diff options
| author | Andi Kleen <andi@firstfloor.org> | 2009-09-18 15:49:37 -0400 |
|---|---|---|
| committer | Sam Ravnborg <sam@ravnborg.org> | 2009-09-20 06:27:44 -0400 |
| commit | 8f7f5c9fc2966704579ff93f459ffa458bca6fc2 (patch) | |
| tree | 63d6ecdac2e10828c45205f2c7d4a5e558c5767a /Makefile | |
| parent | c3c63b6bec3135e814fa07d30d57a253f41d53de (diff) | |
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>
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 3 |
1 files changed, 3 insertions, 0 deletions
| @@ -615,6 +615,9 @@ KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow) | |||
| 615 | # revert to pre-gcc-4.4 behaviour of .eh_frame | 615 | # revert to pre-gcc-4.4 behaviour of .eh_frame |
| 616 | KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) | 616 | KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) |
| 617 | 617 | ||
| 618 | # conserve stack if available | ||
| 619 | KBUILD_CFLAGS += $(call cc-option,-fconserve-stack) | ||
| 620 | |||
| 618 | # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments | 621 | # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments |
| 619 | # But warn user when we do so | 622 | # But warn user when we do so |
| 620 | warn-assign = \ | 623 | warn-assign = \ |