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InterpC-portable.cpp
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InterpC-portable.cpp
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//
// Created by mao on 20-7-28.
//
#include <cstring>
#include <cmath>
#include <jni.h>
#include "DexOpcodes.h"
#include "ScopedLocalRef.h"
#include "Exception.h"
#include "Interp.h"
#include "vm.h"
#include "JNIWrapper.h"
/*
* If enabled, log instructions as we execute them.
*/
#ifdef LOG_INSTR
void dvmDumpRegs(const jmethodID method, const u4 *framePtr, bool inOnly) {
}
# define ILOGD(...) ILOG(LOG_DEBUG, __VA_ARGS__)
# define ILOGV(...) ILOG(LOG_VERBOSE, __VA_ARGS__)
# define ILOG(_level, ...) do { \
char debugStrBuf[128]; \
snprintf(debugStrBuf, sizeof(debugStrBuf), __VA_ARGS__); \
ALOG(_level, LOG_TAG"i", "####%s", debugStrBuf); \
} while(false)
void dvmDumpRegs(const jmethodID method, const u4 *framePtr, bool inOnly);
# define DUMP_REGS(_meth, _frame, _inOnly) dvmDumpRegs(_meth, _frame, _inOnly)
static const char kSpacing[] = " ";
#else
# define ILOGD(...) ((void)0)
# define ILOGV(...) ((void)0)
# define DUMP_REGS(_meth, _frame, _inOnly) ((void)0)
#endif
#define GET_REGISTER_FLAGS(_idx) ((u1)fp_flags[(_idx)])
#define SET_REGISTER_FLAGS(_idx, _val) (fp_flags[(_idx)] =(u1) (_val))
#define GET_REGISTER_AS_OBJECT(_idx) ((jobject) fp[(_idx)])
#define DELETE_LOCAL_REF(_idx) \
if(GET_REGISTER_FLAGS(_idx)){ \
wrapper->DeleteLocalRef(env, GET_REGISTER_AS_OBJECT(_idx)); \
}
#define SET_REGISTER_AS_OBJECT(_idx, _val) \
DELETE_LOCAL_REF(_idx); \
(fp[(_idx)] = (regptr_t) (_val)); \
SET_REGISTER_FLAGS(_idx, 1)
#define GET_REGISTER(_idx) ((u4)fp[(_idx)])
#define SET_REGISTER(_idx, _val) \
DELETE_LOCAL_REF(_idx); \
(fp[(_idx)] =(u4) (_val)); \
SET_REGISTER_FLAGS(_idx, 0)
#define GET_REGISTER_INT(_idx) ((s4)GET_REGISTER(_idx))
#define SET_REGISTER_INT(_idx, _val) SET_REGISTER(_idx, (s4)(_val));
#define GET_REGISTER_FLOAT(_idx) (*((float*) &fp[(_idx)]))
#define SET_REGISTER_FLOAT(_idx, _val) \
DELETE_LOCAL_REF(_idx); \
(*((float*) &fp[(_idx)]) = (_val)); \
SET_REGISTER_FLAGS(_idx, 0)
//#ifdef _LP64
#define GET_REGISTER_WIDE(_idx) ((s8)fp[(_idx)])
#define SET_REGISTER_WIDE(_idx, _val) \
DELETE_LOCAL_REF(_idx); \
(fp[(_idx)] =(s8) (_val)); \
SET_REGISTER_FLAGS(_idx, 0)
#define GET_REGISTER_DOUBLE(_idx) (*((double*) &fp[(_idx)]))
#define SET_REGISTER_DOUBLE(_idx, _val) \
DELETE_LOCAL_REF(_idx); \
(*((double*) &fp[(_idx)]) = (_val)); \
SET_REGISTER_FLAGS(_idx, 0)
//#else
//#define GET_REGISTER_WIDE(_idx) getLongFromArray(fp,_idx)
//
//#define SET_REGISTER_WIDE(_idx, _val) \
//DELETE_LOCAL_REF(_idx); \
//putLongToArray(fp,_idx,_val); \
//SET_REGISTER_FLAGS(_idx, 0)
//
//
//#define GET_REGISTER_DOUBLE(_idx) getDoubleFromArray(fp,_idx)
//
//#define SET_REGISTER_DOUBLE(_idx, _val) \
//DELETE_LOCAL_REF(_idx); \
//putDoubleToArray(fp,_idx,_val); \
//SET_REGISTER_FLAGS(_idx, 0)
//
//#endif
//
/*
* Get 16 bits from the specified offset of the program counter. We always
* want to load 16 bits at a time from the instruction stream -- it's more
* efficient than 8 and won't have the alignment problems that 32 might.
*
* Assumes existence of "const u2* pc".
*/
#define FETCH(_offset) (pc[(_offset)])
/*
* Extract instruction byte from 16-bit fetch (_inst is a u2).
