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/*
* BinReloc - a library for creating relocatable executables
* Written by: Mike Hearn <mike@theoretic.com>
* Hongli Lai <h.lai@chello.nl>
* http://autopackage.org/
*
* This source code is public domain. You can relicense this code
* under whatever license you want.
*
* See http://autopackage.org/docs/binreloc/ for
* more information and how to use this.
*
* NOTE: if you're using C++ and are getting "undefined reference
* to br_*", try renaming prefix.c to prefix.cpp
*/
#ifndef _PREFIX_H_
#define _PREFIX_H_
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/* WARNING, BEFORE YOU MODIFY PREFIX.C:
*
* If you make changes to any of the functions in prefix.c, you MUST
* change the BR_NAMESPACE macro.
* This way you can avoid symbol table conflicts with other libraries
* that also happen to use BinReloc.
*
* Example:
* #define BR_NAMESPACE(funcName) foobar_ ## funcName
* --> expands br_locate to foobar_br_locate
*/
#undef BR_NAMESPACE
#define BR_NAMESPACE(funcName) funcName
#ifdef ENABLE_BINRELOC
#define br_thread_local_store BR_NAMESPACE(br_thread_local_store)
#define br_locate BR_NAMESPACE(br_locate)
#define br_locate_prefix BR_NAMESPACE(br_locate_prefix)
#define br_prepend_prefix BR_NAMESPACE(br_prepend_prefix)
#ifndef BR_NO_MACROS
/* These are convience macros that replace the ones usually used
in Autoconf/Automake projects */
#undef SELFPATH
#undef PREFIX
#undef PREFIXDIR
#undef BINDIR
#undef SBINDIR
#undef DATADIR
#undef LIBDIR
#undef LIBEXECDIR
#undef ETCDIR
#undef SYSCONFDIR
#undef CONFDIR
#undef LOCALEDIR
#define SELFPATH (br_thread_local_store (br_locate ((void *) "")))
#define PREFIX (br_thread_local_store (br_locate_prefix ((void *) "")))
#define PREFIXDIR (br_thread_local_store (br_locate_prefix ((void *) "")))
#define BINDIR (br_thread_local_store (br_prepend_prefix ((void *) "", "/bin")))
#define SBINDIR (br_thread_local_store (br_prepend_prefix ((void *) "", "/sbin")))
#define DATADIR (br_thread_local_store (br_prepend_prefix ((void *) "", "/share")))
#define LIBDIR (br_thread_local_store (br_prepend_prefix ((void *) "", "/lib")))
#define LIBEXECDIR (br_thread_local_store (br_prepend_prefix ((void *) "", "/libexec")))
#define ETCDIR (br_thread_local_store (br_prepend_prefix ((void *) "", "/etc")))
#define SYSCONFDIR (br_thread_local_store (br_prepend_prefix ((void *) "", "/etc")))
#define CONFDIR (br_thread_local_store (br_prepend_prefix ((void *) "", "/etc")))
#define LOCALEDIR (br_thread_local_store (br_prepend_prefix ((void *) "", "/share/locale")))
#define LOCALSTATEDIR (br_thread_local_store (br_prepend_prefix ((void *) "", "/var")))
#endif /* BR_NO_MACROS */
/* The following functions are used internally by BinReloc
and shouldn't be used directly in applications. */
char *br_locate (void *symbol);
char *br_locate_prefix (void *symbol);
char *br_prepend_prefix (void *symbol, char *path);
#endif /* ENABLE_BINRELOC */
const char *br_thread_local_store (char *str);
/* These macros and functions are not guarded by the ENABLE_BINRELOC
* macro because they are portable. You can use these functions.
*/
#define br_strcat BR_NAMESPACE(br_strcat)
#define br_extract_dir BR_NAMESPACE(br_extract_dir)
#define br_extract_prefix BR_NAMESPACE(br_extract_prefix)
#define br_set_locate_fallback_func BR_NAMESPACE(br_set_locate_fallback_func)
#ifndef BR_NO_MACROS
#ifndef ENABLE_BINRELOC
#define BR_SELFPATH(suffix) SELFPATH suffix
#define BR_PREFIX(suffix) PREFIX suffix
#define BR_PREFIXDIR(suffix) BR_PREFIX suffix
#define BR_BINDIR(suffix) BINDIR suffix
#define BR_SBINDIR(suffix) SBINDIR suffix
#define BR_DATADIR(suffix) DATADIR suffix
#define BR_LIBDIR(suffix) LIBDIR suffix
#define BR_LIBEXECDIR(suffix) LIBEXECDIR suffix
#define BR_ETCDIR(suffix) ETCDIR suffix
#define BR_SYSCONFDIR(suffix) SYSCONFDIR suffix
#define BR_CONFDIR(suffix) CONFDIR suffix
#define BR_LOCALEDIR(suffix) LOCALEDIR suffix
#else
#define BR_SELFPATH(suffix) (br_thread_local_store (br_strcat (SELFPATH, suffix)))
#define BR_PREFIX(suffix) (br_thread_local_store (br_strcat (PREFIX, suffix)))
#define BR_PREFIXDIR(suffix) (br_thread_local_store (br_strcat (BR_PREFIX, suffix)))
#define BR_BINDIR(suffix) (br_thread_local_store (br_strcat (BINDIR, suffix)))
#define BR_SBINDIR(suffix) (br_thread_local_store (br_strcat (SBINDIR, suffix)))
#define BR_DATADIR(suffix) (br_thread_local_store (br_strcat (DATADIR, suffix)))
#define BR_LIBDIR(suffix) (br_thread_local_store (br_strcat (LIBDIR, suffix)))
#define BR_LIBEXECDIR(suffix) (br_thread_local_store (br_strcat (LIBEXECDIR, suffix)))
#define BR_ETCDIR(suffix) (br_thread_local_store (br_strcat (ETCDIR, suffix)))
#define BR_SYSCONFDIR(suffix) (br_thread_local_store (br_strcat (SYSCONFDIR, suffix)))
#define BR_CONFDIR(suffix) (br_thread_local_store (br_strcat (CONFDIR, suffix)))
#define BR_LOCALEDIR(suffix) (br_thread_local_store (br_strcat (LOCALEDIR, suffix)))
#endif
#endif
char *br_strcat (const char *str1, const char *str2);
char *br_extract_dir (const char *path);
char *br_extract_prefix(const char *path);
typedef char *(*br_locate_fallback_func) (void *symbol, void *data);
void br_set_locate_fallback_func (br_locate_fallback_func func, void *data);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _PREFIX_H_ */
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