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. 8CLICOLOR_FORCE= GREP_OPTIONS= 9unset CLICOLOR_FORCE GREP_OPTIONS 10 11# Don't allow CCACHE, if present, to use cached results of compile tests! 12export CCACHE_RECACHE=yes 13 14# make source path absolute 15source_path=$(cd "$(dirname -- "$0")"; pwd) 16 17if test "$PWD" = "$source_path" 18then 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 if ! mkdir build || ! touch $MARKER 35 then 36 echo "ERROR: Could not create ./build directory. Check the permissions on" 37 echo "your source directory, or try doing an out-of-tree build." 38 exit 1 39 fi 40 41 cat > GNUmakefile <<'EOF' 42# This file is auto-generated by configure to support in-source tree 43# 'make' command invocation 44 45ifeq ($(MAKECMDGOALS),) 46recurse: all 47endif 48 49.NOTPARALLEL: % 50%: force 51 @echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...' 52 @$(MAKE) -C build -f Makefile $(MAKECMDGOALS) 53 @if test "$(MAKECMDGOALS)" = "distclean" && \ 54 test -e build/auto-created-by-configure ; \ 55 then \ 56 rm -rf build GNUmakefile ; \ 57 fi 58force: ; 59.PHONY: force 60GNUmakefile: ; 61 62EOF 63 cd build 64 exec "$source_path/configure" "$@" 65fi 66 67# Temporary directory used for files created while 68# configure runs. Since it is in the build directory 69# we can safely blow away any previous version of it 70# (and we need not jump through hoops to try to delete 71# it when configure exits.) 72TMPDIR1="config-temp" 73rm -rf "${TMPDIR1}" 74if ! mkdir -p "${TMPDIR1}"; then 75 echo "ERROR: failed to create temporary directory" 76 exit 1 77fi 78 79TMPB="qemu-conf" 80TMPC="${TMPDIR1}/${TMPB}.c" 81TMPO="${TMPDIR1}/${TMPB}.o" 82TMPM="${TMPDIR1}/${TMPB}.m" 83TMPE="${TMPDIR1}/${TMPB}.exe" 84 85rm -f config.log 86 87# Print a helpful header at the top of config.log 88echo "# QEMU configure log $(date)" >> config.log 89printf "# Configured with:" >> config.log 90# repeat the invocation to log and stdout for CI 91invoke=$(printf " '%s'" "$0" "$@") 92test -n "$GITLAB_CI" && echo "configuring with: $invoke" 93{ echo "$invoke"; echo; echo "#"; } >> config.log 94 95quote_sh() { 96 printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&'," 97} 98 99print_error() { 100 (echo 101 echo "ERROR: $1" 102 while test -n "$2"; do 103 echo " $2" 104 shift 105 done 106 echo) >&2 107} 108 109error_exit() { 110 print_error "$@" 111 exit 1 112} 113 114do_compiler() { 115 # Run the compiler, capturing its output to the log. First argument 116 # is compiler binary to execute. 117 compiler="$1" 118 shift 119 if test -n "$BASH_VERSION"; then eval ' 120 echo >>config.log " 121funcs: ${FUNCNAME[*]} 122lines: ${BASH_LINENO[*]}" 123 '; fi 124 echo $compiler "$@" >> config.log 125 $compiler "$@" >> config.log 2>&1 || return $? 126} 127 128do_compiler_werror() { 129 # Run the compiler, capturing its output to the log. First argument 130 # is compiler binary to execute. 131 compiler="$1" 132 shift 133 if test -n "$BASH_VERSION"; then eval ' 134 echo >>config.log " 135funcs: ${FUNCNAME[*]} 136lines: ${BASH_LINENO[*]}" 137 '; fi 138 echo $compiler "$@" >> config.log 139 $compiler "$@" >> config.log 2>&1 || return $? 140 # Test passed. If this is an --enable-werror build, rerun 141 # the test with -Werror and bail out if it fails. This 142 # makes warning-generating-errors in configure test code 143 # obvious to developers. 144 if test "$werror" != "yes"; then 145 return 0 146 fi 147 # Don't bother rerunning the compile if we were already using -Werror 148 case "$*" in 149 *-Werror*) 150 return 0 151 ;; 152 esac 153 echo $compiler -Werror "$@" >> config.log 154 $compiler -Werror "$@" >> config.log 2>&1 && return $? 155 error_exit "configure test passed without -Werror but failed with -Werror." \ 156 "This is probably a bug in the configure script. The failing command" \ 157 "will be at the bottom of config.log." \ 158 "You can run configure with --disable-werror to bypass this check." 159} 160 161do_cc() { 162 do_compiler_werror "$cc" $CPU_CFLAGS "$@" 163} 164 165do_objc() { 166 do_compiler_werror "$objcc" $CPU_CFLAGS "$@" 167} 168 169# Append $2 to the variable named $1, with space separation 170add_to() { 171 eval $1=\${$1:+\"\$$1 \"}\$2 172} 173 174compile_object() { 175 local_cflags="$1" 176 do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC 177} 178 179compile_prog() { 180 local_cflags="$1" 181 local_ldflags="$2" 182 do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \ 183 $LDFLAGS $EXTRA_LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags 184} 185 186# symbolically link $1 to $2. Portable version of "ln -sf". 187symlink() { 188 rm -rf "$2" 189 mkdir -p "$(dirname "$2")" 190 ln -s "$1" "$2" 191} 192 193# check whether a command is available to this shell (may be either an 194# executable or a builtin) 195has() { 196 type "$1" >/dev/null 2>&1 197} 198 199version_ge () { 200 local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ') 201 local_ver2=$(echo "$2" | tr . ' ') 202 while true; do 203 set x $local_ver1 204 local_first=${2-0} 205 # 'shift 2' if $2 is set, or 'shift' if $2 is not set 206 shift ${2:+2} 207 local_ver1=$* 208 set x $local_ver2 209 # the second argument finished, the first must be greater or equal 210 test $# = 1 && return 0 211 test $local_first -lt $2 && return 1 212 test $local_first -gt $2 && return 0 213 shift ${2:+2} 214 local_ver2=$* 215 done 216} 217 218if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]"; 219then 220 error_exit "main directory cannot contain spaces nor colons" 221fi 222 223# default parameters 224cpu="" 225static="no" 226cross_compile="no" 227cross_prefix="" 228host_cc="cc" 229stack_protector="" 230safe_stack="" 231use_containers="yes" 232gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb") 233gdb_arches="" 234 235if test -e "$source_path/.git" 236then 237 git_submodules_action="update" 238else 239 git_submodules_action="ignore" 240fi 241 242git_submodules="ui/keycodemapdb" 243git="git" 244 245# Don't accept a target_list environment variable. 246unset target_list 247unset target_list_exclude 248 249# Default value for a variable defining feature "foo". 250# * foo="no" feature will only be used if --enable-foo arg is given 251# * foo="" feature will be searched for, and if found, will be used 252# unless --disable-foo is given 253# * foo="yes" this value will only be set by --enable-foo flag. 254# feature will searched for, 255# if not found, configure exits with error 256# 257# Always add --enable-foo and --disable-foo command line args. 258# Distributions want to ensure that several features are compiled in, and it 259# is impossible without a --enable-foo that exits if a feature is not found. 260 261default_feature="" 262# parse CC options second 263for opt do 264 optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)') 265 case "$opt" in 266 --without-default-features) 267 default_feature="no" 268 ;; 269 esac 270done 271 272EXTRA_CFLAGS="" 273EXTRA_CXXFLAGS="" 274EXTRA_OBJCFLAGS="" 275EXTRA_LDFLAGS="" 276 277debug_tcg="no" 278sanitizers="no" 279tsan="no" 280fortify_source="yes" 281EXESUF="" 282modules="no" 283prefix="/usr/local" 284qemu_suffix="qemu" 285softmmu="yes" 286linux_user="" 287bsd_user="" 288pie="" 289coroutine="" 290plugins="$default_feature" 291meson="" 292ninja="" 293bindir="bin" 294skip_meson=no 295vfio_user_server="disabled" 296 297# The following Meson options are handled manually (still they 298# are included in the automatically generated help message) 299 300# 1. Track which submodules are needed 301fdt="auto" 302 303# 2. Automatically enable/disable other options 304tcg="auto" 305cfi="false" 306 307# parse CC options second 308for opt do 309 optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)') 310 case "$opt" in 311 --cross-prefix=*) cross_prefix="$optarg" 312 cross_compile="yes" 313 ;; 314 --cc=*) CC="$optarg" 315 ;; 316 --cxx=*) CXX="$optarg" 317 ;; 318 --cpu=*) cpu="$optarg" 319 ;; 320 --extra-cflags=*) 321 EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg" 322 EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg" 323 EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg" 324 ;; 325 --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg" 326 ;; 327 --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg" 328 ;; 329 --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg" 330 ;; 331 --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option" 332 ;; 333 --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*} 334 eval "cross_cc_cflags_${cc_arch}=\$optarg" 335 ;; 336 --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*} 337 eval "cross_cc_${cc_arch}=\$optarg" 338 ;; 339 --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option" 340 ;; 341 --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*} 342 eval "cross_prefix_${cc_arch}=\$optarg" 343 ;; 344 esac 345done 346 347# Preferred compiler: 348# ${CC} (if set) 349# ${cross_prefix}gcc (if cross-prefix specified) 350# system compiler 351if test -z "${CC}${cross_prefix}"; then 352 cc="$host_cc" 353else 354 cc="${CC-${cross_prefix}gcc}" 355fi 356 357if test -z "${CXX}${cross_prefix}"; then 358 cxx="c++" 359else 360 cxx="${CXX-${cross_prefix}g++}" 361fi 362 363ar="${AR-${cross_prefix}ar}" 364as="${AS-${cross_prefix}as}" 365ccas="${CCAS-$cc}" 366objcopy="${OBJCOPY-${cross_prefix}objcopy}" 367ld="${LD-${cross_prefix}ld}" 368ranlib="${RANLIB-${cross_prefix}ranlib}" 369nm="${NM-${cross_prefix}nm}" 370smbd="$SMBD" 371strip="${STRIP-${cross_prefix}strip}" 372widl="${WIDL-${cross_prefix}widl}" 373windres="${WINDRES-${cross_prefix}windres}" 374windmc="${WINDMC-${cross_prefix}windmc}" 375pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}" 376query_pkg_config() { 377 "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@" 378} 379pkg_config=query_pkg_config 380sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}" 381 382# default flags for all hosts 383# We use -fwrapv to tell the compiler that we require a C dialect where 384# left shift of signed integers is well defined and has the expected 385# 2s-complement style results. (Both clang and gcc agree that it 386# provides these semantics.) 387QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv" 388QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS" 389 390QEMU_LDFLAGS= 391 392# Flags that are needed during configure but later taken care of by Meson 393CONFIGURE_CFLAGS="-std=gnu11 -Wall" 394CONFIGURE_LDFLAGS= 395 396 397check_define() { 398cat > $TMPC <<EOF 399#if !defined($1) 400#error $1 not defined 401#endif 402int main(void) { return 0; } 403EOF 404 compile_object 405} 406 407check_include() { 408cat > $TMPC <<EOF 409#include <$1> 410int main(void) { return 0; } 411EOF 412 compile_object 413} 414 415write_c_skeleton() { 416 cat > $TMPC <<EOF 417int main(void) { return 0; } 418EOF 419} 420 421if check_define __linux__ ; then 422 targetos=linux 423elif check_define _WIN32 ; then 424 targetos=windows 425elif check_define __OpenBSD__ ; then 426 targetos=openbsd 427elif check_define __sun__ ; then 428 targetos=sunos 429elif check_define __HAIKU__ ; then 430 targetos=haiku 431elif check_define __FreeBSD__ ; then 432 targetos=freebsd 433elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then 434 targetos=gnu/kfreebsd 435elif check_define __DragonFly__ ; then 436 targetos=dragonfly 437elif check_define __NetBSD__; then 438 targetos=netbsd 439elif check_define __APPLE__; then 440 targetos=darwin 441else 442 # This is a fatal error, but don't report it yet, because we 443 # might be going to just print the --help text, or it might 444 # be the result of a missing compiler. 445 targetos=bogus 446fi 447 448# OS specific 449 450mingw32="no" 451bsd="no" 452linux="no" 453solaris="no" 454case $targetos in 455windows) 456 mingw32="yes" 457 plugins="no" 458 pie="no" 459;; 460gnu/kfreebsd) 461 bsd="yes" 462;; 463freebsd) 464 bsd="yes" 465 make="${MAKE-gmake}" 466 # needed for kinfo_getvmmap(3) in libutil.h 467;; 468dragonfly) 469 bsd="yes" 470 make="${MAKE-gmake}" 471;; 472netbsd) 473 bsd="yes" 474 make="${MAKE-gmake}" 475;; 476openbsd) 477 bsd="yes" 478 make="${MAKE-gmake}" 479;; 480darwin) 481 bsd="yes" 482 darwin="yes" 483 # Disable attempts to use ObjectiveC features in os/object.h since they 484 # won't work when we're compiling with gcc as a C compiler. 485 QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS" 486;; 487sunos) 488 solaris="yes" 489 make="${MAKE-gmake}" 490# needed for CMSG_ macros in sys/socket.h 491 QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS" 492# needed for TIOCWIN* defines in termios.h 493 QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS" 494;; 495haiku) 496 pie="no" 497 QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS" 498;; 499linux) 500 linux="yes" 501;; 502esac 503 504if test ! -z "$cpu" ; then 505 # command line argument 506 : 507elif check_define __i386__ ; then 508 cpu="i386" 509elif check_define __x86_64__ ; then 510 if check_define __ILP32__ ; then 511 cpu="x32" 512 else 513 cpu="x86_64" 514 fi 515elif check_define __sparc__ ; then 516 if check_define __arch64__ ; then 517 cpu="sparc64" 518 else 519 cpu="sparc" 520 fi 521elif check_define _ARCH_PPC ; then 522 if check_define _ARCH_PPC64 ; then 523 if check_define _LITTLE_ENDIAN ; then 524 cpu="ppc64le" 525 else 526 cpu="ppc64" 527 fi 528 else 529 cpu="ppc" 530 fi 531elif check_define __mips__ ; then 532 cpu="mips" 533elif check_define __s390__ ; then 534 if check_define __s390x__ ; then 535 cpu="s390x" 536 else 537 cpu="s390" 538 fi 539elif check_define __riscv ; then 540 cpu="riscv" 541elif check_define __arm__ ; then 542 cpu="arm" 543elif check_define __aarch64__ ; then 544 cpu="aarch64" 545elif check_define __loongarch64 ; then 546 cpu="loongarch64" 547else 548 # Using uname is really broken, but it is just a fallback for architectures 549 # that are going to use TCI anyway 550 cpu=$(uname -m) 551 echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'" 552fi 553 554# Normalise host CPU name and set multilib cflags. The canonicalization 555# isn't really necessary, because the architectures that we check for 556# should not hit the 'uname -m' case, but better safe than sorry. 557# Note that this case should only have supported host CPUs, not guests. 558case "$cpu" in 559 armv*b|armv*l|arm) 560 cpu="arm" ;; 561 562 i386|i486|i586|i686) 563 cpu="i386" 564 CPU_CFLAGS="-m32" ;; 565 x32) 566 cpu="x86_64" 567 CPU_CFLAGS="-mx32" ;; 568 x86_64|amd64) 569 cpu="x86_64" 570 # ??? Only extremely old AMD cpus do not have cmpxchg16b. 571 # If we truly care, we should simply detect this case at 572 # runtime and generate the fallback to serial emulation. 573 CPU_CFLAGS="-m64 -mcx16" ;; 574 575 mips*) 576 cpu="mips" ;; 577 578 ppc) 579 CPU_CFLAGS="-m32" ;; 580 ppc64) 581 CPU_CFLAGS="-m64 -mbig-endian" ;; 582 ppc64le) 583 cpu="ppc64" 584 CPU_CFLAGS="-m64 -mlittle-endian" ;; 585 586 s390) 587 CPU_CFLAGS="-m31" ;; 588 s390x) 589 CPU_CFLAGS="-m64" ;; 590 591 sparc|sun4[cdmuv]) 592 cpu="sparc" 593 CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;; 594 sparc64) 595 CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;; 596esac 597 598: ${make=${MAKE-make}} 599 600 601check_py_version() { 602 # We require python >= 3.6. 603 # NB: a True python conditional creates a non-zero return code (Failure) 604 "$1" -c 'import sys; sys.exit(sys.version_info < (3,6))' 605} 606 607python= 608first_python= 609if test -z "${PYTHON}"; then 610 explicit_python=no 611 # A bare 'python' is traditionally python 2.x, but some distros 612 # have it as python 3.x, so check in both places. 613 for binary in python3 python python3.11 python3.10 python3.9 python3.8 python3.7 python3.6; do 614 if has "$binary"; then 615 python=$(command -v "$binary") 616 if check_py_version "$python"; then 617 # This one is good. 618 first_python= 619 break 620 else 621 first_python=$python 622 fi 623 fi 624 done 625else 626 # Same as above, but only check the environment variable. 627 has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable" 628 python=$(command -v "$PYTHON") 629 explicit_python=yes 630 if check_py_version "$python"; then 631 # This one is good. 632 first_python= 633 else 634 first_python=$first_python 635 fi 636fi 637 638# Check for ancillary tools used in testing 639genisoimage= 640for binary in genisoimage mkisofs 641do 642 if has $binary 643 then 644 genisoimage=$(command -v "$binary") 645 break 646 fi 647done 648 649# Default objcc to clang if available, otherwise use CC 650if has clang; then 651 objcc=clang 652else 653 objcc="$cc" 654fi 655 656if test "$mingw32" = "yes" ; then 657 EXESUF=".exe" 658 # MinGW needs -mthreads for TLS and macro _MT. 659 CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS" 660 prefix="/qemu" 661 bindir="" 662 qemu_suffix="" 663fi 664 665werror="" 666 667meson_option_build_array() { 668 printf '[' 669 (if test "$targetos" = windows; then 670 IFS=\; 671 else 672 IFS=: 673 fi 674 for e in $1; do 675 printf '"""' 676 # backslash escape any '\' and '"' characters 677 printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g' 678 printf '""",' 679 done) 680 printf ']\n' 681} 682 683. "$source_path/scripts/meson-buildoptions.sh" 684 685meson_options= 686meson_option_add() { 687 meson_options="$meson_options $(quote_sh "$1")" 688} 689meson_option_parse() { 690 meson_options="$meson_options $(_meson_option_parse "$@")" 691 if test $? -eq 1; then 692 echo "ERROR: unknown option $1" 693 echo "Try '$0 --help' for more information" 694 exit 1 695 fi 696} 697 698for opt do 699 optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)') 700 case "$opt" in 701 --help|-h) show_help=yes 702 ;; 703 --version|-V) exec cat "$source_path/VERSION" 704 ;; 705 --prefix=*) prefix="$optarg" 706 ;; 707 --cross-prefix=*) 708 ;; 709 --cc=*) 710 ;; 711 --host-cc=*) host_cc="$optarg" 712 ;; 713 --cxx=*) 714 ;; 715 --objcc=*) objcc="$optarg" 716 ;; 717 --make=*) make="$optarg" 718 ;; 719 --install=*) 720 ;; 721 --python=*) python="$optarg" ; explicit_python=yes 722 ;; 723 --skip-meson) skip_meson=yes 724 ;; 725 --meson=*) meson="$optarg" 726 ;; 727 --ninja=*) ninja="$optarg" 728 ;; 729 --smbd=*) smbd="$optarg" 730 ;; 731 --extra-cflags=*) 732 ;; 733 --extra-cxxflags=*) 734 ;; 735 --extra-objcflags=*) 736 ;; 737 --extra-ldflags=*) 738 ;; 739 --cross-cc-*) 740 ;; 741 --cross-prefix-*) 742 ;; 743 --enable-debug-info) meson_option_add -Ddebug=true 744 ;; 745 --disable-debug-info) meson_option_add -Ddebug=false 746 ;; 747 --enable-modules) 748 modules="yes" 749 ;; 750 --disable-modules) 751 modules="no" 752 ;; 753 --cpu=*) 754 ;; 755 --target-list=*) target_list="$optarg" 756 if test "$target_list_exclude"; then 757 error_exit "Can't mix --target-list with --target-list-exclude" 758 fi 759 ;; 760 --target-list-exclude=*) target_list_exclude="$optarg" 761 if test "$target_list"; then 762 error_exit "Can't mix --target-list-exclude with --target-list" 763 fi 764 ;; 765 --with-default-devices) meson_option_add -Ddefault_devices=true 766 ;; 767 --without-default-devices) meson_option_add -Ddefault_devices=false 768 ;; 769 --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option" 770 ;; 771 --with-devices-*) device_arch=${opt#--with-devices-}; 772 device_arch=${device_arch%%=*} 773 cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak 774 if test -f "$cf"; then 775 device_archs="$device_archs $device_arch" 776 eval "devices_${device_arch}=\$optarg" 777 else 778 error_exit "File $cf does not exist" 779 fi 780 ;; 781 --without-default-features) # processed above 782 ;; 783 --static) 784 static="yes" 785 QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS" 786 ;; 787 --bindir=*) bindir="$optarg" 788 ;; 789 --with-suffix=*) qemu_suffix="$optarg" 790 ;; 791 --host=*|--build=*|\ 792 --disable-dependency-tracking|\ 793 --sbindir=*|--sharedstatedir=*|\ 794 --oldincludedir=*|--datarootdir=*|--infodir=*|\ 795 --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*) 796 # These switches are silently ignored, for compatibility with 797 # autoconf-generated configure scripts. This allows QEMU's 798 # configure to be used by RPM and similar macros that set 799 # lots of directory switches by default. 