1 files changed, 44 insertions, 16 deletions

diff --git a/core/lib/libfdt/include/libfdt_env.h b/core/lib/libfdt/include/libfdt_env.h
index b0e44457..3b108522 100644
--- a/core/lib/libfdt/include/libfdt_env.h
+++ b/core/lib/libfdt/include/libfdt_env.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: (BSD-2-Clause OR GPL-2.0+) */
-#ifndef _LIBFDT_ENV_H
-#define _LIBFDT_ENV_H
+#ifndef LIBFDT_ENV_H
+#define LIBFDT_ENV_H
 /*
  * libfdt - Flat Device Tree manipulation
  * Copyright (C) 2006 David Gibson, IBM Corporation.
@@ -55,19 +55,20 @@
 
 #include <stddef.h>
 #include <stdint.h>
+#include <stdlib.h>
 #include <string.h>
 
 #ifdef __CHECKER__
-#define __force __attribute__((force))
-#define __bitwise __attribute__((bitwise))
+#define FDT_FORCE __attribute__((force))
+#define FDT_BITWISE __attribute__((bitwise))
 #else
-#define __force
-#define __bitwise
+#define FDT_FORCE
+#define FDT_BITWISE
 #endif
 
-typedef uint16_t __bitwise fdt16_t;
-typedef uint32_t __bitwise fdt32_t;
-typedef uint64_t __bitwise fdt64_t;
+typedef uint16_t FDT_BITWISE fdt16_t;
+typedef uint32_t FDT_BITWISE fdt32_t;
+typedef uint64_t FDT_BITWISE fdt64_t;
 
 #define EXTRACT_BYTE(x, n)	((unsigned long long)((uint8_t *)&x)[n])
 #define CPU_TO_FDT16(x) ((EXTRACT_BYTE(x, 0) << 8) | EXTRACT_BYTE(x, 1))
@@ -80,33 +81,60 @@ typedef uint64_t __bitwise fdt64_t;
 
 static inline uint16_t fdt16_to_cpu(fdt16_t x)
 {
-	return (__force uint16_t)CPU_TO_FDT16(x);
+	return (FDT_FORCE uint16_t)CPU_TO_FDT16(x);
 }
 static inline fdt16_t cpu_to_fdt16(uint16_t x)
 {
-	return (__force fdt16_t)CPU_TO_FDT16(x);
+	return (FDT_FORCE fdt16_t)CPU_TO_FDT16(x);
 }
 
 static inline uint32_t fdt32_to_cpu(fdt32_t x)
 {
-	return (__force uint32_t)CPU_TO_FDT32(x);
+	return (FDT_FORCE uint32_t)CPU_TO_FDT32(x);
 }
 static inline fdt32_t cpu_to_fdt32(uint32_t x)
 {
-	return (__force fdt32_t)CPU_TO_FDT32(x);
+	return (FDT_FORCE fdt32_t)CPU_TO_FDT32(x);
 }
 
 static inline uint64_t fdt64_to_cpu(fdt64_t x)
 {
-	return (__force uint64_t)CPU_TO_FDT64(x);
+	return (FDT_FORCE uint64_t)CPU_TO_FDT64(x);
 }
 static inline fdt64_t cpu_to_fdt64(uint64_t x)
 {
-	return (__force fdt64_t)CPU_TO_FDT64(x);
+	return (FDT_FORCE fdt64_t)CPU_TO_FDT64(x);
 }
 #undef CPU_TO_FDT64
 #undef CPU_TO_FDT32
 #undef CPU_TO_FDT16
 #undef EXTRACT_BYTE
 
-#endif /* _LIBFDT_ENV_H */
+#ifdef __APPLE__
+#include <AvailabilityMacros.h>
+
+/* strnlen() is not available on Mac OS < 10.7 */
+# if !defined(MAC_OS_X_VERSION_10_7) || (MAC_OS_X_VERSION_MAX_ALLOWED < \
+                                         MAC_OS_X_VERSION_10_7)
+
+#define strnlen fdt_strnlen
+
+/*
+ * fdt_strnlen: returns the length of a string or max_count - which ever is
+ * smallest.
+ * Input 1 string: the string whose size is to be determined
+ * Input 2 max_count: the maximum value returned by this function
+ * Output: length of the string or max_count (the smallest of the two)
+ */
+static inline size_t fdt_strnlen(const char *string, size_t max_count)
+{
+    const char *p = memchr(string, 0, max_count);
+    return p ? p - string : max_count;
+}
+
+#endif /* !defined(MAC_OS_X_VERSION_10_7) || (MAC_OS_X_VERSION_MAX_ALLOWED <
+          MAC_OS_X_VERSION_10_7) */
+
+#endif /* __APPLE__ */
+
+#endif /* LIBFDT_ENV_H */