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
  82 rm -f config.log
  83
  84 # Print a helpful header at the top of config.log
  85 echo "# QEMU configure log $(date)" >> config.log
  86 printf "# Configured with:" >> config.log
  87 printf " '%s'" "$0" "$@" >> config.log
  88 echo >> config.log
  89 echo "#" >> config.log
  90
  91 quote_sh() {
  92     printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
  93 }
  94
  95 print_error() {
  96     (echo
  97     echo "ERROR: $1"
  98     while test -n "$2"; do
  99         echo "       $2"
 100         shift
 101     done
 102     echo) >&2
 103 }
 104
 105 error_exit() {
 106     print_error "$@"
 107     exit 1
 108 }
 109
 110 do_compiler() {
 111     # Run the compiler, capturing its output to the log. First argument
 112     # is compiler binary to execute.
 113     compiler="$1"
 114     shift
 115     if test -n "$BASH_VERSION"; then eval '
 116         echo >>config.log "
 117 funcs: ${FUNCNAME[*]}
 118 lines: ${BASH_LINENO[*]}"
 119     '; fi
 120     echo $compiler "$@" >> config.log
 121     $compiler "$@" >> config.log 2>&1 || return $?
 122     # Test passed. If this is an --enable-werror build, rerun
 123     # the test with -Werror and bail out if it fails. This
 124     # makes warning-generating-errors in configure test code
 125     # obvious to developers.
 126     if test "$werror" != "yes"; then
 127         return 0
 128     fi
 129     # Don't bother rerunning the compile if we were already using -Werror
 130     case "$*" in
 131         *-Werror*)
 132            return 0
 133         ;;
 134     esac
 135     echo $compiler -Werror "$@" >> config.log
 136     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 137     error_exit "configure test passed without -Werror but failed with -Werror." \
 138         "This is probably a bug in the configure script. The failing command" \
 139         "will be at the bottom of config.log." \
 140         "You can run configure with --disable-werror to bypass this check."
 141 }
 142
 143 do_cc() {
 144     do_compiler "$cc" $CPU_CFLAGS "$@"
 145 }
 146
 147 do_cxx() {
 148     do_compiler "$cxx" $CPU_CFLAGS "$@"
 149 }
 150
 151 # Append $2 to the variable named $1, with space separation
 152 add_to() {
 153     eval $1=\${$1:+\"\$$1 \"}\$2
 154 }
 155
 156 update_cxxflags() {
 157     # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
 158     # options which some versions of GCC's C++ compiler complain about
 159     # because they only make sense for C programs.
 160     QEMU_CXXFLAGS="-D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
 161     CONFIGURE_CXXFLAGS=$(echo "$CONFIGURE_CFLAGS" | sed s/-std=gnu11/-std=gnu++11/)
 162     for arg in $QEMU_CFLAGS; do
 163         case $arg in
 164             -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
 165             -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
 166                 ;;
 167             *)
 168                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
 169                 ;;
 170         esac
 171     done
 172 }
 173
 174 compile_object() {
 175   local_cflags="$1"
 176   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 177 }
 178
 179 compile_prog() {
 180   local_cflags="$1"
 181   local_ldflags="$2"
 182   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 183       $LDFLAGS $EXTRA_LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 184 }
 185
 186 # symbolically link $1 to $2.  Portable version of "ln -sf".
 187 symlink() {
 188   rm -rf "$2"
 189   mkdir -p "$(dirname "$2")"
 190   ln -s "$1" "$2"
 191 }
 192
 193 # check whether a command is available to this shell (may be either an
 194 # executable or a builtin)
 195 has() {
 196     type "$1" >/dev/null 2>&1
 197 }
 198
 199 version_ge () {
 200     local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
 201     local_ver2=$(echo "$2" | tr . ' ')
 202     while true; do
 203         set x $local_ver1
 204         local_first=${2-0}
 205         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 206         shift ${2:+2}
 207         local_ver1=$*
 208         set x $local_ver2
 209         # the second argument finished, the first must be greater or equal
 210         test $# = 1 && return 0
 211         test $local_first -lt $2 && return 1
 212         test $local_first -gt $2 && return 0
 213         shift ${2:+2}
 214         local_ver2=$*
 215     done
 216 }
 217
 218 glob() {
 219     eval test -z '"${1#'"$2"'}"'
 220 }
 221
 222 ld_has() {
 223     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 224 }
 225
 226 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 227 then
 228   error_exit "main directory cannot contain spaces nor colons"
 229 fi
 230
 231 # default parameters
 232 cpu=""
 233 iasl="iasl"
 234 interp_prefix="/usr/gnemul/qemu-%M"
 235 static="no"
 236 cross_compile="no"
 237 cross_prefix=""
 238 audio_drv_list="default"
 239 block_drv_rw_whitelist=""
 240 block_drv_ro_whitelist=""
 241 host_cc="cc"
 242 debug_info="yes"
 243 lto="false"
 244 stack_protector=""
 245 safe_stack=""
 246 use_containers="yes"
 247 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 248
 249 if test -e "$source_path/.git"
 250 then
 251     git_submodules_action="update"
 252 else
 253     git_submodules_action="ignore"
 254 fi
 255
 256 git_submodules="ui/keycodemapdb"
 257 git="git"
 258
 259 # Don't accept a target_list environment variable.
 260 unset target_list
 261 unset target_list_exclude
 262
 263 # Default value for a variable defining feature "foo".
 264 #  * foo="no"  feature will only be used if --enable-foo arg is given
 265 #  * foo=""    feature will be searched for, and if found, will be used
 266 #              unless --disable-foo is given
 267 #  * foo="yes" this value will only be set by --enable-foo flag.
 268 #              feature will searched for,
 269 #              if not found, configure exits with error
 270 #
 271 # Always add --enable-foo and --disable-foo command line args.
 272 # Distributions want to ensure that several features are compiled in, and it
 273 # is impossible without a --enable-foo that exits if a feature is not found.
 274
 275 default_feature=""
 276 # parse CC options second
 277 for opt do
 278   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 279   case "$opt" in
 280       --without-default-features)
 281           default_feature="no"
 282   ;;
 283   esac
 284 done
 285
 286 EXTRA_CFLAGS=""
 287 EXTRA_CXXFLAGS=""
 288 EXTRA_LDFLAGS=""
 289
 290 xen_ctrl_version="$default_feature"
 291 vhost_kernel="$default_feature"
 292 vhost_net="$default_feature"
 293 vhost_crypto="$default_feature"
 294 vhost_scsi="$default_feature"
 295 vhost_vsock="$default_feature"
 296 vhost_user="no"
 297 vhost_user_fs="$default_feature"
 298 vhost_vdpa="$default_feature"
 299 rdma="$default_feature"
 300 pvrdma="$default_feature"
 301 debug_tcg="no"
 302 debug="no"
 303 sanitizers="no"
 304 tsan="no"
 305 fortify_source="$default_feature"
 306 gcov="no"
 307 EXESUF=""
 308 modules="no"
 309 module_upgrades="no"
 310 prefix="/usr/local"
 311 qemu_suffix="qemu"
 312 softmmu="yes"
 313 linux_user=""
 314 bsd_user=""
 315 pkgversion=""
 316 pie=""
 317 trace_backends="log"
 318 trace_file="trace"
 319 opengl="$default_feature"
 320 guest_agent="$default_feature"
 321 vss_win32_sdk="$default_feature"
 322 win_sdk="no"
 323 want_tools="$default_feature"
 324 coroutine=""
 325 coroutine_pool="$default_feature"
 326 debug_stack_usage="no"
 327 tls_priority="NORMAL"
 328 plugins="$default_feature"
 329 secret_keyring="$default_feature"
 330 meson=""
 331 meson_args=""
 332 ninja=""
 333 gio="$default_feature"
 334 skip_meson=no
 335 slirp_smbd="$default_feature"
 336
 337 # The following Meson options are handled manually (still they
 338 # are included in the automatically generated help message)
 339
 340 # 1. Track which submodules are needed
 341 capstone="auto"
 342 fdt="auto"
 343 slirp="auto"
 344
 345 # 2. Support --with/--without option
 346 default_devices="true"
 347
 348 # 3. Automatically enable/disable other options
 349 tcg="enabled"
 350 cfi="false"
 351
 352 # 4. Detection partly done in configure
 353 xen=${default_feature:+disabled}
 354
 355 # parse CC options second
 356 for opt do
 357   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 358   case "$opt" in
 359   --cross-prefix=*) cross_prefix="$optarg"
 360                     cross_compile="yes"
 361   ;;
 362   --cc=*) CC="$optarg"
 363   ;;
 364   --cxx=*) CXX="$optarg"
 365   ;;
 366   --cpu=*) cpu="$optarg"
 367   ;;
 368   --extra-cflags=*)
 369     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 370     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 371     ;;
 372   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 373   ;;
 374   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 375   ;;
 376   --enable-debug-info) debug_info="yes"
 377   ;;
 378   --disable-debug-info) debug_info="no"
 379   ;;
 380   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 381   ;;
 382   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 383                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 384                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 385   ;;
 386   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 387                 cc_archs="$cc_archs $cc_arch"
 388                 eval "cross_cc_${cc_arch}=\$optarg"
 389                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 390   ;;
 391   esac
 392 done
 393 # OS specific
 394 # Using uname is really, really broken.  Once we have the right set of checks
 395 # we can eliminate its usage altogether.
 396
 397 # Preferred compiler:
 398 #  ${CC} (if set)
 399 #  ${cross_prefix}gcc (if cross-prefix specified)
 400 #  system compiler
 401 if test -z "${CC}${cross_prefix}"; then
 402   cc="$host_cc"
 403 else
 404   cc="${CC-${cross_prefix}gcc}"
 405 fi
 406
 407 if test -z "${CXX}${cross_prefix}"; then
 408   cxx="c++"
 409 else
 410   cxx="${CXX-${cross_prefix}g++}"
 411 fi
 412
 413 ar="${AR-${cross_prefix}ar}"
 414 as="${AS-${cross_prefix}as}"
 415 ccas="${CCAS-$cc}"
 416 cpp="${CPP-$cc -E}"
 417 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 418 ld="${LD-${cross_prefix}ld}"
 419 ranlib="${RANLIB-${cross_prefix}ranlib}"
 420 nm="${NM-${cross_prefix}nm}"
 421 strip="${STRIP-${cross_prefix}strip}"
 422 windres="${WINDRES-${cross_prefix}windres}"
 423 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 424 query_pkg_config() {
 425     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 426 }
 427 pkg_config=query_pkg_config
 428 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 429
 430 # default flags for all hosts
 431 # We use -fwrapv to tell the compiler that we require a C dialect where
 432 # left shift of signed integers is well defined and has the expected
 433 # 2s-complement style results. (Both clang and gcc agree that it
 434 # provides these semantics.)
 435 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 436 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 437 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 438 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 439
 440 QEMU_LDFLAGS=
 441
 442 # Flags that are needed during configure but later taken care of by Meson
 443 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 444 CONFIGURE_LDFLAGS=
 445
 446
 447 check_define() {
 448 cat > $TMPC <<EOF
 449 #if !defined($1)
 450 #error $1 not defined
 451 #endif
 452 int main(void) { return 0; }
 453 EOF
 454   compile_object
 455 }
 456
 457 check_include() {
 458 cat > $TMPC <<EOF
 459 #include <$1>
 460 int main(void) { return 0; }
 461 EOF
 462   compile_object
 463 }
 464
 465 write_c_skeleton() {
 466     cat > $TMPC <<EOF
 467 int main(void) { return 0; }
 468 EOF
 469 }
 470
 471 if check_define __linux__ ; then
 472   targetos=linux
 473 elif check_define _WIN32 ; then
 474   targetos=windows
 475 elif check_define __OpenBSD__ ; then
 476   targetos=openbsd
 477 elif check_define __sun__ ; then
 478   targetos=sunos
 479 elif check_define __HAIKU__ ; then
 480   targetos=haiku
 481 elif check_define __FreeBSD__ ; then
 482   targetos=freebsd
 483 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 484   targetos=gnu/kfreebsd
 485 elif check_define __DragonFly__ ; then
 486   targetos=dragonfly
 487 elif check_define __NetBSD__; then
 488   targetos=netbsd
 489 elif check_define __APPLE__; then
 490   targetos=darwin
 491 else
 492   # This is a fatal error, but don't report it yet, because we
 493   # might be going to just print the --help text, or it might
 494   # be the result of a missing compiler.
 495   targetos=bogus
 496 fi
 497
 498 # OS specific
 499
 500 mingw32="no"
 501 bsd="no"
 502 linux="no"
 503 solaris="no"
 504 case $targetos in
 505 windows)
 506   mingw32="yes"
 507   plugins="no"
 508   pie="no"
 509 ;;
 510 gnu/kfreebsd)
 511   bsd="yes"
 512 ;;
 513 freebsd)
 514   bsd="yes"
 515   make="${MAKE-gmake}"
 516   # needed for kinfo_getvmmap(3) in libutil.h
 517 ;;
 518 dragonfly)
 519   bsd="yes"
 520   make="${MAKE-gmake}"
 521 ;;
 522 netbsd)
 523   bsd="yes"
 524   make="${MAKE-gmake}"
 525 ;;
 526 openbsd)
 527   bsd="yes"
 528   make="${MAKE-gmake}"
 529 ;;
 530 darwin)
 531   bsd="yes"
 532   darwin="yes"
 533   # Disable attempts to use ObjectiveC features in os/object.h since they
 534   # won't work when we're compiling with gcc as a C compiler.
