qemu-e2k/configure
Peter Maydell c0c34c9105 configure: Honour cross-prefix when finding ObjC compiler
Currently when configure picks an ObjectiveC compiler it doesn't pay
attention to the cross-prefix.  This isn't a big deal in practice,
because we only use ObjC on macos and you can't cross-compile to
macos.  But it's a bit inconsistent.

Rearrange the handling of objcc in configure so that we do the
same thing that we do with cc and cxx. This means that the logic
for picking the ObjC compiler goes from:
 if --objcc is specified, use that
 otherwise if clang is available, use that
 otherwise use $cc
to:
 if --objcc is specified, use that
 otherwise if --cross-prefix is specified, use ${cross_prefix}clang
 otherwise if clang is available, use that
 otherwise use $cc

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1185
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20230418161554.744834-1-peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-04-20 11:17:36 +02:00

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#!/bin/sh
#
# qemu configure script (c) 2003 Fabrice Bellard
#
# Unset some variables known to interfere with behavior of common tools,
# just as autoconf does.
CLICOLOR_FORCE= GREP_OPTIONS=
unset CLICOLOR_FORCE GREP_OPTIONS
# Don't allow CCACHE, if present, to use cached results of compile tests!
export CCACHE_RECACHE=yes
# make source path absolute
source_path=$(cd "$(dirname -- "$0")"; pwd)
if test "$PWD" = "$source_path"
then
echo "Using './build' as the directory for build output"
MARKER=build/auto-created-by-configure
if test -e build
then
if test -f $MARKER
then
rm -rf build
else
echo "ERROR: ./build dir already exists and was not previously created by configure"
exit 1
fi
fi
if ! mkdir build || ! touch $MARKER
then
echo "ERROR: Could not create ./build directory. Check the permissions on"
echo "your source directory, or try doing an out-of-tree build."
exit 1
fi
cat > GNUmakefile <<'EOF'
# This file is auto-generated by configure to support in-source tree
# 'make' command invocation
ifeq ($(MAKECMDGOALS),)
recurse: all
endif
.NOTPARALLEL: %
%: force
@echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
@$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
@if test "$(MAKECMDGOALS)" = "distclean" && \
test -e build/auto-created-by-configure ; \
then \
rm -rf build GNUmakefile ; \
fi
force: ;
.PHONY: force
GNUmakefile: ;
EOF
cd build
exec "$source_path/configure" "$@"
fi
# Temporary directory used for files created while
# configure runs. Since it is in the build directory
# we can safely blow away any previous version of it
# (and we need not jump through hoops to try to delete
# it when configure exits.)
TMPDIR1="config-temp"
rm -rf "${TMPDIR1}"
if ! mkdir -p "${TMPDIR1}"; then
echo "ERROR: failed to create temporary directory"
exit 1
fi
TMPB="qemu-conf"
TMPC="${TMPDIR1}/${TMPB}.c"
TMPO="${TMPDIR1}/${TMPB}.o"
TMPM="${TMPDIR1}/${TMPB}.m"
TMPE="${TMPDIR1}/${TMPB}.exe"
rm -f config.log
# Print a helpful header at the top of config.log
echo "# QEMU configure log $(date)" >> config.log
printf "# Configured with:" >> config.log
# repeat the invocation to log and stdout for CI
invoke=$(printf " '%s'" "$0" "$@")
test -n "$GITLAB_CI" && echo "configuring with: $invoke"
{ echo "$invoke"; echo; echo "#"; } >> config.log
quote_sh() {
printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
}
print_error() {
(echo
echo "ERROR: $1"
while test -n "$2"; do
echo " $2"
shift
done
echo) >&2
}
error_exit() {
print_error "$@"
exit 1
}
do_compiler() {
# Run the compiler, capturing its output to the log. First argument
# is compiler binary to execute.
compiler="$1"
shift
if test -n "$BASH_VERSION"; then eval '
echo >>config.log "
funcs: ${FUNCNAME[*]}
lines: ${BASH_LINENO[*]}"
'; fi
echo $compiler "$@" >> config.log
$compiler "$@" >> config.log 2>&1 || return $?
}
do_compiler_werror() {
# Run the compiler, capturing its output to the log. First argument
# is compiler binary to execute.
compiler="$1"
shift
if test -n "$BASH_VERSION"; then eval '
echo >>config.log "
funcs: ${FUNCNAME[*]}
lines: ${BASH_LINENO[*]}"
'; fi
echo $compiler "$@" >> config.log
$compiler "$@" >> config.log 2>&1 || return $?
# Test passed. If this is an --enable-werror build, rerun
# the test with -Werror and bail out if it fails. This
# makes warning-generating-errors in configure test code
# obvious to developers.
if test "$werror" != "yes"; then
return 0
fi
# Don't bother rerunning the compile if we were already using -Werror
case "$*" in
*-Werror*)
return 0
;;
esac
echo $compiler -Werror "$@" >> config.log
$compiler -Werror "$@" >> config.log 2>&1 && return $?
error_exit "configure test passed without -Werror but failed with -Werror." \
"This is probably a bug in the configure script. The failing command" \
"will be at the bottom of config.log." \
"You can run configure with --disable-werror to bypass this check."
}
do_cc() {
do_compiler_werror "$cc" $CPU_CFLAGS "$@"
}
do_objc() {
do_compiler_werror "$objcc" $CPU_CFLAGS "$@"
}
# Append $2 to the variable named $1, with space separation
add_to() {
eval $1=\${$1:+\"\$$1 \"}\$2
}
compile_object() {
local_cflags="$1"
do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
}
compile_prog() {
local_cflags="$1"
local_ldflags="$2"
do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
$LDFLAGS $EXTRA_LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
}
# symbolically link $1 to $2. Portable version of "ln -sf".
symlink() {
rm -rf "$2"
mkdir -p "$(dirname "$2")"
ln -s "$1" "$2"
}
# check whether a command is available to this shell (may be either an
# executable or a builtin)
has() {
type "$1" >/dev/null 2>&1
}
version_ge () {
local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
local_ver2=$(echo "$2" | tr . ' ')
while true; do
set x $local_ver1
local_first=${2-0}
# 'shift 2' if $2 is set, or 'shift' if $2 is not set
shift ${2:+2}
local_ver1=$*
set x $local_ver2
# the second argument finished, the first must be greater or equal
test $# = 1 && return 0
test $local_first -lt $2 && return 1
test $local_first -gt $2 && return 0
shift ${2:+2}
local_ver2=$*
done
}
if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
then
error_exit "main directory cannot contain spaces nor colons"
fi
# default parameters
cpu=""
static="no"
cross_compile="no"
cross_prefix=""
host_cc="cc"
stack_protector=""
safe_stack=""
use_containers="yes"
gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
gdb_arches=""
glib_has_gslice="no"
if test -e "$source_path/.git"
then
git_submodules_action="update"
else
git_submodules_action="ignore"
fi
git_submodules="ui/keycodemapdb"
git="git"
