2007-08-14 Olivier Hainque <hainque@adacore.com>

	* system-solaris-x86.ads (ZCX_By_Default): Switch to True.
	(GCC_ZCX_Support): Switch to True.
	
	* s-intman-solaris.adb (Notify_Exception): Call
	Adjust_Context_For_Raise before raising, as expected for signal
	handlers in general.
	
	* s-intman-posix.adb (Notify_Exception): Remove declaration of
	Adjust_Context_For_Raise, moved to the spec of this unit to be visible
	to other implementation bodies.
	
	* s-intman.ads (Adjust_Context_For_Raise): Declare and import here, to
	be visible by multiple implementation bodies.
	
	* init.c [VMS section] (__gnat_handle_vms_condition): Adjust context
	only for conditions coming from hardware.
	[alpha-tru64 section] (__gnat_adjust_context_for_raise): Implement,
	adjustments to signal context prior to exception raise from signal
	handler.
	(__gnat_map_signal for VxWorks): Map SIGSEGV to Storage_Error in RTP
	mode.
	Solaris section: (__gnat_adjust_context_for_raise): New function.
	Implementation of the machine context adjustments to perform prior to
	raise from a signal handler. Version for both sparc and x86.
	(HAVE_GNAT_ADJUST_CONTEXT_FOR_RAISE): Define.
	(__gnat_error_handler): Expect a third argument, ucontext_t *. Adjust it
	prior to raising as expected for any handler, before possible nested
	faults to make sure all the contexts in a chain have been adjusted by
	the time we propagate.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@127433 138bc75d-0d04-0410-961f-82ee72b054a4

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