xref: /qemu/configure (revision 940bb5fa) 
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
97error_exit() {
98    (echo
99    echo "ERROR: $1"
100    while test -n "$2"; do
101        echo "       $2"
102        shift
103    done
104    echo) >&2
105    exit 1
106}
107
108do_compiler() {
109  # Run the compiler, capturing its output to the log. First argument
110  # is compiler binary to execute.
111  compiler="$1"
112  shift
113  if test -n "$BASH_VERSION"; then eval '
114      echo >>config.log "
115funcs: ${FUNCNAME[*]}
116lines: ${BASH_LINENO[*]}"
117  '; fi
118  echo $compiler "$@" >> config.log
119  $compiler "$@" >> config.log 2>&1 || return $?
120}
121
122do_cc() {
123    do_compiler "$cc" $CPU_CFLAGS "$@"
124}
125
126compile_object() {
127  local_cflags="$1"
128  do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -c -o $TMPO $TMPC
129}
130
131compile_prog() {
132  local_cflags="$1"
133  local_ldflags="$2"
134  do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -o $TMPE $TMPC \
135      $LDFLAGS $EXTRA_LDFLAGS $local_ldflags
136}
137
138# symbolically link $1 to $2.  Portable version of "ln -sf".
139symlink() {
140  rm -rf "$2"
141  mkdir -p "$(dirname "$2")"
142  ln -s "$1" "$2"
143}
144
145# check whether a command is available to this shell (may be either an
146# executable or a builtin)
147has() {
148    type "$1" >/dev/null 2>&1
149}
150
151version_ge () {
152    local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
153    local_ver2=$(echo "$2" | tr . ' ')
154    while true; do
155        set x $local_ver1
156        local_first=${2-0}
157        # 'shift 2' if $2 is set, or 'shift' if $2 is not set
158        shift ${2:+2}
159        local_ver1=$*
160        set x $local_ver2
161        # the second argument finished, the first must be greater or equal
162        test $# = 1 && return 0
163        test $local_first -lt $2 && return 1
164        test $local_first -gt $2 && return 0
165        shift ${2:+2}
166        local_ver2=$*
167    done
168}
169
170if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
171then
172  error_exit "main directory cannot contain spaces nor colons"
173fi
174
175# parse CC options first; some compiler tests are used to establish
176# some defaults, based on the host environment
177
178# default parameters
179container_engine="auto"
180cpu=""
181cross_compile="no"
182cross_prefix=""
183host_cc="cc"
184EXTRA_CFLAGS=""
185EXTRA_CXXFLAGS=""
186EXTRA_OBJCFLAGS=""
187EXTRA_LDFLAGS=""
188
189# Default value for a variable defining feature "foo".
190#  * foo="no"  feature will only be used if --enable-foo arg is given
191#  * foo=""    feature will be searched for, and if found, will be used
192#              unless --disable-foo is given
193#  * foo="yes" this value will only be set by --enable-foo flag.
194#              feature will searched for,
195#              if not found, configure exits with error
196#
197# Always add --enable-foo and --disable-foo command line args.
198# Distributions want to ensure that several features are compiled in, and it
199# is impossible without a --enable-foo that exits if a feature is not found.
200default_feature=""
201
202for opt do
203  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
204  case "$opt" in
205  --cross-prefix=*) cross_prefix="$optarg"
206                    cross_compile="yes"
207  ;;
208  --cc=*) CC="$optarg"
209  ;;
210  --cxx=*) CXX="$optarg"
211  ;;
212  --objcc=*) objcc="$optarg"
213  ;;
214  --cpu=*) cpu="$optarg"
215  ;;
216  --extra-cflags=*)
217    EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
218    EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
219    EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
220    ;;
221  --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
222  ;;
223  --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
224  ;;
225  --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
226  ;;
227  --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
228  ;;
229  --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
230                      eval "cross_cc_cflags_${cc_arch}=\$optarg"
231  ;;
232  --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
233                eval "cross_cc_${cc_arch}=\$optarg"
234  ;;
235  --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
236  ;;
237  --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
238                    eval "cross_prefix_${cc_arch}=\$optarg"
239  ;;
240  --without-default-features) default_feature="no"
241  ;;
242  esac
243done
244
245default_cflags='-O2 -g'
246git_submodules_action="update"
247docs="auto"
248EXESUF=""
249system="yes"
250linux_user=""
251bsd_user=""
252plugins="$default_feature"
253subdirs=""
254ninja=""
255python=
256download="enabled"
257skip_meson=no
258use_containers="yes"
259gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
260gdb_arches=""
261
262# Don't accept a target_list environment variable.
263unset target_list
264unset target_list_exclude
265
266# The following Meson options are handled manually (still they
267# are included in the automatically generated help message)
268# because they automatically enable/disable other options
269tcg="auto"
270cfi="false"
271
272# Meson has PIE as a boolean rather than enabled/disabled/auto,
273# and we also need to check for -static-pie before Meson runs
274# which requires knowing whether --static is enabled.
