2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
118 lines
4.2 KiB
C++
118 lines
4.2 KiB
C++
//===-- DynamicLoaderMacOS.h -------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// This is the DynamicLoader plugin for Darwin (macOS / iPhoneOS / tvOS /
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// watchOS / BridgeOS)
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// platforms late 2016 and newer, where lldb will call dyld SPI functions to get
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// information about shared libraries, information about the shared cache, and
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// the _dyld_debugger_notification function we put a breakpoint on give us an
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// array of load addresses for solibs loaded and unloaded. The SPI will tell us
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// about both dyld and the executable, in addition to all of the usual solibs.
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#ifndef liblldb_DynamicLoaderMacOS_h_
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#define liblldb_DynamicLoaderMacOS_h_
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#include <mutex>
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#include <vector>
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#include "lldb/Target/DynamicLoader.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Utility/FileSpec.h"
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#include "lldb/Utility/StructuredData.h"
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#include "lldb/Utility/UUID.h"
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#include "DynamicLoaderDarwin.h"
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class DynamicLoaderMacOS : public lldb_private::DynamicLoaderDarwin {
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public:
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DynamicLoaderMacOS(lldb_private::Process *process);
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virtual ~DynamicLoaderMacOS() override;
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//------------------------------------------------------------------
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// Static Functions
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//------------------------------------------------------------------
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static void Initialize();
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static void Terminate();
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static lldb_private::ConstString GetPluginNameStatic();
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static const char *GetPluginDescriptionStatic();
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static lldb_private::DynamicLoader *
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CreateInstance(lldb_private::Process *process, bool force);
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//------------------------------------------------------------------
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/// Called after attaching a process.
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///
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/// Allow DynamicLoader plug-ins to execute some code after
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/// attaching to a process.
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//------------------------------------------------------------------
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bool ProcessDidExec() override;
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lldb_private::Status CanLoadImage() override;
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bool GetSharedCacheInformation(
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lldb::addr_t &base_address, lldb_private::UUID &uuid,
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lldb_private::LazyBool &using_shared_cache,
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lldb_private::LazyBool &private_shared_cache) override;
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//------------------------------------------------------------------
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// PluginInterface protocol
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//------------------------------------------------------------------
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lldb_private::ConstString GetPluginName() override;
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uint32_t GetPluginVersion() override;
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protected:
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void PutToLog(lldb_private::Log *log) const;
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void DoInitialImageFetch() override;
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bool NeedToDoInitialImageFetch() override;
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bool DidSetNotificationBreakpoint() override;
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void AddBinaries(const std::vector<lldb::addr_t> &load_addresses);
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void DoClear() override;
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static bool
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NotifyBreakpointHit(void *baton,
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lldb_private::StoppointCallbackContext *context,
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lldb::user_id_t break_id, lldb::user_id_t break_loc_id);
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bool SetNotificationBreakpoint() override;
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void ClearNotificationBreakpoint() override;
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void UpdateImageInfosHeaderAndLoadCommands(ImageInfo::collection &image_infos,
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uint32_t infos_count,
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bool update_executable);
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lldb::addr_t
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GetDyldLockVariableAddressFromModule(lldb_private::Module *module);
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uint32_t m_image_infos_stop_id; // The Stop ID the last time we
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// loaded/unloaded images
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lldb::user_id_t m_break_id;
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mutable std::recursive_mutex m_mutex;
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lldb::addr_t m_maybe_image_infos_address; // If dyld is still maintaining the
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// all_image_infos address, store it
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// here so we can use it to detect
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// exec's when talking to
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// debugservers that don't support
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// the "reason:exec" annotation.
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private:
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DISALLOW_COPY_AND_ASSIGN(DynamicLoaderMacOS);
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};
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#endif // liblldb_DynamicLoaderMacOS_h_
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