Port-amiga archive

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]

Re: GCC8 v.s. amiga


On 2020/06/27 19:02, Michael van Elst wrote:
rokuyama.rk%gmail.com@localhost (Rin Okuyama) writes:
Hmm, then it is problem peculiar to 68060, or GCC miscompile something
with tuning for 68060. I observed the problem both for -m68060 and

Which compiler flag do you use? Do you use GENERIC? Then, it is
compiled with -m68020-60 by arch/m68k/Makefile.cmachflags...

I use a mostly stripped down GENERIC, but no change to CPU flags.
So yes, it is built with -m68020-60.

Or emulator accepts some kinds of instructions that do not work on
real hardwares?

I don't think so. But it doesn't emulate caches and the TLB works

Thank you for your comments! I understand the situation.

Saying that, after a few hours idling in multi-user, the system
paniced with an uvm_fault followed by an illegal instruction
trap. Neither looked real in DDB.

I'll have to retry this with a gcc7-built kernel, it could be
some other m68k instability introduced in -current.

Hmm, for my A1200, a GCC7-buit kernel as of last week works without
problems at least for several days. So, it can be due to GCC8.


Home | Main Index | Thread Index | Old Index