/** @file * DIS - The VirtualBox Disassembler. */ /* * Copyright (C) 2006-2012 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. * * The contents of this file may alternatively be used under the terms * of the Common Development and Distribution License Version 1.0 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the * VirtualBox OSE distribution, in which case the provisions of the * CDDL are applicable instead of those of the GPL. * * You may elect to license modified versions of this file under the * terms and conditions of either the GPL or the CDDL or both. */ #ifndef ___VBox_dis_h #define ___VBox_dis_h #include #include #include RT_C_DECLS_BEGIN /** * CPU mode flags (DISCPUSTATE::mode). */ typedef enum DISCPUMODE { DISCPUMODE_INVALID = 0, DISCPUMODE_16BIT, DISCPUMODE_32BIT, DISCPUMODE_64BIT, /** hack forcing the size of the enum to 32-bits. */ DISCPUMODE_MAKE_32BIT_HACK = 0x7fffffff } DISCPUMODE; /** @name Prefix byte flags * @{ */ #define DISPREFIX_NONE UINT8_C(0x00) /** non-default address size. */ #define DISPREFIX_ADDRSIZE UINT8_C(0x01) /** non-default operand size. */ #define DISPREFIX_OPSIZE UINT8_C(0x02) /** lock prefix. */ #define DISPREFIX_LOCK UINT8_C(0x04) /** segment prefix. */ #define DISPREFIX_SEG UINT8_C(0x08) /** rep(e) prefix (not a prefix, but we'll treat is as one). */ #define DISPREFIX_REP UINT8_C(0x10) /** rep(e) prefix (not a prefix, but we'll treat is as one). */ #define DISPREFIX_REPNE UINT8_C(0x20) /** REX prefix (64 bits) */ #define DISPREFIX_REX UINT8_C(0x40) /** @} */ /** @name 64 bits prefix byte flags * @{ */ #define PREFIX_REX_OP_2_FLAGS(a) (a - OP_PARM_REX_START) #define PREFIX_REX_FLAGS PREFIX_REX_OP_2_FLAGS(OP_PARM_REX) #define PREFIX_REX_FLAGS_B PREFIX_REX_OP_2_FLAGS(OP_PARM_REX_B) #define PREFIX_REX_FLAGS_X PREFIX_REX_OP_2_FLAGS(OP_PARM_REX_X) #define PREFIX_REX_FLAGS_XB PREFIX_REX_OP_2_FLAGS(OP_PARM_REX_XB) #define PREFIX_REX_FLAGS_R PREFIX_REX_OP_2_FLAGS(OP_PARM_REX_R) #define PREFIX_REX_FLAGS_RB PREFIX_REX_OP_2_FLAGS(OP_PARM_REX_RB) #define PREFIX_REX_FLAGS_RX PREFIX_REX_OP_2_FLAGS(OP_PARM_REX_RX) #define PREFIX_REX_FLAGS_RXB PREFIX_REX_OP_2_FLAGS(OP_PARM_REX_RXB) #define PREFIX_REX_FLAGS_W PREFIX_REX_OP_2_FLAGS(OP_PARM_REX_W) #define PREFIX_REX_FLAGS_WB PREFIX_REX_OP_2_FLAGS(OP_PARM_REX_WB) #define PREFIX_REX_FLAGS_WX PREFIX_REX_OP_2_FLAGS(OP_PARM_REX_WX) #define PREFIX_REX_FLAGS_WXB PREFIX_REX_OP_2_FLAGS(OP_PARM_REX_WXB) #define PREFIX_REX_FLAGS_WR PREFIX_REX_OP_2_FLAGS(OP_PARM_REX_WR) #define PREFIX_REX_FLAGS_WRB PREFIX_REX_OP_2_FLAGS(OP_PARM_REX_WRB) #define PREFIX_REX_FLAGS_WRX PREFIX_REX_OP_2_FLAGS(OP_PARM_REX_WRX) #define PREFIX_REX_FLAGS_WRXB PREFIX_REX_OP_2_FLAGS(OP_PARM_REX_WRXB) /** @} */ /** @name Operand type. * @{ */ #define OPTYPE_INVALID RT_BIT(0) #define OPTYPE_HARMLESS RT_BIT(1) #define OPTYPE_CONTROLFLOW RT_BIT(2) #define OPTYPE_POTENTIALLY_DANGEROUS RT_BIT(3) #define OPTYPE_DANGEROUS RT_BIT(4) #define OPTYPE_PORTIO RT_BIT(5) #define OPTYPE_PRIVILEGED RT_BIT(6) #define OPTYPE_PRIVILEGED_NOTRAP RT_BIT(7) #define OPTYPE_UNCOND_CONTROLFLOW RT_BIT(8) #define OPTYPE_RELATIVE_CONTROLFLOW RT_BIT(9) #define OPTYPE_COND_CONTROLFLOW RT_BIT(10) #define OPTYPE_INTERRUPT RT_BIT(11) #define OPTYPE_ILLEGAL RT_BIT(12) #define OPTYPE_RRM_DANGEROUS RT_BIT(14) /**< Some additional dangerous ones when recompiling raw r0. */ #define OPTYPE_RRM_DANGEROUS_16 RT_BIT(15) /**< Some additional dangerous ones when recompiling 16-bit raw r0. */ #define OPTYPE_RRM_MASK (OPTYPE_RRM_DANGEROUS | OPTYPE_RRM_DANGEROUS_16) #define OPTYPE_INHIBIT_IRQS RT_BIT(16) /**< Will or can inhibit irqs (sti, pop ss, mov ss) */ #define OPTYPE_PORTIO_READ RT_BIT(17) #define OPTYPE_PORTIO_WRITE RT_BIT(18) #define OPTYPE_INVALID_64 RT_BIT(19) /**< Invalid in 64 bits mode */ #define OPTYPE_ONLY_64 RT_BIT(20) /**< Only valid in 64 bits mode */ #define OPTYPE_DEFAULT_64_OP_SIZE RT_BIT(21) /**< Default 64 bits operand size */ #define OPTYPE_FORCED_64_OP_SIZE RT_BIT(22) /**< Forced 64 bits operand size; regardless of prefix bytes */ #define OPTYPE_REXB_EXTENDS_OPREG RT_BIT(23) /**< REX.B extends the register field in the opcode byte */ #define OPTYPE_MOD_FIXED_11 RT_BIT(24) /**< modrm.mod is always 11b */ #define OPTYPE_FORCED_32_OP_SIZE_X86 RT_BIT(25) /**< Forced 32 bits operand size; regardless of prefix bytes (only in 16 & 32 bits mode!) */ #define OPTYPE_ALL UINT32_C(0xffffffff) /** @} */ /** @name Parameter usage flags. * @{ */ #define USE_BASE RT_BIT_64(0) #define USE_INDEX RT_BIT_64(1) #define USE_SCALE RT_BIT_64(2) #define USE_REG_GEN8 RT_BIT_64(3) #define USE_REG_GEN16 RT_BIT_64(4) #define USE_REG_GEN32 RT_BIT_64(5) #define USE_REG_GEN64 RT_BIT_64(6) #define USE_REG_FP RT_BIT_64(7) #define USE_REG_MMX RT_BIT_64(8) #define USE_REG_XMM RT_BIT_64(9) #define USE_REG_CR RT_BIT_64(10) #define USE_REG_DBG RT_BIT_64(11) #define USE_REG_SEG RT_BIT_64(12) #define USE_REG_TEST RT_BIT_64(13) #define USE_DISPLACEMENT8 RT_BIT_64(14) #define USE_DISPLACEMENT16 RT_BIT_64(15) #define USE_DISPLACEMENT32 RT_BIT_64(16) #define USE_DISPLACEMENT64 RT_BIT_64(17) #define USE_RIPDISPLACEMENT32 RT_BIT_64(18) #define USE_IMMEDIATE8 RT_BIT_64(19) #define USE_IMMEDIATE8_REL RT_BIT_64(20) #define USE_IMMEDIATE16 RT_BIT_64(21) #define USE_IMMEDIATE16_REL RT_BIT_64(22) #define USE_IMMEDIATE32 RT_BIT_64(23) #define USE_IMMEDIATE32_REL RT_BIT_64(24) #define USE_IMMEDIATE64 RT_BIT_64(25) #define USE_IMMEDIATE64_REL RT_BIT_64(26) #define USE_IMMEDIATE_ADDR_0_32 RT_BIT_64(27) #define