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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 | 5 // modification, are permitted provided that the following conditions |
| 6 // are met: | 6 // are 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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| 2769 | 2769 |
| 2770 // Some internal data structures overflow for very large buffers, | 2770 // Some internal data structures overflow for very large buffers, |
| 2771 // they must ensure that kMaximalBufferSize is not too large. | 2771 // they must ensure that kMaximalBufferSize is not too large. |
| 2772 if ((desc.buffer_size > kMaximalBufferSize) || | 2772 if ((desc.buffer_size > kMaximalBufferSize) || |
| 2773 (desc.buffer_size > isolate()->heap()->MaxOldGenerationSize())) { | 2773 (desc.buffer_size > isolate()->heap()->MaxOldGenerationSize())) { |
| 2774 V8::FatalProcessOutOfMemory("Assembler::GrowBuffer"); | 2774 V8::FatalProcessOutOfMemory("Assembler::GrowBuffer"); |
| 2775 } | 2775 } |
| 2776 | 2776 |
| 2777 // Set up new buffer. | 2777 // Set up new buffer. |
| 2778 desc.buffer = NewArray<byte>(desc.buffer_size); | 2778 desc.buffer = NewArray<byte>(desc.buffer_size); |
| 2779 desc.origin = this; |
| 2779 desc.instr_size = pc_offset(); | 2780 desc.instr_size = pc_offset(); |
| 2780 desc.reloc_size = (buffer_ + buffer_size_) - (reloc_info_writer.pos()); | 2781 desc.reloc_size = (buffer_ + buffer_size_) - (reloc_info_writer.pos()); |
| 2781 | 2782 |
| 2782 // Clear the buffer in debug mode. Use 'int3' instructions to make | 2783 // Clear the buffer in debug mode. Use 'int3' instructions to make |
| 2783 // sure to get into problems if we ever run uninitialized code. | 2784 // sure to get into problems if we ever run uninitialized code. |
| 2784 #ifdef DEBUG | 2785 #ifdef DEBUG |
| 2785 memset(desc.buffer, 0xCC, desc.buffer_size); | 2786 memset(desc.buffer, 0xCC, desc.buffer_size); |
| 2786 #endif | 2787 #endif |
| 2787 | 2788 |
| 2788 // Copy the data. | 2789 // Copy the data. |
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| 2905 } | 2906 } |
| 2906 | 2907 |
| 2907 | 2908 |
| 2908 void Assembler::RecordRelocInfo(RelocInfo::Mode rmode, intptr_t data) { | 2909 void Assembler::RecordRelocInfo(RelocInfo::Mode rmode, intptr_t data) { |
| 2909 DCHECK(!RelocInfo::IsNone(rmode)); | 2910 DCHECK(!RelocInfo::IsNone(rmode)); |
| 2910 // Don't record external references unless the heap will be serialized. | 2911 // Don't record external references unless the heap will be serialized. |
| 2911 if (rmode == RelocInfo::EXTERNAL_REFERENCE && | 2912 if (rmode == RelocInfo::EXTERNAL_REFERENCE && |
| 2912 !serializer_enabled() && !emit_debug_code()) { | 2913 !serializer_enabled() && !emit_debug_code()) { |
| 2913 return; | 2914 return; |
| 2914 } | 2915 } |
| 2915 RelocInfo rinfo(pc_, rmode, data, NULL); | 2916 RelocInfo rinfo(isolate(), pc_, rmode, data, NULL); |
| 2916 reloc_info_writer.Write(&rinfo); | 2917 reloc_info_writer.Write(&rinfo); |
| 2917 } | 2918 } |
| 2918 | 2919 |
| 2919 | 2920 |
| 2920 #ifdef GENERATED_CODE_COVERAGE | 2921 #ifdef GENERATED_CODE_COVERAGE |
| 2921 static FILE* coverage_log = NULL; | 2922 static FILE* coverage_log = NULL; |
| 2922 | 2923 |
| 2923 | 2924 |
| 2924 static void InitCoverageLog() { | 2925 static void InitCoverageLog() { |
| 2925 char* file_name = getenv("V8_GENERATED_CODE_COVERAGE_LOG"); | 2926 char* file_name = getenv("V8_GENERATED_CODE_COVERAGE_LOG"); |
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| 2939 fflush(coverage_log); | 2940 fflush(coverage_log); |
| 2940 } | 2941 } |
| 2941 } | 2942 } |
| 2942 | 2943 |
| 2943 #endif | 2944 #endif |
| 2944 | 2945 |
| 2945 } // namespace internal | 2946 } // namespace internal |
| 2946 } // namespace v8 | 2947 } // namespace v8 |
| 2947 | 2948 |
| 2948 #endif // V8_TARGET_ARCH_IA32 | 2949 #endif // V8_TARGET_ARCH_IA32 |
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