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 add_to warn_flags -Wthread-safety
1234
1235 nowarn_flags=
1236 add_to nowarn_flags -Wno-initializer-overrides
1237 add_to nowarn_flags -Wno-missing-include-dirs
1238 add_to nowarn_flags -Wno-shift-negative-value
1239 add_to nowarn_flags -Wno-string-plus-int
1240 add_to nowarn_flags -Wno-typedef-redefinition
1241 add_to nowarn_flags -Wno-tautological-type-limit-compare
1242 add_to nowarn_flags -Wno-psabi
1243 add_to nowarn_flags -Wno-gnu-variable-sized-type-not-at-end
1244
1245 gcc_flags="$warn_flags $nowarn_flags"
1246
1247 cc_has_warning_flag() {
1248     write_c_skeleton;
1249
1250     # Use the positive sense of the flag when testing for -Wno-wombat
1251     # support (gcc will happily accept the -Wno- form of unknown
1252     # warning options).
1253     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1254     compile_prog "-Werror $optflag" ""
1255 }
1256
1257 objcc_has_warning_flag() {
1258     cat > $TMPM <<EOF
1259 int main(void) { return 0; }
1260 EOF
1261
1262     # Use the positive sense of the flag when testing for -Wno-wombat
1263     # support (gcc will happily accept the -Wno- form of unknown
1264     # warning options).
1265     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1266     do_objc -Werror $optflag \
1267       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1268       -o $TMPE $TMPM $QEMU_LDFLAGS
1269 }
1270
1271 for flag in $gcc_flags; do
1272     if cc_has_warning_flag $flag ; then
1273         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1274     fi
1275     if objcc_has_warning_flag $flag ; then
1276         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1277     fi
1278 done
1279
1280 if test "$stack_protector" != "no"; then
1281   cat > $TMPC << EOF
1282 int main(int argc, char *argv[])
1283 {
1284     char arr[64], *p = arr, *c = argv[argc - 1];
1285     while (*c) {
1286         *p++ = *c++;
1287     }
1288     return 0;
1289 }
1290 EOF
1291   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1292   sp_on=0
1293   for flag in $gcc_flags; do
1294     # We need to check both a compile and a link, since some compiler
1295     # setups fail only on a .c->.o compile and some only at link time
1296     if compile_object "-Werror $flag" &&
1297        compile_prog "-Werror $flag" ""; then
1298       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1299       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1300       sp_on=1
1301       break
1302     fi
1303   done
1304   if test "$stack_protector" = yes; then
1305     if test $sp_on = 0; then
1306       error_exit "Stack protector not supported"
1307     fi
1308   fi
1309 fi
1310
1311 # Our module code doesn't support Windows
1312 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1313   error_exit "Modules are not available for Windows"
1314 fi
1315
1316 # Static linking is not possible with plugins, modules or PIE
1317 if test "$static" = "yes" ; then
1318   if test "$modules" = "yes" ; then
1319     error_exit "static and modules are mutually incompatible"
1320   fi
1321   if test "$plugins" = "yes"; then
1322     error_exit "static and plugins are mutually incompatible"
1323   else
1324     plugins="no"
1325   fi
1326 fi
1327 test "$plugins" = "" && plugins=yes
1328
1329 cat > $TMPC << EOF
1330
1331 #ifdef __linux__
1332 #  define THREAD __thread
1333 #else
1334 #  define THREAD
1335 #endif
1336 static THREAD int tls_var;
1337 int main(void) { return tls_var; }
1338 EOF
1339
1340 # Meson currently only handles pie as a boolean for now so if we have
1341 # explicitly disabled PIE we need to extend our cflags because it wont.
1342 if test "$static" = "yes"; then
1343   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1344     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1345     pie="yes"
1346   elif test "$pie" = "yes"; then
1347     error_exit "-static-pie not available due to missing toolchain support"
1348   else
1349     pie="no"
1350     QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1351   fi
1352 elif test "$pie" = "no"; then
1353   if compile_prog "-Werror -fno-pie" "-no-pie"; then
1354     CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS"
1355     CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS"
1356     QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1357   fi
1358 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1359   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1360   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1361   pie="yes"
1362 elif test "$pie" = "yes"; then
1363   error_exit "PIE not available due to missing toolchain support"
1364 else
1365   echo "Disabling PIE due to missing toolchain support"
1366   pie="no"
1367 fi
1368
1369 ##########################################
1370 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1371 # use i686 as default anyway, but for those that don't, an explicit
1372 # specification is necessary
1373
1374 if test "$cpu" = "i386"; then
1375   cat > $TMPC << EOF
1376 static int sfaa(int *ptr)
1377 {
1378   return __sync_fetch_and_and(ptr, 0);
1379 }
1380
1381 int main(void)
1382 {
1383   int val = 42;
1384   val = __sync_val_compare_and_swap(&val, 0, 1);
1385   sfaa(&val);
1386   return val;
1387 }
1388 EOF
1389   if ! compile_prog "" "" ; then
1390     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1391   fi
1392 fi
1393
1394 if test -z "${target_list+xxx}" ; then
1395     default_targets=yes
1396     for target in $default_target_list; do
1397         target_list="$target_list $target"
1398     done
1399     target_list="${target_list# }"
1400 else
1401     default_targets=no
1402     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1403     for target in $target_list; do
1404         # Check that we recognised the target name; this allows a more
1405         # friendly error message than if we let it fall through.
