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Diffstat (limited to 'vm/mterp/out/InterpC-x86-atom.c')
| -rw-r--r-- | vm/mterp/out/InterpC-x86-atom.c | 2326 |
1 files changed, 2326 insertions, 0 deletions
diff --git a/vm/mterp/out/InterpC-x86-atom.c b/vm/mterp/out/InterpC-x86-atom.c new file mode 100644 index 0000000..6d088f7 --- /dev/null +++ b/vm/mterp/out/InterpC-x86-atom.c @@ -0,0 +1,2326 @@ +/* + * This file was generated automatically by gen-mterp.py for 'x86-atom'. + * + * --> DO NOT EDIT <-- + */ + +/* File: c/header.c */ +/* + * Copyright (C) 2008 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/* common includes */ +#include "Dalvik.h" +#include "interp/InterpDefs.h" +#include "mterp/Mterp.h" +#include <math.h> // needed for fmod, fmodf +#include "mterp/common/FindInterface.h" + +/* + * Configuration defines. These affect the C implementations, i.e. the + * portable interpreter(s) and C stubs. + * + * Some defines are controlled by the Makefile, e.g.: + * WITH_INSTR_CHECKS + * WITH_TRACKREF_CHECKS + * EASY_GDB + * NDEBUG + * + * If THREADED_INTERP is not defined, we use a classic "while true / switch" + * interpreter. If it is defined, then the tail end of each instruction + * handler fetches the next instruction and jumps directly to the handler. + * This increases the size of the "Std" interpreter by about 10%, but + * provides a speedup of about the same magnitude. + * + * There's a "hybrid" approach that uses a goto table instead of a switch + * statement, avoiding the "is the opcode in range" tests required for switch. + * The performance is close to the threaded version, and without the 10% + * size increase, but the benchmark results are off enough that it's not + * worth adding as a third option. + */ +#define THREADED_INTERP /* threaded vs. while-loop interpreter */ + +#ifdef WITH_INSTR_CHECKS /* instruction-level paranoia (slow!) */ +# define CHECK_BRANCH_OFFSETS +# define CHECK_REGISTER_INDICES +#endif + +/* + * ARM EABI requires 64-bit alignment for access to 64-bit data types. We + * can't just use pointers to copy 64-bit values out of our interpreted + * register set, because gcc will generate ldrd/strd. + * + * The __UNION version copies data in and out of a union. The __MEMCPY + * version uses a memcpy() call to do the transfer; gcc is smart enough to + * not actually call memcpy(). The __UNION version is very bad on ARM; + * it only uses one more instruction than __MEMCPY, but for some reason + * gcc thinks it needs separate storage for every instance of the union. + * On top of that, it feels the need to zero them out at the start of the + * method. Net result is we zero out ~700 bytes of stack space at the top + * of the interpreter using ARM STM instructions. + */ +#if defined(__ARM_EABI__) +//# define NO_UNALIGN_64__UNION +# define NO_UNALIGN_64__MEMCPY +#endif + +//#define LOG_INSTR /* verbose debugging */ +/* set and adjust ANDROID_LOG_TAGS='*:i jdwp:i dalvikvm:i dalvikvmi:i' */ + +/* + * Keep a tally of accesses to fields. Currently only works if full DEX + * optimization is disabled. + */ +#ifdef PROFILE_FIELD_ACCESS +# define UPDATE_FIELD_GET(_field) { (_field)->gets++; } +# define UPDATE_FIELD_PUT(_field) { (_field)->puts++; } +#else +# define UPDATE_FIELD_GET(_field) ((void)0) +# define UPDATE_FIELD_PUT(_field) ((void)0) +#endif + +/* + * Export another copy of the PC on every instruction; this is largely + * redundant with EXPORT_PC and the debugger code. This value can be + * compared against what we have stored on the stack with EXPORT_PC to + * help ensure that we aren't missing any export calls. + */ +#if WITH_EXTRA_GC_CHECKS > 1 +# define EXPORT_EXTRA_PC() (self->currentPc2 = pc) +#else +# define EXPORT_EXTRA_PC() +#endif + +/* + * Adjust the program counter. "_offset" is a signed int, in 16-bit units. + * + * Assumes the existence of "const u2* pc" and "const u2* curMethod->insns". + * + * We don't advance the program counter until we finish an instruction or + * branch, because we do want to have to unroll the PC if there's an + * exception. + */ +#ifdef CHECK_BRANCH_OFFSETS +# define ADJUST_PC(_offset) do { \ + int myoff = _offset; /* deref only once */ \ + if (pc + myoff < curMethod->insns || \ + pc + myoff >= curMethod->insns + dvmGetMethodInsnsSize(curMethod)) \ + { \ + char* desc; \ + desc = dexProtoCopyMethodDescriptor(&curMethod->prototype); \ + LOGE("Invalid branch %d at 0x%04x in %s.%s %s\n", \ + myoff, (int) (pc - curMethod->insns), \ + curMethod->clazz->descriptor, curMethod->name, desc); \ + free(desc); \ + dvmAbort(); \ + } \ + pc += myoff; \ + EXPORT_EXTRA_PC(); \ + } while (false) +#else +# define ADJUST_PC(_offset) do { \ + pc += _offset; \ + EXPORT_EXTRA_PC(); \ + } while (false) +#endif + +/* + * If enabled, log instructions as we execute them. + */ +#ifdef LOG_INSTR +# define ILOGD(...) ILOG(LOG_DEBUG, __VA_ARGS__) +# define ILOGV(...) ILOG(LOG_VERBOSE, __VA_ARGS__) +# define ILOG(_level, ...) do { \ + char debugStrBuf[128]; \ + snprintf(debugStrBuf, sizeof(debugStrBuf), __VA_ARGS__); \ + if (curMethod != NULL) \ + LOG(_level, LOG_TAG"i", "%-2d|%04x%s\n", \ + self->threadId, (int)(pc - curMethod->insns), debugStrBuf); \ + else \ + LOG(_level, LOG_TAG"i", "%-2d|####%s\n", \ + self->threadId, debugStrBuf); \ + } while(false) +void dvmDumpRegs(const Method* method, const u4* framePtr, bool inOnly); +# define DUMP_REGS(_meth, _frame, _inOnly) dvmDumpRegs(_meth, _frame, _inOnly) +static const char kSpacing[] = " "; +#else +# define ILOGD(...) ((void)0) +# define ILOGV(...) ((void)0) +# define DUMP_REGS(_meth, _frame, _inOnly) ((void)0) +#endif + +/* get a long from an array of u4 */ +static inline s8 getLongFromArray(const u4* ptr, int idx) +{ +#if defined(NO_UNALIGN_64__UNION) + union { s8 ll; u4 parts[2]; } conv; + + ptr += idx; + conv.parts[0] = ptr[0]; + conv.parts[1] = ptr[1]; + return conv.ll; +#elif defined(NO_UNALIGN_64__MEMCPY) + s8 val; + memcpy(&val, &ptr[idx], 8); + return val; +#else + return *((s8*) &ptr[idx]); +#endif +} + +/* store a long into an array of u4 */ +static inline void putLongToArray(u4* ptr, int idx, s8 val) +{ +#if defined(NO_UNALIGN_64__UNION) + union { s8 ll; u4 parts[2]; } conv; + + ptr += idx; + conv.ll = val; + ptr[0] = conv.parts[0]; + ptr[1] = conv.parts[1]; +#elif defined(NO_UNALIGN_64__MEMCPY) + memcpy(&ptr[idx], &val, 8); +#else + *((s8*) &ptr[idx]) = val; +#endif +} + +/* get a double from an array of u4 */ +static inline double getDoubleFromArray(const u4* ptr, int idx) +{ +#if defined(NO_UNALIGN_64__UNION) + union { double d; u4 parts[2]; } conv; + + ptr += idx; + conv.parts[0] = ptr[0]; + conv.parts[1] = ptr[1]; + return conv.d; +#elif defined(NO_UNALIGN_64__MEMCPY) + double dval; + memcpy(&dval, &ptr[idx], 8); + return dval; +#else + return *((double*) &ptr[idx]); +#endif +} + +/* store a double into an array of u4 */ +static inline void putDoubleToArray(u4* ptr, int idx, double dval) +{ +#if defined(NO_UNALIGN_64__UNION) + union { double d; u4 parts[2]; } conv; + + ptr += idx; + conv.d = dval; + ptr[0] = conv.parts[0]; + ptr[1] = conv.parts[1]; +#elif defined(NO_UNALIGN_64__MEMCPY) + memcpy(&ptr[idx], &dval, 8); +#else + *((double*) &ptr[idx]) = dval; +#endif +} + +/* + * If enabled, validate the register number on every access. Otherwise, + * just do an array access. + * + * Assumes the existence of "u4* fp". + * + * "_idx" may be referenced more than once. + */ +#ifdef CHECK_REGISTER_INDICES +# define GET_REGISTER(_idx) \ + ( (_idx) < curMethod->registersSize ? \ + (fp[(_idx)]) : (assert(!"bad reg"),1969) ) +# define SET_REGISTER(_idx, _val) \ + ( (_idx) < curMethod->registersSize ? \ + (fp[(_idx)] = (u4)(_val)) : (assert(!"bad reg"),1969) ) +# define GET_REGISTER_AS_OBJECT(_idx) ((Object *)GET_REGISTER(_idx)) +# define SET_REGISTER_AS_OBJECT(_idx, _val) SET_REGISTER(_idx, (s4)_val) +# define GET_REGISTER_INT(_idx) ((s4) GET_REGISTER(_idx)) +# define SET_REGISTER_INT(_idx, _val) SET_REGISTER(_idx, (s4)_val) +# define GET_REGISTER_WIDE(_idx) \ + ( (_idx) < curMethod->registersSize-1 ? \ + getLongFromArray(fp, (_idx)) : (assert(!"bad reg"),1969) ) +# define SET_REGISTER_WIDE(_idx, _val) \ + ( (_idx) < curMethod->registersSize-1 ? \ + putLongToArray(fp, (_idx), (_val)) : (assert(!"bad reg"),1969) ) +# define GET_REGISTER_FLOAT(_idx) \ + ( (_idx) < curMethod->registersSize ? \ + (*((float*) &fp[(_idx)])) : (assert(!"bad reg"),1969.0f) ) +# define SET_REGISTER_FLOAT(_idx, _val) \ + ( (_idx) < curMethod->registersSize ? \ + (*((float*) &fp[(_idx)]) = (_val)) : (assert(!"bad reg"),1969.0f) ) +# define GET_REGISTER_DOUBLE(_idx) \ + ( (_idx) < curMethod->registersSize-1 ? \ + getDoubleFromArray(fp, (_idx)) : (assert(!"bad reg"),1969.0) ) +# define SET_REGISTER_DOUBLE(_idx, _val) \ + ( (_idx) < curMethod->registersSize-1 ? \ + putDoubleToArray(fp, (_idx), (_val)) : (assert(!"bad reg"),1969.0) ) +#else +# define GET_REGISTER(_idx) (fp[(_idx)]) +# define