Initial checkin of lldb code from internal Apple repo.
git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@105619 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Plugins/Process/gdb-remote/GDBServer.cpp b/source/Plugins/Process/gdb-remote/GDBServer.cpp
new file mode 100644
index 0000000..a88ec7b
--- /dev/null
+++ b/source/Plugins/Process/gdb-remote/GDBServer.cpp
@@ -0,0 +1,1148 @@
+//===-- GDBServer.cpp -------------------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <errno.h>
+#include <getopt.h>
+#include <netinet/in.h>
+#include <sys/select.h>
+#include <sys/sysctl.h>
+#include <string>
+#include <vector>
+#include <asl.h>
+
+#include "GDBServerLog.h"
+#include "GDBRemoteSession.h"
+
+using namespace lldb;
+
+//----------------------------------------------------------------------
+// Run loop modes which determine which run loop function will be called
+//----------------------------------------------------------------------
+typedef enum
+{
+ eDCGSRunLoopModeInvalid = 0,
+ eDCGSRunLoopModeGetStartModeFromRemoteProtocol,
+ eDCGSRunLoopModeInferiorAttaching,
+ eDCGSRunLoopModeInferiorLaunching,
+ eDCGSRunLoopModeInferiorExecuting,
+ eDCGSRunLoopModeInferiorKillOrDetach,
+ eDCGSRunLoopModeExit
+} GSRunLoopMode;
+
+typedef enum
+{
+ eLaunchFlavorDefault = 0,
+ eLaunchFlavorPosixSpawn,
+#if defined (__arm__)
+ eLaunchFlavorSpringBoard,
+#endif
+ eLaunchFlavorForkExec,
+} GSLaunchFlavor;
+
+typedef lldb::shared_ptr<GDBRemoteSession> GDBRemoteSP;
+
+typedef struct HandleBroadcastEventInfo
+{
+ TargetSP target_sp;
+ GDBRemoteSP remote_sp;
+ GSRunLoopMode mode;
+
+ Target *
+ GetTarget ()
+ {
+ return target_sp.get();
+ }
+
+ Process *
+ GetProcess()
+ {
+ if (target_sp.get())
+ return target_sp->GetProcess().get();
+ return NULL;
+ }
+
+ GDBRemoteSession *
+ GetRemote ()
+ {
+ return remote_sp.get();
+ }
+
+};
+
+
+//----------------------------------------------------------------------
+// Global Variables
+//----------------------------------------------------------------------
+static int g_lockdown_opt = 0;
+static int g_applist_opt = 0;
+static GSLaunchFlavor g_launch_flavor = eLaunchFlavorDefault;
+int g_isatty = 0;
+
+//----------------------------------------------------------------------
+// Run Loop function prototypes
+//----------------------------------------------------------------------
+void GSRunLoopGetStartModeFromRemote (HandleBroadcastEventInfo *info);
+void GSRunLoopInferiorExecuting (HandleBroadcastEventInfo *info);
+
+
+//----------------------------------------------------------------------
+// Get our program path and arguments from the remote connection.
+// We will need to start up the remote connection without a PID, get the
+// arguments, wait for the new process to finish launching and hit its
+// entry point, and then return the run loop mode that should come next.
+//----------------------------------------------------------------------
+void
+GSRunLoopGetStartModeFromRemote (HandleBroadcastEventInfo *info)
+{
+ std::string packet;
+
+ Target *target = info->GetTarget();
+ GDBRemoteSession *remote = info->GetRemote();
+ if (target != NULL && remote != NULL)
+ {
+ // Spin waiting to get the A packet.
+ while (1)
+ {
+ gdb_err_t err = gdb_err;
+ GDBRemoteSession::PacketEnum type;
+
+ err = remote->HandleReceivedPacket (&type);
+
+ // check if we tried to attach to a process
+ if (type == GDBRemoteSession::vattach || type == GDBRemoteSession::vattachwait)
+ {
+ if (err == gdb_success)
+ {
+ info->mode = eDCGSRunLoopModeInferiorExecuting;
+ return;
+ }
+ else
+ {
+ Log::STDERR ("error: attach failed.");
+ info->mode = eDCGSRunLoopModeExit;
+ return;
+ }
+ }
+
+ if (err == gdb_success)
+ {
+ // If we got our arguments we are ready to launch using the arguments
+ // and any environment variables we received.
+ if (type == GDBRemoteSession::set_argv)
+ {
+ info->mode = eDCGSRunLoopModeInferiorLaunching;
+ return;
+ }
+ }
+ else if (err == gdb_not_connected)
+ {
+ Log::STDERR ("error: connection lost.");
+ info->mode = eDCGSRunLoopModeExit;
+ return;
+ }
+ else
+ {
+ // a catch all for any other gdb remote packets that failed
+ GDBServerLog::LogIf (GS_LOG_MINIMAL, "%s Error getting packet.",__FUNCTION__);
+ continue;
+ }
+
+ GDBServerLog::LogIf (GS_LOG_MINIMAL, "#### %s", __FUNCTION__);
+ }
+ }
+ info->mode = eDCGSRunLoopModeExit;
+}
+
+
+//----------------------------------------------------------------------
+// This run loop mode will wait for the process to launch and hit its
+// entry point. It will currently ignore all events except for the
+// process state changed event, where it watches for the process stopped
+// or crash process state.