1406         case " $default_target_list " in
1407             *" $target "*)
1408                 ;;
1409             *)
1410                 error_exit "Unknown target name '$target'"
1411                 ;;
1412         esac
1413     done
1414 fi
1415
1416 # see if system emulation was really requested
1417 case " $target_list " in
1418   *"-softmmu "*) softmmu=yes
1419   ;;
1420   *) softmmu=no
1421   ;;
1422 esac
1423
1424 if test "$tcg" = "auto"; then
1425   if test -z "$target_list"; then
1426     tcg="disabled"
1427   else
1428     tcg="enabled"
1429   fi
1430 fi
1431
1432 if test "$tcg" = "enabled"; then
1433     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1434     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1435 fi
1436
1437 ##########################################
1438 # big/little endian test
1439 cat > $TMPC << EOF
1440 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1441 # error LITTLE
1442 #endif
1443 int main(void) { return 0; }
1444 EOF
1445
1446 if ! compile_prog ; then
1447   bigendian="no"
1448 else
1449   cat > $TMPC << EOF
1450 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1451 # error BIG
1452 #endif
1453 int main(void) { return 0; }
1454 EOF
1455
1456   if ! compile_prog ; then
1457     bigendian="yes"
1458   else
1459     echo big/little test failed
1460     exit 1
1461   fi
1462 fi
1463
1464 ##########################################
1465 # pkg-config probe
1466
1467 if ! has "$pkg_config_exe"; then
1468   error_exit "pkg-config binary '$pkg_config_exe' not found"
1469 fi
1470
1471 ##########################################
1472 # glib support probe
1473
1474 # When bumping glib_req_ver, please check also whether we should increase
1475 # the _WIN32_WINNT setting in osdep.h according to the value from glib
1476 glib_req_ver=2.56
1477 glib_modules=gthread-2.0
1478 if test "$modules" = yes; then
1479     glib_modules="$glib_modules gmodule-export-2.0"
1480 elif test "$plugins" = "yes"; then
1481     glib_modules="$glib_modules gmodule-no-export-2.0"
1482 fi
1483
1484 for i in $glib_modules; do
1485     if $pkg_config --atleast-version=$glib_req_ver $i; then
1486         glib_cflags=$($pkg_config --cflags $i)
1487         glib_libs=$($pkg_config --libs $i)
1488     else
1489         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
1490     fi
1491 done
1492
1493 glib_bindir="$($pkg_config --variable=bindir glib-2.0)"
1494 if test -z "$glib_bindir" ; then
1495         glib_bindir="$($pkg_config --variable=prefix glib-2.0)"/bin
1496 fi
1497
1498 # This workaround is required due to a bug in pkg-config file for glib as it
1499 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
1500
1501 if test "$static" = yes && test "$mingw32" = yes; then
1502     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
1503 fi
1504
1505 # Sanity check that the current size_t matches the
1506 # size that glib thinks it should be. This catches
1507 # problems on multi-arch where people try to build
1508 # 32-bit QEMU while pointing at 64-bit glib headers
1509 cat > $TMPC <<EOF
1510 #include <glib.h>
1511 #include <unistd.h>
1512
1513 #define QEMU_BUILD_BUG_ON(x) \
1514   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
1515
1516 int main(void) {
1517    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
1518    return 0;
1519 }
1520 EOF
1521
1522 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
1523     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
1524                "You probably need to set PKG_CONFIG_LIBDIR"\
1525                "to point to the right pkg-config files for your"\
1526                "build target"
1527 fi
1528
1529 # Silence clang warnings triggered by glib < 2.57.2
1530 cat > $TMPC << EOF
1531 #include <glib.h>
1532 typedef struct Foo {
1533     int i;
1534 } Foo;
1535 static void foo_free(Foo *f)
1536 {
1537     g_free(f);
1538 }
1539 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
1540 int main(void) { return 0; }
1541 EOF
1542 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
1543     if cc_has_warning_flag "-Wno-unused-function"; then
1544         glib_cflags="$glib_cflags -Wno-unused-function"
1545         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
1546     fi
1547 fi
1548
1549 ##########################################
1550 # fdt probe
1551
1552 case "$fdt" in
1553   auto | enabled | internal)
1554     # Simpler to always update submodule, even if not needed.
1555     git_submodules="${git_submodules} dtc"
1556     ;;
1557 esac
1558
1559 ##########################################
1560 # check and set a backend for coroutine
1561
1562 # We prefer ucontext, but it's not always possible. The fallback
1563 # is sigcontext. On Windows the only valid backend is the Windows
1564 # specific one.
1565
1566 ucontext_works=no
1567 if test "$darwin" != "yes"; then
1568   cat > $TMPC << EOF
1569 #include <ucontext.h>
1570 #ifdef __stub_makecontext
1571 #error Ignoring glibc stub makecontext which will always fail
1572 #endif
1573 int main(void) { makecontext(0, 0, 0); return 0; }
1574 EOF
1575   if compile_prog "" "" ; then
1576     ucontext_works=yes
1577   fi
1578 fi
1579
1580 if test "$coroutine" = ""; then
1581   if test "$mingw32" = "yes"; then
1582     coroutine=win32
1583   elif test "$ucontext_works" = "yes"; then
1584     coroutine=ucontext
1585   else
1586     coroutine=sigaltstack
1587   fi
1588 else
1589   case $coroutine in
1590   windows)
1591     if test "$mingw32" != "yes"; then
1592       error_exit "'windows' coroutine backend only valid for Windows"
1593     fi
1594     # Unfortunately the user visible backend name doesn't match the
1595     # coroutine-*.c filename for this case, so we have to adjust it here.
