#include <linux/types.h>
#include <linux/compiler.h>
#include <linux/bitops.h>
+#include <linux/log2.h>
#include <asm/byteorder.h>
#include <asm/bug.h>
extern const char linux_banner[];
+extern const char linux_proc_banner[];
#define INT_MAX ((int)(~0U>>1))
#define INT_MIN (-INT_MAX - 1)
#define LONG_MAX ((long)(~0UL>>1))
#define LONG_MIN (-LONG_MAX - 1)
#define ULONG_MAX (~0UL)
+#define LLONG_MAX ((long long)(~0ULL>>1))
+#define LLONG_MIN (-LLONG_MAX - 1)
+#define ULLONG_MAX (~0ULL)
#define STACK_MAGIC 0xdeadbeef
-#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
-#define ALIGN(x,a) (((x)+(a)-1)&~((a)-1))
+#define ALIGN(x,a) __ALIGN_MASK(x,(typeof(x))(a)-1)
+#define __ALIGN_MASK(x,mask) (((x)+(mask))&~(mask))
+#define PTR_ALIGN(p, a) ((typeof(p))ALIGN((unsigned long)(p), (a)))
+#define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0)
+
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
+
+#define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f))
+#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
+#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
+
+#ifdef CONFIG_LBD
+# include <asm/div64.h>
+# define sector_div(a, b) do_div(a, b)
+#else
+# define sector_div(n, b)( \
+{ \
+ int _res; \
+ _res = (n) % (b); \
+ (n) /= (b); \
+ _res; \
+} \
+)
+#endif
+
+/**
+ * upper_32_bits - return bits 32-63 of a number
+ * @n: the number we're accessing
+ *
+ * A basic shift-right of a 64- or 32-bit quantity. Use this to suppress
+ * the "right shift count >= width of type" warning when that quantity is
+ * 32-bits.
+ */
+#define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))
#define KERN_EMERG "<0>" /* system is unusable */
#define KERN_ALERT "<1>" /* action must be taken immediately */
#define KERN_INFO "<6>" /* informational */
#define KERN_DEBUG "<7>" /* debug-level messages */
+/*
+ * Annotation for a "continued" line of log printout (only done after a
+ * line that had no enclosing \n). Only to be used by core/arch code
+ * during early bootup (a continued line is not SMP-safe otherwise).
+ */
+#define KERN_CONT ""
+
extern int console_printk[];
#define console_loglevel (console_printk[0])
* context (spinlock, irq-handler, ...).
*
* This is a useful debugging help to be able to catch problems early and not
- * be biten later when the calling function happens to sleep when it is not
+ * be bitten later when the calling function happens to sleep when it is not
* supposed to.
*/
#ifdef CONFIG_PREEMPT_VOLUNTARY
-extern int cond_resched(void);
-# define might_resched() cond_resched()
+extern int _cond_resched(void);
+# define might_resched() _cond_resched()
#else
# define might_resched() do { } while (0)
#endif
# define might_sleep() do { might_resched(); } while (0)
#endif
-#define might_sleep_if(cond) do { if (unlikely(cond)) might_sleep(); } while (0)
+#define might_sleep_if(cond) do { if (cond) might_sleep(); } while (0)
#define abs(x) ({ \
int __x = (x); \
(__x < 0) ? -__x : __x; \
})
-#define labs(x) ({ \
- long __x = (x); \
- (__x < 0) ? -__x : __x; \
- })
-
-extern struct notifier_block *panic_notifier_list;
+extern struct atomic_notifier_head panic_notifier_list;
extern long (*panic_blink)(long time);
NORET_TYPE void panic(const char * fmt, ...)
- __attribute__ ((NORET_AND format (printf, 1, 2)));
-fastcall NORET_TYPE void do_exit(long error_code)
+ __attribute__ ((NORET_AND format (printf, 1, 2))) __cold;
+extern void oops_enter(void);
+extern void oops_exit(void);
+extern int oops_may_print(void);
+NORET_TYPE void do_exit(long error_code)
ATTRIB_NORET;
NORET_TYPE void complete_and_exit(struct completion *, long)
ATTRIB_NORET;
extern long simple_strtol(const char *,char **,unsigned int);
extern unsigned long long simple_strtoull(const char *,char **,unsigned int);
extern long long simple_strtoll(const char *,char **,unsigned int);
+extern int strict_strtoul(const char *, unsigned int, unsigned long *);
+extern int strict_strtol(const char *, unsigned int, long *);
+extern int strict_strtoull(const char *, unsigned int, unsigned long long *);
+extern int strict_strtoll(const char *, unsigned int, long long *);
extern int sprintf(char * buf, const char * fmt, ...)
