gdb-6.6, faking a shared library

[jbbachky@aim.com]

I've got an arm program which makes use of a non-standard shared 
library and I'm looking for ways to inform gdb that it really is a 
shared library.

What I'm calling a shared library is a subset of glibc which gets 
linked/mapped to a specific address, and the programs which "link 
against it" really link against fixed addresses, thus no dynamic 
linking is involved. Special startup code is used to map the library's 
addresses for each process which need it. However, since gdb knows 
nothing about it being shared among other processes (not simply other 
pthreads sharing the same memory map), bad things happen when a 
breakpoint in that library is hit by another process.

Any ideas for making gdb think that a certain address range is a shared 
library? My glibc (v2.2.3) is NOT built for pic/dynamic linking. Thus 
no libthread_db is built. Compiler is gcc v3.4.3, linux is 2.6.10 for 
ARM.

Thanks, John
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