Print “javaabhigyan” with empty main() in C

Write a program that prints “javaabhigyan” with empty main() function.You are not allowed to write anything in main().

1.) One way of doing this is to apply GCC constructor attribute to a function so that it executes before main()

#include <stdio.h> 
  
/* Apply the constructor attribute to myStartupFun()  
   so that it is executed before main() */
void myStartupFun(void) __attribute__((constructor)); 
  
/* implementation of myStartupFun */
void myStartupFun(void) 
{ 
    printf("javaabhigyan"); 
} 
  
int main() 
{ 
} 

Output:
javaabhigyan

2.) In linux, just override the default definition of _start() function so that it would work as a custom startup code. See this article to understand more.

#include <stdio.h> 
#include <stdlib.h> 
  
int main(void) 
{ 
} 
  
// _start() function 
void _start(void) 
{ 
    printf("javaabhigyan"); 
  
    // Call main() function 
    int var = main(); 
    exit(var); 
} 

Now compile this by following command

gcc -nostartfiles -o file file.c

Output:
javaabhigyan