klibc/klibc/arch/i386/crt0.S

   1 #
   2 # arch/i386/crt0.S
   3 #
   4 # Does arch-specific initialization and invokes __libc_init
   5 # with the appropriate arguments.
   6 #
   7 # See __static_init.c or __shared_init.c for the expected
   8 # arguments.
   9 #
  10
  11         .text
  12         .align 4
  13         .type _start,@function
  14         .globl _start
  15 _start:
  16         # Save the address of the ELF argument array
  17         movl %esp,%eax          # Address of ELF arguments
  18         # Set up a faux stack frame for the benefit of gdb
  19         xorl %ebp,%ebp
  20         push %ebp               # Keep gdb from getting confused
  21         push %ebp               # Keep gdb from getting confused
  22         # Push the arguments and called __libc_init()
  23 #ifndef REGPARM
  24         push %edx               # atexit() function
  25         push %eax               # ELF array
  26 #endif
  27         call __libc_init
  28         # If __libc_init returns, problem...
  29         ud2
  30         hlt
  31
  32         .size _start, .-_start
  33