Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

30 files changed, 1984 insertions, 0 deletions

diff --git a/src/boost/libs/stacktrace/README.md b/src/boost/libs/stacktrace/README.md
new file mode 100644
index 000000000..a80427aab
--- /dev/null
+++ b/src/boost/libs/stacktrace/README.md
@@ -0,0 +1,15 @@
+### Stacktrace
+Library for storing and printing backtraces.
+
+[Documentation and examples.](http://boostorg.github.io/stacktrace/index.html)
+
+
+### Test results
+@               | Build         | Tests coverage | More info
+----------------|-------------- | -------------- |-----------
+Develop branch:  | [![Build Status](https://travis-ci.org/boostorg/stacktrace.svg?branch=develop)](https://travis-ci.org/boostorg/stacktrace) [![Build status](https://ci.appveyor.com/api/projects/status/l3aak4j8k39rx08t/branch/develop?svg=true)](https://ci.appveyor.com/project/apolukhin/stacktrace/branch/develop) | [![Coverage Status](https://coveralls.io/repos/github/boostorg/stacktrace/badge.svg?branch=develop)](https://coveralls.io/github/boostorg/stacktrace?branch=develop) | [details...](http://www.boost.org/development/tests/develop/developer/stacktrace.html)
+Master branch:  | [![Build Status](https://travis-ci.org/boostorg/stacktrace.svg?branch=master)](https://travis-ci.org/boostorg/stacktrace) [![Build status](https://ci.appveyor.com/api/projects/status/l3aak4j8k39rx08t/branch/master?svg=true)](https://ci.appveyor.com/project/apolukhin/stacktrace/branch/master) | [![Coverage Status](https://coveralls.io/repos/github/boostorg/stacktrace/badge.svg?branch=master)](https://coveralls.io/github/boostorg/stacktrace?branch=master) | [details...](http://www.boost.org/development/tests/master/developer/stacktrace.html)
+
+
+### License
+Distributed under the [Boost Software License, Version 1.0](http://boost.org/LICENSE_1_0.txt).
diff --git a/src/boost/libs/stacktrace/build/Jamfile.v2 b/src/boost/libs/stacktrace/build/Jamfile.v2
new file mode 100644
index 000000000..6d6d85a9b
--- /dev/null
+++ b/src/boost/libs/stacktrace/build/Jamfile.v2
@@ -0,0 +1,145 @@
+#  Copyright (C) 2016-2019, Antony Polukhin.
+#
+# Use, modification and distribution is subject to the Boost Software License,
+# Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+# http://www.boost.org/LICENSE_1_0.txt)
+#
+
+project
+  : source-location .
+  : requirements
+    <visibility>hidden
+  ;
+
+lib dl ;
+lib gcc_s ;
+lib Dbgeng ;
+lib ole32 ;
+
+
+local LIBBACKTRACE_PATH = [ modules.peek : LIBBACKTRACE_PATH ] ;
+lib backtrace
+  : 
+  : <search>$(LIBBACKTRACE_PATH)/lib <link>static
+  :
+  : <include>$(LIBBACKTRACE_PATH)/include 
+  ;
+
+actions mp_simple_run_action
+{
+      $(>) > $(<)
+}
+
+rule mp-run-simple ( sources + : args * : input-files * : requirements * : target-name )
+{
+   exe $(target-name)_exe : $(sources) : $(requirements) ;
+   explicit $(target-name)_exe ;
+   make $(target-name).output : $(target-name)_exe : @mp_simple_run_action ;
+   explicit $(target-name).output ;
+   alias $(target-name) : $(target-name).output ;
+}
+
+mp-run-simple has_backtrace.cpp : : : <library>backtrace : libbacktrace ;
+explicit libbacktrace ;
+
+mp-run-simple has_addr2line.cpp : : : : addr2line ;
+explicit addr2line ;
+
+mp-run-simple has_windbg.cpp : : : <library>Dbgeng <library>ole32 : WinDbg ;
+explicit WinDbg ;
+
+mp-run-simple has_windbg_cached.cpp : : : <library>Dbgeng <library>ole32 : WinDbgCached ;
+explicit WinDbgCached ;
+
+local libraries ;
+
+lib boost_stacktrace_noop
+  : # sources
+    ../src/noop.cpp
+  : # requirements
+    <warnings>all
+    <link>shared:<define>BOOST_STACKTRACE_DYN_LINK=1
+  : # default build
+  : # usage-requirements
+    #<link>shared:<define>BOOST_STACKTRACE_DYN_LINK=1
+  ;
+
+libraries += boost_stacktrace_noop ;
+
+lib boost_stacktrace_backtrace
+  : # sources
+    ../src/backtrace.cpp
+  : # requirements
+    <warnings>all
+    <target-os>linux:<library>dl
+    <library>backtrace
+    <link>shared:<define>BOOST_STACKTRACE_DYN_LINK=1
+    [ check-target-builds ../build//libbacktrace : : <build>no ]
+  : # default build
+  : # usage-requirements
+    #<link>shared:<define>BOOST_STACKTRACE_DYN_LINK=1
+  ;
+
+libraries += boost_stacktrace_backtrace ;
+
+lib boost_stacktrace_addr2line
+  : # sources
+    ../src/addr2line.cpp
+  : # requirements
+    <warnings>all
+    <target-os>linux:<library>dl
+    <link>shared:<define>BOOST_STACKTRACE_DYN_LINK=1
+    [ check-target-builds ../build//addr2line : : <build>no ]
+  : # default build
+  : # usage-requirements
+    #<link>shared:<define>BOOST_STACKTRACE_DYN_LINK=1
+  ;
+
+libraries += boost_stacktrace_addr2line ;
+
+lib boost_stacktrace_basic
+  : # sources
+    ../src/basic.cpp
+  : # requirements
+    <warnings>all
+    <target-os>linux:<library>dl
+    <link>shared:<define>BOOST_STACKTRACE_DYN_LINK=1
+    [ check-target-builds ../build//WinDbg : <build>no ]
+  : # default build
+  : # usage-requirements
+    #<link>shared:<define>BOOST_STACKTRACE_DYN_LINK=1
+  ;
+
+libraries += boost_stacktrace_basic ;
+
+lib boost_stacktrace_windbg
+  : # sources
+    ../src/windbg.cpp
+  : # requirements
+    <warnings>all
+    <library>Dbgeng <library>ole32
+    <link>shared:<define>BOOST_STACKTRACE_DYN_LINK=1
+    [ check-target-builds ../build//WinDbg : : <build>no ]
+  : # default build
+  : # usage-requirements
+    #<link>shared:<define>BOOST_STACKTRACE_DYN_LINK=1
+  ;
+
+libraries += boost_stacktrace_windbg ;
+
+lib boost_stacktrace_windbg_cached
+  : # sources
+    ../src/windbg_cached.cpp
+  : # requirements
+    <warnings>all
+    <library>Dbgeng <library>ole32
+    <link>shared:<define>BOOST_STACKTRACE_DYN_LINK=1
+    [ check-target-builds ../build//WinDbgCached : : <build>no ]
+  : # default build
+  : # usage-requirements
+    #<link>shared:<define>BOOST_STACKTRACE_DYN_LINK=1
+  ;
+
+libraries += boost_stacktrace_windbg_cached ;
+
+boost-install $(libraries) ;
diff --git a/src/boost/libs/stacktrace/build/has_addr2line.cpp b/src/boost/libs/stacktrace/build/has_addr2line.cpp
new file mode 100644
index 000000000..763515d5f
--- /dev/null
+++ b/src/boost/libs/stacktrace/build/has_addr2line.cpp
@@ -0,0 +1,25 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include <cstdlib>
+#include <string>
+
+#include <boost/config.hpp>
+#include <unwind.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+int main() {
+
+#ifdef BOOST_STACKTRACE_ADDR2LINE_LOCATION
+    std::string s = BOOST_STRINGIZE( BOOST_STACKTRACE_ADDR2LINE_LOCATION );
+    s += " -h";
+#else
+    std::string s = "/usr/bin/addr2line -h";
+#endif
+
+    return std::system(s.c_str());
+}
diff --git a/src/boost/libs/stacktrace/build/has_backtrace.cpp b/src/boost/libs/stacktrace/build/has_backtrace.cpp
new file mode 100644
index 000000000..68664dd95
--- /dev/null
+++ b/src/boost/libs/stacktrace/build/has_backtrace.cpp
@@ -0,0 +1,15 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include <backtrace.h>
+#include <unwind.h>
+
+int main() {
+    backtrace_state* state = backtrace_create_state(
+        0, 1, 0, 0
+    );
+    (void)state;
+}
diff --git a/src/boost/libs/stacktrace/build/has_windbg.cpp b/src/boost/libs/stacktrace/build/has_windbg.cpp
new file mode 100644
index 000000000..da016482c
--- /dev/null
+++ b/src/boost/libs/stacktrace/build/has_windbg.cpp
@@ -0,0 +1,13 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include <cstring>
+#include <windows.h>
+#include "dbgeng.h"
+
+int main() {
+    ::CoInitializeEx(0, COINIT_MULTITHREADED);
+}
diff --git a/src/boost/libs/stacktrace/build/has_windbg_cached.cpp b/src/boost/libs/stacktrace/build/has_windbg_cached.cpp
new file mode 100644
index 000000000..163ce98e7
--- /dev/null
+++ b/src/boost/libs/stacktrace/build/has_windbg_cached.cpp
@@ -0,0 +1,28 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/config.hpp>
+
+#include <string>
+#include <cstring>
+#include <windows.h>
+#include "dbgeng.h"
+
+#ifdef BOOST_NO_CXX11_THREAD_LOCAL
+#   error Your compiler does not support C++11 thread_local storage. It`s impossible to build with BOOST_STACKTRACE_USE_WINDBG_CACHED.
