configure

   1 #!/bin/sh
   2 #
   3 # qemu configure script (c) 2003 Fabrice Bellard
   4 #
   5
   6 # Unset some variables known to interfere with behavior of common tools,
   7 # just as autoconf does.
   8 CLICOLOR_FORCE= GREP_OPTIONS=
   9 unset CLICOLOR_FORCE GREP_OPTIONS
  10
  11 # Don't allow CCACHE, if present, to use cached results of compile tests!
  12 export CCACHE_RECACHE=yes
  13
  14 # make source path absolute
  15 source_path=$(cd "$(dirname -- "$0")"; pwd)
  16
  17 if test "$PWD" = "$source_path"
  18 then
  19     echo "Using './build' as the directory for build output"
  20
  21     MARKER=build/auto-created-by-configure
  22
  23     if test -e build
  24     then
  25         if test -f $MARKER
  26         then
  27            rm -rf build
  28         else
  29             echo "ERROR: ./build dir already exists and was not previously created by configure"
  30             exit 1
  31         fi
  32     fi
  33
  34     mkdir build
  35     touch $MARKER
  36
  37     cat > GNUmakefile <<'EOF'
  38 # This file is auto-generated by configure to support in-source tree
  39 # 'make' command invocation
  40
  41 ifeq ($(MAKECMDGOALS),)
  42 recurse: all
  43 endif
  44
  45 .NOTPARALLEL: %
  46 %: force
  47         @echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
  48         @$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
  49         @if test "$(MAKECMDGOALS)" = "distclean" && \
  50             test -e build/auto-created-by-configure ; \
  51         then \
  52             rm -rf build GNUmakefile ; \
  53         fi
  54 force: ;
  55 .PHONY: force
  56 GNUmakefile: ;
  57
  58 EOF
  59     cd build
  60     exec $source_path/configure "$@"
  61 fi
  62
  63 # Temporary directory used for files created while
  64 # configure runs. Since it is in the build directory
  65 # we can safely blow away any previous version of it
  66 # (and we need not jump through hoops to try to delete
  67 # it when configure exits.)
  68 TMPDIR1="config-temp"
  69 rm -rf "${TMPDIR1}"
  70 mkdir -p "${TMPDIR1}"
  71 if [ $? -ne 0 ]; then
  72     echo "ERROR: failed to create temporary directory"
  73     exit 1
  74 fi
  75
  76 TMPB="qemu-conf"
  77 TMPC="${TMPDIR1}/${TMPB}.c"
  78 TMPO="${TMPDIR1}/${TMPB}.o"
  79 TMPCXX="${TMPDIR1}/${TMPB}.cxx"
  80 TMPM="${TMPDIR1}/${TMPB}.m"
  81 TMPE="${TMPDIR1}/${TMPB}.exe"
  82
  83 rm -f config.log
  84
  85 # Print a helpful header at the top of config.log
  86 echo "# QEMU configure log $(date)" >> config.log
  87 printf "# Configured with:" >> config.log
  88 printf " '%s'" "$0" "$@" >> config.log
  89 echo >> config.log
  90 echo "#" >> config.log
  91
  92 quote_sh() {
  93     printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
  94 }
  95
  96 print_error() {
  97     (echo
  98     echo "ERROR: $1"
  99     while test -n "$2"; do
 100         echo "       $2"
 101         shift
 102     done
 103     echo) >&2
 104 }
 105
 106 error_exit() {
 107     print_error "$@"
 108     exit 1
 109 }
 110
 111 do_compiler() {
 112     # Run the compiler, capturing its output to the log. First argument
 113     # is compiler binary to execute.
 114     compiler="$1"
 115     shift
 116     if test -n "$BASH_VERSION"; then eval '
 117         echo >>config.log "
 118 funcs: ${FUNCNAME[*]}
 119 lines: ${BASH_LINENO[*]}"
 120     '; fi
 121     echo $compiler "$@" >> config.log
 122     $compiler "$@" >> config.log 2>&1 || return $?
 123     # Test passed. If this is an --enable-werror build, rerun
 124     # the test with -Werror and bail out if it fails. This
 125     # makes warning-generating-errors in configure test code
 126     # obvious to developers.
 127     if test "$werror" != "yes"; then
 128         return 0
 129     fi
 130     # Don't bother rerunning the compile if we were already using -Werror
 131     case "$*" in
 132         *-Werror*)
 133            return 0
 134         ;;
 135     esac
 136     echo $compiler -Werror "$@" >> config.log
 137     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 138     error_exit "configure test passed without -Werror but failed with -Werror." \
 139         "This is probably a bug in the configure script. The failing command" \
 140         "will be at the bottom of config.log." \
 141         "You can run configure with --disable-werror to bypass this check."
 142 }
 143
 144 do_cc() {
 145     do_compiler "$cc" $CPU_CFLAGS "$@"
 146 }
 147
 148 do_cxx() {
 149     do_compiler "$cxx" $CPU_CFLAGS "$@"
 150 }
 151
 152 do_objc() {
 153     do_compiler "$objcc" $CPU_CFLAGS "$@"
 154 }
 155
 156 # Append $2 to the variable named $1, with space separation
 157 add_to() {
 158     eval $1=\${$1:+\"\$$1 \"}\$2
 159 }
 160
 161 update_cxxflags() {
 162     # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
 163     # options which some versions of GCC's C++ compiler complain about
 164     # because they only make sense for C programs.
 165     QEMU_CXXFLAGS="-D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
 166     CONFIGURE_CXXFLAGS=$(echo "$CONFIGURE_CFLAGS" | sed s/-std=gnu11/-std=gnu++11/)
 167     for arg in $QEMU_CFLAGS; do
 168         case $arg in
 169             -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
 170             -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
 171                 ;;
 172             *)
 173                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
 174                 ;;
 175         esac
 176     done
 177 }
 178
 179 compile_object() {
 180   local_cflags="$1"
 181   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 182 }
 183
 184 compile_prog() {
 185   local_cflags="$1"
 186   local_ldflags="$2"
 187   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 188       $LDFLAGS $EXTRA_LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 189 }
 190
 191 # symbolically link $1 to $2.  Portable version of "ln -sf".
 192 symlink() {
 193   rm -rf "$2"
 194   mkdir -p "$(dirname "$2")"
 195   ln -s "$1" "$2"
 196 }
 197
 198 # check whether a command is available to this shell (may be either an
 199 # executable or a builtin)
 200 has() {
 201     type "$1" >/dev/null 2>&1
 202 }
 203
 204 version_ge () {
 205     local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
 206     local_ver2=$(echo "$2" | tr . ' ')
 207     while true; do
 208         set x $local_ver1
 209         local_first=${2-0}
 210         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 211         shift ${2:+2}
 212         local_ver1=$*
 213         set x $local_ver2
 214         # the second argument finished, the first must be greater or equal
 215         test $# = 1 && return 0
 216         test $local_first -lt $2 && return 1
 217         test $local_first -gt $2 && return 0
 218         shift ${2:+2}
 219         local_ver2=$*
 220     done
 221 }
 222
 223 glob() {
 224     eval test -z '"${1#'"$2"'}"'
 225 }
 226
 227 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 228 then
 229   error_exit "main directory cannot contain spaces nor colons"
 230 fi
 231
 232 # default parameters
 233 cpu=""
 234 static="no"
 235 cross_compile="no"
 236 cross_prefix=""
 237 host_cc="cc"
 238 stack_protector=""
 239 safe_stack=""
 240 use_containers="yes"
 241 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 242
 243 if test -e "$source_path/.git"
 244 then
 245     git_submodules_action="update"
 246 else
 247     git_submodules_action="ignore"
 248 fi
 249
 250 git_submodules="ui/keycodemapdb"
 251 git="git"
 252
 253 # Don't accept a target_list environment variable.
 254 unset target_list
 255 unset target_list_exclude
 256
 257 # Default value for a variable defining feature "foo".
 258 #  * foo="no"  feature will only be used if --enable-foo arg is given
 259 #  * foo=""    feature will be searched for, and if found, will be used
 260 #              unless --disable-foo is given
 261 #  * foo="yes" this value will only be set by --enable-foo flag.
 262 #              feature will searched for,
 263 #              if not found, configure exits with error
 264 #
 265 # Always add --enable-foo and --disable-foo command line args.
 266 # Distributions want to ensure that several features are compiled in, and it
 267 # is impossible without a --enable-foo that exits if a feature is not found.
