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 "$default_feature" = no ; then
 310   capstone="disabled"
 311   slirp="disabled"
 312 else
 313   capstone="auto"
 314   slirp="auto"
 315 fi
 316 fdt="auto"
 317
 318 # 2. Automatically enable/disable other options
 319 tcg="enabled"
 320 cfi="false"
 321
 322 # parse CC options second
 323 for opt do
 324   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 325   case "$opt" in
 326   --cross-prefix=*) cross_prefix="$optarg"
 327                     cross_compile="yes"
 328   ;;
 329   --cc=*) CC="$optarg"
 330   ;;
 331   --cxx=*) CXX="$optarg"
 332   ;;
 333   --cpu=*) cpu="$optarg"
 334   ;;
 335   --extra-cflags=*)
 336     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 337     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 338     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 339     ;;
 340   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 341   ;;
 342   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 343   ;;
 344   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 345   ;;
 346   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 347   ;;
 348   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 349                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 350                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 351   ;;
 352   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 353                 eval "cross_cc_${cc_arch}=\$optarg"
 354                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 355   ;;
 356   esac
 357 done
 358 # OS specific
 359 # Using uname is really, really broken.  Once we have the right set of checks
 360 # we can eliminate its usage altogether.
 361
 362 # Preferred compiler:
 363 #  ${CC} (if set)
 364 #  ${cross_prefix}gcc (if cross-prefix specified)
 365 #  system compiler
 366 if test -z "${CC}${cross_prefix}"; then
 367   cc="$host_cc"
 368 else
 369   cc="${CC-${cross_prefix}gcc}"
 370 fi
 371
 372 if test -z "${CXX}${cross_prefix}"; then
 373   cxx="c++"
 374 else
 375   cxx="${CXX-${cross_prefix}g++}"
 376 fi
 377
 378 ar="${AR-${cross_prefix}ar}"
 379 as="${AS-${cross_prefix}as}"
 380 ccas="${CCAS-$cc}"
 381 cpp="${CPP-$cc -E}"
 382 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 383 ld="${LD-${cross_prefix}ld}"
 384 ranlib="${RANLIB-${cross_prefix}ranlib}"
 385 nm="${NM-${cross_prefix}nm}"
 386 smbd="$SMBD"
 387 strip="${STRIP-${cross_prefix}strip}"
 388 widl="${WIDL-${cross_prefix}widl}"
 389 windres="${WINDRES-${cross_prefix}windres}"
 390 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 391 query_pkg_config() {
 392     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 393 }
 394 pkg_config=query_pkg_config
 395 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 396
 397 # default flags for all hosts
 398 # We use -fwrapv to tell the compiler that we require a C dialect where
 399 # left shift of signed integers is well defined and has the expected
 400 # 2s-complement style results. (Both clang and gcc agree that it
 401 # provides these semantics.)
 402 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 403 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 404 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 405 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 406
 407 QEMU_LDFLAGS=
 408
 409 # Flags that are needed during configure but later taken care of by Meson
 410 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 411 CONFIGURE_LDFLAGS=
 412
 413
 414 check_define() {
 415 cat > $TMPC <<EOF
 416 #if !defined($1)
 417 #error $1 not defined
 418 #endif
 419 int main(void) { return 0; }
 420 EOF
 421   compile_object
 422 }
 423
 424 check_include() {
 425 cat > $TMPC <<EOF
 426 #include <$1>
 427 int main(void) { return 0; }
 428 EOF
 429   compile_object
 430 }
 431
 432 write_c_skeleton() {
 433     cat > $TMPC <<EOF
 434 int main(void) { return 0; }
 435 EOF
 436 }
 437
 438 if check_define __linux__ ; then
 439   targetos=linux
 440 elif check_define _WIN32 ; then
 441   targetos=windows
 442 elif check_define __OpenBSD__ ; then
 443   targetos=openbsd
 444 elif check_define __sun__ ; then
 445   targetos=sunos
 446 elif check_define __HAIKU__ ; then
 447   targetos=haiku
 448 elif check_define __FreeBSD__ ; then
 449   targetos=freebsd
 450 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 451   targetos=gnu/kfreebsd
 452 elif check_define __DragonFly__ ; then
 453   targetos=dragonfly
 454 elif check_define __NetBSD__; then
 455   targetos=netbsd
 456 elif check_define __APPLE__; then
 457   targetos=darwin
 458 else
 459   # This is a fatal error, but don't report it yet, because we
 460   # might be going to just print the --help text, or it might
 461   # be the result of a missing compiler.
 462   targetos=bogus
 463 fi
 464
 465 # OS specific
 466
 467 mingw32="no"
 468 bsd="no"
 469 linux="no"
 470 solaris="no"
 471 case $targetos in
 472 windows)
 473   mingw32="yes"
 474   plugins="no"
 475   pie="no"
 476 ;;
 477 gnu/kfreebsd)
 478   bsd="yes"
 479 ;;
 480 freebsd)
 481   bsd="yes"
 482   make="${MAKE-gmake}"
 483   # needed for kinfo_getvmmap(3) in libutil.h
 484 ;;
 485 dragonfly)
 486   bsd="yes"
 487   make="${MAKE-gmake}"
 488 ;;
 489 netbsd)
 490   bsd="yes"
 491   make="${MAKE-gmake}"
 492 ;;
 493 openbsd)
 494   bsd="yes"
 495   make="${MAKE-gmake}"
 496 ;;
 497 darwin)
 498   bsd="yes"
 499   darwin="yes"
 500   # Disable attempts to use ObjectiveC features in os/object.h since they
 501   # won't work when we're compiling with gcc as a C compiler.
 502   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 503 ;;
 504 sunos)
 505   solaris="yes"
 506   make="${MAKE-gmake}"
 507 # needed for CMSG_ macros in sys/socket.h
 508   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 509 # needed for TIOCWIN* defines in termios.h
 510   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 511   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 512   # Note that this check is broken for cross-compilation: if you're
 513   # cross-compiling to one of these OSes then you'll need to specify
 514   # the correct CPU with the --cpu option.
 515   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 516     cpu="x86_64"
 517   fi
 518 ;;
 519 haiku)
 520   pie="no"
 521   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 522 ;;
 523 linux)
 524   linux="yes"
 525 ;;
 526 esac
 527
 528 if test ! -z "$cpu" ; then
 529   # command line argument
 530   :
 531 elif check_define __i386__ ; then
 532   cpu="i386"
 533 elif check_define __x86_64__ ; then
 534   if check_define __ILP32__ ; then
 535     cpu="x32"
 536   else
 537     cpu="x86_64"
 538   fi
 539 elif check_define __sparc__ ; then
 540   if check_define __arch64__ ; then
 541     cpu="sparc64"
 542   else
 543     cpu="sparc"
 544   fi
 545 elif check_define _ARCH_PPC ; then
 546   if check_define _ARCH_PPC64 ; then
 547     if check_define _LITTLE_ENDIAN ; then
 548       cpu="ppc64le"
 549     else
 550       cpu="ppc64"
 551     fi
 552   else
 553     cpu="ppc"
 554   fi
 555 elif check_define __mips__ ; then
 556   cpu="mips"
 557 elif check_define __s390__ ; then
 558   if check_define __s390x__ ; then
 559     cpu="s390x"
 560   else
 561     cpu="s390"
 562   fi
 563 elif check_define __riscv ; then
 564   cpu="riscv"
 565 elif check_define __arm__ ; then
 566   cpu="arm"
 567 elif check_define __aarch64__ ; then
 568   cpu="aarch64"
 569 elif check_define __loongarch64 ; then
 570   cpu="loongarch64"
 571 else
 572   cpu=$(uname -m)
 573 fi
 574
 575 # Normalise host CPU name, set multilib cflags
 576 # Note that this case should only have supported host CPUs, not guests.
