|
Packit |
6c4009 |
/* Startup code for elf32-sparc
|
|
Packit |
6c4009 |
Copyright (C) 1997-2018 Free Software Foundation, Inc.
|
|
Packit |
6c4009 |
This file is part of the GNU C Library.
|
|
Packit |
6c4009 |
Contributed by Richard Henderson <richard@gnu.ai.mit.edu>, 1997.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is free software; you can redistribute it and/or
|
|
Packit |
6c4009 |
modify it under the terms of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License as published by the Free Software Foundation; either
|
|
Packit |
6c4009 |
version 2.1 of the License, or (at your option) any later version.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
In addition to the permissions in the GNU Lesser General Public
|
|
Packit |
6c4009 |
License, the Free Software Foundation gives you unlimited
|
|
Packit |
6c4009 |
permission to link the compiled version of this file with other
|
|
Packit |
6c4009 |
programs, and to distribute those programs without any restriction
|
|
Packit |
6c4009 |
coming from the use of this file. (The GNU Lesser General Public
|
|
Packit |
6c4009 |
License restrictions do apply in other respects; for example, they
|
|
Packit |
6c4009 |
cover modification of the file, and distribution when not linked
|
|
Packit |
6c4009 |
into another program.)
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
Note that people who make modified versions of this file are not
|
|
Packit |
6c4009 |
obligated to grant this special exception for their modified
|
|
Packit |
6c4009 |
versions; it is their choice whether to do so. The GNU Lesser
|
|
Packit |
6c4009 |
General Public License gives permission to release a modified
|
|
Packit |
6c4009 |
version without this exception; this exception also makes it
|
|
Packit |
6c4009 |
possible to release a modified version which carries forward this
|
|
Packit |
6c4009 |
exception.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is distributed in the hope that it will be useful,
|
|
Packit |
6c4009 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
Packit |
6c4009 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Packit |
6c4009 |
Lesser General Public License for more details.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
You should have received a copy of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License along with the GNU C Library; if not, see
|
|
Packit |
6c4009 |
<http://www.gnu.org/licenses/>. */
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#include <sysdep.h>
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
.section ".text"
|
|
Packit |
6c4009 |
.align 4
|
|
Packit |
6c4009 |
.global _start
|
|
Packit |
6c4009 |
.type _start,#function
|
|
Packit |
6c4009 |
_start:
|
|
Packit |
6c4009 |
#ifdef PIC
|
|
Packit |
6c4009 |
SETUP_PIC_REG(l7)
|
|
Packit |
6c4009 |
#endif
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Terminate the stack frame, and reserve space for functions to
|
|
Packit |
6c4009 |
drop their arguments. */
|
|
Packit |
6c4009 |
mov %g0, %fp
|
|
Packit |
6c4009 |
sub %sp, 6*4, %sp
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Extract the arguments and environment as encoded on the stack. The
|
|
Packit |
6c4009 |
argument info starts after one register window (16 words) past the SP. */
|
|
Packit |
6c4009 |
ld [%sp+22*4], %o1
|
|
Packit |
6c4009 |
add %sp, 23*4, %o2
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Load the addresses of the user entry points. */
|
|
Packit |
6c4009 |
#ifndef PIC
|
|
Packit |
6c4009 |
sethi %hi(main), %o0
|
|
Packit |
6c4009 |
sethi %hi(__libc_csu_init), %o3
|
|
Packit |
6c4009 |
sethi %hi(__libc_csu_fini), %o4
|
|
Packit |
6c4009 |
or %o0, %lo(main), %o0
|
|
Packit |
6c4009 |
or %o3, %lo(__libc_csu_init), %o3
|
|
Packit |
6c4009 |
or %o4, %lo(__libc_csu_fini), %o4
|
|
Packit |
6c4009 |
#else
|
|
Packit |
6c4009 |
sethi %gdop_hix22(main), %o0
|
|
Packit |
6c4009 |
sethi %gdop_hix22(__libc_csu_init), %o3
|
|
Packit |
6c4009 |
sethi %gdop_hix22(__libc_csu_fini), %o4
|
|
Packit |
6c4009 |
xor %o0, %gdop_lox10(main), %o0
|
|
Packit |
6c4009 |
xor %o3, %gdop_lox10(__libc_csu_init), %o3
|
|
Packit |
6c4009 |
xor %o4, %gdop_lox10(__libc_csu_fini), %o4
|
|
Packit |
6c4009 |
ld [%l7 + %o0], %o0, %gdop(main)
|
|
Packit |
6c4009 |
ld [%l7 + %o3], %o3, %gdop(__libc_csu_init)
|
|
Packit |
6c4009 |
ld [%l7 + %o4], %o4, %gdop(__libc_csu_fini)
|
|
Packit |
6c4009 |
#endif
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* When starting a binary via the dynamic linker, %g1 contains the
|
|
Packit |
6c4009 |
address of the shared library termination function, which will be
|
|
Packit |
6c4009 |
registered with atexit(). If we are statically linked, this will
|
|
Packit |
6c4009 |
be NULL. */
|
|
Packit |
6c4009 |
mov %g1, %o5
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Let libc do the rest of the initialization, and call main. */
|
|
Packit |
6c4009 |
call __libc_start_main
|
|
Packit |
6c4009 |
nop
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Die very horribly if exit returns. */
|
|
Packit |
6c4009 |
unimp
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
.size _start, .-_start
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Define a symbol for the first piece of initialized data. */
|
|
Packit |
6c4009 |
.data
|
|
Packit |
6c4009 |
.globl __data_start
|
|
Packit |
6c4009 |
__data_start:
|
|
Packit |
6c4009 |
.long 0
|
|
Packit |
6c4009 |
weak_alias (__data_start, data_start)
|