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      1 /*
      2  * This file was generated automatically by gen-mterp.py for 'x86'.
      3  *
      4  * --> DO NOT EDIT <--
      5  */
      6 
      7 /* File: c/header.cpp */
      8 /*
      9  * Copyright (C) 2008 The Android Open Source Project
     10  *
     11  * Licensed under the Apache License, Version 2.0 (the "License");
     12  * you may not use this file except in compliance with the License.
     13  * You may obtain a copy of the License at
     14  *
     15  *      http://www.apache.org/licenses/LICENSE-2.0
     16  *
     17  * Unless required by applicable law or agreed to in writing, software
     18  * distributed under the License is distributed on an "AS IS" BASIS,
     19  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     20  * See the License for the specific language governing permissions and
     21  * limitations under the License.
     22  */
     23 
     24 /* common includes */
     25 #include "Dalvik.h"
     26 #include "interp/InterpDefs.h"
     27 #include "mterp/Mterp.h"
     28 #include <math.h>                   // needed for fmod, fmodf
     29 #include "mterp/common/FindInterface.h"
     30 
     31 /*
     32  * Configuration defines.  These affect the C implementations, i.e. the
     33  * portable interpreter(s) and C stubs.
     34  *
     35  * Some defines are controlled by the Makefile, e.g.:
     36  *   WITH_INSTR_CHECKS
     37  *   WITH_TRACKREF_CHECKS
     38  *   EASY_GDB
     39  *   NDEBUG
     40  */
     41 
     42 #ifdef WITH_INSTR_CHECKS            /* instruction-level paranoia (slow!) */
     43 # define CHECK_BRANCH_OFFSETS
     44 # define CHECK_REGISTER_INDICES
     45 #endif
     46 
     47 /*
     48  * Some architectures require 64-bit alignment for access to 64-bit data
     49  * types.  We can't just use pointers to copy 64-bit values out of our
     50  * interpreted register set, because gcc may assume the pointer target is
     51  * aligned and generate invalid code.
     52  *
     53  * There are two common approaches:
     54  *  (1) Use a union that defines a 32-bit pair and a 64-bit value.
     55  *  (2) Call memcpy().
     56  *
     57  * Depending upon what compiler you're using and what options are specified,
     58  * one may be faster than the other.  For example, the compiler might
     59  * convert a memcpy() of 8 bytes into a series of instructions and omit
     60  * the call.  The union version could cause some strange side-effects,
     61  * e.g. for a while ARM gcc thought it needed separate storage for each
     62  * inlined instance, and generated instructions to zero out ~700 bytes of
     63  * stack space at the top of the interpreter.
     64  *
     65  * The default is to use memcpy().  The current gcc for ARM seems to do
     66  * better with the union.
     67  */
     68 #if defined(__ARM_EABI__)
     69 # define NO_UNALIGN_64__UNION
     70 #endif
     71 
     72 
     73 //#define LOG_INSTR                   /* verbose debugging */
     74 /* set and adjust ANDROID_LOG_TAGS='*:i jdwp:i dalvikvm:i dalvikvmi:i' */
     75 
     76 /*
     77  * Export another copy of the PC on every instruction; this is largely
     78  * redundant with EXPORT_PC and the debugger code.  This value can be
     79  * compared against what we have stored on the stack with EXPORT_PC to
     80  * help ensure that we aren't missing any export calls.
     81  */
     82 #if WITH_EXTRA_GC_CHECKS > 1
     83 # define EXPORT_EXTRA_PC() (self->currentPc2 = pc)
     84 #else
     85 # define EXPORT_EXTRA_PC()
     86 #endif
     87 
     88 /*
     89  * Adjust the program counter.  "_offset" is a signed int, in 16-bit units.
     90  *
     91  * Assumes the existence of "const u2* pc" and "const u2* curMethod->insns".
     92  *
     93  * We don't advance the program counter until we finish an instruction or
     94  * branch, because we do want to have to unroll the PC if there's an
     95  * exception.
     96  */
     97 #ifdef CHECK_BRANCH_OFFSETS
     98 # define ADJUST_PC(_offset) do {                                            \
     99         int myoff = _offset;        /* deref only once */                   \
    100         if (pc + myoff < curMethod->insns ||                                \
    101             pc + myoff >= curMethod->insns + dvmGetMethodInsnsSize(curMethod)) \
    102         {                                                                   \
    103             char* desc;                                                     \
    104             desc = dexProtoCopyMethodDescriptor(&curMethod->prototype);     \
    105             ALOGE("Invalid branch %d at 0x%04x in %s.%s %s",                 \
    106                 myoff, (int) (pc - curMethod->insns),                       \
    107                 curMethod->clazz->descriptor, curMethod->name, desc);       \
    108             free(desc);                                                     \
    109             dvmAbort();                                                     \
    110         }                                                                   \
    111         pc += myoff;                                                        \
    112         EXPORT_EXTRA_PC();                                                  \
    113     } while (false)
    114 #else
    115 # define ADJUST_PC(_offset) do {                                            \
    116         pc += _offset;                                                      \
    117         EXPORT_EXTRA_PC();                                                  \
    118     } while (false)
    119 #endif
    120 
    121 /*
    122  * If enabled, log instructions as we execute them.
    123  */
    124 #ifdef LOG_INSTR
    125 # define ILOGD(...) ILOG(LOG_DEBUG, __VA_ARGS__)
    126 # define ILOGV(...) ILOG(LOG_VERBOSE, __VA_ARGS__)
    127 # define ILOG(_level, ...) do {                                             \
    128         char debugStrBuf[128];                                              \
    129         snprintf(debugStrBuf, sizeof(debugStrBuf), __VA_ARGS__);            \
    130         if (curMethod != NULL)                                              \
    131             ALOG(_level, LOG_TAG"i", "%-2d|%04x%s",                          \
    132                 self->threadId, (int)(pc - curMethod->insns), debugStrBuf); \
    133         else                                                                \
    134             ALOG(_level, LOG_TAG"i", "%-2d|####%s",                          \
    135                 self->threadId, debugStrBuf);                               \
    136     } while(false)
    137 void dvmDumpRegs(const Method* method, const u4* framePtr, bool inOnly);
    138 # define DUMP_REGS(_meth, _frame, _inOnly) dvmDumpRegs(_meth, _frame, _inOnly)
    139 static const char kSpacing[] = "            ";
    140 #else
    141 # define ILOGD(...) ((void)0)
    142 # define ILOGV(...) ((void)0)
    143 # define DUMP_REGS(_meth, _frame, _inOnly) ((void)0)
    144 #endif
    145 
    146 /* get a long from an array of u4 */
    147 static inline s8 getLongFromArray(const u4* ptr, int idx)
    148 {
    149 #if defined(NO_UNALIGN_64__UNION)
    150     union { s8 ll; u4 parts[2]; } conv;
    151 
    152     ptr += idx;
    153     conv.parts[0] = ptr[0];
    154     conv.parts[1] = ptr[1];
    155     return conv.ll;
    156 #else
    157     s8 val;
    158     memcpy(&val, &ptr[idx], 8);
    159     return val;
    160 #endif
    161 }
    162 
    163 /* store a long into an array of u4 */
    164 static inline void putLongToArray(u4* ptr, int idx, s8 val)
    165 {
    166 #if defined(NO_UNALIGN_64__UNION)
    167     union { s8 ll; u4 parts[2]; } conv;
    168 
    169     ptr += idx;
    170     conv.ll = val;
    171     ptr[0] = conv.parts[0];
    172     ptr[1] = conv.parts[1];
    173 #else
    174     memcpy(&ptr[idx], &val, 8);
    175 #endif
    176 }
    177 
    178 /* get a double from an array of u4 */
    179 static inline double getDoubleFromArray(const u4* ptr, int idx)
    180 {
    181 #if defined(NO_UNALIGN_64__UNION)
    182     union { double d; u4 parts[2]; } conv;
    183 
    184     ptr += idx;
    185     conv.parts[0] = ptr[0];
    186     conv.parts[1] = ptr[1];
    187     return conv.d;
    188 #else
    189     double dval;
    190     memcpy(&dval, &ptr[idx], 8);
    191     return dval;
    192 #endif
    193 }
    194 
    195 /* store a double into an array of u4 */
    196 static inline void putDoubleToArray(u4* ptr, int idx, double dval)
    197 {
    198 #if defined(NO_UNALIGN_64__UNION)
    199     union { double d; u4 parts[2]; } conv;
    200 
    201     ptr += idx;
    202     conv.d = dval;
    203     ptr[0] = conv.parts[0];
    204     ptr[1] = conv.parts[1];
    205 #else
    206     memcpy(&ptr[idx], &dval, 8);
    207 #endif
    208 }
    209 
    210 /*
    211  * If enabled, validate the register number on every access.  Otherwise,
    212  * just do an array access.
    213  *
    214  * Assumes the existence of "u4* fp".
    215  *
    216  * "_idx" may be referenced more than once.
    217  */
    218 #ifdef CHECK_REGISTER_INDICES
    219 # define GET_REGISTER(_idx) \
    220     ( (_idx) < curMethod->registersSize ? \
    221         (fp[(_idx)]) : (assert(!"bad reg"),1969) )
    222 # define SET_REGISTER(_idx, _val) \
    223     ( (_idx) < curMethod->registersSize ? \
    224         (fp[(_idx)] = (u4)(_val)) : (assert(!"bad reg"),1969) )
    225 # define GET_REGISTER_AS_OBJECT(_idx)       ((Object *)GET_REGISTER(_idx))
    226 # define SET_REGISTER_AS_OBJECT(_idx, _val) SET_REGISTER(_idx, (s4)_val)
    227 # define GET_REGISTER_INT(_idx) ((s4) GET_REGISTER(_idx))
    228 # define SET_REGISTER_INT(_idx, _val) SET_REGISTER(_idx, (s4)_val)
    229 # define GET_REGISTER_WIDE(_idx) \
    230     ( (_idx) < curMethod->registersSize-1 ? \
    231         getLongFromArray(fp, (_idx)) : (assert(!"bad reg"),1969) )
    232 # define SET_REGISTER_WIDE(_idx, _val) \
    233     ( (_idx) < curMethod->registersSize-1 ? \
    234         (void)putLongToArray(fp, (_idx), (_val)) : assert(!"bad reg") )
    235 # define GET_REGISTER_FLOAT(_idx) \
    236     ( (_idx) < curMethod->registersSize ? \
    237         (*((float*) &fp[(_idx)])) : (assert(!"bad reg"),1969.0f) )
    238 # define SET_REGISTER_FLOAT(_idx, _val) \
    239     ( (_idx) < curMethod->registersSize ? \
    240         (*((float*) &fp[(_idx)]) = (_val)) : (assert(!"bad reg"),1969.0f) )
    241 # define GET_REGISTER_DOUBLE(_idx) \
    242     ( (_idx) < curMethod->registersSize-1 ? \
    243         getDoubleFromArray(fp, (_idx)) : (assert(!"bad reg"),1969.0) )
    244 # define SET_REGISTER_DOUBLE(_idx, _val) \
    245     ( (_idx) < curMethod->registersSize-1 ? \
    246         (void)putDoubleToArray(fp, (_idx), (_val)) : assert(!"bad reg") )
    247 #else
    248 # define GET_REGISTER(_idx)                 (fp[(_idx)])
    249 # define SET_REGISTER(_idx, _val)           (fp[(_idx)] = (_val))
    250 # define GET_REGISTER_AS_OBJECT(_idx)       ((Object*) fp[(_idx)])
    251 # define SET_REGISTER_AS_OBJECT(_idx, _val) (fp[(_idx)] = (u4)(_val))
    252 # define GET_REGISTER_INT(_idx)             ((s4)GET_REGISTER(_idx))
    253 # define SET_REGISTER_INT(_idx, _val)       SET_REGISTER(_idx, (s4)_val)
    254 # define GET_REGISTER_WIDE(_idx)            getLongFromArray(fp, (_idx))
    255 # define SET_REGISTER_WIDE(_idx, _val)      putLongToArray(fp, (_idx), (_val))
    256 # define GET_REGISTER_FLOAT(_idx)           (*((float*) &fp[(_idx)]))
    257 # define SET_REGISTER_FLOAT(_idx, _val)     (*((float*) &fp[(_idx)]) = (_val))
    258 # define GET_REGISTER_DOUBLE(_idx)          getDoubleFromArray(fp, (_idx))
    259 # define SET_REGISTER_DOUBLE(_idx, _val)    putDoubleToArray(fp, (_idx), (_val))
    260 #endif
    261 
    262 /*
    263  * Get 16 bits from the specified offset of the program counter.  We always
    264  * want to load 16 bits at a time from the instruction stream -- it's more
    265  * efficient than 8 and won't have the alignment problems that 32 might.
    266  *
    267  * Assumes existence of "const u2* pc".
    268  */
    269 #define FETCH(_offset)     (pc[(_offset)])
    270 
    271 /*
    272  * Extract instruction byte from 16-bit fetch (_inst is a u2).
    273  */
    274 #define INST_INST(_inst)    ((_inst) & 0xff)
    275 
    276 /*
    277  * Replace the opcode (used when handling breakpoints).  _opcode is a u1.
    278  */
    279 #define INST_REPLACE_OP(_inst, _opcode) (((_inst) & 0xff00) | _opcode)
    280 
    281 /*
    282  * Extract the "vA, vB" 4-bit registers from the instruction word (_inst is u2).
    283  */
    284 #define INST_A(_inst)       (((_inst) >> 8) & 0x0f)
    285 #define INST_B(_inst)       ((_inst) >> 12)
    286 
    287 /*
    288  * Get the 8-bit "vAA" 8-bit register index from the instruction word.
