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      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