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[PATCH] i386: Account spinlocks to the caller during profiling for !FP kernels

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This ports the algorithm from x86-64 (with improvements) to i386.
Previously this only worked for frame pointer enabled kernels.
But spinlocks have a very simple stack frame that can be manually
analyzed. Do this.

Signed-off-by: Andi Kleen <ak@suse.de>
This commit is contained in:
Andi Kleen
2006-09-26 10:52:28 +02:00
committed by Andi Kleen
parent c16b63e09d
commit 0cb91a2293
3 changed files with 24 additions and 8 deletions
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5
kernel/spinlock.c
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@@ -7,6 +7,11 @@
*
* This file contains the spinlock/rwlock implementations for the
* SMP and the DEBUG_SPINLOCK cases. (UP-nondebug inlines them)
*
* Note that some architectures have special knowledge about the
* stack frames of these functions in their profile_pc. If you
* change anything significant here that could change the stack
* frame contact the architecture maintainers.
*/
#include <linux/linkage.h>