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022f7790db
This is quite nice, although I wish [[gnu::always_inline]] implied inline. Also "gnu::" is kind of a wart, but whatcha gonna do.
101 lines
2.9 KiB
C++
101 lines
2.9 KiB
C++
#pragma once
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#include <AK/Types.h>
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typedef dword __u32;
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typedef word __u16;
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typedef byte __u8;
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typedef int __s32;
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typedef short __s16;
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typedef dword uid_t;
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typedef dword gid_t;
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typedef signed_word pid_t;
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typedef dword time_t;
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typedef dword useconds_t;
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typedef dword suseconds_t;
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struct timeval {
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time_t tv_sec;
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suseconds_t tv_usec;
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};
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#define UTSNAME_ENTRY_LEN 65
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struct utsname {
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char sysname[UTSNAME_ENTRY_LEN];
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char nodename[UTSNAME_ENTRY_LEN];
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char release[UTSNAME_ENTRY_LEN];
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char version[UTSNAME_ENTRY_LEN];
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char machine[UTSNAME_ENTRY_LEN];
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};
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typedef dword ino_t;
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typedef signed_dword off_t;
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typedef dword dev_t;
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typedef word mode_t;
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typedef dword nlink_t;
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typedef dword blksize_t;
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typedef dword blkcnt_t;
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struct [[gnu::packed]] FarPtr {
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dword offset { 0 };
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word selector { 0 };
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};
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class PhysicalAddress {
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public:
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PhysicalAddress() { }
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explicit PhysicalAddress(dword address) : m_address(address) { }
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PhysicalAddress offset(dword o) const { return PhysicalAddress(m_address + o); }
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dword get() const { return m_address; }
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void set(dword address) { m_address = address; }
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void mask(dword m) { m_address &= m; }
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bool is_null() const { return m_address == 0; }
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byte* as_ptr() { return reinterpret_cast<byte*>(m_address); }
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const byte* as_ptr() const { return reinterpret_cast<const byte*>(m_address); }
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dword page_base() const { return m_address & 0xfffff000; }
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bool operator==(const PhysicalAddress& other) const { return m_address == other.m_address; }
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private:
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dword m_address { 0 };
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};
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class LinearAddress {
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public:
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LinearAddress() { }
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explicit LinearAddress(dword address) : m_address(address) { }
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bool is_null() const { return m_address == 0; }
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LinearAddress offset(dword o) const { return LinearAddress(m_address + o); }
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dword get() const { return m_address; }
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void set(dword address) { m_address = address; }
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void mask(dword m) { m_address &= m; }
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bool operator<=(const LinearAddress& other) const { return m_address <= other.m_address; }
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bool operator>=(const LinearAddress& other) const { return m_address >= other.m_address; }
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bool operator>(const LinearAddress& other) const { return m_address > other.m_address; }
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bool operator<(const LinearAddress& other) const { return m_address < other.m_address; }
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bool operator==(const LinearAddress& other) const { return m_address == other.m_address; }
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bool operator!=(const LinearAddress& other) const { return m_address != other.m_address; }
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byte* as_ptr() { return reinterpret_cast<byte*>(m_address); }
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const byte* as_ptr() const { return reinterpret_cast<const byte*>(m_address); }
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dword page_base() const { return m_address & 0xfffff000; }
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private:
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dword m_address { 0 };
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};
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inline LinearAddress operator-(const LinearAddress& a, const LinearAddress& b)
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{
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return LinearAddress(a.get() - b.get());
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}
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