arm: Add ENTRY/ENDPROC to private libgcc functions

When CONFIG_SYS_THUMB_BUILD is defined these functions may be called from
Thumb code. Add the required ENTRY and ENDPROC bracketing so that BLX is
used to call these ARM functions, instead of plain BL, which will fail.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Pavel Machek <pavel@denx.de>
This commit is contained in:
Simon Glass 2015-06-02 11:08:20 -06:00 committed by Albert ARIBAUD
parent 6f43ba70d1
commit 1251d51ca5
7 changed files with 30 additions and 17 deletions

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@ -4,6 +4,8 @@
* SPDX-License-Identifier: GPL-2.0+
*/
#include <linux/linkage.h>
#ifdef __ARMEB__
#define al r1
#define ah r0
@ -13,9 +15,8 @@
#endif
.globl __ashldi3
.globl __aeabi_llsl
__ashldi3:
__aeabi_llsl:
ENTRY(__aeabi_llsl)
subs r3, r2, #32
rsb ip, r2, #32
@ -24,3 +25,4 @@ __aeabi_llsl:
orrmi ah, ah, al, lsr ip
mov al, al, lsl r2
mov pc, lr
ENDPROC(__aeabi_llsl)

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@ -4,6 +4,8 @@
* SPDX-License-Identifier: GPL-2.0+
*/
#include <linux/linkage.h>
#ifdef __ARMEB__
#define al r1
#define ah r0
@ -13,9 +15,8 @@
#endif
.globl __ashrdi3
.globl __aeabi_lasr
__ashrdi3:
__aeabi_lasr:
ENTRY(__aeabi_lasr)
subs r3, r2, #32
rsb ip, r2, #32
@ -24,3 +25,4 @@ __aeabi_lasr:
orrmi al, al, ah, lsl ip
mov ah, ah, asr r2
mov pc, lr
ENDPROC(__aeabi_lasr)

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@ -1,3 +1,5 @@
#include <linux/linkage.h>
.macro ARM_DIV_BODY dividend, divisor, result, curbit
#if __LINUX_ARM_ARCH__ >= 5
@ -95,9 +97,8 @@
.align 5
.globl __divsi3
.globl __aeabi_idiv
__divsi3:
__aeabi_idiv:
ENTRY(__aeabi_idiv)
cmp r1, #0
eor ip, r0, r1 @ save the sign of the result.
beq Ldiv0
@ -139,3 +140,4 @@ Ldiv0:
bl __div0
mov r0, #0 @ About as wrong as it could be.
ldr pc, [sp], #4
ENDPROC(__aeabi_idiv)

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@ -4,6 +4,8 @@
* SPDX-License-Identifier: GPL-2.0+
*/
#include <linux/linkage.h>
#ifdef __ARMEB__
#define al r1
#define ah r0
@ -13,9 +15,8 @@
#endif
.globl __lshrdi3
.globl __aeabi_llsr
__lshrdi3:
__aeabi_llsr:
ENTRY(__aeabi_llsr)
subs r3, r2, #32
rsb ip, r2, #32
@ -24,3 +25,4 @@ __aeabi_llsr:
orrmi al, al, ah, lsl ip
mov ah, ah, lsr r2
mov pc, lr
ENDPROC(__aeabi_llsr)

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@ -1,3 +1,5 @@
#include <linux/linkage.h>
.macro ARM_MOD_BODY dividend, divisor, order, spare
#if __LINUX_ARM_ARCH__ >= 5
@ -69,8 +71,7 @@
.endm
.align 5
.globl __modsi3
__modsi3:
ENTRY(__modsi3)
cmp r1, #0
beq Ldiv0
rsbmi r1, r1, #0 @ loops below use unsigned.
@ -88,7 +89,7 @@ __modsi3:
10: cmp ip, #0
rsbmi r0, r0, #0
mov pc, lr
ENDPROC(__modsi3)
Ldiv0:

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@ -1,3 +1,5 @@
#include <linux/linkage.h>
/* # 1 "libgcc1.S" */
@ libgcc1 routines for ARM cpu.
@ Division routines, written by Richard Earnshaw, (rearnsha@armltd.co.uk)
@ -72,8 +74,7 @@ Ldiv0:
ldmia sp!, {pc}
.size __udivsi3 , . - __udivsi3
.globl __aeabi_uidivmod
__aeabi_uidivmod:
ENTRY(__aeabi_uidivmod)
stmfd sp!, {r0, r1, ip, lr}
bl __aeabi_uidiv
@ -81,9 +82,9 @@ __aeabi_uidivmod:
mul r3, r0, r2
sub r1, r1, r3
mov pc, lr
ENDPROC(__aeabi_uidivmod)
.globl __aeabi_idivmod
__aeabi_idivmod:
ENTRY(__aeabi_idivmod)
stmfd sp!, {r0, r1, ip, lr}
bl __aeabi_idiv
@ -91,3 +92,4 @@ __aeabi_idivmod:
mul r3, r0, r2
sub r1, r1, r3
mov pc, lr
ENDPROC(__aeabi_idivmod)

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@ -1,3 +1,5 @@
#include <linux/linkage.h>
/* # 1 "libgcc1.S" */
@ libgcc1 routines for ARM cpu.
@ Division routines, written by Richard Earnshaw, (rearnsha@armltd.co.uk)
@ -11,10 +13,9 @@ curbit .req r3
/* lr .req r14 */
/* pc .req r15 */
.text
.globl __umodsi3
.type __umodsi3 ,function
.align 0
__umodsi3 :
ENTRY(__umodsi3)
cmp divisor, #0
beq Ldiv0
mov curbit, #1
@ -86,3 +87,4 @@ Ldiv0:
/* # 456 "libgcc1.S" */
/* # 500 "libgcc1.S" */
/* # 580 "libgcc1.S" */
ENDPROC(__umodsi3)