Commit 7caebeaf authored by Andi Kleen's avatar Andi Kleen Committed by Linus Torvalds

[PATCH] x86_64: remove CONFIG_FRAME_POINTER

CONFIG_FRAME_POINTER has never worked on x86-64 because it never passed
-fno-omit-frame-pointer to the compiler, and that is the only way to get a
frame pointer on x86-64.

It also causes complications with profiling. Drop it.
Signed-off-by: default avatarAndi Kleen <ak@suse.de>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent b2123b2a
...@@ -30,15 +30,6 @@ config SCHEDSTATS ...@@ -30,15 +30,6 @@ config SCHEDSTATS
application, you can say N to avoid the very slight overhead application, you can say N to avoid the very slight overhead
this adds. this adds.
config FRAME_POINTER
bool "Compile the kernel with frame pointers"
help
Compile the kernel with frame pointers. This may help for some
debugging with external debuggers. Note the standard oops backtracer
doesn't make use of this and the x86-64 kernel doesn't ensure a
consistent frame pointer through inline assembly (semaphores etc.)
Normally you should say N.
config IOMMU_DEBUG config IOMMU_DEBUG
depends on GART_IOMMU && DEBUG_KERNEL depends on GART_IOMMU && DEBUG_KERNEL
bool "Enable IOMMU debugging" bool "Enable IOMMU debugging"
......
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