glibc/sysdeps/i386/i586/memcpy.S
Ulrich Drepper fee732e531 * intl/Makefile (tst-gettext[45].out): Pass also $(run-program-prefix)
as argument to the scripts.
	* intl/tst-gettext2.sh: Use mkdir -p instead of test -d + mkdir.
	* intl/tst-gettext4.sh: Likewise.  Use run_program_prefix argument.
	* intl/tst-gettext5.sh: Likewise.

	* intl/tst-translit.sh: Add mkdir -p.

	* sysdeps/unix/sysv/linux/i386/sysdep.h (SETUP_PIC_REG): Use
	.ifndef/.endif to allow use of this macro more than once per .S
	file.
	(LOAD_PIC_REG): New macro.
	* sysdeps/unix/sysv/linux/i386/makecontext.S: Add call frame
	information.
	* sysdeps/unix/sysv/linux/i386/getcontext.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/vfork.S: Likewise.
	* sysdeps/i386/fpu/s_asinh.S: Use LOAD_PIC_REG macro.  Add call frame
	information.
	* sysdeps/i386/fpu/e_log10f.S: Likewise.
	* sysdeps/i386/fpu/s_expm1.S: Likewise.
	* sysdeps/i386/fpu/e_acoshf.S: Likewise.
	* sysdeps/i386/fpu/e_log2l.S: Likewise.
	* sysdeps/i386/fpu/s_log1pf.S: Likewise.
	* sysdeps/i386/fpu/s_lrint.S: Likewise.
	* sysdeps/i386/fpu/s_llrint.S: Likewise.
	* sysdeps/i386/fpu/s_ilogbf.S: Likewise.
	* sysdeps/i386/fpu/s_cbrtl.S: Likewise.
	* sysdeps/i386/fpu/s_asinhf.S: Likewise.
	* sysdeps/i386/fpu/e_log.S: Likewise.
	* sysdeps/i386/fpu/e_atanhf.S: Likewise.
	* sysdeps/i386/fpu/s_lrintl.S: Likewise.
	* sysdeps/i386/fpu/e_atanhl.S: Likewise.
	* sysdeps/i386/fpu/e_scalb.S: Likewise.
	* sysdeps/i386/fpu/s_log1p.S: Likewise.
	* sysdeps/i386/fpu/s_nearbyintl.S: Likewise.
	* sysdeps/i386/fpu/s_frexpl.S: Likewise.
	* sysdeps/i386/fpu/s_log1pl.S: Likewise.
	* sysdeps/i386/fpu/s_nearbyintf.S: Likewise.
	* sysdeps/i386/fpu/s_cbrt.S: Likewise.
	* sysdeps/i386/fpu/s_expm1l.S: Likewise.
	* sysdeps/i386/fpu/s_lrintf.S: Likewise.
	* sysdeps/i386/fpu/e_acosh.S: Likewise.
	* sysdeps/i386/fpu/s_cexp.S: Likewise.
	* sysdeps/i386/fpu/s_ilogbl.S: Likewise.
	* sysdeps/i386/fpu/s_expm1f.S: Likewise.
	* sysdeps/i386/fpu/e_powl.S: Likewise.
	* sysdeps/i386/fpu/e_powf.S: Likewise.
	* sysdeps/i386/fpu/e_scalbf.S: Likewise.
	* sysdeps/i386/fpu/e_logl.S: Likewise.
	* sysdeps/i386/fpu/e_acoshl.S: Likewise.
	* sysdeps/i386/fpu/s_frexp.S: Likewise.
	* sysdeps/i386/fpu/e_pow.S: Likewise.
	* sysdeps/i386/fpu/e_logf.S: Likewise.
	* sysdeps/i386/fpu/e_log2.S: Likewise.
	* sysdeps/i386/fpu/s_frexpf.S: Likewise.
	* sysdeps/i386/fpu/s_cexpl.S: Likewise.
	* sysdeps/i386/fpu/s_llrintf.S: Likewise.
	* sysdeps/i386/fpu/s_ilogb.S: Likewise.
	* sysdeps/i386/fpu/e_scalbl.S: Likewise.
	* sysdeps/i386/fpu/e_atanh.S: Likewise.
	* sysdeps/i386/fpu/e_log10.S: Likewise.
	* sysdeps/i386/fpu/s_cbrtf.S: Likewise.
	* sysdeps/i386/fpu/s_cexpf.S: Likewise.
	* sysdeps/i386/fpu/s_llrintl.S: Likewise.
	* sysdeps/i386/fpu/e_log10l.S: Likewise.
	* sysdeps/i386/fpu/s_nearbyint.S: Likewise.
	* sysdeps/i386/fpu/s_asinhl.S: Likewise.
	* sysdeps/i386/fpu/e_log2f.S: Likewise.
	* sysdeps/i386/addmul_1.S: Various fixes to cfi handling.
	* sysdeps/i386/mul_1.S: Likewise.
	* sysdeps/i386/strtok.S: Likewise.
	* sysdeps/i386/sub_n.S: Likewise.
	* sysdeps/i386/submul_1.S: Likewise.
	* sysdeps/i386/i586/addmul_1.S: Likewise.
	* sysdeps/i386/i586/memcpy.S: Likewise.
	* sysdeps/i386/i586/mul_1.S: Likewise.
	* sysdeps/i386/i586/rshift.S: Likewise.
	* sysdeps/i386/i586/sub_n.S: Likewise.
	* sysdeps/i386/i586/submul_1.S: Likewise.
	* sysdeps/i386/i686/memcmp.S: Likewise.
	* sysdeps/i386/i686/memmove.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/mmap.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/mmap64.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/setcontext.S: Likewise.
2005-05-04 17:58:13 +00:00