275pie=""
276static="no"
277
278# Preferred compiler:
279#  ${CC} (if set)
280#  ${cross_prefix}gcc (if cross-prefix specified)
281#  system compiler
282if test -z "${CC}${cross_prefix}"; then
283  cc="cc"
284else
285  cc="${CC-${cross_prefix}gcc}"
286fi
287
288if test -z "${CXX}${cross_prefix}"; then
289  cxx="c++"
290else
291  cxx="${CXX-${cross_prefix}g++}"
292fi
293
294# Preferred ObjC compiler:
295# $objcc (if set, i.e. via --objcc option)
296# ${cross_prefix}clang (if cross-prefix specified)
297# clang (if available)
298# $cc
299if test -z "${objcc}${cross_prefix}"; then
300  if has clang; then
301    objcc=clang
302  else
303    objcc="$cc"
304  fi
305else
306  objcc="${objcc-${cross_prefix}clang}"
307fi
308
309ar="${AR-${cross_prefix}ar}"
310as="${AS-${cross_prefix}as}"
311ccas="${CCAS-$cc}"
312objcopy="${OBJCOPY-${cross_prefix}objcopy}"
313ld="${LD-${cross_prefix}ld}"
314ranlib="${RANLIB-${cross_prefix}ranlib}"
315nm="${NM-${cross_prefix}nm}"
316strip="${STRIP-${cross_prefix}strip}"
317widl="${WIDL-${cross_prefix}widl}"
318windres="${WINDRES-${cross_prefix}windres}"
319windmc="${WINDMC-${cross_prefix}windmc}"
320pkg_config="${PKG_CONFIG-${cross_prefix}pkg-config}"
321sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
322
323check_define() {
324cat > $TMPC <<EOF
325#if !defined($1)
326#error $1 not defined
327#endif
328int main(void) { return 0; }
329EOF
330  compile_object
331}
332
333write_c_skeleton() {
334    cat > $TMPC <<EOF
335int main(void) { return 0; }
336EOF
337}
338
339if check_define __linux__ ; then
340  targetos=linux
341elif check_define _WIN32 ; then
342  targetos=windows
343elif check_define __OpenBSD__ ; then
344  targetos=openbsd
345elif check_define __sun__ ; then
346  targetos=sunos
347elif check_define __HAIKU__ ; then
348  targetos=haiku
349elif check_define __FreeBSD__ ; then
350  targetos=freebsd
351elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
352  targetos=gnu/kfreebsd
353elif check_define __DragonFly__ ; then
354  targetos=dragonfly
355elif check_define __NetBSD__; then
356  targetos=netbsd
357elif check_define __APPLE__; then
358  targetos=darwin
359else
360  # This is a fatal error, but don't report it yet, because we
361  # might be going to just print the --help text, or it might
362  # be the result of a missing compiler.
363  targetos=bogus
364fi
365
366if test ! -z "$cpu" ; then
367  # command line argument
368  :
369elif check_define __i386__ ; then
370  cpu="i386"
371elif check_define __x86_64__ ; then
372  if check_define __ILP32__ ; then
373    cpu="x32"
374  else
375    cpu="x86_64"
376  fi
377elif check_define __sparc__ ; then
378  if check_define __arch64__ ; then
379    cpu="sparc64"
380  else
381    cpu="sparc"
382  fi
383elif check_define _ARCH_PPC ; then
384  if check_define _ARCH_PPC64 ; then
385    if check_define _LITTLE_ENDIAN ; then
386      cpu="ppc64le"
387    else
388      cpu="ppc64"
389    fi
390  else
391    cpu="ppc"
392  fi
393elif check_define __mips__ ; then
394  cpu="mips"
395elif check_define __s390__ ; then
396  if check_define __s390x__ ; then
397    cpu="s390x"
398  else
399    cpu="s390"
400  fi
401elif check_define __riscv ; then
402  if check_define _LP64 ; then
403    cpu="riscv64"
404  else
405    cpu="riscv32"
406  fi
407elif check_define __arm__ ; then
408  cpu="arm"
409elif check_define __aarch64__ ; then
410  cpu="aarch64"
411elif check_define __loongarch64 ; then
412  cpu="loongarch64"
413else
414  # Using uname is really broken, but it is just a fallback for architectures
415  # that are going to use TCI anyway
416  cpu=$(uname -m)
417  echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
418fi
419
420# Normalise host CPU name to the values used by Meson cross files and in source
421# directories, and set multilib cflags.  The canonicalization isn't really
422# necessary, because the architectures that we check for should not hit the
423# 'uname -m' case, but better safe than sorry in case --cpu= is used.
424#
425# Note that this case should only have supported host CPUs, not guests.
426# Please keep it sorted and synchronized with meson.build's host_arch.
427host_arch=
428linux_arch=
429case "$cpu" in
430  aarch64)
431    host_arch=aarch64
432    linux_arch=arm64
433    ;;
434
435  armv*b|armv*l|arm)
436    cpu=arm
437    host_arch=arm
438    linux_arch=arm
439    ;;
440
441  i386|i486|i586|i686)
442    cpu="i386"
443    host_arch=i386
444    linux_arch=x86
445    CPU_CFLAGS="-m32"
446    ;;
447
448  loongarch*)
449    cpu=loongarch64
450    host_arch=loongarch64
451    ;;
452
453  mips64*)
454    cpu=mips64
455    host_arch=mips
456    linux_arch=mips
457    ;;
458  mips*)
459    cpu=mips
460    host_arch=mips
461    linux_arch=mips
462    ;;
463
464  ppc)
465    host_arch=ppc
466    linux_arch=powerpc
467    CPU_CFLAGS="-m32"
468    ;;
469  ppc64)
470    host_arch=ppc64
471    linux_arch=powerpc
472    CPU_CFLAGS="-m64 -mbig-endian"
473    ;;
474  ppc64le)
475    cpu=ppc64
476    host_arch=ppc64
477    linux_arch=powerpc
478    CPU_CFLAGS="-m64 -mlittle-endian"
479    ;;
480
481  riscv32 | riscv64)
482    host_arch=riscv
483    linux_arch=riscv
484    ;;
485
486  s390)
487    linux_arch=s390
488    CPU_CFLAGS="-m31"
489    ;;
490  s390x)
491    host_arch=s390x
492    linux_arch=s390
493    CPU_CFLAGS="-m64"
494    ;;
495
496  sparc|sun4[cdmuv])
497    cpu=sparc
498    CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
499    ;;
500  sparc64)
501    host_arch=sparc64
502    CPU_CFLAGS="-m64 -mcpu=ultrasparc"
503    ;;
504
505  x32)
506    cpu="x86_64"
507    host_arch=x86_64
508    linux_arch=x86
509    CPU_CFLAGS="-mx32"
510    ;;
511  x86_64|amd64)
512    cpu="x86_64"
513    host_arch=x86_64
514    linux_arch=x86
515    # ??? Only extremely old AMD cpus do not have cmpxchg16b.
