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 if test "$default_feature" = no ; then
 323   slirp="disabled"
 324 else
 325   slirp="auto"
 326 fi
 327 fdt="auto"
 328
 329 # 2. Automatically enable/disable other options
 330 tcg="auto"
 331 cfi="false"
 332
 333 # parse CC options second
 334 for opt do
 335   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 336   case "$opt" in
 337   --cross-prefix=*) cross_prefix="$optarg"
 338                     cross_compile="yes"
 339   ;;
 340   --cc=*) CC="$optarg"
 341   ;;
 342   --cxx=*) CXX="$optarg"
 343   ;;
 344   --cpu=*) cpu="$optarg"
 345   ;;
 346   --extra-cflags=*)
 347     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 348     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 349     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 350     ;;
 351   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 352   ;;
 353   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 354   ;;
 355   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 356   ;;
 357   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 358   ;;
 359   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 360                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 361   ;;
 362   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 363                 eval "cross_cc_${cc_arch}=\$optarg"
 364   ;;
 365   --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
 366   ;;
 367   --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
 368                     eval "cross_prefix_${cc_arch}=\$optarg"
 369   ;;
 370   esac
 371 done
 372 # OS specific
 373 # Using uname is really, really broken.  Once we have the right set of checks
 374 # we can eliminate its usage altogether.
 375
 376 # Preferred compiler:
 377 #  ${CC} (if set)
 378 #  ${cross_prefix}gcc (if cross-prefix specified)
 379 #  system compiler
 380 if test -z "${CC}${cross_prefix}"; then
 381   cc="$host_cc"
 382 else
 383   cc="${CC-${cross_prefix}gcc}"
 384 fi
 385
 386 if test -z "${CXX}${cross_prefix}"; then
 387   cxx="c++"
 388 else
 389   cxx="${CXX-${cross_prefix}g++}"
 390 fi
 391
 392 ar="${AR-${cross_prefix}ar}"
 393 as="${AS-${cross_prefix}as}"
 394 ccas="${CCAS-$cc}"
 395 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 396 ld="${LD-${cross_prefix}ld}"
 397 ranlib="${RANLIB-${cross_prefix}ranlib}"
 398 nm="${NM-${cross_prefix}nm}"
 399 smbd="$SMBD"
 400 strip="${STRIP-${cross_prefix}strip}"
 401 widl="${WIDL-${cross_prefix}widl}"
 402 windres="${WINDRES-${cross_prefix}windres}"
 403 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 404 query_pkg_config() {
 405     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 406 }
 407 pkg_config=query_pkg_config
 408 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 409
 410 # default flags for all hosts
 411 # We use -fwrapv to tell the compiler that we require a C dialect where
 412 # left shift of signed integers is well defined and has the expected
 413 # 2s-complement style results. (Both clang and gcc agree that it
 414 # provides these semantics.)
 415 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 416 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 417 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 418 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 419
 420 QEMU_LDFLAGS=
 421
 422 # Flags that are needed during configure but later taken care of by Meson
 423 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 424 CONFIGURE_LDFLAGS=
 425
 426
 427 check_define() {
 428 cat > $TMPC <<EOF
 429 #if !defined($1)
 430 #error $1 not defined
 431 #endif
 432 int main(void) { return 0; }
 433 EOF
 434   compile_object
 435 }
 436
 437 check_include() {
 438 cat > $TMPC <<EOF
 439 #include <$1>
 440 int main(void) { return 0; }
 441 EOF
 442   compile_object
 443 }
 444
 445 write_c_skeleton() {
 446     cat > $TMPC <<EOF
 447 int main(void) { return 0; }
 448 EOF
 449 }
 450
 451 if check_define __linux__ ; then
 452   targetos=linux
 453 elif check_define _WIN32 ; then
 454   targetos=windows
 455 elif check_define __OpenBSD__ ; then
 456   targetos=openbsd
 457 elif check_define __sun__ ; then
 458   targetos=sunos
 459 elif check_define __HAIKU__ ; then
 460   targetos=haiku
 461 elif check_define __FreeBSD__ ; then
 462   targetos=freebsd
 463 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 464   targetos=gnu/kfreebsd
 465 elif check_define __DragonFly__ ; then
 466   targetos=dragonfly
 467 elif check_define __NetBSD__; then
 468   targetos=netbsd
 469 elif check_define __APPLE__; then
 470   targetos=darwin
 471 else
 472   # This is a fatal error, but don't report it yet, because we
 473   # might be going to just print the --help text, or it might
 474   # be the result of a missing compiler.
 475   targetos=bogus
 476 fi
 477
 478 # OS specific
 479
 480 mingw32="no"
 481 bsd="no"
 482 linux="no"
 483 solaris="no"
 484 case $targetos in
 485 windows)
 486   mingw32="yes"
 487   plugins="no"
 488   pie="no"
 489 ;;
 490 gnu/kfreebsd)
 491   bsd="yes"
 492 ;;
 493 freebsd)
 494   bsd="yes"
 495   make="${MAKE-gmake}"
 496   # needed for kinfo_getvmmap(3) in libutil.h
 497 ;;
 498 dragonfly)
 499   bsd="yes"
 500   make="${MAKE-gmake}"
 501 ;;
 502 netbsd)
 503   bsd="yes"
 504   make="${MAKE-gmake}"
 505 ;;
 506 openbsd)
 507   bsd="yes"
 508   make="${MAKE-gmake}"
 509 ;;
 510 darwin)
 511   bsd="yes"
 512   darwin="yes"
 513   # Disable attempts to use ObjectiveC features in os/object.h since they
 514   # won't work when we're compiling with gcc as a C compiler.
 515   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 516 ;;
 517 sunos)
 518   solaris="yes"
 519   make="${MAKE-gmake}"
 520 # needed for CMSG_ macros in sys/socket.h
 521   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 522 # needed for TIOCWIN* defines in termios.h
 523   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 524   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 525   # Note that this check is broken for cross-compilation: if you're
 526   # cross-compiling to one of these OSes then you'll need to specify
 527   # the correct CPU with the --cpu option.
 528   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 529     cpu="x86_64"
 530   fi
 531 ;;
 532 haiku)
 533   pie="no"
 534   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 535 ;;
 536 linux)
 537   linux="yes"
 538 ;;
 539 esac
 540
 541 if test ! -z "$cpu" ; then
 542   # command line argument
 543   :
 544 elif check_define __i386__ ; then
 545   cpu="i386"
 546 elif check_define __x86_64__ ; then
 547   if check_define __ILP32__ ; then
 548     cpu="x32"
 549   else
 550     cpu="x86_64"
 551   fi
 552 elif check_define __sparc__ ; then
 553   if check_define __arch64__ ; then
 554     cpu="sparc64"
 555   else
 556     cpu="sparc"
 557   fi
 558 elif check_define _ARCH_PPC ; then
 559   if check_define _ARCH_PPC64 ; then
 560     if check_define _LITTLE_ENDIAN ; then
 561       cpu="ppc64le"
 562     else
 563       cpu="ppc64"
 564     fi
 565   else
 566     cpu="ppc"
 567   fi
 568 elif check_define __mips__ ; then
 569   cpu="mips"
 570 elif check_define __s390__ ; then
 571   if check_define __s390x__ ; then
 572     cpu="s390x"
 573   else
 574     cpu="s390"
 575   fi
 576 elif check_define __riscv ; then
 577   cpu="riscv"
 578 elif check_define __arm__ ; then
 579   cpu="arm"
 580 elif check_define __aarch64__ ; then
 581   cpu="aarch64"
 582 elif check_define __loongarch64 ; then
 583   cpu="loongarch64"
 584 else
 585   cpu=$(uname -m)
 586 fi
 587
 588 # Normalise host CPU name, set multilib cflags
 589 # Note that this case should only have supported host CPUs, not guests.
 590 case "$cpu" in
 591   armv*b|armv*l|arm)
 592     cpu="arm" ;;
 593
 594   i386|i486|i586|i686|i86pc|BePC)
 595     cpu="i386"
 596     CPU_CFLAGS="-m32" ;;
 597   x32)
 598     cpu="x86_64"
 599     CPU_CFLAGS="-mx32" ;;
 600   x86_64|amd64)
 601     cpu="x86_64"
 602     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 603     # If we truly care, we should simply detect this case at
 604     # runtime and generate the fallback to serial emulation.
 605     CPU_CFLAGS="-m64 -mcx16" ;;
 606
 607   mips*)
 608     cpu="mips" ;;
 609
 610   ppc)
 611     CPU_CFLAGS="-m32" ;;
 612   ppc64)
 613     CPU_CFLAGS="-m64 -mbig-endian" ;;
 614   ppc64le)
 615     cpu="ppc64"
 616     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 617
 618   s390)
 619     CPU_CFLAGS="-m31" ;;
 620   s390x)
 621     CPU_CFLAGS="-m64" ;;
 622
 623   sparc|sun4[cdmuv])
 624     cpu="sparc"
 625     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 626   sparc64)
 627     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 628 esac
 629
 630 : ${make=${MAKE-make}}
 631
 632 # We prefer python 3.x. A bare 'python' is traditionally
 633 # python 2.x, but some distros have it as python 3.x, so
 634 # we check that too
 635 python=
 636 explicit_python=no
 637 for binary in "${PYTHON-python3}" python
 638 do
 639     if has "$binary"
 640     then
 641         python=$(command -v "$binary")
 642         break
 643     fi
 644 done
 645
 646
 647 # Check for ancillary tools used in testing
 648 genisoimage=
 649 for binary in genisoimage mkisofs
 650 do
 651     if has $binary
 652     then
 653         genisoimage=$(command -v "$binary")
 654         break
 655     fi
 656 done
 657
 658 # Default objcc to clang if available, otherwise use CC
 659 if has clang; then
 660   objcc=clang
 661 else
 662   objcc="$cc"
 663 fi
 664
 665 if test "$mingw32" = "yes" ; then
 666   EXESUF=".exe"
 667   # MinGW needs -mthreads for TLS and macro _MT.
