499 
 500 public:
 501   VerifyStrongCodeRootOopClosure(const HeapRegion* hr, nmethod* nm):
 502     _hr(hr), _failures(false), _has_oops_in_region(false) {}
 503 
 504   void do_oop(narrowOop* p) { do_oop_work(p); }
 505   void do_oop(oop* p)       { do_oop_work(p); }
 506 
 507   bool failures()           { return _failures; }
 508   bool has_oops_in_region() { return _has_oops_in_region; }
 509 };
 510 
 511 class VerifyStrongCodeRootCodeBlobClosure: public CodeBlobClosure {
 512   const HeapRegion* _hr;
 513   bool _failures;
 514 public:
 515   VerifyStrongCodeRootCodeBlobClosure(const HeapRegion* hr) :
 516     _hr(hr), _failures(false) {}
 517 
 518   void do_code_blob(CodeBlob* cb) {
 519     nmethod* nm = (cb == NULL) ? NULL : cb->as_nmethod_or_null();
 520     if (nm != NULL) {
 521       // Verify that the nemthod is live
 522       if (!nm->is_alive()) {
 523         log_error(gc, verify)("region [" PTR_FORMAT "," PTR_FORMAT "] has dead nmethod " PTR_FORMAT " in its strong code roots",
 524                               p2i(_hr->bottom()), p2i(_hr->end()), p2i(nm));
 525         _failures = true;
 526       } else {
 527         VerifyStrongCodeRootOopClosure oop_cl(_hr, nm);
 528         nm->oops_do(&oop_cl);
 529         if (!oop_cl.has_oops_in_region()) {
 530           log_error(gc, verify)("region [" PTR_FORMAT "," PTR_FORMAT "] has nmethod " PTR_FORMAT " in its strong code roots with no pointers into region",
 531                                 p2i(_hr->bottom()), p2i(_hr->end()), p2i(nm));
 532           _failures = true;
 533         } else if (oop_cl.failures()) {
 534           log_error(gc, verify)("region [" PTR_FORMAT "," PTR_FORMAT "] has other failures for nmethod " PTR_FORMAT,
 535                                 p2i(_hr->bottom()), p2i(_hr->end()), p2i(nm));
 536           _failures = true;
 537         }
 538       }
 539     }

 499 
 500 public:
 501   VerifyStrongCodeRootOopClosure(const HeapRegion* hr, nmethod* nm):
 502     _hr(hr), _failures(false), _has_oops_in_region(false) {}
 503 
 504   void do_oop(narrowOop* p) { do_oop_work(p); }
 505   void do_oop(oop* p)       { do_oop_work(p); }
 506 
 507   bool failures()           { return _failures; }
 508   bool has_oops_in_region() { return _has_oops_in_region; }
 509 };
 510 
 511 class VerifyStrongCodeRootCodeBlobClosure: public CodeBlobClosure {
 512   const HeapRegion* _hr;
 513   bool _failures;
 514 public:
 515   VerifyStrongCodeRootCodeBlobClosure(const HeapRegion* hr) :
 516     _hr(hr), _failures(false) {}
 517 
 518   void do_code_blob(CodeBlob* cb) {
 519     nmethod* nm = (cb == NULL) ? NULL : cb->as_compiled_method()->as_nmethod_or_null();
 520     if (nm != NULL) {
 521       // Verify that the nemthod is live
 522       if (!nm->is_alive()) {
 523         log_error(gc, verify)("region [" PTR_FORMAT "," PTR_FORMAT "] has dead nmethod " PTR_FORMAT " in its strong code roots",
 524                               p2i(_hr->bottom()), p2i(_hr->end()), p2i(nm));
 525         _failures = true;
 526       } else {
 527         VerifyStrongCodeRootOopClosure oop_cl(_hr, nm);
 528         nm->oops_do(&oop_cl);
 529         if (!oop_cl.has_oops_in_region()) {
 530           log_error(gc, verify)("region [" PTR_FORMAT "," PTR_FORMAT "] has nmethod " PTR_FORMAT " in its strong code roots with no pointers into region",
 531                                 p2i(_hr->bottom()), p2i(_hr->end()), p2i(nm));
 532           _failures = true;
 533         } else if (oop_cl.failures()) {
 534           log_error(gc, verify)("region [" PTR_FORMAT "," PTR_FORMAT "] has other failures for nmethod " PTR_FORMAT,
 535                                 p2i(_hr->bottom()), p2i(_hr->end()), p2i(nm));
 536           _failures = true;
 537         }
 538       }
 539     }