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6826736: CMS: core dump with -XX:+UseCompressedOops

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Fix deoptimization code and OopMapSet::all_do() to check for oop = narrow_oop_base.

Reviewed-by: jcoomes, phh, ysr, never
This commit is contained in:
Vladimir Kozlov 2009-07-22 15:48:51 -07:00
parent db41917a7e
commit b0f75657c5
5 changed files with 111 additions and 2 deletions
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12
hotspot/src/share/vm/runtime/stackValue.cpp
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@ -104,7 +104,17 @@ StackValue* StackValue::create_stack_value(const frame* fr, const RegisterMap* r
}
#endif
case Location::oop: {
Handle h(*(oop *)value_addr); // Wrap a handle around the oop
oop val = *(oop *)value_addr;
#ifdef _LP64
if (Universe::is_narrow_oop_base(val)) {
// Compiled code may produce decoded oop = narrow_oop_base
// when a narrow oop implicit null check is used.
// The narrow_oop_base could be NULL or be the address
// of the page below heap. Use NULL value for both cases.
val = (oop)NULL;
}
#endif
Handle h(val); // Wrap a handle around the oop
return new StackValue(h);
}
case Location::addr: {