 668   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 669   write_c_skeleton;
 670   prefix="/qemu"
 671   bindir=""
 672   qemu_suffix=""
 673 fi
 674
 675 werror=""
 676
 677 meson_option_build_array() {
 678   printf '['
 679   (if test "$targetos" = windows; then
 680     IFS=\;
 681   else
 682     IFS=:
 683   fi
 684   for e in $1; do
 685     printf '"""'
 686     # backslash escape any '\' and '"' characters
 687     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
 688     printf '""",'
 689   done)
 690   printf ']\n'
 691 }
 692
 693 . "$source_path/scripts/meson-buildoptions.sh"
 694
 695 meson_options=
 696 meson_option_add() {
 697   meson_options="$meson_options $(quote_sh "$1")"
 698 }
 699 meson_option_parse() {
 700   meson_options="$meson_options $(_meson_option_parse "$@")"
 701   if test $? -eq 1; then
 702     echo "ERROR: unknown option $1"
 703     echo "Try '$0 --help' for more information"
 704     exit 1
 705   fi
 706 }
 707
 708 for opt do
 709   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 710   case "$opt" in
 711   --help|-h) show_help=yes
 712   ;;
 713   --version|-V) exec cat "$source_path/VERSION"
 714   ;;
 715   --prefix=*) prefix="$optarg"
 716   ;;
 717   --cross-prefix=*)
 718   ;;
 719   --cc=*)
 720   ;;
 721   --host-cc=*) host_cc="$optarg"
 722   ;;
 723   --cxx=*)
 724   ;;
 725   --objcc=*) objcc="$optarg"
 726   ;;
 727   --make=*) make="$optarg"
 728   ;;
 729   --install=*)
 730   ;;
 731   --python=*) python="$optarg" ; explicit_python=yes
 732   ;;
 733   --skip-meson) skip_meson=yes
 734   ;;
 735   --meson=*) meson="$optarg"
 736   ;;
 737   --ninja=*) ninja="$optarg"
 738   ;;
 739   --smbd=*) smbd="$optarg"
 740   ;;
 741   --extra-cflags=*)
 742   ;;
 743   --extra-cxxflags=*)
 744   ;;
 745   --extra-objcflags=*)
 746   ;;
 747   --extra-ldflags=*)
 748   ;;
 749   --cross-cc-*)
 750   ;;
 751   --cross-prefix-*)
 752   ;;
 753   --enable-debug-info) meson_option_add -Ddebug=true
 754   ;;
 755   --disable-debug-info) meson_option_add -Ddebug=false
 756   ;;
 757   --enable-modules)
 758       modules="yes"
 759   ;;
 760   --disable-modules)
 761       modules="no"
 762   ;;
 763   --cpu=*)
 764   ;;
 765   --target-list=*) target_list="$optarg"
 766                    if test "$target_list_exclude"; then
 767                        error_exit "Can't mix --target-list with --target-list-exclude"
 768                    fi
 769   ;;
 770   --target-list-exclude=*) target_list_exclude="$optarg"
 771                    if test "$target_list"; then
 772                        error_exit "Can't mix --target-list-exclude with --target-list"
 773                    fi
 774   ;;
 775   --with-default-devices) meson_option_add -Ddefault_devices=true
 776   ;;
 777   --without-default-devices) meson_option_add -Ddefault_devices=false
 778   ;;
 779   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 780   ;;
 781   --with-devices-*) device_arch=${opt#--with-devices-};
 782                     device_arch=${device_arch%%=*}
 783                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 784                     if test -f "$cf"; then
 785                         device_archs="$device_archs $device_arch"
 786                         eval "devices_${device_arch}=\$optarg"
 787                     else
 788                         error_exit "File $cf does not exist"
 789                     fi
 790   ;;
 791   --without-default-features) # processed above
 792   ;;
 793   --static)
 794     static="yes"
 795     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 796   ;;
 797   --bindir=*) bindir="$optarg"
 798   ;;
 799   --with-suffix=*) qemu_suffix="$optarg"
 800   ;;
 801   --host=*|--build=*|\
 802   --disable-dependency-tracking|\
 803   --sbindir=*|--sharedstatedir=*|\
 804   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 805   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 806     # These switches are silently ignored, for compatibility with
 807     # autoconf-generated configure scripts. This allows QEMU's
 808     # configure to be used by RPM and similar macros that set
 809     # lots of directory switches by default.
 810   ;;
 811   --enable-debug-tcg) debug_tcg="yes"
 812   ;;
 813   --disable-debug-tcg) debug_tcg="no"
 814   ;;
 815   --enable-debug)
 816       # Enable debugging options that aren't excessively noisy
 817       debug_tcg="yes"
 818       meson_option_parse --enable-debug-mutex ""
 819       meson_option_add -Doptimization=0
 820       fortify_source="no"
 821   ;;
 822   --enable-sanitizers) sanitizers="yes"
 823   ;;
 824   --disable-sanitizers) sanitizers="no"
 825   ;;
 826   --enable-tsan) tsan="yes"
 827   ;;
 828   --disable-tsan) tsan="no"
 829   ;;
 830   --disable-slirp) slirp="disabled"
 831   ;;
 832   --enable-slirp) slirp="enabled"
 833   ;;
 834   --enable-slirp=git) slirp="internal"
 835   ;;
 836   --enable-slirp=*) slirp="$optarg"
 837   ;;
 838   --disable-tcg) tcg="disabled"
 839                  plugins="no"
 840   ;;
 841   --enable-tcg) tcg="enabled"
 842   ;;
 843   --disable-system) softmmu="no"
 844   ;;
 845   --enable-system) softmmu="yes"
 846   ;;
 847   --disable-user)
 848       linux_user="no" ;
 849       bsd_user="no" ;
 850   ;;
 851   --enable-user) ;;
 852   --disable-linux-user) linux_user="no"
 853   ;;
 854   --enable-linux-user) linux_user="yes"
 855   ;;
 856   --disable-bsd-user) bsd_user="no"
 857   ;;
 858   --enable-bsd-user) bsd_user="yes"
 859   ;;
 860   --enable-pie) pie="yes"
 861   ;;
 862   --disable-pie) pie="no"
 863   ;;
 864   --enable-werror) werror="yes"
 865   ;;
 866   --disable-werror) werror="no"
 867   ;;
 868   --enable-stack-protector) stack_protector="yes"
 869   ;;
 870   --disable-stack-protector) stack_protector="no"
 871   ;;
 872   --enable-safe-stack) safe_stack="yes"
 873   ;;
 874   --disable-safe-stack) safe_stack="no"
 875   ;;
 876   --enable-cfi)
 877       cfi="true";
 878       meson_option_add -Db_lto=true
 879   ;;
 880   --disable-cfi) cfi="false"
 881   ;;
 882   --disable-fdt) fdt="disabled"
 883   ;;
 884   --enable-fdt) fdt="enabled"
 885   ;;
 886   --enable-fdt=git) fdt="internal"
 887   ;;
 888   --enable-fdt=*) fdt="$optarg"
 889   ;;
 890   --with-coroutine=*) coroutine="$optarg"
 891   ;;
 892   --disable-zlib-test)
 893   ;;
 894   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
 895       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
 896   ;;
 897   --enable-vhdx|--disable-vhdx)
 898       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
 899   ;;
 900   --enable-uuid|--disable-uuid)
 901       echo "$0: $opt is obsolete, UUID support is always built" >&2
 902   ;;
 903   --with-git=*) git="$optarg"
 904   ;;
 905   --with-git-submodules=*)
 906       git_submodules_action="$optarg"
 907   ;;
 908   --enable-plugins) if test "$mingw32" = "yes"; then
 909                         error_exit "TCG plugins not currently supported on Windows platforms"
 910                     else
 911                         plugins="yes"
 912                     fi
 913   ;;
 914   --disable-plugins) plugins="no"
 915   ;;
 916   --enable-containers) use_containers="yes"
 917   ;;
 918   --disable-containers) use_containers="no"
 919   ;;
 920   --gdb=*) gdb_bin="$optarg"
 921   ;;
 922   # backwards compatibility options
 923   --enable-trace-backend=*) meson_option_parse "--enable-trace-backends=$optarg" "$optarg"
 924   ;;
 925   --disable-blobs) meson_option_parse --disable-install-blobs ""
 926   ;;
 927   --enable-vfio-user-server) vfio_user_server="enabled"
 928   ;;
 929   --disable-vfio-user-server) vfio_user_server="disabled"
 930   ;;
 931   --enable-tcmalloc) meson_option_parse --enable-malloc=tcmalloc tcmalloc
 932   ;;
 933   --enable-jemalloc) meson_option_parse --enable-malloc=jemalloc jemalloc
 934   ;;
 935   # everything else has the same name in configure and meson
 936   --*) meson_option_parse "$opt" "$optarg"
 937   ;;
 938   esac
 939 done
 940
 941 # test for any invalid configuration combinations
 942 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
 943     error_exit "Can't enable plugins on non-TCG builds"
 944 fi
 945
 946 case $git_submodules_action in
 947     update|validate)
 948         if test ! -e "$source_path/.git"; then
 949             echo "ERROR: cannot $git_submodules_action git submodules without .git"
 950             exit 1
 951         fi
 952     ;;
 953     ignore)
 954         if ! test -f "$source_path/ui/keycodemapdb/README"
 955         then
 956             echo
 957             echo "ERROR: missing GIT submodules"
 958             echo
 959             if test -e "$source_path/.git"; then
 960                 echo "--with-git-submodules=ignore specified but submodules were not"
 961                 echo "checked out.  Please initialize and update submodules."
 962             else
 963                 echo "This is not a GIT checkout but module content appears to"
 964                 echo "be missing. Do not use 'git archive' or GitHub download links"
 965                 echo "to acquire QEMU source archives. Non-GIT builds are only"
 966                 echo "supported with source archives linked from:"
 967                 echo
 968                 echo "  https://www.qemu.org/download/#source"
 969                 echo
 970                 echo "Developers working with GIT can use scripts/archive-source.sh"
 971                 echo "if they need to create valid source archives."
