mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-20 09:41:18 +00:00
1ea89a402d
1997-10-13 03:14 Ulrich Drepper <drepper@cygnus.com>
* libc.map: Move _IO_fopen, fopen, _IO_stdin_, _IO_stdout_,
_IO_stderr_, _IO_list_all, and freopen to GLIBC_2.1 version.
* include/libc-symbol.h: Define define_symbol.
* libio/Makefile [$(versioning)=yes] (routines): Add oldiofopen and
oldfreopen.
[$(versioning)=yes] (aux): Add oldfileops and oldstdfiles.
* libio/fileops.c: Use _IO_FILE_complete when accessing _offset field.
* libio/freopen.c: Use versioning.
* libio/iofopen.c: Likewise. Generate object of type
_IO_FILE_complete.
* libio/iofopen64.c: Generate object of type _IO_FILE_complete.
* libio/iolibio.h: Declare _IO_{old,new}_fopen and __{old,new}_freopen.
Define _IO_old_freopen.
* libio/libio.h: Remove _offset field from _IO_FILE. Rename _unused2
field to _old_offset. Declare _IO_std*_ streams as of type
_IO_FILE_complete.
* libio/libioP.h: Define _IO_FILE_complete.
Declare callbacks for old fileops implementation.
* libio/stdfile.c: Define standard stream of type _IO_FILE_complete.
* libio/stdio.c: Correctly address FILE part of standard streams.
* libio/oldfileops.c: New file.
* libio/oldfreopen.c: New file.
* libio/oldiofopen.c: New file.
* libio/oldstdfiles.c: New file.
* sysdeps/i386/fpu/bits/mathinline.h: Define fma optimization.
* sysdeps/libm-i387/e_scalb.S: Make sure code gets into .text section.
* sysdeps/libm-i387/e_scalbl.S: Likewise.
* sysdeps/libm-i387/s_fma.S: Fix typo.
* sysdeps/libm-i387/s_fmaf.S: Likewise.
* sysdeps/libm-i387/s_fmal.S: Likewise.
1997-10-12 20:14 Zack Weinberg <zack@rabi.phys.columbia.edu>
* sysdeps/stub/getsid.c: Add a stub_warning.
* sysdeps/stub/mmap.c: Likewise.
* sysdeps/stub/munmap.c: Likewise.
* sysdeps/libm-ieee754/s_fma.c: New file.
* sysdeps/libm-ieee754/s_fmaf.c: New file.
* sysdeps/libm-ieee754/s_fmal.c: New file.
* sysdeps/libm-ieee754/s_llrintf.c: New file.
* sysdeps/libm-ieee754/s_llrintl.c: New file.
* sysdeps/libm-ieee754/s_lrintf.c: New file.
* sysdeps/libm-ieee754/s_lrintl.c: New file.
97 lines
1.5 KiB
ArmAsm
97 lines
1.5 KiB
ArmAsm
/*
|
|
* Written by J.T. Conklin <jtc@netbsd.org>.
|
|
* Public domain.
|
|
*
|
|
* Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>.
|
|
*
|
|
* Correct handling of y==-inf <drepper@gnu>
|
|
*/
|
|
|
|
#include <machine/asm.h>
|
|
|
|
RCSID("$NetBSD: $")
|
|
|
|
#ifdef __ELF__
|
|
.section .rodata
|
|
#else
|
|
.text
|
|
#endif
|
|
|
|
.align ALIGNARG(4)
|
|
ASM_TYPE_DIRECTIVE(zero_nan,@object)
|
|
zero_nan:
|
|
.double 0.0
|
|
nan: .byte 0, 0, 0, 0, 0, 0, 0xff, 0x7f
|
|
minus_zero:
|
|
.byte 0, 0, 0, 0, 0, 0, 0, 0x80
|
|
.byte 0, 0, 0, 0, 0, 0, 0xff, 0x7f
|
|
ASM_SIZE_DIRECTIVE(zero_nan)
|
|
|
|
|
|
#ifdef PIC
|
|
#define MO(op) op##@GOTOFF(%ecx)
|
|
#define MOX(op,x,f) op##@GOTOFF(%ecx,x,f)
|
|
#else
|
|
#define MO(op) op
|
|
#define MOX(op,x,f) op(,x,f)
|
|
#endif
|
|
|
|
.text
|
|
ENTRY(__ieee754_scalbl)
|
|
fldt 16(%esp)
|
|
fxam
|
|
fnstsw
|
|
fldt 4(%esp)
|
|
andl $0x4700, %eax
|
|
cmpl $0x0700, %eax
|
|
je 1f
|
|
andl $0x4500, %eax
|
|
cmpl $0x0100, %eax
|
|
je 2f
|
|
fxam
|
|
fnstsw
|
|
andl $0x4500, %eax
|
|
cmpl $0x0100, %eax
|
|
je 2f
|
|
fld %st(1)
|
|
frndint
|
|
fcomp %st(2)
|
|
fnstsw
|
|
sahf
|
|
jne 2f
|
|
fscale
|
|
fstp %st(1)
|
|
ret
|
|
|
|
/* y is -inf */
|
|
1: fxam
|
|
#ifdef PIC
|
|
call 1f
|
|
1: popl %ecx
|
|
addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ecx
|
|
#endif
|
|
fnstsw
|
|
movl 12(%esp), %edx
|
|
shrl $5, %eax
|
|
fstp %st(1)
|
|
andl $0x8000, %edx
|
|
andl $8, %eax
|
|
fstp %st(1)
|
|
shrl $11, %edx
|
|
addl %edx, %eax
|
|
fldl MOX(zero_nan, %eax, 1)
|
|
ret
|
|
|
|
/* The result is NaN, but we must not raise an exception.
|
|
So use a variable. */
|
|
2: fstp %st
|
|
fstp %st
|
|
#ifdef PIC
|
|
call 1f
|
|
1: popl %ecx
|
|
addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ecx
|
|
#endif
|
|
fldl MO(nan)
|
|
ret
|
|
END(__ieee754_scalbl)
|