| /* |
| * Copyright (C) 2009 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. |
| */ |
| |
| #include "../../CompilerInternals.h" |
| #include "libdex/DexOpcodes.h" |
| #include "MipsLIR.h" |
| |
| /* For dumping instructions */ |
| #define MIPS_REG_COUNT 32 |
| static const char *mipsRegName[MIPS_REG_COUNT] = { |
| "zero", "at", "v0", "v1", "a0", "a1", "a2", "a3", |
| "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", |
| "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7", |
| "t8", "t9", "k0", "k1", "gp", "sp", "fp", "ra" |
| }; |
| |
| /* |
| * Interpret a format string and build a string no longer than size |
| * See format key in Assemble.c. |
| */ |
| static void buildInsnString(const char *fmt, MipsLIR *lir, char* buf, |
| unsigned char *baseAddr, int size) |
| { |
| int i; |
| char *bufEnd = &buf[size-1]; |
| const char *fmtEnd = &fmt[strlen(fmt)]; |
| char tbuf[256]; |
| char nc; |
| while (fmt < fmtEnd) { |
| int operand; |
| if (*fmt == '!') { |
| fmt++; |
| assert(fmt < fmtEnd); |
| nc = *fmt++; |
| if (nc=='!') { |
| strcpy(tbuf, "!"); |
| } else { |
| assert(fmt < fmtEnd); |
| assert((unsigned)(nc-'0') < 4); |
| operand = lir->operands[nc-'0']; |
| switch(*fmt++) { |
| case 'b': |
| strcpy(tbuf,"0000"); |
| for (i=3; i>= 0; i--) { |
| tbuf[i] += operand & 1; |
| operand >>= 1; |
| } |
| break; |
| case 's': |
| sprintf(tbuf,"$f%d",operand & FP_REG_MASK); |
| break; |
| case 'S': |
| assert(((operand & FP_REG_MASK) & 1) == 0); |
| sprintf(tbuf,"$f%d",operand & FP_REG_MASK); |
| break; |
| case 'h': |
| sprintf(tbuf,"%04x", operand); |
| break; |
| case 'M': |
| case 'd': |
| sprintf(tbuf,"%d", operand); |
| break; |
| case 'D': |
| sprintf(tbuf,"%d", operand+1); |
| break; |
| case 'E': |
| sprintf(tbuf,"%d", operand*4); |
| break; |
| case 'F': |
| sprintf(tbuf,"%d", operand*2); |
| break; |
| case 'c': |
| switch (operand) { |
| case kMipsCondEq: |
| strcpy(tbuf, "eq"); |
| break; |
| case kMipsCondNe: |
| strcpy(tbuf, "ne"); |
| break; |
| case kMipsCondLt: |
| strcpy(tbuf, "lt"); |
| break; |
| case kMipsCondGe: |
| strcpy(tbuf, "ge"); |
| break; |
| case kMipsCondGt: |
| strcpy(tbuf, "gt"); |
| break; |
| case kMipsCondLe: |
| strcpy(tbuf, "le"); |
| break; |
| case kMipsCondCs: |
| strcpy(tbuf, "cs"); |
| break; |
| case kMipsCondMi: |
| strcpy(tbuf, "mi"); |
| break; |
| default: |
| strcpy(tbuf, ""); |
| break; |
| } |
| break; |
| case 't': |
| sprintf(tbuf,"0x%08x (L%p)", |
| (int) baseAddr + lir->generic.offset + 4 + |
| (operand << 2), |
| lir->generic.target); |
| break; |
| case 'T': |
| sprintf(tbuf,"0x%08x", |
| (int) (operand << 2)); |
| break; |
| case 'u': { |
| int offset_1 = lir->operands[0]; |
| int offset_2 = NEXT_LIR(lir)->operands[0]; |
| intptr_t target = |
| ((((intptr_t) baseAddr + lir->generic.offset + 4) & |
| ~3) + (offset_1 << 21 >> 9) + (offset_2 << 1)) & |
| 0xfffffffc; |
| sprintf(tbuf, "%p", (void *) target); |
| break; |
| } |
| |
| /* Nothing to print for BLX_2 */ |
| case 'v': |
| strcpy(tbuf, "see above"); |