800 ;; 801 --enable-debug-tcg) debug_tcg="yes" 802 ;; 803 --disable-debug-tcg) debug_tcg="no" 804 ;; 805 --enable-debug) 806 # Enable debugging options that aren't excessively noisy 807 debug_tcg="yes" 808 meson_option_parse --enable-debug-mutex "" 809 meson_option_add -Doptimization=0 810 fortify_source="no" 811 ;; 812 --enable-sanitizers) sanitizers="yes" 813 ;; 814 --disable-sanitizers) sanitizers="no" 815 ;; 816 --enable-tsan) tsan="yes" 817 ;; 818 --disable-tsan) tsan="no" 819 ;; 820 --disable-tcg) tcg="disabled" 821 plugins="no" 822 ;; 823 --enable-tcg) tcg="enabled" 824 ;; 825 --disable-system) softmmu="no" 826 ;; 827 --enable-system) softmmu="yes" 828 ;; 829 --disable-user) 830 linux_user="no" ; 831 bsd_user="no" ; 832 ;; 833 --enable-user) ;; 834 --disable-linux-user) linux_user="no" 835 ;; 836 --enable-linux-user) linux_user="yes" 837 ;; 838 --disable-bsd-user) bsd_user="no" 839 ;; 840 --enable-bsd-user) bsd_user="yes" 841 ;; 842 --enable-pie) pie="yes" 843 ;; 844 --disable-pie) pie="no" 845 ;; 846 --enable-werror) werror="yes" 847 ;; 848 --disable-werror) werror="no" 849 ;; 850 --enable-stack-protector) stack_protector="yes" 851 ;; 852 --disable-stack-protector) stack_protector="no" 853 ;; 854 --enable-safe-stack) safe_stack="yes" 855 ;; 856 --disable-safe-stack) safe_stack="no" 857 ;; 858 --enable-cfi) 859 cfi="true"; 860 meson_option_add -Db_lto=true 861 ;; 862 --disable-cfi) cfi="false" 863 ;; 864 --disable-fdt) fdt="disabled" 865 ;; 866 --enable-fdt) fdt="enabled" 867 ;; 868 --enable-fdt=git) fdt="internal" 869 ;; 870 --enable-fdt=*) fdt="$optarg" 871 ;; 872 --with-coroutine=*) coroutine="$optarg" 873 ;; 874 --with-git=*) git="$optarg" 875 ;; 876 --with-git-submodules=*) 877 git_submodules_action="$optarg" 878 ;; 879 --enable-plugins) if test "$mingw32" = "yes"; then 880 error_exit "TCG plugins not currently supported on Windows platforms" 881 else 882 plugins="yes" 883 fi 884 ;; 885 --disable-plugins) plugins="no" 886 ;; 887 --enable-containers) use_containers="yes" 888 ;; 889 --disable-containers) use_containers="no" 890 ;; 891 --gdb=*) gdb_bin="$optarg" 892 ;; 893 --enable-vfio-user-server) vfio_user_server="enabled" 894 ;; 895 --disable-vfio-user-server) vfio_user_server="disabled" 896 ;; 897 # everything else has the same name in configure and meson 898 --*) meson_option_parse "$opt" "$optarg" 899 ;; 900 esac 901done 902 903# test for any invalid configuration combinations 904if test "$plugins" = "yes" -a "$tcg" = "disabled"; then 905 error_exit "Can't enable plugins on non-TCG builds" 906fi 907 908case $git_submodules_action in 909 update|validate) 910 if test ! -e "$source_path/.git"; then 911 echo "ERROR: cannot $git_submodules_action git submodules without .git" 912 exit 1 913 fi 914 ;; 915 ignore) 916 if ! test -f "$source_path/ui/keycodemapdb/README" 917 then 918 echo 919 echo "ERROR: missing GIT submodules" 920 echo 921 if test -e "$source_path/.git"; then 922 echo "--with-git-submodules=ignore specified but submodules were not" 923 echo "checked out. Please initialize and update submodules." 924 else 925 echo "This is not a GIT checkout but module content appears to" 926 echo "be missing. Do not use 'git archive' or GitHub download links" 927 echo "to acquire QEMU source archives. Non-GIT builds are only" 928 echo "supported with source archives linked from:" 929 echo 930 echo " https://www.qemu.org/download/#source" 931 echo 932 echo "Developers working with GIT can use scripts/archive-source.sh" 933 echo "if they need to create valid source archives." 934 fi 935 echo 936 exit 1 937 fi 938 ;; 939 *) 940 echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'" 941 exit 1 942 ;; 943esac 944 945default_target_list="" 946mak_wilds="" 947 948if [ "$linux_user" != no ]; then 949 if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then 950 linux_user=yes 951 elif [ "$linux_user" = yes ]; then 952 error_exit "linux-user not supported on this architecture" 953 fi 954fi 955if [ "$bsd_user" != no ]; then 956 if [ "$bsd_user" = "" ]; then 957 test $targetos = freebsd && bsd_user=yes 958 fi 959 if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then 960 error_exit "bsd-user not supported on this host OS" 961 fi 962fi 963if [ "$softmmu" = "yes" ]; then 964 mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak" 965fi 966if [ "$linux_user" = "yes" ]; then 967 mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak" 968fi 969if [ "$bsd_user" = "yes" ]; then 970 mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak" 971fi 972 973for config in $mak_wilds; do 974 target="$(basename "$config" .mak)" 975 if echo "$target_list_exclude" | grep -vq "$target"; then 976 default_target_list="${default_target_list} $target" 977 fi 978done 979 980if test x"$show_help" = x"yes" ; then 981cat << EOF 982 983Usage: configure [options] 984Options: [defaults in brackets after descriptions] 985 986Standard options: 987 --help print this message 988 --prefix=PREFIX install in PREFIX [$prefix] 989 --target-list=LIST set target list (default: build all) 990$(echo Available targets: $default_target_list | \ 991 fold -s -w 53 | sed -e 's/^/ /') 992 --target-list-exclude=LIST exclude a set of targets from the default target-list 993 994Advanced options (experts only): 995 --cross-prefix=PREFIX use PREFIX for compile tools, PREFIX can be blank [$cross_prefix] 996 --cc=CC use C compiler CC [$cc] 997 --host-cc=CC use C compiler CC [$host_cc] for code run at 998 build time 999 --cxx=CXX use C++ compiler CXX [$cxx] 1000 --objcc=OBJCC use Objective-C compiler OBJCC [$objcc] 1001 --extra-cflags=CFLAGS append extra C compiler flags CFLAGS 1002 --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS 1003 --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS 1004 --extra-ldflags=LDFLAGS append extra linker flags LDFLAGS 1005 --cross-cc-ARCH=CC use compiler when building ARCH guest test cases 1006 --cross-cc-cflags-ARCH= use compiler flags when building ARCH guest tests 1007 --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases 1008 --make=MAKE use specified make [$make] 1009 --python=PYTHON use specified python [$python] 1010 --meson=MESON use specified meson [$meson] 1011 --ninja=NINJA use specified ninja [$ninja] 1012 --smbd=SMBD use specified smbd [$smbd] 1013 --with-git=GIT use specified git [$git] 1014 --with-git-submodules=update update git submodules (default if .git dir exists) 1015 --with-git-submodules=validate fail if git submodules are not up to date 1016 --with-git-submodules=ignore do not update or check git submodules (default if no .git dir) 1017 --static enable static build [$static] 1018 --bindir=PATH install binaries in PATH 1019 --with-suffix=SUFFIX suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix] 1020 --without-default-features default all --enable-* options to "disabled" 1021 --without-default-devices do not include any device that is not needed to 1022 start the emulator (only use if you are including 1023 desired devices in configs/devices/) 1024 --with-devices-ARCH=NAME override default configs/devices 1025 --enable-debug enable common debug build options 1026 --enable-sanitizers enable default sanitizers 1027 --enable-tsan enable thread sanitizer 1028 --disable-werror disable compilation abort on warning 1029 --disable-stack-protector disable compiler-provided stack protection 1030 --cpu=CPU Build for host CPU [$cpu] 1031 --with-coroutine=BACKEND coroutine backend. Supported options: 1032 ucontext, sigaltstack, windows 1033 --enable-plugins 1034 enable plugins via shared library loading 1035 --disable-containers don't use containers for cross-building 1036 --gdb=GDB-path gdb to use for gdbstub tests [$gdb_bin] 1037EOF 1038 meson_options_help 1039cat << EOF 1040 system all system emulation targets 1041 user supported user emulation targets 1042 linux-user all linux usermode emulation targets 1043 bsd-user all BSD usermode emulation targets 1044 pie Position Independent Executables 1045 modules modules support (non-Windows) 1046 debug-tcg TCG debugging (default is disabled) 1047 debug-info debugging information 1048 safe-stack SafeStack Stack Smash Protection. Depends on 1049 clang/llvm and requires coroutine backend ucontext. 1050 1051NOTE: The object files are built at the place where configure is launched 1052EOF 1053exit 0 1054fi 1055 1056# Remove old dependency files to make sure that they get properly regenerated 1057rm -f ./*/config-devices.mak.d 1058 1059if test -z "$python" 1060then 1061 # If first_python is set, there was a binary somewhere even though 1062 # it was not suitable. Use it for the error message. 1063 if test -n "$first_python"; then 1064 error_exit "Cannot use '$first_python', Python >= 3.6 is required." \ 1065 "Use --python=/path/to/python to specify a supported Python." 1066 else 1067 error_exit "Python not found. Use --python=/path/to/python" 1068 fi 1069fi 1070 1071if ! has "$make" 1072then 1073 error_exit "GNU make ($make) not found" 1074fi 1075 1076if ! check_py_version "$python"; then 1077 error_exit "Cannot use '$python', Python >= 3.6 is required." \ 1078 "Use --python=/path/to/python to specify a supported Python." 1079fi 1080 1081# Resolve PATH + suppress writing compiled files 1082python="$(command -v "$python") -B" 1083 1084has_meson() { 1085 local python_dir=$(dirname "$python") 1086 # PEP405: pyvenv.cfg is either adjacent to the Python executable 1087 # or one directory above 1088 if test -f $python_dir/pyvenv.cfg || test -f $python_dir/../pyvenv.cfg; then 1089 # Ensure that Meson and Python come from the same virtual environment 1090 test -x "$python_dir/meson" && 1091 test "$(command -v meson)" -ef "$python_dir/meson" 1092 else 1093 has meson 1094 fi 1095} 1096 1097if test -z "$meson"; then 1098 if test "$explicit_python" = no && has_meson && version_ge "$(meson --version)" 0.61.5; then 1099 meson=meson 1100 elif test "$git_submodules_action" != 'ignore' ; then 1101 meson=git 1102 elif test -e "${source_path}/meson/meson.py" ; then 1103 meson=internal 1104 else 1105 if test "$explicit_python" = yes; then 1106 error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found." 