mirror of
https://github.com/SerenityOS/serenity
synced 2024-07-05 22:54:55 +00:00
bb2d80a2bb
With Ladybird now being its own repository, there's little reason to keep the Ladybird Android port in the SerenityOS repository. (The Qt port is useful to be able to test changes to LibWeb in lagom so it'll stay around. Similar for the AppKit port, since getting Qt on macOS is a bit annoying. But if the AppKit port is too much pain to keep working, we should toss that too. Eventually, the lagom browser ports should move out from Ladybird/ to Meta/Lagom/Contrib, but for now it might make sense to leave them where they are to keep cherry-picks from ladybird easier.)
105 lines
3.1 KiB
C++
105 lines
3.1 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@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/Assertions.h>
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#include <AK/Format.h>
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#include <AK/Platform.h>
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#include <AK/StringBuilder.h>
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#include <AK/StringView.h>
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#if defined(AK_OS_LINUX) || defined(AK_LIBC_GLIBC) || defined(AK_OS_BSD_GENERIC) || defined(AK_OS_SOLARIS) || defined(AK_OS_HAIKU)
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# define EXECINFO_BACKTRACE
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#endif
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#define PRINT_ERROR(s) (void)fputs((s), stderr)
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#if defined(EXECINFO_BACKTRACE)
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# include <cxxabi.h>
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# include <execinfo.h>
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#endif
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#if defined(AK_OS_SERENITY)
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# define ERRORLN dbgln
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#else
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# define ERRORLN warnln
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#endif
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#if !defined(KERNEL)
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# if defined(EXECINFO_BACKTRACE)
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namespace {
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ALWAYS_INLINE void dump_backtrace()
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{
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// Grab symbols and dso name for up to 256 frames
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void* trace[256] = {};
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int const num_frames = backtrace(trace, array_size(trace));
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char** syms = backtrace_symbols(trace, num_frames);
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for (auto i = 0; i < num_frames; ++i) {
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// If there is a C++ symbol name in the line of the backtrace, demangle it
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StringView sym(syms[i], strlen(syms[i]));
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StringBuilder error_builder;
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if (auto idx = sym.find("_Z"sv); idx.has_value()) {
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// Play C games with the original string so we can print before and after the mangled symbol with a C API
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// We don't want to call dbgln() here on substring StringView because we might VERIFY() within AK::Format
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syms[i][idx.value() - 1] = '\0';
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error_builder.append(syms[i], strlen(syms[i]));
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error_builder.append(' ');
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auto sym_substring = sym.substring_view(idx.value());
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auto end_of_sym = sym_substring.find_any_of("+ "sv).value_or(sym_substring.length() - 1);
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syms[i][idx.value() + end_of_sym] = '\0';
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size_t buf_size = 128u;
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char* buf = static_cast<char*>(malloc(buf_size));
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auto* raw_str = &syms[i][idx.value()];
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buf = abi::__cxa_demangle(raw_str, buf, &buf_size, nullptr);
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auto* buf_to_print = buf ? buf : raw_str;
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error_builder.append(buf_to_print, strlen(buf_to_print));
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free(buf);
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error_builder.append(' ');
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auto* end_of_line = &syms[i][idx.value() + end_of_sym + 1];
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error_builder.append(end_of_line, strlen(end_of_line));
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} else {
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error_builder.append(sym);
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}
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error_builder.append('\n');
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error_builder.append('\0');
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PRINT_ERROR(error_builder.string_view().characters_without_null_termination());
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}
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free(syms);
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}
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}
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# endif
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extern "C" {
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void ak_verification_failed(char const* message)
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{
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# if defined(AK_OS_SERENITY)
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bool colorize_output = true;
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# elif defined(AK_OS_WINDOWS)
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bool colorize_output = false;
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# else
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bool colorize_output = isatty(STDERR_FILENO) == 1;
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# endif
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if (colorize_output)
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ERRORLN("\033[31;1mVERIFICATION FAILED\033[0m: {}", message);
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else
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ERRORLN("VERIFICATION FAILED: {}", message);
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# if defined(EXECINFO_BACKTRACE)
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dump_backtrace();
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# endif
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__builtin_trap();
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}
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}
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#endif
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