/* ltdl.h -- generic dlopen functions
|
/* ltdl.h -- generic dlopen functions
|
Copyright (C) 1998-2000 Free Software Foundation, Inc.
|
Copyright (C) 1998-2000 Free Software Foundation, Inc.
|
Originally by Thomas Tanner <tanner@ffii.org>
|
Originally by Thomas Tanner <tanner@ffii.org>
|
This file is part of GNU Libtool.
|
This file is part of GNU Libtool.
|
|
|
This library is free software; you can redistribute it and/or
|
This library is free software; you can redistribute it and/or
|
modify it under the terms of the GNU Lesser General Public
|
modify it under the terms of the GNU Lesser General Public
|
License as published by the Free Software Foundation; either
|
License as published by the Free Software Foundation; either
|
version 2 of the License, or (at your option) any later version.
|
version 2 of the License, or (at your option) any later version.
|
|
|
As a special exception to the GNU Lesser General Public License,
|
As a special exception to the GNU Lesser General Public License,
|
if you distribute this file as part of a program or library that
|
if you distribute this file as part of a program or library that
|
is built using GNU libtool, you may include it under the same
|
is built using GNU libtool, you may include it under the same
|
distribution terms that you use for the rest of that program.
|
distribution terms that you use for the rest of that program.
|
|
|
This library is distributed in the hope that it will be useful,
|
This library is distributed in the hope that it will be useful,
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
Lesser General Public License for more details.
|
Lesser General Public License for more details.
|
|
|
You should have received a copy of the GNU Lesser General Public
|
You should have received a copy of the GNU Lesser General Public
|
License along with this library; if not, write to the Free
|
License along with this library; if not, write to the Free
|
Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
02110-1301 USA
|
02110-1301 USA
|
*/
|
*/
|
|
|
/* Only include this header file once. */
|
/* Only include this header file once. */
|
#ifndef LTDL_H
|
#ifndef LTDL_H
|
#define LTDL_H 1
|
#define LTDL_H 1
|
|
|
#include <sys/types.h> /* for size_t declaration */
|
#include <sys/types.h> /* for size_t declaration */
|
|
|
|
|
/* --- MACROS FOR PORTABILITY --- */
|
/* --- MACROS FOR PORTABILITY --- */
|
|
|
|
|
/* Saves on those hard to debug '\0' typos.... */
|
/* Saves on those hard to debug '\0' typos.... */
|
#define LT_EOS_CHAR '\0'
|
#define LT_EOS_CHAR '\0'
|
|
|
/* LTDL_BEGIN_C_DECLS should be used at the beginning of your declarations,
|
/* LTDL_BEGIN_C_DECLS should be used at the beginning of your declarations,
|
so that C++ compilers don't mangle their names. Use LTDL_END_C_DECLS at
|
so that C++ compilers don't mangle their names. Use LTDL_END_C_DECLS at
|
the end of C declarations. */
|
the end of C declarations. */
|
#ifdef __cplusplus
|
#ifdef __cplusplus
|
# define LT_BEGIN_C_DECLS extern "C" {
|
# define LT_BEGIN_C_DECLS extern "C" {
|
# define LT_END_C_DECLS }
|
