mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 14:22:43 +00:00
104 lines
3.1 KiB
C++
104 lines
3.1 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Assertions.h>
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#include <AK/JsonObject.h>
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#include <AK/QuickSort.h>
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#include <AK/String.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/File.h>
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#include <stdio.h>
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#include <unistd.h>
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int main(int argc, char** argv)
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{
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if (pledge("stdio rpath", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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if (unveil("/proc", "r") < 0) {
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perror("unveil");
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return 1;
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}
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unveil(nullptr, nullptr);
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const char* pid;
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static bool extended = false;
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Core::ArgsParser args_parser;
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args_parser.add_option(extended, "Extended output", nullptr, 'x');
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args_parser.add_positional_argument(pid, "PID", "PID", Core::ArgsParser::Required::Yes);
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args_parser.parse(argc, argv);
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auto file = Core::File::construct(String::formatted("/proc/{}/vm", pid));
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if (!file->open(Core::OpenMode::ReadOnly)) {
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warnln("Failed to open {}: {}", file->name(), file->error_string());
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return 1;
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}
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outln("{}:", pid);
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#if ARCH(I386)
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auto padding = "";
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#else
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auto padding = " ";
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#endif
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if (extended) {
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outln("Address{} Size Resident Dirty Access VMObject Type Purgeable CoW Pages Name", padding);
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} else {
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outln("Address{} Size Access Name", padding);
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}
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auto file_contents = file->read_all();
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auto json = JsonValue::from_string(file_contents);
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VERIFY(json.has_value());
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Vector<JsonValue> sorted_regions = json.value().as_array().values();
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quick_sort(sorted_regions, [](auto& a, auto& b) {
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return a.as_object().get("address").to_addr() < b.as_object().get("address").to_addr();
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});
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for (auto& value : sorted_regions) {
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auto& map = value.as_object();
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auto address = map.get("address").to_addr();
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auto size = map.get("size").to_string();
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auto access = String::formatted("{}{}{}{}{}",
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(map.get("readable").to_bool() ? "r" : "-"),
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(map.get("writable").to_bool() ? "w" : "-"),
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(map.get("executable").to_bool() ? "x" : "-"),
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(map.get("shared").to_bool() ? "s" : "-"),
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(map.get("syscall").to_bool() ? "c" : "-"));
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out("{:p} ", address);
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out("{:>10} ", size);
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if (extended) {
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auto resident = map.get("amount_resident").to_string();
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auto dirty = map.get("amount_dirty").to_string();
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auto vmobject = map.get("vmobject").to_string();
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if (vmobject.ends_with("VMObject"))
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vmobject = vmobject.substring(0, vmobject.length() - 8);
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auto purgeable = map.get("purgeable").to_string();
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auto cow_pages = map.get("cow_pages").to_string();
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out("{:>10} ", resident);
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out("{:>10} ", dirty);
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out("{:6} ", access);
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out("{:14} ", vmobject);
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out("{:10} ", purgeable);
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out("{:>10} ", cow_pages);
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} else {
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out("{:6} ", access);
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}
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auto name = map.get("name").to_string();
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out("{:20}", name);
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outln();
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}
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return 0;
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}
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