1 files changed, 89 insertions, 0 deletions
diff --git a/Makefile.d/endian_test.h b/Makefile.d/endian_test.h
new file mode 100644
index 000000000..36658b318
--- /dev/null
+++ b/Makefile.d/endian_test.h
@@ -0,0 +1,89 @@
+/*
+ * This file is part of the flashrom project.
+ *
+ * Copyright (C) 2011 Carl-Daniel Hailfinger
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+/*
+ * This file determinate the target endian. It should only be used my the Makefile
+ */
+
+#if defined (__i386__) || defined (__x86_64__) || defined(__amd64__)
+/* All x86 is little-endian. */
+#define __FLASHROM_LITTLE_ENDIAN__ 1
+#elif defined (__mips) || defined (__mips__) || defined (__MIPS__) || defined (mips)
+/* MIPS can be either endian. */
+#if defined (__MIPSEL) || defined (__MIPSEL__) || defined (_MIPSEL) || defined (MIPSEL)
+#define __FLASHROM_LITTLE_ENDIAN__ 1
+#elif defined (__MIPSEB) || defined (__MIPSEB__) || defined (_MIPSEB) || defined (MIPSEB)
+#define __FLASHROM_BIG_ENDIAN__ 1
+#endif
+#elif defined(__powerpc) || defined(__powerpc__) || defined(__powerpc64__) || defined(__POWERPC__) || \
+      defined(__ppc__) || defined(__ppc64__) || defined(_M_PPC) || defined(_ARCH_PPC) || \
+      defined(_ARCH_PPC64) || defined(__ppc)
+/* PowerPC can be either endian. */
+#if defined (_BIG_ENDIAN) || defined (__BIG_ENDIAN__)
+#define __FLASHROM_BIG_ENDIAN__ 1
+#elif defined (_LITTLE_ENDIAN) || defined (__LITTLE_ENDIAN__)
+#define __FLASHROM_LITTLE_ENDIAN__ 1
+#endif
+#elif defined(__arm__) || defined(__TARGET_ARCH_ARM) || defined(_ARM) || defined(_M_ARM) || defined(__arm) || \
+      defined(__aarch64__)
+/* ARM can be either endian. */
+#if defined (__ARMEB__) || defined (__BIG_ENDIAN__)
+#define __FLASHROM_BIG_ENDIAN__ 1
+#elif defined (__ARMEL__) || defined (__LITTLE_ENDIAN__)
+#define __FLASHROM_LITTLE_ENDIAN__ 1
+#endif
+#elif defined (__sparc__) || defined (__sparc)
+/* SPARC is big endian in general (but allows to access data in little endian too). */
+#define __FLASHROM_BIG_ENDIAN__ 1
+#elif defined(__arc__)
+#if defined(__BIG_ENDIAN__)
+#define __FLASHROM_BIG_ENDIAN__ 1
+#else
+#define __FLASHROM_LITTLE_ENDIAN__ 1
+#endif
+#endif
+
+#if !defined (__FLASHROM_BIG_ENDIAN__) && !defined (__FLASHROM_LITTLE_ENDIAN__)
+/* If architecture-specific approaches fail try generic variants. First: BSD (works about everywhere). */
+#if !(defined(_WIN32) || defined(_WIN64) || defined(__WIN32__) || defined(__WINDOWS__))
+#include <sys/param.h>
+#if defined (__BYTE_ORDER)
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define __FLASHROM_LITTLE_ENDIAN__
+#elif __BYTE_ORDER == __BIG_ENDIAN
+#define __FLASHROM_BIG_ENDIAN__
+#else
+#error Unknown byte order!
+#endif
+#endif /* defined __BYTE_ORDER */
+#endif /* !IS_WINDOWS */
+#if !defined (__FLASHROM_BIG_ENDIAN__) && !defined (__FLASHROM_LITTLE_ENDIAN__)
+/* Nonstandard libc-specific macros for determining endianness. */
+/* musl provides an endian.h as well... but it can not be detected from within C. */
+#if defined(__GLIBC__)
+#include <endian.h>
+#if BYTE_ORDER == LITTLE_ENDIAN
+#define __FLASHROM_LITTLE_ENDIAN__ 1
+#elif BYTE_ORDER == BIG_ENDIAN
+#define __FLASHROM_BIG_ENDIAN__ 1
+#endif
+#endif
+#endif
+#endif
+#if defined(__FLASHROM_LITTLE_ENDIAN__)
+"little"
+#else
+"big"
+#endif