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 mkdir build 35 touch $MARKER 36 37 cat > GNUmakefile <<'EOF' 38# This file is auto-generated by configure to support in-source tree 39# 'make' command invocation 40 41ifeq ($(MAKECMDGOALS),) 42recurse: all 43endif 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 54force: ; 55.PHONY: force 56GNUmakefile: ; 57 58EOF 59 cd build 60 exec "$source_path/configure" "$@" 61fi 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.) 68TMPDIR1="config-temp" 69rm -rf "${TMPDIR1}" 70if ! mkdir -p "${TMPDIR1}"; then 71 echo "ERROR: failed to create temporary directory" 72 exit 1 73fi 74 75TMPB="qemu-conf" 76TMPC="${TMPDIR1}/${TMPB}.c" 77TMPO="${TMPDIR1}/${TMPB}.o" 78TMPM="${TMPDIR1}/${TMPB}.m" 79TMPE="${TMPDIR1}/${TMPB}.exe" 80 81rm -f config.log 82 83# Print a helpful header at the top of config.log 84echo "# QEMU configure log $(date)" >> config.log 85printf "# Configured with:" >> config.log 86printf " '%s'" "$0" "$@" >> config.log 87echo >> config.log 88echo "#" >> config.log 89 90quote_sh() { 91 printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&'," 92} 93 94print_error() { 95 (echo 96 echo "ERROR: $1" 97 while test -n "$2"; do 98 echo " $2" 99 shift 100 done 101 echo) >&2 102} 103 104error_exit() { 105 print_error "$@" 106 exit 1 107} 108 109do_compiler() { 110 # Run the compiler, capturing its output to the log. First argument 111 # is compiler binary to execute. 112 compiler="$1" 113 shift 114 if test -n "$BASH_VERSION"; then eval ' 115 echo >>config.log " 116funcs: ${FUNCNAME[*]} 117lines: ${BASH_LINENO[*]}" 118 '; fi 119 echo $compiler "$@" >> config.log 120 $compiler "$@" >> config.log 2>&1 || return $? 121} 122 123do_compiler_werror() { 124 # Run the compiler, capturing its output to the log. First argument 125 # is compiler binary to execute. 126 compiler="$1" 127 shift 128 if test -n "$BASH_VERSION"; then eval ' 129 echo >>config.log " 130funcs: ${FUNCNAME[*]} 131lines: ${BASH_LINENO[*]}" 132 '; fi 133 echo $compiler "$@" >> config.log 134 $compiler "$@" >> config.log 2>&1 || return $? 135 # Test passed. If this is an --enable-werror build, rerun 136 # the test with -Werror and bail out if it fails. This 137 # makes warning-generating-errors in configure test code 138 # obvious to developers. 139 if test "$werror" != "yes"; then 140 return 0 141 fi 142 # Don't bother rerunning the compile if we were already using -Werror 143 case "$*" in 144 *-Werror*) 145 return 0 146 ;; 147 esac 148 echo $compiler -Werror "$@" >> config.log 149 $compiler -Werror "$@" >> config.log 2>&1 && return $? 150 error_exit "configure test passed without -Werror but failed with -Werror." \ 151 "This is probably a bug in the configure script. The failing command" \ 152 "will be at the bottom of config.log." \ 153 "You can run configure with --disable-werror to bypass this check." 154} 155 156do_cc() { 157 do_compiler_werror "$cc" $CPU_CFLAGS "$@" 158} 159 160do_objc() { 161 do_compiler_werror "$objcc" $CPU_CFLAGS "$@" 162} 163 164# Append $2 to the variable named $1, with space separation 165add_to() { 166 eval $1=\${$1:+\"\$$1 \"}\$2 167} 168 169compile_object() { 170 local_cflags="$1" 171 do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC 172} 173 174compile_prog() { 175 local_cflags="$1" 176 local_ldflags="$2" 177 do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \ 178 $LDFLAGS $EXTRA_LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags 179} 180 181# symbolically link $1 to $2. Portable version of "ln -sf". 182symlink() { 183 rm -rf "$2" 184 mkdir -p "$(dirname "$2")" 185 ln -s "$1" "$2" 186} 187 188# check whether a command is available to this shell (may be either an 189# executable or a builtin) 190has() { 191 type "$1" >/dev/null 2>&1 192} 193 194version_ge () { 195 local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ') 196 local_ver2=$(echo "$2" | tr . ' ') 197 while true; do 198 set x $local_ver1 199 local_first=${2-0} 200 # 'shift 2' if $2 is set, or 'shift' if $2 is not set 201 shift ${2:+2} 202 local_ver1=$* 203 set x $local_ver2 204 # the second argument finished, the first must be greater or equal 205 test $# = 1 && return 0 206 test $local_first -lt $2 && return 1 207 test $local_first -gt $2 && return 0 208 shift ${2:+2} 209 local_ver2=$* 210 done 211} 212 213glob() { 214 eval test -z '"${1#'"$2"'}"' 215} 216 217if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]"; 218then 219 error_exit "main directory cannot contain spaces nor colons" 220fi 221 222# default parameters 223cpu="" 224static="no" 225cross_compile="no" 226cross_prefix="" 227host_cc="cc" 228stack_protector="" 229safe_stack="" 230use_containers="yes" 231gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb") 232 233if test -e "$source_path/.git" 234then 235 git_submodules_action="update" 236else 237 git_submodules_action="ignore" 238fi 239 240git_submodules="ui/keycodemapdb" 241git="git" 242 243# Don't accept a target_list environment variable. 244unset target_list 245unset target_list_exclude 246 247# Default value for a variable defining feature "foo". 248# * foo="no" feature will only be used if --enable-foo arg is given 249# * foo="" feature will be searched for, and if found, will be used 250# unless --disable-foo is given 251# * foo="yes" this value will only be set by --enable-foo flag. 252# feature will searched for, 253# if not found, configure exits with error 254# 255# Always add --enable-foo and --disable-foo command line args. 256# Distributions want to ensure that several features are compiled in, and it 257# is impossible without a --enable-foo that exits if a feature is not found. 258 259default_feature="" 260# parse CC options second 261for opt do 262 optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)') 263 case "$opt" in 264 --without-default-features) 265 default_feature="no" 266 ;; 267 esac 268done 269 270EXTRA_CFLAGS="" 271EXTRA_CXXFLAGS="" 272EXTRA_OBJCFLAGS="" 273EXTRA_LDFLAGS="" 274 275debug_tcg="no" 276sanitizers="no" 277tsan="no" 278fortify_source="yes" 279EXESUF="" 280modules="no" 281prefix="/usr/local" 282qemu_suffix="qemu" 283softmmu="yes" 284linux_user="" 285bsd_user="" 286pie="" 287coroutine="" 288plugins="$default_feature" 289meson="" 290ninja="" 291bindir="bin" 292skip_meson=no 293vfio_user_server="disabled" 294 295# The following Meson options are handled manually (still they 296# are included in the automatically generated help message) 297 298# 1. Track which submodules are needed 299fdt="auto" 300 301# 2. Automatically enable/disable other options 302tcg="auto" 303cfi="false" 304 305# parse CC options second 306for opt do 307 optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)') 308 case "$opt" in 309 --cross-prefix=*) cross_prefix="$optarg" 310 cross_compile="yes" 311 ;; 312 --cc=*) CC="$optarg" 313 ;; 314 --cxx=*) CXX="$optarg" 315 ;; 316 --cpu=*) cpu="$optarg" 317 ;; 318 --extra-cflags=*) 319 EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg" 320 EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg" 321 EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg" 322 ;; 323 --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg" 324 ;; 325 --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg" 326 ;; 327 --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg" 328 ;; 329 --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option" 330 ;; 331 --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*} 332 eval "cross_cc_cflags_${cc_arch}=\$optarg" 333 ;; 334 --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*} 335 eval "cross_cc_${cc_arch}=\$optarg" 336 ;; 337 --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option" 338 ;; 339 --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*} 340 eval "cross_prefix_${cc_arch}=\$optarg" 341 ;; 342 esac 343done 344# OS specific 345# Using uname is really, really broken. Once we have the right set of checks 346# we can eliminate its usage altogether. 347 348# Preferred compiler: 349# ${CC} (if set) 350# ${cross_prefix}gcc (if cross-prefix specified) 351# system compiler 352if test -z "${CC}${cross_prefix}"; then 353 cc="$host_cc" 354else 355 cc="${CC-${cross_prefix}gcc}" 356fi 357 358if test -z "${CXX}${cross_prefix}"; then 359 cxx="c++" 360else 361 cxx="${CXX-${cross_prefix}g++}" 362fi 363 364ar="${AR-${cross_prefix}ar}" 365as="${AS-${cross_prefix}as}" 366ccas="${CCAS-$cc}" 367objcopy="${OBJCOPY-${cross_prefix}objcopy}" 368ld="${LD-${cross_prefix}ld}" 369ranlib="${RANLIB-${cross_prefix}ranlib}" 370nm="${NM-${cross_prefix}nm}" 371smbd="$SMBD" 372strip="${STRIP-${cross_prefix}strip}" 373widl="${WIDL-${cross_prefix}widl}" 374windres="${WINDRES-${cross_prefix}windres}" 375windmc="${WINDMC-${cross_prefix}windmc}" 376pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}" 377query_pkg_config() { 378 "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@" 379} 380pkg_config=query_pkg_config 381sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}" 382 383# default flags for all hosts 384# We use -fwrapv to tell the compiler that we require a C dialect where 385# left shift of signed integers is well defined and has the expected 386# 2s-complement style results. (Both clang and gcc agree that it 387# provides these semantics.) 388QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv" 389QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS" 390QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS" 391QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS" 392 393QEMU_LDFLAGS= 394 395# Flags that are needed during configure but later taken care of by Meson 396CONFIGURE_CFLAGS="-std=gnu11 -Wall" 397CONFIGURE_LDFLAGS= 398 399 400check_define() { 401cat > $TMPC <<EOF 402#if !defined($1) 403#error $1 not defined 404#endif 405int main(void) { return 0; } 406EOF 407 compile_object 408} 409 410check_include() { 411cat > $TMPC <<EOF 412#include <$1> 413int main(void) { return 0; } 414EOF 415 compile_object 416} 417 418write_c_skeleton() { 419 cat > $TMPC <<EOF 420int main(void) { return 0; } 421EOF 422} 423 424if check_define __linux__ ; then 425 targetos=linux 426elif check_define _WIN32 ; then 427 targetos=windows 428elif check_define __OpenBSD__ ; then 429 targetos=openbsd 430elif check_define __sun__ ; then 431 targetos=sunos 432elif check_define __HAIKU__ ; then 433 targetos=haiku 434elif check_define __FreeBSD__ ; then 435 targetos=freebsd 436elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then 437 targetos=gnu/kfreebsd 438elif check_define __DragonFly__ ; then 439 targetos=dragonfly 440elif check_define __NetBSD__; then 441 targetos=netbsd 442elif check_define __APPLE__; then 443 targetos=darwin 444else 445 # This is a fatal error, but don't report it yet, because we 446 # might be going to just print the --help text, or it might 447 # be the result of a missing compiler. 448 targetos=bogus 449fi 450 451# OS specific 452 453mingw32="no" 454bsd="no" 455linux="no" 456solaris="no" 457case $targetos in 458windows) 459 mingw32="yes" 460 plugins="no" 461 pie="no" 462;; 463gnu/kfreebsd) 464 bsd="yes" 465;; 466freebsd) 467 bsd="yes" 468 make="${MAKE-gmake}" 469 # needed for kinfo_getvmmap(3) in libutil.h 470;; 471dragonfly) 472 bsd="yes" 473 make="${MAKE-gmake}" 474;; 475netbsd) 476 bsd="yes" 477 make="${MAKE-gmake}" 478;; 479openbsd) 480 bsd="yes" 481 make="${MAKE-gmake}" 482;; 483darwin) 484 bsd="yes" 485 darwin="yes" 486 # Disable attempts to use ObjectiveC features in os/object.h since they 487 # won't work when we're compiling with gcc as a C compiler. 488 QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS" 489;; 490sunos) 491 solaris="yes" 492 make="${MAKE-gmake}" 493# needed for CMSG_ macros in sys/socket.h 494 QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS" 495# needed for TIOCWIN* defines in termios.h 496 QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS" 497 # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo 498 # Note that this check is broken for cross-compilation: if you're 499 # cross-compiling to one of these OSes then you'll need to specify 500 # the correct CPU with the --cpu option. 501 if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then 502 cpu="x86_64" 503 fi 504;; 505haiku) 506 pie="no" 507 QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS" 508;; 509linux) 510 linux="yes" 511;; 512esac 513 514if test ! -z "$cpu" ; then 515 # command line argument 516 : 517elif check_define __i386__ ; then 518 cpu="i386" 519elif check_define __x86_64__ ; then 520 if check_define __ILP32__ ; then 521 cpu="x32" 522 else 523 cpu="x86_64" 524 fi 525elif check_define __sparc__ ; then 526 if check_define __arch64__ ; then 527 cpu="sparc64" 528 else 529 cpu="sparc" 530 fi 531elif check_define _ARCH_PPC ; then 532 if check_define _ARCH_PPC64 ; then 533 if check_define _LITTLE_ENDIAN ; then 534 cpu="ppc64le" 535 else 536 cpu="ppc64" 537 fi 538 else 539 cpu="ppc" 540 fi 541elif check_define __mips__ ; then 542 cpu="mips" 543elif check_define __s390__ ; then 544 if check_define __s390x__ ; then 545 cpu="s390x" 546 else 547 cpu="s390" 548 fi 549elif check_define __riscv ; then 550 cpu="riscv" 551elif check_define __arm__ ; then 552 cpu="arm" 553elif check_define __aarch64__ ; then 554 cpu="aarch64" 555elif check_define __loongarch64 ; then 556 cpu="loongarch64" 557else 558 cpu=$(uname -m) 559fi 560 561# Normalise host CPU name, set multilib cflags 562# Note that this case should only have supported host CPUs, not guests. 563case "$cpu" in 564 armv*b|armv*l|arm) 565 cpu="arm" ;; 566 567 i386|i486|i586|i686|i86pc|BePC) 568 cpu="i386" 569 CPU_CFLAGS="-m32" ;; 570 x32) 571 cpu="x86_64" 572 CPU_CFLAGS="-mx32" ;; 573 x86_64|amd64) 574 cpu="x86_64" 575 # ??? Only extremely old AMD cpus do not have cmpxchg16b. 576 # If we truly care, we should simply detect this case at 577 # runtime and generate the fallback to serial emulation. 578 CPU_CFLAGS="-m64 -mcx16" ;; 579 580 mips*) 581 cpu="mips" ;; 582 583 ppc) 584 CPU_CFLAGS="-m32" ;; 585 ppc64) 586 CPU_CFLAGS="-m64 -mbig-endian" ;; 587 ppc64le) 588 cpu="ppc64" 589 CPU_CFLAGS="-m64 -mlittle-endian" ;; 590 591 s390) 592 CPU_CFLAGS="-m31" ;; 593 s390x) 594 CPU_CFLAGS="-m64" ;; 595 596 sparc|sun4[cdmuv]) 597 cpu="sparc" 598 CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;; 599 sparc64) 600 CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;; 601esac 602 603: ${make=${MAKE-make}} 604 605# We prefer python 3.x. A bare 'python' is traditionally 606# python 2.x, but some distros have it as python 3.x, so 607# we check that too 608python= 609explicit_python=no 610for binary in "${PYTHON-python3}" python 611do 612 if has "$binary" 613 then 614 python=$(command -v "$binary") 615 break 616 fi 617done 618 619 620# Check for ancillary tools used in testing 621genisoimage= 622for binary in genisoimage mkisofs 623do 624 if has $binary 625 then 626 genisoimage=$(command -v "$binary") 627 break 628 fi 629done 630 631# Default objcc to clang if available, otherwise use CC 632if has clang; then 633 objcc=clang 634else 635 objcc="$cc" 636fi 637 638if test "$mingw32" = "yes" ; then 639 EXESUF=".exe" 640 # MinGW needs -mthreads for TLS and macro _MT. 641 CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS" 642 write_c_skeleton; 643 prefix="/qemu" 644 bindir="" 645 qemu_suffix="" 646fi 647 648werror="" 649 650meson_option_build_array() { 651 printf '[' 652 (if test "$targetos" = windows; then 653 IFS=\; 654 else 655 IFS=: 656 fi 657 for e in $1; do 658 printf '"""' 659 # backslash escape any '\' and '"' characters 660 printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g' 661 printf '""",' 662 done) 663 printf ']\n' 664} 665 666. "$source_path/scripts/meson-buildoptions.sh" 667 668meson_options= 669meson_option_add() { 670 meson_options="$meson_options $(quote_sh "$1")" 671} 672meson_option_parse() { 673 meson_options="$meson_options $(_meson_option_parse "$@")" 674 if test $? -eq 1; then 675 echo "ERROR: unknown option $1" 676 echo "Try '$0 --help' for more information" 677 exit 1 678 fi 679} 680 681for opt do 682 optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)') 683 case "$opt" in 684 --help|-h) show_help=yes 685 ;; 686 --version|-V) exec cat "$source_path/VERSION" 687 ;; 688 --prefix=*) prefix="$optarg" 689 ;; 690 --cross-prefix=*) 691 ;; 692 --cc=*) 693 ;; 694 --host-cc=*) host_cc="$optarg" 695 ;; 696 --cxx=*) 697 ;; 698 --objcc=*) objcc="$optarg" 699 ;; 700 --make=*) make="$optarg" 701 ;; 702 --install=*) 703 ;; 704 --python=*) python="$optarg" ; explicit_python=yes 705 ;; 706 --skip-meson) skip_meson=yes 707 ;; 708 --meson=*) meson="$optarg" 709 ;; 710 --ninja=*) ninja="$optarg" 711 ;; 712 --smbd=*) smbd="$optarg" 713 ;; 714 --extra-cflags=*) 715 ;; 716 --extra-cxxflags=*) 717 ;; 718 --extra-objcflags=*) 719 ;; 720 --extra-ldflags=*) 721 ;; 722 --cross-cc-*) 723 ;; 724 --cross-prefix-*) 725 ;; 726 --enable-debug-info) meson_option_add -Ddebug=true 727 ;; 728 --disable-debug-info) meson_option_add -Ddebug=false 729 ;; 730 --enable-modules) 731 modules="yes" 732 ;; 733 --disable-modules) 734 modules="no" 735 ;; 736 --cpu=*) 737 ;; 738 --target-list=*) target_list="$optarg" 739 if test "$target_list_exclude"; then 740 error_exit "Can't mix --target-list with --target-list-exclude" 741 fi 742 ;; 743 --target-list-exclude=*) target_list_exclude="$optarg" 744 if test "$target_list"; then 745 error_exit "Can't mix --target-list-exclude with --target-list" 746 fi 747 ;; 748 --with-default-devices) meson_option_add -Ddefault_devices=true 749 ;; 750 --without-default-devices) meson_option_add -Ddefault_devices=false 751 ;; 752 --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option" 753 ;; 754 --with-devices-*) device_arch=${opt#--with-devices-}; 755 device_arch=${device_arch%%=*} 756 cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak 757 if test -f "$cf"; then 758 device_archs="$device_archs $device_arch" 759 eval "devices_${device_arch}=\$optarg" 760 else 761 error_exit "File $cf does not exist" 762 fi 763 ;; 764 --without-default-features) # processed above 765 ;; 766 --static) 767 static="yes" 768 QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS" 769 ;; 770 --bindir=*) bindir="$optarg" 771 ;; 772 --with-suffix=*) qemu_suffix="$optarg" 773 ;; 774 --host=*|--build=*|\ 775 --disable-dependency-tracking|\ 776 --sbindir=*|--sharedstatedir=*|\ 777 --oldincludedir=*|--datarootdir=*|--infodir=*|\ 778 --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*) 779 # These switches are silently ignored, for compatibility with 780 # autoconf-generated configure scripts. This allows QEMU's 781 # configure to be used by RPM and similar macros that set 782 # lots of directory switches by default. 