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authorBjörn Töpel <[email protected]>2019-10-01 13:33:06 +0200
committerDaniel Borkmann <[email protected]>2019-10-31 21:38:41 +0100
commit6bd7cf66578fae18c26d92115058482cc74ca71b (patch)
treefe7177a667e95cb07058b82e9befb39bf44b3be4
parent7541c87c9b7a7e07c84481f37f2c19063b44469b (diff)
perf tools: Make usage of test_attr__* optional for perf-sys.h
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 <[email protected]> Acked-by: Song Liu <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: [email protected] Cc: [email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: http://lore.kernel.org/bpf/[email protected]
-rw-r--r--tools/perf/perf-sys.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/perf/perf-sys.h b/tools/perf/perf-sys.h
index 63e4349a772a..15e458e150bd 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