void main(int argc, char **argv) {
int i;
void *libdvm = dlopen("libdvm.so", RTLD_LAZY);
if (libdvm == NULL) {
printf("Failed to load libdvm: %s\n", dlerror());
return;
}
dvmGetInlineOpsTablePtr dvmGetInlineOpsTable = dlsym(libdvm, "dvmGetInlineOpsTable");
if (dvmGetInlineOpsTable == NULL) {
// clear the error, and retry with the c++ mangled name
dlerror();
dvmGetInlineOpsTable = dlsym(libdvm, "_Z20dvmGetInlineOpsTablev");
}
if (dvmGetInlineOpsTable == NULL) {
printf("Failed to load dvmGetInlineOpsTable: %s\n", dlerror());
dlclose(libdvm);
return;
}
dvmGetInlineOpsTableLengthPtr dvmGetInlineOpsTableLength = dlsym(libdvm, "dvmGetInlineOpsTableLength");
if (dvmGetInlineOpsTableLength == NULL) {
// clear the error, and retry with the c++ mangled name
dlerror();
dvmGetInlineOpsTableLength = dlsym(libdvm, "_Z26dvmGetInlineOpsTableLengthv");
}
if (dvmGetInlineOpsTableLength == NULL) {
printf("Failed to load dvmGetInlineOpsTableLength: %s\n", dlerror());
dlclose(libdvm);
return;
}
const InlineOperation *inlineTable = dvmGetInlineOpsTable();
int length = dvmGetInlineOpsTableLength();
for (i=0; i<length; i++) {
InlineOperation *item = &inlineTable[i];
printf("%s->%s%s\n", item->classDescriptor, item->methodName, item->methodSignature);
}
dlclose(libdvm);
return;
}
/*
* Create a table of inline substitutions. Sets gDvm.inlineSubs.
*
* TODO: this is currently just a linear array. We will want to put this
* into a hash table as the list size increases.
*/
bool dvmCreateInlineSubsTable()
{
const InlineOperation* ops = dvmGetInlineOpsTable();
const int count = dvmGetInlineOpsTableLength();
InlineSub* table;
int i, tableIndex;
assert(gDvm.inlineSubs == NULL);
/*
* One slot per entry, plus an end-of-list marker.
*/
table = (InlineSub*) calloc(count + 1, sizeof(InlineSub));
if (!table)
{
ALOGE("table allocation failed");
return false;
}
tableIndex = 0;
for (i = 0; i < count; i++) {
Method* method = dvmFindInlinableMethod(ops[i].classDescriptor,
ops[i].methodName, ops[i].methodSignature);
if (method == NULL) {
/*
* Not expected. We only use this for key methods in core
* classes, so we should always be able to find them.
*/
ALOGE("Unable to find method for inlining: %s.%s:%s",
ops[i].classDescriptor, ops[i].methodName,
ops[i].methodSignature);
free(table);
return false;
}
table[tableIndex].method = method;
table[tableIndex].inlineIdx = i;
tableIndex++;
}
/* mark end of table */
table[tableIndex].method = NULL;
gDvm.inlineSubs = table;
return true;
}
static jobject getInlineOperation(JNIEnv* env, jclass obj) {
int i;
void *libdvm = dlopen("libdvm.so", RTLD_LAZY);
if (libdvm == NULL) {
LOGV("Failed to load libdvm\n");
return;
}
dvmGetInlineOpsTablePtr dvmGetInlineOpsTable = dlsym(libdvm, "dvmGetInlineOpsTable");
if (dvmGetInlineOpsTable == NULL) {
dvmGetInlineOpsTable = dlsym(libdvm, "_Z20dvmGetInlineOpsTablev");
}
if (dvmGetInlineOpsTable == NULL) {
LOGV("Failed to load dvmGetInlineOpsTable\n");
dlclose(libdvm);
return;
}
dvmGetInlineOpsTableLengthPtr dvmGetInlineOpsTableLength = dlsym(libdvm, "dvmGetInlineOpsTableLength");
if (dvmGetInlineOpsTableLength == NULL) {
dvmGetInlineOpsTableLength = dlsym(libdvm, "_Z26dvmGetInlineOpsTableLengthv");
}
if (dvmGetInlineOpsTableLength == NULL) {
printf("Failed to load dvmGetInlineOpsTableLength\n");
dlclose(libdvm);
return;
}
jclass stringBuilder_class = (*env)->FindClass(env,"java/lang/StringBuilder");
jmethodID initMethod = (*env)->GetMethodID(env,stringBuilder_class,"<init>","()V");
jobject stringBuilder_obj = (*env)->NewObject(env,stringBuilder_class,initMethod);
jmethodID stringbuilder_append = (*env)->GetMethodID(env,stringBuilder_class,"append","(Ljava/lang/String;)Ljava/lang/StringBuilder;");
jmethodID tostring_method = (*env)->GetMethodID(env,stringBuilder_class,"toString","()Ljava/lang/String;");
const InlineOperation *inlineTable = dvmGetInlineOpsTable();
int length = dvmGetInlineOpsTableLength();
char* buffer = malloc(400);
for (i=0; i<length; i++) {
InlineOperation *item = &inlineTable[i];
sprintf(buffer,"%s->%s%s\n", item->classDescriptor, item->methodName, item->methodSignature);
jstring descror = (*env)->NewStringUTF(env,buffer);
(*env)->CallObjectMethod(env,stringBuilder_obj,stringbuilder_append,descror);
}
dlclose(libdvm);
return (*env)->CallObjectMethod(env,stringBuilder_obj,tostring_method);
}
/*
* Dump a single instruction.
