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| 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef VM_DEBUGINFO_H_ | 5 #ifndef VM_DEBUGINFO_H_ |
| 6 #define VM_DEBUGINFO_H_ | 6 #define VM_DEBUGINFO_H_ |
| 7 | 7 |
| 8 #include "vm/assert.h" | 8 #include "vm/assert.h" |
| 9 #include "vm/globals.h" | 9 #include "vm/globals.h" |
| 10 #include "vm/utils.h" | 10 #include "vm/utils.h" |
| 11 | 11 |
| 12 namespace dart { | 12 namespace dart { |
| 13 | 13 |
| 14 // A basic ByteArray which is growable and uses malloc/free. | 14 // A basic ByteVector which is growable and uses malloc/free. |
| 15 class ByteArray { | 15 class ByteVector { |
|
Ivan Posva
2012/01/13 00:32:44
DebugInfo::ByteBuffer => no more conflicts...
| |
| 16 public: | 16 public: |
| 17 ByteArray() : size_(0), capacity_(0), data_(NULL) { } | 17 ByteVector() : size_(0), capacity_(0), data_(NULL) { } |
| 18 ~ByteArray() { | 18 ~ByteVector() { |
| 19 free(data_); | 19 free(data_); |
| 20 size_ = 0; | 20 size_ = 0; |
| 21 capacity_ = 0; | 21 capacity_ = 0; |
| 22 data_ = NULL; | 22 data_ = NULL; |
| 23 } | 23 } |
| 24 | 24 |
| 25 uint8_t at(int index) const { | 25 uint8_t at(int index) const { |
| 26 ASSERT(0 <= index); | 26 ASSERT(0 <= index); |
| 27 ASSERT(index < size_); | 27 ASSERT(index < size_); |
| 28 ASSERT(size_ <= capacity_); | 28 ASSERT(size_ <= capacity_); |
| (...skipping 21 matching lines...) Expand all Loading... | |
| 50 capacity_ = new_capacity; | 50 capacity_ = new_capacity; |
| 51 } | 51 } |
| 52 size_ = new_size; | 52 size_ = new_size; |
| 53 } | 53 } |
| 54 | 54 |
| 55 int size_; | 55 int size_; |
| 56 int capacity_; | 56 int capacity_; |
| 57 uint8_t* data_; | 57 uint8_t* data_; |
| 58 | 58 |
| 59 // Disallow assignment | 59 // Disallow assignment |
| 60 DISALLOW_COPY_AND_ASSIGN(ByteArray); | 60 DISALLOW_COPY_AND_ASSIGN(ByteVector); |
| 61 }; | 61 }; |
| 62 | 62 |
| 63 | 63 |
| 64 // DebugInfo is used to generate minimal debug information containing code, | 64 // DebugInfo is used to generate minimal debug information containing code, |
| 65 // symbols, and line numbers for generated code in the dart VM. This information | 65 // symbols, and line numbers for generated code in the dart VM. This information |
| 66 // can be used in two ways: | 66 // can be used in two ways: |
| 67 // - for debugging using a debugger | 67 // - for debugging using a debugger |
| 68 // - for generating information to be read by pprof to analyze Dart programs. | 68 // - for generating information to be read by pprof to analyze Dart programs. |
| 69 class DebugInfo { | 69 class DebugInfo { |
| 70 public: | 70 public: |
| 71 ~DebugInfo(); | 71 ~DebugInfo(); |
| 72 | 72 |
| 73 // Add the code starting at pc. | 73 // Add the code starting at pc. |
| 74 void AddCode(uword pc, intptr_t size); | 74 void AddCode(uword pc, intptr_t size); |
| 75 | 75 |
| 76 // Add symbol information for a region (includes the start and end symbol), | 76 // Add symbol information for a region (includes the start and end symbol), |
| 77 // does not add the actual code. | 77 // does not add the actual code. |
| 78 void AddCodeRegion(const char* name, uword pc, intptr_t size); | 78 void AddCodeRegion(const char* name, uword pc, intptr_t size); |
| 79 | 79 |
| 80 // Write out all the debug information info the memory region. | 80 // Write out all the debug information info the memory region. |
| 81 bool WriteToMemory(ByteArray* region); | 81 bool WriteToMemory(ByteVector* region); |
| 82 | 82 |
| 83 // Create a new debug information generator. | 83 // Create a new debug information generator. |
| 84 static DebugInfo* NewGenerator(); | 84 static DebugInfo* NewGenerator(); |
| 85 | 85 |
| 86 // Register this generated section with debuggger using the JIT interface. | 86 // Register this generated section with debuggger using the JIT interface. |
| 87 static void RegisterSection(const char* name, | 87 static void RegisterSection(const char* name, |
| 88 uword entry_point, | 88 uword entry_point, |
| 89 intptr_t size); | 89 intptr_t size); |
| 90 | 90 |
| 91 // Unregister all generated section from debuggger. | 91 // Unregister all generated section from debuggger. |
| 92 static void UnregisterAllSections(); | 92 static void UnregisterAllSections(); |
| 93 | 93 |
| 94 private: | 94 private: |
| 95 void* handle_; | 95 void* handle_; |
| 96 DebugInfo(); | 96 DebugInfo(); |
| 97 | 97 |
| 98 DISALLOW_COPY_AND_ASSIGN(DebugInfo); | 98 DISALLOW_COPY_AND_ASSIGN(DebugInfo); |
| 99 }; | 99 }; |
| 100 | 100 |
| 101 } // namespace dart | 101 } // namespace dart |
| 102 | 102 |
| 103 #endif // VM_DEBUGINFO_H_ | 103 #endif // VM_DEBUGINFO_H_ |
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