configure

   1 #!/bin/sh
   2 #
   3 # qemu configure script (c) 2003 Fabrice Bellard
   4 #
   5
   6 # Unset some variables known to interfere with behavior of common tools,
   7 # just as autoconf does.
   8 CLICOLOR_FORCE= GREP_OPTIONS=
   9 unset CLICOLOR_FORCE GREP_OPTIONS
  10
  11 # Don't allow CCACHE, if present, to use cached results of compile tests!
  12 export CCACHE_RECACHE=yes
  13
  14 # make source path absolute
  15 source_path=$(cd "$(dirname -- "$0")"; pwd)
  16
  17 if test "$PWD" = "$source_path"
  18 then
  19     echo "Using './build' as the directory for build output"
  20
  21     MARKER=build/auto-created-by-configure
  22
  23     if test -e build
  24     then
  25         if test -f $MARKER
  26         then
  27            rm -rf build
  28         else
  29             echo "ERROR: ./build dir already exists and was not previously created by configure"
  30             exit 1
  31         fi
  32     fi
  33
  34     mkdir build
  35     touch $MARKER
  36
  37     cat > GNUmakefile <<'EOF'
  38 # This file is auto-generated by configure to support in-source tree
  39 # 'make' command invocation
  40
  41 ifeq ($(MAKECMDGOALS),)
  42 recurse: all
  43 endif
  44
  45 .NOTPARALLEL: %
  46 %: force
  47         @echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
  48         @$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
  49         @if test "$(MAKECMDGOALS)" = "distclean" && \
  50             test -e build/auto-created-by-configure ; \
  51         then \
  52             rm -rf build GNUmakefile ; \
  53         fi
  54 force: ;
  55 .PHONY: force
  56 GNUmakefile: ;
  57
  58 EOF
  59     cd build
  60     exec "$source_path/configure" "$@"
  61 fi
  62
  63 # Temporary directory used for files created while
  64 # configure runs. Since it is in the build directory
  65 # we can safely blow away any previous version of it
  66 # (and we need not jump through hoops to try to delete
  67 # it when configure exits.)
  68 TMPDIR1="config-temp"
  69 rm -rf "${TMPDIR1}"
  70 if ! mkdir -p "${TMPDIR1}"; then
  71     echo "ERROR: failed to create temporary directory"
  72     exit 1
  73 fi
  74
  75 TMPB="qemu-conf"
  76 TMPC="${TMPDIR1}/${TMPB}.c"
  77 TMPO="${TMPDIR1}/${TMPB}.o"
  78 TMPM="${TMPDIR1}/${TMPB}.m"
  79 TMPE="${TMPDIR1}/${TMPB}.exe"
  80
  81 rm -f config.log
  82
  83 # Print a helpful header at the top of config.log
  84 echo "# QEMU configure log $(date)" >> config.log
  85 printf "# Configured with:" >> config.log
  86 printf " '%s'" "$0" "$@" >> config.log
  87 echo >> config.log
  88 echo "#" >> config.log
  89
  90 quote_sh() {
  91     printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
  92 }
  93
  94 print_error() {
  95     (echo
  96     echo "ERROR: $1"
  97     while test -n "$2"; do
  98         echo "       $2"
  99         shift
 100     done
 101     echo) >&2
 102 }
 103
 104 error_exit() {
 105     print_error "$@"
 106     exit 1
 107 }
 108
 109 do_compiler() {
 110   # Run the compiler, capturing its output to the log. First argument
 111   # is compiler binary to execute.
 112   compiler="$1"
 113   shift
 114   if test -n "$BASH_VERSION"; then eval '
 115       echo >>config.log "
 116 funcs: ${FUNCNAME[*]}
 117 lines: ${BASH_LINENO[*]}"
 118   '; fi
 119   echo $compiler "$@" >> config.log
 120   $compiler "$@" >> config.log 2>&1 || return $?
 121 }
 122
 123 do_compiler_werror() {
 124     # Run the compiler, capturing its output to the log. First argument
 125     # is compiler binary to execute.
 126     compiler="$1"
 127     shift
 128     if test -n "$BASH_VERSION"; then eval '
 129         echo >>config.log "
 130 funcs: ${FUNCNAME[*]}
 131 lines: ${BASH_LINENO[*]}"
 132     '; fi
 133     echo $compiler "$@" >> config.log
 134     $compiler "$@" >> config.log 2>&1 || return $?
 135     # Test passed. If this is an --enable-werror build, rerun
 136     # the test with -Werror and bail out if it fails. This
 137     # makes warning-generating-errors in configure test code
 138     # obvious to developers.
 139     if test "$werror" != "yes"; then
 140         return 0
 141     fi
 142     # Don't bother rerunning the compile if we were already using -Werror
 143     case "$*" in
 144         *-Werror*)
 145            return 0
 146         ;;
 147     esac
 148     echo $compiler -Werror "$@" >> config.log
 149     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 150     error_exit "configure test passed without -Werror but failed with -Werror." \
 151         "This is probably a bug in the configure script. The failing command" \
 152         "will be at the bottom of config.log." \
 153         "You can run configure with --disable-werror to bypass this check."
 154 }
 155
 156 do_cc() {
 157     do_compiler_werror "$cc" $CPU_CFLAGS "$@"
 158 }
 159
 160 do_objc() {
 161     do_compiler_werror "$objcc" $CPU_CFLAGS "$@"
 162 }
 163
 164 # Append $2 to the variable named $1, with space separation
 165 add_to() {
 166     eval $1=\${$1:+\"\$$1 \"}\$2
 167 }
 168
 169 compile_object() {
 170   local_cflags="$1"
 171   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 172 }
 173
 174 compile_prog() {
 175   local_cflags="$1"
 176   local_ldflags="$2"
 177   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 178       $LDFLAGS $EXTRA_LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 179 }
 180
 181 # symbolically link $1 to $2.  Portable version of "ln -sf".
 182 symlink() {
 183   rm -rf "$2"
 184   mkdir -p "$(dirname "$2")"
 185   ln -s "$1" "$2"
 186 }
 187
 188 # check whether a command is available to this shell (may be either an
 189 # executable or a builtin)
 190 has() {
 191     type "$1" >/dev/null 2>&1
 192 }
 193
 194 version_ge () {
 195     local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
 196     local_ver2=$(echo "$2" | tr . ' ')
 197     while true; do
 198         set x $local_ver1
 199         local_first=${2-0}
 200         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 201         shift ${2:+2}
 202         local_ver1=$*
 203         set x $local_ver2
 204         # the second argument finished, the first must be greater or equal
 205         test $# = 1 && return 0
 206         test $local_first -lt $2 && return 1
 207         test $local_first -gt $2 && return 0
 208         shift ${2:+2}
 209         local_ver2=$*
 210     done
 211 }
 212
 213 glob() {
 214     eval test -z '"${1#'"$2"'}"'
 215 }
 216
 217 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 218 then
 219   error_exit "main directory cannot contain spaces nor colons"
 220 fi
 221
 222 # default parameters
 223 cpu=""
 224 static="no"
 225 cross_compile="no"
 226 cross_prefix=""
 227 host_cc="cc"
 228 stack_protector=""
 229 safe_stack=""
 230 use_containers="yes"
 231 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 232
 233 if test -e "$source_path/.git"
 234 then
 235     git_submodules_action="update"
 236 else
 237     git_submodules_action="ignore"
 238 fi
 239
 240 git_submodules="ui/keycodemapdb"
 241 git="git"
 242
 243 # Don't accept a target_list environment variable.
 244 unset target_list
 245 unset target_list_exclude
 246
 247 # Default value for a variable defining feature "foo".
 248 #  * foo="no"  feature will only be used if --enable-foo arg is given
 249 #  * foo=""    feature will be searched for, and if found, will be used
 250 #              unless --disable-foo is given
 251 #  * foo="yes" this value will only be set by --enable-foo flag.
 252 #              feature will searched for,
 253 #              if not found, configure exits with error
 254 #
 255 # Always add --enable-foo and --disable-foo command line args.
 256 # Distributions want to ensure that several features are compiled in, and it
 257 # is impossible without a --enable-foo that exits if a feature is not found.
 258
 259 default_feature=""
 260 # parse CC options second
 261 for opt do
 262   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 263   case "$opt" in
 264       --without-default-features)
 265           default_feature="no"
 266   ;;
 267   esac
 268 done
 269
 270 EXTRA_CFLAGS=""
 271 EXTRA_CXXFLAGS=""
 272 EXTRA_OBJCFLAGS=""
 273 EXTRA_LDFLAGS=""
 274
 275 debug_tcg="no"
 276 sanitizers="no"
 277 tsan="no"
 278 fortify_source="yes"
 279 EXESUF=""
 280 modules="no"
 281 prefix="/usr/local"
 282 qemu_suffix="qemu"
 283 softmmu="yes"
 284 linux_user=""
 285 bsd_user=""
 286 pie=""
 287 coroutine=""
 288 plugins="$default_feature"
 289 meson=""
 290 ninja=""
 291 bindir="bin"
 292 skip_meson=no
 293 vfio_user_server="disabled"
 294
 295 # The following Meson options are handled manually (still they
 296 # are included in the automatically generated help message)
 297
 298 # 1. Track which submodules are needed
 299 fdt="auto"
 300
 301 # 2. Automatically enable/disable other options
 302 tcg="auto"
 303 cfi="false"
 304
 305 # parse CC options second
 306 for opt do
 307   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 308   case "$opt" in
 309   --cross-prefix=*) cross_prefix="$optarg"
 310                     cross_compile="yes"
 311   ;;
 312   --cc=*) CC="$optarg"
 313   ;;
 314   --cxx=*) CXX="$optarg"
 315   ;;
 316   --cpu=*) cpu="$optarg"
 317   ;;
 318   --extra-cflags=*)
 319     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 320     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 321     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 322     ;;
 323   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 324   ;;
 325   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 326   ;;
 327   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 328   ;;
 329   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 330   ;;
 331   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 332                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 333   ;;
 334   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 335                 eval "cross_cc_${cc_arch}=\$optarg"
 336   ;;
 337   --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
 338   ;;
 339   --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
 340                     eval "cross_prefix_${cc_arch}=\$optarg"
 341   ;;
 342   esac
 343 done
 344 # OS specific
 345 # Using uname is really, really broken.  Once we have the right set of checks
 346 # we can eliminate its usage altogether.