    289  * (_inst is u2)
    290  */
    291 #define INST_AA(_inst)      ((_inst) >> 8)
    292 
    293 /*
    294  * The current PC must be available to Throwable constructors, e.g.
    295  * those created by the various exception throw routines, so that the
    296  * exception stack trace can be generated correctly.  If we don't do this,
    297  * the offset within the current method won't be shown correctly.  See the
    298  * notes in Exception.c.
    299  *
    300  * This is also used to determine the address for precise GC.
    301  *
    302  * Assumes existence of "u4* fp" and "const u2* pc".
    303  */
    304 #define EXPORT_PC()         (SAVEAREA_FROM_FP(fp)->xtra.currentPc = pc)
    305 
    306 /*
    307  * Check to see if "obj" is NULL.  If so, throw an exception.  Assumes the
    308  * pc has already been exported to the stack.
    309  *
    310  * Perform additional checks on debug builds.
    311  *
    312  * Use this to check for NULL when the instruction handler calls into
    313  * something that could throw an exception (so we have already called
    314  * EXPORT_PC at the top).
    315  */
    316 static inline bool checkForNull(Object* obj)
    317 {
    318     if (obj == NULL) {
    319         dvmThrowNullPointerException(NULL);
    320         return false;
    321     }
    322 #ifdef WITH_EXTRA_OBJECT_VALIDATION
    323     if (!dvmIsHeapAddress(obj)) {
    324         ALOGE("Invalid object %p", obj);
    325         dvmAbort();
    326     }
    327 #endif
    328 #ifndef NDEBUG
    329     if (obj->clazz == NULL || ((u4) obj->clazz) <= 65536) {
    330         /* probable heap corruption */
    331         ALOGE("Invalid object class %p (in %p)", obj->clazz, obj);
    332         dvmAbort();
    333     }
    334 #endif
    335     return true;
    336 }
    337 
    338 /*
    339  * Check to see if "obj" is NULL.  If so, export the PC into the stack
    340  * frame and throw an exception.
    341  *
    342  * Perform additional checks on debug builds.
    343  *
    344  * Use this to check for NULL when the instruction handler doesn't do
    345  * anything else that can throw an exception.
    346  */
    347 static inline bool checkForNullExportPC(Object* obj, u4* fp, const u2* pc)
    348 {
    349     if (obj == NULL) {
    350         EXPORT_PC();
    351         dvmThrowNullPointerException(NULL);
    352         return false;
    353     }
    354 #ifdef WITH_EXTRA_OBJECT_VALIDATION
    355     if (!dvmIsHeapAddress(obj)) {
    356         ALOGE("Invalid object %p", obj);
    357         dvmAbort();
    358     }
    359 #endif
    360 #ifndef NDEBUG
    361     if (obj->clazz == NULL || ((u4) obj->clazz) <= 65536) {
    362         /* probable heap corruption */
    363         ALOGE("Invalid object class %p (in %p)", obj->clazz, obj);
    364         dvmAbort();
    365     }
    366 #endif
    367     return true;
    368 }
    369 
    370 /* File: cstubs/stubdefs.cpp */
    371 /*
    372  * In the C mterp stubs, "goto" is a function call followed immediately
    373  * by a return.
    374  */
    375 
    376 #define GOTO_TARGET_DECL(_target, ...)                                      \
    377     extern "C" void dvmMterp_##_target(Thread* self, ## __VA_ARGS__);
    378 
    379 /* (void)xxx to quiet unused variable compiler warnings. */
    380 #define GOTO_TARGET(_target, ...)                                           \
    381     void dvmMterp_##_target(Thread* self, ## __VA_ARGS__) {                 \
    382         u2 ref, vsrc1, vsrc2, vdst;                                         \
    383         u2 inst = FETCH(0);                                                 \
    384         const Method* methodToCall;                                         \
    385         StackSaveArea* debugSaveArea;                                       \
    386         (void)ref; (void)vsrc1; (void)vsrc2; (void)vdst; (void)inst;        \
    387         (void)methodToCall; (void)debugSaveArea;
    388 
    389 #define GOTO_TARGET_END }
    390 
    391 /*
    392  * Redefine what used to be local variable accesses into Thread struct
    393  * references.  (These are undefined down in "footer.cpp".)
    394  */
    395 #define retval                  self->interpSave.retval
    396 #define pc                      self->interpSave.pc
    397 #define fp                      self->interpSave.curFrame
    398 #define curMethod               self->interpSave.method
    399 #define methodClassDex          self->interpSave.methodClassDex
    400 #define debugTrackedRefStart    self->interpSave.debugTrackedRefStart
    401 
    402 /* ugh */
    403 #define STUB_HACK(x) x
    404 #if defined(WITH_JIT)
    405 #define JIT_STUB_HACK(x) x
    406 #else
    407 #define JIT_STUB_HACK(x)
    408 #endif
    409 
    410 /*
    411  * InterpSave's pc and fp must be valid when breaking out to a
    412  * "Reportxxx" routine.  Because the portable interpreter uses local
    413  * variables for these, we must flush prior.  Stubs, however, use
    414  * the interpSave vars directly, so this is a nop for stubs.
    415  */
    416 #define PC_FP_TO_SELF()
    417 #define PC_TO_SELF()
    418 
    419 /*
    420  * Opcode handler framing macros.  Here, each opcode is a separate function
    421  * that takes a "self" argument and returns void.  We can't declare
    422  * these "static" because they may be called from an assembly stub.
    423  * (void)xxx to quiet unused variable compiler warnings.
    424  */
    425 #define HANDLE_OPCODE(_op)                                                  \
    426     extern "C" void dvmMterp_##_op(Thread* self);                           \
    427     void dvmMterp_##_op(Thread* self) {                                     \
    428         u4 ref;                                                             \
    429         u2 vsrc1, vsrc2, vdst;                                              \
    430         u2 inst = FETCH(0);                                                 \
    431         (void)ref; (void)vsrc1; (void)vsrc2; (void)vdst; (void)inst;
    432 
    433 #define OP_END }
    434 
    435 /*
    436  * Like the "portable" FINISH, but don't reload "inst", and return to caller
    437  * when done.  Further, debugger/profiler checks are handled
    438  * before handler execution in mterp, so we don't do them here either.
    439  */
    440 #if defined(WITH_JIT)
    441 #define FINISH(_offset) {                                                   \
    442         ADJUST_PC(_offset);                                                 \
    443         if (self->interpBreak.ctl.subMode & kSubModeJitTraceBuild) {        \
    444             dvmCheckJit(pc, self);                                          \
    445         }                                                                   \
    446         return;                                                             \
    447     }
    448 #else
    449 #define FINISH(_offset) {                                                   \
    450         ADJUST_PC(_offset);                                                 \
    451         return;                                                             \
    452     }
    453 #endif
    454 
    455 
    456 /*
    457  * The "goto label" statements turn into function calls followed by
    458  * return statements.  Some of the functions take arguments, which in the
    459  * portable interpreter are handled by assigning values to globals.
    460  */
    461 
    462 #define GOTO_exceptionThrown()                                              \
    463     do {                                                                    \
    464         dvmMterp_exceptionThrown(self);                                     \
    465         return;                                                             \
    466     } while(false)
    467 
    468 #define GOTO_returnFromMethod()                                             \
    469     do {                                                                    \
    470         dvmMterp_returnFromMethod(self);                                    \
    471         return;                                                             \
    472     } while(false)
    473 
    474 #define GOTO_invoke(_target, _methodCallRange)                              \
    475     do {                                                                    \
    476         dvmMterp_##_target(self, _methodCallRange);                         \
    477         return;                                                             \
    478     } while(false)
    479 
    480 #define GOTO_invokeMethod(_methodCallRange, _methodToCall, _vsrc1, _vdst)   \
    481     do {                                                                    \
    482         dvmMterp_invokeMethod(self, _methodCallRange, _methodToCall,        \
    483             _vsrc1, _vdst);                                                 \
    484         return;                                                             \
    485     } while(false)
    486 
    487 /*
    488  * As a special case, "goto bail" turns into a longjmp.
    489  */
    490 #define GOTO_bail()                                                         \
    491     dvmMterpStdBail(self, false);
    492 
    493 /*
    494  * Periodically check for thread suspension.
    495  *
    496  * While we're at it, see if a debugger has attached or the profiler has
    497  * started.
    498  */
    499 #define PERIODIC_CHECKS(_pcadj) {                              \
    500         if (dvmCheckSuspendQuick(self)) {                                   \
    501             EXPORT_PC();  /* need for precise GC */                         \
    502             dvmCheckSuspendPending(self);                                   \
    503         }                                                                   \
    504     }
    505 
    506 /* File: c/opcommon.cpp */
    507 /* forward declarations of goto targets */
    508 GOTO_TARGET_DECL(filledNewArray, bool methodCallRange);
    509 GOTO_TARGET_DECL(invokeVirtual, bool methodCallRange);
    510 GOTO_TARGET_DECL(invokeSuper, bool methodCallRange);
    511 GOTO_TARGET_DECL(invokeInterface, bool methodCallRange);
    512 GOTO_TARGET_DECL(invokeDirect, bool methodCallRange);
    513 GOTO_TARGET_DECL(invokeStatic, bool methodCallRange);
    514 GOTO_TARGET_DECL(invokeVirtualQuick, bool methodCallRange);
    515 GOTO_TARGET_DECL(invokeSuperQuick, bool methodCallRange);
    516 GOTO_TARGET_DECL(invokeMethod, bool methodCallRange, const Method* methodToCall,
    517     u2 count, u2 regs);
    518 GOTO_TARGET_DECL(returnFromMethod);
    519 GOTO_TARGET_DECL(exceptionThrown);
    520 
    521 /*
    522  * ===========================================================================
    523  *
    524  * What follows are opcode definitions shared between multiple opcodes with
    525  * minor substitutions handled by the C pre-processor.  These should probably
    526  * use the mterp substitution mechanism instead, with the code here moved
    527  * into common fragment files (like the asm "binop.S"), although it's hard
    528  * to give up the C preprocessor in favor of the much simpler text subst.
