Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/code/nmethod.cpp
src/share/vm/code/nmethod.cpp
- changeset 1636
- 24128c2ffa87
- parent 1635
- ba263cfb7611
- child 1637
- 5f24d0319e54
equal
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| 1635:ba263cfb7611 | 1636:24128c2ffa87 |
|---|---|
| 1 /* | 1 /* |
| 2 * Copyright 1997-2010 Sun Microsystems, Inc. All Rights Reserved. | 2 * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved. |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | 4 * |
| 5 * This code is free software; you can redistribute it and/or modify it | 5 * This code is free software; you can redistribute it and/or modify it |
| 6 * under the terms of the GNU General Public License version 2 only, as | 6 * under the terms of the GNU General Public License version 2 only, as |
| 7 * published by the Free Software Foundation. | 7 * published by the Free Software Foundation. |
| 590 _compiler = NULL; | 590 _compiler = NULL; |
| 591 // We have no exception handler or deopt handler make the | 591 // We have no exception handler or deopt handler make the |
| 592 // values something that will never match a pc like the nmethod vtable entry | 592 // values something that will never match a pc like the nmethod vtable entry |
| 593 _exception_offset = 0; | 593 _exception_offset = 0; |
| 594 _deoptimize_offset = 0; | 594 _deoptimize_offset = 0; |
| 595 _deoptimize_mh_offset = 0; | |
| 596 _orig_pc_offset = 0; | 595 _orig_pc_offset = 0; |
| 597 #ifdef HAVE_DTRACE_H | 596 #ifdef HAVE_DTRACE_H |
| 598 _trap_offset = 0; | 597 _trap_offset = 0; |
| 599 #endif // def HAVE_DTRACE_H | 598 #endif // def HAVE_DTRACE_H |
| 600 _stub_offset = data_offset(); | 599 _stub_offset = data_offset(); |
| 681 _compiler = NULL; | 680 _compiler = NULL; |
| 682 // We have no exception handler or deopt handler make the | 681 // We have no exception handler or deopt handler make the |
| 683 // values something that will never match a pc like the nmethod vtable entry | 682 // values something that will never match a pc like the nmethod vtable entry |
| 684 _exception_offset = 0; | 683 _exception_offset = 0; |
| 685 _deoptimize_offset = 0; | 684 _deoptimize_offset = 0; |
| 686 _deoptimize_mh_offset = 0; | |
| 687 _trap_offset = offsets->value(CodeOffsets::Dtrace_trap); | 685 _trap_offset = offsets->value(CodeOffsets::Dtrace_trap); |
| 688 _orig_pc_offset = 0; | 686 _orig_pc_offset = 0; |
| 689 _stub_offset = data_offset(); | 687 _stub_offset = data_offset(); |
| 690 _consts_offset = data_offset(); | 688 _consts_offset = data_offset(); |
| 691 _scopes_data_offset = data_offset(); | 689 _scopes_data_offset = data_offset(); |
| 794 _stub_offset = instructions_offset() + code_buffer->total_offset_of(code_buffer->stubs()->start()); | 792 _stub_offset = instructions_offset() + code_buffer->total_offset_of(code_buffer->stubs()->start()); |
| 795 | 793 |
| 796 // Exception handler and deopt handler are in the stub section | 794 // Exception handler and deopt handler are in the stub section |
| 797 _exception_offset = _stub_offset + offsets->value(CodeOffsets::Exceptions); | 795 _exception_offset = _stub_offset + offsets->value(CodeOffsets::Exceptions); |
| 798 _deoptimize_offset = _stub_offset + offsets->value(CodeOffsets::Deopt); | 796 _deoptimize_offset = _stub_offset + offsets->value(CodeOffsets::Deopt); |
| 799 _deoptimize_mh_offset = _stub_offset + offsets->value(CodeOffsets::DeoptMH); | |
| 800 _consts_offset = instructions_offset() + code_buffer->total_offset_of(code_buffer->consts()->start()); | 797 _consts_offset = instructions_offset() + code_buffer->total_offset_of(code_buffer->consts()->start()); |