SET_REGISTER(_idx, _val) (fp[(_idx)] = (_val)) +# define GET_REGISTER_AS_OBJECT(_idx) ((Object*) fp[(_idx)]) +# define SET_REGISTER_AS_OBJECT(_idx, _val) (fp[(_idx)] = (u4)(_val)) +# define GET_REGISTER_INT(_idx) ((s4)GET_REGISTER(_idx)) +# define SET_REGISTER_INT(_idx, _val) SET_REGISTER(_idx, (s4)_val) +# define GET_REGISTER_WIDE(_idx) getLongFromArray(fp, (_idx)) +# define SET_REGISTER_WIDE(_idx, _val) putLongToArray(fp, (_idx), (_val)) +# define GET_REGISTER_FLOAT(_idx) (*((float*) &fp[(_idx)])) +# define SET_REGISTER_FLOAT(_idx, _val) (*((float*) &fp[(_idx)]) = (_val)) +# define GET_REGISTER_DOUBLE(_idx) getDoubleFromArray(fp, (_idx)) +# define SET_REGISTER_DOUBLE(_idx, _val) putDoubleToArray(fp, (_idx), (_val)) +#endif + +/* + * Get 16 bits from the specified offset of the program counter. We always + * want to load 16 bits at a time from the instruction stream -- it's more + * efficient than 8 and won't have the alignment problems that 32 might. + * + * Assumes existence of "const u2* pc". + */ +#define FETCH(_offset) (pc[(_offset)]) + +/* + * Extract instruction byte from 16-bit fetch (_inst is a u2). + */ +#define INST_INST(_inst) ((_inst) & 0xff) + +/* + * Replace the opcode (used when handling breakpoints). _opcode is a u1. + */ +#define INST_REPLACE_OP(_inst, _opcode) (((_inst) & 0xff00) | _opcode) + +/* + * Extract the "vA, vB" 4-bit registers from the instruction word (_inst is u2). + */ +#define INST_A(_inst) (((_inst) >> 8) & 0x0f) +#define INST_B(_inst) ((_inst) >> 12) + +/* + * Get the 8-bit "vAA" 8-bit register index from the instruction word. + * (_inst is u2) + */ +#define INST_AA(_inst) ((_inst) >> 8) + +/* + * The current PC must be available to Throwable constructors, e.g. + * those created by dvmThrowException(), so that the exception stack + * trace can be generated correctly. If we don't do this, the offset + * within the current method won't be shown correctly. See the notes + * in Exception.c. + * + * This is also used to determine the address for precise GC. + * + * Assumes existence of "u4* fp" and "const u2* pc". + */ +#define EXPORT_PC() (SAVEAREA_FROM_FP(fp)->xtra.currentPc = pc) + +/* + * Determine if we need to switch to a different interpreter. "_current" + * is either INTERP_STD or INTERP_DBG. It should be fixed for a given + * interpreter generation file, which should remove the outer conditional + * from the following. + * + * If we're building without debug and profiling support, we never switch. + */ +#if defined(WITH_JIT) +# define NEED_INTERP_SWITCH(_current) ( \ + (_current == INTERP_STD) ? \ + dvmJitDebuggerOrProfilerActive() : !dvmJitDebuggerOrProfilerActive() ) +#else +# define NEED_INTERP_SWITCH(_current) ( \ + (_current == INTERP_STD) ? \ + dvmDebuggerOrProfilerActive() : !dvmDebuggerOrProfilerActive() ) +#endif + +/* + * Check to see if "obj" is NULL. If so, throw an exception. Assumes the + * pc has already been exported to the stack. + * + * Perform additional checks on debug builds. + * + * Use this to check for NULL when the instruction handler calls into + * something that could throw an exception (so we have already called + * EXPORT_PC at the top). + */ +static inline bool checkForNull(Object* obj) +{ + if (obj == NULL) { + dvmThrowException("Ljava/lang/NullPointerException;", NULL); + return false; + } +#ifdef WITH_EXTRA_OBJECT_VALIDATION + if (!dvmIsValidObject(obj)) { + LOGE("Invalid object %p\n", obj); + dvmAbort(); + } +#endif +#ifndef NDEBUG + if (obj->clazz == NULL || ((u4) obj->clazz) <= 65536) { + /* probable heap corruption */ + LOGE("Invalid object class %p (in %p)\n", obj->clazz, obj); + dvmAbort(); + } +#endif + return true; +} + +/* + * Check to see if "obj" is NULL. If so, export the PC into the stack + * frame and throw an exception. + * + * Perform additional checks on debug builds. + * + * Use this to check for NULL when the instruction handler doesn't do + * anything else that can throw an exception. + */ +static inline bool checkForNullExportPC(Object* obj, u4* fp, const u2* pc) +{ + if (obj == NULL) { + EXPORT_PC(); + dvmThrowException("Ljava/lang/NullPointerException;", NULL); + return false; + } +#ifdef WITH_EXTRA_OBJECT_VALIDATION + if (!dvmIsValidObject(obj)) { + LOGE("Invalid object %p\n", obj); + dvmAbort(); + } +#endif +#ifndef NDEBUG + if (obj->clazz == NULL || ((u4) obj->clazz) <= 65536) { + /* probable heap corruption */ + LOGE("Invalid object class %p (in %p)\n", obj->clazz, obj); + dvmAbort(); + } +#endif + return true; +} + +/* File: cstubs/stubdefs.c */ +/* this is a standard (no debug support) interpreter */ +#define INTERP_TYPE INTERP_STD +#define CHECK_DEBUG_AND_PROF() ((void)0) +# define CHECK_TRACKED_REFS() ((void)0) +#define CHECK_JIT_BOOL() (false) +#define CHECK_JIT_VOID() +#define ABORT_JIT_TSELECT() ((void)0) + +/* + * In the C mterp stubs, "goto" is a function call followed immediately + * by a return. + */ + +#define GOTO_TARGET_DECL(_target, ...) \ + void dvmMterp_##_target(MterpGlue* glue, ## __VA_ARGS__); + +#define GOTO_TARGET(_target, ...) \ + void dvmMterp_##_target(MterpGlue* glue, ## __VA_ARGS__) { \ + u2 ref, vsrc1, vsrc2, vdst; \ + u2 inst = FETCH(0); \ + const Method* methodToCall; \ + StackSaveArea* debugSaveArea; + +#define GOTO_TARGET_END } + +/* + * Redefine what used to be local variable accesses into MterpGlue struct + * references. (These are undefined down in "footer.c".) + */ +#define retval glue->retval +#define pc glue->pc +#define fp glue->fp +#define curMethod glue->method +#define methodClassDex glue->methodClassDex +#define self glue->self +#define debugTrackedRefStart glue->debugTrackedRefStart + +/* ugh */ +#define STUB_HACK(x) x + + +/* + * Opcode handler framing macros. Here, each opcode is a separate function + * that takes a "glue" argument and returns void. We can't declare + * these "static" because they may be called from an assembly stub. + */ +#define HANDLE_OPCODE(_op) \ + void dvmMterp_##_op(MterpGlue* glue) { \ + u2 ref, vsrc1, vsrc2, vdst; \ + u2 inst = FETCH(0); + +#define OP_END } + +/* + * Like the "portable" FINISH, but don't reload "inst", and return to caller + * when done. + */ +#define FINISH(_offset) { \ + ADJUST_PC(_offset); \ + CHECK_DEBUG_AND_PROF(); \ + CHECK_TRACKED_REFS(); \ + return; \ + } + + +/* + * The "goto label" statements turn into function calls followed by + * return statements. Some of the functions take arguments, which in the + * portable interpreter are handled by assigning values to globals. + */ + +#define GOTO_exceptionThrown() \ + do { \ + dvmMterp_exceptionThrown(glue); \ + return; \ + } while(false) + +#define GOTO_returnFromMethod() \ + do { \ + dvmMterp_returnFromMethod(glue); \ + return; \ + } while(false) + +#define GOTO_invoke(_target, _methodCallRange) \ + do { \ + dvmMterp_##_target(glue, _methodCallRange); \ + return; \ + } while(false) + +#define GOTO_invokeMethod(_methodCallRange, _methodToCall, _vsrc1, _vdst) \ + do { \ + dvmMterp_invokeMethod(glue, _methodCallRange, _methodToCall, \ + _vsrc1, _vdst); \ + return; \ + } while(false) + +/* + * As a special case, "goto bail" turns into a longjmp. Use "bail_switch" + * if we need to switch to the other interpreter upon our return. + */ +#define GOTO_bail() \ + dvmMterpStdBail(glue, false); +#define GOTO_bail_switch() \ + dvmMterpStdBail(glue, true); + +/* + * Periodically check for thread suspension. + * + * While we're at it, see if a debugger has attached or the profiler has + * started. If so, switch to a different "goto" table. + */ +#define PERIODIC_CHECKS(_entryPoint, _pcadj) { \ + if (dvmCheckSuspendQuick(self)) { \ + EXPORT_PC(); /* need for precise GC */ \ + dvmCheckSuspendPending(self); \ + } \ + if (NEED_INTERP_SWITCH(INTERP_TYPE)) { \ + ADJUST_PC(_pcadj); \ + glue->entryPoint = _entryPoint; \ + LOGVV("threadid=%d: switch to STD ep=%d adj=%d\n", \ + self->threadId, (_entryPoint), (_pcadj)); \ + GOTO_bail_switch(); \ + } \ + } + +/* File: c/opcommon.c */ +/* forward declarations of goto targets */ +GOTO_TARGET_DECL(filledNewArray, bool methodCallRange); +GOTO_TARGET_DECL(invokeVirtual, bool methodCallRange); +GOTO_TARGET_DECL(invokeSuper, bool methodCallRange); +GOTO_TARGET_DECL(invokeInterface, bool methodCallRange); +GOTO_TARGET_DECL(invokeDirect, bool methodCallRange); +GOTO_TARGET_DECL(invokeStatic, bool methodCallRange); +GOTO_TARGET_DECL(invokeVirtualQuick, bool methodCallRange); +GOTO_TARGET_DECL(invokeSuperQuick, bool methodCallRange); +GOTO_TARGET_DECL(invokeMethod, bool methodCallRange, const Method* methodToCall, + u2 count, u2 regs); +GOTO_TARGET_DECL(returnFromMethod); +GOTO_TARGET_DECL(exceptionThrown); + +/* + * =========================================================================== + * + * What follows are opcode definitions shared between multiple opcodes with + * minor substitutions handled by the C pre-processor. These should probably + * use the mterp substitution mechanism instead, with the code here moved + * into common fragment files (like