/*
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* arch/arm/include/asm/unwind.h
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*
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* Copyright (C) 2008 ARM Limited
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* 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 this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __ASM_UNWIND_H
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#define __ASM_UNWIND_H
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#ifndef __ASSEMBLY__
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/* Unwind reason code according the the ARM EABI documents */
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enum unwind_reason_code {
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URC_OK = 0, /* operation completed successfully */
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URC_CONTINUE_UNWIND = 8,
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URC_FAILURE = 9 /* unspecified failure of some kind */
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};
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struct unwind_idx {
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unsigned long addr_offset;
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unsigned long insn;
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};
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struct unwind_table {
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struct list_head list;
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const struct unwind_idx *start;
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const struct unwind_idx *origin;
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const struct unwind_idx *stop;
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unsigned long begin_addr;
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unsigned long end_addr;
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};
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extern struct unwind_table *unwind_table_add(unsigned long start,
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unsigned long size,
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unsigned long text_addr,
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unsigned long text_size);
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extern void unwind_table_del(struct unwind_table *tab);
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extern void unwind_backtrace(struct pt_regs *regs, struct task_struct *tsk);
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#endif /* !__ASSEMBLY__ */
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#ifdef CONFIG_ARM_UNWIND
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#define UNWIND(code...) code
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#else
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#define UNWIND(code...)
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#endif
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#endif /* __ASM_UNWIND_H */
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