 577 case "$cpu" in
 578   armv*b|armv*l|arm)
 579     cpu="arm" ;;
 580
 581   i386|i486|i586|i686|i86pc|BePC)
 582     cpu="i386"
 583     CPU_CFLAGS="-m32" ;;
 584   x32)
 585     cpu="x86_64"
 586     CPU_CFLAGS="-mx32" ;;
 587   x86_64|amd64)
 588     cpu="x86_64"
 589     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 590     # If we truly care, we should simply detect this case at
 591     # runtime and generate the fallback to serial emulation.
 592     CPU_CFLAGS="-m64 -mcx16" ;;
 593
 594   mips*)
 595     cpu="mips" ;;
 596
 597   ppc)
 598     CPU_CFLAGS="-m32" ;;
 599   ppc64)
 600     CPU_CFLAGS="-m64 -mbig-endian" ;;
 601   ppc64le)
 602     cpu="ppc64"
 603     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 604
 605   s390)
 606     CPU_CFLAGS="-m31" ;;
 607   s390x)
 608     CPU_CFLAGS="-m64" ;;
 609
 610   sparc|sun4[cdmuv])
 611     cpu="sparc"
 612     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 613   sparc64)
 614     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 615 esac
 616
 617 : ${make=${MAKE-make}}
 618
 619 # We prefer python 3.x. A bare 'python' is traditionally
 620 # python 2.x, but some distros have it as python 3.x, so
 621 # we check that too
 622 python=
 623 explicit_python=no
 624 for binary in "${PYTHON-python3}" python
 625 do
 626     if has "$binary"
 627     then
 628         python=$(command -v "$binary")
 629         break
 630     fi
 631 done
 632
 633
 634 # Check for ancillary tools used in testing
 635 genisoimage=
 636 for binary in genisoimage mkisofs
 637 do
 638     if has $binary
 639     then
 640         genisoimage=$(command -v "$binary")
 641         break
 642     fi
 643 done
 644
 645 # Default objcc to clang if available, otherwise use CC
 646 if has clang; then
 647   objcc=clang
 648 else
 649   objcc="$cc"
 650 fi
 651
 652 if test "$mingw32" = "yes" ; then
 653   EXESUF=".exe"
 654   # MinGW needs -mthreads for TLS and macro _MT.
 655   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 656   write_c_skeleton;
 657   prefix="/qemu"
 658   bindir=""
 659   qemu_suffix=""
 660 fi
 661
 662 werror=""
 663
 664 . $source_path/scripts/meson-buildoptions.sh
 665
 666 meson_options=
 667 meson_option_add() {
 668   meson_options="$meson_options $(quote_sh "$1")"
 669 }
 670 meson_option_parse() {
 671   meson_options="$meson_options $(_meson_option_parse "$@")"
 672   if test $? -eq 1; then
 673     echo "ERROR: unknown option $1"
 674     echo "Try '$0 --help' for more information"
 675     exit 1
 676   fi
 677 }
 678
 679 for opt do
 680   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 681   case "$opt" in
 682   --help|-h) show_help=yes
 683   ;;
 684   --version|-V) exec cat $source_path/VERSION
 685   ;;
 686   --prefix=*) prefix="$optarg"
 687   ;;
 688   --cross-prefix=*)
 689   ;;
 690   --cc=*)
 691   ;;
 692   --host-cc=*) host_cc="$optarg"
 693   ;;
 694   --cxx=*)
 695   ;;
 696   --objcc=*) objcc="$optarg"
 697   ;;
 698   --make=*) make="$optarg"
 699   ;;
 700   --install=*)
 701   ;;
 702   --python=*) python="$optarg" ; explicit_python=yes
 703   ;;
 704   --skip-meson) skip_meson=yes
 705   ;;
 706   --meson=*) meson="$optarg"
 707   ;;
 708   --ninja=*) ninja="$optarg"
 709   ;;
 710   --smbd=*) smbd="$optarg"
 711   ;;
 712   --extra-cflags=*)
 713   ;;
 714   --extra-cxxflags=*)
 715   ;;
 716   --extra-objcflags=*)
 717   ;;
 718   --extra-ldflags=*)
 719   ;;
 720   --cross-cc-*)
 721   ;;
 722   --enable-debug-info) meson_option_add -Ddebug=true
 723   ;;
 724   --disable-debug-info) meson_option_add -Ddebug=false
 725   ;;
 726   --enable-modules)
 727       modules="yes"
 728   ;;
 729   --disable-modules)
 730       modules="no"
 731   ;;
 732   --cpu=*)
 733   ;;
 734   --target-list=*) target_list="$optarg"
 735                    if test "$target_list_exclude"; then
 736                        error_exit "Can't mix --target-list with --target-list-exclude"
 737                    fi
 738   ;;
 739   --target-list-exclude=*) target_list_exclude="$optarg"
 740                    if test "$target_list"; then
 741                        error_exit "Can't mix --target-list-exclude with --target-list"
 742                    fi
 743   ;;
 744   --with-default-devices) meson_option_add -Ddefault_devices=true
 745   ;;
 746   --without-default-devices) meson_option_add -Ddefault_devices=false
 747   ;;
 748   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 749   ;;
 750   --with-devices-*) device_arch=${opt#--with-devices-};
 751                     device_arch=${device_arch%%=*}
 752                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 753                     if test -f "$cf"; then
 754                         device_archs="$device_archs $device_arch"
 755                         eval "devices_${device_arch}=\$optarg"
 756                     else
 757                         error_exit "File $cf does not exist"
 758                     fi
 759   ;;
 760   --without-default-features) # processed above
 761   ;;
 762   --static)
 763     static="yes"
 764     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 765   ;;
 766   --bindir=*) bindir="$optarg"
 767   ;;
 768   --with-suffix=*) qemu_suffix="$optarg"
 769   ;;
 770   --host=*|--build=*|\
 771   --disable-dependency-tracking|\
 772   --sbindir=*|--sharedstatedir=*|\
 773   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 774   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 775     # These switches are silently ignored, for compatibility with
 776     # autoconf-generated configure scripts. This allows QEMU's
 777     # configure to be used by RPM and similar macros that set
 778     # lots of directory switches by default.
