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     if ! mkdir build || ! touch $MARKER
  35     then
  36         echo "ERROR: Could not create ./build directory. Check the permissions on"
  37         echo "your source directory, or try doing an out-of-tree build."
  38         exit 1
  39     fi
  40
  41     cat > GNUmakefile <<'EOF'
  42 # This file is auto-generated by configure to support in-source tree
  43 # 'make' command invocation
  44
  45 ifeq ($(MAKECMDGOALS),)
  46 recurse: all
  47 endif
  48
  49 .NOTPARALLEL: %
  50 %: force
  51         @echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
  52         @$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
  53         @if test "$(MAKECMDGOALS)" = "distclean" && \
  54             test -e build/auto-created-by-configure ; \
  55         then \
  56             rm -rf build GNUmakefile ; \
  57         fi
  58 force: ;
  59 .PHONY: force
  60 GNUmakefile: ;
  61
  62 EOF
  63     cd build
  64     exec "$source_path/configure" "$@"
  65 fi
  66
  67 # Temporary directory used for files created while
  68 # configure runs. Since it is in the build directory
  69 # we can safely blow away any previous version of it
  70 # (and we need not jump through hoops to try to delete
  71 # it when configure exits.)
  72 TMPDIR1="config-temp"
  73 rm -rf "${TMPDIR1}"
  74 if ! mkdir -p "${TMPDIR1}"; then
  75     echo "ERROR: failed to create temporary directory"
  76     exit 1
  77 fi
  78
  79 TMPB="qemu-conf"
  80 TMPC="${TMPDIR1}/${TMPB}.c"
  81 TMPO="${TMPDIR1}/${TMPB}.o"
  82 TMPM="${TMPDIR1}/${TMPB}.m"
  83 TMPE="${TMPDIR1}/${TMPB}.exe"
  84
  85 rm -f config.log
  86
  87 # Print a helpful header at the top of config.log
  88 echo "# QEMU configure log $(date)" >> config.log
  89 printf "# Configured with:" >> config.log
  90 # repeat the invocation to log and stdout for CI
  91 invoke=$(printf " '%s'" "$0" "$@")
  92 test -n "$GITLAB_CI" && echo "configuring with: $invoke"
  93 { echo "$invoke"; echo; echo "#"; } >> config.log
  94
  95 quote_sh() {
  96     printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
  97 }
  98
  99 print_error() {
 100     (echo
 101     echo "ERROR: $1"
 102     while test -n "$2"; do
 103         echo "       $2"
 104         shift
 105     done
 106     echo) >&2
 107 }
 108
 109 error_exit() {
 110     print_error "$@"
 111     exit 1
 112 }
 113
 114 do_compiler() {
 115   # Run the compiler, capturing its output to the log. First argument
 116   # is compiler binary to execute.
 117   compiler="$1"
 118   shift
 119   if test -n "$BASH_VERSION"; then eval '
 120       echo >>config.log "
 121 funcs: ${FUNCNAME[*]}
 122 lines: ${BASH_LINENO[*]}"
 123   '; fi
 124   echo $compiler "$@" >> config.log
 125   $compiler "$@" >> config.log 2>&1 || return $?
 126 }
 127
 128 do_compiler_werror() {
 129     # Run the compiler, capturing its output to the log. First argument
 130     # is compiler binary to execute.
 131     compiler="$1"
 132     shift
 133     if test -n "$BASH_VERSION"; then eval '
 134         echo >>config.log "
 135 funcs: ${FUNCNAME[*]}
 136 lines: ${BASH_LINENO[*]}"
 137     '; fi
 138     echo $compiler "$@" >> config.log
 139     $compiler "$@" >> config.log 2>&1 || return $?
 140     # Test passed. If this is an --enable-werror build, rerun
 141     # the test with -Werror and bail out if it fails. This
 142     # makes warning-generating-errors in configure test code
 143     # obvious to developers.
 144     if test "$werror" != "yes"; then
 145         return 0
 146     fi
 147     # Don't bother rerunning the compile if we were already using -Werror
 148     case "$*" in
 149         *-Werror*)
 150            return 0
 151         ;;
 152     esac
 153     echo $compiler -Werror "$@" >> config.log
 154     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 155     error_exit "configure test passed without -Werror but failed with -Werror." \
 156         "This is probably a bug in the configure script. The failing command" \
 157         "will be at the bottom of config.log." \
 158         "You can run configure with --disable-werror to bypass this check."
 159 }
 160
 161 do_cc() {
 162     do_compiler_werror "$cc" $CPU_CFLAGS "$@"
 163 }
 164
 165 do_objc() {
 166     do_compiler_werror "$objcc" $CPU_CFLAGS "$@"
 167 }
 168
 169 # Append $2 to the variable named $1, with space separation
 170 add_to() {
 171     eval $1=\${$1:+\"\$$1 \"}\$2
 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 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 219 then
 220   error_exit "main directory cannot contain spaces nor colons"
 221 fi
 222
 223 # default parameters
 224 cpu=""
 225 static="no"
 226 cross_compile="no"
 227 cross_prefix=""
 228 host_cc="cc"
 229 stack_protector=""
 230 safe_stack=""
 231 use_containers="yes"
 232 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 233
 234 if test -e "$source_path/.git"
 235 then
 236     git_submodules_action="update"
 237 else
 238     git_submodules_action="ignore"
 239 fi
 240
 241 git_submodules="ui/keycodemapdb"
 242 git="git"
 243
 244 # Don't accept a target_list environment variable.
 245 unset target_list
 246 unset target_list_exclude
 247
 248 # Default value for a variable defining feature "foo".
 249 #  * foo="no"  feature will only be used if --enable-foo arg is given
 250 #  * foo=""    feature will be searched for, and if found, will be used
 251 #              unless --disable-foo is given
 252 #  * foo="yes" this value will only be set by --enable-foo flag.
 253 #              feature will searched for,
 254 #              if not found, configure exits with error
 255 #
 256 # Always add --enable-foo and --disable-foo command line args.
 257 # Distributions want to ensure that several features are compiled in, and it
 258 # is impossible without a --enable-foo that exits if a feature is not found.
 259
 260 default_feature=""
 261 # parse CC options second
 262 for opt do
 263   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 264   case "$opt" in
 265       --without-default-features)
 266           default_feature="no"
 267   ;;
 268   esac
 269 done
 270
 271 EXTRA_CFLAGS=""
 272 EXTRA_CXXFLAGS=""
 273 EXTRA_OBJCFLAGS=""
 274 EXTRA_LDFLAGS=""
 275
 276 debug_tcg="no"
 277 sanitizers="no"
 278 tsan="no"
 279 fortify_source="yes"
 280 EXESUF=""
 281 modules="no"
 282 prefix="/usr/local"
 283 qemu_suffix="qemu"
 284 softmmu="yes"
 285 linux_user=""
 286 bsd_user=""
 287 pie=""
 288 coroutine=""
 289 plugins="$default_feature"
 290 meson=""
 291 ninja=""
 292 bindir="bin"
 293 skip_meson=no
 294 vfio_user_server="disabled"
 295
 296 # The following Meson options are handled manually (still they
 297 # are included in the automatically generated help message)
 298
 299 # 1. Track which submodules are needed
 300 fdt="auto"
 301
 302 # 2. Automatically enable/disable other options
 303 tcg="auto"
 304 cfi="false"
 305
 306 # parse CC options second
 307 for opt do
 308   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 309   case "$opt" in
 310   --cross-prefix=*) cross_prefix="$optarg"
 311                     cross_compile="yes"
 312   ;;
 313   --cc=*) CC="$optarg"
 314   ;;
 315   --cxx=*) CXX="$optarg"
 316   ;;
 317   --cpu=*) cpu="$optarg"
 318   ;;
 319   --extra-cflags=*)
 320     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 321     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 322     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 323     ;;
 324   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 325   ;;
 326   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 327   ;;
 328   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 329   ;;
 330   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 331   ;;
 332   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 333                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 334   ;;
 335   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 336                 eval "cross_cc_${cc_arch}=\$optarg"
 337   ;;
 338   --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
 339   ;;
 340   --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
 341                     eval "cross_prefix_${cc_arch}=\$optarg"
 342   ;;
 343   esac
 344 done
 345
 346 # Preferred compiler:
 347 #  ${CC} (if set)
 348 #  ${cross_prefix}gcc (if cross-prefix specified)
 349 #  system compiler
 350 if test -z "${CC}${cross_prefix}"; then
 351   cc="$host_cc"
 352 else
 353   cc="${CC-${cross_prefix}gcc}"
 354 fi
 355
 356 if test -z "${CXX}${cross_prefix}"; then
 357   cxx="c++"
 358 else
 359   cxx="${CXX-${cross_prefix}g++}"
 360 fi
 361
 362 ar="${AR-${cross_prefix}ar}"
 363 as="${AS-${cross_prefix}as}"
 364 ccas="${CCAS-$cc}"
 365 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 366 ld="${LD-${cross_prefix}ld}"
 367 ranlib="${RANLIB-${cross_prefix}ranlib}"
 368 nm="${NM-${cross_prefix}nm}"
 369 smbd="$SMBD"
 370 strip="${STRIP-${cross_prefix}strip}"
 371 widl="${WIDL-${cross_prefix}widl}"
 372 windres="${WINDRES-${cross_prefix}windres}"
 373 windmc="${WINDMC-${cross_prefix}windmc}"
 374 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 375 query_pkg_config() {
 376     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 377 }
 378 pkg_config=query_pkg_config
 379 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 380
 381 # default flags for all hosts
 382 # We use -fwrapv to tell the compiler that we require a C dialect where
 383 # left shift of signed integers is well defined and has the expected
 384 # 2s-complement style results. (Both clang and gcc agree that it
 385 # provides these semantics.)
