xref: /qemu/configure (revision dcaaf2bf)
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.  Unlike autoconf, we assume that unset exists.
8unset CLICOLOR_FORCE GREP_OPTIONS BASH_ENV ENV MAIL MAILPATH CDPATH
9
10# Don't allow CCACHE, if present, to use cached results of compile tests!
11export CCACHE_RECACHE=yes
12
13# make source path absolute
14source_path=$(cd "$(dirname -- "$0")"; pwd)
15
16if test "$PWD" = "$source_path"
17then
18    echo "Using './build' as the directory for build output"
19
20    MARKER=build/auto-created-by-configure
21
22    if test -e build
23    then
24        if test -f $MARKER
25        then
26           rm -rf build
27        else
28            echo "ERROR: ./build dir already exists and was not previously created by configure"
29            exit 1
30        fi
31    fi
32
33    if ! mkdir build || ! touch $MARKER
34    then
35        echo "ERROR: Could not create ./build directory. Check the permissions on"
36        echo "your source directory, or try doing an out-of-tree build."
37        exit 1
38    fi
39
40    cat > GNUmakefile <<'EOF'
41# This file is auto-generated by configure to support in-source tree
42# 'make' command invocation
43
44ifeq ($(MAKECMDGOALS),)
45recurse: all
46endif
47
48.NOTPARALLEL: %
49%: force
50	@echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
51	@$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
52	@if test "$(MAKECMDGOALS)" = "distclean" && \
53	    test -e build/auto-created-by-configure ; \
54	then \
55	    rm -rf build GNUmakefile ; \
56	fi
57force: ;
58.PHONY: force
59GNUmakefile: ;
60
61EOF
62    cd build
63    exec "$source_path/configure" "$@"
64fi
65
66# Temporary directory used for files created while
67# configure runs. Since it is in the build directory
68# we can safely blow away any previous version of it
69# (and we need not jump through hoops to try to delete
70# it when configure exits.)
71TMPDIR1="config-temp"
72rm -rf "${TMPDIR1}"
73if ! mkdir -p "${TMPDIR1}"; then
74    echo "ERROR: failed to create temporary directory"
75    exit 1
76fi
77
78TMPB="qemu-conf"
79TMPC="${TMPDIR1}/${TMPB}.c"
80TMPO="${TMPDIR1}/${TMPB}.o"
81TMPE="${TMPDIR1}/${TMPB}.exe"
82
83rm -f config.log
84
85# Print a helpful header at the top of config.log
86echo "# QEMU configure log $(date)" >> config.log
87printf "# Configured with:" >> config.log
88# repeat the invocation to log and stdout for CI
89invoke=$(printf " '%s'" "$0" "$@")
90test -n "$GITLAB_CI" && echo "configuring with: $invoke"
91{ echo "$invoke"; echo; echo "#"; } >> config.log
92
93quote_sh() {
94    printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
95}
96
97print_error() {
98    (echo
99    echo "ERROR: $1"
100    while test -n "$2"; do
101        echo "       $2"
102        shift
103    done
104    echo) >&2
105}
106
107error_exit() {
108    print_error "$@"
109    exit 1
110}
111
112do_compiler() {
113  # Run the compiler, capturing its output to the log. First argument
114  # is compiler binary to execute.
115  compiler="$1"
116  shift
117  if test -n "$BASH_VERSION"; then eval '
118      echo >>config.log "
119funcs: ${FUNCNAME[*]}
120lines: ${BASH_LINENO[*]}"
121  '; fi
122  echo $compiler "$@" >> config.log
123  $compiler "$@" >> config.log 2>&1 || return $?
124}
125
126do_cc() {
127    do_compiler "$cc" $CPU_CFLAGS "$@"
128}
129
130compile_object() {
131  local_cflags="$1"
132  do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -c -o $TMPO $TMPC
133}
134
135compile_prog() {
136  local_cflags="$1"
137  local_ldflags="$2"
138  do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -o $TMPE $TMPC \
139      $LDFLAGS $EXTRA_LDFLAGS $local_ldflags
140}
141
142# symbolically link $1 to $2.  Portable version of "ln -sf".
143symlink() {
144  rm -rf "$2"
145  mkdir -p "$(dirname "$2")"
146  ln -s "$1" "$2"
147}
148
149# check whether a command is available to this shell (may be either an
150# executable or a builtin)
151has() {
152    type "$1" >/dev/null 2>&1
153}
154
155version_ge () {
156    local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
157    local_ver2=$(echo "$2" | tr . ' ')
158    while true; do
159        set x $local_ver1
160        local_first=${2-0}
161        # 'shift 2' if $2 is set, or 'shift' if $2 is not set
162        shift ${2:+2}
163        local_ver1=$*
164        set x $local_ver2
165        # the second argument finished, the first must be greater or equal
166        test $# = 1 && return 0
167        test $local_first -lt $2 && return 1
168        test $local_first -gt $2 && return 0
169        shift ${2:+2}
170        local_ver2=$*
171    done
172}
173
174if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
175then
176  error_exit "main directory cannot contain spaces nor colons"
177fi
178
179# parse CC options first; some compiler tests are used to establish
180# some defaults, based on the host environment
181
182# default parameters
183cpu=""
184cross_compile="no"
185cross_prefix=""
186host_cc="cc"
187EXTRA_CFLAGS=""
188EXTRA_CXXFLAGS=""
189EXTRA_OBJCFLAGS=""
190EXTRA_LDFLAGS=""
191
192# Default value for a variable defining feature "foo".
193#  * foo="no"  feature will only be used if --enable-foo arg is given
194#  * foo=""    feature will be searched for, and if found, will be used
195#              unless --disable-foo is given
196#  * foo="yes" this value will only be set by --enable-foo flag.
197#              feature will searched for,
198#              if not found, configure exits with error
199#
200# Always add --enable-foo and --disable-foo command line args.
201# Distributions want to ensure that several features are compiled in, and it
202# is impossible without a --enable-foo that exits if a feature is not found.
203default_feature=""
204
205for opt do
206  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
207  case "$opt" in
208  --cross-prefix=*) cross_prefix="$optarg"
209                    cross_compile="yes"
210  ;;
211  --cc=*) CC="$optarg"
212  ;;
213  --cxx=*) CXX="$optarg"
214  ;;
215  --objcc=*) objcc="$optarg"
216  ;;
217  --cpu=*) cpu="$optarg"
218  ;;
219  --extra-cflags=*)
220    EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
221    EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
222    EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
223    ;;
224  --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
225  ;;
226  --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
227  ;;
228  --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
229  ;;
230  --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
231  ;;
232  --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
233                      eval "cross_cc_cflags_${cc_arch}=\$optarg"
234  ;;
235  --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
236                eval "cross_cc_${cc_arch}=\$optarg"
237  ;;
238  --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
239  ;;
240  --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
241                    eval "cross_prefix_${cc_arch}=\$optarg"
242  ;;
243  --without-default-features) default_feature="no"
244  ;;
245  esac
246done
247
248
249git_submodules_action="update"
250git="git"
251debug_tcg="no"
252docs="auto"
253EXESUF=""
254prefix="/usr/local"
255qemu_suffix="qemu"
256softmmu="yes"
257linux_user=""
258bsd_user=""
259plugins="$default_feature"
260ninja=""
261python=
262download="enabled"
263bindir="bin"
264skip_meson=no
265use_containers="yes"
266gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
267gdb_arches=""
268werror=""
269
270# Don't accept a target_list environment variable.
271unset target_list
272unset target_list_exclude
273
274# The following Meson options are handled manually (still they
275# are included in the automatically generated help message)
276# because they automatically enable/disable other options
277tcg="auto"
278cfi="false"
279
280# Meson has PIE as a boolean rather than enabled/disabled/auto,
281# and we also need to check for -static-pie before Meson runs
282# which requires knowing whether --static is enabled.
