/* * Copyright (c) 2010 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 libcarm32 arm32 * @ingroup lc * @{ */ /** @file */ #include <stdint.h> #include <stdbool.h> #include <stacktrace.h> #define FRAME_OFFSET_FP_PREV -12 #define FRAME_OFFSET_RA -4 bool stacktrace_fp_valid(stacktrace_t *st, uintptr_t fp) { (void) st; return fp != 0; } errno_t stacktrace_fp_prev(stacktrace_t *st, uintptr_t fp, uintptr_t *prev) { return (*st->ops->read_uintptr)(st->op_arg, fp + FRAME_OFFSET_FP_PREV, prev); } errno_t stacktrace_ra_get(stacktrace_t *st, uintptr_t fp, uintptr_t *ra) { return (*st->ops->read_uintptr)(st->op_arg, fp + FRAME_OFFSET_RA, ra); } /** @} */