[llvm-branch-commits] [llvm] [DLCov] Origin-Tracking: Enable collecting and symbolizing stack traces (PR #143591)

[Stephen Tozer via llvm-branch-commits]

SLTozer wrote:

> A bigger question though is whether this can be tested.

That's a good question - in theory yes, but it sounds brittle. Assuming we're testing the output of backtrace/symbolize, we'd have a test that could fail if any of a variety of function names changed. Another argument against testing is that this code exists to generate formatted, human readable output - most of the complicated parts are in `llvm-symbolizer` and `libbacktrace`, while these functions are essentially just invoking them and formatting the output.

All the same, testing is generally good; I'll consider how would be best to test this, but I will also happily take suggestions if you/others have any.

https://github.com/llvm/llvm-project/pull/143591