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better in the llvm world. Among other things, this changes: 1. The guts of libedis are now moved into lib/MC/MCDisassembler 2. llvm-mc now depends on lib/MC/MCDisassembler, not tools/edis, so edis and mc don't have to be built in series. 3. lib/MC/MCDisassembler no longer depends on the C api, the C API depends on it. 4. Various code cleanup changes. There is still a lot to be done to make edis fit with the llvm design, but this is an incremental step in the right direction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108869 91177308-0d34-0410-b5e6-96231b3b80d8
285 lines
7.7 KiB
C++
285 lines
7.7 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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// FIXME: This code isn't layered right, the headers should be moved to
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// include llvm/MC/MCDisassembler or something.
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#include "../../lib/MC/MCDisassembler/EDDisassembler.h"
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#include "../../lib/MC/MCDisassembler/EDInst.h"
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#include "../../lib/MC/MCDisassembler/EDOperand.h"
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#include "../../lib/MC/MCDisassembler/EDToken.h"
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#include "llvm-c/EnhancedDisassembly.h"
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using namespace llvm;
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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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EDDisassembler::AssemblySyntax Syntax;
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switch (syntax) {
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default: assert(0 && "Unknown assembly syntax!");
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case kEDAssemblySyntaxX86Intel:
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Syntax = EDDisassembler::kEDAssemblySyntaxX86Intel;
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break;
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case kEDAssemblySyntaxX86ATT:
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Syntax = EDDisassembler::kEDAssemblySyntaxX86ATT;
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break;
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case kEDAssemblySyntaxARMUAL:
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Syntax = EDDisassembler::kEDAssemblySyntaxARMUAL;
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break;
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}
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EDDisassemblerRef ret = EDDisassembler::getDisassembler(triple, Syntax);
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if (!ret)
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return -1;
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*disassembler = ret;
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return 0;
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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 = ((EDDisassembler*)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 ((EDDisassembler*)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 ((EDDisassembler*)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 = ((EDDisassembler*)disassembler)->createInst(byteReader,
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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 ((EDInst*)inst);
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}
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int EDInstByteSize(EDInstRef inst) {
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return ((EDInst*)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 ((EDInst*)inst)->getString(*buf);
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}
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int EDInstID(unsigned *instID, EDInstRef inst) {
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*instID = ((EDInst*)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 ((EDInst*)inst)->isBranch();
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}
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int EDInstIsMove(EDInstRef inst) {
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return ((EDInst*)inst)->isMove();
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}
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int EDBranchTargetID(EDInstRef inst) {
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return ((EDInst*)inst)->branchTargetID();
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}
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int EDMoveSourceID(EDInstRef inst) {
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return ((EDInst*)inst)->moveSourceID();
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}
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int EDMoveTargetID(EDInstRef inst) {
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return ((EDInst*)inst)->moveTargetID();
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}
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int EDNumTokens(EDInstRef inst) {
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return ((EDInst*)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 ((EDInst*)inst)->getToken(*(EDToken**)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 ((EDToken*)token)->getString(*buf);
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}
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int EDOperandIndexForToken(EDTokenRef token) {
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return ((EDToken*)token)->operandID();
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}
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int EDTokenIsWhitespace(EDTokenRef token) {
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return ((EDToken*)token)->type() == EDToken::kTokenWhitespace;
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}
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int EDTokenIsPunctuation(EDTokenRef token) {
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return ((EDToken*)token)->type() == EDToken::kTokenPunctuation;
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}
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int EDTokenIsOpcode(EDTokenRef token) {
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return ((EDToken*)token)->type() == EDToken::kTokenOpcode;
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}
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int EDTokenIsLiteral(EDTokenRef token) {
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return ((EDToken*)token)->type() == EDToken::kTokenLiteral;
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}
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int EDTokenIsRegister(EDTokenRef token) {
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return ((EDToken*)token)->type() == EDToken::kTokenRegister;
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}
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int EDTokenIsNegativeLiteral(EDTokenRef token) {
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if (((EDToken*)token)->type() != EDToken::kTokenLiteral)
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return -1;
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return ((EDToken*)token)->literalSign();
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}
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int EDLiteralTokenAbsoluteValue(uint64_t *value, EDTokenRef token) {
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if (((EDToken*)token)->type() != EDToken::kTokenLiteral)
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return -1;
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return ((EDToken*)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 (((EDToken*)token)->type() != EDToken::kTokenRegister)
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return -1;
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return ((EDToken*)token)->registerID(*registerID);
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}
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int EDNumOperands(EDInstRef inst) {
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return ((EDInst*)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 ((EDInst*)inst)->getOperand(*(EDOperand**)operand, index);
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}
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int EDOperandIsRegister(EDOperandRef operand) {
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return ((EDOperand*)operand)->isRegister();
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}
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int EDOperandIsImmediate(EDOperandRef operand) {
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return ((EDOperand*)operand)->isImmediate();
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}
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int EDOperandIsMemory(EDOperandRef operand) {
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return ((EDOperand*)operand)->isMemory();
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}
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int EDRegisterOperandValue(unsigned *value, EDOperandRef operand) {
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if (!((EDOperand*)operand)->isRegister())
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return -1;
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*value = ((EDOperand*)operand)->regVal();
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return 0;
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}
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int EDImmediateOperandValue(uint64_t *value, EDOperandRef operand) {
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if (!((EDOperand*)operand)->isImmediate())
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return -1;
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*value = ((EDOperand*)operand)->immediateVal();
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return 0;
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}
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int EDEvaluateOperand(uint64_t *result, EDOperandRef operand,
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::EDRegisterReaderCallback regReader, void *arg) {
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return ((EDOperand*)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, EDOperandRef operand,
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EDRegisterBlock_t regBlock) {
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return ((EDOperand*)operand)->evaluate(*result, regBlock);
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}
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int EDBlockVisitTokens(EDInstRef inst, ::EDTokenVisitor_t visitor) {
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return ((EDInst*)inst)->visitTokens((llvm::EDTokenVisitor_t)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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