/usr/lib/gcc/arm-linux-gnueabi/4.5.3/include/unwind.h is in gcc-4.5-arm-linux-gnueabi 4.5.3-12ubuntu2cross1.61.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 | /* Header file for the ARM EABI unwinder
Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
Contributed by Paul Brook
This file is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3, or (at your option) any
later version.
This file is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
/* Language-independent unwinder header public defines. This contains both
ABI defined objects, and GNU support routines. */
#ifndef UNWIND_ARM_H
#define UNWIND_ARM_H
#define __ARM_EABI_UNWINDER__ 1
#ifdef __cplusplus
extern "C" {
#endif
typedef unsigned _Unwind_Word __attribute__((__mode__(__word__)));
typedef signed _Unwind_Sword __attribute__((__mode__(__word__)));
typedef unsigned _Unwind_Ptr __attribute__((__mode__(__pointer__)));
typedef unsigned _Unwind_Internal_Ptr __attribute__((__mode__(__pointer__)));
typedef _Unwind_Word _uw;
typedef unsigned _uw64 __attribute__((mode(__DI__)));
typedef unsigned _uw16 __attribute__((mode(__HI__)));
typedef unsigned _uw8 __attribute__((mode(__QI__)));
typedef enum
{
_URC_OK = 0, /* operation completed successfully */
_URC_FOREIGN_EXCEPTION_CAUGHT = 1,
_URC_END_OF_STACK = 5,
_URC_HANDLER_FOUND = 6,
_URC_INSTALL_CONTEXT = 7,
_URC_CONTINUE_UNWIND = 8,
_URC_FAILURE = 9 /* unspecified failure of some kind */
}
_Unwind_Reason_Code;
typedef enum
{
_US_VIRTUAL_UNWIND_FRAME = 0,
_US_UNWIND_FRAME_STARTING = 1,
_US_UNWIND_FRAME_RESUME = 2,
_US_ACTION_MASK = 3,
_US_FORCE_UNWIND = 8,
_US_END_OF_STACK = 16
}
_Unwind_State;
/* Provided only for for compatibility with existing code. */
typedef int _Unwind_Action;
#define _UA_SEARCH_PHASE 1
#define _UA_CLEANUP_PHASE 2
#define _UA_HANDLER_FRAME 4
#define _UA_FORCE_UNWIND 8
#define _UA_END_OF_STACK 16
#define _URC_NO_REASON _URC_OK
typedef struct _Unwind_Control_Block _Unwind_Control_Block;
typedef struct _Unwind_Context _Unwind_Context;
typedef _uw _Unwind_EHT_Header;
/* UCB: */
struct _Unwind_Control_Block
{
char exception_class[8];
void (*exception_cleanup)(_Unwind_Reason_Code, _Unwind_Control_Block *);
/* Unwinder cache, private fields for the unwinder's use */
struct
{
_uw reserved1; /* Forced unwind stop fn, 0 if not forced */
_uw reserved2; /* Personality routine address */
_uw reserved3; /* Saved callsite address */
_uw reserved4; /* Forced unwind stop arg */
_uw reserved5;
}
unwinder_cache;
/* Propagation barrier cache (valid after phase 1): */
struct
{
_uw sp;
_uw bitpattern[5];
}
barrier_cache;
/* Cleanup cache (preserved over cleanup): */
struct
{
_uw bitpattern[4];
}
cleanup_cache;
/* Pr cache (for pr's benefit): */
struct
{
_uw fnstart; /* function start address */
_Unwind_EHT_Header *ehtp; /* pointer to EHT entry header word */
_uw additional; /* additional data */
_uw reserved1;
}
pr_cache;
long long int :0; /* Force alignment to 8-byte boundary */
};
/* Virtual Register Set*/
typedef enum
{
_UVRSC_CORE = 0, /* integer register */
_UVRSC_VFP = 1, /* vfp */
_UVRSC_FPA = 2, /* fpa */
_UVRSC_WMMXD = 3, /* Intel WMMX data register */
_UVRSC_WMMXC = 4 /* Intel WMMX control register */
}
_Unwind_VRS_RegClass;
typedef enum
{
_UVRSD_UINT32 = 0,
_UVRSD_VFPX = 1,
_UVRSD_FPAX = 2,
_UVRSD_UINT64 = 3,
_UVRSD_FLOAT = 4,
_UVRSD_DOUBLE = 5
}
_Unwind_VRS_DataRepresentation;
typedef enum
{
_UVRSR_OK = 0,
_UVRSR_NOT_IMPLEMENTED = 1,
_UVRSR_FAILED = 2
}
_Unwind_VRS_Result;
/* Frame unwinding state. */
typedef struct
{
/* The current word (bytes packed msb first). */
_uw data;
/* Pointer to the next word of data. */
_uw *next;
/* The number of bytes left in this word. */
_uw8 bytes_left;
/* The number of words pointed to by ptr. */
_uw8 words_left;
}
