xref: /openbmc/qemu/configure (revision 0d04c4c9)
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 "${TMPDIR1}"
70mkdir -p "${TMPDIR1}"
71if [ $? -ne 0 ]; then
72    echo "ERROR: failed to create temporary directory"
73    exit 1
74fi
75
76TMPB="qemu-conf"
77TMPC="${TMPDIR1}/${TMPB}.c"
78TMPO="${TMPDIR1}/${TMPB}.o"
79TMPCXX="${TMPDIR1}/${TMPB}.cxx"
80TMPE="${TMPDIR1}/${TMPB}.exe"
81
82rm -f config.log
83
84# Print a helpful header at the top of config.log
85echo "# QEMU configure log $(date)" >> config.log
86printf "# Configured with:" >> config.log
87printf " '%s'" "$0" "$@" >> config.log
88echo >> config.log
89echo "#" >> 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 $?
122    # Test passed. If this is an --enable-werror build, rerun
123    # the test with -Werror and bail out if it fails. This
124    # makes warning-generating-errors in configure test code
125    # obvious to developers.
126    if test "$werror" != "yes"; then
127        return 0
128    fi
129    # Don't bother rerunning the compile if we were already using -Werror
130    case "$*" in
131        *-Werror*)
132           return 0
133        ;;
134    esac
135    echo $compiler -Werror "$@" >> config.log
136    $compiler -Werror "$@" >> config.log 2>&1 && return $?
137    error_exit "configure test passed without -Werror but failed with -Werror." \
138        "This is probably a bug in the configure script. The failing command" \
139        "will be at the bottom of config.log." \
140        "You can run configure with --disable-werror to bypass this check."
141}
142
143do_cc() {
144    do_compiler "$cc" $CPU_CFLAGS "$@"
145}
146
147do_cxx() {
148    do_compiler "$cxx" $CPU_CFLAGS "$@"
149}
150
151# Append $2 to the variable named $1, with space separation
152add_to() {
153    eval $1=\${$1:+\"\$$1 \"}\$2
154}
155
156update_cxxflags() {
157    # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
158    # options which some versions of GCC's C++ compiler complain about
159    # because they only make sense for C programs.
160    QEMU_CXXFLAGS="-D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
161    CONFIGURE_CXXFLAGS=$(echo "$CONFIGURE_CFLAGS" | sed s/-std=gnu11/-std=gnu++11/)
162    for arg in $QEMU_CFLAGS; do
163        case $arg in
164            -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
165            -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
166                ;;
167            *)
168                QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
169                ;;
170        esac
171    done
172}
173
174compile_object() {
175  local_cflags="$1"
176  do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
177}
178
179compile_prog() {
180  local_cflags="$1"
181  local_ldflags="$2"
182  do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
183      $LDFLAGS $EXTRA_LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
184}
185
186# symbolically link $1 to $2.  Portable version of "ln -sf".
187symlink() {
188  rm -rf "$2"
189  mkdir -p "$(dirname "$2")"
190  ln -s "$1" "$2"
191}
192
193# check whether a command is available to this shell (may be either an
194# executable or a builtin)
195has() {
196    type "$1" >/dev/null 2>&1
197}
198
199version_ge () {
200    local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
201    local_ver2=$(echo "$2" | tr . ' ')
202    while true; do
203        set x $local_ver1
204        local_first=${2-0}
205        # 'shift 2' if $2 is set, or 'shift' if $2 is not set
206        shift ${2:+2}
207        local_ver1=$*
208        set x $local_ver2
209        # the second argument finished, the first must be greater or equal
210        test $# = 1 && return 0
211        test $local_first -lt $2 && return 1
212        test $local_first -gt $2 && return 0
213        shift ${2:+2}
214        local_ver2=$*
215    done
216}
217
218glob() {
219    eval test -z '"${1#'"$2"'}"'
220}
221
222ld_has() {
223    $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
224}
225
226if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
227then
228  error_exit "main directory cannot contain spaces nor colons"
229fi
230
231# default parameters
232cpu=""
233iasl="iasl"
234interp_prefix="/usr/gnemul/qemu-%M"
235static="no"
236cross_compile="no"
237cross_prefix=""
238audio_drv_list="default"
239block_drv_rw_whitelist=""
240block_drv_ro_whitelist=""
241block_drv_whitelist_tools="no"
242host_cc="cc"
243libs_qga=""
244debug_info="yes"
245lto="false"
246stack_protector=""
247safe_stack=""
248use_containers="yes"
249gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
250
251if test -e "$source_path/.git"
252then
253    git_submodules_action="update"
254else
255    git_submodules_action="ignore"
256fi
257
258git_submodules="ui/keycodemapdb"
259git="git"
260
261# Don't accept a target_list environment variable.
262unset target_list
263unset target_list_exclude
264
265# Default value for a variable defining feature "foo".
266#  * foo="no"  feature will only be used if --enable-foo arg is given
267#  * foo=""    feature will be searched for, and if found, will be used
268#              unless --disable-foo is given
269#  * foo="yes" this value will only be set by --enable-foo flag.
270#              feature will searched for,
271#              if not found, configure exits with error
272#
273# Always add --enable-foo and --disable-foo command line args.
274# Distributions want to ensure that several features are compiled in, and it
275# is impossible without a --enable-foo that exits if a feature is not found.
276
277default_feature=""
278# parse CC options second
279for opt do
280  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
281  case "$opt" in
282      --without-default-features)
283          default_feature="no"
284  ;;
285  esac
286done
287
288EXTRA_CFLAGS=""
289EXTRA_CXXFLAGS=""
290EXTRA_LDFLAGS=""
291
292xen_ctrl_version="$default_feature"
293vhost_kernel="$default_feature"
294vhost_net="$default_feature"
295vhost_crypto="$default_feature"
296vhost_scsi="$default_feature"
297vhost_vsock="$default_feature"
298vhost_user="no"
299vhost_user_fs="$default_feature"
300vhost_vdpa="$default_feature"
301rdma="$default_feature"
302pvrdma="$default_feature"
303gprof="no"
304debug_tcg="no"
305debug="no"
306sanitizers="no"
307tsan="no"
308fortify_source="$default_feature"
309gcov="no"
310EXESUF=""
311modules="no"
312module_upgrades="no"
313prefix="/usr/local"
314qemu_suffix="qemu"
315profiler="no"
316softmmu="yes"
317linux_user=""
318bsd_user=""
319pkgversion=""
320pie=""
321qom_cast_debug="yes"
322trace_backends="log"
323trace_file="trace"
324opengl="$default_feature"
325guest_agent="$default_feature"
326vss_win32_sdk="$default_feature"
327win_sdk="no"
328want_tools="$default_feature"
329coroutine=""
330coroutine_pool="$default_feature"
331debug_stack_usage="no"
332tls_priority="NORMAL"
333live_block_migration=${default_feature:-yes}
334replication=${default_feature:-yes}
335bochs=${default_feature:-yes}
336cloop=${default_feature:-yes}
337dmg=${default_feature:-yes}
338qcow1=${default_feature:-yes}
339vdi=${default_feature:-yes}
340vvfat=${default_feature:-yes}
341qed=${default_feature:-yes}
342parallels=${default_feature:-yes}
343debug_mutex="no"
344plugins="$default_feature"
345rng_none="no"
346secret_keyring="$default_feature"
347meson=""
348meson_args=""
349ninja=""
350gio="$default_feature"
351skip_meson=no
352slirp_smbd="$default_feature"
353
354# The following Meson options are handled manually (still they
355# are included in the automatically generated help message)
356
357# 1. Track which submodules are needed
358capstone="auto"
359fdt="auto"
360slirp="auto"
361
362# 2. Support --with/--without option
363default_devices="true"
364
365# 3. Automatically enable/disable other options
366tcg="enabled"
367cfi="false"
368
369# 4. Detection partly done in configure
370xen=${default_feature:+disabled}
371
372# parse CC options second
373for opt do
374  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
375  case "$opt" in
376  --cross-prefix=*) cross_prefix="$optarg"
377                    cross_compile="yes"
378  ;;
379  --cc=*) CC="$optarg"
380  ;;
381  --cxx=*) CXX="$optarg"
382  ;;
383  --cpu=*) cpu="$optarg"
384  ;;
385  --extra-cflags=*)
386    EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
387    EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
388    ;;
389  --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
390  ;;
391  --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
392  ;;
393  --enable-debug-info) debug_info="yes"
394  ;;
395  --disable-debug-info) debug_info="no"
396  ;;
397  --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
398  ;;
399  --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
400                      eval "cross_cc_cflags_${cc_arch}=\$optarg"
401                      cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
402  ;;
403  --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
404                cc_archs="$cc_archs $cc_arch"
405                eval "cross_cc_${cc_arch}=\$optarg"
406                cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
407  ;;
408  esac
409done
410# OS specific
411# Using uname is really, really broken.  Once we have the right set of checks
412# we can eliminate its usage altogether.
413
414# Preferred compiler:
415#  ${CC} (if set)
416#  ${cross_prefix}gcc (if cross-prefix specified)
417#  system compiler
418if test -z "${CC}${cross_prefix}"; then
419  cc="$host_cc"
420else
421  cc="${CC-${cross_prefix}gcc}"
422fi
423
424if test -z "${CXX}${cross_prefix}"; then
425  cxx="c++"
426else
427  cxx="${CXX-${cross_prefix}g++}"
428fi
429
430ar="${AR-${cross_prefix}ar}"
431as="${AS-${cross_prefix}as}"
432ccas="${CCAS-$cc}"
433cpp="${CPP-$cc -E}"
434objcopy="${OBJCOPY-${cross_prefix}objcopy}"
435ld="${LD-${cross_prefix}ld}"
436ranlib="${RANLIB-${cross_prefix}ranlib}"
437nm="${NM-${cross_prefix}nm}"
438strip="${STRIP-${cross_prefix}strip}"
439windres="${WINDRES-${cross_prefix}windres}"
440pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
441query_pkg_config() {
442    "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
443}
444pkg_config=query_pkg_config
445sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
446
447# default flags for all hosts
448# We use -fwrapv to tell the compiler that we require a C dialect where
449# left shift of signed integers is well defined and has the expected
450# 2s-complement style results. (Both clang and gcc agree that it
451# provides these semantics.)
452QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
453QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
454QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
455QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
456
457QEMU_LDFLAGS=
458
459# Flags that are needed during configure but later taken care of by Meson
460CONFIGURE_CFLAGS="-std=gnu11 -Wall"
461CONFIGURE_LDFLAGS=
462
463
464check_define() {
465cat > $TMPC <<EOF
466#if !defined($1)
467#error $1 not defined
468#endif
469int main(void) { return 0; }
470EOF
471  compile_object
472}
473
474check_include() {
475cat > $TMPC <<EOF
476#include <$1>
477int main(void) { return 0; }
478EOF
479  compile_object
480}
481
482write_c_skeleton() {
483    cat > $TMPC <<EOF
484int main(void) { return 0; }
485EOF
486}
487
488if check_define __linux__ ; then
489  targetos=linux
490elif check_define _WIN32 ; then
491  targetos=windows
492elif check_define __OpenBSD__ ; then
493  targetos=openbsd
494elif check_define __sun__ ; then
495  targetos=sunos
496elif check_define __HAIKU__ ; then
497  targetos=haiku
498elif check_define __FreeBSD__ ; then
499  targetos=freebsd
500elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
501  targetos=gnu/kfreebsd
502elif check_define __DragonFly__ ; then
503  targetos=dragonfly
504elif check_define __NetBSD__; then
505  targetos=netbsd
506elif check_define __APPLE__; then
507  targetos=darwin
508else
509  # This is a fatal error, but don't report it yet, because we
510  # might be going to just print the --help text, or it might
511  # be the result of a missing compiler.
512  targetos=bogus
513fi
514
515# OS specific
516
517mingw32="no"
518bsd="no"
519linux="no"
520solaris="no"
521case $targetos in
522windows)
523  mingw32="yes"
524  plugins="no"
525  pie="no"
526;;
527gnu/kfreebsd)
528  bsd="yes"
529;;
530freebsd)
531  bsd="yes"
532  make="${MAKE-gmake}"
533  # needed for kinfo_getvmmap(3) in libutil.h
534;;
535dragonfly)
536  bsd="yes"
537  make="${MAKE-gmake}"
538;;
539netbsd)
540  bsd="yes"
541  make="${MAKE-gmake}"
542;;
543openbsd)
544  bsd="yes"
545  make="${MAKE-gmake}"
546;;
547darwin)
548  bsd="yes"
549  darwin="yes"
550  # Disable attempts to use ObjectiveC features in os/object.h since they
551  # won't work when we're compiling with gcc as a C compiler.
552  QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
553;;
554sunos)
555  solaris="yes"
556  make="${MAKE-gmake}"
557  smbd="${SMBD-/usr/sfw/sbin/smbd}"
558# needed for CMSG_ macros in sys/socket.h
559  QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
560# needed for TIOCWIN* defines in termios.h
561  QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
562  # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
563  # Note that this check is broken for cross-compilation: if you're
564  # cross-compiling to one of these OSes then you'll need to specify
565  # the correct CPU with the --cpu option.
