src/prefix.h

   1 /*
   2  * BinReloc - a library for creating relocatable executables
   3  * Written by: Mike Hearn <mike@theoretic.com>
   4  *             Hongli Lai <h.lai@chello.nl>
   5  * http://autopackage.org/
   6  *
   7  * This source code is public domain. You can relicense this code
   8  * under whatever license you want.
   9  *
  10  * See http://autopackage.org/docs/binreloc/ for
  11  * more information and how to use this.
  12  *
  13  * NOTE: if you're using C++ and are getting "undefined reference
  14  * to br_*", try renaming prefix.c to prefix.cpp
  15  */
  16
  17 #ifndef GEANY_PREFIX_H
  18 #define GEANY_PREFIX_H 1
  19
  20
  21 /*
  22  * enrico - all the code below is only compiled and used if ENABLE_BINRELOC is set in config.h,
  23  *          this only happens if configure option --enable-binreloc was used
  24  */
  25 #ifdef ENABLE_BINRELOC
  26
  27 #include <glib.h>
  28
  29 G_BEGIN_DECLS
  30
  31
  32 /* WARNING, BEFORE YOU MODIFY PREFIX.C:
  33  *
  34  * If you make changes to any of the functions in prefix.c, you MUST
  35  * change the BR_NAMESPACE macro.
  36  * This way you can avoid symbol table conflicts with other libraries
  37  * that also happen to use BinReloc.
  38  *
  39  * Example:
  40  * #define BR_NAMESPACE(funcName) foobar_ ## funcName
  41  * --> expands br_locate to foobar_br_locate
  42  */
  43 #undef BR_NAMESPACE
  44 #define BR_NAMESPACE(funcName) geany_ ## funcName
  45
  46
  47 #define br_thread_local_store BR_NAMESPACE(br_thread_local_store)
  48 #define br_locate BR_NAMESPACE(br_locate)
  49 #define br_locate_prefix BR_NAMESPACE(br_locate_prefix)
  50 #define br_prepend_prefix BR_NAMESPACE(br_prepend_prefix)
  51
  52 #ifndef BR_NO_MACROS
  53         /* These are convience macros that replace the ones usually used
  54            in Autoconf/Automake projects */
  55         #undef SELFPATH
  56         #undef PREFIX
  57         #undef PREFIXDIR
  58         #undef BINDIR
  59         #undef SBINDIR
  60         #undef DATADIR
  61         #undef LIBDIR
  62         #undef LIBEXECDIR
  63         #undef ETCDIR
  64         #undef SYSCONFDIR
  65         #undef CONFDIR
  66         #undef LOCALEDIR
  67         #undef GEANY_PREFIX
  68         #undef GEANY_DATADIR
  69         #undef GEANY_LIBDIR
  70         #undef GEANY_LIBEXECDIR
  71         #undef GEANY_DOCDIR
  72         #undef GEANY_LOCALEDIR
  73
  74         #define SELFPATH        (br_thread_local_store (br_locate ((void *) "")))
  75         #define PREFIXDIR       (br_thread_local_store (br_locate_prefix ((void *) "")))
  76         #define BINDIR          (br_thread_local_store (br_prepend_prefix ((void *) "", "/bin")))
  77         #define SBINDIR         (br_thread_local_store (br_prepend_prefix ((void *) "", "/sbin")))
  78         #define LIBEXECDIR      (br_thread_local_store (br_prepend_prefix ((void *) "", "/libexec")))
  79         #define ETCDIR          (br_thread_local_store (br_prepend_prefix ((void *) "", "/etc")))
  80         #define SYSCONFDIR      (br_thread_local_store (br_prepend_prefix ((void *) "", "/etc")))
  81         #define CONFDIR         (br_thread_local_store (br_prepend_prefix ((void *) "", "/etc")))
  82         #define GEANY_PREFIX            (br_thread_local_store (br_locate_prefix ((void *) "")))
  83         #define GEANY_DATADIR           (br_thread_local_store (br_prepend_prefix ((void *) "", "/share")))
  84         #define GEANY_LIBDIR            (br_thread_local_store (br_prepend_prefix ((void *) "", "/lib")))
  85         #define GEANY_LIBEXECDIR        (br_thread_local_store (br_prepend_prefix ((void *) "", "/libexec/geany")))
  86         #define GEANY_DOCDIR            (br_thread_local_store (br_prepend_prefix ((void *) "", "/share/doc/geany")))
  87         #define GEANY_LOCALEDIR         (br_thread_local_store (br_prepend_prefix ((void *) "", "/share/locale")))
  88 #endif /* BR_NO_MACROS */
  89
  90
  91 /* The following functions are used internally by BinReloc
  92    and shouldn't be used directly in applications. */
  93
  94 const char *br_thread_local_store (char *str);
  95 char *br_locate         (void *symbol);
  96 char *br_locate_prefix  (void *symbol);
  97 char *br_prepend_prefix (void *symbol, char *path);
  98
  99 G_END_DECLS
 100
 101 #endif /* ENABLE_BINRELOC */
 102
 103 #endif /* GEANY_PREFIX_H */