xref: /qemu/configure (revision 371d60df)
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
44build:
45	@echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
46	@$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
47	@if test "$(MAKECMDGOALS)" = "distclean" && \
48	    test -e build/auto-created-by-configure ; \
49	then \
50	    rm -rf build GNUmakefile ; \
51	fi
52%: build
53	@
54.PHONY: build
55GNUmakefile: ;
56
57EOF
58    cd build
59    exec "$source_path/configure" "$@"
60fi
61
62# Temporary directory used for files created while
63# configure runs. Since it is in the build directory
64# we can safely blow away any previous version of it
65# (and we need not jump through hoops to try to delete
66# it when configure exits.)
67TMPDIR1="config-temp"
68rm -rf "${TMPDIR1}"
69if ! mkdir -p "${TMPDIR1}"; then
70    echo "ERROR: failed to create temporary directory"
71    exit 1
72fi
73
74TMPB="qemu-conf"
75TMPC="${TMPDIR1}/${TMPB}.c"
76TMPO="${TMPDIR1}/${TMPB}.o"
77TMPE="${TMPDIR1}/${TMPB}.exe"
78
79rm -f config.log
80
81# Print a helpful header at the top of config.log
82echo "# QEMU configure log $(date)" >> config.log
83printf "# Configured with:" >> config.log
84# repeat the invocation to log and stdout for CI
85invoke=$(printf " '%s'" "$0" "$@")
86test -n "$GITLAB_CI" && echo "configuring with: $invoke"
87{ echo "$invoke"; echo; echo "#"; } >> config.log
88
89quote_sh() {
90    printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
91}
92
93error_exit() {
94    (echo
95    echo "ERROR: $1"
96    while test -n "$2"; do
97        echo "       $2"
98        shift
99    done
100    echo) >&2
101    exit 1
102}
103
104do_compiler() {
105  # Run the compiler, capturing its output to the log. First argument
106  # is compiler binary to execute.
107  compiler="$1"
108  shift
109  if test -n "$BASH_VERSION"; then eval '
110      echo >>config.log "
111funcs: ${FUNCNAME[*]}
112lines: ${BASH_LINENO[*]}"
113  '; fi
114  echo $compiler "$@" >> config.log
115  $compiler "$@" >> config.log 2>&1 || return $?
116}
117
118do_cc() {
119    do_compiler "$cc" $CPU_CFLAGS "$@"
120}
121
122compile_object() {
123  local_cflags="$1"
124  do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -c -o $TMPO $TMPC
125}
126
127compile_prog() {
128  local_cflags="$1"
129  local_ldflags="$2"
130  do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -o $TMPE $TMPC \
131      $LDFLAGS $EXTRA_LDFLAGS $local_ldflags
132}
133
134# symbolically link $1 to $2.  Portable version of "ln -sf".
135symlink() {
136  rm -rf "$2"
137  mkdir -p "$(dirname "$2")"
138  ln -s "$1" "$2"
139}
140
141# check whether a command is available to this shell (may be either an
142# executable or a builtin)
143has() {
144    type "$1" >/dev/null 2>&1
145}
146
147version_ge () {
148    local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
149    local_ver2=$(echo "$2" | tr . ' ')
150    while true; do
151        set x $local_ver1
152        local_first=${2-0}
153        # 'shift 2' if $2 is set, or 'shift' if $2 is not set
154        shift ${2:+2}
155        local_ver1=$*
156        set x $local_ver2
157        # the second argument finished, the first must be greater or equal
158        test $# = 1 && return 0
159        test $local_first -lt $2 && return 1
160        test $local_first -gt $2 && return 0
161        shift ${2:+2}
162        local_ver2=$*
163    done
164}
165
166if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
167then
168  error_exit "main directory cannot contain spaces nor colons"
169fi
170
171# parse CC options first; some compiler tests are used to establish
172# some defaults, based on the host environment
173
174# default parameters
175container_engine="auto"
176cpu=""
177cross_compile="no"
178cross_prefix=""
179host_cc="cc"
180EXTRA_CFLAGS=""
181EXTRA_CXXFLAGS=""
182EXTRA_OBJCFLAGS=""
183EXTRA_LDFLAGS=""
184
185# Default value for a variable defining feature "foo".
186#  * foo="no"  feature will only be used if --enable-foo arg is given
187#  * foo=""    feature will be searched for, and if found, will be used
188#              unless --disable-foo is given
189#  * foo="yes" this value will only be set by --enable-foo flag.
190#              feature will searched for,
191#              if not found, configure exits with error
192#
193# Always add --enable-foo and --disable-foo command line args.
194# Distributions want to ensure that several features are compiled in, and it
195# is impossible without a --enable-foo that exits if a feature is not found.
196default_feature=""
197
198for opt do
199  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
200  case "$opt" in
201  --cross-prefix=*) cross_prefix="$optarg"
202                    cross_compile="yes"
203  ;;
204  --cc=*) CC="$optarg"
205  ;;
206  --cxx=*) CXX="$optarg"
207  ;;
208  --objcc=*) objcc="$optarg"
209  ;;
210  --cpu=*) cpu="$optarg"
211  ;;
212  --extra-cflags=*)
213    EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
214    EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
215    EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
216    ;;
217  --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
218  ;;
219  --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
220  ;;
221  --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
222  ;;
223  --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
224  ;;
225  --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
226                      eval "cross_cc_cflags_${cc_arch}=\$optarg"
227  ;;
228  --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
229                eval "cross_cc_${cc_arch}=\$optarg"
230  ;;
231  --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
232  ;;
233  --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
234                    eval "cross_prefix_${cc_arch}=\$optarg"
235  ;;
236  --without-default-features) default_feature="no"
237  ;;
238  esac
239done
240
241default_cflags='-O2 -g'
242git_submodules_action="update"
243docs="auto"
244EXESUF=""
245system="yes"
246linux_user=""
247bsd_user=""
248plugins="$default_feature"
249subdirs=""
250ninja=""
251python=
252download="enabled"
253skip_meson=no
254use_containers="yes"
255gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
256gdb_arches=""
257
258# Don't accept a target_list environment variable.
259unset target_list
260unset target_list_exclude
261
262# The following Meson options are handled manually (still they
263# are included in the automatically generated help message)
264# because they automatically enable/disable other options
265tcg="auto"
266cfi="false"
267
268# Meson has PIE as a boolean rather than enabled/disabled/auto,
269# and we also need to check for -static-pie before Meson runs
270# which requires knowing whether --static is enabled.
