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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.
95 lines
1.5 KiB
ArmAsm
95 lines
1.5 KiB
ArmAsm
/*
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* Written by J.T. Conklin <jtc@netbsd.org>.
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* Public domain.
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*
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* Correct handling of y==-inf <drepper@gnu>
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*/
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#include <machine/asm.h>
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RCSID("$NetBSD: e_scalb.S,v 1.4 1995/05/08 23:49:52 jtc Exp $")
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#ifdef __ELF__
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.section .rodata
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#else
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.text
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#endif
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.align ALIGNARG(4)
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ASM_TYPE_DIRECTIVE(zero_nan,@object)
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zero_nan:
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.double 0.0
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nan: .byte 0, 0, 0, 0, 0, 0, 0xff, 0x7f
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minus_zero:
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.byte 0, 0, 0, 0, 0, 0, 0, 0x80
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.byte 0, 0, 0, 0, 0, 0, 0xff, 0x7f
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ASM_SIZE_DIRECTIVE(zero_nan)
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#ifdef PIC
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#define MO(op) op##@GOTOFF(%ecx)
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#define MOX(op,x,f) op##@GOTOFF(%ecx,x,f)
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#else
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#define MO(op) op
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#define MOX(op,x,f) op(,x,f)
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#endif
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.text
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ENTRY(__ieee754_scalb)
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fldl 12(%esp)
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fxam
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fnstsw
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fldl 4(%esp)
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andl $0x4700, %eax
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cmpl $0x0700, %eax
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je 1f
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andl $0x4500, %eax
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cmpl $0x0100, %eax
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je 2f
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fxam
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fnstsw
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andl $0x4500, %eax
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cmpl $0x0100, %eax
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je 2f
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fld %st(1)
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frndint
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fcomp %st(2)
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fnstsw
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sahf
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jne 2f
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fscale
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fstp %st(1)
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ret
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/* y is -inf */
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1: fxam
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#ifdef PIC
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call 1f
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1: popl %ecx
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addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ecx
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#endif
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fnstsw
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movl 8(%esp), %edx
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shrl $5, %eax
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fstp %st(1)
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andl $0x80000000, %edx
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andl $8, %eax
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fstp %st(1)
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shrl $27, %edx
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addl %edx, %eax
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fldl MOX(zero_nan, %eax, 1)
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ret
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/* The result is NaN, but we must not raise an exception.
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So use a variable. */
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2: fstp %st
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fstp %st
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#ifdef PIC
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call 1f
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1: popl %ecx
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addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ecx
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#endif
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fldl MO(nan)
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ret
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END(__ieee754_scalb)
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