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   local 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 }
 124
 125 do_compiler_werror() {
 126     # Run the compiler, capturing its output to the log. First argument
 127     # is compiler binary to execute.
 128     compiler="$1"
 129     shift
 130     if test -n "$BASH_VERSION"; then eval '
 131         echo >>config.log "
 132 funcs: ${FUNCNAME[*]}
 133 lines: ${BASH_LINENO[*]}"
 134     '; fi
 135     echo $compiler "$@" >> config.log
 136     $compiler "$@" >> config.log 2>&1 || return $?
 137     # Test passed. If this is an --enable-werror build, rerun
 138     # the test with -Werror and bail out if it fails. This
 139     # makes warning-generating-errors in configure test code
 140     # obvious to developers.
 141     if test "$werror" != "yes"; then
 142         return 0
 143     fi
 144     # Don't bother rerunning the compile if we were already using -Werror
 145     case "$*" in
 146         *-Werror*)
 147            return 0
 148         ;;
 149     esac
 150     echo $compiler -Werror "$@" >> config.log
 151     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 152     error_exit "configure test passed without -Werror but failed with -Werror." \
 153         "This is probably a bug in the configure script. The failing command" \
 154         "will be at the bottom of config.log." \
 155         "You can run configure with --disable-werror to bypass this check."
 156 }
 157
 158 do_cc() {
 159     do_compiler_werror "$cc" $CPU_CFLAGS "$@"
 160 }
 161
 162 do_cxx() {
 163     do_compiler_werror "$cxx" $CPU_CFLAGS "$@"
 164 }
 165
 166 do_objc() {
 167     do_compiler_werror "$objcc" $CPU_CFLAGS "$@"
 168 }
 169
 170 # Append $2 to the variable named $1, with space separation
 171 add_to() {
 172     eval $1=\${$1:+\"\$$1 \"}\$2
 173 }
 174
 175 update_cxxflags() {
 176     # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
 177     # options which some versions of GCC's C++ compiler complain about
 178     # because they only make sense for C programs.
 179     QEMU_CXXFLAGS="-D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
 180     CONFIGURE_CXXFLAGS=$(echo "$CONFIGURE_CFLAGS" | sed s/-std=gnu11/-std=gnu++11/)
 181     for arg in $QEMU_CFLAGS; do
 182         case $arg in
 183             -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
 184             -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
 185                 ;;
 186             *)
 187                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
 188                 ;;
 189         esac
 190     done
 191 }
 192
 193 compile_object() {
 194   local_cflags="$1"
 195   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 196 }
 197
 198 compile_prog() {
 199   local_cflags="$1"
 200   local_ldflags="$2"
 201   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 202       $LDFLAGS $EXTRA_LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 203 }
 204
 205 # symbolically link $1 to $2.  Portable version of "ln -sf".
 206 symlink() {
 207   rm -rf "$2"
 208   mkdir -p "$(dirname "$2")"
 209   ln -s "$1" "$2"
 210 }
 211
 212 # check whether a command is available to this shell (may be either an
 213 # executable or a builtin)
 214 has() {
 215     type "$1" >/dev/null 2>&1
 216 }
 217
 218 version_ge () {
 219     local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
 220     local_ver2=$(echo "$2" | tr . ' ')
 221     while true; do
 222         set x $local_ver1
 223         local_first=${2-0}
 224         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 225         shift ${2:+2}
 226         local_ver1=$*
 227         set x $local_ver2
 228         # the second argument finished, the first must be greater or equal
 229         test $# = 1 && return 0
 230         test $local_first -lt $2 && return 1
 231         test $local_first -gt $2 && return 0
 232         shift ${2:+2}
 233         local_ver2=$*
 234     done
 235 }
 236
 237 glob() {
 238     eval test -z '"${1#'"$2"'}"'
 239 }
 240
 241 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 242 then
 243   error_exit "main directory cannot contain spaces nor colons"
 244 fi
 245
 246 # default parameters
 247 cpu=""
 248 static="no"
 249 cross_compile="no"
 250 cross_prefix=""
 251 host_cc="cc"
 252 stack_protector=""
 253 safe_stack=""
 254 use_containers="yes"
 255 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 256
 257 if test -e "$source_path/.git"
 258 then
 259     git_submodules_action="update"
 260 else
 261     git_submodules_action="ignore"
 262 fi
 263
 264 git_submodules="ui/keycodemapdb"
 265 git="git"
 266
 267 # Don't accept a target_list environment variable.
 268 unset target_list
 269 unset target_list_exclude
 270
 271 # Default value for a variable defining feature "foo".
 272 #  * foo="no"  feature will only be used if --enable-foo arg is given
 273 #  * foo=""    feature will be searched for, and if found, will be used
 274 #              unless --disable-foo is given
 275 #  * foo="yes" this value will only be set by --enable-foo flag.
 276 #              feature will searched for,
 277 #              if not found, configure exits with error
 278 #
 279 # Always add --enable-foo and --disable-foo command line args.
 280 # Distributions want to ensure that several features are compiled in, and it
 281 # is impossible without a --enable-foo that exits if a feature is not found.
 282
 283 default_feature=""
 284 # parse CC options second
 285 for opt do
 286   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 287   case "$opt" in
 288       --without-default-features)
 289           default_feature="no"
 290   ;;
 291   esac
 292 done
 293
 294 EXTRA_CFLAGS=""
 295 EXTRA_CXXFLAGS=""
 296 EXTRA_OBJCFLAGS=""
 297 EXTRA_LDFLAGS=""
 298
 299 debug_tcg="no"
 300 sanitizers="no"
 301 tsan="no"
 302 fortify_source="yes"
 303 EXESUF=""
 304 modules="no"
 305 prefix="/usr/local"
 306 qemu_suffix="qemu"
 307 softmmu="yes"
 308 linux_user=""
 309 bsd_user=""
 310 pie=""
 311 coroutine=""
 312 plugins="$default_feature"
 313 meson=""
 314 meson_args=""
 315 ninja=""
 316 bindir="bin"
 317 skip_meson=no
 318 vfio_user_server="disabled"
 319
 320 # The following Meson options are handled manually (still they
 321 # are included in the automatically generated help message)
 322
 323 # 1. Track which submodules are needed
 324 if test "$default_feature" = no ; then
 325   slirp="disabled"
 326 else
 327   slirp="auto"
 328 fi
 329 fdt="auto"
 330
 331 # 2. Automatically enable/disable other options
 332 tcg="enabled"
 333 cfi="false"
 334
 335 # parse CC options second
 336 for opt do
 337   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 338   case "$opt" in
 339   --cross-prefix=*) cross_prefix="$optarg"
 340                     cross_compile="yes"
 341   ;;
 342   --cc=*) CC="$optarg"
 343   ;;
 344   --cxx=*) CXX="$optarg"
 345   ;;
 346   --cpu=*) cpu="$optarg"
 347   ;;
 348   --extra-cflags=*)
 349     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 350     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 351     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 352     ;;
 353   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 354   ;;
 355   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 356   ;;
 357   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 358   ;;
 359   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 360   ;;
 361   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 362                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 363   ;;
 364   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 365                 eval "cross_cc_${cc_arch}=\$optarg"
 366   ;;
 367   --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
 368   ;;
 369   --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
 370                     eval "cross_prefix_${cc_arch}=\$optarg"
 371   ;;
 372   esac
 373 done
 374 # OS specific
 375 # Using uname is really, really broken.  Once we have the right set of checks
 376 # we can eliminate its usage altogether.
 377
 378 # Preferred compiler:
 379 #  ${CC} (if set)
 380 #  ${cross_prefix}gcc (if cross-prefix specified)
 381 #  system compiler
 382 if test -z "${CC}${cross_prefix}"; then
 383   cc="$host_cc"
 384 else
 385   cc="${CC-${cross_prefix}gcc}"
 386 fi
 387
 388 if test -z "${CXX}${cross_prefix}"; then
 389   cxx="c++"
 390 else
 391   cxx="${CXX-${cross_prefix}g++}"
 392 fi
 393
 394 ar="${AR-${cross_prefix}ar}"
 395 as="${AS-${cross_prefix}as}"
 396 ccas="${CCAS-$cc}"
 397 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 398 ld="${LD-${cross_prefix}ld}"
 399 ranlib="${RANLIB-${cross_prefix}ranlib}"
 400 nm="${NM-${cross_prefix}nm}"
 401 smbd="$SMBD"
 402 strip="${STRIP-${cross_prefix}strip}"
 403 widl="${WIDL-${cross_prefix}widl}"
 404 windres="${WINDRES-${cross_prefix}windres}"
 405 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 406 query_pkg_config() {
 407     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 408 }
 409 pkg_config=query_pkg_config
 410 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 411
 412 # default flags for all hosts
 413 # We use -fwrapv to tell the compiler that we require a C dialect where
 414 # left shift of signed integers is well defined and has the expected
 415 # 2s-complement style results. (Both clang and gcc agree that it
 416 # provides these semantics.)
 417 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 418 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 419 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 420 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 421
 422 QEMU_LDFLAGS=
 423
 424 # Flags that are needed during configure but later taken care of by Meson
 425 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 426 CONFIGURE_LDFLAGS=
 427
 428
 429 check_define() {
 430 cat > $TMPC <<EOF
 431 #if !defined($1)
 432 #error $1 not defined
 433 #endif
 434 int main(void) { return 0; }
 435 EOF
 436   compile_object
 437 }
 438
 439 check_include() {
 440 cat > $TMPC <<EOF
 441 #include <$1>
 442 int main(void) { return 0; }
 443 EOF
 444   compile_object
 445 }
 446
 447 write_c_skeleton() {
 448     cat > $TMPC <<EOF
 449 int main(void) { return 0; }
 450 EOF
 451 }
 452
 453 if check_define __linux__ ; then
 454   targetos=linux
 455 elif check_define _WIN32 ; then
 456   targetos=windows
 457 elif check_define __OpenBSD__ ; then
 458   targetos=openbsd
 459 elif check_define __sun__ ; then
 460   targetos=sunos
 461 elif check_define __HAIKU__ ; then
 462   targetos=haiku
 463 elif check_define __FreeBSD__ ; then
 464   targetos=freebsd
 465 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 466   targetos=gnu/kfreebsd
 467 elif check_define __DragonFly__ ; then
 468   targetos=dragonfly
 469 elif check_define __NetBSD__; then
 470   targetos=netbsd
 471 elif check_define __APPLE__; then
 472   targetos=darwin
 473 else
 474   # This is a fatal error, but don't report it yet, because we
 475   # might be going to just print the --help text, or it might
 476   # be the result of a missing compiler.
