ladybird/Userland/Utilities/bt.cpp
Andreas Kling 5bb35da784 bt: Hyperlink filenames in backtraces if available :^)
If we can find a matching filename in /usr/src/serenity, let's make the
filenames in backtraces clickable to open that file.
2021-02-05 00:56:00 +01:00

107 lines
3.4 KiB
C++

/*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
* 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/LexicalPath.h>
#include <AK/LogStream.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/EventLoop.h>
#include <LibCore/File.h>
#include <LibSymbolClient/Client.h>
int main(int argc, char** argv)
{
if (pledge("stdio rpath unix fattr", nullptr) < 0) {
perror("pledge");
return 1;
}
if (unveil("/proc", "r") < 0) {
perror("unveil");
return 1;
}
if (unveil("/tmp/rpc", "crw") < 0) {
perror("unveil");
return 1;
}
if (unveil("/tmp/portal/symbol", "rw") < 0) {
perror("unveil");
return 1;
}
if (unveil("/usr/src", "b") < 0) {
perror("unveil");
return 1;
}
if (unveil(nullptr, nullptr) < 0) {
perror("unveil");
return 1;
}
char hostname[256];
if (gethostname(hostname, sizeof(hostname)) < 0) {
perror("gethostname");
return 1;
}
Core::ArgsParser args_parser;
pid_t pid = 0;
args_parser.add_positional_argument(pid, "PID", "pid");
args_parser.parse(argc, argv);
Core::EventLoop loop;
// FIXME: Support multiple threads in the same process!
auto symbols = SymbolClient::symbolicate_thread(pid, pid);
for (auto& symbol : symbols) {
out("{:p} ", symbol.address);
if (!symbol.name.is_empty())
out("{} ", symbol.name);
if (!symbol.filename.is_empty()) {
bool linked = false;
out("(");
// 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/{}", symbol.filename));
if (access(full_path.characters(), F_OK) == 0) {
linked = true;
out("\033]8;;file://{}{}\033\\", hostname, full_path);
}
out("\033[34;1m{}\033[0m:{}", LexicalPath(symbol.filename).basename(), symbol.line_number);
if (linked)
out("\033]8;;\033\\");
out(")");
}
outln("");
}
return 0;
}