << EOF
3967 #include <sys/inotify.h>
3968
3969 int
3970 main(void)
3971 {
3972         /* try to start inotify */
3973         return inotify_init();
3974 }
3975 EOF
3976 if compile_prog "" "" ; then
3977   inotify=yes
3978 fi
3979
3980 inotify1=no
3981 cat > $TMPC << EOF
3982 #include <sys/inotify.h>
3983
3984 int
3985 main(void)
3986 {
3987     /* try to start inotify */
3988     return inotify_init1(0);
3989 }
3990 EOF
3991 if compile_prog "" "" ; then
3992   inotify1=yes
3993 fi
3994
3995 # check if pipe2 is there
3996 pipe2=no
3997 cat > $TMPC << EOF
3998 #include <unistd.h>
3999 #include <fcntl.h>
4000
4001 int main(void)
4002 {
4003     int pipefd[2];
4004     return pipe2(pipefd, O_CLOEXEC);
4005 }
4006 EOF
4007 if compile_prog "" "" ; then
4008   pipe2=yes
4009 fi
4010
4011 # check if accept4 is there
4012 accept4=no
4013 cat > $TMPC << EOF
4014 #include <sys/socket.h>
4015 #include <stddef.h>
4016
4017 int main(void)
4018 {
4019     accept4(0, NULL, NULL, SOCK_CLOEXEC);
4020     return 0;
4021 }
4022 EOF
4023 if compile_prog "" "" ; then
4024   accept4=yes
4025 fi
4026
4027 # check if tee/splice is there. vmsplice was added same time.
4028 splice=no
4029 cat > $TMPC << EOF
4030 #include <unistd.h>
4031 #include <fcntl.h>
4032 #include <limits.h>
4033
4034 int main(void)
4035 {
4036     int len, fd = 0;
4037     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
4038     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
4039     return 0;
4040 }
4041 EOF
4042 if compile_prog "" "" ; then
4043   splice=yes
4044 fi
4045
4046 ##########################################
4047 # libnuma probe
4048
4049 if test "$numa" != "no" ; then
4050   cat > $TMPC << EOF
4051 #include <numa.h>
4052 int main(void) { return numa_available(); }
4053 EOF
4054
4055   if compile_prog "" "-lnuma" ; then
4056     numa=yes
4057     numa_libs="-lnuma"
4058   else
4059     if test "$numa" = "yes" ; then
4060       feature_not_found "numa" "install numactl devel"
4061     fi
4062     numa=no
4063   fi
4064 fi
4065
4066 malloc=system
4067 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
4068     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
4069     exit 1
4070 elif test "$tcmalloc" = "yes" ; then
4071     malloc=tcmalloc
4072 elif test "$jemalloc" = "yes" ; then
4073     malloc=jemalloc
4074 fi
4075
4076 ##########################################
4077 # signalfd probe
4078 signalfd="no"
4079 cat > $TMPC << EOF
4080 #include <unistd.h>
4081 #include <sys/syscall.h>
4082 #include <signal.h>
4083 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
4084 EOF
4085
4086 if compile_prog "" "" ; then
4087   signalfd=yes
4088 fi
4089
4090 # check if optreset global is declared by <getopt.h>
4091 optreset="no"
4092 cat > $TMPC << EOF
4093 #include <getopt.h>
4094 int main(void) { return optreset; }
4095 EOF
4096
4097 if compile_prog "" "" ; then
4098   optreset=yes
4099 fi
4100
4101 # check if eventfd is supported
4102 eventfd=no
4103 cat > $TMPC << EOF
4104 #include <sys/eventfd.h>
4105
4106 int main(void)
4107 {
4108     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
4109 }
4110 EOF
4111 if compile_prog "" "" ; then
4112   eventfd=yes
4113 fi
4114
4115 # check if memfd is supported
4116 memfd=no
4117 cat > $TMPC << EOF
4118 #include <sys/mman.h>
4119
4120 int main(void)
4121 {
4122     return memfd_create("foo", MFD_ALLOW_SEALING);
4123 }
4124 EOF
4125 if compile_prog "" "" ; then
4126   memfd=yes
4127 fi
4128
4129 # check for usbfs
4130 have_usbfs=no
4131 if test "$linux_user" = "yes"; then
4132   cat > $TMPC << EOF
4133 #include <linux/usbdevice_fs.h>
4134
4135 #ifndef USBDEVFS_GET_CAPABILITIES
4136 #error "USBDEVFS_GET_CAPABILITIES undefined"
4137 #endif
4138
4139 #ifndef USBDEVFS_DISCONNECT_CLAIM
4140 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
4141 #endif
4142
4143 int main(void)
4144 {
4145     return 0;
4146 }
4147 EOF
4148   if compile_prog "" ""; then
4149     have_usbfs=yes
4150   fi
4151 fi
4152
4153 # check for fallocate
4154 fallocate=no
4155 cat > $TMPC << EOF
4156 #include <fcntl.h>
4157
4158 int main(void)
4159 {
4160     fallocate(0, 0, 0, 0);
4161     return 0;
4162 }
4163 EOF
4164 if compile_prog "" "" ; then
4165   fallocate=yes
4166 fi
4167
4168 # check for fallocate hole punching
4169 fallocate_punch_hole=no
4170 cat > $TMPC << EOF
4171 #include <fcntl.h>
4172 #include <linux/falloc.h>
4173
4174 int main(void)
4175 {
4176     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
4177     return 0;
4178 }
4179 EOF
4180 if compile_prog "" "" ; then
4181   fallocate_punch_hole=yes
4182 fi
4183
4184 # check that fallocate supports range zeroing inside the file
4185 fallocate_zero_range=no
4186 cat > $TMPC << EOF
4187 #include <fcntl.h>
4188 #include <linux/falloc.h>
4189
4190 int main(void)
4191 {
4192     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
4193     return 0;
4194 }
4195 EOF
4196 if compile_prog "" "" ; then
4197   fallocate_zero_range=yes
4198 fi
4199
4200 # check for posix_fallocate
4201 posix_fallocate=no
4202 cat > $TMPC << EOF
4203 #include <fcntl.h>
4204
4205 int main(void)
4206 {
4207     posix_fallocate(0, 0, 0);
4208     return 0;
4209 }
4210 EOF
4211 if compile_prog "" "" ; then
4212     posix_fallocate=yes
4213 fi
4214
4215 # check for sync_file_range
4216 sync_file_range=no
4217 cat > $TMPC << EOF
4218 #include <fcntl.h>
4219
4220 int main(void)
4221 {
4222     sync_file_range(0, 0, 0, 0);
4223     return 0;
4224 }
4225 EOF
4226 if compile_prog "" "" ; then
4227   sync_file_range=yes
4228 fi
4229
4230 # check for linux/fiemap.h and FS_IOC_FIEMAP
4231 fiemap=no
4232 cat > $TMPC << EOF
4233 #include <sys/ioctl.h>
4234 #include <linux/fs.h>
4235 #include <linux/fiemap.h>
4236
4237 int main(void)
4238 {
4239     ioctl(0, FS_IOC_FIEMAP, 0);
4240     return 0;
4241 }
4242 EOF
4243 if compile_prog "" "" ; then
4244   fiemap=yes
4245 fi
4246
4247 # check for dup3
4248 dup3=no
4249 cat > $TMPC << EOF
4250 #include <unistd.h>
4251
4252 int main(void)
4253 {
4254     dup3(0, 0, 0);
4255     return 0;
4256 }
4257 EOF
4258 if compile_prog "" "" ; then
4259   dup3=yes
4260 fi
4261
4262 # check for ppoll support
4263 ppoll=no
4264 cat > $TMPC << EOF
4265 #include <poll.h>
4266
4267 int main(void)
4268 {
4269     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
4270     ppoll(&pfd, 1, 0, 0);
4271     return 0;
4272 }
4273 EOF
4274 if compile_prog "" "" ; then
4275   ppoll=yes
4276 fi
4277
4278 # check for prctl(PR_SET_TIMERSLACK , ... ) support
4279 prctl_pr_set_timerslack=no
4280 cat > $TMPC << EOF
4281 #include <sys/prctl.h>
4282
4283 int main(void)
4284 {
4285     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
4286     return 0;
4287 }
4288 EOF
4289 if compile_prog "" "" ; then
4290   prctl_pr_set_timerslack=yes
4291 fi
4292
4293 # check for epoll support
4294 epoll=no
4295 cat > $TMPC << EOF
4296 #include <sys/epoll.h>
4297
4298 int main(void)
4299 {
4300     epoll_create(0);
4301     return 0;
4302 }
4303 EOF
4304 if compile_prog "" "" ; then
4305   epoll=yes
4306 fi
4307
4308 # epoll_create1 is a later addition
4309 # so we must check separately for its presence
4310 epoll_create1=no
4311 cat > $TMPC << EOF
4312 #include <sys/epoll.h>
4313
4314 int main(void)
4315 {
4316     /* Note that we use epoll_create1 as a value, not as
4317      * a function being called. This is necessary so that on
4318      * old SPARC glibc versions where the function was present in
4319      * the library but not declared in the header file we will
4320      * fail the configure check. (Otherwise we will get a compiler
4321      * warning but not an error, and will proceed to fail the
4322      * qemu compile where we compile with -Werror.)
4323      */
4324     return (int)(uintptr_t)&epoll_create1;
4325 }
4326 EOF
4327 if compile_prog "" "" ; then
4328   epoll_create1=yes
4329 fi
4330
4331 # check for sendfile support
4332 sendfile=no
4333 cat > $TMPC << EOF
4334 #include <sys/sendfile.h>
4335
4336 int main(void)
4337 {
4338     return sendfile(0, 0, 0, 0);
4339 }
4340 EOF
4341 if compile_prog "" "" ; then
4342   sendfile=yes
4343 fi
4344
4345 # check for timerfd support (glibc 2.8 and newer)
4346 timerfd=no
4347 cat > $TMPC << EOF
4348 #include <sys/timerfd.h>
4349
4350 int main(void)
4351 {
4352     return(timerfd_create(CLOCK_REALTIME, 0));
4353 }
4354 EOF
4355 if compile_prog "" "" ; then
4356   timerfd=yes
4357 fi
4358
4359 # check for setns and unshare support
4360 setns=no
4361 cat > $TMPC << EOF
4362 #include <sched.h>
4363
4364 int main(void)
4365 {
4366     int ret;
4367     ret = setns(0, 0);
4368     ret = unshare(0);
4369     return ret;
4370 }
4371 EOF
4372 if compile_prog "" "" ; then
4373   setns=yes
4374 fi
4375
4376 # clock_adjtime probe
4377 clock_adjtime=no
4378 cat > $TMPC <<EOF
4379 #include <time.h>
4380
4381 int main(void)
4382 {
4383     return clock_adjtime(0, 0);
4384 }
4385 EOF
4386 clock_adjtime=no
4387 if compile_prog "" "" ; then
4388   clock_adjtime=yes
4389 fi
4390
4391 # syncfs probe
4392 syncfs=no
4393 cat > $TMPC <<EOF
4394 #include <unistd.h>
4395
4396 int main(void)
4397 {
4398     return syncfs(0);
4399 }
4400 EOF
4401 syncfs=no
4402 if compile_prog "" "" ; then
4403   syncfs=yes
4404 fi
4405
4406 # check for kcov support (kernel must be 4.4+, compiled with certain options)
4407 kcov=no
4408 if check_include sys/kcov.h ; then
4409     kcov=yes
4410 fi
4411
4412 # check for btrfs filesystem support (kernel must be 3.9+)
4413 btrfs=no
4414 if check_include linux/btrfs.h ; then
4415     btrfs=yes
4416 fi
4417
4418 # Search for bswap_32 function
4419 byteswap_h=no
4420 cat > $TMPC << EOF
4421 #include <byteswap.h>
4422 int main(void) { return bswap_32(0); }
4423 EOF
4424 if compile_prog "" "" ; then
4425   byteswap_h=yes
4426 fi
4427
4428 # Search for bswap32 function
4429 bswap_h=no
4430 cat > $TMPC << EOF
4431 #include <sys/endian.h>
4432 #include <sys/types.h>
4433 #include <machine/bswap.h>
4434 int main(void) { return bswap32(0); }
4435 EOF
4436 if compile_prog "" "" ; then
4437   bswap_h=yes
4438 fi
4439
4440 ##########################################
4441 # Do we have libiscsi >= 1.9.0
4442 if test "$libiscsi" != "no" ; then
4443   if $pkg_config --atleast-version=1.9.0 libiscsi; then
4444     libiscsi="yes"
4445     libiscsi_cflags=$($pkg_config --cflags libiscsi)
4446     libiscsi_libs=$($pkg_config --libs libiscsi)
4447   else
4448     if test "$libiscsi" = "yes" ; then
4449       feature_not_found "libiscsi" "Install libiscsi >= 1.9.0"
4450     fi
4451     libiscsi="no"
4452   fi
4453 fi
4454
4455 ##########################################
4456 # Do we need librt
4457 # uClibc provides 2 versions of clock_gettime(), one with realtime
4458 # support and one without. This means that the clock_gettime() don't
4459 # need -lrt. We still need it for timer_create() so we check for this
4460 # function in addition.
