lldb-gdbserver.cpp | Explore in Territory

//===-- lldb-gdbserver.cpp --------------------------------------*- 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
//
//===----------------------------------------------------------------------===//

#include <cerrno>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>

#ifndef _WIN32
#include <csignal>
#include <unistd.h>
#endif

#include "LLDBServerUtilities.h"
#include "Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.h"
#include "Plugins/Process/gdb-remote/ProcessGDBRemoteLog.h"
#include "lldb/Host/Config.h"
#include "lldb/Host/ConnectionFileDescriptor.h"
#include "lldb/Host/FileSystem.h"
#include "lldb/Host/Pipe.h"
#include "lldb/Host/Socket.h"
#include "lldb/Host/common/NativeProcessProtocol.h"
#include "lldb/Target/Process.h"
#include "lldb/Utility/LLDBLog.h"
#include "lldb/Utility/Status.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Option/ArgList.h"
#include "llvm/Option/OptTable.h"
#include "llvm/Option/Option.h"
#include "llvm/Support/Errno.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/WithColor.h"

#if defined(__linux__)
#include "Plugins/Process/Linux/NativeProcessLinux.h"
#elif defined(__FreeBSD__)
#include "Plugins/Process/FreeBSD/NativeProcessFreeBSD.h"
#elif defined(__NetBSD__)
#include "Plugins/Process/NetBSD/NativeProcessNetBSD.h"
#elif defined(_WIN32)
#include "Plugins/Process/Windows/Common/NativeProcessWindows.h"
#endif

#ifndef LLGS_PROGRAM_NAME
#define LLGS_PROGRAM_NAME …
#endif

#ifndef LLGS_VERSION_STR
#define LLGS_VERSION_STR …
#endif

usingnamespacellvm;
usingnamespacelldb;
usingnamespacelldb_private;
usingnamespacelldb_private::lldb_server;
usingnamespacelldb_private::process_gdb_remote;

namespace {
#if defined(__linux__)
NativeProcessManager;
#elif defined(__FreeBSD__)
typedef process_freebsd::NativeProcessFreeBSD::Manager NativeProcessManager;
#elif defined(__NetBSD__)
typedef process_netbsd::NativeProcessNetBSD::Manager NativeProcessManager;
#elif defined(_WIN32)
typedef NativeProcessWindows::Manager NativeProcessManager;
#else
// Dummy implementation to make sure the code compiles
class NativeProcessManager : public NativeProcessProtocol::Manager {
public:
  NativeProcessManager(MainLoop &mainloop)
      : NativeProcessProtocol::Manager(mainloop) {}

  llvm::Expected<std::unique_ptr<NativeProcessProtocol>>
  Launch(ProcessLaunchInfo &launch_info,
         NativeProcessProtocol::NativeDelegate &native_delegate) override {
    llvm_unreachable("Not implemented");
  }
  llvm::Expected<std::unique_ptr<NativeProcessProtocol>>
  Attach(lldb::pid_t pid,
         NativeProcessProtocol::NativeDelegate &native_delegate) override {
    llvm_unreachable("Not implemented");
  }
};
#endif
}

#ifndef _WIN32
// Watch for signals
static int g_sighup_received_count = …;

static void sighup_handler(MainLoopBase &mainloop) { … }
#endif // #ifndef _WIN32

void handle_attach_to_pid(GDBRemoteCommunicationServerLLGS &gdb_server,
                          lldb::pid_t pid) { … }

void handle_attach_to_process_name(GDBRemoteCommunicationServerLLGS &gdb_server,
                                   const std::string &process_name) { … }

void handle_attach(GDBRemoteCommunicationServerLLGS &gdb_server,
                   const std::string &attach_target) { … }

void handle_launch(GDBRemoteCommunicationServerLLGS &gdb_server,
                   llvm::ArrayRef<llvm::StringRef> Arguments) { … }

Status writeSocketIdToPipe(Pipe &port_pipe, llvm::StringRef socket_id) { … }

Status writeSocketIdToPipe(const char *const named_pipe_path,
                           llvm::StringRef socket_id) { … }

Status writeSocketIdToPipe(lldb::pipe_t unnamed_pipe,
                           llvm::StringRef socket_id) { … }

void ConnectToRemote(MainLoop &mainloop,
                     GDBRemoteCommunicationServerLLGS &gdb_server,
                     bool reverse_connect, llvm::StringRef host_and_port,
                     const char *const progname, const char *const subcommand,
                     const char *const named_pipe_path, pipe_t unnamed_pipe,
                     int connection_fd) { … }

namespace {
usingnamespacellvm::opt;

enum ID { … };

#define PREFIX …
#include "LLGSOptions.inc"
#undef PREFIX

static constexpr opt::OptTable::Info InfoTable[] = …;

class LLGSOptTable : public opt::GenericOptTable { … };
} // namespace

int main_gdbserver(int argc, char *argv[]) { … }
llvm/lldb/tools/lldb-server/lldb-gdbserver.cpp
