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Questions about debugging in shared library

Questions about debugging in shared library

Post by Nong F » Fri, 13 Feb 1998 04:00:00



I am using gdb to debug my executable which is linked to a shared
library.

Having set a break point at a function in the shared library, I run
the executable and gdb shows the message:
        "cannot insert breakpoint
         Temporarily disabled breakpoint in shared library"

And gdb stops at the end of the function.

Here is how I created the shared library and executable:

gcc -g -c -fPIC foo.c                  
gcc -shared -o libfoo.so.1.0 foo.o      
gcc -o main main.c -L. -lfoo

Thanks for any hints!

 
 
 
Top

1. Will strip(debug shared library) == nodebug shared library ?

compiling the C++ code without debug option to produce object
files(.o) and then producing the shared library with them. Say, the
size of this library is SIZE_SO_NoD.

compiling the C++ code with debug option to produce object files(.o)
and then producing the shared library with them. Then, do 'strip
library_name'. Say, the size of this library is SIZE_SO_D.

Will SIZE_SO_NoD & SIZE_SO_D be exactly/almost equal ? If yes/no, why?
Also, what exactly 'mcs -d library_name' do? Does it reduce symbols
from the shared library which was produced without debug option also?

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