271pie=""
272static="no"
273
274# Preferred compiler:
275#  ${CC} (if set)
276#  ${cross_prefix}gcc (if cross-prefix specified)
277#  system compiler
278if test -z "${CC}${cross_prefix}"; then
279  cc="cc"
280else
281  cc="${CC-${cross_prefix}gcc}"
282fi
283
284if test -z "${CXX}${cross_prefix}"; then
285  cxx="c++"
286else
287  cxx="${CXX-${cross_prefix}g++}"
288fi
289
290# Preferred ObjC compiler:
291# $objcc (if set, i.e. via --objcc option)
292# ${cross_prefix}clang (if cross-prefix specified)
293# clang (if available)
294# $cc
295if test -z "${objcc}${cross_prefix}"; then
296  if has clang; then
297    objcc=clang
298  else
299    objcc="$cc"
300  fi
301else
302  objcc="${objcc-${cross_prefix}clang}"
303fi
304
305ar="${AR-${cross_prefix}ar}"
306as="${AS-${cross_prefix}as}"
307ccas="${CCAS-$cc}"
308dlltool="${DLLTOOL-${cross_prefix}dlltool}"
309objcopy="${OBJCOPY-${cross_prefix}objcopy}"
310ld="${LD-${cross_prefix}ld}"
311ranlib="${RANLIB-${cross_prefix}ranlib}"
312nm="${NM-${cross_prefix}nm}"
313strip="${STRIP-${cross_prefix}strip}"
314widl="${WIDL-${cross_prefix}widl}"
315windres="${WINDRES-${cross_prefix}windres}"
316windmc="${WINDMC-${cross_prefix}windmc}"
317pkg_config="${PKG_CONFIG-${cross_prefix}pkg-config}"
318sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
319
320check_define() {
321cat > $TMPC <<EOF
322#if !defined($1)
323#error $1 not defined
324#endif
325int main(void) { return 0; }
326EOF
327  compile_object
328}
329
330write_c_skeleton() {
331    cat > $TMPC <<EOF
332int main(void) { return 0; }
333EOF
334}
335
336if check_define __linux__ ; then
337  host_os=linux
338elif check_define _WIN32 ; then
339  host_os=windows
340elif check_define __OpenBSD__ ; then
341  host_os=openbsd
342elif check_define __sun__ ; then
343  host_os=sunos
344elif check_define __HAIKU__ ; then
345  host_os=haiku
346elif check_define __FreeBSD__ ; then
347  host_os=freebsd
348elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
349  host_os=gnu/kfreebsd
350elif check_define __DragonFly__ ; then
351  host_os=dragonfly
352elif check_define __NetBSD__; then
353  host_os=netbsd
354elif check_define __APPLE__; then
355  host_os=darwin
356else
357  # This is a fatal error, but don't report it yet, because we
358  # might be going to just print the --help text, or it might
359  # be the result of a missing compiler.
360  host_os=bogus
361fi
362
363if test ! -z "$cpu" ; then
364  # command line argument
365  :
366elif check_define __i386__ ; then
367  cpu="i386"
368elif check_define __x86_64__ ; then
369  if check_define __ILP32__ ; then
370    cpu="x32"
371  else
372    cpu="x86_64"
373  fi
374elif check_define __sparc__ ; then
375  if check_define __arch64__ ; then
376    cpu="sparc64"
377  else
378    cpu="sparc"
379  fi
380elif check_define _ARCH_PPC ; then
381  if check_define _ARCH_PPC64 ; then
382    if check_define _LITTLE_ENDIAN ; then
383      cpu="ppc64le"
384    else
385      cpu="ppc64"
386    fi
387  else
388    cpu="ppc"
389  fi
390elif check_define __mips__ ; then
391  cpu="mips"
392elif check_define __s390__ ; then
393  if check_define __s390x__ ; then
394    cpu="s390x"
395  else
396    cpu="s390"
397  fi
398elif check_define __riscv ; then
399  if check_define _LP64 ; then
400    cpu="riscv64"
401  else
402    cpu="riscv32"
403  fi
404elif check_define __arm__ ; then
405  cpu="arm"
406elif check_define __aarch64__ ; then
407  cpu="aarch64"
408elif check_define __loongarch64 ; then
409  cpu="loongarch64"
410else
411  # Using uname is really broken, but it is just a fallback for architectures
412  # that are going to use TCI anyway
413  cpu=$(uname -m)
414  if test "$host_os" != "bogus"; then
415    echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
416  fi
417fi
418
419# Normalise host CPU name to the values used by Meson cross files and in source
420# directories, and set multilib cflags.  The canonicalization isn't really
421# necessary, because the architectures that we check for should not hit the
422# 'uname -m' case, but better safe than sorry in case --cpu= is used.
423#
424# Note that this case should only have supported host CPUs, not guests.
425# Please keep it sorted and synchronized with meson.build's host_arch.
426host_arch=
427linux_arch=
428case "$cpu" in
429  aarch64)
430    host_arch=aarch64
431    linux_arch=arm64
432    ;;
433
434  armv*b|armv*l|arm)
435    cpu=arm
436    host_arch=arm
437    linux_arch=arm
438    ;;
439
440  i386|i486|i586|i686)
441    cpu="i386"
442    host_arch=i386
443    linux_arch=x86
444    CPU_CFLAGS="-m32"
445    ;;
446
447  loongarch*)
448    cpu=loongarch64
449    host_arch=loongarch64
450    linux_arch=loongarch
451    ;;
452
453  mips64*)
454    cpu=mips64
455    host_arch=mips
456    linux_arch=mips
457    ;;
458  mips*)
459    cpu=mips
460    host_arch=mips
461    linux_arch=mips
462    ;;
463
464  ppc)
465    host_arch=ppc
466    linux_arch=powerpc
467    CPU_CFLAGS="-m32"
468    ;;
469  ppc64)
470    host_arch=ppc64
471    linux_arch=powerpc
472    CPU_CFLAGS="-m64 -mbig-endian"
473    ;;
474  ppc64le)
475    cpu=ppc64
476    host_arch=ppc64
477    linux_arch=powerpc
478    CPU_CFLAGS="-m64 -mlittle-endian"
479    ;;
480
481  riscv32 | riscv64)
482    host_arch=riscv
483    linux_arch=riscv
484    ;;
485
486  s390)
487    linux_arch=s390
488    CPU_CFLAGS="-m31"
489    ;;
490  s390x)
491    host_arch=s390x
492    linux_arch=s390
493    CPU_CFLAGS="-m64"
494    ;;
495
496  sparc|sun4[cdmuv])
497    cpu=sparc
498    CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
499    ;;
500  sparc64)
501    host_arch=sparc64
502    CPU_CFLAGS="-m64 -mcpu=ultrasparc"
503    ;;
504
505  x32)
506    cpu="x86_64"
507    host_arch=x86_64
508    linux_arch=x86
509    CPU_CFLAGS="-mx32"
510    ;;
511  x86_64|amd64)
512    cpu="x86_64"
513    host_arch=x86_64
514    linux_arch=x86
515    # ??? Only extremely old AMD cpus do not have cmpxchg16b.
516    # If we truly care, we should simply detect this case at
517    # runtime and generate the fallback to serial emulation.
518    CPU_CFLAGS="-m64 -mcx16"
519    ;;
520esac
521
522if test -n "$host_arch" && {
523    ! test -d "$source_path/linux-user/include/host/$host_arch" ||
524    ! test -d "$source_path/common-user/host/$host_arch"; }; then
525    error_exit "linux-user/include/host/$host_arch does not exist." \
526       "This is a bug in the configure script, please report it."
527fi
528if test -n "$linux_arch" && ! test -d "$source_path/linux-headers/asm-$linux_arch"; then
529    error_exit "linux-headers/asm-$linux_arch does not exist." \
530       "This is a bug in the configure script, please report it."
531fi
532
533check_py_version() {
534    # We require python >= 3.8.
535    # NB: a True python conditional creates a non-zero return code (Failure)
536    "$1" -c 'import sys; sys.exit(sys.version_info < (3,8))'
537}
538
539first_python=
540if test -z "${PYTHON}"; then
541    # A bare 'python' is traditionally python 2.x, but some distros
542    # have it as python 3.x, so check in both places.
543    for binary in python3 python python3.12 python3.11 \
544                          python3.10 python3.9 python3.8; do
545        if has "$binary"; then
546            python=$(command -v "$binary")
547            if check_py_version "$python"; then
548                # This one is good.
549                first_python=
550                break
551            else
552                first_python=$python
553            fi
554        fi
555    done
556else
557    # Same as above, but only check the environment variable.