783 ;; 784 --enable-debug-tcg) debug_tcg="yes" 785 ;; 786 --disable-debug-tcg) debug_tcg="no" 787 ;; 788 --enable-debug) 789 # Enable debugging options that aren't excessively noisy 790 debug_tcg="yes" 791 meson_option_parse --enable-debug-mutex "" 792 meson_option_add -Doptimization=0 793 fortify_source="no" 794 ;; 795 --enable-sanitizers) sanitizers="yes" 796 ;; 797 --disable-sanitizers) sanitizers="no" 798 ;; 799 --enable-tsan) tsan="yes" 800 ;; 801 --disable-tsan) tsan="no" 802 ;; 803 --disable-tcg) tcg="disabled" 804 plugins="no" 805 ;; 806 --enable-tcg) tcg="enabled" 807 ;; 808 --disable-system) softmmu="no" 809 ;; 810 --enable-system) softmmu="yes" 811 ;; 812 --disable-user) 813 linux_user="no" ; 814 bsd_user="no" ; 815 ;; 816 --enable-user) ;; 817 --disable-linux-user) linux_user="no" 818 ;; 819 --enable-linux-user) linux_user="yes" 820 ;; 821 --disable-bsd-user) bsd_user="no" 822 ;; 823 --enable-bsd-user) bsd_user="yes" 824 ;; 825 --enable-pie) pie="yes" 826 ;; 827 --disable-pie) pie="no" 828 ;; 829 --enable-werror) werror="yes" 830 ;; 831 --disable-werror) werror="no" 832 ;; 833 --enable-stack-protector) stack_protector="yes" 834 ;; 835 --disable-stack-protector) stack_protector="no" 836 ;; 837 --enable-safe-stack) safe_stack="yes" 838 ;; 839 --disable-safe-stack) safe_stack="no" 840 ;; 841 --enable-cfi) 842 cfi="true"; 843 meson_option_add -Db_lto=true 844 ;; 845 --disable-cfi) cfi="false" 846 ;; 847 --disable-fdt) fdt="disabled" 848 ;; 849 --enable-fdt) fdt="enabled" 850 ;; 851 --enable-fdt=git) fdt="internal" 852 ;; 853 --enable-fdt=*) fdt="$optarg" 854 ;; 855 --with-coroutine=*) coroutine="$optarg" 856 ;; 857 --disable-zlib-test) 858 ;; 859 --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane) 860 echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2 861 ;; 862 --enable-vhdx|--disable-vhdx) 863 echo "$0: $opt is obsolete, VHDX driver is always built" >&2 864 ;; 865 --enable-uuid|--disable-uuid) 866 echo "$0: $opt is obsolete, UUID support is always built" >&2 867 ;; 868 --with-git=*) git="$optarg" 869 ;; 870 --with-git-submodules=*) 871 git_submodules_action="$optarg" 872 ;; 873 --enable-plugins) if test "$mingw32" = "yes"; then 874 error_exit "TCG plugins not currently supported on Windows platforms" 875 else 876 plugins="yes" 877 fi 878 ;; 879 --disable-plugins) plugins="no" 880 ;; 881 --enable-containers) use_containers="yes" 882 ;; 883 --disable-containers) use_containers="no" 884 ;; 885 --gdb=*) gdb_bin="$optarg" 886 ;; 887 # backwards compatibility options 888 --enable-trace-backend=*) meson_option_parse "--enable-trace-backends=$optarg" "$optarg" 889 ;; 890 --disable-blobs) meson_option_parse --disable-install-blobs "" 891 ;; 892 --enable-vfio-user-server) vfio_user_server="enabled" 893 ;; 894 --disable-vfio-user-server) vfio_user_server="disabled" 895 ;; 896 --enable-tcmalloc) meson_option_parse --enable-malloc=tcmalloc tcmalloc 897 ;; 898 --enable-jemalloc) meson_option_parse --enable-malloc=jemalloc jemalloc 899 ;; 900 # everything else has the same name in configure and meson 901 --*) meson_option_parse "$opt" "$optarg" 902 ;; 903 esac 904done 905 906# test for any invalid configuration combinations 907if test "$plugins" = "yes" -a "$tcg" = "disabled"; then 908 error_exit "Can't enable plugins on non-TCG builds" 909fi 910 911case $git_submodules_action in 912 update|validate) 913 if test ! -e "$source_path/.git"; then 914 echo "ERROR: cannot $git_submodules_action git submodules without .git" 915 exit 1 916 fi 917 ;; 918 ignore) 919 if ! test -f "$source_path/ui/keycodemapdb/README" 920 then 921 echo 922 echo "ERROR: missing GIT submodules" 923 echo 924 if test -e "$source_path/.git"; then 925 echo "--with-git-submodules=ignore specified but submodules were not" 926 echo "checked out. Please initialize and update submodules." 927 else 928 echo "This is not a GIT checkout but module content appears to" 929 echo "be missing. Do not use 'git archive' or GitHub download links" 930 echo "to acquire QEMU source archives. Non-GIT builds are only" 931 echo "supported with source archives linked from:" 932 echo 933 echo " https://www.qemu.org/download/#source" 934 echo 935 echo "Developers working with GIT can use scripts/archive-source.sh" 936 echo "if they need to create valid source archives." 937 fi 938 echo 939 exit 1 940 fi 941 ;; 942 *) 943 echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'" 944 exit 1 945 ;; 946esac 947 948default_target_list="" 949mak_wilds="" 950 951if [ "$linux_user" != no ]; then 952 if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then 953 linux_user=yes 954 elif [ "$linux_user" = yes ]; then 955 error_exit "linux-user not supported on this architecture" 956 fi 957fi 958if [ "$bsd_user" != no ]; then 959 if [ "$bsd_user" = "" ]; then 960 test $targetos = freebsd && bsd_user=yes 961 fi 962 if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then 963 error_exit "bsd-user not supported on this host OS" 964 fi 965fi 966if [ "$softmmu" = "yes" ]; then 967 mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak" 968fi 969if [ "$linux_user" = "yes" ]; then 970 mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak" 971fi 972if [ "$bsd_user" = "yes" ]; then 973 mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak" 974fi 975 976for config in $mak_wilds; do 977 target="$(basename "$config" .mak)" 978 if echo "$target_list_exclude" | grep -vq "$target"; then 979 default_target_list="${default_target_list} $target" 980 fi 981done 982 983if test x"$show_help" = x"yes" ; then 984cat << EOF 985 986Usage: configure [options] 987Options: [defaults in brackets after descriptions] 988 989Standard options: 990 --help print this message 991 --prefix=PREFIX install in PREFIX [$prefix] 992 --target-list=LIST set target list (default: build all) 993$(echo Available targets: $default_target_list | \ 994 fold -s -w 53 | sed -e 's/^/ /') 995 --target-list-exclude=LIST exclude a set of targets from the default target-list 996 997Advanced options (experts only): 998 --cross-prefix=PREFIX use PREFIX for compile tools, PREFIX can be blank [$cross_prefix] 999 --cc=CC use C compiler CC [$cc] 1000 --host-cc=CC use C compiler CC [$host_cc] for code run at 1001 build time 1002 --cxx=CXX use C++ compiler CXX [$cxx] 1003 --objcc=OBJCC use Objective-C compiler OBJCC [$objcc] 1004 --extra-cflags=CFLAGS append extra C compiler flags CFLAGS 1005 --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS 1006 --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS 1007 --extra-ldflags=LDFLAGS append extra linker flags LDFLAGS 1008 --cross-cc-ARCH=CC use compiler when building ARCH guest test cases 1009 --cross-cc-cflags-ARCH= use compiler flags when building ARCH guest tests 1010 --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases 1011 --make=MAKE use specified make [$make] 1012 --python=PYTHON use specified python [$python] 1013 --meson=MESON use specified meson [$meson] 1014 --ninja=NINJA use specified ninja [$ninja] 1015 --smbd=SMBD use specified smbd [$smbd] 1016 --with-git=GIT use specified git [$git] 1017 --with-git-submodules=update update git submodules (default if .git dir exists) 1018 --with-git-submodules=validate fail if git submodules are not up to date 1019 --with-git-submodules=ignore do not update or check git submodules (default if no .git dir) 1020 --static enable static build [$static] 1021 --bindir=PATH install binaries in PATH 1022 --with-suffix=SUFFIX suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix] 1023 --without-default-features default all --enable-* options to "disabled" 1024 --without-default-devices do not include any device that is not needed to 1025 start the emulator (only use if you are including 1026 desired devices in configs/devices/) 1027 --with-devices-ARCH=NAME override default configs/devices 1028 --enable-debug enable common debug build options 1029 --enable-sanitizers enable default sanitizers 1030 --enable-tsan enable thread sanitizer 1031 --disable-werror disable compilation abort on warning 1032 --disable-stack-protector disable compiler-provided stack protection 1033 --cpu=CPU Build for host CPU [$cpu] 1034 --with-coroutine=BACKEND coroutine backend. Supported options: 1035 ucontext, sigaltstack, windows 1036 --enable-plugins 1037 enable plugins via shared library loading 1038 --disable-containers don't use containers for cross-building 1039 --gdb=GDB-path gdb to use for gdbstub tests [$gdb_bin] 1040EOF 1041 meson_options_help 1042cat << EOF 1043 system all system emulation targets 1044 user supported user emulation targets 1045 linux-user all linux usermode emulation targets 1046 bsd-user all BSD usermode emulation targets 1047 pie Position Independent Executables 1048 modules modules support (non-Windows) 1049 debug-tcg TCG debugging (default is disabled) 1050 debug-info debugging information 1051 safe-stack SafeStack Stack Smash Protection. Depends on 1052 clang/llvm >= 3.7 and requires coroutine backend ucontext. 1053 1054NOTE: The object files are built at the place where configure is launched 1055EOF 1056exit 0 1057fi 1058 1059# Remove old dependency files to make sure that they get properly regenerated 1060rm -f ./*/config-devices.mak.d 1061 1062if test -z "$python" 1063then 1064 error_exit "Python not found. Use --python=/path/to/python" 1065fi 1066if ! has "$make" 1067then 1068 error_exit "GNU make ($make) not found" 1069fi 1070 1071# Note that if the Python conditional here evaluates True we will exit 1072# with status 1 which is a shell 'false' value. 1073if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then 1074 error_exit "Cannot use '$python', Python >= 3.6 is required." \ 1075 "Use --python=/path/to/python to specify a supported Python." 1076fi 1077 1078# Suppress writing compiled files 1079python="$python -B" 1080 1081if test -z "$meson"; then 1082 if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.61.5; then 1083 meson=meson 1084 elif test "$git_submodules_action" != 'ignore' ; then 1085 meson=git 1086 elif test -e "${source_path}/meson/meson.py" ; then 1087 meson=internal 1088 else 1089 if test "$explicit_python" = yes; then 1090 error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found." 1091 else 1092 error_exit "Meson not found. Use --meson=/path/to/meson" 1093 fi 1094 fi 1095else 1096 # Meson uses its own Python interpreter to invoke other Python scripts, 1097 # but the user wants to use the one they specified with --python. 1098 # 1099 # We do not want to override the distro Python interpreter (and sometimes 1100 # cannot: for example in Homebrew /usr/bin/meson is a bash script), so 1101 # just require --meson=git|internal together with --python. 