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1a29ef8e97
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19815 3c298f89-4303-0410-b956-a3cf2f4a3e73
73 lines
2.3 KiB
C
73 lines
2.3 KiB
C
/*
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* arch/ubicom32/include/asm/stacktrace.h
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* Stacktrace functions for the Ubicom32 architecture.
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*
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* (C) Copyright 2009, Ubicom, Inc.
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*
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* This file is part of the Ubicom32 Linux Kernel Port.
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*
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* The Ubicom32 Linux Kernel Port is free software: you can redistribute
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* it and/or modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, either version 2 of the
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* License, or (at your option) any later version.
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*
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* The Ubicom32 Linux Kernel Port is distributed in the hope that it
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* will be useful, but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with the Ubicom32 Linux Kernel Port. If not,
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* see <http://www.gnu.org/licenses/>.
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*
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* Ubicom32 implementation derived from (with many thanks):
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* arch/m68knommu
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* arch/blackfin
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* arch/parisc
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*/
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#ifndef _ASM_UBICOM32_STACKTRACE_H
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#define _ASM_UBICOM32_STACKTRACE_H
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#define between(a, b, c) (( \
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((unsigned long) a) >= ((unsigned long) b)) && \
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(((unsigned long)a) <= ((unsigned long)c)))
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/*
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* These symbols are filled in by the linker.
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*/
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extern unsigned long _stext;
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extern unsigned long _etext;
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/* OCM text goes from __ocm_text_run_begin to __data_begin */
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extern unsigned long __ocm_text_run_begin;
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extern unsigned long __data_begin;
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/* Account for OCM case - see stacktrace.c maybe combine(also trap.c) */
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/*
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* ubicom32_is_kernel()
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*
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* Check to see if the given address belongs to the kernel.
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* NOMMU does not permit any other means.
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*/
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static inline int ubicom32_is_kernel(unsigned long addr)
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{
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int is_kernel = between(addr, &_stext, &_etext) || \
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between(addr, &__ocm_text_run_begin, &__data_begin);
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#ifdef CONFIG_MODULES
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if (!is_kernel)
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is_kernel = is_module_address(addr);
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#endif
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return is_kernel;
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}
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extern unsigned long stacktrace_iterate(
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unsigned long **trace,
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unsigned long stext, unsigned long etext,
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unsigned long ocm_stext, unsigned long ocm_etext,
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unsigned long sstack, unsigned long estack);
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#ifdef CONFIG_STACKTRACE
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void stacktrace_save_entries(struct task_struct *tsk, struct stack_trace *trace, unsigned long sp);
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#endif
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#endif /* _ASM_UBICOM32_STACKTRACE_H */
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