558    has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
559    python=$(command -v "$PYTHON")
560    if check_py_version "$python"; then
561        # This one is good.
562        first_python=
563    else
564        first_python=$first_python
565    fi
566fi
567
568# Check for ancillary tools used in testing
569genisoimage=
570for binary in genisoimage mkisofs
571do
572    if has $binary
573    then
574        genisoimage=$(command -v "$binary")
575        break
576    fi
577done
578
579if test "$host_os" = "windows" ; then
580  EXESUF=".exe"
581fi
582
583meson_option_build_array() {
584  printf '['
585  (if test "$host_os" = windows; then
586    IFS=\;
587  else
588    IFS=:
589  fi
590  for e in $1; do
591    printf '"""'
592    # backslash escape any '\' and '"' characters
593    printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
594    printf '""",'
595  done)
596  printf ']\n'
597}
598
599. "$source_path/scripts/meson-buildoptions.sh"
600
601meson_options=
602meson_option_add() {
603  local arg
604  for arg; do
605    meson_options="$meson_options $(quote_sh "$arg")"
606  done
607}
608meson_option_parse() {
609  meson_options="$meson_options $(_meson_option_parse "$@")"
610  if test $? -eq 1; then
611    echo "ERROR: unknown option $1"
612    echo "Try '$0 --help' for more information"
613    exit 1
614  fi
615}
616
617meson_add_machine_file() {
618  if test "$cross_compile" = "yes"; then
619    meson_option_add --cross-file "$1"
620  else
621    meson_option_add --native-file "$1"
622  fi
623}
624
625for opt do
626  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
627  case "$opt" in
628  --help|-h) show_help=yes
629  ;;
630  --version|-V) exec cat "$source_path/VERSION"
631  ;;
632  --cross-prefix=*)
633  ;;
634  --cc=*)
635  ;;
636  --host-cc=*) host_cc="$optarg"
637  ;;
638  --cxx=*)
639  ;;
640  --objcc=*)
641  ;;
642  --make=*)
643  ;;
644  --install=*)
645  ;;
646  --python=*) python="$optarg"
647  ;;
648  --skip-meson) skip_meson=yes
649  ;;
650  --ninja=*) ninja="$optarg"
651  ;;
652  --extra-cflags=*)
653  ;;
654  --extra-cxxflags=*)
655  ;;
656  --extra-objcflags=*)
657  ;;
658  --extra-ldflags=*)
659  ;;
660  --cross-cc-*)
661  ;;
662  --cross-prefix-*)
663  ;;
664  --enable-docs) docs=enabled
665  ;;
666  --disable-docs) docs=disabled
667  ;;
668  --cpu=*)
669  ;;
670  --target-list=*) target_list="$optarg"
671                   if test "$target_list_exclude"; then
672                       error_exit "Can't mix --target-list with --target-list-exclude"
673                   fi
674  ;;
675  --target-list-exclude=*) target_list_exclude="$optarg"
676                   if test "$target_list"; then
677                       error_exit "Can't mix --target-list-exclude with --target-list"
678                   fi
679  ;;
680  --with-default-devices) meson_option_add -Ddefault_devices=true
681  ;;
682  --without-default-devices) meson_option_add -Ddefault_devices=false
683  ;;
684  --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
685  ;;
686  --with-devices-*) device_arch=${opt#--with-devices-};
687                    device_arch=${device_arch%%=*}
688                    cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
689                    if test -f "$cf"; then
690                        device_archs="$device_archs $device_arch"
691                        eval "devices_${device_arch}=\$optarg"
692                    else
693                        error_exit "File $cf does not exist"
694                    fi
695  ;;
696  --without-default-features) # processed above
697  ;;
698  --static) static="yes"
699  ;;
700  --host=*|--build=*|\
701  --disable-dependency-tracking|\
702  --sbindir=*|--sharedstatedir=*|\
703  --oldincludedir=*|--datarootdir=*|--infodir=*|\
704  --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
705    # These switches are silently ignored, for compatibility with
706    # autoconf-generated configure scripts. This allows QEMU's
707    # configure to be used by RPM and similar macros that set
708    # lots of directory switches by default.
709  ;;
710  --enable-debug)
711      # Enable debugging options that aren't excessively noisy
712      meson_option_parse --enable-debug-tcg ""
713      meson_option_parse --enable-debug-graph-lock ""
714      meson_option_parse --enable-debug-mutex ""
715      meson_option_add -Doptimization=0
716      default_cflags='-O0 -g'
717  ;;
718  --disable-tcg) tcg="disabled"
719  ;;
720  --enable-tcg) tcg="enabled"
721  ;;
722  --disable-system) system="no"
723  ;;
724  --enable-system) system="yes"
725  ;;
726  --disable-user)
727      linux_user="no" ;
728      bsd_user="no" ;
729  ;;
730  --enable-user) ;;
731  --disable-linux-user) linux_user="no"
732  ;;
733  --enable-linux-user) linux_user="yes"
734  ;;
735  --disable-bsd-user) bsd_user="no"
736  ;;
737  --enable-bsd-user) bsd_user="yes"
738  ;;
739  --enable-pie) pie="yes"
740  ;;
741  --disable-pie) pie="no"
742  ;;
743  --enable-cfi) cfi=true
744  ;;
745  --disable-cfi) cfi=false
746  ;;
747  --disable-download) download="disabled"; git_submodules_action=validate;
748  ;;
749  --enable-download) download="enabled"; git_submodules_action=update;
750  ;;
751  --enable-plugins) plugins="yes"
752  ;;
753  --disable-plugins) plugins="no"
754  ;;
755  --enable-containers) use_containers="yes"
756  ;;
757  --disable-containers) use_containers="no"
758  ;;
759  --container-engine=*) container_engine="$optarg"
760  ;;
761  --gdb=*) gdb_bin="$optarg"
762  ;;
763  # everything else has the same name in configure and meson
764  --*) meson_option_parse "$opt" "$optarg"
765  ;;
766  # Pass through -Dxxxx options to meson
767  -D*) meson_option_add "$opt"
768  ;;
769  esac
770done
771
772if ! test -e "$source_path/.git"
773then
774    git_submodules_action="validate"
775fi
776
777if ! test -f "$source_path/subprojects/keycodemapdb/README" \
778    && test "$download" = disabled
779then
780    echo
781    echo "ERROR: missing subprojects"
782    echo
783    if test -e "$source_path/.git"; then
784        echo "--disable-download specified but subprojects were not"
785        echo 'checked out.  Please invoke "meson subprojects download"'
786        echo "before configuring QEMU, or remove --disable-download"
787        echo "from the command line."
788    else
789        echo "This is not a GIT checkout but subproject content appears to"
790        echo "be missing. Do not use 'git archive' or GitHub download links"
791        echo "to acquire QEMU source archives. Non-GIT builds are only"
792        echo "supported with source archives linked from:"
793        echo
794        echo "  https://www.qemu.org/download/#source"
795        echo
796        echo "Developers working with GIT can use scripts/archive-source.sh"
797        echo "if they need to create valid source archives."
798    fi
799    echo
800    exit 1
801fi
802
803default_target_list=""
804mak_wilds=""
805
806if [ -n "$host_arch" ] && [ -d "$source_path/common-user/host/$host_arch" ]; then
807    if [ "$linux_user" != no ]; then
808        if [ "$host_os" = linux ]; then
809            linux_user=yes
810        elif [ "$linux_user" = yes ]; then
811            error_exit "linux-user not supported on this architecture"
812        fi
813        if [ "$linux_user" = "yes" ]; then
814            mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
815        fi
816    fi
817    if [ "$bsd_user" != no ]; then
818        if [ "$bsd_user" = "" ]; then
819            test $host_os = freebsd && bsd_user=yes
820        fi
821        if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$host_os" ]; then
822            error_exit "bsd-user not supported on this host OS"
823        fi
824        if [ "$bsd_user" = "yes" ]; then
825            mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
826        fi
827    fi
828else
829    if [ "$linux_user" = yes ] || [ "$bsd_user" = yes ]; then
830        error_exit "user mode emulation not supported on this architecture"
831    fi
832fi
833if [ "$system" = "yes" ]; then
834    mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
835fi
836
837for config in $mak_wilds; do
838    target="$(basename "$config" .mak)"
839    if echo "$target_list_exclude" | grep -vq "$target"; then
840        default_target_list="${default_target_list} $target"
841    fi
842done
843
844if test x"$show_help" = x"yes" ; then
845cat << EOF
846
847Usage: configure [options]
848Options: [defaults in brackets after descriptions]
849
850Standard options:
851  --help                   print this message
852  --target-list=LIST       set target list (default: build all)
853$(echo Available targets: $default_target_list | \
854  fold -s -w 53 | sed -e 's/^/                           /')
855  --target-list-exclude=LIST exclude a set of targets from the default target-list
856
857Advanced options (experts only):
858  -Dmesonoptname=val       passthrough option to meson unmodified
859  --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
860  --cc=CC                  use C compiler CC [$cc]
861  --host-cc=CC             when cross compiling, use C compiler CC for code run
862                           at build time [$host_cc]
863  --cxx=CXX                use C++ compiler CXX [$cxx]
864  --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
865  --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
866  --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
867  --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
868  --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
869  --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
870  --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
871  --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
872  --python=PYTHON          use specified python [$python]
873  --ninja=NINJA            use specified ninja [$ninja]
874  --static                 enable static build [$static]
875  --without-default-features default all --enable-* options to "disabled"
876  --without-default-devices  do not include any device that is not needed to
877                           start the emulator (only use if you are including
878                           desired devices in configs/devices/)
879  --with-devices-ARCH=NAME override default configs/devices
880  --enable-debug           enable common debug build options
881  --cpu=CPU                Build for host CPU [$cpu]
882  --disable-containers     don't use containers for cross-building
883  --container-engine=TYPE  which container engine to use [$container_engine]
884  --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
885EOF
886  meson_options_help
887cat << EOF
888  system          all system emulation targets
889  user            supported user emulation targets
890  linux-user      all linux usermode emulation targets
891  bsd-user        all BSD usermode emulation targets
892  pie             Position Independent Executables
893
894NOTE: The object files are built at the place where configure is launched
895EOF
896exit 0
897fi
898
899# Now that we are sure that the user did not only want to print the --help
900# information, we should double-check that the C compiler really works:
901write_c_skeleton
902if ! compile_object ; then
903    error_exit "C compiler \"$cc\" either does not exist or does not work."
904fi
905
906# Remove old dependency files to make sure that they get properly regenerated
907rm -f ./*/config-devices.mak.d
908
909if test -z "$python"
910then
911    # If first_python is set, there was a binary somewhere even though
912    # it was not suitable.  Use it for the error message.
913    if test -n "$first_python"; then
914        error_exit "Cannot use '$first_python', Python >= 3.8 is required." \
915            "Use --python=/path/to/python to specify a supported Python."
916    else
917        error_exit "Python not found. Use --python=/path/to/python"
918    fi
919fi
920
921if ! check_py_version "$python"; then
922  error_exit "Cannot use '$python', Python >= 3.8 is required." \
923             "Use --python=/path/to/python to specify a supported Python." \
924             "Maybe try:" \
925             "  openSUSE Leap 15.3+: zypper install python39" \
926             "  CentOS 8: dnf install python38"
927fi
928
929# Resolve PATH
930python="$(command -v "$python")"
931
932# Create a Python virtual environment using our configured python.
933# The stdout of this script will be the location of a symlink that
934# points to the configured Python.
935# Entry point scripts for pip, meson, and sphinx are generated if those
936# packages are present.
937
938# Defaults assumed for now:
939# - venv is cleared if it exists already;
940# - venv is allowed to use system packages;
941# - all setup can be performed offline;
942# - missing packages may be fetched from PyPI,
943#   unless --disable-download is passed.
944# - pip is not installed into the venv when possible,
945#   but ensurepip is called as a fallback when necessary.
946
947echo "python determined to be '$python'"
948echo "python version: $($python --version)"
949
950python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
951if test "$?" -ne 0 ; then
952    error_exit "python venv creation failed"
953fi
954
955# Suppress writing compiled files
956python="$python -B"
957mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
958
959# Finish preparing the virtual environment using vendored .whl files
960
961if $python -c 'import sys; sys.exit(sys.version_info >= (3,11))'; then
962    $mkvenv ensure --dir "${source_path}/python/wheels" \
963        'tomli>=1.2.0' || exit 1
964fi
965$mkvenv ensuregroup --dir "${source_path}/python/wheels" \
966     ${source_path}/pythondeps.toml meson || exit 1
967
968# At this point, we expect Meson to be installed and available.
969# We expect mkvenv or pip to have created pyvenv/bin/meson for us.
970# We ignore PATH completely here: we want to use the venv's Meson
971# *exclusively*.
972
973meson="$(cd pyvenv/bin; pwd)/meson"
974
975# Conditionally ensure Sphinx is installed.
976
977mkvenv_online_flag=""
978if test "$download" = "enabled" ; then
979    mkvenv_online_flag=" --online"
980fi
981
982if test "$docs" != "disabled" ; then
983    if ! $mkvenv ensuregroup \
984         $(test "$docs" = "enabled" && echo "$mkvenv_online_flag") \
985         ${source_path}/pythondeps.toml docs;
986    then
987        if test "$docs" = "enabled" ; then
988            exit 1
989        fi
990        echo "Sphinx not found/usable, disabling docs."
991        docs=disabled
992    else
993        docs=enabled
994    fi
995fi
996
997# Probe for ninja
998
999if test -z "$ninja"; then
1000    for c in ninja ninja-build samu; do
1001        if has $c; then
1002            ninja=$(command -v "$c")
1003            break
1004        fi
1005    done
1006    if test -z "$ninja"; then
1007      error_exit "Cannot find Ninja"
1008    fi
1009fi
1010
1011if test "$host_os" = "bogus"; then
1012    # Now that we know that we're not printing the help and that
1013    # the compiler works (so the results of the check_defines we used
1014    # to identify the OS are reliable), if we didn't recognize the
1015    # host OS we should stop now.
