[SPARC] Unwind through signal handler on newer Solaris 10

[Eric Botcazou]

The DWARF2 unwinder doesn't work correctly on newer Solaris 10 releases.  This 
is a matter of adjusting the pattern matching code.

Tested on SPARC/Solaris 8, 9 and 10, applied on the mainline and 4.5 branch.


2010-10-27  Eric Botcazou  <ebotcazou@adacore.com>

	* config/sparc/sol2-unwind.h (sparc64_fallback_frame_state): Adjust
	for newer Solaris 10 release.
	(sparc_fallback_frame_state): Likewise.


-- 
Eric Botcazou
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