4461 cat > $TMPC <<EOF
4462 #include <signal.h>
4463 #include <time.h>
4464 int main(void) {
4465   timer_create(CLOCK_REALTIME, NULL, NULL);
4466   return clock_gettime(CLOCK_REALTIME, NULL);
4467 }
4468 EOF
4469
4470 if compile_prog "" "" ; then
4471   :
4472 # we need pthread for static linking. use previous pthread test result
4473 elif compile_prog "" "$pthread_lib -lrt" ; then
4474   LIBS="$LIBS -lrt"
4475 fi
4476
4477 # Check whether we have openpty() in either libc or libutil
4478 cat > $TMPC << EOF
4479 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
4480 int main(void) { return openpty(0, 0, 0, 0, 0); }
4481 EOF
4482
4483 have_openpty="no"
4484 if compile_prog "" "" ; then
4485   have_openpty="yes"
4486 else
4487   if compile_prog "" "-lutil" ; then
4488     have_openpty="yes"
4489   fi
4490 fi
4491
4492 ##########################################
4493 # spice probe
4494 if test "$spice" != "no" ; then
4495   cat > $TMPC << EOF
4496 #include <spice.h>
4497 int main(void) { spice_server_new(); return 0; }
4498 EOF
4499   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
4500   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
4501   if $pkg_config --atleast-version=0.12.5 spice-server && \
4502      $pkg_config --atleast-version=0.12.3 spice-protocol && \
4503      compile_prog "$spice_cflags" "$spice_libs" ; then
4504     spice="yes"
4505   else
4506     if test "$spice" = "yes" ; then
4507       feature_not_found "spice" \
4508           "Install spice-server(>=0.12.5) and spice-protocol(>=0.12.3) devel"
4509     fi
4510     spice="no"
4511   fi
4512 fi
4513
4514 # check for smartcard support
4515 if test "$smartcard" != "no"; then
4516     if $pkg_config --atleast-version=2.5.1 libcacard; then
4517         libcacard_cflags=$($pkg_config --cflags libcacard)
4518         libcacard_libs=$($pkg_config --libs libcacard)
4519         smartcard="yes"
4520     else
4521         if test "$smartcard" = "yes"; then
4522             feature_not_found "smartcard" "Install libcacard devel"
4523         fi
4524         smartcard="no"
4525     fi
4526 fi
4527
4528 # check for libusb
4529 if test "$libusb" != "no" ; then
4530     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
4531         libusb="yes"
4532         libusb_cflags=$($pkg_config --cflags libusb-1.0)
4533         libusb_libs=$($pkg_config --libs libusb-1.0)
4534     else
4535         if test "$libusb" = "yes"; then
4536             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
4537         fi
4538         libusb="no"
4539     fi
4540 fi
4541
4542 # check for usbredirparser for usb network redirection support
4543 if test "$usb_redir" != "no" ; then
4544     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
4545         usb_redir="yes"
4546         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
4547         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
4548     else
4549         if test "$usb_redir" = "yes"; then
4550             feature_not_found "usb-redir" "Install usbredir devel"
4551         fi
4552         usb_redir="no"
4553     fi
4554 fi
4555
4556 ##########################################
4557 # check if we have VSS SDK headers for win
4558
4559 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4560         test "$vss_win32_sdk" != "no" ; then
4561   case "$vss_win32_sdk" in
4562     "")   vss_win32_include="-isystem $source_path" ;;
4563     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
4564           # handle path with spaces. So we symlink the headers into ".sdk/vss".
4565           vss_win32_include="-isystem $source_path/.sdk/vss"
4566           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
4567           ;;
4568     *)    vss_win32_include="-isystem $vss_win32_sdk"
4569   esac
4570   cat > $TMPC << EOF
4571 #define __MIDL_user_allocate_free_DEFINED__
4572 #include <inc/win2003/vss.h>
4573 int main(void) { return VSS_CTX_BACKUP; }
4574 EOF
4575   if compile_prog "$vss_win32_include" "" ; then
4576     guest_agent_with_vss="yes"
4577     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
4578     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
4579     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
4580   else
4581     if test "$vss_win32_sdk" != "" ; then
4582       echo "ERROR: Please download and install Microsoft VSS SDK:"
4583       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
4584       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
4585       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
4586       echo "ERROR: The headers are extracted in the directory \`inc'."
4587       feature_not_found "VSS support"
4588     fi
4589     guest_agent_with_vss="no"
4590   fi
4591 fi
4592
4593 ##########################################
4594 # lookup Windows platform SDK (if not specified)
4595 # The SDK is needed only to build .tlb (type library) file of guest agent
4596 # VSS provider from the source. It is usually unnecessary because the
4597 # pre-compiled .tlb file is included.
4598
4599 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4600         test "$guest_agent_with_vss" = "yes" ; then
4601   if test -z "$win_sdk"; then
4602     programfiles="$PROGRAMFILES"
4603     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
4604     if test -n "$programfiles"; then
4605       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
4606     else
4607       feature_not_found "Windows SDK"
4608     fi
4609   elif test "$win_sdk" = "no"; then
4610     win_sdk=""
4611   fi
4612 fi
4613
4614 ##########################################
4615 # check if mingw environment provides a recent ntddscsi.h
4616 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
4617   cat > $TMPC << EOF
4618 #include <windows.h>
4619 #include <ntddscsi.h>
4620 int main(void) {
4621 #if !defined(IOCTL_SCSI_GET_ADDRESS)
4622 #error Missing required ioctl definitions
4623 #endif
4624   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
4625   return addr.Lun;
4626 }
4627 EOF
4628   if compile_prog "" "" ; then
4629     guest_agent_ntddscsi=yes
4630     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
4631   fi
4632 fi
4633
4634 ##########################################
4635 # virgl renderer probe
4636
4637 if test "$virglrenderer" != "no" ; then
4638   cat > $TMPC << EOF
4639 #include <virglrenderer.h>
4640 int main(void) { virgl_renderer_poll(); return 0; }
4641 EOF
4642   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
4643   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
4644   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
4645   if $pkg_config virglrenderer >/dev/null 2>&1 && \
4646      compile_prog "$virgl_cflags" "$virgl_libs" ; then
4647     virglrenderer="yes"
4648   else
4649     if test "$virglrenderer" = "yes" ; then
4650       feature_not_found "virglrenderer"
4651     fi
4652     virglrenderer="no"
4653   fi
4654 fi
4655
4656 ##########################################
4657 # capstone
4658
4659 case "$capstone" in
4660   auto | enabled | internal)
4661     # Simpler to always update submodule, even if not needed.
4662     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
4663       git_submodules="${git_submodules} capstone"
4664     fi
4665     ;;
4666 esac
4667
4668 ##########################################
4669 # check if we have fdatasync
4670
4671 fdatasync=no
4672 cat > $TMPC << EOF
4673 #include <unistd.h>
4674 int main(void) {
4675 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
4676 return fdatasync(0);
4677 #else
4678 #error Not supported
4679 #endif
4680 }
4681 EOF
4682 if compile_prog "" "" ; then
4683     fdatasync=yes
4684 fi
4685
4686 ##########################################
4687 # check if we have madvise
4688
4689 madvise=no
4690 cat > $TMPC << EOF
4691 #include <sys/types.h>
4692 #include <sys/mman.h>
4693 #include <stddef.h>
4694 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
4695 EOF
4696 if compile_prog "" "" ; then
4697     madvise=yes
4698 fi
4699
4700 ##########################################
4701 # check if we have posix_madvise
4702
4703 posix_madvise=no
4704 cat > $TMPC << EOF
4705 #include <sys/mman.h>
4706 #include <stddef.h>
4707 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
4708 EOF
4709 if compile_prog "" "" ; then
4710     posix_madvise=yes
4711 fi
4712
4713 ##########################################
4714 # check if we have posix_memalign()
4715
4716 posix_memalign=no
4717 cat > $TMPC << EOF
4718 #include <stdlib.h>
4719 int main(void) {
4720     void *p;
4721     return posix_memalign(&p, 8, 8);
4722 }
4723 EOF
4724 if compile_prog "" "" ; then
4725     posix_memalign=yes
4726 fi
4727
4728 ##########################################
4729 # check if we have posix_syslog
4730
4731 posix_syslog=no
4732 cat > $TMPC << EOF
4733 #include <syslog.h>
4734 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
4735 EOF
4736 if compile_prog "" "" ; then
4737     posix_syslog=yes
4738 fi
4739
4740 ##########################################
4741 # check if we have sem_timedwait
4742
4743 sem_timedwait=no
4744 cat > $TMPC << EOF
4745 #include <semaphore.h>
4746 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
4747 EOF
4748 if compile_prog "" "" ; then
4749     sem_timedwait=yes
4750 fi
4751
4752 ##########################################
4753 # check if we have strchrnul
4754
4755 strchrnul=no
4756 cat > $TMPC << EOF
4757 #include <string.h>
4758 int main(void);
4759 // Use a haystack that the compiler shouldn't be able to constant fold
4760 char *haystack = (char*)&main;
4761 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
4762 EOF
4763 if compile_prog "" "" ; then
4764     strchrnul=yes
4765 fi
4766
4767 #########################################
4768 # check if we have st_atim
4769
4770 st_atim=no
4771 cat > $TMPC << EOF
4772 #include <sys/stat.h>
4773 #include <stddef.h>
4774 int main(void) { return offsetof(struct stat, st_atim); }
4775 EOF
4776 if compile_prog "" "" ; then
4777     st_atim=yes
4778 fi
4779
4780 ##########################################
4781 # check if trace backend exists
4782
4783 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
4784 if test "$?" -ne 0 ; then
4785   error_exit "invalid trace backends" \
4786       "Please choose supported trace backends."
4787 fi
4788
4789 ##########################################
4790 # For 'ust' backend, test if ust headers are present
4791 if have_backend "ust"; then
4792   cat > $TMPC << EOF
4793 #include <lttng/tracepoint.h>
4794 int main(void) { return 0; }
4795 EOF
4796   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
4797     if $pkg_config lttng-ust --exists; then
4798       lttng_ust_libs=$($pkg_config --libs lttng-ust)
4799     else
4800       lttng_ust_libs="-llttng-ust -ldl"
4801     fi
4802     if $pkg_config liburcu-bp --exists; then
4803       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
4804     else
4805       urcu_bp_libs="-lurcu-bp"
4806     fi
4807   else
4808     error_exit "Trace backend 'ust' missing lttng-ust header files"
4809   fi
4810 fi
4811
4812 ##########################################
4813 # For 'dtrace' backend, test if 'dtrace' command is present
4814 if have_backend "dtrace"; then
4815   if ! has 'dtrace' ; then
4816     error_exit "dtrace command is not found in PATH $PATH"
4817   fi
4818   trace_backend_stap="no"
4819   if has 'stap' ; then
4820     trace_backend_stap="yes"
4821   fi
4822 fi
4823
4824 ##########################################
4825 # check and set a backend for coroutine
4826
4827 # We prefer ucontext, but it's not always possible. The fallback
4828 # is sigcontext. On Windows the only valid backend is the Windows
4829 # specific one.
