[PATCH] D99695: [llvm-cov] Use -path-equivalence to support relative path.

[Petr Hosek via Phabricator via llvm-commits]

phosek added a comment.

In D99695#2664701 <https://reviews.llvm.org/D99695#2664701>, @vsk wrote:

> I think then you would somehow need multiple -compilation-dir options if e.g. you have paths with different levels of ../ nesting, e.g. ../../foo.c and ../../../../bar.c. That sounds like it could become hard to manage.
>
> In RawCoverageFilenamesReader::readUncompressed, we do:
>
>   SmallString<256> P(CWD);
>   llvm::sys::path::append(P, Filename);
>
> Can this just be turned into an absolute path?

The flag would override the compilation dir that's stored inside the profile (the 0th path entry) so there should be just one. In that code snippet, it means overriding `CWD`.


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  https://reviews.llvm.org/D99695/new/

https://reviews.llvm.org/D99695