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| 1 | /* |
1 | /* |
| 2 | * Copyright (c) 2008 Jiri Svoboda |
2 | * Copyright (c) 2008 Jiri Svoboda |
| 3 | * All rights reserved. |
3 | * All rights reserved. |
| 4 | * |
4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
7 | * are met: |
| 8 | * |
8 | * |
| 9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
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 |
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. |
15 | * derived from this software without specific prior written permission. |
| 16 | * |
16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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 |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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 |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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 |
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. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
27 | */ |
| 28 | 28 | ||
| 29 | /** @addtogroup rtld rtld |
29 | /** @addtogroup rtld rtld |
| 30 | * @brief |
30 | * @brief |
| 31 | * @{ |
31 | * @{ |
| 32 | */ |
32 | */ |
| 33 | /** |
33 | /** |
| 34 | * @file |
34 | * @file |
| 35 | */ |
35 | */ |
| 36 | 36 | ||
| 37 | #include <sys/types.h> |
37 | #include <sys/types.h> |
| 38 | #include <align.h> |
38 | #include <align.h> |
| 39 | #include <tls.h> |
39 | #include <tls.h> |
| 40 | 40 | ||
| 41 | void _putint(int i); |
- | |
| 42 | /* FIXME */ |
- | |
| 43 | void __udivdi3(void); |
- | |
| 44 | void __umoddi3(void); |
- | |
| 45 | - | ||
| 46 | static void kputint(unsigned i) |
41 | static void kputint(unsigned i) |
| 47 | { |
42 | { |
| 48 | unsigned dummy; |
43 | unsigned dummy; |
| 49 | asm volatile ( |
44 | asm volatile ( |
| 50 | "movl $30, %%eax;" |
45 | "movl $30, %%eax;" |
| 51 | "int $0x30" |
46 | "int $0x30" |
| 52 | : "=d" (dummy) /* output - %edx clobbered */ |
47 | : "=d" (dummy) /* output - %edx clobbered */ |
| 53 | : "d" (i) /* input */ |
48 | : "d" (i) /* input */ |
| 54 | : "%eax","%ecx" /* all scratch registers clobbered */ |
49 | : "%eax","%ecx" /* all scratch registers clobbered */ |
| 55 | ); |
50 | ); |
| 56 | } |
51 | } |
| 57 | 52 | ||
| 58 | typedef struct { |
53 | typedef struct { |
| 59 | unsigned long int ti_module; |
54 | unsigned long int ti_module; |
| 60 | unsigned long int ti_offset; |
55 | unsigned long int ti_offset; |
| 61 | } tls_index; |
56 | } tls_index; |
| 62 | 57 | ||
| 63 | void __attribute__ ((__regparm__ (1))) |
58 | void __attribute__ ((__regparm__ (1))) |
| 64 | *___tls_get_addr(tls_index *ti); |
59 | *___tls_get_addr(tls_index *ti); |
| 65 | 60 | ||
| 66 | void __attribute__ ((__regparm__ (1))) |
61 | void __attribute__ ((__regparm__ (1))) |
| 67 | *___tls_get_addr(tls_index *ti) |
62 | *___tls_get_addr(tls_index *ti) |
| 68 | { |
63 | { |
| 69 | size_t tls_size; |
64 | size_t tls_size; |
| 70 | uint8_t *tls; |
65 | uint8_t *tls; |
| 71 | 66 | ||
| 72 | /* Calculate size of TLS block */ |
67 | /* Calculate size of TLS block */ |
| 73 | tls_size = ALIGN_UP(&_tbss_end - &_tdata_start, &_tls_alignment); |
68 | tls_size = ALIGN_UP(&_tbss_end - &_tdata_start, &_tls_alignment); |
| 74 | 69 | ||
| 75 | /* The TLS block is just before TCB */ |
70 | /* The TLS block is just before TCB */ |
| 76 | tls = (uint8_t *)__tcb_get() - tls_size; |
71 | tls = (uint8_t *)__tcb_get() - tls_size; |
| 77 | 72 | ||
| 78 | return tls + ti->ti_offset; |
73 | return tls + ti->ti_offset; |
| 79 | } |
74 | } |
| 80 | - | ||
| 81 | void _putint(int i) |
- | |
| 82 | { |
- | |
| 83 | } |
- | |
| 84 | 75 | ||
| 85 | /** @} |
76 | /** @} |
| 86 | */ |
77 | */ |
| 87 | 78 | ||