configure

   1 #!/bin/sh
   2 #
   3 # qemu configure script (c) 2003 Fabrice Bellard
   4 #
   5
   6 # Unset some variables known to interfere with behavior of common tools,
   7 # just as autoconf does.
   8 CLICOLOR_FORCE= GREP_OPTIONS=
   9 unset CLICOLOR_FORCE GREP_OPTIONS
  10
  11 # Don't allow CCACHE, if present, to use cached results of compile tests!
  12 export CCACHE_RECACHE=yes
  13
  14 # make source path absolute
  15 source_path=$(cd "$(dirname -- "$0")"; pwd)
  16
  17 if test "$PWD" = "$source_path"
  18 then
  19     echo "Using './build' as the directory for build output"
  20
  21     MARKER=build/auto-created-by-configure
  22
  23     if test -e build
  24     then
  25         if test -f $MARKER
  26         then
  27            rm -rf build
  28         else
  29             echo "ERROR: ./build dir already exists and was not previously created by configure"
  30             exit 1
  31         fi
  32     fi
  33
  34     if ! mkdir build || ! touch $MARKER
  35     then
  36         echo "ERROR: Could not create ./build directory. Check the permissions on"
  37         echo "your source directory, or try doing an out-of-tree build."
  38         exit 1
  39     fi
  40
  41     cat > GNUmakefile <<'EOF'
  42 # This file is auto-generated by configure to support in-source tree
  43 # 'make' command invocation
  44
  45 ifeq ($(MAKECMDGOALS),)
  46 recurse: all
  47 endif
  48
  49 .NOTPARALLEL: %
  50 %: force
  51         @echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
  52         @$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
  53         @if test "$(MAKECMDGOALS)" = "distclean" && \
  54             test -e build/auto-created-by-configure ; \
  55         then \
  56             rm -rf build GNUmakefile ; \
  57         fi
  58 force: ;
  59 .PHONY: force
  60 GNUmakefile: ;
  61
  62 EOF
  63     cd build
  64     exec "$source_path/configure" "$@"
  65 fi
  66
  67 # Temporary directory used for files created while
  68 # configure runs. Since it is in the build directory
  69 # we can safely blow away any previous version of it
  70 # (and we need not jump through hoops to try to delete
  71 # it when configure exits.)
  72 TMPDIR1="config-temp"
  73 rm -rf "${TMPDIR1}"
  74 if ! mkdir -p "${TMPDIR1}"; then
  75     echo "ERROR: failed to create temporary directory"
  76     exit 1
  77 fi
  78
  79 TMPB="qemu-conf"
  80 TMPC="${TMPDIR1}/${TMPB}.c"
  81 TMPO="${TMPDIR1}/${TMPB}.o"
  82 TMPM="${TMPDIR1}/${TMPB}.m"
  83 TMPE="${TMPDIR1}/${TMPB}.exe"
  84
  85 rm -f config.log
  86
  87 # Print a helpful header at the top of config.log
  88 echo "# QEMU configure log $(date)" >> config.log
  89 printf "# Configured with:" >> config.log
  90 # repeat the invocation to log and stdout for CI
  91 invoke=$(printf " '%s'" "$0" "$@")
  92 test -n "$GITLAB_CI" && echo "configuring with: $invoke"
  93 { echo "$invoke"; echo; echo "#"; } >> config.log
  94
  95 quote_sh() {
  96     printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
  97 }
  98
  99 print_error() {
 100     (echo
 101     echo "ERROR: $1"
 102     while test -n "$2"; do
 103         echo "       $2"
 104         shift
 105     done
 106     echo) >&2
 107 }
 108
 109 error_exit() {
 110     print_error "$@"
 111     exit 1
 112 }
 113
 114 do_compiler() {
 115   # Run the compiler, capturing its output to the log. First argument
 116   # is compiler binary to execute.
 117   compiler="$1"
 118   shift
 119   if test -n "$BASH_VERSION"; then eval '
 120       echo >>config.log "
 121 funcs: ${FUNCNAME[*]}
 122 lines: ${BASH_LINENO[*]}"
 123   '; fi
 124   echo $compiler "$@" >> config.log
 125   $compiler "$@" >> config.log 2>&1 || return $?
 126 }
 127
 128 do_compiler_werror() {
 129     # Run the compiler, capturing its output to the log. First argument
 130     # is compiler binary to execute.
 131     compiler="$1"
 132     shift
 133     if test -n "$BASH_VERSION"; then eval '
 134         echo >>config.log "
 135 funcs: ${FUNCNAME[*]}
 136 lines: ${BASH_LINENO[*]}"
 137     '; fi
 138     echo $compiler "$@" >> config.log
 139     $compiler "$@" >> config.log 2>&1 || return $?
 140     # Test passed. If this is an --enable-werror build, rerun
 141     # the test with -Werror and bail out if it fails. This
 142     # makes warning-generating-errors in configure test code
 143     # obvious to developers.
 144     if test "$werror" != "yes"; then
 145         return 0
 146     fi
 147     # Don't bother rerunning the compile if we were already using -Werror
 148     case "$*" in
 149         *-Werror*)
 150            return 0
 151         ;;
 152     esac
 153     echo $compiler -Werror "$@" >> config.log
 154     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 155     error_exit "configure test passed without -Werror but failed with -Werror." \
 156         "This is probably a bug in the configure script. The failing command" \
 157         "will be at the bottom of config.log." \
 158         "You can run configure with --disable-werror to bypass this check."
 159 }
 160
 161 do_cc() {
 162     do_compiler_werror "$cc" $CPU_CFLAGS "$@"
 163 }
 164
 165 do_objc() {
 166     do_compiler_werror "$objcc" $CPU_CFLAGS "$@"
 167 }
 168
 169 # Append $2 to the variable named $1, with space separation
 170 add_to() {
 171     eval $1=\${$1:+\"\$$1 \"}\$2
 172 }
 173
 174 compile_object() {
 175   local_cflags="$1"
 176   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 177 }
 178
 179 compile_prog() {
 180   local_cflags="$1"
 181   local_ldflags="$2"
 182   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 183       $LDFLAGS $EXTRA_LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 184 }
 185
 186 # symbolically link $1 to $2.  Portable version of "ln -sf".
 187 symlink() {
 188   rm -rf "$2"
 189   mkdir -p "$(dirname "$2")"
 190   ln -s "$1" "$2"
 191 }
 192
 193 # check whether a command is available to this shell (may be either an
 194 # executable or a builtin)
 195 has() {
 196     type "$1" >/dev/null 2>&1
 197 }
 198
 199 version_ge () {
 200     local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
 201     local_ver2=$(echo "$2" | tr . ' ')
 202     while true; do
 203         set x $local_ver1
 204         local_first=${2-0}
 205         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 206         shift ${2:+2}
 207         local_ver1=$*
 208         set x $local_ver2
 209         # the second argument finished, the first must be greater or equal
 210         test $# = 1 && return 0
 211         test $local_first -lt $2 && return 1
 212         test $local_first -gt $2 && return 0
 213         shift ${2:+2}
 214         local_ver2=$*
 215     done
 216 }
 217
 218 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 219 then
 220   error_exit "main directory cannot contain spaces nor colons"
 221 fi
 222
 223 # default parameters
 224 cpu=""
 225 static="no"
 226 cross_compile="no"
 227 cross_prefix=""
 228 host_cc="cc"
 229 stack_protector=""
 230 safe_stack=""
 231 use_containers="yes"
 232 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 233 gdb_arches=""
 234 glib_has_gslice="no"
 235
 236 if test -e "$source_path/.git"
 237 then
 238     git_submodules_action="update"
 239 else
 240     git_submodules_action="ignore"
 241 fi
 242
 243 git_submodules="ui/keycodemapdb"
 244 git="git"
 245
 246 # Don't accept a target_list environment variable.
 247 unset target_list
 248 unset target_list_exclude
 249
 250 # Default value for a variable defining feature "foo".
 251 #  * foo="no"  feature will only be used if --enable-foo arg is given
 252 #  * foo=""    feature will be searched for, and if found, will be used
 253 #              unless --disable-foo is given
 254 #  * foo="yes" this value will only be set by --enable-foo flag.
 255 #              feature will searched for,
 256 #              if not found, configure exits with error
 257 #
 258 # Always add --enable-foo and --disable-foo command line args.
 259 # Distributions want to ensure that several features are compiled in, and it
 260 # is impossible without a --enable-foo that exits if a feature is not found.
 261
 262 default_feature=""
 263 # parse CC options second
 264 for opt do
 265   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 266   case "$opt" in
 267       --without-default-features)
 268           default_feature="no"
 269   ;;
 270   esac
 271 done
 272
 273 EXTRA_CFLAGS=""
 274 EXTRA_CXXFLAGS=""
 275 EXTRA_OBJCFLAGS=""
 276 EXTRA_LDFLAGS=""
 277
 278 debug_tcg="no"
 279 sanitizers="no"
 280 tsan="no"
 281 fortify_source="yes"
 282 EXESUF=""
 283 modules="no"
 284 prefix="/usr/local"
 285 qemu_suffix="qemu"
 286 softmmu="yes"
 287 linux_user=""
 288 bsd_user=""
 289 pie=""
 290 coroutine=""
 291 plugins="$default_feature"
 292 meson=""
 293 ninja=""
 294 bindir="bin"
 295 skip_meson=no
 296 vfio_user_server="disabled"
 297
 298 # The following Meson options are handled manually (still they
 299 # are included in the automatically generated help message)
 300
 301 # 1. Track which submodules are needed
 302 fdt="auto"
 303
 304 # 2. Automatically enable/disable other options
 305 tcg="auto"
 306 cfi="false"
 307
 308 # parse CC options second
 309 for opt do
 310   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 311   case "$opt" in
 312   --cross-prefix=*) cross_prefix="$optarg"
 313                     cross_compile="yes"
 314   ;;
 315   --cc=*) CC="$optarg"
 316   ;;
 317   --cxx=*) CXX="$optarg"
 318   ;;
 319   --cpu=*) cpu="$optarg"
 320   ;;
 321   --extra-cflags=*)
 322     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 323     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 324     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 325     ;;
 326   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 327   ;;
 328   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 329   ;;
 330   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 331   ;;
 332   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 333   ;;
 334   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 335                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 336   ;;
 337   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 338                 eval "cross_cc_${cc_arch}=\$optarg"
 339   ;;
 340   --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
 341   ;;
 342   --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
 343                     eval "cross_prefix_${cc_arch}=\$optarg"
 344   ;;
 345   esac
 346 done
 347
 348 # Preferred compiler:
 349 #  ${CC} (if set)
 350 #  ${cross_prefix}gcc (if cross-prefix specified)
 351 #  system compiler
 352 if test -z "${CC}${cross_prefix}"; then
 353   cc="$host_cc"
 354 else
 355   cc="${CC-${cross_prefix}gcc}"
 356 fi
 357
 358 if test -z "${CXX}${cross_prefix}"; then
 359   cxx="c++"
 360 else
 361   cxx="${CXX-${cross_prefix}g++}"
 362 fi
 363
 364 ar="${AR-${cross_prefix}ar}"
 365 as="${AS-${cross_prefix}as}"
 366 ccas="${CCAS-$cc}"
 367 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 368 ld="${LD-${cross_prefix}ld}"
 369 ranlib="${RANLIB-${cross_prefix}ranlib}"
 370 nm="${NM-${cross_prefix}nm}"
 371 smbd="$SMBD"
 372 strip="${STRIP-${cross_prefix}strip}"
 373 widl="${WIDL-${cross_prefix}widl}"
 374 windres="${WINDRES-${cross_prefix}windres}"
 375 windmc="${WINDMC-${cross_prefix}windmc}"
 376 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 377 query_pkg_config() {
 378     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 379 }
 380 pkg_config=query_pkg_config
 381 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 382
 383 # default flags for all hosts
 384 # We use -fwrapv to tell the compiler that we require a C dialect where
 385 # left shift of signed integers is well defined and has the expected
 386 # 2s-complement style results. (Both clang and gcc agree that it
 387 # provides these semantics.)
