608 // only for C2, but done for C1 as well) we need a callee-saved oop
609 // map and therefore have to make these stubs into RuntimeStubs
610 // rather than BufferBlobs. If the compiler needs all registers to
611 // be preserved between the fault point and the exception handler
612 // then it must assume responsibility for that in
613 // AbstractCompiler::continuation_for_implicit_null_exception or
614 // continuation_for_implicit_division_by_zero_exception. All other
615 // implicit exceptions (e.g., NullPointerException or
616 // AbstractMethodError on entry) are either at call sites or
617 // otherwise assume that stack unwinding will be initiated, so
618 // caller saved registers were assumed volatile in the compiler.
619 address generate_throw_exception(const char* name,
620 address runtime_entry,
621 Register arg1 = noreg,
622 Register arg2 = noreg);
623
624 // shared exception handler for FFM upcall stubs
625 address generate_upcall_stub_exception_handler();
626 address generate_upcall_stub_load_target();
627
628 // Specialized stub implementations for UseSecondarySupersTable.
629 void generate_lookup_secondary_supers_table_stub();
630
631 // Slow path implementation for UseSecondarySupersTable.
632 address generate_lookup_secondary_supers_table_slow_path_stub();
633
634 void create_control_words();
635
636 // Initialization
637 void generate_preuniverse_stubs();
638 void generate_initial_stubs();
639 void generate_continuation_stubs();
640 void generate_compiler_stubs();
641 void generate_final_stubs();
642
643 public:
644 StubGenerator(CodeBuffer* code, StubGenBlobId blob_id);
645 };
646
647 #endif // CPU_X86_STUBGENERATOR_X86_64_HPP
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608 // only for C2, but done for C1 as well) we need a callee-saved oop
609 // map and therefore have to make these stubs into RuntimeStubs
610 // rather than BufferBlobs. If the compiler needs all registers to
611 // be preserved between the fault point and the exception handler
612 // then it must assume responsibility for that in
613 // AbstractCompiler::continuation_for_implicit_null_exception or
614 // continuation_for_implicit_division_by_zero_exception. All other
615 // implicit exceptions (e.g., NullPointerException or
616 // AbstractMethodError on entry) are either at call sites or
617 // otherwise assume that stack unwinding will be initiated, so
618 // caller saved registers were assumed volatile in the compiler.
619 address generate_throw_exception(const char* name,
620 address runtime_entry,
621 Register arg1 = noreg,
622 Register arg2 = noreg);
623
624 // shared exception handler for FFM upcall stubs
625 address generate_upcall_stub_exception_handler();
626 address generate_upcall_stub_load_target();
627
628 // interpreter or compiled code marshalling registers to/from inline type instance
629 address generate_return_value_stub(address destination, const char* name, bool has_res);
630
631 // Specialized stub implementations for UseSecondarySupersTable.
632 void generate_lookup_secondary_supers_table_stub();
633
634 // Slow path implementation for UseSecondarySupersTable.
635 address generate_lookup_secondary_supers_table_slow_path_stub();
636
637 void create_control_words();
638
639 // Initialization
640 void generate_preuniverse_stubs();
641 void generate_initial_stubs();
642 void generate_continuation_stubs();
643 void generate_compiler_stubs();
644 void generate_final_stubs();
645
646 public:
647 StubGenerator(CodeBuffer* code, StubGenBlobId blob_id);
648 };
649
650 #endif // CPU_X86_STUBGENERATOR_X86_64_HPP
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