debugging

问题 I have a method which returns a block. I want to add a breakpoint inside the block. In Xcode adding a breakpoint on a line that's inside the block causes execution to pause when the method is returned and not when the block is executed. How do I add a breakpoint inside a block? 回答1: I had the same difficulty, until I tried using Xcode 4's LLDB debugger (go to Product>Edit Scheme to turn it on). Perhaps you'll have better luck with it. 回答2: From the documentation You can set breakpoints and

问题 I want to use default Qt message handler while logging messages to a log file except qDebug. Here my solution, do you have any suggestion or what are the possible problems with this implementation? Header: #ifndef QLOGGER_H #define QLOGGER_H #include <QtCore/QObject> #include <QtCore/QFile> #include <QtCore/QDateTime> class QLogger : public QObject { Q_OBJECT public: QLogger(); ~QLogger(); static void start(); static void finish(); static QString filename; private: static void

问题 I have a main C++ app built in Visual Studio 2005, called A.exe. It spawns a child process, B.exe. I run process A in the debugger by hitting F5 -- the only way I know to hit breakpoints in process B is to wait for A to kick it off, then run Debug -> Attach to Process, and manually select B.exe. This doesn't work very well if I need to debug initialization code in process B -- I have to start putting in 10 second sleeps at the beginning. Is there some trick in the vs2005 GUI that I'm missing?

问题 I'm looking for a way to read the edx registry at a certain address like asked in this question: Read eax register Although my solution needs to be in C# and I tried to make it, what I got at this moment is: public static IntPtr GetEdx(IntPtr address, Process process) { const uint DBG_EXCEPTION_NOT_HANDLED = 0x80010001; const uint EXCEPTION_SINGLE_STEP = 0x80000004; const int DBG_CONTINUE = 0x00010002; // Seems to work better than DBG_EXCEPTION_NOT_HANDLED //DebugSetProcessKillOnExit(0);

问题 I am trying to understand kernel bootup sequence step by step using GDB in qemu environment. Below is my setting: In one terminal im running ~/Qemu_arm/bin/qemu-system-arm -M vexpress-a9 -dtb ./arch/arm/boot/dts/vexpress-v2p-ca9.dtb -kernel ./arch/arm/boot/zImage -append "root=/dev/mmcblk0 console=ttyAMA0" -sd ../Images/RootFS.ext3 -serial stdio -s -S In other terminal arm-none-linux-gnueabi-gdb vmlinux Reading symbols from vmlinux...done. (gdb) target remote :1234 Remote debugging using

问题 I'm sort of new to developing Asp.net webapplication projects while running them on a local IIS. Till now I used the 'Use Visual Studio Development Server' option. I'm using Visual Studio 2010 Beta 2. Edit: less complex sample code Following code sample: List<string> _list = new List<string>(); _list.Add("asd"); _list.Add("asd2"); _list.Add("asd3"); Now I want to debug / step through some line of codes with _list . While using 'Use Visual Studio Development Server' I can see the contents of

问题 I have this line of code at domain.xml: <java-config classpath-suffix="" debug-enabled="false" debug-options="-Xdebug -Xrunjdwp:transport=dt_socket,server=n,suspend=y,address=9009" env-classpath-ignored="true" java-home="${com.sun.aas.javaRoot}" javac-options="-g" rmic-options="-iiop -poa -alwaysgenerate -keepgenerated -g" system-classpath=""> If I start the domain there is no error. However I want to get debug feature so I changed this part like this: debug-enabled="true" When I want to

问题 I have a simple android project that I am trying to debug inside of Eclipse. When I run it in debug mode and use the "Step Over" button, it frequently seems to want to go into Android code (I don't want it to do this, just as a C debugger will not go into libc). I get a screen that comes up which looks similar to: Class File Editor Source not found: The JAR file blahblah/android.jar has no source attachment. You can attach the source by clicking attach source I don't want it to go into

问题 I am seeing the following error in the event log. It is coming from our ASP.Net application. I am having trouble tracking down what is causing the error. Any suggestions appreciated! OS : Windows Server 2000 WebServer : IIS 6 Application : ASP.Net v3.5 Error Log [MachineName] has logged the following Error for IIS Details: ComputerName=[ComputerName] User=Not specified Logfile=Application Type=Error EventType=1 SourceName=ASP.NET 2.0.50727.0 Category=0 CategoryString=Not specified EventCode

问题 I am trying to figure out why this atom package https://github.com/AtomLinter/linter-elixirc/ misbehaves. Its author said I should set a breakpoint in some function of the package to see what's going on there. I have no idea how to do that while running atom. Here is the comment I am talking about: https://github.com/AtomLinter/linter-elixirc/issues/63#issuecomment-214916262 回答1: When you're in Atom, hitting Ctrl+Alt+I (or View -> Developer -> Toggle Developer Tools) will open developer tools