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 ld_has() {
 228     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 229 }
 230
 231 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 232 then
 233   error_exit "main directory cannot contain spaces nor colons"
 234 fi
 235
 236 # default parameters
 237 cpu=""
 238 iasl="iasl"
 239 interp_prefix="/usr/gnemul/qemu-%M"
 240 static="no"
 241 cross_compile="no"
 242 cross_prefix=""
 243 audio_drv_list="default"
 244 block_drv_rw_whitelist=""
 245 block_drv_ro_whitelist=""
 246 host_cc="cc"
 247 lto="false"
 248 stack_protector=""
 249 safe_stack=""
 250 use_containers="yes"
 251 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 252
 253 if test -e "$source_path/.git"
 254 then
 255     git_submodules_action="update"
 256 else
 257     git_submodules_action="ignore"
 258 fi
 259
 260 git_submodules="ui/keycodemapdb"
 261 git="git"
 262
 263 # Don't accept a target_list environment variable.
 264 unset target_list
 265 unset target_list_exclude
 266
 267 # Default value for a variable defining feature "foo".
 268 #  * foo="no"  feature will only be used if --enable-foo arg is given
 269 #  * foo=""    feature will be searched for, and if found, will be used
 270 #              unless --disable-foo is given
 271 #  * foo="yes" this value will only be set by --enable-foo flag.
 272 #              feature will searched for,
 273 #              if not found, configure exits with error
 274 #
 275 # Always add --enable-foo and --disable-foo command line args.
 276 # Distributions want to ensure that several features are compiled in, and it
 277 # is impossible without a --enable-foo that exits if a feature is not found.
 278
 279 default_feature=""
 280 # parse CC options second
 281 for opt do
 282   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 283   case "$opt" in
 284       --without-default-features)
 285           default_feature="no"
 286   ;;
 287   esac
 288 done
 289
 290 EXTRA_CFLAGS=""
 291 EXTRA_CXXFLAGS=""
 292 EXTRA_OBJCFLAGS=""
 293 EXTRA_LDFLAGS=""
 294
 295 xen_ctrl_version="$default_feature"
 296 vhost_kernel="$default_feature"
 297 vhost_net="$default_feature"
 298 vhost_crypto="$default_feature"
 299 vhost_scsi="$default_feature"
 300 vhost_vsock="$default_feature"
 301 vhost_user="no"
 302 vhost_user_fs="$default_feature"
 303 vhost_vdpa="$default_feature"
 304 debug_info="yes"
 305 debug_tcg="no"
 306 debug="no"
 307 sanitizers="no"
 308 tsan="no"
 309 fortify_source="yes"
 310 gcov="no"
 311 EXESUF=""
 312 modules="no"
 313 prefix="/usr/local"
 314 qemu_suffix="qemu"
 315 softmmu="yes"
 316 linux_user=""
 317 bsd_user=""
 318 pkgversion=""
 319 pie=""
 320 trace_file="trace"
 321 coroutine=""
 322 tls_priority="NORMAL"
 323 plugins="$default_feature"
 324 meson=""
 325 meson_args=""
 326 ninja=""
 327 skip_meson=no
 328
 329 # The following Meson options are handled manually (still they
 330 # are included in the automatically generated help message)
 331
 332 # 1. Track which submodules are needed
 333 if test "$default_feature" = no ; then
 334   capstone="disabled"
 335   slirp="disabled"
 336 else
 337   capstone="auto"
 338   slirp="auto"
 339 fi
 340 fdt="auto"
 341
 342 # 2. Support --with/--without option
 343 default_devices="true"
 344
 345 # 3. Automatically enable/disable other options
 346 tcg="enabled"
 347 cfi="false"
 348
 349 # 4. Detection partly done in configure
 350 xen=${default_feature:+disabled}
 351
 352 # parse CC options second
 353 for opt do
 354   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 355   case "$opt" in
 356   --cross-prefix=*) cross_prefix="$optarg"
 357                     cross_compile="yes"
 358   ;;
 359   --cc=*) CC="$optarg"
 360   ;;
 361   --cxx=*) CXX="$optarg"
 362   ;;
 363   --cpu=*) cpu="$optarg"
 364   ;;
 365   --extra-cflags=*)
 366     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 367     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 368     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 369     ;;
 370   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 371   ;;
 372   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 373   ;;
 374   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 375   ;;
 376   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 377   ;;
 378   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 379                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 380                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 381   ;;
 382   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 383                 eval "cross_cc_${cc_arch}=\$optarg"
 384                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 385   ;;
 386   esac
 387 done
 388 # OS specific
 389 # Using uname is really, really broken.  Once we have the right set of checks
 390 # we can eliminate its usage altogether.
 391
 392 # Preferred compiler:
 393 #  ${CC} (if set)
 394 #  ${cross_prefix}gcc (if cross-prefix specified)
 395 #  system compiler
 396 if test -z "${CC}${cross_prefix}"; then
 397   cc="$host_cc"
 398 else
 399   cc="${CC-${cross_prefix}gcc}"
 400 fi
 401
 402 if test -z "${CXX}${cross_prefix}"; then
 403   cxx="c++"
 404 else
 405   cxx="${CXX-${cross_prefix}g++}"
 406 fi
 407
 408 ar="${AR-${cross_prefix}ar}"
 409 as="${AS-${cross_prefix}as}"
 410 ccas="${CCAS-$cc}"
 411 cpp="${CPP-$cc -E}"
 412 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 413 ld="${LD-${cross_prefix}ld}"
 414 ranlib="${RANLIB-${cross_prefix}ranlib}"
 415 nm="${NM-${cross_prefix}nm}"
 416 smbd="$SMBD"
 417 strip="${STRIP-${cross_prefix}strip}"
 418 windres="${WINDRES-${cross_prefix}windres}"
 419 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 420 query_pkg_config() {
 421     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 422 }
 423 pkg_config=query_pkg_config
 424 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 425
 426 # default flags for all hosts
 427 # We use -fwrapv to tell the compiler that we require a C dialect where
 428 # left shift of signed integers is well defined and has the expected
 429 # 2s-complement style results. (Both clang and gcc agree that it
 430 # provides these semantics.)
 431 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 432 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 433 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 434 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 435
 436 QEMU_LDFLAGS=
 437
 438 # Flags that are needed during configure but later taken care of by Meson
 439 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 440 CONFIGURE_LDFLAGS=
 441
 442
 443 check_define() {
 444 cat > $TMPC <<EOF
 445 #if !defined($1)
 446 #error $1 not defined
 447 #endif
 448 int main(void) { return 0; }
 449 EOF
 450   compile_object
 451 }
 452
 453 check_include() {
 454 cat > $TMPC <<EOF
 455 #include <$1>
 456 int main(void) { return 0; }
 457 EOF
 458   compile_object
 459 }
 460
 461 write_c_skeleton() {
 462     cat > $TMPC <<EOF
 463 int main(void) { return 0; }
 464 EOF
 465 }
 466
 467 if check_define __linux__ ; then
 468   targetos=linux
 469 elif check_define _WIN32 ; then
 470   targetos=windows
 471 elif check_define __OpenBSD__ ; then
 472   targetos=openbsd
 473 elif check_define __sun__ ; then
 474   targetos=sunos
 475 elif check_define __HAIKU__ ; then
 476   targetos=haiku
 477 elif check_define __FreeBSD__ ; then
 478   targetos=freebsd
 479 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 480   targetos=gnu/kfreebsd
 481 elif check_define __DragonFly__ ; then
 482   targetos=dragonfly
 483 elif check_define __NetBSD__; then
 484   targetos=netbsd
 485 elif check_define __APPLE__; then
 486   targetos=darwin
 487 else
 488   # This is a fatal error, but don't report it yet, because we
 489   # might be going to just print the --help text, or it might
 490   # be the result of a missing compiler.
 491   targetos=bogus
 492 fi
 493
 494 # OS specific
 495
 496 mingw32="no"
 497 bsd="no"
 498 linux="no"
 499 solaris="no"
 500 case $targetos in
 501 windows)
 502   mingw32="yes"
 503   plugins="no"
 504   pie="no"
 505 ;;
 506 gnu/kfreebsd)
 507   bsd="yes"
 508 ;;
 509 freebsd)
 510   bsd="yes"
 511   make="${MAKE-gmake}"
 512   # needed for kinfo_getvmmap(3) in libutil.h
 513 ;;
 514 dragonfly)
 515   bsd="yes"
 516   make="${MAKE-gmake}"
 517 ;;
 518 netbsd)
 519   bsd="yes"
 520   make="${MAKE-gmake}"
 521 ;;
 522 openbsd)
 523   bsd="yes"
 524   make="${MAKE-gmake}"
 525 ;;
 526 darwin)
 527   bsd="yes"
 528   darwin="yes"
 529   # Disable attempts to use ObjectiveC features in os/object.h since they
 530   # won't work when we're compiling with gcc as a C compiler.
 531   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 532 ;;
 533 sunos)
 534   solaris="yes"
 535   make="${MAKE-gmake}"
 536 # needed for CMSG_ macros in sys/socket.h
 537   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 538 # needed for TIOCWIN* defines in termios.h
 539   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 540   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 541   # Note that this check is broken for cross-compilation: if you're
 542   # cross-compiling to one of these OSes then you'll need to specify
 543   # the correct CPU with the --cpu option.
 544   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 545     cpu="x86_64"
 546   fi
 547 ;;
 548 haiku)
 549   pie="no"
 550   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 551 ;;
 552 linux)
 553   linux="yes"
 554   vhost_user=${default_feature:-yes}
 555 ;;
 556 esac
 557
 558 if test ! -z "$cpu" ; then
 559   # command line argument
 560   :
 561 elif check_define __i386__ ; then
 562   cpu="i386"
 563 elif check_define __x86_64__ ; then
 564   if check_define __ILP32__ ; then
 565     cpu="x32"
 566   else
 567     cpu="x86_64"
 568   fi
 569 elif check_define __sparc__ ; then
 570   if check_define __arch64__ ; then
 571     cpu="sparc64"
 572   else
 573     cpu="sparc"
 574   fi
 575 elif check_define _ARCH_PPC ; then
 576   if check_define _ARCH_PPC64 ; then
 577     if check_define _LITTLE_ENDIAN ; then
 578       cpu="ppc64le"
 579     else
 580       cpu="ppc64"
 581     fi
 582   else
 583     cpu="ppc"
 584   fi
 585 elif check_define __mips__ ; then
 586   cpu="mips"
 587 elif check_define __s390__ ; then
 588   if check_define __s390x__ ; then
 589     cpu="s390x"
 590   else
 591     cpu="s390"
 592   fi
 593 elif check_define __riscv ; then
 594   cpu="riscv"
 595 elif check_define __arm__ ; then
 596   cpu="arm"
 597 elif check_define __aarch64__ ; then
 598   cpu="aarch64"
 599 elif check_define __loongarch64 ; then
 600   cpu="loongarch64"
 601 else
 602   cpu=$(uname -m)
 603 fi
 604
 605 # Normalise host CPU name, set multilib cflags
 606 # Note that this case should only have supported host CPUs, not guests.