 535   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 536 ;;
 537 sunos)
 538   solaris="yes"
 539   make="${MAKE-gmake}"
 540   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 541 # needed for CMSG_ macros in sys/socket.h
 542   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 543 # needed for TIOCWIN* defines in termios.h
 544   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 545   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 546   # Note that this check is broken for cross-compilation: if you're
 547   # cross-compiling to one of these OSes then you'll need to specify
 548   # the correct CPU with the --cpu option.
 549   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 550     cpu="x86_64"
 551   fi
 552 ;;
 553 haiku)
 554   pie="no"
 555   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 556 ;;
 557 linux)
 558   linux="yes"
 559   vhost_user=${default_feature:-yes}
 560 ;;
 561 esac
 562
 563 if test ! -z "$cpu" ; then
 564   # command line argument
 565   :
 566 elif check_define __i386__ ; then
 567   cpu="i386"
 568 elif check_define __x86_64__ ; then
 569   if check_define __ILP32__ ; then
 570     cpu="x32"
 571   else
 572     cpu="x86_64"
 573   fi
 574 elif check_define __sparc__ ; then
 575   if check_define __arch64__ ; then
 576     cpu="sparc64"
 577   else
 578     cpu="sparc"
 579   fi
 580 elif check_define _ARCH_PPC ; then
 581   if check_define _ARCH_PPC64 ; then
 582     if check_define _LITTLE_ENDIAN ; then
 583       cpu="ppc64le"
 584     else
 585       cpu="ppc64"
 586     fi
 587   else
 588     cpu="ppc"
 589   fi
 590 elif check_define __mips__ ; then
 591   cpu="mips"
 592 elif check_define __s390__ ; then
 593   if check_define __s390x__ ; then
 594     cpu="s390x"
 595   else
 596     cpu="s390"
 597   fi
 598 elif check_define __riscv ; then
 599   cpu="riscv"
 600 elif check_define __arm__ ; then
 601   cpu="arm"
 602 elif check_define __aarch64__ ; then
 603   cpu="aarch64"
 604 elif check_define __loongarch64 ; then
 605   cpu="loongarch64"
 606 else
 607   cpu=$(uname -m)
 608 fi
 609
 610 # Normalise host CPU name, set multilib cflags
 611 # Note that this case should only have supported host CPUs, not guests.
 612 case "$cpu" in
 613   armv*b|armv*l|arm)
 614     cpu="arm" ;;
 615
 616   i386|i486|i586|i686|i86pc|BePC)
 617     cpu="i386"
 618     CPU_CFLAGS="-m32" ;;
 619   x32)
 620     cpu="x86_64"
 621     CPU_CFLAGS="-mx32" ;;
 622   x86_64|amd64)
 623     cpu="x86_64"
 624     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 625     # If we truly care, we should simply detect this case at
 626     # runtime and generate the fallback to serial emulation.
 627     CPU_CFLAGS="-m64 -mcx16" ;;
 628
 629   mips*)
 630     cpu="mips" ;;
 631
 632   ppc)
 633     CPU_CFLAGS="-m32" ;;
 634   ppc64)
 635     CPU_CFLAGS="-m64 -mbig" ;;
 636   ppc64le)
 637     cpu="ppc64"
 638     CPU_CFLAGS="-m64 -mlittle" ;;
 639
 640   s390)
 641     CPU_CFLAGS="-m31" ;;
 642   s390x)
 643     CPU_CFLAGS="-m64" ;;
 644
 645   sparc|sun4[cdmuv])
 646     cpu="sparc"
 647     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 648   sparc64)
 649     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 650 esac
 651
 652 : ${make=${MAKE-make}}
 653
 654 # We prefer python 3.x. A bare 'python' is traditionally
 655 # python 2.x, but some distros have it as python 3.x, so
 656 # we check that too
 657 python=
 658 explicit_python=no
 659 for binary in "${PYTHON-python3}" python
 660 do
 661     if has "$binary"
 662     then
 663         python=$(command -v "$binary")
 664         break
 665     fi
 666 done
 667
 668
 669 # Check for ancillary tools used in testing
 670 genisoimage=
 671 for binary in genisoimage mkisofs
 672 do
 673     if has $binary
 674     then
 675         genisoimage=$(command -v "$binary")
 676         break
 677     fi
 678 done
 679
 680 # Default objcc to clang if available, otherwise use CC
 681 if has clang; then
 682   objcc=clang
 683 else
 684   objcc="$cc"
 685 fi
 686
 687 if test "$mingw32" = "yes" ; then
 688   EXESUF=".exe"
 689   # MinGW needs -mthreads for TLS and macro _MT.
 690   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 691   write_c_skeleton;
 692   prefix="/qemu"
 693   qemu_suffix=""
 694 fi
 695
 696 werror=""
 697
 698 . $source_path/scripts/meson-buildoptions.sh
 699
 700 meson_options=
 701 meson_option_parse() {
 702   meson_options="$meson_options $(_meson_option_parse "$@")"
 703   if test $? -eq 1; then
 704     echo "ERROR: unknown option $1"
 705     echo "Try '$0 --help' for more information"
 706     exit 1
 707   fi
 708 }
 709
 710 for opt do
 711   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 712   case "$opt" in
 713   --help|-h) show_help=yes
 714   ;;
 715   --version|-V) exec cat $source_path/VERSION
 716   ;;
 717   --prefix=*) prefix="$optarg"
 718   ;;
 719   --interp-prefix=*) interp_prefix="$optarg"
 720   ;;
 721   --cross-prefix=*)
 722   ;;
 723   --cc=*)
 724   ;;
 725   --host-cc=*) host_cc="$optarg"
 726   ;;
 727   --cxx=*)
 728   ;;
 729   --iasl=*) iasl="$optarg"
 730   ;;
 731   --objcc=*) objcc="$optarg"
 732   ;;
 733   --make=*) make="$optarg"
 734   ;;
 735   --install=*)
 736   ;;
 737   --python=*) python="$optarg" ; explicit_python=yes
 738   ;;
 739   --sphinx-build=*) sphinx_build="$optarg"
 740   ;;
 741   --skip-meson) skip_meson=yes
 742   ;;
 743   --meson=*) meson="$optarg"
 744   ;;
 745   --ninja=*) ninja="$optarg"
 746   ;;
 747   --smbd=*) smbd="$optarg"
 748   ;;
 749   --extra-cflags=*)
 750   ;;
 751   --extra-cxxflags=*)
 752   ;;
 753   --extra-ldflags=*)
 754   ;;
 755   --enable-debug-info)
 756   ;;
 757   --disable-debug-info)
 758   ;;
 759   --cross-cc-*)
 760   ;;
 761   --enable-modules)
 762       modules="yes"
 763   ;;
 764   --disable-modules)
 765       modules="no"
 766   ;;
 767   --disable-module-upgrades) module_upgrades="no"
 768   ;;
 769   --enable-module-upgrades) module_upgrades="yes"
 770   ;;
 771   --cpu=*)
 772   ;;
 773   --target-list=*) target_list="$optarg"
 774                    if test "$target_list_exclude"; then
 775                        error_exit "Can't mix --target-list with --target-list-exclude"
 776                    fi
 777   ;;
 778   --target-list-exclude=*) target_list_exclude="$optarg"
 779                    if test "$target_list"; then
 780                        error_exit "Can't mix --target-list-exclude with --target-list"
 781                    fi
 782   ;;
 783   --with-trace-file=*) trace_file="$optarg"
 784   ;;
 785   --with-default-devices) default_devices="true"
 786   ;;
 787   --without-default-devices) default_devices="false"
 788   ;;
 789   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 790   ;;
 791   --with-devices-*) device_arch=${opt#--with-devices-};
 792                     device_arch=${device_arch%%=*}
 793                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 794                     if test -f "$cf"; then
 795                         device_archs="$device_archs $device_arch"
 796                         eval "devices_${device_arch}=\$optarg"
 797                     else
 798                         error_exit "File $cf does not exist"
 799                     fi
 800   ;;
 801   --without-default-features) # processed above
 802   ;;
 803   --enable-gcov) gcov="yes"
 804   ;;
 805   --static)
 806     static="yes"
 807     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 808   ;;
 809   --mandir=*) mandir="$optarg"
 810   ;;
 811   --bindir=*) bindir="$optarg"
 812   ;;
 813   --libdir=*) libdir="$optarg"
 814   ;;
 815   --libexecdir=*) libexecdir="$optarg"
 816   ;;
 817   --includedir=*) includedir="$optarg"
 818   ;;
 819   --datadir=*) datadir="$optarg"
 820   ;;
 821   --with-suffix=*) qemu_suffix="$optarg"
 822   ;;
 823   --docdir=*) docdir="$optarg"
 824   ;;
 825   --localedir=*) localedir="$optarg"
 826   ;;
 827   --sysconfdir=*) sysconfdir="$optarg"
 828   ;;
 829   --localstatedir=*) local_statedir="$optarg"
 830   ;;
 831   --firmwarepath=*) firmwarepath="$optarg"
 832   ;;
 833   --host=*|--build=*|\
 834   --disable-dependency-tracking|\
 835   --sbindir=*|--sharedstatedir=*|\
 836   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 837   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 838     # These switches are silently ignored, for compatibility with
 839     # autoconf-generated configure scripts. This allows QEMU's
 840     # configure to be used by RPM and similar macros that set
 841     # lots of directory switches by default.
