1#ifndef _LINUX_COMPAT_H_ 2#define _LINUX_COMPAT_H_ 3 4#include <console.h> 5#include <cyclic.h> 6#include <log.h> 7#include <malloc.h> 8 9#include <asm/processor.h> 10 11#include <linux/types.h> 12#include <linux/err.h> 13#include <linux/kernel.h> 14 15#ifdef CONFIG_XEN 16#include <xen/events.h> 17#endif 18 19struct unused {}; 20typedef struct unused unused_t; 21 22struct p_current{ 23 int pid; 24}; 25 26extern struct p_current *current; 27 28#define GFP_ATOMIC ((gfp_t) 0) 29#define GFP_KERNEL ((gfp_t) 0) 30#define GFP_NOFS ((gfp_t) 0) 31#define GFP_USER ((gfp_t) 0) 32#define __GFP_NOWARN ((gfp_t) 0) 33#define __GFP_ZERO ((__force gfp_t)0x8000u) /* Return zeroed page on success */ 34 35void *kmalloc(size_t size, int flags); 36 37static inline void *kzalloc(size_t size, gfp_t flags) 38{ 39 return kmalloc(size, flags | __GFP_ZERO); 40} 41 42static inline void *kmalloc_array(size_t n, size_t size, gfp_t flags) 43{ 44 if (size != 0 && n > SIZE_MAX / size) 45 return NULL; 46 return kmalloc(n * size, flags | __GFP_ZERO); 47} 48 49static inline void *kcalloc(size_t n, size_t size, gfp_t flags) 50{ 51 return kmalloc_array(n, size, flags | __GFP_ZERO); 52} 53 54#define vmalloc(size) kmalloc(size, 0) 55#define __vmalloc(size, flags, pgsz) kmalloc(size, flags) 56static inline void *vzalloc(unsigned long size) 57{ 58 return kzalloc(size, 0); 59} 60static inline void kfree(const void *block) 61{ 62 free((void *)block); 63} 64static inline void vfree(const void *addr) 65{ 66 free((void *)addr); 67} 68 69struct kmem_cache { int sz; }; 70 71struct kmem_cache *get_mem(int element_sz); 72#define kmem_cache_create(a, sz, c, d, e) get_mem(sz) 73void *kmem_cache_alloc(struct kmem_cache *obj, int flag); 74static inline void kmem_cache_free(struct kmem_cache *cachep, void *obj) 75{ 76 free(obj); 77} 78static inline void kmem_cache_destroy(struct kmem_cache *cachep) 79{ 80 free(cachep); 81} 82 83#define DECLARE_WAITQUEUE(...) do { } while (0) 84#define add_wait_queue(...) do { } while (0) 85#define remove_wait_queue(...) do { } while (0) 86 87#ifndef CONFIG_XEN 88#define eventchn_poll() 89#endif 90 91#define __wait_event_timeout(condition, timeout, ret) \ 92({ \ 93 ulong __ret = ret; /* explicit shadow */ \ 94 ulong start = get_timer(0); \ 95 for (;;) { \ 96 eventchn_poll(); \ 97 if (condition) { \ 98 __ret = 1; \ 99 break; \ 100 } \ 101 if ((get_timer(start) > timeout) || ctrlc()) { \ 102 __ret = 0; \ 103 break; \ 104 } \ 105 cpu_relax(); \ 106 } \ 107 __ret; \ 108}) 109 110/** 111 * wait_event_timeout() - Wait until the event occurs before the timeout. 112 * @wr_head: The wait queue to wait on. 113 * @condition: Expression for the event to wait for. 114 * @timeout: Maximum waiting time. 115 * 116 * We wait until the @condition evaluates to %true (succeed) or 117 * %false (@timeout elapsed). 118 * 119 * Return: 120 * 0 - if the @condition evaluated to %false after the @timeout elapsed 121 * 1 - if the @condition evaluated to %true 122 */ 123#define wait_event_timeout(wq_head, condition, timeout) \ 124({ \ 125 ulong __ret; \ 126 if (condition) \ 127 __ret = 1; \ 128 else \ 129 __ret = __wait_event_timeout(condition, timeout, __ret);\ 130 __ret; \ 131}) 132 133#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c)) 134 135/* This is also defined in ARMv8's mmu.h */ 136#ifndef PAGE_SIZE 137#define PAGE_SIZE 4096 138#endif 139 140/* drivers/char/random.c */ 141#define get_random_bytes(...) 