516    # If we truly care, we should simply detect this case at
517    # runtime and generate the fallback to serial emulation.
518    CPU_CFLAGS="-m64 -mcx16"
519    ;;
520esac
521
522if test -n "$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 "$binary")
575        break
576    fi
577done
578
579if test "$targetos" = "windows" ; then
580  EXESUF=".exe"
581fi
582
583meson_option_build_array() {
584  printf '['
585  (if test "$targetos" = 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" "$optarg"
765  ;;
766  # Pass through -Dxxxx options to meson
767  -D*) meson_options="$meson_options $opt"
768  ;;
769  esac
770done
771
772if ! test -e "$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 [ "$linux_user" != no ]; then
808        if [ "$targetos" = 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 $targetos = freebsd && bsd_user=yes
820        fi
821        if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; 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# Remove old dependency files to make sure that they get properly regenerated
900rm -f ./*/config-devices.mak.d
901
902if test -z "$python"
903then
904    # If first_python is set, there was a binary somewhere even though
905    # it was not suitable.  Use it for the error message.
906    if test -n "$first_python"; then
907        error_exit "Cannot use '$first_python', Python >= 3.8 is required." \
908            "Use --python=/path/to/python to specify a supported Python."
909    else
910        error_exit "Python not found. Use --python=/path/to/python"
911    fi
912fi
913
914if ! check_py_version "$python"; then
915  error_exit "Cannot use '$python', Python >= 3.8 is required." \
916             "Use --python=/path/to/python to specify a supported Python." \
917             "Maybe try:" \
918             "  openSUSE Leap 15.3+: zypper install python39" \
919             "  CentOS 8: dnf install python38"
920fi
921
922# Resolve PATH
923python="$(command -v "$python")"
924
925# Create a Python virtual environment using our configured python.
926# The stdout of this script will be the location of a symlink that
927# points to the configured Python.
928# Entry point scripts for pip, meson, and sphinx are generated if those
929# packages are present.
930
931# Defaults assumed for now:
932# - venv is cleared if it exists already;
933# - venv is allowed to use system packages;
934# - all setup can be performed offline;
935# - missing packages may be fetched from PyPI,
936#   unless --disable-download is passed.
937# - pip is not installed into the venv when possible,
938#   but ensurepip is called as a fallback when necessary.
939
940echo "python determined to be '$python'"
941echo "python version: $($python --version)"
942
943python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
944if test "$?" -ne 0 ; then
945    error_exit "python venv creation failed"
946fi
947
948# Suppress writing compiled files
949python="$python -B"
950mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
951
952# Finish preparing the virtual environment using vendored .whl files
953
954if $python -c 'import sys; sys.exit(sys.version_info >= (3,11))'; then
955    $mkvenv ensure --dir "${source_path}/python/wheels" \
956        'tomli>=1.2.0' || exit 1
957fi
958$mkvenv ensuregroup --dir "${source_path}/python/wheels" \
959     ${source_path}/pythondeps.toml meson || exit 1
960
961# At this point, we expect Meson to be installed and available.
962# We expect mkvenv or pip to have created pyvenv/bin/meson for us.
963# We ignore PATH completely here: we want to use the venv's Meson
964# *exclusively*.
965
966meson="$(cd pyvenv/bin; pwd)/meson"
967
968# Conditionally ensure Sphinx is installed.
969
970mkvenv_flags=""
971if test "$download" = "enabled" -a "$docs" = "enabled" ; then
972    mkvenv_flags="--online"
973fi
974
975if test "$docs" != "disabled" ; then
976    if ! $mkvenv ensuregroup \
977         $mkvenv_flags \
978         ${source_path}/pythondeps.toml docs;
979    then
980        if test "$docs" = "enabled" ; then
981            exit 1
982        fi
983        echo "Sphinx not found/usable, disabling docs."
984        docs=disabled
985    else
986        docs=enabled
987    fi
988fi
989
990# Probe for ninja
991
992if test -z "$ninja"; then
993    for c in ninja ninja-build samu; do
994        if has $c; then
995            ninja=$(command -v "$c")
996            break
997        fi
998    done
999    if test -z "$ninja"; then
1000      error_exit "Cannot find Ninja"
1001    fi
1002fi
1003
1004if test "$targetos" = "bogus"; then
1005    # Now that we know that we're not printing the help and that
1006    # the compiler works (so the results of the check_defines we used
1007    # to identify the OS are reliable), if we didn't recognize the
1008    # host OS we should stop now.
1009    error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1010fi
1011
1012# test for any invalid configuration combinations
1013if test "$targetos" = "windows"; then
1014  if test "$plugins" = "yes"; then
1015    error_exit "TCG plugins not currently supported on Windows platforms"
1016  fi
1017  plugins="no"
1018fi
1019if test "$tcg" = "disabled" ; then
1020  if test "$plugins" = "yes"; then
1021    error_exit "Can't enable plugins on non-TCG builds"
1022  fi
1023  plugins="no"
1024fi
1025if test "$static" = "yes" ; then
1026  if test "$plugins" = "yes"; then
1027    error_exit "static and plugins are mutually incompatible"
1028  fi
1029  plugins="no"
1030fi
1031if test "$plugins" != "no"; then
1032  plugins=yes
1033  subdirs="$subdirs contrib/plugins"
1034fi
1035
1036cat > $TMPC << EOF
1037
1038#ifdef __linux__
1039#  define THREAD __thread
1040#else
1041#  define THREAD
1042#endif
1043static THREAD int tls_var;
1044int main(void) { return tls_var; }
1045EOF
1046
1047if test "$targetos" = windows || test "$targetos" = haiku; then
1048  if test "$pie" = "yes"; then
1049    error_exit "PIE not available due to missing OS support"
1050  fi
1051  pie=no
1052fi
1053
1054if test "$pie" != "no"; then
1055  if test "$static" = "yes"; then
1056    pie_ldflags=-static-pie
1057  else
1058    pie_ldflags=-pie
1059  fi
1060  if compile_prog "-Werror -fPIE -DPIE" "$pie_ldflags"; then
1061    pie="yes"
1062  elif test "$pie" = "yes"; then
1063    error_exit "-static-pie not available due to missing toolchain support"
1064  else
1065    echo "Disabling PIE due to missing toolchain support"
1066    pie="no"
1067  fi
1068fi
1069
1070##########################################
1071
1072if test -z "${target_list+xxx}" ; then
1073    default_targets=yes
1074    for target in $default_target_list; do
1075        target_list="$target_list $target"
1076    done
1077    target_list="${target_list# }"
1078else
1079    default_targets=no
1080    target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1081    for target in $target_list; do
1082        # Check that we recognised the target name; this allows a more
1083        # friendly error message than if we let it fall through.
