forked from OSchip/llvm-project
1582 lines
60 KiB
C++
1582 lines
60 KiB
C++
//===-- debugserver.cpp -----------------------------------------*- 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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#include <sys/socket.h>
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#include <sys/types.h>
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#include <errno.h>
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#include <getopt.h>
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#include <netinet/in.h>
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#include <sys/select.h>
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#include <sys/sysctl.h>
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#include <string>
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#include <vector>
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#include <asl.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include <sys/un.h>
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#include <sys/types.h>
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#include "CFString.h"
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#include "DNB.h"
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#include "DNBLog.h"
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#include "DNBTimer.h"
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#include "PseudoTerminal.h"
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#include "RNBContext.h"
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#include "RNBServices.h"
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#include "RNBSocket.h"
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#include "RNBRemote.h"
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#include "SysSignal.h"
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// Global PID in case we get a signal and need to stop the process...
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nub_process_t g_pid = INVALID_NUB_PROCESS;
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//----------------------------------------------------------------------
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// Run loop modes which determine which run loop function will be called
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//----------------------------------------------------------------------
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typedef enum
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{
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eRNBRunLoopModeInvalid = 0,
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eRNBRunLoopModeGetStartModeFromRemoteProtocol,
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eRNBRunLoopModeInferiorAttaching,
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eRNBRunLoopModeInferiorLaunching,
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eRNBRunLoopModeInferiorExecuting,
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eRNBRunLoopModePlatformMode,
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eRNBRunLoopModeExit
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} RNBRunLoopMode;
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//----------------------------------------------------------------------
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// Global Variables
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//----------------------------------------------------------------------
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RNBRemoteSP g_remoteSP;
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static int g_lockdown_opt = 0;
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static int g_applist_opt = 0;
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static nub_launch_flavor_t g_launch_flavor = eLaunchFlavorDefault;
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int g_disable_aslr = 0;
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int g_isatty = 0;
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bool g_detach_on_error = false;
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#define RNBLogSTDOUT(fmt, ...) do { if (g_isatty) { fprintf(stdout, fmt, ## __VA_ARGS__); } else { _DNBLog(0, fmt, ## __VA_ARGS__); } } while (0)
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#define RNBLogSTDERR(fmt, ...) do { if (g_isatty) { fprintf(stderr, fmt, ## __VA_ARGS__); } else { _DNBLog(0, fmt, ## __VA_ARGS__); } } while (0)
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//----------------------------------------------------------------------
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// Get our program path and arguments from the remote connection.
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// We will need to start up the remote connection without a PID, get the
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// arguments, wait for the new process to finish launching and hit its
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// entry point, and then return the run loop mode that should come next.
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//----------------------------------------------------------------------
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RNBRunLoopMode
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RNBRunLoopGetStartModeFromRemote (RNBRemote* remote)
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{
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std::string packet;
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if (remote)
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{
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RNBContext& ctx = remote->Context();
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uint32_t event_mask = RNBContext::event_read_packet_available |
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RNBContext::event_read_thread_exiting;
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// Spin waiting to get the A packet.
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while (1)
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{
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DNBLogThreadedIf (LOG_RNB_MAX, "%s ctx.Events().WaitForSetEvents( 0x%08x ) ...",__FUNCTION__, event_mask);
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nub_event_t set_events = ctx.Events().WaitForSetEvents(event_mask);
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DNBLogThreadedIf (LOG_RNB_MAX, "%s ctx.Events().WaitForSetEvents( 0x%08x ) => 0x%08x", __FUNCTION__, event_mask, set_events);
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if (set_events & RNBContext::event_read_thread_exiting)
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{
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RNBLogSTDERR ("error: packet read thread exited.\n");
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return eRNBRunLoopModeExit;
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}
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if (set_events & RNBContext::event_read_packet_available)
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{
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rnb_err_t err = rnb_err;
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RNBRemote::PacketEnum type;
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err = remote->HandleReceivedPacket (&type);
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// check if we tried to attach to a process
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if (type == RNBRemote::vattach || type == RNBRemote::vattachwait || type == RNBRemote::vattachorwait)
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{
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if (err == rnb_success)
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{
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RNBLogSTDOUT ("Attach succeeded, ready to debug.\n");
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return eRNBRunLoopModeInferiorExecuting;
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}
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else
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{
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RNBLogSTDERR ("error: attach failed.\n");
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return eRNBRunLoopModeExit;
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}
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}
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if (err == rnb_success)
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{
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// If we got our arguments we are ready to launch using the arguments
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// and any environment variables we received.
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if (type == RNBRemote::set_argv)
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{
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return eRNBRunLoopModeInferiorLaunching;
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}
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}
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else if (err == rnb_not_connected)
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{
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RNBLogSTDERR ("error: connection lost.\n");
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return eRNBRunLoopModeExit;
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}
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else
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{
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// a catch all for any other gdb remote packets that failed
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DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s Error getting packet.",__FUNCTION__);
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continue;
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}
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DNBLogThreadedIf (LOG_RNB_MINIMAL, "#### %s", __FUNCTION__);
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}
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else
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{
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DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s Connection closed before getting \"A\" packet.", __FUNCTION__);
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return eRNBRunLoopModeExit;
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}
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}
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}
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return eRNBRunLoopModeExit;
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}
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//----------------------------------------------------------------------
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// This run loop mode will wait for the process to launch and hit its
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// entry point. It will currently ignore all events except for the
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// process state changed event, where it watches for the process stopped
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// or crash process state.
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//----------------------------------------------------------------------
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RNBRunLoopMode
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RNBRunLoopLaunchInferior (RNBRemote *remote, const char *stdin_path, const char *stdout_path, const char *stderr_path, bool no_stdio)
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{
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RNBContext& ctx = remote->Context();
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// The Process stuff takes a c array, the RNBContext has a vector...
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// So make up a c array.
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DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s Launching '%s'...", __FUNCTION__, ctx.ArgumentAtIndex(0));
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size_t inferior_argc = ctx.ArgumentCount();
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// Initialize inferior_argv with inferior_argc + 1 NULLs
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std::vector<const char *> inferior_argv(inferior_argc + 1, NULL);
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size_t i;
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for (i = 0; i < inferior_argc; i++)
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inferior_argv[i] = ctx.ArgumentAtIndex(i);
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// Pass the environment array the same way:
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size_t inferior_envc = ctx.EnvironmentCount();
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// Initialize inferior_argv with inferior_argc + 1 NULLs
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std::vector<const char *> inferior_envp(inferior_envc + 1, NULL);
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for (i = 0; i < inferior_envc; i++)
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inferior_envp[i] = ctx.EnvironmentAtIndex(i);
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// Our launch type hasn't been set to anything concrete, so we need to
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// figure our how we are going to launch automatically.