 779   ;;
 780   --enable-debug-tcg) debug_tcg="yes"
 781   ;;
 782   --disable-debug-tcg) debug_tcg="no"
 783   ;;
 784   --enable-debug)
 785       # Enable debugging options that aren't excessively noisy
 786       debug_tcg="yes"
 787       meson_option_parse --enable-debug-mutex ""
 788       meson_option_add -Doptimization=0
 789       fortify_source="no"
 790   ;;
 791   --enable-sanitizers) sanitizers="yes"
 792   ;;
 793   --disable-sanitizers) sanitizers="no"
 794   ;;
 795   --enable-tsan) tsan="yes"
 796   ;;
 797   --disable-tsan) tsan="no"
 798   ;;
 799   --disable-slirp) slirp="disabled"
 800   ;;
 801   --enable-slirp) slirp="enabled"
 802   ;;
 803   --enable-slirp=git) slirp="internal"
 804   ;;
 805   --enable-slirp=*) slirp="$optarg"
 806   ;;
 807   --disable-tcg) tcg="disabled"
 808                  plugins="no"
 809   ;;
 810   --enable-tcg) tcg="enabled"
 811   ;;
 812   --disable-system) softmmu="no"
 813   ;;
 814   --enable-system) softmmu="yes"
 815   ;;
 816   --disable-user)
 817       linux_user="no" ;
 818       bsd_user="no" ;
 819   ;;
 820   --enable-user) ;;
 821   --disable-linux-user) linux_user="no"
 822   ;;
 823   --enable-linux-user) linux_user="yes"
 824   ;;
 825   --disable-bsd-user) bsd_user="no"
 826   ;;
 827   --enable-bsd-user) bsd_user="yes"
 828   ;;
 829   --enable-pie) pie="yes"
 830   ;;
 831   --disable-pie) pie="no"
 832   ;;
 833   --enable-werror) werror="yes"
 834   ;;
 835   --disable-werror) werror="no"
 836   ;;
 837   --enable-stack-protector) stack_protector="yes"
 838   ;;
 839   --disable-stack-protector) stack_protector="no"
 840   ;;
 841   --enable-safe-stack) safe_stack="yes"
 842   ;;
 843   --disable-safe-stack) safe_stack="no"
 844   ;;
 845   --enable-cfi)
 846       cfi="true";
 847       meson_option_add -Db_lto=true
 848   ;;
 849   --disable-cfi) cfi="false"
 850   ;;
 851   --disable-fdt) fdt="disabled"
 852   ;;
 853   --enable-fdt) fdt="enabled"
 854   ;;
 855   --enable-fdt=git) fdt="internal"
 856   ;;
 857   --enable-fdt=*) fdt="$optarg"
 858   ;;
 859   --with-coroutine=*) coroutine="$optarg"
 860   ;;
 861   --disable-zlib-test)
 862   ;;
 863   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
 864       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
 865   ;;
 866   --enable-vhdx|--disable-vhdx)
 867       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
 868   ;;
 869   --enable-uuid|--disable-uuid)
 870       echo "$0: $opt is obsolete, UUID support is always built" >&2
 871   ;;
 872   --disable-capstone) capstone="disabled"
 873   ;;
 874   --enable-capstone) capstone="enabled"
 875   ;;
 876   --enable-capstone=git) capstone="internal"
 877   ;;
 878   --enable-capstone=*) capstone="$optarg"
 879   ;;
 880   --with-git=*) git="$optarg"
 881   ;;
 882   --with-git-submodules=*)
 883       git_submodules_action="$optarg"
 884   ;;
 885   --enable-plugins) if test "$mingw32" = "yes"; then
 886                         error_exit "TCG plugins not currently supported on Windows platforms"
 887                     else
 888                         plugins="yes"
 889                     fi
 890   ;;
 891   --disable-plugins) plugins="no"
 892   ;;
 893   --enable-containers) use_containers="yes"
 894   ;;
 895   --disable-containers) use_containers="no"
 896   ;;
 897   --gdb=*) gdb_bin="$optarg"
 898   ;;
 899   # backwards compatibility options
 900   --enable-trace-backend=*) meson_option_parse "--enable-trace-backends=$optarg" "$optarg"
 901   ;;
 902   --disable-blobs) meson_option_parse --disable-install-blobs ""
 903   ;;
 904   --enable-tcmalloc) meson_option_parse --enable-malloc=tcmalloc tcmalloc
 905   ;;
 906   --enable-jemalloc) meson_option_parse --enable-malloc=jemalloc jemalloc
 907   ;;
 908   # everything else has the same name in configure and meson
 909   --*) meson_option_parse "$opt" "$optarg"
 910   ;;
 911   esac
 912 done
 913
 914 # test for any invalid configuration combinations
 915 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
 916     error_exit "Can't enable plugins on non-TCG builds"
 917 fi
 918
 919 case $git_submodules_action in
 920     update|validate)
 921         if test ! -e "$source_path/.git"; then
 922             echo "ERROR: cannot $git_submodules_action git submodules without .git"
 923             exit 1
 924         fi
 925     ;;
 926     ignore)
 927         if ! test -f "$source_path/ui/keycodemapdb/README"
 928         then
 929             echo
 930             echo "ERROR: missing GIT submodules"
 931             echo
 932             if test -e "$source_path/.git"; then
 933                 echo "--with-git-submodules=ignore specified but submodules were not"
 934                 echo "checked out.  Please initialize and update submodules."
 935             else
 936                 echo "This is not a GIT checkout but module content appears to"
 937                 echo "be missing. Do not use 'git archive' or GitHub download links"
 938                 echo "to acquire QEMU source archives. Non-GIT builds are only"
 939                 echo "supported with source archives linked from:"
 940                 echo
 941                 echo "  https://www.qemu.org/download/#source"
 942                 echo
 943                 echo "Developers working with GIT can use scripts/archive-source.sh"
 944                 echo "if they need to create valid source archives."
 945             fi
 946             echo
 947             exit 1
 948         fi
 949     ;;
 950     *)
 951         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
 952         exit 1
 953     ;;
 954 esac
 955
 956 if eval test -z "\${cross_cc_$cpu}"; then
 957     eval "cross_cc_${cpu}=\$cc"
 958     cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
 959 fi
 960
 961 default_target_list=""
 962 mak_wilds=""
 963
 964 if [ "$linux_user" != no ]; then
 965     if [ "$targetos" = linux ] && [ -d $source_path/linux-user/include/host/$cpu ]; then
 966         linux_user=yes
 967     elif [ "$linux_user" = yes ]; then
 968         error_exit "linux-user not supported on this architecture"
 969     fi
 970 fi
 971 if [ "$bsd_user" != no ]; then
 972     if [ "$bsd_user" = "" ]; then
 973         test $targetos = freebsd && bsd_user=yes
 974     fi
 975     if [ "$bsd_user" = yes ] && ! [ -d $source_path/bsd-user/$targetos ]; then
 976         error_exit "bsd-user not supported on this host OS"
 977     fi
 978 fi
 979 if [ "$softmmu" = "yes" ]; then
 980     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 981 fi
 982 if [ "$linux_user" = "yes" ]; then
 983     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 984 fi
 985 if [ "$bsd_user" = "yes" ]; then
 986     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 987 fi
 988
 989 for config in $mak_wilds; do
 990     target="$(basename "$config" .mak)"
 991     if echo "$target_list_exclude" | grep -vq "$target"; then
 992         default_target_list="${default_target_list} $target"
 993     fi
 994 done
 995
 996 if test x"$show_help" = x"yes" ; then
 997 cat << EOF
 998
 999 Usage: configure [options]
1000 Options: [defaults in brackets after descriptions]
1001
1002 Standard options:
1003   --help                   print this message
1004   --prefix=PREFIX          install in PREFIX [$prefix]
1005   --target-list=LIST       set target list (default: build all)
1006 $(echo Available targets: $default_target_list | \
1007   fold -s -w 53 | sed -e 's/^/                           /')
1008   --target-list-exclude=LIST exclude a set of targets from the default target-list
1009
1010 Advanced options (experts only):
1011   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1012   --cc=CC                  use C compiler CC [$cc]
1013   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1014                            build time
1015   --cxx=CXX                use C++ compiler CXX [$cxx]
1016   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1017   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
1018   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
1019   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
1020   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1021   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1022   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
1023   --make=MAKE              use specified make [$make]
1024   --python=PYTHON          use specified python [$python]
1025   --meson=MESON            use specified meson [$meson]
1026   --ninja=NINJA            use specified ninja [$ninja]
1027   --smbd=SMBD              use specified smbd [$smbd]
1028   --with-git=GIT           use specified git [$git]
1029   --with-git-submodules=update   update git submodules (default if .git dir exists)
1030   --with-git-submodules=validate fail if git submodules are not up to date
1031   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1032   --static                 enable static build [$static]
1033   --bindir=PATH            install binaries in PATH
1034   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1035   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1036   --without-default-features default all --enable-* options to "disabled"
1037   --without-default-devices  do not include any device that is not needed to
1038                            start the emulator (only use if you are including
1039                            desired devices in configs/devices/)
1040   --with-devices-ARCH=NAME override default configs/devices
1041   --enable-debug           enable common debug build options
1042   --enable-sanitizers      enable default sanitizers
1043   --enable-tsan            enable thread sanitizer
1044   --disable-werror         disable compilation abort on warning
1045   --disable-stack-protector disable compiler-provided stack protection
1046   --audio-drv-list=LIST    set audio drivers to try if -audiodev is not used
1047   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1048   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1049                            Default:trace-<pid>
1050   --cpu=CPU                Build for host CPU [$cpu]
1051   --with-coroutine=BACKEND coroutine backend. Supported options:
1052                            ucontext, sigaltstack, windows
1053   --enable-plugins
1054                            enable plugins via shared library loading
1055   --disable-containers     don't use containers for cross-building
1056   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1057 EOF
1058   meson_options_help
1059 cat << EOF
1060   system          all system emulation targets
1061   user            supported user emulation targets
1062   linux-user      all linux usermode emulation targets
1063   bsd-user        all BSD usermode emulation targets
1064   pie             Position Independent Executables
1065   modules         modules support (non-Windows)
1066   debug-tcg       TCG debugging (default is disabled)
1067   debug-info      debugging information
1068   safe-stack      SafeStack Stack Smash Protection. Depends on
1069                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1070
1071 NOTE: The object files are built at the place where configure is launched
1072 EOF
1073 exit 0
1074 fi
1075
1076 # Remove old dependency files to make sure that they get properly regenerated
1077 rm -f */config-devices.mak.d
1078
1079 if test -z "$python"
1080 then
1081     error_exit "Python not found. Use --python=/path/to/python"
1082 fi
1083 if ! has "$make"
1084 then
1085     error_exit "GNU make ($make) not found"
1086 fi
1087
1088 # Note that if the Python conditional here evaluates True we will exit
1089 # with status 1 which is a shell 'false' value.
