diff options
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 108 |
1 files changed, 105 insertions, 3 deletions
diff --git a/configure b/configure index ba88fd1824..8a65240d4a 100755 --- a/configure +++ b/configure @@ -307,6 +307,7 @@ audio_win_int="" libs_qga="" debug_info="yes" stack_protector="" +safe_stack="" use_containers="yes" gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb") @@ -517,6 +518,7 @@ plugins="no" fuzzing="no" rng_none="no" secret_keyring="" +libdaxctl="" supported_cpu="no" supported_os="no" @@ -1287,6 +1289,10 @@ for opt do ;; --disable-stack-protector) stack_protector="no" ;; + --enable-safe-stack) safe_stack="yes" + ;; + --disable-safe-stack) safe_stack="no" + ;; --disable-curses) curses="no" ;; --enable-curses) curses="yes" @@ -1621,6 +1627,10 @@ for opt do ;; --disable-keyring) secret_keyring="no" ;; + --enable-libdaxctl) libdaxctl=yes + ;; + --disable-libdaxctl) libdaxctl=no + ;; *) echo "ERROR: unknown option $opt" echo "Try '$0 --help' for more information" @@ -1829,6 +1839,8 @@ disabled with --disable-FEATURE, default is enabled if available: debug-tcg TCG debugging (default is disabled) debug-info debugging information sparse sparse checker + safe-stack SafeStack Stack Smash Protection. Depends on + clang/llvm >= 3.7 and requires coroutine backend ucontext. gnutls GNUTLS cryptography support nettle nettle cryptography support @@ -1920,6 +1932,7 @@ disabled with --disable-FEATURE, default is enabled if available: libpmem libpmem support xkbcommon xkbcommon support rng-none dummy RNG, avoid using /dev/(u)random and getrandom() + libdaxctl libdaxctl support NOTE: The object files are built at the place where configure is launched EOF @@ -5573,6 +5586,67 @@ if test "$debug_stack_usage" = "yes"; then fi fi +################################################## +# SafeStack + + +if test "$safe_stack" = "yes"; then +cat > $TMPC << EOF +int main(int argc, char *argv[]) +{ +#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 > $TMPC << EOF +int main(int argc, char *argv[]) +{ +#if defined(__has_feature) +#if __has_feature(safe_stack) +#error SafeStack Enabled +#endif +#endif + return 0; +} +EOF +if test "$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 "$coroutine" != "ucontext"; then + error_exit "SafeStack is only supported by the coroutine backend ucontext" + fi + fi +fi +fi ########################################## # check if we have open_by_handle_at @@ -6293,6 +6367,24 @@ if test "$libpmem" != "no"; then fi ########################################## +# check for libdaxctl + +if test "$libdaxctl" != "no"; then + if $pkg_config --atleast-version=57 "libdaxctl"; then + libdaxctl="yes" + libdaxctl_libs=$($pkg_config --libs libdaxctl) + libdaxctl_cflags=$($pkg_config --cflags libdaxctl) + libs_softmmu="$libs_softmmu $libdaxctl_libs" + QEMU_CFLAGS="$QEMU_CFLAGS $libdaxctl_cflags" + else + if test "$libdaxctl" = "yes" ; then + feature_not_found "libdaxctl" "Install libdaxctl" + fi + libdaxctl="no" + fi +fi + +########################################## # check for slirp # slirp is only required when building softmmu targets @@ -6765,6 +6857,7 @@ echo "sparse enabled $sparse" echo "strip binaries $strip_opt" echo "profiler $profiler" echo "static build $static" +echo "safe stack $safe_stack" if test "$darwin" = "yes" ; then echo "Cocoa support $cocoa" fi @@ -6898,6 +6991,7 @@ echo "parallels support $parallels" echo "sheepdog support $sheepdog" echo "capstone $capstone" echo "libpmem support $libpmem" +echo "libdaxctl support $libdaxctl" echo "libudev $libudev" echo "default devices $default_devices" echo "plugin support $plugins" @@ -7731,6 +7825,10 @@ if test "$libpmem" = "yes" ; then echo "CONFIG_LIBPMEM=y" >> $config_host_mak fi +if test "$libdaxctl" = "yes" ; then + echo "CONFIG_LIBDAXCTL=y" >> $config_host_mak +fi + if test "$bochs" = "yes" ; then echo "CONFIG_BOCHS=y" >> $config_host_mak fi @@ -8370,6 +8468,10 @@ if test "$ccache_cpp2" = "yes"; then echo "export CCACHE_CPP2=y" >> $config_host_mak fi +if test "$safe_stack" = "yes"; then + echo "CONFIG_SAFESTACK=y" >> $config_host_mak +fi + # If we're using a separate build tree, set it up now. # DIRS are directories which we simply mkdir in the build tree; # LINKS are things to symlink back into the source tree @@ -8384,14 +8486,14 @@ DIRS="tests tests/tcg tests/tcg/lm32 tests/qapi-schema tests/qtest/libqos" DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph" DIRS="$DIRS docs docs/interop fsdev scsi" DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw" -DIRS="$DIRS roms/seabios roms/vgabios" +DIRS="$DIRS roms/seabios" LINKS="Makefile" LINKS="$LINKS tests/tcg/lm32/Makefile po/Makefile" LINKS="$LINKS tests/tcg/Makefile.target tests/fp/Makefile" LINKS="$LINKS tests/plugin/Makefile" LINKS="$LINKS pc-bios/optionrom/Makefile pc-bios/keymaps" LINKS="$LINKS pc-bios/s390-ccw/Makefile" -LINKS="$LINKS roms/seabios/Makefile roms/vgabios/Makefile" +LINKS="$LINKS roms/seabios/Makefile" LINKS="$LINKS pc-bios/qemu-icon.bmp" LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit LINKS="$LINKS tests/acceptance tests/data" @@ -8424,7 +8526,7 @@ export target_list source_path use_containers $source_path/tests/tcg/configure.sh) # temporary config to build submodules -for rom in seabios vgabios ; do +for rom in seabios; do config_mak=roms/$rom/config.mak echo "# Automatically generated by configure - do not modify" > $config_mak echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak |