linux-kernel - [PATCH v3 1/2] perf build: Properly guard libbpf includes

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Date:   Fri,  6 Jan 2023 07:13:19 -0800
From:   Ian Rogers <irogers@...gle.com>
To:     Mike Leach <mike.leach@...aro.org>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        bpf@...r.kernel.org, acme@...nel.org, irogers@...gle.com,
        peterz@...radead.org, mingo@...hat.com, mark.rutland@....com,
        alexander.shishkin@...ux.intel.com, jolsa@...nel.org,
        namhyung@...nel.org
Subject: [PATCH v3 1/2] perf build: Properly guard libbpf includes

Including libbpf header files should be guarded by
HAVE_LIBBPF_SUPPORT. In bpf_counter.h, move the skeleton utilities
under HAVE_BPF_SKEL.

Fixes: d6a735ef3277 ("perf bpf_counter: Move common functions to bpf_counter.h")
Reported-by: Mike Leach <mike.leach@...aro.org>
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/builtin-trace.c    | 2 ++
 tools/perf/util/bpf_counter.h | 6 ++++++
 2 files changed, 8 insertions(+)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 86e06f136f40..d21fe0f32a6d 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -16,7 +16,9 @@
 
 #include "util/record.h"
 #include <api/fs/tracing_path.h>
+#ifdef HAVE_LIBBPF_SUPPORT
 #include <bpf/bpf.h>
+#endif
 #include "util/bpf_map.h"
 #include "util/rlimit.h"
 #include "builtin.h"
diff --git a/tools/perf/util/bpf_counter.h b/tools/perf/util/bpf_counter.h
index 4dbf26408b69..c6d21c07b14c 100644
--- a/tools/perf/util/bpf_counter.h
+++ b/tools/perf/util/bpf_counter.h
@@ -4,9 +4,12 @@
 
 #include <linux/list.h>
 #include <sys/resource.h>
+
+#ifdef HAVE_LIBBPF_SUPPORT
 #include <bpf/bpf.h>
 #include <bpf/btf.h>
 #include <bpf/libbpf.h>
+#endif
 
 struct evsel;
 struct target;
@@ -87,6 +90,8 @@ static inline void set_max_rlimit(void)
 	setrlimit(RLIMIT_MEMLOCK, &rinf);
 }
 
+#ifdef HAVE_BPF_SKEL
+
 static inline __u32 bpf_link_get_id(int fd)
 {
 	struct bpf_link_info link_info = { .id = 0, };
@@ -127,5 +132,6 @@ static inline int bperf_trigger_reading(int prog_fd, int cpu)
 
 	return bpf_prog_test_run_opts(prog_fd, &opts);
 }
+#endif /* HAVE_BPF_SKEL */
 
 #endif /* __PERF_BPF_COUNTER_H */
-- 
2.39.0.314.g84b9a713c41-goog