USE_IMMEDIATE_ADDR_16_32 RT_BIT_64(28) #define USE_IMMEDIATE_ADDR_0_16 RT_BIT_64(29) #define USE_IMMEDIATE_ADDR_16_16 RT_BIT_64(30) /** DS:ESI */ #define USE_POINTER_DS_BASED RT_BIT_64(31) /** ES:EDI */ #define USE_POINTER_ES_BASED RT_BIT_64(32) #define USE_IMMEDIATE16_SX8 RT_BIT_64(33) #define USE_IMMEDIATE32_SX8 RT_BIT_64(34) #define USE_IMMEDIATE64_SX8 RT_BIT_64(36) #define USE_IMMEDIATE (USE_IMMEDIATE8|USE_IMMEDIATE16|USE_IMMEDIATE32|USE_IMMEDIATE64|USE_IMMEDIATE8_REL|USE_IMMEDIATE16_REL|USE_IMMEDIATE32_REL|USE_IMMEDIATE64_REL|USE_IMMEDIATE_ADDR_0_32|USE_IMMEDIATE_ADDR_16_32|USE_IMMEDIATE_ADDR_0_16|USE_IMMEDIATE_ADDR_16_16|USE_IMMEDIATE16_SX8|USE_IMMEDIATE32_SX8|USE_IMMEDIATE64_SX8) #define DIS_IS_EFFECTIVE_ADDR(flags) !!((flags) & (USE_BASE|USE_INDEX|USE_DISPLACEMENT32|USE_DISPLACEMENT64|USE_DISPLACEMENT16|USE_DISPLACEMENT8|USE_RIPDISPLACEMENT32)) /** @} */ /** index in {"RAX", "RCX", "RDX", "RBX", "RSP", "RBP", "RSI", "RDI", "R8", "R9", "R10", "R11", "R12", "R13", "R14", "R15"} * @{ */ #define USE_REG_RAX 0 #define USE_REG_RCX 1 #define USE_REG_RDX 2 #define USE_REG_RBX 3 #define USE_REG_RSP 4 #define USE_REG_RBP 5 #define USE_REG_RSI 6 #define USE_REG_RDI 7 #define USE_REG_R8 8 #define USE_REG_R9 9 #define USE_REG_R10 10 #define USE_REG_R11 11 #define USE_REG_R12 12 #define USE_REG_R13 13 #define USE_REG_R14 14 #define USE_REG_R15 15 /** @} */ /** index in {"EAX", "ECX", "EDX", "EBX", "ESP", "EBP", "ESI", "EDI", "R8D", "R9D", "R10D", "R11D", "R12D", "R13D", "R14D", "R15D"} * @{ */ #define USE_REG_EAX 0 #define USE_REG_ECX 1 #define USE_REG_EDX 2 #define USE_REG_EBX 3 #define USE_REG_ESP 4 #define USE_REG_EBP 5 #define USE_REG_ESI 6 #define USE_REG_EDI 7 #define USE_REG_R8D 8 #define USE_REG_R9D 9 #define USE_REG_R10D 10 #define USE_REG_R11D 11 #define USE_REG_R12D 12 #define USE_REG_R13D 13 #define USE_REG_R14D 14 #define USE_REG_R15D 15 /** @} */ /** index in {"AX", "CX", "DX", "BX", "SP", "BP", "SI", "DI", "R8W", "R9W", "R10W", "R11W", "R12W", "R13W", "R14W", "R15W"} * @{ */ #define USE_REG_AX 0 #define USE_REG_CX 1 #define USE_REG_DX 2 #define USE_REG_BX 3 #define USE_REG_SP 4 #define USE_REG_BP 5 #define USE_REG_SI 6 #define USE_REG_DI 7 #define USE_REG_R8W 8 #define USE_REG_R9W 9 #define USE_REG_R10W 10 #define USE_REG_R11W 11 #define USE_REG_R12W 12 #define USE_REG_R13W 13 #define USE_REG_R14W 14 #define USE_REG_R15W 15 /** @} */ /** index in {"AL", "CL", "DL", "BL", "AH", "CH", "DH", "BH", "R8B", "R9B", "R10B", "R11B", "R12B", "R13B", "R14B", "R15B", "SPL", "BPL", "SIL", "DIL"} * @{ */ #define USE_REG_AL 0 #define USE_REG_CL 1 #define USE_REG_DL 2 #define USE_REG_BL 3 #define USE_REG_AH 4 #define USE_REG_CH 5 #define USE_REG_DH 6 #define USE_REG_BH 7 #define USE_REG_R8B 