 386 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 387 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 388
 389 QEMU_LDFLAGS=
 390
 391 # Flags that are needed during configure but later taken care of by Meson
 392 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 393 CONFIGURE_LDFLAGS=
 394
 395
 396 check_define() {
 397 cat > $TMPC <<EOF
 398 #if !defined($1)
 399 #error $1 not defined
 400 #endif
 401 int main(void) { return 0; }
 402 EOF
 403   compile_object
 404 }
 405
 406 check_include() {
 407 cat > $TMPC <<EOF
 408 #include <$1>
 409 int main(void) { return 0; }
 410 EOF
 411   compile_object
 412 }
 413
 414 write_c_skeleton() {
 415     cat > $TMPC <<EOF
 416 int main(void) { return 0; }
 417 EOF
 418 }
 419
 420 if check_define __linux__ ; then
 421   targetos=linux
 422 elif check_define _WIN32 ; then
 423   targetos=windows
 424 elif check_define __OpenBSD__ ; then
 425   targetos=openbsd
 426 elif check_define __sun__ ; then
 427   targetos=sunos
 428 elif check_define __HAIKU__ ; then
 429   targetos=haiku
 430 elif check_define __FreeBSD__ ; then
 431   targetos=freebsd
 432 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 433   targetos=gnu/kfreebsd
 434 elif check_define __DragonFly__ ; then
 435   targetos=dragonfly
 436 elif check_define __NetBSD__; then
 437   targetos=netbsd
 438 elif check_define __APPLE__; then
 439   targetos=darwin
 440 else
 441   # This is a fatal error, but don't report it yet, because we
 442   # might be going to just print the --help text, or it might
 443   # be the result of a missing compiler.
 444   targetos=bogus
 445 fi
 446
 447 # OS specific
 448
 449 mingw32="no"
 450 bsd="no"
 451 linux="no"
 452 solaris="no"
 453 case $targetos in
 454 windows)
 455   mingw32="yes"
 456   plugins="no"
 457   pie="no"
 458 ;;
 459 gnu/kfreebsd)
 460   bsd="yes"
 461 ;;
 462 freebsd)
 463   bsd="yes"
 464   make="${MAKE-gmake}"
 465   # needed for kinfo_getvmmap(3) in libutil.h
 466 ;;
 467 dragonfly)
 468   bsd="yes"
 469   make="${MAKE-gmake}"
 470 ;;
 471 netbsd)
 472   bsd="yes"
 473   make="${MAKE-gmake}"
 474 ;;
 475 openbsd)
 476   bsd="yes"
 477   make="${MAKE-gmake}"
 478 ;;
 479 darwin)
 480   bsd="yes"
 481   darwin="yes"
 482   # Disable attempts to use ObjectiveC features in os/object.h since they
 483   # won't work when we're compiling with gcc as a C compiler.
 484   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 485 ;;
 486 sunos)
 487   solaris="yes"
 488   make="${MAKE-gmake}"
 489 # needed for CMSG_ macros in sys/socket.h
 490   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 491 # needed for TIOCWIN* defines in termios.h
 492   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 493 ;;
 494 haiku)
 495   pie="no"
 496   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 497 ;;
 498 linux)
 499   linux="yes"
 500 ;;
 501 esac
 502
 503 if test ! -z "$cpu" ; then
 504   # command line argument
 505   :
 506 elif check_define __i386__ ; then
 507   cpu="i386"
 508 elif check_define __x86_64__ ; then
 509   if check_define __ILP32__ ; then
 510     cpu="x32"
 511   else
 512     cpu="x86_64"
 513   fi
 514 elif check_define __sparc__ ; then
 515   if check_define __arch64__ ; then
 516     cpu="sparc64"
 517   else
 518     cpu="sparc"
 519   fi
 520 elif check_define _ARCH_PPC ; then
 521   if check_define _ARCH_PPC64 ; then
 522     if check_define _LITTLE_ENDIAN ; then
 523       cpu="ppc64le"
 524     else
 525       cpu="ppc64"
 526     fi
 527   else
 528     cpu="ppc"
 529   fi
 530 elif check_define __mips__ ; then
 531   cpu="mips"
 532 elif check_define __s390__ ; then
 533   if check_define __s390x__ ; then
 534     cpu="s390x"
 535   else
 536     cpu="s390"
 537   fi
 538 elif check_define __riscv ; then
 539   cpu="riscv"
 540 elif check_define __arm__ ; then
 541   cpu="arm"
 542 elif check_define __aarch64__ ; then
 543   cpu="aarch64"
 544 elif check_define __loongarch64 ; then
 545   cpu="loongarch64"
 546 else
 547   # Using uname is really broken, but it is just a fallback for architectures
 548   # that are going to use TCI anyway
 549   cpu=$(uname -m)
 550   echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
 551 fi
 552
 553 # Normalise host CPU name and set multilib cflags.  The canonicalization
 554 # isn't really necessary, because the architectures that we check for
 555 # should not hit the 'uname -m' case, but better safe than sorry.
 556 # Note that this case should only have supported host CPUs, not guests.
 557 case "$cpu" in
 558   armv*b|armv*l|arm)
 559     cpu="arm" ;;
 560
 561   i386|i486|i586|i686)
 562     cpu="i386"
 563     CPU_CFLAGS="-m32" ;;
 564   x32)
 565     cpu="x86_64"
 566     CPU_CFLAGS="-mx32" ;;
 567   x86_64|amd64)
 568     cpu="x86_64"
 569     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 570     # If we truly care, we should simply detect this case at
 571     # runtime and generate the fallback to serial emulation.
 572     CPU_CFLAGS="-m64 -mcx16" ;;
 573
 574   mips*)
 575     cpu="mips" ;;
 576
 577   ppc)
 578     CPU_CFLAGS="-m32" ;;
 579   ppc64)
 580     CPU_CFLAGS="-m64 -mbig-endian" ;;
 581   ppc64le)
 582     cpu="ppc64"
 583     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 584
 585   s390)
 586     CPU_CFLAGS="-m31" ;;
 587   s390x)
 588     CPU_CFLAGS="-m64" ;;
 589
 590   sparc|sun4[cdmuv])
 591     cpu="sparc"
 592     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 593   sparc64)
 594     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 595 esac
 596
 597 : ${make=${MAKE-make}}
 598
 599
 600 check_py_version() {
 601     # We require python >= 3.6.
 602     # NB: a True python conditional creates a non-zero return code (Failure)
 603     "$1" -c 'import sys; sys.exit(sys.version_info < (3,6))'
 604 }
 605
 606 python=
 607 first_python=
 608 if test -z "${PYTHON}"; then
 609     explicit_python=no
 610     # A bare 'python' is traditionally python 2.x, but some distros
 611     # have it as python 3.x, so check in both places.
 612     for binary in python3 python python3.11 python3.10 python3.9 python3.8 python3.7 python3.6; do
 613         if has "$binary"; then
 614             python=$(command -v "$binary")
 615             if check_py_version "$python"; then
 616                 # This one is good.
 617                 first_python=
 618                 break
 619             else
 620                 first_python=$python
 621             fi
 622         fi
 623     done
 624 else
 625     # Same as above, but only check the environment variable.
 626     has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
 627     python=$(command -v "$PYTHON")
 628     explicit_python=yes
 629     if check_py_version "$python"; then
 630         # This one is good.
 631         first_python=
 632     else
 633         first_python=$first_python
 634     fi
 635 fi
 636
 637 # Check for ancillary tools used in testing
 638 genisoimage=
 639 for binary in genisoimage mkisofs
 640 do
 641     if has $binary
 642     then
 643         genisoimage=$(command -v "$binary")
 644         break
 645     fi
 646 done
 647
 648 # Default objcc to clang if available, otherwise use CC
 649 if has clang; then
 650   objcc=clang
 651 else
 652   objcc="$cc"
 653 fi
 654
 655 if test "$mingw32" = "yes" ; then
 656   EXESUF=".exe"
 657   # MinGW needs -mthreads for TLS and macro _MT.
 658   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 659   prefix="/qemu"
 660   bindir=""
 661   qemu_suffix=""
 662 fi
 663
 664 werror=""
 665
 666 meson_option_build_array() {
 667   printf '['
 668   (if test "$targetos" = windows; then
 669     IFS=\;
 670   else
 671     IFS=:
 672   fi
 673   for e in $1; do
 674     printf '"""'
 675     # backslash escape any '\' and '"' characters
 676     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
 677     printf '""",'
 678   done)
 679   printf ']\n'
 680 }
 681
 682 . "$source_path/scripts/meson-buildoptions.sh"
 683
 684 meson_options=
 685 meson_option_add() {
 686   meson_options="$meson_options $(quote_sh "$1")"
 687 }
 688 meson_option_parse() {
 689   meson_options="$meson_options $(_meson_option_parse "$@")"
 690   if test $? -eq 1; then
 691     echo "ERROR: unknown option $1"
 692     echo "Try '$0 --help' for more information"
 693     exit 1
 694   fi
 695 }
 696
 697 for opt do
 698   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 699   case "$opt" in
 700   --help|-h) show_help=yes
 701   ;;
 702   --version|-V) exec cat "$source_path/VERSION"
 703   ;;
 704   --prefix=*) prefix="$optarg"
 705   ;;
 706   --cross-prefix=*)
 707   ;;
 708   --cc=*)
 709   ;;
 710   --host-cc=*) host_cc="$optarg"
 711   ;;
 712   --cxx=*)
 713   ;;
 714   --objcc=*) objcc="$optarg"
 715   ;;
 716   --make=*) make="$optarg"
 717   ;;
 718   --install=*)
 719   ;;
 720   --python=*) python="$optarg" ; explicit_python=yes
 721   ;;
 722   --skip-meson) skip_meson=yes
 723   ;;
 724   --meson=*) meson="$optarg"
 725   ;;
 726   --ninja=*) ninja="$optarg"
 727   ;;
 728   --smbd=*) smbd="$optarg"
 729   ;;
 730   --extra-cflags=*)
 731   ;;
 732   --extra-cxxflags=*)
 733   ;;
 734   --extra-objcflags=*)
 735   ;;
 736   --extra-ldflags=*)
 737   ;;
 738   --cross-cc-*)
 739   ;;
 740   --cross-prefix-*)
 741   ;;
 742   --enable-debug-info) meson_option_add -Ddebug=true
 743   ;;
 744   --disable-debug-info) meson_option_add -Ddebug=false
 745   ;;
 746   --enable-modules)
 747       modules="yes"
 748   ;;
 749   --disable-modules)
 750       modules="no"
 751   ;;
 752   --cpu=*)
 753   ;;
 754   --target-list=*) target_list="$optarg"
 755                    if test "$target_list_exclude"; then
 756                        error_exit "Can't mix --target-list with --target-list-exclude"
 757                    fi
 758   ;;
 759   --target-list-exclude=*) target_list_exclude="$optarg"
 760                    if test "$target_list"; then
 761                        error_exit "Can't mix --target-list-exclude with --target-list"
 762                    fi
 763   ;;
 764   --with-default-devices) meson_option_add -Ddefault_devices=true
 765   ;;
 766   --without-default-devices) meson_option_add -Ddefault_devices=false
 767   ;;
 768   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 769   ;;
 770   --with-devices-*) device_arch=${opt#--with-devices-};
 771                     device_arch=${device_arch%%=*}
 772                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 773                     if test -f "$cf"; then
 774                         device_archs="$device_archs $device_arch"
 775                         eval "devices_${device_arch}=\$optarg"
 776                     else
 777                         error_exit "File $cf does not exist"
 778                     fi
 779   ;;
 780   --without-default-features) # processed above
 781   ;;
 782   --static)
 783     static="yes"
 784     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 785   ;;
 786   --bindir=*) bindir="$optarg"
 787   ;;
 788   --with-suffix=*) qemu_suffix="$optarg"
 789   ;;
 790   --host=*|--build=*|\
 791   --disable-dependency-tracking|\
 792   --sbindir=*|--sharedstatedir=*|\
 793   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 794   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 795     # These switches are silently ignored, for compatibility with
 796     # autoconf-generated configure scripts. This allows QEMU's
 797     # configure to be used by RPM and similar macros that set
 798     # lots of directory switches by default.
