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8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes

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Change InstanceKlass::_source_file_name and _generic_signature to u2 fields.

Reviewed-by: coleenp, iklam
This commit is contained in:
Jiangli Zhou 2013-08-19 14:59:54 -04:00
parent 2c28ff340a
commit 553b498f51
7 changed files with 67 additions and 42 deletions
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17
hotspot/src/share/vm/prims/jvmtiRedefineClasses.cpp
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@ -1554,6 +1554,20 @@ bool VM_RedefineClasses::rewrite_cp_refs(instanceKlassHandle scratch_class,
return false;
}
// rewrite sourc file name index:
u2 source_file_name_idx = scratch_class->source_file_name_index();
if (source_file_name_idx != 0) {
u2 new_source_file_name_idx = find_new_index(source_file_name_idx);
scratch_class->set_source_file_name_index(new_source_file_name_idx);
}
// rewrite class generic signature index:
u2 generic_signature_index = scratch_class->generic_signature_index();
if (generic_signature_index != 0) {
u2 new_generic_signature_index = find_new_index(generic_signature_index);
scratch_class->set_generic_signature_index(new_generic_signature_index);
}
return true;
} // end rewrite_cp_refs()
@ -3370,7 +3384,8 @@ void VM_RedefineClasses::redefine_single_class(jclass the_jclass,
// Leave arrays of jmethodIDs and itable index cache unchanged
// Copy the "source file name" attribute from new class version
the_class->set_source_file_name(scratch_class->source_file_name());
the_class->set_source_file_name_index(
scratch_class->source_file_name_index());
// Copy the "source debug extension" attribute from new class version
the_class->set_source_debug_extension(