linux-kernel - rseq selftests param_test.c gettid build failure

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Date:   Thu, 12 Sep 2019 11:54:37 +0000
From:   "Rantala, Tommi T. (Nokia - FI/Espoo)" <tommi.t.rantala@...ia.com>
To:     "mathieu.desnoyers@...icios.com" <mathieu.desnoyers@...icios.com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: rseq selftests param_test.c gettid build failure

Hi Mathieu,

I'm getting rseq selftest build failure with glibc 2.30, which added
gettid():

param_test.c:18:21: error: static declaration of 'gettid' follows non-
static declaration
   18 | static inline pid_t gettid(void)
      |                     ^~~~~~
In file included from /usr/include/unistd.h:1170,
                 from param_test.c:11:
/usr/include/bits/unistd_ext.h:34:16: note: previous declaration of
'gettid' was here
   34 | extern __pid_t gettid (void) __THROW;
      |                ^~~~~~

BR,
Tommi