1 /* Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
21 # include <nptl/pthreadP.h>
24 #if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
30 # define PSEUDO(name, syscall_name, args) \
36 .type __##syscall_name##_nocancel,@function; \
37 .globl __##syscall_name##_nocancel; \
38 __##syscall_name##_nocancel: \
39 DO_CALL (syscall_name, args); \
48 .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \
51 cfi_adjust_cfa_offset (4); \
52 cfi_rel_offset (pr, 0); \
54 cfi_adjust_cfa_offset (16); \
59 cfi_adjust_cfa_offset (-16); \
61 cfi_adjust_cfa_offset (-4); \
63 DO_CALL(syscall_name, args); \
66 cfi_adjust_cfa_offset (4); \
67 cfi_rel_offset (pr, 0); \
69 cfi_adjust_cfa_offset (4); \
70 cfi_rel_offset (r0, 0); \
73 cfi_adjust_cfa_offset (-4); \
75 cfi_adjust_cfa_offset (-4); \
84 SYSCALL_ERROR_HANDLER; \
88 # define PSEUDO_END(sym) \
91 # define SAVE_ARGS_0 /* Nothing. */
92 # define SAVE_ARGS_1 SAVE_ARGS_0; mov.l r4,@(0,r15); cfi_offset (r4,-4)
93 # define SAVE_ARGS_2 SAVE_ARGS_1; mov.l r5,@(4,r15); cfi_offset (r5,-8)
94 # define SAVE_ARGS_3 SAVE_ARGS_2; mov.l r6,@(8,r15); cfi_offset (r6,-12)
95 # define SAVE_ARGS_4 SAVE_ARGS_3; mov.l r7,@(12,r15); cfi_offset (r7,-16)
96 # define SAVE_ARGS_5 SAVE_ARGS_4
97 # define SAVE_ARGS_6 SAVE_ARGS_5
99 # define LOAD_ARGS_0 /* Nothing. */
100 # define LOAD_ARGS_1 LOAD_ARGS_0; mov.l @(0,r15),r4
101 # define LOAD_ARGS_2 LOAD_ARGS_1; mov.l @(4,r15),r5
102 # define LOAD_ARGS_3 LOAD_ARGS_2; mov.l @(8,r15),r6
103 # define LOAD_ARGS_4 LOAD_ARGS_3; mov.l @(12,r15),r7
104 # define LOAD_ARGS_5 LOAD_ARGS_4
105 # define LOAD_ARGS_6 LOAD_ARGS_5
107 # ifdef IS_IN_libpthread
108 # define __local_enable_asynccancel __pthread_enable_asynccancel
109 # define __local_disable_asynccancel __pthread_disable_asynccancel
110 # elif !defined NOT_IN_libc
111 # define __local_enable_asynccancel __libc_enable_asynccancel
112 # define __local_disable_asynccancel __libc_disable_asynccancel
113 # elif defined IS_IN_librt
114 # define __local_enable_asynccancel __librt_enable_asynccancel
115 # define __local_disable_asynccancel __librt_disable_asynccancel
117 # error Unsupported library
127 1: .long __local_enable_asynccancel - 0b; \
137 1: .long __local_disable_asynccancel - 0b; \
140 # ifndef __ASSEMBLER__
141 # define SINGLE_THREAD_P \
142 __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
143 header.multiple_threads) == 0, 1)
145 # define SINGLE_THREAD_P \
149 mov.l @(MULTIPLE_THREADS_OFFSET,r0),r0; \
152 0: .word TLS_PRE_TCB_SIZE; \
157 #elif !defined __ASSEMBLER__
159 # define SINGLE_THREAD_P (1)
160 # define NO_CANCELLATION 1
164 #ifndef __ASSEMBLER__
165 # define RTLD_SINGLE_THREAD_P \
166 __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
167 header.multiple_threads) == 0, 1)