 347
 348 # Preferred compiler:
 349 #  ${CC} (if set)
 350 #  ${cross_prefix}gcc (if cross-prefix specified)
 351 #  system compiler
 352 if test -z "${CC}${cross_prefix}"; then
 353   cc="$host_cc"
 354 else
 355   cc="${CC-${cross_prefix}gcc}"
 356 fi
 357
 358 if test -z "${CXX}${cross_prefix}"; then
 359   cxx="c++"
 360 else
 361   cxx="${CXX-${cross_prefix}g++}"
 362 fi
 363
 364 ar="${AR-${cross_prefix}ar}"
 365 as="${AS-${cross_prefix}as}"
 366 ccas="${CCAS-$cc}"
 367 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 368 ld="${LD-${cross_prefix}ld}"
 369 ranlib="${RANLIB-${cross_prefix}ranlib}"
 370 nm="${NM-${cross_prefix}nm}"
 371 smbd="$SMBD"
 372 strip="${STRIP-${cross_prefix}strip}"
 373 widl="${WIDL-${cross_prefix}widl}"
 374 windres="${WINDRES-${cross_prefix}windres}"
 375 windmc="${WINDMC-${cross_prefix}windmc}"
 376 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 377 query_pkg_config() {
 378     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 379 }
 380 pkg_config=query_pkg_config
 381 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 382
 383 # default flags for all hosts
 384 # We use -fwrapv to tell the compiler that we require a C dialect where
 385 # left shift of signed integers is well defined and has the expected
 386 # 2s-complement style results. (Both clang and gcc agree that it
 387 # provides these semantics.)
 388 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 389 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 390 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 391 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 392
 393 QEMU_LDFLAGS=
 394
 395 # Flags that are needed during configure but later taken care of by Meson
 396 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 397 CONFIGURE_LDFLAGS=
 398
 399
 400 check_define() {
 401 cat > $TMPC <<EOF
 402 #if !defined($1)
 403 #error $1 not defined
 404 #endif
 405 int main(void) { return 0; }
 406 EOF
 407   compile_object
 408 }
 409
 410 check_include() {
 411 cat > $TMPC <<EOF
 412 #include <$1>
 413 int main(void) { return 0; }
 414 EOF
 415   compile_object
 416 }
 417
 418 write_c_skeleton() {
 419     cat > $TMPC <<EOF
 420 int main(void) { return 0; }
 421 EOF
 422 }
 423
 424 if check_define __linux__ ; then
 425   targetos=linux
 426 elif check_define _WIN32 ; then
 427   targetos=windows
 428 elif check_define __OpenBSD__ ; then
 429   targetos=openbsd
 430 elif check_define __sun__ ; then
 431   targetos=sunos
 432 elif check_define __HAIKU__ ; then
 433   targetos=haiku
 434 elif check_define __FreeBSD__ ; then
 435   targetos=freebsd
 436 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 437   targetos=gnu/kfreebsd
 438 elif check_define __DragonFly__ ; then
 439   targetos=dragonfly
 440 elif check_define __NetBSD__; then
 441   targetos=netbsd
 442 elif check_define __APPLE__; then
 443   targetos=darwin
 444 else
 445   # This is a fatal error, but don't report it yet, because we
 446   # might be going to just print the --help text, or it might
 447   # be the result of a missing compiler.
 448   targetos=bogus
 449 fi
 450
 451 # OS specific
 452
 453 mingw32="no"
 454 bsd="no"
 455 linux="no"
 456 solaris="no"
 457 case $targetos in
 458 windows)
 459   mingw32="yes"
 460   plugins="no"
 461   pie="no"
 462 ;;
 463 gnu/kfreebsd)
 464   bsd="yes"
 465 ;;
 466 freebsd)
 467   bsd="yes"
 468   make="${MAKE-gmake}"
 469   # needed for kinfo_getvmmap(3) in libutil.h
 470 ;;
 471 dragonfly)
 472   bsd="yes"
 473   make="${MAKE-gmake}"
 474 ;;
 475 netbsd)
 476   bsd="yes"
 477   make="${MAKE-gmake}"
 478 ;;
 479 openbsd)
 480   bsd="yes"
 481   make="${MAKE-gmake}"
 482 ;;
 483 darwin)
 484   bsd="yes"
 485   darwin="yes"
 486   # Disable attempts to use ObjectiveC features in os/object.h since they
 487   # won't work when we're compiling with gcc as a C compiler.
 488   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 489 ;;
 490 sunos)
 491   solaris="yes"
 492   make="${MAKE-gmake}"
 493 # needed for CMSG_ macros in sys/socket.h
 494   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 495 # needed for TIOCWIN* defines in termios.h
 496   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 497   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 498   # Note that this check is broken for cross-compilation: if you're
 499   # cross-compiling to one of these OSes then you'll need to specify
 500   # the correct CPU with the --cpu option.
 501   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 502     cpu="x86_64"
 503   fi
 504 ;;
 505 haiku)
 506   pie="no"
 507   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 508 ;;
 509 linux)
 510   linux="yes"
 511 ;;
 512 esac
 513
 514 if test ! -z "$cpu" ; then
 515   # command line argument
 516   :
 517 elif check_define __i386__ ; then
 518   cpu="i386"
 519 elif check_define __x86_64__ ; then
 520   if check_define __ILP32__ ; then
 521     cpu="x32"
 522   else
 523     cpu="x86_64"
 524   fi
 525 elif check_define __sparc__ ; then
 526   if check_define __arch64__ ; then
 527     cpu="sparc64"
 528   else
 529     cpu="sparc"
 530   fi
 531 elif check_define _ARCH_PPC ; then
 532   if check_define _ARCH_PPC64 ; then
 533     if check_define _LITTLE_ENDIAN ; then
 534       cpu="ppc64le"
 535     else
 536       cpu="ppc64"
 537     fi
 538   else
 539     cpu="ppc"
 540   fi
 541 elif check_define __mips__ ; then
 542   cpu="mips"
 543 elif check_define __s390__ ; then
 544   if check_define __s390x__ ; then
 545     cpu="s390x"
 546   else
 547     cpu="s390"
 548   fi
 549 elif check_define __riscv ; then
 550   cpu="riscv"
 551 elif check_define __arm__ ; then
 552   cpu="arm"
 553 elif check_define __aarch64__ ; then
 554   cpu="aarch64"
 555 elif check_define __loongarch64 ; then
 556   cpu="loongarch64"
 557 else
 558   cpu=$(uname -m)
 559 fi
 560
 561 # Normalise host CPU name, set multilib cflags
 562 # Note that this case should only have supported host CPUs, not guests.
 563 case "$cpu" in
 564   armv*b|armv*l|arm)
 565     cpu="arm" ;;
 566
 567   i386|i486|i586|i686|i86pc|BePC)
 568     cpu="i386"
 569     CPU_CFLAGS="-m32" ;;
 570   x32)
 571     cpu="x86_64"
 572     CPU_CFLAGS="-mx32" ;;
 573   x86_64|amd64)
 574     cpu="x86_64"
 575     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 576     # If we truly care, we should simply detect this case at
 577     # runtime and generate the fallback to serial emulation.
 578     CPU_CFLAGS="-m64 -mcx16" ;;
 579
 580   mips*)
 581     cpu="mips" ;;
 582
 583   ppc)
 584     CPU_CFLAGS="-m32" ;;
 585   ppc64)
 586     CPU_CFLAGS="-m64 -mbig-endian" ;;
 587   ppc64le)
 588     cpu="ppc64"
 589     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 590
 591   s390)
 592     CPU_CFLAGS="-m31" ;;
 593   s390x)
 594     CPU_CFLAGS="-m64" ;;
 595
 596   sparc|sun4[cdmuv])
 597     cpu="sparc"
 598     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 599   sparc64)
 600     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 601 esac
 602
 603 : ${make=${MAKE-make}}
 604
 605 # We prefer python 3.x. A bare 'python' is traditionally
 606 # python 2.x, but some distros have it as python 3.x, so
 607 # we check that too
 608 python=
 609 explicit_python=no
 610 for binary in "${PYTHON-python3}" python
 611 do
 612     if has "$binary"
 613     then
 614         python=$(command -v "$binary")
 615         break
 616     fi
 617 done
 618
 619
 620 # Check for ancillary tools used in testing
 621 genisoimage=
 622 for binary in genisoimage mkisofs
 623 do
 624     if has $binary
 625     then
 626         genisoimage=$(command -v "$binary")
 627         break
 628     fi
 629 done
 630
 631 # Default objcc to clang if available, otherwise use CC
 632 if has clang; then
 633   objcc=clang
 634 else
 635   objcc="$cc"
 636 fi
 637
 638 if test "$mingw32" = "yes" ; then
 639   EXESUF=".exe"
 640   # MinGW needs -mthreads for TLS and macro _MT.
