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Date:   Thu, 22 Jul 2021 17:34:14 +0200
From:   Riccardo Mancini <rickyman7@...il.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Namhyung Kim <namhyung@...nel.org>,
        Ian Rogers <irogers@...gle.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Riccardo Mancini <rickyman7@...il.com>,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org
Subject: [PATCH 1/3] tools libc_compat: add gettid

This patch adds gettid to libc_compat.h, since it was added in glibc
2.30 and is not available in previous versions.
The function is defined only if the HAVE_GETTID is not defined.

Signed-off-by: Riccardo Mancini <rickyman7@...il.com>
---
 tools/include/tools/libc_compat.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tools/include/tools/libc_compat.h b/tools/include/tools/libc_compat.h
index e907ba6f15e532b6..58762c9c49c22ef1 100644
--- a/tools/include/tools/libc_compat.h
+++ b/tools/include/tools/libc_compat.h
@@ -17,4 +17,11 @@ static inline void *reallocarray(void *ptr, size_t nmemb, size_t size)
 	return realloc(ptr, bytes);
 }
 #endif
+
+#ifndef HAVE_GETTID
+static inline pid_t gettid(void)
+{
+	return (pid_t)syscall(__NR_gettid);
+}
+#endif
 #endif
-- 
2.31.1

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