]>
Commit | Line | Data |
---|---|---|
1e874273 | 1 | /* Header file for the C6X EABI unwinder |
7adcbafe | 2 | Copyright (C) 2011-2022 Free Software Foundation, Inc. |
1e874273 PB |
3 | |
4 | This file is free software; you can redistribute it and/or modify it | |
5 | under the terms of the GNU General Public License as published by the | |
6 | Free Software Foundation; either version 3, or (at your option) any | |
7 | later version. | |
8 | ||
9 | This file is distributed in the hope that it will be useful, but | |
10 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | General Public License for more details. | |
13 | ||
14 | Under Section 7 of GPL version 3, you are granted additional | |
15 | permissions described in the GCC Runtime Library Exception, version | |
16 | 3.1, as published by the Free Software Foundation. | |
17 | ||
18 | You should have received a copy of the GNU General Public License and | |
19 | a copy of the GCC Runtime Library Exception along with this program; | |
20 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
21 | <http://www.gnu.org/licenses/>. */ | |
22 | ||
23 | /* Language-independent unwinder header public defines. This contains both | |
24 | ABI defined objects, and GNU support routines. */ | |
25 | ||
26 | #ifndef UNWIND_C6X_H | |
27 | #define UNWIND_C6X_H | |
28 | ||
29 | /* Not really the ARM EABI, but pretty close. */ | |
30 | #include "unwind-arm-common.h" | |
31 | ||
32 | #define UNWIND_STACK_REG 31 | |
33 | /* Use A0 as a scratch register within the personality routine. */ | |
34 | #define UNWIND_POINTER_REG 0 | |
35 | ||
36 | #ifdef __cplusplus | |
37 | extern "C" { | |
38 | #endif | |
39 | _Unwind_Reason_Code __gnu_unwind_24bit (_Unwind_Context *, _uw, int); | |
40 | ||
41 | /* Decode an EH table reference to a typeinfo object. */ | |
42 | static inline _Unwind_Word | |
43 | _Unwind_decode_typeinfo_ptr (_Unwind_Ptr base, _Unwind_Word ptr) | |
44 | { | |
45 | _Unwind_Word tmp; | |
46 | ||
47 | tmp = *(_Unwind_Word *) ptr; | |
48 | /* Zero values are always NULL. */ | |
49 | if (!tmp) | |
50 | return 0; | |
51 | ||
52 | /* SB-relative indirect. Propagate the bottom 2 bits, which can | |
53 | contain referenceness information in gnu unwinding tables. */ | |
54 | tmp += base; | |
55 | tmp = *(_Unwind_Word *) (tmp & ~(_Unwind_Word)3) | (tmp & 3); | |
56 | return tmp; | |
57 | } | |
58 | ||
59 | #define _Unwind_GetIP(context) \ | |
60 | (_Unwind_GetGR (context, 33)) | |
61 | ||
62 | ||
63 | #define _Unwind_SetIP(context, val) \ | |
64 | _Unwind_SetGR (context, 33, val) | |
65 | ||
66 | #ifdef __cplusplus | |
67 | } /* extern "C" */ | |
68 | #endif | |
69 | ||
70 | #endif /* defined UNWIND_ARM_H */ |