#ifndef _LIBKERN_LIBKERN_H_
#define _LIBKERN_LIBKERN_H_
#include <sys/appleapiopts.h>
#include <stdint.h>
#include <stdarg.h>
#include <string.h>
#include <machine/limits.h>
#include <sys/cdefs.h>
#include <sys/types.h>
#include <mach/vm_param.h>
#include <libkern/crc.h>
#include <libkern/copyio.h>
#if defined(__arm__) || defined(__arm64__)
#include <arm/arch.h>
#endif
#ifdef __APPLE_API_OBSOLETE
extern u_char const bcd2bin_data[];
extern u_char const bin2bcd_data[];
#define bcd2bin(bcd) (bcd2bin_data[bcd])
#define bin2bcd(bin) (bin2bcd_data[bin])
#endif
#ifdef __APPLE_API_PRIVATE
extern char const hex2ascii_data[];
#define hex2ascii(hex) (hex2ascii_data[hex])
#endif
__BEGIN_DECLS
static inline int
imax(int a, int b)
{
return a > b ? a : b;
}
static inline int
imin(int a, int b)
{
return a < b ? a : b;
}
static inline long
lmax(long a, long b)
{
return a > b ? a : b;
}
static inline long
lmin(long a, long b)
{
return a < b ? a : b;
}
static inline u_int
max(u_int a, u_int b)
{
return a > b ? a : b;
}
static inline u_int
min(u_int a, u_int b)
{
return a < b ? a : b;
}
static inline u_int32_t
ulmax(u_int32_t a, u_int32_t b)
{
return a > b ? a : b;
}
static inline u_int32_t
ulmin(u_int32_t a, u_int32_t b)
{
return a < b ? a : b;
}
extern int ffs(unsigned int);
extern int ffsll(unsigned long long);
extern int fls(unsigned int);
extern int flsll(unsigned long long);
extern u_int32_t random(void);
extern int scanc(u_int, u_char *, const u_char *, int);
extern int skpc(int, int, char *);
extern long strtol(const char*, char **, int);
extern u_long strtoul(const char *, char **, int);
extern quad_t strtoq(const char *, char **, int);
extern u_quad_t strtouq(const char *, char **, int);
extern char *strsep(char **, const char *);
extern void *memchr(const void *, int, size_t);
extern void url_decode(char *str);
int snprintf(char *, size_t, const char *, ...) __printflike(3, 4);
int scnprintf(char *, size_t, const char *, ...) __printflike(3, 4);
int sprintf(char *bufp, const char *, ...) __deprecated __printflike(2, 3);
int sscanf(const char *, char const *, ...) __scanflike(2, 3);
int printf(const char *, ...) __printflike(1, 2);
#if KERNEL_PRIVATE
int _consume_printf_args(int, ...);
#endif
#if CONFIG_NO_PRINTF_STRINGS
#if KERNEL_PRIVATE
#define printf(x, ...) _consume_printf_args( 0, ## __VA_ARGS__ )
#else
#define printf(x, ...) do {} while (0)
#endif
#endif
uint16_t crc16(uint16_t crc, const void *bufp, size_t len);
uint32_t crc32(uint32_t crc, const void *bufp, size_t len);
#if XNU_KERNEL_PRIVATE
#if KASAN
uint16_t __nosan_crc16(uint16_t crc, const void *bufp, size_t len);
#else
static inline uint16_t
__nosan_crc16(uint16_t crc, const void *bufp, size_t len)
{
return crc16(crc, bufp, len);
}
#endif
#endif
int copystr(const void *kfaddr, void *kdaddr, size_t len, size_t *done);
int copyinstr(const user_addr_t uaddr, void *kaddr, size_t len, size_t *done) OS_WARN_RESULT;
int copyoutstr(const void *kaddr, user_addr_t udaddr, size_t len, size_t *done);
#if XNU_KERNEL_PRIVATE
int copyin_atomic32(const user_addr_t user_addr, uint32_t *u32);
int copyin_atomic32_wait_if_equals(const user_addr_t user_addr, uint32_t u32);
int copyin_atomic64(const user_addr_t user_addr, uint64_t *u64);
int copyout_atomic32(uint32_t u32, user_addr_t user_addr);
int copyout_atomic64(uint64_t u64, user_addr_t user_addr);
int copyoutstr_prevalidate(const void *kaddr, user_addr_t uaddr, size_t len);
#endif
int vsscanf(const char *, char const *, va_list);
extern int vprintf(const char *, va_list) __printflike(1, 0);
extern int vsnprintf(char *, size_t, const char *, va_list) __printflike(3, 0);
extern int vscnprintf(char *, size_t, const char *, va_list) __printflike(3, 0);
#if XNU_KERNEL_PRIVATE
extern int vprintf_log_locked(const char *, va_list, bool addcr) __printflike(1, 0);
extern void osobject_retain(void * object);
extern void osobject_release(void * object);
#endif
extern int vsprintf(char *bufp, const char *, va_list) __deprecated __printflike(2, 0);
#ifdef KERNEL_PRIVATE
#ifdef __arm__
void flush_inner_dcaches(void);
void clean_inner_dcaches(void);
#endif
extern void invalidate_icache(vm_offset_t, unsigned, int);
extern void flush_dcache(vm_offset_t, unsigned, int);
#else
extern void invalidate_icache(vm_offset_t, unsigned, int);
extern void flush_dcache(vm_offset_t, unsigned, int);
#endif
extern void invalidate_icache64(addr64_t, unsigned, int);
extern void flush_dcache64(addr64_t, unsigned, int);
static inline int
clz(unsigned int num)
{
#if (__arm__ || __arm64__)
return __builtin_clz(num);
#else
return num ? __builtin_clz(num) : sizeof(num) * CHAR_BIT;
#endif
}
#if XNU_KERNEL_PRIVATE
#define UNSUPPORTED_API(funcname, ...) \
_Pragma("clang diagnostic push") \
_Pragma("clang diagnostic ignored \"-Wunused-parameter\"") \
funcname(__VA_ARGS__) { panic(__func__ ": unsupported API\n"); } \
_Pragma("clang diagnostic pop")
#endif
__END_DECLS
#endif