ladybird/AK/Types.h
Andreas Kling 8c0ae711d8 Kernel+LibC: Make page fault crashes a bit more readable.
We'll now try to detect crashes that were due to dereferencing nullptr,
uninitialized malloc() memory, or recently free()'d memory.
It's not perfect but I think it's pretty good. :^)

Also added some color to the most important parts of the crash log,
and added some more modes to /bin/crash for exercising this code.

Fixes #243.
2019-06-19 20:52:12 +02:00

65 lines
1.4 KiB
C++

#pragma once
#include <AK/IterationDecision.h>
#ifdef __serenity__
typedef unsigned char byte;
typedef unsigned short word;
typedef unsigned int dword;
typedef unsigned long long int qword;
typedef signed char signed_byte;
typedef signed short signed_word;
typedef signed int signed_dword;
typedef signed long long int signed_qword;
typedef decltype(sizeof(void*)) size_t;
typedef signed_dword ssize_t;
static_assert(sizeof(size_t) == sizeof(dword));
static_assert(sizeof(ssize_t) == sizeof(signed_dword));
typedef __PTRDIFF_TYPE__ ptrdiff_t;
typedef byte uint8_t;
typedef word uint16_t;
typedef dword uint32_t;
typedef qword uint64_t;
typedef signed_byte int8_t;
typedef signed_word int16_t;
typedef signed_dword int32_t;
typedef signed_qword int64_t;
#else
# include <stdint.h>
# include <sys/types.h>
typedef uint8_t byte;
typedef uint16_t word;
typedef uint32_t dword;
typedef uint64_t qword;
typedef int8_t signed_byte;
typedef int16_t signed_word;
typedef int32_t signed_dword;
typedef int64_t signed_qword;
#endif
constexpr unsigned KB = 1024;
constexpr unsigned MB = KB * KB;
constexpr unsigned GB = KB * KB * KB;
namespace std {
typedef decltype(nullptr) nullptr_t;
}
static constexpr dword explode_byte(byte b)
{
return b << 24 | b << 16 | b << 8 | b;
}
static_assert(explode_byte(0xff) == 0xffffffff);
static_assert(explode_byte(0x80) == 0x80808080);
static_assert(explode_byte(0x7f) == 0x7f7f7f7f);
static_assert(explode_byte(0) == 0);