 641   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 642   write_c_skeleton;
 643   prefix="/qemu"
 644   bindir=""
 645   qemu_suffix=""
 646 fi
 647
 648 werror=""
 649
 650 meson_option_build_array() {
 651   printf '['
 652   (if test "$targetos" = windows; then
 653     IFS=\;
 654   else
 655     IFS=:
 656   fi
 657   for e in $1; do
 658     printf '"""'
 659     # backslash escape any '\' and '"' characters
 660     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
 661     printf '""",'
 662   done)
 663   printf ']\n'
 664 }
 665
 666 . "$source_path/scripts/meson-buildoptions.sh"
 667
 668 meson_options=
 669 meson_option_add() {
 670   meson_options="$meson_options $(quote_sh "$1")"
 671 }
 672 meson_option_parse() {
 673   meson_options="$meson_options $(_meson_option_parse "$@")"
 674   if test $? -eq 1; then
 675     echo "ERROR: unknown option $1"
 676     echo "Try '$0 --help' for more information"
 677     exit 1
 678   fi
 679 }
 680
 681 for opt do
 682   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 683   case "$opt" in
 684   --help|-h) show_help=yes
 685   ;;
 686   --version|-V) exec cat "$source_path/VERSION"
 687   ;;
 688   --prefix=*) prefix="$optarg"
 689   ;;
 690   --cross-prefix=*)
 691   ;;
 692   --cc=*)
 693   ;;
 694   --host-cc=*) host_cc="$optarg"
 695   ;;
 696   --cxx=*)
 697   ;;
 698   --objcc=*) objcc="$optarg"
 699   ;;
 700   --make=*) make="$optarg"
 701   ;;
 702   --install=*)
 703   ;;
 704   --python=*) python="$optarg" ; explicit_python=yes
 705   ;;
 706   --skip-meson) skip_meson=yes
 707   ;;
 708   --meson=*) meson="$optarg"
 709   ;;
 710   --ninja=*) ninja="$optarg"
 711   ;;
 712   --smbd=*) smbd="$optarg"
 713   ;;
 714   --extra-cflags=*)
 715   ;;
 716   --extra-cxxflags=*)
 717   ;;
 718   --extra-objcflags=*)
 719   ;;
 720   --extra-ldflags=*)
 721   ;;
 722   --cross-cc-*)
 723   ;;
 724   --cross-prefix-*)
 725   ;;
 726   --enable-debug-info) meson_option_add -Ddebug=true
 727   ;;
 728   --disable-debug-info) meson_option_add -Ddebug=false
 729   ;;
 730   --enable-modules)
 731       modules="yes"
 732   ;;
 733   --disable-modules)
 734       modules="no"
 735   ;;
 736   --cpu=*)
 737   ;;
 738   --target-list=*) target_list="$optarg"
 739                    if test "$target_list_exclude"; then
 740                        error_exit "Can't mix --target-list with --target-list-exclude"
 741                    fi
 742   ;;
 743   --target-list-exclude=*) target_list_exclude="$optarg"
 744                    if test "$target_list"; then
 745                        error_exit "Can't mix --target-list-exclude with --target-list"
 746                    fi
 747   ;;
 748   --with-default-devices) meson_option_add -Ddefault_devices=true
 749   ;;
 750   --without-default-devices) meson_option_add -Ddefault_devices=false
 751   ;;
 752   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 753   ;;
 754   --with-devices-*) device_arch=${opt#--with-devices-};
 755                     device_arch=${device_arch%%=*}
 756                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 757                     if test -f "$cf"; then
 758                         device_archs="$device_archs $device_arch"
 759                         eval "devices_${device_arch}=\$optarg"
 760                     else
 761                         error_exit "File $cf does not exist"
 762                     fi
 763   ;;
 764   --without-default-features) # processed above
 765   ;;
 766   --static)
 767     static="yes"
 768     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 769   ;;
 770   --bindir=*) bindir="$optarg"
 771   ;;
 772   --with-suffix=*) qemu_suffix="$optarg"
 773   ;;
 774   --host=*|--build=*|\
 775   --disable-dependency-tracking|\
 776   --sbindir=*|--sharedstatedir=*|\
 777   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 778   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 779     # These switches are silently ignored, for compatibility with
 780     # autoconf-generated configure scripts. This allows QEMU's
 781     # configure to be used by RPM and similar macros that set
 782     # lots of directory switches by default.
 783   ;;
 784   --enable-debug-tcg) debug_tcg="yes"
 785   ;;
 786   --disable-debug-tcg) debug_tcg="no"
 787   ;;
 788   --enable-debug)
 789       # Enable debugging options that aren't excessively noisy
 790       debug_tcg="yes"
 791       meson_option_parse --enable-debug-mutex ""
 792       meson_option_add -Doptimization=0
 793       fortify_source="no"
 794   ;;
 795   --enable-sanitizers) sanitizers="yes"
 796   ;;
 797   --disable-sanitizers) sanitizers="no"
 798   ;;
 799   --enable-tsan) tsan="yes"
 800   ;;
 801   --disable-tsan) tsan="no"
 802   ;;
 803   --disable-tcg) tcg="disabled"
 804                  plugins="no"
 805   ;;
 806   --enable-tcg) tcg="enabled"
 807   ;;
 808   --disable-system) softmmu="no"
 809   ;;
 810   --enable-system) softmmu="yes"
 811   ;;
 812   --disable-user)
 813       linux_user="no" ;
 814       bsd_user="no" ;
 815   ;;
 816   --enable-user) ;;
 817   --disable-linux-user) linux_user="no"
 818   ;;
 819   --enable-linux-user) linux_user="yes"
 820   ;;
 821   --disable-bsd-user) bsd_user="no"
 822   ;;
 823   --enable-bsd-user) bsd_user="yes"
 824   ;;
 825   --enable-pie) pie="yes"
 826   ;;
 827   --disable-pie) pie="no"
 828   ;;
 829   --enable-werror) werror="yes"
 830   ;;
 831   --disable-werror) werror="no"
 832   ;;
 833   --enable-stack-protector) stack_protector="yes"
 834   ;;
 835   --disable-stack-protector) stack_protector="no"
 836   ;;
 837   --enable-safe-stack) safe_stack="yes"
 838   ;;
 839   --disable-safe-stack) safe_stack="no"
 840   ;;
 841   --enable-cfi)
 842       cfi="true";
 843       meson_option_add -Db_lto=true
 844   ;;
 845   --disable-cfi) cfi="false"
 846   ;;
 847   --disable-fdt) fdt="disabled"
 848   ;;
 849   --enable-fdt) fdt="enabled"
 850   ;;
 851   --enable-fdt=git) fdt="internal"
 852   ;;
 853   --enable-fdt=*) fdt="$optarg"
 854   ;;
 855   --with-coroutine=*) coroutine="$optarg"
 856   ;;
 857   --disable-zlib-test)
 858   ;;
 859   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
 860       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
 861   ;;
 862   --enable-vhdx|--disable-vhdx)
 863       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
 864   ;;
 865   --enable-uuid|--disable-uuid)
 866       echo "$0: $opt is obsolete, UUID support is always built" >&2
 867   ;;
 868   --with-git=*) git="$optarg"
 869   ;;
 870   --with-git-submodules=*)
 871       git_submodules_action="$optarg"
 872   ;;
 873   --enable-plugins) if test "$mingw32" = "yes"; then
 874                         error_exit "TCG plugins not currently supported on Windows platforms"
 875                     else
 876                         plugins="yes"
 877                     fi
 878   ;;
 879   --disable-plugins) plugins="no"
 880   ;;
 881   --enable-containers) use_containers="yes"
 882   ;;
 883   --disable-containers) use_containers="no"
 884   ;;
 885   --gdb=*) gdb_bin="$optarg"
 886   ;;
 887   # backwards compatibility options
 888   --enable-trace-backend=*) meson_option_parse "--enable-trace-backends=$optarg" "$optarg"
 889   ;;
 890   --disable-blobs) meson_option_parse --disable-install-blobs ""
 891   ;;
 892   --enable-vfio-user-server) vfio_user_server="enabled"
 893   ;;
 894   --disable-vfio-user-server) vfio_user_server="disabled"
 895   ;;
 896   --enable-tcmalloc) meson_option_parse --enable-malloc=tcmalloc tcmalloc
 897   ;;
 898   --enable-jemalloc) meson_option_parse --enable-malloc=jemalloc jemalloc
 899   ;;
 900   # everything else has the same name in configure and meson
 901   --*) meson_option_parse "$opt" "$optarg"
 902   ;;
 903   esac
 904 done
 905
 906 # test for any invalid configuration combinations
 907 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
 908     error_exit "Can't enable plugins on non-TCG builds"
 909 fi
 910
 911 case $git_submodules_action in
 912     update|validate)
 913         if test ! -e "$source_path/.git"; then
 914             echo "ERROR: cannot $git_submodules_action git submodules without .git"
 915             exit 1
 916         fi
 917     ;;
 918     ignore)
 919         if ! test -f "$source_path/ui/keycodemapdb/README"
 920         then
 921             echo
 922             echo "ERROR: missing GIT submodules"
 923             echo
 924             if test -e "$source_path/.git"; then
 925                 echo "--with-git-submodules=ignore specified but submodules were not"
 926                 echo "checked out.  Please initialize and update submodules."
 927             else
 928                 echo "This is not a GIT checkout but module content appears to"
 929                 echo "be missing. Do not use 'git archive' or GitHub download links"
 930                 echo "to acquire QEMU source archives. Non-GIT builds are only"
 931                 echo "supported with source archives linked from:"
 932                 echo
 933                 echo "  https://www.qemu.org/download/#source"
 934                 echo
 935                 echo "Developers working with GIT can use scripts/archive-source.sh"
 936                 echo "if they need to create valid source archives."
 937             fi
 938             echo
 939             exit 1
 940         fi
 941     ;;
 942     *)
 943         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
 944         exit 1
 945     ;;
 946 esac
 947
 948 default_target_list=""
 949 mak_wilds=""
 950
 951 if [ "$linux_user" != no ]; then
 952     if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then
 953         linux_user=yes
 954     elif [ "$linux_user" = yes ]; then
 955         error_exit "linux-user not supported on this architecture"
 956     fi
 957 fi
 958 if [ "$bsd_user" != no ]; then
 959     if [ "$bsd_user" = "" ]; then
 960         test $targetos = freebsd && bsd_user=yes
 961     fi
 962     if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
 963         error_exit "bsd-user not supported on this host OS"
 964     fi
 965 fi
 966 if [ "$softmmu" = "yes" ]; then
 967     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 968 fi
 969 if [ "$linux_user" = "yes" ]; then
 970     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 971 fi
 972 if [ "$bsd_user" = "yes" ]; then
 973     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 974 fi
 975
 976 for config in $mak_wilds; do
 977     target="$(basename "$config" .mak)"
 978     if echo "$target_list_exclude" | grep -vq "$target"; then
 979         default_target_list="${default_target_list} $target"
 980     fi
 981 done
 982
 983 if test x"$show_help" = x"yes" ; then
 984 cat << EOF
 985
 986 Usage: configure [options]
 987 Options: [defaults in brackets after descriptions]
 988
 989 Standard options:
 990   --help                   print this message
 991   --prefix=PREFIX          install in PREFIX [$prefix]
 992   --target-list=LIST       set target list (default: build all)
 993 $(echo Available targets: $default_target_list | \
 994   fold -s -w 53 | sed -e 's/^/                           /')
 995   --target-list-exclude=LIST exclude a set of targets from the default target-list
 996
 997 Advanced options (experts only):
 998   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
 999   --cc=CC                  use C compiler CC [$cc]
1000   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1001                            build time
1002   --cxx=CXX                use C++ compiler CXX [$cxx]
1003   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1004   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
1005   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
1006   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
1007   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1008   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1009   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
1010   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
1011   --make=MAKE              use specified make [$make]
1012   --python=PYTHON          use specified python [$python]
1013   --meson=MESON            use specified meson [$meson]
1014   --ninja=NINJA            use specified ninja [$ninja]
1015   --smbd=SMBD              use specified smbd [$smbd]
1016   --with-git=GIT           use specified git [$git]
1017   --with-git-submodules=update   update git submodules (default if .git dir exists)
1018   --with-git-submodules=validate fail if git submodules are not up to date
1019   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1020   --static                 enable static build [$static]
1021   --bindir=PATH            install binaries in PATH
1022   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1023   --without-default-features default all --enable-* options to "disabled"
1024   --without-default-devices  do not include any device that is not needed to
1025                            start the emulator (only use if you are including
1026                            desired devices in configs/devices/)
1027   --with-devices-ARCH=NAME override default configs/devices
1028   --enable-debug           enable common debug build options
1029   --enable-sanitizers      enable default sanitizers
1030   --enable-tsan            enable thread sanitizer
1031   --disable-werror         disable compilation abort on warning
1032   --disable-stack-protector disable compiler-provided stack protection
1033   --cpu=CPU                Build for host CPU [$cpu]
1034   --with-coroutine=BACKEND coroutine backend. Supported options:
1035                            ucontext, sigaltstack, windows
1036   --enable-plugins
1037                            enable plugins via shared library loading
1038   --disable-containers     don't use containers for cross-building
1039   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1040 EOF
1041   meson_options_help
1042 cat << EOF
1043   system          all system emulation targets
1044   user            supported user emulation targets
1045   linux-user      all linux usermode emulation targets
1046   bsd-user        all BSD usermode emulation targets
1047   pie             Position Independent Executables
1048   modules         modules support (non-Windows)
1049   debug-tcg       TCG debugging (default is disabled)
1050   debug-info      debugging information
1051   safe-stack      SafeStack Stack Smash Protection. Depends on
1052                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1053
1054 NOTE: The object files are built at the place where configure is launched
1055 EOF
1056 exit 0
1057 fi
1058
1059 # Remove old dependency files to make sure that they get properly regenerated
1060 rm -f ./*/config-devices.mak.d
1061
1062 if test -z "$python"
1063 then
1064     error_exit "Python not found. Use --python=/path/to/python"
1065 fi
1066 if ! has "$make"
1067 then
1068     error_exit "GNU make ($make) not found"
1069 fi
1070
1071 # Note that if the Python conditional here evaluates True we will exit
1072 # with status 1 which is a shell 'false' value.