566  if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
567    cpu="x86_64"
568  fi
569;;
570haiku)
571  pie="no"
572  QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
573;;
574linux)
575  linux="yes"
576  vhost_user=${default_feature:-yes}
577;;
578esac
579
580if test ! -z "$cpu" ; then
581  # command line argument
582  :
583elif check_define __i386__ ; then
584  cpu="i386"
585elif check_define __x86_64__ ; then
586  if check_define __ILP32__ ; then
587    cpu="x32"
588  else
589    cpu="x86_64"
590  fi
591elif check_define __sparc__ ; then
592  if check_define __arch64__ ; then
593    cpu="sparc64"
594  else
595    cpu="sparc"
596  fi
597elif check_define _ARCH_PPC ; then
598  if check_define _ARCH_PPC64 ; then
599    if check_define _LITTLE_ENDIAN ; then
600      cpu="ppc64le"
601    else
602      cpu="ppc64"
603    fi
604  else
605    cpu="ppc"
606  fi
607elif check_define __mips__ ; then
608  cpu="mips"
609elif check_define __s390__ ; then
610  if check_define __s390x__ ; then
611    cpu="s390x"
612  else
613    cpu="s390"
614  fi
615elif check_define __riscv ; then
616  cpu="riscv"
617elif check_define __arm__ ; then
618  cpu="arm"
619elif check_define __aarch64__ ; then
620  cpu="aarch64"
621elif check_define __loongarch64 ; then
622  cpu="loongarch64"
623else
624  cpu=$(uname -m)
625fi
626
627# Normalise host CPU name, set multilib cflags
628# Note that this case should only have supported host CPUs, not guests.
629case "$cpu" in
630  armv*b|armv*l|arm)
631    cpu="arm" ;;
632
633  i386|i486|i586|i686|i86pc|BePC)
634    cpu="i386"
635    CPU_CFLAGS="-m32" ;;
636  x32)
637    cpu="x86_64"
638    CPU_CFLAGS="-mx32" ;;
639  x86_64|amd64)
640    cpu="x86_64"
641    # ??? Only extremely old AMD cpus do not have cmpxchg16b.
642    # If we truly care, we should simply detect this case at
643    # runtime and generate the fallback to serial emulation.
644    CPU_CFLAGS="-m64 -mcx16" ;;
645
646  mips*)
647    cpu="mips" ;;
648
649  ppc)
650    CPU_CFLAGS="-m32" ;;
651  ppc64)
652    CPU_CFLAGS="-m64 -mbig" ;;
653  ppc64le)
654    cpu="ppc64"
655    CPU_CFLAGS="-m64 -mlittle" ;;
656
657  s390)
658    CPU_CFLAGS="-m31" ;;
659  s390x)
660    CPU_CFLAGS="-m64" ;;
661
662  sparc|sun4[cdmuv])
663    cpu="sparc"
664    CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
665  sparc64)
666    CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
667esac
668
669: ${make=${MAKE-make}}
670
671# We prefer python 3.x. A bare 'python' is traditionally
672# python 2.x, but some distros have it as python 3.x, so
673# we check that too
674python=
675explicit_python=no
676for binary in "${PYTHON-python3}" python
677do
678    if has "$binary"
679    then
680        python=$(command -v "$binary")
681        break
682    fi
683done
684
685
686# Check for ancillary tools used in testing
687genisoimage=
688for binary in genisoimage mkisofs
689do
690    if has $binary
691    then
692        genisoimage=$(command -v "$binary")
693        break
694    fi
695done
696
697# Default objcc to clang if available, otherwise use CC
698if has clang; then
699  objcc=clang
700else
701  objcc="$cc"
702fi
703
704if test "$mingw32" = "yes" ; then
705  EXESUF=".exe"
706  # MinGW needs -mthreads for TLS and macro _MT.
707  CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
708  write_c_skeleton;
709  prefix="/qemu"
710  qemu_suffix=""
711  libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
712fi
713
714werror=""
715
716. $source_path/scripts/meson-buildoptions.sh
717
718meson_options=
719meson_option_parse() {
720  meson_options="$meson_options $(_meson_option_parse "$@")"
721  if test $? -eq 1; then
722    echo "ERROR: unknown option $1"
723    echo "Try '$0 --help' for more information"
724    exit 1
725  fi
726}
727
728for opt do
729  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
730  case "$opt" in
731  --help|-h) show_help=yes
732  ;;
733  --version|-V) exec cat $source_path/VERSION
734  ;;
735  --prefix=*) prefix="$optarg"
736  ;;
737  --interp-prefix=*) interp_prefix="$optarg"
738  ;;
739  --cross-prefix=*)
740  ;;
741  --cc=*)
742  ;;
743  --host-cc=*) host_cc="$optarg"
744  ;;
745  --cxx=*)
746  ;;
747  --iasl=*) iasl="$optarg"
748  ;;
749  --objcc=*) objcc="$optarg"
750  ;;
751  --make=*) make="$optarg"
752  ;;
753  --install=*)
754  ;;
755  --python=*) python="$optarg" ; explicit_python=yes
756  ;;
757  --sphinx-build=*) sphinx_build="$optarg"
758  ;;
759  --skip-meson) skip_meson=yes
760  ;;
761  --meson=*) meson="$optarg"
762  ;;
763  --ninja=*) ninja="$optarg"
764  ;;
765  --smbd=*) smbd="$optarg"
766  ;;
767  --extra-cflags=*)
768  ;;
769  --extra-cxxflags=*)
770  ;;
771  --extra-ldflags=*)
772  ;;
773  --enable-debug-info)
774  ;;
775  --disable-debug-info)
776  ;;
777  --cross-cc-*)
778  ;;
779  --enable-modules)
780      modules="yes"
781  ;;
782  --disable-modules)
783      modules="no"
784  ;;
785  --disable-module-upgrades) module_upgrades="no"
786  ;;
787  --enable-module-upgrades) module_upgrades="yes"
788  ;;
789  --cpu=*)
790  ;;
791  --target-list=*) target_list="$optarg"
792                   if test "$target_list_exclude"; then
793                       error_exit "Can't mix --target-list with --target-list-exclude"
794                   fi
795  ;;
796  --target-list-exclude=*) target_list_exclude="$optarg"
797                   if test "$target_list"; then
798                       error_exit "Can't mix --target-list-exclude with --target-list"
799                   fi
800  ;;
801  --with-trace-file=*) trace_file="$optarg"
802  ;;
803  --with-default-devices) default_devices="true"
804  ;;
805  --without-default-devices) default_devices="false"
806  ;;
807  --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
808  ;;
809  --with-devices-*) device_arch=${opt#--with-devices-};
810                    device_arch=${device_arch%%=*}
811                    cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
812                    if test -f "$cf"; then
813                        device_archs="$device_archs $device_arch"
814                        eval "devices_${device_arch}=\$optarg"
815                    else
816                        error_exit "File $cf does not exist"
817                    fi
818  ;;
819  --without-default-features) # processed above
820  ;;
821  --enable-gprof) gprof="yes"
822  ;;
823  --enable-gcov) gcov="yes"
824  ;;
825  --static)
826    static="yes"
827    QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
828  ;;
829  --mandir=*) mandir="$optarg"
830  ;;
831  --bindir=*) bindir="$optarg"
832  ;;
833  --libdir=*) libdir="$optarg"
834  ;;
835  --libexecdir=*) libexecdir="$optarg"
836  ;;
837  --includedir=*) includedir="$optarg"
838  ;;
839  --datadir=*) datadir="$optarg"
840  ;;
841  --with-suffix=*) qemu_suffix="$optarg"
842  ;;
843  --docdir=*) docdir="$optarg"
844  ;;
845  --localedir=*) localedir="$optarg"
846  ;;
847  --sysconfdir=*) sysconfdir="$optarg"
848  ;;
849  --localstatedir=*) local_statedir="$optarg"
850  ;;
851  --firmwarepath=*) firmwarepath="$optarg"
852  ;;
853  --host=*|--build=*|\
854  --disable-dependency-tracking|\
855  --sbindir=*|--sharedstatedir=*|\
856  --oldincludedir=*|--datarootdir=*|--infodir=*|\
857  --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
858    # These switches are silently ignored, for compatibility with
859    # autoconf-generated configure scripts. This allows QEMU's
860    # configure to be used by RPM and similar macros that set
861    # lots of directory switches by default.
862  ;;
863  --disable-qom-cast-debug) qom_cast_debug="no"
864  ;;
865  --enable-qom-cast-debug) qom_cast_debug="yes"
866  ;;
867  --audio-drv-list=*) audio_drv_list="$optarg"
868  ;;
869  --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
870  ;;
871  --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
872  ;;
873  --enable-block-drv-whitelist-in-tools) block_drv_whitelist_tools="yes"
874  ;;
875  --disable-block-drv-whitelist-in-tools) block_drv_whitelist_tools="no"
876  ;;
877  --enable-debug-tcg) debug_tcg="yes"
878  ;;
879  --disable-debug-tcg) debug_tcg="no"
880  ;;
881  --enable-debug)
882      # Enable debugging options that aren't excessively noisy
883      debug_tcg="yes"
884      debug_mutex="yes"
885      debug="yes"
886      fortify_source="no"
887  ;;
888  --enable-sanitizers) sanitizers="yes"
889  ;;
890  --disable-sanitizers) sanitizers="no"
891  ;;
892  --enable-tsan) tsan="yes"
893  ;;
894  --disable-tsan) tsan="no"
895  ;;
896  --disable-slirp) slirp="disabled"
897  ;;
898  --enable-slirp) slirp="enabled"
899  ;;
900  --enable-slirp=git) slirp="internal"
901  ;;
902  --enable-slirp=*) slirp="$optarg"
903  ;;
904  --disable-xen) xen="disabled"
905  ;;
906  --enable-xen) xen="enabled"
907  ;;
908  --disable-tcg) tcg="disabled"
909                 plugins="no"
910  ;;
911  --enable-tcg) tcg="enabled"
912  ;;
913  --enable-profiler) profiler="yes"
914  ;;
915  --disable-system) softmmu="no"
916  ;;
917  --enable-system) softmmu="yes"
918  ;;
919  --disable-user)
920      linux_user="no" ;
921      bsd_user="no" ;
922  ;;
923  --enable-user) ;;
924  --disable-linux-user) linux_user="no"
925  ;;
926  --enable-linux-user) linux_user="yes"
927  ;;
928  --disable-bsd-user) bsd_user="no"
929  ;;
930  --enable-bsd-user) bsd_user="yes"
931  ;;
932  --enable-pie) pie="yes"
933  ;;
934  --disable-pie) pie="no"
935  ;;
936  --enable-werror) werror="yes"
937  ;;
938  --disable-werror) werror="no"
939  ;;
940  --enable-lto) lto="true"
941  ;;
942  --disable-lto) lto="false"
943  ;;
944  --enable-stack-protector) stack_protector="yes"
945  ;;
946  --disable-stack-protector) stack_protector="no"
947  ;;
948  --enable-safe-stack) safe_stack="yes"
949  ;;
950  --disable-safe-stack) safe_stack="no"
951  ;;
952  --enable-cfi)
953      cfi="true";
954      lto="true";
955  ;;
956  --disable-cfi) cfi="false"
957  ;;
958  --disable-fdt) fdt="disabled"
959  ;;
960  --enable-fdt) fdt="enabled"
961  ;;
962  --enable-fdt=git) fdt="internal"
963  ;;
964  --enable-fdt=*) fdt="$optarg"
965  ;;
966  --with-pkgversion=*) pkgversion="$optarg"
967  ;;
968  --with-coroutine=*) coroutine="$optarg"
969  ;;
970  --disable-coroutine-pool) coroutine_pool="no"
971  ;;
972  --enable-coroutine-pool) coroutine_pool="yes"
973  ;;
974  --enable-debug-stack-usage) debug_stack_usage="yes"
975  ;;
976  --disable-vhost-net) vhost_net="no"
977  ;;
978  --enable-vhost-net) vhost_net="yes"
979  ;;
980  --disable-vhost-crypto) vhost_crypto="no"
981  ;;
982  --enable-vhost-crypto) vhost_crypto="yes"
983  ;;
984  --disable-vhost-scsi) vhost_scsi="no"
985  ;;
986  --enable-vhost-scsi) vhost_scsi="yes"
987  ;;
988  --disable-vhost-vsock) vhost_vsock="no"
989  ;;
990  --enable-vhost-vsock) vhost_vsock="yes"
991  ;;
992  --disable-vhost-user-fs) vhost_user_fs="no"
993  ;;
994  --enable-vhost-user-fs) vhost_user_fs="yes"
995  ;;
996  --disable-opengl) opengl="no"
997  ;;
998  --enable-opengl) opengl="yes"
999  ;;
1000  --disable-zlib-test)
1001  ;;
1002  --enable-guest-agent) guest_agent="yes"
1003  ;;
1004  --disable-guest-agent) guest_agent="no"
1005  ;;
1006  --with-vss-sdk) vss_win32_sdk=""
1007  ;;
1008  --with-vss-sdk=*) vss_win32_sdk="$optarg"
1009  ;;
1010  --without-vss-sdk) vss_win32_sdk="no"
1011  ;;
1012  --with-win-sdk) win_sdk=""
1013  ;;
1014  --with-win-sdk=*) win_sdk="$optarg"
1015  ;;
1016  --without-win-sdk) win_sdk="no"
1017  ;;
1018  --enable-tools) want_tools="yes"
1019  ;;
1020  --disable-tools) want_tools="no"
1021  ;;
1022  --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1023      echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1024  ;;
1025  --enable-vhdx|--disable-vhdx)
1026      echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1027  ;;
1028  --enable-uuid|--disable-uuid)
1029      echo "$0: $opt is obsolete, UUID support is always built" >&2
1030  ;;
1031  --tls-priority=*) tls_priority="$optarg"
1032  ;;
1033  --enable-rdma) rdma="yes"
1034  ;;
1035  --disable-rdma) rdma="no"
1036  ;;
1037  --enable-pvrdma) pvrdma="yes"
1038  ;;
1039  --disable-pvrdma) pvrdma="no"
1040  ;;
1041  --disable-live-block-migration) live_block_migration="no"
1042  ;;
1043  --enable-live-block-migration) live_block_migration="yes"
1044  ;;
1045  --disable-replication) replication="no"
1046  ;;
1047  --enable-replication) replication="yes"
1048  ;;
1049  --disable-bochs) bochs="no"
1050  ;;
1051  --enable-bochs) bochs="yes"
1052  ;;
1053  --disable-cloop) cloop="no"
1054  ;;
1055  --enable-cloop) cloop="yes"
1056  ;;
1057  --disable-dmg) dmg="no"
1058  ;;
1059  --enable-dmg) dmg="yes"
1060  ;;
1061  --disable-qcow1) qcow1="no"
1062  ;;
1063  --enable-qcow1) qcow1="yes"
1064  ;;
1065  --disable-vdi) vdi="no"
1066  ;;
1067  --enable-vdi) vdi="yes"
1068  ;;
1069  --disable-vvfat) vvfat="no"
1070  ;;
1071  --enable-vvfat) vvfat="yes"
1072  ;;
1073  --disable-qed) qed="no"
1074  ;;
1075  --enable-qed) qed="yes"
1076  ;;
1077  --disable-parallels) parallels="no"
1078  ;;
1079  --enable-parallels) parallels="yes"
1080  ;;
1081  --disable-vhost-user) vhost_user="no"
1082  ;;
1083  --enable-vhost-user) vhost_user="yes"
1084  ;;
1085  --disable-vhost-vdpa) vhost_vdpa="no"
1086  ;;
1087  --enable-vhost-vdpa) vhost_vdpa="yes"
1088  ;;
1089  --disable-vhost-kernel) vhost_kernel="no"
1090  ;;
1091  --enable-vhost-kernel) vhost_kernel="yes"
1092  ;;
1093  --disable-capstone) capstone="disabled"
1094  ;;
1095  --enable-capstone) capstone="enabled"
1096  ;;
1097  --enable-capstone=git) capstone="internal"
1098  ;;
1099  --enable-capstone=*) capstone="$optarg"
1100  ;;
1101  --with-git=*) git="$optarg"
1102  ;;
1103  --with-git-submodules=*)
1104      git_submodules_action="$optarg"