 477   targetos=bogus
 478 fi
 479
 480 # OS specific
 481
 482 mingw32="no"
 483 bsd="no"
 484 linux="no"
 485 solaris="no"
 486 case $targetos in
 487 windows)
 488   mingw32="yes"
 489   plugins="no"
 490   pie="no"
 491 ;;
 492 gnu/kfreebsd)
 493   bsd="yes"
 494 ;;
 495 freebsd)
 496   bsd="yes"
 497   make="${MAKE-gmake}"
 498   # needed for kinfo_getvmmap(3) in libutil.h
 499 ;;
 500 dragonfly)
 501   bsd="yes"
 502   make="${MAKE-gmake}"
 503 ;;
 504 netbsd)
 505   bsd="yes"
 506   make="${MAKE-gmake}"
 507 ;;
 508 openbsd)
 509   bsd="yes"
 510   make="${MAKE-gmake}"
 511 ;;
 512 darwin)
 513   bsd="yes"
 514   darwin="yes"
 515   # Disable attempts to use ObjectiveC features in os/object.h since they
 516   # won't work when we're compiling with gcc as a C compiler.
 517   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 518 ;;
 519 sunos)
 520   solaris="yes"
 521   make="${MAKE-gmake}"
 522 # needed for CMSG_ macros in sys/socket.h
 523   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 524 # needed for TIOCWIN* defines in termios.h
 525   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 526   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 527   # Note that this check is broken for cross-compilation: if you're
 528   # cross-compiling to one of these OSes then you'll need to specify
 529   # the correct CPU with the --cpu option.
 530   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 531     cpu="x86_64"
 532   fi
 533 ;;
 534 haiku)
 535   pie="no"
 536   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 537 ;;
 538 linux)
 539   linux="yes"
 540 ;;
 541 esac
 542
 543 if test ! -z "$cpu" ; then
 544   # command line argument
 545   :
 546 elif check_define __i386__ ; then
 547   cpu="i386"
 548 elif check_define __x86_64__ ; then
 549   if check_define __ILP32__ ; then
 550     cpu="x32"
 551   else
 552     cpu="x86_64"
 553   fi
 554 elif check_define __sparc__ ; then
 555   if check_define __arch64__ ; then
 556     cpu="sparc64"
 557   else
 558     cpu="sparc"
 559   fi
 560 elif check_define _ARCH_PPC ; then
 561   if check_define _ARCH_PPC64 ; then
 562     if check_define _LITTLE_ENDIAN ; then
 563       cpu="ppc64le"
 564     else
 565       cpu="ppc64"
 566     fi
 567   else
 568     cpu="ppc"
 569   fi
 570 elif check_define __mips__ ; then
 571   cpu="mips"
 572 elif check_define __s390__ ; then
 573   if check_define __s390x__ ; then
 574     cpu="s390x"
 575   else
 576     cpu="s390"
 577   fi
 578 elif check_define __riscv ; then
 579   cpu="riscv"
 580 elif check_define __arm__ ; then
 581   cpu="arm"
 582 elif check_define __aarch64__ ; then
 583   cpu="aarch64"
 584 elif check_define __loongarch64 ; then
 585   cpu="loongarch64"
 586 else
 587   cpu=$(uname -m)
 588 fi
 589
 590 # Normalise host CPU name, set multilib cflags
 591 # Note that this case should only have supported host CPUs, not guests.
 592 case "$cpu" in
 593   armv*b|armv*l|arm)
 594     cpu="arm" ;;
 595
 596   i386|i486|i586|i686|i86pc|BePC)
 597     cpu="i386"
 598     CPU_CFLAGS="-m32" ;;
 599   x32)
 600     cpu="x86_64"
 601     CPU_CFLAGS="-mx32" ;;
 602   x86_64|amd64)
 603     cpu="x86_64"
 604     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 605     # If we truly care, we should simply detect this case at
 606     # runtime and generate the fallback to serial emulation.
 607     CPU_CFLAGS="-m64 -mcx16" ;;
 608
 609   mips*)
 610     cpu="mips" ;;
 611
 612   ppc)
 613     CPU_CFLAGS="-m32" ;;
 614   ppc64)
 615     CPU_CFLAGS="-m64 -mbig-endian" ;;
 616   ppc64le)
 617     cpu="ppc64"
 618     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 619
 620   s390)
 621     CPU_CFLAGS="-m31" ;;
 622   s390x)
 623     CPU_CFLAGS="-m64" ;;
 624
 625   sparc|sun4[cdmuv])
 626     cpu="sparc"
 627     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 628   sparc64)
 629     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 630 esac
 631
 632 : ${make=${MAKE-make}}
 633
 634 # We prefer python 3.x. A bare 'python' is traditionally
 635 # python 2.x, but some distros have it as python 3.x, so
 636 # we check that too
 637 python=
 638 explicit_python=no
 639 for binary in "${PYTHON-python3}" python
 640 do
 641     if has "$binary"
 642     then
 643         python=$(command -v "$binary")
 644         break
 645     fi
 646 done
 647
 648
 649 # Check for ancillary tools used in testing
 650 genisoimage=
 651 for binary in genisoimage mkisofs
 652 do
 653     if has $binary
 654     then
 655         genisoimage=$(command -v "$binary")
 656         break
 657     fi
 658 done
 659
 660 # Default objcc to clang if available, otherwise use CC
 661 if has clang; then
 662   objcc=clang
 663 else
 664   objcc="$cc"
 665 fi
 666
 667 if test "$mingw32" = "yes" ; then
 668   EXESUF=".exe"
 669   # MinGW needs -mthreads for TLS and macro _MT.
 670   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 671   write_c_skeleton;
 672   prefix="/qemu"
 673   bindir=""
 674   qemu_suffix=""
 675 fi
 676
 677 werror=""
 678
 679 . $source_path/scripts/meson-buildoptions.sh
 680
 681 meson_options=
 682 meson_option_add() {
 683   meson_options="$meson_options $(quote_sh "$1")"
 684 }
 685 meson_option_parse() {
 686   meson_options="$meson_options $(_meson_option_parse "$@")"
 687   if test $? -eq 1; then
 688     echo "ERROR: unknown option $1"
 689     echo "Try '$0 --help' for more information"
 690     exit 1
 691   fi
 692 }
 693
 694 for opt do
 695   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 696   case "$opt" in
 697   --help|-h) show_help=yes
 698   ;;
 699   --version|-V) exec cat $source_path/VERSION
 700   ;;
 701   --prefix=*) prefix="$optarg"
 702   ;;
 703   --cross-prefix=*)
 704   ;;
 705   --cc=*)
 706   ;;
 707   --host-cc=*) host_cc="$optarg"
 708   ;;
 709   --cxx=*)
 710   ;;
 711   --objcc=*) objcc="$optarg"
 712   ;;
 713   --make=*) make="$optarg"
 714   ;;
 715   --install=*)
 716   ;;
 717   --python=*) python="$optarg" ; explicit_python=yes
 718   ;;
 719   --skip-meson) skip_meson=yes
 720   ;;
 721   --meson=*) meson="$optarg"
 722   ;;
 723   --ninja=*) ninja="$optarg"
 724   ;;
 725   --smbd=*) smbd="$optarg"
 726   ;;
 727   --extra-cflags=*)
 728   ;;
 729   --extra-cxxflags=*)
 730   ;;
 731   --extra-objcflags=*)
 732   ;;
 733   --extra-ldflags=*)
 734   ;;
 735   --cross-cc-*)
 736   ;;
 737   --cross-prefix-*)
 738   ;;
 739   --enable-debug-info) meson_option_add -Ddebug=true
 740   ;;
 741   --disable-debug-info) meson_option_add -Ddebug=false
 742   ;;
 743   --enable-modules)
 744       modules="yes"
 745   ;;
 746   --disable-modules)
 747       modules="no"
 748   ;;
 749   --cpu=*)
 750   ;;
 751   --target-list=*) target_list="$optarg"
 752                    if test "$target_list_exclude"; then
 753                        error_exit "Can't mix --target-list with --target-list-exclude"
 754                    fi
 755   ;;
 756   --target-list-exclude=*) target_list_exclude="$optarg"
 757                    if test "$target_list"; then
 758                        error_exit "Can't mix --target-list-exclude with --target-list"
 759                    fi
 760   ;;
 761   --with-default-devices) meson_option_add -Ddefault_devices=true
 762   ;;
 763   --without-default-devices) meson_option_add -Ddefault_devices=false
 764   ;;
 765   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 766   ;;
 767   --with-devices-*) device_arch=${opt#--with-devices-};
 768                     device_arch=${device_arch%%=*}
 769                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 770                     if test -f "$cf"; then
 771                         device_archs="$device_archs $device_arch"
 772                         eval "devices_${device_arch}=\$optarg"
 773                     else
 774                         error_exit "File $cf does not exist"
 775                     fi
 776   ;;
 777   --without-default-features) # processed above
 778   ;;
 779   --static)
 780     static="yes"
 781     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 782   ;;
 783   --bindir=*) bindir="$optarg"
 784   ;;
 785   --with-suffix=*) qemu_suffix="$optarg"
 786   ;;
 787   --host=*|--build=*|\
 788   --disable-dependency-tracking|\
 789   --sbindir=*|--sharedstatedir=*|\
 790   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 791   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 792     # These switches are silently ignored, for compatibility with
 793     # autoconf-generated configure scripts. This allows QEMU's
 794     # configure to be used by RPM and similar macros that set
 795     # lots of directory switches by default.
