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 "${TMPDIR1}"
  70 if ! mkdir -p "${TMPDIR1}"; then
  71     echo "ERROR: failed to create temporary directory"
  72     exit 1
  73 fi
  74
  75 TMPB="qemu-conf"
  76 TMPC="${TMPDIR1}/${TMPB}.c"
  77 TMPO="${TMPDIR1}/${TMPB}.o"
  78 TMPCXX="${TMPDIR1}/${TMPB}.cxx"
  79 TMPM="${TMPDIR1}/${TMPB}.m"
  80 TMPE="${TMPDIR1}/${TMPB}.exe"
  81
  82 rm -f config.log
  83
  84 # Print a helpful header at the top of config.log
  85 echo "# QEMU configure log $(date)" >> config.log
  86 printf "# Configured with:" >> config.log
  87 printf " '%s'" "$0" "$@" >> config.log
  88 echo >> config.log
  89 echo "#" >> config.log
  90
  91 quote_sh() {
  92     printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
  93 }
  94
  95 print_error() {
  96     (echo
  97     echo "ERROR: $1"
  98     while test -n "$2"; do
  99         echo "       $2"
 100         shift
 101     done
 102     echo) >&2
 103 }
 104
 105 error_exit() {
 106     print_error "$@"
 107     exit 1
 108 }
 109
 110 do_compiler() {
 111   # Run the compiler, capturing its output to the log. First argument
 112   # is compiler binary to execute.
 113   compiler="$1"
 114   shift
 115   if test -n "$BASH_VERSION"; then eval '
 116       echo >>config.log "
 117 funcs: ${FUNCNAME[*]}
 118 lines: ${BASH_LINENO[*]}"
 119   '; fi
 120   echo $compiler "$@" >> config.log
 121   $compiler "$@" >> config.log 2>&1 || return $?
 122 }
 123
 124 do_compiler_werror() {
 125     # Run the compiler, capturing its output to the log. First argument
 126     # is compiler binary to execute.
 127     compiler="$1"
 128     shift
 129     if test -n "$BASH_VERSION"; then eval '
 130         echo >>config.log "
 131 funcs: ${FUNCNAME[*]}
 132 lines: ${BASH_LINENO[*]}"
 133     '; fi
 134     echo $compiler "$@" >> config.log
 135     $compiler "$@" >> config.log 2>&1 || return $?
 136     # Test passed. If this is an --enable-werror build, rerun
 137     # the test with -Werror and bail out if it fails. This
 138     # makes warning-generating-errors in configure test code
 139     # obvious to developers.
 140     if test "$werror" != "yes"; then
 141         return 0
 142     fi
 143     # Don't bother rerunning the compile if we were already using -Werror
 144     case "$*" in
 145         *-Werror*)
 146            return 0
 147         ;;
 148     esac
 149     echo $compiler -Werror "$@" >> config.log
 150     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 151     error_exit "configure test passed without -Werror but failed with -Werror." \
 152         "This is probably a bug in the configure script. The failing command" \
 153         "will be at the bottom of config.log." \
 154         "You can run configure with --disable-werror to bypass this check."
 155 }
 156
 157 do_cc() {
 158     do_compiler_werror "$cc" $CPU_CFLAGS "$@"
 159 }
 160
 161 do_cxx() {
 162     do_compiler_werror "$cxx" $CPU_CFLAGS "$@"
 163 }
 164
 165 do_objc() {
 166     do_compiler_werror "$objcc" $CPU_CFLAGS "$@"
 167 }
 168
 169 # Append $2 to the variable named $1, with space separation
 170 add_to() {
 171     eval $1=\${$1:+\"\$$1 \"}\$2
 172 }
 173
 174 update_cxxflags() {
 175     # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
 176     # options which some versions of GCC's C++ compiler complain about
 177     # because they only make sense for C programs.
 178     QEMU_CXXFLAGS="-D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
 179     CONFIGURE_CXXFLAGS=$(echo "$CONFIGURE_CFLAGS" | sed s/-std=gnu11/-std=gnu++11/)
 180     for arg in $QEMU_CFLAGS; do
 181         case $arg in
 182             -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
 183             -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
 184                 ;;
 185             *)
 186                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
 187                 ;;
 188         esac
 189     done
 190 }
 191
 192 compile_object() {
 193   local_cflags="$1"
 194   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 195 }
 196
 197 compile_prog() {
 198   local_cflags="$1"
 199   local_ldflags="$2"
 200   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 201       $LDFLAGS $EXTRA_LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 202 }
 203
 204 # symbolically link $1 to $2.  Portable version of "ln -sf".
 205 symlink() {
 206   rm -rf "$2"
 207   mkdir -p "$(dirname "$2")"
 208   ln -s "$1" "$2"
 209 }
 210
 211 # check whether a command is available to this shell (may be either an
 212 # executable or a builtin)
 213 has() {
 214     type "$1" >/dev/null 2>&1
 215 }
 216
 217 version_ge () {
 218     local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
 219     local_ver2=$(echo "$2" | tr . ' ')
 220     while true; do
 221         set x $local_ver1
 222         local_first=${2-0}
 223         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 224         shift ${2:+2}
 225         local_ver1=$*
 226         set x $local_ver2
 227         # the second argument finished, the first must be greater or equal
 228         test $# = 1 && return 0
 229         test $local_first -lt $2 && return 1
 230         test $local_first -gt $2 && return 0
 231         shift ${2:+2}
 232         local_ver2=$*
 233     done
 234 }
 235
 236 glob() {
 237     eval test -z '"${1#'"$2"'}"'
 238 }
 239
 240 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 241 then
 242   error_exit "main directory cannot contain spaces nor colons"
 243 fi
 244
 245 # default parameters
 246 cpu=""
 247 static="no"
 248 cross_compile="no"
 249 cross_prefix=""
 250 host_cc="cc"
 251 stack_protector=""
 252 safe_stack=""
 253 use_containers="yes"
 254 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 255
 256 if test -e "$source_path/.git"
 257 then
 258     git_submodules_action="update"
 259 else
 260     git_submodules_action="ignore"
 261 fi
 262
 263 git_submodules="ui/keycodemapdb"
 264 git="git"
 265
 266 # Don't accept a target_list environment variable.
 267 unset target_list
 268 unset target_list_exclude
 269
 270 # Default value for a variable defining feature "foo".
 271 #  * foo="no"  feature will only be used if --enable-foo arg is given
 272 #  * foo=""    feature will be searched for, and if found, will be used
 273 #              unless --disable-foo is given
 274 #  * foo="yes" this value will only be set by --enable-foo flag.
 275 #              feature will searched for,
 276 #              if not found, configure exits with error
 277 #
 278 # Always add --enable-foo and --disable-foo command line args.
 279 # Distributions want to ensure that several features are compiled in, and it
 280 # is impossible without a --enable-foo that exits if a feature is not found.
 281
 282 default_feature=""
 283 # parse CC options second
 284 for opt do
 285   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 286   case "$opt" in
 287       --without-default-features)
 288           default_feature="no"
 289   ;;
 290   esac
 291 done
 292
 293 EXTRA_CFLAGS=""
 294 EXTRA_CXXFLAGS=""
 295 EXTRA_OBJCFLAGS=""
 296 EXTRA_LDFLAGS=""
 297
 298 debug_tcg="no"
 299 sanitizers="no"
 300 tsan="no"
 301 fortify_source="yes"
 302 EXESUF=""
 303 modules="no"
 304 prefix="/usr/local"
 305 qemu_suffix="qemu"
 306 softmmu="yes"
 307 linux_user=""
 308 bsd_user=""
 309 pie=""
 310 coroutine=""
 311 plugins="$default_feature"
 312 meson=""
 313 ninja=""
 314 bindir="bin"
 315 skip_meson=no
 316 vfio_user_server="disabled"
 317
 318 # The following Meson options are handled manually (still they
 319 # are included in the automatically generated help message)
 320
 321 # 1. Track which submodules are needed
 322 fdt="auto"
 323
 324 # 2. Automatically enable/disable other options
 325 tcg="auto"
 326 cfi="false"
 327
 328 # parse CC options second
 329 for opt do
 330   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 331   case "$opt" in
 332   --cross-prefix=*) cross_prefix="$optarg"
 333                     cross_compile="yes"
 334   ;;
 335   --cc=*) CC="$optarg"
 336   ;;
 337   --cxx=*) CXX="$optarg"
 338   ;;
 339   --cpu=*) cpu="$optarg"
 340   ;;
 341   --extra-cflags=*)
 342     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 343     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 344     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 345     ;;
 346   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 347   ;;
 348   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 349   ;;
 350   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 351   ;;
 352   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 353   ;;
 354   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 355                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 356   ;;
 357   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 358                 eval "cross_cc_${cc_arch}=\$optarg"
 359   ;;
 360   --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
 361   ;;
 362   --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
 363                     eval "cross_prefix_${cc_arch}=\$optarg"
 364   ;;
 365   esac
 366 done
 367 # OS specific
 368 # Using uname is really, really broken.  Once we have the right set of checks
 369 # we can eliminate its usage altogether.
 370
 371 # Preferred compiler:
 372 #  ${CC} (if set)
 373 #  ${cross_prefix}gcc (if cross-prefix specified)
 374 #  system compiler
 375 if test -z "${CC}${cross_prefix}"; then
 376   cc="$host_cc"
 377 else
 378   cc="${CC-${cross_prefix}gcc}"
 379 fi
 380
 381 if test -z "${CXX}${cross_prefix}"; then
 382   cxx="c++"
 383 else
 384   cxx="${CXX-${cross_prefix}g++}"
 385 fi
 386
 387 ar="${AR-${cross_prefix}ar}"
 388 as="${AS-${cross_prefix}as}"
 389 ccas="${CCAS-$cc}"
 390 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 391 ld="${LD-${cross_prefix}ld}"
 392 ranlib="${RANLIB-${cross_prefix}ranlib}"
 393 nm="${NM-${cross_prefix}nm}"
 394 smbd="$SMBD"
 395 strip="${STRIP-${cross_prefix}strip}"
 396 widl="${WIDL-${cross_prefix}widl}"
 397 windres="${WINDRES-${cross_prefix}windres}"
 398 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 399 query_pkg_config() {
 400     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 401 }
 402 pkg_config=query_pkg_config
 403 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 404
 405 # default flags for all hosts
 406 # We use -fwrapv to tell the compiler that we require a C dialect where
 407 # left shift of signed integers is well defined and has the expected
 408 # 2s-complement style results. (Both clang and gcc agree that it
 409 # provides these semantics.)