142 143/* include/linux/leds.h */ 144struct led_trigger {}; 145 146#define DEFINE_LED_TRIGGER(x) static struct led_trigger *x; 147enum led_brightness { 148 LED_OFF = 0, 149 LED_HALF = 127, 150 LED_FULL = 255, 151}; 152 153static inline void led_trigger_register_simple(const char *name, 154 struct led_trigger **trigger) {} 155static inline void led_trigger_unregister_simple(struct led_trigger *trigger) {} 156static inline void led_trigger_event(struct led_trigger *trigger, 157 enum led_brightness event) {} 158 159/* uapi/linux/limits.h */ 160#define XATTR_LIST_MAX 65536 /* size of extended attribute namelist (64k) */ 161 162/** 163 * The type used for indexing onto a disc or disc partition. 164 * 165 * Linux always considers sectors to be 512 bytes long independently 166 * of the devices real block size. 167 * 168 * blkcnt_t is the type of the inode's block count. 169 */ 170#ifdef CONFIG_LBDAF 171typedef u64 sector_t; 172typedef u64 blkcnt_t; 173#else 174typedef unsigned long sector_t; 175typedef unsigned long blkcnt_t; 176#endif 177 178/* module */ 179#define THIS_MODULE 0 180#define try_module_get(...) 1 181#define module_put(...) do { } while (0) 182#define module_init(...) 183#define module_exit(...) 184#define EXPORT_SYMBOL(...) 185#define EXPORT_SYMBOL_GPL(...) 186#define module_param(...) 187#define module_param_call(...) 188#define MODULE_PARM_DESC(...) 189#define MODULE_VERSION(...) 190#define MODULE_DESCRIPTION(...) 191#define MODULE_AUTHOR(...) 192#define MODULE_LICENSE(...) 193#define MODULE_ALIAS(...) 194#define __module_get(...) 195 196/* character device */ 197#define MKDEV(...) 0 198#define MAJOR(dev) 0 199#define MINOR(dev) 0 200 201#define alloc_chrdev_region(...) 0 202#define unregister_chrdev_region(...) 203 204#define class_create(...) __builtin_return_address(0) 205#define class_create_file(...) 0 206#define class_register(...) 0 207#define class_unregister(...) 208#define class_remove_file(...) 209#define class_destroy(...) 210#define misc_register(...) 0 211#define misc_deregister(...) 212 213#define blocking_notifier_call_chain(...) 0 214 215#define __initdata 216#define late_initcall(...) 217 218#define dev_set_name(...) do { } while (0) 219#define device_register(...) 0 220#define device_unregister(...) 221#define volume_sysfs_init(...) 0 222#define volume_sysfs_close(...) do { } while (0) 223 224#define init_waitqueue_head(...) do { } while (0) 225#define wait_event_interruptible(...) 0 226#define wake_up_interruptible(...) do { } while (0) 227#define dump_stack(...) do { } while (0) 228 229#define task_pid_nr(x) 0 230#define set_freezable(...) do { } while (0) 231#define try_to_freeze(...) 0 232#define set_current_state(...) do { } while (0) 233#define kthread_should_stop(...) 0 234 235#define setup_timer(timer, func, data) do {} while (0) 236#define del_timer_sync(timer) do {} while (0) 237#define schedule_work(work) do {} while (0) 238#define INIT_WORK(work, fun) do {} while (0) 239 240struct work_struct {}; 241 242unsigned long copy_from_user(void *dest, const void *src, 243 unsigned long count); 244 245typedef unused_t spinlock_t; 246typedef int wait_queue_head_t; 247 248#define spin_lock_init(lock) do {} while (0) 249#define spin_lock(lock) do {} while (0) 250#define spin_unlock(lock) do {} while (0) 251#define spin_lock_irqsave(lock, flags) do {} while (0) 252#define spin_unlock_irqrestore(lock, flags) do { flags = 0; } while (0) 253 254#define DEFINE_MUTEX(...) 255#define mutex_init(...) 256#define mutex_lock(...) 257#define mutex_unlock(...) 258 259#define init_rwsem(...) do { } while (0) 260#define down_read(...) do { } while (0) 261#define down_write(...) do { } while (0) 262#define down_write_trylock(...) 