forked from OSchip/llvm-project
271 lines
8.8 KiB
C++
271 lines
8.8 KiB
C++
//===-- lldb-platform.cpp ---------------------------------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "lldb/lldb-python.h"
|
|
|
|
// C Includes
|
|
#include <errno.h>
|
|
#include <getopt.h>
|
|
#include <signal.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
// C++ Includes
|
|
|
|
// Other libraries and framework includes
|
|
#include "lldb/Core/Error.h"
|
|
#include "lldb/Core/ConnectionFileDescriptor.h"
|
|
#include "lldb/Core/ConnectionMachPort.h"
|
|
#include "lldb/Core/Debugger.h"
|
|
#include "lldb/Core/StreamFile.h"
|
|
#include "Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.h"
|
|
#include "Plugins/Process/gdb-remote/ProcessGDBRemoteLog.h"
|
|
using namespace lldb;
|
|
using namespace lldb_private;
|
|
|
|
//----------------------------------------------------------------------
|
|
// option descriptors for getopt_long_only()
|
|
//----------------------------------------------------------------------
|
|
|
|
int g_debug = 0;
|
|
int g_verbose = 0;
|
|
int g_stay_alive = 0;
|
|
|
|
static struct option g_long_options[] =
|
|
{
|
|
{ "debug", no_argument, &g_debug, 1 },
|
|
{ "verbose", no_argument, &g_verbose, 1 },
|
|
{ "stay-alive", no_argument, &g_stay_alive, 1 },
|
|
{ "log-file", required_argument, NULL, 'l' },
|
|
{ "log-flags", required_argument, NULL, 'f' },
|
|
{ "listen", required_argument, NULL, 'L' },
|
|
{ NULL, 0, NULL, 0 }
|
|
};
|
|
|
|
//----------------------------------------------------------------------
|
|
// Watch for signals
|
|
//----------------------------------------------------------------------
|
|
int g_sigpipe_received = 0;
|
|
void
|
|
signal_handler(int signo)
|
|
{
|
|
switch (signo)
|
|
{
|
|
case SIGPIPE:
|
|
g_sigpipe_received = 1;
|
|
break;
|
|
case SIGHUP:
|
|
// Use SIGINT first, if that does not work, use SIGHUP as a last resort.
|
|
// And we should not call exit() here because it results in the global destructors
|
|
// to be invoked and wreaking havoc on the threads still running.
|
|
Host::SystemLog(Host::eSystemLogWarning, "SIGHUP received, exiting lldb-platform...\n");
|
|
abort();
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
display_usage (const char *progname)
|
|
{
|
|
fprintf(stderr, "Usage:\n %s [--log-file log-file-path] [--log-flags flags] --listen port\n", progname);
|
|
exit(0);
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// main
|
|
//----------------------------------------------------------------------
|
|
int
|
|
main (int argc, char *argv[])
|
|
{
|
|
const char *progname = argv[0];
|
|
signal (SIGPIPE, signal_handler);
|
|
signal (SIGHUP, signal_handler);
|
|
int long_option_index = 0;
|
|
StreamSP log_stream_sp;
|
|
Args log_args;
|
|
Error error;
|
|
std::string listen_host_port;
|
|
int ch;
|
|
Debugger::Initialize();
|
|
|
|
// ConnectionMachPort a;
|
|
// ConnectionMachPort b;
|
|
//
|
|
// lldb::ConnectionStatus status;
|
|
// const char *bootstrap_service_name = "HelloWorld";
|
|
// status = a.BootstrapCheckIn(bootstrap_service_name, &error);
|
|
//
|
|
// if (status != eConnectionStatusSuccess)
|
|
// {
|
|
// fprintf(stderr, "%s", error.AsCString());
|
|
// return 1;
|
|
// }
|
|
// status = b.BootstrapLookup (bootstrap_service_name, &error);
|
|
// if (status != eConnectionStatusSuccess)
|
|
// {
|
|
// fprintf(stderr, "%s", error.AsCString());
|
|
// return 2;
|
|
// }
|
|
//
|
|
// if (a.Write ("hello", 5, status, &error) == 5)
|
|
