mirror of
https://github.com/LadybirdBrowser/ladybird.git
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106 lines
4 KiB
C++
106 lines
4 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/ByteBuffer.h>
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#include <AK/JsonObject.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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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::format("/proc/%s/vm", pid));
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if (!file->open(Core::IODevice::ReadOnly)) {
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fprintf(stderr, "Error: %s\n", file->error_string());
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return 1;
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}
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printf("%s:\n", pid);
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if (extended) {
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printf("Address Size Resident Dirty Access VMObject Type Purgeable CoW Pages Name\n");
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} else {
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printf("Address Size Access Name\n");
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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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ASSERT(json.has_value());
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json.value().as_array().for_each([](auto& value) {
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auto map = value.as_object();
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auto address = map.get("address").to_int();
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auto size = map.get("size").to_string();
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auto readable = map.get("readable").to_bool();
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auto writable = map.get("writable").to_bool();
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auto executable = map.get("executable").to_bool();
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auto access = String::format("%s%s%s", (readable ? "r" : "-"), (writable ? "w" : "-"), (executable ? "x" : "-"));
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printf("%08x ", address);
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printf("%-10s ", size.characters());
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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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auto purgeable = map.get("purgeable").to_string();
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auto cow_pages = map.get("cow_pages").to_string();
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printf("%-10s ", resident.characters());
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printf("%-10s ", dirty.characters());
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printf("%-6s ", access.characters());
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printf("%-22s ", vmobject.characters());
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printf("%-10s ", purgeable.characters());
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printf("%-12s ", cow_pages.characters());
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} else {
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printf("%-6s ", access.characters());
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}
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auto name = map.get("name").to_string();
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printf("%-20s ", name.characters());
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printf("\n");
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});
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return 0;
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}
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