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Commit 6888e32a authored by Nikolay Borisov's avatar Nikolay Borisov Committed by Russell King
Browse files

ARM: 8071/1: perf: Make perf use arm_get_current_stackframe 



Make the perf backend use the API so that it correctly references the FP
when in THUMB2 mode

Signed-off-by: default avatarNikolay Borisov <Nikolay.Borisov@arm.com>
Acked-by: default avatarWill Deacon <will.deacon@arm.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 9865f1d4

arch/arm/kernel/perf_event.c

+1 −4
Original line number Diff line number Diff line
@@ -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);

}