 268
 269 default_feature=""
 270 # parse CC options second
 271 for opt do
 272   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 273   case "$opt" in
 274       --without-default-features)
 275           default_feature="no"
 276   ;;
 277   esac
 278 done
 279
 280 EXTRA_CFLAGS=""
 281 EXTRA_CXXFLAGS=""
 282 EXTRA_OBJCFLAGS=""
 283 EXTRA_LDFLAGS=""
 284
 285 debug_tcg="no"
 286 sanitizers="no"
 287 tsan="no"
 288 fortify_source="yes"
 289 EXESUF=""
 290 modules="no"
 291 prefix="/usr/local"
 292 qemu_suffix="qemu"
 293 softmmu="yes"
 294 linux_user=""
 295 bsd_user=""
 296 pie=""
 297 coroutine=""
 298 plugins="$default_feature"
 299 meson=""
 300 meson_args=""
 301 ninja=""
 302 bindir="bin"
 303 skip_meson=no
 304
 305 # The following Meson options are handled manually (still they
 306 # are included in the automatically generated help message)
 307
 308 # 1. Track which submodules are needed
 309 if test "$default_feature" = no ; then
 310   slirp="disabled"
 311 else
 312   slirp="auto"
 313 fi
 314 fdt="auto"
 315
 316 # 2. Automatically enable/disable other options
 317 tcg="enabled"
 318 cfi="false"
 319
 320 # parse CC options second
 321 for opt do
 322   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 323   case "$opt" in
 324   --cross-prefix=*) cross_prefix="$optarg"
 325                     cross_compile="yes"
 326   ;;
 327   --cc=*) CC="$optarg"
 328   ;;
 329   --cxx=*) CXX="$optarg"
 330   ;;
 331   --cpu=*) cpu="$optarg"
 332   ;;
 333   --extra-cflags=*)
 334     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 335     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 336     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 337     ;;
 338   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 339   ;;
 340   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 341   ;;
 342   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 343   ;;
 344   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 345   ;;
 346   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 347                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 348                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 349   ;;
 350   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 351                 eval "cross_cc_${cc_arch}=\$optarg"
 352                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 353   ;;
 354   esac
 355 done
 356 # OS specific
 357 # Using uname is really, really broken.  Once we have the right set of checks
 358 # we can eliminate its usage altogether.
 359
 360 # Preferred compiler:
 361 #  ${CC} (if set)
 362 #  ${cross_prefix}gcc (if cross-prefix specified)
 363 #  system compiler
 364 if test -z "${CC}${cross_prefix}"; then
 365   cc="$host_cc"
 366 else
 367   cc="${CC-${cross_prefix}gcc}"
 368 fi
 369
 370 if test -z "${CXX}${cross_prefix}"; then
 371   cxx="c++"
 372 else
 373   cxx="${CXX-${cross_prefix}g++}"
 374 fi
 375
 376 ar="${AR-${cross_prefix}ar}"
 377 as="${AS-${cross_prefix}as}"
 378 ccas="${CCAS-$cc}"
 379 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 380 ld="${LD-${cross_prefix}ld}"
 381 ranlib="${RANLIB-${cross_prefix}ranlib}"
 382 nm="${NM-${cross_prefix}nm}"
 383 smbd="$SMBD"
 384 strip="${STRIP-${cross_prefix}strip}"
 385 widl="${WIDL-${cross_prefix}widl}"
 386 windres="${WINDRES-${cross_prefix}windres}"
 387 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 388 query_pkg_config() {
 389     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 390 }
 391 pkg_config=query_pkg_config
 392 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 393
 394 # default flags for all hosts
 395 # We use -fwrapv to tell the compiler that we require a C dialect where
 396 # left shift of signed integers is well defined and has the expected
 397 # 2s-complement style results. (Both clang and gcc agree that it
 398 # provides these semantics.)
 399 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 400 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 401 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 402 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 403
 404 QEMU_LDFLAGS=
 405
 406 # Flags that are needed during configure but later taken care of by Meson
 407 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 408 CONFIGURE_LDFLAGS=
 409
 410
 411 check_define() {
 412 cat > $TMPC <<EOF
 413 #if !defined($1)
 414 #error $1 not defined
 415 #endif
 416 int main(void) { return 0; }
 417 EOF
 418   compile_object
 419 }
 420
 421 check_include() {
 422 cat > $TMPC <<EOF
 423 #include <$1>
 424 int main(void) { return 0; }
 425 EOF
 426   compile_object
 427 }
 428
 429 write_c_skeleton() {
 430     cat > $TMPC <<EOF
 431 int main(void) { return 0; }
 432 EOF
 433 }
 434
 435 if check_define __linux__ ; then
 436   targetos=linux
 437 elif check_define _WIN32 ; then
 438   targetos=windows
 439 elif check_define __OpenBSD__ ; then
 440   targetos=openbsd
 441 elif check_define __sun__ ; then
 442   targetos=sunos
 443 elif check_define __HAIKU__ ; then
 444   targetos=haiku
 445 elif check_define __FreeBSD__ ; then
 446   targetos=freebsd
 447 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 448   targetos=gnu/kfreebsd
 449 elif check_define __DragonFly__ ; then
 450   targetos=dragonfly
 451 elif check_define __NetBSD__; then
 452   targetos=netbsd
 453 elif check_define __APPLE__; then
 454   targetos=darwin
 455 else
 456   # This is a fatal error, but don't report it yet, because we
 457   # might be going to just print the --help text, or it might
 458   # be the result of a missing compiler.
 459   targetos=bogus
 460 fi
 461
 462 # OS specific
 463
 464 mingw32="no"
 465 bsd="no"
 466 linux="no"
 467 solaris="no"
 468 case $targetos in
 469 windows)
 470   mingw32="yes"
 471   plugins="no"
 472   pie="no"
 473 ;;
 474 gnu/kfreebsd)
 475   bsd="yes"
 476 ;;
 477 freebsd)
 478   bsd="yes"
 479   make="${MAKE-gmake}"
 480   # needed for kinfo_getvmmap(3) in libutil.h
 481 ;;
 482 dragonfly)
 483   bsd="yes"
 484   make="${MAKE-gmake}"
 485 ;;
 486 netbsd)
 487   bsd="yes"
 488   make="${MAKE-gmake}"
 489 ;;
 490 openbsd)
 491   bsd="yes"
 492   make="${MAKE-gmake}"
 493 ;;
 494 darwin)
 495   bsd="yes"
 496   darwin="yes"
 497   # Disable attempts to use ObjectiveC features in os/object.h since they
 498   # won't work when we're compiling with gcc as a C compiler.
 499   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 500 ;;
 501 sunos)
 502   solaris="yes"
 503   make="${MAKE-gmake}"
 504 # needed for CMSG_ macros in sys/socket.h
 505   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 506 # needed for TIOCWIN* defines in termios.h
 507   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 508   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 509   # Note that this check is broken for cross-compilation: if you're
 510   # cross-compiling to one of these OSes then you'll need to specify
 511   # the correct CPU with the --cpu option.
 512   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 513     cpu="x86_64"
 514   fi
 515 ;;
 516 haiku)
 517   pie="no"
 518   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 519 ;;
 520 linux)
 521   linux="yes"
 522 ;;
 523 esac
 524
 525 if test ! -z "$cpu" ; then
 526   # command line argument
 527   :
 528 elif check_define __i386__ ; then
 529   cpu="i386"
 530 elif check_define __x86_64__ ; then
 531   if check_define __ILP32__ ; then
 532     cpu="x32"
 533   else
 534     cpu="x86_64"
 535   fi
 536 elif check_define __sparc__ ; then
 537   if check_define __arch64__ ; then
 538     cpu="sparc64"
 539   else
 540     cpu="sparc"
 541   fi
 542 elif check_define _ARCH_PPC ; then
 543   if check_define _ARCH_PPC64 ; then
 544     if check_define _LITTLE_ENDIAN ; then
 545       cpu="ppc64le"
 546     else
 547       cpu="ppc64"
 548     fi
 549   else
 550     cpu="ppc"
 551   fi
 552 elif check_define __mips__ ; then
 553   cpu="mips"
 554 elif check_define __s390__ ; then
 555   if check_define __s390x__ ; then
 556     cpu="s390x"
 557   else
 558     cpu="s390"
 559   fi
 560 elif check_define __riscv ; then
 561   cpu="riscv"
 562 elif check_define __arm__ ; then
 563   cpu="arm"
 564 elif check_define __aarch64__ ; then
 565   cpu="aarch64"
 566 elif check_define __loongarch64 ; then
 567   cpu="loongarch64"
 568 else
 569   cpu=$(uname -m)
 570 fi
 571
 572 # Normalise host CPU name, set multilib cflags
 573 # Note that this case should only have supported host CPUs, not guests.
 574 case "$cpu" in
 575   armv*b|armv*l|arm)
 576     cpu="arm" ;;
 577
 578   i386|i486|i586|i686|i86pc|BePC)
 579     cpu="i386"
 580     CPU_CFLAGS="-m32" ;;
 581   x32)
 582     cpu="x86_64"
 583     CPU_CFLAGS="-mx32" ;;
 584   x86_64|amd64)
 585     cpu="x86_64"
 586     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 587     # If we truly care, we should simply detect this case at
 588     # runtime and generate the fallback to serial emulation.
