[cfe-dev] Libtooling 9 segfault

[E via cfe-dev]

Upon further review it seems like this is a problem in Alpine Linux or musl.
I build my program as a fully static executable in an Alpine Linux Docker container, and it segfaults.
I spun up an Debian container and installed LLVM+Clang from the apt.llvm.org and the executable ran without segfaulting.
The only problem is that it is now difficult to produce a fully statically linked binary.

> On Oct 30, 2019, at 10:03, E <ekmecicspam at gmail.com> wrote:
> 
> Hello,
> 
> I'm currently working on a program that uses libtooling and I've found a consistent segfault in libtooling code.
> 
> Details of the segfault:
> - The program uses the MatchFinder API to match recordDecls and functionDecls. 
> - Only reproducible when the program is compiled and ran on Linux. macOS environment does not segfault
> - Consistently reproducible when the compile_commands.json supplied to the tool is from the nlohmann/crow repository (https://github.com/nlohmann/crow)
> - Backtrace: https://paste.fedoraproject.org/paste/vtkefy-hrjgmyi03i22k0g/raw
> 
> I've considered trying to recreate a minimal working example but "slimming down" the large program I'm working on is difficult.
> Is there any way to find the cause of this segfault without sharing source? 
> 
> Many thanks.
>