svn commit: trunk/uClibc/libc/sysdeps/linux/sh

[vapier at uclibc.org]

Author: vapier
Date: 2007-04-30 14:23:22 -0700 (Mon, 30 Apr 2007)
New Revision: 18533

Log:
Carmelo AMOROSO writes:
running LTP test suite on uClibc-nptl for sh4 I found a bug into pread
and pwrite functions.  When the offset is negative it is not correctly
handled due to a missing shift operation, so it is passed to the
syscall as the highest unsigned positive value.


Modified:
   trunk/uClibc/libc/sysdeps/linux/sh/pread_write.c


Changeset:
Modified: trunk/uClibc/libc/sysdeps/linux/sh/pread_write.c
===================================================================
--- trunk/uClibc/libc/sysdeps/linux/sh/pread_write.c	2007-04-29 23:42:54 UTC (rev 18532)
+++ trunk/uClibc/libc/sysdeps/linux/sh/pread_write.c	2007-04-30 21:23:22 UTC (rev 18533)
@@ -33,7 +33,7 @@
 
 ssize_t __libc_pread(int fd, void *buf, size_t count, off_t offset)
 {
-	return(__syscall_pread(fd,buf,count,0,__LONG_LONG_PAIR((off_t)0,offset)));
+	return(__syscall_pread(fd,buf,count,0,__LONG_LONG_PAIR(offset >> 31,offset)));
 }
 weak_alias(__libc_pread,pread)
 
@@ -66,7 +66,7 @@
 
 ssize_t __libc_pwrite(int fd, const void *buf, size_t count, off_t offset)
 {
-	return(__syscall_pwrite(fd,buf,count,0,__LONG_LONG_PAIR((off_t)0,offset)));
+	return(__syscall_pwrite(fd,buf,count,0,__LONG_LONG_PAIR(offset >> 31,offset)));
 }
 weak_alias(__libc_pwrite,pwrite)