1107 else 1108 error_exit "Meson not found. Use --meson=/path/to/meson" 1109 fi 1110 fi 1111else 1112 # Meson uses its own Python interpreter to invoke other Python scripts, 1113 # but the user wants to use the one they specified with --python. 1114 # 1115 # We do not want to override the distro Python interpreter (and sometimes 1116 # cannot: for example in Homebrew /usr/bin/meson is a bash script), so 1117 # just require --meson=git|internal together with --python. 1118 if test "$explicit_python" = yes; then 1119 case "$meson" in 1120 git | internal) ;; 1121 *) error_exit "--python requires using QEMU's embedded Meson distribution." ;; 1122 esac 1123 fi 1124fi 1125 1126if test "$meson" = git; then 1127 git_submodules="${git_submodules} meson" 1128fi 1129 1130case "$meson" in 1131 git | internal) 1132 meson="$python ${source_path}/meson/meson.py" 1133 ;; 1134 *) meson=$(command -v "$meson") ;; 1135esac 1136 1137# Probe for ninja 1138 1139if test -z "$ninja"; then 1140 for c in ninja ninja-build samu; do 1141 if has $c; then 1142 ninja=$(command -v "$c") 1143 break 1144 fi 1145 done 1146 if test -z "$ninja"; then 1147 error_exit "Cannot find Ninja" 1148 fi 1149fi 1150 1151# Check that the C compiler works. Doing this here before testing 1152# the host CPU ensures that we had a valid CC to autodetect the 1153# $cpu var (and we should bail right here if that's not the case). 1154# It also allows the help message to be printed without a CC. 1155write_c_skeleton; 1156if compile_object ; then 1157 : C compiler works ok 1158else 1159 error_exit "\"$cc\" either does not exist or does not work" 1160fi 1161if ! compile_prog ; then 1162 error_exit "\"$cc\" cannot build an executable (is your linker broken?)" 1163fi 1164 1165# Consult white-list to determine whether to enable werror 1166# by default. Only enable by default for git builds 1167if test -z "$werror" ; then 1168 if test "$git_submodules_action" != "ignore" && \ 1169 { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then 1170 werror="yes" 1171 else 1172 werror="no" 1173 fi 1174fi 1175 1176if test "$targetos" = "bogus"; then 1177 # Now that we know that we're not printing the help and that 1178 # the compiler works (so the results of the check_defines we used 1179 # to identify the OS are reliable), if we didn't recognize the 1180 # host OS we should stop now. 1181 error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')" 1182fi 1183 1184# Check whether the compiler matches our minimum requirements: 1185cat > $TMPC << EOF 1186#if defined(__clang_major__) && defined(__clang_minor__) 1187# ifdef __apple_build_version__ 1188# if __clang_major__ < 12 || (__clang_major__ == 12 && __clang_minor__ < 0) 1189# error You need at least XCode Clang v12.0 to compile QEMU 1190# endif 1191# else 1192# if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0) 1193# error You need at least Clang v10.0 to compile QEMU 1194# endif 1195# endif 1196#elif defined(__GNUC__) && defined(__GNUC_MINOR__) 1197# if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4) 1198# error You need at least GCC v7.4.0 to compile QEMU 1199# endif 1200#else 1201# error You either need GCC or Clang to compiler QEMU 1202#endif 1203int main (void) { return 0; } 1204EOF 1205if ! compile_prog "" "" ; then 1206 error_exit "You need at least GCC v7.4 or Clang v10.0 (or XCode Clang v12.0)" 1207fi 1208 1209# Accumulate -Wfoo and -Wno-bar separately. 1210# We will list all of the enable flags first, and the disable flags second. 1211# Note that we do not add -Werror, because that would enable it for all 1212# configure tests. If a configure test failed due to -Werror this would 1213# just silently disable some features, so it's too error prone. 1214 1215warn_flags= 1216add_to warn_flags -Wundef 1217add_to warn_flags -Wwrite-strings 1218add_to warn_flags -Wmissing-prototypes 1219add_to warn_flags -Wstrict-prototypes 1220add_to warn_flags -Wredundant-decls 1221add_to warn_flags -Wold-style-declaration 1222add_to warn_flags -Wold-style-definition 1223add_to warn_flags -Wtype-limits 1224add_to warn_flags -Wformat-security 1225add_to warn_flags -Wformat-y2k 1226add_to warn_flags -Winit-self 1227add_to warn_flags -Wignored-qualifiers 1228add_to warn_flags -Wempty-body 1229add_to warn_flags -Wnested-externs 1230add_to warn_flags -Wendif-labels 1231add_to warn_flags -Wexpansion-to-defined 1232add_to warn_flags -Wimplicit-fallthrough=2 1233add_to warn_flags -Wmissing-format-attribute 1234 1235if test "$targetos" != "darwin"; then 1236 add_to warn_flags -Wthread-safety 1237fi 1238 1239nowarn_flags= 1240add_to nowarn_flags -Wno-initializer-overrides 1241add_to nowarn_flags -Wno-missing-include-dirs 1242add_to nowarn_flags -Wno-shift-negative-value 1243add_to nowarn_flags -Wno-string-plus-int 1244add_to nowarn_flags -Wno-typedef-redefinition 1245add_to nowarn_flags -Wno-tautological-type-limit-compare 1246add_to nowarn_flags -Wno-psabi 1247add_to nowarn_flags -Wno-gnu-variable-sized-type-not-at-end 1248 1249gcc_flags="$warn_flags $nowarn_flags" 1250 1251cc_has_warning_flag() { 1252 write_c_skeleton; 1253 1254 # Use the positive sense of the flag when testing for -Wno-wombat 1255 # support (gcc will happily accept the -Wno- form of unknown 1256 # warning options). 1257 optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')" 1258 compile_prog "-Werror $optflag" "" 1259} 1260 1261objcc_has_warning_flag() { 1262 cat > $TMPM <<EOF 1263int main(void) { return 0; } 1264EOF 1265 1266 # Use the positive sense of the flag when testing for -Wno-wombat 1267 # support (gcc will happily accept the -Wno- form of unknown 1268 # warning options). 1269 optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')" 1270 do_objc -Werror $optflag \ 1271 $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \ 1272 -o $TMPE $TMPM $QEMU_LDFLAGS 1273} 1274 1275for flag in $gcc_flags; do 1276 if cc_has_warning_flag $flag ; then 1277 QEMU_CFLAGS="$QEMU_CFLAGS $flag" 1278 fi 1279 if objcc_has_warning_flag $flag ; then 1280 QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag" 1281 fi 1282done 1283 1284if test "$stack_protector" != "no"; then 1285 cat > $TMPC << EOF 1286int main(int argc, char *argv[]) 1287{ 1288 char arr[64], *p = arr, *c = argv[argc - 1]; 1289 while (*c) { 1290 *p++ = *c++; 1291 } 1292 return 0; 1293} 1294EOF 1295 gcc_flags="-fstack-protector-strong -fstack-protector-all" 1296 sp_on=0 1297 for flag in $gcc_flags; do 1298 # We need to check both a compile and a link, since some compiler 1299 # setups fail only on a .c->.o compile and some only at link time 1300 if compile_object "-Werror $flag" && 1301 compile_prog "-Werror $flag" ""; then 1302 QEMU_CFLAGS="$QEMU_CFLAGS $flag" 1303 QEMU_LDFLAGS="$QEMU_LDFLAGS $flag" 1304 sp_on=1 1305 break 1306 fi 1307 done 1308 if test "$stack_protector" = yes; then 1309 if test $sp_on = 0; then 1310 error_exit "Stack protector not supported" 1311 fi 1312 fi 1313fi 1314 1315# Our module code doesn't support Windows 1316if test "$modules" = "yes" && test "$mingw32" = "yes" ; then 1317 error_exit "Modules are not available for Windows" 1318fi 1319 1320# Static linking is not possible with plugins, modules or PIE 1321if test "$static" = "yes" ; then 1322 if test "$modules" = "yes" ; then 1323 error_exit "static and modules are mutually incompatible" 1324 fi 1325 if test "$plugins" = "yes"; then 1326 error_exit "static and plugins are mutually incompatible" 1327 else 1328 plugins="no" 1329 fi 1330fi 1331test "$plugins" = "" && plugins=yes 1332 1333cat > $TMPC << EOF 1334 1335#ifdef __linux__ 1336# define THREAD __thread 1337#else 1338# define THREAD 1339#endif 1340static THREAD int tls_var; 1341int main(void) { return tls_var; } 1342EOF 1343 1344# Meson currently only handles pie as a boolean for now so if we have 1345# explicitly disabled PIE we need to extend our cflags because it wont. 1346if test "$static" = "yes"; then 1347 if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then 1348 CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS" 1349 pie="yes" 1350 elif test "$pie" = "yes"; then 1351 error_exit "-static-pie not available due to missing toolchain support" 1352 else 1353 pie="no" 1354 QEMU_CFLAGS="-fno-pie $QEMU_CFLAGS" 1355 fi 1356elif test "$pie" = "no"; then 1357 if compile_prog "-Werror -fno-pie" "-no-pie"; then 1358 CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS" 1359 CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS" 1360 QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS" 1361 fi 1362elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then 1363 CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS" 1364 CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS" 1365 pie="yes" 1366elif test "$pie" = "yes"; then 1367 error_exit "PIE not available due to missing toolchain support" 1368else 1369 echo "Disabling PIE due to missing toolchain support" 1370 pie="no" 1371fi 1372 1373########################################## 1374# __sync_fetch_and_and requires at least -march=i486. Many toolchains 1375# use i686 as default anyway, but for those that don't, an explicit 1376# specification is necessary 1377 1378if test "$cpu" = "i386"; then 1379 cat > $TMPC << EOF 1380static int sfaa(int *ptr) 1381{ 1382 return __sync_fetch_and_and(ptr, 0); 1383} 1384 1385int main(void) 1386{ 1387 int val = 42; 1388 val = __sync_val_compare_and_swap(&val, 0, 1); 1389 sfaa(&val); 1390 return val; 1391} 1392EOF 1393 if ! compile_prog "" "" ; then 1394 QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS" 1395 fi 1396fi 1397 1398if test -z "${target_list+xxx}" ; then 1399 default_targets=yes 1400 for target in $default_target_list; do 1401 target_list="$target_list $target" 1402 done 1403 target_list="${target_list# }" 1404else 1405 default_targets=no 1406 target_list=$(echo "$target_list" | sed -e 's/,/ /g') 1407 for target in $target_list; do 1408 # Check that we recognised the target name; this allows a more 1409 # friendly error message than if we let it fall through. 