+//----------------------------------------------------------------------
+GSRunLoopMode
+GSRunLoopLaunchInferior (HandleBroadcastEventInfo *info)
+{
+ // The Process stuff takes a c array, the GSContext has a vector...
+ // So make up a c array.
+ Target *target = info->GetTarget();
+ GDBRemoteSession *remote = info->GetRemote();
+ Process* process = info->GetProcess();
+
+ if (process == NULL)
+ return eDCGSRunLoopModeExit;
+
+ GDBServerLog::LogIf (GS_LOG_MINIMAL, "%s Launching '%s'...", __FUNCTION__, target->GetExecutableModule()->GetFileSpec().GetFilename().AsCString());
+
+ // Our launch type hasn't been set to anything concrete, so we need to
+ // figure our how we are going to launch automatically.
+
+ GSLaunchFlavor launch_flavor = g_launch_flavor;
+ if (launch_flavor == eLaunchFlavorDefault)
+ {
+ // Our default launch method is posix spawn
+ launch_flavor = eLaunchFlavorPosixSpawn;
+
+#if defined (__arm__)
+ // Check if we have an app bundle, if so launch using SpringBoard.
+ if (strstr(inferior_argv[0], ".app"))
+ {
+ launch_flavor = eLaunchFlavorSpringBoard;
+ }
+#endif
+ }
+
+ //ctx.SetLaunchFlavor(launch_flavor);
+
+ const char *stdio_file = NULL;
+ lldb::pid_t pid = process->Launch (remote->GetARGV(), remote->GetENVP(), stdio_file, stdio_file, stdio_file);
+
+ if (pid == LLDB_INVALID_PROCESS_ID)
+ {
+ Log::STDERR ("error: process launch failed: %s", process->GetError().AsCString());
+ }
+ else
+ {
+ if (remote->IsConnected())
+ {
+ // It we are connected already, the next thing gdb will do is ask
+ // whether the launch succeeded, and if not, whether there is an
+ // error code. So we need to fetch one packet from gdb before we wait
+ // on the stop from the target.
+ gdb_err_t err = gdb_err;
+ GDBRemoteSession::PacketEnum type;
+
+ err = remote->HandleReceivedPacket (&type);
+
+ if (err != gdb_success)
+ {
+ GDBServerLog::LogIf (GS_LOG_MINIMAL, "%s Error getting packet.", __FUNCTION__);
+ return eDCGSRunLoopModeExit;
+ }
+ if (type != GDBRemoteSession::query_launch_success)
+ {
+ GDBServerLog::LogIf (GS_LOG_MINIMAL, "%s Didn't get the expected qLaunchSuccess packet.", __FUNCTION__);
+ }
+ }
+ }
+
+ Listener listener("GSRunLoopLaunchInferior");
+ listener.StartListeningForEvents (process, Process::eBroadcastBitStateChanged);
+ while (process->GetID() != LLDB_INVALID_PROCESS_ID)
+ {
+ uint32_t event_mask = 0;
+ while (listener.WaitForEvent(NULL, &event_mask))
+ {
+ if (event_mask & Process::eBroadcastBitStateChanged)
+ {
+ Event event;
+ StateType event_state;
+ while ((event_state = process->GetNextEvent (&event)))
+ if (StateIsStoppedState(event_state))
+ {
+ GDBServerLog::LogIf (GS_LOG_EVENTS, "%s process %4.4x stopped with state %s", __FUNCTION__, pid, StateAsCString(event_state));
+
+ switch (event_state)
+ {
+ default:
+ case eStateInvalid:
+ case eStateUnloaded:
+ case eStateAttaching:
+ case eStateLaunching:
+ case eStateSuspended:
+ break; // Ignore
+
+ case eStateRunning:
+ case eStateStepping:
+ // Still waiting to stop at entry point...
+ break;
+
+ case eStateStopped:
+ case eStateCrashed:
+ return eDCGSRunLoopModeInferiorExecuting;
+
+ case eStateDetached:
+ case eStateExited:
+ pid = LLDB_INVALID_PROCESS_ID;
+ return eDCGSRunLoopModeExit;
+ }
+ }
+
+ if (event_state = eStateInvalid)
+ break;
+ }
+ }
+ }
+
+ return eDCGSRunLoopModeExit;
+}
+
+
+//----------------------------------------------------------------------
+// This run loop mode will wait for the process to launch and hit its
+// entry point. It will currently ignore all events except for the
+// process state changed event, where it watches for the process stopped
+// or crash process state.