1 263#define up_read(...) do { } while (0) 264#define up_write(...) do { } while (0) 265 266#define cond_resched() do { } while (0) 267#define yield() do { } while (0) 268 269#define __init 270#define __exit 271#define __devinit 272#define __devinitdata 273#define __devinitconst 274#define __initconst 275#define __initdata 276 277#define kthread_create(...) __builtin_return_address(0) 278#define kthread_stop(...) do { } while (0) 279#define wake_up_process(...) do { } while (0) 280 281struct rw_semaphore { int i; }; 282#define down_write(...) do { } while (0) 283#define up_write(...) do { } while (0) 284#define down_read(...) do { } while (0) 285#define up_read(...) do { } while (0) 286struct device { 287 struct device *parent; 288 struct class *class; 289 dev_t devt; /* dev_t, creates the sysfs "dev" */ 290 void (*release)(struct device *dev); 291 /* This is used from drivers/usb/musb-new subsystem only */ 292 void *driver_data; /* data private to the driver */ 293 void *device_data; /* data private to the device */ 294}; 295struct mutex { int i; }; 296struct kernel_param { int i; }; 297 298struct cdev { 299 int owner; 300 dev_t dev; 301}; 302#define cdev_init(...) do { } while (0) 303#define cdev_add(...) 0 304#define cdev_del(...) do { } while (0) 305 306#define prandom_u32(...) 0 307 308typedef struct { 309 uid_t val; 310} kuid_t; 311 312typedef struct { 313 gid_t val; 314} kgid_t; 315 316/* from include/linux/types.h */ 317 318/** 319 * struct callback_head - callback structure for use with RCU and task_work 320 * @next: next update requests in a list 321 * @func: actual update function to call after the grace period. 322 */ 323struct callback_head { 324 struct callback_head *next; 325 void (*func)(struct callback_head *head); 326}; 327#define rcu_head callback_head 328enum writeback_sync_modes { 329 WB_SYNC_NONE, /* Don't wait on anything */ 330 WB_SYNC_ALL, /* Wait on every mapping */ 331}; 332 333/* from include/linux/writeback.h */ 334/* 335 * A control structure which tells the writeback code what to do. These are 336 * always on the stack, and hence need no locking. They are always initialised 337 * in a manner such that unspecified fields are set to zero. 338 */ 339struct writeback_control { 340 long nr_to_write; /* Write this many pages, and decrement 341 this for each page written */ 342 long pages_skipped; /* Pages which were not written */ 343 344 /* 345 * For a_ops->writepages(): if start or end are non-zero then this is 346 * a hint that the filesystem need only write out the pages inside that 347 * byterange. The byte at `end' is included in the writeout request. 348 */ 349 loff_t range_start; 350 loff_t range_end; 351 352 enum writeback_sync_modes sync_mode; 353 354 unsigned for_kupdate:1; /* A kupdate writeback */ 355 unsigned for_background:1; /* A background writeback */ 356 unsigned tagged_writepages:1; /* tag-and-write to avoid livelock */ 357 unsigned for_reclaim:1; /* Invoked from the page allocator */ 358 unsigned range_cyclic:1; /* range_start is cyclic */ 359 unsigned for_sync:1; /* sync(2) WB_SYNC_ALL writeback */ 360}; 361 362void *kmemdup(const void *src, size_t len, gfp_t gfp); 363 364typedef int irqreturn_t; 365 366struct timer_list {}; 367struct notifier_block {}; 368 369typedef unsigned long dmaaddr_t; 370 371#define pm_runtime_get_sync(dev) do {} while (0) 372#define pm_runtime_put(dev) do {} while (0) 373#define pm_runtime_put_sync(dev) do {} while (0) 374#define pm_runtime_use_autosuspend(dev) do {} while (0) 375#define pm_runtime_set_autosuspend_delay(dev, delay) do {} while (0) 376#define pm_runtime_enable(dev) do {} while (0) 377 378#define IRQ_NONE 0 379#define IRQ_HANDLED 1 380#define IRQ_WAKE_THREAD 2 381 382#define dev_set_drvdata(dev, data) do {} while (0) 383 384#define enable_irq(...) 385#define disable_irq(...) 386#define disable_irq_wake(irq) do {} while (0) 387#define enable_irq_wake(irq) -EINVAL 388#define free_irq(irq, data) do {} while (0) 389#define request_irq(nr, f, flags, nm, data) 0 390 391#endif 392