1410 case " $default_target_list " in 1411 *" $target "*) 1412 ;; 1413 *) 1414 error_exit "Unknown target name '$target'" 1415 ;; 1416 esac 1417 done 1418fi 1419 1420# see if system emulation was really requested 1421case " $target_list " in 1422 *"-softmmu "*) softmmu=yes 1423 ;; 1424 *) softmmu=no 1425 ;; 1426esac 1427 1428if test "$tcg" = "auto"; then 1429 if test -z "$target_list"; then 1430 tcg="disabled" 1431 else 1432 tcg="enabled" 1433 fi 1434fi 1435 1436if test "$tcg" = "enabled"; then 1437 git_submodules="$git_submodules tests/fp/berkeley-testfloat-3" 1438 git_submodules="$git_submodules tests/fp/berkeley-softfloat-3" 1439fi 1440 1441########################################## 1442# big/little endian test 1443cat > $TMPC << EOF 1444#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1445# error LITTLE 1446#endif 1447int main(void) { return 0; } 1448EOF 1449 1450if ! compile_prog ; then 1451 bigendian="no" 1452else 1453 cat > $TMPC << EOF 1454#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1455# error BIG 1456#endif 1457int main(void) { return 0; } 1458EOF 1459 1460 if ! compile_prog ; then 1461 bigendian="yes" 1462 else 1463 echo big/little test failed 1464 exit 1 1465 fi 1466fi 1467 1468########################################## 1469# pkg-config probe 1470 1471if ! has "$pkg_config_exe"; then 1472 error_exit "pkg-config binary '$pkg_config_exe' not found" 1473fi 1474 1475########################################## 1476# glib support probe 1477 1478# When bumping glib_req_ver, please check also whether we should increase 1479# the _WIN32_WINNT setting in osdep.h according to the value from glib 1480glib_req_ver=2.56 1481glib_modules=gthread-2.0 1482if test "$modules" = yes; then 1483 glib_modules="$glib_modules gmodule-export-2.0" 1484elif test "$plugins" = "yes"; then 1485 glib_modules="$glib_modules gmodule-no-export-2.0" 1486fi 1487 1488for i in $glib_modules; do 1489 if $pkg_config --atleast-version=$glib_req_ver $i; then 1490 glib_cflags=$($pkg_config --cflags $i) 1491 glib_libs=$($pkg_config --libs $i) 1492 else 1493 error_exit "glib-$glib_req_ver $i is required to compile QEMU" 1494 fi 1495done 1496 1497glib_bindir="$($pkg_config --variable=bindir glib-2.0)" 1498if test -z "$glib_bindir" ; then 1499 glib_bindir="$($pkg_config --variable=prefix glib-2.0)"/bin 1500fi 1501 1502# This workaround is required due to a bug in pkg-config file for glib as it 1503# doesn't define GLIB_STATIC_COMPILATION for pkg-config --static 1504 1505if test "$static" = yes && test "$mingw32" = yes; then 1506 glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags" 1507fi 1508 1509# Sanity check that the current size_t matches the 1510# size that glib thinks it should be. This catches 1511# problems on multi-arch where people try to build 1512# 32-bit QEMU while pointing at 64-bit glib headers 1513cat > $TMPC <<EOF 1514#include <glib.h> 1515#include <unistd.h> 1516 1517#define QEMU_BUILD_BUG_ON(x) \ 1518 typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused)); 1519 1520int main(void) { 1521 QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T); 1522 return 0; 1523} 1524EOF 1525 1526if ! compile_prog "$glib_cflags" "$glib_libs" ; then 1527 error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\ 1528 "You probably need to set PKG_CONFIG_LIBDIR"\ 1529 "to point to the right pkg-config files for your"\ 1530 "build target" 1531fi 1532 1533# Silence clang warnings triggered by glib < 2.57.2 1534cat > $TMPC << EOF 1535#include <glib.h> 1536typedef struct Foo { 1537 int i; 1538} Foo; 1539static void foo_free(Foo *f) 1540{ 1541 g_free(f); 1542} 1543G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free) 1544int main(void) { return 0; } 1545EOF 1546if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then 1547 if cc_has_warning_flag "-Wno-unused-function"; then 1548 glib_cflags="$glib_cflags -Wno-unused-function" 1549 CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function" 1550 fi 1551fi 1552 1553########################################## 1554# fdt probe 1555 1556case "$fdt" in 1557 auto | enabled | internal) 1558 # Simpler to always update submodule, even if not needed. 1559 git_submodules="${git_submodules} dtc" 1560 ;; 1561esac 1562 1563########################################## 1564# check and set a backend for coroutine 1565 1566# We prefer ucontext, but it's not always possible. The fallback 1567# is sigcontext. On Windows the only valid backend is the Windows 1568# specific one. 1569 1570ucontext_works=no 1571if test "$darwin" != "yes"; then 1572 cat > $TMPC << EOF 1573#include <ucontext.h> 1574#ifdef __stub_makecontext 1575#error Ignoring glibc stub makecontext which will always fail 1576#endif 1577int main(void) { makecontext(0, 0, 0); return 0; } 1578EOF 1579 if compile_prog "" "" ; then 1580 ucontext_works=yes 1581 fi 1582fi 1583 1584if test "$coroutine" = ""; then 1585 if test "$mingw32" = "yes"; then 1586 coroutine=win32 1587 elif test "$ucontext_works" = "yes"; then 1588 coroutine=ucontext 1589 else 1590 coroutine=sigaltstack 1591 fi 1592else 1593 case $coroutine in 1594 windows) 1595 if test "$mingw32" != "yes"; then 1596 error_exit "'windows' coroutine backend only valid for Windows" 1597 fi 1598 # Unfortunately the user visible backend name doesn't match the 1599 # coroutine-*.c filename for this case, so we have to adjust it here. 1600 coroutine=win32 1601 ;; 1602 ucontext) 1603 if test "$ucontext_works" != "yes"; then 1604 error_exit "'ucontext' backend requested but makecontext not available" 1605 fi 1606 ;; 1607 sigaltstack) 1608 if test "$mingw32" = "yes"; then 1609 error_exit "only the 'windows' coroutine backend is valid for Windows" 1610 fi 1611 ;; 1612 *) 1613 error_exit "unknown coroutine backend $coroutine" 1614 ;; 1615 esac 1616fi 1617 1618################################################## 1619# SafeStack 1620 1621 1622if test "$safe_stack" = "yes"; then 1623cat > $TMPC << EOF 1624int main(void) 1625{ 1626#if ! __has_feature(safe_stack) 1627#error SafeStack Disabled 1628#endif 1629 return 0; 1630} 1631EOF 1632 flag="-fsanitize=safe-stack" 1633 # Check that safe-stack is supported and enabled. 1634 if compile_prog "-Werror $flag" "$flag"; then 1635 # Flag needed both at compilation and at linking 1636 QEMU_CFLAGS="$QEMU_CFLAGS $flag" 1637 QEMU_LDFLAGS="$QEMU_LDFLAGS $flag" 1638 else 1639 error_exit "SafeStack not supported by your compiler" 1640 fi 1641 if test "$coroutine" != "ucontext"; then 1642 error_exit "SafeStack is only supported by the coroutine backend ucontext" 1643 fi 1644else 1645cat > $TMPC << EOF 1646int main(void) 1647{ 1648#if defined(__has_feature) 1649#if __has_feature(safe_stack) 1650#error SafeStack Enabled 1651#endif 1652#endif 1653 return 0; 1654} 1655EOF 1656if test "$safe_stack" = "no"; then 1657 # Make sure that safe-stack is disabled 1658 if ! compile_prog "-Werror" ""; then 1659 # SafeStack was already enabled, try to explicitly remove the feature 1660 flag="-fno-sanitize=safe-stack" 1661 if ! compile_prog "-Werror $flag" "$flag"; then 1662 error_exit "Configure cannot disable SafeStack" 1663 fi 1664 QEMU_CFLAGS="$QEMU_CFLAGS $flag" 1665 QEMU_LDFLAGS="$QEMU_LDFLAGS $flag" 1666 fi 1667else # "$safe_stack" = "" 1668 # Set safe_stack to yes or no based on pre-existing flags 1669 if compile_prog "-Werror" ""; then 1670 safe_stack="no" 1671 else 1672 safe_stack="yes" 1673 if test "$coroutine" != "ucontext"; then 1674 error_exit "SafeStack is only supported by the coroutine backend ucontext" 1675 fi 1676 fi 1677fi 1678fi 1679 1680######################################## 1681# check if ccache is interfering with 1682# semantic analysis of macros 1683 1684unset CCACHE_CPP2 1685ccache_cpp2=no 1686cat > $TMPC << EOF 1687static const int Z = 1; 1688#define fn() ({ Z; }) 1689#define TAUT(X) ((X) == Z) 1690#define PAREN(X, Y) (X == Y) 1691#define ID(X) (X) 1692int main(void) 1693{ 1694 int x = 0, y = 0; 1695 x = ID(x); 1696 x = fn(); 1697 fn(); 1698 if (PAREN(x, y)) return 0; 1699 if (TAUT(Z)) return 0; 1700 return 0; 1701} 1702EOF 1703 1704if ! compile_object "-Werror"; then 1705 ccache_cpp2=yes 1706fi 1707 1708################################################# 1709# clang does not support glibc + FORTIFY_SOURCE. 1710 1711if test "$fortify_source" != "no"; then 1712 if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then 1713 fortify_source="no"; 1714 elif test -n "$cxx" && has $cxx && 1715 echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then 1716 fortify_source="no"; 1717 else 1718 fortify_source="yes" 1719 fi 1720fi 1721 1722########################################## 1723# checks for sanitizers 1724 1725have_asan=no 1726have_ubsan=no 1727have_asan_iface_h=no 1728have_asan_iface_fiber=no 1729 1730if test "$sanitizers" = "yes" ; then 1731 write_c_skeleton 1732 if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then 1733 have_asan=yes 1734 fi 1735 1736 # we could use a simple skeleton for flags checks, but this also 1737 # detect the static linking issue of ubsan, see also: 1738 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285 1739 cat > $TMPC << EOF 1740#include <stdlib.h> 1741int main(void) { 1742 void *tmp = malloc(10); 1743 if (tmp != NULL) { 1744 return *(int *)(tmp + 2); 1745 } 1746 return 1; 1747} 1748EOF 1749 if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then 1750 have_ubsan=yes 1751 fi 1752 1753 if check_include "sanitizer/asan_interface.h" ; then 1754 have_asan_iface_h=yes 1755 fi 1756 1757 cat > $TMPC << EOF 1758#include <sanitizer/asan_interface.h> 1759int main(void) { 1760 __sanitizer_start_switch_fiber(0, 0, 0); 1761 return 0; 1762} 1763EOF 1764 if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then 1765 have_asan_iface_fiber=yes 1766 fi 1767fi 1768 1769# Thread sanitizer is, for now, much noisier than the other sanitizers; 1770# keep it separate until that is not the case. 1771if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then 1772 error_exit "TSAN is not supported with other sanitiziers." 