RFR: 8360478: libjsig related tier3 jtreg tests fail when asan is configured

[David Holmes]

On Wed, 25 Jun 2025 12:49:54 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

> There are a number of :tier3 HS jtreg tests using libjsig. Unfortunately they clash with asan, so it should be avoided to run them if asan is configured.
> 
> Examples :
> runtime/signal/TestSigalrm.java
> runtime/signal/TestSigbus.java
> 
> They run into errors like this
> 
> 
>  stdout: [];
>  stderr: [==59482==ASan runtime does not come first in initial library list; you should either link runtime to your application or manually preload it with LD_PRELOAD.
> 
> 
> One option would be to avoid running those tests when  asan is enabled.
> Another option is to avoid the  so called 'link  order check' .
> https://github.com/google/sanitizers/wiki/addresssanitizerflags
> 
> verify_asan_link_order  -  Check position of ASan runtime in library list (needs to be disabled when other library has to be preloaded system-wide)

If this fixes the problem then it seems fine. I don't know why ASAN cares about the library order or the implications thereof.

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Marked as reviewed by dholmes (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25978#pullrequestreview-2960135466