| Absolute File Name: | /home/opencoverage/opencoverage/guest-scripts/qtdeclarative/src/qtdeclarative/src/3rdparty/masm/assembler/CodeLocation.h |
| Source code | Switch to Preprocessed file |
| Line | Source | Count |
|---|---|---|
| 1 | /* | - |
| 2 | * Copyright (C) 2009 Apple Inc. All rights reserved. | - |
| 3 | * | - |
| 4 | * Redistribution and use in source and binary forms, with or without | - |
| 5 | * modification, are permitted provided that the following conditions | - |
| 6 | * are met: | - |
| 7 | * 1. Redistributions of source code must retain the above copyright | - |
| 8 | * notice, this list of conditions and the following disclaimer. | - |
| 9 | * 2. Redistributions in binary form must reproduce the above copyright | - |
| 10 | * notice, this list of conditions and the following disclaimer in the | - |
| 11 | * documentation and/or other materials provided with the distribution. | - |
| 12 | * | - |
| 13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY | - |
| 14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | - |
| 15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | - |
| 16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR | - |
| 17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | - |
| 18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | - |
| 19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | - |
| 20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | - |
| 21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | - |
| 22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | - |
| 23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | - |
| 24 | */ | - |
| 25 | - | |
| 26 | #ifndef CodeLocation_h | - |
| 27 | #define CodeLocation_h | - |
| 28 | - | |
| 29 | #include "MacroAssemblerCodeRef.h" | - |
| 30 | - | |
| 31 | #if ENABLE(ASSEMBLER) | - |
| 32 | - | |
| 33 | namespace JSC { | - |
| 34 | - | |
| 35 | class CodeLocationInstruction; | - |
| 36 | class CodeLocationLabel; | - |
| 37 | class CodeLocationJump; | - |
| 38 | class CodeLocationCall; | - |
| 39 | class CodeLocationNearCall; | - |
| 40 | class CodeLocationDataLabelCompact; | - |
| 41 | class CodeLocationDataLabel32; | - |
| 42 | class CodeLocationDataLabelPtr; | - |
| 43 | class CodeLocationConvertibleLoad; | - |
| 44 | - | |
| 45 | // The CodeLocation* types are all pretty much do-nothing wrappers around | - |
| 46 | // CodePtr (or MacroAssemblerCodePtr, to give it its full name). These | - |
| 47 | // classes only exist to provide type-safety when linking and patching code. | - |
| 48 | // | - |
| 49 | // The one new piece of functionallity introduced by these classes is the | - |
| 50 | // ability to create (or put another way, to re-discover) another CodeLocation | - |
| 51 | // at an offset from one you already know. When patching code to optimize it | - |
| 52 | // we often want to patch a number of instructions that are short, fixed | - |
| 53 | // offsets apart. To reduce memory overhead we will only retain a pointer to | - |
| 54 | // one of the instructions, and we will use the *AtOffset methods provided by | - |
| 55 | // CodeLocationCommon to find the other points in the code to modify. | - |
| 56 | class CodeLocationCommon : public MacroAssemblerCodePtr { | - |
| 57 | public: | - |
| 58 | CodeLocationInstruction instructionAtOffset(int offset); | - |
| 59 | CodeLocationLabel labelAtOffset(int offset); | - |
| 60 | CodeLocationJump jumpAtOffset(int offset); | - |
| 61 | CodeLocationCall callAtOffset(int offset); | - |
| 62 | CodeLocationNearCall nearCallAtOffset(int offset); | - |
| 63 | CodeLocationDataLabelPtr dataLabelPtrAtOffset(int offset); | - |
| 64 | CodeLocationDataLabel32 dataLabel32AtOffset(int offset); | - |
| 65 | CodeLocationDataLabelCompact dataLabelCompactAtOffset(int offset); | - |
| 66 | CodeLocationConvertibleLoad convertibleLoadAtOffset(int offset); | - |
| 67 | - | |
| 68 | protected: | - |
| 69 | CodeLocationCommon() | - |
| 70 | { | - |
| 71 | } | - |
| 72 | - | |
| 73 | CodeLocationCommon(MacroAssemblerCodePtr location) | - |