 410 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 411 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 412 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 413 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 414
 415 QEMU_LDFLAGS=
 416
 417 # Flags that are needed during configure but later taken care of by Meson
 418 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 419 CONFIGURE_LDFLAGS=
 420
 421
 422 check_define() {
 423 cat > $TMPC <<EOF
 424 #if !defined($1)
 425 #error $1 not defined
 426 #endif
 427 int main(void) { return 0; }
 428 EOF
 429   compile_object
 430 }
 431
 432 check_include() {
 433 cat > $TMPC <<EOF
 434 #include <$1>
 435 int main(void) { return 0; }
 436 EOF
 437   compile_object
 438 }
 439
 440 write_c_skeleton() {
 441     cat > $TMPC <<EOF
 442 int main(void) { return 0; }
 443 EOF
 444 }
 445
 446 if check_define __linux__ ; then
 447   targetos=linux
 448 elif check_define _WIN32 ; then
 449   targetos=windows
 450 elif check_define __OpenBSD__ ; then
 451   targetos=openbsd
 452 elif check_define __sun__ ; then
 453   targetos=sunos
 454 elif check_define __HAIKU__ ; then
 455   targetos=haiku
 456 elif check_define __FreeBSD__ ; then
 457   targetos=freebsd
 458 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 459   targetos=gnu/kfreebsd
 460 elif check_define __DragonFly__ ; then
 461   targetos=dragonfly
 462 elif check_define __NetBSD__; then
 463   targetos=netbsd
 464 elif check_define __APPLE__; then
 465   targetos=darwin
 466 else
 467   # This is a fatal error, but don't report it yet, because we
 468   # might be going to just print the --help text, or it might
 469   # be the result of a missing compiler.
 470   targetos=bogus
 471 fi
 472
 473 # OS specific
 474
 475 mingw32="no"
 476 bsd="no"
 477 linux="no"
 478 solaris="no"
 479 case $targetos in
 480 windows)
 481   mingw32="yes"
 482   plugins="no"
 483   pie="no"
 484 ;;
 485 gnu/kfreebsd)
 486   bsd="yes"
 487 ;;
 488 freebsd)
 489   bsd="yes"
 490   make="${MAKE-gmake}"
 491   # needed for kinfo_getvmmap(3) in libutil.h
 492 ;;
 493 dragonfly)
 494   bsd="yes"
 495   make="${MAKE-gmake}"
 496 ;;
 497 netbsd)
 498   bsd="yes"
 499   make="${MAKE-gmake}"
 500 ;;
 501 openbsd)
 502   bsd="yes"
 503   make="${MAKE-gmake}"
 504 ;;
 505 darwin)
 506   bsd="yes"
 507   darwin="yes"
 508   # Disable attempts to use ObjectiveC features in os/object.h since they
 509   # won't work when we're compiling with gcc as a C compiler.
 510   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 511 ;;
 512 sunos)
 513   solaris="yes"
 514   make="${MAKE-gmake}"
 515 # needed for CMSG_ macros in sys/socket.h
 516   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 517 # needed for TIOCWIN* defines in termios.h
 518   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 519   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 520   # Note that this check is broken for cross-compilation: if you're
 521   # cross-compiling to one of these OSes then you'll need to specify
 522   # the correct CPU with the --cpu option.
 523   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 524     cpu="x86_64"
 525   fi
 526 ;;
 527 haiku)
 528   pie="no"
 529   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 530 ;;
 531 linux)
 532   linux="yes"
 533 ;;
 534 esac
 535
 536 if test ! -z "$cpu" ; then
 537   # command line argument
 538   :
 539 elif check_define __i386__ ; then
 540   cpu="i386"
 541 elif check_define __x86_64__ ; then
 542   if check_define __ILP32__ ; then
 543     cpu="x32"
 544   else
 545     cpu="x86_64"
 546   fi
 547 elif check_define __sparc__ ; then
 548   if check_define __arch64__ ; then
 549     cpu="sparc64"
 550   else
 551     cpu="sparc"
 552   fi
 553 elif check_define _ARCH_PPC ; then
 554   if check_define _ARCH_PPC64 ; then
 555     if check_define _LITTLE_ENDIAN ; then
 556       cpu="ppc64le"
 557     else
 558       cpu="ppc64"
 559     fi
 560   else
 561     cpu="ppc"
 562   fi
 563 elif check_define __mips__ ; then
 564   cpu="mips"
 565 elif check_define __s390__ ; then
 566   if check_define __s390x__ ; then
 567     cpu="s390x"
 568   else
 569     cpu="s390"
 570   fi
 571 elif check_define __riscv ; then
 572   cpu="riscv"
 573 elif check_define __arm__ ; then
 574   cpu="arm"
 575 elif check_define __aarch64__ ; then
 576   cpu="aarch64"
 577 elif check_define __loongarch64 ; then
 578   cpu="loongarch64"
 579 else
 580   cpu=$(uname -m)
 581 fi
 582
 583 # Normalise host CPU name, set multilib cflags
 584 # Note that this case should only have supported host CPUs, not guests.
 585 case "$cpu" in
 586   armv*b|armv*l|arm)
 587     cpu="arm" ;;
 588
 589   i386|i486|i586|i686|i86pc|BePC)
 590     cpu="i386"
 591     CPU_CFLAGS="-m32" ;;
 592   x32)
 593     cpu="x86_64"
 594     CPU_CFLAGS="-mx32" ;;
 595   x86_64|amd64)
 596     cpu="x86_64"
 597     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 598     # If we truly care, we should simply detect this case at
 599     # runtime and generate the fallback to serial emulation.
 600     CPU_CFLAGS="-m64 -mcx16" ;;
 601
 602   mips*)
 603     cpu="mips" ;;
 604
 605   ppc)
 606     CPU_CFLAGS="-m32" ;;
 607   ppc64)
 608     CPU_CFLAGS="-m64 -mbig-endian" ;;
 609   ppc64le)
 610     cpu="ppc64"
 611     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 612
 613   s390)
 614     CPU_CFLAGS="-m31" ;;
 615   s390x)
 616     CPU_CFLAGS="-m64" ;;
 617
 618   sparc|sun4[cdmuv])
 619     cpu="sparc"
 620     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 621   sparc64)
 622     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 623 esac
 624
 625 : ${make=${MAKE-make}}
 626
 627 # We prefer python 3.x. A bare 'python' is traditionally
 628 # python 2.x, but some distros have it as python 3.x, so
 629 # we check that too
 630 python=
 631 explicit_python=no
 632 for binary in "${PYTHON-python3}" python
 633 do
 634     if has "$binary"
 635     then
 636         python=$(command -v "$binary")
 637         break
 638     fi
 639 done
 640
 641
 642 # Check for ancillary tools used in testing
 643 genisoimage=
 644 for binary in genisoimage mkisofs
 645 do
 646     if has $binary
 647     then
 648         genisoimage=$(command -v "$binary")
 649         break
 650     fi
 651 done
 652
 653 # Default objcc to clang if available, otherwise use CC
 654 if has clang; then
 655   objcc=clang
 656 else
 657   objcc="$cc"
 658 fi
 659
 660 if test "$mingw32" = "yes" ; then
 661   EXESUF=".exe"
 662   # MinGW needs -mthreads for TLS and macro _MT.
 663   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 664   write_c_skeleton;
 665   prefix="/qemu"
 666   bindir=""
 667   qemu_suffix=""
 668 fi
 669
 670 werror=""
 671
 672 meson_option_build_array() {
 673   printf '['
 674   (if test "$targetos" = windows; then
 675     IFS=\;
 676   else
 677     IFS=:
 678   fi
 679   for e in $1; do
 680     printf '"""'
 681     # backslash escape any '\' and '"' characters
 682     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
 683     printf '""",'
 684   done)
 685   printf ']\n'
 686 }
 687
 688 . "$source_path/scripts/meson-buildoptions.sh"
 689
 690 meson_options=
 691 meson_option_add() {
 692   meson_options="$meson_options $(quote_sh "$1")"
 693 }
 694 meson_option_parse() {
 695   meson_options="$meson_options $(_meson_option_parse "$@")"
 696   if test $? -eq 1; then
 697     echo "ERROR: unknown option $1"
 698     echo "Try '$0 --help' for more information"
 699     exit 1
 700   fi
 701 }
 702
 703 for opt do
 704   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 705   case "$opt" in
 706   --help|-h) show_help=yes
 707   ;;
 708   --version|-V) exec cat "$source_path/VERSION"
 709   ;;
 710   --prefix=*) prefix="$optarg"
 711   ;;
 712   --cross-prefix=*)
 713   ;;
 714   --cc=*)
 715   ;;
 716   --host-cc=*) host_cc="$optarg"
 717   ;;
 718   --cxx=*)
 719   ;;
 720   --objcc=*) objcc="$optarg"
 721   ;;
 722   --make=*) make="$optarg"
 723   ;;
 724   --install=*)
 725   ;;
 726   --python=*) python="$optarg" ; explicit_python=yes
 727   ;;
 728   --skip-meson) skip_meson=yes
 729   ;;
 730   --meson=*) meson="$optarg"
 731   ;;
 732   --ninja=*) ninja="$optarg"
 733   ;;
 734   --smbd=*) smbd="$optarg"
 735   ;;
 736   --extra-cflags=*)
 737   ;;
 738   --extra-cxxflags=*)
 739   ;;
 740   --extra-objcflags=*)
 741   ;;
 742   --extra-ldflags=*)
 743   ;;
 744   --cross-cc-*)
 745   ;;
 746   --cross-prefix-*)
 747   ;;
 748   --enable-debug-info) meson_option_add -Ddebug=true
 749   ;;
 750   --disable-debug-info) meson_option_add -Ddebug=false
 751   ;;
 752   --enable-modules)
 753       modules="yes"
 754   ;;
 755   --disable-modules)
 756       modules="no"
 757   ;;
 758   --cpu=*)
 759   ;;
 760   --target-list=*) target_list="$optarg"
 761                    if test "$target_list_exclude"; then
 762                        error_exit "Can't mix --target-list with --target-list-exclude"
 763                    fi
 764   ;;
 765   --target-list-exclude=*) target_list_exclude="$optarg"
 766                    if test "$target_list"; then
 767                        error_exit "Can't mix --target-list-exclude with --target-list"
 768                    fi
 769   ;;
 770   --with-default-devices) meson_option_add -Ddefault_devices=true
 771   ;;
 772   --without-default-devices) meson_option_add -Ddefault_devices=false
 773   ;;
 774   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 775   ;;
 776   --with-devices-*) device_arch=${opt#--with-devices-};
 777                     device_arch=${device_arch%%=*}
 778                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 779                     if test -f "$cf"; then
 780                         device_archs="$device_archs $device_arch"
 781                         eval "devices_${device_arch}=\$optarg"
 782                     else
 783                         error_exit "File $cf does not exist"
 784                     fi
 785   ;;
 786   --without-default-features) # processed above
 787   ;;
 788   --static)
 789     static="yes"
 790     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 791   ;;
 792   --bindir=*) bindir="$optarg"
 793   ;;
 794   --with-suffix=*) qemu_suffix="$optarg"
 795   ;;
 796   --host=*|--build=*|\
 797   --disable-dependency-tracking|\
 798   --sbindir=*|--sharedstatedir=*|\
 799   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 800   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 801     # These switches are silently ignored, for compatibility with
 802     # autoconf-generated configure scripts. This allows QEMU's
 803     # configure to be used by RPM and similar macros that set
 804     # lots of directory switches by default.
