CODEWITHSUNDEEP
haskell
Yogesh Sajanikar
Yogesh Sajanikar

Reputation: 1116

Haskell App Crash: Handling Native Exceptions

I have a haskell package which contains native code as well. However, I get exceptions, (and sometimes segfaults) as I interface through FFI.

Is it possible to handle native exceptions on the haskell side. I tried using catch/catchIOError in the some cases without any success.

In this case, I would also like to like to debug only the native code. How can I use native debuggers with Haskell/FFI?

Sometimes, segfaults may occur in the C code. Being able to debug this code would help a lot.

Upvotes: 1

Views: 167

Answers (1)

tomferon
tomferon

Reputation: 5001

If you think the error is in a component in C, just use gdb. You should be able to set breakpoint in your C code and step into it. Compile your code and simply run gdb dist/build/myprogram/myprogram (or wherever it is).

Also you could have a look at valgrind for detecting thinks such as allocated memory not freed.

Upvotes: 2

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