 796   ;;
 797   --enable-debug-tcg) debug_tcg="yes"
 798   ;;
 799   --disable-debug-tcg) debug_tcg="no"
 800   ;;
 801   --enable-debug)
 802       # Enable debugging options that aren't excessively noisy
 803       debug_tcg="yes"
 804       meson_option_parse --enable-debug-mutex ""
 805       meson_option_add -Doptimization=0
 806       fortify_source="no"
 807   ;;
 808   --enable-sanitizers) sanitizers="yes"
 809   ;;
 810   --disable-sanitizers) sanitizers="no"
 811   ;;
 812   --enable-tsan) tsan="yes"
 813   ;;
 814   --disable-tsan) tsan="no"
 815   ;;
 816   --disable-slirp) slirp="disabled"
 817   ;;
 818   --enable-slirp) slirp="enabled"
 819   ;;
 820   --enable-slirp=git) slirp="internal"
 821   ;;
 822   --enable-slirp=*) slirp="$optarg"
 823   ;;
 824   --disable-tcg) tcg="disabled"
 825                  plugins="no"
 826   ;;
 827   --enable-tcg) tcg="enabled"
 828   ;;
 829   --disable-system) softmmu="no"
 830   ;;
 831   --enable-system) softmmu="yes"
 832   ;;
 833   --disable-user)
 834       linux_user="no" ;
 835       bsd_user="no" ;
 836   ;;
 837   --enable-user) ;;
 838   --disable-linux-user) linux_user="no"
 839   ;;
 840   --enable-linux-user) linux_user="yes"
 841   ;;
 842   --disable-bsd-user) bsd_user="no"
 843   ;;
 844   --enable-bsd-user) bsd_user="yes"
 845   ;;
 846   --enable-pie) pie="yes"
 847   ;;
 848   --disable-pie) pie="no"
 849   ;;
 850   --enable-werror) werror="yes"
 851   ;;
 852   --disable-werror) werror="no"
 853   ;;
 854   --enable-stack-protector) stack_protector="yes"
 855   ;;
 856   --disable-stack-protector) stack_protector="no"
 857   ;;
 858   --enable-safe-stack) safe_stack="yes"
 859   ;;
 860   --disable-safe-stack) safe_stack="no"
 861   ;;
 862   --enable-cfi)
 863       cfi="true";
 864       meson_option_add -Db_lto=true
 865   ;;
 866   --disable-cfi) cfi="false"
 867   ;;
 868   --disable-fdt) fdt="disabled"
 869   ;;
 870   --enable-fdt) fdt="enabled"
 871   ;;
 872   --enable-fdt=git) fdt="internal"
 873   ;;
 874   --enable-fdt=*) fdt="$optarg"
 875   ;;
 876   --with-coroutine=*) coroutine="$optarg"
 877   ;;
 878   --disable-zlib-test)
 879   ;;
 880   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
 881       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
 882   ;;
 883   --enable-vhdx|--disable-vhdx)
 884       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
 885   ;;
 886   --enable-uuid|--disable-uuid)
 887       echo "$0: $opt is obsolete, UUID support is always built" >&2
 888   ;;
 889   --with-git=*) git="$optarg"
 890   ;;
 891   --with-git-submodules=*)
 892       git_submodules_action="$optarg"
 893   ;;
 894   --enable-plugins) if test "$mingw32" = "yes"; then
 895                         error_exit "TCG plugins not currently supported on Windows platforms"
 896                     else
 897                         plugins="yes"
 898                     fi
 899   ;;
 900   --disable-plugins) plugins="no"
 901   ;;
 902   --enable-containers) use_containers="yes"
 903   ;;
 904   --disable-containers) use_containers="no"
 905   ;;
 906   --gdb=*) gdb_bin="$optarg"
 907   ;;
 908   # backwards compatibility options
 909   --enable-trace-backend=*) meson_option_parse "--enable-trace-backends=$optarg" "$optarg"
 910   ;;
 911   --disable-blobs) meson_option_parse --disable-install-blobs ""
 912   ;;
 913   --enable-vfio-user-server) vfio_user_server="enabled"
 914   ;;
 915   --disable-vfio-user-server) vfio_user_server="disabled"
 916   ;;
 917   --enable-tcmalloc) meson_option_parse --enable-malloc=tcmalloc tcmalloc
 918   ;;
 919   --enable-jemalloc) meson_option_parse --enable-malloc=jemalloc jemalloc
 920   ;;
 921   # everything else has the same name in configure and meson
 922   --*) meson_option_parse "$opt" "$optarg"
 923   ;;
 924   esac
 925 done
 926
 927 # test for any invalid configuration combinations
 928 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
 929     error_exit "Can't enable plugins on non-TCG builds"
 930 fi
 931
 932 case $git_submodules_action in
 933     update|validate)
 934         if test ! -e "$source_path/.git"; then
 935             echo "ERROR: cannot $git_submodules_action git submodules without .git"
 936             exit 1
 937         fi
 938     ;;
 939     ignore)
 940         if ! test -f "$source_path/ui/keycodemapdb/README"
 941         then
 942             echo
 943             echo "ERROR: missing GIT submodules"
 944             echo
 945             if test -e "$source_path/.git"; then
 946                 echo "--with-git-submodules=ignore specified but submodules were not"
 947                 echo "checked out.  Please initialize and update submodules."
 948             else
 949                 echo "This is not a GIT checkout but module content appears to"
 950                 echo "be missing. Do not use 'git archive' or GitHub download links"
 951                 echo "to acquire QEMU source archives. Non-GIT builds are only"
 952                 echo "supported with source archives linked from:"
 953                 echo
 954                 echo "  https://www.qemu.org/download/#source"
 955                 echo
 956                 echo "Developers working with GIT can use scripts/archive-source.sh"
 957                 echo "if they need to create valid source archives."
 958             fi
 959             echo
 960             exit 1
 961         fi
 962     ;;
 963     *)
 964         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
 965         exit 1
 966     ;;
 967 esac
 968
 969 default_target_list=""
 970 mak_wilds=""
 971
 972 if [ "$linux_user" != no ]; then
 973     if [ "$targetos" = linux ] && [ -d $source_path/linux-user/include/host/$cpu ]; then
 974         linux_user=yes
 975     elif [ "$linux_user" = yes ]; then
 976         error_exit "linux-user not supported on this architecture"
 977     fi
 978 fi
 979 if [ "$bsd_user" != no ]; then
 980     if [ "$bsd_user" = "" ]; then
 981         test $targetos = freebsd && bsd_user=yes
 982     fi
 983     if [ "$bsd_user" = yes ] && ! [ -d $source_path/bsd-user/$targetos ]; then
 984         error_exit "bsd-user not supported on this host OS"
 985     fi
 986 fi
 987 if [ "$softmmu" = "yes" ]; then
 988     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 989 fi
 990 if [ "$linux_user" = "yes" ]; then
 991     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 992 fi
 993 if [ "$bsd_user" = "yes" ]; then
 994     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 995 fi
 996
 997 for config in $mak_wilds; do
 998     target="$(basename "$config" .mak)"
 999     if echo "$target_list_exclude" | grep -vq "$target"; then
1000         default_target_list="${default_target_list} $target"
1001     fi
1002 done
1003
1004 if test x"$show_help" = x"yes" ; then
1005 cat << EOF
1006
1007 Usage: configure [options]
1008 Options: [defaults in brackets after descriptions]
1009
1010 Standard options:
1011   --help                   print this message
1012   --prefix=PREFIX          install in PREFIX [$prefix]
1013   --target-list=LIST       set target list (default: build all)
1014 $(echo Available targets: $default_target_list | \
1015   fold -s -w 53 | sed -e 's/^/                           /')
1016   --target-list-exclude=LIST exclude a set of targets from the default target-list
1017
1018 Advanced options (experts only):
1019   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1020   --cc=CC                  use C compiler CC [$cc]
1021   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1022                            build time
1023   --cxx=CXX                use C++ compiler CXX [$cxx]
1024   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1025   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
1026   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
1027   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
1028   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1029   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1030   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
1031   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
1032   --make=MAKE              use specified make [$make]
1033   --python=PYTHON          use specified python [$python]
1034   --meson=MESON            use specified meson [$meson]
1035   --ninja=NINJA            use specified ninja [$ninja]
1036   --smbd=SMBD              use specified smbd [$smbd]
1037   --with-git=GIT           use specified git [$git]
1038   --with-git-submodules=update   update git submodules (default if .git dir exists)
1039   --with-git-submodules=validate fail if git submodules are not up to date
1040   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1041   --static                 enable static build [$static]
1042   --bindir=PATH            install binaries in PATH
1043   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1044   --without-default-features default all --enable-* options to "disabled"
1045   --without-default-devices  do not include any device that is not needed to
1046                            start the emulator (only use if you are including
1047                            desired devices in configs/devices/)
1048   --with-devices-ARCH=NAME override default configs/devices
1049   --enable-debug           enable common debug build options
1050   --enable-sanitizers      enable default sanitizers
1051   --enable-tsan            enable thread sanitizer
1052   --disable-werror         disable compilation abort on warning
1053   --disable-stack-protector disable compiler-provided stack protection
1054   --cpu=CPU                Build for host CPU [$cpu]
1055   --with-coroutine=BACKEND coroutine backend. Supported options:
1056                            ucontext, sigaltstack, windows
1057   --enable-plugins
1058                            enable plugins via shared library loading
1059   --disable-containers     don't use containers for cross-building
1060   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1061 EOF
1062   meson_options_help
1063 cat << EOF
1064   system          all system emulation targets
1065   user            supported user emulation targets
1066   linux-user      all linux usermode emulation targets
1067   bsd-user        all BSD usermode emulation targets
1068   pie             Position Independent Executables
1069   modules         modules support (non-Windows)
1070   debug-tcg       TCG debugging (default is disabled)
1071   debug-info      debugging information
1072   safe-stack      SafeStack Stack Smash Protection. Depends on
1073                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1074
1075 NOTE: The object files are built at the place where configure is launched
1076 EOF
1077 exit 0
1078 fi
1079
1080 # Remove old dependency files to make sure that they get properly regenerated
1081 rm -f */config-devices.mak.d
1082
1083 if test -z "$python"
1084 then
1085     error_exit "Python not found. Use --python=/path/to/python"
1086 fi
1087 if ! has "$make"
1088 then
1089     error_exit "GNU make ($make) not found"
1090 fi
1091
1092 # Note that if the Python conditional here evaluates True we will exit
1093 # with status 1 which is a shell 'false' value.
1094 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1095   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1096       "Use --python=/path/to/python to specify a supported Python."
1097 fi
1098
1099 # Preserve python version since some functionality is dependent on it
1100 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)
1101
1102 # Suppress writing compiled files
1103 python="$python -B"
1104
1105 if test -z "$meson"; then
1106     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.59.3; then
1107         meson=meson
1108     elif test $git_submodules_action != 'ignore' ; then
1109         meson=git
1110     elif test -e "${source_path}/meson/meson.py" ; then
1111         meson=internal
1112     else
1113         if test "$explicit_python" = yes; then
1114             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1115         else
1116             error_exit "Meson not found.  Use --meson=/path/to/meson"
1117         fi
1118     fi
1119 else
1120     # Meson uses its own Python interpreter to invoke other Python scripts,
1121     # but the user wants to use the one they specified with --python.
1122     #
1123     # We do not want to override the distro Python interpreter (and sometimes
1124     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1125     # just require --meson=git|internal together with --python.