*/
void dumpInstruction(DexFile* pDexFile, const DexCode* pCode, int insnIdx,
int insnWidth, const DecodedInstruction* pDecInsn)
{
static const float gSpecialTab[16] = {
-2.0f, -1.0f, -0.5f, -0.25f, -0.1f, 0.1f, 0.25f, 0.5f,
1.0f, 2.0f, 3.0f, 4.0f, 5.0f, 10.0f, 100.0f, 1000.0f
};
const u2* insns = pCode->insns;
int i;
printf("%06x:", ((u1*)insns - pDexFile->baseAddr) + insnIdx*2);
for (i = 0; i < 8; i++) {
if (i < insnWidth) {
if (i == 7) {
printf(" ... ");
} else {
/* print 16-bit value in little-endian order */
const u1* bytePtr = (const u1*) &insns[insnIdx+i];
printf(" %02x%02x", bytePtr[0], bytePtr[1]);
}
} else {
fputs(" ", stdout);
}
}
if (pDecInsn->opCode == OP_NOP) {
u2 instr = get2LE((const u1*) &insns[insnIdx]);
if (instr == kPackedSwitchSignature) {
printf("|%04x: packed-switch-data (%d units)",
insnIdx, insnWidth);
} else if (instr == kSparseSwitchSignature) {
printf("|%04x: sparse-switch-data (%d units)",
insnIdx, insnWidth);
} else if (instr == kArrayDataSignature) {
printf("|%04x: array-data (%d units)",
insnIdx, insnWidth);
} else {
printf("|%04x: nop // spacer", insnIdx);
}
} else {
printf("|%04x: %s", insnIdx, getOpcodeName(pDecInsn->opCode));
}
switch (dexGetInstrFormat(gInstrFormat, pDecInsn->opCode)) {
case kFmt10x: // op
break;
case kFmt12x: // op vA, vB
printf(" v%d, v%d", pDecInsn->vA, pDecInsn->vB);
break;
case kFmt11n: // op vA, #+B
printf(" v%d, #int %d // #%x",
pDecInsn->vA, (s4)pDecInsn->vB, (u1)pDecInsn->vB);
break;
case kFmt11x: // op vAA
printf(" v%d", pDecInsn->vA);
break;
case kFmt10t: // op +AA
case kFmt20t: // op +AAAA
{
s4 targ = (s4) pDecInsn->vA;
printf(" %04x // %c%04x",
insnIdx + targ,
(targ < 0) ? '-' : '+',
(targ < 0) ? -targ : targ);
}
break;
case kFmt22x: // op vAA, vBBBB
printf(" v%d, v%d", pDecInsn->vA, pDecInsn->vB);
break;
case kFmt21t: // op vAA, +BBBB
{
s4 targ = (s4) pDecInsn->vB;
printf(" v%d, %04x // %c%04x", pDecInsn->vA,
insnIdx + targ,
(targ < 0) ? '-' : '+',
(targ < 0) ? -targ : targ);
}
break;
case kFmt21s: // op vAA, #+BBBB
printf(" v%d, #int %d // #%x",
pDecInsn->vA, (s4)pDecInsn->vB, (u2)pDecInsn->vB);
break;
case kFmt21h: // op vAA, #+BBBB0000[00000000]
// The printed format varies a bit based on the actual opcode.