# Don't accept a target_list environment variable.
unset target_list
unset target_list_exclude
# Default value for a variable defining feature "foo".
# * foo="no" feature will only be used if --enable-foo arg is given
# * foo="" feature will be searched for, and if found, will be used
# unless --disable-foo is given
# * foo="yes" this value will only be set by --enable-foo flag.
# feature will searched for,
# if not found, configure exits with error
#
# Always add --enable-foo and --disable-foo command line args.
# Distributions want to ensure that several features are compiled in, and it
# is impossible without a --enable-foo that exits if a feature is not found.
default_feature=""
# parse CC options second
for opt do
optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
case "$opt" in
--without-default-features)
default_feature="no"
;;
esac
done
EXTRA_CFLAGS=""
EXTRA_CXXFLAGS=""
EXTRA_OBJCFLAGS=""
EXTRA_LDFLAGS=""
debug_tcg="no"
sanitizers="no"
tsan="no"
fortify_source="yes"
EXESUF=""
modules="no"
prefix="/usr/local"
qemu_suffix="qemu"
softmmu="yes"
linux_user=""
bsd_user=""
pie=""
coroutine=""
plugins="$default_feature"
meson=""
ninja=""
bindir="bin"
skip_meson=no
vfio_user_server="disabled"
# The following Meson options are handled manually (still they
# are included in the automatically generated help message)
# 1. Track which submodules are needed
fdt="auto"
# 2. Automatically enable/disable other options
tcg="auto"
cfi="false"
# parse CC options second
for opt do
optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
case "$opt" in
--cross-prefix=*) cross_prefix="$optarg"
cross_compile="yes"
;;
--cc=*) CC="$optarg"
;;
--cxx=*) CXX="$optarg"
;;
--objcc=*) objcc="$optarg"
;;
--cpu=*) cpu="$optarg"
;;
--extra-cflags=*)
EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
;;
--extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
;;
--extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
;;
--extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
;;
--cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
;;
--cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
eval "cross_cc_cflags_${cc_arch}=\$optarg"
;;
--cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
eval "cross_cc_${cc_arch}=\$optarg"
;;
--cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
;;
--cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
eval "cross_prefix_${cc_arch}=\$optarg"
;;
esac
done
# Preferred compiler:
# ${CC} (if set)
# ${cross_prefix}gcc (if cross-prefix specified)
# system compiler
if test -z "${CC}${cross_prefix}"; then
cc="$host_cc"
else
cc="${CC-${cross_prefix}gcc}"
fi
if test -z "${CXX}${cross_prefix}"; then
cxx="c++"
else
cxx="${CXX-${cross_prefix}g++}"
fi
# Preferred ObjC compiler:
# $objcc (if set, i.e. via --objcc option)
# ${cross_prefix}clang (if cross-prefix specified)
# clang (if available)
# $cc
if test -z "${objcc}${cross_prefix}"; then
if has clang; then
objcc=clang
else
objcc="$cc"
fi
else
objcc="${objcc-${cross_prefix}clang}"
fi
ar="${AR-${cross_prefix}ar}"
as="${AS-${cross_prefix}as}"
ccas="${CCAS-$cc}"
objcopy="${OBJCOPY-${cross_prefix}objcopy}"
ld="${LD-${cross_prefix}ld}"
ranlib="${RANLIB-${cross_prefix}ranlib}"
nm="${NM-${cross_prefix}nm}"
smbd="$SMBD"
strip="${STRIP-${cross_prefix}strip}"
widl="${WIDL-${cross_prefix}widl}"
windres="${WINDRES-${cross_prefix}windres}"
windmc="${WINDMC-${cross_prefix}windmc}"
pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
query_pkg_config() {
"${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
}
pkg_config=query_pkg_config
sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
# default flags for all hosts
# We use -fwrapv to tell the compiler that we require a C dialect where
# left shift of signed integers is well defined and has the expected
# 2s-complement style results. (Both clang and gcc agree that it
# provides these semantics.)
QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
QEMU_LDFLAGS=
# Flags that are needed during configure but later taken care of by Meson
CONFIGURE_CFLAGS="-std=gnu11 -Wall"
CONFIGURE_LDFLAGS=
check_define() {
cat > $TMPC <<EOF
#if !defined($1)
#error $1 not defined
#endif
int main(void) { return 0; }
EOF
compile_object
}
check_include() {
cat > $TMPC <<EOF
#include <$1>
int main(void) { return 0; }
EOF
compile_object
}
write_c_skeleton() {
cat > $TMPC <<EOF
int main(void) { return 0; }
EOF
}
if check_define __linux__ ; then
targetos=linux
elif check_define _WIN32 ; then
targetos=windows
elif check_define __OpenBSD__ ; then
targetos=openbsd
elif check_define __sun__ ; then
targetos=sunos
elif check_define __HAIKU__ ; then
targetos=haiku
elif check_define __FreeBSD__ ; then
targetos=freebsd
elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
targetos=gnu/kfreebsd
elif check_define __DragonFly__ ; then
targetos=dragonfly
elif check_define __NetBSD__; then
targetos=netbsd
elif check_define __APPLE__; then
targetos=darwin
else
# This is a fatal error, but don't report it yet, because we
# might be going to just print the --help text, or it might
# be the result of a missing compiler.
targetos=bogus
fi
# OS specific
mingw32="no"
bsd="no"
linux="no"
solaris="no"
case $targetos in
windows)
mingw32="yes"
plugins="no"
pie="no"
;;
gnu/kfreebsd)
bsd="yes"
;;
freebsd)
bsd="yes"
make="${MAKE-gmake}"
# needed for kinfo_getvmmap(3) in libutil.h
;;
dragonfly)
bsd="yes"
make="${MAKE-gmake}"
;;
netbsd)
bsd="yes"
make="${MAKE-gmake}"
;;
openbsd)
bsd="yes"
make="${MAKE-gmake}"
;;
darwin)
bsd="yes"
darwin="yes"
# Disable attempts to use ObjectiveC features in os/object.h since they
# won't work when we're compiling with gcc as a C compiler.
QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
;;
sunos)
solaris="yes"
make="${MAKE-gmake}"
# needed for CMSG_ macros in sys/socket.h
QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
# needed for TIOCWIN* defines in termios.h
QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
;;
haiku)
pie="no"
QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
;;
linux)
linux="yes"
;;
esac
if test ! -z "$cpu" ; then
# command line argument
:
elif check_define __i386__ ; then
cpu="i386"
elif check_define __x86_64__ ; then
if check_define __ILP32__ ; then
cpu="x32"
else
cpu="x86_64"
fi
elif check_define __sparc__ ; then
if check_define __arch64__ ; then
cpu="sparc64"
else
cpu="sparc"
fi
elif check_define _ARCH_PPC ; then
if check_define _ARCH_PPC64 ; then
if check_define _LITTLE_ENDIAN ; then
cpu="ppc64le"
else
cpu="ppc64"
fi
else
cpu="ppc"
fi
elif check_define __mips__ ; then
cpu="mips"
elif check_define __s390__ ; then
if check_define __s390x__ ; then
cpu="s390x"
else
cpu="s390"
fi
elif check_define __riscv ; then
cpu="riscv"
elif check_define __arm__ ; then
cpu="arm"
elif check_define __aarch64__ ; then
cpu="aarch64"
elif check_define __loongarch64 ; then
cpu="loongarch64"
else
# Using uname is really broken, but it is just a fallback for architectures
# that are going to use TCI anyway
cpu=$(uname -m)
echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
fi
# Normalise host CPU name and set multilib cflags. The canonicalization
# isn't really necessary, because the architectures that we check for
# should not hit the 'uname -m' case, but better safe than sorry.
# Note that this case should only have supported host CPUs, not guests.
case "$cpu" in
armv*b|armv*l|arm)
cpu="arm" ;;
i386|i486|i586|i686)
cpu="i386"
CPU_CFLAGS="-m32" ;;
x32)
cpu="x86_64"
CPU_CFLAGS="-mx32" ;;
x86_64|amd64)
cpu="x86_64"
# ??? Only extremely old AMD cpus do not have cmpxchg16b.
# If we truly care, we should simply detect this case at
# runtime and generate the fallback to serial emulation.
CPU_CFLAGS="-m64 -mcx16" ;;
mips*)
cpu="mips" ;;
ppc)
CPU_CFLAGS="-m32" ;;
ppc64)
CPU_CFLAGS="-m64 -mbig-endian" ;;
ppc64le)
cpu="ppc64"
CPU_CFLAGS="-m64 -mlittle-endian" ;;
s390)
CPU_CFLAGS="-m31" ;;
s390x)
CPU_CFLAGS="-m64" ;;
sparc|sun4[cdmuv])
cpu="sparc"
CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
sparc64)
CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
esac
: ${make=${MAKE-make}}
check_py_version() {
# We require python >= 3.6.
# NB: a True python conditional creates a non-zero return code (Failure)
"$1" -c 'import sys; sys.exit(sys.version_info < (3,6))'
}
python=
first_python=
if test -z "${PYTHON}"; then
explicit_python=no
# A bare 'python' is traditionally python 2.x, but some distros
# have it as python 3.x, so check in both places.
for binary in python3 python python3.11 python3.10 python3.9 python3.8 python3.7 python3.6; do
if has "$binary"; then
python=$(command -v "$binary")
if check_py_version "$python"; then
# This one is good.
first_python=
break
else
first_python=$python
fi
fi
done
else
# Same as above, but only check the environment variable.
has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
python=$(command -v "$PYTHON")
explicit_python=yes
if check_py_version "$python"; then
# This one is good.
first_python=
else
first_python=$first_python
fi
fi
# Check for ancillary tools used in testing
genisoimage=
for binary in genisoimage mkisofs
do
if has $binary
then
genisoimage=$(command -v "$binary")
break
fi
done
if test "$mingw32" = "yes" ; then
EXESUF=".exe"
# MinGW needs -mthreads for TLS and macro _MT.
CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
prefix="/qemu"
bindir=""
qemu_suffix=""
fi
werror=""
meson_option_build_array() {
printf '['
(if test "$targetos" = windows; then
IFS=\;
else
IFS=:
fi
for e in $1; do
printf '"""'
# backslash escape any '\' and '"' characters
printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
printf '""",'
done)
printf ']\n'
}
. "$source_path/scripts/meson-buildoptions.sh"
meson_options=
meson_option_add() {
meson_options="$meson_options $(quote_sh "$1")"
}
meson_option_parse() {
meson_options="$meson_options $(_meson_option_parse "$@")"
if test $? -eq 1; then
echo "ERROR: unknown option $1"
echo "Try '$0 --help' for more information"
exit 1
fi
}
for opt do
optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
case "$opt" in
--help|-h) show_help=yes
;;
--version|-V) exec cat "$source_path/VERSION"
;;
--prefix=*) prefix="$optarg"
;;
--cross-prefix=*)
;;
--cc=*)
;;
--host-cc=*) host_cc="$optarg"
;;
--cxx=*)
;;
--objcc=*)
;;
--make=*) make="$optarg"
;;
--install=*)
;;
--python=*) python="$optarg" ; explicit_python=yes
;;
--skip-meson) skip_meson=yes
;;
--meson=*) meson="$optarg"
;;
--ninja=*) ninja="$optarg"
;;
--smbd=*) smbd="$optarg"
;;
--extra-cflags=*)
;;
--extra-cxxflags=*)
;;
--extra-objcflags=*)
;;
--extra-ldflags=*)
;;
--cross-cc-*)
;;
--cross-prefix-*)
;;
--enable-debug-info) meson_option_add -Ddebug=true
;;
--disable-debug-info) meson_option_add -Ddebug=false
;;
--enable-modules)
modules="yes"
;;
--disable-modules)
modules="no"
;;
--cpu=*)
;;
--target-list=*) target_list="$optarg"
if test "$target_list_exclude"; then
error_exit "Can't mix --target-list with --target-list-exclude"
fi
;;
--target-list-exclude=*) target_list_exclude="$optarg"
if test "$target_list"; then
error_exit "Can't mix --target-list-exclude with --target-list"
fi
;;
--with-default-devices) meson_option_add -Ddefault_devices=true
;;
--without-default-devices) meson_option_add -Ddefault_devices=false
;;
--with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
;;
--with-devices-*) device_arch=${opt#--with-devices-};
device_arch=${device_arch%%=*}
cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
if test -f "$cf"; then
device_archs="$device_archs $device_arch"
eval "devices_${device_arch}=\$optarg"
else
error_exit "File $cf does not exist"
fi
;;
--without-default-features) # processed above
;;
--static)
static="yes"
QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
;;
--bindir=*) bindir="$optarg"
;;
--with-suffix=*) qemu_suffix="$optarg"
;;
--host=*|--build=*|\
--disable-dependency-tracking|\
--sbindir=*|--sharedstatedir=*|\
--oldincludedir=*|--datarootdir=*|--infodir=*|\
--htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
# These switches are silently ignored, for compatibility with
# autoconf-generated configure scripts. This allows QEMU's
# configure to be used by RPM and similar macros that set
# lots of directory switches by default.
;;
--enable-debug-tcg) debug_tcg="yes"
;;
--disable-debug-tcg) debug_tcg="no"
;;
--enable-debug)
# Enable debugging options that aren't excessively noisy
debug_tcg="yes"
meson_option_parse --enable-debug-mutex ""
meson_option_add -Doptimization=0
fortify_source="no"
;;
--enable-sanitizers) sanitizers="yes"
;;
--disable-sanitizers) sanitizers="no"
;;
--enable-tsan) tsan="yes"
;;
--disable-tsan) tsan="no"
;;
--disable-tcg) tcg="disabled"
plugins="no"
;;
--enable-tcg) tcg="enabled"
;;
--disable-system) softmmu="no"
;;
--enable-system) softmmu="yes"
;;
--disable-user)
linux_user="no" ;
bsd_user="no" ;
;;
--enable-user) ;;
--disable-linux-user) linux_user="no"
;;
--enable-linux-user) linux_user="yes"
;;
--disable-bsd-user) bsd_user="no"
;;
--enable-bsd-user) bsd_user="yes"
;;
--enable-pie) pie="yes"
;;
--disable-pie) pie="no"
;;
--enable-werror) werror="yes"
;;
--disable-werror) werror="no"
;;
--enable-stack-protector) stack_protector="yes"
;;
--disable-stack-protector) stack_protector="no"
;;
--enable-safe-stack) safe_stack="yes"
;;
--disable-safe-stack) safe_stack="no"
;;
--enable-cfi)
cfi="true";
meson_option_add -Db_lto=true
;;
--disable-cfi) cfi="false"
;;
--disable-fdt) fdt="disabled"
;;
--enable-fdt) fdt="enabled"
;;
--enable-fdt=git) fdt="internal"
;;
--enable-fdt=*) fdt="$optarg"
;;
--with-coroutine=*) coroutine="$optarg"
;;
--with-git=*) git="$optarg"
;;
--with-git-submodules=*)
git_submodules_action="$optarg"
;;
--enable-plugins) if test "$mingw32" = "yes"; then
error_exit "TCG plugins not currently supported on Windows platforms"
else
plugins="yes"
fi
;;
--disable-plugins) plugins="no"
;;
--enable-containers) use_containers="yes"
;;
--disable-containers) use_containers="no"
;;
--gdb=*) gdb_bin="$optarg"
;;
--enable-vfio-user-server) vfio_user_server="enabled"
;;
--disable-vfio-user-server) vfio_user_server="disabled"
;;
# everything else has the same name in configure and meson
--*) meson_option_parse "$opt" "$optarg"
;;
esac
done
# test for any invalid configuration combinations
if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
error_exit "Can't enable plugins on non-TCG builds"
fi
case $git_submodules_action in
update|validate)
if test ! -e "$source_path/.git"; then
echo "ERROR: cannot $git_submodules_action git submodules without .git"
exit 1
fi
;;
ignore)
if ! test -f "$source_path/ui/keycodemapdb/README"
then
echo
echo "ERROR: missing GIT submodules"
echo
if test -e "$source_path/.git"; then
echo "--with-git-submodules=ignore specified but submodules were not"
echo "checked out. Please initialize and update submodules."
else
echo "This is not a GIT checkout but module content appears to"
echo "be missing. Do not use 'git archive' or GitHub download links"
echo "to acquire QEMU source archives. Non-GIT builds are only"
echo "supported with source archives linked from:"
echo
echo " https://www.qemu.org/download/#source"
echo
echo "Developers working with GIT can use scripts/archive-source.sh"
echo "if they need to create valid source archives."
fi
echo
exit 1
fi
;;
*)
echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
exit 1
;;
esac
default_target_list=""
mak_wilds=""
if [ "$linux_user" != no ]; then
if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then
linux_user=yes
elif [ "$linux_user" = yes ]; then
error_exit "linux-user not supported on this architecture"
fi
fi
if [ "$bsd_user" != no ]; then
if [ "$bsd_user" = "" ]; then
test $targetos = freebsd && bsd_user=yes
fi
if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
error_exit "bsd-user not supported on this host OS"
fi
fi
if [ "$softmmu" = "yes" ]; then
mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
fi
if [ "$linux_user" = "yes" ]; then
mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
fi
if [ "$bsd_user" = "yes" ]; then
mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
fi
for config in $mak_wilds; do
target="$(basename "$config" .mak)"
if echo "$target_list_exclude" | grep -vq "$target"; then
default_target_list="${default_target_list} $target"
fi
done
if test x"$show_help" = x"yes" ; then
cat << EOF
Usage: configure [options]
Options: [defaults in brackets after descriptions]
Standard options:
--help print this message
--prefix=PREFIX install in PREFIX [$prefix]
--target-list=LIST set target list (default: build all)
$(echo Available targets: $default_target_list | \
fold -s -w 53 | sed -e 's/^/ /')
--target-list-exclude=LIST exclude a set of targets from the default target-list
Advanced options (experts only):
--cross-prefix=PREFIX use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
--cc=CC use C compiler CC [$cc]
--host-cc=CC use C compiler CC [$host_cc] for code run at
build time
--cxx=CXX use C++ compiler CXX [$cxx]
--objcc=OBJCC use Objective-C compiler OBJCC [$objcc]
--extra-cflags=CFLAGS append extra C compiler flags CFLAGS
--extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
--extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
--extra-ldflags=LDFLAGS append extra linker flags LDFLAGS
--cross-cc-ARCH=CC use compiler when building ARCH guest test cases
--cross-cc-cflags-ARCH= use compiler flags when building ARCH guest tests
--cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
--make=MAKE use specified make [$make]
--python=PYTHON use specified python [$python]
--meson=MESON use specified meson [$meson]
--ninja=NINJA use specified ninja [$ninja]
--smbd=SMBD use specified smbd [$smbd]
--with-git=GIT use specified git [$git]
--with-git-submodules=update update git submodules (default if .git dir exists)
--with-git-submodules=validate fail if git submodules are not up to date
--with-git-submodules=ignore do not update or check git submodules (default if no .git dir)
--static enable static build [$static]
--bindir=PATH install binaries in PATH
--with-suffix=SUFFIX suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
--without-default-features default all --enable-* options to "disabled"
--without-default-devices do not include any device that is not needed to
start the emulator (only use if you are including
desired devices in configs/devices/)
--with-devices-ARCH=NAME override default configs/devices
--enable-debug enable common debug build options
--enable-sanitizers enable default sanitizers
--enable-tsan enable thread sanitizer
--disable-werror disable compilation abort on warning
--disable-stack-protector disable compiler-provided stack protection
--cpu=CPU Build for host CPU [$cpu]
--with-coroutine=BACKEND coroutine backend. Supported options:
ucontext, sigaltstack, windows
--enable-plugins
enable plugins via shared library loading
--disable-containers don't use containers for cross-building
--gdb=GDB-path gdb to use for gdbstub tests [$gdb_bin]
EOF
meson_options_help
cat << EOF
system all system emulation targets
user supported user emulation targets
linux-user all linux usermode emulation targets
bsd-user all BSD usermode emulation targets
pie Position Independent Executables
modules modules support (non-Windows)
debug-tcg TCG debugging (default is disabled)
debug-info debugging information
safe-stack SafeStack Stack Smash Protection. Depends on
clang/llvm and requires coroutine backend ucontext.
