/**************************************************************************** * libs/libc/debug/lib_dumpstack.c * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #define DUMP_FORMAT "%*p" #define DUMP_WIDTH (int)(2 * sizeof(FAR void *) + 3) #define DUMP_DEPTH 16 #define DUMP_NITEM 8 #define DUMP_LINESIZE (DUMP_NITEM * DUMP_WIDTH) /**************************************************************************** * Public Functions ****************************************************************************/ void dump_stack(void) { FAR void *address[DUMP_DEPTH]; char line[DUMP_LINESIZE + 1]; int ret = 0; int size; int i; size = backtrace(address, DUMP_DEPTH); if (size <= 0) { return; } for (i = 0; i < size; i++) { ret += snprintf(line + ret, sizeof(line) - ret, DUMP_FORMAT, DUMP_WIDTH, address[i]); if (i == size - 1 || ret % DUMP_LINESIZE == 0) { syslog(LOG_INFO, "[CallStack %d]: %s\n", i / DUMP_NITEM, line); ret = 0; } } }