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Theodosius/Examples/Theodosius-Usermode/asmjit/core/target.h

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4 years ago
// AsmJit - Machine code generation for C++
//
// * Official AsmJit Home Page: https://asmjit.com
// * Official Github Repository: https://github.com/asmjit/asmjit
//
// Copyright (c) 2008-2020 The AsmJit Authors
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
#ifndef ASMJIT_CORE_TARGET_H_INCLUDED
#define ASMJIT_CORE_TARGET_H_INCLUDED
#include "../core/archtraits.h"
#include "../core/func.h"
ASMJIT_BEGIN_NAMESPACE
//! \addtogroup asmjit_core
//! \{
// ============================================================================
// [asmjit::CodeInfo]
// ============================================================================
#ifndef ASMJIT_NO_DEPRECATED
//! Basic information about a code (or target). It describes its architecture,
//! code generation mode (or optimization level), and base address.
class ASMJIT_DEPRECATED_STRUCT("Use Environment instead of CodeInfo") CodeInfo {
public:
//!< Environment information.
Environment _environment;
//! Base address.
uint64_t _baseAddress;
//! \name Construction & Destruction
//! \{
inline CodeInfo() noexcept
: _environment(),
_baseAddress(Globals::kNoBaseAddress) {}
inline explicit CodeInfo(uint32_t arch, uint32_t subArch = 0, uint64_t baseAddress = Globals::kNoBaseAddress) noexcept
: _environment(arch, subArch),
_baseAddress(baseAddress) {}
inline explicit CodeInfo(const Environment& environment, uint64_t baseAddress = Globals::kNoBaseAddress) noexcept
: _environment(environment),
_baseAddress(baseAddress) {}
inline CodeInfo(const CodeInfo& other) noexcept { init(other); }
inline bool isInitialized() const noexcept {
return _environment.arch() != Environment::kArchUnknown;
}
inline void init(const CodeInfo& other) noexcept {
*this = other;
}
inline void init(uint32_t arch, uint32_t subArch = 0, uint64_t baseAddress = Globals::kNoBaseAddress) noexcept {
_environment.init(arch, subArch);
_baseAddress = baseAddress;
}
inline void reset() noexcept {
_environment.reset();
_baseAddress = Globals::kNoBaseAddress;
}
//! \}
//! \name Overloaded Operators
//! \{
inline CodeInfo& operator=(const CodeInfo& other) noexcept = default;
inline bool operator==(const CodeInfo& other) const noexcept { return ::memcmp(this, &other, sizeof(*this)) == 0; }
inline bool operator!=(const CodeInfo& other) const noexcept { return ::memcmp(this, &other, sizeof(*this)) != 0; }
//! \}
//! \name Accessors
//! \{
//! Returns the target environment information, see \ref Environment.
inline const Environment& environment() const noexcept { return _environment; }
//! Returns the target architecture, see \ref Environment::Arch.
inline uint32_t arch() const noexcept { return _environment.arch(); }
//! Returns the target sub-architecture, see \ref Environment::SubArch.
inline uint32_t subArch() const noexcept { return _environment.subArch(); }
//! Returns the native size of the target's architecture GP register.
inline uint32_t gpSize() const noexcept { return _environment.registerSize(); }
//! Tests whether this CodeInfo has a base address set.
inline bool hasBaseAddress() const noexcept { return _baseAddress != Globals::kNoBaseAddress; }
//! Returns the base address or \ref Globals::kNoBaseAddress if it's not set.
inline uint64_t baseAddress() const noexcept { return _baseAddress; }
//! Sets base address to `p`.
inline void setBaseAddress(uint64_t p) noexcept { _baseAddress = p; }
//! Resets base address (implicitly sets it to \ref Globals::kNoBaseAddress).
inline void resetBaseAddress() noexcept { _baseAddress = Globals::kNoBaseAddress; }
//! \}
};
#endif // !ASMJIT_NO_DEPRECATED
// ============================================================================
// [asmjit::Target]
// ============================================================================
//! Target is an abstract class that describes a machine code target.
class ASMJIT_VIRTAPI Target {
public:
ASMJIT_BASE_CLASS(Target)
ASMJIT_NONCOPYABLE(Target)
//! Target environment information.
Environment _environment;
//! \name Construction & Destruction
//! \{
//! Creates a `Target` instance.
ASMJIT_API Target() noexcept;
//! Destroys the `Target` instance.
ASMJIT_API virtual ~Target() noexcept;
//! \}
//! \name Accessors
//! \{
//! Returns CodeInfo of this target.
//!
//! CodeInfo can be used to setup a CodeHolder in case you plan to generate a
//! code compatible and executable by this Runtime.
inline const Environment& environment() const noexcept { return _environment; }
//! Returns the target architecture, see \ref Environment::Arch.
inline uint32_t arch() const noexcept { return _environment.arch(); }
//! Returns the target sub-architecture, see \ref Environment::SubArch.
inline uint32_t subArch() const noexcept { return _environment.subArch(); }
#ifndef ASMJIT_NO_DEPRECATED
ASMJIT_DEPRECATED("Use environment() instead")
inline CodeInfo codeInfo() const noexcept { return CodeInfo(_environment); }
ASMJIT_DEPRECATED("Use environment().format() instead")
inline uint32_t targetType() const noexcept { return _environment.format(); }
#endif // !ASMJIT_NO_DEPRECATED
//! \}
};
//! \}
ASMJIT_END_NAMESPACE
#endif // ASMJIT_CORE_TARGET_H_INCLUDED