/*
- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* Please see the License for the specific language governing rights and
* limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*-
* Copyright (c) 1992, 1993
*
* @(#)libkern.h 8.1 (Berkeley) 6/10/93
*/
+/*
+ * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce
+ * support for mandatory and extensible security protections. This notice
+ * is included in support of clause 2.2 (b) of the Apple Public License,
+ * Version 2.0.
+ */
#ifndef _LIBKERN_LIBKERN_H_
#define _LIBKERN_LIBKERN_H_
#include <sys/appleapiopts.h>
#include <stdint.h>
+#include <stdarg.h> /* for platform-specific va_list */
#include <string.h>
#include <sys/cdefs.h>
#include <sys/types.h>
{
return (a < b ? a : b);
}
-static inline u_long
-ulmax(u_long a, u_long b)
+static inline u_int32_t
+ulmax(u_int32_t a, u_int32_t b)
{
return (a > b ? a : b);
}
-static inline u_long
-ulmin(u_long a, u_long b)
+static inline u_int32_t
+ulmin(u_int32_t a, u_int32_t b)
{
return (a < b ? a : b);
}
+
+
/* Prototypes for non-quad routines. */
extern int ffs(int);
extern int locc(int, char *, u_int);
-extern u_long random(void);
+extern u_int32_t random(void);
extern char *rindex(const char *, int);
extern int scanc(u_int, u_char *, const u_char *, int);
extern int skpc(int, int, char *);
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 **stringp, const char *delim);
+
+int snprintf(char *, size_t, const char *, ...) __printflike(3,4);
-int snprintf(char *, size_t, const char *, ...);
-int sprintf(char *bufp, const char *, ...);
-int sscanf(const char *, char const *, ...);
-void printf(const char *, ...);
+/* sprintf() is being deprecated. Please use snprintf() instead. */
+int sprintf(char *bufp, const char *, ...) __deprecated;
+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
uint32_t crc32(uint32_t crc, const void *bufp, size_t len);
int copyin(const user_addr_t uaddr, void *kaddr, size_t len);
int copyout(const void *kaddr, user_addr_t udaddr, size_t len);
-int vsscanf(const char *, char const *, __darwin_va_list);
-extern int vsnprintf(char *, size_t, const char *, __darwin_va_list);
-extern int vsprintf(char *bufp, const char *, __darwin_va_list);
+int vsscanf(const char *, char const *, va_list);
+
+extern int vprintf(const char *, va_list);
+extern int vsnprintf(char *, size_t, const char *, va_list);
+/* vsprintf() is being deprecated. Please use vsnprintf() instead. */
+extern int vsprintf(char *bufp, const char *, va_list) __deprecated;
+
+#ifdef KERNEL_PRIVATE
+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);
+
+/*
+ * assembly versions of clz... ideally we would just call
+ * __builtin_clz(num), unfortunately this one is ill defined
+ * by gcc for num=0
+ */
+static __inline__ unsigned int
+clz(unsigned int num)
+{
+#if __ppc__
+ unsigned int result;
+ __asm__ volatile(
+ "cntlzw %0, %1"
+ : "=r" (result)
+ : "r" (num)
+ );
+ return result;
+
+#elif __i386__
+ unsigned int result;
+ __asm__ volatile(
+ "bsrl %1, %0\n\t"
+ "cmovel %2, %0"
+ : "=r" (result)
+ : "rm" (num), "r" (63)
+ );
+ return 31 ^ result;
+
+#elif __arm__ && !__thumb__ && defined(_ARM_ARCH_5)
+ unsigned int result;
+ __asm__ volatile(
+ "clz %0, %1"
+ : "=r" (result)
+ : "r" (num)
+ );
+
+ return result;
+#else
+ return num?__builtin_clz(num):__builtin_clz(0);
+#endif
+}
+
+
__END_DECLS
#endif /* _LIBKERN_LIBKERN_H_ */
projects / apple / xnu.git / blobdiff