From 06f84d1989b7e58d56fa2e448664585749d41221 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= <bjorn.topel@intel.com>
Date: Tue, 1 Oct 2019 13:33:06 +0200
Subject: [PATCH] perf tools: Make usage of test_attr__* optional for
perf-sys.h
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For users of perf-sys.h outside perf, e.g. samples/bpf/bpf_load.c, it's
convenient not to depend on test_attr__*.
After commit 91854f9a077e ("perf tools: Move everything related to
sys_perf_event_open() to perf-sys.h"), all users of perf-sys.h will
depend on test_attr__enabled and test_attr__open.
This commit enables a user to define HAVE_ATTR_TEST to zero in order
to omit the test dependency.
Fixes: 91854f9a077e ("perf tools: Move everything related to sys_perf_event_open() to perf-sys.h")
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Acked-by: Song Liu <songliubraving@fb.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: bpf@vger.kernel.org
Cc: netdev@vger.kernel.org
Link: http://lore.kernel.org/lkml/20191001113307.27796-2-bjorn.topel@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/perf-sys.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/tools/perf/perf-sys.h b/tools/perf/perf-sys.h
index 63e4349a772ad..15e458e150bd8 100644
--- a/tools/perf/perf-sys.h
+++ b/tools/perf/perf-sys.h
@@ -15,7 +15,9 @@ void test_attr__init(void);
void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
int fd, int group_fd, unsigned long flags);
-#define HAVE_ATTR_TEST
+#ifndef HAVE_ATTR_TEST
+#define HAVE_ATTR_TEST 1
+#endif
static inline int
sys_perf_event_open(struct perf_event_attr *attr,
@@ -27,7 +29,7 @@ sys_perf_event_open(struct perf_event_attr *attr,
fd = syscall(__NR_perf_event_open, attr, pid, cpu,
group_fd, flags);
-#ifdef HAVE_ATTR_TEST
+#if HAVE_ATTR_TEST
if (unlikely(test_attr__enabled))
test_attr__open(attr, pid, cpu, fd, group_fd, flags);
#endif