 842   ;;
 843   --audio-drv-list=*) audio_drv_list="$optarg"
 844   ;;
 845   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
 846   ;;
 847   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
 848   ;;
 849   --enable-debug-tcg) debug_tcg="yes"
 850   ;;
 851   --disable-debug-tcg) debug_tcg="no"
 852   ;;
 853   --enable-debug)
 854       # Enable debugging options that aren't excessively noisy
 855       debug_tcg="yes"
 856       meson_option_parse --enable-debug-mutex ""
 857       debug="yes"
 858       fortify_source="no"
 859   ;;
 860   --enable-sanitizers) sanitizers="yes"
 861   ;;
 862   --disable-sanitizers) sanitizers="no"
 863   ;;
 864   --enable-tsan) tsan="yes"
 865   ;;
 866   --disable-tsan) tsan="no"
 867   ;;
 868   --disable-slirp) slirp="disabled"
 869   ;;
 870   --enable-slirp) slirp="enabled"
 871   ;;
 872   --enable-slirp=git) slirp="internal"
 873   ;;
 874   --enable-slirp=*) slirp="$optarg"
 875   ;;
 876   --disable-xen) xen="disabled"
 877   ;;
 878   --enable-xen) xen="enabled"
 879   ;;
 880   --disable-tcg) tcg="disabled"
 881                  plugins="no"
 882   ;;
 883   --enable-tcg) tcg="enabled"
 884   ;;
 885   --disable-system) softmmu="no"
 886   ;;
 887   --enable-system) softmmu="yes"
 888   ;;
 889   --disable-user)
 890       linux_user="no" ;
 891       bsd_user="no" ;
 892   ;;
 893   --enable-user) ;;
 894   --disable-linux-user) linux_user="no"
 895   ;;
 896   --enable-linux-user) linux_user="yes"
 897   ;;
 898   --disable-bsd-user) bsd_user="no"
 899   ;;
 900   --enable-bsd-user) bsd_user="yes"
 901   ;;
 902   --enable-pie) pie="yes"
 903   ;;
 904   --disable-pie) pie="no"
 905   ;;
 906   --enable-werror) werror="yes"
 907   ;;
 908   --disable-werror) werror="no"
 909   ;;
 910   --enable-lto) lto="true"
 911   ;;
 912   --disable-lto) lto="false"
 913   ;;
 914   --enable-stack-protector) stack_protector="yes"
 915   ;;
 916   --disable-stack-protector) stack_protector="no"
 917   ;;
 918   --enable-safe-stack) safe_stack="yes"
 919   ;;
 920   --disable-safe-stack) safe_stack="no"
 921   ;;
 922   --enable-cfi)
 923       cfi="true";
 924       lto="true";
 925   ;;
 926   --disable-cfi) cfi="false"
 927   ;;
 928   --disable-fdt) fdt="disabled"
 929   ;;
 930   --enable-fdt) fdt="enabled"
 931   ;;
 932   --enable-fdt=git) fdt="internal"
 933   ;;
 934   --enable-fdt=*) fdt="$optarg"
 935   ;;
 936   --with-pkgversion=*) pkgversion="$optarg"
 937   ;;
 938   --with-coroutine=*) coroutine="$optarg"
 939   ;;
 940   --disable-coroutine-pool) coroutine_pool="no"
 941   ;;
 942   --enable-coroutine-pool) coroutine_pool="yes"
 943   ;;
 944   --enable-debug-stack-usage) debug_stack_usage="yes"
 945   ;;
 946   --disable-vhost-net) vhost_net="no"
 947   ;;
 948   --enable-vhost-net) vhost_net="yes"
 949   ;;
 950   --disable-vhost-crypto) vhost_crypto="no"
 951   ;;
 952   --enable-vhost-crypto) vhost_crypto="yes"
 953   ;;
 954   --disable-vhost-scsi) vhost_scsi="no"
 955   ;;
 956   --enable-vhost-scsi) vhost_scsi="yes"
 957   ;;
 958   --disable-vhost-vsock) vhost_vsock="no"
 959   ;;
 960   --enable-vhost-vsock) vhost_vsock="yes"
 961   ;;
 962   --disable-vhost-user-fs) vhost_user_fs="no"
 963   ;;
 964   --enable-vhost-user-fs) vhost_user_fs="yes"
 965   ;;
 966   --disable-opengl) opengl="no"
 967   ;;
 968   --enable-opengl) opengl="yes"
 969   ;;
 970   --disable-zlib-test)
 971   ;;
 972   --enable-guest-agent) guest_agent="yes"
 973   ;;
 974   --disable-guest-agent) guest_agent="no"
 975   ;;
 976   --with-vss-sdk) vss_win32_sdk=""
 977   ;;
 978   --with-vss-sdk=*) vss_win32_sdk="$optarg"
 979   ;;
 980   --without-vss-sdk) vss_win32_sdk="no"
 981   ;;
 982   --with-win-sdk) win_sdk=""
 983   ;;
 984   --with-win-sdk=*) win_sdk="$optarg"
 985   ;;
 986   --without-win-sdk) win_sdk="no"
 987   ;;
 988   --enable-tools) want_tools="yes"
 989   ;;
 990   --disable-tools) want_tools="no"
 991   ;;
 992   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
 993       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
 994   ;;
 995   --enable-vhdx|--disable-vhdx)
 996       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
 997   ;;
 998   --enable-uuid|--disable-uuid)
 999       echo "$0: $opt is obsolete, UUID support is always built" >&2
1000   ;;
1001   --tls-priority=*) tls_priority="$optarg"
1002   ;;
1003   --enable-rdma) rdma="yes"
1004   ;;
1005   --disable-rdma) rdma="no"
1006   ;;
1007   --enable-pvrdma) pvrdma="yes"
1008   ;;
1009   --disable-pvrdma) pvrdma="no"
1010   ;;
1011   --disable-vhost-user) vhost_user="no"
1012   ;;
1013   --enable-vhost-user) vhost_user="yes"
1014   ;;
1015   --disable-vhost-vdpa) vhost_vdpa="no"
1016   ;;
1017   --enable-vhost-vdpa) vhost_vdpa="yes"
1018   ;;
1019   --disable-vhost-kernel) vhost_kernel="no"
1020   ;;
1021   --enable-vhost-kernel) vhost_kernel="yes"
1022   ;;
1023   --disable-capstone) capstone="disabled"
1024   ;;
1025   --enable-capstone) capstone="enabled"
1026   ;;
1027   --enable-capstone=git) capstone="internal"
1028   ;;
1029   --enable-capstone=*) capstone="$optarg"
1030   ;;
1031   --with-git=*) git="$optarg"
1032   ;;
1033   --with-git-submodules=*)
1034       git_submodules_action="$optarg"
1035   ;;
1036   --enable-plugins) if test "$mingw32" = "yes"; then
1037                         error_exit "TCG plugins not currently supported on Windows platforms"
1038                     else
1039                         plugins="yes"
1040                     fi
1041   ;;
1042   --disable-plugins) plugins="no"
1043   ;;
1044   --enable-containers) use_containers="yes"
1045   ;;
1046   --disable-containers) use_containers="no"
1047   ;;
1048   --gdb=*) gdb_bin="$optarg"
1049   ;;
1050   --enable-keyring) secret_keyring="yes"
1051   ;;
1052   --disable-keyring) secret_keyring="no"
1053   ;;
1054   --enable-gio) gio=yes
1055   ;;
1056   --disable-gio) gio=no
1057   ;;
1058   --enable-slirp-smbd) slirp_smbd=yes
1059   ;;
1060   --disable-slirp-smbd) slirp_smbd=no
1061   ;;
1062   # backwards compatibility options
1063   --enable-trace-backend=*) meson_option_parse "--enable-trace-backends=$optarg" "$optarg"
1064   ;;
1065   --disable-blobs) meson_option_parse --disable-install-blobs ""
1066   ;;
1067   --enable-tcmalloc) meson_option_parse --enable-malloc=tcmalloc tcmalloc
1068   ;;
1069   --enable-jemalloc) meson_option_parse --enable-malloc=jemalloc jemalloc
1070   ;;
1071   # everything else has the same name in configure and meson
1072   --enable-* | --disable-*) meson_option_parse "$opt" "$optarg"
1073   ;;
1074   *)
1075       echo "ERROR: unknown option $opt"
1076       echo "Try '$0 --help' for more information"
1077       exit 1
1078   ;;
1079   esac
1080 done
1081
1082 # test for any invalid configuration combinations
1083 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
1084     error_exit "Can't enable plugins on non-TCG builds"
1085 fi
1086
1087 case $git_submodules_action in
1088     update|validate)
1089         if test ! -e "$source_path/.git"; then
1090             echo "ERROR: cannot $git_submodules_action git submodules without .git"
1091             exit 1
1092         fi
1093     ;;
1094     ignore)
1095         if ! test -f "$source_path/ui/keycodemapdb/README"
1096         then
1097             echo
1098             echo "ERROR: missing GIT submodules"
1099             echo
1100             if test -e "$source_path/.git"; then
1101                 echo "--with-git-submodules=ignore specified but submodules were not"
1102                 echo "checked out.  Please initialize and update submodules."
1103             else
1104                 echo "This is not a GIT checkout but module content appears to"
1105                 echo "be missing. Do not use 'git archive' or GitHub download links"
1106                 echo "to acquire QEMU source archives. Non-GIT builds are only"
1107                 echo "supported with source archives linked from:"
1108                 echo
1109                 echo "  https://www.qemu.org/download/#source"
1110                 echo
1111                 echo "Developers working with GIT can use scripts/archive-source.sh"
1112                 echo "if they need to create valid source archives."
1113             fi
1114             echo
1115             exit 1
1116         fi
1117     ;;
1118     *)
1119         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
1120         exit 1
1121     ;;
1122 esac
1123
1124 libdir="${libdir:-$prefix/lib}"
1125 libexecdir="${libexecdir:-$prefix/libexec}"
1126 includedir="${includedir:-$prefix/include}"
1127
1128 if test "$mingw32" = "yes" ; then
1129     bindir="${bindir:-$prefix}"
1130 else
1131     bindir="${bindir:-$prefix/bin}"
1132 fi
1133 mandir="${mandir:-$prefix/share/man}"
1134 datadir="${datadir:-$prefix/share}"
1135 docdir="${docdir:-$prefix/share/doc}"
1136 sysconfdir="${sysconfdir:-$prefix/etc}"
1137 local_statedir="${local_statedir:-$prefix/var}"
1138 firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1139 localedir="${localedir:-$datadir/locale}"
1140
1141 if eval test -z "\${cross_cc_$cpu}"; then
1142     eval "cross_cc_${cpu}=\$cc"
1143     cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1144 fi
1145
1146 default_target_list=""
1147 mak_wilds=""
1148
1149 if [ "$linux_user" != no ]; then
1150     if [ "$targetos" = linux ] && [ -d $source_path/linux-user/include/host/$cpu ]; then
1151         linux_user=yes
1152     elif [ "$linux_user" = yes ]; then
1153         error_exit "linux-user not supported on this architecture"
1154     fi
1155 fi
1156 if [ "$bsd_user" != no ]; then
1157     if [ "$bsd_user" = "" ]; then
1158         test $targetos = freebsd && bsd_user=yes
1159     fi
1160     if [ "$bsd_user" = yes ] && ! [ -d $source_path/bsd-user/$targetos ]; then
1161         error_exit "bsd-user not supported on this host OS"
1162     fi
1163 fi
1164 if [ "$softmmu" = "yes" ]; then
1165     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
1166 fi
1167 if [ "$linux_user" = "yes" ]; then
1168     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
1169 fi
1170 if [ "$bsd_user" = "yes" ]; then
1171     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
1172 fi
1173
1174 for config in $mak_wilds; do
1175     target="$(basename "$config" .mak)"
1176     if echo "$target_list_exclude" | grep -vq "$target"; then
1177         default_target_list="${default_target_list} $target"
1178     fi
1179 done
1180
1181 if test x"$show_help" = x"yes" ; then
1182 cat << EOF
1183
1184 Usage: configure [options]
1185 Options: [defaults in brackets after descriptions]
1186
1187 Standard options:
1188   --help                   print this message
1189   --prefix=PREFIX          install in PREFIX [$prefix]
1190   --interp-prefix=PREFIX   where to find shared libraries, etc.
1191                            use %M for cpu name [$interp_prefix]
1192   --target-list=LIST       set target list (default: build all)
1193 $(echo Available targets: $default_target_list | \
1194   fold -s -w 53 | sed -e 's/^/                           /')
1195   --target-list-exclude=LIST exclude a set of targets from the default target-list
1196
1197 Advanced options (experts only):
1198   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1199   --cc=CC                  use C compiler CC [$cc]
1200   --iasl=IASL              use ACPI compiler IASL [$iasl]
1201   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1202                            build time
1203   --cxx=CXX                use C++ compiler CXX [$cxx]
1204   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1205   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
1206   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
1207   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1208   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1209   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
1210   --make=MAKE              use specified make [$make]
1211   --python=PYTHON          use specified python [$python]
1212   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1213   --meson=MESON            use specified meson [$meson]
1214   --ninja=NINJA            use specified ninja [$ninja]
1215   --smbd=SMBD              use specified smbd [$smbd]
1216   --with-git=GIT           use specified git [$git]
1217   --with-git-submodules=update   update git submodules (default if .git dir exists)
1218   --with-git-submodules=validate fail if git submodules are not up to date
1219   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1220   --static                 enable static build [$static]
1221   --mandir=PATH            install man pages in PATH
1222   --datadir=PATH           install firmware in PATH/$qemu_suffix
1223   --localedir=PATH         install translation in PATH/$qemu_suffix
1224   --docdir=PATH            install documentation in PATH/$qemu_suffix
1225   --bindir=PATH            install binaries in PATH
1226   --libdir=PATH            install libraries in PATH
1227   --libexecdir=PATH        install helper binaries in PATH
1228   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1229   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1230   --firmwarepath=PATH      search PATH for firmware files
1231   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1232   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1233   --with-pkgversion=VERS   use specified string as sub-version of the package
1234   --without-default-features default all --enable-* options to "disabled"
1235   --without-default-devices  do not include any device that is not needed to
1236                            start the emulator (only use if you are including
1237                            desired devices in configs/devices/)
1238   --with-devices-ARCH=NAME override default configs/devices
1239   --enable-debug           enable common debug build options
1240   --enable-sanitizers      enable default sanitizers
1241   --enable-tsan            enable thread sanitizer
1242   --disable-werror         disable compilation abort on warning
1243   --disable-stack-protector disable compiler-provided stack protection
1244   --audio-drv-list=LIST    set audio drivers to try if -audiodev is not used
1245   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1246   --block-drv-rw-whitelist=L
1247                            set block driver read-write whitelist
1248                            (by default affects only QEMU, not tools like qemu-img)
1249   --block-drv-ro-whitelist=L
1250                            set block driver read-only whitelist
1251                            (by default affects only QEMU, not tools like qemu-img)
1252   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1253                            Default:trace-<pid>
1254   --cpu=CPU                Build for host CPU [$cpu]
1255   --with-coroutine=BACKEND coroutine backend. Supported options:
1256                            ucontext, sigaltstack, windows
1257   --enable-gcov            enable test coverage analysis with gcov
1258   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1259   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1260   --tls-priority           default TLS protocol/cipher priority string
1261   --enable-debug-stack-usage
1262                            track the maximum stack usage of stacks created by qemu_alloc_stack
1263   --enable-plugins
1264                            enable plugins via shared library loading
1265   --disable-containers     don't use containers for cross-building
1266   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1267 EOF
1268   meson_options_help
1269 cat << EOF
1270   system          all system emulation targets
1271   user            supported user emulation targets
1272   linux-user      all linux usermode emulation targets
1273   bsd-user        all BSD usermode emulation targets
1274   guest-agent     build the QEMU Guest Agent
1275   pie             Position Independent Executables
1276   modules         modules support (non-Windows)
1277   module-upgrades try to load modules from alternate paths for upgrades
1278   debug-tcg       TCG debugging (default is disabled)
1279   debug-info      debugging information
1280   lto             Enable Link-Time Optimization.
1281   safe-stack      SafeStack Stack Smash Protection. Depends on
1282                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1283   rdma            Enable RDMA-based migration
1284   pvrdma          Enable PVRDMA support
1285   vhost-net       vhost-net kernel acceleration support
1286   vhost-vsock     virtio sockets device support
1287   vhost-scsi      vhost-scsi kernel target support
1288   vhost-crypto    vhost-user-crypto backend support
1289   vhost-kernel    vhost kernel backend support
1290   vhost-user      vhost-user backend support
1291   vhost-vdpa      vhost-vdpa kernel backend support
1292   coroutine-pool  coroutine freelist (better performance)
1293   opengl          opengl support
1294   tools           build qemu-io, qemu-nbd and qemu-img tools
1295   gio             libgio support
1296   slirp-smbd      use smbd (at path --smbd=*) in slirp networking
1297
1298 NOTE: The object files are built at the place where configure is launched
1299 EOF
1300 exit 0
1301 fi
1302
1303 # Remove old dependency files to make sure that they get properly regenerated
1304 rm -f */config-devices.mak.d
1305
1306 if test -z "$python"
1307 then
1308     error_exit "Python not found. Use --python=/path/to/python"
1309 fi
1310 if ! has "$make"
1311 then
1312     error_exit "GNU make ($make) not found"
1313 fi
1314
1315 # Note that if the Python conditional here evaluates True we will exit
1316 # with status 1 which is a shell 'false' value.