1084        case " $default_target_list " in
1085            *" $target "*)
1086                ;;
1087            *)
1088                error_exit "Unknown target name '$target'"
1089                ;;
1090        esac
1091    done
1092fi
1093
1094if test "$tcg" = "auto"; then
1095  if test -z "$target_list"; then
1096    tcg="disabled"
1097  else
1098    tcg="enabled"
1099  fi
1100fi
1101
1102#########################################
1103# gdb test
1104
1105if test -n "$gdb_bin"; then
1106    gdb_version=$($gdb_bin --version | head -n 1)
1107    if version_ge ${gdb_version##* } 9.1; then
1108        gdb_arches=$($python "$source_path/scripts/probe-gdb-support.py" $gdb_bin)
1109    else
1110        gdb_bin=""
1111    fi
1112fi
1113
1114##########################################
1115# big/little endian test
1116cat > $TMPC << EOF
1117#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1118# error LITTLE
1119#endif
1120int main(void) { return 0; }
1121EOF
1122
1123if ! compile_prog ; then
1124  bigendian="no"
1125else
1126  cat > $TMPC << EOF
1127#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1128# error BIG
1129#endif
1130int main(void) { return 0; }
1131EOF
1132
1133  if ! compile_prog ; then
1134    bigendian="yes"
1135  else
1136    echo big/little test failed
1137    exit 1
1138  fi
1139fi
1140
1141##########################################
1142# functions to probe cross compilers
1143
1144container="no"
1145runc=""
1146if test $use_containers = "yes" && (has "docker" || has "podman"); then
1147    case $($python "$source_path"/tests/docker/docker.py --engine "$container_engine" probe) in
1148        *docker) container=docker ;;
1149        podman) container=podman ;;
1150        no) container=no ;;
1151    esac
1152    if test "$container" != "no"; then
1153        docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1154        runc=$container
1155    fi
1156fi
1157
1158# cross compilers defaults, can be overridden with --cross-cc-ARCH
1159: ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1160: ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1161: ${cross_prefix_alpha="alpha-linux-gnu-"}
1162: ${cross_prefix_arm="arm-linux-gnueabihf-"}
1163: ${cross_prefix_armeb="$cross_prefix_arm"}
1164: ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1165: ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1166: ${cross_prefix_hppa="hppa-linux-gnu-"}
1167: ${cross_prefix_i386="i686-linux-gnu-"}
1168: ${cross_prefix_m68k="m68k-linux-gnu-"}
1169: ${cross_prefix_microblaze="microblaze-linux-musl-"}
1170: ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1171: ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1172: ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1173: ${cross_prefix_mips="mips-linux-gnu-"}
1174: ${cross_prefix_nios2="nios2-linux-gnu-"}
1175: ${cross_prefix_ppc="powerpc-linux-gnu-"}
1176: ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1177: ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1178: ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1179: ${cross_prefix_s390x="s390x-linux-gnu-"}
1180: ${cross_prefix_sh4="sh4-linux-gnu-"}
1181: ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1182: ${cross_prefix_sparc="$cross_prefix_sparc64"}
1183: ${cross_prefix_tricore="tricore-"}
1184: ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1185
1186: ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1187: ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1188: ${cross_cc_armeb="$cross_cc_arm"}
1189: ${cross_cc_cflags_armeb="-mbig-endian"}
1190: ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1191: ${cross_cc_cflags_hexagon="-mv73 -O2 -static"}
1192: ${cross_cc_cflags_i386="-m32"}
1193: ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1194: ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1195: ${cross_cc_ppc64le="$cross_cc_ppc64"}
1196: ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1197: ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1198: ${cross_cc_sparc="$cross_cc_sparc64"}
1199: ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1200: ${cross_cc_cflags_x86_64="-m64"}
1201
1202compute_target_variable() {
1203  eval "$2="
1204  if eval test -n "\"\${cross_prefix_$1}\""; then
1205    if eval has "\"\${cross_prefix_$1}\$3\""; then
1206      eval "$2=\"\${cross_prefix_$1}\$3\""
1207    fi
1208  fi
1209}
1210
1211have_target() {
1212  for i; do
1213    case " $target_list " in
1214      *" $i "*) return 0;;
1215      *) ;;
1216    esac
1217  done
1218  return 1
1219}
1220
1221# probe_target_compiler TARGET
1222#
1223# Look for a compiler for the given target, either native or cross.
1224# Set variables target_* if a compiler is found, and container_cross_*
1225# if a Docker-based cross-compiler image is known for the target.
1226# Set got_cross_cc to yes/no depending on whether a non-container-based
1227# compiler was found.
1228#
1229# If TARGET is a user-mode emulation target, also set build_static to
1230# "y" if static linking is possible.
