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| 1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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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| 6008 | 6008 |
| 6009 SafepointEntry Code::GetSafepointEntry(Address pc) { | 6009 SafepointEntry Code::GetSafepointEntry(Address pc) { |
| 6010 SafepointTable table(this); | 6010 SafepointTable table(this); |
| 6011 return table.FindEntry(pc); | 6011 return table.FindEntry(pc); |
| 6012 } | 6012 } |
| 6013 | 6013 |
| 6014 | 6014 |
| 6015 void Code::SetNoStackCheckTable() { | 6015 void Code::SetNoStackCheckTable() { |
| 6016 // Indicate the absence of a stack-check table by a table start after the | 6016 // Indicate the absence of a stack-check table by a table start after the |
| 6017 // end of the instructions. Table start must be aligned, so round up. | 6017 // end of the instructions. Table start must be aligned, so round up. |
| 6018 set_stack_check_table_start(RoundUp(instruction_size(), kIntSize)); | 6018 set_stack_check_table_offset(RoundUp(instruction_size(), kIntSize)); |
| 6019 } | 6019 } |
| 6020 | 6020 |
| 6021 | 6021 |
| 6022 Map* Code::FindFirstMap() { | 6022 Map* Code::FindFirstMap() { |
| 6023 ASSERT(is_inline_cache_stub()); | 6023 ASSERT(is_inline_cache_stub()); |
| 6024 AssertNoAllocation no_allocation; | 6024 AssertNoAllocation no_allocation; |
| 6025 int mask = RelocInfo::ModeMask(RelocInfo::EMBEDDED_OBJECT); | 6025 int mask = RelocInfo::ModeMask(RelocInfo::EMBEDDED_OBJECT); |
| 6026 for (RelocIterator it(this, mask); !it.done(); it.next()) { | 6026 for (RelocIterator it(this, mask); !it.done(); it.next()) { |
| 6027 RelocInfo* info = it.rinfo(); | 6027 RelocInfo* info = it.rinfo(); |
| 6028 Object* object = info->target_object(); | 6028 Object* object = info->target_object(); |
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| 6285 } else { | 6285 } else { |
| 6286 PrintF(out, " <none>"); | 6286 PrintF(out, " <none>"); |
| 6287 } | 6287 } |
| 6288 if (entry.argument_count() > 0) { | 6288 if (entry.argument_count() > 0) { |
| 6289 PrintF(out, " argc: %d", entry.argument_count()); | 6289 PrintF(out, " argc: %d", entry.argument_count()); |
| 6290 } | 6290 } |
| 6291 PrintF(out, "\n"); | 6291 PrintF(out, "\n"); |
| 6292 } | 6292 } |
| 6293 PrintF(out, "\n"); | 6293 PrintF(out, "\n"); |
| 6294 } else if (kind() == FUNCTION) { | 6294 } else if (kind() == FUNCTION) { |
| 6295 unsigned offset = stack_check_table_start(); | 6295 unsigned offset = stack_check_table_offset(); |
| 6296 // If there is no stack check table, the "table start" will at or after | 6296 // If there is no stack check table, the "table start" will at or after |
| 6297 // (due to alignment) the end of the instruction stream. | 6297 // (due to alignment) the end of the instruction stream. |
| 6298 if (static_cast<int>(offset) < instruction_size()) { | 6298 if (static_cast<int>(offset) < instruction_size()) { |
| 6299 unsigned* address = | 6299 unsigned* address = |
| 6300 reinterpret_cast<unsigned*>(instruction_start() + offset); | 6300 reinterpret_cast<unsigned*>(instruction_start() + offset); |
| 6301 unsigned length = address[0]; | 6301 unsigned length = address[0]; |
| 6302 PrintF(out, "Stack checks (size = %u)\n", length); | 6302 PrintF(out, "Stack checks (size = %u)\n", length); |
| 6303 PrintF(out, "ast_id pc_offset\n"); | 6303 PrintF(out, "ast_id pc_offset\n"); |
| 6304 for (unsigned i = 0; i < length; ++i) { | 6304 for (unsigned i = 0; i < length; ++i) { |
| 6305 unsigned index = (2 * i) + 1; | 6305 unsigned index = (2 * i) + 1; |
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| 9896 if (break_point_objects()->IsUndefined()) return 0; | 9896 if (break_point_objects()->IsUndefined()) return 0; |
| 9897 // Single beak point. | 9897 // Single beak point. |
| 9898 if (!break_point_objects()->IsFixedArray()) return 1; | 9898 if (!break_point_objects()->IsFixedArray()) return 1; |
| 9899 // Multiple break points. | 9899 // Multiple break points. |
| 9900 return FixedArray::cast(break_point_objects())->length(); | 9900 return FixedArray::cast(break_point_objects())->length(); |
| 9901 } | 9901 } |
| 9902 #endif | 9902 #endif |
| 9903 | 9903 |
| 9904 | 9904 |
| 9905 } } // namespace v8::internal | 9905 } } // namespace v8::internal |
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