github.com/afumu/libc@v0.0.6/musl/crt/rcrt1.c (about)

     1  #define START "_start"
     2  #define _dlstart_c _start_c
     3  #include "../ldso/dlstart.c"
     4  
     5  int main();
     6  weak void _init();
     7  weak void _fini();
     8  int __libc_start_main(int (*)(), int, char **,
     9  	void (*)(), void(*)(), void(*)());
    10  
    11  hidden void __dls2(unsigned char *base, size_t *sp)
    12  {
    13  	__libc_start_main(main, *sp, (void *)(sp+1), _init, _fini, 0);
    14  }