1231#
1232probe_target_compiler() {
1233  # reset all output variables
1234  got_cross_cc=no
1235  container_image=
1236  container_hosts=
1237  container_cross_cc=
1238  container_cross_ar=
1239  container_cross_as=
1240  container_cross_ld=
1241  container_cross_nm=
1242  container_cross_objcopy=
1243  container_cross_ranlib=
1244  container_cross_strip=
1245
1246  target_arch=${1%%-*}
1247  case $target_arch in
1248    aarch64) container_hosts="x86_64 aarch64" ;;
1249    alpha) container_hosts=x86_64 ;;
1250    arm) container_hosts="x86_64 aarch64" ;;
1251    cris) container_hosts=x86_64 ;;
1252    hexagon) container_hosts=x86_64 ;;
1253    hppa) container_hosts=x86_64 ;;
1254    i386) container_hosts=x86_64 ;;
1255    loongarch64) container_hosts=x86_64 ;;
1256    m68k) container_hosts=x86_64 ;;
1257    microblaze) container_hosts=x86_64 ;;
1258    mips64el) container_hosts=x86_64 ;;
1259    mips64) container_hosts=x86_64 ;;
1260    mipsel) container_hosts=x86_64 ;;
1261    mips) container_hosts=x86_64 ;;
1262    nios2) container_hosts=x86_64 ;;
1263    ppc) container_hosts=x86_64 ;;
1264    ppc64|ppc64le) container_hosts=x86_64 ;;
1265    riscv64) container_hosts=x86_64 ;;
1266    s390x) container_hosts=x86_64 ;;
1267    sh4) container_hosts=x86_64 ;;
1268    sparc64) container_hosts=x86_64 ;;
1269    tricore) container_hosts=x86_64 ;;
1270    x86_64) container_hosts="aarch64 ppc64le x86_64" ;;
1271    xtensa*) container_hosts=x86_64 ;;
1272  esac
1273
1274  for host in $container_hosts; do
1275    test "$container" != no || continue
1276    test "$host" = "$cpu" || continue
1277    case $target_arch in
1278      aarch64)
1279        # We don't have any bigendian build tools so we only use this for AArch64
1280        container_image=debian-arm64-cross
1281        container_cross_prefix=aarch64-linux-gnu-
1282        container_cross_cc=${container_cross_prefix}gcc
1283        ;;
1284      alpha)
1285        container_image=debian-legacy-test-cross
1286        container_cross_prefix=alpha-linux-gnu-
1287        container_cross_cc=${container_cross_prefix}gcc
1288        ;;
1289      arm)
1290        # We don't have any bigendian build tools so we only use this for ARM
1291        container_image=debian-armhf-cross
1292        container_cross_prefix=arm-linux-gnueabihf-
1293        ;;
1294      cris)
1295        container_image=fedora-cris-cross
1296        container_cross_prefix=cris-linux-gnu-
1297        ;;
1298      hexagon)
1299        container_image=debian-hexagon-cross
1300        container_cross_prefix=hexagon-unknown-linux-musl-
1301        container_cross_cc=${container_cross_prefix}clang
1302        ;;
1303      hppa)
1304        container_image=debian-all-test-cross
1305        container_cross_prefix=hppa-linux-gnu-
1306        container_cross_cc=${container_cross_prefix}gcc
1307        ;;
1308      i386)
1309        container_image=fedora-i386-cross
1310        container_cross_prefix=
1311        ;;
1312      loongarch64)
1313        container_image=debian-loongarch-cross
1314        container_cross_prefix=loongarch64-unknown-linux-gnu-
1315        ;;
1316      m68k)
1317        container_image=debian-all-test-cross
1318        container_cross_prefix=m68k-linux-gnu-
1319        container_cross_cc=${container_cross_prefix}gcc
1320        ;;
1321      microblaze)
1322        container_image=debian-microblaze-cross
1323        container_cross_prefix=microblaze-linux-musl-
1324        ;;
1325      mips64el)
1326        container_image=debian-mips64el-cross
1327        container_cross_prefix=mips64el-linux-gnuabi64-
1328        ;;
1329      mips64)
1330        container_image=debian-all-test-cross
1331        container_cross_prefix=mips64-linux-gnuabi64-
1332        ;;
1333      mips)
1334        container_image=debian-all-test-cross
1335        container_cross_prefix=mips-linux-gnu-
1336        ;;
1337      nios2)
1338        container_image=debian-nios2-cross
1339        container_cross_prefix=nios2-linux-gnu-
1340        ;;
1341      ppc)
1342        container_image=debian-all-test-cross
1343        container_cross_prefix=powerpc-linux-gnu-
1344        container_cross_cc=${container_cross_prefix}gcc
1345        ;;
1346      ppc64|ppc64le)
1347        container_image=debian-all-test-cross
1348        container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1349        ;;
1350      riscv64)
1351        container_image=debian-all-test-cross
1352        container_cross_prefix=riscv64-linux-gnu-
1353        ;;
1354      sh4)
1355        container_image=debian-legacy-test-cross
1356        container_cross_prefix=sh4-linux-gnu-
1357        ;;
1358      sparc64)
1359        container_image=debian-all-test-cross
1360        container_cross_prefix=sparc64-linux-gnu-
1361        ;;
1362      tricore)
1363        container_image=debian-tricore-cross
1364        container_cross_prefix=tricore-
1365        ;;
1366      x86_64)
1367        container_image=debian-amd64-cross
1368        container_cross_prefix=x86_64-linux-gnu-
1369        ;;
1370      xtensa*)
1371        container_image=debian-xtensa-cross
1372
1373        # default to the dc232b cpu
1374        container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1375        ;;
1376      *)
1377        # Debian and GNU architecture names usually match
1378        container_image=debian-$target_arch-cross
1379        container_cross_prefix=$target_arch-linux-gnu-
1380        ;;
1381    esac
1382    : ${container_cross_cc:=${container_cross_prefix}gcc}
1383    : ${container_cross_ar:=${container_cross_prefix}ar}
1384    : ${container_cross_as:=${container_cross_prefix}as}
1385    : ${container_cross_ld:=${container_cross_prefix}ld}
1386    : ${container_cross_nm:=${container_cross_prefix}nm}
1387    : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
1388    : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
1389    : ${container_cross_strip:=${container_cross_prefix}strip}
1390  done
1391
1392  try=cross
1393  case "$target_arch:$cpu" in
1394    aarch64_be:aarch64 | \
1395    armeb:arm | \
1396    i386:x86_64 | \
1397    mips*:mips64 | \
1398    ppc*:ppc64 | \
1399    sparc:sparc64 | \
1400    "$cpu:$cpu")
1401      try='native cross' ;;
1402  esac
1403  eval "target_cflags=\${cross_cc_cflags_$target_arch}"
1404  for thistry in $try; do
1405    case $thistry in
1406    native)
1407      target_cc=$cc
1408      target_ccas=$ccas
1409      target_ar=$ar
1410      target_as=$as
1411      target_ld=$ld
1412      target_nm=$nm
1413      target_objcopy=$objcopy
1414      target_ranlib=$ranlib
1415      target_strip=$strip
1416      ;;
1417    cross)
