/*
* Allocate cache.
*/
bool dvmInstanceofStartup()
{
gDvm.instanceofCache = dvmAllocAtomicCache(INSTANCEOF_CACHE_SIZE);
if (gDvm.instanceofCache == NULL)
return false;
return true;
}
/*
* Create auxillary data structures.
*
* We need a 4-byte pointer for every reference to a class, method, field,
* or string constant. Summed up over all loaded DEX files (including the
* whoppers in the boostrap class path), this adds up to be quite a bit
* of native memory.
*
* For more traditional VMs these values could be stuffed into the loaded
* class file constant pool area, but we don't have that luxury since our
* classes are memory-mapped read-only.
*
* The DEX optimizer will remove the need for some of these (e.g. we won't
* use the entry for virtual methods that are only called through
* invoke-virtual-quick), creating the possibility of some space reduction
* at dexopt time.
*/
static DvmDex* allocateAuxStructures(DexFile* pDexFile)
{
DvmDex* pDvmDex;
const DexHeader* pHeader;
u4 stringCount, classCount, methodCount, fieldCount;
pDvmDex = (DvmDex*) calloc(1, sizeof(DvmDex));
if (pDvmDex == NULL)
return NULL;
pDvmDex->pDexFile = pDexFile;
pDvmDex->pHeader = pDexFile->pHeader;
pHeader = pDvmDex->pHeader;
stringCount = pHeader->stringIdsSize;
classCount = pHeader->typeIdsSize;
methodCount = pHeader->methodIdsSize;
fieldCount = pHeader->fieldIdsSize;
pDvmDex->pResStrings = (struct StringObject**)
calloc(stringCount, sizeof(struct StringObject*));
pDvmDex->pResClasses = (struct ClassObject**)
calloc(classCount, sizeof(struct ClassObject*));
pDvmDex->pResMethods = (struct Method**)
calloc(methodCount, sizeof(struct Method*));
pDvmDex->pResFields = (struct Field**)
calloc(fieldCount, sizeof(struct Field*));
LOGV("+++ DEX %p: allocateAux %d+%d+%d+%d * 4 = %d bytes\n",
pDvmDex, stringCount, classCount, methodCount, fieldCount,
(stringCount + classCount + methodCount + fieldCount) * 4);
pDvmDex->pInterfaceCache = dvmAllocAtomicCache(DEX_INTERFACE_CACHE_SIZE);
if (pDvmDex->pResStrings == NULL ||
pDvmDex->pResClasses == NULL ||
pDvmDex->pResMethods == NULL ||
pDvmDex->pResFields == NULL ||
pDvmDex->pInterfaceCache == NULL)
{
LOGE("Alloc failure in allocateAuxStructures\n");
free(pDvmDex->pResStrings);
free(pDvmDex->pResClasses);
free(pDvmDex->pResMethods);
free(pDvmDex->pResFields);
free(pDvmDex);
return NULL;
}
return pDvmDex;
}
static DvmDex* allocateAuxStructures(DexFile* pDexFile)
{
DvmDex* pDvmDex;
const DexHeader* pHeader;
u4 stringSize, classSize, methodSize, fieldSize;
pHeader = pDexFile->pHeader;
stringSize = pHeader->stringIdsSize * sizeof(struct StringObject*);
classSize = pHeader->typeIdsSize * sizeof(struct ClassObject*);
methodSize = pHeader->methodIdsSize * sizeof(struct Method*);
fieldSize = pHeader->fieldIdsSize * sizeof(struct Field*);
u4 totalSize = sizeof(DvmDex) +
stringSize + classSize + methodSize + fieldSize;
u1 *blob = (u1 *)dvmAllocRegion(totalSize,
PROT_READ | PROT_WRITE, "dalvik-aux-structure");
if ((void *)blob == MAP_FAILED)
return NULL;
pDvmDex = (DvmDex*)blob;
blob += sizeof(DvmDex);
pDvmDex->pDexFile = pDexFile;
pDvmDex->pHeader = pHeader;
pDvmDex->pResStrings = (struct StringObject**)blob;
blob += stringSize;
pDvmDex->pResClasses = (struct ClassObject**)blob;
blob += classSize;
pDvmDex->pResMethods = (struct Method**)blob;
blob += methodSize;
pDvmDex->pResFields = (struct Field**)blob;
ALOGV("+++ DEX %p: allocateAux (%d+%d+%d+%d)*4 = %d bytes",
pDvmDex, stringSize/4, classSize/4, methodSize/4, fieldSize/4,
stringSize + classSize + methodSize + fieldSize);
pDvmDex->pInterfaceCache = dvmAllocAtomicCache(DEX_INTERFACE_CACHE_SIZE);
dvmInitMutex(&pDvmDex->modLock);
return pDvmDex;
}