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nub_launch_flavor_t launch_flavor = g_launch_flavor;
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if (launch_flavor == eLaunchFlavorDefault)
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{
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// Our default launch method is posix spawn
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launch_flavor = eLaunchFlavorPosixSpawn;
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#ifdef WITH_SPRINGBOARD
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// Check if we have an app bundle, if so launch using SpringBoard.
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if (strstr(inferior_argv[0], ".app"))
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{
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launch_flavor = eLaunchFlavorSpringBoard;
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}
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#endif
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}
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ctx.SetLaunchFlavor(launch_flavor);
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char resolved_path[PATH_MAX];
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// If we fail to resolve the path to our executable, then just use what we
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// were given and hope for the best
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if ( !DNBResolveExecutablePath (inferior_argv[0], resolved_path, sizeof(resolved_path)) )
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::strncpy(resolved_path, inferior_argv[0], sizeof(resolved_path));
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char launch_err_str[PATH_MAX];
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launch_err_str[0] = '\0';
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const char * cwd = (ctx.GetWorkingDirPath() != NULL ? ctx.GetWorkingDirPath()
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: ctx.GetWorkingDirectory());
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nub_process_t pid = DNBProcessLaunch (resolved_path,
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&inferior_argv[0],
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&inferior_envp[0],
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cwd,
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stdin_path,
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stdout_path,
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stderr_path,
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no_stdio,
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launch_flavor,
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g_disable_aslr,
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launch_err_str,
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sizeof(launch_err_str));
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g_pid = pid;
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if (pid == INVALID_NUB_PROCESS && strlen (launch_err_str) > 0)
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{
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DNBLogThreaded ("%s DNBProcessLaunch() returned error: '%s'", __FUNCTION__, launch_err_str);
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ctx.LaunchStatus().SetError(-1, DNBError::Generic);
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ctx.LaunchStatus().SetErrorString(launch_err_str);
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}
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else if (pid == INVALID_NUB_PROCESS)
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{
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DNBLogThreaded ("%s DNBProcessLaunch() failed to launch process, unknown failure", __FUNCTION__);
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ctx.LaunchStatus().SetError(-1, DNBError::Generic);
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ctx.LaunchStatus().SetErrorString(launch_err_str);
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}
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else
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{
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ctx.LaunchStatus().Clear();
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}
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if (remote->Comm().IsConnected())
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{
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// It we are connected already, the next thing gdb will do is ask
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// whether the launch succeeded, and if not, whether there is an
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// error code. So we need to fetch one packet from gdb before we wait
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// on the stop from the target.
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uint32_t event_mask = RNBContext::event_read_packet_available;
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nub_event_t set_events = ctx.Events().WaitForSetEvents(event_mask);
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if (set_events & RNBContext::event_read_packet_available)
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{
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rnb_err_t err = rnb_err;
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RNBRemote::PacketEnum type;
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err = remote->HandleReceivedPacket (&type);
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if (err != rnb_success)
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{
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DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s Error getting packet.", __FUNCTION__);
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return eRNBRunLoopModeExit;
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}
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if (type != RNBRemote::query_launch_success)
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{
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DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s Didn't get the expected qLaunchSuccess packet.", __FUNCTION__);
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}
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}
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}
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while (pid != INVALID_NUB_PROCESS)
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{
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// Wait for process to start up and hit entry point
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DNBLogThreadedIf (LOG_RNB_EVENTS, "%s DNBProcessWaitForEvent (%4.4x, eEventProcessRunningStateChanged | eEventProcessStoppedStateChanged, true, INFINITE)...", __FUNCTION__, pid);
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nub_event_t set_events = DNBProcessWaitForEvents (pid, eEventProcessRunningStateChanged | eEventProcessStoppedStateChanged, true, NULL);
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DNBLogThreadedIf (LOG_RNB_EVENTS, "%s DNBProcessWaitForEvent (%4.4x, eEventProcessRunningStateChanged | eEventProcessStoppedStateChanged, true, INFINITE) => 0x%8.8x", __FUNCTION__, pid, set_events);
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if (set_events == 0)
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{
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pid = INVALID_NUB_PROCESS;
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g_pid = pid;
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}
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else
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{
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if (set_events & (eEventProcessRunningStateChanged | eEventProcessStoppedStateChanged))
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{
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nub_state_t pid_state = DNBProcessGetState (pid);
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DNBLogThreadedIf (LOG_RNB_EVENTS, "%s process %4.4x state changed (eEventProcessStateChanged): %s", __FUNCTION__, pid, DNBStateAsString(pid_state));
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switch (pid_state)
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{
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default:
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case eStateInvalid:
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case eStateUnloaded:
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case eStateAttaching:
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case eStateLaunching:
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case eStateSuspended:
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break; // Ignore
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case eStateRunning:
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case eStateStepping:
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// Still waiting to stop at entry point...
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break;
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case eStateStopped:
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case eStateCrashed:
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ctx.SetProcessID(pid);
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return eRNBRunLoopModeInferiorExecuting;
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case eStateDetached:
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case eStateExited:
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pid = INVALID_NUB_PROCESS;
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g_pid = pid;
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return eRNBRunLoopModeExit;
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}
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}
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DNBProcessResetEvents(pid, set_events);
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}
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}
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return eRNBRunLoopModeExit;
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}
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//----------------------------------------------------------------------
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// This run loop mode will wait for the process to launch and hit its
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// entry point. It will currently ignore all events except for the
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// process state changed event, where it watches for the process stopped
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// or crash process state.
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//----------------------------------------------------------------------
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RNBRunLoopMode
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RNBRunLoopLaunchAttaching (RNBRemote *remote, nub_process_t attach_pid, nub_process_t& pid)
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{
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RNBContext& ctx = remote->Context();
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DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s Attaching to pid %i...", __FUNCTION__, attach_pid);
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char err_str[1024];
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pid = DNBProcessAttach (attach_pid, NULL, err_str, sizeof(err_str));
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g_pid = pid;
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if (pid == INVALID_NUB_PROCESS)
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{
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ctx.LaunchStatus().SetError(-1, DNBError::Generic);
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if (err_str[0])
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ctx.LaunchStatus().SetErrorString(err_str);
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return eRNBRunLoopModeExit;
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}
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else
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{
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ctx.SetProcessID(pid);
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return eRNBRunLoopModeInferiorExecuting;
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}
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}
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//----------------------------------------------------------------------
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// Watch for signals:
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// SIGINT: so we can halt our inferior. (disabled for now)
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// SIGPIPE: in case our child process dies
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//----------------------------------------------------------------------
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int g_sigint_received = 0;
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int g_sigpipe_received = 0;
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void
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signal_handler(int signo)
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{
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DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s (%s)", __FUNCTION__, SysSignal::Name(signo));
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switch (signo)
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{
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case SIGINT:
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g_sigint_received++;
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if (g_pid != INVALID_NUB_PROCESS)
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{
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// Only send a SIGINT once...
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if (g_sigint_received == 1)
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{
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switch (DNBProcessGetState (g_pid))
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{
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case eStateRunning:
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case eStateStepping:
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DNBProcessSignal (g_pid, SIGSTOP);
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return;
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default:
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break;
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}
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}
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}
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exit (SIGINT);
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break;
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case SIGPIPE:
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g_sigpipe_received = 1;
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break;
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}
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}
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// Return the new run loop mode based off of the current process state
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RNBRunLoopMode
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HandleProcessStateChange (RNBRemote *remote, bool initialize)
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{
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RNBContext& ctx = remote->Context();
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nub_process_t pid = ctx.ProcessID();
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if (pid == INVALID_NUB_PROCESS)
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{
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DNBLogThreadedIf (LOG_RNB_MINIMAL, "#### %s error: pid invalid, exiting...", __FUNCTION__);
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return eRNBRunLoopModeExit;
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}
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nub_state_t pid_state = DNBProcessGetState (pid);
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DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s (&remote, initialize=%i) pid_state = %s", __FUNCTION__, (int)initialize, DNBStateAsString (pid_state));
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switch (pid_state)
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{
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case eStateInvalid:
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case eStateUnloaded:
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// Something bad happened
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return eRNBRunLoopModeExit;
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break;
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case eStateAttaching:
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case eStateLaunching:
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return eRNBRunLoopModeInferiorExecuting;
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case eStateSuspended:
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case eStateCrashed:
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case eStateStopped:
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// If we stop due to a signal, so clear the fact that we got a SIGINT
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// so we can stop ourselves again (but only while our inferior
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// process is running..)
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g_sigint_received = 0;
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if (initialize == false)
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{
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// Compare the last stop count to our current notion of a stop count
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// to make sure we don't notify more than once for a given stop.
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nub_size_t prev_pid_stop_count = ctx.GetProcessStopCount();
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bool pid_stop_count_changed = ctx.SetProcessStopCount(DNBProcessGetStopCount(pid));
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if (pid_stop_count_changed)
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{
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remote->FlushSTDIO();
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if (ctx.GetProcessStopCount() == 1)
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{
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DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s (&remote, initialize=%i) pid_state = %s pid_stop_count %llu (old %llu)) Notify??? no, first stop...", __FUNCTION__, (int)initialize, DNBStateAsString (pid_state), (uint64_t)ctx.GetProcessStopCount(), (uint64_t)prev_pid_stop_count);
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}
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else
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{
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DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s (&remote, initialize=%i) pid_state = %s pid_stop_count %llu (old %llu)) Notify??? YES!!!", __FUNCTION__, (int)initialize, DNBStateAsString (pid_state), (uint64_t)ctx.GetProcessStopCount(), (uint64_t)prev_pid_stop_count);
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remote->NotifyThatProcessStopped ();
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}
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}
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else
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{
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DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s (&remote, initialize=%i) pid_state = %s pid_stop_count %llu (old %llu)) Notify??? skipping...", __FUNCTION__, (int)initialize, DNBStateAsString (pid_state), (uint64_t)ctx.GetProcessStopCount(), (uint64_t)prev_pid_stop_count);
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}
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}
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return eRNBRunLoopModeInferiorExecuting;
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case eStateStepping:
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case eStateRunning:
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return eRNBRunLoopModeInferiorExecuting;
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case eStateExited:
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remote->HandlePacket_last_signal(NULL);
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case eStateDetached:
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return eRNBRunLoopModeExit;
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}
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// Catch all...
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return eRNBRunLoopModeExit;
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}
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// This function handles the case where our inferior program is stopped and
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// we are waiting for gdb remote protocol packets. When a packet occurs that
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// makes the inferior run, we need to leave this function with a new state
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// as the return code.
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RNBRunLoopMode
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RNBRunLoopInferiorExecuting (RNBRemote *remote)
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{
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DNBLogThreadedIf (LOG_RNB_MINIMAL, "#### %s", __FUNCTION__);
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RNBContext& ctx = remote->Context();
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|
|
|
// Init our mode and set 'is_running' based on the current process state
|
|
RNBRunLoopMode mode = HandleProcessStateChange (remote, true);
|
|
|
|
while (ctx.ProcessID() != INVALID_NUB_PROCESS)
|
|
{
|
|
|
|
std::string set_events_str;
|
|
uint32_t event_mask = ctx.NormalEventBits();
|
|
|
|
if (!ctx.ProcessStateRunning())
|
|
{
|
|
// Clear some bits if we are not running so we don't send any async packets
|
|
event_mask &= ~RNBContext::event_proc_stdio_available;
|
|
event_mask &= ~RNBContext::event_proc_profile_data;
|
|
}
|
|
|
|
// 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 (RNBContext::event_proc_state_changed);
|
|
|
|
DNBLogThreadedIf (LOG_RNB_EVENTS, "%s ctx.Events().WaitForSetEvents(0x%08x) ...",__FUNCTION__, event_mask);
|
|
nub_event_t set_events = ctx.Events().WaitForSetEvents(event_mask);
|
|
DNBLogThreadedIf (LOG_RNB_EVENTS, "%s ctx.Events().WaitForSetEvents(0x%08x) => 0x%08x (%s)",__FUNCTION__, event_mask, set_events, ctx.EventsAsString(set_events, set_events_str));
|
|
|
|
if (set_events)
|
|
{
|
|
if ((set_events & RNBContext::event_proc_thread_exiting) ||
|
|
(set_events & RNBContext::event_proc_stdio_available))
|
|
{
|
|
remote->FlushSTDIO();
|
|
}
|
|
|
|
if (set_events & RNBContext::event_proc_profile_data)
|
|
{
|
|
remote->SendAsyncProfileData();
|
|
}
|
|
|
|
if (set_events & RNBContext::event_read_packet_available)
|
|
{
|
|
// handleReceivedPacket will take care of resetting the
|
|
// event_read_packet_available events when there are no more...
|
|
set_events ^= RNBContext::event_read_packet_available;
|
|
|
|
if (ctx.ProcessStateRunning())
|
|
{
|
|
if (remote->HandleAsyncPacket() == rnb_not_connected)
|
|
{
|
|
// TODO: connect again? Exit?
