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1//===-- NativeProcessAIX.h ---------------------------------- -*- C++ -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLDB_SOURCE_PLUGINS_PROCESS_AIX_NATIVEPROCESSAIX_H10#define LLDB_SOURCE_PLUGINS_PROCESS_AIX_NATIVEPROCESSAIX_H11 12#include "Plugins/Process/Utility/NativeProcessSoftwareSingleStep.h"13#include "lldb/Host/Debug.h"14#include "lldb/Host/common/NativeProcessProtocol.h"15#include "lldb/Host/posix/Support.h"16#include "lldb/Target/MemoryRegionInfo.h"17#include "lldb/Utility/ArchSpec.h"18#include "lldb/Utility/FileSpec.h"19#include "lldb/lldb-types.h"20#include "llvm/ADT/SmallPtrSet.h"21#include <csignal>22#include <unordered_set>23 24namespace lldb_private::process_aix {25/// \class NativeProcessAIX26/// Manages communication with the inferior (debugee) process.27///28/// Upon construction, this class prepares and launches an inferior process29/// for debugging.30///31/// Changes in the inferior process state are broadcasted.32class NativeProcessAIX : public NativeProcessProtocol {33public:34 class Manager : public NativeProcessProtocol::Manager {35 public:36 Manager(MainLoop &mainloop);37 38 llvm::Expected<std::unique_ptr<NativeProcessProtocol>>39 Launch(ProcessLaunchInfo &launch_info,40 NativeDelegate &native_delegate) override;41 42 llvm::Expected<std::unique_ptr<NativeProcessProtocol>>43 Attach(lldb::pid_t pid, NativeDelegate &native_delegate) override;44 45 void AddProcess(NativeProcessAIX &process) { m_processes.insert(&process); }46 47 void RemoveProcess(NativeProcessAIX &process) {48 m_processes.erase(&process);49 }50 51 // Collect an event for the given tid, waiting for it if necessary.52 void CollectThread(::pid_t tid);53 54 private:55 MainLoop::SignalHandleUP m_sigchld_handle;56 57 llvm::SmallPtrSet<NativeProcessAIX *, 2> m_processes;58 59 void SigchldHandler();60 };61 62 // NativeProcessProtocol Interface63 64 ~NativeProcessAIX() override { m_manager.RemoveProcess(*this); }65 66 Status Resume(const ResumeActionList &resume_actions) override;67 68 Status Halt() override;69 70 Status Detach() override;71 72 Status Signal(int signo) override;73 74 Status Interrupt() override;75 76 Status Kill() override;77 78 lldb::addr_t GetSharedLibraryInfoAddress() override;79 80 Status ReadMemory(lldb::addr_t addr, void *buf, size_t size,81 size_t &bytes_read) override;82 83 Status WriteMemory(lldb::addr_t addr, const void *buf, size_t size,84 size_t &bytes_written) override;85 86 size_t UpdateThreads() override;87 88 const ArchSpec &GetArchitecture() const override { return m_arch; }89 90 Status SetBreakpoint(lldb::addr_t addr, uint32_t size,91 bool hardware) override;92 93 Status RemoveBreakpoint(lldb::addr_t addr, bool hardware = false) override;94 95 Status GetLoadedModuleFileSpec(const char *module_path,96 FileSpec &file_spec) override;97 98 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>>99 GetAuxvData() const override {100 return getProcFile(GetID(), "auxv");101 }102 103 Status GetFileLoadAddress(const llvm::StringRef &file_name,104 lldb::addr_t &load_addr) override;105 106 static llvm::Expected<int> PtraceWrapper(int req, lldb::pid_t pid,107 void *addr = nullptr,108 void *data = nullptr,109 size_t data_size = 0);110 111 bool SupportHardwareSingleStepping() const;112 113private:114 Manager &m_manager;115 ArchSpec m_arch;116 117 // Private Instance Methods118 NativeProcessAIX(::pid_t pid, int terminal_fd, NativeDelegate &delegate,119 const ArchSpec &arch, Manager &manager,120 llvm::ArrayRef<::pid_t> tids);121 122 bool TryHandleWaitStatus(lldb::pid_t pid, WaitStatus status);123 124 // Returns a list of process threads that we have attached to.125 static llvm::Expected<std::vector<::pid_t>> Attach(::pid_t pid);126 127 llvm::Error Detach(lldb::tid_t tid);128 129 void SigchldHandler();130};131 132} // namespace lldb_private::process_aix133 134#endif // #ifndef LLDB_SOURCE_PLUGINS_PROCESS_AIX_NATIVEPROCESSAIX_H135