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* Copyright (c) 2010 Jakub Jermar
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* - The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <stacktrace.h>
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#include <syscall/copy.h>
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#include <arch/types.h>
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#define FRAME_OFFSET_FP_PREV -3
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#define FRAME_OFFSET_RA -1
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bool kernel_frame_pointer_validate(uintptr_t fp)
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bool kernel_frame_pointer_prev(uintptr_t fp, uintptr_t *prev)
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uint32_t *stack = (void *) fp;
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*prev = stack[FRAME_OFFSET_FP_PREV];
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bool kernel_return_address_get(uintptr_t fp, uintptr_t *ra)
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uint32_t *stack = (void *) fp;
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*ra = stack[FRAME_OFFSET_RA];
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bool uspace_frame_pointer_validate(uintptr_t fp)
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bool uspace_frame_pointer_prev(uintptr_t fp, uintptr_t *prev)
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return !copy_from_uspace((void *) prev,
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(uint32_t *) fp + FRAME_OFFSET_FP_PREV, sizeof(*prev));
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bool uspace_return_address_get(uintptr_t fp, uintptr_t *ra)
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return !copy_from_uspace((void *) ra, (uint32_t *) fp + FRAME_OFFSET_RA,