gud: not handing frames-invalid notification

[Nick Roberts]

 > I have noticed lately that when I run M-x gdb on emacs, sometimes the
 > gdb session runs wild sending lots and lots of frames-invalid
 > notifications.  
 > 
 > I don't see any actual handling of this notification.

The frames-invalid annotation should just be ignored now, like many other
annotation. If it is reproducible, set the variable gdb-enable-debug-log to
t, generate the frames-invalid notifications and post the value of
gdb-debug-log to emacs-devel. Below is a (normal) sample transaction.

What version of gdb are you using?

Nick


 (send "server info frame\n" gdb-frame-handler)
 (recv . "\n^Z^Zpre-prompt\n(gdb) \n^Z^Zprompt\n")
 (recv . 
"\n^Z^Zframes-invalid\n\n^Z^Zframes-invalid\n\n^Z^Zframes-invalid\n\n^Z^Zbreakpoint
 1\n\nBreakpoint 1, \n^Z^Zframe-begin 0 
0x804849f\n\n^Z^Zframe-function-name\nmain\n^Z^Zframe-args\n 
()\n^Z^Zframe-source-begin\n at 
\n^Z^Zframe-source-file\nmyprog.c\n^Z^Zframe-source-file-end\n:\n^Z^Zframe-source-line\n38\n^Z^Zframe-source-end\n\n\n^Z^Zsource
 /home/nick/myprog.c:38:389:beg:0x804849f\n\n^Z^Zframe-end\n\n^Z^Zstopped\n")