283pie=""
284static="no"
285
286# Preferred compiler:
287#  ${CC} (if set)
288#  ${cross_prefix}gcc (if cross-prefix specified)
289#  system compiler
290if test -z "${CC}${cross_prefix}"; then
291  cc="$host_cc"
292else
293  cc="${CC-${cross_prefix}gcc}"
294fi
295
296if test -z "${CXX}${cross_prefix}"; then
297  cxx="c++"
298else
299  cxx="${CXX-${cross_prefix}g++}"
300fi
301
302# Preferred ObjC compiler:
303# $objcc (if set, i.e. via --objcc option)
304# ${cross_prefix}clang (if cross-prefix specified)
305# clang (if available)
306# $cc
307if test -z "${objcc}${cross_prefix}"; then
308  if has clang; then
309    objcc=clang
310  else
311    objcc="$cc"
312  fi
313else
314  objcc="${objcc-${cross_prefix}clang}"
315fi
316
317ar="${AR-${cross_prefix}ar}"
318as="${AS-${cross_prefix}as}"
319ccas="${CCAS-$cc}"
320objcopy="${OBJCOPY-${cross_prefix}objcopy}"
321ld="${LD-${cross_prefix}ld}"
322ranlib="${RANLIB-${cross_prefix}ranlib}"
323nm="${NM-${cross_prefix}nm}"
324smbd="$SMBD"
325strip="${STRIP-${cross_prefix}strip}"
326widl="${WIDL-${cross_prefix}widl}"
327windres="${WINDRES-${cross_prefix}windres}"
328windmc="${WINDMC-${cross_prefix}windmc}"
329pkg_config="${PKG_CONFIG-${cross_prefix}pkg-config}"
330sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
331
332check_define() {
333cat > $TMPC <<EOF
334#if !defined($1)
335#error $1 not defined
336#endif
337int main(void) { return 0; }
338EOF
339  compile_object
340}
341
342write_c_skeleton() {
343    cat > $TMPC <<EOF
344int main(void) { return 0; }
345EOF
346}
347
348if check_define __linux__ ; then
349  targetos=linux
350elif check_define _WIN32 ; then
351  targetos=windows
352elif check_define __OpenBSD__ ; then
353  targetos=openbsd
354elif check_define __sun__ ; then
355  targetos=sunos
356elif check_define __HAIKU__ ; then
357  targetos=haiku
358elif check_define __FreeBSD__ ; then
359  targetos=freebsd
360elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
361  targetos=gnu/kfreebsd
362elif check_define __DragonFly__ ; then
363  targetos=dragonfly
364elif check_define __NetBSD__; then
365  targetos=netbsd
366elif check_define __APPLE__; then
367  targetos=darwin
368else
369  # This is a fatal error, but don't report it yet, because we
370  # might be going to just print the --help text, or it might
371  # be the result of a missing compiler.
372  targetos=bogus
373fi
374
375# OS specific
376
377mingw32="no"
378bsd="no"
379linux="no"
380solaris="no"
381case $targetos in
382windows)
383  mingw32="yes"
384  plugins="no"
385  pie="no"
386;;
387gnu/kfreebsd)
388  bsd="yes"
389;;
390freebsd)
391  bsd="yes"
392  # needed for kinfo_getvmmap(3) in libutil.h
393;;
394dragonfly)
395  bsd="yes"
396;;
397netbsd)
398  bsd="yes"
399;;
400openbsd)
401  bsd="yes"
402;;
403darwin)
404  bsd="yes"
405  darwin="yes"
406;;
407sunos)
408  solaris="yes"
409;;
410haiku)
411  pie="no"
412;;
413linux)
414  linux="yes"
415;;
416esac
417
418if test ! -z "$cpu" ; then
419  # command line argument
420  :
421elif check_define __i386__ ; then
422  cpu="i386"
423elif check_define __x86_64__ ; then
424  if check_define __ILP32__ ; then
425    cpu="x32"
426  else
427    cpu="x86_64"
428  fi
429elif check_define __sparc__ ; then
430  if check_define __arch64__ ; then
431    cpu="sparc64"
432  else
433    cpu="sparc"
434  fi
435elif check_define _ARCH_PPC ; then
436  if check_define _ARCH_PPC64 ; then
437    if check_define _LITTLE_ENDIAN ; then
438      cpu="ppc64le"
439    else
440      cpu="ppc64"
441    fi
442  else
443    cpu="ppc"
444  fi
445elif check_define __mips__ ; then
446  cpu="mips"
447elif check_define __s390__ ; then
448  if check_define __s390x__ ; then
449    cpu="s390x"
450  else
451    cpu="s390"
452  fi
453elif check_define __riscv ; then
454  if check_define _LP64 ; then
455    cpu="riscv64"
456  else
457    cpu="riscv32"
458  fi
459elif check_define __arm__ ; then
460  cpu="arm"
461elif check_define __aarch64__ ; then
462  cpu="aarch64"
463elif check_define __loongarch64 ; then
464  cpu="loongarch64"
465else
466  # Using uname is really broken, but it is just a fallback for architectures
467  # that are going to use TCI anyway
468  cpu=$(uname -m)
469  echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
470fi
471
472# Normalise host CPU name and set multilib cflags.  The canonicalization
473# isn't really necessary, because the architectures that we check for
474# should not hit the 'uname -m' case, but better safe than sorry.
475# Note that this case should only have supported host CPUs, not guests.
476case "$cpu" in
477  armv*b|armv*l|arm)
478    cpu="arm" ;;
479
480  i386|i486|i586|i686)
481    cpu="i386"
482    CPU_CFLAGS="-m32" ;;
483  x32)
484    cpu="x86_64"
485    CPU_CFLAGS="-mx32" ;;
486  x86_64|amd64)
487    cpu="x86_64"
488    # ??? Only extremely old AMD cpus do not have cmpxchg16b.
489    # If we truly care, we should simply detect this case at
490    # runtime and generate the fallback to serial emulation.
491    CPU_CFLAGS="-m64 -mcx16" ;;
492
493  mips*)
494    cpu="mips" ;;
495
496  ppc)
497    CPU_CFLAGS="-m32" ;;
498  ppc64)
499    CPU_CFLAGS="-m64 -mbig-endian" ;;
500  ppc64le)
501    cpu="ppc64"
502    CPU_CFLAGS="-m64 -mlittle-endian" ;;
503
504  s390)
505    CPU_CFLAGS="-m31" ;;
506  s390x)
507    CPU_CFLAGS="-m64" ;;
508
509  sparc|sun4[cdmuv])
510    cpu="sparc"
511    CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
512  sparc64)
513    CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
514esac
515
516check_py_version() {
517    # We require python >= 3.7.
518    # NB: a True python conditional creates a non-zero return code (Failure)
519    "$1" -c 'import sys; sys.exit(sys.version_info < (3,7))'
520}
521
522first_python=
523if test -z "${PYTHON}"; then
524    # A bare 'python' is traditionally python 2.x, but some distros
525    # have it as python 3.x, so check in both places.
526    for binary in python3 python python3.11 python3.10 python3.9 python3.8 python3.7; do
527        if has "$binary"; then
528            python=$(command -v "$binary")
529            if check_py_version "$python"; then
530                # This one is good.
531                first_python=
532                break
533            else
534                first_python=$python
535            fi
536        fi
537    done
538else
539    # Same as above, but only check the environment variable.
540    has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
541    python=$(command -v "$PYTHON")
542    if check_py_version "$python"; then
543        # This one is good.