 589     CPU_CFLAGS="-m64 -mcx16" ;;
 590
 591   mips*)
 592     cpu="mips" ;;
 593
 594   ppc)
 595     CPU_CFLAGS="-m32" ;;
 596   ppc64)
 597     CPU_CFLAGS="-m64 -mbig-endian" ;;
 598   ppc64le)
 599     cpu="ppc64"
 600     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 601
 602   s390)
 603     CPU_CFLAGS="-m31" ;;
 604   s390x)
 605     CPU_CFLAGS="-m64" ;;
 606
 607   sparc|sun4[cdmuv])
 608     cpu="sparc"
 609     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 610   sparc64)
 611     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 612 esac
 613
 614 : ${make=${MAKE-make}}
 615
 616 # We prefer python 3.x. A bare 'python' is traditionally
 617 # python 2.x, but some distros have it as python 3.x, so
 618 # we check that too
 619 python=
 620 explicit_python=no
 621 for binary in "${PYTHON-python3}" python
 622 do
 623     if has "$binary"
 624     then
 625         python=$(command -v "$binary")
 626         break
 627     fi
 628 done
 629
 630
 631 # Check for ancillary tools used in testing
 632 genisoimage=
 633 for binary in genisoimage mkisofs
 634 do
 635     if has $binary
 636     then
 637         genisoimage=$(command -v "$binary")
 638         break
 639     fi
 640 done
 641
 642 # Default objcc to clang if available, otherwise use CC
 643 if has clang; then
 644   objcc=clang
 645 else
 646   objcc="$cc"
 647 fi
 648
 649 if test "$mingw32" = "yes" ; then
 650   EXESUF=".exe"
 651   # MinGW needs -mthreads for TLS and macro _MT.
 652   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 653   write_c_skeleton;
 654   prefix="/qemu"
 655   bindir=""
 656   qemu_suffix=""
 657 fi
 658
 659 werror=""
 660
 661 . $source_path/scripts/meson-buildoptions.sh
 662
 663 meson_options=
 664 meson_option_add() {
 665   meson_options="$meson_options $(quote_sh "$1")"
 666 }
 667 meson_option_parse() {
 668   meson_options="$meson_options $(_meson_option_parse "$@")"
 669   if test $? -eq 1; then
 670     echo "ERROR: unknown option $1"
 671     echo "Try '$0 --help' for more information"
 672     exit 1
 673   fi
 674 }
 675
 676 for opt do
 677   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 678   case "$opt" in
 679   --help|-h) show_help=yes
 680   ;;
 681   --version|-V) exec cat $source_path/VERSION
 682   ;;
 683   --prefix=*) prefix="$optarg"
 684   ;;
 685   --cross-prefix=*)
 686   ;;
 687   --cc=*)
 688   ;;
 689   --host-cc=*) host_cc="$optarg"
 690   ;;
 691   --cxx=*)
 692   ;;
 693   --objcc=*) objcc="$optarg"
 694   ;;
 695   --make=*) make="$optarg"
 696   ;;
 697   --install=*)
 698   ;;
 699   --python=*) python="$optarg" ; explicit_python=yes
 700   ;;
 701   --skip-meson) skip_meson=yes
 702   ;;
 703   --meson=*) meson="$optarg"
 704   ;;
 705   --ninja=*) ninja="$optarg"
 706   ;;
 707   --smbd=*) smbd="$optarg"
 708   ;;
 709   --extra-cflags=*)
 710   ;;
 711   --extra-cxxflags=*)
 712   ;;
 713   --extra-objcflags=*)
 714   ;;
 715   --extra-ldflags=*)
 716   ;;
 717   --cross-cc-*)
 718   ;;
 719   --enable-debug-info) meson_option_add -Ddebug=true
 720   ;;
 721   --disable-debug-info) meson_option_add -Ddebug=false
 722   ;;
 723   --enable-modules)
 724       modules="yes"
 725   ;;
 726   --disable-modules)
 727       modules="no"
 728   ;;
 729   --cpu=*)
 730   ;;
 731   --target-list=*) target_list="$optarg"
 732                    if test "$target_list_exclude"; then
 733                        error_exit "Can't mix --target-list with --target-list-exclude"
 734                    fi
 735   ;;
 736   --target-list-exclude=*) target_list_exclude="$optarg"
 737                    if test "$target_list"; then
 738                        error_exit "Can't mix --target-list-exclude with --target-list"
 739                    fi
 740   ;;
 741   --with-default-devices) meson_option_add -Ddefault_devices=true
 742   ;;
 743   --without-default-devices) meson_option_add -Ddefault_devices=false
 744   ;;
 745   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 746   ;;
 747   --with-devices-*) device_arch=${opt#--with-devices-};
 748                     device_arch=${device_arch%%=*}
 749                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 750                     if test -f "$cf"; then
 751                         device_archs="$device_archs $device_arch"
 752                         eval "devices_${device_arch}=\$optarg"
 753                     else
 754                         error_exit "File $cf does not exist"
 755                     fi
 756   ;;
 757   --without-default-features) # processed above
 758   ;;
 759   --static)
 760     static="yes"
 761     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 762   ;;
 763   --bindir=*) bindir="$optarg"
 764   ;;
 765   --with-suffix=*) qemu_suffix="$optarg"
 766   ;;
 767   --host=*|--build=*|\
 768   --disable-dependency-tracking|\
 769   --sbindir=*|--sharedstatedir=*|\
 770   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 771   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 772     # These switches are silently ignored, for compatibility with
 773     # autoconf-generated configure scripts. This allows QEMU's
 774     # configure to be used by RPM and similar macros that set
 775     # lots of directory switches by default.
 776   ;;
 777   --enable-debug-tcg) debug_tcg="yes"
 778   ;;
 779   --disable-debug-tcg) debug_tcg="no"
 780   ;;
 781   --enable-debug)
 782       # Enable debugging options that aren't excessively noisy
 783       debug_tcg="yes"
 784       meson_option_parse --enable-debug-mutex ""
 785       meson_option_add -Doptimization=0
 786       fortify_source="no"
 787   ;;
 788   --enable-sanitizers) sanitizers="yes"
 789   ;;
 790   --disable-sanitizers) sanitizers="no"
 791   ;;
 792   --enable-tsan) tsan="yes"
 793   ;;
 794   --disable-tsan) tsan="no"
 795   ;;
 796   --disable-slirp) slirp="disabled"
 797   ;;
 798   --enable-slirp) slirp="enabled"
 799   ;;
 800   --enable-slirp=git) slirp="internal"
 801   ;;
 802   --enable-slirp=*) slirp="$optarg"
 803   ;;
 804   --disable-tcg) tcg="disabled"
 805                  plugins="no"
 806   ;;
 807   --enable-tcg) tcg="enabled"
 808   ;;
 809   --disable-system) softmmu="no"
 810   ;;
 811   --enable-system) softmmu="yes"
 812   ;;
 813   --disable-user)
 814       linux_user="no" ;
 815       bsd_user="no" ;
 816   ;;
 817   --enable-user) ;;
 818   --disable-linux-user) linux_user="no"
 819   ;;
 820   --enable-linux-user) linux_user="yes"
 821   ;;
 822   --disable-bsd-user) bsd_user="no"
 823   ;;
 824   --enable-bsd-user) bsd_user="yes"
 825   ;;
 826   --enable-pie) pie="yes"
 827   ;;
 828   --disable-pie) pie="no"
 829   ;;
 830   --enable-werror) werror="yes"
 831   ;;
 832   --disable-werror) werror="no"
 833   ;;
 834   --enable-stack-protector) stack_protector="yes"
 835   ;;
 836   --disable-stack-protector) stack_protector="no"
 837   ;;
 838   --enable-safe-stack) safe_stack="yes"
 839   ;;
 840   --disable-safe-stack) safe_stack="no"
 841   ;;
 842   --enable-cfi)
 843       cfi="true";
 844       meson_option_add -Db_lto=true
 845   ;;
 846   --disable-cfi) cfi="false"
 847   ;;
 848   --disable-fdt) fdt="disabled"
 849   ;;
 850   --enable-fdt) fdt="enabled"
 851   ;;
 852   --enable-fdt=git) fdt="internal"
 853   ;;
 854   --enable-fdt=*) fdt="$optarg"
 855   ;;
 856   --with-coroutine=*) coroutine="$optarg"
 857   ;;
 858   --disable-zlib-test)
 859   ;;
 860   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
 861       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
 862   ;;
 863   --enable-vhdx|--disable-vhdx)
 864       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
 865   ;;
 866   --enable-uuid|--disable-uuid)
 867       echo "$0: $opt is obsolete, UUID support is always built" >&2
 868   ;;
 869   --with-git=*) git="$optarg"
 870   ;;
 871   --with-git-submodules=*)
 872       git_submodules_action="$optarg"
 873   ;;
 874   --enable-plugins) if test "$mingw32" = "yes"; then
 875                         error_exit "TCG plugins not currently supported on Windows platforms"
 876                     else
 877                         plugins="yes"
 878                     fi
 879   ;;
 880   --disable-plugins) plugins="no"
 881   ;;
 882   --enable-containers) use_containers="yes"
 883   ;;
 884   --disable-containers) use_containers="no"
 885   ;;
 886   --gdb=*) gdb_bin="$optarg"
 887   ;;
 888   # backwards compatibility options
 889   --enable-trace-backend=*) meson_option_parse "--enable-trace-backends=$optarg" "$optarg"
 890   ;;
 891   --disable-blobs) meson_option_parse --disable-install-blobs ""
 892   ;;
 893   --enable-tcmalloc) meson_option_parse --enable-malloc=tcmalloc tcmalloc
 894   ;;
 895   --enable-jemalloc) meson_option_parse --enable-malloc=jemalloc jemalloc
 896   ;;
 897   # everything else has the same name in configure and meson
 898   --*) meson_option_parse "$opt" "$optarg"
 899   ;;
 900   esac
 901 done
 902
 903 # test for any invalid configuration combinations
 904 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
 905     error_exit "Can't enable plugins on non-TCG builds"
 906 fi
 907
 908 case $git_submodules_action in
 909     update|validate)
 910         if test ! -e "$source_path/.git"; then
 911             echo "ERROR: cannot $git_submodules_action git submodules without .git"
 912             exit 1
 913         fi
 914     ;;
 915     ignore)
 916         if ! test -f "$source_path/ui/keycodemapdb/README"
 917         then
 918             echo
 919             echo "ERROR: missing GIT submodules"
 920             echo
 921             if test -e "$source_path/.git"; then
 922                 echo "--with-git-submodules=ignore specified but submodules were not"
 923                 echo "checked out.  Please initialize and update submodules."
