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