1416743 - llvm-cov is not available on test machines

Status: RESOLVED FIXED

(Testing :: Code Coverage, defect)

Description

[Marco Castelluccio [:marco]]

grcov can't run on test machines because 'llvm-cov' is missing.

There are two options:
1) Use the LLVM API in grcov to avoid the dependency on the llvm-cov binary;
2) Package 'llvm-cov' and its dependencies and install it on test machines.

I'm working on option 1 for now.

Note, for some reason the test harness is not able to notice that grcov is failing but it's hanging while waiting for grcov to finish. I suppose it could be a problem related to the Python subprocess module.

Comment 1

[Marco Castelluccio [:marco]]

Attachment: Update grcov to version 0.1.29

grcov 0.1.29 can parse LLVM gcov data without the need of the external llvm-cov binary.

Comment 2

[Marco Castelluccio [:marco]]

Attachment: Pass '--llvm' argument to grcov on Windows

grcov needs to know that the gcda files were generated by llvm, so we have to pass the "--llvm" argument.

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/mozilla-inbound/rev/61a5cc672896
Update grcov to version 0.1.29, bundling VC++ redistributable libraries. r=jmaher
https://hg.mozilla.org/integration/mozilla-inbound/rev/20f9784628e9
Pass '--llvm' argument to grcov on Windows. r=jmaher

Comment 4

[Cristian Brindusan [:cbrindusan]]

https://hg.mozilla.org/mozilla-central/rev/61a5cc672896
https://hg.mozilla.org/mozilla-central/rev/20f9784628e9