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8148195: Some InstanceKlass and MethodCounters fields can be excluded when JVMTI is not supported

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Removed "previous version", "cached class file",  and breakpoint related fields and code when JVMTI is not supported

Reviewed-by: coleenp, sspitsyn
This commit is contained in:
Chris Plummer 2016-04-21 20:49:11 -07:00
parent d1b219ba3c
commit 7cd3700010
10 changed files with 103 additions and 18 deletions
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17
hotspot/src/share/vm/oops/method.hpp
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@ -195,8 +195,18 @@ class Method : public Metadata {
}
// JVMTI breakpoints
#if !INCLUDE_JVMTI
Bytecodes::Code orig_bytecode_at(int bci) const {
ShouldNotReachHere();
return Bytecodes::_shouldnotreachhere;
}
void set_orig_bytecode_at(int bci, Bytecodes::Code code) {
ShouldNotReachHere();
};
u2 number_of_breakpoints() const {return 0;}
#else // !INCLUDE_JVMTI
Bytecodes::Code orig_bytecode_at(int bci) const;
void set_orig_bytecode_at(int bci, Bytecodes::Code code);
void set_orig_bytecode_at(int bci, Bytecodes::Code code);
void set_breakpoint(int bci);
void clear_breakpoint(int bci);
void clear_all_breakpoints();
@ -229,6 +239,7 @@ class Method : public Metadata {
mcs->clear_number_of_breakpoints();
}
}
#endif // !INCLUDE_JVMTI
// index into InstanceKlass methods() array
// note: also used by jfr
@ -1046,6 +1057,8 @@ class CompressedLineNumberReadStream: public CompressedReadStream {
};
#if INCLUDE_JVMTI
/// Fast Breakpoints.
// If this structure gets more complicated (because bpts get numerous),
@ -1090,6 +1103,8 @@ class BreakpointInfo : public CHeapObj<mtClass> {
void clear(Method* method);
};
#endif // INCLUDE_JVMTI
// Utility class for access exception handlers
class ExceptionTable : public StackObj {
private: