rpcs3/rpcs3/Emu/Memory/vm_ptr.h
Nekotekina 714da1aa7c vm::var fix, vm::ptr improved
GetCurrentPPUThread() removed
2015-07-10 04:31:00 +03:00

531 lines
17 KiB
C++

#pragma once
class PPUThread;
struct ARMv7Context;
namespace vm
{
// helper SFINAE type for vm::_ptr_base comparison operators (enables comparison between equal types and between any type and void*)
template<typename T1, typename T2, typename RT = void> using if_comparable_t = std::enable_if_t<
std::is_void<T1>::value ||
std::is_void<T2>::value ||
std::is_same<std::remove_cv_t<T1>, std::remove_cv_t<T2>>::value,
RT>;
// helper SFINAE type for vm::_ptr_base pointer arithmetic operators and indirection (disabled for void and function pointers)
template<typename T, typename RT = void> using if_arithmetical_ptr_t = std::enable_if_t<
!std::is_void<T>::value &&
!std::is_function<T>::value,
RT>;
template<typename T, typename AT = u32>
struct _ptr_base
{
AT m_addr; // don't access directly
using type = T;
static_assert(!std::is_pointer<T>::value, "vm::_ptr_base<> error: invalid type (pointer)");
static_assert(!std::is_reference<T>::value, "vm::_ptr_base<> error: invalid type (reference)");
AT addr() const
{
return m_addr;
}
// get vm pointer to member
template<typename MT, typename T2, typename = if_comparable_t<T, T2>> _ptr_base<MT> of(MT T2::*const member) const
{
const u32 offset = static_cast<u32>(reinterpret_cast<std::ptrdiff_t>(&(reinterpret_cast<T*>(0ull)->*member)));
return{ vm::cast(m_addr + offset) };
}
// get vm pointer to array member with array subscribtion
template<typename MT, typename T2, typename = if_comparable_t<T, T2>> _ptr_base<std::remove_extent_t<MT>> of(MT T2::*const member, u32 index) const
{
const u32 offset = static_cast<u32>(reinterpret_cast<std::ptrdiff_t>(&(reinterpret_cast<T*>(0ull)->*member)));
return{ vm::cast(m_addr + offset + sizeof32(T) * index) };
}
template<typename CT> std::enable_if_t<std::is_assignable<AT&, CT>::value> set(const CT& value)
{
m_addr = value;
}
template<typename AT2 = AT> static std::enable_if_t<std::is_assignable<AT&, AT2>::value, _ptr_base> make(const AT2& addr)
{
return{ convert_le_be<AT>(addr) };
}
T* get_ptr() const
{
return vm::get_ptr<T>(vm::cast(m_addr));
}
T* priv_ptr() const
{
return vm::priv_ptr<T>(vm::cast(m_addr));
}
T* operator ->() const
{
return get_ptr();
}
std::add_lvalue_reference_t<T> operator [](u32 index) const
{
static_assert(!std::is_void<T>::value, "vm::_ptr_base<> error: operator[] is not available for void pointers");
return vm::get_ref<T>(vm::cast(m_addr + sizeof32(T) * index));
}
// enable only the conversions which are originally possible between pointer types
template<typename T2, typename AT2, typename = std::enable_if_t<std::is_convertible<T*, T2*>::value>> operator _ptr_base<T2, AT2>() const
{
return{ convert_le_be<AT2>(vm::cast(m_addr)) };
}
template<typename T2, typename = std::enable_if_t<std::is_convertible<T*, T2*>::value>> explicit operator T2*() const
{
return get_ptr();
}
explicit operator bool() const
{
return m_addr != 0;
}
// test address alignment using alignof(T)
bool aligned() const
{
return m_addr % alignof32(T) == 0;
}
// test address for arbitrary alignment or something
force_inline explicit_bool_t operator %(to_ne_t<AT> right) const
{
return m_addr % right;
}
_ptr_base& operator =(const _ptr_base&) = default;
};
