Debugging C/C++ Language Not Hitting Breakpoints - c++

Question

I have the following file overflow.c that I'm trying to debug through breakpoints in Visual Studio Code macOS:
#include <stdio.h>
int main(void) {
int n = 1;
for (int i = 0; i < 64; i++)
{
printf("%i\n", n);
n = n * 2;
}
return 0;
}
I've built it by typing make overflow in the terminal, which returns
cc overflow.o -o overflow
And I can do ./overflow in the terminal to run it, which works. I have the C/C++ extension by Microsoft installed. My launch.json looks like the following:
{
"version": "0.2.0",
"configurations": [
{
"name": "C Run",
"type": "cppdbg",
"request": "launch",
"program": "${workspaceRoot}/overflow",
"args": [],
"stopAtEntry": true,
"cwd": "${workspaceRoot}",
"environment": [],
"externalConsole": false,
"MIMode": "lldb"
}
]
}
When I debug using the "C Run" configuration, it runs my entire code without hitting any of my breakpoints (found here)
The "C Attach" is for attaching to an already-running app, which isn't applicable here. I've added the following to my PATH:
PATH="/Applications/Xcode.app/Contents/Developer/usr/bin:${PATH}"
My debug console after debugging "C Run" config loads bunch of symbols, returns output from my print statements, and ends with
The program '/Users/ahlam/Downloads/workspace/overflow' has exited with code 0 (0x00000000).
EDIT: I've also tried it with C++ and it has the same behavior. Made a hello.cpp, built using g++ hello.cpp and debugging just ran the entire code without hitting any breakpoints.
Any help is appreciated.

Answer 1

You need to generate source-level debug information, which you can do by using the -g flag in clang:
clang -g overflow.c -o overflow
Do that instead of make overflow. You'll see a folder called overflow.dSYM in your directory. Debugging should now work.