Merge tag 'efi-2020-01-rc2' of https://gitlab.denx.de/u-boot/custodians/u-boot-efi

[oweals/u-boot.git] / include / log.h

diff --git a/include/log.h b/include/log.h
index 7566ba7f2dbbd8f35cb76f6577541df9e43e3dce..d8f18a6afdf38b7fb7fe0782337880af61f699db 100644 (file)
--- a/include/log.h
+++ b/include/log.h
@@ -76,6 +76,18 @@ int _log(enum log_category_t cat, enum log_level_t level, const char *file,
         int line, const char *func, const char *fmt, ...)
                __attribute__ ((format (__printf__, 6, 7)));
 
+static inline int _log_nop(enum log_category_t cat, enum log_level_t level,
+                          const char *file, int line, const char *func,
+                          const char *fmt, ...)
+               __attribute__ ((format (__printf__, 6, 7)));
+
+static inline int _log_nop(enum log_category_t cat, enum log_level_t level,
+                          const char *file, int line, const char *func,
+                          const char *fmt, ...)
+{
+       return 0;
+}
+
 /* Define this at the top of a file to add a prefix to debug messages */
 #ifndef pr_fmt
 #define pr_fmt(fmt) fmt
@@ -101,13 +113,14 @@ int _log(enum log_category_t cat, enum log_level_t level, const char *file,
 #define log_io(_fmt...)                log(LOG_CATEGORY, LOGL_DEBUG_IO, ##_fmt)
 #else
 #define _LOG_MAX_LEVEL LOGL_INFO
-#define log_err(_fmt...)
-#define log_warning(_fmt...)
-#define log_notice(_fmt...)
-#define log_info(_fmt...)
-#define log_debug(_fmt...)
-#define log_content(_fmt...)
-#define log_io(_fmt...)
+#define log_err(_fmt...)       log_nop(LOG_CATEGORY, LOGL_ERR, ##_fmt)
+#define log_warning(_fmt...)   log_nop(LOG_CATEGORY, LOGL_WARNING, ##_fmt)
+#define log_notice(_fmt...)    log_nop(LOG_CATEGORY, LOGL_NOTICE, ##_fmt)
+#define log_info(_fmt...)      log_nop(LOG_CATEGORY, LOGL_INFO, ##_fmt)
+#define log_debug(_fmt...)     log_nop(LOG_CATEGORY, LOGL_DEBUG, ##_fmt)
+#define log_content(_fmt...)   log_nop(LOG_CATEGORY, \
+                                       LOGL_DEBUG_CONTENT, ##_fmt)
+#define log_io(_fmt...)                log_nop(LOG_CATEGORY, LOGL_DEBUG_IO, ##_fmt)
 #endif
 
 #if CONFIG_IS_ENABLED(LOG)
@@ -129,6 +142,12 @@ int _log(enum log_category_t cat, enum log_level_t level, const char *file,
 #define log(_cat, _level, _fmt, _args...)
 #endif
 
+#define log_nop(_cat, _level, _fmt, _args...) ({ \
+       int _l = _level; \
+       _log_nop((enum log_category_t)(_cat), _l, __FILE__, __LINE__, \
+                     __func__, pr_fmt(_fmt), ##_args); \
+})
+
 #ifdef DEBUG
 #define _DEBUG 1
 #else
@@ -183,6 +202,18 @@ int _log(enum log_category_t cat, enum log_level_t level, const char *file,
  */
 void __assert_fail(const char *assertion, const char *file, unsigned int line,
                   const char *function);
+
+/**
+ * assert() - assert expression is true
+ *
+ * If the expression x evaluates to false and _DEBUG evaluates to true, a panic
+ * message is written and the system stalls. The value of _DEBUG is set to true
+ * if DEBUG is defined before including common.h.
+ *
+ * The expression x is always executed irrespective of the value of _DEBUG.
+ *
+ * @x:         expression to test
+ */
 #define assert(x) \
        ({ if (!(x) && _DEBUG) \
                __assert_fail(#x, __FILE__, __LINE__, __func__); })