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/*
* Copyright (c) 2011 Aeroflex Gaisler
*
* BSD license:
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
.text
.global _start, main, _end
_start:
#ifndef _FLAT
save %sp, -64, %sp
#else
add %sp, -72, %sp
st %o7, [%sp+64]
#endif
/* clear the bss */
sethi %hi(__bss_start),%g2
or %g2,%lo(__bss_start),%g2 ! g2 = start of bss
sethi %hi(_end),%g3
or %g3,%lo(_end),%g3 ! g3 = end of bss
mov %g0,%g1 ! so std has two zeros
sub %g3, %g2, %g3
zerobss:
subcc %g3, 8, %g3
bge,a zerobss
std %g0,[%g2+%g3]
set _end, %o0
st %g0,[%o0]
call bdinit2
nop
call prelibchook
nop
call _call_initcalls /* atexit uses __atexit lock */
nop
set _fini, %o0
call atexit, 1
nop
call _init
nop
call main
nop
call _exit
nop
#ifndef _FLAT
ret
restore
#else
ld [%sp+64], %o7
retl
add %sp, 72, %sp
#endif
.seg "data"
.global .bdata
.bdata:
.align 8
.global _environ
_environ:
.word 1
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