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