On Thu, 31 Oct 2002 12:20:14 -0500 (EST) Daniel Eischen <[EMAIL PROTECTED]> wrote:
> I wonder how it works for Solaris (you can see both the non-underscore > and single-underscore symbols resolve to the same thing)? Perhaps their > stubs in libc pull the libgcc trick? Solaris libc uses something called ti_jmp_table to locate pthread symbols. Both _pthread and pthread functions resolve to the same stub which does something like this: 1) fetch a function pointer from the ti_jmp_table 2) jump to it. By default, ti_jump_table entries contain pointers to dummy function like _return_zero if no threading library is loaded. When the threading library is loaded, ti_jump_table is populated with new pointers to functions implemented in threading library library. GDB did not allow me to track down where exactly this happens, I presume .init function in libpthread.so does that. Just FYI. -- Alexander Kabaev To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