 924             else
 925                 echo "This is not a GIT checkout but module content appears to"
 926                 echo "be missing. Do not use 'git archive' or GitHub download links"
 927                 echo "to acquire QEMU source archives. Non-GIT builds are only"
 928                 echo "supported with source archives linked from:"
 929                 echo
 930                 echo "  https://www.qemu.org/download/#source"
 931                 echo
 932                 echo "Developers working with GIT can use scripts/archive-source.sh"
 933                 echo "if they need to create valid source archives."
 934             fi
 935             echo
 936             exit 1
 937         fi
 938     ;;
 939     *)
 940         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
 941         exit 1
 942     ;;
 943 esac
 944
 945 if eval test -z "\${cross_cc_$cpu}"; then
 946     eval "cross_cc_${cpu}=\$cc"
 947     cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
 948 fi
 949
 950 default_target_list=""
 951 mak_wilds=""
 952
 953 if [ "$linux_user" != no ]; then
 954     if [ "$targetos" = linux ] && [ -d $source_path/linux-user/include/host/$cpu ]; then
 955         linux_user=yes
 956     elif [ "$linux_user" = yes ]; then
 957         error_exit "linux-user not supported on this architecture"
 958     fi
 959 fi
 960 if [ "$bsd_user" != no ]; then
 961     if [ "$bsd_user" = "" ]; then
 962         test $targetos = freebsd && bsd_user=yes
 963     fi
 964     if [ "$bsd_user" = yes ] && ! [ -d $source_path/bsd-user/$targetos ]; then
 965         error_exit "bsd-user not supported on this host OS"
 966     fi
 967 fi
 968 if [ "$softmmu" = "yes" ]; then
 969     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 970 fi
 971 if [ "$linux_user" = "yes" ]; then
 972     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 973 fi
 974 if [ "$bsd_user" = "yes" ]; then
 975     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 976 fi
 977
 978 for config in $mak_wilds; do
 979     target="$(basename "$config" .mak)"
 980     if echo "$target_list_exclude" | grep -vq "$target"; then
 981         default_target_list="${default_target_list} $target"
 982     fi
 983 done
 984
 985 if test x"$show_help" = x"yes" ; then
 986 cat << EOF
 987
 988 Usage: configure [options]
 989 Options: [defaults in brackets after descriptions]
 990
 991 Standard options:
 992   --help                   print this message
 993   --prefix=PREFIX          install in PREFIX [$prefix]
 994   --target-list=LIST       set target list (default: build all)
 995 $(echo Available targets: $default_target_list | \
 996   fold -s -w 53 | sed -e 's/^/                           /')
 997   --target-list-exclude=LIST exclude a set of targets from the default target-list
 998
 999 Advanced options (experts only):
1000   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1001   --cc=CC                  use C compiler CC [$cc]
1002   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1003                            build time
1004   --cxx=CXX                use C++ compiler CXX [$cxx]
1005   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1006   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
1007   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
1008   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
1009   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1010   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1011   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
1012   --make=MAKE              use specified make [$make]
1013   --python=PYTHON          use specified python [$python]
1014   --meson=MESON            use specified meson [$meson]
1015   --ninja=NINJA            use specified ninja [$ninja]
1016   --smbd=SMBD              use specified smbd [$smbd]
1017   --with-git=GIT           use specified git [$git]
1018   --with-git-submodules=update   update git submodules (default if .git dir exists)
1019   --with-git-submodules=validate fail if git submodules are not up to date
1020   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1021   --static                 enable static build [$static]
1022   --bindir=PATH            install binaries in PATH
1023   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1024   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1025   --without-default-features default all --enable-* options to "disabled"
1026   --without-default-devices  do not include any device that is not needed to
1027                            start the emulator (only use if you are including
1028                            desired devices in configs/devices/)
1029   --with-devices-ARCH=NAME override default configs/devices
1030   --enable-debug           enable common debug build options
1031   --enable-sanitizers      enable default sanitizers
1032   --enable-tsan            enable thread sanitizer
1033   --disable-werror         disable compilation abort on warning
1034   --disable-stack-protector disable compiler-provided stack protection
1035   --cpu=CPU                Build for host CPU [$cpu]
1036   --with-coroutine=BACKEND coroutine backend. Supported options:
1037                            ucontext, sigaltstack, windows
1038   --enable-plugins
1039                            enable plugins via shared library loading
1040   --disable-containers     don't use containers for cross-building
1041   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1042 EOF
1043   meson_options_help
1044 cat << EOF
1045   system          all system emulation targets
1046   user            supported user emulation targets
1047   linux-user      all linux usermode emulation targets
1048   bsd-user        all BSD usermode emulation targets
1049   pie             Position Independent Executables
1050   modules         modules support (non-Windows)
1051   debug-tcg       TCG debugging (default is disabled)
1052   debug-info      debugging information
1053   safe-stack      SafeStack Stack Smash Protection. Depends on
1054                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1055
1056 NOTE: The object files are built at the place where configure is launched
1057 EOF
1058 exit 0
1059 fi
1060
1061 # Remove old dependency files to make sure that they get properly regenerated
1062 rm -f */config-devices.mak.d
1063
1064 if test -z "$python"
1065 then
1066     error_exit "Python not found. Use --python=/path/to/python"
1067 fi
1068 if ! has "$make"
1069 then
1070     error_exit "GNU make ($make) not found"
1071 fi
1072
1073 # Note that if the Python conditional here evaluates True we will exit
1074 # with status 1 which is a shell 'false' value.
1075 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1076   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1077       "Use --python=/path/to/python to specify a supported Python."
1078 fi
1079
1080 # Preserve python version since some functionality is dependent on it
1081 python_version=$($python -c 'import sys; print("%d.%d.%d" % (sys.version_info[0], sys.version_info[1], sys.version_info[2]))' 2>/dev/null)
1082
1083 # Suppress writing compiled files
1084 python="$python -B"
1085
1086 if test -z "$meson"; then
1087     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.59.3; then
1088         meson=meson
1089     elif test $git_submodules_action != 'ignore' ; then
1090         meson=git
1091     elif test -e "${source_path}/meson/meson.py" ; then
1092         meson=internal
1093     else
1094         if test "$explicit_python" = yes; then
1095             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1096         else
1097             error_exit "Meson not found.  Use --meson=/path/to/meson"
1098         fi
1099     fi
1100 else
1101     # Meson uses its own Python interpreter to invoke other Python scripts,
1102     # but the user wants to use the one they specified with --python.
1103     #
1104     # We do not want to override the distro Python interpreter (and sometimes
1105     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1106     # just require --meson=git|internal together with --python.
1107     if test "$explicit_python" = yes; then
1108         case "$meson" in
1109             git | internal) ;;
1110             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1111         esac
1112     fi
1113 fi
1114
1115 if test "$meson" = git; then
1116     git_submodules="${git_submodules} meson"
1117 fi
1118
1119 case "$meson" in
1120     git | internal)
1121         meson="$python ${source_path}/meson/meson.py"
1122         ;;
1123     *) meson=$(command -v "$meson") ;;
1124 esac
1125
1126 # Probe for ninja
1127
1128 if test -z "$ninja"; then
1129     for c in ninja ninja-build samu; do
1130         if has $c; then
1131             ninja=$(command -v "$c")
1132             break
1133         fi
1134     done
1135     if test -z "$ninja"; then
1136       error_exit "Cannot find Ninja"
1137     fi
1138 fi
1139
1140 # Check that the C compiler works. Doing this here before testing
1141 # the host CPU ensures that we had a valid CC to autodetect the
1142 # $cpu var (and we should bail right here if that's not the case).
1143 # It also allows the help message to be printed without a CC.