1596     coroutine=win32
1597     ;;
1598   ucontext)
1599     if test "$ucontext_works" != "yes"; then
1600       error_exit "'ucontext' backend requested but makecontext not available"
1601     fi
1602     ;;
1603   sigaltstack)
1604     if test "$mingw32" = "yes"; then
1605       error_exit "only the 'windows' coroutine backend is valid for Windows"
1606     fi
1607     ;;
1608   *)
1609     error_exit "unknown coroutine backend $coroutine"
1610     ;;
1611   esac
1612 fi
1613
1614 ##################################################
1615 # SafeStack
1616
1617
1618 if test "$safe_stack" = "yes"; then
1619 cat > $TMPC << EOF
1620 int main(void)
1621 {
1622 #if ! __has_feature(safe_stack)
1623 #error SafeStack Disabled
1624 #endif
1625     return 0;
1626 }
1627 EOF
1628   flag="-fsanitize=safe-stack"
1629   # Check that safe-stack is supported and enabled.
1630   if compile_prog "-Werror $flag" "$flag"; then
1631     # Flag needed both at compilation and at linking
1632     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1633     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1634   else
1635     error_exit "SafeStack not supported by your compiler"
1636   fi
1637   if test "$coroutine" != "ucontext"; then
1638     error_exit "SafeStack is only supported by the coroutine backend ucontext"
1639   fi
1640 else
1641 cat > $TMPC << EOF
1642 int main(void)
1643 {
1644 #if defined(__has_feature)
1645 #if __has_feature(safe_stack)
1646 #error SafeStack Enabled
1647 #endif
1648 #endif
1649     return 0;
1650 }
1651 EOF
1652 if test "$safe_stack" = "no"; then
1653   # Make sure that safe-stack is disabled
1654   if ! compile_prog "-Werror" ""; then
1655     # SafeStack was already enabled, try to explicitly remove the feature
1656     flag="-fno-sanitize=safe-stack"
1657     if ! compile_prog "-Werror $flag" "$flag"; then
1658       error_exit "Configure cannot disable SafeStack"
1659     fi
1660     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1661     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1662   fi
1663 else # "$safe_stack" = ""
1664   # Set safe_stack to yes or no based on pre-existing flags
1665   if compile_prog "-Werror" ""; then
1666     safe_stack="no"
1667   else
1668     safe_stack="yes"
1669     if test "$coroutine" != "ucontext"; then
1670       error_exit "SafeStack is only supported by the coroutine backend ucontext"
1671     fi
1672   fi
1673 fi
1674 fi
1675
1676 ########################################
1677 # check if ccache is interfering with
1678 # semantic analysis of macros
1679
1680 unset CCACHE_CPP2
1681 ccache_cpp2=no
1682 cat > $TMPC << EOF
1683 static const int Z = 1;
1684 #define fn() ({ Z; })
1685 #define TAUT(X) ((X) == Z)
1686 #define PAREN(X, Y) (X == Y)
1687 #define ID(X) (X)
1688 int main(void)
1689 {
1690     int x = 0, y = 0;
1691     x = ID(x);
1692     x = fn();
1693     fn();
1694     if (PAREN(x, y)) return 0;
1695     if (TAUT(Z)) return 0;
1696     return 0;
1697 }
1698 EOF
1699
1700 if ! compile_object "-Werror"; then
1701     ccache_cpp2=yes
1702 fi
1703
1704 #################################################
1705 # clang does not support glibc + FORTIFY_SOURCE.
1706
1707 if test "$fortify_source" != "no"; then
1708   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
1709     fortify_source="no";
1710   elif test -n "$cxx" && has $cxx &&
1711        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
1712     fortify_source="no";
1713   else
1714     fortify_source="yes"
1715   fi
1716 fi
1717
1718 ##########################################
1719 # checks for sanitizers
1720
1721 have_asan=no
1722 have_ubsan=no
1723 have_asan_iface_h=no
1724 have_asan_iface_fiber=no
1725
1726 if test "$sanitizers" = "yes" ; then
1727   write_c_skeleton
1728   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
1729       have_asan=yes
1730   fi
1731
1732   # we could use a simple skeleton for flags checks, but this also
1733   # detect the static linking issue of ubsan, see also:
1734   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
1735   cat > $TMPC << EOF
1736 #include <stdlib.h>
1737 int main(void) {
1738     void *tmp = malloc(10);
1739     if (tmp != NULL) {
1740         return *(int *)(tmp + 2);
1741     }
1742     return 1;
1743 }
1744 EOF
1745   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
1746       have_ubsan=yes
1747   fi
1748
1749   if check_include "sanitizer/asan_interface.h" ; then
1750       have_asan_iface_h=yes
1751   fi
1752
1753   cat > $TMPC << EOF
1754 #include <sanitizer/asan_interface.h>
1755 int main(void) {
1756   __sanitizer_start_switch_fiber(0, 0, 0);
1757   return 0;
1758 }
1759 EOF
1760   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
1761       have_asan_iface_fiber=yes
1762   fi
1763 fi
1764
1765 # Thread sanitizer is, for now, much noisier than the other sanitizers;
1766 # keep it separate until that is not the case.
1767 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
1768   error_exit "TSAN is not supported with other sanitiziers."
