| 1 | /* ranlib.h -- archive library index member definition for GNU. |
| 2 | Copyright (C) 1990-2020 Free Software Foundation, Inc. |
| 3 | |
| 4 | This program is free software; you can redistribute it and/or modify |
| 5 | it under the terms of the GNU General Public License as published by |
| 6 | the Free Software Foundation; either version 3 of the License, or |
| 7 | (at your option) any later version. |
| 8 | |
| 9 | This program is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | GNU General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU General Public License |
| 15 | along with this program; if not, write to the Free Software |
| 16 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 17 | MA 02110-1301, USA. */ |
| 18 | |
| 19 | /* The Symdef member of an archive contains two things: |
| 20 | a table that maps symbol-string offsets to file offsets, |
| 21 | and a symbol-string table. All the symbol names are |
| 22 | run together (each with trailing null) in the symbol-string |
| 23 | table. There is a single longword bytecount on the front |
| 24 | of each of these tables. Thus if we have two symbols, |
| 25 | "foo" and "_bar", that are in archive members at offsets |
| 26 | 200 and 900, it would look like this: |
| 27 | 16 ; byte count of index table |
| 28 | 0 ; offset of "foo" in string table |
| 29 | 200 ; offset of foo-module in file |
| 30 | 4 ; offset of "bar" in string table |
| 31 | 900 ; offset of bar-module in file |
| 32 | 9 ; byte count of string table |
| 33 | "foo\0_bar\0" ; string table */ |
| 34 | |
| 35 | #define RANLIBMAG "__.SYMDEF" /* Archive file name containing index */ |
| 36 | #define RANLIBSKEW 3 /* Creation time offset */ |
| 37 | |
| 38 | /* Format of __.SYMDEF: |
| 39 | First, a longword containing the size of the 'symdef' data that follows. |
| 40 | Second, zero or more 'symdef' structures. |
| 41 | Third, a longword containing the length of symbol name strings. |
| 42 | Fourth, zero or more symbol name strings (each followed by a null). */ |
| 43 | |
| 44 | struct symdef |
| 45 | { |
| 46 | union |
| 47 | { |
| 48 | unsigned long string_offset; /* In the file */ |
| 49 | char *name; /* In memory, sometimes */ |
| 50 | } s; |
| 51 | /* this points to the front of the file header (AKA member header -- |
| 52 | a struct ar_hdr), not to the front of the file or into the file). |
| 53 | in other words it only tells you which file to read */ |
| 54 | unsigned long file_offset; |
| 55 | }; |
| 56 | |
| 57 | /* Compatability with BSD code */ |
| 58 | |
| 59 | #define ranlib symdef |
| 60 | #define ran_un s |
| 61 | #define ran_strx string_offset |
| 62 | #define ran_name name |
| 63 | #define ran_off file_offset |