544        first_python=
545    else
546        first_python=$first_python
547    fi
548fi
549
550# Check for ancillary tools used in testing
551genisoimage=
552for binary in genisoimage mkisofs
553do
554    if has $binary
555    then
556        genisoimage=$(command -v "$binary")
557        break
558    fi
559done
560
561if test "$mingw32" = "yes" ; then
562  EXESUF=".exe"
563  prefix="/qemu"
564  bindir=""
565  qemu_suffix=""
566fi
567
568meson_option_build_array() {
569  printf '['
570  (if test "$targetos" = windows; then
571    IFS=\;
572  else
573    IFS=:
574  fi
575  for e in $1; do
576    printf '"""'
577    # backslash escape any '\' and '"' characters
578    printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
579    printf '""",'
580  done)
581  printf ']\n'
582}
583
584. "$source_path/scripts/meson-buildoptions.sh"
585
586meson_options=
587meson_option_add() {
588  meson_options="$meson_options $(quote_sh "$1")"
589}
590meson_option_parse() {
591  meson_options="$meson_options $(_meson_option_parse "$@")"
592  if test $? -eq 1; then
593    echo "ERROR: unknown option $1"
594    echo "Try '$0 --help' for more information"
595    exit 1
596  fi
597}
598
599for opt do
600  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
601  case "$opt" in
602  --help|-h) show_help=yes
603  ;;
604  --version|-V) exec cat "$source_path/VERSION"
605  ;;
606  --prefix=*) prefix="$optarg"
607  ;;
608  --cross-prefix=*)
609  ;;
610  --cc=*)
611  ;;
612  --host-cc=*) host_cc="$optarg"
613  ;;
614  --cxx=*)
615  ;;
616  --objcc=*)
617  ;;
618  --make=*)
619  ;;
620  --install=*)
621  ;;
622  --python=*) python="$optarg"
623  ;;
624  --skip-meson) skip_meson=yes
625  ;;
626  --ninja=*) ninja="$optarg"
627  ;;
628  --smbd=*) smbd="$optarg"
629  ;;
630  --extra-cflags=*)
631  ;;
632  --extra-cxxflags=*)
633  ;;
634  --extra-objcflags=*)
635  ;;
636  --extra-ldflags=*)
637  ;;
638  --cross-cc-*)
639  ;;
640  --cross-prefix-*)
641  ;;
642  --enable-docs) docs=enabled
643  ;;
644  --disable-docs) docs=disabled
645  ;;
646  --cpu=*)
647  ;;
648  --target-list=*) target_list="$optarg"
649                   if test "$target_list_exclude"; then
650                       error_exit "Can't mix --target-list with --target-list-exclude"
651                   fi
652  ;;
653  --target-list-exclude=*) target_list_exclude="$optarg"
654                   if test "$target_list"; then
655                       error_exit "Can't mix --target-list-exclude with --target-list"
656                   fi
657  ;;
658  --with-default-devices) meson_option_add -Ddefault_devices=true
659  ;;
660  --without-default-devices) meson_option_add -Ddefault_devices=false
661  ;;
662  --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
663  ;;
664  --with-devices-*) device_arch=${opt#--with-devices-};
665                    device_arch=${device_arch%%=*}
666                    cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
667                    if test -f "$cf"; then
668                        device_archs="$device_archs $device_arch"
669                        eval "devices_${device_arch}=\$optarg"
670                    else
671                        error_exit "File $cf does not exist"
672                    fi
673  ;;
674  --without-default-features) # processed above
675  ;;
676  --static) static="yes"
677  ;;
678  --bindir=*) bindir="$optarg"
679  ;;
680  --with-suffix=*) qemu_suffix="$optarg"
681  ;;
682  --host=*|--build=*|\
683  --disable-dependency-tracking|\
684  --sbindir=*|--sharedstatedir=*|\
685  --oldincludedir=*|--datarootdir=*|--infodir=*|\
686  --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
687    # These switches are silently ignored, for compatibility with
688    # autoconf-generated configure scripts. This allows QEMU's
689    # configure to be used by RPM and similar macros that set
690    # lots of directory switches by default.
691  ;;
692  --enable-debug-tcg) debug_tcg="yes"
693  ;;
694  --disable-debug-tcg) debug_tcg="no"
695  ;;
696  --enable-debug)
697      # Enable debugging options that aren't excessively noisy
698      debug_tcg="yes"
699      meson_option_parse --enable-debug-graph-lock ""
700      meson_option_parse --enable-debug-mutex ""
701      meson_option_add -Doptimization=0
702  ;;
703  --disable-tcg) tcg="disabled"
704                 plugins="no"
705  ;;
706  --enable-tcg) tcg="enabled"
707  ;;
708  --disable-system) softmmu="no"
709  ;;
710  --enable-system) softmmu="yes"
711  ;;
712  --disable-user)
713      linux_user="no" ;
714      bsd_user="no" ;
715  ;;
716  --enable-user) ;;
717  --disable-linux-user) linux_user="no"
718  ;;
719  --enable-linux-user) linux_user="yes"
720  ;;
721  --disable-bsd-user) bsd_user="no"
722  ;;
723  --enable-bsd-user) bsd_user="yes"
724  ;;
725  --enable-pie) pie="yes"
726  ;;
727  --disable-pie) pie="no"
728  ;;
729  --enable-werror) werror="yes"
730  ;;
731  --disable-werror) werror="no"
732  ;;
733  --enable-cfi)
734      cfi="true";
735      meson_option_add -Db_lto=true
736  ;;
737  --disable-cfi) cfi="false"
738  ;;
739  --disable-download) download="disabled"; git_submodules_action=validate;
740  ;;
741  --enable-download) download="enabled"; git_submodules_action=update;
742  ;;
743  --enable-plugins) if test "$mingw32" = "yes"; then
744                        error_exit "TCG plugins not currently supported on Windows platforms"
745                    else
746                        plugins="yes"
747                    fi
748  ;;
749  --disable-plugins) plugins="no"
750  ;;
751  --enable-containers) use_containers="yes"
752  ;;
753  --disable-containers) use_containers="no"
754  ;;
755  --gdb=*) gdb_bin="$optarg"
756  ;;
757  # everything else has the same name in configure and meson
758  --*) meson_option_parse "$opt" "$optarg"
759  ;;
760  esac
761done
762
763if ! test -e "$source_path/.git"
764then
765    git_submodules_action="validate"
766fi
767
768# test for any invalid configuration combinations
769if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
770    error_exit "Can't enable plugins on non-TCG builds"
771fi
772
773if ! test -f "$source_path/subprojects/keycodemapdb/README" \
774    && test "$download" = disabled
775then
776    echo
777    echo "ERROR: missing subprojects"
778    echo
779    if test -e "$source_path/.git"; then
780        echo "--disable-download specified but subprojects were not"
781        echo 'checked out.  Please invoke "meson subprojects download"'
782        echo "before configuring QEMU, or remove --disable-download"
783        echo "from the command line."
784    else
785        echo "This is not a GIT checkout but subproject content appears to"
786        echo "be missing. Do not use 'git archive' or GitHub download links"
787        echo "to acquire QEMU source archives. Non-GIT builds are only"
788        echo "supported with source archives linked from:"
789        echo
790        echo "  https://www.qemu.org/download/#source"
791        echo
792        echo "Developers working with GIT can use scripts/archive-source.sh"
793        echo "if they need to create valid source archives."
