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" "$PWD" | grep -q "[[:space:]:]";
 232 then
 233   error_exit "main directory cannot contain spaces nor colons"
 234 fi
 235
 236 # default parameters
 237 cpu=""
 238 iasl="iasl"
 239 interp_prefix="/usr/gnemul/qemu-%M"
 240 static="no"
 241 cross_compile="no"
 242 cross_prefix=""
 243 audio_drv_list="default"
 244 block_drv_rw_whitelist=""
 245 block_drv_ro_whitelist=""
 246 host_cc="cc"
 247 debug_info="yes"
 248 lto="false"
 249 stack_protector=""
 250 safe_stack=""
 251 use_containers="yes"
 252 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 253
 254 if test -e "$source_path/.git"
 255 then
 256     git_submodules_action="update"
 257 else
 258     git_submodules_action="ignore"
 259 fi
 260
 261 git_submodules="ui/keycodemapdb"
 262 git="git"
 263
 264 # Don't accept a target_list environment variable.
 265 unset target_list
 266 unset target_list_exclude
 267
 268 # Default value for a variable defining feature "foo".
 269 #  * foo="no"  feature will only be used if --enable-foo arg is given
 270 #  * foo=""    feature will be searched for, and if found, will be used
 271 #              unless --disable-foo is given
 272 #  * foo="yes" this value will only be set by --enable-foo flag.
 273 #              feature will searched for,
 274 #              if not found, configure exits with error
 275 #
 276 # Always add --enable-foo and --disable-foo command line args.
 277 # Distributions want to ensure that several features are compiled in, and it
 278 # is impossible without a --enable-foo that exits if a feature is not found.
 279
 280 default_feature=""
 281 # parse CC options second
 282 for opt do
 283   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 284   case "$opt" in
 285       --without-default-features)
 286           default_feature="no"
 287   ;;
 288   esac
 289 done
 290
 291 EXTRA_CFLAGS=""
 292 EXTRA_CXXFLAGS=""
 293 EXTRA_OBJCFLAGS=""
 294 EXTRA_LDFLAGS=""
 295
 296 xen_ctrl_version="$default_feature"
 297 vhost_kernel="$default_feature"
 298 vhost_net="$default_feature"
 299 vhost_crypto="$default_feature"
 300 vhost_scsi="$default_feature"
 301 vhost_vsock="$default_feature"
 302 vhost_user="no"
 303 vhost_user_fs="$default_feature"
 304 vhost_vdpa="$default_feature"
 305 rdma="$default_feature"
 306 pvrdma="$default_feature"
 307 debug_tcg="no"
 308 debug="no"
 309 sanitizers="no"
 310 tsan="no"
 311 fortify_source="$default_feature"
 312 gcov="no"
 313 EXESUF=""
 314 modules="no"
 315 module_upgrades="no"
 316 prefix="/usr/local"
 317 qemu_suffix="qemu"
 318 softmmu="yes"
 319 linux_user=""
 320 bsd_user=""
 321 pkgversion=""
 322 pie=""
 323 trace_backends="log"
 324 trace_file="trace"
 325 opengl="$default_feature"
 326 coroutine=""
 327 tls_priority="NORMAL"
 328 plugins="$default_feature"
 329 secret_keyring="$default_feature"
 330 meson=""
 331 meson_args=""
 332 ninja=""
 333 gio="$default_feature"
 334 skip_meson=no
 335
 336 # The following Meson options are handled manually (still they
 337 # are included in the automatically generated help message)
 338
 339 # 1. Track which submodules are needed
 340 if test "$default_feature" = no ; then
 341   capstone="disabled"
 342   slirp="disabled"
 343 else
 344   capstone="auto"
 345   slirp="auto"
 346 fi
 347 fdt="auto"
 348
 349 # 2. Support --with/--without option
 350 default_devices="true"
 351
 352 # 3. Automatically enable/disable other options
 353 tcg="enabled"
 354 cfi="false"
 355
 356 # 4. Detection partly done in configure
 357 xen=${default_feature:+disabled}
 358
 359 # parse CC options second
 360 for opt do
 361   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 362   case "$opt" in
 363   --cross-prefix=*) cross_prefix="$optarg"
 364                     cross_compile="yes"
 365   ;;
 366   --cc=*) CC="$optarg"
 367   ;;
 368   --cxx=*) CXX="$optarg"
 369   ;;
 370   --cpu=*) cpu="$optarg"
 371   ;;
 372   --extra-cflags=*)
 373     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 374     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 375     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 376     ;;
 377   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 378   ;;
 379   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 380   ;;
 381   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 382   ;;
 383   --enable-debug-info) debug_info="yes"
 384   ;;
 385   --disable-debug-info) debug_info="no"
 386   ;;
 387   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 388   ;;
 389   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 390                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 391                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 392   ;;
 393   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 394                 cc_archs="$cc_archs $cc_arch"
 395                 eval "cross_cc_${cc_arch}=\$optarg"
 396                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 397   ;;
 398   esac
 399 done
 400 # OS specific
 401 # Using uname is really, really broken.  Once we have the right set of checks
 402 # we can eliminate its usage altogether.
 403
 404 # Preferred compiler:
 405 #  ${CC} (if set)
 406 #  ${cross_prefix}gcc (if cross-prefix specified)
 407 #  system compiler
 408 if test -z "${CC}${cross_prefix}"; then
 409   cc="$host_cc"
 410 else
 411   cc="${CC-${cross_prefix}gcc}"
 412 fi
 413
 414 if test -z "${CXX}${cross_prefix}"; then
 415   cxx="c++"
 416 else
 417   cxx="${CXX-${cross_prefix}g++}"
 418 fi
 419
 420 ar="${AR-${cross_prefix}ar}"
 421 as="${AS-${cross_prefix}as}"
 422 ccas="${CCAS-$cc}"
 423 cpp="${CPP-$cc -E}"
 424 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 425 ld="${LD-${cross_prefix}ld}"
 426 ranlib="${RANLIB-${cross_prefix}ranlib}"
 427 nm="${NM-${cross_prefix}nm}"
 428 smbd="$SMBD"
 429 strip="${STRIP-${cross_prefix}strip}"
 430 windres="${WINDRES-${cross_prefix}windres}"
 431 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 432 query_pkg_config() {
 433     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 434 }
 435 pkg_config=query_pkg_config
 436 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 437
 438 # default flags for all hosts
 439 # We use -fwrapv to tell the compiler that we require a C dialect where
 440 # left shift of signed integers is well defined and has the expected
 441 # 2s-complement style results. (Both clang and gcc agree that it
 442 # provides these semantics.)
 443 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 444 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 445 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 446 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 447
 448 QEMU_LDFLAGS=
 449
 450 # Flags that are needed during configure but later taken care of by Meson
 451 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 452 CONFIGURE_LDFLAGS=
 453
 454
 455 check_define() {
 456 cat > $TMPC <<EOF
 457 #if !defined($1)
 458 #error $1 not defined
 459 #endif
 460 int main(void) { return 0; }
 461 EOF
 462   compile_object
 463 }
 464
 465 check_include() {
 466 cat > $TMPC <<EOF
 467 #include <$1>
 468 int main(void) { return 0; }
 469 EOF
 470   compile_object
 471 }
 472
 473 write_c_skeleton() {
 474     cat > $TMPC <<EOF
 475 int main(void) { return 0; }
 476 EOF
 477 }
 478
 479 if check_define __linux__ ; then
 480   targetos=linux
 481 elif check_define _WIN32 ; then
 482   targetos=windows
 483 elif check_define __OpenBSD__ ; then
 484   targetos=openbsd
 485 elif check_define __sun__ ; then
 486   targetos=sunos
 487 elif check_define __HAIKU__ ; then
 488   targetos=haiku
 489 elif check_define __FreeBSD__ ; then
 490   targetos=freebsd
 491 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 492   targetos=gnu/kfreebsd
 493 elif check_define __DragonFly__ ; then
 494   targetos=dragonfly
 495 elif check_define __NetBSD__; then
 496   targetos=netbsd
 497 elif check_define __APPLE__; then
 498   targetos=darwin
 499 else
 500   # This is a fatal error, but don't report it yet, because we
 501   # might be going to just print the --help text, or it might
 502   # be the result of a missing compiler.
 503   targetos=bogus
 504 fi
 505
 506 # OS specific
 507
 508 mingw32="no"
 509 bsd="no"
 510 linux="no"
 511 solaris="no"
 512 case $targetos in
 513 windows)
 514   mingw32="yes"
 515   plugins="no"
 516   pie="no"
 517 ;;
 518 gnu/kfreebsd)
 519   bsd="yes"
 520 ;;
 521 freebsd)
 522   bsd="yes"
 523   make="${MAKE-gmake}"
 524   # needed for kinfo_getvmmap(3) in libutil.h
 525 ;;
 526 dragonfly)
 527   bsd="yes"
 528   make="${MAKE-gmake}"
 529 ;;
 530 netbsd)
 531   bsd="yes"
 532   make="${MAKE-gmake}"
 533 ;;
 534 openbsd)
 535   bsd="yes"
 536   make="${MAKE-gmake}"
 537 ;;
 538 darwin)
 539   bsd="yes"
 540   darwin="yes"
 541   # Disable attempts to use ObjectiveC features in os/object.h since they
 542   # won't work when we're compiling with gcc as a C compiler.
 543   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 544 ;;
 545 sunos)
 546   solaris="yes"
 547   make="${MAKE-gmake}"
 548 # needed for CMSG_ macros in sys/socket.h
 549   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 550 # needed for TIOCWIN* defines in termios.h
 551   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 552   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 553   # Note that this check is broken for cross-compilation: if you're
 554   # cross-compiling to one of these OSes then you'll need to specify
 555   # the correct CPU with the --cpu option.
 556   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 557     cpu="x86_64"
 558   fi
 559 ;;
 560 haiku)
 561   pie="no"
 562   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 563 ;;
 564 linux)
 565   linux="yes"
 566   vhost_user=${default_feature:-yes}
 567 ;;
 568 esac
 569
 570 if test ! -z "$cpu" ; then
 571   # command line argument
 572   :
 573 elif check_define __i386__ ; then
 574   cpu="i386"
 575 elif check_define __x86_64__ ; then
 576   if check_define __ILP32__ ; then
 577     cpu="x32"
 578   else
 579     cpu="x86_64"
 580   fi
 581 elif check_define __sparc__ ; then
 582   if check_define __arch64__ ; then
 583     cpu="sparc64"
 584   else
 585     cpu="sparc"
 586   fi
 587 elif check_define _ARCH_PPC ; then
 588   if check_define _ARCH_PPC64 ; then
 589     if check_define _LITTLE_ENDIAN ; then
 590       cpu="ppc64le"
 591     else
 592       cpu="ppc64"
 593     fi
 594   else
 595     cpu="ppc"
 596   fi
 597 elif check_define __mips__ ; then
 598   cpu="mips"
 599 elif check_define __s390__ ; then
 600   if check_define __s390x__ ; then
 601     cpu="s390x"
 602   else
 603     cpu="s390"
 604   fi
 605 elif check_define __riscv ; then
 606   cpu="riscv"
 607 elif check_define __arm__ ; then
 608   cpu="arm"
 609 elif check_define __aarch64__ ; then
 610   cpu="aarch64"
 611 elif check_define __loongarch64 ; then
 612   cpu="loongarch64"
 613 else
 614   cpu=$(uname -m)
 615 fi
 616
 617 # Normalise host CPU name, set multilib cflags
 618 # Note that this case should only have supported host CPUs, not guests.
 619 case "$cpu" in
 620   armv*b|armv*l|arm)
 621     cpu="arm" ;;
 622
 623   i386|i486|i586|i686|i86pc|BePC)
 624     cpu="i386"
 625     CPU_CFLAGS="-m32" ;;
 626   x32)
 627     cpu="x86_64"
 628     CPU_CFLAGS="-mx32" ;;
 629   x86_64|amd64)
 630     cpu="x86_64"
 631     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 632     # If we truly care, we should simply detect this case at
 633     # runtime and generate the fallback to serial emulation.