1769 fi
1770 have_tsan=no
1771 have_tsan_iface_fiber=no
1772 if test "$tsan" = "yes" ; then
1773   write_c_skeleton
1774   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1775       have_tsan=yes
1776   fi
1777   cat > $TMPC << EOF
1778 #include <sanitizer/tsan_interface.h>
1779 int main(void) {
1780   __tsan_create_fiber(0);
1781   return 0;
1782 }
1783 EOF
1784   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1785       have_tsan_iface_fiber=yes
1786   fi
1787 fi
1788
1789 ##########################################
1790 # functions to probe cross compilers
1791
1792 container="no"
1793 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1794     case $($python "$source_path"/tests/docker/docker.py probe) in
1795         *docker) container=docker ;;
1796         podman) container=podman ;;
1797         no) container=no ;;
1798     esac
1799     if test "$container" != "no"; then
1800         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1801     fi
1802 fi
1803
1804 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1805 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1806 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1807 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1808 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1809 : ${cross_prefix_armeb="$cross_prefix_arm"}
1810 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1811 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1812 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1813 : ${cross_prefix_i386="i686-linux-gnu-"}
1814 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1815 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1816 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1817 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1818 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1819 : ${cross_prefix_mips="mips-linux-gnu-"}
1820 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1821 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1822 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1823 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1824 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1825 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1826 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1827 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1828 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1829 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1830
1831 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1832 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1833 : ${cross_cc_armeb="$cross_cc_arm"}
1834 : ${cross_cc_cflags_armeb="-mbig-endian"}
1835 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1836 : ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
1837 : ${cross_cc_cflags_i386="-m32"}
1838 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1839 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1840 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1841 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1842 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1843 : ${cross_cc_sparc="$cross_cc_sparc64"}
1844 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1845 : ${cross_cc_cflags_x86_64="-m64"}
1846
1847 compute_target_variable() {
1848   eval "$2="
1849   if eval test -n "\"\${cross_prefix_$1}\""; then
1850     if eval has "\"\${cross_prefix_$1}\$3\""; then
1851       eval "$2=\"\${cross_prefix_$1}\$3\""
1852     fi
1853   fi
1854 }
1855
1856 have_target() {
1857   for i; do
1858     case " $target_list " in
1859       *" $i "*) return 0;;
1860       *) ;;
1861     esac
1862   done
1863   return 1
1864 }
1865
1866 # probe_target_compiler TARGET
1867 #
1868 # Look for a compiler for the given target, either native or cross.
1869 # Set variables target_* if a compiler is found, and container_cross_*
1870 # if a Docker-based cross-compiler image is known for the target.
1871 # Set got_cross_cc to yes/no depending on whether a non-container-based
1872 # compiler was found.
1873 #
1874 # If TARGET is a user-mode emulation target, also set build_static to
1875 # "y" if static linking is possible.
1876 #
1877 probe_target_compiler() {
1878   # reset all output variables
1879   got_cross_cc=no
1880   container_image=
1881   container_hosts=
1882   container_cross_cc=
1883   container_cross_ar=
1884   container_cross_as=
1885   container_cross_ld=
1886   container_cross_nm=
1887   container_cross_objcopy=
1888   container_cross_ranlib=
1889   container_cross_strip=
1890
1891   # We shall skip configuring the target compiler if the user didn't
1892   # bother enabling an appropriate guest. This avoids building
1893   # extraneous firmware images and tests.
1894   if test "${target_list#*$1}" = "$1"; then
1895       return 1
1896   fi
1897
1898   target_arch=${1%%-*}
1899   case $target_arch in
1900     aarch64) container_hosts="x86_64 aarch64" ;;
1901     alpha) container_hosts=x86_64 ;;
1902     arm) container_hosts="x86_64 aarch64" ;;
1903     cris) container_hosts=x86_64 ;;
1904     hexagon) container_hosts=x86_64 ;;
1905     hppa) container_hosts=x86_64 ;;
1906     i386) container_hosts=x86_64 ;;
1907     loongarch64) container_hosts=x86_64 ;;
1908     m68k) container_hosts=x86_64 ;;
1909     microblaze) container_hosts=x86_64 ;;
1910     mips64el) container_hosts=x86_64 ;;
1911     mips64) container_hosts=x86_64 ;;
1912     mipsel) container_hosts=x86_64 ;;
1913     mips) container_hosts=x86_64 ;;
1914     nios2) container_hosts=x86_64 ;;
1915     ppc) container_hosts=x86_64 ;;
1916     ppc64|ppc64le) container_hosts=x86_64 ;;
1917     riscv64) container_hosts=x86_64 ;;
1918     s390x) container_hosts=x86_64 ;;
1919     sh4) container_hosts=x86_64 ;;
1920     sparc64) container_hosts=x86_64 ;;
1921     tricore) container_hosts=x86_64 ;;
1922     x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1923     xtensa*) container_hosts=x86_64 ;;
1924   esac
1925
1926   for host in $container_hosts; do
1927     test "$container" != no || continue
1928     test "$host" = "$cpu" || continue
1929     case $target_arch in
1930       aarch64)
1931         # We don't have any bigendian build tools so we only use this for AArch64
1932         container_image=debian-arm64-cross
1933         container_cross_prefix=aarch64-linux-gnu-
1934         container_cross_cc=${container_cross_prefix}gcc-10
1935         ;;
1936       alpha)
1937         container_image=debian-alpha-cross
1938         container_cross_prefix=alpha-linux-gnu-
1939         ;;
1940       arm)
1941         # We don't have any bigendian build tools so we only use this for ARM