# define LT_END_C_DECLS }
|
#else
|
#else
|
# define LT_BEGIN_C_DECLS /* empty */
|
# define LT_BEGIN_C_DECLS /* empty */
|
# define LT_END_C_DECLS /* empty */
|
# define LT_END_C_DECLS /* empty */
|
#endif
|
#endif
|
|
|
LT_BEGIN_C_DECLS
|
LT_BEGIN_C_DECLS
|
|
|
|
|
/* LT_PARAMS is a macro used to wrap function prototypes, so that compilers
|
/* LT_PARAMS is a macro used to wrap function prototypes, so that compilers
|
that don't understand ANSI C prototypes still work, and ANSI C
|
that don't understand ANSI C prototypes still work, and ANSI C
|
compilers can issue warnings about type mismatches. */
|
compilers can issue warnings about type mismatches. */
|
#if defined (__STDC__) || defined (_AIX) || (defined (__mips) && defined (_SYSTYPE_SVR4)) || defined(WIN32) || defined(__cplusplus)
|
#if defined (__STDC__) || defined (_AIX) || (defined (__mips) && defined (_SYSTYPE_SVR4)) || defined(WIN32) || defined(__cplusplus)
|
# define LT_PARAMS(protos) protos
|
# define LT_PARAMS(protos) protos
|
# define lt_ptr void*
|
# define lt_ptr void*
|
#else
|
#else
|
# define LT_PARAMS(protos) ()
|
# define LT_PARAMS(protos) ()
|
# define lt_ptr char*
|
# define lt_ptr char*
|
#endif
|
#endif
|
|
|
/* LT_STMT_START/END are used to create macros which expand to a
|
/* LT_STMT_START/END are used to create macros which expand to a
|
a single compound statement in a portable way. */
|
a single compound statement in a portable way. */
|
#if defined (__GNUC__) && !defined (__STRICT_ANSI__) && !defined (__cplusplus)
|
#if defined (__GNUC__) && !defined (__STRICT_ANSI__) && !defined (__cplusplus)
|
# define LT_STMT_START (void)(
|
# define LT_STMT_START (void)(
|
# define LT_STMT_END )
|
# define LT_STMT_END )
|
#else
|
#else
|
# if (defined (sun) || defined (__sun__))
|
# if (defined (sun) || defined (__sun__))
|
# define LT_STMT_START if (1)
|
# define LT_STMT_START if (1)
|
# define LT_STMT_END else (void)0
|
# define LT_STMT_END else (void)0
|
# else
|
# else
|
# define LT_STMT_START do
|
# define LT_STMT_START do
|
# define LT_STMT_END while (0)
|
# define LT_STMT_END while (0)
|
# endif
|
# endif
|
#endif
|
#endif
|
|
|
/* LT_CONC creates a new concatenated symbol for the compiler
|
/* LT_CONC creates a new concatenated symbol for the compiler
|
in a portable way. */
|
in a portable way. */
|
#if defined(__STDC__) || defined(__cplusplus) || defined(_MSC_VER)
|
#if defined(__STDC__) || defined(__cplusplus) || defined(_MSC_VER)
|
# define LT_CONC(s,t) s##t
|
# define LT_CONC(s,t) s##t
|
#else
|
#else
|
# define LT_CONC(s,t) s/**/t
|
# define LT_CONC(s,t) s/**/t
|
#endif
|
#endif
|
|
|
/* LT_STRLEN can be used safely on NULL pointers. */
|
/* LT_STRLEN can be used safely on NULL pointers. */
|
#define LT_STRLEN(s) (((s) && (s)[0]) ? strlen (s) : 0)
|
#define LT_STRLEN(s) (((s) && (s)[0]) ? strlen (s) : 0)
|
|
|
|
|
|
|
/* --- WINDOWS SUPPORT --- */
|
/* --- WINDOWS SUPPORT --- */
|
|
|
|
|
/* Canonicalise Windows and Cygwin recognition macros. */
|
/* Canonicalise Windows and Cygwin recognition macros. */
|
#ifdef __CYGWIN32__
|
#ifdef __CYGWIN32__
