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| author | Anton Blanchard <anton@samba.org> | 2005-05-05 16:15:11 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-05-05 16:36:32 -0700 |
| commit | 7d12e522ba13ce718b7ec32b75803dece8adb072 (patch) | |
| tree | 80282ac789c1d48202a570b5828b024f39e63761 | |
| parent | 696c2b9f97c2439e9fb299650041ec750df46865 (diff) | |
| download | kernel_samsung_smdk4412-7d12e522ba13ce718b7ec32b75803dece8adb072.zip kernel_samsung_smdk4412-7d12e522ba13ce718b7ec32b75803dece8adb072.tar.gz kernel_samsung_smdk4412-7d12e522ba13ce718b7ec32b75803dece8adb072.tar.bz2 | |
[PATCH] ppc64: remove hidden -fno-omit-frame-pointer for schedule.c
While looking at code generated by gcc4.0 I noticed some functions still
had frame pointers, even after we stopped ppc64 from defining
CONFIG_FRAME_POINTER. It turns out kernel/Makefile hardwires
-fno-omit-frame-pointer on when compiling schedule.c.
Create CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER and define it on architectures
that dont require frame pointers in sched.c code.
(akpm: blame me for the name)
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | arch/ia64/Kconfig | 4 | ||||
| -rw-r--r-- | arch/ppc/Kconfig | 4 | ||||
| -rw-r--r-- | arch/ppc64/Kconfig | 4 | ||||
| -rw-r--r-- | kernel/Makefile | 2 |
4 files changed, 13 insertions, 1 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index ce13ad6..3ad2c4a 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -46,6 +46,10 @@ config GENERIC_IOMAP bool default y +config SCHED_NO_NO_OMIT_FRAME_POINTER + bool + default y + choice prompt "System type" default IA64_GENERIC diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig index ff04dcd..d0d94e5 100644 --- a/arch/ppc/Kconfig +++ b/arch/ppc/Kconfig @@ -43,6 +43,10 @@ config GENERIC_NVRAM bool default y +config SCHED_NO_NO_OMIT_FRAME_POINTER + bool + default y + source "init/Kconfig" menu "Processor" diff --git a/arch/ppc64/Kconfig b/arch/ppc64/Kconfig index f5508ab..257ff66 100644 --- a/arch/ppc64/Kconfig +++ b/arch/ppc64/Kconfig @@ -40,6 +40,10 @@ config COMPAT bool default y +config SCHED_NO_NO_OMIT_FRAME_POINTER + bool + default y + # We optimistically allocate largepages from the VM, so make the limit # large enough (16MB). This badly named config option is actually # max order + 1 diff --git a/kernel/Makefile b/kernel/Makefile index eb88b44..b01d26f 100644 --- a/kernel/Makefile +++ b/kernel/Makefile @@ -29,7 +29,7 @@ obj-$(CONFIG_SYSFS) += ksysfs.o obj-$(CONFIG_GENERIC_HARDIRQS) += irq/ obj-$(CONFIG_SECCOMP) += seccomp.o -ifneq ($(CONFIG_IA64),y) +ifneq ($(CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER),y) # According to Alan Modra <alan@linuxcare.com.au>, the -fno-omit-frame-pointer is # needed for x86 only. Why this used to be enabled for all architectures is beyond # me. I suspect most platforms don't need this, but until we know that for sure |