if (pDecInsn->opCode == OP_CONST_HIGH16) {
s4 value = pDecInsn->vB << 16;
printf(" v%d, #int %d // #%x",
pDecInsn->vA, value, (u2)pDecInsn->vB);
} else {
s8 value = ((s8) pDecInsn->vB) << 48;
printf(" v%d, #long %lld // #%x",
pDecInsn->vA, value, (u2)pDecInsn->vB);
}
break;
case kFmt21c: // op vAA, thing@BBBB
if (pDecInsn->opCode == OP_CONST_STRING) {
printf(" v%d, \"%s\" // string@%04x", pDecInsn->vA,
dexStringById(pDexFile, pDecInsn->vB), pDecInsn->vB);
} else if (pDecInsn->opCode == OP_CHECK_CAST ||
pDecInsn->opCode == OP_NEW_INSTANCE ||
pDecInsn->opCode == OP_CONST_CLASS)
{
printf(" v%d, %s // class@%04x", pDecInsn->vA,
getClassDescriptor(pDexFile, pDecInsn->vB), pDecInsn->vB);
} else /* OP_SGET* */ {
FieldMethodInfo fieldInfo;
if (getFieldInfo(pDexFile, pDecInsn->vB, &fieldInfo)) {
printf(" v%d, %s.%s:%s // field@%04x", pDecInsn->vA,
fieldInfo.classDescriptor, fieldInfo.name,
fieldInfo.signature, pDecInsn->vB);
} else {
printf(" v%d, ??? // field@%04x", pDecInsn->vA, pDecInsn->vB);
}
}
break;
case kFmt23x: // op vAA, vBB, vCC
printf(" v%d, v%d, v%d", pDecInsn->vA, pDecInsn->vB, pDecInsn->vC);
break;
case kFmt22b: // op vAA, vBB, #+CC
printf(" v%d, v%d, #int %d // #%02x",
pDecInsn->vA, pDecInsn->vB, (s4)pDecInsn->vC, (u1)pDecInsn->vC);
break;
case kFmt22t: // op vA, vB, +CCCC
{
s4 targ = (s4) pDecInsn->vC;
printf(" v%d, v%d, %04x // %c%04x", pDecInsn->vA, pDecInsn->vB,
insnIdx + targ,
(targ < 0) ? '-' : '+',
(targ < 0) ? -targ : targ);
}
break;
case kFmt22s: // op vA, vB, #+CCCC
printf(" v%d, v%d, #int %d // #%04x",
pDecInsn->vA, pDecInsn->vB, (s4)pDecInsn->vC, (u2)pDecInsn->vC);
break;
case kFmt22c: // op vA, vB, thing@CCCC
if (pDecInsn->opCode >= OP_IGET && pDecInsn->opCode <= OP_IPUT_SHORT) {
FieldMethodInfo fieldInfo;
if (getFieldInfo(pDexFile, pDecInsn->vC, &fieldInfo)) {
printf(" v%d, v%d, %s.%s:%s // field@%04x", pDecInsn->vA,
pDecInsn->vB, fieldInfo.classDescriptor, fieldInfo.name,
fieldInfo.signature, pDecInsn->vC);
} else {
printf(" v%d, v%d, ??? // field@%04x", pDecInsn->vA,
pDecInsn->vB, pDecInsn->vC);
}
} else {
printf(" v%d, v%d, %s // class@%04x",
pDecInsn->vA, pDecInsn->vB,
getClassDescriptor(pDexFile, pDecInsn->vC), pDecInsn->vC);
}
break;
case kFmt22cs: // [opt] op vA, vB, field offset CCCC
printf(" v%d, v%d, [obj+%04x]",
pDecInsn->vA, pDecInsn->vB, pDecInsn->vC);
break;
case kFmt30t:
printf(" #%08x", pDecInsn->vA);
break;
case kFmt31i: // op vAA, #+BBBBBBBB
{
/* this is often, but not always, a float */
union {
float f;
u4 i;
} conv;
conv.i = pDecInsn->vB;
printf(" v%d, #float %f // #%08x",
pDecInsn->vA, conv.f, pDecInsn->vB);
}
break;
case kFmt31c: // op vAA, thing@BBBBBBBB
printf(" v%d, \"%s\" // string@%08x", pDecInsn->vA,
dexStringById(pDexFile, pDecInsn->vB), pDecInsn->vB);
break;
case kFmt31t: // op vAA, offset +BBBBBBBB
printf(" v%d, %08x // +%08x",
pDecInsn->vA, insnIdx + pDecInsn->vB, pDecInsn->vB);
break;
case kFmt32x: // op vAAAA, vBBBB
printf(" v%d, v%d", pDecInsn->vA, pDecInsn->vB);
break;
case kFmt35c: // op vB, {vD, vE, vF, vG, vA}, thing@CCCC
{
