mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-06 03:30:06 +00:00
a55400166d
* sysdeps/sparc/sparc32/elf.S: Rewrite for __libc_start_main. * sysdeps/sparc/sparc64/elf.S: Likewise. 1998-04-06 Richard Henderson <rth@cygnus.com>
61 lines
1.9 KiB
ArmAsm
61 lines
1.9 KiB
ArmAsm
/* Startup code for elf32-sparc
|
|
Copyright (C) 1997, 1998 Free Software Foundation, Inc.
|
|
Contributed by Richard Henderson <richard@gnu.ai.mit.edu>, 1997.
|
|
|
|
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>
|
|
|
|
|
|
.section ".text"
|
|
.align 4
|
|
.global _start
|
|
.type _start,#function
|
|
_start:
|
|
|
|
/* Terminate the stack frame, and reserve space for functions to
|
|
drop their arguments. */
|
|
mov %g0, %fp
|
|
sub %sp, 6*4, %sp
|
|
|
|
/* Extract the arguments and environment as encoded on the stack. The
|
|
argument info starts after one register window (16 words) past the SP. */
|
|
ld [%sp+22*4], %o1
|
|
add %sp, 23*4, %o2
|
|
|
|
/* Load the addresses of the user entry points. */
|
|
sethi %hi(main), %o0
|
|
sethi %hi(_init), %o3
|
|
sethi %hi(_fini), %o4
|
|
or %o0, %lo(main), %o0
|
|
or %o3, %lo(_init), %o3
|
|
or %o4, %lo(_fini), %o4
|
|
|
|
/* When starting a binary via the dynamic linker, %g1 contains the
|
|
address of the shared library termination function, which will be
|
|
registered with atexit(). If we are statically linked, this will
|
|
be NULL. */
|
|
mov %g1, %o5
|
|
|
|
/* Let libc do the rest of the initialization, and call main. */
|
|
call __libc_start_main
|
|
nop
|
|
|
|
/* Die very horribly if exit returns. */
|
|
unimp
|
|
|
|
.size _start, .-_start
|