/usr/include/hphp/util/arch.h is in hhvm-dev 3.21.0+dfsg-2ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | /*
+----------------------------------------------------------------------+
| HipHop for PHP |
+----------------------------------------------------------------------+
| Copyright (c) 2010-present Facebook, Inc. (http://www.facebook.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
*/
#ifndef incl_HPHP_ARCH_H
#define incl_HPHP_ARCH_H
#include "hphp/util/assertions.h"
namespace HPHP {
///////////////////////////////////////////////////////////////////////////////
enum class Arch { X64, ARM, PPC64, };
constexpr Arch arch() {
#if defined(__powerpc64__)
return Arch::PPC64;
#elif defined(__aarch64__)
return Arch::ARM;
#else
return Arch::X64;
#endif
}
constexpr bool arch_any() { return false; }
/*
* Convenience helper for guarding on a set of architectures.
*/
template<class... Tail>
bool arch_any(Arch a, Tail&&... archs) {
return arch() == a || arch_any(archs...);
}
/*
* MSVC's Preprocessor is completely idiotic, so we have to play by its rules
* and forcefully expand the variadic args so they aren't all interpreted as the
* first argument to func.
*/
#define MSVC_GLUE(x, y) x y
/*
* Macro for defining easy arch-dispatch wrappers.
*
* We need to specify the return type explicitly, or else we may drop refs.
*/
#define ARCH_SWITCH_CALL(func, ...) \
([&]() -> decltype(x64::func(__VA_ARGS__)) { \
switch (arch()) { \
case Arch::X64: \
return x64::MSVC_GLUE(func, (__VA_ARGS__)); \
case Arch::ARM: \
return arm::MSVC_GLUE(func, (__VA_ARGS__)); \
case Arch::PPC64: \
return ppc64::MSVC_GLUE(func, (__VA_ARGS__)); \
} \
not_reached(); \
}())
///////////////////////////////////////////////////////////////////////////////
}
#endif
|