|
# ifndef __CYGWIN__
|
# ifndef __CYGWIN__
|
# define __CYGWIN__ __CYGWIN32__
|
# define __CYGWIN__ __CYGWIN32__
|
# endif
|
# endif
|
#endif
|
#endif
|
#if defined(_WIN32) || defined(WIN32)
|
#if defined(_WIN32) || defined(WIN32)
|
# ifndef __WINDOWS__
|
# ifndef __WINDOWS__
|
# ifdef _WIN32
|
# ifdef _WIN32
|
# define __WINDOWS__ _WIN32
|
# define __WINDOWS__ _WIN32
|
# else
|
# else
|
# ifdef WIN32
|
# ifdef WIN32
|
# define __WINDOWS__ WIN32
|
# define __WINDOWS__ WIN32
|
# endif
|
# endif
|
# endif
|
# endif
|
# endif
|
# endif
|
#endif
|
#endif
|
|
|
|
|
#ifdef __WINDOWS__
|
#ifdef __WINDOWS__
|
# ifndef __CYGWIN__
|
# ifndef __CYGWIN__
|
/* LT_DIRSEP_CHAR is accepted *in addition* to '/' as a directory
|
/* LT_DIRSEP_CHAR is accepted *in addition* to '/' as a directory
|
separator when it is set. */
|
separator when it is set. */
|
# define LT_DIRSEP_CHAR '\\'
|
# define LT_DIRSEP_CHAR '\\'
|
# define LT_PATHSEP_CHAR ';'
|
# define LT_PATHSEP_CHAR ';'
|
# endif
|
# endif
|
#endif
|
#endif
|
#ifndef LT_PATHSEP_CHAR
|
#ifndef LT_PATHSEP_CHAR
|
# define LT_PATHSEP_CHAR ':'
|
# define LT_PATHSEP_CHAR ':'
|
#endif
|
#endif
|
|
|
/* DLL building support on win32 hosts; mostly to workaround their
|
/* DLL building support on win32 hosts; mostly to workaround their
|
ridiculous implementation of data symbol exporting. */
|
ridiculous implementation of data symbol exporting. */
|
#ifndef LT_SCOPE
|
#ifndef LT_SCOPE
|
# ifdef __WINDOWS__
|
# ifdef __WINDOWS__
|
# ifdef LIBLTDL_DLL_EXPORT /* don't define or ld disables auto-export. */
|
# ifdef LIBLTDL_DLL_EXPORT /* don't define or ld disables auto-export. */
|
# define LT_SCOPE __declspec(dllexport)
|
# define LT_SCOPE __declspec(dllexport)
|
# endif
|
# endif
|
# ifdef LIBLTDL_DLL_IMPORT /* define if linking with this dll */
|
# ifdef LIBLTDL_DLL_IMPORT /* define if linking with this dll */
|
# define LT_SCOPE extern __declspec(dllimport)
|
# define LT_SCOPE extern __declspec(dllimport)
|
# endif
|
# endif
|
# endif
|
# endif
|
# ifndef LT_SCOPE /* static linking or !__WINDOWS__ */
|
# ifndef LT_SCOPE /* static linking or !__WINDOWS__ */
|
# define LT_SCOPE extern
|
# define LT_SCOPE extern
|
# endif
|
# endif
|
#endif
|
#endif
|
|
|
|
|
#if defined(_MSC_VER) /* Visual Studio */
|
#if defined(_MSC_VER) /* Visual Studio */
|
# define R_OK 4
|
# define R_OK 4
|
#endif
|
#endif
|
|
|
|
|
|
|
/* --- DYNAMIC MODULE LOADING API --- */
|
/* --- DYNAMIC MODULE LOADING API --- */
|
|
|
|
|
typedef struct lt_dlhandle_struct *lt_dlhandle; /* A loaded module. */
|
typedef struct lt_dlhandle_struct *lt_dlhandle; /* A loaded module. */
|
|
|
/* Initialisation and finalisation functions for libltdl. */
|
/* Initialisation and finalisation functions for libltdl. */
|
LT_SCOPE int lt_dlinit LT_PARAMS((void));
|
LT_SCOPE int lt_dlinit LT_PARAMS((void));
|
LT_SCOPE int lt_dlexit LT_PARAMS((void));
|
LT_SCOPE int lt_dlexit LT_PARAMS((void));
|
|
|
/* Module search path manipulation. */
|
/* Module search path manipulation. */
|
LT_SCOPE int lt_dladdsearchdir LT_PARAMS((const char *search_dir));
|
