Changeset 407 for trunk/hal/generic/hal_uspace.h

Timestamp:

Nov 7, 2017, 3:08:12 PM (7 years ago)

Author:

alain

Message:

First implementation of fork/exec.

File:

• trunk/hal/generic/hal_uspace.h (modified) (3 diffs)

trunk/hal/generic/hal_uspace.h

@@ -62 +62 @@
 
 /*****************************************************************************************
- * This function tranfers a NUL terminated string from the user space to the kernel space.
+ * This function tranfers a string from the user space to the kernel space.
+ * The transfer stops after the first encountered NUL character, and no more than
+ * <max_size> characters are actually copied to target buffer.
  * If the kernel uses physical addresses, it activates the MMU to access the user buffer.
- * TODO : implement the max_size argument handling, and error handling
  *****************************************************************************************
  * @ u_dst     : destination buffer address in user space.
@@ -70 +71 @@
  * @ max_size  : max number of characters to be copied.
  ****************************************************************************************/
-extern error_t hal_strcpy_from_uspace( char     * k_dst,
-                                       char     * u_src, 
-                                       uint32_t   max_size );
+extern void hal_strcpy_from_uspace( char     * k_dst,
+                                    char     * u_src, 
+                                    uint32_t   max_size );
 
 /*****************************************************************************************
- * This function tranfers a NUL terminated string from the kernel space to the user space.
+ * This function tranfers a string from the kernel space to the user space.
+ * The transfer stops after the first encountered NUL character, and no more than
+ * <max_size> characters are actually copied to target buffer.
  * If the kernel uses physical addresses, it activates the MMU to access the user buffer.
- * TODO : implement the max_size argument handling, and error handling
  *****************************************************************************************
  * @ u_dst     : destination buffer address in user space.
@@ -83 +85 @@
  * @ max_size  : max number of characters to be copied.
  ****************************************************************************************/
-extern error_t hal_strcpy_to_uspace( char     * u_dst,
-                                     char     * k_src,
-                                     uint32_t   max_size );
+extern void hal_strcpy_to_uspace( char     * u_dst,
+                                  char     * k_src,
+                                  uint32_t   max_size );
 
 /*****************************************************************************************