Stephen Hines | 4a68b1c | 2012-05-03 12:28:14 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2010-2012, The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "MCCacheWriter.h" |
| 18 | |
| 19 | #include "DebugHelper.h" |
Stephen Hines | 758d00c | 2012-05-03 12:30:15 -0700 | [diff] [blame] | 20 | #include "FileHandle.h" |
Stephen Hines | 97c92c2 | 2012-05-03 12:30:24 -0700 | [diff] [blame] | 21 | #include "Script.h" |
Stephen Hines | 4a68b1c | 2012-05-03 12:28:14 -0700 | [diff] [blame] | 22 | |
| 23 | #include <map> |
| 24 | #include <string> |
| 25 | #include <vector> |
| 26 | #include <utility> |
| 27 | |
| 28 | #include <stdint.h> |
| 29 | #include <stdlib.h> |
| 30 | #include <string.h> |
| 31 | |
| 32 | using namespace std; |
| 33 | |
| 34 | namespace bcc { |
| 35 | |
| 36 | MCCacheWriter::~MCCacheWriter() { |
| 37 | #define CHECK_AND_FREE(VAR) if (VAR) { free(VAR); } |
| 38 | |
| 39 | CHECK_AND_FREE(mpHeaderSection); |
| 40 | CHECK_AND_FREE(mpStringPoolSection); |
| 41 | CHECK_AND_FREE(mpDependencyTableSection); |
| 42 | CHECK_AND_FREE(mpPragmaListSection); |
| 43 | CHECK_AND_FREE(mpObjectSlotSection); |
| 44 | CHECK_AND_FREE(mpExportVarNameListSection); |
| 45 | CHECK_AND_FREE(mpExportFuncNameListSection); |
| 46 | |
| 47 | #undef CHECK_AND_FREE |
| 48 | } |
| 49 | |
Stephen Hines | 758d00c | 2012-05-03 12:30:15 -0700 | [diff] [blame] | 50 | bool MCCacheWriter::writeCacheFile(FileHandle *objFile, FileHandle *infoFile, |
Stephen Hines | 97c92c2 | 2012-05-03 12:30:24 -0700 | [diff] [blame] | 51 | Script *S, uint32_t libRS_threadable) { |
Stephen Hines | 758d00c | 2012-05-03 12:30:15 -0700 | [diff] [blame] | 52 | if (!objFile || objFile->getFD() < 0 || !infoFile || infoFile->getFD() < 0) { |
Stephen Hines | 4a68b1c | 2012-05-03 12:28:14 -0700 | [diff] [blame] | 53 | return false; |
| 54 | } |
| 55 | |
Stephen Hines | 758d00c | 2012-05-03 12:30:15 -0700 | [diff] [blame] | 56 | mObjFile = objFile; |
| 57 | mInfoFile = infoFile; |
Stephen Hines | 4a68b1c | 2012-05-03 12:28:14 -0700 | [diff] [blame] | 58 | mpOwner = S; |
| 59 | |
| 60 | bool result = prepareHeader(libRS_threadable) |
| 61 | && prepareDependencyTable() |
| 62 | && preparePragmaList() |
| 63 | && prepareExportVarNameList() |
| 64 | && prepareExportFuncNameList() |
| 65 | && prepareExportForEachNameList() |
| 66 | && prepareStringPool() |
| 67 | && prepareObjectSlotList() |
| 68 | && calcSectionOffset() |
| 69 | && writeAll() |
| 70 | ; |
| 71 | |
| 72 | return result; |
| 73 | } |
| 74 | |
| 75 | |
| 76 | bool MCCacheWriter::prepareHeader(uint32_t libRS_threadable) { |
| 77 | MCO_Header *header = (MCO_Header *)malloc(sizeof(MCO_Header)); |
| 78 | |
| 79 | if (!header) { |
| 80 | ALOGE("Unable to allocate for header.\n"); |
| 81 | return false; |
| 82 | } |
| 83 | |
