提交 a65dc10f 编写于 作者: J Joseph Lo 提交者: Olof Johansson

ARM: tegra: fix relocation truncated error when THUMB2_KERNEL enabled

The conditional branch instruction in Thumb2 only available to short range.
The linker will fail when the conditional branch over the range. Then
resulting in link error when generating kernel image. e.g.:

arch/arm/mach-tegra/reset-handler.S:47:(.text+0xf8e):
relocation truncated to fit: R_ARM_THM_JUMP19 against symbol
`cpu_resume' defined in .data section in arch/arm/kernel/built-in.o

This patch using a Thumb2 instruction IT (if-then) to have a longer branch
range.
Reported-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NJoseph Lo <josephl@nvidia.com>
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Reviewed-by: NDave Martin <dave.martin@linaro.org>
Signed-off-by: NOlof Johansson <olof@lixom.net>
上级 5777b4b5
......@@ -44,6 +44,7 @@ ENTRY(tegra_resume)
cpu_id r0
cmp r0, #0 @ CPU0?
THUMB( it ne )
bne cpu_resume @ no
#ifdef CONFIG_ARCH_TEGRA_3x_SOC
......
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