gdb/doc/ChangeLog:

gdb/doc/ChangeLog:
2012-04-27  Sergio Durigan Junior  <sergiodj@redhat.com>
	    Tom Tromey  <tromey@redhat.com>

	* gdb.texinfo (Static Probe Points): New entry, explaining SystemTap
	and generic static probe support on GDB.

gdb/testsuite/ChangeLog:
2012-04-27  Sergio Durigan Junior  <sergiodj@redhat.com>
	    Tom Tromey  <tromey@redhat.com>

	* gdb.base/default.exp: Add `$_probe_arg*' convenience
	variables.
	* gdb.base/stap-probe.c: New file.
	* gdb.base/stap-probe.exp: New file.
	* gdb.trace/stap-trace.c: New file.
	* gdb.trace/stap-trace.exp: New file.
	* gdb.cp/nextoverthrow.exp: Add check for SystemTap probe in
	libgcc's unwinder.