+//----------------------------------------------------------------------
+GSRunLoopMode
+GSRunLoopLaunchAttaching (HandleBroadcastEventInfo *info, lldb::pid_t& pid)
+{
+ Process* process = info->GetProcess();
+
+ GDBServerLog::LogIf (GS_LOG_MINIMAL, "%s Attaching to pid %i...", __FUNCTION__, pid);
+ pid = process->Attach(pid);
+
+ if (pid == LLDB_INVALID_PROCESS_ID)
+ return eDCGSRunLoopModeExit;
+ return eDCGSRunLoopModeInferiorExecuting;
+}
+
+//----------------------------------------------------------------------
+// Watch for signals:
+// SIGINT: so we can halt our inferior. (disabled for now)
+// SIGPIPE: in case our child process dies
+//----------------------------------------------------------------------
+lldb::pid_t g_pid;
+int g_sigpipe_received = 0;
+void
+signal_handler(int signo)
+{
+ GDBServerLog::LogIf (GS_LOG_MINIMAL, "%s (%s)", __FUNCTION__, Host::GetSignalAsCString(signo));
+
+ switch (signo)
+ {
+// case SIGINT:
+// DNBProcessKill (g_pid, signo);
+// break;
+
+ case SIGPIPE:
+ g_sigpipe_received = 1;
+ break;
+ }
+}
+
+// Return the new run loop mode based off of the current process state
+void
+HandleProcessStateChange (HandleBroadcastEventInfo *info, bool initialize)
+{
+ Process *process = info->GetProcess();
+ if (process == NULL)
+ {
+ info->mode = eDCGSRunLoopModeExit;
+ return;
+ }
+
+ if (process->GetID() == LLDB_INVALID_PROCESS_ID)
+ {
+ GDBServerLog::LogIf (GS_LOG_MINIMAL, "#### %s error: pid invalid, exiting...", __FUNCTION__);
+ info->mode = eDCGSRunLoopModeExit;
+ return;
+ }
+ StateType pid_state = process->GetState ();
+
+ GDBServerLog::LogIf (GS_LOG_MINIMAL, "%s (info, initialize=%i) pid_state = %s", __FUNCTION__, (int)initialize, StateAsCString(pid_state));
+
+ switch (pid_state)
+ {
+ case eStateInvalid:
+ case eStateUnloaded:
+ // Something bad happened
+ info->mode = eDCGSRunLoopModeExit;
+ return;
+
+ case eStateAttaching:
+ case eStateLaunching:
+ info->mode = eDCGSRunLoopModeInferiorExecuting;
+ return;
+
+ case eStateSuspended:
+ case eStateCrashed:
+ case eStateStopped:
+ if (initialize == false)
+ {
+ // Compare the last stop count to our current notion of a stop count
+ // to make sure we don't notify more than once for a given stop.
+ static uint32_t g_prev_stop_id = 0;
+ uint32_t stop_id = process->GetStopID();
+ bool pid_stop_count_changed = g_prev_stop_id != stop_id;
+ if (pid_stop_count_changed)
+ {
+ info->GetRemote()->FlushSTDIO();
+
+ if (stop_id == 1)
+ {
+ GDBServerLog::LogIf (GS_LOG_MINIMAL, "%s (&remote, initialize=%i) pid_state = %s pid_stop_count %u (old %u)) Notify??? no, first stop...", __FUNCTION__, (int)initialize, StateAsCString (pid_state), stop_id, g_prev_stop_id);
+ }
+ else
+ {
+
+ GDBServerLog::LogIf (GS_LOG_MINIMAL, "%s (&remote, initialize=%i) pid_state = %s pid_stop_count %u (old %u)) Notify??? YES!!!", __FUNCTION__, (int)initialize, StateAsCString (pid_state), stop_id, g_prev_stop_id);
+ info->GetRemote()->NotifyThatProcessStopped ();
+ }
+ }
+ else
+ {
+ GDBServerLog::LogIf (GS_LOG_MINIMAL, "%s (&remote, initialize=%i) pid_state = %s pid_stop_count %u (old %u)) Notify??? skipping...", __FUNCTION__, (int)initialize, StateAsCString (pid_state), stop_id, g_prev_stop_id);
+ }
+ }
+ info->mode = eDCGSRunLoopModeInferiorExecuting;
+ return;
+
+ case eStateStepping:
+ case eStateRunning:
+ info->mode = eDCGSRunLoopModeInferiorExecuting;
+ return;
+
+ case eStateExited:
+ info->GetRemote()->HandlePacket_last_signal (NULL);
+ info->mode = eDCGSRunLoopModeExit;
+ return;
+
+ }
+
+ // Catch all...