1126     if test "$explicit_python" = yes; then
1127         case "$meson" in
1128             git | internal) ;;
1129             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1130         esac
1131     fi
1132 fi
1133
1134 if test "$meson" = git; then
1135     git_submodules="${git_submodules} meson"
1136 fi
1137
1138 case "$meson" in
1139     git | internal)
1140         meson="$python ${source_path}/meson/meson.py"
1141         ;;
1142     *) meson=$(command -v "$meson") ;;
1143 esac
1144
1145 # Probe for ninja
1146
1147 if test -z "$ninja"; then
1148     for c in ninja ninja-build samu; do
1149         if has $c; then
1150             ninja=$(command -v "$c")
1151             break
1152         fi
1153     done
1154     if test -z "$ninja"; then
1155       error_exit "Cannot find Ninja"
1156     fi
1157 fi
1158
1159 # Check that the C compiler works. Doing this here before testing
1160 # the host CPU ensures that we had a valid CC to autodetect the
1161 # $cpu var (and we should bail right here if that's not the case).
1162 # It also allows the help message to be printed without a CC.
1163 write_c_skeleton;
1164 if compile_object ; then
1165   : C compiler works ok
1166 else
1167     error_exit "\"$cc\" either does not exist or does not work"
1168 fi
1169 if ! compile_prog ; then
1170     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1171 fi
1172
1173 # Consult white-list to determine whether to enable werror
1174 # by default.  Only enable by default for git builds
1175 if test -z "$werror" ; then
1176     if test "$git_submodules_action" != "ignore" && \
1177         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1178         werror="yes"
1179     else
1180         werror="no"
1181     fi
1182 fi
1183
1184 if test "$targetos" = "bogus"; then
1185     # Now that we know that we're not printing the help and that
1186     # the compiler works (so the results of the check_defines we used
1187     # to identify the OS are reliable), if we didn't recognize the
1188     # host OS we should stop now.
1189     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1190 fi
1191
1192 # Check whether the compiler matches our minimum requirements:
1193 cat > $TMPC << EOF
1194 #if defined(__clang_major__) && defined(__clang_minor__)
1195 # ifdef __apple_build_version__
1196 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1197 #   error You need at least XCode Clang v10.0 to compile QEMU
1198 #  endif
1199 # else
1200 #  if __clang_major__ < 6 || (__clang_major__ == 6 && __clang_minor__ < 0)
1201 #   error You need at least Clang v6.0 to compile QEMU
1202 #  endif
1203 # endif
1204 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1205 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1206 #  error You need at least GCC v7.4.0 to compile QEMU
1207 # endif
1208 #else
1209 # error You either need GCC or Clang to compiler QEMU
1210 #endif
1211 int main (void) { return 0; }
1212 EOF
1213 if ! compile_prog "" "" ; then
1214     error_exit "You need at least GCC v7.4 or Clang v6.0 (or XCode Clang v10.0)"
1215 fi
1216
1217 # Accumulate -Wfoo and -Wno-bar separately.
1218 # We will list all of the enable flags first, and the disable flags second.
1219 # Note that we do not add -Werror, because that would enable it for all
1220 # configure tests. If a configure test failed due to -Werror this would
1221 # just silently disable some features, so it's too error prone.
1222
1223 warn_flags=
1224 add_to warn_flags -Wold-style-declaration
1225 add_to warn_flags -Wold-style-definition
1226 add_to warn_flags -Wtype-limits
1227 add_to warn_flags -Wformat-security
1228 add_to warn_flags -Wformat-y2k
1229 add_to warn_flags -Winit-self
1230 add_to warn_flags -Wignored-qualifiers
1231 add_to warn_flags -Wempty-body
1232 add_to warn_flags -Wnested-externs
1233 add_to warn_flags -Wendif-labels
1234 add_to warn_flags -Wexpansion-to-defined
1235 add_to warn_flags -Wimplicit-fallthrough=2
1236
1237 nowarn_flags=
1238 add_to nowarn_flags -Wno-initializer-overrides
1239 add_to nowarn_flags -Wno-missing-include-dirs
1240 add_to nowarn_flags -Wno-shift-negative-value
1241 add_to nowarn_flags -Wno-string-plus-int
1242 add_to nowarn_flags -Wno-typedef-redefinition
1243 add_to nowarn_flags -Wno-tautological-type-limit-compare
1244 add_to nowarn_flags -Wno-psabi
1245
1246 gcc_flags="$warn_flags $nowarn_flags"
1247
1248 cc_has_warning_flag() {
1249     write_c_skeleton;
1250
1251     # Use the positive sense of the flag when testing for -Wno-wombat
1252     # support (gcc will happily accept the -Wno- form of unknown
1253     # warning options).
1254     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1255     compile_prog "-Werror $optflag" ""
1256 }
1257
1258 objcc_has_warning_flag() {
1259     cat > $TMPM <<EOF
1260 int main(void) { return 0; }
1261 EOF
1262
1263     # Use the positive sense of the flag when testing for -Wno-wombat
1264     # support (gcc will happily accept the -Wno- form of unknown
1265     # warning options).
1266     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1267     do_objc -Werror $optflag \
1268       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1269       -o $TMPE $TMPM $QEMU_LDFLAGS
1270 }
1271
1272 for flag in $gcc_flags; do
1273     if cc_has_warning_flag $flag ; then
1274         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1275     fi
1276     if objcc_has_warning_flag $flag ; then
1277         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1278     fi
1279 done
1280
1281 if test "$stack_protector" != "no"; then
1282   cat > $TMPC << EOF
1283 int main(int argc, char *argv[])
1284 {
1285     char arr[64], *p = arr, *c = argv[0];
1286     while (*c) {
1287         *p++ = *c++;
1288     }
1289     return 0;
1290 }
1291 EOF
1292   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1293   sp_on=0
1294   for flag in $gcc_flags; do
1295     # We need to check both a compile and a link, since some compiler
1296     # setups fail only on a .c->.o compile and some only at link time
1297     if compile_object "-Werror $flag" &&
1298        compile_prog "-Werror $flag" ""; then
1299       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1300       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1301       sp_on=1
1302       break
1303     fi
1304   done
1305   if test "$stack_protector" = yes; then
1306     if test $sp_on = 0; then
1307       error_exit "Stack protector not supported"
1308     fi
1309   fi
1310 fi
1311
1312 # Disable -Wmissing-braces on older compilers that warn even for
1313 # the "universal" C zero initializer {0}.
1314 cat > $TMPC << EOF
1315 struct {
1316   int a[2];
1317 } x = {0};
1318 EOF
1319 if compile_object "-Werror" "" ; then
1320   :
1321 else
1322   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
1323 fi
1324
1325 # Our module code doesn't support Windows
1326 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1327   error_exit "Modules are not available for Windows"
1328 fi
1329
1330 # Static linking is not possible with plugins, modules or PIE
1331 if test "$static" = "yes" ; then
1332   if test "$modules" = "yes" ; then
1333     error_exit "static and modules are mutually incompatible"
1334   fi
1335   if test "$plugins" = "yes"; then
1336     error_exit "static and plugins are mutually incompatible"
1337   else
1338     plugins="no"
1339   fi
1340 fi
1341 test "$plugins" = "" && plugins=yes
1342
1343 cat > $TMPC << EOF
1344
1345 #ifdef __linux__
1346 #  define THREAD __thread
1347 #else
1348 #  define THREAD
1349 #endif
1350 static THREAD int tls_var;
1351 int main(void) { return tls_var; }
1352 EOF
1353
1354 if test "$static" = "yes"; then
1355   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1356     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1357     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
1358     pie="yes"
1359   elif test "$pie" = "yes"; then
1360     error_exit "-static-pie not available due to missing toolchain support"
1361   else
1362     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
1363     pie="no"
1364   fi
1365 elif test "$pie" = "no"; then
1366   if compile_prog "-Werror -fno-pie" "-no-pie"; then
1367     CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS"
1368     CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS"
1369   fi
1370 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1371   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1372   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1373   pie="yes"
1374 elif test "$pie" = "yes"; then
1375   error_exit "PIE not available due to missing toolchain support"
1376 else
1377   echo "Disabling PIE due to missing toolchain support"
1378   pie="no"
1379 fi
1380
1381 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
1382 # The combination is known as "full relro", because .got.plt is read-only too.
1383 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
1384   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
1385 fi
1386
1387 ##########################################
1388 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1389 # use i686 as default anyway, but for those that don't, an explicit
1390 # specification is necessary
1391
1392 if test "$cpu" = "i386"; then
1393   cat > $TMPC << EOF
1394 static int sfaa(int *ptr)
1395 {
1396   return __sync_fetch_and_and(ptr, 0);
1397 }
1398
1399 int main(void)
1400 {
1401   int val = 42;
1402   val = __sync_val_compare_and_swap(&val, 0, 1);
1403   sfaa(&val);
1404   return val;
1405 }
1406 EOF
1407   if ! compile_prog "" "" ; then
1408     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1409   fi
1410 fi
1411
1412 if test "$tcg" = "enabled"; then
1413     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1414     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1415 fi
1416
1417 if test -z "${target_list+xxx}" ; then
1418     default_targets=yes
1419     for target in $default_target_list; do
1420         target_list="$target_list $target"
1421     done
1422     target_list="${target_list# }"
1423 else
1424     default_targets=no
1425     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1426     for target in $target_list; do
1427         # Check that we recognised the target name; this allows a more
1428         # friendly error message than if we let it fall through.
