linux-kernel - [PATCH 2/3] perf jvmti: use gettid from libc

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Message-Id: <4e24f9b00cbe53520cfe66781b29a3977ae23243.1626966805.git.rickyman7@gmail.com>
Date:   Thu, 22 Jul 2021 17:34:15 +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 2/3] perf jvmti: use gettid from libc_compat

This patch removes the re-definition of gettid in jvmti_agent.c, adding
the include of the libc_compat.h header, which now contains the gettid
function.

Signed-off-by: Riccardo Mancini <rickyman7@...il.com>
---
 tools/perf/jvmti/jvmti_agent.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/tools/perf/jvmti/jvmti_agent.c b/tools/perf/jvmti/jvmti_agent.c
index 526dcaf9f07903dd..299e7e87198cc18d 100644
--- a/tools/perf/jvmti/jvmti_agent.c
+++ b/tools/perf/jvmti/jvmti_agent.c
@@ -33,7 +33,7 @@
 #include <unistd.h>
 #include <time.h>
 #include <sys/mman.h>
-#include <syscall.h> /* for gettid() */
+#include <tools/libc_compat.h> /* for gettid() */
 #include <err.h>
 #include <linux/kernel.h>
 
@@ -45,13 +45,6 @@
 static char jit_path[PATH_MAX];
 static void *marker_addr;
 
-#ifndef HAVE_GETTID
-static inline pid_t gettid(void)
-{
-	return (pid_t)syscall(__NR_gettid);
-}
-#endif
-
 static int get_e_machine(struct jitheader *hdr)
 {
 	ssize_t sret;
-- 
2.31.1