| 74 | : MacroAssemblerCodePtr(location) | - |
| 75 | { | - |
| 76 | } executed 612 times by 10 tests: end of blockExecuted by:
| 612 |
| 77 | }; | - |
| 78 | - | |
| 79 | class CodeLocationInstruction : public CodeLocationCommon { | - |
| 80 | public: | - |
| 81 | CodeLocationInstruction() {} | - |
| 82 | explicit CodeLocationInstruction(MacroAssemblerCodePtr location) | - |
| 83 | : CodeLocationCommon(location) {} never executed: end of block | 0 |
| 84 | explicit CodeLocationInstruction(void* location) | - |
| 85 | : CodeLocationCommon(MacroAssemblerCodePtr(location)) {} never executed: end of block | 0 |
| 86 | }; | - |
| 87 | - | |
| 88 | class CodeLocationLabel : public CodeLocationCommon { | - |
| 89 | public: | - |
| 90 | CodeLocationLabel() {} | - |
| 91 | explicit CodeLocationLabel(MacroAssemblerCodePtr location) | - |
| 92 | : CodeLocationCommon(location) {} never executed: end of block | 0 |
| 93 | explicit CodeLocationLabel(void* location) | - |
| 94 | : CodeLocationCommon(MacroAssemblerCodePtr(location)) {} executed 612 times by 10 tests: end of blockExecuted by:
| 612 |
| 95 | }; | - |
| 96 | - | |
| 97 | class CodeLocationJump : public CodeLocationCommon { | - |
| 98 | public: | - |
| 99 | CodeLocationJump() {} | - |
| 100 | explicit CodeLocationJump(MacroAssemblerCodePtr location) | - |
| 101 | : CodeLocationCommon(location) {} never executed: end of block | 0 |
| 102 | explicit CodeLocationJump(void* location) | - |
| 103 | : CodeLocationCommon(MacroAssemblerCodePtr(location)) {} never executed: end of block | 0 |
| 104 | }; | - |
| 105 | - | |
| 106 | class CodeLocationCall : public CodeLocationCommon { | - |
| 107 | public: | - |
| 108 | CodeLocationCall() {} | - |
| 109 | explicit CodeLocationCall(MacroAssemblerCodePtr location) | - |
| 110 | : CodeLocationCommon(location) {} never executed: end of block | 0 |
| 111 | explicit CodeLocationCall(void* location) | - |
| 112 | : CodeLocationCommon(MacroAssemblerCodePtr(location)) {} never executed: end of block | 0 |
| 113 | }; | - |
| 114 | - | |
| 115 | class CodeLocationNearCall : public CodeLocationCommon { | - |
| 116 | public: | - |
| 117 | CodeLocationNearCall() {} | - |
| 118 | explicit CodeLocationNearCall(MacroAssemblerCodePtr location) | - |
| 119 | : CodeLocationCommon(location) {} never executed: end of block | 0 |
| 120 | explicit CodeLocationNearCall(void* location) | - |
| 121 | : CodeLocationCommon(MacroAssemblerCodePtr(location)) {} never executed: end of block | 0 |
| 122 | }; | - |
| 123 | - | |
| 124 | class CodeLocationDataLabel32 : public CodeLocationCommon { | - |
| 125 | public: | - |
| 126 | CodeLocationDataLabel32() {} | - |
| 127 | explicit CodeLocationDataLabel32(MacroAssemblerCodePtr location) | - |
| 128 | : CodeLocationCommon(location) {} never executed: end of block | 0 |
| 129 | explicit CodeLocationDataLabel32(void* location) | - |
| 130 | : CodeLocationCommon(MacroAssemblerCodePtr(location)) {} never executed: end of block | 0 |
| 131 | }; | - |
| 132 | - | |
| 133 | class CodeLocationDataLabelCompact : public CodeLocationCommon { | - |
| 134 | public: | - |
| 135 | CodeLocationDataLabelCompact() { } | - |
| 136 | explicit CodeLocationDataLabelCompact(MacroAssemblerCodePtr location) | - |
| 137 | : CodeLocationCommon(location) { } never executed: end of block | 0 |
| 138 | explicit CodeLocationDataLabelCompact(void* location) | - |
| 139 | : CodeLocationCommon(MacroAssemblerCodePtr(location)) { } never executed: end of block | 0 |
| 140 | }; | - |
| 141 | - | |
| 142 | class CodeLocationDataLabelPtr : public CodeLocationCommon { | - |
| 143 | public: | - |
| 144 | CodeLocationDataLabelPtr() {} | - |
| 145 | explicit CodeLocationDataLabelPtr(MacroAssemblerCodePtr location) | - |
| 146 | : CodeLocationCommon(location) {} never executed: end of block | 0 |
| 147 | explicit CodeLocationDataLabelPtr(void* location) | - |
| 148 | : CodeLocationCommon(MacroAssemblerCodePtr(location)) {} never executed: end of block | 0 |
| 149 | }; | - |
| 150 | - | |
| 151 | class CodeLocationConvertibleLoad : public CodeLocationCommon { | - |