1073 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1074   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1075       "Use --python=/path/to/python to specify a supported Python."
1076 fi
1077
1078 # Suppress writing compiled files
1079 python="$python -B"
1080
1081 if test -z "$meson"; then
1082     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.61.5; then
1083         meson=meson
1084     elif test "$git_submodules_action" != 'ignore' ; then
1085         meson=git
1086     elif test -e "${source_path}/meson/meson.py" ; then
1087         meson=internal
1088     else
1089         if test "$explicit_python" = yes; then
1090             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1091         else
1092             error_exit "Meson not found.  Use --meson=/path/to/meson"
1093         fi
1094     fi
1095 else
1096     # Meson uses its own Python interpreter to invoke other Python scripts,
1097     # but the user wants to use the one they specified with --python.
1098     #
1099     # We do not want to override the distro Python interpreter (and sometimes
1100     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1101     # just require --meson=git|internal together with --python.
1102     if test "$explicit_python" = yes; then
1103         case "$meson" in
1104             git | internal) ;;
1105             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1106         esac
1107     fi
1108 fi
1109
1110 if test "$meson" = git; then
1111     git_submodules="${git_submodules} meson"
1112 fi
1113
1114 case "$meson" in
1115     git | internal)
1116         meson="$python ${source_path}/meson/meson.py"
1117         ;;
1118     *) meson=$(command -v "$meson") ;;
1119 esac
1120
1121 # Probe for ninja
1122
1123 if test -z "$ninja"; then
1124     for c in ninja ninja-build samu; do
1125         if has $c; then
1126             ninja=$(command -v "$c")
1127             break
1128         fi
1129     done
1130     if test -z "$ninja"; then
1131       error_exit "Cannot find Ninja"
1132     fi
1133 fi
1134
1135 # Check that the C compiler works. Doing this here before testing
1136 # the host CPU ensures that we had a valid CC to autodetect the
1137 # $cpu var (and we should bail right here if that's not the case).
1138 # It also allows the help message to be printed without a CC.
1139 write_c_skeleton;
1140 if compile_object ; then
1141   : C compiler works ok
1142 else
1143     error_exit "\"$cc\" either does not exist or does not work"
1144 fi
1145 if ! compile_prog ; then
1146     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1147 fi
1148
1149 # Consult white-list to determine whether to enable werror
1150 # by default.  Only enable by default for git builds
1151 if test -z "$werror" ; then
1152     if test "$git_submodules_action" != "ignore" && \
1153         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1154         werror="yes"
1155     else
1156         werror="no"
1157     fi
1158 fi
1159
1160 if test "$targetos" = "bogus"; then
1161     # Now that we know that we're not printing the help and that
1162     # the compiler works (so the results of the check_defines we used
1163     # to identify the OS are reliable), if we didn't recognize the
1164     # host OS we should stop now.
1165     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1166 fi
1167
1168 # Check whether the compiler matches our minimum requirements:
1169 cat > $TMPC << EOF
1170 #if defined(__clang_major__) && defined(__clang_minor__)
1171 # ifdef __apple_build_version__
1172 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1173 #   error You need at least XCode Clang v10.0 to compile QEMU
1174 #  endif
1175 # else
1176 #  if __clang_major__ < 6 || (__clang_major__ == 6 && __clang_minor__ < 0)
1177 #   error You need at least Clang v6.0 to compile QEMU
1178 #  endif
1179 # endif
1180 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1181 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1182 #  error You need at least GCC v7.4.0 to compile QEMU
1183 # endif
1184 #else
1185 # error You either need GCC or Clang to compiler QEMU
1186 #endif
1187 int main (void) { return 0; }
1188 EOF
1189 if ! compile_prog "" "" ; then
1190     error_exit "You need at least GCC v7.4 or Clang v6.0 (or XCode Clang v10.0)"
1191 fi
1192
1193 # Accumulate -Wfoo and -Wno-bar separately.
1194 # We will list all of the enable flags first, and the disable flags second.
1195 # Note that we do not add -Werror, because that would enable it for all
1196 # configure tests. If a configure test failed due to -Werror this would
1197 # just silently disable some features, so it's too error prone.
1198
1199 warn_flags=
1200 add_to warn_flags -Wold-style-declaration
1201 add_to warn_flags -Wold-style-definition
1202 add_to warn_flags -Wtype-limits
1203 add_to warn_flags -Wformat-security
1204 add_to warn_flags -Wformat-y2k
1205 add_to warn_flags -Winit-self
1206 add_to warn_flags -Wignored-qualifiers
1207 add_to warn_flags -Wempty-body
1208 add_to warn_flags -Wnested-externs
1209 add_to warn_flags -Wendif-labels
1210 add_to warn_flags -Wexpansion-to-defined
1211 add_to warn_flags -Wimplicit-fallthrough=2
1212
1213 nowarn_flags=
1214 add_to nowarn_flags -Wno-initializer-overrides
1215 add_to nowarn_flags -Wno-missing-include-dirs
1216 add_to nowarn_flags -Wno-shift-negative-value
1217 add_to nowarn_flags -Wno-string-plus-int
1218 add_to nowarn_flags -Wno-typedef-redefinition
1219 add_to nowarn_flags -Wno-tautological-type-limit-compare
1220 add_to nowarn_flags -Wno-psabi
1221 add_to nowarn_flags -Wno-gnu-variable-sized-type-not-at-end
1222
1223 gcc_flags="$warn_flags $nowarn_flags"
1224
1225 cc_has_warning_flag() {
1226     write_c_skeleton;
1227
1228     # Use the positive sense of the flag when testing for -Wno-wombat
1229     # support (gcc will happily accept the -Wno- form of unknown
1230     # warning options).
1231     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1232     compile_prog "-Werror $optflag" ""
1233 }
1234
1235 objcc_has_warning_flag() {
1236     cat > $TMPM <<EOF
1237 int main(void) { return 0; }
1238 EOF
1239
1240     # Use the positive sense of the flag when testing for -Wno-wombat
1241     # support (gcc will happily accept the -Wno- form of unknown
1242     # warning options).
1243     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1244     do_objc -Werror $optflag \
1245       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1246       -o $TMPE $TMPM $QEMU_LDFLAGS
1247 }
1248
1249 for flag in $gcc_flags; do
1250     if cc_has_warning_flag $flag ; then
1251         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1252     fi
1253     if objcc_has_warning_flag $flag ; then
1254         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1255     fi
1256 done
1257
1258 if test "$stack_protector" != "no"; then
1259   cat > $TMPC << EOF
1260 int main(int argc, char *argv[])
1261 {
1262     char arr[64], *p = arr, *c = argv[argc - 1];
1263     while (*c) {
1264         *p++ = *c++;
1265     }
1266     return 0;
1267 }
1268 EOF
1269   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1270   sp_on=0
1271   for flag in $gcc_flags; do
1272     # We need to check both a compile and a link, since some compiler
1273     # setups fail only on a .c->.o compile and some only at link time
1274     if compile_object "-Werror $flag" &&
1275        compile_prog "-Werror $flag" ""; then
1276       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1277       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1278       sp_on=1
1279       break
1280     fi
1281   done
1282   if test "$stack_protector" = yes; then
1283     if test $sp_on = 0; then
1284       error_exit "Stack protector not supported"
1285     fi
1286   fi
1287 fi
1288
1289 # Disable -Wmissing-braces on older compilers that warn even for
1290 # the "universal" C zero initializer {0}.
1291 cat > $TMPC << EOF
1292 struct {
1293   int a[2];
1294 } x = {0};
1295 EOF
1296 if compile_object "-Werror" "" ; then
1297   :
1298 else
1299   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
1300 fi
1301
1302 # Our module code doesn't support Windows
1303 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1304   error_exit "Modules are not available for Windows"
1305 fi
1306
1307 # Static linking is not possible with plugins, modules or PIE
1308 if test "$static" = "yes" ; then
1309   if test "$modules" = "yes" ; then
1310     error_exit "static and modules are mutually incompatible"
1311   fi
1312   if test "$plugins" = "yes"; then
1313     error_exit "static and plugins are mutually incompatible"
1314   else
1315     plugins="no"
1316   fi
1317 fi
1318 test "$plugins" = "" && plugins=yes
1319
1320 cat > $TMPC << EOF
1321
1322 #ifdef __linux__
1323 #  define THREAD __thread
1324 #else
1325 #  define THREAD
1326 #endif
1327 static THREAD int tls_var;
1328 int main(void) { return tls_var; }
1329 EOF
1330
1331 # Meson currently only handles pie as a boolean for now so if we have
1332 # explicitly disabled PIE we need to extend our cflags because it wont.