 805   ;;
 806   --enable-debug-tcg) debug_tcg="yes"
 807   ;;
 808   --disable-debug-tcg) debug_tcg="no"
 809   ;;
 810   --enable-debug)
 811       # Enable debugging options that aren't excessively noisy
 812       debug_tcg="yes"
 813       meson_option_parse --enable-debug-mutex ""
 814       meson_option_add -Doptimization=0
 815       fortify_source="no"
 816   ;;
 817   --enable-sanitizers) sanitizers="yes"
 818   ;;
 819   --disable-sanitizers) sanitizers="no"
 820   ;;
 821   --enable-tsan) tsan="yes"
 822   ;;
 823   --disable-tsan) tsan="no"
 824   ;;
 825   --disable-tcg) tcg="disabled"
 826                  plugins="no"
 827   ;;
 828   --enable-tcg) tcg="enabled"
 829   ;;
 830   --disable-system) softmmu="no"
 831   ;;
 832   --enable-system) softmmu="yes"
 833   ;;
 834   --disable-user)
 835       linux_user="no" ;
 836       bsd_user="no" ;
 837   ;;
 838   --enable-user) ;;
 839   --disable-linux-user) linux_user="no"
 840   ;;
 841   --enable-linux-user) linux_user="yes"
 842   ;;
 843   --disable-bsd-user) bsd_user="no"
 844   ;;
 845   --enable-bsd-user) bsd_user="yes"
 846   ;;
 847   --enable-pie) pie="yes"
 848   ;;
 849   --disable-pie) pie="no"
 850   ;;
 851   --enable-werror) werror="yes"
 852   ;;
 853   --disable-werror) werror="no"
 854   ;;
 855   --enable-stack-protector) stack_protector="yes"
 856   ;;
 857   --disable-stack-protector) stack_protector="no"
 858   ;;
 859   --enable-safe-stack) safe_stack="yes"
 860   ;;
 861   --disable-safe-stack) safe_stack="no"
 862   ;;
 863   --enable-cfi)
 864       cfi="true";
 865       meson_option_add -Db_lto=true
 866   ;;
 867   --disable-cfi) cfi="false"
 868   ;;
 869   --disable-fdt) fdt="disabled"
 870   ;;
 871   --enable-fdt) fdt="enabled"
 872   ;;
 873   --enable-fdt=git) fdt="internal"
 874   ;;
 875   --enable-fdt=*) fdt="$optarg"
 876   ;;
 877   --with-coroutine=*) coroutine="$optarg"
 878   ;;
 879   --disable-zlib-test)
 880   ;;
 881   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
 882       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
 883   ;;
 884   --enable-vhdx|--disable-vhdx)
 885       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
 886   ;;
 887   --enable-uuid|--disable-uuid)
 888       echo "$0: $opt is obsolete, UUID support is always built" >&2
 889   ;;
 890   --with-git=*) git="$optarg"
 891   ;;
 892   --with-git-submodules=*)
 893       git_submodules_action="$optarg"
 894   ;;
 895   --enable-plugins) if test "$mingw32" = "yes"; then
 896                         error_exit "TCG plugins not currently supported on Windows platforms"
 897                     else
 898                         plugins="yes"
 899                     fi
 900   ;;
 901   --disable-plugins) plugins="no"
 902   ;;
 903   --enable-containers) use_containers="yes"
 904   ;;
 905   --disable-containers) use_containers="no"
 906   ;;
 907   --gdb=*) gdb_bin="$optarg"
 908   ;;
 909   # backwards compatibility options
 910   --enable-trace-backend=*) meson_option_parse "--enable-trace-backends=$optarg" "$optarg"
 911   ;;
 912   --disable-blobs) meson_option_parse --disable-install-blobs ""
 913   ;;
 914   --enable-vfio-user-server) vfio_user_server="enabled"
 915   ;;
 916   --disable-vfio-user-server) vfio_user_server="disabled"
 917   ;;
 918   --enable-tcmalloc) meson_option_parse --enable-malloc=tcmalloc tcmalloc
 919   ;;
 920   --enable-jemalloc) meson_option_parse --enable-malloc=jemalloc jemalloc
 921   ;;
 922   # everything else has the same name in configure and meson
 923   --*) meson_option_parse "$opt" "$optarg"
 924   ;;
 925   esac
 926 done
 927
 928 # test for any invalid configuration combinations
 929 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
 930     error_exit "Can't enable plugins on non-TCG builds"
 931 fi
 932
 933 case $git_submodules_action in
 934     update|validate)
 935         if test ! -e "$source_path/.git"; then
 936             echo "ERROR: cannot $git_submodules_action git submodules without .git"
 937             exit 1
 938         fi
 939     ;;
 940     ignore)
 941         if ! test -f "$source_path/ui/keycodemapdb/README"
 942         then
 943             echo
 944             echo "ERROR: missing GIT submodules"
 945             echo
 946             if test -e "$source_path/.git"; then
 947                 echo "--with-git-submodules=ignore specified but submodules were not"
 948                 echo "checked out.  Please initialize and update submodules."
 949             else
 950                 echo "This is not a GIT checkout but module content appears to"
 951                 echo "be missing. Do not use 'git archive' or GitHub download links"
 952                 echo "to acquire QEMU source archives. Non-GIT builds are only"
 953                 echo "supported with source archives linked from:"
 954                 echo
 955                 echo "  https://www.qemu.org/download/#source"
 956                 echo
 957                 echo "Developers working with GIT can use scripts/archive-source.sh"
 958                 echo "if they need to create valid source archives."
 959             fi
 960             echo
 961             exit 1
 962         fi
 963     ;;
 964     *)
 965         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
 966         exit 1
 967     ;;
 968 esac
 969
 970 default_target_list=""
 971 mak_wilds=""
 972
 973 if [ "$linux_user" != no ]; then
 974     if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then
 975         linux_user=yes
 976     elif [ "$linux_user" = yes ]; then
 977         error_exit "linux-user not supported on this architecture"
 978     fi
 979 fi
 980 if [ "$bsd_user" != no ]; then
 981     if [ "$bsd_user" = "" ]; then
 982         test $targetos = freebsd && bsd_user=yes
 983     fi
 984     if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
 985         error_exit "bsd-user not supported on this host OS"
 986     fi
 987 fi
 988 if [ "$softmmu" = "yes" ]; then
 989     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 990 fi
 991 if [ "$linux_user" = "yes" ]; then
 992     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 993 fi
 994 if [ "$bsd_user" = "yes" ]; then
 995     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 996 fi
 997
 998 for config in $mak_wilds; do
 999     target="$(basename "$config" .mak)"
1000     if echo "$target_list_exclude" | grep -vq "$target"; then
1001         default_target_list="${default_target_list} $target"
1002     fi
1003 done
1004
1005 if test x"$show_help" = x"yes" ; then
1006 cat << EOF
1007
1008 Usage: configure [options]
1009 Options: [defaults in brackets after descriptions]
1010
1011 Standard options:
1012   --help                   print this message
1013   --prefix=PREFIX          install in PREFIX [$prefix]
1014   --target-list=LIST       set target list (default: build all)
1015 $(echo Available targets: $default_target_list | \
1016   fold -s -w 53 | sed -e 's/^/                           /')
1017   --target-list-exclude=LIST exclude a set of targets from the default target-list
1018
1019 Advanced options (experts only):
1020   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1021   --cc=CC                  use C compiler CC [$cc]
1022   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1023                            build time
1024   --cxx=CXX                use C++ compiler CXX [$cxx]
1025   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1026   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
1027   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
1028   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
1029   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1030   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1031   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
1032   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
1033   --make=MAKE              use specified make [$make]
1034   --python=PYTHON          use specified python [$python]
1035   --meson=MESON            use specified meson [$meson]
1036   --ninja=NINJA            use specified ninja [$ninja]
1037   --smbd=SMBD              use specified smbd [$smbd]
1038   --with-git=GIT           use specified git [$git]
1039   --with-git-submodules=update   update git submodules (default if .git dir exists)
1040   --with-git-submodules=validate fail if git submodules are not up to date
1041   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1042   --static                 enable static build [$static]
1043   --bindir=PATH            install binaries in PATH
1044   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1045   --without-default-features default all --enable-* options to "disabled"
1046   --without-default-devices  do not include any device that is not needed to
1047                            start the emulator (only use if you are including
1048                            desired devices in configs/devices/)
1049   --with-devices-ARCH=NAME override default configs/devices
1050   --enable-debug           enable common debug build options
1051   --enable-sanitizers      enable default sanitizers
1052   --enable-tsan            enable thread sanitizer
1053   --disable-werror         disable compilation abort on warning
1054   --disable-stack-protector disable compiler-provided stack protection
1055   --cpu=CPU                Build for host CPU [$cpu]
1056   --with-coroutine=BACKEND coroutine backend. Supported options:
1057                            ucontext, sigaltstack, windows
1058   --enable-plugins
1059                            enable plugins via shared library loading
1060   --disable-containers     don't use containers for cross-building
1061   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1062 EOF
1063   meson_options_help
1064 cat << EOF
1065   system          all system emulation targets
1066   user            supported user emulation targets
1067   linux-user      all linux usermode emulation targets
1068   bsd-user        all BSD usermode emulation targets
1069   pie             Position Independent Executables
1070   modules         modules support (non-Windows)
1071   debug-tcg       TCG debugging (default is disabled)
1072   debug-info      debugging information
1073   safe-stack      SafeStack Stack Smash Protection. Depends on
1074                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1075
1076 NOTE: The object files are built at the place where configure is launched
1077 EOF
1078 exit 0
1079 fi
1080
1081 # Remove old dependency files to make sure that they get properly regenerated
1082 rm -f ./*/config-devices.mak.d
1083
1084 if test -z "$python"
1085 then
1086     error_exit "Python not found. Use --python=/path/to/python"
1087 fi
1088 if ! has "$make"
1089 then
1090     error_exit "GNU make ($make) not found"
1091 fi
1092
1093 # Note that if the Python conditional here evaluates True we will exit
1094 # with status 1 which is a shell 'false' value.
1095 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1096   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1097       "Use --python=/path/to/python to specify a supported Python."
1098 fi
1099
1100 # Suppress writing compiled files
1101 python="$python -B"
1102
1103 if test -z "$meson"; then
1104     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.59.3; then
1105         meson=meson
1106     elif test "$git_submodules_action" != 'ignore' ; then
1107         meson=git
1108     elif test -e "${source_path}/meson/meson.py" ; then
1109         meson=internal
1110     else
1111         if test "$explicit_python" = yes; then
1112             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1113         else
1114             error_exit "Meson not found.  Use --meson=/path/to/meson"
1115         fi
1116     fi
1117 else
1118     # Meson uses its own Python interpreter to invoke other Python scripts,
1119     # but the user wants to use the one they specified with --python.