    529  *
    530  * ===========================================================================
    531  */
    532 
    533 #define HANDLE_NUMCONV(_opcode, _opname, _fromtype, _totype)                \
    534     HANDLE_OPCODE(_opcode /*vA, vB*/)                                       \
    535         vdst = INST_A(inst);                                                \
    536         vsrc1 = INST_B(inst);                                               \
    537         ILOGV("|%s v%d,v%d", (_opname), vdst, vsrc1);                       \
    538         SET_REGISTER##_totype(vdst,                                         \
    539             GET_REGISTER##_fromtype(vsrc1));                                \
    540         FINISH(1);
    541 
    542 #define HANDLE_FLOAT_TO_INT(_opcode, _opname, _fromvtype, _fromrtype,       \
    543         _tovtype, _tortype)                                                 \
    544     HANDLE_OPCODE(_opcode /*vA, vB*/)                                       \
    545     {                                                                       \
    546         /* spec defines specific handling for +/- inf and NaN values */     \
    547         _fromvtype val;                                                     \
    548         _tovtype intMin, intMax, result;                                    \
    549         vdst = INST_A(inst);                                                \
    550         vsrc1 = INST_B(inst);                                               \
    551         ILOGV("|%s v%d,v%d", (_opname), vdst, vsrc1);                       \
    552         val = GET_REGISTER##_fromrtype(vsrc1);                              \
    553         intMin = (_tovtype) 1 << (sizeof(_tovtype) * 8 -1);                 \
    554         intMax = ~intMin;                                                   \
    555         result = (_tovtype) val;                                            \
    556         if (val >= intMax)          /* +inf */                              \
    557             result = intMax;                                                \
    558         else if (val <= intMin)     /* -inf */                              \
    559             result = intMin;                                                \
    560         else if (val != val)        /* NaN */                               \
    561             result = 0;                                                     \
    562         else                                                                \
    563             result = (_tovtype) val;                                        \
    564         SET_REGISTER##_tortype(vdst, result);                               \
    565     }                                                                       \
    566     FINISH(1);
    567 
    568 #define HANDLE_INT_TO_SMALL(_opcode, _opname, _type)                        \
    569     HANDLE_OPCODE(_opcode /*vA, vB*/)                                       \
    570         vdst = INST_A(inst);                                                \
    571         vsrc1 = INST_B(inst);                                               \
    572         ILOGV("|int-to-%s v%d,v%d", (_opname), vdst, vsrc1);                \
    573         SET_REGISTER(vdst, (_type) GET_REGISTER(vsrc1));                    \
    574         FINISH(1);
    575 
    576 /* NOTE: the comparison result is always a signed 4-byte integer */
    577 #define HANDLE_OP_CMPX(_opcode, _opname, _varType, _type, _nanVal)          \
    578     HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/)                                \
    579     {                                                                       \
    580         int result;                                                         \
    581         u2 regs;                                                            \
    582         _varType val1, val2;                                                \
    583         vdst = INST_AA(inst);                                               \
    584         regs = FETCH(1);                                                    \
    585         vsrc1 = regs & 0xff;                                                \
    586         vsrc2 = regs >> 8;                                                  \
    587         ILOGV("|cmp%s v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2);         \
    588         val1 = GET_REGISTER##_type(vsrc1);                                  \
    589         val2 = GET_REGISTER##_type(vsrc2);                                  \
    590         if (val1 == val2)                                                   \
    591             result = 0;                                                     \
    592         else if (val1 < val2)                                               \
    593             result = -1;                                                    \
    594         else if (val1 > val2)                                               \
    595             result = 1;                                                     \
    596         else                                                                \
    597             result = (_nanVal);                                             \
    598         ILOGV("+ result=%d", result);                                       \
    599         SET_REGISTER(vdst, result);                                         \
    600     }                                                                       \
    601     FINISH(2);
    602 
    603 #define HANDLE_OP_IF_XX(_opcode, _opname, _cmp)                             \
    604     HANDLE_OPCODE(_opcode /*vA, vB, +CCCC*/)                                \
    605         vsrc1 = INST_A(inst);                                               \
    606         vsrc2 = INST_B(inst);                                               \
    607         if ((s4) GET_REGISTER(vsrc1) _cmp (s4) GET_REGISTER(vsrc2)) {       \
    608             int branchOffset = (s2)FETCH(1);    /* sign-extended */         \
    609             ILOGV("|if-%s v%d,v%d,+0x%04x", (_opname), vsrc1, vsrc2,        \
    610                 branchOffset);                                              \
    611             ILOGV("> branch taken");                                        \
    612             if (branchOffset < 0)                                           \
    613                 PERIODIC_CHECKS(branchOffset);                              \
    614             FINISH(branchOffset);                                           \
    615         } else {                                                            \
    616             ILOGV("|if-%s v%d,v%d,-", (_opname), vsrc1, vsrc2);             \
    617             FINISH(2);                                                      \
    618         }
    619 
    620 #define HANDLE_OP_IF_XXZ(_opcode, _opname, _cmp)                            \
    621     HANDLE_OPCODE(_opcode /*vAA, +BBBB*/)                                   \
    622         vsrc1 = INST_AA(inst);                                              \
    623         if ((s4) GET_REGISTER(vsrc1) _cmp 0) {                              \
    624             int branchOffset = (s2)FETCH(1);    /* sign-extended */         \
    625             ILOGV("|if-%s v%d,+0x%04x", (_opname), vsrc1, branchOffset);    \
    626             ILOGV("> branch taken");                                        \
    627             if (branchOffset < 0)                                           \
    628                 PERIODIC_CHECKS(branchOffset);                              \
    629             FINISH(branchOffset);                                           \
    630         } else {                                                            \
    631             ILOGV("|if-%s v%d,-", (_opname), vsrc1);                        \
    632             FINISH(2);                                                      \
    633         }
    634 
    635 #define HANDLE_UNOP(_opcode, _opname, _pfx, _sfx, _type)                    \
    636     HANDLE_OPCODE(_opcode /*vA, vB*/)                                       \
    637         vdst = INST_A(inst);                                                \
    638         vsrc1 = INST_B(inst);                                               \
    639         ILOGV("|%s v%d,v%d", (_opname), vdst, vsrc1);                       \
    640         SET_REGISTER##_type(vdst, _pfx GET_REGISTER##_type(vsrc1) _sfx);    \
    641         FINISH(1);
    642 
    643 #define HANDLE_OP_X_INT(_opcode, _opname, _op, _chkdiv)                     \
    644     HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/)                                \
    645     {                                                                       \
    646         u2 srcRegs;                                                         \
    647         vdst = INST_AA(inst);                                               \
    648         srcRegs = FETCH(1);                                                 \
    649         vsrc1 = srcRegs & 0xff;                                             \
    650         vsrc2 = srcRegs >> 8;                                               \
    651         ILOGV("|%s-int v%d,v%d", (_opname), vdst, vsrc1);                   \
    652         if (_chkdiv != 0) {                                                 \
    653             s4 firstVal, secondVal, result;                                 \
    654             firstVal = GET_REGISTER(vsrc1);                                 \
    655             secondVal = GET_REGISTER(vsrc2);                                \
    656             if (secondVal == 0) {                                           \
    657                 EXPORT_PC();                                                \
    658                 dvmThrowArithmeticException("divide by zero");              \
    659                 GOTO_exceptionThrown();                                     \
    660             }                                                               \
    661             if ((u4)firstVal == 0x80000000 && secondVal == -1) {            \
    662                 if (_chkdiv == 1)                                           \
    663                     result = firstVal;  /* division */                      \
    664                 else                                                        \
    665                     result = 0;         /* remainder */                     \
    666             } else {                                                        \
    667                 result = firstVal _op secondVal;                            \
    668             }                                                               \
    669             SET_REGISTER(vdst, result);                                     \
    670         } else {                                                            \
    671             /* non-div/rem case */                                          \
    672             SET_REGISTER(vdst,                                              \
    673                 (s4) GET_REGISTER(vsrc1) _op (s4) GET_REGISTER(vsrc2));     \
    674         }                                                                   \
    675     }                                                                       \
    676     FINISH(2);
    677 
    678 #define HANDLE_OP_SHX_INT(_opcode, _opname, _cast, _op)                     \
    679     HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/)                                \
    680     {                                                                       \
    681         u2 srcRegs;                                                         \
    682         vdst = INST_AA(inst);                                               \
    683         srcRegs = FETCH(1);                                                 \
    684         vsrc1 = srcRegs & 0xff;                                             \
    685         vsrc2 = srcRegs >> 8;                                               \
    686         ILOGV("|%s-int v%d,v%d", (_opname), vdst, vsrc1);                   \
    687         SET_REGISTER(vdst,                                                  \
    688             _cast GET_REGISTER(vsrc1) _op (GET_REGISTER(vsrc2) & 0x1f));    \
    689     }                                                                       \
    690     FINISH(2);
    691 
    692 #define HANDLE_OP_X_INT_LIT16(_opcode, _opname, _op, _chkdiv)               \
    693     HANDLE_OPCODE(_opcode /*vA, vB, #+CCCC*/)                               \
    694         vdst = INST_A(inst);                                                \
    695         vsrc1 = INST_B(inst);                                               \
    696         vsrc2 = FETCH(1);                                                   \
    697         ILOGV("|%s-int/lit16 v%d,v%d,#+0x%04x",                             \
    698             (_opname), vdst, vsrc1, vsrc2);                                 \
    699         if (_chkdiv != 0) {                                                 \
    700             s4 firstVal, result;                                            \
    701             firstVal = GET_REGISTER(vsrc1);                                 \
    702             if ((s2) vsrc2 == 0) {                                          \
    703                 EXPORT_PC();                                                \
    704                 dvmThrowArithmeticException("divide by zero");              \
    705                 GOTO_exceptionThrown();                                     \
    706             }                                                               \
    707             if ((u4)firstVal == 0x80000000 && ((s2) vsrc2) == -1) {         \
    708                 /* won't generate /lit16 instr for this; check anyway */    \
    709                 if (_chkdiv == 1)                                           \
    710                     result = firstVal;  /* division */                      \
    711                 else                                                        \
    712                     result = 0;         /* remainder */                     \
    713             } else {                                                        \
    714                 result = firstVal _op (s2) vsrc2;                           \
    715             }                                                               \
    716             SET_REGISTER(vdst, result);                                     \
    717         } else {                                                            \
    718             /* non-div/rem case */                                          \
    719             SET_REGISTER(vdst, GET_REGISTER(vsrc1) _op (s2) vsrc2);         \
    720         }                                                                   \
    721         FINISH(2);
    722 
    723 #define HANDLE_OP_X_INT_LIT8(_opcode, _opname, _op, _chkdiv)                \
    724     HANDLE_OPCODE(_opcode /*vAA, vBB, #+CC*/)                               \
    725     {                                                                       \
    726         u2 litInfo;                                                         \
    727         vdst = INST_AA(inst);                                               \
    728         litInfo = FETCH(1);                                                 \
    729         vsrc1 = litInfo & 0xff;                                             \
    730         vsrc2 = litInfo >> 8;       /* constant */                          \
    731         ILOGV("|%s-int/lit8 v%d,v%d,#+0x%02x",                              \
    732             (_opname), vdst, vsrc1, vsrc2);                                 \
    733         if (_chkdiv != 0) {                                                 \
    734             s4 firstVal, result;                                            \
    735             firstVal = GET_REGISTER(vsrc1);                                 \
    736             if ((s1) vsrc2 == 0) {                                          \
    737                 EXPORT_PC();                                                \
    738                 dvmThrowArithmeticException("divide by zero");              \
    739                 GOTO_exceptionThrown();                                     \
    740             }                                                               \
    741             if ((u4)firstVal == 0x80000000 && ((s1) vsrc2) == -1) {         \
    742                 if (_chkdiv == 1)                                           \
    743                     result = firstVal;  /* division */                      \
    744                 else                                                        \
    745                     result = 0;         /* remainder */                     \
    746             } else {                                                        \
    747                 result = firstVal _op ((s1) vsrc2);                         \
    748             }                                                               \
    749             SET_REGISTER(vdst, result);                                     \
    750         } else {                                                            \
    751             SET_REGISTER(vdst,                                              \
    752                 (s4) GET_REGISTER(vsrc1) _op (s1) vsrc2);                   \
    753         }                                                                   \
    754     }                                                                       \
    755     FINISH(2);
    756 
    757 #define HANDLE_OP_SHX_INT_LIT8(_opcode, _opname, _cast, _op)                \
    758     HANDLE_OPCODE(_opcode /*vAA, vBB, #+CC*/)                               \
    759     {                                                                       \
    760         u2 litInfo;                                                         \
    761         vdst = INST_AA(inst);                                               \
    762         litInfo = FETCH(1);                                                 \
    763         vsrc1 = litInfo & 0xff;                                             \
    764         vsrc2 = litInfo >> 8;       /* constant */                          \
    765         ILOGV("|%s-int/lit8 v%d,v%d,#+0x%02x",                              \
    766             (_opname), vdst, vsrc1, vsrc2);                                 \
    767         SET_REGISTER(vdst,                                                  \
    768             _cast GET_REGISTER(vsrc1) _op (vsrc2 & 0x1f));                  \
    769     }                                                                       \
    770     FINISH(2);
    771 
    772 #define HANDLE_OP_X_INT_2ADDR(_opcode, _opname, _op, _chkdiv)               \
    773     HANDLE_OPCODE(_opcode /*vA, vB*/)                                       \
    774         vdst = INST_A(inst);                                                \
    775         vsrc1 = INST_B(inst);                                               \
    776         ILOGV("|%s-int-2addr v%d,v%d", (_opname), vdst, vsrc1);             \
    777         if (_chkdiv != 0) {                                                 \
    778             s4 firstVal, secondVal, result;                                 \
    779             firstVal = GET_REGISTER(vdst);                                  \
    780             secondVal = GET_REGISTER(vsrc1);                                \
    781             if (secondVal == 0) {                                           \
    782                 EXPORT_PC();                                                \
    783                 dvmThrowArithmeticException("divide by zero");              \
    784                 GOTO_exceptionThrown();                                     \
    785             }                                                               \
    786             if ((u4)firstVal == 0x80000000 && secondVal == -1) {            \
    787                 if (_chkdiv == 1)                                           \
    788                     result = firstVal;  /* division */                      \
    789                 else                                                        \
    790                     result = 0;         /* remainder */                     \
    791             } else {                                                        \
    792                 result = firstVal _op secondVal;                            \
    793             }                                                               \
    794             SET_REGISTER(vdst, result);                                     \
    795         } else {                                                            \
    796             SET_REGISTER(vdst,                                              \
    797                 (s4) GET_REGISTER(vdst) _op (s4) GET_REGISTER(vsrc1));      \
    798         }                                                                   \
    799         FINISH(1);
    800 
    801 #define HANDLE_OP_SHX_INT_2ADDR(_opcode, _opname, _cast, _op)               \
    802     HANDLE_OPCODE(_opcode /*vA, vB*/)                                       \
    803         vdst = INST_A(inst);                                                \
    804         vsrc1 = INST_B(inst);                                               \
    805         ILOGV("|%s-int-2addr v%d,v%d", (_opname), vdst, vsrc1);             \
    806         SET_REGISTER(vdst,                                                  \
    807             _cast GET_REGISTER(vdst) _op (GET_REGISTER(vsrc1) & 0x1f));     \
    808         FINISH(1);
    809 
    810 #define HANDLE_OP_X_LONG(_opcode, _opname, _op, _chkdiv)                    \
    811     HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/)                                \
    812     {                                                                       \
    813         u2 srcRegs;                                                         \
    814         vdst = INST_AA(inst);                                               \
