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- To: "eigen@xxxxxxxxxxxxxxxxxxx" <eigen@xxxxxxxxxxxxxxxxxxx>
- Subject: Re: [eigen] Eigen and GCC address sanitizer
- From: "Wood, Tobias" <tobias.wood@xxxxxxxxx>
- Date: Tue, 16 Feb 2021 16:54:01 +0000
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- Thread-topic: [eigen] Eigen and GCC address sanitizer
Hello Joseph,
My experience is no - if you want to use Address Sanitizer, *ALL* your code must be compiled with it, otherwise you will hit false positives eventually. This is nothing specific to Eigen but will affect any library.
By coincidence I wrote a blog post about this and how I solve the problem at the weekend, you can find it here: https://spinicist.org.uk/posts/vcpkg-part2/
Good luck,
Toby
From: Joseph Mirabel <joseph.mirabel@xxxxxxx>
Date: Tuesday, 16 February 2021 at 15:20
To: eigen@xxxxxxxxxxxxxxxxxxx <eigen@xxxxxxxxxxxxxxxxxxx>
Subject: [eigen] Eigen and GCC address sanitizer
Dear Eigen developers,
Is it safe to compile a library using Eigen with option
`-fsanitize=address` and then to link this library to another library,
also using Eigen, which hasn't been compiled with this option ?
I have head-buffer-overflow errors coming from
Eigen::internal::handmade_aligned_free(void*), at
/usr/include/eigen3/Eigen/src/Core/util/Memory.h:98.