__attribute__ ((format (printf, 2, 3)));
extern int vsprintf(char *buf, const char *, va_list)
__attribute__ ((format (printf, 3, 4)));
extern int vscnprintf(char *buf, size_t size, const char *fmt, va_list args)
__attribute__ ((format (printf, 3, 0)));
+extern char *kasprintf(gfp_t gfp, const char *fmt, ...)
+ __attribute__ ((format (printf, 2, 3)));
+extern char *kvasprintf(gfp_t gfp, const char *fmt, va_list args);
extern int sscanf(const char *, const char *, ...)
__attribute__ ((format (scanf, 2, 3)));
extern char *get_options(const char *str, int nints, int *ints);
extern unsigned long long memparse(char *ptr, char **retptr);
+extern int core_kernel_text(unsigned long addr);
extern int __kernel_text_address(unsigned long addr);
extern int kernel_text_address(unsigned long addr);
-extern int session_of_pgrp(int pgrp);
-
-extern void dump_thread(struct pt_regs *regs, struct user *dump);
+struct pid;
+extern struct pid *session_of_pgrp(struct pid *pgrp);
#ifdef CONFIG_PRINTK
asmlinkage int vprintk(const char *fmt, va_list args)
__attribute__ ((format (printf, 1, 0)));
asmlinkage int printk(const char * fmt, ...)
- __attribute__ ((format (printf, 1, 2)));
+ __attribute__ ((format (printf, 1, 2))) __cold;
+extern int log_buf_get_len(void);
+extern int log_buf_read(int idx);
+extern int log_buf_copy(char *dest, int idx, int len);
+
+extern int printk_ratelimit_jiffies;
+extern int printk_ratelimit_burst;
+extern int printk_ratelimit(void);
+extern int __printk_ratelimit(int ratelimit_jiffies, int ratelimit_burst);
+extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
+ unsigned int interval_msec);
#else
static inline int vprintk(const char *s, va_list args)
__attribute__ ((format (printf, 1, 0)));
static inline int vprintk(const char *s, va_list args) { return 0; }
static inline int printk(const char *s, ...)
__attribute__ ((format (printf, 1, 2)));
-static inline int printk(const char *s, ...) { return 0; }
+static inline int __cold printk(const char *s, ...) { return 0; }
+static inline int log_buf_get_len(void) { return 0; }
+static inline int log_buf_read(int idx) { return 0; }
+static inline int log_buf_copy(char *dest, int idx, int len) { return 0; }
+static inline int printk_ratelimit(void) { return 0; }
+static inline int __printk_ratelimit(int ratelimit_jiffies, \
+ int ratelimit_burst) { return 0; }
+static inline bool printk_timed_ratelimit(unsigned long *caller_jiffies, \
+ unsigned int interval_msec) \
+ { return false; }
#endif
-unsigned long int_sqrt(unsigned long);
-
-static inline int __attribute_pure__ long_log2(unsigned long x)
-{
- int r = 0;
- for (x >>= 1; x > 0; x >>= 1)
- r++;
- return r;
-}
+extern void __attribute__((format(printf, 1, 2)))
+ early_printk(const char *fmt, ...);
-static inline unsigned long __attribute_const__ roundup_pow_of_two(unsigned long x)
-{
- return (1UL << fls(x - 1));
-}
-
-extern int printk_ratelimit(void);
-extern int __printk_ratelimit(int ratelimit_jiffies, int ratelimit_burst);
+unsigned long int_sqrt(unsigned long);
static inline void console_silent(void)
{
}
extern void bust_spinlocks(int yes);
+extern void wake_up_klogd(void);
extern int oops_in_progress; /* If set, an oops, panic(), BUG() or die() is in progress */
-extern __deprecated_for_modules int panic_timeout;
+extern int panic_timeout;
extern int panic_on_oops;
+extern int panic_on_unrecovered_nmi;
extern int tainted;
extern const char *print_tainted(void);
extern void add_taint(unsigned);
+extern int root_mountflags;
/* Values used for system_state */
