crt/arm/crt1.s

   1 .weak _init
   2 .weak _fini
   3 .global _start
   4 .type _start,%function
   5 _start:
   6         mov fp,#0
   7         mov lr,#0
   8         ldr a2,[sp],#4
   9         mov a3,sp
  10         ldr a4,=_fini
  11         str fp,[sp,#-4]!
  12         str a1,[sp,#-4]!
  13         str a4,[sp,#-4]!
  14         ldr a4,=_init
  15         ldr a1,=main
  16         bl __libc_start_main
  17 1:      b 1b