Move remaining SPARC code out of nptl/.
[glibc.git] / sysdeps / unix / sysv / linux / sparc / sparc64 / sysdep-cancel.h
blob4dad994ab3974049f7de6003427f3e30f22dc008
1 /* Copyright (C) 2002-2014 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Jakub Jelinek <jakub@redhat.com>, 2002.
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/>. */
19 #include <sysdep.h>
20 #include <tls.h>
21 #ifndef __ASSEMBLER__
22 # include <nptl/pthreadP.h>
23 #endif
25 #if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
27 # undef PSEUDO
28 # define PSEUDO(name, syscall_name, args) \
29 .text; \
30 .globl __syscall_error; \
31 ENTRY(name) \
32 ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1;\
33 brnz,pn %g1, 1f; \
34 .type __##syscall_name##_nocancel,@function; \
35 .globl __##syscall_name##_nocancel; \
36 __##syscall_name##_nocancel: \
37 mov SYS_ify(syscall_name), %g1; \
38 ta 0x6d; \
39 bcc,pt %xcc, 8f; \
40 mov %o7, %g1; \
41 call __syscall_error; \
42 mov %g1, %o7; \
43 8: jmpl %o7 + 8, %g0; \
44 nop; \
45 .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel;\
46 1: save %sp, -192, %sp; \
47 cfi_def_cfa_register(%fp); \
48 cfi_window_save; \
49 cfi_register(%o7, %i7); \
50 CENABLE; \
51 nop; \
52 mov %o0, %l0; \
53 COPY_ARGS_##args \
54 mov SYS_ify(syscall_name), %g1; \
55 ta 0x6d; \
56 bcc,pt %xcc, 1f; \
57 mov %o0, %l1; \
58 CDISABLE; \
59 mov %l0, %o0; \
60 call __syscall_error; \
61 mov %l1, %o0; \
62 ba,pt %xcc, 2f; \
63 mov -1, %l1; \
64 1: CDISABLE; \
65 mov %l0, %o0; \
66 2: jmpl %i7 + 8, %g0; \
67 restore %g0, %l1, %o0;
69 # ifdef IS_IN_libpthread
70 # define CENABLE call __pthread_enable_asynccancel
71 # define CDISABLE call __pthread_disable_asynccancel
72 # elif !defined NOT_IN_libc
73 # define CENABLE call __libc_enable_asynccancel
74 # define CDISABLE call __libc_disable_asynccancel
75 # elif defined IS_IN_librt
76 # define CENABLE call __librt_enable_asynccancel
77 # define CDISABLE call __librt_disable_asynccancel
78 # else
79 # error Unsupported library
80 # endif
82 #define COPY_ARGS_0 /* Nothing */
83 #define COPY_ARGS_1 COPY_ARGS_0 mov %i0, %o0;
84 #define COPY_ARGS_2 COPY_ARGS_1 mov %i1, %o1;
85 #define COPY_ARGS_3 COPY_ARGS_2 mov %i2, %o2;
86 #define COPY_ARGS_4 COPY_ARGS_3 mov %i3, %o3;
87 #define COPY_ARGS_5 COPY_ARGS_4 mov %i4, %o4;
88 #define COPY_ARGS_6 COPY_ARGS_5 mov %i5, %o5;
90 # ifndef __ASSEMBLER__
91 # define SINGLE_THREAD_P \
92 __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
93 header.multiple_threads) == 0, 1)
94 # else
95 # define SINGLE_THREAD_P ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1
96 # endif
98 #elif !defined __ASSEMBLER__
100 # define SINGLE_THREAD_P (1)
101 # define NO_CANCELLATION 1
103 #endif
105 #ifndef __ASSEMBLER__
106 # define RTLD_SINGLE_THREAD_P \
107 __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
108 header.multiple_threads) == 0, 1)
109 #endif