When I try to use cdt-gdb-vscode to achieve debugging of cpp files in Theia with GDB, the code doesn’t break at breakpoint, the breakpoint is faded and when I hover over a message saying r -break-insert: Unknown option ``-source’’ is shown . I use the below Launch.json configuratoin
{
“version”:“0.2.0”,
“configurations”:
[
{ “type”: “gdb”,
“request”: “launch”,
“name”: “Debug (GDB)”,
“program”: “${workspaceFolder}\HelloWorld.exe”
}
]
}
Error (On hover near breakpoint):
Related
VSCode won't show me error in C++ unless I save the file or do Command Pallete -> C/C++: Run Code Analysis on Active File.
It works properly in JS and Python, so I am 100% sure that it is a language-specific problem.
For example in Python/JS
Shows me error immediately
in C/C++
Error does not show up
Error shows up only after I save/run code analysis
I turned error squiggles on and checked IntelliSense settings more than 100 times.
There is a similar question for address sanitizers, but for thread sanitizers, it doesn't work, I have tried to break on __sanitizer_print_stack_trace, which doesn't work either.
Run the program under GDB, set breakpoints on exit and _exit. On Linux, also set catch syscall exit_group.
set halt_on_error=1 in TSAN_OPTIONS to ask thread sanitizer to exit on first error:
(gdb) set env TSAN_OPTIONS=halt_on_error=1
(gdb) run
... error should be reported and one of the breakpoints should fire.
Profit.
P.S. When the breakpoint is hit, use GDB where command to see how the error is reported. Setting a breakpoint on some kind of __tsan_report_error that is likely on the stack will probably work even without setting halt_on_error.
The first time I enabled Thread Sanitizer on my project, Xcode helpfully added a breakpoint for me in the Breakpoint Navigator. But I deleted it when I was done testing. Now I need it again and Xcode didn't create it for me when I enabled Thread Sanitizer again.
Note that I am using Xcode 11.0 here.
To manually re-create this breakpoint, you need to have the Breakpoint Navigator open. Then click the plus button (+) at the bottom-left of the navigator and select Runtime Issue Breakpoint from the pop-up menu. This adds the breakpoint to the navigator, and a window appears.
From the Type drop-down list, select Thread Sanitizer.
There you go! Silly that this option is buried way down there. But I also found it helpful to note that there are more options for different kinds of breakpoints available from that plus button menu than there are from the main Xcode drop-down menu Debug > Breakpoints.
While I was debugging a c code, my Vscode debugger for gcc showed a error like this:
'Unable to open 'test.c': Unable to read file(Error:File not found(C:\mycode\C:\mycode\test.c))'.
So why my file path exists a repetition? And how to fix it?
I had only installed these plugins:
C/C++
C++ Intellisense
Change your tasks.json from "args":[ "${file} ] to ${relativeFile},and delete "cwd" or change it to ${workspaceFolder}.
I am using Code::Blocks IDE which is open source IDE providing multiple languages.
It is using GCC compiler.
I want to do line by line debugging of program.
Have you any about that?
You can use the "Step Into" command in the "Debug" menu which should start debugging and stop at the first line. Then continue through using the "Next Line" command (also in the "Debug" menu).
If that doesn't work as intended, you can set a breakpoint (by clicking in the left 'gutter', or 'margin') at the first line of your app, and start the debugger from the "Debug" menu, and then use the "Next Line" command in the "Debug" menu.
The shortcut keys vary based on your settings but should be listed alongside the menu command, and makes 'step'ping easier.
Since you're using gcc to compile, you can specify the -g parameter to include debugging symbols, and invoke gdb from the a command shell with the compiled binary as an argument: gdb <yourapp>.
(If [n]curses is installed, specify -tui for a more pleasing interface: gdb -tui <yourapp>.
Once in gdb, the command start will start debugging and stop automatically at main(). You can then step thru with the step command, and quit to exit.
You can always man gdb...
GCC's optimization sometimes makes debugging not easy. To improve your debugging experience, make sure you set optimization to off or to a low level via -O0 or -O1.
Additionally, make sure you have all debug information included in the binary: -g3.
Please go through these steps below:
At first click on debug Menu bar : (Debug-> Debugging windows-> Watches). Now your debugging window is on and the window will be shown at the left corner.
Add breakpoint just clicking left portion of the mouse at those lines you want to debug or test.
Again click on (Debug-> start/continue) It will show a console window. Put input on it. Now press Enter button.
Click on (Debug-> Next line) or press F7 for line by line debugging.
Happpy Coding !
I am very new to work c++ Programs with Netbeans IDE in Ubuntu. I wrote a simple Hello World Program and tried to debug it using step Into. When I Click Step Into Option From Debug Menu I got new window opened in the name of " Diassembly(main) " . The Debug process didn't reach my source code line at any way. I repeatedly click Step Into Function At last the process got end Without Tracing my source code line. But In the Debug output window I got the Correct Result.
#include <iostream>
using namespace std;
int main()
{
cout<<"Hello";
cout<<"World";
}
Why This process Control goes to the Diassembly (main) window ? How to rectify this problem ?
You must compile with -g option, otherwise the debugger won't be able to stop on a breakpoint. As for disassembling window - I can't reproduce that (I'm on Netbeans 7.4 in Ubuntu 13). You should just close the window if you don't need it.
First, you have to toggle a break point in your code by clicking on the line number of the line you want to stop in source window, if you did not. Then hit Debug.
Don't step into function that you not build from source, just step over it.
Pehaps that there is an answer here (i can't comment sorry)
"No source available for main()" error when debugging simple C++ in Eclipse with gdb