/*
* Induce verification on all classes loaded from this DEX file as part
* of pre-verification and optimization. This is never called from a
* normally running VM.
*
* Returns "true" when all classes have been processed.
*/
bool dvmVerifyAllClasses(DexFile* pDexFile)
{
u4 count = pDexFile->pHeader->classDefsSize;
u4 idx;
assert(gDvm.optimizing);
if (gDvm.classVerifyMode == VERIFY_MODE_NONE) {
LOGV("+++ verification is disabled, skipping all classes\n");
return true;
}
if (gDvm.classVerifyMode == VERIFY_MODE_REMOTE &&
gDvm.optimizingBootstrapClass)
{
LOGV("+++ verification disabled for bootstrap classes\n");
return true;
}
for (idx = 0; idx < count; idx++) {
const DexClassDef* pClassDef;
const char* classDescriptor;
ClassObject* clazz;
pClassDef = dexGetClassDef(pDexFile, idx);
classDescriptor = dexStringByTypeIdx(pDexFile, pClassDef->classIdx);
/* all classes are loaded into the bootstrap class loader */
clazz = dvmLookupClass(classDescriptor, NULL, false);
if (clazz != NULL) {
if (clazz->pDvmDex->pDexFile != pDexFile) {
LOGD("DexOpt: not verifying '%s': multiple definitions\n",
classDescriptor);
} else {
if (dvmVerifyClass(clazz, VERIFY_DEFAULT)) {
assert((clazz->accessFlags & JAVA_FLAGS_MASK) ==
pClassDef->accessFlags);
((DexClassDef*)pClassDef)->accessFlags |=
CLASS_ISPREVERIFIED;
}
/* keep going even if one fails */
}
} else {
LOGV("DexOpt: +++ not verifying '%s'\n", classDescriptor);
}
}
return true;
}
/*
* Verify and/or optimize a specific class.
*/
static void verifyAndOptimizeClass(DexFile* pDexFile, ClassObject* clazz,
const DexClassDef* pClassDef, bool doVerify, bool doOpt)
{
const char* classDescriptor;
bool verified = false;
classDescriptor = dexStringByTypeIdx(pDexFile, pClassDef->classIdx);
/*
* First, try to verify it.
*/
if (doVerify) {
if (clazz->pDvmDex->pDexFile != pDexFile) {
LOGD("DexOpt: not verifying '%s': multiple definitions\n",
classDescriptor);
} else {
if (dvmVerifyClass(clazz)) {
/*
* Set the "is preverified" flag in the DexClassDef. We
* do it here, rather than in the ClassObject structure,
* because the DexClassDef is part of the odex file.
*/
assert((clazz->accessFlags & JAVA_FLAGS_MASK) ==
pClassDef->accessFlags);
((DexClassDef*)pClassDef)->accessFlags |= CLASS_ISPREVERIFIED;
verified = true;
} else {
// TODO: log when in verbose mode
LOGV("DexOpt: '%s' failed verification\n", classDescriptor);
}
}
}
if (doOpt) {
if (!verified && gDvm.dexOptMode == OPTIMIZE_MODE_VERIFIED) {
LOGV("DexOpt: not optimizing '%s': not verified\n",
classDescriptor);
} else {
dvmOptimizeClass(clazz, false);
/* set the flag whether or not we actually changed anything */
((DexClassDef*)pClassDef)->accessFlags |= CLASS_ISOPTIMIZED;
}
}
}