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/*
* Copyright (c) 2020, the SerenityOS developers.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/ByteBuffer.h>
#include <AK/JsonObject.h>
#include <AK/QuickSort.h>
#include <AK/String.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/File.h>
#include <stdio.h>
#include <unistd.h>
int main(int argc, char** argv)
{
if (pledge("stdio rpath", nullptr) < 0) {
perror("pledge");
return 1;
}
if (unveil("/proc", "r") < 0) {
perror("unveil");
return 1;
}
unveil(nullptr, nullptr);
const char* pid;
static bool extended = false;
Core::ArgsParser args_parser;
args_parser.add_option(extended, "Extended output", nullptr, 'x');
args_parser.add_positional_argument(pid, "PID", "PID", Core::ArgsParser::Required::Yes);
args_parser.parse(argc, argv);
auto file = Core::File::construct(String::formatted("/proc/{}/vm", pid));
if (!file->open(Core::IODevice::ReadOnly)) {
fprintf(stderr, "Error: %s\n", file->error_string());
return 1;
}
printf("%s:\n", pid);
if (extended) {
printf("Address Size Resident Dirty Access VMObject Type Purgeable CoW Pages Name\n");
} else {
printf("Address Size Access Name\n");
}
auto file_contents = file->read_all();
auto json = JsonValue::from_string(file_contents);
VERIFY(json.has_value());
Vector<JsonValue> sorted_regions = json.value().as_array().values();
quick_sort(sorted_regions, [](auto& a, auto& b) {
return a.as_object().get("address").to_u32() < b.as_object().get("address").to_u32();
});
for (auto& value : sorted_regions) {
auto map = value.as_object();
auto address = map.get("address").to_int();
auto size = map.get("size").to_string();
auto access = String::formatted("{}{}{}{}{}",
(map.get("readable").to_bool() ? "r" : "-"),
(map.get("writable").to_bool() ? "w" : "-"),
(map.get("executable").to_bool() ? "x" : "-"),
(map.get("shared").to_bool() ? "s" : "-"),
(map.get("syscall").to_bool() ? "c" : "-"));
printf("%08x ", address);
printf("%10s ", size.characters());
if (extended) {
auto resident = map.get("amount_resident").to_string();
auto dirty = map.get("amount_dirty").to_string();
auto vmobject = map.get("vmobject").to_string();
if (vmobject.ends_with("VMObject"))
vmobject = vmobject.substring(0, vmobject.length() - 8);
auto purgeable = map.get("purgeable").to_string();
auto cow_pages = map.get("cow_pages").to_string();
printf("%10s ", resident.characters());
printf("%10s ", dirty.characters());
printf("%-6s ", access.characters());
printf("%-14s ", vmobject.characters());
printf("%-10s ", purgeable.characters());
printf("%10s ", cow_pages.characters());
} else {
printf("%-6s ", access.characters());
}
auto name = map.get("name").to_string();
printf("%-20s", name.characters());
printf("\n");
}
return 0;
}
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