diff options
Diffstat (limited to 'libc/sysdeps/linux/common/bits/dlfcn.h')
| -rw-r--r-- | libc/sysdeps/linux/common/bits/dlfcn.h | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/libc/sysdeps/linux/common/bits/dlfcn.h b/libc/sysdeps/linux/common/bits/dlfcn.h index 75122a98a..4bfbbff04 100644 --- a/libc/sysdeps/linux/common/bits/dlfcn.h +++ b/libc/sysdeps/linux/common/bits/dlfcn.h @@ -1,5 +1,5 @@ /* System dependent definitions for run-time dynamic loading. - Copyright (C) 1996,1997,1998,1999,2000,2001 Free Software Foundation, Inc. + 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 @@ -24,8 +24,11 @@ /* 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. */ +#if 0 /* uClibc doesnt support these */ #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. */ +#endif /* If the following bit is set in the MODE argument to `dlopen', the symbols of the loaded object and its dependencies are made @@ -40,3 +43,25 @@ /* Do not delete object when closed. */ #define RTLD_NODELETE 0x01000 +#if 0 /*def __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 |