+#endif
+
+int foo() {
+    static thread_local std::string i = std::string();
+    
+    return static_cast<int>(i.size());
+}
+
+int main() {
+    ::CoInitializeEx(0, COINIT_MULTITHREADED);
+    
+    return foo();
+}
diff --git a/src/boost/libs/stacktrace/example/assert_handler.cpp b/src/boost/libs/stacktrace/example/assert_handler.cpp
new file mode 100644
index 000000000..63a056260
--- /dev/null
+++ b/src/boost/libs/stacktrace/example/assert_handler.cpp
@@ -0,0 +1,55 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#define BOOST_ENABLE_ASSERT_HANDLER
+
+#include <cstdlib> // std::exit
+#include <boost/array.hpp>
+BOOST_NOINLINE void foo(int i);
+BOOST_NOINLINE void bar(int i);
+ 
+BOOST_NOINLINE void bar(int i) {
+    boost::array<int, 5> a = {{101, 100, 123, 23, 32}};
+    if (i >= 0) {
+        foo(a[i]);
+    } else {
+        std::exit(1);
+    }
+}
+
+BOOST_NOINLINE void foo(int i) {
+    bar(--i);
+}
+
+//[getting_started_assert_handlers
+
+// BOOST_ENABLE_ASSERT_DEBUG_HANDLER is defined for the whole project
+#include <stdexcept>    // std::logic_error
+#include <iostream>     // std::cerr
+#include <boost/stacktrace.hpp>
+
+namespace boost {
+    inline void assertion_failed_msg(char const* expr, char const* msg, char const* function, char const* /*file*/, long /*line*/) {
+        std::cerr << "Expression '" << expr << "' is false in function '" << function << "': " << (msg ? msg : "<...>") << ".\n"
+            << "Backtrace:\n" << boost::stacktrace::stacktrace() << '\n';
+        /*<-*/ std::exit(0); /*->*/
+        /*=std::abort();*/
+    }
+
+    inline void assertion_failed(char const* expr, char const* function, char const* file, long line) {
+        ::boost::assertion_failed_msg(expr, 0 /*nullptr*/, function, file, line);
+    }
+} // namespace boost
+//]
+
+
+int main() {
+    foo(5);
+    
+    return 2;
+}
+
+
diff --git a/src/boost/libs/stacktrace/example/debug_function.cpp b/src/boost/libs/stacktrace/example/debug_function.cpp
new file mode 100644
index 000000000..7c44d78e4
--- /dev/null
+++ b/src/boost/libs/stacktrace/example/debug_function.cpp
@@ -0,0 +1,33 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//[getting_started_debug_function
+#include <signal.h>     // ::signal
+#include <boost/stacktrace/frame.hpp>
+#include <iostream>     // std::cerr
+#include <cstdlib>      // std::exit
+
+void print_signal_handler_and_exit() {
+    typedef void(*function_t)(int);
+
+    function_t old_signal_function = ::signal(SIGSEGV, SIG_DFL);
+    boost::stacktrace::frame f(old_signal_function);
+    std::cout << f << std::endl;
+    std::exit(0);
+}
+//]
+
+
+void my_signal_handler(int /*signum*/) {
+    std::exit(1);
+}
+
+int main() {
+    ::signal(SIGSEGV, &my_signal_handler);
+    print_signal_handler_and_exit();
+}
+
+
diff --git a/src/boost/libs/stacktrace/example/terminate_handler.cpp b/src/boost/libs/stacktrace/example/terminate_handler.cpp
new file mode 100644
index 000000000..4f07777c1
--- /dev/null
+++ b/src/boost/libs/stacktrace/example/terminate_handler.cpp
@@ -0,0 +1,326 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/array.hpp>
+BOOST_NOINLINE void foo(int i);
+BOOST_NOINLINE void bar(int i);
+ 
+BOOST_NOINLINE void bar(int i) {
+    boost::array<int, 5> a = {{-1, -231, -123, -23, -32}};
+    if (i >= 0) {
+        foo(a[i]);
+    } else {
+        std::terminate();
+    }
+}
+
+BOOST_NOINLINE void foo(int i) {
+    bar(--i);
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+//[getting_started_terminate_handlers
+
+#include <signal.h>     // ::signal, ::raise
+#include <boost/stacktrace.hpp>
+
+void my_signal_handler(int signum) {
+    ::signal(signum, SIG_DFL);
+    boost::stacktrace::safe_dump_to("./backtrace.dump");
+    ::raise(SIGABRT);
+}
+//]
+
+void setup_handlers() {
+//[getting_started_setup_handlers
+    ::signal(SIGSEGV, &my_signal_handler);
+    ::signal(SIGABRT, &my_signal_handler);
+//]
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+BOOST_CONSTEXPR_OR_CONST std::size_t shared_memory_size = 4096 * 8;
+
+//[getting_started_terminate_handlers_shmem
+#include <boost/stacktrace.hpp>
+#include <boost/interprocess/shared_memory_object.hpp>
+#include <boost/interprocess/mapped_region.hpp>
+
+boost::interprocess::shared_memory_object g_shm; // inited at program start
+boost::interprocess::mapped_region g_region;     // inited at program start
+
+
+void my_signal_handler2(int signum) {
+    ::signal(signum, SIG_DFL);
+    void** f = static_cast<void**>(g_region.get_address());
+    *f = reinterpret_cast<void*>(1);                      // Setting flag that shared memory now constains stacktrace.
