git://sourceware.org / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 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__ |
| 131fd126 UD |
23 | # include <linuxthreads/internals.h> |
| 24 | #endif | |
| 25 | ||
| 131fd126 UD |
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 | brz,pn %g1, 1f; \ |
| 34 | mov SYS_ify(syscall_name), %g1; \ | |
| 35 | ta 0x6d; \ | |
| 36 | bcs,pn %xcc, __syscall_error_handler; \ | |
| 37 | nop; \ | |
| 38 | .subsection 2; \ | |
| 39 | 1: save %sp, -192, %sp; \ | |
| 40 | CENABLE; \ | |
| 41 | nop; \ | |
| 42 | mov %o0, %l0; \ | |
| 43 | COPY_ARGS_##args \ | |
| 44 | mov SYS_ify(syscall_name), %g1; \ | |
| 45 | ta 0x6d; \ | |
| 46 | bcs,pn %xcc, __syscall_error_handler2; \ | |
| 47 | mov %o0, %l1; \ | |
| 48 | CDISABLE; \ | |
| 49 | mov %l0, %o0; \ | |
| 50 | jmpl %i7 + 8, %g0; \ | |
| 51 | restore %g0, %l1, %o0; \ | |
| 52 | .previous; \ | |
| 53 | SYSCALL_ERROR_HANDLER \ | |
| 54 | SYSCALL_ERROR_HANDLER2 | |
| 55 | ||
| 56 | #define SYSCALL_ERROR_HANDLER2 \ | |
| 57 | SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler2) \ | |
| 58 | .global __errno_location; \ | |
| 59 | .type __errno_location,@function; \ | |
| 60 | call __errno_location; \ | |
| 61 | nop; \ | |
| 62 | st %l1, [%o0]; \ | |
| 63 | jmpl %i7 + 8, %g0; \ | |
| 64 | restore %g0, -1, %o0; \ | |
| 65 | .previous; | |
| 66 | ||
| 67 | # ifdef IS_IN_libpthread | |
| 68 | # define CENABLE call __pthread_enable_asynccancel | |
| 69 | # define CDISABLE call __pthread_disable_asynccancel | |
| 70 | # else | |
| 71 | # define CENABLE call __libc_enable_asynccancel | |
| 72 | # define CDISABLE call __libc_disable_asynccancel | |
| 73 | # endif | |
| 74 | ||
| 75 | #define COPY_ARGS_0 /* Nothing */ | |
| 76 | #define COPY_ARGS_1 COPY_ARGS_0 mov %i0, %o0; | |
| 77 | #define COPY_ARGS_2 COPY_ARGS_1 mov %i1, %o1; | |
| 78 | #define COPY_ARGS_3 COPY_ARGS_2 mov %i2, %o2; | |
| 79 | #define COPY_ARGS_4 COPY_ARGS_3 mov %i3, %o3; | |
| 80 | #define COPY_ARGS_5 COPY_ARGS_4 mov %i4, %o4; | |
| 81 | #define COPY_ARGS_6 COPY_ARGS_5 mov %i5, %o5; | |
| 82 | ||
| a4baf360 | 83 | # ifndef __ASSEMBLER__ |
| 131fd126 UD |
84 | # define SINGLE_THREAD_P \ |
| 85 | __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ | |
| 86 | p_header.data.multiple_threads) == 0, 1) | |
| 87 | # else | |
| 62f29da7 | 88 | # define SINGLE_THREAD_P ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1 |
| 131fd126 UD |
89 | # endif |
| 90 | ||
| a4baf360 | 91 | #elif !defined __ASSEMBLER__ |
| 131fd126 UD |
92 | |
| 93 | /* This code should never be used but we define it anyhow. */ | |
| 94 | # define SINGLE_THREAD_P (1) | |
| 95 | ||
| 96 | #endif |