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@xxxxxxxxxxxxxxx> --- Makefile | 3 +++ 1 file changed, 3 insertions(+) Index: linux-2.6.31-rc3-ak/Makefile =================================================================== --- linux-2.6.31-rc3-ak.orig/Makefile +++ linux-2.6.31-rc3-ak/Makefile @@ -575,6 +575,9 @@ KBUILD_CFLAGS += $(call cc-option,-fno-s # 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 = \ -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
