Mercurial > hg > graal-compiler

comparison src/share/vm/code/nmethod.hpp @ 1204:18a389214829

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
6921352: JSR 292 needs its own deopt handler Summary: We need to introduce a new MH deopt handler so we can easily determine if the deopt happened at a MH call site or not. Reviewed-by: never, jrose
author twisti
date Mon, 01 Feb 2010 19:29:46 +0100
parents 5f24d0319e54
children 9f5b60a14736
comparison
equal deleted inserted replaced
1203:844a9d73ec22 1204:18a389214829
1 /* 1 /*
2 * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved. 2 * Copyright 1997-2010 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.
146 146
147 AbstractCompiler* _compiler; // The compiler which compiled this nmethod 147 AbstractCompiler* _compiler; // The compiler which compiled this nmethod
148 148
149 // Offsets for different nmethod parts 149 // Offsets for different nmethod parts
150 int _exception_offset; 150 int _exception_offset;
151 // All deoptee's will resume execution at this location described by this offset 151 // All deoptee's will resume execution at this location described by
152 // this offset.
152 int _deoptimize_offset; 153 int _deoptimize_offset;
154 // All deoptee's at a MethodHandle call site will resume execution
155 // at this location described by this offset.
156 int _deoptimize_mh_offset;
153 #ifdef HAVE_DTRACE_H 157 #ifdef HAVE_DTRACE_H
154 int _trap_offset; 158 int _trap_offset;
155 #endif // def HAVE_DTRACE_H 159 #endif // def HAVE_DTRACE_H
156 int _stub_offset; 160 int _stub_offset;
157 int _consts_offset; 161 int _consts_offset;
330 334
331 bool is_compiled_by_c1() const; 335 bool is_compiled_by_c1() const;
332 bool is_compiled_by_c2() const; 336 bool is_compiled_by_c2() const;
333 337
334 // boundaries for different parts 338 // boundaries for different parts
335 address code_begin () const { return _entry_point; } 339 address code_begin () const { return _entry_point; }
336 address code_end () const { return header_begin() + _stub_offset ; } 340 address code_end () const { return header_begin() + _stub_offset ; }
337 address exception_begin () const { return header_begin() + _exception_offset ; } 341 address exception_begin () const { return header_begin() + _exception_offset ; }
338 address deopt_handler_begin() const { return header_begin() + _deoptimize_offset ; } 342 address deopt_handler_begin () const { return header_begin() + _deoptimize_offset ; }
339 address stub_begin () const { return header_begin() + _stub_offset ; } 343 address deopt_mh_handler_begin() const { return header_begin() + _deoptimize_mh_offset ; }
340 address stub_end () const { return header_begin() + _consts_offset ; } 344 address stub_begin () const { return header_begin() + _stub_offset ; }
341 address consts_begin () const { return header_begin() + _consts_offset ; } 345 address stub_end () const { return header_begin() + _consts_offset ; }
342 address consts_end () const { return header_begin() + _scopes_data_offset ; } 346 address consts_begin () const { return header_begin() + _consts_offset ; }
343 address scopes_data_begin () const { return header_begin() + _scopes_data_offset ; } 347 address consts_end () const { return header_begin() + _scopes_data_offset ; }
344 address scopes_data_end () const { return header_begin() + _scopes_pcs_offset ; } 348 address scopes_data_begin () const { return header_begin() + _scopes_data_offset ; }
345 PcDesc* scopes_pcs_begin () const { return (PcDesc*)(header_begin() + _scopes_pcs_offset ); } 349 address scopes_data_end () const { return header_begin() + _scopes_pcs_offset ; }
346 PcDesc* scopes_pcs_end () const { return (PcDesc*)(header_begin() + _dependencies_offset); } 350 PcDesc* scopes_pcs_begin () const { return (PcDesc*)(header_begin() + _scopes_pcs_offset ); }
347 address dependencies_begin () const { return header_begin() + _dependencies_offset ; } 351 PcDesc* scopes_pcs_end () const { return (PcDesc*)(header_begin() + _dependencies_offset) ; }
