[PATCH 5/5] selftests/powerpc: Add test for pkey siginfo verification

[Christophe Leroy]

Michael Ellerman <mpe at ellerman.id.au> a écrit :

> Sandipan Das <sandipan at linux.ibm.com> writes:
>> diff --git a/tools/testing/selftests/powerpc/mm/pkey_siginfo.c  
>> b/tools/testing/selftests/powerpc/mm/pkey_siginfo.c
>> new file mode 100644
>> index 0000000000000..58605c53d495d
>> --- /dev/null
>> +++ b/tools/testing/selftests/powerpc/mm/pkey_siginfo.c
>> @@ -0,0 +1,332 @@
> ...
>> +
>> +static void *protect(void *p)
>> +{
>> +	unsigned long rights;
>> +	unsigned int *base;
>> +	size_t size;
>> +	int tid, i;
>> +
>> +	tid = gettid();
>
> pkey_siginfo.c: In function 'protect':
> pkey_siginfo.c:103:8: error: implicit declaration of function  
> 'gettid' [-Werror=implicit-function-declaration]
>   tid = gettid();
>         ^
>
>
> On Ubuntu 18.04 at least.

See https://man7.org/linux/man-pages/man2/gettid.2.html

Added in glibc 2.30

Christophe