projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| bf070c84 SE |
1 | /* Provide relocatable packages. |
| 2 | Copyright (C) 2003 Free Software Foundation, Inc. | |
| 3 | Written by Bruno Haible <bruno@clisp.org>, 2003. | |
| 4 | ||
| 5 | This program is free software; you can redistribute it and/or modify it | |
| 6 | under the terms of the GNU Library General Public License as published | |
| 7 | by the Free Software Foundation; either version 2, or (at your option) | |
| 8 | any later version. | |
| 9 | ||
| 10 | This program is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | Library General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Library General Public | |
| 16 | License along with this program; if not, write to the Free Software | |
| 17 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, | |
| 18 | USA. */ | |
| 19 | ||
| 20 | #ifndef _RELOCATABLE_H | |
| 21 | #define _RELOCATABLE_H | |
| 22 | ||
| 23 | /* This can be enabled through the configure --enable-relocatable option. */ | |
| 24 | #if ENABLE_RELOCATABLE | |
| 25 | ||
| 26 | /* When building a DLL, we must export some functions. Note that because | |
| 27 | this is a private .h file, we don't need to use __declspec(dllimport) | |
| 28 | in any case. */ | |
| 29 | #if defined _MSC_VER && BUILDING_DLL | |
| 30 | # define RELOCATABLE_DLL_EXPORTED __declspec(dllexport) | |
| 31 | #else | |
| 32 | # define RELOCATABLE_DLL_EXPORTED | |
| 33 | #endif | |
| 34 | ||
| 35 | /* Sets the original and the current installation prefix of the package. | |
| 36 | Relocation simply replaces a pathname starting with the original prefix | |
| 37 | by the corresponding pathname with the current prefix instead. Both | |
| 38 | prefixes should be directory names without trailing slash (i.e. use "" | |
| 39 | instead of "/"). */ | |
| 40 | extern RELOCATABLE_DLL_EXPORTED void | |
| 41 | set_relocation_prefix (const char *orig_prefix, | |
| 42 | const char *curr_prefix); | |
| 43 | ||
| 44 | /* Returns the pathname, relocated according to the current installation | |
| 45 | directory. */ | |
| 46 | extern const char * relocate (const char *pathname); | |
| 47 | ||
| 48 | /* Memory management: relocate() leaks memory, because it has to construct | |
| 49 | a fresh pathname. If this is a problem because your program calls | |
| 50 | relocate() frequently, think about caching the result. */ | |
| 51 | ||
| 52 | /* Convenience function: | |
| 53 | Computes the current installation prefix, based on the original | |
| 54 | installation prefix, the original installation directory of a particular | |
| 55 | file, and the current pathname of this file. Returns NULL upon failure. */ | |
| 56 | extern const char * compute_curr_prefix (const char *orig_installprefix, | |
| 57 | const char *orig_installdir, | |
| 58 | const char *curr_pathname); | |
| 59 | ||
| 60 | #else | |
| 61 | ||
| 62 | /* By default, we use the hardwired pathnames. */ | |
| 63 | #define relocate(pathname) (pathname) | |
| 64 | ||
| 65 | #endif | |
| 66 | ||
| 67 | #endif /* _RELOCATABLE_H */ |