diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/init-first.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/init-first.S | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/init-first.S b/sysdeps/unix/sysv/linux/i386/init-first.S new file mode 100644 index 0000000000..3c0c185fb7 --- /dev/null +++ b/sysdeps/unix/sysv/linux/i386/init-first.S @@ -0,0 +1,84 @@ +/* Initialization code run first thing by the ELF startup code. + For i386/Linux. +Copyright (C) 1995 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +#include <sysdep.h> + + .text + + /* Called from start.S. Not: there is no value in %ebx. */ + +ENTRY (__libc_init_first) + + /* Make sure we are not using iBSC2 personality. */ + movl $SYS_ify (personality), %eax + xorl %ebx, %ebx + int $0x80 + +#ifdef PIC + /* Set control work of FPU. */ + call .L0 +.L0: popl %ebx + addl $_GLOBAL_OFFSET_TABLE_+[.-.L0], %ebx + movzwl C_SYMBOL_NAME(___fpu_control@GOT)(%ebx), %eax +#else + movzwl ___fpu_control, %eax +#endif + pushl %eax + call JUMPTARGET(__setfpucw) + addl $4, %esp + + /* That is all for now. */ + ret + + + /* This is only a dummy function for the list below. */ + .type _dummy_exit, @function +C_LABEL(_dummy_exit) + ret + + + .section .init,"ax",@progbits + movl 16(%ebp), %edx /* envp */ + movl 12(%ebp), %ecx /* argv */ + movl 8(%ebp), %eax /* argc */ + pushl %edx + pushl %ecx + pushl %eax + + call JUMPTARGET(__libc_init) + + addl $12, %esp + + + /* Make sure __libc_subinit section is always present. */ + .section __libc_subinit, "a", @progbits + .align 4 + .type __elf_set___libc_subinit_element__dummy_exit__, @object + .size __elf_set___libc_subinit_element__dummy_exit__, 4 +__elf_set___libc_subinit_element__dummy_exit__: + .long _dummy_exit + + /* Make sure __libc_atexit section is always present. */ + .section __libc_atexit, "a", @progbits + .align 4 + .type __elf_set___libc_atexit_element__dummy_exit__, @object + .size __elf_set___libc_atexit_element__dummy_exit__, 4 +__elf_set___libc_atexit_element__dummy_exit__: + .long _dummy_exit |