template<typename AT, typename RT, typename... T>
struct _ptr_base<RT(T...), AT>
{
AT m_addr;
using type = func_def<RT(T...)>;
AT addr() const
{
return m_addr;
}
template<typename CT> std::enable_if_t<std::is_assignable<AT&, CT>::value> set(const CT& value)
{
m_addr = value;
}
template<typename AT2 = AT> static _ptr_base make(const AT2& addr)
{
return{ convert_le_be<AT>(addr) };
}
// defined in CB_FUNC.h, passing context is mandatory
RT operator()(PPUThread& CPU, T... args) const;
// defined in ARMv7Callback.h, passing context is mandatory
RT operator()(ARMv7Context& context, T... args) const;
// conversion to another function pointer
template<typename AT2> operator _ptr_base<type, AT2>() const
{
return{ convert_le_be<AT2>(vm::cast(m_addr)) };
}
explicit operator bool() const
{
return m_addr != 0;
}
_ptr_base& operator =(const _ptr_base&) = default;
};
template<typename AT, typename RT, typename... T>
struct _ptr_base<RT(*)(T...), AT>
{
AT m_addr;
static_assert(!sizeof(AT), "vm::_ptr_base<> error: use RT(T...) format for functions instead of RT(*)(T...)");
};
// Native endianness pointer to LE data
template<typename T, typename AT = u32> using ptrl = _ptr_base<to_le_t<T>, AT>;
// Native endianness pointer to BE data
template<typename T, typename AT = u32> using ptrb = _ptr_base<to_be_t<T>, AT>;
// BE pointer to LE data
template<typename T, typename AT = u32> using bptrl = _ptr_base<to_le_t<T>, to_be_t<AT>>;
// BE pointer to BE data
template<typename T, typename AT = u32> using bptrb = _ptr_base<to_be_t<T>, to_be_t<AT>>;
// LE pointer to LE data
template<typename T, typename AT = u32> using lptrl = _ptr_base<to_le_t<T>, to_le_t<AT>>;
// LE pointer to BE data
template<typename T, typename AT = u32> using lptrb = _ptr_base<to_be_t<T>, to_le_t<AT>>;
namespace ps3
{
// default pointer for PS3 HLE functions (Native endianness pointer to BE data)
template<typename T, typename AT = u32> using ptr = ptrb<T, AT>;
// default pointer to pointer for PS3 HLE functions (Native endianness pointer to BE pointer to BE data)
template<typename T, typename AT = u32, typename AT2 = u32> using pptr = ptr<ptr<T, AT2>, AT>;
// default pointer for PS3 HLE structures (BE pointer to BE data)
template<typename T, typename AT = u32> using bptr = bptrb<T, AT>;
// default pointer to pointer for PS3 HLE structures (BE pointer to BE pointer to BE data)
template<typename T, typename AT = u32, typename AT2 = u32> using bpptr = bptr<ptr<T, AT2>, AT>;
// native endianness pointer to const BE data
template<typename T, typename AT = u32> using cptr = ptr<const T, AT>;
// BE pointer to const BE data
template<typename T, typename AT = u32> using bcptr = bptr<const T, AT>;
template<typename T, typename AT = u32> using cpptr = pptr<const T, AT>;
template<typename T, typename AT = u32> using bcpptr = bpptr<const T, AT>;
}
namespace psv
{
// default pointer for PSV HLE functions (Native endianness pointer to LE data)
template<typename T> using ptr = ptrl<T>;
// default pointer to pointer for PSV HLE functions (Native endianness pointer to LE pointer to LE data)
template<typename T> using pptr = ptr<ptr<T>>;
// default pointer for PSV HLE structures (LE pointer to LE data)
template<typename T> using lptr = lptrl<T>;
// default pointer to pointer for PSV HLE structures (LE pointer to LE pointer to LE data)
template<typename T> using lpptr = lptr<ptr<T>>;