 607 case "$cpu" in
 608   armv*b|armv*l|arm)
 609     cpu="arm" ;;
 610
 611   i386|i486|i586|i686|i86pc|BePC)
 612     cpu="i386"
 613     CPU_CFLAGS="-m32" ;;
 614   x32)
 615     cpu="x86_64"
 616     CPU_CFLAGS="-mx32" ;;
 617   x86_64|amd64)
 618     cpu="x86_64"
 619     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 620     # If we truly care, we should simply detect this case at
 621     # runtime and generate the fallback to serial emulation.
 622     CPU_CFLAGS="-m64 -mcx16" ;;
 623
 624   mips*)
 625     cpu="mips" ;;
 626
 627   ppc)
 628     CPU_CFLAGS="-m32" ;;
 629   ppc64)
 630     CPU_CFLAGS="-m64 -mbig-endian" ;;
 631   ppc64le)
 632     cpu="ppc64"
 633     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 634
 635   s390)
 636     CPU_CFLAGS="-m31" ;;
 637   s390x)
 638     CPU_CFLAGS="-m64" ;;
 639
 640   sparc|sun4[cdmuv])
 641     cpu="sparc"
 642     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 643   sparc64)
 644     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 645 esac
 646
 647 : ${make=${MAKE-make}}
 648
 649 # We prefer python 3.x. A bare 'python' is traditionally
 650 # python 2.x, but some distros have it as python 3.x, so
 651 # we check that too
 652 python=
 653 explicit_python=no
 654 for binary in "${PYTHON-python3}" python
 655 do
 656     if has "$binary"
 657     then
 658         python=$(command -v "$binary")
 659         break
 660     fi
 661 done
 662
 663
 664 # Check for ancillary tools used in testing
 665 genisoimage=
 666 for binary in genisoimage mkisofs
 667 do
 668     if has $binary
 669     then
 670         genisoimage=$(command -v "$binary")
 671         break
 672     fi
 673 done
 674
 675 # Default objcc to clang if available, otherwise use CC
 676 if has clang; then
 677   objcc=clang
 678 else
 679   objcc="$cc"
 680 fi
 681
 682 if test "$mingw32" = "yes" ; then
 683   EXESUF=".exe"
 684   # MinGW needs -mthreads for TLS and macro _MT.
 685   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 686   write_c_skeleton;
 687   prefix="/qemu"
 688   qemu_suffix=""
 689 fi
 690
 691 werror=""
 692
 693 . $source_path/scripts/meson-buildoptions.sh
 694
 695 meson_options=
 696 meson_option_parse() {
 697   meson_options="$meson_options $(_meson_option_parse "$@")"
 698   if test $? -eq 1; then
 699     echo "ERROR: unknown option $1"
 700     echo "Try '$0 --help' for more information"
 701     exit 1
 702   fi
 703 }
 704
 705 for opt do
 706   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 707   case "$opt" in
 708   --help|-h) show_help=yes
 709   ;;
 710   --version|-V) exec cat $source_path/VERSION
 711   ;;
 712   --prefix=*) prefix="$optarg"
 713   ;;
 714   --interp-prefix=*) interp_prefix="$optarg"
 715   ;;
 716   --cross-prefix=*)
 717   ;;
 718   --cc=*)
 719   ;;
 720   --host-cc=*) host_cc="$optarg"
 721   ;;
 722   --cxx=*)
 723   ;;
 724   --iasl=*) iasl="$optarg"
 725   ;;
 726   --objcc=*) objcc="$optarg"
 727   ;;
 728   --make=*) make="$optarg"
 729   ;;
 730   --install=*)
 731   ;;
 732   --python=*) python="$optarg" ; explicit_python=yes
 733   ;;
 734   --sphinx-build=*) sphinx_build="$optarg"
 735   ;;
 736   --skip-meson) skip_meson=yes
 737   ;;
 738   --meson=*) meson="$optarg"
 739   ;;
 740   --ninja=*) ninja="$optarg"
 741   ;;
 742   --smbd=*) smbd="$optarg"
 743   ;;
 744   --extra-cflags=*)
 745   ;;
 746   --extra-cxxflags=*)
 747   ;;
 748   --extra-objcflags=*)
 749   ;;
 750   --extra-ldflags=*)
 751   ;;
 752   --cross-cc-*)
 753   ;;
 754   --enable-debug-info) debug_info="yes"
 755   ;;
 756   --disable-debug-info) debug_info="no"
 757   ;;
 758   --enable-modules)
 759       modules="yes"
 760   ;;
 761   --disable-modules)
 762       modules="no"
 763   ;;
 764   --cpu=*)
 765   ;;
 766   --target-list=*) target_list="$optarg"
 767                    if test "$target_list_exclude"; then
 768                        error_exit "Can't mix --target-list with --target-list-exclude"
 769                    fi
 770   ;;
 771   --target-list-exclude=*) target_list_exclude="$optarg"
 772                    if test "$target_list"; then
 773                        error_exit "Can't mix --target-list-exclude with --target-list"
 774                    fi
 775   ;;
 776   --with-trace-file=*) trace_file="$optarg"
 777   ;;
 778   --with-default-devices) default_devices="true"
 779   ;;
 780   --without-default-devices) default_devices="false"
 781   ;;
 782   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 783   ;;
 784   --with-devices-*) device_arch=${opt#--with-devices-};
 785                     device_arch=${device_arch%%=*}
 786                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 787                     if test -f "$cf"; then
 788                         device_archs="$device_archs $device_arch"
 789                         eval "devices_${device_arch}=\$optarg"
 790                     else
 791                         error_exit "File $cf does not exist"
 792                     fi
 793   ;;
 794   --without-default-features) # processed above
 795   ;;
 796   --enable-gcov) gcov="yes"
 797   ;;
 798   --static)
 799     static="yes"
 800     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 801   ;;
 802   --mandir=*) mandir="$optarg"
 803   ;;
 804   --bindir=*) bindir="$optarg"
 805   ;;
 806   --libdir=*) libdir="$optarg"
 807   ;;
 808   --libexecdir=*) libexecdir="$optarg"
 809   ;;
 810   --includedir=*) includedir="$optarg"
 811   ;;
 812   --datadir=*) datadir="$optarg"
 813   ;;
 814   --with-suffix=*) qemu_suffix="$optarg"
 815   ;;
 816   --docdir=*) docdir="$optarg"
 817   ;;
 818   --localedir=*) localedir="$optarg"
 819   ;;
 820   --sysconfdir=*) sysconfdir="$optarg"
 821   ;;
 822   --localstatedir=*) local_statedir="$optarg"
 823   ;;
 824   --firmwarepath=*) firmwarepath="$optarg"
 825   ;;
 826   --host=*|--build=*|\
 827   --disable-dependency-tracking|\
 828   --sbindir=*|--sharedstatedir=*|\
 829   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 830   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 831     # These switches are silently ignored, for compatibility with
 832     # autoconf-generated configure scripts. This allows QEMU's
 833     # configure to be used by RPM and similar macros that set
 834     # lots of directory switches by default.
 835   ;;
 836   --audio-drv-list=*) audio_drv_list="$optarg"
 837   ;;
 838   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
 839   ;;
 840   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
 841   ;;
 842   --enable-debug-tcg) debug_tcg="yes"
 843   ;;
 844   --disable-debug-tcg) debug_tcg="no"
 845   ;;
 846   --enable-debug)
 847       # Enable debugging options that aren't excessively noisy
 848       debug_tcg="yes"
 849       meson_option_parse --enable-debug-mutex ""
 850       debug="yes"
 851       fortify_source="no"
 852   ;;
 853   --enable-sanitizers) sanitizers="yes"
 854   ;;
 855   --disable-sanitizers) sanitizers="no"
 856   ;;
 857   --enable-tsan) tsan="yes"
 858   ;;
 859   --disable-tsan) tsan="no"
 860   ;;
 861   --disable-slirp) slirp="disabled"
 862   ;;
 863   --enable-slirp) slirp="enabled"
 864   ;;
 865   --enable-slirp=git) slirp="internal"
 866   ;;
 867   --enable-slirp=*) slirp="$optarg"
 868   ;;
 869   --disable-xen) xen="disabled"
 870   ;;
 871   --enable-xen) xen="enabled"
 872   ;;
 873   --disable-tcg) tcg="disabled"
 874                  plugins="no"
 875   ;;
 876   --enable-tcg) tcg="enabled"
 877   ;;
 878   --disable-system) softmmu="no"
 879   ;;
 880   --enable-system) softmmu="yes"
 881   ;;
 882   --disable-user)
 883       linux_user="no" ;
 884       bsd_user="no" ;
 885   ;;
 886   --enable-user) ;;
 887   --disable-linux-user) linux_user="no"
 888   ;;
 889   --enable-linux-user) linux_user="yes"
 890   ;;
 891   --disable-bsd-user) bsd_user="no"
 892   ;;
 893   --enable-bsd-user) bsd_user="yes"
 894   ;;
 895   --enable-pie) pie="yes"
 896   ;;
 897   --disable-pie) pie="no"
 898   ;;
 899   --enable-werror) werror="yes"
 900   ;;
 901   --disable-werror) werror="no"
 902   ;;
 903   --enable-lto) lto="true"
 904   ;;
 905   --disable-lto) lto="false"
 906   ;;
 907   --enable-stack-protector) stack_protector="yes"
 908   ;;
 909   --disable-stack-protector) stack_protector="no"
 910   ;;
 911   --enable-safe-stack) safe_stack="yes"
 912   ;;
 913   --disable-safe-stack) safe_stack="no"
 914   ;;
 915   --enable-cfi)
 916       cfi="true";
 917       lto="true";
 918   ;;
 919   --disable-cfi) cfi="false"
 920   ;;
 921   --disable-fdt) fdt="disabled"
 922   ;;
 923   --enable-fdt) fdt="enabled"
 924   ;;
 925   --enable-fdt=git) fdt="internal"
 926   ;;
 927   --enable-fdt=*) fdt="$optarg"
 928   ;;
 929   --with-pkgversion=*) pkgversion="$optarg"
 930   ;;
 931   --with-coroutine=*) coroutine="$optarg"
 932   ;;
 933   --disable-vhost-net) vhost_net="no"
 934   ;;
 935   --enable-vhost-net) vhost_net="yes"
 936   ;;
 937   --disable-vhost-crypto) vhost_crypto="no"
 938   ;;
 939   --enable-vhost-crypto) vhost_crypto="yes"
 940   ;;
 941   --disable-vhost-scsi) vhost_scsi="no"
 942   ;;
 943   --enable-vhost-scsi) vhost_scsi="yes"
 944   ;;
 945   --disable-vhost-vsock) vhost_vsock="no"
 946   ;;
 947   --enable-vhost-vsock) vhost_vsock="yes"
 948   ;;
 949   --disable-vhost-user-fs) vhost_user_fs="no"
 950   ;;
 951   --enable-vhost-user-fs) vhost_user_fs="yes"
 952   ;;
 953   --disable-zlib-test)
 954   ;;
 955   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
 956       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
 957   ;;
 958   --enable-vhdx|--disable-vhdx)
 959       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
 960   ;;
 961   --enable-uuid|--disable-uuid)
 962       echo "$0: $opt is obsolete, UUID support is always built" >&2
 963   ;;
 964   --tls-priority=*) tls_priority="$optarg"
 965   ;;
 966   --disable-vhost-user) vhost_user="no"
 967   ;;
 968   --enable-vhost-user) vhost_user="yes"
 969   ;;
 970   --disable-vhost-vdpa) vhost_vdpa="no"
 971   ;;
 972   --enable-vhost-vdpa) vhost_vdpa="yes"
 973   ;;
 974   --disable-vhost-kernel) vhost_kernel="no"
 975   ;;
 976   --enable-vhost-kernel) vhost_kernel="yes"
 977   ;;
 978   --disable-capstone) capstone="disabled"
 979   ;;
 980   --enable-capstone) capstone="enabled"
 981   ;;
 982   --enable-capstone=git) capstone="internal"
 983   ;;
 984   --enable-capstone=*) capstone="$optarg"
 985   ;;
 986   --with-git=*) git="$optarg"
 987   ;;
