log: Enable varargs format warnings

[libsigrokdecode.git] / libsigrokdecode-internal.h

diff --git a/libsigrokdecode-internal.h b/libsigrokdecode-internal.h
index e9aef649b93697e430cc3586c2298b9c613e3c7c..bcf6bb75b243a027a727db752a3af97f8240f392 100644 (file)
--- a/libsigrokdecode-internal.h
+++ b/libsigrokdecode-internal.h
@@ -61,17 +61,27 @@ SRD_PRIV struct srd_decoder_inst *srd_inst_find_by_obj( const GSList *stack,
 SRD_PRIV int srd_inst_start(struct srd_decoder_inst *di);
 SRD_PRIV int srd_inst_decode(const struct srd_decoder_inst *di,
                uint64_t start_samplenum, uint64_t end_samplenum,
-               const uint8_t *inbuf, uint64_t inbuflen);
+               const uint8_t *inbuf, uint64_t inbuflen, uint64_t unitsize);
 SRD_PRIV void srd_inst_free(struct srd_decoder_inst *di);
 SRD_PRIV void srd_inst_free_all(struct srd_session *sess, GSList *stack);
 
 /* log.c */
-SRD_PRIV int srd_log(int loglevel, const char *format, ...);
-SRD_PRIV int srd_spew(const char *format, ...);
-SRD_PRIV int srd_dbg(const char *format, ...);
-SRD_PRIV int srd_info(const char *format, ...);
-SRD_PRIV int srd_warn(const char *format, ...);
-SRD_PRIV int srd_err(const char *format, ...);
+#if defined(G_OS_WIN32) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
+/*
+ * On MinGW, we need to specify the gnu_printf format flavor or GCC
+ * will assume non-standard Microsoft printf syntax.
+ */
+SRD_PRIV int srd_log(int loglevel, const char *format, ...)
+               __attribute__((__format__ (__gnu_printf__, 2, 3)));
+#else
+SRD_PRIV int srd_log(int loglevel, const char *format, ...) G_GNUC_PRINTF(2, 3);
+#endif
+
+#define srd_spew(...)  srd_log(SRD_LOG_SPEW, __VA_ARGS__)
+#define srd_dbg(...)   srd_log(SRD_LOG_DBG,  __VA_ARGS__)
+#define srd_info(...)  srd_log(SRD_LOG_INFO, __VA_ARGS__)
+#define srd_warn(...)  srd_log(SRD_LOG_WARN, __VA_ARGS__)
+#define srd_err(...)   srd_log(SRD_LOG_ERR,  __VA_ARGS__)
 
 /* module_sigrokdecode.c */
 PyMODINIT_FUNC PyInit_sigrokdecode(void);