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Kernel: Read version and git commit hash from baked-in version info

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... instead of hard-coding it in the uname syscall.
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kleines Filmröllchen 2022-08-29 13:57:14 +02:00 committed by Linus Groh
parent 7e11b9a276
commit 4c7eef874d
Notes: sideshowbarker 2024-07-17 06:51:10 +09:00 
Author: https://github.com/kleinesfilmroellchen
Commit: https://github.com/SerenityOS/serenity/commit/4c7eef874d
Pull-request: https://github.com/SerenityOS/serenity/pull/15068
Issue: https://github.com/SerenityOS/serenity/issues/15071
Reviewed-by: https://github.com/ADKaster
Reviewed-by: https://github.com/Hendiadyoin1
Reviewed-by: https://github.com/gmta
Reviewed-by: https://github.com/linusg
1 changed files with 18 additions and 7 deletions
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25
Kernel/Syscalls/uname.cpp
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@ -1,10 +1,13 @@
/*
* 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/Process.h>
#include <Kernel/Version.h>
namespace Kernel {
@ -13,19 +16,27 @@ ErrorOr<FlatPtr> Process::sys$uname(Userspace<utsname*> user_buf)
VERIFY_NO_PROCESS_BIG_LOCK(this);
TRY(require_promise(Pledge::stdio));
utsname buf {};
memcpy(buf.sysname, "SerenityOS", 11);
memcpy(buf.release, "1.0-dev", 8);
memcpy(buf.version, "FIXME", 6);
utsname buf
{
"SerenityOS",
{}, // Hostname, filled in below.
{}, // "Release" (1.0-dev), filled in below.
{}, // "Revision" (git commit hash), filled in below.
#if ARCH(I386)
memcpy(buf.machine, "i686", 5);
"i686",
#elif ARCH(X86_64)
memcpy(buf.machine, "x86_64", 7);
"x86_64",
#elif ARCH(AARCH64)
memcpy(buf.machine, "AArch64", 7);
"AArch64",
#else
# error Unknown architecture
#endif
};
auto version_string = TRY(KString::formatted("{}.{}-dev", SERENITY_MAJOR_REVISION, SERENITY_MINOR_REVISION));
AK::TypedTransfer<u8>::copy(reinterpret_cast<u8*>(buf.release), version_string->bytes().data(), min(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 length = min(name->length(), UTSNAME_ENTRY_LEN - 1);