from enum import Enum SectionID = {0:"custom", 1:"type", 2:"import", 3:"function", 4:"table", 5:"memory", 6:"global", 7:"export", 8:"start", 9:"element", 10:"code", 11:"data", 63:"unknown"} class RelocType(Enum): R_WEBASSEMBLY_FUNCTION_INDEX_LEB = 0 R_WEBASSEMBLY_TABLE_INDEX_SLEB = 1 R_WEBASSEMBLY_TABLE_INDEX_I32 = 2 R_WEBASSEMBLY_MEMORY_ADDR_LEB = 3 R_WEBASSEMBLY_MEMORY_ADDR_SLEB = 4 R_WEBASSEMBLY_MEMORY_ADDR_I32 = 5 R_WEBASSEMBLY_TYPE_INDEX_LEB = 6 R_WEBASSEMBLY_GLOBAL_INDEX_LEB = 7 R_WEBASSEMPLY_FUNCTION_OFFSET_I32 = 8 R_WEBASSEMBLY_SECTION_OFFSET_I32 = 9 class LinkingSubsection(Enum): WASM_SEGMENT_INFO = 5 WASM_INIT_FUNCS = 6 WASM_COMDAT_INFO = 7 WASM_SYMBOL_TABLE = 8 class TypeType(Enum): none = 1 lebu = 2 lebs = 3 flot = 4 dobl = 5 class Syminfo_Kind(): SYMTAB_FUNCTION = 0 SYMTAB_DATA = 1 SYMTAB_GLOBAL = 2 SYMTAB_SECTION = 3 TypeKS = [['uint8', 8, TypeType.none], ['uint16', 16, TypeType.none], ['uint32', 32, TypeType.none], ['uint64', 64, TypeType.none], ['varuint1', 1, TypeType.lebu], ['varuint7', 7, TypeType.lebu], ['varuint32', 32, TypeType.lebu], ['varuint64', 64, TypeType.lebu], ['varint1', 1, TypeType.lebs], ['varint7', 7, TypeType.lebs], ['varint32', 32, TypeType.lebs], ['varint64', 64, TypeType.lebs]] TypeDic = {'uint8': 1, 'uint16': 2, 'uint32': 4, 'uint64': 8, 'varuint1': 1, 'varuint7': 1, 'varuint32': 4, 'varuint64': 8, 'varint1': 1, 'varint7': 1, 'varint32': 4, 'varint64': 8} # holds the version 1.0 wasm opcodes and immediates class WASM_OP_Code: version_number = 0x01 magic_number = 0x6d736100 PAGE_SIZE = 65536 uint8 = 1 uint16 = 2 uint32 = 4 uint64 = 8 varuint1 = 1 varuint7 = 1 varuint32 = 4 varuint64 = 8 varint1 = 1 varint7 = 1 varint32 = 4 varint64 = 8 floatt = 4 doublet = 8 all_ops = [('i32', '7f', False), ('i64', '7e', False), ('f32', '7d', False), ('f64', '7c', False), ('anyfunc', '7b', False), ('func', '60', False), ('empty_block_type', '40', False), ('unreachable', '00', False), ('nop', '01', False), ('block', '02', True, ('varuint7')), ('loop', '03', True, ('varuint7')), ('if', '04', True, ('varuint7')), ('else', '05', False), ('end', '0b', False), ('br', '0c', True, ('varuint32')), ('br_if', '0d', True, ('varuint32')), ('br_table', '0e', True, ('varuint32', 'varuint32', 'varuint32')), ('return', '0f', False), ('call', '10', True, ('varuint32')), ('call_indirect', '11', True, ('varuint32', 'varuint1')), ('drop', '1a', False), ('select', '1b', False), ('get_local', '20', True, ('varuint32')), ('set_local', '21', True, ('varuint32')), ('tee_local', '22', True, ('varuint32')), ('get_global', '23', True, ('varuint32')), ('set_global', '24', True, ('varuint32')), ('i32.load', '28', True, ('varuint32', 'varuint32')), ('i64.load', '29', True, ('varuint32', 'varuint32')), ('f32.load', '2a', True, ('varuint32', 'varuint32')), ('f64.load', '2b', True, ('varuint32', 'varuint32')), ('i32.load8_s', '2c', True, ('varuint32', 'varuint32')), ('i32.load8_u', '2d', True, ('varuint32', 'varuint32')), ('i32.load16_s', '2e', True, ('varuint32', 'varuint32')), ('i32.load16_u', '2f', True, ('varuint32', 'varuint32')), ('i64.load8_s', '30', True, ('varuint32', 'varuint32')), ('i64.load8_u', '31', True, ('varuint32', 'varuint32')), ('i64.load16_s', '32', True, ('varuint32', 