Changeset 930 for trunk/softs/tsar_boot/src/reset_utils.c

Timestamp:

Jan 27, 2015, 5:20:19 PM (9 years ago)

Author:

cfuguet

Message:

tsar_boot: using global variable for the block device block cache

• Some GCC versions have a problem to align as indicated with the attribute(aligned()) macro the functions' local variables. Therefore, using a global variable instead of a static local variable for the block cache because this last must be aligned to a cache line.

File:

• trunk/softs/tsar_boot/src/reset_utils.c (modified) (2 diffs)

trunk/softs/tsar_boot/src/reset_utils.c

@@ -12 +12 @@
 #include <io.h>
 
+/*
+ * Cache block data buffer and cached block index
+ */
+struct aligned_blk blk_buf;
+int blk_buf_idx;
+
 /**
  * \param file_offset: Disk relative offset of file
@@ -24 +30 @@
 int pread(size_t file_offset, void *buf, size_t nbyte, size_t offset) {
     if (nbyte == 0) return 0;
-
-    /*
-     * Cache block data buffer and cached block index
-     */
-    static struct aligned_blk blk_buf;
-    static int blk_buf_idx = -1;
 
     char *dst;