1773fi 1774have_tsan=no 1775have_tsan_iface_fiber=no 1776if test "$tsan" = "yes" ; then 1777 write_c_skeleton 1778 if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then 1779 have_tsan=yes 1780 fi 1781 cat > $TMPC << EOF 1782#include <sanitizer/tsan_interface.h> 1783int main(void) { 1784 __tsan_create_fiber(0); 1785 return 0; 1786} 1787EOF 1788 if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then 1789 have_tsan_iface_fiber=yes 1790 fi 1791fi 1792 1793########################################## 1794# functions to probe cross compilers 1795 1796container="no" 1797runc="" 1798if test $use_containers = "yes" && (has "docker" || has "podman"); then 1799 case $($python "$source_path"/tests/docker/docker.py probe) in 1800 *docker) container=docker ;; 1801 podman) container=podman ;; 1802 no) container=no ;; 1803 esac 1804 if test "$container" != "no"; then 1805 docker_py="$python $source_path/tests/docker/docker.py --engine $container" 1806 runc=$($python "$source_path"/tests/docker/docker.py probe) 1807 fi 1808fi 1809 1810# cross compilers defaults, can be overridden with --cross-cc-ARCH 1811: ${cross_prefix_aarch64="aarch64-linux-gnu-"} 1812: ${cross_prefix_aarch64_be="$cross_prefix_aarch64"} 1813: ${cross_prefix_alpha="alpha-linux-gnu-"} 1814: ${cross_prefix_arm="arm-linux-gnueabihf-"} 1815: ${cross_prefix_armeb="$cross_prefix_arm"} 1816: ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"} 1817: ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"} 1818: ${cross_prefix_hppa="hppa-linux-gnu-"} 1819: ${cross_prefix_i386="i686-linux-gnu-"} 1820: ${cross_prefix_m68k="m68k-linux-gnu-"} 1821: ${cross_prefix_microblaze="microblaze-linux-musl-"} 1822: ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"} 1823: ${cross_prefix_mips64="mips64-linux-gnuabi64-"} 1824: ${cross_prefix_mipsel="mipsel-linux-gnu-"} 1825: ${cross_prefix_mips="mips-linux-gnu-"} 1826: ${cross_prefix_nios2="nios2-linux-gnu-"} 1827: ${cross_prefix_ppc="powerpc-linux-gnu-"} 1828: ${cross_prefix_ppc64="powerpc64-linux-gnu-"} 1829: ${cross_prefix_ppc64le="$cross_prefix_ppc64"} 1830: ${cross_prefix_riscv64="riscv64-linux-gnu-"} 1831: ${cross_prefix_s390x="s390x-linux-gnu-"} 1832: ${cross_prefix_sh4="sh4-linux-gnu-"} 1833: ${cross_prefix_sparc64="sparc64-linux-gnu-"} 1834: ${cross_prefix_sparc="$cross_prefix_sparc64"} 1835: ${cross_prefix_x86_64="x86_64-linux-gnu-"} 1836 1837: ${cross_cc_aarch64_be="$cross_cc_aarch64"} 1838: ${cross_cc_cflags_aarch64_be="-mbig-endian"} 1839: ${cross_cc_armeb="$cross_cc_arm"} 1840: ${cross_cc_cflags_armeb="-mbig-endian"} 1841: ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"} 1842: ${cross_cc_cflags_hexagon="-mv67 -O2 -static"} 1843: ${cross_cc_cflags_i386="-m32"} 1844: ${cross_cc_cflags_ppc="-m32 -mbig-endian"} 1845: ${cross_cc_cflags_ppc64="-m64 -mbig-endian"} 1846: ${cross_cc_ppc64le="$cross_cc_ppc64"} 1847: ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"} 1848: ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"} 1849: ${cross_cc_sparc="$cross_cc_sparc64"} 1850: ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"} 1851: ${cross_cc_cflags_x86_64="-m64"} 1852 1853compute_target_variable() { 1854 eval "$2=" 1855 if eval test -n "\"\${cross_prefix_$1}\""; then 1856 if eval has "\"\${cross_prefix_$1}\$3\""; then 1857 eval "$2=\"\${cross_prefix_$1}\$3\"" 1858 fi 1859 fi 1860} 1861 1862have_target() { 1863 for i; do 1864 case " $target_list " in 1865 *" $i "*) return 0;; 1866 *) ;; 1867 esac 1868 done 1869 return 1 1870} 1871 1872# probe_target_compiler TARGET 1873# 1874# Look for a compiler for the given target, either native or cross. 1875# Set variables target_* if a compiler is found, and container_cross_* 1876# if a Docker-based cross-compiler image is known for the target. 1877# Set got_cross_cc to yes/no depending on whether a non-container-based 1878# compiler was found. 1879# 1880# If TARGET is a user-mode emulation target, also set build_static to 1881# "y" if static linking is possible. 1882# 1883probe_target_compiler() { 1884 # reset all output variables 1885 got_cross_cc=no 1886 container_image= 1887 container_hosts= 1888 container_cross_cc= 1889 container_cross_ar= 1890 container_cross_as= 1891 container_cross_ld= 1892 container_cross_nm= 1893 container_cross_objcopy= 1894 container_cross_ranlib= 1895 container_cross_strip= 1896 1897 # We shall skip configuring the target compiler if the user didn't 1898 # bother enabling an appropriate guest. This avoids building 1899 # extraneous firmware images and tests. 1900 if test "${target_list#*$1}" = "$1"; then 1901 return 1 1902 fi 1903 1904 target_arch=${1%%-*} 1905 case $target_arch in 1906 aarch64) container_hosts="x86_64 aarch64" ;; 1907 alpha) container_hosts=x86_64 ;; 1908 arm) container_hosts="x86_64 aarch64" ;; 1909 cris) container_hosts=x86_64 ;; 1910 hexagon) container_hosts=x86_64 ;; 1911 hppa) container_hosts=x86_64 ;; 1912 i386) container_hosts=x86_64 ;; 1913 loongarch64) container_hosts=x86_64 ;; 1914 m68k) container_hosts=x86_64 ;; 1915 microblaze) container_hosts=x86_64 ;; 1916 mips64el) container_hosts=x86_64 ;; 1917 mips64) container_hosts=x86_64 ;; 1918 mipsel) container_hosts=x86_64 ;; 1919 mips) container_hosts=x86_64 ;; 1920 nios2) container_hosts=x86_64 ;; 1921 ppc) container_hosts=x86_64 ;; 1922 ppc64|ppc64le) container_hosts=x86_64 ;; 1923 riscv64) container_hosts=x86_64 ;; 1924 s390x) container_hosts=x86_64 ;; 1925 sh4) container_hosts=x86_64 ;; 1926 sparc64) container_hosts=x86_64 ;; 1927 tricore) container_hosts=x86_64 ;; 1928 x86_64) container_hosts="aarch64 ppc64el x86_64" ;; 1929 xtensa*) container_hosts=x86_64 ;; 1930 esac 1931 1932 for host in $container_hosts; do 1933 test "$container" != no || continue 1934 test "$host" = "$cpu" || continue 1935 case $target_arch in 1936 aarch64) 1937 # We don't have any bigendian build tools so we only use this for AArch64 1938 container_image=debian-arm64-cross 1939 container_cross_prefix=aarch64-linux-gnu- 1940 container_cross_cc=${container_cross_prefix}gcc-10 1941 ;; 1942 alpha) 1943 container_image=debian-alpha-cross 1944 container_cross_prefix=alpha-linux-gnu- 1945 ;; 1946 arm) 1947 # We don't have any bigendian build tools so we only use this for ARM 1948 container_image=debian-armhf-cross 1949 container_cross_prefix=arm-linux-gnueabihf- 1950 ;; 1951 cris) 1952 container_image=fedora-cris-cross 1953 container_cross_prefix=cris-linux-gnu- 1954 ;; 1955 hexagon) 1956 container_image=debian-hexagon-cross 1957 container_cross_prefix=hexagon-unknown-linux-musl- 1958 container_cross_cc=${container_cross_prefix}clang 1959 ;; 1960 hppa) 1961 container_image=debian-hppa-cross 1962 container_cross_prefix=hppa-linux-gnu- 1963 ;; 1964 i386) 1965 container_image=fedora-i386-cross 1966 container_cross_prefix= 1967 ;; 1968 loongarch64) 1969 container_image=debian-loongarch-cross 1970 container_cross_prefix=loongarch64-unknown-linux-gnu- 1971 ;; 1972 m68k) 1973 container_image=debian-m68k-cross 1974 container_cross_prefix=m68k-linux-gnu- 1975 ;; 1976 microblaze) 1977 container_image=debian-microblaze-cross 1978 container_cross_prefix=microblaze-linux-musl- 1979 ;; 1980 mips64el) 1981 container_image=debian-mips64el-cross 1982 container_cross_prefix=mips64el-linux-gnuabi64- 1983 ;; 1984 mips64) 1985 container_image=debian-mips64-cross 1986 container_cross_prefix=mips64-linux-gnuabi64- 1987 ;; 1988 mipsel) 1989 container_image=debian-mipsel-cross 1990 container_cross_prefix=mipsel-linux-gnu- 1991 ;; 1992 mips) 1993 container_image=debian-mips-cross 1994 container_cross_prefix=mips-linux-gnu- 1995 ;; 1996 nios2) 1997 container_image=debian-nios2-cross 1998 container_cross_prefix=nios2-linux-gnu- 1999 ;; 2000 ppc) 2001 container_image=debian-powerpc-test-cross 2002 container_cross_prefix=powerpc-linux-gnu- 2003 container_cross_cc=${container_cross_prefix}gcc-10 2004 ;; 2005 ppc64|ppc64le) 2006 container_image=debian-powerpc-test-cross 2007 container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu- 2008 container_cross_cc=${container_cross_prefix}gcc-10 2009 ;; 2010 riscv64) 2011 container_image=debian-riscv64-test-cross 2012 container_cross_prefix=riscv64-linux-gnu- 2013 ;; 2014 s390x) 2015 container_image=debian-s390x-cross 2016 container_cross_prefix=s390x-linux-gnu- 2017 ;; 2018 sh4) 2019 container_image=debian-sh4-cross 2020 container_cross_prefix=sh4-linux-gnu- 2021 ;; 2022 sparc64) 2023 container_image=debian-sparc64-cross 2024 container_cross_prefix=sparc64-linux-gnu- 2025 ;; 2026 tricore) 2027 container_image=debian-tricore-cross 2028 container_cross_prefix=tricore- 2029 container_cross_as=tricore-as 2030 container_cross_ld=tricore-ld 2031 break 2032 ;; 2033 x86_64) 2034 container_image=debian-amd64-cross 2035 container_cross_prefix=x86_64-linux-gnu- 2036 ;; 2037 xtensa*) 2038 container_hosts=x86_64 2039 container_image=debian-xtensa-cross 2040 2041 # default to the dc232b cpu 2042 container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf- 2043 ;; 2044 esac 2045 : ${container_cross_cc:=${container_cross_prefix}gcc} 2046 : ${container_cross_ar:=${container_cross_prefix}ar} 2047 : ${container_cross_as:=${container_cross_prefix}as} 2048 : ${container_cross_ld:=${container_cross_prefix}ld} 2049 : ${container_cross_nm:=${container_cross_prefix}nm} 2050 : ${container_cross_objcopy:=${container_cross_prefix}objcopy} 2051 : ${container_cross_ranlib:=${container_cross_prefix}ranlib} 2052 : ${container_cross_strip:=${container_cross_prefix}strip} 2053 done 2054 2055 try=cross 2056 case "$target_arch:$cpu" in 2057 aarch64_be:aarch64 | \ 2058 armeb:arm | \ 2059 i386:x86_64 | \ 2060 mips*:mips64 | \ 2061 ppc*:ppc64 | \ 2062 sparc:sparc64 | \ 2063 "$cpu:$cpu") 2064 try='native cross' ;; 2065 esac 2066 eval "target_cflags=\${cross_cc_cflags_$target_arch}" 2067 for thistry in $try; do 2068 case $thistry in 2069 native) 2070 target_cc=$cc 2071 target_ccas=$ccas 2072 target_ar=$ar 2073 target_as=$as 2074 target_ld=$ld 2075 target_nm=$nm 2076 