| break; |
| case 'r': |
| assert(operand >= 0 && operand < MIPS_REG_COUNT); |
| strcpy(tbuf, mipsRegName[operand]); |
| break; |
| default: |
| strcpy(tbuf,"DecodeError"); |
| break; |
| } |
| if (buf+strlen(tbuf) <= bufEnd) { |
| strcpy(buf, tbuf); |
| buf += strlen(tbuf); |
| } else { |
| break; |
| } |
| } |
| } else { |
| *buf++ = *fmt++; |
| } |
| if (buf == bufEnd) |
| break; |
| } |
| *buf = 0; |
| } |
| |
| void dvmDumpResourceMask(LIR *lir, u8 mask, const char *prefix) |
| { |
| char buf[256]; |
| buf[0] = 0; |
| MipsLIR *mipsLIR = (MipsLIR *) lir; |
| |
| if (mask == ENCODE_ALL) { |
| strcpy(buf, "all"); |
| } else { |
| char num[8]; |
| int i; |
| |
| for (i = 0; i < kRegEnd; i++) { |
| if (mask & (1ULL << i)) { |
| sprintf(num, "%d ", i); |
| strcat(buf, num); |
| } |
| } |
| |
| if (mask & ENCODE_CCODE) { |
| strcat(buf, "cc "); |
| } |
| if (mask & ENCODE_FP_STATUS) { |
| strcat(buf, "fpcc "); |
| } |
| /* Memory bits */ |
| if (mipsLIR && (mask & ENCODE_DALVIK_REG)) { |
| sprintf(buf + strlen(buf), "dr%d%s", mipsLIR->aliasInfo & 0xffff, |
| (mipsLIR->aliasInfo & 0x80000000) ? "(+1)" : ""); |
| } |
| if (mask & ENCODE_LITERAL) { |
| strcat(buf, "lit "); |
| } |
| |
| if (mask & ENCODE_HEAP_REF) { |
| strcat(buf, "heap "); |
| } |
| if (mask & ENCODE_MUST_NOT_ALIAS) { |
| strcat(buf, "noalias "); |
| } |
| } |
| if (buf[0]) { |
| ALOGD("%s: %s", prefix, buf); |
| } |
| } |
| |
| /* |
| * Debugging macros |
| */ |
| #define DUMP_RESOURCE_MASK(X) |
| #define DUMP_SSA_REP(X) |
| |
| /* Pretty-print a LIR instruction */ |
| void dvmDumpLIRInsn(LIR *arg, unsigned char *baseAddr) |
| { |
| MipsLIR *lir = (MipsLIR *) arg; |
| char buf[256]; |
| char opName[256]; |
| int offset = lir->generic.offset; |
| int dest = lir->operands[0]; |
| const bool dumpNop = false; |
| |
| /* Handle pseudo-ops individually, and all regular insns as a group */ |
| switch(lir->opcode) { |
| case kMipsChainingCellBottom: |
| ALOGD("-------- end of chaining cells (0x%04x)", offset); |
| break; |
| case kMipsPseudoBarrier: |
| ALOGD("-------- BARRIER"); |
| break; |
| case kMipsPseudoExtended: |
| /* intentional fallthrough */ |
| case kMipsPseudoSSARep: |
| DUMP_SSA_REP(ALOGD("-------- %s", (char *) dest)); |
| break; |
| case kMipsPseudoChainingCellBackwardBranch: |
| ALOGD("L%p:", lir); |
| ALOGD("-------- chaining cell (backward branch): 0x%04x", dest); |
| break; |
| case kMipsPseudoChainingCellNormal: |
| ALOGD("L%p:", lir); |
| ALOGD("-------- chaining cell (normal): 0x%04x", dest); |
| break; |
| case kMipsPseudoChainingCellHot: |
| ALOGD("L%p:", lir); |
| ALOGD("-------- chaining cell (hot): 0x%04x", dest); |
| break; |
| case kMipsPseudoChainingCellInvokePredicted: |
| ALOGD("L%p:", lir); |
| ALOGD("-------- chaining cell (predicted): %s%s", |
| dest ? ((Method *) dest)->clazz->descriptor : "", |
| dest ? ((Method *) dest)->name : "N/A"); |
| break; |
| case kMipsPseudoChainingCellInvokeSingleton: |
| ALOGD("L%p:", lir); |
| ALOGD("-------- chaining cell (invoke singleton): %s%s/%p", |
| ((Method *)dest)->clazz->descriptor, |
| ((Method *)dest)->name, |
| ((Method *)dest)->insns); |
| break; |
| case kMipsPseudoEntryBlock: |
| ALOGD("-------- entry offset: 0x%04x", dest); |
| break; |
| case kMipsPseudoDalvikByteCodeBoundary: |
| ALOGD("-------- dalvik offset: 0x%04x @ %s", dest, |
| (char *) lir->operands[1]); |
| break; |
| case kMipsPseudoExitBlock: |
| ALOGD("-------- exit offset: 0x%04x", dest); |
| break; |
| case kMipsPseudoPseudoAlign4: |
| ALOGD("%p (%04x): .align4", baseAddr + offset, offset); |
| break; |
| case kMipsPseudoPCReconstructionCell: |
| ALOGD("L%p:", lir); |
| ALOGD("-------- reconstruct dalvik PC : 0x%04x @ +0x%04x", dest, |
| lir->operands[1]); |
| break; |
| case kMipsPseudoPCReconstructionBlockLabel: |
| /* Do nothing */ |
| break; |
| case kMipsPseudoEHBlockLabel: |
| ALOGD("Exception_Handling:"); |
| break; |
| case kMipsPseudoTargetLabel: |
| case kMipsPseudoNormalBlockLabel: |
| ALOGD("L%p:", lir); |
| break; |
| default: |
| if (lir->flags.isNop && !dumpNop) { |
| break; |
| } |
| buildInsnString(EncodingMap[lir->opcode].name, lir, opName, |
| baseAddr, 256); |
| buildInsnString(EncodingMap[lir->opcode].fmt, lir, buf, baseAddr, |
| 256); |
| ALOGD("%p (%04x): %08x %-9s%s%s", |
| baseAddr + offset, offset, *(u4 *)(baseAddr + offset), opName, buf, |
| lir->flags.isNop ? "(nop)" : ""); |
| break; |
| } |
| |
| if (lir->useMask && (!lir->flags.isNop || dumpNop)) { |
| DUMP_RESOURCE_MASK(dvmDumpResourceMask((LIR *) lir, |
| lir->useMask, "use")); |
| } |
| if (lir->defMask && (!lir->flags.isNop || dumpNop)) { |
| DUMP_RESOURCE_MASK(dvmDumpResourceMask((LIR *) lir, |
| lir->defMask, "def")); |
| } |
| } |
| |
| /* Dump instructions and constant pool contents */ |
| void dvmCompilerCodegenDump(CompilationUnit *cUnit) |
| { |
| ALOGD("Dumping LIR insns"); |
| LIR *lirInsn; |
| MipsLIR *mipsLIR; |
| |
| ALOGD("installed code is at %p", cUnit->baseAddr); |
| ALOGD("total size is %d bytes", cUnit->totalSize); |
| for (lirInsn = cUnit->firstLIRInsn; lirInsn; lirInsn = lirInsn->next) { |
| dvmDumpLIRInsn(lirInsn, (unsigned char *) cUnit->baseAddr); |
| } |
| for (lirInsn = cUnit->classPointerList; lirInsn; lirInsn = lirInsn->next) { |
| mipsLIR = (MipsLIR *) lirInsn; |
| ALOGD("%p (%04x): .class (%s)", |
| (char*)cUnit->baseAddr + mipsLIR->generic.offset, |
| mipsLIR->generic.offset, |
| ((CallsiteInfo *) mipsLIR->operands[0])->classDescriptor); |
| } |
| for (lirInsn = cUnit->literalList; lirInsn; lirInsn = lirInsn->next) { |
| mipsLIR = (MipsLIR *) lirInsn; |
| ALOGD("%p (%04x): .word (%#x)", |
| (char*)cUnit->baseAddr + mipsLIR->generic.offset, |
| mipsLIR->generic.offset, |
| mipsLIR->operands[0]); |
| } |
| } |
| |
| /* Target-specific cache flushing */ |
| void dvmCompilerCacheFlush(long start, long end, long flags) |
| { |
| cacheflush(start, end, flags); |
| } |
| |
| /* Target-specific cache clearing */ |
| void dvmCompilerCacheClear(char *start, size_t size) |
| { |
| /* 0x66 is an invalid opcode for mips. */ |
| memset(start, 0x66, size); |
| } |
