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