glibc/sysdeps/alpha/fpu/fpu_control.h
Roland McGrath ffa8d2a098 * locale/programs/ld-ctype.c (ctype_read): When given a repertoire
name of "", store a null pointer instead.

	* configure.in (elf): Set to yes for freebsd*, netbsd*.
	* configure: Regenerated.

	* locale/xlocale.c [! (USE_TLS && HAVE___THREAD)] (__libc_tsd_LOCALE):
	Initialize this instead of __libc_tsd_LOCALE_data.

	* sysdeps/unix/grantpt.c (pts_name): Convert ENOTTY return from
	ptsname_r to EINVAL.

	* sysdeps/generic/ptsname.c (__ptsname_r): Return ENOSYS instead of 0.

	* rt/Makefile: Revert last change, it was inappropriate to presume aio
	implementations depend on pthreads.
	* rt/tst-aio.c (do_test): Exit happy if first failure is ENOSYS.
	* rt/tst-aio64.c (do_test): Likewise.
	* rt/tst-aio2.c (do_test): Likewise.
	* rt/tst-aio3.c (do_test): Likewise.
	* rt/tst-aio4.c (do_test): Likewise.
	* rt/tst-aio5.c (do_test): Likewise.
	* rt/tst-aio6.c (do_test): Likewise.
	* rt/tst-aio7.c (do_test): Likewise.

	* sysdeps/generic/bits/libc-lock.h (__libc_setspecific): Use a cast to
	void so as to avoid compiler warnings.

	* libio/oldstdfiles.c [! _IO_MTSAFE_IO] (DEF_STDFILE): Don't define
	_IO_wide_data_FD, which is never used here.

	* libio/iofread.c
	[! _IO_MTSAFE_IO] (fread_unlocked): Add libc_hidden_ver defn.
	* libio/iofputs.c [! _IO_MTSAFE_IO] (fputs_unlocked): Likewise.
	* libio/iofgets.c [! _IO_MTSAFE_IO] (fgets_unlocked): Likewise.

	* include/resolv.h [! _LIBC_REENTRANT] (_res): #undef it before decl.
	* include/netdb.h [! _LIBC_REENTRANT] (h_errno): Declare normal extern.

	* misc/syslog.c (openlog): Conditionalize locking on [_LIBC_REENTRANT].
	(closelog): Likewise.

2002-07-06  Bruno Haible  <bruno@clisp.org>

	* sysdeps/alpha/fpu/fpu_control.h: Comment fix.

	* sysdeps/unix/sysv/linux/alpha/pipe.S: Moved to ...
	* sysdeps/unix/alpha/pipe.S: ... here.
	* sysdeps/unix/bsd/osf/alpha/pipe.S: File removed.

	* sysdeps/unix/i386/brk.S: Rename local label to '.Lhere' in ELF.

	* sysdeps/unix/i386/brk.S: Add PSEUDO_END invocation.
	* sysdeps/unix/i386/fork.S: Likewise.
	* sysdeps/unix/i386/pipe.S: Likewise.
	* sysdeps/unix/i386/wait.S: Likewise.

	* sysdeps/unix/fork.S: Fix PSEUDO_END argument.
	* sysdeps/unix/arm/fork.S: Likewise.

	* sysdeps/unix/sysv/linux/arm/sysdep.h (PSEUDO): Swap DO_CALL
	arguments.
	(DO_CALL): Swap argument order.
	* sysdeps/unix/sysv/linux/hppa/sysdep.h (PSEUDO): Swap DO_CALL
	arguments.
	(DO_CALL): Swap argument order.
	* sysdeps/unix/sysv/linux/i386/sysdep.h (PSEUDO): Swap DO_CALL
	arguments.
	(DO_CALL): Swap argument order.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h (PSEUDO): Swap DO_CALL
	arguments.
	(DO_CALL): Swap argument order.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h (PSEUDO): Swap DO_CALL
	arguments.
	(DO_CALL): Swap argument order.
	* sysdeps/unix/sysv/linux/sh/sysdep.h (PSEUDO): Swap DO_CALL
	arguments.
	(DO_CALL): Swap argument order.
	* sysdeps/unix/sysv/linux/x86_64/sysdep.h (PSEUDO): Swap DO_CALL
	arguments.
	(DO_CALL): Swap argument order.

	* sysdeps/i386/sysdep.h (PSEUDO): Fix syntax error.
	(L): Define right for ELF.
	* sysdeps/unix/sysv/linux/i386/sysdep.h (L): Remove definition.
	Now defined in sysdeps/i386/sysdep.h.

	* sysdeps/posix/readv.c: Ansify function definition.
	* sysdeps/posix/writev.c: Likewise.

	* stdio-common/tst-fseek.c (main): Don't assume that off_t and size_t
	have the same size. Avoid direct cast from size_t to off_t.

	* login/tst-utmp.c (simulate_login): Don't leave garbage after the
	nul byte in entry[n].ut_user.
	(simulate_logout): Likewise.

