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Issue 6321012: Version 3.0.9... (Closed) Base URL: http://v8.googlecode.com/svn/trunk/
Patch Set: Created 9 years, 11 months ago
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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. 1 // Copyright 2006-2008 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 27
28 #include "v8.h" 28 #include "v8.h"
29 29
30 #include "compilation-cache.h" 30 #include "compilation-cache.h"
31 #include "execution.h" 31 #include "execution.h"
32 #include "heap-profiler.h" 32 #include "heap-profiler.h"
33 #include "gdb-jit.h"
33 #include "global-handles.h" 34 #include "global-handles.h"
34 #include "ic-inl.h" 35 #include "ic-inl.h"
35 #include "mark-compact.h" 36 #include "mark-compact.h"
36 #include "objects-visiting.h" 37 #include "objects-visiting.h"
37 #include "stub-cache.h" 38 #include "stub-cache.h"
38 39
39 namespace v8 { 40 namespace v8 {
40 namespace internal { 41 namespace internal {
41 42
42 // ------------------------------------------------------------------------- 43 // -------------------------------------------------------------------------
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118 ASSERT(!FLAG_always_compact || !FLAG_never_compact); 119 ASSERT(!FLAG_always_compact || !FLAG_never_compact);
119 120
120 compacting_collection_ = 121 compacting_collection_ =
121 FLAG_always_compact || force_compaction_ || compact_on_next_gc_; 122 FLAG_always_compact || force_compaction_ || compact_on_next_gc_;
122 compact_on_next_gc_ = false; 123 compact_on_next_gc_ = false;
123 124
124 if (FLAG_never_compact) compacting_collection_ = false; 125 if (FLAG_never_compact) compacting_collection_ = false;
125 if (!Heap::map_space()->MapPointersEncodable()) 126 if (!Heap::map_space()->MapPointersEncodable())
126 compacting_collection_ = false; 127 compacting_collection_ = false;
127 if (FLAG_collect_maps) CreateBackPointers(); 128 if (FLAG_collect_maps) CreateBackPointers();
129 #ifdef ENABLE_GDB_JIT_INTERFACE
130 if (FLAG_gdbjit) {
131 // If GDBJIT interface is active disable compaction.
132 compacting_collection_ = false;
133 }
134 #endif
128 135
129 PagedSpaces spaces; 136 PagedSpaces spaces;
130 for (PagedSpace* space = spaces.next(); 137 for (PagedSpace* space = spaces.next();
131 space != NULL; space = spaces.next()) { 138 space != NULL; space = spaces.next()) {
132 space->PrepareForMarkCompact(compacting_collection_); 139 space->PrepareForMarkCompact(compacting_collection_);
133 } 140 }
134 141
135 #ifdef DEBUG 142 #ifdef DEBUG
136 live_bytes_ = 0; 143 live_bytes_ = 0;
137 live_young_objects_size_ = 0; 144 live_young_objects_size_ = 0;
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2899 PROFILE(FunctionMoveEvent(old_addr, new_addr)); 2906 PROFILE(FunctionMoveEvent(old_addr, new_addr));
2900 PROFILE(FunctionCreateEventFromMove(JSFunction::cast(copied_to))); 2907 PROFILE(FunctionCreateEventFromMove(JSFunction::cast(copied_to)));
2901 } 2908 }
2902 HEAP_PROFILE(ObjectMoveEvent(old_addr, new_addr)); 2909 HEAP_PROFILE(ObjectMoveEvent(old_addr, new_addr));
2903 2910
2904 return obj_size; 2911 return obj_size;
2905 } 2912 }
2906 2913
2907 2914
2908 void MarkCompactCollector::ReportDeleteIfNeeded(HeapObject* obj) { 2915 void MarkCompactCollector::ReportDeleteIfNeeded(HeapObject* obj) {
2916 #ifdef ENABLE_GDB_JIT_INTERFACE
2917 if (obj->IsCode()) {
2918 GDBJITInterface::RemoveCode(reinterpret_cast<Code*>(obj));
2919 }
2920 #endif
2909 #ifdef ENABLE_LOGGING_AND_PROFILING 2921 #ifdef ENABLE_LOGGING_AND_PROFILING
2910 if (obj->IsCode()) { 2922 if (obj->IsCode()) {
2911 PROFILE(CodeDeleteEvent(obj->address())); 2923 PROFILE(CodeDeleteEvent(obj->address()));
2912 } else if (obj->IsJSFunction()) { 2924 } else if (obj->IsJSFunction()) {
2913 PROFILE(FunctionDeleteEvent(obj->address())); 2925 PROFILE(FunctionDeleteEvent(obj->address()));
2914 } 2926 }
2915 #endif 2927 #endif
2916 } 2928 }
2917 2929
2918 2930
2919 int MarkCompactCollector::SizeOfMarkedObject(HeapObject* obj) { 2931 int MarkCompactCollector::SizeOfMarkedObject(HeapObject* obj) {
2920 MapWord map_word = obj->map_word(); 2932 MapWord map_word = obj->map_word();
2921 map_word.ClearMark(); 2933 map_word.ClearMark();
2922 return obj->SizeFromMap(map_word.ToMap()); 2934 return obj->SizeFromMap(map_word.ToMap());
2923 } 2935 }
2924 2936
2925 2937
2926 void MarkCompactCollector::Initialize() { 2938 void MarkCompactCollector::Initialize() {
2927 StaticPointersToNewGenUpdatingVisitor::Initialize(); 2939 StaticPointersToNewGenUpdatingVisitor::Initialize();
2928 StaticMarkingVisitor::Initialize(); 2940 StaticMarkingVisitor::Initialize();
2929 } 2941 }
2930 2942
2931 2943
2932 } } // namespace v8::internal 2944 } } // namespace v8::internal
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