2 files changed, 15 insertions, 4 deletions

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index c130df2676f1..614fa9a4c67c 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -117,8 +117,12 @@ static void write_event(event_t *buf, size_t size)
         * Add it to the list of DSOs, so that when we finish this
          * record session we can pick the available build-ids.
          */
-        if (buf->header.type == PERF_RECORD_MMAP)
-                dsos__findnew(buf->mmap.filename);
+        if (buf->header.type == PERF_RECORD_MMAP) {
+                struct list_head *head = &dsos__user;
+                if (buf->mmap.header.misc == 1)
+                        head = &dsos__kernel;
+                __dsos__findnew(head, buf->mmap.filename);
+        }
 
         write_output(buf, size);
 }
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 0e9820ac4f5e..1abaefc126a8 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -110,7 +110,10 @@ static int event__synthesize_mmap_events(pid_t pid, pid_t tgid,
         while (1) {
                 char bf[BUFSIZ], *pbf = bf;
                 event_t ev = {
-                        .header = { .type = PERF_RECORD_MMAP },
+                        .header = {
+                                .type = PERF_RECORD_MMAP,
+                                .misc = 0, /* Just like the kernel, see kernel/perf_event.c __perf_event_mmap */
+                         },
                 };
                 int n;
                 size_t size;
@@ -170,6 +173,7 @@ int event__synthesize_modules(event__handler_t process,
 
                 size = ALIGN(pos->dso->long_name_len + 1, sizeof(u64));
                 memset(&ev, 0, sizeof(ev));
+                ev.mmap.header.misc = 1; /* kernel uses 0 for user space maps, see kernel/perf_event.c __perf_event_mmap */
                 ev.mmap.header.type = PERF_RECORD_MMAP;
                 ev.mmap.header.size = (sizeof(ev.mmap) -
                                         (sizeof(ev.mmap.filename) - size));
@@ -236,7 +240,10 @@ int event__synthesize_kernel_mmap(event__handler_t process,
 {
         size_t size;
         event_t ev = {
-                .header = { .type = PERF_RECORD_MMAP },
+                .header = {
+                        .type = PERF_RECORD_MMAP,
+                        .misc = 1, /* kernel uses 0 for user space maps, see kernel/perf_event.c __perf_event_mmap */
+                },
         };
         /*
          * We should get this from /sys/kernel/sections/.text, but till that is