1429         case " $default_target_list " in
1430             *" $target "*)
1431                 ;;
1432             *)
1433                 error_exit "Unknown target name '$target'"
1434                 ;;
1435         esac
1436     done
1437 fi
1438
1439 # see if system emulation was really requested
1440 case " $target_list " in
1441   *"-softmmu "*) softmmu=yes
1442   ;;
1443   *) softmmu=no
1444   ;;
1445 esac
1446
1447 feature_not_found() {
1448   feature=$1
1449   remedy=$2
1450
1451   error_exit "User requested feature $feature" \
1452       "configure was not able to find it." \
1453       "$remedy"
1454 }
1455
1456 # ---
1457 # big/little endian test
1458 cat > $TMPC << EOF
1459 #include <stdio.h>
1460 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
1461 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
1462 int main(int argc, char *argv[])
1463 {
1464     return printf("%s %s\n", (char *)big_endian, (char *)little_endian);
1465 }
1466 EOF
1467
1468 if compile_prog ; then
1469     if strings -a $TMPE | grep -q BiGeNdIaN ; then
1470         bigendian="yes"
1471     elif strings -a $TMPE | grep -q LiTtLeEnDiAn ; then
1472         bigendian="no"
1473     else
1474         echo big/little test failed
1475         exit 1
1476     fi
1477 else
1478     echo big/little test failed
1479     exit 1
1480 fi
1481
1482 ##########################################
1483 # pkg-config probe
1484
1485 if ! has "$pkg_config_exe"; then
1486   error_exit "pkg-config binary '$pkg_config_exe' not found"
1487 fi
1488
1489 ##########################################
1490 # glib support probe
1491
1492 # When bumping glib_req_ver, please check also whether we should increase
1493 # the _WIN32_WINNT setting in osdep.h according to the value from glib
1494 glib_req_ver=2.56
1495 glib_modules=gthread-2.0
1496 if test "$modules" = yes; then
1497     glib_modules="$glib_modules gmodule-export-2.0"
1498 elif test "$plugins" = "yes"; then
1499     glib_modules="$glib_modules gmodule-no-export-2.0"
1500 fi
1501
1502 for i in $glib_modules; do
1503     if $pkg_config --atleast-version=$glib_req_ver $i; then
1504         glib_cflags=$($pkg_config --cflags $i)
1505         glib_libs=$($pkg_config --libs $i)
1506     else
1507         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
1508     fi
1509 done
1510
1511 glib_bindir="$($pkg_config --variable=bindir glib-2.0)"
1512 if test -z "$glib_bindir" ; then
1513         glib_bindir="$($pkg_config --variable=prefix glib-2.0)"/bin
1514 fi
1515
1516 # This workaround is required due to a bug in pkg-config file for glib as it
1517 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
1518
1519 if test "$static" = yes && test "$mingw32" = yes; then
1520     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
1521 fi
1522
1523 # Sanity check that the current size_t matches the
1524 # size that glib thinks it should be. This catches
1525 # problems on multi-arch where people try to build
1526 # 32-bit QEMU while pointing at 64-bit glib headers
1527 cat > $TMPC <<EOF
1528 #include <glib.h>
1529 #include <unistd.h>
1530
1531 #define QEMU_BUILD_BUG_ON(x) \
1532   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
1533
1534 int main(void) {
1535    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
1536    return 0;
1537 }
1538 EOF
1539
1540 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
1541     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
1542                "You probably need to set PKG_CONFIG_LIBDIR"\
1543                "to point to the right pkg-config files for your"\
1544                "build target"
1545 fi
1546
1547 # Silence clang warnings triggered by glib < 2.57.2
1548 cat > $TMPC << EOF
1549 #include <glib.h>
1550 typedef struct Foo {
1551     int i;
1552 } Foo;
1553 static void foo_free(Foo *f)
1554 {
1555     g_free(f);
1556 }
1557 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
1558 int main(void) { return 0; }
1559 EOF
1560 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
1561     if cc_has_warning_flag "-Wno-unused-function"; then
1562         glib_cflags="$glib_cflags -Wno-unused-function"
1563         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
1564     fi
1565 fi
1566
1567 ##########################################
1568 # fdt probe
1569
1570 case "$fdt" in
1571   auto | enabled | internal)
1572     # Simpler to always update submodule, even if not needed.
1573     git_submodules="${git_submodules} dtc"
1574     ;;
1575 esac
1576
1577 ##########################################
1578 # check and set a backend for coroutine
1579
1580 # We prefer ucontext, but it's not always possible. The fallback
1581 # is sigcontext. On Windows the only valid backend is the Windows
1582 # specific one.
1583
1584 ucontext_works=no
1585 if test "$darwin" != "yes"; then
1586   cat > $TMPC << EOF
1587 #include <ucontext.h>
1588 #ifdef __stub_makecontext
1589 #error Ignoring glibc stub makecontext which will always fail
1590 #endif
1591 int main(void) { makecontext(0, 0, 0); return 0; }
1592 EOF
1593   if compile_prog "" "" ; then
1594     ucontext_works=yes
1595   fi
1596 fi
1597
1598 if test "$coroutine" = ""; then
1599   if test "$mingw32" = "yes"; then
1600     coroutine=win32
1601   elif test "$ucontext_works" = "yes"; then
1602     coroutine=ucontext
1603   else
1604     coroutine=sigaltstack
1605   fi
1606 else
1607   case $coroutine in
1608   windows)
1609     if test "$mingw32" != "yes"; then
1610       error_exit "'windows' coroutine backend only valid for Windows"
1611     fi
1612     # Unfortunately the user visible backend name doesn't match the
1613     # coroutine-*.c filename for this case, so we have to adjust it here.
1614     coroutine=win32
1615     ;;
1616   ucontext)
1617     if test "$ucontext_works" != "yes"; then
1618       feature_not_found "ucontext"
1619     fi
1620     ;;
1621   sigaltstack)
1622     if test "$mingw32" = "yes"; then
1623       error_exit "only the 'windows' coroutine backend is valid for Windows"
1624     fi
1625     ;;
1626   *)
1627     error_exit "unknown coroutine backend $coroutine"
1628     ;;
1629   esac
1630 fi
1631
1632 ##################################################
1633 # SafeStack
1634
1635
1636 if test "$safe_stack" = "yes"; then
1637 cat > $TMPC << EOF
1638 int main(int argc, char *argv[])
1639 {
1640 #if ! __has_feature(safe_stack)
1641 #error SafeStack Disabled
1642 #endif
1643     return 0;
1644 }
1645 EOF
1646   flag="-fsanitize=safe-stack"
1647   # Check that safe-stack is supported and enabled.
1648   if compile_prog "-Werror $flag" "$flag"; then
1649     # Flag needed both at compilation and at linking
1650     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1651     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1652   else
1653     error_exit "SafeStack not supported by your compiler"
1654   fi
1655   if test "$coroutine" != "ucontext"; then
1656     error_exit "SafeStack is only supported by the coroutine backend ucontext"
1657   fi
1658 else
1659 cat > $TMPC << EOF
1660 int main(int argc, char *argv[])
1661 {
1662 #if defined(__has_feature)
1663 #if __has_feature(safe_stack)
1664 #error SafeStack Enabled
1665 #endif
1666 #endif
1667     return 0;
1668 }
1669 EOF
1670 if test "$safe_stack" = "no"; then
1671   # Make sure that safe-stack is disabled
1672   if ! compile_prog "-Werror" ""; then
1673     # SafeStack was already enabled, try to explicitly remove the feature
1674     flag="-fno-sanitize=safe-stack"
1675     if ! compile_prog "-Werror $flag" "$flag"; then
1676       error_exit "Configure cannot disable SafeStack"
1677     fi
1678     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1679     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1680   fi
1681 else # "$safe_stack" = ""
1682   # Set safe_stack to yes or no based on pre-existing flags
1683   if compile_prog "-Werror" ""; then
1684     safe_stack="no"
1685   else
1686     safe_stack="yes"
1687     if test "$coroutine" != "ucontext"; then
1688       error_exit "SafeStack is only supported by the coroutine backend ucontext"
1689     fi
1690   fi
1691 fi
1692 fi
1693
1694 ########################################
1695 # check if ccache is interfering with
1696 # semantic analysis of macros
1697
1698 unset CCACHE_CPP2
1699 ccache_cpp2=no
1700 cat > $TMPC << EOF
1701 static const int Z = 1;
1702 #define fn() ({ Z; })
1703 #define TAUT(X) ((X) == Z)
1704 #define PAREN(X, Y) (X == Y)
1705 #define ID(X) (X)
1706 int main(int argc, char *argv[])
1707 {
1708     int x = 0, y = 0;
1709     x = ID(x);
1710     x = fn();
1711     fn();
1712     if (PAREN(x, y)) return 0;
1713     if (TAUT(Z)) return 0;
1714     return 0;
1715 }
1716 EOF
1717
1718 if ! compile_object "-Werror"; then
1719     ccache_cpp2=yes
1720 fi
1721
1722 #################################################
1723 # clang does not support glibc + FORTIFY_SOURCE.
1724
1725 if test "$fortify_source" != "no"; then
1726   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
1727     fortify_source="no";
1728   elif test -n "$cxx" && has $cxx &&
1729        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
1730     fortify_source="no";
1731   else
1732     fortify_source="yes"
1733   fi
1734 fi
1735
1736 ##########################################
1737 # checks for sanitizers
1738
1739 have_asan=no
1740 have_ubsan=no
1741 have_asan_iface_h=no
1742 have_asan_iface_fiber=no
1743
1744 if test "$sanitizers" = "yes" ; then
1745   write_c_skeleton
1746   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
1747       have_asan=yes
1748   fi
1749
1750   # we could use a simple skeleton for flags checks, but this also
1751   # detect the static linking issue of ubsan, see also:
1752   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
1753   cat > $TMPC << EOF
1754 #include <stdlib.h>
1755 int main(void) {
1756     void *tmp = malloc(10);
1757     if (tmp != NULL) {
1758         return *(int *)(tmp + 2);
1759     }
1760     return 1;
1761 }
1762 EOF
1763   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
1764       have_ubsan=yes
1765   fi
1766
1767   if check_include "sanitizer/asan_interface.h" ; then
1768       have_asan_iface_h=yes
1769   fi
1770
1771   cat > $TMPC << EOF
1772 #include <sanitizer/asan_interface.h>
1773 int main(void) {
1774   __sanitizer_start_switch_fiber(0, 0, 0);
1775   return 0;
1776 }
1777 EOF
1778   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
1779       have_asan_iface_fiber=yes
1780   fi
1781 fi
1782
1783 # Thread sanitizer is, for now, much noisier than the other sanitizers;
1784 # keep it separate until that is not the case.
1785 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
1786   error_exit "TSAN is not supported with other sanitiziers."
1787 fi
1788 have_tsan=no
1789 have_tsan_iface_fiber=no
1790 if test "$tsan" = "yes" ; then
1791   write_c_skeleton
1792   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1793       have_tsan=yes
1794   fi
1795   cat > $TMPC << EOF
1796 #include <sanitizer/tsan_interface.h>
1797 int main(void) {
1798   __tsan_create_fiber(0);
1799   return 0;
1800 }
1801 EOF
1802   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1803       have_tsan_iface_fiber=yes
1804   fi
1805 fi
1806
1807 ##########################################
1808 # check for slirp
1809
1810 case "$slirp" in
1811   auto | enabled | internal)
1812     # Simpler to always update submodule, even if not needed.