 988   --with-git-submodules=*)
 989       git_submodules_action="$optarg"
 990   ;;
 991   --enable-plugins) if test "$mingw32" = "yes"; then
 992                         error_exit "TCG plugins not currently supported on Windows platforms"
 993                     else
 994                         plugins="yes"
 995                     fi
 996   ;;
 997   --disable-plugins) plugins="no"
 998   ;;
 999   --enable-containers) use_containers="yes"
1000   ;;
1001   --disable-containers) use_containers="no"
1002   ;;
1003   --gdb=*) gdb_bin="$optarg"
1004   ;;
1005   # backwards compatibility options
1006   --enable-trace-backend=*) meson_option_parse "--enable-trace-backends=$optarg" "$optarg"
1007   ;;
1008   --disable-blobs) meson_option_parse --disable-install-blobs ""
1009   ;;
1010   --enable-tcmalloc) meson_option_parse --enable-malloc=tcmalloc tcmalloc
1011   ;;
1012   --enable-jemalloc) meson_option_parse --enable-malloc=jemalloc jemalloc
1013   ;;
1014   # everything else has the same name in configure and meson
1015   --enable-* | --disable-*) meson_option_parse "$opt" "$optarg"
1016   ;;
1017   *)
1018       echo "ERROR: unknown option $opt"
1019       echo "Try '$0 --help' for more information"
1020       exit 1
1021   ;;
1022   esac
1023 done
1024
1025 # test for any invalid configuration combinations
1026 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
1027     error_exit "Can't enable plugins on non-TCG builds"
1028 fi
1029
1030 case $git_submodules_action in
1031     update|validate)
1032         if test ! -e "$source_path/.git"; then
1033             echo "ERROR: cannot $git_submodules_action git submodules without .git"
1034             exit 1
1035         fi
1036     ;;
1037     ignore)
1038         if ! test -f "$source_path/ui/keycodemapdb/README"
1039         then
1040             echo
1041             echo "ERROR: missing GIT submodules"
1042             echo
1043             if test -e "$source_path/.git"; then
1044                 echo "--with-git-submodules=ignore specified but submodules were not"
1045                 echo "checked out.  Please initialize and update submodules."
1046             else
1047                 echo "This is not a GIT checkout but module content appears to"
1048                 echo "be missing. Do not use 'git archive' or GitHub download links"
1049                 echo "to acquire QEMU source archives. Non-GIT builds are only"
1050                 echo "supported with source archives linked from:"
1051                 echo
1052                 echo "  https://www.qemu.org/download/#source"
1053                 echo
1054                 echo "Developers working with GIT can use scripts/archive-source.sh"
1055                 echo "if they need to create valid source archives."
1056             fi
1057             echo
1058             exit 1
1059         fi
1060     ;;
1061     *)
1062         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
1063         exit 1
1064     ;;
1065 esac
1066
1067 libdir="${libdir:-$prefix/lib}"
1068 libexecdir="${libexecdir:-$prefix/libexec}"
1069 includedir="${includedir:-$prefix/include}"
1070
1071 if test "$mingw32" = "yes" ; then
1072     bindir="${bindir:-$prefix}"
1073 else
1074     bindir="${bindir:-$prefix/bin}"
1075 fi
1076 mandir="${mandir:-$prefix/share/man}"
1077 datadir="${datadir:-$prefix/share}"
1078 docdir="${docdir:-$prefix/share/doc}"
1079 sysconfdir="${sysconfdir:-$prefix/etc}"
1080 local_statedir="${local_statedir:-$prefix/var}"
1081 firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1082 localedir="${localedir:-$datadir/locale}"
1083
1084 if eval test -z "\${cross_cc_$cpu}"; then
1085     eval "cross_cc_${cpu}=\$cc"
1086     cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1087 fi
1088
1089 default_target_list=""
1090 mak_wilds=""
1091
1092 if [ "$linux_user" != no ]; then
1093     if [ "$targetos" = linux ] && [ -d $source_path/linux-user/include/host/$cpu ]; then
1094         linux_user=yes
1095     elif [ "$linux_user" = yes ]; then
1096         error_exit "linux-user not supported on this architecture"
1097     fi
1098 fi
1099 if [ "$bsd_user" != no ]; then
1100     if [ "$bsd_user" = "" ]; then
1101         test $targetos = freebsd && bsd_user=yes
1102     fi
1103     if [ "$bsd_user" = yes ] && ! [ -d $source_path/bsd-user/$targetos ]; then
1104         error_exit "bsd-user not supported on this host OS"
1105     fi
1106 fi
1107 if [ "$softmmu" = "yes" ]; then
1108     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
1109 fi
1110 if [ "$linux_user" = "yes" ]; then
1111     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
1112 fi
1113 if [ "$bsd_user" = "yes" ]; then
1114     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
1115 fi
1116
1117 for config in $mak_wilds; do
1118     target="$(basename "$config" .mak)"
1119     if echo "$target_list_exclude" | grep -vq "$target"; then
1120         default_target_list="${default_target_list} $target"
1121     fi
1122 done
1123
1124 if test x"$show_help" = x"yes" ; then
1125 cat << EOF
1126
1127 Usage: configure [options]
1128 Options: [defaults in brackets after descriptions]
1129
1130 Standard options:
1131   --help                   print this message
1132   --prefix=PREFIX          install in PREFIX [$prefix]
1133   --interp-prefix=PREFIX   where to find shared libraries, etc.
1134                            use %M for cpu name [$interp_prefix]
1135   --target-list=LIST       set target list (default: build all)
1136 $(echo Available targets: $default_target_list | \
1137   fold -s -w 53 | sed -e 's/^/                           /')
1138   --target-list-exclude=LIST exclude a set of targets from the default target-list
1139
1140 Advanced options (experts only):
1141   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1142   --cc=CC                  use C compiler CC [$cc]
1143   --iasl=IASL              use ACPI compiler IASL [$iasl]
1144   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1145                            build time
1146   --cxx=CXX                use C++ compiler CXX [$cxx]
1147   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1148   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
1149   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
1150   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
1151   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1152   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1153   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
1154   --make=MAKE              use specified make [$make]
1155   --python=PYTHON          use specified python [$python]
1156   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1157   --meson=MESON            use specified meson [$meson]
1158   --ninja=NINJA            use specified ninja [$ninja]
1159   --smbd=SMBD              use specified smbd [$smbd]
1160   --with-git=GIT           use specified git [$git]
1161   --with-git-submodules=update   update git submodules (default if .git dir exists)
1162   --with-git-submodules=validate fail if git submodules are not up to date
1163   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1164   --static                 enable static build [$static]
1165   --mandir=PATH            install man pages in PATH
1166   --datadir=PATH           install firmware in PATH/$qemu_suffix
1167   --localedir=PATH         install translation in PATH/$qemu_suffix
1168   --docdir=PATH            install documentation in PATH/$qemu_suffix
1169   --bindir=PATH            install binaries in PATH
1170   --libdir=PATH            install libraries in PATH
1171   --libexecdir=PATH        install helper binaries in PATH
1172   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1173   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1174   --firmwarepath=PATH      search PATH for firmware files
1175   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1176   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1177   --with-pkgversion=VERS   use specified string as sub-version of the package
1178   --without-default-features default all --enable-* options to "disabled"
1179   --without-default-devices  do not include any device that is not needed to
1180                            start the emulator (only use if you are including
1181                            desired devices in configs/devices/)
1182   --with-devices-ARCH=NAME override default configs/devices
1183   --enable-debug           enable common debug build options
1184   --enable-sanitizers      enable default sanitizers
1185   --enable-tsan            enable thread sanitizer
1186   --disable-werror         disable compilation abort on warning
1187   --disable-stack-protector disable compiler-provided stack protection
1188   --audio-drv-list=LIST    set audio drivers to try if -audiodev is not used
1189   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1190   --block-drv-rw-whitelist=L
1191                            set block driver read-write whitelist
1192                            (by default affects only QEMU, not tools like qemu-img)
1193   --block-drv-ro-whitelist=L
1194                            set block driver read-only whitelist
1195                            (by default affects only QEMU, not tools like qemu-img)
1196   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1197                            Default:trace-<pid>
1198   --cpu=CPU                Build for host CPU [$cpu]
1199   --with-coroutine=BACKEND coroutine backend. Supported options:
1200                            ucontext, sigaltstack, windows
1201   --enable-gcov            enable test coverage analysis with gcov
1202   --tls-priority           default TLS protocol/cipher priority string
1203   --enable-plugins
1204                            enable plugins via shared library loading
1205   --disable-containers     don't use containers for cross-building
1206   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1207 EOF
1208   meson_options_help
1209 cat << EOF
1210   system          all system emulation targets
1211   user            supported user emulation targets
1212   linux-user      all linux usermode emulation targets
1213   bsd-user        all BSD usermode emulation targets
1214   pie             Position Independent Executables
1215   modules         modules support (non-Windows)
1216   debug-tcg       TCG debugging (default is disabled)
1217   debug-info      debugging information
1218   lto             Enable Link-Time Optimization.
