This revision is in two commits:
libkvm: support little-endian powerpc64 minidumps MFC after: 2 weeks MFC to: stable/14, stable/15 Sponsored by: FreeBSD Foundation
libkvm: route powerpc64 minidumps to minidump backend
The regular powerpc64 core probes only checked the kernel ELF and thus
also matched minidumps. In particular, the powerpc64le probe could
claim a minidump before the minidump backend and then reject it as an
invalid ELF core.
Exclude minidumps from both regular powerpc64 probes and add a
regression test that verifies a powerpc64le minidump reaches the
minidump parser.
Fixes: f4eb39ba6bc9 ("[PowerPC64LE] libkvm powerpc64le support.")
MFC after: 2 weeks
MFC to: stable/14, stable/15
Sponsored by: FreeBSD Foundation