Merge branch 'master' into applecl

libraries/asmjit/base/cpuinfo.cpp

+// [AsmJit]
+// Complete x86/x64 JIT and Remote Assembler for C++.
+//
+// [License]
+// Zlib - See LICENSE.md file in the package.
+
+// [Export]
+#define ASMJIT_EXPORTS
+
+// [Dependencies - AsmJit]
+#include "../base/cpuinfo.h"
+
+#if defined(ASMJIT_ARCH_X86) || defined(ASMJIT_ARCH_X64)
+#include "../x86/x86cpuinfo.h"
+#else
+// ?
+#endif
+
+// [Dependencies - Posix]
+#if defined(ASMJIT_OS_POSIX)
+# include <errno.h>
+# include <sys/statvfs.h>
+# include <sys/utsname.h>
+# include <unistd.h>
+#endif // ASMJIT_OS_POSIX
+
+// [Api-Begin]
+#include "../apibegin.h"
+
+namespace asmjit {
+
+// ============================================================================
+// [asmjit::CpuInfo - DetectHwThreadsCount]
+// ============================================================================
+
+uint32_t CpuInfo::detectHwThreadsCount() {
+#if defined(ASMJIT_OS_WINDOWS)
+  SYSTEM_INFO info;
+  ::GetSystemInfo(&info);
+  return info.dwNumberOfProcessors;
+#elif defined(ASMJIT_OS_POSIX) && defined(_SC_NPROCESSORS_ONLN)
+  // It seems that sysconf returns the number of "logical" processors on both
+  // mac and linux.  So we get the number of "online logical" processors.
+  long res = ::sysconf(_SC_NPROCESSORS_ONLN);
+  if (res == -1) return 1;
+
+  return static_cast<uint32_t>(res);
+#else
+  return 1;
+#endif
+}
+
+// ============================================================================
+// [asmjit::CpuInfo - GetHost]
+// ============================================================================
+
+#if defined(ASMJIT_ARCH_X86) || defined(ASMJIT_ARCH_X64)
+struct AutoX86CpuInfo : public X86CpuInfo {
+  ASMJIT_INLINE AutoX86CpuInfo() : X86CpuInfo() {
+    X86CpuUtil::detect(this);
+  }
+};
+#else
+#error "AsmJit - Unsupported CPU."
+#endif
+
+const CpuInfo* CpuInfo::getHost() {
+#if defined(ASMJIT_ARCH_X86) || defined(ASMJIT_ARCH_X64)
+  static AutoX86CpuInfo cpuInfo;
+#else
+#error "AsmJit - Unsupported CPU."
+#endif
+  return &cpuInfo;
+}
+
+} // asmjit namespace
+
+// [Api-End]
+#include "../apiend.h"