 634     CPU_CFLAGS="-m64 -mcx16" ;;
 635
 636   mips*)
 637     cpu="mips" ;;
 638
 639   ppc)
 640     CPU_CFLAGS="-m32" ;;
 641   ppc64)
 642     CPU_CFLAGS="-m64 -mbig-endian" ;;
 643   ppc64le)
 644     cpu="ppc64"
 645     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 646
 647   s390)
 648     CPU_CFLAGS="-m31" ;;
 649   s390x)
 650     CPU_CFLAGS="-m64" ;;
 651
 652   sparc|sun4[cdmuv])
 653     cpu="sparc"
 654     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 655   sparc64)
 656     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 657 esac
 658
 659 : ${make=${MAKE-make}}
 660
 661 # We prefer python 3.x. A bare 'python' is traditionally
 662 # python 2.x, but some distros have it as python 3.x, so
 663 # we check that too
 664 python=
 665 explicit_python=no
 666 for binary in "${PYTHON-python3}" python
 667 do
 668     if has "$binary"
 669     then
 670         python=$(command -v "$binary")
 671         break
 672     fi
 673 done
 674
 675
 676 # Check for ancillary tools used in testing
 677 genisoimage=
 678 for binary in genisoimage mkisofs
 679 do
 680     if has $binary
 681     then
 682         genisoimage=$(command -v "$binary")
 683         break
 684     fi
 685 done
 686
 687 # Default objcc to clang if available, otherwise use CC
 688 if has clang; then
 689   objcc=clang
 690 else
 691   objcc="$cc"
 692 fi
 693
 694 if test "$mingw32" = "yes" ; then
 695   EXESUF=".exe"
 696   # MinGW needs -mthreads for TLS and macro _MT.
 697   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 698   write_c_skeleton;
 699   prefix="/qemu"
 700   qemu_suffix=""
 701 fi
 702
 703 werror=""
 704
 705 . $source_path/scripts/meson-buildoptions.sh
 706
 707 meson_options=
 708 meson_option_parse() {
 709   meson_options="$meson_options $(_meson_option_parse "$@")"
 710   if test $? -eq 1; then
 711     echo "ERROR: unknown option $1"
 712     echo "Try '$0 --help' for more information"
 713     exit 1
 714   fi
 715 }
 716
 717 for opt do
 718   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 719   case "$opt" in
 720   --help|-h) show_help=yes
 721   ;;
 722   --version|-V) exec cat $source_path/VERSION
 723   ;;
 724   --prefix=*) prefix="$optarg"
 725   ;;
 726   --interp-prefix=*) interp_prefix="$optarg"
 727   ;;
 728   --cross-prefix=*)
 729   ;;
 730   --cc=*)
 731   ;;
 732   --host-cc=*) host_cc="$optarg"
 733   ;;
 734   --cxx=*)
 735   ;;
 736   --iasl=*) iasl="$optarg"
 737   ;;
 738   --objcc=*) objcc="$optarg"
 739   ;;
 740   --make=*) make="$optarg"
 741   ;;
 742   --install=*)
 743   ;;
 744   --python=*) python="$optarg" ; explicit_python=yes
 745   ;;
 746   --sphinx-build=*) sphinx_build="$optarg"
 747   ;;
 748   --skip-meson) skip_meson=yes
 749   ;;
 750   --meson=*) meson="$optarg"
 751   ;;
 752   --ninja=*) ninja="$optarg"
 753   ;;
 754   --smbd=*) smbd="$optarg"
 755   ;;
 756   --extra-cflags=*)
 757   ;;
 758   --extra-cxxflags=*)
 759   ;;
 760   --extra-objcflags=*)
 761   ;;
 762   --extra-ldflags=*)
 763   ;;
 764   --enable-debug-info)
 765   ;;
 766   --disable-debug-info)
 767   ;;
 768   --cross-cc-*)
 769   ;;
 770   --enable-modules)
 771       modules="yes"
 772   ;;
 773   --disable-modules)
 774       modules="no"
 775   ;;
 776   --disable-module-upgrades) module_upgrades="no"
 777   ;;
 778   --enable-module-upgrades) module_upgrades="yes"
 779   ;;
 780   --cpu=*)
 781   ;;
 782   --target-list=*) target_list="$optarg"
 783                    if test "$target_list_exclude"; then
 784                        error_exit "Can't mix --target-list with --target-list-exclude"
 785                    fi
 786   ;;
 787   --target-list-exclude=*) target_list_exclude="$optarg"
 788                    if test "$target_list"; then
 789                        error_exit "Can't mix --target-list-exclude with --target-list"
 790                    fi
 791   ;;
 792   --with-trace-file=*) trace_file="$optarg"
 793   ;;
 794   --with-default-devices) default_devices="true"
 795   ;;
 796   --without-default-devices) default_devices="false"
 797   ;;
 798   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 799   ;;
 800   --with-devices-*) device_arch=${opt#--with-devices-};
 801                     device_arch=${device_arch%%=*}
 802                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 803                     if test -f "$cf"; then
 804                         device_archs="$device_archs $device_arch"
 805                         eval "devices_${device_arch}=\$optarg"
 806                     else
 807                         error_exit "File $cf does not exist"
 808                     fi
 809   ;;
 810   --without-default-features) # processed above
 811   ;;
 812   --enable-gcov) gcov="yes"
 813   ;;
 814   --static)
 815     static="yes"
 816     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 817   ;;
 818   --mandir=*) mandir="$optarg"
 819   ;;
 820   --bindir=*) bindir="$optarg"
 821   ;;
 822   --libdir=*) libdir="$optarg"
 823   ;;
 824   --libexecdir=*) libexecdir="$optarg"
 825   ;;
 826   --includedir=*) includedir="$optarg"
 827   ;;
 828   --datadir=*) datadir="$optarg"
 829   ;;
 830   --with-suffix=*) qemu_suffix="$optarg"
 831   ;;
 832   --docdir=*) docdir="$optarg"
 833   ;;
 834   --localedir=*) localedir="$optarg"
 835   ;;
 836   --sysconfdir=*) sysconfdir="$optarg"
 837   ;;
 838   --localstatedir=*) local_statedir="$optarg"
 839   ;;
 840   --firmwarepath=*) firmwarepath="$optarg"
 841   ;;
 842   --host=*|--build=*|\
 843   --disable-dependency-tracking|\
 844   --sbindir=*|--sharedstatedir=*|\
 845   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 846   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 847     # These switches are silently ignored, for compatibility with
 848     # autoconf-generated configure scripts. This allows QEMU's
 849     # configure to be used by RPM and similar macros that set
 850     # lots of directory switches by default.
 851   ;;
 852   --audio-drv-list=*) audio_drv_list="$optarg"
 853   ;;
 854   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
 855   ;;
 856   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
 857   ;;
 858   --enable-debug-tcg) debug_tcg="yes"
 859   ;;
 860   --disable-debug-tcg) debug_tcg="no"
 861   ;;
 862   --enable-debug)
 863       # Enable debugging options that aren't excessively noisy
 864       debug_tcg="yes"
 865       meson_option_parse --enable-debug-mutex ""
 866       debug="yes"
 867       fortify_source="no"
 868   ;;
 869   --enable-sanitizers) sanitizers="yes"
 870   ;;
 871   --disable-sanitizers) sanitizers="no"
 872   ;;
 873   --enable-tsan) tsan="yes"
 874   ;;
 875   --disable-tsan) tsan="no"
 876   ;;
 877   --disable-slirp) slirp="disabled"
 878   ;;
 879   --enable-slirp) slirp="enabled"
 880   ;;
 881   --enable-slirp=git) slirp="internal"
 882   ;;
 883   --enable-slirp=*) slirp="$optarg"
 884   ;;
 885   --disable-xen) xen="disabled"
 886   ;;
 887   --enable-xen) xen="enabled"
 888   ;;
 889   --disable-tcg) tcg="disabled"
 890                  plugins="no"
 891   ;;
 892   --enable-tcg) tcg="enabled"
 893   ;;
 894   --disable-system) softmmu="no"
 895   ;;
 896   --enable-system) softmmu="yes"
 897   ;;
 898   --disable-user)
 899       linux_user="no" ;
 900       bsd_user="no" ;
 901   ;;
 902   --enable-user) ;;
 903   --disable-linux-user) linux_user="no"
 904   ;;
 905   --enable-linux-user) linux_user="yes"
 906   ;;
 907   --disable-bsd-user) bsd_user="no"
 908   ;;
 909   --enable-bsd-user) bsd_user="yes"
 910   ;;
 911   --enable-pie) pie="yes"
 912   ;;
 913   --disable-pie) pie="no"
 914   ;;
 915   --enable-werror) werror="yes"
 916   ;;
 917   --disable-werror) werror="no"
 918   ;;
 919   --enable-lto) lto="true"
 920   ;;
 921   --disable-lto) lto="false"
 922   ;;
 923   --enable-stack-protector) stack_protector="yes"
 924   ;;
 925   --disable-stack-protector) stack_protector="no"
 926   ;;
 927   --enable-safe-stack) safe_stack="yes"
 928   ;;
 929   --disable-safe-stack) safe_stack="no"
 930   ;;
 931   --enable-cfi)
 932       cfi="true";
 933       lto="true";
 934   ;;
 935   --disable-cfi) cfi="false"
 936   ;;
 937   --disable-fdt) fdt="disabled"
 938   ;;
 939   --enable-fdt) fdt="enabled"
 940   ;;
 941   --enable-fdt=git) fdt="internal"
 942   ;;
 943   --enable-fdt=*) fdt="$optarg"
 944   ;;
 945   --with-pkgversion=*) pkgversion="$optarg"
 946   ;;
 947   --with-coroutine=*) coroutine="$optarg"
 948   ;;
 949   --disable-vhost-net) vhost_net="no"
 950   ;;
 951   --enable-vhost-net) vhost_net="yes"
 952   ;;
 953   --disable-vhost-crypto) vhost_crypto="no"
 954   ;;
 955   --enable-vhost-crypto) vhost_crypto="yes"
 956   ;;
 957   --disable-vhost-scsi) vhost_scsi="no"
 958   ;;
 959   --enable-vhost-scsi) vhost_scsi="yes"
 960   ;;
 961   --disable-vhost-vsock) vhost_vsock="no"
 962   ;;
 963   --enable-vhost-vsock) vhost_vsock="yes"
 964   ;;
 965   --disable-vhost-user-fs) vhost_user_fs="no"
 966   ;;
 967   --enable-vhost-user-fs) vhost_user_fs="yes"
 968   ;;
 969   --disable-opengl) opengl="no"
 970   ;;
 971   --enable-opengl) opengl="yes"
 972   ;;
 973   --disable-zlib-test)
 974   ;;
 975   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
 976       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
 977   ;;
 978   --enable-vhdx|--disable-vhdx)
 979       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
 980   ;;
 981   --enable-uuid|--disable-uuid)
 982       echo "$0: $opt is obsolete, UUID support is always built" >&2
 983   ;;
 984   --tls-priority=*) tls_priority="$optarg"
 985   ;;
 986   --enable-rdma) rdma="yes"
 987   ;;
 988   --disable-rdma) rdma="no"
 989   ;;
 990   --enable-pvrdma) pvrdma="yes"
 991   ;;
 992   --disable-pvrdma) pvrdma="no"
 993   ;;
 994   --disable-vhost-user) vhost_user="no"
 995   ;;
 996   --enable-vhost-user) vhost_user="yes"
 997   ;;
 998   --disable-vhost-vdpa) vhost_vdpa="no"
 999   ;;
1000   --enable-vhost-vdpa) vhost_vdpa="yes"
1001   ;;
1002   --disable-vhost-kernel) vhost_kernel="no"
1003   ;;
1004   --enable-vhost-kernel) vhost_kernel="yes"
1005   ;;
1006   --disable-capstone) capstone="disabled"
1007   ;;
1008   --enable-capstone) capstone="enabled"
1009   ;;
1010   --enable-capstone=git) capstone="internal"
1011   ;;
1012   --enable-capstone=*) capstone="$optarg"
1013   ;;
1014   --with-git=*) git="$optarg"
1015   ;;
1016   --with-git-submodules=*)
1017       git_submodules_action="$optarg"
1018   ;;
1019   --enable-plugins) if test "$mingw32" = "yes"; then
1020                         error_exit "TCG plugins not currently supported on Windows platforms"
1021                     else
1022                         plugins="yes"
1023                     fi
1024   ;;
1025   --disable-plugins) plugins="no"
1026   ;;
1027   --enable-containers) use_containers="yes"
1028   ;;
1029   --disable-containers) use_containers="no"
1030   ;;
1031   --gdb=*) gdb_bin="$optarg"
1032   ;;
1033   --enable-keyring) secret_keyring="yes"
1034   ;;
1035   --disable-keyring) secret_keyring="no"
1036   ;;
1037   --enable-gio) gio=yes
1038   ;;
1039   --disable-gio) gio=no
1040   ;;
1041   # backwards compatibility options
1042   --enable-trace-backend=*) meson_option_parse "--enable-trace-backends=$optarg" "$optarg"
1043   ;;
1044   --disable-blobs) meson_option_parse --disable-install-blobs ""
1045   ;;
1046   --enable-tcmalloc) meson_option_parse --enable-malloc=tcmalloc tcmalloc
1047   ;;
1048   --enable-jemalloc) meson_option_parse --enable-malloc=jemalloc jemalloc
1049   ;;
1050   # everything else has the same name in configure and meson
1051   --enable-* | --disable-*) meson_option_parse "$opt" "$optarg"
1052   ;;
1053   *)
1054       echo "ERROR: unknown option $opt"
1055       echo "Try '$0 --help' for more information"
1056       exit 1
1057   ;;
1058   esac
1059 done
1060
1061 # test for any invalid configuration combinations
1062 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
1063     error_exit "Can't enable plugins on non-TCG builds"
1064 fi
1065
1066 case $git_submodules_action in
1067     update|validate)
1068         if test ! -e "$source_path/.git"; then
1069             echo "ERROR: cannot $git_submodules_action git submodules without .git"
1070             exit 1
1071         fi
1072     ;;
1073     ignore)
1074         if ! test -f "$source_path/ui/keycodemapdb/README"
1075         then
1076             echo
1077             echo "ERROR: missing GIT submodules"
1078             echo
1079             if test -e "$source_path/.git"; then
1080                 echo "--with-git-submodules=ignore specified but submodules were not"
1081                 echo "checked out.  Please initialize and update submodules."
