OS Detection

Implements automatic OS and architecture detection. This code has
been taken from the Qt repositories for Qt 5.4 (LGPL) and slightly
modified into the SubsurfaceSysInfo class.

Signed-off-by: Joseph W. Joshua <joejoshw@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 293 insertions, 0 deletions

diff --git a/subsurfacesysinfo.h b/subsurfacesysinfo.h
new file mode 100644
index 000000000..8018ddb31
--- /dev/null
+++ b/subsurfacesysinfo.h
@@ -0,0 +1,293 @@
+#ifndef SUBSURFACESYSINFO_H
+#define SUBSURFACESYSINFO_H
+
+#include <QtGlobal>
+
+#if defined(__arm__) || defined(__TARGET_ARCH_ARM) || defined(_M_ARM) || defined(__arm64__)
+#	define Q_PROCESSOR_ARM
+#	if defined(__arm64__)
+#		define Q_PROCESSOR_ARM_64
+#	else
+#		define Q_PROCESSOR_ARM_32
+#	endif
+#	if defined(__ARM64_ARCH_8__)
+#		define Q_PROCESSOR_ARM_V8
+#		define Q_PROCESSOR_ARM_V7
+#		define Q_PROCESSOR_ARM_V6
+#		define Q_PROCESSOR_ARM_V5
+#	elif defined(__ARM_ARCH_7__) \
+	|| defined(__ARM_ARCH_7A__) \
+	|| defined(__ARM_ARCH_7R__) \
+	|| defined(__ARM_ARCH_7M__) \
+	|| defined(__ARM_ARCH_7S__) \
+	|| defined(_ARM_ARCH_7) \
+	|| (defined(__TARGET_ARCH_ARM) && __TARGET_ARCH_ARM-0 >= 7) \
+	|| (defined(_M_ARM) && _M_ARM-0 >= 7)
+#		define Q_PROCESSOR_ARM_V7
+#		define Q_PROCESSOR_ARM_V6
+#		define Q_PROCESSOR_ARM_V5
+#	elif defined(__ARM_ARCH_6__) \
+	|| defined(__ARM_ARCH_6J__) \
+	|| defined(__ARM_ARCH_6T2__) \
+	|| defined(__ARM_ARCH_6Z__) \
+	|| defined(__ARM_ARCH_6K__) \
+	|| defined(__ARM_ARCH_6ZK__) \
+	|| defined(__ARM_ARCH_6M__) \
+	|| (defined(__TARGET_ARCH_ARM) && __TARGET_ARCH_ARM-0 >= 6) \
+	|| (defined(_M_ARM) && _M_ARM-0 >= 6)
+#		define Q_PROCESSOR_ARM_V6
+#		define Q_PROCESSOR_ARM_V5
+#	elif defined(__ARM_ARCH_5TEJ__) \
+	|| defined(__ARM_ARCH_5TE__) \
+	|| (defined(__TARGET_ARCH_ARM) && __TARGET_ARCH_ARM-0 >= 5) \
+	|| (defined(_M_ARM) && _M_ARM-0 >= 5)
+#		define Q_PROCESSOR_ARM_V5
+#	endif
+#	if defined(__ARMEL__)
+#		define Q_BYTE_ORDER Q_LITTLE_ENDIAN
+#	elif defined(__ARMEB__)
+#		define Q_BYTE_ORDER Q_BIG_ENDIAN
+#	else
+// Q_BYTE_ORDER not defined, use endianness auto-detection
+#endif
+
+
+#elif defined(__i386) || defined(__i386__) || defined(_M_IX86)
+#	define Q_PROCESSOR_X86_32
+#	define Q_BYTE_ORDER Q_LITTLE_ENDIAN
+
+#	if defined(_M_IX86)
+#		define Q_PROCESSOR_X86     (_M_IX86/100)
+#	elif defined(__i686__) || defined(__athlon__) || defined(__SSE__)
+#		define Q_PROCESSOR_X86     6
+#	elif defined(__i586__) || defined(__k6__)
+#		define Q_PROCESSOR_X86     5
+#	elif defined(__i486__)
+#		define Q_PROCESSOR_X86     4
+#	else
+#		define Q_PROCESSOR_X86     3
+#endif
+
