On Tue, 18 Jan 2000, Ralf Baechle wrote:
> On Mon, Jan 17, 2000 at 07:56:42PM -0600, Andrew R. Baker wrote:
> > > A simple solution is to hardwire the commmand line in
> > > arch/mips/kernel/setup.c.
> > I have some hackish code that queries the prom enviroment and edits the
> > commandline to reflect the appropriate console. If that is worthwhile to
> > have available I will dig up a diff.
> Have you considered hacking kerne/printk.c:console_setup() instead?
> There is already some SPARC code there.
The code in kernel/printk.c seems to be only involved in normalizing the
names of the serial ports. What I needed was to get the console
enviroment setting from the prom. I don't like the idea of putting prom
code into kernel/printk.c. Here is the code I used (from
/* get the console enviroment variable into the command line.
* But only if the console parameter wasn't entered by the user.
* Is this a bad thing to do here?
if(console_option == 0)
console = prom_getenv("console");
cp += strlen("console=");
cp += strlen(console);
*cp++ = ' ';
I don't like the way it messes with the passed commandline. However, we
could read the value into some other variable and let kernel/printk.c pick
it up from there.