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authorRoland McGrath <roland@gnu.org>1995-10-16 01:37:51 +0000
committerRoland McGrath <roland@gnu.org>1995-10-16 01:37:51 +0000
commit8f5ca04bc7fd53741d80117df992995ace8f6d2d (patch)
treee39c13fc198b22ec55647259a8080051988e8c69 /sysdeps/unix
parent5d82cf5c55f56ae10d3b0a205d1fcc7de1cf56a0 (diff)
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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.
Diffstat (limited to 'sysdeps/unix')
-rw-r--r--sysdeps/unix/sysv/linux/Dist1
-rw-r--r--sysdeps/unix/sysv/linux/Makefile6
-rw-r--r--sysdeps/unix/sysv/linux/i386/sysdep.h76
-rw-r--r--sysdeps/unix/sysv/linux/local_lim.h17
-rw-r--r--sysdeps/unix/sysv/linux/nfs/nfs.h1
-rw-r--r--sysdeps/unix/sysv/linux/sys/param.h31
6 files changed, 80 insertions, 52 deletions
diff --git a/sysdeps/unix/sysv/linux/Dist b/sysdeps/unix/sysv/linux/Dist
index db5ff9596a..d6124bd2ba 100644
--- a/sysdeps/unix/sysv/linux/Dist
+++ b/sysdeps/unix/sysv/linux/Dist
@@ -1,2 +1,3 @@
sys/socketcall.h
sys/timex.h
+nfs/nfs.h
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
index 6e1dd8ccb2..fcacc53993 100644
--- a/sysdeps/unix/sysv/linux/Makefile
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -20,7 +20,11 @@ sysdep_routines := $(sysdep_routines) ipc
endif
ifeq ($(subdir), socket)
-headers += sys/socketcall.h
+headers += sys/socketcall.h
+endif
+
+ifeq ($(subdir), sunrpc)
+headers += nfs/nfs.h
endif
config-LDFLAGS = -Wl,-dynamic-linker=/lib/ld-gnu.so.1
diff --git a/sysdeps/unix/sysv/linux/i386/sysdep.h b/sysdeps/unix/sysv/linux/i386/sysdep.h
index 7fe4d414e3..a40ca86e40 100644
--- a/sysdeps/unix/sysv/linux/i386/sysdep.h
+++ b/sysdeps/unix/sysv/linux/i386/sysdep.h
@@ -93,43 +93,61 @@ Cambridge, MA 02139, USA. */
(2 * movl is less expensive than pushl + popl).
Second unlike for the other registers we don't save the content of
- %ecx and %edx when we have than 1 and 2 registers resp. */
+ %ecx and %edx when we have than 1 and 2 registers resp.
+
+ The code below might look a bit long but we have to take care for
+ the pipelined processors (i586 and up). Here the `pushl' and `popl'
+ instructions are marked as NP (not pairable) but the exception is
+ two consecutive of these instruction. This gives no penalty on
+ i386 and i486 processors though. */
#undef DO_CALL
#define DO_CALL(args) \
+ PUSHARGS_##args \
DOARGS_##args \
- int $0x80; \
- UNDOARGS_##args
+ int $0x80 \
+ POPARGS_##args
+#define PUSHARGS_0 /* No arguments to push. */
#define DOARGS_0 /* No arguments to frob. */
-#define UNDOARGS_0 /* No arguments to unfrob. */
-#define _DOARGS_0(n) /* No arguments to frob. */
-#define _UNDOARGS_0 /* No arguments to unfrob. */
-
-#define DOARGS_1 movl %ebx, %edx; movl 4(%esp), %ebx; DOARGS_0
-#define UNDOARGS_1 UNDOARGS_0; movl %edx, %ebx
-#define _DOARGS_1(n) pushl %ebx; movl n+4(%esp), %ebx; _DOARGS_0 (n)
-#define _UNDOARGS_1 _UNDOARGS_0; popl %ebx
-
-#define DOARGS_2 movl 8(%esp), %ecx; DOARGS_1
-#define UNDOARGS_2 UNDOARGS_1
+#define POPARGS_0 /* No arguments to pop. */
+#define _PUSHARGS_0 /* No arguments to push. */
+#define _DOARGS_0(n) /* No arguments to frob. */
+#define _POPARGS_0 /* No arguments to pop. */
+
+#define PUSHARGS_1 movl %ebx, %edx; PUSHARGS_0
+#define DOARGS_1 _DOARGS_1 (4)
+#define POPARGS_1 POPARGS_0; movl %edx, %ebx
+#define _PUSHARGS_1 pushl %ebx; _PUSHARGS_0
+#define _DOARGS_1(n) movl n(%esp), %ebx; _DOARGS_0(n-4)
+#define _POPARGS_1 _POPARGS_0; popl %ebx
+
+#define PUSHARGS_2 PUSHARGS_1
+#define DOARGS_2 _DOARGS_2 (8)
+#define POPARGS_2 POPARGS_1
+#define _PUSHARGS_2 _PUSHARGS_1
#define _DOARGS_2(n) movl n(%esp), %ecx; _DOARGS_1 (n-4)
-#define _UNDOARGS_2 _UNDOARGS_1
