blob: b782947d96a20b3174993c7cce0079b6166ca14a [file] [log] [blame]
/*
* Copyright (C) 2012 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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 OWNER 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.
*/
.text
.align 4
.type __start,@function
.ent __start
.globl __start
__start:
.set noreorder
bal 1f
nop
1: .cpload $31
.set reorder
/* Discover the load address */
la $t0, 1f
bal 1f
1: subu $t0, $ra, $t0
#define DT_PLTGOT 3
#define DT_MIPS_LOCAL_GOTNO 0x7000000a
/* Search dynamic table for DT_MIPS_LOCAL_GOTNO and DT_PLTGOT values */
la $t1, _DYNAMIC
addu $t1, $t0
li $t3, DT_PLTGOT
li $t4, DT_MIPS_LOCAL_GOTNO
0:
lw $t2, 0($t1)
beqz $t2, .Lrelocate_local_got
bne $t2, $t3, 1f /* DT_PLTGOT? */
lw $s0, 4($t1)
addu $s0, $t0
b 2f
1: bne $t2, $t4, 1f /* DT_MIPS_LOCAL_GOTNO? */
lw $s1, 4($t1)
b 2f
1:
2: addu $t1, 8
b 0b
.Lrelocate_local_got:
/*
* Relocate the local GOT entries
* got[0] is address of lazy resolver function
* got[1] may be used for a GNU extension
*/
addu $s0, 4
subu $s1, 1
lw $t1, ($s0)
bgez $t1, 9f
addu $s0, 4
subu $s1, 1
b 9f
1: lw $t1, ($s0)
addu $t1, $t0
sw $t1, ($s0)
addu $s0, 4
9: subu $s1, 1
bgez $s1, 1b
/* call linker_init */
move $a0, $sp
addiu $sp, -4*4 /* space for arg saves in linker_init */
la $t9, __linker_init
jalr $t9
move $t9, $v0
addu $sp, 4*4 /* restore sp */
j $t9
.end __start
.section .ctors, "wa"
.globl __CTOR_LIST__
__CTOR_LIST__:
.long -1