how does one enable barebox's low-level debugging?
Sascha Hauer
s.hauer at pengutronix.de
Mon Dec 3 11:21:21 EST 2012
On Mon, Dec 03, 2012 at 10:45:41AM -0500, Robert P. J. Day wrote:
>
> looking through common/startup.c and decided i wanted to see
> confirmation of all the initcalls running here:
>
> for (initcall = __barebox_initcalls_start;
> initcall < __barebox_initcalls_end; initcall++) {
> debug("initcall-> %pS\n", *initcall);
> result = (*initcall)();
> if (result)
> pr_err("initcall %pS failed: %s\n", *initcall,
> strerror(-result));
> }
>
>
> so i started from scratch, ran "make menuconfig" for both the x-loader
> and barebox to enable "low level debug messages", but i don't see any
> difference in the boot output.
>
> i've perused the barebox wiki and don't see anything regarding that
> setting. am i doing something wrong?
You have to add a "#define DEBUG" to the file you want to have the debug
messages from. Add this *above* the includes, just like in the kernel.
Something not mentioned in the wiki is that before the first console is
initialized barebox will print the messages into a ring buffer which it
will dump when the first console is initialized.
Sascha
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