+#define _POPARGS_2 _POPARGS_1
-#define DOARGS_3 _DOARGS_3 (12)
-#define UNDOARGS_3 _UNDOARGS_3
+#define PUSHARGS_3 _PUSHARGS_2
+#define DOARGS_3 _DOARGS_3 (16)
+#define POPARGS_3 _POPARGS_3
+#define _PUSHARGS_3 _PUSHARGS_2
#define _DOARGS_3(n) movl n(%esp), %edx; _DOARGS_2 (n-4)
-#define _UNDOARGS_3 _UNDOARGS_2
-
-#define DOARGS_4 _DOARGS_4 (16)
-#define UNDOARGS_4 _UNDOARGS_4
-#define _DOARGS_4(n) pushl %esi; movl n+4(%esp), %esi; _DOARGS_3 (n)
-#define _UNDOARGS_4 _UNDOARGS_3; popl %esi
-
-#define DOARGS_5 _DOARGS_5 (20)
-#define UNDOARGS_5 _UNDOARGS_5
-#define _DOARGS_5(n) pushl %edi; movl n+4(%esp), %edi; _DOARGS_4 (n)
-#define _UNDOARGS_5 _UNDOARGS_4; popl %edi
-
+#define _POPARGS_3 _POPARGS_2
+
+#define PUSHARGS_4 _PUSHARGS_4
+#define DOARGS_4 _DOARGS_4 (24)
+#define POPARGS_4 _POPARGS_4
+#define _PUSHARGS_4 pushl %esi; _PUSHARGS_3
+#define _DOARGS_4(n) movl n(%esp), %esi; _DOARGS_3 (n-4)
+#define _POPARGS_4 _POPARGS_3; popl %esi
+
+#define PUSHARGS_5 _PUSHARGS_5
+#define DOARGS_5 _DOARGS_5 (32)
+#define POPARGS_5 _POPARGS_5
+#define _PUSHARGS_5 pushl %edi; _PUSHARGS_4
+#define _DOARGS_5(n) movl n(%esp), %edi; _DOARGS_4 (n-4)
+#define _POPARGS_5 _POPARGS_4; popl %edi
#endif /* ASSEMBLER */
diff --git a/sysdeps/unix/sysv/linux/local_lim.h b/sysdeps/unix/sysv/linux/local_lim.h
index bfc65bd6fd..a1c81d87d9 100644
--- a/sysdeps/unix/sysv/linux/local_lim.h
+++ b/sysdeps/unix/sysv/linux/local_lim.h
@@ -1,6 +1,6 @@
-/* Minimum guaranteed maximum values for system limits. Hurd version.
+/* Minimum guaranteed maximum values for system limits. Linux version.
-Copyright (C) 1993, 1994 Free Software Foundation, Inc.
+Copyright (C) 1993, 1994, 1995 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
@@ -18,14 +18,5 @@ License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
-/* Linux has a fixed limit of supplementary groups allocated with a
- process. This value is determined by the size of the `groups'
- member of the `task_struct' structure in <linux/sched.h>. */
-
-#define NGROUPS_MAX 32
-
-
-/* Maximum size of file names. Not all file system types support
- this size but it is only a maximum value. */
-
-#define NAME_MAX 255
+/* The kernel sources contain a file with all the needed information. */
+#include <linux/limits.h>
diff --git a/sysdeps/unix/sysv/linux/nfs/nfs.h b/sysdeps/unix/sysv/linux/nfs/nfs.h
new file mode 100644
index 0000000000..61e4b656d7
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/nfs/nfs.h
@@ -0,0 +1 @@
+#include <linux/nfs.h>
diff --git a/sysdeps/unix/sysv/linux/sys/param.h b/sysdeps/unix/sysv/linux/sys/param.h
index 652605e92a..a2d4984166 100644
--- a/sysdeps/unix/sysv/linux/sys/param.h
+++ b/sysdeps/unix/sysv/linux/sys/param.h
@@ -1,3 +1,21 @@
+/* Copyright (C) 1995 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 _SYS_PARAM_H
#define _SYS_PARAM_H
@@ -7,26 +25,21 @@
#include <sys/types.h>
-/* Don't change it. H.J. */
-#ifdef OLD_LINUX
-#undef MAXHOSTNAMELEN
-#define MAXHOSTNAMELEN 8 /* max length of hostname */
-#endif
#ifndef howmany
-#define howmany(x, y) (((x)+((y)-1))/(y))
+# define howmany(x, y) (((x)+((y)-1))/(y))
#endif
#ifndef roundup
-#define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
+# define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
#endif
#define MAXPATHLEN PATH_MAX
#define NOFILE OPEN_MAX
/* Following the information of some of the kernel people I here assume
- * that block size (i.e. the value of stat.st_blocks) for all filesystem
- * is 512 bytes. If not tell me or HJ. -- Uli */
+ that block size (i.e. the value of stat.st_blocks) for all filesystem
+ is 512 bytes. If not tell HJ, Roland, or me. -- drepper */
#define DEV_BSIZE 512
#endif