1144 write_c_skeleton;
1145 if compile_object ; then
1146   : C compiler works ok
1147 else
1148     error_exit "\"$cc\" either does not exist or does not work"
1149 fi
1150 if ! compile_prog ; then
1151     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1152 fi
1153
1154 # Consult white-list to determine whether to enable werror
1155 # by default.  Only enable by default for git builds
1156 if test -z "$werror" ; then
1157     if test "$git_submodules_action" != "ignore" && \
1158         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1159         werror="yes"
1160     else
1161         werror="no"
1162     fi
1163 fi
1164
1165 if test "$targetos" = "bogus"; then
1166     # Now that we know that we're not printing the help and that
1167     # the compiler works (so the results of the check_defines we used
1168     # to identify the OS are reliable), if we didn't recognize the
1169     # host OS we should stop now.
1170     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1171 fi
1172
1173 # Check whether the compiler matches our minimum requirements:
1174 cat > $TMPC << EOF
1175 #if defined(__clang_major__) && defined(__clang_minor__)
1176 # ifdef __apple_build_version__
1177 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1178 #   error You need at least XCode Clang v10.0 to compile QEMU
1179 #  endif
1180 # else
1181 #  if __clang_major__ < 6 || (__clang_major__ == 6 && __clang_minor__ < 0)
1182 #   error You need at least Clang v6.0 to compile QEMU
1183 #  endif
1184 # endif
1185 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1186 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1187 #  error You need at least GCC v7.4.0 to compile QEMU
1188 # endif
1189 #else
1190 # error You either need GCC or Clang to compiler QEMU
1191 #endif
1192 int main (void) { return 0; }
1193 EOF
1194 if ! compile_prog "" "" ; then
1195     error_exit "You need at least GCC v7.4 or Clang v6.0 (or XCode Clang v10.0)"
1196 fi
1197
1198 # Accumulate -Wfoo and -Wno-bar separately.
1199 # We will list all of the enable flags first, and the disable flags second.
1200 # Note that we do not add -Werror, because that would enable it for all
1201 # configure tests. If a configure test failed due to -Werror this would
1202 # just silently disable some features, so it's too error prone.
1203
1204 warn_flags=
1205 add_to warn_flags -Wold-style-declaration
1206 add_to warn_flags -Wold-style-definition
1207 add_to warn_flags -Wtype-limits
1208 add_to warn_flags -Wformat-security
1209 add_to warn_flags -Wformat-y2k
1210 add_to warn_flags -Winit-self
1211 add_to warn_flags -Wignored-qualifiers
1212 add_to warn_flags -Wempty-body
1213 add_to warn_flags -Wnested-externs
1214 add_to warn_flags -Wendif-labels
1215 add_to warn_flags -Wexpansion-to-defined
1216 add_to warn_flags -Wimplicit-fallthrough=2
1217
1218 nowarn_flags=
1219 add_to nowarn_flags -Wno-initializer-overrides
1220 add_to nowarn_flags -Wno-missing-include-dirs
1221 add_to nowarn_flags -Wno-shift-negative-value
1222 add_to nowarn_flags -Wno-string-plus-int
1223 add_to nowarn_flags -Wno-typedef-redefinition
1224 add_to nowarn_flags -Wno-tautological-type-limit-compare
1225 add_to nowarn_flags -Wno-psabi
1226
1227 gcc_flags="$warn_flags $nowarn_flags"
1228
1229 cc_has_warning_flag() {
1230     write_c_skeleton;
1231
1232     # Use the positive sense of the flag when testing for -Wno-wombat
1233     # support (gcc will happily accept the -Wno- form of unknown
1234     # warning options).
1235     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1236     compile_prog "-Werror $optflag" ""
1237 }
1238
1239 objcc_has_warning_flag() {
1240     cat > $TMPM <<EOF
1241 int main(void) { return 0; }
1242 EOF
1243
1244     # Use the positive sense of the flag when testing for -Wno-wombat
1245     # support (gcc will happily accept the -Wno- form of unknown
1246     # warning options).
1247     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1248     do_objc -Werror $optflag \
1249       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1250       -o $TMPE $TMPM $QEMU_LDFLAGS
1251 }
1252
1253 for flag in $gcc_flags; do
1254     if cc_has_warning_flag $flag ; then
1255         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1256     fi
1257     if objcc_has_warning_flag $flag ; then
1258         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1259     fi
1260 done
1261
1262 if test "$stack_protector" != "no"; then
1263   cat > $TMPC << EOF
1264 int main(int argc, char *argv[])
1265 {
1266     char arr[64], *p = arr, *c = argv[0];
1267     while (*c) {
1268         *p++ = *c++;
1269     }
1270     return 0;
1271 }
1272 EOF
1273   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1274   sp_on=0
1275   for flag in $gcc_flags; do
1276     # We need to check both a compile and a link, since some compiler
1277     # setups fail only on a .c->.o compile and some only at link time
1278     if compile_object "-Werror $flag" &&
1279        compile_prog "-Werror $flag" ""; then
1280       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1281       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1282       sp_on=1
1283       break
1284     fi
1285   done
1286   if test "$stack_protector" = yes; then
1287     if test $sp_on = 0; then
1288       error_exit "Stack protector not supported"
1289     fi
1290   fi
1291 fi
1292
1293 # Disable -Wmissing-braces on older compilers that warn even for
1294 # the "universal" C zero initializer {0}.
1295 cat > $TMPC << EOF
1296 struct {
1297   int a[2];
1298 } x = {0};
1299 EOF
1300 if compile_object "-Werror" "" ; then
1301   :
1302 else
1303   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
1304 fi
1305
1306 # Our module code doesn't support Windows
1307 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1308   error_exit "Modules are not available for Windows"
1309 fi
1310
1311 # Static linking is not possible with plugins, modules or PIE
1312 if test "$static" = "yes" ; then
1313   if test "$modules" = "yes" ; then
1314     error_exit "static and modules are mutually incompatible"
1315   fi
1316   if test "$plugins" = "yes"; then
1317     error_exit "static and plugins are mutually incompatible"
1318   else
1319     plugins="no"
1320   fi
1321 fi
1322 test "$plugins" = "" && plugins=yes
1323
1324 cat > $TMPC << EOF
1325
1326 #ifdef __linux__
1327 #  define THREAD __thread
1328 #else
1329 #  define THREAD
1330 #endif
1331 static THREAD int tls_var;
1332 int main(void) { return tls_var; }
1333 EOF
1334
1335 # Check we support -fno-pie and -no-pie first; we will need the former for
1336 # building ROMs, and both for everything if --disable-pie is passed.
1337 if compile_prog "-Werror -fno-pie" "-no-pie"; then
1338   CFLAGS_NOPIE="-fno-pie"
1339   LDFLAGS_NOPIE="-no-pie"
1340 fi
1341
1342 if test "$static" = "yes"; then
1343   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1344     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1345     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
1346     pie="yes"
1347   elif test "$pie" = "yes"; then
1348     error_exit "-static-pie not available due to missing toolchain support"
1349   else
1350     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
1351     pie="no"
1352   fi
1353 elif test "$pie" = "no"; then
1354   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
1355   CONFIGURE_LDFLAGS="$LDFLAGS_NOPIE $CONFIGURE_LDFLAGS"
1356 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1357   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1358   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1359   pie="yes"
1360 elif test "$pie" = "yes"; then
1361   error_exit "PIE not available due to missing toolchain support"
1362 else
1363   echo "Disabling PIE due to missing toolchain support"
1364   pie="no"
1365 fi
1366
1367 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
1368 # The combination is known as "full relro", because .got.plt is read-only too.
1369 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
1370   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
1371 fi
1372
1373 ##########################################
1374 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1375 # use i686 as default anyway, but for those that don't, an explicit
1376 # specification is necessary
1377
1378 if test "$cpu" = "i386"; then
1379   cat > $TMPC << EOF
1380 static int sfaa(int *ptr)
1381 {
1382   return __sync_fetch_and_and(ptr, 0);
1383 }
1384
1385 int main(void)
1386 {
1387   int val = 42;
1388   val = __sync_val_compare_and_swap(&val, 0, 1);
1389   sfaa(&val);
1390   return val;
1391 }
1392 EOF
1393   if ! compile_prog "" "" ; then
1394     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1395   fi
1396 fi
1397
1398 if test "$tcg" = "enabled"; then
1399     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1400     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1401 fi
1402
1403 if test -z "${target_list+xxx}" ; then
1404     default_targets=yes
1405     for target in $default_target_list; do
1406         target_list="$target_list $target"
1407     done
1408     target_list="${target_list# }"
1409 else
1410     default_targets=no
1411     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1412     for target in $target_list; do
1413         # Check that we recognised the target name; this allows a more
1414         # friendly error message than if we let it fall through.
