terminate_handler.cpp
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#include "crucible/boot/terminate_handler.hpp"
#include "crucible/core/arrays.hpp"
#include "crucible/core/backtrace.hpp"
#include "crucible/core/format.hpp"
namespace crucible::boot::terminate_handler
{
[[noreturn]] auto abort_with_detailed_backtrace(core::arrays::DynamicArray<core::backtrace::DetailedStackFrame> const &frames) -> void
{
auto print_detailed_stack_frame {
[i = 0](core::backtrace::DetailedStackFrame const &frame) mutable -> void {
std::cerr << "• #" << i << ": " << frame.describe() << "\n";
++i;
}
};
std::cerr
<< "Full backtrace of the calling thread:\n"
<< "─────────────────────────────────────\n";
frames
.iterate()
.for_each_do(print_detailed_stack_frame);
std::cerr << "\n";
std::abort();
}
auto print_failed_detailed_backtrace(core::backtrace::Error const &error) -> void
{
std::cerr
<< "Failed to get full backtrace of the calling thread:\n"
<< "───────────────────────────────────────────────────\n"
<< "• " << error.describe() << "\n"
<< "\n";
}
[[noreturn]] auto abort_with_simple_backtrace(core::arrays::DynamicArray<core::backtrace::SimpleStackFrame> const &frames) -> void
{
auto print_simple_stack_frame {
[i = 0](core::backtrace::SimpleStackFrame const &frame) mutable -> void {
std::cerr << "• #" << i << ": " << frame.describe() << "\n";
++i;
}
};
std::cerr
<< "Simple backtrace of the calling thread:\n"
<< "───────────────────────────────────────\n";
frames
.iterate()
.for_each_do(print_simple_stack_frame);
std::cerr << "\n";
std::abort();
}
auto print_failed_simple_backtrace(core::backtrace::Error const &error) -> void
{
std::cerr
<< "Failed to get simple backtrace of the calling thread:\n"
<< "─────────────────────────────────────────────────────\n"
<< "• " << error.describe() << "\n"
<< "\n";
}
auto handle_terminate() -> void
{
std::cerr
<<"\n"
<< "╭────────────────────────────────────────────────────────────╮\n"
<< "│ std::terminate() called (this is a crash!) │\n"
<< "│ │\n"
<< "│ Here's all the information I could find about the problem: │\n"
<< "╰────────────────────────────────────────────────────────────╯\n"
<< "\n";
auto const exception { std::current_exception() };
try {
if (exception) {
std::rethrow_exception(exception);
}
std::cerr
<< "No std::exception objects are currently being thrown in the calling thread\n"
<< "──────────────────────────────────────────────────────────────────────────\n"
<< "\n";
} catch (std::exception const &e) {
std::cerr
<< "Uncaught std::exception object in the calling thread:\n"
<< "─────────────────────────────────────────────────────\n"
<< "• typeid(): " << core::format::format_std_type_info(typeid(e)) << "\n"
<< "• what(): " << e.what() << "\n"
<< "\n";
}
// `abort_with_detailed_backtrace()` will exit if we end up calling it
auto const detailed_backtrace { core::backtrace::take_detailed_snapshot() };
detailed_backtrace.resolve(print_failed_detailed_backtrace, abort_with_detailed_backtrace);
// `abort_with_simple_backtrace()` will exit if we end up calling it
auto const simple_backtrace { core::backtrace::take_simple_snapshot() };
simple_backtrace.resolve(print_failed_simple_backtrace, abort_with_simple_backtrace);
// If we failed both backtraces, just give up
std::abort();
}
}