Rev 2061 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1797 | decky | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2006 Ondrej Palkovsky |
| 1797 | decky | 3 | * All rights reserved. |
| 4 | * |
||
| 5 | * Redistribution and use in source and binary forms, with or without |
||
| 6 | * modification, are permitted provided that the following conditions |
||
| 7 | * are met: |
||
| 8 | * |
||
| 9 | * - Redistributions of source code must retain the above copyright |
||
| 10 | * notice, this list of conditions and the following disclaimer. |
||
| 11 | * - Redistributions in binary form must reproduce the above copyright |
||
| 12 | * notice, this list of conditions and the following disclaimer in the |
||
| 13 | * documentation and/or other materials provided with the distribution. |
||
| 14 | * - The name of the author may not be used to endorse or promote products |
||
| 15 | * derived from this software without specific prior written permission. |
||
| 16 | * |
||
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
||
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
| 27 | */ |
||
| 28 | |||
| 1864 | jermar | 29 | /** @addtogroup libcsparc64 sparc64 |
| 30 | * @ingroup lc |
||
| 1797 | decky | 31 | * @{ |
| 32 | */ |
||
| 33 | /** @file |
||
| 1864 | jermar | 34 | * |
| 1797 | decky | 35 | */ |
| 36 | |||
| 37 | #include <thread.h> |
||
| 38 | #include <malloc.h> |
||
| 39 | |||
| 2061 | jermar | 40 | /* |
| 41 | * sparc64 uses thread-local storage data structures, variant II, as described |
||
| 42 | * in: |
||
| 43 | * Drepper U.: ELF Handling For Thread-Local Storage, 2005 |
||
| 44 | */ |
||
| 45 | |||
| 46 | /** Allocate TLS variant II data structures for a thread. |
||
| 1797 | decky | 47 | * |
| 2061 | jermar | 48 | * Only static model is supported. |
| 49 | * |
||
| 50 | * @param data Pointer to pointer to thread local data. This is actually an |
||
| 51 | * output argument. |
||
| 52 | * @param size Size of thread local data. |
||
| 53 | * @return Pointer to TCB structure. |
||
| 1797 | decky | 54 | */ |
| 55 | tcb_t * __alloc_tls(void **data, size_t size) |
||
| 56 | { |
||
| 1864 | jermar | 57 | tcb_t *tcb; |
| 58 | |||
| 59 | *data = malloc(sizeof(tcb_t) + size); |
||
| 1797 | decky | 60 | |
| 1864 | jermar | 61 | tcb = (tcb_t *) (*data + size); |
| 62 | tcb->self = tcb; |
||
| 63 | |||
| 64 | return tcb; |
||
| 1797 | decky | 65 | } |
| 66 | |||
| 2061 | jermar | 67 | /** Free TLS variant II data structures of a thread. |
| 68 | * |
||
| 69 | * Only static model is supported. |
||
| 70 | * |
||
| 71 | * @param tcb Pointer to TCB structure. |
||
| 72 | * @param size Size of thread local data. |
||
| 73 | */ |
||
| 1797 | decky | 74 | void __free_tls_arch(tcb_t *tcb, size_t size) |
| 75 | { |
||
| 2061 | jermar | 76 | void *start = ((void *) tcb) - size; |
| 1864 | jermar | 77 | free(start); |
| 1797 | decky | 78 | } |
| 79 | |||
| 80 | /** @} |
||
| 81 | */ |