int_osx_receive_prim() in gsm-fw/gpf/osx/osx.c: there was an error in the reconstruction of this function from disassembly in the logic that implements special handling for MPHC_RXLEV_REQ messages. The code is now fixed to properly match what the binary object version does; with this fix the firmware now performs the power measurement phase correctly and the initial network registration succeeds.

/*
 * These functions are normally defined in the DL protocol stack entity,
 * and are called by L1S.  When building L1 standalone, we need to
 * provide stubs.
 */

void *dll_read_dcch()
{
	return(0);
}

void *dll_read_sacch()
{
	return(0);
}

void dll_dcch_downlink()
{
}