[jdk11u-dev] RFR: 8234930: Use MAP_JIT when allocating pages for code cache on macOS [v7]

[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:

  put multiline code difference under ifdefs instead of MACOS_ONLY

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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/dfef95e3..83f2a865

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=710&range=06
 - incr: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=710&range=05-06

  Stats: 7 lines in 1 file changed: 3 ins; 0 del; 4 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