1082             else
1083                 echo "This is not a GIT checkout but module content appears to"
1084                 echo "be missing. Do not use 'git archive' or GitHub download links"
1085                 echo "to acquire QEMU source archives. Non-GIT builds are only"
1086                 echo "supported with source archives linked from:"
1087                 echo
1088                 echo "  https://www.qemu.org/download/#source"
1089                 echo
1090                 echo "Developers working with GIT can use scripts/archive-source.sh"
1091                 echo "if they need to create valid source archives."
1092             fi
1093             echo
1094             exit 1
1095         fi
1096     ;;
1097     *)
1098         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
1099         exit 1
1100     ;;
1101 esac
1102
1103 libdir="${libdir:-$prefix/lib}"
1104 libexecdir="${libexecdir:-$prefix/libexec}"
1105 includedir="${includedir:-$prefix/include}"
1106
1107 if test "$mingw32" = "yes" ; then
1108     bindir="${bindir:-$prefix}"
1109 else
1110     bindir="${bindir:-$prefix/bin}"
1111 fi
1112 mandir="${mandir:-$prefix/share/man}"
1113 datadir="${datadir:-$prefix/share}"
1114 docdir="${docdir:-$prefix/share/doc}"
1115 sysconfdir="${sysconfdir:-$prefix/etc}"
1116 local_statedir="${local_statedir:-$prefix/var}"
1117 firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1118 localedir="${localedir:-$datadir/locale}"
1119
1120 if eval test -z "\${cross_cc_$cpu}"; then
1121     eval "cross_cc_${cpu}=\$cc"
1122     cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1123 fi
1124
1125 default_target_list=""
1126 mak_wilds=""
1127
1128 if [ "$linux_user" != no ]; then
1129     if [ "$targetos" = linux ] && [ -d $source_path/linux-user/include/host/$cpu ]; then
1130         linux_user=yes
1131     elif [ "$linux_user" = yes ]; then
1132         error_exit "linux-user not supported on this architecture"
1133     fi
1134 fi
1135 if [ "$bsd_user" != no ]; then
1136     if [ "$bsd_user" = "" ]; then
1137         test $targetos = freebsd && bsd_user=yes
1138     fi
1139     if [ "$bsd_user" = yes ] && ! [ -d $source_path/bsd-user/$targetos ]; then
1140         error_exit "bsd-user not supported on this host OS"
1141     fi
1142 fi
1143 if [ "$softmmu" = "yes" ]; then
1144     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
1145 fi
1146 if [ "$linux_user" = "yes" ]; then
1147     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
1148 fi
1149 if [ "$bsd_user" = "yes" ]; then
1150     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
1151 fi
1152
1153 for config in $mak_wilds; do
1154     target="$(basename "$config" .mak)"
1155     if echo "$target_list_exclude" | grep -vq "$target"; then
1156         default_target_list="${default_target_list} $target"
1157     fi
1158 done
1159
1160 if test x"$show_help" = x"yes" ; then
1161 cat << EOF
1162
1163 Usage: configure [options]
1164 Options: [defaults in brackets after descriptions]
1165
1166 Standard options:
1167   --help                   print this message
1168   --prefix=PREFIX          install in PREFIX [$prefix]
1169   --interp-prefix=PREFIX   where to find shared libraries, etc.
1170                            use %M for cpu name [$interp_prefix]
1171   --target-list=LIST       set target list (default: build all)
1172 $(echo Available targets: $default_target_list | \
1173   fold -s -w 53 | sed -e 's/^/                           /')
1174   --target-list-exclude=LIST exclude a set of targets from the default target-list
1175
1176 Advanced options (experts only):
1177   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1178   --cc=CC                  use C compiler CC [$cc]
1179   --iasl=IASL              use ACPI compiler IASL [$iasl]
1180   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1181                            build time
1182   --cxx=CXX                use C++ compiler CXX [$cxx]
1183   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1184   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
1185   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
1186   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
1187   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1188   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1189   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
1190   --make=MAKE              use specified make [$make]
1191   --python=PYTHON          use specified python [$python]
1192   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1193   --meson=MESON            use specified meson [$meson]
1194   --ninja=NINJA            use specified ninja [$ninja]
1195   --smbd=SMBD              use specified smbd [$smbd]
1196   --with-git=GIT           use specified git [$git]
1197   --with-git-submodules=update   update git submodules (default if .git dir exists)
1198   --with-git-submodules=validate fail if git submodules are not up to date
1199   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1200   --static                 enable static build [$static]
1201   --mandir=PATH            install man pages in PATH
1202   --datadir=PATH           install firmware in PATH/$qemu_suffix
1203   --localedir=PATH         install translation in PATH/$qemu_suffix
1204   --docdir=PATH            install documentation in PATH/$qemu_suffix
1205   --bindir=PATH            install binaries in PATH
1206   --libdir=PATH            install libraries in PATH
1207   --libexecdir=PATH        install helper binaries in PATH
1208   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1209   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1210   --firmwarepath=PATH      search PATH for firmware files
1211   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1212   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1213   --with-pkgversion=VERS   use specified string as sub-version of the package
1214   --without-default-features default all --enable-* options to "disabled"
1215   --without-default-devices  do not include any device that is not needed to
1216                            start the emulator (only use if you are including
1217                            desired devices in configs/devices/)
1218   --with-devices-ARCH=NAME override default configs/devices
1219   --enable-debug           enable common debug build options
1220   --enable-sanitizers      enable default sanitizers
1221   --enable-tsan            enable thread sanitizer
1222   --disable-werror         disable compilation abort on warning
1223   --disable-stack-protector disable compiler-provided stack protection
1224   --audio-drv-list=LIST    set audio drivers to try if -audiodev is not used
1225   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1226   --block-drv-rw-whitelist=L
1227                            set block driver read-write whitelist
1228                            (by default affects only QEMU, not tools like qemu-img)
1229   --block-drv-ro-whitelist=L
1230                            set block driver read-only whitelist
1231                            (by default affects only QEMU, not tools like qemu-img)
1232   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1233                            Default:trace-<pid>
1234   --cpu=CPU                Build for host CPU [$cpu]
1235   --with-coroutine=BACKEND coroutine backend. Supported options:
1236                            ucontext, sigaltstack, windows
1237   --enable-gcov            enable test coverage analysis with gcov
1238   --tls-priority           default TLS protocol/cipher priority string
1239   --enable-plugins
1240                            enable plugins via shared library loading
1241   --disable-containers     don't use containers for cross-building
1242   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1243 EOF
1244   meson_options_help
1245 cat << EOF
1246   system          all system emulation targets
1247   user            supported user emulation targets
1248   linux-user      all linux usermode emulation targets
1249   bsd-user        all BSD usermode emulation targets
1250   pie             Position Independent Executables
1251   modules         modules support (non-Windows)
1252   module-upgrades try to load modules from alternate paths for upgrades
1253   debug-tcg       TCG debugging (default is disabled)
1254   debug-info      debugging information
1255   lto             Enable Link-Time Optimization.
1256   safe-stack      SafeStack Stack Smash Protection. Depends on
1257                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1258   rdma            Enable RDMA-based migration
1259   pvrdma          Enable PVRDMA support
1260   vhost-net       vhost-net kernel acceleration support
1261   vhost-vsock     virtio sockets device support
1262   vhost-scsi      vhost-scsi kernel target support
1263   vhost-crypto    vhost-user-crypto backend support
1264   vhost-kernel    vhost kernel backend support
1265   vhost-user      vhost-user backend support
1266   vhost-vdpa      vhost-vdpa kernel backend support
1267   opengl          opengl support
1268   gio             libgio support
1269
1270 NOTE: The object files are built at the place where configure is launched
1271 EOF
1272 exit 0
1273 fi
1274
1275 # Remove old dependency files to make sure that they get properly regenerated
1276 rm -f */config-devices.mak.d
1277
1278 if test -z "$python"
1279 then
1280     error_exit "Python not found. Use --python=/path/to/python"
1281 fi
1282 if ! has "$make"
1283 then
1284     error_exit "GNU make ($make) not found"
1285 fi
1286
1287 # Note that if the Python conditional here evaluates True we will exit
1288 # with status 1 which is a shell 'false' value.
1289 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1290   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1291       "Use --python=/path/to/python to specify a supported Python."
1292 fi
1293
1294 # Preserve python version since some functionality is dependent on it
1295 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)
1296
1297 # Suppress writing compiled files
1298 python="$python -B"
1299
1300 if test -z "$meson"; then
1301     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.59.3; then
1302         meson=meson
1303     elif test $git_submodules_action != 'ignore' ; then
1304         meson=git
1305     elif test -e "${source_path}/meson/meson.py" ; then
1306         meson=internal
1307     else
1308         if test "$explicit_python" = yes; then
1309             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1310         else
1311             error_exit "Meson not found.  Use --meson=/path/to/meson"
1312         fi
1313     fi
1314 else
1315     # Meson uses its own Python interpreter to invoke other Python scripts,
1316     # but the user wants to use the one they specified with --python.
1317     #
1318     # We do not want to override the distro Python interpreter (and sometimes
1319     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1320     # just require --meson=git|internal together with --python.
1321     if test "$explicit_python" = yes; then
1322         case "$meson" in
1323             git | internal) ;;
1324             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1325         esac
1326     fi
1327 fi
1328
1329 if test "$meson" = git; then
1330     git_submodules="${git_submodules} meson"
1331 fi
1332
1333 case "$meson" in
1334     git | internal)
1335         meson="$python ${source_path}/meson/meson.py"
1336         ;;
1337     *) meson=$(command -v "$meson") ;;
1338 esac
1339
1340 # Probe for ninja
1341
1342 if test -z "$ninja"; then
1343     for c in ninja ninja-build samu; do
1344         if has $c; then
1345             ninja=$(command -v "$c")
1346             break
1347         fi
1348     done
1349     if test -z "$ninja"; then
1350       error_exit "Cannot find Ninja"
1351     fi
1352 fi
1353
1354 # Check that the C compiler works. Doing this here before testing
1355 # the host CPU ensures that we had a valid CC to autodetect the
1356 # $cpu var (and we should bail right here if that's not the case).
