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 -mbig-endian"}
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   eval "$2="
1872   if eval test -n "\"\${cross_prefix_$1}\""; then
1873     if eval has "\"\${cross_prefix_$1}\$3\""; then
1874       eval "$2=\"\${cross_prefix_$1}\$3\""
1875     fi
1876   fi
1877 }
1878
1879 # probe_target_compiler TARGET
1880 #
1881 # Look for a compiler for the given target, either native or cross.
1882 # Set variables target_* if a compiler is found, and container_cross_*
1883 # if a Docker-based cross-compiler image is known for the target.
1884 # Set got_cross_cc to yes/no depending on whether a non-container-based
1885 # compiler was found.
1886 #
1887 # If TARGET is a user-mode emulation target, also set build_static to
1888 # "y" if static linking is possible.
1889 #
1890 probe_target_compiler() {
1891   # reset all output variables
1892   got_cross_cc=no
1893   container_image=
1894   container_hosts=
1895   container_cross_cc=
1896   container_cross_ar=
1897   container_cross_as=
1898   container_cross_ld=
1899   container_cross_nm=
1900   container_cross_objcopy=
1901   container_cross_ranlib=
1902   container_cross_strip=
1903
1904   target_arch=${1%%-*}
1905   case $target_arch in
1906     aarch64) container_hosts="x86_64 aarch64" ;;
1907     alpha) container_hosts=x86_64 ;;
1908     arm) container_hosts="x86_64 aarch64" ;;
1909     cris) container_hosts=x86_64 ;;
1910     hexagon) container_hosts=x86_64 ;;
1911     hppa) container_hosts=x86_64 ;;
1912     i386) container_hosts=x86_64 ;;
1913     m68k) container_hosts=x86_64 ;;
1914     microblaze) container_hosts=x86_64 ;;
1915     mips64el) container_hosts=x86_64 ;;
1916     mips64) container_hosts=x86_64 ;;
1917     mipsel) container_hosts=x86_64 ;;
1918     mips) container_hosts=x86_64 ;;
1919     nios2) container_hosts=x86_64 ;;
1920     ppc) container_hosts=x86_64 ;;
1921     ppc64|ppc64le) container_hosts=x86_64 ;;
1922     riscv64) container_hosts=x86_64 ;;
1923     s390x) container_hosts=x86_64 ;;
1924     sh4) container_hosts=x86_64 ;;
1925     sparc64) container_hosts=x86_64 ;;
1926     tricore) container_hosts=x86_64 ;;
1927     x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1928     xtensa*) container_hosts=x86_64 ;;
1929   esac
1930
1931   for host in $container_hosts; do
1932     test "$container" != no || continue
1933     test "$host" = "$cpu" || continue
1934     case $target_arch in
1935       aarch64)
1936         # We don't have any bigendian build tools so we only use this for AArch64
1937         container_image=debian-arm64-cross
1938         container_cross_prefix=aarch64-linux-gnu-
1939         container_cross_cc=${container_cross_prefix}gcc-10
1940         ;;
1941       alpha)
1942         container_image=debian-alpha-cross
1943         container_cross_prefix=alpha-linux-gnu-
1944         ;;
1945       arm)
1946         # We don't have any bigendian build tools so we only use this for ARM
1947         container_image=debian-armhf-cross
1948         container_cross_prefix=arm-linux-gnueabihf-
1949         ;;
1950       cris)
1951         container_image=fedora-cris-cross
1952         container_cross_prefix=cris-linux-gnu-
1953         ;;
1954       hexagon)
1955         container_image=debian-hexagon-cross
1956         container_cross_prefix=hexagon-unknown-linux-musl-
1957         container_cross_cc=${container_cross_prefix}clang
1958         ;;
1959       hppa)
1960         container_image=debian-hppa-cross
1961         container_cross_prefix=hppa-linux-gnu-
1962         ;;
1963       i386)
1964         container_image=fedora-i386-cross
1965         container_cross_prefix=
1966         ;;
1967       m68k)
1968         container_image=debian-m68k-cross
1969         container_cross_prefix=m68k-linux-gnu-
1970         ;;
1971       microblaze)
1972         container_image=debian-microblaze-cross
1973         container_cross_prefix=microblaze-linux-musl-
1974         ;;
1975       mips64el)
1976         container_image=debian-mips64el-cross
1977         container_cross_prefix=mips64el-linux-gnuabi64-
1978         ;;
1979       mips64)
1980         container_image=debian-mips64-cross
1981         container_cross_prefix=mips64-linux-gnuabi64-
1982         ;;
