gcc:
PR ada/41929
* config/sparc/sol2-unwind.h: Include <sys/frame.h>, <sys/stack.h>
(IS_SIGHANDLER): Define.
(sparc64_is_sighandler): New function, split off from
sparc64_fallback_frame_state.
(sparc_is_sighandler): New function, split off from
sparc_fallback_frame_state.
(sparc64_fallback_frame_state): Merge with ...
(sparc_fallback_frame_state): ... this into ...
(MD_FALLBACK_FRAME_STATE_FOR): ... this.
Change new_cfa to long.
Remove regs_off, fpu_save_off, fpu_save.
Define nframes, mctx.
Use IS_SIGHANDLER, handler_args, mctx, walk stack instead of
hardcoded offsets.
gcc/testsuite:
PR ada/41929
* gnat.dg/null_pointer_deref1.exp: Don't skip on
sparc*-sun-solaris2.11.
From-SVN: r170126
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