[PATCH 3/4] ARM: kprobes-test: use <asm/opcodes.h>

Jon Medhurst (Tixy) tixy at linaro.org
Mon Jul 29 04:07:17 EDT 2013


On Thu, 2013-07-25 at 22:08 +0100, Ben Dooks wrote:
> Ensure we read instructions in the correct endian-ness by using
> the <asm/opcodes.h> helper to transform them as necessary.
> 
> Signed-off-by: Ben Dooks <ben.dooks at codethink.co.uk>
> ---
>  arch/arm/kernel/kprobes-test.c |    9 ++++-----
>  1 file changed, 4 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/arm/kernel/kprobes-test.c b/arch/arm/kernel/kprobes-test.c
> index 0cd63d0..6cfa04d 100644
> --- a/arch/arm/kernel/kprobes-test.c
> +++ b/arch/arm/kernel/kprobes-test.c
> @@ -1374,13 +1374,13 @@ static uintptr_t __used kprobes_test_case_start(const char *title, void *stack)
>  
>  	if (test_case_is_thumb) {
>  		u16 *p = (u16 *)(test_code & ~1);
> -		current_instruction = p[0];
> +		current_instruction = __mem_to_opcode_thumb16(p[0]);
>  		if (is_wide_instruction(current_instruction)) {
> -			current_instruction <<= 16;
> -			current_instruction |= p[1];
> +			u16 instr2 = __mem_to_opcode_thumb16(p[1]);
> +			current_instruction = ___asm_opcode_thumb32_compose(current_instruction, instr2);

Should it not be __opcode_thumb32_compose instead of
___asm_opcode_thumb32_compose ?

>  		}
>  	} else {
> -		current_instruction = *(u32 *)test_code;
> +		current_instruction = __mem_to_opcode_arm(*(u32 *)test_code);
>  	}
>  
>  	if (current_title[0] == '.')
> @@ -1593,7 +1593,6 @@ static int run_test_cases(void (*tests)(void), const union decode_item *table)
>  	return 0;
>  }
>  
> -

A random blank line removal, though by guess it shouldn't have been
there in the first place.

>  static int __init run_all_tests(void)
>  {
>  	int ret = 0;

-- 
Tixy





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