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