[PATCH v2 03/20] trace: fix handling of char** in UST backend

["Daniel P. Berrangé" <berrange@redhat.com>]

The UST trace backend fails to compile on version 2.14.0, as we
pass a "char **" arg as to ctf_string(), which only expects 'char *'.
It should instead be treated the same way as generic pointers, and
emitted as hex.

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
---
 scripts/tracetool/format/ust_events_h.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/scripts/tracetool/format/ust_events_h.py b/scripts/tracetool/format/ust_events_h.py
index cee7970a403..76c883bc5c0 100644
--- a/scripts/tracetool/format/ust_events_h.py
+++ b/scripts/tracetool/format/ust_events_h.py
@@ -72,7 +72,9 @@ def generate(events, backend, group):
             names = e.args.names()
             fmts = e.formats()
             for t,n,f in zip(types, names, fmts):
-                if ('char *' in t) or ('char*' in t):
+                if ('char **' in t) or ('char**' in t):
+                    out('       ctf_integer_hex(' + t + ', ' + n + ', ' + n + ')')
+                elif ('char *' in t) or ('char*' in t):
                     out('       ctf_string(' + n + ', ' + n + ')')
                 elif ("%p" in f) or ("x" in f) or ("PRIx" in f):
                     out('       ctf_integer_hex('+ t + ', ' + n + ', ' + n + ')')
-- 
2.55.0