130 lines
3.0 KiB
ArmAsm

/* Highly optimized version for i586.
Copyright (C) 1997, 2000, 2003, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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>
#include "asm-syntax.h"
#include "bp-sym.h"
#include "bp-asm.h"
/* BEWARE: `#ifdef memcpy' means that memcpy is redefined as `mempcpy',
and the return value is the byte after the last one copied in
the destination. */
#define MEMPCPY_P (defined memcpy)
#define PARMS LINKAGE+8 /* space for 2 saved regs */
#define RTN PARMS
#define DEST RTN+RTN_SIZE
#define SRC DEST+PTR_SIZE
#define LEN SRC+PTR_SIZE
.text
ENTRY (BP_SYM (memcpy))
ENTER
pushl %edi
cfi_adjust_cfa_offset (4)
pushl %esi
cfi_adjust_cfa_offset (4)
movl DEST(%esp), %edi
cfi_rel_offset (edi, 4)
movl SRC(%esp), %esi
cfi_rel_offset (esi, 0)
movl LEN(%esp), %ecx
CHECK_BOUNDS_BOTH_WIDE (%edi, DEST(%esp), %ecx)
CHECK_BOUNDS_BOTH_WIDE (%esi, SRC(%esp), %ecx)
movl %edi, %eax
/* We need this in any case. */
cld
/* Cutoff for the big loop is a size of 32 bytes since otherwise
the loop will never be entered. */
cmpl $32, %ecx
jbe L(1)
negl %eax
andl $3, %eax
subl %eax, %ecx
xchgl %eax, %ecx
rep; movsb
movl %eax, %ecx
subl $32, %ecx
js L(2)
/* Read ahead to make sure we write in the cache since the stupid
i586 designers haven't implemented read-on-write-miss. */
movl (%edi), %eax
L(3): movl 28(%edi), %edx
/* Now correct the loop counter. Please note that in the following
code the flags are not changed anymore. */
subl $32, %ecx
movl (%esi), %eax
movl 4(%esi), %edx
movl %eax, (%edi)
movl %edx, 4(%edi)
movl 8(%esi), %eax
movl 12(%esi), %edx
movl %eax, 8(%edi)
movl %edx, 12(%edi)
movl 16(%esi), %eax
movl 20(%esi), %edx
movl %eax, 16(%edi)
movl %edx, 20(%edi)
movl 24(%esi), %eax
movl 28(%esi), %edx
movl %eax, 24(%edi)
movl %edx, 28(%edi)
leal 32(%esi), %esi
leal 32(%edi), %edi
jns L(3)
/* Correct extra loop counter modification. */
L(2): addl $32, %ecx
#if !MEMPCPY_P
movl DEST(%esp), %eax
#endif
L(1): rep; movsb
#if MEMPCPY_P
movl %edi, %eax
#endif
popl %esi
cfi_adjust_cfa_offset (-4)
cfi_restore (esi)
popl %edi
cfi_adjust_cfa_offset (-4)
cfi_restore (edi)
LEAVE
RET_PTR
END (BP_SYM (memcpy))
#if !MEMPCPY_P
libc_hidden_builtin_def (memcpy)
#endif