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1 // Copyright (c) 1994-2006 Sun Microsystems Inc. | 1 // Copyright (c) 1994-2006 Sun Microsystems Inc. |
2 // All Rights Reserved. | 2 // All Rights Reserved. |
3 // | 3 // |
4 // Redistribution and use in source and binary forms, with or without | 4 // Redistribution and use in source and binary forms, with or without |
5 // modification, are permitted provided that the following conditions are | 5 // modification, are permitted provided that the following conditions are |
6 // met: | 6 // met: |
7 // | 7 // |
8 // - Redistributions of source code must retain the above copyright notice, | 8 // - Redistributions of source code must retain the above copyright notice, |
9 // this list of conditions and the following disclaimer. | 9 // this list of conditions and the following disclaimer. |
10 // | 10 // |
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361 | 361 |
362 private: | 362 private: |
363 // On ARM, note that pc_ is the address of the constant pool entry | 363 // On ARM, note that pc_ is the address of the constant pool entry |
364 // to be relocated and not the address of the instruction | 364 // to be relocated and not the address of the instruction |
365 // referencing the constant pool entry (except when rmode_ == | 365 // referencing the constant pool entry (except when rmode_ == |
366 // comment). | 366 // comment). |
367 byte* pc_; | 367 byte* pc_; |
368 Mode rmode_; | 368 Mode rmode_; |
369 intptr_t data_; | 369 intptr_t data_; |
370 Code* host_; | 370 Code* host_; |
371 #ifdef V8_TARGET_ARCH_MIPS | 371 // Code and Embedded Object pointers on some platforms are stored split |
372 // Code and Embedded Object pointers in mips are stored split | |
373 // across two consecutive 32-bit instructions. Heap management | 372 // across two consecutive 32-bit instructions. Heap management |
374 // routines expect to access these pointers indirectly. The following | 373 // routines expect to access these pointers indirectly. The following |
375 // location provides a place for these pointers to exist natually | 374 // location provides a place for these pointers to exist naturally |
376 // when accessed via the Iterator. | 375 // when accessed via the Iterator. |
377 Object* reconstructed_obj_ptr_; | 376 Object* reconstructed_obj_ptr_; |
378 // External-reference pointers are also split across instruction-pairs | 377 // External-reference pointers are also split across instruction-pairs |
379 // in mips, but are accessed via indirect pointers. This location | 378 // on some platforms, but are accessed via indirect pointers. This location |
380 // provides a place for that pointer to exist naturally. Its address | 379 // provides a place for that pointer to exist naturally. Its address |
381 // is returned by RelocInfo::target_reference_address(). | 380 // is returned by RelocInfo::target_reference_address(). |
382 Address reconstructed_adr_ptr_; | 381 Address reconstructed_adr_ptr_; |
383 #endif // V8_TARGET_ARCH_MIPS | |
384 friend class RelocIterator; | 382 friend class RelocIterator; |
385 }; | 383 }; |
386 | 384 |
387 | 385 |
388 // RelocInfoWriter serializes a stream of relocation info. It writes towards | 386 // RelocInfoWriter serializes a stream of relocation info. It writes towards |
389 // lower addresses. | 387 // lower addresses. |
390 class RelocInfoWriter BASE_EMBEDDED { | 388 class RelocInfoWriter BASE_EMBEDDED { |
391 public: | 389 public: |
392 RelocInfoWriter() : pos_(NULL), | 390 RelocInfoWriter() : pos_(NULL), |
393 last_pc_(NULL), | 391 last_pc_(NULL), |
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889 public: | 887 public: |
890 NullCallWrapper() { } | 888 NullCallWrapper() { } |
891 virtual ~NullCallWrapper() { } | 889 virtual ~NullCallWrapper() { } |
892 virtual void BeforeCall(int call_size) const { } | 890 virtual void BeforeCall(int call_size) const { } |
893 virtual void AfterCall() const { } | 891 virtual void AfterCall() const { } |
894 }; | 892 }; |
895 | 893 |
896 } } // namespace v8::internal | 894 } } // namespace v8::internal |
897 | 895 |
898 #endif // V8_ASSEMBLER_H_ | 896 #endif // V8_ASSEMBLER_H_ |
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