target_objcopy=$objcopy 2077 target_ranlib=$ranlib 2078 target_strip=$strip 2079 ;; 2080 cross) 2081 target_cc= 2082 if eval test -n "\"\${cross_cc_$target_arch}\""; then 2083 if eval has "\"\${cross_cc_$target_arch}\""; then 2084 eval "target_cc=\"\${cross_cc_$target_arch}\"" 2085 fi 2086 else 2087 compute_target_variable $target_arch target_cc gcc 2088 fi 2089 target_ccas=$target_cc 2090 compute_target_variable $target_arch target_ar ar 2091 compute_target_variable $target_arch target_as as 2092 compute_target_variable $target_arch target_ld ld 2093 compute_target_variable $target_arch target_nm nm 2094 compute_target_variable $target_arch target_objcopy objcopy 2095 compute_target_variable $target_arch target_ranlib ranlib 2096 compute_target_variable $target_arch target_strip strip 2097 ;; 2098 esac 2099 2100 if test -n "$target_cc"; then 2101 case $target_arch in 2102 i386|x86_64) 2103 if $target_cc --version | grep -qi "clang"; then 2104 continue 2105 fi 2106 ;; 2107 esac 2108 elif test -n "$target_as" && test -n "$target_ld"; then 2109 # Special handling for assembler only targets 2110 case $target in 2111 tricore-softmmu) 2112 build_static= 2113 got_cross_cc=yes 2114 break 2115 ;; 2116 *) 2117 continue 2118 ;; 2119 esac 2120 else 2121 continue 2122 fi 2123 2124 write_c_skeleton 2125 case $1 in 2126 *-softmmu) 2127 if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC && 2128 do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then 2129 got_cross_cc=yes 2130 break 2131 fi 2132 ;; 2133 *) 2134 if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then 2135 build_static=y 2136 got_cross_cc=yes 2137 break 2138 fi 2139 if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then 2140 build_static= 2141 got_cross_cc=yes 2142 break 2143 fi 2144 ;; 2145 esac 2146 done 2147 if test $got_cross_cc != yes; then 2148 build_static= 2149 target_cc= 2150 target_ccas= 2151 target_ar= 2152 target_as= 2153 target_ld= 2154 target_nm= 2155 target_objcopy= 2156 target_ranlib= 2157 target_strip= 2158 fi 2159 test -n "$target_cc" 2160} 2161 2162write_target_makefile() { 2163 echo "EXTRA_CFLAGS=$target_cflags" 2164 if test -z "$target_cc" && test -z "$target_as"; then 2165 test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?" 2166 echo "$1: docker-image-$container_image" >> Makefile.prereqs 2167 if test -n "$container_cross_cc"; then 2168 echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --" 2169 echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --" 2170 fi 2171 echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --" 2172 echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --" 2173 echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --" 2174 echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --" 2175 echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --" 2176 echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --" 2177 echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --" 2178 else 2179 if test -n "$target_cc"; then 2180 echo "CC=$target_cc" 2181 echo "CCAS=$target_ccas" 2182 fi 2183 if test -n "$target_ar"; then 2184 echo "AR=$target_ar" 2185 fi 2186 if test -n "$target_as"; then 2187 echo "AS=$target_as" 2188 fi 2189 if test -n "$target_ld"; then 2190 echo "LD=$target_ld" 2191 fi 2192 if test -n "$target_nm"; then 2193 echo "NM=$target_nm" 2194 fi 2195 if test -n "$target_objcopy"; then 2196 echo "OBJCOPY=$target_objcopy" 2197 fi 2198 if test -n "$target_ranlib"; then 2199 echo "RANLIB=$target_ranlib" 2200 fi 2201 if test -n "$target_strip"; then 2202 echo "STRIP=$target_strip" 2203 fi 2204 fi 2205} 2206 2207########################################## 2208# check for vfio_user_server 2209 2210case "$vfio_user_server" in 2211 enabled ) 2212 if test "$git_submodules_action" != "ignore"; then 2213 git_submodules="${git_submodules} subprojects/libvfio-user" 2214 fi 2215 ;; 2216esac 2217 2218########################################## 2219# End of CC checks 2220# After here, no more $cc or $ld runs 2221 2222write_c_skeleton 2223 2224if test "$fortify_source" = "yes" ; then 2225 QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS" 2226fi 2227 2228if test "$have_asan" = "yes"; then 2229 QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS" 2230 QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS" 2231 if test "$have_asan_iface_h" = "no" ; then 2232 echo "ASAN build enabled, but ASAN header missing." \ 2233 "Without code annotation, the report may be inferior." 2234 elif test "$have_asan_iface_fiber" = "no" ; then 2235 echo "ASAN build enabled, but ASAN header is too old." \ 2236 "Without code annotation, the report may be inferior." 2237 fi 2238fi 2239if test "$have_tsan" = "yes" ; then 2240 if test "$have_tsan_iface_fiber" = "yes" ; then 2241 QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS" 2242 QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS" 2243 else 2244 error_exit "Cannot enable TSAN due to missing fiber annotation interface." 2245 fi 2246elif test "$tsan" = "yes" ; then 2247 error_exit "Cannot enable TSAN due to missing sanitize thread interface." 2248fi 2249if test "$have_ubsan" = "yes"; then 2250 QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS" 2251 QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS" 2252fi 2253 2254####################################### 2255# cross-compiled firmware targets 2256 2257# Set up build tree symlinks that point back into the source tree 2258# (these can be both files and directories). 2259# Caution: avoid adding files or directories here using wildcards. This 2260# will result in problems later if a new file matching the wildcard is 2261# added to the source tree -- nothing will cause configure to be rerun 2262# so the build tree will be missing the link back to the new file, and 2263# tests might fail. Prefer to keep the relevant files in their own 2264# directory and symlink the directory instead. 2265LINKS="Makefile" 2266LINKS="$LINKS pc-bios/optionrom/Makefile" 2267LINKS="$LINKS pc-bios/s390-ccw/Makefile" 2268LINKS="$LINKS pc-bios/vof/Makefile" 2269LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit 2270LINKS="$LINKS tests/avocado tests/data" 2271LINKS="$LINKS tests/qemu-iotests/check" 2272LINKS="$LINKS python" 2273LINKS="$LINKS contrib/plugins/Makefile " 2274for f in $LINKS ; do 2275 if [ -e "$source_path/$f" ]; then 2276 mkdir -p "$(dirname ./"$f")" 2277 symlink "$source_path/$f" "$f" 2278 fi 2279done 2280 2281echo "# Automatically generated by configure - do not modify" > Makefile.prereqs 2282 2283# Mac OS X ships with a broken assembler 2284roms= 2285if have_target i386-softmmu x86_64-softmmu && \ 2286 test "$targetos" != "darwin" && test "$targetos" != "sunos" && \ 2287 test "$targetos" != "haiku" && \ 2288 probe_target_compiler i386-softmmu; then 2289 roms="pc-bios/optionrom" 2290 config_mak=pc-bios/optionrom/config.mak 2291 echo "# Automatically generated by configure - do not modify" > $config_mak 2292 echo "TOPSRC_DIR=$source_path" >> $config_mak 2293 write_target_makefile >> $config_mak 2294fi 2295 2296if have_target ppc-softmmu ppc64-softmmu && \ 2297 probe_target_compiler ppc-softmmu; then 2298 roms="$roms pc-bios/vof" 2299 config_mak=pc-bios/vof/config.mak 2300 echo "# Automatically generated by configure - do not modify" > $config_mak 2301 echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak 2302 write_target_makefile >> $config_mak 2303fi 2304 2305# Only build s390-ccw bios if the compiler has -march=z900 or -march=z10 2306# (which is the lowest architecture level that Clang supports) 2307if have_target s390x-softmmu && probe_target_compiler s390x-softmmu; then 2308 write_c_skeleton 2309 do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC 2310 has_z900=$? 2311 if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then 2312 if [ $has_z900 != 0 ]; then 2313 echo "WARNING: Your compiler does not support the z900!" 2314 echo " The s390-ccw bios will only work with guest CPUs >= z10." 2315 fi 2316 roms="$roms pc-bios/s390-ccw" 2317 config_mak=pc-bios/s390-ccw/config-host.mak 2318 echo "# Automatically generated by configure - do not modify" > $config_mak 2319 echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak 2320 write_target_makefile >> $config_mak 2321 # SLOF is required for building the s390-ccw firmware on s390x, 2322 # since it is using the libnet code from SLOF for network booting. 2323 git_submodules="${git_submodules} roms/SLOF" 2324 fi 2325fi 2326 2327####################################### 2328# generate config-host.mak 2329 2330if ! (GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then 2331 exit 1 2332fi 2333 2334config_host_mak="config-host.mak" 2335 2336echo "# Automatically generated by configure - do not modify" > $config_host_mak 2337echo >> $config_host_mak 2338 2339echo all: >> $config_host_mak 2340echo "GIT=$git" >> $config_host_mak 2341echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak 2342echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak 2343 2344if test "$debug_tcg" = "yes" ; then 2345 echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak 2346fi 2347if test "$mingw32" = "yes" ; then 2348 echo "CONFIG_WIN32=y" >> $config_host_mak 2349 echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak 2350 echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak 2351 echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak 2352else 2353 echo "CONFIG_POSIX=y" >> $config_host_mak 2354fi 2355 2356if test "$linux" = "yes" ; then 2357 echo "CONFIG_LINUX=y" >> $config_host_mak 2358fi 2359 2360if test "$darwin" = "yes" ; then 2361 echo "CONFIG_DARWIN=y" >> $config_host_mak 2362fi 2363 2364if test "$solaris" = "yes" ; then 2365 echo "CONFIG_SOLARIS=y" >> $config_host_mak 2366fi 2367if test "$static" = "yes" ; then 2368 echo "CONFIG_STATIC=y" >> $config_host_mak 2369fi 2370echo "SRC_PATH=$source_path" >> $config_host_mak 2371echo "TARGET_DIRS=$target_list" >> $config_host_mak 2372if test "$modules" = "yes"; then 2373 echo "CONFIG_MODULES=y" >> $config_host_mak 2374fi 2375 2376# XXX: suppress