On Wed, 11 Apr 2007 15:59:16 +0400
Maxim Uvarov <[email protected]> wrote:
> Thanks Eric, I's really better. I have done changes. Do you have any
> others objections now?
> All is in attached perf_stat.patch.
Hi Maxim
I know *nothing* about powerpc assembly, but I think there is a problem :
Index: linux-2.6.21-rc5/arch/powerpc/kernel/entry_64.S
===================================================================
--- linux-2.6.21-rc5.orig/arch/powerpc/kernel/entry_64.S
+++ linux-2.6.21-rc5/arch/powerpc/kernel/entry_64.S
@@ -115,6 +115,11 @@ END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISER
addi r9,r1,STACK_FRAME_OVERHEAD
#endif
clrrdi r11,r1,THREAD_SHIFT
+#ifdef CONFIG_THREAD_PERF_STAT_SYSC
+ lwz r10,TI_SYSC_CNT(r11)
+ addi r10,r10,1
+ stw r10,TI_SYSC_CNT(r11)
+#endif /* CONFIG_THREAD_PERF_STAT_SYSC */
ld r10,TI_FLAGS(r11)
andi. r11,r10,_TIF_SYSCALL_T_OR_A
bne- syscall_dotrace
sysc_cnt being an 'unsigned long', its a 64 bits long integer...
So you probably need ld/std instructions instead of lwz/stw
-
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