[jdk11u-dev] RFR: 8234930: Use MAP_JIT when allocating pages for code cache on macOS [v4]

[Vladimir Kempik]

> Hello, here is alternative backport of 8234930 to jdk11u.
> Very minimalistic change for platforms other than macos, just one unused argument.
> We have used this patch in zulu11 for more than a year now and found no issues with it on macos and other platforms.
>
> Technically it's mostly the same as previous (3patch) version but has no prerequests.

Vladimir Kempik has updated the pull request incrementally with one additional commit since the last revision:

Make virtualspace usage under macroses

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Changes:
- all: https://git.openjdk.java.net/jdk11u-dev/pull/710/files
- new: https://git.openjdk.java.net/jdk11u-dev/pull/710/files/fa1a575e..5d52ed92

Webrevs:
- full: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=710&range=03
- incr: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=710&range=02-03

Stats: 10 lines in 2 files changed: 4 ins; 1 del; 5 mod
Patch: https://git.openjdk.java.net/jdk11u-dev/pull/710.diff
Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/710/head:pull/710

PR: https://git.openjdk.java.net/jdk11u-dev/pull/710