NOTE: The object files are built at the place where configure is launched
EOF
exit 0
fi
# Remove old dependency files to make sure that they get properly regenerated
rm -f ./*/config-devices.mak.d
if test -z "$python"
then
# If first_python is set, there was a binary somewhere even though
# it was not suitable. Use it for the error message.
if test -n "$first_python"; then
error_exit "Cannot use '$first_python', Python >= 3.6 is required." \
"Use --python=/path/to/python to specify a supported Python."
else
error_exit "Python not found. Use --python=/path/to/python"
fi
fi
if ! has "$make"
then
error_exit "GNU make ($make) not found"
fi
if ! check_py_version "$python"; then
error_exit "Cannot use '$python', Python >= 3.6 is required." \
"Use --python=/path/to/python to specify a supported Python."
fi
# Resolve PATH + suppress writing compiled files
python="$(command -v "$python") -B"
has_meson() {
local python_dir=$(dirname "$python")
# PEP405: pyvenv.cfg is either adjacent to the Python executable
# or one directory above
if test -f $python_dir/pyvenv.cfg || test -f $python_dir/../pyvenv.cfg; then
# Ensure that Meson and Python come from the same virtual environment
test -x "$python_dir/meson" &&
test "$(command -v meson)" -ef "$python_dir/meson"
else
has meson
fi
}
if test -z "$meson"; then
if test "$explicit_python" = no && has_meson && version_ge "$(meson --version)" 0.61.5; then
meson=meson
elif test "$git_submodules_action" != 'ignore' ; then
meson=git
elif test -e "${source_path}/meson/meson.py" ; then
meson=internal
else
if test "$explicit_python" = yes; then
error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
else
error_exit "Meson not found. Use --meson=/path/to/meson"
fi
fi
else
# Meson uses its own Python interpreter to invoke other Python scripts,
# but the user wants to use the one they specified with --python.
#
# We do not want to override the distro Python interpreter (and sometimes
# cannot: for example in Homebrew /usr/bin/meson is a bash script), so
# just require --meson=git|internal together with --python.
if test "$explicit_python" = yes; then
case "$meson" in
git | internal) ;;
*) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
esac
fi
fi
if test "$meson" = git; then
git_submodules="${git_submodules} meson"
fi
case "$meson" in
git | internal)
meson="$python ${source_path}/meson/meson.py"
;;
*) meson=$(command -v "$meson") ;;
esac
# Probe for ninja
if test -z "$ninja"; then
for c in ninja ninja-build samu; do
if has $c; then
ninja=$(command -v "$c")
break
fi
done
if test -z "$ninja"; then
error_exit "Cannot find Ninja"
fi
fi
# Check that the C compiler works. Doing this here before testing
# the host CPU ensures that we had a valid CC to autodetect the
# $cpu var (and we should bail right here if that's not the case).
# It also allows the help message to be printed without a CC.
write_c_skeleton;
if compile_object ; then
: C compiler works ok
else
error_exit "\"$cc\" either does not exist or does not work"
fi
if ! compile_prog ; then
error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
fi
# Consult white-list to determine whether to enable werror
# by default. Only enable by default for git builds
if test -z "$werror" ; then
if test "$git_submodules_action" != "ignore" && \
{ test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
werror="yes"
else
werror="no"
fi
fi
if test "$targetos" = "bogus"; then
# Now that we know that we're not printing the help and that
# the compiler works (so the results of the check_defines we used
# to identify the OS are reliable), if we didn't recognize the
# host OS we should stop now.
error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
fi
# Check whether the compiler matches our minimum requirements:
cat > $TMPC << EOF
#if defined(__clang_major__) && defined(__clang_minor__)
# ifdef __apple_build_version__
# if __clang_major__ < 12 || (__clang_major__ == 12 && __clang_minor__ < 0)
# error You need at least XCode Clang v12.0 to compile QEMU
# endif
# else
# if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
# error You need at least Clang v10.0 to compile QEMU
# endif
# endif
#elif defined(__GNUC__) && defined(__GNUC_MINOR__)
# if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
# error You need at least GCC v7.4.0 to compile QEMU
# endif
#else
# error You either need GCC or Clang to compiler QEMU
#endif
int main (void) { return 0; }
EOF
if ! compile_prog "" "" ; then
error_exit "You need at least GCC v7.4 or Clang v10.0 (or XCode Clang v12.0)"
fi
# Accumulate -Wfoo and -Wno-bar separately.
# We will list all of the enable flags first, and the disable flags second.
# Note that we do not add -Werror, because that would enable it for all
# configure tests. If a configure test failed due to -Werror this would
# just silently disable some features, so it's too error prone.
warn_flags=
add_to warn_flags -Wundef
add_to warn_flags -Wwrite-strings
add_to warn_flags -Wmissing-prototypes
add_to warn_flags -Wstrict-prototypes
add_to warn_flags -Wredundant-decls
add_to warn_flags -Wold-style-declaration
add_to warn_flags -Wold-style-definition
add_to warn_flags -Wtype-limits
add_to warn_flags -Wformat-security
add_to warn_flags -Wformat-y2k
add_to warn_flags -Winit-self
add_to warn_flags -Wignored-qualifiers
add_to warn_flags -Wempty-body
add_to warn_flags -Wnested-externs
add_to warn_flags -Wendif-labels
add_to warn_flags -Wexpansion-to-defined
add_to warn_flags -Wimplicit-fallthrough=2
add_to warn_flags -Wmissing-format-attribute
if test "$targetos" != "darwin"; then
add_to warn_flags -Wthread-safety
fi
nowarn_flags=
add_to nowarn_flags -Wno-initializer-overrides
add_to nowarn_flags -Wno-missing-include-dirs
add_to nowarn_flags -Wno-shift-negative-value
add_to nowarn_flags -Wno-string-plus-int
add_to nowarn_flags -Wno-typedef-redefinition
add_to nowarn_flags -Wno-tautological-type-limit-compare
add_to nowarn_flags -Wno-psabi
add_to nowarn_flags -Wno-gnu-variable-sized-type-not-at-end
gcc_flags="$warn_flags $nowarn_flags"
cc_has_warning_flag() {
write_c_skeleton;
# Use the positive sense of the flag when testing for -Wno-wombat
# support (gcc will happily accept the -Wno- form of unknown
# warning options).
optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
compile_prog "-Werror $optflag" ""
}
objcc_has_warning_flag() {
cat > $TMPM <<EOF
int main(void) { return 0; }
EOF
# Use the positive sense of the flag when testing for -Wno-wombat
# support (gcc will happily accept the -Wno- form of unknown
# warning options).
optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
do_objc -Werror $optflag \
$OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
-o $TMPE $TMPM $QEMU_LDFLAGS
}
for flag in $gcc_flags; do
if cc_has_warning_flag $flag ; then
QEMU_CFLAGS="$QEMU_CFLAGS $flag"
fi
if objcc_has_warning_flag $flag ; then
QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
fi
done
if test "$stack_protector" != "no"; then
cat > $TMPC << EOF
int main(int argc, char *argv[])
{
char arr[64], *p = arr, *c = argv[argc - 1];
while (*c) {
*p++ = *c++;
}
return 0;
}
EOF
gcc_flags="-fstack-protector-strong -fstack-protector-all"
sp_on=0
for flag in $gcc_flags; do
# We need to check both a compile and a link, since some compiler
# setups fail only on a .c->.o compile and some only at link time
if compile_object "-Werror $flag" &&
compile_prog "-Werror $flag" ""; then
QEMU_CFLAGS="$QEMU_CFLAGS $flag"
QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
sp_on=1
break
fi
done
if test "$stack_protector" = yes; then
if test $sp_on = 0; then
error_exit "Stack protector not supported"
fi
fi
fi
# Our module code doesn't support Windows
if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
error_exit "Modules are not available for Windows"
fi
# Static linking is not possible with plugins, modules or PIE
if test "$static" = "yes" ; then
if test "$modules" = "yes" ; then
error_exit "static and modules are mutually incompatible"
fi
if test "$plugins" = "yes"; then
error_exit "static and plugins are mutually incompatible"
else
plugins="no"
fi
fi
test "$plugins" = "" && plugins=yes
cat > $TMPC << EOF
#ifdef __linux__
# define THREAD __thread
#else
# define THREAD
#endif
static THREAD int tls_var;
