ringtools/imy: fix duplicate definition of tdma_durations[] The bug was reported by Vadim Yanitskiy <fixeria@osmocom.org>, although the present fix is slightly different from the contributed patch: because main.c doesn't need this tdma_durations[] array at all, let's simply remove the reference to this array from main.c rather than turn it into an extern. I no longer remember my original thought flow that resulted (by mistake) in tdma_durations[] being multiply defined in main.c and durations.c. My intent might have been to define all globals in main.c and have the reference in durations.c be an extern - and I missed that extern - but without clear memory, I have no certainty. In any case, having this data array defined in the same module that fills it (durations.c) is sensible, so let's make it the new way.

/*
 * In some error cases in our loadagent code we have no better course
 * of action available than to halt in a tight loop.  We define _exit()
 * to do the latter.  We have defined some codes for the argument value
 * that goes into R0; if you manage to hook up JTAG and get it to work,
 * you might be able to see what went wrong.
 */

#define	HALTCODE_MAINEXITED	0x40
#define	HALTCODE_INVALIDUART	0x41
#define	HALTCODE_BOOTROMVER	0x42