1 /* 2 * Copyright 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 //#define LOG_NDEBUG 0 18 #include "bcc/Renderscript/RSInfo.h" 19 20 #include <dlfcn.h> 21 22 #include <cstring> 23 #include <new> 24 25 #include "bcc/Support/FileBase.h" 26 #include "bcc/Support/Log.h" 27 28 #include <cutils/properties.h> 29 30 using namespace bcc; 31 32 const char RSInfo::LibBCCPath[] = "/system/lib/libbcc.so"; 33 const char RSInfo::LibRSPath[] = "/system/lib/libRS.so"; 34 const char RSInfo::LibCLCorePath[] = "/system/lib/libclcore.bc"; 35 #if defined(ARCH_ARM_HAVE_NEON) 36 const char RSInfo::LibCLCoreNEONPath[] = "/system/lib/libclcore_neon.bc"; 37 #endif 38 39 const uint8_t *RSInfo::LibBCCSHA1 = NULL; 40 const uint8_t *RSInfo::LibRSSHA1 = NULL; 41 const uint8_t *RSInfo::LibCLCoreSHA1 = NULL; 42 #if defined(ARCH_ARM_HAVE_NEON) 43 const uint8_t *RSInfo::LibCLCoreNEONSHA1 = NULL; 44 #endif 45 46 void RSInfo::LoadBuiltInSHA1Information() { 47 if (LibBCCSHA1 != NULL) { 48 // Loaded before. 49 return; 50 } 51 52 void *h = ::dlopen("/system/lib/libbcc.sha1.so", RTLD_LAZY | RTLD_NOW); 53 if (h == NULL) { 54 ALOGE("Failed to load SHA-1 information from shared library '" 55 "/system/lib/libbcc.sha1.so'! (%s)", ::dlerror()); 56 return; 57 } 58 59 LibBCCSHA1 = reinterpret_cast<const uint8_t *>(::dlsym(h, "libbcc_so_SHA1")); 60 LibRSSHA1 = reinterpret_cast<const uint8_t *>(::dlsym(h, "libRS_so_SHA1")); 61 LibCLCoreSHA1 = 62 reinterpret_cast<const uint8_t *>(::dlsym(h, "libclcore_bc_SHA1")); 63 #if defined(ARCH_ARM_HAVE_NEON) 64 LibCLCoreNEONSHA1 = 65 reinterpret_cast<const uint8_t *>(::dlsym(h, "libclcore_neon_bc_SHA1")); 66 #endif 67 68 return; 69 } 70 71 android::String8 RSInfo::GetPath(const FileBase &pFile) { 72 android::String8 result(pFile.getName().c_str()); 73 result.append(".info"); 74 return result; 75 } 76 77 #define PRINT_DEPENDENCY(PREFIX, N, X) \ 78 ALOGV("\t" PREFIX "Source name: %s, " \ 79 "SHA-1: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x" \ 80 "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x", \ 81 (N), (X)[ 0], (X)[ 1], (X)[ 2], (X)[ 3], (X)[ 4], (X)[ 5], \ 82 (X)[ 6], (X)[ 7], (X)[ 8], (X)[ 9], (X)[10], (X)[11], \ 83 (X)[12], (X)[13], (X)[14], (X)[15], (X)[16], (X)[17], \ 84 (X)[18], (X)[19]); 85 86 bool RSInfo::CheckDependency(const RSInfo &pInfo, 87 const char *pInputFilename, 88 const DependencyTableTy &pDeps) { 89 // Built-in dependencies are libbcc.so, libRS.so and libclcore.bc plus 90 // libclcore_neon.bc if NEON is available on the target device. 91 #if !defined(ARCH_ARM_HAVE_NEON) 92 static const unsigned NumBuiltInDependencies = 3; 93 #else 94 static const unsigned NumBuiltInDependencies = 4; 95 #endif 96 97 LoadBuiltInSHA1Information(); 98 99 if (pInfo.mDependencyTable.size() != (pDeps.size() + NumBuiltInDependencies)) { 100 ALOGD("Number of dependencies recorded mismatch (%lu v.s. %lu) in %s!", 101 static_cast<unsigned long>(pInfo.mDependencyTable.size()), 102 static_cast<unsigned long>(pDeps.size()), pInputFilename); 103 return false; 104 } else { 105 // Built-in dependencies always go first. 