+#elif defined(__x86_64) || defined(__x86_64__) || defined(__amd64) || defined(_M_X64)
+#	define Q_PROCESSOR_X86       6
+#	define Q_PROCESSOR_X86_64
+#	define Q_BYTE_ORDER Q_LITTLE_ENDIAN
+#	define Q_PROCESSOR_WORDSIZE   8
+
+#elif defined(__ia64) || defined(__ia64__) || defined(_M_IA64)
+#	define Q_PROCESSOR_IA64
+#	define Q_PROCESSOR_WORDSIZE   8
+
+#elif defined(__mips) || defined(__mips__) || defined(_M_MRX000)
+#	define Q_PROCESSOR_MIPS
+#	if defined(_MIPS_ARCH_MIPS1) || (defined(__mips) && __mips - 0 >= 1)
+#		define Q_PROCESSOR_MIPS_I
+#	endif
+#	if defined(_MIPS_ARCH_MIPS2) || (defined(__mips) && __mips - 0 >= 2)
+#		define Q_PROCESSOR_MIPS_II
+#	endif
+#	if defined(_MIPS_ARCH_MIPS32) || defined(__mips32)
+#		define Q_PROCESSOR_MIPS_32
+#	endif
+#	if defined(_MIPS_ARCH_MIPS3) || (defined(__mips) && __mips - 0 >= 3)
+#		define Q_PROCESSOR_MIPS_III
+#	endif
+#	if defined(_MIPS_ARCH_MIPS4) || (defined(__mips) && __mips - 0 >= 4)
+#		define Q_PROCESSOR_MIPS_IV
+#	endif
+#	if defined(_MIPS_ARCH_MIPS5) || (defined(__mips) && __mips - 0 >= 5)
+#		define Q_PROCESSOR_MIPS_V
+#	endif
+#	if defined(_MIPS_ARCH_MIPS64) || defined(__mips64)
+#		define Q_PROCESSOR_MIPS_64
+#	endif
+#	if defined(__MIPSEL__)
+#		define Q_BYTE_ORDER Q_LITTLE_ENDIAN
+#	elif defined(__MIPSEB__)
+#		define Q_BYTE_ORDER Q_BIG_ENDIAN
+#	else
+// Q_BYTE_ORDER not defined, use endianness auto-detection
+#endif
+
+
+#elif defined(__ppc__) || defined(__ppc) || defined(__powerpc__) \
+	|| defined(_ARCH_COM) || defined(_ARCH_PWR) || defined(_ARCH_PPC)  \
+	|| defined(_M_MPPC) || defined(_M_PPC)
+#	define Q_PROCESSOR_POWER
+#	if defined(__ppc64__) || defined(__powerpc64__) || defined(__64BIT__)
+#		define Q_PROCESSOR_POWER_64
+#	else
+#		define Q_PROCESSOR_POWER_32
+#	endif
+
+#elif defined(__s390__)
+#	define Q_PROCESSOR_S390
+#	if defined(__s390x__)
+#		define Q_PROCESSOR_S390_X
+#	endif
+#	define Q_BYTE_ORDER Q_BIG_ENDIAN
+
+
+#endif
+
+// Some processors support either endian format, try to detect which we are using.
+#if !defined(Q_BYTE_ORDER)
+#	if defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == Q_BIG_ENDIAN || __BYTE_ORDER__ == Q_LITTLE_ENDIAN)
+// Reuse __BYTE_ORDER__ as-is, since our Q_*_ENDIAN #defines match the preprocessor defaults
+#		define Q_BYTE_ORDER __BYTE_ORDER__
+#	elif defined(__BIG_ENDIAN__) || defined(_big_endian__) || defined(_BIG_ENDIAN)
+#		define Q_BYTE_ORDER Q_BIG_ENDIAN
+#	elif defined(__LITTLE_ENDIAN__) || defined(_little_endian__) || defined(_LITTLE_ENDIAN) \
+	|| defined(_WIN32_WCE) || defined(WINAPI_FAMILY) // Windows CE is always little-endian according to MSDN.
+#		define Q_BYTE_ORDER Q_LITTLE_ENDIAN
+#	else
+#		error "Unable to determine byte order!"