 799   ;;
 800   --enable-debug-tcg) debug_tcg="yes"
 801   ;;
 802   --disable-debug-tcg) debug_tcg="no"
 803   ;;
 804   --enable-debug)
 805       # Enable debugging options that aren't excessively noisy
 806       debug_tcg="yes"
 807       meson_option_parse --enable-debug-mutex ""
 808       meson_option_add -Doptimization=0
 809       fortify_source="no"
 810   ;;
 811   --enable-sanitizers) sanitizers="yes"
 812   ;;
 813   --disable-sanitizers) sanitizers="no"
 814   ;;
 815   --enable-tsan) tsan="yes"
 816   ;;
 817   --disable-tsan) tsan="no"
 818   ;;
 819   --disable-tcg) tcg="disabled"
 820                  plugins="no"
 821   ;;
 822   --enable-tcg) tcg="enabled"
 823   ;;
 824   --disable-system) softmmu="no"
 825   ;;
 826   --enable-system) softmmu="yes"
 827   ;;
 828   --disable-user)
 829       linux_user="no" ;
 830       bsd_user="no" ;
 831   ;;
 832   --enable-user) ;;
 833   --disable-linux-user) linux_user="no"
 834   ;;
 835   --enable-linux-user) linux_user="yes"
 836   ;;
 837   --disable-bsd-user) bsd_user="no"
 838   ;;
 839   --enable-bsd-user) bsd_user="yes"
 840   ;;
 841   --enable-pie) pie="yes"
 842   ;;
 843   --disable-pie) pie="no"
 844   ;;
 845   --enable-werror) werror="yes"
 846   ;;
 847   --disable-werror) werror="no"
 848   ;;
 849   --enable-stack-protector) stack_protector="yes"
 850   ;;
 851   --disable-stack-protector) stack_protector="no"
 852   ;;
 853   --enable-safe-stack) safe_stack="yes"
 854   ;;
 855   --disable-safe-stack) safe_stack="no"
 856   ;;
 857   --enable-cfi)
 858       cfi="true";
 859       meson_option_add -Db_lto=true
 860   ;;
 861   --disable-cfi) cfi="false"
 862   ;;
 863   --disable-fdt) fdt="disabled"
 864   ;;
 865   --enable-fdt) fdt="enabled"
 866   ;;
 867   --enable-fdt=git) fdt="internal"
 868   ;;
 869   --enable-fdt=*) fdt="$optarg"
 870   ;;
 871   --with-coroutine=*) coroutine="$optarg"
 872   ;;
 873   --with-git=*) git="$optarg"
 874   ;;
 875   --with-git-submodules=*)
 876       git_submodules_action="$optarg"
 877   ;;
 878   --enable-plugins) if test "$mingw32" = "yes"; then
 879                         error_exit "TCG plugins not currently supported on Windows platforms"
 880                     else
 881                         plugins="yes"
 882                     fi
 883   ;;
 884   --disable-plugins) plugins="no"
 885   ;;
 886   --enable-containers) use_containers="yes"
 887   ;;
 888   --disable-containers) use_containers="no"
 889   ;;
 890   --gdb=*) gdb_bin="$optarg"
 891   ;;
 892   --enable-vfio-user-server) vfio_user_server="enabled"
 893   ;;
 894   --disable-vfio-user-server) vfio_user_server="disabled"
 895   ;;
 896   # everything else has the same name in configure and meson
 897   --*) meson_option_parse "$opt" "$optarg"
 898   ;;
 899   esac
 900 done
 901
 902 # test for any invalid configuration combinations
 903 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
 904     error_exit "Can't enable plugins on non-TCG builds"
 905 fi
 906
 907 case $git_submodules_action in
 908     update|validate)
 909         if test ! -e "$source_path/.git"; then
 910             echo "ERROR: cannot $git_submodules_action git submodules without .git"
 911             exit 1
 912         fi
 913     ;;
 914     ignore)
 915         if ! test -f "$source_path/ui/keycodemapdb/README"
 916         then
 917             echo
 918             echo "ERROR: missing GIT submodules"
 919             echo
 920             if test -e "$source_path/.git"; then
 921                 echo "--with-git-submodules=ignore specified but submodules were not"
 922                 echo "checked out.  Please initialize and update submodules."
 923             else
 924                 echo "This is not a GIT checkout but module content appears to"
 925                 echo "be missing. Do not use 'git archive' or GitHub download links"
 926                 echo "to acquire QEMU source archives. Non-GIT builds are only"
 927                 echo "supported with source archives linked from:"
 928                 echo
 929                 echo "  https://www.qemu.org/download/#source"
 930                 echo
 931                 echo "Developers working with GIT can use scripts/archive-source.sh"
 932                 echo "if they need to create valid source archives."
 933             fi
 934             echo
 935             exit 1
 936         fi
 937     ;;
 938     *)
 939         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
 940         exit 1
 941     ;;
 942 esac
 943
 944 default_target_list=""
 945 mak_wilds=""
 946
 947 if [ "$linux_user" != no ]; then
 948     if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then
 949         linux_user=yes
 950     elif [ "$linux_user" = yes ]; then
 951         error_exit "linux-user not supported on this architecture"
 952     fi
 953 fi
 954 if [ "$bsd_user" != no ]; then
 955     if [ "$bsd_user" = "" ]; then
 956         test $targetos = freebsd && bsd_user=yes
 957     fi
 958     if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
 959         error_exit "bsd-user not supported on this host OS"
 960     fi
 961 fi
 962 if [ "$softmmu" = "yes" ]; then
 963     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 964 fi
 965 if [ "$linux_user" = "yes" ]; then
 966     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 967 fi
 968 if [ "$bsd_user" = "yes" ]; then
 969     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 970 fi
 971
 972 for config in $mak_wilds; do
 973     target="$(basename "$config" .mak)"
 974     if echo "$target_list_exclude" | grep -vq "$target"; then
 975         default_target_list="${default_target_list} $target"
 976     fi
 977 done
 978
 979 if test x"$show_help" = x"yes" ; then
 980 cat << EOF
 981
 982 Usage: configure [options]
 983 Options: [defaults in brackets after descriptions]
 984
 985 Standard options:
 986   --help                   print this message
 987   --prefix=PREFIX          install in PREFIX [$prefix]
 988   --target-list=LIST       set target list (default: build all)
 989 $(echo Available targets: $default_target_list | \
 990   fold -s -w 53 | sed -e 's/^/                           /')
 991   --target-list-exclude=LIST exclude a set of targets from the default target-list
 992
 993 Advanced options (experts only):
 994   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
 995   --cc=CC                  use C compiler CC [$cc]
 996   --host-cc=CC             use C compiler CC [$host_cc] for code run at
 997                            build time
 998   --cxx=CXX                use C++ compiler CXX [$cxx]
 999   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1000   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
1001   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
1002   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
1003   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1004   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1005   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
1006   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
1007   --make=MAKE              use specified make [$make]
1008   --python=PYTHON          use specified python [$python]
1009   --meson=MESON            use specified meson [$meson]
1010   --ninja=NINJA            use specified ninja [$ninja]
1011   --smbd=SMBD              use specified smbd [$smbd]
1012   --with-git=GIT           use specified git [$git]
1013   --with-git-submodules=update   update git submodules (default if .git dir exists)
1014   --with-git-submodules=validate fail if git submodules are not up to date
1015   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1016   --static                 enable static build [$static]
1017   --bindir=PATH            install binaries in PATH
1018   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1019   --without-default-features default all --enable-* options to "disabled"
1020   --without-default-devices  do not include any device that is not needed to
1021                            start the emulator (only use if you are including
1022                            desired devices in configs/devices/)
1023   --with-devices-ARCH=NAME override default configs/devices
1024   --enable-debug           enable common debug build options
1025   --enable-sanitizers      enable default sanitizers
1026   --enable-tsan            enable thread sanitizer
1027   --disable-werror         disable compilation abort on warning
1028   --disable-stack-protector disable compiler-provided stack protection
1029   --cpu=CPU                Build for host CPU [$cpu]
1030   --with-coroutine=BACKEND coroutine backend. Supported options:
1031                            ucontext, sigaltstack, windows
1032   --enable-plugins
1033                            enable plugins via shared library loading
1034   --disable-containers     don't use containers for cross-building
1035   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1036 EOF
1037   meson_options_help
1038 cat << EOF
1039   system          all system emulation targets
1040   user            supported user emulation targets
1041   linux-user      all linux usermode emulation targets
1042   bsd-user        all BSD usermode emulation targets
1043   pie             Position Independent Executables
1044   modules         modules support (non-Windows)
1045   debug-tcg       TCG debugging (default is disabled)
1046   debug-info      debugging information
1047   safe-stack      SafeStack Stack Smash Protection. Depends on
1048                   clang/llvm and requires coroutine backend ucontext.
