mirror of
https://github.com/capstone-engine/capstone.git
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182 lines
3.2 KiB
C
182 lines
3.2 KiB
C
/* Capstone Disassembly Engine */
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/* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013-2019 */
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#if defined(CAPSTONE_HAS_OSXKERNEL)
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#include <Availability.h>
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#include <libkern/libkern.h>
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#else
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#include <stdio.h>
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#include <stdlib.h>
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#endif
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#include <string.h>
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#include "MCInst.h"
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#include "utils.h"
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#define MCINST_CACHE (ARR_SIZE(mcInst->Operands) - 1)
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void MCInst_Init(MCInst *inst)
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{
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// unnecessary to initialize in loop . its expensive and inst->size shuold be honored
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inst->Operands[0].Kind = kInvalid;
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inst->Operands[0].ImmVal = 0;
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inst->Opcode = 0;
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inst->OpcodePub = 0;
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inst->size = 0;
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inst->has_imm = false;
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inst->op1_size = 0;
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inst->writeback = false;
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inst->ac_idx = 0;
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inst->popcode_adjust = 0;
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inst->assembly[0] = '\0';
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inst->wasm_data.type = WASM_OP_INVALID;
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inst->xAcquireRelease = 0;
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}
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void MCInst_clear(MCInst *inst)
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{
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inst->size = 0;
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}
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// do not free @Op
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void MCInst_insert0(MCInst *inst, int index, MCOperand *Op)
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{
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int i;
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for(i = inst->size; i > index; i--)
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//memcpy(&(inst->Operands[i]), &(inst->Operands[i-1]), sizeof(MCOperand));
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inst->Operands[i] = inst->Operands[i-1];
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inst->Operands[index] = *Op;
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inst->size++;
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}
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void MCInst_setOpcode(MCInst *inst, unsigned Op)
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{
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inst->Opcode = Op;
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}
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void MCInst_setOpcodePub(MCInst *inst, unsigned Op)
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{
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inst->OpcodePub = Op;
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}
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unsigned MCInst_getOpcode(const MCInst *inst)
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{
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return inst->Opcode;
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}
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unsigned MCInst_getOpcodePub(const MCInst *inst)
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{
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return inst->OpcodePub;
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}
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MCOperand *MCInst_getOperand(MCInst *inst, unsigned i)
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{
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return &inst->Operands[i];
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}
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unsigned MCInst_getNumOperands(const MCInst *inst)
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{
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return inst->size;
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}
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// This addOperand2 function doesnt free Op
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void MCInst_addOperand2(MCInst *inst, MCOperand *Op)
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{
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inst->Operands[inst->size] = *Op;
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inst->size++;
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}
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bool MCOperand_isValid(const MCOperand *op)
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{
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return op->Kind != kInvalid;
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}
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bool MCOperand_isReg(const MCOperand *op)
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{
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return op->Kind == kRegister;
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}
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bool MCOperand_isImm(const MCOperand *op)
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{
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return op->Kind == kImmediate;
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}
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bool MCOperand_isFPImm(const MCOperand *op)
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{
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return op->Kind == kFPImmediate;
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}
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/// getReg - Returns the register number.
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unsigned MCOperand_getReg(const MCOperand *op)
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{
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return op->RegVal;
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}
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/// setReg - Set the register number.
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void MCOperand_setReg(MCOperand *op, unsigned Reg)
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{
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op->RegVal = Reg;
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}
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int64_t MCOperand_getImm(MCOperand *op)
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{
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return op->ImmVal;
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}
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void MCOperand_setImm(MCOperand *op, int64_t Val)
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{
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op->ImmVal = Val;
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}
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double MCOperand_getFPImm(const MCOperand *op)
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{
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return op->FPImmVal;
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}
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void MCOperand_setFPImm(MCOperand *op, double Val)
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{
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op->FPImmVal = Val;
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}
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MCOperand *MCOperand_CreateReg1(MCInst *mcInst, unsigned Reg)
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{
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MCOperand *op = &(mcInst->Operands[MCINST_CACHE]);
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op->Kind = kRegister;
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op->RegVal = Reg;
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return op;
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}
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void MCOperand_CreateReg0(MCInst *mcInst, unsigned Reg)
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{
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MCOperand *op = &(mcInst->Operands[mcInst->size]);
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mcInst->size++;
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op->Kind = kRegister;
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op->RegVal = Reg;
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}
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MCOperand *MCOperand_CreateImm1(MCInst *mcInst, int64_t Val)
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{
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MCOperand *op = &(mcInst->Operands[MCINST_CACHE]);
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op->Kind = kImmediate;
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op->ImmVal = Val;
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return op;
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}
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void MCOperand_CreateImm0(MCInst *mcInst, int64_t Val)
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{
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MCOperand *op = &(mcInst->Operands[mcInst->size]);
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mcInst->size++;
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op->Kind = kImmediate;
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op->ImmVal = Val;
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}
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