| 84 | mpHeaderSection = header; |
| 85 | |
| 86 | // Initialize |
| 87 | memset(header, '\0', sizeof(MCO_Header)); |
| 88 | |
| 89 | // Magic word and version |
| 90 | memcpy(header->magic, MCO_MAGIC, 4); |
| 91 | memcpy(header->version, MCO_VERSION, 4); |
| 92 | |
| 93 | // Machine Integer Type |
| 94 | uint32_t number = 0x00000001; |
| 95 | header->endianness = (*reinterpret_cast<char *>(&number) == 1) ? 'e' : 'E'; |
| 96 | header->sizeof_off_t = sizeof(off_t); |
| 97 | header->sizeof_size_t = sizeof(size_t); |
| 98 | header->sizeof_ptr_t = sizeof(void *); |
| 99 | |
| 100 | // libRS is threadable dirty hack |
| 101 | // TODO: This should be removed in the future |
| 102 | header->libRS_threadable = libRS_threadable; |
| 103 | |
| 104 | return true; |
| 105 | } |
| 106 | |
| 107 | |
| 108 | bool MCCacheWriter::prepareDependencyTable() { |
| 109 | size_t tableSize = sizeof(MCO_DependencyTable) + |
| 110 | sizeof(MCO_Dependency) * mDependencies.size(); |
| 111 | |
| 112 | MCO_DependencyTable *tab = (MCO_DependencyTable *)malloc(tableSize); |
| 113 | |
| 114 | if (!tab) { |
| 115 | ALOGE("Unable to allocate for dependency table section.\n"); |
| 116 | return false; |
| 117 | } |
| 118 | |
| 119 | mpDependencyTableSection = tab; |
| 120 | mpHeaderSection->depend_tab_size = tableSize; |
| 121 | |
| 122 | tab->count = mDependencies.size(); |
| 123 | |
| 124 | size_t i = 0; |
Stephen Hines | 0f6b1d3 | 2012-05-03 12:29:33 -0700 | [diff] [blame] | 125 | for (map<string, pair<uint32_t, unsigned char const *> >::iterator |
Stephen Hines | 4a68b1c | 2012-05-03 12:28:14 -0700 | [diff] [blame] | 126 | I = mDependencies.begin(), E = mDependencies.end(); I != E; ++I, ++i) { |
| 127 | MCO_Dependency *dep = &tab->table[i]; |
| 128 | |
| 129 | dep->res_name_strp_index = addString(I->first.c_str(), I->first.size()); |
Stephen Hines | 0f6b1d3 | 2012-05-03 12:29:33 -0700 | [diff] [blame] | 130 | dep->res_type = I->second.first; |
| 131 | memcpy(dep->sha1, I->second.second, 20); |
Stephen Hines | 4a68b1c | 2012-05-03 12:28:14 -0700 | [diff] [blame] | 132 | } |
| 133 | |
| 134 | return true; |
| 135 | } |
| 136 | |
| 137 | bool MCCacheWriter::preparePragmaList() { |
| 138 | size_t pragmaCount = mpOwner->getPragmaCount(); |
| 139 | |
| 140 | size_t listSize = sizeof(MCO_PragmaList) + |
| 141 | sizeof(MCO_Pragma) * pragmaCount; |
| 142 | |
| 143 | MCO_PragmaList *list = (MCO_PragmaList *)malloc(listSize); |
| 144 | |
| 145 | if (!list) { |
| 146 | ALOGE("Unable to allocate for pragma list\n"); |
| 147 | return false; |
| 148 | } |
| 149 | |
| 150 | mpPragmaListSection = list; |
| 151 | mpHeaderSection->pragma_list_size = listSize; |
| 152 | |
| 153 | list->count = pragmaCount; |
| 154 | |
| 155 | vector<char const *> keyList(pragmaCount); |
| 156 | vector<char const *> valueList(pragmaCount); |