1102 if test "$explicit_python" = yes; then 1103 case "$meson" in 1104 git | internal) ;; 1105 *) error_exit "--python requires using QEMU's embedded Meson distribution." ;; 1106 esac 1107 fi 1108fi 1109 1110if test "$meson" = git; then 1111 git_submodules="${git_submodules} meson" 1112fi 1113 1114case "$meson" in 1115 git | internal) 1116 meson="$python ${source_path}/meson/meson.py" 1117 ;; 1118 *) meson=$(command -v "$meson") ;; 1119esac 1120 1121# Probe for ninja 1122 1123if test -z "$ninja"; then 1124 for c in ninja ninja-build samu; do 1125 if has $c; then 1126 ninja=$(command -v "$c") 1127 break 1128 fi 1129 done 1130 if test -z "$ninja"; then 1131 error_exit "Cannot find Ninja" 1132 fi 1133fi 1134 1135# Check that the C compiler works. Doing this here before testing 1136# the host CPU ensures that we had a valid CC to autodetect the 1137# $cpu var (and we should bail right here if that's not the case). 1138# It also allows the help message to be printed without a CC. 1139write_c_skeleton; 1140if compile_object ; then 1141 : C compiler works ok 1142else 1143 error_exit "\"$cc\" either does not exist or does not work" 1144fi 1145if ! compile_prog ; then 1146 error_exit "\"$cc\" cannot build an executable (is your linker broken?)" 1147fi 1148 1149# Consult white-list to determine whether to enable werror 1150# by default. Only enable by default for git builds 1151if test -z "$werror" ; then 1152 if test "$git_submodules_action" != "ignore" && \ 1153 { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then 1154 werror="yes" 1155 else 1156 werror="no" 1157 fi 1158fi 1159 1160if test "$targetos" = "bogus"; then 1161 # Now that we know that we're not printing the help and that 1162 # the compiler works (so the results of the check_defines we used 1163 # to identify the OS are reliable), if we didn't recognize the 1164 # host OS we should stop now. 1165 error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')" 1166fi 1167 1168# Check whether the compiler matches our minimum requirements: 1169cat > $TMPC << EOF 1170#if defined(__clang_major__) && defined(__clang_minor__) 1171# ifdef __apple_build_version__ 1172# if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0) 1173# error You need at least XCode Clang v10.0 to compile QEMU 1174# endif 1175# else 1176# if __clang_major__ < 6 || (__clang_major__ == 6 && __clang_minor__ < 0) 1177# error You need at least Clang v6.0 to compile QEMU 1178# endif 1179# endif 1180#elif defined(__GNUC__) && defined(__GNUC_MINOR__) 1181# if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4) 1182# error You need at least GCC v7.4.0 to compile QEMU 1183# endif 1184#else 1185# error You either need GCC or Clang to compiler QEMU 1186#endif 1187int main (void) { return 0; } 1188EOF 1189if ! compile_prog "" "" ; then 1190 error_exit "You need at least GCC v7.4 or Clang v6.0 (or XCode Clang v10.0)" 1191fi 1192 1193# Accumulate -Wfoo and -Wno-bar separately. 1194# We will list all of the enable flags first, and the disable flags second. 1195# Note that we do not add -Werror, because that would enable it for all 1196# configure tests. If a configure test failed due to -Werror this would 1197# just silently disable some features, so it's too error prone. 1198 1199warn_flags= 1200add_to warn_flags -Wold-style-declaration 1201add_to warn_flags -Wold-style-definition 1202add_to warn_flags -Wtype-limits 1203add_to warn_flags -Wformat-security 1204add_to warn_flags -Wformat-y2k 1205add_to warn_flags -Winit-self 1206add_to warn_flags -Wignored-qualifiers 1207add_to warn_flags -Wempty-body 1208add_to warn_flags -Wnested-externs 1209add_to warn_flags -Wendif-labels 1210add_to warn_flags -Wexpansion-to-defined 1211add_to warn_flags -Wimplicit-fallthrough=2 1212 1213nowarn_flags= 1214add_to nowarn_flags -Wno-initializer-overrides 1215add_to nowarn_flags -Wno-missing-include-dirs 1216add_to nowarn_flags -Wno-shift-negative-value 1217add_to nowarn_flags -Wno-string-plus-int 1218add_to nowarn_flags -Wno-typedef-redefinition 1219add_to nowarn_flags -Wno-tautological-type-limit-compare 1220add_to nowarn_flags -Wno-psabi 1221add_to nowarn_flags -Wno-gnu-variable-sized-type-not-at-end 1222 1223gcc_flags="$warn_flags $nowarn_flags" 1224 1225cc_has_warning_flag() { 1226 write_c_skeleton; 1227 1228 # Use the positive sense of the flag when testing for -Wno-wombat 1229 # support (gcc will happily accept the -Wno- form of unknown 1230 # warning options). 1231 optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')" 1232 compile_prog "-Werror $optflag" "" 1233} 1234 1235objcc_has_warning_flag() { 1236 cat > $TMPM <<EOF 1237int main(void) { return 0; } 1238EOF 1239 1240 # Use the positive sense of the flag when testing for -Wno-wombat 1241 # support (gcc will happily accept the -Wno- form of unknown 1242 # warning options). 1243 optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')" 1244 do_objc -Werror $optflag \ 1245 $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \ 1246 -o $TMPE $TMPM $QEMU_LDFLAGS 1247} 1248 1249for flag in $gcc_flags; do 1250 if cc_has_warning_flag $flag ; then 1251 QEMU_CFLAGS="$QEMU_CFLAGS $flag" 1252 fi 1253 if objcc_has_warning_flag $flag ; then 1254 QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag" 1255 fi 1256done 1257 1258if test "$stack_protector" != "no"; then 1259 cat > $TMPC << EOF 1260int main(int argc, char *argv[]) 1261{ 1262 char arr[64], *p = arr, *c = argv[argc - 1]; 1263 while (*c) { 1264 *p++ = *c++; 1265 } 1266 return 0; 1267} 1268EOF 1269 gcc_flags="-fstack-protector-strong -fstack-protector-all" 1270 sp_on=0 1271 for flag in $gcc_flags; do 1272 # We need to check both a compile and a link, since some compiler 1273 # setups fail only on a .c->.o compile and some only at link time 1274 if compile_object "-Werror $flag" && 1275 compile_prog "-Werror $flag" ""; then 1276 QEMU_CFLAGS="$QEMU_CFLAGS $flag" 1277 QEMU_LDFLAGS="$QEMU_LDFLAGS $flag" 1278 sp_on=1 1279 break 1280 fi 1281 done 1282 if test "$stack_protector" = yes; then 1283 if test $sp_on = 0; then 1284 error_exit "Stack protector not supported" 1285 fi 1286 fi 1287fi 1288 1289# Disable -Wmissing-braces on older compilers that warn even for 1290# the "universal" C zero initializer {0}. 1291cat > $TMPC << EOF 1292struct { 1293 int a[2]; 1294} x = {0}; 1295EOF 1296if compile_object "-Werror" "" ; then 1297 : 1298else 1299 QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces" 1300fi 1301 1302# Our module code doesn't support Windows 1303if test "$modules" = "yes" && test "$mingw32" = "yes" ; then 1304 error_exit "Modules are not available for Windows" 1305fi 1306 1307# Static linking is not possible with plugins, modules or PIE 1308if test "$static" = "yes" ; then 1309 if test "$modules" = "yes" ; then 1310 error_exit "static and modules are mutually incompatible" 1311 fi 1312 if test "$plugins" = "yes"; then 1313 error_exit "static and plugins are mutually incompatible" 1314 else 1315 plugins="no" 1316 fi 1317fi 1318test "$plugins" = "" && plugins=yes 1319 1320cat > $TMPC << EOF 1321 1322#ifdef __linux__ 1323# define THREAD __thread 1324#else 1325# define THREAD 1326#endif 1327static THREAD int tls_var; 1328int main(void) { return tls_var; } 1329EOF 1330 1331# Meson currently only handles pie as a boolean for now so if we have 1332# explicitly disabled PIE we need to extend our cflags because it wont. 1333if test "$static" = "yes"; then 1334 if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then 1335 CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS" 1336 pie="yes" 1337 elif test "$pie" = "yes"; then 1338 error_exit "-static-pie not available due to missing toolchain support" 1339 else 1340 pie="no" 1341 QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS" 1342 fi 1343elif test "$pie" = "no"; then 1344 if compile_prog "-Werror -fno-pie" "-no-pie"; then 1345 CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS" 1346 CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS" 1347 QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS" 1348 fi 1349elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then 1350 CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS" 1351 CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS" 1352 pie="yes" 1353elif test "$pie" = "yes"; then 1354 error_exit "PIE not available due to missing toolchain support" 1355else 1356 echo "Disabling PIE due to missing toolchain support" 1357 pie="no" 1358fi 1359 1360########################################## 1361# __sync_fetch_and_and requires at least -march=i486. Many toolchains 1362# use i686 as default anyway, but for those that don't, an explicit 1363# specification is necessary 1364 1365if test "$cpu" = "i386"; then 1366 cat > $TMPC << EOF 1367static int sfaa(int *ptr) 1368{ 1369 return __sync_fetch_and_and(ptr, 0); 1370} 1371 1372int main(void) 1373{ 1374 int val = 42; 1375 val = __sync_val_compare_and_swap(&val, 0, 1); 1376 sfaa(&val); 1377 return val; 1378} 1379EOF 1380 if ! compile_prog "" "" ; then 1381 QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS" 1382 fi 1383fi 1384 1385if test -z "${target_list+xxx}" ; then 1386 default_targets=yes 1387 for target in $default_target_list; do 1388 target_list="$target_list $target" 1389 done 1390 target_list="${target_list# }" 1391else 1392 default_targets=no 1393 target_list=$(echo "$target_list" | sed -e 's/,/ /g') 1394 for target in $target_list; do 1395 # Check that we recognised the target name; this allows a more 1396 # friendly error message than if we let it fall through. 