*/
#define INST_INST(_inst) ((_inst) & 0xff)
/*
* Replace the opcode (used when handling breakpoints). _opcode is a u1.
*/
#define INST_REPLACE_OP(_inst, _opcode) (((_inst) & 0xff00) | _opcode)
/*
* Extract the "vA, vB" 4-bit registers from the instruction word (_inst is u2).
*/
#define INST_A(_inst) (((_inst) >> 8) & 0x0f)
#define INST_B(_inst) ((_inst) >> 12)
/*
* Get the 8-bit "vAA" 8-bit register index from the instruction word.
* (_inst is u2)
*/
#define INST_AA(_inst) ((_inst) >> 8)
/*
* Adjust the program counter. "_offset" is a signed int, in 16-bit units.
*
* Assumes the existence of "const u2* pc" and "const u2* insns".
*
* We don't advance the program counter until we finish an instruction or
* branch, because we do want to have to unroll the PC if there's an
* exception.
*/
# define ADJUST_PC(_offset) do { \
pc += _offset; \
} while (false)
/* File: portable/stubdefs.cpp */
/*
* In the C mterp stubs, "goto" is a function call followed immediately
* by a return.
*/
#define GOTO_TARGET(_target, ...) _target:
#define GOTO_TARGET_END
/*
* Instruction framing. For a switch-oriented implementation this is
* case/break, for a threaded implementation it's a goto label and an
* instruction fetch/computed goto.
*
* Assumes the existence of "const u2* pc" and (for threaded operation)
* "u2 inst".
*/
# define H(_op) &&op_##_op
# define HANDLE_OPCODE(_op) op_##_op:
# define FINISH(_offset) { \
ADJUST_PC(_offset); \
inst = FETCH(0); \
goto *handlerTable[INST_INST(inst)]; \
}
# define FINISH_BKPT(_opcode) { \
goto *handlerTable[_opcode]; \
}
#define OP_END
/*
* The "goto" targets just turn into goto statements. The "arguments" are
* passed through local variables.
*/
#define GOTO_exceptionThrown() goto exceptionThrown;
#define GOTO_returnFromMethod() goto returnFromMethod;
#define GOTO_invoke(_target, _methodCallRange) \
do { \
methodCallRange = _methodCallRange; \
goto _target; \
} while(false)
#define GOTO_bail() goto bail;
/*
* Periodically check for thread suspension.
*
* While we're at it, see if a debugger has attached or the profiler has
* started. If so, switch to a different "goto" table.
*/
#define PERIODIC_CHECKS(_pcadj) ((void)0)
/*
* ===========================================================================
*
* What follows are opcode definitions shared between multiple opcodes with
* minor substitutions handled by the C pre-processor. These should probably
* use the mterp substitution mechanism instead, with the code here moved
* into common fragment files (like the asm "binop.S"), although it's hard
* to give up the C preprocessor in favor of the much simpler text subst.
*
* ===========================================================================
*/
#define HANDLE_NUMCONV(_opcode, _opname, _fromtype, _totype) \
HANDLE_OPCODE(_opcode /*vA, vB*/) \
vdst = INST_A(inst); \
vsrc1 = INST_B(inst); \
ILOGV("|%s v%d,v%d", (_opname), vdst, vsrc1); \
SET_REGISTER##_totype(vdst, \
GET_REGISTER##_fromtype(vsrc1)); \
FINISH(1);
#define HANDLE_FLOAT_TO_INT(_opcode, _opname, _fromvtype, _fromrtype, \
_tovtype, _tortype) \
HANDLE_OPCODE(_opcode /*vA, vB*/) \
{ \
/* spec defines specific handling for +/- inf and NaN values */ \
_fromvtype val; \
_tovtype intMin, intMax, result; \
vdst = INST_A(inst); \
vsrc1 = INST_B(inst); \
