Error: unrecognized opcode: `mtdcr' and `mfdcr'

[afxgroup]

With gcc11.1 (but i suppose also other versions except maybe 8) is not possible to compile this kind of lines anymore:

asm volatile ("mtdcr %0, %1" :: "i" (reg), "r" (val))

If you try to download l2cache or sam460_setup from OS4 depot where the source code is available you will see that errors are raised.

The opcodes should be present in ./binutils/repo/opcodes/ppc-opc.c I've tried to use different kind of -mcpu but with same issue

[ksdhans]

I just encountered this now. Did you figure out how to fix this?

[afxgroup]

It is fixed in our adtools version. We have asked to push the code here in adtools but the patch has not been accepted yet

[afxgroup]

https://github.com/sba1/adtools/pull/164