diff options
Diffstat (limited to 'linuxthreads/pthread.c')
| -rw-r--r-- | linuxthreads/pthread.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/linuxthreads/pthread.c b/linuxthreads/pthread.c index 6211124b31..f7081139b2 100644 --- a/linuxthreads/pthread.c +++ b/linuxthreads/pthread.c @@ -462,6 +462,44 @@ __libc_dl_error_tsd (void) # endif #endif +#ifdef USE_TLS +static inline void __attribute__((always_inline)) +init_one_static_tls (pthread_descr descr, struct link_map *map) +{ +# if TLS_TCB_AT_TP + dtv_t *dtv = GET_DTV (descr); + void *dest = (char *) descr - map->l_tls_offset; +# elif TLS_DTV_AT_TP + dtv_t *dtv = GET_DTV ((pthread_descr) ((char *) descr + TLS_PRE_TCB_SIZE)); + void *dest = (char *) descr + map->l_tls_offset + TLS_PRE_TCB_SIZE; +# else +# error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined" +# endif + + /* Fill in the DTV slot so that a later LD/GD access will find it. */ + dtv[map->l_tls_modid].pointer = dest; + + /* Initialize the memory. */ + memset (__mempcpy (dest, map->l_tls_initimage, map->l_tls_initimage_size), + '\0', map->l_tls_blocksize - map->l_tls_initimage_size); +} + +static void +__pthread_init_static_tls (struct link_map *map) +{ + size_t i; + + for (i = 0; i < PTHREAD_THREADS_MAX; ++i) + if (__pthread_handles[i].h_descr != NULL && i != 1) + { + __pthread_lock (&__pthread_handles[i].h_lock, NULL); + if (__pthread_handles[i].h_descr != NULL) + init_one_static_tls (__pthread_handles[i].h_descr, map); + __pthread_unlock (&__pthread_handles[i].h_lock); + } +} +#endif + static void pthread_initialize(void) { struct sigaction sa; @@ -551,6 +589,10 @@ static void pthread_initialize(void) *__libc_dl_error_tsd () = *(*GL(dl_error_catch_tsd)) (); GL(dl_error_catch_tsd) = &__libc_dl_error_tsd; #endif + +#ifdef USE_TLS + GL(dl_init_static_tls) = &__pthread_init_static_tls; +#endif } void __pthread_initialize(void) |