1105  ;;
1106  --enable-debug-mutex) debug_mutex=yes
1107  ;;
1108  --disable-debug-mutex) debug_mutex=no
1109  ;;
1110  --enable-plugins) if test "$mingw32" = "yes"; then
1111                        error_exit "TCG plugins not currently supported on Windows platforms"
1112                    else
1113                        plugins="yes"
1114                    fi
1115  ;;
1116  --disable-plugins) plugins="no"
1117  ;;
1118  --enable-containers) use_containers="yes"
1119  ;;
1120  --disable-containers) use_containers="no"
1121  ;;
1122  --gdb=*) gdb_bin="$optarg"
1123  ;;
1124  --enable-rng-none) rng_none=yes
1125  ;;
1126  --disable-rng-none) rng_none=no
1127  ;;
1128  --enable-keyring) secret_keyring="yes"
1129  ;;
1130  --disable-keyring) secret_keyring="no"
1131  ;;
1132  --enable-gio) gio=yes
1133  ;;
1134  --disable-gio) gio=no
1135  ;;
1136  --enable-slirp-smbd) slirp_smbd=yes
1137  ;;
1138  --disable-slirp-smbd) slirp_smbd=no
1139  ;;
1140  # backwards compatibility options
1141  --enable-trace-backend=*) meson_option_parse "--enable-trace-backends=$optarg" "$optarg"
1142  ;;
1143  --disable-blobs) meson_option_parse --disable-install-blobs ""
1144  ;;
1145  --enable-tcmalloc) meson_option_parse --enable-malloc=tcmalloc tcmalloc
1146  ;;
1147  --enable-jemalloc) meson_option_parse --enable-malloc=jemalloc jemalloc
1148  ;;
1149  # everything else has the same name in configure and meson
1150  --enable-* | --disable-*) meson_option_parse "$opt" "$optarg"
1151  ;;
1152  *)
1153      echo "ERROR: unknown option $opt"
1154      echo "Try '$0 --help' for more information"
1155      exit 1
1156  ;;
1157  esac
1158done
1159
1160# test for any invalid configuration combinations
1161if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
1162    error_exit "Can't enable plugins on non-TCG builds"
1163fi
1164
1165case $git_submodules_action in
1166    update|validate)
1167        if test ! -e "$source_path/.git"; then
1168            echo "ERROR: cannot $git_submodules_action git submodules without .git"
1169            exit 1
1170        fi
1171    ;;
1172    ignore)
1173        if ! test -f "$source_path/ui/keycodemapdb/README"
1174        then
1175            echo
1176            echo "ERROR: missing GIT submodules"
1177            echo
1178            if test -e "$source_path/.git"; then
1179                echo "--with-git-submodules=ignore specified but submodules were not"
1180                echo "checked out.  Please initialize and update submodules."
1181            else
1182                echo "This is not a GIT checkout but module content appears to"
1183                echo "be missing. Do not use 'git archive' or GitHub download links"
1184                echo "to acquire QEMU source archives. Non-GIT builds are only"
1185                echo "supported with source archives linked from:"
1186                echo
1187                echo "  https://www.qemu.org/download/#source"
1188                echo
1189                echo "Developers working with GIT can use scripts/archive-source.sh"
1190                echo "if they need to create valid source archives."
1191            fi
1192            echo
1193            exit 1
1194        fi
1195    ;;
1196    *)
1197        echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
1198        exit 1
1199    ;;
1200esac
1201
1202libdir="${libdir:-$prefix/lib}"
1203libexecdir="${libexecdir:-$prefix/libexec}"
1204includedir="${includedir:-$prefix/include}"
1205
1206if test "$mingw32" = "yes" ; then
1207    bindir="${bindir:-$prefix}"
1208else
1209    bindir="${bindir:-$prefix/bin}"
1210fi
1211mandir="${mandir:-$prefix/share/man}"
1212datadir="${datadir:-$prefix/share}"
1213docdir="${docdir:-$prefix/share/doc}"
1214sysconfdir="${sysconfdir:-$prefix/etc}"
1215local_statedir="${local_statedir:-$prefix/var}"
1216firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1217localedir="${localedir:-$datadir/locale}"
1218
1219if eval test -z "\${cross_cc_$cpu}"; then
1220    eval "cross_cc_${cpu}=\$cc"
1221    cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1222fi
1223
1224default_target_list=""
1225mak_wilds=""
1226
1227if [ "$linux_user" != no ]; then
1228    if [ "$targetos" = linux ] && [ -d $source_path/linux-user/include/host/$cpu ]; then
1229        linux_user=yes
1230    elif [ "$linux_user" = yes ]; then
1231        error_exit "linux-user not supported on this architecture"
1232    fi
1233fi
1234if [ "$bsd_user" != no ]; then
1235    if [ "$bsd_user" = "" ]; then
1236        test $targetos = freebsd && bsd_user=yes
1237    fi
1238    if [ "$bsd_user" = yes ] && ! [ -d $source_path/bsd-user/$targetos ]; then
1239        error_exit "bsd-user not supported on this host OS"
1240    fi
1241fi
1242if [ "$softmmu" = "yes" ]; then
1243    mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
1244fi
1245if [ "$linux_user" = "yes" ]; then
1246    mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
1247fi
1248if [ "$bsd_user" = "yes" ]; then
1249    mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
1250fi
1251
1252for config in $mak_wilds; do
1253    target="$(basename "$config" .mak)"
1254    if echo "$target_list_exclude" | grep -vq "$target"; then
1255        default_target_list="${default_target_list} $target"
1256    fi
1257done
1258
1259if test x"$show_help" = x"yes" ; then
1260cat << EOF
1261
1262Usage: configure [options]
1263Options: [defaults in brackets after descriptions]
1264
1265Standard options:
1266  --help                   print this message
1267  --prefix=PREFIX          install in PREFIX [$prefix]
1268  --interp-prefix=PREFIX   where to find shared libraries, etc.
1269                           use %M for cpu name [$interp_prefix]
1270  --target-list=LIST       set target list (default: build all)
1271$(echo Available targets: $default_target_list | \
1272  fold -s -w 53 | sed -e 's/^/                           /')
1273  --target-list-exclude=LIST exclude a set of targets from the default target-list
1274
1275Advanced options (experts only):
1276  --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1277  --cc=CC                  use C compiler CC [$cc]
1278  --iasl=IASL              use ACPI compiler IASL [$iasl]
1279  --host-cc=CC             use C compiler CC [$host_cc] for code run at
1280                           build time
1281  --cxx=CXX                use C++ compiler CXX [$cxx]
1282  --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1283  --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
1284  --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
1285  --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1286  --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1287  --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
1288  --make=MAKE              use specified make [$make]
1289  --python=PYTHON          use specified python [$python]
1290  --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1291  --meson=MESON            use specified meson [$meson]
1292  --ninja=NINJA            use specified ninja [$ninja]
1293  --smbd=SMBD              use specified smbd [$smbd]
1294  --with-git=GIT           use specified git [$git]
1295  --with-git-submodules=update   update git submodules (default if .git dir exists)
1296  --with-git-submodules=validate fail if git submodules are not up to date
1297  --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1298  --static                 enable static build [$static]
1299  --mandir=PATH            install man pages in PATH
1300  --datadir=PATH           install firmware in PATH/$qemu_suffix
1301  --localedir=PATH         install translation in PATH/$qemu_suffix
1302  --docdir=PATH            install documentation in PATH/$qemu_suffix
1303  --bindir=PATH            install binaries in PATH
1304  --libdir=PATH            install libraries in PATH
1305  --libexecdir=PATH        install helper binaries in PATH
1306  --sysconfdir=PATH        install config in PATH/$qemu_suffix
1307  --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1308  --firmwarepath=PATH      search PATH for firmware files
1309  --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1310  --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1311  --with-pkgversion=VERS   use specified string as sub-version of the package
1312  --without-default-features default all --enable-* options to "disabled"
1313  --without-default-devices  do not include any device that is not needed to
1314                           start the emulator (only use if you are including
1315                           desired devices in configs/devices/)
1316  --with-devices-ARCH=NAME override default configs/devices
1317  --enable-debug           enable common debug build options
1318  --enable-sanitizers      enable default sanitizers
1319  --enable-tsan            enable thread sanitizer
1320  --disable-werror         disable compilation abort on warning
1321  --disable-stack-protector disable compiler-provided stack protection
1322  --audio-drv-list=LIST    set audio drivers to try if -audiodev is not used
1323  --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1324  --block-drv-rw-whitelist=L
1325                           set block driver read-write whitelist
1326                           (by default affects only QEMU, not tools like qemu-img)
1327  --block-drv-ro-whitelist=L
1328                           set block driver read-only whitelist
1329                           (by default affects only QEMU, not tools like qemu-img)
1330  --enable-block-drv-whitelist-in-tools
1331                           use block whitelist also in tools instead of only QEMU
1332  --with-trace-file=NAME   Full PATH,NAME of file to store traces
1333                           Default:trace-<pid>
1334  --cpu=CPU                Build for host CPU [$cpu]
1335  --with-coroutine=BACKEND coroutine backend. Supported options:
1336                           ucontext, sigaltstack, windows
1337  --enable-gcov            enable test coverage analysis with gcov
1338  --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1339  --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1340  --tls-priority           default TLS protocol/cipher priority string
1341  --enable-gprof           QEMU profiling with gprof
1342  --enable-profiler        profiler support
1343  --enable-debug-stack-usage
1344                           track the maximum stack usage of stacks created by qemu_alloc_stack
1345  --enable-plugins
1346                           enable plugins via shared library loading
1347  --disable-containers     don't use containers for cross-building
1348  --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1349EOF
1350  meson_options_help
1351cat << EOF
1352  system          all system emulation targets
1353  user            supported user emulation targets
1354  linux-user      all linux usermode emulation targets
1355  bsd-user        all BSD usermode emulation targets
1356  guest-agent     build the QEMU Guest Agent
1357  pie             Position Independent Executables
1358  modules         modules support (non-Windows)
1359  module-upgrades try to load modules from alternate paths for upgrades
1360  debug-tcg       TCG debugging (default is disabled)
1361  debug-info      debugging information
1362  lto             Enable Link-Time Optimization.
1363  safe-stack      SafeStack Stack Smash Protection. Depends on
1364                  clang/llvm >= 3.7 and requires coroutine backend ucontext.
1365  rdma            Enable RDMA-based migration
1366  pvrdma          Enable PVRDMA support
1367  vhost-net       vhost-net kernel acceleration support
1368  vhost-vsock     virtio sockets device support
1369  vhost-scsi      vhost-scsi kernel target support
1370  vhost-crypto    vhost-user-crypto backend support
1371  vhost-kernel    vhost kernel backend support
1372  vhost-user      vhost-user backend support
1373  vhost-vdpa      vhost-vdpa kernel backend support
1374  live-block-migration   Block migration in the main migration stream
1375  coroutine-pool  coroutine freelist (better performance)
1376  replication     replication support
1377  opengl          opengl support
1378  qom-cast-debug  cast debugging support
1379  tools           build qemu-io, qemu-nbd and qemu-img tools
1380  bochs           bochs image format support
1381  cloop           cloop image format support
1382  dmg             dmg image format support
1383  qcow1           qcow v1 image format support
1384  vdi             vdi image format support
1385  vvfat           vvfat image format support
1386  qed             qed image format support
1387  parallels       parallels image format support
1388  debug-mutex     mutex debugging support
1389  rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1390  gio             libgio support
1391  slirp-smbd      use smbd (at path --smbd=*) in slirp networking
1392
1393NOTE: The object files are built at the place where configure is launched
1394EOF
1395exit 0
1396fi
1397
1398# Remove old dependency files to make sure that they get properly regenerated
1399rm -f */config-devices.mak.d
1400
1401if test -z "$python"
1402then
1403    error_exit "Python not found. Use --python=/path/to/python"
1404fi
1405if ! has "$make"
1406then
1407    error_exit "GNU make ($make) not found"
1408fi
1409
1410# Note that if the Python conditional here evaluates True we will exit
1411# with status 1 which is a shell 'false' value.
1412if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1413  error_exit "Cannot use '$python', Python >= 3.6 is required." \
1414      "Use --python=/path/to/python to specify a supported Python."