1090 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1091   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1092       "Use --python=/path/to/python to specify a supported Python."
1093 fi
1094
1095 # Preserve python version since some functionality is dependent on it
1096 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)
1097
1098 # Suppress writing compiled files
1099 python="$python -B"
1100
1101 if test -z "$meson"; then
1102     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.59.3; then
1103         meson=meson
1104     elif test $git_submodules_action != 'ignore' ; then
1105         meson=git
1106     elif test -e "${source_path}/meson/meson.py" ; then
1107         meson=internal
1108     else
1109         if test "$explicit_python" = yes; then
1110             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1111         else
1112             error_exit "Meson not found.  Use --meson=/path/to/meson"
1113         fi
1114     fi
1115 else
1116     # Meson uses its own Python interpreter to invoke other Python scripts,
1117     # but the user wants to use the one they specified with --python.
1118     #
1119     # We do not want to override the distro Python interpreter (and sometimes
1120     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1121     # just require --meson=git|internal together with --python.
1122     if test "$explicit_python" = yes; then
1123         case "$meson" in
1124             git | internal) ;;
1125             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1126         esac
1127     fi
1128 fi
1129
1130 if test "$meson" = git; then
1131     git_submodules="${git_submodules} meson"
1132 fi
1133
1134 case "$meson" in
1135     git | internal)
1136         meson="$python ${source_path}/meson/meson.py"
1137         ;;
1138     *) meson=$(command -v "$meson") ;;
1139 esac
1140
1141 # Probe for ninja
1142
1143 if test -z "$ninja"; then
1144     for c in ninja ninja-build samu; do
1145         if has $c; then
1146             ninja=$(command -v "$c")
1147             break
1148         fi
1149     done
1150     if test -z "$ninja"; then
1151       error_exit "Cannot find Ninja"
1152     fi
1153 fi
1154
1155 # Check that the C compiler works. Doing this here before testing
1156 # the host CPU ensures that we had a valid CC to autodetect the
1157 # $cpu var (and we should bail right here if that's not the case).
1158 # It also allows the help message to be printed without a CC.
1159 write_c_skeleton;
1160 if compile_object ; then
1161   : C compiler works ok
1162 else
1163     error_exit "\"$cc\" either does not exist or does not work"
1164 fi
1165 if ! compile_prog ; then
1166     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1167 fi
1168
1169 # Consult white-list to determine whether to enable werror
1170 # by default.  Only enable by default for git builds
1171 if test -z "$werror" ; then
1172     if test "$git_submodules_action" != "ignore" && \
1173         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1174         werror="yes"
1175     else
1176         werror="no"
1177     fi
1178 fi
1179
1180 if test "$targetos" = "bogus"; then
1181     # Now that we know that we're not printing the help and that
1182     # the compiler works (so the results of the check_defines we used
1183     # to identify the OS are reliable), if we didn't recognize the
1184     # host OS we should stop now.
1185     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1186 fi
1187
1188 # Check whether the compiler matches our minimum requirements:
1189 cat > $TMPC << EOF
1190 #if defined(__clang_major__) && defined(__clang_minor__)
1191 # ifdef __apple_build_version__
1192 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1193 #   error You need at least XCode Clang v10.0 to compile QEMU
1194 #  endif
1195 # else
1196 #  if __clang_major__ < 6 || (__clang_major__ == 6 && __clang_minor__ < 0)
1197 #   error You need at least Clang v6.0 to compile QEMU
1198 #  endif
1199 # endif
1200 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1201 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1202 #  error You need at least GCC v7.4.0 to compile QEMU
1203 # endif
1204 #else
1205 # error You either need GCC or Clang to compiler QEMU
1206 #endif
1207 int main (void) { return 0; }
1208 EOF
1209 if ! compile_prog "" "" ; then
1210     error_exit "You need at least GCC v7.4 or Clang v6.0 (or XCode Clang v10.0)"
1211 fi
1212
1213 # Accumulate -Wfoo and -Wno-bar separately.
1214 # We will list all of the enable flags first, and the disable flags second.
1215 # Note that we do not add -Werror, because that would enable it for all
1216 # configure tests. If a configure test failed due to -Werror this would
1217 # just silently disable some features, so it's too error prone.
1218
1219 warn_flags=
1220 add_to warn_flags -Wold-style-declaration
1221 add_to warn_flags -Wold-style-definition
1222 add_to warn_flags -Wtype-limits
1223 add_to warn_flags -Wformat-security
1224 add_to warn_flags -Wformat-y2k
1225 add_to warn_flags -Winit-self
1226 add_to warn_flags -Wignored-qualifiers
1227 add_to warn_flags -Wempty-body
1228 add_to warn_flags -Wnested-externs
1229 add_to warn_flags -Wendif-labels
1230 add_to warn_flags -Wexpansion-to-defined
1231 add_to warn_flags -Wimplicit-fallthrough=2
1232
1233 nowarn_flags=
1234 add_to nowarn_flags -Wno-initializer-overrides
1235 add_to nowarn_flags -Wno-missing-include-dirs
1236 add_to nowarn_flags -Wno-shift-negative-value
1237 add_to nowarn_flags -Wno-string-plus-int
1238 add_to nowarn_flags -Wno-typedef-redefinition
1239 add_to nowarn_flags -Wno-tautological-type-limit-compare
1240 add_to nowarn_flags -Wno-psabi
1241
1242 gcc_flags="$warn_flags $nowarn_flags"
1243
1244 cc_has_warning_flag() {
1245     write_c_skeleton;
1246
1247     # Use the positive sense of the flag when testing for -Wno-wombat
1248     # support (gcc will happily accept the -Wno- form of unknown
1249     # warning options).
1250     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1251     compile_prog "-Werror $optflag" ""
1252 }
1253
1254 objcc_has_warning_flag() {
1255     cat > $TMPM <<EOF
1256 int main(void) { return 0; }
1257 EOF
1258
1259     # Use the positive sense of the flag when testing for -Wno-wombat
1260     # support (gcc will happily accept the -Wno- form of unknown
1261     # warning options).
1262     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1263     do_objc -Werror $optflag \
1264       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1265       -o $TMPE $TMPM $QEMU_LDFLAGS
1266 }
1267
1268 for flag in $gcc_flags; do
1269     if cc_has_warning_flag $flag ; then
1270         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1271     fi
1272     if objcc_has_warning_flag $flag ; then
1273         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1274     fi
1275 done
1276
1277 if test "$stack_protector" != "no"; then
1278   cat > $TMPC << EOF
1279 int main(int argc, char *argv[])
1280 {
1281     char arr[64], *p = arr, *c = argv[0];
1282     while (*c) {
1283         *p++ = *c++;
1284     }
1285     return 0;
1286 }
1287 EOF
1288   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1289   sp_on=0
1290   for flag in $gcc_flags; do
1291     # We need to check both a compile and a link, since some compiler
1292     # setups fail only on a .c->.o compile and some only at link time
1293     if compile_object "-Werror $flag" &&
1294        compile_prog "-Werror $flag" ""; then
1295       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1296       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1297       sp_on=1
1298       break
1299     fi
1300   done
1301   if test "$stack_protector" = yes; then
1302     if test $sp_on = 0; then
1303       error_exit "Stack protector not supported"
1304     fi
1305   fi
1306 fi
1307
1308 # Disable -Wmissing-braces on older compilers that warn even for
1309 # the "universal" C zero initializer {0}.