1415         case " $default_target_list " in
1416             *" $target "*)
1417                 ;;
1418             *)
1419                 error_exit "Unknown target name '$target'"
1420                 ;;
1421         esac
1422     done
1423 fi
1424
1425 # see if system emulation was really requested
1426 case " $target_list " in
1427   *"-softmmu "*) softmmu=yes
1428   ;;
1429   *) softmmu=no
1430   ;;
1431 esac
1432
1433 feature_not_found() {
1434   feature=$1
1435   remedy=$2
1436
1437   error_exit "User requested feature $feature" \
1438       "configure was not able to find it." \
1439       "$remedy"
1440 }
1441
1442 # ---
1443 # big/little endian test
1444 cat > $TMPC << EOF
1445 #include <stdio.h>
1446 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
1447 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
1448 int main(int argc, char *argv[])
1449 {
1450     return printf("%s %s\n", (char *)big_endian, (char *)little_endian);
1451 }
1452 EOF
1453
1454 if compile_prog ; then
1455     if strings -a $TMPE | grep -q BiGeNdIaN ; then
1456         bigendian="yes"
1457     elif strings -a $TMPE | grep -q LiTtLeEnDiAn ; then
1458         bigendian="no"
1459     else
1460         echo big/little test failed
1461         exit 1
1462     fi
1463 else
1464     echo big/little test failed
1465     exit 1
1466 fi
1467
1468 ##########################################
1469 # pkg-config probe
1470
1471 if ! has "$pkg_config_exe"; then
1472   error_exit "pkg-config binary '$pkg_config_exe' not found"
1473 fi
1474
1475 ##########################################
1476 # glib support probe
1477
1478 # When bumping glib_req_ver, please check also whether we should increase
1479 # the _WIN32_WINNT setting in osdep.h according to the value from glib
1480 glib_req_ver=2.56
1481 glib_modules=gthread-2.0
1482 if test "$modules" = yes; then
1483     glib_modules="$glib_modules gmodule-export-2.0"
1484 elif test "$plugins" = "yes"; then
1485     glib_modules="$glib_modules gmodule-no-export-2.0"
1486 fi
1487
1488 for i in $glib_modules; do
1489     if $pkg_config --atleast-version=$glib_req_ver $i; then
1490         glib_cflags=$($pkg_config --cflags $i)
1491         glib_libs=$($pkg_config --libs $i)
1492     else
1493         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
1494     fi
1495 done
1496
1497 glib_bindir="$($pkg_config --variable=bindir glib-2.0)"
1498 if test -z "$glib_bindir" ; then
1499         glib_bindir="$($pkg_config --variable=prefix glib-2.0)"/bin
1500 fi
1501
1502 # This workaround is required due to a bug in pkg-config file for glib as it
1503 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
1504
1505 if test "$static" = yes && test "$mingw32" = yes; then
1506     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
1507 fi
1508
1509 # Sanity check that the current size_t matches the
1510 # size that glib thinks it should be. This catches
1511 # problems on multi-arch where people try to build
1512 # 32-bit QEMU while pointing at 64-bit glib headers
1513 cat > $TMPC <<EOF
1514 #include <glib.h>
1515 #include <unistd.h>
1516
1517 #define QEMU_BUILD_BUG_ON(x) \
1518   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
1519
1520 int main(void) {
1521    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
1522    return 0;
1523 }
1524 EOF
1525
1526 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
1527     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
1528                "You probably need to set PKG_CONFIG_LIBDIR"\
1529                "to point to the right pkg-config files for your"\
1530                "build target"
1531 fi
1532
1533 # Silence clang warnings triggered by glib < 2.57.2
1534 cat > $TMPC << EOF
1535 #include <glib.h>
1536 typedef struct Foo {
1537     int i;
1538 } Foo;
1539 static void foo_free(Foo *f)
1540 {
1541     g_free(f);
1542 }
1543 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
1544 int main(void) { return 0; }
1545 EOF
1546 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
1547     if cc_has_warning_flag "-Wno-unused-function"; then
1548         glib_cflags="$glib_cflags -Wno-unused-function"
1549         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
1550     fi
1551 fi
1552
1553 ##########################################
1554 # fdt probe
1555
1556 case "$fdt" in
1557   auto | enabled | internal)
1558     # Simpler to always update submodule, even if not needed.
1559     git_submodules="${git_submodules} dtc"
1560     ;;
1561 esac
1562
1563 ##########################################
1564 # check and set a backend for coroutine
1565
1566 # We prefer ucontext, but it's not always possible. The fallback
1567 # is sigcontext. On Windows the only valid backend is the Windows
1568 # specific one.
1569
1570 ucontext_works=no
1571 if test "$darwin" != "yes"; then
1572   cat > $TMPC << EOF
1573 #include <ucontext.h>
1574 #ifdef __stub_makecontext
1575 #error Ignoring glibc stub makecontext which will always fail
1576 #endif
1577 int main(void) { makecontext(0, 0, 0); return 0; }
1578 EOF
1579   if compile_prog "" "" ; then
1580     ucontext_works=yes
1581   fi
1582 fi
1583
1584 if test "$coroutine" = ""; then
1585   if test "$mingw32" = "yes"; then
1586     coroutine=win32
1587   elif test "$ucontext_works" = "yes"; then
1588     coroutine=ucontext
1589   else
1590     coroutine=sigaltstack
1591   fi
1592 else
1593   case $coroutine in
1594   windows)
1595     if test "$mingw32" != "yes"; then
1596       error_exit "'windows' coroutine backend only valid for Windows"
1597     fi
1598     # Unfortunately the user visible backend name doesn't match the
1599     # coroutine-*.c filename for this case, so we have to adjust it here.
1600     coroutine=win32
1601     ;;
1602   ucontext)
1603     if test "$ucontext_works" != "yes"; then
1604       feature_not_found "ucontext"
1605     fi
1606     ;;
1607   sigaltstack)
1608     if test "$mingw32" = "yes"; then
1609       error_exit "only the 'windows' coroutine backend is valid for Windows"
1610     fi
1611     ;;
1612   *)
1613     error_exit "unknown coroutine backend $coroutine"
1614     ;;
1615   esac
1616 fi
1617
1618 ##################################################
1619 # SafeStack
1620
1621
1622 if test "$safe_stack" = "yes"; then
1623 cat > $TMPC << EOF
1624 int main(int argc, char *argv[])
1625 {
1626 #if ! __has_feature(safe_stack)
1627 #error SafeStack Disabled
1628 #endif
1629     return 0;
1630 }
1631 EOF
1632   flag="-fsanitize=safe-stack"
1633   # Check that safe-stack is supported and enabled.
1634   if compile_prog "-Werror $flag" "$flag"; then
1635     # Flag needed both at compilation and at linking
1636     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1637     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1638   else
1639     error_exit "SafeStack not supported by your compiler"
1640   fi
1641   if test "$coroutine" != "ucontext"; then
1642     error_exit "SafeStack is only supported by the coroutine backend ucontext"
1643   fi
1644 else
1645 cat > $TMPC << EOF
1646 int main(int argc, char *argv[])
1647 {
1648 #if defined(__has_feature)
1649 #if __has_feature(safe_stack)
1650 #error SafeStack Enabled
1651 #endif
1652 #endif
1653     return 0;
1654 }
1655 EOF
1656 if test "$safe_stack" = "no"; then
1657   # Make sure that safe-stack is disabled
1658   if ! compile_prog "-Werror" ""; then
1659     # SafeStack was already enabled, try to explicitly remove the feature
1660     flag="-fno-sanitize=safe-stack"
1661     if ! compile_prog "-Werror $flag" "$flag"; then
1662       error_exit "Configure cannot disable SafeStack"
1663     fi
1664     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1665     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1666   fi
1667 else # "$safe_stack" = ""
1668   # Set safe_stack to yes or no based on pre-existing flags
1669   if compile_prog "-Werror" ""; then
1670     safe_stack="no"
1671   else
1672     safe_stack="yes"
1673     if test "$coroutine" != "ucontext"; then
1674       error_exit "SafeStack is only supported by the coroutine backend ucontext"
1675     fi
1676   fi
1677 fi
1678 fi
1679
1680 ########################################
1681 # check if ccache is interfering with
1682 # semantic analysis of macros
1683
1684 unset CCACHE_CPP2
1685 ccache_cpp2=no
1686 cat > $TMPC << EOF
1687 static const int Z = 1;
1688 #define fn() ({ Z; })
1689 #define TAUT(X) ((X) == Z)
1690 #define PAREN(X, Y) (X == Y)
1691 #define ID(X) (X)
1692 int main(int argc, char *argv[])
1693 {
1694     int x = 0, y = 0;
1695     x = ID(x);
1696     x = fn();
1697     fn();
1698     if (PAREN(x, y)) return 0;
1699     if (TAUT(Z)) return 0;
1700     return 0;
1701 }
1702 EOF
1703
1704 if ! compile_object "-Werror"; then
1705     ccache_cpp2=yes
1706 fi
1707
1708 #################################################
1709 # clang does not support glibc + FORTIFY_SOURCE.