    815         srcRegs = FETCH(1);                                                 \
    816         vsrc1 = srcRegs & 0xff;                                             \
    817         vsrc2 = srcRegs >> 8;                                               \
    818         ILOGV("|%s-long v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2);       \
    819         if (_chkdiv != 0) {                                                 \
    820             s8 firstVal, secondVal, result;                                 \
    821             firstVal = GET_REGISTER_WIDE(vsrc1);                            \
    822             secondVal = GET_REGISTER_WIDE(vsrc2);                           \
    823             if (secondVal == 0LL) {                                         \
    824                 EXPORT_PC();                                                \
    825                 dvmThrowArithmeticException("divide by zero");              \
    826                 GOTO_exceptionThrown();                                     \
    827             }                                                               \
    828             if ((u8)firstVal == 0x8000000000000000ULL &&                    \
    829                 secondVal == -1LL)                                          \
    830             {                                                               \
    831                 if (_chkdiv == 1)                                           \
    832                     result = firstVal;  /* division */                      \
    833                 else                                                        \
    834                     result = 0;         /* remainder */                     \
    835             } else {                                                        \
    836                 result = firstVal _op secondVal;                            \
    837             }                                                               \
    838             SET_REGISTER_WIDE(vdst, result);                                \
    839         } else {                                                            \
    840             SET_REGISTER_WIDE(vdst,                                         \
    841                 (s8) GET_REGISTER_WIDE(vsrc1) _op (s8) GET_REGISTER_WIDE(vsrc2)); \
    842         }                                                                   \
    843     }                                                                       \
    844     FINISH(2);
    845 
    846 #define HANDLE_OP_SHX_LONG(_opcode, _opname, _cast, _op)                    \
    847     HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/)                                \
    848     {                                                                       \
    849         u2 srcRegs;                                                         \
    850         vdst = INST_AA(inst);                                               \
    851         srcRegs = FETCH(1);                                                 \
    852         vsrc1 = srcRegs & 0xff;                                             \
    853         vsrc2 = srcRegs >> 8;                                               \
    854         ILOGV("|%s-long v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2);       \
    855         SET_REGISTER_WIDE(vdst,                                             \
    856             _cast GET_REGISTER_WIDE(vsrc1) _op (GET_REGISTER(vsrc2) & 0x3f)); \
    857     }                                                                       \
    858     FINISH(2);
    859 
    860 #define HANDLE_OP_X_LONG_2ADDR(_opcode, _opname, _op, _chkdiv)              \
    861     HANDLE_OPCODE(_opcode /*vA, vB*/)                                       \
    862         vdst = INST_A(inst);                                                \
    863         vsrc1 = INST_B(inst);                                               \
    864         ILOGV("|%s-long-2addr v%d,v%d", (_opname), vdst, vsrc1);            \
    865         if (_chkdiv != 0) {                                                 \
    866             s8 firstVal, secondVal, result;                                 \
    867             firstVal = GET_REGISTER_WIDE(vdst);                             \
    868             secondVal = GET_REGISTER_WIDE(vsrc1);                           \
    869             if (secondVal == 0LL) {                                         \
    870                 EXPORT_PC();                                                \
    871                 dvmThrowArithmeticException("divide by zero");              \
    872                 GOTO_exceptionThrown();                                     \
    873             }                                                               \
    874             if ((u8)firstVal == 0x8000000000000000ULL &&                    \
    875                 secondVal == -1LL)                                          \
    876             {                                                               \
    877                 if (_chkdiv == 1)                                           \
    878                     result = firstVal;  /* division */                      \
    879                 else                                                        \
    880                     result = 0;         /* remainder */                     \
    881             } else {                                                        \
    882                 result = firstVal _op secondVal;                            \
    883             }                                                               \
    884             SET_REGISTER_WIDE(vdst, result);                                \
    885         } else {                                                            \
    886             SET_REGISTER_WIDE(vdst,                                         \
    887                 (s8) GET_REGISTER_WIDE(vdst) _op (s8)GET_REGISTER_WIDE(vsrc1));\
    888         }                                                                   \
    889         FINISH(1);
    890 
    891 #define HANDLE_OP_SHX_LONG_2ADDR(_opcode, _opname, _cast, _op)              \
    892     HANDLE_OPCODE(_opcode /*vA, vB*/)                                       \
    893         vdst = INST_A(inst);                                                \
    894         vsrc1 = INST_B(inst);                                               \
    895         ILOGV("|%s-long-2addr v%d,v%d", (_opname), vdst, vsrc1);            \
    896         SET_REGISTER_WIDE(vdst,                                             \
    897             _cast GET_REGISTER_WIDE(vdst) _op (GET_REGISTER(vsrc1) & 0x3f)); \
    898         FINISH(1);
    899 
    900 #define HANDLE_OP_X_FLOAT(_opcode, _opname, _op)                            \
    901     HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/)                                \
    902     {                                                                       \
    903         u2 srcRegs;                                                         \
    904         vdst = INST_AA(inst);                                               \
    905         srcRegs = FETCH(1);                                                 \
    906         vsrc1 = srcRegs & 0xff;                                             \
    907         vsrc2 = srcRegs >> 8;                                               \
    908         ILOGV("|%s-float v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2);      \
    909         SET_REGISTER_FLOAT(vdst,                                            \
    910             GET_REGISTER_FLOAT(vsrc1) _op GET_REGISTER_FLOAT(vsrc2));       \
    911     }                                                                       \
    912     FINISH(2);
    913 
    914 #define HANDLE_OP_X_DOUBLE(_opcode, _opname, _op)                           \
    915     HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/)                                \
    916     {                                                                       \
    917         u2 srcRegs;                                                         \
    918         vdst = INST_AA(inst);                                               \
    919         srcRegs = FETCH(1);                                                 \
    920         vsrc1 = srcRegs & 0xff;                                             \
    921         vsrc2 = srcRegs >> 8;                                               \
    922         ILOGV("|%s-double v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2);     \
    923         SET_REGISTER_DOUBLE(vdst,                                           \
    924             GET_REGISTER_DOUBLE(vsrc1) _op GET_REGISTER_DOUBLE(vsrc2));     \
    925     }                                                                       \
    926     FINISH(2);
    927 
    928 #define HANDLE_OP_X_FLOAT_2ADDR(_opcode, _opname, _op)                      \
    929     HANDLE_OPCODE(_opcode /*vA, vB*/)                                       \
    930         vdst = INST_A(inst);                                                \
    931         vsrc1 = INST_B(inst);                                               \
    932         ILOGV("|%s-float-2addr v%d,v%d", (_opname), vdst, vsrc1);           \
    933         SET_REGISTER_FLOAT(vdst,                                            \
    934             GET_REGISTER_FLOAT(vdst) _op GET_REGISTER_FLOAT(vsrc1));        \
    935         FINISH(1);
    936 
    937 #define HANDLE_OP_X_DOUBLE_2ADDR(_opcode, _opname, _op)                     \
    938     HANDLE_OPCODE(_opcode /*vA, vB*/)                                       \
    939         vdst = INST_A(inst);                                                \
    940         vsrc1 = INST_B(inst);                                               \
    941         ILOGV("|%s-double-2addr v%d,v%d", (_opname), vdst, vsrc1);          \
    942         SET_REGISTER_DOUBLE(vdst,                                           \
    943             GET_REGISTER_DOUBLE(vdst) _op GET_REGISTER_DOUBLE(vsrc1));      \
    944         FINISH(1);
    945 
    946 #define HANDLE_OP_AGET(_opcode, _opname, _type, _regsize)                   \
    947     HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/)                                \
    948     {                                                                       \
    949         ArrayObject* arrayObj;                                              \
    950         u2 arrayInfo;                                                       \
    951         EXPORT_PC();                                                        \
    952         vdst = INST_AA(inst);                                               \
    953         arrayInfo = FETCH(1);                                               \
    954         vsrc1 = arrayInfo & 0xff;    /* array ptr */                        \
    955         vsrc2 = arrayInfo >> 8;      /* index */                            \
    956         ILOGV("|aget%s v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2);        \
    957         arrayObj = (ArrayObject*) GET_REGISTER(vsrc1);                      \
    958         if (!checkForNull((Object*) arrayObj))                              \
    959             GOTO_exceptionThrown();                                         \
    960         if (GET_REGISTER(vsrc2) >= arrayObj->length) {                      \
    961             dvmThrowArrayIndexOutOfBoundsException(                         \
    962                 arrayObj->length, GET_REGISTER(vsrc2));                     \
    963             GOTO_exceptionThrown();                                         \
    964         }                                                                   \
    965         SET_REGISTER##_regsize(vdst,                                        \
    966             ((_type*)(void*)arrayObj->contents)[GET_REGISTER(vsrc2)]);      \
    967         ILOGV("+ AGET[%d]=%#x", GET_REGISTER(vsrc2), GET_REGISTER(vdst));   \
    968     }                                                                       \
    969     FINISH(2);
    970 
    971 #define HANDLE_OP_APUT(_opcode, _opname, _type, _regsize)                   \
    972     HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/)                                \
    973     {                                                                       \
    974         ArrayObject* arrayObj;                                              \
    975         u2 arrayInfo;                                                       \
    976         EXPORT_PC();                                                        \
    977         vdst = INST_AA(inst);       /* AA: source value */                  \
    978         arrayInfo = FETCH(1);                                               \
    979         vsrc1 = arrayInfo & 0xff;   /* BB: array ptr */                     \
    980         vsrc2 = arrayInfo >> 8;     /* CC: index */                         \
    981         ILOGV("|aput%s v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2);        \
    982         arrayObj = (ArrayObject*) GET_REGISTER(vsrc1);                      \
    983         if (!checkForNull((Object*) arrayObj))                              \
    984             GOTO_exceptionThrown();                                         \
    985         if (GET_REGISTER(vsrc2) >= arrayObj->length) {                      \
    986             dvmThrowArrayIndexOutOfBoundsException(                         \
    987                 arrayObj->length, GET_REGISTER(vsrc2));                     \
    988             GOTO_exceptionThrown();                                         \
    989         }                                                                   \
    990         ILOGV("+ APUT[%d]=0x%08x", GET_REGISTER(vsrc2), GET_REGISTER(vdst));\
    991         ((_type*)(void*)arrayObj->contents)[GET_REGISTER(vsrc2)] =          \
    992             GET_REGISTER##_regsize(vdst);                                   \
    993     }                                                                       \
    994     FINISH(2);
    995 
    996 /*
    997  * It's possible to get a bad value out of a field with sub-32-bit stores
    998  * because the -quick versions always operate on 32 bits.  Consider:
    999  *   short foo = -1  (sets a 32-bit register to 0xffffffff)
   1000  *   iput-quick foo  (writes all 32 bits to the field)
   1001  *   short bar = 1   (sets a 32-bit register to 0x00000001)
   1002  *   iput-short      (writes the low 16 bits to the field)
   1003  *   iget-quick foo  (reads all 32 bits from the field, yielding 0xffff0001)
   1004  * This can only happen when optimized and non-optimized code has interleaved
   1005  * access to the same field.  This is unlikely but possible.
   1006  *
   1007  * The easiest way to fix this is to always read/write 32 bits at a time.  On
   1008  * a device with a 16-bit data bus this is sub-optimal.  (The alternative
   1009  * approach is to have sub-int versions of iget-quick, but now we're wasting
   1010  * Dalvik instruction space and making it less likely that handler code will
   1011  * already be in the CPU i-cache.)
   1012  */
   1013 #define HANDLE_IGET_X(_opcode, _opname, _ftype, _regsize)                   \
   1014     HANDLE_OPCODE(_opcode /*vA, vB, field@CCCC*/)                           \
   1015     {                                                                       \
   1016         InstField* ifield;                                                  \
   1017         Object* obj;                                                        \
   1018         EXPORT_PC();                                                        \
   1019         vdst = INST_A(inst);                                                \
   1020         vsrc1 = INST_B(inst);   /* object ptr */                            \
   1021         ref = FETCH(1);         /* field ref */                             \
   1022         ILOGV("|iget%s v%d,v%d,field@0x%04x", (_opname), vdst, vsrc1, ref); \
   1023         obj = (Object*) GET_REGISTER(vsrc1);                                \
   1024         if (!checkForNull(obj))                                             \
   1025             GOTO_exceptionThrown();                                         \
   1026         ifield = (InstField*) dvmDexGetResolvedField(methodClassDex, ref);  \
   1027         if (ifield == NULL) {                                               \
   1028             ifield = dvmResolveInstField(curMethod->clazz, ref);            \
   1029             if (ifield == NULL)                                             \
   1030                 GOTO_exceptionThrown();                                     \
   1031         }                                                                   \
   1032         SET_REGISTER##_regsize(vdst,                                        \
   1033             dvmGetField##_ftype(obj, ifield->byteOffset));                  \
   1034         ILOGV("+ IGET '%s'=0x%08llx", ifield->field.name,                   \
   1035             (u8) GET_REGISTER##_regsize(vdst));                             \
   1036     }                                                                       \
   1037     FINISH(2);
   1038 
   1039 #define HANDLE_IGET_X_QUICK(_opcode, _opname, _ftype, _regsize)             \
   1040     HANDLE_OPCODE(_opcode /*vA, vB, field@CCCC*/)                           \
   1041     {                                                                       \
   1042         Object* obj;                                                        \
   1043         vdst = INST_A(inst);                                                \
   1044         vsrc1 = INST_B(inst);   /* object ptr */                            \
   1045         ref = FETCH(1);         /* field offset */                          \
   1046         ILOGV("|iget%s-quick v%d,v%d,field@+%u",                            \
   1047             (_opname), vdst, vsrc1, ref);                                   \
   1048         obj = (Object*) GET_REGISTER(vsrc1);                                \
   1049         if (!checkForNullExportPC(obj, fp, pc))                             \
   1050             GOTO_exceptionThrown();                                         \
   1051         SET_REGISTER##_regsize(vdst, dvmGetField##_ftype(obj, ref));        \
   1052         ILOGV("+ IGETQ %d=0x%08llx", ref,                                   \
   1053             (u8) GET_REGISTER##_regsize(vdst));                             \
   1054     }                                                                       \
   1055     FINISH(2);
   1056 
   1057 #define HANDLE_IPUT_X(_opcode, _opname, _ftype, _regsize)                   \
   1058     HANDLE_OPCODE(_opcode /*vA, vB, field@CCCC*/)                           \
   1059     {                                                                       \
   1060         InstField* ifield;                                                  \
   1061         Object* obj;                                                        \
   1062         EXPORT_PC();                                                        \
   1063         vdst = INST_A(inst);                                                \
   1064         vsrc1 = INST_B(inst);   /* object ptr */                            \
   1065         ref = FETCH(1);         /* field ref */                             \
   1066         ILOGV("|iput%s v%d,v%d,field@0x%04x", (_opname), vdst, vsrc1, ref); \
   1067         obj = (Object*) GET_REGISTER(vsrc1);                                \
   1068         if (!checkForNull(obj))                                             \
   1069             GOTO_exceptionThrown();                                         \
   1070         ifield = (InstField*) dvmDexGetResolvedField(methodClassDex, ref);  \
   1071         if (ifield == NULL) {                                               \
   1072             ifield = dvmResolveInstField(curMethod->clazz, ref);            \
   1073             if (ifield == NULL)                                             \
   1074                 GOTO_exceptionThrown();                                     \
   1075         }                                                                   \
   1076         dvmSetField##_ftype(obj, ifield->byteOffset,                        \
   1077             GET_REGISTER##_regsize(vdst));                                  \
   1078         ILOGV("+ IPUT '%s'=0x%08llx", ifield->field.name,                   \
   1079             (u8) GET_REGISTER##_regsize(vdst));                             \
   1080     }                                                                       \
   1081     FINISH(2);
   1082 
   1083 #define HANDLE_IPUT_X_QUICK(_opcode, _opname, _ftype, _regsize)             \
   1084     HANDLE_OPCODE(_opcode /*vA, vB, field@CCCC*/)                           \
   1085     {                                                                       \
   1086         Object* obj;                                                        \
   1087         vdst = INST_A(inst);                                                \
   1088         vsrc1 = INST_B(inst);   /* object ptr */                            \
   1089         ref = FETCH(1);         /* field offset */                          \
   1090         ILOGV("|iput%s-quick v%d,v%d,field@0x%04x",                         \
   1091             (_opname), vdst, vsrc1, ref);                                   \
   1092         obj = (Object*) GET_REGISTER(vsrc1);                                \
   1093         if (!checkForNullExportPC(obj, fp, pc))                             \
   1094             GOTO_exceptionThrown();                                         \
   1095         dvmSetField##_ftype(obj, ref, GET_REGISTER##_regsize(vdst));        \
   1096         ILOGV("+ IPUTQ %d=0x%08llx", ref,                                   \
   1097             (u8) GET_REGISTER##_regsize(vdst));                             \
   1098     }                                                                       \
   1099     FINISH(2);
   1100 
   1101 /*
   1102  * The JIT needs dvmDexGetResolvedField() to return non-null.
