blob: fa2c0cd23eaa88059e0470ed953fe6daedbbcb3e [file] [log] [blame]
* Performance event callchain support - SuperH architecture code
* Copyright (C) 2009 Paul Mundt
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/perf_event.h>
#include <linux/percpu.h>
#include <asm/unwinder.h>
#include <asm/ptrace.h>
static int callchain_stack(void *data, char *name)
return 0;
static void callchain_address(void *data, unsigned long addr, int reliable)
struct perf_callchain_entry_ctx *entry = data;
if (reliable)
perf_callchain_store(entry, addr);
static const struct stacktrace_ops callchain_ops = {
.stack = callchain_stack,
.address = callchain_address,
perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs)
perf_callchain_store(entry, regs->pc);
unwind_stack(NULL, regs, NULL, &callchain_ops, entry);