__gnu_unwind_state;
typedef _Unwind_Reason_Code (*personality_routine) (_Unwind_State,
_Unwind_Control_Block *, _Unwind_Context *);
_Unwind_VRS_Result _Unwind_VRS_Set(_Unwind_Context *, _Unwind_VRS_RegClass,
_uw, _Unwind_VRS_DataRepresentation,
void *);
_Unwind_VRS_Result _Unwind_VRS_Get(_Unwind_Context *, _Unwind_VRS_RegClass,
_uw, _Unwind_VRS_DataRepresentation,
void *);
_Unwind_VRS_Result _Unwind_VRS_Pop(_Unwind_Context *, _Unwind_VRS_RegClass,
_uw, _Unwind_VRS_DataRepresentation);
/* Support functions for the PR. */
#define _Unwind_Exception _Unwind_Control_Block
typedef char _Unwind_Exception_Class[8];
void * _Unwind_GetLanguageSpecificData (_Unwind_Context *);
_Unwind_Ptr _Unwind_GetRegionStart (_Unwind_Context *);
/* These two should never be used. */
_Unwind_Ptr _Unwind_GetDataRelBase (_Unwind_Context *);
_Unwind_Ptr _Unwind_GetTextRelBase (_Unwind_Context *);
/* Interface functions: */
_Unwind_Reason_Code _Unwind_RaiseException(_Unwind_Control_Block *ucbp);
void __attribute__((noreturn)) _Unwind_Resume(_Unwind_Control_Block *ucbp);
_Unwind_Reason_Code _Unwind_Resume_or_Rethrow (_Unwind_Control_Block *ucbp);
typedef _Unwind_Reason_Code (*_Unwind_Stop_Fn)
(int, _Unwind_Action, _Unwind_Exception_Class,
_Unwind_Control_Block *, struct _Unwind_Context *, void *);
_Unwind_Reason_Code _Unwind_ForcedUnwind (_Unwind_Control_Block *,
_Unwind_Stop_Fn, void *);
/* @@@ Use unwind data to perform a stack backtrace. The trace callback
is called for every stack frame in the call chain, but no cleanup
actions are performed. */
typedef _Unwind_Reason_Code (*_Unwind_Trace_Fn) (_Unwind_Context *, void *);
_Unwind_Reason_Code _Unwind_Backtrace(_Unwind_Trace_Fn,
void*);
_Unwind_Word _Unwind_GetCFA (struct _Unwind_Context *);
void _Unwind_Complete(_Unwind_Control_Block *ucbp);
void _Unwind_DeleteException (_Unwind_Exception *);
_Unwind_Reason_Code __gnu_unwind_frame (_Unwind_Control_Block *,
_Unwind_Context *);
_Unwind_Reason_Code __gnu_unwind_execute (_Unwind_Context *,
__gnu_unwind_state *);
/* Decode an R_ARM_TARGET2 relocation. */
static inline _Unwind_Word
_Unwind_decode_target2 (_Unwind_Word ptr)
{
_Unwind_Word tmp;
tmp = *(_Unwind_Word *) ptr;
/* Zero values are always NULL. */
if (!tmp)
return 0;
#if (defined(linux) && !defined(__uClinux__)) || defined(__NetBSD__)
/* Pc-relative indirect. */
tmp += ptr;
tmp = *(_Unwind_Word *) tmp;
#elif defined(__symbian__) || defined(__uClinux__)
/* Absolute pointer. Nothing more to do. */
#else
/* Pc-relative pointer. */
tmp += ptr;
#endif
return tmp;
}
static inline _Unwind_Word
_Unwind_GetGR (_Unwind_Context *context, int regno)
{
_uw val;
_Unwind_VRS_Get (context, _UVRSC_CORE, regno, _UVRSD_UINT32, &val);
return val;
}
/* Return the address of the instruction, not the actual IP value. */
#define _Unwind_GetIP(context) \
(_Unwind_GetGR (context, 15) & ~(_Unwind_Word)1)
#define _Unwind_GetIPInfo(context, ip_before_insn) \
(*ip_before_insn = 0, _Unwind_GetGR (context, 15) & ~(_Unwind_Word)1)
static inline void
_Unwind_SetGR (_Unwind_Context *context, int regno, _Unwind_Word val)
{
_Unwind_VRS_Set (context, _UVRSC_CORE, regno, _UVRSD_UINT32, &val);
}
/* The dwarf unwinder doesn't understand arm/thumb state. We assume the
landing pad uses the same instruction set as the call site. */
#define _Unwind_SetIP(context, val) \
_Unwind_SetGR (context, 15, val | (_Unwind_GetGR (context, 15) & 1))
/* leb128 type numbers have a potentially unlimited size.
The target of the following definitions of _sleb128_t and _uleb128_t
is to have efficient data types large enough to hold the leb128 type
numbers used in the unwind code. */
typedef long _sleb128_t;
typedef unsigned long _uleb128_t;
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* defined UNWIND_ARM_H */
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