 972             fi
 973             echo
 974             exit 1
 975         fi
 976     ;;
 977     *)
 978         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
 979         exit 1
 980     ;;
 981 esac
 982
 983 default_target_list=""
 984 mak_wilds=""
 985
 986 if [ "$linux_user" != no ]; then
 987     if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then
 988         linux_user=yes
 989     elif [ "$linux_user" = yes ]; then
 990         error_exit "linux-user not supported on this architecture"
 991     fi
 992 fi
 993 if [ "$bsd_user" != no ]; then
 994     if [ "$bsd_user" = "" ]; then
 995         test $targetos = freebsd && bsd_user=yes
 996     fi
 997     if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
 998         error_exit "bsd-user not supported on this host OS"
 999     fi
1000 fi
1001 if [ "$softmmu" = "yes" ]; then
1002     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
1003 fi
1004 if [ "$linux_user" = "yes" ]; then
1005     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
1006 fi
1007 if [ "$bsd_user" = "yes" ]; then
1008     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
1009 fi
1010
1011 for config in $mak_wilds; do
1012     target="$(basename "$config" .mak)"
1013     if echo "$target_list_exclude" | grep -vq "$target"; then
1014         default_target_list="${default_target_list} $target"
1015     fi
1016 done
1017
1018 if test x"$show_help" = x"yes" ; then
1019 cat << EOF
1020
1021 Usage: configure [options]
1022 Options: [defaults in brackets after descriptions]
1023
1024 Standard options:
1025   --help                   print this message
1026   --prefix=PREFIX          install in PREFIX [$prefix]
1027   --target-list=LIST       set target list (default: build all)
1028 $(echo Available targets: $default_target_list | \
1029   fold -s -w 53 | sed -e 's/^/                           /')
1030   --target-list-exclude=LIST exclude a set of targets from the default target-list
1031
1032 Advanced options (experts only):
1033   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1034   --cc=CC                  use C compiler CC [$cc]
1035   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1036                            build time
1037   --cxx=CXX                use C++ compiler CXX [$cxx]
1038   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1039   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
1040   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
1041   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
1042   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1043   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1044   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
1045   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
1046   --make=MAKE              use specified make [$make]
1047   --python=PYTHON          use specified python [$python]
1048   --meson=MESON            use specified meson [$meson]
1049   --ninja=NINJA            use specified ninja [$ninja]
1050   --smbd=SMBD              use specified smbd [$smbd]
1051   --with-git=GIT           use specified git [$git]
1052   --with-git-submodules=update   update git submodules (default if .git dir exists)
1053   --with-git-submodules=validate fail if git submodules are not up to date
1054   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1055   --static                 enable static build [$static]
1056   --bindir=PATH            install binaries in PATH
1057   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1058   --without-default-features default all --enable-* options to "disabled"
1059   --without-default-devices  do not include any device that is not needed to
1060                            start the emulator (only use if you are including
1061                            desired devices in configs/devices/)
1062   --with-devices-ARCH=NAME override default configs/devices
1063   --enable-debug           enable common debug build options
1064   --enable-sanitizers      enable default sanitizers
1065   --enable-tsan            enable thread sanitizer
1066   --disable-werror         disable compilation abort on warning
1067   --disable-stack-protector disable compiler-provided stack protection
1068   --cpu=CPU                Build for host CPU [$cpu]
1069   --with-coroutine=BACKEND coroutine backend. Supported options:
1070                            ucontext, sigaltstack, windows
1071   --enable-plugins
1072                            enable plugins via shared library loading
1073   --disable-containers     don't use containers for cross-building
1074   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1075 EOF
1076   meson_options_help
1077 cat << EOF
1078   system          all system emulation targets
1079   user            supported user emulation targets
1080   linux-user      all linux usermode emulation targets
1081   bsd-user        all BSD usermode emulation targets
1082   pie             Position Independent Executables
1083   modules         modules support (non-Windows)
1084   debug-tcg       TCG debugging (default is disabled)
1085   debug-info      debugging information
1086   safe-stack      SafeStack Stack Smash Protection. Depends on
1087                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1088
1089 NOTE: The object files are built at the place where configure is launched
1090 EOF
1091 exit 0
1092 fi
1093
1094 # Remove old dependency files to make sure that they get properly regenerated
1095 rm -f ./*/config-devices.mak.d
1096
1097 if test -z "$python"
1098 then
1099     error_exit "Python not found. Use --python=/path/to/python"
1100 fi
1101 if ! has "$make"
1102 then
1103     error_exit "GNU make ($make) not found"
1104 fi
1105
1106 # Note that if the Python conditional here evaluates True we will exit
1107 # with status 1 which is a shell 'false' value.
1108 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1109   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1110       "Use --python=/path/to/python to specify a supported Python."
1111 fi
1112
1113 # Suppress writing compiled files
1114 python="$python -B"
1115
1116 if test -z "$meson"; then
1117     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.59.3; then
1118         meson=meson
1119     elif test "$git_submodules_action" != 'ignore' ; then
1120         meson=git
1121     elif test -e "${source_path}/meson/meson.py" ; then
1122         meson=internal
1123     else
1124         if test "$explicit_python" = yes; then
1125             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1126         else
1127             error_exit "Meson not found.  Use --meson=/path/to/meson"
1128         fi
1129     fi
1130 else
1131     # Meson uses its own Python interpreter to invoke other Python scripts,
1132     # but the user wants to use the one they specified with --python.
1133     #
1134     # We do not want to override the distro Python interpreter (and sometimes
1135     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1136     # just require --meson=git|internal together with --python.
1137     if test "$explicit_python" = yes; then
1138         case "$meson" in
1139             git | internal) ;;
1140             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1141         esac
1142     fi
1143 fi
1144
1145 if test "$meson" = git; then
1146     git_submodules="${git_submodules} meson"
1147 fi
1148
1149 case "$meson" in
1150     git | internal)
1151         meson="$python ${source_path}/meson/meson.py"
1152         ;;
1153     *) meson=$(command -v "$meson") ;;
1154 esac
1155
1156 # Probe for ninja
1157
1158 if test -z "$ninja"; then
1159     for c in ninja ninja-build samu; do
1160         if has $c; then
1161             ninja=$(command -v "$c")
1162             break
1163         fi
1164     done
1165     if test -z "$ninja"; then
1166       error_exit "Cannot find Ninja"
1167     fi
1168 fi
1169
1170 # Check that the C compiler works. Doing this here before testing
1171 # the host CPU ensures that we had a valid CC to autodetect the
1172 # $cpu var (and we should bail right here if that's not the case).
1173 # It also allows the help message to be printed without a CC.
1174 write_c_skeleton;
1175 if compile_object ; then
1176   : C compiler works ok
1177 else
1178     error_exit "\"$cc\" either does not exist or does not work"
1179 fi
1180 if ! compile_prog ; then
1181     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1182 fi
1183
1184 # Consult white-list to determine whether to enable werror
1185 # by default.  Only enable by default for git builds
1186 if test -z "$werror" ; then
1187     if test "$git_submodules_action" != "ignore" && \
1188         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1189         werror="yes"
1190     else
1191         werror="no"
1192     fi
1193 fi
1194
1195 if test "$targetos" = "bogus"; then
1196     # Now that we know that we're not printing the help and that
1197     # the compiler works (so the results of the check_defines we used
1198     # to identify the OS are reliable), if we didn't recognize the
1199     # host OS we should stop now.
1200     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1201 fi
1202
1203 # Check whether the compiler matches our minimum requirements:
1204 cat > $TMPC << EOF
1205 #if defined(__clang_major__) && defined(__clang_minor__)
1206 # ifdef __apple_build_version__
1207 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1208 #   error You need at least XCode Clang v10.0 to compile QEMU
1209 #  endif
1210 # else
1211 #  if __clang_major__ < 6 || (__clang_major__ == 6 && __clang_minor__ < 0)
1212 #   error You need at least Clang v6.0 to compile QEMU
1213 #  endif
1214 # endif
1215 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1216 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1217 #  error You need at least GCC v7.4.0 to compile QEMU
1218 # endif
1219 #else
1220 # error You either need GCC or Clang to compiler QEMU
1221 #endif
1222 int main (void) { return 0; }
1223 EOF
1224 if ! compile_prog "" "" ; then
1225     error_exit "You need at least GCC v7.4 or Clang v6.0 (or XCode Clang v10.0)"
1226 fi
1227
1228 # Accumulate -Wfoo and -Wno-bar separately.
1229 # We will list all of the enable flags first, and the disable flags second.
1230 # Note that we do not add -Werror, because that would enable it for all
1231 # configure tests. If a configure test failed due to -Werror this would
1232 # just silently disable some features, so it's too error prone.
1233
1234 warn_flags=
1235 add_to warn_flags -Wold-style-declaration
1236 add_to warn_flags -Wold-style-definition
1237 add_to warn_flags -Wtype-limits
1238 add_to warn_flags -Wformat-security
1239 add_to warn_flags -Wformat-y2k
1240 add_to warn_flags -Winit-self
1241 add_to warn_flags -Wignored-qualifiers
1242 add_to warn_flags -Wempty-body
1243 add_to warn_flags -Wnested-externs
1244 add_to warn_flags -Wendif-labels
1245 add_to warn_flags -Wexpansion-to-defined
1246 add_to warn_flags -Wimplicit-fallthrough=2
1247
1248 nowarn_flags=
1249 add_to nowarn_flags -Wno-initializer-overrides
1250 add_to nowarn_flags -Wno-missing-include-dirs
1251 add_to nowarn_flags -Wno-shift-negative-value
1252 add_to nowarn_flags -Wno-string-plus-int
1253 add_to nowarn_flags -Wno-typedef-redefinition
1254 add_to nowarn_flags -Wno-tautological-type-limit-compare
1255 add_to nowarn_flags -Wno-psabi
1256
1257 gcc_flags="$warn_flags $nowarn_flags"
1258
1259 cc_has_warning_flag() {
1260     write_c_skeleton;
1261
1262     # Use the positive sense of the flag when testing for -Wno-wombat
1263     # support (gcc will happily accept the -Wno- form of unknown
1264     # warning options).
