f8b825f689
This recommits r341487, which was reverted due to failing tests with clang. It turned out I had incorrectly expected that the literal arrays passed to ArrayRef constructor will have static (permanent) storage. This was only the case with gcc, while clang was constructing them on stack, leading to dangling pointers when the function returns. The fix is to explicitly assign static storage duration to the opcode arrays. llvm-svn: 341758
131 lines
4.5 KiB
C++
131 lines
4.5 KiB
C++
//===-- NativeProcessNetBSD.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_NativeProcessNetBSD_H_
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#define liblldb_NativeProcessNetBSD_H_
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#include "lldb/Target/MemoryRegionInfo.h"
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#include "lldb/Utility/ArchSpec.h"
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#include "lldb/Utility/FileSpec.h"
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#include "NativeThreadNetBSD.h"
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#include "lldb/Host/common/NativeProcessProtocol.h"
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namespace lldb_private {
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namespace process_netbsd {
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/// @class NativeProcessNetBSD
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/// Manages communication with the inferior (debugee) process.
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///
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/// Upon construction, this class prepares and launches an inferior process
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/// for debugging.
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///
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/// Changes in the inferior process state are broadcasted.
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class NativeProcessNetBSD : public NativeProcessProtocol {
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public:
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class Factory : public NativeProcessProtocol::Factory {
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public:
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llvm::Expected<std::unique_ptr<NativeProcessProtocol>>
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Launch(ProcessLaunchInfo &launch_info, NativeDelegate &native_delegate,
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MainLoop &mainloop) const override;
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llvm::Expected<std::unique_ptr<NativeProcessProtocol>>
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Attach(lldb::pid_t pid, NativeDelegate &native_delegate,
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MainLoop &mainloop) const override;
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};
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// ---------------------------------------------------------------------
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// NativeProcessProtocol Interface
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// ---------------------------------------------------------------------
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Status Resume(const ResumeActionList &resume_actions) override;
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Status Halt() override;
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Status Detach() override;
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Status Signal(int signo) override;
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Status Kill() override;
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Status GetMemoryRegionInfo(lldb::addr_t load_addr,
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MemoryRegionInfo &range_info) override;
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Status ReadMemory(lldb::addr_t addr, void *buf, size_t size,
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size_t &bytes_read) override;
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Status ReadMemoryWithoutTrap(lldb::addr_t addr, void *buf, size_t size,
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size_t &bytes_read) override;
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Status WriteMemory(lldb::addr_t addr, const void *buf, size_t size,
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size_t &bytes_written) override;
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Status AllocateMemory(size_t size, uint32_t permissions,
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lldb::addr_t &addr) override;
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Status DeallocateMemory(lldb::addr_t addr) override;
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lldb::addr_t GetSharedLibraryInfoAddress() override;
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size_t UpdateThreads() override;
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const ArchSpec &GetArchitecture() const override { return m_arch; }
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Status SetBreakpoint(lldb::addr_t addr, uint32_t size,
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bool hardware) override;
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Status GetLoadedModuleFileSpec(const char *module_path,
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FileSpec &file_spec) override;
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Status GetFileLoadAddress(const llvm::StringRef &file_name,
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lldb::addr_t &load_addr) override;
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llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>>
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GetAuxvData() const override;
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// ---------------------------------------------------------------------
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// Interface used by NativeRegisterContext-derived classes.
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// ---------------------------------------------------------------------
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static Status PtraceWrapper(int req, lldb::pid_t pid, void *addr = nullptr,
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int data = 0, int *result = nullptr);
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private:
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MainLoop::SignalHandleUP m_sigchld_handle;
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ArchSpec m_arch;
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LazyBool m_supports_mem_region = eLazyBoolCalculate;
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std::vector<std::pair<MemoryRegionInfo, FileSpec>> m_mem_region_cache;
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// ---------------------------------------------------------------------
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// Private Instance Methods
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// ---------------------------------------------------------------------
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NativeProcessNetBSD(::pid_t pid, int terminal_fd, NativeDelegate &delegate,
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const ArchSpec &arch, MainLoop &mainloop);
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bool HasThreadNoLock(lldb::tid_t thread_id);
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NativeThreadNetBSD &AddThread(lldb::tid_t thread_id);
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void MonitorCallback(lldb::pid_t pid, int signal);
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void MonitorExited(lldb::pid_t pid, WaitStatus status);
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void MonitorSIGSTOP(lldb::pid_t pid);
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void MonitorSIGTRAP(lldb::pid_t pid);
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void MonitorSignal(lldb::pid_t pid, int signal);
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Status GetSoftwareBreakpointPCOffset(uint32_t &actual_opcode_size);
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Status FixupBreakpointPCAsNeeded(NativeThreadNetBSD &thread);
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Status PopulateMemoryRegionCache();
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void SigchldHandler();
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Status Attach();
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Status ReinitializeThreads();
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};
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} // namespace process_netbsd
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} // namespace lldb_private
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#endif // #ifndef liblldb_NativeProcessNetBSD_H_
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