13becd4f43
cache from ObjectFileMachO (very wrong place) to the DynamicLoader plugins (better place). Not much change to the code itself, although the old ObjectFileMachO method would try both the new dyld SPI and reading the dyld_all_image_infos structure. In the new methods, I've separated those into the appropriate DynamicLoader plugins. llvm-svn: 277088
136 lines
4.0 KiB
C++
136 lines
4.0 KiB
C++
//===-- DynamicLoaderMacOS.h -------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// This is the DynamicLoader plugin for Darwin (macOS / iPhoneOS / tvOS / watchOS)
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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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// C Includes
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// C++ Includes
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#include <vector>
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#include <mutex>
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// Other libraries and framework includes
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// Project includes
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#include "lldb/Target/DynamicLoader.h"
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#include "lldb/Host/FileSpec.h"
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#include "lldb/Core/StructuredData.h"
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#include "lldb/Core/UUID.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Utility/SafeMachO.h"
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#include "DynamicLoaderDarwin.h"
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class DynamicLoaderMacOS : public lldb_private::DynamicLoaderDarwin
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{
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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
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Initialize();
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static void
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Terminate();
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static lldb_private::ConstString
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GetPluginNameStatic();
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static const char *
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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
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ProcessDidExec() override;
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lldb_private::Error
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CanLoadImage() override;
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bool
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GetSharedCacheInformation (lldb::addr_t &base_address,
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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
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GetPluginName() override;
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uint32_t
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GetPluginVersion() override;
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protected:
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void
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PutToLog(lldb_private::Log *log) const;
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void
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DoInitialImageFetch () override;
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bool
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NeedToDoInitialImageFetch () override;
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bool
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DidSetNotificationBreakpoint () override;
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void
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AddBinaries (const std::vector<lldb::addr_t> &load_addresses);
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void
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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,
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lldb::user_id_t break_loc_id);
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bool
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SetNotificationBreakpoint () override;
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void
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ClearNotificationBreakpoint () override;
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void
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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 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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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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