RFR: 8289230: Move PlatformXXX class declarations out of os_xxx.hpp [v2]

[David Holmes]

On Tue, 28 Jun 2022 22:44:55 GMT, Ioi Lam <iklam at openjdk.org> wrote:

>> Doesn't the OS_HEADER() -similar macro that handles the posix case too? I don't see it though.
>
> ` OS_HEADER(threadCrashProtection)` will give threadCrashProtection_linux.hpp, etc. It won't give us threadCrashProtection_posix.hpp. I didn't want to write three threadCrashProtection_{aix,bsd,linux}.hpp files that each just has a single line that includes the _posix version.

Yeah no posix support with OS_HEADER.

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PR: https://git.openjdk.org/jdk/pull/9303