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authorSteven Rostedt <rostedt@goodmis.org>2015-11-16 17:25:16 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-02-25 11:58:52 -0800
commitce57c15c188facb665568777e6509af07d6019b9 (patch)
treec7c2fff8a175ec7189fd0edeceae13780836234f
parent8a558d9a0567b62f89aa6419fbf61d220cf140dd (diff)
downloadlwn-ce57c15c188facb665568777e6509af07d6019b9.tar.gz
lwn-ce57c15c188facb665568777e6509af07d6019b9.zip
tools lib traceevent: Fix output of %llu for 64 bit values read on 32 bit machines
commit 32abc2ede536aae52978d6c0a8944eb1df14f460 upstream. When a long value is read on 32 bit machines for 64 bit output, the parsing needs to change "%lu" into "%llu", as the value is read natively. Unfortunately, if "%llu" is already there, the code will add another "l" to it and fail to parse it properly. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20151116172516.4b79b109@gandalf.local.home Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--tools/lib/traceevent/event-parse.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 30e8e0c3f117..56b8a3e00522 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -4249,13 +4249,12 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
sizeof(long) != 8) {
char *p;
- ls = 2;
/* make %l into %ll */
- p = strchr(format, 'l');
- if (p)
+ if (ls == 1 && (p = strchr(format, 'l')))
memmove(p+1, p, strlen(p)+1);
else if (strcmp(format, "%p") == 0)
strcpy(format, "0x%llx");
+ ls = 2;
}
switch (ls) {
case -2: