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authorStefan Hajnoczi <stefanha@linux.vnet.ibm.com>2012-05-23 11:36:42 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-05-24 11:29:25 -0300
commit00b9da7219cd027a1c51c3ef576aadbbd9fe38fe (patch)
tree14a930c7e1f76c085bf9e1f894bfd17e190ba912 /tools
parente76df19bd986656e3c9f4a62e3dd15e7d69b607a (diff)
downloadlinux-00b9da7219cd027a1c51c3ef576aadbbd9fe38fe.tar.bz2
tools lib traceevent: Allow expressions in __print_symbolic() fields
The __print_symbolic() function takes a sequence of key-value pairs for pretty-printing a constant. The new kvm:kvm_exit print fmt uses the expression: __print_symbolic(..., { 0x040 + 1, "DB excp" }, ...) Currently only atoms are supported and this print fmt fails to parse. This patch adds support for expressions instead of just atoms so that 0x040 + 1 is parsed successfully. Cc: Avi Kivity <avi@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1337740619-27925-6-git-send-email-namhyung.kim@lge.com Signed-off-by: Namhyung Kim <namhyung.kim@lge.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/lib/traceevent/event-parse.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 998534992197..33450c901e17 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -2124,6 +2124,13 @@ process_fields(struct event_format *event, struct print_flag_sym **list, char **
free_token(token);
type = process_arg(event, arg, &token);
+
+ if (type == EVENT_OP)
+ type = process_op(event, arg, &token);
+
+ if (type == EVENT_ERROR)
+ goto out_free;
+
if (test_type_token(type, token, EVENT_DELIM, ","))
goto out_free;