Mercurial > hg > graal-jvmci-8
comparison src/share/vm/oops/methodOop.hpp @ 977:74a5db69c1fe
6419370: 4/4 new jmethodID code has tiny holes in synchronization
Summary: Fix races in jmethodID cache and JNI itable index cache.
Reviewed-by: ikrylov, acorn
| author | dcubed |
|---|---|
| date | Mon, 21 Sep 2009 09:30:24 -0600 |
| parents | 75596850f863 |
| children | dd57230ba8fe |
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| 975:83c29a26f67c | 977:74a5db69c1fe |
|---|---|
| 553 static methodHandle clone_with_new_data(methodHandle m, u_char* new_code, int new_code_length, | 553 static methodHandle clone_with_new_data(methodHandle m, u_char* new_code, int new_code_length, |
| 554 u_char* new_compressed_linenumber_table, int new_compressed_linenumber_size, TRAPS); | 554 u_char* new_compressed_linenumber_table, int new_compressed_linenumber_size, TRAPS); |
| 555 | 555 |
| 556 // Get this method's jmethodID -- allocate if it doesn't exist | 556 // Get this method's jmethodID -- allocate if it doesn't exist |
| 557 jmethodID jmethod_id() { methodHandle this_h(this); | 557 jmethodID jmethod_id() { methodHandle this_h(this); |
| 558 return instanceKlass::jmethod_id_for_impl(method_holder(), this_h); } | 558 return instanceKlass::get_jmethod_id(method_holder(), this_h); } |
| 559 | 559 |
| 560 // Lookup the jmethodID for this method. Return NULL if not found. | 560 // Lookup the jmethodID for this method. Return NULL if not found. |
| 561 // NOTE that this function can be called from a signal handler | 561 // NOTE that this function can be called from a signal handler |
| 562 // (see AsyncGetCallTrace support for Forte Analyzer) and this | 562 // (see AsyncGetCallTrace support for Forte Analyzer) and this |
| 563 // needs to be async-safe. No allocation should be done and | 563 // needs to be async-safe. No allocation should be done and |