mirror of
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Sat Oct 14 02:52:36 1995 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>
* malloc/malloc.c (_malloc_internal): Performance fix. Move
if statement out of loop.
* stdio/_itoa.c, stdio/_itoa.h: Complete rewrite. Much faster
implementation using GMP functions. Contributed by
Torbjorn Granlund and Ulrich Drepper.
* stdio/test_rdwr.c: Include <errno.h>.
* sysdeps/i386/i586/Implies: New file.
New highly optimized string functions for i[345]86.
* sysdeps/i386/memchr.S, sysdeps/i386/memcmp.S: New files.
* sysdeps/i386/stpcpy.S, sysdeps/i386/stpncpy.S: New files.
* sysdeps/i386/strchr.S, sysdeps/i386/strcspn.S: New files.
* sysdeps/i386/strpbrk.S, sysdeps/i386/strrchr.S: New files.
* sysdeps/i386/strspn.S, sysdeps/i386/i486/strcat.S: New files.
* sysdeps/i386/i486/strlen.S, sysdeps/i386/i586/strchr.S: New files.
* sysdeps/i386/i586/strlen.S: New file.
* sysdeps/i386/memchr.c: Removed. There is now an assembler version.
* sysdeps/i386/i586/memcopy.h (WORD_COPY_BWD): Parameters did
not correspond to used values.
* sysdeps/unix/sysv/linux/nfs/nfs.h: New file. Simply a wrapper
around a kernel header file.
* sysdeps/unix/sysv/linux/Dist: Add it.
* sysdeps/unix/sysv/linux/Makefile [$(subdir)=sunrpc] (headers):
Likewise.
* sysdeps/unix/sysv/linux/local_lim.h: Rewrite. Instead of
defining ourself we use a kernel header file.
* sysdeps/unix/sysv/linux/i386/sysdep.h (DO_CALL): Optimize system
call handler for i586.
* sysdeps/unix/sysv/linux/sys/param.h: Add copyright and clean up.
Sat Oct 14 02:52:36 1995 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>
* malloc/malloc.c (_malloc_internal): Performance fix. Move
if statement out of loop.
* stdio/_itoa.c, stdio/_itoa.h: Complete rewrite. Much faster
implementation using GMP functions. Contributed by
Torbjorn Granlund and Ulrich Drepper.
* stdio/test_rdwr.c: Include <errno.h>.
* sysdeps/i386/i586/Implies: New file.
New highly optimized string functions for i[345]86.
* sysdeps/i386/memchr.S, sysdeps/i386/memcmp.S: New files.
* sysdeps/i386/stpcpy.S, sysdeps/i386/stpncpy.S: New files.
* sysdeps/i386/strchr.S, sysdeps/i386/strcspn.S: New files.
* sysdeps/i386/strpbrk.S, sysdeps/i386/strrchr.S: New files.
* sysdeps/i386/strspn.S, sysdeps/i386/i486/strcat.S: New files.
* sysdeps/i386/i486/strlen.S, sysdeps/i386/i586/strchr.S: New files.
* sysdeps/i386/i586/strlen.S: New file.
* sysdeps/i386/memchr.c: Removed. There is now an assembler version.
* sysdeps/i386/i586/memcopy.h (WORD_COPY_BWD): Parameters did
not correspond to used values.
* sysdeps/unix/sysv/linux/nfs/nfs.h: New file. Simply a wrapper
around a kernel header file.
* sysdeps/unix/sysv/linux/Dist: Add it.
* sysdeps/unix/sysv/linux/Makefile [$(subdir)=sunrpc] (headers):
Likewise.
* sysdeps/unix/sysv/linux/local_lim.h: Rewrite. Instead of
defining ourself we use a kernel header file.
* sysdeps/unix/sysv/linux/i386/sysdep.h (DO_CALL): Optimize system
call handler for i586.
* sysdeps/unix/sysv/linux/sys/param.h: Add copyright and clean up.
This commit is contained in:
Roland McGrath
@@ -1,2 +1,3 @@
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sys/socketcall.h
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sys/timex.h
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nfs/nfs.h
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@@ -20,7 +20,11 @@ sysdep_routines := $(sysdep_routines) ipc
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endif
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ifeq ($(subdir), socket)
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headers += sys/socketcall.h
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headers += sys/socketcall.h
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endif
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ifeq ($(subdir), sunrpc)
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headers += nfs/nfs.h
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endif
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config-LDFLAGS = -Wl,-dynamic-linker=/lib/ld-gnu.so.1
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@@ -93,43 +93,61 @@ Cambridge, MA 02139, USA. */
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(2 * movl is less expensive than pushl + popl).
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Second unlike for the other registers we don't save the content of
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%ecx and %edx when we have than 1 and 2 registers resp. */
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%ecx and %edx when we have than 1 and 2 registers resp.
