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authorArnaldo Carvalho de Melo <acme@redhat.com>2020-10-20 20:12:37 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2020-11-04 15:42:40 +0300
commitc18cf78d7969db89934587fa476220eefe7bd4bd (patch)
tree7758e69afc47c8d4371e49b6007e9d57f3470877 /tools/perf/util/parse-events.c
parentcc3b964d5eb49d0c9da08760f8760bb6945f1df5 (diff)
downloadlinux-c18cf78d7969db89934587fa476220eefe7bd4bd.tar.xz
perf bpf: Enclose libbpf.h include within HAVE_LIBBPF_SUPPORT
As it uses the 'deprecated' attribute in a way that breaks the build with old gcc compilers, so to continue being able to build in such systems where NO_LIBBPF=1 is being used, enclose it under HAVE_LIBBPF_SUPPORT. 1 centos:6 : FAIL gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23) 2 oraclelinux:6 : FAIL gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23.0.1) CC /tmp/build/perf/builtin-record.o In file included from util/bpf-loader.h:11, from builtin-record.c:39: /git/linux/tools/lib/bpf/libbpf.h:203: error: wrong number of arguments specified for 'deprecated' attribute Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/parse-events.c')
-rw-r--r--tools/perf/util/parse-events.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 3b273580fb84..3b581d7b3213 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -668,6 +668,7 @@ static int add_tracepoint_multi_sys(struct list_head *list, int *idx,
return ret;
}
+#ifdef HAVE_LIBBPF_SUPPORT
struct __add_bpf_event_param {
struct parse_events_state *parse_state;
struct list_head *list;
@@ -900,6 +901,30 @@ int parse_events_load_bpf(struct parse_events_state *parse_state,
list_splice_tail(&obj_head_config, head_config);
return err;
}
+#else // HAVE_LIBBPF_SUPPORT
+int parse_events_load_bpf_obj(struct parse_events_state *parse_state,
+ struct list_head *list __maybe_unused,
+ struct bpf_object *obj __maybe_unused,
+ struct list_head *head_config __maybe_unused)
+{
+ parse_events__handle_error(parse_state->error, 0,
+ strdup("BPF support is not compiled"),
+ strdup("Make sure libbpf-devel is available at build time."));
+ return -ENOTSUP;
+}
+
+int parse_events_load_bpf(struct parse_events_state *parse_state,
+ struct list_head *list __maybe_unused,
+ char *bpf_file_name __maybe_unused,
+ bool source __maybe_unused,
+ struct list_head *head_config __maybe_unused)
+{
+ parse_events__handle_error(parse_state->error, 0,
+ strdup("BPF support is not compiled"),
+ strdup("Make sure libbpf-devel is available at build time."));
+ return -ENOTSUP;
+}
+#endif // HAVE_LIBBPF_SUPPORT
static int
parse_breakpoint_type(const char *type, struct perf_event_attr *attr)