1 /* BFD back-end for WebAssembly modules. 2 Copyright (C) 2017-2024 Free Software Foundation, Inc. 3 4 This file is part of BFD, the Binary File Descriptor library. 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 3 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software 18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 19 MA 02110-1301, USA. */ 20 21 #ifndef _WASM_MODULE_H 22 #define _WASM_MODULE_H 23 24 /* WebAssembly module file header. Note that WASM_VERSION is a 32-bit 25 little-endian integer, not an LEB128-encoded integer. */ 26 #define SIZEOF_WASM_MAGIC 4 27 #define WASM_MAGIC { 0x00, 'a', 's', 'm' } 28 #define SIZEOF_WASM_VERSION 4 29 #define WASM_VERSION { 0x01, 0x00, 0x00, 0x00 } 30 31 /* Prefix to use to form section names. */ 32 #define WASM_SECTION_PREFIX ".wasm." 33 34 /* NUMBER is currently unused, but is included for error checking purposes. */ 35 #define WASM_SECTION(number, name) (WASM_SECTION_PREFIX name) 36 37 /* Section names. WASM_NAME_SECTION is the name of the named section 38 named "name". */ 39 #define WASM_NAME_SECTION WASM_SECTION (0, "name") 40 #define WASM_RELOC_SECTION_PREFIX WASM_SECTION (0, "reloc.") 41 #define WASM_LINKING_SECTION WASM_SECTION (0, "linking") 42 #define WASM_DYLINK_SECTION WASM_SECTION (0, "dylink") 43 44 /* Subsection indices. Right now, that's subsections of the "name" 45 section only. */ 46 #define WASM_FUNCTION_SUBSECTION 1 /* Function names. */ 47 #define WASM_LOCALS_SUBSECTION 2 /* Names of locals by function. */ 48 49 /* The section to report wasm symbols in. */ 50 #define WASM_SECTION_FUNCTION_INDEX ".space.function_index" 51 52 #endif /* _WASM_MODULE_H */ 53