tools/nolibc: handle 64-bit off_t for llseek

Correctly handle 64-bit off_t values in preparation for 64-bit off_t on
32-bit architectures.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Willy Tarreau <w@1wt.eu>

diff --git a/tools/include/nolibc/sys.h b/tools/include/nolibc/sys.h
index fcc36cffad4db19c418b206f0556e3ab39c9a89d..2b186d1af52e30a1dccea7f4e0d2ce8cce394d8f 100644 (file)
--- a/tools/include/nolibc/sys.h
+++ b/tools/include/nolibc/sys.h
@@ -612,8 +612,7 @@ off_t sys_lseek(int fd, off_t offset, int whence)
        off_t result;
        int ret;
 
-       /* Only exists on 32bit where nolibc off_t is also 32bit */
-       ret = my_syscall5(__NR_llseek, fd, 0, offset, &loff, whence);
+       ret = my_syscall5(__NR_llseek, fd, offset >> 32, (uint32_t)offset, &loff, whence);
        if (ret < 0)
                result = ret;
        else if (loff != (off_t)loff)