ILOGV("|%s v%d,v%d", (_opname), vdst, vsrc1); \
val = GET_REGISTER##_fromrtype(vsrc1); \
intMin = (_tovtype) 1 << (sizeof(_tovtype) * 8 -1); \
intMax = ~intMin; \
result = (_tovtype) val; \
if (val >= intMax) /* +inf */ \
result = intMax; \
else if (val <= intMin) /* -inf */ \
result = intMin; \
else if (val != val) /* NaN */ \
result = 0; \
else \
result = (_tovtype) val; \
SET_REGISTER##_tortype(vdst, result); \
} \
FINISH(1);
#define HANDLE_INT_TO_SMALL(_opcode, _opname, _type) \
HANDLE_OPCODE(_opcode /*vA, vB*/) \
vdst = INST_A(inst); \
vsrc1 = INST_B(inst); \
ILOGV("|int-to-%s v%d,v%d", (_opname), vdst, vsrc1); \
SET_REGISTER(vdst, (_type) GET_REGISTER(vsrc1)); \
FINISH(1);
/* NOTE: the comparison result is always a signed 4-byte integer */
#define HANDLE_OP_CMPX(_opcode, _opname, _varType, _type, _nanVal) \
HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/) \
{ \
int result; \
u2 regs; \
_varType val1, val2; \
vdst = INST_AA(inst); \
regs = FETCH(1); \
vsrc1 = regs & 0xff; \
vsrc2 = regs >> 8; \
ILOGV("|cmp%s v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2); \
val1 = GET_REGISTER##_type(vsrc1); \
val2 = GET_REGISTER##_type(vsrc2); \
if (val1 == val2) \
result = 0; \
else if (val1 < val2) \
result = -1; \
else if (val1 > val2) \
result = 1; \
else \
result = (_nanVal); \
ILOGV("+ result=%d", result); \
SET_REGISTER(vdst, result); \
} \
FINISH(2);
#define HANDLE_OP_IF_XX(_opcode, _opname, _cmp) \
HANDLE_OPCODE(_opcode /*vA, vB, +CCCC*/) \
vsrc1 = INST_A(inst); \
vsrc2 = INST_B(inst); \
if ((s4) GET_REGISTER(vsrc1) _cmp (s4) GET_REGISTER(vsrc2)) { \
int branchOffset = (s2)FETCH(1); /* sign-extended */ \
ILOGV("|if-%s v%d,v%d,+0x%04x", (_opname), vsrc1, vsrc2, \
branchOffset); \
ILOGV("> branch taken"); \
if (branchOffset < 0) \
PERIODIC_CHECKS(branchOffset); \
FINISH(branchOffset); \
} else { \
ILOGV("|if-%s v%d,v%d,-", (_opname), vsrc1, vsrc2); \
FINISH(2); \
}
#define HANDLE_OP_IF_XXZ(_opcode, _opname, _cmp) \
HANDLE_OPCODE(_opcode /*vAA, +BBBB*/) \
vsrc1 = INST_AA(inst); \
if ((s4) GET_REGISTER(vsrc1) _cmp 0) { \
int branchOffset = (s2)FETCH(1); /* sign-extended */ \
ILOGV("|if-%s v%d,+0x%04x", (_opname), vsrc1, branchOffset); \
ILOGV("> branch taken"); \
if (branchOffset < 0) \
PERIODIC_CHECKS(branchOffset); \
FINISH(branchOffset); \
} else { \
ILOGV("|if-%s v%d,-", (_opname), vsrc1); \
FINISH(2); \
}
#define HANDLE_UNOP(_opcode, _opname, _pfx, _sfx, _type) \
HANDLE_OPCODE(_opcode /*vA, vB*/) \
vdst = INST_A(inst); \
vsrc1 = INST_B(inst); \
ILOGV("|%s v%d,v%d", (_opname), vdst, vsrc1); \
SET_REGISTER##_type(vdst, _pfx GET_REGISTER##_type(vsrc1) _sfx); \
FINISH(1);
#define HANDLE_OP_X_INT(_opcode, _opname, _op, _chkdiv) \
HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/) \
{ \
u2 srcRegs; \
vdst = INST_AA(inst); \
srcRegs = FETCH(1); \
vsrc1 = srcRegs & 0xff; \
vsrc2 = srcRegs >> 8; \
ILOGV("|%s-int v%d,v%d", (_opname), vdst, vsrc1); \
if (_chkdiv != 0) { \
s4 firstVal, secondVal, result; \
firstVal = GET_REGISTER(vsrc1); \
secondVal = GET_REGISTER(vsrc2); \
if (secondVal == 0) { \
dvmThrowArithmeticException(env,"divide by zero"); \
GOTO_exceptionThrown(); \
} \
if ((u4)firstVal == 0x80000000 && secondVal == -1) { \
if (_chkdiv == 1) \
result = firstVal; /* division */ \
else \
result = 0; /* remainder */ \
} else { \