1219   safe-stack      SafeStack Stack Smash Protection. Depends on
1220                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1221   vhost-net       vhost-net kernel acceleration support
1222   vhost-vsock     virtio sockets device support
1223   vhost-scsi      vhost-scsi kernel target support
1224   vhost-crypto    vhost-user-crypto backend support
1225   vhost-kernel    vhost kernel backend support
1226   vhost-user      vhost-user backend support
1227   vhost-vdpa      vhost-vdpa kernel backend support
1228
1229 NOTE: The object files are built at the place where configure is launched
1230 EOF
1231 exit 0
1232 fi
1233
1234 # Remove old dependency files to make sure that they get properly regenerated
1235 rm -f */config-devices.mak.d
1236
1237 if test -z "$python"
1238 then
1239     error_exit "Python not found. Use --python=/path/to/python"
1240 fi
1241 if ! has "$make"
1242 then
1243     error_exit "GNU make ($make) not found"
1244 fi
1245
1246 # Note that if the Python conditional here evaluates True we will exit
1247 # with status 1 which is a shell 'false' value.
1248 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1249   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1250       "Use --python=/path/to/python to specify a supported Python."
1251 fi
1252
1253 # Preserve python version since some functionality is dependent on it
1254 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)
1255
1256 # Suppress writing compiled files
1257 python="$python -B"
1258
1259 if test -z "$meson"; then
1260     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.59.3; then
1261         meson=meson
1262     elif test $git_submodules_action != 'ignore' ; then
1263         meson=git
1264     elif test -e "${source_path}/meson/meson.py" ; then
1265         meson=internal
1266     else
1267         if test "$explicit_python" = yes; then
1268             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1269         else
1270             error_exit "Meson not found.  Use --meson=/path/to/meson"
1271         fi
1272     fi
1273 else
1274     # Meson uses its own Python interpreter to invoke other Python scripts,
1275     # but the user wants to use the one they specified with --python.
1276     #
1277     # We do not want to override the distro Python interpreter (and sometimes
1278     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1279     # just require --meson=git|internal together with --python.
1280     if test "$explicit_python" = yes; then
1281         case "$meson" in
1282             git | internal) ;;
1283             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1284         esac
1285     fi
1286 fi
1287
1288 if test "$meson" = git; then
1289     git_submodules="${git_submodules} meson"
1290 fi
1291
1292 case "$meson" in
1293     git | internal)
1294         meson="$python ${source_path}/meson/meson.py"
1295         ;;
1296     *) meson=$(command -v "$meson") ;;
1297 esac
1298
1299 # Probe for ninja
1300
1301 if test -z "$ninja"; then
1302     for c in ninja ninja-build samu; do
1303         if has $c; then
1304             ninja=$(command -v "$c")
1305             break
1306         fi
1307     done
1308     if test -z "$ninja"; then
1309       error_exit "Cannot find Ninja"
1310     fi
1311 fi
1312
1313 # Check that the C compiler works. Doing this here before testing
1314 # the host CPU ensures that we had a valid CC to autodetect the
1315 # $cpu var (and we should bail right here if that's not the case).
1316 # It also allows the help message to be printed without a CC.
1317 write_c_skeleton;
1318 if compile_object ; then
1319   : C compiler works ok
1320 else
1321     error_exit "\"$cc\" either does not exist or does not work"
1322 fi
1323 if ! compile_prog ; then
1324     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1325 fi
1326
1327 # Consult white-list to determine whether to enable werror
1328 # by default.  Only enable by default for git builds
1329 if test -z "$werror" ; then
1330     if test "$git_submodules_action" != "ignore" && \
1331         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1332         werror="yes"
1333     else
1334         werror="no"
1335     fi
1336 fi
1337
1338 if test "$targetos" = "bogus"; then
1339     # Now that we know that we're not printing the help and that
1340     # the compiler works (so the results of the check_defines we used
1341     # to identify the OS are reliable), if we didn't recognize the
1342     # host OS we should stop now.
1343     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1344 fi
1345
1346 # Check whether the compiler matches our minimum requirements:
1347 cat > $TMPC << EOF
1348 #if defined(__clang_major__) && defined(__clang_minor__)
1349 # ifdef __apple_build_version__
1350 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1351 #   error You need at least XCode Clang v10.0 to compile QEMU
1352 #  endif
1353 # else
1354 #  if __clang_major__ < 6 || (__clang_major__ == 6 && __clang_minor__ < 0)
1355 #   error You need at least Clang v6.0 to compile QEMU
1356 #  endif
1357 # endif
1358 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1359 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1360 #  error You need at least GCC v7.4.0 to compile QEMU
1361 # endif
1362 #else
1363 # error You either need GCC or Clang to compiler QEMU
1364 #endif
1365 int main (void) { return 0; }
1366 EOF
1367 if ! compile_prog "" "" ; then
1368     error_exit "You need at least GCC v7.4 or Clang v6.0 (or XCode Clang v10.0)"
1369 fi
1370
1371 # Accumulate -Wfoo and -Wno-bar separately.
1372 # We will list all of the enable flags first, and the disable flags second.
1373 # Note that we do not add -Werror, because that would enable it for all
1374 # configure tests. If a configure test failed due to -Werror this would
1375 # just silently disable some features, so it's too error prone.
1376
1377 warn_flags=
1378 add_to warn_flags -Wold-style-declaration
1379 add_to warn_flags -Wold-style-definition
1380 add_to warn_flags -Wtype-limits
1381 add_to warn_flags -Wformat-security
1382 add_to warn_flags -Wformat-y2k
1383 add_to warn_flags -Winit-self
1384 add_to warn_flags -Wignored-qualifiers
1385 add_to warn_flags -Wempty-body
1386 add_to warn_flags -Wnested-externs
1387 add_to warn_flags -Wendif-labels
1388 add_to warn_flags -Wexpansion-to-defined
1389 add_to warn_flags -Wimplicit-fallthrough=2
1390
1391 nowarn_flags=
1392 add_to nowarn_flags -Wno-initializer-overrides
1393 add_to nowarn_flags -Wno-missing-include-dirs
1394 add_to nowarn_flags -Wno-shift-negative-value
1395 add_to nowarn_flags -Wno-string-plus-int
1396 add_to nowarn_flags -Wno-typedef-redefinition
1397 add_to nowarn_flags -Wno-tautological-type-limit-compare
1398 add_to nowarn_flags -Wno-psabi
1399
1400 gcc_flags="$warn_flags $nowarn_flags"
1401
1402 cc_has_warning_flag() {
1403     write_c_skeleton;
1404
1405     # Use the positive sense of the flag when testing for -Wno-wombat
1406     # support (gcc will happily accept the -Wno- form of unknown
1407     # warning options).
1408     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1409     compile_prog "-Werror $optflag" ""
1410 }
1411
1412 objcc_has_warning_flag() {
1413     cat > $TMPM <<EOF
1414 int main(void) { return 0; }
1415 EOF
1416
1417     # Use the positive sense of the flag when testing for -Wno-wombat
1418     # support (gcc will happily accept the -Wno- form of unknown
1419     # warning options).
1420     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1421     do_objc -Werror $optflag \
1422       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1423       -o $TMPE $TMPM $QEMU_LDFLAGS
1424 }
1425
1426 for flag in $gcc_flags; do
1427     if cc_has_warning_flag $flag ; then
1428         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1429     fi
1430     if objcc_has_warning_flag $flag ; then
1431         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1432     fi
1433 done
1434
1435 if test "$stack_protector" != "no"; then
1436   cat > $TMPC << EOF
1437 int main(int argc, char *argv[])
1438 {
1439     char arr[64], *p = arr, *c = argv[0];
1440     while (*c) {
1441         *p++ = *c++;
1442     }
1443     return 0;
1444 }
1445 EOF
1446   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1447   sp_on=0
1448   for flag in $gcc_flags; do
1449     # We need to check both a compile and a link, since some compiler
1450     # setups fail only on a .c->.o compile and some only at link time
1451     if compile_object "-Werror $flag" &&
1452        compile_prog "-Werror $flag" ""; then
1453       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1454       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1455       sp_on=1
1456       break
1457     fi
1458   done
1459   if test "$stack_protector" = yes; then
1460     if test $sp_on = 0; then
1461       error_exit "Stack protector not supported"
1462     fi
1463   fi
1464 fi
1465
1466 # Disable -Wmissing-braces on older compilers that warn even for
1467 # the "universal" C zero initializer {0}.
1468 cat > $TMPC << EOF
1469 struct {
1470   int a[2];
1471 } x = {0};
1472 EOF
1473 if compile_object "-Werror" "" ; then
1474   :
1475 else
1476   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
1477 fi
1478
1479 # Our module code doesn't support Windows
1480 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1481   error_exit "Modules are not available for Windows"
1482 fi
1483
1484 # Static linking is not possible with plugins, modules or PIE
1485 if test "$static" = "yes" ; then
1486   if test "$modules" = "yes" ; then
1487     error_exit "static and modules are mutually incompatible"
1488   fi
1489   if test "$plugins" = "yes"; then
1490     error_exit "static and plugins are mutually incompatible"
1491   else
1492     plugins="no"
1493   fi
1494 fi
1495 test "$plugins" = "" && plugins=yes
1496
1497 cat > $TMPC << EOF
1498
1499 #ifdef __linux__
1500 #  define THREAD __thread
1501 #else
1502 #  define THREAD
1503 #endif
1504 static THREAD int tls_var;
1505 int main(void) { return tls_var; }
1506 EOF
1507
1508 # Check we support -fno-pie and -no-pie first; we will need the former for
1509 # building ROMs, and both for everything if --disable-pie is passed.
1510 if compile_prog "-Werror -fno-pie" "-no-pie"; then
1511   CFLAGS_NOPIE="-fno-pie"
1512   LDFLAGS_NOPIE="-no-pie"
1513 fi
1514
1515 if test "$static" = "yes"; then
1516   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1517     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1518     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
1519     pie="yes"
1520   elif test "$pie" = "yes"; then
1521     error_exit "-static-pie not available due to missing toolchain support"
1522   else
1523     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
1524     pie="no"
1525   fi
1526 elif test "$pie" = "no"; then
1527   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
1528   CONFIGURE_LDFLAGS="$LDFLAGS_NOPIE $CONFIGURE_LDFLAGS"
1529 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1530   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1531   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1532   pie="yes"
1533 elif test "$pie" = "yes"; then
1534   error_exit "PIE not available due to missing toolchain support"
1535 else
1536   echo "Disabling PIE due to missing toolchain support"
1537   pie="no"
1538 fi
1539
1540 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
1541 # The combination is known as "full relro", because .got.plt is read-only too.
