1.1 --- a/src/share/vm/oops/methodOop.cpp Wed Mar 12 18:06:50 2008 -0700
1.2 +++ b/src/share/vm/oops/methodOop.cpp Wed Mar 12 18:07:46 2008 -0700
1.3 @@ -765,6 +765,28 @@
1.4 }
1.5
1.6
1.7 +// give advice about whether this methodOop should be cached or not
1.8 +bool methodOopDesc::should_not_be_cached() const {
1.9 + if (is_old()) {
1.10 + // This method has been redefined. It is either EMCP or obsolete
1.11 + // and we don't want to cache it because that would pin the method
1.12 + // down and prevent it from being collectible if and when it
1.13 + // finishes executing.
1.14 + return true;
1.15 + }
1.16 +
1.17 + if (mark()->should_not_be_cached()) {
1.18 + // It is either not safe or not a good idea to cache this
1.19 + // method at this time because of the state of the embedded
1.20 + // markOop. See markOop.cpp for the gory details.
1.21 + return true;
1.22 + }
1.23 +
1.24 + // caching this method should be just fine
1.25 + return false;
1.26 +}
1.27 +
1.28 +
1.29 methodHandle methodOopDesc:: clone_with_new_data(methodHandle m, u_char* new_code, int new_code_length,
1.30 u_char* new_compressed_linenumber_table, int new_compressed_linenumber_size, TRAPS) {
1.31 // Code below does not work for native methods - they should never get rewritten anyway
