the fullname in MI

[Midnight Xiong]

Hi,
 I'm wondering, how can I get the fullname of source file in MI output?
 For example,
 ^done,reason="breakpoint-hit",bkptno="1",thread-id="1",frame={addr="0x00401342",
 func="main",args=[{name="argc",value="1"},{name="argv",value="0x3d24c8"}],file="
 test.c",line="11"}
 
 For file="test.c", how can I determine the correct filename (with
absolute path)?
 Thank you so much.
 
 
 
 Best Regards,
 Midnight.Xiong