1942         container_image=debian-armhf-cross
1943         container_cross_prefix=arm-linux-gnueabihf-
1944         ;;
1945       cris)
1946         container_image=fedora-cris-cross
1947         container_cross_prefix=cris-linux-gnu-
1948         ;;
1949       hexagon)
1950         container_image=debian-hexagon-cross
1951         container_cross_prefix=hexagon-unknown-linux-musl-
1952         container_cross_cc=${container_cross_prefix}clang
1953         ;;
1954       hppa)
1955         container_image=debian-hppa-cross
1956         container_cross_prefix=hppa-linux-gnu-
1957         ;;
1958       i386)
1959         container_image=fedora-i386-cross
1960         container_cross_prefix=
1961         ;;
1962       loongarch64)
1963         container_image=debian-loongarch-cross
1964         container_cross_prefix=loongarch64-unknown-linux-gnu-
1965         ;;
1966       m68k)
1967         container_image=debian-m68k-cross
1968         container_cross_prefix=m68k-linux-gnu-
1969         ;;
1970       microblaze)
1971         container_image=debian-microblaze-cross
1972         container_cross_prefix=microblaze-linux-musl-
1973         ;;
1974       mips64el)
1975         container_image=debian-mips64el-cross
1976         container_cross_prefix=mips64el-linux-gnuabi64-
1977         ;;
1978       mips64)
1979         container_image=debian-mips64-cross
1980         container_cross_prefix=mips64-linux-gnuabi64-
1981         ;;
1982       mipsel)
1983         container_image=debian-mipsel-cross
1984         container_cross_prefix=mipsel-linux-gnu-
1985         ;;
1986       mips)
1987         container_image=debian-mips-cross
1988         container_cross_prefix=mips-linux-gnu-
1989         ;;
1990       nios2)
1991         container_image=debian-nios2-cross
1992         container_cross_prefix=nios2-linux-gnu-
1993         ;;
1994       ppc)
1995         container_image=debian-powerpc-test-cross
1996         container_cross_prefix=powerpc-linux-gnu-
1997         container_cross_cc=${container_cross_prefix}gcc-10
1998         ;;
1999       ppc64|ppc64le)
2000         container_image=debian-powerpc-test-cross
2001         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
2002         container_cross_cc=${container_cross_prefix}gcc-10
2003         ;;
2004       riscv64)
2005         container_image=debian-riscv64-test-cross
2006         container_cross_prefix=riscv64-linux-gnu-
2007         ;;
2008       s390x)
2009         container_image=debian-s390x-cross
2010         container_cross_prefix=s390x-linux-gnu-
2011         ;;
2012       sh4)
2013         container_image=debian-sh4-cross
2014         container_cross_prefix=sh4-linux-gnu-
2015         ;;
2016       sparc64)
2017         container_image=debian-sparc64-cross
2018         container_cross_prefix=sparc64-linux-gnu-
2019         ;;
2020       tricore)
2021         container_image=debian-tricore-cross
2022         container_cross_prefix=tricore-
2023         container_cross_as=tricore-as
2024         container_cross_ld=tricore-ld
2025         break
2026         ;;
2027       x86_64)
2028         container_image=debian-amd64-cross
2029         container_cross_prefix=x86_64-linux-gnu-
2030         ;;
2031       xtensa*)
2032         container_hosts=x86_64
2033         container_image=debian-xtensa-cross
2034
2035         # default to the dc232b cpu
2036         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
2037         ;;
2038     esac
2039     : ${container_cross_cc:=${container_cross_prefix}gcc}
2040     : ${container_cross_ar:=${container_cross_prefix}ar}
2041     : ${container_cross_as:=${container_cross_prefix}as}
2042     : ${container_cross_ld:=${container_cross_prefix}ld}
2043     : ${container_cross_nm:=${container_cross_prefix}nm}
2044     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
2045     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
2046     : ${container_cross_strip:=${container_cross_prefix}strip}
2047   done
2048
2049   try=cross
2050   case "$target_arch:$cpu" in
2051     aarch64_be:aarch64 | \
2052     armeb:arm | \
2053     i386:x86_64 | \
2054     mips*:mips64 | \
2055     ppc*:ppc64 | \
2056     sparc:sparc64 | \
2057     "$cpu:$cpu")
2058       try='native cross' ;;
2059   esac
2060   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
2061   for thistry in $try; do
2062     case $thistry in
2063     native)
2064       target_cc=$cc
2065       target_ccas=$ccas
2066       target_ar=$ar
2067       target_as=$as
2068       target_ld=$ld
2069       target_nm=$nm
2070       target_objcopy=$objcopy
2071       target_ranlib=$ranlib
2072       target_strip=$strip
2073       ;;
2074     cross)
2075       target_cc=
2076       if eval test -n "\"\${cross_cc_$target_arch}\""; then
2077         if eval has "\"\${cross_cc_$target_arch}\""; then
2078           eval "target_cc=\"\${cross_cc_$target_arch}\""
2079         fi
2080       else
2081         compute_target_variable $target_arch target_cc gcc
2082       fi
2083       target_ccas=$target_cc
2084       compute_target_variable $target_arch target_ar ar
2085       compute_target_variable $target_arch target_as as
2086       compute_target_variable $target_arch target_ld ld
2087       compute_target_variable $target_arch target_nm nm
2088       compute_target_variable $target_arch target_objcopy objcopy
2089       compute_target_variable $target_arch target_ranlib ranlib
2090       compute_target_variable $target_arch target_strip strip
2091       ;;
2092     esac
2093
2094     if test -n "$target_cc"; then
2095       case $target_arch in
2096         i386|x86_64)
2097           if $target_cc --version | grep -qi "clang"; then
2098             continue
2099           fi
2100           ;;
2101       esac
2102     elif test -n "$target_as" && test -n "$target_ld"; then
2103       # Special handling for assembler only targets
2104       case $target in
2105         tricore-softmmu)
2106           build_static=
2107           got_cross_cc=yes
2108           break
2109           ;;
2110         *)
2111           continue
2112           ;;
2113       esac
2114     else
2115       continue
2116     fi
2117
2118     write_c_skeleton
2119     case $1 in
2120       *-softmmu)
2121         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
2122           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
2123           got_cross_cc=yes
2124           break
2125         fi
2126         ;;
2127       *)
2128         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
2129           build_static=y
2130           got_cross_cc=yes
2131           break
