include/linux/compat.h

   1 #ifndef _LINUX_COMPAT_H_
   2 #define _LINUX_COMPAT_H_
   3
   4 #include <malloc.h>
   5 #include <linux/types.h>
   6 #include <linux/err.h>
   7 #include <linux/kernel.h>
   8
   9 struct unused {};
  10 typedef struct unused unused_t;
  11
  12 struct p_current{
  13        int pid;
  14 };
  15
  16 extern struct p_current *current;
  17
  18 /* avoid conflict with <dm/device.h> */
  19 #ifdef dev_dbg
  20 #undef dev_dbg
  21 #endif
  22 #ifdef dev_vdbg
  23 #undef dev_vdbg
  24 #endif
  25 #ifdef dev_info
  26 #undef dev_info
  27 #endif
  28 #ifdef dev_err
  29 #undef dev_err
  30 #endif
  31 #ifdef dev_warn
  32 #undef dev_warn
  33 #endif
  34
  35 #define dev_dbg(dev, fmt, args...)              \
  36         debug(fmt, ##args)
  37 #define dev_vdbg(dev, fmt, args...)             \
  38         debug(fmt, ##args)
  39 #define dev_info(dev, fmt, args...)             \
  40         printf(fmt, ##args)
  41 #define dev_err(dev, fmt, args...)              \
  42         printf(fmt, ##args)
  43 #define dev_warn(dev, fmt, args...)             \
  44         printf(fmt, ##args)
  45
  46 #define GFP_ATOMIC ((gfp_t) 0)
  47 #define GFP_KERNEL ((gfp_t) 0)
  48 #define GFP_NOFS ((gfp_t) 0)
  49 #define GFP_USER ((gfp_t) 0)
  50 #define __GFP_NOWARN ((gfp_t) 0)
  51 #define __GFP_ZERO      ((__force gfp_t)0x8000u)        /* Return zeroed page on success */
  52
  53 void *kmalloc(size_t size, int flags);
  54
  55 static inline void *kzalloc(size_t size, gfp_t flags)
  56 {
  57         return kmalloc(size, flags | __GFP_ZERO);
  58 }
  59
  60 static inline void *kmalloc_array(size_t n, size_t size, gfp_t flags)
  61 {
  62         if (size != 0 && n > SIZE_MAX / size)
  63                 return NULL;
  64         return kmalloc(n * size, flags | __GFP_ZERO);
  65 }
  66
  67 static inline void *kcalloc(size_t n, size_t size, gfp_t flags)
  68 {
  69         return kmalloc_array(n, size, flags | __GFP_ZERO);
  70 }
  71
  72 #define vmalloc(size)   kmalloc(size, 0)
  73 #define __vmalloc(size, flags, pgsz)    kmalloc(size, flags)
  74 static inline void *vzalloc(unsigned long size)
  75 {
  76         return kzalloc(size, 0);
  77 }
  78 static inline void kfree(const void *block)
  79 {
  80         free((void *)block);
  81 }
  82 static inline void vfree(const void *addr)
  83 {
  84         free((void *)addr);
  85 }
  86
  87 struct kmem_cache { int sz; };
  88
  89 struct kmem_cache *get_mem(int element_sz);
  90 #define kmem_cache_create(a, sz, c, d, e)       get_mem(sz)
  91 void *kmem_cache_alloc(struct kmem_cache *obj, int flag);
  92 static inline void kmem_cache_free(struct kmem_cache *cachep, void *obj)
  93 {
  94         free(obj);
  95 }
  96 static inline void kmem_cache_destroy(struct kmem_cache *cachep)
  97 {
  98         free(cachep);
  99 }
 100
 101 #define DECLARE_WAITQUEUE(...)  do { } while (0)
 102 #define add_wait_queue(...)     do { } while (0)
 103 #define remove_wait_queue(...)  do { } while (0)
 104
 105 #define KERNEL_VERSION(a,b,c)   (((a) << 16) + ((b) << 8) + (c))
 106
 107 #define PAGE_SIZE       4096
 108
 109 /* drivers/char/random.c */
 110 #define get_random_bytes(...)
 111
 112 /* include/linux/leds.h */
 113 struct led_trigger {};
 114
 115 #define DEFINE_LED_TRIGGER(x)           static struct led_trigger *x;
 116 enum led_brightness {
 117         LED_OFF         = 0,
 118         LED_HALF        = 127,
 119         LED_FULL        = 255,
 120 };
 121
 122 static inline void led_trigger_register_simple(const char *name,
 123                                         struct led_trigger **trigger) {}
 124 static inline void led_trigger_unregister_simple(struct led_trigger *trigger) {}
 125 static inline void led_trigger_event(struct led_trigger *trigger,
 126                                         enum led_brightness event) {}
 127
 128 /* uapi/linux/limits.h */
 129 #define XATTR_LIST_MAX 65536    /* size of extended attribute namelist (64k) */
 130
 131 /**
 132  * The type used for indexing onto a disc or disc partition.
