On Thu, 31 Oct 2002, Alexander Kabaev wrote: > 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.
OK, here's a patch that uses a jump table, as well as some other fixes (use single underscore versions of pthread functions internally in libc_r, avoid cancellation points for _pthread_cond_[timed]wait, and other cleanups): http://people.freebsd.org/~deischen/libc-libc_r.diffs Can someone review and test this with GNOME? -- Dan Eischen To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
