diff options
Diffstat (limited to 'elf/dl-error.c')
| -rw-r--r-- | elf/dl-error.c | 45 |
1 files changed, 6 insertions, 39 deletions
diff --git a/elf/dl-error.c b/elf/dl-error.c index ae63447453..9ccc193a66 100644 --- a/elf/dl-error.c +++ b/elf/dl-error.c @@ -22,7 +22,7 @@ #include <string.h> #include <unistd.h> #include <elf/ldsodefs.h> -#include <bits/libc-lock.h> +#include <bits/libc-tsd.h> /* This structure communicates state between _dl_catch_error and _dl_signal_error. */ @@ -36,44 +36,11 @@ struct catch calls can come from `_dl_map_object_deps', `_dlerror_run', or from any of the libc functionality which loads dynamic objects (NSS, iconv). Therefore we have to be prepared to save the state in thread-local - memory. `catch' will only be used for the non-threaded case. - - Please note the horrible kludge we have to use to check for the - thread functions to be defined. The problem is that while running - ld.so standalone (i.e., before the relocation with the available - libc symbols) we do not have a real handling of undefined weak symbols. - All symbols are relocated, regardless of the availability. They are - relocated relative to the load address of the dynamic linker. Adding - this start address to zero (the value in the GOT for undefined symbols) - leads to an address which is the load address of ld.so. Once we have - relocated with the libc values the value is NULL if the function is - not available. Our "solution" is to regard NULL and the ld.so load - address as indicators for unavailable weak symbols. */ -static struct catch *catch; - -#ifdef PIC -# define tsd_setspecific(data) \ - if (__libc_internal_tsd_set != (void *) _dl_rtld_map.l_addr \ - && __libc_internal_tsd_set != NULL) \ - __libc_internal_tsd_set (_LIBC_TSD_KEY_DL_ERROR, data); \ - else \ - catch = (data) -# define tsd_getspecific() \ - (__libc_internal_tsd_set != (void *) _dl_rtld_map.l_addr \ - && __libc_internal_tsd_set != NULL \ - ? (struct catch *) __libc_internal_tsd_get (_LIBC_TSD_KEY_DL_ERROR) \ - : catch) -#else -# define tsd_setspecific(data) \ - if (__libc_internal_tsd_set != NULL) \ - __libc_internal_tsd_set (_LIBC_TSD_KEY_DL_ERROR, data); \ - else \ - catch = (data) -# define tsd_getspecific() \ - (__libc_internal_tsd_set != NULL \ - ? (struct catch *) __libc_internal_tsd_get (_LIBC_TSD_KEY_DL_ERROR) \ - : catch) -#endif + memory. */ + +__libc_tsd_define (static, DL_ERROR) +#define tsd_getspecific() __libc_tsd_get (DL_ERROR) +#define tsd_setspecific(data) __libc_tsd_set (DL_ERROR, (data)) /* This points to a function which is called when an error is |