1418      target_cc=
1419      if eval test -n "\"\${cross_cc_$target_arch}\""; then
1420        if eval has "\"\${cross_cc_$target_arch}\""; then
1421          eval "target_cc=\"\${cross_cc_$target_arch}\""
1422        fi
1423      else
1424        compute_target_variable $target_arch target_cc gcc
1425      fi
1426      target_ccas=$target_cc
1427      compute_target_variable $target_arch target_ar ar
1428      compute_target_variable $target_arch target_as as
1429      compute_target_variable $target_arch target_ld ld
1430      compute_target_variable $target_arch target_nm nm
1431      compute_target_variable $target_arch target_objcopy objcopy
1432      compute_target_variable $target_arch target_ranlib ranlib
1433      compute_target_variable $target_arch target_strip strip
1434      ;;
1435    esac
1436
1437    if test -n "$target_cc"; then
1438      case $target_arch in
1439        i386|x86_64)
1440          if $target_cc --version | grep -qi "clang"; then
1441            continue
1442          fi
1443          ;;
1444      esac
1445    elif test -n "$target_as" && test -n "$target_ld"; then
1446      # Special handling for assembler only targets
1447      case $target in
1448        tricore-softmmu)
1449          build_static=
1450          got_cross_cc=yes
1451          break
1452          ;;
1453        *)
1454          continue
1455          ;;
1456      esac
1457    else
1458      continue
1459    fi
1460
1461    write_c_skeleton
1462    case $1 in
1463      *-softmmu)
1464        if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
1465          do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
1466          got_cross_cc=yes
1467          break
1468        fi
1469        ;;
1470      *)
1471        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
1472          build_static=y
1473          got_cross_cc=yes
1474          break
1475        fi
1476        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
1477          build_static=
1478          got_cross_cc=yes
1479          break
1480        fi
1481        ;;
1482    esac
1483  done
1484  if test $got_cross_cc != yes; then
1485    build_static=
1486    target_cc=
1487    target_ccas=
1488    target_ar=
1489    target_as=
1490    target_ld=
1491    target_nm=
1492    target_objcopy=
1493    target_ranlib=
1494    target_strip=
1495  fi
1496  test -n "$target_cc"
1497}
1498
1499write_target_makefile() {
1500  echo "EXTRA_CFLAGS=$target_cflags"
1501  if test -z "$target_cc" && test -z "$target_as"; then
1502    test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
1503    echo "$1: docker-image-$container_image" >> Makefile.prereqs
1504    if test -n "$container_cross_cc"; then
1505      echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1506      echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1507    fi
1508    echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
1509    echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
1510    echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
1511    echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
1512    echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
1513    echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
1514    echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
1515  else
1516    if test -n "$target_cc"; then
1517      echo "CC=$target_cc"
1518      echo "CCAS=$target_ccas"
1519    fi
1520    if test -n "$target_ar"; then
1521      echo "AR=$target_ar"
1522    fi
1523    if test -n "$target_as"; then
1524      echo "AS=$target_as"
1525    fi
1526    if test -n "$target_ld"; then
1527      echo "LD=$target_ld"
1528    fi
1529    if test -n "$target_nm"; then
1530      echo "NM=$target_nm"
1531    fi
1532    if test -n "$target_objcopy"; then
1533      echo "OBJCOPY=$target_objcopy"
1534    fi
1535    if test -n "$target_ranlib"; then
1536      echo "RANLIB=$target_ranlib"
1537    fi
1538    if test -n "$target_strip"; then
1539      echo "STRIP=$target_strip"
1540    fi
1541  fi
1542}
1543
1544#######################################
1545# cross-compiled firmware targets
1546
1547# Set up build tree symlinks that point back into the source tree
1548# (these can be both files and directories).
1549# Caution: avoid adding files or directories here using wildcards. This
1550# will result in problems later if a new file matching the wildcard is
1551# added to the source tree -- nothing will cause configure to be rerun
1552# so the build tree will be missing the link back to the new file, and
1553# tests might fail. Prefer to keep the relevant files in their own
1554# directory and symlink the directory instead.
1555LINKS="Makefile"
1556LINKS="$LINKS docs/config"
1557LINKS="$LINKS pc-bios/optionrom/Makefile"
1558LINKS="$LINKS pc-bios/s390-ccw/Makefile"
1559LINKS="$LINKS pc-bios/vof/Makefile"
1560LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
1561LINKS="$LINKS tests/avocado tests/data"
1562LINKS="$LINKS tests/qemu-iotests/check"
1563LINKS="$LINKS python"
1564LINKS="$LINKS contrib/plugins/Makefile "
1565for f in $LINKS ; do
1566    if [ -e "$source_path/$f" ]; then
1567        symlink "$source_path/$f" "$f"
1568    fi
1569done
1570
1571echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
1572
1573# Mac OS X ships with a broken assembler
1574if have_target i386-softmmu x86_64-softmmu && \
1575        test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
1576        test "$targetos" != "haiku" && \
1577        probe_target_compiler i386-softmmu; then
1578    subdirs="$subdirs pc-bios/optionrom"
1579    config_mak=pc-bios/optionrom/config.mak
1580    echo "# Automatically generated by configure - do not modify" > $config_mak
1581    echo "TOPSRC_DIR=$source_path" >> $config_mak
1582    write_target_makefile >> $config_mak
1583fi
1584
1585if have_target ppc-softmmu ppc64-softmmu && \
1586        probe_target_compiler ppc-softmmu; then
1587    subdirs="$subdirs pc-bios/vof"
1588    config_mak=pc-bios/vof/config.mak
1589    echo "# Automatically generated by configure - do not modify" > $config_mak
1590    echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
1591    write_target_makefile >> $config_mak
1592fi
1593
1594# Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
1595# (which is the lowest architecture level that Clang supports)
1596if have_target s390x-softmmu && probe_target_compiler s390x-softmmu && \
1597    GIT=git "$source_path/scripts/git-submodule.sh" "$git_submodules_action" roms/SLOF >> config.log 2>&1; then
1598  write_c_skeleton
1599  do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
1600  has_z900=$?