+ info->mode = eDCGSRunLoopModeExit;
+}
+
+bool
+CommunicationHandleBroadcastEvent (Broadcaster *broadcaster, uint32_t event_mask, void *baton)
+{
+ HandleBroadcastEventInfo *info = (HandleBroadcastEventInfo *)baton;
+ Process *process = info->GetProcess();
+
+ if (process == NULL)
+ {
+ info->mode = eDCGSRunLoopModeExit;
+ return true;
+ }
+
+ if (event_mask & Communication::eBroadcastBitPacketAvailable)
+ {
+ if (process->IsRunning())
+ {
+ if (info->GetRemote()->HandleAsyncPacket() == gdb_not_connected)
+ info->mode = eDCGSRunLoopModeExit;
+ }
+ else
+ {
+ if (info->GetRemote()->HandleReceivedPacket() == gdb_not_connected)
+ info->mode = eDCGSRunLoopModeExit;
+ }
+ }
+ if (event_mask & Communication::eBroadcastBitReadThreadDidExit)
+ {
+ info->mode = eDCGSRunLoopModeExit;
+ }
+ if (event_mask & Communication::eBroadcastBitDisconnected)
+ {
+ info->mode = eDCGSRunLoopModeExit;
+ }
+
+ return true;
+
+}
+
+bool
+ProcessHandleBroadcastEvent (Broadcaster *broadcaster, uint32_t event_mask, void *baton)
+{
+ HandleBroadcastEventInfo *info = (HandleBroadcastEventInfo *)baton;
+ Process *process = info->GetProcess();
+ if (process == NULL)
+ {
+ info->mode = eDCGSRunLoopModeExit;
+ return true;
+ }
+
+ if (event_mask & Process::eBroadcastBitStateChanged)
+ {
+ // Consume all available process events with no timeout
+ Event event;
+ StateType process_state;
+ while ((process_state = process->GetNextEvent (&event)) != eStateInvalid)
+ {
+ if (StateIsStoppedState(process_state))
+ info->GetRemote()->FlushSTDIO();
+ HandleProcessStateChange (info, false);
+
+ if (info->mode != eDCGSRunLoopModeInferiorExecuting)
+ break;
+ }
+ }
+ else
+ if (event_mask & (Process::eBroadcastBitSTDOUT | Process::eBroadcastBitSTDERR))
+ {
+ info->GetRemote()->FlushSTDIO();
+ }
+ return true;
+}
+
+// This function handles the case where our inferior program is stopped and
+// we are waiting for gdb remote protocol packets. When a packet occurs that
+// makes the inferior run, we need to leave this function with a new state
+// as the return code.
+void
+GSRunLoopInferiorExecuting (HandleBroadcastEventInfo *info)
+{
+ GDBServerLog::LogIf (GS_LOG_MINIMAL, "#### %s", __FUNCTION__);
+
+ // Init our mode and set 'is_running' based on the current process state
+ HandleProcessStateChange (info, true);
+
+ uint32_t desired_mask, acquired_mask;
+ Listener listener("GSRunLoopInferiorExecuting");
+
+ desired_mask = Communication::eBroadcastBitPacketAvailable |
+ Communication::eBroadcastBitReadThreadDidExit |
+ Communication::eBroadcastBitDisconnected;
+
+ acquired_mask = listener.StartListeningForEvents (&(info->GetRemote()->GetPacketComm()),
+ desired_mask,
+ CommunicationHandleBroadcastEvent,
+ info);
+
+ assert (acquired_mask == desired_mask);
+ desired_mask = GDBRemotePacket::eBroadcastBitPacketAvailable;
+
+ acquired_mask = listener.StartListeningForEvents (&(info->GetRemote()->GetPacketComm()),
+ desired_mask,
+ CommunicationHandleBroadcastEvent,
+ info);
+
+ assert (acquired_mask == desired_mask);
+
+ desired_mask = Process::eBroadcastBitStateChanged |
+ Process::eBroadcastBitSTDOUT |
+ Process::eBroadcastBitSTDERR ;
+ acquired_mask = listener.StartListeningForEvents (info->GetProcess (),
+ desired_mask,
+ ProcessHandleBroadcastEvent,
+ info);
+
+ assert (acquired_mask == desired_mask);
+
+ Process *process = info->GetProcess();
+
+ while (process->IsAlive())
+ {
+ if (!info->GetRemote()->IsConnected())
+ {
+ info->mode = eDCGSRunLoopModeInferiorKillOrDetach;
+ break;
+ }
+
+ // We want to make sure we consume all process state changes and have
+ // whomever is notifying us to wait for us to reset the event bit before
+ // continuing.
+ //ctx.Events().SetResetAckMask (GSContext::event_proc_state_changed);
+ uint32_t event_mask = 0;
+ Broadcaster *broadcaster = listener.WaitForEvent(NULL, &event_mask);
+ if (broadcaster)
+ {
+ listener.HandleBroadcastEvent(broadcaster, event_mask);
+ }
+ }
+}
+
+
+//----------------------------------------------------------------------
+// Convenience function to set up the remote listening port
+// Returns 1 for success 0 for failure.
