glibc/sysdeps/sparc/sparc32/ieee754.h

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Update. 2000-09-26 Jakub Jelinek <jakub@redhat.com> * sysdeps/sparc/sparc32/bits/endian.h: Remove. * sysdeps/sparc/sparc32/ieee754.h: New. * sysdeps/sparc/sparc64/bits/endian.h: Move... * sysdeps/sparc/bits/endian.h: ...here. * sysdeps/unix/sysv/linux/sparc/sparc32/clone.S (__clone): Optimize. * sysdeps/unix/sysv/linux/sparc/sparc64/clone.S (__clone): Check %o1, not %o0 to see if we're parent or child. Optimize. 2000-09-26 Jes Sorensen <jes@linuxcare.com> * sysdeps/unix/sysv/linux/ia64/fork.S: New file (based on code by Hans Boehm). * sysdeps/unix/sysv/linux/ia64/vfork.S: New file (based on code by Hans Boehm). * sysdeps/unix/sysv/linux/ia64/fork.c: Deleted (obsoleted by fork.S). 2000-09-20 H.J. Lu <hjl@gnu.org> * sysdeps/ia64/fpu/printf_fphex.c: New file. * sysdeps/ia64/fpu/libm-test-ulps: New file. 2000-09-17 H.J. Lu <hjl@gnu.org> * sysdeps/ia64/Makefile (long-double-fcts): New. Defined as yes. * sysdeps/ia64/fpu/s_isinfl.c: New file. Include sysdeps/i386/fpu/s_isinfl.c. * sysdeps/ia64/fpu/s_isnanl.c: New file. Include sysdeps/i386/fpu/s_isnanl.c. * sysdeps/ia64/fpu/s_nextafterl.c: New file. Include sysdeps/i386/fpu/s_nextafterl.c. * sysdeps/ia64/fpu/bits/mathdef.h: New file. Copied from sysdeps/i386/fpu/bits/mathdef.h. 2000-09-16 H.J. Lu <hjl@gnu.org> * sysdeps/generic/ldsodefs.h (DL_UNMAP): New. Defined if DL_UNMAP_IS_SPECIAL is not defined. * sysdeps/ia64/dl-lookupcfg.h (DL_UNMAP_IS_SPECIAL): Defined. (_dl_unmap): New prototype. (DL_UNMAP): New. Defined as _dl_unmap. * sysdeps/ia64/Versions [ld] (GLIBC_2.2): Add _dl_unmap. * elf/dl-close.c (_dl_close): Replace __munmap with DL_UNMAP. 2000-09-16 H.J. Lu <hjl@gnu.org> * sysdeps/generic/ldsodefs.h (DL_LOOKUP_ADDRESS): New. Defined if ELF_FUNCTION_PTR_IS_SPECIAL is not defined. * sysdeps/ia64/dl-lookupcfg.h (_dl_lookup_address): New prototype. (DL_LOOKUP_ADDRESS): New. Defined as _dl_lookup_address. * sysdeps/ia64/dl-fptr.c (_dl_lookup_address): New. Lookup the memory location of a function from a function descriptor. * sysdeps/ia64/Versions [ld] (GLIBC_2.2): Add _dl_lookup_address. * elf/dl-addr.c (_dl_addr): Use DL_LOOKUP_ADDRESS to get the memory location. 2000-09-14 Jes Sorensen <jes@linuxcare.com> * sysdeps/ia64/bits/byteswap.h (__bswap_16): Don't mark output variable as input argument. (__bswap_32): Likewise. * sysdeps/ia64/dl-machine.h: Add missing stop bit in RTLD_START() - found by Jim Wilson <wilson@cygnus.com> 2000-09-26 Ulrich Drepper <drepper@redhat.com> * string/strxfrm.c: Only require alignment on __alignof__ (int32_t) instead of 4. 2000-09-26 Andreas Schwab <schwab@suse.de> * locale/programs/ld-collate.c (collate_output): Only require alignment on __alignof__ (int32_t) instead of 4. * locale/loadlocale.c (_nl_load_locale): Likewise. * string/strcoll.c: Likewise. 2000-09-26 Jes Sorensen <jes@linuxcare.com> * sysdeps/ieee754/ldbl-96/e_atan2l.c (__ieee754_atan2l): Add parentheses around arithmetic used in | statement to kill compiler warning. * math/math_private.h: Add prototype for __finitel. (__ilogbl): Likewise. (__isinfl): Likewise. (__isnanl): Likewise. (__atanl): Likewise. (__copysignl): Likewise. (__expm1l): Likewise. (__floorl): Likewise. (__frexpl): Likewise. (__ldexpl): Likewise. (__log1pl): Likewise. (__nanl): Likewise. (__rintl): Likewise. (__scalbnl): Likewise. (__sqrtl): Likewise. (fabsl): Likewise. (__sincosl): Likewise. (si_isr) [USE_GNU]: Likewise. (ILL_BREAK) [USE_GNU]: Likewise. (FPE_DECOVF) [USE_GNU]: Likewise. (FPE_DECDIV) [USE_GNU]: Likewise. (FPE_DECERR) [USE_GNU]: Likewise. (FPE_INVASC) [USE_GNU]: Likewise. (FPE_INVDEC) [USE_GNU]: Likewise. (TRAP_BRANCH) [USE_GNU]: Likewise. (TRAP_HWBKPT) [USE_GNU]: Likewise. * sysdeps/ieee754/flt-32/s_exp2f.c: Likewise.