1333 if test "$static" = "yes"; then
1334   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1335     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1336     pie="yes"
1337   elif test "$pie" = "yes"; then
1338     error_exit "-static-pie not available due to missing toolchain support"
1339   else
1340     pie="no"
1341     QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1342   fi
1343 elif test "$pie" = "no"; then
1344   if compile_prog "-Werror -fno-pie" "-no-pie"; then
1345     CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS"
1346     CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS"
1347     QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1348   fi
1349 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1350   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1351   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1352   pie="yes"
1353 elif test "$pie" = "yes"; then
1354   error_exit "PIE not available due to missing toolchain support"
1355 else
1356   echo "Disabling PIE due to missing toolchain support"
1357   pie="no"
1358 fi
1359
1360 ##########################################
1361 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1362 # use i686 as default anyway, but for those that don't, an explicit
1363 # specification is necessary
1364
1365 if test "$cpu" = "i386"; then
1366   cat > $TMPC << EOF
1367 static int sfaa(int *ptr)
1368 {
1369   return __sync_fetch_and_and(ptr, 0);
1370 }
1371
1372 int main(void)
1373 {
1374   int val = 42;
1375   val = __sync_val_compare_and_swap(&val, 0, 1);
1376   sfaa(&val);
1377   return val;
1378 }
1379 EOF
1380   if ! compile_prog "" "" ; then
1381     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1382   fi
1383 fi
1384
1385 if test -z "${target_list+xxx}" ; then
1386     default_targets=yes
1387     for target in $default_target_list; do
1388         target_list="$target_list $target"
1389     done
1390     target_list="${target_list# }"
1391 else
1392     default_targets=no
1393     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1394     for target in $target_list; do
1395         # Check that we recognised the target name; this allows a more
1396         # friendly error message than if we let it fall through.
1397         case " $default_target_list " in
1398             *" $target "*)
1399                 ;;
1400             *)
1401                 error_exit "Unknown target name '$target'"
1402                 ;;
1403         esac
1404     done
1405 fi
1406
1407 # see if system emulation was really requested
1408 case " $target_list " in
1409   *"-softmmu "*) softmmu=yes
1410   ;;
1411   *) softmmu=no
1412   ;;
1413 esac
1414
1415 if test "$tcg" = "auto"; then
1416   if test -z "$target_list"; then
1417     tcg="disabled"
1418   else
1419     tcg="enabled"
1420   fi
1421 fi
1422
1423 if test "$tcg" = "enabled"; then
1424     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1425     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1426 fi
1427
1428 ##########################################
1429 # big/little endian test
1430 cat > $TMPC << EOF
1431 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1432 # error LITTLE
1433 #endif
1434 int main(void) { return 0; }
1435 EOF
1436
1437 if ! compile_prog ; then
1438   bigendian="no"
1439 else
1440   cat > $TMPC << EOF
1441 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1442 # error BIG
1443 #endif
1444 int main(void) { return 0; }
1445 EOF
1446
1447   if ! compile_prog ; then
1448     bigendian="yes"
1449   else
1450     echo big/little test failed
1451     exit 1
1452   fi
1453 fi
1454
1455 ##########################################
1456 # pkg-config probe
1457
1458 if ! has "$pkg_config_exe"; then
1459   error_exit "pkg-config binary '$pkg_config_exe' not found"
1460 fi
1461
1462 ##########################################
1463 # glib support probe
1464
1465 # When bumping glib_req_ver, please check also whether we should increase
1466 # the _WIN32_WINNT setting in osdep.h according to the value from glib
1467 glib_req_ver=2.56
1468 glib_modules=gthread-2.0
1469 if test "$modules" = yes; then
1470     glib_modules="$glib_modules gmodule-export-2.0"
1471 elif test "$plugins" = "yes"; then
1472     glib_modules="$glib_modules gmodule-no-export-2.0"
1473 fi
1474
1475 for i in $glib_modules; do
1476     if $pkg_config --atleast-version=$glib_req_ver $i; then
1477         glib_cflags=$($pkg_config --cflags $i)
1478         glib_libs=$($pkg_config --libs $i)
1479     else
1480         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
1481     fi
1482 done
1483
1484 glib_bindir="$($pkg_config --variable=bindir glib-2.0)"
1485 if test -z "$glib_bindir" ; then
1486         glib_bindir="$($pkg_config --variable=prefix glib-2.0)"/bin
1487 fi
1488
1489 # This workaround is required due to a bug in pkg-config file for glib as it
1490 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
1491
1492 if test "$static" = yes && test "$mingw32" = yes; then
1493     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
1494 fi
1495
1496 # Sanity check that the current size_t matches the
1497 # size that glib thinks it should be. This catches
1498 # problems on multi-arch where people try to build
1499 # 32-bit QEMU while pointing at 64-bit glib headers
1500 cat > $TMPC <<EOF
1501 #include <glib.h>
1502 #include <unistd.h>
1503
1504 #define QEMU_BUILD_BUG_ON(x) \
1505   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
1506
1507 int main(void) {
1508    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
1509    return 0;
1510 }
1511 EOF
1512
1513 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
1514     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
1515                "You probably need to set PKG_CONFIG_LIBDIR"\
1516                "to point to the right pkg-config files for your"\
1517                "build target"
1518 fi
1519
1520 # Silence clang warnings triggered by glib < 2.57.2
1521 cat > $TMPC << EOF
1522 #include <glib.h>
1523 typedef struct Foo {
1524     int i;
1525 } Foo;
1526 static void foo_free(Foo *f)
1527 {
1528     g_free(f);
1529 }
1530 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
1531 int main(void) { return 0; }
1532 EOF
1533 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
1534     if cc_has_warning_flag "-Wno-unused-function"; then
1535         glib_cflags="$glib_cflags -Wno-unused-function"
1536         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
1537     fi
1538 fi
1539
1540 ##########################################
1541 # fdt probe
1542
1543 case "$fdt" in
1544   auto | enabled | internal)
1545     # Simpler to always update submodule, even if not needed.
1546     git_submodules="${git_submodules} dtc"
1547     ;;
1548 esac
1549
1550 ##########################################
1551 # check and set a backend for coroutine
1552
1553 # We prefer ucontext, but it's not always possible. The fallback
1554 # is sigcontext. On Windows the only valid backend is the Windows
1555 # specific one.
1556
1557 ucontext_works=no
1558 if test "$darwin" != "yes"; then
1559   cat > $TMPC << EOF
1560 #include <ucontext.h>
1561 #ifdef __stub_makecontext
1562 #error Ignoring glibc stub makecontext which will always fail
1563 #endif
1564 int main(void) { makecontext(0, 0, 0); return 0; }
1565 EOF
1566   if compile_prog "" "" ; then
1567     ucontext_works=yes
1568   fi
1569 fi
1570
1571 if test "$coroutine" = ""; then
1572   if test "$mingw32" = "yes"; then
1573     coroutine=win32
1574   elif test "$ucontext_works" = "yes"; then
1575     coroutine=ucontext
1576   else
1577     coroutine=sigaltstack
1578   fi
1579 else
1580   case $coroutine in
1581   windows)
1582     if test "$mingw32" != "yes"; then
1583       error_exit "'windows' coroutine backend only valid for Windows"
1584     fi
1585     # Unfortunately the user visible backend name doesn't match the
1586     # coroutine-*.c filename for this case, so we have to adjust it here.
1587     coroutine=win32
1588     ;;
1589   ucontext)
1590     if test "$ucontext_works" != "yes"; then
1591       error_exit "'ucontext' backend requested but makecontext not available"
1592     fi
1593     ;;
1594   sigaltstack)
1595     if test "$mingw32" = "yes"; then
1596       error_exit "only the 'windows' coroutine backend is valid for Windows"
1597     fi
1598     ;;
1599   *)
1600     error_exit "unknown coroutine backend $coroutine"
1601     ;;
1602   esac
1603 fi
1604
1605 ##################################################
1606 # SafeStack
1607
1608
1609 if test "$safe_stack" = "yes"; then
1610 cat > $TMPC << EOF
1611 int main(void)
1612 {
1613 #if ! __has_feature(safe_stack)
1614 #error SafeStack Disabled
1615 #endif
1616     return 0;
1617 }
1618 EOF
1619   flag="-fsanitize=safe-stack"
1620   # Check that safe-stack is supported and enabled.
1621   if compile_prog "-Werror $flag" "$flag"; then
1622     # Flag needed both at compilation and at linking
1623     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1624     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1625   else
1626     error_exit "SafeStack not supported by your compiler"
1627   fi
1628   if test "$coroutine" != "ucontext"; then
1629     error_exit "SafeStack is only supported by the coroutine backend ucontext"
1630   fi
1631 else
1632 cat > $TMPC << EOF
1633 int main(void)
1634 {
1635 #if defined(__has_feature)
1636 #if __has_feature(safe_stack)
1637 #error SafeStack Enabled
1638 #endif
1639 #endif
1640     return 0;
1641 }
1642 EOF
1643 if test "$safe_stack" = "no"; then
1644   # Make sure that safe-stack is disabled
1645   if ! compile_prog "-Werror" ""; then
1646     # SafeStack was already enabled, try to explicitly remove the feature
1647     flag="-fno-sanitize=safe-stack"
1648     if ! compile_prog "-Werror $flag" "$flag"; then
1649       error_exit "Configure cannot disable SafeStack"
1650     fi
1651     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1652     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1653   fi
1654 else # "$safe_stack" = ""
1655   # Set safe_stack to yes or no based on pre-existing flags
1656   if compile_prog "-Werror" ""; then
1657     safe_stack="no"
1658   else
1659     safe_stack="yes"
1660     if test "$coroutine" != "ucontext"; then
1661       error_exit "SafeStack is only supported by the coroutine backend ucontext"
1662     fi
1663   fi
1664 fi
1665 fi
1666
1667 ########################################
1668 # check if ccache is interfering with
1669 # semantic analysis of macros
1670
1671 unset CCACHE_CPP2
1672 ccache_cpp2=no
1673 cat > $TMPC << EOF
1674 static const int Z = 1;
1675 #define fn() ({ Z; })
1676 #define TAUT(X) ((X) == Z)
1677 #define PAREN(X, Y) (X == Y)
1678 #define ID(X) (X)
1679 int main(void)
1680 {
1681     int x = 0, y = 0;
1682     x = ID(x);
1683     x = fn();
1684     fn();
1685     if (PAREN(x, y)) return 0;
1686     if (TAUT(Z)) return 0;
1687     return 0;
1688 }
1689 EOF
1690
1691 if ! compile_object "-Werror"; then
1692     ccache_cpp2=yes
1693 fi
1694
1695 #################################################
1696 # clang does not support glibc + FORTIFY_SOURCE.