 388 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 389 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 390 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 391 QEMU_CFLAGS="-Wstrict-prototypes $QEMU_CFLAGS"
 392 QEMU_CFLAGS="-Wno-unused-parameter $QEMU_CFLAGS"
 393 QEMU_CFLAGS="-Wno-missing-field-initializers $QEMU_CFLAGS"
 394 QEMU_CFLAGS="-Wno-sign-compare $QEMU_CFLAGS"
 395 QEMU_CFLAGS="-Wno-override-init $QEMU_CFLAGS"
 396 QEMU_CFLAGS="-Wno-error=cast-function-type $QEMU_CFLAGS"
 397 QEMU_CFLAGS="-Wno-error=format $QEMU_CFLAGS"
 398 QEMU_CFLAGS="-Wno-error=format-extra-args $QEMU_CFLAGS"
 399 QEMU_CFLAGS="-Wmissing-format-attribute $QEMU_CFLAGS"
 400 QEMU_CFLAGS="-Wno-error=parentheses $QEMU_CFLAGS"
 401 QEMU_CFLAGS="-Wextra $QEMU_CFLAGS"
 402
 403 QEMU_LDFLAGS=
 404
 405 # Flags that are needed during configure but later taken care of by Meson
 406 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 407 CONFIGURE_LDFLAGS=
 408
 409 check_define() {
 410 rm -f $TMPC
 411 cat > $TMPC <<EOF
 412 #if !defined($1)
 413 #error $1 not defined
 414 #endif
 415 int main(void) { return 0; }
 416 EOF
 417   compile_object
 418 }
 419
 420 check_include() {
 421 cat > $TMPC <<EOF
 422 #include <$1>
 423 int main(void) { return 0; }
 424 EOF
 425   compile_object
 426 }
 427
 428 write_c_skeleton() {
 429     cat > $TMPC <<EOF
 430 int main(void) { return 0; }
 431 EOF
 432 }
 433
 434 if check_define __linux__ ; then
 435   targetos=linux
 436 elif check_define _WIN32 ; then
 437   targetos=windows
 438 elif check_define __OpenBSD__ ; then
 439   targetos=openbsd
 440 elif check_define __sun__ ; then
 441   targetos=sunos
 442 elif check_define __HAIKU__ ; then
 443   targetos=haiku
 444 elif check_define __FreeBSD__ ; then
 445   targetos=freebsd
 446 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 447   targetos=gnu/kfreebsd
 448 elif check_define __DragonFly__ ; then
 449   targetos=dragonfly
 450 elif check_define __NetBSD__; then
 451   targetos=netbsd
 452 elif check_define __APPLE__; then
 453   targetos=darwin
 454 else
 455   # This is a fatal error, but don't report it yet, because we
 456   # might be going to just print the --help text, or it might
 457   # be the result of a missing compiler.
 458   targetos=bogus
 459 fi
 460
 461 # OS specific
 462
 463 mingw32="no"
 464 bsd="no"
 465 linux="no"
 466 solaris="no"
 467 case $targetos in
 468 windows)
 469   mingw32="yes"
 470   plugins="no"
 471   pie="no"
 472 ;;
 473 gnu/kfreebsd)
 474   bsd="yes"
 475 ;;
 476 freebsd)
 477   bsd="yes"
 478   make="${MAKE-gmake}"
 479   # needed for kinfo_getvmmap(3) in libutil.h
 480 ;;
 481 dragonfly)
 482   bsd="yes"
 483   make="${MAKE-gmake}"
 484 ;;
 485 netbsd)
 486   bsd="yes"
 487   make="${MAKE-gmake}"
 488 ;;
 489 openbsd)
 490   bsd="yes"
 491   make="${MAKE-gmake}"
 492 ;;
 493 darwin)
 494   bsd="yes"
 495   darwin="yes"
 496   # Disable attempts to use ObjectiveC features in os/object.h since they
 497   # won't work when we're compiling with gcc as a C compiler.
 498   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 499 ;;
 500 sunos)
 501   solaris="yes"
 502   make="${MAKE-gmake}"
 503 # needed for CMSG_ macros in sys/socket.h
 504   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 505 # needed for TIOCWIN* defines in termios.h
 506   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 507 ;;
 508 haiku)
 509   pie="no"
 510   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 511 ;;
 512 linux)
 513   linux="yes"
 514 ;;
 515 esac
 516
 517 if test ! -z "$cpu" ; then
 518   # command line argument
 519   :
 520 elif check_define __i386__ ; then
 521   cpu="i386"
 522 elif check_define __x86_64__ ; then
 523   if check_define __ILP32__ ; then
 524     cpu="x32"
 525   else
 526     cpu="x86_64"
 527   fi
 528 elif check_define __sparc__ ; then
 529   if check_define __arch64__ ; then
 530     cpu="sparc64"
 531   else
 532     cpu="sparc"
 533   fi
 534 elif check_define _ARCH_PPC ; then
 535   if check_define _ARCH_PPC64 ; then
 536     if check_define _LITTLE_ENDIAN ; then
 537       cpu="ppc64le"
 538     else
 539       cpu="ppc64"
 540     fi
 541   else
 542     cpu="ppc"
 543   fi
 544 elif check_define __mips__ ; then
 545   if check_define __mips64 ; then
 546     cpu="mips64"
 547   else
 548     cpu="mips"
 549   fi
 550 elif check_define __s390__ ; then
 551   if check_define __s390x__ ; then
 552     cpu="s390x"
 553   else
 554     cpu="s390"
 555   fi
 556 elif check_define __riscv ; then
 557   cpu="riscv"
 558 elif check_define __arm__ ; then
 559   cpu="arm"
 560 elif check_define __aarch64__ ; then
 561   cpu="aarch64"
 562 elif check_define __loongarch64 ; then
 563   cpu="loongarch64"
 564 else
 565   # Using uname is really broken, but it is just a fallback for architectures
 566   # that are going to use TCI anyway
 567   cpu=$(uname -m)
 568   echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
 569 fi
 570
 571 # Normalise host CPU name and set multilib cflags.  The canonicalization
 572 # isn't really necessary, because the architectures that we check for
 573 # should not hit the 'uname -m' case, but better safe than sorry.
 574 # Note that this case should only have supported host CPUs, not guests.
 575 case "$cpu" in
 576   armv*b|armv*l|arm)
 577     cpu="arm" ;;
 578
 579   i386|i486|i586|i686)
 580     cpu="i386"
 581     CPU_CFLAGS="-m32" ;;
 582   x32)
 583     cpu="x86_64"
 584     CPU_CFLAGS="-mx32" ;;
 585   x86_64|amd64)
 586     cpu="x86_64"
 587     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 588     # If we truly care, we should simply detect this case at
 589     # runtime and generate the fallback to serial emulation.
 590     CPU_CFLAGS="-m64 -mcx16" ;;
 591
 592   mips*)
 593     cpu="mips" ;;
 594
 595   ppc)
 596     CPU_CFLAGS="-m32" ;;
 597   ppc64)
 598     CPU_CFLAGS="-m64 -mbig-endian" ;;
 599   ppc64le)
 600     cpu="ppc64"
 601     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 602
 603   s390)
 604     CPU_CFLAGS="-m31" ;;
 605   s390x)
 606     CPU_CFLAGS="-m64" ;;
 607
 608   sparc|sun4[cdmuv])
 609     cpu="sparc"
 610     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 611   sparc64)
 612     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 613 esac
 614
 615 : ${make=${MAKE-make}}
 616
 617
 618 check_py_version() {
 619     # We require python >= 3.6.
 620     # NB: a True python conditional creates a non-zero return code (Failure)
 621     "$1" -c 'import sys; sys.exit(sys.version_info < (3,6))'
 622 }
 623
 624 python=
 625 first_python=
 626 if test -z "${PYTHON}"; then
 627     explicit_python=no
 628     # A bare 'python' is traditionally python 2.x, but some distros
 629     # have it as python 3.x, so check in both places.
 630     for binary in python3 python python3.11 python3.10 python3.9 python3.8 python3.7 python3.6; do
 631         if has "$binary"; then
 632             python=$(command -v "$binary")
 633             if check_py_version "$python"; then
 634                 # This one is good.
 635                 first_python=
 636                 break
 637             else
 638                 first_python=$python
 639             fi
 640         fi
 641     done
 642 else
 643     # Same as above, but only check the environment variable.
 644     has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
 645     python=$(command -v "$PYTHON")
 646     explicit_python=yes
 647     if check_py_version "$python"; then
 648         # This one is good.
 649         first_python=
 650     else
 651         first_python=$first_python
 652     fi
 653 fi
 654
 655 # Check for ancillary tools used in testing
 656 genisoimage=
 657 for binary in genisoimage mkisofs
 658 do
 659     if has $binary
 660     then
 661         genisoimage=$(command -v "$binary")
 662         break
 663     fi
 664 done
 665
 666 # Default objcc to clang if available, otherwise use CC
 667 if has clang; then
 668   objcc=clang
 669 else
 670   objcc="$cc"
 671 fi
 672
 673 if test "$mingw32" = "yes" ; then
 674   EXESUF=".exe"
 675   # MinGW needs -mthreads for TLS and macro _MT.