1317 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1318   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1319       "Use --python=/path/to/python to specify a supported Python."
1320 fi
1321
1322 # Preserve python version since some functionality is dependent on it
1323 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)
1324
1325 # Suppress writing compiled files
1326 python="$python -B"
1327
1328 if test -z "$meson"; then
1329     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.59.3; then
1330         meson=meson
1331     elif test $git_submodules_action != 'ignore' ; then
1332         meson=git
1333     elif test -e "${source_path}/meson/meson.py" ; then
1334         meson=internal
1335     else
1336         if test "$explicit_python" = yes; then
1337             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1338         else
1339             error_exit "Meson not found.  Use --meson=/path/to/meson"
1340         fi
1341     fi
1342 else
1343     # Meson uses its own Python interpreter to invoke other Python scripts,
1344     # but the user wants to use the one they specified with --python.
1345     #
1346     # We do not want to override the distro Python interpreter (and sometimes
1347     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1348     # just require --meson=git|internal together with --python.
1349     if test "$explicit_python" = yes; then
1350         case "$meson" in
1351             git | internal) ;;
1352             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1353         esac
1354     fi
1355 fi
1356
1357 if test "$meson" = git; then
1358     git_submodules="${git_submodules} meson"
1359 fi
1360
1361 case "$meson" in
1362     git | internal)
1363         meson="$python ${source_path}/meson/meson.py"
1364         ;;
1365     *) meson=$(command -v "$meson") ;;
1366 esac
1367
1368 # Probe for ninja
1369
1370 if test -z "$ninja"; then
1371     for c in ninja ninja-build samu; do
1372         if has $c; then
1373             ninja=$(command -v "$c")
1374             break
1375         fi
1376     done
1377     if test -z "$ninja"; then
1378       error_exit "Cannot find Ninja"
1379     fi
1380 fi
1381
1382 # Check that the C compiler works. Doing this here before testing
1383 # the host CPU ensures that we had a valid CC to autodetect the
1384 # $cpu var (and we should bail right here if that's not the case).
1385 # It also allows the help message to be printed without a CC.
1386 write_c_skeleton;
1387 if compile_object ; then
1388   : C compiler works ok
1389 else
1390     error_exit "\"$cc\" either does not exist or does not work"
1391 fi
1392 if ! compile_prog ; then
1393     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1394 fi
1395
1396 # Consult white-list to determine whether to enable werror
1397 # by default.  Only enable by default for git builds
1398 if test -z "$werror" ; then
1399     if test "$git_submodules_action" != "ignore" && \
1400         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1401         werror="yes"
1402     else
1403         werror="no"
1404     fi
1405 fi
1406
1407 if test "$targetos" = "bogus"; then
1408     # Now that we know that we're not printing the help and that
1409     # the compiler works (so the results of the check_defines we used
1410     # to identify the OS are reliable), if we didn't recognize the
1411     # host OS we should stop now.
1412     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1413 fi
1414
1415 # Check whether the compiler matches our minimum requirements:
1416 cat > $TMPC << EOF
1417 #if defined(__clang_major__) && defined(__clang_minor__)
1418 # ifdef __apple_build_version__
1419 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1420 #   error You need at least XCode Clang v10.0 to compile QEMU
1421 #  endif
1422 # else
1423 #  if __clang_major__ < 6 || (__clang_major__ == 6 && __clang_minor__ < 0)
1424 #   error You need at least Clang v6.0 to compile QEMU
1425 #  endif
1426 # endif
1427 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1428 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1429 #  error You need at least GCC v7.4.0 to compile QEMU
1430 # endif
1431 #else
1432 # error You either need GCC or Clang to compiler QEMU
1433 #endif
1434 int main (void) { return 0; }
1435 EOF
1436 if ! compile_prog "" "" ; then
1437     error_exit "You need at least GCC v7.4 or Clang v6.0 (or XCode Clang v10.0)"
1438 fi
1439
1440 # Accumulate -Wfoo and -Wno-bar separately.
1441 # We will list all of the enable flags first, and the disable flags second.
1442 # Note that we do not add -Werror, because that would enable it for all
1443 # configure tests. If a configure test failed due to -Werror this would
1444 # just silently disable some features, so it's too error prone.
1445
1446 warn_flags=
1447 add_to warn_flags -Wold-style-declaration
1448 add_to warn_flags -Wold-style-definition
1449 add_to warn_flags -Wtype-limits
1450 add_to warn_flags -Wformat-security
1451 add_to warn_flags -Wformat-y2k
1452 add_to warn_flags -Winit-self
1453 add_to warn_flags -Wignored-qualifiers
1454 add_to warn_flags -Wempty-body
1455 add_to warn_flags -Wnested-externs
1456 add_to warn_flags -Wendif-labels
1457 add_to warn_flags -Wexpansion-to-defined
1458 add_to warn_flags -Wimplicit-fallthrough=2
1459
1460 nowarn_flags=
1461 add_to nowarn_flags -Wno-initializer-overrides
1462 add_to nowarn_flags -Wno-missing-include-dirs
1463 add_to nowarn_flags -Wno-shift-negative-value
1464 add_to nowarn_flags -Wno-string-plus-int
1465 add_to nowarn_flags -Wno-typedef-redefinition
1466 add_to nowarn_flags -Wno-tautological-type-limit-compare
1467 add_to nowarn_flags -Wno-psabi
1468
1469 gcc_flags="$warn_flags $nowarn_flags"
1470
1471 cc_has_warning_flag() {
1472     write_c_skeleton;
1473
1474     # Use the positive sense of the flag when testing for -Wno-wombat
1475     # support (gcc will happily accept the -Wno- form of unknown
1476     # warning options).
1477     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1478     compile_prog "-Werror $optflag" ""
1479 }
1480
1481 for flag in $gcc_flags; do
1482     if cc_has_warning_flag $flag ; then
1483         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1484     fi
1485 done
1486
1487 if test "$stack_protector" != "no"; then
1488   cat > $TMPC << EOF
1489 int main(int argc, char *argv[])
1490 {
1491     char arr[64], *p = arr, *c = argv[0];
1492     while (*c) {
1493         *p++ = *c++;
1494     }
1495     return 0;
1496 }
1497 EOF
1498   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1499   sp_on=0
1500   for flag in $gcc_flags; do
1501     # We need to check both a compile and a link, since some compiler
1502     # setups fail only on a .c->.o compile and some only at link time
1503     if compile_object "-Werror $flag" &&
1504        compile_prog "-Werror $flag" ""; then
1505       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1506       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1507       sp_on=1
1508       break
1509     fi
1510   done
1511   if test "$stack_protector" = yes; then
1512     if test $sp_on = 0; then
1513       error_exit "Stack protector not supported"
1514     fi
1515   fi
1516 fi
1517
1518 # Disable -Wmissing-braces on older compilers that warn even for
1519 # the "universal" C zero initializer {0}.
1520 cat > $TMPC << EOF
1521 struct {
1522   int a[2];
1523 } x = {0};
1524 EOF
1525 if compile_object "-Werror" "" ; then
1526   :
1527 else
1528   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
1529 fi
1530
1531 # Our module code doesn't support Windows
1532 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1533   error_exit "Modules are not available for Windows"
1534 fi
1535
1536 # module_upgrades is only reasonable if modules are enabled
1537 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
1538   error_exit "Can't enable module-upgrades as Modules are not enabled"
1539 fi
1540
1541 # Static linking is not possible with plugins, modules or PIE
1542 if test "$static" = "yes" ; then
1543   if test "$modules" = "yes" ; then
1544     error_exit "static and modules are mutually incompatible"
1545   fi
1546   if test "$plugins" = "yes"; then
1547     error_exit "static and plugins are mutually incompatible"
1548   else
1549     plugins="no"
1550   fi
1551 fi
1552 test "$plugins" = "" && plugins=yes
1553
1554 cat > $TMPC << EOF
1555
1556 #ifdef __linux__
1557 #  define THREAD __thread
1558 #else
1559 #  define THREAD
1560 #endif
1561 static THREAD int tls_var;
1562 int main(void) { return tls_var; }
1563 EOF
1564
1565 # Check we support -fno-pie and -no-pie first; we will need the former for
1566 # building ROMs, and both for everything if --disable-pie is passed.
1567 if compile_prog "-Werror -fno-pie" "-no-pie"; then
1568   CFLAGS_NOPIE="-fno-pie"
1569   LDFLAGS_NOPIE="-no-pie"
1570 fi
1571
1572 if test "$static" = "yes"; then
1573   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1574     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1575     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
1576     pie="yes"
1577   elif test "$pie" = "yes"; then
1578     error_exit "-static-pie not available due to missing toolchain support"
1579   else
1580     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
1581     pie="no"
1582   fi
1583 elif test "$pie" = "no"; then
1584   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
1585   CONFIGURE_LDFLAGS="$LDFLAGS_NOPIE $CONFIGURE_LDFLAGS"
1586 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1587   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1588   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1589   pie="yes"
1590 elif test "$pie" = "yes"; then
1591   error_exit "PIE not available due to missing toolchain support"
1592 else
1593   echo "Disabling PIE due to missing toolchain support"
1594   pie="no"
1595 fi
1596
1597 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
1598 # The combination is known as "full relro", because .got.plt is read-only too.
1599 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
1600   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
1601 fi
1602
1603 ##########################################
1604 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1605 # use i686 as default anyway, but for those that don't, an explicit
1606 # specification is necessary
1607
1608 if test "$cpu" = "i386"; then
1609   cat > $TMPC << EOF
1610 static int sfaa(int *ptr)
1611 {
1612   return __sync_fetch_and_and(ptr, 0);
1613 }
1614
1615 int main(void)
1616 {
1617   int val = 42;
1618   val = __sync_val_compare_and_swap(&val, 0, 1);
1619   sfaa(&val);
1620   return val;
1621 }
1622 EOF
1623   if ! compile_prog "" "" ; then
1624     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1625   fi
1626 fi
1627
1628 if test "$tcg" = "enabled"; then
1629     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1630     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1631 fi
1632
1633 if test -z "${target_list+xxx}" ; then
1634     default_targets=yes
1635     for target in $default_target_list; do
1636         target_list="$target_list $target"
1637     done
1638     target_list="${target_list# }"
1639 else
1640     default_targets=no
1641     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1642     for target in $target_list; do
1643         # Check that we recognised the target name; this allows a more
1644         # friendly error message than if we let it fall through.
1645         case " $default_target_list " in
1646             *" $target "*)
1647                 ;;
1648             *)
1649                 error_exit "Unknown target name '$target'"
1650                 ;;
1651         esac
1652     done
1653 fi
1654
1655 # see if system emulation was really requested
1656 case " $target_list " in
1657   *"-softmmu "*) softmmu=yes
1658   ;;
1659   *) softmmu=no
1660   ;;
1661 esac
1662
1663 feature_not_found() {
1664   feature=$1
1665   remedy=$2
1666
1667   error_exit "User requested feature $feature" \
1668       "configure was not able to find it." \
1669       "$remedy"
1670 }
1671
1672 # ---
1673 # big/little endian test
1674 cat > $TMPC << EOF
1675 #include <stdio.h>
1676 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
1677 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
1678 int main(int argc, char *argv[])
1679 {
1680     return printf("%s %s\n", (char *)big_endian, (char *)little_endian);
1681 }
1682 EOF
1683
1684 if compile_prog ; then
1685     if strings -a $TMPE | grep -q BiGeNdIaN ; then
1686         bigendian="yes"
1687     elif strings -a $TMPE | grep -q LiTtLeEnDiAn ; then
1688         bigendian="no"
1689     else
1690         echo big/little test failed
1691         exit 1
1692     fi
1693 else
1694     echo big/little test failed
1695     exit 1
1696 fi
1697
1698 ##########################################
1699 # system tools
1700 if test -z "$want_tools"; then
1701     if test "$softmmu" = "no"; then
1702         want_tools=no
1703     else
1704         want_tools=yes
1705     fi
1706 fi
1707
1708 #########################################
1709 # vhost interdependencies and host support
1710
1711 # vhost backends
1712 if test "$vhost_user" = "yes" && test "$linux" != "yes"; then
1713   error_exit "vhost-user is only available on Linux"
1714 fi
1715 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
1716 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
1717   error_exit "vhost-vdpa is only available on Linux"
1718 fi
1719 test "$vhost_kernel" = "" && vhost_kernel=$linux
1720 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
1721   error_exit "vhost-kernel is only available on Linux"
1722 fi
1723
1724 # vhost-kernel devices
1725 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
1726 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
1727   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
1728 fi
1729 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
1730 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
1731   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
1732 fi
1733
1734 # vhost-user backends
1735 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
1736 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
1737   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
1738 fi
1739 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
1740 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
1741   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
1742 fi
1743 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
1744 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
1745   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
1746 fi
1747 #vhost-vdpa backends
1748 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
1749 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
1750   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
1751 fi
1752
1753 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
1754 if test "$vhost_net" = ""; then
1755   test "$vhost_net_user" = "yes" && vhost_net=yes
1756   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
1757   test "$vhost_kernel" = "yes" && vhost_net=yes
1758 fi
1759
1760 ##########################################
1761 # pkg-config probe
1762
1763 if ! has "$pkg_config_exe"; then
1764   error_exit "pkg-config binary '$pkg_config_exe' not found"
1765 fi
1766
1767 ##########################################
1768 # xen probe
1769
1770 if test "$xen" != "disabled" ; then
1771   # Check whether Xen library path is specified via --extra-ldflags to avoid
1772   # overriding this setting with pkg-config output. If not, try pkg-config
1773   # to obtain all needed flags.
