RFR: 8274300: Address dsymutil warning by excluding platform specific files

[David Holmes]

On Fri, 5 Jan 2024 21:05:49 GMT, Mikael Vidstedt <mikael at openjdk.org> wrote:

> When building on macOS, dsymutil generates a warning for some files:
> 
> `warning: no debug symbols in executable (-arch x86_64)`
> 
> It turns out that the files in question have one thing in common: they're empty. Specifically, the source files have include guards which, on macOS, end up excluding all the actual source code, leaving an effectively empty source file and hence empty object file.
> 
> This change excludes the relevant files from the builds/platforms where they're not needed.
> 
> Testing: tier1,builds-tier[2-5]

make/test/JtregNativeHotspot.gmk line 862:

> 860: ifeq ($(call And, $(call isTargetOs, linux) $(call isTargetCpu, aarch64)), false)
> 861:   BUILD_HOTSPOT_JTREG_EXCLUDE += libTestSVEWithJNI.c
> 862: endif

I would have put this inside the existing Linux section  ie move to before the endif at line 858, and then just check for aarch64.

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PR Review Comment: https://git.openjdk.org/jdk/pull/17287#discussion_r1444130843