LT_SCOPE int lt_dladdsearchdir LT_PARAMS((const char *search_dir));
|
LT_SCOPE int lt_dlinsertsearchdir LT_PARAMS((const char *before,
|
LT_SCOPE int lt_dlinsertsearchdir LT_PARAMS((const char *before,
|
const char *search_dir));
|
const char *search_dir));
|
LT_SCOPE int lt_dlsetsearchpath LT_PARAMS((const char *search_path));
|
LT_SCOPE int lt_dlsetsearchpath LT_PARAMS((const char *search_path));
|
LT_SCOPE const char *lt_dlgetsearchpath LT_PARAMS((void));
|
LT_SCOPE const char *lt_dlgetsearchpath LT_PARAMS((void));
|
LT_SCOPE int lt_dlforeachfile LT_PARAMS((
|
LT_SCOPE int lt_dlforeachfile LT_PARAMS((
|
const char *search_path,
|
const char *search_path,
|
int (*func) (const char *filename, lt_ptr data),
|
int (*func) (const char *filename, lt_ptr data),
|
lt_ptr data));
|
lt_ptr data));
|
|
|
/* Portable libltdl versions of the system dlopen() API. */
|
/* Portable libltdl versions of the system dlopen() API. */
|
LT_SCOPE lt_dlhandle lt_dlopen LT_PARAMS((const char *filename));
|
LT_SCOPE lt_dlhandle lt_dlopen LT_PARAMS((const char *filename));
|
LT_SCOPE lt_dlhandle lt_dlopenext LT_PARAMS((const char *filename));
|
LT_SCOPE lt_dlhandle lt_dlopenext LT_PARAMS((const char *filename));
|
LT_SCOPE lt_ptr lt_dlsym LT_PARAMS((lt_dlhandle handle,
|
LT_SCOPE lt_ptr lt_dlsym LT_PARAMS((lt_dlhandle handle,
|
const char *name));
|
const char *name));
|
LT_SCOPE const char *lt_dlerror LT_PARAMS((void));
|
LT_SCOPE const char *lt_dlerror LT_PARAMS((void));
|
LT_SCOPE int lt_dlclose LT_PARAMS((lt_dlhandle handle));
|
LT_SCOPE int lt_dlclose LT_PARAMS((lt_dlhandle handle));
|
|
|
/* Module residency management. */
|
/* Module residency management. */
|
LT_SCOPE int lt_dlmakeresident LT_PARAMS((lt_dlhandle handle));
|
LT_SCOPE int lt_dlmakeresident LT_PARAMS((lt_dlhandle handle));
|
LT_SCOPE int lt_dlisresident LT_PARAMS((lt_dlhandle handle));
|
LT_SCOPE int lt_dlisresident LT_PARAMS((lt_dlhandle handle));
|
|
|
|
|
|
|
|
|
/* --- MUTEX LOCKING --- */
|
/* --- MUTEX LOCKING --- */
|
|
|
|
|
typedef void lt_dlmutex_lock LT_PARAMS((void));
|
typedef void lt_dlmutex_lock LT_PARAMS((void));
|
typedef void lt_dlmutex_unlock LT_PARAMS((void));
|
typedef void lt_dlmutex_unlock LT_PARAMS((void));
|
typedef void lt_dlmutex_seterror LT_PARAMS((const char *errmsg));
|
typedef void lt_dlmutex_seterror LT_PARAMS((const char *errmsg));
|
typedef const char *lt_dlmutex_geterror LT_PARAMS((void));
|
typedef const char *lt_dlmutex_geterror LT_PARAMS((void));
|
|
|
LT_SCOPE int lt_dlmutex_register LT_PARAMS((lt_dlmutex_lock *lock,
|
LT_SCOPE int lt_dlmutex_register LT_PARAMS((lt_dlmutex_lock *lock,
|
lt_dlmutex_unlock *unlock,
|
lt_dlmutex_unlock *unlock,
|
lt_dlmutex_seterror *seterror,
|
lt_dlmutex_seterror *seterror,
|
lt_dlmutex_geterror *geterror));
|
lt_dlmutex_geterror *geterror));
|
|
|
|
|
|
|
|
|
/* --- MEMORY HANDLING --- */
|
/* --- MEMORY HANDLING --- */
|
|
|
|
|
/* By default, the realloc function pointer is set to our internal
|
/* By default, the realloc function pointer is set to our internal
|
realloc implementation which iself uses lt_dlmalloc and lt_dlfree.