1774
1775   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
1776      $pkg_config --exists xencontrol ; then
1777     xen_ctrl_version="$(printf '%d%02d%02d' \
1778       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
1779     xen=enabled
1780     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
1781     xen_pc="$xen_pc xenevtchn xendevicemodel"
1782     if $pkg_config --exists xentoolcore; then
1783       xen_pc="$xen_pc xentoolcore"
1784     fi
1785     xen_cflags="$($pkg_config --cflags $xen_pc)"
1786     xen_libs="$($pkg_config --libs $xen_pc)"
1787   else
1788
1789     xen_libs="-lxenstore -lxenctrl"
1790     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
1791
1792     # First we test whether Xen headers and libraries are available.
1793     # If no, we are done and there is no Xen support.
1794     # If yes, more tests are run to detect the Xen version.
1795
1796     # Xen (any)
1797     cat > $TMPC <<EOF
1798 #include <xenctrl.h>
1799 int main(void) {
1800   return 0;
1801 }
1802 EOF
1803     if ! compile_prog "" "$xen_libs" ; then
1804       # Xen not found
1805       if test "$xen" = "enabled" ; then
1806         feature_not_found "xen" "Install xen devel"
1807       fi
1808       xen=disabled
1809
1810     # Xen unstable
1811     elif
1812         cat > $TMPC <<EOF &&
1813 #undef XC_WANT_COMPAT_DEVICEMODEL_API
1814 #define __XEN_TOOLS__
1815 #include <xendevicemodel.h>
1816 #include <xenforeignmemory.h>
1817 int main(void) {
1818   xendevicemodel_handle *xd;
1819   xenforeignmemory_handle *xfmem;
1820
1821   xd = xendevicemodel_open(0, 0);
1822   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
1823
1824   xfmem = xenforeignmemory_open(0, 0);
1825   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
1826
1827   return 0;
1828 }
1829 EOF
1830         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
1831       then
1832       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
1833       xen_ctrl_version=41100
1834       xen=enabled
1835     elif
1836         cat > $TMPC <<EOF &&
1837 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
1838 #include <xenforeignmemory.h>
1839 #include <xentoolcore.h>
1840 int main(void) {
1841   xenforeignmemory_handle *xfmem;
1842
1843   xfmem = xenforeignmemory_open(0, 0);
1844   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
1845   xentoolcore_restrict_all(0);
1846
1847   return 0;
1848 }
1849 EOF
1850         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
1851       then
1852       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
1853       xen_ctrl_version=41000
1854       xen=enabled
1855     elif
1856         cat > $TMPC <<EOF &&
1857 #undef XC_WANT_COMPAT_DEVICEMODEL_API
1858 #define __XEN_TOOLS__
1859 #include <xendevicemodel.h>
1860 int main(void) {
1861   xendevicemodel_handle *xd;
1862
1863   xd = xendevicemodel_open(0, 0);
1864   xendevicemodel_close(xd);
1865
1866   return 0;
1867 }
1868 EOF
1869         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
1870       then
1871       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
1872       xen_ctrl_version=40900
1873       xen=enabled
1874     elif
1875         cat > $TMPC <<EOF &&
1876 /*
1877  * If we have stable libs the we don't want the libxc compat
1878  * layers, regardless of what CFLAGS we may have been given.
1879  *
1880  * Also, check if xengnttab_grant_copy_segment_t is defined and
1881  * grant copy operation is implemented.
1882  */
1883 #undef XC_WANT_COMPAT_EVTCHN_API
1884 #undef XC_WANT_COMPAT_GNTTAB_API
1885 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
1886 #include <xenctrl.h>
1887 #include <xenstore.h>
1888 #include <xenevtchn.h>
1889 #include <xengnttab.h>
1890 #include <xenforeignmemory.h>
1891 #include <stdint.h>
1892 #include <xen/hvm/hvm_info_table.h>
1893 #if !defined(HVM_MAX_VCPUS)
1894 # error HVM_MAX_VCPUS not defined
1895 #endif
1896 int main(void) {
1897   xc_interface *xc = NULL;
1898   xenforeignmemory_handle *xfmem;
1899   xenevtchn_handle *xe;
1900   xengnttab_handle *xg;
1901   xengnttab_grant_copy_segment_t* seg = NULL;
1902
1903   xs_daemon_open();
1904
1905   xc = xc_interface_open(0, 0, 0);
1906   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
1907   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
1908   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
1909   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
1910
1911   xfmem = xenforeignmemory_open(0, 0);
1912   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
1913
1914   xe = xenevtchn_open(0, 0);
1915   xenevtchn_fd(xe);
1916
1917   xg = xengnttab_open(0, 0);
1918   xengnttab_grant_copy(xg, 0, seg);
1919
1920   return 0;
1921 }
1922 EOF
1923         compile_prog "" "$xen_libs $xen_stable_libs"
1924       then
1925       xen_ctrl_version=40800
1926       xen=enabled
1927     elif
1928         cat > $TMPC <<EOF &&
1929 /*
1930  * If we have stable libs the we don't want the libxc compat
1931  * layers, regardless of what CFLAGS we may have been given.
1932  */
1933 #undef XC_WANT_COMPAT_EVTCHN_API
1934 #undef XC_WANT_COMPAT_GNTTAB_API
1935 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
1936 #include <xenctrl.h>
1937 #include <xenstore.h>
1938 #include <xenevtchn.h>
1939 #include <xengnttab.h>
1940 #include <xenforeignmemory.h>
1941 #include <stdint.h>
1942 #include <xen/hvm/hvm_info_table.h>
1943 #if !defined(HVM_MAX_VCPUS)
1944 # error HVM_MAX_VCPUS not defined
1945 #endif
1946 int main(void) {
1947   xc_interface *xc = NULL;
1948   xenforeignmemory_handle *xfmem;
1949   xenevtchn_handle *xe;
1950   xengnttab_handle *xg;
1951
1952   xs_daemon_open();
1953
1954   xc = xc_interface_open(0, 0, 0);
1955   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
1956   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
1957   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
1958   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
1959
1960   xfmem = xenforeignmemory_open(0, 0);
1961   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
1962
1963   xe = xenevtchn_open(0, 0);
1964   xenevtchn_fd(xe);
1965
1966   xg = xengnttab_open(0, 0);
1967   xengnttab_map_grant_ref(xg, 0, 0, 0);
1968
1969   return 0;
1970 }
1971 EOF
1972         compile_prog "" "$xen_libs $xen_stable_libs"
1973       then
1974       xen_ctrl_version=40701
1975       xen=enabled
1976
1977     # Xen 4.6
1978     elif
1979         cat > $TMPC <<EOF &&
1980 #include <xenctrl.h>
1981 #include <xenstore.h>
1982 #include <stdint.h>
1983 #include <xen/hvm/hvm_info_table.h>
1984 #if !defined(HVM_MAX_VCPUS)
1985 # error HVM_MAX_VCPUS not defined
1986 #endif
1987 int main(void) {
1988   xc_interface *xc;
1989   xs_daemon_open();
1990   xc = xc_interface_open(0, 0, 0);
1991   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
1992   xc_gnttab_open(NULL, 0);
1993   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
1994   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
1995   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
1996   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
1997   return 0;
1998 }
1999 EOF
2000         compile_prog "" "$xen_libs"
2001       then
2002       xen_ctrl_version=40600
2003       xen=enabled
2004
2005     # Xen 4.5
2006     elif
2007         cat > $TMPC <<EOF &&
2008 #include <xenctrl.h>
2009 #include <xenstore.h>
2010 #include <stdint.h>
2011 #include <xen/hvm/hvm_info_table.h>
2012 #if !defined(HVM_MAX_VCPUS)
2013 # error HVM_MAX_VCPUS not defined
2014 #endif
2015 int main(void) {
2016   xc_interface *xc;
2017   xs_daemon_open();
2018   xc = xc_interface_open(0, 0, 0);
2019   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2020   xc_gnttab_open(NULL, 0);
2021   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2022   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2023   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2024   return 0;
2025 }
2026 EOF
2027         compile_prog "" "$xen_libs"
2028       then
2029       xen_ctrl_version=40500
2030       xen=enabled
2031
2032     elif
2033         cat > $TMPC <<EOF &&
2034 #include <xenctrl.h>
2035 #include <xenstore.h>
2036 #include <stdint.h>
2037 #include <xen/hvm/hvm_info_table.h>
2038 #if !defined(HVM_MAX_VCPUS)
2039 # error HVM_MAX_VCPUS not defined
2040 #endif
2041 int main(void) {
2042   xc_interface *xc;
2043   xs_daemon_open();
2044   xc = xc_interface_open(0, 0, 0);
2045   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2046   xc_gnttab_open(NULL, 0);
2047   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2048   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2049   return 0;
2050 }
2051 EOF
2052         compile_prog "" "$xen_libs"
2053       then
2054       xen_ctrl_version=40200
2055       xen=enabled
2056
2057     else
2058       if test "$xen" = "enabled" ; then
2059         feature_not_found "xen (unsupported version)" \
2060                           "Install a supported xen (xen 4.2 or newer)"
2061       fi
2062       xen=disabled
2063     fi
2064
2065     if test "$xen" = enabled; then
2066       if test $xen_ctrl_version -ge 40701  ; then
2067         xen_libs="$xen_libs $xen_stable_libs "
2068       fi
2069     fi
2070   fi
2071 fi
2072
2073 ##########################################
2074 # RDMA needs OpenFabrics libraries
2075 if test "$rdma" != "no" ; then
2076   cat > $TMPC <<EOF
2077 #include <rdma/rdma_cma.h>
2078 int main(void) { return 0; }
2079 EOF
2080   rdma_libs="-lrdmacm -libverbs -libumad"
2081   if compile_prog "" "$rdma_libs" ; then
2082     rdma="yes"
2083   else
2084     if test "$rdma" = "yes" ; then
2085         error_exit \
2086             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
2087             " Your options:" \
2088             "  (1) Fast: Install infiniband packages (devel) from your distro." \
2089             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
2090             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
2091     fi
2092     rdma="no"
2093   fi
2094 fi
2095
2096 ##########################################
2097 # PVRDMA detection
2098
2099 cat > $TMPC <<EOF &&
2100 #include <sys/mman.h>
2101
2102 int
2103 main(void)
2104 {
2105     char buf = 0;
2106     void *addr = &buf;
2107     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
2108
2109     return 0;
2110 }
2111 EOF
2112
2113 if test "$rdma" = "yes" ; then
2114     case "$pvrdma" in
2115     "")
2116         if compile_prog "" ""; then
2117             pvrdma="yes"
2118         else
2119             pvrdma="no"
2120         fi
2121         ;;
2122     "yes")
2123         if ! compile_prog "" ""; then
2124             error_exit "PVRDMA is not supported since mremap is not implemented"
2125         fi
2126         pvrdma="yes"
2127         ;;
2128     "no")
2129         pvrdma="no"
2130         ;;
2131     esac
2132 else
2133     if test "$pvrdma" = "yes" ; then
2134         error_exit "PVRDMA requires rdma suppport"
2135     fi
2136     pvrdma="no"
2137 fi
2138
2139 # Let's see if enhanced reg_mr is supported
2140 if test "$pvrdma" = "yes" ; then
2141
2142 cat > $TMPC <<EOF &&
2143 #include <infiniband/verbs.h>
2144
2145 int
2146 main(void)
2147 {
2148     struct ibv_mr *mr;
2149     struct ibv_pd *pd = NULL;
2150     size_t length = 10;
2151     uint64_t iova = 0;
2152     int access = 0;
2153     void *addr = NULL;
2154
2155     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
2156
2157     ibv_dereg_mr(mr);
2158
2159     return 0;
2160 }
2161 EOF
2162     if ! compile_prog "" "-libverbs"; then
2163         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
2164     fi
2165 fi
2166
2167 ##########################################
2168 # glib support probe
2169
2170 glib_req_ver=2.56
2171 glib_modules=gthread-2.0
2172 if test "$modules" = yes; then
2173     glib_modules="$glib_modules gmodule-export-2.0"
2174 elif test "$plugins" = "yes"; then
2175     glib_modules="$glib_modules gmodule-no-export-2.0"
2176 fi
2177
2178 for i in $glib_modules; do
2179     if $pkg_config --atleast-version=$glib_req_ver $i; then
2180         glib_cflags=$($pkg_config --cflags $i)
2181         glib_libs=$($pkg_config --libs $i)
2182     else
2183         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
2184     fi
2185 done
2186
2187 # This workaround is required due to a bug in pkg-config file for glib as it
2188 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
2189
2190 if test "$static" = yes && test "$mingw32" = yes; then
2191     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
2192 fi
2193
2194 if ! test "$gio" = "no"; then
2195     pass=no
2196     if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
2197         gio_cflags=$($pkg_config --cflags gio-2.0)
2198         gio_libs=$($pkg_config --libs gio-2.0)
2199         gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
2200         if ! has "$gdbus_codegen"; then
2201             gdbus_codegen=
2202         fi
2203         # Check that the libraries actually work -- Ubuntu 18.04 ships
2204         # with pkg-config --static --libs data for gio-2.0 that is missing
2205         # -lblkid and will give a link error.
