setting breakpoints in C++ ctors in shared libs that are executed before main

[Fons Rademakers]

Hi,

  using gdb 5.3 and gdb 6.1 on Linux x86 I am not able to set any
breakpoints in code that will be executed when global C++ objects are
initialized before main is hit. These C++ objects are in a shared
library.

It seems the main issue is that the shared library symbol tables are not
read at gdb startup for a specific executable. Gdb must be able to look
at the list of shared libs against which the executable was linked and
load the symbols for these lib. Is there a switch to turn this behavior
on?

Note that the gdb on MacOS X works as expected.


Cheers, Fons.


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