+    boost::stacktrace::safe_dump_to(f + 1, g_region.get_size() - sizeof(void*));
+
+    ::raise(SIGABRT);
+}
+//]
+
+#include <iostream>     // std::cerr
+#include <fstream>     // std::ifstream
+#include <boost/filesystem/path.hpp>
+#include <boost/filesystem/operations.hpp>
+
+
+inline void copy_and_run(const char* exec_name, char param, bool not_null) {
+    std::cout << "Running with param " << param << std::endl;
+    boost::filesystem::path command = exec_name;
+    command = command.parent_path() / (command.stem().string() + param + command.extension().string());
+    boost::filesystem::copy_file(exec_name, command, boost::filesystem::copy_option::overwrite_if_exists);
+
+    boost::filesystem::path command_args = command;
+    command_args += ' ';
+    command_args += param;
+    const int ret = std::system(command_args.string().c_str());
+
+    std::cout << "End Running with param " << param << "; ret code is " << ret << std::endl;
+    boost::system::error_code ignore;
+    boost::filesystem::remove(command, ignore);
+    if (not_null && !ret) {
+        std::exit(97);
+    } else if (!not_null && ret) {
+        std::exit(ret);
+    }
+}
+
+int run_1(const char* /*argv*/[]) {
+    setup_handlers();
+    foo(5);
+    return 11;
+}
+
+int run_2(const char* argv[]) {
+    if (!boost::filesystem::exists("./backtrace.dump")) {
+        if (std::string(argv[0]).find("noop") == std::string::npos) {
+            return 21;
+        }
+
+        boost::stacktrace::stacktrace st = boost::stacktrace::stacktrace::from_dump(std::cin);
+        if (st) {
+            return 22;
+        }
+        return 0;
+    }
+
+//[getting_started_on_program_restart
+    if (boost::filesystem::exists("./backtrace.dump")) {
+        // there is a backtrace
+        std::ifstream ifs("./backtrace.dump");
+
+        boost::stacktrace::stacktrace st = boost::stacktrace::stacktrace::from_dump(ifs);
+        std::cout << "Previous run crashed:\n" << st << std::endl; /*<-*/
+
+        if (!st) {
+            return 23;
+        } /*->*/
+
+        // cleaning up
+        ifs.close();
+        boost::filesystem::remove("./backtrace.dump");
+    }
+//]
+
+    return 0;
+}
+
+
+int run_3(const char* /*argv*/[]) {
+    using namespace boost::interprocess;
+    {
+        shared_memory_object shm_obj(open_or_create, "shared_memory", read_write);
+        shm_obj.swap(g_shm);
+    }
+    g_shm.truncate(shared_memory_size);
+
+    {
+        mapped_region m(g_shm, read_write, 0, shared_memory_size);
+        m.swap(g_region);
+    }
+    void** f = static_cast<void**>(g_region.get_address());
+    *f = 0;
+
+    ::signal(SIGSEGV, &my_signal_handler2);
+    ::signal(SIGABRT, &my_signal_handler2);
+    foo(5);
+    return 31;
+}
+
+int run_4(const char* argv[]) {
+    using namespace boost::interprocess;
+    {
+        shared_memory_object shm_obj(open_only, "shared_memory", read_write);
+        shm_obj.swap(g_shm);
+    }
+
+    {
+        mapped_region m(g_shm, read_write, 0, shared_memory_size);
+        m.swap(g_region);
+    }
+
+//[getting_started_on_program_restart_shmem
+    void** f = static_cast<void**>(g_region.get_address());
+    if (*f) {                                                 // Checking if memory constains stacktrace.
+        boost::stacktrace::stacktrace st 
+            = boost::stacktrace::stacktrace::from_dump(f + 1, g_region.get_size() - sizeof(bool));
+
+        std::cout << "Previous run crashed and left trace in shared memory:\n" << st << std::endl;
+        *f = 0; /*<-*/
+        shared_memory_object::remove("shared_memory");
+        if (std::string(argv[0]).find("noop") == std::string::npos) {
+            if (!st) {
+                return 43;
+            }
+        } else {
+           if (st) {
+                return 44;
+            }
+        }
+    } else {
+        return 42; /*->*/
+    }
+//]
+
+
+    return 0;
+}
+
+#include <sstream>
+
+int test_inplace() {
+    const bool is_noop = !boost::stacktrace::stacktrace();
+
+    {
+        // This is very dependent on compiler and link flags. No sane way to make it work, because:
+        // * BOOST_NOINLINE could be ignored by MSVC compiler if link-time optimization is enabled.
+        // * BOOST_FORCEINLINE could be ignored by GCC depending on the std::vector default constructor length.
+        const std::size_t frames_ss1 = boost::stacktrace::safe_dump_to("./backtrace2.dump");
+        boost::stacktrace::stacktrace ss2;
+        std::ifstream ifs("./backtrace2.dump");
+        boost::stacktrace::stacktrace ss1 = boost::stacktrace::stacktrace::from_dump(ifs);
+        ifs.close();
+        boost::filesystem::remove("./backtrace2.dump");
+
+        if (ss1.size() + 1 != frames_ss1 || ss2.size() != ss1.size()) {
+            std::cerr << "51: Stacktraces differ. Dumped size == " << frames_ss1 << ".\n" << ss1 << "\n vs \n" << ss2 << '\n';
+        } else if (ss1.size() > 1 && ss1[1].name() != ss2[1].name()) {
+            std::cerr << "52: Stacktraces differ:\n" << ss1 << "\n vs \n" << ss2 << '\n';
+        }
+    }
+
+    {
+        // This is very dependent on compiler and link flags. No sane way to make it work, because:
+        // * BOOST_NOINLINE could be ignored by MSVC compiler if link-time optimization is enabled.
+        // * BOOST_FORCEINLINE could be ignored by GCC depending on the std::vector default constructor length.
+        void* data[1024];
+        const std::size_t frames_ss1 = boost::stacktrace::safe_dump_to(data, sizeof(data));
+        boost::stacktrace::stacktrace ss2;
+        boost::stacktrace::stacktrace ss1 = boost::stacktrace::stacktrace::from_dump(data, sizeof(data));
+
+        if (ss1.size() + 1 != frames_ss1 || ss1.size() != ss2.size()) {
+            std::cerr << "53: Stacktraces differ. Dumped size == " << frames_ss1 << ".\n" << ss1 << "\n vs \n" << ss2 << '\n';
+        } else if (ss1.size() > 1 && ss1[1].name() != ss2[1].name()) {
+            std::cerr << "54: Stacktraces differ:\n" << ss1 << "\n vs \n" << ss2 << '\n';
+        }
+    }
+
+    {
+        void* data[1024];
+        boost::stacktrace::safe_dump_to(1024, data, sizeof(data));
+        if (boost::stacktrace::stacktrace::from_dump(data, sizeof(data))) {
+            std::cerr << "Stacktrace not empty!\n";
+            return 55;
+        }
+    }
+
+    {
+        void* data[1024];
+        boost::stacktrace::safe_dump_to(1, data, sizeof(data));
+        if (!is_noop && !boost::stacktrace::stacktrace::from_dump(data, sizeof(data))) {
+            std::cerr << "Stacktrace empty!\n";
+            return 56;
+        }
+        const std::size_t size_1_skipped = boost::stacktrace::stacktrace::from_dump(data, sizeof(data)).size();
+        boost::stacktrace::safe_dump_to(0, data, sizeof(data));
+        const std::size_t size_0_skipped = boost::stacktrace::stacktrace::from_dump(data, sizeof(data)).size();
+
+        if (!is_noop && (size_1_skipped + 1 != size_0_skipped)) {
+            std::cerr << "failed to skip 1 frame!\n";
+            return 57;
+        }
+    }
+
+    {
+        boost::stacktrace::safe_dump_to(0, 1, "./backtrace3.dump");
+        std::ifstream ifs("./backtrace3.dump");
+        boost::stacktrace::stacktrace ss1 = boost::stacktrace::stacktrace::from_dump(ifs);
+        ifs.close();
+
+        boost::stacktrace::safe_dump_to(1, 1, "./backtrace3.dump");
+        ifs.open("./backtrace3.dump");
+        boost::stacktrace::stacktrace ss2 = boost::stacktrace::stacktrace::from_dump(ifs);
+        ifs.close();
+
+        boost::filesystem::remove("./backtrace3.dump");
+
+#ifdef BOOST_WINDOWS
+        // `ss2` could be empty on some combinations of Windows+MSVC.