|
realloc implementation which iself uses lt_dlmalloc and lt_dlfree.
|
libltdl relies on a featureful realloc, but if you are sure yours
|
libltdl relies on a featureful realloc, but if you are sure yours
|
has the right semantics then you can assign it directly. Generally,
|
has the right semantics then you can assign it directly. Generally,
|
it is safe to assign just a malloc() and a free() function. */
|
it is safe to assign just a malloc() and a free() function. */
|
LT_SCOPE lt_ptr (*lt_dlmalloc) LT_PARAMS((size_t size));
|
LT_SCOPE lt_ptr (*lt_dlmalloc) LT_PARAMS((size_t size));
|
LT_SCOPE lt_ptr (*lt_dlrealloc) LT_PARAMS((lt_ptr ptr, size_t size));
|
LT_SCOPE lt_ptr (*lt_dlrealloc) LT_PARAMS((lt_ptr ptr, size_t size));
|
LT_SCOPE void (*lt_dlfree) LT_PARAMS((lt_ptr ptr));
|
LT_SCOPE void (*lt_dlfree) LT_PARAMS((lt_ptr ptr));
|
|
|
|
|
|
|
|
|
/* --- PRELOADED MODULE SUPPORT --- */
|
/* --- PRELOADED MODULE SUPPORT --- */
|
|
|
|
|
/* A preopened symbol. Arrays of this type comprise the exported
|
/* A preopened symbol. Arrays of this type comprise the exported
|
symbols for a dlpreopened module. */
|
symbols for a dlpreopened module. */
|
typedef struct {
|
typedef struct {
|
const char *name;
|
const char *name;
|
lt_ptr address;
|
lt_ptr address;
|
} lt_dlsymlist;
|
} lt_dlsymlist;
|
|
|
LT_SCOPE int lt_dlpreload LT_PARAMS((const lt_dlsymlist *preloaded));
|
LT_SCOPE int lt_dlpreload LT_PARAMS((const lt_dlsymlist *preloaded));
|
LT_SCOPE int lt_dlpreload_default
|
LT_SCOPE int lt_dlpreload_default
|
LT_PARAMS((const lt_dlsymlist *preloaded));
|
LT_PARAMS((const lt_dlsymlist *preloaded));
|
|
|
#define LTDL_SET_PRELOADED_SYMBOLS() LT_STMT_START{ \
|
#define LTDL_SET_PRELOADED_SYMBOLS() LT_STMT_START{ \
|
extern const lt_dlsymlist lt_preloaded_symbols[]; \
|
extern const lt_dlsymlist lt_preloaded_symbols[]; \
|
lt_dlpreload_default(lt_preloaded_symbols); \
|
lt_dlpreload_default(lt_preloaded_symbols); \
|
}LT_STMT_END
|
}LT_STMT_END
|
|
|
|
|
|
|
|
|
/* --- MODULE INFORMATION --- */
|
/* --- MODULE INFORMATION --- */
|
|
|
|
|
/* Read only information pertaining to a loaded module. */
|
/* Read only information pertaining to a loaded module. */
|
typedef struct {
|
typedef struct {
|
char *filename; /* file name */
|
char *filename; /* file name */
|
char *name; /* module name */
|
char *name; /* module name */
|
int ref_count; /* number of times lt_dlopened minus
|
int ref_count; /* number of times lt_dlopened minus
|
number of times lt_dlclosed. */
|
number of times lt_dlclosed. */
|
} lt_dlinfo;
|
} lt_dlinfo;
|
|
|
LT_SCOPE const lt_dlinfo *lt_dlgetinfo LT_PARAMS((lt_dlhandle handle));
|
LT_SCOPE const lt_dlinfo *lt_dlgetinfo LT_PARAMS((lt_dlhandle handle));