1415fi
1416
1417# Preserve python version since some functionality is dependent on it
1418python_version=$($python -c 'import sys; print("%d.%d.%d" % (sys.version_info[0], sys.version_info[1], sys.version_info[2]))' 2>/dev/null)
1419
1420# Suppress writing compiled files
1421python="$python -B"
1422
1423if test -z "$meson"; then
1424    if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.59.3; then
1425        meson=meson
1426    elif test $git_submodules_action != 'ignore' ; then
1427        meson=git
1428    elif test -e "${source_path}/meson/meson.py" ; then
1429        meson=internal
1430    else
1431        if test "$explicit_python" = yes; then
1432            error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1433        else
1434            error_exit "Meson not found.  Use --meson=/path/to/meson"
1435        fi
1436    fi
1437else
1438    # Meson uses its own Python interpreter to invoke other Python scripts,
1439    # but the user wants to use the one they specified with --python.
1440    #
1441    # We do not want to override the distro Python interpreter (and sometimes
1442    # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1443    # just require --meson=git|internal together with --python.
1444    if test "$explicit_python" = yes; then
1445        case "$meson" in
1446            git | internal) ;;
1447            *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1448        esac
1449    fi
1450fi
1451
1452if test "$meson" = git; then
1453    git_submodules="${git_submodules} meson"
1454fi
1455
1456case "$meson" in
1457    git | internal)
1458        meson="$python ${source_path}/meson/meson.py"
1459        ;;
1460    *) meson=$(command -v "$meson") ;;
1461esac
1462
1463# Probe for ninja
1464
1465if test -z "$ninja"; then
1466    for c in ninja ninja-build samu; do
1467        if has $c; then
1468            ninja=$(command -v "$c")
1469            break
1470        fi
1471    done
1472    if test -z "$ninja"; then
1473      error_exit "Cannot find Ninja"
1474    fi
1475fi
1476
1477# Check that the C compiler works. Doing this here before testing
1478# the host CPU ensures that we had a valid CC to autodetect the
1479# $cpu var (and we should bail right here if that's not the case).
1480# It also allows the help message to be printed without a CC.
1481write_c_skeleton;
1482if compile_object ; then
1483  : C compiler works ok
1484else
1485    error_exit "\"$cc\" either does not exist or does not work"
1486fi
1487if ! compile_prog ; then
1488    error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1489fi
1490
1491# Consult white-list to determine whether to enable werror
1492# by default.  Only enable by default for git builds
1493if test -z "$werror" ; then
1494    if test "$git_submodules_action" != "ignore" && \
1495        { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1496        werror="yes"
1497    else
1498        werror="no"
1499    fi
1500fi
1501
1502if test "$targetos" = "bogus"; then
1503    # Now that we know that we're not printing the help and that
1504    # the compiler works (so the results of the check_defines we used
1505    # to identify the OS are reliable), if we didn't recognize the
1506    # host OS we should stop now.
1507    error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1508fi
1509
1510# Check whether the compiler matches our minimum requirements:
1511cat > $TMPC << EOF
1512#if defined(__clang_major__) && defined(__clang_minor__)
1513# ifdef __apple_build_version__
1514#  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1515#   error You need at least XCode Clang v10.0 to compile QEMU
1516#  endif
1517# else
1518#  if __clang_major__ < 6 || (__clang_major__ == 6 && __clang_minor__ < 0)
1519#   error You need at least Clang v6.0 to compile QEMU
1520#  endif
1521# endif
1522#elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1523# if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1524#  error You need at least GCC v7.4.0 to compile QEMU
1525# endif
1526#else
1527# error You either need GCC or Clang to compiler QEMU
1528#endif
1529int main (void) { return 0; }
1530EOF
1531if ! compile_prog "" "" ; then
1532    error_exit "You need at least GCC v7.4 or Clang v6.0 (or XCode Clang v10.0)"
1533fi
1534
1535# Accumulate -Wfoo and -Wno-bar separately.
1536# We will list all of the enable flags first, and the disable flags second.
1537# Note that we do not add -Werror, because that would enable it for all
1538# configure tests. If a configure test failed due to -Werror this would
1539# just silently disable some features, so it's too error prone.
1540
1541warn_flags=
1542add_to warn_flags -Wold-style-declaration
1543add_to warn_flags -Wold-style-definition
1544add_to warn_flags -Wtype-limits
1545add_to warn_flags -Wformat-security
1546add_to warn_flags -Wformat-y2k
1547add_to warn_flags -Winit-self
1548add_to warn_flags -Wignored-qualifiers
1549add_to warn_flags -Wempty-body
1550add_to warn_flags -Wnested-externs
1551add_to warn_flags -Wendif-labels
1552add_to warn_flags -Wexpansion-to-defined
1553add_to warn_flags -Wimplicit-fallthrough=2
1554
1555nowarn_flags=
1556add_to nowarn_flags -Wno-initializer-overrides
1557add_to nowarn_flags -Wno-missing-include-dirs
1558add_to nowarn_flags -Wno-shift-negative-value
1559add_to nowarn_flags -Wno-string-plus-int
1560add_to nowarn_flags -Wno-typedef-redefinition
1561add_to nowarn_flags -Wno-tautological-type-limit-compare
1562add_to nowarn_flags -Wno-psabi
1563
1564gcc_flags="$warn_flags $nowarn_flags"
1565
1566cc_has_warning_flag() {
1567    write_c_skeleton;
1568
1569    # Use the positive sense of the flag when testing for -Wno-wombat
1570    # support (gcc will happily accept the -Wno- form of unknown
1571    # warning options).
1572    optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1573    compile_prog "-Werror $optflag" ""
1574}
1575
1576for flag in $gcc_flags; do
1577    if cc_has_warning_flag $flag ; then
1578        QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1579    fi
1580done
1581
1582if test "$stack_protector" != "no"; then
1583  cat > $TMPC << EOF
1584int main(int argc, char *argv[])
1585{
1586    char arr[64], *p = arr, *c = argv[0];
1587    while (*c) {
1588        *p++ = *c++;
1589    }
1590    return 0;
1591}
1592EOF
1593  gcc_flags="-fstack-protector-strong -fstack-protector-all"
1594  sp_on=0
1595  for flag in $gcc_flags; do
1596    # We need to check both a compile and a link, since some compiler
1597    # setups fail only on a .c->.o compile and some only at link time
1598    if compile_object "-Werror $flag" &&
1599       compile_prog "-Werror $flag" ""; then
1600      QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1601      QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1602      sp_on=1
1603      break
1604    fi
1605  done
1606  if test "$stack_protector" = yes; then
1607    if test $sp_on = 0; then
1608      error_exit "Stack protector not supported"
1609    fi
1610  fi
1611fi
1612
1613# Disable -Wmissing-braces on older compilers that warn even for
1614# the "universal" C zero initializer {0}.
1615cat > $TMPC << EOF
1616struct {
1617  int a[2];
1618} x = {0};
1619EOF
1620if compile_object "-Werror" "" ; then
1621  :
1622else
1623  QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
1624fi
1625
1626# Our module code doesn't support Windows
1627if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1628  error_exit "Modules are not available for Windows"
1629fi
1630
1631# module_upgrades is only reasonable if modules are enabled
1632if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
1633  error_exit "Can't enable module-upgrades as Modules are not enabled"
1634fi
1635
1636# Static linking is not possible with plugins, modules or PIE
1637if test "$static" = "yes" ; then
1638  if test "$modules" = "yes" ; then
1639    error_exit "static and modules are mutually incompatible"
1640  fi
1641  if test "$plugins" = "yes"; then
1642    error_exit "static and plugins are mutually incompatible"
1643  else
1644    plugins="no"
1645  fi
1646fi
1647test "$plugins" = "" && plugins=yes
1648
1649cat > $TMPC << EOF
1650
1651#ifdef __linux__
1652#  define THREAD __thread
1653#else
1654#  define THREAD
1655#endif
1656static THREAD int tls_var;
1657int main(void) { return tls_var; }
1658EOF
1659
1660# Check we support -fno-pie and -no-pie first; we will need the former for
1661# building ROMs, and both for everything if --disable-pie is passed.
1662if compile_prog "-Werror -fno-pie" "-no-pie"; then
1663  CFLAGS_NOPIE="-fno-pie"
1664  LDFLAGS_NOPIE="-no-pie"
1665fi
1666
1667if test "$static" = "yes"; then
1668  if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1669    CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1670    QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
1671    pie="yes"
1672  elif test "$pie" = "yes"; then
1673    error_exit "-static-pie not available due to missing toolchain support"
1674  else
1675    QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
1676    pie="no"
1677  fi
1678elif test "$pie" = "no"; then
1679  CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
1680  CONFIGURE_LDFLAGS="$LDFLAGS_NOPIE $CONFIGURE_LDFLAGS"
1681elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1682  CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1683  CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1684  pie="yes"
1685elif test "$pie" = "yes"; then
1686  error_exit "PIE not available due to missing toolchain support"
1687else
1688  echo "Disabling PIE due to missing toolchain support"
1689  pie="no"
1690fi
1691
1692# Detect support for PT_GNU_RELRO + DT_BIND_NOW.
1693# The combination is known as "full relro", because .got.plt is read-only too.
1694if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
1695  QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
1696fi
1697
1698##########################################
1699# __sync_fetch_and_and requires at least -march=i486. Many toolchains
1700# use i686 as default anyway, but for those that don't, an explicit
1701# specification is necessary
1702
1703if test "$cpu" = "i386"; then
1704  cat > $TMPC << EOF
1705static int sfaa(int *ptr)
1706{
1707  return __sync_fetch_and_and(ptr, 0);
1708}
1709
1710int main(void)
1711{
1712  int val = 42;
1713  val = __sync_val_compare_and_swap(&val, 0, 1);
1714  sfaa(&val);
1715  return val;
1716}
1717EOF
1718  if ! compile_prog "" "" ; then
1719    QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1720  fi
1721fi
1722
1723if test "$tcg" = "enabled"; then
1724    git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1725    git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1726fi
1727
1728if test -z "${target_list+xxx}" ; then
1729    default_targets=yes
1730    for target in $default_target_list; do
1731        target_list="$target_list $target"
1732    done
1733    target_list="${target_list# }"
1734else
1735    default_targets=no
1736    target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1737    for target in $target_list; do
1738        # Check that we recognised the target name; this allows a more
1739        # friendly error message than if we let it fall through.
1740        case " $default_target_list " in
1741            *" $target "*)
1742                ;;
1743            *)
1744                error_exit "Unknown target name '$target'"
1745                ;;
1746        esac
1747    done
1748fi
1749
1750# see if system emulation was really requested
1751case " $target_list " in
1752  *"-softmmu "*) softmmu=yes
1753  ;;
1754  *) softmmu=no
1755  ;;
1756esac
1757
1758feature_not_found() {
1759  feature=$1
1760  remedy=$2
1761
1762  error_exit "User requested feature $feature" \
1763      "configure was not able to find it." \
1764      "$remedy"
1765}
1766
1767# ---
1768# big/little endian test
1769cat > $TMPC << EOF
1770#include <stdio.h>
1771short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
1772short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
1773int main(int argc, char *argv[])
1774{
1775    return printf("%s %s\n", (char *)big_endian, (char *)little_endian);
1776}
1777EOF
1778
1779if compile_prog ; then
1780    if strings -a $TMPE | grep -q BiGeNdIaN ; then
1781        bigendian="yes"
1782    elif strings -a $TMPE | grep -q LiTtLeEnDiAn ; then
1783        bigendian="no"
1784    else
1785        echo big/little test failed
1786        exit 1
1787    fi
1788else
1789    echo big/little test failed
1790    exit 1
1791fi
1792
1793##########################################
1794# system tools
1795if test -z "$want_tools"; then
1796    if test "$softmmu" = "no"; then
1797        want_tools=no
1798    else
1799        want_tools=yes
1800    fi
1801fi
1802
1803#########################################
1804# vhost interdependencies and host support
1805
1806# vhost backends
1807if test "$vhost_user" = "yes" && test "$linux" != "yes"; then
1808  error_exit "vhost-user is only available on Linux"
1809fi
1810test "$vhost_vdpa" = "" && vhost_vdpa=$linux
1811if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
1812  error_exit "vhost-vdpa is only available on Linux"
1813fi
1814test "$vhost_kernel" = "" && vhost_kernel=$linux
1815if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
1816  error_exit "vhost-kernel is only available on Linux"
1817fi
1818
1819# vhost-kernel devices
1820test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
1821if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
1822  error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
1823fi
1824test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
1825if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
1826  error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
1827fi
1828
1829# vhost-user backends
1830test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
1831if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
1832  error_exit "--enable-vhost-net-user requires --enable-vhost-user"
1833fi
1834test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
1835if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
1836  error_exit "--enable-vhost-crypto requires --enable-vhost-user"
1837fi
1838test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
1839if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
1840  error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
1841fi
1842#vhost-vdpa backends
1843test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
1844if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
1845  error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
1846fi
1847
1848# OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
1849if test "$vhost_net" = ""; then
1850  test "$vhost_net_user" = "yes" && vhost_net=yes
1851  test "$vhost_net_vdpa" = "yes" && vhost_net=yes
1852  test "$vhost_kernel" = "yes" && vhost_net=yes
1853fi
1854
1855##########################################
1856# pkg-config probe
1857
1858if ! has "$pkg_config_exe"; then
1859  error_exit "pkg-config binary '$pkg_config_exe' not found"
1860fi
1861
1862##########################################
1863# xen probe
1864
1865if test "$xen" != "disabled" ; then
1866  # Check whether Xen library path is specified via --extra-ldflags to avoid
1867  # overriding this setting with pkg-config output. If not, try pkg-config
1868  # to obtain all needed flags.
