From: nikolay.borisov@arm.com (Nikolay Borisov)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 3/7] ARM: perf: Make perf use arm_get_current_stackframe
Date: Fri, 30 May 2014 17:59:47 +0100 [thread overview]
Message-ID: <1401469191-29232-4-git-send-email-nikolay.borisov@arm.com> (raw)
In-Reply-To: <1401469191-29232-1-git-send-email-nikolay.borisov@arm.com>
From: Nikolay Borisov <Nikolay.Borisov@arm.com>
Make the perf backend use the API so that it correctly references the FP
when in THUMB2 mode
Signed-off-by: Nikolay Borisov <Nikolay.Borisov@arm.com>
---
arch/arm/kernel/perf_event.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index a6bc431..55353fd 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -621,10 +621,7 @@ perf_callchain_kernel(struct perf_callchain_entry *entry, struct pt_regs *regs)
return;
}
- fr.fp = regs->ARM_fp;
- fr.sp = regs->ARM_sp;
- fr.lr = regs->ARM_lr;
- fr.pc = regs->ARM_pc;
+ arm_get_current_stackframe(regs, &fr);
walk_stackframe(&fr, callchain_trace, entry);
}
--
1.8.1.5
next prev parent reply other threads:[~2014-05-30 16:59 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-30 16:59 [PATCH v2 0/7] Fix backtrace support in THUMB2 mode Nikolay Borisov
2014-05-30 16:59 ` [PATCH v2 1/7] ARM: Make thread_save_fp macro aware of " Nikolay Borisov
2014-05-30 16:59 ` [PATCH v2 2/7] ARM: Introduce arm_get_current_stack_frame() Nikolay Borisov
2014-05-30 17:20 ` Will Deacon
2014-06-02 8:05 ` Robert Richter
2014-05-30 16:59 ` Nikolay Borisov [this message]
2014-05-30 16:59 ` [PATCH v2 4/7] ARM: time: Make use of arm_get_current_stackframe Nikolay Borisov
2014-05-30 16:59 ` [PATCH v2 5/7] ARM: unwind: Use arm_get_current_stackframe Nikolay Borisov
2014-05-30 16:59 ` [PATCH v2 6/7] ARM: traps: Make use of the frame_pointer macro Nikolay Borisov
2014-05-30 16:59 ` [PATCH v2 7/7] ARM: oprofile: Use of arm_get_current_stackframe Nikolay Borisov
2014-05-30 17:19 ` [PATCH v2 0/7] Fix backtrace support in THUMB2 mode Will Deacon
2014-05-31 18:31 ` Arnd Bergmann
2014-06-02 8:34 ` Nikolay Borisov
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