2132         fi
2133         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
2134           build_static=
2135           got_cross_cc=yes
2136           break
2137         fi
2138         ;;
2139     esac
2140   done
2141   if test $got_cross_cc != yes; then
2142     build_static=
2143     target_cc=
2144     target_ccas=
2145     target_ar=
2146     target_as=
2147     target_ld=
2148     target_nm=
2149     target_objcopy=
2150     target_ranlib=
2151     target_strip=
2152   fi
2153   test -n "$target_cc"
2154 }
2155
2156 write_target_makefile() {
2157   echo "EXTRA_CFLAGS=$target_cflags"
2158   if test -z "$target_cc" && test -z "$target_as"; then
2159     test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
2160     echo "$1: docker-image-$container_image" >> Makefile.prereqs
2161     if test -n "$container_cross_cc"; then
2162       echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2163       echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2164     fi
2165     echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
2166     echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
2167     echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
2168     echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
2169     echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
2170     echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
2171     echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
2172   else
2173     if test -n "$target_cc"; then
2174       echo "CC=$target_cc"
2175       echo "CCAS=$target_ccas"
2176     fi
2177     if test -n "$target_ar"; then
2178       echo "AR=$target_ar"
2179     fi
2180     if test -n "$target_as"; then
2181       echo "AS=$target_as"
2182     fi
2183     if test -n "$target_ld"; then
2184       echo "LD=$target_ld"
2185     fi
2186     if test -n "$target_nm"; then
2187       echo "NM=$target_nm"
2188     fi
2189     if test -n "$target_objcopy"; then
2190       echo "OBJCOPY=$target_objcopy"
2191     fi
2192     if test -n "$target_ranlib"; then
2193       echo "RANLIB=$target_ranlib"
2194     fi
2195     if test -n "$target_strip"; then
2196       echo "STRIP=$target_strip"
2197     fi
2198   fi
2199 }
2200
2201 ##########################################
2202 # check for vfio_user_server
2203
2204 case "$vfio_user_server" in
2205   enabled )
2206     if test "$git_submodules_action" != "ignore"; then
2207       git_submodules="${git_submodules} subprojects/libvfio-user"
2208     fi
2209     ;;
2210 esac
2211
2212 ##########################################
2213 # End of CC checks
2214 # After here, no more $cc or $ld runs
2215
2216 write_c_skeleton
2217
2218 if test "$fortify_source" = "yes" ; then
2219   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2220 fi
2221
2222 if test "$have_asan" = "yes"; then
2223   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2224   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2225   if test "$have_asan_iface_h" = "no" ; then
2226       echo "ASAN build enabled, but ASAN header missing." \
2227            "Without code annotation, the report may be inferior."
2228   elif test "$have_asan_iface_fiber" = "no" ; then
2229       echo "ASAN build enabled, but ASAN header is too old." \
2230            "Without code annotation, the report may be inferior."
2231   fi
2232 fi
2233 if test "$have_tsan" = "yes" ; then
2234   if test "$have_tsan_iface_fiber" = "yes" ; then
2235     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2236     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2237   else
2238     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2239   fi
2240 elif test "$tsan" = "yes" ; then
2241   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2242 fi
2243 if test "$have_ubsan" = "yes"; then
2244   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2245   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2246 fi
2247
2248 #######################################
2249 # cross-compiled firmware targets
2250
2251 # Set up build tree symlinks that point back into the source tree
2252 # (these can be both files and directories).
2253 # Caution: avoid adding files or directories here using wildcards. This
2254 # will result in problems later if a new file matching the wildcard is
2255 # added to the source tree -- nothing will cause configure to be rerun
2256 # so the build tree will be missing the link back to the new file, and
2257 # tests might fail. Prefer to keep the relevant files in their own
2258 # directory and symlink the directory instead.
2259 LINKS="Makefile"
2260 LINKS="$LINKS pc-bios/optionrom/Makefile"
2261 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
2262 LINKS="$LINKS pc-bios/vof/Makefile"
2263 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
2264 LINKS="$LINKS tests/avocado tests/data"
2265 LINKS="$LINKS tests/qemu-iotests/check"
2266 LINKS="$LINKS python"
2267 LINKS="$LINKS contrib/plugins/Makefile "
2268 for f in $LINKS ; do
2269     if [ -e "$source_path/$f" ]; then
2270         mkdir -p "$(dirname ./"$f")"
2271         symlink "$source_path/$f" "$f"
2272     fi
2273 done
2274
2275 echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
2276
2277 # Mac OS X ships with a broken assembler
2278 roms=
2279 if have_target i386-softmmu x86_64-softmmu && \
2280         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2281         test "$targetos" != "haiku" && \
2282         probe_target_compiler i386-softmmu; then
2283     roms="pc-bios/optionrom"
2284     config_mak=pc-bios/optionrom/config.mak
2285     echo "# Automatically generated by configure - do not modify" > $config_mak
2286     echo "TOPSRC_DIR=$source_path" >> $config_mak
2287     write_target_makefile >> $config_mak
2288 fi
2289
2290 if have_target ppc-softmmu ppc64-softmmu && \
2291         probe_target_compiler ppc-softmmu; then
2292     roms="$roms pc-bios/vof"
2293     config_mak=pc-bios/vof/config.mak
2294     echo "# Automatically generated by configure - do not modify" > $config_mak
2295     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
2296     write_target_makefile >> $config_mak
2297 fi
2298
2299 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
2300 # (which is the lowest architecture level that Clang supports)
2301 if have_target s390x-softmmu && probe_target_compiler s390x-softmmu; then
2302   write_c_skeleton
2303   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
2304   has_z900=$?
2305   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
2306     if [ $has_z900 != 0 ]; then
2307       echo "WARNING: Your compiler does not support the z900!"