1601  if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
1602    if [ $has_z900 != 0 ]; then
1603      echo "WARNING: Your compiler does not support the z900!"
1604      echo "         The s390-ccw bios will only work with guest CPUs >= z10."
1605    fi
1606    subdirs="$subdirs pc-bios/s390-ccw"
1607    config_mak=pc-bios/s390-ccw/config-host.mak
1608    echo "# Automatically generated by configure - do not modify" > $config_mak
1609    echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
1610    echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_mak
1611    write_target_makefile >> $config_mak
1612  fi
1613fi
1614
1615#######################################
1616# generate config-host.mak
1617
1618config_host_mak="config-host.mak"
1619
1620echo "# Automatically generated by configure - do not modify" > $config_host_mak
1621echo >> $config_host_mak
1622
1623echo all: >> $config_host_mak
1624
1625echo "SRC_PATH=$source_path" >> $config_host_mak
1626echo "TARGET_DIRS=$target_list" >> $config_host_mak
1627echo "GDB=$gdb_bin" >> $config_host_mak
1628if test "$container" != no; then
1629    echo "RUNC=$runc" >> $config_host_mak
1630fi
1631echo "SUBDIRS=$subdirs" >> $config_host_mak
1632echo "PYTHON=$python" >> $config_host_mak
1633echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
1634echo "MESON=$meson" >> $config_host_mak
1635echo "NINJA=$ninja" >> $config_host_mak
1636echo "EXESUF=$EXESUF" >> $config_host_mak
1637
1638# use included Linux headers for KVM architectures
1639if test "$targetos" = "linux" && test -n "$linux_arch"; then
1640  symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
1641fi
1642
1643for target in $target_list; do
1644    target_dir="$target"
1645    target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
1646    case $target in
1647        *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
1648        *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
1649    esac
1650done
1651
1652if test "$default_targets" = "yes"; then
1653  echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
1654fi
1655
1656# contrib/plugins configuration
1657echo "# Automatically generated by configure - do not modify" > contrib/plugins/$config_host_mak
1658echo "SRC_PATH=$source_path/contrib/plugins" >> contrib/plugins/$config_host_mak
1659echo "PKG_CONFIG=${pkg_config}" >> contrib/plugins/$config_host_mak
1660echo "CC=$cc $CPU_CFLAGS" >> contrib/plugins/$config_host_mak
1661echo "CFLAGS=${CFLAGS-$default_cflags} $EXTRA_CFLAGS" >> contrib/plugins/$config_host_mak
1662if test "$targetos" = darwin; then
1663  echo "CONFIG_DARWIN=y" >> contrib/plugins/$config_host_mak
1664fi
1665
1666# tests/tcg configuration
1667(config_host_mak=tests/tcg/config-host.mak
1668mkdir -p tests/tcg
1669echo "# Automatically generated by configure - do not modify" > $config_host_mak
1670echo "SRC_PATH=$source_path" >> $config_host_mak
1671
1672tcg_tests_targets=
1673for target in $target_list; do
1674  arch=${target%%-*}
1675
1676  case $target in
1677    xtensa*-linux-user)
1678      # the toolchain is not complete with headers, only build system tests
1679      continue
1680      ;;
1681    *-softmmu)
1682      test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
1683      qemu="qemu-system-$arch"
1684      ;;
1685    *-linux-user|*-bsd-user)
1686      qemu="qemu-$arch"
1687      ;;
1688  esac
1689
1690  if probe_target_compiler $target || test -n "$container_image"; then
1691      test -n "$container_image" && build_static=y
1692      mkdir -p "tests/tcg/$target"
1693      config_target_mak=tests/tcg/$target/config-target.mak
1694      ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
1695      echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
1696      echo "TARGET_NAME=$arch" >> "$config_target_mak"
1697      echo "TARGET=$target" >> "$config_target_mak"
1698      write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
1699      echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
1700      echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
1701
1702      # will GDB work with these binaries?
