internal/gocore: fix pointer locations for small objects in green tea

The tests are currently broken when GOEXPERIMENT=greenteagc because that
shifted where the pointer/scalar bits are located for small objects a
little bit. This change modifies gocore to look in the right place and
detect if GOEXPERIMENT=greenteagc is enabled (and if we're using Green
Tea in general, if/when it becomes the default).

This was not caught by the builders because we don't have an x/debug
builder that sets the GOEXPERIMENT.

Change-Id: I746ce601ebc12738920616889200f23642f7280f
Reviewed-on: https://go-review.googlesource.com/c/debug/+/699975
Reviewed-by: Michael Pratt <mpratt@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Nicolas Hillegeer <aktau@google.com>
Commit-Queue: Nicolas Hillegeer <aktau@google.com>
1 file changed
tree: d9bd0266da04820b1554da1be62b9e230dcc02a5
  1. cmd/
  2. dwtest/
  3. internal/
  4. third_party/
  5. codereview.cfg
  6. CONTRIBUTING.md
  7. go.mod
  8. go.sum
  9. LICENSE
  10. README.md
README.md

Go Debug

Go Reference

This repository holds utilities and libraries for debugging Go programs.

WARNING! Please expect breaking changes and unstable APIs. Most of them are currently are at an early, experimental stage.

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