1813     git_submodules="${git_submodules} slirp"
1814     ;;
1815 esac
1816
1817 ##########################################
1818 # functions to probe cross compilers
1819
1820 container="no"
1821 if test $use_containers = "yes"; then
1822     if has "docker" || has "podman"; then
1823         container=$($python $source_path/tests/docker/docker.py probe)
1824     fi
1825 fi
1826
1827 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1828 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1829 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1830 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1831 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1832 : ${cross_prefix_armeb="$cross_prefix_arm"}
1833 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1834 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1835 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1836 : ${cross_prefix_i386="i686-linux-gnu-"}
1837 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1838 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1839 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1840 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1841 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1842 : ${cross_prefix_mips="mips-linux-gnu-"}
1843 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1844 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1845 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1846 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1847 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1848 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1849 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1850 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1851 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1852 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1853
1854 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1855 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1856 : ${cross_cc_armeb="$cross_cc_arm"}
1857 : ${cross_cc_cflags_armeb="-mbig-endian"}
1858 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1859 : ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
1860 : ${cross_cc_cflags_i386="-m32"}
1861 : ${cross_cc_cflags_ppc="-m32"}
1862 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1863 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1864 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1865 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1866 : ${cross_cc_sparc="$cross_cc_sparc64"}
1867 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1868 : ${cross_cc_cflags_x86_64="-m64"}
1869
1870 compute_target_variable() {
1871   if eval test -n "\"\${cross_prefix_$1}\""; then
1872     if eval has "\"\${cross_prefix_$1}\$3\""; then
1873       eval "$2=\"\${cross_prefix_$1}\$3\""
1874     fi
1875   fi
1876 }
1877
1878 probe_target_compiler() {
1879   # reset all output variables
1880   container_image=
1881   container_hosts=
1882   container_cross_cc=
1883   container_cross_ar=
1884   container_cross_as=
1885   container_cross_ld=
1886   container_cross_nm=
1887   container_cross_objcopy=
1888   container_cross_ranlib=
1889   container_cross_strip=
1890   target_cc=
1891   target_ar=
1892   target_as=
1893   target_ld=
1894   target_nm=
1895   target_objcopy=
1896   target_ranlib=
1897   target_strip=
1898
1899   case $1 in
1900     aarch64) container_hosts="x86_64 aarch64" ;;
1901     alpha) container_hosts=x86_64 ;;
1902     arm) container_hosts="x86_64 aarch64" ;;
1903     cris) container_hosts=x86_64 ;;
1904     hexagon) container_hosts=x86_64 ;;
1905     hppa) container_hosts=x86_64 ;;
1906     i386) container_hosts=x86_64 ;;
1907     m68k) container_hosts=x86_64 ;;
1908     microblaze) container_hosts=x86_64 ;;
1909     mips64el) container_hosts=x86_64 ;;
1910     mips64) container_hosts=x86_64 ;;
1911     mipsel) container_hosts=x86_64 ;;
1912     mips) container_hosts=x86_64 ;;
1913     nios2) container_hosts=x86_64 ;;
1914     ppc) container_hosts=x86_64 ;;
1915     ppc64|ppc64le) container_hosts=x86_64 ;;
1916     riscv64) container_hosts=x86_64 ;;
1917     s390x) container_hosts=x86_64 ;;
1918     sh4) container_hosts=x86_64 ;;
1919     sparc64) container_hosts=x86_64 ;;
1920     tricore) container_hosts=x86_64 ;;
1921     x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1922     xtensa*) container_hosts=x86_64 ;;
1923   esac
1924
1925   for host in $container_hosts; do
1926     test "$container" != no || continue
1927     test "$host" = "$cpu" || continue
1928     case $1 in
1929       aarch64)
1930         # We don't have any bigendian build tools so we only use this for AArch64
1931         container_image=debian-arm64-cross
1932         container_cross_prefix=aarch64-linux-gnu-
1933         container_cross_cc=${container_cross_prefix}gcc-10
1934         ;;
1935       alpha)
1936         container_image=debian-alpha-cross
1937         container_cross_prefix=alpha-linux-gnu-
1938         ;;
1939       arm)
1940         # We don't have any bigendian build tools so we only use this for ARM
1941         container_image=debian-armhf-cross
1942         container_cross_prefix=arm-linux-gnueabihf-
1943         ;;
1944       cris)
1945         container_image=fedora-cris-cross
1946         container_cross_prefix=cris-linux-gnu-
1947         ;;
1948       hexagon)
1949         container_image=debian-hexagon-cross
1950         container_cross_prefix=hexagon-unknown-linux-musl-
1951         container_cross_cc=${container_cross_prefix}clang
1952         ;;
1953       hppa)
1954         container_image=debian-hppa-cross
1955         container_cross_prefix=hppa-linux-gnu-
1956         ;;
1957       i386)
1958         container_image=fedora-i386-cross
1959         container_cross_prefix=
1960         ;;
1961       m68k)
1962         container_image=debian-m68k-cross
1963         container_cross_prefix=m68k-linux-gnu-
1964         ;;
1965       microblaze)
1966         container_image=debian-microblaze-cross
1967         container_cross_prefix=microblaze-linux-musl-
1968         ;;
1969       mips64el)
1970         container_image=debian-mips64el-cross
1971         container_cross_prefix=mips64el-linux-gnuabi64-
1972         ;;
1973       mips64)
1974         container_image=debian-mips64-cross
1975         container_cross_prefix=mips64-linux-gnuabi64-
1976         ;;
1977       mipsel)
1978         container_image=debian-mipsel-cross
1979         container_cross_prefix=mipsel-linux-gnu-
1980         ;;
1981       mips)
1982         container_image=debian-mips-cross
1983         container_cross_prefix=mips-linux-gnu-
1984         ;;
1985       nios2)
1986         container_image=debian-nios2-cross
1987         container_cross_prefix=nios2-linux-gnu-
1988         ;;
1989       ppc)
1990         container_image=debian-powerpc-test-cross
1991         container_cross_prefix=powerpc-linux-gnu-
1992         container_cross_cc=${container_cross_prefix}gcc-10
1993         ;;
1994       ppc64|ppc64le)
1995         container_image=debian-powerpc-test-cross
1996         container_cross_prefix=powerpc${1#ppc}-linux-gnu-
1997         container_cross_cc=${container_cross_prefix}gcc-10
1998         ;;
1999       riscv64)
2000         container_image=debian-riscv64-test-cross
2001         container_cross_prefix=riscv64-linux-gnu-
2002         ;;
2003       s390x)
2004         container_image=debian-s390x-cross
2005         container_cross_prefix=s390x-linux-gnu-
2006         ;;
2007       sh4)
2008         container_image=debian-sh4-cross
2009         container_cross_prefix=sh4-linux-gnu-
2010         ;;
2011       sparc64)
2012         container_image=debian-sparc64-cross
2013         container_cross_prefix=sparc64-linux-gnu-
2014         ;;
2015       tricore)
2016         container_image=debian-tricore-cross
2017         container_cross_prefix=tricore-
2018         container_cross_as=tricore-as
2019         container_cross_ld=tricore-ld
2020         break
2021         ;;
2022       x86_64)
2023         container_image=debian-amd64-cross
2024         container_cross_prefix=x86_64-linux-gnu-
2025         ;;
2026       xtensa*)
2027         container_hosts=x86_64
2028         container_image=debian-xtensa-cross
2029
2030         # default to the dc232b cpu
2031         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
2032         ;;
2033     esac
2034     : ${container_cross_cc:=${container_cross_prefix}gcc}
2035     : ${container_cross_ar:=${container_cross_prefix}ar}
2036     : ${container_cross_as:=${container_cross_prefix}as}
2037     : ${container_cross_ld:=${container_cross_prefix}ld}
2038     : ${container_cross_nm:=${container_cross_prefix}nm}
2039     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
2040     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
2041     : ${container_cross_strip:=${container_cross_prefix}strip}
2042   done
2043
2044   eval "target_cflags=\${cross_cc_cflags_$1}"
2045   if eval test -n "\"\${cross_cc_$1}\""; then
2046     if eval has "\"\${cross_cc_$1}\""; then
2047       eval "target_cc=\"\${cross_cc_$1}\""
2048     fi
2049   else
2050     compute_target_variable $1 target_cc gcc
2051   fi
2052   target_ccas=$target_cc
2053   compute_target_variable $1 target_ar ar
2054   compute_target_variable $1 target_as as
2055   compute_target_variable $1 target_ld ld
2056   compute_target_variable $1 target_nm nm
2057   compute_target_variable $1 target_objcopy objcopy
2058   compute_target_variable $1 target_ranlib ranlib
2059   compute_target_variable $1 target_strip strip
2060   if test "$1" = $cpu; then
2061     : ${target_cc:=$cc}
2062     : ${target_ccas:=$ccas}
2063     : ${target_as:=$as}
2064     : ${target_ld:=$ld}
2065     : ${target_ar:=$ar}
2066     : ${target_as:=$as}
2067     : ${target_ld:=$ld}
2068     : ${target_nm:=$nm}
2069     : ${target_objcopy:=$objcopy}
2070     : ${target_ranlib:=$ranlib}
2071     : ${target_strip:=$strip}
2072   fi
2073   if test -n "$target_cc"; then
2074     case $1 in
2075       i386|x86_64)
2076         if $target_cc --version | grep -qi "clang"; then
2077           unset target_cc
2078         fi
2079         ;;
2080     esac
2081   fi
2082 }
2083
2084 probe_target_compilers() {
2085   for i; do
2086     probe_target_compiler $i
2087     test -n "$target_cc" && return 0
2088   done
2089 }
2090
2091 write_target_makefile() {
2092   if test -n "$target_cc"; then
2093     echo "CC=$target_cc"
2094     echo "CCAS=$target_ccas"
2095   fi
2096   if test -n "$target_ar"; then
2097     echo "AR=$target_ar"
2098   fi
2099   if test -n "$target_as"; then
2100     echo "AS=$target_as"
2101   fi
2102   if test -n "$target_ld"; then
2103     echo "LD=$target_ld"
2104   fi
2105   if test -n "$target_nm"; then
2106     echo "NM=$target_nm"
2107   fi
2108   if test -n "$target_objcopy"; then
2109     echo "OBJCOPY=$target_objcopy"
2110   fi
2111   if test -n "$target_ranlib"; then
2112     echo "RANLIB=$target_ranlib"
2113   fi
2114   if test -n "$target_strip"; then
2115     echo "STRIP=$target_strip"
2116   fi
2117 }
2118
2119 write_container_target_makefile() {
2120   if test -n "$container_cross_cc"; then
2121     echo "CC=\$(DOCKER_SCRIPT) cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2122     echo "CCAS=\$(DOCKER_SCRIPT) cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2123   fi
2124   echo "AR=\$(DOCKER_SCRIPT) cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
2125   echo "AS=\$(DOCKER_SCRIPT) cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
2126   echo "LD=\$(DOCKER_SCRIPT) cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
2127   echo "NM=\$(DOCKER_SCRIPT) cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
2128   echo "OBJCOPY=\$(DOCKER_SCRIPT) cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
2129   echo "RANLIB=\$(DOCKER_SCRIPT) cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
2130   echo "STRIP=\$(DOCKER_SCRIPT) cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
2131 }
2132
2133
2134
2135 ##########################################
2136 # check for vfio_user_server
2137
2138 case "$vfio_user_server" in
2139   enabled )
2140     if test "$git_submodules_action" != "ignore"; then
2141       git_submodules="${git_submodules} subprojects/libvfio-user"
2142     fi
2143     ;;
2144 esac
2145
2146 ##########################################
2147 # End of CC checks
2148 # After here, no more $cc or $ld runs
2149
2150 write_c_skeleton
2151
2152 if test "$fortify_source" = "yes" ; then
2153   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2154 fi
2155
2156 case "$ARCH" in
2157 alpha)
2158   # Ensure there's only a single GP
2159   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
2160 ;;
2161 esac
2162
2163 if test "$have_asan" = "yes"; then
2164   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2165   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2166   if test "$have_asan_iface_h" = "no" ; then
2167       echo "ASAN build enabled, but ASAN header missing." \
2168            "Without code annotation, the report may be inferior."
