3 * Copyright 2002-2003 ARM Limited.
8 1. Subject to the provisions of clause 2, ARM hereby grants to LICENSEE a
9 perpetual, non-exclusive, nontransferable, royalty free, worldwide licence
10 to use this Example Implementation of Exception Handling solely for the
11 purpose of developing, having developed, manufacturing, having
12 manufactured, offering to sell, selling, supplying or otherwise
13 distributing products which comply with the Exception Handling ABI for the
14 ARM Architecture specification. All other rights are reserved to ARM or its
17 2. THIS EXAMPLE IMPLEMENTATION OF EXCEPTION HANDLING IS PROVIDED "AS IS"
18 WITH NO WARRANTIES EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT LIMITED
19 TO ANY WARRANTY OF SATISFACTORY QUALITY, MERCHANTABILITY, NONINFRINGEMENT
20 OR FITNESS FOR A PARTICULAR PURPOSE.
23 * RCS $Revision: 1.7 $
24 * Checkin $Date: 2003/09/01 12:45:25 $
25 * Revising $Author: achapman $
28 /* Language-independent unwinder header public defines */
38 _URC_OK = 0, /* operation completed successfully */
39 _URC_FOREIGN_EXCEPTION_CAUGHT = 1,
40 _URC_HANDLER_FOUND = 6,
41 _URC_INSTALL_CONTEXT = 7,
42 _URC_CONTINUE_UNWIND = 8,
43 _URC_FAILURE = 9 /* unspecified failure of some kind */
44 } _Unwind_Reason_Code;
47 _US_VIRTUAL_UNWIND_FRAME = 0,
48 _US_UNWIND_FRAME_STARTING = 1,
49 _US_UNWIND_FRAME_RESUME = 2
52 typedef struct _Unwind_Control_Block _Unwind_Control_Block;
53 typedef struct _Unwind_Context _Unwind_Context;
54 typedef uint32_t _Unwind_EHT_Header;
59 struct _Unwind_Control_Block {
60 char exception_class[8];
61 void (*exception_cleanup)(_Unwind_Reason_Code, _Unwind_Control_Block *);
62 /* Unwinder cache, private fields for the unwinder's use */
64 uint32_t reserved1; /* init reserved1 to 0, then don't touch */
70 /* Propagation barrier cache (valid after phase 1): */
73 uint32_t bitpattern[5];
75 /* Cleanup cache (preserved over cleanup): */
77 uint32_t bitpattern[4];
79 /* Pr cache (for pr's benefit): */
81 uint32_t fnstart; /* function start address */
82 _Unwind_EHT_Header *ehtp; /* pointer to EHT entry header word */
83 uint32_t additional; /* additional data */
86 long long int :0; /* Force alignment of next item to 8-byte boundary */
89 /* Interface functions: */
91 _Unwind_Reason_Code _Unwind_RaiseException(_Unwind_Control_Block *ucbp);
92 NORETURNDECL void _Unwind_Resume(_Unwind_Control_Block *ucbp);
93 void _Unwind_Complete(_Unwind_Control_Block *ucbp);
95 /* Virtual Register Set*/
98 _UVRSC_CORE = 0, /* integer register */
99 _UVRSC_VFP = 1, /* vfp */
100 _UVRSC_FPA = 2, /* fpa */
101 _UVRSC_WMMXD = 3, /* Intel WMMX data register */
102 _UVRSC_WMMXC = 4 /* Intel WMMX control register */
103 } _Unwind_VRS_RegClass;
112 } _Unwind_VRS_DataRepresentation;
116 _UVRSR_NOT_IMPLEMENTED = 1,
118 } _Unwind_VRS_Result;
120 _Unwind_VRS_Result _Unwind_VRS_Set(_Unwind_Context *context,
121 _Unwind_VRS_RegClass regclass,
123 _Unwind_VRS_DataRepresentation representation,
126 _Unwind_VRS_Result _Unwind_VRS_Get(_Unwind_Context *context,
127 _Unwind_VRS_RegClass regclass,
129 _Unwind_VRS_DataRepresentation representation,
132 _Unwind_VRS_Result _Unwind_VRS_Pop(_Unwind_Context *context,
133 _Unwind_VRS_RegClass regclass,
134 uint32_t descriminator,
135 _Unwind_VRS_DataRepresentation representation);
141 #endif /* defined UNWINDER_H */