+//----------------------------------------------------------------------
+
+static bool
+StartListening (HandleBroadcastEventInfo *info, int listen_port)
+{
+ if (!info->GetRemote()->IsConnected())
+ {
+ Log::STDOUT ("Listening to port %i...\n", listen_port);
+ char connect_url[256];
+ snprintf(connect_url, sizeof(connect_url), "listen://%i", listen_port);
+
+ Communication &comm = info->remote_sp->GetPacketComm();
+ comm.SetConnection (new ConnectionFileDescriptor);
+
+ if (comm.Connect (connect_url))
+ {
+ if (comm.StartReadThread())
+ return true;
+
+ Log::STDERR ("Failed to start the communication read thread.\n", connect_url);
+ comm.Disconnect();
+ }
+ else
+ {
+ Log::STDERR ("Failed to connection to %s.\n", connect_url);
+ }
+ return false;
+ }
+ return true;
+}
+
+//----------------------------------------------------------------------
+// ASL Logging callback that can be registered with DNBLogSetLogDCScriptInterpreter::Type
+//----------------------------------------------------------------------
+//void
+//ASLLogDCScriptInterpreter::Type(void *baton, uint32_t flags, const char *format, va_list args)
+//{
+// if (format == NULL)
+// return;
+// static aslmsg g_aslmsg = NULL;
+// if (g_aslmsg == NULL)
+// {
+// g_aslmsg = ::asl_new (ASL_TYPE_MSG);
+// char asl_key_sender[PATH_MAX];
+// snprintf(asl_key_sender, sizeof(asl_key_sender), "com.apple.dc-gdbserver-%g", dc_gdbserverVersionNumber);
+// ::asl_set (g_aslmsg, ASL_KEY_SENDER, asl_key_sender);
+// }
+//
+// int asl_level;
+// if (flags & DNBLOG_FLAG_FATAL) asl_level = ASL_LEVEL_CRIT;
+// else if (flags & DNBLOG_FLAG_ERROR) asl_level = ASL_LEVEL_ERR;
+// else if (flags & DNBLOG_FLAG_WARNING) asl_level = ASL_LEVEL_WARNING;
+// else if (flags & DNBLOG_FLAG_VERBOSE) asl_level = ASL_LEVEL_WARNING; //ASL_LEVEL_INFO;
+// else asl_level = ASL_LEVEL_WARNING; //ASL_LEVEL_DEBUG;
+//
+// ::asl_vlog (NULL, g_aslmsg, asl_level, format, args);
+//}
+
+//----------------------------------------------------------------------
+// FILE based Logging callback that can be registered with
+// DNBLogSetLogDCScriptInterpreter::Type
+//----------------------------------------------------------------------
+void
+FileLogDCScriptInterpreter::Type(void *baton, uint32_t flags, const char *format, va_list args)
+{
+ if (baton == NULL || format == NULL)
+ return;
+
+ ::vfprintf ((FILE *)baton, format, args);
+ ::fprintf ((FILE *)baton, "\n");
+}
+
+//----------------------------------------------------------------------
+// option descriptors for getopt_long()
+//----------------------------------------------------------------------
+static struct option g_long_options[] =
+{
+ { "arch", required_argument, NULL, 'c' },
+ { "attach", required_argument, NULL, 'a' },
+ { "debug", no_argument, NULL, 'g' },
+ { "verbose", no_argument, NULL, 'v' },
+ { "lockdown", no_argument, &g_lockdown_opt, 1 }, // short option "-k"
+ { "applist", no_argument, &g_applist_opt, 1 }, // short option "-t"
+ { "log-file", required_argument, NULL, 'l' },
+ { "log-flags", required_argument, NULL, 'f' },
+ { "launch", required_argument, NULL, 'x' }, // Valid values are "auto", "posix-spawn", "fork-exec", "springboard" (arm only)
+ { "waitfor", required_argument, NULL, 'w' }, // Wait for a process whose namet starts with ARG
+ { "waitfor-interval", required_argument, NULL, 'i' }, // Time in usecs to wait between sampling the pid list when waiting for a process by name
+ { "waitfor-duration", required_argument, NULL, 'd' }, // The time in seconds to wait for a process to show up by name
+ { NULL, 0, NULL, 0 }
+};
+
+extern const double dc_gdbserverVersionNumber;
+int
+main (int argc, char *argv[])
+{
+ Initialize();
+ Host::ThreadCreated ("[main]");
+
+ g_isatty = ::isatty (STDIN_FILENO);
+
+// signal (SIGINT, signal_handler);
+ signal (SIGPIPE, signal_handler);
+
+ Log *log = GDBServerLog::GetLogIfAllCategoriesSet(GS_LOG_ALL);
+ const char *this_exe_name = argv[0];
+ int i;
+ int attach_pid = LLDB_INVALID_PROCESS_ID;
+ for (i=0; i<argc; i++)
+ GDBServerLog::LogIf(GS_LOG_DEBUG, "argv[%i] = %s", i, argv[i]);
+
+ FILE* log_file = NULL;
+ uint32_t log_flags = 0;
+ // Parse our options
+ int ch;
+ int long_option_index = 0;
+ int debug = 0;
+ std::string waitfor_pid_name; // Wait for a process that starts with this name
+ std::string attach_pid_name;
+ useconds_t waitfor_interval = 1000; // Time in usecs between process lists polls when waiting for a process by name, default 1 msec.
+ useconds_t waitfor_duration = 0; // Time in seconds to wait for a process by name, 0 means wait forever.
