Changeset 23 for trunk/kernel/kern/printk.h

Timestamp:

Jun 18, 2017, 10:06:41 PM (6 years ago)

Author:

alain

Message:

Introduce syscalls.

File:

• trunk/kernel/kern/printk.h (modified) (4 diffs)

trunk/kernel/kern/printk.h

@@ -46 +46 @@
 
 /**********************************************************************************
+ * This function build a formated string.
+ * The supported formats are defined below :
+ *   %c : single character
+ *   %d : signed decimal 32 bits integer
+ *   %u : unsigned decimal 32 bits integer
+ *   %x : hexadecimal 32 bits integer
+ *   %l : hexadecimal 64 bits integer
+ *   %s : NUL terminated character string
+ **********************************************************************************
+ * @ string     : pointer on target buffer (allocated by caller).
+ * @ length     : target buffer length (number of bytes).
+ * @ format     : format respecting the printf syntax.
+ * @ returns the string length (including NUL) if success / return -1 if error.
+ *********************************************************************************/
+uint32_t snprintf( char     * string,
+                   uint32_t   length,
+                   char     * format, ... );
+
+/**********************************************************************************
  * This function displays a formated string on the kernel terminal TXT0,
  * using a busy waiting policy: It calls directly the relevant TXT driver, 
@@ -52 +71 @@
  * @ format     : formated string.
  *********************************************************************************/
-extern void         printk( char* format, ... );
+void         printk( char* format, ... );
 
 /**********************************************************************************
@@ -62 +81 @@
  * @ format     : formated string.
  *********************************************************************************/
-extern void         user_printk( char* format, ... );
+void         user_printk( char* format, ... );
 
 /**********************************************************************************
@@ -211 +230 @@
 #else
 #define sched_dmsg(...)
+#endif
+
+#if CONFIG_SIGNAL_DEBUG
+#define signal_dmsg(...)   printk(__VA_ARGS__)
+#else
+#define signal_dmsg(...)
 #endif