s-intman-posix.adb (Notify_Exception): Adjust signature, as handler for sigactions with SA_SIGINFO set.

2005-03-08  Olivier Hainque  <hainque@adacore.com>

	* s-intman-posix.adb (Notify_Exception): Adjust signature, as handler
	for sigactions with SA_SIGINFO set. Call
	__gnat_adjust_context_for_raise before raising, to perform the
	potentially required adjustments to the machine context for the GCC
	unwinder.

	* raise.h (__gnat_adjust_context_for_raise): New prototype.

	* init.c (__gnat_adjust_context_for_raise) HPUX: Initial revision.
	Adjust PC by one in the provided machine context.
	(__gnat_install_handler) HPUX: Set SA_SIGINFO in the sigaction flags,
	so that the handler is passed the context structure to adjust prior to
	the raise.
	(__gnat_error_handler) HPUX: Adjust the signature to match what an
	SA_SIGINFO sigaction should look like. Call
	__gnat_adjust_context_for_raise before actually raising.
	(__gnat_adjust_context_for_raise): Default noop to help PC
	adjustments before raise from signal handlers.
	(__gnat_error_handler): Indirectly call a predicate function to
	determine if a condition should be resignaled or not.
	(__gnat_set_resignal_predicate): User interface to modify the predicate.
	(__gnat_default_resignal_p): Default GNAT predicate.

From-SVN: r96482