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Austin Clements authored
gentraceback is used in many contexts where write barriers are disallowed. This currently works because the only write barrier is in assigning frame.argmap in setArgInfo and in practice frame is always on the stack, so this write barrier is a no-op. However, we can easily eliminate this write barrier, which will let us statically disallow write barriers (using go:nowritebarrierrec annotations) in many more situations. As a bonus, this makes the code a little more idiomatic. Updates #10600. Change-Id: I45ba5cece83697ff79f8537ee6e43eadf1c18c6d Reviewed-on: https://go-review.googlesource.com/17003 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Dmitry Vyukov <dvyukov@google.com>
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