348 address dependencies_end () const { return header_begin() + _handler_table_offset ; } 352 address dependencies_begin () const { return header_begin() + _dependencies_offset ; }
349 address handler_table_begin() const { return header_begin() + _handler_table_offset ; } 353 address dependencies_end () const { return header_begin() + _handler_table_offset ; }
350 address handler_table_end () const { return header_begin() + _nul_chk_table_offset ; } 354 address handler_table_begin () const { return header_begin() + _handler_table_offset ; }
351 address nul_chk_table_begin() const { return header_begin() + _nul_chk_table_offset ; } 355 address handler_table_end () const { return header_begin() + _nul_chk_table_offset ; }
352 address nul_chk_table_end () const { return header_begin() + _nmethod_end_offset ; } 356 address nul_chk_table_begin () const { return header_begin() + _nul_chk_table_offset ; }
357 address nul_chk_table_end () const { return header_begin() + _nmethod_end_offset ; }
353 358
354 int code_size () const { return code_end () - code_begin (); } 359 int code_size () const { return code_end () - code_begin (); }
355 int stub_size () const { return stub_end () - stub_begin (); } 360 int stub_size () const { return stub_end () - stub_begin (); }
356 int consts_size () const { return consts_end () - consts_begin (); } 361 int consts_size () const { return consts_end () - consts_begin (); }
357 int scopes_data_size () const { return scopes_data_end () - scopes_data_begin (); } 362 int scopes_data_size () const { return scopes_data_end () - scopes_data_begin (); }
522 ScopeDesc* scope_desc_at(address pc); 527 ScopeDesc* scope_desc_at(address pc);
523 528
524 private: 529 private:
525 ScopeDesc* scope_desc_in(address begin, address end); 530 ScopeDesc* scope_desc_in(address begin, address end);
526 531
527 address* orig_pc_addr(const frame* fr ) { return (address*) ((address)fr->unextended_sp() + _orig_pc_offset); } 532 address* orig_pc_addr(const frame* fr) { return (address*) ((address)fr->unextended_sp() + _orig_pc_offset); }
528 533
529 PcDesc* find_pc_desc_internal(address pc, bool approximate); 534 PcDesc* find_pc_desc_internal(address pc, bool approximate);
530 535
531 PcDesc* find_pc_desc(address pc, bool approximate) { 536 PcDesc* find_pc_desc(address pc, bool approximate) {
532 PcDesc* desc = _pc_desc_cache.last_pc_desc(); 537 PcDesc* desc = _pc_desc_cache.last_pc_desc();
545 public: 550 public:
546 // copying of debugging information 551 // copying of debugging information
547 void copy_scopes_pcs(PcDesc* pcs, int count); 552 void copy_scopes_pcs(PcDesc* pcs, int count);
548 void copy_scopes_data(address buffer, int size); 553 void copy_scopes_data(address buffer, int size);
549 554
550 // deopt 555 // Deopt
551 // return true is the pc is one would expect if the frame is being deopted. 556 // Return true is the PC is one would expect if the frame is being deopted.
552 bool is_deopt_pc(address pc); 557 bool is_deopt_pc (address pc) { return is_deopt_entry(pc) || is_deopt_mh_entry(pc); }
558 bool is_deopt_entry (address pc) { return pc == deopt_handler_begin(); }
559 bool is_deopt_mh_entry(address pc) { return pc == deopt_mh_handler_begin(); }
553 // Accessor/mutator for the original pc of a frame before a frame was deopted. 560 // Accessor/mutator for the original pc of a frame before a frame was deopted.
554 address get_original_pc(const frame* fr) { return *orig_pc_addr(fr); } 561 address get_original_pc(const frame* fr) { return *orig_pc_addr(fr); }
555 void set_original_pc(const frame* fr, address pc) { *orig_pc_addr(fr) = pc; } 562 void set_original_pc(const frame* fr, address pc) { *orig_pc_addr(fr) = pc; }
563
564 static address get_deopt_original_pc(const frame* fr);
556 565
557 // MethodHandle 566 // MethodHandle
558 bool is_method_handle_return(address return_pc); 567 bool is_method_handle_return(address return_pc);
559 568
560 // jvmti support: 569 // jvmti support: