[Qemu-devel] [PATCH] trace: Fix 'char **' compilation error in simple backend

[Fam Zheng]

Currently, the generated function body will do "strlen(arg)" but the
argument could be 'char **'. Avoid that by exclusding such cases in
is_string check.

Reported by patchew's "make address@hidden".

Signed-off-by: Fam Zheng <address@hidden>
---
 scripts/tracetool/backend/simple.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/scripts/tracetool/backend/simple.py 
b/scripts/tracetool/backend/simple.py
index 9885e83..2538795 100644
--- a/scripts/tracetool/backend/simple.py
+++ b/scripts/tracetool/backend/simple.py
@@ -21,7 +21,9 @@ PUBLIC = True
 
 def is_string(arg):
     strtype = ('const char*', 'char*', 'const char *', 'char *')
-    if arg.lstrip().startswith(strtype):
+    non_strtype = ('const char**', 'char**', 'const char **', 'char **')
+    arg_strip = arg.lstrip()
+    if arg_strip.startswith(strtype) and not arg_strip.startswith(non_strtype):
         return True
     else:
         return False
-- 
2.7.4