4830
4831 ucontext_works=no
4832 if test "$darwin" != "yes"; then
4833   cat > $TMPC << EOF
4834 #include <ucontext.h>
4835 #ifdef __stub_makecontext
4836 #error Ignoring glibc stub makecontext which will always fail
4837 #endif
4838 int main(void) { makecontext(0, 0, 0); return 0; }
4839 EOF
4840   if compile_prog "" "" ; then
4841     ucontext_works=yes
4842   fi
4843 fi
4844
4845 if test "$coroutine" = ""; then
4846   if test "$mingw32" = "yes"; then
4847     coroutine=win32
4848   elif test "$ucontext_works" = "yes"; then
4849     coroutine=ucontext
4850   else
4851     coroutine=sigaltstack
4852   fi
4853 else
4854   case $coroutine in
4855   windows)
4856     if test "$mingw32" != "yes"; then
4857       error_exit "'windows' coroutine backend only valid for Windows"
4858     fi
4859     # Unfortunately the user visible backend name doesn't match the
4860     # coroutine-*.c filename for this case, so we have to adjust it here.
4861     coroutine=win32
4862     ;;
4863   ucontext)
4864     if test "$ucontext_works" != "yes"; then
4865       feature_not_found "ucontext"
4866     fi
4867     ;;
4868   sigaltstack)
4869     if test "$mingw32" = "yes"; then
4870       error_exit "only the 'windows' coroutine backend is valid for Windows"
4871     fi
4872     ;;
4873   *)
4874     error_exit "unknown coroutine backend $coroutine"
4875     ;;
4876   esac
4877 fi
4878
4879 if test "$coroutine_pool" = ""; then
4880   coroutine_pool=yes
4881 fi
4882
4883 if test "$debug_stack_usage" = "yes"; then
4884   if test "$coroutine_pool" = "yes"; then
4885     echo "WARN: disabling coroutine pool for stack usage debugging"
4886     coroutine_pool=no
4887   fi
4888 fi
4889
4890 ##################################################
4891 # SafeStack
4892
4893
4894 if test "$safe_stack" = "yes"; then
4895 cat > $TMPC << EOF
4896 int main(int argc, char *argv[])
4897 {
4898 #if ! __has_feature(safe_stack)
4899 #error SafeStack Disabled
4900 #endif
4901     return 0;
4902 }
4903 EOF
4904   flag="-fsanitize=safe-stack"
4905   # Check that safe-stack is supported and enabled.
4906   if compile_prog "-Werror $flag" "$flag"; then
4907     # Flag needed both at compilation and at linking
4908     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4909     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4910   else
4911     error_exit "SafeStack not supported by your compiler"
4912   fi
4913   if test "$coroutine" != "ucontext"; then
4914     error_exit "SafeStack is only supported by the coroutine backend ucontext"
4915   fi
4916 else
4917 cat > $TMPC << EOF
4918 int main(int argc, char *argv[])
4919 {
4920 #if defined(__has_feature)
4921 #if __has_feature(safe_stack)
4922 #error SafeStack Enabled
4923 #endif
4924 #endif
4925     return 0;
4926 }
4927 EOF
4928 if test "$safe_stack" = "no"; then
4929   # Make sure that safe-stack is disabled
4930   if ! compile_prog "-Werror" ""; then
4931     # SafeStack was already enabled, try to explicitly remove the feature
4932     flag="-fno-sanitize=safe-stack"
4933     if ! compile_prog "-Werror $flag" "$flag"; then
4934       error_exit "Configure cannot disable SafeStack"
4935     fi
4936     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4937     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4938   fi
4939 else # "$safe_stack" = ""
4940   # Set safe_stack to yes or no based on pre-existing flags
4941   if compile_prog "-Werror" ""; then
4942     safe_stack="no"
4943   else
4944     safe_stack="yes"
4945     if test "$coroutine" != "ucontext"; then
4946       error_exit "SafeStack is only supported by the coroutine backend ucontext"
4947     fi
4948   fi
4949 fi
4950 fi
4951
4952 ##########################################
4953 # check if we have open_by_handle_at
4954
4955 open_by_handle_at=no
4956 cat > $TMPC << EOF
4957 #include <fcntl.h>
4958 #if !defined(AT_EMPTY_PATH)
4959 # error missing definition
4960 #else
4961 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
4962 #endif
4963 EOF
4964 if compile_prog "" "" ; then
4965     open_by_handle_at=yes
4966 fi
4967
4968 ########################################
4969 # check if we have linux/magic.h
4970
4971 linux_magic_h=no
4972 cat > $TMPC << EOF
4973 #include <linux/magic.h>
4974 int main(void) {
4975   return 0;
4976 }
4977 EOF
4978 if compile_prog "" "" ; then
4979     linux_magic_h=yes
4980 fi
4981
4982 ########################################
4983 # check if we have valgrind/valgrind.h
4984
4985 valgrind_h=no
4986 cat > $TMPC << EOF
4987 #include <valgrind/valgrind.h>
4988 int main(void) {
4989   return 0;
4990 }
4991 EOF
4992 if compile_prog "" "" ; then
4993     valgrind_h=yes
4994 fi
4995
4996 ########################################
4997 # check if environ is declared
4998
4999 has_environ=no
5000 cat > $TMPC << EOF
5001 #include <unistd.h>
5002 int main(void) {
5003     environ = 0;
5004     return 0;
5005 }
5006 EOF
5007 if compile_prog "" "" ; then
5008     has_environ=yes
5009 fi
5010
5011 ########################################
5012 # check if cpuid.h is usable.
5013
5014 cat > $TMPC << EOF
5015 #include <cpuid.h>
5016 int main(void) {
5017     unsigned a, b, c, d;
5018     int max = __get_cpuid_max(0, 0);
5019
5020     if (max >= 1) {
5021         __cpuid(1, a, b, c, d);
5022     }
5023
5024     if (max >= 7) {
5025         __cpuid_count(7, 0, a, b, c, d);
5026     }
5027
5028     return 0;
5029 }
5030 EOF
5031 if compile_prog "" "" ; then
5032     cpuid_h=yes
5033 fi
5034
5035 ##########################################
5036 # avx2 optimization requirement check
5037 #
5038 # There is no point enabling this if cpuid.h is not usable,
5039 # since we won't be able to select the new routines.
5040
5041 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
5042   cat > $TMPC << EOF
5043 #pragma GCC push_options
5044 #pragma GCC target("avx2")
5045 #include <cpuid.h>
5046 #include <immintrin.h>
5047 static int bar(void *a) {
5048     __m256i x = *(__m256i *)a;
5049     return _mm256_testz_si256(x, x);
5050 }
5051 int main(int argc, char *argv[]) { return bar(argv[0]); }
5052 EOF
5053   if compile_object "" ; then
5054     avx2_opt="yes"
5055   else
5056     avx2_opt="no"
5057   fi
5058 fi
5059
5060 ##########################################
5061 # avx512f optimization requirement check
5062 #
5063 # There is no point enabling this if cpuid.h is not usable,
5064 # since we won't be able to select the new routines.
5065 # by default, it is turned off.
5066 # if user explicitly want to enable it, check environment
5067
5068 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
5069   cat > $TMPC << EOF
5070 #pragma GCC push_options
5071 #pragma GCC target("avx512f")
5072 #include <cpuid.h>
5073 #include <immintrin.h>
5074 static int bar(void *a) {
5075     __m512i x = *(__m512i *)a;
5076     return _mm512_test_epi64_mask(x, x);
5077 }
5078 int main(int argc, char *argv[])
5079 {
5080         return bar(argv[0]);
5081 }
5082 EOF
5083   if ! compile_object "" ; then
5084     avx512f_opt="no"
5085   fi
5086 else
5087   avx512f_opt="no"
5088 fi
5089
5090 ########################################
5091 # check if __[u]int128_t is usable.
5092
5093 int128=no
5094 cat > $TMPC << EOF
5095 __int128_t a;
5096 __uint128_t b;
5097 int main (void) {
5098   a = a + b;
5099   b = a * b;
5100   a = a * a;
5101   return 0;
5102 }
5103 EOF
5104 if compile_prog "" "" ; then
5105     int128=yes
5106 fi
5107
5108 #########################################
5109 # See if 128-bit atomic operations are supported.
5110
5111 atomic128=no
5112 if test "$int128" = "yes"; then
5113   cat > $TMPC << EOF
5114 int main(void)
5115 {
5116   unsigned __int128 x = 0, y = 0;
5117   y = __atomic_load_16(&x, 0);
5118   __atomic_store_16(&x, y, 0);
5119   __atomic_compare_exchange_16(&x, &y, x, 0, 0, 0);
5120   return 0;
5121 }
5122 EOF
5123   if compile_prog "" "" ; then
5124     atomic128=yes
5125   fi
5126 fi
5127
5128 cmpxchg128=no
5129 if test "$int128" = yes && test "$atomic128" = no; then
5130   cat > $TMPC << EOF
5131 int main(void)
5132 {
5133   unsigned __int128 x = 0, y = 0;
5134   __sync_val_compare_and_swap_16(&x, y, x);
5135   return 0;
5136 }
5137 EOF
5138   if compile_prog "" "" ; then
5139     cmpxchg128=yes
5140   fi
5141 fi
5142
5143 #########################################
5144 # See if 64-bit atomic operations are supported.
5145 # Note that without __atomic builtins, we can only
5146 # assume atomic loads/stores max at pointer size.
5147
5148 cat > $TMPC << EOF
5149 #include <stdint.h>
5150 int main(void)
5151 {
5152   uint64_t x = 0, y = 0;
5153 #ifdef __ATOMIC_RELAXED
5154   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
5155   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
5156   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
5157   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
5158   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
5159 #else
5160   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
5161   __sync_lock_test_and_set(&x, y);
5162   __sync_val_compare_and_swap(&x, y, 0);
5163   __sync_fetch_and_add(&x, y);
5164 #endif
5165   return 0;
5166 }
5167 EOF
5168 if compile_prog "" "" ; then
5169   atomic64=yes
5170 fi
5171
5172 #########################################
5173 # See if --dynamic-list is supported by the linker
5174 ld_dynamic_list="no"
5175 if test "$static" = "no" ; then
5176     cat > $TMPTXT <<EOF
5177 {
5178   foo;
5179 };
5180 EOF
5181
5182     cat > $TMPC <<EOF
5183 #include <stdio.h>
5184 void foo(void);
5185
5186 void foo(void)
5187 {
5188   printf("foo\n");
5189 }
5190
5191 int main(void)
5192 {
5193   foo();
5194   return 0;
5195 }
5196 EOF
5197
5198     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
5199         ld_dynamic_list="yes"
5200     fi
5201 fi
5202
5203 #########################################
5204 # See if -exported_symbols_list is supported by the linker
5205
5206 ld_exported_symbols_list="no"
5207 if test "$static" = "no" ; then
5208     cat > $TMPTXT <<EOF
5209   _foo
5210 EOF
5211
5212     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
5213         ld_exported_symbols_list="yes"
5214     fi
5215 fi
5216
5217 if  test "$plugins" = "yes" &&
5218     test "$ld_dynamic_list" = "no" &&
5219     test "$ld_exported_symbols_list" = "no" ; then
5220   error_exit \
5221       "Plugin support requires dynamic linking and specifying a set of symbols " \
5222       "that are exported to plugins. Unfortunately your linker doesn't " \
5223       "support the flag (--dynamic-list or -exported_symbols_list) used " \
5224       "for this purpose. You can't build with --static."
5225 fi
5226
5227 ########################################
5228 # See if __attribute__((alias)) is supported.
5229 # This false for Xcode 9, but has been remedied for Xcode 10.
5230 # Unfortunately, travis uses Xcode 9 by default.
5231
5232 attralias=no
5233 cat > $TMPC << EOF
5234 int x = 1;
5235 extern const int y __attribute__((alias("x")));
5236 int main(void) { return 0; }
5237 EOF
5238 if compile_prog "" "" ; then
5239     attralias=yes
5240 fi
5241
5242 ########################################
5243 # check if getauxval is available.
5244
5245 getauxval=no
5246 cat > $TMPC << EOF
5247 #include <sys/auxv.h>
5248 int main(void) {
5249   return getauxval(AT_HWCAP) == 0;
5250 }
5251 EOF
5252 if compile_prog "" "" ; then
5253     getauxval=yes
5254 fi
5255
5256 ########################################
5257 # check if ccache is interfering with
5258 # semantic analysis of macros
5259
5260 unset CCACHE_CPP2
5261 ccache_cpp2=no
5262 cat > $TMPC << EOF
5263 static const int Z = 1;
5264 #define fn() ({ Z; })
5265 #define TAUT(X) ((X) == Z)
5266 #define PAREN(X, Y) (X == Y)
5267 #define ID(X) (X)
5268 int main(int argc, char *argv[])
5269 {
5270     int x = 0, y = 0;
5271     x = ID(x);
5272     x = fn();
5273     fn();
5274     if (PAREN(x, y)) return 0;
5275     if (TAUT(Z)) return 0;
5276     return 0;
5277 }
5278 EOF
5279
5280 if ! compile_object "-Werror"; then
5281     ccache_cpp2=yes
5282 fi
5283
5284 #################################################
5285 # clang does not support glibc + FORTIFY_SOURCE.