// {
|
|
// char buf[32];
|
|
// memset(buf, 0, sizeof(buf));
|
|
// if (b.Read (buf, 5, status, &error))
|
|
// {
|
|
// printf("read returned bytes: %s", buf);
|
|
// }
|
|
// else
|
|
// {
|
|
// fprintf(stderr, "%s", error.AsCString());
|
|
// return 4;
|
|
// }
|
|
// }
|
|
// else
|
|
// {
|
|
// fprintf(stderr, "%s", error.AsCString());
|
|
// return 3;
|
|
// }
|
|
|
|
while ((ch = getopt_long_only(argc, argv, "l:f:L:", 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 'l': // Set Log File
|
|
if (optarg && optarg[0])
|
|
{
|
|
if ((strcasecmp(optarg, "stdout") == 0) || (strcmp(optarg, "/dev/stdout") == 0))
|
|
{
|
|
log_stream_sp.reset (new StreamFile (stdout, false));
|
|
}
|
|
else if ((strcasecmp(optarg, "stderr") == 0) || (strcmp(optarg, "/dev/stderr") == 0))
|
|
{
|
|
log_stream_sp.reset (new StreamFile (stderr, false));
|
|
}
|
|
else
|
|
{
|
|
FILE *log_file = fopen(optarg, "w");
|
|
if (log_file)
|
|
{
|
|
setlinebuf(log_file);
|
|
log_stream_sp.reset (new StreamFile (log_file, true));
|
|
}
|
|
else
|
|
{
|
|
const char *errno_str = strerror(errno);
|
|
fprintf (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_args.AppendArgument(optarg);
|
|
break;
|
|
|
|
case 'L':
|
|
listen_host_port.append (optarg);
|
|
break;
|
|
|
|
case 'h': /* fall-through is intentional */
|
|
case '?':
|
|
display_usage(progname);
|
|
break;
|
|
}
|
|
}
|
|
// Print usage and exit if no listening port is specified.
|
|
if (listen_host_port.empty())
|
|
display_usage(progname);
|
|
|
|
if (log_stream_sp)
|
|
{
|
|
if (log_args.GetArgumentCount() == 0)
|
|
log_args.AppendArgument("default");
|
|
ProcessGDBRemoteLog::EnableLog (log_stream_sp, 0,log_args.GetConstArgumentVector(), log_stream_sp.get());
|
|
}
|
|
|
|
// Skip any options we consumed with getopt_long_only
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
|
|
do {
|
|
GDBRemoteCommunicationServer gdb_server (true);
|
|
if (!listen_host_port.empty())
|
|
{
|
|
std::unique_ptr<ConnectionFileDescriptor> conn_ap(new ConnectionFileDescriptor());
|
|
if (conn_ap.get())
|
|
{
|
|
for (int j = 0; j < listen_host_port.size(); j++)
|
|
{
|
|
char c = listen_host_port[j];
|
|
if (c > '9' || c < '0')
|
|
printf("WARNING: passing anything but a number as argument to --listen will most probably make connecting impossible.\n");
|
|
}
|
|
std::auto_ptr<ConnectionFileDescriptor> conn_ap(new ConnectionFileDescriptor());
|
|
if (conn_ap.get())
|
|
{
|
|
std::string connect_url ("listen://");
|
|
connect_url.append(listen_host_port.c_str());
|
|
|
|
printf ("Listening for a connection on %s...\n", listen_host_port.c_str());
|
|
if (conn_ap->Connect(connect_url.c_str(), &error) == eConnectionStatusSuccess)
|
|
{
|
|
printf ("Connection established.\n");
|
|
gdb_server.SetConnection (conn_ap.release());
|
|
}
|
|
}
|
|
}
|
|
|
|
if (gdb_server.IsConnected())
|
|
{
|
|
// After we connected, we need to get an initial ack from...
|
|
if (gdb_server.HandshakeWithClient(&error))
|
|
{
|
|
bool interrupt = false;
|
|
bool done = false;
|
|
while (!interrupt && !done)
|
|
{
|
|
if (!gdb_server.GetPacketAndSendResponse (UINT32_MAX, error, interrupt, done))
|
|
break;
|
|
}
|
|
|
|
if (error.Fail())
|
|
{
|
|
fprintf(stderr, "error: %s\n", error.AsCString());
|
|
}
|
|
}
|
|
else
|
|
{
|
|
fprintf(stderr, "error: handshake with client failed\n");
|
|
}
|
|
}
|
|
}
|
|
} while (g_stay_alive);
|
|
|
|
Debugger::Terminate();
|
|
|
|
fprintf(stderr, "lldb-platform exiting...\n");
|
|
|
|
return 0;
|
|
}
|