projects / thirdparty / gcc.git / blame
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|---|---|---|
| 0a35513e AH |
1 | /* Copyright (C) 2008, 2009, 2011 Free Software Foundation, Inc. |
| 2 | Contributed by Richard Henderson <rth@redhat.com>. | |
| 3 | ||
| 4 | This file is part of the GNU Transactional Memory Library (libitm). | |
| 5 | ||
| 6 | Libitm is free software; you can redistribute it and/or modify it | |
| 7 | under the terms of the GNU General Public License as published by | |
| 8 | the Free Software Foundation; either version 3 of the License, or | |
| 9 | (at your option) any later version. | |
| 10 | ||
| 11 | Libitm is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
| 13 | FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 14 | more details. | |
| 15 | ||
| 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/>. */ | |
| 24 | ||
| 25 | namespace GTM HIDDEN { | |
| 26 | ||
| 27 | #ifdef __x86_64__ | |
| 28 | /* ??? This doesn't work for Win64. */ | |
| 29 | typedef struct gtm_jmpbuf | |
| 30 | { | |
| 31 | void *cfa; | |
| 0a35513e AH |
32 | unsigned long rbx; |
| 33 | unsigned long rbp; | |
| 34 | unsigned long r12; | |
| 35 | unsigned long r13; | |
| 36 | unsigned long r14; | |
| 37 | unsigned long r15; | |
| 9848887a | 38 | unsigned long rip; |
| 0a35513e AH |
39 | } gtm_jmpbuf; |
| 40 | #else | |
| 41 | typedef struct gtm_jmpbuf | |
| 42 | { | |
| 43 | void *cfa; | |
| 44 | unsigned long ebx; | |
| 45 | unsigned long esi; | |
| 46 | unsigned long edi; | |
| 47 | unsigned long ebp; | |
| 48 | unsigned long eip; | |
| 49 | } gtm_jmpbuf; | |
| 50 | #endif | |
| 51 | ||
| 52 | /* x86 doesn't require strict alignment for the basic types. */ | |
| 53 | #define STRICT_ALIGNMENT 0 | |
| 54 | ||
| 55 | /* x86 uses a fixed page size of 4K. */ | |
| 56 | #define PAGE_SIZE 4096 | |
| 57 | #define FIXED_PAGE_SIZE 1 | |
| 58 | ||
| 59 | /* The size of one line in hardware caches (in bytes). */ | |
| 60 | #define HW_CACHELINE_SIZE 64 | |
| 61 | ||
| 62 | ||
| 63 | static inline void | |
| 64 | cpu_relax (void) | |
| 65 | { | |
| 66 | __asm volatile ("rep; nop" : : : "memory"); | |
| 67 | } | |
| 68 | ||
| 0a35513e AH |
69 | } // namespace GTM |
| 70 | ||
| 71 | // We'll be using some of the cpu builtins, and their associated types. | |
| 72 | #ifndef __cplusplus | |
| 73 | /* ??? It's broken for C++. */ | |
| 74 | #include <x86intrin.h> | |
| 75 | #else | |
| 76 | # ifdef __SSE2__ | |
| 77 | # include <emmintrin.h> | |
| 78 | # elif defined(__SSE__) | |
| 79 | # include <xmmintrin.h> | |
| 80 | # endif | |
| 81 | # ifdef __AVX__ | |
| 82 | # include <immintrin.h> | |
| 83 | # endif | |
| 84 | #endif |