1265     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1266     compile_prog "-Werror $optflag" ""
1267 }
1268
1269 objcc_has_warning_flag() {
1270     cat > $TMPM <<EOF
1271 int main(void) { return 0; }
1272 EOF
1273
1274     # Use the positive sense of the flag when testing for -Wno-wombat
1275     # support (gcc will happily accept the -Wno- form of unknown
1276     # warning options).
1277     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1278     do_objc -Werror $optflag \
1279       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1280       -o $TMPE $TMPM $QEMU_LDFLAGS
1281 }
1282
1283 for flag in $gcc_flags; do
1284     if cc_has_warning_flag $flag ; then
1285         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1286     fi
1287     if objcc_has_warning_flag $flag ; then
1288         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1289     fi
1290 done
1291
1292 if test "$stack_protector" != "no"; then
1293   cat > $TMPC << EOF
1294 int main(int argc, char *argv[])
1295 {
1296     char arr[64], *p = arr, *c = argv[0];
1297     while (*c) {
1298         *p++ = *c++;
1299     }
1300     return 0;
1301 }
1302 EOF
1303   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1304   sp_on=0
1305   for flag in $gcc_flags; do
1306     # We need to check both a compile and a link, since some compiler
1307     # setups fail only on a .c->.o compile and some only at link time
1308     if compile_object "-Werror $flag" &&
1309        compile_prog "-Werror $flag" ""; then
1310       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1311       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1312       sp_on=1
1313       break
1314     fi
1315   done
1316   if test "$stack_protector" = yes; then
1317     if test $sp_on = 0; then
1318       error_exit "Stack protector not supported"
1319     fi
1320   fi
1321 fi
1322
1323 # Disable -Wmissing-braces on older compilers that warn even for
1324 # the "universal" C zero initializer {0}.
1325 cat > $TMPC << EOF
1326 struct {
1327   int a[2];
1328 } x = {0};
1329 EOF
1330 if compile_object "-Werror" "" ; then
1331   :
1332 else
1333   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
1334 fi
1335
1336 # Our module code doesn't support Windows
1337 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1338   error_exit "Modules are not available for Windows"
1339 fi
1340
1341 # Static linking is not possible with plugins, modules or PIE
1342 if test "$static" = "yes" ; then
1343   if test "$modules" = "yes" ; then
1344     error_exit "static and modules are mutually incompatible"
1345   fi
1346   if test "$plugins" = "yes"; then
1347     error_exit "static and plugins are mutually incompatible"
1348   else
1349     plugins="no"
1350   fi
1351 fi
1352 test "$plugins" = "" && plugins=yes
1353
1354 cat > $TMPC << EOF
1355
1356 #ifdef __linux__
1357 #  define THREAD __thread
1358 #else
1359 #  define THREAD
1360 #endif
1361 static THREAD int tls_var;
1362 int main(void) { return tls_var; }
1363 EOF
1364
1365 if test "$static" = "yes"; then
1366   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1367     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1368     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
1369     pie="yes"
1370   elif test "$pie" = "yes"; then
1371     error_exit "-static-pie not available due to missing toolchain support"
1372   else
1373     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
1374     pie="no"
1375   fi
1376 elif test "$pie" = "no"; then
1377   if compile_prog "-Werror -fno-pie" "-no-pie"; then
1378     CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS"
1379     CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS"
1380     # Meson currently only handles pie as a boolean for now so if we have
1381     # explicitly disabled PIE we need to extend our cflags because it wont.
1382     QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1383   fi
1384 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1385   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1386   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1387   pie="yes"
1388 elif test "$pie" = "yes"; then
1389   error_exit "PIE not available due to missing toolchain support"
1390 else
1391   echo "Disabling PIE due to missing toolchain support"
1392   pie="no"
1393 fi
1394
1395 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
1396 # The combination is known as "full relro", because .got.plt is read-only too.
1397 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
1398   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
1399 fi
1400
1401 ##########################################
1402 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1403 # use i686 as default anyway, but for those that don't, an explicit
1404 # specification is necessary
1405
1406 if test "$cpu" = "i386"; then
1407   cat > $TMPC << EOF
1408 static int sfaa(int *ptr)
1409 {
1410   return __sync_fetch_and_and(ptr, 0);
1411 }
1412
1413 int main(void)
1414 {
1415   int val = 42;
1416   val = __sync_val_compare_and_swap(&val, 0, 1);
1417   sfaa(&val);
1418   return val;
1419 }
1420 EOF
1421   if ! compile_prog "" "" ; then
1422     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1423   fi
1424 fi
1425
1426 if test -z "${target_list+xxx}" ; then
1427     default_targets=yes
1428     for target in $default_target_list; do
1429         target_list="$target_list $target"
1430     done
1431     target_list="${target_list# }"
1432 else
1433     default_targets=no
1434     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1435     for target in $target_list; do
1436         # Check that we recognised the target name; this allows a more
1437         # friendly error message than if we let it fall through.
1438         case " $default_target_list " in
1439             *" $target "*)
1440                 ;;
1441             *)
1442                 error_exit "Unknown target name '$target'"
1443                 ;;
1444         esac
1445     done
1446 fi
1447
1448 # see if system emulation was really requested
1449 case " $target_list " in
1450   *"-softmmu "*) softmmu=yes
1451   ;;
1452   *) softmmu=no
1453   ;;
1454 esac
1455
1456 if test "$tcg" = "auto"; then
1457   if test -z "$target_list"; then
1458     tcg="disabled"
1459   else
1460     tcg="enabled"
1461   fi
1462 fi
1463
1464 if test "$tcg" = "enabled"; then
1465     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1466     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1467 fi
1468
1469 # ---
1470 # big/little endian test
1471 cat > $TMPC << EOF
1472 #include <stdio.h>
1473 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
1474 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
1475 int main(int argc, char *argv[])
1476 {
1477     return printf("%s %s\n", (char *)big_endian, (char *)little_endian);
1478 }
1479 EOF
1480
1481 if compile_prog ; then
1482     if strings -a $TMPE | grep -q BiGeNdIaN ; then
1483         bigendian="yes"
1484     elif strings -a $TMPE | grep -q LiTtLeEnDiAn ; then
1485         bigendian="no"
1486     else
1487         echo big/little test failed
1488         exit 1
1489     fi
1490 else
1491     echo big/little test failed
1492     exit 1
1493 fi
1494
1495 ##########################################
1496 # pkg-config probe
1497
1498 if ! has "$pkg_config_exe"; then
1499   error_exit "pkg-config binary '$pkg_config_exe' not found"
1500 fi
1501
1502 ##########################################
1503 # glib support probe
1504
1505 # When bumping glib_req_ver, please check also whether we should increase
1506 # the _WIN32_WINNT setting in osdep.h according to the value from glib
1507 glib_req_ver=2.56
1508 glib_modules=gthread-2.0
1509 if test "$modules" = yes; then
1510     glib_modules="$glib_modules gmodule-export-2.0"
1511 elif test "$plugins" = "yes"; then
1512     glib_modules="$glib_modules gmodule-no-export-2.0"
1513 fi
1514
1515 for i in $glib_modules; do
1516     if $pkg_config --atleast-version=$glib_req_ver $i; then
1517         glib_cflags=$($pkg_config --cflags $i)
1518         glib_libs=$($pkg_config --libs $i)
1519     else
1520         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
1521     fi
1522 done
1523
1524 glib_bindir="$($pkg_config --variable=bindir glib-2.0)"
1525 if test -z "$glib_bindir" ; then
1526         glib_bindir="$($pkg_config --variable=prefix glib-2.0)"/bin
1527 fi
1528
1529 # This workaround is required due to a bug in pkg-config file for glib as it
1530 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
1531
1532 if test "$static" = yes && test "$mingw32" = yes; then
1533     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
1534 fi
1535
1536 # Sanity check that the current size_t matches the
1537 # size that glib thinks it should be. This catches
1538 # problems on multi-arch where people try to build
1539 # 32-bit QEMU while pointing at 64-bit glib headers
1540 cat > $TMPC <<EOF
1541 #include <glib.h>
1542 #include <unistd.h>
1543
1544 #define QEMU_BUILD_BUG_ON(x) \
1545   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
1546
1547 int main(void) {
1548    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
1549    return 0;
1550 }
1551 EOF
1552
1553 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
1554     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
1555                "You probably need to set PKG_CONFIG_LIBDIR"\
1556                "to point to the right pkg-config files for your"\
1557                "build target"
1558 fi
1559
1560 # Silence clang warnings triggered by glib < 2.57.2
1561 cat > $TMPC << EOF
1562 #include <glib.h>
1563 typedef struct Foo {
1564     int i;
1565 } Foo;
1566 static void foo_free(Foo *f)
1567 {
1568     g_free(f);
1569 }
1570 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
1571 int main(void) { return 0; }
1572 EOF
1573 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
1574     if cc_has_warning_flag "-Wno-unused-function"; then
1575         glib_cflags="$glib_cflags -Wno-unused-function"
1576         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
1577     fi
1578 fi
1579
1580 ##########################################
1581 # fdt probe
1582
1583 case "$fdt" in
1584   auto | enabled | internal)
1585     # Simpler to always update submodule, even if not needed.
1586     git_submodules="${git_submodules} dtc"
1587     ;;
1588 esac
1589
1590 ##########################################
1591 # check and set a backend for coroutine
1592
1593 # We prefer ucontext, but it's not always possible. The fallback
1594 # is sigcontext. On Windows the only valid backend is the Windows
1595 # specific one.
1596
1597 ucontext_works=no
1598 if test "$darwin" != "yes"; then
1599   cat > $TMPC << EOF
1600 #include <ucontext.h>
1601 #ifdef __stub_makecontext
1602 #error Ignoring glibc stub makecontext which will always fail
1603 #endif
1604 int main(void) { makecontext(0, 0, 0); return 0; }
1605 EOF
1606   if compile_prog "" "" ; then
1607     ucontext_works=yes
1608   fi
1609 fi
1610
1611 if test "$coroutine" = ""; then
1612   if test "$mingw32" = "yes"; then
1613     coroutine=win32
1614   elif test "$ucontext_works" = "yes"; then
1615     coroutine=ucontext
1616   else
1617     coroutine=sigaltstack
1618   fi
1619 else
1620   case $coroutine in
1621   windows)
1622     if test "$mingw32" != "yes"; then
1623       error_exit "'windows' coroutine backend only valid for Windows"
1624     fi
1625     # Unfortunately the user visible backend name doesn't match the
1626     # coroutine-*.c filename for this case, so we have to adjust it here.
