runtime/cgo: declare variable setg_gcc as static

variable setg_gcc in runtime/cgo/*.c should be static, otherwise it
will be mixed with the function of the same name in runtime/asm_*.s or
tls_*.s, which causes an error when building PIE with internal linking
mode.

Fixes #31485

Change-Id: I79b311ffcaf450984328db65397840ae7d85e65d
Reviewed-on: https://go-review.googlesource.com/c/go/+/172498
Reviewed-by: Ian Lance Taylor <iant@golang.org>
6 files changed
tree: 579bba7408173a6784a6351cc86200fb70767a66
  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
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