lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-07-29 11:41:21 +03:00
Code Activity

Update.

Browse Source 
* sysdeps/unix/sysv/linux/sys/sysmacros.h: Adjust for larger
	kernel dev_t size.
	* sysdeps/unix/sysv/linux/makedev.c: New file.
	* sysdeps/unix/sysv/linux/Dist: Add makedev.c.
	* sysdeps/unix/sysv/linux/Makefile [subdir=misc]
	(sysdep_routines): Add makedev.
	* sysdeps/unix/sysv/linux/Versions [libc] (GLIBC_2.3.3): Add
	major, minor, makedev.

2003-09-23  Ulrich Drepper  <drepper@redhat.com>
This commit is contained in:
Ulrich Drepper
2003-09-24 05:05:38 +00:00
parent 54ee14b388
commit 9a276f8e1e
6 changed files with 95 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

41
sysdeps/unix/sysv/linux/makedev.c Normal file
View File

@ -0,0 +1,41 @@
/* Definitions of functions to access `dev_t' values.
Copyright (C) 2003 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 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 <endian.h>
#include <sys/sysmacros.h>
unsigned int
major (unsigned long long int dev)
{
return ((dev >> 8) & 0xfff) | ((unsigned int) (dev >> 32) & ~0xfff);
}
unsigned int
minor (unsigned long long int dev)
{
return (dev & 0xff) | ((unsigned int) (dev >> 12) & ~0xff);
}
unsigned long long int
makedev (unsigned int major, unsigned int minor)
{
return ((minor & 0xff) | ((major & 0xfff) << 8)
| (((unsigned long long int) (minor & ~0xff)) << 12)
| (((unsigned long long int) (major & ~0xfff)) << 32));
}