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/*
* Copyright (c) 2012 Richard Braun.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*
* Stack tracing.
*
* TODO Make it possible to debug without the frame pointer.
*/
#ifndef X86_STRACE_H
#define X86_STRACE_H
#include <stdint.h>
#include <kern/macros.h>
/*
* Display a call trace.
*
* Attempt to resolve the given instruction pointer, then walk the calling
* chain from the given frame pointer.
*/
void strace_show(uintptr_t ip, uintptr_t bp);
/*
* Display the current call trace.
*/
static __always_inline void
strace_dump(void)
{
uintptr_t ip, bp;
asm volatile("1: mov $1b, %0" : "=r" (ip));
bp = (uintptr_t)__builtin_frame_address(0);
strace_show(ip, bp);
}
#endif /* X86_STRACE_H */
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