754   tty->print_cr("                   pns($sp + 0x7ff, 0, $pc) on Solaris/SPARC");
 755   tty->print_cr("                 - in gdb do 'set overload-resolution off' before calling pns()");
 756   tty->print_cr("                 - in dbx do 'frame 1' before calling pns()");
 757 
 758   tty->print_cr("misc.");
 759   tty->print_cr("  flush()       - flushes the log file");
 760   tty->print_cr("  events()      - dump events from ring buffers");
 761 
 762 
 763   tty->print_cr("compiler debugging");
 764   tty->print_cr("  debug()       - to set things up for compiler debugging");
 765   tty->print_cr("  ndebug()      - undo debug");
 766 }
 767 
 768 #endif // !PRODUCT
 769 
 770 void print_native_stack(outputStream* st, frame fr, Thread* t, char* buf, int buf_size) {
 771 
 772   // see if it's a valid frame
 773   if (fr.pc()) {
 774     st->print_cr("Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)");
 775 
 776     int count = 0;
 777     while (count++ < StackPrintLimit) {
 778       fr.print_on_error(st, buf, buf_size);
 779       st->cr();
 780       // Compiled code may use EBP register on x86 so it looks like
 781       // non-walkable C frame. Use frame.sender() for java frames.
 782       if (t && t->is_Java_thread()) {
 783         // Catch very first native frame by using stack address.
 784         // For JavaThread stack_base and stack_size should be set.
 785         if (!t->on_local_stack((address)(fr.real_fp() + 1))) {
 786           break;
 787         }
 788         if (fr.is_java_frame() || fr.is_native_frame() || fr.is_runtime_frame()) {
 789           RegisterMap map((JavaThread*)t, false); // No update
 790           fr = fr.sender(&map);
 791         } else {
 792           fr = os::get_sender_for_C_frame(&fr);
 793         }
 794       } else {

 754   tty->print_cr("                   pns($sp + 0x7ff, 0, $pc) on Solaris/SPARC");
 755   tty->print_cr("                 - in gdb do 'set overload-resolution off' before calling pns()");
 756   tty->print_cr("                 - in dbx do 'frame 1' before calling pns()");
 757 
 758   tty->print_cr("misc.");
 759   tty->print_cr("  flush()       - flushes the log file");
 760   tty->print_cr("  events()      - dump events from ring buffers");
 761 
 762 
 763   tty->print_cr("compiler debugging");
 764   tty->print_cr("  debug()       - to set things up for compiler debugging");
 765   tty->print_cr("  ndebug()      - undo debug");
 766 }
 767 
 768 #endif // !PRODUCT
 769 
 770 void print_native_stack(outputStream* st, frame fr, Thread* t, char* buf, int buf_size) {
 771 
 772   // see if it's a valid frame
 773   if (fr.pc()) {
 774     st->print_cr("Native frames: (J=compiled Java code, A=aot compiled Java code, j=interpreted, Vv=VM code, C=native code)");
 775 
 776     int count = 0;
 777     while (count++ < StackPrintLimit) {
 778       fr.print_on_error(st, buf, buf_size);
 779       st->cr();
 780       // Compiled code may use EBP register on x86 so it looks like
 781       // non-walkable C frame. Use frame.sender() for java frames.
 782       if (t && t->is_Java_thread()) {
 783         // Catch very first native frame by using stack address.
 784         // For JavaThread stack_base and stack_size should be set.
 785         if (!t->on_local_stack((address)(fr.real_fp() + 1))) {
 786           break;
 787         }
 788         if (fr.is_java_frame() || fr.is_native_frame() || fr.is_runtime_frame()) {
 789           RegisterMap map((JavaThread*)t, false); // No update
 790           fr = fr.sender(&map);
 791         } else {
 792           fr = os::get_sender_for_C_frame(&fr);
 793         }
 794       } else {