mirror of
https://github.com/mongodb/mongo.git
synced 2024-11-30 00:56:44 +01:00
60 lines
1.9 KiB
C++
60 lines
1.9 KiB
C++
// debug_util.cpp
|
|
|
|
/* Copyright 2009 10gen Inc.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include "stdafx.h"
|
|
#include "../db/cmdline.h"
|
|
#include "../db/jsobj.h"
|
|
|
|
namespace mongo {
|
|
|
|
#if defined(_DEBUG) && !defined(_WIN32)
|
|
/* Magic gdb trampoline
|
|
* Do not call directly! call setupSIGTRAPforGDB()
|
|
* Assumptions:
|
|
* 1) gdbserver is on your path
|
|
* 2) You have run "handle SIGSTOP noprint" in gdb
|
|
* 3) cmdLine.port + 2000 is free
|
|
*/
|
|
void launchGDB(int){
|
|
// Don't come back here
|
|
signal(SIGTRAP, SIG_IGN);
|
|
|
|
int newPort = cmdLine.port + 2000;
|
|
string newPortStr = "localhost:" + BSONObjBuilder::numStr(newPort);
|
|
string pidToDebug = BSONObjBuilder::numStr(getpid());
|
|
|
|
cout << "\n\n\t**** Launching gdbserver on " << newPortStr << " ****" << endl << endl;
|
|
if (fork() == 0){
|
|
//child
|
|
execlp("gdbserver", "gdbserver", "--attach", newPortStr.c_str(), pidToDebug.c_str(), NULL);
|
|
perror(NULL);
|
|
}else{
|
|
//parent
|
|
raise(SIGSTOP); // pause all threads until gdb connects and continues
|
|
raise(SIGTRAP); // break inside gdbserver
|
|
}
|
|
}
|
|
|
|
void setupSIGTRAPforGDB(){
|
|
assert( signal(SIGTRAP , launchGDB ) != SIG_ERR );
|
|
}
|
|
#else
|
|
void setupSIGTRAPforGDB() {
|
|
}
|
|
#endif
|
|
}
|