Cannot find entry symbol _start

Question

My c code on compiling on gcc is giving the error Cannot find entry symbol _start defaulting to 00000. Can anyone tell me why and how to correct it?

The com

Answer 1

The only reason the compiler threw the above error is because the start code(_start function) generated by the OS for running your code cannot find the default or registered function main. So either you can use _start function instead of main function but the compilation command should be gcc -nostartfiles filename.c but using _start there are a lot of exceptions so better to use main instead.