[uClibc-cvs] uClibc/libc/sysdeps/linux/sparc/bits kernel_stat.h,1.2,1.3

[Erik Andersen]

Update of /var/cvs/uClibc/libc/sysdeps/linux/sparc/bits
In directory winder:/tmp/cvs-serv18234/libc/sysdeps/linux/sparc/bits

Modified Files:
	kernel_stat.h 
Log Message:
Ok, people are probably going to hate me for this...  This commit changes the
type of 'struct stat' and 'struct stat64' so they use consistant types.  

This change is the result of a bug I found while trying to use GNU tar.  The
problem was caused by our using kernel types within struct stat and trying to
directly compare these values with standard types.  Trying an 'if (a < b)' when
'a' is an 'unsigned long' and 'b' is an 'int' leads to very different results
then when comparing entities of the same type (i.e. time_t values)....
Grumble.  Nasty stuff, but I'm glad I got this out of the way now.

As a result of this fix, uClibc 0.9.17 will not be binary compatible with
earlier releases.  I have always warned people this can and will happen.
 -Erik


Index: kernel_stat.h
===================================================================
RCS file: /var/cvs/uClibc/libc/sysdeps/linux/sparc/bits/kernel_stat.h,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -d -r1.2 -r1.3
--- kernel_stat.h	25 Aug 2002 00:22:15 -0000	1.2
+++ kernel_stat.h	24 Jan 2003 11:44:13 -0000	1.3
@@ -2,81 +2,12 @@
 #define _BITS_STAT_STRUCT_H
 
 /* This file provides whatever this particular arch's kernel thinks 
- * struct stat should look like...  It turns out each arch has a 
+ * struct kernel_stat should look like...  It turns out each arch has a 
  * different opinion on the subject... */
 #if __WORDSIZE == 64
-struct stat {
-	unsigned char	__pad0[6];
-	unsigned short	st_dev;
-	unsigned long long	st_ino;
-	unsigned int	st_mode;
-	unsigned int	st_nlink;
-	unsigned int	st_uid;
-	unsigned int	st_gid;
-	unsigned char	__pad2[6];
-	unsigned short	st_rdev;
-	unsigned char	__pad3[8];
-	long long	st_size;
-	unsigned int	st_blksize;
-	unsigned char	__pad4[8];
-	unsigned int	st_blocks;
-	unsigned int	st_atime;
-	unsigned int	__unused1;
-	unsigned int	st_mtime;
-	unsigned int	__unused2;
-	unsigned int	st_ctime;
-	unsigned int	__unused3;
-	unsigned int	__unused4;
-	unsigned int	__unused5;
-};
-struct stat64 {
-	unsigned char	__pad0[6];
-	unsigned short	st_dev;
-	unsigned long long	st_ino;
-	unsigned int	st_mode;
-	unsigned int	st_nlink;
-	unsigned int	st_uid;
-	unsigned int	st_gid;
-	unsigned char	__pad2[6];
-	unsigned short	st_rdev;
-	unsigned char	__pad3[8];
-	long long	st_size;
-	unsigned int	st_blksize;
-	unsigned char	__pad4[8];
-	unsigned int	st_blocks;
-	unsigned int	st_atime;
-	unsigned int	__unused1;
-	unsigned int	st_mtime;
-	unsigned int	__unused2;
-	unsigned int	st_ctime;
-	unsigned int	__unused3;
-	unsigned int	__unused4;
-	unsigned int	__unused5;
-};
-
-#else
-#ifndef __USE_FILE_OFFSET64
-struct stat {
-	unsigned short	st_dev;
-	unsigned long	st_ino;
-	unsigned short	st_mode;
-	short		st_nlink;
-	unsigned short	st_uid;
-	unsigned short	st_gid;
-	unsigned short	st_rdev;
-	long		st_size;
-	long		st_atime;
-	unsigned long	__unused1;
-	long		st_mtime;
-	unsigned long	__unused2;
-	long		st_ctime;
-	unsigned long	__unused3;
-	long		st_blksize;
-	long		st_blocks;
-	unsigned long	__unused4[2];
-};
+#define kernel_stat kernel_stat64
 #else
-struct stat {
+struct kernel_stat {
 	unsigned char	__pad0[6];
 	unsigned short	st_dev;
 	unsigned long long	st_ino;
@@ -102,8 +33,7 @@
 };
 #endif
 
-#ifdef __USE_LARGEFILE64
-struct stat64 {
+struct kernel_stat64 {
 	unsigned char	__pad0[6];
 	unsigned short	st_dev;
 	unsigned long long	st_ino;
@@ -127,8 +57,6 @@
 	unsigned int	__unused4;
 	unsigned int	__unused5;
 };
-#endif
-#endif
 
 #endif	/*  _BITS_STAT_STRUCT_H */