| 157 | mpOwner->getPragmaList(pragmaCount, &*keyList.begin(), &*valueList.begin()); |
| 158 | |
| 159 | for (size_t i = 0; i < pragmaCount; ++i) { |
| 160 | char const *key = keyList[i]; |
| 161 | char const *value = valueList[i]; |
| 162 | |
| 163 | size_t keyLen = strlen(key); |
| 164 | size_t valueLen = strlen(value); |
| 165 | |
| 166 | MCO_Pragma *pragma = &list->list[i]; |
| 167 | pragma->key_strp_index = addString(key, keyLen); |
| 168 | pragma->value_strp_index = addString(value, valueLen); |
| 169 | } |
| 170 | |
| 171 | return true; |
| 172 | } |
| 173 | |
| 174 | bool MCCacheWriter::prepareStringPool() { |
| 175 | // Calculate string pool size |
| 176 | size_t size = sizeof(MCO_StringPool) + |
| 177 | sizeof(MCO_String) * mStringPool.size(); |
| 178 | |
| 179 | off_t strOffset = size; |
| 180 | |
| 181 | for (size_t i = 0; i < mStringPool.size(); ++i) { |
| 182 | size += mStringPool[i].second + 1; |
| 183 | } |
| 184 | |
| 185 | // Create string pool |
| 186 | MCO_StringPool *pool = (MCO_StringPool *)malloc(size); |
| 187 | |
| 188 | if (!pool) { |
| 189 | ALOGE("Unable to allocate string pool.\n"); |
| 190 | return false; |
| 191 | } |
| 192 | |
| 193 | mpStringPoolSection = pool; |
| 194 | mpHeaderSection->str_pool_size = size; |
| 195 | |
| 196 | pool->count = mStringPool.size(); |
| 197 | |
| 198 | char *strPtr = reinterpret_cast<char *>(pool) + strOffset; |
| 199 | |
| 200 | for (size_t i = 0; i < mStringPool.size(); ++i) { |
| 201 | MCO_String *str = &pool->list[i]; |
| 202 | |
| 203 | str->length = mStringPool[i].second; |
| 204 | str->offset = strOffset; |
| 205 | memcpy(strPtr, mStringPool[i].first, str->length); |
| 206 | |
| 207 | strPtr += str->length; |
| 208 | *strPtr++ = '\0'; |
| 209 | |
| 210 | strOffset += str->length + 1; |
| 211 | } |
| 212 | |
| 213 | return true; |
| 214 | } |
| 215 | |
| 216 | |
| 217 | bool MCCacheWriter::prepareExportVarNameList() { |
| 218 | size_t varCount = mpOwner->getExportVarCount(); |
| 219 | size_t listSize = sizeof(MCO_String_Ptr) + sizeof(size_t) * varCount; |
| 220 | |
| 221 | MCO_String_Ptr *list = (MCO_String_Ptr*)malloc(listSize); |
| 222 | |
| 223 | if (!list) { |
| 224 | ALOGE("Unable to allocate for export variable name list\n"); |
| 225 | return false; |
| 226 | } |
| 227 | |
| 228 | mpExportVarNameListSection = list; |
| 229 | mpHeaderSection->export_var_name_list_size = listSize; |
| 230 | |
| 231 | list->count = static_cast<size_t>(varCount); |
| 232 | |
| 233 | mpOwner->getExportVarNameList(varNameList); |
| 234 | for (size_t i = 0; i < varCount; ++i) { |
| 235 | list->strp_indexs[i] = addString(varNameList[i].c_str(), varNameList[i].length()); |
| 236 | } |
| 237 | return true; |
| 238 | } |
| 239 | |
| 240 | |
| 241 | bool MCCacheWriter::prepareExportFuncNameList() { |
