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6eb065e6 | 1 | /* DWARF2 frame unwind data structure for Xtensa. |
a5544970 | 2 | Copyright (C) 1997-2019 Free Software Foundation, Inc. |
6eb065e6 SA |
3 | |
4 | This file is part of GCC. | |
5 | ||
6 | GCC is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU General Public License as published by | |
748086b7 | 8 | the Free Software Foundation; either version 3, or (at your option) |
6eb065e6 SA |
9 | any later version. |
10 | ||
6eb065e6 SA |
11 | GCC is distributed in the hope that it will be useful, but WITHOUT |
12 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
13 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
14 | License for more details. | |
15 | ||
748086b7 JJ |
16 | Under Section 7 of GPL version 3, you are granted additional |
17 | permissions described in the GCC Runtime Library Exception, version | |
18 | 3.1, as published by the Free Software Foundation. | |
19 | ||
20 | You should have received a copy of the GNU General Public License and | |
21 | a copy of the GCC Runtime Library Exception along with this program; | |
22 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 | <http://www.gnu.org/licenses/>. */ | |
6eb065e6 | 24 | |
6eb065e6 SA |
25 | /* Xtensa's variable-size register window save areas can be unwound without |
26 | any unwind info. This is a stripped down version of the standard DWARF | |
27 | _Unwind_FrameState. */ | |
28 | typedef struct | |
29 | { | |
6eb065e6 SA |
30 | /* The information we care about from the CIE/FDE. */ |
31 | _Unwind_Personality_Fn personality; | |
32 | _Unwind_Word retaddr_column; | |
33 | unsigned char fde_encoding; | |
34 | unsigned char lsda_encoding; | |
35 | unsigned char saw_z; | |
36 | unsigned char signal_frame; | |
37 | void *eh_ptr; | |
38 | ||
39 | /* Saved registers for a signal frame. */ | |
40 | _Unwind_Word *signal_regs; | |
6c633d45 | 41 | _Unwind_Word signal_ra; |
6eb065e6 SA |
42 | } _Unwind_FrameState; |
43 |