2000-09-26 21:13:37 +02:00
/* Copyright (C) 1992, 1995, 1996, 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _IEEE754_H
#define _IEEE754_H 1
#include <features.h>
#include <endian.h>
__BEGIN_DECLS
union ieee754_float
{
float f;
/* This is the IEEE 754 single-precision format. */
struct
{
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned int negative:1;
unsigned int exponent:8;
unsigned int mantissa:23;
#endif /* Big endian. */
#if __BYTE_ORDER == __LITTLE_ENDIAN
unsigned int mantissa:23;
unsigned int exponent:8;
unsigned int negative:1;
#endif /* Little endian. */
} ieee;
/* This format makes it easier to see if a NaN is a signalling NaN. */
struct
{
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned int negative:1;
unsigned int exponent:8;
unsigned int quiet_nan:1;
unsigned int mantissa:22;
#endif /* Big endian. */
#if __BYTE_ORDER == __LITTLE_ENDIAN
unsigned int mantissa:22;
unsigned int quiet_nan:1;
unsigned int exponent:8;
unsigned int negative:1;
#endif /* Little endian. */
} ieee_nan;
};
#define IEEE754_FLOAT_BIAS 0x7f /* Added to exponent. */
union ieee754_double
{
double d;
/* This is the IEEE 754 double-precision format. */
struct
{
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned int negative:1;
unsigned int exponent:11;
/* Together these comprise the mantissa. */
unsigned int mantissa0:20;
unsigned int mantissa1:32;
#endif /* Big endian. */
#if __BYTE_ORDER == __LITTLE_ENDIAN
/* Together these comprise the mantissa. */
unsigned int mantissa1:32;
unsigned int mantissa0:20;
unsigned int exponent:11;
unsigned int negative:1;
#endif /* Little endian. */
} ieee;
/* This format makes it easier to see if a NaN is a signalling NaN. */
struct
{
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned int negative:1;
unsigned int exponent:11;
unsigned int quiet_nan:1;
/* Together these comprise the mantissa. */
unsigned int mantissa0:19;
unsigned int mantissa1:32;
#else
/* Together these comprise the mantissa. */
unsigned int mantissa1:32;
unsigned int mantissa0:19;
unsigned int quiet_nan:1;
unsigned int exponent:11;
unsigned int negative:1;
#endif
} ieee_nan;
};
#define IEEE754_DOUBLE_BIAS 0x3ff /* Added to exponent. */
union ieee854_long_double
{
long double d;
/* This is the IEEE 854 quad-precision format. */
struct
{
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned int negative:1;
unsigned int exponent:15;
/* Together these comprise the mantissa. */
unsigned int mantissa0:16;
unsigned int mantissa1:32;
unsigned int mantissa2:32;
unsigned int mantissa3:32;
#endif /* Big endian. */
#if __BYTE_ORDER == __LITTLE_ENDIAN
/* Together these comprise the mantissa. */
unsigned int mantissa3:32;
unsigned int mantissa2:32;
unsigned int mantissa1:32;
unsigned int mantissa0:16;
unsigned int exponent:15;
unsigned int negative:1;
#endif /* Little endian. */
} ieee;
/* This format makes it easier to see if a NaN is a signalling NaN. */
struct
{
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned int negative:1;
unsigned int exponent:15;
unsigned int quiet_nan:1;
/* Together these comprise the mantissa. */
unsigned int mantissa0:15;
unsigned int mantissa1:32;
unsigned int mantissa2:32;
unsigned int mantissa3:32;
#else
/* Together these comprise the mantissa. */
unsigned int mantissa3:32;
unsigned int mantissa2:32;
unsigned int mantissa1:32;
unsigned int mantissa0:15;
unsigned int quiet_nan:1;
unsigned int exponent:15;
unsigned int negative:1;
#endif
} ieee_nan;
};
#define IEEE854_LONG_DOUBLE_BIAS 0x3fff /* Added to exponent. */
__END_DECLS
#endif /* ieee754.h */