Messages in this thread |  | | Date | Mon, 18 Jun 2001 14:19:06 +0530 (IST) | From | "SATHISH.J" <> | Subject | Reg putname() function |
| |
Hi,
Can anybody please tell me what the following assembly code means: Tne function put_unused_fd() does FD_CLR() to clear the file descriptor allocated in case file pointer could not be got. Before returning -1 as file descriptor it goes to put_unused_fd() which calls FD_CLR() which is as follows;
#define __FD_CLR(fd,fdsetp) \ __asm__ __volatile__("btrl %1,%0": \ "=m" (*(__kernel_fd_set *) (fdsetp)):"r" ((int) (fd)))
This is in asm/posixtypes.h. Please decipher this for me.
Thanks in advance, Regards, sathish
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |