From: Andi Kleen <andi@xxxxxxxxxxxxxx> 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> Cc: Sam Ravnborg <sam@xxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- Makefile | 3 +++ 1 file changed, 3 insertions(+) diff -puN Makefile~kbuild-set-fconserve-stack-option-for-gcc-45 Makefile --- a/Makefile~kbuild-set-fconserve-stack-option-for-gcc-45 +++ a/Makefile @@ -573,6 +573,9 @@ 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