int main(void) { return tls_var; }
EOF
# Meson currently only handles pie as a boolean for now so if we have
# explicitly disabled PIE we need to extend our cflags because it wont.
if test "$static" = "yes"; then
if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
pie="yes"
elif test "$pie" = "yes"; then
error_exit "-static-pie not available due to missing toolchain support"
else
pie="no"
QEMU_CFLAGS="-fno-pie $QEMU_CFLAGS"
fi
elif test "$pie" = "no"; then
if compile_prog "-Werror -fno-pie" "-no-pie"; then
CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS"
CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS"
QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
fi
elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
pie="yes"
elif test "$pie" = "yes"; then
error_exit "PIE not available due to missing toolchain support"
else
echo "Disabling PIE due to missing toolchain support"
pie="no"
fi
##########################################
# __sync_fetch_and_and requires at least -march=i486. Many toolchains
# use i686 as default anyway, but for those that don't, an explicit
# specification is necessary
if test "$cpu" = "i386"; then
cat > $TMPC << EOF
static int sfaa(int *ptr)
{
return __sync_fetch_and_and(ptr, 0);
}
int main(void)
{
int val = 42;
val = __sync_val_compare_and_swap(&val, 0, 1);
sfaa(&val);
return val;
}
EOF
if ! compile_prog "" "" ; then
QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
fi
fi
if test -z "${target_list+xxx}" ; then
default_targets=yes
for target in $default_target_list; do
target_list="$target_list $target"
done
target_list="${target_list# }"
else
default_targets=no
target_list=$(echo "$target_list" | sed -e 's/,/ /g')
for target in $target_list; do
# Check that we recognised the target name; this allows a more
# friendly error message than if we let it fall through.
case " $default_target_list " in
*" $target "*)
;;
*)
error_exit "Unknown target name '$target'"
;;
esac
done
fi
# see if system emulation was really requested
case " $target_list " in
*"-softmmu "*) softmmu=yes
;;
*) softmmu=no
;;
esac
if test "$tcg" = "auto"; then
if test -z "$target_list"; then
tcg="disabled"
else
tcg="enabled"
fi
fi
if test "$tcg" = "enabled"; then
git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
fi
##########################################
# big/little endian test
cat > $TMPC << EOF
#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
# error LITTLE
#endif
int main(void) { return 0; }
EOF
if ! compile_prog ; then
bigendian="no"
else
cat > $TMPC << EOF
#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
# error BIG
#endif
int main(void) { return 0; }
EOF
if ! compile_prog ; then
bigendian="yes"
else
echo big/little test failed
exit 1
fi
fi
##########################################
# pkg-config probe
if ! has "$pkg_config_exe"; then
error_exit "pkg-config binary '$pkg_config_exe' not found"
fi
##########################################
# glib support probe
# When bumping glib_req_ver, please check also whether we should increase
# the _WIN32_WINNT setting in osdep.h according to the value from glib
glib_req_ver=2.56
glib_modules=gthread-2.0
if test "$modules" = yes; then
glib_modules="$glib_modules gmodule-export-2.0"
elif test "$plugins" = "yes"; then
glib_modules="$glib_modules gmodule-no-export-2.0"
fi
for i in $glib_modules; do
if $pkg_config --atleast-version=$glib_req_ver $i; then
glib_cflags=$($pkg_config --cflags $i)
glib_libs=$($pkg_config --libs $i)
else
error_exit "glib-$glib_req_ver $i is required to compile QEMU"
fi
done
# Check whether glib has gslice, which we have to avoid for correctness.
# TODO: remove this check and the corresponding workaround (qtree) when
# the minimum supported glib is >= $glib_dropped_gslice_version.
glib_dropped_gslice_version=2.75.3
for i in $glib_modules; do
if ! $pkg_config --atleast-version=$glib_dropped_gslice_version $i; then
glib_has_gslice="yes"
break
fi
done
glib_bindir="$($pkg_config --variable=bindir glib-2.0)"
if test -z "$glib_bindir" ; then
glib_bindir="$($pkg_config --variable=prefix glib-2.0)"/bin
fi
# This workaround is required due to a bug in pkg-config file for glib as it
# doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
if test "$static" = yes && test "$mingw32" = yes; then
glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
fi
# Sanity check that the current size_t matches the
# size that glib thinks it should be. This catches
# problems on multi-arch where people try to build
# 32-bit QEMU while pointing at 64-bit glib headers
cat > $TMPC <<EOF
#include <glib.h>
#include <unistd.h>
#define QEMU_BUILD_BUG_ON(x) \
typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
int main(void) {
QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
return 0;
}
EOF
if ! compile_prog "$glib_cflags" "$glib_libs" ; then
error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
"You probably need to set PKG_CONFIG_LIBDIR"\
"to point to the right pkg-config files for your"\
"build target"
fi
# Silence clang warnings triggered by glib < 2.57.2
cat > $TMPC << EOF
#include <glib.h>
typedef struct Foo {
int i;
} Foo;
static void foo_free(Foo *f)
{
g_free(f);
}
G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
int main(void) { return 0; }
EOF
if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
if cc_has_warning_flag "-Wno-unused-function"; then
glib_cflags="$glib_cflags -Wno-unused-function"
CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
fi
fi
##########################################
# fdt probe
case "$fdt" in
auto | enabled | internal)
# Simpler to always update submodule, even if not needed.
git_submodules="${git_submodules} dtc"
;;
esac
##########################################
# check and set a backend for coroutine
# We prefer ucontext, but it's not always possible. The fallback
# is sigcontext. On Windows the only valid backend is the Windows
# specific one.
ucontext_works=no
if test "$darwin" != "yes"; then
cat > $TMPC << EOF
#include <ucontext.h>
#ifdef __stub_makecontext
#error Ignoring glibc stub makecontext which will always fail
#endif
int main(void) { makecontext(0, 0, 0); return 0; }
EOF
if compile_prog "" "" ; then
ucontext_works=yes
fi
fi
if test "$coroutine" = ""; then
if test "$mingw32" = "yes"; then
coroutine=win32
elif test "$ucontext_works" = "yes"; then
coroutine=ucontext
else
coroutine=sigaltstack
fi
else
case $coroutine in
windows)
if test "$mingw32" != "yes"; then
error_exit "'windows' coroutine backend only valid for Windows"
fi
# Unfortunately the user visible backend name doesn't match the
# coroutine-*.c filename for this case, so we have to adjust it here.
coroutine=win32
;;
ucontext)
if test "$ucontext_works" != "yes"; then
error_exit "'ucontext' backend requested but makecontext not available"
fi
;;
sigaltstack)
if test "$mingw32" = "yes"; then
error_exit "only the 'windows' coroutine backend is valid for Windows"
fi
;;
*)
error_exit "unknown coroutine backend $coroutine"
;;
esac
fi
##################################################
# SafeStack
if test "$safe_stack" = "yes"; then
cat > $TMPC << EOF
int main(void)
{
#if ! __has_feature(safe_stack)
#error SafeStack Disabled
#endif
return 0;
}
EOF
flag="-fsanitize=safe-stack"
# Check that safe-stack is supported and enabled.
if compile_prog "-Werror $flag" "$flag"; then
# Flag needed both at compilation and at linking
QEMU_CFLAGS="$QEMU_CFLAGS $flag"
QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
else
error_exit "SafeStack not supported by your compiler"
fi
if test "$coroutine" != "ucontext"; then
error_exit "SafeStack is only supported by the coroutine backend ucontext"
fi
else
cat > $TMPC << EOF
int main(void)
{
#if defined(__has_feature)
#if __has_feature(safe_stack)
#error SafeStack Enabled
#endif
#endif
return 0;
}
EOF
if test "$safe_stack" = "no"; then
# Make sure that safe-stack is disabled
if ! compile_prog "-Werror" ""; then
# SafeStack was already enabled, try to explicitly remove the feature
flag="-fno-sanitize=safe-stack"
if ! compile_prog "-Werror $flag" "$flag"; then
error_exit "Configure cannot disable SafeStack"
fi
QEMU_CFLAGS="$QEMU_CFLAGS $flag"
QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
fi
else # "$safe_stack" = ""
# Set safe_stack to yes or no based on pre-existing flags
if compile_prog "-Werror" ""; then
safe_stack="no"
else
safe_stack="yes"
if test "$coroutine" != "ucontext"; then
error_exit "SafeStack is only supported by the coroutine backend ucontext"
fi
fi
fi
fi
########################################
# check if ccache is interfering with
# semantic analysis of macros
unset CCACHE_CPP2
ccache_cpp2=no
cat > $TMPC << EOF
static const int Z = 1;
#define fn() ({ Z; })
#define TAUT(X) ((X) == Z)
#define PAREN(X, Y) (X == Y)
#define ID(X) (X)
int main(void)
{
int x = 0, y = 0;
x = ID(x);
x = fn();
fn();
if (PAREN(x, y)) return 0;
if (TAUT(Z)) return 0;
return 0;