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The code below might look a bit long but we have to take care for
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the pipelined processors (i586 and up). Here the `pushl' and `popl'
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instructions are marked as NP (not pairable) but the exception is
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two consecutive of these instruction. This gives no penalty on
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i386 and i486 processors though. */
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#undef DO_CALL
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#define DO_CALL(args) \
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PUSHARGS_##args \
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DOARGS_##args \
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int $0x80; \
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UNDOARGS_##args
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int $0x80 \
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POPARGS_##args
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#define PUSHARGS_0 /* No arguments to push. */
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#define DOARGS_0 /* No arguments to frob. */
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#define UNDOARGS_0 /* No arguments to unfrob. */
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#define _DOARGS_0(n) /* No arguments to frob. */
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#define _UNDOARGS_0 /* No arguments to unfrob. */
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#define POPARGS_0 /* No arguments to pop. */
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#define _PUSHARGS_0 /* No arguments to push. */
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#define _DOARGS_0(n) /* No arguments to frob. */
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#define _POPARGS_0 /* No arguments to pop. */
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#define DOARGS_1 movl %ebx, %edx; movl 4(%esp), %ebx; DOARGS_0
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#define UNDOARGS_1 UNDOARGS_0; movl %edx, %ebx
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#define _DOARGS_1(n) pushl %ebx; movl n+4(%esp), %ebx; _DOARGS_0 (n)
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#define _UNDOARGS_1 _UNDOARGS_0; popl %ebx
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#define PUSHARGS_1 movl %ebx, %edx; PUSHARGS_0
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#define DOARGS_1 _DOARGS_1 (4)
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#define POPARGS_1 POPARGS_0; movl %edx, %ebx
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#define _PUSHARGS_1 pushl %ebx; _PUSHARGS_0
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#define _DOARGS_1(n) movl n(%esp), %ebx; _DOARGS_0(n-4)
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#define _POPARGS_1 _POPARGS_0; popl %ebx
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#define DOARGS_2 movl 8(%esp), %ecx; DOARGS_1
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#define UNDOARGS_2 UNDOARGS_1
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#define PUSHARGS_2 PUSHARGS_1
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#define DOARGS_2 _DOARGS_2 (8)
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#define POPARGS_2 POPARGS_1
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#define _PUSHARGS_2 _PUSHARGS_1
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#define _DOARGS_2(n) movl n(%esp), %ecx; _DOARGS_1 (n-4)
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#define _UNDOARGS_2 _UNDOARGS_1
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#define _POPARGS_2 _POPARGS_1
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#define DOARGS_3 _DOARGS_3 (12)
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#define UNDOARGS_3 _UNDOARGS_3
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#define PUSHARGS_3 _PUSHARGS_2
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#define DOARGS_3 _DOARGS_3 (16)
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#define POPARGS_3 _POPARGS_3
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#define _PUSHARGS_3 _PUSHARGS_2
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#define _DOARGS_3(n) movl n(%esp), %edx; _DOARGS_2 (n-4)
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#define _UNDOARGS_3 _UNDOARGS_2
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#define _POPARGS_3 _POPARGS_2
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#define DOARGS_4 _DOARGS_4 (16)
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#define UNDOARGS_4 _UNDOARGS_4
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#define _DOARGS_4(n) pushl %esi; movl n+4(%esp), %esi; _DOARGS_3 (n)
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#define _UNDOARGS_4 _UNDOARGS_3; popl %esi
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#define DOARGS_5 _DOARGS_5 (20)
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#define UNDOARGS_5 _UNDOARGS_5
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#define _DOARGS_5(n) pushl %edi; movl n+4(%esp), %edi; _DOARGS_4 (n)
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#define _UNDOARGS_5 _UNDOARGS_4; popl %edi
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#define PUSHARGS_4 _PUSHARGS_4
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#define DOARGS_4 _DOARGS_4 (24)
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#define POPARGS_4 _POPARGS_4
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#define _PUSHARGS_4 pushl %esi; _PUSHARGS_3
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#define _DOARGS_4(n) movl n(%esp), %esi; _DOARGS_3 (n-4)
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#define _POPARGS_4 _POPARGS_3; popl %esi
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#define PUSHARGS_5 _PUSHARGS_5
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#define DOARGS_5 _DOARGS_5 (32)
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#define POPARGS_5 _POPARGS_5
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#define _PUSHARGS_5 pushl %edi; _PUSHARGS_4
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#define _DOARGS_5(n) movl n(%esp), %edi; _DOARGS_4 (n-4)
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#define _POPARGS_5 _POPARGS_4; popl %edi
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#endif /* ASSEMBLER */
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@@ -1,6 +1,6 @@
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/* Minimum guaranteed maximum values for system limits. Hurd version.
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/* Minimum guaranteed maximum values for system limits. Linux version.
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Copyright (C) 1993, 1994 Free Software Foundation, Inc.
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Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@@ -18,14 +18,5 @@ License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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/* Linux has a fixed limit of supplementary groups allocated with a
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process. This value is determined by the size of the `groups'
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member of the `task_struct' structure in <linux/sched.h>. */
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#define NGROUPS_MAX 32
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/* Maximum size of file names. Not all file system types support
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this size but it is only a maximum value. */
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#define NAME_MAX 255
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/* The kernel sources contain a file with all the needed information. */
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#include <linux/limits.h>
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1
sysdeps/unix/sysv/linux/nfs/nfs.h
Normal file
1
sysdeps/unix/sysv/linux/nfs/nfs.h
Normal file
@@ -0,0 +1 @@
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#include <linux/nfs.h>
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@@ -1,3 +1,21 @@
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/* Copyright (C) 1995 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef _SYS_PARAM_H
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#define _SYS_PARAM_H
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@@ -7,26 +25,21 @@
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#include <sys/types.h>
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/* Don't change it. H.J. */
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#ifdef OLD_LINUX
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#undef MAXHOSTNAMELEN
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#define MAXHOSTNAMELEN 8 /* max length of hostname */
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#endif
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#ifndef howmany
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#define howmany(x, y) (((x)+((y)-1))/(y))
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# define howmany(x, y) (((x)+((y)-1))/(y))
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#endif
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#ifndef roundup
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#define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
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# define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
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#endif
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#define MAXPATHLEN PATH_MAX
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#define NOFILE OPEN_MAX
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/* Following the information of some of the kernel people I here assume
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* that block size (i.e. the value of stat.st_blocks) for all filesystem
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* is 512 bytes. If not tell me or HJ. -- Uli */
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that block size (i.e. the value of stat.st_blocks) for all filesystem
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is 512 bytes. If not tell HJ, Roland, or me. -- drepper */
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#define DEV_BSIZE 512
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#endif
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