1983       mipsel)
1984         container_image=debian-mipsel-cross
1985         container_cross_prefix=mipsel-linux-gnu-
1986         ;;
1987       mips)
1988         container_image=debian-mips-cross
1989         container_cross_prefix=mips-linux-gnu-
1990         ;;
1991       nios2)
1992         container_image=debian-nios2-cross
1993         container_cross_prefix=nios2-linux-gnu-
1994         ;;
1995       ppc)
1996         container_image=debian-powerpc-test-cross
1997         container_cross_prefix=powerpc-linux-gnu-
1998         container_cross_cc=${container_cross_prefix}gcc-10
1999         ;;
2000       ppc64|ppc64le)
2001         container_image=debian-powerpc-test-cross
2002         container_cross_prefix=powerpc${1#ppc}-linux-gnu-
2003         container_cross_cc=${container_cross_prefix}gcc-10
2004         ;;
2005       riscv64)
2006         container_image=debian-riscv64-test-cross
2007         container_cross_prefix=riscv64-linux-gnu-
2008         ;;
2009       s390x)
2010         container_image=debian-s390x-cross
2011         container_cross_prefix=s390x-linux-gnu-
2012         ;;
2013       sh4)
2014         container_image=debian-sh4-cross
2015         container_cross_prefix=sh4-linux-gnu-
2016         ;;
2017       sparc64)
2018         container_image=debian-sparc64-cross
2019         container_cross_prefix=sparc64-linux-gnu-
2020         ;;
2021       tricore)
2022         container_image=debian-tricore-cross
2023         container_cross_prefix=tricore-
2024         container_cross_as=tricore-as
2025         container_cross_ld=tricore-ld
2026         break
2027         ;;
2028       x86_64)
2029         container_image=debian-amd64-cross
2030         container_cross_prefix=x86_64-linux-gnu-
2031         ;;
2032       xtensa*)
2033         container_hosts=x86_64
2034         container_image=debian-xtensa-cross
2035
2036         # default to the dc232b cpu
2037         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
2038         ;;
2039     esac
2040     : ${container_cross_cc:=${container_cross_prefix}gcc}
2041     : ${container_cross_ar:=${container_cross_prefix}ar}
2042     : ${container_cross_as:=${container_cross_prefix}as}
2043     : ${container_cross_ld:=${container_cross_prefix}ld}
2044     : ${container_cross_nm:=${container_cross_prefix}nm}
2045     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
2046     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
2047     : ${container_cross_strip:=${container_cross_prefix}strip}
2048   done
2049
2050   local t try
2051   try=cross
2052   case "$target_arch:$cpu" in
2053     aarch64_be:aarch64 | \
2054     armeb:arm | \
2055     i386:x86_64 | \
2056     mips*:mips64 | \
2057     ppc*:ppc64 | \
2058     sparc:sparc64 | \
2059     "$cpu:$cpu")
2060       try='native cross' ;;
2061   esac
2062   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
2063   for t in $try; do
2064     case $t in
2065     native)
2066       target_cc=$cc
2067       target_ccas=$ccas
2068       target_ar=$ar
2069       target_as=$as
2070       target_ld=$ld
2071       target_nm=$nm
2072       target_objcopy=$objcopy
2073       target_ranlib=$ranlib
2074       target_strip=$strip
2075       ;;
2076     cross)
2077       target_cc=
2078       if eval test -n "\"\${cross_cc_$target_arch}\""; then
2079         if eval has "\"\${cross_cc_$target_arch}\""; then
2080           eval "target_cc=\"\${cross_cc_$target_arch}\""
2081         fi
2082       else
2083         compute_target_variable $target_arch target_cc gcc
2084       fi
2085       target_ccas=$target_cc
2086       compute_target_variable $target_arch target_ar ar
2087       compute_target_variable $target_arch target_as as
2088       compute_target_variable $target_arch target_ld ld
2089       compute_target_variable $target_arch target_nm nm
2090       compute_target_variable $target_arch target_objcopy objcopy
2091       compute_target_variable $target_arch target_ranlib ranlib
2092       compute_target_variable $target_arch target_strip strip
2093       ;;
2094     esac
2095
2096     if test -n "$target_cc"; then
2097       case $target_arch in
2098         i386|x86_64)
2099           if $target_cc --version | grep -qi "clang"; then
2100             continue