}
EOF
if ! compile_object "-Werror"; then
ccache_cpp2=yes
fi
#################################################
# clang does not support glibc + FORTIFY_SOURCE.
if test "$fortify_source" != "no"; then
if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
fortify_source="no";
elif test -n "$cxx" && has $cxx &&
echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
fortify_source="no";
else
fortify_source="yes"
fi
fi
##########################################
# checks for sanitizers
have_asan=no
have_ubsan=no
have_asan_iface_h=no
have_asan_iface_fiber=no
if test "$sanitizers" = "yes" ; then
write_c_skeleton
if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
have_asan=yes
fi
# we could use a simple skeleton for flags checks, but this also
# detect the static linking issue of ubsan, see also:
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
cat > $TMPC << EOF
int main(int argc, char **argv)
{
return argc + 1;
}
EOF
if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
have_ubsan=yes
fi
if check_include "sanitizer/asan_interface.h" ; then
have_asan_iface_h=yes
fi
cat > $TMPC << EOF
#include <sanitizer/asan_interface.h>
int main(void) {
__sanitizer_start_switch_fiber(0, 0, 0);
return 0;
}
EOF
if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
have_asan_iface_fiber=yes
fi
fi
# Thread sanitizer is, for now, much noisier than the other sanitizers;
# keep it separate until that is not the case.
if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
error_exit "TSAN is not supported with other sanitiziers."
fi
have_tsan=no
have_tsan_iface_fiber=no
if test "$tsan" = "yes" ; then
write_c_skeleton
if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
have_tsan=yes
fi
cat > $TMPC << EOF
#include <sanitizer/tsan_interface.h>
int main(void) {
__tsan_create_fiber(0);
return 0;
}
EOF
if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
have_tsan_iface_fiber=yes
fi
fi
##########################################
# functions to probe cross compilers
container="no"
runc=""
if test $use_containers = "yes" && (has "docker" || has "podman"); then
case $($python "$source_path"/tests/docker/docker.py probe) in
*docker) container=docker ;;
podman) container=podman ;;
no) container=no ;;
esac
if test "$container" != "no"; then
docker_py="$python $source_path/tests/docker/docker.py --engine $container"
runc=$($python "$source_path"/tests/docker/docker.py probe)
fi
fi
# cross compilers defaults, can be overridden with --cross-cc-ARCH
: ${cross_prefix_aarch64="aarch64-linux-gnu-"}
: ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
: ${cross_prefix_alpha="alpha-linux-gnu-"}
: ${cross_prefix_arm="arm-linux-gnueabihf-"}
: ${cross_prefix_armeb="$cross_prefix_arm"}
: ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
: ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
: ${cross_prefix_hppa="hppa-linux-gnu-"}
: ${cross_prefix_i386="i686-linux-gnu-"}
: ${cross_prefix_m68k="m68k-linux-gnu-"}
: ${cross_prefix_microblaze="microblaze-linux-musl-"}
: ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
: ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
: ${cross_prefix_mipsel="mipsel-linux-gnu-"}
: ${cross_prefix_mips="mips-linux-gnu-"}
: ${cross_prefix_nios2="nios2-linux-gnu-"}
: ${cross_prefix_ppc="powerpc-linux-gnu-"}
: ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
: ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
: ${cross_prefix_riscv64="riscv64-linux-gnu-"}
: ${cross_prefix_s390x="s390x-linux-gnu-"}
: ${cross_prefix_sh4="sh4-linux-gnu-"}
: ${cross_prefix_sparc64="sparc64-linux-gnu-"}
: ${cross_prefix_sparc="$cross_prefix_sparc64"}
: ${cross_prefix_x86_64="x86_64-linux-gnu-"}
: ${cross_cc_aarch64_be="$cross_cc_aarch64"}
: ${cross_cc_cflags_aarch64_be="-mbig-endian"}
: ${cross_cc_armeb="$cross_cc_arm"}
: ${cross_cc_cflags_armeb="-mbig-endian"}
: ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
: ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
: ${cross_cc_cflags_i386="-m32"}
: ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
: ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
: ${cross_cc_ppc64le="$cross_cc_ppc64"}
: ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
: ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
: ${cross_cc_sparc="$cross_cc_sparc64"}
: ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
: ${cross_cc_cflags_x86_64="-m64"}
compute_target_variable() {
eval "$2="
if eval test -n "\"\${cross_prefix_$1}\""; then
if eval has "\"\${cross_prefix_$1}\$3\""; then
eval "$2=\"\${cross_prefix_$1}\$3\""
fi
fi
}
have_target() {
for i; do
case " $target_list " in
*" $i "*) return 0;;
*) ;;
esac
done
return 1
}
# probe_target_compiler TARGET
#
# Look for a compiler for the given target, either native or cross.
# Set variables target_* if a compiler is found, and container_cross_*
# if a Docker-based cross-compiler image is known for the target.
# Set got_cross_cc to yes/no depending on whether a non-container-based
# compiler was found.
#
# If TARGET is a user-mode emulation target, also set build_static to
# "y" if static linking is possible.
#
probe_target_compiler() {
# reset all output variables
got_cross_cc=no
container_image=
container_hosts=
container_cross_cc=
container_cross_ar=
container_cross_as=
container_cross_ld=
container_cross_nm=
container_cross_objcopy=
container_cross_ranlib=
container_cross_strip=
# We shall skip configuring the target compiler if the user didn't
# bother enabling an appropriate guest. This avoids building
# extraneous firmware images and tests.
if test "${target_list#*$1}" = "$1"; then
return 1
fi
target_arch=${1%%-*}
case $target_arch in
aarch64) container_hosts="x86_64 aarch64" ;;
alpha) container_hosts=x86_64 ;;
arm) container_hosts="x86_64 aarch64" ;;
cris) container_hosts=x86_64 ;;
hexagon) container_hosts=x86_64 ;;
hppa) container_hosts=x86_64 ;;
i386) container_hosts=x86_64 ;;
loongarch64) container_hosts=x86_64 ;;
m68k) container_hosts=x86_64 ;;
microblaze) container_hosts=x86_64 ;;
mips64el) container_hosts=x86_64 ;;
mips64) container_hosts=x86_64 ;;
mipsel) container_hosts=x86_64 ;;
mips) container_hosts=x86_64 ;;
nios2) container_hosts=x86_64 ;;
ppc) container_hosts=x86_64 ;;
ppc64|ppc64le) container_hosts=x86_64 ;;
riscv64) container_hosts=x86_64 ;;
s390x) container_hosts=x86_64 ;;
sh4) container_hosts=x86_64 ;;
sparc64) container_hosts=x86_64 ;;
tricore) container_hosts=x86_64 ;;
x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
xtensa*) container_hosts=x86_64 ;;
esac
for host in $container_hosts; do
test "$container" != no || continue
test "$host" = "$cpu" || continue
case $target_arch in
aarch64)
# We don't have any bigendian build tools so we only use this for AArch64
container_image=debian-arm64-cross
container_cross_prefix=aarch64-linux-gnu-
container_cross_cc=${container_cross_prefix}gcc-10
;;
alpha)
container_image=debian-alpha-cross
container_cross_prefix=alpha-linux-gnu-
;;
arm)
# We don't have any bigendian build tools so we only use this for ARM
container_image=debian-armhf-cross
container_cross_prefix=arm-linux-gnueabihf-
;;
cris)
container_image=fedora-cris-cross
container_cross_prefix=cris-linux-gnu-
;;
hexagon)
container_image=debian-hexagon-cross
container_cross_prefix=hexagon-unknown-linux-musl-
container_cross_cc=${container_cross_prefix}clang
;;
hppa)
container_image=debian-hppa-cross
container_cross_prefix=hppa-linux-gnu-
;;
i386)
container_image=fedora-i386-cross
container_cross_prefix=
;;
loongarch64)
container_image=debian-loongarch-cross
container_cross_prefix=loongarch64-unknown-linux-gnu-
;;
m68k)
container_image=debian-m68k-cross
container_cross_prefix=m68k-linux-gnu-
;;
microblaze)
container_image=debian-microblaze-cross
container_cross_prefix=microblaze-linux-musl-
;;
mips64el)
container_image=debian-mips64el-cross
container_cross_prefix=mips64el-linux-gnuabi64-
;;
mips64)
container_image=debian-mips64-cross
container_cross_prefix=mips64-linux-gnuabi64-
;;
mipsel)
container_image=debian-mipsel-cross
container_cross_prefix=mipsel-linux-gnu-
;;
mips)
container_image=debian-mips-cross
container_cross_prefix=mips-linux-gnu-