1357 # It also allows the help message to be printed without a CC.
1358 write_c_skeleton;
1359 if compile_object ; then
1360   : C compiler works ok
1361 else
1362     error_exit "\"$cc\" either does not exist or does not work"
1363 fi
1364 if ! compile_prog ; then
1365     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1366 fi
1367
1368 # Consult white-list to determine whether to enable werror
1369 # by default.  Only enable by default for git builds
1370 if test -z "$werror" ; then
1371     if test "$git_submodules_action" != "ignore" && \
1372         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1373         werror="yes"
1374     else
1375         werror="no"
1376     fi
1377 fi
1378
1379 if test "$targetos" = "bogus"; then
1380     # Now that we know that we're not printing the help and that
1381     # the compiler works (so the results of the check_defines we used
1382     # to identify the OS are reliable), if we didn't recognize the
1383     # host OS we should stop now.
1384     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1385 fi
1386
1387 # Check whether the compiler matches our minimum requirements:
1388 cat > $TMPC << EOF
1389 #if defined(__clang_major__) && defined(__clang_minor__)
1390 # ifdef __apple_build_version__
1391 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1392 #   error You need at least XCode Clang v10.0 to compile QEMU
1393 #  endif
1394 # else
1395 #  if __clang_major__ < 6 || (__clang_major__ == 6 && __clang_minor__ < 0)
1396 #   error You need at least Clang v6.0 to compile QEMU
1397 #  endif
1398 # endif
1399 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1400 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1401 #  error You need at least GCC v7.4.0 to compile QEMU
1402 # endif
1403 #else
1404 # error You either need GCC or Clang to compiler QEMU
1405 #endif
1406 int main (void) { return 0; }
1407 EOF
1408 if ! compile_prog "" "" ; then
1409     error_exit "You need at least GCC v7.4 or Clang v6.0 (or XCode Clang v10.0)"
1410 fi
1411
1412 # Accumulate -Wfoo and -Wno-bar separately.
1413 # We will list all of the enable flags first, and the disable flags second.
1414 # Note that we do not add -Werror, because that would enable it for all
1415 # configure tests. If a configure test failed due to -Werror this would
1416 # just silently disable some features, so it's too error prone.
1417
1418 warn_flags=
1419 add_to warn_flags -Wold-style-declaration
1420 add_to warn_flags -Wold-style-definition
1421 add_to warn_flags -Wtype-limits
1422 add_to warn_flags -Wformat-security
1423 add_to warn_flags -Wformat-y2k
1424 add_to warn_flags -Winit-self
1425 add_to warn_flags -Wignored-qualifiers
1426 add_to warn_flags -Wempty-body
1427 add_to warn_flags -Wnested-externs
1428 add_to warn_flags -Wendif-labels
1429 add_to warn_flags -Wexpansion-to-defined
1430 add_to warn_flags -Wimplicit-fallthrough=2
1431
1432 nowarn_flags=
1433 add_to nowarn_flags -Wno-initializer-overrides
1434 add_to nowarn_flags -Wno-missing-include-dirs
1435 add_to nowarn_flags -Wno-shift-negative-value
1436 add_to nowarn_flags -Wno-string-plus-int
1437 add_to nowarn_flags -Wno-typedef-redefinition
1438 add_to nowarn_flags -Wno-tautological-type-limit-compare
1439 add_to nowarn_flags -Wno-psabi
1440
1441 gcc_flags="$warn_flags $nowarn_flags"
1442
1443 cc_has_warning_flag() {
1444     write_c_skeleton;
1445
1446     # Use the positive sense of the flag when testing for -Wno-wombat
1447     # support (gcc will happily accept the -Wno- form of unknown
1448     # warning options).
1449     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1450     compile_prog "-Werror $optflag" ""
1451 }
1452
1453 objcc_has_warning_flag() {
1454     cat > $TMPM <<EOF
1455 int main(void) { return 0; }
1456 EOF
1457
1458     # Use the positive sense of the flag when testing for -Wno-wombat
1459     # support (gcc will happily accept the -Wno- form of unknown
1460     # warning options).
1461     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1462     do_objc -Werror $optflag \
1463       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1464       -o $TMPE $TMPM $QEMU_LDFLAGS
1465 }
1466
1467 for flag in $gcc_flags; do
1468     if cc_has_warning_flag $flag ; then
1469         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1470     fi
1471     if objcc_has_warning_flag $flag ; then
1472         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1473     fi
1474 done
1475
1476 if test "$stack_protector" != "no"; then
1477   cat > $TMPC << EOF
1478 int main(int argc, char *argv[])
1479 {
1480     char arr[64], *p = arr, *c = argv[0];
1481     while (*c) {
1482         *p++ = *c++;
1483     }
1484     return 0;
1485 }
1486 EOF
1487   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1488   sp_on=0
1489   for flag in $gcc_flags; do
1490     # We need to check both a compile and a link, since some compiler
1491     # setups fail only on a .c->.o compile and some only at link time
1492     if compile_object "-Werror $flag" &&
1493        compile_prog "-Werror $flag" ""; then
1494       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1495       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1496       sp_on=1
1497       break
1498     fi
1499   done
1500   if test "$stack_protector" = yes; then
1501     if test $sp_on = 0; then
1502       error_exit "Stack protector not supported"
1503     fi
1504   fi
1505 fi
1506
1507 # Disable -Wmissing-braces on older compilers that warn even for
1508 # the "universal" C zero initializer {0}.
1509 cat > $TMPC << EOF
1510 struct {
1511   int a[2];
1512 } x = {0};
1513 EOF
1514 if compile_object "-Werror" "" ; then
1515   :
1516 else
1517   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
1518 fi
1519
1520 # Our module code doesn't support Windows
1521 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1522   error_exit "Modules are not available for Windows"
1523 fi
1524
1525 # module_upgrades is only reasonable if modules are enabled
1526 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
1527   error_exit "Can't enable module-upgrades as Modules are not enabled"
1528 fi
1529
1530 # Static linking is not possible with plugins, modules or PIE
1531 if test "$static" = "yes" ; then
1532   if test "$modules" = "yes" ; then
1533     error_exit "static and modules are mutually incompatible"
1534   fi
1535   if test "$plugins" = "yes"; then
1536     error_exit "static and plugins are mutually incompatible"
1537   else
1538     plugins="no"
1539   fi
1540 fi
1541 test "$plugins" = "" && plugins=yes
1542
1543 cat > $TMPC << EOF
1544
1545 #ifdef __linux__
1546 #  define THREAD __thread
1547 #else
1548 #  define THREAD
1549 #endif
1550 static THREAD int tls_var;
1551 int main(void) { return tls_var; }
1552 EOF
1553
1554 # Check we support -fno-pie and -no-pie first; we will need the former for
1555 # building ROMs, and both for everything if --disable-pie is passed.
1556 if compile_prog "-Werror -fno-pie" "-no-pie"; then
1557   CFLAGS_NOPIE="-fno-pie"
1558   LDFLAGS_NOPIE="-no-pie"
1559 fi
1560
1561 if test "$static" = "yes"; then
1562   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1563     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1564     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
1565     pie="yes"
1566   elif test "$pie" = "yes"; then
1567     error_exit "-static-pie not available due to missing toolchain support"
1568   else
1569     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
1570     pie="no"
1571   fi
1572 elif test "$pie" = "no"; then
1573   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
1574   CONFIGURE_LDFLAGS="$LDFLAGS_NOPIE $CONFIGURE_LDFLAGS"
1575 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1576   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1577   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1578   pie="yes"
1579 elif test "$pie" = "yes"; then
1580   error_exit "PIE not available due to missing toolchain support"
1581 else
1582   echo "Disabling PIE due to missing toolchain support"
1583   pie="no"
1584 fi
1585
1586 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
1587 # The combination is known as "full relro", because .got.plt is read-only too.
1588 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
1589   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
1590 fi
1591
1592 ##########################################
1593 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1594 # use i686 as default anyway, but for those that don't, an explicit
1595 # specification is necessary
1596
1597 if test "$cpu" = "i386"; then
1598   cat > $TMPC << EOF
1599 static int sfaa(int *ptr)
1600 {
1601   return __sync_fetch_and_and(ptr, 0);
1602 }
1603
1604 int main(void)
1605 {
1606   int val = 42;
1607   val = __sync_val_compare_and_swap(&val, 0, 1);
1608   sfaa(&val);
1609   return val;
1610 }
1611 EOF
1612   if ! compile_prog "" "" ; then
1613     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1614   fi
1615 fi
1616
1617 if test "$tcg" = "enabled"; then
1618     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1619     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1620 fi
1621
1622 if test -z "${target_list+xxx}" ; then
1623     default_targets=yes
1624     for target in $default_target_list; do
1625         target_list="$target_list $target"
1626     done
1627     target_list="${target_list# }"
1628 else
1629     default_targets=no
1630     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1631     for target in $target_list; do
1632         # Check that we recognised the target name; this allows a more
1633         # friendly error message than if we let it fall through.
1634         case " $default_target_list " in
1635             *" $target "*)
1636                 ;;
1637             *)
1638                 error_exit "Unknown target name '$target'"
1639                 ;;
1640         esac
1641     done
1642 fi
1643
1644 # see if system emulation was really requested
1645 case " $target_list " in
1646   *"-softmmu "*) softmmu=yes
1647   ;;
1648   *) softmmu=no
1649   ;;
1650 esac
1651
1652 feature_not_found() {
1653   feature=$1
1654   remedy=$2
1655
1656   error_exit "User requested feature $feature" \
1657       "configure was not able to find it." \
1658       "$remedy"
1659 }
1660
1661 # ---
1662 # big/little endian test
1663 cat > $TMPC << EOF
1664 #include <stdio.h>
1665 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
1666 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
1667 int main(int argc, char *argv[])
1668 {
1669     return printf("%s %s\n", (char *)big_endian, (char *)little_endian);
1670 }
1671 EOF
1672
1673 if compile_prog ; then
1674     if strings -a $TMPE | grep -q BiGeNdIaN ; then
1675         bigendian="yes"
1676     elif strings -a $TMPE | grep -q LiTtLeEnDiAn ; then
1677         bigendian="no"
1678     else
1679         echo big/little test failed
1680         exit 1
1681     fi
1682 else
1683     echo big/little test failed
1684     exit 1
1685 fi
1686
1687 #########################################
1688 # vhost interdependencies and host support
1689
1690 # vhost backends
1691 if test "$vhost_user" = "yes" && test "$mingw32" = "yes"; then
1692   error_exit "vhost-user is not available on Windows"
1693 fi
1694 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
1695 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
1696   error_exit "vhost-vdpa is only available on Linux"
1697 fi
1698 test "$vhost_kernel" = "" && vhost_kernel=$linux
1699 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
1700   error_exit "vhost-kernel is only available on Linux"
1701 fi
1702
1703 # vhost-kernel devices
1704 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
1705 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
1706   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
1707 fi
1708 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
1709 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
1710   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
1711 fi
1712
1713 # vhost-user backends
1714 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
1715 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
1716   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
1717 fi
1718 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
1719 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
1720   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
1721 fi
1722 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
1723 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
1724   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
1725 fi
1726 #vhost-vdpa backends
1727 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
1728 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
1729   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
1730 fi
1731
1732 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
1733 if test "$vhost_net" = ""; then
1734   test "$vhost_net_user" = "yes" && vhost_net=yes
1735   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
1736   test "$vhost_kernel" = "yes" && vhost_net=yes
1737 fi
1738
1739 ##########################################
1740 # pkg-config probe
1741
1742 if ! has "$pkg_config_exe"; then
1743   error_exit "pkg-config binary '$pkg_config_exe' not found"
1744 fi
1745
1746 ##########################################
1747 # xen probe
1748
1749 if test "$xen" != "disabled" ; then
1750   # Check whether Xen library path is specified via --extra-ldflags to avoid
1751   # overriding this setting with pkg-config output. If not, try pkg-config
1752   # to obtain all needed flags.