5286
5287 if test "$fortify_source" != "no"; then
5288   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
5289     fortify_source="no";
5290   elif test -n "$cxx" && has $cxx &&
5291        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
5292     fortify_source="no";
5293   else
5294     fortify_source="yes"
5295   fi
5296 fi
5297
5298 ###############################################
5299 # Check if copy_file_range is provided by glibc
5300 have_copy_file_range=no
5301 cat > $TMPC << EOF
5302 #include <unistd.h>
5303 int main(void) {
5304   copy_file_range(0, NULL, 0, NULL, 0, 0);
5305   return 0;
5306 }
5307 EOF
5308 if compile_prog "" "" ; then
5309     have_copy_file_range=yes
5310 fi
5311
5312 ##########################################
5313 # check if struct fsxattr is available via linux/fs.h
5314
5315 have_fsxattr=no
5316 cat > $TMPC << EOF
5317 #include <linux/fs.h>
5318 struct fsxattr foo;
5319 int main(void) {
5320   return 0;
5321 }
5322 EOF
5323 if compile_prog "" "" ; then
5324     have_fsxattr=yes
5325 fi
5326
5327 ##########################################
5328 # check for usable membarrier system call
5329 if test "$membarrier" = "yes"; then
5330     have_membarrier=no
5331     if test "$mingw32" = "yes" ; then
5332         have_membarrier=yes
5333     elif test "$linux" = "yes" ; then
5334         cat > $TMPC << EOF
5335     #include <linux/membarrier.h>
5336     #include <sys/syscall.h>
5337     #include <unistd.h>
5338     #include <stdlib.h>
5339     int main(void) {
5340         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
5341         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
5342         exit(0);
5343     }
5344 EOF
5345         if compile_prog "" "" ; then
5346             have_membarrier=yes
5347         fi
5348     fi
5349     if test "$have_membarrier" = "no"; then
5350       feature_not_found "membarrier" "membarrier system call not available"
5351     fi
5352 else
5353     # Do not enable it by default even for Mingw32, because it doesn't
5354     # work on Wine.
5355     membarrier=no
5356 fi
5357
5358 ##########################################
5359 # check if rtnetlink.h exists and is useful
5360 have_rtnetlink=no
5361 cat > $TMPC << EOF
5362 #include <linux/rtnetlink.h>
5363 int main(void) {
5364   return IFLA_PROTO_DOWN;
5365 }
5366 EOF
5367 if compile_prog "" "" ; then
5368     have_rtnetlink=yes
5369 fi
5370
5371 ##########################################
5372 # check for usable AF_VSOCK environment
5373 have_af_vsock=no
5374 cat > $TMPC << EOF
5375 #include <errno.h>
5376 #include <sys/types.h>
5377 #include <sys/socket.h>
5378 #if !defined(AF_VSOCK)
5379 # error missing AF_VSOCK flag
5380 #endif
5381 #include <linux/vm_sockets.h>
5382 int main(void) {
5383     int sock, ret;
5384     struct sockaddr_vm svm;
5385     socklen_t len = sizeof(svm);
5386     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
5387     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
5388     if ((ret == -1) && (errno == ENOTCONN)) {
5389         return 0;
5390     }
5391     return -1;
5392 }
5393 EOF
5394 if compile_prog "" "" ; then
5395     have_af_vsock=yes
5396 fi
5397
5398 ##########################################
5399 # check for usable AF_ALG environment
5400 have_afalg=no
5401 cat > $TMPC << EOF
5402 #include <errno.h>
5403 #include <sys/types.h>
5404 #include <sys/socket.h>
5405 #include <linux/if_alg.h>
5406 int main(void) {
5407     int sock;
5408     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
5409     return sock;
5410 }
5411 EOF
5412 if compile_prog "" "" ; then
5413     have_afalg=yes
5414 fi
5415 if test "$crypto_afalg" = "yes"
5416 then
5417     if test "$have_afalg" != "yes"
5418     then
5419         error_exit "AF_ALG requested but could not be detected"
5420     fi
5421 fi
5422
5423
5424 #################################################
5425 # check for sysmacros.h
5426
5427 have_sysmacros=no
5428 cat > $TMPC << EOF
5429 #include <sys/sysmacros.h>
5430 int main(void) {
5431     return makedev(0, 0);
5432 }
5433 EOF
5434 if compile_prog "" "" ; then
5435     have_sysmacros=yes
5436 fi
5437
5438 ##########################################
5439 # check for _Static_assert()
5440
5441 have_static_assert=no
5442 cat > $TMPC << EOF
5443 _Static_assert(1, "success");
5444 int main(void) {
5445     return 0;
5446 }
5447 EOF
5448 if compile_prog "" "" ; then
5449     have_static_assert=yes
5450 fi
5451
5452 ##########################################
5453 # check for utmpx.h, it is missing e.g. on OpenBSD
5454
5455 have_utmpx=no
5456 cat > $TMPC << EOF
5457 #include <utmpx.h>
5458 struct utmpx user_info;
5459 int main(void) {
5460     return 0;
5461 }
5462 EOF
5463 if compile_prog "" "" ; then
5464     have_utmpx=yes
5465 fi
5466
5467 ##########################################
5468 # check for getrandom()
5469
5470 have_getrandom=no
5471 cat > $TMPC << EOF
5472 #include <sys/random.h>
5473 int main(void) {
5474     return getrandom(0, 0, GRND_NONBLOCK);
5475 }
5476 EOF
5477 if compile_prog "" "" ; then
5478     have_getrandom=yes
5479 fi
5480
5481 ##########################################
5482 # checks for sanitizers
5483
5484 have_asan=no
5485 have_ubsan=no
5486 have_asan_iface_h=no
5487 have_asan_iface_fiber=no
5488
5489 if test "$sanitizers" = "yes" ; then
5490   write_c_skeleton
5491   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
5492       have_asan=yes
5493   fi
5494
5495   # we could use a simple skeleton for flags checks, but this also
5496   # detect the static linking issue of ubsan, see also:
5497   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
5498   cat > $TMPC << EOF
5499 #include <stdlib.h>
5500 int main(void) {
5501     void *tmp = malloc(10);
5502     if (tmp != NULL) {
5503         return *(int *)(tmp + 2);
5504     }
5505     return 1;
5506 }
5507 EOF
5508   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
5509       have_ubsan=yes
5510   fi
5511
5512   if check_include "sanitizer/asan_interface.h" ; then
5513       have_asan_iface_h=yes
5514   fi
5515
5516   cat > $TMPC << EOF
5517 #include <sanitizer/asan_interface.h>
5518 int main(void) {
5519   __sanitizer_start_switch_fiber(0, 0, 0);
5520   return 0;
5521 }
5522 EOF
5523   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
5524       have_asan_iface_fiber=yes
5525   fi
5526 fi
5527
5528 ##########################################
5529 # checks for fuzzer
5530 if test "$fuzzing" = "yes" && test -z "${LIB_FUZZING_ENGINE+xxx}"; then
5531   write_c_fuzzer_skeleton
5532   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
5533     have_fuzzer=yes
5534   else
5535     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
5536     exit 1
5537   fi
5538 fi
5539
5540 # Thread sanitizer is, for now, much noisier than the other sanitizers;
5541 # keep it separate until that is not the case.
5542 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
5543   error_exit "TSAN is not supported with other sanitiziers."
5544 fi
5545 have_tsan=no
5546 have_tsan_iface_fiber=no
5547 if test "$tsan" = "yes" ; then
5548   write_c_skeleton
5549   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5550       have_tsan=yes
5551   fi
5552   cat > $TMPC << EOF
5553 #include <sanitizer/tsan_interface.h>
5554 int main(void) {
5555   __tsan_create_fiber(0);
5556   return 0;
5557 }
5558 EOF
5559   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5560       have_tsan_iface_fiber=yes
5561   fi
5562 fi
5563
5564 ##########################################
5565 # check for libpmem
5566
5567 if test "$libpmem" != "no"; then
5568         if $pkg_config --exists "libpmem"; then
5569                 libpmem="yes"
5570                 libpmem_libs=$($pkg_config --libs libpmem)
5571                 libpmem_cflags=$($pkg_config --cflags libpmem)
5572         else
5573                 if test "$libpmem" = "yes" ; then
5574                         feature_not_found "libpmem" "Install nvml or pmdk"
5575                 fi
5576                 libpmem="no"
5577         fi
5578 fi
5579
5580 ##########################################
5581 # check for libdaxctl
5582
5583 if test "$libdaxctl" != "no"; then
5584         if $pkg_config --atleast-version=57 "libdaxctl"; then
5585                 libdaxctl="yes"
5586                 libdaxctl_libs=$($pkg_config --libs libdaxctl)
5587                 libdaxctl_cflags=$($pkg_config --cflags libdaxctl)
5588         else
5589                 if test "$libdaxctl" = "yes" ; then
5590                         feature_not_found "libdaxctl" "Install libdaxctl"
5591                 fi
5592                 libdaxctl="no"
5593         fi
5594 fi
5595
5596 ##########################################
5597 # check for slirp
5598
5599 case "$slirp" in
5600   auto | enabled | internal)
5601     # Simpler to always update submodule, even if not needed.
5602     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
5603       git_submodules="${git_submodules} slirp"
5604     fi
5605     ;;
5606 esac
5607
5608 ##########################################
5609 # check for usable __NR_keyctl syscall
5610
5611 if test "$linux" = "yes" ; then
5612
5613     have_keyring=no
5614     cat > $TMPC << EOF
5615 #include <errno.h>
5616 #include <asm/unistd.h>
5617 #include <linux/keyctl.h>
5618 #include <unistd.h>
5619 int main(void) {
5620     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
5621 }
5622 EOF
5623     if compile_prog "" "" ; then
5624         have_keyring=yes
5625     fi
5626 fi
5627 if test "$secret_keyring" != "no"
5628 then
5629     if test "$have_keyring" = "yes"
5630     then
5631         secret_keyring=yes
5632     else
5633         if test "$secret_keyring" = "yes"
5634         then
5635             error_exit "syscall __NR_keyctl requested, \
5636 but not implemented on your system"
5637         else
5638             secret_keyring=no
5639         fi
5640     fi
5641 fi
5642
5643 ##########################################
5644 # End of CC checks
5645 # After here, no more $cc or $ld runs
5646
5647 write_c_skeleton
5648
5649 if test "$gcov" = "yes" ; then
5650   :
5651 elif test "$fortify_source" = "yes" ; then
5652   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
5653   debug=no
5654 fi
5655
5656 case "$ARCH" in
5657 alpha)
5658   # Ensure there's only a single GP
5659   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
5660 ;;
5661 esac
5662
5663 if test "$gprof" = "yes" ; then
5664   QEMU_CFLAGS="-p $QEMU_CFLAGS"
5665   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
5666 fi
5667
5668 if test "$have_asan" = "yes"; then
5669   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
5670   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
5671   if test "$have_asan_iface_h" = "no" ; then
5672       echo "ASAN build enabled, but ASAN header missing." \
5673            "Without code annotation, the report may be inferior."
5674   elif test "$have_asan_iface_fiber" = "no" ; then
5675       echo "ASAN build enabled, but ASAN header is too old." \
5676            "Without code annotation, the report may be inferior."
