[Mono-dev] Mono svn and ppc
munroesj at us.ibm.com
Thu Dec 18 21:27:14 EST 2008
> Is mono svn working yet with ppc (not ppc64)? I had to disable it for
> fedora rawhide as there is a signing problem on PPC which looks to have
> come from a revision at 121203.
found the bug. The update to mini-ppc.c (emit_memcpy) replaced ppc_lwzu
macro with ppc_load_reg_update, but the definition of
ppc_load_reg_update for PPC32 in ppc-codegen.h did not account for
reorders parms (ppc_lwz (c, Rd, d, Ra) vs lwzu (c, Rd, Ra, d)).
Net: ppc_lwz is in assembler operand order while ppc_lwzu is instuction
field order. The lhzu, lhau, lha, lbzu follow the lwzu form. The rest of
the loads and stores follow the ppc_pwz form.
In the long run we should make these consistent but in the short term
the attached patch will get the PPC32 mono build working again.
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