794    fi
795    echo
796    exit 1
797fi
798
799default_target_list=""
800mak_wilds=""
801
802if [ "$linux_user" != no ]; then
803    if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then
804        linux_user=yes
805    elif [ "$linux_user" = yes ]; then
806        error_exit "linux-user not supported on this architecture"
807    fi
808fi
809if [ "$bsd_user" != no ]; then
810    if [ "$bsd_user" = "" ]; then
811        test $targetos = freebsd && bsd_user=yes
812    fi
813    if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
814        error_exit "bsd-user not supported on this host OS"
815    fi
816fi
817if [ "$softmmu" = "yes" ]; then
818    mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
819fi
820if [ "$linux_user" = "yes" ]; then
821    mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
822fi
823if [ "$bsd_user" = "yes" ]; then
824    mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
825fi
826
827for config in $mak_wilds; do
828    target="$(basename "$config" .mak)"
829    if echo "$target_list_exclude" | grep -vq "$target"; then
830        default_target_list="${default_target_list} $target"
831    fi
832done
833
834if test x"$show_help" = x"yes" ; then
835cat << EOF
836
837Usage: configure [options]
838Options: [defaults in brackets after descriptions]
839
840Standard options:
841  --help                   print this message
842  --prefix=PREFIX          install in PREFIX [$prefix]
843  --target-list=LIST       set target list (default: build all)
844$(echo Available targets: $default_target_list | \
845  fold -s -w 53 | sed -e 's/^/                           /')
846  --target-list-exclude=LIST exclude a set of targets from the default target-list
847
848Advanced options (experts only):
849  --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
850  --cc=CC                  use C compiler CC [$cc]
851  --host-cc=CC             use C compiler CC [$host_cc] for code run at
852                           build time
853  --cxx=CXX                use C++ compiler CXX [$cxx]
854  --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
855  --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
856  --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
857  --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
858  --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
859  --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
860  --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
861  --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
862  --python=PYTHON          use specified python [$python]
863  --ninja=NINJA            use specified ninja [$ninja]
864  --smbd=SMBD              use specified smbd [$smbd]
865  --static                 enable static build [$static]
866  --bindir=PATH            install binaries in PATH
867  --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
868  --without-default-features default all --enable-* options to "disabled"
869  --without-default-devices  do not include any device that is not needed to
870                           start the emulator (only use if you are including
871                           desired devices in configs/devices/)
872  --with-devices-ARCH=NAME override default configs/devices
873  --enable-debug           enable common debug build options
874  --disable-werror         disable compilation abort on warning
875  --cpu=CPU                Build for host CPU [$cpu]
876  --enable-plugins
877                           enable plugins via shared library loading
878  --disable-containers     don't use containers for cross-building
879  --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
880EOF
881  meson_options_help
882cat << EOF
883  system          all system emulation targets
884  user            supported user emulation targets
885  linux-user      all linux usermode emulation targets
886  bsd-user        all BSD usermode emulation targets
887  pie             Position Independent Executables
888  debug-tcg       TCG debugging (default is disabled)
889
890NOTE: The object files are built at the place where configure is launched
891EOF
892exit 0
893fi
894
895# Remove old dependency files to make sure that they get properly regenerated
896rm -f ./*/config-devices.mak.d
897
898if test -z "$python"
899then
900    # If first_python is set, there was a binary somewhere even though
901    # it was not suitable.  Use it for the error message.
902    if test -n "$first_python"; then
903        error_exit "Cannot use '$first_python', Python >= 3.7 is required." \
904            "Use --python=/path/to/python to specify a supported Python."
905    else
906        error_exit "Python not found. Use --python=/path/to/python"
907    fi
908fi
909
910if ! check_py_version "$python"; then
911  error_exit "Cannot use '$python', Python >= 3.7 is required." \
912             "Use --python=/path/to/python to specify a supported Python." \
913             "Maybe try:" \
914             "  openSUSE Leap 15.3+: zypper install python39" \
915             "  CentOS 8: dnf install python38"
916fi
917
918# Resolve PATH
919python="$(command -v "$python")"
920
921# Create a Python virtual environment using our configured python.
922# The stdout of this script will be the location of a symlink that
923# points to the configured Python.
924# Entry point scripts for pip, meson, and sphinx are generated if those
925# packages are present.
926
927# Defaults assumed for now:
928# - venv is cleared if it exists already;
929# - venv is allowed to use system packages;
930# - all setup can be performed offline;
931# - missing packages may be fetched from PyPI,
932#   unless --disable-download is passed.
933# - pip is not installed into the venv when possible,
934#   but ensurepip is called as a fallback when necessary.
935
936echo "python determined to be '$python'"
937echo "python version: $($python --version)"
938
939python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
940if test "$?" -ne 0 ; then
941    error_exit "python venv creation failed"
942fi
943
944# Suppress writing compiled files
945python="$python -B"
946mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
947
948mkvenv_flags=""
949if test "$download" = "enabled" ; then
950    mkvenv_flags="--online"
951fi
952
953if ! $mkvenv ensure \
954     $mkvenv_flags \
955     --dir "${source_path}/python/wheels" \
956     --diagnose "meson" \
957     "meson>=0.63.0" ;
958then
959    exit 1
960fi
961
962# At this point, we expect Meson to be installed and available.
963# We expect mkvenv or pip to have created pyvenv/bin/meson for us.
964# We ignore PATH completely here: we want to use the venv's Meson
965# *exclusively*.
966
967meson="$(cd pyvenv/bin; pwd)/meson"
968
969# Conditionally ensure Sphinx is installed.
970
971mkvenv_flags=""
972if test "$download" = "enabled" -a "$docs" = "enabled" ; then
973    mkvenv_flags="--online"
974fi
975
976if test "$docs" != "disabled" ; then
977    if ! $mkvenv ensure \
978         $mkvenv_flags \
979         --diagnose "sphinx-build" \
980         "sphinx>=1.6.0" "sphinx-rtd-theme>=0.5.0";
981    then
982        if test "$docs" = "enabled" ; then
983            exit 1
984        fi
985        echo "Sphinx not found/usable, disabling docs."
986        docs=disabled
987    else
988        docs=enabled
989    fi
990fi
991
992# Probe for ninja
993
994if test -z "$ninja"; then
995    for c in ninja ninja-build samu; do
996        if has $c; then
997            ninja=$(command -v "$c")
998            break
999        fi
1000    done
1001    if test -z "$ninja"; then
1002      error_exit "Cannot find Ninja"
1003    fi
1004fi
1005
1006# Consult white-list to determine whether to enable werror
1007# by default.  Only enable by default for git builds
1008if test -z "$werror" ; then
1009    if test -e "$source_path/.git" && \
1010        { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1011        werror="yes"
1012    else
1013        werror="no"
1014    fi
1015fi
1016
1017if test "$targetos" = "bogus"; then
1018    # Now that we know that we're not printing the help and that
1019    # the compiler works (so the results of the check_defines we used
1020    # to identify the OS are reliable), if we didn't recognize the
1021    # host OS we should stop now.
1022    error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1023fi
1024
1025if test "$static" = "yes" ; then
1026  if test "$plugins" = "yes"; then
1027    error_exit "static and plugins are mutually incompatible"
1028  else
1029    plugins="no"
1030  fi
1031fi
1032test "$plugins" = "" && plugins=yes
1033
1034cat > $TMPC << EOF
1035
1036#ifdef __linux__
1037#  define THREAD __thread
1038#else
1039#  define THREAD
1040#endif
1041static THREAD int tls_var;
1042int main(void) { return tls_var; }
1043EOF
1044
1045if test "$static" = "yes"; then
1046  if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1047    pie="yes"
1048  elif test "$pie" = "yes"; then
1049    error_exit "-static-pie not available due to missing toolchain support"
1050  else
1051    pie="no"
1052  fi
1053elif test "$pie" != "no"; then
1054  if compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1055    pie="yes"
1056  elif test "$pie" = "yes"; then
1057    error_exit "PIE not available due to missing toolchain support"
1058  else
1059    echo "Disabling PIE due to missing toolchain support"
1060    pie="no"
1061  fi
1062fi
1063
1064##########################################
1065
1066if test -z "${target_list+xxx}" ; then
1067    default_targets=yes
1068    for target in $default_target_list; do
1069        target_list="$target_list $target"
1070    done
1071    target_list="${target_list# }"
1072else
1073    default_targets=no
1074    target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1075    for target in $target_list; do
1076        # Check that we recognised the target name; this allows a more
1077        # friendly error message than if we let it fall through.
