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Kernel+LibC: Move name length constants to Kernel/API from limits.h

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Reduce inclusion of limits.h as much as possible at the same time.

This does mean that kmalloc.h is now including Kernel/API/POSIX/limits.h
instead of LibC/limits.h, but the scope could be limited a lot more.
Basically every file in the kernel includes kmalloc.h, and needs the
limits.h include for PAGE_SIZE.
This commit is contained in:
Andrew Kaster 2023-01-07 11:14:17 -07:00 committed by Andrew Kaster
parent 046c23f567
commit ddea37b521
Notes: sideshowbarker 2024-07-17 01:25:26 +09:00 
Author: https://github.com/ADKaster
Commit: https://github.com/SerenityOS/serenity/commit/ddea37b521
Pull-request: https://github.com/SerenityOS/serenity/pull/16896
8 changed files with 19 additions and 21 deletions
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2
Kernel/API/InodeWatcherEvent.h
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@ -10,7 +10,7 @@
#include <AK/Types.h>
#ifdef KERNEL
# include <LibC/limits.h>
# include <Kernel/API/POSIX/sys/limits.h>
#else
# include <limits.h>
#endif

16
Kernel/API/POSIX/sys/limits.h
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@ -7,6 +7,22 @@
#pragma once
// FIXME: This file can be included from Lagom, but it should only be included on Serenity. When that is the case, we can remove the ifdef
#ifndef PAGE_SIZE
# define PAGE_SIZE 4096
#endif
#define PATH_MAX 4096
#if !defined MAXPATHLEN && defined PATH_MAX
# define MAXPATHLEN PATH_MAX
#endif
#define NAME_MAX 255
#define HOST_NAME_MAX 64
#define TTY_NAME_MAX 32
#define NGROUPS_MAX 32
#define PTHREAD_STACK_MIN (64 * 1024) // 64KiB

2
Kernel/Heap/kmalloc.h
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@ -7,7 +7,7 @@
#pragma once
#include <AK/Types.h>
#include <LibC/limits.h>
#include <Kernel/API/POSIX/sys/limits.h> // For PAGE_SIZE. Everyone needs PAGE_SIZE
#define KMALLOC_SCRUB_BYTE 0xbb
#define KFREE_SCRUB_BYTE 0xaa

1
Kernel/Memory/VirtualRange.cpp
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@ -8,7 +8,6 @@
#include <AK/Vector.h>
#include <Kernel/Memory/MemoryManager.h>
#include <Kernel/Memory/VirtualRange.h>
#include <LibC/limits.h>
namespace Kernel::Memory {

2
Kernel/Process.cpp
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@ -18,6 +18,7 @@
# include <Kernel/Devices/KCOVDevice.h>
#endif
#include <Kernel/API/POSIX/errno.h>
#include <Kernel/API/POSIX/sys/limits.h>
#include <Kernel/Devices/NullDevice.h>
#include <Kernel/FileSystem/Custody.h>
#include <Kernel/FileSystem/OpenFileDescription.h>
@ -38,7 +39,6 @@
#include <Kernel/Thread.h>
#include <Kernel/ThreadTracer.h>
#include <Kernel/TimerQueue.h>
#include <LibC/limits.h>
namespace Kernel {

1
Kernel/Syscalls/execve.cpp
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@ -20,7 +20,6 @@
#include <Kernel/Random.h>
#include <Kernel/Scheduler.h>
#include <Kernel/Time/TimeManagement.h>
#include <LibC/limits.h>
#include <LibELF/AuxiliaryVector.h>
#include <LibELF/Image.h>
#include <LibELF/Validation.h>

1
Kernel/Syscalls/mmap.cpp
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@ -20,7 +20,6 @@
#include <Kernel/PerformanceEventBuffer.h>
#include <Kernel/PerformanceManager.h>
#include <Kernel/Process.h>
#include <LibC/limits.h>
#include <LibELF/Validation.h>
namespace Kernel {

15
Userland/Libraries/LibC/limits.h
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@ -12,21 +12,6 @@
#include <bits/stdint.h>
#include <bits/wchar.h>
#ifndef PAGE_SIZE
# define PAGE_SIZE 4096
#endif
#define HOST_NAME_MAX 64
#define PATH_MAX 4096
#if !defined MAXPATHLEN && defined PATH_MAX
# define MAXPATHLEN PATH_MAX
#endif
#define NAME_MAX 255
#define TTY_NAME_MAX 32
#define PIPE_BUF 4096
#define INT_MAX INT32_MAX