   1103  * Because the portable interpreter is not involved with the JIT
   1104  * and trace building, we only need the extra check here when this
   1105  * code is massaged into a stub called from an assembly interpreter.
   1106  * This is controlled by the JIT_STUB_HACK maco.
   1107  */
   1108 
   1109 #define HANDLE_SGET_X(_opcode, _opname, _ftype, _regsize)                   \
   1110     HANDLE_OPCODE(_opcode /*vAA, field@BBBB*/)                              \
   1111     {                                                                       \
   1112         StaticField* sfield;                                                \
   1113         vdst = INST_AA(inst);                                               \
   1114         ref = FETCH(1);         /* field ref */                             \
   1115         ILOGV("|sget%s v%d,sfield@0x%04x", (_opname), vdst, ref);           \
   1116         sfield = (StaticField*)dvmDexGetResolvedField(methodClassDex, ref); \
   1117         if (sfield == NULL) {                                               \
   1118             EXPORT_PC();                                                    \
   1119             sfield = dvmResolveStaticField(curMethod->clazz, ref);          \
   1120             if (sfield == NULL)                                             \
   1121                 GOTO_exceptionThrown();                                     \
   1122             if (dvmDexGetResolvedField(methodClassDex, ref) == NULL) {      \
   1123                 JIT_STUB_HACK(dvmJitEndTraceSelect(self,pc));               \
   1124             }                                                               \
   1125         }                                                                   \
   1126         SET_REGISTER##_regsize(vdst, dvmGetStaticField##_ftype(sfield));    \
   1127         ILOGV("+ SGET '%s'=0x%08llx",                                       \
   1128             sfield->field.name, (u8)GET_REGISTER##_regsize(vdst));          \
   1129     }                                                                       \
   1130     FINISH(2);
   1131 
   1132 #define HANDLE_SPUT_X(_opcode, _opname, _ftype, _regsize)                   \
   1133     HANDLE_OPCODE(_opcode /*vAA, field@BBBB*/)                              \
   1134     {                                                                       \
   1135         StaticField* sfield;                                                \
   1136         vdst = INST_AA(inst);                                               \
   1137         ref = FETCH(1);         /* field ref */                             \
   1138         ILOGV("|sput%s v%d,sfield@0x%04x", (_opname), vdst, ref);           \
   1139         sfield = (StaticField*)dvmDexGetResolvedField(methodClassDex, ref); \
   1140         if (sfield == NULL) {                                               \
   1141             EXPORT_PC();                                                    \
   1142             sfield = dvmResolveStaticField(curMethod->clazz, ref);          \
   1143             if (sfield == NULL)                                             \
   1144                 GOTO_exceptionThrown();                                     \
   1145             if (dvmDexGetResolvedField(methodClassDex, ref) == NULL) {      \
   1146                 JIT_STUB_HACK(dvmJitEndTraceSelect(self,pc));               \
   1147             }                                                               \
   1148         }                                                                   \
   1149         dvmSetStaticField##_ftype(sfield, GET_REGISTER##_regsize(vdst));    \
   1150         ILOGV("+ SPUT '%s'=0x%08llx",                                       \
   1151             sfield->field.name, (u8)GET_REGISTER##_regsize(vdst));          \
   1152     }                                                                       \
   1153     FINISH(2);
   1154 
   1155 /* File: c/OP_IGET_WIDE_VOLATILE.cpp */
   1156 HANDLE_IGET_X(OP_IGET_WIDE_VOLATILE,    "-wide-volatile", LongVolatile, _WIDE)
   1157 OP_END
   1158 
   1159 /* File: c/OP_IPUT_WIDE_VOLATILE.cpp */
   1160 HANDLE_IPUT_X(OP_IPUT_WIDE_VOLATILE,    "-wide-volatile", LongVolatile, _WIDE)
   1161 OP_END
   1162 
   1163 /* File: c/OP_SGET_WIDE_VOLATILE.cpp */
   1164 HANDLE_SGET_X(OP_SGET_WIDE_VOLATILE,    "-wide-volatile", LongVolatile, _WIDE)
   1165 OP_END
   1166 
   1167 /* File: c/OP_SPUT_WIDE_VOLATILE.cpp */
   1168 HANDLE_SPUT_X(OP_SPUT_WIDE_VOLATILE,    "-wide-volatile", LongVolatile, _WIDE)
   1169 OP_END
   1170 
   1171 /* File: c/OP_EXECUTE_INLINE_RANGE.cpp */
   1172 HANDLE_OPCODE(OP_EXECUTE_INLINE_RANGE /*{vCCCC..v(CCCC+AA-1)}, inline@BBBB*/)
   1173     {
   1174         u4 arg0, arg1, arg2, arg3;
   1175         arg0 = arg1 = arg2 = arg3 = 0;      /* placate gcc */
   1176 
   1177         EXPORT_PC();
   1178 
   1179         vsrc1 = INST_AA(inst);      /* #of args */
   1180         ref = FETCH(1);             /* inline call "ref" */
   1181         vdst = FETCH(2);            /* range base */
   1182         ILOGV("|execute-inline-range args=%d @%d {regs=v%d-v%d}",
   1183             vsrc1, ref, vdst, vdst+vsrc1-1);
   1184 
   1185         assert((vdst >> 16) == 0);  // 16-bit type -or- high 16 bits clear
   1186         assert(vsrc1 <= 4);
   1187 
   1188         switch (vsrc1) {
   1189         case 4:
   1190             arg3 = GET_REGISTER(vdst+3);
   1191             /* fall through */
   1192         case 3:
   1193             arg2 = GET_REGISTER(vdst+2);
   1194             /* fall through */
   1195         case 2:
   1196             arg1 = GET_REGISTER(vdst+1);
   1197             /* fall through */
   1198         case 1:
   1199             arg0 = GET_REGISTER(vdst+0);
   1200             /* fall through */
   1201         default:        // case 0
   1202             ;
   1203         }
   1204 
   1205         if (self->interpBreak.ctl.subMode & kSubModeDebuggerActive) {
   1206             if (!dvmPerformInlineOp4Dbg(arg0, arg1, arg2, arg3, &retval, ref))
   1207                 GOTO_exceptionThrown();
   1208         } else {
   1209             if (!dvmPerformInlineOp4Std(arg0, arg1, arg2, arg3, &retval, ref))
   1210                 GOTO_exceptionThrown();
   1211         }
   1212     }
   1213     FINISH(3);
   1214 OP_END
   1215 
   1216 /* File: c/OP_INVOKE_OBJECT_INIT_RANGE.cpp */
   1217 HANDLE_OPCODE(OP_INVOKE_OBJECT_INIT_RANGE /*{vCCCC..v(CCCC+AA-1)}, meth@BBBB*/)
   1218     {
   1219         Object* obj;
   1220 
   1221         vsrc1 = FETCH(2);               /* reg number of "this" pointer */
   1222         obj = GET_REGISTER_AS_OBJECT(vsrc1);
   1223 
   1224         if (!checkForNullExportPC(obj, fp, pc))
   1225             GOTO_exceptionThrown();
   1226 
   1227         /*
   1228          * The object should be marked "finalizable" when Object.<init>
   1229          * completes normally.  We're going to assume it does complete
   1230          * (by virtue of being nothing but a return-void) and set it now.
   1231          */
   1232         if (IS_CLASS_FLAG_SET(obj->clazz, CLASS_ISFINALIZABLE)) {
   1233             EXPORT_PC();
   1234             dvmSetFinalizable(obj);
   1235             if (dvmGetException(self))
   1236                 GOTO_exceptionThrown();
   1237         }
   1238 
   1239         if (self->interpBreak.ctl.subMode & kSubModeDebuggerActive) {
   1240             /* behave like OP_INVOKE_DIRECT_RANGE */
   1241             GOTO_invoke(invokeDirect, true);
   1242         }
   1243         FINISH(3);
   1244     }
   1245 OP_END
   1246 
   1247 /* File: c/OP_RETURN_VOID_BARRIER.cpp */
   1248 HANDLE_OPCODE(OP_RETURN_VOID_BARRIER /**/)
   1249     ILOGV("|return-void");
   1250 #ifndef NDEBUG
   1251     retval.j = 0xababababULL;   /* placate valgrind */
   1252 #endif
   1253     ANDROID_MEMBAR_STORE();
   1254     GOTO_returnFromMethod();
   1255 OP_END
   1256 
   1257 /* File: c/gotoTargets.cpp */
   1258 /*
   1259  * C footer.  This has some common code shared by the various targets.
   1260  */
   1261 
   1262 /*
   1263  * Everything from here on is a "goto target".  In the basic interpreter
   1264  * we jump into these targets and then jump directly to the handler for
   1265  * next instruction.  Here, these are subroutines that return to the caller.
   1266  */
   1267 
   1268 GOTO_TARGET(filledNewArray, bool methodCallRange, bool)
   1269     {
   1270         ClassObject* arrayClass;
   1271         ArrayObject* newArray;
   1272         u4* contents;
   1273         char typeCh;
   1274         int i;
   1275         u4 arg5;
   1276 
   1277         EXPORT_PC();
   1278 
   1279         ref = FETCH(1);             /* class ref */
   1280         vdst = FETCH(2);            /* first 4 regs -or- range base */
   1281 
   1282         if (methodCallRange) {
   1283             vsrc1 = INST_AA(inst);  /* #of elements */
   1284             arg5 = -1;              /* silence compiler warning */
   1285             ILOGV("|filled-new-array-range args=%d @0x%04x {regs=v%d-v%d}",
   1286                 vsrc1, ref, vdst, vdst+vsrc1-1);
   1287         } else {
   1288             arg5 = INST_A(inst);
   1289             vsrc1 = INST_B(inst);   /* #of elements */
   1290             ILOGV("|filled-new-array args=%d @0x%04x {regs=0x%04x %x}",
   1291                vsrc1, ref, vdst, arg5);
   1292         }
   1293 
   1294         /*
   1295          * Resolve the array class.
   1296          */
   1297         arrayClass = dvmDexGetResolvedClass(methodClassDex, ref);
   1298         if (arrayClass == NULL) {
   1299             arrayClass = dvmResolveClass(curMethod->clazz, ref, false);
   1300             if (arrayClass == NULL)
   1301                 GOTO_exceptionThrown();
   1302         }
   1303         /*
   1304         if (!dvmIsArrayClass(arrayClass)) {
   1305             dvmThrowRuntimeException(
   1306                 "filled-new-array needs array class");
   1307             GOTO_exceptionThrown();
   1308         }
   1309         */
   1310         /* verifier guarantees this is an array class */
   1311         assert(dvmIsArrayClass(arrayClass));
   1312         assert(dvmIsClassInitialized(arrayClass));
   1313 
   1314         /*
   1315          * Create an array of the specified type.