5677   fi
5678 fi
5679 if test "$have_tsan" = "yes" ; then
5680   if test "$have_tsan_iface_fiber" = "yes" ; then
5681     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
5682     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
5683   else
5684     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
5685   fi
5686 elif test "$tsan" = "yes" ; then
5687   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
5688 fi
5689 if test "$have_ubsan" = "yes"; then
5690   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
5691   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
5692 fi
5693
5694 ##########################################
5695 # Do we have libnfs
5696 if test "$libnfs" != "no" ; then
5697   if $pkg_config --atleast-version=1.9.3 libnfs; then
5698     libnfs="yes"
5699     libnfs_libs=$($pkg_config --libs libnfs)
5700   else
5701     if test "$libnfs" = "yes" ; then
5702       feature_not_found "libnfs" "Install libnfs devel >= 1.9.3"
5703     fi
5704     libnfs="no"
5705   fi
5706 fi
5707
5708 ##########################################
5709
5710 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
5711 if test "$solaris" = "no" && test "$tsan" = "no"; then
5712     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
5713         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
5714     fi
5715 fi
5716
5717 # Use ASLR, no-SEH and DEP if available
5718 if test "$mingw32" = "yes" ; then
5719     flags="--no-seh --nxcompat"
5720
5721     # Disable ASLR for debug builds to allow debugging with gdb
5722     if test "$debug" = "no" ; then
5723         flags="--dynamicbase $flags"
5724     fi
5725
5726     for flag in $flags; do
5727         if ld_has $flag ; then
5728             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
5729         fi
5730     done
5731 fi
5732
5733 # We can only support ivshmem if we have eventfd
5734 if [ "$eventfd" = "yes" ]; then
5735   ivshmem=yes
5736 fi
5737
5738 if test "$softmmu" = yes ; then
5739   if test "$linux" = yes; then
5740     if test "$virtfs" != no && test "$cap_ng" = yes && test "$attr" = yes ; then
5741       virtfs=yes
5742     else
5743       if test "$virtfs" = yes; then
5744         error_exit "VirtFS requires libcap-ng devel and libattr devel"
5745       fi
5746       virtfs=no
5747     fi
5748   else
5749     if test "$virtfs" = yes; then
5750       error_exit "VirtFS is supported only on Linux"
5751     fi
5752     virtfs=no
5753   fi
5754 fi
5755
5756 # Probe for guest agent support/options
5757
5758 if [ "$guest_agent" != "no" ]; then
5759   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
5760       guest_agent=no
5761   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
5762       guest_agent=yes
5763   elif [ "$guest_agent" != yes ]; then
5764       guest_agent=no
5765   else
5766       error_exit "Guest agent is not supported on this platform"
5767   fi
5768 fi
5769
5770 # Guest agent Window MSI  package
5771
5772 if test "$guest_agent" != yes; then
5773   if test "$guest_agent_msi" = yes; then
5774     error_exit "MSI guest agent package requires guest agent enabled"
5775   fi
5776   guest_agent_msi=no
5777 elif test "$mingw32" != "yes"; then
5778   if test "$guest_agent_msi" = "yes"; then
5779     error_exit "MSI guest agent package is available only for MinGW Windows cross-compilation"
5780   fi
5781   guest_agent_msi=no
5782 elif ! has wixl; then
5783   if test "$guest_agent_msi" = "yes"; then
5784     error_exit "MSI guest agent package requires wixl tool installed ( usually from msitools package )"
5785   fi
5786   guest_agent_msi=no
5787 else
5788   # we support qemu-ga, mingw32, and wixl: default to MSI enabled if it wasn't
5789   # disabled explicitly
5790   if test "$guest_agent_msi" != "no"; then
5791     guest_agent_msi=yes
5792   fi
5793 fi
5794
5795 if test "$guest_agent_msi" = "yes"; then
5796   if test "$guest_agent_with_vss" = "yes"; then
5797     QEMU_GA_MSI_WITH_VSS="-D InstallVss"
5798   fi
5799
5800   if test "$QEMU_GA_MANUFACTURER" = ""; then
5801     QEMU_GA_MANUFACTURER=QEMU
5802   fi
5803
5804   if test "$QEMU_GA_DISTRO" = ""; then
5805     QEMU_GA_DISTRO=Linux
5806   fi
5807
5808   if test "$QEMU_GA_VERSION" = ""; then
5809       QEMU_GA_VERSION=$(cat $source_path/VERSION)
5810   fi
5811
5812   QEMU_GA_MSI_MINGW_DLL_PATH="-D Mingw_dlls=$($pkg_config --variable=prefix glib-2.0)/bin"
5813
5814   case "$cpu" in
5815   x86_64)
5816     QEMU_GA_MSI_ARCH="-a x64 -D Arch=64"
5817     ;;
5818   i386)
5819     QEMU_GA_MSI_ARCH="-D Arch=32"
5820     ;;
5821   *)
5822     error_exit "CPU $cpu not supported for building installation package"
5823     ;;
5824   esac
5825 fi
5826
5827 # Mac OS X ships with a broken assembler
5828 roms=
5829 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
5830         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
5831         test "$softmmu" = yes ; then
5832     # Different host OS linkers have different ideas about the name of the ELF
5833     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
5834     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
5835     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
5836         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
5837             ld_i386_emulation="$emu"
5838             roms="optionrom"
5839             break
5840         fi
5841     done
5842 fi
5843
5844 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
5845 if test "$cpu" = "s390x" ; then
5846   write_c_skeleton
5847   if compile_prog "-march=z900" ""; then
5848     roms="$roms s390-ccw"
5849     # SLOF is required for building the s390-ccw firmware on s390x,
5850     # since it is using the libnet code from SLOF for network booting.
5851     if test -e "${source_path}/.git" ; then
5852       git_submodules="${git_submodules} roms/SLOF"
5853     fi
5854   fi
5855 fi
5856
5857 # Check that the C++ compiler exists and works with the C compiler.
5858 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
5859 if has $cxx; then
5860     cat > $TMPC <<EOF
5861 int c_function(void);
5862 int main(void) { return c_function(); }
5863 EOF
5864
5865     compile_object
5866
5867     cat > $TMPCXX <<EOF
5868 extern "C" {
5869    int c_function(void);
5870 }
5871 int c_function(void) { return 42; }
5872 EOF
5873
5874     update_cxxflags
5875
5876     if do_cxx $CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
5877         # C++ compiler $cxx works ok with C compiler $cc
5878         :
5879     else
5880         echo "C++ compiler $cxx does not work with C compiler $cc"
5881         echo "Disabling C++ specific optional code"
5882         cxx=
5883     fi
5884 else
5885     echo "No C++ compiler available; disabling C++ specific optional code"
5886     cxx=
5887 fi
5888
5889 if test $git_update = 'yes' ; then
5890     (cd "${source_path}" && GIT="$git" "./scripts/git-submodule.sh" update "$git_submodules")
5891 fi
5892
5893 config_host_mak="config-host.mak"
5894
5895 echo "# Automatically generated by configure - do not modify" > $config_host_mak
5896 echo >> $config_host_mak
5897
5898 echo all: >> $config_host_mak
5899 echo "GIT=$git" >> $config_host_mak
5900 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
5901 echo "GIT_UPDATE=$git_update" >> $config_host_mak
5902
5903 echo "ARCH=$ARCH" >> $config_host_mak
5904
5905 if test "$default_devices" = "yes" ; then
5906   echo "CONFIG_MINIKCONF_MODE=--defconfig" >> $config_host_mak
5907 else
5908   echo "CONFIG_MINIKCONF_MODE=--allnoconfig" >> $config_host_mak
5909 fi
5910 if test "$debug_tcg" = "yes" ; then
5911   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
5912 fi
5913 if test "$strip_opt" = "yes" ; then
5914   echo "STRIP=${strip}" >> $config_host_mak
5915 fi
5916 if test "$bigendian" = "yes" ; then
5917   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
5918 fi
5919 if test "$mingw32" = "yes" ; then
5920   echo "CONFIG_WIN32=y" >> $config_host_mak
5921   rc_version=$(cat $source_path/VERSION)
5922   version_major=${rc_version%%.*}
5923   rc_version=${rc_version#*.}
5924   version_minor=${rc_version%%.*}
5925   rc_version=${rc_version#*.}
5926   version_subminor=${rc_version%%.*}
5927   version_micro=0
5928   echo "CONFIG_FILEVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
5929   echo "CONFIG_PRODUCTVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
5930   if test "$guest_agent_with_vss" = "yes" ; then
5931     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
5932     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
5933     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
5934   fi
5935   if test "$guest_agent_ntddscsi" = "yes" ; then
5936     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
5937   fi
5938   if test "$guest_agent_msi" = "yes"; then
5939     echo "CONFIG_QGA_MSI=y" >> $config_host_mak
5940     echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
5941     echo "QEMU_GA_MSI_WITH_VSS=${QEMU_GA_MSI_WITH_VSS}" >> $config_host_mak
5942     echo "QEMU_GA_MSI_ARCH=${QEMU_GA_MSI_ARCH}" >> $config_host_mak
5943     echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
5944     echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
5945     echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
5946   fi
5947 else
5948   echo "CONFIG_POSIX=y" >> $config_host_mak
5949 fi
5950
5951 if test "$linux" = "yes" ; then
5952   echo "CONFIG_LINUX=y" >> $config_host_mak
5953 fi
5954
5955 if test "$darwin" = "yes" ; then
5956   echo "CONFIG_DARWIN=y" >> $config_host_mak
5957 fi
5958
5959 if test "$solaris" = "yes" ; then
5960   echo "CONFIG_SOLARIS=y" >> $config_host_mak
5961 fi
5962 if test "$haiku" = "yes" ; then
5963   echo "CONFIG_HAIKU=y" >> $config_host_mak
5964 fi
5965 if test "$static" = "yes" ; then
5966   echo "CONFIG_STATIC=y" >> $config_host_mak
5967 fi
5968 if test "$profiler" = "yes" ; then
5969   echo "CONFIG_PROFILER=y" >> $config_host_mak
5970 fi
5971 if test "$want_tools" = "yes" ; then
5972   echo "CONFIG_TOOLS=y" >> $config_host_mak
5973 fi
5974 if test "$guest_agent" = "yes" ; then
5975   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
5976 fi
5977 echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
5978 if test "$vde" = "yes" ; then
5979   echo "CONFIG_VDE=y" >> $config_host_mak
5980   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
5981 fi
5982 if test "$netmap" = "yes" ; then
5983   echo "CONFIG_NETMAP=y" >> $config_host_mak
5984 fi
5985 if test "$l2tpv3" = "yes" ; then
5986   echo "CONFIG_L2TPV3=y" >> $config_host_mak
5987 fi
5988 if test "$gprof" = "yes" ; then
5989   echo "CONFIG_GPROF=y" >> $config_host_mak
5990 fi
5991 if test "$cap_ng" = "yes" ; then
5992   echo "CONFIG_LIBCAP_NG=y" >> $config_host_mak
5993   echo "LIBCAP_NG_LIBS=$cap_libs" >> $config_host_mak
5994 fi
5995 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
5996 for drv in $audio_drv_list; do
5997     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
5998     echo "$def=y" >> $config_host_mak
5999 done
6000 if test "$alsa" = "yes" ; then
6001     echo "CONFIG_ALSA=y" >> $config_host_mak
6002 fi
6003 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
6004 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
6005 if test "$libpulse" = "yes" ; then
6006     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
6007 fi
6008 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
6009 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
6010 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
6011 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
6012 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
6013 if test "$libjack" = "yes" ; then
6014     echo "CONFIG_LIBJACK=y" >> $config_host_mak
6015 fi
6016 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
6017 if test "$audio_win_int" = "yes" ; then
6018   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
6019 fi
6020 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
6021 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
6022 if test "$xfs" = "yes" ; then
6023   echo "CONFIG_XFS=y" >> $config_host_mak
6024 fi
6025 qemu_version=$(head $source_path/VERSION)
6026 echo "PKGVERSION=$pkgversion" >>$config_host_mak
6027 echo "SRC_PATH=$source_path" >> $config_host_mak
6028 echo "TARGET_DIRS=$target_list" >> $config_host_mak
6029 if test "$modules" = "yes"; then
6030   # $shacmd can generate a hash started with digit, which the compiler doesn't
6031   # like as an symbol. So prefix it with an underscore
6032   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
6033   echo "CONFIG_MODULES=y" >> $config_host_mak
6034 fi
6035 if test "$module_upgrades" = "yes"; then
6036   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
6037 fi
6038 if test "$have_x11" = "yes" && test "$need_x11" = "yes"; then
6039   echo "CONFIG_X11=y" >> $config_host_mak
6040   echo "X11_CFLAGS=$x11_cflags" >> $config_host_mak
6041   echo "X11_LIBS=$x11_libs" >> $config_host_mak
6042 fi
6043 if test "$pipe2" = "yes" ; then
6044   echo "CONFIG_PIPE2=y" >> $config_host_mak
6045 fi
6046 if test "$accept4" = "yes" ; then
6047   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
6048 fi