1310 cat > $TMPC << EOF
1311 struct {
1312   int a[2];
1313 } x = {0};
1314 EOF
1315 if compile_object "-Werror" "" ; then
1316   :
1317 else
1318   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
1319 fi
1320
1321 # Our module code doesn't support Windows
1322 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1323   error_exit "Modules are not available for Windows"
1324 fi
1325
1326 # Static linking is not possible with plugins, modules or PIE
1327 if test "$static" = "yes" ; then
1328   if test "$modules" = "yes" ; then
1329     error_exit "static and modules are mutually incompatible"
1330   fi
1331   if test "$plugins" = "yes"; then
1332     error_exit "static and plugins are mutually incompatible"
1333   else
1334     plugins="no"
1335   fi
1336 fi
1337 test "$plugins" = "" && plugins=yes
1338
1339 cat > $TMPC << EOF
1340
1341 #ifdef __linux__
1342 #  define THREAD __thread
1343 #else
1344 #  define THREAD
1345 #endif
1346 static THREAD int tls_var;
1347 int main(void) { return tls_var; }
1348 EOF
1349
1350 # Check we support -fno-pie and -no-pie first; we will need the former for
1351 # building ROMs, and both for everything if --disable-pie is passed.
1352 if compile_prog "-Werror -fno-pie" "-no-pie"; then
1353   CFLAGS_NOPIE="-fno-pie"
1354   LDFLAGS_NOPIE="-no-pie"
1355 fi
1356
1357 if test "$static" = "yes"; then
1358   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1359     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1360     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
1361     pie="yes"
1362   elif test "$pie" = "yes"; then
1363     error_exit "-static-pie not available due to missing toolchain support"
1364   else
1365     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
1366     pie="no"
1367   fi
1368 elif test "$pie" = "no"; then
1369   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
1370   CONFIGURE_LDFLAGS="$LDFLAGS_NOPIE $CONFIGURE_LDFLAGS"
1371 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1372   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1373   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1374   pie="yes"
1375 elif test "$pie" = "yes"; then
1376   error_exit "PIE not available due to missing toolchain support"
1377 else
1378   echo "Disabling PIE due to missing toolchain support"
1379   pie="no"
1380 fi
1381
1382 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
1383 # The combination is known as "full relro", because .got.plt is read-only too.
1384 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
1385   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
1386 fi
1387
1388 ##########################################
1389 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1390 # use i686 as default anyway, but for those that don't, an explicit
1391 # specification is necessary
1392
1393 if test "$cpu" = "i386"; then
1394   cat > $TMPC << EOF
1395 static int sfaa(int *ptr)
1396 {
1397   return __sync_fetch_and_and(ptr, 0);
1398 }
1399
1400 int main(void)
1401 {
1402   int val = 42;
1403   val = __sync_val_compare_and_swap(&val, 0, 1);
1404   sfaa(&val);
1405   return val;
1406 }
1407 EOF
1408   if ! compile_prog "" "" ; then
1409     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1410   fi
1411 fi
1412
1413 if test "$tcg" = "enabled"; then
1414     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1415     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1416 fi
1417
1418 if test -z "${target_list+xxx}" ; then
1419     default_targets=yes
1420     for target in $default_target_list; do
1421         target_list="$target_list $target"
1422     done
1423     target_list="${target_list# }"
1424 else
1425     default_targets=no
1426     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1427     for target in $target_list; do
1428         # Check that we recognised the target name; this allows a more
1429         # friendly error message than if we let it fall through.
1430         case " $default_target_list " in
1431             *" $target "*)
1432                 ;;
1433             *)
1434                 error_exit "Unknown target name '$target'"
1435                 ;;
1436         esac
1437     done
1438 fi
1439
1440 # see if system emulation was really requested
1441 case " $target_list " in
1442   *"-softmmu "*) softmmu=yes
1443   ;;
1444   *) softmmu=no
1445   ;;
1446 esac
1447
1448 feature_not_found() {
1449   feature=$1
1450   remedy=$2
1451
1452   error_exit "User requested feature $feature" \
1453       "configure was not able to find it." \
1454       "$remedy"
1455 }
1456
1457 # ---
1458 # big/little endian test
1459 cat > $TMPC << EOF
1460 #include <stdio.h>
1461 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
1462 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
1463 int main(int argc, char *argv[])
1464 {
1465     return printf("%s %s\n", (char *)big_endian, (char *)little_endian);
1466 }
1467 EOF
1468
1469 if compile_prog ; then
1470     if strings -a $TMPE | grep -q BiGeNdIaN ; then
1471         bigendian="yes"
1472     elif strings -a $TMPE | grep -q LiTtLeEnDiAn ; then
1473         bigendian="no"
1474     else
1475         echo big/little test failed
1476         exit 1
1477     fi
1478 else
1479     echo big/little test failed
1480     exit 1
1481 fi
1482
1483 ##########################################
1484 # pkg-config probe
1485
1486 if ! has "$pkg_config_exe"; then
1487   error_exit "pkg-config binary '$pkg_config_exe' not found"
1488 fi
1489
1490 ##########################################
1491 # glib support probe
1492
1493 glib_req_ver=2.56
1494 glib_modules=gthread-2.0
1495 if test "$modules" = yes; then
1496     glib_modules="$glib_modules gmodule-export-2.0"
1497 elif test "$plugins" = "yes"; then
1498     glib_modules="$glib_modules gmodule-no-export-2.0"
1499 fi
1500
1501 for i in $glib_modules; do
1502     if $pkg_config --atleast-version=$glib_req_ver $i; then
1503         glib_cflags=$($pkg_config --cflags $i)
1504         glib_libs=$($pkg_config --libs $i)
1505     else
1506         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
1507     fi
1508 done
1509
1510 # This workaround is required due to a bug in pkg-config file for glib as it
1511 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
1512
1513 if test "$static" = yes && test "$mingw32" = yes; then
1514     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
1515 fi
1516
1517 # Sanity check that the current size_t matches the
1518 # size that glib thinks it should be. This catches
1519 # problems on multi-arch where people try to build
1520 # 32-bit QEMU while pointing at 64-bit glib headers
1521 cat > $TMPC <<EOF
1522 #include <glib.h>
1523 #include <unistd.h>
1524
1525 #define QEMU_BUILD_BUG_ON(x) \
1526   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
1527
1528 int main(void) {
1529    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
1530    return 0;
1531 }
1532 EOF
1533
1534 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
1535     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
1536                "You probably need to set PKG_CONFIG_LIBDIR"\
1537                "to point to the right pkg-config files for your"\
1538                "build target"
1539 fi
1540
1541 # Silence clang warnings triggered by glib < 2.57.2
1542 cat > $TMPC << EOF
1543 #include <glib.h>
1544 typedef struct Foo {
1545     int i;
1546 } Foo;
1547 static void foo_free(Foo *f)
1548 {
1549     g_free(f);
1550 }
1551 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
1552 int main(void) { return 0; }
1553 EOF
1554 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
1555     if cc_has_warning_flag "-Wno-unused-function"; then
1556         glib_cflags="$glib_cflags -Wno-unused-function"
1557         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
1558     fi
1559 fi
1560
1561 ##########################################
1562 # fdt probe
1563
1564 case "$fdt" in
1565   auto | enabled | internal)
1566     # Simpler to always update submodule, even if not needed.
1567     git_submodules="${git_submodules} dtc"
1568     ;;
1569 esac
1570
1571 ##########################################
1572 # capstone
1573
1574 case "$capstone" in
1575   auto | enabled | internal)
1576     # Simpler to always update submodule, even if not needed.