1627     coroutine=win32
1628     ;;
1629   ucontext)
1630     if test "$ucontext_works" != "yes"; then
1631       error_exit "'ucontext' backend requested but makecontext not available"
1632     fi
1633     ;;
1634   sigaltstack)
1635     if test "$mingw32" = "yes"; then
1636       error_exit "only the 'windows' coroutine backend is valid for Windows"
1637     fi
1638     ;;
1639   *)
1640     error_exit "unknown coroutine backend $coroutine"
1641     ;;
1642   esac
1643 fi
1644
1645 ##################################################
1646 # SafeStack
1647
1648
1649 if test "$safe_stack" = "yes"; then
1650 cat > $TMPC << EOF
1651 int main(int argc, char *argv[])
1652 {
1653 #if ! __has_feature(safe_stack)
1654 #error SafeStack Disabled
1655 #endif
1656     return 0;
1657 }
1658 EOF
1659   flag="-fsanitize=safe-stack"
1660   # Check that safe-stack is supported and enabled.
1661   if compile_prog "-Werror $flag" "$flag"; then
1662     # Flag needed both at compilation and at linking
1663     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1664     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1665   else
1666     error_exit "SafeStack not supported by your compiler"
1667   fi
1668   if test "$coroutine" != "ucontext"; then
1669     error_exit "SafeStack is only supported by the coroutine backend ucontext"
1670   fi
1671 else
1672 cat > $TMPC << EOF
1673 int main(int argc, char *argv[])
1674 {
1675 #if defined(__has_feature)
1676 #if __has_feature(safe_stack)
1677 #error SafeStack Enabled
1678 #endif
1679 #endif
1680     return 0;
1681 }
1682 EOF
1683 if test "$safe_stack" = "no"; then
1684   # Make sure that safe-stack is disabled
1685   if ! compile_prog "-Werror" ""; then
1686     # SafeStack was already enabled, try to explicitly remove the feature
1687     flag="-fno-sanitize=safe-stack"
1688     if ! compile_prog "-Werror $flag" "$flag"; then
1689       error_exit "Configure cannot disable SafeStack"
1690     fi
1691     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1692     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1693   fi
1694 else # "$safe_stack" = ""
1695   # Set safe_stack to yes or no based on pre-existing flags
1696   if compile_prog "-Werror" ""; then
1697     safe_stack="no"
1698   else
1699     safe_stack="yes"
1700     if test "$coroutine" != "ucontext"; then
1701       error_exit "SafeStack is only supported by the coroutine backend ucontext"
1702     fi
1703   fi
1704 fi
1705 fi
1706
1707 ########################################
1708 # check if ccache is interfering with
1709 # semantic analysis of macros
1710
1711 unset CCACHE_CPP2
1712 ccache_cpp2=no
1713 cat > $TMPC << EOF
1714 static const int Z = 1;
1715 #define fn() ({ Z; })
1716 #define TAUT(X) ((X) == Z)
1717 #define PAREN(X, Y) (X == Y)
1718 #define ID(X) (X)
1719 int main(int argc, char *argv[])
1720 {
1721     int x = 0, y = 0;
1722     x = ID(x);
1723     x = fn();
1724     fn();
1725     if (PAREN(x, y)) return 0;
1726     if (TAUT(Z)) return 0;
1727     return 0;
1728 }
1729 EOF
1730
1731 if ! compile_object "-Werror"; then
1732     ccache_cpp2=yes
1733 fi
1734
1735 #################################################
1736 # clang does not support glibc + FORTIFY_SOURCE.
1737
1738 if test "$fortify_source" != "no"; then
1739   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
1740     fortify_source="no";
1741   elif test -n "$cxx" && has $cxx &&
1742        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
1743     fortify_source="no";
1744   else
1745     fortify_source="yes"
1746   fi
1747 fi
1748
1749 ##########################################
1750 # checks for sanitizers
1751
1752 have_asan=no
1753 have_ubsan=no
1754 have_asan_iface_h=no
1755 have_asan_iface_fiber=no
1756
1757 if test "$sanitizers" = "yes" ; then
1758   write_c_skeleton
1759   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
1760       have_asan=yes
1761   fi
1762
1763   # we could use a simple skeleton for flags checks, but this also
1764   # detect the static linking issue of ubsan, see also:
1765   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
1766   cat > $TMPC << EOF
1767 #include <stdlib.h>
1768 int main(void) {
1769     void *tmp = malloc(10);
1770     if (tmp != NULL) {
1771         return *(int *)(tmp + 2);
1772     }
1773     return 1;
1774 }
1775 EOF
1776   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
1777       have_ubsan=yes
1778   fi
1779
1780   if check_include "sanitizer/asan_interface.h" ; then
1781       have_asan_iface_h=yes
1782   fi
1783
1784   cat > $TMPC << EOF
1785 #include <sanitizer/asan_interface.h>
1786 int main(void) {
1787   __sanitizer_start_switch_fiber(0, 0, 0);
1788   return 0;
1789 }
1790 EOF
1791   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
1792       have_asan_iface_fiber=yes
1793   fi
1794 fi
1795
1796 # Thread sanitizer is, for now, much noisier than the other sanitizers;
1797 # keep it separate until that is not the case.
1798 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
1799   error_exit "TSAN is not supported with other sanitiziers."
1800 fi
1801 have_tsan=no
1802 have_tsan_iface_fiber=no
1803 if test "$tsan" = "yes" ; then
1804   write_c_skeleton
1805   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1806       have_tsan=yes
1807   fi
1808   cat > $TMPC << EOF
1809 #include <sanitizer/tsan_interface.h>
1810 int main(void) {
1811   __tsan_create_fiber(0);
1812   return 0;
1813 }
1814 EOF
1815   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1816       have_tsan_iface_fiber=yes
1817   fi
1818 fi
1819
1820 ##########################################
1821 # check for slirp
1822
1823 case "$slirp" in
1824   auto | enabled | internal)
1825     # Simpler to always update submodule, even if not needed.
1826     git_submodules="${git_submodules} slirp"
1827     ;;
1828 esac
1829
1830 ##########################################
1831 # functions to probe cross compilers
1832
1833 container="no"
1834 if test $use_containers = "yes"; then
1835     if has "docker" || has "podman"; then
1836         container=$($python "$source_path"/tests/docker/docker.py probe)
1837     fi
1838 fi
1839
1840 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1841 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1842 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1843 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1844 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1845 : ${cross_prefix_armeb="$cross_prefix_arm"}
1846 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1847 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1848 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1849 : ${cross_prefix_i386="i686-linux-gnu-"}
1850 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1851 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1852 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1853 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1854 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1855 : ${cross_prefix_mips="mips-linux-gnu-"}
1856 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1857 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1858 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1859 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1860 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1861 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1862 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1863 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1864 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1865 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1866
1867 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1868 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1869 : ${cross_cc_armeb="$cross_cc_arm"}
1870 : ${cross_cc_cflags_armeb="-mbig-endian"}
1871 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1872 : ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
1873 : ${cross_cc_cflags_i386="-m32"}
1874 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1875 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1876 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1877 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1878 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1879 : ${cross_cc_sparc="$cross_cc_sparc64"}
1880 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1881 : ${cross_cc_cflags_x86_64="-m64"}
1882
1883 compute_target_variable() {
1884   eval "$2="
1885   if eval test -n "\"\${cross_prefix_$1}\""; then
1886     if eval has "\"\${cross_prefix_$1}\$3\""; then
1887       eval "$2=\"\${cross_prefix_$1}\$3\""
1888     fi
1889   fi
1890 }
1891
1892 # probe_target_compiler TARGET
1893 #
1894 # Look for a compiler for the given target, either native or cross.
1895 # Set variables target_* if a compiler is found, and container_cross_*
1896 # if a Docker-based cross-compiler image is known for the target.
1897 # Set got_cross_cc to yes/no depending on whether a non-container-based
1898 # compiler was found.
1899 #
1900 # If TARGET is a user-mode emulation target, also set build_static to
1901 # "y" if static linking is possible.
