diff options
Diffstat (limited to 'nptl')
| -rw-r--r-- | nptl/allocatestack.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/nptl/allocatestack.c b/nptl/allocatestack.c index 3c8e04699b..8e620c46e9 100644 --- a/nptl/allocatestack.c +++ b/nptl/allocatestack.c @@ -1190,7 +1190,6 @@ __nptl_setxid (struct xid_command *cmdp) static inline void __attribute__((always_inline)) init_one_static_tls (struct pthread *curp, struct link_map *map) { - dtv_t *dtv = GET_DTV (TLS_TPADJ (curp)); # if TLS_TCB_AT_TP void *dest = (char *) curp - map->l_tls_offset; # elif TLS_DTV_AT_TP @@ -1199,11 +1198,9 @@ init_one_static_tls (struct pthread *curp, struct link_map *map) # 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.val = dest; - dtv[map->l_tls_modid].pointer.is_static = true; - - /* Initialize the memory. */ + /* We cannot delay the initialization of the Static TLS area, since + it can be accessed with LE or IE, but since the DTV is only used + by GD and LD, we can delay its update to avoid a race. */ memset (__mempcpy (dest, map->l_tls_initimage, map->l_tls_initimage_size), '\0', map->l_tls_blocksize - map->l_tls_initimage_size); } |