linux-kernel - [PATCH RESEND stable 5.4] perf tools: Fixup get_current_dir

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Message-Id: <20221005204028.4066674-1-f.fainelli@gmail.com>
Date:   Wed,  5 Oct 2022 13:40:28 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     stable@...r.kernel.org
Cc:     Alexey Dobriyan <adobriyan@...il.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        linux-kernel@...r.kernel.org (open list:PERFORMANCE EVENTS SUBSYSTEM),
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH RESEND stable 5.4] perf tools: Fixup get_current_dir_name() compilation

From: Alexey Dobriyan <adobriyan@...il.com>

commit 128dbd78bd673f9edbc4413072b23efb6657feb0 upstream

strdup() prototype doesn't live in stdlib.h .

Add limits.h for PATH_MAX definition as well.

This fixes the build on Android.

Signed-off-by: Alexey Dobriyan (SK hynix) <adobriyan@...il.com>
Acked-by: Namhyung Kim <namhyung@...nel.org>
Link: http://lore.kernel.org/lkml/YRukaQbrgDWhiwGr@localhost.localdomain
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---

This patch is necessary to build perf with a musl-libc toolchain, not
just Android's bionic.

Resending because missed stable the first time

 tools/perf/util/get_current_dir_name.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/get_current_dir_name.c b/tools/perf/util/get_current_dir_name.c
index b205d929245f..e68935e9ac8c 100644
--- a/tools/perf/util/get_current_dir_name.c
+++ b/tools/perf/util/get_current_dir_name.c
@@ -3,8 +3,9 @@
 //
 #ifndef HAVE_GET_CURRENT_DIR_NAME
 #include "get_current_dir_name.h"
+#include <limits.h>
+#include <string.h>
 #include <unistd.h>
-#include <stdlib.h>
 
 /* Android's 'bionic' library, for one, doesn't have this */
 
-- 
2.25.1