| 0,0 → 1,81 |
|---|
| /* |
| * Copyright (c) 2006 Ondrej Palkovsky |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** @addtogroup libcsparc64 sparc64 |
| * @ingroup lc |
| * @{ |
| */ |
| /** @file |
| * |
| */ |
| |
| #include <thread.h> |
| #include <malloc.h> |
| |
| /* |
| * sparc64 uses thread-local storage data structures, variant II, as described |
| * in: |
| * Drepper U.: ELF Handling For Thread-Local Storage, 2005 |
| */ |
| |
| /** Allocate TLS variant II data structures for a thread. |
| * |
| * Only static model is supported. |
| * |
| * @param data Pointer to pointer to thread local data. This is actually an |
| * output argument. |
| * @param size Size of thread local data. |
| * @return Pointer to TCB structure. |
| */ |
| tcb_t * __alloc_tls(void **data, size_t size) |
| { |
| tcb_t *tcb; |
| |
| *data = malloc(sizeof(tcb_t) + size); |
| |
| tcb = (tcb_t *) (*data + size); |
| tcb->self = tcb; |
| |
| return tcb; |
| } |
| |
| /** Free TLS variant II data structures of a thread. |
| * |
| * Only static model is supported. |
| * |
| * @param tcb Pointer to TCB structure. |
| * @param size Size of thread local data. |
| */ |
| void __free_tls_arch(tcb_t *tcb, size_t size) |
| { |
| void *start = ((void *) tcb) - size; |
| free(start); |
| } |
| |
| /** @} |
| */ |