|
LT_SCOPE lt_dlhandle lt_dlhandle_next LT_PARAMS((lt_dlhandle place));
|
LT_SCOPE lt_dlhandle lt_dlhandle_next LT_PARAMS((lt_dlhandle place));
|
LT_SCOPE int lt_dlforeach LT_PARAMS((
|
LT_SCOPE int lt_dlforeach LT_PARAMS((
|
int (*func) (lt_dlhandle handle, lt_ptr data),
|
int (*func) (lt_dlhandle handle, lt_ptr data),
|
lt_ptr data));
|
lt_ptr data));
|
|
|
/* Associating user data with loaded modules. */
|
/* Associating user data with loaded modules. */
|
typedef unsigned lt_dlcaller_id;
|
typedef unsigned lt_dlcaller_id;
|
|
|
LT_SCOPE lt_dlcaller_id lt_dlcaller_register LT_PARAMS((void));
|
LT_SCOPE lt_dlcaller_id lt_dlcaller_register LT_PARAMS((void));
|
LT_SCOPE lt_ptr lt_dlcaller_set_data LT_PARAMS((lt_dlcaller_id key,
|
LT_SCOPE lt_ptr lt_dlcaller_set_data LT_PARAMS((lt_dlcaller_id key,
|
lt_dlhandle handle,
|
lt_dlhandle handle,
|
lt_ptr data));
|
lt_ptr data));
|
LT_SCOPE lt_ptr lt_dlcaller_get_data LT_PARAMS((lt_dlcaller_id key,
|
LT_SCOPE lt_ptr lt_dlcaller_get_data LT_PARAMS((lt_dlcaller_id key,
|
lt_dlhandle handle));
|
lt_dlhandle handle));
|
|
|
|
|
|
|
/* --- USER MODULE LOADER API --- */
|
/* --- USER MODULE LOADER API --- */
|
|
|
|
|
typedef struct lt_dlloader lt_dlloader;
|
typedef struct lt_dlloader lt_dlloader;
|
typedef lt_ptr lt_user_data;
|
typedef lt_ptr lt_user_data;
|
typedef lt_ptr lt_module;
|
typedef lt_ptr lt_module;
|
|
|
/* Function pointer types for creating user defined module loaders. */
|
/* Function pointer types for creating user defined module loaders. */
|
typedef lt_module lt_module_open LT_PARAMS((lt_user_data loader_data,
|
typedef lt_module lt_module_open LT_PARAMS((lt_user_data loader_data,
|
const char *filename));
|
const char *filename));
|
typedef int lt_module_close LT_PARAMS((lt_user_data loader_data,
|
typedef int lt_module_close LT_PARAMS((lt_user_data loader_data,
|
lt_module handle));
|
lt_module handle));
|
typedef lt_ptr lt_find_sym LT_PARAMS((lt_user_data loader_data,
|
typedef lt_ptr lt_find_sym LT_PARAMS((lt_user_data loader_data,
|
lt_module handle,
|
lt_module handle,
|
const char *symbol));
|
const char *symbol));
|
typedef int lt_dlloader_exit LT_PARAMS((lt_user_data loader_data));
|
typedef int lt_dlloader_exit LT_PARAMS((lt_user_data loader_data));
|
|
|
struct lt_user_dlloader {
|
struct lt_user_dlloader {
|
const char *sym_prefix;
|
const char *sym_prefix;
|
lt_module_open *module_open;
|
lt_module_open *module_open;
|
lt_module_close *module_close;
|
lt_module_close *module_close;
|
lt_find_sym *find_sym;
|
lt_find_sym *find_sym;
|
lt_dlloader_exit *dlloader_exit;
|
lt_dlloader_exit *dlloader_exit;
|
lt_user_data dlloader_data;
|
lt_user_data dlloader_data;
|
};
|
};
|
|
|
