I have an embedded ARM application which is bundled with all the so-libraries stripped, including the libpthread.so. Sometimes the application gets stuck in some part of code and I want to be able to attach to it with gdb and see what's going on. The problem is that gdb refuses to load the needed threading support library, with the following messages:
Trying host libthread_db library: /home/me/debug_libs/libthread_db.so.1. td_ta_new failed: application not linked with libthread thread_db_load_search returning 0 warning: Unable to find libthread_db matching inferior's thread library, thread debugging will not be available.
Because of this I cannot debug the application, e.g. I cannot see current call stacks for all threads.
After some investigation I suspect that the
td_ta_new failing with the
application not linked with libthread is caused by the stripped version of libpthread, which lacks the
nptl_version symbol. Is there any way to bypass the error?
The gdb is compiled for ARM and being run on the device itself. I have unstripped versions of the libraries, but the application is already running with the stripped libraries.