 133  *
 134  * Linux always considers sectors to be 512 bytes long independently
 135  * of the devices real block size.
 136  *
 137  * blkcnt_t is the type of the inode's block count.
 138  */
 139 #ifdef CONFIG_LBDAF
 140 typedef u64 sector_t;
 141 typedef u64 blkcnt_t;
 142 #else
 143 typedef unsigned long sector_t;
 144 typedef unsigned long blkcnt_t;
 145 #endif
 146
 147 /* module */
 148 #define THIS_MODULE             0
 149 #define try_module_get(...)     1
 150 #define module_put(...)         do { } while (0)
 151 #define module_init(...)
 152 #define module_exit(...)
 153 #define EXPORT_SYMBOL(...)
 154 #define EXPORT_SYMBOL_GPL(...)
 155 #define module_param(...)
 156 #define module_param_call(...)
 157 #define MODULE_PARM_DESC(...)
 158 #define MODULE_VERSION(...)
 159 #define MODULE_DESCRIPTION(...)
 160 #define MODULE_AUTHOR(...)
 161 #define MODULE_LICENSE(...)
 162 #define MODULE_ALIAS(...)
 163 #define __module_get(...)
 164
 165 /* character device */
 166 #define MKDEV(...)                      0
 167 #define MAJOR(dev)                      0
 168 #define MINOR(dev)                      0
 169
 170 #define alloc_chrdev_region(...)        0
 171 #define unregister_chrdev_region(...)
 172
 173 #define class_create(...)               __builtin_return_address(0)
 174 #define class_create_file(...)          0
 175 #define class_register(...)             0
 176 #define class_unregister(...)
 177 #define class_remove_file(...)
 178 #define class_destroy(...)
 179 #define misc_register(...)              0
 180 #define misc_deregister(...)
 181
 182 #define blocking_notifier_call_chain(...) 0
 183
 184 #define __initdata
 185 #define late_initcall(...)
 186
 187 #define dev_set_name(...)               do { } while (0)
 188 #define device_register(...)            0
 189 #define device_unregister(...)
 190 #define volume_sysfs_init(...)          0
 191 #define volume_sysfs_close(...)         do { } while (0)
 192
 193 #define init_waitqueue_head(...)        do { } while (0)
 194 #define wait_event_interruptible(...)   0
 195 #define wake_up_interruptible(...)      do { } while (0)
 196 #define print_hex_dump(...)             do { } while (0)
 197 #define dump_stack(...)                 do { } while (0)
 198
 199 #define task_pid_nr(x)                  0
 200 #define set_freezable(...)              do { } while (0)
 201 #define try_to_freeze(...)              0
 202 #define set_current_state(...)          do { } while (0)
 203 #define kthread_should_stop(...)        0
 204 #define schedule()                      do { } while (0)
 205
 206 #define setup_timer(timer, func, data) do {} while (0)
 207 #define del_timer_sync(timer) do {} while (0)
 208 #define schedule_work(work) do {} while (0)
 209 #define INIT_WORK(work, fun) do {} while (0)
 210
 211 struct work_struct {};
 212
 213 unsigned long copy_from_user(void *dest, const void *src,
 214                              unsigned long count);
 215
 216 typedef unused_t spinlock_t;
 217 typedef int     wait_queue_head_t;
 218
 219 #define spin_lock_init(lock) do {} while (0)
 220 #define spin_lock(lock) do {} while (0)
 221 #define spin_unlock(lock) do {} while (0)
 222 #define spin_lock_irqsave(lock, flags) do { debug("%lu\n", flags); } while (0)
 223 #define spin_unlock_irqrestore(lock, flags) do { flags = 0; } while (0)
 224
 225 #define DEFINE_MUTEX(...)
 226 #define mutex_init(...)
 227 #define mutex_lock(...)
 228 #define mutex_unlock(...)