1049
1050 NOTE: The object files are built at the place where configure is launched
1051 EOF
1052 exit 0
1053 fi
1054
1055 # Remove old dependency files to make sure that they get properly regenerated
1056 rm -f ./*/config-devices.mak.d
1057
1058 if test -z "$python"
1059 then
1060     # If first_python is set, there was a binary somewhere even though
1061     # it was not suitable.  Use it for the error message.
1062     if test -n "$first_python"; then
1063         error_exit "Cannot use '$first_python', Python >= 3.6 is required." \
1064             "Use --python=/path/to/python to specify a supported Python."
1065     else
1066         error_exit "Python not found. Use --python=/path/to/python"
1067     fi
1068 fi
1069
1070 if ! has "$make"
1071 then
1072     error_exit "GNU make ($make) not found"
1073 fi
1074
1075 if ! check_py_version "$python"; then
1076   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1077       "Use --python=/path/to/python to specify a supported Python."
1078 fi
1079
1080 # Resolve PATH + suppress writing compiled files
1081 python="$(command -v "$python") -B"
1082
1083 has_meson() {
1084   local python_dir=$(dirname "$python")
1085   # PEP405: pyvenv.cfg is either adjacent to the Python executable
1086   # or one directory above
1087   if test -f $python_dir/pyvenv.cfg || test -f $python_dir/../pyvenv.cfg; then
1088     # Ensure that Meson and Python come from the same virtual environment
1089     test -x "$python_dir/meson" &&
1090       test "$(command -v meson)" -ef "$python_dir/meson"
1091   else
1092     has meson
1093   fi
1094 }
1095
1096 if test -z "$meson"; then
1097     if test "$explicit_python" = no && has_meson && version_ge "$(meson --version)" 0.61.5; then
1098         meson=meson
1099     elif test "$git_submodules_action" != 'ignore' ; then
1100         meson=git
1101     elif test -e "${source_path}/meson/meson.py" ; then
1102         meson=internal
1103     else
1104         if test "$explicit_python" = yes; then
1105             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1106         else
1107             error_exit "Meson not found.  Use --meson=/path/to/meson"
1108         fi
1109     fi
1110 else
1111     # Meson uses its own Python interpreter to invoke other Python scripts,
1112     # but the user wants to use the one they specified with --python.
1113     #
1114     # We do not want to override the distro Python interpreter (and sometimes
1115     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1116     # just require --meson=git|internal together with --python.
1117     if test "$explicit_python" = yes; then
1118         case "$meson" in
1119             git | internal) ;;
1120             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1121         esac
1122     fi
1123 fi
1124
1125 if test "$meson" = git; then
1126     git_submodules="${git_submodules} meson"
1127 fi
1128
1129 case "$meson" in
1130     git | internal)
1131         meson="$python ${source_path}/meson/meson.py"
1132         ;;
1133     *) meson=$(command -v "$meson") ;;
1134 esac
1135
1136 # Probe for ninja
1137
1138 if test -z "$ninja"; then
1139     for c in ninja ninja-build samu; do
1140         if has $c; then
1141             ninja=$(command -v "$c")
1142             break
1143         fi
1144     done
1145     if test -z "$ninja"; then
1146       error_exit "Cannot find Ninja"
1147     fi
1148 fi
1149
1150 # Check that the C compiler works. Doing this here before testing
1151 # the host CPU ensures that we had a valid CC to autodetect the
1152 # $cpu var (and we should bail right here if that's not the case).
1153 # It also allows the help message to be printed without a CC.
1154 write_c_skeleton;
1155 if compile_object ; then
1156   : C compiler works ok
1157 else
1158     error_exit "\"$cc\" either does not exist or does not work"
1159 fi
1160 if ! compile_prog ; then
1161     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1162 fi
1163
1164 # Consult white-list to determine whether to enable werror
1165 # by default.  Only enable by default for git builds
1166 if test -z "$werror" ; then
1167     if test "$git_submodules_action" != "ignore" && \
1168         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1169         werror="yes"
1170     else
1171         werror="no"
1172     fi
1173 fi
1174
1175 if test "$targetos" = "bogus"; then
1176     # Now that we know that we're not printing the help and that
1177     # the compiler works (so the results of the check_defines we used
1178     # to identify the OS are reliable), if we didn't recognize the
1179     # host OS we should stop now.
1180     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1181 fi
1182
1183 # Check whether the compiler matches our minimum requirements:
1184 cat > $TMPC << EOF
1185 #if defined(__clang_major__) && defined(__clang_minor__)
1186 # ifdef __apple_build_version__
1187 #  if __clang_major__ < 12 || (__clang_major__ == 12 && __clang_minor__ < 0)
1188 #   error You need at least XCode Clang v12.0 to compile QEMU
1189 #  endif
1190 # else
1191 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1192 #   error You need at least Clang v10.0 to compile QEMU
1193 #  endif
1194 # endif
1195 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1196 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1197 #  error You need at least GCC v7.4.0 to compile QEMU
1198 # endif
1199 #else
1200 # error You either need GCC or Clang to compiler QEMU
1201 #endif
1202 int main (void) { return 0; }
1203 EOF
1204 if ! compile_prog "" "" ; then
1205     error_exit "You need at least GCC v7.4 or Clang v10.0 (or XCode Clang v12.0)"
1206 fi
1207
1208 # Accumulate -Wfoo and -Wno-bar separately.
1209 # We will list all of the enable flags first, and the disable flags second.
1210 # Note that we do not add -Werror, because that would enable it for all
1211 # configure tests. If a configure test failed due to -Werror this would
1212 # just silently disable some features, so it's too error prone.
1213
1214 warn_flags=
1215 add_to warn_flags -Wundef
1216 add_to warn_flags -Wwrite-strings
1217 add_to warn_flags -Wmissing-prototypes
1218 add_to warn_flags -Wstrict-prototypes
1219 add_to warn_flags -Wredundant-decls
1220 add_to warn_flags -Wold-style-declaration
1221 add_to warn_flags -Wold-style-definition
1222 add_to warn_flags -Wtype-limits
1223 add_to warn_flags -Wformat-security
1224 add_to warn_flags -Wformat-y2k
1225 add_to warn_flags -Winit-self
1226 add_to warn_flags -Wignored-qualifiers
1227 add_to warn_flags -Wempty-body
1228 add_to warn_flags -Wnested-externs
1229 add_to warn_flags -Wendif-labels
1230 add_to warn_flags -Wexpansion-to-defined
1231 add_to warn_flags -Wimplicit-fallthrough=2
1232 add_to warn_flags -Wmissing-format-attribute
1233
1234 if test "$targetos" != "darwin"; then
1235     add_to warn_flags -Wthread-safety
1236 fi
1237
1238 nowarn_flags=
1239 add_to nowarn_flags -Wno-initializer-overrides
1240 add_to nowarn_flags -Wno-missing-include-dirs
1241 add_to nowarn_flags -Wno-shift-negative-value
1242 add_to nowarn_flags -Wno-string-plus-int
1243 add_to nowarn_flags -Wno-typedef-redefinition
1244 add_to nowarn_flags -Wno-tautological-type-limit-compare
1245 add_to nowarn_flags -Wno-psabi
1246 add_to nowarn_flags -Wno-gnu-variable-sized-type-not-at-end
1247
1248 gcc_flags="$warn_flags $nowarn_flags"
1249
1250 cc_has_warning_flag() {
1251     write_c_skeleton;
1252
1253     # Use the positive sense of the flag when testing for -Wno-wombat
1254     # support (gcc will happily accept the -Wno- form of unknown
1255     # warning options).
1256     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1257     compile_prog "-Werror $optflag" ""
1258 }
1259
1260 objcc_has_warning_flag() {
1261     cat > $TMPM <<EOF
1262 int main(void) { return 0; }
1263 EOF
1264
1265     # Use the positive sense of the flag when testing for -Wno-wombat
1266     # support (gcc will happily accept the -Wno- form of unknown
1267     # warning options).
1268     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1269     do_objc -Werror $optflag \
1270       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1271       -o $TMPE $TMPM $QEMU_LDFLAGS
1272 }
1273
1274 for flag in $gcc_flags; do
1275     if cc_has_warning_flag $flag ; then
1276         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1277     fi
1278     if objcc_has_warning_flag $flag ; then
1279         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1280     fi
1281 done
1282
1283 if test "$stack_protector" != "no"; then
1284   cat > $TMPC << EOF
1285 int main(int argc, char *argv[])
1286 {
1287     char arr[64], *p = arr, *c = argv[argc - 1];
1288     while (*c) {
1289         *p++ = *c++;
1290     }
1291     return 0;
1292 }
1293 EOF
1294   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1295   sp_on=0
1296   for flag in $gcc_flags; do
1297     # We need to check both a compile and a link, since some compiler
1298     # setups fail only on a .c->.o compile and some only at link time
1299     if compile_object "-Werror $flag" &&
1300        compile_prog "-Werror $flag" ""; then
1301       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1302       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1303       sp_on=1
1304       break
1305     fi
1306   done
1307   if test "$stack_protector" = yes; then
1308     if test $sp_on = 0; then
1309       error_exit "Stack protector not supported"
1310     fi
1311   fi
1312 fi
1313
1314 # Our module code doesn't support Windows
1315 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1316   error_exit "Modules are not available for Windows"
1317 fi
1318
1319 # Static linking is not possible with plugins, modules or PIE
1320 if test "$static" = "yes" ; then
1321   if test "$modules" = "yes" ; then
1322     error_exit "static and modules are mutually incompatible"
1323   fi
1324   if test "$plugins" = "yes"; then
1325     error_exit "static and plugins are mutually incompatible"
1326   else
1327     plugins="no"
1328   fi
1329 fi
1330 test "$plugins" = "" && plugins=yes
1331
1332 cat > $TMPC << EOF
1333
1334 #ifdef __linux__
1335 #  define THREAD __thread
1336 #else
1337 #  define THREAD
1338 #endif
1339 static THREAD int tls_var;
1340 int main(void) { return tls_var; }
1341 EOF
1342
1343 # Meson currently only handles pie as a boolean for now so if we have
1344 # explicitly disabled PIE we need to extend our cflags because it wont.