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (remote->HandleReceivedPacket() == rnb_not_connected)
|
|
{
|
|
// TODO: connect again? Exit?
|
|
}
|
|
}
|
|
}
|
|
|
|
if (set_events & RNBContext::event_proc_state_changed)
|
|
{
|
|
mode = HandleProcessStateChange (remote, false);
|
|
ctx.Events().ResetEvents(RNBContext::event_proc_state_changed);
|
|
set_events ^= RNBContext::event_proc_state_changed;
|
|
}
|
|
|
|
if (set_events & RNBContext::event_proc_thread_exiting)
|
|
{
|
|
mode = eRNBRunLoopModeExit;
|
|
}
|
|
|
|
if (set_events & RNBContext::event_read_thread_exiting)
|
|
{
|
|
// Out remote packet receiving thread exited, exit for now.
|
|
if (ctx.HasValidProcessID())
|
|
{
|
|
// TODO: We should add code that will leave the current process
|
|
// in its current state and listen for another connection...
|
|
if (ctx.ProcessStateRunning())
|
|
{
|
|
if (ctx.GetDetachOnError())
|
|
{
|
|
DNBLog ("debugserver's event read thread is exiting, detaching from the inferior process.");
|
|
DNBProcessDetach (ctx.ProcessID());
|
|
}
|
|
else
|
|
{
|
|
DNBLog ("debugserver's event read thread is exiting, killing the inferior process.");
|
|
DNBProcessKill (ctx.ProcessID());
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (ctx.GetDetachOnError())
|
|
{
|
|
DNBLog ("debugserver's event read thread is exiting, detaching from the inferior process.");
|
|
DNBProcessDetach (ctx.ProcessID());
|
|
}
|
|
}
|
|
}
|
|
mode = eRNBRunLoopModeExit;
|
|
}
|
|
}
|
|
|
|
// Reset all event bits that weren't reset for now...
|
|
if (set_events != 0)
|
|
ctx.Events().ResetEvents(set_events);
|
|
|
|
if (mode != eRNBRunLoopModeInferiorExecuting)
|
|
break;
|
|
}
|
|
|
|
return mode;
|
|
}
|
|
|
|
|
|
RNBRunLoopMode
|
|
RNBRunLoopPlatform (RNBRemote *remote)
|
|
{
|
|
RNBRunLoopMode mode = eRNBRunLoopModePlatformMode;
|
|
RNBContext& ctx = remote->Context();
|
|
|
|
while (mode == eRNBRunLoopModePlatformMode)
|
|
{
|
|
std::string set_events_str;
|
|
const uint32_t event_mask = RNBContext::event_read_packet_available |
|
|
RNBContext::event_read_thread_exiting;
|
|
|
|
DNBLogThreadedIf (LOG_RNB_EVENTS, "%s ctx.Events().WaitForSetEvents(0x%08x) ...",__FUNCTION__, event_mask);
|
|
nub_event_t set_events = ctx.Events().WaitForSetEvents(event_mask);
|
|
DNBLogThreadedIf (LOG_RNB_EVENTS, "%s ctx.Events().WaitForSetEvents(0x%08x) => 0x%08x (%s)",__FUNCTION__, event_mask, set_events, ctx.EventsAsString(set_events, set_events_str));
|
|
|
|
if (set_events)
|
|
{
|
|
if (set_events & RNBContext::event_read_packet_available)
|
|
{
|
|
if (remote->HandleReceivedPacket() == rnb_not_connected)
|
|
mode = eRNBRunLoopModeExit;
|
|
}
|
|
|
|
if (set_events & RNBContext::event_read_thread_exiting)
|
|
{
|
|
mode = eRNBRunLoopModeExit;
|
|
}
|
|
ctx.Events().ResetEvents(set_events);
|
|
}
|
|
}
|
|
return eRNBRunLoopModeExit;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// Convenience function to set up the remote listening port
|
|
// Returns 1 for success 0 for failure.
|
|
//----------------------------------------------------------------------
|
|
|
|
static void
|
|
PortWasBoundCallbackUnixSocket (const void *baton, in_port_t port)
|
|
{
|
|
//::printf ("PortWasBoundCallbackUnixSocket (baton = %p, port = %u)\n", baton, port);
|
|
|
|
const char *unix_socket_name = (const char *)baton;
|
|
|
|
if (unix_socket_name && unix_socket_name[0])
|
|
{
|
|
// We were given a unix socket name to use to communicate the port
|
|
// that we ended up binding to back to our parent process
|
|
struct sockaddr_un saddr_un;
|
|
int s = ::socket (AF_UNIX, SOCK_STREAM, 0);
|
|
if (s < 0)
|
|
{
|
|
perror("error: socket (AF_UNIX, SOCK_STREAM, 0)");
|
|
exit(1);
|
|
}
|
|
|
|
saddr_un.sun_family = AF_UNIX;
|
|
::strncpy(saddr_un.sun_path, unix_socket_name, sizeof(saddr_un.sun_path) - 1);
|
|
saddr_un.sun_path[sizeof(saddr_un.sun_path) - 1] = '\0';
|
|
saddr_un.sun_len = SUN_LEN (&saddr_un);
|
|
|
|
if (::connect (s, (struct sockaddr *)&saddr_un, SUN_LEN (&saddr_un)) < 0)
|
|
{
|
|
perror("error: connect (socket, &saddr_un, saddr_un_len)");
|
|
exit(1);
|
|
}
|
|
|
|
//::printf ("connect () sucess!!\n");
|
|
|
|
|
|
// We were able to connect to the socket, now write our PID so whomever
|
|
// launched us will know this process's ID
|
|
RNBLogSTDOUT ("Listening to port %i...\n", port);
|
|
|
|
char pid_str[64];
|
|
const int pid_str_len = ::snprintf (pid_str, sizeof(pid_str), "%u", port);
|
|
const int bytes_sent = ::send (s, pid_str, pid_str_len, 0);
|
|
|
|
if (pid_str_len != bytes_sent)
|
|
{
|
|
perror("error: send (s, pid_str, pid_str_len, 0)");
|
|
exit (1);
|
|
}
|
|
|
|
//::printf ("send () sucess!!\n");
|
|
|
|
// We are done with the socket
|
|
close (s);
|
|
}
|
|
}
|
|
|
|
static void
|
|
PortWasBoundCallbackNamedPipe (const void *baton, uint16_t port)
|
|
{
|
|
const char *named_pipe = (const char *)baton;
|
|
if (named_pipe && named_pipe[0])
|
|
{
|
|
int fd = ::open(named_pipe, O_WRONLY);
|
|
if (fd > -1)
|
|
{
|
|
char port_str[64];
|
|
const ssize_t port_str_len = ::snprintf (port_str, sizeof(port_str), "%u", port);
|
|
// Write the port number as a C string with the NULL terminator
|
|
::write (fd, port_str, port_str_len + 1);
|
|
close (fd);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
ConnectRemote (RNBRemote *remote,
|
|
const char *host,
|
|
int port,
|
|
bool reverse_connect,
|
|
const char *named_pipe_path,
|
|
const char *unix_socket_name)
|
|
{
|
|
if (!remote->Comm().IsConnected())
|
|
{
|
|
if (reverse_connect)
|
|
{
|
|
if (port == 0)
|
|
{
|
|
DNBLogThreaded("error: invalid port supplied for reverse connection: %i.\n", port);
|
|
return 0;
|
|
}
|
|
if (remote->Comm().Connect(host, port) != rnb_success)
|
|
{
|
|
DNBLogThreaded("Failed to reverse connect to %s:%i.\n", host, port);
|
|
return 0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (port != 0)
|
|