'varuint32')), ('i64.load16_u', '33', True, ('varuint32', 'varuint32')), ('i64.load32_s', '34', True, ('varuint32', 'varuint32')), ('i64.load32_u', '35', True, ('varuint32', 'varuint32')), ('i32.store', '36', True, ('varuint32', 'varuint32')), ('i64.store', '37', True, ('varuint32', 'varuint32')), ('f32.store', '38', True, ('varuint32', 'varuint32')), ('f64.store', '39', True, ('varuint32', 'varuint32')), ('i32.store8', '3a', True, ('varuint32', 'varuint32')), ('i32.store16', '3b', True, ('varuint32', 'varuint32')), ('i64.store8', '3c', True, ('varuint32', 'varuint32')), ('i64.store16', '3d', True, ('varuint32', 'varuint32')), ('i64.store32', '3e', True, ('varuint32', 'varuint32')), ('current_memory', '3f', True, ('varuint1')), ('grow_memory', '40', True, ('varuint1')), ('i32.const', '41', True, ('varint32')), ('i64.const', '42', True, ('varint64')), ('f32.const', '43', True, ('uint32')), ('f64.const', '44', True, ('uint64')), ('i32.eqz', '45', False), ('i32.eq', '46', False), ('i32.ne', '47', False), ('i32.lt_s', '48', False), ('i32.lt_u', '49', False), ('i32.gt_s', '4a', False), ('i32.gt_u', '4b', False), ('i32.le_s', '4c', False), ('i32.le_u', '4d', False), ('i32.ge_s', '4e', False), ('i32.ge_u', '4f', False), ('i64.eqz', '50', False), ('i64.eq', '51', False), ('i64.ne', '52', False), ('i64.lt_s', '53', False), ('i64.lt_u', '54', False), ('i64.gt_s', '55', False), ('i64.gt_u', '56', False), ('i64.le_s', '57', False), ('i64.le_u', '58', False), ('i64.ge_s', '59', False), ('i64.ge_u', '5a', False), ('f32.eq', '5b', False), ('f32.ne', '5c', False), ('f32.lt', '5d', False), ('f32.gt', '5e', False), ('f32.le', '5f', False), ('f32.ge', '60', False), ('f64.eq', '61', False), ('f64.ne', '62', False), ('f64.lt', '63', False), ('f64.gt', '64', False), ('f64.le', '65', False), ('f64.ge', '66', False), ('i32.clz', '67', False), ('i32.ctz', '68', False), ('i32.popcnt', '69', False), ('i32.add', '6a', False), ('i32.sub', '6b', False), ('i32.mul', '6c', False), ('i32.div_s', '6d', False), ('i32.div_u', '6e', False), ('i32.rem_s', '6f', False), ('i32.rem_u', '70', False), ('i32.and', '71', False), ('i32.or', '72', False), ('i32.xor', '73', False), ('i32.shl', '74', False), ('i32.shr_s', '75', False), ('i32.shr_u', '76', False), ('i32.rotl', '77', False), ('i32.rotr', '78', False), ('i64.clz', '79', False), ('i64.ctz', '7a', False), ('i64.popcnt', '7b', False), ('i64.add', '7c', False), ('i64.sub', '7d', False), ('i64.mul', '7e', False), ('i64.div_s', '7f', False), ('i64.div_u', '80', False), ('i64.rem_s', '81', False), ('i64.rem_u', '82', False), ('i64.and', '83', False), ('i64.or', '84', False), ('i64.xor', '85', False), ('i64.shl', '86', False), ('i64.shr_s', '87', False), ('i64.shr_u', '88', False), ('i64.rotl', '89', False), ('i63.rotr', '8a', False), ('f32.abs', '8b', False), ('f32.neg', '8c', False), ('f32.ceil', '8d', False), ('f32.floor', '8e', False), ('f32.trunc', '8f', False), ('f32.nearest', '90', False), ('f32.sqrt', '91', False), ('f32.add', '92', False), ('f32.sub', '93', False), ('f32.mul', '94', False), ('f32.div', '95', False), ('f32.min', '96', False), ('f32.max', '97', False), ('f32.copysign', '98', False), ('f64.abs', '99', False), ('f64.neg', '9a', False), ('f64.ceil', '9b', False), ('f64.floor', '9c', False), ('f64.trunc', '9d', False), ('f64.nearest', '9e', False), ('f64.sqrt', '9f', False), ('f64.add', 