[Xen-changelog] [xen master] libxl: add the printf-like attributes to a couple of functions

[patchbot@xxxxxxx]

commit d75610122d44efc28f91877b0f3d151fcc8d3a55
Author:     Roger Pau Monne <roger.pau@xxxxxxxxxx>
AuthorDate: Tue Apr 26 12:07:50 2016 +0200
Commit:     Wei Liu <wei.liu2@xxxxxxxxxx>
CommitDate: Wed Apr 27 14:13:00 2016 +0100

    libxl: add the printf-like attributes to a couple of functions
    
    Or else clang complains with:
    
    error: format string is not a string literal
    
    Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    Release-acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
---
 tools/libxl/libxl_internal.h    | 4 ++--
 tools/libxl/libxl_save_helper.c | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h
index 8e2cf3e..662d01a 100644
--- a/tools/libxl/libxl_internal.h
+++ b/tools/libxl/libxl_internal.h
@@ -636,7 +636,7 @@ _hidden void *libxl__realloc(libxl__gc *gc_opt, void *ptr, 
size_t new_size) NN1;
 /* print @fmt into an allocated string large enoughto contain the result.
  * (similar to gc'd asprintf(3)). */
 _hidden char *libxl__sprintf(libxl__gc *gc_opt, const char *fmt, ...) 
PRINTF_ATTRIBUTE(2, 3) NN1;
-_hidden char *libxl__vsprintf(libxl__gc *gc, const char *format, va_list ap);
+_hidden char *libxl__vsprintf(libxl__gc *gc, const char *format, va_list ap) 
PRINTF_ATTRIBUTE(2, 0);
 /* duplicate the string @c (similar to a gc'd strdup(3)). */
 _hidden char *libxl__strdup(libxl__gc *gc_opt,
                             const char *c /* may be NULL */) NN1;
@@ -709,7 +709,7 @@ _hidden char *libxl__xs_libxl_path(libxl__gc *gc, uint32_t 
domid);
  */
 
 int libxl__xs_vprintf(libxl__gc *gc, xs_transaction_t t,
-                      const char *path, const char *fmt, va_list ap);
+                      const char *path, const char *fmt, va_list ap) 
PRINTF_ATTRIBUTE(4, 0);
 int libxl__xs_printf(libxl__gc *gc, xs_transaction_t t,
                      const char *path, const char *fmt, ...) 
PRINTF_ATTRIBUTE(4, 5);
 
diff --git a/tools/libxl/libxl_save_helper.c b/tools/libxl/libxl_save_helper.c
index 5fe642a..d3def6b 100644
--- a/tools/libxl/libxl_save_helper.c
+++ b/tools/libxl/libxl_save_helper.c
@@ -52,6 +52,7 @@
 
 /*----- logger -----*/
 
+__attribute__((format(printf, 5, 0)))
 static void tellparent_vmessage(xentoollog_logger *logger_in,
                                 xentoollog_level level,
                                 int errnoval,
--
generated by git-patchbot for /home/xen/git/xen.git#master

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