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comparison src/share/vm/code/nmethod.cpp @ 10253:4674e409a9e6

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8014024: NPG: keep compiled ic methods from being deallocated in redefine classes Summary: Walk the compiledIC relocation records to keep Method* from being deallocated. Reviewed-by: dlong, kvn
author coleenp
date Tue, 07 May 2013 18:51:31 -0400
parents a7fb14888912
children 28e5aed7f3a6
comparison
equal deleted inserted replaced
10252:712a1e9c91f3 10253:4674e409a9e6
1792 "metadata must be found in exactly one place"); 1792 "metadata must be found in exactly one place");
1793 if (r->metadata_is_immediate() && r->metadata_value() != NULL) { 1793 if (r->metadata_is_immediate() && r->metadata_value() != NULL) {
1794 Metadata* md = r->metadata_value(); 1794 Metadata* md = r->metadata_value();
1795 f(md); 1795 f(md);
1796 } 1796 }
1797 } else if (iter.type() == relocInfo::virtual_call_type) {
1798 // Check compiledIC holders associated with this nmethod
1799 CompiledIC *ic = CompiledIC_at(iter.reloc());
1800 if (ic->is_icholder_call()) {
1801 CompiledICHolder* cichk = ic->cached_icholder();
1802 f(cichk->holder_method());
1803 f(cichk->holder_klass());
1804 } else {
1805 Metadata* ic_oop = ic->cached_metadata();
1806 if (ic_oop != NULL) {
1807 f(ic_oop);
1808 }
1809 }
1797 } 1810 }
1798 } 1811 }
1799 } 1812 }
1800 1813
1801 // Visit the metadata section 1814 // Visit the metadata section
1802 for (Metadata** p = metadata_begin(); p < metadata_end(); p++) { 1815 for (Metadata** p = metadata_begin(); p < metadata_end(); p++) {
1803 if (*p == Universe::non_oop_word() || *p == NULL) continue; // skip non-oops 1816 if (*p == Universe::non_oop_word() || *p == NULL) continue; // skip non-oops
1804 Metadata* md = *p; 1817 Metadata* md = *p;
1805 f(md); 1818 f(md);
1806 } 1819 }
1820
1807 // Call function Method*, not embedded in these other places. 1821 // Call function Method*, not embedded in these other places.
1808 if (_method != NULL) f(_method); 1822 if (_method != NULL) f(_method);
1809 } 1823 }
1810 1824
1811 1825