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e2e7c4d574
In a bunch of cases, this actually ends up simplifying the code as
to_number will handle something such as:
```
Optional<I> opt;
if constexpr (IsSigned<I>)
opt = view.to_int<I>();
else
opt = view.to_uint<I>();
```
For us.
The main goal here however is to have a single generic number conversion
API between all of the String classes.
82 lines
3.1 KiB
C++
82 lines
3.1 KiB
C++
/*
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* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, Kenneth Myhra <kennethmyhra@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/LexicalPath.h>
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#include <AK/URL.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/DirIterator.h>
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#include <LibCore/EventLoop.h>
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#include <LibCore/System.h>
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#include <LibMain/Main.h>
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#include <LibSymbolication/Symbolication.h>
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#include <unistd.h>
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ErrorOr<int> serenity_main(Main::Arguments arguments)
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{
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TRY(Core::System::pledge("stdio rpath"));
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auto hostname = TRY(Core::System::gethostname());
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Core::ArgsParser args_parser;
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pid_t pid = 0;
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args_parser.add_positional_argument(pid, "PID", "pid");
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args_parser.parse(arguments);
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Core::EventLoop loop;
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Core::DirIterator iterator(ByteString::formatted("/proc/{}/stacks", pid), Core::DirIterator::SkipDots);
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if (iterator.has_error()) {
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warnln("Error: pid '{}' doesn't appear to exist.", pid);
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return 1;
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}
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while (iterator.has_next()) {
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pid_t tid = iterator.next_path().to_number<pid_t>().value();
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outln("thread: {}", tid);
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outln("frames:");
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auto symbols = Symbolication::symbolicate_thread(pid, tid);
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auto frame_number = symbols.size() - 1;
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for (auto& symbol : symbols) {
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// Make kernel stack frames stand out.
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auto maybe_kernel_base = Symbolication::kernel_base();
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int color = maybe_kernel_base.has_value() && symbol.address < maybe_kernel_base.value() ? 35 : 31;
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out("{:3}: \033[{};1m{:p}\033[0m | ", frame_number, color, symbol.address);
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if (!symbol.name.is_empty())
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out("{} ", symbol.name);
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if (!symbol.source_positions.is_empty()) {
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out("(");
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for (size_t i = 0; i < symbol.source_positions.size(); i++) {
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auto& source_position = symbol.source_positions[i];
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bool linked = false;
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// See if we can find the sources in /usr/src
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// FIXME: I'm sure this can be improved!
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auto full_path = LexicalPath::canonicalized_path(ByteString::formatted("/usr/src/serenity/dummy/dummy/{}", source_position.file_path));
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if (access(full_path.characters(), F_OK) == 0) {
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linked = true;
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auto url = URL::create_with_file_scheme(full_path, {}, hostname);
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url.set_query(TRY(String::formatted("line_number={}", source_position.line_number)));
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out("\033]8;;{}\033\\", url.serialize());
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}
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out("\033[34;1m{}:{}\033[0m", LexicalPath::basename(source_position.file_path), source_position.line_number);
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if (linked)
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out("\033]8;;\033\\");
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if (i != symbol.source_positions.size() - 1)
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out(" => ");
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}
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out(")");
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}
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outln("");
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frame_number--;
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}
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outln("");
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}
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return 0;
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}
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