the asm "binop.S"), although it's hard + * to give up the C preprocessor in favor of the much simpler text subst. + * + * =========================================================================== + */ + +#define HANDLE_NUMCONV(_opcode, _opname, _fromtype, _totype) \ + HANDLE_OPCODE(_opcode /*vA, vB*/) \ + vdst = INST_A(inst); \ + vsrc1 = INST_B(inst); \ + ILOGV("|%s v%d,v%d", (_opname), vdst, vsrc1); \ + SET_REGISTER##_totype(vdst, \ + GET_REGISTER##_fromtype(vsrc1)); \ + FINISH(1); + +#define HANDLE_FLOAT_TO_INT(_opcode, _opname, _fromvtype, _fromrtype, \ + _tovtype, _tortype) \ + HANDLE_OPCODE(_opcode /*vA, vB*/) \ + { \ + /* spec defines specific handling for +/- inf and NaN values */ \ + _fromvtype val; \ + _tovtype intMin, intMax, result; \ + vdst = INST_A(inst); \ + vsrc1 = INST_B(inst); \ + ILOGV("|%s v%d,v%d", (_opname), vdst, vsrc1); \ + val = GET_REGISTER##_fromrtype(vsrc1); \ + intMin = (_tovtype) 1 << (sizeof(_tovtype) * 8 -1); \ + intMax = ~intMin; \ + result = (_tovtype) val; \ + if (val >= intMax) /* +inf */ \ + result = intMax; \ + else if (val <= intMin) /* -inf */ \ + result = intMin; \ + else if (val != val) /* NaN */ \ + result = 0; \ + else \ + result = (_tovtype) val; \ + SET_REGISTER##_tortype(vdst, result); \ + } \ + FINISH(1); + +#define HANDLE_INT_TO_SMALL(_opcode, _opname, _type) \ + HANDLE_OPCODE(_opcode /*vA, vB*/) \ + vdst = INST_A(inst); \ + vsrc1 = INST_B(inst); \ + ILOGV("|int-to-%s v%d,v%d", (_opname), vdst, vsrc1); \ + SET_REGISTER(vdst, (_type) GET_REGISTER(vsrc1)); \ + FINISH(1); + +/* NOTE: the comparison result is always a signed 4-byte integer */ +#define HANDLE_OP_CMPX(_opcode, _opname, _varType, _type, _nanVal) \ + HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/) \ + { \ + int result; \ + u2 regs; \ + _varType val1, val2; \ + vdst = INST_AA(inst); \ + regs = FETCH(1); \ + vsrc1 = regs & 0xff; \ + vsrc2 = regs >> 8; \ + ILOGV("|cmp%s v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2); \ + val1 = GET_REGISTER##_type(vsrc1); \ + val2 = GET_REGISTER##_type(vsrc2); \ + if (val1 == val2) \ + result = 0; \ + else if (val1 < val2) \ + result = -1; \ + else if (val1 > val2) \ + result = 1; \ + else \ + result = (_nanVal); \ + ILOGV("+ result=%d\n", result); \ + SET_REGISTER(vdst, result); \ + } \ + FINISH(2); + +#define HANDLE_OP_IF_XX(_opcode, _opname, _cmp) \ + HANDLE_OPCODE(_opcode /*vA, vB, +CCCC*/) \ + vsrc1 = INST_A(inst); \ + vsrc2 = INST_B(inst); \ + if ((s4) GET_REGISTER(vsrc1) _cmp (s4) GET_REGISTER(vsrc2)) { \ + int branchOffset = (s2)FETCH(1); /* sign-extended */ \ + ILOGV("|if-%s v%d,v%d,+0x%04x", (_opname), vsrc1, vsrc2, \ + branchOffset); \ + ILOGV("> branch taken"); \ + if (branchOffset < 0) \ + PERIODIC_CHECKS(kInterpEntryInstr, branchOffset); \ + FINISH(branchOffset); \ + } else { \ + ILOGV("|if-%s v%d,v%d,-", (_opname), vsrc1, vsrc2); \ + FINISH(2); \ + } + +#define HANDLE_OP_IF_XXZ(_opcode, _opname, _cmp) \ + HANDLE_OPCODE(_opcode /*vAA, +BBBB*/) \ + vsrc1 = INST_AA(inst); \ + if ((s4) GET_REGISTER(vsrc1) _cmp 0) { \ + int branchOffset = (s2)FETCH(1); /* sign-extended */ \ + ILOGV("|if-%s v%d,+0x%04x", (_opname), vsrc1, branchOffset); \ + ILOGV("> branch taken"); \ + if (branchOffset < 0) \ + PERIODIC_CHECKS(kInterpEntryInstr, branchOffset); \ + FINISH(branchOffset); \ + } else { \ + ILOGV("|if-%s v%d,-", (_opname), vsrc1); \ + FINISH(2); \ + } + +#define HANDLE_UNOP(_opcode, _opname, _pfx, _sfx, _type) \ + HANDLE_OPCODE(_opcode /*vA, vB*/) \ + vdst = INST_A(inst); \ + vsrc1 = INST_B(inst); \ + ILOGV("|%s v%d,v%d", (_opname), vdst, vsrc1); \ + SET_REGISTER##_type(vdst, _pfx GET_REGISTER##_type(vsrc1) _sfx); \ + FINISH(1); + +#define HANDLE_OP_X_INT(_opcode, _opname, _op, _chkdiv) \ + HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/) \ + { \ + u2 srcRegs; \ + vdst = INST_AA(inst); \ + srcRegs = FETCH(1); \ + vsrc1 = srcRegs & 0xff; \ + vsrc2 = srcRegs >> 8; \ + ILOGV("|%s-int v%d,v%d", (_opname), vdst, vsrc1); \ + if (_chkdiv != 0) { \ + s4 firstVal, secondVal, result; \ + firstVal = GET_REGISTER(vsrc1); \ + secondVal = GET_REGISTER(vsrc2); \ + if (secondVal == 0) { \ + EXPORT_PC(); \ + dvmThrowException("Ljava/lang/ArithmeticException;", \ + "divide by zero"); \ + GOTO_exceptionThrown(); \ + } \ + if ((u4)firstVal == 0x80000000 && secondVal == -1) { \ + if (_chkdiv == 1) \ + result = firstVal; /* division */ \ + else \ + result = 0; /* remainder */ \ + } else { \ + result = firstVal _op secondVal; \ + } \ + SET_REGISTER(vdst, result); \ + } else { \ + /* non-div/rem case */ \ + SET_REGISTER(vdst, \ + (s4) GET_REGISTER(vsrc1) _op (s4) GET_REGISTER(vsrc2)); \ + } \ + } \ + FINISH(2); + +#define HANDLE_OP_SHX_INT(_opcode, _opname, _cast, _op) \ + HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/) \ + { \ + u2 srcRegs; \ + vdst = INST_AA(inst); \ + srcRegs = FETCH(1); \ + vsrc1 = srcRegs & 0xff; \ + vsrc2 = srcRegs >> 8; \ + ILOGV("|%s-int v%d,v%d", (_opname), vdst, vsrc1); \ + SET_REGISTER(vdst, \ + _cast GET_REGISTER(vsrc1) _op (GET_REGISTER(vsrc2) & 0x1f)); \ + } \ + FINISH(2); + +#define HANDLE_OP_X_INT_LIT16(_opcode, _opname, _op, _chkdiv) \ + HANDLE_OPCODE(_opcode /*vA, vB, #+CCCC*/) \ + vdst = INST_A(inst); \ + vsrc1 = INST_B(inst); \ + vsrc2 = FETCH(1); \ + ILOGV("|%s-int/lit16 v%d,v%d,#+0x%04x", \ + (_opname), vdst, vsrc1, vsrc2); \ + if (_chkdiv != 0) { \ + s4 firstVal, result; \ + firstVal = GET_REGISTER(vsrc1); \ + if ((s2) vsrc2 == 0) { \ + EXPORT_PC(); \ + dvmThrowException("Ljava/lang/ArithmeticException;", \ + "divide by zero"); \ + GOTO_exceptionThrown(); \ + } \ + if ((u4)firstVal == 0x80000000 && ((s2) vsrc2) == -1) { \ + /* won't generate /lit16 instr for this; check anyway */ \ + if (_chkdiv == 1) \ + result = firstVal; /* division */ \ + else \ + result = 0; /* remainder */ \ + } else { \ + result = firstVal _op (s2) vsrc2; \ + } \ + SET_REGISTER(vdst, result); \ + } else { \ + /* non-div/rem case */ \ + SET_REGISTER(vdst, GET_REGISTER(vsrc1) _op (s2) vsrc2); \ + } \ + FINISH(2); + +#define HANDLE_OP_X_INT_LIT8(_opcode, _opname, _op, _chkdiv) \ + HANDLE_OPCODE(_opcode /*vAA, vBB, #+CC*/) \ + { \ + u2 litInfo; \ + vdst = INST_AA(inst); \ + litInfo = FETCH(1); \ + vsrc1 = litInfo & 0xff; \ + vsrc2 = litInfo >> 8; /* constant */ \ + ILOGV("|%s-int/lit8 v%d,v%d,#+0x%02x", \ + (_opname), vdst, vsrc1, vsrc2); \ + if (_chkdiv != 0) { \ + s4 firstVal, result; \ + firstVal = GET_REGISTER(vsrc1); \ + if ((s1) vsrc2 == 0) { \ + EXPORT_PC(); \ + dvmThrowException("Ljava/lang/ArithmeticException;", \ + "divide by zero"); \ + GOTO_exceptionThrown(); \ + } \ + if ((u4)firstVal == 0x80000000 && ((s1) vsrc2) == -1) { \ + if (_chkdiv == 1) \ + result = firstVal; /* division */ \ + else \ + result = 0; /* remainder */ \ + } else { \ + result = firstVal _op ((s1) vsrc2); \ + } \ + SET_REGISTER(vdst, result); \ + } else { \ + SET_REGISTER(vdst, \ + (s4) GET_REGISTER(vsrc1) _op (s1) vsrc2); \ + } \ + } \ + FINISH(2); + +#define HANDLE_OP_SHX_INT_LIT8(_opcode, _opname, _cast, _op) \ + HANDLE_OPCODE(_opcode /*vAA, vBB, #+CC*/) \ + { \ + u2 litInfo; \ + vdst = INST_AA(inst); \ + litInfo = FETCH(1); \ + vsrc1 = litInfo & 0xff; \ + vsrc2 = litInfo >> 8; /* constant */ \ + ILOGV("|%s-int/lit8 v%d,v%d,#+0x%02x", \ + (_opname), vdst, vsrc1, vsrc2); \ + SET_REGISTER(vdst, \ + _cast GET_REGISTER(vsrc1) _op (vsrc2 & 0x1f)); \ + } \ + FINISH(2); + +#define HANDLE_OP_X_INT_2ADDR(_opcode, _opname, _op, _chkdiv) \ + HANDLE_OPCODE(_opcode /*vA, vB*/) \ + vdst = INST_A(inst); \ + vsrc1 = INST_B(inst); \ + ILOGV("|%s-int-2addr v%d,v%d", (_opname), vdst, vsrc1); \ + if (_chkdiv != 0) { \ + s4 firstVal, secondVal, result; \ + firstVal = GET_REGISTER(vdst); \ + secondVal = GET_REGISTER(vsrc1); \ + if (secondVal == 0) { \ + EXPORT_PC(); \ + dvmThrowException("Ljava/lang/ArithmeticException;", \ + "divide by zero"); \ + GOTO_exceptionThrown(); \ + } \ + if ((u4)firstVal == 0x80000000 && secondVal == -1) { \ + if (_chkdiv == 1) \ + result = firstVal; /* division */ \ + else \ + result = 0; /* remainder */ \ + } else { \ + result = firstVal _op secondVal; \ + } \ + SET_REGISTER(vdst, result); \ + } else { \ + SET_REGISTER(vdst, \ + (s4) GET_REGISTER(vdst) _op (s4) GET_REGISTER(vsrc1)); \ + } \ + FINISH(1); + +#define HANDLE_OP_SHX_INT_2ADDR(_opcode, _opname, _cast, _op) \ + HANDLE_OPCODE(_opcode /*vA, vB*/) \ + vdst = INST_A(inst); \ + vsrc1 = INST_B(inst); \ + ILOGV("|%s-int-2addr v%d,v%d", (_opname), vdst, vsrc1); \ + SET_REGISTER(vdst, \ + _cast GET_REGISTER(vdst) _op (GET_REGISTER(vsrc1) & 0x1f)); \ + FINISH(1); + +#define HANDLE_OP_X_LONG(_opcode, _opname, _op, _chkdiv) \ + HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/) \ + { \ + u2 srcRegs; \ + vdst = INST_AA(inst); \ + srcRegs = FETCH(1); \ + vsrc1 = srcRegs & 0xff; \ + vsrc2 = srcRegs >> 8; \ + ILOGV("|%s-long v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2); \ + if (_chkdiv != 0) { \ + s8 firstVal, secondVal, result; \ + firstVal = GET_REGISTER_WIDE(vsrc1); \ + secondVal = GET_REGISTER_WIDE(vsrc2); \ + if (secondVal == 0LL) { \ + EXPORT_PC(); \ + dvmThrowException("Ljava/lang/ArithmeticException;", \ + "divide by zero"); \ + GOTO_exceptionThrown(); \ + } \ + if ((u8)firstVal == 0x8000000000000000ULL && \ + secondVal == -1LL) \ + { \ + if (_chkdiv == 1) \ + result = firstVal; /* division */ \ + else \ + result = 0; /* remainder */ \ + } else { \ + result = firstVal _op secondVal; \ + } \ + SET_REGISTER_WIDE(vdst, result); \ + } else { \ + SET_REGISTER_WIDE(vdst, \ + (s8) GET_REGISTER_WIDE(vsrc1) _op (s8) GET_REGISTER_WIDE(vsrc2)); \ + } \ + } \ + FINISH(2); + +#define HANDLE_OP_SHX_LONG(_opcode, _opname, _cast, _op) \ + HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/) \ + { \ + u2 srcRegs; \ + vdst = INST_AA(inst); \ + srcRegs = FETCH(1); \ + vsrc1 = srcRegs & 0xff; \ + vsrc2 = srcRegs >> 8; \ + ILOGV("|%s-long v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2); \ + SET_REGISTER_WIDE(vdst, \ + _cast GET_REGISTER_WIDE(vsrc1) _op (GET_REGISTER(vsrc2) & 0x3f)); \ + } \ + FINISH(2); + +#define HANDLE_OP_X_LONG_2ADDR(_opcode, _opname, _op, _chkdiv) \ + HANDLE_OPCODE(_opcode /*vA, vB*/) \ + vdst = INST_A(inst); \ + vsrc1 = INST_B(inst); \ + ILOGV("|%s-long-2addr v%d,v%d", (_opname), vdst, vsrc1); \ + if (_chkdiv != 0) { \ + s8 firstVal, secondVal, result; \ + firstVal = GET_REGISTER_WIDE(vdst); \ + secondVal = GET_REGISTER_WIDE(vsrc1); \ + if (secondVal == 0LL) { \ + EXPORT_PC(); \ + dvmThrowException("Ljava/lang/ArithmeticException;", \ + "divide by zero"); \ + GOTO_exceptionThrown(); \ + } \ + if ((u8)firstVal == 0x8000000000000000ULL && \ + secondVal == -1LL) \ + { \ + if (_chkdiv == 1) \ + result = firstVal; /* division */ \ + else \ + result = 0; /* remainder */ \ + } else { \ + result = firstVal _op secondVal; \ + } \ + SET_REGISTER_WIDE(vdst, result); \ + } else { \ + SET_REGISTER_WIDE(vdst, \ + (s8) GET_REGISTER_WIDE(vdst) _op (s8)GET_REGISTER_WIDE(vsrc1));\ + } \ + FINISH(1); + +#define HANDLE_OP_SHX_LONG_2ADDR(_opcode, _opname, _cast, _op) \ + HANDLE_OPCODE(_opcode /*vA, vB*/) \ + vdst = INST_A(inst); \ + vsrc1 = INST_B(inst); \ + ILOGV("|%s-long-2addr v%d,v%d", (_opname), vdst, vsrc1); \ + SET_REGISTER_WIDE(vdst, \ + _cast GET_REGISTER_WIDE(vdst) _op (GET_REGISTER(vsrc1) & 0x3f)); \ + FINISH(1); + +#define HANDLE_OP_X_FLOAT(_opcode, _opname, _op) \ + HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/) \ + { \ + u2 srcRegs; \ + vdst = INST_AA(inst); \ + srcRegs = FETCH(1); \ + vsrc1 = srcRegs & 0xff; \ + vsrc2 = srcRegs >> 8; \ + ILOGV("|%s-float v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2); \ + SET_REGISTER_FLOAT(vdst, \ + GET_REGISTER_FLOAT(vsrc1) _op GET_REGISTER_FLOAT(vsrc2)); \ + } \ + FINISH(2); + +#define HANDLE_OP_X_DOUBLE(_opcode, _opname, _op) \ + HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/) \ + { \ + u2 srcRegs; \ + vdst = INST_AA(inst); \ + srcRegs = FETCH(1); \ + vsrc1 = srcRegs & 0xff; \ + vsrc2 = srcRegs >> 8; \ + ILOGV("|%s-double v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2); \ + SET_REGISTER_DOUBLE(vdst, \ + GET_REGISTER_DOUBLE(vsrc1) _op GET_REGISTER_DOUBLE(vsrc2)); \ + } \ + FINISH(2); + +#define HANDLE_OP_X_FLOAT_2ADDR(_opcode, _opname, _op) \ + HANDLE_OPCODE(_opcode /*vA, vB*/) \ + vdst = INST_A(inst); \ + vsrc1 = INST_B(inst); \ + ILOGV("|%s-float-2addr v%d,v%d", (_opname), vdst, vsrc1); \ + SET_REGISTER_FLOAT(vdst, \ + GET_REGISTER_FLOAT(vdst) _op GET_REGISTER_FLOAT(vsrc1)); \ + FINISH(1); + +#define HANDLE_OP_X_DOUBLE_2ADDR(_opcode, _opname, _op) \ + HANDLE_OPCODE(_opcode /*vA, vB*/) \ + vdst = INST_A(inst); \ + vsrc1 = INST_B(inst); \ + ILOGV("|%s-double-2addr v%d,v%d", (_opname), vdst, vsrc1); \ + SET_REGISTER_DOUBLE(vdst, \ + GET_REGISTER_DOUBLE(vdst) _op GET_REGISTER_DOUBLE(vsrc1)); \ + FINISH(1); + +#define HANDLE_OP_AGET(_opcode, _opname, _type, _regsize) \ + HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/) \ + { \ + ArrayObject* arrayObj; \ + u2 arrayInfo; \ + EXPORT_PC(); \ + vdst = INST_AA(inst); \ + arrayInfo = FETCH(1); \ + vsrc1 = arrayInfo & 0xff; /* array ptr */ \ + vsrc2 = arrayInfo >> 8; /* index */ \ + ILOGV("|aget%s v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2); \ + arrayObj = (ArrayObject*) GET_REGISTER(vsrc1); \ + if (!checkForNull((Object*) arrayObj)) \ + GOTO_exceptionThrown(); \ + if (GET_REGISTER(vsrc2) >= arrayObj->length) { \ + LOGV("Invalid array access: %p %d (len=%d)\n", \ + arrayObj, vsrc2, arrayObj->length); \ + dvmThrowException("Ljava/lang/ArrayIndexOutOfBoundsException;", \ + NULL); \ + GOTO_exceptionThrown(); \ + } \ + SET_REGISTER##_regsize(vdst, \ + ((_type*) arrayObj->contents)[GET_REGISTER(vsrc2)]); \ + ILOGV("+ AGET[%d]=0x%x", GET_REGISTER(vsrc2), GET_REGISTER(vdst)); \ + } \ + FINISH(2); + +#define HANDLE_OP_APUT(_opcode, _opname, _type, _regsize) \ + HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/) \ + { \ + ArrayObject* arrayObj; \ + u2 arrayInfo; \ + EXPORT_PC(); \ + vdst = INST_AA(inst); /* AA: source value */ \ + arrayInfo = FETCH(1); \ + vsrc1 = arrayInfo & 0xff; /* BB: array ptr */ \ + vsrc2 = arrayInfo >> 8; /* CC: index */ \ + ILOGV("|aput%s v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2); \ + arrayObj = (ArrayObject*) GET_REGISTER(vsrc1); \ + if (!checkForNull((Object*) arrayObj)) \ + GOTO_exceptionThrown(); \ + if (GET_REGISTER(vsrc2) >= arrayObj->length) { \ + dvmThrowException("Ljava/lang/ArrayIndexOutOfBoundsException;", \ + NULL); \ + GOTO_exceptionThrown(); \ + } \ + ILOGV("+ APUT[%d]=0x%08x", GET_REGISTER(vsrc2), GET_REGISTER(vdst));\ + ((_type*) arrayObj->contents)[GET_REGISTER(vsrc2)] = \ + GET_REGISTER##_regsize(vdst); \ + } \ + FINISH(2); + +/* + * It's possible to get a bad value out of a field with sub-32-bit stores + * because the -quick versions always operate on 32 bits. Consider: + * short foo = -1 (sets a 32-bit register to 0xffffffff) + * iput-quick foo (writes all 32 bits to the field) + * short bar = 1 (sets a 32-bit register to 0x00000001) + * iput-short (writes the low 16 bits to the field) + * iget-quick foo (reads all 32 bits from the field, yielding 0xffff0001) + * This can only happen when optimized and non-optimized code has interleaved + * access to the same field. This is unlikely but possible. + * + * The easiest way to fix this is to always read/write 32 bits at a time. On + * a device with a 16-bit data bus this is sub-optimal. (The alternative + * approach is to have sub-int versions of iget-quick, but now we're wasting + * Dalvik instruction space and making it less likely that handler code will + * already be in the CPU i-cache.) + */ +#define HANDLE_IGET_X(_opcode, _opname, _ftype, _regsize) \ + HANDLE_OPCODE(_opcode /*vA, vB, field@CCCC*/) \ + { \ + InstField* ifield; \ + Object* obj; \ + EXPORT_PC(); \ + vdst = INST_A(inst); \ + vsrc1 = INST_B(inst); /* object ptr */ \ + ref = FETCH(1); /* field ref */ \ + ILOGV("|iget%s v%d,v%d,field@0x%04x", (_opname), vdst, vsrc1, ref); \ + obj = (Object*) GET_REGISTER(vsrc1); \ + if (!checkForNull(obj)) \ + GOTO_exceptionThrown(); \ + ifield = (InstField*) dvmDexGetResolvedField(methodClassDex, ref); \ + if (ifield == NULL) { \ + ifield = dvmResolveInstField(curMethod->clazz, ref); \ + if (ifield == NULL) \ + GOTO_exceptionThrown(); \ + } \ + SET_REGISTER##_regsize(vdst, \ + dvmGetField##_ftype(obj, ifield->byteOffset)); \ + ILOGV("+ IGET '%s'=0x%08llx", ifield->field.name, \ + (u8) GET_REGISTER##_regsize(vdst)); \ + UPDATE_FIELD_GET(&ifield->field); \ + } \ + FINISH(2); + +#define HANDLE_IGET_X_QUICK(_opcode, _opname, _ftype, _regsize) \ + HANDLE_OPCODE(_opcode /*vA, vB, field@CCCC*/) \ + { \ + Object* obj; \ + vdst = INST_A(inst); \ + vsrc1 = INST_B(inst); /* object ptr */ \ + ref = FETCH(1); /* field offset */ \ + ILOGV("|iget%s-quick v%d,v%d,field@+%u", \ + (_opname), vdst, vsrc1, ref); \ + obj = (Object*) GET_REGISTER(vsrc1); \ + if (!checkForNullExportPC(obj, fp, pc)) \ + GOTO_exceptionThrown(); \ + SET_REGISTER##_regsize(vdst, dvmGetField##_ftype(obj, ref)); \ + ILOGV("+ IGETQ %d=0x%08llx", ref, \ + (u8) GET_REGISTER##_regsize(vdst)); \ + } \ + FINISH(2); + +#define HANDLE_IPUT_X(_opcode, _opname, _ftype, _regsize) \ + HANDLE_OPCODE(_opcode /*vA, vB, field@CCCC*/) \ + { \ + InstField* ifield; \ + Object* obj; \ + EXPORT_PC(); \ + vdst = INST_A(inst); \ + vsrc1 = INST_B(inst); /* object ptr */ \ + ref = FETCH(1); /* field ref */ \ + ILOGV("|iput%s v%d,v%d,field@0x%04x", (_opname), vdst, vsrc1, ref); \ + obj = (Object*) GET_REGISTER(vsrc1); \ + if (!checkForNull(obj)) \ + GOTO_exceptionThrown(); \ + ifield = (InstField*) dvmDexGetResolvedField(methodClassDex, ref); \ + if (ifield == NULL) { \ + ifield = dvmResolveInstField(curMethod->clazz, ref); \ + if (ifield == NULL) \ + GOTO_exceptionThrown(); \ + } \ + dvmSetField##_ftype(obj, ifield->byteOffset, \ + GET_REGISTER##_regsize(vdst)); \ + ILOGV("+ IPUT '%s'=0x%08llx", ifield->field.name, \ + (u8) GET_REGISTER##_regsize(vdst)); \ + UPDATE_FIELD_PUT(&ifield->field); \ + } \ + FINISH(2); + +#define HANDLE_IPUT_X_QUICK(_opcode, _opname, _ftype, _regsize) \ + HANDLE_OPCODE(_opcode /*vA, vB, field@CCCC*/) \ + { \ + Object* obj; \ + vdst = INST_A(inst); \ + vsrc1 = INST_B(inst); /* object ptr */ \ + ref = FETCH(1); /* field offset */ \ + ILOGV("|iput%s-quick v%d,v%d,field@0x%04x", \ + (_opname), vdst, vsrc1, ref); \ + obj = (Object*) GET_REGISTER(vsrc1); \ + if (!checkForNullExportPC(obj, fp, pc)) \ + GOTO_exceptionThrown(); \ + dvmSetField##_ftype(obj, ref, GET_REGISTER##_regsize(vdst)); \ + ILOGV("+ IPUTQ %d=0x%08llx", ref, \ + (u8) GET_REGISTER##_regsize(vdst)); \ + } \ + FINISH(2); + +/* + * The JIT needs dvmDexGetResolvedField() to return non-null. + * Since we use the portable interpreter to build the trace, the extra + * checks in HANDLE_SGET_X and HANDLE_SPUT_X are not needed for mterp. + */ +#define HANDLE_SGET_X(_opcode, _opname, _ftype, _regsize) \ + HANDLE_OPCODE(_opcode /*vAA, field@BBBB*/) \ + { \ + StaticField* sfield; \ + vdst = INST_AA(inst); \ + ref = FETCH(1); /* field ref */ \ + ILOGV("|sget%s v%d,sfield@0x%04x", (_opname), vdst, ref); \ + sfield = (StaticField*)dvmDexGetResolvedField(methodClassDex, ref); \ + if (sfield == NULL) { \ + EXPORT_PC(); \ + sfield = dvmResolveStaticField(curMethod->clazz, ref); \ + if (sfield == NULL) \ + GOTO_exceptionThrown(); \ + if (dvmDexGetResolvedField(methodClassDex, ref) == NULL) { \ + ABORT_JIT_TSELECT(); \ + } \ + } \ + SET_REGISTER##_regsize(vdst, dvmGetStaticField##_ftype(sfield)); \ + ILOGV("+ SGET '%s'=0x%08llx", \ + sfield->field.name, (u8)GET_REGISTER##_regsize(vdst)); \ + UPDATE_FIELD_GET(&sfield->field); \ + } \ + FINISH(2); + +#define HANDLE_SPUT_X(_opcode, _opname, _ftype, _regsize) \ + HANDLE_OPCODE(_opcode /*vAA, field@BBBB*/) \ + { \ + StaticField* sfield; \ + vdst = INST_AA(inst); \ + ref = FETCH(1); /* field ref */ \ + ILOGV("|sput%s v%d,sfield@0x%04x", (_opname), vdst, ref); \ + sfield = (StaticField*)dvmDexGetResolvedField(methodClassDex, ref); \ + if (sfield == NULL) { \ + EXPORT_PC(); \ + sfield = dvmResolveStaticField(curMethod->clazz, ref); \ + if (sfield == NULL) \ + GOTO_exceptionThrown(); \ + if (dvmDexGetResolvedField(methodClassDex, ref) == NULL) { \ + ABORT_JIT_TSELECT(); \ + } \ + } \ + dvmSetStaticField##_ftype(sfield, GET_REGISTER##_regsize(vdst)); \ + ILOGV("+ SPUT '%s'=0x%08llx", \ + sfield->field.name, (u8)GET_REGISTER##_regsize(vdst)); \ + UPDATE_FIELD_PUT(&sfield->field); \ + } \ + FINISH(2); + +/* File: c/OP_IGET_VOLATILE.c */ +HANDLE_IGET_X(OP_IGET_VOLATILE, "-volatile", IntVolatile, ) +OP_END + +/* File: c/OP_IPUT_VOLATILE.c */ +HANDLE_IPUT_X(OP_IPUT_VOLATILE, "-volatile", IntVolatile, ) +OP_END + +/* File: c/OP_SGET_VOLATILE.c */ +HANDLE_SGET_X(OP_SGET_VOLATILE, "-volatile", IntVolatile, ) +OP_END + +/* File: c/OP_SPUT_VOLATILE.c */ +HANDLE_SPUT_X(OP_SPUT_VOLATILE, "-volatile", IntVolatile, ) +OP_END + +/* File: c/OP_IGET_OBJECT_VOLATILE.c */ +HANDLE_IGET_X(OP_IGET_OBJECT_VOLATILE, "-object-volatile", ObjectVolatile, _AS_OBJECT) +OP_END + +/* File: c/OP_IGET_WIDE_VOLATILE.c */ +HANDLE_IGET_X(OP_IGET_WIDE_VOLATILE, "-wide-volatile", LongVolatile, _WIDE) +OP_END + +/* File: c/OP_IPUT_WIDE_VOLATILE.c */ +HANDLE_IPUT_X(OP_IPUT_WIDE_VOLATILE, "-wide-volatile", LongVolatile, _WIDE) +OP_END + +/* File: c/OP_SGET_WIDE_VOLATILE.c */ +HANDLE_SGET_X(OP_SGET_WIDE_VOLATILE, "-wide-volatile", LongVolatile, _WIDE) +OP_END + +/* File: c/OP_SPUT_WIDE_VOLATILE.c */ +HANDLE_SPUT_X(OP_SPUT_WIDE_VOLATILE, "-wide-volatile", LongVolatile, _WIDE) +OP_END + +/* File: c/OP_BREAKPOINT.c */ +HANDLE_OPCODE(OP_BREAKPOINT) +#if (INTERP_TYPE == INTERP_DBG) + { + /* + * Restart this instruction with the original opcode. We do + * this by simply jumping to the handler. + * + * It's probably not necessary to update "inst", but we do it + * for the sake of anything that needs to do disambiguation in a + * common handler with INST_INST. + * + * The breakpoint itself is handled over in updateDebugger(), + * because we need to detect other events (method entry, single + * step) and report them in the same event packet, and we're not + * yet handling those through breakpoint instructions. By the + * time we get here, the breakpoint has already been handled and + * the thread resumed. + */ + u1 originalOpCode = dvmGetOriginalOpCode(pc); + LOGV("+++ break 0x%02x (0x%04x -> 0x%04x)\n", originalOpCode, inst, + INST_REPLACE_OP(inst, originalOpCode)); + inst = INST_REPLACE_OP(inst, originalOpCode); + FINISH_BKPT(originalOpCode); + } +#else + LOGE("Breakpoint hit in non-debug interpreter\n"); + dvmAbort(); +#endif +OP_END + +/* File: c/OP_EXECUTE_INLINE_RANGE.c */ +HANDLE_OPCODE(OP_EXECUTE_INLINE_RANGE /*{vCCCC..v(CCCC+AA-1)}, inline@BBBB*/) + { + u4 arg0, arg1, arg2, arg3; + arg0 = arg1 = arg2 = arg3 = 0; /* placate gcc */ + + EXPORT_PC(); + + vsrc1 = INST_AA(inst); /* #of args */ + ref = FETCH(1); /* inline call "ref" */ + vdst = FETCH(2); /* range base */ + ILOGV("|execute-inline-range args=%d @%d {regs=v%d-v%d}", + vsrc1, ref, vdst, vdst+vsrc1-1); + + assert((vdst >> 16) == 0); // 16-bit type -or- high 16 bits clear + assert(vsrc1 <= 4); + + switch (vsrc1) { + case 4: + arg3 = GET_REGISTER(vdst+3); + /* fall through */ + case 3: + arg2 = GET_REGISTER(vdst+2); + /* fall through */ + case 2: + arg1 = GET_REGISTER(vdst+1); + /* fall through */ + case 1: + arg0 = GET_REGISTER(vdst+0); + /* fall through */ + default: // case 0 + ; + } + +#if INTERP_TYPE == INTERP_DBG + if (!dvmPerformInlineOp4Dbg(arg0, arg1, arg2, arg3, &retval, ref)) + GOTO_exceptionThrown(); +#else + if (!dvmPerformInlineOp4Std(arg0, arg1, arg2, arg3, &retval, ref)) + GOTO_exceptionThrown(); +#endif + } + FINISH(3); +OP_END + +/* File: c/OP_IPUT_OBJECT_VOLATILE.c */ +HANDLE_IPUT_X(OP_IPUT_OBJECT_VOLATILE, "-object-volatile", ObjectVolatile, _AS_OBJECT) +OP_END + +/* File: c/OP_SGET_OBJECT_VOLATILE.c */ +HANDLE_SGET_X(OP_SGET_OBJECT_VOLATILE, "-object-volatile", ObjectVolatile, _AS_OBJECT) +OP_END + +/* File: c/OP_SPUT_OBJECT_VOLATILE.c */ +HANDLE_SPUT_X(OP_SPUT_OBJECT_VOLATILE, "-object-volatile", ObjectVolatile, _AS_OBJECT) +OP_END + +/* File: c/gotoTargets.c */ +/* + * C footer. This has some common code shared by the various targets. + */ + +/* + * Everything from here on is a "goto target". In the basic interpreter + * we jump into these targets and then jump directly to the handler for + * next instruction. Here, these are subroutines that return to the caller. + */ + +GOTO_TARGET(filledNewArray, bool methodCallRange) + { + ClassObject* arrayClass; + ArrayObject* newArray; + u4* contents; + char typeCh; + int i; + u4 arg5; + + EXPORT_PC(); + + ref = FETCH(1); /* class ref */ + vdst = FETCH(2); /* first 4 regs -or- range base */ + + if (methodCallRange) { + vsrc1 = INST_AA(inst); /* #of elements */ + arg5 = -1; /* silence compiler warning */ + ILOGV("|filled-new-array-range args=%d @0x%04x {regs=v%d-v%d}", + vsrc1, ref, vdst, vdst+vsrc1-1); + } else { + arg5 = INST_A(inst); + vsrc1 = INST_B(inst); /* #of elements */ + ILOGV("|filled-new-array args=%d @0x%04x {regs=0x%04x %x}", + vsrc1, ref, vdst, arg5); + } + + /* + * Resolve the array class. + */ + arrayClass = dvmDexGetResolvedClass(methodClassDex, ref); + if (arrayClass == NULL) { + arrayClass = dvmResolveClass(curMethod->clazz, ref, false); + if (arrayClass == NULL) + GOTO_exceptionThrown(); + } + /* + if (!dvmIsArrayClass(arrayClass)) { + dvmThrowException("Ljava/lang/RuntimeError;", + "filled-new-array needs array class"); + GOTO_exceptionThrown(); + } + */ + /* verifier guarantees this is an array class */ + assert(dvmIsArrayClass(arrayClass)); + assert(dvmIsClassInitialized(arrayClass)); + + /* + * Create an array of the specified type. + */ + LOGVV("+++ filled-new-array type is '%s'\n", arrayClass->descriptor); + typeCh = arrayClass->descriptor[1]; + if (typeCh == 'D' || typeCh == 'J') { + /* category 2 primitives not allowed */ + dvmThrowException("Ljava/lang/RuntimeError;", + "bad filled array req"); + GOTO_exceptionThrown(); + } else if (typeCh != 'L' && typeCh != '[' && typeCh != 'I') { + /* TODO: requires multiple "fill in" loops with different widths */ + LOGE("non-int primitives not implemented\n"); + dvmThrowException("Ljava/lang/InternalError;", + "filled-new-array not implemented for anything but 'int'"); + GOTO_exceptionThrown(); + } + + newArray = dvmAllocArrayByClass(arrayClass, vsrc1, ALLOC_DONT_TRACK); + if (newArray == NULL) + GOTO_exceptionThrown(); + + /* + * Fill in the elements. It's legal for vsrc1 to be zero. + */ + contents = (u4*) newArray->contents; + if (methodCallRange) { + for (i = 0; i < vsrc1; i++) + contents[i] = GET_REGISTER(vdst+i); + } else { + assert(vsrc1 <= 5); + if (vsrc1 == 5) { + contents[4] = GET_REGISTER(arg5); + vsrc1--; + } + for (i = 0; i < vsrc1; i++) { + contents[i] = GET_REGISTER(vdst & 0x0f); + vdst >>= 4; + } + } + if (typeCh == 'L' || typeCh == '[') { + dvmWriteBarrierArray(newArray, 