Hi,
Geert Uytterhoeven wrote:
O.k the inb and outb is fine now, but I get this weird (link) problem:
/sio.c:46: undefined reference to `local symbols in discarded section
.fixup'
/sio.c:46: undefined reference to `local symbols in discarded section
.fixup'
/sio.c:46: undefined reference to `local symbols in discarded section
.fixup'
/sio.c:46: undefined reference to `local symbols in discarded section
.fixup'
/sio.c:47: undefined reference to `local symbols in discarded section
.fixup'
/tmp/ccq1O4nL.o:/sio.c:48: more undefined references to `local symbols
in discarded section .fixup' follow
(Similar story with my program:)
Alternatively, define your own inb() and friends, based on the definitions in
<asm/io.h>.
O.k, by simply copying the inb() definition from asm/io.h and putting it
in my program, like so:
#include <stdio.h>
#define __KERNEL__
#include <asm/io.h>
#define _IO_BASE isa_io_base
#define inb(port) in_8((u8 *)((port)+_IO_BASE))
unsigned long isa_io_base = 0xfe000000;
int main() {
// ioperm(0x00, 0xff, 1);
printf ("Status register: %x\n", inb(0x08));
return 0;
}
it will build! (It's beyond my knowledge why that has made a
difference). I get a segafault of course, since I am running in user
space, but at least it is appears to be making progress. Thanks for the
help.
Now just need to try and get ioperm().
Regards,
Ross..
