cmd/internal/objabi/doc.go has comments decribing the (old)
object file format. But cmd/internal/objabi has nothing to do
with object files, and never did. Delete.
Move some comment to cmd/internal/goobj, where the (new) object
file format is actually defined, and update to reflect the
current status.
Change-Id: Ied96089df4be35e5d259a572ed60ee00f2cd0d1d
Reviewed-on: https://go-review.googlesource.com/c/go/+/249958
Reviewed-by: Than McIntosh <thanm@google.com>
Switch pcdata over to content addressable symbols. This is the last
step before removing these from pclntab_old.
No meaningful benchmarks changes come from this work.
Change-Id: I3f74f3d6026a278babe437c8010e22992c92bd89
Reviewed-on: https://go-review.googlesource.com/c/go/+/247399
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
