Mercurial > hg > truffle
comparison src/share/vm/code/nmethod.hpp @ 1201:24128c2ffa87
6921339: backout 6917766
Reviewed-by: mr
author | twisti |
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date | Fri, 29 Jan 2010 08:33:24 -0800 |
parents | ba263cfb7611 |
children | 5f24d0319e54 |
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1200:ba263cfb7611 | 1201:24128c2ffa87 |
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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. |
143 | 143 |
144 AbstractCompiler* _compiler; // The compiler which compiled this nmethod | 144 AbstractCompiler* _compiler; // The compiler which compiled this nmethod |
145 | 145 |
146 // Offsets for different nmethod parts | 146 // Offsets for different nmethod parts |
147 int _exception_offset; | 147 int _exception_offset; |
148 // All deoptee's will resume execution at this location described by | 148 // All deoptee's will resume execution at this location described by this offset |
149 // this offset. | |
150 int _deoptimize_offset; | 149 int _deoptimize_offset; |
151 // All deoptee's at a MethodHandle call site will resume execution | |
152 // at this location described by this offset. | |
153 int _deoptimize_mh_offset; | |
154 #ifdef HAVE_DTRACE_H | 150 #ifdef HAVE_DTRACE_H |
155 int _trap_offset; | 151 int _trap_offset; |
156 #endif // def HAVE_DTRACE_H | 152 #endif // def HAVE_DTRACE_H |
157 int _stub_offset; | 153 int _stub_offset; |
158 int _consts_offset; | 154 int _consts_offset; |
331 | 327 |
332 bool is_compiled_by_c1() const; | 328 bool is_compiled_by_c1() const; |
333 bool is_compiled_by_c2() const; | 329 bool is_compiled_by_c2() const; |
334 | 330 |
335 // boundaries for different parts | 331 // boundaries for different parts |
336 address code_begin () const { return _entry_point; } | 332 address code_begin () const { return _entry_point; } |
337 address code_end () const { return header_begin() + _stub_offset ; } | 333 address code_end () const { return header_begin() + _stub_offset ; } |
338 address exception_begin () const { return header_begin() + _exception_offset ; } | 334 address exception_begin () const { return header_begin() + _exception_offset ; } |
339 address deopt_handler_begin () const { return header_begin() + _deoptimize_offset ; } | 335 address deopt_handler_begin() const { return header_begin() + _deoptimize_offset ; } |
340 address deopt_mh_handler_begin() const { return header_begin() + _deoptimize_mh_offset ; } | 336 address stub_begin () const { return header_begin() + _stub_offset ; } |
341 address stub_begin () const { return header_begin() + _stub_offset ; } | 337 address stub_end () const { return header_begin() + _consts_offset ; } |
342 address stub_end () const { return header_begin() + _consts_offset ; } | 338 address consts_begin () const { return header_begin() + _consts_offset ; } |
343 address consts_begin () const { return header_begin() + _consts_offset ; } | 339 address consts_end () const { return header_begin() + _scopes_data_offset ; } |
344 address consts_end () const { return header_begin() + _scopes_data_offset ; } | 340 address scopes_data_begin () const { return header_begin() + _scopes_data_offset ; } |
345 address scopes_data_begin () const { return header_begin() + _scopes_data_offset ; } | 341 address scopes_data_end () const { return header_begin() + _scopes_pcs_offset ; } |
346 address scopes_data_end () const { return header_begin() + _scopes_pcs_offset ; } | 342 PcDesc* scopes_pcs_begin () const { return (PcDesc*)(header_begin() + _scopes_pcs_offset ); } |
347 PcDesc* scopes_pcs_begin () const { return (PcDesc*)(header_begin() + _scopes_pcs_offset ); } | 343 PcDesc* scopes_pcs_end () const { return (PcDesc*)(header_begin() + _dependencies_offset); } |
348 PcDesc* scopes_pcs_end () const { return (PcDesc*)(header_begin() + _dependencies_offset) ; } | 344 address dependencies_begin () const { return header_begin() + _dependencies_offset ; } |