6049 if test "$splice" = "yes" ; then
6050   echo "CONFIG_SPLICE=y" >> $config_host_mak
6051 fi
6052 if test "$eventfd" = "yes" ; then
6053   echo "CONFIG_EVENTFD=y" >> $config_host_mak
6054 fi
6055 if test "$memfd" = "yes" ; then
6056   echo "CONFIG_MEMFD=y" >> $config_host_mak
6057 fi
6058 if test "$have_usbfs" = "yes" ; then
6059   echo "CONFIG_USBFS=y" >> $config_host_mak
6060 fi
6061 if test "$fallocate" = "yes" ; then
6062   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
6063 fi
6064 if test "$fallocate_punch_hole" = "yes" ; then
6065   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
6066 fi
6067 if test "$fallocate_zero_range" = "yes" ; then
6068   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
6069 fi
6070 if test "$posix_fallocate" = "yes" ; then
6071   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
6072 fi
6073 if test "$sync_file_range" = "yes" ; then
6074   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
6075 fi
6076 if test "$fiemap" = "yes" ; then
6077   echo "CONFIG_FIEMAP=y" >> $config_host_mak
6078 fi
6079 if test "$dup3" = "yes" ; then
6080   echo "CONFIG_DUP3=y" >> $config_host_mak
6081 fi
6082 if test "$ppoll" = "yes" ; then
6083   echo "CONFIG_PPOLL=y" >> $config_host_mak
6084 fi
6085 if test "$prctl_pr_set_timerslack" = "yes" ; then
6086   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
6087 fi
6088 if test "$epoll" = "yes" ; then
6089   echo "CONFIG_EPOLL=y" >> $config_host_mak
6090 fi
6091 if test "$epoll_create1" = "yes" ; then
6092   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
6093 fi
6094 if test "$sendfile" = "yes" ; then
6095   echo "CONFIG_SENDFILE=y" >> $config_host_mak
6096 fi
6097 if test "$timerfd" = "yes" ; then
6098   echo "CONFIG_TIMERFD=y" >> $config_host_mak
6099 fi
6100 if test "$setns" = "yes" ; then
6101   echo "CONFIG_SETNS=y" >> $config_host_mak
6102 fi
6103 if test "$clock_adjtime" = "yes" ; then
6104   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
6105 fi
6106 if test "$syncfs" = "yes" ; then
6107   echo "CONFIG_SYNCFS=y" >> $config_host_mak
6108 fi
6109 if test "$kcov" = "yes" ; then
6110   echo "CONFIG_KCOV=y" >> $config_host_mak
6111 fi
6112 if test "$btrfs" = "yes" ; then
6113   echo "CONFIG_BTRFS=y" >> $config_host_mak
6114 fi
6115 if test "$inotify" = "yes" ; then
6116   echo "CONFIG_INOTIFY=y" >> $config_host_mak
6117 fi
6118 if test "$inotify1" = "yes" ; then
6119   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
6120 fi
6121 if test "$sem_timedwait" = "yes" ; then
6122   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
6123 fi
6124 if test "$strchrnul" = "yes" ; then
6125   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
6126 fi
6127 if test "$st_atim" = "yes" ; then
6128   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
6129 fi
6130 if test "$byteswap_h" = "yes" ; then
6131   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
6132 fi
6133 if test "$bswap_h" = "yes" ; then
6134   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
6135 fi
6136 if test "$curl" = "yes" ; then
6137   echo "CONFIG_CURL=y" >> $config_host_mak
6138   echo "CURL_CFLAGS=$curl_cflags" >> $config_host_mak
6139   echo "CURL_LIBS=$curl_libs" >> $config_host_mak
6140 fi
6141 if test "$brlapi" = "yes" ; then
6142   echo "CONFIG_BRLAPI=y" >> $config_host_mak
6143   echo "BRLAPI_LIBS=$brlapi_libs" >> $config_host_mak
6144 fi
6145 if test "$gtk" = "yes" ; then
6146   echo "CONFIG_GTK=y" >> $config_host_mak
6147   echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
6148   echo "GTK_LIBS=$gtk_libs" >> $config_host_mak
6149   if test "$gtk_gl" = "yes" ; then
6150     echo "CONFIG_GTK_GL=y" >> $config_host_mak
6151   fi
6152 fi
6153 if test "$gio" = "yes" ; then
6154     echo "CONFIG_GIO=y" >> $config_host_mak
6155     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
6156     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
6157     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
6158 fi
6159 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
6160 if test "$gnutls" = "yes" ; then
6161   echo "CONFIG_GNUTLS=y" >> $config_host_mak
6162   echo "GNUTLS_CFLAGS=$gnutls_cflags" >> $config_host_mak
6163   echo "GNUTLS_LIBS=$gnutls_libs" >> $config_host_mak
6164 fi
6165 if test "$gcrypt" = "yes" ; then
6166   echo "CONFIG_GCRYPT=y" >> $config_host_mak
6167   if test "$gcrypt_hmac" = "yes" ; then
6168     echo "CONFIG_GCRYPT_HMAC=y" >> $config_host_mak
6169   fi
6170   echo "GCRYPT_CFLAGS=$gcrypt_cflags" >> $config_host_mak
6171   echo "GCRYPT_LIBS=$gcrypt_libs" >> $config_host_mak
6172 fi
6173 if test "$nettle" = "yes" ; then
6174   echo "CONFIG_NETTLE=y" >> $config_host_mak
6175   echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
6176   echo "NETTLE_CFLAGS=$nettle_cflags" >> $config_host_mak
6177   echo "NETTLE_LIBS=$nettle_libs" >> $config_host_mak
6178 fi
6179 if test "$qemu_private_xts" = "yes" ; then
6180   echo "CONFIG_QEMU_PRIVATE_XTS=y" >> $config_host_mak
6181 fi
6182 if test "$tasn1" = "yes" ; then
6183   echo "CONFIG_TASN1=y" >> $config_host_mak
6184 fi
6185 if test "$auth_pam" = "yes" ; then
6186     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
6187 fi
6188 if test "$have_ifaddrs_h" = "yes" ; then
6189     echo "HAVE_IFADDRS_H=y" >> $config_host_mak
6190 fi
6191 if test "$have_drm_h" = "yes" ; then
6192   echo "HAVE_DRM_H=y" >> $config_host_mak
6193 fi
6194 if test "$have_broken_size_max" = "yes" ; then
6195     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
6196 fi
6197 if test "$have_openpty" = "yes" ; then
6198     echo "HAVE_OPENPTY=y" >> $config_host_mak
6199 fi
6200 if test "$have_sys_signal_h" = "yes" ; then
6201     echo "HAVE_SYS_SIGNAL_H=y" >> $config_host_mak
6202 fi
6203
6204 # Work around a system header bug with some kernel/XFS header
6205 # versions where they both try to define 'struct fsxattr':
6206 # xfs headers will not try to redefine structs from linux headers
6207 # if this macro is set.
6208 if test "$have_fsxattr" = "yes" ; then
6209     echo "HAVE_FSXATTR=y" >> $config_host_mak
6210 fi
6211 if test "$have_copy_file_range" = "yes" ; then
6212     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
6213 fi
6214 if test "$vte" = "yes" ; then
6215   echo "CONFIG_VTE=y" >> $config_host_mak
6216   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
6217   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
6218 fi
6219 if test "$virglrenderer" = "yes" ; then
6220   echo "CONFIG_VIRGL=y" >> $config_host_mak
6221   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
6222   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
6223 fi
6224 if test "$xen" = "enabled" ; then
6225   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
6226   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
6227   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
6228   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
6229 fi
6230 if test "$linux_aio" = "yes" ; then
6231   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
6232 fi
6233 if test "$linux_io_uring" = "yes" ; then
6234   echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
6235   echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
6236   echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
6237 fi
6238 if test "$attr" = "yes" ; then
6239   echo "CONFIG_ATTR=y" >> $config_host_mak
6240   echo "LIBATTR_LIBS=$libattr_libs" >> $config_host_mak
6241 fi
6242 if test "$libattr" = "yes" ; then
6243   echo "CONFIG_LIBATTR=y" >> $config_host_mak
6244 fi
6245 if test "$virtfs" = "yes" ; then
6246   echo "CONFIG_VIRTFS=y" >> $config_host_mak
6247 fi
6248 if test "$vhost_scsi" = "yes" ; then
6249   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
6250 fi
6251 if test "$vhost_net" = "yes" ; then
6252   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
6253 fi
6254 if test "$vhost_net_user" = "yes" ; then
6255   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
6256 fi
6257 if test "$vhost_net_vdpa" = "yes" ; then
6258   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
6259 fi
6260 if test "$vhost_crypto" = "yes" ; then
6261   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
6262 fi
6263 if test "$vhost_vsock" = "yes" ; then
6264   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
6265   if test "$vhost_user" = "yes" ; then
6266     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
6267   fi
6268 fi
6269 if test "$vhost_kernel" = "yes" ; then
6270   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
6271 fi
6272 if test "$vhost_user" = "yes" ; then
6273   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
6274 fi
6275 if test "$vhost_vdpa" = "yes" ; then
6276   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
6277 fi
6278 if test "$vhost_user_fs" = "yes" ; then
6279   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
6280 fi
6281 if test "$iovec" = "yes" ; then
6282   echo "CONFIG_IOVEC=y" >> $config_host_mak
6283 fi
6284 if test "$preadv" = "yes" ; then
6285   echo "CONFIG_PREADV=y" >> $config_host_mak
6286 fi
6287 if test "$membarrier" = "yes" ; then
6288   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
6289 fi
6290 if test "$signalfd" = "yes" ; then
6291   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
6292 fi
6293 if test "$optreset" = "yes" ; then
6294   echo "HAVE_OPTRESET=y" >> $config_host_mak
6295 fi
6296 if test "$tcg" = "enabled"; then
6297   if test "$tcg_interpreter" = "yes" ; then
6298     echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
6299   fi
6300 fi
6301 if test "$fdatasync" = "yes" ; then
6302   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
6303 fi
6304 if test "$madvise" = "yes" ; then
6305   echo "CONFIG_MADVISE=y" >> $config_host_mak
6306 fi
6307 if test "$posix_madvise" = "yes" ; then
6308   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
6309 fi
6310 if test "$posix_memalign" = "yes" ; then
6311   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
6312 fi
6313 if test "$spice" = "yes" ; then
6314   echo "CONFIG_SPICE=y" >> $config_host_mak
6315   echo "SPICE_CFLAGS=$spice_cflags" >> $config_host_mak
6316   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
6317 fi
6318
6319 if test "$smartcard" = "yes" ; then
6320   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
6321   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
6322   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
6323 fi
6324
6325 if test "$libusb" = "yes" ; then
6326   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
6327   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
6328   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
6329 fi
6330
6331 if test "$usb_redir" = "yes" ; then
6332   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
6333   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
6334   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
6335 fi
6336
6337 if test "$opengl" = "yes" ; then
6338   echo "CONFIG_OPENGL=y" >> $config_host_mak
6339   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
6340   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
6341   if test "$opengl_dmabuf" = "yes" ; then
6342     echo "CONFIG_OPENGL_DMABUF=y" >> $config_host_mak
6343   fi
6344 fi
6345
6346 if test "$gbm" = "yes" ; then
6347     echo "CONFIG_GBM=y" >> $config_host_mak
6348     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
6349     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
6350 fi
6351
6352
6353 if test "$avx2_opt" = "yes" ; then
6354   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
6355 fi
6356
6357 if test "$avx512f_opt" = "yes" ; then
6358   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
6359 fi
6360
6361 if test "$lzo" = "yes" ; then
6362   echo "CONFIG_LZO=y" >> $config_host_mak
6363   echo "LZO_LIBS=$lzo_libs" >> $config_host_mak
6364 fi
6365
6366 if test "$snappy" = "yes" ; then
6367   echo "CONFIG_SNAPPY=y" >> $config_host_mak
6368   echo "SNAPPY_LIBS=$snappy_libs" >> $config_host_mak
6369 fi
6370
6371 if test "$bzip2" = "yes" ; then
6372   echo "CONFIG_BZIP2=y" >> $config_host_mak
6373   echo "BZIP2_LIBS=-lbz2" >> $config_host_mak
6374 fi
6375
6376 if test "$lzfse" = "yes" ; then
6377   echo "CONFIG_LZFSE=y" >> $config_host_mak
6378   echo "LZFSE_LIBS=-llzfse" >> $config_host_mak
6379 fi
6380
6381 if test "$zstd" = "yes" ; then
6382   echo "CONFIG_ZSTD=y" >> $config_host_mak
6383   echo "ZSTD_CFLAGS=$zstd_cflags" >> $config_host_mak
6384   echo "ZSTD_LIBS=$zstd_libs" >> $config_host_mak
6385 fi
6386
6387 if test "$libiscsi" = "yes" ; then
6388   echo "CONFIG_LIBISCSI=y" >> $config_host_mak
6389   echo "LIBISCSI_CFLAGS=$libiscsi_cflags" >> $config_host_mak
6390   echo "LIBISCSI_LIBS=$libiscsi_libs" >> $config_host_mak
6391 fi
6392
6393 if test "$libnfs" = "yes" ; then
6394   echo "CONFIG_LIBNFS=y" >> $config_host_mak
6395   echo "LIBNFS_LIBS=$libnfs_libs" >> $config_host_mak
6396 fi
6397
6398 if test "$seccomp" = "yes"; then
6399   echo "CONFIG_SECCOMP=y" >> $config_host_mak
6400   echo "SECCOMP_CFLAGS=$seccomp_cflags" >> $config_host_mak
6401   echo "SECCOMP_LIBS=$seccomp_libs" >> $config_host_mak
6402 fi
6403
6404 # XXX: suppress that
6405 if [ "$bsd" = "yes" ] ; then