1345 if test "$static" = "yes"; then
1346   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1347     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1348     pie="yes"
1349   elif test "$pie" = "yes"; then
1350     error_exit "-static-pie not available due to missing toolchain support"
1351   else
1352     pie="no"
1353     QEMU_CFLAGS="-fno-pie $QEMU_CFLAGS"
1354   fi
1355 elif test "$pie" = "no"; then
1356   if compile_prog "-Werror -fno-pie" "-no-pie"; then
1357     CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS"
1358     CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS"
1359     QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1360   fi
1361 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1362   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1363   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1364   pie="yes"
1365 elif test "$pie" = "yes"; then
1366   error_exit "PIE not available due to missing toolchain support"
1367 else
1368   echo "Disabling PIE due to missing toolchain support"
1369   pie="no"
1370 fi
1371
1372 ##########################################
1373 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1374 # use i686 as default anyway, but for those that don't, an explicit
1375 # specification is necessary
1376
1377 if test "$cpu" = "i386"; then
1378   cat > $TMPC << EOF
1379 static int sfaa(int *ptr)
1380 {
1381   return __sync_fetch_and_and(ptr, 0);
1382 }
1383
1384 int main(void)
1385 {
1386   int val = 42;
1387   val = __sync_val_compare_and_swap(&val, 0, 1);
1388   sfaa(&val);
1389   return val;
1390 }
1391 EOF
1392   if ! compile_prog "" "" ; then
1393     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1394   fi
1395 fi
1396
1397 if test -z "${target_list+xxx}" ; then
1398     default_targets=yes
1399     for target in $default_target_list; do
1400         target_list="$target_list $target"
1401     done
1402     target_list="${target_list# }"
1403 else
1404     default_targets=no
1405     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1406     for target in $target_list; do
1407         # Check that we recognised the target name; this allows a more
1408         # friendly error message than if we let it fall through.
1409         case " $default_target_list " in
1410             *" $target "*)
1411                 ;;
1412             *)
1413                 error_exit "Unknown target name '$target'"
1414                 ;;
1415         esac
1416     done
1417 fi
1418
1419 # see if system emulation was really requested
1420 case " $target_list " in
1421   *"-softmmu "*) softmmu=yes
1422   ;;
1423   *) softmmu=no
1424   ;;
1425 esac
1426
1427 if test "$tcg" = "auto"; then
1428   if test -z "$target_list"; then
1429     tcg="disabled"
1430   else
1431     tcg="enabled"
1432   fi
1433 fi
1434
1435 if test "$tcg" = "enabled"; then
1436     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1437     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1438 fi
1439
1440 ##########################################
1441 # big/little endian test
1442 cat > $TMPC << EOF
1443 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1444 # error LITTLE
1445 #endif
1446 int main(void) { return 0; }
1447 EOF
1448
1449 if ! compile_prog ; then
1450   bigendian="no"
1451 else
1452   cat > $TMPC << EOF
1453 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1454 # error BIG
1455 #endif
1456 int main(void) { return 0; }
1457 EOF
1458
1459   if ! compile_prog ; then
1460     bigendian="yes"
1461   else
1462     echo big/little test failed
1463     exit 1
1464   fi
1465 fi
1466
1467 ##########################################
1468 # pkg-config probe
1469
1470 if ! has "$pkg_config_exe"; then
1471   error_exit "pkg-config binary '$pkg_config_exe' not found"
1472 fi
1473
1474 ##########################################
1475 # glib support probe
1476
1477 # When bumping glib_req_ver, please check also whether we should increase
1478 # the _WIN32_WINNT setting in osdep.h according to the value from glib
1479 glib_req_ver=2.56
1480 glib_modules=gthread-2.0
1481 if test "$modules" = yes; then
1482     glib_modules="$glib_modules gmodule-export-2.0"
1483 elif test "$plugins" = "yes"; then
1484     glib_modules="$glib_modules gmodule-no-export-2.0"
1485 fi
1486
1487 for i in $glib_modules; do
1488     if $pkg_config --atleast-version=$glib_req_ver $i; then
1489         glib_cflags=$($pkg_config --cflags $i)
1490         glib_libs=$($pkg_config --libs $i)
1491     else
1492         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
1493     fi
1494 done
1495
1496 glib_bindir="$($pkg_config --variable=bindir glib-2.0)"
1497 if test -z "$glib_bindir" ; then
1498         glib_bindir="$($pkg_config --variable=prefix glib-2.0)"/bin
1499 fi
1500
1501 # This workaround is required due to a bug in pkg-config file for glib as it
1502 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
1503
1504 if test "$static" = yes && test "$mingw32" = yes; then
1505     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
1506 fi
1507
1508 # Sanity check that the current size_t matches the
1509 # size that glib thinks it should be. This catches
1510 # problems on multi-arch where people try to build
1511 # 32-bit QEMU while pointing at 64-bit glib headers
1512 cat > $TMPC <<EOF
1513 #include <glib.h>
1514 #include <unistd.h>
1515
1516 #define QEMU_BUILD_BUG_ON(x) \
1517   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
1518
1519 int main(void) {
1520    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
1521    return 0;
1522 }
1523 EOF
1524
1525 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
1526     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
1527                "You probably need to set PKG_CONFIG_LIBDIR"\
1528                "to point to the right pkg-config files for your"\
1529                "build target"
1530 fi
1531
1532 # Silence clang warnings triggered by glib < 2.57.2
1533 cat > $TMPC << EOF
1534 #include <glib.h>
1535 typedef struct Foo {
1536     int i;
1537 } Foo;
1538 static void foo_free(Foo *f)
1539 {
1540     g_free(f);
1541 }
1542 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
1543 int main(void) { return 0; }
1544 EOF
1545 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
1546     if cc_has_warning_flag "-Wno-unused-function"; then
1547         glib_cflags="$glib_cflags -Wno-unused-function"
1548         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
1549     fi
1550 fi
1551
1552 ##########################################
1553 # fdt probe
1554
1555 case "$fdt" in
1556   auto | enabled | internal)
1557     # Simpler to always update submodule, even if not needed.
1558     git_submodules="${git_submodules} dtc"
1559     ;;
1560 esac
1561
1562 ##########################################
1563 # check and set a backend for coroutine
1564
1565 # We prefer ucontext, but it's not always possible. The fallback
1566 # is sigcontext. On Windows the only valid backend is the Windows
1567 # specific one.
1568
1569 ucontext_works=no
1570 if test "$darwin" != "yes"; then
1571   cat > $TMPC << EOF
1572 #include <ucontext.h>
1573 #ifdef __stub_makecontext
1574 #error Ignoring glibc stub makecontext which will always fail
1575 #endif
1576 int main(void) { makecontext(0, 0, 0); return 0; }
1577 EOF
1578   if compile_prog "" "" ; then
1579     ucontext_works=yes
1580   fi
1581 fi
1582
1583 if test "$coroutine" = ""; then
1584   if test "$mingw32" = "yes"; then
1585     coroutine=win32
1586   elif test "$ucontext_works" = "yes"; then
1587     coroutine=ucontext
1588   else
1589     coroutine=sigaltstack
1590   fi
1591 else
1592   case $coroutine in
1593   windows)
1594     if test "$mingw32" != "yes"; then
1595       error_exit "'windows' coroutine backend only valid for Windows"
1596     fi
1597     # Unfortunately the user visible backend name doesn't match the
1598     # coroutine-*.c filename for this case, so we have to adjust it here.
1599     coroutine=win32
1600     ;;
1601   ucontext)
1602     if test "$ucontext_works" != "yes"; then
1603       error_exit "'ucontext' backend requested but makecontext not available"
1604     fi
1605     ;;
1606   sigaltstack)
1607     if test "$mingw32" = "yes"; then
1608       error_exit "only the 'windows' coroutine backend is valid for Windows"
1609     fi
1610     ;;
1611   *)
1612     error_exit "unknown coroutine backend $coroutine"
1613     ;;
1614   esac
1615 fi
1616
1617 ##################################################
1618 # SafeStack
1619
1620
1621 if test "$safe_stack" = "yes"; then
1622 cat > $TMPC << EOF
1623 int main(void)
1624 {
1625 #if ! __has_feature(safe_stack)
1626 #error SafeStack Disabled
1627 #endif
1628     return 0;
1629 }
1630 EOF
1631   flag="-fsanitize=safe-stack"
1632   # Check that safe-stack is supported and enabled.
1633   if compile_prog "-Werror $flag" "$flag"; then
1634     # Flag needed both at compilation and at linking
1635     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1636     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1637   else
1638     error_exit "SafeStack not supported by your compiler"
1639   fi
1640   if test "$coroutine" != "ucontext"; then
1641     error_exit "SafeStack is only supported by the coroutine backend ucontext"
1642   fi
1643 else
1644 cat > $TMPC << EOF
1645 int main(void)
1646 {
1647 #if defined(__has_feature)
1648 #if __has_feature(safe_stack)
1649 #error SafeStack Enabled
1650 #endif
1651 #endif
1652     return 0;
1653 }
1654 EOF
1655 if test "$safe_stack" = "no"; then
1656   # Make sure that safe-stack is disabled
1657   if ! compile_prog "-Werror" ""; then
1658     # SafeStack was already enabled, try to explicitly remove the feature
1659     flag="-fno-sanitize=safe-stack"
1660     if ! compile_prog "-Werror $flag" "$flag"; then
1661       error_exit "Configure cannot disable SafeStack"
1662     fi
1663     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1664     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1665   fi
1666 else # "$safe_stack" = ""
1667   # Set safe_stack to yes or no based on pre-existing flags
1668   if compile_prog "-Werror" ""; then
1669     safe_stack="no"
1670   else
1671     safe_stack="yes"
1672     if test "$coroutine" != "ucontext"; then
1673       error_exit "SafeStack is only supported by the coroutine backend ucontext"
1674     fi
1675   fi
1676 fi
1677 fi
1678
1679 ########################################
1680 # check if ccache is interfering with
1681 # semantic analysis of macros
1682
1683 unset CCACHE_CPP2
1684 ccache_cpp2=no
1685 cat > $TMPC << EOF
1686 static const int Z = 1;
1687 #define fn() ({ Z; })
1688 #define TAUT(X) ((X) == Z)
1689 #define PAREN(X, Y) (X == Y)
1690 #define ID(X) (X)
1691 int main(void)
1692 {
1693     int x = 0, y = 0;
1694     x = ID(x);
1695     x = fn();
1696     fn();
1697     if (PAREN(x, y)) return 0;
1698     if (TAUT(Z)) return 0;
1699     return 0;
1700 }
1701 EOF
1702
1703 if ! compile_object "-Werror"; then
1704     ccache_cpp2=yes
1705 fi
1706
1707 #################################################
1708 # clang does not support glibc + FORTIFY_SOURCE.