result = firstVal _op secondVal; \
} \
SET_REGISTER(vdst, result); \
} else { \
/* non-div/rem case */ \
SET_REGISTER(vdst, \
(s4) GET_REGISTER(vsrc1) _op (s4) GET_REGISTER(vsrc2)); \
} \
} \
FINISH(2);
#define HANDLE_OP_SHX_INT(_opcode, _opname, _cast, _op) \
HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/) \
{ \
u2 srcRegs; \
vdst = INST_AA(inst); \
srcRegs = FETCH(1); \
vsrc1 = srcRegs & 0xff; \
vsrc2 = srcRegs >> 8; \
ILOGV("|%s-int v%d,v%d", (_opname), vdst, vsrc1); \
SET_REGISTER(vdst, \
_cast GET_REGISTER(vsrc1) _op (GET_REGISTER(vsrc2) & 0x1f)); \
} \
FINISH(2);
#define HANDLE_OP_X_INT_LIT16(_opcode, _opname, _op, _chkdiv) \
HANDLE_OPCODE(_opcode /*vA, vB, #+CCCC*/) \
vdst = INST_A(inst); \
vsrc1 = INST_B(inst); \
vsrc2 = FETCH(1); \
ILOGV("|%s-int/lit16 v%d,v%d,#+0x%04x", \
(_opname), vdst, vsrc1, vsrc2); \
if (_chkdiv != 0) { \
s4 firstVal, result; \
firstVal = GET_REGISTER(vsrc1); \
if ((s2) vsrc2 == 0) { \
dvmThrowArithmeticException(env,"divide by zero"); \
GOTO_exceptionThrown(); \
} \
if ((u4)firstVal == 0x80000000 && ((s2) vsrc2) == -1) { \
/* won't generate /lit16 instr for this; check anyway */ \
if (_chkdiv == 1) \
result = firstVal; /* division */ \
else \
result = 0; /* remainder */ \
} else { \
result = firstVal _op (s2) vsrc2; \
} \
SET_REGISTER(vdst, result); \
} else { \
/* non-div/rem case */ \
SET_REGISTER(vdst, GET_REGISTER(vsrc1) _op (s2) vsrc2); \
} \
FINISH(2);
#define HANDLE_OP_X_INT_LIT8(_opcode, _opname, _op, _chkdiv) \
HANDLE_OPCODE(_opcode /*vAA, vBB, #+CC*/) \
{ \
u2 litInfo; \
vdst = INST_AA(inst); \
litInfo = FETCH(1); \
vsrc1 = litInfo & 0xff; \
vsrc2 = litInfo >> 8; /* constant */ \
ILOGV("|%s-int/lit8 v%d,v%d,#+0x%02x", \
(_opname), vdst, vsrc1, vsrc2); \
if (_chkdiv != 0) { \
s4 firstVal, result; \
firstVal = GET_REGISTER(vsrc1); \
if ((s1) vsrc2 == 0) { \
dvmThrowArithmeticException(env,"divide by zero"); \
GOTO_exceptionThrown(); \
} \
if ((u4)firstVal == 0x80000000 && ((s1) vsrc2) == -1) { \
if (_chkdiv == 1) \
result = firstVal; /* division */ \
else \
result = 0; /* remainder */ \
} else { \
result = firstVal _op ((s1) vsrc2); \
} \
SET_REGISTER(vdst, result); \
} else { \
SET_REGISTER(vdst, \
(s4) GET_REGISTER(vsrc1) _op (s1) vsrc2); \
} \
} \
FINISH(2);
#define HANDLE_OP_SHX_INT_LIT8(_opcode, _opname, _cast, _op) \
HANDLE_OPCODE(_opcode /*vAA, vBB, #+CC*/) \
{ \
u2 litInfo; \
vdst = INST_AA(inst); \
litInfo = FETCH(1); \
vsrc1 = litInfo & 0xff; \
vsrc2 = litInfo >> 8; /* constant */ \
ILOGV("|%s-int/lit8 v%d,v%d,#+0x%02x", \
(_opname), vdst, vsrc1, vsrc2); \
SET_REGISTER(vdst, \
_cast GET_REGISTER(vsrc1) _op (vsrc2 & 0x1f)); \
} \
FINISH(2);
#define HANDLE_OP_X_INT_2ADDR(_opcode, _opname, _op, _chkdiv) \
HANDLE_OPCODE(_opcode /*vA, vB*/) \
vdst = INST_A(inst); \
vsrc1 = INST_B(inst); \
ILOGV("|%s-int-2addr v%d,v%d", (_opname), vdst, vsrc1); \
if (_chkdiv != 0) { \
s4 firstVal, secondVal, result; \
firstVal = GET_REGISTER(vdst); \
secondVal = GET_REGISTER(vsrc1); \
if (secondVal == 0) { \
dvmThrowArithmeticException(env,"divide by zero"); \
GOTO_exceptionThrown(); \
} \
if ((u4)firstVal == 0x80000000 && secondVal == -1) { \
if (_chkdiv == 1) \
result = firstVal; /* division */ \
else \
result = 0; /* remainder */ \
} else { \
result = firstVal _op secondVal; \
} \
SET_REGISTER(vdst, result); \
