RFR: JDK-8260485: Simplify and unify handler vectors in Posix signal code [v2]

[Thomas Stuefe]

On Wed, 3 Feb 2021 00:42:39 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> Thomas Stuefe has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains five additional commits since the last revision:
>> 
>>  - Make SavedSignalHandlers use C-heap for its items
>>  - Removed display-replaced-handler-logic
>>  - Feedback David
>>  - Merge
>>  - JDK-8260485-signal-handler-improvements
>
> src/hotspot/os/posix/signals_posix.cpp line 842:
> 
>> 840:     if (sig == SHUTDOWN2_SIGNAL && !isatty(fileno(stdin))) {
>> 841:       tty->print_cr("Running in non-interactive shell, %s handler is replaced by shell",
>> 842:                     os::exception_name(sig, buf, O_BUFLEN));    // When comparing, ignore the SA_RESTORER flag on Linux
> 
> What does this comment mean in this context ???

Nothing. This, like the "flags" comment before, must have been accidental paste errors. I went through the patch again, but I hope this was the last one.

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PR: https://git.openjdk.java.net/jdk/pull/2251