RNBLogSTDOUT ("Listening to port %i for a connection from %s...\n", port, host ? host : "localhost");
|
|
if (unix_socket_name && unix_socket_name[0])
|
|
{
|
|
if (remote->Comm().Listen(host, port, PortWasBoundCallbackUnixSocket, unix_socket_name) != rnb_success)
|
|
{
|
|
RNBLogSTDERR ("Failed to get connection from a remote gdb process.\n");
|
|
return 0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (remote->Comm().Listen(host, port, PortWasBoundCallbackNamedPipe, named_pipe_path) != rnb_success)
|
|
{
|
|
RNBLogSTDERR ("Failed to get connection from a remote gdb process.\n");
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
remote->StartReadRemoteDataThread();
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// ASL Logging callback that can be registered with DNBLogSetLogCallback
|
|
//----------------------------------------------------------------------
|
|
void
|
|
ASLLogCallback(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.%s-%g", DEBUGSERVER_PROGRAM_NAME, DEBUGSERVER_VERSION_NUM);
|
|
::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
|
|
// DNBLogSetLogCallback
|
|
//----------------------------------------------------------------------
|
|
void
|
|
FileLogCallback(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");
|
|
}
|
|
|
|
|
|
void
|
|
show_usage_and_exit (int exit_code)
|
|
{
|
|
RNBLogSTDERR ("Usage:\n %s host:port [program-name program-arg1 program-arg2 ...]\n", DEBUGSERVER_PROGRAM_NAME);
|
|
RNBLogSTDERR (" %s /path/file [program-name program-arg1 program-arg2 ...]\n", DEBUGSERVER_PROGRAM_NAME);
|
|
RNBLogSTDERR (" %s host:port --attach=<pid>\n", DEBUGSERVER_PROGRAM_NAME);
|
|
RNBLogSTDERR (" %s /path/file --attach=<pid>\n", DEBUGSERVER_PROGRAM_NAME);
|
|
RNBLogSTDERR (" %s host:port --attach=<process_name>\n", DEBUGSERVER_PROGRAM_NAME);
|
|
RNBLogSTDERR (" %s /path/file --attach=<process_name>\n", DEBUGSERVER_PROGRAM_NAME);
|
|
exit (exit_code);
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
// option descriptors for getopt_long_only()
|
|
//----------------------------------------------------------------------
|
|
static struct option g_long_options[] =
|
|
{
|
|
{ "attach", required_argument, NULL, 'a' },
|
|
{ "arch", required_argument, NULL, 'A' },
|
|
{ "debug", no_argument, NULL, 'g' },
|
|
{ "detach-on-error", no_argument, NULL, 'e' },
|
|
{ "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 name 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
|
|
{ "native-regs", no_argument, NULL, 'r' }, // Specify to use the native registers instead of the gdb defaults for the architecture.
|
|
{ "stdio-path", required_argument, NULL, 's' }, // Set the STDIO path to be used when launching applications (STDIN, STDOUT and STDERR) (only if debugserver launches the process)
|
|
{ "stdin-path", required_argument, NULL, 'I' }, // Set the STDIN path to be used when launching applications (only if debugserver launches the process)
|
|
{ "stdout-path", required_argument, NULL, 'O' }, // Set the STDOUT path to be used when launching applications (only if debugserver launches the process)
|
|
{ "stderr-path", required_argument, NULL, 'E' }, // Set the STDERR path to be used when launching applications (only if debugserver launches the process)
|
|
{ "no-stdio", no_argument, NULL, 'n' }, // Do not set up any stdio (perhaps the program is a GUI program) (only if debugserver launches the process)
|
|
{ "setsid", no_argument, NULL, 'S' }, // call setsid() to make debugserver run in its own session
|
|
{ "disable-aslr", no_argument, NULL, 'D' }, // Use _POSIX_SPAWN_DISABLE_ASLR to avoid shared library randomization
|
|
{ "working-dir", required_argument, NULL, 'W' }, // The working directory that the inferior process should have (only if debugserver launches the process)
|
|
{ "platform", required_argument, NULL, 'p' }, // Put this executable into a remote platform mode
|
|
{ "unix-socket", required_argument, NULL, 'u' }, // If we need to handshake with our parent process, an option will be passed down that specifies a unix socket name to use
|
|
{ "named-pipe", required_argument, NULL, 'P' },
|
|
{ "reverse-connect", no_argument, NULL, 'R' },
|
|
{ NULL, 0, NULL, 0 }
|
|
};
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
// main
|
|
//----------------------------------------------------------------------
|
|
int
|
|
main (int argc, char *argv[])
|
|
{
|
|
const char *argv_sub_zero = argv[0]; // save a copy of argv[0] for error reporting post-launch
|
|
|
|
g_isatty = ::isatty (STDIN_FILENO);
|
|
|
|
// ::printf ("uid=%u euid=%u gid=%u egid=%u\n",
|
|
// getuid(),
|
|
// geteuid(),
|
|
// getgid(),
|
|
// getegid());
|
|
|
|
|
|
// signal (SIGINT, signal_handler);
|
|
signal (SIGPIPE, signal_handler);
|
|
signal (SIGHUP, signal_handler);
|
|
|
|
g_remoteSP.reset (new RNBRemote ());
|
|
|
|
|
|
RNBRemote *remote = g_remoteSP.get();
|
|
if (remote == NULL)
|
|
{
|
|
RNBLogSTDERR ("error: failed to create a remote connection class\n");
|
|
return -1;
|
|
}
|
|
|
|
RNBContext& ctx = remote->Context();
|
|
|
|
int i;
|
|
int attach_pid = INVALID_NUB_PROCESS;
|
|
|
|
FILE* log_file = NULL;
|
|
uint32_t log_flags = 0;
|
|
// Parse our options
|
|
int ch;
|
|
int long_option_index = 0;
|
|
int debug = 0;
|
|
std::string compile_options;
|
|
std::string waitfor_pid_name; // Wait for a process that starts with this name
|
|
std::string attach_pid_name;
|
|
std::string arch_name;
|
|
std::string working_dir; // The new working directory to use for the inferior
|
|
std::string unix_socket_name; // If we need to handshake with our parent process, an option will be passed down that specifies a unix socket name to use
|
|
std::string named_pipe_path; // If we need to handshake with our parent process, an option will be passed down that specifies a named pipe to use
|
|
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.
