| 1 | /*
|
|---|
| 2 | * Copyright (c) 2006 Ondrej Palkovsky
|
|---|
| 3 | * Copyright (c) 2016 Jiri Svoboda
|
|---|
| 4 | * All rights reserved.
|
|---|
| 5 | *
|
|---|
| 6 | * Redistribution and use in source and binary forms, with or without
|
|---|
| 7 | * modification, are permitted provided that the following conditions
|
|---|
| 8 | * are met:
|
|---|
| 9 | *
|
|---|
| 10 | * - Redistributions of source code must retain the above copyright
|
|---|
| 11 | * notice, this list of conditions and the following disclaimer.
|
|---|
| 12 | * - Redistributions in binary form must reproduce the above copyright
|
|---|
| 13 | * notice, this list of conditions and the following disclaimer in the
|
|---|
| 14 | * documentation and/or other materials provided with the distribution.
|
|---|
| 15 | * - The name of the author may not be used to endorse or promote products
|
|---|
| 16 | * derived from this software without specific prior written permission.
|
|---|
| 17 | *
|
|---|
| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|---|
| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|---|
| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|---|
| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|---|
| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|---|
| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|---|
| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|---|
| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|---|
| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|---|
| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|---|
| 28 | */
|
|---|
| 29 |
|
|---|
| 30 | /** @addtogroup libcamd64 amd64
|
|---|
| 31 | * @ingroup lc
|
|---|
| 32 | * @{
|
|---|
| 33 | */
|
|---|
| 34 | /** @file
|
|---|
| 35 | * @ingroup libcia32
|
|---|
| 36 | */
|
|---|
| 37 |
|
|---|
| 38 | #include <tls.h>
|
|---|
| 39 | #include <stddef.h>
|
|---|
| 40 | #include <stdint.h>
|
|---|
| 41 | #include <align.h>
|
|---|
| 42 |
|
|---|
| 43 | #ifdef CONFIG_RTLD
|
|---|
| 44 | #include <rtld/rtld.h>
|
|---|
| 45 | #endif
|
|---|
| 46 |
|
|---|
| 47 | tcb_t *tls_alloc_arch(size_t size, size_t align)
|
|---|
| 48 | {
|
|---|
| 49 | return tls_alloc_variant_2(size, align);
|
|---|
| 50 | }
|
|---|
| 51 |
|
|---|
| 52 | void tls_free_arch(tcb_t *tcb, size_t size, size_t align)
|
|---|
| 53 | {
|
|---|
| 54 | tls_free_variant_2(tcb, size, align);
|
|---|
| 55 | }
|
|---|
| 56 |
|
|---|
| 57 | /*
|
|---|
| 58 | * Rtld TLS support
|
|---|
| 59 | */
|
|---|
| 60 |
|
|---|
| 61 | typedef struct {
|
|---|
| 62 | unsigned long int ti_module;
|
|---|
| 63 | unsigned long int ti_offset;
|
|---|
| 64 | } tls_index;
|
|---|
| 65 |
|
|---|
| 66 | void __attribute__((__regparm__(1)))
|
|---|
| 67 | *___tls_get_addr(tls_index *ti);
|
|---|
| 68 |
|
|---|
| 69 | void __attribute__((__regparm__(1)))
|
|---|
| 70 | *___tls_get_addr(tls_index *ti)
|
|---|
| 71 | {
|
|---|
| 72 | uint8_t *tls;
|
|---|
| 73 |
|
|---|
| 74 | #ifdef CONFIG_RTLD
|
|---|
| 75 | if (runtime_env != NULL) {
|
|---|
| 76 | return rtld_tls_get_addr(runtime_env, __tcb_get(),
|
|---|
| 77 | ti->ti_module, ti->ti_offset);
|
|---|
| 78 | }
|
|---|
| 79 | #endif
|
|---|
| 80 | /* Get address of static TLS block */
|
|---|
| 81 | tls = tls_get();
|
|---|
| 82 | return tls + ti->ti_offset;
|
|---|
| 83 | }
|
|---|
| 84 |
|
|---|
| 85 | /** @}
|
|---|
| 86 | */
|
|---|
