The patch titled kbuild: set -fconserve-stack option for gcc 4.5 has been added to the -mm tree. Its filename is kbuild-set-fconserve-stack-option-for-gcc-45.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: kbuild: set -fconserve-stack option for gcc 4.5 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 = \ _ Patches currently in -mm which might be from andi@xxxxxxxxxxxxxx are linux-next.patch mm-memory-failure-remove-config_unevictable_lru-config-option.patch kbuild-fix-ld-option-makefile-macro-to-really-work.patch kbuild-check-if-linker-supports-the-x-option.patch kbuild-echo-the-record_mcount-command.patch kbuild-fail-build-if-recordmcountpl-fails.patch kbuild-set-fconserve-stack-option-for-gcc-45.patch vfs-optimization-for-touch_atime.patch vfs-optimize-touch_time-too.patch hugetlb-restore-interleaving-of-bootmem-huge-pages.patch documentation-memorytxt-remove-some-very-outdated-recommendations.patch build_bug_on-fix-it-and-a-couple-of-bogus-uses-of-it.patch video-console-use-div_round_up.patch time-add-function-to-convert-between-calendar-time-and-broken-down-time-for-universal-use.patch fatfs-use-common-time_to_tm-in-fat_time_unix2fat.patch page-types-add-feature-for-walking-process-address-space.patch memcg-improve-resource-counter-scalability.patch memcg-improve-resource-counter-scalability-v5.patch exec-make-do_coredump-more-resilient-to-recursive-crashes-v9.patch exec-let-do_coredump-limit-the-number-of-concurrent-dumps-to-pipes-v9.patch exec-allow-do_coredump-to-wait-for-user-space-pipe-readers-to-complete-v9.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html