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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2006-07-03 00:24:38 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-03 15:27:02 -0700 |
| commit | cbbd1fa72d22896332301ca7e6b7164284be105c (patch) | |
| tree | a041ce22738c56b189aa1251ccc7e232385bb4a1 /arch | |
| parent | 8637c09901049f061b94f684915d4f18ecf91d79 (diff) | |
| download | linux-cbbd1fa72d22896332301ca7e6b7164284be105c.tar.gz linux-cbbd1fa72d22896332301ca7e6b7164284be105c.tar.bz2 linux-cbbd1fa72d22896332301ca7e6b7164284be105c.zip | |
[PATCH] lockdep: s390 CONFIG_FRAME_POINTER support
CONFIG_FRAME_POINTER support for s390.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/Makefile | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/s390/Makefile b/arch/s390/Makefile index b3791fb094a8..74ef57dcfa60 100644 --- a/arch/s390/Makefile +++ b/arch/s390/Makefile @@ -34,6 +34,11 @@ cflags-$(CONFIG_MARCH_G5) += $(call cc-option,-march=g5) cflags-$(CONFIG_MARCH_Z900) += $(call cc-option,-march=z900) cflags-$(CONFIG_MARCH_Z990) += $(call cc-option,-march=z990) +# +# Prevent tail-call optimizations, to get clearer backtraces: +# +cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls + # old style option for packed stacks ifeq ($(call cc-option-yn,-mkernel-backchain),y) cflags-$(CONFIG_PACK_STACK) += -mkernel-backchain -D__PACK_STACK |