diff options
| -rw-r--r-- | Makefile.target | 3 | ||||
| -rwxr-xr-x | configure | 16 |
2 files changed, 19 insertions, 0 deletions
diff --git a/Makefile.target b/Makefile.target index 8b658c0d13..927347bac2 100644 --- a/Makefile.target +++ b/Makefile.target @@ -143,6 +143,9 @@ GENERATED_HEADERS += hmp-commands.h qmp-commands-old.h endif # CONFIG_SOFTMMU +# Workaround for http://gcc.gnu.org/PR55489, see configure. +%/translate.o: QEMU_CFLAGS += $(TRANSLATE_OPT_CFLAGS) + nested-vars += obj-y # This resolves all nested paths, so it must come last @@ -1183,6 +1183,21 @@ for flag in $gcc_flags; do fi done +# Workaround for http://gcc.gnu.org/PR55489. Happens with -fPIE/-fPIC and +# large functions that use global variables. The bug is in all releases of +# GCC, but it became particularly acute in 4.6.x and 4.7.x. It is fixed in +# 4.7.3 and 4.8.0. We should be able to delete this at the end of 2013. +cat > $TMPC << EOF +#if __GNUC__ == 4 && (__GNUC_MINOR__ == 6 || (__GNUC_MINOR__ == 7 && __GNUC_PATCHLEVEL__ <= 2)) +int main(void) { return 0; } +#else +#error No bug in this compiler. +#endif +EOF +if compile_prog "-Werror -fno-gcse" "" ; then + TRANSLATE_OPT_CFLAGS=-fno-gcse +fi + if test "$static" = "yes" ; then if test "$pie" = "yes" ; then echo "static and pie are mutually incompatible" @@ -3662,6 +3677,7 @@ echo "LIBS_TOOLS+=$libs_tools" >> $config_host_mak echo "EXESUF=$EXESUF" >> $config_host_mak echo "LIBS_QGA+=$libs_qga" >> $config_host_mak echo "POD2MAN=$POD2MAN" >> $config_host_mak +echo "TRANSLATE_OPT_CFLAGS=$TRANSLATE_OPT_CFLAGS" >> $config_host_mak # generate list of library paths for linker script |