1709
1710 if test "$fortify_source" != "no"; then
1711   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
1712     fortify_source="no";
1713   elif test -n "$cxx" && has $cxx &&
1714        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
1715     fortify_source="no";
1716   else
1717     fortify_source="yes"
1718   fi
1719 fi
1720
1721 ##########################################
1722 # checks for sanitizers
1723
1724 have_asan=no
1725 have_ubsan=no
1726 have_asan_iface_h=no
1727 have_asan_iface_fiber=no
1728
1729 if test "$sanitizers" = "yes" ; then
1730   write_c_skeleton
1731   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
1732       have_asan=yes
1733   fi
1734
1735   # we could use a simple skeleton for flags checks, but this also
1736   # detect the static linking issue of ubsan, see also:
1737   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
1738   cat > $TMPC << EOF
1739 #include <stdlib.h>
1740 int main(void) {
1741     void *tmp = malloc(10);
1742     if (tmp != NULL) {
1743         return *(int *)(tmp + 2);
1744     }
1745     return 1;
1746 }
1747 EOF
1748   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
1749       have_ubsan=yes
1750   fi
1751
1752   if check_include "sanitizer/asan_interface.h" ; then
1753       have_asan_iface_h=yes
1754   fi
1755
1756   cat > $TMPC << EOF
1757 #include <sanitizer/asan_interface.h>
1758 int main(void) {
1759   __sanitizer_start_switch_fiber(0, 0, 0);
1760   return 0;
1761 }
1762 EOF
1763   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
1764       have_asan_iface_fiber=yes
1765   fi
1766 fi
1767
1768 # Thread sanitizer is, for now, much noisier than the other sanitizers;
1769 # keep it separate until that is not the case.
1770 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
1771   error_exit "TSAN is not supported with other sanitiziers."
1772 fi
1773 have_tsan=no
1774 have_tsan_iface_fiber=no
1775 if test "$tsan" = "yes" ; then
1776   write_c_skeleton
1777   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1778       have_tsan=yes
1779   fi
1780   cat > $TMPC << EOF
1781 #include <sanitizer/tsan_interface.h>
1782 int main(void) {
1783   __tsan_create_fiber(0);
1784   return 0;
1785 }
1786 EOF
1787   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1788       have_tsan_iface_fiber=yes
1789   fi
1790 fi
1791
1792 ##########################################
1793 # functions to probe cross compilers
1794
1795 container="no"
1796 runc=""
1797 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1798     case $($python "$source_path"/tests/docker/docker.py probe) in
1799         *docker) container=docker ;;
1800         podman) container=podman ;;
1801         no) container=no ;;
1802     esac
1803     if test "$container" != "no"; then
1804         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1805         runc=$($python "$source_path"/tests/docker/docker.py probe)
1806     fi
1807 fi
1808
1809 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1810 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1811 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1812 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1813 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1814 : ${cross_prefix_armeb="$cross_prefix_arm"}
1815 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1816 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1817 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1818 : ${cross_prefix_i386="i686-linux-gnu-"}
1819 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1820 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1821 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1822 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1823 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1824 : ${cross_prefix_mips="mips-linux-gnu-"}
1825 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1826 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1827 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1828 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1829 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1830 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1831 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1832 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1833 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1834 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1835
1836 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1837 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1838 : ${cross_cc_armeb="$cross_cc_arm"}
1839 : ${cross_cc_cflags_armeb="-mbig-endian"}
1840 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1841 : ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
1842 : ${cross_cc_cflags_i386="-m32"}
1843 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1844 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1845 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1846 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1847 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1848 : ${cross_cc_sparc="$cross_cc_sparc64"}
1849 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1850 : ${cross_cc_cflags_x86_64="-m64"}
1851
1852 compute_target_variable() {
1853   eval "$2="
1854   if eval test -n "\"\${cross_prefix_$1}\""; then
1855     if eval has "\"\${cross_prefix_$1}\$3\""; then
1856       eval "$2=\"\${cross_prefix_$1}\$3\""
1857     fi
1858   fi
1859 }
1860
1861 have_target() {
1862   for i; do
1863     case " $target_list " in
1864       *" $i "*) return 0;;
1865       *) ;;
1866     esac
1867   done
1868   return 1
1869 }
1870
1871 # probe_target_compiler TARGET
1872 #
1873 # Look for a compiler for the given target, either native or cross.
1874 # Set variables target_* if a compiler is found, and container_cross_*
1875 # if a Docker-based cross-compiler image is known for the target.
1876 # Set got_cross_cc to yes/no depending on whether a non-container-based
1877 # compiler was found.
1878 #
1879 # If TARGET is a user-mode emulation target, also set build_static to
1880 # "y" if static linking is possible.
1881 #
1882 probe_target_compiler() {
1883   # reset all output variables
1884   got_cross_cc=no
1885   container_image=
1886   container_hosts=
1887   container_cross_cc=
1888   container_cross_ar=
1889   container_cross_as=
1890   container_cross_ld=
1891   container_cross_nm=
1892   container_cross_objcopy=
1893   container_cross_ranlib=
1894   container_cross_strip=
1895
1896   # We shall skip configuring the target compiler if the user didn't
1897   # bother enabling an appropriate guest. This avoids building
1898   # extraneous firmware images and tests.
1899   if test "${target_list#*$1}" = "$1"; then
1900       return 1
1901   fi
1902
1903   target_arch=${1%%-*}
1904   case $target_arch in
1905     aarch64) container_hosts="x86_64 aarch64" ;;
1906     alpha) container_hosts=x86_64 ;;
1907     arm) container_hosts="x86_64 aarch64" ;;
1908     cris) container_hosts=x86_64 ;;
1909     hexagon) container_hosts=x86_64 ;;
1910     hppa) container_hosts=x86_64 ;;
1911     i386) container_hosts=x86_64 ;;
1912     loongarch64) container_hosts=x86_64 ;;
1913     m68k) container_hosts=x86_64 ;;
1914     microblaze) container_hosts=x86_64 ;;
1915     mips64el) container_hosts=x86_64 ;;
1916     mips64) container_hosts=x86_64 ;;
1917     mipsel) container_hosts=x86_64 ;;
1918     mips) container_hosts=x86_64 ;;
1919     nios2) container_hosts=x86_64 ;;
1920     ppc) container_hosts=x86_64 ;;
1921     ppc64|ppc64le) container_hosts=x86_64 ;;
1922     riscv64) container_hosts=x86_64 ;;
1923     s390x) container_hosts=x86_64 ;;
1924     sh4) container_hosts=x86_64 ;;
1925     sparc64) container_hosts=x86_64 ;;
1926     tricore) container_hosts=x86_64 ;;
1927     x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1928     xtensa*) container_hosts=x86_64 ;;
1929   esac
1930
1931   for host in $container_hosts; do
1932     test "$container" != no || continue
1933     test "$host" = "$cpu" || continue
1934     case $target_arch in
1935       aarch64)
1936         # We don't have any bigendian build tools so we only use this for AArch64
1937         container_image=debian-arm64-cross
1938         container_cross_prefix=aarch64-linux-gnu-
1939         container_cross_cc=${container_cross_prefix}gcc-10
1940         ;;
1941       alpha)
1942         container_image=debian-alpha-cross
1943         container_cross_prefix=alpha-linux-gnu-
1944         ;;
1945       arm)
1946         # We don't have any bigendian build tools so we only use this for ARM
1947         container_image=debian-armhf-cross
1948         container_cross_prefix=arm-linux-gnueabihf-
1949         ;;
1950       cris)
1951         container_image=fedora-cris-cross
1952         container_cross_prefix=cris-linux-gnu-
1953         ;;
1954       hexagon)
1955         container_image=debian-hexagon-cross
1956         container_cross_prefix=hexagon-unknown-linux-musl-
1957         container_cross_cc=${container_cross_prefix}clang
1958         ;;
1959       hppa)
1960         container_image=debian-hppa-cross
1961         container_cross_prefix=hppa-linux-gnu-
1962         ;;
1963       i386)
1964         container_image=fedora-i386-cross
1965         container_cross_prefix=
1966         ;;
1967       loongarch64)
1968         container_image=debian-loongarch-cross
1969         container_cross_prefix=loongarch64-unknown-linux-gnu-
1970         ;;
1971       m68k)
1972         container_image=debian-m68k-cross
1973         container_cross_prefix=m68k-linux-gnu-
1974         ;;
1975       microblaze)
1976         container_image=debian-microblaze-cross
1977         container_cross_prefix=microblaze-linux-musl-
1978         ;;
1979       mips64el)
1980         container_image=debian-mips64el-cross
1981         container_cross_prefix=mips64el-linux-gnuabi64-
1982         ;;
1983       mips64)
1984         container_image=debian-mips64-cross
1985         container_cross_prefix=mips64-linux-gnuabi64-
1986         ;;
1987       mipsel)
1988         container_image=debian-mipsel-cross
1989         container_cross_prefix=mipsel-linux-gnu-
1990         ;;
1991       mips)
1992         container_image=debian-mips-cross
1993         container_cross_prefix=mips-linux-gnu-
1994         ;;
1995       nios2)
1996         container_image=debian-nios2-cross
1997         container_cross_prefix=nios2-linux-gnu-
1998         ;;
1999       ppc)
2000         container_image=debian-powerpc-test-cross
2001         container_cross_prefix=powerpc-linux-gnu-
2002         container_cross_cc=${container_cross_prefix}gcc-10
2003         ;;
2004       ppc64|ppc64le)
2005         container_image=debian-powerpc-test-cross
2006         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
2007         container_cross_cc=${container_cross_prefix}gcc-10
2008         ;;
2009       riscv64)
2010         container_image=debian-riscv64-test-cross
2011         container_cross_prefix=riscv64-linux-gnu-
2012         ;;
2013       s390x)
2014         container_image=debian-s390x-cross
2015         container_cross_prefix=s390x-linux-gnu-
2016         ;;
2017       sh4)
