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8b48923b CZ |
1 | ; newlib tls glue code for Synopsys DesignWare ARC cpu. |
2 | ||
a945c346 | 3 | /* Copyright (C) 2016-2024 Free Software Foundation, Inc. |
8b48923b CZ |
4 | Contributor: Joern Rennecke <joern.rennecke@embecosm.com> |
5 | on behalf of Synopsys Inc. | |
6 | ||
7 | This file is part of GCC. | |
8 | ||
9 | GCC is free software; you can redistribute it and/or modify it under | |
10 | the terms of the GNU General Public License as published by the Free | |
11 | Software Foundation; either version 3, or (at your option) any later | |
12 | version. | |
13 | ||
14 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
15 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
16 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
17 | for more details. | |
18 | ||
19 | Under Section 7 of GPL version 3, you are granted additional | |
20 | permissions described in the GCC Runtime Library Exception, version | |
21 | 3.1, as published by the Free Software Foundation. | |
22 | ||
23 | You should have received a copy of the GNU General Public License and | |
24 | a copy of the GCC Runtime Library Exception along with this program; | |
25 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
26 | <http://www.gnu.org/licenses/>. */ | |
27 | ||
28 | /* As a special exception, if you link this library with other files, | |
29 | some of which are compiled with GCC, to produce an executable, | |
30 | this library does not by itself cause the resulting executable | |
31 | to be covered by the GNU General Public License. | |
32 | This exception does not however invalidate any other reasons why | |
33 | the executable file might be covered by the GNU General Public License. */ | |
34 | ||
35 | ||
2744b8b2 CZ |
36 | #ifdef __ARC_RF16__ |
37 | /* Use object attributes to inform other tools this file is | |
38 | safe for RF16 configuration. */ | |
39 | .arc_attribute Tag_ARC_ABI_rf16, 1 | |
40 | #endif | |
41 | ||
8b48923b CZ |
42 | #if (__ARC_TLS_REGNO__ != -1) |
43 | /* ANSI concatenation macros. */ | |
44 | ||
45 | #define CONCAT1(a, b) CONCAT2(a, b) | |
46 | #define CONCAT2(a, b) a ## b | |
47 | ||
48 | /* Use the right prefix for global labels. */ | |
49 | ||
50 | #define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) | |
51 | ||
52 | #define FUNC(X) .type SYM(X),@function | |
53 | #define ENDFUNC0(X) .Lfe_##X: .size X,.Lfe_##X-X | |
54 | #define ENDFUNC(X) ENDFUNC0(X) | |
55 | ||
56 | .global SYM(__read_tp) | |
57 | SYM(__read_tp): | |
58 | FUNC(__read_tp) | |
59 | mov r0, CONCAT1 (r, __ARC_TLS_REGNO__) | |
60 | nop | |
61 | j [blink] | |
62 | ENDFUNC(__read_tp) | |
63 | ||
64 | .section .init | |
65 | mov CONCAT1 (r, __ARC_TLS_REGNO__),__main_tcb_end+256 | |
66 | ||
67 | .section .tbss | |
68 | __main_tcb: | |
69 | .long 0 | |
70 | .long 0 | |
71 | __main_tcb_end: | |
72 | ||
73 | #endif /*__ARC_TLS_REGNO__ != -1 */ |