gcc cannot find _start

Asked Apr 16 '21 at 15:55

Active Apr 16 '21 at 15:55

Viewed 28 times

When compiling the code below with

gcc -nostdlib main.cpp

I get the following error

/usr/bin/ld: warning: cannot find entry symbol _start; defaulting to 0000000000001000

I don't understand why the linker can find my _start function. I've seen examples online where people seem to be defining _start like below or defining it in assembly. What am I missing?

main.cpp:

int main() {
   return 0;
}

void _start()
{
   main();
}

asked Apr 16 '21 at 15:55

segmentation_fault

C++ does name mangling, so the name in the object file is not just `_start`. – Barmar Apr 16 '21 at 15:58
1

Try declaring it as `extern "C"` to prevent mangling. – Barmar Apr 16 '21 at 15:58
That was it,Thanks! If you make an answer I'll accept it. – segmentation_fault Apr 16 '21 at 16:20

gcc cannot find _start

0 Answers0