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62f29da7 | 1 | /* Copyright (C) 2002, 2003 Free Software Foundation, Inc. |
131fd126 UD |
2 | This file is part of the GNU C Library. |
3 | Contributed by Jakub Jelinek <jakub@redhat.com>, 2002. | |
4 | ||
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. | |
9 | ||
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. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, write to the Free | |
17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
18 | 02111-1307 USA. */ | |
19 | ||
20 | #include <sysdep.h> | |
21 | #include <tls.h> | |
a4baf360 | 22 | #ifndef __ASSEMBLER__ |
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23 | # include <linuxthreads/internals.h> |
24 | #endif | |
25 | ||
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26 | #if !defined NOT_IN_libc || defined IS_IN_libpthread |
27 | ||
28 | # undef PSEUDO | |
29 | # define PSEUDO(name, syscall_name, args) \ | |
30 | .text; \ | |
31 | ENTRY(name) \ | |
62f29da7 | 32 | ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1; \ |
131fd126 UD |
33 | cmp %g1, 0; \ |
34 | bne 1f; \ | |
35 | mov SYS_ify(syscall_name), %g1; \ | |
36 | ta 0x10; \ | |
37 | bcs __syscall_error_handler; \ | |
38 | nop; \ | |
39 | .subsection 2; \ | |
40 | 1: save %sp, -96, %sp; \ | |
41 | CENABLE; \ | |
42 | nop; \ | |
43 | mov %o0, %l0; \ | |
44 | COPY_ARGS_##args \ | |
45 | mov SYS_ify(syscall_name), %g1; \ | |
46 | ta 0x10; \ | |
47 | bcs __syscall_error_handler2; \ | |
48 | mov %o0, %l1; \ | |
49 | CDISABLE; \ | |
50 | mov %l0, %o0; \ | |
51 | jmpl %i7 + 8, %g0; \ | |
52 | restore %g0, %l1, %o0; \ | |
53 | .previous; \ | |
54 | SYSCALL_ERROR_HANDLER \ | |
55 | SYSCALL_ERROR_HANDLER2 | |
56 | ||
57 | #define SYSCALL_ERROR_HANDLER2 \ | |
58 | SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler2) \ | |
59 | .global __errno_location; \ | |
60 | .type __errno_location,@function; \ | |
61 | call __errno_location; \ | |
62 | nop; \ | |
63 | st %l1, [%o0]; \ | |
64 | jmpl %i7 + 8, %g0; \ | |
65 | restore %g0, -1, %o0; \ | |
66 | .previous; | |
67 | ||
68 | # ifdef IS_IN_libpthread | |
69 | # define CENABLE call __pthread_enable_asynccancel | |
70 | # define CDISABLE call __pthread_disable_asynccancel | |
71 | # else | |
72 | # define CENABLE call __libc_enable_asynccancel | |
73 | # define CDISABLE call __libc_disable_asynccancel | |
74 | # endif | |
75 | ||
76 | #define COPY_ARGS_0 /* Nothing */ | |
77 | #define COPY_ARGS_1 COPY_ARGS_0 mov %i0, %o0; | |
78 | #define COPY_ARGS_2 COPY_ARGS_1 mov %i1, %o1; | |
79 | #define COPY_ARGS_3 COPY_ARGS_2 mov %i2, %o2; | |
80 | #define COPY_ARGS_4 COPY_ARGS_3 mov %i3, %o3; | |
81 | #define COPY_ARGS_5 COPY_ARGS_4 mov %i4, %o4; | |
82 | #define COPY_ARGS_6 COPY_ARGS_5 mov %i5, %o5; | |
83 | ||
a4baf360 | 84 | # ifndef __ASSEMBLER__ |
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85 | # define SINGLE_THREAD_P \ |
86 | __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ | |
87 | p_header.data.multiple_threads) == 0, 1) | |
88 | # else | |
62f29da7 | 89 | # define SINGLE_THREAD_P ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1 |
131fd126 UD |
90 | # endif |
91 | ||
a4baf360 | 92 | #elif !defined __ASSEMBLER__ |
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93 | |
94 | /* This code should never be used but we define it anyhow. */ | |
95 | # define SINGLE_THREAD_P (1) | |
96 | ||
97 | #endif |