+ ArchSpec arch;
+ GSRunLoopMode start_mode = eDCGSRunLoopModeExit;
+
+ while ((ch = getopt_long(argc, argv, "a:c:d:gi:vktl:f:w:x:", g_long_options, &long_option_index)) != -1)
+ {
+// DNBLogDebug("option: ch == %c (0x%2.2x) --%s%c%s\n",
+// ch, (uint8_t)ch,
+// g_long_options[long_option_index].name,
+// g_long_options[long_option_index].has_arg ? '=' : ' ',
+// optarg ? optarg : "");
+ switch (ch)
+ {
+ case 0: // Any optional that auto set themselves will return 0
+ break;
+
+ case 'c':
+ arch.SetArch(optarg);
+ if (!arch.IsValid())
+ {
+ Log::STDERR ("error: invalid arch string '%s'\n", optarg);
+ exit (8);
+ }
+ break;
+
+ case 'a':
+ if (optarg && optarg[0])
+ {
+ if (isdigit(optarg[0]))
+ {
+ char *end = NULL;
+ attach_pid = strtoul(optarg, &end, 0);
+ if (end == NULL || *end != '\0')
+ {
+ Log::STDERR ("error: invalid pid option '%s'\n", optarg);
+ exit (4);
+ }
+ }
+ else
+ {
+ attach_pid_name = optarg;
+ }
+ start_mode = eDCGSRunLoopModeInferiorAttaching;
+ }
+ break;
+
+ // --waitfor=NAME
+ case 'w':
+ if (optarg && optarg[0])
+ {
+ waitfor_pid_name = optarg;
+ start_mode = eDCGSRunLoopModeInferiorAttaching;
+ }
+ break;
+
+ // --waitfor-interval=USEC
+ case 'i':
+ if (optarg && optarg[0])
+ {
+ char *end = NULL;
+ waitfor_interval = strtoul(optarg, &end, 0);
+ if (end == NULL || *end != '\0')
+ {
+ Log::STDERR ("error: invalid waitfor-interval option value '%s'.\n", optarg);
+ exit (6);
+ }
+ }
+ break;
+
+ // --waitfor-duration=SEC
+ case 'd':
+ if (optarg && optarg[0])
+ {
+ char *end = NULL;
+ waitfor_duration = strtoul(optarg, &end, 0);
+ if (end == NULL || *end != '\0')
+ {
+ Log::STDERR ("error: invalid waitfor-duration option value '%s'.\n", optarg);
+ exit (7);
+ }
+ }
+ break;
+
+ case 'x':
+ if (optarg && optarg[0])
+ {
+ if (strcasecmp(optarg, "auto") == 0)
+ g_launch_flavor = eLaunchFlavorDefault;
+ else if (strcasestr(optarg, "posix") == optarg)
+ g_launch_flavor = eLaunchFlavorPosixSpawn;
+ else if (strcasestr(optarg, "fork") == optarg)
+ g_launch_flavor = eLaunchFlavorForkExec;
+#if defined (__arm__)
+ else if (strcasestr(optarg, "spring") == optarg)
+ g_launch_flavor = eLaunchFlavorSpringBoard;
+#endif
+ else
+ {
+ Log::STDERR ("error: invalid TYPE for the --launch=TYPE (-x TYPE) option: '%s'\n", optarg);
+ Log::STDERR ("Valid values TYPE are:\n");
+ Log::STDERR (" auto Auto-detect the best launch method to use.\n");
+ Log::STDERR (" posix Launch the executable using posix_spawn.\n");
+ Log::STDERR (" fork Launch the executable using fork and exec.\n");
+#if defined (__arm__)
+ Log::STDERR (" spring Launch the executable through Springboard.\n");
+#endif
+ exit (5);
+ }
+ }
+ break;
+
+ case 'l': // Set Log File
+ if (optarg && optarg[0])
+ {
+ if (strcasecmp(optarg, "stdout") == 0)
+ log_file = stdout;
+ else if (strcasecmp(optarg, "stderr") == 0)
+ log_file = stderr;
+ else
+ log_file = fopen(optarg, "w+");
+
+ if (log_file == NULL)
+ {
+ const char *errno_str = strerror(errno);
+ Log::STDERR ("Failed to open log file '%s' for writing: errno = %i (%s)", optarg, errno, errno_str ? errno_str : "unknown error");
+ }
+ }
+ break;
+
+ case 'f': // Log Flags
+ if (optarg && optarg[0])
+ log_flags = strtoul(optarg, NULL, 0);
+ break;
+
+ case 'g':
+ debug = 1;
+ //DNBLogSetDebug(1);
+ break;
+
+ case 't':
+ g_applist_opt = 1;
+ break;
+
+ case 'k':
+ g_lockdown_opt = 1;
+ break;
+
+ case 'v':
+ //DNBLogSetVerbose(1);
+ break;
+ }
+ }
+
+ // Skip any options we consumed with getopt_long
+ argc -= optind;
+ argv += optind;
+
+ // It is ok for us to set NULL as the logfile (this will disable any logging)
+
+// if (log_file != NULL)
+// {
+// DNBLogSetLogDCScriptInterpreter::Type(FileLogDCScriptInterpreter::Type, log_file);
+// // If our log file was set, yet we have no log flags, log everything!
+// if (log_flags == 0)
+// log_flags = LOG_ALL | LOG_DCGS_ALL;
+//
+// DNBLogSetLogMask (log_flags);
+// }
+// else
+// {
+// // Enable DNB logging
+// DNBLogSetLogDCScriptInterpreter::Type(ASLLogDCScriptInterpreter::Type, NULL);
+// DNBLogSetLogMask (log_flags);
+//
+// }
+
+ // as long as we're dropping remotenub in as a replacement for gdbserver,
+ // explicitly note that this is not gdbserver.
+
+ Log::STDOUT ("debugserver-%g \n", dc_gdbserverVersionNumber);
+ int listen_port = -1;
+ if (g_lockdown_opt == 0 && g_applist_opt == 0)
+ {
+ // Make sure we at least have port
+ if (argc < 1)
+ {
+ Log::STDERR ("Usage: %s host:port [program-name program-arg1 program-arg2 ...]\n", this_exe_name);
+ exit (1);
+ }
+ // accept 'localhost:' prefix on port number
+
+ std::string host_str;
+ std::string port_str(argv[0]);
+
+ // We just used the host:port arg...