1078        case " $default_target_list " in
1079            *" $target "*)
1080                ;;
1081            *)
1082                error_exit "Unknown target name '$target'"
1083                ;;
1084        esac
1085    done
1086fi
1087
1088# see if system emulation was really requested
1089case " $target_list " in
1090  *"-softmmu "*) softmmu=yes
1091  ;;
1092  *) softmmu=no
1093  ;;
1094esac
1095
1096if test "$tcg" = "auto"; then
1097  if test -z "$target_list"; then
1098    tcg="disabled"
1099  else
1100    tcg="enabled"
1101  fi
1102fi
1103
1104##########################################
1105# big/little endian test
1106cat > $TMPC << EOF
1107#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1108# error LITTLE
1109#endif
1110int main(void) { return 0; }
1111EOF
1112
1113if ! compile_prog ; then
1114  bigendian="no"
1115else
1116  cat > $TMPC << EOF
1117#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1118# error BIG
1119#endif
1120int main(void) { return 0; }
1121EOF
1122
1123  if ! compile_prog ; then
1124    bigendian="yes"
1125  else
1126    echo big/little test failed
1127    exit 1
1128  fi
1129fi
1130
1131########################################
1132# check if ccache is interfering with
1133# semantic analysis of macros
1134
1135unset CCACHE_CPP2
1136ccache_cpp2=no
1137cat > $TMPC << EOF
1138static const int Z = 1;
1139#define fn() ({ Z; })
1140#define TAUT(X) ((X) == Z)
1141#define PAREN(X, Y) (X == Y)
1142#define ID(X) (X)
1143int main(void)
1144{
1145    int x = 0, y = 0;
1146    x = ID(x);
1147    x = fn();
1148    fn();
1149    if (PAREN(x, y)) return 0;
1150    if (TAUT(Z)) return 0;
1151    return 0;
1152}
1153EOF
1154
1155if ! compile_object "-Werror"; then
1156    ccache_cpp2=yes
1157fi
1158
1159##########################################
1160# functions to probe cross compilers
1161
1162container="no"
1163runc=""
1164if test $use_containers = "yes" && (has "docker" || has "podman"); then
1165    case $($python "$source_path"/tests/docker/docker.py probe) in
1166        *docker) container=docker ;;
1167        podman) container=podman ;;
1168        no) container=no ;;
1169    esac
1170    if test "$container" != "no"; then
1171        docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1172        runc=$($python "$source_path"/tests/docker/docker.py probe)
1173    fi
1174fi
1175
1176# cross compilers defaults, can be overridden with --cross-cc-ARCH
1177: ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1178: ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1179: ${cross_prefix_alpha="alpha-linux-gnu-"}
1180: ${cross_prefix_arm="arm-linux-gnueabihf-"}
1181: ${cross_prefix_armeb="$cross_prefix_arm"}
1182: ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1183: ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1184: ${cross_prefix_hppa="hppa-linux-gnu-"}
1185: ${cross_prefix_i386="i686-linux-gnu-"}
1186: ${cross_prefix_m68k="m68k-linux-gnu-"}
1187: ${cross_prefix_microblaze="microblaze-linux-musl-"}
1188: ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1189: ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1190: ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1191: ${cross_prefix_mips="mips-linux-gnu-"}
1192: ${cross_prefix_nios2="nios2-linux-gnu-"}
1193: ${cross_prefix_ppc="powerpc-linux-gnu-"}
1194: ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1195: ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1196: ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1197: ${cross_prefix_s390x="s390x-linux-gnu-"}
1198: ${cross_prefix_sh4="sh4-linux-gnu-"}
1199: ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1200: ${cross_prefix_sparc="$cross_prefix_sparc64"}
1201: ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1202
1203: ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1204: ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1205: ${cross_cc_armeb="$cross_cc_arm"}
1206: ${cross_cc_cflags_armeb="-mbig-endian"}
1207: ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1208: ${cross_cc_cflags_hexagon="-mv73 -O2 -static"}
1209: ${cross_cc_cflags_i386="-m32"}
1210: ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1211: ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1212: ${cross_cc_ppc64le="$cross_cc_ppc64"}
1213: ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1214: ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1215: ${cross_cc_sparc="$cross_cc_sparc64"}
1216: ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1217: ${cross_cc_cflags_x86_64="-m64"}
1218
1219compute_target_variable() {
1220  eval "$2="
1221  if eval test -n "\"\${cross_prefix_$1}\""; then
1222    if eval has "\"\${cross_prefix_$1}\$3\""; then
1223      eval "$2=\"\${cross_prefix_$1}\$3\""
1224    fi
1225  fi
1226}
1227
1228have_target() {
1229  for i; do
1230    case " $target_list " in
1231      *" $i "*) return 0;;
1232      *) ;;
1233    esac
1234  done
1235  return 1
1236}
1237
1238# probe_target_compiler TARGET
1239#
1240# Look for a compiler for the given target, either native or cross.
1241# Set variables target_* if a compiler is found, and container_cross_*
1242# if a Docker-based cross-compiler image is known for the target.
1243# Set got_cross_cc to yes/no depending on whether a non-container-based
1244# compiler was found.
1245#
1246# If TARGET is a user-mode emulation target, also set build_static to
1247# "y" if static linking is possible.
