[PATCH] pread/pwrite fix for s390-64.

[Martin Schwidefsky]

> > Ok, that explains the compile time error. To enable asynchronous cancel for
> > pread/pwrite/pread64/pwrite64 we still need the small C files to do the
> > LIBC_CANCEL_ASYNC/LIBC_CANCEL_RESET calls, don't we? I think the original
> > patch is valid.
> 
> No, the cancelable syscalls are generated using <sysdep-cancel.h>
> instead of <sysdep.h> which takes care of the rest.

Makes sense. I went back to the drawing board and found the real cause for the
pread/pwrite problems on s390-64. It's one of these "how could this ever work" bugs.
The system call numbers of pread and pwrite are defined in linux/include/unistd.h
as __NR_pread64 and __NR_pwrite64. make-syscalls.sh could not find the system
call numbers for pread and pwrite and didn't emit the echos for the PSEUDO
implementation to sysd-syscalls. That's why the generic linux implemenations for
pread and pwrite gets used (and these are wrong for s390-64). The fix is really
simple: correct the system call names for pread/pwrite in syscalls.list.

blue skies,
   Martin

2003-03-10  Martin Schwidefsky  <schwidefsky@de.ibm.com>

	* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list: Correct system
	call names for pread and pwrite.

diff -urN libc/sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list libc-s390/sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list
--- libc/sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list	Mon Mar 10 18:09:02 2003
+++ libc-s390/sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list	Mon Mar 10 18:09:37 2003
@@ -2,8 +2,8 @@
 
 llseek		EXTRA	lseek		C:3	__libc_lseek	__lseek lseek __libc_lseek64 __llseek llseek __lseek64 lseek64
 lseek		llseek	-
-pread		-	pread		C:4	__libc_pread	__libc_pread64 __pread pread __pread64 pread64
-pwrite		-	pwrite		C:4	__libc_pwrite	__libc_pwrite64 __pwrite pwrite __pwrite64 pwrite64
+pread		-	pread64		C:4	__libc_pread	__libc_pread64 __pread pread __pread64 pread64
+pwrite		-	pwrite64	C:4	__libc_pwrite	__libc_pwrite64 __pwrite pwrite __pwrite64 pwrite64
 fstatfs		-	fstatfs		i:ip	__fstatfs	fstatfs fstatfs64 __fstatfs64
 statfs		-	statfs		i:sp	__statfs	statfs statfs64
 getpeername	-	getpeername	i:ipp	__getpeername	getpeername