1542 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
1543   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
1544 fi
1545
1546 ##########################################
1547 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1548 # use i686 as default anyway, but for those that don't, an explicit
1549 # specification is necessary
1550
1551 if test "$cpu" = "i386"; then
1552   cat > $TMPC << EOF
1553 static int sfaa(int *ptr)
1554 {
1555   return __sync_fetch_and_and(ptr, 0);
1556 }
1557
1558 int main(void)
1559 {
1560   int val = 42;
1561   val = __sync_val_compare_and_swap(&val, 0, 1);
1562   sfaa(&val);
1563   return val;
1564 }
1565 EOF
1566   if ! compile_prog "" "" ; then
1567     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1568   fi
1569 fi
1570
1571 if test "$tcg" = "enabled"; then
1572     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1573     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1574 fi
1575
1576 if test -z "${target_list+xxx}" ; then
1577     default_targets=yes
1578     for target in $default_target_list; do
1579         target_list="$target_list $target"
1580     done
1581     target_list="${target_list# }"
1582 else
1583     default_targets=no
1584     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1585     for target in $target_list; do
1586         # Check that we recognised the target name; this allows a more
1587         # friendly error message than if we let it fall through.
1588         case " $default_target_list " in
1589             *" $target "*)
1590                 ;;
1591             *)
1592                 error_exit "Unknown target name '$target'"
1593                 ;;
1594         esac
1595     done
1596 fi
1597
1598 # see if system emulation was really requested
1599 case " $target_list " in
1600   *"-softmmu "*) softmmu=yes
1601   ;;
1602   *) softmmu=no
1603   ;;
1604 esac
1605
1606 feature_not_found() {
1607   feature=$1
1608   remedy=$2
1609
1610   error_exit "User requested feature $feature" \
1611       "configure was not able to find it." \
1612       "$remedy"
1613 }
1614
1615 # ---
1616 # big/little endian test
1617 cat > $TMPC << EOF
1618 #include <stdio.h>
1619 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
1620 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
1621 int main(int argc, char *argv[])
1622 {
1623     return printf("%s %s\n", (char *)big_endian, (char *)little_endian);
1624 }
1625 EOF
1626
1627 if compile_prog ; then
1628     if strings -a $TMPE | grep -q BiGeNdIaN ; then
1629         bigendian="yes"
1630     elif strings -a $TMPE | grep -q LiTtLeEnDiAn ; then
1631         bigendian="no"
1632     else
1633         echo big/little test failed
1634         exit 1
1635     fi
1636 else
1637     echo big/little test failed
1638     exit 1
1639 fi
1640
1641 #########################################
1642 # vhost interdependencies and host support
1643
1644 # vhost backends
1645 if test "$vhost_user" = "yes" && test "$mingw32" = "yes"; then
1646   error_exit "vhost-user is not available on Windows"
1647 fi
1648 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
1649 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
1650   error_exit "vhost-vdpa is only available on Linux"
1651 fi
1652 test "$vhost_kernel" = "" && vhost_kernel=$linux
1653 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
1654   error_exit "vhost-kernel is only available on Linux"
1655 fi
1656
1657 # vhost-kernel devices
1658 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
1659 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
1660   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
1661 fi
1662 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
1663 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
1664   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
1665 fi
1666
1667 # vhost-user backends
1668 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
1669 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
1670   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
1671 fi
1672 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
1673 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
1674   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
1675 fi
1676 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
1677 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
1678   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
1679 fi
1680 #vhost-vdpa backends
1681 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
1682 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
1683   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
1684 fi
1685
1686 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
1687 if test "$vhost_net" = ""; then
1688   test "$vhost_net_user" = "yes" && vhost_net=yes
1689   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
1690   test "$vhost_kernel" = "yes" && vhost_net=yes
1691 fi
1692
1693 ##########################################
1694 # pkg-config probe
1695
1696 if ! has "$pkg_config_exe"; then
1697   error_exit "pkg-config binary '$pkg_config_exe' not found"
1698 fi
1699
1700 ##########################################
1701 # xen probe
1702
1703 if test "$xen" != "disabled" ; then
1704   # Check whether Xen library path is specified via --extra-ldflags to avoid
1705   # overriding this setting with pkg-config output. If not, try pkg-config
1706   # to obtain all needed flags.
1707
1708   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
1709      $pkg_config --exists xencontrol ; then
1710     xen_ctrl_version="$(printf '%d%02d%02d' \
1711       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
1712     xen=enabled
1713     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
1714     xen_pc="$xen_pc xenevtchn xendevicemodel"
1715     if $pkg_config --exists xentoolcore; then
1716       xen_pc="$xen_pc xentoolcore"
1717     fi
1718     xen_cflags="$($pkg_config --cflags $xen_pc)"
1719     xen_libs="$($pkg_config --libs $xen_pc)"
1720   else
1721
1722     xen_libs="-lxenstore -lxenctrl"
1723     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
1724
1725     # First we test whether Xen headers and libraries are available.
1726     # If no, we are done and there is no Xen support.
1727     # If yes, more tests are run to detect the Xen version.
1728
1729     # Xen (any)
1730     cat > $TMPC <<EOF
1731 #include <xenctrl.h>
1732 int main(void) {
1733   return 0;
1734 }
1735 EOF
1736     if ! compile_prog "" "$xen_libs" ; then
1737       # Xen not found
1738       if test "$xen" = "enabled" ; then
1739         feature_not_found "xen" "Install xen devel"
1740       fi
1741       xen=disabled
1742
1743     # Xen unstable
1744     elif
1745         cat > $TMPC <<EOF &&
1746 #undef XC_WANT_COMPAT_DEVICEMODEL_API
1747 #define __XEN_TOOLS__
1748 #include <xendevicemodel.h>
1749 #include <xenforeignmemory.h>
1750 int main(void) {
1751   xendevicemodel_handle *xd;
1752   xenforeignmemory_handle *xfmem;
1753
1754   xd = xendevicemodel_open(0, 0);
1755   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
1756
1757   xfmem = xenforeignmemory_open(0, 0);
1758   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
1759
1760   return 0;
1761 }
1762 EOF
1763         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
1764       then
1765       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
1766       xen_ctrl_version=41100
1767       xen=enabled
1768     elif
1769         cat > $TMPC <<EOF &&
1770 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
1771 #include <xenforeignmemory.h>
1772 #include <xentoolcore.h>
1773 int main(void) {
1774   xenforeignmemory_handle *xfmem;
1775
1776   xfmem = xenforeignmemory_open(0, 0);
1777   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
1778   xentoolcore_restrict_all(0);
1779
1780   return 0;
1781 }
1782 EOF
1783         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
1784       then
1785       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
1786       xen_ctrl_version=41000
1787       xen=enabled
1788     elif
1789         cat > $TMPC <<EOF &&
1790 #undef XC_WANT_COMPAT_DEVICEMODEL_API
1791 #define __XEN_TOOLS__
1792 #include <xendevicemodel.h>
1793 int main(void) {
1794   xendevicemodel_handle *xd;
1795
1796   xd = xendevicemodel_open(0, 0);
1797   xendevicemodel_close(xd);
1798
1799   return 0;
1800 }
1801 EOF
1802         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
1803       then
1804       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
1805       xen_ctrl_version=40900
1806       xen=enabled
1807     elif
1808         cat > $TMPC <<EOF &&
1809 /*
1810  * If we have stable libs the we don't want the libxc compat
1811  * layers, regardless of what CFLAGS we may have been given.
1812  *
1813  * Also, check if xengnttab_grant_copy_segment_t is defined and
1814  * grant copy operation is implemented.
1815  */
1816 #undef XC_WANT_COMPAT_EVTCHN_API
1817 #undef XC_WANT_COMPAT_GNTTAB_API
1818 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
1819 #include <xenctrl.h>
1820 #include <xenstore.h>
1821 #include <xenevtchn.h>
1822 #include <xengnttab.h>
1823 #include <xenforeignmemory.h>
1824 #include <stdint.h>
1825 #include <xen/hvm/hvm_info_table.h>
1826 #if !defined(HVM_MAX_VCPUS)
1827 # error HVM_MAX_VCPUS not defined
1828 #endif
1829 int main(void) {
1830   xc_interface *xc = NULL;
1831   xenforeignmemory_handle *xfmem;
1832   xenevtchn_handle *xe;
1833   xengnttab_handle *xg;
1834   xengnttab_grant_copy_segment_t* seg = NULL;
1835
1836   xs_daemon_open();
1837
1838   xc = xc_interface_open(0, 0, 0);
1839   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
1840   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
1841   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
1842   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
1843
1844   xfmem = xenforeignmemory_open(0, 0);
1845   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
1846
1847   xe = xenevtchn_open(0, 0);
1848   xenevtchn_fd(xe);
1849
1850   xg = xengnttab_open(0, 0);
1851   xengnttab_grant_copy(xg, 0, seg);
1852
1853   return 0;
1854 }
1855 EOF
1856         compile_prog "" "$xen_libs $xen_stable_libs"
1857       then
1858       xen_ctrl_version=40800
1859       xen=enabled
1860     elif
1861         cat > $TMPC <<EOF &&
1862 /*
1863  * If we have stable libs the we don't want the libxc compat
1864  * layers, regardless of what CFLAGS we may have been given.