8 #define USE_REG_R9B 9 #define USE_REG_R10B 10 #define USE_REG_R11B 11 #define USE_REG_R12B 12 #define USE_REG_R13B 13 #define USE_REG_R14B 14 #define USE_REG_R15B 15 #define USE_REG_SPL 16 #define USE_REG_BPL 17 #define USE_REG_SIL 18 #define USE_REG_DIL 19 /** @} */ /** index in {ES, CS, SS, DS, FS, GS} * @{ */ typedef enum { DIS_SELREG_ES = 0, DIS_SELREG_CS = 1, DIS_SELREG_SS = 2, DIS_SELREG_DS = 3, DIS_SELREG_FS = 4, DIS_SELREG_GS = 5, /** The usual 32-bit paranoia. */ DIS_SEGREG_32BIT_HACK = 0x7fffffff } DIS_SELREG; /** @} */ #define USE_REG_FP0 0 #define USE_REG_FP1 1 #define USE_REG_FP2 2 #define USE_REG_FP3 3 #define USE_REG_FP4 4 #define USE_REG_FP5 5 #define USE_REG_FP6 6 #define USE_REG_FP7 7 #define USE_REG_CR0 0 #define USE_REG_CR1 1 #define USE_REG_CR2 2 #define USE_REG_CR3 3 #define USE_REG_CR4 4 #define USE_REG_CR8 8 #define USE_REG_DR0 0 #define USE_REG_DR1 1 #define USE_REG_DR2 2 #define USE_REG_DR3 3 #define USE_REG_DR4 4 #define USE_REG_DR5 5 #define USE_REG_DR6 6 #define USE_REG_DR7 7 #define USE_REG_MMX0 0 #define USE_REG_MMX1 1 #define USE_REG_MMX2 2 #define USE_REG_MMX3 3 #define USE_REG_MMX4 4 #define USE_REG_MMX5 5 #define USE_REG_MMX6 6 #define USE_REG_MMX7 7 #define USE_REG_XMM0 0 #define USE_REG_XMM1 1 #define USE_REG_XMM2 2 #define USE_REG_XMM3 3 #define USE_REG_XMM4 4 #define USE_REG_XMM5 5 #define USE_REG_XMM6 6 #define USE_REG_XMM7 7 /** Used by DISQueryParamVal & EMIQueryParamVal * @{ */ #define PARAM_VAL8 RT_BIT(0) #define PARAM_VAL16 RT_BIT(1) #define PARAM_VAL32 RT_BIT(2) #define PARAM_VAL64 RT_BIT(3) #define PARAM_VALFARPTR16 RT_BIT(4) #define PARAM_VALFARPTR32 RT_BIT(5) #define PARMTYPE_REGISTER 1 #define PARMTYPE_ADDRESS 2 #define PARMTYPE_IMMEDIATE 3 typedef struct { uint32_t type; uint32_t size; uint64_t flags; union { uint8_t val8; uint16_t val16; uint32_t val32; uint64_t val64; struct { uint16_t sel; uint32_t offset; } farptr; } val; } OP_PARAMVAL; /** Pointer to opcode parameter value. */ typedef OP_PARAMVAL *POP_PARAMVAL; typedef enum { PARAM_DEST, PARAM_SOURCE } PARAM_TYPE; /** @} */ /** * Operand Parameter. */ typedef struct OP_PARAMETER { uint64_t parval; uint64_t flags; union { int64_t i64; int32_t i32; int32_t i16; int32_t i8; uint64_t u64; uint32_t u32; uint32_t u16; uint32_t u8; } uDisp; int32_t param; union { uint32_t reg_gen; /** ST(0) - ST(7) */ uint32_t reg_fp; /** MMX0 - MMX7 */ uint32_t reg_mmx; /** XMM0 - XMM7 */ uint32_t reg_xmm; /** {ES, CS, SS, DS, FS, GS} */ DIS_SELREG reg_seg; /** TR0-TR7 (?) */ uint32_t reg_test; /** CR0-CR4 */ uint32_t reg_ctrl; /** DR0-DR7 */ uint32_t reg_dbg; } base; union { uint32_t reg_gen; } index; /** 2, 4 or 8. */ uint8_t scale; /** Parameter size. */ uint8_t cb; } OP_PARAMETER; /** Pointer to