;;
nios2)
container_image=debian-nios2-cross
container_cross_prefix=nios2-linux-gnu-
;;
ppc)
container_image=debian-powerpc-test-cross
container_cross_prefix=powerpc-linux-gnu-
container_cross_cc=${container_cross_prefix}gcc-10
;;
ppc64|ppc64le)
container_image=debian-powerpc-test-cross
container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
container_cross_cc=${container_cross_prefix}gcc-10
;;
riscv64)
container_image=debian-riscv64-test-cross
container_cross_prefix=riscv64-linux-gnu-
;;
s390x)
container_image=debian-s390x-cross
container_cross_prefix=s390x-linux-gnu-
;;
sh4)
container_image=debian-sh4-cross
container_cross_prefix=sh4-linux-gnu-
;;
sparc64)
container_image=debian-sparc64-cross
container_cross_prefix=sparc64-linux-gnu-
;;
tricore)
container_image=debian-tricore-cross
container_cross_prefix=tricore-
container_cross_as=tricore-as
container_cross_ld=tricore-ld
break
;;
x86_64)
container_image=debian-amd64-cross
container_cross_prefix=x86_64-linux-gnu-
;;
xtensa*)
container_hosts=x86_64
container_image=debian-xtensa-cross
# default to the dc232b cpu
container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
;;
esac
: ${container_cross_cc:=${container_cross_prefix}gcc}
: ${container_cross_ar:=${container_cross_prefix}ar}
: ${container_cross_as:=${container_cross_prefix}as}
: ${container_cross_ld:=${container_cross_prefix}ld}
: ${container_cross_nm:=${container_cross_prefix}nm}
: ${container_cross_objcopy:=${container_cross_prefix}objcopy}
: ${container_cross_ranlib:=${container_cross_prefix}ranlib}
: ${container_cross_strip:=${container_cross_prefix}strip}
done
try=cross
case "$target_arch:$cpu" in
aarch64_be:aarch64 | \
armeb:arm | \
i386:x86_64 | \
mips*:mips64 | \
ppc*:ppc64 | \
sparc:sparc64 | \
"$cpu:$cpu")
try='native cross' ;;
esac
eval "target_cflags=\${cross_cc_cflags_$target_arch}"
for thistry in $try; do
case $thistry in
native)
target_cc=$cc
target_ccas=$ccas
target_ar=$ar
target_as=$as
target_ld=$ld
target_nm=$nm
target_objcopy=$objcopy
target_ranlib=$ranlib
target_strip=$strip
;;
cross)
target_cc=
if eval test -n "\"\${cross_cc_$target_arch}\""; then
if eval has "\"\${cross_cc_$target_arch}\""; then
eval "target_cc=\"\${cross_cc_$target_arch}\""
fi
else
compute_target_variable $target_arch target_cc gcc
fi
target_ccas=$target_cc
compute_target_variable $target_arch target_ar ar
compute_target_variable $target_arch target_as as
compute_target_variable $target_arch target_ld ld
compute_target_variable $target_arch target_nm nm
compute_target_variable $target_arch target_objcopy objcopy
compute_target_variable $target_arch target_ranlib ranlib
compute_target_variable $target_arch target_strip strip
;;
esac
if test -n "$target_cc"; then
case $target_arch in
i386|x86_64)
if $target_cc --version | grep -qi "clang"; then
continue
fi
;;
esac
elif test -n "$target_as" && test -n "$target_ld"; then
# Special handling for assembler only targets
case $target in
tricore-softmmu)
build_static=
got_cross_cc=yes
break
;;
*)
continue
;;
esac
else
continue
fi
write_c_skeleton
case $1 in
*-softmmu)
if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
got_cross_cc=yes
break
fi
;;
*)
if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
build_static=y
got_cross_cc=yes
break
fi
if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
build_static=
got_cross_cc=yes
break
fi
;;
esac
done
if test $got_cross_cc != yes; then
build_static=
target_cc=
target_ccas=
target_ar=
target_as=
target_ld=
target_nm=
target_objcopy=
target_ranlib=
target_strip=
fi
test -n "$target_cc"
}
write_target_makefile() {
echo "EXTRA_CFLAGS=$target_cflags"
if test -z "$target_cc" && test -z "$target_as"; then
test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
echo "$1: docker-image-$container_image" >> Makefile.prereqs
if test -n "$container_cross_cc"; then
echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
fi
echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
else
if test -n "$target_cc"; then
echo "CC=$target_cc"
echo "CCAS=$target_ccas"
fi
if test -n "$target_ar"; then
echo "AR=$target_ar"
fi
if test -n "$target_as"; then
echo "AS=$target_as"
fi
if test -n "$target_ld"; then
echo "LD=$target_ld"
fi
if test -n "$target_nm"; then
echo "NM=$target_nm"
fi
if test -n "$target_objcopy"; then
echo "OBJCOPY=$target_objcopy"
fi
if test -n "$target_ranlib"; then
echo "RANLIB=$target_ranlib"
fi
if test -n "$target_strip"; then
echo "STRIP=$target_strip"
fi
fi
}
##########################################
# check for vfio_user_server
case "$vfio_user_server" in
enabled )
if test "$git_submodules_action" != "ignore"; then
git_submodules="${git_submodules} subprojects/libvfio-user"
fi
;;
esac
##########################################
# End of CC checks
# After here, no more $cc or $ld runs
write_c_skeleton
if test "$fortify_source" = "yes" ; then
QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
fi
if test "$have_asan" = "yes"; then
QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
if test "$have_asan_iface_h" = "no" ; then
echo "ASAN build enabled, but ASAN header missing." \
"Without code annotation, the report may be inferior."
elif test "$have_asan_iface_fiber" = "no" ; then
echo "ASAN build enabled, but ASAN header is too old." \
"Without code annotation, the report may be inferior."
fi
fi
if test "$have_tsan" = "yes" ; then
if test "$have_tsan_iface_fiber" = "yes" ; then
QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
else
error_exit "Cannot enable TSAN due to missing fiber annotation interface."
fi
elif test "$tsan" = "yes" ; then
error_exit "Cannot enable TSAN due to missing sanitize thread interface."
fi
if test "$have_ubsan" = "yes"; then
QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
fi
#######################################
# cross-compiled firmware targets
# Set up build tree symlinks that point back into the source tree
# (these can be both files and directories).
# Caution: avoid adding files or directories here using wildcards. This
# will result in problems later if a new file matching the wildcard is
# added to the source tree -- nothing will cause configure to be rerun
# so the build tree will be missing the link back to the new file, and
# tests might fail. Prefer to keep the relevant files in their own
# directory and symlink the directory instead.
LINKS="Makefile"
LINKS="$LINKS docs/config"
LINKS="$LINKS pc-bios/optionrom/Makefile"
LINKS="$LINKS pc-bios/s390-ccw/Makefile"
LINKS="$LINKS pc-bios/vof/Makefile"
LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
LINKS="$LINKS tests/avocado tests/data"
LINKS="$LINKS tests/qemu-iotests/check"
LINKS="$LINKS python"
LINKS="$LINKS contrib/plugins/Makefile "
for f in $LINKS ; do
if [ -e "$source_path/$f" ]; then
mkdir -p "$(dirname ./"$f")"
symlink "$source_path/$f" "$f"
fi
done
echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
# Mac OS X ships with a broken assembler
roms=
if have_target i386-softmmu x86_64-softmmu && \
test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
test "$targetos" != "haiku" && \
probe_target_compiler i386-softmmu; then
roms="pc-bios/optionrom"
config_mak=pc-bios/optionrom/config.mak
echo "# Automatically generated by configure - do not modify" > $config_mak
echo "TOPSRC_DIR=$source_path" >> $config_mak
write_target_makefile >> $config_mak
fi
if have_target ppc-softmmu ppc64-softmmu && \
probe_target_compiler ppc-softmmu; then
roms="$roms pc-bios/vof"
config_mak=pc-bios/vof/config.mak
echo "# Automatically generated by configure - do not modify" > $config_mak
echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
write_target_makefile >> $config_mak
fi
# Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
# (which is the lowest architecture level that Clang supports)
if have_target s390x-softmmu && probe_target_compiler s390x-softmmu; then
write_c_skeleton
do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
has_z900=$?
if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
if [ $has_z900 != 0 ]; then
echo "WARNING: Your compiler does not support the z900!"
echo " The s390-ccw bios will only work with guest CPUs >= z10."
