Pending breakpoints on lines that don't exist

Marc Khouzam marc.khouzam@ericsson.com
Tue Jan 3 21:30:00 GMT 2012


Hi,

I grabbed the 7.4 branch to make sure Eclipse was ready
for it.  After no longer using the removed command
'maint set python print-stack on'
all our JUnit tests now pass with the new GDB except 
one, which attempts to set a breakpoint on an invalid line.
GDB 7.4 now sets a pending breakpoint on lines that don't
exist.  Is this a regression or a wanted change?
I didn't want to update my tests if this was a regression.

The change is illustrated in the two short sessions below.
Note that this also happens using line 0 (which is what
my JUnit test does).

Thanks

Marc


> gdb.7.3 a.out
GNU gdb (GDB) 7.3.1
(gdb) l
1       int main() { return 0; }
(gdb) l 
Line number 2 out of range; a.cc has 1 lines.
(gdb) b 2
No line 2 in file "a.cc".
(gdb) info b
No breakpoints or watchpoints.


> gdb.7.4 a.out
GNU gdb (GDB) 7.3.91.20120103-cvs
(gdb) l
1       int main() { return 0; }
(gdb) l 
Line number 2 out of range; a.cc has 1 lines.
(gdb) b 2
No line 2 in the current file.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 1 (2) pending.
(gdb) info b
Num     Type           Disp Enb Address    What
1       breakpoint     keep y   <PENDING>  2



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