David Srbecky | 67feb17 | 2015-12-17 19:57:44 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #ifndef ART_RUNTIME_JIT_DEBUGGER_INTERFACE_H_ |
| 18 | #define ART_RUNTIME_JIT_DEBUGGER_INTERFACE_H_ |
| 19 | |
| 20 | #include <inttypes.h> |
David Srbecky | 5cc349f | 2015-12-18 15:04:48 +0000 | [diff] [blame] | 21 | #include <memory> |
Vladimir Marko | 93205e3 | 2016-04-13 11:59:46 +0100 | [diff] [blame] | 22 | #include <vector> |
David Srbecky | 67feb17 | 2015-12-17 19:57:44 +0000 | [diff] [blame] | 23 | |
David Srbecky | c684f33 | 2018-01-19 17:38:06 +0000 | [diff] [blame] | 24 | #include "base/array_ref.h" |
| 25 | #include "base/mutex.h" |
| 26 | |
David Srbecky | 67feb17 | 2015-12-17 19:57:44 +0000 | [diff] [blame] | 27 | namespace art { |
| 28 | |
| 29 | extern "C" { |
| 30 | struct JITCodeEntry; |
| 31 | } |
| 32 | |
David Srbecky | fb3de3d | 2018-01-29 16:11:49 +0000 | [diff] [blame^] | 33 | // Notify native tools (e.g. libunwind) that DEX file has been opened. |
| 34 | // The pointer needs to point the start of the dex data (not the DexFile* object). |
| 35 | void RegisterDexFileForNative(Thread* current_thread, const void* dexfile_header); |
| 36 | |
| 37 | // Notify native tools (e.g. libunwind) that DEX file has been closed. |
| 38 | // The pointer needs to point the start of the dex data (not the DexFile* object). |
| 39 | void DeregisterDexFileForNative(Thread* current_thread, const void* dexfile_header); |
David Srbecky | c684f33 | 2018-01-19 17:38:06 +0000 | [diff] [blame] | 40 | |
David Srbecky | 67feb17 | 2015-12-17 19:57:44 +0000 | [diff] [blame] | 41 | // Notify native debugger about new JITed code by passing in-memory ELF. |
David Srbecky | 5cc349f | 2015-12-18 15:04:48 +0000 | [diff] [blame] | 42 | // It takes ownership of the in-memory ELF file. |
David Srbecky | c684f33 | 2018-01-19 17:38:06 +0000 | [diff] [blame] | 43 | JITCodeEntry* CreateJITCodeEntry(const std::vector<uint8_t>& symfile) |
David Srbecky | fb3de3d | 2018-01-29 16:11:49 +0000 | [diff] [blame^] | 44 | REQUIRES(Locks::native_debug_interface_lock_); |
David Srbecky | 67feb17 | 2015-12-17 19:57:44 +0000 | [diff] [blame] | 45 | |
| 46 | // Notify native debugger that JITed code has been removed. |
David Srbecky | 5cc349f | 2015-12-18 15:04:48 +0000 | [diff] [blame] | 47 | // It also releases the associated in-memory ELF file. |
David Srbecky | c684f33 | 2018-01-19 17:38:06 +0000 | [diff] [blame] | 48 | void DeleteJITCodeEntry(JITCodeEntry* entry) |
David Srbecky | fb3de3d | 2018-01-29 16:11:49 +0000 | [diff] [blame^] | 49 | REQUIRES(Locks::native_debug_interface_lock_); |
David Srbecky | 67feb17 | 2015-12-17 19:57:44 +0000 | [diff] [blame] | 50 | |
David Srbecky | c684f33 | 2018-01-19 17:38:06 +0000 | [diff] [blame] | 51 | // Helper method to track life-time of JITCodeEntry. |
| 52 | // It registers given code address as being described by the given entry. |
| 53 | void IncrementJITCodeEntryRefcount(JITCodeEntry* entry, uintptr_t code_address) |
David Srbecky | fb3de3d | 2018-01-29 16:11:49 +0000 | [diff] [blame^] | 54 | REQUIRES(Locks::native_debug_interface_lock_); |
David Srbecky | 5cc349f | 2015-12-18 15:04:48 +0000 | [diff] [blame] | 55 | |
David Srbecky | c684f33 | 2018-01-19 17:38:06 +0000 | [diff] [blame] | 56 | // Helper method to track life-time of JITCodeEntry. |
| 57 | // It de-registers given code address as being described by the given entry. |
| 58 | void DecrementJITCodeEntryRefcount(JITCodeEntry* entry, uintptr_t code_address) |
David Srbecky | fb3de3d | 2018-01-29 16:11:49 +0000 | [diff] [blame^] | 59 | REQUIRES(Locks::native_debug_interface_lock_); |
David Srbecky | c684f33 | 2018-01-19 17:38:06 +0000 | [diff] [blame] | 60 | |
| 61 | // Find the registered JITCodeEntry for given code address. |
| 62 | // There can be only one entry per address at any given time. |
| 63 | JITCodeEntry* GetJITCodeEntry(uintptr_t code_address) |
David Srbecky | fb3de3d | 2018-01-29 16:11:49 +0000 | [diff] [blame^] | 64 | REQUIRES(Locks::native_debug_interface_lock_); |
David Srbecky | c684f33 | 2018-01-19 17:38:06 +0000 | [diff] [blame] | 65 | |
| 66 | // Returns approximate memory used by all JITCodeEntries. |
| 67 | size_t GetJITCodeEntryMemUsage() |
David Srbecky | fb3de3d | 2018-01-29 16:11:49 +0000 | [diff] [blame^] | 68 | REQUIRES(Locks::native_debug_interface_lock_); |
David Srbecky | 5cc349f | 2015-12-18 15:04:48 +0000 | [diff] [blame] | 69 | |
David Srbecky | 67feb17 | 2015-12-17 19:57:44 +0000 | [diff] [blame] | 70 | } // namespace art |
| 71 | |
| 72 | #endif // ART_RUNTIME_JIT_DEBUGGER_INTERFACE_H_ |