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48b14f50 | 1 | /* Library support for -fsplit-stack. */ |
f1717362 | 2 | /* Copyright (C) 2009-2016 Free Software Foundation, Inc. |
48b14f50 | 3 | Contributed by Ian Lance Taylor <iant@google.com>. |
4 | ||
5 | This file is part of GCC. | |
6 | ||
7 | GCC is free software; you can redistribute it and/or modify it under | |
8 | the terms of the GNU General Public License as published by the Free | |
9 | Software Foundation; either version 3, or (at your option) any later | |
10 | version. | |
11 | ||
12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
16 | ||
17 | Under Section 7 of GPL version 3, you are granted additional | |
18 | permissions described in the GCC Runtime Library Exception, version | |
19 | 3.1, as published by the Free Software Foundation. | |
20 | ||
21 | You should have received a copy of the GNU General Public License and | |
22 | a copy of the GCC Runtime Library Exception along with this program; | |
23 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
24 | <http://www.gnu.org/licenses/>. */ | |
25 | ||
26 | /* This is a libgcc internal header file for functions shared between | |
27 | generic-morestack.c and generic-morestack-thread.c. The latter | |
28 | file is only used when linking with the pthread library. */ | |
29 | ||
30 | /* The stack segment structure, defined in generic-morestack.c. */ | |
31 | ||
32 | struct stack_segment; | |
33 | ||
34 | /* The list of stack segments for this thread. */ | |
35 | ||
36 | extern __thread struct stack_segment *__morestack_segments; | |
37 | ||
38 | /* Print the string MSG/LEN, the errno number ERR, and a newline on | |
39 | stderr, without using printf. Then crash. */ | |
40 | ||
41 | extern void __morestack_fail (const char *msg, size_t len, int err) | |
42 | __attribute__ ((noreturn, visibility ("hidden"))); | |
43 | ||
44 | /* Release stack segments. */ | |
45 | ||
46 | extern struct dynamic_allocation_blocks * | |
47 | __morestack_release_segments (struct stack_segment **, int) | |
48 | __attribute__ ((visibility ("hidden"))); | |
49 | ||
50 | /* Store the stack information in a processor dependent manner. */ | |
51 | ||
52 | extern void __stack_split_initialize (void) | |
53 | __attribute__ ((visibility ("hidden"))); |