1016    error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1017fi
1018
1019# test for any invalid configuration combinations
1020if test "$host_os" = "windows" && ! has "$dlltool"; then
1021  if test "$plugins" = "yes"; then
1022    error_exit "TCG plugins requires dlltool to build on Windows platforms"
1023  fi
1024  plugins="no"
1025fi
1026if test "$tcg" = "disabled" ; then
1027  if test "$plugins" = "yes"; then
1028    error_exit "Can't enable plugins on non-TCG builds"
1029  fi
1030  plugins="no"
1031fi
1032if test "$static" = "yes" ; then
1033  if test "$plugins" = "yes"; then
1034    error_exit "static and plugins are mutually incompatible"
1035  fi
1036  plugins="no"
1037fi
1038if test "$plugins" != "no"; then
1039  plugins=yes
1040  subdirs="$subdirs contrib/plugins"
1041fi
1042
1043cat > $TMPC << EOF
1044
1045#ifdef __linux__
1046#  define THREAD __thread
1047#else
1048#  define THREAD
1049#endif
1050static THREAD int tls_var;
1051int main(void) { return tls_var; }
1052EOF
1053
1054if test "$host_os" = windows || test "$host_os" = haiku; then
1055  if test "$pie" = "yes"; then
1056    error_exit "PIE not available due to missing OS support"
1057  fi
1058  pie=no
1059fi
1060
1061if test "$pie" != "no"; then
1062  if test "$static" = "yes"; then
1063    pie_ldflags=-static-pie
1064  else
1065    pie_ldflags=-pie
1066  fi
1067  if compile_prog "-Werror -fPIE -DPIE" "$pie_ldflags"; then
1068    pie="yes"
1069  elif test "$pie" = "yes"; then
1070    error_exit "-static-pie not available due to missing toolchain support"
1071  else
1072    echo "Disabling PIE due to missing toolchain support"
1073    pie="no"
1074  fi
1075fi
1076
1077##########################################
1078
1079if test -z "${target_list+xxx}" ; then
1080    default_targets=yes
1081    for target in $default_target_list; do
1082        target_list="$target_list $target"
1083    done
1084    target_list="${target_list# }"
1085else
1086    default_targets=no
1087    target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1088    for target in $target_list; do
1089        # Check that we recognised the target name; this allows a more
1090        # friendly error message than if we let it fall through.
1091        case " $default_target_list " in
1092            *" $target "*)
1093                ;;
1094            *)
1095                error_exit "Unknown target name '$target'"
1096                ;;
1097        esac
1098    done
1099fi
1100
1101if test "$tcg" = "auto"; then
1102  if test -z "$target_list"; then
1103    tcg="disabled"
1104  else
1105    tcg="enabled"
1106  fi
1107fi
1108
1109#########################################
1110# gdb test
1111
1112if test -n "$gdb_bin"; then
1113    gdb_version=$($gdb_bin --version | head -n 1)
1114    if version_ge ${gdb_version##* } 9.1; then
1115        gdb_arches=$($python "$source_path/scripts/probe-gdb-support.py" $gdb_bin)
1116    else
1117        gdb_bin=""
1118    fi
1119fi
1120
1121##########################################
1122# big/little endian test
1123cat > $TMPC << EOF
1124#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1125# error LITTLE
1126#endif
1127int main(void) { return 0; }
1128EOF
1129
1130if ! compile_prog ; then
1131  bigendian="no"
1132else
1133  cat > $TMPC << EOF
1134#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1135# error BIG
1136#endif
1137int main(void) { return 0; }
1138EOF
1139
1140  if ! compile_prog ; then
1141    bigendian="yes"
1142  else
1143    echo big/little test failed
1144    exit 1
1145  fi
1146fi
1147
1148##########################################
1149# functions to probe cross compilers
1150
1151container="no"
1152runc=""
1153if test $use_containers = "yes" && (has "docker" || has "podman"); then
1154    case $($python "$source_path"/tests/docker/docker.py --engine "$container_engine" probe) in
1155        *docker) container=docker ;;
1156        podman) container=podman ;;
1157        no) container=no ;;
1158    esac
1159    if test "$container" != "no"; then
1160        docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1161        runc=$container
1162    fi
1163fi
1164
1165# cross compilers defaults, can be overridden with --cross-cc-ARCH
1166: ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1167: ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1168: ${cross_prefix_alpha="alpha-linux-gnu-"}
1169: ${cross_prefix_arm="arm-linux-gnueabihf-"}
1170: ${cross_prefix_armeb="$cross_prefix_arm"}
1171: ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1172: ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1173: ${cross_prefix_hppa="hppa-linux-gnu-"}
1174: ${cross_prefix_i386="i686-linux-gnu-"}
1175: ${cross_prefix_m68k="m68k-linux-gnu-"}
1176: ${cross_prefix_microblaze="microblaze-linux-musl-"}
1177: ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1178: ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1179: ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1180: ${cross_prefix_mips="mips-linux-gnu-"}
1181: ${cross_prefix_ppc="powerpc-linux-gnu-"}
1182: ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1183: ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1184: ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1185: ${cross_prefix_s390x="s390x-linux-gnu-"}
1186: ${cross_prefix_sh4="sh4-linux-gnu-"}
1187: ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1188: ${cross_prefix_sparc="$cross_prefix_sparc64"}
1189: ${cross_prefix_tricore="tricore-"}
1190: ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1191
1192: ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1193: ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1194: ${cross_cc_armeb="$cross_cc_arm"}
1195: ${cross_cc_cflags_armeb="-mbig-endian"}
1196: ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1197: ${cross_cc_cflags_hexagon="-mv73 -O2 -static"}
1198: ${cross_cc_cflags_i386="-m32"}
1199: ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1200: ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1201: ${cross_cc_ppc64le="$cross_cc_ppc64"}
1202: ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1203: ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1204: ${cross_cc_sparc="$cross_cc_sparc64"}
1205: ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1206: ${cross_cc_cflags_x86_64="-m64"}
1207
1208compute_target_variable() {
1209  eval "$2="
1210  if eval test -n "\"\${cross_prefix_$1}\""; then
1211    if eval has "\"\${cross_prefix_$1}\$3\""; then
1212      eval "$2=\"\${cross_prefix_$1}\$3\""
1213    fi
1214  fi
1215}
1216
1217have_target() {
1218  for i; do
1219    case " $target_list " in
1220      *" $i "*) return 0;;
1221      *) ;;
1222    esac
1223  done
1224  return 1
1225}
1226
1227# probe_target_compiler TARGET
1228#
1229# Look for a compiler for the given target, either native or cross.
1230# Set variables target_* if a compiler is found, and container_cross_*
1231# if a Docker-based cross-compiler image is known for the target.
1232# Set got_cross_cc to yes/no depending on whether a non-container-based
1233# compiler was found.
1234#
1235# If TARGET is a user-mode emulation target, also set build_static to
1236# "y" if static linking is possible.
