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//===-- NativeProcessFreeBSD.h -------------------------------- -*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_NativeProcessFreeBSD_H_
#define liblldb_NativeProcessFreeBSD_H_
#include "Plugins/Process/POSIX/NativeProcessELF.h"
#include "Plugins/Process/Utility/NativeProcessSoftwareSingleStep.h"
#include "lldb/Target/MemoryRegionInfo.h"
#include "lldb/Utility/ArchSpec.h"
#include "lldb/Utility/FileSpec.h"
#include "NativeThreadFreeBSD.h"
namespace lldb_private {
namespace process_freebsd {
/// \class NativeProcessFreeBSD
/// Manages communication with the inferior (debugee) process.
///
/// Upon construction, this class prepares and launches an inferior process
/// for debugging.
///
/// Changes in the inferior process state are broadcasted.
class NativeProcessFreeBSD : public NativeProcessELF,
private NativeProcessSoftwareSingleStep {
public:
class Manager : public NativeProcessProtocol::Manager {
public:
using NativeProcessProtocol::Manager::Manager;
llvm::Expected<std::unique_ptr<NativeProcessProtocol>>
Launch(ProcessLaunchInfo &launch_info,
NativeDelegate &native_delegate) override;
llvm::Expected<std::unique_ptr<NativeProcessProtocol>>
Attach(lldb::pid_t pid, NativeDelegate &native_delegate) override;
Extension GetSupportedExtensions() const override;
};
// NativeProcessProtocol Interface
Status Resume(const ResumeActionList &resume_actions) override;
Status Halt() override;
Status Detach() override;
Status Signal(int signo) override;
Status Interrupt() override;
Status Kill() override;
Status GetMemoryRegionInfo(lldb::addr_t load_addr,
MemoryRegionInfo &range_info) override;
Status ReadMemory(lldb::addr_t addr, void *buf, size_t size,
size_t &bytes_read) override;
Status WriteMemory(lldb::addr_t addr, const void *buf, size_t size,
size_t &bytes_written) override;
size_t UpdateThreads() override;
const ArchSpec &GetArchitecture() const override { return m_arch; }
Status SetBreakpoint(lldb::addr_t addr, uint32_t size,
bool hardware) override;
// The two following methods are probably not necessary and probably
// will never be called. Nevertheless, we implement them right now
// to reduce the differences between different platforms and reduce
// the risk of the lack of implementation actually breaking something,
// at least for the time being.
Status GetLoadedModuleFileSpec(const char *module_path,
FileSpec &file_spec) override;
Status GetFileLoadAddress(const llvm::StringRef &file_name,
lldb::addr_t &load_addr) override;
llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>>
GetAuxvData() const override;
// Interface used by NativeRegisterContext-derived classes.
static Status PtraceWrapper(int req, lldb::pid_t pid, void *addr = nullptr,
int data = 0, int *result = nullptr);
bool SupportHardwareSingleStepping() const;
llvm::Expected<std::string> SaveCore(llvm::StringRef path_hint) override;
protected:
llvm::Expected<llvm::ArrayRef<uint8_t>>
GetSoftwareBreakpointTrapOpcode(size_t size_hint) override;
private:
MainLoop::SignalHandleUP m_sigchld_handle;
ArchSpec m_arch;
MainLoop& m_main_loop;
LazyBool m_supports_mem_region = eLazyBoolCalculate;
std::vector<std::pair<MemoryRegionInfo, FileSpec>> m_mem_region_cache;
// Private Instance Methods
NativeProcessFreeBSD(::pid_t pid, int terminal_fd, NativeDelegate &delegate,
const ArchSpec &arch, MainLoop &mainloop);
bool HasThreadNoLock(lldb::tid_t thread_id);
NativeThreadFreeBSD &AddThread(lldb::tid_t thread_id);
void RemoveThread(lldb::tid_t thread_id);
void MonitorCallback(lldb::pid_t pid, int signal);
void MonitorExited(lldb::pid_t pid, WaitStatus status);
void MonitorSIGSTOP(lldb::pid_t pid);
void MonitorSIGTRAP(lldb::pid_t pid);
void MonitorSignal(lldb::pid_t pid, int signal);
void MonitorClone(::pid_t child_pid, bool is_vfork,
NativeThreadFreeBSD &parent_thread);
Status PopulateMemoryRegionCache();
void SigchldHandler();
Status Attach();
Status SetupTrace();
Status ReinitializeThreads();
};
} // namespace process_freebsd
} // namespace lldb_private
#endif // #ifndef liblldb_NativeProcessFreeBSD_H_
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