2308       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2309     fi
2310     roms="$roms pc-bios/s390-ccw"
2311     config_mak=pc-bios/s390-ccw/config-host.mak
2312     echo "# Automatically generated by configure - do not modify" > $config_mak
2313     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
2314     write_target_makefile >> $config_mak
2315     # SLOF is required for building the s390-ccw firmware on s390x,
2316     # since it is using the libnet code from SLOF for network booting.
2317     git_submodules="${git_submodules} roms/SLOF"
2318   fi
2319 fi
2320
2321 #######################################
2322 # generate config-host.mak
2323
2324 if ! (GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2325     exit 1
2326 fi
2327
2328 config_host_mak="config-host.mak"
2329
2330 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2331 echo >> $config_host_mak
2332
2333 echo all: >> $config_host_mak
2334 echo "GIT=$git" >> $config_host_mak
2335 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2336 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2337
2338 if test "$debug_tcg" = "yes" ; then
2339   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2340 fi
2341 if test "$mingw32" = "yes" ; then
2342   echo "CONFIG_WIN32=y" >> $config_host_mak
2343   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
2344   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
2345   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
2346 else
2347   echo "CONFIG_POSIX=y" >> $config_host_mak
2348 fi
2349
2350 if test "$linux" = "yes" ; then
2351   echo "CONFIG_LINUX=y" >> $config_host_mak
2352 fi
2353
2354 if test "$darwin" = "yes" ; then
2355   echo "CONFIG_DARWIN=y" >> $config_host_mak
2356 fi
2357
2358 if test "$solaris" = "yes" ; then
2359   echo "CONFIG_SOLARIS=y" >> $config_host_mak
2360 fi
2361 if test "$static" = "yes" ; then
2362   echo "CONFIG_STATIC=y" >> $config_host_mak
2363 fi
2364 echo "SRC_PATH=$source_path" >> $config_host_mak
2365 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2366 if test "$modules" = "yes"; then
2367   echo "CONFIG_MODULES=y" >> $config_host_mak
2368 fi
2369
2370 # XXX: suppress that
2371 if [ "$bsd" = "yes" ] ; then
2372   echo "CONFIG_BSD=y" >> $config_host_mak
2373 fi
2374
2375 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2376
2377 if test "$have_asan_iface_fiber" = "yes" ; then
2378     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2379 fi
2380
2381 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2382     echo "CONFIG_TSAN=y" >> $config_host_mak
2383 fi
2384
2385 if test "$plugins" = "yes" ; then
2386     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2387 fi
2388
2389 if test -n "$gdb_bin"; then
2390     gdb_version=$($gdb_bin --version | head -n 1)
2391     if version_ge ${gdb_version##* } 9.1; then
2392         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2393     else
2394         gdb_bin=""
2395     fi
2396 fi
2397
2398 if test "$container" != no; then
2399     echo "ENGINE=$container" >> $config_host_mak
2400 fi
2401 echo "ROMS=$roms" >> $config_host_mak
2402 echo "MAKE=$make" >> $config_host_mak
2403 echo "PYTHON=$python" >> $config_host_mak
2404 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2405 echo "MESON=$meson" >> $config_host_mak
2406 echo "NINJA=$ninja" >> $config_host_mak
2407 echo "CC=$cc" >> $config_host_mak
2408 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2409 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2410 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2411 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2412 echo "GLIB_BINDIR=$glib_bindir" >> $config_host_mak
2413 echo "GLIB_VERSION=$($pkg_config --modversion glib-2.0)" >> $config_host_mak
2414 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2415 echo "EXESUF=$EXESUF" >> $config_host_mak
2416
2417 # use included Linux headers
2418 if test "$linux" = "yes" ; then
2419   mkdir -p linux-headers
2420   case "$cpu" in
2421   i386|x86_64)
2422     linux_arch=x86
2423     ;;
2424   ppc|ppc64)
2425     linux_arch=powerpc
2426     ;;
2427   s390x)
2428     linux_arch=s390
2429     ;;
2430   aarch64)
2431     linux_arch=arm64
2432     ;;
2433   loongarch*)
2434     linux_arch=loongarch
2435     ;;
2436   mips64)
2437     linux_arch=mips
2438     ;;
2439   *)
2440     # For most CPUs the kernel architecture name and QEMU CPU name match.
