diff options
Diffstat (limited to 'include/linux/kernel.h')
| -rw-r--r-- | include/linux/kernel.h | 161 |
1 files changed, 28 insertions, 133 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h index fe6efb24d151..5b46924fdff5 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -13,6 +13,7 @@ #include <linux/stdarg.h> #include <linux/align.h> +#include <linux/array_size.h> #include <linux/limits.h> #include <linux/linkage.h> #include <linux/stddef.h> @@ -20,6 +21,7 @@ #include <linux/compiler.h> #include <linux/container_of.h> #include <linux/bitops.h> +#include <linux/hex.h> #include <linux/kstrtox.h> #include <linux/log2.h> #include <linux/math.h> @@ -28,69 +30,18 @@ #include <linux/panic.h> #include <linux/printk.h> #include <linux/build_bug.h> +#include <linux/sprintf.h> #include <linux/static_call_types.h> #include <linux/instruction_pointer.h> +#include <linux/util_macros.h> +#include <linux/wordpart.h> + #include <asm/byteorder.h> #include <uapi/linux/kernel.h> #define STACK_MAGIC 0xdeadbeef -/** - * REPEAT_BYTE - repeat the value @x multiple times as an unsigned long value - * @x: value to repeat - * - * NOTE: @x is not checked for > 0xff; larger values produce odd results. - */ -#define REPEAT_BYTE(x) ((~0ul / 0xff) * (x)) - -/* generic data direction definitions */ -#define READ 0 -#define WRITE 1 - -/** - * ARRAY_SIZE - get the number of elements in array @arr - * @arr: array to be sized - */ -#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) - -#define PTR_IF(cond, ptr) ((cond) ? (ptr) : NULL) - -#define u64_to_user_ptr(x) ( \ -{ \ - typecheck(u64, (x)); \ - (void __user *)(uintptr_t)(x); \ -} \ -) - -/** - * 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)) - -/** - * lower_32_bits - return bits 0-31 of a number - * @n: the number we're accessing - */ -#define lower_32_bits(n) ((u32)((n) & 0xffffffff)) - -/** - * upper_16_bits - return bits 16-31 of a number - * @n: the number we're accessing - */ -#define upper_16_bits(n) ((u16)((n) >> 16)) - -/** - * lower_16_bits - return bits 0-15 of a number - * @n: the number we're accessing - */ -#define lower_16_bits(n) ((u16)((n) & 0xffff)) - struct completion; struct user; @@ -202,41 +153,6 @@ static inline void might_fault(void) { } void do_exit(long error_code) __noreturn; -extern int num_to_str(char *buf, int size, - unsigned long long num, unsigned int width); - -/* lib/printf utilities */ - -extern __printf(2, 3) int sprintf(char *buf, const char * fmt, ...); -extern __printf(2, 0) int vsprintf(char *buf, const char *, va_list); -extern __printf(3, 4) -int snprintf(char *buf, size_t size, const char *fmt, ...); -extern __printf(3, 0) -int vsnprintf(char *buf, size_t size, const char *fmt, va_list args); -extern __printf(3, 4) -int scnprintf(char *buf, size_t size, const char *fmt, ...); -extern __printf(3, 0) -int vscnprintf(char *buf, size_t size, const char *fmt, va_list args); -extern __printf(2, 3) __malloc -char *kasprintf(gfp_t gfp, const char *fmt, ...); -extern __printf(2, 0) __malloc -char *kvasprintf(gfp_t gfp, const char *fmt, va_list args); -extern __printf(2, 0) -const char *kvasprintf_const(gfp_t gfp, const char *fmt, va_list args); - -extern __scanf(2, 3) -int sscanf(const char *, const char *, ...); -extern __scanf(2, 0) -int vsscanf(const char *, const char *, va_list); - -extern int no_hash_pointers_enable(char *str); - -extern int get_option(char **str, int *pint); -extern char *get_options(const char *str, int nints, int *ints); -extern unsigned long long memparse(const char *ptr, char **retptr); -extern bool parse_option_str(const char *str, const char *option); -extern char *next_arg(char *args, char **param, char **val); - extern int core_kernel_text(unsigned long addr); extern int __kernel_text_address(unsigned long addr); extern int kernel_text_address(unsigned long addr); @@ -248,11 +164,23 @@ extern int root_mountflags; extern bool early_boot_irqs_disabled; -/* - * Values used for system_state. Ordering of the states must not be changed +/** + * enum system_states - Values used for system_state. + * + * @SYSTEM_BOOTING: %0, no init needed + * @SYSTEM_SCHEDULING: system is ready for scheduling; OK to use RCU + * @SYSTEM_FREEING_INITMEM: system is freeing all of initmem; almost running + * @SYSTEM_RUNNING: system is up and running + * @SYSTEM_HALT: system entered clean system halt state + * @SYSTEM_POWER_OFF: system entered shutdown/clean power off state + * @SYSTEM_RESTART: system entered emergency power off or normal restart + * @SYSTEM_SUSPEND: system entered suspend or hibernate state + * + * Note: + * Ordering of the states must not be changed * as code checks for <, <=, >, >= STATE. */ -extern enum system_states { +enum system_states { SYSTEM_BOOTING, SYSTEM_SCHEDULING, SYSTEM_FREEING_INITMEM, @@ -261,35 +189,8 @@ extern enum system_states { SYSTEM_POWER_OFF, SYSTEM_RESTART, SYSTEM_SUSPEND, -} system_state; - -extern const char hex_asc[]; -#define hex_asc_lo(x) hex_asc[((x) & 0x0f)] -#define hex_asc_hi(x) hex_asc[((x) & 0xf0) >> 4] - -static inline char *hex_byte_pack(char *buf, u8 byte) -{ - *buf++ = hex_asc_hi(byte); - *buf++ = hex_asc_lo(byte); - return buf; -} - -extern const char hex_asc_upper[]; -#define hex_asc_upper_lo(x) hex_asc_upper[((x) & 0x0f)] -#define hex_asc_upper_hi(x) hex_asc_upper[((x) & 0xf0) >> 4] - -static inline char *hex_byte_pack_upper(char *buf, u8 byte) -{ - *buf++ = hex_asc_upper_hi(byte); - *buf++ = hex_asc_upper_lo(byte); - return buf; -} - -extern int hex_to_bin(unsigned char ch); -extern int __must_check hex2bin(u8 *dst, const char *src, size_t count); -extern char *bin2hex(char *dst, const void *src, size_t count); - -bool mac_pton(const char *s, u8 *mac); +}; +extern enum system_states system_state; /* * General tracing related utility functions - trace_printk(), @@ -297,7 +198,7 @@ bool mac_pton(const char *s, u8 *mac); * * Use tracing_on/tracing_off when you want to quickly turn on or off * tracing. It simply enables or disables the recording of the trace events. - * This also corresponds to the user space /sys/kernel/debug/tracing/tracing_on + * This also corresponds to the user space /sys/kernel/tracing/tracing_on * file, which gives a means for the kernel and userspace to interact. * Place a tracing_off() in the kernel where you want tracing to end. * From user space, examine the trace, and then echo 1 > tracing_on @@ -315,6 +216,7 @@ enum ftrace_dump_mode { DUMP_NONE, DUMP_ALL, DUMP_ORIG, + DUMP_PARAM, }; #ifdef CONFIG_TRACING @@ -484,16 +386,9 @@ ftrace_vprintk(const char *fmt, va_list ap) static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { } #endif /* CONFIG_TRACING */ -/* This counts to 12. Any more, it will return 13th argument. */ -#define __COUNT_ARGS(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _n, X...) _n -#define COUNT_ARGS(X...) __COUNT_ARGS(, ##X, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0) - -#define __CONCAT(a, b) a ## b -#define CONCATENATE(a, b) __CONCAT(a, b) - -/* Rebuild everything on CONFIG_FTRACE_MCOUNT_RECORD */ -#ifdef CONFIG_FTRACE_MCOUNT_RECORD -# define REBUILD_DUE_TO_FTRACE_MCOUNT_RECORD +/* Rebuild everything on CONFIG_DYNAMIC_FTRACE */ +#ifdef CONFIG_DYNAMIC_FTRACE +# define REBUILD_DUE_TO_DYNAMIC_FTRACE #endif /* Permissions on a sysfs file: you didn't miss the 0 prefix did you? */ |