2018         container_image=debian-sh4-cross
2019         container_cross_prefix=sh4-linux-gnu-
2020         ;;
2021       sparc64)
2022         container_image=debian-sparc64-cross
2023         container_cross_prefix=sparc64-linux-gnu-
2024         ;;
2025       tricore)
2026         container_image=debian-tricore-cross
2027         container_cross_prefix=tricore-
2028         container_cross_as=tricore-as
2029         container_cross_ld=tricore-ld
2030         break
2031         ;;
2032       x86_64)
2033         container_image=debian-amd64-cross
2034         container_cross_prefix=x86_64-linux-gnu-
2035         ;;
2036       xtensa*)
2037         container_hosts=x86_64
2038         container_image=debian-xtensa-cross
2039
2040         # default to the dc232b cpu
2041         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
2042         ;;
2043     esac
2044     : ${container_cross_cc:=${container_cross_prefix}gcc}
2045     : ${container_cross_ar:=${container_cross_prefix}ar}
2046     : ${container_cross_as:=${container_cross_prefix}as}
2047     : ${container_cross_ld:=${container_cross_prefix}ld}
2048     : ${container_cross_nm:=${container_cross_prefix}nm}
2049     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
2050     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
2051     : ${container_cross_strip:=${container_cross_prefix}strip}
2052   done
2053
2054   try=cross
2055   case "$target_arch:$cpu" in
2056     aarch64_be:aarch64 | \
2057     armeb:arm | \
2058     i386:x86_64 | \
2059     mips*:mips64 | \
2060     ppc*:ppc64 | \
2061     sparc:sparc64 | \
2062     "$cpu:$cpu")
2063       try='native cross' ;;
2064   esac
2065   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
2066   for thistry in $try; do
2067     case $thistry in
2068     native)
2069       target_cc=$cc
2070       target_ccas=$ccas
2071       target_ar=$ar
2072       target_as=$as
2073       target_ld=$ld
2074       target_nm=$nm
2075       target_objcopy=$objcopy
2076       target_ranlib=$ranlib
2077       target_strip=$strip
2078       ;;
2079     cross)
2080       target_cc=
2081       if eval test -n "\"\${cross_cc_$target_arch}\""; then
2082         if eval has "\"\${cross_cc_$target_arch}\""; then
2083           eval "target_cc=\"\${cross_cc_$target_arch}\""
2084         fi
2085       else
2086         compute_target_variable $target_arch target_cc gcc
2087       fi
2088       target_ccas=$target_cc
2089       compute_target_variable $target_arch target_ar ar
2090       compute_target_variable $target_arch target_as as
2091       compute_target_variable $target_arch target_ld ld
2092       compute_target_variable $target_arch target_nm nm
2093       compute_target_variable $target_arch target_objcopy objcopy
2094       compute_target_variable $target_arch target_ranlib ranlib
2095       compute_target_variable $target_arch target_strip strip
2096       ;;
2097     esac
2098
2099     if test -n "$target_cc"; then
2100       case $target_arch in
2101         i386|x86_64)
2102           if $target_cc --version | grep -qi "clang"; then
2103             continue
2104           fi
2105           ;;
2106       esac
2107     elif test -n "$target_as" && test -n "$target_ld"; then
2108       # Special handling for assembler only targets
2109       case $target in
2110         tricore-softmmu)
2111           build_static=
2112           got_cross_cc=yes
2113           break
2114           ;;
2115         *)
2116           continue
2117           ;;
2118       esac
2119     else
2120       continue
2121     fi
2122
2123     write_c_skeleton
2124     case $1 in
2125       *-softmmu)
2126         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
2127           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
2128           got_cross_cc=yes
2129           break
2130         fi
2131         ;;
2132       *)
2133         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
2134           build_static=y
2135           got_cross_cc=yes
2136           break
2137         fi
2138         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
2139           build_static=
2140           got_cross_cc=yes
2141           break
2142         fi
2143         ;;
2144     esac
2145   done
2146   if test $got_cross_cc != yes; then
2147     build_static=
2148     target_cc=
2149     target_ccas=
2150     target_ar=
2151     target_as=
2152     target_ld=
2153     target_nm=
2154     target_objcopy=
2155     target_ranlib=
2156     target_strip=
2157   fi
2158   test -n "$target_cc"
2159 }
2160
2161 write_target_makefile() {
2162   echo "EXTRA_CFLAGS=$target_cflags"
2163   if test -z "$target_cc" && test -z "$target_as"; then
2164     test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
2165     echo "$1: docker-image-$container_image" >> Makefile.prereqs
2166     if test -n "$container_cross_cc"; then
2167       echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2168       echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2169     fi
2170     echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
2171     echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
2172     echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
2173     echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
2174     echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
2175     echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
2176     echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
2177   else
2178     if test -n "$target_cc"; then
2179       echo "CC=$target_cc"
2180       echo "CCAS=$target_ccas"
2181     fi
2182     if test -n "$target_ar"; then
2183       echo "AR=$target_ar"
2184     fi
2185     if test -n "$target_as"; then
2186       echo "AS=$target_as"
2187     fi
2188     if test -n "$target_ld"; then
2189       echo "LD=$target_ld"
2190     fi
2191     if test -n "$target_nm"; then
2192       echo "NM=$target_nm"
2193     fi
2194     if test -n "$target_objcopy"; then
2195       echo "OBJCOPY=$target_objcopy"
2196     fi
2197     if test -n "$target_ranlib"; then
2198       echo "RANLIB=$target_ranlib"
2199     fi
2200     if test -n "$target_strip"; then
2201       echo "STRIP=$target_strip"
2202     fi
2203   fi
2204 }
2205
2206 ##########################################
2207 # check for vfio_user_server
2208
2209 case "$vfio_user_server" in
2210   enabled )
2211     if test "$git_submodules_action" != "ignore"; then
2212       git_submodules="${git_submodules} subprojects/libvfio-user"
2213     fi
2214     ;;
2215 esac
2216
2217 ##########################################
2218 # End of CC checks
2219 # After here, no more $cc or $ld runs
2220
2221 write_c_skeleton
2222
2223 if test "$fortify_source" = "yes" ; then
2224   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2225 fi
2226
2227 if test "$have_asan" = "yes"; then
2228   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2229   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2230   if test "$have_asan_iface_h" = "no" ; then
2231       echo "ASAN build enabled, but ASAN header missing." \
2232            "Without code annotation, the report may be inferior."
2233   elif test "$have_asan_iface_fiber" = "no" ; then
2234       echo "ASAN build enabled, but ASAN header is too old." \
2235            "Without code annotation, the report may be inferior."
2236   fi
2237 fi
2238 if test "$have_tsan" = "yes" ; then
2239   if test "$have_tsan_iface_fiber" = "yes" ; then
2240     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2241     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2242   else
2243     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2244   fi
2245 elif test "$tsan" = "yes" ; then
2246   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2247 fi
2248 if test "$have_ubsan" = "yes"; then
2249   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2250   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2251 fi
2252
2253 #######################################
2254 # cross-compiled firmware targets
2255
2256 # Set up build tree symlinks that point back into the source tree
2257 # (these can be both files and directories).
2258 # Caution: avoid adding files or directories here using wildcards. This
2259 # will result in problems later if a new file matching the wildcard is
2260 # added to the source tree -- nothing will cause configure to be rerun
2261 # so the build tree will be missing the link back to the new file, and
2262 # tests might fail. Prefer to keep the relevant files in their own
2263 # directory and symlink the directory instead.
2264 LINKS="Makefile"
2265 LINKS="$LINKS pc-bios/optionrom/Makefile"
2266 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
2267 LINKS="$LINKS pc-bios/vof/Makefile"
2268 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
2269 LINKS="$LINKS tests/avocado tests/data"
2270 LINKS="$LINKS tests/qemu-iotests/check"
2271 LINKS="$LINKS python"
2272 LINKS="$LINKS contrib/plugins/Makefile "
2273 for f in $LINKS ; do
2274     if [ -e "$source_path/$f" ]; then
2275         mkdir -p "$(dirname ./"$f")"
2276         symlink "$source_path/$f" "$f"
2277     fi
2278 done
2279
2280 echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
2281
2282 # Mac OS X ships with a broken assembler
2283 roms=
2284 if have_target i386-softmmu x86_64-softmmu && \
2285         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2286         test "$targetos" != "haiku" && \
2287         probe_target_compiler i386-softmmu; then
2288     roms="pc-bios/optionrom"
2289     config_mak=pc-bios/optionrom/config.mak
2290     echo "# Automatically generated by configure - do not modify" > $config_mak
2291     echo "TOPSRC_DIR=$source_path" >> $config_mak
2292     write_target_makefile >> $config_mak
2293 fi
2294
2295 if have_target ppc-softmmu ppc64-softmmu && \
2296         probe_target_compiler ppc-softmmu; then
2297     roms="$roms pc-bios/vof"
2298     config_mak=pc-bios/vof/config.mak
2299     echo "# Automatically generated by configure - do not modify" > $config_mak
2300     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
2301     write_target_makefile >> $config_mak
2302 fi
2303
2304 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
2305 # (which is the lowest architecture level that Clang supports)
2306 if have_target s390x-softmmu && probe_target_compiler s390x-softmmu; then
2307   write_c_skeleton
2308   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
2309   has_z900=$?
2310   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
2311     if [ $has_z900 != 0 ]; then
2312       echo "WARNING: Your compiler does not support the z900!"
2313       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2314     fi
2315     roms="$roms pc-bios/s390-ccw"
2316     config_mak=pc-bios/s390-ccw/config-host.mak
2317     echo "# Automatically generated by configure - do not modify" > $config_mak
2318     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
2319     write_target_makefile >> $config_mak
2320     # SLOF is required for building the s390-ccw firmware on s390x,
2321     # since it is using the libnet code from SLOF for network booting.