1120     #
1121     # We do not want to override the distro Python interpreter (and sometimes
1122     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1123     # just require --meson=git|internal together with --python.
1124     if test "$explicit_python" = yes; then
1125         case "$meson" in
1126             git | internal) ;;
1127             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1128         esac
1129     fi
1130 fi
1131
1132 if test "$meson" = git; then
1133     git_submodules="${git_submodules} meson"
1134 fi
1135
1136 case "$meson" in
1137     git | internal)
1138         meson="$python ${source_path}/meson/meson.py"
1139         ;;
1140     *) meson=$(command -v "$meson") ;;
1141 esac
1142
1143 # Probe for ninja
1144
1145 if test -z "$ninja"; then
1146     for c in ninja ninja-build samu; do
1147         if has $c; then
1148             ninja=$(command -v "$c")
1149             break
1150         fi
1151     done
1152     if test -z "$ninja"; then
1153       error_exit "Cannot find Ninja"
1154     fi
1155 fi
1156
1157 # Check that the C compiler works. Doing this here before testing
1158 # the host CPU ensures that we had a valid CC to autodetect the
1159 # $cpu var (and we should bail right here if that's not the case).
1160 # It also allows the help message to be printed without a CC.
1161 write_c_skeleton;
1162 if compile_object ; then
1163   : C compiler works ok
1164 else
1165     error_exit "\"$cc\" either does not exist or does not work"
1166 fi
1167 if ! compile_prog ; then
1168     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1169 fi
1170
1171 # Consult white-list to determine whether to enable werror
1172 # by default.  Only enable by default for git builds
1173 if test -z "$werror" ; then
1174     if test "$git_submodules_action" != "ignore" && \
1175         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1176         werror="yes"
1177     else
1178         werror="no"
1179     fi
1180 fi
1181
1182 if test "$targetos" = "bogus"; then
1183     # Now that we know that we're not printing the help and that
1184     # the compiler works (so the results of the check_defines we used
1185     # to identify the OS are reliable), if we didn't recognize the
1186     # host OS we should stop now.
1187     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1188 fi
1189
1190 # Check whether the compiler matches our minimum requirements:
1191 cat > $TMPC << EOF
1192 #if defined(__clang_major__) && defined(__clang_minor__)
1193 # ifdef __apple_build_version__
1194 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1195 #   error You need at least XCode Clang v10.0 to compile QEMU
1196 #  endif
1197 # else
1198 #  if __clang_major__ < 6 || (__clang_major__ == 6 && __clang_minor__ < 0)
1199 #   error You need at least Clang v6.0 to compile QEMU
1200 #  endif
1201 # endif
1202 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1203 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1204 #  error You need at least GCC v7.4.0 to compile QEMU
1205 # endif
1206 #else
1207 # error You either need GCC or Clang to compiler QEMU
1208 #endif
1209 int main (void) { return 0; }
1210 EOF
1211 if ! compile_prog "" "" ; then
1212     error_exit "You need at least GCC v7.4 or Clang v6.0 (or XCode Clang v10.0)"
1213 fi
1214
1215 # Accumulate -Wfoo and -Wno-bar separately.
1216 # We will list all of the enable flags first, and the disable flags second.
1217 # Note that we do not add -Werror, because that would enable it for all
1218 # configure tests. If a configure test failed due to -Werror this would
1219 # just silently disable some features, so it's too error prone.
1220
1221 warn_flags=
1222 add_to warn_flags -Wold-style-declaration
1223 add_to warn_flags -Wold-style-definition
1224 add_to warn_flags -Wtype-limits
1225 add_to warn_flags -Wformat-security
1226 add_to warn_flags -Wformat-y2k
1227 add_to warn_flags -Winit-self
1228 add_to warn_flags -Wignored-qualifiers
1229 add_to warn_flags -Wempty-body
1230 add_to warn_flags -Wnested-externs
1231 add_to warn_flags -Wendif-labels
1232 add_to warn_flags -Wexpansion-to-defined
1233 add_to warn_flags -Wimplicit-fallthrough=2
1234
1235 nowarn_flags=
1236 add_to nowarn_flags -Wno-initializer-overrides
1237 add_to nowarn_flags -Wno-missing-include-dirs
1238 add_to nowarn_flags -Wno-shift-negative-value
1239 add_to nowarn_flags -Wno-string-plus-int
1240 add_to nowarn_flags -Wno-typedef-redefinition
1241 add_to nowarn_flags -Wno-tautological-type-limit-compare
1242 add_to nowarn_flags -Wno-psabi
1243 add_to nowarn_flags -Wno-gnu-variable-sized-type-not-at-end
1244
1245 gcc_flags="$warn_flags $nowarn_flags"
1246
1247 cc_has_warning_flag() {
1248     write_c_skeleton;
1249
1250     # Use the positive sense of the flag when testing for -Wno-wombat
1251     # support (gcc will happily accept the -Wno- form of unknown
1252     # warning options).
1253     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1254     compile_prog "-Werror $optflag" ""
1255 }
1256
1257 objcc_has_warning_flag() {
1258     cat > $TMPM <<EOF
1259 int main(void) { return 0; }
1260 EOF
1261
1262     # Use the positive sense of the flag when testing for -Wno-wombat
1263     # support (gcc will happily accept the -Wno- form of unknown
1264     # warning options).
1265     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1266     do_objc -Werror $optflag \
1267       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1268       -o $TMPE $TMPM $QEMU_LDFLAGS
1269 }
1270
1271 for flag in $gcc_flags; do
1272     if cc_has_warning_flag $flag ; then
1273         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1274     fi
1275     if objcc_has_warning_flag $flag ; then
1276         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1277     fi
1278 done
1279
1280 if test "$stack_protector" != "no"; then
1281   cat > $TMPC << EOF
1282 int main(int argc, char *argv[])
1283 {
1284     char arr[64], *p = arr, *c = argv[0];
1285     while (*c) {
1286         *p++ = *c++;
1287     }
1288     return 0;
1289 }
1290 EOF
1291   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1292   sp_on=0
1293   for flag in $gcc_flags; do
1294     # We need to check both a compile and a link, since some compiler
1295     # setups fail only on a .c->.o compile and some only at link time
1296     if compile_object "-Werror $flag" &&
1297        compile_prog "-Werror $flag" ""; then
1298       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1299       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1300       sp_on=1
1301       break
1302     fi
1303   done
1304   if test "$stack_protector" = yes; then
1305     if test $sp_on = 0; then
1306       error_exit "Stack protector not supported"
1307     fi
1308   fi
1309 fi
1310
1311 # Disable -Wmissing-braces on older compilers that warn even for
1312 # the "universal" C zero initializer {0}.
1313 cat > $TMPC << EOF
1314 struct {
1315   int a[2];
1316 } x = {0};
1317 EOF
1318 if compile_object "-Werror" "" ; then
1319   :
1320 else
1321   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
1322 fi
1323
1324 # Our module code doesn't support Windows
1325 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1326   error_exit "Modules are not available for Windows"
1327 fi
1328
1329 # Static linking is not possible with plugins, modules or PIE
1330 if test "$static" = "yes" ; then
1331   if test "$modules" = "yes" ; then
1332     error_exit "static and modules are mutually incompatible"
1333   fi
1334   if test "$plugins" = "yes"; then
1335     error_exit "static and plugins are mutually incompatible"
1336   else
1337     plugins="no"
1338   fi
1339 fi
1340 test "$plugins" = "" && plugins=yes
1341
1342 cat > $TMPC << EOF
1343
1344 #ifdef __linux__
1345 #  define THREAD __thread
1346 #else
1347 #  define THREAD
1348 #endif
1349 static THREAD int tls_var;
1350 int main(void) { return tls_var; }
1351 EOF
1352
1353 if test "$static" = "yes"; then
1354   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1355     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1356     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
1357     pie="yes"
1358   elif test "$pie" = "yes"; then
1359     error_exit "-static-pie not available due to missing toolchain support"
1360   else
1361     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
1362     pie="no"
1363   fi
1364 elif test "$pie" = "no"; then
1365   if compile_prog "-Werror -fno-pie" "-no-pie"; then
1366     CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS"
1367     CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS"
1368     # Meson currently only handles pie as a boolean for now so if we have
1369     # explicitly disabled PIE we need to extend our cflags because it wont.
1370     QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1371   fi
1372 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1373   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1374   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1375   pie="yes"
1376 elif test "$pie" = "yes"; then
1377   error_exit "PIE not available due to missing toolchain support"
1378 else
1379   echo "Disabling PIE due to missing toolchain support"
1380   pie="no"
1381 fi
1382
1383 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
1384 # The combination is known as "full relro", because .got.plt is read-only too.
1385 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
1386   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
1387 fi
1388
1389 ##########################################
1390 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1391 # use i686 as default anyway, but for those that don't, an explicit
1392 # specification is necessary
1393
1394 if test "$cpu" = "i386"; then
1395   cat > $TMPC << EOF
1396 static int sfaa(int *ptr)
1397 {
1398   return __sync_fetch_and_and(ptr, 0);
1399 }
1400
1401 int main(void)
1402 {
1403   int val = 42;
1404   val = __sync_val_compare_and_swap(&val, 0, 1);
1405   sfaa(&val);
1406   return val;
1407 }
1408 EOF
1409   if ! compile_prog "" "" ; then
1410     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1411   fi
1412 fi
1413
1414 if test -z "${target_list+xxx}" ; then
1415     default_targets=yes
1416     for target in $default_target_list; do
1417         target_list="$target_list $target"
1418     done
1419     target_list="${target_list# }"
1420 else
1421     default_targets=no
1422     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1423     for target in $target_list; do
1424         # Check that we recognised the target name; this allows a more
1425         # friendly error message than if we let it fall through.
