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Diffstat (limited to 'js/src/zydis/Zydis/Internal/DecoderData.h')
| -rw-r--r-- | js/src/zydis/Zydis/Internal/DecoderData.h | 332 |
1 files changed, 332 insertions, 0 deletions
diff --git a/js/src/zydis/Zydis/Internal/DecoderData.h b/js/src/zydis/Zydis/Internal/DecoderData.h new file mode 100644 index 0000000000..b121e8d57a --- /dev/null +++ b/js/src/zydis/Zydis/Internal/DecoderData.h @@ -0,0 +1,332 @@ +/*************************************************************************************************** + + Zyan Disassembler Library (Zydis) + + Original Author : Florian Bernd + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + +***************************************************************************************************/ + +#ifndef ZYDIS_INTERNAL_DECODERDATA_H +#define ZYDIS_INTERNAL_DECODERDATA_H + +#include "zydis/Zycore/Defines.h" +#include "zydis/Zycore/Types.h" +#include "zydis/Zydis/Defines.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* ============================================================================================== */ +/* Enums and types */ +/* ============================================================================================== */ + +// MSVC does not like types other than (un-)signed int for bit-fields +#ifdef ZYAN_MSVC +# pragma warning(push) +# pragma warning(disable:4214) +#endif + +#pragma pack(push, 1) + +/* ---------------------------------------------------------------------------------------------- */ +/* Decoder tree */ +/* ---------------------------------------------------------------------------------------------- */ + +/** + * Defines the `ZydisDecoderTreeNodeType` data-type. + */ +typedef ZyanU8 ZydisDecoderTreeNodeType; + +/** + * Values that represent zydis decoder tree node types. + */ +enum ZydisDecoderTreeNodeTypes +{ + ZYDIS_NODETYPE_INVALID = 0x00, + /** + * Reference to an instruction-definition. + */ + ZYDIS_NODETYPE_DEFINITION_MASK = 0x80, + /** + * Reference to an XOP-map filter. + */ + ZYDIS_NODETYPE_FILTER_XOP = 0x01, + /** + * Reference to an VEX-map filter. + */ + ZYDIS_NODETYPE_FILTER_VEX = 0x02, + /** + * Reference to an EVEX/MVEX-map filter. + */ + ZYDIS_NODETYPE_FILTER_EMVEX = 0x03, + /** + * Reference to an opcode filter. + */ + ZYDIS_NODETYPE_FILTER_OPCODE = 0x04, + /** + * Reference to an instruction-mode filter. + */ + ZYDIS_NODETYPE_FILTER_MODE = 0x05, + /** + * Reference to an compacted instruction-mode filter. + */ + ZYDIS_NODETYPE_FILTER_MODE_COMPACT = 0x06, + /** + * Reference to a ModRM.mod filter. + */ + ZYDIS_NODETYPE_FILTER_MODRM_MOD = 0x07, + /** + * Reference to a compacted ModRM.mod filter. + */ + ZYDIS_NODETYPE_FILTER_MODRM_MOD_COMPACT = 0x08, + /** + * Reference to a ModRM.reg filter. + */ + ZYDIS_NODETYPE_FILTER_MODRM_REG = 0x09, + /** + * Reference to a ModRM.rm filter. + */ + ZYDIS_NODETYPE_FILTER_MODRM_RM = 0x0A, + /** + * Reference to a PrefixGroup1 filter. + */ + ZYDIS_NODETYPE_FILTER_PREFIX_GROUP1 = 0x0B, + /** + * Reference to a mandatory-prefix filter. + */ + ZYDIS_NODETYPE_FILTER_MANDATORY_PREFIX = 0x0C, + /** + * Reference to an operand-size filter. + */ + ZYDIS_NODETYPE_FILTER_OPERAND_SIZE = 0x0D, + /** + * Reference to an address-size filter. + */ + ZYDIS_NODETYPE_FILTER_ADDRESS_SIZE = 0x0E, + /** + * Reference to a vector-length filter. + */ + ZYDIS_NODETYPE_FILTER_VECTOR_LENGTH = 0x0F, + /** + * Reference to an REX/VEX/EVEX.W filter. + */ + ZYDIS_NODETYPE_FILTER_REX_W = 0x10, + /** + * Reference to an REX/VEX/EVEX.B filter. + */ + ZYDIS_NODETYPE_FILTER_REX_B = 0x11, + /** + * Reference to an EVEX.b filter. + */ + ZYDIS_NODETYPE_FILTER_EVEX_B = 0x12, + /** + * Reference to an MVEX.E filter. + */ + ZYDIS_NODETYPE_FILTER_MVEX_E = 0x13, + /** + * Reference to a AMD-mode filter. + */ + ZYDIS_NODETYPE_FILTER_MODE_AMD = 0x14, + /** + * Reference to a KNC-mode filter. + */ + ZYDIS_NODETYPE_FILTER_MODE_KNC = 0x15, + /** + * Reference to a MPX-mode filter. + */ + ZYDIS_NODETYPE_FILTER_MODE_MPX = 0x16, + /** + * Reference to a CET-mode filter. + */ + ZYDIS_NODETYPE_FILTER_MODE_CET = 0x17, + /** + * Reference to a LZCNT-mode filter. + */ + ZYDIS_NODETYPE_FILTER_MODE_LZCNT = 0x18, + /** + * Reference to a TZCNT-mode filter. + */ + ZYDIS_NODETYPE_FILTER_MODE_TZCNT = 0x19, + /** + * Reference to a WBNOINVD-mode filter. + */ + ZYDIS_NODETYPE_FILTER_MODE_WBNOINVD = 0x1A, + /** + * Reference