cmd/go: add -asan option

The -asan option compiles Go code to use the address sanitizer.  This is
intended for use when linking with C/C++ code compiled with -fsanitize=address.
When memory blocks are passed back and forth between C/C++ and Go, code in
both languages will agree as to whether the memory is validly allocated or not,
and will report errors for any use of invalid memory.

Updates #44853.

Change-Id: I0209002ef795cc1c823daae557fb80c906158db3
Reviewed-on: https://go-review.googlesource.com/c/go/+/298612
Trust: fannie zhang <Fannie.Zhang@arm.com>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
11 files changed
tree: 37f1363f345aac34e290e746bf130bb54588eb5e
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. codereview.cfg
  12. CONTRIBUTING.md
  13. CONTRIBUTORS
  14. LICENSE
  15. PATENTS
  16. README.md
  17. SECURITY.md
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