1426         case " $default_target_list " in
1427             *" $target "*)
1428                 ;;
1429             *)
1430                 error_exit "Unknown target name '$target'"
1431                 ;;
1432         esac
1433     done
1434 fi
1435
1436 # see if system emulation was really requested
1437 case " $target_list " in
1438   *"-softmmu "*) softmmu=yes
1439   ;;
1440   *) softmmu=no
1441   ;;
1442 esac
1443
1444 if test "$tcg" = "auto"; then
1445   if test -z "$target_list"; then
1446     tcg="disabled"
1447   else
1448     tcg="enabled"
1449   fi
1450 fi
1451
1452 if test "$tcg" = "enabled"; then
1453     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1454     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1455 fi
1456
1457 # ---
1458 # big/little endian test
1459 cat > $TMPC << EOF
1460 #include <stdio.h>
1461 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
1462 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
1463 int main(int argc, char *argv[])
1464 {
1465     return printf("%s %s\n", (char *)big_endian, (char *)little_endian);
1466 }
1467 EOF
1468
1469 if compile_prog ; then
1470     if strings -a $TMPE | grep -q BiGeNdIaN ; then
1471         bigendian="yes"
1472     elif strings -a $TMPE | grep -q LiTtLeEnDiAn ; then
1473         bigendian="no"
1474     else
1475         echo big/little test failed
1476         exit 1
1477     fi
1478 else
1479     echo big/little test failed
1480     exit 1
1481 fi
1482
1483 ##########################################
1484 # pkg-config probe
1485
1486 if ! has "$pkg_config_exe"; then
1487   error_exit "pkg-config binary '$pkg_config_exe' not found"
1488 fi
1489
1490 ##########################################
1491 # glib support probe
1492
1493 # When bumping glib_req_ver, please check also whether we should increase
1494 # the _WIN32_WINNT setting in osdep.h according to the value from glib
1495 glib_req_ver=2.56
1496 glib_modules=gthread-2.0
1497 if test "$modules" = yes; then
1498     glib_modules="$glib_modules gmodule-export-2.0"
1499 elif test "$plugins" = "yes"; then
1500     glib_modules="$glib_modules gmodule-no-export-2.0"
1501 fi
1502
1503 for i in $glib_modules; do
1504     if $pkg_config --atleast-version=$glib_req_ver $i; then
1505         glib_cflags=$($pkg_config --cflags $i)
1506         glib_libs=$($pkg_config --libs $i)
1507     else
1508         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
1509     fi
1510 done
1511
1512 glib_bindir="$($pkg_config --variable=bindir glib-2.0)"
1513 if test -z "$glib_bindir" ; then
1514         glib_bindir="$($pkg_config --variable=prefix glib-2.0)"/bin
1515 fi
1516
1517 # This workaround is required due to a bug in pkg-config file for glib as it
1518 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
1519
1520 if test "$static" = yes && test "$mingw32" = yes; then
1521     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
1522 fi
1523
1524 # Sanity check that the current size_t matches the
1525 # size that glib thinks it should be. This catches
1526 # problems on multi-arch where people try to build
1527 # 32-bit QEMU while pointing at 64-bit glib headers
1528 cat > $TMPC <<EOF
1529 #include <glib.h>
1530 #include <unistd.h>
1531
1532 #define QEMU_BUILD_BUG_ON(x) \
1533   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
1534
1535 int main(void) {
1536    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
1537    return 0;
1538 }
1539 EOF
1540
1541 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
1542     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
1543                "You probably need to set PKG_CONFIG_LIBDIR"\
1544                "to point to the right pkg-config files for your"\
1545                "build target"
1546 fi
1547
1548 # Silence clang warnings triggered by glib < 2.57.2
1549 cat > $TMPC << EOF
1550 #include <glib.h>
1551 typedef struct Foo {
1552     int i;
1553 } Foo;
1554 static void foo_free(Foo *f)
1555 {
1556     g_free(f);
1557 }
1558 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
1559 int main(void) { return 0; }
1560 EOF
1561 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
1562     if cc_has_warning_flag "-Wno-unused-function"; then
1563         glib_cflags="$glib_cflags -Wno-unused-function"
1564         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
1565     fi
1566 fi
1567
1568 ##########################################
1569 # fdt probe
1570
1571 case "$fdt" in
1572   auto | enabled | internal)
1573     # Simpler to always update submodule, even if not needed.
1574     git_submodules="${git_submodules} dtc"
1575     ;;
1576 esac
1577
1578 ##########################################
1579 # check and set a backend for coroutine
1580
1581 # We prefer ucontext, but it's not always possible. The fallback
1582 # is sigcontext. On Windows the only valid backend is the Windows
1583 # specific one.
1584
1585 ucontext_works=no
1586 if test "$darwin" != "yes"; then
1587   cat > $TMPC << EOF
1588 #include <ucontext.h>
1589 #ifdef __stub_makecontext
1590 #error Ignoring glibc stub makecontext which will always fail
1591 #endif
1592 int main(void) { makecontext(0, 0, 0); return 0; }
1593 EOF
1594   if compile_prog "" "" ; then
1595     ucontext_works=yes
1596   fi
1597 fi
1598
1599 if test "$coroutine" = ""; then
1600   if test "$mingw32" = "yes"; then
1601     coroutine=win32
1602   elif test "$ucontext_works" = "yes"; then
1603     coroutine=ucontext
1604   else
1605     coroutine=sigaltstack
1606   fi
1607 else
1608   case $coroutine in
1609   windows)
1610     if test "$mingw32" != "yes"; then
1611       error_exit "'windows' coroutine backend only valid for Windows"
1612     fi
1613     # Unfortunately the user visible backend name doesn't match the
1614     # coroutine-*.c filename for this case, so we have to adjust it here.
1615     coroutine=win32
1616     ;;
1617   ucontext)
1618     if test "$ucontext_works" != "yes"; then
1619       error_exit "'ucontext' backend requested but makecontext not available"
1620     fi
1621     ;;
1622   sigaltstack)
1623     if test "$mingw32" = "yes"; then
1624       error_exit "only the 'windows' coroutine backend is valid for Windows"
1625     fi
1626     ;;
1627   *)
1628     error_exit "unknown coroutine backend $coroutine"
1629     ;;
1630   esac
1631 fi
1632
1633 ##################################################
1634 # SafeStack
1635
1636
1637 if test "$safe_stack" = "yes"; then
1638 cat > $TMPC << EOF
1639 int main(int argc, char *argv[])
1640 {
1641 #if ! __has_feature(safe_stack)
1642 #error SafeStack Disabled
1643 #endif
1644     return 0;
1645 }
1646 EOF
1647   flag="-fsanitize=safe-stack"
1648   # Check that safe-stack is supported and enabled.
1649   if compile_prog "-Werror $flag" "$flag"; then
1650     # Flag needed both at compilation and at linking
1651     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1652     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1653   else
1654     error_exit "SafeStack not supported by your compiler"
1655   fi
1656   if test "$coroutine" != "ucontext"; then
1657     error_exit "SafeStack is only supported by the coroutine backend ucontext"
1658   fi
1659 else
1660 cat > $TMPC << EOF
1661 int main(int argc, char *argv[])
1662 {
1663 #if defined(__has_feature)
1664 #if __has_feature(safe_stack)
1665 #error SafeStack Enabled
1666 #endif
1667 #endif
1668     return 0;
1669 }
1670 EOF
1671 if test "$safe_stack" = "no"; then
1672   # Make sure that safe-stack is disabled
1673   if ! compile_prog "-Werror" ""; then
1674     # SafeStack was already enabled, try to explicitly remove the feature
1675     flag="-fno-sanitize=safe-stack"
1676     if ! compile_prog "-Werror $flag" "$flag"; then
1677       error_exit "Configure cannot disable SafeStack"
1678     fi
1679     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1680     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1681   fi
1682 else # "$safe_stack" = ""
1683   # Set safe_stack to yes or no based on pre-existing flags
1684   if compile_prog "-Werror" ""; then
1685     safe_stack="no"
1686   else
1687     safe_stack="yes"
1688     if test "$coroutine" != "ucontext"; then
1689       error_exit "SafeStack is only supported by the coroutine backend ucontext"
1690     fi
1691   fi
1692 fi
1693 fi
1694
1695 ########################################
1696 # check if ccache is interfering with
1697 # semantic analysis of macros
1698
1699 unset CCACHE_CPP2
1700 ccache_cpp2=no
1701 cat > $TMPC << EOF
1702 static const int Z = 1;
1703 #define fn() ({ Z; })
1704 #define TAUT(X) ((X) == Z)
1705 #define PAREN(X, Y) (X == Y)
1706 #define ID(X) (X)
1707 int main(int argc, char *argv[])
1708 {
1709     int x = 0, y = 0;
1710     x = ID(x);
1711     x = fn();
1712     fn();
1713     if (PAREN(x, y)) return 0;
1714     if (TAUT(Z)) return 0;
1715     return 0;
1716 }
1717 EOF
1718
1719 if ! compile_object "-Werror"; then
1720     ccache_cpp2=yes
1721 fi
1722
1723 #################################################
1724 # clang does not support glibc + FORTIFY_SOURCE.
1725
1726 if test "$fortify_source" != "no"; then
1727   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
1728     fortify_source="no";
1729   elif test -n "$cxx" && has $cxx &&
1730        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
1731     fortify_source="no";
1732   else
1733     fortify_source="yes"
1734   fi
1735 fi
1736
1737 ##########################################
1738 # checks for sanitizers
1739
1740 have_asan=no
1741 have_ubsan=no
1742 have_asan_iface_h=no
1743 have_asan_iface_fiber=no
1744
1745 if test "$sanitizers" = "yes" ; then
1746   write_c_skeleton
1747   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
1748       have_asan=yes
1749   fi
1750
1751   # we could use a simple skeleton for flags checks, but this also
1752   # detect the static linking issue of ubsan, see also:
1753   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
1754   cat > $TMPC << EOF
1755 #include <stdlib.h>
1756 int main(void) {
1757     void *tmp = malloc(10);
1758     if (tmp != NULL) {
1759         return *(int *)(tmp + 2);
1760     }
1761     return 1;
1762 }
1763 EOF
1764   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
1765       have_ubsan=yes
1766   fi
1767
1768   if check_include "sanitizer/asan_interface.h" ; then
1769       have_asan_iface_h=yes
1770   fi
1771
1772   cat > $TMPC << EOF
1773 #include <sanitizer/asan_interface.h>
1774 int main(void) {
1775   __sanitizer_start_switch_fiber(0, 0, 0);
1776   return 0;
1777 }
1778 EOF
1779   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
1780       have_asan_iface_fiber=yes
1781   fi
1782 fi
1783
1784 # Thread sanitizer is, for now, much noisier than the other sanitizers;
1785 # keep it separate until that is not the case.
1786 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
1787   error_exit "TSAN is not supported with other sanitiziers."
1788 fi
1789 have_tsan=no
1790 have_tsan_iface_fiber=no
1791 if test "$tsan" = "yes" ; then
1792   write_c_skeleton
1793   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1794       have_tsan=yes
1795   fi
1796   cat > $TMPC << EOF
1797 #include <sanitizer/tsan_interface.h>
1798 int main(void) {
1799   __tsan_create_fiber(0);
1800   return 0;
1801 }
1802 EOF
1803   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1804       have_tsan_iface_fiber=yes
1805   fi
1806 fi
1807
1808 ##########################################
1809 # functions to probe cross compilers
1810
1811 container="no"
1812 if test $use_containers = "yes"; then
1813     if has "docker" || has "podman"; then
1814         container=$($python "$source_path"/tests/docker/docker.py probe)
1815     fi
1816 fi
1817
1818 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1819 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1820 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1821 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1822 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1823 : ${cross_prefix_armeb="$cross_prefix_arm"}
1824 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1825 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1826 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1827 : ${cross_prefix_i386="i686-linux-gnu-"}
1828 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1829 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1830 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1831 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1832 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1833 : ${cross_prefix_mips="mips-linux-gnu-"}
1834 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1835 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1836 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1837 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1838 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1839 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1840 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1841 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1842 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1843 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1844
1845 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1846 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1847 : ${cross_cc_armeb="$cross_cc_arm"}
1848 : ${cross_cc_cflags_armeb="-mbig-endian"}
1849 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1850 : ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
1851 : ${cross_cc_cflags_i386="-m32"}
1852 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1853 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1854 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1855 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1856 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1857 : ${cross_cc_sparc="$cross_cc_sparc64"}
1858 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1859 : ${cross_cc_cflags_x86_64="-m64"}
1860
1861 compute_target_variable() {
1862   eval "$2="
1863   if eval test -n "\"\${cross_prefix_$1}\""; then
1864     if eval has "\"\${cross_prefix_$1}\$3\""; then
1865       eval "$2=\"\${cross_prefix_$1}\$3\""
1866     fi
1867   fi
1868 }
1869
1870 # probe_target_compiler TARGET
1871 #
1872 # Look for a compiler for the given target, either native or cross.