1248#
1249probe_target_compiler() {
1250  # reset all output variables
1251  got_cross_cc=no
1252  container_image=
1253  container_hosts=
1254  container_cross_cc=
1255  container_cross_ar=
1256  container_cross_as=
1257  container_cross_ld=
1258  container_cross_nm=
1259  container_cross_objcopy=
1260  container_cross_ranlib=
1261  container_cross_strip=
1262
1263  target_arch=${1%%-*}
1264  case $target_arch in
1265    aarch64) container_hosts="x86_64 aarch64" ;;
1266    alpha) container_hosts=x86_64 ;;
1267    arm) container_hosts="x86_64 aarch64" ;;
1268    cris) container_hosts=x86_64 ;;
1269    hexagon) container_hosts=x86_64 ;;
1270    hppa) container_hosts=x86_64 ;;
1271    i386) container_hosts=x86_64 ;;
1272    loongarch64) container_hosts=x86_64 ;;
1273    m68k) container_hosts=x86_64 ;;
1274    microblaze) container_hosts=x86_64 ;;
1275    mips64el) container_hosts=x86_64 ;;
1276    mips64) container_hosts=x86_64 ;;
1277    mipsel) container_hosts=x86_64 ;;
1278    mips) container_hosts=x86_64 ;;
1279    nios2) container_hosts=x86_64 ;;
1280    ppc) container_hosts=x86_64 ;;
1281    ppc64|ppc64le) container_hosts=x86_64 ;;
1282    riscv64) container_hosts=x86_64 ;;
1283    s390x) container_hosts=x86_64 ;;
1284    sh4) container_hosts=x86_64 ;;
1285    sparc64) container_hosts=x86_64 ;;
1286    tricore) container_hosts=x86_64 ;;
1287    x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1288    xtensa*) container_hosts=x86_64 ;;
1289  esac
1290
1291  for host in $container_hosts; do
1292    test "$container" != no || continue
1293    test "$host" = "$cpu" || continue
1294    case $target_arch in
1295      aarch64)
1296        # We don't have any bigendian build tools so we only use this for AArch64
1297        container_image=debian-arm64-cross
1298        container_cross_prefix=aarch64-linux-gnu-
1299        container_cross_cc=${container_cross_prefix}gcc-10
1300        ;;
1301      alpha)
1302        container_image=debian-alpha-cross
1303        container_cross_prefix=alpha-linux-gnu-
1304        ;;
1305      arm)
1306        # We don't have any bigendian build tools so we only use this for ARM
1307        container_image=debian-armhf-cross
1308        container_cross_prefix=arm-linux-gnueabihf-
1309        ;;
1310      cris)
1311        container_image=fedora-cris-cross
1312        container_cross_prefix=cris-linux-gnu-
1313        ;;
1314      hexagon)
1315        container_image=debian-hexagon-cross
1316        container_cross_prefix=hexagon-unknown-linux-musl-
1317        container_cross_cc=${container_cross_prefix}clang
1318        ;;
1319      hppa)
1320        container_image=debian-hppa-cross
1321        container_cross_prefix=hppa-linux-gnu-
1322        ;;
1323      i386)
1324        container_image=fedora-i386-cross
1325        container_cross_prefix=
1326        ;;
1327      loongarch64)
1328        container_image=debian-loongarch-cross
1329        container_cross_prefix=loongarch64-unknown-linux-gnu-
1330        ;;
1331      m68k)
1332        container_image=debian-m68k-cross
1333        container_cross_prefix=m68k-linux-gnu-
1334        ;;
1335      microblaze)
1336        container_image=debian-microblaze-cross
1337        container_cross_prefix=microblaze-linux-musl-
1338        ;;
1339      mips64el)
1340        container_image=debian-mips64el-cross
1341        container_cross_prefix=mips64el-linux-gnuabi64-
1342        ;;
1343      mips64)
1344        container_image=debian-mips64-cross
1345        container_cross_prefix=mips64-linux-gnuabi64-
1346        ;;
1347      mipsel)
1348        container_image=debian-mipsel-cross
1349        container_cross_prefix=mipsel-linux-gnu-
1350        ;;
1351      mips)
1352        container_image=debian-mips-cross
1353        container_cross_prefix=mips-linux-gnu-
1354        ;;
1355      nios2)
1356        container_image=debian-nios2-cross
1357        container_cross_prefix=nios2-linux-gnu-
1358        ;;
1359      ppc)
1360        container_image=debian-powerpc-test-cross
1361        container_cross_prefix=powerpc-linux-gnu-
1362        container_cross_cc=${container_cross_prefix}gcc-10
1363        ;;
1364      ppc64|ppc64le)
1365        container_image=debian-powerpc-test-cross
1366        container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1367        container_cross_cc=${container_cross_prefix}gcc-10
1368        ;;
1369      riscv64)
1370        container_image=debian-riscv64-test-cross
1371        container_cross_prefix=riscv64-linux-gnu-
1372        ;;
1373      s390x)
1374        container_image=debian-s390x-cross
1375        container_cross_prefix=s390x-linux-gnu-
1376        ;;
1377      sh4)
1378        container_image=debian-sh4-cross
1379        container_cross_prefix=sh4-linux-gnu-
1380        ;;
1381      sparc64)
1382        container_image=debian-sparc64-cross
1383        container_cross_prefix=sparc64-linux-gnu-
1384        ;;
1385      tricore)
1386        container_image=debian-tricore-cross
1387        container_cross_prefix=tricore-
1388        container_cross_as=tricore-as
1389        container_cross_ld=tricore-ld
1390        container_cross_cc=tricore-gcc
1391        break
1392        ;;
1393      x86_64)
1394        container_image=debian-amd64-cross
1395        container_cross_prefix=x86_64-linux-gnu-
1396        ;;
1397      xtensa*)
1398        container_hosts=x86_64
1399        container_image=debian-xtensa-cross
1400
1401        # default to the dc232b cpu
1402        container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1403        ;;
1404    esac
1405    : ${container_cross_cc:=${container_cross_prefix}gcc}
1406    : ${container_cross_ar:=${container_cross_prefix}ar}
1407    : ${container_cross_as:=${container_cross_prefix}as}
1408    : ${container_cross_ld:=${container_cross_prefix}ld}
1409    : ${container_cross_nm:=${container_cross_prefix}nm}
1410    : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
1411    : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
1412    : ${container_cross_strip:=${container_cross_prefix}strip}
1413  done
1414
1415  try=cross
1416  case "$target_arch:$cpu" in
1417    aarch64_be:aarch64 | \
1418    armeb:arm | \
1419    i386:x86_64 | \
1420    mips*:mips64 | \
1421    ppc*:ppc64 | \
1422    sparc:sparc64 | \
1423    "$cpu:$cpu")
1424      try='native cross' ;;
1425  esac
1426  eval "target_cflags=\${cross_cc_cflags_$target_arch}"
1427  for thistry in $try; do
1428    case $thistry in
1429    native)
1430      target_cc=$cc
1431      target_ccas=$ccas
1432      target_ar=$ar
1433      target_as=$as
1434      target_ld=$ld
1435      target_nm=$nm
1436      target_objcopy=$objcopy
1437      target_ranlib=$ranlib
1438      target_strip=$strip
1439      ;;
1440    cross)
1441      target_cc=
1442      if eval test -n "\"\${cross_cc_$target_arch}\""; then
1443        if eval has "\"\${cross_cc_$target_arch}\""; then
1444          eval "target_cc=\"\${cross_cc_$target_arch}\""
1445        fi
1446      else
1447        compute_target_variable $target_arch target_cc gcc
1448      fi
1449      target_ccas=$target_cc
1450      compute_target_variable $target_arch target_ar ar
1451      compute_target_variable $target_arch target_as as
1452      compute_target_variable $target_arch target_ld ld
1453      compute_target_variable $target_arch target_nm nm
1454      compute_target_variable $target_arch target_objcopy objcopy
1455      compute_target_variable $target_arch target_ranlib ranlib
1456      compute_target_variable $target_arch target_strip strip
1457      ;;
1458    esac
1459
1460    if test -n "$target_cc"; then
1461      case $target_arch in
1462        i386|x86_64)
1463          if $target_cc --version | grep -qi "clang"; then
1464            continue
1465          fi
1466          ;;
1467      esac
1468    elif test -n "$target_as" && test -n "$target_ld"; then
1469      # Special handling for assembler only targets
1470      case $target in
1471        tricore-softmmu)
1472          build_static=
1473          got_cross_cc=yes
1474          break
1475          ;;
1476        *)
1477          continue
1478          ;;
1479      esac
1480    else
1481      continue
1482    fi
1483
1484    write_c_skeleton
1485    case $1 in
1486      *-softmmu)
1487        if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
1488          do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
1489          got_cross_cc=yes
1490          break
1491        fi
1492        ;;
1493      *)
1494        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
1495          build_static=y
1496          got_cross_cc=yes
1497          break
1498        fi
1499        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
1500          build_static=
1501          got_cross_cc=yes
1502          break
1503        fi
1504        ;;
1505    esac
1506  done
1507  if test $got_cross_cc != yes; then
1508    build_static=
1509    target_cc=
1510    target_ccas=
1511    target_ar=
1512    target_as=
1513    target_ld=
1514    target_nm=
1515    target_objcopy=
1516    target_ranlib=
1517    target_strip=
1518  fi
1519  test -n "$target_cc"
1520}
1521
1522write_target_makefile() {
1523  echo "EXTRA_CFLAGS=$target_cflags"
1524  if test -z "$target_cc" && test -z "$target_as"; then
1525    test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
1526    echo "$1: docker-image-$container_image" >> Makefile.prereqs
1527    if test -n "$container_cross_cc"; then
1528      echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1529      echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1530    fi
1531    echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
1532    echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
1533    echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
1534    echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
1535    echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
1536    echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
1537    echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
1538  else
1539    if test -n "$target_cc"; then
1540      echo "CC=$target_cc"
1541      echo "CCAS=$target_ccas"
1542    fi
1543    if test -n "$target_ar"; then
1544      echo "AR=$target_ar"
1545    fi
1546    if test -n "$target_as"; then
1547      echo "AS=$target_as"
1548    fi
1549    if test -n "$target_ld"; then
1550      echo "LD=$target_ld"
1551    fi
1552    if test -n "$target_nm"; then
1553      echo "NM=$target_nm"
1554    fi
1555    if test -n "$target_objcopy"; then
1556      echo "OBJCOPY=$target_objcopy"
1557    fi
1558    if test -n "$target_ranlib"; then
1559      echo "RANLIB=$target_ranlib"
1560    fi
1561    if test -n "$target_strip"; then
1562      echo "STRIP=$target_strip"
1563    fi
1564  fi
1565}
1566
1567#######################################
1568# cross-compiled firmware targets
1569
1570# Set up build tree symlinks that point back into the source tree
1571# (these can be both files and directories).
1572# Caution: avoid adding files or directories here using wildcards. This
1573# will result in problems later if a new file matching the wildcard is
1574# added to the source tree -- nothing will cause configure to be rerun
1575# so the build tree will be missing the link back to the new file, and
1576# tests might fail. Prefer to keep the relevant files in their own
1577# directory and symlink the directory instead.
1578LINKS="Makefile"
1579LINKS="$LINKS docs/config"
1580LINKS="$LINKS pc-bios/optionrom/Makefile"
1581LINKS="$LINKS pc-bios/s390-ccw/Makefile"
1582LINKS="$LINKS pc-bios/vof/Makefile"
1583LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
1584LINKS="$LINKS tests/avocado tests/data"
1585LINKS="$LINKS tests/qemu-iotests/check"
1586LINKS="$LINKS python"
1587LINKS="$LINKS contrib/plugins/Makefile "
1588for f in $LINKS ; do
1589    if [ -e "$source_path/$f" ]; then
1590        symlink "$source_path/$f" "$f"
1591    fi
1592done
1593
1594echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
1595
1596# Mac OS X ships with a broken assembler
1597roms=
1598if have_target i386-softmmu x86_64-softmmu && \
1599        test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
1600        test "$targetos" != "haiku" && \
1601        probe_target_compiler i386-softmmu; then
1602    roms="pc-bios/optionrom"
1603    config_mak=pc-bios/optionrom/config.mak
1604    echo "# Automatically generated by configure - do not modify" > $config_mak
1605    echo "TOPSRC_DIR=$source_path" >> $config_mak
1606    write_target_makefile >> $config_mak
1607fi
1608
1609if have_target ppc-softmmu ppc64-softmmu && \
1610        probe_target_compiler ppc-softmmu; then
1611    roms="$roms pc-bios/vof"
1612    config_mak=pc-bios/vof/config.mak
1613    echo "# Automatically generated by configure - do not modify" > $config_mak
1614    echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
1615    write_target_makefile >> $config_mak
1616fi
1617
1618# Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
1619# (which is the lowest architecture level that Clang supports)
1620if have_target s390x-softmmu && probe_target_compiler s390x-softmmu && \
1621    GIT=git "$source_path/scripts/git-submodule.sh" "$git_submodules_action" roms/SLOF >> config.log 2>&1; then
1622  write_c_skeleton
1623  do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
1624  has_z900=$?
1625  if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
1626    if [ $has_z900 != 0 ]; then
1627      echo "WARNING: Your compiler does not support the z900!"
1628      echo "         The s390-ccw bios will only work with guest CPUs >= z10."
1629    fi
1630    roms="$roms pc-bios/s390-ccw"
1631    config_mak=pc-bios/s390-ccw/config-host.mak
1632    echo "# Automatically generated by configure - do not modify" > $config_mak
1633    echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
1634    echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_mak
1635    write_target_makefile >> $config_mak
1636  fi
1637fi
1638
1639#######################################
1640# generate config-host.mak
1641
1642config_host_mak="config-host.mak"
1643
1644echo "# Automatically generated by configure - do not modify" > $config_host_mak
1645echo >> $config_host_mak
1646
1647echo all: >> $config_host_mak
1648
1649if test "$debug_tcg" = "yes" ; then
1650  echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
1651fi
1652if test "$mingw32" = "yes" ; then
1653  echo "CONFIG_WIN32=y" >> $config_host_mak
1654  echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
1655  echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
1656  echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
1657else
1658  echo "CONFIG_POSIX=y" >> $config_host_mak
1659fi
1660
1661if test "$linux" = "yes" ; then
1662  echo "CONFIG_LINUX=y" >> $config_host_mak
1663fi
1664
1665if test "$darwin" = "yes" ; then
1666  echo "CONFIG_DARWIN=y" >> $config_host_mak
1667fi
1668
1669if test "$solaris" = "yes" ; then
1670  echo "CONFIG_SOLARIS=y" >> $config_host_mak
1671fi
1672echo "SRC_PATH=$source_path" >> $config_host_mak
1673echo "TARGET_DIRS=$target_list" >> $config_host_mak
1674
1675# XXX: suppress that
1676if [ "$bsd" = "yes" ] ; then
1677  echo "CONFIG_BSD=y" >> $config_host_mak
1678fi
1679
1680if test "$plugins" = "yes" ; then
1681    echo "CONFIG_PLUGIN=y" >> $config_host_mak
1682fi
1683
1684if test -n "$gdb_bin"; then
1685    gdb_version=$($gdb_bin --version | head -n 1)
1686    if version_ge ${gdb_version##* } 9.1; then
1687        echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
1688        gdb_arches=$($python "$source_path/scripts/probe-gdb-support.py" $gdb_bin)
1689    else
1690        gdb_bin=""
1691    fi
1692fi
1693
1694if test "$container" != no; then
1695    echo "ENGINE=$container" >> $config_host_mak
1696    echo "RUNC=$runc" >> $config_host_mak
1697fi
1698echo "ROMS=$roms" >> $config_host_mak
1699echo "PYTHON=$python" >> $config_host_mak
1700echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
1701echo "MESON=$meson" >> $config_host_mak
1702echo "NINJA=$ninja" >> $config_host_mak
1703echo "PKG_CONFIG=${pkg_config}" >> $config_host_mak
1704echo "CC=$cc" >> $config_host_mak
1705echo "EXESUF=$EXESUF" >> $config_host_mak
1706
1707# use included Linux headers
1708if test "$linux" = "yes" ; then
1709  mkdir -p linux-headers
1710  case "$cpu" in
1711  i386|x86_64)
1712    linux_arch=x86
1713    ;;
1714  ppc|ppc64)
1715    linux_arch=powerpc
1716    ;;
1717  s390x)
1718    linux_arch=s390
1719    ;;
1720  aarch64)
1721    linux_arch=arm64
1722    ;;
1723  loongarch*)
1724    linux_arch=loongarch
1725    ;;
1726  mips64)
1727    linux_arch=mips
1728    ;;
1729  riscv32|riscv64)
1730    linux_arch=riscv
1731    ;;
1732  *)
1733    # For most CPUs the kernel architecture name and QEMU CPU name match.