opcode parameter. */ typedef OP_PARAMETER *POP_PARAMETER; /** Pointer to opcode parameter. */ typedef const OP_PARAMETER *PCOP_PARAMETER; /** Pointer to opcode. */ typedef struct OPCODE *POPCODE; /** Pointer to const opcode. */ typedef const struct OPCODE *PCOPCODE; /** * Callback for reading opcode bytes. * * @param pDisState Pointer to the CPU state. The primary user argument * can be retrived from DISCPUSTATE::apvUserData[0]. If * more is required these can be passed in the * subsequent slots. * @param pbDst Pointer to output buffer. * @param uSrcAddr The address to start reading at. * @param cbToRead The number of bytes to read. */ typedef DECLCALLBACK(int) FNDISREADBYTES(PDISCPUSTATE pDisState, uint8_t *pbDst, RTUINTPTR uSrcAddr, uint32_t cbToRead); /** Pointer to a opcode byte reader. */ typedef FNDISREADBYTES *PFNDISREADBYTES; /** Parser callback. * @remark no DECLCALLBACK() here because it's considered to be internal (really, I'm too lazy to update all the functions). */ typedef unsigned FNDISPARSE(RTUINTPTR pu8CodeBlock, PCOPCODE pOp, POP_PARAMETER pParam, PDISCPUSTATE pCpu); typedef FNDISPARSE *PFNDISPARSE; typedef struct DISCPUSTATE { /** Global setting. */ DISCPUMODE mode; /** Per instruction prefix settings. */ uint32_t prefix; /**< @todo change to uint8_t */ /** segment prefix value. */ DIS_SELREG enmPrefixSeg; /** rex prefix value (64 bits only */ uint32_t prefix_rex; /**< @todo change to uint8_t */ /** addressing mode (16 or 32 bits). (CPUMODE_*) */ DISCPUMODE addrmode; /** operand mode (16 or 32 bits). (CPUMODE_*) */ DISCPUMODE opmode; OP_PARAMETER param1; OP_PARAMETER param2; OP_PARAMETER param3; /** ModRM fields. */ union { /** Bitfield view */ struct { unsigned Rm : 4; unsigned Reg : 4; unsigned Mod : 2; } Bits; /** unsigned view */ unsigned u; } ModRM; /** SIB fields. */ union { /** Bitfield view */ struct { unsigned Base : 4; unsigned Index : 4; unsigned Scale : 2; } Bits; /** unsigned view */ unsigned u; } SIB; int32_t i32SibDisp; /** The instruction size. */ uint32_t opsize; /** The address of the instruction. */ RTUINTPTR uInstrAddr; /** The size of the prefix bytes. */ uint8_t cbPrefix; /** First opcode byte of instruction. */ uint8_t opcode; /** Last prefix byte (for SSE2 extension tables). */ uint8_t lastprefix; /** The instruction bytes. */ uint8_t abInstr[16]; /** Internal: pointer to disassembly function table */ PFNDISPARSE *pfnDisasmFnTable; /** Internal: instruction filter */ uint32_t fFilter; /** Return code set by a worker function like the opcode bytes readers. */ int32_t rc; /** Pointer to the current instruction. */ PCOPCODE pCurInstr; #ifndef DIS_CORE_ONLY /** Opcode format string for current instruction. */ const char *pszOpcode; #endif /** Optional