1865  */
1866 #undef XC_WANT_COMPAT_EVTCHN_API
1867 #undef XC_WANT_COMPAT_GNTTAB_API
1868 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
1869 #include <xenctrl.h>
1870 #include <xenstore.h>
1871 #include <xenevtchn.h>
1872 #include <xengnttab.h>
1873 #include <xenforeignmemory.h>
1874 #include <stdint.h>
1875 #include <xen/hvm/hvm_info_table.h>
1876 #if !defined(HVM_MAX_VCPUS)
1877 # error HVM_MAX_VCPUS not defined
1878 #endif
1879 int main(void) {
1880   xc_interface *xc = NULL;
1881   xenforeignmemory_handle *xfmem;
1882   xenevtchn_handle *xe;
1883   xengnttab_handle *xg;
1884
1885   xs_daemon_open();
1886
1887   xc = xc_interface_open(0, 0, 0);
1888   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
1889   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
1890   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
1891   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
1892
1893   xfmem = xenforeignmemory_open(0, 0);
1894   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
1895
1896   xe = xenevtchn_open(0, 0);
1897   xenevtchn_fd(xe);
1898
1899   xg = xengnttab_open(0, 0);
1900   xengnttab_map_grant_ref(xg, 0, 0, 0);
1901
1902   return 0;
1903 }
1904 EOF
1905         compile_prog "" "$xen_libs $xen_stable_libs"
1906       then
1907       xen_ctrl_version=40701
1908       xen=enabled
1909
1910     # Xen 4.6
1911     elif
1912         cat > $TMPC <<EOF &&
1913 #include <xenctrl.h>
1914 #include <xenstore.h>
1915 #include <stdint.h>
1916 #include <xen/hvm/hvm_info_table.h>
1917 #if !defined(HVM_MAX_VCPUS)
1918 # error HVM_MAX_VCPUS not defined
1919 #endif
1920 int main(void) {
1921   xc_interface *xc;
1922   xs_daemon_open();
1923   xc = xc_interface_open(0, 0, 0);
1924   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
1925   xc_gnttab_open(NULL, 0);
1926   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
1927   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
1928   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
1929   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
1930   return 0;
1931 }
1932 EOF
1933         compile_prog "" "$xen_libs"
1934       then
1935       xen_ctrl_version=40600
1936       xen=enabled
1937
1938     # Xen 4.5
1939     elif
1940         cat > $TMPC <<EOF &&
1941 #include <xenctrl.h>
1942 #include <xenstore.h>
1943 #include <stdint.h>
1944 #include <xen/hvm/hvm_info_table.h>
1945 #if !defined(HVM_MAX_VCPUS)
1946 # error HVM_MAX_VCPUS not defined
1947 #endif
1948 int main(void) {
1949   xc_interface *xc;
1950   xs_daemon_open();
1951   xc = xc_interface_open(0, 0, 0);
1952   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
1953   xc_gnttab_open(NULL, 0);
1954   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
1955   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
1956   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
1957   return 0;
1958 }
1959 EOF
1960         compile_prog "" "$xen_libs"
1961       then
1962       xen_ctrl_version=40500
1963       xen=enabled
1964
1965     elif
1966         cat > $TMPC <<EOF &&
1967 #include <xenctrl.h>
1968 #include <xenstore.h>
1969 #include <stdint.h>
1970 #include <xen/hvm/hvm_info_table.h>
1971 #if !defined(HVM_MAX_VCPUS)
1972 # error HVM_MAX_VCPUS not defined
1973 #endif
1974 int main(void) {
1975   xc_interface *xc;
1976   xs_daemon_open();
1977   xc = xc_interface_open(0, 0, 0);
1978   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
1979   xc_gnttab_open(NULL, 0);
1980   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
1981   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
1982   return 0;
1983 }
1984 EOF
1985         compile_prog "" "$xen_libs"
1986       then
1987       xen_ctrl_version=40200
1988       xen=enabled
1989
1990     else
1991       if test "$xen" = "enabled" ; then
1992         feature_not_found "xen (unsupported version)" \
1993                           "Install a supported xen (xen 4.2 or newer)"
1994       fi
1995       xen=disabled
1996     fi
1997
1998     if test "$xen" = enabled; then
1999       if test $xen_ctrl_version -ge 40701  ; then
2000         xen_libs="$xen_libs $xen_stable_libs "
2001       fi
2002     fi
2003   fi
2004 fi
2005
2006 ##########################################
2007 # glib support probe
2008
2009 glib_req_ver=2.56
2010 glib_modules=gthread-2.0
2011 if test "$modules" = yes; then
2012     glib_modules="$glib_modules gmodule-export-2.0"
2013 elif test "$plugins" = "yes"; then
2014     glib_modules="$glib_modules gmodule-no-export-2.0"
2015 fi
2016
2017 for i in $glib_modules; do
2018     if $pkg_config --atleast-version=$glib_req_ver $i; then
2019         glib_cflags=$($pkg_config --cflags $i)
2020         glib_libs=$($pkg_config --libs $i)
2021     else
2022         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
2023     fi
2024 done
2025
2026 # This workaround is required due to a bug in pkg-config file for glib as it
2027 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
2028
2029 if test "$static" = yes && test "$mingw32" = yes; then
2030     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
2031 fi
2032
2033 # Sanity check that the current size_t matches the
2034 # size that glib thinks it should be. This catches
2035 # problems on multi-arch where people try to build
2036 # 32-bit QEMU while pointing at 64-bit glib headers
2037 cat > $TMPC <<EOF
2038 #include <glib.h>
2039 #include <unistd.h>
2040
2041 #define QEMU_BUILD_BUG_ON(x) \
2042   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
2043
2044 int main(void) {
2045    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
2046    return 0;
2047 }
2048 EOF
2049
2050 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
2051     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
2052                "You probably need to set PKG_CONFIG_LIBDIR"\
2053                "to point to the right pkg-config files for your"\
2054                "build target"
2055 fi
2056
2057 # Silence clang warnings triggered by glib < 2.57.2
2058 cat > $TMPC << EOF
2059 #include <glib.h>
2060 typedef struct Foo {
2061     int i;
2062 } Foo;
2063 static void foo_free(Foo *f)
2064 {
2065     g_free(f);
2066 }
2067 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
2068 int main(void) { return 0; }
2069 EOF
2070 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
2071     if cc_has_warning_flag "-Wno-unused-function"; then
2072         glib_cflags="$glib_cflags -Wno-unused-function"
2073         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
2074     fi
2075 fi
2076
2077 ##########################################
2078 # SHA command probe for modules
2079 if test "$modules" = yes; then
2080     shacmd_probe="sha1sum sha1 shasum"
2081     for c in $shacmd_probe; do
2082         if has $c; then
2083             shacmd="$c"
2084             break
2085         fi
2086     done
2087     if test "$shacmd" = ""; then
2088         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
2089     fi
2090 fi
2091
2092 ##########################################
2093 # fdt probe
2094
2095 case "$fdt" in
2096   auto | enabled | internal)
2097     # Simpler to always update submodule, even if not needed.
2098     git_submodules="${git_submodules} dtc"
2099     ;;
2100 esac
2101
2102 ##########################################
2103 # capstone
2104
2105 case "$capstone" in
2106   auto | enabled | internal)
2107     # Simpler to always update submodule, even if not needed.
2108     git_submodules="${git_submodules} capstone"
2109     ;;
2110 esac
2111
2112 ##########################################
2113 # check and set a backend for coroutine
2114
2115 # We prefer ucontext, but it's not always possible. The fallback
2116 # is sigcontext. On Windows the only valid backend is the Windows
2117 # specific one.
2118
2119 ucontext_works=no
2120 if test "$darwin" != "yes"; then
2121   cat > $TMPC << EOF
2122 #include <ucontext.h>
2123 #ifdef __stub_makecontext
2124 #error Ignoring glibc stub makecontext which will always fail
2125 #endif
2126 int main(void) { makecontext(0, 0, 0); return 0; }
2127 EOF
2128   if compile_prog "" "" ; then
2129     ucontext_works=yes
2130   fi
2131 fi
2132
2133 if test "$coroutine" = ""; then
2134   if test "$mingw32" = "yes"; then
2135     coroutine=win32
2136   elif test "$ucontext_works" = "yes"; then
2137     coroutine=ucontext
2138   else
2139     coroutine=sigaltstack
2140   fi
2141 else
2142   case $coroutine in
2143   windows)
2144     if test "$mingw32" != "yes"; then
2145       error_exit "'windows' coroutine backend only valid for Windows"
2146     fi
2147     # Unfortunately the user visible backend name doesn't match the
2148     # coroutine-*.c filename for this case, so we have to adjust it here.
2149     coroutine=win32
2150     ;;
2151   ucontext)
2152     if test "$ucontext_works" != "yes"; then
2153       feature_not_found "ucontext"
2154     fi
2155     ;;
2156   sigaltstack)
2157     if test "$mingw32" = "yes"; then
2158       error_exit "only the 'windows' coroutine backend is valid for Windows"
2159     fi
2160     ;;
2161   *)
2162     error_exit "unknown coroutine backend $coroutine"
2163     ;;
2164   esac
2165 fi
2166
2167 ##################################################
2168 # SafeStack
2169
2170
2171 if test "$safe_stack" = "yes"; then
2172 cat > $TMPC << EOF
2173 int main(int argc, char *argv[])
2174 {
2175 #if ! __has_feature(safe_stack)
2176 #error SafeStack Disabled
2177 #endif
2178     return 0;
2179 }
2180 EOF
2181   flag="-fsanitize=safe-stack"
2182   # Check that safe-stack is supported and enabled.
2183   if compile_prog "-Werror $flag" "$flag"; then
2184     # Flag needed both at compilation and at linking
2185     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2186     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2187   else
2188     error_exit "SafeStack not supported by your compiler"
2189   fi
2190   if test "$coroutine" != "ucontext"; then
2191     error_exit "SafeStack is only supported by the coroutine backend ucontext"
2192   fi
2193 else
2194 cat > $TMPC << EOF
2195 int main(int argc, char *argv[])
2196 {
2197 #if defined(__has_feature)
2198 #if __has_feature(safe_stack)
2199 #error SafeStack Enabled
2200 #endif
2201 #endif
2202     return 0;
2203 }
2204 EOF
2205 if test "$safe_stack" = "no"; then
2206   # Make sure that safe-stack is disabled
2207   if ! compile_prog "-Werror" ""; then
2208     # SafeStack was already enabled, try to explicitly remove the feature
2209     flag="-fno-sanitize=safe-stack"
2210     if ! compile_prog "-Werror $flag" "$flag"; then
2211       error_exit "Configure cannot disable SafeStack"
2212     fi
2213     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2214     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2215   fi
2216 else # "$safe_stack" = ""
2217   # Set safe_stack to yes or no based on pre-existing flags
2218   if compile_prog "-Werror" ""; then
2219     safe_stack="no"
2220   else
2221     safe_stack="yes"
2222     if test "$coroutine" != "ucontext"; then
2223       error_exit "SafeStack is only supported by the coroutine backend ucontext"
2224     fi
2225   fi
2226 fi
2227 fi
2228
2229 ########################################
2230 # check if ccache is interfering with
2231 # semantic analysis of macros
2232
2233 unset CCACHE_CPP2
2234 ccache_cpp2=no
2235 cat > $TMPC << EOF
2236 static const int Z = 1;
2237 #define fn() ({ Z; })
2238 #define TAUT(X) ((X) == Z)
2239 #define PAREN(X, Y) (X == Y)
2240 #define ID(X) (X)
2241 int main(int argc, char *argv[])
2242 {
2243     int x = 0, y = 0;
2244     x = ID(x);
2245     x = fn();
2246     fn();
2247     if (PAREN(x, y)) return 0;
2248     if (TAUT(Z)) return 0;
2249     return 0;
2250 }
2251 EOF
2252
2253 if ! compile_object "-Werror"; then
2254     ccache_cpp2=yes
2255 fi
2256
2257 #################################################
2258 # clang does not support glibc + FORTIFY_SOURCE.
