Changeset 345 for soft/giet_vm/giet_fat32

Timestamp:

Jun 25, 2014, 2:19:37 PM (10 years ago)

Author:

cfuguet

Message:

giet_vm optimizations:

• Several modifications in GIET_VM in order to support compilation with GCC optimizations (-O2) activated.

• Adding missing volatile in some global variables.

• Using ioread and iowrite utility functions in peripheral drivers which prevent GCC to remove writes or reads in hardware memory mapped registers.

• Code refactoring of stdio printf functions. Now, shr_printf and tty_printf function reuse the same function body. The only difference is that shr_printf wraps printf function call with TTY get lock and release lock.

File:

• soft/giet_vm/giet_fat32/fat32.c (modified) (5 diffs)

soft/giet_vm/giet_fat32/fat32.c

@@ -533 +533 @@
                     (ord  != NO_MORE_ENTRY ) )         // SFN entry : checked
             {
-                _memcpy( dir_entry, fat.fat_cache + offset, DIR_ENTRY_SIZE );    
+                memcpy( dir_entry, fat.fat_cache + offset, DIR_ENTRY_SIZE );    
             }
             else if (ord == NO_MORE_ENTRY )            // end of directory : return
@@ -552 +552 @@
                     (ord != NO_MORE_ENTRY) )           // LFN entry : checked
             {
-                _memcpy( dir_entry, fat.fat_cache + offset, DIR_ENTRY_SIZE );    
+                memcpy( dir_entry, fat.fat_cache + offset, DIR_ENTRY_SIZE );    
             }
             else if ( (attr != ATTR_LONG_NAME_MASK) && 
@@ -910 +910 @@
                           (ord  != NO_MORE_ENTRY ) )         // SFN entry : checked
                 {
-                    _memcpy( dir_entry, fat.fat_cache + offset, DIR_ENTRY_SIZE );    
+                    memcpy( dir_entry, fat.fat_cache + offset, DIR_ENTRY_SIZE );    
                     offset = offset + DIR_ENTRY_SIZE;
                 }
@@ -929 +929 @@
                     (ord != NO_MORE_ENTRY) )                 // LFN entry : checked
                 {
-                    _memcpy( dir_entry, fat.fat_cache + offset, DIR_ENTRY_SIZE );    
+                    memcpy( dir_entry, fat.fat_cache + offset, DIR_ENTRY_SIZE );    
                     offset = offset + DIR_ENTRY_SIZE;
                 }
@@ -980 +980 @@
         else    // file found
         {
-            _memcpy( dir_entry, fat.fat_cache + offset, DIR_ENTRY_SIZE );    
+            memcpy( dir_entry, fat.fat_cache + offset, DIR_ENTRY_SIZE );    
             offset     = offset + DIR_ENTRY_SIZE;
             *file_size = read_entry( DIR_FILE_SIZE, dir_entry, 1 );