bfd/wasm-module.h

   1 /* BFD back-end for WebAssembly modules.
   2    Copyright (C) 2017-2020 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 */