On 3/12/2020 9:19 pm, Magnus Ihse Bursie wrote:
On Thu, 3 Dec 2020 04:34:52 GMT, David Holmes <dhol...@openjdk.org> wrote:
The signal-chaining facility was introduced in JDK 1.4 nearly 20 years ago and
supported three different Linux signal API's: sigset, signal and sigaction:
https://docs.oracle.com/javase/8/docs/technotes/guides/vm/signal-chaining.html
Only sigaction is a Posix supported API for multi-threaded processes, that we
can use cross-platform. Both signal and sigset are obsolete and have undefined
behaviour in a multi-threaded process. From the Linux man pages:
sigset: This API is obsolete: new applications should use the POSIX signal API
(sigaction(2), sigprocmask(2), etc.)
signal: The behavior of signal() varies across UNIX versions, and has also
varied historically across different versions of Linux. Avoid its use: use
sigaction(2) instead.
We should deprecate the use of signal and sigset in JDK 16 with a view to their
removal in JDK 17.
A CSR request has been filed.
Testing: hotspot/jtreg/runtime/signal tests
Thanks,
David
As we say in Swedish: Äntligen! :-)
Build changes look good.
Thanks for the review Magnus!
David
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Marked as reviewed by ihse (Reviewer).
PR: https://git.openjdk.java.net/jdk/pull/1587
