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/*
* Copyright (c) 2009 Jakub Jermar
* Copyright (c) 2010 Jiri Svoboda
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup libc
* @{
*/
/** @file
*/
#include <stacktrace.h>
#include <stdio.h>
#include <sys/types.h>
#include <errno.h>
static int stacktrace_read_uintptr(void *arg, uintptr_t addr, uintptr_t *data);
void stacktrace_print_fp_pc(uintptr_t fp, uintptr_t pc)
{
stacktrace_t st;
uintptr_t nfp;
st.op_arg = NULL;
st.read_uintptr = stacktrace_read_uintptr;
while (stacktrace_fp_valid(&st, fp)) {
printf("%p: %p()\n", (void *) fp, (void *) pc);
(void) stacktrace_ra_get(&st, fp, &pc);
(void) stacktrace_fp_prev(&st, fp, &nfp);
fp = nfp;
}
}
void stacktrace_print(void)
{
stacktrace_prepare();
stacktrace_print_fp_pc(stacktrace_fp_get(), stacktrace_pc_get());
/*
* Prevent the tail call optimization of the previous call by
* making it a non-tail call.
*/
printf("-- end of stack trace --\n");
}
static int stacktrace_read_uintptr(void *arg, uintptr_t addr, uintptr_t *data)
{
(void) arg;
*data = *((uintptr_t *) addr);
return EOK;
}
/** @}
*/
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