[Gdb] gdb output: Note: breakpoint -1 (disabled) also set at pc 0x0

[Jeffrey Chang]

Hi,

I've recently encountered this error on my system:

# gdb ./myprogram
GNU gdb 6.4.90-debian
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Type "show copying" to see the conditions.
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This GDB was configured as "i486-linux-gnu"...b mainUsing host libthread_db library "/lib/tls/libthread_db.so.1".

(gdb) b main
Breakpoint 1 at 0x8057c39: file ../../src/myprogram.cpp, line 111.
(gdb) b mylibrary.hpp:342
Note: breakpoint -1 (disabled) also set at pc 0x0.
Breakpoint 2 at 0x0: file ../../src/mylibrary.hpp, line 342.
(gdb) run  -f ../../test/config.xml
Starting program: /path/to/myprogram -f ../../test/config.xml
Warning:
Cannot insert breakpoint 2.
Error accessing memory address 0x0: Input/output error.

(gdb)


I've no clue on where this "breakpoint -1" comes from.   "myprogarm" is a C++ programs  linked with  C++ template-based libaries, including STL & Boost.
Any hint on what to check for this type of problem is appreciated.

--- Jeffrey