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* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
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#ifndef SHARE_RUNTIME_STACKCHUNKFRAMESTREAM_HPP
#define SHARE_RUNTIME_STACKCHUNKFRAMESTREAM_HPP
#include "memory/allocation.hpp"
#include "oops/oopsHierarchy.hpp"
#include "utilities/globalDefinitions.hpp"
#include "utilities/macros.hpp"
class CodeBlob;
class frame;
class ImmutableOopMap;
class RegisterMap;
class VMRegImpl;
typedef VMRegImpl* VMReg;
enum ChunkFrames { CompiledOnly, Mixed };
template <ChunkFrames frame_kind>
class StackChunkFrameStream : public StackObj {
private :
intptr_t* _end;
intptr_t* _sp;
intptr_t* _unextended_sp; // used only when mixed
CodeBlob* _cb;
mutable const ImmutableOopMap* _oopmap;
#ifndef PRODUCT
stackChunkOop _chunk;
int _index;
#endif
#ifdef ASSERT
int _has_stub;
#endif
public :
StackChunkFrameStream() { NOT_PRODUCT(_chunk = nullptr; _index = -1 ;) DEBUG_ONLY(_has_stub = false;) }
inline StackChunkFrameStream(stackChunkOop chunk);
inline StackChunkFrameStream(stackChunkOop chunk, const frame& f);
bool is_done() const { return _sp >= _end; }
// Query
intptr_t* sp() const { return _sp; }
inline address pc() const { return get_pc(); }
inline intptr_t* fp() const ;
inline intptr_t* unextended_sp() const { return frame_kind == ChunkFrames::Mixed ? _unextended_sp : _sp; }
inline address orig_pc() const ;
inline bool is_interpreted() const ;
inline bool is_stub() const ;
inline bool is_compiled() const ;
CodeBlob* cb() const { return _cb; }
const ImmutableOopMap* oopmap() const { if (_oopmap == NULL) get_oopmap(); return _oopmap; }
inline int frame_size() const ;
inline int stack_argsize() const ;
inline int num_oops() const ;
inline void initialize_register_map(RegisterMap* map);
template <typename RegisterMapT> inline void next(RegisterMapT* map, bool stop = false);
template <typename RegisterMapT> inline void update_reg_map(RegisterMapT* map);
void handle_deopted() const ;
inline frame to_frame() const ;
#ifdef ASSERT
bool is_in_frame(void * p) const ;
template <typename RegisterMapT> bool is_in_oops(void * p, const RegisterMapT* map) const ;
#endif
void print_on(outputStream* st) const PRODUCT_RETURN;
private :
inline address get_pc() const ;
inline void get_cb();
inline int interpreter_frame_size() const ;
inline int interpreter_frame_num_oops() const ;
inline int interpreter_frame_stack_argsize() const ;
inline void next_for_interpreter_frame();
inline intptr_t* unextended_sp_for_interpreter_frame() const ;
inline intptr_t* derelativize(int offset) const ;
inline void get_oopmap() const ;
inline void get_oopmap(address pc, int oopmap_slot) const ;
template <typename RegisterMapT> inline void update_reg_map_pd(RegisterMapT* map);
template <typename RegisterMapT>
inline void * reg_to_loc(VMReg reg, const RegisterMapT* map) const ;
void assert_is_interpreted_and_frame_type_mixed() const NOT_DEBUG_RETURN;
public :
template <class OopClosureType, class RegisterMapT>
inline void iterate_oops(OopClosureType* closure, const RegisterMapT* map) const ;
template <class DerivedOopClosureType, class RegisterMapT>
inline void iterate_derived_pointers(DerivedOopClosureType* closure, const RegisterMapT* map) const ;
};
#endif // SHARE_RUNTIME_STACKCHUNKFRAMESTREAM_HPP
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