+ argc--;
+ argv++;
+
+ size_t port_idx = port_str.find(':');
+ if (port_idx != std::string::npos)
+ {
+ host_str.assign(port_str, 0, port_idx);
+ port_str.erase(0, port_idx + 1);
+ }
+
+ if (port_str.empty())
+ {
+ Log::STDERR ("error: no port specified\nUsage: %s host:port [program-name program-arg1 program-arg2 ...]\n", this_exe_name);
+ exit (2);
+ }
+ else if (port_str.find_first_not_of("0123456789") != std::string::npos)
+ {
+ Log::STDERR ("error: port must be an integer: %s\nUsage: %s host:port [program-name program-arg1 program-arg2 ...]\n", port_str.c_str(), this_exe_name);
+ exit (3);
+ }
+ //DNBLogDebug("host_str = '%s' port_str = '%s'", host_str.c_str(), port_str.c_str());
+ listen_port = atoi (port_str.c_str());
+ }
+
+
+ // We must set up some communications now.
+
+ FileSpec exe_spec;
+ if (argv[0])
+ exe_spec.SetFile (argv[0]);
+
+ HandleBroadcastEventInfo info;
+ info.target_sp = TargetList::SharedList().CreateTarget(&exe_spec, &arch);
+ ProcessSP process_sp (info.target_sp->CreateProcess ());
+ info.remote_sp.reset (new GDBRemoteSession (process_sp));
+
+ info.remote_sp->SetLog (log);
+ StreamString sstr;
+ sstr.Printf("ConnectionFileDescriptor(%s)", argv[0]);
+
+ if (info.remote_sp.get() == NULL)
+ {
+ Log::STDERR ("error: failed to create a GDBRemoteSession class\n");
+ return -1;
+ }
+
+
+
+ // If we know we're waiting to attach, we don't need any of this other info.
+ if (start_mode != eDCGSRunLoopModeInferiorAttaching)
+ {
+ if (argc == 0 || g_lockdown_opt)
+ {
+ if (g_lockdown_opt != 0)
+ {
+ // Work around for SIGPIPE crashes due to posix_spawn issue. We have to close
+ // STDOUT and STDERR, else the first time we try and do any, we get SIGPIPE and
+ // die as posix_spawn is doing bad things with our file descriptors at the moment.
+ int null = open("/dev/null", O_RDWR);
+ dup2(null, STDOUT_FILENO);
+ dup2(null, STDERR_FILENO);
+ }
+ else if (g_applist_opt != 0)
+ {
+// // List all applications we are able to see
+// std::string applist_plist;
+// int err = ListApplications(applist_plist, false, false);
+// if (err == 0)
+// {
+// fputs (applist_plist.c_str(), stdout);
+// }
+// else
+// {
+// Log::STDERR ("error: ListApplications returned error %i\n", err);
+// }
+// // Exit with appropriate error if we were asked to list the applications
+// // with no other args were given (and we weren't trying to do this over
+// // lockdown)
+// return err;
+ return 0;
+ }
+
+ //DNBLogDebug("Get args from remote protocol...");
+ start_mode = eDCGSRunLoopModeGetStartModeFromRemoteProtocol;
+ }
+ else
+ {
+ start_mode = eDCGSRunLoopModeInferiorLaunching;
+ // Fill in the argv array in the context from the rest of our args.
+ // Skip the name of this executable and the port number
+ info.remote_sp->SetArguments (argc, argv);
+ }
+ }
+
+ if (start_mode == eDCGSRunLoopModeExit)
+ return -1;
+
+ info.mode = start_mode;
+
+ while (info.mode != eDCGSRunLoopModeExit)
+ {
+ switch (info.mode)
+ {
+ case eDCGSRunLoopModeGetStartModeFromRemoteProtocol:
+ #if defined (__arm__)
+ if (g_lockdown_opt)
+ {
+ if (!info.remote_sp->GetCommunication()->IsConnected())
+ {
+ if (info.remote_sp->GetCommunication()->ConnectToService () != gdb_success)
+ {
+ Log::STDERR ("Failed to get connection from a remote gdb process.\n");
+ info.mode = eDCGSRunLoopModeExit;
+ }
+ else if (g_applist_opt != 0)
+ {
+ // List all applications we are able to see
+ std::string applist_plist;
+ if (ListApplications(applist_plist, false, false) == 0)
+ {
+ //DNBLogDebug("Task list: %s", applist_plist.c_str());
+
+ info.remote_sp->GetCommunication()->Write(applist_plist.c_str(), applist_plist.size());
+ // Issue a read that will never yield any data until the other side
+ // closes the socket so this process doesn't just exit and cause the
+ // socket to close prematurely on the other end and cause data loss.