+        if (!ss2) {
+            return 0;
+        }
+#endif
+
+        if (ss1.size() != ss2.size()) {
+            std::cerr << "Stacktraces differ:\n" << ss1 << "\n vs \n" << ss2 << '\n';
+            return 58;
+        }
+
+        if (!is_noop && ss1.size() != 1) {
+            std::cerr << "Stacktraces does not have size 1:\n" << ss1 << '\n';
+            return 59;
+        }
+
+        if (ss1 && ss1[0].address() == ss2[0].address()) {
+            std::cerr << "Stacktraces must differ:\n" << ss1 << "\n vs \n" << ss2 << '\n';
+            return 60;
+        }
+    }
+
+    return 0;
+}
+
+
+int main(int argc, const char* argv[]) {
+    if (argc < 2) {
+#ifndef BOOST_WINDOWS
+        // We are copying files to make sure that stacktrace printing works independently from executable name
+        copy_and_run(argv[0], '1', true);
+        copy_and_run(argv[0], '2', false);
+
+        // There are some issues with async-safety of shared memory writes on Windows.
+        copy_and_run(argv[0], '3', true);
+        copy_and_run(argv[0], '4', false);
+#endif
+
+        return test_inplace();
+    }
+
+    switch (argv[1][0]) {
+    case '1': return run_1(argv);
+    case '2': return run_2(argv);
+    case '3': return run_3(argv);
+    case '4': return run_4(argv);
+    }
+
+    return 404;
+}
+
+
diff --git a/src/boost/libs/stacktrace/example/throwing_st.cpp b/src/boost/libs/stacktrace/example/throwing_st.cpp
new file mode 100644
index 000000000..ecf67909d
--- /dev/null
+++ b/src/boost/libs/stacktrace/example/throwing_st.cpp
@@ -0,0 +1,78 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/config.hpp>
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+//[getting_started_class_traced
+#include <boost/stacktrace.hpp>
+#include <boost/exception/all.hpp> 
+
+typedef boost::error_info<struct tag_stacktrace, boost::stacktrace::stacktrace> traced;
+//]
+
+//[getting_started_class_with_trace
+template <class E>
+void throw_with_trace(const E& e) {
+    throw boost::enable_error_info(e)
+        << traced(boost::stacktrace::stacktrace());
+} 
+//]
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+BOOST_NOINLINE void oops(int i);
+BOOST_NOINLINE void foo(int i);
+BOOST_NOINLINE void bar(int i);
+
+#include <stdexcept>
+BOOST_NOINLINE void oops(int i) {
+    //[getting_started_throwing_with_trace
+    if (i >= 4)
+        throw_with_trace(std::out_of_range("'i' must be less than 4 in oops()"));
+    if (i <= 0)
+        throw_with_trace(std::logic_error("'i' must be greater than zero in oops()"));
+    //]
+    foo(i);
+    std::exit(1);
+}
+
+#include <boost/array.hpp>
+BOOST_NOINLINE void bar(int i) {
+    boost::array<int, 5> a = {{0, 0, 0, 0, 0}};
+    if (i < 5) {
+        if (i >= 0) {
+            foo(a[i]);
+        } else {
+            oops(i);
+        }
+    }
+    std::exit(2);
+}
+
+BOOST_NOINLINE void foo(int i) {
+    bar(--i);
+}
+
+#include <iostream>
+int main() {
+
+    //[getting_started_catching_trace
+    try {
+        foo(5); // testing assert handler
+    } catch (const std::exception& e) {
+        std::cerr << e.what() << '\n';
+        const boost::stacktrace::stacktrace* st = boost::get_error_info<traced>(e);
+        if (st) {
+            std::cerr << *st << '\n'; /*<-*/ return 0; /*->*/
+        } /*<-*/ return 3; /*->*/
+    }
+    //]
+
+    return 5;
+}
+
diff --git a/src/boost/libs/stacktrace/example/trace_addresses.cpp b/src/boost/libs/stacktrace/example/trace_addresses.cpp
new file mode 100644
index 000000000..dedec1ef3
--- /dev/null
+++ b/src/boost/libs/stacktrace/example/trace_addresses.cpp
@@ -0,0 +1,63 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/config.hpp>
+
+#ifdef BOOST_NO_CXX11_RANGE_BASED_FOR
+#include <boost/stacktrace.hpp>
+#include <iostream>     // std::cout
+
+namespace bs = boost::stacktrace;
+void dump_compact(const bs::stacktrace& st) {
+    for (unsigned i = 0; i < st.size(); ++i) {
+        bs::frame frame = st[i];
+        std::cout << frame.address() << ',';
+    }
+
+    std::cout << std::endl;
+}
+#else
+//[getting_started_trace_addresses
+#include <boost/stacktrace.hpp>
+#include <iostream>     // std::cout
+
+namespace bs = boost::stacktrace;
+void dump_compact(const bs::stacktrace& st) {
+    for (bs::frame frame: st) {
+        std::cout << frame.address() << ',';
+    }
+
+    std::cout << std::endl;
+}
+//]
+#endif
+
+BOOST_NOINLINE boost::stacktrace::stacktrace rec1(int i);
+BOOST_NOINLINE boost::stacktrace::stacktrace rec2(int i);
+
+BOOST_NOINLINE boost::stacktrace::stacktrace rec1(int i) {
+    if (i < 5) {
+        if (!i) return boost::stacktrace::stacktrace();
+        return rec2(--i);
+    }
+
+    return rec2(i - 2);
+}
+
+BOOST_NOINLINE boost::stacktrace::stacktrace rec2(int i) {
+    if (i < 5) {
+        if (!i) return boost::stacktrace::stacktrace();
+        return rec2(--i);
+    }
+
+    return rec2(i - 2);
+}
+
+int main() {
+    dump_compact(rec1(8));
+}
+
+
diff --git a/src/boost/libs/stacktrace/example/user_config.cpp b/src/boost/libs/stacktrace/example/user_config.cpp
new file mode 100644
index 000000000..dc9354674
--- /dev/null
+++ b/src/boost/libs/stacktrace/example/user_config.cpp
@@ -0,0 +1,38 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#define BOOST_USER_CONFIG <libs/stacktrace/example/user_config.hpp>
+
+#include <boost/array.hpp>
+#include <exception>    // std::set_terminate, std::abort
+#include <boost/stacktrace.hpp>
+#include <iostream>     // std::cerr
+BOOST_NOINLINE void foo(int i);
+BOOST_NOINLINE void bar(int i);
+ 
+BOOST_NOINLINE void bar(int i) {
+    boost::array<int, 5> a = {{-1, -231, -123, -23, -32}};
+    if (i >= 0) {
+        foo(a[i]);
+    } else {
+        std::cerr << "Terminate called:\n" << boost::stacktrace::stacktrace() << '\n';
+        std::exit(0);
+    }
+}
+
+BOOST_NOINLINE void foo(int i) {
+    bar(--i);
+}
+
+int main() {
+    foo(5);
+    
+    return 2;
+}
+
+
+
+
diff --git a/src/boost/libs/stacktrace/example/user_config.hpp b/src/boost/libs/stacktrace/example/user_config.hpp
new file mode 100644
index 000000000..d9daf25b3
--- /dev/null
+++ b/src/boost/libs/stacktrace/example/user_config.hpp
@@ -0,0 +1,58 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+