1753
1754   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
1755      $pkg_config --exists xencontrol ; then
1756     xen_ctrl_version="$(printf '%d%02d%02d' \
1757       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
1758     xen=enabled
1759     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
1760     xen_pc="$xen_pc xenevtchn xendevicemodel"
1761     if $pkg_config --exists xentoolcore; then
1762       xen_pc="$xen_pc xentoolcore"
1763     fi
1764     xen_cflags="$($pkg_config --cflags $xen_pc)"
1765     xen_libs="$($pkg_config --libs $xen_pc)"
1766   else
1767
1768     xen_libs="-lxenstore -lxenctrl"
1769     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
1770
1771     # First we test whether Xen headers and libraries are available.
1772     # If no, we are done and there is no Xen support.
1773     # If yes, more tests are run to detect the Xen version.
1774
1775     # Xen (any)
1776     cat > $TMPC <<EOF
1777 #include <xenctrl.h>
1778 int main(void) {
1779   return 0;
1780 }
1781 EOF
1782     if ! compile_prog "" "$xen_libs" ; then
1783       # Xen not found
1784       if test "$xen" = "enabled" ; then
1785         feature_not_found "xen" "Install xen devel"
1786       fi
1787       xen=disabled
1788
1789     # Xen unstable
1790     elif
1791         cat > $TMPC <<EOF &&
1792 #undef XC_WANT_COMPAT_DEVICEMODEL_API
1793 #define __XEN_TOOLS__
1794 #include <xendevicemodel.h>
1795 #include <xenforeignmemory.h>
1796 int main(void) {
1797   xendevicemodel_handle *xd;
1798   xenforeignmemory_handle *xfmem;
1799
1800   xd = xendevicemodel_open(0, 0);
1801   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
1802
1803   xfmem = xenforeignmemory_open(0, 0);
1804   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
1805
1806   return 0;
1807 }
1808 EOF
1809         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
1810       then
1811       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
1812       xen_ctrl_version=41100
1813       xen=enabled
1814     elif
1815         cat > $TMPC <<EOF &&
1816 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
1817 #include <xenforeignmemory.h>
1818 #include <xentoolcore.h>
1819 int main(void) {
1820   xenforeignmemory_handle *xfmem;
1821
1822   xfmem = xenforeignmemory_open(0, 0);
1823   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
1824   xentoolcore_restrict_all(0);
1825
1826   return 0;
1827 }
1828 EOF
1829         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
1830       then
1831       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
1832       xen_ctrl_version=41000
1833       xen=enabled
1834     elif
1835         cat > $TMPC <<EOF &&
1836 #undef XC_WANT_COMPAT_DEVICEMODEL_API
1837 #define __XEN_TOOLS__
1838 #include <xendevicemodel.h>
1839 int main(void) {
1840   xendevicemodel_handle *xd;
1841
1842   xd = xendevicemodel_open(0, 0);
1843   xendevicemodel_close(xd);
1844
1845   return 0;
1846 }
1847 EOF
1848         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
1849       then
1850       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
1851       xen_ctrl_version=40900
1852       xen=enabled
1853     elif
1854         cat > $TMPC <<EOF &&
1855 /*
1856  * If we have stable libs the we don't want the libxc compat
1857  * layers, regardless of what CFLAGS we may have been given.
1858  *
1859  * Also, check if xengnttab_grant_copy_segment_t is defined and
1860  * grant copy operation is implemented.
1861  */
1862 #undef XC_WANT_COMPAT_EVTCHN_API
1863 #undef XC_WANT_COMPAT_GNTTAB_API
1864 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
1865 #include <xenctrl.h>
1866 #include <xenstore.h>
1867 #include <xenevtchn.h>
1868 #include <xengnttab.h>
1869 #include <xenforeignmemory.h>
1870 #include <stdint.h>
1871 #include <xen/hvm/hvm_info_table.h>
1872 #if !defined(HVM_MAX_VCPUS)
1873 # error HVM_MAX_VCPUS not defined
1874 #endif
1875 int main(void) {
1876   xc_interface *xc = NULL;
1877   xenforeignmemory_handle *xfmem;
1878   xenevtchn_handle *xe;
1879   xengnttab_handle *xg;
1880   xengnttab_grant_copy_segment_t* seg = NULL;
1881
1882   xs_daemon_open();
1883
1884   xc = xc_interface_open(0, 0, 0);
1885   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
1886   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
1887   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
1888   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
1889
1890   xfmem = xenforeignmemory_open(0, 0);
1891   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
1892
1893   xe = xenevtchn_open(0, 0);
1894   xenevtchn_fd(xe);
1895
1896   xg = xengnttab_open(0, 0);
1897   xengnttab_grant_copy(xg, 0, seg);
1898
1899   return 0;
1900 }
1901 EOF
1902         compile_prog "" "$xen_libs $xen_stable_libs"
1903       then
1904       xen_ctrl_version=40800
1905       xen=enabled
1906     elif
1907         cat > $TMPC <<EOF &&
1908 /*
1909  * If we have stable libs the we don't want the libxc compat
1910  * layers, regardless of what CFLAGS we may have been given.
1911  */
1912 #undef XC_WANT_COMPAT_EVTCHN_API
1913 #undef XC_WANT_COMPAT_GNTTAB_API
1914 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
1915 #include <xenctrl.h>
1916 #include <xenstore.h>
1917 #include <xenevtchn.h>
1918 #include <xengnttab.h>
1919 #include <xenforeignmemory.h>
1920 #include <stdint.h>
1921 #include <xen/hvm/hvm_info_table.h>
1922 #if !defined(HVM_MAX_VCPUS)
1923 # error HVM_MAX_VCPUS not defined
1924 #endif
1925 int main(void) {
1926   xc_interface *xc = NULL;
1927   xenforeignmemory_handle *xfmem;
1928   xenevtchn_handle *xe;
1929   xengnttab_handle *xg;
1930
1931   xs_daemon_open();
1932
1933   xc = xc_interface_open(0, 0, 0);
1934   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
1935   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
1936   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
1937   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
1938
1939   xfmem = xenforeignmemory_open(0, 0);
1940   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
1941
1942   xe = xenevtchn_open(0, 0);
1943   xenevtchn_fd(xe);
1944
1945   xg = xengnttab_open(0, 0);
1946   xengnttab_map_grant_ref(xg, 0, 0, 0);
1947
1948   return 0;
1949 }
1950 EOF
1951         compile_prog "" "$xen_libs $xen_stable_libs"
1952       then
1953       xen_ctrl_version=40701
1954       xen=enabled
1955
1956     # Xen 4.6
1957     elif
1958         cat > $TMPC <<EOF &&
1959 #include <xenctrl.h>
1960 #include <xenstore.h>
1961 #include <stdint.h>
1962 #include <xen/hvm/hvm_info_table.h>
1963 #if !defined(HVM_MAX_VCPUS)
1964 # error HVM_MAX_VCPUS not defined
1965 #endif
1966 int main(void) {
1967   xc_interface *xc;
1968   xs_daemon_open();
1969   xc = xc_interface_open(0, 0, 0);
1970   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
1971   xc_gnttab_open(NULL, 0);
1972   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
1973   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
1974   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
1975   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
1976   return 0;
1977 }
1978 EOF
1979         compile_prog "" "$xen_libs"
1980       then
1981       xen_ctrl_version=40600
1982       xen=enabled
1983
1984     # Xen 4.5
1985     elif
1986         cat > $TMPC <<EOF &&
1987 #include <xenctrl.h>
1988 #include <xenstore.h>
1989 #include <stdint.h>
1990 #include <xen/hvm/hvm_info_table.h>
1991 #if !defined(HVM_MAX_VCPUS)
1992 # error HVM_MAX_VCPUS not defined
1993 #endif
1994 int main(void) {
1995   xc_interface *xc;
1996   xs_daemon_open();
1997   xc = xc_interface_open(0, 0, 0);
1998   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
1999   xc_gnttab_open(NULL, 0);
2000   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2001   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2002   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2003   return 0;
2004 }
2005 EOF
2006         compile_prog "" "$xen_libs"
2007       then
2008       xen_ctrl_version=40500
2009       xen=enabled
2010
2011     elif
2012         cat > $TMPC <<EOF &&
2013 #include <xenctrl.h>
2014 #include <xenstore.h>
2015 #include <stdint.h>
2016 #include <xen/hvm/hvm_info_table.h>
2017 #if !defined(HVM_MAX_VCPUS)
2018 # error HVM_MAX_VCPUS not defined
2019 #endif
2020 int main(void) {
2021   xc_interface *xc;
2022   xs_daemon_open();
2023   xc = xc_interface_open(0, 0, 0);
2024   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2025   xc_gnttab_open(NULL, 0);
2026   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2027   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2028   return 0;
2029 }
2030 EOF
2031         compile_prog "" "$xen_libs"
2032       then
2033       xen_ctrl_version=40200
2034       xen=enabled
2035
2036     else
2037       if test "$xen" = "enabled" ; then
2038         feature_not_found "xen (unsupported version)" \
2039                           "Install a supported xen (xen 4.2 or newer)"
2040       fi
2041       xen=disabled
2042     fi
2043
2044     if test "$xen" = enabled; then
2045       if test $xen_ctrl_version -ge 40701  ; then
2046         xen_libs="$xen_libs $xen_stable_libs "
2047       fi
2048     fi
2049   fi
2050 fi
2051
2052 ##########################################
2053 # RDMA needs OpenFabrics libraries
2054 if test "$rdma" != "no" ; then
2055   cat > $TMPC <<EOF
2056 #include <rdma/rdma_cma.h>
2057 int main(void) { return 0; }
2058 EOF
2059   rdma_libs="-lrdmacm -libverbs -libumad"
2060   if compile_prog "" "$rdma_libs" ; then
2061     rdma="yes"
2062   else
2063     if test "$rdma" = "yes" ; then
2064         error_exit \
2065             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
2066             " Your options:" \
2067             "  (1) Fast: Install infiniband packages (devel) from your distro." \
2068             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
2069             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
2070     fi
2071     rdma="no"
2072   fi
2073 fi
2074
2075 ##########################################
2076 # PVRDMA detection
2077
2078 cat > $TMPC <<EOF &&
2079 #include <sys/mman.h>
2080
2081 int
2082 main(void)
2083 {
2084     char buf = 0;
2085     void *addr = &buf;
2086     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
2087
2088     return 0;
2089 }
2090 EOF
2091
2092 if test "$rdma" = "yes" ; then
2093     case "$pvrdma" in
2094     "")
2095         if compile_prog "" ""; then
2096             pvrdma="yes"
2097         else
2098             pvrdma="no"
2099         fi
2100         ;;
2101     "yes")
2102         if ! compile_prog "" ""; then
2103             error_exit "PVRDMA is not supported since mremap is not implemented"
2104         fi
2105         pvrdma="yes"
2106         ;;
2107     "no")
2108         pvrdma="no"
2109         ;;
2110     esac
2111 else
2112     if test "$pvrdma" = "yes" ; then
2113         error_exit "PVRDMA requires rdma suppport"
2114     fi
2115     pvrdma="no"
2116 fi
2117
2118 # Let's see if enhanced reg_mr is supported
2119 if test "$pvrdma" = "yes" ; then
2120
2121 cat > $TMPC <<EOF &&
2122 #include <infiniband/verbs.h>
2123
2124 int
2125 main(void)
2126 {
2127     struct ibv_mr *mr;
2128     struct ibv_pd *pd = NULL;
2129     size_t length = 10;
2130     uint64_t iova = 0;
2131     int access = 0;
2132     void *addr = NULL;
2133
2134     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
2135
2136     ibv_dereg_mr(mr);
2137
2138     return 0;
2139 }
2140 EOF
2141     if ! compile_prog "" "-libverbs"; then
2142         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
2143     fi
2144 fi
2145
2146 ##########################################
2147 # glib support probe
2148
2149 glib_req_ver=2.56
2150 glib_modules=gthread-2.0
2151 if test "$modules" = yes; then
2152     glib_modules="$glib_modules gmodule-export-2.0"
2153 elif test "$plugins" = "yes"; then
2154     glib_modules="$glib_modules gmodule-no-export-2.0"
2155 fi
2156
2157 for i in $glib_modules; do
2158     if $pkg_config --atleast-version=$glib_req_ver $i; then
2159         glib_cflags=$($pkg_config --cflags $i)
2160         glib_libs=$($pkg_config --libs $i)
2161     else
2162         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
2163     fi
2164 done
2165
2166 # This workaround is required due to a bug in pkg-config file for glib as it
2167 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
2168
2169 if test "$static" = yes && test "$mingw32" = yes; then
2170     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
2171 fi
2172
2173 if ! test "$gio" = "no"; then
2174     pass=no
2175     if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
2176         gio_cflags=$($pkg_config --cflags gio-2.0)
2177         gio_libs=$($pkg_config --libs gio-2.0)
2178         gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
2179         if ! has "$gdbus_codegen"; then
2180             gdbus_codegen=
2181         fi
2182         # Check that the libraries actually work -- Ubuntu 18.04 ships
2183         # with pkg-config --static --libs data for gio-2.0 that is missing
2184         # -lblkid and will give a link error.
