RFR: 8360478: libjsig related tier3 jtreg tests fail when asan is configured [v3]

[Matthias Baesken]

On Fri, 27 Jun 2025 07:13:26 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)
>
> Matthias Baesken has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Readjust COPYRIGHT year

We could also flag the tests with ` @requires "!vm.asan"`   , that would be less intrusive but needs to be done per test .

Probably in practise both approaches work,  for production we do not use ASAN anyways.

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PR Comment: https://git.openjdk.org/jdk/pull/25978#issuecomment-3113525692