[dev.link] cmd/internal/goobj: support parsing new object file

Add support of parsing new object file format. We use the new
parser if the magic string matches the new one, otherwise use the
old one.

The parsed data are still filled into the current goobj API. In
the future we may consider to change the goobj API to a close
match of the object file data.

Now objdump and nm commands support new object file format.

For a reference to a symbol defined in another package, with the
new object file format we don't know its name. Write it as
pkg.<#nn> for now, where nn is its symbol index.

Change-Id: I06d05b2ca834ba36980da3c5d76aee16c3b0a483
Reviewed-on: https://go-review.googlesource.com/c/go/+/196031
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>

0 files changed, 0 insertions, 0 deletions