106 const std::pair<const char *, const uint8_t *> &cache_libbcc_dep = 107 pInfo.mDependencyTable[0]; 108 const std::pair<const char *, const uint8_t *> &cache_libRS_dep = 109 pInfo.mDependencyTable[1]; 110 const std::pair<const char *, const uint8_t *> &cache_libclcore_dep = 111 pInfo.mDependencyTable[2]; 112 #if defined(ARCH_ARM_HAVE_NEON) 113 const std::pair<const char *, const uint8_t *> &cache_libclcore_neon_dep = 114 pInfo.mDependencyTable[3]; 115 #endif 116 117 // Check libbcc.so. 118 if (::memcmp(cache_libbcc_dep.second, LibBCCSHA1, SHA1_DIGEST_LENGTH) != 0) { 119 ALOGD("Cache %s is dirty due to %s has been updated.", pInputFilename, 120 LibBCCPath); 121 PRINT_DEPENDENCY("current - ", LibBCCPath, LibBCCSHA1); 122 PRINT_DEPENDENCY("cache - ", cache_libbcc_dep.first, 123 cache_libbcc_dep.second); 124 return false; 125 } 126 127 // Check libRS.so. 128 if (::memcmp(cache_libRS_dep.second, LibRSSHA1, SHA1_DIGEST_LENGTH) != 0) { 129 ALOGD("Cache %s is dirty due to %s has been updated.", pInputFilename, 130 LibRSPath); 131 PRINT_DEPENDENCY("current - ", LibRSPath, LibRSSHA1); 132 PRINT_DEPENDENCY("cache - ", cache_libRS_dep.first, 133 cache_libRS_dep.second); 134 return false; 135 } 136 137 // Check libclcore.bc. 138 if (::memcmp(cache_libclcore_dep.second, LibCLCoreSHA1, 139 SHA1_DIGEST_LENGTH) != 0) { 140 ALOGD("Cache %s is dirty due to %s has been updated.", pInputFilename, 141 LibRSPath); 142 PRINT_DEPENDENCY("current - ", LibCLCorePath, LibCLCoreSHA1); 143 PRINT_DEPENDENCY("cache - ", cache_libclcore_dep.first, 144 cache_libclcore_dep.second); 145 return false; 146 } 147 148 #if defined(ARCH_ARM_HAVE_NEON) 149 // Check libclcore_neon.bc if NEON is available. 150 if (::memcmp(cache_libclcore_neon_dep.second, LibCLCoreNEONSHA1, 151 SHA1_DIGEST_LENGTH) != 0) { 152 ALOGD("Cache %s is dirty due to %s has been updated.", pInputFilename, 153 LibRSPath); 154 PRINT_DEPENDENCY("current - ", LibCLCoreNEONPath, LibCLCoreNEONSHA1); 155 PRINT_DEPENDENCY("cache - ", cache_libclcore_neon_dep.first, 156 cache_libclcore_neon_dep.second); 157 return false; 158 } 159 #endif 160 161 for (unsigned i = 0; i < pDeps.size(); i++) { 162 const std::pair<const char *, const uint8_t *> &cache_dep = 163 pInfo.mDependencyTable[i + NumBuiltInDependencies]; 164 165 if ((::strcmp(pDeps[i].first, cache_dep.first) != 0) || 166 (::memcmp(pDeps[i].second, cache_dep.second, 167 SHA1_DIGEST_LENGTH) != 0)) { 168 ALOGD("Cache %s is dirty due to the source it dependends on has been " 169 "changed:", pInputFilename); 170 PRINT_DEPENDENCY("given - ", pDeps[i].first, pDeps[i].second); 171 PRINT_DEPENDENCY("cache - ", cache_dep.first, cache_dep.second); 172 return false; 173 } 174 } 175 } 176 177 return true; 178 } 179 180 RSInfo::RSInfo(size_t pStringPoolSize) : mStringPool(NULL) { 181 ::memset(&mHeader, 0, sizeof(mHeader)); 182 183 ::memcpy(mHeader.magic, RSINFO_MAGIC, sizeof(mHeader.magic)); 184 ::memcpy(mHeader.version, RSINFO_VERSION, sizeof(mHeader.version)); 185 186 mHeader.headerSize = sizeof(mHeader); 187 188 mHeader.dependencyTable.itemSize = sizeof(rsinfo::DependencyTableItem); 189 mHeader.pragmaList.itemSize = sizeof(rsinfo::PragmaItem); 190 mHeader.objectSlotList.itemSize = sizeof(rsinfo::ObjectSlotItem); 191 mHeader.exportVarNameList.itemSize = sizeof(rsinfo::ExportVarNameItem); 192 mHeader.exportFuncNameList.itemSize = sizeof(rsinfo::ExportFuncNameItem); 193 mHeader.exportForeachFuncList.itemSize = sizeof(rsinfo::ExportForeachFuncItem); 194 195 if (pStringPoolSize > 0) { 196 