problems debugging gcc

[Neil Booth]

Geoff Keating wrote:-

> Oh, it's not related to the global variables.  If it was just that,
> I'd have fixed it a month ago.  Look at STMT_LINENO in c-common.h, and
> notice there is no STMT_FILENAME nor any easy way to add one.
> 
> It started around when functions-as-trees was added.

Instead of adding a filename component and taking up more memory,
would it be too much to switch to using a single lineno and using the
line maps to imply the file name?  It probably is for a quick patch,
but I might as well try.  If it is too much, do you nevertheless agree
that this, and similarly in other places, is worthwhile doing in GCC?

Neil.