2259
2260 if test "$fortify_source" != "no"; then
2261   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
2262     fortify_source="no";
2263   elif test -n "$cxx" && has $cxx &&
2264        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
2265     fortify_source="no";
2266   else
2267     fortify_source="yes"
2268   fi
2269 fi
2270
2271 ##########################################
2272 # checks for sanitizers
2273
2274 have_asan=no
2275 have_ubsan=no
2276 have_asan_iface_h=no
2277 have_asan_iface_fiber=no
2278
2279 if test "$sanitizers" = "yes" ; then
2280   write_c_skeleton
2281   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
2282       have_asan=yes
2283   fi
2284
2285   # we could use a simple skeleton for flags checks, but this also
2286   # detect the static linking issue of ubsan, see also:
2287   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
2288   cat > $TMPC << EOF
2289 #include <stdlib.h>
2290 int main(void) {
2291     void *tmp = malloc(10);
2292     if (tmp != NULL) {
2293         return *(int *)(tmp + 2);
2294     }
2295     return 1;
2296 }
2297 EOF
2298   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
2299       have_ubsan=yes
2300   fi
2301
2302   if check_include "sanitizer/asan_interface.h" ; then
2303       have_asan_iface_h=yes
2304   fi
2305
2306   cat > $TMPC << EOF
2307 #include <sanitizer/asan_interface.h>
2308 int main(void) {
2309   __sanitizer_start_switch_fiber(0, 0, 0);
2310   return 0;
2311 }
2312 EOF
2313   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
2314       have_asan_iface_fiber=yes
2315   fi
2316 fi
2317
2318 # Thread sanitizer is, for now, much noisier than the other sanitizers;
2319 # keep it separate until that is not the case.
2320 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
2321   error_exit "TSAN is not supported with other sanitiziers."
2322 fi
2323 have_tsan=no
2324 have_tsan_iface_fiber=no
2325 if test "$tsan" = "yes" ; then
2326   write_c_skeleton
2327   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
2328       have_tsan=yes
2329   fi
2330   cat > $TMPC << EOF
2331 #include <sanitizer/tsan_interface.h>
2332 int main(void) {
2333   __tsan_create_fiber(0);
2334   return 0;
2335 }
2336 EOF
2337   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
2338       have_tsan_iface_fiber=yes
2339   fi
2340 fi
2341
2342 ##########################################
2343 # check for slirp
2344
2345 case "$slirp" in
2346   auto | enabled | internal)
2347     # Simpler to always update submodule, even if not needed.
2348     git_submodules="${git_submodules} slirp"
2349     ;;
2350 esac
2351
2352 ##########################################
2353 # End of CC checks
2354 # After here, no more $cc or $ld runs
2355
2356 write_c_skeleton
2357
2358 if test "$fortify_source" = "yes" ; then
2359   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2360   debug=no
2361 fi
2362
2363 case "$ARCH" in
2364 alpha)
2365   # Ensure there's only a single GP
2366   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
2367 ;;
2368 esac
2369
2370 if test "$have_asan" = "yes"; then
2371   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2372   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2373   if test "$have_asan_iface_h" = "no" ; then
2374       echo "ASAN build enabled, but ASAN header missing." \
2375            "Without code annotation, the report may be inferior."
2376   elif test "$have_asan_iface_fiber" = "no" ; then
2377       echo "ASAN build enabled, but ASAN header is too old." \
2378            "Without code annotation, the report may be inferior."
2379   fi
2380 fi
2381 if test "$have_tsan" = "yes" ; then
2382   if test "$have_tsan_iface_fiber" = "yes" ; then
2383     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2384     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2385   else
2386     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2387   fi
2388 elif test "$tsan" = "yes" ; then
2389   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2390 fi
2391 if test "$have_ubsan" = "yes"; then
2392   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2393   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2394 fi
2395
2396 ##########################################
2397
2398 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
2399 if test "$solaris" = "no" && test "$tsan" = "no"; then
2400     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
2401         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
2402     fi
2403 fi
2404
2405 # Use ASLR, no-SEH and DEP if available
2406 if test "$mingw32" = "yes" ; then
2407     flags="--no-seh --nxcompat"
2408
2409     # Disable ASLR for debug builds to allow debugging with gdb
2410     if test "$debug" = "no" ; then
2411         flags="--dynamicbase $flags"
2412     fi
2413
2414     for flag in $flags; do
2415         if ld_has $flag ; then
2416             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
2417         fi
2418     done
2419 fi
2420
2421 # Guest agent Windows MSI package
2422
2423 if test "$QEMU_GA_MANUFACTURER" = ""; then
2424   QEMU_GA_MANUFACTURER=QEMU
2425 fi
2426 if test "$QEMU_GA_DISTRO" = ""; then
2427   QEMU_GA_DISTRO=Linux
2428 fi
2429 if test "$QEMU_GA_VERSION" = ""; then
2430     QEMU_GA_VERSION=$(cat $source_path/VERSION)
2431 fi
2432
2433 QEMU_GA_MSI_MINGW_BIN_PATH="$($pkg_config --variable=prefix glib-2.0)/bin"
2434
2435 # Mac OS X ships with a broken assembler
2436 roms=
2437 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
2438         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2439         test "$targetos" != "haiku" && test "$softmmu" = yes ; then
2440     # Different host OS linkers have different ideas about the name of the ELF
2441     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
2442     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
2443     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
2444         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
2445             ld_i386_emulation="$emu"
2446             roms="optionrom"
2447             break
2448         fi
2449     done
2450 fi
2451
2452 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
2453 # or -march=z10 (which is the lowest architecture level that Clang supports)
2454 if test "$cpu" = "s390x" ; then
2455   write_c_skeleton
2456   compile_prog "-march=z900" ""
2457   has_z900=$?
2458   if [ $has_z900 = 0 ] || compile_object "-march=z10 -msoft-float -Werror"; then
2459     if [ $has_z900 != 0 ]; then
2460       echo "WARNING: Your compiler does not support the z900!"
2461       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2462     fi
2463     roms="$roms s390-ccw"
2464     # SLOF is required for building the s390-ccw firmware on s390x,
2465     # since it is using the libnet code from SLOF for network booting.
2466     git_submodules="${git_submodules} roms/SLOF"
2467   fi
2468 fi
2469
2470 # Check that the C++ compiler exists and works with the C compiler.
2471 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
2472 if has $cxx; then
2473     cat > $TMPC <<EOF
2474 int c_function(void);
2475 int main(void) { return c_function(); }
2476 EOF
2477
2478     compile_object
2479
2480     cat > $TMPCXX <<EOF
2481 extern "C" {
2482    int c_function(void);
2483 }
2484 int c_function(void) { return 42; }
2485 EOF
2486
2487     update_cxxflags
2488
2489     if do_cxx $CXXFLAGS $EXTRA_CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
2490         # C++ compiler $cxx works ok with C compiler $cc
2491         :
2492     else
2493         echo "C++ compiler $cxx does not work with C compiler $cc"
2494         echo "Disabling C++ specific optional code"
2495         cxx=
2496     fi
2497 else
2498     echo "No C++ compiler available; disabling C++ specific optional code"
2499     cxx=
2500 fi
2501
2502 if !(GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2503     exit 1
2504 fi
2505
2506 config_host_mak="config-host.mak"
2507
2508 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2509 echo >> $config_host_mak
2510
2511 echo all: >> $config_host_mak
2512 echo "GIT=$git" >> $config_host_mak
2513 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2514 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2515
2516 if test "$debug_tcg" = "yes" ; then
2517   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2518 fi
2519 if test "$mingw32" = "yes" ; then
2520   echo "CONFIG_WIN32=y" >> $config_host_mak
2521   echo "QEMU_GA_MSI_MINGW_BIN_PATH=${QEMU_GA_MSI_MINGW_BIN_PATH}" >> $config_host_mak
2522   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
2523   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
2524   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
2525 else
2526   echo "CONFIG_POSIX=y" >> $config_host_mak
2527 fi
2528
2529 if test "$linux" = "yes" ; then
2530   echo "CONFIG_LINUX=y" >> $config_host_mak
2531 fi
2532
2533 if test "$darwin" = "yes" ; then
2534   echo "CONFIG_DARWIN=y" >> $config_host_mak
2535 fi
2536
2537 if test "$solaris" = "yes" ; then
2538   echo "CONFIG_SOLARIS=y" >> $config_host_mak
2539 fi
2540 if test "$static" = "yes" ; then
2541   echo "CONFIG_STATIC=y" >> $config_host_mak
2542 fi
2543 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
2544 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
2545 qemu_version=$(head $source_path/VERSION)
2546 echo "PKGVERSION=$pkgversion" >>$config_host_mak
2547 echo "SRC_PATH=$source_path" >> $config_host_mak
2548 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2549 if test "$modules" = "yes"; then
2550   # $shacmd can generate a hash started with digit, which the compiler doesn't
2551   # like as an symbol. So prefix it with an underscore
2552   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
2553   echo "CONFIG_MODULES=y" >> $config_host_mak
2554 fi
2555 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
2556
2557 if test "$xen" = "enabled" ; then
2558   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
2559   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
2560   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
2561   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
2562 fi
2563 if test "$vhost_scsi" = "yes" ; then
2564   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
2565 fi
2566 if test "$vhost_net" = "yes" ; then
2567   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
2568 fi
2569 if test "$vhost_net_user" = "yes" ; then
2570   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
2571 fi
2572 if test "$vhost_net_vdpa" = "yes" ; then
2573   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
2574 fi
2575 if test "$vhost_crypto" = "yes" ; then
2576   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
2577 fi
2578 if test "$vhost_vsock" = "yes" ; then
2579   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
2580   if test "$vhost_user" = "yes" ; then
2581     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
2582   fi
2583 fi
2584 if test "$vhost_kernel" = "yes" ; then
2585   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
2586 fi
2587 if test "$vhost_user" = "yes" ; then
2588   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
2589 fi
2590 if test "$vhost_vdpa" = "yes" ; then
2591   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
2592 fi
2593 if test "$vhost_user_fs" = "yes" ; then
2594   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
2595 fi
2596
2597 # XXX: suppress that
2598 if [ "$bsd" = "yes" ] ; then
2599   echo "CONFIG_BSD=y" >> $config_host_mak
2600 fi
2601
2602 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2603
2604 if test "$have_asan_iface_fiber" = "yes" ; then
2605     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2606 fi
2607
2608 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2609     echo "CONFIG_TSAN=y" >> $config_host_mak
2610 fi
2611
2612 if test "$plugins" = "yes" ; then
2613     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2614 fi
2615
2616 if test -n "$gdb_bin"; then
2617     gdb_version=$($gdb_bin --version | head -n 1)
2618     if version_ge ${gdb_version##* } 9.1; then
2619         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2620     fi
2621 fi
2622
2623 echo "ROMS=$roms" >> $config_host_mak
2624 echo "MAKE=$make" >> $config_host_mak
2625 echo "PYTHON=$python" >> $config_host_mak
2626 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2627 echo "MESON=$meson" >> $config_host_mak
2628 echo "NINJA=$ninja" >> $config_host_mak
2629 echo "CC=$cc" >> $config_host_mak
2630 echo "AR=$ar" >> $config_host_mak
2631 echo "AS=$as" >> $config_host_mak
2632 echo "CCAS=$ccas" >> $config_host_mak
2633 echo "CPP=$cpp" >> $config_host_mak
2634 echo "OBJCOPY=$objcopy" >> $config_host_mak
2635 echo "LD=$ld" >> $config_host_mak
2636 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
2637 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2638 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
2639 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2640 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2641 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2642 echo "GLIB_VERSION=$(pkg-config --modversion glib-2.0)" >> $config_host_mak
2643 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2644 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
2645 echo "STRIP=$strip" >> $config_host_mak
2646 echo "EXESUF=$EXESUF" >> $config_host_mak
2647
2648 # use included Linux headers
2649 if test "$linux" = "yes" ; then
2650   mkdir -p linux-headers
2651   case "$cpu" in
2652   i386|x86_64)
2653     linux_arch=x86
2654     ;;
2655   ppc|ppc64)
2656     linux_arch=powerpc
2657     ;;
2658   s390x)
2659     linux_arch=s390
2660     ;;
2661   aarch64)
2662     linux_arch=arm64
2663     ;;
2664   loongarch*)
2665     linux_arch=loongarch
2666     ;;
2667   mips64)
2668     linux_arch=mips
2669     ;;
2670   *)
2671     # For most CPUs the kernel architecture name and QEMU CPU name match.
