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      1 /*
      2  * Copyright 2010, 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 "Config.h"
     18 
     19 #include "ScriptCached.h"
     20 
     21 #include <bcc/bcc_cache.h>
     22 
     23 #if USE_OLD_JIT
     24 #include "OldJIT/ContextManager.h"
     25 #endif
     26 
     27 #include "DebugHelper.h"
     28 
     29 #include <stdlib.h>
     30 
     31 namespace bcc {
     32 
     33 ScriptCached::~ScriptCached() {
     34   // Deallocate the bcc script context
     35 #if USE_OLD_JIT
     36   if (mContext) {
     37     ContextManager::get().deallocateContext(mContext);
     38   }
     39 #endif
     40 
     41   // Deallocate string pool, exported var list, exported func list
     42   if (mpStringPoolRaw) { free(mpStringPoolRaw); }
     43   if (mpExportVars) { free(mpExportVars); }
     44   if (mpExportFuncs) { free(mpExportFuncs); }
     45   if (mpObjectSlotList) { free(mpObjectSlotList); }
     46 }
     47 
     48 void ScriptCached::getExportVarList(size_t varListSize, void **varList) {
     49   if (varList) {
     50     size_t varCount = getExportVarCount();
     51 
     52     if (varCount > varListSize) {
     53       varCount = varListSize;
     54     }
     55 
     56     memcpy(varList, mpExportVars->cached_addr_list, sizeof(void *) * varCount);
     57   }
     58 }
     59 
     60 
     61 void ScriptCached::getExportFuncList(size_t funcListSize, void **funcList) {
     62   if (funcList) {
     63     size_t funcCount = getExportFuncCount();
     64 
     65     if (funcCount > funcListSize) {
     66       funcCount = funcListSize;
     67     }
     68 
     69     memcpy(funcList, mpExportFuncs->cached_addr_list,
     70            sizeof(void *) * funcCount);
     71   }
     72 }
     73 
     74 
     75 void ScriptCached::getPragmaList(size_t pragmaListSize,
     76                                  char const **keyList,
     77                                  char const **valueList) {
     78   size_t pragmaCount = getPragmaCount();
     79 
     80   if (pragmaCount > pragmaListSize) {
     81     pragmaCount = pragmaListSize;
     82   }
     83 
     84   if (keyList) {
     85     for (size_t i = 0; i < pragmaCount; ++i) {
     86       *keyList++ = mPragmas[i].first;
     87     }
     88   }
     89 
     90   if (valueList) {
     91     for (size_t i = 0; i < pragmaCount; ++i) {
     92       *valueList++ = mPragmas[i].second;
     93     }
     94   }
     95 }
     96 
     97 
     98 void ScriptCached::getObjectSlotList(size_t objectSlotListSize,
     99                                      uint32_t *objectSlotList) {
    100   if (objectSlotList) {
    101     size_t objectSlotCount = getObjectSlotCount();
    102 
    103     if (objectSlotCount > objectSlotListSize) {
    104       objectSlotCount = objectSlotListSize;
    105     }
    106 
    107     memcpy(objectSlotList, mpObjectSlotList->object_slot_list,
    108            sizeof(uint32_t) * objectSlotCount);
    109   }
    110 }
    111 
    112 
    113 void *ScriptCached::lookup(const char *name) {
    114 #if USE_MCJIT
    115   return rsloaderGetSymbolAddress(mRSExecutable, name);
    116 #endif
    117   FuncTable::const_iterator I = mFunctions.find(name);
    118   return (I == mFunctions.end()) ? NULL : I->second.first;
    119 }
    120 
    121 void ScriptCached::getFuncInfoList(size_t funcInfoListSize,
    122                                    FuncInfo *funcInfoList) {
    123   if (funcInfoList) {
    124     size_t funcCount = getFuncCount();
    125 
    126     if (funcCount > funcInfoListSize) {
    127       funcCount = funcInfoListSize;
    128     }
    129 
    130     FuncInfo *info = funcInfoList;
    131     for (FuncTable::const_iterator
    132          I = mFunctions.begin(), E = mFunctions.end();
    133          I != E && funcCount > 0; ++I, ++info, --funcCount) {
    134       info->name = I->first.c_str();
    135       info->addr = I->second.first;
    136       info->size = I->second.second;
    137     }
    138   }
    139 }
    140 
    141 
    142 } // namespace bcc
    143