   1316          */
   1317         LOGVV("+++ filled-new-array type is '%s'", arrayClass->descriptor);
   1318         typeCh = arrayClass->descriptor[1];
   1319         if (typeCh == 'D' || typeCh == 'J') {
   1320             /* category 2 primitives not allowed */
   1321             dvmThrowRuntimeException("bad filled array req");
   1322             GOTO_exceptionThrown();
   1323         } else if (typeCh != 'L' && typeCh != '[' && typeCh != 'I') {
   1324             /* TODO: requires multiple "fill in" loops with different widths */
   1325             ALOGE("non-int primitives not implemented");
   1326             dvmThrowInternalError(
   1327                 "filled-new-array not implemented for anything but 'int'");
   1328             GOTO_exceptionThrown();
   1329         }
   1330 
   1331         newArray = dvmAllocArrayByClass(arrayClass, vsrc1, ALLOC_DONT_TRACK);
   1332         if (newArray == NULL)
   1333             GOTO_exceptionThrown();
   1334 
   1335         /*
   1336          * Fill in the elements.  It's legal for vsrc1 to be zero.
   1337          */
   1338         contents = (u4*)(void*)newArray->contents;
   1339         if (methodCallRange) {
   1340             for (i = 0; i < vsrc1; i++)
   1341                 contents[i] = GET_REGISTER(vdst+i);
   1342         } else {
   1343             assert(vsrc1 <= 5);
   1344             if (vsrc1 == 5) {
   1345                 contents[4] = GET_REGISTER(arg5);
   1346                 vsrc1--;
   1347             }
   1348             for (i = 0; i < vsrc1; i++) {
   1349                 contents[i] = GET_REGISTER(vdst & 0x0f);
   1350                 vdst >>= 4;
   1351             }
   1352         }
   1353         if (typeCh == 'L' || typeCh == '[') {
   1354             dvmWriteBarrierArray(newArray, 0, newArray->length);
   1355         }
   1356 
   1357         retval.l = (Object*)newArray;
   1358     }
   1359     FINISH(3);
   1360 GOTO_TARGET_END
   1361 
   1362 
   1363 GOTO_TARGET(invokeVirtual, bool methodCallRange, bool)
   1364     {
   1365         Method* baseMethod;
   1366         Object* thisPtr;
   1367 
   1368         EXPORT_PC();
   1369 
   1370         vsrc1 = INST_AA(inst);      /* AA (count) or BA (count + arg 5) */
   1371         ref = FETCH(1);             /* method ref */
   1372         vdst = FETCH(2);            /* 4 regs -or- first reg */
   1373 
   1374         /*
   1375          * The object against which we are executing a method is always
   1376          * in the first argument.
   1377          */
   1378         if (methodCallRange) {
   1379             assert(vsrc1 > 0);
   1380             ILOGV("|invoke-virtual-range args=%d @0x%04x {regs=v%d-v%d}",
   1381                 vsrc1, ref, vdst, vdst+vsrc1-1);
   1382             thisPtr = (Object*) GET_REGISTER(vdst);
   1383         } else {
   1384             assert((vsrc1>>4) > 0);
   1385             ILOGV("|invoke-virtual args=%d @0x%04x {regs=0x%04x %x}",
   1386                 vsrc1 >> 4, ref, vdst, vsrc1 & 0x0f);
   1387             thisPtr = (Object*) GET_REGISTER(vdst & 0x0f);
   1388         }
   1389 
   1390         if (!checkForNull(thisPtr))
   1391             GOTO_exceptionThrown();
   1392 
   1393         /*
   1394          * Resolve the method.  This is the correct method for the static
   1395          * type of the object.  We also verify access permissions here.
   1396          */
   1397         baseMethod = dvmDexGetResolvedMethod(methodClassDex, ref);
   1398         if (baseMethod == NULL) {
   1399             baseMethod = dvmResolveMethod(curMethod->clazz, ref,METHOD_VIRTUAL);
   1400             if (baseMethod == NULL) {
   1401                 ILOGV("+ unknown method or access denied");
   1402                 GOTO_exceptionThrown();
   1403             }
   1404         }
   1405 
   1406         /*
   1407          * Combine the object we found with the vtable offset in the
   1408          * method.
   1409          */
   1410         assert(baseMethod->methodIndex < thisPtr->clazz->vtableCount);
   1411         methodToCall = thisPtr->clazz->vtable[baseMethod->methodIndex];
   1412 
   1413 #if defined(WITH_JIT) && defined(MTERP_STUB)
   1414         self->methodToCall = methodToCall;
   1415         self->callsiteClass = thisPtr->clazz;
   1416 #endif
   1417 
   1418 #if 0
   1419         if (dvmIsAbstractMethod(methodToCall)) {
   1420             /*
   1421              * This can happen if you create two classes, Base and Sub, where
   1422              * Sub is a sub-class of Base.  Declare a protected abstract
   1423              * method foo() in Base, and invoke foo() from a method in Base.
   1424              * Base is an "abstract base class" and is never instantiated
   1425              * directly.  Now, Override foo() in Sub, and use Sub.  This
   1426              * Works fine unless Sub stops providing an implementation of
   1427              * the method.
   1428              */
   1429             dvmThrowAbstractMethodError("abstract method not implemented");
   1430             GOTO_exceptionThrown();
   1431         }
   1432 #else
   1433         assert(!dvmIsAbstractMethod(methodToCall) ||
   1434             methodToCall->nativeFunc != NULL);
   1435 #endif
   1436 
   1437         LOGVV("+++ base=%s.%s virtual[%d]=%s.%s",
   1438             baseMethod->clazz->descriptor, baseMethod->name,
   1439             (u4) baseMethod->methodIndex,
   1440             methodToCall->clazz->descriptor, methodToCall->name);
   1441         assert(methodToCall != NULL);
   1442 
   1443 #if 0
   1444         if (vsrc1 != methodToCall->insSize) {
   1445             ALOGW("WRONG METHOD: base=%s.%s virtual[%d]=%s.%s",
   1446                 baseMethod->clazz->descriptor, baseMethod->name,
   1447                 (u4) baseMethod->methodIndex,
   1448                 methodToCall->clazz->descriptor, methodToCall->name);
   1449             //dvmDumpClass(baseMethod->clazz);
   1450             //dvmDumpClass(methodToCall->clazz);
   1451             dvmDumpAllClasses(0);
   1452         }
   1453 #endif
   1454 
   1455         GOTO_invokeMethod(methodCallRange, methodToCall, vsrc1, vdst);
   1456     }
   1457 GOTO_TARGET_END
   1458 
   1459 GOTO_TARGET(invokeSuper, bool methodCallRange)
   1460     {
   1461         Method* baseMethod;
   1462         u2 thisReg;
   1463 
   1464         EXPORT_PC();
   1465 
   1466         vsrc1 = INST_AA(inst);      /* AA (count) or BA (count + arg 5) */
   1467         ref = FETCH(1);             /* method ref */
   1468         vdst = FETCH(2);            /* 4 regs -or- first reg */
   1469 
   1470         if (methodCallRange) {
   1471             ILOGV("|invoke-super-range args=%d @0x%04x {regs=v%d-v%d}",
   1472                 vsrc1, ref, vdst, vdst+vsrc1-1);
   1473             thisReg = vdst;
   1474         } else {
   1475             ILOGV("|invoke-super args=%d @0x%04x {regs=0x%04x %x}",
   1476                 vsrc1 >> 4, ref, vdst, vsrc1 & 0x0f);
   1477             thisReg = vdst & 0x0f;
   1478         }
   1479 
   1480         /* impossible in well-formed code, but we must check nevertheless */
   1481         if (!checkForNull((Object*) GET_REGISTER(thisReg)))
   1482             GOTO_exceptionThrown();
   1483 
   1484         /*
   1485          * Resolve the method.  This is the correct method for the static
   1486          * type of the object.  We also verify access permissions here.
   1487          * The first arg to dvmResolveMethod() is just the referring class
   1488          * (used for class loaders and such), so we don't want to pass
   1489          * the superclass into the resolution call.
   1490          */
   1491         baseMethod = dvmDexGetResolvedMethod(methodClassDex, ref);
   1492         if (baseMethod == NULL) {
   1493             baseMethod = dvmResolveMethod(curMethod->clazz, ref,METHOD_VIRTUAL);
   1494             if (baseMethod == NULL) {
   1495                 ILOGV("+ unknown method or access denied");
   1496                 GOTO_exceptionThrown();
   1497             }
   1498         }
   1499 
   1500         /*
   1501          * Combine the object we found with the vtable offset in the
   1502          * method's class.
   1503          *
   1504          * We're using the current method's class' superclass, not the
   1505          * superclass of "this".  This is because we might be executing
   1506          * in a method inherited from a superclass, and we want to run
   1507          * in that class' superclass.
   1508          */
   1509         if (baseMethod->methodIndex >= curMethod->clazz->super->vtableCount) {
   1510             /*
   1511              * Method does not exist in the superclass.  Could happen if
   1512              * superclass gets updated.
   1513              */
   1514             dvmThrowNoSuchMethodError(baseMethod->name);
   1515             GOTO_exceptionThrown();
   1516         }
   1517         methodToCall = curMethod->clazz->super->vtable[baseMethod->methodIndex];
   1518 
   1519 #if 0
   1520         if (dvmIsAbstractMethod(methodToCall)) {
   1521             dvmThrowAbstractMethodError("abstract method not implemented");
   1522             GOTO_exceptionThrown();
   1523         }
   1524 #else
   1525         assert(!dvmIsAbstractMethod(methodToCall) ||
   1526             methodToCall->nativeFunc != NULL);
   1527 #endif
   1528         LOGVV("+++ base=%s.%s super-virtual=%s.%s",
   1529             baseMethod->clazz->descriptor, baseMethod->name,
   1530             methodToCall->clazz->descriptor, methodToCall->name);
   1531         assert(methodToCall != NULL);
   1532 
   1533         GOTO_invokeMethod(methodCallRange, methodToCall, vsrc1, vdst);
   1534     }
   1535 GOTO_TARGET_END
   1536 
   1537 GOTO_TARGET(invokeInterface, bool methodCallRange)
   1538     {
   1539         Object* thisPtr;
   1540         ClassObject* thisClass;
   1541 
   1542         EXPORT_PC();
   1543 
   1544         vsrc1 = INST_AA(inst);      /* AA (count) or BA (count + arg 5) */
   1545         ref = FETCH(1);             /* method ref */
   1546         vdst = FETCH(2);            /* 4 regs -or- first reg */
   1547 
   1548         /*
   1549          * The object against which we are executing a method is always
   1550          * in the first argument.
   1551          */
   1552         if (methodCallRange) {
   1553             assert(vsrc1 > 0);
   1554             ILOGV("|invoke-interface-range args=%d @0x%04x {regs=v%d-v%d}",
   1555                 vsrc1, ref, vdst, vdst+vsrc1-1);
   1556             thisPtr = (Object*) GET_REGISTER(vdst);
   1557         } else {
   1558             assert((vsrc1>>4) > 0);
   1559             ILOGV("|invoke-interface args=%d @0x%04x {regs=0x%04x %x}",
   1560                 vsrc1 >> 4, ref, vdst, vsrc1 & 0x0f);
   1561             thisPtr = (Object*) GET_REGISTER(vdst & 0x0f);
   1562         }
   1563 
   1564         if (!checkForNull(thisPtr))
   1565             GOTO_exceptionThrown();
   1566 
   1567         thisClass = thisPtr->clazz;
   1568 
   1569         /*
   1570          * Given a class and a method index, find the Method* with the
   1571          * actual code we want to execute.
   1572          */
   1573         methodToCall = dvmFindInterfaceMethodInCache(thisClass, ref, curMethod,
   1574                         methodClassDex);
   1575 #if defined(WITH_JIT) && defined(MTERP_STUB)
   1576         self->callsiteClass = thisClass;
   1577         self->methodToCall = methodToCall;
   1578 #endif
   1579         if (methodToCall == NULL) {
   1580             assert(dvmCheckException(self));
   1581             GOTO_exceptionThrown();
   1582         }
   1583 
   1584         GOTO_invokeMethod(methodCallRange, methodToCall, vsrc1, vdst);
   1585     }
   1586 GOTO_TARGET_END
   1587 
   1588 GOTO_TARGET(invokeDirect, bool methodCallRange)
   1589     {
   1590         u2 thisReg;
   1591 
   1592         EXPORT_PC();
   1593 
   1594         vsrc1 = INST_AA(inst);      /* AA (count) or BA (count + arg 5) */
   1595         ref = FETCH(1);             /* method ref */
   1596         vdst = FETCH(2);            /* 4 regs -or- first reg */
   1597 
   1598         if (methodCallRange) {
   1599             ILOGV("|invoke-direct-range args=%d @0x%04x {regs=v%d-v%d}",
   1600                 vsrc1, ref, vdst, vdst+vsrc1-1);
   1601             thisReg = vdst;
   1602         } else {
   1603             ILOGV("|invoke-direct args=%d @0x%04x {regs=0x%04x %x}",
   1604                 vsrc1 >> 4, ref, vdst, vsrc1 & 0x0f);
   1605             thisReg = vdst & 0x0f;
   1606         }
   1607 
   1608         if (!checkForNull((Object*) GET_REGISTER(thisReg)))
   1609             GOTO_exceptionThrown();
   1610 
   1611         methodToCall = dvmDexGetResolvedMethod(methodClassDex, ref);
   1612         if (methodToCall == NULL) {
   1613             methodToCall = dvmResolveMethod(curMethod->clazz, ref,
   1614                             METHOD_DIRECT);
   1615             if (methodToCall == NULL) {
   1616                 ILOGV("+ unknown direct method");     // should be impossible
   1617                 GOTO_exceptionThrown();
   1618             }
   1619         }
   1620         GOTO_invokeMethod(methodCallRange, methodToCall, vsrc1, vdst);
   1621     }
   1622 GOTO_TARGET_END
   1623 
   1624 GOTO_TARGET(invokeStatic, bool methodCallRange)
   1625     EXPORT_PC();
   1626 
   1627     vsrc1 = INST_AA(inst);      /* AA (count) or BA (count + arg 5) */
   1628     ref = FETCH(1);             /* method ref */
   1629     vdst = FETCH(2);            /* 4 regs -or- first reg */
   1630 
   1631     if (methodCallRange)
   1632         ILOGV("|invoke-static-range args=%d @0x%04x {regs=v%d-v%d}",
   1633             vsrc1, ref, vdst, vdst+vsrc1-1);
   1634     else
   1635         ILOGV("|invoke-static args=%d @0x%04x {regs=0x%04x %x}",
   1636             vsrc1 >> 4, ref, vdst, vsrc1 & 0x0f);
   1637 
   1638     methodToCall = dvmDexGetResolvedMethod(methodClassDex, ref);
   1639     if (methodToCall == NULL) {
   1640         methodToCall = dvmResolveMethod(curMethod->clazz, ref, METHOD_STATIC);
   1641         if (methodToCall == NULL) {
   1642             ILOGV("+ unknown method");
   1643             GOTO_exceptionThrown();
   1644         }
   1645 
   1646 #if defined(WITH_JIT) && defined(MTERP_STUB)
   1647         /*
   1648          * The JIT needs dvmDexGetResolvedMethod() to return non-null.
