static voidforcele(void){#ifdef BIGENDCHECK union { ulong ul; uchar uc[sizeof(ulong)]; } u; u.ul = 0; coherence(); u.uc[0] = 1; coherence(); if (u.ul == 1) return; emerge('?'); emerge('e'); if ((u.ul & MASK(8)) == 0) { emerge('B'); panic("rdbaseticks: cpu%d is big-endian", m->machno); } else { emerge('W'); panic("rdbaseticks: cpu%d is whacked-endian", m->machno); }#endif} voidckbigendian(char *state){ int wrong; wrong = 0; if (getpsr() & PsrBigend) { setendlittle(); wrong++; wave('?'); wave('e'); wave('p'); if (state == nil) state = "running"; iprint("cpu%d: %s in big-endian mode\n", m->machno, state); } if (controlget() & CpCee) { wrong++; wave('?'); wave('e'); wave('e'); if (state == nil) state = "running"; iprint("cpu%d: %s with big-endian exceptions\n", m->machno, state); } if (wrong) { dumpstack(); delay(3000); panic("cpu%d: big-endian", m->machno); }}
static void
forcele(void)
{
#ifdef BIGENDCHECK
union {
ulong ul;
uchar uc[sizeof(ulong)];
} u;
u.ul = 0;
coherence();
u.uc[0] = 1;
coherence();
if (u.ul == 1)
return;
emerge('?');
emerge('e');
if ((u.ul & MASK(8)) == 0) {
emerge('B');
panic("rdbaseticks: cpu%d is big-endian", m->machno);
} else {
emerge('W');
panic("rdbaseticks: cpu%d is whacked-endian", m->machno);
}
#endif
}
void
ckbigendian(char *state)
{
int wrong;
wrong = 0;
if (getpsr() & PsrBigend) {
setendlittle();
wrong++;
wave('?');
wave('e');
wave('p');
if (state == nil)
state = "running";
iprint("cpu%d: %s in big-endian mode\n", m->machno, state);
}
if (controlget() & CpCee) {
wrong++;
wave('?');
wave('e');
wave('e');
if (state == nil)
state = "running";
iprint("cpu%d: %s with big-endian exceptions\n", m->machno, state);
}
if (wrong) {
dumpstack();
delay(3000);
panic("cpu%d: big-endian", m->machno);
}
}