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/* $OpenBSD: ldasm.S,v 1.3 2002/10/23 12:38:29 pefo Exp $ */
/*
* Copyright (c) 1998-2002 Opsycon AB, Sweden.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Opsycon AB, Sweden.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
*/
#include <machine/asm.h>
/* Stack at this stage is:
* struct stack {
* int kargc;
* char *kargv[1]; size depends on kargc
* char kargstr[1]; size varies
* char kenvstr[1]; size varies
* };
*/
LEAF(_dl_start) /* Not really LEAF, but we simplify */
addu sp, -64 # Some space.
.cprestore 12
la a1, 1f
bgezal zero, 1f
1:
subu s0, ra, a1 # This is the load offset
addu a0, sp, 64 # Where stack info is.
addu a1, sp, 16 # Where fast AUX info will be.
la t9, _dl_boot_bind
addu t9, s0
jalr t9 # Relocate ourself.
lw a3, 64(sp) # argc
addu a0, sp, 68 # argv
addi a1, a0, 4
sll a3, a3, 2
addu a1, a3
addu a3, sp, 16 # Where fast AUX info will be.
move a2, s0 # Load offset
jal _dl_boot # Go do the linking.
addu sp, 64 # Restore stack pointer.
move t9, v0 # Entry address from _dl_boot.
j t9 # Go execute the 'real' program.
END(_dl_start)
LEAF(_dl__syscall)
li v0, 0 # Indirect syscall.
bne a3, zero, 1f
j ra
1:
li v0, -1
j ra
END(_dl__syscall)
.globl _dl_rt_resolve
.ent _dl_rt_resolve, 0
_dl_rt_resolve:
/* XXX Fix when lazy binding works */
.end _dl_rt_resolve
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