1873 # Set variables target_* if a compiler is found, and container_cross_*
1874 # if a Docker-based cross-compiler image is known for the target.
1875 # Set got_cross_cc to yes/no depending on whether a non-container-based
1876 # compiler was found.
1877 #
1878 # If TARGET is a user-mode emulation target, also set build_static to
1879 # "y" if static linking is possible.
1880 #
1881 probe_target_compiler() {
1882   # reset all output variables
1883   got_cross_cc=no
1884   container_image=
1885   container_hosts=
1886   container_cross_cc=
1887   container_cross_ar=
1888   container_cross_as=
1889   container_cross_ld=
1890   container_cross_nm=
1891   container_cross_objcopy=
1892   container_cross_ranlib=
1893   container_cross_strip=
1894
1895   target_arch=${1%%-*}
1896   case $target_arch in
1897     aarch64) container_hosts="x86_64 aarch64" ;;
1898     alpha) container_hosts=x86_64 ;;
1899     arm) container_hosts="x86_64 aarch64" ;;
1900     cris) container_hosts=x86_64 ;;
1901     hexagon) container_hosts=x86_64 ;;
1902     hppa) container_hosts=x86_64 ;;
1903     i386) container_hosts=x86_64 ;;
1904     loongarch64) container_hosts=x86_64 ;;
1905     m68k) container_hosts=x86_64 ;;
1906     microblaze) container_hosts=x86_64 ;;
1907     mips64el) container_hosts=x86_64 ;;
1908     mips64) container_hosts=x86_64 ;;
1909     mipsel) container_hosts=x86_64 ;;
1910     mips) container_hosts=x86_64 ;;
1911     nios2) container_hosts=x86_64 ;;
1912     ppc) container_hosts=x86_64 ;;
1913     ppc64|ppc64le) container_hosts=x86_64 ;;
1914     riscv64) container_hosts=x86_64 ;;
1915     s390x) container_hosts=x86_64 ;;
1916     sh4) container_hosts=x86_64 ;;
1917     sparc64) container_hosts=x86_64 ;;
1918     tricore) container_hosts=x86_64 ;;
1919     x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1920     xtensa*) container_hosts=x86_64 ;;
1921   esac
1922
1923   for host in $container_hosts; do
1924     test "$container" != no || continue
1925     test "$host" = "$cpu" || continue
1926     case $target_arch in
1927       aarch64)
1928         # We don't have any bigendian build tools so we only use this for AArch64
1929         container_image=debian-arm64-cross
1930         container_cross_prefix=aarch64-linux-gnu-
1931         container_cross_cc=${container_cross_prefix}gcc-10
1932         ;;
1933       alpha)
1934         container_image=debian-alpha-cross
1935         container_cross_prefix=alpha-linux-gnu-
1936         ;;
1937       arm)
1938         # We don't have any bigendian build tools so we only use this for ARM
1939         container_image=debian-armhf-cross
1940         container_cross_prefix=arm-linux-gnueabihf-
1941         ;;
1942       cris)
1943         container_image=fedora-cris-cross
1944         container_cross_prefix=cris-linux-gnu-
1945         ;;
1946       hexagon)
1947         container_image=debian-hexagon-cross
1948         container_cross_prefix=hexagon-unknown-linux-musl-
1949         container_cross_cc=${container_cross_prefix}clang
1950         ;;
1951       hppa)
1952         container_image=debian-hppa-cross
1953         container_cross_prefix=hppa-linux-gnu-
1954         ;;
1955       i386)
1956         container_image=fedora-i386-cross
1957         container_cross_prefix=
1958         ;;
1959       loongarch64)
1960         container_image=debian-loongarch-cross
1961         container_cross_prefix=loongarch64-unknown-linux-gnu-
1962         ;;
1963       m68k)
1964         container_image=debian-m68k-cross
1965         container_cross_prefix=m68k-linux-gnu-
1966         ;;
1967       microblaze)
1968         container_image=debian-microblaze-cross
1969         container_cross_prefix=microblaze-linux-musl-
1970         ;;
1971       mips64el)
1972         container_image=debian-mips64el-cross
1973         container_cross_prefix=mips64el-linux-gnuabi64-
1974         ;;
1975       mips64)
1976         container_image=debian-mips64-cross
1977         container_cross_prefix=mips64-linux-gnuabi64-
1978         ;;
1979       mipsel)
1980         container_image=debian-mipsel-cross
1981         container_cross_prefix=mipsel-linux-gnu-
1982         ;;
1983       mips)
1984         container_image=debian-mips-cross
1985         container_cross_prefix=mips-linux-gnu-
1986         ;;
1987       nios2)
1988         container_image=debian-nios2-cross
1989         container_cross_prefix=nios2-linux-gnu-
1990         ;;
1991       ppc)
1992         container_image=debian-powerpc-test-cross
1993         container_cross_prefix=powerpc-linux-gnu-
1994         container_cross_cc=${container_cross_prefix}gcc-10
1995         ;;
1996       ppc64|ppc64le)
1997         container_image=debian-powerpc-test-cross
1998         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1999         container_cross_cc=${container_cross_prefix}gcc-10
2000         ;;
2001       riscv64)
2002         container_image=debian-riscv64-test-cross
2003         container_cross_prefix=riscv64-linux-gnu-
2004         ;;
2005       s390x)
2006         container_image=debian-s390x-cross
2007         container_cross_prefix=s390x-linux-gnu-
2008         ;;
2009       sh4)
2010         container_image=debian-sh4-cross
2011         container_cross_prefix=sh4-linux-gnu-
2012         ;;
2013       sparc64)
2014         container_image=debian-sparc64-cross
2015         container_cross_prefix=sparc64-linux-gnu-
2016         ;;
2017       tricore)
2018         container_image=debian-tricore-cross
2019         container_cross_prefix=tricore-
2020         container_cross_as=tricore-as
2021         container_cross_ld=tricore-ld
2022         break
2023         ;;
2024       x86_64)
2025         container_image=debian-amd64-cross
2026         container_cross_prefix=x86_64-linux-gnu-
2027         ;;
2028       xtensa*)
2029         container_hosts=x86_64
2030         container_image=debian-xtensa-cross
2031
2032         # default to the dc232b cpu
2033         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
2034         ;;
2035     esac
2036     : ${container_cross_cc:=${container_cross_prefix}gcc}
2037     : ${container_cross_ar:=${container_cross_prefix}ar}
2038     : ${container_cross_as:=${container_cross_prefix}as}
2039     : ${container_cross_ld:=${container_cross_prefix}ld}
2040     : ${container_cross_nm:=${container_cross_prefix}nm}
2041     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
2042     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
2043     : ${container_cross_strip:=${container_cross_prefix}strip}
2044   done
2045
2046   try=cross
2047   case "$target_arch:$cpu" in
2048     aarch64_be:aarch64 | \
2049     armeb:arm | \
2050     i386:x86_64 | \
2051     mips*:mips64 | \
2052     ppc*:ppc64 | \
2053     sparc:sparc64 | \
2054     "$cpu:$cpu")
2055       try='native cross' ;;
2056   esac
2057   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
2058   for thistry in $try; do
2059     case $thistry in
2060     native)
2061       target_cc=$cc
2062       target_ccas=$ccas
2063       target_ar=$ar
2064       target_as=$as
2065       target_ld=$ld
2066       target_nm=$nm
2067       target_objcopy=$objcopy
2068       target_ranlib=$ranlib
2069       target_strip=$strip
2070       ;;
2071     cross)
2072       target_cc=
2073       if eval test -n "\"\${cross_cc_$target_arch}\""; then
2074         if eval has "\"\${cross_cc_$target_arch}\""; then
2075           eval "target_cc=\"\${cross_cc_$target_arch}\""
2076         fi
2077       else
2078         compute_target_variable $target_arch target_cc gcc
2079       fi
2080       target_ccas=$target_cc
2081       compute_target_variable $target_arch target_ar ar
2082       compute_target_variable $target_arch target_as as
2083       compute_target_variable $target_arch target_ld ld
2084       compute_target_variable $target_arch target_nm nm
2085       compute_target_variable $target_arch target_objcopy objcopy
2086       compute_target_variable $target_arch target_ranlib ranlib
2087       compute_target_variable $target_arch target_strip strip
2088       ;;
2089     esac
2090
2091     if test -n "$target_cc"; then
2092       case $target_arch in
2093         i386|x86_64)
2094           if $target_cc --version | grep -qi "clang"; then
2095             continue
2096           fi
2097           ;;
2098       esac
2099     elif test -n "$target_as" && test -n "$target_ld"; then
2100       # Special handling for assembler only targets
2101       case $target in
2102         tricore-softmmu)
2103           build_static=
2104           got_cross_cc=yes
2105           break
2106           ;;
2107         *)
2108           continue
2109           ;;
2110       esac
2111     else
2112       continue
2113     fi
2114
2115     write_c_skeleton
2116     case $1 in
2117       *-softmmu)
2118         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
2119           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
2120           got_cross_cc=yes
2121           break
2122         fi
2123         ;;
2124       *)
2125         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
2126           build_static=y
2127           got_cross_cc=yes
2128           break
2129         fi
2130         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
2131           build_static=
2132           got_cross_cc=yes
2133           break
2134         fi
2135         ;;
2136     esac
2137   done
2138   if test $got_cross_cc != yes; then
2139     build_static=
2140     target_cc=
2141     target_ccas=
2142     target_ar=
2143     target_as=
2144     target_ld=
2145     target_nm=
2146     target_objcopy=
2147     target_ranlib=
2148     target_strip=
2149   fi
2150 }
2151
2152 write_target_makefile() {
2153   echo "EXTRA_CFLAGS=$target_cflags"
2154   if test -n "$target_cc"; then
2155     echo "CC=$target_cc"
2156     echo "CCAS=$target_ccas"
2157   fi
2158   if test -n "$target_ar"; then
2159     echo "AR=$target_ar"
2160   fi
2161   if test -n "$target_as"; then
2162     echo "AS=$target_as"
2163   fi
2164   if test -n "$target_ld"; then
2165     echo "LD=$target_ld"
2166   fi
2167   if test -n "$target_nm"; then
2168     echo "NM=$target_nm"
2169   fi
2170   if test -n "$target_objcopy"; then
2171     echo "OBJCOPY=$target_objcopy"
2172   fi
2173   if test -n "$target_ranlib"; then
2174     echo "RANLIB=$target_ranlib"
2175   fi
2176   if test -n "$target_strip"; then
2177     echo "STRIP=$target_strip"
2178   fi
2179 }
2180
2181 write_container_target_makefile() {
2182   echo "EXTRA_CFLAGS=$target_cflags"
2183   if test -n "$container_cross_cc"; then
2184     echo "CC=\$(DOCKER_SCRIPT) cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2185     echo "CCAS=\$(DOCKER_SCRIPT) cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2186   fi
2187   echo "AR=\$(DOCKER_SCRIPT) cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
2188   echo "AS=\$(DOCKER_SCRIPT) cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
2189   echo "LD=\$(DOCKER_SCRIPT) cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
2190   echo "NM=\$(DOCKER_SCRIPT) cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
2191   echo "OBJCOPY=\$(DOCKER_SCRIPT) cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
2192   echo "RANLIB=\$(DOCKER_SCRIPT) cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
2193   echo "STRIP=\$(DOCKER_SCRIPT) cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
2194 }
2195
2196
2197
2198 ##########################################
2199 # check for vfio_user_server
2200
2201 case "$vfio_user_server" in
2202   enabled )
2203     if test "$git_submodules_action" != "ignore"; then
2204       git_submodules="${git_submodules} subprojects/libvfio-user"
2205     fi
2206     ;;
2207 esac
2208
2209 ##########################################
2210 # End of CC checks
2211 # After here, no more $cc or $ld runs
2212
2213 write_c_skeleton
2214
2215 if test "$fortify_source" = "yes" ; then
2216   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2217 fi
2218
2219 if test "$have_asan" = "yes"; then
2220   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2221   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2222   if test "$have_asan_iface_h" = "no" ; then
2223       echo "ASAN build enabled, but ASAN header missing." \
2224            "Without code annotation, the report may be inferior."