1237#
1238probe_target_compiler() {
1239  # reset all output variables
1240  got_cross_cc=no
1241  container_image=
1242  container_hosts=
1243  container_cross_prefix=
1244  container_cross_cc=
1245  container_cross_ar=
1246  container_cross_as=
1247  container_cross_ld=
1248  container_cross_nm=
1249  container_cross_objcopy=
1250  container_cross_ranlib=
1251  container_cross_strip=
1252
1253  target_arch=${1%%-*}
1254  case $target_arch in
1255    aarch64) container_hosts="x86_64 aarch64" ;;
1256    alpha) container_hosts=x86_64 ;;
1257    arm) container_hosts="x86_64 aarch64" ;;
1258    cris) container_hosts=x86_64 ;;
1259    hexagon) container_hosts=x86_64 ;;
1260    hppa) container_hosts=x86_64 ;;
1261    i386) container_hosts=x86_64 ;;
1262    loongarch64) container_hosts=x86_64 ;;
1263    m68k) container_hosts=x86_64 ;;
1264    microblaze) container_hosts=x86_64 ;;
1265    mips64el) container_hosts=x86_64 ;;
1266    mips64) container_hosts=x86_64 ;;
1267    mipsel) container_hosts=x86_64 ;;
1268    mips) container_hosts=x86_64 ;;
1269    ppc) container_hosts=x86_64 ;;
1270    ppc64|ppc64le) container_hosts=x86_64 ;;
1271    riscv64) container_hosts=x86_64 ;;
1272    s390x) container_hosts=x86_64 ;;
1273    sh4) container_hosts=x86_64 ;;
1274    sparc64) container_hosts=x86_64 ;;
1275    tricore) container_hosts=x86_64 ;;
1276    x86_64) container_hosts="aarch64 ppc64le x86_64" ;;
1277    xtensa*) container_hosts=x86_64 ;;
1278  esac
1279
1280  for host in $container_hosts; do
1281    test "$container" != no || continue
1282    test "$host" = "$cpu" || continue
1283    case $target_arch in
1284      # debian-all-test-cross architectures
1285
1286      hppa|m68k|mips|riscv64|sparc64)
1287        container_image=debian-all-test-cross
1288        ;;
1289      mips64)
1290        container_image=debian-all-test-cross
1291        container_cross_prefix=mips64-linux-gnuabi64-
1292        ;;
1293      ppc|ppc64|ppc64le)
1294        container_image=debian-all-test-cross
1295        container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1296        ;;
1297
1298      # debian-legacy-test-cross architectures (need Debian 11)
1299      # - libc6.1-dev-alpha-cross: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1054412
1300      # - sh4-linux-user: binaries don't run with bookworm compiler
1301
1302      alpha|sh4)
1303        container_image=debian-legacy-test-cross
1304        ;;
1305
1306      # architectures with individual containers
1307
1308      aarch64)
1309        # We don't have any bigendian build tools so we only use this for AArch64
1310        container_image=debian-arm64-cross
1311        ;;
1312      arm)
1313        # We don't have any bigendian build tools so we only use this for ARM
1314        container_image=debian-armhf-cross
1315        container_cross_prefix=arm-linux-gnueabihf-
1316        ;;
1317      cris)
1318        container_image=fedora-cris-cross
1319        ;;
1320      hexagon)
1321        container_cross_prefix=hexagon-unknown-linux-musl-
1322        container_cross_cc=${container_cross_prefix}clang
1323        ;;
1324      i386)
1325        container_image=debian-i686-cross
1326        container_cross_prefix=i686-linux-gnu-
1327        ;;
1328      loongarch64)
1329        container_image=debian-loongarch-cross
1330        container_cross_prefix=loongarch64-unknown-linux-gnu-
1331        ;;
1332      microblaze)
1333        container_cross_prefix=microblaze-linux-musl-
1334        ;;
1335      mips64el)
1336        container_image=debian-mips64el-cross
1337        container_cross_prefix=mips64el-linux-gnuabi64-
1338        ;;
1339      tricore)
1340        container_image=debian-tricore-cross
1341        container_cross_prefix=tricore-
1342        ;;
1343      x86_64)
1344        container_image=debian-amd64-cross
1345        ;;
1346      xtensa*)
1347        container_image=debian-xtensa-cross
1348
1349        # default to the dc232b cpu
1350        container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1351        ;;
1352    esac
1353    # Debian and GNU architecture names usually match
1354    : ${container_image:=debian-$target_arch-cross}
1355    : ${container_cross_prefix:=$target_arch-linux-gnu-}
1356    : ${container_cross_cc:=${container_cross_prefix}gcc}
1357    : ${container_cross_ar:=${container_cross_prefix}ar}
1358    : ${container_cross_as:=${container_cross_prefix}as}
1359    : ${container_cross_ld:=${container_cross_prefix}ld}
1360    : ${container_cross_nm:=${container_cross_prefix}nm}
1361    : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
1362    : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
1363    : ${container_cross_strip:=${container_cross_prefix}strip}
1364  done
1365
1366  try=cross
1367  # For softmmu/roms also look for a bi-endian or multilib-enabled host compiler
1368  if [ "${1%softmmu}" != "$1" ] || test "$target_arch" = "$cpu"; then
1369      case "$target_arch:$cpu" in
1370        aarch64_be:aarch64 | \
1371        armeb:arm | \
1372        i386:x86_64 | \
1373        mips*:mips64 | \
1374        ppc*:ppc64 | \
1375        sparc:sparc64 | \
1376        "$cpu:$cpu")
1377        try='native cross' ;;
1378      esac
1379  fi
1380  eval "target_cflags=\${cross_cc_cflags_$target_arch}"
1381  for thistry in $try; do
1382    case $thistry in
1383    native)
1384      target_cc=$cc
1385      target_ccas=$ccas
1386      target_ar=$ar
1387      target_as=$as
1388      target_ld=$ld
1389      target_nm=$nm
1390      target_objcopy=$objcopy
1391      target_ranlib=$ranlib
1392      target_strip=$strip
1393      ;;
1394    cross)
1395      target_cc=
1396      if eval test -n "\"\${cross_cc_$target_arch}\""; then
1397        if eval has "\"\${cross_cc_$target_arch}\""; then
1398          eval "target_cc=\"\${cross_cc_$target_arch}\""
1399        fi
1400      else
1401        compute_target_variable $target_arch target_cc gcc
1402      fi
1403      target_ccas=$target_cc
1404      compute_target_variable $target_arch target_ar ar
1405      compute_target_variable $target_arch target_as as
1406      compute_target_variable $target_arch target_ld ld
1407      compute_target_variable $target_arch target_nm nm
1408      compute_target_variable $target_arch target_objcopy objcopy
1409      compute_target_variable $target_arch target_ranlib ranlib
1410      compute_target_variable $target_arch target_strip strip
1411      ;;
1412    esac
1413
1414    if test -n "$target_cc"; then
1415      case $target_arch in
1416        i386|x86_64)
1417          if $target_cc --version | grep -qi "clang"; then
1418            continue
1419          fi
1420          ;;
1421      esac
1422    elif test -n "$target_as" && test -n "$target_ld"; then
1423      # Special handling for assembler only targets
1424      case $target in
1425        tricore-softmmu)
1426          build_static=
1427          got_cross_cc=yes
1428          break
1429          ;;
1430        *)
1431          continue
1432          ;;
1433      esac
1434    else
1435      continue
1436    fi
1437
1438    write_c_skeleton
1439    case $1 in
1440      *-softmmu)
1441        if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
1442          do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
1443          got_cross_cc=yes
1444          break
1445        fi
1446        ;;
1447      *)
1448        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
1449          build_static=y
1450          got_cross_cc=yes
1451          break
1452        fi
1453        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
1454          build_static=
1455          got_cross_cc=yes
1456          break
1457        fi
1458        ;;
1459    esac
1460  done
1461  if test $got_cross_cc != yes; then
1462    build_static=
1463    target_cc=
1464    target_ccas=
1465    target_ar=
1466    target_as=
1467    target_ld=
1468    target_nm=
1469    target_objcopy=
1470    target_ranlib=
1471    target_strip=
1472  fi
1473  test -n "$target_cc"
1474}
1475
1476write_target_makefile() {
1477  echo "EXTRA_CFLAGS=$target_cflags"
1478  if test -z "$target_cc" && test -z "$target_as"; then
1479    test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
1480    echo "$1: docker-image-$container_image" >> Makefile.prereqs
1481    if test -n "$container_cross_cc"; then
1482      echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1483      echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1484    fi
1485    echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
1486    echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
1487    echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
1488    echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
1489    echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
1490    echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
1491    echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
1492  else
1493    if test -n "$target_cc"; then
1494      echo "CC=$target_cc"
1495      echo "CCAS=$target_ccas"
1496    fi
1497    if test -n "$target_ar"; then
1498      echo "AR=$target_ar"
1499    fi
1500    if test -n "$target_as"; then
1501      echo "AS=$target_as"
1502    fi
1503    if test -n "$target_ld"; then
1504      echo "LD=$target_ld"
1505    fi
1506    if test -n "$target_nm"; then
1507      echo "NM=$target_nm"
1508    fi
1509    if test -n "$target_objcopy"; then
1510      echo "OBJCOPY=$target_objcopy"
1511    fi
1512    if test -n "$target_ranlib"; then
1513      echo "RANLIB=$target_ranlib"
1514    fi
1515    if test -n "$target_strip"; then
1516      echo "STRIP=$target_strip"
1517    fi
1518  fi
1519}
1520
1521#######################################
1522# cross-compiled firmware targets
1523
1524# Set up build tree symlinks that point back into the source tree
1525# (these can be both files and directories).