fi
roms="$roms pc-bios/s390-ccw"
config_mak=pc-bios/s390-ccw/config-host.mak
echo "# Automatically generated by configure - do not modify" > $config_mak
echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
write_target_makefile >> $config_mak
# SLOF is required for building the s390-ccw firmware on s390x,
# since it is using the libnet code from SLOF for network booting.
git_submodules="${git_submodules} roms/SLOF"
fi
fi
#######################################
# generate config-host.mak
if ! (GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
exit 1
fi
config_host_mak="config-host.mak"
echo "# Automatically generated by configure - do not modify" > $config_host_mak
echo >> $config_host_mak
echo all: >> $config_host_mak
echo "GIT=$git" >> $config_host_mak
echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
if test "$debug_tcg" = "yes" ; then
echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
fi
if test "$mingw32" = "yes" ; then
echo "CONFIG_WIN32=y" >> $config_host_mak
echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
else
echo "CONFIG_POSIX=y" >> $config_host_mak
fi
if test "$linux" = "yes" ; then
echo "CONFIG_LINUX=y" >> $config_host_mak
fi
if test "$darwin" = "yes" ; then
echo "CONFIG_DARWIN=y" >> $config_host_mak
fi
if test "$solaris" = "yes" ; then
echo "CONFIG_SOLARIS=y" >> $config_host_mak
fi
if test "$static" = "yes" ; then
echo "CONFIG_STATIC=y" >> $config_host_mak
fi
echo "SRC_PATH=$source_path" >> $config_host_mak
echo "TARGET_DIRS=$target_list" >> $config_host_mak
if test "$modules" = "yes"; then
echo "CONFIG_MODULES=y" >> $config_host_mak
fi
# XXX: suppress that
if [ "$bsd" = "yes" ] ; then
echo "CONFIG_BSD=y" >> $config_host_mak
fi
echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
if test "$have_asan_iface_fiber" = "yes" ; then
echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
fi
if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
echo "CONFIG_TSAN=y" >> $config_host_mak
fi
if test "$plugins" = "yes" ; then
echo "CONFIG_PLUGIN=y" >> $config_host_mak
fi
if test -n "$gdb_bin"; then
gdb_version=$($gdb_bin --version | head -n 1)
if version_ge ${gdb_version##* } 9.1; then
echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
gdb_arches=$("$source_path/scripts/probe-gdb-support.py" $gdb_bin)
else
gdb_bin=""
fi
fi
if test "$container" != no; then
echo "ENGINE=$container" >> $config_host_mak
echo "RUNC=$runc" >> $config_host_mak
fi
echo "ROMS=$roms" >> $config_host_mak
echo "MAKE=$make" >> $config_host_mak
echo "PYTHON=$python" >> $config_host_mak
echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
echo "MESON=$meson" >> $config_host_mak
echo "NINJA=$ninja" >> $config_host_mak
echo "CC=$cc" >> $config_host_mak
echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
echo "GLIB_BINDIR=$glib_bindir" >> $config_host_mak
echo "GLIB_VERSION=$($pkg_config --modversion glib-2.0)" >> $config_host_mak
if test "$glib_has_gslice" = "yes" ; then
echo "HAVE_GLIB_WITH_SLICE_ALLOCATOR=y" >> $config_host_mak
fi
echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
echo "EXESUF=$EXESUF" >> $config_host_mak
# use included Linux headers
if test "$linux" = "yes" ; then
mkdir -p linux-headers
case "$cpu" in
i386|x86_64)
linux_arch=x86
;;
ppc|ppc64)
linux_arch=powerpc
;;
s390x)
linux_arch=s390
;;
aarch64)
linux_arch=arm64
;;
loongarch*)
linux_arch=loongarch
;;
mips64)
linux_arch=mips
;;
*)
# For most CPUs the kernel architecture name and QEMU CPU name match.
linux_arch="$cpu"
;;
esac
# For non-KVM architectures we will not have asm headers
if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
fi
fi
for target in $target_list; do
target_dir="$target"
target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
mkdir -p "$target_dir"
case $target in
*-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
*) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
esac
done
if test "$default_targets" = "yes"; then
echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
fi
if test "$ccache_cpp2" = "yes"; then
echo "export CCACHE_CPP2=y" >> $config_host_mak
fi
if test "$safe_stack" = "yes"; then
echo "CONFIG_SAFESTACK=y" >> $config_host_mak
fi
# tests/tcg configuration
(config_host_mak=tests/tcg/config-host.mak
mkdir -p tests/tcg
echo "# Automatically generated by configure - do not modify" > $config_host_mak
echo "SRC_PATH=$source_path" >> $config_host_mak
echo "HOST_CC=$host_cc" >> $config_host_mak
# versioned checked in the main config_host.mak above
if test -n "$gdb_bin"; then
echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
fi
if test "$plugins" = "yes" ; then
echo "CONFIG_PLUGIN=y" >> $config_host_mak
fi
tcg_tests_targets=
for target in $target_list; do
arch=${target%%-*}
case $target in
xtensa*-linux-user)
# the toolchain is not complete with headers, only build softmmu tests
continue
;;
*-softmmu)
test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
qemu="qemu-system-$arch"
;;
*-linux-user|*-bsd-user)
qemu="qemu-$arch"
;;
esac
if probe_target_compiler $target || test -n "$container_image"; then
test -n "$container_image" && build_static=y
mkdir -p "tests/tcg/$target"
config_target_mak=tests/tcg/$target/config-target.mak
ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
echo "TARGET_NAME=$arch" >> "$config_target_mak"
echo "TARGET=$target" >> "$config_target_mak"
write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
# will GDB work with these binaries?
if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
echo "HOST_GDB_SUPPORTS_ARCH=y" >> "$config_target_mak"
fi
echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
tcg_tests_targets="$tcg_tests_targets $target"
fi
done
if test "$tcg" = "enabled"; then
echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
fi
)
if test "$skip_meson" = no; then
cross="config-meson.cross.new"
meson_quote() {
test $# = 0 && return
echo "'$(echo $* | sed "s/ /','/g")'"
}
echo "# Automatically generated by configure - do not modify" > $cross
echo "[properties]" >> $cross
# unroll any custom device configs
for a in $device_archs; do
eval "c=\$devices_${a}"
echo "${a}-softmmu = '$c'" >> $cross
done
echo "[built-in options]" >> $cross
echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
echo "[binaries]" >> $cross
echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
echo "ar = [$(meson_quote $ar)]" >> $cross
echo "nm = [$(meson_quote $nm)]" >> $cross
echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
if has $sdl2_config; then
echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
fi
echo "strip = [$(meson_quote $strip)]" >> $cross
echo "widl = [$(meson_quote $widl)]" >> $cross
echo "windres = [$(meson_quote $windres)]" >> $cross
echo "windmc = [$(meson_quote $windmc)]" >> $cross
if test "$cross_compile" = "yes"; then
cross_arg="--cross-file config-meson.cross"
echo "[host_machine]" >> $cross
echo "system = '$targetos'" >> $cross
case "$cpu" in
i386)
echo "cpu_family = 'x86'" >> $cross
;;
*)
echo "cpu_family = '$cpu'" >> $cross
;;
esac
echo "cpu = '$cpu'" >> $cross
if test "$bigendian" = "yes" ; then
echo "endian = 'big'" >> $cross
else
echo "endian = 'little'" >> $cross
fi
else
cross_arg="--native-file config-meson.cross"
fi
mv $cross config-meson.cross
rm -rf meson-private meson-info meson-logs
# Prevent meson from automatically downloading wrapped subprojects when missing.
# You can use 'meson subprojects download' before running configure.
meson_option_add "--wrap-mode=nodownload"
# Built-in options
test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
test "$default_feature" = no && meson_option_add -Dauto_features=disabled
test "$pie" = no && meson_option_add -Db_pie=false
test "$werror" = yes && meson_option_add -Dwerror=true
# QEMU options
test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server"
run_meson() {
NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
}
eval run_meson $meson_options
if test "$?" -ne 0 ; then
error_exit "meson setup failed"
fi
fi
# Save the configure command line for later reuse.
cat <<EOD >config.status
#!/bin/sh
# Generated by configure.
# Run this file to recreate the current configuration.
# Compiler output produced by configure, useful for debugging
# configure, is in config.log if it exists.
EOD
preserve_env() {
envname=$1
eval envval=\$$envname
if test -n "$envval"
then
echo "$envname='$envval'" >> config.status
echo "export $envname" >> config.status
else
echo "unset $envname" >> config.status
fi
}
# Preserve various env variables that influence what
# features/build target configure will detect
preserve_env AR
preserve_env AS
preserve_env CC
preserve_env CFLAGS
preserve_env CXX
preserve_env CXXFLAGS
preserve_env LD
preserve_env LDFLAGS
preserve_env LD_LIBRARY_PATH
preserve_env MAKE
preserve_env NM
preserve_env OBJCFLAGS
preserve_env OBJCOPY
preserve_env PATH
preserve_env PKG_CONFIG
preserve_env PKG_CONFIG_LIBDIR
preserve_env PKG_CONFIG_PATH
preserve_env PYTHON
preserve_env QEMU_GA_MANUFACTURER
preserve_env QEMU_GA_DISTRO
preserve_env QEMU_GA_VERSION
preserve_env SDL2_CONFIG
preserve_env SMBD
preserve_env STRIP
preserve_env WIDL
preserve_env WINDRES
preserve_env WINDMC
printf "exec" >>config.status
for i in "$0" "$@"; do
test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
done
echo ' "$@"' >>config.status
chmod +x config.status
rm -r "$TMPDIR1"