2225   elif test "$have_asan_iface_fiber" = "no" ; then
2226       echo "ASAN build enabled, but ASAN header is too old." \
2227            "Without code annotation, the report may be inferior."
2228   fi
2229 fi
2230 if test "$have_tsan" = "yes" ; then
2231   if test "$have_tsan_iface_fiber" = "yes" ; then
2232     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2233     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2234   else
2235     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2236   fi
2237 elif test "$tsan" = "yes" ; then
2238   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2239 fi
2240 if test "$have_ubsan" = "yes"; then
2241   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2242   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2243 fi
2244
2245 ##########################################
2246
2247 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
2248 if test "$solaris" = "no" && test "$tsan" = "no"; then
2249     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
2250         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
2251     fi
2252 fi
2253
2254 # Guest agent Windows MSI package
2255
2256 if test "$QEMU_GA_MANUFACTURER" = ""; then
2257   QEMU_GA_MANUFACTURER=QEMU
2258 fi
2259 if test "$QEMU_GA_DISTRO" = ""; then
2260   QEMU_GA_DISTRO=Linux
2261 fi
2262 if test "$QEMU_GA_VERSION" = ""; then
2263     QEMU_GA_VERSION=$(cat "$source_path"/VERSION)
2264 fi
2265
2266
2267 #######################################
2268 # cross-compiled firmware targets
2269
2270 # Set up build tree symlinks that point back into the source tree
2271 # (these can be both files and directories).
2272 # Caution: avoid adding files or directories here using wildcards. This
2273 # will result in problems later if a new file matching the wildcard is
2274 # added to the source tree -- nothing will cause configure to be rerun
2275 # so the build tree will be missing the link back to the new file, and
2276 # tests might fail. Prefer to keep the relevant files in their own
2277 # directory and symlink the directory instead.
2278 LINKS="Makefile"
2279 LINKS="$LINKS tests/tcg/Makefile.target"
2280 LINKS="$LINKS pc-bios/optionrom/Makefile"
2281 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
2282 LINKS="$LINKS pc-bios/vof/Makefile"
2283 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
2284 LINKS="$LINKS tests/avocado tests/data"
2285 LINKS="$LINKS tests/qemu-iotests/check"
2286 LINKS="$LINKS python"
2287 LINKS="$LINKS contrib/plugins/Makefile "
2288 for f in $LINKS ; do
2289     if [ -e "$source_path/$f" ]; then
2290         mkdir -p "$(dirname ./"$f")"
2291         symlink "$source_path/$f" "$f"
2292     fi
2293 done
2294
2295 # Mac OS X ships with a broken assembler
2296 roms=
2297 probe_target_compiler i386-softmmu
2298 if test -n "$target_cc" &&
2299         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2300         test "$targetos" != "haiku" && test "$softmmu" = yes ; then
2301     # Different host OS linkers have different ideas about the name of the ELF
2302     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
2303     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
2304     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
2305         if "$target_ld" -verbose 2>&1 | grep -q "^[[:space:]]*${emu}[[:space:]]*$"; then
2306             ld_i386_emulation="$emu"
2307             break
2308         fi
2309     done
2310     if test -n "$ld_i386_emulation"; then
2311         roms="pc-bios/optionrom"
2312         config_mak=pc-bios/optionrom/config.mak
2313         echo "# Automatically generated by configure - do not modify" > $config_mak
2314         echo "TOPSRC_DIR=$source_path" >> $config_mak
2315         echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_mak
2316         write_target_makefile >> $config_mak
2317     fi
2318 fi
2319
2320 probe_target_compiler ppc-softmmu
2321 if test -n "$target_cc" && test "$softmmu" = yes; then
2322     roms="$roms pc-bios/vof"
2323     config_mak=pc-bios/vof/config.mak
2324     echo "# Automatically generated by configure - do not modify" > $config_mak
2325     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
2326     write_target_makefile >> $config_mak
2327 fi
2328
2329 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
2330 # (which is the lowest architecture level that Clang supports)
2331 probe_target_compiler s390x-softmmu
2332 if test -n "$target_cc" && test "$softmmu" = yes; then
2333   write_c_skeleton
2334   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
2335   has_z900=$?
2336   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
2337     if [ $has_z900 != 0 ]; then
2338       echo "WARNING: Your compiler does not support the z900!"
2339       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2340     fi
2341     roms="$roms pc-bios/s390-ccw"
2342     config_mak=pc-bios/s390-ccw/config-host.mak
2343     echo "# Automatically generated by configure - do not modify" > $config_mak
2344     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
2345     write_target_makefile >> $config_mak
2346     # SLOF is required for building the s390-ccw firmware on s390x,
2347     # since it is using the libnet code from SLOF for network booting.
2348     git_submodules="${git_submodules} roms/SLOF"
2349   fi
2350 fi
2351
2352 #######################################
2353 # generate config-host.mak
2354
2355 # Check that the C++ compiler exists and works with the C compiler.
2356 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
2357 if has $cxx; then
2358     cat > $TMPC <<EOF
2359 int c_function(void);
2360 int main(void) { return c_function(); }
2361 EOF
2362
2363     compile_object
2364
2365     cat > $TMPCXX <<EOF
2366 extern "C" {
2367    int c_function(void);
2368 }
2369 int c_function(void) { return 42; }
2370 EOF
2371
2372     update_cxxflags
2373
2374     if do_cxx $CXXFLAGS $EXTRA_CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
2375         # C++ compiler $cxx works ok with C compiler $cc
2376         :
2377     else
2378         echo "C++ compiler $cxx does not work with C compiler $cc"
2379         echo "Disabling C++ specific optional code"
2380         cxx=
2381     fi
2382 else
2383     echo "No C++ compiler available; disabling C++ specific optional code"
2384     cxx=
2385 fi
2386
2387 if ! (GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2388     exit 1
2389 fi
2390
2391 config_host_mak="config-host.mak"
2392
2393 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2394 echo >> $config_host_mak
2395
2396 echo all: >> $config_host_mak
2397 echo "GIT=$git" >> $config_host_mak
2398 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2399 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2400
2401 if test "$debug_tcg" = "yes" ; then
2402   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2403 fi
2404 if test "$mingw32" = "yes" ; then
2405   echo "CONFIG_WIN32=y" >> $config_host_mak
2406   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
2407   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
2408   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
2409 else
2410   echo "CONFIG_POSIX=y" >> $config_host_mak
2411 fi
2412
2413 if test "$linux" = "yes" ; then
2414   echo "CONFIG_LINUX=y" >> $config_host_mak
2415 fi
2416
2417 if test "$darwin" = "yes" ; then
2418   echo "CONFIG_DARWIN=y" >> $config_host_mak
2419 fi
2420
2421 if test "$solaris" = "yes" ; then
2422   echo "CONFIG_SOLARIS=y" >> $config_host_mak
2423 fi
2424 if test "$static" = "yes" ; then
2425   echo "CONFIG_STATIC=y" >> $config_host_mak
2426 fi
2427 echo "SRC_PATH=$source_path" >> $config_host_mak
2428 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2429 if test "$modules" = "yes"; then
2430   echo "CONFIG_MODULES=y" >> $config_host_mak
2431 fi
2432
2433 # XXX: suppress that
2434 if [ "$bsd" = "yes" ] ; then
2435   echo "CONFIG_BSD=y" >> $config_host_mak
2436 fi
2437
2438 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2439
2440 if test "$have_asan_iface_fiber" = "yes" ; then
2441     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2442 fi
2443
2444 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2445     echo "CONFIG_TSAN=y" >> $config_host_mak
2446 fi
2447
2448 if test "$plugins" = "yes" ; then
2449     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2450 fi
2451
2452 if test -n "$gdb_bin"; then
2453     gdb_version=$($gdb_bin --version | head -n 1)
2454     if version_ge ${gdb_version##* } 9.1; then
2455         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2456     fi
2457 fi
2458
2459 echo "ROMS=$roms" >> $config_host_mak
2460 echo "MAKE=$make" >> $config_host_mak
2461 echo "PYTHON=$python" >> $config_host_mak
2462 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2463 echo "MESON=$meson" >> $config_host_mak
2464 echo "NINJA=$ninja" >> $config_host_mak
2465 echo "CC=$cc" >> $config_host_mak
2466 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2467 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
2468 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2469 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2470 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2471 echo "GLIB_BINDIR=$glib_bindir" >> $config_host_mak
2472 echo "GLIB_VERSION=$(pkg-config --modversion glib-2.0)" >> $config_host_mak
2473 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2474 echo "EXESUF=$EXESUF" >> $config_host_mak
2475
2476 # use included Linux headers
2477 if test "$linux" = "yes" ; then
2478   mkdir -p linux-headers
2479   case "$cpu" in
2480   i386|x86_64)
2481     linux_arch=x86
2482     ;;
2483   ppc|ppc64)
2484     linux_arch=powerpc
2485     ;;
2486   s390x)
2487     linux_arch=s390
2488     ;;
2489   aarch64)
2490     linux_arch=arm64
2491     ;;
2492   loongarch*)
2493     linux_arch=loongarch
2494     ;;
2495   mips64)
2496     linux_arch=mips
2497     ;;
2498   *)
2499     # For most CPUs the kernel architecture name and QEMU CPU name match.