349 address dependencies_begin () const { return header_begin() + _dependencies_offset ; } | 345 address dependencies_end () const { return header_begin() + _handler_table_offset ; } |
350 address dependencies_end () const { return header_begin() + _handler_table_offset ; } | 346 address handler_table_begin() const { return header_begin() + _handler_table_offset ; } |
351 address handler_table_begin () const { return header_begin() + _handler_table_offset ; } | 347 address handler_table_end () const { return header_begin() + _nul_chk_table_offset ; } |
352 address handler_table_end () const { return header_begin() + _nul_chk_table_offset ; } | 348 address nul_chk_table_begin() const { return header_begin() + _nul_chk_table_offset ; } |
353 address nul_chk_table_begin () const { return header_begin() + _nul_chk_table_offset ; } | 349 address nul_chk_table_end () const { return header_begin() + _nmethod_end_offset ; } |
354 address nul_chk_table_end () const { return header_begin() + _nmethod_end_offset ; } | |
355 | 350 |
356 int code_size () const { return code_end () - code_begin (); } | 351 int code_size () const { return code_end () - code_begin (); } |
357 int stub_size () const { return stub_end () - stub_begin (); } | 352 int stub_size () const { return stub_end () - stub_begin (); } |
358 int consts_size () const { return consts_end () - consts_begin (); } | 353 int consts_size () const { return consts_end () - consts_begin (); } |
359 int scopes_data_size () const { return scopes_data_end () - scopes_data_begin (); } | 354 int scopes_data_size () const { return scopes_data_end () - scopes_data_begin (); } |
518 ScopeDesc* scope_desc_at(address pc); | 513 ScopeDesc* scope_desc_at(address pc); |
519 | 514 |
520 private: | 515 private: |
521 ScopeDesc* scope_desc_in(address begin, address end); | 516 ScopeDesc* scope_desc_in(address begin, address end); |
522 | 517 |
523 address* orig_pc_addr(const frame* fr) { return (address*) ((address)fr->unextended_sp() + _orig_pc_offset); } | 518 address* orig_pc_addr(const frame* fr ) { return (address*) ((address)fr->unextended_sp() + _orig_pc_offset); } |
524 | 519 |
525 PcDesc* find_pc_desc_internal(address pc, bool approximate); | 520 PcDesc* find_pc_desc_internal(address pc, bool approximate); |
526 | 521 |
527 PcDesc* find_pc_desc(address pc, bool approximate) { | 522 PcDesc* find_pc_desc(address pc, bool approximate) { |
528 PcDesc* desc = _pc_desc_cache.last_pc_desc(); | 523 PcDesc* desc = _pc_desc_cache.last_pc_desc(); |
541 public: | 536 public: |
542 // copying of debugging information | 537 // copying of debugging information |
543 void copy_scopes_pcs(PcDesc* pcs, int count); | 538 void copy_scopes_pcs(PcDesc* pcs, int count); |
544 void copy_scopes_data(address buffer, int size); | 539 void copy_scopes_data(address buffer, int size); |
545 | 540 |
546 // Deopt | 541 // deopt |
547 // Return true is the PC is one would expect if the frame is being deopted. | 542 // return true is the pc is one would expect if the frame is being deopted. |
548 bool is_deopt_pc (address pc) { return is_deopt_entry(pc) || is_deopt_mh_entry(pc); } | 543 bool is_deopt_pc(address pc); |
549 bool is_deopt_entry (address pc) { return pc == deopt_handler_begin(); } | |
550 bool is_deopt_mh_entry(address pc) { return pc == deopt_mh_handler_begin(); } | |
551 // Accessor/mutator for the original pc of a frame before a frame was deopted. | 544 // Accessor/mutator for the original pc of a frame before a frame was deopted. |
552 address get_original_pc(const frame* fr) { return *orig_pc_addr(fr); } | 545 address get_original_pc(const frame* fr) { return *orig_pc_addr(fr); } |
553 void set_original_pc(const frame* fr, address pc) { *orig_pc_addr(fr) = pc; } | 546 void set_original_pc(const frame* fr, address pc) { *orig_pc_addr(fr) = pc; } |
554 | |
555 static address get_deopt_original_pc(const frame* fr); | |
556 | 547 |
557 // MethodHandle | 548 // MethodHandle |
558 bool is_method_handle_return(address return_pc); | 549 bool is_method_handle_return(address return_pc); |
559 | 550 |
560 // jvmti support: | 551 // jvmti support: |