1697
1698 if test "$fortify_source" != "no"; then
1699   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
1700     fortify_source="no";
1701   elif test -n "$cxx" && has $cxx &&
1702        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
1703     fortify_source="no";
1704   else
1705     fortify_source="yes"
1706   fi
1707 fi
1708
1709 ##########################################
1710 # checks for sanitizers
1711
1712 have_asan=no
1713 have_ubsan=no
1714 have_asan_iface_h=no
1715 have_asan_iface_fiber=no
1716
1717 if test "$sanitizers" = "yes" ; then
1718   write_c_skeleton
1719   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
1720       have_asan=yes
1721   fi
1722
1723   # we could use a simple skeleton for flags checks, but this also
1724   # detect the static linking issue of ubsan, see also:
1725   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
1726   cat > $TMPC << EOF
1727 #include <stdlib.h>
1728 int main(void) {
1729     void *tmp = malloc(10);
1730     if (tmp != NULL) {
1731         return *(int *)(tmp + 2);
1732     }
1733     return 1;
1734 }
1735 EOF
1736   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
1737       have_ubsan=yes
1738   fi
1739
1740   if check_include "sanitizer/asan_interface.h" ; then
1741       have_asan_iface_h=yes
1742   fi
1743
1744   cat > $TMPC << EOF
1745 #include <sanitizer/asan_interface.h>
1746 int main(void) {
1747   __sanitizer_start_switch_fiber(0, 0, 0);
1748   return 0;
1749 }
1750 EOF
1751   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
1752       have_asan_iface_fiber=yes
1753   fi
1754 fi
1755
1756 # Thread sanitizer is, for now, much noisier than the other sanitizers;
1757 # keep it separate until that is not the case.
1758 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
1759   error_exit "TSAN is not supported with other sanitiziers."
1760 fi
1761 have_tsan=no
1762 have_tsan_iface_fiber=no
1763 if test "$tsan" = "yes" ; then
1764   write_c_skeleton
1765   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1766       have_tsan=yes
1767   fi
1768   cat > $TMPC << EOF
1769 #include <sanitizer/tsan_interface.h>
1770 int main(void) {
1771   __tsan_create_fiber(0);
1772   return 0;
1773 }
1774 EOF
1775   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1776       have_tsan_iface_fiber=yes
1777   fi
1778 fi
1779
1780 ##########################################
1781 # functions to probe cross compilers
1782
1783 container="no"
1784 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1785     case $($python "$source_path"/tests/docker/docker.py probe) in
1786         *docker) container=docker ;;
1787         podman) container=podman ;;
1788         no) container=no ;;
1789     esac
1790     if test "$container" != "no"; then
1791         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1792     fi
1793 fi
1794
1795 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1796 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1797 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1798 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1799 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1800 : ${cross_prefix_armeb="$cross_prefix_arm"}
1801 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1802 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1803 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1804 : ${cross_prefix_i386="i686-linux-gnu-"}
1805 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1806 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1807 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1808 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1809 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1810 : ${cross_prefix_mips="mips-linux-gnu-"}
1811 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1812 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1813 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1814 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1815 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1816 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1817 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1818 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1819 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1820 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1821
1822 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1823 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1824 : ${cross_cc_armeb="$cross_cc_arm"}
1825 : ${cross_cc_cflags_armeb="-mbig-endian"}
1826 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1827 : ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
1828 : ${cross_cc_cflags_i386="-m32"}
1829 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1830 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1831 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1832 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1833 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1834 : ${cross_cc_sparc="$cross_cc_sparc64"}
1835 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1836 : ${cross_cc_cflags_x86_64="-m64"}
1837
1838 compute_target_variable() {
1839   eval "$2="
1840   if eval test -n "\"\${cross_prefix_$1}\""; then
1841     if eval has "\"\${cross_prefix_$1}\$3\""; then
1842       eval "$2=\"\${cross_prefix_$1}\$3\""
1843     fi
1844   fi
1845 }
1846
1847 have_target() {
1848   for i; do
1849     case " $target_list " in
1850       *" $i "*) return 0;;
1851       *) ;;
1852     esac
1853   done
1854   return 1
1855 }
1856
1857 # probe_target_compiler TARGET
1858 #
1859 # Look for a compiler for the given target, either native or cross.
1860 # Set variables target_* if a compiler is found, and container_cross_*
1861 # if a Docker-based cross-compiler image is known for the target.
1862 # Set got_cross_cc to yes/no depending on whether a non-container-based
1863 # compiler was found.
1864 #
1865 # If TARGET is a user-mode emulation target, also set build_static to
1866 # "y" if static linking is possible.
1867 #
1868 probe_target_compiler() {
1869   # reset all output variables
1870   got_cross_cc=no
1871   container_image=
1872   container_hosts=
1873   container_cross_cc=
1874   container_cross_ar=
1875   container_cross_as=
1876   container_cross_ld=
1877   container_cross_nm=
1878   container_cross_objcopy=
1879   container_cross_ranlib=
1880   container_cross_strip=
1881
1882   # We shall skip configuring the target compiler if the user didn't
1883   # bother enabling an appropriate guest. This avoids building
1884   # extraneous firmware images and tests.
1885   if test "${target_list#*$1}" != "$1"; then
1886       break;
1887   else
1888       return 1
1889   fi
1890
1891   target_arch=${1%%-*}
1892   case $target_arch in
1893     aarch64) container_hosts="x86_64 aarch64" ;;
1894     alpha) container_hosts=x86_64 ;;
1895     arm) container_hosts="x86_64 aarch64" ;;
1896     cris) container_hosts=x86_64 ;;
1897     hexagon) container_hosts=x86_64 ;;
1898     hppa) container_hosts=x86_64 ;;
1899     i386) container_hosts=x86_64 ;;
1900     loongarch64) container_hosts=x86_64 ;;
1901     m68k) container_hosts=x86_64 ;;
1902     microblaze) container_hosts=x86_64 ;;
1903     mips64el) container_hosts=x86_64 ;;
1904     mips64) container_hosts=x86_64 ;;
1905     mipsel) container_hosts=x86_64 ;;
1906     mips) container_hosts=x86_64 ;;
1907     nios2) container_hosts=x86_64 ;;
1908     ppc) container_hosts=x86_64 ;;
1909     ppc64|ppc64le) container_hosts=x86_64 ;;
1910     riscv64) container_hosts=x86_64 ;;
1911     s390x) container_hosts=x86_64 ;;
1912     sh4) container_hosts=x86_64 ;;
1913     sparc64) container_hosts=x86_64 ;;
1914     tricore) container_hosts=x86_64 ;;
1915     x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1916     xtensa*) container_hosts=x86_64 ;;
1917   esac
1918
1919   for host in $container_hosts; do
1920     test "$container" != no || continue
1921     test "$host" = "$cpu" || continue
1922     case $target_arch in
1923       aarch64)
1924         # We don't have any bigendian build tools so we only use this for AArch64
1925         container_image=debian-arm64-cross
1926         container_cross_prefix=aarch64-linux-gnu-
1927         container_cross_cc=${container_cross_prefix}gcc-10
1928         ;;
1929       alpha)
1930         container_image=debian-alpha-cross
1931         container_cross_prefix=alpha-linux-gnu-
1932         ;;
1933       arm)
1934         # We don't have any bigendian build tools so we only use this for ARM
1935         container_image=debian-armhf-cross
1936         container_cross_prefix=arm-linux-gnueabihf-
1937         ;;
1938       cris)
1939         container_image=fedora-cris-cross
1940         container_cross_prefix=cris-linux-gnu-
1941         ;;
1942       hexagon)
1943         container_image=debian-hexagon-cross
1944         container_cross_prefix=hexagon-unknown-linux-musl-
1945         container_cross_cc=${container_cross_prefix}clang
1946         ;;
1947       hppa)
1948         container_image=debian-hppa-cross
1949         container_cross_prefix=hppa-linux-gnu-
1950         ;;
1951       i386)
1952         container_image=fedora-i386-cross
1953         container_cross_prefix=
1954         ;;
1955       loongarch64)
1956         container_image=debian-loongarch-cross
1957         container_cross_prefix=loongarch64-unknown-linux-gnu-
1958         ;;
1959       m68k)
1960         container_image=debian-m68k-cross
1961         container_cross_prefix=m68k-linux-gnu-
1962         ;;
1963       microblaze)
1964         container_image=debian-microblaze-cross
1965         container_cross_prefix=microblaze-linux-musl-
1966         ;;
1967       mips64el)
1968         container_image=debian-mips64el-cross
1969         container_cross_prefix=mips64el-linux-gnuabi64-
1970         ;;
1971       mips64)
1972         container_image=debian-mips64-cross
1973         container_cross_prefix=mips64-linux-gnuabi64-
1974         ;;
1975       mipsel)
1976         container_image=debian-mipsel-cross
1977         container_cross_prefix=mipsel-linux-gnu-
1978         ;;
1979       mips)
1980         container_image=debian-mips-cross
1981         container_cross_prefix=mips-linux-gnu-
1982         ;;
1983       nios2)
1984         container_image=debian-nios2-cross
1985         container_cross_prefix=nios2-linux-gnu-
1986         ;;
1987       ppc)
1988         container_image=debian-powerpc-test-cross
1989         container_cross_prefix=powerpc-linux-gnu-
1990         container_cross_cc=${container_cross_prefix}gcc-10
1991         ;;
1992       ppc64|ppc64le)
1993         container_image=debian-powerpc-test-cross
1994         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1995         container_cross_cc=${container_cross_prefix}gcc-10
1996         ;;
1997       riscv64)
1998         container_image=debian-riscv64-test-cross
1999         container_cross_prefix=riscv64-linux-gnu-
2000         ;;
2001       s390x)
2002         container_image=debian-s390x-cross
2003         container_cross_prefix=s390x-linux-gnu-
2004         ;;
2005       sh4)
2006         container_image=debian-sh4-cross
2007         container_cross_prefix=sh4-linux-gnu-
2008         ;;
2009       sparc64)
2010         container_image=debian-sparc64-cross
2011         container_cross_prefix=sparc64-linux-gnu-
2012         ;;
2013       tricore)
2014         container_image=debian-tricore-cross
2015         container_cross_prefix=tricore-
2016         container_cross_as=tricore-as
2017         container_cross_ld=tricore-ld
2018         break
2019         ;;
2020       x86_64)
2021         container_image=debian-amd64-cross
2022         container_cross_prefix=x86_64-linux-gnu-
2023         ;;
2024       xtensa*)
2025         container_hosts=x86_64
2026         container_image=debian-xtensa-cross
2027
2028         # default to the dc232b cpu
2029         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
2030         ;;
2031     esac
2032     : ${container_cross_cc:=${container_cross_prefix}gcc}
2033     : ${container_cross_ar:=${container_cross_prefix}ar}
2034     : ${container_cross_as:=${container_cross_prefix}as}
2035     : ${container_cross_ld:=${container_cross_prefix}ld}
2036     : ${container_cross_nm:=${container_cross_prefix}nm}
2037     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
2038     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
2039     : ${container_cross_strip:=${container_cross_prefix}strip}
2040   done
2041
2042   try=cross
2043   case "$target_arch:$cpu" in
2044     aarch64_be:aarch64 | \
2045     armeb:arm | \
2046     i386:x86_64 | \
2047     mips*:mips64 | \
2048     ppc*:ppc64 | \
2049     sparc:sparc64 | \
2050     "$cpu:$cpu")
2051       try='native cross' ;;
2052   esac
2053   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
2054   for thistry in $try; do
2055     case $thistry in
2056     native)
2057       target_cc=$cc
2058       target_ccas=$ccas
2059       target_ar=$ar
2060       target_as=$as
2061       target_ld=$ld
2062       target_nm=$nm
2063       target_objcopy=$objcopy
2064       target_ranlib=$ranlib
2065       target_strip=$strip
2066       ;;
2067     cross)
2068       target_cc=
2069       if eval test -n "\"\${cross_cc_$target_arch}\""; then
2070         if eval has "\"\${cross_cc_$target_arch}\""; then
2071           eval "target_cc=\"\${cross_cc_$target_arch}\""
2072         fi
2073       else
2074         compute_target_variable $target_arch target_cc gcc
2075       fi
2076       target_ccas=$target_cc
2077       compute_target_variable $target_arch target_ar ar
2078       compute_target_variable $target_arch target_as as
2079       compute_target_variable $target_arch target_ld ld
2080       compute_target_variable $target_arch target_nm nm
2081       compute_target_variable $target_arch target_objcopy objcopy
2082       compute_target_variable $target_arch target_ranlib ranlib
2083       compute_target_variable $target_arch target_strip strip
2084       ;;
2085     esac
2086
2087     if test -n "$target_cc"; then
2088       case $target_arch in
2089         i386|x86_64)
2090           if $target_cc --version | grep -qi "clang"; then
2091             continue
2092           fi
2093           ;;
2094       esac
2095     elif test -n "$target_as" && test -n "$target_ld"; then
2096       # Special handling for assembler only targets
2097       case $target in
2098         tricore-softmmu)
2099           build_static=
2100           got_cross_cc=yes
2101           break
2102           ;;
2103         *)
2104           continue
2105           ;;
2106       esac
2107     else
2108       continue
2109     fi
2110
2111     write_c_skeleton
2112     case $1 in
2113       *-softmmu)
2114         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
2115           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
2116           got_cross_cc=yes
2117           break
2118         fi
2119         ;;
2120       *)
2121         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
2122           build_static=y
2123           got_cross_cc=yes
2124           break
2125         fi
2126         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
2127           build_static=
2128           got_cross_cc=yes
2129           break
2130         fi
2131         ;;
2132     esac
2133   done
2134   if test $got_cross_cc != yes; then
2135     build_static=
2136     target_cc=
2137     target_ccas=
2138     target_ar=
2139     target_as=
2140     target_ld=
2141     target_nm=
2142     target_objcopy=
2143     target_ranlib=
2144     target_strip=
2145   fi
2146   test -n "$target_cc"
2147 }
2148
2149 write_target_makefile() {
2150   echo "EXTRA_CFLAGS=$target_cflags"
2151   if test -z "$target_cc" && test -z "$target_as"; then
2152     test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
2153     echo "$1: docker-image-$container_image" >> Makefile.prereqs
2154     if test -n "$container_cross_cc"; then
2155       echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2156       echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2157     fi
2158     echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
2159     echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
2160     echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
2161     echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
2162     echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
2163     echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
2164     echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
2165   else
2166     if test -n "$target_cc"; then
2167       echo "CC=$target_cc"
2168       echo "CCAS=$target_ccas"
2169     fi
2170     if test -n "$target_ar"; then
2171       echo "AR=$target_ar"
2172     fi
2173     if test -n "$target_as"; then
2174       echo "AS=$target_as"
2175     fi
2176     if test -n "$target_ld"; then
2177       echo "LD=$target_ld"
2178     fi
2179     if test -n "$target_nm"; then
2180       echo "NM=$target_nm"
2181     fi
2182     if test -n "$target_objcopy"; then
2183       echo "OBJCOPY=$target_objcopy"
2184     fi
2185     if test -n "$target_ranlib"; then
2186       echo "RANLIB=$target_ranlib"
2187     fi
2188     if test -n "$target_strip"; then
2189       echo "STRIP=$target_strip"
2190     fi
2191   fi
2192 }
2193
2194 ##########################################
2195 # check for vfio_user_server
2196
2197 case "$vfio_user_server" in
2198   enabled )
2199     if test "$git_submodules_action" != "ignore"; then
2200       git_submodules="${git_submodules} subprojects/libvfio-user"
2201     fi
2202     ;;
2203 esac
2204
2205 ##########################################
2206 # End of CC checks
2207 # After here, no more $cc or $ld runs
2208
2209 write_c_skeleton
2210
2211 if test "$fortify_source" = "yes" ; then
2212   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2213 fi
2214
2215 if test "$have_asan" = "yes"; then
2216   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2217   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2218   if test "$have_asan_iface_h" = "no" ; then
2219       echo "ASAN build enabled, but ASAN header missing." \
2220            "Without code annotation, the report may be inferior."
2221   elif test "$have_asan_iface_fiber" = "no" ; then
2222       echo "ASAN build enabled, but ASAN header is too old." \
2223            "Without code annotation, the report may be inferior."
2224   fi
2225 fi
2226 if test "$have_tsan" = "yes" ; then
2227   if test "$have_tsan_iface_fiber" = "yes" ; then
2228     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2229     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2230   else
2231     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2232   fi
2233 elif test "$tsan" = "yes" ; then
2234   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2235 fi
2236 if test "$have_ubsan" = "yes"; then
2237   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2238   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2239 fi
2240
2241 ##########################################
2242 # Guest agent Windows MSI package
2243
2244 if test "$QEMU_GA_MANUFACTURER" = ""; then
2245   QEMU_GA_MANUFACTURER=QEMU
2246 fi
2247 if test "$QEMU_GA_DISTRO" = ""; then
2248   QEMU_GA_DISTRO=Linux
2249 fi
2250 if test "$QEMU_GA_VERSION" = ""; then
2251     QEMU_GA_VERSION=$(cat "$source_path"/VERSION)
2252 fi
2253
2254
2255 #######################################
2256 # cross-compiled firmware targets
2257
2258 # Set up build tree symlinks that point back into the source tree
2259 # (these can be both files and directories).
2260 # Caution: avoid adding files or directories here using wildcards. This
2261 # will result in problems later if a new file matching the wildcard is
2262 # added to the source tree -- nothing will cause configure to be rerun
2263 # so the build tree will be missing the link back to the new file, and
2264 # tests might fail. Prefer to keep the relevant files in their own
2265 # directory and symlink the directory instead.
2266 LINKS="Makefile"
2267 LINKS="$LINKS pc-bios/optionrom/Makefile"
2268 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
2269 LINKS="$LINKS pc-bios/vof/Makefile"
2270 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
2271 LINKS="$LINKS tests/avocado tests/data"
2272 LINKS="$LINKS tests/qemu-iotests/check"
2273 LINKS="$LINKS python"
2274 LINKS="$LINKS contrib/plugins/Makefile "
2275 for f in $LINKS ; do
2276     if [ -e "$source_path/$f" ]; then
2277         mkdir -p "$(dirname ./"$f")"
2278         symlink "$source_path/$f" "$f"
2279     fi
2280 done
2281
2282 echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
2283
2284 # Mac OS X ships with a broken assembler
2285 roms=
2286 if have_target i386-softmmu x86_64-softmmu && \
2287         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2288         test "$targetos" != "haiku" && \
2289         probe_target_compiler i386-softmmu; then
2290     roms="pc-bios/optionrom"
2291     config_mak=pc-bios/optionrom/config.mak
2292     echo "# Automatically generated by configure - do not modify" > $config_mak
2293     echo "TOPSRC_DIR=$source_path" >> $config_mak
2294     write_target_makefile >> $config_mak
2295 fi
2296
2297 if have_target ppc-softmmu ppc64-softmmu && \
2298         probe_target_compiler ppc-softmmu; then
2299     roms="$roms pc-bios/vof"
2300     config_mak=pc-bios/vof/config.mak
2301     echo "# Automatically generated by configure - do not modify" > $config_mak
2302     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
2303     write_target_makefile >> $config_mak
2304 fi
2305
2306 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
2307 # (which is the lowest architecture level that Clang supports)
2308 if have_target s390x-softmmu && probe_target_compiler s390x-softmmu; then
2309   write_c_skeleton
2310   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
2311   has_z900=$?
2312   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
2313     if [ $has_z900 != 0 ]; then
2314       echo "WARNING: Your compiler does not support the z900!"
2315       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2316     fi
2317     roms="$roms pc-bios/s390-ccw"
2318     config_mak=pc-bios/s390-ccw/config-host.mak
2319     echo "# Automatically generated by configure - do not modify" > $config_mak
2320     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
2321     write_target_makefile >> $config_mak
2322     # SLOF is required for building the s390-ccw firmware on s390x,
2323     # since it is using the libnet code from SLOF for network booting.