 676   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 677   prefix="/qemu"
 678   bindir=""
 679   qemu_suffix=""
 680 fi
 681
 682 werror=""
 683
 684 meson_option_build_array() {
 685   printf '['
 686   (if test "$targetos" = windows; then
 687     IFS=\;
 688   else
 689     IFS=:
 690   fi
 691   for e in $1; do
 692     printf '"""'
 693     # backslash escape any '\' and '"' characters
 694     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
 695     printf '""",'
 696   done)
 697   printf ']\n'
 698 }
 699
 700 . "$source_path/scripts/meson-buildoptions.sh"
 701
 702 meson_options=
 703 meson_option_add() {
 704   meson_options="$meson_options $(quote_sh "$1")"
 705 }
 706 meson_option_parse() {
 707   meson_options="$meson_options $(_meson_option_parse "$@")"
 708   if test $? -eq 1; then
 709     echo "ERROR: unknown option $1"
 710     echo "Try '$0 --help' for more information"
 711     exit 1
 712   fi
 713 }
 714
 715 for opt do
 716   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 717   case "$opt" in
 718   --help|-h) show_help=yes
 719   ;;
 720   --version|-V) exec cat "$source_path/VERSION"
 721   ;;
 722   --prefix=*) prefix="$optarg"
 723   ;;
 724   --cross-prefix=*)
 725   ;;
 726   --cc=*)
 727   ;;
 728   --host-cc=*) host_cc="$optarg"
 729   ;;
 730   --cxx=*)
 731   ;;
 732   --objcc=*) objcc="$optarg"
 733   ;;
 734   --make=*) make="$optarg"
 735   ;;
 736   --install=*)
 737   ;;
 738   --python=*) python="$optarg" ; explicit_python=yes
 739   ;;
 740   --skip-meson) skip_meson=yes
 741   ;;
 742   --meson=*) meson="$optarg"
 743   ;;
 744   --ninja=*) ninja="$optarg"
 745   ;;
 746   --smbd=*) smbd="$optarg"
 747   ;;
 748   --extra-cflags=*)
 749   ;;
 750   --extra-cxxflags=*)
 751   ;;
 752   --extra-objcflags=*)
 753   ;;
 754   --extra-ldflags=*)
 755   ;;
 756   --cross-cc-*)
 757   ;;
 758   --cross-prefix-*)
 759   ;;
 760   --enable-debug-info) meson_option_add -Ddebug=true
 761   ;;
 762   --disable-debug-info) meson_option_add -Ddebug=false
 763   ;;
 764   --enable-modules)
 765       modules="yes"
 766   ;;
 767   --disable-modules)
 768       modules="no"
 769   ;;
 770   --cpu=*)
 771   ;;
 772   --target-list=*) target_list="$optarg"
 773                    if test "$target_list_exclude"; then
 774                        error_exit "Can't mix --target-list with --target-list-exclude"
 775                    fi
 776   ;;
 777   --target-list-exclude=*) target_list_exclude="$optarg"
 778                    if test "$target_list"; then
 779                        error_exit "Can't mix --target-list-exclude with --target-list"
 780                    fi
 781   ;;
 782   --with-default-devices) meson_option_add -Ddefault_devices=true
 783   ;;
 784   --without-default-devices) meson_option_add -Ddefault_devices=false
 785   ;;
 786   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 787   ;;
 788   --with-devices-*) device_arch=${opt#--with-devices-};
 789                     device_arch=${device_arch%%=*}
 790                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 791                     if test -f "$cf"; then
 792                         device_archs="$device_archs $device_arch"
 793                         eval "devices_${device_arch}=\$optarg"
 794                     else
 795                         error_exit "File $cf does not exist"
 796                     fi
 797   ;;
 798   --without-default-features) # processed above
 799   ;;
 800   --static)
 801     static="yes"
 802     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 803   ;;
 804   --bindir=*) bindir="$optarg"
 805   ;;
 806   --with-suffix=*) qemu_suffix="$optarg"
 807   ;;
 808   --host=*|--build=*|\
 809   --disable-dependency-tracking|\
 810   --sbindir=*|--sharedstatedir=*|\
 811   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 812   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 813     # These switches are silently ignored, for compatibility with
 814     # autoconf-generated configure scripts. This allows QEMU's
 815     # configure to be used by RPM and similar macros that set
 816     # lots of directory switches by default.
 817   ;;
 818   --enable-debug-tcg) debug_tcg="yes"
 819   ;;
 820   --disable-debug-tcg) debug_tcg="no"
 821   ;;
 822   --enable-debug)
 823       # Enable debugging options that aren't excessively noisy
 824       debug_tcg="yes"
 825       meson_option_parse --enable-debug-mutex ""
 826       meson_option_add -Doptimization=0
 827       fortify_source="no"
 828   ;;
 829   --enable-sanitizers) sanitizers="yes"
 830   ;;
 831   --disable-sanitizers) sanitizers="no"
 832   ;;
 833   --enable-tsan) tsan="yes"
 834   ;;
 835   --disable-tsan) tsan="no"
 836   ;;
 837   --disable-tcg) tcg="disabled"
 838                  plugins="no"
 839   ;;
 840   --enable-tcg) tcg="enabled"
 841   ;;
 842   --disable-system) softmmu="no"
 843   ;;
 844   --enable-system) softmmu="yes"
 845   ;;
 846   --disable-user)
 847       linux_user="no" ;
 848       bsd_user="no" ;
 849   ;;
 850   --enable-user) ;;
 851   --disable-linux-user) linux_user="no"
 852   ;;
 853   --enable-linux-user) linux_user="yes"
 854   ;;
 855   --disable-bsd-user) bsd_user="no"
 856   ;;
 857   --enable-bsd-user) bsd_user="yes"
 858   ;;
 859   --enable-pie) pie="yes"
 860   ;;
 861   --disable-pie) pie="no"
 862   ;;
 863   --enable-werror) werror="yes"
 864   ;;
 865   --disable-werror) werror="no"
 866   ;;
 867   --enable-stack-protector) stack_protector="yes"
 868   ;;
 869   --disable-stack-protector) stack_protector="no"
 870   ;;
 871   --enable-safe-stack) safe_stack="yes"
 872   ;;
 873   --disable-safe-stack) safe_stack="no"
 874   ;;
 875   --enable-cfi)
 876       cfi="true";
 877       meson_option_add -Db_lto=true
 878   ;;
 879   --disable-cfi) cfi="false"
 880   ;;
 881   --disable-fdt) fdt="disabled"
 882   ;;
 883   --enable-fdt) fdt="enabled"
 884   ;;
 885   --enable-fdt=git) fdt="internal"
 886   ;;
 887   --enable-fdt=*) fdt="$optarg"
 888   ;;
 889   --with-coroutine=*) coroutine="$optarg"
 890   ;;
 891   --with-git=*) git="$optarg"
 892   ;;
 893   --with-git-submodules=*)
 894       git_submodules_action="$optarg"
 895   ;;
 896   --enable-plugins) if test "$mingw32" = "yes"; then
 897                         error_exit "TCG plugins not currently supported on Windows platforms"
 898                     else
 899                         plugins="yes"
 900                     fi
 901   ;;
 902   --disable-plugins) plugins="no"
 903   ;;
 904   --enable-containers) use_containers="yes"
 905   ;;
 906   --disable-containers) use_containers="no"
 907   ;;
 908   --gdb=*) gdb_bin="$optarg"
 909   ;;
 910   --enable-vfio-user-server) vfio_user_server="enabled"
 911   ;;
 912   --disable-vfio-user-server) vfio_user_server="disabled"
 913   ;;
 914   # everything else has the same name in configure and meson
 915   --*) meson_option_parse "$opt" "$optarg"
 916   ;;
 917   esac
 918 done
 919
 920 # test for any invalid configuration combinations
 921 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
 922     error_exit "Can't enable plugins on non-TCG builds"
 923 fi
 924
 925 case $git_submodules_action in
 926     update|validate)
 927         if test ! -e "$source_path/.git"; then
 928             echo "ERROR: cannot $git_submodules_action git submodules without .git"
 929             exit 1
 930         fi
 931     ;;
 932     ignore)
 933         if ! test -f "$source_path/ui/keycodemapdb/README"
 934         then
 935             echo
 936             echo "ERROR: missing GIT submodules"
 937             echo
 938             if test -e "$source_path/.git"; then
 939                 echo "--with-git-submodules=ignore specified but submodules were not"
 940                 echo "checked out.  Please initialize and update submodules."
 941             else
 942                 echo "This is not a GIT checkout but module content appears to"
 943                 echo "be missing. Do not use 'git archive' or GitHub download links"
 944                 echo "to acquire QEMU source archives. Non-GIT builds are only"
 945                 echo "supported with source archives linked from:"
 946                 echo
 947                 echo "  https://www.qemu.org/download/#source"
 948                 echo
 949                 echo "Developers working with GIT can use scripts/archive-source.sh"
 950                 echo "if they need to create valid source archives."
 951             fi
 952             echo
 953             exit 1
 954         fi
 955     ;;
 956     *)
 957         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
 958         exit 1
 959     ;;
 960 esac
 961
 962 default_target_list=""
 963 mak_wilds=""
 964
 965 if [ "$linux_user" != no ]; then
 966     if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then
 967         linux_user=yes
 968     elif [ "$linux_user" = yes ]; then
 969         error_exit "linux-user not supported on this architecture"
 970     fi
 971 fi
 972 if [ "$bsd_user" != no ]; then
 973     if [ "$bsd_user" = "" ]; then
 974         test $targetos = freebsd && bsd_user=yes
 975     fi
 976     if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
 977         error_exit "bsd-user not supported on this host OS"
 978     fi
 979 fi
 980 if [ "$softmmu" = "yes" ]; then
 981     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 982 fi
 983 if [ "$linux_user" = "yes" ]; then
 984     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 985 fi
 986 if [ "$bsd_user" = "yes" ]; then
 987     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 988 fi
 989
 990 for config in $mak_wilds; do
 991     target="$(basename "$config" .mak)"
 992     if echo "$target_list_exclude" | grep -vq "$target"; then
 993         default_target_list="${default_target_list} $target"
 994     fi
 995 done
 996
 997 if test x"$show_help" = x"yes" ; then
 998 cat << EOF
 999
1000 Usage: configure [options]
1001 Options: [defaults in brackets after descriptions]
1002
1003 Standard options:
1004   --help                   print this message
1005   --prefix=PREFIX          install in PREFIX [$prefix]
1006   --target-list=LIST       set target list (default: build all)
1007 $(echo Available targets: $default_target_list | \
1008   fold -s -w 53 | sed -e 's/^/                           /')
1009   --target-list-exclude=LIST exclude a set of targets from the default target-list
1010
1011 Advanced options (experts only):
1012   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1013   --cc=CC                  use C compiler CC [$cc]
1014   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1015                            build time
1016   --cxx=CXX                use C++ compiler CXX [$cxx]
1017   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1018   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
1019   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
1020   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
1021   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1022   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1023   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
1024   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
1025   --make=MAKE              use specified make [$make]
1026   --python=PYTHON          use specified python [$python]
1027   --meson=MESON            use specified meson [$meson]
1028   --ninja=NINJA            use specified ninja [$ninja]
1029   --smbd=SMBD              use specified smbd [$smbd]
1030   --with-git=GIT           use specified git [$git]
1031   --with-git-submodules=update   update git submodules (default if .git dir exists)
1032   --with-git-submodules=validate fail if git submodules are not up to date
1033   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1034   --static                 enable static build [$static]
1035   --bindir=PATH            install binaries in PATH
1036   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1037   --without-default-features default all --enable-* options to "disabled"
1038   --without-default-devices  do not include any device that is not needed to
1039                            start the emulator (only use if you are including
1040                            desired devices in configs/devices/)
1041   --with-devices-ARCH=NAME override default configs/devices
1042   --enable-debug           enable common debug build options
1043   --enable-sanitizers      enable default sanitizers
1044   --enable-tsan            enable thread sanitizer
1045   --disable-werror         disable compilation abort on warning
1046   --disable-stack-protector disable compiler-provided stack protection
1047   --cpu=CPU                Build for host CPU [$cpu]
1048   --with-coroutine=BACKEND coroutine backend. Supported options:
1049                            ucontext, sigaltstack, windows
1050   --enable-plugins
1051                            enable plugins via shared library loading
1052   --disable-containers     don't use containers for cross-building
1053   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1054 EOF
1055   meson_options_help
1056 cat << EOF
1057   system          all system emulation targets
1058   user            supported user emulation targets
1059   linux-user      all linux usermode emulation targets
1060   bsd-user        all BSD usermode emulation targets
1061   pie             Position Independent Executables
1062   modules         modules support (non-Windows)
1063   debug-tcg       TCG debugging (default is disabled)
1064   debug-info      debugging information
1065   safe-stack      SafeStack Stack Smash Protection. Depends on
1066                   clang/llvm and requires coroutine backend ucontext.