LT_SCOPE lt_dlloader *lt_dlloader_next LT_PARAMS((lt_dlloader *place));
|
LT_SCOPE lt_dlloader *lt_dlloader_next LT_PARAMS((lt_dlloader *place));
|
LT_SCOPE lt_dlloader *lt_dlloader_find LT_PARAMS((
|
LT_SCOPE lt_dlloader *lt_dlloader_find LT_PARAMS((
|
const char *loader_name));
|
const char *loader_name));
|
LT_SCOPE const char *lt_dlloader_name LT_PARAMS((lt_dlloader *place));
|
LT_SCOPE const char *lt_dlloader_name LT_PARAMS((lt_dlloader *place));
|
LT_SCOPE lt_user_data *lt_dlloader_data LT_PARAMS((lt_dlloader *place));
|
LT_SCOPE lt_user_data *lt_dlloader_data LT_PARAMS((lt_dlloader *place));
|
LT_SCOPE int lt_dlloader_add LT_PARAMS((lt_dlloader *place,
|
LT_SCOPE int lt_dlloader_add LT_PARAMS((lt_dlloader *place,
|
const struct lt_user_dlloader *dlloader,
|
const struct lt_user_dlloader *dlloader,
|
const char *loader_name));
|
const char *loader_name));
|
LT_SCOPE int lt_dlloader_remove LT_PARAMS((
|
LT_SCOPE int lt_dlloader_remove LT_PARAMS((
|
const char *loader_name));
|
const char *loader_name));
|
|
|
|
|
|
|
/* --- ERROR MESSAGE HANDLING --- */
|
/* --- ERROR MESSAGE HANDLING --- */
|
|
|
|
|
/* Defining error strings alongside their symbolic names in a macro in
|
/* Defining error strings alongside their symbolic names in a macro in
|
this way allows us to expand the macro in different contexts with
|
this way allows us to expand the macro in different contexts with
|
confidence that the enumeration of symbolic names will map correctly
|
confidence that the enumeration of symbolic names will map correctly
|
onto the table of error strings. */
|
onto the table of error strings. */
|
#define lt_dlerror_table \
|
#define lt_dlerror_table \
|
LT_ERROR(UNKNOWN, "unknown error") \
|
LT_ERROR(UNKNOWN, "unknown error") \
|
LT_ERROR(DLOPEN_NOT_SUPPORTED, "dlopen support not available") \
|
LT_ERROR(DLOPEN_NOT_SUPPORTED, "dlopen support not available") \
|
LT_ERROR(INVALID_LOADER, "invalid loader") \
|
LT_ERROR(INVALID_LOADER, "invalid loader") \
|
LT_ERROR(INIT_LOADER, "loader initialization failed") \
|
LT_ERROR(INIT_LOADER, "loader initialization failed") \
|
LT_ERROR(REMOVE_LOADER, "loader removal failed") \
|
LT_ERROR(REMOVE_LOADER, "loader removal failed") \
|
LT_ERROR(FILE_NOT_FOUND, "file not found") \
|
LT_ERROR(FILE_NOT_FOUND, "file not found") \
|
LT_ERROR(DEPLIB_NOT_FOUND, "dependency library not found") \
|
LT_ERROR(DEPLIB_NOT_FOUND, "dependency library not found") \
|
LT_ERROR(NO_SYMBOLS, "no symbols defined") \
|
LT_ERROR(NO_SYMBOLS, "no symbols defined") \
|
LT_ERROR(CANNOT_OPEN, "can't open the module") \
|
LT_ERROR(CANNOT_OPEN, "can't open the module") \
|
LT_ERROR(CANNOT_CLOSE, "can't close the module") \
|
LT_ERROR(CANNOT_CLOSE, "can't close the module") \
|
