示例#1
0
void pd_ps(frame f) {
  intptr_t* sp = f.sp();
  intptr_t* prev_sp = sp - 1;
  intptr_t *pc = NULL;
  intptr_t *next_pc = NULL;
  int count = 0;
  tty->print("register window backtrace from %#x:\n", sp);
  while (sp != NULL && ((intptr_t)sp & 7) == 0 && sp > prev_sp && sp < prev_sp+1000) {
    pc      = next_pc;
    next_pc = (intptr_t*) sp[I7->sp_offset_in_saved_window()];
    tty->print("[%d] sp=%#x pc=", count, sp);
    findpc((intptr_t)pc);
    if (WizardMode && Verbose) {
      // print register window contents also
      tty->print_cr("    L0..L7: {%#x %#x %#x %#x %#x %#x %#x %#x}",
		    sp[0+0],sp[0+1],sp[0+2],sp[0+3],
		    sp[0+4],sp[0+5],sp[0+6],sp[0+7]);
      tty->print_cr("    I0..I7: {%#x %#x %#x %#x %#x %#x %#x %#x}",
		    sp[8+0],sp[8+1],sp[8+2],sp[8+3],
		    sp[8+4],sp[8+5],sp[8+6],sp[8+7]);
      // (and print stack frame contents too??)

#ifndef CORE
      CodeBlob *b = CodeCache::find_blob((address) pc);
      if (b != NULL) {
	if (b->is_nmethod()) {
#ifdef COMPILER1
	  methodOop m = ((nmethod*)b)->method();
	  int nlocals = m->max_locals();
	  int nparams  = m->size_of_parameters();
	  tty->print_cr("compiled java method (locals = %d, params = %d)", nlocals, nparams);
	  
	  jint *fp = (jint *)sp[FP->sp_offset_in_saved_window()];

	  // print params
	  tty->print_cr("params:");
	  for (int p=nparams-1; p>=0; p--) {
	    tty->print_cr("  %8x:[fp+%3d]: %#x",fp+23+p,23+p,*(fp+23+p));
	  }

	  // print locals
	  tty->print_cr("locals:",nlocals);
	  for (int l=0; l<nlocals; l++) {	    
	    tty->print_cr("  %8x:[fp-%3d]: %#x",fp-(l+1),l+1,*(fp-(l+1)));
	  }
	  // print oops???
	  // print monitors???
	  // print spills???
#endif	  
	} else if (b->is_java_method()) {
	  tty->print_cr("interpreted java method");
	} else if (b->is_native_method()) {
	  tty->print_cr("native method");
	} else if (b->is_osr_method()) {
	  tty->print_cr("osr method");
	}	
      }
#endif // NOT CORE
    }
    prev_sp = sp;
    sp = (intptr_t *)sp[FP->sp_offset_in_saved_window()];
    sp = (intptr_t *)((intptr_t)sp + STACK_BIAS);
    count += 1;
  }
  if (sp != NULL)
    tty->print("[%d] sp=%#x [bogus sp!]", count, sp);
}