/tmp/ecp.* created during kernel build?

[Roger Marquis]

> Found a couple of ecp binaries in /tmp, apparently created concurrent
> with an 11.0 x86_64 kernel build.  Anyone else seen this?  Could they
> be related to a "make buildkernel"?

Confirmed 'make buildkernel' does create these files, apparently via
/usr/src/contrib/elftoolchain/elfcopy/main.c (thanks Adam).

Still odd that these are LSB binaries which don't run on this server and
nothing including cleanworld removed them.  Anyone audited elftoolchain
recently?

Roger