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/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2006 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2011 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2017 IBM Corporation. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
#include <stdio.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_EXECINFO_H
# include <execinfo.h>
#endif
#include "opal/constants.h"
#include "opal/util/output.h"
#include "opal/mca/backtrace/backtrace.h"
int opal_backtrace_print(FILE *file, char *prefix, int strip)
{
int i, len;
int trace_size;
void *trace[32];
char buf[6];
int fd = opal_stacktrace_output_fileno;
if (NULL != file) {
fd = fileno(file);
}
if (-1 == fd) {
return OPAL_ERR_BAD_PARAM;
}
trace_size = backtrace(trace, 32);
for (i = strip; i < trace_size; i++) {
if (NULL != prefix) {
opal_best_effort_write(fd, prefix, strlen(prefix));
}
len = snprintf(buf, sizeof(buf), "[%2d] ", i - strip);
opal_best_effort_write(fd, buf, len);
backtrace_symbols_fd(&trace[i], 1, fd);
}
return OPAL_SUCCESS;
}
int opal_backtrace_buffer(char ***message_out, int *len_out)
{
int trace_size;
void *trace[32];
char **funcs = (char **) NULL;
trace_size = backtrace(trace, 32);
funcs = backtrace_symbols(trace, trace_size);
*message_out = funcs;
*len_out = trace_size;
return OPAL_SUCCESS;
}
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