2101           fi
2102           ;;
2103       esac
2104     elif test -n "$target_as" && test -n "$target_ld"; then
2105       # Special handling for assembler only targets
2106       case $target in
2107         tricore-softmmu)
2108           build_static=
2109           got_cross_cc=yes
2110           break
2111           ;;
2112         *)
2113           continue
2114           ;;
2115       esac
2116     else
2117       continue
2118     fi
2119
2120     write_c_skeleton
2121     case $1 in
2122       *-softmmu)
2123         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
2124           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
2125           got_cross_cc=yes
2126           break
2127         fi
2128         ;;
2129       *)
2130         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
2131           build_static=y
2132           got_cross_cc=yes
2133           break
2134         fi
2135         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
2136           build_static=
2137           got_cross_cc=yes
2138           break
2139         fi
2140         ;;
2141     esac
2142   done
2143   if test $got_cross_cc != yes; then
2144     build_static=
2145     target_cc=
2146     target_ccas=
2147     target_cflags=
2148     target_ar=
2149     target_as=
2150     target_ld=
2151     target_nm=
2152     target_objcopy=
2153     target_ranlib=
2154     target_strip=
2155   fi
2156 }
2157
2158 write_target_makefile() {
2159   echo "EXTRA_CFLAGS=$target_cflags"
2160   if test -n "$target_cc"; then
2161     echo "CC=$target_cc"
2162     echo "CCAS=$target_ccas"
2163   fi
2164   if test -n "$target_ar"; then
2165     echo "AR=$target_ar"
2166   fi
2167   if test -n "$target_as"; then
2168     echo "AS=$target_as"
2169   fi
2170   if test -n "$target_ld"; then
2171     echo "LD=$target_ld"
2172   fi
2173   if test -n "$target_nm"; then
2174     echo "NM=$target_nm"
2175   fi
2176   if test -n "$target_objcopy"; then
2177     echo "OBJCOPY=$target_objcopy"
2178   fi
2179   if test -n "$target_ranlib"; then
2180     echo "RANLIB=$target_ranlib"
2181   fi
2182   if test -n "$target_strip"; then
2183     echo "STRIP=$target_strip"
2184   fi
2185 }
2186
2187 write_container_target_makefile() {
2188   echo "EXTRA_CFLAGS=$target_cflags"
2189   if test -n "$container_cross_cc"; then
2190     echo "CC=\$(DOCKER_SCRIPT) cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2191     echo "CCAS=\$(DOCKER_SCRIPT) cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2192   fi
2193   echo "AR=\$(DOCKER_SCRIPT) cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
2194   echo "AS=\$(DOCKER_SCRIPT) cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
2195   echo "LD=\$(DOCKER_SCRIPT) cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
2196   echo "NM=\$(DOCKER_SCRIPT) cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
2197   echo "OBJCOPY=\$(DOCKER_SCRIPT) cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
2198   echo "RANLIB=\$(DOCKER_SCRIPT) cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
2199   echo "STRIP=\$(DOCKER_SCRIPT) cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
2200 }
2201
2202
2203
2204 ##########################################
2205 # check for vfio_user_server
2206
2207 case "$vfio_user_server" in
2208   enabled )
2209     if test "$git_submodules_action" != "ignore"; then
2210       git_submodules="${git_submodules} subprojects/libvfio-user"
2211     fi
2212     ;;
2213 esac
2214
2215 ##########################################
2216 # End of CC checks
2217 # After here, no more $cc or $ld runs
2218
2219 write_c_skeleton
2220
2221 if test "$fortify_source" = "yes" ; then
2222   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2223 fi
2224
2225 case "$ARCH" in
2226 alpha)
2227   # Ensure there's only a single GP
2228   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
2229 ;;
2230 esac
2231
2232 if test "$have_asan" = "yes"; then
2233   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2234   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2235   if test "$have_asan_iface_h" = "no" ; then
2236       echo "ASAN build enabled, but ASAN header missing." \
2237            "Without code annotation, the report may be inferior."
