cmd/link: add padding after runtime.etext

The runtime.etext symbol is a marker symbol that marks the end of
(Go's) text section. Currently it has 0 size on some platforms.
Especially in external linking mode, this may cause the next
symbol (e.g. a C function) to have the same address as
runtime.etext, which may confuse some symbolizer. Add some padding
bytes to avoid address collision.

Change-Id: Ic450bab72e4ac79a3b6b891729831d4148b89234
Reviewed-on: https://go-review.googlesource.com/c/go/+/479075
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Nicolas Hillegeer <aktau@google.com>
Run-TryBot: Nicolas Hillegeer <aktau@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>

0 files changed, 0 insertions, 0 deletions