2013-02-14 Pedro Alves <pedro@codesourcery.com>

2013-02-14  Pedro Alves  <pedro@codesourcery.com>
	    Hafiz Abid Qadeer  <abidh@codesourcery.com>

	gdb/
	* tracepoint.h (validate_trace_state_variable_name): Declare.
	* tracepoint.c (validate_trace_state_variable_name): New.
	(trace_variable_command): Parse the trace state variable's name
	without using parse_expression.  Do several validations.
	* mi/mi-main.c (mi_cmd_trace_define_variable): Don't parse the
	trace state variable's name with parse_expression.  Validate it.

	gdb/testsuite/
	* gdb.trace/tsv.exp: Adjust tests, and add a few more.