6406   echo "CONFIG_BSD=y" >> $config_host_mak
6407 fi
6408
6409 if test "$qom_cast_debug" = "yes" ; then
6410   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
6411 fi
6412 if test "$rbd" = "yes" ; then
6413   echo "CONFIG_RBD=y" >> $config_host_mak
6414   echo "RBD_LIBS=$rbd_libs" >> $config_host_mak
6415 fi
6416
6417 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
6418 if test "$coroutine_pool" = "yes" ; then
6419   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
6420 else
6421   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
6422 fi
6423
6424 if test "$debug_stack_usage" = "yes" ; then
6425   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
6426 fi
6427
6428 if test "$crypto_afalg" = "yes" ; then
6429   echo "CONFIG_AF_ALG=y" >> $config_host_mak
6430 fi
6431
6432 if test "$open_by_handle_at" = "yes" ; then
6433   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
6434 fi
6435
6436 if test "$linux_magic_h" = "yes" ; then
6437   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
6438 fi
6439
6440 if test "$valgrind_h" = "yes" ; then
6441   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
6442 fi
6443
6444 if test "$have_asan_iface_fiber" = "yes" ; then
6445     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
6446 fi
6447
6448 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
6449     echo "CONFIG_TSAN=y" >> $config_host_mak
6450 fi
6451
6452 if test "$has_environ" = "yes" ; then
6453   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
6454 fi
6455
6456 if test "$cpuid_h" = "yes" ; then
6457   echo "CONFIG_CPUID_H=y" >> $config_host_mak
6458 fi
6459
6460 if test "$int128" = "yes" ; then
6461   echo "CONFIG_INT128=y" >> $config_host_mak
6462 fi
6463
6464 if test "$atomic128" = "yes" ; then
6465   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
6466 fi
6467
6468 if test "$cmpxchg128" = "yes" ; then
6469   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
6470 fi
6471
6472 if test "$atomic64" = "yes" ; then
6473   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
6474 fi
6475
6476 if test "$attralias" = "yes" ; then
6477   echo "CONFIG_ATTRIBUTE_ALIAS=y" >> $config_host_mak
6478 fi
6479
6480 if test "$getauxval" = "yes" ; then
6481   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
6482 fi
6483
6484 if test "$glusterfs" = "yes" ; then
6485   echo "CONFIG_GLUSTERFS=y" >> $config_host_mak
6486   echo "GLUSTERFS_CFLAGS=$glusterfs_cflags" >> $config_host_mak
6487   echo "GLUSTERFS_LIBS=$glusterfs_libs" >> $config_host_mak
6488 fi
6489
6490 if test "$glusterfs_xlator_opt" = "yes" ; then
6491   echo "CONFIG_GLUSTERFS_XLATOR_OPT=y" >> $config_host_mak
6492 fi
6493
6494 if test "$glusterfs_discard" = "yes" ; then
6495   echo "CONFIG_GLUSTERFS_DISCARD=y" >> $config_host_mak
6496 fi
6497
6498 if test "$glusterfs_fallocate" = "yes" ; then
6499   echo "CONFIG_GLUSTERFS_FALLOCATE=y" >> $config_host_mak
6500 fi
6501
6502 if test "$glusterfs_zerofill" = "yes" ; then
6503   echo "CONFIG_GLUSTERFS_ZEROFILL=y" >> $config_host_mak
6504 fi
6505
6506 if test "$glusterfs_ftruncate_has_stat" = "yes" ; then
6507   echo "CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT=y" >> $config_host_mak
6508 fi
6509
6510 if test "$glusterfs_iocb_has_stat" = "yes" ; then
6511   echo "CONFIG_GLUSTERFS_IOCB_HAS_STAT=y" >> $config_host_mak
6512 fi
6513
6514 if test "$libssh" = "yes" ; then
6515   echo "CONFIG_LIBSSH=y" >> $config_host_mak
6516   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
6517   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
6518 fi
6519
6520 if test "$live_block_migration" = "yes" ; then
6521   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
6522 fi
6523
6524 if test "$tpm" = "yes"; then
6525   echo 'CONFIG_TPM=y' >> $config_host_mak
6526 fi
6527
6528 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
6529 if have_backend "nop"; then
6530   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
6531 fi
6532 if have_backend "simple"; then
6533   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
6534   # Set the appropriate trace file.
6535   trace_file="\"$trace_file-\" FMT_pid"
6536 fi
6537 if have_backend "log"; then
6538   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
6539 fi
6540 if have_backend "ust"; then
6541   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
6542   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
6543   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
6544 fi
6545 if have_backend "dtrace"; then
6546   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
6547   if test "$trace_backend_stap" = "yes" ; then
6548     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
6549   fi
6550 fi
6551 if have_backend "ftrace"; then
6552   if test "$linux" = "yes" ; then
6553     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
6554   else
6555     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
6556   fi
6557 fi
6558 if have_backend "syslog"; then
6559   if test "$posix_syslog" = "yes" ; then
6560     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
6561   else
6562     feature_not_found "syslog(trace backend)" "syslog not available"
6563   fi
6564 fi
6565 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
6566
6567 if test "$rdma" = "yes" ; then
6568   echo "CONFIG_RDMA=y" >> $config_host_mak
6569   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
6570 fi
6571
6572 if test "$pvrdma" = "yes" ; then
6573   echo "CONFIG_PVRDMA=y" >> $config_host_mak
6574 fi
6575
6576 if test "$have_rtnetlink" = "yes" ; then
6577   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
6578 fi
6579
6580 if test "$libxml2" = "yes" ; then
6581   echo "CONFIG_LIBXML2=y" >> $config_host_mak
6582   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
6583   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
6584 fi
6585
6586 if test "$replication" = "yes" ; then
6587   echo "CONFIG_REPLICATION=y" >> $config_host_mak
6588 fi
6589
6590 if test "$have_af_vsock" = "yes" ; then
6591   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
6592 fi
6593
6594 if test "$have_sysmacros" = "yes" ; then
6595   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
6596 fi
6597
6598 if test "$have_static_assert" = "yes" ; then
6599   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
6600 fi
6601
6602 if test "$have_utmpx" = "yes" ; then
6603   echo "HAVE_UTMPX=y" >> $config_host_mak
6604 fi
6605 if test "$have_getrandom" = "yes" ; then
6606   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
6607 fi
6608 if test "$ivshmem" = "yes" ; then
6609   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
6610 fi
6611 if test "$debug_mutex" = "yes" ; then
6612   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
6613 fi
6614
6615 # Hold two types of flag:
6616 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
6617 #                                     a thread we have a handle to
6618 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
6619 #                                     platform
6620 if test "$pthread_setname_np_w_tid" = "yes" ; then
6621   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6622   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
6623 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
6624   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6625   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
6626 fi
6627
6628 if test "$libpmem" = "yes" ; then
6629   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
6630   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
6631   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
6632 fi
6633
6634 if test "$libdaxctl" = "yes" ; then
6635   echo "CONFIG_LIBDAXCTL=y" >> $config_host_mak
6636   echo "LIBDAXCTL_LIBS=$libdaxctl_libs" >> $config_host_mak
6637 fi
6638
6639 if test "$bochs" = "yes" ; then
6640   echo "CONFIG_BOCHS=y" >> $config_host_mak
6641 fi
6642 if test "$cloop" = "yes" ; then
6643   echo "CONFIG_CLOOP=y" >> $config_host_mak
6644 fi
6645 if test "$dmg" = "yes" ; then
6646   echo "CONFIG_DMG=y" >> $config_host_mak
6647 fi
6648 if test "$qcow1" = "yes" ; then
6649   echo "CONFIG_QCOW1=y" >> $config_host_mak
6650 fi
6651 if test "$vdi" = "yes" ; then
6652   echo "CONFIG_VDI=y" >> $config_host_mak
6653 fi
6654 if test "$vvfat" = "yes" ; then
6655   echo "CONFIG_VVFAT=y" >> $config_host_mak
6656 fi
6657 if test "$qed" = "yes" ; then
6658   echo "CONFIG_QED=y" >> $config_host_mak
6659 fi
6660 if test "$parallels" = "yes" ; then
6661   echo "CONFIG_PARALLELS=y" >> $config_host_mak
6662 fi
6663 if test "$sheepdog" = "yes" ; then
6664   add_to deprecated_features "sheepdog"
6665   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
6666 fi
6667 if test "$pty_h" = "yes" ; then
6668   echo "HAVE_PTY_H=y" >> $config_host_mak
6669 fi
6670 if test "$have_mlockall" = "yes" ; then
6671   echo "HAVE_MLOCKALL=y" >> $config_host_mak
6672 fi
6673 if test "$fuzzing" = "yes" ; then
6674   # If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
6675   # needed CFLAGS have already been provided
6676   if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
6677     QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
6678     FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
6679   else
6680     FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
6681   fi
6682 fi
6683
6684 if test "$plugins" = "yes" ; then
6685     echo "CONFIG_PLUGIN=y" >> $config_host_mak
6686     # Copy the export object list to the build dir
6687     if test "$ld_dynamic_list" = "yes" ; then
6688         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
6689         ld_symbols=qemu-plugins-ld.symbols
6690         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
6691     elif test "$ld_exported_symbols_list" = "yes" ; then
6692         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
6693         ld64_symbols=qemu-plugins-ld64.symbols
6694         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
6695         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
6696             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
6697     else
6698         error_exit \
6699             "If \$plugins=yes, either \$ld_dynamic_list or " \
6700             "\$ld_exported_symbols_list should have been set to 'yes'."
6701     fi
6702 fi
6703
6704 if test -n "$gdb_bin" ; then
6705     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
6706 fi
6707
6708 if test "$secret_keyring" = "yes" ; then
6709   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
6710 fi
6711
6712 echo "ROMS=$roms" >> $config_host_mak
6713 echo "MAKE=$make" >> $config_host_mak
6714 echo "PYTHON=$python" >> $config_host_mak
6715 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
6716 echo "MESON=$meson" >> $config_host_mak
6717 echo "NINJA=$ninja" >> $config_host_mak
6718 echo "CC=$cc" >> $config_host_mak
6719 if $iasl -h > /dev/null 2>&1; then
6720   echo "CONFIG_IASL=$iasl" >> $config_host_mak
6721 fi
6722 echo "CXX=$cxx" >> $config_host_mak
6723 echo "OBJCC=$objcc" >> $config_host_mak
6724 echo "AR=$ar" >> $config_host_mak
6725 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
6726 echo "AS=$as" >> $config_host_mak
6727 echo "CCAS=$ccas" >> $config_host_mak
6728 echo "CPP=$cpp" >> $config_host_mak
6729 echo "OBJCOPY=$objcopy" >> $config_host_mak
6730 echo "LD=$ld" >> $config_host_mak
6731 echo "RANLIB=$ranlib" >> $config_host_mak
6732 echo "NM=$nm" >> $config_host_mak
6733 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
6734 echo "WINDRES=$windres" >> $config_host_mak
6735 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
6736 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
6737 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
6738 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
6739 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
6740 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
6741 echo "LDFLAGS_NOPIE=$LDFLAGS_NOPIE" >> $config_host_mak
6742 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
6743 echo "EXESUF=$EXESUF" >> $config_host_mak
6744 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
6745 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
6746 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
6747 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
6748 if test "$gcov" = "yes" ; then
6749   echo "CONFIG_GCOV=y" >> $config_host_mak
6750 fi
6751
6752 if test "$fuzzing" != "no"; then
6753     echo "CONFIG_FUZZ=y" >> $config_host_mak
6754 fi
6755 echo "FUZZ_EXE_LDFLAGS=$FUZZ_EXE_LDFLAGS" >> $config_host_mak
6756
6757 if test "$rng_none" = "yes"; then
6758   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
6759 fi
6760
6761 # use included Linux headers
6762 if test "$linux" = "yes" ; then
6763   mkdir -p linux-headers
6764   case "$cpu" in
6765   i386|x86_64|x32)
6766     linux_arch=x86
6767     ;;
6768   ppc|ppc64|ppc64le)
6769     linux_arch=powerpc
6770     ;;
6771   s390x)
6772     linux_arch=s390
6773     ;;
6774   aarch64)
6775     linux_arch=arm64
6776     ;;
6777   mips64)
6778     linux_arch=mips
6779     ;;
6780   *)
6781     # For most CPUs the kernel architecture name and QEMU CPU name match.
