7704473172
Summary: One of the conclusions of the discussion on D49740 was that SafeMachO is better off in the Host module (as that's the only place which should include mach/machine.h, which is what this header is working around). Also, Utility, which is the only module which cannot include Host, should not be doing anything with object file formats. This patch implements that move, and also removes any unneded includes of that file. I've verified that MacOS still compiles after this. Reviewers: jingham, zturner, teemperor Subscribers: fedor.sergeev, lldb-commits Differential Revision: https://reviews.llvm.org/D50383 llvm-svn: 342050
246 lines
8.3 KiB
C++
246 lines
8.3 KiB
C++
//===-- DynamicLoaderDarwin.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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#ifndef liblldb_DynamicLoaderDarwin_h_
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#define liblldb_DynamicLoaderDarwin_h_
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// C Includes
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// C++ Includes
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#include <map>
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#include <mutex>
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#include <vector>
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// Other libraries and framework includes
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// Project includes
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#include "lldb/Host/SafeMachO.h"
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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 "llvm/ADT/Triple.h"
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namespace lldb_private {
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class DynamicLoaderDarwin : public lldb_private::DynamicLoader {
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public:
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DynamicLoaderDarwin(lldb_private::Process *process);
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virtual ~DynamicLoaderDarwin() override;
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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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void DidAttach() override;
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void DidLaunch() override;
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lldb::ThreadPlanSP GetStepThroughTrampolinePlan(lldb_private::Thread &thread,
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bool stop_others) override;
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size_t FindEquivalentSymbols(
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lldb_private::Symbol *original_symbol,
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lldb_private::ModuleList &module_list,
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lldb_private::SymbolContextList &equivalent_symbols) override;
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lldb::addr_t GetThreadLocalData(const lldb::ModuleSP module,
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const lldb::ThreadSP thread,
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lldb::addr_t tls_file_addr) override;
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bool AlwaysRelyOnEHUnwindInfo(lldb_private::SymbolContext &sym_ctx) override;
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virtual void DoInitialImageFetch() = 0;
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virtual bool NeedToDoInitialImageFetch() = 0;
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protected:
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void PrivateInitialize(lldb_private::Process *process);
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void PrivateProcessStateChanged(lldb_private::Process *process,
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lldb::StateType state);
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void Clear(bool clear_process);
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// Clear method for classes derived from this one
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virtual void DoClear() = 0;
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void SetDYLDModule(lldb::ModuleSP &dyld_module_sp);
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lldb::ModuleSP GetDYLDModule();
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class Segment {
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public:
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Segment()
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: name(), vmaddr(LLDB_INVALID_ADDRESS), vmsize(0), fileoff(0),
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filesize(0), maxprot(0), initprot(0), nsects(0), flags(0) {}
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lldb_private::ConstString name;
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lldb::addr_t vmaddr;
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lldb::addr_t vmsize;
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lldb::addr_t fileoff;
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lldb::addr_t filesize;
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uint32_t maxprot;
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uint32_t initprot;
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uint32_t nsects;
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uint32_t flags;
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bool operator==(const Segment &rhs) const {
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return name == rhs.name && vmaddr == rhs.vmaddr && vmsize == rhs.vmsize;
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}
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void PutToLog(lldb_private::Log *log, lldb::addr_t slide) const;
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};
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struct ImageInfo {
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lldb::addr_t address; // Address of mach header for this dylib
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lldb::addr_t slide; // The amount to slide all segments by if there is a
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// global slide.