   1649          * Include the check if this code is being used as a stub
   1650          * called from the assembly interpreter.
   1651          */
   1652         if ((self->interpBreak.ctl.subMode & kSubModeJitTraceBuild) &&
   1653             (dvmDexGetResolvedMethod(methodClassDex, ref) == NULL)) {
   1654             /* Class initialization is still ongoing */
   1655             dvmJitEndTraceSelect(self,pc);
   1656         }
   1657 #endif
   1658     }
   1659     GOTO_invokeMethod(methodCallRange, methodToCall, vsrc1, vdst);
   1660 GOTO_TARGET_END
   1661 
   1662 GOTO_TARGET(invokeVirtualQuick, bool methodCallRange)
   1663     {
   1664         Object* thisPtr;
   1665 
   1666         EXPORT_PC();
   1667 
   1668         vsrc1 = INST_AA(inst);      /* AA (count) or BA (count + arg 5) */
   1669         ref = FETCH(1);             /* vtable index */
   1670         vdst = FETCH(2);            /* 4 regs -or- first reg */
   1671 
   1672         /*
   1673          * The object against which we are executing a method is always
   1674          * in the first argument.
   1675          */
   1676         if (methodCallRange) {
   1677             assert(vsrc1 > 0);
   1678             ILOGV("|invoke-virtual-quick-range args=%d @0x%04x {regs=v%d-v%d}",
   1679                 vsrc1, ref, vdst, vdst+vsrc1-1);
   1680             thisPtr = (Object*) GET_REGISTER(vdst);
   1681         } else {
   1682             assert((vsrc1>>4) > 0);
   1683             ILOGV("|invoke-virtual-quick args=%d @0x%04x {regs=0x%04x %x}",
   1684                 vsrc1 >> 4, ref, vdst, vsrc1 & 0x0f);
   1685             thisPtr = (Object*) GET_REGISTER(vdst & 0x0f);
   1686         }
   1687 
   1688         if (!checkForNull(thisPtr))
   1689             GOTO_exceptionThrown();
   1690 
   1691 
   1692         /*
   1693          * Combine the object we found with the vtable offset in the
   1694          * method.
   1695          */
   1696         assert(ref < (unsigned int) thisPtr->clazz->vtableCount);
   1697         methodToCall = thisPtr->clazz->vtable[ref];
   1698 #if defined(WITH_JIT) && defined(MTERP_STUB)
   1699         self->callsiteClass = thisPtr->clazz;
   1700         self->methodToCall = methodToCall;
   1701 #endif
   1702 
   1703 #if 0
   1704         if (dvmIsAbstractMethod(methodToCall)) {
   1705             dvmThrowAbstractMethodError("abstract method not implemented");
   1706             GOTO_exceptionThrown();
   1707         }
   1708 #else
   1709         assert(!dvmIsAbstractMethod(methodToCall) ||
   1710             methodToCall->nativeFunc != NULL);
   1711 #endif
   1712 
   1713         LOGVV("+++ virtual[%d]=%s.%s",
   1714             ref, methodToCall->clazz->descriptor, methodToCall->name);
   1715         assert(methodToCall != NULL);
   1716 
   1717         GOTO_invokeMethod(methodCallRange, methodToCall, vsrc1, vdst);
   1718     }
   1719 GOTO_TARGET_END
   1720 
   1721 GOTO_TARGET(invokeSuperQuick, bool methodCallRange)
   1722     {
   1723         u2 thisReg;
   1724 
   1725         EXPORT_PC();
   1726 
   1727         vsrc1 = INST_AA(inst);      /* AA (count) or BA (count + arg 5) */
   1728         ref = FETCH(1);             /* vtable index */
   1729         vdst = FETCH(2);            /* 4 regs -or- first reg */
   1730 
   1731         if (methodCallRange) {
   1732             ILOGV("|invoke-super-quick-range args=%d @0x%04x {regs=v%d-v%d}",
   1733                 vsrc1, ref, vdst, vdst+vsrc1-1);
   1734             thisReg = vdst;
   1735         } else {
   1736             ILOGV("|invoke-super-quick args=%d @0x%04x {regs=0x%04x %x}",
   1737                 vsrc1 >> 4, ref, vdst, vsrc1 & 0x0f);
   1738             thisReg = vdst & 0x0f;
   1739         }
   1740         /* impossible in well-formed code, but we must check nevertheless */
   1741         if (!checkForNull((Object*) GET_REGISTER(thisReg)))
   1742             GOTO_exceptionThrown();
   1743 
   1744 #if 0   /* impossible in optimized + verified code */
   1745         if (ref >= curMethod->clazz->super->vtableCount) {
   1746             dvmThrowNoSuchMethodError(NULL);
   1747             GOTO_exceptionThrown();
   1748         }
   1749 #else
   1750         assert(ref < (unsigned int) curMethod->clazz->super->vtableCount);
   1751 #endif
   1752 
   1753         /*
   1754          * Combine the object we found with the vtable offset in the
   1755          * method's class.
   1756          *
   1757          * We're using the current method's class' superclass, not the
   1758          * superclass of "this".  This is because we might be executing
   1759          * in a method inherited from a superclass, and we want to run
   1760          * in the method's class' superclass.
   1761          */
   1762         methodToCall = curMethod->clazz->super->vtable[ref];
   1763 
   1764 #if 0
   1765         if (dvmIsAbstractMethod(methodToCall)) {
   1766             dvmThrowAbstractMethodError("abstract method not implemented");
   1767             GOTO_exceptionThrown();
   1768         }
   1769 #else
   1770         assert(!dvmIsAbstractMethod(methodToCall) ||
   1771             methodToCall->nativeFunc != NULL);
   1772 #endif
   1773         LOGVV("+++ super-virtual[%d]=%s.%s",
   1774             ref, methodToCall->clazz->descriptor, methodToCall->name);
   1775         assert(methodToCall != NULL);
   1776         GOTO_invokeMethod(methodCallRange, methodToCall, vsrc1, vdst);
   1777     }
   1778 GOTO_TARGET_END
   1779 
   1780 
   1781     /*
   1782      * General handling for return-void, return, and return-wide.  Put the
   1783      * return value in "retval" before jumping here.
   1784      */
   1785 GOTO_TARGET(returnFromMethod)
   1786     {
   1787         StackSaveArea* saveArea;
   1788 
   1789         /*
   1790          * We must do this BEFORE we pop the previous stack frame off, so
   1791          * that the GC can see the return value (if any) in the local vars.
   1792          *
   1793          * Since this is now an interpreter switch point, we must do it before
   1794          * we do anything at all.
   1795          */
   1796         PERIODIC_CHECKS(0);
   1797 
   1798         ILOGV("> retval=0x%llx (leaving %s.%s %s)",
   1799             retval.j, curMethod->clazz->descriptor, curMethod->name,
   1800             curMethod->shorty);
   1801         //DUMP_REGS(curMethod, fp);
   1802 
   1803         saveArea = SAVEAREA_FROM_FP(fp);
   1804 
   1805 #ifdef EASY_GDB
   1806         debugSaveArea = saveArea;
   1807 #endif
   1808 
   1809         /* back up to previous frame and see if we hit a break */
   1810         fp = (u4*)saveArea->prevFrame;
   1811         assert(fp != NULL);
   1812 
   1813         /* Handle any special subMode requirements */
   1814         if (self->interpBreak.ctl.subMode != 0) {
   1815             PC_FP_TO_SELF();
   1816             dvmReportReturn(self);
   1817         }
   1818 
   1819         if (dvmIsBreakFrame(fp)) {
   1820             /* bail without popping the method frame from stack */
   1821             LOGVV("+++ returned into break frame");
   1822             GOTO_bail();
   1823         }
   1824 
   1825         /* update thread FP, and reset local variables */
   1826         self->interpSave.curFrame = fp;
   1827         curMethod = SAVEAREA_FROM_FP(fp)->method;
   1828         self->interpSave.method = curMethod;
   1829         //methodClass = curMethod->clazz;
   1830         methodClassDex = curMethod->clazz->pDvmDex;
   1831         pc = saveArea->savedPc;
   1832         ILOGD("> (return to %s.%s %s)", curMethod->clazz->descriptor,
   1833             curMethod->name, curMethod->shorty);
   1834 
   1835         /* use FINISH on the caller's invoke instruction */
   1836         //u2 invokeInstr = INST_INST(FETCH(0));
   1837         if (true /*invokeInstr >= OP_INVOKE_VIRTUAL &&
   1838             invokeInstr <= OP_INVOKE_INTERFACE*/)
   1839         {
   1840             FINISH(3);
   1841         } else {
   1842             //ALOGE("Unknown invoke instr %02x at %d",
   1843             //    invokeInstr, (int) (pc - curMethod->insns));
   1844             assert(false);
   1845         }
   1846     }
   1847 GOTO_TARGET_END
   1848 
   1849 
   1850     /*
   1851      * Jump here when the code throws an exception.
   1852      *
   1853      * By the time we get here, the Throwable has been created and the stack
   1854      * trace has been saved off.
   1855      */
   1856 GOTO_TARGET(exceptionThrown)
   1857     {
   1858         Object* exception;
   1859         int catchRelPc;
   1860 
   1861         PERIODIC_CHECKS(0);
   1862 
   1863         /*
   1864          * We save off the exception and clear the exception status.  While
   1865          * processing the exception we might need to load some Throwable
   1866          * classes, and we don't want class loader exceptions to get
   1867          * confused with this one.
   1868          */
   1869         assert(dvmCheckException(self));
   1870         exception = dvmGetException(self);
   1871         dvmAddTrackedAlloc(exception, self);
   1872         dvmClearException(self);
   1873 
   1874         ALOGV("Handling exception %s at %s:%d",
   1875             exception->clazz->descriptor, curMethod->name,
   1876             dvmLineNumFromPC(curMethod, pc - curMethod->insns));
   1877 
   1878         /*
   1879          * Report the exception throw to any "subMode" watchers.
   1880          *
   1881          * TODO: if the exception was thrown by interpreted code, control
   1882          * fell through native, and then back to us, we will report the
   1883          * exception at the point of the throw and again here.  We can avoid
   1884          * this by not reporting exceptions when we jump here directly from
   1885          * the native call code above, but then we won't report exceptions
   1886          * that were thrown *from* the JNI code (as opposed to *through* it).
   1887          *
   1888          * The correct solution is probably to ignore from-native exceptions
   1889          * here, and have the JNI exception code do the reporting to the
   1890          * debugger.
   1891          */
   1892         if (self->interpBreak.ctl.subMode != 0) {
   1893             PC_FP_TO_SELF();
   1894             dvmReportExceptionThrow(self, exception);
   1895         }
   1896 
   1897         /*
   1898          * We need to unroll to the catch block or the nearest "break"
   1899          * frame.
   1900          *
   1901          * A break frame could indicate that we have reached an intermediate
   1902          * native call, or have gone off the top of the stack and the thread
   1903          * needs to exit.  Either way, we return from here, leaving the
   1904          * exception raised.
   1905          *
   1906          * If we do find a catch block, we want to transfer execution to
   1907          * that point.
   1908          *
   1909          * Note this can cause an exception while resolving classes in
   1910          * the "catch" blocks.
   1911          */
   1912         catchRelPc = dvmFindCatchBlock(self, pc - curMethod->insns,
   1913                     exception, false, (void**)(void*)&fp);
   1914 
   1915         /*
   1916          * Restore the stack bounds after an overflow.  This isn't going to
   1917          * be correct in all circumstances, e.g. if JNI code devours the
   1918          * exception this won't happen until some other exception gets
   1919          * thrown.  If the code keeps pushing the stack bounds we'll end
   1920          * up aborting the VM.
   1921          *
   1922          * Note we want to do this *after* the call to dvmFindCatchBlock,
   1923          * because that may need extra stack space to resolve exception
   1924          * classes (e.g. through a class loader).
   1925          *
   1926          * It's possible for the stack overflow handling to cause an
   1927          * exception (specifically, class resolution in a "catch" block
   1928          * during the call above), so we could see the thread's overflow
   1929          * flag raised but actually be running in a "nested" interpreter
   1930          * frame.  We don't allow doubled-up StackOverflowErrors, so
   1931          * we can check for this by just looking at the exception type
   1932          * in the cleanup function.  Also, we won't unroll past the SOE
   1933          * point because the more-recent exception will hit a break frame
   1934          * as it unrolls to here.