1902 #
1903 probe_target_compiler() {
1904   # reset all output variables
1905   got_cross_cc=no
1906   container_image=
1907   container_hosts=
1908   container_cross_cc=
1909   container_cross_ar=
1910   container_cross_as=
1911   container_cross_ld=
1912   container_cross_nm=
1913   container_cross_objcopy=
1914   container_cross_ranlib=
1915   container_cross_strip=
1916
1917   target_arch=${1%%-*}
1918   case $target_arch in
1919     aarch64) container_hosts="x86_64 aarch64" ;;
1920     alpha) container_hosts=x86_64 ;;
1921     arm) container_hosts="x86_64 aarch64" ;;
1922     cris) container_hosts=x86_64 ;;
1923     hexagon) container_hosts=x86_64 ;;
1924     hppa) container_hosts=x86_64 ;;
1925     i386) container_hosts=x86_64 ;;
1926     loongarch64) container_hosts=x86_64 ;;
1927     m68k) container_hosts=x86_64 ;;
1928     microblaze) container_hosts=x86_64 ;;
1929     mips64el) container_hosts=x86_64 ;;
1930     mips64) container_hosts=x86_64 ;;
1931     mipsel) container_hosts=x86_64 ;;
1932     mips) container_hosts=x86_64 ;;
1933     nios2) container_hosts=x86_64 ;;
1934     ppc) container_hosts=x86_64 ;;
1935     ppc64|ppc64le) container_hosts=x86_64 ;;
1936     riscv64) container_hosts=x86_64 ;;
1937     s390x) container_hosts=x86_64 ;;
1938     sh4) container_hosts=x86_64 ;;
1939     sparc64) container_hosts=x86_64 ;;
1940     tricore) container_hosts=x86_64 ;;
1941     x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1942     xtensa*) container_hosts=x86_64 ;;
1943   esac
1944
1945   for host in $container_hosts; do
1946     test "$container" != no || continue
1947     test "$host" = "$cpu" || continue
1948     case $target_arch in
1949       aarch64)
1950         # We don't have any bigendian build tools so we only use this for AArch64
1951         container_image=debian-arm64-cross
1952         container_cross_prefix=aarch64-linux-gnu-
1953         container_cross_cc=${container_cross_prefix}gcc-10
1954         ;;
1955       alpha)
1956         container_image=debian-alpha-cross
1957         container_cross_prefix=alpha-linux-gnu-
1958         ;;
1959       arm)
1960         # We don't have any bigendian build tools so we only use this for ARM
1961         container_image=debian-armhf-cross
1962         container_cross_prefix=arm-linux-gnueabihf-
1963         ;;
1964       cris)
1965         container_image=fedora-cris-cross
1966         container_cross_prefix=cris-linux-gnu-
1967         ;;
1968       hexagon)
1969         container_image=debian-hexagon-cross
1970         container_cross_prefix=hexagon-unknown-linux-musl-
1971         container_cross_cc=${container_cross_prefix}clang
1972         ;;
1973       hppa)
1974         container_image=debian-hppa-cross
1975         container_cross_prefix=hppa-linux-gnu-
1976         ;;
1977       i386)
1978         container_image=fedora-i386-cross
1979         container_cross_prefix=
1980         ;;
1981       loongarch64)
1982         container_image=debian-loongarch-cross
1983         container_cross_prefix=loongarch64-unknown-linux-gnu-
1984         ;;
1985       m68k)
1986         container_image=debian-m68k-cross
1987         container_cross_prefix=m68k-linux-gnu-
1988         ;;
1989       microblaze)
1990         container_image=debian-microblaze-cross
1991         container_cross_prefix=microblaze-linux-musl-
1992         ;;
1993       mips64el)
1994         container_image=debian-mips64el-cross
1995         container_cross_prefix=mips64el-linux-gnuabi64-
1996         ;;
1997       mips64)
1998         container_image=debian-mips64-cross
1999         container_cross_prefix=mips64-linux-gnuabi64-
2000         ;;
2001       mipsel)
2002         container_image=debian-mipsel-cross
2003         container_cross_prefix=mipsel-linux-gnu-
2004         ;;
2005       mips)
2006         container_image=debian-mips-cross
2007         container_cross_prefix=mips-linux-gnu-
2008         ;;
2009       nios2)
2010         container_image=debian-nios2-cross
2011         container_cross_prefix=nios2-linux-gnu-
2012         ;;
2013       ppc)
2014         container_image=debian-powerpc-test-cross
2015         container_cross_prefix=powerpc-linux-gnu-
2016         container_cross_cc=${container_cross_prefix}gcc-10
2017         ;;
2018       ppc64|ppc64le)
2019         container_image=debian-powerpc-test-cross
2020         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
2021         container_cross_cc=${container_cross_prefix}gcc-10
2022         ;;
2023       riscv64)
2024         container_image=debian-riscv64-test-cross
2025         container_cross_prefix=riscv64-linux-gnu-
2026         ;;
2027       s390x)
2028         container_image=debian-s390x-cross
2029         container_cross_prefix=s390x-linux-gnu-
2030         ;;
2031       sh4)
2032         container_image=debian-sh4-cross
2033         container_cross_prefix=sh4-linux-gnu-
2034         ;;
2035       sparc64)
2036         container_image=debian-sparc64-cross
2037         container_cross_prefix=sparc64-linux-gnu-
2038         ;;
2039       tricore)
2040         container_image=debian-tricore-cross
2041         container_cross_prefix=tricore-
2042         container_cross_as=tricore-as
2043         container_cross_ld=tricore-ld
2044         break
2045         ;;
2046       x86_64)
2047         container_image=debian-amd64-cross
2048         container_cross_prefix=x86_64-linux-gnu-
2049         ;;
2050       xtensa*)
2051         container_hosts=x86_64
2052         container_image=debian-xtensa-cross
2053
2054         # default to the dc232b cpu
2055         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
2056         ;;
2057     esac
2058     : ${container_cross_cc:=${container_cross_prefix}gcc}
2059     : ${container_cross_ar:=${container_cross_prefix}ar}
2060     : ${container_cross_as:=${container_cross_prefix}as}
2061     : ${container_cross_ld:=${container_cross_prefix}ld}
2062     : ${container_cross_nm:=${container_cross_prefix}nm}
2063     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
2064     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
2065     : ${container_cross_strip:=${container_cross_prefix}strip}
2066   done
2067
2068   try=cross
2069   case "$target_arch:$cpu" in
2070     aarch64_be:aarch64 | \
2071     armeb:arm | \
2072     i386:x86_64 | \
2073     mips*:mips64 | \
2074     ppc*:ppc64 | \
2075     sparc:sparc64 | \
2076     "$cpu:$cpu")
2077       try='native cross' ;;
2078   esac
2079   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
2080   for thistry in $try; do
2081     case $thistry in
2082     native)
2083       target_cc=$cc
2084       target_ccas=$ccas
2085       target_ar=$ar
2086       target_as=$as
2087       target_ld=$ld
2088       target_nm=$nm
2089       target_objcopy=$objcopy
2090       target_ranlib=$ranlib
2091       target_strip=$strip
2092       ;;
2093     cross)
2094       target_cc=
2095       if eval test -n "\"\${cross_cc_$target_arch}\""; then
2096         if eval has "\"\${cross_cc_$target_arch}\""; then
2097           eval "target_cc=\"\${cross_cc_$target_arch}\""
2098         fi
2099       else
2100         compute_target_variable $target_arch target_cc gcc
2101       fi
2102       target_ccas=$target_cc
2103       compute_target_variable $target_arch target_ar ar
2104       compute_target_variable $target_arch target_as as
2105       compute_target_variable $target_arch target_ld ld
2106       compute_target_variable $target_arch target_nm nm
2107       compute_target_variable $target_arch target_objcopy objcopy
2108       compute_target_variable $target_arch target_ranlib ranlib
2109       compute_target_variable $target_arch target_strip strip
2110       ;;
2111     esac
2112
2113     if test -n "$target_cc"; then
2114       case $target_arch in
2115         i386|x86_64)
2116           if $target_cc --version | grep -qi "clang"; then
2117             continue
2118           fi
2119           ;;
2120       esac
2121     elif test -n "$target_as" && test -n "$target_ld"; then
2122       # Special handling for assembler only targets
2123       case $target in
2124         tricore-softmmu)
2125           build_static=
2126           got_cross_cc=yes
2127           break
2128           ;;
2129         *)
2130           continue
2131           ;;
2132       esac
2133     else
2134       continue
2135     fi
2136
2137     write_c_skeleton
2138     case $1 in
2139       *-softmmu)
2140         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
2141           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
2142           got_cross_cc=yes
2143           break
2144         fi
2145         ;;
2146       *)
2147         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
2148           build_static=y
2149           got_cross_cc=yes
2150           break
2151         fi
2152         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
2153           build_static=
2154           got_cross_cc=yes
2155           break
2156         fi
2157         ;;
2158     esac
2159   done
2160   if test $got_cross_cc != yes; then
2161     build_static=
2162     target_cc=
2163     target_ccas=
2164     target_ar=
2165     target_as=
2166     target_ld=
2167     target_nm=
2168     target_objcopy=
2169     target_ranlib=
2170     target_strip=
2171   fi
2172 }
2173
2174 write_target_makefile() {
2175   echo "EXTRA_CFLAGS=$target_cflags"
2176   if test -n "$target_cc"; then
2177     echo "CC=$target_cc"
2178     echo "CCAS=$target_ccas"
2179   fi
2180   if test -n "$target_ar"; then
2181     echo "AR=$target_ar"
2182   fi
2183   if test -n "$target_as"; then
2184     echo "AS=$target_as"
2185   fi
2186   if test -n "$target_ld"; then
2187     echo "LD=$target_ld"
2188   fi
2189   if test -n "$target_nm"; then
2190     echo "NM=$target_nm"
2191   fi
2192   if test -n "$target_objcopy"; then
2193     echo "OBJCOPY=$target_objcopy"
2194   fi
2195   if test -n "$target_ranlib"; then
2196     echo "RANLIB=$target_ranlib"
2197   fi
2198   if test -n "$target_strip"; then
2199     echo "STRIP=$target_strip"
2200   fi
2201 }
2202
2203 write_container_target_makefile() {
2204   echo "EXTRA_CFLAGS=$target_cflags"
2205   if test -n "$container_cross_cc"; then
2206     echo "CC=\$(DOCKER_SCRIPT) cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2207     echo "CCAS=\$(DOCKER_SCRIPT) cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2208   fi
2209   echo "AR=\$(DOCKER_SCRIPT) cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
2210   echo "AS=\$(DOCKER_SCRIPT) cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
2211   echo "LD=\$(DOCKER_SCRIPT) cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
2212   echo "NM=\$(DOCKER_SCRIPT) cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
2213   echo "OBJCOPY=\$(DOCKER_SCRIPT) cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
2214   echo "RANLIB=\$(DOCKER_SCRIPT) cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
2215   echo "STRIP=\$(DOCKER_SCRIPT) cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
2216 }
2217
2218
2219
2220 ##########################################
2221 # check for vfio_user_server
2222
2223 case "$vfio_user_server" in
2224   enabled )
2225     if test "$git_submodules_action" != "ignore"; then
2226       git_submodules="${git_submodules} subprojects/libvfio-user"
2227     fi
2228     ;;
2229 esac
2230
2231 ##########################################
2232 # End of CC checks
2233 # After here, no more $cc or $ld runs
2234
2235 write_c_skeleton
2236
2237 if test "$fortify_source" = "yes" ; then
2238   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2239 fi
2240
2241 if test "$have_asan" = "yes"; then
2242   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2243   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2244   if test "$have_asan_iface_h" = "no" ; then
2245       echo "ASAN build enabled, but ASAN header missing." \
2246            "Without code annotation, the report may be inferior."