2206         cat > $TMPC <<EOF
2207 #include <gio/gio.h>
2208 int main(void)
2209 {
2210     g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
2211     return 0;
2212 }
2213 EOF
2214         if compile_prog "$gio_cflags" "$gio_libs" ; then
2215             pass=yes
2216         else
2217             pass=no
2218         fi
2219
2220         if test "$pass" = "yes" &&
2221             $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
2222             gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
2223             gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
2224         fi
2225     fi
2226
2227     if test "$pass" = "no"; then
2228         if test "$gio" = "yes"; then
2229             feature_not_found "gio" "Install libgio >= 2.0"
2230         else
2231             gio=no
2232         fi
2233     else
2234         gio=yes
2235     fi
2236 fi
2237
2238 # Sanity check that the current size_t matches the
2239 # size that glib thinks it should be. This catches
2240 # problems on multi-arch where people try to build
2241 # 32-bit QEMU while pointing at 64-bit glib headers
2242 cat > $TMPC <<EOF
2243 #include <glib.h>
2244 #include <unistd.h>
2245
2246 #define QEMU_BUILD_BUG_ON(x) \
2247   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
2248
2249 int main(void) {
2250    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
2251    return 0;
2252 }
2253 EOF
2254
2255 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
2256     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
2257                "You probably need to set PKG_CONFIG_LIBDIR"\
2258                "to point to the right pkg-config files for your"\
2259                "build target"
2260 fi
2261
2262 # Silence clang warnings triggered by glib < 2.57.2
2263 cat > $TMPC << EOF
2264 #include <glib.h>
2265 typedef struct Foo {
2266     int i;
2267 } Foo;
2268 static void foo_free(Foo *f)
2269 {
2270     g_free(f);
2271 }
2272 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
2273 int main(void) { return 0; }
2274 EOF
2275 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
2276     if cc_has_warning_flag "-Wno-unused-function"; then
2277         glib_cflags="$glib_cflags -Wno-unused-function"
2278         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
2279     fi
2280 fi
2281
2282 ##########################################
2283 # SHA command probe for modules
2284 if test "$modules" = yes; then
2285     shacmd_probe="sha1sum sha1 shasum"
2286     for c in $shacmd_probe; do
2287         if has $c; then
2288             shacmd="$c"
2289             break
2290         fi
2291     done
2292     if test "$shacmd" = ""; then
2293         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
2294     fi
2295 fi
2296
2297 ##########################################
2298 # fdt probe
2299
2300 case "$fdt" in
2301   auto | enabled | internal)
2302     # Simpler to always update submodule, even if not needed.
2303     git_submodules="${git_submodules} dtc"
2304     ;;
2305 esac
2306
2307 ##########################################
2308 # opengl probe (for sdl2, gtk)
2309
2310 if test "$opengl" != "no" ; then
2311   epoxy=no
2312   if $pkg_config epoxy; then
2313     cat > $TMPC << EOF
2314 #include <epoxy/egl.h>
2315 int main(void) { return 0; }
2316 EOF
2317     if compile_prog "" "" ; then
2318       epoxy=yes
2319     fi
2320   fi
2321
2322   if test "$epoxy" = "yes" ; then
2323     opengl_cflags="$($pkg_config --cflags epoxy)"
2324     opengl_libs="$($pkg_config --libs epoxy)"
2325     opengl=yes
2326   else
2327     if test "$opengl" = "yes" ; then
2328       feature_not_found "opengl" "Please install epoxy with EGL"
2329     fi
2330     opengl_cflags=""
2331     opengl_libs=""
2332     opengl=no
2333   fi
2334 fi
2335
2336 # check for usbfs
2337 have_usbfs=no
2338 if test "$linux_user" = "yes"; then
2339   cat > $TMPC << EOF
2340 #include <linux/usbdevice_fs.h>
2341
2342 #ifndef USBDEVFS_GET_CAPABILITIES
2343 #error "USBDEVFS_GET_CAPABILITIES undefined"
2344 #endif
2345
2346 #ifndef USBDEVFS_DISCONNECT_CLAIM
2347 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
2348 #endif
2349
2350 int main(void)
2351 {
2352     return 0;
2353 }
2354 EOF
2355   if compile_prog "" ""; then
2356     have_usbfs=yes
2357   fi
2358 fi
2359
2360 ##########################################
2361 # check if we have VSS SDK headers for win
2362
2363 guest_agent_with_vss="no"
2364 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
2365         test "$vss_win32_sdk" != "no" ; then
2366   case "$vss_win32_sdk" in
2367     "")   vss_win32_include="-isystem $source_path" ;;
2368     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
2369           # handle path with spaces. So we symlink the headers into ".sdk/vss".
2370           vss_win32_include="-isystem $source_path/.sdk/vss"
2371           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
2372           ;;
2373     *)    vss_win32_include="-isystem $vss_win32_sdk"
2374   esac
2375   cat > $TMPC << EOF
2376 #define __MIDL_user_allocate_free_DEFINED__
2377 #include <inc/win2003/vss.h>
2378 int main(void) { return VSS_CTX_BACKUP; }
2379 EOF
2380   if compile_prog "$vss_win32_include" "" ; then
2381     guest_agent_with_vss="yes"
2382     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
2383   else
2384     if test "$vss_win32_sdk" != "" ; then
2385       echo "ERROR: Please download and install Microsoft VSS SDK:"
2386       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
2387       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
2388       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
2389       echo "ERROR: The headers are extracted in the directory \`inc'."
2390       feature_not_found "VSS support"
2391     fi
2392   fi
2393 fi
2394
2395 ##########################################
2396 # lookup Windows platform SDK (if not specified)
2397 # The SDK is needed only to build .tlb (type library) file of guest agent
2398 # VSS provider from the source. It is usually unnecessary because the
2399 # pre-compiled .tlb file is included.
2400
2401 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
2402         test "$guest_agent_with_vss" = "yes" ; then
2403   if test -z "$win_sdk"; then
2404     programfiles="$PROGRAMFILES"
2405     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
2406     if test -n "$programfiles"; then
2407       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
2408     else
2409       feature_not_found "Windows SDK"
2410     fi
2411   elif test "$win_sdk" = "no"; then
2412     win_sdk=""
2413   fi
2414 fi
2415
2416 ##########################################
2417 # check if mingw environment provides a recent ntddscsi.h
2418 guest_agent_ntddscsi="no"
2419 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
2420   cat > $TMPC << EOF
2421 #include <windows.h>
2422 #include <ntddscsi.h>
2423 int main(void) {
2424 #if !defined(IOCTL_SCSI_GET_ADDRESS)
2425 #error Missing required ioctl definitions
2426 #endif
2427   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
2428   return addr.Lun;
2429 }
2430 EOF
2431   if compile_prog "" "" ; then
2432     guest_agent_ntddscsi=yes
2433   fi
2434 fi
2435
2436 ##########################################
2437 # capstone
2438
2439 case "$capstone" in
2440   auto | enabled | internal)
2441     # Simpler to always update submodule, even if not needed.
2442     git_submodules="${git_submodules} capstone"
2443     ;;
2444 esac
2445
2446 ##########################################
2447 # check and set a backend for coroutine
2448
2449 # We prefer ucontext, but it's not always possible. The fallback
2450 # is sigcontext. On Windows the only valid backend is the Windows
2451 # specific one.
2452
2453 ucontext_works=no
2454 if test "$darwin" != "yes"; then
2455   cat > $TMPC << EOF
2456 #include <ucontext.h>
2457 #ifdef __stub_makecontext
2458 #error Ignoring glibc stub makecontext which will always fail
2459 #endif
2460 int main(void) { makecontext(0, 0, 0); return 0; }
2461 EOF
2462   if compile_prog "" "" ; then
2463     ucontext_works=yes
2464   fi
2465 fi
2466
2467 if test "$coroutine" = ""; then
2468   if test "$mingw32" = "yes"; then
2469     coroutine=win32
2470   elif test "$ucontext_works" = "yes"; then
2471     coroutine=ucontext
2472   else
2473     coroutine=sigaltstack
2474   fi
2475 else
2476   case $coroutine in
2477   windows)
2478     if test "$mingw32" != "yes"; then
2479       error_exit "'windows' coroutine backend only valid for Windows"
2480     fi
2481     # Unfortunately the user visible backend name doesn't match the
2482     # coroutine-*.c filename for this case, so we have to adjust it here.
2483     coroutine=win32
2484     ;;
2485   ucontext)
2486     if test "$ucontext_works" != "yes"; then
2487       feature_not_found "ucontext"
2488     fi
2489     ;;
2490   sigaltstack)
2491     if test "$mingw32" = "yes"; then
2492       error_exit "only the 'windows' coroutine backend is valid for Windows"
2493     fi
2494     ;;
2495   *)
2496     error_exit "unknown coroutine backend $coroutine"
2497     ;;
2498   esac
2499 fi
2500
2501 if test "$coroutine_pool" = ""; then
2502   coroutine_pool=yes
2503 fi
2504
2505 if test "$debug_stack_usage" = "yes"; then
2506   if test "$coroutine_pool" = "yes"; then
2507     echo "WARN: disabling coroutine pool for stack usage debugging"
2508     coroutine_pool=no
2509   fi
2510 fi
2511
2512 ##################################################
2513 # SafeStack
2514
2515
2516 if test "$safe_stack" = "yes"; then
2517 cat > $TMPC << EOF
2518 int main(int argc, char *argv[])
2519 {
2520 #if ! __has_feature(safe_stack)
2521 #error SafeStack Disabled
2522 #endif
2523     return 0;
2524 }
2525 EOF
2526   flag="-fsanitize=safe-stack"
2527   # Check that safe-stack is supported and enabled.
2528   if compile_prog "-Werror $flag" "$flag"; then
2529     # Flag needed both at compilation and at linking
2530     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2531     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2532   else
2533     error_exit "SafeStack not supported by your compiler"
2534   fi
2535   if test "$coroutine" != "ucontext"; then
2536     error_exit "SafeStack is only supported by the coroutine backend ucontext"
2537   fi
2538 else
2539 cat > $TMPC << EOF
2540 int main(int argc, char *argv[])
2541 {
2542 #if defined(__has_feature)
2543 #if __has_feature(safe_stack)
2544 #error SafeStack Enabled
2545 #endif
2546 #endif
2547     return 0;
2548 }
2549 EOF
2550 if test "$safe_stack" = "no"; then
2551   # Make sure that safe-stack is disabled
2552   if ! compile_prog "-Werror" ""; then
2553     # SafeStack was already enabled, try to explicitly remove the feature
2554     flag="-fno-sanitize=safe-stack"
2555     if ! compile_prog "-Werror $flag" "$flag"; then
2556       error_exit "Configure cannot disable SafeStack"
2557     fi
2558     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2559     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2560   fi
2561 else # "$safe_stack" = ""
2562   # Set safe_stack to yes or no based on pre-existing flags
2563   if compile_prog "-Werror" ""; then
2564     safe_stack="no"
2565   else
2566     safe_stack="yes"
2567     if test "$coroutine" != "ucontext"; then
2568       error_exit "SafeStack is only supported by the coroutine backend ucontext"
2569     fi
2570   fi
2571 fi
2572 fi
2573
2574 ########################################
2575 # check if __[u]int128_t is usable.
2576
2577 int128=no
2578 cat > $TMPC << EOF
2579 __int128_t a;
2580 __uint128_t b;
2581 int main (void) {
2582   a = a + b;
2583   b = a * b;
2584   a = a * a;
2585   return 0;
2586 }
2587 EOF
2588 if compile_prog "" "" ; then
2589     int128=yes
2590 fi
2591
2592 #########################################
2593 # See if 128-bit atomic operations are supported.
2594
2595 atomic128=no
2596 if test "$int128" = "yes"; then
2597   cat > $TMPC << EOF
2598 int main(void)
2599 {
2600   unsigned __int128 x = 0, y = 0;
2601   y = __atomic_load(&x, 0);
2602   __atomic_store(&x, y, 0);
2603   __atomic_compare_exchange(&x, &y, x, 0, 0, 0);
2604   return 0;
2605 }
2606 EOF
2607   if compile_prog "" "" ; then
2608     atomic128=yes
2609   fi
2610 fi
2611
2612 cmpxchg128=no
2613 if test "$int128" = yes && test "$atomic128" = no; then
2614   cat > $TMPC << EOF
2615 int main(void)
2616 {
2617   unsigned __int128 x = 0, y = 0;
2618   __sync_val_compare_and_swap_16(&x, y, x);
2619   return 0;
2620 }
2621 EOF
2622   if compile_prog "" "" ; then
2623     cmpxchg128=yes
2624   fi
2625 fi
2626
2627 ########################################
2628 # check if ccache is interfering with
2629 # semantic analysis of macros
2630
2631 unset CCACHE_CPP2
2632 ccache_cpp2=no
2633 cat > $TMPC << EOF
2634 static const int Z = 1;
2635 #define fn() ({ Z; })
2636 #define TAUT(X) ((X) == Z)
2637 #define PAREN(X, Y) (X == Y)
2638 #define ID(X) (X)
2639 int main(int argc, char *argv[])
2640 {
2641     int x = 0, y = 0;
2642     x = ID(x);
2643     x = fn();
2644     fn();
2645     if (PAREN(x, y)) return 0;
2646     if (TAUT(Z)) return 0;
2647     return 0;
2648 }
2649 EOF
2650
2651 if ! compile_object "-Werror"; then
2652     ccache_cpp2=yes
2653 fi
2654
2655 #################################################
2656 # clang does not support glibc + FORTIFY_SOURCE.
