perf symbols: Record the domain of DSOs in HEADER_BUILD_ID header table

So that we can restore them to the right DSO list (either
dsos__kernel or dsos__user).

We do that just like the kernel does for the other events,
encoding PERF_RECORD_MISC_{KERNEL,USER} in perf_event_header.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1262901583-8074-2-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 6 insertions, 3 deletions

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 942f7da8bf84..ec96321eb9e4 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -193,7 +193,7 @@ static int write_padded(int fd, const void *bf, size_t count,
                         continue;               \
                 else
 
-static int __dsos__write_buildid_table(struct list_head *head, int fd)
+static int __dsos__write_buildid_table(struct list_head *head, u16 misc, int fd)
 {
         struct dso *pos;
 
@@ -205,6 +205,7 @@ static int __dsos__write_buildid_table(struct list_head *head, int fd)
                 len = ALIGN(len, NAME_ALIGN);
                 memset(&b, 0, sizeof(b));
                 memcpy(&b.build_id, pos->build_id, sizeof(pos->build_id));
+                b.header.misc = misc;
                 b.header.size = sizeof(b) + len;
                 err = do_write(fd, &b, sizeof(b));
                 if (err < 0)
@@ -220,9 +221,11 @@ static int __dsos__write_buildid_table(struct list_head *head, int fd)
 
 static int dsos__write_buildid_table(int fd)
 {
-        int err = __dsos__write_buildid_table(&dsos__kernel, fd);
+        int err = __dsos__write_buildid_table(&dsos__kernel,
+                                              PERF_RECORD_MISC_KERNEL, fd);
         if (err == 0)
-                err = __dsos__write_buildid_table(&dsos__user, fd);
+                err = __dsos__write_buildid_table(&dsos__user,
+                                                  PERF_RECORD_MISC_USER, fd);
         return err;
 }