fi
fi
- mkdir build
- touch $MARKER
+ if ! mkdir build || ! touch $MARKER
+ then
+ echo "ERROR: Could not create ./build directory. Check the permissions on"
+ echo "your source directory, or try doing an out-of-tree build."
+ exit 1
+ fi
cat > GNUmakefile <<'EOF'
# This file is auto-generated by configure to support in-source tree
safe_stack=""
use_containers="yes"
gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
+gdb_arches=""
+glib_has_gslice="no"
if test -e "$source_path/.git"
then
;;
--cxx=*) CXX="$optarg"
;;
+ --objcc=*) objcc="$optarg"
+ ;;
--cpu=*) cpu="$optarg"
;;
--extra-cflags=*)
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}"
: ${make=${MAKE-make}}
-# We prefer python 3.x. A bare 'python' is traditionally
-# python 2.x, but some distros have it as python 3.x, so
-# we check that too
+
+check_py_version() {
+ # We require python >= 3.6.
+ # NB: a True python conditional creates a non-zero return code (Failure)
+ "$1" -c 'import sys; sys.exit(sys.version_info < (3,6))'
+}
+
python=
-explicit_python=no
-for binary in "${PYTHON-python3}" python
-do
- if has "$binary"
- then
- python=$(command -v "$binary")
- break
+first_python=
+if test -z "${PYTHON}"; then
+ # 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")
+ if check_py_version "$python"; then
+ # This one is good.
+ first_python=
+ else
+ first_python=$first_python
fi
-done
-
+fi
# Check for ancillary tools used in testing
genisoimage=
fi
done
-# Default objcc to clang if available, otherwise use CC
-if has clang; then
- objcc=clang
-else
- objcc="$cc"
-fi
-
if test "$mingw32" = "yes" ; then
EXESUF=".exe"
# MinGW needs -mthreads for TLS and macro _MT.
;;
--cxx=*)
;;
- --objcc=*) objcc="$optarg"
+ --objcc=*)
;;
--make=*) make="$optarg"
;;
--install=*)
;;
- --python=*) python="$optarg" ; explicit_python=yes
+ --python=*) python="$optarg"
;;
--skip-meson) skip_meson=yes
;;
--enable-debug)
# Enable debugging options that aren't excessively noisy
debug_tcg="yes"
+ meson_option_parse --enable-debug-graph-lock ""
meson_option_parse --enable-debug-mutex ""
meson_option_add -Doptimization=0
fortify_source="no"
debug-tcg TCG debugging (default is disabled)
debug-info debugging information
safe-stack SafeStack Stack Smash Protection. Depends on
- clang/llvm >= 3.7 and requires coroutine backend ucontext.
+ clang/llvm and requires coroutine backend ucontext.
NOTE: The object files are built at the place where configure is launched
EOF
if test -z "$python"
then
- error_exit "Python not found. Use --python=/path/to/python"
+ # If first_python is set, there was a binary somewhere even though
+ # it was not suitable. Use it for the error message.
+ if test -n "$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
-# Note that if the Python conditional here evaluates True we will exit
-# with status 1 which is a shell 'false' value.
-if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
+if ! check_py_version "$python"; then
error_exit "Cannot use '$python', Python >= 3.6 is required." \
"Use --python=/path/to/python to specify a supported Python."
fi
+# Resolve PATH
+python="$(command -v "$python")"
+explicit_python=yes
+
+# Create a Python virtual environment using our configured python.
+# The stdout of this script will be the location of a symlink that
+# points to the configured Python.
+# Entry point scripts for pip, meson, and sphinx are generated if those
+# packages are present.
+
+# Defaults assumed for now:
+# - venv is cleared if it exists already;
+# - venv is allowed to use system packages;
+# - all setup is performed **offline**;
+# - No packages are installed by default;
+# - pip is not installed into the venv when possible,
+# but ensurepip is called as a fallback when necessary.
+
+echo "python determined to be '$python'"
+echo "python version: $($python --version)"
+
+python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
+if test "$?" -ne 0 ; then
+ error_exit "python venv creation failed"
+fi
+
# Suppress writing compiled files
python="$python -B"
+has_meson() {
+ local python_dir=$(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 "$(meson --version)" 0.61.5; then
+ if test "$explicit_python" = no && has_meson && version_ge "$(meson --version)" 0.61.5; then
meson=meson
elif test "$git_submodules_action" != 'ignore' ; then
meson=git
cat > $TMPC << EOF
#if defined(__clang_major__) && defined(__clang_minor__)
# ifdef __apple_build_version__
-# if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
-# error You need at least XCode Clang v10.0 to compile QEMU
+# if __clang_major__ < 12 || (__clang_major__ == 12 && __clang_minor__ < 0)
+# error You need at least XCode Clang v12.0 to compile QEMU
# endif
# else
-# if __clang_major__ < 6 || (__clang_major__ == 6 && __clang_minor__ < 0)
-# error You need at least Clang v6.0 to compile QEMU
+# if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
+# error You need at least Clang v10.0 to compile QEMU
# endif
# endif
#elif defined(__GNUC__) && defined(__GNUC_MINOR__)
int main (void) { return 0; }
EOF
if ! compile_prog "" "" ; then
- error_exit "You need at least GCC v7.4 or Clang v6.0 (or XCode Clang v10.0)"
+ error_exit "You need at least GCC v7.4 or Clang v10.0 (or XCode Clang v12.0)"
fi
# Accumulate -Wfoo and -Wno-bar separately.
add_to warn_flags -Wimplicit-fallthrough=2
add_to warn_flags -Wmissing-format-attribute
+if test "$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
fi
fi
-# Disable -Wmissing-braces on older compilers that warn even for
-# the "universal" C zero initializer {0}.
-cat > $TMPC << EOF
-struct {
- int a[2];
-} x = {0};
-EOF
-if compile_object "-Werror" "" ; then
- :
-else
- QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
-fi
-
# Our module code doesn't support Windows
if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
error_exit "Modules are not available for Windows"
error_exit "-static-pie not available due to missing toolchain support"
else
pie="no"
- QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
+ QEMU_CFLAGS="-fno-pie $QEMU_CFLAGS"
fi
elif test "$pie" = "no"; then
if compile_prog "-Werror -fno-pie" "-no-pie"; then
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
# detect the static linking issue of ubsan, see also:
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
cat > $TMPC << EOF
-#include <stdlib.h>
-int main(void) {
- void *tmp = malloc(10);
- if (tmp != NULL) {
- return *(int *)(tmp + 2);
- }
- return 1;
+int main(int argc, char **argv)
+{
+ return argc + 1;
}
EOF
if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
# functions to probe cross compilers
container="no"
+runc=""
if test $use_containers = "yes" && (has "docker" || has "podman"); then
case $($python "$source_path"/tests/docker/docker.py probe) in
*docker) container=docker ;;
esac
if test "$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
# 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"
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" $gdb_bin)
else
gdb_bin=""
fi
if test "$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" >> $config_host_mak
echo "GLIB_LIBS=$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" >> $config_host_mak
write_target_makefile "build-tcg-tests-$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 $target"
fi
done
-echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak)
+
+if test "$tcg" = "enabled"; then
+ echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
+fi
+)
if test "$skip_meson" = no; then
cross="config-meson.cross.new"
rm -rf meson-private meson-info meson-logs
+ # Prevent meson from automatically downloading wrapped subprojects when missing.
+ # You can use 'meson subprojects download' before running configure.
+ meson_option_add "--wrap-mode=nodownload"
+
# Built-in options
test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
test "$default_feature" = no && meson_option_add -Dauto_features=disabled
projects / mirror_qemu.git / blobdiff