| /* System dependent definitions for run-time dynamic loading. |
| Copyright (C) 1996-2001, 2004 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #ifndef _DLFCN_H |
| # error "Never use <bits/dlfcn.h> directly; include <dlfcn.h> instead." |
| #endif |
| |
| /* The MODE argument to `dlopen' contains one of the following: */ |
| #define RTLD_LAZY 0x00001 /* Lazy function call binding. */ |
| #define RTLD_NOW 0x00002 /* Immediate function call binding. */ |
| #define RTLD_BINDING_MASK 0x3 /* Mask of binding time value. */ |
| #define RTLD_NOLOAD 0x00004 /* Do not load the object. */ |
| #define RTLD_DEEPBIND 0x00008 /* Use deep binding. */ |
| |
| /* If the following bit is set in the MODE argument to `dlopen', |
| the symbols of the loaded object and its dependencies are made |
| visible as if the object were linked directly into the program. */ |
| #define RTLD_GLOBAL 0x00100 |
| |
| /* Unix98 demands the following flag which is the inverse to RTLD_GLOBAL. |
| The implementation does this by default and so we can define the |
| value to zero. */ |
| #define RTLD_LOCAL 0 |
| |
| /* Do not delete object when closed. */ |
| #define RTLD_NODELETE 0x01000 |
| |
| #ifdef __USE_GNU |
| /* To support profiling of shared objects it is a good idea to call |
| the function found using `dlsym' using the following macro since |
| these calls do not use the PLT. But this would mean the dynamic |
| loader has no chance to find out when the function is called. The |
| macro applies the necessary magic so that profiling is possible. |
| Rewrite |
| foo = (*fctp) (arg1, arg2); |
| into |
| foo = DL_CALL_FCT (fctp, (arg1, arg2)); |
| */ |
| # define DL_CALL_FCT(fctp, args) \ |
| (_dl_mcount_wrapper_check ((void *) (fctp)), (*(fctp)) args) |
| |
| __BEGIN_DECLS |
| |
| /* This function calls the profiling functions. */ |
| extern void _dl_mcount_wrapper_check (void *__selfpc) __THROW; |
| |
| __END_DECLS |
| |
| #endif |