2169   elif test "$have_asan_iface_fiber" = "no" ; then
2170       echo "ASAN build enabled, but ASAN header is too old." \
2171            "Without code annotation, the report may be inferior."
2172   fi
2173 fi
2174 if test "$have_tsan" = "yes" ; then
2175   if test "$have_tsan_iface_fiber" = "yes" ; then
2176     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2177     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2178   else
2179     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2180   fi
2181 elif test "$tsan" = "yes" ; then
2182   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2183 fi
2184 if test "$have_ubsan" = "yes"; then
2185   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2186   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2187 fi
2188
2189 ##########################################
2190
2191 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
2192 if test "$solaris" = "no" && test "$tsan" = "no"; then
2193     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
2194         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
2195     fi
2196 fi
2197
2198 # Guest agent Windows MSI package
2199
2200 if test "$QEMU_GA_MANUFACTURER" = ""; then
2201   QEMU_GA_MANUFACTURER=QEMU
2202 fi
2203 if test "$QEMU_GA_DISTRO" = ""; then
2204   QEMU_GA_DISTRO=Linux
2205 fi
2206 if test "$QEMU_GA_VERSION" = ""; then
2207     QEMU_GA_VERSION=$(cat $source_path/VERSION)
2208 fi
2209
2210
2211 #######################################
2212 # cross-compiled firmware targets
2213
2214 # Set up build tree symlinks that point back into the source tree
2215 # (these can be both files and directories).
2216 # Caution: avoid adding files or directories here using wildcards. This
2217 # will result in problems later if a new file matching the wildcard is
2218 # added to the source tree -- nothing will cause configure to be rerun
2219 # so the build tree will be missing the link back to the new file, and
2220 # tests might fail. Prefer to keep the relevant files in their own
2221 # directory and symlink the directory instead.
2222 LINKS="Makefile"
2223 LINKS="$LINKS tests/tcg/Makefile.target"
2224 LINKS="$LINKS pc-bios/optionrom/Makefile"
2225 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
2226 LINKS="$LINKS pc-bios/vof/Makefile"
2227 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
2228 LINKS="$LINKS tests/avocado tests/data"
2229 LINKS="$LINKS tests/qemu-iotests/check"
2230 LINKS="$LINKS python"
2231 LINKS="$LINKS contrib/plugins/Makefile "
2232 for f in $LINKS ; do
2233     if [ -e "$source_path/$f" ]; then
2234         mkdir -p `dirname ./$f`
2235         symlink "$source_path/$f" "$f"
2236     fi
2237 done
2238
2239 # Mac OS X ships with a broken assembler
2240 roms=
2241 probe_target_compilers i386 x86_64
2242 if test -n "$target_cc" &&
2243         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2244         test "$targetos" != "haiku" && test "$softmmu" = yes ; then
2245     # Different host OS linkers have different ideas about the name of the ELF
2246     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
2247     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
2248     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
2249         if "$target_ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
2250             ld_i386_emulation="$emu"
2251             break
2252         fi
2253     done
2254     if test -n "$ld_i386_emulation"; then
2255         roms="pc-bios/optionrom"
2256         config_mak=pc-bios/optionrom/config.mak
2257         echo "# Automatically generated by configure - do not modify" > $config_mak
2258         echo "TOPSRC_DIR=$source_path" >> $config_mak
2259         echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_mak
2260         write_target_makefile >> $config_mak
2261     fi
2262 fi
2263
2264 probe_target_compilers ppc ppc64
2265 if test -n "$target_cc" && test "$softmmu" = yes; then
2266     roms="$roms pc-bios/vof"
2267     config_mak=pc-bios/vof/config.mak
2268     echo "# Automatically generated by configure - do not modify" > $config_mak
2269     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
2270     write_target_makefile >> $config_mak
2271 fi
2272
2273 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
2274 # (which is the lowest architecture level that Clang supports)
2275 probe_target_compiler s390x
2276 if test -n "$target_cc" && test "$softmmu" = yes; then
2277   write_c_skeleton
2278   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
2279   has_z900=$?
2280   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
2281     if [ $has_z900 != 0 ]; then
2282       echo "WARNING: Your compiler does not support the z900!"
2283       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2284     fi
2285     roms="$roms pc-bios/s390-ccw"
2286     config_mak=pc-bios/s390-ccw/config-host.mak
2287     echo "# Automatically generated by configure - do not modify" > $config_mak
2288     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
2289     write_target_makefile >> $config_mak
2290     # SLOF is required for building the s390-ccw firmware on s390x,
2291     # since it is using the libnet code from SLOF for network booting.
2292     git_submodules="${git_submodules} roms/SLOF"
2293   fi
2294 fi
2295
2296 #######################################
2297 # generate config-host.mak
2298
2299 # Check that the C++ compiler exists and works with the C compiler.
2300 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
2301 if has $cxx; then
2302     cat > $TMPC <<EOF
2303 int c_function(void);
2304 int main(void) { return c_function(); }
2305 EOF
2306
2307     compile_object
2308
2309     cat > $TMPCXX <<EOF
2310 extern "C" {
2311    int c_function(void);
2312 }
2313 int c_function(void) { return 42; }
2314 EOF
2315
2316     update_cxxflags
2317
2318     if do_cxx $CXXFLAGS $EXTRA_CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
2319         # C++ compiler $cxx works ok with C compiler $cc
2320         :
2321     else
2322         echo "C++ compiler $cxx does not work with C compiler $cc"
2323         echo "Disabling C++ specific optional code"
2324         cxx=
2325     fi
2326 else
2327     echo "No C++ compiler available; disabling C++ specific optional code"
2328     cxx=
2329 fi
2330
2331 if !(GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2332     exit 1
2333 fi
2334
2335 config_host_mak="config-host.mak"
2336
2337 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2338 echo >> $config_host_mak
2339
2340 echo all: >> $config_host_mak
2341 echo "GIT=$git" >> $config_host_mak
2342 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2343 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2344
2345 if test "$debug_tcg" = "yes" ; then
2346   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2347 fi
2348 if test "$mingw32" = "yes" ; then
2349   echo "CONFIG_WIN32=y" >> $config_host_mak
2350   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
2351   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
2352   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
2353 else
2354   echo "CONFIG_POSIX=y" >> $config_host_mak
2355 fi
2356
2357 if test "$linux" = "yes" ; then
2358   echo "CONFIG_LINUX=y" >> $config_host_mak
2359 fi
2360
2361 if test "$darwin" = "yes" ; then
2362   echo "CONFIG_DARWIN=y" >> $config_host_mak
2363 fi
2364
2365 if test "$solaris" = "yes" ; then
2366   echo "CONFIG_SOLARIS=y" >> $config_host_mak
2367 fi
2368 if test "$static" = "yes" ; then
2369   echo "CONFIG_STATIC=y" >> $config_host_mak
2370 fi
2371 echo "SRC_PATH=$source_path" >> $config_host_mak
2372 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2373 if test "$modules" = "yes"; then
2374   echo "CONFIG_MODULES=y" >> $config_host_mak
2375 fi
2376
2377 # XXX: suppress that
2378 if [ "$bsd" = "yes" ] ; then
2379   echo "CONFIG_BSD=y" >> $config_host_mak
2380 fi
2381
2382 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2383
2384 if test "$have_asan_iface_fiber" = "yes" ; then
2385     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2386 fi
2387
2388 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2389     echo "CONFIG_TSAN=y" >> $config_host_mak
2390 fi
2391
2392 if test "$plugins" = "yes" ; then
2393     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2394 fi
2395
2396 if test -n "$gdb_bin"; then
2397     gdb_version=$($gdb_bin --version | head -n 1)
2398     if version_ge ${gdb_version##* } 9.1; then
2399         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2400     fi
2401 fi
2402
2403 echo "ROMS=$roms" >> $config_host_mak
2404 echo "MAKE=$make" >> $config_host_mak
2405 echo "PYTHON=$python" >> $config_host_mak
2406 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2407 echo "MESON=$meson" >> $config_host_mak
2408 echo "NINJA=$ninja" >> $config_host_mak
2409 echo "CC=$cc" >> $config_host_mak
2410 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2411 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
2412 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2413 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2414 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2415 echo "GLIB_BINDIR=$glib_bindir" >> $config_host_mak
2416 echo "GLIB_VERSION=$(pkg-config --modversion glib-2.0)" >> $config_host_mak
2417 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2418 echo "EXESUF=$EXESUF" >> $config_host_mak
2419
2420 # use included Linux headers
2421 if test "$linux" = "yes" ; then
2422   mkdir -p linux-headers
2423   case "$cpu" in
2424   i386|x86_64)
2425     linux_arch=x86
2426     ;;
2427   ppc|ppc64)
2428     linux_arch=powerpc
2429     ;;
2430   s390x)
2431     linux_arch=s390
2432     ;;
2433   aarch64)
2434     linux_arch=arm64
2435     ;;
2436   loongarch*)
2437     linux_arch=loongarch
2438     ;;
2439   mips64)
2440     linux_arch=mips
2441     ;;
2442   *)
2443     # For most CPUs the kernel architecture name and QEMU CPU name match.