LT_ERROR(SYMBOL_NOT_FOUND, "symbol not found") \
|
LT_ERROR(SYMBOL_NOT_FOUND, "symbol not found") \
|
LT_ERROR(NO_MEMORY, "not enough memory") \
|
LT_ERROR(NO_MEMORY, "not enough memory") \
|
LT_ERROR(INVALID_HANDLE, "invalid module handle") \
|
LT_ERROR(INVALID_HANDLE, "invalid module handle") \
|
LT_ERROR(BUFFER_OVERFLOW, "internal buffer overflow") \
|
LT_ERROR(BUFFER_OVERFLOW, "internal buffer overflow") \
|
LT_ERROR(INVALID_ERRORCODE, "invalid errorcode") \
|
LT_ERROR(INVALID_ERRORCODE, "invalid errorcode") \
|
LT_ERROR(SHUTDOWN, "library already shutdown") \
|
LT_ERROR(SHUTDOWN, "library already shutdown") \
|
LT_ERROR(CLOSE_RESIDENT_MODULE, "can't close resident module") \
|
LT_ERROR(CLOSE_RESIDENT_MODULE, "can't close resident module") \
|
LT_ERROR(INVALID_MUTEX_ARGS, "invalid mutex handler registration") \
|
LT_ERROR(INVALID_MUTEX_ARGS, "invalid mutex handler registration") \
|
LT_ERROR(INVALID_POSITION, "invalid search path insert position")
|
LT_ERROR(INVALID_POSITION, "invalid search path insert position")
|
|
|
/* Enumerate the symbolic error names. */
|
/* Enumerate the symbolic error names. */
|
enum {
|
enum {
|
#define LT_ERROR(name, diagnostic) LT_CONC(LT_ERROR_, name),
|
#define LT_ERROR(name, diagnostic) LT_CONC(LT_ERROR_, name),
|
lt_dlerror_table
|
lt_dlerror_table
|
#undef LT_ERROR
|
#undef LT_ERROR
|
|
|
LT_ERROR_MAX
|
LT_ERROR_MAX
|
};
|
};
|
|
|
/* These functions are only useful from inside custom module loaders. */
|
/* These functions are only useful from inside custom module loaders. */
|
LT_SCOPE int lt_dladderror LT_PARAMS((const char *diagnostic));
|
LT_SCOPE int lt_dladderror LT_PARAMS((const char *diagnostic));
|
LT_SCOPE int lt_dlseterror LT_PARAMS((int errorcode));
|
LT_SCOPE int lt_dlseterror LT_PARAMS((int errorcode));
|
|
|
|
|
|
|
|
|
/* --- SOURCE COMPATIBILITY WITH OLD LIBLTDL --- */
|
/* --- SOURCE COMPATIBILITY WITH OLD LIBLTDL --- */
|
|
|
|
|
#ifdef LT_NON_POSIX_NAMESPACE
|
#ifdef LT_NON_POSIX_NAMESPACE
|
# define lt_ptr_t lt_ptr
|
# define lt_ptr_t lt_ptr
|
# define lt_module_t lt_module
|
# define lt_module_t lt_module
|
# define lt_module_open_t lt_module_open
|
# define lt_module_open_t lt_module_open
|
# define lt_module_close_t lt_module_close
|
# define lt_module_close_t lt_module_close
|
# define lt_find_sym_t lt_find_sym
|
# define lt_find_sym_t lt_find_sym
|
# define lt_dlloader_exit_t lt_dlloader_exit
|
# define lt_dlloader_exit_t lt_dlloader_exit
|
# define lt_dlloader_t lt_dlloader
|
# define lt_dlloader_t lt_dlloader
|
# define lt_dlloader_data_t lt_user_data
|
# define lt_dlloader_data_t lt_user_data
|
#endif
|
#endif
|
|
|
LT_END_C_DECLS
|
LT_END_C_DECLS
|
|
|
#endif /* !LTDL_H */
|
#endif /* !LTDL_H */
|
|
|