} else { \
SET_REGISTER(vdst, \
(s4) GET_REGISTER(vdst) _op (s4) GET_REGISTER(vsrc1)); \
} \
FINISH(1);
#define HANDLE_OP_SHX_INT_2ADDR(_opcode, _opname, _cast, _op) \
HANDLE_OPCODE(_opcode /*vA, vB*/) \
vdst = INST_A(inst); \
vsrc1 = INST_B(inst); \
ILOGV("|%s-int-2addr v%d,v%d", (_opname), vdst, vsrc1); \
SET_REGISTER(vdst, \
_cast GET_REGISTER(vdst) _op (GET_REGISTER(vsrc1) & 0x1f)); \
FINISH(1);
#define HANDLE_OP_X_LONG(_opcode, _opname, _op, _chkdiv) \
HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/) \
{ \
u2 srcRegs; \
vdst = INST_AA(inst); \
srcRegs = FETCH(1); \
vsrc1 = srcRegs & 0xff; \
vsrc2 = srcRegs >> 8; \
ILOGV("|%s-long v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2); \
if (_chkdiv != 0) { \
s8 firstVal, secondVal, result; \
firstVal = GET_REGISTER_WIDE(vsrc1); \
secondVal = GET_REGISTER_WIDE(vsrc2); \
if (secondVal == 0LL) { \
dvmThrowArithmeticException(env,"divide by zero"); \
GOTO_exceptionThrown(); \
} \
if ((u8)firstVal == 0x8000000000000000ULL && \
secondVal == -1LL) \
{ \
if (_chkdiv == 1) \
result = firstVal; /* division */ \
else \
result = 0; /* remainder */ \
} else { \
result = firstVal _op secondVal; \
} \
SET_REGISTER_WIDE(vdst, result); \
} else { \
SET_REGISTER_WIDE(vdst, \
(s8) GET_REGISTER_WIDE(vsrc1) _op (s8) GET_REGISTER_WIDE(vsrc2)); \
} \
} \
FINISH(2);
#define HANDLE_OP_SHX_LONG(_opcode, _opname, _cast, _op) \
HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/) \
{ \
u2 srcRegs; \
vdst = INST_AA(inst); \
srcRegs = FETCH(1); \
vsrc1 = srcRegs & 0xff; \
vsrc2 = srcRegs >> 8; \
ILOGV("|%s-long v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2); \
SET_REGISTER_WIDE(vdst, \
_cast GET_REGISTER_WIDE(vsrc1) _op (GET_REGISTER(vsrc2) & 0x3f)); \
} \
FINISH(2);
#define HANDLE_OP_X_LONG_2ADDR(_opcode, _opname, _op, _chkdiv) \
HANDLE_OPCODE(_opcode /*vA, vB*/) \
vdst = INST_A(inst); \
vsrc1 = INST_B(inst); \
ILOGV("|%s-long-2addr v%d,v%d", (_opname), vdst, vsrc1); \
if (_chkdiv != 0) { \
s8 firstVal, secondVal, result; \
firstVal = GET_REGISTER_WIDE(vdst); \
secondVal = GET_REGISTER_WIDE(vsrc1); \
if (secondVal == 0LL) { \
dvmThrowArithmeticException(env,"divide by zero"); \
GOTO_exceptionThrown(); \
} \
if ((u8)firstVal == 0x8000000000000000ULL && \
secondVal == -1LL) \
{ \
if (_chkdiv == 1) \
result = firstVal; /* division */ \
else \
result = 0; /* remainder */ \
} else { \
result = firstVal _op secondVal; \
} \
SET_REGISTER_WIDE(vdst, result); \
} else { \
SET_REGISTER_WIDE(vdst, \
(s8) GET_REGISTER_WIDE(vdst) _op (s8)GET_REGISTER_WIDE(vsrc1));\
} \
FINISH(1);
#define HANDLE_OP_SHX_LONG_2ADDR(_opcode, _opname, _cast, _op) \
HANDLE_OPCODE(_opcode /*vA, vB*/) \
vdst = INST_A(inst); \
vsrc1 = INST_B(inst); \
ILOGV("|%s-long-2addr v%d,v%d", (_opname), vdst, vsrc1); \
SET_REGISTER_WIDE(vdst, \
_cast GET_REGISTER_WIDE(vdst) _op (GET_REGISTER(vsrc1) & 0x3f)); \
FINISH(1);
#define HANDLE_OP_X_FLOAT(_opcode, _opname, _op) \
HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/) \
{ \
u2 srcRegs; \
vdst = INST_AA(inst); \
srcRegs = FETCH(1); \
vsrc1 = srcRegs & 0xff; \
vsrc2 = srcRegs >> 8; \
ILOGV("|%s-float v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2); \
SET_REGISTER_FLOAT(vdst, \
GET_REGISTER_FLOAT(vsrc1) _op GET_REGISTER_FLOAT(vsrc2)); \
} \
FINISH(2);
