1 /* 2 * Copyright 2012 Google, Inc. 3 * 4 * This software is licensed under the terms of the GNU General Public 5 * License version 2, as published by the Free Software Foundation, and 6 * may be copied, distributed, and modified under those terms. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 */ 13 14 #include <linux/kernel.h> 15 #include <linux/compiler.h> 16 #include <linux/irqflags.h> 17 #include <linux/percpu.h> 18 #include <linux/smp.h> 19 #include <linux/atomic.h> 20 #include <asm/barrier.h> 21 #include "internal.h" 22 23 void notrace pstore_ftrace_call(unsigned long ip, unsigned long parent_ip) 24 { 25 struct pstore_ftrace_record rec = {}; 26 27 if (unlikely(oops_in_progress)) 28 return; 29 30 rec.ip = ip; 31 rec.parent_ip = parent_ip; 32 pstore_ftrace_encode_cpu(&rec, raw_smp_processor_id()); 33 psinfo->write_buf(PSTORE_TYPE_FTRACE, 0, NULL, 0, (void *)&rec, 34 sizeof(rec), psinfo); 35 } 36