|
|
bool no_stdio = false;
|
|
bool reverse_connect = false; // Set to true by an option to indicate we should reverse connect to the host:port supplied as the first debugserver argument
|
|
|
|
#if !defined (DNBLOG_ENABLED)
|
|
compile_options += "(no-logging) ";
|
|
#endif
|
|
|
|
RNBRunLoopMode start_mode = eRNBRunLoopModeExit;
|
|
|
|
char short_options[512];
|
|
uint32_t short_options_idx = 0;
|
|
|
|
// Handle the two case that don't have short options in g_long_options
|
|
short_options[short_options_idx++] = 'k';
|
|
short_options[short_options_idx++] = 't';
|
|
|
|
for (i=0; g_long_options[i].name != NULL; ++i)
|
|
{
|
|
if (isalpha(g_long_options[i].val))
|
|
{
|
|
short_options[short_options_idx++] = g_long_options[i].val;
|
|
switch (g_long_options[i].has_arg)
|
|
{
|
|
default:
|
|
case no_argument:
|
|
break;
|
|
|
|
case optional_argument:
|
|
short_options[short_options_idx++] = ':';
|
|
// Fall through to required_argument case below...
|
|
case required_argument:
|
|
short_options[short_options_idx++] = ':';
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
// NULL terminate the short option string.
|
|
short_options[short_options_idx++] = '\0';
|
|
|
|
#if __GLIBC__
|
|
optind = 0;
|
|
#else
|
|
optreset = 1;
|
|
optind = 1;
|
|
#endif
|
|
|
|
while ((ch = getopt_long_only(argc, argv, short_options, 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 'A':
|
|
if (optarg && optarg[0])
|
|
arch_name.assign(optarg);
|
|
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')
|
|
{
|
|
RNBLogSTDERR ("error: invalid pid option '%s'\n", optarg);
|
|
exit (4);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
attach_pid_name = optarg;
|
|
}
|
|
start_mode = eRNBRunLoopModeInferiorAttaching;
|
|
}
|
|
break;
|
|
|
|
// --waitfor=NAME
|
|
case 'w':
|
|
if (optarg && optarg[0])
|
|
{
|
|
waitfor_pid_name = optarg;
|
|
start_mode = eRNBRunLoopModeInferiorAttaching;
|
|
}
|
|
break;
|
|
|
|
// --waitfor-interval=USEC
|
|
case 'i':
|
|
if (optarg && optarg[0])
|
|
{
|
|
char *end = NULL;
|
|
waitfor_interval = strtoul(optarg, &end, 0);
|
|
if (end == NULL || *end != '\0')
|
|
{
|
|
RNBLogSTDERR ("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')
|
|
{
|
|
RNBLogSTDERR ("error: invalid waitfor-duration option value '%s'.\n", optarg);
|
|
exit (7);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'e':
|
|
g_detach_on_error = true;
|
|
|
|
case 'W':
|
|
if (optarg && optarg[0])
|
|
working_dir.assign(optarg);
|
|
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;
|
|
#ifdef WITH_SPRINGBOARD
|
|
else if (strcasestr(optarg, "spring") == optarg)
|
|
g_launch_flavor = eLaunchFlavorSpringBoard;
|
|
#endif
|
|
else
|
|
{
|
|
RNBLogSTDERR ("error: invalid TYPE for the --launch=TYPE (-x TYPE) option: '%s'\n", optarg);
|
|
RNBLogSTDERR ("Valid values TYPE are:\n");
|
|
RNBLogSTDERR (" auto Auto-detect the best launch method to use.\n");
|
|
RNBLogSTDERR (" posix Launch the executable using posix_spawn.\n");
|
|
RNBLogSTDERR (" fork Launch the executable using fork and exec.\n");
|
|
#ifdef WITH_SPRINGBOARD
|
|
RNBLogSTDERR (" 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)
|
|
setlinebuf(log_file);
|
|
}
|
|
|
|
if (log_file == NULL)
|
|
{
|
|
const char *errno_str = strerror(errno);
|
|
RNBLogSTDERR ("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(debug);
|
|
break;
|
|
|
|
case 't':
|
|
g_applist_opt = 1;
|
|
break;
|
|
|
|
case 'k':
|
|
g_lockdown_opt = 1;
|
|
break;
|
|
|
|
case 'r':
|
|
// Do nothing, native regs is the default these days
|
|
break;
|
|
|
|
case 'R':
|
|
reverse_connect = true;
|
|
break;
|
|
case 'v':
|
|
DNBLogSetVerbose(1);
|
|
break;
|
|
|
|
case 's':
|
|
ctx.GetSTDIN().assign(optarg);
|
|
ctx.GetSTDOUT().assign(optarg);
|
|
ctx.GetSTDERR().assign(optarg);
|
|
break;
|
|
|
|
case 'I':
|
|
ctx.GetSTDIN().assign(optarg);
|
|
break;
|
|
|
|
case 'O':
|
|
ctx.GetSTDOUT().assign(optarg);
|
|
break;
|
|
|
|
case 'E':
|
|
ctx.GetSTDERR().assign(optarg);
|
|
break;
|
|
|
|
case 'n':
|
|
no_stdio = true;
|
|
break;
|
|
|
|
case 'S':
|
|
// Put debugserver into a new session. Terminals group processes
|
|
// into sessions and when a special terminal key sequences
|
|
// (like control+c) are typed they can cause signals to go out to
|
|
// all processes in a session. Using this --setsid (-S) option
|
|
// will cause debugserver to run in its own sessions and be free
|
|
// from such issues.
|
|
//
|
|
// This is useful when debugserver is spawned from a command
|
|
// line application that uses debugserver to do the debugging,
|
|
// yet that application doesn't want debugserver receiving the
|
|
// signals sent to the session (i.e. dying when anyone hits ^C).
