[8u] RFR (S) 8042891: Format issues embedded in macros for two g1 source files

[Hohensee, Paul]

Lgtm.

Thanks,
Paul

-----Original Message-----
From: jdk8u-dev <jdk8u-dev-retn at openjdk.java.net> on behalf of Aleksey Shipilev <shade at redhat.com>
Date: Monday, March 1, 2021 at 10:33 AM
To: "jdk8u-dev at openjdk.java.net" <jdk8u-dev at openjdk.java.net>
Subject: [8u] RFR (S) 8042891: Format issues embedded in macros for two g1 source files

Original issue:
   https://bugs.openjdk.java.net/browse/JDK-8042891
   https://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/2e360934b0cf

In our testing, we have seen G1 crashes when it tries to log something, the stack traces leading
into vnsprintf. I suspect the cause is formatting problems, which are supposed to be resolved by
this backport.

There are lots of conflicts when applying the patch, all resolved by hand. Additionally, I built
with x86_32 and x86_64 with GCC 9, and fixed up a few more formatting warnings. The changes are
mostly putting p2i() where PTR_FORMAT is expected, matching %u or UINTX_FORMAT where needed, etc.

8u variant:
   https://cr.openjdk.java.net/~shade/8042891/webrev.8u.01/

Testing: tier1

--
Thanks,
-Aleksey