ladybird/Kernel/Syscalls/emuctl.cpp

/*
 * Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#include <Kernel/Process.h>

namespace Kernel {

ErrorOr<FlatPtr> Process::sys$emuctl()
{
    VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this);
    return ENOSYS;
}

}
Kernel+UserspaceEmulator: Add sys$emuctl() system call This returns ENOSYS if you are running in the real kernel, and some other result if you are running in UserspaceEmulator. There are other ways we could check if we're inside an emulator, but it seemed easier to just ask. :^) 2021-03-09 10:16:00 +03:00			`/*`
			`* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>`
			`*`
Everything: Move to SPDX license identifiers in all files. SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt * 2021-04-22 11:24:48 +03:00			`* SPDX-License-Identifier: BSD-2-Clause`
Kernel+UserspaceEmulator: Add sys$emuctl() system call This returns ENOSYS if you are running in the real kernel, and some other result if you are running in UserspaceEmulator. There are other ways we could check if we're inside an emulator, but it seemed easier to just ask. :^) 2021-03-09 10:16:00 +03:00			`*/`

			`#include <Kernel/Process.h>`

			`namespace Kernel {`

Kernel: Replace KResult and KResultOr<T> with Error and ErrorOr<T> We now use AK::Error and AK::ErrorOr<T> in both kernel and userspace! This was a slightly tedious refactoring that took a long time, so it's not unlikely that some bugs crept in. Nevertheless, it does pass basic functionality testing, and it's just real nice to finally see the same pattern in all contexts. :^) 2021-11-08 02:51:39 +03:00			`ErrorOr<FlatPtr> Process::sys$emuctl()`
Kernel+UserspaceEmulator: Add sys$emuctl() system call This returns ENOSYS if you are running in the real kernel, and some other result if you are running in UserspaceEmulator. There are other ways we could check if we're inside an emulator, but it seemed easier to just ask. :^) 2021-03-09 10:16:00 +03:00			`{`
Kernel: Annotate all syscalls with VERIFY_PROCESS_BIG_LOCK_ACQUIRED Before we start disabling acquisition of the big process lock for specific syscalls, make sure to document and assert that all the lock is held during all syscalls. 2021-07-18 21:20:12 +03:00			`VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this);`
Kernel+UserspaceEmulator: Add sys$emuctl() system call This returns ENOSYS if you are running in the real kernel, and some other result if you are running in UserspaceEmulator. There are other ways we could check if we're inside an emulator, but it seemed easier to just ask. :^) 2021-03-09 10:16:00 +03:00			`return ENOSYS;`
			`}`

			`}`