Permalink
Cannot retrieve contributors at this time
Name already in use
A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?
glibc/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h
Go to fileThis commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
102 lines (89 sloc)
3.21 KB
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/* Copyright (C) 2003 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Lesser General Public | |
License as published by the Free Software Foundation; either | |
version 2.1 of the License, or (at your option) any later version. | |
The GNU C Library is distributed in the hope that it will be useful, | |
but WITHOUT ANY WARRANTY; without even the implied warranty of | |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
Lesser General Public License for more details. | |
You should have received a copy of the GNU Lesser General Public | |
License along with the GNU C Library; if not, write to the Free | |
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
02111-1307 USA. */ | |
#include <sysdep.h> | |
#include <tls.h> | |
#ifndef __ASSEMBLER__ | |
# include <linuxthreads/internals.h> | |
#endif | |
#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt | |
# undef PSEUDO | |
# define PSEUDO(name, syscall_name, args) \ | |
.text; \ | |
L(pseudo_cancel): \ | |
STM_##args \ | |
stm %r12,%r15,48(%r15); \ | |
lr %r14,%r15; \ | |
ahi %r15,-96; \ | |
st %r14,0(%r15); \ | |
basr %r13,0; \ | |
0: l %r1,1f-0b(%r13); \ | |
bas %r14,0(%r1,%r13); \ | |
lr %r0,%r2; \ | |
LM_##args \ | |
DO_CALL(syscall_name, args); \ | |
l %r1,2f-0b(%r13); \ | |
lr %r12,%r2; \ | |
lr %r2,%r0; \ | |
bas %r14,0(%r1,%r13); \ | |
lr %r2,%r12; \ | |
lm %r12,%r15,48+96(%r15); \ | |
j L(pseudo_check); \ | |
1: .long CENABLE-0b; \ | |
2: .long CDISABLE-0b; \ | |
ENTRY(name) \ | |
SINGLE_THREAD_P(%r1) \ | |
jne L(pseudo_cancel); \ | |
DO_CALL(syscall_name, args); \ | |
L(pseudo_check): \ | |
lhi %r4,-4095; \ | |
clr %r2,%r4; \ | |
jnl SYSCALL_ERROR_LABEL; \ | |
L(pseudo_end): | |
# ifdef IS_IN_libpthread | |
# define CENABLE __pthread_enable_asynccancel | |
# define CDISABLE __pthread_disable_asynccancel | |
# elif !defined NOT_IN_libc | |
# define CENABLE __libc_enable_asynccancel | |
# define CDISABLE __libc_disable_asynccancel | |
# else | |
# define CENABLE __librt_enable_asynccancel | |
# define CDISABLE __librt_disable_asynccancel | |
# endif | |
#define STM_0 /* Nothing */ | |
#define STM_1 st %r2,8(%r15); | |
#define STM_2 stm %r2,%r3,8(%r15); | |
#define STM_3 stm %r2,%r4,8(%r15); | |
#define STM_4 stm %r2,%r5,8(%r15); | |
#define STM_5 stm %r2,%r5,8(%r15); | |
#define LM_0 /* Nothing */ | |
#define LM_1 l %r2,8+96(%r15); | |
#define LM_2 lm %r2,%r3,8+96(%r15); | |
#define LM_3 lm %r2,%r4,8+96(%r15); | |
#define LM_4 lm %r2,%r5,8+96(%r15); | |
#define LM_5 lm %r2,%r5,8+96(%r15); | |
# ifndef __ASSEMBLER__ | |
# define SINGLE_THREAD_P \ | |
__builtin_expect (THREAD_GETMEM (THREAD_SELF, \ | |
p_header.data.multiple_threads) == 0, 1) | |
# else | |
# define SINGLE_THREAD_P(reg) \ | |
ear reg,%a0; \ | |
icm reg,15,MULTIPLE_THREADS_OFFSET(reg); | |
# endif | |
#elif !defined __ASSEMBLER__ | |
/* This code should never be used but we define it anyhow. */ | |
# define SINGLE_THREAD_P (1) | |
#endif |