Subversion Repositories HelenOS

Rev

Rev 2927 | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
1217 decky 1
/*
2071 jermar 2
 * Copyright (c) 2006 Ondrej Palkovsky
3589 svoboda 3
 * Copyright (c) 2008 Jiri Svoboda
1217 decky 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
 
1866 jermar 30
/** @addtogroup libcppc32  
1656 cejka 31
 * @{
32
 */
33
/** @file
34
 */
35
 
2586 jermar 36
#include <tls.h>
3589 svoboda 37
#include <align.h>
2586 jermar 38
#include <sys/types.h>
1217 decky 39
 
40
tcb_t * __alloc_tls(void **data, size_t size)
41
{
2586 jermar 42
    return tls_alloc_variant_1(data, size);
1217 decky 43
}
44
 
45
void __free_tls_arch(tcb_t *tcb, size_t size)
46
{
2586 jermar 47
    tls_free_variant_1(tcb, size);
1217 decky 48
}
1656 cejka 49
 
3589 svoboda 50
static void kputint(unsigned i)
51
{
52
    asm volatile (
53
        "mr %%r3, %0\n"
54
        "li %%r9, 32\n"
55
        "sc\n"
56
        :
57
        : "r" (i)
58
        : "%r3","%r9"
59
    ) ;
60
}
61
 
62
typedef struct {
63
    unsigned long int ti_module;
64
    unsigned long int ti_offset;
65
} tls_index;
66
 
67
void *__tls_get_addr(tls_index *ti);
68
 
69
/* ppc32 uses TLS variant 1 */
70
void *__tls_get_addr(tls_index *ti)
71
{
72
    uint8_t *tls;
73
 
74
    /* The TLS section is just after TCB */
75
    tls = (uint8_t *)__tcb_get() + sizeof(tcb_t);
76
 
77
    /* Hopefully this is right. No docs found. */
78
    return tls + ti->ti_offset + 32768;
79
}
80
 
1866 jermar 81
/** @}
1656 cejka 82
 */