void
ProgramCheckException(struct pt_regs *regs)
{
if (regs->msr & 0x100000) {
/* IEEE FP exception */
_exception(SIGFPE, regs);
} else if (regs->msr & 0x20000) {
/* trap exception */
#if defined(CONFIG_XMON) || defined(CONFIG_KGDB)
if (debugger_bpt(regs))
return;
#endif
_exception(SIGTRAP, regs);
} else {
_exception(SIGILL, regs);
}
}
void
ProgramCheckException(struct pt_regs *regs)
{
siginfo_t info;
if (regs->msr & 0x100000) {
/* IEEE FP exception */
parse_fpe(regs);
} else if (regs->msr & 0x40000) {
/* Privileged instruction */
info.si_signo = SIGILL;
info.si_errno = 0;
info.si_code = ILL_PRVOPC;
info.si_addr = (void *)regs->nip;
_exception(SIGILL, &info, regs);
} else if (regs->msr & 0x20000) {
/* trap exception */
if (debugger_bpt(regs))
return;
if (check_bug_trap(regs)) {
regs->nip += 4;
return;
}
info.si_signo = SIGTRAP;
info.si_errno = 0;
info.si_code = TRAP_BRKPT;
info.si_addr = (void *)regs->nip;
_exception(SIGTRAP, &info, regs);
} else {
/* Illegal instruction */
info.si_signo = SIGILL;
info.si_errno = 0;
info.si_code = ILL_ILLTRP;
info.si_addr = (void *)regs->nip;
_exception(SIGILL, &info, regs);
}
}