read function */ PFNDISREADBYTES pfnReadBytes; /** User data slots for the read callback. The first entry is used for the * pvUser argument, the rest are up for grabs. * @remarks This must come last so that we can memset everything before this. */ void *apvUserData[3]; } DISCPUSTATE; /** The storage padding sufficient to hold the largest DISCPUSTATE in all * contexts (R3, R0 and RC). Used various places in the VMM internals. */ #define DISCPUSTATE_PADDING_SIZE (HC_ARCH_BITS == 64 ? 0x1a0 : 0x180) /** Opcode. */ #pragma pack(4) typedef struct OPCODE { #ifndef DIS_CORE_ONLY const char *pszOpcode; #endif uint8_t idxParse1; uint8_t idxParse2; uint8_t idxParse3; uint16_t opcode; uint16_t param1; uint16_t param2; uint16_t param3; unsigned optype; } OPCODE; #pragma pack() DISDECL(int) DISInstrToStr(void const *pvInstr, DISCPUMODE enmCpuMode, PDISCPUSTATE pCpu, uint32_t *pcbInstr, char *pszOutput, size_t cbOutput); DISDECL(int) DISInstrToStrWithReader(RTUINTPTR uInstrAddr, DISCPUMODE enmCpuMode, PFNDISREADBYTES pfnReadBytes, void *pvUser, PDISCPUSTATE pCpu, uint32_t *pcbInstr, char *pszOutput, size_t cbOutput); DISDECL(int) DISInstrToStrEx(RTUINTPTR uInstrAddr, DISCPUMODE enmCpuMode, PFNDISREADBYTES pfnReadBytes, void *pvUser, uint32_t uFilter, PDISCPUSTATE pCpu, uint32_t *pcbInstr, char *pszOutput, size_t cbOutput); DISDECL(int) DISInstr(void const *pvInstr, DISCPUMODE enmCpuMode, PDISCPUSTATE pCpu, uint32_t *pcbInstr); DISDECL(int) DISInstrWithReader(RTUINTPTR uInstrAddr, DISCPUMODE enmCpuMode, PFNDISREADBYTES pfnReadBytes, void *pvUser, PDISCPUSTATE pCpu, uint32_t *pcbInstr); DISDECL(int) DISInstEx(RTUINTPTR uInstrAddr, DISCPUMODE enmCpuMode, uint32_t uFilter, PFNDISREADBYTES pfnReadBytes, void *pvUser, PDISCPUSTATE pCpu, uint32_t *pcbInstr); DISDECL(int) DISGetParamSize(PDISCPUSTATE pCpu, POP_PARAMETER pParam); DISDECL(DIS_SELREG) DISDetectSegReg(PDISCPUSTATE pCpu, POP_PARAMETER pParam); DISDECL(uint8_t) DISQuerySegPrefixByte(PDISCPUSTATE pCpu); DISDECL(int) DISQueryParamVal(PCPUMCTXCORE pCtx, PDISCPUSTATE pCpu, POP_PARAMETER pParam, POP_PARAMVAL pParamVal, PARAM_TYPE parmtype); DISDECL(int) DISQueryParamRegPtr(PCPUMCTXCORE pCtx, PDISCPUSTATE pCpu, POP_PARAMETER pParam, void **ppReg, size_t *pcbSize); DISDECL(int) DISFetchReg8(PCCPUMCTXCORE pCtx, unsigned reg8, uint8_t *pVal); DISDECL(int) DISFetchReg16(PCCPUMCTXCORE pCtx, unsigned reg16, uint16_t *pVal); DISDECL(int) DISFetchReg32(PCCPUMCTXCORE pCtx, unsigned reg32, uint32_t *pVal); DISDECL(int) DISFetchReg64(PCCPUMCTXCORE pCtx, unsigned reg64, uint64_t *pVal); DISDECL(int) DISFetchRegSeg(PCCPUMCTXCORE pCtx, DIS_SELREG sel, RTSEL *pVal); DISDECL(int) DISFetchRegSegEx(PCCPUMCTXCORE pCtx, DIS_SELREG sel, RTSEL *pVal, PCPUMSELREGHID *ppSelHidReg); DISDECL(int) DISWriteReg8(PCPUMCTXCORE pRegFrame, unsigned reg8, uint8_t val8); DISDECL(int) DISWriteReg16(PCPUMCTXCORE pRegFrame, unsigned reg32, uint16_t val16); DISDECL(int) DISWriteReg32(PCPUMCTXCORE pRegFrame, unsigned reg32, uint32_t val32); DISDECL(int) DISWriteReg64(PCPUMCTXCORE pRegFrame, unsigned reg64, uint64_t val64); DISDECL(int) DISWriteRegSeg(PCPUMCTXCORE pCtx, DIS_SELREG sel, RTSEL val); DISDECL(int) DISPtrReg8(PCPUMCTXCORE pCtx, unsigned reg8, uint8_t **ppReg); DISDECL(int) DISPtrReg16(PCPUMCTXCORE pCtx, unsigned reg16, uint16_t **ppReg); DISDECL(int) DISPtrReg32(PCPUMCTXCORE pCtx, unsigned reg32, uint32_t **ppReg); DISDECL(int) DISPtrReg64(PCPUMCTXCORE pCtx, unsigned reg64, uint64_t **ppReg); /** * Try resolve an address into a symbol name. * * For use with DISFormatYasmEx(), DISFormatMasmEx() and DISFormatGasEx(). * * @returns VBox status code. * @retval VINF_SUCCESS on success, pszBuf contains the full symbol name. * @retval VINF_BUFFER_OVERFLOW if pszBuf is too small the symbol name. The * content of pszBuf is truncated and zero terminated. * @retval VERR_SYMBOL_NOT_FOUND if no matching symbol was found for the address. * * @param pCpu Pointer to the disassembler CPU state. * @param u32Sel The selector value. Use DIS_FMT_SEL_IS_REG, DIS_FMT_SEL_GET_VALUE, * DIS_FMT_SEL_GET_REG to access this. * @param uAddress The segment address. * @param pszBuf Where to store the symbol name * @param cchBuf The size of the buffer. * @param poff If not a perfect match, then this is where the offset from the return * symbol to the specified address is returned. * @param pvUser The user argument. */ typedef DECLCALLBACK(int) FNDISGETSYMBOL(PCDISCPUSTATE pCpu, uint32_t u32Sel, RTUINTPTR uAddress, char *pszBuf, size_t cchBuf, RTINTPTR *poff, void *pvUser); /** Pointer to a FNDISGETSYMBOL(). */ typedef FNDISGETSYMBOL *PFNDISGETSYMBOL; /** * Checks if the FNDISGETSYMBOL argument u32Sel is a register or not. */ #define DIS_FMT_SEL_IS_REG(u32Sel) ( !!((u32Sel) & RT_BIT(31)) ) /** * Extracts the selector value from the FNDISGETSYMBOL argument u32Sel. * @returns Selector value. */ #define DIS_FMT_SEL_GET_VALUE(u32Sel) ( (RTSEL)(u32Sel) ) /** * Extracts the register number from the FNDISGETSYMBOL argument u32Sel. * @returns USE_REG_CS, USE_REG_SS, USE_REG_DS, USE_REG_ES, USE_REG_FS or USE_REG_FS. */ #define DIS_FMT_SEL_GET_REG(u32Sel) ( ((u32Sel) >> 16) & 0xf ) /** @internal */ #define DIS_FMT_SEL_FROM_REG(uReg) ( ((uReg) << 16) | RT_BIT(31) | 0xffff ) /** @internal */ #define DIS_FMT_SEL_FROM_VALUE(Sel) ( (Sel) & 0xffff ) /** @name Flags for use with DISFormatYasmEx(), DISFormatMasmEx() and DISFormatGasEx(). * @{ */ /** Put the address to the right. */ #define DIS_FMT_FLAGS_ADDR_RIGHT