ladybird/Kernel/Syscalls/uname.cpp
Sönke Holz da88d766b2 Kernel/riscv64: Make the kernel compile
This commits inserts TODOs into all necessary places to make the kernel
compile on riscv64!
2023-11-10 15:51:31 -07:00

56 lines
1.7 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, kleines Filmröllchen <filmroellchen@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/TypedTransfer.h>
#include <Kernel/Tasks/Process.h>
#include <Kernel/Version.h>
namespace Kernel {
#if ARCH(X86_64)
# define UNAME_MACHINE "x86_64"
#elif ARCH(AARCH64)
# define UNAME_MACHINE "AArch64"
#elif ARCH(RISCV64)
# define UNAME_MACHINE "riscv64"
#else
# error Unknown architecture
#endif
KString* g_version_string { nullptr };
ErrorOr<FlatPtr> Process::sys$uname(Userspace<utsname*> user_buf)
{
VERIFY_NO_PROCESS_BIG_LOCK(this);
TRY(require_promise(Pledge::stdio));
utsname buf {
"SerenityOS",
{}, // Hostname, filled in below.
{}, // "Release" (1.0-dev), filled in below.
{}, // "Revision" (git commit hash), filled in below.
UNAME_MACHINE
};
VERIFY(g_version_string);
AK::TypedTransfer<u8>::copy(reinterpret_cast<u8*>(buf.release), g_version_string->bytes().data(), min(g_version_string->length(), UTSNAME_ENTRY_LEN - 1));
AK::TypedTransfer<u8>::copy(reinterpret_cast<u8*>(buf.version), SERENITY_VERSION.bytes().data(), min(SERENITY_VERSION.length(), UTSNAME_ENTRY_LEN - 1));
hostname().with_shared([&](auto const& name) {
auto name_length = name.representable_view().length();
VERIFY(name_length <= (UTSNAME_ENTRY_LEN - 1));
AK::TypedTransfer<char>::copy(reinterpret_cast<char*>(buf.nodename), name.representable_view().characters_without_null_termination(), name_length);
buf.nodename[name_length] = '\0';
});
TRY(copy_to_user(user_buf, &buf));
return 0;
}
}