1869
1870  if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
1871     $pkg_config --exists xencontrol ; then
1872    xen_ctrl_version="$(printf '%d%02d%02d' \
1873      $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
1874    xen=enabled
1875    xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
1876    xen_pc="$xen_pc xenevtchn xendevicemodel"
1877    if $pkg_config --exists xentoolcore; then
1878      xen_pc="$xen_pc xentoolcore"
1879    fi
1880    xen_cflags="$($pkg_config --cflags $xen_pc)"
1881    xen_libs="$($pkg_config --libs $xen_pc)"
1882  else
1883
1884    xen_libs="-lxenstore -lxenctrl"
1885    xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
1886
1887    # First we test whether Xen headers and libraries are available.
1888    # If no, we are done and there is no Xen support.
1889    # If yes, more tests are run to detect the Xen version.
1890
1891    # Xen (any)
1892    cat > $TMPC <<EOF
1893#include <xenctrl.h>
1894int main(void) {
1895  return 0;
1896}
1897EOF
1898    if ! compile_prog "" "$xen_libs" ; then
1899      # Xen not found
1900      if test "$xen" = "enabled" ; then
1901        feature_not_found "xen" "Install xen devel"
1902      fi
1903      xen=disabled
1904
1905    # Xen unstable
1906    elif
1907        cat > $TMPC <<EOF &&
1908#undef XC_WANT_COMPAT_DEVICEMODEL_API
1909#define __XEN_TOOLS__
1910#include <xendevicemodel.h>
1911#include <xenforeignmemory.h>
1912int main(void) {
1913  xendevicemodel_handle *xd;
1914  xenforeignmemory_handle *xfmem;
1915
1916  xd = xendevicemodel_open(0, 0);
1917  xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
1918
1919  xfmem = xenforeignmemory_open(0, 0);
1920  xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
1921
1922  return 0;
1923}
1924EOF
1925        compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
1926      then
1927      xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
1928      xen_ctrl_version=41100
1929      xen=enabled
1930    elif
1931        cat > $TMPC <<EOF &&
1932#undef XC_WANT_COMPAT_MAP_FOREIGN_API
1933#include <xenforeignmemory.h>
1934#include <xentoolcore.h>
1935int main(void) {
1936  xenforeignmemory_handle *xfmem;
1937
1938  xfmem = xenforeignmemory_open(0, 0);
1939  xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
1940  xentoolcore_restrict_all(0);
1941
1942  return 0;
1943}
1944EOF
1945        compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
1946      then
1947      xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
1948      xen_ctrl_version=41000
1949      xen=enabled
1950    elif
1951        cat > $TMPC <<EOF &&
1952#undef XC_WANT_COMPAT_DEVICEMODEL_API
1953#define __XEN_TOOLS__
1954#include <xendevicemodel.h>
1955int main(void) {
1956  xendevicemodel_handle *xd;
1957
1958  xd = xendevicemodel_open(0, 0);
1959  xendevicemodel_close(xd);
1960
1961  return 0;
1962}
1963EOF
1964        compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
1965      then
1966      xen_stable_libs="-lxendevicemodel $xen_stable_libs"
1967      xen_ctrl_version=40900
1968      xen=enabled
1969    elif
1970        cat > $TMPC <<EOF &&
1971/*
1972 * If we have stable libs the we don't want the libxc compat
1973 * layers, regardless of what CFLAGS we may have been given.
1974 *
1975 * Also, check if xengnttab_grant_copy_segment_t is defined and
1976 * grant copy operation is implemented.
1977 */
1978#undef XC_WANT_COMPAT_EVTCHN_API
1979#undef XC_WANT_COMPAT_GNTTAB_API
1980#undef XC_WANT_COMPAT_MAP_FOREIGN_API
1981#include <xenctrl.h>
1982#include <xenstore.h>
1983#include <xenevtchn.h>
1984#include <xengnttab.h>
1985#include <xenforeignmemory.h>
1986#include <stdint.h>
1987#include <xen/hvm/hvm_info_table.h>
1988#if !defined(HVM_MAX_VCPUS)
1989# error HVM_MAX_VCPUS not defined
1990#endif
1991int main(void) {
1992  xc_interface *xc = NULL;
1993  xenforeignmemory_handle *xfmem;
1994  xenevtchn_handle *xe;
1995  xengnttab_handle *xg;
1996  xengnttab_grant_copy_segment_t* seg = NULL;
1997
1998  xs_daemon_open();
1999
2000  xc = xc_interface_open(0, 0, 0);
2001  xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2002  xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2003  xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2004  xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2005
2006  xfmem = xenforeignmemory_open(0, 0);
2007  xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2008
2009  xe = xenevtchn_open(0, 0);
2010  xenevtchn_fd(xe);
2011
2012  xg = xengnttab_open(0, 0);
2013  xengnttab_grant_copy(xg, 0, seg);
2014
2015  return 0;
2016}
2017EOF
2018        compile_prog "" "$xen_libs $xen_stable_libs"
2019      then
2020      xen_ctrl_version=40800
2021      xen=enabled
2022    elif
2023        cat > $TMPC <<EOF &&
2024/*
2025 * If we have stable libs the we don't want the libxc compat
2026 * layers, regardless of what CFLAGS we may have been given.
2027 */
2028#undef XC_WANT_COMPAT_EVTCHN_API
2029#undef XC_WANT_COMPAT_GNTTAB_API
2030#undef XC_WANT_COMPAT_MAP_FOREIGN_API
2031#include <xenctrl.h>
2032#include <xenstore.h>
2033#include <xenevtchn.h>
2034#include <xengnttab.h>
2035#include <xenforeignmemory.h>
2036#include <stdint.h>
2037#include <xen/hvm/hvm_info_table.h>
2038#if !defined(HVM_MAX_VCPUS)
2039# error HVM_MAX_VCPUS not defined
2040#endif
2041int main(void) {
2042  xc_interface *xc = NULL;
2043  xenforeignmemory_handle *xfmem;
2044  xenevtchn_handle *xe;
2045  xengnttab_handle *xg;
2046
2047  xs_daemon_open();
2048
2049  xc = xc_interface_open(0, 0, 0);
2050  xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2051  xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2052  xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2053  xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2054
2055  xfmem = xenforeignmemory_open(0, 0);
2056  xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2057
2058  xe = xenevtchn_open(0, 0);
2059  xenevtchn_fd(xe);
2060
2061  xg = xengnttab_open(0, 0);
2062  xengnttab_map_grant_ref(xg, 0, 0, 0);
2063
2064  return 0;
2065}
2066EOF
2067        compile_prog "" "$xen_libs $xen_stable_libs"
2068      then
2069      xen_ctrl_version=40701
2070      xen=enabled
2071
2072    # Xen 4.6
2073    elif
2074        cat > $TMPC <<EOF &&
2075#include <xenctrl.h>
2076#include <xenstore.h>
2077#include <stdint.h>
2078#include <xen/hvm/hvm_info_table.h>
2079#if !defined(HVM_MAX_VCPUS)
2080# error HVM_MAX_VCPUS not defined
2081#endif
2082int main(void) {
2083  xc_interface *xc;
2084  xs_daemon_open();
2085  xc = xc_interface_open(0, 0, 0);
2086  xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2087  xc_gnttab_open(NULL, 0);
2088  xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2089  xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2090  xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2091  xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2092  return 0;
2093}
2094EOF
2095        compile_prog "" "$xen_libs"
2096      then
2097      xen_ctrl_version=40600
2098      xen=enabled
2099
2100    # Xen 4.5
2101    elif
2102        cat > $TMPC <<EOF &&
2103#include <xenctrl.h>
2104#include <xenstore.h>
2105#include <stdint.h>
2106#include <xen/hvm/hvm_info_table.h>
2107#if !defined(HVM_MAX_VCPUS)
2108# error HVM_MAX_VCPUS not defined
2109#endif
2110int main(void) {
2111  xc_interface *xc;
2112  xs_daemon_open();
2113  xc = xc_interface_open(0, 0, 0);
2114  xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2115  xc_gnttab_open(NULL, 0);
2116  xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2117  xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2118  xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2119  return 0;
2120}
2121EOF
2122        compile_prog "" "$xen_libs"
2123      then
2124      xen_ctrl_version=40500
2125      xen=enabled
2126
2127    elif
2128        cat > $TMPC <<EOF &&
2129#include <xenctrl.h>
2130#include <xenstore.h>
2131#include <stdint.h>
2132#include <xen/hvm/hvm_info_table.h>
2133#if !defined(HVM_MAX_VCPUS)
2134# error HVM_MAX_VCPUS not defined
2135#endif
2136int main(void) {
2137  xc_interface *xc;
2138  xs_daemon_open();
2139  xc = xc_interface_open(0, 0, 0);
2140  xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2141  xc_gnttab_open(NULL, 0);
2142  xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2143  xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2144  return 0;
2145}
2146EOF
2147        compile_prog "" "$xen_libs"
2148      then
2149      xen_ctrl_version=40200
2150      xen=enabled
2151
2152    else
2153      if test "$xen" = "enabled" ; then
2154        feature_not_found "xen (unsupported version)" \
2155                          "Install a supported xen (xen 4.2 or newer)"
2156      fi
2157      xen=disabled
2158    fi
2159
2160    if test "$xen" = enabled; then
2161      if test $xen_ctrl_version -ge 40701  ; then
2162        xen_libs="$xen_libs $xen_stable_libs "
2163      fi
2164    fi
2165  fi
2166fi
2167
2168##########################################
2169# RDMA needs OpenFabrics libraries
2170if test "$rdma" != "no" ; then
2171  cat > $TMPC <<EOF
2172#include <rdma/rdma_cma.h>
2173int main(void) { return 0; }
2174EOF
2175  rdma_libs="-lrdmacm -libverbs -libumad"
2176  if compile_prog "" "$rdma_libs" ; then
2177    rdma="yes"
2178  else
2179    if test "$rdma" = "yes" ; then
2180        error_exit \
2181            " OpenFabrics librdmacm/libibverbs/libibumad not present." \
2182            " Your options:" \
2183            "  (1) Fast: Install infiniband packages (devel) from your distro." \
2184            "  (2) Cleanest: Install libraries from www.openfabrics.org" \
2185            "  (3) Also: Install softiwarp if you don't have RDMA hardware"
2186    fi
2187    rdma="no"
2188  fi
2189fi
2190
2191##########################################
2192# PVRDMA detection
2193
2194cat > $TMPC <<EOF &&
2195#include <sys/mman.h>
2196
2197int
2198main(void)
2199{
2200    char buf = 0;
2201    void *addr = &buf;
2202    addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
2203
2204    return 0;
2205}
2206EOF
2207
2208if test "$rdma" = "yes" ; then
2209    case "$pvrdma" in
2210    "")
2211        if compile_prog "" ""; then
2212            pvrdma="yes"
2213        else
2214            pvrdma="no"
2215        fi
2216        ;;
2217    "yes")
2218        if ! compile_prog "" ""; then
2219            error_exit "PVRDMA is not supported since mremap is not implemented"
2220        fi
2221        pvrdma="yes"
2222        ;;
2223    "no")
2224        pvrdma="no"
2225        ;;
2226    esac
2227else
2228    if test "$pvrdma" = "yes" ; then
2229        error_exit "PVRDMA requires rdma suppport"
2230    fi
2231    pvrdma="no"
2232fi
2233
2234# Let's see if enhanced reg_mr is supported
2235if test "$pvrdma" = "yes" ; then
2236
2237cat > $TMPC <<EOF &&
2238#include <infiniband/verbs.h>
2239
2240int
2241main(void)
2242{
2243    struct ibv_mr *mr;
2244    struct ibv_pd *pd = NULL;
2245    size_t length = 10;
2246    uint64_t iova = 0;
2247    int access = 0;
2248    void *addr = NULL;
2249
2250    mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
2251
2252    ibv_dereg_mr(mr);
2253
2254    return 0;
2255}
2256EOF
2257    if ! compile_prog "" "-libverbs"; then
2258        QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
2259    fi
2260fi
2261
2262##########################################
2263# glib support probe
2264
2265glib_req_ver=2.56
2266glib_modules=gthread-2.0
2267if test "$modules" = yes; then
2268    glib_modules="$glib_modules gmodule-export-2.0"
2269elif test "$plugins" = "yes"; then
2270    glib_modules="$glib_modules gmodule-no-export-2.0"
2271fi
2272
2273for i in $glib_modules; do
2274    if $pkg_config --atleast-version=$glib_req_ver $i; then
2275        glib_cflags=$($pkg_config --cflags $i)
2276        glib_libs=$($pkg_config --libs $i)
2277    else
2278        error_exit "glib-$glib_req_ver $i is required to compile QEMU"
2279    fi
2280done
2281
2282# This workaround is required due to a bug in pkg-config file for glib as it
2283# doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
2284
2285if test "$static" = yes && test "$mingw32" = yes; then
2286    glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
2287fi
2288
2289if ! test "$gio" = "no"; then
2290    pass=no
2291    if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
2292        gio_cflags=$($pkg_config --cflags gio-2.0)
2293        gio_libs=$($pkg_config --libs gio-2.0)
2294        gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
2295        if ! has "$gdbus_codegen"; then
2296            gdbus_codegen=
2297        fi
2298        # Check that the libraries actually work -- Ubuntu 18.04 ships
2299        # with pkg-config --static --libs data for gio-2.0 that is missing
2300        # -lblkid and will give a link error.