2185         cat > $TMPC <<EOF
2186 #include <gio/gio.h>
2187 int main(void)
2188 {
2189     g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
2190     return 0;
2191 }
2192 EOF
2193         if compile_prog "$gio_cflags" "$gio_libs" ; then
2194             pass=yes
2195         else
2196             pass=no
2197         fi
2198
2199         if test "$pass" = "yes" &&
2200             $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
2201             gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
2202             gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
2203         fi
2204     fi
2205
2206     if test "$pass" = "no"; then
2207         if test "$gio" = "yes"; then
2208             feature_not_found "gio" "Install libgio >= 2.0"
2209         else
2210             gio=no
2211         fi
2212     else
2213         gio=yes
2214     fi
2215 fi
2216
2217 # Sanity check that the current size_t matches the
2218 # size that glib thinks it should be. This catches
2219 # problems on multi-arch where people try to build
2220 # 32-bit QEMU while pointing at 64-bit glib headers
2221 cat > $TMPC <<EOF
2222 #include <glib.h>
2223 #include <unistd.h>
2224
2225 #define QEMU_BUILD_BUG_ON(x) \
2226   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
2227
2228 int main(void) {
2229    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
2230    return 0;
2231 }
2232 EOF
2233
2234 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
2235     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
2236                "You probably need to set PKG_CONFIG_LIBDIR"\
2237                "to point to the right pkg-config files for your"\
2238                "build target"
2239 fi
2240
2241 # Silence clang warnings triggered by glib < 2.57.2
2242 cat > $TMPC << EOF
2243 #include <glib.h>
2244 typedef struct Foo {
2245     int i;
2246 } Foo;
2247 static void foo_free(Foo *f)
2248 {
2249     g_free(f);
2250 }
2251 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
2252 int main(void) { return 0; }
2253 EOF
2254 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
2255     if cc_has_warning_flag "-Wno-unused-function"; then
2256         glib_cflags="$glib_cflags -Wno-unused-function"
2257         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
2258     fi
2259 fi
2260
2261 ##########################################
2262 # SHA command probe for modules
2263 if test "$modules" = yes; then
2264     shacmd_probe="sha1sum sha1 shasum"
2265     for c in $shacmd_probe; do
2266         if has $c; then
2267             shacmd="$c"
2268             break
2269         fi
2270     done
2271     if test "$shacmd" = ""; then
2272         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
2273     fi
2274 fi
2275
2276 ##########################################
2277 # fdt probe
2278
2279 case "$fdt" in
2280   auto | enabled | internal)
2281     # Simpler to always update submodule, even if not needed.
2282     git_submodules="${git_submodules} dtc"
2283     ;;
2284 esac
2285
2286 ##########################################
2287 # opengl probe (for sdl2, gtk)
2288
2289 if test "$opengl" != "no" ; then
2290   epoxy=no
2291   if $pkg_config epoxy; then
2292     cat > $TMPC << EOF
2293 #include <epoxy/egl.h>
2294 int main(void) { return 0; }
2295 EOF
2296     if compile_prog "" "" ; then
2297       epoxy=yes
2298     fi
2299   fi
2300
2301   if test "$epoxy" = "yes" ; then
2302     opengl_cflags="$($pkg_config --cflags epoxy)"
2303     opengl_libs="$($pkg_config --libs epoxy)"
2304     opengl=yes
2305   else
2306     if test "$opengl" = "yes" ; then
2307       feature_not_found "opengl" "Please install epoxy with EGL"
2308     fi
2309     opengl_cflags=""
2310     opengl_libs=""
2311     opengl=no
2312   fi
2313 fi
2314
2315 # check for usbfs
2316 have_usbfs=no
2317 if test "$linux_user" = "yes"; then
2318   cat > $TMPC << EOF
2319 #include <linux/usbdevice_fs.h>
2320
2321 #ifndef USBDEVFS_GET_CAPABILITIES
2322 #error "USBDEVFS_GET_CAPABILITIES undefined"
2323 #endif
2324
2325 #ifndef USBDEVFS_DISCONNECT_CLAIM
2326 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
2327 #endif
2328
2329 int main(void)
2330 {
2331     return 0;
2332 }
2333 EOF
2334   if compile_prog "" ""; then
2335     have_usbfs=yes
2336   fi
2337 fi
2338
2339 ##########################################
2340 # capstone
2341
2342 case "$capstone" in
2343   auto | enabled | internal)
2344     # Simpler to always update submodule, even if not needed.
2345     git_submodules="${git_submodules} capstone"
2346     ;;
2347 esac
2348
2349 ##########################################
2350 # check and set a backend for coroutine
2351
2352 # We prefer ucontext, but it's not always possible. The fallback
2353 # is sigcontext. On Windows the only valid backend is the Windows
2354 # specific one.
2355
2356 ucontext_works=no
2357 if test "$darwin" != "yes"; then
2358   cat > $TMPC << EOF
2359 #include <ucontext.h>
2360 #ifdef __stub_makecontext
2361 #error Ignoring glibc stub makecontext which will always fail
2362 #endif
2363 int main(void) { makecontext(0, 0, 0); return 0; }
2364 EOF
2365   if compile_prog "" "" ; then
2366     ucontext_works=yes
2367   fi
2368 fi
2369
2370 if test "$coroutine" = ""; then
2371   if test "$mingw32" = "yes"; then
2372     coroutine=win32
2373   elif test "$ucontext_works" = "yes"; then
2374     coroutine=ucontext
2375   else
2376     coroutine=sigaltstack
2377   fi
2378 else
2379   case $coroutine in
2380   windows)
2381     if test "$mingw32" != "yes"; then
2382       error_exit "'windows' coroutine backend only valid for Windows"
2383     fi
2384     # Unfortunately the user visible backend name doesn't match the
2385     # coroutine-*.c filename for this case, so we have to adjust it here.
2386     coroutine=win32
2387     ;;
2388   ucontext)
2389     if test "$ucontext_works" != "yes"; then
2390       feature_not_found "ucontext"
2391     fi
2392     ;;
2393   sigaltstack)
2394     if test "$mingw32" = "yes"; then
2395       error_exit "only the 'windows' coroutine backend is valid for Windows"
2396     fi
2397     ;;
2398   *)
2399     error_exit "unknown coroutine backend $coroutine"
2400     ;;
2401   esac
2402 fi
2403
2404 ##################################################
2405 # SafeStack
2406
2407
2408 if test "$safe_stack" = "yes"; then
2409 cat > $TMPC << EOF
2410 int main(int argc, char *argv[])
2411 {
2412 #if ! __has_feature(safe_stack)
2413 #error SafeStack Disabled
2414 #endif
2415     return 0;
2416 }
2417 EOF
2418   flag="-fsanitize=safe-stack"
2419   # Check that safe-stack is supported and enabled.
2420   if compile_prog "-Werror $flag" "$flag"; then
2421     # Flag needed both at compilation and at linking
2422     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2423     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2424   else
2425     error_exit "SafeStack not supported by your compiler"
2426   fi
2427   if test "$coroutine" != "ucontext"; then
2428     error_exit "SafeStack is only supported by the coroutine backend ucontext"
2429   fi
2430 else
2431 cat > $TMPC << EOF
2432 int main(int argc, char *argv[])
2433 {
2434 #if defined(__has_feature)
2435 #if __has_feature(safe_stack)
2436 #error SafeStack Enabled
2437 #endif
2438 #endif
2439     return 0;
2440 }
2441 EOF
2442 if test "$safe_stack" = "no"; then
2443   # Make sure that safe-stack is disabled
2444   if ! compile_prog "-Werror" ""; then
2445     # SafeStack was already enabled, try to explicitly remove the feature
2446     flag="-fno-sanitize=safe-stack"
2447     if ! compile_prog "-Werror $flag" "$flag"; then
2448       error_exit "Configure cannot disable SafeStack"
2449     fi
2450     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2451     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2452   fi
2453 else # "$safe_stack" = ""
2454   # Set safe_stack to yes or no based on pre-existing flags
2455   if compile_prog "-Werror" ""; then
2456     safe_stack="no"
2457   else
2458     safe_stack="yes"
2459     if test "$coroutine" != "ucontext"; then
2460       error_exit "SafeStack is only supported by the coroutine backend ucontext"
2461     fi
2462   fi
2463 fi
2464 fi
2465
2466 ########################################
2467 # check if __[u]int128_t is usable.
2468
2469 int128=no
2470 cat > $TMPC << EOF
2471 __int128_t a;
2472 __uint128_t b;
2473 int main (void) {
2474   a = a + b;
2475   b = a * b;
2476   a = a * a;
2477   return 0;
2478 }
2479 EOF
2480 if compile_prog "" "" ; then
2481     int128=yes
2482 fi
2483
2484 #########################################
2485 # See if 128-bit atomic operations are supported.
2486
2487 atomic128=no
2488 if test "$int128" = "yes"; then
2489   cat > $TMPC << EOF
2490 int main(void)
2491 {
2492   unsigned __int128 x = 0, y = 0;
2493   y = __atomic_load(&x, 0);
2494   __atomic_store(&x, y, 0);
2495   __atomic_compare_exchange(&x, &y, x, 0, 0, 0);
2496   return 0;
2497 }
2498 EOF
2499   if compile_prog "" "" ; then
2500     atomic128=yes
2501   fi
2502 fi
2503
2504 cmpxchg128=no
2505 if test "$int128" = yes && test "$atomic128" = no; then
2506   cat > $TMPC << EOF
2507 int main(void)
2508 {
2509   unsigned __int128 x = 0, y = 0;
2510   __sync_val_compare_and_swap_16(&x, y, x);
2511   return 0;
2512 }
2513 EOF
2514   if compile_prog "" "" ; then
2515     cmpxchg128=yes
2516   fi
2517 fi
2518
2519 ########################################
2520 # check if ccache is interfering with
2521 # semantic analysis of macros
2522
2523 unset CCACHE_CPP2
2524 ccache_cpp2=no
2525 cat > $TMPC << EOF
2526 static const int Z = 1;
2527 #define fn() ({ Z; })
2528 #define TAUT(X) ((X) == Z)
2529 #define PAREN(X, Y) (X == Y)
2530 #define ID(X) (X)
2531 int main(int argc, char *argv[])
2532 {
2533     int x = 0, y = 0;
2534     x = ID(x);
2535     x = fn();
2536     fn();
2537     if (PAREN(x, y)) return 0;
2538     if (TAUT(Z)) return 0;
2539     return 0;
2540 }
2541 EOF
2542
2543 if ! compile_object "-Werror"; then
2544     ccache_cpp2=yes
2545 fi
2546
2547 #################################################
2548 # clang does not support glibc + FORTIFY_SOURCE.