#define HANDLE_OP_X_DOUBLE(_opcode, _opname, _op) \
HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/) \
{ \
u2 srcRegs; \
vdst = INST_AA(inst); \
srcRegs = FETCH(1); \
vsrc1 = srcRegs & 0xff; \
vsrc2 = srcRegs >> 8; \
ILOGV("|%s-double v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2); \
SET_REGISTER_DOUBLE(vdst, \
GET_REGISTER_DOUBLE(vsrc1) _op GET_REGISTER_DOUBLE(vsrc2)); \
} \
FINISH(2);
#define HANDLE_OP_X_FLOAT_2ADDR(_opcode, _opname, _op) \
HANDLE_OPCODE(_opcode /*vA, vB*/) \
vdst = INST_A(inst); \
vsrc1 = INST_B(inst); \
ILOGV("|%s-float-2addr v%d,v%d", (_opname), vdst, vsrc1); \
SET_REGISTER_FLOAT(vdst, \
GET_REGISTER_FLOAT(vdst) _op GET_REGISTER_FLOAT(vsrc1)); \
FINISH(1);
#define HANDLE_OP_X_DOUBLE_2ADDR(_opcode, _opname, _op) \
HANDLE_OPCODE(_opcode /*vA, vB*/) \
vdst = INST_A(inst); \
vsrc1 = INST_B(inst); \
ILOGV("|%s-double-2addr v%d,v%d", (_opname), vdst, vsrc1); \
SET_REGISTER_DOUBLE(vdst, \
GET_REGISTER_DOUBLE(vdst) _op GET_REGISTER_DOUBLE(vsrc1)); \
FINISH(1);
#define HANDLE_OP_AGET(_opcode, _opname, _setreg) \
HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/) \
{ \
jarray arrayObj; \
u2 arrayInfo; \
vdst = INST_AA(inst); \
arrayInfo = FETCH(1); \
vsrc1 = arrayInfo & 0xff; /* array ptr */ \
vsrc2 = arrayInfo >> 8; /* index */ \
ILOGV("|aget%s v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2); \
arrayObj = (jarray) GET_REGISTER_AS_OBJECT(vsrc1); \
if (arrayObj == NULL) { \
dvmThrowNullPointerException(env,NULL); \
GOTO_exceptionThrown(); \
} \
u4 idx = GET_REGISTER(vsrc2); \
_setreg; \
if (wrapper->ExceptionCheck(env)) { \
GOTO_exceptionThrown(); \
} \
ILOGV("+ AGET[%d]=%#x", GET_REGISTER(vsrc2), GET_REGISTER(vdst)); \
} \
FINISH(2);
#define HANDLE_OP_APUT(_opcode, _opname, _setarray) \
HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/) \
{ \
jarray arrayObj; \
u2 arrayInfo; \
vdst = INST_AA(inst); \
arrayInfo = FETCH(1); \
vsrc1 = arrayInfo & 0xff; /* array ptr */ \
vsrc2 = arrayInfo >> 8; /* index */ \
ILOGV("|aput%s v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2); \
arrayObj = (jarray) GET_REGISTER_AS_OBJECT(vsrc1); \
if (arrayObj == NULL) { \
dvmThrowNullPointerException(env, NULL); \
GOTO_exceptionThrown(); \
} \
u4 idx = GET_REGISTER(vsrc2); \
_setarray; \
if (wrapper->ExceptionCheck(env)) { \
GOTO_exceptionThrown(); \
} \
ILOGV("+ APUT[%d]=0x%08x", GET_REGISTER(vsrc2), GET_REGISTER(vdst));\
} \
FINISH(2);
/*
* It's possible to get a bad value out of a field with sub-32-bit stores
* because the -quick versions always operate on 32 bits. Consider:
* short foo = -1 (sets a 32-bit register to 0xffffffff)
* iput-quick foo (writes all 32 bits to the field)
* short bar = 1 (sets a 32-bit register to 0x00000001)
* iput-short (writes the low 16 bits to the field)
* iget-quick foo (reads all 32 bits from the field, yielding 0xffff0001)
* This can only happen when optimized and non-optimized code has interleaved
* access to the same field. This is unlikely but possible.
*
* The easiest way to fix this is to always read/write 32 bits at a time. On
* a device with a 16-bit data bus this is sub-optimal. (The alternative
* approach is to have sub-int versions of iget-quick, but now we're wasting
* Dalvik instruction space and making it less likely that handler code will
* already be in the CPU i-cache.)