1703      if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
1704          echo "GDB=$gdb_bin" >> $config_target_mak
1705      fi
1706
1707      echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
1708      tcg_tests_targets="$tcg_tests_targets $target"
1709  fi
1710done
1711
1712if test "$tcg" = "enabled"; then
1713    echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
1714fi
1715)
1716
1717if test "$skip_meson" = no; then
1718  cross="config-meson.cross.new"
1719  meson_quote() {
1720    test $# = 0 && return
1721    echo "'$(echo $* | sed "s/ /','/g")'"
1722  }
1723
1724  echo "# Automatically generated by configure - do not modify" > $cross
1725  echo "[properties]" >> $cross
1726
1727  # unroll any custom device configs
1728  for a in $device_archs; do
1729      eval "c=\$devices_${a}"
1730      echo "${a}-softmmu = '$c'" >> $cross
1731  done
1732
1733  echo "[built-in options]" >> $cross
1734  echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
1735  echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
1736  test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
1737  echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
1738  echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
1739
1740  # Only enable by default for git builds and on select OSes
1741  echo "# environment defaults, can still be overridden on " >> $cross
1742  echo "# the command line" >> $cross
1743  if test -e "$source_path/.git" && \
1744      { test "$targetos" = linux || test "$targetos" = "windows"; }; then
1745      echo 'werror = true' >> $cross
1746  fi
1747  echo "[project options]" >> $cross
1748  if test "$SMBD" != ''; then
1749    echo "smbd = $(meson_quote "$SMBD")" >> $cross
1750  fi
1751  if test "${QEMU_GA_MANUFACTURER}" != ''; then
1752    echo "qemu_ga_manufacturer = $(meson_quote "${QEMU_GA_MANUFACTURER}")" >> $cross
1753  fi
1754  if test "${QEMU_GA_DISTRO}" != ''; then
1755    echo "qemu_ga_distro = $(meson_quote "${QEMU_GA_DISTRO}")" >> $cross
1756  fi
1757  if test "${QEMU_GA_VERSION}" != ''; then
1758    echo "qemu_ga_version = $(meson_quote "${QEMU_GA_VERSION}")" >> $cross
1759  fi
1760
1761  echo >> $cross
1762  echo "[binaries]" >> $cross
1763  echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
1764  test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
1765  test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
1766  echo "ar = [$(meson_quote $ar)]" >> $cross
1767  echo "nm = [$(meson_quote $nm)]" >> $cross
1768  echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
1769  echo "pkg-config = [$(meson_quote $pkg_config)]" >> $cross
1770  echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
1771  if has $sdl2_config; then
1772    echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
1773  fi
1774  echo "strip = [$(meson_quote $strip)]" >> $cross
1775  echo "widl = [$(meson_quote $widl)]" >> $cross
1776  echo "windres = [$(meson_quote $windres)]" >> $cross
1777  echo "windmc = [$(meson_quote $windmc)]" >> $cross
1778  if test "$cross_compile" = "yes"; then
1779    echo "[host_machine]" >> $cross
1780    echo "system = '$targetos'" >> $cross
1781    case "$cpu" in
1782        i386)
1783            echo "cpu_family = 'x86'" >> $cross
1784            ;;
1785        *)
1786            echo "cpu_family = '$cpu'" >> $cross
1787            ;;
1788    esac
1789    echo "cpu = '$cpu'" >> $cross
1790    if test "$bigendian" = "yes" ; then
1791        echo "endian = 'big'" >> $cross
1792    else
1793        echo "endian = 'little'" >> $cross
1794    fi
1795
1796    native="config-meson.native.new"
1797    echo "# Automatically generated by configure - do not modify" > $native
1798    echo "[binaries]" >> $native
1799    echo "c = [$(meson_quote $host_cc)]" >> $native
1800    mv $native config-meson.native
1801    meson_option_add --native-file
1802    meson_option_add config-meson.native
1803  fi
1804  mv $cross config-meson.cross
1805  meson_add_machine_file config-meson.cross
1806  if test -f "$source_path/configs/meson/$targetos.txt"; then
1807    meson_add_machine_file $source_path/configs/meson/$targetos.txt
1808  fi
1809
1810  rm -rf meson-private meson-info meson-logs
1811
1812  test "$download" = "disabled" && meson_option_add "--wrap-mode=nodownload"
1813  test "$default_feature" = no && meson_option_add -Dauto_features=disabled
1814  test "$static" = yes && meson_option_add -Dprefer_static=true
1815  test "$pie" = no && meson_option_add -Db_pie=false
1816
1817  # QEMU options
1818  test "$cfi" != false && meson_option_add "-Dcfi=$cfi" "-Db_lto=$cfi"
1819  test "$docs" != auto && meson_option_add "-Ddocs=$docs"
1820  test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
1821  test "$plugins" = yes && meson_option_add "-Dplugins=true"
1822  test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
1823  run_meson() {
1824    NINJA=$ninja $meson setup "$@" "$PWD" "$source_path"
1825  }
1826  eval run_meson $meson_options
1827  if test "$?" -ne 0 ; then
1828      error_exit "meson setup failed"
1829  fi
1830  echo "$meson" > build.ninja.stamp
1831else
1832  if test -f meson-private/cmd_line.txt; then
1833    # Adjust old command line options that were removed
1834    # sed -i is not portable
1835    perl -i -ne '
1836      /^sphinx_build/ && next;
1837      print;' meson-private/cmd_line.txt
1838  fi
1839fi
1840
1841# Save the configure command line for later reuse.
1842cat <<EOD >config.status
1843#!/bin/sh
1844# Generated by configure.
1845# Run this file to recreate the current configuration.
1846# Compiler output produced by configure, useful for debugging
1847# configure, is in config.log if it exists.
1848EOD
1849
1850preserve_env() {
1851    envname=$1
1852
1853    eval envval=\$$envname
1854
1855    if test -n "$envval"
1856    then
1857	echo "$envname='$envval'" >> config.status
1858	echo "export $envname" >> config.status
1859    else
1860	echo "unset $envname" >> config.status
1861    fi
1862}
1863
1864# Preserve various env variables that influence what
1865# features/build target configure will detect
1866preserve_env AR
1867preserve_env AS
1868preserve_env CC
1869preserve_env CFLAGS
1870preserve_env CXX
1871preserve_env CXXFLAGS
1872preserve_env LD
1873preserve_env LDFLAGS
1874preserve_env LD_LIBRARY_PATH
1875preserve_env NM
1876preserve_env OBJCFLAGS
1877preserve_env OBJCOPY
1878preserve_env PATH
1879preserve_env PKG_CONFIG
1880preserve_env PKG_CONFIG_LIBDIR
1881preserve_env PKG_CONFIG_PATH
1882preserve_env PYTHON
1883preserve_env QEMU_GA_MANUFACTURER
1884preserve_env QEMU_GA_DISTRO
1885preserve_env QEMU_GA_VERSION
1886preserve_env SDL2_CONFIG
1887preserve_env SMBD
1888preserve_env STRIP
1889preserve_env WIDL
1890preserve_env WINDRES
1891preserve_env WINDMC
1892
1893printf "exec" >>config.status
1894for i in "$0" "$@"; do
1895  test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
1896done
1897echo ' "$@"' >>config.status
1898chmod +x config.status
1899
1900rm -r "$TMPDIR1"
1901