2549
2550 if test "$fortify_source" != "no"; then
2551   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
2552     fortify_source="no";
2553   elif test -n "$cxx" && has $cxx &&
2554        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
2555     fortify_source="no";
2556   else
2557     fortify_source="yes"
2558   fi
2559 fi
2560
2561 ##########################################
2562 # checks for sanitizers
2563
2564 have_asan=no
2565 have_ubsan=no
2566 have_asan_iface_h=no
2567 have_asan_iface_fiber=no
2568
2569 if test "$sanitizers" = "yes" ; then
2570   write_c_skeleton
2571   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
2572       have_asan=yes
2573   fi
2574
2575   # we could use a simple skeleton for flags checks, but this also
2576   # detect the static linking issue of ubsan, see also:
2577   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
2578   cat > $TMPC << EOF
2579 #include <stdlib.h>
2580 int main(void) {
2581     void *tmp = malloc(10);
2582     if (tmp != NULL) {
2583         return *(int *)(tmp + 2);
2584     }
2585     return 1;
2586 }
2587 EOF
2588   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
2589       have_ubsan=yes
2590   fi
2591
2592   if check_include "sanitizer/asan_interface.h" ; then
2593       have_asan_iface_h=yes
2594   fi
2595
2596   cat > $TMPC << EOF
2597 #include <sanitizer/asan_interface.h>
2598 int main(void) {
2599   __sanitizer_start_switch_fiber(0, 0, 0);
2600   return 0;
2601 }
2602 EOF
2603   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
2604       have_asan_iface_fiber=yes
2605   fi
2606 fi
2607
2608 # Thread sanitizer is, for now, much noisier than the other sanitizers;
2609 # keep it separate until that is not the case.
2610 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
2611   error_exit "TSAN is not supported with other sanitiziers."
2612 fi
2613 have_tsan=no
2614 have_tsan_iface_fiber=no
2615 if test "$tsan" = "yes" ; then
2616   write_c_skeleton
2617   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
2618       have_tsan=yes
2619   fi
2620   cat > $TMPC << EOF
2621 #include <sanitizer/tsan_interface.h>
2622 int main(void) {
2623   __tsan_create_fiber(0);
2624   return 0;
2625 }
2626 EOF
2627   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
2628       have_tsan_iface_fiber=yes
2629   fi
2630 fi
2631
2632 ##########################################
2633 # check for slirp
2634
2635 case "$slirp" in
2636   auto | enabled | internal)
2637     # Simpler to always update submodule, even if not needed.
2638     git_submodules="${git_submodules} slirp"
2639     ;;
2640 esac
2641
2642 ##########################################
2643 # check for usable __NR_keyctl syscall
2644
2645 if test "$linux" = "yes" ; then
2646
2647     have_keyring=no
2648     cat > $TMPC << EOF
2649 #include <errno.h>
2650 #include <asm/unistd.h>
2651 #include <linux/keyctl.h>
2652 #include <unistd.h>
2653 int main(void) {
2654     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
2655 }
2656 EOF
2657     if compile_prog "" "" ; then
2658         have_keyring=yes
2659     fi
2660 fi
2661 if test "$secret_keyring" != "no"
2662 then
2663     if test "$have_keyring" = "yes"
2664     then
2665         secret_keyring=yes
2666     else
2667         if test "$secret_keyring" = "yes"
2668         then
2669             error_exit "syscall __NR_keyctl requested, \
2670 but not implemented on your system"
2671         else
2672             secret_keyring=no
2673         fi
2674     fi
2675 fi
2676
2677 ##########################################
2678 # End of CC checks
2679 # After here, no more $cc or $ld runs
2680
2681 write_c_skeleton
2682
2683 if test "$gcov" = "yes" ; then
2684   :
2685 elif test "$fortify_source" = "yes" ; then
2686   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2687   debug=no
2688 fi
2689
2690 case "$ARCH" in
2691 alpha)
2692   # Ensure there's only a single GP
2693   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
2694 ;;
2695 esac
2696
2697 if test "$have_asan" = "yes"; then
2698   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2699   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2700   if test "$have_asan_iface_h" = "no" ; then
2701       echo "ASAN build enabled, but ASAN header missing." \
2702            "Without code annotation, the report may be inferior."
2703   elif test "$have_asan_iface_fiber" = "no" ; then
2704       echo "ASAN build enabled, but ASAN header is too old." \
2705            "Without code annotation, the report may be inferior."
2706   fi
2707 fi
2708 if test "$have_tsan" = "yes" ; then
2709   if test "$have_tsan_iface_fiber" = "yes" ; then
2710     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2711     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2712   else
2713     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2714   fi
2715 elif test "$tsan" = "yes" ; then
2716   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2717 fi
2718 if test "$have_ubsan" = "yes"; then
2719   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2720   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2721 fi
2722
2723 ##########################################
2724
2725 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
2726 if test "$solaris" = "no" && test "$tsan" = "no"; then
2727     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
2728         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
2729     fi
2730 fi
2731
2732 # Use ASLR, no-SEH and DEP if available
2733 if test "$mingw32" = "yes" ; then
2734     flags="--no-seh --nxcompat"
2735
2736     # Disable ASLR for debug builds to allow debugging with gdb
2737     if test "$debug" = "no" ; then
2738         flags="--dynamicbase $flags"
2739     fi
2740
2741     for flag in $flags; do
2742         if ld_has $flag ; then
2743             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
2744         fi
2745     done
2746 fi
2747
2748 # Guest agent Windows MSI package
2749
2750 if test "$QEMU_GA_MANUFACTURER" = ""; then
2751   QEMU_GA_MANUFACTURER=QEMU
2752 fi
2753 if test "$QEMU_GA_DISTRO" = ""; then
2754   QEMU_GA_DISTRO=Linux
2755 fi
2756 if test "$QEMU_GA_VERSION" = ""; then
2757     QEMU_GA_VERSION=$(cat $source_path/VERSION)
2758 fi
2759
2760 QEMU_GA_MSI_MINGW_DLL_PATH="$($pkg_config --variable=prefix glib-2.0)/bin"
2761
2762 # Mac OS X ships with a broken assembler
2763 roms=
2764 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
2765         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2766         test "$targetos" != "haiku" && test "$softmmu" = yes ; then
2767     # Different host OS linkers have different ideas about the name of the ELF
2768     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
2769     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
2770     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
2771         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
2772             ld_i386_emulation="$emu"
2773             roms="optionrom"
2774             break
2775         fi
2776     done
2777 fi
2778
2779 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
2780 # or -march=z10 (which is the lowest architecture level that Clang supports)
2781 if test "$cpu" = "s390x" ; then
2782   write_c_skeleton
2783   compile_prog "-march=z900" ""
2784   has_z900=$?
2785   if [ $has_z900 = 0 ] || compile_object "-march=z10 -msoft-float -Werror"; then
2786     if [ $has_z900 != 0 ]; then
2787       echo "WARNING: Your compiler does not support the z900!"
2788       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2789     fi
2790     roms="$roms s390-ccw"
2791     # SLOF is required for building the s390-ccw firmware on s390x,
2792     # since it is using the libnet code from SLOF for network booting.
2793     git_submodules="${git_submodules} roms/SLOF"
2794   fi
2795 fi
2796
2797 # Check that the C++ compiler exists and works with the C compiler.
2798 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
2799 if has $cxx; then
2800     cat > $TMPC <<EOF
2801 int c_function(void);
2802 int main(void) { return c_function(); }
2803 EOF
2804
2805     compile_object
2806
2807     cat > $TMPCXX <<EOF
2808 extern "C" {
2809    int c_function(void);
2810 }
2811 int c_function(void) { return 42; }
2812 EOF
2813
2814     update_cxxflags
2815
2816     if do_cxx $CXXFLAGS $EXTRA_CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
2817         # C++ compiler $cxx works ok with C compiler $cc
2818         :
2819     else
2820         echo "C++ compiler $cxx does not work with C compiler $cc"
2821         echo "Disabling C++ specific optional code"
2822         cxx=
2823     fi
2824 else
2825     echo "No C++ compiler available; disabling C++ specific optional code"
2826     cxx=
2827 fi
2828
2829 if !(GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2830     exit 1
2831 fi
2832
2833 config_host_mak="config-host.mak"
2834
2835 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2836 echo >> $config_host_mak
2837
2838 echo all: >> $config_host_mak
2839 echo "GIT=$git" >> $config_host_mak
2840 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2841 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2842
2843 if test "$debug_tcg" = "yes" ; then
2844   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2845 fi
2846 if test "$mingw32" = "yes" ; then
2847   echo "CONFIG_WIN32=y" >> $config_host_mak
2848   echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
2849   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
2850   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
2851   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
2852 else
2853   echo "CONFIG_POSIX=y" >> $config_host_mak
2854 fi
2855
2856 if test "$linux" = "yes" ; then
2857   echo "CONFIG_LINUX=y" >> $config_host_mak
2858 fi
2859
2860 if test "$darwin" = "yes" ; then
2861   echo "CONFIG_DARWIN=y" >> $config_host_mak
2862 fi
2863
2864 if test "$solaris" = "yes" ; then
2865   echo "CONFIG_SOLARIS=y" >> $config_host_mak
2866 fi
2867 if test "$static" = "yes" ; then
2868   echo "CONFIG_STATIC=y" >> $config_host_mak
2869 fi
2870 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
2871 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
2872 qemu_version=$(head $source_path/VERSION)
2873 echo "PKGVERSION=$pkgversion" >>$config_host_mak
2874 echo "SRC_PATH=$source_path" >> $config_host_mak
2875 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2876 if test "$modules" = "yes"; then
2877   # $shacmd can generate a hash started with digit, which the compiler doesn't
2878   # like as an symbol. So prefix it with an underscore
2879   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
2880   echo "CONFIG_MODULES=y" >> $config_host_mak
2881 fi
2882 if test "$module_upgrades" = "yes"; then
2883   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
2884 fi
2885 if test "$have_usbfs" = "yes" ; then
2886   echo "CONFIG_USBFS=y" >> $config_host_mak
2887 fi
2888 if test "$gio" = "yes" ; then
2889     echo "CONFIG_GIO=y" >> $config_host_mak
2890     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
2891     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
2892 fi
2893 if test "$gdbus_codegen" != "" ; then
2894     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
2895 fi
2896 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
2897
2898 if test "$xen" = "enabled" ; then
2899   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
2900   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
2901   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
2902   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
2903 fi
2904 if test "$vhost_scsi" = "yes" ; then
2905   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
2906 fi
2907 if test "$vhost_net" = "yes" ; then
2908   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
2909 fi
2910 if test "$vhost_net_user" = "yes" ; then
2911   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
2912 fi
2913 if test "$vhost_net_vdpa" = "yes" ; then
2914   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
2915 fi
2916 if test "$vhost_crypto" = "yes" ; then
2917   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
2918 fi
2919 if test "$vhost_vsock" = "yes" ; then
2920   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
2921   if test "$vhost_user" = "yes" ; then
2922     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
2923   fi
2924 fi
2925 if test "$vhost_kernel" = "yes" ; then
2926   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
2927 fi
2928 if test "$vhost_user" = "yes" ; then
2929   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
2930 fi
2931 if test "$vhost_vdpa" = "yes" ; then
2932   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
2933 fi
2934 if test "$vhost_user_fs" = "yes" ; then
2935   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
2936 fi
2937 if test "$tcg" = "enabled" -a "$tcg_interpreter" = "true" ; then
2938   echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
2939 fi
2940
2941 if test "$opengl" = "yes" ; then
2942   echo "CONFIG_OPENGL=y" >> $config_host_mak
2943   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
2944   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
2945 fi
2946
2947 # XXX: suppress that
2948 if [ "$bsd" = "yes" ] ; then
2949   echo "CONFIG_BSD=y" >> $config_host_mak
2950 fi
2951
2952 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2953
2954 if test "$have_asan_iface_fiber" = "yes" ; then
2955     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2956 fi
2957
2958 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2959     echo "CONFIG_TSAN=y" >> $config_host_mak
2960 fi
2961
2962 if test "$int128" = "yes" ; then
2963   echo "CONFIG_INT128=y" >> $config_host_mak
2964 fi
2965
2966 if test "$atomic128" = "yes" ; then
2967   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
2968 fi
2969
2970 if test "$cmpxchg128" = "yes" ; then
2971   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
2972 fi
2973
2974 if test "$rdma" = "yes" ; then
2975   echo "CONFIG_RDMA=y" >> $config_host_mak
2976   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
2977 fi
2978
2979 if test "$pvrdma" = "yes" ; then
2980   echo "CONFIG_PVRDMA=y" >> $config_host_mak
2981 fi
2982
2983 if test "$plugins" = "yes" ; then
2984     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2985 fi
2986
2987 if test -n "$gdb_bin"; then
2988     gdb_version=$($gdb_bin --version | head -n 1)
2989     if version_ge ${gdb_version##* } 9.1; then
2990         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2991     fi
2992 fi
2993
2994 if test "$secret_keyring" = "yes" ; then
2995   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
2996 fi
2997
2998 echo "ROMS=$roms" >> $config_host_mak
2999 echo "MAKE=$make" >> $config_host_mak
3000 echo "PYTHON=$python" >> $config_host_mak
3001 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
3002 echo "MESON=$meson" >> $config_host_mak
3003 echo "NINJA=$ninja" >> $config_host_mak
3004 echo "CC=$cc" >> $config_host_mak
3005 echo "HOST_CC=$host_cc" >> $config_host_mak
3006 echo "AR=$ar" >> $config_host_mak
3007 echo "AS=$as" >> $config_host_mak
3008 echo "CCAS=$ccas" >> $config_host_mak
3009 echo "CPP=$cpp" >> $config_host_mak
3010 echo "OBJCOPY=$objcopy" >> $config_host_mak
3011 echo "LD=$ld" >> $config_host_mak
3012 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
3013 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
3014 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
3015 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
3016 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
3017 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
3018 echo "GLIB_VERSION=$(pkg-config --modversion glib-2.0)" >> $config_host_mak
3019 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
3020 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
3021 echo "STRIP=$strip" >> $config_host_mak
3022 echo "EXESUF=$EXESUF" >> $config_host_mak
3023
3024 # use included Linux headers
3025 if test "$linux" = "yes" ; then
3026   mkdir -p linux-headers
3027   case "$cpu" in
3028   i386|x86_64)
3029     linux_arch=x86
3030     ;;
3031   ppc|ppc64)
3032     linux_arch=powerpc
3033     ;;
3034   s390x)
3035     linux_arch=s390
3036     ;;
3037   aarch64)
3038     linux_arch=arm64
3039     ;;
3040   loongarch*)
3041     linux_arch=loongarch
3042     ;;
3043   mips64)
3044     linux_arch=mips
3045     ;;
3046   *)
3047     # For most CPUs the kernel architecture name and QEMU CPU name match.