+//[getting_started_user_config
+#ifndef USER_CONFIG_HPP
+#define USER_CONFIG_HPP
+
+#include <boost/stacktrace/stacktrace_fwd.hpp>
+
+#include <iosfwd>
+
+namespace boost { namespace stacktrace {
+
+template <class CharT, class TraitsT, class Allocator>
+std::basic_ostream<CharT, TraitsT>& do_stream_st(std::basic_ostream<CharT, TraitsT>& os, const basic_stacktrace<Allocator>& bt);
+
+template <class CharT, class TraitsT>
+std::basic_ostream<CharT, TraitsT>& operator<<(std::basic_ostream<CharT, TraitsT>& os, const stacktrace& bt) {
+    return do_stream_st(os, bt);
+}
+
+}}  // namespace boost::stacktrace
+#endif // USER_CONFIG_HPP
+//]
+
+#ifndef USER_CONFIG2_HPP
+#define USER_CONFIG2_HPP
+
+#include <ios> // std::streamsize
+
+//[getting_started_user_config_impl
+namespace boost { namespace stacktrace {
+
+template <class CharT, class TraitsT, class Allocator>
+std::basic_ostream<CharT, TraitsT>& do_stream_st(std::basic_ostream<CharT, TraitsT>& os, const basic_stacktrace<Allocator>& bt) {
+    const std::streamsize w = os.width();
+    const std::size_t frames = bt.size();
+    for (std::size_t i = 0; i < frames; ++i) {
+        os.width(2);
+        os << i;
+        os.width(w);
+        os << "# ";
+        os << bt[i].name();
+        os << '\n';
+    }
+
+    return os;
+}
+
+}}  // namespace boost::stacktrace
+//]
+
+#endif // USER_CONFIG2_HPP
+
diff --git a/src/boost/libs/stacktrace/index.html b/src/boost/libs/stacktrace/index.html
new file mode 100644
index 000000000..ee7ddb8e2
--- /dev/null
+++ b/src/boost/libs/stacktrace/index.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<!--
+ Copyright (c) 2014-2019 Antony Polukhin
+ antoshkka at gmail dot com
+
+ Distributed under the Boost Software License,
+ Version 1.0. (See accompanying file LICENSE_1_0.txt
+ or copy at http://boost.org/LICENSE_1_0.txt)
+-->
+<html>
+<head>
+<meta charset="utf-8">
+<meta http-equiv="refresh" content="0; url=../../doc/html/stacktrace.html">
+<title>Boost.Stacktrace</title>
+<style>
+  body {
+    background: #fff;
+    color: #000;
+  }
+  a {
+    color: #00f;
+    text-decoration: none;
+  }
+</style>
+</head>
+<body>
+  <p>
+    Automatic redirection failed, please go to
+    <a href="../../doc/html/stacktrace.html">../../doc/html/stacktrace.html</a>
+  </p>
+  <p>
+    &copy; 2014-2019 Antony Polukhin
+  </p>
+</body>
+</html>
diff --git a/src/boost/libs/stacktrace/meta/libraries.json b/src/boost/libs/stacktrace/meta/libraries.json
new file mode 100644
index 000000000..7f7a8cd73
--- /dev/null
+++ b/src/boost/libs/stacktrace/meta/libraries.json
@@ -0,0 +1,15 @@
+{
+  "key": "stacktrace",
+  "name": "Stacktrace",
+  "authors": [
+    "Antony Polukhin"
+  ],
+  "maintainers": [
+    "Antony Polukhin <antoshkka -at- gmail.com>"
+  ],
+  "description": "Gather, store, copy and print backtraces.",
+  "std": [ "proposal" ],
+  "category": [
+    "System", "Correctness"
+  ]
+}
diff --git a/src/boost/libs/stacktrace/src/addr2line.cpp b/src/boost/libs/stacktrace/src/addr2line.cpp
new file mode 100644
index 000000000..36964b8b4
--- /dev/null
+++ b/src/boost/libs/stacktrace/src/addr2line.cpp
@@ -0,0 +1,16 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#define BOOST_STACKTRACE_INTERNAL_BUILD_LIBS
+#define BOOST_STACKTRACE_USE_ADDR2LINE
+#define BOOST_STACKTRACE_LINK
+
+#ifndef _GNU_SOURCE
+#   define _GNU_SOURCE
+#endif
+
+#include <boost/stacktrace/detail/frame_unwind.ipp>
+#include <boost/stacktrace/safe_dump_to.hpp>
diff --git a/src/boost/libs/stacktrace/src/backtrace.cpp b/src/boost/libs/stacktrace/src/backtrace.cpp
new file mode 100644
index 000000000..4c881f21b
--- /dev/null
+++ b/src/boost/libs/stacktrace/src/backtrace.cpp
@@ -0,0 +1,16 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#define BOOST_STACKTRACE_INTERNAL_BUILD_LIBS
+#define BOOST_STACKTRACE_USE_BACKTRACE
+#define BOOST_STACKTRACE_LINK
+
+#ifndef _GNU_SOURCE
+#   define _GNU_SOURCE
+#endif
+
+#include <boost/stacktrace/detail/frame_unwind.ipp>
+#include <boost/stacktrace/safe_dump_to.hpp>
diff --git a/src/boost/libs/stacktrace/src/basic.cpp b/src/boost/libs/stacktrace/src/basic.cpp
new file mode 100644
index 000000000..7e1cfffb6
--- /dev/null
+++ b/src/boost/libs/stacktrace/src/basic.cpp
@@ -0,0 +1,15 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#define BOOST_STACKTRACE_INTERNAL_BUILD_LIBS
+#define BOOST_STACKTRACE_LINK
+
+#ifndef _GNU_SOURCE
+#   define _GNU_SOURCE
+#endif
+
+#include <boost/stacktrace/detail/frame_unwind.ipp>
+#include <boost/stacktrace/safe_dump_to.hpp>
diff --git a/src/boost/libs/stacktrace/src/noop.cpp b/src/boost/libs/stacktrace/src/noop.cpp
new file mode 100644
index 000000000..a6a1e97f7
--- /dev/null
+++ b/src/boost/libs/stacktrace/src/noop.cpp
@@ -0,0 +1,11 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#define BOOST_STACKTRACE_INTERNAL_BUILD_LIBS
+#define BOOST_STACKTRACE_LINK
+#define BOOST_STACKTRACE_USE_NOOP
+#include <boost/stacktrace/detail/frame_noop.ipp>
+#include <boost/stacktrace/detail/safe_dump_noop.ipp>
diff --git a/src/boost/libs/stacktrace/src/windbg.cpp b/src/boost/libs/stacktrace/src/windbg.cpp
new file mode 100644
index 000000000..b58b3ea0f
--- /dev/null
+++ b/src/boost/libs/stacktrace/src/windbg.cpp
@@ -0,0 +1,10 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#define BOOST_STACKTRACE_INTERNAL_BUILD_LIBS
+#define BOOST_STACKTRACE_LINK
+#include <boost/stacktrace/detail/frame_msvc.ipp>
+#include <boost/stacktrace/safe_dump_to.hpp>
diff --git a/src/boost/libs/stacktrace/src/windbg_cached.cpp b/src/boost/libs/stacktrace/src/windbg_cached.cpp
new file mode 100644
index 000000000..3ab2b9b4f
--- /dev/null
+++ b/src/boost/libs/stacktrace/src/windbg_cached.cpp
@@ -0,0 +1,11 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#define BOOST_STACKTRACE_INTERNAL_BUILD_LIBS
+#define BOOST_STACKTRACE_LINK
+#define BOOST_STACKTRACE_USE_WINDBG_CACHED
+#include <boost/stacktrace/detail/frame_msvc.ipp>
+#include <boost/stacktrace/safe_dump_to.hpp>
diff --git a/src/boost/libs/stacktrace/test/Jamfile.v2 b/src/boost/libs/stacktrace/test/Jamfile.v2
new file mode 100644
index 000000000..48576ddb9
--- /dev/null
+++ b/src/boost/libs/stacktrace/test/Jamfile.v2
@@ -0,0 +1,245 @@
+#  Copyright (C) 2016-2019, Antony Polukhin.