to a CLDEMOTE-mode filter. + */ + ZYDIS_NODETYPE_FILTER_MODE_CLDEMOTE = 0x1B +}; + +/* ---------------------------------------------------------------------------------------------- */ + +/** + * Defines the `ZydisDecoderTreeNodeValue` data-type. + */ +typedef ZyanU16 ZydisDecoderTreeNodeValue; + +/* ---------------------------------------------------------------------------------------------- */ + +/** + * Defines the `ZydisDecoderTreeNode` struct. + */ +typedef struct ZydisDecoderTreeNode_ +{ + ZydisDecoderTreeNodeType type; + ZydisDecoderTreeNodeValue value; +} ZydisDecoderTreeNode; + +/* ---------------------------------------------------------------------------------------------- */ + +#pragma pack(pop) + +#ifdef ZYAN_MSVC +# pragma warning(pop) +#endif + +/* ---------------------------------------------------------------------------------------------- */ +/* Physical instruction encoding info */ +/* ---------------------------------------------------------------------------------------------- */ + +/** + * Defines the `ZydisInstructionEncodingFlags` data-type. + */ +typedef ZyanU8 ZydisInstructionEncodingFlags; + +/** + * The instruction has an optional modrm byte. + */ +#define ZYDIS_INSTR_ENC_FLAG_HAS_MODRM 0x01 + +/** + * The instruction has an optional displacement value. + */ +#define ZYDIS_INSTR_ENC_FLAG_HAS_DISP 0x02 + +/** + * The instruction has an optional immediate value. + */ +#define ZYDIS_INSTR_ENC_FLAG_HAS_IMM0 0x04 + +/** + * The instruction has a second optional immediate value. + */ +#define ZYDIS_INSTR_ENC_FLAG_HAS_IMM1 0x08 + +/** + * The instruction ignores the value of `modrm.mod` and always assumes `modrm.mod == 3` + * ("reg, reg" - form). + * + * Instructions with this flag can't have a SIB byte or a displacement value. + */ +#define ZYDIS_INSTR_ENC_FLAG_FORCE_REG_FORM 0x10 + +/** + * Defines the `ZydisInstructionEncodingInfo` struct. + */ +typedef struct ZydisInstructionEncodingInfo_ +{ + /** + * Contains flags with information about the physical instruction-encoding. + */ + ZydisInstructionEncodingFlags flags; + /** + * Displacement info. + */ + struct + { + /** + * The size of the displacement value. + */ + ZyanU8 size[3]; + } disp; + /** + * Immediate info. + */ + struct + { + /** + * The size of the immediate value. + */ + ZyanU8 size[3]; + /** + * Signals, if the value is signed. + */ + ZyanBool is_signed; + /** + * Signals, if the value is a relative offset. + */ + ZyanBool is_relative; + } imm[2]; +} ZydisInstructionEncodingInfo; + +/* ---------------------------------------------------------------------------------------------- */ + +/* ============================================================================================== */ +/* Functions */ +/* ============================================================================================== */ + +/* ---------------------------------------------------------------------------------------------- */ +/* Decoder tree */ +/* ---------------------------------------------------------------------------------------------- */ + +extern const ZydisDecoderTreeNode zydis_decoder_tree_root; + +/** + * Returns the root node of the instruction tree. + * + * @return The root node of the instruction tree. + */ +ZYAN_INLINE const ZydisDecoderTreeNode* ZydisDecoderTreeGetRootNode(void) +{ + return &zydis_decoder_tree_root; +} + +/** + * Returns the child node of `parent` specified by `index`. + * + * @param parent The parent node. + * @param index The index of the child node to retrieve. + * + * @return The specified child node. + */ +ZYDIS_NO_EXPORT const ZydisDecoderTreeNode* ZydisDecoderTreeGetChildNode( + const ZydisDecoderTreeNode* parent, ZyanU16 index); + +/** + * Returns information about optional instruction parts (like modrm, displacement or + * immediates) for the instruction that is linked to the given `node`. + * + * @param node The instruction definition node. + * @param info A pointer to the `ZydisInstructionParts` struct. + */ +ZYDIS_NO_EXPORT void ZydisGetInstructionEncodingInfo(const ZydisDecoderTreeNode* node, + const ZydisInstructionEncodingInfo** info); + +/* ---------------------------------------------------------------------------------------------- */ + +/* ============================================================================================== */ + +#ifdef __cplusplus +} +#endif + +#endif /* ZYDIS_INTERNAL_DECODERDATA_H */ |