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/* 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
# undef PSEUDO
# define PSEUDO(name, syscall_name, args) \
.text; \
ENTRY(name) \
SINGLE_THREAD_P \
jne L(pseudo_cancel); \
DO_CALL(syscall_name, args); \
lghi %r4,-4095; \
clgr %r2,%r4; \
jnl SYSCALL_ERROR_LABEL; \
br %r14; \
L(pseudo_cancel): \
STM_##args \
stmg %r13,%r15,104(%r15); \
aghi %r15,-192; \
brasl %r14,CENABLE; \
lr %r0,%r2; \
LM_##args \
DO_CALL(syscall_name, args); \
lgr %r13,%r2; \
lr %r2,%r0; \
brasl %r14,CDISABLE; \
lgr %r2,%r13; \
lmg %r13,%r15,104+192(%r15); \
lghi %r4,-4095; \
clgr %r2,%r4; \
jnl SYSCALL_ERROR_LABEL; \
L(pseudo_end):
# ifdef IS_IN_libpthread
# define CENABLE __pthread_enable_asynccancel
# define CDISABLE __pthread_disable_asynccancel
# define __local_multiple_threads __pthread_multiple_threads
# else
# define CENABLE __libc_enable_asynccancel
# define CDISABLE __libc_disable_asynccancel
# define __local_multiple_threads __libc_multiple_threads
# endif
#define STM_0 /* Nothing */
#define STM_1 stg %r2,16(%r15);
#define STM_2 stmg %r2,%r3,16(%r15);
#define STM_3 stmg %r2,%r4,16(%r15);
#define STM_4 stmg %r2,%r5,16(%r15);
#define STM_5 stmg %r2,%r5,16(%r15);
#define LM_0 /* Nothing */
#define LM_1 lg %r2,16+192(%r15);
#define LM_2 lmg %r2,%r3,16+192(%r15);
#define LM_3 lmg %r2,%r4,16+192(%r15);
#define LM_4 lmg %r2,%r5,16+192(%r15);
#define LM_5 lmg %r2,%r5,16+192(%r15);
# ifndef __ASSEMBLER__
extern int __local_multiple_threads attribute_hidden;
# define SINGLE_THREAD_P \
__builtin_expect (__local_multiple_threads == 0, 1)
# else
# define SINGLE_THREAD_P \
larl %r1,__local_multiple_threads; \
icm %r0,15,0(%r1);
# endif
#elif !defined __ASSEMBLER__
/* This code should never be used but we define it anyhow. */
# define SINGLE_THREAD_P (1)
#endif
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