2238   elif test "$have_asan_iface_fiber" = "no" ; then
2239       echo "ASAN build enabled, but ASAN header is too old." \
2240            "Without code annotation, the report may be inferior."
2241   fi
2242 fi
2243 if test "$have_tsan" = "yes" ; then
2244   if test "$have_tsan_iface_fiber" = "yes" ; then
2245     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2246     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2247   else
2248     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2249   fi
2250 elif test "$tsan" = "yes" ; then
2251   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2252 fi
2253 if test "$have_ubsan" = "yes"; then
2254   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2255   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2256 fi
2257
2258 ##########################################
2259
2260 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
2261 if test "$solaris" = "no" && test "$tsan" = "no"; then
2262     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
2263         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
2264     fi
2265 fi
2266
2267 # Guest agent Windows MSI package
2268
2269 if test "$QEMU_GA_MANUFACTURER" = ""; then
2270   QEMU_GA_MANUFACTURER=QEMU
2271 fi
2272 if test "$QEMU_GA_DISTRO" = ""; then
2273   QEMU_GA_DISTRO=Linux
2274 fi
2275 if test "$QEMU_GA_VERSION" = ""; then
2276     QEMU_GA_VERSION=$(cat $source_path/VERSION)
2277 fi
2278
2279
2280 #######################################
2281 # cross-compiled firmware targets
2282
2283 # Set up build tree symlinks that point back into the source tree
2284 # (these can be both files and directories).
2285 # Caution: avoid adding files or directories here using wildcards. This
2286 # will result in problems later if a new file matching the wildcard is
2287 # added to the source tree -- nothing will cause configure to be rerun
2288 # so the build tree will be missing the link back to the new file, and
2289 # tests might fail. Prefer to keep the relevant files in their own
2290 # directory and symlink the directory instead.
2291 LINKS="Makefile"
2292 LINKS="$LINKS tests/tcg/Makefile.target"
2293 LINKS="$LINKS pc-bios/optionrom/Makefile"
2294 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
2295 LINKS="$LINKS pc-bios/vof/Makefile"
2296 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
2297 LINKS="$LINKS tests/avocado tests/data"
2298 LINKS="$LINKS tests/qemu-iotests/check"
2299 LINKS="$LINKS python"
2300 LINKS="$LINKS contrib/plugins/Makefile "
2301 for f in $LINKS ; do
2302     if [ -e "$source_path/$f" ]; then
2303         mkdir -p `dirname ./$f`
2304         symlink "$source_path/$f" "$f"
2305     fi
2306 done
2307
2308 # Mac OS X ships with a broken assembler
2309 roms=
2310 probe_target_compiler i386-softmmu
2311 if test -n "$target_cc" &&
2312         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2313         test "$targetos" != "haiku" && test "$softmmu" = yes ; then
2314     # Different host OS linkers have different ideas about the name of the ELF
2315     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
2316     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
2317     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
2318         if "$target_ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
2319             ld_i386_emulation="$emu"
2320             break
2321         fi
2322     done
2323     if test -n "$ld_i386_emulation"; then
2324         roms="pc-bios/optionrom"
2325         config_mak=pc-bios/optionrom/config.mak
2326         echo "# Automatically generated by configure - do not modify" > $config_mak
2327         echo "TOPSRC_DIR=$source_path" >> $config_mak
2328         echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_mak
2329         write_target_makefile >> $config_mak
2330     fi
2331 fi
2332
2333 probe_target_compiler ppc-softmmu
2334 if test -n "$target_cc" && test "$softmmu" = yes; then
2335     roms="$roms pc-bios/vof"
2336     config_mak=pc-bios/vof/config.mak
2337     echo "# Automatically generated by configure - do not modify" > $config_mak
2338     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
2339     write_target_makefile >> $config_mak
2340 fi
2341
2342 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
2343 # (which is the lowest architecture level that Clang supports)
2344 probe_target_compiler s390x-softmmu
2345 if test -n "$target_cc" && test "$softmmu" = yes; then
2346   write_c_skeleton
2347   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
2348   has_z900=$?
