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Diffstat (limited to 'src/core/backtrace.c')
-rw-r--r-- | src/core/backtrace.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/src/core/backtrace.c b/src/core/backtrace.c new file mode 100644 index 00000000..60bd2381 --- /dev/null +++ b/src/core/backtrace.c @@ -0,0 +1,88 @@ +/*! \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 + * + * SPDX-License-Identifier: GPL-2.0+ + * + * 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. + * + */ + +#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 |