1 /* Copyright (C) 2011-2018 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library. If not, see
17 <http://www.gnu.org/licenses/>. */
21 #include <bits/wordsize.h>
24 #define LOG_SIZEOF_DTV_T 4
26 #define LOG_SIZEOF_DTV_T 3
29 /* On entry, r0 points to two words, the module and the offset.
30 On return, r0 holds the pointer to the relevant TLS memory.
31 Only registers r25..r29 are clobbered by the call. */
34 ENTRY (__tls_get_addr)
37 ADDI_PTR r27, tp, DTV_OFFSET
41 LD_PTR r27, r27 /* r27 = THREAD_DTV() */
42 moveli r26, hw1_last(_rtld_local + TLS_GENERATION_OFFSET - .Llnk)
44 shl16insli r26, r26, hw0(_rtld_local + TLS_GENERATION_OFFSET - .Llnk)
47 LD_PTR r26, r0 /* r26 = ti_module */
49 LD_PTR r25, r25 /* r25 = DL(dl_tls_generation) */
51 LD_PTR r28, r27 /* r28 = THREAD_DTV()->counter */
52 ADDI_PTR r29, r0, __SIZEOF_POINTER__
55 LD_PTR r29, r29 /* r29 = ti_offset */
56 cmpeq r25, r28, r25 /* r25 nonzero if generation OK */
57 shli r28, r26, LOG_SIZEOF_DTV_T /* byte index into dtv array */
61 cmpeqi r25, r26, -1 /* r25 nonzero if ti_module invalid */
65 ADD_PTR r28, r28, r27 /* pointer into module array */
67 LD_PTR r26, r28 /* r26 = module TLS pointer */
68 cmpeqi r25, r26, -1 /* check r26 == TLS_DTV_UNALLOCATED */
78 ADDLI_PTR r29, sp, - (25 * REGSIZE)
83 ADDLI_PTR sp, sp, - (26 * REGSIZE)
85 cfi_def_cfa_offset (26 * REGSIZE)
86 ADDI_PTR r29, sp, (2 * REGSIZE)
87 { st r29, r1; ADDI_PTR r29, r29, REGSIZE }
88 { st r29, r2; ADDI_PTR r29, r29, REGSIZE }
89 { st r29, r3; ADDI_PTR r29, r29, REGSIZE }
90 { st r29, r4; ADDI_PTR r29, r29, REGSIZE }
91 { st r29, r5; ADDI_PTR r29, r29, REGSIZE }
92 { st r29, r6; ADDI_PTR r29, r29, REGSIZE }
93 { st r29, r7; ADDI_PTR r29, r29, REGSIZE }
94 { st r29, r8; ADDI_PTR r29, r29, REGSIZE }
95 { st r29, r9; ADDI_PTR r29, r29, REGSIZE }
96 { st r29, r10; ADDI_PTR r29, r29, REGSIZE }
97 { st r29, r11; ADDI_PTR r29, r29, REGSIZE }
98 { st r29, r12; ADDI_PTR r29, r29, REGSIZE }
99 { st r29, r13; ADDI_PTR r29, r29, REGSIZE }
100 { st r29, r14; ADDI_PTR r29, r29, REGSIZE }
101 { st r29, r15; ADDI_PTR r29, r29, REGSIZE }
102 { st r29, r16; ADDI_PTR r29, r29, REGSIZE }
103 { st r29, r17; ADDI_PTR r29, r29, REGSIZE }
104 { st r29, r18; ADDI_PTR r29, r29, REGSIZE }
105 { st r29, r19; ADDI_PTR r29, r29, REGSIZE }
106 { st r29, r20; ADDI_PTR r29, r29, REGSIZE }
107 { st r29, r21; ADDI_PTR r29, r29, REGSIZE }
108 { st r29, r22; ADDI_PTR r29, r29, REGSIZE }
109 { st r29, r23; ADDI_PTR r29, r29, REGSIZE }
110 { st r29, r24; ADDI_PTR r29, r29, REGSIZE }
111 .hidden __tls_get_addr_slow
112 jal __tls_get_addr_slow
113 ADDI_PTR r29, sp, (2 * REGSIZE)
114 { ld r1, r29; ADDI_PTR r29, r29, REGSIZE }
115 { ld r2, r29; ADDI_PTR r29, r29, REGSIZE }
116 { ld r3, r29; ADDI_PTR r29, r29, REGSIZE }
117 { ld r4, r29; ADDI_PTR r29, r29, REGSIZE }
118 { ld r5, r29; ADDI_PTR r29, r29, REGSIZE }
119 { ld r6, r29; ADDI_PTR r29, r29, REGSIZE }
120 { ld r7, r29; ADDI_PTR r29, r29, REGSIZE }
121 { ld r8, r29; ADDI_PTR r29, r29, REGSIZE }
122 { ld r9, r29; ADDI_PTR r29, r29, REGSIZE }
123 { ld r10, r29; ADDI_PTR r29, r29, REGSIZE }
124 { ld r11, r29; ADDI_PTR r29, r29, REGSIZE }
125 { ld r12, r29; ADDI_PTR r29, r29, REGSIZE }
126 { ld r13, r29; ADDI_PTR r29, r29, REGSIZE }
127 { ld r14, r29; ADDI_PTR r29, r29, REGSIZE }
128 { ld r15, r29; ADDI_PTR r29, r29, REGSIZE }
129 { ld r16, r29; ADDI_PTR r29, r29, REGSIZE }
130 { ld r17, r29; ADDI_PTR r29, r29, REGSIZE }
131 { ld r18, r29; ADDI_PTR r29, r29, REGSIZE }
132 { ld r19, r29; ADDI_PTR r29, r29, REGSIZE }
133 { ld r20, r29; ADDI_PTR r29, r29, REGSIZE }
134 { ld r21, r29; ADDI_PTR r29, r29, REGSIZE }
135 { ld r22, r29; ADDI_PTR r29, r29, REGSIZE }
136 { ld r23, r29; ADDI_PTR r29, r29, REGSIZE }
137 { ld r24, r29; ADDLI_PTR sp, sp, (26 * REGSIZE) }
138 cfi_def_cfa_offset (0)