Thanks for the info, Chris. On Wed, 18 Nov 2020 at 02:43, Chris Johns <chr...@rtems.org> wrote: > > > > On 17/11/20 10:43 pm, Hesham Almatary wrote: > > Hello, > > > > I am trying to debug a dynamically loaded ELF object with GDB: My setup is: > > rtems-riscv64: > > GDB: GNU gdb (GDB) 10.0.50.20200904-git (build with RSB/rtems6) > > Host: Ubuntu 20.04.1 LTS > > > > GDB doesn't seem to notice when I dlopen an object (which gets loaded, > > linked and run fine). > > libdl has the NetBSD type support built in for debugging. A function is called > when a module is loaded and there is a table of modules GDB reads and then > loads > the object file. > Is that expected to work on Linux with recent GDB versions? GDB doesn't seem to detect when "_rtld_debug_state" is called from dlopen, and consequently isn't aware of the list of objects. Does that need GDB to be modified with solib-rtems* or something?
> > Any instructions or idea how to troubleshoot that further? > > At this point the simplest path is to get the load address(es) and load the > symbols with the VMA. > I can use "add-symbol-file" filename for each object and give it the text_base address. This only allows me to break on functions within loaded objects. If that's not what you mean, how can I load the symbols with the VMA? > Anything else would require adding support to GDB or maybe a python module > would > work. I am not sure if the python approach is possible. > > Chris -- Hesham _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel