DemiMarie updated this revision to Diff 108214.
DemiMarie added a comment.
Actually use socketpair :)
https://reviews.llvm.org/D33213
Files:
source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
tools/lldb-server/lldb-gdbserver.cpp
Index: tools/lldb-server/lldb-gdbserver.cpp
===================================================================
--- tools/lldb-server/lldb-gdbserver.cpp
+++ tools/lldb-server/lldb-gdbserver.cpp
@@ -106,6 +106,7 @@
// than llgs listening for a connection from address on port.
{"setsid", no_argument, NULL,
'S'}, // Call setsid() to make llgs run in its own session.
+ {"fd", required_argument, NULL, 'F'},
{NULL, 0, NULL, 0}};
//----------------------------------------------------------------------
@@ -132,13 +133,13 @@
"[--log-file log-file-name] "
"[--log-channels log-channel-list] "
"[--setsid] "
+ "[--fd file-descriptor]"
"[--named-pipe named-pipe-path] "
"[--native-regs] "
"[--attach pid] "
"[[HOST]:PORT] "
"[-- PROGRAM ARG1 ARG2 ...]\n",
progname, subcommand);
- exit(0);
}
void handle_attach_to_pid(GDBRemoteCommunicationServerLLGS &gdb_server,
@@ -232,10 +233,31 @@
GDBRemoteCommunicationServerLLGS &gdb_server,
bool reverse_connect, const char *const host_and_port,
const char *const progname, const char *const subcommand,
- const char *const named_pipe_path, int unnamed_pipe_fd) {
+ const char *const named_pipe_path, int unnamed_pipe_fd,
+ int connection_fd) {
Status error;
- if (host_and_port && host_and_port[0]) {
+ std::unique_ptr<Connection> connection_up;
+ if (connection_fd != -1) {
+ // Build the connection string.
+ char connection_url[512];
+ snprintf(connection_url, sizeof(connection_url), "fd://%d", connection_fd);
+
+ // Create the connection.
+ connection_up.reset(new ConnectionFileDescriptor);
+ auto connection_result = connection_up->Connect(connection_url, &error);
+ if (connection_result != eConnectionStatusSuccess) {
+ fprintf(stderr, "error: failed to connect to client at '%s' "
+ "(connection status: %d)",
+ connection_url, static_cast<int>(connection_result));
+ exit(-1);
+ }
+ if (error.Fail()) {
+ fprintf(stderr, "error: failed to connect to client at '%s': %s",
+ connection_url, error.AsCString());
+ exit(-1);
+ }
+ } else if (host_and_port && host_and_port[0]) {
// Parse out host and port.
std::string final_host_and_port;
std::string connection_host;
@@ -255,7 +277,6 @@
connection_portno = StringConvert::ToUInt32(connection_port.c_str(), 0);
}
- std::unique_ptr<Connection> connection_up;
if (reverse_connect) {
// llgs will connect to the gdb-remote client.
@@ -328,14 +349,14 @@
}
connection_up.reset(conn);
}
- error = gdb_server.InitializeConnection(std::move(connection_up));
- if (error.Fail()) {
- fprintf(stderr, "Failed to initialize connection: %s\n",
- error.AsCString());
- exit(-1);
- }
- printf("Connection established.\n");
}
+ error = gdb_server.InitializeConnection(std::move(connection_up));
+ if (error.Fail()) {
+ fprintf(stderr, "Failed to initialize connection: %s\n",
+ error.AsCString());
+ exit(-1);
+ }
+ printf("Connection established.\n");
}
//----------------------------------------------------------------------
@@ -364,6 +385,7 @@
log_channels; // e.g. "lldb process threads:gdb-remote default:linux all"
int unnamed_pipe_fd = -1;
bool reverse_connect = false;
+ int connection_fd = -1;
// ProcessLaunchInfo launch_info;
ProcessAttachInfo attach_info;
@@ -413,6 +435,10 @@
reverse_connect = true;
break;
+ case 'F':
+ connection_fd = StringConvert::ToUInt32(optarg, -1);
+ break;
+
#ifndef _WIN32
case 'S':
// Put llgs into a new session. Terminals group processes
@@ -472,7 +498,8 @@
argc -= optind;
argv += optind;
- if (argc == 0) {
+ if (argc == 0 && connection_fd == -1) {
+ fputs("No arguments\n", stderr);
display_usage(progname, subcommand);
exit(255);
}
@@ -501,7 +528,7 @@
ConnectToRemote(mainloop, gdb_server, reverse_connect, host_and_port,
progname, subcommand, named_pipe_path.c_str(),
- unnamed_pipe_fd);
+ unnamed_pipe_fd, connection_fd);
if (!gdb_server.IsConnected()) {
fprintf(stderr, "no connection information provided, unable to run\n");
Index: source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
===================================================================
--- source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
+++ source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
@@ -3289,7 +3289,7 @@
}
return error;
}
-#if defined(__APPLE__)
+#if !defined(_WIN32)
#define USE_SOCKETPAIR_FOR_LOCAL_CONNECTION 1
#endif
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