| 242 | size_t funcCount = mpOwner->getExportFuncCount(); |
| 243 | size_t listSize = sizeof(MCO_String_Ptr) + sizeof(size_t) * funcCount; |
| 244 | |
| 245 | MCO_String_Ptr *list = (MCO_String_Ptr*)malloc(listSize); |
| 246 | |
| 247 | if (!list) { |
| 248 | ALOGE("Unable to allocate for export function name list\n"); |
| 249 | return false; |
| 250 | } |
| 251 | |
| 252 | mpExportFuncNameListSection = list; |
| 253 | mpHeaderSection->export_func_name_list_size = listSize; |
| 254 | |
| 255 | list->count = static_cast<size_t>(funcCount); |
| 256 | |
| 257 | mpOwner->getExportFuncNameList(funcNameList); |
| 258 | for (size_t i = 0; i < funcCount; ++i) { |
| 259 | list->strp_indexs[i] = addString(funcNameList[i].c_str(), funcNameList[i].length()); |
| 260 | } |
| 261 | return true; |
| 262 | } |
| 263 | |
| 264 | |
| 265 | bool MCCacheWriter::prepareExportForEachNameList() { |
| 266 | size_t forEachCount = mpOwner->getExportForEachCount(); |
| 267 | size_t listSize = sizeof(MCO_String_Ptr) + sizeof(size_t) * forEachCount; |
| 268 | |
| 269 | MCO_String_Ptr *list = (MCO_String_Ptr*)malloc(listSize); |
| 270 | |
| 271 | if (!list) { |
| 272 | ALOGE("Unable to allocate for export forEach name list\n"); |
| 273 | return false; |
| 274 | } |
| 275 | |
| 276 | mpExportForEachNameListSection = list; |
| 277 | mpHeaderSection->export_foreach_name_list_size = listSize; |
| 278 | |
| 279 | list->count = static_cast<size_t>(forEachCount); |
| 280 | |
| 281 | mpOwner->getExportForEachNameList(forEachNameList); |
| 282 | for (size_t i = 0; i < forEachCount; ++i) { |
| 283 | list->strp_indexs[i] = addString(forEachNameList[i].c_str(), forEachNameList[i].length()); |
| 284 | } |
| 285 | return true; |
| 286 | } |
| 287 | |
| 288 | |
| 289 | bool MCCacheWriter::prepareObjectSlotList() { |
| 290 | size_t objectSlotCount = mpOwner->getObjectSlotCount(); |
| 291 | |
| 292 | size_t listSize = sizeof(MCO_ObjectSlotList) + |
| 293 | sizeof(uint32_t) * objectSlotCount; |
| 294 | |
| 295 | MCO_ObjectSlotList *list = (MCO_ObjectSlotList *)malloc(listSize); |
| 296 | |
| 297 | if (!list) { |
| 298 | ALOGE("Unable to allocate for object slot list\n"); |
| 299 | return false; |
| 300 | } |
| 301 | |
| 302 | mpObjectSlotSection = list; |
| 303 | mpHeaderSection->object_slot_list_size = listSize; |
| 304 | |
| 305 | list->count = objectSlotCount; |
| 306 | |
| 307 | mpOwner->getObjectSlotList(objectSlotCount, list->object_slot_list); |
| 308 | return true; |
| 309 | } |
| 310 | |
| 311 | |
| 312 | bool MCCacheWriter::calcSectionOffset() { |
| 313 | size_t offset = sizeof(MCO_Header); |
| 314 | |
| 315 | #define OFFSET_INCREASE(NAME) \ |
| 316 | do { \ |
| 317 | /* Align to a word */ \ |
| 318 | size_t rem = offset % sizeof(int); \ |
| 319 | if (rem > 0) { \ |
