diff options
| author | Andi Kleen <andi@firstfloor.org> | 2009-09-18 12:49:37 -0700 |
|---|---|---|
| committer | Sam Ravnborg <sam@ravnborg.org> | 2009-09-20 12:27:44 +0200 |
| commit | 8f7f5c9fc2966704579ff93f459ffa458bca6fc2 (patch) | |
| tree | 63d6ecdac2e10828c45205f2c7d4a5e558c5767a | |
| parent | c3c63b6bec3135e814fa07d30d57a253f41d53de (diff) | |
| download | lwn-8f7f5c9fc2966704579ff93f459ffa458bca6fc2.tar.gz lwn-8f7f5c9fc2966704579ff93f459ffa458bca6fc2.zip | |
kbuild: set -fconserve-stack option for gcc 4.5
The upcomming gcc 4.5 has a new -fconserve-stack option that tells the
inliner to take stack frame size in account. Set it if the compiler
supports it.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| -rw-r--r-- | Makefile | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -615,6 +615,9 @@ KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow) # revert to pre-gcc-4.4 behaviour of .eh_frame KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) +# conserve stack if available +KBUILD_CFLAGS += $(call cc-option,-fconserve-stack) + # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments # But warn user when we do so warn-assign = \ |