Commit 1d6760a3 authored by Nicolas Pitre's avatar Nicolas Pitre Committed by Russell King
Browse files

[ARM] 3524/1: ARM EABI: more 64-bit aligned stack fixes 



Patch from Nicolas Pitre

Assembly code that calls C code must ensure the C code sees a 64-bit
aligned stack pointer.

Signed-off-by: default avatarNicolas Pitre <nico@cam.org>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 2ceec0c8

arch/arm/lib/backtrace.S

+2 −2
Original line number Diff line number Diff line
@@ -122,7 +122,7 @@ ENTRY(c_backtrace) 
#define reg   r5

#define stack r6



.Ldumpstm:	stmfd	sp!, {instr, reg, stack, r7, lr}

.Ldumpstm:	stmfd	sp!, {instr, reg, stack, r7, r8, lr}

		mov	stack, r0

		mov	instr, r1

		mov	reg, #9
@@ -145,7 +145,7 @@ ENTRY(c_backtrace) 
		adrne	r0, .Lcr

		blne	printk

		mov	r0, stack

		LOADREGS(fd, sp!, {instr, reg, stack, r7, pc})

		LOADREGS(fd, sp!, {instr, reg, stack, r7, r8, pc})



.Lfp:		.asciz	" r%d = %08X%c"

.Lcr:		.asciz	"\n"

arch/arm/lib/div64.S

+2 −2
Original line number Diff line number Diff line
@@ -189,12 +189,12 @@ ENTRY(__do_div64) 
	moveq	pc, lr



	@ Division by 0:

	str	lr, [sp, #-4]!

	str	lr, [sp, #-8]!

	bl	__div0



	@ as wrong as it could be...

	mov	yl, #0

	mov	yh, #0

	mov	xh, #0

	ldr	pc, [sp], #4

	ldr	pc, [sp], #8

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