6782     linux_arch="$cpu"
6783     ;;
6784   esac
6785     # For non-KVM architectures we will not have asm headers
6786     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
6787       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
6788     fi
6789 fi
6790
6791 for target in $target_list; do
6792     target_dir="$target"
6793     target_name=$(echo $target | cut -d '-' -f 1)
6794     mkdir -p $target_dir
6795     case $target in
6796         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
6797         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
6798     esac
6799 done
6800
6801 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
6802 if test "$default_targets" = "yes"; then
6803   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
6804 fi
6805
6806 if test "$numa" = "yes"; then
6807   echo "CONFIG_NUMA=y" >> $config_host_mak
6808   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
6809 fi
6810
6811 if test "$ccache_cpp2" = "yes"; then
6812   echo "export CCACHE_CPP2=y" >> $config_host_mak
6813 fi
6814
6815 if test "$safe_stack" = "yes"; then
6816   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
6817 fi
6818
6819 # If we're using a separate build tree, set it up now.
6820 # DIRS are directories which we simply mkdir in the build tree;
6821 # LINKS are things to symlink back into the source tree
6822 # (these can be both files and directories).
6823 # Caution: do not add files or directories here using wildcards. This
6824 # will result in problems later if a new file matching the wildcard is
6825 # added to the source tree -- nothing will cause configure to be rerun
6826 # so the build tree will be missing the link back to the new file, and
6827 # tests might fail. Prefer to keep the relevant files in their own
6828 # directory and symlink the directory instead.
6829 # UNLINK is used to remove symlinks from older development versions
6830 # that might get into the way when doing "git update" without doing
6831 # a "make distclean" in between.
6832 DIRS="tests tests/tcg tests/tcg/lm32 tests/qapi-schema tests/qtest/libqos"
6833 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
6834 DIRS="$DIRS docs docs/interop fsdev scsi"
6835 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
6836 DIRS="$DIRS roms/seabios"
6837 DIRS="$DIRS contrib/plugins/"
6838 LINKS="Makefile"
6839 LINKS="$LINKS tests/tcg/lm32/Makefile"
6840 LINKS="$LINKS tests/tcg/Makefile.target"
6841 LINKS="$LINKS pc-bios/optionrom/Makefile"
6842 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
6843 LINKS="$LINKS roms/seabios/Makefile"
6844 LINKS="$LINKS pc-bios/qemu-icon.bmp"
6845 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
6846 LINKS="$LINKS tests/acceptance tests/data"
6847 LINKS="$LINKS tests/qemu-iotests/check"
6848 LINKS="$LINKS python"
6849 LINKS="$LINKS contrib/plugins/Makefile "
6850 UNLINK="pc-bios/keymaps"
6851 for bios_file in \
6852     $source_path/pc-bios/*.bin \
6853     $source_path/pc-bios/*.elf \
6854     $source_path/pc-bios/*.lid \
6855     $source_path/pc-bios/*.rom \
6856     $source_path/pc-bios/*.dtb \
6857     $source_path/pc-bios/*.img \
6858     $source_path/pc-bios/openbios-* \
6859     $source_path/pc-bios/u-boot.* \
6860     $source_path/pc-bios/edk2-*.fd.bz2 \
6861     $source_path/pc-bios/palcode-*
6862 do
6863     LINKS="$LINKS pc-bios/$(basename $bios_file)"
6864 done
6865 mkdir -p $DIRS
6866 for f in $LINKS ; do
6867     if [ -e "$source_path/$f" ]; then
6868         symlink "$source_path/$f" "$f"
6869     fi
6870 done
6871 for f in $UNLINK ; do
6872     if [ -L "$f" ]; then
6873         rm -f "$f"
6874     fi
6875 done
6876
6877 (for i in $cross_cc_vars; do
6878   export $i
6879 done
6880 export target_list source_path use_containers
6881 $source_path/tests/tcg/configure.sh)
6882
6883 # temporary config to build submodules
6884 for rom in seabios; do
6885     config_mak=roms/$rom/config.mak
6886     echo "# Automatically generated by configure - do not modify" > $config_mak
6887     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
6888     echo "AS=$as" >> $config_mak
6889     echo "CCAS=$ccas" >> $config_mak
6890     echo "CC=$cc" >> $config_mak
6891     echo "BCC=bcc" >> $config_mak
6892     echo "CPP=$cpp" >> $config_mak
6893     echo "OBJCOPY=objcopy" >> $config_mak
6894     echo "IASL=$iasl" >> $config_mak
6895     echo "LD=$ld" >> $config_mak
6896     echo "RANLIB=$ranlib" >> $config_mak
6897 done
6898
6899 # set up qemu-iotests in this build directory
6900 iotests_common_env="tests/qemu-iotests/common.env"
6901
6902 echo "# Automatically generated by configure - do not modify" > "$iotests_common_env"
6903 echo >> "$iotests_common_env"
6904 echo "export PYTHON='$python'" >> "$iotests_common_env"
6905
6906 if test "$skip_meson" = no; then
6907 cross="config-meson.cross.new"
6908 meson_quote() {
6909     echo "'$(echo $* | sed "s/ /','/g")'"
6910 }
6911
6912 echo "# Automatically generated by configure - do not modify" > $cross
6913 echo "[properties]" >> $cross
6914 test -z "$cxx" && echo "link_language = 'c'" >> $cross
6915 echo "[built-in options]" >> $cross
6916 echo "c_args = [${CFLAGS:+$(meson_quote $CFLAGS)}]" >> $cross
6917 echo "cpp_args = [${CXXFLAGS:+$(meson_quote $CXXFLAGS)}]" >> $cross
6918 echo "c_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6919 echo "cpp_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6920 echo "[binaries]" >> $cross
6921 echo "c = [$(meson_quote $cc)]" >> $cross
6922 test -n "$cxx" && echo "cpp = [$(meson_quote $cxx)]" >> $cross
6923 echo "ar = [$(meson_quote $ar)]" >> $cross
6924 echo "nm = [$(meson_quote $nm)]" >> $cross
6925 echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
6926 echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
6927 if has $sdl2_config; then
6928   echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
6929 fi
6930 echo "strip = [$(meson_quote $strip)]" >> $cross
6931 echo "windres = [$(meson_quote $windres)]" >> $cross
6932 if test -n "$cross_prefix"; then
6933     cross_arg="--cross-file config-meson.cross"
6934     echo "[host_machine]" >> $cross
6935     if test "$mingw32" = "yes" ; then
6936         echo "system = 'windows'" >> $cross
6937     fi
6938     if test "$linux" = "yes" ; then
6939         echo "system = 'linux'" >> $cross
6940     fi
6941     case "$ARCH" in
6942         i386|x86_64)
6943             echo "cpu_family = 'x86'" >> $cross
6944             ;;
6945         ppc64le)
6946             echo "cpu_family = 'ppc64'" >> $cross
6947             ;;
6948         *)
6949             echo "cpu_family = '$ARCH'" >> $cross
6950             ;;
6951     esac
6952     echo "cpu = '$cpu'" >> $cross
6953     if test "$bigendian" = "yes" ; then
6954         echo "endian = 'big'" >> $cross
6955     else
6956         echo "endian = 'little'" >> $cross
6957     fi
6958 else
6959     cross_arg="--native-file config-meson.cross"
6960 fi
6961 mv $cross config-meson.cross
6962
6963 rm -rf meson-private meson-info meson-logs
6964 NINJA=$ninja $meson setup \
6965         --prefix "$prefix" \
6966         --libdir "$libdir" \
6967         --libexecdir "$libexecdir" \
6968         --bindir "$bindir" \
6969         --includedir "$includedir" \
6970         --datadir "$datadir" \
6971         --mandir "$mandir" \
6972         --sysconfdir "$sysconfdir" \
6973         --localedir "$localedir" \
6974         --localstatedir "$local_statedir" \
6975         -Ddocdir="$docdir" \
6976         -Dqemu_firmwarepath="$firmwarepath" \
6977         -Dqemu_suffix="$qemu_suffix" \
6978         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
6979         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
6980         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
6981         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
6982         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
6983         -Db_staticpic=$(if test "$pie" = yes; then echo true; else echo false; fi) \
6984         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
6985         -Dmalloc=$malloc -Dmalloc_trim=$malloc_trim -Dsparse=$sparse \
6986         -Dkvm=$kvm -Dhax=$hax -Dwhpx=$whpx -Dhvf=$hvf \
6987         -Dxen=$xen -Dxen_pci_passthrough=$xen_pci_passthrough -Dtcg=$tcg \
6988         -Dcocoa=$cocoa -Dmpath=$mpath -Dsdl=$sdl -Dsdl_image=$sdl_image \
6989         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
6990         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f -Dvirtiofsd=$virtiofsd \
6991         -Dcapstone=$capstone -Dslirp=$slirp -Dfdt=$fdt \
6992         -Diconv=$iconv -Dcurses=$curses -Dlibudev=$libudev\
6993         -Ddocs=$docs -Dsphinx_build=$sphinx_build -Dinstall_blobs=$blobs \
6994         $cross_arg \
6995         "$PWD" "$source_path"
6996
6997 if test "$?" -ne 0 ; then
6998     error_exit "meson setup failed"
6999 fi
7000 fi
7001
7002 if test -n "${deprecated_features}"; then
7003     echo "Warning, deprecated features enabled."
7004     echo "Please see docs/system/deprecated.rst"
7005     echo "  features: ${deprecated_features}"
7006 fi
7007
7008 # Save the configure command line for later reuse.
7009 cat <<EOD >config.status
7010 #!/bin/sh
7011 # Generated by configure.
7012 # Run this file to recreate the current configuration.
7013 # Compiler output produced by configure, useful for debugging
7014 # configure, is in config.log if it exists.
7015 EOD
7016
7017 preserve_env() {
7018     envname=$1
7019
7020     eval envval=\$$envname
7021
7022     if test -n "$envval"
7023     then
7024         echo "$envname='$envval'" >> config.status
7025         echo "export $envname" >> config.status
7026     else
7027         echo "unset $envname" >> config.status
7028     fi
7029 }
7030
7031 # Preserve various env variables that influence what
7032 # features/build target configure will detect
7033 preserve_env AR
7034 preserve_env AS
7035 preserve_env CC
7036 preserve_env CPP
7037 preserve_env CXX
7038 preserve_env INSTALL
7039 preserve_env LD
7040 preserve_env LD_LIBRARY_PATH
7041 preserve_env LIBTOOL
7042 preserve_env MAKE
7043 preserve_env NM
7044 preserve_env OBJCOPY
7045 preserve_env PATH
7046 preserve_env PKG_CONFIG
7047 preserve_env PKG_CONFIG_LIBDIR
7048 preserve_env PKG_CONFIG_PATH
7049 preserve_env PYTHON
7050 preserve_env SDL2_CONFIG
7051 preserve_env SMBD
7052 preserve_env STRIP
7053 preserve_env WINDRES
7054
7055 printf "exec" >>config.status
7056 for i in "$0" "$@"; do
7057   test "$i" = --skip-meson || printf " '%s'" "$i" >>config.status
7058 done
7059 echo ' "$@"' >>config.status
7060 chmod +x config.status
7061
7062 rm -r "$TMPDIR1"