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