// native endianness pointer to const LE data
template<typename T> using cptr = ptr<const T>;
// LE pointer to const LE data
template<typename T> using lcptr = lptr<const T>;
template<typename T> using cpptr = pptr<const T>;
template<typename T> using lcpptr = lpptr<const T>;
}
struct null_t
{
template<typename T, typename AT> operator _ptr_base<T, AT>() const
{
return{};
}
};
// vm::null is convertible to any vm::ptr type as null pointer in virtual memory
static null_t null;
// perform static_cast (for example, vm::ptr<void> to vm::ptr<char>)
template<typename CT, typename T, typename AT, typename = decltype(static_cast<CT*>(std::declval<T*>()))> inline _ptr_base<CT, AT> static_ptr_cast(const _ptr_base<T, AT>& other)
{
return{ other.m_addr };
}
// perform const_cast (for example, vm::cptr<char> to vm::ptr<char>)
template<typename CT, typename T, typename AT, typename = decltype(const_cast<CT*>(std::declval<T*>()))> inline _ptr_base<CT, AT> const_ptr_cast(const _ptr_base<T, AT>& other)
{
return{ other.m_addr };
}
// perform reinterpret_cast (for example, vm::ptr<char> to vm::ptr<u32>)
template<typename CT, typename T, typename AT, typename = decltype(reinterpret_cast<CT*>(std::declval<T*>()))> inline _ptr_base<CT, AT> reinterpret_ptr_cast(const _ptr_base<T, AT>& other)
{
return{ other.m_addr };
}
}
// unary plus operator for vm::_ptr_base (always available)
template<typename T, typename AT> inline vm::_ptr_base<T, AT> operator +(const vm::_ptr_base<T, AT>& ptr)
{
return ptr;
}
// indirection operator for vm::_ptr_base
template<typename T, typename AT> inline vm::if_arithmetical_ptr_t<T, T&> operator *(const vm::_ptr_base<T, AT>& ptr)
{
return vm::get_ref<T>(vm::cast(ptr.m_addr));
}
// postfix increment operator for vm::_ptr_base
template<typename T, typename AT> inline vm::if_arithmetical_ptr_t<T, vm::_ptr_base<T, AT>> operator ++(vm::_ptr_base<T, AT>& ptr, int)
{
const AT result = ptr.m_addr;
ptr.m_addr += sizeof32(T);
return{ result };
}
// prefix increment operator for vm::_ptr_base
template<typename T, typename AT> inline vm::if_arithmetical_ptr_t<T, vm::_ptr_base<T, AT>&> operator ++(vm::_ptr_base<T, AT>& ptr)
{
ptr.m_addr += sizeof32(T);
return ptr;
}
// postfix decrement operator for vm::_ptr_base
template<typename T, typename AT> inline vm::if_arithmetical_ptr_t<T, vm::_ptr_base<T, AT>> operator --(vm::_ptr_base<T, AT>& ptr, int)
{
const AT result = ptr.m_addr;
ptr.m_addr -= sizeof32(T);
return{ result };
}
// prefix decrement operator for vm::_ptr_base
template<typename T, typename AT> inline vm::if_arithmetical_ptr_t<T, vm::_ptr_base<T, AT>&> operator --(vm::_ptr_base<T, AT>& ptr)
{
ptr.m_addr -= sizeof32(T);
return ptr;
}
// addition assignment operator for vm::_ptr_base (pointer += integer)
template<typename T, typename AT> inline vm::if_arithmetical_ptr_t<T, vm::_ptr_base<T, AT>&> operator +=(vm::_ptr_base<T, AT>& ptr, to_ne_t<AT> count)
{
ptr.m_addr += count * sizeof32(T);
return ptr;
}
// subtraction assignment operator for vm::_ptr_base (pointer -= integer)
template<typename T, typename AT> inline vm::if_arithmetical_ptr_t<T, vm::_ptr_base<T, AT>&> operator -=(vm::_ptr_base<T, AT>& ptr, to_ne_t<AT> count)
{
ptr.m_addr -= count * sizeof32(T);
return ptr;
}
// addition operator for vm::_ptr_base (pointer + integer)
template<typename T, typename AT> inline vm::if_arithmetical_ptr_t<T, vm::_ptr_base<T, AT>> operator +(const vm::_ptr_base<T, AT>& ptr, to_ne_t<AT> count)