that 2377if [ "$bsd" = "yes" ] ; then 2378 echo "CONFIG_BSD=y" >> $config_host_mak 2379fi 2380 2381echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak 2382 2383if test "$have_asan_iface_fiber" = "yes" ; then 2384 echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak 2385fi 2386 2387if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then 2388 echo "CONFIG_TSAN=y" >> $config_host_mak 2389fi 2390 2391if test "$plugins" = "yes" ; then 2392 echo "CONFIG_PLUGIN=y" >> $config_host_mak 2393fi 2394 2395if test -n "$gdb_bin"; then 2396 gdb_version=$($gdb_bin --version | head -n 1) 2397 if version_ge ${gdb_version##* } 9.1; then 2398 echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak 2399 gdb_arches=$("$source_path/scripts/probe-gdb-support.py" $gdb_bin) 2400 else 2401 gdb_bin="" 2402 fi 2403fi 2404 2405if test "$container" != no; then 2406 echo "ENGINE=$container" >> $config_host_mak 2407 echo "RUNC=$runc" >> $config_host_mak 2408fi 2409echo "ROMS=$roms" >> $config_host_mak 2410echo "MAKE=$make" >> $config_host_mak 2411echo "PYTHON=$python" >> $config_host_mak 2412echo "GENISOIMAGE=$genisoimage" >> $config_host_mak 2413echo "MESON=$meson" >> $config_host_mak 2414echo "NINJA=$ninja" >> $config_host_mak 2415echo "CC=$cc" >> $config_host_mak 2416echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak 2417echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak 2418echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak 2419echo "GLIB_LIBS=$glib_libs" >> $config_host_mak 2420echo "GLIB_BINDIR=$glib_bindir" >> $config_host_mak 2421echo "GLIB_VERSION=$($pkg_config --modversion glib-2.0)" >> $config_host_mak 2422echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak 2423echo "EXESUF=$EXESUF" >> $config_host_mak 2424 2425# use included Linux headers 2426if test "$linux" = "yes" ; then 2427 mkdir -p linux-headers 2428 case "$cpu" in 2429 i386|x86_64) 2430 linux_arch=x86 2431 ;; 2432 ppc|ppc64) 2433 linux_arch=powerpc 2434 ;; 2435 s390x) 2436 linux_arch=s390 2437 ;; 2438 aarch64) 2439 linux_arch=arm64 2440 ;; 2441 loongarch*) 2442 linux_arch=loongarch 2443 ;; 2444 mips64) 2445 linux_arch=mips 2446 ;; 2447 *) 2448 # For most CPUs the kernel architecture name and QEMU CPU name match. 2449 linux_arch="$cpu" 2450 ;; 2451 esac 2452 # For non-KVM architectures we will not have asm headers 2453 if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then 2454 symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm 2455 fi 2456fi 2457 2458for target in $target_list; do 2459 target_dir="$target" 2460 target_name=$(echo $target | cut -d '-' -f 1)$EXESUF 2461 mkdir -p "$target_dir" 2462 case $target in 2463 *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;; 2464 *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;; 2465 esac 2466done 2467 2468if test "$default_targets" = "yes"; then 2469 echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak 2470fi 2471 2472if test "$ccache_cpp2" = "yes"; then 2473 echo "export CCACHE_CPP2=y" >> $config_host_mak 2474fi 2475 2476if test "$safe_stack" = "yes"; then 2477 echo "CONFIG_SAFESTACK=y" >> $config_host_mak 2478fi 2479 2480# tests/tcg configuration 2481(config_host_mak=tests/tcg/config-host.mak 2482mkdir -p tests/tcg 2483echo "# Automatically generated by configure - do not modify" > $config_host_mak 2484echo "SRC_PATH=$source_path" >> $config_host_mak 2485echo "HOST_CC=$host_cc" >> $config_host_mak 2486 2487# versioned checked in the main config_host.mak above 2488if test -n "$gdb_bin"; then 2489 echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak 2490fi 2491if test "$plugins" = "yes" ; then 2492 echo "CONFIG_PLUGIN=y" >> $config_host_mak 2493fi 2494 2495tcg_tests_targets= 2496for target in $target_list; do 2497 arch=${target%%-*} 2498 2499 case $target in 2500 xtensa*-linux-user) 2501 # the toolchain is not complete with headers, only build softmmu tests 2502 continue 2503 ;; 2504 *-softmmu) 2505 test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue 2506 qemu="qemu-system-$arch" 2507 ;; 2508 *-linux-user|*-bsd-user) 2509 qemu="qemu-$arch" 2510 ;; 2511 esac 2512 2513 if probe_target_compiler $target || test -n "$container_image"; then 2514 test -n "$container_image" && build_static=y 2515 mkdir -p "tests/tcg/$target" 2516 config_target_mak=tests/tcg/$target/config-target.mak 2517 ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile" 2518 echo "# Automatically generated by configure - do not modify" > "$config_target_mak" 2519 echo "TARGET_NAME=$arch" >> "$config_target_mak" 2520 echo "TARGET=$target" >> "$config_target_mak" 2521 write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak" 2522 echo "BUILD_STATIC=$build_static" >> "$config_target_mak" 2523 echo "QEMU=$PWD/$qemu" >> "$config_target_mak" 2524 2525 # will GDB work with these binaries? 2526 if test "${gdb_arches#*$arch}" != "$gdb_arches"; then 2527 echo "HOST_GDB_SUPPORTS_ARCH=y" >> "$config_target_mak" 2528 fi 2529 2530 echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs 2531 tcg_tests_targets="$tcg_tests_targets $target" 2532 fi 2533done 2534 2535if test "$tcg" = "enabled"; then 2536 echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak 2537fi 2538) 2539 2540if test "$skip_meson" = no; then 2541 cross="config-meson.cross.new" 2542 meson_quote() { 2543 test $# = 0 && return 2544 echo "'$(echo $* | sed "s/ /','/g")'" 2545 } 2546 2547 echo "# Automatically generated by configure - do not modify" > $cross 2548 echo "[properties]" >> $cross 2549 2550 # unroll any custom device configs 2551 for a in $device_archs; do 2552 eval "c=\$devices_${a}" 2553 echo "${a}-softmmu = '$c'" >> $cross 2554 done 2555 2556 echo "[built-in options]" >> $cross 2557 echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross 2558 echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross 2559 test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross 2560 echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross 2561 echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross 2562 echo "[binaries]" >> $cross 2563 echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross 2564 test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross 2565 test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross 2566 echo "ar = [$(meson_quote $ar)]" >> $cross 2567 echo "nm = [$(meson_quote $nm)]" >> $cross 2568 echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross 2569 echo "ranlib = [$(meson_quote $ranlib)]" >> $cross 2570 if has $sdl2_config; then 2571 echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross 2572 fi 2573 echo "strip = [$(meson_quote $strip)]" >> $cross 2574 echo "widl = [$(meson_quote $widl)]" >> $cross 2575 echo "windres = [$(meson_quote $windres)]" >> $cross 2576 echo "windmc = [$(meson_quote $windmc)]" >> $cross 2577 if test "$cross_compile" = "yes"; then 2578 cross_arg="--cross-file config-meson.cross" 2579 echo "[host_machine]" >> $cross 2580 echo "system = '$targetos'" >> $cross 2581 case "$cpu" in 2582 i386) 2583 echo "cpu_family = 'x86'" >> $cross 2584 ;; 2585 *) 2586 echo "cpu_family = '$cpu'" >> $cross 2587 ;; 2588 esac 2589 echo "cpu = '$cpu'" >> $cross 2590 if test "$bigendian" = "yes" ; then 2591 echo "endian = 'big'" >> $cross 2592 else 2593 echo "endian = 'little'" >> $cross 2594 fi 2595 else 2596 cross_arg="--native-file config-meson.cross" 2597 fi 2598 mv $cross config-meson.cross 2599 2600 rm -rf meson-private meson-info meson-logs 2601 2602 # Built-in options 2603 test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir" 2604 test "$default_feature" = no && meson_option_add -Dauto_features=disabled 2605 test "$pie" = no && meson_option_add -Db_pie=false 2606 test "$werror" = yes && meson_option_add -Dwerror=true 2607 2608 # QEMU options 2609 test "$cfi" != false && meson_option_add "-Dcfi=$cfi" 2610 test "$fdt" != auto && meson_option_add "-Dfdt=$fdt" 2611 test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE" 2612 test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix" 2613 test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd" 2614 test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg" 2615 test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server" 2616 run_meson() { 2617 NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path" 2618 } 2619 eval run_meson $meson_options 2620 if test "$?" -ne 0 ; then 2621 error_exit "meson setup failed" 2622 fi 2623fi 2624 2625# Save the configure command line for later reuse. 2626cat <<EOD >config.status 2627#!/bin/sh 2628# Generated by configure. 2629# Run this file to recreate the current configuration. 2630# Compiler output produced by configure, useful for debugging 2631# configure, is in config.log if it exists. 2632EOD 2633 2634preserve_env() { 2635 envname=$1 2636 2637 eval envval=\$$envname 2638 2639 if test -n "$envval" 2640 then 2641 echo "$envname='$envval'" >> config.status 2642 echo "export $envname" >> config.status 2643 else 2644 echo "unset $envname" >> config.status 2645 fi 2646} 2647 2648# Preserve various env variables that influence what 2649# features/build target configure will detect 2650preserve_env AR 2651preserve_env AS 2652preserve_env CC 2653preserve_env CFLAGS 2654preserve_env CXX 2655preserve_env CXXFLAGS 2656preserve_env LD 2657preserve_env LDFLAGS 2658preserve_env LD_LIBRARY_PATH 2659preserve_env MAKE 2660preserve_env NM 2661preserve_env OBJCFLAGS 2662preserve_env OBJCOPY 2663preserve_env PATH 2664preserve_env PKG_CONFIG 2665preserve_env PKG_CONFIG_LIBDIR 2666preserve_env PKG_CONFIG_PATH 2667preserve_env PYTHON 2668preserve_env QEMU_GA_MANUFACTURER 2669preserve_env QEMU_GA_DISTRO 2670preserve_env QEMU_GA_VERSION 2671preserve_env SDL2_CONFIG 2672preserve_env SMBD 2673preserve_env STRIP 2674preserve_env WIDL 2675preserve_env WINDRES 2676preserve_env WINDMC 2677 2678printf "exec" >>config.status 2679for i in "$0" "$@"; do 2680 test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status 2681done 2682echo ' "$@"' >>config.status 2683chmod +x config.status 2684 2685rm -r "$TMPDIR1" 2686