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author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-06-07 23:27:46 +0000 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-06-07 23:36:40 +0000 |
commit | af27fabe405c757d372b106c8aa383a386a4a79e (patch) | |
tree | cd019d303cfa25d12637c46c4bd109f82e819032 /htl/pt-alloc.c | |
parent | 3944c61bdf5d1530d0576a396eb3e2f9a4d6caff (diff) | |
download | glibc-af27fabe405c757d372b106c8aa383a386a4a79e.zip glibc-af27fabe405c757d372b106c8aa383a386a4a79e.tar.gz glibc-af27fabe405c757d372b106c8aa383a386a4a79e.tar.bz2 |
htl: Fix tls initialization for already-created threads
* sysdeps/htl/pthreadP.h: Include <link.h>
(__pthread_init_static_tls): New prototype.
* htl/pt-alloc.c (__pthread_init_static_tls): New function.
* sysdeps/mach/hurd/htl/pt-sysdep.c (_init_routine): Initialize tcb
field of initial thread. Set GL(dl_init_static_tls) to
&__pthread_init_static_tls.
Diffstat (limited to 'htl/pt-alloc.c')
-rw-r--r-- | htl/pt-alloc.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/htl/pt-alloc.c b/htl/pt-alloc.c index 4e6fa52..d4426bb 100644 --- a/htl/pt-alloc.c +++ b/htl/pt-alloc.c @@ -212,3 +212,32 @@ retry: *pthread = new; return 0; } + +void +attribute_hidden +__pthread_init_static_tls (struct link_map *map) +{ + int i; + + __pthread_rwlock_wrlock (&__pthread_threads_lock); + for (i = 0; i < __pthread_num_threads; ++i) + { + struct __pthread *t = __pthread_threads[i]; + + if (t == NULL) + continue; + +# if TLS_TCB_AT_TP + void *dest = (char *) t->tcb - map->l_tls_offset; +# elif TLS_DTV_AT_TP + void *dest = (char *) t->tcb + map->l_tls_offset + TLS_PRE_TCB_SIZE; +# else +# error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined" +# endif + + /* 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); + } + __pthread_rwlock_unlock (&__pthread_threads_lock); +} |