1397 case " $default_target_list " in 1398 *" $target "*) 1399 ;; 1400 *) 1401 error_exit "Unknown target name '$target'" 1402 ;; 1403 esac 1404 done 1405fi 1406 1407# see if system emulation was really requested 1408case " $target_list " in 1409 *"-softmmu "*) softmmu=yes 1410 ;; 1411 *) softmmu=no 1412 ;; 1413esac 1414 1415if test "$tcg" = "auto"; then 1416 if test -z "$target_list"; then 1417 tcg="disabled" 1418 else 1419 tcg="enabled" 1420 fi 1421fi 1422 1423if test "$tcg" = "enabled"; then 1424 git_submodules="$git_submodules tests/fp/berkeley-testfloat-3" 1425 git_submodules="$git_submodules tests/fp/berkeley-softfloat-3" 1426fi 1427 1428########################################## 1429# big/little endian test 1430cat > $TMPC << EOF 1431#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1432# error LITTLE 1433#endif 1434int main(void) { return 0; } 1435EOF 1436 1437if ! compile_prog ; then 1438 bigendian="no" 1439else 1440 cat > $TMPC << EOF 1441#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1442# error BIG 1443#endif 1444int main(void) { return 0; } 1445EOF 1446 1447 if ! compile_prog ; then 1448 bigendian="yes" 1449 else 1450 echo big/little test failed 1451 exit 1 1452 fi 1453fi 1454 1455########################################## 1456# pkg-config probe 1457 1458if ! has "$pkg_config_exe"; then 1459 error_exit "pkg-config binary '$pkg_config_exe' not found" 1460fi 1461 1462########################################## 1463# glib support probe 1464 1465# When bumping glib_req_ver, please check also whether we should increase 1466# the _WIN32_WINNT setting in osdep.h according to the value from glib 1467glib_req_ver=2.56 1468glib_modules=gthread-2.0 1469if test "$modules" = yes; then 1470 glib_modules="$glib_modules gmodule-export-2.0" 1471elif test "$plugins" = "yes"; then 1472 glib_modules="$glib_modules gmodule-no-export-2.0" 1473fi 1474 1475for i in $glib_modules; do 1476 if $pkg_config --atleast-version=$glib_req_ver $i; then 1477 glib_cflags=$($pkg_config --cflags $i) 1478 glib_libs=$($pkg_config --libs $i) 1479 else 1480 error_exit "glib-$glib_req_ver $i is required to compile QEMU" 1481 fi 1482done 1483 1484glib_bindir="$($pkg_config --variable=bindir glib-2.0)" 1485if test -z "$glib_bindir" ; then 1486 glib_bindir="$($pkg_config --variable=prefix glib-2.0)"/bin 1487fi 1488 1489# This workaround is required due to a bug in pkg-config file for glib as it 1490# doesn't define GLIB_STATIC_COMPILATION for pkg-config --static 1491 1492if test "$static" = yes && test "$mingw32" = yes; then 1493 glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags" 1494fi 1495 1496# Sanity check that the current size_t matches the 1497# size that glib thinks it should be. This catches 1498# problems on multi-arch where people try to build 1499# 32-bit QEMU while pointing at 64-bit glib headers 1500cat > $TMPC <<EOF 1501#include <glib.h> 1502#include <unistd.h> 1503 1504#define QEMU_BUILD_BUG_ON(x) \ 1505 typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused)); 1506 1507int main(void) { 1508 QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T); 1509 return 0; 1510} 1511EOF 1512 1513if ! compile_prog "$glib_cflags" "$glib_libs" ; then 1514 error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\ 1515 "You probably need to set PKG_CONFIG_LIBDIR"\ 1516 "to point to the right pkg-config files for your"\ 1517 "build target" 1518fi 1519 1520# Silence clang warnings triggered by glib < 2.57.2 1521cat > $TMPC << EOF 1522#include <glib.h> 1523typedef struct Foo { 1524 int i; 1525} Foo; 1526static void foo_free(Foo *f) 1527{ 1528 g_free(f); 1529} 1530G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free) 1531int main(void) { return 0; } 1532EOF 1533if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then 1534 if cc_has_warning_flag "-Wno-unused-function"; then 1535 glib_cflags="$glib_cflags -Wno-unused-function" 1536 CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function" 1537 fi 1538fi 1539 1540########################################## 1541# fdt probe 1542 1543case "$fdt" in 1544 auto | enabled | internal) 1545 # Simpler to always update submodule, even if not needed. 1546 git_submodules="${git_submodules} dtc" 1547 ;; 1548esac 1549 1550########################################## 1551# check and set a backend for coroutine 1552 1553# We prefer ucontext, but it's not always possible. The fallback 1554# is sigcontext. On Windows the only valid backend is the Windows 1555# specific one. 1556 1557ucontext_works=no 1558if test "$darwin" != "yes"; then 1559 cat > $TMPC << EOF 1560#include <ucontext.h> 1561#ifdef __stub_makecontext 1562#error Ignoring glibc stub makecontext which will always fail 1563#endif 1564int main(void) { makecontext(0, 0, 0); return 0; } 1565EOF 1566 if compile_prog "" "" ; then 1567 ucontext_works=yes 1568 fi 1569fi 1570 1571if test "$coroutine" = ""; then 1572 if test "$mingw32" = "yes"; then 1573 coroutine=win32 1574 elif test "$ucontext_works" = "yes"; then 1575 coroutine=ucontext 1576 else 1577 coroutine=sigaltstack 1578 fi 1579else 1580 case $coroutine in 1581 windows) 1582 if test "$mingw32" != "yes"; then 1583 error_exit "'windows' coroutine backend only valid for Windows" 1584 fi 1585 # Unfortunately the user visible backend name doesn't match the 1586 # coroutine-*.c filename for this case, so we have to adjust it here. 1587 coroutine=win32 1588 ;; 1589 ucontext) 1590 if test "$ucontext_works" != "yes"; then 1591 error_exit "'ucontext' backend requested but makecontext not available" 1592 fi 1593 ;; 1594 sigaltstack) 1595 if test "$mingw32" = "yes"; then 1596 error_exit "only the 'windows' coroutine backend is valid for Windows" 1597 fi 1598 ;; 1599 *) 1600 error_exit "unknown coroutine backend $coroutine" 1601 ;; 1602 esac 1603fi 1604 1605################################################## 1606# SafeStack 1607 1608 1609if test "$safe_stack" = "yes"; then 1610cat > $TMPC << EOF 1611int main(void) 1612{ 1613#if ! __has_feature(safe_stack) 1614#error SafeStack Disabled 1615#endif 1616 return 0; 1617} 1618EOF 1619 flag="-fsanitize=safe-stack" 1620 # Check that safe-stack is supported and enabled. 1621 if compile_prog "-Werror $flag" "$flag"; then 1622 # Flag needed both at compilation and at linking 1623 QEMU_CFLAGS="$QEMU_CFLAGS $flag" 1624 QEMU_LDFLAGS="$QEMU_LDFLAGS $flag" 1625 else 1626 error_exit "SafeStack not supported by your compiler" 1627 fi 1628 if test "$coroutine" != "ucontext"; then 1629 error_exit "SafeStack is only supported by the coroutine backend ucontext" 1630 fi 1631else 1632cat > $TMPC << EOF 1633int main(void) 1634{ 1635#if defined(__has_feature) 1636#if __has_feature(safe_stack) 1637#error SafeStack Enabled 1638#endif 1639#endif 1640 return 0; 1641} 1642EOF 1643if test "$safe_stack" = "no"; then 1644 # Make sure that safe-stack is disabled 1645 if ! compile_prog "-Werror" ""; then 1646 # SafeStack was already enabled, try to explicitly remove the feature 1647 flag="-fno-sanitize=safe-stack" 1648 if ! compile_prog "-Werror $flag" "$flag"; then 1649 error_exit "Configure cannot disable SafeStack" 1650 fi 1651 QEMU_CFLAGS="$QEMU_CFLAGS $flag" 1652 QEMU_LDFLAGS="$QEMU_LDFLAGS $flag" 1653 fi 1654else # "$safe_stack" = "" 1655 # Set safe_stack to yes or no based on pre-existing flags 1656 if compile_prog "-Werror" ""; then 1657 safe_stack="no" 1658 else 1659 safe_stack="yes" 1660 if test "$coroutine" != "ucontext"; then 1661 error_exit "SafeStack is only supported by the coroutine backend ucontext" 1662 fi 1663 fi 1664fi 1665fi 1666 1667######################################## 1668# check if ccache is interfering with 1669# semantic analysis of macros 1670 1671unset CCACHE_CPP2 1672ccache_cpp2=no 1673cat > $TMPC << EOF 1674static const int Z = 1; 1675#define fn() ({ Z; }) 1676#define TAUT(X) ((X) == Z) 1677#define PAREN(X, Y) (X == Y) 1678#define ID(X) (X) 1679int main(void) 1680{ 1681 int x = 0, y = 0; 1682 x = ID(x); 1683 x = fn(); 1684 fn(); 1685 if (PAREN(x, y)) return 0; 1686 if (TAUT(Z)) return 0; 1687 return 0; 1688} 1689EOF 1690 1691if ! compile_object "-Werror"; then 1692 ccache_cpp2=yes 1693fi 1694 1695################################################# 1696# clang does not support glibc + FORTIFY_SOURCE. 1697 1698if test "$fortify_source" != "no"; then 1699 if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then 1700 fortify_source="no"; 1701 elif test -n "$cxx" && has $cxx && 1702 echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then 1703 fortify_source="no"; 1704 else 1705 fortify_source="yes" 1706 fi 1707fi 1708 1709########################################## 1710# checks for sanitizers 1711 1712have_asan=no 1713have_ubsan=no 1714have_asan_iface_h=no 1715have_asan_iface_fiber=no 1716 1717if test "$sanitizers" = "yes" ; then 1718 write_c_skeleton 1719 if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then 1720 have_asan=yes 1721 fi 1722 1723 # we could use a simple skeleton for flags checks, but this also 1724 # detect the static linking issue of ubsan, see also: 1725 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285 1726 cat > $TMPC << EOF 1727#include <stdlib.h> 1728int main(void) { 1729 void *tmp = malloc(10); 1730 if (tmp != NULL) { 1731 return *(int *)(tmp + 2); 1732 } 1733 return 1; 1734} 1735EOF 1736 if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then 1737 have_ubsan=yes 1738 fi 1739 1740 if check_include "sanitizer/asan_interface.h" ; then 1741 have_asan_iface_h=yes 1742 fi 1743 1744 cat > $TMPC << EOF 1745#include <sanitizer/asan_interface.h> 1746int main(void) { 1747 __sanitizer_start_switch_fiber(0, 0, 0); 1748 return 0; 1749} 1750EOF 1751 if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then 1752 have_asan_iface_fiber=yes 1753 fi 1754fi 1755 1756# Thread sanitizer is, for now, much noisier than the other sanitizers; 1757# keep it separate until that is not the case. 1758if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then 1759 error_exit "TSAN is not supported with other sanitiziers." 