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Utilities: Add an lscpu utility

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Undefine 2022-02-22 15:58:53 +01:00 committed by Linus Groh
parent 1b14840b48
commit 004e045adc
Notes: sideshowbarker 2024-07-17 17:22:53 +09:00 
Author: https://github.com/cqundefine
Commit: https://github.com/SerenityOS/serenity/commit/004e045adc
Pull-request: https://github.com/SerenityOS/serenity/pull/12726
Reviewed-by: https://github.com/guerinoni ✅
Reviewed-by: https://github.com/kleinesfilmroellchen ✅
Reviewed-by: https://github.com/linusg ✅
2 changed files with 52 additions and 0 deletions
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1
Userland/Utilities/CMakeLists.txt
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@ -126,6 +126,7 @@ target_link_libraries(less LibMain)
target_link_libraries(ln LibMain)
target_link_libraries(logout LibMain)
target_link_libraries(ls LibMain)
target_link_libraries(lscpu LibMain)
target_link_libraries(lsirq LibMain)
target_link_libraries(lsof LibMain)
target_link_libraries(lspci LibPCIDB LibMain)

51
Userland/Utilities/lscpu.cpp Normal file
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@ -0,0 +1,51 @@
/*
* Copyright (c) 2022, Undefine <undefine@undefine.pl>.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Format.h>
#include <AK/JsonArray.h>
#include <AK/JsonObject.h>
#include <LibCore/File.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
static void print_cpu_info(JsonObject const& value)
{
outln("CPU {}:", value.get("processor").as_u32());
outln("\tVendor ID: {}", value.get("cpuid").as_string());
outln("\tModel: {}", value.get("brand").as_string());
outln("\tFamily: {}", value.get("family").as_u32());
outln("\tModel: {}", value.get("model").as_u32());
outln("\tStepping: {}", value.get("stepping").as_u32());
outln("\tType: {}", value.get("type").as_u32());
out("\tFeatures: ");
auto& features = value.get("features").as_array();
for (auto const& feature : features.values())
out("{} ", feature.as_string());
outln();
}
ErrorOr<int> serenity_main(Main::Arguments)
{
TRY(Core::System::pledge("stdio rpath"));
TRY(Core::System::unveil("/proc/cpuinfo", "r"));
TRY(Core::System::unveil(nullptr, nullptr));
auto file = TRY(Core::File::open("/proc/cpuinfo", Core::OpenMode::ReadOnly));
auto json = TRY(JsonValue::from_string(file->read_all()));
auto& array = json.as_array();
for (size_t i = 0; i < array.size(); i++) {
print_cpu_info(array.at(i).as_object());
if (i != array.size() - 1)
outln();
}
return 0;
}