[thirdparty/glibc.git] / linuxthreads / sysdeps / unix / sysv / linux / m68k / sysdep-cancel.h

/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Andreas Schwab <schwab@suse.de>, 2002.

   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>
#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;								      \
  ENTRY (name)								      \
    SINGLE_THREAD_P;							      \
    jne .Lpseudo_cancel;						      \
    DO_CALL (syscall_name, args);					      \
    cmp.l &-4095, %d0;							      \
    jcc SYSCALL_ERROR_LABEL;						      \
    rts;								      \
  .Lpseudo_cancel:							      \
    CENABLE;								      \
    DOCARGS_##args							      \
    move.l %d0, -(%sp);							      \
    move.l &SYS_ify (syscall_name), %d0;				      \
    trap &0;								      \
    move.l %d0, %d2;							      \
    CDISABLE;								      \
    addq.l &4, %sp;							      \
    move.l %d2, %d0;							      \
    UNDOCARGS_##args							      \
    cmp.l &-4095, %d0;							      \
    jcc SYSCALL_ERROR_LABEL

# define DOCARGS_0	move.l %d2, -(%sp);
# define _DOCARGS_0(n)
# define UNDOCARGS_0	move.l (%sp)+, %d2;

# define DOCARGS_1	_DOCARGS_1 (4); DOCARGS_0
# define _DOCARGS_1(n)	move.l n(%sp), %d1; _DOARGS_0 (n)
# define UNDOCARGS_1	UNDOCARGS_0

# define DOCARGS_2	_DOCARGS_2 (8)
# define _DOCARGS_2(n)	move.l %d2, -(%sp); move.l n+4(%sp), %d2;	\
			_DOCARGS_1 (n)
# define UNDOCARGS_2	UNDOCARGS_1

# define DOCARGS_3	_DOCARGS_3 (12)
# define _DOCARGS_3(n)	move.l %d3, -(%sp); move.l n+4(%sp), %d3;	\
  	 		_DOCARGS_2 (n)
# define UNDOCARGS_3	UNDOCARGS_2; move.l (%sp)+, %d3;

# define DOCARGS_4	_DOCARGS_4 (16)
# define _DOCARGS_4(n)	move.l %d4, -(%sp); move.l n+4(%sp), %d4;	\
			_DOCARGS_3 (n)
# define UNDOCARGS_4	UNDOCARGS_3; move.l (%sp)+, %d4;

# define DOCARGS_5	_DOCARGS_5 (20)
# define _DOCARGS_5(n)	move.l %d5, -(%sp); move.l n+4(%sp), %d5;	\
			_DOCARGS_4 (n)
# define UNDOCARGS_5	UNDOCARGS_4; move.l (%sp)+, %d5;

# ifdef IS_IN_libpthread
#  ifdef PIC
#   define CENABLE	jbsr __pthread_enable_asynccancel@PLTPC
#   define CDISABLE	jbsr __pthread_disable_asynccancel@PLTPC
#  else
#   define CENABLE	jbsr __pthread_enable_asynccancel
#   define CDISABLE	jbsr __pthread_disable_asynccancel
#  endif
# elif !defined NOT_IN_libc
#  ifdef PIC
#   define CENABLE	jbsr __libc_enable_asynccancel@PLTPC
#   define CDISABLE	jbsr __libc_disable_asynccancel@PLTPC
#  else
#   define CENABLE	jbsr __libc_enable_asynccancel
#   define CDISABLE	jbsr __libc_disable_asynccancel
#  endif
# else
#  ifdef PIC
#   define CENABLE	jbsr __librt_enable_asynccancel@PLTPC
#   define CDISABLE	jbsr __librt_disable_asynccancel@PLTPC
#  else
#   define CENABLE	jbsr __librt_enable_asynccancel
#   define CDISABLE	jbsr __librt_disable_asynccancel
#  endif
# endif

# if !defined NOT_IN_libc
#  define __local_multiple_threads __libc_multiple_threads
# elif defined IS_IN_libpthread
#  define __local_multiple_threads __pthread_multiple_threads
# else
#  define __local_multiple_threads __librt_multiple_threads
# endif

# ifndef __ASSEMBLER__
extern int __local_multiple_threads attribute_hidden;
#  define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
# else
#  if !defined PIC
#   define SINGLE_THREAD_P tst.l __local_multiple_threads
#  else
#   define SINGLE_THREAD_P tst.l (__local_multiple_threads, %pc)
#  endif
# endif

#elif !defined __ASSEMBLER__

/* This code should never be used but we define it anyhow.  */
# define SINGLE_THREAD_P (1)

