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8014024: NPG: keep compiled ic methods from being deallocated in redefine classes

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Walk the compiledIC relocation records to keep Method* from being deallocated.

Reviewed-by: dlong, kvn
This commit is contained in:
Coleen Phillimore 2013-05-07 18:51:31 -04:00
parent 8320660846
commit 32df114e2a
1 changed files with 14 additions and 0 deletions
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14
hotspot/src/share/vm/code/nmethod.cpp
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@ -1794,6 +1794,19 @@ void nmethod::metadata_do(void f(Metadata*)) {
Metadata* md = r->metadata_value();
f(md);
}
} else if (iter.type() == relocInfo::virtual_call_type) {
// Check compiledIC holders associated with this nmethod
CompiledIC *ic = CompiledIC_at(iter.reloc());
if (ic->is_icholder_call()) {
CompiledICHolder* cichk = ic->cached_icholder();
f(cichk->holder_method());
f(cichk->holder_klass());
} else {
Metadata* ic_oop = ic->cached_metadata();
if (ic_oop != NULL) {
f(ic_oop);
}
}
}
}
}
@ -1804,6 +1817,7 @@ void nmethod::metadata_do(void f(Metadata*)) {
Metadata* md = *p;
f(md);
}
// Call function Method*, not embedded in these other places.
if (_method != NULL) f(_method);
}