[release-branch.go1.16] cmd/link: don't cast end address to int32

When linking a very large binary, the section address may not fit
in int32. Don't truncate it.

Fixes #46128.
Updates #46126.

Change-Id: Ibcc8d74bf5662611949e547ce44ca8b973de383f
Reviewed-on: https://go-review.googlesource.com/c/go/+/319289
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
(cherry picked from commit af0f8c149e8a4b237910fc7b41739bedc546473c)
Reviewed-on: https://go-review.googlesource.com/c/go/+/319369
2 files changed
tree: 5dfa19b756d6d748f35252cb68a18f22ccd0df5b
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. CONTRIBUTING.md
  12. CONTRIBUTORS
  13. favicon.ico
  14. LICENSE
  15. PATENTS
  16. README.md
  17. robots.txt
  18. SECURITY.md
  19. VERSION
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