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130 lines
4.2 KiB
C
130 lines
4.2 KiB
C
/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Andreas Schwab <schwab@suse.de>, 2002.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep.h>
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#ifndef __ASSEMBLER__
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# include <linuxthreads/internals.h>
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#endif
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#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
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# undef PSEUDO
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# define PSEUDO(name, syscall_name, args) \
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.text; \
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ENTRY (name) \
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SINGLE_THREAD_P; \
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jne .Lpseudo_cancel; \
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DO_CALL (syscall_name, args); \
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cmp.l &-4095, %d0; \
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jcc SYSCALL_ERROR_LABEL; \
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rts; \
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.Lpseudo_cancel: \
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CENABLE; \
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DOCARGS_##args \
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move.l %d0, -(%sp); \
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move.l &SYS_ify (syscall_name), %d0; \
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trap &0; \
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move.l %d0, %d2; \
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CDISABLE; \
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addq.l &4, %sp; \
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move.l %d2, %d0; \
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UNDOCARGS_##args \
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cmp.l &-4095, %d0; \
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jcc SYSCALL_ERROR_LABEL
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# define DOCARGS_0 move.l %d2, -(%sp);
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# define _DOCARGS_0(n)
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# define UNDOCARGS_0 move.l (%sp)+, %d2;
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# define DOCARGS_1 _DOCARGS_1 (4); DOCARGS_0
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# define _DOCARGS_1(n) move.l n(%sp), %d1; _DOARGS_0 (n)
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# define UNDOCARGS_1 UNDOCARGS_0
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# define DOCARGS_2 _DOCARGS_2 (8)
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# define _DOCARGS_2(n) move.l %d2, -(%sp); move.l n+4(%sp), %d2; \
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_DOCARGS_1 (n)
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# define UNDOCARGS_2 UNDOCARGS_1
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# define DOCARGS_3 _DOCARGS_3 (12)
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# define _DOCARGS_3(n) move.l %d3, -(%sp); move.l n+4(%sp), %d3; \
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_DOCARGS_2 (n)
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# define UNDOCARGS_3 UNDOCARGS_2; move.l (%sp)+, %d3;
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# define DOCARGS_4 _DOCARGS_4 (16)
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# define _DOCARGS_4(n) move.l %d4, -(%sp); move.l n+4(%sp), %d4; \
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_DOCARGS_3 (n)
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# define UNDOCARGS_4 UNDOCARGS_3; move.l (%sp)+, %d4;
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# define DOCARGS_5 _DOCARGS_5 (20)
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# define _DOCARGS_5(n) move.l %d5, -(%sp); move.l n+4(%sp), %d5; \
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_DOCARGS_4 (n)
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# define UNDOCARGS_5 UNDOCARGS_4; move.l (%sp)+, %d5;
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# ifdef IS_IN_libpthread
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# ifdef PIC
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# define CENABLE jbsr __pthread_enable_asynccancel@PLTPC
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# define CDISABLE jbsr __pthread_disable_asynccancel@PLTPC
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# else
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# define CENABLE jbsr __pthread_enable_asynccancel
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# define CDISABLE jbsr __pthread_disable_asynccancel
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# endif
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# elif !defined NOT_IN_libc
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# ifdef PIC
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# define CENABLE jbsr __libc_enable_asynccancel@PLTPC
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# define CDISABLE jbsr __libc_disable_asynccancel@PLTPC
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# else
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# define CENABLE jbsr __libc_enable_asynccancel
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# define CDISABLE jbsr __libc_disable_asynccancel
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# endif
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# else
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# ifdef PIC
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# define CENABLE jbsr __librt_enable_asynccancel@PLTPC
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# define CDISABLE jbsr __librt_disable_asynccancel@PLTPC
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# else
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# define CENABLE jbsr __librt_enable_asynccancel
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# define CDISABLE jbsr __librt_disable_asynccancel
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# endif
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# endif
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# if !defined NOT_IN_libc
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# define __local_multiple_threads __libc_multiple_threads
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# elif defined IS_IN_libpthread
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# define __local_multiple_threads __pthread_multiple_threads
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# else
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# define __local_multiple_threads __librt_multiple_threads
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# endif
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# ifndef __ASSEMBLER__
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extern int __local_multiple_threads attribute_hidden;
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# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
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# else
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# if !defined PIC
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# define SINGLE_THREAD_P tst.l __local_multiple_threads
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# else
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# define SINGLE_THREAD_P tst.l (__local_multiple_threads, %pc)
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# endif
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# endif
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#elif !defined __ASSEMBLER__
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/* This code should never be used but we define it anyhow. */
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# define SINGLE_THREAD_P (1)
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#endif
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