2349   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
2350     if [ $has_z900 != 0 ]; then
2351       echo "WARNING: Your compiler does not support the z900!"
2352       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2353     fi
2354     roms="$roms pc-bios/s390-ccw"
2355     config_mak=pc-bios/s390-ccw/config-host.mak
2356     echo "# Automatically generated by configure - do not modify" > $config_mak
2357     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
2358     write_target_makefile >> $config_mak
2359     # SLOF is required for building the s390-ccw firmware on s390x,
2360     # since it is using the libnet code from SLOF for network booting.
2361     git_submodules="${git_submodules} roms/SLOF"
2362   fi
2363 fi
2364
2365 #######################################
2366 # generate config-host.mak
2367
2368 # Check that the C++ compiler exists and works with the C compiler.
2369 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
2370 if has $cxx; then
2371     cat > $TMPC <<EOF
2372 int c_function(void);
2373 int main(void) { return c_function(); }
2374 EOF
2375
2376     compile_object
2377
2378     cat > $TMPCXX <<EOF
2379 extern "C" {
2380    int c_function(void);
2381 }
2382 int c_function(void) { return 42; }
2383 EOF
2384
2385     update_cxxflags
2386
2387     if do_cxx $CXXFLAGS $EXTRA_CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
2388         # C++ compiler $cxx works ok with C compiler $cc
2389         :
2390     else
2391         echo "C++ compiler $cxx does not work with C compiler $cc"
2392         echo "Disabling C++ specific optional code"
2393         cxx=
2394     fi
2395 else
2396     echo "No C++ compiler available; disabling C++ specific optional code"
2397     cxx=
2398 fi
2399
2400 if !(GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2401     exit 1
2402 fi
2403
2404 config_host_mak="config-host.mak"
2405
2406 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2407 echo >> $config_host_mak
2408
2409 echo all: >> $config_host_mak
2410 echo "GIT=$git" >> $config_host_mak
2411 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2412 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2413
2414 if test "$debug_tcg" = "yes" ; then
2415   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2416 fi
2417 if test "$mingw32" = "yes" ; then
2418   echo "CONFIG_WIN32=y" >> $config_host_mak
2419   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
2420   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
2421   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
2422 else
2423   echo "CONFIG_POSIX=y" >> $config_host_mak
2424 fi
2425
2426 if test "$linux" = "yes" ; then
2427   echo "CONFIG_LINUX=y" >> $config_host_mak
2428 fi
2429
2430 if test "$darwin" = "yes" ; then
2431   echo "CONFIG_DARWIN=y" >> $config_host_mak
2432 fi
2433
2434 if test "$solaris" = "yes" ; then
2435   echo "CONFIG_SOLARIS=y" >> $config_host_mak
2436 fi
2437 if test "$static" = "yes" ; then
2438   echo "CONFIG_STATIC=y" >> $config_host_mak
2439 fi
2440 echo "SRC_PATH=$source_path" >> $config_host_mak
2441 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2442 if test "$modules" = "yes"; then
2443   echo "CONFIG_MODULES=y" >> $config_host_mak
2444 fi
2445
2446 # XXX: suppress that
2447 if [ "$bsd" = "yes" ] ; then
2448   echo "CONFIG_BSD=y" >> $config_host_mak
2449 fi
2450
2451 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2452
2453 if test "$have_asan_iface_fiber" = "yes" ; then
2454     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2455 fi
2456
2457 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2458     echo "CONFIG_TSAN=y" >> $config_host_mak
2459 fi
2460
2461 if test "$plugins" = "yes" ; then
2462     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2463 fi
2464
2465 if test -n "$gdb_bin"; then
2466     gdb_version=$($gdb_bin --version | head -n 1)