{
return{ convert_le_be<AT>(ptr.m_addr + count * sizeof32(T)) };
}
// addition operator for vm::_ptr_base (integer + pointer)
template<typename T, typename AT> inline vm::if_arithmetical_ptr_t<T, vm::_ptr_base<T, AT>> operator +(to_ne_t<AT> count, const vm::_ptr_base<T, AT>& ptr)
{
return{ convert_le_be<AT>(ptr.m_addr + count * sizeof32(T)) };
}
// subtraction operator for vm::_ptr_base (pointer - integer)
template<typename T, typename AT> inline vm::if_arithmetical_ptr_t<T, vm::_ptr_base<T, AT>> operator -(const vm::_ptr_base<T, AT>& ptr, to_ne_t<AT> count)
{
return{ convert_le_be<AT>(ptr.m_addr - count * sizeof32(T)) };
}
// pointer difference operator for vm::_ptr_base
template<typename T1, typename AT1, typename T2, typename AT2> inline std::enable_if_t<
!std::is_void<T1>::value &&
!std::is_void<T2>::value &&
!std::is_function<T1>::value &&
!std::is_function<T2>::value &&
std::is_same<std::remove_cv_t<T1>, std::remove_cv_t<T2>>::value,
s32> operator -(const vm::_ptr_base<T1, AT1>& left, const vm::_ptr_base<T2, AT2>& right)
{
return static_cast<s32>(left.m_addr - right.m_addr) / sizeof32(T1);
}
// comparison operator for vm::_ptr_base (pointer1 == pointer2)
template<typename T1, typename AT1, typename T2, typename AT2> vm::if_comparable_t<T1, T2, bool> operator ==(const vm::_ptr_base<T1, AT1>& left, const vm::_ptr_base<T2, AT2>& right)
{
return left.m_addr == right.m_addr;
}
template<typename T, typename AT> bool operator ==(const vm::null_t&, const vm::_ptr_base<T, AT>& ptr)
{
return ptr.m_addr == 0;
}
template<typename T, typename AT> bool operator ==(const vm::_ptr_base<T, AT>& ptr, const vm::null_t&)
{
return ptr.m_addr == 0;
}
// comparison operator for vm::_ptr_base (pointer1 != pointer2)
template<typename T1, typename AT1, typename T2, typename AT2> vm::if_comparable_t<T1, T2, bool> operator !=(const vm::_ptr_base<T1, AT1>& left, const vm::_ptr_base<T2, AT2>& right)
{
return left.m_addr != right.m_addr;
}
template<typename T, typename AT> bool operator !=(const vm::null_t&, const vm::_ptr_base<T, AT>& ptr)
{
return ptr.m_addr != 0;
}
template<typename T, typename AT> bool operator !=(const vm::_ptr_base<T, AT>& ptr, const vm::null_t&)
{
return ptr.m_addr != 0;
}
// comparison operator for vm::_ptr_base (pointer1 < pointer2)
template<typename T1, typename AT1, typename T2, typename AT2> vm::if_comparable_t<T1, T2, bool> operator <(const vm::_ptr_base<T1, AT1>& left, const vm::_ptr_base<T2, AT2>& right)
{
return left.m_addr < right.m_addr;
}
template<typename T, typename AT> bool operator <(const vm::null_t&, const vm::_ptr_base<T, AT>& ptr)
{
return ptr.m_addr != 0;
}
template<typename T, typename AT> bool operator <(const vm::_ptr_base<T, AT>&, const vm::null_t&)
{
return false;
}
// comparison operator for vm::_ptr_base (pointer1 <= pointer2)
template<typename T1, typename AT1, typename T2, typename AT2> vm::if_comparable_t<T1, T2, bool> operator <=(const vm::_ptr_base<T1, AT1>& left, const vm::_ptr_base<T2, AT2>& right)
{
return left.m_addr <= right.m_addr;
}
template<typename T, typename AT> bool operator <=(const vm::null_t&, const vm::_ptr_base<T, AT>&)
{
return true;
}
template<typename T, typename AT> bool operator <=(const vm::_ptr_base<T, AT>& ptr, const vm::null_t&)
{
return ptr.m_addr == 0;
}