|
|
setsid();
|
|
break;
|
|
case 'D':
|
|
g_disable_aslr = 1;
|
|
break;
|
|
|
|
case 'p':
|
|
start_mode = eRNBRunLoopModePlatformMode;
|
|
break;
|
|
|
|
case 'u':
|
|
unix_socket_name.assign (optarg);
|
|
break;
|
|
|
|
case 'P':
|
|
named_pipe_path.assign (optarg);
|
|
break;
|
|
|
|
}
|
|
}
|
|
|
|
if (arch_name.empty())
|
|
{
|
|
#if defined (__arm__)
|
|
arch_name.assign ("arm");
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
DNBSetArchitecture (arch_name.c_str());
|
|
}
|
|
|
|
// if (arch_name.empty())
|
|
// {
|
|
// fprintf(stderr, "error: no architecture was specified\n");
|
|
// exit (8);
|
|
// }
|
|
// Skip any options we consumed with getopt_long_only
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
|
|
if (!working_dir.empty())
|
|
{
|
|
if (remote->Context().SetWorkingDirectory (working_dir.c_str()) == false)
|
|
{
|
|
RNBLogSTDERR ("error: working directory doesn't exist '%s'.\n", working_dir.c_str());
|
|
exit (8);
|
|
}
|
|
}
|
|
|
|
remote->Context().SetDetachOnError(g_detach_on_error);
|
|
|
|
remote->Initialize();
|
|
|
|
// It is ok for us to set NULL as the logfile (this will disable any logging)
|
|
|
|
if (log_file != NULL)
|
|
{
|
|
DNBLogSetLogCallback(FileLogCallback, 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_RNB_ALL;
|
|
|
|
DNBLogSetLogMask (log_flags);
|
|
}
|
|
else
|
|
{
|
|
// Enable DNB logging
|
|
DNBLogSetLogCallback(ASLLogCallback, NULL);
|
|
DNBLogSetLogMask (log_flags);
|
|
|
|
}
|
|
|
|
if (DNBLogEnabled())
|
|
{
|
|
for (i=0; i<argc; i++)
|
|
DNBLogDebug("argv[%i] = %s", i, argv[i]);
|
|
}
|
|
|
|
// as long as we're dropping remotenub in as a replacement for gdbserver,
|
|
// explicitly note that this is not gdbserver.
|
|
|
|
RNBLogSTDOUT ("%s-%g %sfor %s.\n",
|
|
DEBUGSERVER_PROGRAM_NAME,
|
|
DEBUGSERVER_VERSION_NUM,
|
|
compile_options.c_str(),
|
|
RNB_ARCH);
|
|
|
|
std::string host;
|
|
int port = INT32_MAX;
|
|
char str[PATH_MAX];
|
|
str[0] = '\0';
|
|
|
|
if (g_lockdown_opt == 0 && g_applist_opt == 0)
|
|
{
|
|
// Make sure we at least have port
|
|
if (argc < 1)
|
|
{
|
|
show_usage_and_exit (1);
|
|
}
|
|
// accept 'localhost:' prefix on port number
|
|
|
|
int items_scanned = ::sscanf (argv[0], "%[^:]:%i", str, &port);
|
|
if (items_scanned == 2)
|
|
{
|
|
host = str;
|
|
DNBLogDebug("host = '%s' port = %i", host.c_str(), port);
|
|
}
|
|
else
|
|
{
|
|
// No hostname means "localhost"
|
|
int items_scanned = ::sscanf (argv[0], "%i", &port);
|
|
if (items_scanned == 1)
|
|
{
|
|
host = "localhost";
|
|
DNBLogDebug("host = '%s' port = %i", host.c_str(), port);
|
|
}
|
|
else if (argv[0][0] == '/')
|
|
{
|
|
port = INT32_MAX;
|
|
strncpy(str, argv[0], sizeof(str));
|
|
}
|
|
else
|
|
{
|
|
show_usage_and_exit (2);
|
|
}
|
|
}
|
|
|
|
// We just used the 'host:port' or the '/path/file' arg...
|
|
argc--;
|
|
argv++;
|
|
|
|
}
|
|
|
|
// If we know we're waiting to attach, we don't need any of this other info.
|
|
if (start_mode != eRNBRunLoopModeInferiorAttaching &&
|
|
start_mode != eRNBRunLoopModePlatformMode)
|
|
{
|
|
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
|
|
{
|
|
RNBLogSTDERR ("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;
|
|
}
|
|
|
|
DNBLogDebug("Get args from remote protocol...");
|
|
start_mode = eRNBRunLoopModeGetStartModeFromRemoteProtocol;
|
|
}
|
|
else
|
|
{
|
|
start_mode = eRNBRunLoopModeInferiorLaunching;
|
|
// Fill in the argv array in the context from the rest of our args.
|
|
// Skip the name of this executable and the port number
|
|
for (int i = 0; i < argc; i++)
|
|
{
|
|
DNBLogDebug("inferior_argv[%i] = '%s'", i, argv[i]);
|
|
ctx.PushArgument (argv[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (start_mode == eRNBRunLoopModeExit)
|
|
return -1;
|
|
|
|
RNBRunLoopMode mode = start_mode;
|
|
char err_str[1024] = {'\0'};
|
|
|
|
while (mode != eRNBRunLoopModeExit)
|
|
{
|
|
switch (mode)
|
|
{
|
|
case eRNBRunLoopModeGetStartModeFromRemoteProtocol:
|
|
#ifdef WITH_LOCKDOWN
|
|
if (g_lockdown_opt)
|
|
{
|
|
if (!remote->Comm().IsConnected())
|
|
{
|
|
if (remote->Comm().ConnectToService () != rnb_success)
|
|
{
|
|
RNBLogSTDERR ("Failed to get connection from a remote gdb process.\n");
|
|
mode = eRNBRunLoopModeExit;
|
|
}
|
|
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());
|
|
|
|
remote->Comm().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;
|
|
remote->Comm().Read(buf);
|
|
}
|
|
remote->Comm().Disconnect(false);
|
|
mode = eRNBRunLoopModeExit;
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
// Start watching for remote packets
|
|
remote->StartReadRemoteDataThread();
|
|
}
|
|
}
|
|
}
|
|
else
|
|
#endif
|
|
if (port != INT32_MAX)
|
|
{
|
|
if (!ConnectRemote (remote, host.c_str(), port, reverse_connect, named_pipe_path.c_str(), unix_socket_name.c_str()))
|
|
mode = eRNBRunLoopModeExit;
|
|
}
|
|
else if (str[0] == '/')
|
|
{
|
|
if (remote->Comm().OpenFile (str))
|
|
mode = eRNBRunLoopModeExit;
|
|
}
|
|
|
|
if (mode != eRNBRunLoopModeExit)
|
|
{
|
|
RNBLogSTDOUT ("Got a connection, waiting for process information for launching or attaching.\n");
|
|
|
|
mode = RNBRunLoopGetStartModeFromRemote (remote);
|
|
}
|
|
break;
|
|
|
|