+#
+# Use, modification and distribution is subject to the Boost Software License,
+# Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+# http://www.boost.org/LICENSE_1_0.txt)
+#
+
+import ../../config/checks/config : requires ;
+
+lib dl : : <link>shared ;
+lib gcc_s ;
+lib rt ;
+lib Dbgeng ;
+lib ole32 ;
+
+local LIBBACKTRACE_PATH = [ modules.peek : LIBBACKTRACE_PATH ] ;
+lib backtrace
+  :
+  : <search>$(LIBBACKTRACE_PATH)/lib <link>static
+  :
+  : <include>$(LIBBACKTRACE_PATH)/include
+  ;
+
+
+project
+  : requirements
+    <toolset>msvc:<asynch-exceptions>on
+    <toolset>intel:<cxxflags>-wd2196
+    <target-os>linux:<linkflags>-lpthread
+    <warnings>all
+    <test-info>always_show_run_output
+    <visibility>hidden
+  ;
+
+local FORCE_SYMBOL_EXPORT = <target-os>freebsd:<linkflags>"-rdynamic" <target-os>solaris:<linkflags>"-Bdynamic" <target-os>aix:<linkflags>"-rdynamic"
+    <target-os>qnxnto,<toolset>qcc:<linkflags>"-Bdynamic" <target-os>qnxnto,<toolset>gcc:<linkflags>"-rdynamic"
+    <target-os>android:<linkflags>"-rdynamic" <target-os>linux:<linkflags>"-rdynamic" <target-os>darwin,<toolset>gcc:<linkflags>"-dynamic"
+    <target-os>darwin,<toolset>clang:<linkflags>"-rdynamic" <target-os>iphone:<linkflags>"-rdynamic"
+    <define>BOOST_STACKTRACE_TEST_EXPORTS_TABLE_USAGE ;
+
+local BT_DEPS   = <target-os>linux:<library>dl <library>backtrace [ check-target-builds ../build//libbacktrace : : <build>no ] ;
+local AD2L_DEPS = <target-os>linux:<library>dl [ check-target-builds ../build//addr2line : : <build>no ]
+     <define>BOOST_STACKTRACE_TEST_NO_DEBUG_AT_ALL  # Some old versions of addr2line may not produce readable names for a modern compilers
+     ;
+local WIND_DEPS = <library>Dbgeng <library>ole32 [ check-target-builds ../build//WinDbg : : <build>no ] ;
+local WICA_DEPS = <library>Dbgeng <library>ole32 [ check-target-builds ../build//WinDbgCached : : <build>no ] ;
+local NOOP_DEPS = ;
+local BASIC_DEPS = <target-os>linux:<library>dl [ check-target-builds ../build//WinDbg : <build>no ] ;
+
+local LINKSHARED_BT           = <link>shared <define>BOOST_STACKTRACE_DYN_LINK <library>/boost/stacktrace//boost_stacktrace_backtrace     $(BT_DEPS)   ;
+local LINKSHARED_AD2L         = <link>shared <define>BOOST_STACKTRACE_DYN_LINK <library>/boost/stacktrace//boost_stacktrace_addr2line     $(AD2L_DEPS) ;
+local LINKSHARED_WIND         = <link>shared <define>BOOST_STACKTRACE_DYN_LINK <library>/boost/stacktrace//boost_stacktrace_windbg        $(WIND_DEPS) ;
+local LINKSHARED_WIND_CACHED  = <link>shared <define>BOOST_STACKTRACE_DYN_LINK <library>/boost/stacktrace//boost_stacktrace_windbg_cached $(WICA_DEPS) ;
+local LINKSHARED_NOOP         = <link>shared <define>BOOST_STACKTRACE_DYN_LINK <library>/boost/stacktrace//boost_stacktrace_noop          $(NOOP_DEPS) ;
+local LINKSHARED_BASIC        = <link>shared <define>BOOST_STACKTRACE_DYN_LINK <library>/boost/stacktrace//boost_stacktrace_basic         $(BASIC_DEPS) $(FORCE_SYMBOL_EXPORT) ;
+
+# Libs with debug symbols
+lib test_impl_lib_backtrace         : test_impl.cpp : <debug-symbols>on $(LINKSHARED_BT) ;
+lib test_impl_lib_addr2line         : test_impl.cpp : <debug-symbols>on $(LINKSHARED_AD2L) ;
+lib test_impl_lib_windbg            : test_impl.cpp : <debug-symbols>on $(LINKSHARED_WIND) ;
+lib test_impl_lib_windbg_cached     : test_impl.cpp : <debug-symbols>on $(LINKSHARED_WIND_CACHED) ;
+lib test_impl_lib_noop              : test_impl.cpp : <debug-symbols>on $(LINKSHARED_NOOP) ;
+
+obj test_impl_nohide-obj : test_impl.cpp : <debug-symbols>on $(LINKSHARED_BASIC) ;
+lib test_impl_lib_basic  : test_impl_nohide-obj : <debug-symbols>on $(LINKSHARED_BASIC) ;
+
+
+# Libs without debug symbols
+lib test_impl_lib_backtrace_no_dbg      : test_impl.cpp : <debug-symbols>off $(LINKSHARED_BT) ;
+lib test_impl_lib_addr2line_no_dbg      : test_impl.cpp : <debug-symbols>off $(LINKSHARED_AD2L) ;
+lib test_impl_lib_windbg_no_dbg         : test_impl.cpp : <debug-symbols>off $(LINKSHARED_WIND) ;
+lib test_impl_lib_windbg_cached_no_dbg  : test_impl.cpp : <debug-symbols>off $(LINKSHARED_WIND_CACHED) ;
+lib test_impl_lib_noop_no_dbg           : test_impl.cpp : <debug-symbols>off $(LINKSHARED_NOOP) ;
+
+obj test_impl_nohide_no_dbg-obj : test_impl.cpp : <debug-symbols>off $(LINKSHARED_BASIC) ;
+lib test_impl_lib_basic_no_dbg  : test_impl_nohide_no_dbg-obj : <debug-symbols>off $(LINKSHARED_BASIC) ;
+
+
+test-suite stacktrace_tests
+  :
+
+    # Header only tests with debug symbols
+    [ run test.cpp test_impl.cpp        : : : <debug-symbols>on <define>BOOST_STACKTRACE_USE_BACKTRACE        $(BT_DEPS)    : backtrace_ho ]
+    [ run test.cpp test_impl.cpp        : : : <debug-symbols>on <define>BOOST_STACKTRACE_USE_ADDR2LINE        $(AD2L_DEPS)  : addr2line_ho ]
+    [ run test_noop.cpp test_impl.cpp   : : : <debug-symbols>on <define>BOOST_STACKTRACE_USE_NOOP             $(NOOP_DEPS)  : noop_ho ]
+    [ run test.cpp test_impl.cpp        : : : <debug-symbols>on                                               $(WIND_DEPS)  : windbg_ho ]
+    [ run test.cpp test_impl.cpp        : : : <debug-symbols>on <define>BOOST_STACKTRACE_USE_WINDBG_CACHED    $(WICA_DEPS)  : windbg_cached_ho ]
+    [ run test.cpp test_impl.cpp        : : : <debug-symbols>on                        $(FORCE_SYMBOL_EXPORT) $(BASIC_DEPS) : basic_ho ]
+    [ run test.cpp test_impl.cpp        : : : <debug-symbols>on <define>BOOST_STACKTRACE_TEST_NO_DEBUG_AT_ALL $(BASIC_DEPS) : basic_ho_empty ]
+
+    # Test with shared linked implementations with debug symbols
+    [ run test.cpp      : : : <debug-symbols>on <library>.//test_impl_lib_backtrace     $(LINKSHARED_BT)            : backtrace_lib ]
+    [ run test.cpp      : : : <debug-symbols>on <library>.//test_impl_lib_addr2line     $(LINKSHARED_AD2L)          : addr2line_lib ]
+    [ run test.cpp      : : : <debug-symbols>on <library>.//test_impl_lib_windbg        $(LINKSHARED_WIND)          : windbg_lib ]
+    [ run test.cpp      : : : <debug-symbols>on <library>.//test_impl_lib_windbg_cached $(LINKSHARED_WIND_CACHED)   : windbg_cached_lib ]
+    [ run test_noop.cpp : : : <debug-symbols>on <library>.//test_impl_lib_noop          $(LINKSHARED_NOOP)          : noop_lib ]
+    [ run test.cpp      : : : <debug-symbols>on <library>.//test_impl_lib_basic         $(LINKSHARED_BASIC)         : basic_lib ]
+
+    # Thread safety with debug symbols
+    [ run thread_safety_checking.cpp
