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/*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Kenneth Myhra <kennethmyhra@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/LexicalPath.h>
#include <AK/URL.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/DirIterator.h>
#include <LibCore/EventLoop.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <LibSymbolication/Symbolication.h>
#include <unistd.h>
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
TRY(Core::System::pledge("stdio rpath"));
auto hostname = TRY(Core::System::gethostname());
Core::ArgsParser args_parser;
pid_t pid = 0;
args_parser.add_positional_argument(pid, "PID", "pid");
args_parser.parse(arguments);
Core::EventLoop loop;
Core::DirIterator iterator(String::formatted("/proc/{}/stacks", pid), Core::DirIterator::SkipDots);
if (iterator.has_error()) {
warnln("Error: pid '{}' doesn't appear to exist.", pid);
return 1;
}
while (iterator.has_next()) {
pid_t tid = iterator.next_path().to_int().value();
outln("thread: {}", tid);
outln("frames:");
auto symbols = Symbolication::symbolicate_thread(pid, tid);
auto frame_number = symbols.size() - 1;
for (auto& symbol : symbols) {
// Make kernel stack frames stand out.
auto maybe_kernel_base = Symbolication::kernel_base();
int color = maybe_kernel_base.has_value() && symbol.address < maybe_kernel_base.value() ? 35 : 31;
out("{:3}: \033[{};1m{:p}\033[0m | ", frame_number, color, symbol.address);
if (!symbol.name.is_empty())
out("{} ", symbol.name);
if (!symbol.source_positions.is_empty()) {
out("(");
for (size_t i = 0; i < symbol.source_positions.size(); i++) {
auto& source_position = symbol.source_positions[i];
bool linked = false;
// See if we can find the sources in /usr/src
// FIXME: I'm sure this can be improved!
auto full_path = LexicalPath::canonicalized_path(String::formatted("/usr/src/serenity/dummy/dummy/{}", source_position.file_path));
if (access(full_path.characters(), F_OK) == 0) {
linked = true;
auto url = URL::create_with_file_scheme(full_path, {}, hostname);
url.set_query(String::formatted("line_number={}", source_position.line_number));
out("\033]8;;{}\033\\", url.serialize());
}
out("\033[34;1m{}:{}\033[0m", LexicalPath::basename(source_position.file_path), source_position.line_number);
if (linked)
out("\033]8;;\033\\");
if (i != symbol.source_positions.size() - 1)
out(" => ");
}
out(")");
}
outln("");
frame_number--;
}
outln("");
}
return 0;
}
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