| 801 _scopes_data_offset = data_offset(); | 798 _scopes_data_offset = data_offset(); |
| 802 _scopes_pcs_offset = _scopes_data_offset + round_to(debug_info->data_size (), oopSize); | 799 _scopes_pcs_offset = _scopes_data_offset + round_to(debug_info->data_size (), oopSize); |
| 803 _dependencies_offset = _scopes_pcs_offset + adjust_pcs_size(debug_info->pcs_size()); | 800 _dependencies_offset = _scopes_pcs_offset + adjust_pcs_size(debug_info->pcs_size()); |
| 804 _handler_table_offset = _dependencies_offset + round_to(dependencies->size_in_bytes (), oopSize); | 801 _handler_table_offset = _dependencies_offset + round_to(dependencies->size_in_bytes (), oopSize); |
| 2032 if (nm == NULL) return; | 2029 if (nm == NULL) return; |
| 2033 Atomic::dec(&nm->_lock_count); | 2030 Atomic::dec(&nm->_lock_count); |
| 2034 guarantee(nm->_lock_count >= 0, "unmatched nmethod lock/unlock"); | 2031 guarantee(nm->_lock_count >= 0, "unmatched nmethod lock/unlock"); |
| 2035 } | 2032 } |
| 2036 | 2033 |
| 2037 | 2034 bool nmethod::is_deopt_pc(address pc) { |
| 2038 // ----------------------------------------------------------------------------- | 2035 bool ret = pc == deopt_handler_begin(); |
| 2039 // nmethod::get_deopt_original_pc | 2036 return ret; |
| 2040 // | |
| 2041 // Return the original PC for the given PC if: | |
| 2042 // (a) the given PC belongs to a nmethod and | |
| 2043 // (b) it is a deopt PC | |
| 2044 address nmethod::get_deopt_original_pc(const frame* fr) { | |
| 2045 if (fr->cb() == NULL) return NULL; | |
| 2046 | |
| 2047 nmethod* nm = fr->cb()->as_nmethod_or_null(); | |
| 2048 if (nm != NULL && nm->is_deopt_pc(fr->pc())) | |
| 2049 return nm->get_original_pc(fr); | |
| 2050 | |
| 2051 return NULL; | |
| 2052 } | 2037 } |
| 2053 | 2038 |
| 2054 | 2039 |
| 2055 // ----------------------------------------------------------------------------- | 2040 // ----------------------------------------------------------------------------- |
| 2056 // MethodHandle | 2041 // MethodHandle |
| 2417 void nmethod::print_nmethod_labels(outputStream* stream, address block_begin) { | 2402 void nmethod::print_nmethod_labels(outputStream* stream, address block_begin) { |
| 2418 if (block_begin == entry_point()) stream->print_cr("[Entry Point]"); | 2403 if (block_begin == entry_point()) stream->print_cr("[Entry Point]"); |
| 2419 if (block_begin == verified_entry_point()) stream->print_cr("[Verified Entry Point]"); | 2404 if (block_begin == verified_entry_point()) stream->print_cr("[Verified Entry Point]"); |
| 2420 if (block_begin == exception_begin()) stream->print_cr("[Exception Handler]"); | 2405 if (block_begin == exception_begin()) stream->print_cr("[Exception Handler]"); |
| 2421 if (block_begin == stub_begin()) stream->print_cr("[Stub Code]"); | 2406 if (block_begin == stub_begin()) stream->print_cr("[Stub Code]"); |
| 2422 if (block_begin == deopt_handler_begin()) stream->print_cr("[Deopt Handler Code]"); | |
| 2423 if (block_begin == deopt_mh_handler_begin()) stream->print_cr("[Deopt MH Handler Code]"); | |
| 2424 if (block_begin == consts_begin()) stream->print_cr("[Constants]"); | 2407 if (block_begin == consts_begin()) stream->print_cr("[Constants]"); |
| 2425 if (block_begin == entry_point()) { | 2408 if (block_begin == entry_point()) { |
| 2426 methodHandle m = method(); | 2409 methodHandle m = method(); |
| 2427 if (m.not_null()) { | 2410 if (m.not_null()) { |
| 2428 stream->print(" # "); | 2411 stream->print(" # "); |
