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serenity/AK/Types.h

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Meta: Add license header to source files As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header.
2020-01-18 08:38:21 +00:00
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
Import all this stuff into a single repo called Serenity.
2018-10-10 09:53:07 +00:00
#pragma once
Meta: Tweak .clang-format to not wrap braces after enums.
2019-06-07 15:13:23 +00:00
#include <AK/IterationDecision.h>
AK: Move clang-specific consumable annotation helpers to Platform.h
2019-07-24 06:16:59 +00:00
#include <AK/Platform.h>
AK: Add global FlatPtr typedef. It's u32 or u64, based on sizeof(void*) Use this instead of uintptr_t throughout the codebase. This makes it possible to pass a FlatPtr to something that has u32 and u64 overloads.
2020-03-08 09:36:51 +00:00
#include <AK/StdLibExtras.h>
Meta: Tweak .clang-format to not wrap braces after enums.
2019-06-07 15:13:23 +00:00
AK: Simplify Types.h a little bit
2020-05-23 10:41:38 +00:00
typedef __UINT64_TYPE__ u64;
typedef __UINT32_TYPE__ u32;
typedef __UINT16_TYPE__ u16;
typedef __UINT8_TYPE__ u8;
typedef __INT64_TYPE__ i64;
typedef __INT32_TYPE__ i32;
typedef __INT16_TYPE__ i16;
typedef __INT8_TYPE__ i8;
Get rid of SERENITY macro since the compiler already defines __serenity__ This makes it a bit easier to use AK templates out-of-tree.
2019-04-20 10:58:02 +00:00
#ifdef __serenity__
AK: Add u8/u16/u32/u64 and i8/i16/i32/i64 typedefs. These are more explicit and will be immediately understandable unlike the old types which assume that you're in an IA-32 headspace. :^)
2019-07-01 13:57:06 +00:00
Kernel: Change the format of /proc/all to JSON. Update ProcessManager, top and WSCPUMonitor to handle the new format. Since the kernel is not allowed to use floating-point math, we now compile the JSON classes in AK without JsonValue::Type::Double support. To accomodate large unsigned ints, I added a JsonValue::Type::UnsignedInt.
2019-06-29 07:04:45 +00:00
typedef __SIZE_TYPE__ size_t;
AK: Simplify Types.h a little bit
2020-05-23 10:41:38 +00:00
typedef MakeSigned<size_t>::type ssize_t;
Build ELFLoader into Kernel.
2018-10-18 13:03:10 +00:00
Move over to building all of userspace with i686-pc-serenity-g++.
2019-02-22 13:43:12 +00:00
typedef __PTRDIFF_TYPE__ ptrdiff_t;
Start working on memory-mapped files. First of all, change sys$mmap to take a struct SC_mmap_params since our sycsall calling convention can't handle more than 3 arguments. This exposed a bug in Syscall::invoke() needing to use clobber lists. It was a bit confusing to debug. :^)
2018-11-08 10:37:01 +00:00
Kernel+AK: Add/fix uintptr_t and intptr_t definitions We should move towards using uintptr_t instead of u32 for pointers everywhere, to prepare for an eventual 64-bit port.
2020-01-20 12:05:55 +00:00
typedef __INTPTR_TYPE__ intptr_t;
typedef __UINTPTR_TYPE__ uintptr_t;
AK: Rename the common integer typedefs to make it obvious what they are. These types can be picked up by including <AK/Types.h>: * u8, u16, u32, u64 (unsigned) * i8, i16, i32, i64 (signed)
2019-07-03 19:17:35 +00:00
typedef u8 uint8_t;
typedef u16 uint16_t;
typedef u32 uint32_t;
typedef u64 uint64_t;
Start working on memory-mapped files. First of all, change sys$mmap to take a struct SC_mmap_params since our sycsall calling convention can't handle more than 3 arguments. This exposed a bug in Syscall::invoke() needing to use clobber lists. It was a bit confusing to debug. :^)
2018-11-08 10:37:01 +00:00
AK: Rename the common integer typedefs to make it obvious what they are. These types can be picked up by including <AK/Types.h>: * u8, u16, u32, u64 (unsigned) * i8, i16, i32, i64 (signed)
2019-07-03 19:17:35 +00:00
typedef i8 int8_t;
typedef i16 int16_t;
typedef i32 int32_t;
typedef i64 int64_t;
Start working on memory-mapped files. First of all, change sys$mmap to take a struct SC_mmap_params since our sycsall calling convention can't handle more than 3 arguments. This exposed a bug in Syscall::invoke() needing to use clobber lists. It was a bit confusing to debug. :^)
2018-11-08 10:37:01 +00:00
Kernel: Add 'ptrace' syscall This commit adds a basic implementation of the ptrace syscall, which allows one process (the tracer) to control another process (the tracee). While a process is being traced, it is stopped whenever a signal is received (other than SIGCONT). The tracer can start tracing another thread with PT_ATTACH, which causes the tracee to stop. From there, the tracer can use PT_CONTINUE to continue the execution of the tracee, or use other request codes (which haven't been implemented yet) to modify the state of the tracee. Additional request codes are PT_SYSCALL, which causes the tracee to continue exection but stop at the next entry or exit from a syscall, and PT_GETREGS which fethces the last saved register set of the tracee (can be used to inspect syscall arguments and return value). A special request code is PT_TRACE_ME, which is issued by the tracee and causes it to stop when it calls execve and wait for the tracer to attach.
2020-03-28 08:47:16 +00:00
typedef int pid_t;
Reduce dependence on STL.
2018-10-16 10:10:01 +00:00
#else
Add clang-format file Also run it across the whole tree to get everything using the One True Style. We don't yet run this in an automated fashion as it's a little slow, but there is a snippet to do so in makeall.sh.
2019-05-28 09:53:16 +00:00
# include <stdint.h>
# include <sys/types.h>
Import all this stuff into a single repo called Serenity.
2018-10-10 09:53:07 +00:00
Kernel: Add 'ptrace' syscall This commit adds a basic implementation of the ptrace syscall, which allows one process (the tracer) to control another process (the tracee). While a process is being traced, it is stopped whenever a signal is received (other than SIGCONT). The tracer can start tracing another thread with PT_ATTACH, which causes the tracee to stop. From there, the tracer can use PT_CONTINUE to continue the execution of the tracee, or use other request codes (which haven't been implemented yet) to modify the state of the tracee. Additional request codes are PT_SYSCALL, which causes the tracee to continue exection but stop at the next entry or exit from a syscall, and PT_GETREGS which fethces the last saved register set of the tracee (can be used to inspect syscall arguments and return value). A special request code is PT_TRACE_ME, which is issued by the tracee and causes it to stop when it calls execve and wait for the tracer to attach.
2020-03-28 08:47:16 +00:00
# ifdef __ptrdiff_t
AK: Add support for 64-bit size_t
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typedef __PTRDIFF_TYPE__ __ptrdiff_t;
Kernel: Add 'ptrace' syscall This commit adds a basic implementation of the ptrace syscall, which allows one process (the tracer) to control another process (the tracee). While a process is being traced, it is stopped whenever a signal is received (other than SIGCONT). The tracer can start tracing another thread with PT_ATTACH, which causes the tracee to stop. From there, the tracer can use PT_CONTINUE to continue the execution of the tracee, or use other request codes (which haven't been implemented yet) to modify the state of the tracee. Additional request codes are PT_SYSCALL, which causes the tracee to continue exection but stop at the next entry or exit from a syscall, and PT_GETREGS which fethces the last saved register set of the tracee (can be used to inspect syscall arguments and return value). A special request code is PT_TRACE_ME, which is issued by the tracee and causes it to stop when it calls execve and wait for the tracer to attach.
2020-03-28 08:47:16 +00:00
# endif
AK: Add support for 64-bit size_t
2020-01-30 23:03:58 +00:00
Start fixing up AK to work inside the kernel.
2018-10-16 11:59:28 +00:00
#endif
Import all this stuff into a single repo called Serenity.
2018-10-10 09:53:07 +00:00
AK: Add global FlatPtr typedef. It's u32 or u64, based on sizeof(void*) Use this instead of uintptr_t throughout the codebase. This makes it possible to pass a FlatPtr to something that has u32 and u64 overloads.
2020-03-08 09:36:51 +00:00
typedef Conditional<sizeof(void*) == 8, u64, u32>::Type FlatPtr;
Import all this stuff into a single repo called Serenity.
2018-10-10 09:53:07 +00:00
constexpr unsigned KB = 1024;
constexpr unsigned MB = KB * KB;
constexpr unsigned GB = KB * KB * KB;
Reduce dependence on STL.
2018-10-16 10:10:01 +00:00
namespace std {
typedef decltype(nullptr) nullptr_t;
}
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 18:52:12 +00:00
AK: Rename the common integer typedefs to make it obvious what they are. These types can be picked up by including <AK/Types.h>: * u8, u16, u32, u64 (unsigned) * i8, i16, i32, i64 (signed)
2019-07-03 19:17:35 +00:00
static constexpr u32 explode_byte(u8 b)
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 18:52:12 +00:00
{
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);
AK: Add a simple TriState type enum class TriState : u8 { False, True, Unknown };
2019-08-15 18:52:25 +00:00
AK: Add a useful align_up_to(value, power_of_two) function
2019-09-07 13:39:26 +00:00
inline constexpr size_t align_up_to(const size_t value, const size_t alignment)
{
return (value + (alignment - 1)) & ~(alignment - 1);
}
Kernel: Add 'ptrace' syscall This commit adds a basic implementation of the ptrace syscall, which allows one process (the tracer) to control another process (the tracee). While a process is being traced, it is stopped whenever a signal is received (other than SIGCONT). The tracer can start tracing another thread with PT_ATTACH, which causes the tracee to stop. From there, the tracer can use PT_CONTINUE to continue the execution of the tracee, or use other request codes (which haven't been implemented yet) to modify the state of the tracee. Additional request codes are PT_SYSCALL, which causes the tracee to continue exection but stop at the next entry or exit from a syscall, and PT_GETREGS which fethces the last saved register set of the tracee (can be used to inspect syscall arguments and return value). A special request code is PT_TRACE_ME, which is issued by the tracee and causes it to stop when it calls execve and wait for the tracer to attach.
2020-03-28 08:47:16 +00:00
enum class TriState : u8 { False,
True,
Unknown };
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