2324     git_submodules="${git_submodules} roms/SLOF"
2325   fi
2326 fi
2327
2328 #######################################
2329 # generate config-host.mak
2330
2331 if ! (GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2332     exit 1
2333 fi
2334
2335 config_host_mak="config-host.mak"
2336
2337 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2338 echo >> $config_host_mak
2339
2340 echo all: >> $config_host_mak
2341 echo "GIT=$git" >> $config_host_mak
2342 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2343 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2344
2345 if test "$debug_tcg" = "yes" ; then
2346   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2347 fi
2348 if test "$mingw32" = "yes" ; then
2349   echo "CONFIG_WIN32=y" >> $config_host_mak
2350   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
2351   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
2352   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
2353 else
2354   echo "CONFIG_POSIX=y" >> $config_host_mak
2355 fi
2356
2357 if test "$linux" = "yes" ; then
2358   echo "CONFIG_LINUX=y" >> $config_host_mak
2359 fi
2360
2361 if test "$darwin" = "yes" ; then
2362   echo "CONFIG_DARWIN=y" >> $config_host_mak
2363 fi
2364
2365 if test "$solaris" = "yes" ; then
2366   echo "CONFIG_SOLARIS=y" >> $config_host_mak
2367 fi
2368 if test "$static" = "yes" ; then
2369   echo "CONFIG_STATIC=y" >> $config_host_mak
2370 fi
2371 echo "SRC_PATH=$source_path" >> $config_host_mak
2372 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2373 if test "$modules" = "yes"; then
2374   echo "CONFIG_MODULES=y" >> $config_host_mak
2375 fi
2376
2377 # XXX: suppress that
2378 if [ "$bsd" = "yes" ] ; then
2379   echo "CONFIG_BSD=y" >> $config_host_mak
2380 fi
2381
2382 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2383
2384 if test "$have_asan_iface_fiber" = "yes" ; then
2385     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2386 fi
2387
2388 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2389     echo "CONFIG_TSAN=y" >> $config_host_mak
2390 fi
2391
2392 if test "$plugins" = "yes" ; then
2393     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2394 fi
2395
2396 if test -n "$gdb_bin"; then
2397     gdb_version=$($gdb_bin --version | head -n 1)
2398     if version_ge ${gdb_version##* } 9.1; then
2399         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2400     else
2401         gdb_bin=""
2402     fi
2403 fi
2404
2405 if test "$container" != no; then
2406     echo "ENGINE=$container" >> $config_host_mak
2407 fi
2408 echo "ROMS=$roms" >> $config_host_mak
2409 echo "MAKE=$make" >> $config_host_mak
2410 echo "PYTHON=$python" >> $config_host_mak
2411 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2412 echo "MESON=$meson" >> $config_host_mak
2413 echo "NINJA=$ninja" >> $config_host_mak
2414 echo "CC=$cc" >> $config_host_mak
2415 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2416 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2417 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2418 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2419 echo "GLIB_BINDIR=$glib_bindir" >> $config_host_mak
2420 echo "GLIB_VERSION=$(pkg-config --modversion glib-2.0)" >> $config_host_mak
2421 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2422 echo "EXESUF=$EXESUF" >> $config_host_mak
2423
2424 # use included Linux headers
2425 if test "$linux" = "yes" ; then
2426   mkdir -p linux-headers
2427   case "$cpu" in
2428   i386|x86_64)
2429     linux_arch=x86
2430     ;;
2431   ppc|ppc64)
2432     linux_arch=powerpc
2433     ;;
2434   s390x)
2435     linux_arch=s390
2436     ;;
2437   aarch64)
2438     linux_arch=arm64
2439     ;;
2440   loongarch*)
2441     linux_arch=loongarch
2442     ;;
2443   mips64)
2444     linux_arch=mips
2445     ;;
2446   *)
2447     # For most CPUs the kernel architecture name and QEMU CPU name match.
2448     linux_arch="$cpu"
2449     ;;
2450   esac
2451     # For non-KVM architectures we will not have asm headers
2452     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2453       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2454     fi
2455 fi
2456
2457 for target in $target_list; do
2458     target_dir="$target"
2459     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2460     mkdir -p "$target_dir"
2461     case $target in
2462         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2463         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2464     esac
2465 done
2466
2467 if test "$default_targets" = "yes"; then
2468   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2469 fi
2470
2471 if test "$ccache_cpp2" = "yes"; then
2472   echo "export CCACHE_CPP2=y" >> $config_host_mak
2473 fi
2474
2475 if test "$safe_stack" = "yes"; then
2476   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
2477 fi
2478
2479 # tests/tcg configuration
2480 (config_host_mak=tests/tcg/config-host.mak
2481 mkdir -p tests/tcg
2482 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2483 echo "SRC_PATH=$source_path" >> $config_host_mak
2484 echo "HOST_CC=$host_cc" >> $config_host_mak
2485
2486 # versioned checked in the main config_host.mak above
2487 if test -n "$gdb_bin"; then
2488     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2489 fi
2490 if test "$plugins" = "yes" ; then
2491     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2492 fi
2493
2494 tcg_tests_targets=
2495 for target in $target_list; do
2496   arch=${target%%-*}
2497
2498   case $target in
2499     xtensa*-linux-user)
2500       # the toolchain is not complete with headers, only build softmmu tests
2501       continue
2502       ;;
2503     *-softmmu)
2504       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
2505       qemu="qemu-system-$arch"
2506       ;;
2507     *-linux-user|*-bsd-user)
2508       qemu="qemu-$arch"
2509       ;;
2510   esac
2511
2512   if probe_target_compiler $target || test -n "$container_image"; then
2513       test -n "$container_image" && build_static=y
2514       mkdir -p "tests/tcg/$target"
2515       config_target_mak=tests/tcg/$target/config-target.mak
2516       ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
2517       echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
2518       echo "TARGET_NAME=$arch" >> "$config_target_mak"
2519       echo "TARGET=$target" >> "$config_target_mak"
2520       write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
2521       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
2522       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
2523       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
2524       tcg_tests_targets="$tcg_tests_targets $target"
2525   fi
2526 done
2527 echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak)
2528
2529 if test "$skip_meson" = no; then
2530   cross="config-meson.cross.new"
2531   meson_quote() {
2532     test $# = 0 && return
2533     echo "'$(echo $* | sed "s/ /','/g")'"
2534   }
2535
2536   echo "# Automatically generated by configure - do not modify" > $cross
2537   echo "[properties]" >> $cross
2538
2539   # unroll any custom device configs
2540   for a in $device_archs; do
2541       eval "c=\$devices_${a}"
2542       echo "${a}-softmmu = '$c'" >> $cross
2543   done
2544
2545   echo "[built-in options]" >> $cross
2546   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2547   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2548   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2549   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2550   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2551   echo "[binaries]" >> $cross
2552   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2553   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2554   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2555   echo "ar = [$(meson_quote $ar)]" >> $cross
2556   echo "nm = [$(meson_quote $nm)]" >> $cross
2557   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
2558   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2559   if has $sdl2_config; then
2560     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2561   fi
2562   echo "strip = [$(meson_quote $strip)]" >> $cross
2563   echo "widl = [$(meson_quote $widl)]" >> $cross
2564   echo "windres = [$(meson_quote $windres)]" >> $cross
2565   echo "windmc = [$(meson_quote $windmc)]" >> $cross
2566   if test "$cross_compile" = "yes"; then
2567     cross_arg="--cross-file config-meson.cross"
2568     echo "[host_machine]" >> $cross
2569     echo "system = '$targetos'" >> $cross
2570     case "$cpu" in
2571         i386)
2572             echo "cpu_family = 'x86'" >> $cross
2573             ;;
2574         *)
2575             echo "cpu_family = '$cpu'" >> $cross
2576             ;;
2577     esac
2578     echo "cpu = '$cpu'" >> $cross
2579     if test "$bigendian" = "yes" ; then
2580         echo "endian = 'big'" >> $cross
2581     else
2582         echo "endian = 'little'" >> $cross
2583     fi
2584   else
2585     cross_arg="--native-file config-meson.cross"
2586   fi
2587   mv $cross config-meson.cross
2588
2589   rm -rf meson-private meson-info meson-logs
2590
2591   # Built-in options
2592   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2593   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2594   test "$pie" = no && meson_option_add -Db_pie=false
2595   test "$werror" = yes && meson_option_add -Dwerror=true
2596
2597   # QEMU options
2598   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2599   test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2600   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2601   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2602   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2603   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2604   test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server"
2605   run_meson() {
2606     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2607   }
2608   eval run_meson $meson_options
2609   if test "$?" -ne 0 ; then
2610       error_exit "meson setup failed"
2611   fi
2612 else
2613   if test -f meson-private/cmd_line.txt; then
2614     # Adjust old command line options whose type was changed
2615     # Avoids having to use "setup --wipe" when Meson is upgraded
2616     perl -i -ne '
2617       s/^gettext = true$/gettext = auto/;
2618       s/^gettext = false$/gettext = disabled/;
2619       /^b_staticpic/ && next;
2620       print;' meson-private/cmd_line.txt
2621   fi
2622 fi
2623
2624 # Save the configure command line for later reuse.
2625 cat <<EOD >config.status
2626 #!/bin/sh
2627 # Generated by configure.
2628 # Run this file to recreate the current configuration.
2629 # Compiler output produced by configure, useful for debugging
2630 # configure, is in config.log if it exists.
2631 EOD
2632
2633 preserve_env() {
2634     envname=$1
2635
2636     eval envval=\$$envname
2637
2638     if test -n "$envval"
2639     then
2640         echo "$envname='$envval'" >> config.status
2641         echo "export $envname" >> config.status
2642     else
2643         echo "unset $envname" >> config.status
2644     fi
2645 }
2646
2647 # Preserve various env variables that influence what
2648 # features/build target configure will detect
2649 preserve_env AR
2650 preserve_env AS
2651 preserve_env CC
2652 preserve_env CFLAGS
2653 preserve_env CXX
2654 preserve_env CXXFLAGS
2655 preserve_env LD
2656 preserve_env LDFLAGS
2657 preserve_env LD_LIBRARY_PATH
2658 preserve_env MAKE
2659 preserve_env NM
2660 preserve_env OBJCFLAGS
2661 preserve_env OBJCOPY
2662 preserve_env PATH
2663 preserve_env PKG_CONFIG
2664 preserve_env PKG_CONFIG_LIBDIR
2665 preserve_env PKG_CONFIG_PATH
2666 preserve_env PYTHON
2667 preserve_env SDL2_CONFIG
2668 preserve_env SMBD
2669 preserve_env STRIP
2670 preserve_env WIDL
2671 preserve_env WINDRES
2672 preserve_env WINDMC
2673
2674 printf "exec" >>config.status
2675 for i in "$0" "$@"; do
2676   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2677 done
2678 echo ' "$@"' >>config.status
2679 chmod +x config.status
2680
2681 rm -r "$TMPDIR1"