+ std::string buf;
+ info.remote_sp->GetCommunication()->Read(buf);
+ }
+ info.remote_sp->GetCommunication()->Disconnect(false);
+ info.mode = eDCGSRunLoopModeExit;
+ break;
+ }
+ else
+ {
+ // Start watching for remote packets
+ info.remote_sp->StartReadRemoteDataThread();
+ }
+ }
+ }
+ else
+#endif
+ {
+ if (StartListening (&info, listen_port))
+ Log::STDOUT ("Got a connection, waiting for process information for launching or attaching.\n");
+ else
+ info.mode = eDCGSRunLoopModeExit;
+ }
+
+ if (info.mode != eDCGSRunLoopModeExit)
+ GSRunLoopGetStartModeFromRemote (&info);
+ break;
+
+ case eDCGSRunLoopModeInferiorAttaching:
+ if (!waitfor_pid_name.empty())
+ {
+ // Set our end wait time if we are using a waitfor-duration
+ // option that may have been specified
+
+ TimeValue attach_timeout_abstime;
+ if (waitfor_duration != 0)
+ {
+ attach_timeout_abstime = TimeValue::Now();
+ attach_timeout_abstime.OffsetWithSeconds (waitfor_duration);
+ }
+ GSLaunchFlavor launch_flavor = g_launch_flavor;
+ if (launch_flavor == eLaunchFlavorDefault)
+ {
+ // Our default launch method is posix spawn
+ launch_flavor = eLaunchFlavorPosixSpawn;
+
+#if defined (__arm__)
+ // Check if we have an app bundle, if so launch using SpringBoard.
+ if (waitfor_pid_name.find (".app") != std::string::npos)
+ {
+ launch_flavor = eLaunchFlavorSpringBoard;
+ }
+#endif
+ }
+
+ //ctx.SetLaunchFlavor(launch_flavor);
+
+
+ lldb::pid_t pid = info.GetProcess()->Attach (waitfor_pid_name.c_str());
+ if (pid == LLDB_INVALID_PROCESS_ID)
+ {
+ info.GetRemote()->GetLaunchError() = info.GetProcess()->GetError();
+ Log::STDERR ("error: failed to attach to process named: \"%s\" %s", waitfor_pid_name.c_str(), info.GetRemote()->GetLaunchError().AsCString());
+ info.mode = eDCGSRunLoopModeExit;
+ }
+ else
+ {
+ info.mode = eDCGSRunLoopModeInferiorExecuting;
+ }
+ }
+ else if (attach_pid != LLDB_INVALID_PROCESS_ID)
+ {
+ Log::STDOUT ("Attaching to process %i...\n", attach_pid);
+ info.mode = GSRunLoopLaunchAttaching (&info, attach_pid);
+ if (info.mode != eDCGSRunLoopModeInferiorExecuting)
+ {
+ const char *error_str = info.GetRemote()->GetLaunchError().AsCString();
+ Log::STDERR ("error: failed to attach process %i: %s\n", attach_pid, error_str ? error_str : "unknown error.");
+ info.mode = eDCGSRunLoopModeExit;
+ }
+ }
+ else if (!attach_pid_name.empty ())
+ {
+ lldb::pid_t pid = info.GetProcess()->Attach (waitfor_pid_name.c_str());
+ if (pid == LLDB_INVALID_PROCESS_ID)
+ {
+ info.GetRemote()->GetLaunchError() = info.GetProcess()->GetError();
+ Log::STDERR ("error: failed to attach to process named: \"%s\" %s", waitfor_pid_name.c_str(), info.GetRemote()->GetLaunchError().AsCString());
+ info.mode = eDCGSRunLoopModeExit;
+ }
+ else
+ {
+ info.mode = eDCGSRunLoopModeInferiorExecuting;
+ }
+ }
+ else
+ {
+ Log::STDERR ("error: asked to attach with empty name and invalid PID.");
+ info.mode = eDCGSRunLoopModeExit;
+ }
+
+ if (info.mode != eDCGSRunLoopModeExit)
+ {
+ if (StartListening (&info, listen_port))
+ Log::STDOUT ("Got a connection, waiting for debugger instructions for process %d.\n", attach_pid);
+ else
+ info.mode = eDCGSRunLoopModeExit;
+ }
+ break;
+
+ case eDCGSRunLoopModeInferiorLaunching:
+ info.mode = GSRunLoopLaunchInferior (&info);
+
+ if (info.mode == eDCGSRunLoopModeInferiorExecuting)
+ {
+ if (StartListening (&info, listen_port))
+ Log::STDOUT ("Got a connection, waiting for debugger instructions for task \"%s\".\n", argv[0]);
+ else
+ info.mode = eDCGSRunLoopModeExit;
+ }
+ else
+ {
+ Log::STDERR ("error: failed to launch process %s: %s\n", argv[0], info.GetRemote()->GetLaunchError().AsCString());
+ }
+ break;
+
+ case eDCGSRunLoopModeInferiorExecuting:
+ GSRunLoopInferiorExecuting (&info);
+ break;
+
+ case eDCGSRunLoopModeInferiorKillOrDetach:
+ {
+ Process *process = info.GetProcess();
+ if (process && process->IsAlive())
+ {
+ process->Kill(SIGCONT);
+ process->Kill(SIGKILL);
+ }
+ }
+ info.mode = eDCGSRunLoopModeExit;
+ break;
+
+ default:
+ info.mode = eDCGSRunLoopModeExit;
+ case eDCGSRunLoopModeExit:
+ break;
+ }
+ }
+
+ return 0;
+}