On 06/27/2017 10:50 AM, Paul Elder wrote:
> On 06/28/2017 01:36 AM, Shuah Khan wrote:
>> On 06/27/2017 10:11 AM, Greg KH wrote:
>>> On Tue, Jun 27, 2017 at 10:04:47AM -0600, Shuah Khan wrote:
>>>> Convert breakpoint_test_arm64 output to TAP13 format.
>>>>
>>>> Signed-off-by: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx>
>>>> ---
>>>> .../selftests/breakpoints/breakpoint_test_arm64.c | 114 ++++++++++++++-------
>>>> 1 file changed, 79 insertions(+), 35 deletions(-)
>>>>
>>>> diff --git a/tools/testing/selftests/breakpoints/breakpoint_test_arm64.c b/tools/testing/selftests/breakpoints/breakpoint_test_arm64.c
>>>> index fa6d57af5217..d13bd0dea13e 100644
>>>> --- a/tools/testing/selftests/breakpoints/breakpoint_test_arm64.c
>>>> +++ b/tools/testing/selftests/breakpoints/breakpoint_test_arm64.c
>>>> @@ -41,20 +41,27 @@ static volatile uint8_t var[96] __attribute__((__aligned__(32)));
>>>> static void child(int size, int wr)
>>>> {
>>>> volatile uint8_t *addr = &var[32 + wr];
>>>> + char msg_buf[512];
>>>>
>>>> if (ptrace(PTRACE_TRACEME, 0, NULL, NULL) != 0) {
>>>> - perror("ptrace(PTRACE_TRACEME) failed");
>>>> - _exit(1);
>>>> + snprintf(msg_buf, sizeof(msg_buf),
>>>> + "ptrace(PTRACE_TRACEME) failed: %s\n",
>>>> + strerror(errno));
>>>> + ksft_exit_fail_msg(msg_buf);
>>>
>>> No objection to this patch, but perhaps the "msg" functions could either
>>> be variable arg macros, or just a printk() like function that can take
>>> the string and anything you want to send to it.
>>
>> Right. Changing "msg" functions to take var args will make things easier.
>> I will take care of that and use this test for a use-case.
> I was going to work on this...
Yeah. Thanks for the reminder. I suggested making these var args and did as
you to do this already.
> Do you want to take care of it or can I do it?
Please take care of it. I will do the breakpoints_test_arm64 on top of
yours.
thanks,
-- Shuah
>
> Thank you,
>
> Paul
>
>>>
>>> So this could be:
>>> ksft_exit_fail_msg("ptrace(PTRACE_TRACEME) failed: %s\n", strerror(errno));
>>
>> Right.
>>
>>>
>>> Anyway, just a thought, might make conversions a lot easier, no need for
>>> intermediate buffers>
>>> thanks,
>>>
>>> greg k-h
>>>
>>
>> thanks,
>> -- Shuah
>>
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