2247   elif test "$have_asan_iface_fiber" = "no" ; then
2248       echo "ASAN build enabled, but ASAN header is too old." \
2249            "Without code annotation, the report may be inferior."
2250   fi
2251 fi
2252 if test "$have_tsan" = "yes" ; then
2253   if test "$have_tsan_iface_fiber" = "yes" ; then
2254     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2255     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2256   else
2257     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2258   fi
2259 elif test "$tsan" = "yes" ; then
2260   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2261 fi
2262 if test "$have_ubsan" = "yes"; then
2263   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2264   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2265 fi
2266
2267 ##########################################
2268
2269 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
2270 if test "$solaris" = "no" && test "$tsan" = "no"; then
2271     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
2272         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
2273     fi
2274 fi
2275
2276 # Guest agent Windows MSI package
2277
2278 if test "$QEMU_GA_MANUFACTURER" = ""; then
2279   QEMU_GA_MANUFACTURER=QEMU
2280 fi
2281 if test "$QEMU_GA_DISTRO" = ""; then
2282   QEMU_GA_DISTRO=Linux
2283 fi
2284 if test "$QEMU_GA_VERSION" = ""; then
2285     QEMU_GA_VERSION=$(cat "$source_path"/VERSION)
2286 fi
2287
2288
2289 #######################################
2290 # cross-compiled firmware targets
2291
2292 # Set up build tree symlinks that point back into the source tree
2293 # (these can be both files and directories).
2294 # Caution: avoid adding files or directories here using wildcards. This
2295 # will result in problems later if a new file matching the wildcard is
2296 # added to the source tree -- nothing will cause configure to be rerun
2297 # so the build tree will be missing the link back to the new file, and
2298 # tests might fail. Prefer to keep the relevant files in their own
2299 # directory and symlink the directory instead.
2300 LINKS="Makefile"
2301 LINKS="$LINKS tests/tcg/Makefile.target"
2302 LINKS="$LINKS pc-bios/optionrom/Makefile"
2303 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
2304 LINKS="$LINKS pc-bios/vof/Makefile"
2305 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
2306 LINKS="$LINKS tests/avocado tests/data"
2307 LINKS="$LINKS tests/qemu-iotests/check"
2308 LINKS="$LINKS python"
2309 LINKS="$LINKS contrib/plugins/Makefile "
2310 for f in $LINKS ; do
2311     if [ -e "$source_path/$f" ]; then
2312         mkdir -p "$(dirname ./"$f")"
2313         symlink "$source_path/$f" "$f"
2314     fi
2315 done
2316
2317 # Mac OS X ships with a broken assembler
2318 roms=
2319 probe_target_compiler i386-softmmu
2320 if test -n "$target_cc" &&
2321         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2322         test "$targetos" != "haiku" && test "$softmmu" = yes ; then
2323     # Different host OS linkers have different ideas about the name of the ELF
2324     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
2325     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
2326     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
2327         if "$target_ld" -verbose 2>&1 | grep -q "^[[:space:]]*${emu}[[:space:]]*$"; then
2328             ld_i386_emulation="$emu"
2329             break
2330         fi
2331     done
2332     if test -n "$ld_i386_emulation"; then
2333         roms="pc-bios/optionrom"
2334         config_mak=pc-bios/optionrom/config.mak
2335         echo "# Automatically generated by configure - do not modify" > $config_mak
2336         echo "TOPSRC_DIR=$source_path" >> $config_mak
2337         echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_mak
2338         write_target_makefile >> $config_mak
2339     fi
2340 fi
2341
2342 probe_target_compiler ppc-softmmu
2343 if test -n "$target_cc" && test "$softmmu" = yes; then
2344     roms="$roms pc-bios/vof"
2345     config_mak=pc-bios/vof/config.mak
2346     echo "# Automatically generated by configure - do not modify" > $config_mak
2347     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
2348     write_target_makefile >> $config_mak
2349 fi
2350
2351 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
2352 # (which is the lowest architecture level that Clang supports)
2353 probe_target_compiler s390x-softmmu
2354 if test -n "$target_cc" && test "$softmmu" = yes; then
2355   write_c_skeleton
2356   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
2357   has_z900=$?
2358   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
2359     if [ $has_z900 != 0 ]; then
2360       echo "WARNING: Your compiler does not support the z900!"
2361       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2362     fi
2363     roms="$roms pc-bios/s390-ccw"
2364     config_mak=pc-bios/s390-ccw/config-host.mak
2365     echo "# Automatically generated by configure - do not modify" > $config_mak
2366     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
2367     write_target_makefile >> $config_mak
2368     # SLOF is required for building the s390-ccw firmware on s390x,
2369     # since it is using the libnet code from SLOF for network booting.
2370     git_submodules="${git_submodules} roms/SLOF"
2371   fi
2372 fi
2373
2374 #######################################
2375 # generate config-host.mak
2376
2377 # Check that the C++ compiler exists and works with the C compiler.
2378 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
2379 if has $cxx; then
2380     cat > $TMPC <<EOF
2381 int c_function(void);
2382 int main(void) { return c_function(); }
2383 EOF
2384
2385     compile_object
2386
2387     cat > $TMPCXX <<EOF
2388 extern "C" {
2389    int c_function(void);
2390 }
2391 int c_function(void) { return 42; }
2392 EOF
2393
2394     update_cxxflags
2395
2396     if do_cxx $CXXFLAGS $EXTRA_CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
2397         # C++ compiler $cxx works ok with C compiler $cc
2398         :
2399     else
2400         echo "C++ compiler $cxx does not work with C compiler $cc"
2401         echo "Disabling C++ specific optional code"
2402         cxx=
2403     fi
2404 else
2405     echo "No C++ compiler available; disabling C++ specific optional code"
2406     cxx=
2407 fi
2408
2409 if ! (GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2410     exit 1
2411 fi
2412
2413 config_host_mak="config-host.mak"
2414
2415 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2416 echo >> $config_host_mak
2417
2418 echo all: >> $config_host_mak
2419 echo "GIT=$git" >> $config_host_mak
2420 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2421 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2422
2423 if test "$debug_tcg" = "yes" ; then
2424   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2425 fi
2426 if test "$mingw32" = "yes" ; then
2427   echo "CONFIG_WIN32=y" >> $config_host_mak
2428   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
2429   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
2430   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
2431 else
2432   echo "CONFIG_POSIX=y" >> $config_host_mak
2433 fi
2434
2435 if test "$linux" = "yes" ; then
2436   echo "CONFIG_LINUX=y" >> $config_host_mak
2437 fi
2438
2439 if test "$darwin" = "yes" ; then
2440   echo "CONFIG_DARWIN=y" >> $config_host_mak
2441 fi
2442
2443 if test "$solaris" = "yes" ; then
2444   echo "CONFIG_SOLARIS=y" >> $config_host_mak
2445 fi
2446 if test "$static" = "yes" ; then
2447   echo "CONFIG_STATIC=y" >> $config_host_mak
2448 fi
2449 echo "SRC_PATH=$source_path" >> $config_host_mak
2450 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2451 if test "$modules" = "yes"; then
2452   echo "CONFIG_MODULES=y" >> $config_host_mak
2453 fi
2454
2455 # XXX: suppress that
2456 if [ "$bsd" = "yes" ] ; then
2457   echo "CONFIG_BSD=y" >> $config_host_mak
2458 fi
2459
2460 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2461
2462 if test "$have_asan_iface_fiber" = "yes" ; then
2463     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2464 fi
2465
2466 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2467     echo "CONFIG_TSAN=y" >> $config_host_mak
2468 fi
2469
2470 if test "$plugins" = "yes" ; then
2471     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2472 fi
2473
2474 if test -n "$gdb_bin"; then
2475     gdb_version=$($gdb_bin --version | head -n 1)
2476     if version_ge ${gdb_version##* } 9.1; then
2477         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2478     fi
2479 fi
2480
2481 echo "ROMS=$roms" >> $config_host_mak
2482 echo "MAKE=$make" >> $config_host_mak
2483 echo "PYTHON=$python" >> $config_host_mak
2484 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2485 echo "MESON=$meson" >> $config_host_mak
2486 echo "NINJA=$ninja" >> $config_host_mak
2487 echo "CC=$cc" >> $config_host_mak
2488 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2489 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
2490 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2491 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2492 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2493 echo "GLIB_BINDIR=$glib_bindir" >> $config_host_mak
2494 echo "GLIB_VERSION=$(pkg-config --modversion glib-2.0)" >> $config_host_mak
2495 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2496 echo "EXESUF=$EXESUF" >> $config_host_mak
2497
2498 # use included Linux headers
2499 if test "$linux" = "yes" ; then
2500   mkdir -p linux-headers
2501   case "$cpu" in
2502   i386|x86_64)
2503     linux_arch=x86
2504     ;;
2505   ppc|ppc64)
2506     linux_arch=powerpc
2507     ;;
2508   s390x)
2509     linux_arch=s390
2510     ;;
2511   aarch64)
2512     linux_arch=arm64
2513     ;;
2514   loongarch*)
2515     linux_arch=loongarch
2516     ;;
2517   mips64)
2518     linux_arch=mips
2519     ;;
2520   *)
2521     # For most CPUs the kernel architecture name and QEMU CPU name match.
