| /*! \file backtrace.c |
| * Routines related to generating call back traces. */ |
| /* |
| * (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org> |
| * (C) 2012 by Harald Welte <laforge@gnumonks.org> |
| * |
| * All Rights Reserved |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <osmocom/core/utils.h> |
| #include <osmocom/core/logging.h> |
| #include "config.h" |
| |
| #ifdef HAVE_EXECINFO_H |
| #include <execinfo.h> |
| |
| static void _osmo_backtrace(int use_printf, int subsys, int level) |
| { |
| int i, nptrs; |
| void *buffer[100]; |
| char **strings; |
| |
| nptrs = backtrace(buffer, ARRAY_SIZE(buffer)); |
| if (use_printf) |
| printf("backtrace() returned %d addresses\n", nptrs); |
| else |
| LOGP(subsys, level, "backtrace() returned %d addresses\n", |
| nptrs); |
| |
| strings = backtrace_symbols(buffer, nptrs); |
| if (!strings) |
| return; |
| |
| for (i = 1; i < nptrs; i++) { |
| if (use_printf) |
| printf("%s\n", strings[i]); |
| else |
| LOGP(subsys, level, "\t%s\n", strings[i]); |
| } |
| |
| free(strings); |
| } |
| |
| /*! Generate and print a call back-trace |
| * |
| * This function will generate a function call back-trace of the |
| * current process and print it to stdout. */ |
| void osmo_generate_backtrace(void) |
| { |
| _osmo_backtrace(1, 0, 0); |
| } |
| |
| /*! Generate and log a call back-trace |
| * \param[in] subsys Logging sub-system |
| * \param[in] level Logging level |
| * |
| * This function will generate a function call back-trace of the |
| * current process and log it to the specified subsystem and |
| * level using the libosmocore logging subsystem */ |
| void osmo_log_backtrace(int subsys, int level) |
| { |
| _osmo_backtrace(0, subsys, level); |
| } |
| #else |
| void osmo_generate_backtrace(void) |
| { |
| printf("This platform has no backtrace function\n"); |
| } |
| void osmo_log_backtrace(int subsys, int level) |
| { |
| LOGP(subsys, level, "This platform has no backtrace function\n"); |
| } |
| #endif |