3048     linux_arch="$cpu"
3049     ;;
3050   esac
3051     # For non-KVM architectures we will not have asm headers
3052     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
3053       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
3054     fi
3055 fi
3056
3057 for target in $target_list; do
3058     target_dir="$target"
3059     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
3060     mkdir -p $target_dir
3061     case $target in
3062         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
3063         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
3064     esac
3065 done
3066
3067 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
3068 if test "$default_targets" = "yes"; then
3069   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
3070 fi
3071
3072 if test "$ccache_cpp2" = "yes"; then
3073   echo "export CCACHE_CPP2=y" >> $config_host_mak
3074 fi
3075
3076 if test "$safe_stack" = "yes"; then
3077   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
3078 fi
3079
3080 # If we're using a separate build tree, set it up now.
3081 # LINKS are things to symlink back into the source tree
3082 # (these can be both files and directories).
3083 # Caution: do not add files or directories here using wildcards. This
3084 # will result in problems later if a new file matching the wildcard is
3085 # added to the source tree -- nothing will cause configure to be rerun
3086 # so the build tree will be missing the link back to the new file, and
3087 # tests might fail. Prefer to keep the relevant files in their own
3088 # directory and symlink the directory instead.
3089 LINKS="Makefile"
3090 LINKS="$LINKS tests/tcg/Makefile.target"
3091 LINKS="$LINKS pc-bios/optionrom/Makefile"
3092 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
3093 LINKS="$LINKS roms/seabios/Makefile"
3094 LINKS="$LINKS pc-bios/qemu-icon.bmp"
3095 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
3096 LINKS="$LINKS tests/avocado tests/data"
3097 LINKS="$LINKS tests/qemu-iotests/check"
3098 LINKS="$LINKS python"
3099 LINKS="$LINKS contrib/plugins/Makefile "
3100 for bios_file in \
3101     $source_path/pc-bios/*.bin \
3102     $source_path/pc-bios/*.elf \
3103     $source_path/pc-bios/*.lid \
3104     $source_path/pc-bios/*.rom \
3105     $source_path/pc-bios/*.dtb \
3106     $source_path/pc-bios/*.img \
3107     $source_path/pc-bios/openbios-* \
3108     $source_path/pc-bios/u-boot.* \
3109     $source_path/pc-bios/palcode-* \
3110     $source_path/pc-bios/qemu_vga.ndrv
3111
3112 do
3113     LINKS="$LINKS pc-bios/$(basename $bios_file)"
3114 done
3115 for f in $LINKS ; do
3116     if [ -e "$source_path/$f" ]; then
3117         mkdir -p `dirname ./$f`
3118         symlink "$source_path/$f" "$f"
3119     fi
3120 done
3121
3122 (for i in $cross_cc_vars; do
3123   export $i
3124 done
3125 export target_list source_path use_containers cpu
3126 $source_path/tests/tcg/configure.sh)
3127
3128 # temporary config to build submodules
3129 if test -f $source_path/roms/seabios/Makefile; then
3130   for rom in seabios; do
3131     config_mak=roms/$rom/config.mak
3132     echo "# Automatically generated by configure - do not modify" > $config_mak
3133     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
3134     echo "AS=$as" >> $config_mak
3135     echo "CCAS=$ccas" >> $config_mak
3136     echo "CC=$cc" >> $config_mak
3137     echo "BCC=bcc" >> $config_mak
3138     echo "CPP=$cpp" >> $config_mak
3139     echo "OBJCOPY=objcopy" >> $config_mak
3140     echo "IASL=$iasl" >> $config_mak
3141     echo "LD=$ld" >> $config_mak
3142     echo "RANLIB=$ranlib" >> $config_mak
3143   done
3144 fi
3145
3146 config_mak=pc-bios/optionrom/config.mak
3147 echo "# Automatically generated by configure - do not modify" > $config_mak
3148 echo "TOPSRC_DIR=$source_path" >> $config_mak
3149
3150 if test "$skip_meson" = no; then
3151   cross="config-meson.cross.new"
3152   meson_quote() {
3153     test $# = 0 && return
3154     echo "'$(echo $* | sed "s/ /','/g")'"
3155   }
3156
3157   echo "# Automatically generated by configure - do not modify" > $cross
3158   echo "[properties]" >> $cross
3159
3160   # unroll any custom device configs
3161   for a in $device_archs; do
3162       eval "c=\$devices_${a}"
3163       echo "${a}-softmmu = '$c'" >> $cross
3164   done
3165
3166   test -z "$cxx" && echo "link_language = 'c'" >> $cross
3167   echo "[built-in options]" >> $cross
3168   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
3169   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
3170   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
3171   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
3172   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
3173   echo "[binaries]" >> $cross
3174   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
3175   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
3176   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
3177   echo "ar = [$(meson_quote $ar)]" >> $cross
3178   echo "nm = [$(meson_quote $nm)]" >> $cross
3179   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
3180   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
3181   if has $sdl2_config; then
3182     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
3183   fi
3184   echo "strip = [$(meson_quote $strip)]" >> $cross
3185   echo "windres = [$(meson_quote $windres)]" >> $cross
3186   if test "$cross_compile" = "yes"; then
3187     cross_arg="--cross-file config-meson.cross"
3188     echo "[host_machine]" >> $cross
3189     echo "system = '$targetos'" >> $cross
3190     case "$cpu" in
3191         i386)
3192             echo "cpu_family = 'x86'" >> $cross
3193             ;;
3194         *)
3195             echo "cpu_family = '$cpu'" >> $cross
3196             ;;
3197     esac
3198     echo "cpu = '$cpu'" >> $cross
3199     if test "$bigendian" = "yes" ; then
3200         echo "endian = 'big'" >> $cross
3201     else
3202         echo "endian = 'little'" >> $cross
3203     fi
3204   else
3205     cross_arg="--native-file config-meson.cross"
3206   fi
3207   mv $cross config-meson.cross
3208
3209   rm -rf meson-private meson-info meson-logs
3210   run_meson() {
3211     NINJA=$ninja $meson setup \
3212         --prefix "$prefix" \
3213         --libdir "$libdir" \
3214         --libexecdir "$libexecdir" \
3215         --bindir "$bindir" \
3216         --includedir "$includedir" \
3217         --datadir "$datadir" \
3218         --mandir "$mandir" \
3219         --sysconfdir "$sysconfdir" \
3220         --localedir "$localedir" \
3221         --localstatedir "$local_statedir" \
3222         -Daudio_drv_list=$audio_drv_list \
3223         -Ddefault_devices=$default_devices \
3224         -Ddocdir="$docdir" \
3225         -Diasl="$($iasl -h >/dev/null 2>&1 && printf %s "$iasl")" \
3226         -Dqemu_firmwarepath="$firmwarepath" \
3227         -Dqemu_suffix="$qemu_suffix" \
3228         -Dsmbd="$smbd" \
3229         -Dsphinx_build="$sphinx_build" \
3230         -Dtrace_file="$trace_file" \
3231         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
3232         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
3233         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
3234         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
3235         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
3236         -Db_lto=$lto -Dcfi=$cfi -Dtcg=$tcg -Dxen=$xen \
3237         -Dcapstone=$capstone -Dfdt=$fdt -Dslirp=$slirp \
3238         $(test -n "${LIB_FUZZING_ENGINE+xxx}" && echo "-Dfuzzing_engine=$LIB_FUZZING_ENGINE") \
3239         $(if test "$default_feature" = no; then echo "-Dauto_features=disabled"; fi) \
3240         "$@" $cross_arg "$PWD" "$source_path"
3241   }
3242   eval run_meson $meson_options
3243   if test "$?" -ne 0 ; then
3244       error_exit "meson setup failed"
3245   fi
3246 else
3247   if test -f meson-private/cmd_line.txt; then
3248     # Adjust old command line options whose type was changed
3249     # Avoids having to use "setup --wipe" when Meson is upgraded
3250     perl -i -ne '
3251       s/^gettext = true$/gettext = auto/;
3252       s/^gettext = false$/gettext = disabled/;
3253       /^b_staticpic/ && next;
3254       print;' meson-private/cmd_line.txt
3255   fi
3256 fi
3257
3258 # Save the configure command line for later reuse.
3259 cat <<EOD >config.status
3260 #!/bin/sh
3261 # Generated by configure.
3262 # Run this file to recreate the current configuration.
3263 # Compiler output produced by configure, useful for debugging
3264 # configure, is in config.log if it exists.
3265 EOD
3266
3267 preserve_env() {
3268     envname=$1
3269
3270     eval envval=\$$envname
3271
3272     if test -n "$envval"
3273     then
3274         echo "$envname='$envval'" >> config.status
3275         echo "export $envname" >> config.status
3276     else
3277         echo "unset $envname" >> config.status
3278     fi
3279 }
3280
3281 # Preserve various env variables that influence what
3282 # features/build target configure will detect
3283 preserve_env AR
3284 preserve_env AS
3285 preserve_env CC
3286 preserve_env CPP
3287 preserve_env CFLAGS
3288 preserve_env CXX
3289 preserve_env CXXFLAGS
3290 preserve_env INSTALL
3291 preserve_env LD
3292 preserve_env LDFLAGS
3293 preserve_env LD_LIBRARY_PATH
3294 preserve_env LIBTOOL
3295 preserve_env MAKE
3296 preserve_env NM
3297 preserve_env OBJCOPY
3298 preserve_env PATH
3299 preserve_env PKG_CONFIG
3300 preserve_env PKG_CONFIG_LIBDIR
3301 preserve_env PKG_CONFIG_PATH
3302 preserve_env PYTHON
3303 preserve_env SDL2_CONFIG
3304 preserve_env SMBD
3305 preserve_env STRIP
3306 preserve_env WINDRES
3307
3308 printf "exec" >>config.status
3309 for i in "$0" "$@"; do
3310   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
3311 done
3312 echo ' "$@"' >>config.status
3313 chmod +x config.status
3314
3315 rm -r "$TMPDIR1"