2522     linux_arch="$cpu"
2523     ;;
2524   esac
2525     # For non-KVM architectures we will not have asm headers
2526     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2527       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2528     fi
2529 fi
2530
2531 for target in $target_list; do
2532     target_dir="$target"
2533     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2534     mkdir -p "$target_dir"
2535     case $target in
2536         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2537         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2538     esac
2539 done
2540
2541 if test "$default_targets" = "yes"; then
2542   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2543 fi
2544
2545 if test "$ccache_cpp2" = "yes"; then
2546   echo "export CCACHE_CPP2=y" >> $config_host_mak
2547 fi
2548
2549 if test "$safe_stack" = "yes"; then
2550   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
2551 fi
2552
2553 # tests/tcg configuration
2554 (makefile=tests/tcg/Makefile.prereqs
2555 echo "# Automatically generated by configure - do not modify" > $makefile
2556
2557 config_host_mak=tests/tcg/config-host.mak
2558 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2559 echo "SRC_PATH=$source_path" >> $config_host_mak
2560 echo "HOST_CC=$host_cc" >> $config_host_mak
2561
2562 tcg_tests_targets=
2563 for target in $target_list; do
2564   arch=${target%%-*}
2565
2566   config_target_mak=tests/tcg/config-$target.mak
2567
2568   echo "# Automatically generated by configure - do not modify" > $config_target_mak
2569   echo "TARGET_NAME=$arch" >> "$config_target_mak"
2570   case $target in
2571     xtensa*-linux-user)
2572       # the toolchain is not complete with headers, only build softmmu tests
2573       continue
2574       ;;
2575     *-softmmu)
2576       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
2577       qemu="qemu-system-$arch"
2578       ;;
2579     *-linux-user|*-bsd-user)
2580       qemu="qemu-$arch"
2581       ;;
2582   esac
2583
2584   probe_target_compiler $target
2585   if test $got_cross_cc = yes; then
2586       # Test for compiler features for optional tests. We only do this
2587       # for cross compilers because ensuring the docker containers based
2588       # compilers is a requirememt for adding a new test that needs a
2589       # compiler feature.
2590
2591       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
2592       write_target_makefile >> "$config_target_mak"
2593       case $target in
2594           aarch64-*)
2595               if do_compiler "$target_cc" $target_cflags \
2596                              -march=armv8.1-a+sve -o $TMPE $TMPC; then
2597                   echo "CROSS_CC_HAS_SVE=y" >> "$config_target_mak"
2598               fi
2599               if do_compiler "$target_cc" $target_cflags \
2600                              -march=armv8.1-a+sve2 -o $TMPE $TMPC; then
2601                   echo "CROSS_CC_HAS_SVE2=y" >> "$config_target_mak"
2602               fi
2603               if do_compiler "$target_cc" $target_cflags \
2604                              -march=armv8.3-a -o $TMPE $TMPC; then
2605                   echo "CROSS_CC_HAS_ARMV8_3=y" >> "$config_target_mak"
2606               fi
2607               if do_compiler "$target_cc" $target_cflags \
2608                              -mbranch-protection=standard -o $TMPE $TMPC; then
2609                   echo "CROSS_CC_HAS_ARMV8_BTI=y" >> "$config_target_mak"
2610               fi
2611               if do_compiler "$target_cc" $target_cflags \
2612                              -march=armv8.5-a+memtag -o $TMPE $TMPC; then
2613                   echo "CROSS_CC_HAS_ARMV8_MTE=y" >> "$config_target_mak"
2614               fi
2615               ;;
2616           ppc*)
2617               if do_compiler "$target_cc" $target_cflags \
2618                              -mpower8-vector -o $TMPE $TMPC; then
2619                   echo "CROSS_CC_HAS_POWER8_VECTOR=y" >> "$config_target_mak"
2620               fi
2621               if do_compiler "$target_cc" $target_cflags \
2622                              -mpower10 -o $TMPE $TMPC; then
2623                   echo "CROSS_CC_HAS_POWER10=y" >> "$config_target_mak"
2624               fi
2625               ;;
2626           i386-linux-user)
2627               if do_compiler "$target_cc" $target_cflags \
2628                              -Werror -fno-pie -o $TMPE $TMPC; then
2629                   echo "CROSS_CC_HAS_I386_NOPIE=y" >> "$config_target_mak"
2630               fi
2631               ;;
2632       esac
2633   elif test -n "$container_image"; then
2634       echo "build-tcg-tests-$target: docker-image-$container_image" >> $makefile
2635       echo "BUILD_STATIC=y" >> "$config_target_mak"
2636       write_container_target_makefile >> "$config_target_mak"
2637       case $target in
2638           aarch64-*)
2639               echo "CROSS_CC_HAS_SVE=y" >> "$config_target_mak"
2640               echo "CROSS_CC_HAS_SVE2=y" >> "$config_target_mak"
2641               echo "CROSS_CC_HAS_ARMV8_3=y" >> "$config_target_mak"
2642               echo "CROSS_CC_HAS_ARMV8_BTI=y" >> "$config_target_mak"
2643               echo "CROSS_CC_HAS_ARMV8_MTE=y" >> "$config_target_mak"
2644               ;;
2645           ppc*)
2646               echo "CROSS_CC_HAS_POWER8_VECTOR=y" >> "$config_target_mak"
2647               echo "CROSS_CC_HAS_POWER10=y" >> "$config_target_mak"
2648               ;;
2649           i386-linux-user)
2650               echo "CROSS_CC_HAS_I386_NOPIE=y" >> "$config_target_mak"
2651               ;;
2652       esac
2653       got_cross_cc=yes
2654   fi
2655   if test $got_cross_cc = yes; then
2656       mkdir -p tests/tcg/$target
2657       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
2658       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> $makefile
2659       tcg_tests_targets="$tcg_tests_targets $target"
2660   fi
2661 done
2662 echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> $makefile)
2663
2664 if test "$skip_meson" = no; then
2665   cross="config-meson.cross.new"
2666   meson_quote() {
2667     test $# = 0 && return
2668     echo "'$(echo $* | sed "s/ /','/g")'"
2669   }
2670
2671   echo "# Automatically generated by configure - do not modify" > $cross
2672   echo "[properties]" >> $cross
2673
2674   # unroll any custom device configs
2675   for a in $device_archs; do
2676       eval "c=\$devices_${a}"
2677       echo "${a}-softmmu = '$c'" >> $cross
2678   done
2679
2680   test -z "$cxx" && echo "link_language = 'c'" >> $cross
2681   echo "[built-in options]" >> $cross
2682   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2683   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2684   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2685   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2686   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2687   echo "[binaries]" >> $cross
2688   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2689   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2690   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2691   echo "ar = [$(meson_quote $ar)]" >> $cross
2692   echo "nm = [$(meson_quote $nm)]" >> $cross
2693   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
2694   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2695   if has $sdl2_config; then
2696     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2697   fi
2698   echo "strip = [$(meson_quote $strip)]" >> $cross
2699   echo "widl = [$(meson_quote $widl)]" >> $cross
2700   echo "windres = [$(meson_quote $windres)]" >> $cross
2701   if test "$cross_compile" = "yes"; then
2702     cross_arg="--cross-file config-meson.cross"
2703     echo "[host_machine]" >> $cross
2704     echo "system = '$targetos'" >> $cross
2705     case "$cpu" in
2706         i386)
2707             echo "cpu_family = 'x86'" >> $cross
2708             ;;
2709         *)
2710             echo "cpu_family = '$cpu'" >> $cross
2711             ;;
2712     esac
2713     echo "cpu = '$cpu'" >> $cross
2714     if test "$bigendian" = "yes" ; then
2715         echo "endian = 'big'" >> $cross
2716     else
2717         echo "endian = 'little'" >> $cross
2718     fi
2719   else
2720     cross_arg="--native-file config-meson.cross"
2721   fi
2722   mv $cross config-meson.cross
2723
2724   rm -rf meson-private meson-info meson-logs
2725
2726   # Built-in options
2727   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2728   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2729   test "$pie" = no && meson_option_add -Db_pie=false
2730   test "$werror" = yes && meson_option_add -Dwerror=true
2731
2732   # QEMU options
2733   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2734   test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2735   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2736   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2737   test "$slirp" != auto && meson_option_add "-Dslirp=$slirp"
2738   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2739   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2740   test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server"
2741   run_meson() {
2742     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2743   }
2744   eval run_meson $meson_options
2745   if test "$?" -ne 0 ; then
2746       error_exit "meson setup failed"
2747   fi
2748 else
2749   if test -f meson-private/cmd_line.txt; then
2750     # Adjust old command line options whose type was changed
2751     # Avoids having to use "setup --wipe" when Meson is upgraded
2752     perl -i -ne '
2753       s/^gettext = true$/gettext = auto/;
2754       s/^gettext = false$/gettext = disabled/;
2755       /^b_staticpic/ && next;
2756       print;' meson-private/cmd_line.txt
2757   fi
2758 fi
2759
2760 # Save the configure command line for later reuse.
2761 cat <<EOD >config.status
2762 #!/bin/sh
2763 # Generated by configure.
2764 # Run this file to recreate the current configuration.
2765 # Compiler output produced by configure, useful for debugging
2766 # configure, is in config.log if it exists.
2767 EOD
2768
2769 preserve_env() {
2770     envname=$1
2771
2772     eval envval=\$$envname
2773
2774     if test -n "$envval"
2775     then
2776         echo "$envname='$envval'" >> config.status
2777         echo "export $envname" >> config.status
2778     else
2779         echo "unset $envname" >> config.status
2780     fi
2781 }
2782
2783 # Preserve various env variables that influence what
2784 # features/build target configure will detect
2785 preserve_env AR
2786 preserve_env AS
2787 preserve_env CC
2788 preserve_env CFLAGS
2789 preserve_env CXX
2790 preserve_env CXXFLAGS
2791 preserve_env LD
2792 preserve_env LDFLAGS
2793 preserve_env LD_LIBRARY_PATH
2794 preserve_env MAKE
2795 preserve_env NM
2796 preserve_env OBJCFLAGS
2797 preserve_env OBJCOPY
2798 preserve_env PATH
2799 preserve_env PKG_CONFIG
2800 preserve_env PKG_CONFIG_LIBDIR
2801 preserve_env PKG_CONFIG_PATH
2802 preserve_env PYTHON
2803 preserve_env SDL2_CONFIG
2804 preserve_env SMBD
2805 preserve_env STRIP
2806 preserve_env WIDL
2807 preserve_env WINDRES
2808
2809 printf "exec" >>config.status
2810 for i in "$0" "$@"; do
2811   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2812 done
2813 echo ' "$@"' >>config.status
2814 chmod +x config.status
2815
2816 rm -r "$TMPDIR1"