2301        cat > $TMPC <<EOF
2302#include <gio/gio.h>
2303int main(void)
2304{
2305    g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
2306    return 0;
2307}
2308EOF
2309        if compile_prog "$gio_cflags" "$gio_libs" ; then
2310            pass=yes
2311        else
2312            pass=no
2313        fi
2314
2315        if test "$pass" = "yes" &&
2316            $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
2317            gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
2318            gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
2319        fi
2320    fi
2321
2322    if test "$pass" = "no"; then
2323        if test "$gio" = "yes"; then
2324            feature_not_found "gio" "Install libgio >= 2.0"
2325        else
2326            gio=no
2327        fi
2328    else
2329        gio=yes
2330    fi
2331fi
2332
2333# Sanity check that the current size_t matches the
2334# size that glib thinks it should be. This catches
2335# problems on multi-arch where people try to build
2336# 32-bit QEMU while pointing at 64-bit glib headers
2337cat > $TMPC <<EOF
2338#include <glib.h>
2339#include <unistd.h>
2340
2341#define QEMU_BUILD_BUG_ON(x) \
2342  typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
2343
2344int main(void) {
2345   QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
2346   return 0;
2347}
2348EOF
2349
2350if ! compile_prog "$glib_cflags" "$glib_libs" ; then
2351    error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
2352               "You probably need to set PKG_CONFIG_LIBDIR"\
2353	       "to point to the right pkg-config files for your"\
2354	       "build target"
2355fi
2356
2357# Silence clang warnings triggered by glib < 2.57.2
2358cat > $TMPC << EOF
2359#include <glib.h>
2360typedef struct Foo {
2361    int i;
2362} Foo;
2363static void foo_free(Foo *f)
2364{
2365    g_free(f);
2366}
2367G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
2368int main(void) { return 0; }
2369EOF
2370if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
2371    if cc_has_warning_flag "-Wno-unused-function"; then
2372        glib_cflags="$glib_cflags -Wno-unused-function"
2373        CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
2374    fi
2375fi
2376
2377##########################################
2378# SHA command probe for modules
2379if test "$modules" = yes; then
2380    shacmd_probe="sha1sum sha1 shasum"
2381    for c in $shacmd_probe; do
2382        if has $c; then
2383            shacmd="$c"
2384            break
2385        fi
2386    done
2387    if test "$shacmd" = ""; then
2388        error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
2389    fi
2390fi
2391
2392##########################################
2393# fdt probe
2394
2395case "$fdt" in
2396  auto | enabled | internal)
2397    # Simpler to always update submodule, even if not needed.
2398    git_submodules="${git_submodules} dtc"
2399    ;;
2400esac
2401
2402##########################################
2403# opengl probe (for sdl2, gtk)
2404
2405if test "$opengl" != "no" ; then
2406  epoxy=no
2407  if $pkg_config epoxy; then
2408    cat > $TMPC << EOF
2409#include <epoxy/egl.h>
2410int main(void) { return 0; }
2411EOF
2412    if compile_prog "" "" ; then
2413      epoxy=yes
2414    fi
2415  fi
2416
2417  if test "$epoxy" = "yes" ; then
2418    opengl_cflags="$($pkg_config --cflags epoxy)"
2419    opengl_libs="$($pkg_config --libs epoxy)"
2420    opengl=yes
2421  else
2422    if test "$opengl" = "yes" ; then
2423      feature_not_found "opengl" "Please install epoxy with EGL"
2424    fi
2425    opengl_cflags=""
2426    opengl_libs=""
2427    opengl=no
2428  fi
2429fi
2430
2431# check for usbfs
2432have_usbfs=no
2433if test "$linux_user" = "yes"; then
2434  cat > $TMPC << EOF
2435#include <linux/usbdevice_fs.h>
2436
2437#ifndef USBDEVFS_GET_CAPABILITIES
2438#error "USBDEVFS_GET_CAPABILITIES undefined"
2439#endif
2440
2441#ifndef USBDEVFS_DISCONNECT_CLAIM
2442#error "USBDEVFS_DISCONNECT_CLAIM undefined"
2443#endif
2444
2445int main(void)
2446{
2447    return 0;
2448}
2449EOF
2450  if compile_prog "" ""; then
2451    have_usbfs=yes
2452  fi
2453fi
2454
2455##########################################
2456# check if we have VSS SDK headers for win
2457
2458guest_agent_with_vss="no"
2459if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
2460        test "$vss_win32_sdk" != "no" ; then
2461  case "$vss_win32_sdk" in
2462    "")   vss_win32_include="-isystem $source_path" ;;
2463    *\ *) # The SDK is installed in "Program Files" by default, but we cannot
2464          # handle path with spaces. So we symlink the headers into ".sdk/vss".
2465          vss_win32_include="-isystem $source_path/.sdk/vss"
2466	  symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
2467	  ;;
2468    *)    vss_win32_include="-isystem $vss_win32_sdk"
2469  esac
2470  cat > $TMPC << EOF
2471#define __MIDL_user_allocate_free_DEFINED__
2472#include <inc/win2003/vss.h>
2473int main(void) { return VSS_CTX_BACKUP; }
2474EOF
2475  if compile_prog "$vss_win32_include" "" ; then
2476    guest_agent_with_vss="yes"
2477    QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
2478    libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
2479    qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
2480  else
2481    if test "$vss_win32_sdk" != "" ; then
2482      echo "ERROR: Please download and install Microsoft VSS SDK:"
2483      echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
2484      echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
2485      echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
2486      echo "ERROR: The headers are extracted in the directory \`inc'."
2487      feature_not_found "VSS support"
2488    fi
2489  fi
2490fi
2491
2492##########################################
2493# lookup Windows platform SDK (if not specified)
2494# The SDK is needed only to build .tlb (type library) file of guest agent
2495# VSS provider from the source. It is usually unnecessary because the
2496# pre-compiled .tlb file is included.
2497
2498if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
2499        test "$guest_agent_with_vss" = "yes" ; then
2500  if test -z "$win_sdk"; then
2501    programfiles="$PROGRAMFILES"
2502    test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
2503    if test -n "$programfiles"; then
2504      win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
2505    else
2506      feature_not_found "Windows SDK"
2507    fi
2508  elif test "$win_sdk" = "no"; then
2509    win_sdk=""
2510  fi
2511fi
2512
2513##########################################
2514# check if mingw environment provides a recent ntddscsi.h
2515guest_agent_ntddscsi="no"
2516if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
2517  cat > $TMPC << EOF
2518#include <windows.h>
2519#include <ntddscsi.h>
2520int main(void) {
2521#if !defined(IOCTL_SCSI_GET_ADDRESS)
2522#error Missing required ioctl definitions
2523#endif
2524  SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
2525  return addr.Lun;
2526}
2527EOF
2528  if compile_prog "" "" ; then
2529    guest_agent_ntddscsi=yes
2530    libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
2531  fi
2532fi
2533
2534##########################################
2535# capstone
2536
2537case "$capstone" in
2538  auto | enabled | internal)
2539    # Simpler to always update submodule, even if not needed.
2540    git_submodules="${git_submodules} capstone"
2541    ;;
2542esac
2543
2544##########################################
2545# check and set a backend for coroutine
2546
2547# We prefer ucontext, but it's not always possible. The fallback
2548# is sigcontext. On Windows the only valid backend is the Windows
2549# specific one.
2550
2551ucontext_works=no
2552if test "$darwin" != "yes"; then
2553  cat > $TMPC << EOF
2554#include <ucontext.h>
2555#ifdef __stub_makecontext
2556#error Ignoring glibc stub makecontext which will always fail
2557#endif
2558int main(void) { makecontext(0, 0, 0); return 0; }
2559EOF
2560  if compile_prog "" "" ; then
2561    ucontext_works=yes
2562  fi
2563fi
2564
2565if test "$coroutine" = ""; then
2566  if test "$mingw32" = "yes"; then
2567    coroutine=win32
2568  elif test "$ucontext_works" = "yes"; then
2569    coroutine=ucontext
2570  else
2571    coroutine=sigaltstack
2572  fi
2573else
2574  case $coroutine in
2575  windows)
2576    if test "$mingw32" != "yes"; then
2577      error_exit "'windows' coroutine backend only valid for Windows"
2578    fi
2579    # Unfortunately the user visible backend name doesn't match the
2580    # coroutine-*.c filename for this case, so we have to adjust it here.
2581    coroutine=win32
2582    ;;
2583  ucontext)
2584    if test "$ucontext_works" != "yes"; then
2585      feature_not_found "ucontext"
2586    fi
2587    ;;
2588  sigaltstack)
2589    if test "$mingw32" = "yes"; then
2590      error_exit "only the 'windows' coroutine backend is valid for Windows"
2591    fi
2592    ;;
2593  *)
2594    error_exit "unknown coroutine backend $coroutine"
2595    ;;
2596  esac
2597fi
2598
2599if test "$coroutine_pool" = ""; then
2600  coroutine_pool=yes
2601fi
2602
2603if test "$debug_stack_usage" = "yes"; then
2604  if test "$coroutine_pool" = "yes"; then
2605    echo "WARN: disabling coroutine pool for stack usage debugging"
2606    coroutine_pool=no
2607  fi
2608fi
2609
2610##################################################
2611# SafeStack
2612
2613
2614if test "$safe_stack" = "yes"; then
2615cat > $TMPC << EOF
2616int main(int argc, char *argv[])
2617{
2618#if ! __has_feature(safe_stack)
2619#error SafeStack Disabled
2620#endif
2621    return 0;
2622}
2623EOF
2624  flag="-fsanitize=safe-stack"
2625  # Check that safe-stack is supported and enabled.
2626  if compile_prog "-Werror $flag" "$flag"; then
2627    # Flag needed both at compilation and at linking
2628    QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2629    QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2630  else
2631    error_exit "SafeStack not supported by your compiler"
2632  fi
2633  if test "$coroutine" != "ucontext"; then
2634    error_exit "SafeStack is only supported by the coroutine backend ucontext"
2635  fi
2636else
2637cat > $TMPC << EOF
2638int main(int argc, char *argv[])
2639{
2640#if defined(__has_feature)
2641#if __has_feature(safe_stack)
2642#error SafeStack Enabled
2643#endif
2644#endif
2645    return 0;
2646}
2647EOF
2648if test "$safe_stack" = "no"; then
2649  # Make sure that safe-stack is disabled
2650  if ! compile_prog "-Werror" ""; then
2651    # SafeStack was already enabled, try to explicitly remove the feature
2652    flag="-fno-sanitize=safe-stack"
2653    if ! compile_prog "-Werror $flag" "$flag"; then
2654      error_exit "Configure cannot disable SafeStack"
2655    fi
2656    QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2657    QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2658  fi
2659else # "$safe_stack" = ""
2660  # Set safe_stack to yes or no based on pre-existing flags
2661  if compile_prog "-Werror" ""; then
2662    safe_stack="no"
2663  else
2664    safe_stack="yes"
2665    if test "$coroutine" != "ucontext"; then
2666      error_exit "SafeStack is only supported by the coroutine backend ucontext"
2667    fi
2668  fi
2669fi
2670fi
2671
2672########################################
2673# check if __[u]int128_t is usable.
2674
2675int128=no
2676cat > $TMPC << EOF
2677__int128_t a;
2678__uint128_t b;
2679int main (void) {
2680  a = a + b;
2681  b = a * b;
2682  a = a * a;
2683  return 0;
2684}
2685EOF
2686if compile_prog "" "" ; then
2687    int128=yes
2688fi
2689
2690#########################################
2691# See if 128-bit atomic operations are supported.
2692
2693atomic128=no
2694if test "$int128" = "yes"; then
2695  cat > $TMPC << EOF
2696int main(void)
2697{
2698  unsigned __int128 x = 0, y = 0;
2699  y = __atomic_load(&x, 0);
2700  __atomic_store(&x, y, 0);
2701  __atomic_compare_exchange(&x, &y, x, 0, 0, 0);
2702  return 0;
2703}
2704EOF
2705  if compile_prog "" "" ; then
2706    atomic128=yes
2707  fi
2708fi
2709
2710cmpxchg128=no
2711if test "$int128" = yes && test "$atomic128" = no; then
2712  cat > $TMPC << EOF
2713int main(void)
2714{
2715  unsigned __int128 x = 0, y = 0;
2716  __sync_val_compare_and_swap_16(&x, y, x);
2717  return 0;
2718}
2719EOF
2720  if compile_prog "" "" ; then
2721    cmpxchg128=yes
2722  fi
2723fi
2724
2725########################################
2726# check if ccache is interfering with
2727# semantic analysis of macros
2728
2729unset CCACHE_CPP2
2730ccache_cpp2=no
2731cat > $TMPC << EOF
2732static const int Z = 1;
2733#define fn() ({ Z; })
2734#define TAUT(X) ((X) == Z)
2735#define PAREN(X, Y) (X == Y)
2736#define ID(X) (X)
2737int main(int argc, char *argv[])
2738{
2739    int x = 0, y = 0;
2740    x = ID(x);
2741    x = fn();
2742    fn();
2743    if (PAREN(x, y)) return 0;
2744    if (TAUT(Z)) return 0;
2745    return 0;
2746}
2747EOF
2748
2749if ! compile_object "-Werror"; then
2750    ccache_cpp2=yes
2751fi
2752
2753#################################################
2754# clang does not support glibc + FORTIFY_SOURCE.
2755
2756if test "$fortify_source" != "no"; then
2757  if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
2758    fortify_source="no";
2759  elif test -n "$cxx" && has $cxx &&
2760       echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
2761    fortify_source="no";
2762  else
2763    fortify_source="yes"
2764  fi
2765fi
2766
2767##########################################
2768# checks for sanitizers
2769
2770have_asan=no
2771have_ubsan=no
2772have_asan_iface_h=no
2773have_asan_iface_fiber=no
2774
2775if test "$sanitizers" = "yes" ; then
2776  write_c_skeleton
2777  if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
2778      have_asan=yes
2779  fi
2780
2781  # we could use a simple skeleton for flags checks, but this also
2782  # detect the static linking issue of ubsan, see also:
2783  # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
2784  cat > $TMPC << EOF
2785#include <stdlib.h>
2786int main(void) {
2787    void *tmp = malloc(10);
2788    if (tmp != NULL) {
2789        return *(int *)(tmp + 2);
2790    }
2791    return 1;
2792}
2793EOF
2794  if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
2795      have_ubsan=yes
2796  fi
2797
2798  if check_include "sanitizer/asan_interface.h" ; then
2799      have_asan_iface_h=yes
2800  fi
2801
2802  cat > $TMPC << EOF
2803#include <sanitizer/asan_interface.h>
2804int main(void) {
2805  __sanitizer_start_switch_fiber(0, 0, 0);
2806  return 0;
2807}
2808EOF
2809  if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
2810      have_asan_iface_fiber=yes
2811  fi
2812fi
2813
2814# Thread sanitizer is, for now, much noisier than the other sanitizers;
2815# keep it separate until that is not the case.
