[PATCH v1 09/11] perf mem: missing stdio.h and limits.h in mem-events.c

[Ian Rogers]

Sashiko reported:

  When compiling the perf tool against a strict POSIX C library such
  as musl libc, tools/perf/util/mem-events.c fails to build due to the
  use of undeclared standard symbols.

  The source file defines an array using PATH_MAX in
  perf_pmu__mem_events_supported(), and utilizes fprintf() with stderr
  in perf_pmu__mem_events_list():

  Because the required <limits.h> and <stdio.h> headers are not
  explicitly included, these symbols remain undeclared. While glibc
  masks this omission by implicitly pulling in these definitions via
  other standard headers, musl libc adheres strictly to POSIX
  inclusions. This causes the compiler to reject the undeclared
  PATH_MAX macro, the stderr stream, and the fprintf() function,
  halting the build process on systems utilizing strict libc
  implementations.

Add the header files and use git clang-format to sort.

Reported-by: sashiko-bot@xxxxxxxxxx
Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
---
 tools/perf/util/mem-events.c | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c
index 0b49fce251fc..64aecc2b67e5 100644
--- a/tools/perf/util/mem-events.c
+++ b/tools/perf/util/mem-events.c
@@ -1,22 +1,28 @@
 // SPDX-License-Identifier: GPL-2.0
+#include "mem-events.h"
+
+#include <errno.h>
+#include <limits.h>
 #include <stddef.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <errno.h>
-#include <sys/types.h>
+
+#include <linux/kernel.h>
 #include <sys/stat.h>
+#include <sys/types.h>
 #include <unistd.h>
+
 #include <api/fs/fs.h>
-#include <linux/kernel.h>
+
 #include "cpumap.h"
-#include "map_symbol.h"
-#include "mem-events.h"
-#include "mem-info.h"
 #include "debug.h"
 #include "evsel.h"
-#include "symbol.h"
+#include "map_symbol.h"
+#include "mem-info.h"
 #include "pmu.h"
 #include "pmus.h"
+#include "symbol.h"
 
 unsigned int perf_mem_events__loads_ldlat = 30;
 
-- 
2.55.0.1082.g2b9226bbc0-goog