1067
1068 NOTE: The object files are built at the place where configure is launched
1069 EOF
1070 exit 0
1071 fi
1072
1073 # Remove old dependency files to make sure that they get properly regenerated
1074 rm -f ./*/config-devices.mak.d
1075
1076 if test -z "$python"
1077 then
1078     # If first_python is set, there was a binary somewhere even though
1079     # it was not suitable.  Use it for the error message.
1080     if test -n "$first_python"; then
1081         error_exit "Cannot use '$first_python', Python >= 3.6 is required." \
1082             "Use --python=/path/to/python to specify a supported Python."
1083     else
1084         error_exit "Python not found. Use --python=/path/to/python"
1085     fi
1086 fi
1087
1088 if ! has "$make"
1089 then
1090     error_exit "GNU make ($make) not found"
1091 fi
1092
1093 if ! check_py_version "$python"; then
1094   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1095       "Use --python=/path/to/python to specify a supported Python."
1096 fi
1097
1098 # Resolve PATH + suppress writing compiled files
1099 python="$(command -v "$python") -B"
1100
1101 has_meson() {
1102   local python_dir=$(dirname "$python")
1103   # PEP405: pyvenv.cfg is either adjacent to the Python executable
1104   # or one directory above
1105   if test -f $python_dir/pyvenv.cfg || test -f $python_dir/../pyvenv.cfg; then
1106     # Ensure that Meson and Python come from the same virtual environment
1107     test -x "$python_dir/meson" &&
1108       test "$(command -v meson)" -ef "$python_dir/meson"
1109   else
1110     has meson
1111   fi
1112 }
1113
1114 if test -z "$meson"; then
1115     if test "$explicit_python" = no && has_meson && version_ge "$(meson --version)" 0.61.5; then
1116         meson=meson
1117     elif test "$git_submodules_action" != 'ignore' ; then
1118         meson=git
1119     elif test -e "${source_path}/meson/meson.py" ; then
1120         meson=internal
1121     else
1122         if test "$explicit_python" = yes; then
1123             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1124         else
1125             error_exit "Meson not found.  Use --meson=/path/to/meson"
1126         fi
1127     fi
1128 else
1129     # Meson uses its own Python interpreter to invoke other Python scripts,
1130     # but the user wants to use the one they specified with --python.
1131     #
1132     # We do not want to override the distro Python interpreter (and sometimes
1133     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1134     # just require --meson=git|internal together with --python.
1135     if test "$explicit_python" = yes; then
1136         case "$meson" in
1137             git | internal) ;;
1138             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1139         esac
1140     fi
1141 fi
1142
1143 if test "$meson" = git; then
1144     git_submodules="${git_submodules} meson"
1145 fi
1146
1147 case "$meson" in
1148     git | internal)
1149         meson="$python ${source_path}/meson/meson.py"
1150         ;;
1151     *) meson=$(command -v "$meson") ;;
1152 esac
1153
1154 # Probe for ninja
1155
1156 if test -z "$ninja"; then
1157     for c in ninja ninja-build samu; do
1158         if has $c; then
1159             ninja=$(command -v "$c")
1160             break
1161         fi
1162     done
1163     if test -z "$ninja"; then
1164       error_exit "Cannot find Ninja"
1165     fi
1166 fi
1167
1168 # Check that the C compiler works. Doing this here before testing
1169 # the host CPU ensures that we had a valid CC to autodetect the
1170 # $cpu var (and we should bail right here if that's not the case).
1171 # It also allows the help message to be printed without a CC.
1172 write_c_skeleton;
1173 if compile_object ; then
1174   : C compiler works ok
1175 else
1176     error_exit "\"$cc\" either does not exist or does not work"
1177 fi
1178 if ! compile_prog ; then
1179     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1180 fi
1181
1182 # Consult white-list to determine whether to enable werror
1183 # by default.  Only enable by default for git builds
1184 if test -z "$werror" ; then
1185     if test "$git_submodules_action" != "ignore" && \
1186         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1187         werror="yes"
1188     else
1189         werror="no"
1190     fi
1191 fi
1192
1193 if test "$targetos" = "bogus"; then
1194     # Now that we know that we're not printing the help and that
1195     # the compiler works (so the results of the check_defines we used
1196     # to identify the OS are reliable), if we didn't recognize the
1197     # host OS we should stop now.
1198     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1199 fi
1200
1201 # Check whether the compiler matches our minimum requirements:
1202 cat > $TMPC << EOF
1203 #if defined(__clang_major__) && defined(__clang_minor__)
1204 # ifdef __apple_build_version__
1205 #  if __clang_major__ < 12 || (__clang_major__ == 12 && __clang_minor__ < 0)
1206 #   error You need at least XCode Clang v12.0 to compile QEMU
1207 #  endif
1208 # else
1209 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1210 #   error You need at least Clang v10.0 to compile QEMU
1211 #  endif
1212 # endif
1213 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1214 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1215 #  error You need at least GCC v7.4.0 to compile QEMU
1216 # endif
1217 #else
1218 # error You either need GCC or Clang to compiler QEMU
1219 #endif
1220 int main (void) { return 0; }
1221 EOF
1222 if ! compile_prog "" "" ; then
1223     error_exit "You need at least GCC v7.4 or Clang v10.0 (or XCode Clang v12.0)"
1224 fi
1225
1226 # Accumulate -Wfoo and -Wno-bar separately.
1227 # We will list all of the enable flags first, and the disable flags second.
1228 # Note that we do not add -Werror, because that would enable it for all
1229 # configure tests. If a configure test failed due to -Werror this would
1230 # just silently disable some features, so it's too error prone.
1231
1232 warn_flags=
1233 add_to warn_flags -Wundef
1234 add_to warn_flags -Wwrite-strings
1235 add_to warn_flags -Wmissing-prototypes
1236 add_to warn_flags -Wstrict-prototypes
1237 add_to warn_flags -Wredundant-decls
1238 add_to warn_flags -Wold-style-declaration
1239 add_to warn_flags -Wold-style-definition
1240 add_to warn_flags -Wtype-limits
1241 add_to warn_flags -Wformat-security
1242 add_to warn_flags -Wformat-y2k
1243 add_to warn_flags -Winit-self
1244 add_to warn_flags -Wignored-qualifiers
1245 add_to warn_flags -Wempty-body
1246 add_to warn_flags -Wnested-externs
1247 add_to warn_flags -Wendif-labels
1248 add_to warn_flags -Wexpansion-to-defined
1249 add_to warn_flags -Wimplicit-fallthrough=2
1250 add_to warn_flags -Wmissing-format-attribute
1251
1252 if test "$targetos" != "darwin"; then
1253     add_to warn_flags -Wthread-safety
1254 fi
1255
1256 nowarn_flags=
1257 add_to nowarn_flags -Wno-initializer-overrides
1258 add_to nowarn_flags -Wno-missing-include-dirs
1259 add_to nowarn_flags -Wno-shift-negative-value
1260 add_to nowarn_flags -Wno-string-plus-int
1261 add_to nowarn_flags -Wno-typedef-redefinition
1262 add_to nowarn_flags -Wno-tautological-type-limit-compare
1263 add_to nowarn_flags -Wno-psabi
1264 add_to nowarn_flags -Wno-gnu-variable-sized-type-not-at-end
1265
1266 gcc_flags="$warn_flags $nowarn_flags"
1267
1268 cc_has_warning_flag() {
1269     write_c_skeleton;
1270
1271     # Use the positive sense of the flag when testing for -Wno-wombat
1272     # support (gcc will happily accept the -Wno- form of unknown
1273     # warning options).
1274     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1275     compile_prog "-Werror $optflag" ""
1276 }
1277
1278 objcc_has_warning_flag() {
1279     cat > $TMPM <<EOF
1280 int main(void) { return 0; }
1281 EOF
1282
1283     # Use the positive sense of the flag when testing for -Wno-wombat
1284     # support (gcc will happily accept the -Wno- form of unknown
1285     # warning options).
1286     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1287     do_objc -Werror $optflag \
1288       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1289       -o $TMPE $TMPM $QEMU_LDFLAGS
1290 }
1291
1292 for flag in $gcc_flags; do
1293     if cc_has_warning_flag $flag ; then
1294         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1295     fi
1296     if objcc_has_warning_flag $flag ; then
1297         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1298     fi
1299 done
1300
1301 if test "$stack_protector" != "no"; then
1302   cat > $TMPC << EOF
1303 int main(int argc, char *argv[])
1304 {
1305     char arr[64], *p = arr, *c = argv[argc - 1];
1306     while (*c) {
1307         *p++ = *c++;
1308     }
1309     return 0;
1310 }
1311 EOF
1312   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1313   sp_on=0
1314   for flag in $gcc_flags; do
1315     # We need to check both a compile and a link, since some compiler
1316     # setups fail only on a .c->.o compile and some only at link time
1317     if compile_object "-Werror $flag" &&
1318        compile_prog "-Werror $flag" ""; then
1319       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1320       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1321       sp_on=1
1322       break
1323     fi
1324   done
1325   if test "$stack_protector" = yes; then
1326     if test $sp_on = 0; then
1327       error_exit "Stack protector not supported"
1328     fi
1329   fi
1330 fi
1331
1332 # Our module code doesn't support Windows
1333 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1334   error_exit "Modules are not available for Windows"
1335 fi
1336
1337 # Static linking is not possible with plugins, modules or PIE
1338 if test "$static" = "yes" ; then
1339   if test "$modules" = "yes" ; then
1340     error_exit "static and modules are mutually incompatible"
1341   fi
1342   if test "$plugins" = "yes"; then
1343     error_exit "static and plugins are mutually incompatible"
1344   else
1345     plugins="no"
1346   fi
1347 fi
1348 test "$plugins" = "" && plugins=yes
1349
1350 cat > $TMPC << EOF
1351
1352 #ifdef __linux__
1353 #  define THREAD __thread
1354 #else
1355 #  define THREAD
1356 #endif
1357 static THREAD int tls_var;
1358 int main(void) { return tls_var; }
1359 EOF
1360
1361 # Meson currently only handles pie as a boolean for now so if we have
1362 # explicitly disabled PIE we need to extend our cflags because it wont.
