[PATCH v1 06/11] perf test: missing stdio.h and signal.h inclusions in cmd_test()

[Ian Rogers <irogers@google.com>]

Sashiko reported:

  When compiling the perf tool against musl libc, the build fails in
  tools/perf/tests/builtin-test.c due to missing explicit inclusions
  of <stdio.h> and <signal.h>.

  The file relies on standard I/O functions like fdopen() and
  fprintf(), as well as signal handling constructs like signal(),
  SIGINT, and SIGTERM within __cmd_test() and related helpers. While
  glibc may implicitly pull in these definitions through other
  standard headers such as <stdlib.h> or <unistd.h>, musl libc
  strictly enforces POSIX namespace separation and avoids implicit
  header inclusion. Because the required headers are absent, the
  compiler cannot resolve these standard library types and macros,
  resulting in a direct compilation failure on musl-based systems.

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

Reported-by: sashiko-bot@kernel.org
Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/tests/builtin-test.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 4d0784b16723..ca3e7b84d5d7 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -5,16 +5,15 @@
  * Builtin regression testing command: ever growing number of sanity tests
  */
 #include <ctype.h>
-#include <fcntl.h>
 #include <errno.h>
-#ifdef HAVE_BACKTRACE_SUPPORT
-#include <execinfo.h>
-#endif
 #include <setjmp.h>
+#include <signal.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
 #include <dirent.h>
+#include <fcntl.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/zalloc.h>
@@ -44,6 +43,10 @@
 #include "util/strbuf.h"
 #include "util/term.h"
 
+#ifdef HAVE_BACKTRACE_SUPPORT
+#include <execinfo.h>
+#endif
+
 static const char *junit_filename;
 static struct strbuf junit_xml_buf = STRBUF_INIT;
 
-- 
2.55.0.1082.g2b9226bbc0-goog