From b11fe38883d1de76f2f847943e085a808f83f189 Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Sat, 12 Feb 2011 22:25:27 +0100 Subject: [PATCH] ARM: 6663/1: make Thumb2 kernel entry point more similar to the ARM one Some installers would binary patch the kernel zImage to replace the first few nops with custom instructions. This breaks the Thumb2 kernel as the mode switch is right at the beginning. Let's move it towards the end of the nop sequence instead. Signed-off-by: Nicolas Pitre Signed-off-by: Russell King --- arch/arm/boot/compressed/head.S | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S index 7193884ed8b0..920f4dbd4883 100644 --- a/arch/arm/boot/compressed/head.S +++ b/arch/arm/boot/compressed/head.S @@ -128,14 +128,14 @@ wait: mrc p14, 0, pc, c0, c1, 0 .arm @ Always enter in ARM state start: .type start,#function - THUMB( adr r12, BSYM(1f) ) - THUMB( bx r12 ) - THUMB( .rept 6 ) - ARM( .rept 8 ) + .rept 7 mov r0, r0 .endr + ARM( mov r0, r0 ) + ARM( b 1f ) + THUMB( adr r12, BSYM(1f) ) + THUMB( bx r12 ) - b 1f .word 0x016f2818 @ Magic numbers to help the loader .word start @ absolute load/run zImage address .word _edata @ zImage end address -- 2.20.1