'a0', False), ('f64.sub', 'a1', False), ('f64.mul', 'a2', False), ('f64.div', 'a3', False), ('f64.min', 'a4', False), ('f64.max', 'a5', False), ('f64.copysign', 'a6', False), ('i32.wrap/i64', 'a7', False), ('i32.trunc_s/f32', 'a8', False), ('i32.trunc_u/f32', 'a9', False), ('i32.trunc_s/f64', 'aa', False), ('i32.trunc_u/f64', 'ab', False), ('i64.extend_s/i32', 'ac', False), ('i64.extend_u/i32', 'ad', False), ('i64.trunc_s/f32', 'ae', False), ('i64.trunc_u/f32', 'af', False), ('i64.trunc_s/f64', 'b0', False), ('i64.trunc_u/f64', 'b1', False), ('f32.convert_s/i32', 'b2', False), ('f32.convert_u/i32', 'b3', False), ('f32.convert_s/i64', 'b4', False), ('f32.convert_u/i64', 'b5', False), ('f32.demote/f64', 'b6', False), ('f64.convert_s/i32', 'b7', False), ('f64.convert_u/i32', 'b8', False), ('f64.convert_s/i64', 'b9', False), ('f64.convert_u/i64', 'ba', False), ('f64.promote/f32', 'bb', False), ('i32.reinterpret/f32', 'bc', False), ('i64.reinterpret/f64', 'bd', False), ('f32.reinterpret/i32', 'be', False), ('f64.reinterpret/i64', 'bf', False)] type_ops = [('i32', '7f'), ('i64', '7e'), ('f32', '7d'), ('f64', '7c'), ('anyfunc', '7b'), ('func', '60'), ('empty_block_type', '40')] type_ops_dict = dict(type_ops) type_ops_dict_rev = {v: k for k, v in type_ops_dict.items()} control_flow_ops = [('unreachable', '00'), ('nop', '01'), ('block', '02'), ('loop', '03'), ('if', '04'), ('else', '05'), ('end', '0b'), ('br', '0c'), ('br_if', '0d'), ('br_table', '0e'), ('return', '0f')] control_flow_ops_dict = dict(control_flow_ops) control_flow_ops_dict_rev = {v: k for k, v in control_flow_ops_dict.items()} call_ops = [('call', '10'), ('call_indirect', '11')] call_ops_dict = dict(call_ops) call_ops_dict_rev = {v: k for k, v in call_ops_dict.items()} param_ops = [('drop', '1a'), ('select', '1b')] param_ops_dict = dict(param_ops) param_ops_dict_rev = {v: k for k, v in param_ops_dict.items()} var_access = [('get_local', '20'), ('set_local', '21'), ('tee_local', '22'), ('get_global', '23'), ('set_global', '24')] var_access_dict = dict(var_access) var_access_dict_rev = {v: k for k, v in var_access_dict.items()} mem_ops = [('i32.load', '28'), ('i64.load', '29'), ('f32.load', '2a'), ('f64.load', '2b'), ('i32.load8_s', '2c'), ('i32.load8_u', '2d'), ('i32.load16_s', '2e'), ('i32.load16_u', '2f'), ('i64.load8_s', '30'), ('i64.load8_u', '31'), ('i64.load16_s', '32'), ('i64.load16_u', '33'), ('i64.load32_s', '34'), ('i64.load32_u', '35'), ('i32.store', '36'), ('i64.store', '37'), ('f32.store', '38'), ('f64.store', '39'), ('i32.store8', '3a'), ('i32.store16', '3b'), ('i64.store8', '3c'), ('i64.store16', '3d'), ('i64.store32', '3e'), ('current_memory', '3f'), ('grow_memory', '40')] mem_ops_dict = dict(mem_ops) mem_ops_dict_rev = {v: k for k, v in mem_ops_dict.items()} consts = [('i32.const', '41'), ('i64.const', '42'), ('f32.const', '43'), ('f64', '44')] consts_dict = dict(consts) consts_dict_rev = {v: k for k, v in consts_dict.items()} comp_ops = [('i32.eqz', '45'), ('i32.eq', '46'), ('i32.ne', '47'), ('i32.lt_s', '48'), ('i32.lt_u', '49'), ('i32.gt_s', '4a'), ('i32.gt_u', '4b'), ('i32.le_s', '4c'), ('i32.le_u', '4d'), ('i32.ge_s', '4e'), ('i32.ge_u', '4f'), ('i64.eqz', '50'), ('i64.eq', '51'), ('i64.ne', '52'), ('i64.lt_s', '53'), ('i64.lt_u', '54'), ('i64.gt_s', '55'), ('i64.gt_u', '56'), ('i64.le_s', '57'), ('i64.le_u', '58'), ('i64.ge_s', '59'), ('i64.ge_u', '5a'), ('f32.eq', '5b'), ('f32.ne', '5c'), ('f32.lt', '5d'), ('f32.gt', '5e'), ('f32.le', '5f'), ('f32.ge', '60'), ('f64.eq', '61'), ('f64.ne', '62'), ('f64.lt', '63'), ('f64.gt', '64'), ('f64.le', '65'), ('f64.ge', '66')] comp_ops_dict = dict(comp_ops) comp_ops_dict_rev = {v: k for k, v in comp_ops_dict.items()} num_ops = [('i32.clz', '67'), ('i32.ctz', '68'), ('i32.popcnt', '69'), ('i32.add', '6a'), ('i32.sub', '6b'), ('i32.mul', '6c'), ('i32.div_s', '6d'), ('i32.div_u', '6e'), ('i32.rem_s', '6e'), ('i32.rem_u', '70'), ('i32.and', '71'), ('i32.or', '72'), ('i32.xor', '73'), ('i32.shl', '74'), ('i32.shr_s', '75'), ('i32.shr_u', '76'), ('i32.rotl', '77'), ('i32.rotr', '78'), ('i64.clz', '79'), ('i64.ctz', '7a'), ('i64.popcnt', '7b'), ('i64.add', '7c'), ('i64.sub', '7d'), ('i64.mul', '7e'), ('i64.div_s', '7f'), ('i64.div_u', '80'), ('i64.rem_s', '81'), ('i64.rem_u', '82'), ('i64.and', '83'), ('i64.or', '84'), ('i64.xor', '85'), ('i64.shl', '86'), ('i64.shr_s', '87'), ('i64.shr_u', '88'), ('i64.rotl', '89'), ('i63.rotr', '8a'), ('f32.abs', '8b'), ('f32.neg', '8c'), ('f32.ceil', '8d'), ('f32.floor', '8e'), ('f32.trunc', '8f'), ('f32.nearest', '90'), ('f32.sqrt', '91'), ('f32.add', '92'), ('f32.sub', '93'), ('f32.mul', '94'), ('f32.div', '95'), ('f32.min', '96'), ('f32.max', '97'), ('f32.copysign', '98'), ('f64.abs', '99'), ('f64.neg', '9a'), ('f64.ceil', '9b'), ('f64.floor', '9c'), ('f64.trunc', '9d'), ('f64.nearest', '9e'), ('f64.sqrt', '9f'), ('f64.add', 'a0'), ('f64.sub', 'a1'), ('f64.mul', 'a2'), ('f64.div', 'a3'), ('f64.min', 'a4'), ('f64.max', 'a5'), ('f64.copysign', 'a6')] num_ops_dict = dict(num_ops) num_ops_dict_rev = {v: k for k, v in num_ops_dict.items()} conversion = [('i32.wrap/i64', 'a7'), ('i32.trunc_s/f32', 'a8'), ('i32.trunc_u/f32', 'a9'), ('i32.trunc_s/f64', 'aa'), ('i32.trunc_u/f64', 'ab'), ('i64.extend_s/i32', 'ac'), ('i64.extend_u/i32', 'ad'), ('i64.trunc_s/f32', 'ae'), ('i64.trunc_u/f32', 'af'), ('i64.trunc_s/f64', 'b0'), ('i64.trunc_u/f64', 'b1'), ('f32.convert_s/i32', 'b2'), ('f32.convert_u/i32', 'b3'), ('f32.convert_s/i64', 'b4'), ('f32.convert_u/i64', 'b5'), ('f32.demote/f64', 'b6'), ('f64.convert_s/i32', 'b7'), ('f64.convert_u/i32', 'b8'), ('f64.convert_s/i64', 'b9'), ('f64.convert_u/i64', 'ba'), ('f64.promote/f32', 'bb')] conversion_dict = dict(conversion) conversion_dict_rev = {v: k for k, v in conversion_dict.items()} reinterpretations = [('i32.reinterpret/f32', 'bc'), ('i64.reinterpret/f64', 'bd'), ('f32.reinterpret/i32', 'be'), ('f64.reinterpret/i64', 'bf')] reinterpretations_dict = dict(reinterpretations) reinterpretations_dict_rev = {v: k for k, v in reinterpretations_dict.items()} section_code = [('type', '01'), ('import', '02'), ('function', '03'), ('table', '04'), ('memory', '05'), ('global', '06'), ('export', '07'), ('start', '08'), ('element', '09'), ('code', '0a'), ('data', '0b'), ('custom', '00')] section_code_dict = dict(section_code) section_code_dict_rev = {v: k for k, v in section_code_dict.items()}