1760fi 1761have_tsan=no 1762have_tsan_iface_fiber=no 1763if test "$tsan" = "yes" ; then 1764 write_c_skeleton 1765 if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then 1766 have_tsan=yes 1767 fi 1768 cat > $TMPC << EOF 1769#include <sanitizer/tsan_interface.h> 1770int main(void) { 1771 __tsan_create_fiber(0); 1772 return 0; 1773} 1774EOF 1775 if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then 1776 have_tsan_iface_fiber=yes 1777 fi 1778fi 1779 1780########################################## 1781# functions to probe cross compilers 1782 1783container="no" 1784if test $use_containers = "yes" && (has "docker" || has "podman"); then 1785 case $($python "$source_path"/tests/docker/docker.py probe) in 1786 *docker) container=docker ;; 1787 podman) container=podman ;; 1788 no) container=no ;; 1789 esac 1790 if test "$container" != "no"; then 1791 docker_py="$python $source_path/tests/docker/docker.py --engine $container" 1792 fi 1793fi 1794 1795# cross compilers defaults, can be overridden with --cross-cc-ARCH 1796: ${cross_prefix_aarch64="aarch64-linux-gnu-"} 1797: ${cross_prefix_aarch64_be="$cross_prefix_aarch64"} 1798: ${cross_prefix_alpha="alpha-linux-gnu-"} 1799: ${cross_prefix_arm="arm-linux-gnueabihf-"} 1800: ${cross_prefix_armeb="$cross_prefix_arm"} 1801: ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"} 1802: ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"} 1803: ${cross_prefix_hppa="hppa-linux-gnu-"} 1804: ${cross_prefix_i386="i686-linux-gnu-"} 1805: ${cross_prefix_m68k="m68k-linux-gnu-"} 1806: ${cross_prefix_microblaze="microblaze-linux-musl-"} 1807: ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"} 1808: ${cross_prefix_mips64="mips64-linux-gnuabi64-"} 1809: ${cross_prefix_mipsel="mipsel-linux-gnu-"} 1810: ${cross_prefix_mips="mips-linux-gnu-"} 1811: ${cross_prefix_nios2="nios2-linux-gnu-"} 1812: ${cross_prefix_ppc="powerpc-linux-gnu-"} 1813: ${cross_prefix_ppc64="powerpc64-linux-gnu-"} 1814: ${cross_prefix_ppc64le="$cross_prefix_ppc64"} 1815: ${cross_prefix_riscv64="riscv64-linux-gnu-"} 1816: ${cross_prefix_s390x="s390x-linux-gnu-"} 1817: ${cross_prefix_sh4="sh4-linux-gnu-"} 1818: ${cross_prefix_sparc64="sparc64-linux-gnu-"} 1819: ${cross_prefix_sparc="$cross_prefix_sparc64"} 1820: ${cross_prefix_x86_64="x86_64-linux-gnu-"} 1821 1822: ${cross_cc_aarch64_be="$cross_cc_aarch64"} 1823: ${cross_cc_cflags_aarch64_be="-mbig-endian"} 1824: ${cross_cc_armeb="$cross_cc_arm"} 1825: ${cross_cc_cflags_armeb="-mbig-endian"} 1826: ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"} 1827: ${cross_cc_cflags_hexagon="-mv67 -O2 -static"} 1828: ${cross_cc_cflags_i386="-m32"} 1829: ${cross_cc_cflags_ppc="-m32 -mbig-endian"} 1830: ${cross_cc_cflags_ppc64="-m64 -mbig-endian"} 1831: ${cross_cc_ppc64le="$cross_cc_ppc64"} 1832: ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"} 1833: ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"} 1834: ${cross_cc_sparc="$cross_cc_sparc64"} 1835: ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"} 1836: ${cross_cc_cflags_x86_64="-m64"} 1837 1838compute_target_variable() { 1839 eval "$2=" 1840 if eval test -n "\"\${cross_prefix_$1}\""; then 1841 if eval has "\"\${cross_prefix_$1}\$3\""; then 1842 eval "$2=\"\${cross_prefix_$1}\$3\"" 1843 fi 1844 fi 1845} 1846 1847have_target() { 1848 for i; do 1849 case " $target_list " in 1850 *" $i "*) return 0;; 1851 *) ;; 1852 esac 1853 done 1854 return 1 1855} 1856 1857# probe_target_compiler TARGET 1858# 1859# Look for a compiler for the given target, either native or cross. 1860# Set variables target_* if a compiler is found, and container_cross_* 1861# if a Docker-based cross-compiler image is known for the target. 1862# Set got_cross_cc to yes/no depending on whether a non-container-based 1863# compiler was found. 1864# 1865# If TARGET is a user-mode emulation target, also set build_static to 1866# "y" if static linking is possible. 1867# 1868probe_target_compiler() { 1869 # reset all output variables 1870 got_cross_cc=no 1871 container_image= 1872 container_hosts= 1873 container_cross_cc= 1874 container_cross_ar= 1875 container_cross_as= 1876 container_cross_ld= 1877 container_cross_nm= 1878 container_cross_objcopy= 1879 container_cross_ranlib= 1880 container_cross_strip= 1881 1882 # We shall skip configuring the target compiler if the user didn't 1883 # bother enabling an appropriate guest. This avoids building 1884 # extraneous firmware images and tests. 1885 if test "${target_list#*$1}" != "$1"; then 1886 break; 1887 else 1888 return 1 1889 fi 1890 1891 target_arch=${1%%-*} 1892 case $target_arch in 1893 aarch64) container_hosts="x86_64 aarch64" ;; 1894 alpha) container_hosts=x86_64 ;; 1895 arm) container_hosts="x86_64 aarch64" ;; 1896 cris) container_hosts=x86_64 ;; 1897 hexagon) container_hosts=x86_64 ;; 1898 hppa) container_hosts=x86_64 ;; 1899 i386) container_hosts=x86_64 ;; 1900 loongarch64) container_hosts=x86_64 ;; 1901 m68k) container_hosts=x86_64 ;; 1902 microblaze) container_hosts=x86_64 ;; 1903 mips64el) container_hosts=x86_64 ;; 1904 mips64) container_hosts=x86_64 ;; 1905 mipsel) container_hosts=x86_64 ;; 1906 mips) container_hosts=x86_64 ;; 1907 nios2) container_hosts=x86_64 ;; 1908 ppc) container_hosts=x86_64 ;; 1909 ppc64|ppc64le) container_hosts=x86_64 ;; 1910 riscv64) container_hosts=x86_64 ;; 1911 s390x) container_hosts=x86_64 ;; 1912 sh4) container_hosts=x86_64 ;; 1913 sparc64) container_hosts=x86_64 ;; 1914 tricore) container_hosts=x86_64 ;; 1915 x86_64) container_hosts="aarch64 ppc64el x86_64" ;; 1916 xtensa*) container_hosts=x86_64 ;; 1917 esac 1918 1919 for host in $container_hosts; do 1920 test "$container" != no || continue 1921 test "$host" = "$cpu" || continue 1922 case $target_arch in 1923 aarch64) 1924 # We don't have any bigendian build tools so we only use this for AArch64 1925 container_image=debian-arm64-cross 1926 container_cross_prefix=aarch64-linux-gnu- 1927 container_cross_cc=${container_cross_prefix}gcc-10 1928 ;; 1929 alpha) 1930 container_image=debian-alpha-cross 1931 container_cross_prefix=alpha-linux-gnu- 1932 ;; 1933 arm) 1934 # We don't have any bigendian build tools so we only use this for ARM 1935 container_image=debian-armhf-cross 1936 container_cross_prefix=arm-linux-gnueabihf- 1937 ;; 1938 cris) 1939 container_image=fedora-cris-cross 1940 container_cross_prefix=cris-linux-gnu- 1941 ;; 1942 hexagon) 1943 container_image=debian-hexagon-cross 1944 container_cross_prefix=hexagon-unknown-linux-musl- 1945 container_cross_cc=${container_cross_prefix}clang 1946 ;; 1947 hppa) 1948 container_image=debian-hppa-cross 1949 container_cross_prefix=hppa-linux-gnu- 1950 ;; 1951 i386) 1952 container_image=fedora-i386-cross 1953 container_cross_prefix= 1954 ;; 1955 loongarch64) 1956 container_image=debian-loongarch-cross 1957 container_cross_prefix=loongarch64-unknown-linux-gnu- 1958 ;; 1959 m68k) 1960 container_image=debian-m68k-cross 1961 container_cross_prefix=m68k-linux-gnu- 1962 ;; 1963 microblaze) 1964 container_image=debian-microblaze-cross 1965 container_cross_prefix=microblaze-linux-musl- 1966 ;; 1967 mips64el) 1968 container_image=debian-mips64el-cross 1969 container_cross_prefix=mips64el-linux-gnuabi64- 1970 ;; 1971 mips64) 1972 container_image=debian-mips64-cross 1973 container_cross_prefix=mips64-linux-gnuabi64- 1974 ;; 1975 mipsel) 1976 container_image=debian-mipsel-cross 1977 container_cross_prefix=mipsel-linux-gnu- 1978 ;; 1979 mips) 1980 container_image=debian-mips-cross 1981 container_cross_prefix=mips-linux-gnu- 1982 ;; 1983 nios2) 1984 container_image=debian-nios2-cross 1985 container_cross_prefix=nios2-linux-gnu- 1986 ;; 1987 ppc) 1988 container_image=debian-powerpc-test-cross 1989 container_cross_prefix=powerpc-linux-gnu- 1990 container_cross_cc=${container_cross_prefix}gcc-10 1991 ;; 1992 ppc64|ppc64le) 1993 container_image=debian-powerpc-test-cross 1994 container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu- 1995 container_cross_cc=${container_cross_prefix}gcc-10 1996 ;; 1997 riscv64) 1998 container_image=debian-riscv64-test-cross 1999 container_cross_prefix=riscv64-linux-gnu- 2000 ;; 2001 s390x) 2002 container_image=debian-s390x-cross 2003 container_cross_prefix=s390x-linux-gnu- 2004 ;; 2005 sh4) 2006 container_image=debian-sh4-cross 2007 container_cross_prefix=sh4-linux-gnu- 2008 ;; 2009 sparc64) 2010 container_image=debian-sparc64-cross 2011 container_cross_prefix=sparc64-linux-gnu- 2012 ;; 2013 tricore) 2014 container_image=debian-tricore-cross 2015 container_cross_prefix=tricore- 2016 container_cross_as=tricore-as 2017 container_cross_ld=tricore-ld 2018 break 2019 ;; 2020 x86_64) 2021 container_image=debian-amd64-cross 2022 container_cross_prefix=x86_64-linux-gnu- 2023 ;; 2024 xtensa*) 2025 container_hosts=x86_64 2026 container_image=debian-xtensa-cross 2027 2028 # default to the dc232b cpu 2029 container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf- 2030 ;; 2031 esac 2032 : ${container_cross_cc:=${container_cross_prefix}gcc} 2033 : ${container_cross_ar:=${container_cross_prefix}ar} 2034 : ${container_cross_as:=${container_cross_prefix}as} 2035 : ${container_cross_ld:=${container_cross_prefix}ld} 2036 : ${container_cross_nm:=${container_cross_prefix}nm} 2037 : ${container_cross_objcopy:=${container_cross_prefix}objcopy} 2038 : ${container_cross_ranlib:=${container_cross_prefix}ranlib} 2039 : ${container_cross_strip:=${container_cross_prefix}strip} 2040 done 2041 2042 try=cross 2043 case "$target_arch:$cpu" in 2044 aarch64_be:aarch64 | \ 2045 armeb:arm | \ 2046 i386:x86_64 | \ 2047 mips*:mips64 | \ 2048 ppc*:ppc64 | \ 2049 sparc:sparc64 | \ 2050 "$cpu:$cpu") 2051 try='native cross' ;; 2052 esac 2053 eval "target_cflags=\${cross_cc_cflags_$target_arch}" 2054 for thistry in $try; do 2055 case $thistry in 2056 native) 2057 target_cc=$cc 2058 target_ccas=$ccas 2059 target_ar=$ar 2060 target_as=$as 2061 target_ld=$ld 2062 target_nm=$nm 2063 target_objcopy=$objcopy 2064 target_ranlib=$ranlib 2065 target_strip=$strip 2066 ;; 2067 cross) 2068 target_cc= 2069 if eval test -n "\"\${cross_cc_$target_arch}\""; then 2070 if eval has "\"\${cross_cc_$target_arch}\""; then 2071 eval "target_cc=\"\${cross_cc_$target_arch}\"" 2072 fi 2073 else 2074 compute_target_variable $target_arch target_cc gcc 2075 fi 2076 target_ccas=$target_cc 2077 compute_target_variable $target_arch target_ar ar 2078 compute_target_variable $target_arch target_as as 2079 compute_target_variable $target_arch target_ld ld 2080 compute_target_variable $target_arch target_nm nm 2081 compute_target_variable $target_arch target_objcopy objcopy 2082 compute_target_variable $target_arch target_ranlib ranlib 2083 compute_target_variable $target_arch target_strip strip 2084 ;; 2085 esac 2086 2087 if test -n "$target_cc"; then 2088 case $target_arch in 2089 i386|x86_64) 2090 if $target_cc --version | grep -qi "clang"; then 2091 continue 2092 fi 2093 ;; 2094 esac 2095 elif test -n "$target_as" && test -n "$target_ld"; then 2096 # Special handling for assembler only targets 2097 case $target in 2098 tricore-softmmu) 2099 build_static= 2100 got_cross_cc=yes 2101 break 2102 ;; 2103 *) 2104 continue 2105 ;; 2106 esac 2107 else 2108 continue 2109 fi 2110 2111 write_c_skeleton 2112 case $1 in 2113 *-softmmu) 2114 if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC && 2115 do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then 2116 got_cross_cc=yes 2117 break 2118 fi 2119 ;; 2120 *) 2121 if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then 2122 build_static=y 2123 got_cross_cc=yes 2124 break 2125 fi 2126 if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then 2127 build_static= 2128 got_cross_cc=yes 2129 break 2130 fi 2131 ;; 2132 esac 2133 done 2134 if test $got_cross_cc != yes; then 2135 build_static= 2136 target_cc= 2137 target_ccas= 2138 target_ar= 2139 target_as= 2140 target_ld= 2141 target_nm= 2142 target_objcopy= 2143 target_ranlib= 2144 target_strip= 2145 fi 2146 test -n "$target_cc" 2147} 2148 2149write_target_makefile() { 2150 echo "EXTRA_CFLAGS=$target_cflags" 2151 if test -z "$target_cc" && test -z "$target_as"; then 2152 test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?" 2153 echo "$1: docker-image-$container_image" >> Makefile.prereqs 2154 if test -n "$container_cross_cc"; then 2155 echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --" 2156 echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --" 2157 fi 2158 echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --" 2159 echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --" 2160 echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --" 2161 echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --" 2162 echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --" 2163 echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --" 2164 echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --" 2165 else 2166 if test -n "$target_cc"; then 2167 echo "CC=$target_cc" 2168 echo "CCAS=$target_ccas" 2169 fi 2170 if test -n "$target_ar"; then 2171 echo "AR=$target_ar" 2172 fi 2173 if test -n "$target_as"; then 2174 echo "AS=$target_as" 2175 fi 2176 if test -n "$target_ld"; then 2177 echo "LD=$target_ld" 2178 fi 2179 if test -n "$target_nm"; then 2180 echo "NM=$target_nm" 2181 fi 2182 if test -n "$target_objcopy"; then 2183 echo "OBJCOPY=$target_objcopy" 2184 fi 2185 if test -n "$target_ranlib"; then 2186 echo "RANLIB=$target_ranlib" 2187 fi 2188 if test -n "$target_strip"; then 2189 echo "STRIP=$target_strip" 2190 fi 2191 fi 2192} 2193 2194########################################## 2195# check for vfio_user_server 2196 2197case "$vfio_user_server" in 2198 enabled ) 2199 if test "$git_submodules_action" != "ignore"; then 2200 git_submodules="${git_submodules} subprojects/libvfio-user" 2201 fi 2202 ;; 2203esac 2204 2205########################################## 2206# End of CC checks 2207# After here, no more $cc or $ld runs 2208 2209write_c_skeleton 2210 2211if test "$fortify_source" = "yes" ; then 2212 QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS" 2213fi 2214 2215if test "$have_asan" = "yes"; then 2216 QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS" 2217 QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS" 2218 if test "$have_asan_iface_h" = "no" ; then 2219 echo "ASAN build enabled, but ASAN header missing." \ 2220 "Without code annotation, the report may be inferior." 2221 elif test "$have_asan_iface_fiber" = "no" ; then 2222 echo "ASAN build enabled, but ASAN header is too old." \ 2223 "Without code annotation, the report may be inferior." 2224 fi 2225fi 2226if test "$have_tsan" = "yes" ; then 2227 if test "$have_tsan_iface_fiber" = "yes" ; then 2228 QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS" 2229 QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS" 2230 else 2231 error_exit "Cannot enable TSAN due to missing fiber annotation interface." 2232 fi 2233elif test "$tsan" = "yes" ; then 2234 error_exit "Cannot enable TSAN due to missing sanitize thread interface." 2235fi 2236if test "$have_ubsan" = "yes"; then 2237 QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS" 2238 QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS" 2239fi 2240 2241########################################## 2242# Guest agent Windows MSI package 2243 2244if test "$QEMU_GA_MANUFACTURER" = ""; then 2245 QEMU_GA_MANUFACTURER=QEMU 2246fi 2247if test "$QEMU_GA_DISTRO" = ""; then 2248 QEMU_GA_DISTRO=Linux 2249fi 2250if test "$QEMU_GA_VERSION" = ""; then 2251 QEMU_GA_VERSION=$(cat "$source_path"/VERSION) 2252fi 2253 2254 2255####################################### 2256# cross-compiled firmware targets 2257 2258# Set up build tree symlinks that point back into the source tree 2259# (these can be both files and directories). 2260# Caution: avoid adding files or directories here using wildcards. This 2261# will result in problems later if a new file matching the wildcard is 2262# added to the source tree -- nothing will cause configure to be rerun 2263# so the build tree will be missing the link back to the new file, and 2264# tests might fail. Prefer to keep the relevant files in their own 2265# directory and symlink the directory instead. 2266LINKS="Makefile" 2267LINKS="$LINKS pc-bios/optionrom/Makefile" 2268LINKS="$LINKS pc-bios/s390-ccw/Makefile" 2269LINKS="$LINKS pc-bios/vof/Makefile" 2270LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit 2271LINKS="$LINKS tests/avocado tests/data" 2272LINKS="$LINKS tests/qemu-iotests/check" 2273LINKS="$LINKS python" 2274LINKS="$LINKS contrib/plugins/Makefile " 2275for f in $LINKS ; do 2276 if [ -e "$source_path/$f" ]; then 2277 mkdir -p "$(dirname ./"$f")" 2278 symlink "$source_path/$f" "$f" 2279 fi 2280done 2281 2282echo "# Automatically generated by configure - do not modify" > Makefile.prereqs 2283 2284# Mac OS X ships with a broken assembler 2285roms= 2286if have_target i386-softmmu x86_64-softmmu && \ 2287 test "$targetos" != "darwin" && test "$targetos" != "sunos" && \ 2288 test "$targetos" != "haiku" && \ 2289 probe_target_compiler i386-softmmu; then 2290 roms="pc-bios/optionrom" 2291 config_mak=pc-bios/optionrom/config.mak 2292 echo "# Automatically generated by configure - do not modify" > $config_mak 2293 echo "TOPSRC_DIR=$source_path" >> $config_mak 2294 write_target_makefile >> $config_mak 2295fi 2296 2297if have_target ppc-softmmu ppc64-softmmu && \ 2298 probe_target_compiler ppc-softmmu; then 2299 roms="$roms pc-bios/vof" 2300 config_mak=pc-bios/vof/config.mak 2301 echo "# Automatically generated by configure - do not modify" > $config_mak 2302 echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak 2303 write_target_makefile >> $config_mak 2304fi 2305 2306# Only build s390-ccw bios if the compiler has -march=z900 or -march=z10 2307# (which is the lowest architecture level that Clang supports) 2308if have_target s390x-softmmu && probe_target_compiler s390x-softmmu; then 2309 write_c_skeleton 2310 do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC 2311 has_z900=$? 2312 if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then 2313 if [ $has_z900 != 0 ]; then 2314 echo "WARNING: Your compiler does not support the z900!" 2315 echo " The s390-ccw bios will only work with guest CPUs >= z10." 2316 fi 2317 roms="$roms pc-bios/s390-ccw" 2318 config_mak=pc-bios/s390-ccw/config-host.mak 2319 echo "# Automatically generated by configure - do not modify" > $config_mak 2320 echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak 2321 write_target_makefile >> $config_mak 2322 # SLOF is required for building the s390-ccw firmware on s390x, 2323 # since it is using the libnet code from SLOF for network booting. 2324 git_submodules="${git_submodules} roms/SLOF" 2325 fi 2326fi 2327 2328####################################### 2329# generate config-host.mak 2330 2331if ! (GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then 2332 exit 1 2333fi 2334 2335config_host_mak="config-host.mak" 2336 2337echo "# Automatically generated by configure - do not modify" > $config_host_mak 2338echo >> $config_host_mak 2339 2340echo all: >> $config_host_mak 2341echo "GIT=$git" >> $config_host_mak 2342echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak 2343echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak 2344 2345if test "$debug_tcg" = "yes" ; then 2346 echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak 2347fi 2348if test "$mingw32" = "yes" ; then 2349 echo "CONFIG_WIN32=y" >> $config_host_mak 2350 echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak 2351 echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak 2352 echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak 2353else 2354 echo "CONFIG_POSIX=y" >> $config_host_mak 2355fi 2356 2357if test "$linux" = "yes" ; then 2358 echo "CONFIG_LINUX=y" >> $config_host_mak 2359fi 2360 2361if test "$darwin" = "yes" ; then 2362 echo "CONFIG_DARWIN=y" >> $config_host_mak 2363fi 2364 2365if test "$solaris" = "yes" ; then 2366 echo "CONFIG_SOLARIS=y" >> $config_host_mak 2367fi 2368if test "$static" = "yes" ; then 2369 echo "CONFIG_STATIC=y" >> $config_host_mak 2370fi 2371echo "SRC_PATH=$source_path" >> $config_host_mak 2372echo "TARGET_DIRS=$target_list" >> $config_host_mak 2373if test "$modules" = "yes"; then 2374 echo "CONFIG_MODULES=y" >> $config_host_mak 2375fi 2376 2377# XXX: suppress that 2378if [ "$bsd" = "yes" ] ; then 2379 echo "CONFIG_BSD=y" >> $config_host_mak 2380fi 2381 2382echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak 2383 2384if test "$have_asan_iface_fiber" = "yes" ; then 2385 echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak 2386fi 2387 2388if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then 2389 echo "CONFIG_TSAN=y" >> $config_host_mak 2390fi 2391 2392if test "$plugins" = "yes" ; then 2393 echo "CONFIG_PLUGIN=y" >> $config_host_mak 2394fi 2395 2396if test -n "$gdb_bin"; then 2397 gdb_version=$($gdb_bin --version | head -n 1) 2398 if version_ge ${gdb_version##* } 9.1; then 2399 echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak 2400 else 2401 gdb_bin="" 2402 fi 2403fi 2404 2405if test "$container" != no; then 2406 echo "ENGINE=$container" >> $config_host_mak 2407fi 2408echo "ROMS=$roms" >> $config_host_mak 2409echo "MAKE=$make" >> $config_host_mak 2410echo "PYTHON=$python" >> $config_host_mak 2411echo "GENISOIMAGE=$genisoimage" >> $config_host_mak 2412echo "MESON=$meson" >> $config_host_mak 2413echo "NINJA=$ninja" >> $config_host_mak 2414echo "CC=$cc" >> $config_host_mak 2415echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak 2416echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak 2417echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak 2418echo "GLIB_LIBS=$glib_libs" >> $config_host_mak 2419echo "GLIB_BINDIR=$glib_bindir" >> $config_host_mak 2420echo "GLIB_VERSION=$(pkg-config --modversion glib-2.0)" >> $config_host_mak 2421echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak 2422echo "EXESUF=$EXESUF" >> $config_host_mak 2423 2424# use included Linux headers 2425if test "$linux" = "yes" ; then 2426 mkdir -p linux-headers 2427 case "$cpu" in 2428 i386|x86_64) 2429 linux_arch=x86 2430 ;; 2431 ppc|ppc64) 2432 linux_arch=powerpc 2433 ;; 2434 s390x) 2435 linux_arch=s390 2436 ;; 2437 aarch64) 2438 linux_arch=arm64 2439 ;; 2440 loongarch*) 2441 linux_arch=loongarch 2442 ;; 2443 mips64) 2444 linux_arch=mips 2445 ;; 2446 *) 2447 # For most CPUs the kernel architecture name and QEMU CPU name match. 2448 linux_arch="$cpu" 2449 ;; 2450 esac 2451 # For non-KVM architectures we will not have asm headers 2452 if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then 2453 symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm 2454 fi 2455fi 2456 2457for target in $target_list; do 2458 target_dir="$target" 2459 target_name=$(echo $target | cut -d '-' -f 1)$EXESUF 2460 mkdir -p "$target_dir" 2461 case $target in 2462 *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;; 2463 *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;; 2464 esac 2465done 2466 2467if test "$default_targets" = "yes"; then 2468 echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak 2469fi 2470 2471if test "$ccache_cpp2" = "yes"; then 2472 echo "export CCACHE_CPP2=y" >> $config_host_mak 2473fi 2474 2475if test "$safe_stack" = "yes"; then 2476 echo "CONFIG_SAFESTACK=y" >> $config_host_mak 2477fi 2478 2479# tests/tcg configuration 2480(config_host_mak=tests/tcg/config-host.mak 2481mkdir -p tests/tcg 2482echo "# Automatically generated by configure - do not modify" > $config_host_mak 2483echo "SRC_PATH=$source_path" >> $config_host_mak 2484echo "HOST_CC=$host_cc" >> $config_host_mak 2485 2486# versioned checked in the main config_host.mak above 2487if test -n "$gdb_bin"; then 2488 echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak 2489fi 2490if test "$plugins" = "yes" ; then 2491 echo "CONFIG_PLUGIN=y" >> $config_host_mak 2492fi 2493 2494tcg_tests_targets= 2495for target in $target_list; do 2496 arch=${target%%-*} 2497 2498 case $target in 2499 xtensa*-linux-user) 2500 # the toolchain is not complete with headers, only build softmmu tests 2501 continue 2502 ;; 2503 *-softmmu) 2504 test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue 2505 qemu="qemu-system-$arch" 2506 ;; 2507 *-linux-user|*-bsd-user) 2508 qemu="qemu-$arch" 2509 ;; 2510 esac 2511 2512 if probe_target_compiler $target || test -n "$container_image"; then 2513 test -n "$container_image" && build_static=y 2514 mkdir -p "tests/tcg/$target" 2515 config_target_mak=tests/tcg/$target/config-target.mak 2516 ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile" 2517 echo "# Automatically generated by configure - do not modify" > "$config_target_mak" 2518 echo "TARGET_NAME=$arch" >> "$config_target_mak" 2519 echo "TARGET=$target" >> "$config_target_mak" 2520 write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak" 2521 echo "BUILD_STATIC=$build_static" >> "$config_target_mak" 2522 echo "QEMU=$PWD/$qemu" >> "$config_target_mak" 2523 echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs 2524 tcg_tests_targets="$tcg_tests_targets $target" 2525 fi 2526done 2527echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak) 2528 2529if test "$skip_meson" = no; then 2530 cross="config-meson.cross.new" 2531 meson_quote() { 2532 test $# = 0 && return 2533 echo "'$(echo $* | sed "s/ /','/g")'" 2534 } 2535 2536 echo "# Automatically generated by configure - do not modify" > $cross 2537 echo "[properties]" >> $cross 2538 2539 # unroll any custom device configs 2540 for a in $device_archs; do 2541 eval "c=\$devices_${a}" 2542 echo "${a}-softmmu = '$c'" >> $cross 2543 done 2544 2545 echo "[built-in options]" >> $cross 2546 echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross 2547 echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross 2548 test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross 2549 echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross 2550 echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross 2551 echo "[binaries]" >> $cross 2552 echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross 2553 test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross 2554 test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross 2555 echo "ar = [$(meson_quote $ar)]" >> $cross 2556 echo "nm = [$(meson_quote $nm)]" >> $cross 2557 echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross 2558 echo "ranlib = [$(meson_quote $ranlib)]" >> $cross 2559 if has $sdl2_config; then 2560 echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross 2561 fi 2562 echo "strip = [$(meson_quote $strip)]" >> $cross 2563 echo "widl = [$(meson_quote $widl)]" >> $cross 2564 echo "windres = [$(meson_quote $windres)]" >> $cross 2565 echo "windmc = [$(meson_quote $windmc)]" >> $cross 2566 if test "$cross_compile" = "yes"; then 2567 cross_arg="--cross-file config-meson.cross" 2568 echo "[host_machine]" >> $cross 2569 echo "system = '$targetos'" >> $cross 2570 case "$cpu" in 2571 i386) 2572 echo "cpu_family = 'x86'" >> $cross 2573 ;; 2574 *) 2575 echo "cpu_family = '$cpu'" >> $cross 2576 ;; 2577 esac 2578 echo "cpu = '$cpu'" >> $cross 2579 if test "$bigendian" = "yes" ; then 2580 echo "endian = 'big'" >> $cross 2581 else 2582 echo "endian = 'little'" >> $cross 2583 fi 2584 else 2585 cross_arg="--native-file config-meson.cross" 2586 fi 2587 mv $cross config-meson.cross 2588 2589 rm -rf meson-private meson-info meson-logs 2590 2591 # Built-in options 2592 test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir" 2593 test "$default_feature" = no && meson_option_add -Dauto_features=disabled 2594 test "$pie" = no && meson_option_add -Db_pie=false 2595 test "$werror" = yes && meson_option_add -Dwerror=true 2596 2597 # QEMU options 2598 test "$cfi" != false && meson_option_add "-Dcfi=$cfi" 2599 test "$fdt" != auto && meson_option_add "-Dfdt=$fdt" 2600 test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE" 2601 test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix" 2602 test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd" 2603 test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg" 2604 test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server" 2605 run_meson() { 2606 NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path" 2607 } 2608 eval run_meson $meson_options 2609 if test "$?" -ne 0 ; then 2610 error_exit "meson setup failed" 2611 fi 2612else 2613 if test -f meson-private/cmd_line.txt; then 2614 # Adjust old command line options whose type was changed 2615 # Avoids having to use "setup --wipe" when Meson is upgraded 2616 perl -i -ne ' 2617 s/^gettext = true$/gettext = auto/; 2618 s/^gettext = false$/gettext = disabled/; 2619 /^b_staticpic/ && next; 2620 print;' meson-private/cmd_line.txt 2621 fi 2622fi 2623 2624# Save the configure command line for later reuse. 2625cat <<EOD >config.status 2626#!/bin/sh 2627# Generated by configure. 2628# Run this file to recreate the current configuration. 2629# Compiler output produced by configure, useful for debugging 2630# configure, is in config.log if it exists. 2631EOD 2632 2633preserve_env() { 2634 envname=$1 2635 2636 eval envval=\$$envname 2637 2638 if test -n "$envval" 2639 then 2640 echo "$envname='$envval'" >> config.status 2641 echo "export $envname" >> config.status 2642 else 2643 echo "unset $envname" >> config.status 2644 fi 2645} 2646 2647# Preserve various env variables that influence what 2648# features/build target configure will detect 2649preserve_env AR 2650preserve_env AS 2651preserve_env CC 2652preserve_env CFLAGS 2653preserve_env CXX 2654preserve_env CXXFLAGS 2655preserve_env LD 2656preserve_env LDFLAGS 2657preserve_env LD_LIBRARY_PATH 2658preserve_env MAKE 2659preserve_env NM 2660preserve_env OBJCFLAGS 2661preserve_env OBJCOPY 2662preserve_env PATH 2663preserve_env PKG_CONFIG 2664preserve_env PKG_CONFIG_LIBDIR 2665preserve_env PKG_CONFIG_PATH 2666preserve_env PYTHON 2667preserve_env SDL2_CONFIG 2668preserve_env SMBD 2669preserve_env STRIP 2670preserve_env WIDL 2671preserve_env WINDRES 2672preserve_env WINDMC 2673 2674printf "exec" >>config.status 2675for i in "$0" "$@"; do 2676 test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status 2677done 2678echo ' "$@"' >>config.status 2679chmod +x config.status 2680 2681rm -r "$TMPDIR1" 2682