499 // A collection of described stack values that can print a symbolic
 500 // description of the stack memory.  Interpreter frame values can be
 501 // in the caller frames so all the values are collected first and then
 502 // sorted before being printed.
 503 class FrameValues {
 504  private:
 505   GrowableArray<FrameValue> _values;
 506 
 507   static int compare(FrameValue* a, FrameValue* b) {
 508     if (a->location == b->location) {
 509       return a->priority - b->priority;
 510     }
 511     return a->location - b->location;
 512   }
 513 
 514  public:
 515   // Used by frame functions to describe locations.
 516   void describe(int owner, intptr_t* location, const char* description, int priority = 0);
 517 
 518   void validate();
 519   void print();
 520 };
 521 
 522 #endif
 523 
 524 //
 525 // StackFrameStream iterates through the frames of a thread starting from
 526 // top most frame. It automatically takes care of updating the location of
 527 // all (callee-saved) registers. Notice: If a thread is stopped at
 528 // a safepoint, all registers are saved, not only the callee-saved ones.
 529 //
 530 // Use:
 531 //
 532 //   for(StackFrameStream fst(thread); !fst.is_done(); fst.next()) {
 533 //     ...
 534 //   }
 535 //
 536 class StackFrameStream : public StackObj {
 537  private:
 538   frame       _fr;
 539   RegisterMap _reg_map;

 499 // A collection of described stack values that can print a symbolic
 500 // description of the stack memory.  Interpreter frame values can be
 501 // in the caller frames so all the values are collected first and then
 502 // sorted before being printed.
 503 class FrameValues {
 504  private:
 505   GrowableArray<FrameValue> _values;
 506 
 507   static int compare(FrameValue* a, FrameValue* b) {
 508     if (a->location == b->location) {
 509       return a->priority - b->priority;
 510     }
 511     return a->location - b->location;
 512   }
 513 
 514  public:
 515   // Used by frame functions to describe locations.
 516   void describe(int owner, intptr_t* location, const char* description, int priority = 0);
 517 
 518   void validate();
 519   void print(JavaThread* thread);
 520 };
 521 
 522 #endif
 523 
 524 //
 525 // StackFrameStream iterates through the frames of a thread starting from
 526 // top most frame. It automatically takes care of updating the location of
 527 // all (callee-saved) registers. Notice: If a thread is stopped at
 528 // a safepoint, all registers are saved, not only the callee-saved ones.
 529 //
 530 // Use:
 531 //
 532 //   for(StackFrameStream fst(thread); !fst.is_done(); fst.next()) {
 533 //     ...
 534 //   }
 535 //
 536 class StackFrameStream : public StackObj {
 537  private:
 538   frame       _fr;
 539   RegisterMap _reg_map;