The Tor Browser / file comparison
comparison: js/src/jit/mips/Architecture-mips.cpp
js/src/jit/mips/Architecture-mips.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:3d8b0902163e |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- | |
| 2 * vim: set ts=8 sts=4 et sw=4 tw=99: | |
| 3 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #include "jit/mips/Architecture-mips.h" | |
| 8 | |
| 9 #include <elf.h> | |
| 10 | |
| 11 #include <fcntl.h> | |
| 12 #include <unistd.h> | |
| 13 | |
| 14 #define HWCAP_MIPS (1 << 31) | |
| 15 #define HWCAP_FPU (1 << 0) | |
| 16 | |
| 17 namespace js { | |
| 18 namespace jit { | |
| 19 | |
| 20 uint32_t GetMIPSFlags() | |
| 21 { | |
| 22 static bool isSet = false; | |
| 23 static uint32_t flags = 0; | |
| 24 if (isSet) | |
| 25 return flags; | |
| 26 #if WTF_OS_LINUX | |
| 27 FILE *fp = fopen("/proc/cpuinfo", "r"); | |
| 28 if (!fp) | |
| 29 return false; | |
| 30 | |
| 31 char buf[1024]; | |
| 32 memset(buf, 0, sizeof(buf)); | |
| 33 fread(buf, sizeof(char), sizeof(buf)-1, fp); | |
| 34 fclose(fp); | |
| 35 if (strstr(buf, "FPU")) | |
| 36 flags |= HWCAP_FPU; | |
| 37 | |
| 38 isSet = true; | |
| 39 return flags; | |
| 40 #endif | |
| 41 | |
| 42 return false; | |
| 43 } | |
| 44 | |
| 45 bool hasFPU() | |
| 46 { | |
| 47 return js::jit::GetMIPSFlags() & HWCAP_FPU; | |
| 48 } | |
| 49 | |
| 50 Registers::Code | |
| 51 Registers::FromName(const char *name) | |
| 52 { | |
| 53 for (size_t i = 0; i < Total; i++) { | |
| 54 if (strcmp(GetName(i), name) == 0) | |
| 55 return Code(i); | |
| 56 } | |
| 57 | |
| 58 return Invalid; | |
| 59 } | |
| 60 | |
| 61 FloatRegisters::Code | |
| 62 FloatRegisters::FromName(const char *name) | |
| 63 { | |
| 64 for (size_t i = 0; i < Total; i++) { | |
| 65 if (strcmp(GetName(i), name) == 0) | |
| 66 return Code(i); | |
| 67 } | |
| 68 | |
| 69 return Invalid; | |
| 70 } | |
| 71 | |
| 72 | |
| 73 | |
| 74 } // namespace ion | |
| 75 } // namespace js | |
| 76 |