mHeader.strPoolSize = pStringPoolSize; 197 mStringPool = new (std::nothrow) char [ mHeader.strPoolSize ]; 198 if (mStringPool == NULL) { 199 ALOGE("Out of memory when allocate memory for string pool in RSInfo " 200 "constructor (size: %u)!", mHeader.strPoolSize); 201 } 202 } 203 } 204 205 RSInfo::~RSInfo() { 206 delete [] mStringPool; 207 } 208 209 bool RSInfo::layout(off_t initial_offset) { 210 mHeader.dependencyTable.offset = initial_offset + 211 mHeader.headerSize + 212 mHeader.strPoolSize; 213 mHeader.dependencyTable.count = mDependencyTable.size(); 214 215 #define AFTER(_list) ((_list).offset + (_list).itemSize * (_list).count) 216 mHeader.pragmaList.offset = AFTER(mHeader.dependencyTable); 217 mHeader.pragmaList.count = mPragmas.size(); 218 219 mHeader.objectSlotList.offset = AFTER(mHeader.pragmaList); 220 mHeader.objectSlotList.count = mObjectSlots.size(); 221 222 mHeader.exportVarNameList.offset = AFTER(mHeader.objectSlotList); 223 mHeader.exportVarNameList.count = mExportVarNames.size(); 224 225 mHeader.exportFuncNameList.offset = AFTER(mHeader.exportVarNameList); 226 mHeader.exportFuncNameList.count = mExportFuncNames.size(); 227 228 mHeader.exportForeachFuncList.offset = AFTER(mHeader.exportFuncNameList); 229 mHeader.exportForeachFuncList.count = mExportForeachFuncs.size(); 230 #undef AFTER 231 232 return true; 233 } 234 235 void RSInfo::dump() const { 236 // Hide the codes to save the code size when debugging is disabled. 237 #if !LOG_NDEBUG 238 239 // Dump header 240 ALOGV("RSInfo Header:"); 241 ALOGV("\tIs threadable: %s", ((mHeader.isThreadable) ? "true" : "false")); 242 ALOGV("\tHeader size: %u", mHeader.headerSize); 243 ALOGV("\tString pool size: %u", mHeader.strPoolSize); 244 245 #define DUMP_LIST_HEADER(_name, _header) do { \ 246 ALOGV(_name ":"); \ 247 ALOGV("\toffset: %u", (_header).offset); \ 248 ALOGV("\t# of item: %u", (_header).count); \ 249 ALOGV("\tsize of each item: %u", (_header).itemSize); \ 250 } while (false) 251 DUMP_LIST_HEADER("Dependency table", mHeader.dependencyTable); 252 for (DependencyTableTy::const_iterator dep_iter = mDependencyTable.begin(), 253 dep_end = mDependencyTable.end(); dep_iter != dep_end; dep_iter++) { 254 PRINT_DEPENDENCY("", dep_iter->first, dep_iter->second); 255 } 256 257 DUMP_LIST_HEADER("Pragma list", mHeader.pragmaList); 258 for (PragmaListTy::const_iterator pragma_iter = mPragmas.begin(), 259 pragma_end = mPragmas.end(); pragma_iter != pragma_end; pragma_iter++) { 260 ALOGV("\tkey: %s, value: %s", pragma_iter->first, pragma_iter->second); 261 } 262 263 DUMP_LIST_HEADER("RS object slots", mHeader.objectSlotList); 264 for (ObjectSlotListTy::const_iterator slot_iter = mObjectSlots.begin(), 265 slot_end = mObjectSlots.end(); slot_iter != slot_end; slot_iter++) { 266 ALOGV("slot: %u", *slot_iter); 267 } 268 269 DUMP_LIST_HEADER("RS export variables", mHeader.exportVarNameList); 270 for (ExportVarNameListTy::const_iterator var_iter = mExportVarNames.begin(), 271 var_end = mExportVarNames.end(); var_iter != var_end; var_iter++) { 272 ALOGV("name: %s", *var_iter); 273 } 274 275 DUMP_LIST_HEADER("RS export functions", mHeader.exportFuncNameList); 276 for (ExportFuncNameListTy::const_iterator func_iter = mExportFuncNames.begin(), 277 func_end = mExportFuncNames.end(); func_iter != func_end; func_iter++) { 