1577     git_submodules="${git_submodules} capstone"
1578     ;;
1579 esac
1580
1581 ##########################################
1582 # check and set a backend for coroutine
1583
1584 # We prefer ucontext, but it's not always possible. The fallback
1585 # is sigcontext. On Windows the only valid backend is the Windows
1586 # specific one.
1587
1588 ucontext_works=no
1589 if test "$darwin" != "yes"; then
1590   cat > $TMPC << EOF
1591 #include <ucontext.h>
1592 #ifdef __stub_makecontext
1593 #error Ignoring glibc stub makecontext which will always fail
1594 #endif
1595 int main(void) { makecontext(0, 0, 0); return 0; }
1596 EOF
1597   if compile_prog "" "" ; then
1598     ucontext_works=yes
1599   fi
1600 fi
1601
1602 if test "$coroutine" = ""; then
1603   if test "$mingw32" = "yes"; then
1604     coroutine=win32
1605   elif test "$ucontext_works" = "yes"; then
1606     coroutine=ucontext
1607   else
1608     coroutine=sigaltstack
1609   fi
1610 else
1611   case $coroutine in
1612   windows)
1613     if test "$mingw32" != "yes"; then
1614       error_exit "'windows' coroutine backend only valid for Windows"
1615     fi
1616     # Unfortunately the user visible backend name doesn't match the
1617     # coroutine-*.c filename for this case, so we have to adjust it here.
1618     coroutine=win32
1619     ;;
1620   ucontext)
1621     if test "$ucontext_works" != "yes"; then
1622       feature_not_found "ucontext"
1623     fi
1624     ;;
1625   sigaltstack)
1626     if test "$mingw32" = "yes"; then
1627       error_exit "only the 'windows' coroutine backend is valid for Windows"
1628     fi
1629     ;;
1630   *)
1631     error_exit "unknown coroutine backend $coroutine"
1632     ;;
1633   esac
1634 fi
1635
1636 ##################################################
1637 # SafeStack
1638
1639
1640 if test "$safe_stack" = "yes"; then
1641 cat > $TMPC << EOF
1642 int main(int argc, char *argv[])
1643 {
1644 #if ! __has_feature(safe_stack)
1645 #error SafeStack Disabled
1646 #endif
1647     return 0;
1648 }
1649 EOF
1650   flag="-fsanitize=safe-stack"
1651   # Check that safe-stack is supported and enabled.
1652   if compile_prog "-Werror $flag" "$flag"; then
1653     # Flag needed both at compilation and at linking
1654     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1655     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1656   else
1657     error_exit "SafeStack not supported by your compiler"
1658   fi
1659   if test "$coroutine" != "ucontext"; then
1660     error_exit "SafeStack is only supported by the coroutine backend ucontext"
1661   fi
1662 else
1663 cat > $TMPC << EOF
1664 int main(int argc, char *argv[])
1665 {
1666 #if defined(__has_feature)
1667 #if __has_feature(safe_stack)
1668 #error SafeStack Enabled
1669 #endif
1670 #endif
1671     return 0;
1672 }
1673 EOF
1674 if test "$safe_stack" = "no"; then
1675   # Make sure that safe-stack is disabled
1676   if ! compile_prog "-Werror" ""; then
1677     # SafeStack was already enabled, try to explicitly remove the feature
1678     flag="-fno-sanitize=safe-stack"
1679     if ! compile_prog "-Werror $flag" "$flag"; then
1680       error_exit "Configure cannot disable SafeStack"
1681     fi
1682     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1683     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1684   fi
1685 else # "$safe_stack" = ""
1686   # Set safe_stack to yes or no based on pre-existing flags
1687   if compile_prog "-Werror" ""; then
1688     safe_stack="no"
1689   else
1690     safe_stack="yes"
1691     if test "$coroutine" != "ucontext"; then
1692       error_exit "SafeStack is only supported by the coroutine backend ucontext"
1693     fi
1694   fi
1695 fi
1696 fi
1697
1698 ########################################
1699 # check if ccache is interfering with
1700 # semantic analysis of macros
1701
1702 unset CCACHE_CPP2
1703 ccache_cpp2=no
1704 cat > $TMPC << EOF
1705 static const int Z = 1;
1706 #define fn() ({ Z; })
1707 #define TAUT(X) ((X) == Z)
1708 #define PAREN(X, Y) (X == Y)
1709 #define ID(X) (X)
1710 int main(int argc, char *argv[])
1711 {
1712     int x = 0, y = 0;
1713     x = ID(x);
1714     x = fn();
1715     fn();
1716     if (PAREN(x, y)) return 0;
1717     if (TAUT(Z)) return 0;
1718     return 0;
1719 }
1720 EOF
1721
1722 if ! compile_object "-Werror"; then
1723     ccache_cpp2=yes
1724 fi
1725
1726 #################################################
1727 # clang does not support glibc + FORTIFY_SOURCE.
1728
1729 if test "$fortify_source" != "no"; then
1730   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
1731     fortify_source="no";
1732   elif test -n "$cxx" && has $cxx &&
1733        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
1734     fortify_source="no";
1735   else
1736     fortify_source="yes"
1737   fi
1738 fi
1739
1740 ##########################################
1741 # checks for sanitizers
1742
1743 have_asan=no
1744 have_ubsan=no
1745 have_asan_iface_h=no
1746 have_asan_iface_fiber=no
1747
1748 if test "$sanitizers" = "yes" ; then
1749   write_c_skeleton
1750   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
1751       have_asan=yes
1752   fi
1753
1754   # we could use a simple skeleton for flags checks, but this also
1755   # detect the static linking issue of ubsan, see also:
1756   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
1757   cat > $TMPC << EOF
1758 #include <stdlib.h>
1759 int main(void) {
1760     void *tmp = malloc(10);
1761     if (tmp != NULL) {
1762         return *(int *)(tmp + 2);
1763     }
1764     return 1;
1765 }
1766 EOF
1767   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
1768       have_ubsan=yes
1769   fi
1770
1771   if check_include "sanitizer/asan_interface.h" ; then
1772       have_asan_iface_h=yes
1773   fi
1774
1775   cat > $TMPC << EOF
1776 #include <sanitizer/asan_interface.h>
1777 int main(void) {
1778   __sanitizer_start_switch_fiber(0, 0, 0);
1779   return 0;
1780 }
1781 EOF
1782   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
1783       have_asan_iface_fiber=yes
1784   fi
1785 fi
1786
1787 # Thread sanitizer is, for now, much noisier than the other sanitizers;
1788 # keep it separate until that is not the case.
1789 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
1790   error_exit "TSAN is not supported with other sanitiziers."
1791 fi
1792 have_tsan=no
1793 have_tsan_iface_fiber=no
1794 if test "$tsan" = "yes" ; then
1795   write_c_skeleton
1796   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1797       have_tsan=yes
1798   fi
1799   cat > $TMPC << EOF
1800 #include <sanitizer/tsan_interface.h>
1801 int main(void) {
1802   __tsan_create_fiber(0);
1803   return 0;
1804 }
1805 EOF
1806   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1807       have_tsan_iface_fiber=yes
1808   fi
1809 fi
1810
1811 ##########################################
1812 # check for slirp
1813
1814 case "$slirp" in
1815   auto | enabled | internal)
1816     # Simpler to always update submodule, even if not needed.
1817     git_submodules="${git_submodules} slirp"
1818     ;;
1819 esac
1820
1821 ##########################################
1822 # End of CC checks
1823 # After here, no more $cc or $ld runs
1824
1825 write_c_skeleton
1826
1827 if test "$fortify_source" = "yes" ; then
1828   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
1829 fi
1830
1831 case "$ARCH" in
1832 alpha)
1833   # Ensure there's only a single GP
1834   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
1835 ;;
1836 esac
1837
1838 if test "$have_asan" = "yes"; then
1839   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
1840   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
1841   if test "$have_asan_iface_h" = "no" ; then
1842       echo "ASAN build enabled, but ASAN header missing." \
1843            "Without code annotation, the report may be inferior."