2657
2658 if test "$fortify_source" != "no"; then
2659   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
2660     fortify_source="no";
2661   elif test -n "$cxx" && has $cxx &&
2662        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
2663     fortify_source="no";
2664   else
2665     fortify_source="yes"
2666   fi
2667 fi
2668
2669 ##########################################
2670 # checks for sanitizers
2671
2672 have_asan=no
2673 have_ubsan=no
2674 have_asan_iface_h=no
2675 have_asan_iface_fiber=no
2676
2677 if test "$sanitizers" = "yes" ; then
2678   write_c_skeleton
2679   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
2680       have_asan=yes
2681   fi
2682
2683   # we could use a simple skeleton for flags checks, but this also
2684   # detect the static linking issue of ubsan, see also:
2685   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
2686   cat > $TMPC << EOF
2687 #include <stdlib.h>
2688 int main(void) {
2689     void *tmp = malloc(10);
2690     if (tmp != NULL) {
2691         return *(int *)(tmp + 2);
2692     }
2693     return 1;
2694 }
2695 EOF
2696   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
2697       have_ubsan=yes
2698   fi
2699
2700   if check_include "sanitizer/asan_interface.h" ; then
2701       have_asan_iface_h=yes
2702   fi
2703
2704   cat > $TMPC << EOF
2705 #include <sanitizer/asan_interface.h>
2706 int main(void) {
2707   __sanitizer_start_switch_fiber(0, 0, 0);
2708   return 0;
2709 }
2710 EOF
2711   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
2712       have_asan_iface_fiber=yes
2713   fi
2714 fi
2715
2716 # Thread sanitizer is, for now, much noisier than the other sanitizers;
2717 # keep it separate until that is not the case.
2718 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
2719   error_exit "TSAN is not supported with other sanitiziers."
2720 fi
2721 have_tsan=no
2722 have_tsan_iface_fiber=no
2723 if test "$tsan" = "yes" ; then
2724   write_c_skeleton
2725   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
2726       have_tsan=yes
2727   fi
2728   cat > $TMPC << EOF
2729 #include <sanitizer/tsan_interface.h>
2730 int main(void) {
2731   __tsan_create_fiber(0);
2732   return 0;
2733 }
2734 EOF
2735   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
2736       have_tsan_iface_fiber=yes
2737   fi
2738 fi
2739
2740 ##########################################
2741 # check for slirp
2742
2743 case "$slirp" in
2744   auto | enabled | internal)
2745     # Simpler to always update submodule, even if not needed.
2746     git_submodules="${git_submodules} slirp"
2747     ;;
2748 esac
2749
2750 # Check for slirp smbd dupport
2751 : ${smbd=${SMBD-/usr/sbin/smbd}}
2752 if test "$slirp_smbd" != "no" ; then
2753   if test "$mingw32" = "yes" ; then
2754     if test "$slirp_smbd" = "yes" ; then
2755       error_exit "Host smbd not supported on this platform."
2756     fi
2757     slirp_smbd=no
2758   else
2759     slirp_smbd=yes
2760   fi
2761 fi
2762
2763 ##########################################
2764 # check for usable __NR_keyctl syscall
2765
2766 if test "$linux" = "yes" ; then
2767
2768     have_keyring=no
2769     cat > $TMPC << EOF
2770 #include <errno.h>
2771 #include <asm/unistd.h>
2772 #include <linux/keyctl.h>
2773 #include <unistd.h>
2774 int main(void) {
2775     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
2776 }
2777 EOF
2778     if compile_prog "" "" ; then
2779         have_keyring=yes
2780     fi
2781 fi
2782 if test "$secret_keyring" != "no"
2783 then
2784     if test "$have_keyring" = "yes"
2785     then
2786         secret_keyring=yes
2787     else
2788         if test "$secret_keyring" = "yes"
2789         then
2790             error_exit "syscall __NR_keyctl requested, \
2791 but not implemented on your system"
2792         else
2793             secret_keyring=no
2794         fi
2795     fi
2796 fi
2797
2798 ##########################################
2799 # End of CC checks
2800 # After here, no more $cc or $ld runs
2801
2802 write_c_skeleton
2803
2804 if test "$gcov" = "yes" ; then
2805   :
2806 elif test "$fortify_source" = "yes" ; then
2807   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2808   debug=no
2809 fi
2810
2811 case "$ARCH" in
2812 alpha)
2813   # Ensure there's only a single GP
2814   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
2815 ;;
2816 esac
2817
2818 if test "$have_asan" = "yes"; then
2819   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2820   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2821   if test "$have_asan_iface_h" = "no" ; then
2822       echo "ASAN build enabled, but ASAN header missing." \
2823            "Without code annotation, the report may be inferior."
2824   elif test "$have_asan_iface_fiber" = "no" ; then
2825       echo "ASAN build enabled, but ASAN header is too old." \
2826            "Without code annotation, the report may be inferior."
2827   fi
2828 fi
2829 if test "$have_tsan" = "yes" ; then
2830   if test "$have_tsan_iface_fiber" = "yes" ; then
2831     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2832     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2833   else
2834     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2835   fi
2836 elif test "$tsan" = "yes" ; then
2837   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2838 fi
2839 if test "$have_ubsan" = "yes"; then
2840   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2841   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2842 fi
2843
2844 ##########################################
2845
2846 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
2847 if test "$solaris" = "no" && test "$tsan" = "no"; then
2848     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
2849         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
2850     fi
2851 fi
2852
2853 # Use ASLR, no-SEH and DEP if available
2854 if test "$mingw32" = "yes" ; then
2855     flags="--no-seh --nxcompat"
2856
2857     # Disable ASLR for debug builds to allow debugging with gdb
2858     if test "$debug" = "no" ; then
2859         flags="--dynamicbase $flags"
2860     fi
2861
2862     for flag in $flags; do
2863         if ld_has $flag ; then
2864             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
2865         fi
2866     done
2867 fi
2868
2869 # Probe for guest agent support/options
2870
2871 if [ "$guest_agent" != "no" ]; then
2872   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
2873       guest_agent=no
2874   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
2875       guest_agent=yes
2876   elif [ "$guest_agent" != yes ]; then
2877       guest_agent=no
2878   else
2879       error_exit "Guest agent is not supported on this platform"
2880   fi
2881 fi
2882
2883 # Guest agent Windows MSI package
2884
2885 if test "$QEMU_GA_MANUFACTURER" = ""; then
2886   QEMU_GA_MANUFACTURER=QEMU
2887 fi
2888 if test "$QEMU_GA_DISTRO" = ""; then
2889   QEMU_GA_DISTRO=Linux
2890 fi
2891 if test "$QEMU_GA_VERSION" = ""; then
2892     QEMU_GA_VERSION=$(cat $source_path/VERSION)
2893 fi
2894
2895 QEMU_GA_MSI_MINGW_DLL_PATH="$($pkg_config --variable=prefix glib-2.0)/bin"
2896
2897 # Mac OS X ships with a broken assembler
2898 roms=
2899 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
2900         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2901         test "$targetos" != "haiku" && test "$softmmu" = yes ; then
2902     # Different host OS linkers have different ideas about the name of the ELF
2903     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
2904     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
2905     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
2906         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
2907             ld_i386_emulation="$emu"
2908             roms="optionrom"
2909             break
2910         fi
2911     done
2912 fi
2913
2914 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
2915 # or -march=z10 (which is the lowest architecture level that Clang supports)
2916 if test "$cpu" = "s390x" ; then
2917   write_c_skeleton
2918   compile_prog "-march=z900" ""
2919   has_z900=$?
2920   if [ $has_z900 = 0 ] || compile_object "-march=z10 -msoft-float -Werror"; then
2921     if [ $has_z900 != 0 ]; then
2922       echo "WARNING: Your compiler does not support the z900!"
2923       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2924     fi
2925     roms="$roms s390-ccw"
2926     # SLOF is required for building the s390-ccw firmware on s390x,
2927     # since it is using the libnet code from SLOF for network booting.
2928     git_submodules="${git_submodules} roms/SLOF"
2929   fi
2930 fi
2931
2932 # Check that the C++ compiler exists and works with the C compiler.
2933 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
2934 if has $cxx; then
2935     cat > $TMPC <<EOF
2936 int c_function(void);
2937 int main(void) { return c_function(); }
2938 EOF
2939
2940     compile_object
2941
2942     cat > $TMPCXX <<EOF
2943 extern "C" {
2944    int c_function(void);
2945 }
2946 int c_function(void) { return 42; }
2947 EOF
2948
2949     update_cxxflags
2950
2951     if do_cxx $CXXFLAGS $EXTRA_CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
2952         # C++ compiler $cxx works ok with C compiler $cc
2953         :
2954     else
2955         echo "C++ compiler $cxx does not work with C compiler $cc"
2956         echo "Disabling C++ specific optional code"
2957         cxx=
2958     fi
2959 else
2960     echo "No C++ compiler available; disabling C++ specific optional code"
2961     cxx=
2962 fi
2963
2964 if !(GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2965     exit 1
2966 fi
2967
2968 config_host_mak="config-host.mak"
2969
2970 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2971 echo >> $config_host_mak
2972
2973 echo all: >> $config_host_mak
2974 echo "GIT=$git" >> $config_host_mak
2975 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2976 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2977
2978 if test "$debug_tcg" = "yes" ; then
2979   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2980 fi
2981 if test "$mingw32" = "yes" ; then
2982   echo "CONFIG_WIN32=y" >> $config_host_mak
2983   if test "$guest_agent_with_vss" = "yes" ; then
2984     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
2985     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
2986   fi
2987   if test "$guest_agent_ntddscsi" = "yes" ; then
2988     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
2989   fi
2990   echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
2991   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
2992   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
2993   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
2994 else
2995   echo "CONFIG_POSIX=y" >> $config_host_mak
2996 fi
2997
2998 if test "$linux" = "yes" ; then
2999   echo "CONFIG_LINUX=y" >> $config_host_mak
3000 fi
3001
3002 if test "$darwin" = "yes" ; then
3003   echo "CONFIG_DARWIN=y" >> $config_host_mak
3004 fi
3005
3006 if test "$solaris" = "yes" ; then
3007   echo "CONFIG_SOLARIS=y" >> $config_host_mak
3008 fi
3009 if test "$static" = "yes" ; then
3010   echo "CONFIG_STATIC=y" >> $config_host_mak
3011 fi
3012 if test "$want_tools" = "yes" ; then
3013   echo "CONFIG_TOOLS=y" >> $config_host_mak
3014 fi
3015 if test "$guest_agent" = "yes" ; then
3016   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
3017 fi
3018 if test "$slirp_smbd" = "yes" ; then
3019   echo "CONFIG_SLIRP_SMBD=y" >> $config_host_mak
3020   echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
3021 fi
3022 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
3023 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
3024 qemu_version=$(head $source_path/VERSION)
3025 echo "PKGVERSION=$pkgversion" >>$config_host_mak
3026 echo "SRC_PATH=$source_path" >> $config_host_mak
3027 echo "TARGET_DIRS=$target_list" >> $config_host_mak
3028 if test "$modules" = "yes"; then
3029   # $shacmd can generate a hash started with digit, which the compiler doesn't
3030   # like as an symbol. So prefix it with an underscore
3031   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
3032   echo "CONFIG_MODULES=y" >> $config_host_mak
3033 fi
3034 if test "$module_upgrades" = "yes"; then
3035   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
3036 fi
3037 if test "$have_usbfs" = "yes" ; then
3038   echo "CONFIG_USBFS=y" >> $config_host_mak
3039 fi
3040 if test "$gio" = "yes" ; then
3041     echo "CONFIG_GIO=y" >> $config_host_mak
3042     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
3043     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
3044 fi
3045 if test "$gdbus_codegen" != "" ; then
3046     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
3047 fi
3048 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
3049
3050 if test "$xen" = "enabled" ; then
3051   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
3052   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
3053   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
3054   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
3055 fi
3056 if test "$vhost_scsi" = "yes" ; then
3057   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
3058 fi
3059 if test "$vhost_net" = "yes" ; then
3060   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
3061 fi
3062 if test "$vhost_net_user" = "yes" ; then
3063   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
3064 fi
3065 if test "$vhost_net_vdpa" = "yes" ; then
3066   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
3067 fi
3068 if test "$vhost_crypto" = "yes" ; then
3069   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
3070 fi
3071 if test "$vhost_vsock" = "yes" ; then
3072   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
3073   if test "$vhost_user" = "yes" ; then
3074     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
3075   fi
3076 fi
3077 if test "$vhost_kernel" = "yes" ; then
3078   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
3079 fi
3080 if test "$vhost_user" = "yes" ; then
3081   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
3082 fi
3083 if test "$vhost_vdpa" = "yes" ; then
3084   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
3085 fi
3086 if test "$vhost_user_fs" = "yes" ; then
3087   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
3088 fi
3089 if test "$tcg" = "enabled" -a "$tcg_interpreter" = "true" ; then
3090   echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
3091 fi
3092
3093 if test "$opengl" = "yes" ; then
3094   echo "CONFIG_OPENGL=y" >> $config_host_mak
3095   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
3096   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
3097 fi
3098
3099 # XXX: suppress that
3100 if [ "$bsd" = "yes" ] ; then
3101   echo "CONFIG_BSD=y" >> $config_host_mak
3102 fi
3103
3104 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
3105 if test "$coroutine_pool" = "yes" ; then
3106   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
3107 else
3108   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
3109 fi
3110
3111 if test "$debug_stack_usage" = "yes" ; then
3112   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
3113 fi
3114
3115 if test "$have_asan_iface_fiber" = "yes" ; then
3116     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
3117 fi
3118
3119 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
3120     echo "CONFIG_TSAN=y" >> $config_host_mak
3121 fi
3122
3123 if test "$int128" = "yes" ; then
3124   echo "CONFIG_INT128=y" >> $config_host_mak
3125 fi
3126
3127 if test "$atomic128" = "yes" ; then
3128   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
3129 fi
3130
3131 if test "$cmpxchg128" = "yes" ; then
3132   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
3133 fi
3134
3135 if test "$rdma" = "yes" ; then
3136   echo "CONFIG_RDMA=y" >> $config_host_mak
3137   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
3138 fi
3139
3140 if test "$pvrdma" = "yes" ; then
3141   echo "CONFIG_PVRDMA=y" >> $config_host_mak
3142 fi
3143
3144 if test "$plugins" = "yes" ; then
3145     echo "CONFIG_PLUGIN=y" >> $config_host_mak
3146 fi
3147
3148 if test -n "$gdb_bin"; then
3149     gdb_version=$($gdb_bin --version | head -n 1)
3150     if version_ge ${gdb_version##* } 9.1; then
3151         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
3152     fi
3153 fi
3154
3155 if test "$secret_keyring" = "yes" ; then
3156   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
3157 fi
3158
3159 echo "ROMS=$roms" >> $config_host_mak
3160 echo "MAKE=$make" >> $config_host_mak
3161 echo "PYTHON=$python" >> $config_host_mak
3162 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
3163 echo "MESON=$meson" >> $config_host_mak
3164 echo "NINJA=$ninja" >> $config_host_mak
3165 echo "CC=$cc" >> $config_host_mak
3166 echo "HOST_CC=$host_cc" >> $config_host_mak
3167 if $iasl -h > /dev/null 2>&1; then
3168   echo "CONFIG_IASL=$iasl" >> $config_host_mak
3169 fi
3170 echo "AR=$ar" >> $config_host_mak
3171 echo "AS=$as" >> $config_host_mak
3172 echo "CCAS=$ccas" >> $config_host_mak
3173 echo "CPP=$cpp" >> $config_host_mak
3174 echo "OBJCOPY=$objcopy" >> $config_host_mak
3175 echo "LD=$ld" >> $config_host_mak
3176 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
3177 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
3178 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
3179 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
3180 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
3181 echo "GLIB_VERSION=$(pkg-config --modversion glib-2.0)" >> $config_host_mak
3182 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
3183 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
3184 echo "STRIP=$strip" >> $config_host_mak
3185 echo "EXESUF=$EXESUF" >> $config_host_mak
3186
3187 # use included Linux headers
3188 if test "$linux" = "yes" ; then
3189   mkdir -p linux-headers
3190   case "$cpu" in
3191   i386|x86_64)
3192     linux_arch=x86
3193     ;;
3194   ppc|ppc64)
3195     linux_arch=powerpc
3196     ;;
3197   s390x)
3198     linux_arch=s390
3199     ;;
3200   aarch64)
3201     linux_arch=arm64
3202     ;;
3203   loongarch*)
3204     linux_arch=loongarch
3205     ;;
3206   mips64)
3207     linux_arch=mips
3208     ;;
3209   *)
3210     # For most CPUs the kernel architecture name and QEMU CPU name match.
