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comparison src/share/vm/oops/instanceKlass.cpp @ 989:148e5441d916

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6863023: need non-perm oops in code cache for JSR 292 Summary: Make a special root-list for those few nmethods which might contain non-perm oops. Reviewed-by: twisti, kvn, never, jmasa, ysr
author jrose
date Tue, 15 Sep 2009 21:53:47 -0700
parents 1413494da700
children 54b3b351d6f9
comparison
equal deleted inserted replaced
987:00977607da34 989:148e5441d916
2023 // only one compilation can be active 2023 // only one compilation can be active
2024 NEEDS_CLEANUP 2024 NEEDS_CLEANUP
2025 // This is a short non-blocking critical region, so the no safepoint check is ok. 2025 // This is a short non-blocking critical region, so the no safepoint check is ok.
2026 OsrList_lock->lock_without_safepoint_check(); 2026 OsrList_lock->lock_without_safepoint_check();
2027 assert(n->is_osr_method(), "wrong kind of nmethod"); 2027 assert(n->is_osr_method(), "wrong kind of nmethod");
2028 n->set_link(osr_nmethods_head()); 2028 n->set_osr_link(osr_nmethods_head());
2029 set_osr_nmethods_head(n); 2029 set_osr_nmethods_head(n);
2030 // Remember to unlock again 2030 // Remember to unlock again
2031 OsrList_lock->unlock(); 2031 OsrList_lock->unlock();
2032 } 2032 }
2033 2033
2039 nmethod* last = NULL; 2039 nmethod* last = NULL;
2040 nmethod* cur = osr_nmethods_head(); 2040 nmethod* cur = osr_nmethods_head();
2041 // Search for match 2041 // Search for match
2042 while(cur != NULL && cur != n) { 2042 while(cur != NULL && cur != n) {
2043 last = cur; 2043 last = cur;
2044 cur = cur->link(); 2044 cur = cur->osr_link();
2045 } 2045 }
2046 if (cur == n) { 2046 if (cur == n) {
2047 if (last == NULL) { 2047 if (last == NULL) {
2048 // Remove first element 2048 // Remove first element
2049 set_osr_nmethods_head(osr_nmethods_head()->link()); 2049 set_osr_nmethods_head(osr_nmethods_head()->osr_link());
2050 } else { 2050 } else {
2051 last->set_link(cur->link()); 2051 last->set_osr_link(cur->osr_link());
2052 } 2052 }
2053 } 2053 }
2054 n->set_link(NULL); 2054 n->set_osr_link(NULL);
2055 // Remember to unlock again 2055 // Remember to unlock again
2056 OsrList_lock->unlock(); 2056 OsrList_lock->unlock();
2057 } 2057 }
2058 2058
2059 nmethod* instanceKlass::lookup_osr_nmethod(const methodOop m, int bci) const { 2059 nmethod* instanceKlass::lookup_osr_nmethod(const methodOop m, int bci) const {
2066 (bci == InvocationEntryBci || osr->osr_entry_bci() == bci)) { 2066 (bci == InvocationEntryBci || osr->osr_entry_bci() == bci)) {
2067 // Found a match - return it. 2067 // Found a match - return it.
2068 OsrList_lock->unlock(); 2068 OsrList_lock->unlock();
2069 return osr; 2069 return osr;
2070 } 2070 }
2071 osr = osr->link(); 2071 osr = osr->osr_link();
2072 } 2072 }
2073 OsrList_lock->unlock(); 2073 OsrList_lock->unlock();
2074 return NULL; 2074 return NULL;
2075 } 2075 }
2076 2076