diff options
Diffstat (limited to 'lib/csu/i386-elf/crt1_s.S')
-rw-r--r-- | lib/csu/i386-elf/crt1_s.S | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/lib/csu/i386-elf/crt1_s.S b/lib/csu/i386-elf/crt1_s.S new file mode 100644 index 0000000..17ac0e3 --- /dev/null +++ b/lib/csu/i386-elf/crt1_s.S @@ -0,0 +1,54 @@ +/*- + * Copyright 2009 Konstantin Belousov. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#include <machine/asm.h> +__FBSDID("$FreeBSD$"); + + .text + .align 4 + .globl _start + .type _start, @function +_start: + .cfi_startproc + xorl %ebp,%ebp + pushl %ebp + .cfi_def_cfa_offset 4 + movl %esp,%ebp + .cfi_offset %ebp,-8 + .cfi_def_cfa_register %ebp + andl $0xfffffff0,%esp # align stack + leal 8(%ebp),%eax + subl $4,%esp + pushl %eax # argv + pushl 4(%ebp) # argc + pushl %edx # rtld cleanup + call _start1 + int3 + .cfi_endproc + .size _start, . - _start + + .section .note.GNU-stack,"",%progbits |