Change string concats to work with all OSs

[yaffs2.git] / yportenv.h

diff --git a/yportenv.h b/yportenv.h
index e8b9d097c35a978238720b3f2f3caaa81108b640..ae2c5b6ecfe133b92554fecd0c204f0bf40dafad 100644 (file)
--- a/yportenv.h
+++ b/yportenv.h
@@ -1,9 +1,7 @@
 /*
- * YAFFS: Yet another FFS. A NAND-flash specific file system. 
- * yportenv.h: Portable services used by yaffs. This is done to allow
- * simple migration from kernel space into app space for testing.
+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
  *
- * Copyright (C) 2002 Aleph One Ltd.
+ * Copyright (C) 2002-2007 Aleph One Ltd.
  *   for Toby Churchill Ltd and Brightstar Engineering
  *
  * Created by Charles Manning <charles@aleph1.co.uk>
@@ -12,16 +10,21 @@
  * it under the terms of the GNU Lesser General Public License version 2.1 as
  * published by the Free Software Foundation.
  *
- *
  * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- *
- * $Id: yportenv.h,v 1.11 2006-05-21 09:39:12 charles Exp $
- *
  */
 
+
 #ifndef __YPORTENV_H__
 #define __YPORTENV_H__
 
+/*
+ * Define the MTD version in terms of Linux Kernel versions
+ * This allows yaffs to be used independantly of the kernel
+ * as well as with it.
+ */
+
+#define MTD_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
+
 #if defined CONFIG_YAFFS_WINCE
 
 #include "ywinceenv.h"
@@ -31,10 +34,16 @@
 #include "moduleconfig.h"
 
 /* Linux kernel */
+
+#include <linux/version.h>
+#define MTD_VERSION_CODE LINUX_VERSION_CODE
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
 #include <linux/config.h>
+#endif
 #include <linux/kernel.h>
-#include <linux/version.h>
 #include <linux/mm.h>
+#include <linux/sched.h>
 #include <linux/string.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
@@ -42,8 +51,10 @@
 #define YCHAR char
 #define YUCHAR unsigned char
 #define _Y(x)     x
+#define yaffs_strcat(a,b)    strcat(a,b)
 #define yaffs_strcpy(a,b)    strcpy(a,b)
 #define yaffs_strncpy(a,b,c) strncpy(a,b,c)
+#define yaffs_strncmp(a,b,c) strncmp(a,b,c)
 #define yaffs_strlen(s)             strlen(s)
 #define yaffs_sprintf       sprintf
 #define yaffs_toupper(a)     toupper(a)
@@ -54,7 +65,7 @@
 #define YAFFS_LOSTNFOUND_PREFIX                "obj"
 
 /* #define YPRINTF(x) printk x */
-#define YMALLOC(x) kmalloc(x,GFP_KERNEL)
+#define YMALLOC(x) kmalloc(x,GFP_NOFS)
 #define YFREE(x)   kfree(x)
 #define YMALLOC_ALT(x) vmalloc(x)
 #define YFREE_ALT(x)   vfree(x)
@@ -63,7 +74,7 @@
 // KR - added for use in scan so processes aren't blocked indefinitely.
 #define YYIELD() schedule()
 
-#define YAFFS_ROOT_MODE                                0666
+#define YAFFS_ROOT_MODE                        0666
 #define YAFFS_LOSTNFOUND_MODE          0666
 
 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
@@ -79,10 +90,21 @@
 
 #define TENDSTR "\n"
 #define TSTR(x) KERN_WARNING x
+#define TCONT(x) x
 #define TOUT(p) printk p
 
+#define yaffs_trace(mask, fmt, args...) \
+       do { if ((mask) & (yaffs_traceMask|YAFFS_TRACE_ERROR)) \
+               printk(KERN_WARNING "yaffs: " fmt, ## args); \
+       } while (0)
+
+#define compile_time_assertion(assertion) \
+       ({ int x = __builtin_choose_expr(assertion, 0, (void)0); (void) x; })
+
 #elif defined CONFIG_YAFFS_DIRECT
 
+#define MTD_VERSION_CODE MTD_VERSION(2,6,22)
+
 /* Direct interface */
 #include "ydirectenv.h"
 
@@ -104,6 +126,7 @@
 #define YCHAR char
 #define YUCHAR unsigned char
 #define _Y(x)     x
+#define yaffs_strcat(a,b)    strcat(a,b)
 #define yaffs_strcpy(a,b)    strcpy(a,b)
 #define yaffs_strncpy(a,b,c) strncpy(a,b,c)
 #define yaffs_strlen(s)             strlen(s)
@@ -135,9 +158,15 @@
 
 #endif
 
-extern unsigned yaffs_traceMask;
+/* see yaffs_fs.c */
+extern unsigned int yaffs_traceMask;
+extern unsigned int yaffs_wr_attempts;
+
+/*
+ * Tracing flags.
+ * The flags masked in YAFFS_TRACE_ALWAYS are always traced.
+ */
 
-#define YAFFS_TRACE_ERROR              0x00000001
 #define YAFFS_TRACE_OS                 0x00000002
 #define YAFFS_TRACE_ALLOCATE           0x00000004
 #define YAFFS_TRACE_SCAN               0x00000008
@@ -153,13 +182,22 @@ extern unsigned yaffs_traceMask;
 #define YAFFS_TRACE_SCAN_DEBUG         0x00002000
 #define YAFFS_TRACE_MTD                        0x00004000
 #define YAFFS_TRACE_CHECKPOINT         0x00008000
-#define YAFFS_TRACE_ALWAYS             0x40000000
+
+#define YAFFS_TRACE_VERIFY             0x00010000
+#define YAFFS_TRACE_VERIFY_NAND                0x00020000
+#define YAFFS_TRACE_VERIFY_FULL                0x00040000
+#define YAFFS_TRACE_VERIFY_ALL         0x000F0000
+
+
+#define YAFFS_TRACE_ERROR              0x40000000
 #define YAFFS_TRACE_BUG                        0x80000000
+#define YAFFS_TRACE_ALWAYS             0xF0000000
+
 
-#define T(mask,p) do{ if((mask) & (yaffs_traceMask | YAFFS_TRACE_ERROR)) TOUT(p);} while(0)
+#define T(mask,p) do{ if((mask) & (yaffs_traceMask | YAFFS_TRACE_ALWAYS)) TOUT(p);} while(0)
 
-#ifndef CONFIG_YAFFS_WINCE
-#define YBUG() T(YAFFS_TRACE_BUG,(TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),__LINE__))
+#ifndef YBUG
+#define YBUG() do {T(YAFFS_TRACE_BUG,(TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),__LINE__));} while(0)
 #endif
 
 #endif