2444     linux_arch="$cpu"
2445     ;;
2446   esac
2447     # For non-KVM architectures we will not have asm headers
2448     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2449       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2450     fi
2451 fi
2452
2453 for target in $target_list; do
2454     target_dir="$target"
2455     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2456     mkdir -p $target_dir
2457     case $target in
2458         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2459         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2460     esac
2461 done
2462
2463 if test "$default_targets" = "yes"; then
2464   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2465 fi
2466
2467 if test "$ccache_cpp2" = "yes"; then
2468   echo "export CCACHE_CPP2=y" >> $config_host_mak
2469 fi
2470
2471 if test "$safe_stack" = "yes"; then
2472   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
2473 fi
2474
2475 # tests/tcg configuration
2476 (makefile=tests/tcg/Makefile.prereqs
2477 echo "# Automatically generated by configure - do not modify" > $makefile
2478
2479 config_host_mak=tests/tcg/config-host.mak
2480 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2481 echo "SRC_PATH=$source_path" >> $config_host_mak
2482 echo "HOST_CC=$host_cc" >> $config_host_mak
2483
2484 tcg_tests_targets=
2485 for target in $target_list; do
2486   arch=${target%%-*}
2487
2488   probe_target_compiler ${arch}
2489   config_target_mak=tests/tcg/config-$target.mak
2490
2491   echo "# Automatically generated by configure - do not modify" > $config_target_mak
2492   echo "TARGET_NAME=$arch" >> $config_target_mak
2493   case $target in
2494     xtensa*-linux-user)
2495       # the toolchain is not complete with headers, only build softmmu tests
2496       continue
2497       ;;
2498     *-softmmu)
2499       test -f $source_path/tests/tcg/$arch/Makefile.softmmu-target || continue
2500       qemu="qemu-system-$arch"
2501       ;;
2502     *-linux-user|*-bsd-user)
2503       qemu="qemu-$arch"
2504       ;;
2505   esac
2506
2507   got_cross_cc=no
2508   unset build_static
2509
2510   if test -n "$target_cc"; then
2511       write_c_skeleton
2512       if ! do_compiler "$target_cc" $target_cflags \
2513            -o $TMPE $TMPC -static ; then
2514           # For host systems we might get away with building without -static
2515           if do_compiler "$target_cc" $target_cflags \
2516                          -o $TMPE $TMPC ; then
2517               got_cross_cc=yes
2518           fi
2519       else
2520           got_cross_cc=yes
2521           build_static=y
2522       fi
2523   elif test -n "$target_as" && test -n "$target_ld"; then
2524       # Special handling for assembler only tests
2525       case $target in
2526           tricore-softmmu) got_cross_cc=yes ;;
2527       esac
2528   fi
2529
2530   if test $got_cross_cc = yes; then
2531       # Test for compiler features for optional tests. We only do this
2532       # for cross compilers because ensuring the docker containers based
2533       # compilers is a requirememt for adding a new test that needs a
2534       # compiler feature.
2535
2536       echo "BUILD_STATIC=$build_static" >> $config_target_mak
2537       write_target_makefile >> $config_target_mak
2538       case $target in
2539           aarch64-*)
2540               if do_compiler "$target_cc" $target_cflags \
2541                              -march=armv8.1-a+sve -o $TMPE $TMPC; then
2542                   echo "CROSS_CC_HAS_SVE=y" >> $config_target_mak
2543               fi
2544               if do_compiler "$target_cc" $target_cflags \
2545                              -march=armv8.1-a+sve2 -o $TMPE $TMPC; then
2546                   echo "CROSS_CC_HAS_SVE2=y" >> $config_target_mak
2547               fi
2548               if do_compiler "$target_cc" $target_cflags \
2549                              -march=armv8.3-a -o $TMPE $TMPC; then
2550                   echo "CROSS_CC_HAS_ARMV8_3=y" >> $config_target_mak
2551               fi
2552               if do_compiler "$target_cc" $target_cflags \
2553                              -mbranch-protection=standard -o $TMPE $TMPC; then
2554                   echo "CROSS_CC_HAS_ARMV8_BTI=y" >> $config_target_mak
2555               fi
2556               if do_compiler "$target_cc" $target_cflags \
2557                              -march=armv8.5-a+memtag -o $TMPE $TMPC; then
2558                   echo "CROSS_CC_HAS_ARMV8_MTE=y" >> $config_target_mak
2559               fi
2560               ;;
2561           ppc*)
2562               if do_compiler "$target_cc" $target_cflags \
2563                              -mpower8-vector -o $TMPE $TMPC; then
2564                   echo "CROSS_CC_HAS_POWER8_VECTOR=y" >> $config_target_mak
2565               fi
2566               if do_compiler "$target_cc" $target_cflags \
2567                              -mpower10 -o $TMPE $TMPC; then
2568                   echo "CROSS_CC_HAS_POWER10=y" >> $config_target_mak
2569               fi
2570               ;;
2571           i386-linux-user)
2572               if do_compiler "$target_cc" $target_cflags \
2573                              -Werror -fno-pie -o $TMPE $TMPC; then
2574                   echo "CROSS_CC_HAS_I386_NOPIE=y" >> $config_target_mak
2575               fi
2576               ;;
2577       esac
2578   elif test -n "$container_image"; then
2579       echo "build-tcg-tests-$target: docker-image-$container_image" >> $makefile
2580       echo "BUILD_STATIC=y" >> $config_target_mak
2581       write_container_target_makefile >> $config_target_mak
2582       case $target in
2583           aarch64-*)
2584               echo "CROSS_CC_HAS_SVE=y" >> $config_target_mak
2585               echo "CROSS_CC_HAS_SVE2=y" >> $config_target_mak
2586               echo "CROSS_CC_HAS_ARMV8_3=y" >> $config_target_mak
2587               echo "CROSS_CC_HAS_ARMV8_BTI=y" >> $config_target_mak
2588               echo "CROSS_CC_HAS_ARMV8_MTE=y" >> $config_target_mak
2589               ;;
2590           ppc*)
2591               echo "CROSS_CC_HAS_POWER8_VECTOR=y" >> $config_target_mak
2592               echo "CROSS_CC_HAS_POWER10=y" >> $config_target_mak
2593               ;;
2594           i386-linux-user)
2595               echo "CROSS_CC_HAS_I386_NOPIE=y" >> $config_target_mak
2596               ;;
2597       esac
2598       got_cross_cc=yes
2599   fi
2600   if test $got_cross_cc = yes; then
2601       mkdir -p tests/tcg/$target
2602       echo "QEMU=$PWD/$qemu" >> $config_target_mak
2603       echo "EXTRA_CFLAGS=$target_cflags" >> $config_target_mak
2604       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> $makefile
2605       tcg_tests_targets="$tcg_tests_targets $target"
2606   fi
2607 done
2608 echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> $makefile)
2609
2610 if test "$skip_meson" = no; then
2611   cross="config-meson.cross.new"
2612   meson_quote() {
2613     test $# = 0 && return
2614     echo "'$(echo $* | sed "s/ /','/g")'"
2615   }
2616
2617   echo "# Automatically generated by configure - do not modify" > $cross
2618   echo "[properties]" >> $cross
2619
2620   # unroll any custom device configs
2621   for a in $device_archs; do
2622       eval "c=\$devices_${a}"
2623       echo "${a}-softmmu = '$c'" >> $cross
2624   done
2625
2626   test -z "$cxx" && echo "link_language = 'c'" >> $cross
2627   echo "[built-in options]" >> $cross
2628   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2629   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2630   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2631   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2632   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2633   echo "[binaries]" >> $cross
2634   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2635   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2636   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2637   echo "ar = [$(meson_quote $ar)]" >> $cross
2638   echo "nm = [$(meson_quote $nm)]" >> $cross
2639   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
2640   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2641   if has $sdl2_config; then
2642     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2643   fi
2644   echo "strip = [$(meson_quote $strip)]" >> $cross
2645   echo "widl = [$(meson_quote $widl)]" >> $cross
2646   echo "windres = [$(meson_quote $windres)]" >> $cross
2647   if test "$cross_compile" = "yes"; then
2648     cross_arg="--cross-file config-meson.cross"
2649     echo "[host_machine]" >> $cross
2650     echo "system = '$targetos'" >> $cross
2651     case "$cpu" in
2652         i386)
2653             echo "cpu_family = 'x86'" >> $cross
2654             ;;
2655         *)
2656             echo "cpu_family = '$cpu'" >> $cross
2657             ;;
2658     esac
2659     echo "cpu = '$cpu'" >> $cross
2660     if test "$bigendian" = "yes" ; then
2661         echo "endian = 'big'" >> $cross
2662     else
2663         echo "endian = 'little'" >> $cross
2664     fi
2665   else
2666     cross_arg="--native-file config-meson.cross"
2667   fi
2668   mv $cross config-meson.cross
2669
2670   rm -rf meson-private meson-info meson-logs
2671
2672   # Built-in options
2673   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2674   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2675   test "$pie" = no && meson_option_add -Db_pie=false
2676   test "$werror" = yes && meson_option_add -Dwerror=true
2677
2678   # QEMU options
2679   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2680   test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2681   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2682   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2683   test "$slirp" != auto && meson_option_add "-Dslirp=$slirp"
2684   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2685   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2686   test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server"
2687   run_meson() {
2688     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2689   }
2690   eval run_meson $meson_options
2691   if test "$?" -ne 0 ; then
2692       error_exit "meson setup failed"
2693   fi
2694 else
2695   if test -f meson-private/cmd_line.txt; then
2696     # Adjust old command line options whose type was changed
2697     # Avoids having to use "setup --wipe" when Meson is upgraded
2698     perl -i -ne '
2699       s/^gettext = true$/gettext = auto/;
2700       s/^gettext = false$/gettext = disabled/;
2701       /^b_staticpic/ && next;
2702       print;' meson-private/cmd_line.txt
2703   fi
2704 fi
2705
2706 # Save the configure command line for later reuse.
2707 cat <<EOD >config.status
2708 #!/bin/sh
2709 # Generated by configure.
2710 # Run this file to recreate the current configuration.
2711 # Compiler output produced by configure, useful for debugging
2712 # configure, is in config.log if it exists.
2713 EOD
2714
2715 preserve_env() {
2716     envname=$1
2717
2718     eval envval=\$$envname
2719
2720     if test -n "$envval"
2721     then
2722         echo "$envname='$envval'" >> config.status
2723         echo "export $envname" >> config.status
2724     else
2725         echo "unset $envname" >> config.status
2726     fi
2727 }
2728
2729 # Preserve various env variables that influence what
2730 # features/build target configure will detect
2731 preserve_env AR
2732 preserve_env AS
2733 preserve_env CC
2734 preserve_env CFLAGS
2735 preserve_env CXX
2736 preserve_env CXXFLAGS
2737 preserve_env LD
2738 preserve_env LDFLAGS
2739 preserve_env LD_LIBRARY_PATH
2740 preserve_env MAKE
2741 preserve_env NM
2742 preserve_env OBJCFLAGS
2743 preserve_env OBJCOPY
2744 preserve_env PATH
2745 preserve_env PKG_CONFIG
2746 preserve_env PKG_CONFIG_LIBDIR
2747 preserve_env PKG_CONFIG_PATH
2748 preserve_env PYTHON
2749 preserve_env SDL2_CONFIG
2750 preserve_env SMBD
2751 preserve_env STRIP
2752 preserve_env WIDL
2753 preserve_env WINDRES
2754
2755 printf "exec" >>config.status
2756 for i in "$0" "$@"; do
2757   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2758 done
2759 echo ' "$@"' >>config.status
2760 chmod +x config.status
2761
2762 rm -r "$TMPDIR1"