| 320 | offset += sizeof(int) - rem; \ |
| 321 | } \ |
| 322 | \ |
| 323 | /* Save the offset and increase it */ \ |
| 324 | mpHeaderSection->NAME##_offset = offset; \ |
| 325 | offset += mpHeaderSection->NAME##_size; \ |
| 326 | } while (0) |
| 327 | |
| 328 | OFFSET_INCREASE(str_pool); |
| 329 | OFFSET_INCREASE(depend_tab); |
| 330 | OFFSET_INCREASE(pragma_list); |
| 331 | OFFSET_INCREASE(func_table); |
| 332 | OFFSET_INCREASE(object_slot_list); |
| 333 | OFFSET_INCREASE(export_var_name_list); |
| 334 | OFFSET_INCREASE(export_func_name_list); |
| 335 | OFFSET_INCREASE(export_foreach_name_list); |
| 336 | |
| 337 | #undef OFFSET_INCREASE |
| 338 | |
| 339 | return true; |
| 340 | } |
| 341 | |
| 342 | |
| 343 | bool MCCacheWriter::writeAll() { |
| 344 | #define WRITE_SECTION(NAME, OFFSET, SIZE, SECTION) \ |
| 345 | do { \ |
Stephen Hines | 758d00c | 2012-05-03 12:30:15 -0700 | [diff] [blame] | 346 | if (mInfoFile->seek(OFFSET, SEEK_SET) == -1) { \ |
| 347 | ALOGE("Unable to seek to " #NAME " section for writing.\n"); \ |
Stephen Hines | 4a68b1c | 2012-05-03 12:28:14 -0700 | [diff] [blame] | 348 | return false; \ |
| 349 | } \ |
| 350 | \ |
| 351 | if (mInfoFile->write(reinterpret_cast<char *>(SECTION), (SIZE)) != \ |
| 352 | static_cast<ssize_t>(SIZE)) { \ |
Stephen Hines | 758d00c | 2012-05-03 12:30:15 -0700 | [diff] [blame] | 353 | ALOGE("Unable to write " #NAME " section to cache file.\n"); \ |
Stephen Hines | 4a68b1c | 2012-05-03 12:28:14 -0700 | [diff] [blame] | 354 | return false; \ |
| 355 | } \ |
| 356 | } while (0) |
| 357 | |
| 358 | #define WRITE_SECTION_SIMPLE(NAME, SECTION) \ |
| 359 | WRITE_SECTION(NAME, \ |
| 360 | mpHeaderSection->NAME##_offset, \ |
| 361 | mpHeaderSection->NAME##_size, \ |
| 362 | SECTION) |
| 363 | |
| 364 | WRITE_SECTION(header, 0, sizeof(MCO_Header), mpHeaderSection); |
| 365 | |
| 366 | WRITE_SECTION_SIMPLE(str_pool, mpStringPoolSection); |
| 367 | WRITE_SECTION_SIMPLE(depend_tab, mpDependencyTableSection); |
| 368 | WRITE_SECTION_SIMPLE(pragma_list, mpPragmaListSection); |
| 369 | WRITE_SECTION_SIMPLE(object_slot_list, mpObjectSlotSection); |
| 370 | |
| 371 | WRITE_SECTION_SIMPLE(export_var_name_list, mpExportVarNameListSection); |
| 372 | WRITE_SECTION_SIMPLE(export_func_name_list, mpExportFuncNameListSection); |
| 373 | WRITE_SECTION_SIMPLE(export_foreach_name_list, mpExportForEachNameListSection); |
| 374 | |
| 375 | #undef WRITE_SECTION_SIMPLE |
| 376 | #undef WRITE_SECTION |
| 377 | |
| 378 | if (static_cast<size_t>(mObjFile->write(mpOwner->getELF(), |
| 379 | mpOwner->getELFSize())) |
| 380 | != mpOwner->getELFSize()) { |
| 381 | ALOGE("Unable to write ELF to cache file.\n"); |
| 382 | return false; |
| 383 | } |
| 384 | |
| 385 | return true; |
| 386 | } |
| 387 | |
| 388 | } // namespace bcc |