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| author | Michal Marek <mmarek@suse.cz> | 2010-10-12 15:09:06 +0200 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.cz> | 2010-10-12 15:09:06 +0200 |
| commit | 239060b93bb30a4ad55f1ecaa512464a035cc5ba (patch) | |
| tree | 77f79810e57d4fc24356eca0cd6db463e8994128 /arch/powerpc/kernel/misc.S | |
| parent | 1408b15b98635a13bad2e2a50b3c2ae2ccdf625b (diff) | |
| parent | e9203c988234aa512bd45ca32b52e21c7bbfc414 (diff) | |
Merge branch 'kbuild/rc-fixes' into kbuild/kconfig
We need to revert the temporary hack in 71ebc01, hence the merge.
Diffstat (limited to 'arch/powerpc/kernel/misc.S')
| -rw-r--r-- | arch/powerpc/kernel/misc.S | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/arch/powerpc/kernel/misc.S b/arch/powerpc/kernel/misc.S index 22e507c8a55..2d29752cbe1 100644 --- a/arch/powerpc/kernel/misc.S +++ b/arch/powerpc/kernel/misc.S @@ -127,29 +127,3 @@ _GLOBAL(__setup_cpu_power7) _GLOBAL(__restore_cpu_power7) /* place holder */ blr - -/* - * Get a minimal set of registers for our caller's nth caller. - * r3 = regs pointer, r5 = n. - * - * We only get R1 (stack pointer), NIP (next instruction pointer) - * and LR (link register). These are all we can get in the - * general case without doing complicated stack unwinding, but - * fortunately they are enough to do a stack backtrace, which - * is all we need them for. - */ -_GLOBAL(perf_arch_fetch_caller_regs) - mr r6,r1 - cmpwi r5,0 - mflr r4 - ble 2f - mtctr r5 -1: PPC_LL r6,0(r6) - bdnz 1b - PPC_LL r4,PPC_LR_STKOFF(r6) -2: PPC_LL r7,0(r6) - PPC_LL r7,PPC_LR_STKOFF(r7) - PPC_STL r6,GPR1-STACK_FRAME_OVERHEAD(r3) - PPC_STL r4,_NIP-STACK_FRAME_OVERHEAD(r3) - PPC_STL r7,_LINK-STACK_FRAME_OVERHEAD(r3) - blr |