1844   elif test "$have_asan_iface_fiber" = "no" ; then
1845       echo "ASAN build enabled, but ASAN header is too old." \
1846            "Without code annotation, the report may be inferior."
1847   fi
1848 fi
1849 if test "$have_tsan" = "yes" ; then
1850   if test "$have_tsan_iface_fiber" = "yes" ; then
1851     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
1852     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
1853   else
1854     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
1855   fi
1856 elif test "$tsan" = "yes" ; then
1857   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
1858 fi
1859 if test "$have_ubsan" = "yes"; then
1860   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
1861   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
1862 fi
1863
1864 ##########################################
1865
1866 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
1867 if test "$solaris" = "no" && test "$tsan" = "no"; then
1868     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
1869         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
1870     fi
1871 fi
1872
1873 # Guest agent Windows MSI package
1874
1875 if test "$QEMU_GA_MANUFACTURER" = ""; then
1876   QEMU_GA_MANUFACTURER=QEMU
1877 fi
1878 if test "$QEMU_GA_DISTRO" = ""; then
1879   QEMU_GA_DISTRO=Linux
1880 fi
1881 if test "$QEMU_GA_VERSION" = ""; then
1882     QEMU_GA_VERSION=$(cat $source_path/VERSION)
1883 fi
1884
1885 QEMU_GA_MSI_MINGW_BIN_PATH="$($pkg_config --variable=prefix glib-2.0)/bin"
1886
1887 # Mac OS X ships with a broken assembler
1888 roms=
1889 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
1890         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
1891         test "$targetos" != "haiku" && test "$softmmu" = yes ; then
1892     # Different host OS linkers have different ideas about the name of the ELF
1893     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
1894     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
1895     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
1896         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
1897             ld_i386_emulation="$emu"
1898             roms="optionrom"
1899             break
1900         fi
1901     done
1902 fi
1903
1904 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
1905 # or -march=z10 (which is the lowest architecture level that Clang supports)
1906 if test "$cpu" = "s390x" ; then
1907   write_c_skeleton
1908   compile_prog "-march=z900" ""
1909   has_z900=$?
1910   if [ $has_z900 = 0 ] || compile_object "-march=z10 -msoft-float -Werror"; then
1911     if [ $has_z900 != 0 ]; then
1912       echo "WARNING: Your compiler does not support the z900!"
1913       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
1914     fi
1915     roms="$roms s390-ccw"
1916     # SLOF is required for building the s390-ccw firmware on s390x,
1917     # since it is using the libnet code from SLOF for network booting.
1918     git_submodules="${git_submodules} roms/SLOF"
1919   fi
1920 fi
1921
1922 # Check that the C++ compiler exists and works with the C compiler.
1923 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
1924 if has $cxx; then
1925     cat > $TMPC <<EOF
1926 int c_function(void);
1927 int main(void) { return c_function(); }
1928 EOF
1929
1930     compile_object
1931
1932     cat > $TMPCXX <<EOF
1933 extern "C" {
1934    int c_function(void);
1935 }
1936 int c_function(void) { return 42; }
1937 EOF
1938
1939     update_cxxflags
1940
1941     if do_cxx $CXXFLAGS $EXTRA_CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
1942         # C++ compiler $cxx works ok with C compiler $cc
1943         :
1944     else
1945         echo "C++ compiler $cxx does not work with C compiler $cc"
1946         echo "Disabling C++ specific optional code"
1947         cxx=
1948     fi
1949 else
1950     echo "No C++ compiler available; disabling C++ specific optional code"
1951     cxx=
1952 fi
1953
1954 if !(GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
1955     exit 1
1956 fi
1957
1958 config_host_mak="config-host.mak"
1959
1960 echo "# Automatically generated by configure - do not modify" > $config_host_mak
1961 echo >> $config_host_mak
1962
1963 echo all: >> $config_host_mak
1964 echo "GIT=$git" >> $config_host_mak
1965 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
1966 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
1967
1968 if test "$debug_tcg" = "yes" ; then
1969   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
1970 fi
1971 if test "$mingw32" = "yes" ; then
1972   echo "CONFIG_WIN32=y" >> $config_host_mak
1973   echo "QEMU_GA_MSI_MINGW_BIN_PATH=${QEMU_GA_MSI_MINGW_BIN_PATH}" >> $config_host_mak
1974   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
1975   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
1976   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
1977 else
1978   echo "CONFIG_POSIX=y" >> $config_host_mak
1979 fi
1980
1981 if test "$linux" = "yes" ; then
1982   echo "CONFIG_LINUX=y" >> $config_host_mak
1983 fi
1984
1985 if test "$darwin" = "yes" ; then
1986   echo "CONFIG_DARWIN=y" >> $config_host_mak
1987 fi
1988
1989 if test "$solaris" = "yes" ; then
1990   echo "CONFIG_SOLARIS=y" >> $config_host_mak
1991 fi
1992 if test "$static" = "yes" ; then
1993   echo "CONFIG_STATIC=y" >> $config_host_mak
1994 fi
1995 qemu_version=$(head $source_path/VERSION)
1996 echo "SRC_PATH=$source_path" >> $config_host_mak
1997 echo "TARGET_DIRS=$target_list" >> $config_host_mak
1998 if test "$modules" = "yes"; then
1999   echo "CONFIG_MODULES=y" >> $config_host_mak
2000 fi
2001
2002 # XXX: suppress that
2003 if [ "$bsd" = "yes" ] ; then
2004   echo "CONFIG_BSD=y" >> $config_host_mak
2005 fi
2006
2007 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2008
2009 if test "$have_asan_iface_fiber" = "yes" ; then
2010     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2011 fi
2012
2013 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2014     echo "CONFIG_TSAN=y" >> $config_host_mak
2015 fi
2016
2017 if test "$plugins" = "yes" ; then
2018     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2019 fi
2020
2021 if test -n "$gdb_bin"; then
2022     gdb_version=$($gdb_bin --version | head -n 1)
2023     if version_ge ${gdb_version##* } 9.1; then
2024         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2025     fi
2026 fi
2027
2028 echo "ROMS=$roms" >> $config_host_mak
2029 echo "MAKE=$make" >> $config_host_mak
2030 echo "PYTHON=$python" >> $config_host_mak
2031 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2032 echo "MESON=$meson" >> $config_host_mak
2033 echo "NINJA=$ninja" >> $config_host_mak
2034 echo "CC=$cc" >> $config_host_mak
2035 echo "AR=$ar" >> $config_host_mak
2036 echo "AS=$as" >> $config_host_mak
2037 echo "CCAS=$ccas" >> $config_host_mak
2038 echo "CPP=$cpp" >> $config_host_mak
2039 echo "OBJCOPY=$objcopy" >> $config_host_mak
2040 echo "LD=$ld" >> $config_host_mak
2041 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
2042 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2043 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
2044 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2045 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2046 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2047 echo "GLIB_VERSION=$(pkg-config --modversion glib-2.0)" >> $config_host_mak
2048 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2049 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
2050 echo "STRIP=$strip" >> $config_host_mak
2051 echo "EXESUF=$EXESUF" >> $config_host_mak
2052
2053 # use included Linux headers
2054 if test "$linux" = "yes" ; then
2055   mkdir -p linux-headers
2056   case "$cpu" in
2057   i386|x86_64)
2058     linux_arch=x86
2059     ;;
2060   ppc|ppc64)
2061     linux_arch=powerpc
2062     ;;
2063   s390x)
2064     linux_arch=s390
2065     ;;
2066   aarch64)
2067     linux_arch=arm64
2068     ;;
2069   loongarch*)
2070     linux_arch=loongarch
2071     ;;
2072   mips64)
2073     linux_arch=mips
2074     ;;
2075   *)
2076     # For most CPUs the kernel architecture name and QEMU CPU name match.