0, newArray->length); + } + + retval.l = newArray; + } + FINISH(3); +GOTO_TARGET_END + + +GOTO_TARGET(invokeVirtual, bool methodCallRange) + { + Method* baseMethod; + Object* thisPtr; + + EXPORT_PC(); + + vsrc1 = INST_AA(inst); /* AA (count) or BA (count + arg 5) */ + ref = FETCH(1); /* method ref */ + vdst = FETCH(2); /* 4 regs -or- first reg */ + + /* + * The object against which we are executing a method is always + * in the first argument. + */ + if (methodCallRange) { + assert(vsrc1 > 0); + ILOGV("|invoke-virtual-range args=%d @0x%04x {regs=v%d-v%d}", + vsrc1, ref, vdst, vdst+vsrc1-1); + thisPtr = (Object*) GET_REGISTER(vdst); + } else { + assert((vsrc1>>4) > 0); + ILOGV("|invoke-virtual args=%d @0x%04x {regs=0x%04x %x}", + vsrc1 >> 4, ref, vdst, vsrc1 & 0x0f); + thisPtr = (Object*) GET_REGISTER(vdst & 0x0f); + } + + if (!checkForNull(thisPtr)) + GOTO_exceptionThrown(); + + /* + * Resolve the method. This is the correct method for the static + * type of the object. We also verify access permissions here. + */ + baseMethod = dvmDexGetResolvedMethod(methodClassDex, ref); + if (baseMethod == NULL) { + baseMethod = dvmResolveMethod(curMethod->clazz, ref,METHOD_VIRTUAL); + if (baseMethod == NULL) { + ILOGV("+ unknown method or access denied\n"); + GOTO_exceptionThrown(); + } + } + + /* + * Combine the object we found with the vtable offset in the + * method. + */ + assert(baseMethod->methodIndex < thisPtr->clazz->vtableCount); + methodToCall = thisPtr->clazz->vtable[baseMethod->methodIndex]; + +#if defined(WITH_JIT) && (INTERP_TYPE == INTERP_DBG) + callsiteClass = thisPtr->clazz; +#endif + +#if 0 + if (dvmIsAbstractMethod(methodToCall)) { + /* + * This can happen if you create two classes, Base and Sub, where + * Sub is a sub-class of Base. Declare a protected abstract + * method foo() in Base, and invoke foo() from a method in Base. + * Base is an "abstract base class" and is never instantiated + * directly. Now, Override foo() in Sub, and use Sub. This + * Works fine unless Sub stops providing an implementation of + * the method. + */ + dvmThrowException("Ljava/lang/AbstractMethodError;", + "abstract method not implemented"); + GOTO_exceptionThrown(); + } +#else + assert(!dvmIsAbstractMethod(methodToCall) || + methodToCall->nativeFunc != NULL); +#endif + + LOGVV("+++ base=%s.%s virtual[%d]=%s.%s\n", + baseMethod->clazz->descriptor, baseMethod->name, + (u4) baseMethod->methodIndex, + methodToCall->clazz->descriptor, methodToCall->name); + assert(methodToCall != NULL); + +#if 0 + if (vsrc1 != methodToCall->insSize) { + LOGW("WRONG METHOD: base=%s.%s virtual[%d]=%s.%s\n", + baseMethod->clazz->descriptor, baseMethod->name, + (u4) baseMethod->methodIndex, + methodToCall->clazz->descriptor, methodToCall->name); + //dvmDumpClass(baseMethod->clazz); + //dvmDumpClass(methodToCall->clazz); + dvmDumpAllClasses(0); + } +#endif + + GOTO_invokeMethod(methodCallRange, methodToCall, vsrc1, vdst); + } +GOTO_TARGET_END + +GOTO_TARGET(invokeSuper, bool methodCallRange) + { + Method* baseMethod; + u2 thisReg; + + EXPORT_PC(); + + vsrc1 = INST_AA(inst); /* AA (count) or BA (count + arg 5) */ + ref = FETCH(1); /* method ref */ + vdst = FETCH(2); /* 4 regs -or- first reg */ + + if (methodCallRange) { + ILOGV("|invoke-super-range args=%d @0x%04x {regs=v%d-v%d}", + vsrc1, ref, vdst, vdst+vsrc1-1); + thisReg = vdst; + } else { + ILOGV("|invoke-super args=%d @0x%04x {regs=0x%04x %x}", + vsrc1 >> 4, ref, vdst, vsrc1 & 0x0f); + thisReg = vdst & 0x0f; + } + /* impossible in well-formed code, but we must check nevertheless */ + if (!checkForNull((Object*) GET_REGISTER(thisReg))) + GOTO_exceptionThrown(); + + /* + * Resolve the method. This is the correct method for the static + * type of the object. We also verify access permissions here. + * The first arg to dvmResolveMethod() is just the referring class + * (used for class loaders and such), so we don't want to pass + * the superclass into the resolution call. + */ + baseMethod = dvmDexGetResolvedMethod(methodClassDex, ref); + if (baseMethod == NULL) { + baseMethod = dvmResolveMethod(curMethod->clazz, ref,METHOD_VIRTUAL); + if (baseMethod == NULL) { + ILOGV("+ unknown method or access denied\n"); + GOTO_exceptionThrown(); + } + } + + /* + * Combine the object we found with the vtable offset in the + * method's class. + * + * We're using the current method's class' superclass, not the + * superclass of "this". This is because we might be executing + * in a method inherited from a superclass, and we want to run + * in that class' superclass. + */ + if (baseMethod->methodIndex >= curMethod->clazz->super->vtableCount) { + /* + * Method does not exist in the superclass. Could happen if + * superclass gets updated. + */ + dvmThrowException("Ljava/lang/NoSuchMethodError;", + baseMethod->name); + GOTO_exceptionThrown(); + } + methodToCall = curMethod->clazz->super->vtable[baseMethod->methodIndex]; +#if 0 + if (dvmIsAbstractMethod(methodToCall)) { + dvmThrowException("Ljava/lang/AbstractMethodError;", + "abstract method not implemented"); + GOTO_exceptionThrown(); + } +#else + assert(!dvmIsAbstractMethod(methodToCall) || + methodToCall->nativeFunc != NULL); +#endif + LOGVV("+++ base=%s.%s super-virtual=%s.%s\n", + baseMethod->clazz->descriptor, baseMethod->name, + methodToCall->clazz->descriptor, methodToCall->name); + assert(methodToCall != NULL); + + GOTO_invokeMethod(methodCallRange, methodToCall, vsrc1, vdst); + } +GOTO_TARGET_END + +GOTO_TARGET(invokeInterface, bool methodCallRange) + { + Object* thisPtr; + ClassObject* thisClass; + + EXPORT_PC(); + + vsrc1 = INST_AA(inst); /* AA (count) or BA (count + arg 5) */ + ref = FETCH(1); /* method ref */ + vdst = FETCH(2); /* 4 regs -or- first reg */ + + /* + * The object against which we are executing a method is always + * in the first argument. + */ + if (methodCallRange) { + assert(vsrc1 > 0); + ILOGV("|invoke-interface-range args=%d @0x%04x {regs=v%d-v%d}", + vsrc1, ref, vdst, vdst+vsrc1-1); + thisPtr = (Object*) GET_REGISTER(vdst); + } else { + assert((vsrc1>>4) > 0); + ILOGV("|invoke-interface args=%d @0x%04x {regs=0x%04x %x}", + vsrc1 >> 4, ref, vdst, vsrc1 & 0x0f); + thisPtr = (Object*) GET_REGISTER(vdst & 0x0f); + } + if (!checkForNull(thisPtr)) + GOTO_exceptionThrown(); + + thisClass = thisPtr->clazz; + +#if defined(WITH_JIT) && (INTERP_TYPE == INTERP_DBG) + callsiteClass = thisClass; +#endif + + /* + * Given a class and a method index, find the Method* with the + * actual code we want to execute. + */ + methodToCall = dvmFindInterfaceMethodInCache(thisClass, ref, curMethod, + methodClassDex); + if (methodToCall == NULL) { + assert(dvmCheckException(self)); + GOTO_exceptionThrown(); + } + + GOTO_invokeMethod(methodCallRange, methodToCall, vsrc1, vdst); + } +GOTO_TARGET_END + +GOTO_TARGET(invokeDirect, bool methodCallRange) + { + u2 thisReg; + + vsrc1 = INST_AA(inst); /* AA (count) or BA (count + arg 5) */ + ref = FETCH(1); /* method ref */ + vdst = FETCH(2); /* 4 regs -or- first reg */ + + EXPORT_PC(); + + if (methodCallRange) { + ILOGV("|invoke-direct-range args=%d @0x%04x {regs=v%d-v%d}", + vsrc1, ref, vdst, vdst+vsrc1-1); + thisReg = vdst; + } else { + ILOGV("|invoke-direct args=%d @0x%04x {regs=0x%04x %x}", + vsrc1 >> 4, ref, vdst, vsrc1 & 0x0f); + thisReg = vdst & 0x0f; + } + if (!checkForNull((Object*) GET_REGISTER(thisReg))) + GOTO_exceptionThrown(); + + methodToCall = dvmDexGetResolvedMethod(methodClassDex, ref); + if (methodToCall == NULL) { + methodToCall = dvmResolveMethod(curMethod->clazz, ref, + METHOD_DIRECT); + if (methodToCall == NULL) { + ILOGV("+ unknown direct method\n"); // should be impossible + GOTO_exceptionThrown(); + } + } + GOTO_invokeMethod(methodCallRange, methodToCall, vsrc1, vdst); + } +GOTO_TARGET_END + +GOTO_TARGET(invokeStatic, bool methodCallRange) + vsrc1 = INST_AA(inst); /* AA (count) or BA (count + arg 5) */ + ref = FETCH(1); /* method ref */ + vdst = FETCH(2); /* 4 regs -or- first reg */ + + EXPORT_PC(); + + if (methodCallRange) + ILOGV("|invoke-static-range args=%d @0x%04x {regs=v%d-v%d}", + vsrc1, ref, vdst, vdst+vsrc1-1); + else + ILOGV("|invoke-static args=%d @0x%04x {regs=0x%04x %x}", + vsrc1 >> 4, ref, vdst, vsrc1 & 0x0f); + + methodToCall = dvmDexGetResolvedMethod(methodClassDex, ref); + if (methodToCall == NULL) { + methodToCall = dvmResolveMethod(curMethod->clazz, ref, METHOD_STATIC); + if (methodToCall == NULL) { + ILOGV("+ unknown method\n"); + GOTO_exceptionThrown(); + } + + /* + * The JIT needs dvmDexGetResolvedMethod() to return non-null. + * Since we use the portable interpreter to build the trace, this extra + * check is not needed for mterp. + */ + if (dvmDexGetResolvedMethod(methodClassDex, ref) == NULL) { + /* Class initialization is still ongoing */ + ABORT_JIT_TSELECT(); + } + } + GOTO_invokeMethod(methodCallRange, methodToCall, vsrc1, vdst); +GOTO_TARGET_END + +GOTO_TARGET(invokeVirtualQuick, bool methodCallRange) + { + Object* thisPtr; + + EXPORT_PC(); + + vsrc1 = INST_AA(inst); /* AA (count) or BA (count + arg 5) */ + ref = FETCH(1); /* vtable index */ + vdst = FETCH(2); /* 4 regs -or- first reg */ + + /* + * The object against which we are executing a method is always + * in the first argument. + */ + if (methodCallRange) { + assert(vsrc1 > 0); + ILOGV("|invoke-virtual-quick-range args=%d @0x%04x {regs=v%d-v%d}", + vsrc1, ref, vdst, vdst+vsrc1-1); + thisPtr = (Object*) GET_REGISTER(vdst); + } else { + assert((vsrc1>>4) > 0); + ILOGV("|invoke-virtual-quick args=%d @0x%04x {regs=0x%04x %x}", + vsrc1 >> 4, ref, vdst, vsrc1 & 0x0f); + thisPtr = (Object*) GET_REGISTER(vdst & 0x0f); + } + + if (!checkForNull(thisPtr)) + GOTO_exceptionThrown(); + +#if defined(WITH_JIT) && (INTERP_TYPE == INTERP_DBG) + callsiteClass = thisPtr->clazz; +#endif + + /* + * Combine the object we found with the vtable offset in the + * method. + */ + assert(ref < thisPtr->clazz->vtableCount); + methodToCall = thisPtr->clazz->vtable[ref]; + +#if 0 + if (dvmIsAbstractMethod(methodToCall)) { + dvmThrowException("Ljava/lang/AbstractMethodError;", + "abstract method not implemented"); + GOTO_exceptionThrown(); + } +#else + assert(!dvmIsAbstractMethod(methodToCall) || + methodToCall->nativeFunc != NULL); +#endif + + LOGVV("+++ virtual[%d]=%s.