 229
 230 #define init_rwsem(...)                 do { } while (0)
 231 #define down_read(...)                  do { } while (0)
 232 #define down_write(...)                 do { } while (0)
 233 #define down_write_trylock(...)         1
 234 #define up_read(...)                    do { } while (0)
 235 #define up_write(...)                   do { } while (0)
 236
 237 #define cond_resched()                  do { } while (0)
 238 #define yield()                         do { } while (0)
 239
 240 #define __init
 241 #define __exit
 242 #define __devinit
 243 #define __devinitdata
 244 #define __devinitconst
 245
 246 #define kthread_create(...)     __builtin_return_address(0)
 247 #define kthread_stop(...)       do { } while (0)
 248 #define wake_up_process(...)    do { } while (0)
 249
 250 struct rw_semaphore { int i; };
 251 #define down_write(...)                 do { } while (0)
 252 #define up_write(...)                   do { } while (0)
 253 #define down_read(...)                  do { } while (0)
 254 #define up_read(...)                    do { } while (0)
 255 struct device {
 256         struct device           *parent;
 257         struct class            *class;
 258         dev_t                   devt;   /* dev_t, creates the sysfs "dev" */
 259         void    (*release)(struct device *dev);
 260         /* This is used from drivers/usb/musb-new subsystem only */
 261         void            *driver_data;   /* data private to the driver */
 262         void            *device_data;   /* data private to the device */
 263 };
 264 struct mutex { int i; };
 265 struct kernel_param { int i; };
 266
 267 struct cdev {
 268         int owner;
 269         dev_t dev;
 270 };
 271 #define cdev_init(...)          do { } while (0)
 272 #define cdev_add(...)           0
 273 #define cdev_del(...)           do { } while (0)
 274
 275 #define prandom_u32(...)        0
 276
 277 typedef struct {
 278         uid_t val;
 279 } kuid_t;
 280
 281 typedef struct {
 282         gid_t val;
 283 } kgid_t;
 284
 285 /* from include/linux/types.h */
 286
 287 /**
 288  * struct callback_head - callback structure for use with RCU and task_work
 289  * @next: next update requests in a list
 290  * @func: actual update function to call after the grace period.
 291  */
 292 struct callback_head {
 293         struct callback_head *next;
 294         void (*func)(struct callback_head *head);
 295 };
 296 #define rcu_head callback_head
 297 enum writeback_sync_modes {
 298         WB_SYNC_NONE,   /* Don't wait on anything */
 299         WB_SYNC_ALL,    /* Wait on every mapping */
 300 };
 301
 302 /* from include/linux/writeback.h */
 303 /*
 304  * A control structure which tells the writeback code what to do.  These are
 305  * always on the stack, and hence need no locking.  They are always initialised
 306  * in a manner such that unspecified fields are set to zero.
 307  */
 308 struct writeback_control {
 309         long nr_to_write;               /* Write this many pages, and decrement
 310                                            this for each page written */
 311         long pages_skipped;             /* Pages which were not written */
 312
 313         /*
 314          * For a_ops->writepages(): if start or end are non-zero then this is
 315          * a hint that the filesystem need only write out the pages inside that
 316          * byterange.  The byte at `end' is included in the writeout request.
 317          */
 318         loff_t range_start;
 319         loff_t range_end;
 320
 321         enum writeback_sync_modes sync_mode;
 322
 323         unsigned for_kupdate:1;         /* A kupdate writeback */
 324         unsigned for_background:1;      /* A background writeback */
 325         unsigned tagged_writepages:1;   /* tag-and-write to avoid livelock */
 326         unsigned for_reclaim:1;         /* Invoked from the page allocator */
 327         unsigned range_cyclic:1;        /* range_start is cyclic */
 328         unsigned for_sync:1;            /* sync(2) WB_SYNC_ALL writeback */
 329 };
 330
 331 void *kmemdup(const void *src, size_t len, gfp_t gfp);
 332
 333 typedef int irqreturn_t;
 334
 335 struct timer_list {};
 336 struct notifier_block {};
 337
 338 typedef unsigned long dmaaddr_t;
 339
 340 #define pm_runtime_get_sync(dev) do {} while (0)
 341 #define pm_runtime_put(dev) do {} while (0)
 342 #define pm_runtime_put_sync(dev) do {} while (0)
 343 #define pm_runtime_use_autosuspend(dev) do {} while (0)
 344 #define pm_runtime_set_autosuspend_delay(dev, delay) do {} while (0)
 345 #define pm_runtime_enable(dev) do {} while (0)
 346
 347 #define IRQ_NONE 0
 348 #define IRQ_HANDLED 1
 349 #define IRQ_WAKE_THREAD 2
 350
 351 #define dev_set_drvdata(dev, data) do {} while (0)
 352
 353 #define enable_irq(...)
 354 #define disable_irq(...)
 355 #define disable_irq_wake(irq) do {} while (0)
 356 #define enable_irq_wake(irq) -EINVAL
 357 #define free_irq(irq, data) do {} while (0)
 358 #define request_irq(nr, f, flags, nm, data) 0
 359
 360 #endif