tree 300fcd5555077542ce0a5b314b8c43baea3acb71
parent 867a4d9c474cc8aba64f3ecc16b25b3f1790f65f
author Markus Böck <markus.boeck02@gmail.com> 1615838168 +0100
committer Copybara-Service <copybara-worker@google.com> 1616052978 -0700

[test] Add ability to get error messages from CMake for errc substitution

Visual Studios implementation of the C++ Standard Library does not use strerror to produce a message for std::error_code unlike other standard libraries such as libstdc++ or libc++ that might be used.

This patch adds a cmake script that through running a C++ program gets the error messages for the POSIX error codes and passes them onto lit through an optional config parameter.

If the config parameter is not set, or getting the messages failed, due to say a cross compiling configuration without an emulator, it will fall back to using pythons strerror functions.

Differential Revision: https://reviews.llvm.org/D98278

GitOrigin-RevId: af2796c76d2ff4b73165ed47959afd35a769beee