diff options
Diffstat (limited to 'elf/dlfcn.h')
| -rw-r--r-- | elf/dlfcn.h | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/elf/dlfcn.h b/elf/dlfcn.h index 715e178..d2a27b8 100644 --- a/elf/dlfcn.h +++ b/elf/dlfcn.h @@ -21,16 +21,23 @@ #define _DLFCN_H 1 #include <features.h> +#define __need_NULL +#include <stddef.h> /* Collect various system dependand definitions and declarations. */ #include <bits/dlfcn.h> -/* If the first argument of `dlsym' is set to RTLD_NEXT the run-time - address of the symbol called NAME in the next shared object is - returned. The "next" relation is defined by the order the shared - objects were loaded. */ +/* If the first argument of `dlsym' or `dlvsym' is set to RTLD_NEXT + the run-time address of the symbol called NAME in the next shared + object is returned. The "next" relation is defined by the order + the shared objects were loaded. */ #define RTLD_NEXT ((void *) -1l) +/* If the first argument to `dlsym' or `dlvsym' is set to RTLD_DEFAULT + the run-time address of the symbol called NAME in the global scope + is returned. */ +#define RTLD_DEFAULT NULL + __BEGIN_DECLS /* Open the shared object FILE and map it in; return a handle that can be @@ -57,6 +64,7 @@ extern void *dlvsym __P ((void *__handle, __const char *__name, the error string so that a following call returns null. */ extern char *dlerror __P ((void)); +#ifdef __USE_GNU /* Fill in *INFO with the following information about ADDRESS. Returns 0 iff no shared object's segments contain that address. */ typedef struct @@ -68,7 +76,6 @@ typedef struct } Dl_info; extern int dladdr __P ((const void *__address, Dl_info *__info)); -#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 |