2500     linux_arch="$cpu"
2501     ;;
2502   esac
2503     # For non-KVM architectures we will not have asm headers
2504     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2505       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2506     fi
2507 fi
2508
2509 for target in $target_list; do
2510     target_dir="$target"
2511     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2512     mkdir -p "$target_dir"
2513     case $target in
2514         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2515         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2516     esac
2517 done
2518
2519 if test "$default_targets" = "yes"; then
2520   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2521 fi
2522
2523 if test "$ccache_cpp2" = "yes"; then
2524   echo "export CCACHE_CPP2=y" >> $config_host_mak
2525 fi
2526
2527 if test "$safe_stack" = "yes"; then
2528   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
2529 fi
2530
2531 # tests/tcg configuration
2532 (makefile=tests/tcg/Makefile.prereqs
2533 echo "# Automatically generated by configure - do not modify" > $makefile
2534
2535 config_host_mak=tests/tcg/config-host.mak
2536 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2537 echo "SRC_PATH=$source_path" >> $config_host_mak
2538 echo "HOST_CC=$host_cc" >> $config_host_mak
2539
2540 tcg_tests_targets=
2541 for target in $target_list; do
2542   arch=${target%%-*}
2543
2544   config_target_mak=tests/tcg/config-$target.mak
2545
2546   echo "# Automatically generated by configure - do not modify" > $config_target_mak
2547   echo "TARGET_NAME=$arch" >> "$config_target_mak"
2548   case $target in
2549     xtensa*-linux-user)
2550       # the toolchain is not complete with headers, only build softmmu tests
2551       continue
2552       ;;
2553     *-softmmu)
2554       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
2555       qemu="qemu-system-$arch"
2556       ;;
2557     *-linux-user|*-bsd-user)
2558       qemu="qemu-$arch"
2559       ;;
2560   esac
2561
2562   probe_target_compiler $target
2563   if test $got_cross_cc = yes; then
2564       # Test for compiler features for optional tests. We only do this
2565       # for cross compilers because ensuring the docker containers based
2566       # compilers is a requirememt for adding a new test that needs a
2567       # compiler feature.
2568
2569       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
2570       write_target_makefile >> "$config_target_mak"
2571       case $target in
2572           aarch64-*)
2573               if do_compiler "$target_cc" $target_cflags \
2574                              -march=armv8.1-a+sve -o $TMPE $TMPC; then
2575                   echo "CROSS_CC_HAS_SVE=y" >> "$config_target_mak"
2576               fi
2577               if do_compiler "$target_cc" $target_cflags \
2578                              -march=armv8.1-a+sve2 -o $TMPE $TMPC; then
2579                   echo "CROSS_CC_HAS_SVE2=y" >> "$config_target_mak"
2580               fi
2581               if do_compiler "$target_cc" $target_cflags \
2582                              -march=armv8.3-a -o $TMPE $TMPC; then
2583                   echo "CROSS_CC_HAS_ARMV8_3=y" >> "$config_target_mak"
2584               fi
2585               if do_compiler "$target_cc" $target_cflags \
2586                              -mbranch-protection=standard -o $TMPE $TMPC; then
2587                   echo "CROSS_CC_HAS_ARMV8_BTI=y" >> "$config_target_mak"
2588               fi
2589               if do_compiler "$target_cc" $target_cflags \
2590                              -march=armv8.5-a+memtag -o $TMPE $TMPC; then
2591                   echo "CROSS_CC_HAS_ARMV8_MTE=y" >> "$config_target_mak"
2592               fi
2593               ;;
2594           ppc*)
2595               if do_compiler "$target_cc" $target_cflags \
2596                              -mpower8-vector -o $TMPE $TMPC; then
2597                   echo "CROSS_CC_HAS_POWER8_VECTOR=y" >> "$config_target_mak"
2598               fi
2599               if do_compiler "$target_cc" $target_cflags \
2600                              -mpower10 -o $TMPE $TMPC; then
2601                   echo "CROSS_CC_HAS_POWER10=y" >> "$config_target_mak"
2602               fi
2603               ;;
2604           i386-linux-user)
2605               if do_compiler "$target_cc" $target_cflags \
2606                              -Werror -fno-pie -o $TMPE $TMPC; then
2607                   echo "CROSS_CC_HAS_I386_NOPIE=y" >> "$config_target_mak"
2608               fi
2609               ;;
2610       esac
2611   elif test -n "$container_image"; then
2612       echo "build-tcg-tests-$target: docker-image-$container_image" >> $makefile
2613       echo "BUILD_STATIC=y" >> "$config_target_mak"
2614       write_container_target_makefile >> "$config_target_mak"
2615       case $target in
2616           aarch64-*)
2617               echo "CROSS_CC_HAS_SVE=y" >> "$config_target_mak"
2618               echo "CROSS_CC_HAS_SVE2=y" >> "$config_target_mak"
2619               echo "CROSS_CC_HAS_ARMV8_3=y" >> "$config_target_mak"
2620               echo "CROSS_CC_HAS_ARMV8_BTI=y" >> "$config_target_mak"
2621               echo "CROSS_CC_HAS_ARMV8_MTE=y" >> "$config_target_mak"
2622               ;;
2623           ppc*)
2624               echo "CROSS_CC_HAS_POWER8_VECTOR=y" >> "$config_target_mak"
2625               echo "CROSS_CC_HAS_POWER10=y" >> "$config_target_mak"
2626               ;;
2627           i386-linux-user)
2628               echo "CROSS_CC_HAS_I386_NOPIE=y" >> "$config_target_mak"
2629               ;;
2630       esac
2631       got_cross_cc=yes
2632   fi
2633   if test $got_cross_cc = yes; then
2634       mkdir -p tests/tcg/$target
2635       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
2636       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> $makefile
2637       tcg_tests_targets="$tcg_tests_targets $target"
2638   fi
2639 done
2640 echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> $makefile)
2641
2642 if test "$skip_meson" = no; then
2643   cross="config-meson.cross.new"
2644   meson_quote() {
2645     test $# = 0 && return
2646     echo "'$(echo $* | sed "s/ /','/g")'"
2647   }
2648
2649   echo "# Automatically generated by configure - do not modify" > $cross
2650   echo "[properties]" >> $cross
2651
2652   # unroll any custom device configs
2653   for a in $device_archs; do
2654       eval "c=\$devices_${a}"
2655       echo "${a}-softmmu = '$c'" >> $cross
2656   done
2657
2658   test -z "$cxx" && echo "link_language = 'c'" >> $cross
2659   echo "[built-in options]" >> $cross
2660   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2661   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2662   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2663   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2664   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2665   echo "[binaries]" >> $cross
2666   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2667   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2668   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2669   echo "ar = [$(meson_quote $ar)]" >> $cross
2670   echo "nm = [$(meson_quote $nm)]" >> $cross
2671   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
2672   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2673   if has $sdl2_config; then
2674     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2675   fi
2676   echo "strip = [$(meson_quote $strip)]" >> $cross
2677   echo "widl = [$(meson_quote $widl)]" >> $cross
2678   echo "windres = [$(meson_quote $windres)]" >> $cross
2679   if test "$cross_compile" = "yes"; then
2680     cross_arg="--cross-file config-meson.cross"
2681     echo "[host_machine]" >> $cross
2682     echo "system = '$targetos'" >> $cross
2683     case "$cpu" in
2684         i386)
2685             echo "cpu_family = 'x86'" >> $cross
2686             ;;
2687         *)
2688             echo "cpu_family = '$cpu'" >> $cross
2689             ;;
2690     esac
2691     echo "cpu = '$cpu'" >> $cross
2692     if test "$bigendian" = "yes" ; then
2693         echo "endian = 'big'" >> $cross
2694     else
2695         echo "endian = 'little'" >> $cross
2696     fi
2697   else
2698     cross_arg="--native-file config-meson.cross"
2699   fi
2700   mv $cross config-meson.cross
2701
2702   rm -rf meson-private meson-info meson-logs
2703
2704   # Built-in options
2705   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2706   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2707   test "$pie" = no && meson_option_add -Db_pie=false
2708   test "$werror" = yes && meson_option_add -Dwerror=true
2709
2710   # QEMU options
2711   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2712   test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2713   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2714   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2715   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2716   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2717   test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server"
2718   run_meson() {
2719     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2720   }
2721   eval run_meson $meson_options
2722   if test "$?" -ne 0 ; then
2723       error_exit "meson setup failed"
2724   fi
2725 else
2726   if test -f meson-private/cmd_line.txt; then
2727     # Adjust old command line options whose type was changed
2728     # Avoids having to use "setup --wipe" when Meson is upgraded
2729     perl -i -ne '
2730       s/^gettext = true$/gettext = auto/;
2731       s/^gettext = false$/gettext = disabled/;
2732       /^b_staticpic/ && next;
2733       print;' meson-private/cmd_line.txt
2734   fi
2735 fi
2736
2737 # Save the configure command line for later reuse.
2738 cat <<EOD >config.status
2739 #!/bin/sh
2740 # Generated by configure.
2741 # Run this file to recreate the current configuration.
2742 # Compiler output produced by configure, useful for debugging
2743 # configure, is in config.log if it exists.
2744 EOD
2745
2746 preserve_env() {
2747     envname=$1
2748
2749     eval envval=\$$envname
2750
2751     if test -n "$envval"
2752     then
2753         echo "$envname='$envval'" >> config.status
2754         echo "export $envname" >> config.status
2755     else
2756         echo "unset $envname" >> config.status
2757     fi
2758 }
2759
2760 # Preserve various env variables that influence what
2761 # features/build target configure will detect
2762 preserve_env AR
2763 preserve_env AS
2764 preserve_env CC
2765 preserve_env CFLAGS
2766 preserve_env CXX
2767 preserve_env CXXFLAGS
2768 preserve_env LD
2769 preserve_env LDFLAGS
2770 preserve_env LD_LIBRARY_PATH
2771 preserve_env MAKE
2772 preserve_env NM
2773 preserve_env OBJCFLAGS
2774 preserve_env OBJCOPY
2775 preserve_env PATH
2776 preserve_env PKG_CONFIG
2777 preserve_env PKG_CONFIG_LIBDIR
2778 preserve_env PKG_CONFIG_PATH
2779 preserve_env PYTHON
2780 preserve_env SDL2_CONFIG
2781 preserve_env SMBD
2782 preserve_env STRIP
2783 preserve_env WIDL
2784 preserve_env WINDRES
2785
2786 printf "exec" >>config.status
2787 for i in "$0" "$@"; do
2788   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2789 done
2790 echo ' "$@"' >>config.status
2791 chmod +x config.status
2792
2793 rm -r "$TMPDIR1"