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// file : libbutl/backtrace.mxx -*- C++ -*-
// copyright : Copyright (c) 2014-2019 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#ifndef __cpp_modules_ts
#pragma once
#endif
// C includes.
#ifndef __cpp_lib_modules_ts
#include <string>
#endif
// Other includes.
#ifdef __cpp_modules_ts
export module butl.backtrace;
#ifdef __cpp_lib_modules_ts
import std.core;
#endif
#endif
#include <libbutl/export.hxx>
LIBBUTL_MODEXPORT namespace butl
{
// Return the calling thread's backtrace or empty string if this
// functionality is not supported or an error has occurred. The exact
// backtrace format is implementation-defined; it normally contains a line
// with the binary name, address in that binary, and, if available, the
// function name for each stack frame.
//
// Currently this functionality is only available on Linux (with glibc),
// FreeBSD, and Mac OS. On the first two platforms the address can be mapped
// to the function name and, if built with debug info, to source location
// using the addr2line(1) utility:
//
// $ addr2line -f -C -e <binary> <addr>
//
LIBBUTL_SYMEXPORT std::string
backtrace () noexcept;
}
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