banan-os/userspace/libraries/LibC/arch/i686/crt0.S

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.section .text
.global _start
_start:
pushl $0
pushl %edi
pushl %esi
pushl %edx
# STACK LAYOUT
# null
# argc
# argv
# envp
xorl %ebp, %ebp
# init libc (envp already as argument)
call _init_libc
# call global constructors
call _init
# call main
movl 0(%esp), %eax
xchgl %eax, 8(%esp)
movl %eax, (%esp)
call main
subl $12, %esp
pushl %eax
call exit
.size _start, . - _start