1363 if test "$static" = "yes"; then
1364   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1365     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1366     pie="yes"
1367   elif test "$pie" = "yes"; then
1368     error_exit "-static-pie not available due to missing toolchain support"
1369   else
1370     pie="no"
1371     QEMU_CFLAGS="-fno-pie $QEMU_CFLAGS"
1372   fi
1373 elif test "$pie" = "no"; then
1374   if compile_prog "-Werror -fno-pie" "-no-pie"; then
1375     CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS"
1376     CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS"
1377     QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1378   fi
1379 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1380   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1381   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1382   pie="yes"
1383 elif test "$pie" = "yes"; then
1384   error_exit "PIE not available due to missing toolchain support"
1385 else
1386   echo "Disabling PIE due to missing toolchain support"
1387   pie="no"
1388 fi
1389
1390 ##########################################
1391 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1392 # use i686 as default anyway, but for those that don't, an explicit
1393 # specification is necessary
1394
1395 if test "$cpu" = "i386"; then
1396   cat > $TMPC << EOF
1397 static int sfaa(int *ptr)
1398 {
1399   return __sync_fetch_and_and(ptr, 0);
1400 }
1401
1402 int main(void)
1403 {
1404   int val = 42;
1405   val = __sync_val_compare_and_swap(&val, 0, 1);
1406   sfaa(&val);
1407   return val;
1408 }
1409 EOF
1410   if ! compile_prog "" "" ; then
1411     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1412   fi
1413 fi
1414
1415 if test -z "${target_list+xxx}" ; then
1416     default_targets=yes
1417     for target in $default_target_list; do
1418         target_list="$target_list $target"
1419     done
1420     target_list="${target_list# }"
1421 else
1422     default_targets=no
1423     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1424     for target in $target_list; do
1425         # Check that we recognised the target name; this allows a more
1426         # friendly error message than if we let it fall through.
1427         case " $default_target_list " in
1428             *" $target "*)
1429                 ;;
1430             *)
1431                 error_exit "Unknown target name '$target'"
1432                 ;;
1433         esac
1434     done
1435 fi
1436
1437 # see if system emulation was really requested
1438 case " $target_list " in
1439   *"-softmmu "*) softmmu=yes
1440   ;;
1441   *) softmmu=no
1442   ;;
1443 esac
1444
1445 if test "$tcg" = "auto"; then
1446   if test -z "$target_list"; then
1447     tcg="disabled"
1448   else
1449     tcg="enabled"
1450   fi
1451 fi
1452
1453 if test "$tcg" = "enabled"; then
1454     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1455     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1456 fi
1457
1458 ##########################################
1459 # big/little endian test
1460 cat > $TMPC << EOF
1461 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1462 # error LITTLE
1463 #endif
1464 int main(void) { return 0; }
1465 EOF
1466
1467 if ! compile_prog ; then
1468   bigendian="no"
1469 else
1470   cat > $TMPC << EOF
1471 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1472 # error BIG
1473 #endif
1474 int main(void) { return 0; }
1475 EOF
1476
1477   if ! compile_prog ; then
1478     bigendian="yes"
1479   else
1480     echo big/little test failed
1481     exit 1
1482   fi
1483 fi
1484
1485 ##########################################
1486 # pkg-config probe
1487
1488 if ! has "$pkg_config_exe"; then
1489   error_exit "pkg-config binary '$pkg_config_exe' not found"
1490 fi
1491
1492 ##########################################
1493 # glib support probe
1494
1495 # When bumping glib_req_ver, please check also whether we should increase
1496 # the _WIN32_WINNT setting in osdep.h according to the value from glib
1497 glib_req_ver=2.56
1498 glib_modules=gthread-2.0
1499 if test "$modules" = yes; then
1500     glib_modules="$glib_modules gmodule-export-2.0"
1501 elif test "$plugins" = "yes"; then
1502     glib_modules="$glib_modules gmodule-no-export-2.0"
1503 fi
1504
1505 for i in $glib_modules; do
1506     if $pkg_config --atleast-version=$glib_req_ver $i; then
1507         glib_cflags=$($pkg_config --cflags $i)
1508         glib_libs=$($pkg_config --libs $i)
1509     else
1510         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
1511     fi
1512 done
1513
1514 # Check whether glib has gslice, which we have to avoid for correctness.
1515 # TODO: remove this check and the corresponding workaround (qtree) when
1516 # the minimum supported glib is >= $glib_dropped_gslice_version.
1517 glib_dropped_gslice_version=2.75.3
1518 for i in $glib_modules; do
1519     if ! $pkg_config --atleast-version=$glib_dropped_gslice_version $i; then
1520         glib_has_gslice="yes"
1521         break
1522     fi
1523 done
1524
1525 glib_bindir="$($pkg_config --variable=bindir glib-2.0)"
1526 if test -z "$glib_bindir" ; then
1527         glib_bindir="$($pkg_config --variable=prefix glib-2.0)"/bin
1528 fi
1529
1530 # This workaround is required due to a bug in pkg-config file for glib as it
1531 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
1532
1533 if test "$static" = yes && test "$mingw32" = yes; then
1534     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
1535 fi
1536
1537 # Sanity check that the current size_t matches the
1538 # size that glib thinks it should be. This catches
1539 # problems on multi-arch where people try to build
1540 # 32-bit QEMU while pointing at 64-bit glib headers
1541 cat > $TMPC <<EOF
1542 #include <glib.h>
1543 #include <unistd.h>
1544
1545 #define QEMU_BUILD_BUG_ON(x) \
1546   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
1547
1548 int main(void) {
1549    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
1550    return 0;
1551 }
1552 EOF
1553
1554 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
1555     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
1556                "You probably need to set PKG_CONFIG_LIBDIR"\
1557                "to point to the right pkg-config files for your"\
1558                "build target"
1559 fi
1560
1561 # Silence clang warnings triggered by glib < 2.57.2
1562 cat > $TMPC << EOF
1563 #include <glib.h>
1564 typedef struct Foo {
1565     int i;
1566 } Foo;
1567 static void foo_free(Foo *f)
1568 {
1569     g_free(f);
1570 }
1571 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
1572 int main(void) { return 0; }
1573 EOF
1574 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
1575     if cc_has_warning_flag "-Wno-unused-function"; then
1576         glib_cflags="$glib_cflags -Wno-unused-function"
1577         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
1578     fi
1579 fi
1580
1581 ##########################################
1582 # fdt probe
1583
1584 case "$fdt" in
1585   auto | enabled | internal)
1586     # Simpler to always update submodule, even if not needed.
1587     git_submodules="${git_submodules} dtc"
1588     ;;
1589 esac
1590
1591 ##########################################
1592 # check and set a backend for coroutine
1593
1594 # We prefer ucontext, but it's not always possible. The fallback
1595 # is sigcontext. On Windows the only valid backend is the Windows
1596 # specific one.
1597
1598 ucontext_works=no
1599 if test "$darwin" != "yes"; then
1600   cat > $TMPC << EOF
1601 #include <ucontext.h>
1602 #ifdef __stub_makecontext
1603 #error Ignoring glibc stub makecontext which will always fail
1604 #endif
1605 int main(void) { makecontext(0, 0, 0); return 0; }
1606 EOF
1607   if compile_prog "" "" ; then
1608     ucontext_works=yes
1609   fi
1610 fi
1611
1612 if test "$coroutine" = ""; then
1613   if test "$mingw32" = "yes"; then
1614     coroutine=win32
1615   elif test "$ucontext_works" = "yes"; then
1616     coroutine=ucontext
1617   else
1618     coroutine=sigaltstack
1619   fi
1620 else
1621   case $coroutine in
1622   windows)
1623     if test "$mingw32" != "yes"; then
1624       error_exit "'windows' coroutine backend only valid for Windows"
1625     fi
1626     # Unfortunately the user visible backend name doesn't match the
1627     # coroutine-*.c filename for this case, so we have to adjust it here.
1628     coroutine=win32
1629     ;;
1630   ucontext)
1631     if test "$ucontext_works" != "yes"; then
1632       error_exit "'ucontext' backend requested but makecontext not available"
1633     fi
1634     ;;
1635   sigaltstack)
1636     if test "$mingw32" = "yes"; then
1637       error_exit "only the 'windows' coroutine backend is valid for Windows"
1638     fi
1639     ;;
1640   *)
1641     error_exit "unknown coroutine backend $coroutine"
1642     ;;
1643   esac
1644 fi
1645
1646 ##################################################
1647 # SafeStack
1648
1649
1650 if test "$safe_stack" = "yes"; then
1651 cat > $TMPC << EOF
1652 int main(void)
1653 {
1654 #if ! __has_feature(safe_stack)
1655 #error SafeStack Disabled
1656 #endif
1657     return 0;
1658 }
1659 EOF
1660   flag="-fsanitize=safe-stack"
1661   # Check that safe-stack is supported and enabled.