1526# Caution: avoid adding files or directories here using wildcards. This
1527# will result in problems later if a new file matching the wildcard is
1528# added to the source tree -- nothing will cause configure to be rerun
1529# so the build tree will be missing the link back to the new file, and
1530# tests might fail. Prefer to keep the relevant files in their own
1531# directory and symlink the directory instead.
1532LINKS="Makefile"
1533LINKS="$LINKS docs/config"
1534LINKS="$LINKS pc-bios/optionrom/Makefile"
1535LINKS="$LINKS pc-bios/s390-ccw/Makefile"
1536LINKS="$LINKS pc-bios/vof/Makefile"
1537LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
1538LINKS="$LINKS tests/avocado tests/data"
1539LINKS="$LINKS tests/qemu-iotests/check tests/qemu-iotests/Makefile"
1540LINKS="$LINKS python"
1541LINKS="$LINKS contrib/plugins/Makefile "
1542for f in $LINKS ; do
1543    if [ -e "$source_path/$f" ]; then
1544        symlink "$source_path/$f" "$f"
1545    fi
1546done
1547
1548# use included Linux headers for KVM architectures
1549if test "$host_os" = "linux" && test -n "$linux_arch"; then
1550  symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
1551fi
1552
1553echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
1554
1555# Mac OS X ships with a broken assembler
1556if have_target i386-softmmu x86_64-softmmu && \
1557        test "$host_os" != "darwin" && test "$host_os" != "sunos" && \
1558        test "$host_os" != "haiku" && \
1559        probe_target_compiler i386-softmmu; then
1560    subdirs="$subdirs pc-bios/optionrom"
1561    config_mak=pc-bios/optionrom/config.mak
1562    echo "# Automatically generated by configure - do not modify" > $config_mak
1563    echo "TOPSRC_DIR=$source_path" >> $config_mak
1564    write_target_makefile >> $config_mak
1565fi
1566
1567if have_target ppc-softmmu ppc64-softmmu && \
1568        probe_target_compiler ppc-softmmu; then
1569    subdirs="$subdirs pc-bios/vof"
1570    config_mak=pc-bios/vof/config.mak
1571    echo "# Automatically generated by configure - do not modify" > $config_mak
1572    echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
1573    write_target_makefile >> $config_mak
1574fi
1575
1576# Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
1577# (which is the lowest architecture level that Clang supports)
1578if have_target s390x-softmmu && probe_target_compiler s390x-softmmu && \
1579    GIT=git "$source_path/scripts/git-submodule.sh" "$git_submodules_action" roms/SLOF >> config.log 2>&1; then
1580  write_c_skeleton
1581  do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
1582  has_z900=$?
1583  if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
1584    if [ $has_z900 != 0 ]; then
1585      echo "WARNING: Your compiler does not support the z900!"
1586      echo "         The s390-ccw bios will only work with guest CPUs >= z10."
1587    fi
1588    subdirs="$subdirs pc-bios/s390-ccw"
1589    config_mak=pc-bios/s390-ccw/config-host.mak
1590    echo "# Automatically generated by configure - do not modify" > $config_mak
1591    echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
1592    echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_mak
1593    write_target_makefile >> $config_mak
1594  fi
1595fi
1596
1597#######################################
1598# generate config-host.mak
1599
1600config_host_mak="config-host.mak"
1601
1602echo "# Automatically generated by configure - do not modify" > $config_host_mak
1603echo >> $config_host_mak
1604
1605echo all: >> $config_host_mak
1606
1607echo "SRC_PATH=$source_path" >> $config_host_mak
1608echo "TARGET_DIRS=$target_list" >> $config_host_mak
1609echo "GDB=$gdb_bin" >> $config_host_mak
1610if test "$container" != no; then
1611    echo "RUNC=$runc" >> $config_host_mak
1612fi
1613echo "SUBDIRS=$subdirs" >> $config_host_mak
1614echo "PYTHON=$python" >> $config_host_mak
1615echo "MKVENV_ENSUREGROUP=$mkvenv ensuregroup $mkvenv_online_flag" >> $config_host_mak
1616echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
1617echo "MESON=$meson" >> $config_host_mak
1618echo "NINJA=$ninja" >> $config_host_mak
1619echo "EXESUF=$EXESUF" >> $config_host_mak
1620if test "$default_targets" = "yes"; then
1621  echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
1622fi
1623
1624# contrib/plugins configuration
1625echo "# Automatically generated by configure - do not modify" > contrib/plugins/$config_host_mak
1626echo "SRC_PATH=$source_path/contrib/plugins" >> contrib/plugins/$config_host_mak
1627echo "PKG_CONFIG=${pkg_config}" >> contrib/plugins/$config_host_mak
1628echo "CC=$cc $CPU_CFLAGS" >> contrib/plugins/$config_host_mak
1629echo "CFLAGS=${CFLAGS-$default_cflags} $EXTRA_CFLAGS" >> contrib/plugins/$config_host_mak
1630if test "$host_os" = windows; then
1631  echo "DLLTOOL=$dlltool" >> contrib/plugins/$config_host_mak
1632fi
1633if test "$host_os" = darwin; then
1634  echo "CONFIG_DARWIN=y" >> contrib/plugins/$config_host_mak
1635fi
1636if test "$host_os" = windows; then
1637  echo "CONFIG_WIN32=y" >> contrib/plugins/$config_host_mak
1638fi
1639
1640# tests/tcg configuration
1641mkdir -p tests/tcg
1642echo "# Automatically generated by configure - do not modify" > tests/tcg/$config_host_mak
1643echo "SRC_PATH=$source_path" >> tests/tcg/$config_host_mak
1644if test "$plugins" = "yes" ; then
1645    echo "CONFIG_PLUGIN=y" >> tests/tcg/$config_host_mak
1646fi
1647
1648tcg_tests_targets=
1649for target in $target_list; do
1650  arch=${target%%-*}
1651
1652  case $target in
1653    xtensa*-linux-user)
1654      # the toolchain is not complete with headers, only build system tests
1655      continue
1656      ;;
1657    *-softmmu)
1658      test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
1659      qemu="qemu-system-$arch"
1660      ;;
1661    *-linux-user|*-bsd-user)
1662      qemu="qemu-$arch"
1663      ;;
1664  esac
1665
1666  if probe_target_compiler $target || test -n "$container_image"; then
1667      test -n "$container_image" && build_static=y
1668      mkdir -p "tests/tcg/$target"
1669      config_target_mak=tests/tcg/$target/config-target.mak
1670      ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
1671      echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
1672      echo "TARGET_NAME=$arch" >> "$config_target_mak"
1673      echo "TARGET=$target" >> "$config_target_mak"
1674      write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
1675      echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
1676      echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
1677
1678      # will GDB work with these binaries?