extern enum system_states {
SYSTEM_HALT,
SYSTEM_POWER_OFF,
SYSTEM_RESTART,
+ SYSTEM_SUSPEND_DISK,
} system_state;
#define TAINT_PROPRIETARY_MODULE (1<<0)
#define TAINT_FORCED_RMMOD (1<<3)
#define TAINT_MACHINE_CHECK (1<<4)
#define TAINT_BAD_PAGE (1<<5)
+#define TAINT_USER (1<<6)
+#define TAINT_DIE (1<<7)
+#define TAINT_OVERRIDDEN_ACPI_TABLE (1<<8)
-extern void dump_stack(void);
+extern void dump_stack(void) __cold;
+
+enum {
+ DUMP_PREFIX_NONE,
+ DUMP_PREFIX_ADDRESS,
+ DUMP_PREFIX_OFFSET
+};
+extern void hex_dump_to_buffer(const void *buf, size_t len,
+ int rowsize, int groupsize,
+ char *linebuf, size_t linebuflen, bool ascii);
+extern void print_hex_dump(const char *level, const char *prefix_str,
+ int prefix_type, int rowsize, int groupsize,
+ const void *buf, size_t len, bool ascii);
+extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
+ const void *buf, size_t len);
+#define hex_asc(x) "0123456789abcdef"[x]
+
+#define pr_emerg(fmt, arg...) \
+ printk(KERN_EMERG fmt, ##arg)
+#define pr_alert(fmt, arg...) \
+ printk(KERN_ALERT fmt, ##arg)
+#define pr_crit(fmt, arg...) \
+ printk(KERN_CRIT fmt, ##arg)
+#define pr_err(fmt, arg...) \
+ printk(KERN_ERR fmt, ##arg)
+#define pr_warning(fmt, arg...) \
+ printk(KERN_WARNING fmt, ##arg)
+#define pr_notice(fmt, arg...) \
+ printk(KERN_NOTICE fmt, ##arg)
+#define pr_info(fmt, arg...) \
+ printk(KERN_INFO fmt, ##arg)
#ifdef DEBUG
-#define pr_debug(fmt,arg...) \
- printk(KERN_DEBUG fmt,##arg)
+/* If you are writing a driver, please use dev_dbg instead */
+#define pr_debug(fmt, arg...) \
+ printk(KERN_DEBUG fmt, ##arg)
#else
-#define pr_debug(fmt,arg...) \
- do { } while (0)
+static inline int __attribute__ ((format (printf, 1, 2))) pr_debug(const char * fmt, ...)
+{
+ return 0;
+}
#endif
-#define pr_info(fmt,arg...) \
- printk(KERN_INFO fmt,##arg)
-
/*
* Display an IP address in readable format.
*/
((unsigned char *)&addr)[1], \
((unsigned char *)&addr)[2], \
((unsigned char *)&addr)[3]
+#define NIPQUAD_FMT "%u.%u.%u.%u"
#define NIP6(addr) \
ntohs((addr).s6_addr16[0]), \
ntohs((addr).s6_addr16[5]), \
ntohs((addr).s6_addr16[6]), \
ntohs((addr).s6_addr16[7])
+#define NIP6_FMT "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x"
+#define NIP6_SEQFMT "%04x%04x%04x%04x%04x%04x%04x%04x"
#if defined(__LITTLE_ENDIAN)
#define HIPQUAD(addr) \
*
*/
#define container_of(ptr, type, member) ({ \
- const typeof( ((type *)0)->member ) *__mptr = (ptr); \
- (type *)( (char *)__mptr - offsetof(type,member) );})
+ const typeof( ((type *)0)->member ) *__mptr = (ptr); \
+ (type *)( (char *)__mptr - offsetof(type,member) );})
/*
* Check at compile time that something is of a particular type.
(void)__tmp; \
})
+struct sysinfo;
+extern int do_sysinfo(struct sysinfo *info);
+
#endif /* __KERNEL__ */
#define SI_LOAD_SHIFT 16
/* Force a compilation error if condition is true */
#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
-#ifdef CONFIG_SYSCTL
-extern int randomize_va_space;
-#else
-#define randomize_va_space 1
-#endif
+/* Force a compilation error if condition is true, but also produce a
+ result (of value 0 and type size_t), so the expression can be used
+ e.g. in a structure initializer (or where-ever else comma expressions
+ aren't permitted). */
+#define BUILD_BUG_ON_ZERO(e) (sizeof(char[1 - 2 * !!(e)]) - 1)
/* Trap pasters of __FUNCTION__ at compile-time */
#define __FUNCTION__ (__func__)
+/* This helps us to avoid #ifdef CONFIG_NUMA */
+#ifdef CONFIG_NUMA
+#define NUMA_BUILD 1
+#else
+#define NUMA_BUILD 0
+#endif
+
#endif