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/* unwinder.h
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*
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* Copyright 2002-2005 ARM Limited. All rights reserved.
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*
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* Your rights to use this code are set out in the accompanying licence
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* text file LICENCE.txt (ARM contract number LEC-ELA-00080 v2.0).
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*/
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/*
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* RCS $Revision: 91721 $
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* Checkin $Date: 2005-08-08 19:30:07 +0100 (Mon, 08 Aug 2005) $
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* Revising $Author: drodgman $
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*/
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/* Language-independent unwinder header public defines */
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#ifndef UNWINDER_H
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#define UNWINDER_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef enum {
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_URC_OK = 0, /* operation completed successfully */
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_URC_FOREIGN_EXCEPTION_CAUGHT = 1,
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_URC_HANDLER_FOUND = 6,
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_URC_INSTALL_CONTEXT = 7,
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_URC_CONTINUE_UNWIND = 8,
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_URC_FAILURE = 9 /* unspecified failure of some kind */
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} _Unwind_Reason_Code;
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typedef enum {
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_US_VIRTUAL_UNWIND_FRAME = 0,
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_US_UNWIND_FRAME_STARTING = 1,
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_US_UNWIND_FRAME_RESUME = 2
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} _Unwind_State;
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typedef struct _Unwind_Control_Block _Unwind_Control_Block;
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typedef struct _Unwind_Context _Unwind_Context;
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typedef uint32_t _Unwind_EHT_Header;
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/* UCB: */
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struct _Unwind_Control_Block {
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char exception_class[8];
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void (*exception_cleanup)(_Unwind_Reason_Code, _Unwind_Control_Block *);
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/* Unwinder cache, private fields for the unwinder's use */
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struct {
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uint32_t reserved1; /* init reserved1 to 0, then don't touch */
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uint32_t reserved2;
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uint32_t reserved3;
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uint32_t reserved4;
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uint32_t reserved5;
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} unwinder_cache;
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/* Propagation barrier cache (valid after phase 1): */
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struct {
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uint32_t sp;
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uint32_t bitpattern[5];
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} barrier_cache;
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/* Cleanup cache (preserved over cleanup): */
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struct {
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uint32_t bitpattern[4];
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} cleanup_cache;
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/* Pr cache (for pr's benefit): */
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struct {
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uint32_t fnstart; /* function start address */
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_Unwind_EHT_Header *ehtp; /* pointer to EHT entry header word */
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uint32_t additional; /* additional data */
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uint32_t reserved1;
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} pr_cache;
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long long int :0; /* Force alignment of next item to 8-byte boundary */
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};
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/* Interface functions: */
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_Unwind_Reason_Code _Unwind_RaiseException(_Unwind_Control_Block *ucbp);
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NORETURNDECL void _Unwind_Resume(_Unwind_Control_Block *ucbp);
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void _Unwind_Complete(_Unwind_Control_Block *ucbp);
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void _Unwind_DeleteException(_Unwind_Control_Block *ucbp);
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/* Virtual Register Set*/
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typedef enum {
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_UVRSC_CORE = 0, /* integer register */
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_UVRSC_VFP = 1, /* vfp */
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/* 2: was fpa (obsolete) */
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_UVRSC_WMMXD = 3, /* Intel WMMX data register */
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_UVRSC_WMMXC = 4 /* Intel WMMX control register */
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} _Unwind_VRS_RegClass;
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typedef enum {
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_UVRSD_UINT32 = 0,
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_UVRSD_VFPX = 1,
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/* 2: was fpa (obsolete) */
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_UVRSD_UINT64 = 3,
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_UVRSD_FLOAT = 4,
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_UVRSD_DOUBLE = 5
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} _Unwind_VRS_DataRepresentation;
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typedef enum {
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_UVRSR_OK = 0,
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_UVRSR_NOT_IMPLEMENTED = 1,
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_UVRSR_FAILED = 2
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} _Unwind_VRS_Result;
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IMPORT_C _Unwind_VRS_Result _Unwind_VRS_Set(_Unwind_Context *context,
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_Unwind_VRS_RegClass regclass,
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uint32_t regno,
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_Unwind_VRS_DataRepresentation representation,
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void *valuep);
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IMPORT_C _Unwind_VRS_Result _Unwind_VRS_Get(_Unwind_Context *context,
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_Unwind_VRS_RegClass regclass,
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uint32_t regno,
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_Unwind_VRS_DataRepresentation representation,
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void *valuep);
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IMPORT_C _Unwind_VRS_Result _Unwind_VRS_Pop(_Unwind_Context *context,
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_Unwind_VRS_RegClass regclass,
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uint32_t descriminator,
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_Unwind_VRS_DataRepresentation representation);
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* defined UNWINDER_H */
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