| 152 | public: | - |
| 153 | CodeLocationConvertibleLoad() { } | - |
| 154 | explicit CodeLocationConvertibleLoad(MacroAssemblerCodePtr location) | - |
| 155 | : CodeLocationCommon(location) { } never executed: end of block | 0 |
| 156 | explicit CodeLocationConvertibleLoad(void* location) | - |
| 157 | : CodeLocationCommon(MacroAssemblerCodePtr(location)) { } never executed: end of block | 0 |
| 158 | }; | - |
| 159 | - | |
| 160 | inline CodeLocationInstruction CodeLocationCommon::instructionAtOffset(int offset) | - |
| 161 | { | - |
| 162 | ASSERT_VALID_CODE_OFFSET(offset); | - |
| 163 | return CodeLocationInstruction(reinterpret_cast<char*>(dataLocation()) + offset); never executed: return CodeLocationInstruction(reinterpret_cast<char*>(dataLocation()) + offset); | 0 |
| 164 | } | - |
| 165 | - | |
| 166 | inline CodeLocationLabel CodeLocationCommon::labelAtOffset(int offset) | - |
| 167 | { | - |
| 168 | ASSERT_VALID_CODE_OFFSET(offset); | - |
| 169 | return CodeLocationLabel(reinterpret_cast<char*>(dataLocation()) + offset); never executed: return CodeLocationLabel(reinterpret_cast<char*>(dataLocation()) + offset); | 0 |
| 170 | } | - |
| 171 | - | |
| 172 | inline CodeLocationJump CodeLocationCommon::jumpAtOffset(int offset) | - |
| 173 | { | - |
| 174 | ASSERT_VALID_CODE_OFFSET(offset); | - |
| 175 | return CodeLocationJump(reinterpret_cast<char*>(dataLocation()) + offset); never executed: return CodeLocationJump(reinterpret_cast<char*>(dataLocation()) + offset); | 0 |
| 176 | } | - |
| 177 | - | |
| 178 | inline CodeLocationCall CodeLocationCommon::callAtOffset(int offset) | - |
| 179 | { | - |
| 180 | ASSERT_VALID_CODE_OFFSET(offset); | - |
| 181 | return CodeLocationCall(reinterpret_cast<char*>(dataLocation()) + offset); never executed: return CodeLocationCall(reinterpret_cast<char*>(dataLocation()) + offset); | 0 |
| 182 | } | - |
| 183 | - | |
| 184 | inline CodeLocationNearCall CodeLocationCommon::nearCallAtOffset(int offset) | - |
| 185 | { | - |
| 186 | ASSERT_VALID_CODE_OFFSET(offset); | - |
| 187 | return CodeLocationNearCall(reinterpret_cast<char*>(dataLocation()) + offset); never executed: return CodeLocationNearCall(reinterpret_cast<char*>(dataLocation()) + offset); | 0 |
| 188 | } | - |
| 189 | - | |
| 190 | inline CodeLocationDataLabelPtr CodeLocationCommon::dataLabelPtrAtOffset(int offset) | - |
| 191 | { | - |
| 192 | ASSERT_VALID_CODE_OFFSET(offset); | - |
| 193 | return CodeLocationDataLabelPtr(reinterpret_cast<char*>(dataLocation()) + offset); never executed: return CodeLocationDataLabelPtr(reinterpret_cast<char*>(dataLocation()) + offset); | 0 |
| 194 | } | - |
| 195 | - | |
| 196 | inline CodeLocationDataLabel32 CodeLocationCommon::dataLabel32AtOffset(int offset) | - |
| 197 | { | - |
| 198 | ASSERT_VALID_CODE_OFFSET(offset); | - |
| 199 | return CodeLocationDataLabel32(reinterpret_cast<char*>(dataLocation()) + offset); never executed: return CodeLocationDataLabel32(reinterpret_cast<char*>(dataLocation()) + offset); | 0 |
| 200 | } | - |
| 201 | - | |
| 202 | inline CodeLocationDataLabelCompact CodeLocationCommon::dataLabelCompactAtOffset(int offset) | - |
| 203 | { | - |
| 204 | ASSERT_VALID_CODE_OFFSET(offset); | - |
| 205 | return CodeLocationDataLabelCompact(reinterpret_cast<char*>(dataLocation()) + offset); never executed: return CodeLocationDataLabelCompact(reinterpret_cast<char*>(dataLocation()) + offset); | 0 |
| 206 | } | - |
| 207 | - | |
| 208 | inline CodeLocationConvertibleLoad CodeLocationCommon::convertibleLoadAtOffset(int offset) | - |
| 209 | { | - |
| 210 | ASSERT_VALID_CODE_OFFSET(offset); | - |
| 211 | return CodeLocationConvertibleLoad(reinterpret_cast<char*>(dataLocation()) + offset); never executed: return CodeLocationConvertibleLoad(reinterpret_cast<char*>(dataLocation()) + offset); | 0 |
| 212 | } | - |
| 213 | - | |
| 214 | } // namespace JSC | - |
| 215 | - | |
| 216 | #endif // ENABLE(ASSEMBLER) | - |
| 217 | - | |
| 218 | #endif // CodeLocation_h | - |
| Source code | Switch to Preprocessed file |