[llvm-dev] No longer able to run lit tests within a sub-tool

Vedant Kumar via llvm-dev llvm-dev at lists.llvm.org
Fri Sep 22 11:36:29 PDT 2017

Ah, the problem goes away once I build clang-func-mapping.

I stripped some stuff out, but here's pretty much what clang/test/lit.cfg.py says my PATH is:

** PATH **:  /Volumes/Builds/llvm.org-coverage-braces-RA/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin

I wonder how this ever worked before, when I didn't have clang-func-mapping built.

Anyway, thanks for your help!

> On Sep 22, 2017, at 11:31 AM, Zachary Turner <zturner at google.com> wrote:
> This works for me.  Can you run "which clang-func-mapping" and also add a line to clang/test/lit.cfg.py <http://lit.cfg.py/> to print the value of config.environment['PATH']?
> On Fri, Sep 22, 2017 at 11:27 AM Zachary Turner <zturner at google.com <mailto:zturner at google.com>> wrote:
> Looking, thanks for the report.
> On Fri, Sep 22, 2017 at 11:22 AM Vedant Kumar <vsk at apple.com <mailto:vsk at apple.com>> wrote:
> As of r313998, this workflow no longer works:
>   cd <build-dir>
>   ./bin/llvm-lit <src>/llvm/tools/clang/test/CoverageMapping
> I get:
> llvm-lit: /Users/vk/src/llvm.org <http://llvm.org/>-coverage-braces/llvm/tools/clang/test/lit.cfg.py:97 <http://lit.cfg.py:97/>: note: using clang: '/Volumes/Builds/llvm.org <http://llvm.org/>-coverage-braces-RA/bin/clang'
> llvm-lit: /Users/vk/src/llvm.org <http://llvm.org/>-coverage-braces/llvm/utils/lit/lit/TestingConfig.py:101: fatal: unable to parse config file '/Users/vk/src/llvm.org <http://llvm.org/>-coverage-braces/llvm/tools/clang/test/lit.cfg.py <http://lit.cfg.py/>', traceback: Traceback (most recent call last):
>   File "/Users/vk/src/llvm.org <http://llvm.org/>-coverage-braces/llvm/utils/lit/lit/TestingConfig.py", line 88, in load_from_path
>     exec(compile(data, path, 'exec'), cfg_globals, None)
>   File "/Users/vk/src/llvm.org <http://llvm.org/>-coverage-braces/llvm/tools/clang/test/lit.cfg.py <http://lit.cfg.py/>", line 128, in <module>
>     config.substitutions.append( ('%clang_func_map', ' ' + lit.util.which('clang-func-mapping', config.environment['PATH']) + ' ') )
> TypeError: cannot concatenate 'str' and 'NoneType' objects
> However, this still works when running tests within llvm:
>   ./bin/llvm-lit <src>/llvm/test/tools/llvm-cov
> I'd appreciate any help in getting this working again.
> thanks,
> vedant

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