diff options
Diffstat (limited to 'mjit_worker.c')
| -rw-r--r-- | mjit_worker.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/mjit_worker.c b/mjit_worker.c index bb5174aed6..0b6ea75966 100644 --- a/mjit_worker.c +++ b/mjit_worker.c @@ -247,6 +247,14 @@ static char *libruby_pathflag; # define MJIT_CFLAGS_PIPE 0 #endif +// Use `-nodefaultlibs -nostdlib` for GCC where possible, which does not work on mingw and cygwin. +// This seems to improve MJIT performance on GCC. +#if defined __GNUC__ && !defined __clang__ && !defined(_WIN32) && !defined(__CYGWIN__) +# define GCC_NOSTDLIB_FLAGS "-nodefaultlibs", "-nostdlib", +#else +# define GCC_NOSTDLIB_FLAGS /* empty */ +#endif + static const char *const CC_COMMON_ARGS[] = { MJIT_CC_COMMON MJIT_CFLAGS GCC_PIC_FLAGS NULL @@ -260,11 +268,8 @@ static const char *const CC_DLDFLAGS_ARGS[] = { MJIT_DLDFLAGS #if defined __GNUC__ && !defined __clang__ "-nostartfiles", -# if !defined(_WIN32) && !defined(__CYGWIN__) - "-nodefaultlibs", "-nostdlib", -# endif #endif - NULL + GCC_NOSTDLIB_FLAGS NULL }; static const char *const CC_LIBS[] = { @@ -734,6 +739,9 @@ make_pch(void) # ifdef __clang__ "-emit-pch", # endif + // -nodefaultlibs is a linker flag, but it may affect cc1 behavior on Gentoo, which should NOT be changed on pch: + // https://gitweb.gentoo.org/proj/gcc-patches.git/tree/7.3.0/gentoo/13_all_default-ssp-fix.patch + GCC_NOSTDLIB_FLAGS "-o", NULL, NULL, NULL, }; |