1734    linux_arch="$cpu"
1735    ;;
1736  esac
1737    # For non-KVM architectures we will not have asm headers
1738    if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
1739      symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
1740    fi
1741fi
1742
1743for target in $target_list; do
1744    target_dir="$target"
1745    target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
1746    mkdir -p "$target_dir"
1747    case $target in
1748        *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
1749        *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
1750    esac
1751done
1752
1753if test "$default_targets" = "yes"; then
1754  echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
1755fi
1756
1757if test "$ccache_cpp2" = "yes"; then
1758  echo "export CCACHE_CPP2=y" >> $config_host_mak
1759fi
1760
1761# tests/tcg configuration
1762(config_host_mak=tests/tcg/config-host.mak
1763mkdir -p tests/tcg
1764echo "# Automatically generated by configure - do not modify" > $config_host_mak
1765echo "SRC_PATH=$source_path" >> $config_host_mak
1766echo "HOST_CC=$host_cc" >> $config_host_mak
1767
1768# versioned checked in the main config_host.mak above
1769if test -n "$gdb_bin"; then
1770    echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
1771fi
1772if test "$plugins" = "yes" ; then
1773    echo "CONFIG_PLUGIN=y" >> $config_host_mak
1774fi
1775
1776tcg_tests_targets=
1777for target in $target_list; do
1778  arch=${target%%-*}
1779
1780  case $target in
1781    xtensa*-linux-user)
1782      # the toolchain is not complete with headers, only build softmmu tests
1783      continue
1784      ;;
1785    *-softmmu)
1786      test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
1787      qemu="qemu-system-$arch"
1788      ;;
1789    *-linux-user|*-bsd-user)
1790      qemu="qemu-$arch"
1791      ;;
1792  esac
1793
1794  if probe_target_compiler $target || test -n "$container_image"; then
1795      test -n "$container_image" && build_static=y
1796      mkdir -p "tests/tcg/$target"
1797      config_target_mak=tests/tcg/$target/config-target.mak
1798      ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
1799      echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
1800      echo "TARGET_NAME=$arch" >> "$config_target_mak"
1801      echo "TARGET=$target" >> "$config_target_mak"
1802      write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
1803      echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
1804      echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
1805
1806      # will GDB work with these binaries?
1807      if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
1808          echo "HOST_GDB_SUPPORTS_ARCH=y" >> "$config_target_mak"
1809      fi
1810
1811      echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
1812      tcg_tests_targets="$tcg_tests_targets $target"
1813  fi
1814done
1815
1816if test "$tcg" = "enabled"; then
1817    echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
1818fi
1819)
1820
1821if test "$skip_meson" = no; then
1822  cross="config-meson.cross.new"
1823  meson_quote() {
1824    test $# = 0 && return
1825    echo "'$(echo $* | sed "s/ /','/g")'"
1826  }
1827
1828  echo "# Automatically generated by configure - do not modify" > $cross
1829  echo "[properties]" >> $cross
1830
1831  # unroll any custom device configs
1832  for a in $device_archs; do
1833      eval "c=\$devices_${a}"
1834      echo "${a}-softmmu = '$c'" >> $cross
1835  done
1836
1837  echo "[built-in options]" >> $cross
1838  echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
1839  echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
1840  test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
1841  echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
1842  echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
1843  echo "[binaries]" >> $cross
1844  echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
1845  test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
1846  test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
1847  echo "ar = [$(meson_quote $ar)]" >> $cross
1848  echo "nm = [$(meson_quote $nm)]" >> $cross
1849  echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
1850  echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
1851  if has $sdl2_config; then
1852    echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
1853  fi
1854  echo "strip = [$(meson_quote $strip)]" >> $cross
1855  echo "widl = [$(meson_quote $widl)]" >> $cross
1856  echo "windres = [$(meson_quote $windres)]" >> $cross
1857  echo "windmc = [$(meson_quote $windmc)]" >> $cross
1858  if test "$cross_compile" = "yes"; then
1859    cross_arg="--cross-file config-meson.cross"
1860    echo "[host_machine]" >> $cross
1861    echo "system = '$targetos'" >> $cross
1862    case "$cpu" in
1863        i386)
1864            echo "cpu_family = 'x86'" >> $cross
1865            ;;
1866        *)
1867            echo "cpu_family = '$cpu'" >> $cross
1868            ;;
1869    esac
1870    echo "cpu = '$cpu'" >> $cross
1871    if test "$bigendian" = "yes" ; then
1872        echo "endian = 'big'" >> $cross
1873    else
1874        echo "endian = 'little'" >> $cross
1875    fi
1876  else
1877    cross_arg="--native-file config-meson.cross"
1878  fi
1879  mv $cross config-meson.cross
1880
1881  rm -rf meson-private meson-info meson-logs
1882
1883  # Built-in options
1884  test "$download" = "disabled" && meson_option_add "--wrap-mode=nodownload"
1885  test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
1886  test "$default_feature" = no && meson_option_add -Dauto_features=disabled
1887  test "$static" = yes && meson_option_add -Dprefer_static=true
1888  test "$pie" = no && meson_option_add -Db_pie=false
1889  test "$werror" = yes && meson_option_add -Dwerror=true
1890
1891  # QEMU options
1892  test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
1893  test "$docs" != auto && meson_option_add "-Ddocs=$docs"
1894  test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
1895  test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
1896  test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
1897  test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
1898  run_meson() {
1899    NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
1900  }
1901  eval run_meson $meson_options
1902  if test "$?" -ne 0 ; then
1903      error_exit "meson setup failed"
1904  fi
1905  echo "$meson" > build.ninja.stamp
1906else
1907  if test -f meson-private/cmd_line.txt; then
1908    # Adjust old command line options that were removed
1909    # sed -i is not portable
1910    perl -i -ne '
1911      /^sphinx_build/ && next;
1912      print;' meson-private/cmd_line.txt
1913  fi
1914fi
1915
1916# Save the configure command line for later reuse.
1917cat <<EOD >config.status
1918#!/bin/sh
1919# Generated by configure.
1920# Run this file to recreate the current configuration.
1921# Compiler output produced by configure, useful for debugging
1922# configure, is in config.log if it exists.
1923EOD
1924
1925preserve_env() {
1926    envname=$1
1927
1928    eval envval=\$$envname
1929
1930    if test -n "$envval"
1931    then
1932	echo "$envname='$envval'" >> config.status
1933	echo "export $envname" >> config.status
1934    else
1935	echo "unset $envname" >> config.status
1936    fi
1937}
1938
1939# Preserve various env variables that influence what
1940# features/build target configure will detect
1941preserve_env AR
1942preserve_env AS
1943preserve_env CC
1944preserve_env CFLAGS
1945preserve_env CXX
1946preserve_env CXXFLAGS
1947preserve_env LD
1948preserve_env LDFLAGS
1949preserve_env LD_LIBRARY_PATH
1950preserve_env NM
1951preserve_env OBJCFLAGS
1952preserve_env OBJCOPY
1953preserve_env PATH
1954preserve_env PKG_CONFIG
1955preserve_env PKG_CONFIG_LIBDIR
1956preserve_env PKG_CONFIG_PATH
1957preserve_env PYTHON
1958preserve_env QEMU_GA_MANUFACTURER
1959preserve_env QEMU_GA_DISTRO
1960preserve_env QEMU_GA_VERSION
1961preserve_env SDL2_CONFIG
1962preserve_env SMBD
1963preserve_env STRIP
1964preserve_env WIDL
1965preserve_env WINDRES
1966preserve_env WINDMC
1967
1968printf "exec" >>config.status
1969for i in "$0" "$@"; do
1970  test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
1971done
1972echo ' "$@"' >>config.status
1973chmod +x config.status
1974
1975rm -r "$TMPDIR1"
1976