1710
1711 if test "$fortify_source" != "no"; then
1712   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
1713     fortify_source="no";
1714   elif test -n "$cxx" && has $cxx &&
1715        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
1716     fortify_source="no";
1717   else
1718     fortify_source="yes"
1719   fi
1720 fi
1721
1722 ##########################################
1723 # checks for sanitizers
1724
1725 have_asan=no
1726 have_ubsan=no
1727 have_asan_iface_h=no
1728 have_asan_iface_fiber=no
1729
1730 if test "$sanitizers" = "yes" ; then
1731   write_c_skeleton
1732   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
1733       have_asan=yes
1734   fi
1735
1736   # we could use a simple skeleton for flags checks, but this also
1737   # detect the static linking issue of ubsan, see also:
1738   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
1739   cat > $TMPC << EOF
1740 #include <stdlib.h>
1741 int main(void) {
1742     void *tmp = malloc(10);
1743     if (tmp != NULL) {
1744         return *(int *)(tmp + 2);
1745     }
1746     return 1;
1747 }
1748 EOF
1749   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
1750       have_ubsan=yes
1751   fi
1752
1753   if check_include "sanitizer/asan_interface.h" ; then
1754       have_asan_iface_h=yes
1755   fi
1756
1757   cat > $TMPC << EOF
1758 #include <sanitizer/asan_interface.h>
1759 int main(void) {
1760   __sanitizer_start_switch_fiber(0, 0, 0);
1761   return 0;
1762 }
1763 EOF
1764   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
1765       have_asan_iface_fiber=yes
1766   fi
1767 fi
1768
1769 # Thread sanitizer is, for now, much noisier than the other sanitizers;
1770 # keep it separate until that is not the case.
1771 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
1772   error_exit "TSAN is not supported with other sanitiziers."
1773 fi
1774 have_tsan=no
1775 have_tsan_iface_fiber=no
1776 if test "$tsan" = "yes" ; then
1777   write_c_skeleton
1778   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1779       have_tsan=yes
1780   fi
1781   cat > $TMPC << EOF
1782 #include <sanitizer/tsan_interface.h>
1783 int main(void) {
1784   __tsan_create_fiber(0);
1785   return 0;
1786 }
1787 EOF
1788   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1789       have_tsan_iface_fiber=yes
1790   fi
1791 fi
1792
1793 ##########################################
1794 # check for slirp
1795
1796 case "$slirp" in
1797   auto | enabled | internal)
1798     # Simpler to always update submodule, even if not needed.
1799     git_submodules="${git_submodules} slirp"
1800     ;;
1801 esac
1802
1803 ##########################################
1804 # End of CC checks
1805 # After here, no more $cc or $ld runs
1806
1807 write_c_skeleton
1808
1809 if test "$fortify_source" = "yes" ; then
1810   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
1811 fi
1812
1813 case "$ARCH" in
1814 alpha)
1815   # Ensure there's only a single GP
1816   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
1817 ;;
1818 esac
1819
1820 if test "$have_asan" = "yes"; then
1821   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
1822   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
1823   if test "$have_asan_iface_h" = "no" ; then
1824       echo "ASAN build enabled, but ASAN header missing." \
1825            "Without code annotation, the report may be inferior."
1826   elif test "$have_asan_iface_fiber" = "no" ; then
1827       echo "ASAN build enabled, but ASAN header is too old." \
1828            "Without code annotation, the report may be inferior."
1829   fi
1830 fi
1831 if test "$have_tsan" = "yes" ; then
1832   if test "$have_tsan_iface_fiber" = "yes" ; then
1833     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
1834     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
1835   else
1836     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
1837   fi
1838 elif test "$tsan" = "yes" ; then
1839   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
1840 fi
1841 if test "$have_ubsan" = "yes"; then
1842   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
1843   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
1844 fi
1845
1846 ##########################################
1847
1848 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
1849 if test "$solaris" = "no" && test "$tsan" = "no"; then
1850     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
1851         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
1852     fi
1853 fi
1854
1855 # Guest agent Windows MSI package
1856
1857 if test "$QEMU_GA_MANUFACTURER" = ""; then
1858   QEMU_GA_MANUFACTURER=QEMU
1859 fi
1860 if test "$QEMU_GA_DISTRO" = ""; then
1861   QEMU_GA_DISTRO=Linux
1862 fi
1863 if test "$QEMU_GA_VERSION" = ""; then
1864     QEMU_GA_VERSION=$(cat $source_path/VERSION)
1865 fi
1866
1867 # Mac OS X ships with a broken assembler
1868 roms=
1869 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
1870         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
1871         test "$targetos" != "haiku" && test "$softmmu" = yes ; then
1872     # Different host OS linkers have different ideas about the name of the ELF
1873     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
1874     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
1875     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
1876         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
1877             ld_i386_emulation="$emu"
1878             roms="optionrom"
1879             break
1880         fi
1881     done
1882 fi
1883
1884 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
1885 # or -march=z10 (which is the lowest architecture level that Clang supports)
1886 if test "$cpu" = "s390x" ; then
1887   write_c_skeleton
1888   compile_prog "-march=z900" ""
1889   has_z900=$?
1890   if [ $has_z900 = 0 ] || compile_object "-march=z10 -msoft-float -Werror"; then
1891     if [ $has_z900 != 0 ]; then
1892       echo "WARNING: Your compiler does not support the z900!"
1893       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
1894     fi
1895     roms="$roms s390-ccw"
1896     # SLOF is required for building the s390-ccw firmware on s390x,
1897     # since it is using the libnet code from SLOF for network booting.
1898     git_submodules="${git_submodules} roms/SLOF"
1899   fi
1900 fi
1901
1902 # Check that the C++ compiler exists and works with the C compiler.
1903 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
1904 if has $cxx; then
1905     cat > $TMPC <<EOF
1906 int c_function(void);
1907 int main(void) { return c_function(); }
1908 EOF
1909
1910     compile_object
1911
1912     cat > $TMPCXX <<EOF
1913 extern "C" {
1914    int c_function(void);
1915 }
1916 int c_function(void) { return 42; }
1917 EOF
1918
1919     update_cxxflags
1920
1921     if do_cxx $CXXFLAGS $EXTRA_CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
1922         # C++ compiler $cxx works ok with C compiler $cc
1923         :
1924     else
1925         echo "C++ compiler $cxx does not work with C compiler $cc"
1926         echo "Disabling C++ specific optional code"
1927         cxx=
1928     fi
1929 else
1930     echo "No C++ compiler available; disabling C++ specific optional code"
1931     cxx=
1932 fi
1933
1934 if !(GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
1935     exit 1
1936 fi
1937
1938 config_host_mak="config-host.mak"
1939
1940 echo "# Automatically generated by configure - do not modify" > $config_host_mak
1941 echo >> $config_host_mak
1942
1943 echo all: >> $config_host_mak
1944 echo "GIT=$git" >> $config_host_mak
1945 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
1946 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
1947
1948 if test "$debug_tcg" = "yes" ; then
1949   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
1950 fi
1951 if test "$mingw32" = "yes" ; then
1952   echo "CONFIG_WIN32=y" >> $config_host_mak
1953   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
1954   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
1955   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
1956 else
1957   echo "CONFIG_POSIX=y" >> $config_host_mak
1958 fi
1959
1960 if test "$linux" = "yes" ; then
1961   echo "CONFIG_LINUX=y" >> $config_host_mak
1962 fi
1963
1964 if test "$darwin" = "yes" ; then
1965   echo "CONFIG_DARWIN=y" >> $config_host_mak
1966 fi
1967
1968 if test "$solaris" = "yes" ; then
1969   echo "CONFIG_SOLARIS=y" >> $config_host_mak
1970 fi
1971 if test "$static" = "yes" ; then
1972   echo "CONFIG_STATIC=y" >> $config_host_mak
1973 fi
1974 echo "SRC_PATH=$source_path" >> $config_host_mak
1975 echo "TARGET_DIRS=$target_list" >> $config_host_mak
1976 if test "$modules" = "yes"; then
1977   echo "CONFIG_MODULES=y" >> $config_host_mak
1978 fi
1979
1980 # XXX: suppress that
1981 if [ "$bsd" = "yes" ] ; then
1982   echo "CONFIG_BSD=y" >> $config_host_mak
1983 fi
1984
1985 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
1986
1987 if test "$have_asan_iface_fiber" = "yes" ; then
1988     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
1989 fi
1990
1991 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
1992     echo "CONFIG_TSAN=y" >> $config_host_mak
1993 fi
1994
1995 if test "$plugins" = "yes" ; then
1996     echo "CONFIG_PLUGIN=y" >> $config_host_mak
1997 fi
1998
1999 if test -n "$gdb_bin"; then
2000     gdb_version=$($gdb_bin --version | head -n 1)
2001     if version_ge ${gdb_version##* } 9.1; then
2002         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2003     fi
2004 fi
2005
2006 echo "ROMS=$roms" >> $config_host_mak
2007 echo "MAKE=$make" >> $config_host_mak
2008 echo "PYTHON=$python" >> $config_host_mak
2009 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2010 echo "MESON=$meson" >> $config_host_mak
2011 echo "NINJA=$ninja" >> $config_host_mak
2012 echo "CC=$cc" >> $config_host_mak
2013 echo "AR=$ar" >> $config_host_mak
2014 echo "AS=$as" >> $config_host_mak
2015 echo "CCAS=$ccas" >> $config_host_mak
2016 echo "OBJCOPY=$objcopy" >> $config_host_mak
2017 echo "LD=$ld" >> $config_host_mak
2018 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2019 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
2020 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2021 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2022 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2023 echo "GLIB_BINDIR=$glib_bindir" >> $config_host_mak
2024 echo "GLIB_VERSION=$(pkg-config --modversion glib-2.0)" >> $config_host_mak
2025 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2026 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
2027 echo "STRIP=$strip" >> $config_host_mak
2028 echo "EXESUF=$EXESUF" >> $config_host_mak
2029
2030 # use included Linux headers
2031 if test "$linux" = "yes" ; then
2032   mkdir -p linux-headers
2033   case "$cpu" in
2034   i386|x86_64)
2035     linux_arch=x86
2036     ;;
2037   ppc|ppc64)
2038     linux_arch=powerpc
2039     ;;
2040   s390x)
2041     linux_arch=s390
2042     ;;
2043   aarch64)
2044     linux_arch=arm64
2045     ;;
2046   loongarch*)
2047     linux_arch=loongarch
2048     ;;
2049   mips64)
2050     linux_arch=mips
2051     ;;
2052   *)
2053     # For most CPUs the kernel architecture name and QEMU CPU name match.