RT_BIT_32(0) /** Put the address to the left. */ #define DIS_FMT_FLAGS_ADDR_LEFT RT_BIT_32(1) /** Put the address in comments. * For some assemblers this implies placing it to the right. */ #define DIS_FMT_FLAGS_ADDR_COMMENT RT_BIT_32(2) /** Put the instruction bytes to the right of the disassembly. */ #define DIS_FMT_FLAGS_BYTES_RIGHT RT_BIT_32(3) /** Put the instruction bytes to the left of the disassembly. */ #define DIS_FMT_FLAGS_BYTES_LEFT RT_BIT_32(4) /** Put the instruction bytes in comments. * For some assemblers this implies placing the bytes to the right. */ #define DIS_FMT_FLAGS_BYTES_COMMENT RT_BIT_32(5) /** Put the bytes in square brackets. */ #define DIS_FMT_FLAGS_BYTES_BRACKETS RT_BIT_32(6) /** Put spaces between the bytes. */ #define DIS_FMT_FLAGS_BYTES_SPACED RT_BIT_32(7) /** Display the relative +/- offset of branch instructions that uses relative addresses, * and put the target address in parenthesis. */ #define DIS_FMT_FLAGS_RELATIVE_BRANCH RT_BIT_32(8) /** Strict assembly. The assembly should, when ever possible, make the * assembler reproduce the exact same binary. (Refers to the yasm * strict keyword.) */ #define DIS_FMT_FLAGS_STRICT RT_BIT_32(9) /** Checks if the given flags are a valid combination. */ #define DIS_FMT_FLAGS_IS_VALID(fFlags) \ ( !((fFlags) & ~UINT32_C(0x000003ff)) \ && ((fFlags) & (DIS_FMT_FLAGS_ADDR_RIGHT | DIS_FMT_FLAGS_ADDR_LEFT)) != (DIS_FMT_FLAGS_ADDR_RIGHT | DIS_FMT_FLAGS_ADDR_LEFT) \ && ( !((fFlags) & DIS_FMT_FLAGS_ADDR_COMMENT) \ || (fFlags & (DIS_FMT_FLAGS_ADDR_RIGHT | DIS_FMT_FLAGS_ADDR_LEFT)) ) \ && ((fFlags) & (DIS_FMT_FLAGS_BYTES_RIGHT | DIS_FMT_FLAGS_BYTES_LEFT)) != (DIS_FMT_FLAGS_BYTES_RIGHT | DIS_FMT_FLAGS_BYTES_LEFT) \ && ( !((fFlags) & (DIS_FMT_FLAGS_BYTES_COMMENT | DIS_FMT_FLAGS_BYTES_BRACKETS)) \ || (fFlags & (DIS_FMT_FLAGS_BYTES_RIGHT | DIS_FMT_FLAGS_BYTES_LEFT)) ) \ ) /** @} */ DISDECL(size_t) DISFormatYasm( PCDISCPUSTATE pCpu, char *pszBuf, size_t cchBuf); DISDECL(size_t) DISFormatYasmEx(PCDISCPUSTATE pCpu, char *pszBuf, size_t cchBuf, uint32_t fFlags, PFNDISGETSYMBOL pfnGetSymbol, void *pvUser); DISDECL(size_t) DISFormatMasm( PCDISCPUSTATE pCpu, char *pszBuf, size_t cchBuf); DISDECL(size_t) DISFormatMasmEx(PCDISCPUSTATE pCpu, char *pszBuf, size_t cchBuf, uint32_t fFlags, PFNDISGETSYMBOL pfnGetSymbol, void *pvUser); DISDECL(size_t) DISFormatGas( PCDISCPUSTATE pCpu, char *pszBuf, size_t cchBuf); DISDECL(size_t) DISFormatGasEx( PCDISCPUSTATE pCpu, char *pszBuf, size_t cchBuf, uint32_t fFlags, PFNDISGETSYMBOL pfnGetSymbol, void *pvUser); /** @todo DISAnnotate(PCDISCPUSTATE pCpu, char *pszBuf, size_t cchBuf, register reader, memory reader); */ DISDECL(bool) DISFormatYasmIsOddEncoding(PDISCPUSTATE pCpu); RT_C_DECLS_END #endif