82 lines
3.1 KiB
C++
82 lines
3.1 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_RUNTIME_JIT_DEBUGGER_INTERFACE_H_
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#define ART_RUNTIME_JIT_DEBUGGER_INTERFACE_H_
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#include <functional>
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#include <inttypes.h>
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#include <vector>
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#include "arch/instruction_set_features.h"
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#include "base/array_ref.h"
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#include "base/locks.h"
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namespace art {
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class DexFile;
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class Mutex;
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class Thread;
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struct JITCodeEntry;
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// Must be called before zygote forks.
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// Used to ensure that zygote's mini-debug-info can be shared with apps.
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void NativeDebugInfoPreFork();
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// Must be called after zygote forks.
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void NativeDebugInfoPostFork();
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ArrayRef<const uint8_t> GetJITCodeEntrySymFile(const JITCodeEntry*);
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// Notify native tools (e.g. libunwind) that DEX file has been opened.
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void AddNativeDebugInfoForDex(Thread* self, const DexFile* dexfile);
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// Notify native tools (e.g. libunwind) that DEX file has been closed.
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void RemoveNativeDebugInfoForDex(Thread* self, const DexFile* dexfile);
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// Notify native tools (e.g. libunwind) that JIT has compiled a single new method.
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// The method will make copy of the passed ELF file (to shrink it to the minimum size).
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// If packing is allowed, the ELF file might be merged with others to save space
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// (however, this drops all ELF sections other than symbols names and unwinding info).
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void AddNativeDebugInfoForJit(const void* code_ptr,
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const std::vector<uint8_t>& symfile,
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bool allow_packing)
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REQUIRES_SHARED(Locks::jit_lock_); // Might need JIT code cache to allocate memory.
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// Notify native tools (e.g. libunwind) that JIT code has been garbage collected.
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// The actual removal might be lazy. Removal of address that was not added is no-op.
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void RemoveNativeDebugInfoForJit(const void* code_ptr);
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// Merge and compress entries to save space.
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void RepackNativeDebugInfoForJit()
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REQUIRES_SHARED(Locks::jit_lock_); // Might need JIT code cache to allocate memory.
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// Returns approximate memory used by debug info for JIT code.
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size_t GetJitMiniDebugInfoMemUsage() REQUIRES_SHARED(Locks::jit_lock_);
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// Get the lock which protects the native debug info.
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// Used only in tests to unwind while the JIT thread is running.
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// TODO: Unwinding should be race-free. Remove this.
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Mutex* GetNativeDebugInfoLock();
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// Call given callback for every non-zygote symbol.
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// The callback parameters are (address, size, name).
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void ForEachNativeDebugSymbol(std::function<void(const void*, size_t, const char*)> cb);
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} // namespace art
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#endif // ART_RUNTIME_JIT_DEBUGGER_INTERFACE_H_
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