diff options
Diffstat (limited to 'sysdeps/generic/ldsodefs.h')
| -rw-r--r-- | sysdeps/generic/ldsodefs.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h index e29e9d7ff0..3cac4fa362 100644 --- a/sysdeps/generic/ldsodefs.h +++ b/sysdeps/generic/ldsodefs.h @@ -66,14 +66,20 @@ __BEGIN_DECLS /* Result of the lookup functions and how to retrieve the base address. */ typedef struct link_map *lookup_t; #define LOOKUP_VALUE(map) map -#define LOOKUP_VALUE_ADDRESS(map) ((map) ? (map)->l_addr : 0) +#define LOOKUP_VALUE_ADDRESS(map, set) ((set) || (map) ? (map)->l_addr : 0) + +/* Calculate the address of symbol REF using the base address from map MAP, + if non-NULL. Don't check for NULL map if MAP_SET is TRUE. */ +#define SYMBOL_ADDRESS(map, ref, map_set) \ + ((ref) == NULL ? 0 \ + : LOOKUP_VALUE_ADDRESS (map, map_set) + (ref)->st_value) /* On some architectures a pointer to a function is not just a pointer to the actual code of the function but rather an architecture specific descriptor. */ #ifndef ELF_FUNCTION_PTR_IS_SPECIAL # define DL_SYMBOL_ADDRESS(map, ref) \ - (void *) (LOOKUP_VALUE_ADDRESS (map) + ref->st_value) + (void *) SYMBOL_ADDRESS (map, ref, false) # define DL_LOOKUP_ADDRESS(addr) ((ElfW(Addr)) (addr)) # define DL_CALL_DT_INIT(map, start, argc, argv, env) \ ((init_t) (start)) (argc, argv, env) |