3211     linux_arch="$cpu"
3212     ;;
3213   esac
3214     # For non-KVM architectures we will not have asm headers
3215     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
3216       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
3217     fi
3218 fi
3219
3220 for target in $target_list; do
3221     target_dir="$target"
3222     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
3223     mkdir -p $target_dir
3224     case $target in
3225         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
3226         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
3227     esac
3228 done
3229
3230 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
3231 if test "$default_targets" = "yes"; then
3232   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
3233 fi
3234
3235 if test "$ccache_cpp2" = "yes"; then
3236   echo "export CCACHE_CPP2=y" >> $config_host_mak
3237 fi
3238
3239 if test "$safe_stack" = "yes"; then
3240   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
3241 fi
3242
3243 # If we're using a separate build tree, set it up now.
3244 # LINKS are things to symlink back into the source tree
3245 # (these can be both files and directories).
3246 # Caution: do not add files or directories here using wildcards. This
3247 # will result in problems later if a new file matching the wildcard is
3248 # added to the source tree -- nothing will cause configure to be rerun
3249 # so the build tree will be missing the link back to the new file, and
3250 # tests might fail. Prefer to keep the relevant files in their own
3251 # directory and symlink the directory instead.
3252 LINKS="Makefile"
3253 LINKS="$LINKS tests/tcg/Makefile.target"
3254 LINKS="$LINKS pc-bios/optionrom/Makefile"
3255 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
3256 LINKS="$LINKS roms/seabios/Makefile"
3257 LINKS="$LINKS pc-bios/qemu-icon.bmp"
3258 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
3259 LINKS="$LINKS tests/avocado tests/data"
3260 LINKS="$LINKS tests/qemu-iotests/check"
3261 LINKS="$LINKS python"
3262 LINKS="$LINKS contrib/plugins/Makefile "
3263 for bios_file in \
3264     $source_path/pc-bios/*.bin \
3265     $source_path/pc-bios/*.elf \
3266     $source_path/pc-bios/*.lid \
3267     $source_path/pc-bios/*.rom \
3268     $source_path/pc-bios/*.dtb \
3269     $source_path/pc-bios/*.img \
3270     $source_path/pc-bios/openbios-* \
3271     $source_path/pc-bios/u-boot.* \
3272     $source_path/pc-bios/palcode-* \
3273     $source_path/pc-bios/qemu_vga.ndrv
3274
3275 do
3276     LINKS="$LINKS pc-bios/$(basename $bios_file)"
3277 done
3278 for f in $LINKS ; do
3279     if [ -e "$source_path/$f" ]; then
3280         mkdir -p `dirname ./$f`
3281         symlink "$source_path/$f" "$f"
3282     fi
3283 done
3284
3285 (for i in $cross_cc_vars; do
3286   export $i
3287 done
3288 export target_list source_path use_containers cpu
3289 $source_path/tests/tcg/configure.sh)
3290
3291 # temporary config to build submodules
3292 if test -f $source_path/roms/seabios/Makefile; then
3293   for rom in seabios; do
3294     config_mak=roms/$rom/config.mak
3295     echo "# Automatically generated by configure - do not modify" > $config_mak
3296     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
3297     echo "AS=$as" >> $config_mak
3298     echo "CCAS=$ccas" >> $config_mak
3299     echo "CC=$cc" >> $config_mak
3300     echo "BCC=bcc" >> $config_mak
3301     echo "CPP=$cpp" >> $config_mak
3302     echo "OBJCOPY=objcopy" >> $config_mak
3303     echo "IASL=$iasl" >> $config_mak
3304     echo "LD=$ld" >> $config_mak
3305     echo "RANLIB=$ranlib" >> $config_mak
3306   done
3307 fi
3308
3309 config_mak=pc-bios/optionrom/config.mak
3310 echo "# Automatically generated by configure - do not modify" > $config_mak
3311 echo "TOPSRC_DIR=$source_path" >> $config_mak
3312
3313 if test "$skip_meson" = no; then
3314   cross="config-meson.cross.new"
3315   meson_quote() {
3316     test $# = 0 && return
3317     echo "'$(echo $* | sed "s/ /','/g")'"
3318   }
3319
3320   echo "# Automatically generated by configure - do not modify" > $cross
3321   echo "[properties]" >> $cross
3322
3323   # unroll any custom device configs
3324   for a in $device_archs; do
3325       eval "c=\$devices_${a}"
3326       echo "${a}-softmmu = '$c'" >> $cross
3327   done
3328
3329   test -z "$cxx" && echo "link_language = 'c'" >> $cross
3330   echo "[built-in options]" >> $cross
3331   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
3332   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
3333   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
3334   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
3335   echo "[binaries]" >> $cross
3336   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
3337   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
3338   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
3339   echo "ar = [$(meson_quote $ar)]" >> $cross
3340   echo "nm = [$(meson_quote $nm)]" >> $cross
3341   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
3342   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
3343   if has $sdl2_config; then
3344     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
3345   fi
3346   echo "strip = [$(meson_quote $strip)]" >> $cross
3347   echo "windres = [$(meson_quote $windres)]" >> $cross
3348   if test "$cross_compile" = "yes"; then
3349     cross_arg="--cross-file config-meson.cross"
3350     echo "[host_machine]" >> $cross
3351     echo "system = '$targetos'" >> $cross
3352     case "$cpu" in
3353         i386)
3354             echo "cpu_family = 'x86'" >> $cross
3355             ;;
3356         *)
3357             echo "cpu_family = '$cpu'" >> $cross
3358             ;;
3359     esac
3360     echo "cpu = '$cpu'" >> $cross
3361     if test "$bigendian" = "yes" ; then
3362         echo "endian = 'big'" >> $cross
3363     else
3364         echo "endian = 'little'" >> $cross
3365     fi
3366   else
3367     cross_arg="--native-file config-meson.cross"
3368   fi
3369   mv $cross config-meson.cross
3370
3371   rm -rf meson-private meson-info meson-logs
3372   run_meson() {
3373     NINJA=$ninja $meson setup \
3374         --prefix "$prefix" \
3375         --libdir "$libdir" \
3376         --libexecdir "$libexecdir" \
3377         --bindir "$bindir" \
3378         --includedir "$includedir" \
3379         --datadir "$datadir" \
3380         --mandir "$mandir" \
3381         --sysconfdir "$sysconfdir" \
3382         --localedir "$localedir" \
3383         --localstatedir "$local_statedir" \
3384         -Daudio_drv_list=$audio_drv_list \
3385         -Ddefault_devices=$default_devices \
3386         -Ddocdir="$docdir" \
3387         -Dqemu_firmwarepath="$firmwarepath" \
3388         -Dqemu_suffix="$qemu_suffix" \
3389         -Dsphinx_build="$sphinx_build" \
3390         -Dtrace_file="$trace_file" \
3391         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
3392         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
3393         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
3394         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
3395         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
3396         -Db_lto=$lto -Dcfi=$cfi -Dtcg=$tcg -Dxen=$xen \
3397         -Dcapstone=$capstone -Dfdt=$fdt -Dslirp=$slirp \
3398         $(test -n "${LIB_FUZZING_ENGINE+xxx}" && echo "-Dfuzzing_engine=$LIB_FUZZING_ENGINE") \
3399         $(if test "$default_feature" = no; then echo "-Dauto_features=disabled"; fi) \
3400         "$@" $cross_arg "$PWD" "$source_path"
3401   }
3402   eval run_meson $meson_options
3403   if test "$?" -ne 0 ; then
3404       error_exit "meson setup failed"
3405   fi
3406 else
3407   if test -f meson-private/cmd_line.txt; then
3408     # Adjust old command line options whose type was changed
3409     # Avoids having to use "setup --wipe" when Meson is upgraded
3410     perl -i -ne '
3411       s/^gettext = true$/gettext = auto/;
3412       s/^gettext = false$/gettext = disabled/;
3413       /^b_staticpic/ && next;
3414       print;' meson-private/cmd_line.txt
3415   fi
3416 fi
3417
3418 # Save the configure command line for later reuse.
3419 cat <<EOD >config.status
3420 #!/bin/sh
3421 # Generated by configure.
3422 # Run this file to recreate the current configuration.
3423 # Compiler output produced by configure, useful for debugging
3424 # configure, is in config.log if it exists.
3425 EOD
3426
3427 preserve_env() {
3428     envname=$1
3429
3430     eval envval=\$$envname
3431
3432     if test -n "$envval"
3433     then
3434         echo "$envname='$envval'" >> config.status
3435         echo "export $envname" >> config.status
3436     else
3437         echo "unset $envname" >> config.status
3438     fi
3439 }
3440
3441 # Preserve various env variables that influence what
3442 # features/build target configure will detect
3443 preserve_env AR
3444 preserve_env AS
3445 preserve_env CC
3446 preserve_env CPP
3447 preserve_env CFLAGS
3448 preserve_env CXX
3449 preserve_env CXXFLAGS
3450 preserve_env INSTALL
3451 preserve_env LD
3452 preserve_env LDFLAGS
3453 preserve_env LD_LIBRARY_PATH
3454 preserve_env LIBTOOL
3455 preserve_env MAKE
3456 preserve_env NM
3457 preserve_env OBJCOPY
3458 preserve_env PATH
3459 preserve_env PKG_CONFIG
3460 preserve_env PKG_CONFIG_LIBDIR
3461 preserve_env PKG_CONFIG_PATH
3462 preserve_env PYTHON
3463 preserve_env SDL2_CONFIG
3464 preserve_env SMBD
3465 preserve_env STRIP
3466 preserve_env WINDRES
3467
3468 printf "exec" >>config.status
3469 for i in "$0" "$@"; do
3470   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
3471 done
3472 echo ' "$@"' >>config.status
3473 chmod +x config.status
3474
3475 rm -r "$TMPDIR1"