2441     linux_arch="$cpu"
2442     ;;
2443   esac
2444     # For non-KVM architectures we will not have asm headers
2445     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2446       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2447     fi
2448 fi
2449
2450 for target in $target_list; do
2451     target_dir="$target"
2452     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2453     mkdir -p "$target_dir"
2454     case $target in
2455         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2456         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2457     esac
2458 done
2459
2460 if test "$default_targets" = "yes"; then
2461   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2462 fi
2463
2464 if test "$ccache_cpp2" = "yes"; then
2465   echo "export CCACHE_CPP2=y" >> $config_host_mak
2466 fi
2467
2468 if test "$safe_stack" = "yes"; then
2469   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
2470 fi
2471
2472 # tests/tcg configuration
2473 (config_host_mak=tests/tcg/config-host.mak
2474 mkdir -p tests/tcg
2475 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2476 echo "SRC_PATH=$source_path" >> $config_host_mak
2477 echo "HOST_CC=$host_cc" >> $config_host_mak
2478
2479 # versioned checked in the main config_host.mak above
2480 if test -n "$gdb_bin"; then
2481     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2482 fi
2483 if test "$plugins" = "yes" ; then
2484     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2485 fi
2486
2487 tcg_tests_targets=
2488 for target in $target_list; do
2489   arch=${target%%-*}
2490
2491   case $target in
2492     xtensa*-linux-user)
2493       # the toolchain is not complete with headers, only build softmmu tests
2494       continue
2495       ;;
2496     *-softmmu)
2497       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
2498       qemu="qemu-system-$arch"
2499       ;;
2500     *-linux-user|*-bsd-user)
2501       qemu="qemu-$arch"
2502       ;;
2503   esac
2504
2505   if probe_target_compiler $target || test -n "$container_image"; then
2506       test -n "$container_image" && build_static=y
2507       mkdir -p "tests/tcg/$target"
2508       config_target_mak=tests/tcg/$target/config-target.mak
2509       ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
2510       echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
2511       echo "TARGET_NAME=$arch" >> "$config_target_mak"
2512       echo "TARGET=$target" >> "$config_target_mak"
2513       write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
2514       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
2515       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
2516       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
2517       tcg_tests_targets="$tcg_tests_targets $target"
2518   fi
2519 done
2520
2521 if test "$tcg" = "enabled"; then
2522     echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
2523 fi
2524 )
2525
2526 if test "$skip_meson" = no; then
2527   cross="config-meson.cross.new"
2528   meson_quote() {
2529     test $# = 0 && return
2530     echo "'$(echo $* | sed "s/ /','/g")'"
2531   }
2532
2533   echo "# Automatically generated by configure - do not modify" > $cross
2534   echo "[properties]" >> $cross
2535
2536   # unroll any custom device configs
2537   for a in $device_archs; do
2538       eval "c=\$devices_${a}"
2539       echo "${a}-softmmu = '$c'" >> $cross
2540   done
2541
2542   echo "[built-in options]" >> $cross
2543   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2544   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2545   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2546   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2547   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2548   echo "[binaries]" >> $cross
2549   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2550   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2551   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2552   echo "ar = [$(meson_quote $ar)]" >> $cross
2553   echo "nm = [$(meson_quote $nm)]" >> $cross
2554   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
2555   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2556   if has $sdl2_config; then
2557     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2558   fi
2559   echo "strip = [$(meson_quote $strip)]" >> $cross
2560   echo "widl = [$(meson_quote $widl)]" >> $cross
2561   echo "windres = [$(meson_quote $windres)]" >> $cross
2562   echo "windmc = [$(meson_quote $windmc)]" >> $cross
2563   if test "$cross_compile" = "yes"; then
2564     cross_arg="--cross-file config-meson.cross"
2565     echo "[host_machine]" >> $cross
2566     echo "system = '$targetos'" >> $cross
2567     case "$cpu" in
2568         i386)
2569             echo "cpu_family = 'x86'" >> $cross
2570             ;;
2571         *)
2572             echo "cpu_family = '$cpu'" >> $cross
2573             ;;
2574     esac
2575     echo "cpu = '$cpu'" >> $cross
2576     if test "$bigendian" = "yes" ; then
2577         echo "endian = 'big'" >> $cross
2578     else
2579         echo "endian = 'little'" >> $cross
2580     fi
2581   else
2582     cross_arg="--native-file config-meson.cross"
2583   fi
2584   mv $cross config-meson.cross
2585
2586   rm -rf meson-private meson-info meson-logs
2587
2588   # Built-in options
2589   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2590   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2591   test "$pie" = no && meson_option_add -Db_pie=false
2592   test "$werror" = yes && meson_option_add -Dwerror=true
2593
2594   # QEMU options
2595   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2596   test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2597   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2598   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2599   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2600   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2601   test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server"
2602   run_meson() {
2603     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2604   }
2605   eval run_meson $meson_options
2606   if test "$?" -ne 0 ; then
2607       error_exit "meson setup failed"
2608   fi
2609 fi
2610
2611 # Save the configure command line for later reuse.
2612 cat <<EOD >config.status
2613 #!/bin/sh
2614 # Generated by configure.
2615 # Run this file to recreate the current configuration.
2616 # Compiler output produced by configure, useful for debugging
2617 # configure, is in config.log if it exists.
2618 EOD
2619
2620 preserve_env() {
2621     envname=$1
2622
2623     eval envval=\$$envname
2624
2625     if test -n "$envval"
2626     then
2627         echo "$envname='$envval'" >> config.status
2628         echo "export $envname" >> config.status
2629     else
2630         echo "unset $envname" >> config.status
2631     fi
2632 }
2633
2634 # Preserve various env variables that influence what
2635 # features/build target configure will detect
2636 preserve_env AR
2637 preserve_env AS
2638 preserve_env CC
2639 preserve_env CFLAGS
2640 preserve_env CXX
2641 preserve_env CXXFLAGS
2642 preserve_env LD
2643 preserve_env LDFLAGS
2644 preserve_env LD_LIBRARY_PATH
2645 preserve_env MAKE
2646 preserve_env NM
2647 preserve_env OBJCFLAGS
2648 preserve_env OBJCOPY
2649 preserve_env PATH
2650 preserve_env PKG_CONFIG
2651 preserve_env PKG_CONFIG_LIBDIR
2652 preserve_env PKG_CONFIG_PATH
2653 preserve_env PYTHON
2654 preserve_env QEMU_GA_MANUFACTURER
2655 preserve_env QEMU_GA_DISTRO
2656 preserve_env QEMU_GA_VERSION
2657 preserve_env SDL2_CONFIG
2658 preserve_env SMBD
2659 preserve_env STRIP
2660 preserve_env WIDL
2661 preserve_env WINDRES
2662 preserve_env WINDMC
2663
2664 printf "exec" >>config.status
2665 for i in "$0" "$@"; do
2666   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2667 done
2668 echo ' "$@"' >>config.status
2669 chmod +x config.status
2670
2671 rm -r "$TMPDIR1"