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-rw-r--r--tools/perf/util/header.c19
1 files changed, 18 insertions, 1 deletions
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 2f3eded54b0c..d89c9c7ef4e5 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2250,11 +2250,28 @@ int perf_header__fprintf_info(struct perf_session *session, FILE *fp, bool full)
struct header_print_data hd;
struct perf_header *header = &session->header;
int fd = perf_data_file__fd(session->file);
+ struct stat st;
+ int ret, bit;
+
hd.fp = fp;
hd.full = full;
+ ret = fstat(fd, &st);
+ if (ret == -1)
+ return -1;
+
+ fprintf(fp, "# captured on: %s", ctime(&st.st_ctime));
+
perf_header__process_sections(header, fd, &hd,
perf_file_section__fprintf_info);
+
+ fprintf(fp, "# missing features: ");
+ for_each_clear_bit(bit, header->adds_features, HEADER_LAST_FEATURE) {
+ if (bit)
+ fprintf(fp, "%s ", feat_ops[bit].name);
+ }
+
+ fprintf(fp, "\n");
return 0;
}
@@ -2273,7 +2290,7 @@ static int do_write_feat(int fd, struct perf_header *h, int type,
err = feat_ops[type].write(fd, h, evlist);
if (err < 0) {
- pr_debug("failed to write feature %d\n", type);
+ pr_debug("failed to write feature %s\n", feat_ops[type].name);
/* undo anything written */
lseek(fd, (*p)->offset, SEEK_SET);