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3a707ba5 | 1 | /* This file is the configuration file for Linux-based GNU systems |
2f86b22b | 2 | |
acaf905b | 3 | Copyright (C) 1985-1986, 1992, 1994, 1996, 1999, 2001-2012 |
e9bffc61 | 4 | Free Software Foundation, Inc. |
566e3587 | 5 | |
e05aebe9 GM |
6 | This file was put together by Michael K. Johnson and Rik Faith. |
7 | ||
566e3587 JB |
8 | This file is part of GNU Emacs. |
9 | ||
4b158629 | 10 | GNU Emacs is free software: you can redistribute it and/or modify |
566e3587 | 11 | it under the terms of the GNU General Public License as published by |
4b158629 GM |
12 | the Free Software Foundation, either version 3 of the License, or |
13 | (at your option) any later version. | |
566e3587 JB |
14 | |
15 | GNU Emacs is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
4b158629 | 21 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
566e3587 | 22 | |
e3177e43 AS |
23 | #ifdef __ia64__ |
24 | #define GC_MARK_SECONDARY_STACK() \ | |
25 | do { \ | |
26 | extern void *__libc_ia64_register_backing_store_base; \ | |
27 | __builtin_ia64_flushrs (); \ | |
28 | mark_memory (__libc_ia64_register_backing_store_base, \ | |
2adb6e85 | 29 | __builtin_ia64_bsp ()); \ |
e3177e43 AS |
30 | } while (0) |
31 | #endif | |
e091e1bd GM |
32 | |
33 | /* Tell that garbage collector that setjmp is known to save all | |
34 | registers relevant for conservative garbage collection in the jmp_buf. | |
35 | Not all the architectures are tested, but there are Debian packages | |
36 | for SCM and/or Guile on them, so the technique must work. See also | |
37 | comments in alloc.c concerning setjmp and gcc. Fixme: it's | |
38 | probably safe to just let the GCC conditional in AH_BOTTOM handle this. | |
39 | */ | |
40 | #if defined __i386__ || defined __sparc__ || defined __mc68000__ \ | |
41 | || defined __alpha__ || defined __mips__ || defined __s390__ \ | |
42 | || defined __arm__ || defined __powerpc__ || defined __amd64__ \ | |
43 | || defined __ia64__ || defined __sh__ | |
44 | #define GC_SETJMP_WORKS 1 | |
b948ce8b PE |
45 | #else |
46 | #define GC_MARK_STACK GC_USE_GCPROS_AS_BEFORE | |
bb15bd9a | 47 | #endif |