2816if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
2817  error_exit "TSAN is not supported with other sanitiziers."
2818fi
2819have_tsan=no
2820have_tsan_iface_fiber=no
2821if test "$tsan" = "yes" ; then
2822  write_c_skeleton
2823  if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
2824      have_tsan=yes
2825  fi
2826  cat > $TMPC << EOF
2827#include <sanitizer/tsan_interface.h>
2828int main(void) {
2829  __tsan_create_fiber(0);
2830  return 0;
2831}
2832EOF
2833  if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
2834      have_tsan_iface_fiber=yes
2835  fi
2836fi
2837
2838##########################################
2839# check for slirp
2840
2841case "$slirp" in
2842  auto | enabled | internal)
2843    # Simpler to always update submodule, even if not needed.
2844    git_submodules="${git_submodules} slirp"
2845    ;;
2846esac
2847
2848# Check for slirp smbd dupport
2849: ${smbd=${SMBD-/usr/sbin/smbd}}
2850if test "$slirp_smbd" != "no" ; then
2851  if test "$mingw32" = "yes" ; then
2852    if test "$slirp_smbd" = "yes" ; then
2853      error_exit "Host smbd not supported on this platform."
2854    fi
2855    slirp_smbd=no
2856  else
2857    slirp_smbd=yes
2858  fi
2859fi
2860
2861##########################################
2862# check for usable __NR_keyctl syscall
2863
2864if test "$linux" = "yes" ; then
2865
2866    have_keyring=no
2867    cat > $TMPC << EOF
2868#include <errno.h>
2869#include <asm/unistd.h>
2870#include <linux/keyctl.h>
2871#include <unistd.h>
2872int main(void) {
2873    return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
2874}
2875EOF
2876    if compile_prog "" "" ; then
2877        have_keyring=yes
2878    fi
2879fi
2880if test "$secret_keyring" != "no"
2881then
2882    if test "$have_keyring" = "yes"
2883    then
2884	secret_keyring=yes
2885    else
2886	if test "$secret_keyring" = "yes"
2887	then
2888	    error_exit "syscall __NR_keyctl requested, \
2889but not implemented on your system"
2890	else
2891	    secret_keyring=no
2892	fi
2893    fi
2894fi
2895
2896##########################################
2897# End of CC checks
2898# After here, no more $cc or $ld runs
2899
2900write_c_skeleton
2901
2902if test "$gcov" = "yes" ; then
2903  :
2904elif test "$fortify_source" = "yes" ; then
2905  QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2906  debug=no
2907fi
2908
2909case "$ARCH" in
2910alpha)
2911  # Ensure there's only a single GP
2912  QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
2913;;
2914esac
2915
2916if test "$gprof" = "yes" ; then
2917  QEMU_CFLAGS="-p $QEMU_CFLAGS"
2918  QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
2919fi
2920
2921if test "$have_asan" = "yes"; then
2922  QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2923  QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2924  if test "$have_asan_iface_h" = "no" ; then
2925      echo "ASAN build enabled, but ASAN header missing." \
2926           "Without code annotation, the report may be inferior."
2927  elif test "$have_asan_iface_fiber" = "no" ; then
2928      echo "ASAN build enabled, but ASAN header is too old." \
2929           "Without code annotation, the report may be inferior."
2930  fi
2931fi
2932if test "$have_tsan" = "yes" ; then
2933  if test "$have_tsan_iface_fiber" = "yes" ; then
2934    QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2935    QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2936  else
2937    error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2938  fi
2939elif test "$tsan" = "yes" ; then
2940  error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2941fi
2942if test "$have_ubsan" = "yes"; then
2943  QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2944  QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2945fi
2946
2947##########################################
2948
2949# Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
2950if test "$solaris" = "no" && test "$tsan" = "no"; then
2951    if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
2952        QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
2953    fi
2954fi
2955
2956# Use ASLR, no-SEH and DEP if available
2957if test "$mingw32" = "yes" ; then
2958    flags="--no-seh --nxcompat"
2959
2960    # Disable ASLR for debug builds to allow debugging with gdb
2961    if test "$debug" = "no" ; then
2962        flags="--dynamicbase $flags"
2963    fi
2964
2965    for flag in $flags; do
2966        if ld_has $flag ; then
2967            QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
2968        fi
2969    done
2970fi
2971
2972# Probe for guest agent support/options
2973
2974if [ "$guest_agent" != "no" ]; then
2975  if [ "$softmmu" = no -a "$want_tools" = no ] ; then
2976      guest_agent=no
2977  elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
2978      guest_agent=yes
2979  elif [ "$guest_agent" != yes ]; then
2980      guest_agent=no
2981  else
2982      error_exit "Guest agent is not supported on this platform"
2983  fi
2984fi
2985
2986# Guest agent Windows MSI package
2987
2988if test "$QEMU_GA_MANUFACTURER" = ""; then
2989  QEMU_GA_MANUFACTURER=QEMU
2990fi
2991if test "$QEMU_GA_DISTRO" = ""; then
2992  QEMU_GA_DISTRO=Linux
2993fi
2994if test "$QEMU_GA_VERSION" = ""; then
2995    QEMU_GA_VERSION=$(cat $source_path/VERSION)
2996fi
2997
2998QEMU_GA_MSI_MINGW_DLL_PATH="$($pkg_config --variable=prefix glib-2.0)/bin"
2999
3000# Mac OS X ships with a broken assembler
3001roms=
3002if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
3003        test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
3004        test "$targetos" != "haiku" && test "$softmmu" = yes ; then
3005    # Different host OS linkers have different ideas about the name of the ELF
3006    # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
3007    # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
3008    for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
3009        if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
3010            ld_i386_emulation="$emu"
3011            roms="optionrom"
3012            break
3013        fi
3014    done
3015fi
3016
3017# Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
3018# or -march=z10 (which is the lowest architecture level that Clang supports)
3019if test "$cpu" = "s390x" ; then
3020  write_c_skeleton
3021  compile_prog "-march=z900" ""
3022  has_z900=$?
3023  if [ $has_z900 = 0 ] || compile_object "-march=z10 -msoft-float -Werror"; then
3024    if [ $has_z900 != 0 ]; then
3025      echo "WARNING: Your compiler does not support the z900!"
3026      echo "         The s390-ccw bios will only work with guest CPUs >= z10."
3027    fi
3028    roms="$roms s390-ccw"
3029    # SLOF is required for building the s390-ccw firmware on s390x,
3030    # since it is using the libnet code from SLOF for network booting.
3031    git_submodules="${git_submodules} roms/SLOF"
3032  fi
3033fi
3034
3035# Check that the C++ compiler exists and works with the C compiler.
3036# All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
3037if has $cxx; then
3038    cat > $TMPC <<EOF
3039int c_function(void);
3040int main(void) { return c_function(); }
3041EOF
3042
3043    compile_object
3044
3045    cat > $TMPCXX <<EOF
3046extern "C" {
3047   int c_function(void);
3048}
3049int c_function(void) { return 42; }
3050EOF
3051
3052    update_cxxflags
3053
3054    if do_cxx $CXXFLAGS $EXTRA_CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
3055        # C++ compiler $cxx works ok with C compiler $cc
3056        :
3057    else
3058        echo "C++ compiler $cxx does not work with C compiler $cc"
3059        echo "Disabling C++ specific optional code"
3060        cxx=
3061    fi
3062else
3063    echo "No C++ compiler available; disabling C++ specific optional code"
3064    cxx=
3065fi
3066
3067if !(GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
3068    exit 1
3069fi
3070
3071config_host_mak="config-host.mak"
3072
3073echo "# Automatically generated by configure - do not modify" > $config_host_mak
3074echo >> $config_host_mak
3075
3076echo all: >> $config_host_mak
3077echo "GIT=$git" >> $config_host_mak
3078echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
3079echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
3080
3081if test "$debug_tcg" = "yes" ; then
3082  echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
3083fi
3084if test "$mingw32" = "yes" ; then
3085  echo "CONFIG_WIN32=y" >> $config_host_mak
3086  if test "$guest_agent_with_vss" = "yes" ; then
3087    echo "CONFIG_QGA_VSS=y" >> $config_host_mak
3088    echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
3089    echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
3090  fi
3091  if test "$guest_agent_ntddscsi" = "yes" ; then
3092    echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
3093  fi
3094  echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
3095  echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
3096  echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
3097  echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
3098else
3099  echo "CONFIG_POSIX=y" >> $config_host_mak
3100fi
3101
3102if test "$linux" = "yes" ; then
3103  echo "CONFIG_LINUX=y" >> $config_host_mak
3104fi
3105
3106if test "$darwin" = "yes" ; then
3107  echo "CONFIG_DARWIN=y" >> $config_host_mak
3108fi
3109
3110if test "$solaris" = "yes" ; then
3111  echo "CONFIG_SOLARIS=y" >> $config_host_mak
3112fi
3113if test "$static" = "yes" ; then
3114  echo "CONFIG_STATIC=y" >> $config_host_mak
3115fi
3116if test "$profiler" = "yes" ; then
3117  echo "CONFIG_PROFILER=y" >> $config_host_mak
3118fi
3119if test "$want_tools" = "yes" ; then
3120  echo "CONFIG_TOOLS=y" >> $config_host_mak
3121fi
3122if test "$guest_agent" = "yes" ; then
3123  echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
3124fi
3125if test "$slirp_smbd" = "yes" ; then
3126  echo "CONFIG_SLIRP_SMBD=y" >> $config_host_mak
3127  echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
3128fi
3129if test "$gprof" = "yes" ; then
3130  echo "CONFIG_GPROF=y" >> $config_host_mak
3131fi
3132echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
3133echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
3134if test "$block_drv_whitelist_tools" = "yes" ; then
3135  echo "CONFIG_BDRV_WHITELIST_TOOLS=y" >> $config_host_mak
3136fi
3137qemu_version=$(head $source_path/VERSION)
3138echo "PKGVERSION=$pkgversion" >>$config_host_mak
3139echo "SRC_PATH=$source_path" >> $config_host_mak
3140echo "TARGET_DIRS=$target_list" >> $config_host_mak
3141if test "$modules" = "yes"; then
3142  # $shacmd can generate a hash started with digit, which the compiler doesn't
3143  # like as an symbol. So prefix it with an underscore
3144  echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
3145  echo "CONFIG_MODULES=y" >> $config_host_mak
3146fi
3147if test "$module_upgrades" = "yes"; then
3148  echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
3149fi
3150if test "$have_usbfs" = "yes" ; then
3151  echo "CONFIG_USBFS=y" >> $config_host_mak
3152fi
3153if test "$gio" = "yes" ; then
3154    echo "CONFIG_GIO=y" >> $config_host_mak
3155    echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
3156    echo "GIO_LIBS=$gio_libs" >> $config_host_mak
3157fi
3158if test "$gdbus_codegen" != "" ; then
3159    echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
3160fi
3161echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
3162
3163if test "$xen" = "enabled" ; then
3164  echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
3165  echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
3166  echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
3167  echo "XEN_LIBS=$xen_libs" >> $config_host_mak
3168fi
3169if test "$vhost_scsi" = "yes" ; then
3170  echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
3171fi
3172if test "$vhost_net" = "yes" ; then
3173  echo "CONFIG_VHOST_NET=y" >> $config_host_mak
3174fi
3175if test "$vhost_net_user" = "yes" ; then
3176  echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
3177fi
3178if test "$vhost_net_vdpa" = "yes" ; then
3179  echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
3180fi
3181if test "$vhost_crypto" = "yes" ; then
3182  echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
3183fi
3184if test "$vhost_vsock" = "yes" ; then
3185  echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
3186  if test "$vhost_user" = "yes" ; then
3187    echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
3188  fi
3189fi
3190if test "$vhost_kernel" = "yes" ; then
3191  echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
3192fi
3193if test "$vhost_user" = "yes" ; then
3194  echo "CONFIG_VHOST_USER=y" >> $config_host_mak
3195fi
3196if test "$vhost_vdpa" = "yes" ; then
3197  echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
3198fi
3199if test "$vhost_user_fs" = "yes" ; then
3200  echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
3201fi
3202if test "$tcg" = "enabled" -a "$tcg_interpreter" = "true" ; then
3203  echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
3204fi
3205
3206if test "$opengl" = "yes" ; then
3207  echo "CONFIG_OPENGL=y" >> $config_host_mak
3208  echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
3209  echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
3210fi
3211
3212# XXX: suppress that
3213if [ "$bsd" = "yes" ] ; then
3214  echo "CONFIG_BSD=y" >> $config_host_mak
3215fi
3216
3217if test "$qom_cast_debug" = "yes" ; then
3218  echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
3219fi
3220
3221echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
3222if test "$coroutine_pool" = "yes" ; then
3223  echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
3224else
3225  echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
3226fi
3227
3228if test "$debug_stack_usage" = "yes" ; then