/* NOTE: decoding of 35c doesn't quite match spec */
fputs(" {", stdout);
for (i = 0; i < (int) pDecInsn->vA; i++) {
if (i == 0)
printf("v%d", pDecInsn->arg[i]);
else
printf(", v%d", pDecInsn->arg[i]);
}
if (pDecInsn->opCode == OP_FILLED_NEW_ARRAY) {
printf("}, %s // class@%04x",
getClassDescriptor(pDexFile, pDecInsn->vB), pDecInsn->vB);
} else {
FieldMethodInfo methInfo;
if (getMethodInfo(pDexFile, pDecInsn->vB, &methInfo)) {
printf("}, %s.%s:%s // method@%04x",
methInfo.classDescriptor, methInfo.name,
methInfo.signature, pDecInsn->vB);
} else {
printf("}, ??? // method@%04x", pDecInsn->vB);
}
}
}
break;
case kFmt35ms: // [opt] invoke-virtual+super
case kFmt35fs: // [opt] invoke-interface
{
fputs(" {", stdout);
for (i = 0; i < (int) pDecInsn->vA; i++) {
if (i == 0)
printf("v%d", pDecInsn->arg[i]);
else
printf(", v%d", pDecInsn->arg[i]);
}
printf("}, [%04x] // vtable #%04x", pDecInsn->vB, pDecInsn->vB);
}
break;
case kFmt3rc: // op {vCCCC .. v(CCCC+AA-1)}, meth@BBBB
{
/*
* This doesn't match the "dx" output when some of the args are
* 64-bit values -- dx only shows the first register.
*/
fputs(" {", stdout);
for (i = 0; i < (int) pDecInsn->vA; i++) {
if (i == 0)
printf("v%d", pDecInsn->vC + i);
else
printf(", v%d", pDecInsn->vC + i);
}
if (pDecInsn->opCode == OP_FILLED_NEW_ARRAY_RANGE) {
printf("}, %s // class@%04x",
getClassDescriptor(pDexFile, pDecInsn->vB), pDecInsn->vB);
} else {
FieldMethodInfo methInfo;
if (getMethodInfo(pDexFile, pDecInsn->vB, &methInfo)) {
printf("}, %s.%s:%s // method@%04x",
methInfo.classDescriptor, methInfo.name,
methInfo.signature, pDecInsn->vB);
} else {
printf("}, ??? // method@%04x", pDecInsn->vB);
}
}
}
break;
case kFmt3rms: // [opt] invoke-virtual+super/range
case kFmt3rfs: // [opt] invoke-interface/range
{
/*
* This doesn't match the "dx" output when some of the args are
* 64-bit values -- dx only shows the first register.
*/
fputs(" {", stdout);
for (i = 0; i < (int) pDecInsn->vA; i++) {
if (i == 0)
printf("v%d", pDecInsn->vC + i);
else
printf(", v%d", pDecInsn->vC + i);
}
printf("}, [%04x] // vtable #%04x", pDecInsn->vB, pDecInsn->vB);
}
break;
case kFmt3inline: // [opt] inline invoke
{
#if 0
const InlineOperation* inlineOpsTable = dvmGetInlineOpsTable();
u4 tableLen = dvmGetInlineOpsTableLength();
#endif
fputs(" {", stdout);
for (i = 0; i < (int) pDecInsn->vA; i++) {
if (i == 0)
printf("v%d", pDecInsn->arg[i]);
else
printf(", v%d", pDecInsn->arg[i]);
}
#if 0
if (pDecInsn->vB < tableLen) {
printf("}, %s.%s:%s // inline #%04x",
inlineOpsTable[pDecInsn->vB].classDescriptor,
inlineOpsTable[pDecInsn->vB].methodName,
inlineOpsTable[pDecInsn->vB].methodSignature,
pDecInsn->vB);
} else {
#endif
printf("}, [%04x] // inline #%04x", pDecInsn->vB, pDecInsn->vB);
#if 0
}
#endif
}
break;
case kFmt51l: // op vAA, #+BBBBBBBBBBBBBBBB
{
/* this is often, but not always, a double */
union {
double d;
u8 j;
} conv;
conv.j = pDecInsn->vB_wide;
printf(" v%d, #double %f // #%016llx",
pDecInsn->vA, conv.d, pDecInsn->vB_wide);
}
break;
case kFmtUnknown:
break;
default:
printf(" ???");
break;
}
putchar('\n');
}