2467     if version_ge ${gdb_version##* } 9.1; then
2468         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2469     fi
2470 fi
2471
2472 echo "ROMS=$roms" >> $config_host_mak
2473 echo "MAKE=$make" >> $config_host_mak
2474 echo "PYTHON=$python" >> $config_host_mak
2475 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2476 echo "MESON=$meson" >> $config_host_mak
2477 echo "NINJA=$ninja" >> $config_host_mak
2478 echo "CC=$cc" >> $config_host_mak
2479 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2480 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
2481 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2482 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2483 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2484 echo "GLIB_BINDIR=$glib_bindir" >> $config_host_mak
2485 echo "GLIB_VERSION=$(pkg-config --modversion glib-2.0)" >> $config_host_mak
2486 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2487 echo "EXESUF=$EXESUF" >> $config_host_mak
2488
2489 # use included Linux headers
2490 if test "$linux" = "yes" ; then
2491   mkdir -p linux-headers
2492   case "$cpu" in
2493   i386|x86_64)
2494     linux_arch=x86
2495     ;;
2496   ppc|ppc64)
2497     linux_arch=powerpc
2498     ;;
2499   s390x)
2500     linux_arch=s390
2501     ;;
2502   aarch64)
2503     linux_arch=arm64
2504     ;;
2505   loongarch*)
2506     linux_arch=loongarch
2507     ;;
2508   mips64)
2509     linux_arch=mips
2510     ;;
2511   *)
2512     # For most CPUs the kernel architecture name and QEMU CPU name match.
2513     linux_arch="$cpu"
2514     ;;
2515   esac
2516     # For non-KVM architectures we will not have asm headers
2517     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2518       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2519     fi
2520 fi
2521
2522 for target in $target_list; do
2523     target_dir="$target"
2524     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2525     mkdir -p $target_dir
2526     case $target in
2527         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2528         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2529     esac
2530 done
2531
2532 if test "$default_targets" = "yes"; then
2533   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2534 fi
2535
2536 if test "$ccache_cpp2" = "yes"; then
2537   echo "export CCACHE_CPP2=y" >> $config_host_mak
2538 fi
2539
2540 if test "$safe_stack" = "yes"; then
2541   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
2542 fi
2543
2544 # tests/tcg configuration
2545 (makefile=tests/tcg/Makefile.prereqs
2546 echo "# Automatically generated by configure - do not modify" > $makefile
2547
2548 config_host_mak=tests/tcg/config-host.mak
2549 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2550 echo "SRC_PATH=$source_path" >> $config_host_mak
2551 echo "HOST_CC=$host_cc" >> $config_host_mak
2552
2553 tcg_tests_targets=
2554 for target in $target_list; do
2555   arch=${target%%-*}
2556
2557   config_target_mak=tests/tcg/config-$target.mak
2558
2559   echo "# Automatically generated by configure - do not modify" > $config_target_mak
2560   echo "TARGET_NAME=$arch" >> $config_target_mak
2561   case $target in
2562     xtensa*-linux-user)
2563       # the toolchain is not complete with headers, only build softmmu tests
2564       continue
2565       ;;
2566     *-softmmu)
2567       test -f $source_path/tests/tcg/$arch/Makefile.softmmu-target || continue
2568       qemu="qemu-system-$arch"
2569       ;;
2570     *-linux-user|*-bsd-user)
2571       qemu="qemu-$arch"
2572       ;;
2573   esac
2574
2575   probe_target_compiler $target
2576   if test $got_cross_cc = yes; then
2577       # Test for compiler features for optional tests. We only do this
2578       # for cross compilers because ensuring the docker containers based
2579       # compilers is a requirememt for adding a new test that needs a
2580       # compiler feature.