#endif
Commit	Line	Data
8ecfaf1a	1	/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
97d0db28 AS	2	This file is part of the GNU C Library.
	3	Contributed by Andreas Schwab <schwab@suse.de>, 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>
a4baf360	21	#ifndef __ASSEMBLER__
97d0db28 AS	22	# include <linuxthreads/internals.h>
	23	#endif
	24
a10d475d	25	#if !defined NOT_IN_libc \|\| defined IS_IN_libpthread \|\| defined IS_IN_librt
97d0db28 AS	26
	27	# undef PSEUDO
	28	# define PSEUDO(name, syscall_name, args) \
	29	.text; \
	30	ENTRY (name) \
	31	SINGLE_THREAD_P; \
	32	jne .Lpseudo_cancel; \
	33	DO_CALL (syscall_name, args); \
	34	cmp.l &-4095, %d0; \
	35	jcc SYSCALL_ERROR_LABEL; \
	36	rts; \
	37	.Lpseudo_cancel: \
	38	CENABLE; \
	39	DOCARGS_##args \
4f172c25	40	move.l %d0, -(%sp); \
97d0db28 AS	41	move.l &SYS_ify (syscall_name), %d0; \
	42	trap &0; \
	43	move.l %d0, %d2; \
	44	CDISABLE; \
	45	addq.l &4, %sp; \
	46	move.l %d2, %d0; \
	47	UNDOCARGS_##args \
	48	cmp.l &-4095, %d0; \
	49	jcc SYSCALL_ERROR_LABEL
	50
	51	# define DOCARGS_0 move.l %d2, -(%sp);
	52	# define _DOCARGS_0(n)
	53	# define UNDOCARGS_0 move.l (%sp)+, %d2;
	54
	55	# define DOCARGS_1 _DOCARGS_1 (4); DOCARGS_0
	56	# define _DOCARGS_1(n) move.l n(%sp), %d1; _DOARGS_0 (n)
	57	# define UNDOCARGS_1 UNDOCARGS_0
	58
	59	# define DOCARGS_2 _DOCARGS_2 (8)
	60	# define _DOCARGS_2(n) move.l %d2, -(%sp); move.l n+4(%sp), %d2; \
	61	_DOCARGS_1 (n)
	62	# define UNDOCARGS_2 UNDOCARGS_1
	63
	64	# define DOCARGS_3 _DOCARGS_3 (12)
	65	# define _DOCARGS_3(n) move.l %d3, -(%sp); move.l n+4(%sp), %d3; \
	66	_DOCARGS_2 (n)
	67	# define UNDOCARGS_3 UNDOCARGS_2; move.l (%sp)+, %d3;
	68
	69	# define DOCARGS_4 _DOCARGS_4 (16)
	70	# define _DOCARGS_4(n) move.l %d4, -(%sp); move.l n+4(%sp), %d4; \
	71	_DOCARGS_3 (n)
	72	# define UNDOCARGS_4 UNDOCARGS_3; move.l (%sp)+, %d4;
	73
	74	# define DOCARGS_5 _DOCARGS_5 (20)
	75	# define _DOCARGS_5(n) move.l %d5, -(%sp); move.l n+4(%sp), %d5; \
	76	_DOCARGS_4 (n)
	77	# define UNDOCARGS_5 UNDOCARGS_4; move.l (%sp)+, %d5;
	78
	79	# ifdef IS_IN_libpthread
8ecfaf1a AS	80	# ifdef PIC
	81	# define CENABLE jbsr __pthread_enable_asynccancel@PLTPC
	82	# define CDISABLE jbsr __pthread_disable_asynccancel@PLTPC
	83	# else
	84	# define CENABLE jbsr __pthread_enable_asynccancel
	85	# define CDISABLE jbsr __pthread_disable_asynccancel
	86	# endif
a10d475d	87	# elif !defined NOT_IN_libc
8ecfaf1a AS	88	# ifdef PIC
	89	# define CENABLE jbsr __libc_enable_asynccancel@PLTPC
	90	# define CDISABLE jbsr __libc_disable_asynccancel@PLTPC
	91	# else
	92	# define CENABLE jbsr __libc_enable_asynccancel
	93	# define CDISABLE jbsr __libc_disable_asynccancel
	94	# endif
a10d475d AS	95	# else
	96	# ifdef PIC
	97	# define CENABLE jbsr __librt_enable_asynccancel@PLTPC
	98	# define CDISABLE jbsr __librt_disable_asynccancel@PLTPC
	99	# else
	100	# define CENABLE jbsr __librt_enable_asynccancel
	101	# define CDISABLE jbsr __librt_disable_asynccancel
	102	# endif
97d0db28 AS	103	# endif
	104
	105	# if !defined NOT_IN_libc
	106	# define __local_multiple_threads __libc_multiple_threads
a10d475d	107	# elif defined IS_IN_libpthread
97d0db28	108	# define __local_multiple_threads __pthread_multiple_threads
a10d475d AS	109	# else
a10d475d AS	110	# define __local_multiple_threads __librt_multiple_threads
97d0db28 AS	111	# endif
97d0db28 AS	112
a4baf360	113	# ifndef __ASSEMBLER__
97d0db28 AS	114	extern int __local_multiple_threads attribute_hidden;
	115	# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
	116	# else
	117	# if !defined PIC
	118	# define SINGLE_THREAD_P tst.l __local_multiple_threads
	119	# else
8ecfaf1a	120	# define SINGLE_THREAD_P tst.l (__local_multiple_threads, %pc)
97d0db28 AS	121	# endif
	122	# endif
	123
a4baf360	124	#elif !defined __ASSEMBLER__
97d0db28 AS	125
	126	/* This code should never be used but we define it anyhow. */
	127	# define SINGLE_THREAD_P (1)
	128
	129	#endif