851e68a240
Our <machine/asm.h> files were modified from upstream, to the extent that no architecture was actually using the upstream ENTRY or END macros, assuming that architecture even had such a macro upstream. This patch moves everyone to the same macros, with just a few tweaks remaining in the <machine/asm.h> files, which no one should now use directly. I've removed most of the unused cruft from the <machine/asm.h> files, though there's still rather a lot in the mips/mips64 ones. Bug: 12229603 Change-Id: I2fff287dc571ac1087abe9070362fb9420d85d6d
129 lines
3.4 KiB
ArmAsm
129 lines
3.4 KiB
ArmAsm
/*
|
|
* 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.
|
|
*/
|
|
|
|
#include <private/bionic_asm.h>
|
|
|
|
#if (_MIPS_SIM == _ABIO32) || (_MIPS_SIM == _ABI32)
|
|
#define ELF_DYNSZ 8
|
|
#define ELF_DYN_TAG 0
|
|
#define ELF_DYN_VAL 4
|
|
#define GOTENT_SZ 4
|
|
#else
|
|
#define ELF_DYNSZ 16
|
|
#define ELF_DYN_TAG 0
|
|
#define ELF_DYN_VAL 8
|
|
#define GOTENT_SZ 8
|
|
#endif
|
|
|
|
.text
|
|
.align 4
|
|
.type __start,@function
|
|
|
|
.ent __start
|
|
.globl __start
|
|
__start:
|
|
.set noreorder
|
|
bal 1f
|
|
nop
|
|
1:
|
|
#if (_MIPS_SIM == _ABIO32) || (_MIPS_SIM == _ABI32)
|
|
.cpload ra
|
|
#else
|
|
.cpsetup ra, $0, 1b
|
|
#endif
|
|
.set reorder
|
|
|
|
/* Discover the load address */
|
|
LA t0, 1b
|
|
PTR_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
|
|
PTR_ADDU t1, t0
|
|
LI t3, DT_PLTGOT
|
|
LI ta0, DT_MIPS_LOCAL_GOTNO
|
|
0:
|
|
REG_L t2, ELF_DYN_TAG(t1)
|
|
beqz t2, .Lrelocate_local_got
|
|
|
|
bne t2, t3, 1f /* DT_PLTGOT? */
|
|
REG_L s0, ELF_DYN_VAL(t1)
|
|
PTR_ADDU s0, t0
|
|
b 2f
|
|
|
|
1:
|
|
bne t2, ta0, 2f /* DT_MIPS_LOCAL_GOTNO? */
|
|
REG_L s1, ELF_DYN_VAL(t1)
|
|
|
|
2: PTR_ADDU t1, ELF_DYNSZ
|
|
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
|
|
*/
|
|
|
|
PTR_ADDU s0, GOTENT_SZ
|
|
SUBU s1, 1
|
|
PTR_L t1, (s0)
|
|
bgez t1, 9f
|
|
PTR_ADDU s0, GOTENT_SZ
|
|
SUBU s1, 1
|
|
b 9f
|
|
|
|
1: PTR_L t1, (s0)
|
|
PTR_ADDU t1, t0
|
|
PTR_S t1, (s0)
|
|
PTR_ADDU s0, GOTENT_SZ
|
|
9: SUBU s1, 1
|
|
bgez s1, 1b
|
|
|
|
/* call linker_init */
|
|
move a0, sp
|
|
#if (_MIPS_SIM == _ABIO32) || (_MIPS_SIM == _ABI32)
|
|
PTR_SUBU sp, 4*REGSZ /* space for arg saves in linker_init */
|
|
#endif
|
|
jal __linker_init
|
|
#if (_MIPS_SIM == _ABIO32) || (_MIPS_SIM == _ABI32)
|
|
PTR_ADDU sp, 4*REGSZ /* restore sp */
|
|
#endif
|
|
move t9, v0
|
|
j t9
|
|
.end __start
|
|
|
|
/* FIXME:Is this still needed? */
|
|
.section .ctors, "wa"
|
|
.globl __CTOR_LIST__
|
|
__CTOR_LIST__:
|
|
.long -1
|