1679      if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
1680          echo "GDB=$gdb_bin" >> $config_target_mak
1681      fi
1682
1683      echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
1684      tcg_tests_targets="$tcg_tests_targets $target"
1685  fi
1686done
1687
1688if test "$tcg" = "enabled"; then
1689    echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> $config_host_mak
1690fi
1691
1692if test "$skip_meson" = no; then
1693  cross="config-meson.cross.new"
1694  meson_quote() {
1695    test $# = 0 && return
1696    echo "'$(echo $* | sed "s/ /','/g")'"
1697  }
1698
1699  echo "# Automatically generated by configure - do not modify" > $cross
1700  echo "[properties]" >> $cross
1701
1702  # unroll any custom device configs
1703  for a in $device_archs; do
1704      eval "c=\$devices_${a}"
1705      echo "${a}-softmmu = '$c'" >> $cross
1706  done
1707
1708  echo "[built-in options]" >> $cross
1709  echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
1710  echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
1711  test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
1712  echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
1713  echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
1714
1715  # Only enable by default for git builds and on select OSes
1716  echo "# environment defaults, can still be overridden on " >> $cross
1717  echo "# the command line" >> $cross
1718  if test -e "$source_path/.git" && \
1719      { test "$host_os" = linux || test "$host_os" = "windows"; }; then
1720      echo 'werror = true' >> $cross
1721  fi
1722  echo "[project options]" >> $cross
1723  if test "$SMBD" != ''; then
1724    echo "smbd = $(meson_quote "$SMBD")" >> $cross
1725  fi
1726  if test "${QEMU_GA_MANUFACTURER}" != ''; then
1727    echo "qemu_ga_manufacturer = $(meson_quote "${QEMU_GA_MANUFACTURER}")" >> $cross
1728  fi
1729  if test "${QEMU_GA_DISTRO}" != ''; then
1730    echo "qemu_ga_distro = $(meson_quote "${QEMU_GA_DISTRO}")" >> $cross
1731  fi
1732  if test "${QEMU_GA_VERSION}" != ''; then
1733    echo "qemu_ga_version = $(meson_quote "${QEMU_GA_VERSION}")" >> $cross
1734  fi
1735
1736  echo >> $cross
1737  echo "[binaries]" >> $cross
1738  echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
1739  test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
1740  test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
1741  echo "ar = [$(meson_quote $ar)]" >> $cross
1742  echo "dlltool = [$(meson_quote $dlltool)]" >> $cross
1743  echo "nm = [$(meson_quote $nm)]" >> $cross
1744  echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
1745  echo "pkg-config = [$(meson_quote $pkg_config)]" >> $cross
1746  echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
1747  if has $sdl2_config; then
1748    echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
1749  fi
1750  echo "strip = [$(meson_quote $strip)]" >> $cross
1751  echo "widl = [$(meson_quote $widl)]" >> $cross
1752  echo "windres = [$(meson_quote $windres)]" >> $cross
1753  echo "windmc = [$(meson_quote $windmc)]" >> $cross
1754  if test "$cross_compile" = "yes"; then
1755    echo "[host_machine]" >> $cross
1756    echo "system = '$host_os'" >> $cross
1757    case "$cpu" in
1758        i386)
1759            echo "cpu_family = 'x86'" >> $cross
1760            ;;
1761        *)
1762            echo "cpu_family = '$cpu'" >> $cross
1763            ;;
1764    esac
1765    echo "cpu = '$cpu'" >> $cross
1766    if test "$bigendian" = "yes" ; then
1767        echo "endian = 'big'" >> $cross
1768    else
1769        echo "endian = 'little'" >> $cross
1770    fi
1771
1772    native="config-meson.native.new"
1773    echo "# Automatically generated by configure - do not modify" > $native
1774    echo "[binaries]" >> $native
1775    echo "c = [$(meson_quote $host_cc)]" >> $native
1776    mv $native config-meson.native
1777    meson_option_add --native-file
1778    meson_option_add config-meson.native
1779  fi
1780  mv $cross config-meson.cross
1781  meson_add_machine_file config-meson.cross
1782  if test -f "$source_path/configs/meson/$host_os.txt"; then
1783    meson_add_machine_file $source_path/configs/meson/$host_os.txt
1784  fi
1785
1786  rm -rf meson-private meson-info meson-logs
1787
1788  test "$download" = "disabled" && meson_option_add "--wrap-mode=nodownload"
1789  test "$default_feature" = no && meson_option_add -Dauto_features=disabled
1790  test "$static" = yes && meson_option_add -Dprefer_static=true
1791  test "$pie" = no && meson_option_add -Db_pie=false
1792
1793  # QEMU options
1794  test "$cfi" != false && meson_option_add "-Dcfi=$cfi" "-Db_lto=$cfi"
1795  test "$docs" != auto && meson_option_add "-Ddocs=$docs"
1796  test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
1797  test "$plugins" = yes && meson_option_add "-Dplugins=true"
1798  test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
1799  run_meson() {
1800    NINJA=$ninja $meson setup "$@" "$PWD" "$source_path"
1801  }
1802  eval run_meson $meson_options
1803  if test "$?" -ne 0 ; then
1804      error_exit "meson setup failed"
1805  fi
1806  echo "$meson" > build.ninja.stamp
1807else
1808  if test -f meson-private/cmd_line.txt; then
1809    # Adjust old command line options that were removed
1810    # sed -i is not portable
1811    perl -i -ne '
1812      /^sphinx_build/ && next;
1813      print;' meson-private/cmd_line.txt
1814  fi
1815fi
1816
1817# Save the configure command line for later reuse.
1818cat <<EOD >config.status
1819#!/bin/sh
1820# Generated by configure.
1821# Run this file to recreate the current configuration.
1822# Compiler output produced by configure, useful for debugging
1823# configure, is in config.log if it exists.
1824EOD
1825
1826preserve_env() {
1827    envname=$1
1828
1829    eval envval=\$$envname
1830
1831    if test -n "$envval"
1832    then
1833	echo "$envname='$envval'" >> config.status
1834	echo "export $envname" >> config.status
1835    else
1836	echo "unset $envname" >> config.status
1837    fi
1838}
1839
1840# Preserve various env variables that influence what
1841# features/build target configure will detect
1842preserve_env AR
1843preserve_env AS
1844preserve_env CC
1845preserve_env CFLAGS
1846preserve_env CXX
1847preserve_env CXXFLAGS
1848preserve_env DLLTOOL
1849preserve_env LD
1850preserve_env LDFLAGS
1851preserve_env LD_LIBRARY_PATH
1852preserve_env NM
1853preserve_env OBJCFLAGS
1854preserve_env OBJCOPY
1855preserve_env PATH
1856preserve_env PKG_CONFIG
1857preserve_env PKG_CONFIG_LIBDIR
1858preserve_env PKG_CONFIG_PATH
1859preserve_env PYTHON
1860preserve_env QEMU_GA_MANUFACTURER
1861preserve_env QEMU_GA_DISTRO
1862preserve_env QEMU_GA_VERSION
1863preserve_env SDL2_CONFIG
1864preserve_env SMBD
1865preserve_env STRIP
1866preserve_env WIDL
1867preserve_env WINDRES
1868preserve_env WINDMC
1869
1870printf "exec" >>config.status
1871for i in "$0" "$@"; do
1872  test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
1873done
1874echo ' "$@"' >>config.status
1875chmod +x config.status
1876
1877rm -r "$TMPDIR1"
1878