3229  echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
3230fi
3231
3232if test "$have_asan_iface_fiber" = "yes" ; then
3233    echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
3234fi
3235
3236if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
3237    echo "CONFIG_TSAN=y" >> $config_host_mak
3238fi
3239
3240if test "$int128" = "yes" ; then
3241  echo "CONFIG_INT128=y" >> $config_host_mak
3242fi
3243
3244if test "$atomic128" = "yes" ; then
3245  echo "CONFIG_ATOMIC128=y" >> $config_host_mak
3246fi
3247
3248if test "$cmpxchg128" = "yes" ; then
3249  echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
3250fi
3251
3252if test "$live_block_migration" = "yes" ; then
3253  echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
3254fi
3255
3256if test "$rdma" = "yes" ; then
3257  echo "CONFIG_RDMA=y" >> $config_host_mak
3258  echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
3259fi
3260
3261if test "$pvrdma" = "yes" ; then
3262  echo "CONFIG_PVRDMA=y" >> $config_host_mak
3263fi
3264
3265if test "$replication" = "yes" ; then
3266  echo "CONFIG_REPLICATION=y" >> $config_host_mak
3267fi
3268
3269if test "$debug_mutex" = "yes" ; then
3270  echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
3271fi
3272
3273if test "$bochs" = "yes" ; then
3274  echo "CONFIG_BOCHS=y" >> $config_host_mak
3275fi
3276if test "$cloop" = "yes" ; then
3277  echo "CONFIG_CLOOP=y" >> $config_host_mak
3278fi
3279if test "$dmg" = "yes" ; then
3280  echo "CONFIG_DMG=y" >> $config_host_mak
3281fi
3282if test "$qcow1" = "yes" ; then
3283  echo "CONFIG_QCOW1=y" >> $config_host_mak
3284fi
3285if test "$vdi" = "yes" ; then
3286  echo "CONFIG_VDI=y" >> $config_host_mak
3287fi
3288if test "$vvfat" = "yes" ; then
3289  echo "CONFIG_VVFAT=y" >> $config_host_mak
3290fi
3291if test "$qed" = "yes" ; then
3292  echo "CONFIG_QED=y" >> $config_host_mak
3293fi
3294if test "$parallels" = "yes" ; then
3295  echo "CONFIG_PARALLELS=y" >> $config_host_mak
3296fi
3297
3298if test "$plugins" = "yes" ; then
3299    echo "CONFIG_PLUGIN=y" >> $config_host_mak
3300fi
3301
3302if test -n "$gdb_bin"; then
3303    gdb_version=$($gdb_bin --version | head -n 1)
3304    if version_ge ${gdb_version##* } 9.1; then
3305        echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
3306    fi
3307fi
3308
3309if test "$secret_keyring" = "yes" ; then
3310  echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
3311fi
3312
3313echo "ROMS=$roms" >> $config_host_mak
3314echo "MAKE=$make" >> $config_host_mak
3315echo "PYTHON=$python" >> $config_host_mak
3316echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
3317echo "MESON=$meson" >> $config_host_mak
3318echo "NINJA=$ninja" >> $config_host_mak
3319echo "CC=$cc" >> $config_host_mak
3320echo "HOST_CC=$host_cc" >> $config_host_mak
3321if $iasl -h > /dev/null 2>&1; then
3322  echo "CONFIG_IASL=$iasl" >> $config_host_mak
3323fi
3324echo "AR=$ar" >> $config_host_mak
3325echo "AS=$as" >> $config_host_mak
3326echo "CCAS=$ccas" >> $config_host_mak
3327echo "CPP=$cpp" >> $config_host_mak
3328echo "OBJCOPY=$objcopy" >> $config_host_mak
3329echo "LD=$ld" >> $config_host_mak
3330echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
3331echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
3332echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
3333echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
3334echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
3335echo "GLIB_VERSION=$(pkg-config --modversion glib-2.0)" >> $config_host_mak
3336echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
3337echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
3338echo "STRIP=$strip" >> $config_host_mak
3339echo "EXESUF=$EXESUF" >> $config_host_mak
3340echo "LIBS_QGA=$libs_qga" >> $config_host_mak
3341
3342if test "$rng_none" = "yes"; then
3343  echo "CONFIG_RNG_NONE=y" >> $config_host_mak
3344fi
3345
3346# use included Linux headers
3347if test "$linux" = "yes" ; then
3348  mkdir -p linux-headers
3349  case "$cpu" in
3350  i386|x86_64)
3351    linux_arch=x86
3352    ;;
3353  ppc|ppc64)
3354    linux_arch=powerpc
3355    ;;
3356  s390x)
3357    linux_arch=s390
3358    ;;
3359  aarch64)
3360    linux_arch=arm64
3361    ;;
3362  loongarch*)
3363    linux_arch=loongarch
3364    ;;
3365  mips64)
3366    linux_arch=mips
3367    ;;
3368  *)
3369    # For most CPUs the kernel architecture name and QEMU CPU name match.
3370    linux_arch="$cpu"
3371    ;;
3372  esac
3373    # For non-KVM architectures we will not have asm headers
3374    if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
3375      symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
3376    fi
3377fi
3378
3379for target in $target_list; do
3380    target_dir="$target"
3381    target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
3382    mkdir -p $target_dir
3383    case $target in
3384        *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
3385        *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
3386    esac
3387done
3388
3389echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
3390if test "$default_targets" = "yes"; then
3391  echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
3392fi
3393
3394if test "$ccache_cpp2" = "yes"; then
3395  echo "export CCACHE_CPP2=y" >> $config_host_mak
3396fi
3397
3398if test "$safe_stack" = "yes"; then
3399  echo "CONFIG_SAFESTACK=y" >> $config_host_mak
3400fi
3401
3402# If we're using a separate build tree, set it up now.
3403# LINKS are things to symlink back into the source tree
3404# (these can be both files and directories).
3405# Caution: do not add files or directories here using wildcards. This
3406# will result in problems later if a new file matching the wildcard is
3407# added to the source tree -- nothing will cause configure to be rerun
3408# so the build tree will be missing the link back to the new file, and
3409# tests might fail. Prefer to keep the relevant files in their own
3410# directory and symlink the directory instead.
3411LINKS="Makefile"
3412LINKS="$LINKS tests/tcg/Makefile.target"
3413LINKS="$LINKS pc-bios/optionrom/Makefile"
3414LINKS="$LINKS pc-bios/s390-ccw/Makefile"
3415LINKS="$LINKS roms/seabios/Makefile"
3416LINKS="$LINKS pc-bios/qemu-icon.bmp"
3417LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
3418LINKS="$LINKS tests/avocado tests/data"
3419LINKS="$LINKS tests/qemu-iotests/check"
3420LINKS="$LINKS python"
3421LINKS="$LINKS contrib/plugins/Makefile "
3422for bios_file in \
3423    $source_path/pc-bios/*.bin \
3424    $source_path/pc-bios/*.elf \
3425    $source_path/pc-bios/*.lid \
3426    $source_path/pc-bios/*.rom \
3427    $source_path/pc-bios/*.dtb \
3428    $source_path/pc-bios/*.img \
3429    $source_path/pc-bios/openbios-* \
3430    $source_path/pc-bios/u-boot.* \
3431    $source_path/pc-bios/palcode-* \
3432    $source_path/pc-bios/qemu_vga.ndrv
3433
3434do
3435    LINKS="$LINKS pc-bios/$(basename $bios_file)"
3436done
3437for f in $LINKS ; do
3438    if [ -e "$source_path/$f" ]; then
3439        mkdir -p `dirname ./$f`
3440        symlink "$source_path/$f" "$f"
3441    fi
3442done
3443
3444(for i in $cross_cc_vars; do
3445  export $i
3446done
3447export target_list source_path use_containers cpu
3448$source_path/tests/tcg/configure.sh)
3449
3450# temporary config to build submodules
3451if test -f $source_path/roms/seabios/Makefile; then
3452  for rom in seabios; do
3453    config_mak=roms/$rom/config.mak
3454    echo "# Automatically generated by configure - do not modify" > $config_mak
3455    echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
3456    echo "AS=$as" >> $config_mak
3457    echo "CCAS=$ccas" >> $config_mak
3458    echo "CC=$cc" >> $config_mak
3459    echo "BCC=bcc" >> $config_mak
3460    echo "CPP=$cpp" >> $config_mak
3461    echo "OBJCOPY=objcopy" >> $config_mak
3462    echo "IASL=$iasl" >> $config_mak
3463    echo "LD=$ld" >> $config_mak
3464    echo "RANLIB=$ranlib" >> $config_mak
3465  done
3466fi
3467
3468config_mak=pc-bios/optionrom/config.mak
3469echo "# Automatically generated by configure - do not modify" > $config_mak
3470echo "TOPSRC_DIR=$source_path" >> $config_mak
3471
3472if test "$skip_meson" = no; then
3473  cross="config-meson.cross.new"
3474  meson_quote() {
3475    test $# = 0 && return
3476    echo "'$(echo $* | sed "s/ /','/g")'"
3477  }
3478
3479  echo "# Automatically generated by configure - do not modify" > $cross
3480  echo "[properties]" >> $cross
3481
3482  # unroll any custom device configs
3483  for a in $device_archs; do
3484      eval "c=\$devices_${a}"
3485      echo "${a}-softmmu = '$c'" >> $cross
3486  done
3487
3488  test -z "$cxx" && echo "link_language = 'c'" >> $cross
3489  echo "[built-in options]" >> $cross
3490  echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
3491  echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
3492  echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
3493  echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
3494  echo "[binaries]" >> $cross
3495  echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
3496  test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
3497  test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
3498  echo "ar = [$(meson_quote $ar)]" >> $cross
3499  echo "nm = [$(meson_quote $nm)]" >> $cross
3500  echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
3501  echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
3502  if has $sdl2_config; then
3503    echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
3504  fi
3505  echo "strip = [$(meson_quote $strip)]" >> $cross
3506  echo "windres = [$(meson_quote $windres)]" >> $cross
3507  if test "$cross_compile" = "yes"; then
3508    cross_arg="--cross-file config-meson.cross"
3509    echo "[host_machine]" >> $cross
3510    echo "system = '$targetos'" >> $cross
3511    case "$cpu" in
3512        i386)
3513            echo "cpu_family = 'x86'" >> $cross
3514            ;;
3515        *)
3516            echo "cpu_family = '$cpu'" >> $cross
3517            ;;
3518    esac
3519    echo "cpu = '$cpu'" >> $cross
3520    if test "$bigendian" = "yes" ; then
3521        echo "endian = 'big'" >> $cross
3522    else
3523        echo "endian = 'little'" >> $cross
3524    fi
3525  else
3526    cross_arg="--native-file config-meson.cross"
3527  fi
3528  mv $cross config-meson.cross
3529
3530  rm -rf meson-private meson-info meson-logs
3531  run_meson() {
3532    NINJA=$ninja $meson setup \
3533        --prefix "$prefix" \
3534        --libdir "$libdir" \
3535        --libexecdir "$libexecdir" \
3536        --bindir "$bindir" \
3537        --includedir "$includedir" \
3538        --datadir "$datadir" \
3539        --mandir "$mandir" \
3540        --sysconfdir "$sysconfdir" \
3541        --localedir "$localedir" \
3542        --localstatedir "$local_statedir" \
3543        -Daudio_drv_list=$audio_drv_list \
3544        -Ddefault_devices=$default_devices \
3545        -Ddocdir="$docdir" \
3546        -Dqemu_firmwarepath="$firmwarepath" \
3547        -Dqemu_suffix="$qemu_suffix" \
3548        -Dsphinx_build="$sphinx_build" \
3549        -Dtrace_file="$trace_file" \
3550        -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
3551        -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
3552        -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
3553        -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
3554        -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
3555        -Db_lto=$lto -Dcfi=$cfi -Dtcg=$tcg -Dxen=$xen \
3556        -Dcapstone=$capstone -Dfdt=$fdt -Dslirp=$slirp \
3557        $(test -n "${LIB_FUZZING_ENGINE+xxx}" && echo "-Dfuzzing_engine=$LIB_FUZZING_ENGINE") \
3558        $(if test "$default_feature" = no; then echo "-Dauto_features=disabled"; fi) \
3559        "$@" $cross_arg "$PWD" "$source_path"
3560  }
3561  eval run_meson $meson_options
3562  if test "$?" -ne 0 ; then
3563      error_exit "meson setup failed"
3564  fi
3565else
3566  if test -f meson-private/cmd_line.txt; then
3567    # Adjust old command line options whose type was changed
3568    # Avoids having to use "setup --wipe" when Meson is upgraded
3569    perl -i -ne '
3570      s/^gettext = true$/gettext = auto/;
3571      s/^gettext = false$/gettext = disabled/;
3572      /^b_staticpic/ && next;
3573      print;' meson-private/cmd_line.txt
3574  fi
3575fi
3576
3577# Save the configure command line for later reuse.
3578cat <<EOD >config.status
3579#!/bin/sh
3580# Generated by configure.
3581# Run this file to recreate the current configuration.
3582# Compiler output produced by configure, useful for debugging
3583# configure, is in config.log if it exists.
3584EOD
3585
3586preserve_env() {
3587    envname=$1
3588
3589    eval envval=\$$envname
3590
3591    if test -n "$envval"
3592    then
3593	echo "$envname='$envval'" >> config.status
3594	echo "export $envname" >> config.status
3595    else
3596	echo "unset $envname" >> config.status
3597    fi
3598}
3599
3600# Preserve various env variables that influence what
3601# features/build target configure will detect
3602preserve_env AR
3603preserve_env AS
3604preserve_env CC
3605preserve_env CPP
3606preserve_env CFLAGS
3607preserve_env CXX
3608preserve_env CXXFLAGS
3609preserve_env INSTALL
3610preserve_env LD
3611preserve_env LDFLAGS
3612preserve_env LD_LIBRARY_PATH
3613preserve_env LIBTOOL
3614preserve_env MAKE
3615preserve_env NM
3616preserve_env OBJCOPY
3617preserve_env PATH
3618preserve_env PKG_CONFIG
3619preserve_env PKG_CONFIG_LIBDIR
3620preserve_env PKG_CONFIG_PATH
3621preserve_env PYTHON
3622preserve_env SDL2_CONFIG
3623preserve_env SMBD
3624preserve_env STRIP
3625preserve_env WINDRES
3626
3627printf "exec" >>config.status
3628for i in "$0" "$@"; do
3629  test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
3630done
3631echo ' "$@"' >>config.status
3632chmod +x config.status
3633
3634rm -r "$TMPDIR1"
3635