1662   if compile_prog "-Werror $flag" "$flag"; then
1663     # Flag needed both at compilation and at linking
1664     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1665     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1666   else
1667     error_exit "SafeStack not supported by your compiler"
1668   fi
1669   if test "$coroutine" != "ucontext"; then
1670     error_exit "SafeStack is only supported by the coroutine backend ucontext"
1671   fi
1672 else
1673 cat > $TMPC << EOF
1674 int main(void)
1675 {
1676 #if defined(__has_feature)
1677 #if __has_feature(safe_stack)
1678 #error SafeStack Enabled
1679 #endif
1680 #endif
1681     return 0;
1682 }
1683 EOF
1684 if test "$safe_stack" = "no"; then
1685   # Make sure that safe-stack is disabled
1686   if ! compile_prog "-Werror" ""; then
1687     # SafeStack was already enabled, try to explicitly remove the feature
1688     flag="-fno-sanitize=safe-stack"
1689     if ! compile_prog "-Werror $flag" "$flag"; then
1690       error_exit "Configure cannot disable SafeStack"
1691     fi
1692     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1693     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1694   fi
1695 else # "$safe_stack" = ""
1696   # Set safe_stack to yes or no based on pre-existing flags
1697   if compile_prog "-Werror" ""; then
1698     safe_stack="no"
1699   else
1700     safe_stack="yes"
1701     if test "$coroutine" != "ucontext"; then
1702       error_exit "SafeStack is only supported by the coroutine backend ucontext"
1703     fi
1704   fi
1705 fi
1706 fi
1707
1708 ########################################
1709 # check if ccache is interfering with
1710 # semantic analysis of macros
1711
1712 unset CCACHE_CPP2
1713 ccache_cpp2=no
1714 cat > $TMPC << EOF
1715 static const int Z = 1;
1716 #define fn() ({ Z; })
1717 #define TAUT(X) ((X) == Z)
1718 #define PAREN(X, Y) (X == Y)
1719 #define ID(X) (X)
1720 int main(void)
1721 {
1722     int x = 0, y = 0;
1723     x = ID(x);
1724     x = fn();
1725     fn();
1726     if (PAREN(x, y)) return 0;
1727     if (TAUT(Z)) return 0;
1728     return 0;
1729 }
1730 EOF
1731
1732 if ! compile_object "-Werror"; then
1733     ccache_cpp2=yes
1734 fi
1735
1736 #################################################
1737 # clang does not support glibc + FORTIFY_SOURCE.
1738
1739 if test "$fortify_source" != "no"; then
1740   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
1741     fortify_source="no";
1742   elif test -n "$cxx" && has $cxx &&
1743        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
1744     fortify_source="no";
1745   else
1746     fortify_source="yes"
1747   fi
1748 fi
1749
1750 ##########################################
1751 # checks for sanitizers
1752
1753 have_asan=no
1754 have_ubsan=no
1755 have_asan_iface_h=no
1756 have_asan_iface_fiber=no
1757
1758 if test "$sanitizers" = "yes" ; then
1759   write_c_skeleton
1760   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
1761       have_asan=yes
1762   fi
1763
1764   # we could use a simple skeleton for flags checks, but this also
1765   # detect the static linking issue of ubsan, see also:
1766   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
1767   cat > $TMPC << EOF
1768 #include <stdlib.h>
1769 int main(void) {
1770     void *tmp = malloc(10);
1771     if (tmp != NULL) {
1772         return *(int *)(tmp + 2);
1773     }
1774     return 1;
1775 }
1776 EOF
1777   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
1778       have_ubsan=yes
1779   fi
1780
1781   if check_include "sanitizer/asan_interface.h" ; then
1782       have_asan_iface_h=yes
1783   fi
1784
1785   cat > $TMPC << EOF
1786 #include <sanitizer/asan_interface.h>
1787 int main(void) {
1788   __sanitizer_start_switch_fiber(0, 0, 0);
1789   return 0;
1790 }
1791 EOF
1792   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
1793       have_asan_iface_fiber=yes
1794   fi
1795 fi
1796
1797 # Thread sanitizer is, for now, much noisier than the other sanitizers;
1798 # keep it separate until that is not the case.
1799 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
1800   error_exit "TSAN is not supported with other sanitiziers."
1801 fi
1802 have_tsan=no
1803 have_tsan_iface_fiber=no
1804 if test "$tsan" = "yes" ; then
1805   write_c_skeleton
1806   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1807       have_tsan=yes
1808   fi
1809   cat > $TMPC << EOF
1810 #include <sanitizer/tsan_interface.h>
1811 int main(void) {
1812   __tsan_create_fiber(0);
1813   return 0;
1814 }
1815 EOF
1816   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1817       have_tsan_iface_fiber=yes
1818   fi
1819 fi
1820
1821 ##########################################
1822 # functions to probe cross compilers
1823
1824 container="no"
1825 runc=""
1826 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1827     case $($python "$source_path"/tests/docker/docker.py probe) in
1828         *docker) container=docker ;;
1829         podman) container=podman ;;
1830         no) container=no ;;
1831     esac
1832     if test "$container" != "no"; then
1833         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1834         runc=$($python "$source_path"/tests/docker/docker.py probe)
1835     fi
1836 fi
1837
1838 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1839 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1840 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1841 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1842 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1843 : ${cross_prefix_armeb="$cross_prefix_arm"}
1844 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1845 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1846 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1847 : ${cross_prefix_i386="i686-linux-gnu-"}
1848 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1849 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1850 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1851 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1852 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1853 : ${cross_prefix_mips="mips-linux-gnu-"}
1854 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1855 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1856 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1857 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1858 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1859 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1860 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1861 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1862 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1863 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1864
1865 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1866 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1867 : ${cross_cc_armeb="$cross_cc_arm"}
1868 : ${cross_cc_cflags_armeb="-mbig-endian"}
1869 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1870 : ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
1871 : ${cross_cc_cflags_i386="-m32"}
1872 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1873 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1874 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1875 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1876 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1877 : ${cross_cc_sparc="$cross_cc_sparc64"}
1878 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1879 : ${cross_cc_cflags_x86_64="-m64"}
1880
1881 compute_target_variable() {
1882   eval "$2="
1883   if eval test -n "\"\${cross_prefix_$1}\""; then
1884     if eval has "\"\${cross_prefix_$1}\$3\""; then
1885       eval "$2=\"\${cross_prefix_$1}\$3\""
1886     fi
1887   fi
1888 }
1889
1890 have_target() {
1891   for i; do
1892     case " $target_list " in
1893       *" $i "*) return 0;;
1894       *) ;;
1895     esac
1896   done
1897   return 1
1898 }
1899
1900 # probe_target_compiler TARGET
1901 #
1902 # Look for a compiler for the given target, either native or cross.
1903 # Set variables target_* if a compiler is found, and container_cross_*
1904 # if a Docker-based cross-compiler image is known for the target.
1905 # Set got_cross_cc to yes/no depending on whether a non-container-based
1906 # compiler was found.
1907 #
1908 # If TARGET is a user-mode emulation target, also set build_static to
1909 # "y" if static linking is possible.
1910 #
1911 probe_target_compiler() {
1912   # reset all output variables
1913   got_cross_cc=no
1914   container_image=
1915   container_hosts=
1916   container_cross_cc=
1917   container_cross_ar=
1918   container_cross_as=
1919   container_cross_ld=
1920   container_cross_nm=
1921   container_cross_objcopy=
1922   container_cross_ranlib=
1923   container_cross_strip=
1924
1925   # We shall skip configuring the target compiler if the user didn't
1926   # bother enabling an appropriate guest. This avoids building
1927   # extraneous firmware images and tests.
1928   if test "${target_list#*$1}" = "$1"; then
1929       return 1
1930   fi
1931
1932   target_arch=${1%%-*}
1933   case $target_arch in
1934     aarch64) container_hosts="x86_64 aarch64" ;;
1935     alpha) container_hosts=x86_64 ;;
1936     arm) container_hosts="x86_64 aarch64" ;;
1937     cris) container_hosts=x86_64 ;;
1938     hexagon) container_hosts=x86_64 ;;
1939     hppa) container_hosts=x86_64 ;;
1940     i386) container_hosts=x86_64 ;;
1941     loongarch64) container_hosts=x86_64 ;;
1942     m68k) container_hosts=x86_64 ;;
1943     microblaze) container_hosts=x86_64 ;;
1944     mips64el) container_hosts=x86_64 ;;
1945     mips64) container_hosts=x86_64 ;;
1946     mipsel) container_hosts=x86_64 ;;
1947     mips) container_hosts=x86_64 ;;
1948     nios2) container_hosts=x86_64 ;;
1949     ppc) container_hosts=x86_64 ;;
1950     ppc64|ppc64le) container_hosts=x86_64 ;;
1951     riscv64) container_hosts=x86_64 ;;
1952     s390x) container_hosts=x86_64 ;;
1953     sh4) container_hosts=x86_64 ;;
1954     sparc64) container_hosts=x86_64 ;;
1955     tricore) container_hosts=x86_64 ;;
1956     x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1957     xtensa*) container_hosts=x86_64 ;;
1958   esac
1959
1960   for host in $container_hosts; do
1961     test "$container" != no || continue
1962     test "$host" = "$cpu" || continue
1963     case $target_arch in
1964       aarch64)
1965         # We don't have any bigendian build tools so we only use this for AArch64
1966         container_image=debian-arm64-cross
1967         container_cross_prefix=aarch64-linux-gnu-
1968         container_cross_cc=${container_cross_prefix}gcc-10
1969         ;;
1970       alpha)
1971         container_image=debian-alpha-cross
1972         container_cross_prefix=alpha-linux-gnu-
1973         ;;
1974       arm)
1975         # We don't have any bigendian build tools so we only use this for ARM
1976         container_image=debian-armhf-cross
1977         container_cross_prefix=arm-linux-gnueabihf-
1978         ;;
1979       cris)
1980         container_image=fedora-cris-cross
1981         container_cross_prefix=cris-linux-gnu-
1982         ;;
1983       hexagon)
1984         container_image=debian-hexagon-cross
1985         container_cross_prefix=hexagon-unknown-linux-musl-
1986         container_cross_cc=${container_cross_prefix}clang
1987         ;;
1988       hppa)
1989         container_image=debian-hppa-cross
1990         container_cross_prefix=hppa-linux-gnu-
1991         ;;
1992       i386)
1993         container_image=fedora-i386-cross
1994         container_cross_prefix=
1995         ;;
1996       loongarch64)
1997         container_image=debian-loongarch-cross
1998         container_cross_prefix=loongarch64-unknown-linux-gnu-
1999         ;;
2000       m68k)
2001         container_image=debian-m68k-cross
2002         container_cross_prefix=m68k-linux-gnu-
2003         ;;
2004       microblaze)
2005         container_image=debian-microblaze-cross
2006         container_cross_prefix=microblaze-linux-musl-
2007         ;;
2008       mips64el)
2009         container_image=debian-mips64el-cross
2010         container_cross_prefix=mips64el-linux-gnuabi64-
2011         ;;
2012       mips64)
2013         container_image=debian-mips64-cross
2014         container_cross_prefix=mips64-linux-gnuabi64-
