libc

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/* $Id$ */

/* This file is part of DeforaOS System libc */

* 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 COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT

* HOLDER OR CONTRIBUTORS 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. */

_start:

/* terminate stack */

mov %g0, %fp

sub %sp, 0x18, %sp

/* argc, argv, arge, environ */

ld [%sp+0x58], %o0 /* argc, really is [%sp+0x40] */

add %sp, 0x5c, %o1 /* argv, really is [%sp+0x44] */

add %o1, %o0, %o2 /* arge = 4 * (argv + argc + 1) */

add %o2, %o0, %o2

add %o2, 0x4, %o2

sethi %hi(environ), %o3 /* %o3 = &environ */

or %o3, %lo(environ), %o3

st %o2, [%o3] /* *environ = %o2 */

/* main */

call main

nop

/* exit */

call exit

mov %i0, %o0

/* crash */

ret

nop

/* other essential functions */

/* udiv */

.global .udiv

.udiv:

ret

udivcc %o0, %o1, %o0

/* umul */

.global .umul

.umul:

ret

umulcc %o0, %o1, %o0