2054     linux_arch="$cpu"
2055     ;;
2056   esac
2057     # For non-KVM architectures we will not have asm headers
2058     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2059       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2060     fi
2061 fi
2062
2063 for target in $target_list; do
2064     target_dir="$target"
2065     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2066     mkdir -p $target_dir
2067     case $target in
2068         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2069         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2070     esac
2071 done
2072
2073 if test "$default_targets" = "yes"; then
2074   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2075 fi
2076
2077 if test "$ccache_cpp2" = "yes"; then
2078   echo "export CCACHE_CPP2=y" >> $config_host_mak
2079 fi
2080
2081 if test "$safe_stack" = "yes"; then
2082   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
2083 fi
2084
2085 # If we're using a separate build tree, set it up now.
2086 # LINKS are things to symlink back into the source tree
2087 # (these can be both files and directories).
2088 # Caution: do not add files or directories here using wildcards. This
2089 # will result in problems later if a new file matching the wildcard is
2090 # added to the source tree -- nothing will cause configure to be rerun
2091 # so the build tree will be missing the link back to the new file, and
2092 # tests might fail. Prefer to keep the relevant files in their own
2093 # directory and symlink the directory instead.
2094 LINKS="Makefile"
2095 LINKS="$LINKS tests/tcg/Makefile.target"
2096 LINKS="$LINKS pc-bios/optionrom/Makefile"
2097 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
2098 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
2099 LINKS="$LINKS tests/avocado tests/data"
2100 LINKS="$LINKS tests/qemu-iotests/check"
2101 LINKS="$LINKS python"
2102 LINKS="$LINKS contrib/plugins/Makefile "
2103 for bios_file in \
2104     $source_path/pc-bios/*.bin \
2105     $source_path/pc-bios/*.elf \
2106     $source_path/pc-bios/*.lid \
2107     $source_path/pc-bios/*.rom \
2108     $source_path/pc-bios/*.dtb \
2109     $source_path/pc-bios/*.img \
2110     $source_path/pc-bios/openbios-* \
2111     $source_path/pc-bios/u-boot.* \
2112     $source_path/pc-bios/palcode-* \
2113     $source_path/pc-bios/qemu_vga.ndrv
2114
2115 do
2116     LINKS="$LINKS pc-bios/$(basename $bios_file)"
2117 done
2118 for f in $LINKS ; do
2119     if [ -e "$source_path/$f" ]; then
2120         mkdir -p `dirname ./$f`
2121         symlink "$source_path/$f" "$f"
2122     fi
2123 done
2124
2125 (for i in $cross_cc_vars; do
2126   export $i
2127 done
2128 export target_list source_path use_containers cpu host_cc
2129 $source_path/tests/tcg/configure.sh)
2130
2131 config_mak=pc-bios/optionrom/config.mak
2132 echo "# Automatically generated by configure - do not modify" > $config_mak
2133 echo "TOPSRC_DIR=$source_path" >> $config_mak
2134
2135 if test "$skip_meson" = no; then
2136   cross="config-meson.cross.new"
2137   meson_quote() {
2138     test $# = 0 && return
2139     echo "'$(echo $* | sed "s/ /','/g")'"
2140   }
2141
2142   echo "# Automatically generated by configure - do not modify" > $cross
2143   echo "[properties]" >> $cross
2144
2145   # unroll any custom device configs
2146   for a in $device_archs; do
2147       eval "c=\$devices_${a}"
2148       echo "${a}-softmmu = '$c'" >> $cross
2149   done
2150
2151   test -z "$cxx" && echo "link_language = 'c'" >> $cross
2152   echo "[built-in options]" >> $cross
2153   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2154   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2155   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2156   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2157   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2158   echo "[binaries]" >> $cross
2159   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2160   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2161   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2162   echo "ar = [$(meson_quote $ar)]" >> $cross
2163   echo "nm = [$(meson_quote $nm)]" >> $cross
2164   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
2165   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2166   if has $sdl2_config; then
2167     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2168   fi
2169   echo "strip = [$(meson_quote $strip)]" >> $cross
2170   echo "widl = [$(meson_quote $widl)]" >> $cross
2171   echo "windres = [$(meson_quote $windres)]" >> $cross
2172   if test "$cross_compile" = "yes"; then
2173     cross_arg="--cross-file config-meson.cross"
2174     echo "[host_machine]" >> $cross
2175     echo "system = '$targetos'" >> $cross
2176     case "$cpu" in
2177         i386)
2178             echo "cpu_family = 'x86'" >> $cross
2179             ;;
2180         *)
2181             echo "cpu_family = '$cpu'" >> $cross
2182             ;;
2183     esac
2184     echo "cpu = '$cpu'" >> $cross
2185     if test "$bigendian" = "yes" ; then
2186         echo "endian = 'big'" >> $cross
2187     else
2188         echo "endian = 'little'" >> $cross
2189     fi
2190   else
2191     cross_arg="--native-file config-meson.cross"
2192   fi
2193   mv $cross config-meson.cross
2194
2195   rm -rf meson-private meson-info meson-logs
2196
2197   # Built-in options
2198   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2199   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2200   test "$pie" = no && meson_option_add -Db_pie=false
2201   test "$werror" = yes && meson_option_add -Dwerror=true
2202
2203   # QEMU options
2204   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2205   test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2206   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2207   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2208   test "$slirp" != auto && meson_option_add "-Dslirp=$slirp"
2209   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2210   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2211   run_meson() {
2212     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2213   }
2214   eval run_meson $meson_options
2215   if test "$?" -ne 0 ; then
2216       error_exit "meson setup failed"
2217   fi
2218 else
2219   if test -f meson-private/cmd_line.txt; then
2220     # Adjust old command line options whose type was changed
2221     # Avoids having to use "setup --wipe" when Meson is upgraded
2222     perl -i -ne '
2223       s/^gettext = true$/gettext = auto/;
2224       s/^gettext = false$/gettext = disabled/;
2225       /^b_staticpic/ && next;
2226       print;' meson-private/cmd_line.txt
2227   fi
2228 fi
2229
2230 # Save the configure command line for later reuse.
2231 cat <<EOD >config.status
2232 #!/bin/sh
2233 # Generated by configure.
2234 # Run this file to recreate the current configuration.
2235 # Compiler output produced by configure, useful for debugging
2236 # configure, is in config.log if it exists.
2237 EOD
2238
2239 preserve_env() {
2240     envname=$1
2241
2242     eval envval=\$$envname
2243
2244     if test -n "$envval"
2245     then
2246         echo "$envname='$envval'" >> config.status
2247         echo "export $envname" >> config.status
2248     else
2249         echo "unset $envname" >> config.status
2250     fi
2251 }
2252
2253 # Preserve various env variables that influence what
2254 # features/build target configure will detect
2255 preserve_env AR
2256 preserve_env AS
2257 preserve_env CC
2258 preserve_env CFLAGS
2259 preserve_env CXX
2260 preserve_env CXXFLAGS
2261 preserve_env INSTALL
2262 preserve_env LD
2263 preserve_env LDFLAGS
2264 preserve_env LD_LIBRARY_PATH
2265 preserve_env LIBTOOL
2266 preserve_env MAKE
2267 preserve_env NM
2268 preserve_env OBJCOPY
2269 preserve_env PATH
2270 preserve_env PKG_CONFIG
2271 preserve_env PKG_CONFIG_LIBDIR
2272 preserve_env PKG_CONFIG_PATH
2273 preserve_env PYTHON
2274 preserve_env SDL2_CONFIG
2275 preserve_env SMBD
2276 preserve_env STRIP
2277 preserve_env WIDL
2278 preserve_env WINDRES
2279
2280 printf "exec" >>config.status
2281 for i in "$0" "$@"; do
2282   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2283 done
2284 echo ' "$@"' >>config.status
2285 chmod +x config.status
2286
2287 rm -r "$TMPDIR1"