+#	endif
+#endif
+
+#ifndef Q_PROCESSOR_WORDSIZE
+#	ifdef __SIZEOF_POINTER__
+/* GCC & friends define this */
+#		define Q_PROCESSOR_WORDSIZE        __SIZEOF_POINTER__
+#	elif defined(_LP64) || defined(__LP64__) || defined(WIN64) || defined(_WIN64)
+#		define Q_PROCESSOR_WORDSIZE        8
+#	else
+#		define Q_PROCESSOR_WORDSIZE        QT_POINTER_SIZE
+#	endif
+#endif
+
+class QString;
+class SubsurfaceSysInfo {
+public:
+	enum Sizes {
+		WordSize = (sizeof(void *)<<3)
+	};
+
+#ifndef QStringLiteral
+	// no lambdas, not GCC, or GCC in C++98 mode with 4-byte wchar_t
+	// fallback, return a temporary QString
+	// source code is assumed to be encoded in UTF-8
+
+# define QStringLiteral(str) QString::fromUtf8("" str "", sizeof(str) - 1)
+#endif
+
+
+#if defined(QT_BUILD_QMAKE)
+	enum Endian {
+		BigEndian,
+		LittleEndian
+	};
+	/* needed to bootstrap qmake */
+	static const int ByteOrder;
+#elif defined(Q_BYTE_ORDER)
+	enum Endian {
+		BigEndian,
+		LittleEndian
+
+#  ifdef Q_QDOC
+		, ByteOrder = <platform-dependent>
+#  elif Q_BYTE_ORDER == Q_BIG_ENDIAN
+		, ByteOrder = BigEndian
+#  elif Q_BYTE_ORDER == Q_LITTLE_ENDIAN
+		, ByteOrder = LittleEndian
+#  else
+#    error "Undefined byte order"
+#  endif
+	};
+#endif
+#if defined(Q_OS_WIN) || defined(Q_OS_CYGWIN)
+	enum WinVersion {
+		WV_32s      = 0x0001,
+		WV_95       = 0x0002,
+		WV_98       = 0x0003,
+		WV_Me       = 0x0004,
+		WV_DOS_based= 0x000f,
+
+		/* codenames */
+		WV_NT       = 0x0010,
+		WV_2000     = 0x0020,
+		WV_XP       = 0x0030,
+		WV_2003     = 0x0040,
+		WV_VISTA    = 0x0080,
+		WV_WINDOWS7 = 0x0090,
+		WV_WINDOWS8 = 0x00a0,
+		WV_WINDOWS8_1 = 0x00b0,
+		WV_NT_based = 0x00f0,
+
+		/* version numbers */
+		WV_4_0      = WV_NT,
+		WV_5_0      = WV_2000,
+		WV_5_1      = WV_XP,
+		WV_5_2      = WV_2003,
+		WV_6_0      = WV_VISTA,
+		WV_6_1      = WV_WINDOWS7,
+		WV_6_2      = WV_WINDOWS8,
+		WV_6_3      = WV_WINDOWS8_1,
+
+		WV_CE       = 0x0100,
+		WV_CENET    = 0x0200,
+		WV_CE_5     = 0x0300,
+		WV_CE_6     = 0x0400,
+		WV_CE_based = 0x0f00
+	};
+	static const WinVersion WindowsVersion;
+	static WinVersion windowsVersion();
+
+#endif
+#ifdef Q_OS_MAC
+#  define Q_MV_IOS(major, minor) (QSysInfo::MV_IOS | major << 4 | minor)
+	enum MacVersion {
+		MV_Unknown = 0x0000,
+
+		/* version */
+		MV_9 = 0x0001,
+		MV_10_0 = 0x0002,
+		MV_10_1 = 0x0003,
+		MV_10_2 = 0x0004,
+		MV_10_3 = 0x0005,
+		MV_10_4 = 0x0006,
+		MV_10_5 = 0x0007,
+		MV_10_6 = 0x0008,
+		MV_10_7 = 0x0009,
+		MV_10_8 = 0x000A,
+		MV_10_9 = 0x000B,
+		MV_10_10 = 0x000C,
+
+		/* codenames */
+		MV_CHEETAH = MV_10_0,
+		MV_PUMA = MV_10_1,
+		MV_JAGUAR = MV_10_2,
+		MV_PANTHER = MV_10_3,
+		MV_TIGER = MV_10_4,
+		MV_LEOPARD = MV_10_5,
+		MV_SNOWLEOPARD = MV_10_6,
+		MV_LION = MV_10_7,
+		MV_MOUNTAINLION = MV_10_8,
+		MV_MAVERICKS = MV_10_9,
+		MV_YOSEMITE = MV_10_10,
+
+		/* iOS */
+		MV_IOS     = 1 << 8,
+		MV_IOS_4_3 = Q_MV_IOS(4, 3),
+		MV_IOS_5_0 = Q_MV_IOS(5, 0),
+		MV_IOS_5_1 = Q_MV_IOS(5, 1),
+		MV_IOS_6_0 = Q_MV_IOS(6, 0),
+		MV_IOS_6_1 = Q_MV_IOS(6, 1),
+		MV_IOS_7_0 = Q_MV_IOS(7, 0),
+		MV_IOS_7_1 = Q_MV_IOS(7, 1),
+		MV_IOS_8_0 = Q_MV_IOS(8, 0)
+	};
+	static const MacVersion MacintoshVersion;
+	static MacVersion macVersion();
+#endif
+	static QString unknownText();
+	static QString cpuArchitecture();
+	static QString fullCpuArchitecture();
+	static QString osType();
+	static QString osKernelVersion();
+	static QString osVersion();
+	static QString prettyOsName();
+};
+
+
+#endif // SUBSURFACESYSINFO_H