*/
#define HANDLE_IGET_X(_opcode, _opname, _setreg, _regsize) \
HANDLE_OPCODE(_opcode /*vA, vB, field@CCCC*/) \
{ \
const vmField *ifield; \
jobject obj; \
vdst = INST_A(inst); \
vsrc1 = INST_B(inst); /* object ptr */ \
ref = FETCH(1); /* field ref */ \
ILOGV("|iget%s v%d,v%d,field@0x%04x", (_opname), vdst, vsrc1, ref); \
obj = GET_REGISTER_AS_OBJECT(vsrc1); \
if (obj == NULL) { \
dvmThrowNullPointerException(env, NULL); \
GOTO_exceptionThrown(); \
} \
ifield = dvmResolver->dvmResolveField(env, ref, false); \
if (ifield == NULL) { \
GOTO_exceptionThrown(); \
} \
_setreg; \
ILOGV("+ IGET '%d'=0x%08llx", ifield->classIdx, \
(u8) GET_REGISTER##_regsize(vdst)); \
} \
FINISH(2);
#define HANDLE_IPUT_X(_opcode, _opname, _setfield, _regsize) \
HANDLE_OPCODE(_opcode /*vA, vB, field@CCCC*/) \
{ \
const vmField *ifield; \
jobject obj; \
vdst = INST_A(inst); \
vsrc1 = INST_B(inst); /* object ptr */ \
ref = FETCH(1); /* field ref */ \
ILOGV("|iput%s v%d,v%d,field@0x%04x", (_opname), vdst, vsrc1, ref); \
obj = GET_REGISTER_AS_OBJECT(vsrc1); \
if (obj == NULL) { \
dvmThrowNullPointerException(env, NULL); \
GOTO_exceptionThrown(); \
} \
ifield = dvmResolver->dvmResolveField(env, ref, false); \
if (ifield == NULL) { \
GOTO_exceptionThrown(); \
} \
_setfield; \
ILOGV("+ IPUT '%d'=0x%08llx", ifield->classIdx, \
(u8) GET_REGISTER##_regsize(vdst)); \
} \
FINISH(2);
#define HANDLE_SGET_X(_opcode, _opname, _setreg, _regsize) \
HANDLE_OPCODE(_opcode /*vAA, field@BBBB*/) \
{ \
const vmField *sfield; \
vdst = INST_AA(inst); \
ref = FETCH(1); /* field ref */ \
ILOGV("|sget%s v%d,sfield@0x%04x", (_opname), vdst, ref); \
sfield = dvmResolver->dvmResolveField(env, ref, true); \
if (sfield == NULL) { \
GOTO_exceptionThrown(); \
} \
ScopedLocalRef<jclass> clazz(env, \
dvmResolver->dvmResolveClass(env, sfield->classIdx)); \
if (clazz.get() == NULL) { \
GOTO_exceptionThrown(); \
} \
_setreg; \
ILOGV("+ SGET '%d'=0x%08llx", \
sfield->classIdx, (u8) GET_REGISTER##_regsize(vdst)); \
} \
FINISH(2);
#define HANDLE_SPUT_X(_opcode, _opname, _setfield, _regsize) \
HANDLE_OPCODE(_opcode /*vAA, field@BBBB*/) \
{ \
const vmField *sfield; \
vdst = INST_AA(inst); \
ref = FETCH(1); /* field ref */ \
ILOGV("|sput%s v%d,sfield@0x%04x", (_opname), vdst, ref); \
sfield = dvmResolver->dvmResolveField(env, ref, true); \
if (sfield == NULL) { \
GOTO_exceptionThrown(); \
} \
ScopedLocalRef<jclass> clazz(env, \
dvmResolver->dvmResolveClass(env, sfield->classIdx)); \
if (clazz.get() == NULL) { \
GOTO_exceptionThrown(); \
} \
_setfield; \
ILOGV("+ SPUT '%d'=0x%08llx", \
sfield->classIdx, (u8) GET_REGISTER##_regsize(vdst)); \
} \
FINISH(2);
#define NEW_ARRAY(_typeCh, _type, _len) \
switch (_typeCh) { \
case 'Z': \
newArray = wrapper->NewBooleanArray(env, _len); \
break; \
case 'B': \
newArray = wrapper->NewByteArray(env, _len); \
break; \
case 'C': \
newArray = wrapper->NewCharArray(env, _len); \
break; \
case 'S': \
newArray = wrapper->NewShortArray(env, _len); \
break; \
case 'I': \
newArray = wrapper->NewIntArray(env, _len); \
break; \
case 'F': \
newArray = wrapper->NewFloatArray(env, _len); \
break; \
case 'J': \
newArray = wrapper->NewLongArray(env, _len); \
break; \
case 'D': \
newArray = wrapper->NewDoubleArray(env, _len); \
break; \
case 'L': \
case '[': { \
ScopedLocalRef<jclass> arrayClass(env, \
dvmResolver->dvmFindClass(env, _type)); \