2015         ;;
2016       mipsel)
2017         container_image=debian-mipsel-cross
2018         container_cross_prefix=mipsel-linux-gnu-
2019         ;;
2020       mips)
2021         container_image=debian-mips-cross
2022         container_cross_prefix=mips-linux-gnu-
2023         ;;
2024       nios2)
2025         container_image=debian-nios2-cross
2026         container_cross_prefix=nios2-linux-gnu-
2027         ;;
2028       ppc)
2029         container_image=debian-powerpc-test-cross
2030         container_cross_prefix=powerpc-linux-gnu-
2031         container_cross_cc=${container_cross_prefix}gcc-10
2032         ;;
2033       ppc64|ppc64le)
2034         container_image=debian-powerpc-test-cross
2035         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
2036         container_cross_cc=${container_cross_prefix}gcc-10
2037         ;;
2038       riscv64)
2039         container_image=debian-riscv64-test-cross
2040         container_cross_prefix=riscv64-linux-gnu-
2041         ;;
2042       s390x)
2043         container_image=debian-s390x-cross
2044         container_cross_prefix=s390x-linux-gnu-
2045         ;;
2046       sh4)
2047         container_image=debian-sh4-cross
2048         container_cross_prefix=sh4-linux-gnu-
2049         ;;
2050       sparc64)
2051         container_image=debian-sparc64-cross
2052         container_cross_prefix=sparc64-linux-gnu-
2053         ;;
2054       tricore)
2055         container_image=debian-tricore-cross
2056         container_cross_prefix=tricore-
2057         container_cross_as=tricore-as
2058         container_cross_ld=tricore-ld
2059         break
2060         ;;
2061       x86_64)
2062         container_image=debian-amd64-cross
2063         container_cross_prefix=x86_64-linux-gnu-
2064         ;;
2065       xtensa*)
2066         container_hosts=x86_64
2067         container_image=debian-xtensa-cross
2068
2069         # default to the dc232b cpu
2070         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
2071         ;;
2072     esac
2073     : ${container_cross_cc:=${container_cross_prefix}gcc}
2074     : ${container_cross_ar:=${container_cross_prefix}ar}
2075     : ${container_cross_as:=${container_cross_prefix}as}
2076     : ${container_cross_ld:=${container_cross_prefix}ld}
2077     : ${container_cross_nm:=${container_cross_prefix}nm}
2078     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
2079     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
2080     : ${container_cross_strip:=${container_cross_prefix}strip}
2081   done
2082
2083   try=cross
2084   case "$target_arch:$cpu" in
2085     aarch64_be:aarch64 | \
2086     armeb:arm | \
2087     i386:x86_64 | \
2088     mips*:mips64 | \
2089     ppc*:ppc64 | \
2090     sparc:sparc64 | \
2091     "$cpu:$cpu")
2092       try='native cross' ;;
2093   esac
2094   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
2095   for thistry in $try; do
2096     case $thistry in
2097     native)
2098       target_cc=$cc
2099       target_ccas=$ccas
2100       target_ar=$ar
2101       target_as=$as
2102       target_ld=$ld
2103       target_nm=$nm
2104       target_objcopy=$objcopy
2105       target_ranlib=$ranlib
2106       target_strip=$strip
2107       ;;
2108     cross)
2109       target_cc=
2110       if eval test -n "\"\${cross_cc_$target_arch}\""; then
2111         if eval has "\"\${cross_cc_$target_arch}\""; then
2112           eval "target_cc=\"\${cross_cc_$target_arch}\""
2113         fi
2114       else
2115         compute_target_variable $target_arch target_cc gcc
2116       fi
2117       target_ccas=$target_cc
2118       compute_target_variable $target_arch target_ar ar
2119       compute_target_variable $target_arch target_as as
2120       compute_target_variable $target_arch target_ld ld
2121       compute_target_variable $target_arch target_nm nm
2122       compute_target_variable $target_arch target_objcopy objcopy
2123       compute_target_variable $target_arch target_ranlib ranlib
2124       compute_target_variable $target_arch target_strip strip
2125       ;;
2126     esac
2127
2128     if test -n "$target_cc"; then
2129       case $target_arch in
2130         i386|x86_64)
2131           if $target_cc --version | grep -qi "clang"; then
2132             continue
2133           fi
2134           ;;
2135       esac
2136     elif test -n "$target_as" && test -n "$target_ld"; then
2137       # Special handling for assembler only targets
2138       case $target in
2139         tricore-softmmu)
2140           build_static=
2141           got_cross_cc=yes
2142           break
2143           ;;
2144         *)
2145           continue
2146           ;;
2147       esac
2148     else
2149       continue
2150     fi
2151
2152     write_c_skeleton
2153     case $1 in
2154       *-softmmu)
2155         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
2156           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
2157           got_cross_cc=yes
2158           break
2159         fi
2160         ;;
2161       *)
2162         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
2163           build_static=y
2164           got_cross_cc=yes
2165           break
2166         fi
2167         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
2168           build_static=
2169           got_cross_cc=yes
2170           break
2171         fi
2172         ;;
2173     esac
2174   done
2175   if test $got_cross_cc != yes; then
2176     build_static=
2177     target_cc=
2178     target_ccas=
2179     target_ar=
2180     target_as=
2181     target_ld=
2182     target_nm=
2183     target_objcopy=
2184     target_ranlib=
2185     target_strip=
2186   fi
2187   test -n "$target_cc"
2188 }
2189
2190 write_target_makefile() {
2191   echo "EXTRA_CFLAGS=$target_cflags"
2192   if test -z "$target_cc" && test -z "$target_as"; then
2193     test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
2194     echo "$1: docker-image-$container_image" >> Makefile.prereqs
2195     if test -n "$container_cross_cc"; then
2196       echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2197       echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2198     fi
2199     echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
2200     echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
2201     echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
2202     echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
2203     echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
2204     echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
2205     echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
2206   else
2207     if test -n "$target_cc"; then
2208       echo "CC=$target_cc"
2209       echo "CCAS=$target_ccas"
2210     fi
2211     if test -n "$target_ar"; then
2212       echo "AR=$target_ar"
2213     fi
2214     if test -n "$target_as"; then
2215       echo "AS=$target_as"
2216     fi
2217     if test -n "$target_ld"; then
2218       echo "LD=$target_ld"
2219     fi
2220     if test -n "$target_nm"; then
2221       echo "NM=$target_nm"
2222     fi
2223     if test -n "$target_objcopy"; then
2224       echo "OBJCOPY=$target_objcopy"
2225     fi
2226     if test -n "$target_ranlib"; then
2227       echo "RANLIB=$target_ranlib"
2228     fi
2229     if test -n "$target_strip"; then
2230       echo "STRIP=$target_strip"
2231     fi
2232   fi
2233 }
2234
2235 ##########################################
2236 # check for vfio_user_server
2237
2238 case "$vfio_user_server" in
2239   enabled )
2240     if test "$git_submodules_action" != "ignore"; then
2241       git_submodules="${git_submodules} subprojects/libvfio-user"
2242     fi
2243     ;;
2244 esac
2245
2246 ##########################################
2247 # End of CC checks
2248 # After here, no more $cc or $ld runs
2249
2250 write_c_skeleton
2251
2252 if test "$fortify_source" = "yes" ; then
2253   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2254 fi
2255
2256 if test "$have_asan" = "yes"; then
2257   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2258   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2259   if test "$have_asan_iface_h" = "no" ; then
2260       echo "ASAN build enabled, but ASAN header missing." \
2261            "Without code annotation, the report may be inferior."
2262   elif test "$have_asan_iface_fiber" = "no" ; then
2263       echo "ASAN build enabled, but ASAN header is too old." \
2264            "Without code annotation, the report may be inferior."
2265   fi
2266 fi
2267 if test "$have_tsan" = "yes" ; then
2268   if test "$have_tsan_iface_fiber" = "yes" ; then
2269     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2270     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2271   else
2272     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2273   fi
2274 elif test "$tsan" = "yes" ; then
2275   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2276 fi
2277 if test "$have_ubsan" = "yes"; then
2278   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2279   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2280 fi
2281
2282 #######################################
2283 # cross-compiled firmware targets
2284
2285 # Set up build tree symlinks that point back into the source tree
2286 # (these can be both files and directories).
2287 # Caution: avoid adding files or directories here using wildcards. This
2288 # will result in problems later if a new file matching the wildcard is
2289 # added to the source tree -- nothing will cause configure to be rerun
2290 # so the build tree will be missing the link back to the new file, and
2291 # tests might fail. Prefer to keep the relevant files in their own
2292 # directory and symlink the directory instead.
2293 LINKS="Makefile"
2294 LINKS="$LINKS docs/config"
2295 LINKS="$LINKS pc-bios/optionrom/Makefile"
2296 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
2297 LINKS="$LINKS pc-bios/vof/Makefile"
2298 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
2299 LINKS="$LINKS tests/avocado tests/data"
2300 LINKS="$LINKS tests/qemu-iotests/check"
2301 LINKS="$LINKS python"
2302 LINKS="$LINKS contrib/plugins/Makefile "
2303 for f in $LINKS ; do
2304     if [ -e "$source_path/$f" ]; then
2305         mkdir -p "$(dirname ./"$f")"
2306         symlink "$source_path/$f" "$f"
2307     fi
2308 done
2309
2310 echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
2311
2312 # Mac OS X ships with a broken assembler
2313 roms=
2314 if have_target i386-softmmu x86_64-softmmu && \
2315         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2316         test "$targetos" != "haiku" && \
2317         probe_target_compiler i386-softmmu; then
2318     roms="pc-bios/optionrom"
2319     config_mak=pc-bios/optionrom/config.mak
2320     echo "# Automatically generated by configure - do not modify" > $config_mak
2321     echo "TOPSRC_DIR=$source_path" >> $config_mak
2322     write_target_makefile >> $config_mak
2323 fi
2324
2325 if have_target ppc-softmmu ppc64-softmmu && \
2326         probe_target_compiler ppc-softmmu; then
2327     roms="$roms pc-bios/vof"
2328     config_mak=pc-bios/vof/config.mak
2329     echo "# Automatically generated by configure - do not modify" > $config_mak
2330     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
2331     write_target_makefile >> $config_mak
2332 fi
2333
2334 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
2335 # (which is the lowest architecture level that Clang supports)
2336 if have_target s390x-softmmu && probe_target_compiler s390x-softmmu; then
2337   write_c_skeleton
2338   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
2339   has_z900=$?
2340   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
2341     if [ $has_z900 != 0 ]; then
2342       echo "WARNING: Your compiler does not support the z900!"
2343       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2344     fi
2345     roms="$roms pc-bios/s390-ccw"
2346     config_mak=pc-bios/s390-ccw/config-host.mak
2347     echo "# Automatically generated by configure - do not modify" > $config_mak
2348     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
2349     write_target_makefile >> $config_mak
2350     # SLOF is required for building the s390-ccw firmware on s390x,
2351     # since it is using the libnet code from SLOF for network booting.
