1 /* BFD back-end for WebAssembly modules.
2 Copyright (C) 2017-2018 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
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.
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.
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. */
21 #ifndef _WASM_MODULE_H
22 #define _WASM_MODULE_H
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 }
31 /* Prefix to use to form section names. */
32 #define WASM_SECTION_PREFIX ".wasm."
34 /* NUMBER is currently unused, but is included for error checking purposes. */
35 #define WASM_SECTION(number, name) (WASM_SECTION_PREFIX name)
37 /* Section names. WASM_NAME_SECTION is the name of the named section
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")
44 /* Subsection indices. Right now, that's subsections of the "name"
46 #define WASM_FUNCTION_SUBSECTION 1 /* Function names. */
47 #define WASM_LOCALS_SUBSECTION 2 /* Names of locals by function. */
49 /* The section to report wasm symbols in. */
50 #define WASM_SECTION_FUNCTION_INDEX ".space.function_index"
52 #endif /* _WASM_MODULE_H */