if (arrayClass.get() == NULL) { \
GOTO_exceptionThrown(); \
} \
newArray = wrapper->NewObjectArray(env, (_len), arrayClass.get(), NULL); \
break; \
} \
default: \
dvmThrowRuntimeException(env,"Can't new array"); \
newArray = NULL; \
}
//设置数组元素
#define SET_ARRAY_ELEMENT(_typeCh, _array, _idx, _vsrc) \
switch(_typeCh){ \
case '[': \
case 'L': \
wrapper->SetObjectArrayElement(env, (jobjectArray) (_array), (_idx), \
GET_REGISTER_AS_OBJECT(_vsrc)); \
break; \
case 'Z':{ \
val = GET_REGISTER(_vsrc); \
wrapper->SetBooleanArrayRegion(env, (jbooleanArray) (_array), _idx, 1, \
(const jboolean *) (&val)); \
break; \
} \
case 'B': { \
val = GET_REGISTER(_vsrc); \
wrapper->SetByteArrayRegion(env, (jbyteArray) (_array), _idx, 1, \
(const jbyte *) (&val)); \
break; \
} \
case 'S': { \
val = GET_REGISTER(_vsrc); \
wrapper->SetShortArrayRegion(env, (jshortArray) (_array), _idx, 1, \
(const jshort *) (&val)); \
break; \
} \
case 'C': { \
val = GET_REGISTER(_vsrc); \
wrapper->SetCharArrayRegion(env, (jcharArray) (_array), _idx, 1, \
(const jchar *) (&val)); \
break; \
} \
case 'I': { \
val = GET_REGISTER(_vsrc); \
wrapper->SetIntArrayRegion(env, (jintArray) (_array), _idx, 1, \
(const jint *) (&val)); \
break; \
} \
case 'F':{ \
val = GET_REGISTER(_vsrc); \
wrapper->SetFloatArrayRegion(env, (jfloatArray) (_array), _idx, 1, \
(const jfloat *) (&val)); \
break; \
} \
}
#define SET_ARGUMENT(_args, _typeCh, _idx, _vsrc) \
ILOGV("set argument args[%d]=%08llx", _idx, GET_REGISTER_WIDE(_vsrc)); \
switch(_typeCh){ \
case 'Z': \
case 'B': \
case 'S': \
case 'C': \
case 'I': \
(_args)[_idx].i = GET_REGISTER(_vsrc); \
regwidth = 1; \
break; \
case 'F': \
(_args)[_idx].f = GET_REGISTER_FLOAT(_vsrc); \
regwidth = 1; \
break; \
case 'J': \
(_args)[_idx].j = GET_REGISTER_WIDE(_vsrc); \
regwidth = 2; \
break; \
case 'D': \
(_args)[_idx].d = GET_REGISTER_DOUBLE(_vsrc); \
regwidth = 2; \
break; \
case 'L': \
(_args)[_idx].l = GET_REGISTER_AS_OBJECT(_vsrc); \
regwidth = 1; \
break; \
default: \
regwidth=1; \
}
#define INVOKE_STATIC_METHOD(_x) \
{ \
jvalue *args; \
u1 regwidth; \
int i, idx; \
\
\
char returnCh = methodToCall->shorty[0]; \
\
const char *paramTypes = methodToCall->shorty + 1; \
\
/* \
* Copy args. This may corrupt vsrc1/vdst. \
*/ \
if (methodCallRange) { \
args = (jvalue *) malloc(sizeof(jvalue) * (vsrc1)); \
for (i = 0, idx = 0; idx < vsrc1; i++) { \
SET_ARGUMENT(args, paramTypes[i], i, vdst + idx); \
idx += regwidth; \
} \
} else { \
args = args_tmp; \
u4 count = vsrc1 >> 4; \
assert(count <= 5); \
for (i = 0, idx = 0; idx < count; i++) { \
switch (idx) { \
case 4: \
SET_ARGUMENT(args, paramTypes[i], i, vsrc1 & 0x0f); \
break; \
case 3: \
SET_ARGUMENT(args, paramTypes[i], i, vdst >> 12); \
break; \
case 2: \
SET_ARGUMENT(args, paramTypes[i], i, (vdst & 0x0f00) >> 8); \
break; \
case 1: \
SET_ARGUMENT(args, paramTypes[i], i, (vdst & 0x00f0) >> 4); \
break; \
case 0: \
SET_ARGUMENT(args, paramTypes[i], i, vdst & 0x0f); \
break; \
default: \
regwidth = 1; \
} \
idx += regwidth; \
} \
} \
_x; \
/* \
* 如果申请的内存则需要释放 \
*/ \
if (args != args_tmp) { \
free(args); \
} \
\
if(wrapper->ExceptionCheck(env)){ \
GOTO_exceptionThrown(); \
} \
FINISH(3); \
}
#define INVOKE_METHOD(_x) \
{ \
jvalue *args; \
u1 regwidth; \
int i, idx; \
\
char returnCh = methodToCall->shorty[0]; \
\
const char *paramTypes = methodToCall->shorty + 1; \
\