2077     linux_arch="$cpu"
2078     ;;
2079   esac
2080     # For non-KVM architectures we will not have asm headers
2081     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2082       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2083     fi
2084 fi
2085
2086 for target in $target_list; do
2087     target_dir="$target"
2088     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2089     mkdir -p $target_dir
2090     case $target in
2091         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2092         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2093     esac
2094 done
2095
2096 if test "$default_targets" = "yes"; then
2097   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2098 fi
2099
2100 if test "$ccache_cpp2" = "yes"; then
2101   echo "export CCACHE_CPP2=y" >> $config_host_mak
2102 fi
2103
2104 if test "$safe_stack" = "yes"; then
2105   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
2106 fi
2107
2108 # If we're using a separate build tree, set it up now.
2109 # LINKS are things to symlink back into the source tree
2110 # (these can be both files and directories).
2111 # Caution: do not add files or directories here using wildcards. This
2112 # will result in problems later if a new file matching the wildcard is
2113 # added to the source tree -- nothing will cause configure to be rerun
2114 # so the build tree will be missing the link back to the new file, and
2115 # tests might fail. Prefer to keep the relevant files in their own
2116 # directory and symlink the directory instead.
2117 LINKS="Makefile"
2118 LINKS="$LINKS tests/tcg/Makefile.target"
2119 LINKS="$LINKS pc-bios/optionrom/Makefile"
2120 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
2121 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
2122 LINKS="$LINKS tests/avocado tests/data"
2123 LINKS="$LINKS tests/qemu-iotests/check"
2124 LINKS="$LINKS python"
2125 LINKS="$LINKS contrib/plugins/Makefile "
2126 for bios_file in \
2127     $source_path/pc-bios/*.bin \
2128     $source_path/pc-bios/*.elf \
2129     $source_path/pc-bios/*.lid \
2130     $source_path/pc-bios/*.rom \
2131     $source_path/pc-bios/*.dtb \
2132     $source_path/pc-bios/*.img \
2133     $source_path/pc-bios/openbios-* \
2134     $source_path/pc-bios/u-boot.* \
2135     $source_path/pc-bios/palcode-* \
2136     $source_path/pc-bios/qemu_vga.ndrv
2137
2138 do
2139     LINKS="$LINKS pc-bios/$(basename $bios_file)"
2140 done
2141 for f in $LINKS ; do
2142     if [ -e "$source_path/$f" ]; then
2143         mkdir -p `dirname ./$f`
2144         symlink "$source_path/$f" "$f"
2145     fi
2146 done
2147
2148 (for i in $cross_cc_vars; do
2149   export $i
2150 done
2151 export target_list source_path use_containers cpu host_cc
2152 $source_path/tests/tcg/configure.sh)
2153
2154 config_mak=pc-bios/optionrom/config.mak
2155 echo "# Automatically generated by configure - do not modify" > $config_mak
2156 echo "TOPSRC_DIR=$source_path" >> $config_mak
2157
2158 if test "$skip_meson" = no; then
2159   cross="config-meson.cross.new"
2160   meson_quote() {
2161     test $# = 0 && return
2162     echo "'$(echo $* | sed "s/ /','/g")'"
2163   }
2164
2165   echo "# Automatically generated by configure - do not modify" > $cross
2166   echo "[properties]" >> $cross
2167
2168   # unroll any custom device configs
2169   for a in $device_archs; do
2170       eval "c=\$devices_${a}"
2171       echo "${a}-softmmu = '$c'" >> $cross
2172   done
2173
2174   test -z "$cxx" && echo "link_language = 'c'" >> $cross
2175   echo "[built-in options]" >> $cross
2176   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2177   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2178   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2179   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2180   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2181   echo "[binaries]" >> $cross
2182   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2183   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2184   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2185   echo "ar = [$(meson_quote $ar)]" >> $cross
2186   echo "nm = [$(meson_quote $nm)]" >> $cross
2187   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
2188   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2189   if has $sdl2_config; then
2190     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2191   fi
2192   echo "strip = [$(meson_quote $strip)]" >> $cross
2193   echo "widl = [$(meson_quote $widl)]" >> $cross
2194   echo "windres = [$(meson_quote $windres)]" >> $cross
2195   if test "$cross_compile" = "yes"; then
2196     cross_arg="--cross-file config-meson.cross"
2197     echo "[host_machine]" >> $cross
2198     echo "system = '$targetos'" >> $cross
2199     case "$cpu" in
2200         i386)
2201             echo "cpu_family = 'x86'" >> $cross
2202             ;;
2203         *)
2204             echo "cpu_family = '$cpu'" >> $cross
2205             ;;
2206     esac
2207     echo "cpu = '$cpu'" >> $cross
2208     if test "$bigendian" = "yes" ; then
2209         echo "endian = 'big'" >> $cross
2210     else
2211         echo "endian = 'little'" >> $cross
2212     fi
2213   else
2214     cross_arg="--native-file config-meson.cross"
2215   fi
2216   mv $cross config-meson.cross
2217
2218   rm -rf meson-private meson-info meson-logs
2219
2220   # Built-in options
2221   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2222   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2223   test "$pie" = no && meson_option_add -Db_pie=false
2224   test "$werror" = yes && meson_option_add -Dwerror=true
2225
2226   # QEMU options
2227   test "$capstone" != auto && meson_option_add "-Dcapstone=$capstone"
2228   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2229   test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2230   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2231   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2232   test "$slirp" != auto && meson_option_add "-Dslirp=$slirp"
2233   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2234   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2235   run_meson() {
2236     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2237   }
2238   eval run_meson $meson_options
2239   if test "$?" -ne 0 ; then
2240       error_exit "meson setup failed"
2241   fi
2242 else
2243   if test -f meson-private/cmd_line.txt; then
2244     # Adjust old command line options whose type was changed
2245     # Avoids having to use "setup --wipe" when Meson is upgraded
2246     perl -i -ne '
2247       s/^gettext = true$/gettext = auto/;
2248       s/^gettext = false$/gettext = disabled/;
2249       /^b_staticpic/ && next;
2250       print;' meson-private/cmd_line.txt
2251   fi
2252 fi
2253
2254 # Save the configure command line for later reuse.
2255 cat <<EOD >config.status
2256 #!/bin/sh
2257 # Generated by configure.
2258 # Run this file to recreate the current configuration.
2259 # Compiler output produced by configure, useful for debugging
2260 # configure, is in config.log if it exists.
2261 EOD
2262
2263 preserve_env() {
2264     envname=$1
2265
2266     eval envval=\$$envname
2267
2268     if test -n "$envval"
2269     then
2270         echo "$envname='$envval'" >> config.status
2271         echo "export $envname" >> config.status
2272     else
2273         echo "unset $envname" >> config.status
2274     fi
2275 }
2276
2277 # Preserve various env variables that influence what
2278 # features/build target configure will detect
2279 preserve_env AR
2280 preserve_env AS
2281 preserve_env CC
2282 preserve_env CPP
2283 preserve_env CFLAGS
2284 preserve_env CXX
2285 preserve_env CXXFLAGS
2286 preserve_env INSTALL
2287 preserve_env LD
2288 preserve_env LDFLAGS
2289 preserve_env LD_LIBRARY_PATH
2290 preserve_env LIBTOOL
2291 preserve_env MAKE
2292 preserve_env NM
2293 preserve_env OBJCOPY
2294 preserve_env PATH
2295 preserve_env PKG_CONFIG
2296 preserve_env PKG_CONFIG_LIBDIR
2297 preserve_env PKG_CONFIG_PATH
2298 preserve_env PYTHON
2299 preserve_env SDL2_CONFIG
2300 preserve_env SMBD
2301 preserve_env STRIP
2302 preserve_env WIDL
2303 preserve_env WINDRES
2304
2305 printf "exec" >>config.status
2306 for i in "$0" "$@"; do
2307   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2308 done
2309 echo ' "$@"' >>config.status
2310 chmod +x config.status
2311
2312 rm -r "$TMPDIR1"