%s\n", + ref, methodToCall->clazz->descriptor, methodToCall->name); + assert(methodToCall != NULL); + + GOTO_invokeMethod(methodCallRange, methodToCall, vsrc1, vdst); + } +GOTO_TARGET_END + +GOTO_TARGET(invokeSuperQuick, bool methodCallRange) + { + u2 thisReg; + + EXPORT_PC(); + + vsrc1 = INST_AA(inst); /* AA (count) or BA (count + arg 5) */ + ref = FETCH(1); /* vtable index */ + vdst = FETCH(2); /* 4 regs -or- first reg */ + + if (methodCallRange) { + ILOGV("|invoke-super-quick-range args=%d @0x%04x {regs=v%d-v%d}", + vsrc1, ref, vdst, vdst+vsrc1-1); + thisReg = vdst; + } else { + ILOGV("|invoke-super-quick args=%d @0x%04x {regs=0x%04x %x}", + vsrc1 >> 4, ref, vdst, vsrc1 & 0x0f); + thisReg = vdst & 0x0f; + } + /* impossible in well-formed code, but we must check nevertheless */ + if (!checkForNull((Object*) GET_REGISTER(thisReg))) + GOTO_exceptionThrown(); + +#if 0 /* impossible in optimized + verified code */ + if (ref >= curMethod->clazz->super->vtableCount) { + dvmThrowException("Ljava/lang/NoSuchMethodError;", NULL); + GOTO_exceptionThrown(); + } +#else + assert(ref < curMethod->clazz->super->vtableCount); +#endif + + /* + * Combine the object we found with the vtable offset in the + * method's class. + * + * We're using the current method's class' superclass, not the + * superclass of "this". This is because we might be executing + * in a method inherited from a superclass, and we want to run + * in the method's class' superclass. + */ + methodToCall = curMethod->clazz->super->vtable[ref]; + +#if 0 + if (dvmIsAbstractMethod(methodToCall)) { + dvmThrowException("Ljava/lang/AbstractMethodError;", + "abstract method not implemented"); + GOTO_exceptionThrown(); + } +#else + assert(!dvmIsAbstractMethod(methodToCall) || + methodToCall->nativeFunc != NULL); +#endif + LOGVV("+++ super-virtual[%d]=%s.%s\n", + ref, methodToCall->clazz->descriptor, methodToCall->name); + assert(methodToCall != NULL); + + GOTO_invokeMethod(methodCallRange, methodToCall, vsrc1, vdst); + } +GOTO_TARGET_END + + + /* + * General handling for return-void, return, and return-wide. Put the + * return value in "retval" before jumping here. + */ +GOTO_TARGET(returnFromMethod) + { + StackSaveArea* saveArea; + + /* + * We must do this BEFORE we pop the previous stack frame off, so + * that the GC can see the return value (if any) in the local vars. + * + * Since this is now an interpreter switch point, we must do it before + * we do anything at all. + */ + PERIODIC_CHECKS(kInterpEntryReturn, 0); + + ILOGV("> retval=0x%llx (leaving %s.%s %s)", + retval.j, curMethod->clazz->descriptor, curMethod->name, + curMethod->shorty); + //DUMP_REGS(curMethod, fp); + + saveArea = SAVEAREA_FROM_FP(fp); + +#ifdef EASY_GDB + debugSaveArea = saveArea; +#endif +#if (INTERP_TYPE == INTERP_DBG) + TRACE_METHOD_EXIT(self, curMethod); +#endif + + /* back up to previous frame and see if we hit a break */ + fp = saveArea->prevFrame; + assert(fp != NULL); + if (dvmIsBreakFrame(fp)) { + /* bail without popping the method frame from stack */ + LOGVV("+++ returned into break frame\n"); +#if defined(WITH_JIT) + /* Let the Jit know the return is terminating normally */ + CHECK_JIT_VOID(); +#endif + GOTO_bail(); + } + + /* update thread FP, and reset local variables */ + self->curFrame = fp; + curMethod = SAVEAREA_FROM_FP(fp)->method; + //methodClass = curMethod->clazz; + methodClassDex = curMethod->clazz->pDvmDex; + pc = saveArea->savedPc; + ILOGD("> (return to %s.%s %s)", curMethod->clazz->descriptor, + curMethod->name, curMethod->shorty); + + /* use FINISH on the caller's invoke instruction */ + //u2 invokeInstr = INST_INST(FETCH(0)); + if (true /*invokeInstr >= OP_INVOKE_VIRTUAL && + invokeInstr <= OP_INVOKE_INTERFACE*/) + { + FINISH(3); + } else { + //LOGE("Unknown invoke instr %02x at %d\n", + // invokeInstr, (int) (pc - curMethod->insns)); + assert(false); + } + } +GOTO_TARGET_END + + + /* + * Jump here when the code throws an exception. + * + * By the time we get here, the Throwable has been created and the stack + * trace has been saved off. + */ +GOTO_TARGET(exceptionThrown) + { + Object* exception; + int catchRelPc; + + /* + * Since this is now an interpreter switch point, we must do it before + * we do anything at all. + */ + PERIODIC_CHECKS(kInterpEntryThrow, 0); + +#if defined(WITH_JIT) + // Something threw during trace selection - abort the current trace + ABORT_JIT_TSELECT(); +#endif + /* + * We save off the exception and clear the exception status. While + * processing the exception we might need to load some Throwable + * classes, and we don't want class loader exceptions to get + * confused with this one. + */ + assert(dvmCheckException(self)); + exception = dvmGetException(self); + dvmAddTrackedAlloc(exception, self); + dvmClearException(self); + + LOGV("Handling exception %s at %s:%d\n", + exception->clazz->descriptor, curMethod->name, + dvmLineNumFromPC(curMethod, pc - curMethod->insns)); + +#if (INTERP_TYPE == INTERP_DBG) + /* + * Tell the debugger about it. + * + * TODO: if the exception was thrown by interpreted code, control + * fell through native, and then back to us, we will report the + * exception at the point of the throw and again here. We can avoid + * this by not reporting exceptions when we jump here directly from + * the native call code above, but then we won't report exceptions + * that were thrown *from* the JNI code (as opposed to *through* it). + * + * The correct solution is probably to ignore from-native exceptions + * here, and have the JNI exception code do the reporting to the + * debugger. + */ + if (gDvm.debuggerActive) { + void* catchFrame; + catchRelPc = dvmFindCatchBlock(self, pc - curMethod->insns, + exception, true, &catchFrame); + dvmDbgPostException(fp, pc - curMethod->insns, catchFrame, + catchRelPc, exception); + } +#endif + + /* + * We need to unroll to the catch block or the nearest "break" + * frame. + * + * A break frame could indicate that we have reached an intermediate + * native call, or have gone off the top of the stack and the thread + * needs to exit. Either way, we return from here, leaving the + * exception raised. + * + * If we do find a catch block, we want to transfer execution to + * that point. + * + * Note this can cause an exception while resolving classes in + * the "catch" blocks. + */ + catchRelPc = dvmFindCatchBlock(self, pc - curMethod->insns, + exception, false, (void*)&fp); + + /* + * Restore the stack bounds after an overflow. This isn't going to + * be correct in all circumstances, e.g. if JNI code devours the + * exception this won't happen until some other exception gets + * thrown. If the code keeps pushing the stack bounds we'll end + * up aborting the VM. + * + * Note we want to do this *after* the call to dvmFindCatchBlock, + * because that may need extra stack space to resolve exception + * classes (e.g. through a class loader). + * + * It's possible for the stack overflow handling to cause an + * exception (specifically, class resolution in a "catch" block + * during the call above), so we could see the thread's overflow + * flag raised but actually be running in a "nested" interpreter + * frame. We don't allow doubled-up StackOverflowErrors, so + * we can check for this by just looking at the exception type + * in the cleanup function. Also, we won't unroll past the SOE + * point because the more-recent exception will hit a break frame + * as it unrolls to here. + */ + if (self->stackOverflowed) + dvmCleanupStackOverflow(self, exception); + + if (catchRelPc < 0) { + /* falling through to JNI code or off the bottom of the stack */ +#if DVM_SHOW_EXCEPTION >= 2 + LOGD("Exception %s from %s:%d not caught locally\n", + exception->clazz->descriptor, dvmGetMethodSourceFile(curMethod), + dvmLineNumFromPC(curMethod, pc - curMethod->insns)); +#endif + dvmSetException(self, exception); + dvmReleaseTrackedAlloc(exception, self); + GOTO_bail(); + } + +#if DVM_SHOW_EXCEPTION >= 3 + { + const Method* catchMethod = SAVEAREA_FROM_FP(fp)->method; + LOGD("Exception %s thrown from %s:%d to %s:%d\n", + exception->clazz->descriptor, dvmGetMethodSourceFile(curMethod), + dvmLineNumFromPC(curMethod, pc - curMethod->insns), + dvmGetMethodSourceFile(catchMethod), + dvmLineNumFromPC(catchMethod, catchRelPc)); + } +#endif + + /* + * Adjust local variables to match self->curFrame and the + * updated PC. + */ + //fp = (u4*) self->curFrame; + curMethod = SAVEAREA_FROM_FP(fp)->method; + //methodClass = curMethod->clazz; + methodClassDex = curMethod->clazz->pDvmDex; + pc = curMethod->insns + catchRelPc; + ILOGV("> pc <-- %s.%s %s", curMethod->clazz->descriptor, + curMethod->name, curMethod->shorty); + DUMP_REGS(curMethod, fp, false); // show all regs + + /* + * Restore the exception if the handler wants it. + * + * The Dalvik spec mandates that, if an exception handler wants to + * do something with the exception, the first instruction executed + * must be "move-exception". We can pass the exception along + * through the thread struct, and let the move-exception instruction + * clear it for us. + * + * If the handler doesn't call move-exception, we don't want to + * finish here with an exception still pending. + */ + if (INST_INST(FETCH(0)) == OP_MOVE_EXCEPTION) + dvmSetException(self, exception); + + dvmReleaseTrackedAlloc(exception, self); + FINISH(0); + } +GOTO_TARGET_END + + + + /* + * General handling for invoke-{virtual,super,direct,static,interface}, + * including "quick" variants. + * + * Set "methodToCall" to the Method we're calling, and "methodCallRange" + * depending on whether this is a "/range" instruction. + * + * For a range call: + * "vsrc1" holds the argument count (8 bits) + * "vdst" holds the first argument in the range + * For a non-range call: + * "vsrc1" holds the argument count (4 bits) and the 5th argument index + * "vdst" holds four 4-bit register indices + * + * The caller must EXPORT_PC before jumping here, because any method + * call can throw a stack overflow exception. + */ +GOTO_TARGET(invokeMethod, bool methodCallRange, const Method* _methodToCall, + u2 count, u2 regs) + { + STUB_HACK(vsrc1 = count; vdst = regs; methodToCall = _methodToCall;); + + //printf("range=%d call=%p count=%d regs=0x%04x\n", + // methodCallRange, methodToCall, count, regs); + //printf(" --> %s.%s %s\n", methodToCall->clazz->descriptor, + // methodToCall->name, methodToCall->shorty); + + u4* outs; + int i; + + /* + * Copy args. This may corrupt vsrc1/vdst. + */ + if (methodCallRange) { + // could use memcpy or a "Duff's device"; most functions have + // so few args it won't matter much + assert(vsrc1 <= curMethod->outsSize); + assert(vsrc1 == methodToCall->insSize); + outs = OUTS_FROM_FP(fp, vsrc1); + for (i = 0; i < vsrc1; i++) + outs[i] = GET_REGISTER(vdst+i); + } else { + u4 count = vsrc1 >> 4; + + assert(count <= curMethod->outsSize); + assert(count == methodToCall->insSize); + assert(count <= 5); + + outs = OUTS_FROM_FP(fp, count); +#if 0 + if (count == 5) { + outs[4] = GET_REGISTER(vsrc1 & 0x0f); + count--; + } + for (i = 0; i < (int) count; i++) { + outs[i] = GET_REGISTER(vdst & 0x0f); + vdst >>= 4; + } +#else + // This version executes fewer instructions but is larger + // overall. Seems to be a teensy bit faster. + assert((vdst >> 16) == 0); // 16 bits -or- high 16 bits clear + switch (count) { + case 5: + outs[4] = GET_REGISTER(vsrc1 & 0x0f); + case 4: + outs[3] = GET_REGISTER(vdst >> 12); + case 3: + outs[2] = GET_REGISTER((vdst & 0x0f00) >> 8); + case 2: + outs[1] = GET_REGISTER((vdst & 0x00f0) >> 4); + case 1: + outs[0] = GET_REGISTER(vdst & 0x0f); + default: + ; + } +#endif + } + } + + /* + * (This was originally a "goto" target; I've kept it separate from the + * stuff above in case we want to refactor things again.) + * + * At this point, we have the arguments stored in the "outs" area of + * the current method's stack frame, and the method to call in + * "methodToCall". Push a new stack frame. + */ + { + StackSaveArea* newSaveArea; + u4* newFp; + + ILOGV("> %s%s.%s %s", + dvmIsNativeMethod(methodToCall) ? "(NATIVE) " : "", + methodToCall->clazz->descriptor, methodToCall->name, + methodToCall->shorty); + + newFp = (u4*) SAVEAREA_FROM_FP(fp) - methodToCall->registersSize; + newSaveArea = SAVEAREA_FROM_FP(newFp); + + /* verify that we have enough space */ + if (true) { + u1* bottom; + bottom = (u1*) newSaveArea - methodToCall->outsSize * sizeof(u4); + if (bottom < self->interpStackEnd) { + /* stack overflow */ + LOGV("Stack overflow on method call (start=%p end=%p newBot=%p(%d) size=%d '%s')\n", + self->interpStackStart, self->interpStackEnd, bottom, + (u1*) fp - bottom, self->interpStackSize, + methodToCall->name); + dvmHandleStackOverflow(self, methodToCall); + assert(dvmCheckException(self)); + GOTO_exceptionThrown(); + } + //LOGD("+++ fp=%p newFp=%p newSave=%p bottom=%p\n", + // fp, newFp, newSaveArea, bottom); + } + +#ifdef LOG_INSTR + if (methodToCall->registersSize > methodToCall->insSize) { + /* + * This makes valgrind quiet when we print registers that + * haven't been initialized. Turn it off when the debug + * messages are disabled -- we want valgrind to report any + * used-before-initialized issues. + */ + memset(newFp, 0xcc, + (methodToCall->registersSize - methodToCall->insSize) * 4); + } +#endif + +#ifdef EASY_GDB + newSaveArea->prevSave = SAVEAREA_FROM_FP(fp); +#endif + newSaveArea->prevFrame = fp; + newSaveArea->savedPc = pc; +#if defined(WITH_JIT) + newSaveArea->returnAddr = 0; +#endif + newSaveArea->method = methodToCall; + + if (!dvmIsNativeMethod(methodToCall)) { + /* + * "Call" interpreted code. Reposition the PC, update the + * frame pointer and other local state, and continue. + */ + curMethod = methodToCall; + methodClassDex = curMethod->clazz->pDvmDex; + pc = methodToCall->insns; + fp = self->curFrame = newFp; +#ifdef EASY_GDB + debugSaveArea = SAVEAREA_FROM_FP(newFp); +#endif +#if INTERP_TYPE == INTERP_DBG + debugIsMethodEntry = true; // profiling, debugging +#endif + ILOGD("> pc <-- %s.%s %s", curMethod->clazz->descriptor, + curMethod->name, curMethod->shorty); + DUMP_REGS(curMethod, fp, true); // show input args + FINISH(0); // jump to method start + } else { + /* set this up for JNI locals, even if not a JNI native */ +#ifdef USE_INDIRECT_REF + newSaveArea->xtra.localRefCookie = self->jniLocalRefTable.segmentState.all; +#else + newSaveArea->xtra.localRefCookie = self->jniLocalRefTable.nextEntry; +#endif + + self->curFrame = newFp; + + DUMP_REGS(methodToCall, newFp, true); // show input args + +#if (INTERP_TYPE == INTERP_DBG) + if (gDvm.debuggerActive) { + dvmDbgPostLocationEvent(methodToCall, -1, + dvmGetThisPtr(curMethod, fp), DBG_METHOD_ENTRY); + } +#endif +#if (INTERP_TYPE == INTERP_DBG) + TRACE_METHOD_ENTER(self, methodToCall); +#endif + + { + ILOGD("> native <-- %s.%s %s", methodToCall->clazz->descriptor, + methodToCall->name, methodToCall->shorty); + } + +#if defined(WITH_JIT) + /* Allow the Jit to end any pending trace building */ + CHECK_JIT_VOID(); +#endif + + /* + * Jump through native call bridge. Because we leave no + * space for locals on native calls, "newFp" points directly + * to the method arguments. + */ + (*methodToCall->nativeFunc)(newFp, &retval, methodToCall, self); + +#if (INTERP_TYPE == INTERP_DBG) + if (gDvm.debuggerActive) { + dvmDbgPostLocationEvent(methodToCall, -1, + dvmGetThisPtr(curMethod, fp), DBG_METHOD_EXIT); + } +#endif +#if (INTERP_TYPE == INTERP_DBG) + TRACE_METHOD_EXIT(self, methodToCall); +#endif + + /* pop frame off */ + dvmPopJniLocals(self, newSaveArea); + self->curFrame = fp; + + /* + * If the native code threw an exception, or interpreted code + * invoked by the native call threw one and nobody has cleared + * it, jump to our local exception handling. + */ + if (dvmCheckException(self)) { + LOGV("Exception thrown by/below native code\n"); + GOTO_exceptionThrown(); + } + + ILOGD("> retval=0x%llx (leaving native)", retval.j); + ILOGD("> (return from native %s.%s to %s.%s %s)", + methodToCall->clazz->descriptor, methodToCall->name, + curMethod->clazz->descriptor, curMethod->name, + curMethod->shorty); + + //u2 invokeInstr = INST_INST(FETCH(0)); + if (true /*invokeInstr >= OP_INVOKE_VIRTUAL && + invokeInstr <= OP_INVOKE_INTERFACE*/) + { + FINISH(3); + } else { + //LOGE("Unknown invoke instr %02x at %d\n", + // invokeInstr, (int) (pc - curMethod->insns)); + assert(false); + } + } + } + assert(false); // should not get here +GOTO_TARGET_END + +/* File: cstubs/enddefs.c */ + +/* undefine "magic" name remapping */ +#undef retval +#undef pc +#undef fp +#undef curMethod +#undef methodClassDex +#undef self +#undef debugTrackedRefStart + |