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.
>
> 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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