e4a4161f1f
When using cgo, some of the frames can be provided by cgoTraceback, a cgo-provided function to generate C tracebacks. Unlike Go tracebacks, cgoTraceback has no particular guarantees that it produces valid tracebacks. If one of the (invalid) frames happens to put the PC in the alignment region at the end of a function (filled with int 3's on amd64), then Frames.Next will find a valid funcInfo for the PC, but pcdatavalue will panic because PCDATA doesn't cover this PC. Tolerate this case by doing a non-strict PCDATA lookup. We'll still show a bogus frame, but at least avoid throwing. Fixes #44971 Change-Id: I9eed728470d6f264179a7615bd19845c941db78c Reviewed-on: https://go-review.googlesource.com/c/go/+/301369 Trust: Michael Pratt <mpratt@google.com> Run-TryBot: Michael Pratt <mpratt@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com> |
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