2322     git_submodules="${git_submodules} roms/SLOF"
2323   fi
2324 fi
2325
2326 #######################################
2327 # generate config-host.mak
2328
2329 if ! (GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2330     exit 1
2331 fi
2332
2333 config_host_mak="config-host.mak"
2334
2335 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2336 echo >> $config_host_mak
2337
2338 echo all: >> $config_host_mak
2339 echo "GIT=$git" >> $config_host_mak
2340 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2341 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2342
2343 if test "$debug_tcg" = "yes" ; then
2344   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2345 fi
2346 if test "$mingw32" = "yes" ; then
2347   echo "CONFIG_WIN32=y" >> $config_host_mak
2348   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
2349   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
2350   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
2351 else
2352   echo "CONFIG_POSIX=y" >> $config_host_mak
2353 fi
2354
2355 if test "$linux" = "yes" ; then
2356   echo "CONFIG_LINUX=y" >> $config_host_mak
2357 fi
2358
2359 if test "$darwin" = "yes" ; then
2360   echo "CONFIG_DARWIN=y" >> $config_host_mak
2361 fi
2362
2363 if test "$solaris" = "yes" ; then
2364   echo "CONFIG_SOLARIS=y" >> $config_host_mak
2365 fi
2366 if test "$static" = "yes" ; then
2367   echo "CONFIG_STATIC=y" >> $config_host_mak
2368 fi
2369 echo "SRC_PATH=$source_path" >> $config_host_mak
2370 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2371 if test "$modules" = "yes"; then
2372   echo "CONFIG_MODULES=y" >> $config_host_mak
2373 fi
2374
2375 # XXX: suppress that
2376 if [ "$bsd" = "yes" ] ; then
2377   echo "CONFIG_BSD=y" >> $config_host_mak
2378 fi
2379
2380 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2381
2382 if test "$have_asan_iface_fiber" = "yes" ; then
2383     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2384 fi
2385
2386 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2387     echo "CONFIG_TSAN=y" >> $config_host_mak
2388 fi
2389
2390 if test "$plugins" = "yes" ; then
2391     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2392 fi
2393
2394 if test -n "$gdb_bin"; then
2395     gdb_version=$($gdb_bin --version | head -n 1)
2396     if version_ge ${gdb_version##* } 9.1; then
2397         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2398     else
2399         gdb_bin=""
2400     fi
2401 fi
2402
2403 if test "$container" != no; then
2404     echo "ENGINE=$container" >> $config_host_mak
2405     echo "RUNC=$runc" >> $config_host_mak
2406 fi
2407 echo "ROMS=$roms" >> $config_host_mak
2408 echo "MAKE=$make" >> $config_host_mak
2409 echo "PYTHON=$python" >> $config_host_mak
2410 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2411 echo "MESON=$meson" >> $config_host_mak
2412 echo "NINJA=$ninja" >> $config_host_mak
2413 echo "CC=$cc" >> $config_host_mak
2414 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2415 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2416 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2417 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2418 echo "GLIB_BINDIR=$glib_bindir" >> $config_host_mak
2419 echo "GLIB_VERSION=$($pkg_config --modversion glib-2.0)" >> $config_host_mak
2420 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2421 echo "EXESUF=$EXESUF" >> $config_host_mak
2422
2423 # use included Linux headers
2424 if test "$linux" = "yes" ; then
2425   mkdir -p linux-headers
2426   case "$cpu" in
2427   i386|x86_64)
2428     linux_arch=x86
2429     ;;
2430   ppc|ppc64)
2431     linux_arch=powerpc
2432     ;;
2433   s390x)
2434     linux_arch=s390
2435     ;;
2436   aarch64)
2437     linux_arch=arm64
2438     ;;
2439   loongarch*)
2440     linux_arch=loongarch
2441     ;;
2442   mips64)
2443     linux_arch=mips
2444     ;;
2445   *)
2446     # For most CPUs the kernel architecture name and QEMU CPU name match.
2447     linux_arch="$cpu"
2448     ;;
2449   esac
2450     # For non-KVM architectures we will not have asm headers
2451     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2452       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2453     fi
2454 fi
2455
2456 for target in $target_list; do
2457     target_dir="$target"
2458     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2459     mkdir -p "$target_dir"
2460     case $target in
2461         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2462         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2463     esac
2464 done
2465
2466 if test "$default_targets" = "yes"; then
2467   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2468 fi
2469
2470 if test "$ccache_cpp2" = "yes"; then
2471   echo "export CCACHE_CPP2=y" >> $config_host_mak
2472 fi
2473
2474 if test "$safe_stack" = "yes"; then
2475   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
2476 fi
2477
2478 # tests/tcg configuration
2479 (config_host_mak=tests/tcg/config-host.mak
2480 mkdir -p tests/tcg
2481 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2482 echo "SRC_PATH=$source_path" >> $config_host_mak
2483 echo "HOST_CC=$host_cc" >> $config_host_mak
2484
2485 # versioned checked in the main config_host.mak above
2486 if test -n "$gdb_bin"; then
2487     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2488 fi
2489 if test "$plugins" = "yes" ; then
2490     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2491 fi
2492
2493 tcg_tests_targets=
2494 for target in $target_list; do
2495   arch=${target%%-*}
2496
2497   case $target in
2498     xtensa*-linux-user)
2499       # the toolchain is not complete with headers, only build softmmu tests
2500       continue
2501       ;;
2502     *-softmmu)
2503       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
2504       qemu="qemu-system-$arch"
2505       ;;
2506     *-linux-user|*-bsd-user)
2507       qemu="qemu-$arch"
2508       ;;
2509   esac
2510
2511   if probe_target_compiler $target || test -n "$container_image"; then
2512       test -n "$container_image" && build_static=y
2513       mkdir -p "tests/tcg/$target"
2514       config_target_mak=tests/tcg/$target/config-target.mak
2515       ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
2516       echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
2517       echo "TARGET_NAME=$arch" >> "$config_target_mak"
2518       echo "TARGET=$target" >> "$config_target_mak"
2519       write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
2520       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
2521       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
2522       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
2523       tcg_tests_targets="$tcg_tests_targets $target"
2524   fi
2525 done
2526
2527 if test "$tcg" = "enabled"; then
2528     echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
2529 fi
2530 )
2531
2532 if test "$skip_meson" = no; then
2533   cross="config-meson.cross.new"
2534   meson_quote() {
2535     test $# = 0 && return
2536     echo "'$(echo $* | sed "s/ /','/g")'"
2537   }
2538
2539   echo "# Automatically generated by configure - do not modify" > $cross
2540   echo "[properties]" >> $cross
2541
2542   # unroll any custom device configs
2543   for a in $device_archs; do
2544       eval "c=\$devices_${a}"
2545       echo "${a}-softmmu = '$c'" >> $cross
2546   done
2547
2548   echo "[built-in options]" >> $cross
2549   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2550   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2551   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2552   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2553   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2554   echo "[binaries]" >> $cross
2555   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2556   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2557   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2558   echo "ar = [$(meson_quote $ar)]" >> $cross
2559   echo "nm = [$(meson_quote $nm)]" >> $cross
2560   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
2561   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2562   if has $sdl2_config; then
2563     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2564   fi
2565   echo "strip = [$(meson_quote $strip)]" >> $cross
2566   echo "widl = [$(meson_quote $widl)]" >> $cross
2567   echo "windres = [$(meson_quote $windres)]" >> $cross
2568   echo "windmc = [$(meson_quote $windmc)]" >> $cross
2569   if test "$cross_compile" = "yes"; then
2570     cross_arg="--cross-file config-meson.cross"
2571     echo "[host_machine]" >> $cross
2572     echo "system = '$targetos'" >> $cross
2573     case "$cpu" in
2574         i386)
2575             echo "cpu_family = 'x86'" >> $cross
2576             ;;
2577         *)
2578             echo "cpu_family = '$cpu'" >> $cross
2579             ;;
2580     esac
2581     echo "cpu = '$cpu'" >> $cross
2582     if test "$bigendian" = "yes" ; then
2583         echo "endian = 'big'" >> $cross
2584     else
2585         echo "endian = 'little'" >> $cross
2586     fi
2587   else
2588     cross_arg="--native-file config-meson.cross"
2589   fi
2590   mv $cross config-meson.cross
2591
2592   rm -rf meson-private meson-info meson-logs
2593
2594   # Built-in options
2595   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2596   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2597   test "$pie" = no && meson_option_add -Db_pie=false
2598   test "$werror" = yes && meson_option_add -Dwerror=true
2599
2600   # QEMU options
2601   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2602   test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2603   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2604   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2605   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2606   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2607   test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server"
2608   run_meson() {
2609     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2610   }
2611   eval run_meson $meson_options
2612   if test "$?" -ne 0 ; then
2613       error_exit "meson setup failed"
2614   fi
2615 fi
2616
2617 # Save the configure command line for later reuse.
2618 cat <<EOD >config.status
2619 #!/bin/sh
2620 # Generated by configure.
2621 # Run this file to recreate the current configuration.
2622 # Compiler output produced by configure, useful for debugging
2623 # configure, is in config.log if it exists.
2624 EOD
2625
2626 preserve_env() {
2627     envname=$1
2628
2629     eval envval=\$$envname
2630
2631     if test -n "$envval"
2632     then
2633         echo "$envname='$envval'" >> config.status
2634         echo "export $envname" >> config.status
2635     else
2636         echo "unset $envname" >> config.status
2637     fi
2638 }
2639
2640 # Preserve various env variables that influence what
2641 # features/build target configure will detect
2642 preserve_env AR
2643 preserve_env AS
2644 preserve_env CC
2645 preserve_env CFLAGS
2646 preserve_env CXX
2647 preserve_env CXXFLAGS
2648 preserve_env LD
2649 preserve_env LDFLAGS
2650 preserve_env LD_LIBRARY_PATH
2651 preserve_env MAKE
2652 preserve_env NM
2653 preserve_env OBJCFLAGS
2654 preserve_env OBJCOPY
2655 preserve_env PATH
2656 preserve_env PKG_CONFIG
2657 preserve_env PKG_CONFIG_LIBDIR
2658 preserve_env PKG_CONFIG_PATH
2659 preserve_env PYTHON
2660 preserve_env QEMU_GA_MANUFACTURER
2661 preserve_env QEMU_GA_DISTRO
2662 preserve_env QEMU_GA_VERSION
2663 preserve_env SDL2_CONFIG
2664 preserve_env SMBD
2665 preserve_env STRIP
2666 preserve_env WIDL
2667 preserve_env WINDRES
2668 preserve_env WINDMC
2669
2670 printf "exec" >>config.status
2671 for i in "$0" "$@"; do
2672   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2673 done
2674 echo ' "$@"' >>config.status
2675 chmod +x config.status
2676
2677 rm -r "$TMPDIR1"