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comparison src/share/vm/oops/constantPool.hpp @ 10151:15a99ca4ee34

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8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands Summary: References from operands to CP entries and back must be correct after CP merge Reviewed-by: coleenp, twisti Contributed-by: serguei.spitsyn@oracle.com
author sspitsyn
date Thu, 25 Apr 2013 03:58:53 -0700
parents f16e75e0cf11
children c115fac239eb
comparison
equal deleted inserted replaced
10150:d66a24adbe3f 10151:15a99ca4ee34
565 enum { 565 enum {
566 _indy_bsm_offset = 0, // CONSTANT_MethodHandle bsm 566 _indy_bsm_offset = 0, // CONSTANT_MethodHandle bsm
567 _indy_argc_offset = 1, // u2 argc 567 _indy_argc_offset = 1, // u2 argc
568 _indy_argv_offset = 2 // u2 argv[argc] 568 _indy_argv_offset = 2 // u2 argv[argc]
569 }; 569 };
570
571 // These functions are used in RedefineClasses for CP merge
572
573 int operand_offset_at(int bootstrap_specifier_index) {
574 assert(0 <= bootstrap_specifier_index &&
575 bootstrap_specifier_index < operand_array_length(operands()),
576 "Corrupted CP operands");
577 return operand_offset_at(operands(), bootstrap_specifier_index);
578 }
579 int operand_bootstrap_method_ref_index_at(int bootstrap_specifier_index) {
580 int offset = operand_offset_at(bootstrap_specifier_index);
581 return operands()->at(offset + _indy_bsm_offset);
582 }
583 int operand_argument_count_at(int bootstrap_specifier_index) {
584 int offset = operand_offset_at(bootstrap_specifier_index);
585 int argc = operands()->at(offset + _indy_argc_offset);
586 return argc;
587 }
588 int operand_argument_index_at(int bootstrap_specifier_index, int j) {
589 int offset = operand_offset_at(bootstrap_specifier_index);
590 return operands()->at(offset + _indy_argv_offset + j);
591 }
592 int operand_next_offset_at(int bootstrap_specifier_index) {
593 int offset = operand_offset_at(bootstrap_specifier_index) + _indy_argv_offset
594 + operand_argument_count_at(bootstrap_specifier_index);
595 return offset;
596 }
597 // Compare a bootsrap specifier in the operands arrays
598 bool compare_operand_to(int bootstrap_specifier_index1, constantPoolHandle cp2,
599 int bootstrap_specifier_index2, TRAPS);
600 // Find a bootsrap specifier in the operands array
601 int find_matching_operand(int bootstrap_specifier_index, constantPoolHandle search_cp,
602 int operands_cur_len, TRAPS);
603 // Resize the operands array with delta_len and delta_size
604 void resize_operands(int delta_len, int delta_size, TRAPS);
605 // Extend the operands array with the length and size of the ext_cp operands
606 void extend_operands(constantPoolHandle ext_cp, TRAPS);
607 // Shrink the operands array to a smaller array with new_len length
608 void shrink_operands(int new_len, TRAPS);
609
610
570 int invoke_dynamic_bootstrap_method_ref_index_at(int which) { 611 int invoke_dynamic_bootstrap_method_ref_index_at(int which) {
571 assert(tag_at(which).is_invoke_dynamic(), "Corrupted constant pool"); 612 assert(tag_at(which).is_invoke_dynamic(), "Corrupted constant pool");
572 int op_base = invoke_dynamic_operand_base(which); 613 int op_base = invoke_dynamic_operand_base(which);
573 return operands()->at(op_base + _indy_bsm_offset); 614 return operands()->at(op_base + _indy_bsm_offset);
574 } 615 }