2581
2582       echo "BUILD_STATIC=$build_static" >> $config_target_mak
2583       write_target_makefile >> $config_target_mak
2584       case $target in
2585           aarch64-*)
2586               if do_compiler "$target_cc" $target_cflags \
2587                              -march=armv8.1-a+sve -o $TMPE $TMPC; then
2588                   echo "CROSS_CC_HAS_SVE=y" >> $config_target_mak
2589               fi
2590               if do_compiler "$target_cc" $target_cflags \
2591                              -march=armv8.1-a+sve2 -o $TMPE $TMPC; then
2592                   echo "CROSS_CC_HAS_SVE2=y" >> $config_target_mak
2593               fi
2594               if do_compiler "$target_cc" $target_cflags \
2595                              -march=armv8.3-a -o $TMPE $TMPC; then
2596                   echo "CROSS_CC_HAS_ARMV8_3=y" >> $config_target_mak
2597               fi
2598               if do_compiler "$target_cc" $target_cflags \
2599                              -mbranch-protection=standard -o $TMPE $TMPC; then
2600                   echo "CROSS_CC_HAS_ARMV8_BTI=y" >> $config_target_mak
2601               fi
2602               if do_compiler "$target_cc" $target_cflags \
2603                              -march=armv8.5-a+memtag -o $TMPE $TMPC; then
2604                   echo "CROSS_CC_HAS_ARMV8_MTE=y" >> $config_target_mak
2605               fi
2606               ;;
2607           ppc*)
2608               if do_compiler "$target_cc" $target_cflags \
2609                              -mpower8-vector -o $TMPE $TMPC; then
2610                   echo "CROSS_CC_HAS_POWER8_VECTOR=y" >> $config_target_mak
2611               fi
2612               if do_compiler "$target_cc" $target_cflags \
2613                              -mpower10 -o $TMPE $TMPC; then
2614                   echo "CROSS_CC_HAS_POWER10=y" >> $config_target_mak
2615               fi
2616               ;;
2617           i386-linux-user)
2618               if do_compiler "$target_cc" $target_cflags \
2619                              -Werror -fno-pie -o $TMPE $TMPC; then
2620                   echo "CROSS_CC_HAS_I386_NOPIE=y" >> $config_target_mak
2621               fi
2622               ;;
2623       esac
2624   elif test -n "$container_image"; then
2625       echo "build-tcg-tests-$target: docker-image-$container_image" >> $makefile
2626       echo "BUILD_STATIC=y" >> $config_target_mak
2627       write_container_target_makefile >> $config_target_mak
2628       case $target in
2629           aarch64-*)
2630               echo "CROSS_CC_HAS_SVE=y" >> $config_target_mak
2631               echo "CROSS_CC_HAS_SVE2=y" >> $config_target_mak
2632               echo "CROSS_CC_HAS_ARMV8_3=y" >> $config_target_mak
2633               echo "CROSS_CC_HAS_ARMV8_BTI=y" >> $config_target_mak
2634               echo "CROSS_CC_HAS_ARMV8_MTE=y" >> $config_target_mak
2635               ;;
2636           ppc*)
2637               echo "CROSS_CC_HAS_POWER8_VECTOR=y" >> $config_target_mak
2638               echo "CROSS_CC_HAS_POWER10=y" >> $config_target_mak
2639               ;;
2640           i386-linux-user)
2641               echo "CROSS_CC_HAS_I386_NOPIE=y" >> $config_target_mak
2642               ;;
2643       esac
2644       got_cross_cc=yes
2645   fi
2646   if test $got_cross_cc = yes; then
2647       mkdir -p tests/tcg/$target
2648       echo "QEMU=$PWD/$qemu" >> $config_target_mak
2649       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> $makefile
2650       tcg_tests_targets="$tcg_tests_targets $target"
2651   fi
2652 done
2653 echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> $makefile)
2654
2655 if test "$skip_meson" = no; then
2656   cross="config-meson.cross.new"
2657   meson_quote() {
2658     test $# = 0 && return
2659     echo "'$(echo $* | sed "s/ /','/g")'"
2660   }
2661
2662   echo "# Automatically generated by configure - do not modify" > $cross
2663   echo "[properties]" >> $cross
2664
2665   # unroll any custom device configs
2666   for a in $device_archs; do
2667       eval "c=\$devices_${a}"
2668       echo "${a}-softmmu = '$c'" >> $cross
2669   done
2670
2671   test -z "$cxx" && echo "link_language = 'c'" >> $cross
2672   echo "[built-in options]" >> $cross
2673   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2674   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2675   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2676   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2677   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2678   echo "[binaries]" >> $cross
2679   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2680   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2681   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2682   echo "ar = [$(meson_quote $ar)]" >> $cross
2683   echo "nm = [$(meson_quote $nm)]" >> $cross
2684   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
2685   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2686   if has $sdl2_config; then
2687     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2688   fi
2689   echo "strip = [$(meson_quote $strip)]" >> $cross
2690   echo "widl = [$(meson_quote $widl)]" >> $cross
2691   echo "windres = [$(meson_quote $windres)]" >> $cross
2692   if test "$cross_compile" = "yes"; then
2693     cross_arg="--cross-file config-meson.cross"
2694     echo "[host_machine]" >> $cross
2695     echo "system = '$targetos'" >> $cross
2696     case "$cpu" in
2697         i386)
2698             echo "cpu_family = 'x86'" >> $cross
2699             ;;
2700         *)
2701             echo "cpu_family = '$cpu'" >> $cross
2702             ;;
2703     esac
2704     echo "cpu = '$cpu'" >> $cross
2705     if test "$bigendian" = "yes" ; then
2706         echo "endian = 'big'" >> $cross
2707     else
2708         echo "endian = 'little'" >> $cross
2709     fi
2710   else
2711     cross_arg="--native-file config-meson.cross"
2712   fi
2713   mv $cross config-meson.cross
2714
2715   rm -rf meson-private meson-info meson-logs
2716
2717   # Built-in options
2718   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2719   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2720   test "$pie" = no && meson_option_add -Db_pie=false
2721   test "$werror" = yes && meson_option_add -Dwerror=true
2722
2723   # QEMU options
2724   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2725   test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2726   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2727   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2728   test "$slirp" != auto && meson_option_add "-Dslirp=$slirp"
2729   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2730   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2731   test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server"
2732   run_meson() {
2733     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2734   }
2735   eval run_meson $meson_options
2736   if test "$?" -ne 0 ; then
2737       error_exit "meson setup failed"
2738   fi
2739 else
2740   if test -f meson-private/cmd_line.txt; then
2741     # Adjust old command line options whose type was changed
2742     # Avoids having to use "setup --wipe" when Meson is upgraded
2743     perl -i -ne '
2744       s/^gettext = true$/gettext = auto/;
2745       s/^gettext = false$/gettext = disabled/;
2746       /^b_staticpic/ && next;
2747       print;' meson-private/cmd_line.txt
2748   fi
2749 fi
2750
2751 # Save the configure command line for later reuse.
2752 cat <<EOD >config.status
2753 #!/bin/sh
2754 # Generated by configure.
2755 # Run this file to recreate the current configuration.
2756 # Compiler output produced by configure, useful for debugging
2757 # configure, is in config.log if it exists.
2758 EOD
2759
2760 preserve_env() {
2761     envname=$1
2762
2763     eval envval=\$$envname
2764
2765     if test -n "$envval"
2766     then
2767         echo "$envname='$envval'" >> config.status
2768         echo "export $envname" >> config.status
2769     else
2770         echo "unset $envname" >> config.status
2771     fi
2772 }
2773
2774 # Preserve various env variables that influence what
2775 # features/build target configure will detect
2776 preserve_env AR
2777 preserve_env AS
2778 preserve_env CC
2779 preserve_env CFLAGS
2780 preserve_env CXX
2781 preserve_env CXXFLAGS
2782 preserve_env LD
2783 preserve_env LDFLAGS
2784 preserve_env LD_LIBRARY_PATH
2785 preserve_env MAKE
2786 preserve_env NM
2787 preserve_env OBJCFLAGS
2788 preserve_env OBJCOPY
2789 preserve_env PATH
2790 preserve_env PKG_CONFIG
2791 preserve_env PKG_CONFIG_LIBDIR
2792 preserve_env PKG_CONFIG_PATH
2793 preserve_env PYTHON
2794 preserve_env SDL2_CONFIG
2795 preserve_env SMBD
2796 preserve_env STRIP
2797 preserve_env WIDL
2798 preserve_env WINDRES
2799
2800 printf "exec" >>config.status
2801 for i in "$0" "$@"; do
2802   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2803 done
2804 echo ' "$@"' >>config.status
2805 chmod +x config.status
2806
2807 rm -r "$TMPDIR1"