	* login/programs/utmpdump.c (print_entry): Test _HAVE_UT_TYPE,
	_HAVE_UT_PID, _HAVE_UT_ID, _HAVE_UT_HOST, instead of assuming the
	existence of corresponding members of 'struct utmp'.
	* login/tst-utmp.c: Trivialize the test if testing 'struct utmp' and
	!_HAVE_UT_TYPE.

	* sysdeps/unix/opendir.c (__opendir): If st_blksize is 0 or too small,
	allocate a buffer of at least BUFSIZ bytes, not just of
	sizeof (struct dirent).

	* sysdeps/generic/glob.c: Include <limits.h>.
	(NAME_MAX): Define a fallback.
	(glob_in_dir): Allocate enough room for a 'struct dirent64' on the
	stack.
	* posix/tst-dir.c: Include <stddef.h>, for offsetof.
	(main): Allocate enough room for a 'struct dirent64' on the stack.
	* posix/tst-gnuglob.c (my_DIR): Allocate enough room for a
	'struct dirent'.

	* sysdeps/unix/sysv/linux/init-first.c: Don't include
	kernel-features.h.

	* inet/htontest.c: Include <sys/types.h>.

	* sysdeps/generic/sys/sysinfo.h: Surround with __{BEGIN,END}_DECLS.

	* include/sys/sysctl.h: Comment fix.

	* elf/rtld.c (_rtld_global) [! _LIBC_REENTRANT]: Don't initialize
	_dl_load_lock.
	* libio/fileno.c (fileno_unlocked): Define regardless of _IO_MTSAFE_IO.

	* sysdeps/unix/bsd/bsd4.4/syscalls.list (__sigaltstack): New alias.

	* sysdeps/unix/inet/syscalls.list (__connect_internal): New alias.
	(__getpeername): New alias.
	(__getsockname): New alias.
	(__socket): New alias.

	* sysdeps/unix/common/syscalls.list (getpgid): Remove.

	* sysdeps/unix/syscalls.list (__chown_internal): New alias.
	(__fcntl_internal): New alias.
	(__profil): New alias.
2002-08-26 11:39:12 +00:00

107 lines
3.3 KiB
C

/* FPU control word bits. Alpha-mapped-to-Intel version.
Copyright (C) 1996, 1998, 2000, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Olaf Flebbe.
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. */
#ifndef _ALPHA_FPU_CONTROL_H
#define _ALPHA_FPU_CONTROL_H
/*
* Since many programs seem to hardcode the values passed to __setfpucw()
* (rather than using the manifest constants) we emulate the x87 interface
* here (at least where this makes sense).
*
* 15-13 12 11-10 9-8 7-6 5 4 3 2 1 0
* | reserved | IC | RC | PC | reserved | PM | UM | OM | ZM | DM | IM
*
* IM: Invalid operation mask
* DM: Denormalized operand mask
* ZM: Zero-divide mask
* OM: Overflow mask
* UM: Underflow mask
* PM: Precision (inexact result) mask
*
* Mask bit is 1 means no interrupt.
*
* PC: Precision control
* 11 - round to extended precision
* 10 - round to double precision
* 00 - round to single precision
*
* RC: Rounding control
* 00 - rounding to nearest
* 01 - rounding down (toward - infinity)
* 10 - rounding up (toward + infinity)
* 11 - rounding toward zero
*
* IC: Infinity control
* That is for 8087 and 80287 only.
*
* The hardware default is 0x037f. I choose 0x1372.
*/
#include <features.h>
/* masking of interrupts */
#define _FPU_MASK_IM 0x01
#define _FPU_MASK_DM 0x02
#define _FPU_MASK_ZM 0x04
#define _FPU_MASK_OM 0x08
#define _FPU_MASK_UM 0x10
#define _FPU_MASK_PM 0x20
/* precision control -- without effect on Alpha */
#define _FPU_EXTENDED 0x300 /* RECOMMENDED */
#define _FPU_DOUBLE 0x200
#define _FPU_SINGLE 0x0 /* DO NOT USE */
/*
* rounding control---notice that on the Alpha this affects only
* instructions with the dynamic rounding mode qualifier (/d).
*/
#define _FPU_RC_NEAREST 0x000 /* RECOMMENDED */
#define _FPU_RC_DOWN 0x400
#define _FPU_RC_UP 0x800
#define _FPU_RC_ZERO 0xC00
#define _FPU_RESERVED 0xF0C0 /* Reserved bits in cw */
/* Now two recommended cw */
/* Linux default:
- extended precision
- rounding to positive infinity. There is no /p instruction
qualifier. By setting the dynamic rounding mode to +infinity,
one can use /d to get round to +infinity with no extra overhead
(so long as the default isn't changed, of course...)
- no exceptions enabled. */
#define _FPU_DEFAULT 0x137f
/* IEEE: same as above. */
#define _FPU_IEEE 0x137f
/* Type of the control word. */
typedef unsigned int fpu_control_t;
/* Default control word set at startup. */
extern fpu_control_t __fpu_control;
#endif /* _ALPHA_FPU_CONTROL */