278 ALOGV("name: %s", *func_iter); 279 } 280 281 DUMP_LIST_HEADER("RS foreach list", mHeader.exportForeachFuncList); 282 for (ExportForeachFuncListTy::const_iterator 283 foreach_iter = mExportForeachFuncs.begin(), 284 foreach_end = mExportForeachFuncs.end(); foreach_iter != foreach_end; 285 foreach_iter++) { 286 ALOGV("name: %s, signature: %05x", foreach_iter->first, 287 foreach_iter->second); 288 } 289 #undef DUMP_LIST_HEADER 290 291 #endif // LOG_NDEBUG 292 return; 293 } 294 295 const char *RSInfo::getStringFromPool(rsinfo::StringIndexTy pStrIdx) const { 296 // String pool uses direct indexing. Ensure that the pStrIdx is within the 297 // range. 298 if (pStrIdx >= mHeader.strPoolSize) { 299 ALOGE("String index #%u is out of range in string pool (size: %u)!", 300 pStrIdx, mHeader.strPoolSize); 301 return NULL; 302 } 303 return &mStringPool[ pStrIdx ]; 304 } 305 306 rsinfo::StringIndexTy RSInfo::getStringIdxInPool(const char *pStr) const { 307 // Assume we are on the flat memory architecture (i.e., the memory space is 308 // continuous.) 309 if ((mStringPool + mHeader.strPoolSize) < pStr) { 310 ALOGE("String %s does not in the string pool!", pStr); 311 return rsinfo::gInvalidStringIndex; 312 } 313 return (pStr - mStringPool); 314 } 315 316 RSInfo::FloatPrecision RSInfo::getFloatPrecisionRequirement() const { 317 // Check to see if we have any FP precision-related pragmas. 318 static const char relaxed_pragma[] = "rs_fp_relaxed"; 319 static const char imprecise_pragma[] = "rs_fp_imprecise"; 320 static const char full_pragma[] = "rs_fp_full"; 321 bool relaxed_pragma_seen = false; 322 RSInfo::FloatPrecision result; 323 324 for (PragmaListTy::const_iterator pragma_iter = mPragmas.begin(), 325 pragma_end = mPragmas.end(); pragma_iter != pragma_end; 326 pragma_iter++) { 327 const char *pragma_key = pragma_iter->first; 328 if (::strcmp(pragma_key, relaxed_pragma) == 0) { 329 relaxed_pragma_seen = true; 330 } else if (::strcmp(pragma_key, imprecise_pragma) == 0) { 331 if (relaxed_pragma_seen) { 332 ALOGW("Multiple float precision pragmas specified!"); 333 } 334 // Fast return when there's rs_fp_imprecise specified. 335 result = FP_Imprecise; 336 } 337 } 338 339 // Imprecise is selected over Relaxed precision. 340 // In the absence of both, we stick to the default Full precision. 341 if (relaxed_pragma_seen) { 342 result = FP_Relaxed; 343 } else { 344 result = FP_Full; 345 } 346 347 // Provide an override for precsion via adb shell setprop 348 // adb shell setprop debug.rs.precision rs_fp_full 349 // adb shell setprop debug.rs.precision rs_fp_relaxed 350 // adb shell setprop debug.rs.precision rs_fp_imprecise 351 char precision_prop_buf[PROPERTY_VALUE_MAX]; 352 property_get("debug.rs.precision", precision_prop_buf, ""); 353 354 if (precision_prop_buf[0]) { 355 if (::strcmp(precision_prop_buf, relaxed_pragma) == 0) { 356 ALOGI("Switching to RS FP relaxed mode via setprop"); 357 result = FP_Relaxed; 358 } else if (::strcmp(precision_prop_buf, imprecise_pragma) == 0) { 359 ALOGI("Switching to RS FP imprecise mode via setprop"); 360 result = FP_Imprecise; 361 } else if (::strcmp(precision_prop_buf, full_pragma) == 0) { 362 ALOGI("Switching to RS FP full mode via setprop"); 363 result = FP_Full; 364 } 365 } 366 367 return result; 368 } 369