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lldb::addr_t mod_date; // Modification date for this dylib
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lldb_private::FileSpec file_spec; // Resolved path for this dylib
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lldb_private::UUID
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uuid; // UUID for this dylib if it has one, else all zeros
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llvm::MachO::mach_header header; // The mach header for this image
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std::vector<Segment> segments; // All segment vmaddr and vmsize pairs for
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// this executable (from memory of inferior)
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uint32_t load_stop_id; // The process stop ID that the sections for this
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// image were loaded
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llvm::Triple::OSType os_type; // LC_VERSION_MIN_... load command os type
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std::string min_version_os_sdk; // LC_VERSION_MIN_... sdk value
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ImageInfo()
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: address(LLDB_INVALID_ADDRESS), slide(0), mod_date(0), file_spec(),
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uuid(), header(), segments(), load_stop_id(0),
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os_type(llvm::Triple::OSType::UnknownOS), min_version_os_sdk() {}
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void Clear(bool load_cmd_data_only) {
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if (!load_cmd_data_only) {
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address = LLDB_INVALID_ADDRESS;
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slide = 0;
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mod_date = 0;
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file_spec.Clear();
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::memset(&header, 0, sizeof(header));
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}
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uuid.Clear();
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segments.clear();
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load_stop_id = 0;
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os_type = llvm::Triple::OSType::UnknownOS;
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min_version_os_sdk.clear();
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}
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bool operator==(const ImageInfo &rhs) const {
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return address == rhs.address && slide == rhs.slide &&
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mod_date == rhs.mod_date && file_spec == rhs.file_spec &&
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uuid == rhs.uuid &&
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memcmp(&header, &rhs.header, sizeof(header)) == 0 &&
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segments == rhs.segments && os_type == rhs.os_type;
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}
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bool UUIDValid() const { return uuid.IsValid(); }
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uint32_t GetAddressByteSize() {
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if (header.cputype) {
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if (header.cputype & llvm::MachO::CPU_ARCH_ABI64)
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return 8;
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else
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return 4;
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}
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return 0;
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}
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lldb_private::ArchSpec GetArchitecture() const {
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return lldb_private::ArchSpec(lldb_private::eArchTypeMachO,
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header.cputype, header.cpusubtype);
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}
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const Segment *FindSegment(const lldb_private::ConstString &name) const;
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void PutToLog(lldb_private::Log *log) const;
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typedef std::vector<ImageInfo> collection;
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typedef collection::iterator iterator;
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typedef collection::const_iterator const_iterator;
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};
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bool UpdateImageLoadAddress(lldb_private::Module *module, ImageInfo &info);
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bool UnloadModuleSections(lldb_private::Module *module, ImageInfo &info);
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lldb::ModuleSP FindTargetModuleForImageInfo(ImageInfo &image_info,
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bool can_create,
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bool *did_create_ptr);
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void UnloadImages(const std::vector<lldb::addr_t> &solib_addresses);
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void UnloadAllImages();
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virtual bool SetNotificationBreakpoint() = 0;
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virtual void ClearNotificationBreakpoint() = 0;
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virtual bool DidSetNotificationBreakpoint() = 0;
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typedef std::map<uint64_t, lldb::addr_t> PthreadKeyToTLSMap;
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typedef std::map<lldb::user_id_t, PthreadKeyToTLSMap> ThreadIDToTLSMap;
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std::recursive_mutex &GetMutex() const { return m_mutex; }
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lldb::ModuleSP GetPThreadLibraryModule();
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lldb_private::Address GetPthreadSetSpecificAddress();
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bool JSONImageInformationIntoImageInfo(
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lldb_private::StructuredData::ObjectSP image_details,
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ImageInfo::collection &image_infos);
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// If image_infos contains / may contain dyld or executable image, call this
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// method
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// to keep our internal record keeping of the special binaries up-to-date.
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void
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UpdateSpecialBinariesFromNewImageInfos(ImageInfo::collection &image_infos);
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// if image_info is a dyld binary, call this method
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void UpdateDYLDImageInfoFromNewImageInfo(ImageInfo &image_info);
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// If image_infos contains / may contain executable image, call this method
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// to keep our internal record keeping of the special dyld binary up-to-date.
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void AddExecutableModuleIfInImageInfos(ImageInfo::collection &image_infos);
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bool AddModulesUsingImageInfos(ImageInfo::collection &image_infos);
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// Whether we should use the new dyld SPI to get shared library information,
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// or read
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// it directly out of the dyld_all_image_infos. Whether we use the (newer)
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// DynamicLoaderMacOS
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// plugin or the (older) DynamicLoaderMacOSX plugin.
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static bool UseDYLDSPI(lldb_private::Process *process);
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lldb::ModuleWP m_dyld_module_wp; // the dyld whose file type (mac, ios, etc)
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// matches the process
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lldb::ModuleWP m_libpthread_module_wp;
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lldb_private::Address m_pthread_getspecific_addr;
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ThreadIDToTLSMap m_tid_to_tls_map;
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ImageInfo::collection
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m_dyld_image_infos; // Current shared libraries information
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uint32_t m_dyld_image_infos_stop_id; // The process stop ID that
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// "m_dyld_image_infos" is valid for
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ImageInfo m_dyld;
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mutable std::recursive_mutex m_mutex;
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private:
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DISALLOW_COPY_AND_ASSIGN(DynamicLoaderDarwin);
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};
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} // namespace lldb_private
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#endif // liblldb_DynamicLoaderDarwin_h_
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