| * 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 |
| #include <linux/kernel.h> |
| #include <linux/perf_event.h> |
| #include <linux/percpu.h> |
| #include <asm/unwinder.h> |
| static int callchain_stack(void *data, char *name) |
| static void callchain_address(void *data, unsigned long addr, int reliable) |
| struct perf_callchain_entry *entry = data; |
| 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 *entry, struct pt_regs *regs) |
| perf_callchain_store(entry, regs->pc); |
| unwind_stack(NULL, regs, NULL, &callchain_ops, entry); |