[patch] Add baseline for SPARC64/Linux

[Eric Botcazou]

Tested on SPARC64/Linux, OK for the mainline?


2019-02-20  Eric Botcazou  <ebotcazou@adacore.com>

	* configure.host (abi_baseline_pair): Adjust for SPARC64/Linux.
	* config/abi/post/sparc64-linux-gnu: New directory.
	* config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: New file.
	* config/abi/post/sparc64-linux-gnu/32: New directory.
	* config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: New file.

-- 
Eric Botcazou
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