cmd/link: mark special symbols reachable

The special symbols are linker-created symbols for special
purposes, therefore reachable (otherwise the linker won't create
them). Mark them so, so they get converted to sym.Symbols when we
convert to old symbol representation.

In particular, the failure for building shared library on PPC64
is due to .TOC. symbol not being converted to sym.Symbol, but
referenced in addmoduledata.

Change-Id: Iaf5d145ffa5d15122e86a6e6983514e56dd5d456
Reviewed-on: https://go-review.googlesource.com/c/go/+/240620
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
1 file changed
tree: 88f96434a3379f4aba80a86703116457b22fcf2c
  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
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