diff options
Diffstat (limited to 'lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp')
| -rw-r--r-- | lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp | 140 |
1 files changed, 138 insertions, 2 deletions
diff --git a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp index 3b8d6056063..93e4166af2c 100644 --- a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp +++ b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp @@ -17,25 +17,33 @@ // Other libraries and framework includes #include "lldb/Core/Log.h" #include "lldb/Core/StreamString.h" +#include "lldb/Host/FileSpec.h" +#include "lldb/Host/Host.h" #include "lldb/Host/TimeValue.h" +#include "lldb/Target/Process.h" // Project includes #include "ProcessGDBRemoteLog.h" +#define DEBUGSERVER_BASENAME "debugserver" + using namespace lldb; using namespace lldb_private; //---------------------------------------------------------------------- // GDBRemoteCommunication constructor //---------------------------------------------------------------------- -GDBRemoteCommunication::GDBRemoteCommunication(const char *comm_name, const char *listener_name) : +GDBRemoteCommunication::GDBRemoteCommunication(const char *comm_name, + const char *listener_name, + bool is_platform) : Communication(comm_name), m_packet_timeout (60), m_rx_packet_listener (listener_name), m_sequence_mutex (Mutex::eMutexTypeRecursive), m_public_is_running (false), m_private_is_running (false), - m_send_acks (true) + m_send_acks (true), + m_is_platform (is_platform) { m_rx_packet_listener.StartListeningForEvents(this, Communication::eBroadcastBitPacketAvailable | @@ -328,3 +336,131 @@ GDBRemoteCommunication::AppendBytesToCache (const uint8_t *src, size_t src_len, } } +Error +GDBRemoteCommunication::StartDebugserverProcess (const char *debugserver_url, + const char *unix_socket_name, // For handshaking + lldb_private::ProcessLaunchInfo &launch_info) +{ + Error error; + // If we locate debugserver, keep that located version around + static FileSpec g_debugserver_file_spec; + + // This function will fill in the launch information for the debugserver + // instance that gets launched. + launch_info.Clear(); + + char debugserver_path[PATH_MAX]; + FileSpec &debugserver_file_spec = launch_info.GetExecutableFile(); + + // Always check to see if we have an environment override for the path + // to the debugserver to use and use it if we do. + const char *env_debugserver_path = getenv("LLDB_DEBUGSERVER_PATH"); + if (env_debugserver_path) + debugserver_file_spec.SetFile (env_debugserver_path, false); + else + debugserver_file_spec = g_debugserver_file_spec; + bool debugserver_exists = debugserver_file_spec.Exists(); + if (!debugserver_exists) + { + // The debugserver binary is in the LLDB.framework/Resources + // directory. + if (Host::GetLLDBPath (ePathTypeSupportExecutableDir, debugserver_file_spec)) + { + debugserver_file_spec.GetFilename().SetCString(DEBUGSERVER_BASENAME); + debugserver_exists = debugserver_file_spec.Exists(); + if (debugserver_exists) + { + g_debugserver_file_spec = debugserver_file_spec; + } + else + { + g_debugserver_file_spec.Clear(); + debugserver_file_spec.Clear(); + } + } + } + + if (debugserver_exists) + { + debugserver_file_spec.GetPath (debugserver_path, sizeof(debugserver_path)); + + Args &debugserver_args = launch_info.GetArguments(); + debugserver_args.Clear(); + char arg_cstr[PATH_MAX]; + + // Start args with "debugserver /file/path -r --" + debugserver_args.AppendArgument(debugserver_path); + debugserver_args.AppendArgument(debugserver_url); + // use native registers, not the GDB registers + debugserver_args.AppendArgument("--native-regs"); + // make debugserver run in its own session so signals generated by + // special terminal key sequences (^C) don't affect debugserver + debugserver_args.AppendArgument("--setsid"); + + if (unix_socket_name && unix_socket_name[0]) + { + debugserver_args.AppendArgument("--unix-socket"); + debugserver_args.AppendArgument(unix_socket_name); + } + + const char *env_debugserver_log_file = getenv("LLDB_DEBUGSERVER_LOG_FILE"); + if (env_debugserver_log_file) + { + ::snprintf (arg_cstr, sizeof(arg_cstr), "--log-file=%s", env_debugserver_log_file); + debugserver_args.AppendArgument(arg_cstr); + } + + const char *env_debugserver_log_flags = getenv("LLDB_DEBUGSERVER_LOG_FLAGS"); + if (env_debugserver_log_flags) + { + ::snprintf (arg_cstr, sizeof(arg_cstr), "--log-flags=%s", env_debugserver_log_flags); + debugserver_args.AppendArgument(arg_cstr); + } + // debugserver_args.AppendArgument("--log-file=/tmp/debugserver.txt"); + // debugserver_args.AppendArgument("--log-flags=0x802e0e"); + + // We currently send down all arguments, attach pids, or attach + // process names in dedicated GDB server packets, so we don't need + // to pass them as arguments. This is currently because of all the + // things we need to setup prior to launching: the environment, + // current working dir, file actions, etc. +#if 0 + // Now append the program arguments + if (inferior_argv) + { + // Terminate the debugserver args so we can now append the inferior args + debugserver_args.AppendArgument("--"); + + for (int i = 0; inferior_argv[i] != NULL; ++i) + debugserver_args.AppendArgument (inferior_argv[i]); + } + else if (attach_pid != LLDB_INVALID_PROCESS_ID) + { + ::snprintf (arg_cstr, sizeof(arg_cstr), "--attach=%u", attach_pid); + debugserver_args.AppendArgument (arg_cstr); + } + else if (attach_name && attach_name[0]) + { + if (wait_for_launch) + debugserver_args.AppendArgument ("--waitfor"); + else + debugserver_args.AppendArgument ("--attach"); + debugserver_args.AppendArgument (attach_name); + } +#endif + + // Close STDIN, STDOUT and STDERR. We might need to redirect them + // to "/dev/null" if we run into any problems. +// launch_info.AppendCloseFileAction (STDIN_FILENO); +// launch_info.AppendCloseFileAction (STDOUT_FILENO); +// launch_info.AppendCloseFileAction (STDERR_FILENO); + + error = Host::LaunchProcess(launch_info); + } + else + { + error.SetErrorStringWithFormat ("Unable to locate " DEBUGSERVER_BASENAME ".\n"); + } + return error; +} + |
