projects / thirdparty / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| 11f30bb0 | 1 | /* Copyright (C) 2008, 2009, 2011, 2012 Free Software Foundation, Inc. |
| 0a35513e AH |
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 | #include "libitm_i.h" | |
| 26 | ||
| 27 | namespace GTM HIDDEN { | |
| 28 | ||
| 0a35513e AH |
29 | |
| 30 | void | |
| 11f30bb0 | 31 | gtm_undolog::rollback (size_t until_size) |
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32 | { |
| 33 | size_t i, n = undolog.size(); | |
| 34 | ||
| 35 | if (n > 0) | |
| 36 | { | |
| 37 | for (i = n; i-- > until_size; ) | |
| 38 | { | |
| 11f30bb0 TR |
39 | void *ptr = (void *) undolog[i--]; |
| 40 | size_t len = undolog[i]; | |
| 41 | size_t words = (len + sizeof(gtm_word) - 1) / sizeof(gtm_word); | |
| 42 | i -= words; | |
| 43 | __builtin_memcpy (ptr, &undolog[i], len); | |
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44 | } |
| 45 | } | |
| 46 | } | |
| 47 | ||
| 48 | void ITM_REGPARM | |
| 49 | GTM_LB (const void *ptr, size_t len) | |
| 50 | { | |
| 51 | gtm_thread *tx = gtm_thr(); | |
| 11f30bb0 | 52 | tx->undolog.log(ptr, len); |
| 0a35513e AH |
53 | } |
| 54 | ||
| 55 | } // namespace GTM | |
| 56 | ||
| 57 | using namespace GTM; | |
| 58 | ||
| 4408b086 RH |
59 | /* ??? Use configure to determine if aliases are supported. Or convince |
| 60 | the compiler to not just tail call this, but actually generate the | |
| 61 | same_body_alias itself. */ | |
| 62 | void ITM_REGPARM | |
| 63 | _ITM_LB (const void *ptr, size_t len) | |
| 64 | { | |
| 65 | GTM_LB (ptr, len); | |
| 66 | } | |
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67 | |
| 68 | #define ITM_LOG_DEF(T) \ | |
| 69 | void ITM_REGPARM _ITM_L##T (const _ITM_TYPE_##T *ptr) \ | |
| 70 | { GTM_LB (ptr, sizeof (*ptr)); } | |
| 71 | ||
| 72 | ITM_LOG_DEF(U1) | |
| 73 | ITM_LOG_DEF(U2) | |
| 74 | ITM_LOG_DEF(U4) | |
| 75 | ITM_LOG_DEF(U8) | |
| 76 | ITM_LOG_DEF(F) | |
| 77 | ITM_LOG_DEF(D) | |
| 78 | ITM_LOG_DEF(E) | |
| 79 | ITM_LOG_DEF(CF) | |
| 80 | ITM_LOG_DEF(CD) | |
| 81 | ITM_LOG_DEF(CE) |