Changeset 178 for soft/giet_vm/libs/common.h

Timestamp:

Jul 22, 2012, 12:06:11 PM (12 years ago)

Author:

karaoui

Message:

updating libs.

File:

• soft/giet_vm/libs/common.h (modified) (4 diffs)

soft/giet_vm/libs/common.h

@@ -1 +1 @@
 //////////////////////////////////////////////////////////////////////////////////
-// File     : common.h         
-// Date     : 20/07/2012
-// Author   : mohamed karaoui
+// File         : common.h         
+// Date         : 20/07/2012
+// Maintener    : mohamed karaoui
 // Copyright (c) UPMC-LIP6
 ///////////////////////////////////////////////////////////////////////////////////
@@ -8 +8 @@
 #ifndef _COMMON_H_
 #define _COMMON_H_
+
+/*
+ * memcpy, memset function
+ * This function is required because it can be gnerated by GCC 
+ * during compilation so we must provide it.
+ * Code taken from MutekH.
+ */
+//////////////////////////////////////////////////////////////////////////
+static inline void *memcpy(void *_dst, const void *_src, unsigned int size)
+{
+    unsigned int *dst = _dst;
+    const unsigned int *src = _src;
+
+    /* if source and destination buffer are word-aligned,
+     * then copy word-by-word */
+    if (!((unsigned int)dst & 3) && !((unsigned int)src & 3))
+        while (size > 3) {
+            *dst++ = *src++;
+            size -= 4;
+        }
+
+    unsigned char *cdst = (unsigned char*)dst;
+    unsigned char *csrc = (unsigned char*)src;
+
+    /* byte-by-byte copy */
+    while (size--) {
+        *cdst++ = *csrc++;
+    }
+    return _dst;
+}
+
+//////////////////////////////////////////////////////////
+static inline void * memset(void *dst, int s, unsigned int count)
+{
+        char *a = (char *) dst;
+        while (count--)
+                *a++ = (char)s;
+        return dst;
+}
 
 /**
@@ -26 +65 @@
    Taken from Mutekh(SRL API)
  */
-
 static inline void __abort()
 {
@@ -33 +71 @@
 }
 
-////////////////////////////////////////////////////////////////////////////////////////
-//  mempcy()
-// GCC may requires this function. Taken from MutekH.
-////////////////////////////////////////////////////////////////////////////////////////
-void *memcpy(void *_dst, const void *_src, unsigned int size);
-
-////////////////////////////////////////////////////////////////////////////////////////
-//  memset()
-// GCC may requires this function. Taken from MutekH.
-////////////////////////////////////////////////////////////////////////////////////////
-inline void * memset(void *dst, int s, unsigned int count);
-
 #endif /* _COMMON_H_ */