2352     git_submodules="${git_submodules} roms/SLOF"
2353   fi
2354 fi
2355
2356 #######################################
2357 # generate config-host.mak
2358
2359 if ! (GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2360     exit 1
2361 fi
2362
2363 config_host_mak="config-host.mak"
2364
2365 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2366 echo >> $config_host_mak
2367
2368 echo all: >> $config_host_mak
2369 echo "GIT=$git" >> $config_host_mak
2370 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2371 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2372
2373 if test "$debug_tcg" = "yes" ; then
2374   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2375 fi
2376 if test "$mingw32" = "yes" ; then
2377   echo "CONFIG_WIN32=y" >> $config_host_mak
2378   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
2379   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
2380   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
2381 else
2382   echo "CONFIG_POSIX=y" >> $config_host_mak
2383 fi
2384
2385 if test "$linux" = "yes" ; then
2386   echo "CONFIG_LINUX=y" >> $config_host_mak
2387 fi
2388
2389 if test "$darwin" = "yes" ; then
2390   echo "CONFIG_DARWIN=y" >> $config_host_mak
2391 fi
2392
2393 if test "$solaris" = "yes" ; then
2394   echo "CONFIG_SOLARIS=y" >> $config_host_mak
2395 fi
2396 if test "$static" = "yes" ; then
2397   echo "CONFIG_STATIC=y" >> $config_host_mak
2398 fi
2399 echo "SRC_PATH=$source_path" >> $config_host_mak
2400 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2401 if test "$modules" = "yes"; then
2402   echo "CONFIG_MODULES=y" >> $config_host_mak
2403 fi
2404
2405 # XXX: suppress that
2406 if [ "$bsd" = "yes" ] ; then
2407   echo "CONFIG_BSD=y" >> $config_host_mak
2408 fi
2409
2410 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2411
2412 if test "$have_asan_iface_fiber" = "yes" ; then
2413     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2414 fi
2415
2416 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2417     echo "CONFIG_TSAN=y" >> $config_host_mak
2418 fi
2419
2420 if test "$plugins" = "yes" ; then
2421     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2422 fi
2423
2424 if test -n "$gdb_bin"; then
2425     gdb_version=$($gdb_bin --version | head -n 1)
2426     if version_ge ${gdb_version##* } 9.1; then
2427         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2428         gdb_arches=$("$source_path/scripts/probe-gdb-support.py" $gdb_bin)
2429     else
2430         gdb_bin=""
2431     fi
2432 fi
2433
2434 if test "$container" != no; then
2435     echo "ENGINE=$container" >> $config_host_mak
2436     echo "RUNC=$runc" >> $config_host_mak
2437 fi
2438 echo "ROMS=$roms" >> $config_host_mak
2439 echo "MAKE=$make" >> $config_host_mak
2440 echo "PYTHON=$python" >> $config_host_mak
2441 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2442 echo "MESON=$meson" >> $config_host_mak
2443 echo "NINJA=$ninja" >> $config_host_mak
2444 echo "CC=$cc" >> $config_host_mak
2445 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2446 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2447 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2448 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2449 echo "GLIB_BINDIR=$glib_bindir" >> $config_host_mak
2450 echo "GLIB_VERSION=$($pkg_config --modversion glib-2.0)" >> $config_host_mak
2451 if test "$glib_has_gslice" = "yes" ; then
2452     echo "HAVE_GLIB_WITH_SLICE_ALLOCATOR=y" >> $config_host_mak
2453 fi
2454 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2455 echo "EXESUF=$EXESUF" >> $config_host_mak
2456
2457 # use included Linux headers
2458 if test "$linux" = "yes" ; then
2459   mkdir -p linux-headers
2460   case "$cpu" in
2461   i386|x86_64)
2462     linux_arch=x86
2463     ;;
2464   ppc|ppc64)
2465     linux_arch=powerpc
2466     ;;
2467   s390x)
2468     linux_arch=s390
2469     ;;
2470   aarch64)
2471     linux_arch=arm64
2472     ;;
2473   loongarch*)
2474     linux_arch=loongarch
2475     ;;
2476   mips64)
2477     linux_arch=mips
2478     ;;
2479   *)
2480     # For most CPUs the kernel architecture name and QEMU CPU name match.
2481     linux_arch="$cpu"
2482     ;;
2483   esac
2484     # For non-KVM architectures we will not have asm headers
2485     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2486       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2487     fi
2488 fi
2489
2490 for target in $target_list; do
2491     target_dir="$target"
2492     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2493     mkdir -p "$target_dir"
2494     case $target in
2495         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2496         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2497     esac
2498 done
2499
2500 if test "$default_targets" = "yes"; then
2501   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2502 fi
2503
2504 if test "$ccache_cpp2" = "yes"; then
2505   echo "export CCACHE_CPP2=y" >> $config_host_mak
2506 fi
2507
2508 if test "$safe_stack" = "yes"; then
2509   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
2510 fi
2511
2512 # tests/tcg configuration
2513 (config_host_mak=tests/tcg/config-host.mak
2514 mkdir -p tests/tcg
2515 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2516 echo "SRC_PATH=$source_path" >> $config_host_mak
2517 echo "HOST_CC=$host_cc" >> $config_host_mak
2518
2519 # versioned checked in the main config_host.mak above
2520 if test -n "$gdb_bin"; then
2521     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2522 fi
2523 if test "$plugins" = "yes" ; then
2524     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2525 fi
2526
2527 tcg_tests_targets=
2528 for target in $target_list; do
2529   arch=${target%%-*}
2530
2531   case $target in
2532     xtensa*-linux-user)
2533       # the toolchain is not complete with headers, only build softmmu tests
2534       continue
2535       ;;
2536     *-softmmu)
2537       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
2538       qemu="qemu-system-$arch"
2539       ;;
2540     *-linux-user|*-bsd-user)
2541       qemu="qemu-$arch"
2542       ;;
2543   esac
2544
2545   if probe_target_compiler $target || test -n "$container_image"; then
2546       test -n "$container_image" && build_static=y
2547       mkdir -p "tests/tcg/$target"
2548       config_target_mak=tests/tcg/$target/config-target.mak
2549       ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
2550       echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
2551       echo "TARGET_NAME=$arch" >> "$config_target_mak"
2552       echo "TARGET=$target" >> "$config_target_mak"
2553       write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
2554       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
2555       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
2556
2557       # will GDB work with these binaries?
2558       if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
2559           echo "HOST_GDB_SUPPORTS_ARCH=y" >> "$config_target_mak"
2560       fi
2561
2562       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
2563       tcg_tests_targets="$tcg_tests_targets $target"
2564   fi
2565 done
2566
2567 if test "$tcg" = "enabled"; then
2568     echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
2569 fi
2570 )
2571
2572 if test "$skip_meson" = no; then
2573   cross="config-meson.cross.new"
2574   meson_quote() {
2575     test $# = 0 && return
2576     echo "'$(echo $* | sed "s/ /','/g")'"
2577   }
2578
2579   echo "# Automatically generated by configure - do not modify" > $cross
2580   echo "[properties]" >> $cross
2581
2582   # unroll any custom device configs
2583   for a in $device_archs; do
2584       eval "c=\$devices_${a}"
2585       echo "${a}-softmmu = '$c'" >> $cross
2586   done
2587
2588   echo "[built-in options]" >> $cross
2589   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2590   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2591   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2592   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2593   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2594   echo "[binaries]" >> $cross
2595   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2596   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2597   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2598   echo "ar = [$(meson_quote $ar)]" >> $cross
2599   echo "nm = [$(meson_quote $nm)]" >> $cross
2600   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
2601   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2602   if has $sdl2_config; then
2603     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2604   fi
2605   echo "strip = [$(meson_quote $strip)]" >> $cross
2606   echo "widl = [$(meson_quote $widl)]" >> $cross
2607   echo "windres = [$(meson_quote $windres)]" >> $cross
2608   echo "windmc = [$(meson_quote $windmc)]" >> $cross
2609   if test "$cross_compile" = "yes"; then
2610     cross_arg="--cross-file config-meson.cross"
2611     echo "[host_machine]" >> $cross
2612     echo "system = '$targetos'" >> $cross
2613     case "$cpu" in
2614         i386)
2615             echo "cpu_family = 'x86'" >> $cross
2616             ;;
2617         *)
2618             echo "cpu_family = '$cpu'" >> $cross
2619             ;;
2620     esac
2621     echo "cpu = '$cpu'" >> $cross
2622     if test "$bigendian" = "yes" ; then
2623         echo "endian = 'big'" >> $cross
2624     else
2625         echo "endian = 'little'" >> $cross
2626     fi
2627   else
2628     cross_arg="--native-file config-meson.cross"
2629   fi
2630   mv $cross config-meson.cross
2631
2632   rm -rf meson-private meson-info meson-logs
2633
2634   # Built-in options
2635   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2636   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2637   test "$pie" = no && meson_option_add -Db_pie=false
2638   test "$werror" = yes && meson_option_add -Dwerror=true
2639
2640   # QEMU options
2641   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2642   test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2643   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2644   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2645   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2646   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2647   test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server"
2648   run_meson() {
2649     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2650   }
2651   eval run_meson $meson_options
2652   if test "$?" -ne 0 ; then
2653       error_exit "meson setup failed"
2654   fi
2655 fi
2656
2657 # Save the configure command line for later reuse.
2658 cat <<EOD >config.status
2659 #!/bin/sh
2660 # Generated by configure.
2661 # Run this file to recreate the current configuration.
2662 # Compiler output produced by configure, useful for debugging
2663 # configure, is in config.log if it exists.
2664 EOD
2665
2666 preserve_env() {
2667     envname=$1
2668
2669     eval envval=\$$envname
2670
2671     if test -n "$envval"
2672     then
2673         echo "$envname='$envval'" >> config.status
2674         echo "export $envname" >> config.status
2675     else
2676         echo "unset $envname" >> config.status
2677     fi
2678 }
2679
2680 # Preserve various env variables that influence what
2681 # features/build target configure will detect
2682 preserve_env AR
2683 preserve_env AS
2684 preserve_env CC
2685 preserve_env CFLAGS
2686 preserve_env CXX
2687 preserve_env CXXFLAGS
2688 preserve_env LD
2689 preserve_env LDFLAGS
2690 preserve_env LD_LIBRARY_PATH
2691 preserve_env MAKE
2692 preserve_env NM
2693 preserve_env OBJCFLAGS
2694 preserve_env OBJCOPY
2695 preserve_env PATH
2696 preserve_env PKG_CONFIG
2697 preserve_env PKG_CONFIG_LIBDIR
2698 preserve_env PKG_CONFIG_PATH
2699 preserve_env PYTHON
2700 preserve_env QEMU_GA_MANUFACTURER
2701 preserve_env QEMU_GA_DISTRO
2702 preserve_env QEMU_GA_VERSION
2703 preserve_env SDL2_CONFIG
2704 preserve_env SMBD
2705 preserve_env STRIP
2706 preserve_env WIDL
2707 preserve_env WINDRES
2708 preserve_env WINDMC
2709
2710 printf "exec" >>config.status
2711 for i in "$0" "$@"; do
2712   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2713 done
2714 echo ' "$@"' >>config.status
2715 chmod +x config.status
2716
2717 rm -r "$TMPDIR1"