mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-26 08:30:53 +07:00
4260415f6a
/tmp/ccJ3ssZW.s: Assembler messages:
/tmp/ccJ3ssZW.s:1952: Error: can't resolve `.text' {.text section} - `.LFB1077'
This is caused because:
.section .data
.section .text
.section .text
.previous
does not return us to the .text section, but the .data section; this
makes use of .previous dangerous if the ordering of previous sections
is not known.
Fix up the other users of .previous; .pushsection and .popsection are
a safer pairing to use than .section and .previous.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
73 lines
1.6 KiB
ArmAsm
73 lines
1.6 KiB
ArmAsm
/*
|
|
* linux/arch/arm/lib/getuser.S
|
|
*
|
|
* Copyright (C) 2001 Russell King
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* Idea from x86 version, (C) Copyright 1998 Linus Torvalds
|
|
*
|
|
* These functions have a non-standard call interface to make them more
|
|
* efficient, especially as they return an error value in addition to
|
|
* the "real" return value.
|
|
*
|
|
* __get_user_X
|
|
*
|
|
* Inputs: r0 contains the address
|
|
* Outputs: r0 is the error code
|
|
* r2, r3 contains the zero-extended value
|
|
* lr corrupted
|
|
*
|
|
* No other registers must be altered. (see <asm/uaccess.h>
|
|
* for specific ASM register usage).
|
|
*
|
|
* Note that ADDR_LIMIT is either 0 or 0xc0000000.
|
|
* Note also that it is intended that __get_user_bad is not global.
|
|
*/
|
|
#include <linux/linkage.h>
|
|
#include <asm/errno.h>
|
|
|
|
ENTRY(__get_user_1)
|
|
1: ldrbt r2, [r0]
|
|
mov r0, #0
|
|
mov pc, lr
|
|
ENDPROC(__get_user_1)
|
|
|
|
ENTRY(__get_user_2)
|
|
#ifdef CONFIG_THUMB2_KERNEL
|
|
2: ldrbt r2, [r0]
|
|
3: ldrbt r3, [r0, #1]
|
|
#else
|
|
2: ldrbt r2, [r0], #1
|
|
3: ldrbt r3, [r0]
|
|
#endif
|
|
#ifndef __ARMEB__
|
|
orr r2, r2, r3, lsl #8
|
|
#else
|
|
orr r2, r3, r2, lsl #8
|
|
#endif
|
|
mov r0, #0
|
|
mov pc, lr
|
|
ENDPROC(__get_user_2)
|
|
|
|
ENTRY(__get_user_4)
|
|
4: ldrt r2, [r0]
|
|
mov r0, #0
|
|
mov pc, lr
|
|
ENDPROC(__get_user_4)
|
|
|
|
__get_user_bad:
|
|
mov r2, #0
|
|
mov r0, #-EFAULT
|
|
mov pc, lr
|
|
ENDPROC(__get_user_bad)
|
|
|
|
.pushsection __ex_table, "a"
|
|
.long 1b, __get_user_bad
|
|
.long 2b, __get_user_bad
|
|
.long 3b, __get_user_bad
|
|
.long 4b, __get_user_bad
|
|
.popsection
|