The patch titled
x86: define ARCH_WANT_FRAME_POINTERS
has been added to the -mm tree. Its filename is
x86-define-arch_want_frame_pointers.patch
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------------------------------------------------------
Subject: x86: define ARCH_WANT_FRAME_POINTERS
From: Jeff Mahoney <jeffm@xxxxxxxx>
Commit da4276b8299a6544dc41ac2485d3ffca5811b3fb changed a dependency for
FRAME_POINTER from X86 to ARCH_WANT_FRAME_POINTERS, but didn't actually
define it.
This patch adds the definition for ARCH_WANT_FRAME_POINTERS. Without it,
FRAME_POINTER can't be enabled on x86.
Signed-off-by: Jeff Mahoney <jeffm@xxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/Kconfig.debug | 6 ++++++
1 file changed, 6 insertions(+)
diff -puN lib/Kconfig.debug~x86-define-arch_want_frame_pointers lib/Kconfig.debug
--- a/lib/Kconfig.debug~x86-define-arch_want_frame_pointers
+++ a/lib/Kconfig.debug
@@ -603,6 +603,12 @@ config DEBUG_NOTIFIERS
This is a relatively cheap check but if you care about maximum
performance, say N.
+config ARCH_WANT_FRAME_POINTERS
+ bool
+ help
+ Select this config option from the architecture Kconfig, if it
+ it is preferred to always enable frame pointers on the architecture.
+
config FRAME_POINTER
bool "Compile the kernel with frame pointers"
depends on DEBUG_KERNEL && \
_
Patches currently in -mm which might be from jeffm@xxxxxxxx are
x86-define-arch_want_frame_pointers.patch
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