3744   if (osthread->ucontext() != NULL) {
3745     _epc = os::Aix::ucontext_get_pc((ucontext_t *) context.ucontext());
3746   } else {
3747     // NULL context is unexpected, double-check this is the VMThread.
3748     guarantee(thread->is_VM_thread(), "can only be called for VMThread");
3749   }
3750 }
3751 
3752 // Suspends the target using the signal mechanism and then grabs the PC before
3753 // resuming the target. Used by the flat-profiler only
3754 ExtendedPC os::get_thread_pc(Thread* thread) {
3755   // Make sure that it is called by the watcher for the VMThread.
3756   assert(Thread::current()->is_Watcher_thread(), "Must be watcher");
3757   assert(thread->is_VM_thread(), "Can only be called for VMThread");
3758 
3759   PcFetcher fetcher(thread);
3760   fetcher.run();
3761   return fetcher.result();
3762 }
3763 
3764 // Not neede on Aix.
3765 // int os::Aix::safe_cond_timedwait(pthread_cond_t *_cond, pthread_mutex_t *_mutex, const struct timespec *_abstime) {
3766 // }
3767 
3768 ////////////////////////////////////////////////////////////////////////////////
3769 // debug support
3770 
3771 static address same_page(address x, address y) {
3772   intptr_t page_bits = -os::vm_page_size();
3773   if ((intptr_t(x) & page_bits) == (intptr_t(y) & page_bits))
3774     return x;
3775   else if (x > y)
3776     return (address)(intptr_t(y) | ~page_bits) + 1;
3777   else
3778     return (address)(intptr_t(y) & page_bits);
3779 }
3780 
3781 bool os::find(address addr, outputStream* st) {
3782 
3783   st->print(PTR_FORMAT ": ", addr);
3784 
3785   const LoadedLibraryModule* lib = LoadedLibraries::find_for_text_address(addr);
3786   if (lib) {
3787     lib->print(st);

3744   if (osthread->ucontext() != NULL) {
3745     _epc = os::Aix::ucontext_get_pc((ucontext_t *) context.ucontext());
3746   } else {
3747     // NULL context is unexpected, double-check this is the VMThread.
3748     guarantee(thread->is_VM_thread(), "can only be called for VMThread");
3749   }
3750 }
3751 
3752 // Suspends the target using the signal mechanism and then grabs the PC before
3753 // resuming the target. Used by the flat-profiler only
3754 ExtendedPC os::get_thread_pc(Thread* thread) {
3755   // Make sure that it is called by the watcher for the VMThread.
3756   assert(Thread::current()->is_Watcher_thread(), "Must be watcher");
3757   assert(thread->is_VM_thread(), "Can only be called for VMThread");
3758 
3759   PcFetcher fetcher(thread);
3760   fetcher.run();
3761   return fetcher.result();
3762 }
3763 




3764 ////////////////////////////////////////////////////////////////////////////////
3765 // debug support
3766 
3767 static address same_page(address x, address y) {
3768   intptr_t page_bits = -os::vm_page_size();
3769   if ((intptr_t(x) & page_bits) == (intptr_t(y) & page_bits))
3770     return x;
3771   else if (x > y)
3772     return (address)(intptr_t(y) | ~page_bits) + 1;
3773   else
3774     return (address)(intptr_t(y) & page_bits);
3775 }
3776 
3777 bool os::find(address addr, outputStream* st) {
3778 
3779   st->print(PTR_FORMAT ": ", addr);
3780 
3781   const LoadedLibraryModule* lib = LoadedLibraries::find_for_text_address(addr);
3782   if (lib) {
3783     lib->print(st);