mirror of
https://github.com/c64scene-ar/llvm-6502.git
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8f993b8c24
I also added a rule to the ARM target's Makefile to build the ARM-specific instruction information table for the enhanced disassembler. I will add the test harness for all this stuff in a separate commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100735 91177308-0d34-0410-b5e6-96231b3b80d8
293 lines
6.8 KiB
C++
293 lines
6.8 KiB
C++
//===-EDMain.cpp - LLVM Enhanced Disassembly C API ------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the enhanced disassembler's public C API.
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//
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//===----------------------------------------------------------------------===//
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#include "EDDisassembler.h"
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#include "EDInst.h"
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#include "EDOperand.h"
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#include "EDToken.h"
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#include "llvm-c/EnhancedDisassembly.h"
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int EDGetDisassembler(EDDisassemblerRef *disassembler,
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const char *triple,
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EDAssemblySyntax_t syntax) {
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EDDisassembler::initialize();
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EDDisassemblerRef ret = EDDisassembler::getDisassembler(triple,
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syntax);
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if (ret) {
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*disassembler = ret;
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return 0;
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} else {
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return -1;
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}
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}
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int EDGetRegisterName(const char** regName,
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EDDisassemblerRef disassembler,
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unsigned regID) {
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const char* name = disassembler->nameWithRegisterID(regID);
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if (!name)
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return -1;
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*regName = name;
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return 0;
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}
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int EDRegisterIsStackPointer(EDDisassemblerRef disassembler,
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unsigned regID) {
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return disassembler->registerIsStackPointer(regID) ? 1 : 0;
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}
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int EDRegisterIsProgramCounter(EDDisassemblerRef disassembler,
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unsigned regID) {
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return disassembler->registerIsProgramCounter(regID) ? 1 : 0;
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}
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unsigned int EDCreateInsts(EDInstRef *insts,
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unsigned int count,
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EDDisassemblerRef disassembler,
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EDByteReaderCallback byteReader,
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uint64_t address,
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void *arg) {
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unsigned int index;
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for (index = 0; index < count; ++index) {
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EDInst *inst = disassembler->createInst(byteReader, address, arg);
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if (!inst)
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return index;
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insts[index] = inst;
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address += inst->byteSize();
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}
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return count;
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}
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void EDReleaseInst(EDInstRef inst) {
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delete inst;
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}
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int EDInstByteSize(EDInstRef inst) {
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return inst->byteSize();
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}
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int EDGetInstString(const char **buf,
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EDInstRef inst) {
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return inst->getString(*buf);
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}
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int EDInstID(unsigned *instID, EDInstRef inst) {
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*instID = inst->instID();
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return 0;
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}
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int EDInstIsBranch(EDInstRef inst) {
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return inst->isBranch();
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}
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int EDInstIsMove(EDInstRef inst) {
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return inst->isMove();
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}
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int EDBranchTargetID(EDInstRef inst) {
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return inst->branchTargetID();
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}
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int EDMoveSourceID(EDInstRef inst) {
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return inst->moveSourceID();
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}
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int EDMoveTargetID(EDInstRef inst) {
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return inst->moveTargetID();
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}
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int EDNumTokens(EDInstRef inst) {
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return inst->numTokens();
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}
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int EDGetToken(EDTokenRef *token,
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EDInstRef inst,
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int index) {
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return inst->getToken(*token, index);
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}
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int EDGetTokenString(const char **buf,
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EDTokenRef token) {
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return token->getString(*buf);
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}
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int EDOperandIndexForToken(EDTokenRef token) {
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return token->operandID();
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}
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int EDTokenIsWhitespace(EDTokenRef token) {
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if (token->type() == EDToken::kTokenWhitespace)
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return 1;
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else
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return 0;
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}
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int EDTokenIsPunctuation(EDTokenRef token) {
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if (token->type() == EDToken::kTokenPunctuation)
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return 1;
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else
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return 0;
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}
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int EDTokenIsOpcode(EDTokenRef token) {
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if (token->type() == EDToken::kTokenOpcode)
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return 1;
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else
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return 0;
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}
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int EDTokenIsLiteral(EDTokenRef token) {
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if (token->type() == EDToken::kTokenLiteral)
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return 1;
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else
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return 0;
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}
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int EDTokenIsRegister(EDTokenRef token) {
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if (token->type() == EDToken::kTokenRegister)
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return 1;
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else
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return 0;
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}
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int EDTokenIsNegativeLiteral(EDTokenRef token) {
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if (token->type() != EDToken::kTokenLiteral)
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return -1;
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return token->literalSign();
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}
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int EDLiteralTokenAbsoluteValue(uint64_t *value,
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EDTokenRef token) {
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if (token->type() != EDToken::kTokenLiteral)
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return -1;
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return token->literalAbsoluteValue(*value);
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}
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int EDRegisterTokenValue(unsigned *registerID,
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EDTokenRef token) {
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if (token->type() != EDToken::kTokenRegister)
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return -1;
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return token->registerID(*registerID);
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}
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int EDNumOperands(EDInstRef inst) {
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return inst->numOperands();
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}
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int EDGetOperand(EDOperandRef *operand,
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EDInstRef inst,
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int index) {
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return inst->getOperand(*operand, index);
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}
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int EDOperandIsRegister(EDOperandRef operand) {
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return operand->isRegister();
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}
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int EDOperandIsImmediate(EDOperandRef operand) {
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return operand->isImmediate();
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}
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int EDOperandIsMemory(EDOperandRef operand) {
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return operand->isMemory();
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}
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int EDRegisterOperandValue(unsigned *value,
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EDOperandRef operand) {
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if (!operand->isRegister())
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return -1;
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*value = operand->regVal();
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return 0;
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}
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int EDImmediateOperandValue(uint64_t *value,
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EDOperandRef operand) {
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if (!operand->isImmediate())
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return -1;
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*value = operand->immediateVal();
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return 0;
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}
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int EDEvaluateOperand(uint64_t *result,
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EDOperandRef operand,
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EDRegisterReaderCallback regReader,
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void *arg) {
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return operand->evaluate(*result, regReader, arg);
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}
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#ifdef __BLOCKS__
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struct ByteReaderWrapper {
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EDByteBlock_t byteBlock;
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};
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static int readerWrapperCallback(uint8_t *byte,
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uint64_t address,
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void *arg) {
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struct ByteReaderWrapper *wrapper = (struct ByteReaderWrapper *)arg;
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return wrapper->byteBlock(byte, address);
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}
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unsigned int EDBlockCreateInsts(EDInstRef *insts,
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int count,
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EDDisassemblerRef disassembler,
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EDByteBlock_t byteBlock,
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uint64_t address) {
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struct ByteReaderWrapper wrapper;
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wrapper.byteBlock = byteBlock;
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return EDCreateInsts(insts,
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count,
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disassembler,
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readerWrapperCallback,
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address,
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(void*)&wrapper);
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}
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int EDBlockEvaluateOperand(uint64_t *result,
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EDOperandRef operand,
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EDRegisterBlock_t regBlock) {
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return operand->evaluate(*result, regBlock);
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}
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int EDBlockVisitTokens(EDInstRef inst,
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EDTokenVisitor_t visitor) {
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return inst->visitTokens(visitor);
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}
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#else
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extern "C" unsigned int EDBlockCreateInsts() {
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return 0;
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}
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extern "C" int EDBlockEvaluateOperand() {
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return -1;
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}
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extern "C" int EDBlockVisitTokens() {
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return -1;
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}
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#endif
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