// comparison operator for vm::_ptr_base (pointer1 > pointer2)
template<typename T1, typename AT1, typename T2, typename AT2> vm::if_comparable_t<T1, T2, bool> operator >(const vm::_ptr_base<T1, AT1>& left, const vm::_ptr_base<T2, AT2>& right)
{
return left.m_addr > right.m_addr;
}
template<typename T, typename AT> bool operator >(const vm::null_t&, const vm::_ptr_base<T, AT>&)
{
return false;
}
template<typename T, typename AT> bool operator >(const vm::_ptr_base<T, AT>& ptr, const vm::null_t&)
{
return ptr.m_addr != 0;
}
// comparison operator for vm::_ptr_base (pointer1 >= pointer2)
template<typename T1, typename AT1, typename T2, typename AT2> vm::if_comparable_t<T1, T2, bool> operator >=(const vm::_ptr_base<T1, AT1>& left, const vm::_ptr_base<T2, AT2>& right)
{
return left.m_addr >= right.m_addr;
}
template<typename T, typename AT> bool operator >=(const vm::null_t&, const vm::_ptr_base<T, AT>& ptr)
{
return ptr.m_addr == 0;
}
template<typename T, typename AT> bool operator >=(const vm::_ptr_base<T, AT>&, const vm::null_t&)
{
return true;
}
// external specialization for is_be_t<> (true if AT is be_t<>)
template<typename T, typename AT>
struct is_be_t<vm::_ptr_base<T, AT>> : public std::integral_constant<bool, is_be_t<AT>::value>
{
};
// external specialization for is_le_t<> (true if AT is le_t<>)
template<typename T, typename AT>
struct is_le_t<vm::_ptr_base<T, AT>> : public std::integral_constant<bool, is_le_t<AT>::value>
{
};
// external specialization for to_ne_t<> (change AT endianness to native)
template<typename T, typename AT>
struct to_ne<vm::_ptr_base<T, AT>>
{
using type = vm::_ptr_base<T, to_ne_t<AT>>;
};
// external specialization for to_be_t<> (change AT endianness to BE)
template<typename T, typename AT>
struct to_be<vm::_ptr_base<T, AT>>
{
using type = vm::_ptr_base<T, to_be_t<AT>>;
};
// external specialization for to_le_t<> (change AT endianness to LE)
template<typename T, typename AT>
struct to_le<vm::_ptr_base<T, AT>>
{
using type = vm::_ptr_base<T, to_le_t<AT>>;
};
namespace fmt
{
// external specialization for fmt::format function
template<typename T, typename AT>
struct unveil<vm::_ptr_base<T, AT>, false>
{
using result_type = typename unveil<AT>::result_type;
force_inline static result_type get_value(const vm::_ptr_base<T, AT>& arg)
{
return unveil<AT>::get_value(arg.addr());
}
};
}
// external specializations for PPU GPR (SC_FUNC.h, CB_FUNC.h)
template<typename T, bool is_enum>
struct cast_ppu_gpr;
template<typename T, typename AT>
struct cast_ppu_gpr<vm::_ptr_base<T, AT>, false>
{
force_inline static u64 to_gpr(const vm::_ptr_base<T, AT>& value)
{
return cast_ppu_gpr<AT, std::is_enum<AT>::value>::to_gpr(value.addr());
}
force_inline static vm::_ptr_base<T, AT> from_gpr(const u64 reg)
{
return vm::_ptr_base<T, AT>::make(cast_ppu_gpr<AT, std::is_enum<AT>::value>::from_gpr(reg));
}
};
// external specializations for ARMv7 GPR
template<typename T, bool is_enum>
struct cast_armv7_gpr;
template<typename T, typename AT>
struct cast_armv7_gpr<vm::_ptr_base<T, AT>, false>
{
force_inline static u32 to_gpr(const vm::_ptr_base<T, AT>& value)
{
return cast_armv7_gpr<AT, std::is_enum<AT>::value>::to_gpr(value.addr());
}
force_inline static vm::_ptr_base<T, AT> from_gpr(const u32 reg)
{
return vm::_ptr_base<T, AT>::make(cast_armv7_gpr<AT, std::is_enum<AT>::value>::from_gpr(reg));
}
};