2672     linux_arch="$cpu"
2673     ;;
2674   esac
2675     # For non-KVM architectures we will not have asm headers
2676     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2677       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2678     fi
2679 fi
2680
2681 for target in $target_list; do
2682     target_dir="$target"
2683     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2684     mkdir -p $target_dir
2685     case $target in
2686         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2687         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2688     esac
2689 done
2690
2691 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
2692 if test "$default_targets" = "yes"; then
2693   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2694 fi
2695
2696 if test "$ccache_cpp2" = "yes"; then
2697   echo "export CCACHE_CPP2=y" >> $config_host_mak
2698 fi
2699
2700 if test "$safe_stack" = "yes"; then
2701   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
2702 fi
2703
2704 # If we're using a separate build tree, set it up now.
2705 # LINKS are things to symlink back into the source tree
2706 # (these can be both files and directories).
2707 # Caution: do not add files or directories here using wildcards. This
2708 # will result in problems later if a new file matching the wildcard is
2709 # added to the source tree -- nothing will cause configure to be rerun
2710 # so the build tree will be missing the link back to the new file, and
2711 # tests might fail. Prefer to keep the relevant files in their own
2712 # directory and symlink the directory instead.
2713 LINKS="Makefile"
2714 LINKS="$LINKS tests/tcg/Makefile.target"
2715 LINKS="$LINKS pc-bios/optionrom/Makefile"
2716 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
2717 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
2718 LINKS="$LINKS tests/avocado tests/data"
2719 LINKS="$LINKS tests/qemu-iotests/check"
2720 LINKS="$LINKS python"
2721 LINKS="$LINKS contrib/plugins/Makefile "
2722 for bios_file in \
2723     $source_path/pc-bios/*.bin \
2724     $source_path/pc-bios/*.elf \
2725     $source_path/pc-bios/*.lid \
2726     $source_path/pc-bios/*.rom \
2727     $source_path/pc-bios/*.dtb \
2728     $source_path/pc-bios/*.img \
2729     $source_path/pc-bios/openbios-* \
2730     $source_path/pc-bios/u-boot.* \
2731     $source_path/pc-bios/palcode-* \
2732     $source_path/pc-bios/qemu_vga.ndrv
2733
2734 do
2735     LINKS="$LINKS pc-bios/$(basename $bios_file)"
2736 done
2737 for f in $LINKS ; do
2738     if [ -e "$source_path/$f" ]; then
2739         mkdir -p `dirname ./$f`
2740         symlink "$source_path/$f" "$f"
2741     fi
2742 done
2743
2744 (for i in $cross_cc_vars; do
2745   export $i
2746 done
2747 export target_list source_path use_containers cpu host_cc
2748 $source_path/tests/tcg/configure.sh)
2749
2750 config_mak=pc-bios/optionrom/config.mak
2751 echo "# Automatically generated by configure - do not modify" > $config_mak
2752 echo "TOPSRC_DIR=$source_path" >> $config_mak
2753
2754 if test "$skip_meson" = no; then
2755   cross="config-meson.cross.new"
2756   meson_quote() {
2757     test $# = 0 && return
2758     echo "'$(echo $* | sed "s/ /','/g")'"
2759   }
2760
2761   echo "# Automatically generated by configure - do not modify" > $cross
2762   echo "[properties]" >> $cross
2763
2764   # unroll any custom device configs
2765   for a in $device_archs; do
2766       eval "c=\$devices_${a}"
2767       echo "${a}-softmmu = '$c'" >> $cross
2768   done
2769
2770   test -z "$cxx" && echo "link_language = 'c'" >> $cross
2771   echo "[built-in options]" >> $cross
2772   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2773   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2774   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2775   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2776   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2777   echo "[binaries]" >> $cross
2778   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2779   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2780   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2781   echo "ar = [$(meson_quote $ar)]" >> $cross
2782   echo "nm = [$(meson_quote $nm)]" >> $cross
2783   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
2784   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2785   if has $sdl2_config; then
2786     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2787   fi
2788   echo "strip = [$(meson_quote $strip)]" >> $cross
2789   echo "windres = [$(meson_quote $windres)]" >> $cross
2790   if test "$cross_compile" = "yes"; then
2791     cross_arg="--cross-file config-meson.cross"
2792     echo "[host_machine]" >> $cross
2793     echo "system = '$targetos'" >> $cross
2794     case "$cpu" in
2795         i386)
2796             echo "cpu_family = 'x86'" >> $cross
2797             ;;
2798         *)
2799             echo "cpu_family = '$cpu'" >> $cross
2800             ;;
2801     esac
2802     echo "cpu = '$cpu'" >> $cross
2803     if test "$bigendian" = "yes" ; then
2804         echo "endian = 'big'" >> $cross
2805     else
2806         echo "endian = 'little'" >> $cross
2807     fi
2808   else
2809     cross_arg="--native-file config-meson.cross"
2810   fi
2811   mv $cross config-meson.cross
2812
2813   rm -rf meson-private meson-info meson-logs
2814   run_meson() {
2815     NINJA=$ninja $meson setup \
2816         --prefix "$prefix" \
2817         --libdir "$libdir" \
2818         --libexecdir "$libexecdir" \
2819         --bindir "$bindir" \
2820         --includedir "$includedir" \
2821         --datadir "$datadir" \
2822         --mandir "$mandir" \
2823         --sysconfdir "$sysconfdir" \
2824         --localedir "$localedir" \
2825         --localstatedir "$local_statedir" \
2826         -Daudio_drv_list=$audio_drv_list \
2827         -Ddefault_devices=$default_devices \
2828         -Ddocdir="$docdir" \
2829         -Diasl="$($iasl -h >/dev/null 2>&1 && printf %s "$iasl")" \
2830         -Dqemu_firmwarepath="$firmwarepath" \
2831         -Dqemu_suffix="$qemu_suffix" \
2832         -Dsmbd="$smbd" \
2833         -Dsphinx_build="$sphinx_build" \
2834         -Dtrace_file="$trace_file" \
2835         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
2836         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
2837         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
2838         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
2839         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
2840         -Db_lto=$lto -Dcfi=$cfi -Dtcg=$tcg -Dxen=$xen \
2841         -Dcapstone=$capstone -Dfdt=$fdt -Dslirp=$slirp \
2842         $(test -n "${LIB_FUZZING_ENGINE+xxx}" && echo "-Dfuzzing_engine=$LIB_FUZZING_ENGINE") \
2843         $(if test "$default_feature" = no; then echo "-Dauto_features=disabled"; fi) \
2844         "$@" $cross_arg "$PWD" "$source_path"
2845   }
2846   eval run_meson $meson_options
2847   if test "$?" -ne 0 ; then
2848       error_exit "meson setup failed"
2849   fi
2850 else
2851   if test -f meson-private/cmd_line.txt; then
2852     # Adjust old command line options whose type was changed
2853     # Avoids having to use "setup --wipe" when Meson is upgraded
2854     perl -i -ne '
2855       s/^gettext = true$/gettext = auto/;
2856       s/^gettext = false$/gettext = disabled/;
2857       /^b_staticpic/ && next;
2858       print;' meson-private/cmd_line.txt
2859   fi
2860 fi
2861
2862 # Save the configure command line for later reuse.
2863 cat <<EOD >config.status
2864 #!/bin/sh
2865 # Generated by configure.
2866 # Run this file to recreate the current configuration.
2867 # Compiler output produced by configure, useful for debugging
2868 # configure, is in config.log if it exists.
2869 EOD
2870
2871 preserve_env() {
2872     envname=$1
2873
2874     eval envval=\$$envname
2875
2876     if test -n "$envval"
2877     then
2878         echo "$envname='$envval'" >> config.status
2879         echo "export $envname" >> config.status
2880     else
2881         echo "unset $envname" >> config.status
2882     fi
2883 }
2884
2885 # Preserve various env variables that influence what
2886 # features/build target configure will detect
2887 preserve_env AR
2888 preserve_env AS
2889 preserve_env CC
2890 preserve_env CPP
2891 preserve_env CFLAGS
2892 preserve_env CXX
2893 preserve_env CXXFLAGS
2894 preserve_env INSTALL
2895 preserve_env LD
2896 preserve_env LDFLAGS
2897 preserve_env LD_LIBRARY_PATH
2898 preserve_env LIBTOOL
2899 preserve_env MAKE
2900 preserve_env NM
2901 preserve_env OBJCOPY
2902 preserve_env PATH
2903 preserve_env PKG_CONFIG
2904 preserve_env PKG_CONFIG_LIBDIR
2905 preserve_env PKG_CONFIG_PATH
2906 preserve_env PYTHON
2907 preserve_env SDL2_CONFIG
2908 preserve_env SMBD
2909 preserve_env STRIP
2910 preserve_env WINDRES
2911
2912 printf "exec" >>config.status
2913 for i in "$0" "$@"; do
2914   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2915 done
2916 echo ' "$@"' >>config.status
2917 chmod +x config.status
2918
2919 rm -r "$TMPDIR1"