   1935          */
   1936         if (self->stackOverflowed)
   1937             dvmCleanupStackOverflow(self, exception);
   1938 
   1939         if (catchRelPc < 0) {
   1940             /* falling through to JNI code or off the bottom of the stack */
   1941 #if DVM_SHOW_EXCEPTION >= 2
   1942             ALOGD("Exception %s from %s:%d not caught locally",
   1943                 exception->clazz->descriptor, dvmGetMethodSourceFile(curMethod),
   1944                 dvmLineNumFromPC(curMethod, pc - curMethod->insns));
   1945 #endif
   1946             dvmSetException(self, exception);
   1947             dvmReleaseTrackedAlloc(exception, self);
   1948             GOTO_bail();
   1949         }
   1950 
   1951 #if DVM_SHOW_EXCEPTION >= 3
   1952         {
   1953             const Method* catchMethod = SAVEAREA_FROM_FP(fp)->method;
   1954             ALOGD("Exception %s thrown from %s:%d to %s:%d",
   1955                 exception->clazz->descriptor, dvmGetMethodSourceFile(curMethod),
   1956                 dvmLineNumFromPC(curMethod, pc - curMethod->insns),
   1957                 dvmGetMethodSourceFile(catchMethod),
   1958                 dvmLineNumFromPC(catchMethod, catchRelPc));
   1959         }
   1960 #endif
   1961 
   1962         /*
   1963          * Adjust local variables to match self->interpSave.curFrame and the
   1964          * updated PC.
   1965          */
   1966         //fp = (u4*) self->interpSave.curFrame;
   1967         curMethod = SAVEAREA_FROM_FP(fp)->method;
   1968         self->interpSave.method = curMethod;
   1969         //methodClass = curMethod->clazz;
   1970         methodClassDex = curMethod->clazz->pDvmDex;
   1971         pc = curMethod->insns + catchRelPc;
   1972         ILOGV("> pc <-- %s.%s %s", curMethod->clazz->descriptor,
   1973             curMethod->name, curMethod->shorty);
   1974         DUMP_REGS(curMethod, fp, false);            // show all regs
   1975 
   1976         /*
   1977          * Restore the exception if the handler wants it.
   1978          *
   1979          * The Dalvik spec mandates that, if an exception handler wants to
   1980          * do something with the exception, the first instruction executed
   1981          * must be "move-exception".  We can pass the exception along
   1982          * through the thread struct, and let the move-exception instruction
   1983          * clear it for us.
   1984          *
   1985          * If the handler doesn't call move-exception, we don't want to
   1986          * finish here with an exception still pending.
   1987          */
   1988         if (INST_INST(FETCH(0)) == OP_MOVE_EXCEPTION)
   1989             dvmSetException(self, exception);
   1990 
   1991         dvmReleaseTrackedAlloc(exception, self);
   1992         FINISH(0);
   1993     }
   1994 GOTO_TARGET_END
   1995 
   1996 
   1997 
   1998     /*
   1999      * General handling for invoke-{virtual,super,direct,static,interface},
   2000      * including "quick" variants.
   2001      *
   2002      * Set "methodToCall" to the Method we're calling, and "methodCallRange"
   2003      * depending on whether this is a "/range" instruction.
   2004      *
   2005      * For a range call:
   2006      *  "vsrc1" holds the argument count (8 bits)
   2007      *  "vdst" holds the first argument in the range
   2008      * For a non-range call:
   2009      *  "vsrc1" holds the argument count (4 bits) and the 5th argument index
   2010      *  "vdst" holds four 4-bit register indices
   2011      *
   2012      * The caller must EXPORT_PC before jumping here, because any method
   2013      * call can throw a stack overflow exception.
   2014      */
   2015 GOTO_TARGET(invokeMethod, bool methodCallRange, const Method* _methodToCall,
   2016     u2 count, u2 regs)
   2017     {
   2018         STUB_HACK(vsrc1 = count; vdst = regs; methodToCall = _methodToCall;);
   2019 
   2020         //printf("range=%d call=%p count=%d regs=0x%04x\n",
   2021         //    methodCallRange, methodToCall, count, regs);
   2022         //printf(" --> %s.%s %s\n", methodToCall->clazz->descriptor,
   2023         //    methodToCall->name, methodToCall->shorty);
   2024 
   2025         u4* outs;
   2026         int i;
   2027 
   2028         /*
   2029          * Copy args.  This may corrupt vsrc1/vdst.
   2030          */
   2031         if (methodCallRange) {
   2032             // could use memcpy or a "Duff's device"; most functions have
   2033             // so few args it won't matter much
   2034             assert(vsrc1 <= curMethod->outsSize);
   2035             assert(vsrc1 == methodToCall->insSize);
   2036             outs = OUTS_FROM_FP(fp, vsrc1);
   2037             for (i = 0; i < vsrc1; i++)
   2038                 outs[i] = GET_REGISTER(vdst+i);
   2039         } else {
   2040             u4 count = vsrc1 >> 4;
   2041 
   2042             assert(count <= curMethod->outsSize);
   2043             assert(count == methodToCall->insSize);
   2044             assert(count <= 5);
   2045 
   2046             outs = OUTS_FROM_FP(fp, count);
   2047 #if 0
   2048             if (count == 5) {
   2049                 outs[4] = GET_REGISTER(vsrc1 & 0x0f);
   2050                 count--;
   2051             }
   2052             for (i = 0; i < (int) count; i++) {
   2053                 outs[i] = GET_REGISTER(vdst & 0x0f);
   2054                 vdst >>= 4;
   2055             }
   2056 #else
   2057             // This version executes fewer instructions but is larger
   2058             // overall.  Seems to be a teensy bit faster.
   2059             assert((vdst >> 16) == 0);  // 16 bits -or- high 16 bits clear
   2060             switch (count) {
   2061             case 5:
   2062                 outs[4] = GET_REGISTER(vsrc1 & 0x0f);
   2063             case 4:
   2064                 outs[3] = GET_REGISTER(vdst >> 12);
   2065             case 3:
   2066                 outs[2] = GET_REGISTER((vdst & 0x0f00) >> 8);
   2067             case 2:
   2068                 outs[1] = GET_REGISTER((vdst & 0x00f0) >> 4);
   2069             case 1:
   2070                 outs[0] = GET_REGISTER(vdst & 0x0f);
   2071             default:
   2072                 ;
   2073             }
   2074 #endif
   2075         }
   2076     }
   2077 
   2078     /*
   2079      * (This was originally a "goto" target; I've kept it separate from the
   2080      * stuff above in case we want to refactor things again.)
   2081      *
   2082      * At this point, we have the arguments stored in the "outs" area of
   2083      * the current method's stack frame, and the method to call in
   2084      * "methodToCall".  Push a new stack frame.
   2085      */
   2086     {
   2087         StackSaveArea* newSaveArea;
   2088         u4* newFp;
   2089 
   2090         ILOGV("> %s%s.%s %s",
   2091             dvmIsNativeMethod(methodToCall) ? "(NATIVE) " : "",
   2092             methodToCall->clazz->descriptor, methodToCall->name,
   2093             methodToCall->shorty);
   2094 
   2095         newFp = (u4*) SAVEAREA_FROM_FP(fp) - methodToCall->registersSize;
   2096         newSaveArea = SAVEAREA_FROM_FP(newFp);
   2097 
   2098         /* verify that we have enough space */
   2099         if (true) {
   2100             u1* bottom;
   2101             bottom = (u1*) newSaveArea - methodToCall->outsSize * sizeof(u4);
   2102             if (bottom < self->interpStackEnd) {
   2103                 /* stack overflow */
   2104                 ALOGV("Stack overflow on method call (start=%p end=%p newBot=%p(%d) size=%d '%s')",
   2105                     self->interpStackStart, self->interpStackEnd, bottom,
   2106                     (u1*) fp - bottom, self->interpStackSize,
   2107                     methodToCall->name);
   2108                 dvmHandleStackOverflow(self, methodToCall);
   2109                 assert(dvmCheckException(self));
   2110                 GOTO_exceptionThrown();
   2111             }
   2112             //ALOGD("+++ fp=%p newFp=%p newSave=%p bottom=%p",
   2113             //    fp, newFp, newSaveArea, bottom);
   2114         }
   2115 
   2116 #ifdef LOG_INSTR
   2117         if (methodToCall->registersSize > methodToCall->insSize) {
   2118             /*
   2119              * This makes valgrind quiet when we print registers that
   2120              * haven't been initialized.  Turn it off when the debug
   2121              * messages are disabled -- we want valgrind to report any
   2122              * used-before-initialized issues.
   2123              */
   2124             memset(newFp, 0xcc,
   2125                 (methodToCall->registersSize - methodToCall->insSize) * 4);
   2126         }
   2127 #endif
   2128 
   2129 #ifdef EASY_GDB
   2130         newSaveArea->prevSave = SAVEAREA_FROM_FP(fp);
   2131 #endif
   2132         newSaveArea->prevFrame = fp;
   2133         newSaveArea->savedPc = pc;
   2134 #if defined(WITH_JIT) && defined(MTERP_STUB)
   2135         newSaveArea->returnAddr = 0;
   2136 #endif
   2137         newSaveArea->method = methodToCall;
   2138 
   2139         if (self->interpBreak.ctl.subMode != 0) {
   2140             /*
   2141              * We mark ENTER here for both native and non-native
   2142              * calls.  For native calls, we'll mark EXIT on return.
   2143              * For non-native calls, EXIT is marked in the RETURN op.
   2144              */
   2145             PC_TO_SELF();
   2146             dvmReportInvoke(self, methodToCall);
   2147         }
   2148 
   2149         if (!dvmIsNativeMethod(methodToCall)) {
   2150             /*
   2151              * "Call" interpreted code.  Reposition the PC, update the
   2152              * frame pointer and other local state, and continue.
   2153              */
   2154             curMethod = methodToCall;
   2155             self->interpSave.method = curMethod;
   2156             methodClassDex = curMethod->clazz->pDvmDex;
   2157             pc = methodToCall->insns;
   2158             fp = newFp;
   2159             self->interpSave.curFrame = fp;
   2160 #ifdef EASY_GDB
   2161             debugSaveArea = SAVEAREA_FROM_FP(newFp);
   2162 #endif
   2163             self->debugIsMethodEntry = true;        // profiling, debugging
   2164             ILOGD("> pc <-- %s.%s %s", curMethod->clazz->descriptor,
   2165                 curMethod->name, curMethod->shorty);
   2166             DUMP_REGS(curMethod, fp, true);         // show input args
   2167             FINISH(0);                              // jump to method start
   2168         } else {
   2169             /* set this up for JNI locals, even if not a JNI native */
   2170             newSaveArea->xtra.localRefCookie = self->jniLocalRefTable.segmentState.all;
   2171 
   2172             self->interpSave.curFrame = newFp;
   2173 
   2174             DUMP_REGS(methodToCall, newFp, true);   // show input args
   2175 
   2176             if (self->interpBreak.ctl.subMode != 0) {
   2177                 dvmReportPreNativeInvoke(methodToCall, self, fp);
   2178             }
   2179 
   2180             ILOGD("> native <-- %s.%s %s", methodToCall->clazz->descriptor,
   2181                   methodToCall->name, methodToCall->shorty);
   2182 
   2183             /*
   2184              * Jump through native call bridge.  Because we leave no
   2185              * space for locals on native calls, "newFp" points directly
   2186              * to the method arguments.
   2187              */
   2188             (*methodToCall->nativeFunc)(newFp, &retval, methodToCall, self);
   2189 
   2190             if (self->interpBreak.ctl.subMode != 0) {
   2191                 dvmReportPostNativeInvoke(methodToCall, self, fp);
   2192             }
   2193 
   2194             /* pop frame off */
   2195             dvmPopJniLocals(self, newSaveArea);
   2196             self->interpSave.curFrame = fp;
   2197 
   2198             /*
   2199              * If the native code threw an exception, or interpreted code
   2200              * invoked by the native call threw one and nobody has cleared
   2201              * it, jump to our local exception handling.
   2202              */
   2203             if (dvmCheckException(self)) {
   2204                 ALOGV("Exception thrown by/below native code");
   2205                 GOTO_exceptionThrown();
   2206             }
   2207 
   2208             ILOGD("> retval=0x%llx (leaving native)", retval.j);
   2209             ILOGD("> (return from native %s.%s to %s.%s %s)",
   2210                 methodToCall->clazz->descriptor, methodToCall->name,
   2211                 curMethod->clazz->descriptor, curMethod->name,
   2212                 curMethod->shorty);
   2213 
   2214             //u2 invokeInstr = INST_INST(FETCH(0));
   2215             if (true /*invokeInstr >= OP_INVOKE_VIRTUAL &&
   2216                 invokeInstr <= OP_INVOKE_INTERFACE*/)
   2217             {
   2218                 FINISH(3);
   2219             } else {
   2220                 //ALOGE("Unknown invoke instr %02x at %d",
   2221                 //    invokeInstr, (int) (pc - curMethod->insns));
   2222                 assert(false);
   2223             }
   2224         }
   2225     }
   2226     assert(false);      // should not get here
   2227 GOTO_TARGET_END
   2228 
   2229 /* File: cstubs/enddefs.cpp */
   2230 
   2231 /* undefine "magic" name remapping */
   2232 #undef retval
   2233 #undef pc
   2234 #undef fp
   2235 #undef curMethod
   2236 #undef methodClassDex
   2237 #undef self
   2238 #undef debugTrackedRefStart
   2239 
   2240