case eRNBRunLoopModeInferiorAttaching:
|
|
if (!waitfor_pid_name.empty())
|
|
{
|
|
// Set our end wait time if we are using a waitfor-duration
|
|
// option that may have been specified
|
|
struct timespec attach_timeout_abstime, *timeout_ptr = NULL;
|
|
if (waitfor_duration != 0)
|
|
{
|
|
DNBTimer::OffsetTimeOfDay(&attach_timeout_abstime, waitfor_duration, 0);
|
|
timeout_ptr = &attach_timeout_abstime;
|
|
}
|
|
nub_launch_flavor_t launch_flavor = g_launch_flavor;
|
|
if (launch_flavor == eLaunchFlavorDefault)
|
|
{
|
|
// Our default launch method is posix spawn
|
|
launch_flavor = eLaunchFlavorPosixSpawn;
|
|
|
|
#ifdef WITH_SPRINGBOARD
|
|
// 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);
|
|
bool ignore_existing = false;
|
|
RNBLogSTDOUT ("Waiting to attach to process %s...\n", waitfor_pid_name.c_str());
|
|
nub_process_t pid = DNBProcessAttachWait (waitfor_pid_name.c_str(), launch_flavor, ignore_existing, timeout_ptr, waitfor_interval, err_str, sizeof(err_str));
|
|
g_pid = pid;
|
|
|
|
if (pid == INVALID_NUB_PROCESS)
|
|
{
|
|
ctx.LaunchStatus().SetError(-1, DNBError::Generic);
|
|
if (err_str[0])
|
|
ctx.LaunchStatus().SetErrorString(err_str);
|
|
RNBLogSTDERR ("error: failed to attach to process named: \"%s\" %s\n", waitfor_pid_name.c_str(), err_str);
|
|
mode = eRNBRunLoopModeExit;
|
|
}
|
|
else
|
|
{
|
|
ctx.SetProcessID(pid);
|
|
mode = eRNBRunLoopModeInferiorExecuting;
|
|
}
|
|
}
|
|
else if (attach_pid != INVALID_NUB_PROCESS)
|
|
{
|
|
|
|
RNBLogSTDOUT ("Attaching to process %i...\n", attach_pid);
|
|
nub_process_t attached_pid;
|
|
mode = RNBRunLoopLaunchAttaching (remote, attach_pid, attached_pid);
|
|
if (mode != eRNBRunLoopModeInferiorExecuting)
|
|
{
|
|
const char *error_str = remote->Context().LaunchStatus().AsString();
|
|
RNBLogSTDERR ("error: failed to attach process %i: %s\n", attach_pid, error_str ? error_str : "unknown error.");
|
|
mode = eRNBRunLoopModeExit;
|
|
}
|
|
}
|
|
else if (!attach_pid_name.empty ())
|
|
{
|
|
struct timespec attach_timeout_abstime, *timeout_ptr = NULL;
|
|
if (waitfor_duration != 0)
|
|
{
|
|
DNBTimer::OffsetTimeOfDay(&attach_timeout_abstime, waitfor_duration, 0);
|
|
timeout_ptr = &attach_timeout_abstime;
|
|
}
|
|
|
|
RNBLogSTDOUT ("Attaching to process %s...\n", attach_pid_name.c_str());
|
|
nub_process_t pid = DNBProcessAttachByName (attach_pid_name.c_str(), timeout_ptr, err_str, sizeof(err_str));
|
|
g_pid = pid;
|
|
if (pid == INVALID_NUB_PROCESS)
|
|
{
|
|
ctx.LaunchStatus().SetError(-1, DNBError::Generic);
|
|
if (err_str[0])
|
|
ctx.LaunchStatus().SetErrorString(err_str);
|
|
RNBLogSTDERR ("error: failed to attach to process named: \"%s\" %s\n", waitfor_pid_name.c_str(), err_str);
|
|
mode = eRNBRunLoopModeExit;
|
|
}
|
|
else
|
|
{
|
|
ctx.SetProcessID(pid);
|
|
mode = eRNBRunLoopModeInferiorExecuting;
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
RNBLogSTDERR ("error: asked to attach with empty name and invalid PID.\n");
|
|
mode = eRNBRunLoopModeExit;
|
|
}
|
|
|
|
if (mode != eRNBRunLoopModeExit)
|
|
{
|
|
if (port != INT32_MAX)
|
|
{
|
|
if (!ConnectRemote (remote, host.c_str(), port, reverse_connect, named_pipe_path.c_str(), unix_socket_name.c_str()))
|
|
mode = eRNBRunLoopModeExit;
|
|
}
|
|
else if (str[0] == '/')
|
|
{
|
|
if (remote->Comm().OpenFile (str))
|
|
mode = eRNBRunLoopModeExit;
|
|
}
|
|
if (mode != eRNBRunLoopModeExit)
|
|
RNBLogSTDOUT ("Waiting for debugger instructions for process %d.\n", attach_pid);
|
|
}
|
|
break;
|
|
|
|
case eRNBRunLoopModeInferiorLaunching:
|
|
{
|
|
mode = RNBRunLoopLaunchInferior (remote,
|
|
ctx.GetSTDINPath(),
|
|
ctx.GetSTDOUTPath(),
|
|
ctx.GetSTDERRPath(),
|
|
no_stdio);
|
|
|
|
if (mode == eRNBRunLoopModeInferiorExecuting)
|
|
{
|
|
if (port != INT32_MAX)
|
|
{
|
|
if (!ConnectRemote (remote, host.c_str(), port, reverse_connect, named_pipe_path.c_str(), unix_socket_name.c_str()))
|
|
mode = eRNBRunLoopModeExit;
|
|
}
|
|
else if (str[0] == '/')
|
|
{
|
|
if (remote->Comm().OpenFile (str))
|
|
mode = eRNBRunLoopModeExit;
|
|
}
|
|
|
|
if (mode != eRNBRunLoopModeExit)
|
|
RNBLogSTDOUT ("Got a connection, launched process %s.\n", argv_sub_zero);
|
|
}
|
|
else
|
|
{
|
|
const char *error_str = remote->Context().LaunchStatus().AsString();
|
|
RNBLogSTDERR ("error: failed to launch process %s: %s\n", argv_sub_zero, error_str ? error_str : "unknown error.");
|
|
}
|
|
}
|
|
break;
|
|
|
|
case eRNBRunLoopModeInferiorExecuting:
|
|
mode = RNBRunLoopInferiorExecuting(remote);
|
|
break;
|
|
|
|
case eRNBRunLoopModePlatformMode:
|
|
if (port != INT32_MAX)
|
|
{
|
|
if (!ConnectRemote (remote, host.c_str(), port, reverse_connect, named_pipe_path.c_str(), unix_socket_name.c_str()))
|
|
mode = eRNBRunLoopModeExit;
|
|
}
|
|
else if (str[0] == '/')
|
|
{
|
|
if (remote->Comm().OpenFile (str))
|
|
mode = eRNBRunLoopModeExit;
|
|
}
|
|
|
|
if (mode != eRNBRunLoopModeExit)
|
|
mode = RNBRunLoopPlatform (remote);
|
|
break;
|
|
|
|
default:
|
|
mode = eRNBRunLoopModeExit;
|
|
case eRNBRunLoopModeExit:
|
|
break;
|
|
}
|
|
}
|
|
|
|
remote->StopReadRemoteDataThread ();
|
|
remote->Context().SetProcessID(INVALID_NUB_PROCESS);
|
|
RNBLogSTDOUT ("Exiting.\n");
|
|
|
|
return 0;
|
|
}
|