Commit 8f7f5c9f authored by Andi Kleen's avatar Andi Kleen Committed by Sam Ravnborg

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: default avatarAndi Kleen <ak@linux.intel.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
parent c3c63b6b
......@@ -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 = \
......
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