+        : : : <debug-symbols>on <library>/boost/thread//boost_thread <library>/boost/timer//boost_timer <library>.//test_impl_lib_backtrace       $(LINKSHARED_BT)
+        : backtrace_lib_threaded ]
+    [ run thread_safety_checking.cpp
+        : : : <debug-symbols>on <library>/boost/thread//boost_thread <library>/boost/timer//boost_timer <library>.//test_impl_lib_windbg          $(LINKSHARED_WIND)
+        : windbg_lib_threaded ]
+    [ run thread_safety_checking.cpp
+        : : : <debug-symbols>on <library>/boost/thread//boost_thread <library>/boost/timer//boost_timer <library>.//test_impl_lib_windbg_cached   $(LINKSHARED_WIND_CACHED)
+        : windbg_cached_lib_threaded ]
+    [ run thread_safety_checking.cpp
+        : : : <debug-symbols>on <library>/boost/thread//boost_thread <library>/boost/timer//boost_timer <library>.//test_impl_lib_basic           $(LINKSHARED_BASIC)
+        : basic_lib_threaded ]
+
+    [ run thread_safety_checking.cpp
+        : : : <debug-symbols>on <library>/boost/thread//boost_thread <library>/boost/timer//boost_timer <library>.//test_impl_lib_windbg
+            $(LINKSHARED_WIND) <define>BOOST_STACKTRACE_TEST_COM_PREINIT_MT
+        : windbg_lib_threaded_com_mt ]
+    [ run thread_safety_checking.cpp
+        : : : <debug-symbols>on <library>/boost/thread//boost_thread <library>/boost/timer//boost_timer <library>.//test_impl_lib_windbg_cached
+            $(LINKSHARED_WIND_CACHED) <define>BOOST_STACKTRACE_TEST_COM_PREINIT_ST
+        : windbg_cached_lib_threaded_com_st ]
+
+    ##### Tests with disabled debug symbols #####
+
+    # Header only tests without debug symbols
+    [ run test.cpp test_impl.cpp        : : : <debug-symbols>off <define>BOOST_STACKTRACE_USE_BACKTRACE                            $(FORCE_SYMBOL_EXPORT)  $(BT_DEPS)       : backtrace_ho_no_dbg ]
+    [ run test_noop.cpp test_impl.cpp   : : : <debug-symbols>off <define>BOOST_STACKTRACE_USE_NOOP                                                         $(NOOP_DEPS)     : noop_ho_no_dbg ]
+    [ run test.cpp test_impl.cpp        : : : <debug-symbols>off                                            <define>BOOST_STACKTRACE_TEST_NO_DEBUG_AT_ALL  $(WIND_DEPS)     : windbg_ho_no_dbg ]
+    [ run test.cpp test_impl.cpp        : : : <debug-symbols>off <define>BOOST_STACKTRACE_USE_WINDBG_CACHED <define>BOOST_STACKTRACE_TEST_NO_DEBUG_AT_ALL  $(WICA_DEPS)     : windbg_cached_ho_no_dbg ]
+    [ run test.cpp test_impl.cpp        : : : <debug-symbols>off                                                                    $(FORCE_SYMBOL_EXPORT) $(BASIC_DEPS)    : basic_ho_no_dbg ]
+    [ run test.cpp test_impl.cpp        : : : <debug-symbols>off                                            <define>BOOST_STACKTRACE_TEST_NO_DEBUG_AT_ALL  $(BASIC_DEPS)    : basic_ho_no_dbg_empty ]
+    [ run test.cpp test_impl.cpp
+        : : : <debug-symbols>off <define>BOOST_STACKTRACE_USE_ADDR2LINE <define>BOOST_STACKTRACE_ADDR2LINE_LOCATION="/usr/bin/addr2line"                   $(AD2L_DEPS)
+        : addr2line_ho_no_dbg ]
+
+    # Test with shared linked implementations without debug symbols
+    [ run test.cpp      : : : <debug-symbols>off <library>.//test_impl_lib_backtrace_no_dbg     $(LINKSHARED_BT)                             $(FORCE_SYMBOL_EXPORT)     : backtrace_lib_no_dbg ]
+    [ run test.cpp      : : : <debug-symbols>off <library>.//test_impl_lib_addr2line_no_dbg     $(LINKSHARED_AD2L)                                                      : addr2line_lib_no_dbg ]
+    [ run test.cpp      : : : <debug-symbols>off <library>.//test_impl_lib_windbg_no_dbg        $(LINKSHARED_WIND)        <define>BOOST_STACKTRACE_TEST_NO_DEBUG_AT_ALL : windbg_lib_no_dbg ]
+    [ run test.cpp      : : : <debug-symbols>off <library>.//test_impl_lib_windbg_cached_no_dbg $(LINKSHARED_WIND_CACHED) <define>BOOST_STACKTRACE_TEST_NO_DEBUG_AT_ALL : windbg_cached_lib_no_dbg ]
+    [ run test_noop.cpp : : : <debug-symbols>off <library>.//test_impl_lib_noop_no_dbg          $(LINKSHARED_NOOP)                                                      : noop_lib_no_dbg ]
+    [ run test.cpp      : : : <debug-symbols>off <library>.//test_impl_lib_basic_no_dbg         $(LINKSHARED_BASIC)                                                     : basic_lib_no_dbg ]
+
+    # Thread safety without debug symbols
+    [ run thread_safety_checking.cpp
+        : : : <debug-symbols>off
+            <library>/boost/thread//boost_thread
+            <library>/boost/timer//boost_timer
+            <library>.//test_impl_lib_backtrace_no_dbg
+            $(LINKSHARED_BT)
+        : backtrace_lib_no_dbg_threaded ]
+    [ run thread_safety_checking.cpp
+        : : : <debug-symbols>off
+            <library>/boost/thread//boost_thread
+            <library>/boost/timer//boost_timer
+            <library>.//test_impl_lib_windbg_no_dbg
+            $(LINKSHARED_WIND)
+        : windbg_lib_no_dbg_threaded ]
+    [ run thread_safety_checking.cpp
+        : : : <debug-symbols>off
+            <library>/boost/thread//boost_thread
+            <library>/boost/timer//boost_timer
+            <library>.//test_impl_lib_windbg_cached_no_dbg
+            $(LINKSHARED_WIND_CACHED)
+        : windbg_cached_lib_no_dbg_threaded ]
+    [ run thread_safety_checking.cpp
+        : : : <debug-symbols>off
+            <library>/boost/thread//boost_thread
+            <library>/boost/timer//boost_timer
+            <library>.//test_impl_lib_basic_no_dbg
+            $(LINKSHARED_BASIC)
+        : basic_lib_no_dbg_threaded ]
+
+    [ run thread_safety_checking.cpp
+        : : : <debug-symbols>off
+            <library>/boost/thread//boost_thread
+            <library>/boost/timer//boost_timer
+            <library>.//test_impl_lib_windbg
+            $(LINKSHARED_WIND)
+            <define>BOOST_STACKTRACE_TEST_COM_PREINIT_MT
+        : windbg_lib_threaded_com_mt ]
+    [ run thread_safety_checking.cpp
+        : : : <debug-symbols>off
+            <library>/boost/thread//boost_thread
+            <library>/boost/timer//boost_timer
+            <library>.//test_impl_lib_windbg_cached
+            $(LINKSHARED_WIND_CACHED)
+            <define>BOOST_STACKTRACE_TEST_COM_PREINIT_ST
+        : windbg_cached_lib_threaded_com_st ]
+
+    [ run test_void_ptr_cast.cpp ]
+    [ run test_num_conv.cpp ]
+  ;
+
+# Assuring that examples compile and run. Adding sources from `examples` directory to the `type_index` test suite.
+for local p in [ glob ../example/*.cpp ]
+{
+    local target_name = $(p[1]:B) ;
+    local additional_dependency = ;
+    if $(target_name) = "terminate_handler"
+    {
+        additional_dependency = <library>/boost/filesystem//boost_filesystem <library>/boost/system//boost_system <target-os>linux:<library>rt ;
+    }
+
+    if $(target_name) = "throwing_st"
+    {
+        additional_dependency = [ requires rtti ] ;
+    }
+
+    stacktrace_tests += [ run $(p) : : : <debug-symbols>on $(LINKSHARED_BT)           $(additional_dependency)    : backtrace_$(p2[1]:B) ] ;
+    stacktrace_tests += [ run $(p) : : : <debug-symbols>on $(LINKSHARED_AD2L)         $(additional_dependency)    : addr2line_$(p[1]:B) ] ;
+    stacktrace_tests += [ run $(p) : : : <debug-symbols>on $(LINKSHARED_WIND)         $(additional_dependency)    : windbg_$(p[1]:B) ] ;
+    stacktrace_tests += [ run $(p) : : : <debug-symbols>on $(LINKSHARED_WIND_CACHED)  $(additional_dependency)    : windbg_cached_$(p[1]:B) ] ;
+    stacktrace_tests += [ run $(p) : : : <debug-symbols>on $(LINKSHARED_NOOP)         $(additional_dependency)    : noop_$(p[1]:B) ] ;
+    stacktrace_tests += [ run $(p) : : : <debug-symbols>on $(LINKSHARED_BASIC)        $(additional_dependency)    : basic_$(p[1]:B) ] ;
+
+
+    ##### Tests with disabled debug symbols #####
+
+    stacktrace_tests += [ run $(p) : : : <debug-symbols>off $(LINKSHARED_BT)          $(additional_dependency)    : backtrace_$(p[1]:B)_no_dbg ] ;
+    stacktrace_tests += [ run $(p) : : : <debug-symbols>off $(LINKSHARED_AD2L)        $(additional_dependency)    : addr2line_$(p[1]:B)_no_dbg ] ;
+    stacktrace_tests += [ run $(p) : : : <debug-symbols>off $(LINKSHARED_WIND)        $(additional_dependency)    : windbg_$(p[1]:B)_no_dbg ] ;
+    stacktrace_tests += [ run $(p) : : : <debug-symbols>off $(LINKSHARED_WIND_CACHED) $(additional_dependency)    : windbg_cached_$(p[1]:B)_no_dbg ] ;
+    stacktrace_tests += [ run $(p) : : : <debug-symbols>off $(LINKSHARED_NOOP)        $(additional_dependency)    : noop_$(p[1]:B)_no_dbg ] ;
+    stacktrace_tests += [ run $(p) : : : <debug-symbols>off $(LINKSHARED_BASIC)       $(additional_dependency)    : basic_$(p[1]:B)_no_dbg ] ;
+
+}
+
+# Very long tests for detecting memory leaks and corruptions
+test-suite stacktrace_torture
+  :
+    [ run torture.cpp test_impl.cpp : : : <debug-symbols>on <define>BOOST_STACKTRACE_USE_BACKTRACE        $(BT_DEPS)    : torture_backtrace_ho ]
+    #[ run torture.cpp test_impl.cpp : : : <debug-symbols>on <define>BOOST_STACKTRACE_USE_ADDR2LINE        $(AD2L_DEPS)  : torture_addr2line_ho ]
+    [ run torture.cpp test_impl.cpp : : : <debug-symbols>on                                               $(WIND_DEPS)  : torture_windbg_ho ]
+    [ run torture.cpp test_impl.cpp : : : <debug-symbols>on <define>BOOST_STACKTRACE_USE_WINDBG_CACHED    $(WICA_DEPS)  : torture_windbg_cached_ho ]
+    [ run torture.cpp test_impl.cpp : : : <debug-symbols>on                        $(FORCE_SYMBOL_EXPORT) $(BASIC_DEPS) : torture_basic_ho ]
+    [ run torture.cpp test_impl.cpp : : : <debug-symbols>on <define>BOOST_STACKTRACE_TEST_NO_DEBUG_AT_ALL $(BASIC_DEPS) : torture_basic_ho_empty ]
+
+    [ run torture.cpp test_impl.cpp : : : <debug-symbols>on <library>.//test_impl_lib_backtrace     $(LINKSHARED_BT)            : torture_backtrace_lib ]
+    #[ run torture.cpp test_impl.cpp : : : <debug-symbols>on <library>.//test_impl_lib_addr2line     $(LINKSHARED_AD2L)          : torture_addr2line_lib ]
+    [ run torture.cpp test_impl.cpp : : : <debug-symbols>on <library>.//test_impl_lib_windbg        $(LINKSHARED_WIND)          : torture_windbg_lib ]
+    [ run torture.cpp test_impl.cpp : : : <debug-symbols>on <library>.//test_impl_lib_windbg_cached $(LINKSHARED_WIND_CACHED)   : torture_windbg_cached_lib ]
+    [ run torture.cpp test_impl.cpp : : : <debug-symbols>on <library>.//test_impl_lib_basic         $(LINKSHARED_BASIC)         : torture_basic_lib ]
+  ;
+explicit stacktrace_torture ;
+
diff --git a/src/boost/libs/stacktrace/test/test.cpp b/src/boost/libs/stacktrace/test/test.cpp
new file mode 100644
index 000000000..66041e335
--- /dev/null
+++ b/src/boost/libs/stacktrace/test/test.cpp
@@ -0,0 +1,282 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/stacktrace/stacktrace_fwd.hpp>
+
+#include <boost/stacktrace.hpp>
+#include <stdexcept>
+#include <iostream>
+#include <sstream>
+#include <cctype>
+
+#include <boost/core/lightweight_test.hpp>
+
+#include <boost/functional/hash.hpp>
+
+#include "test_impl.hpp"
+
+using boost::stacktrace::stacktrace;
+using boost::stacktrace::frame;
+
+
+#if (defined(BOOST_GCC) && defined(BOOST_WINDOWS) && !defined(BOOST_STACKTRACE_USE_BACKTRACE) && !defined(BOOST_STACKTRACE_USE_ADDR2LINE)) \
+    || defined(BOOST_STACKTRACE_TEST_NO_DEBUG_AT_ALL)
+
+#   define BOOST_STACKTRACE_TEST_SHOULD_OUTPUT_READABLE_NAMES 0
+#else
+#   define BOOST_STACKTRACE_TEST_SHOULD_OUTPUT_READABLE_NAMES 1
+#endif
+
+void test_deeply_nested_namespaces() {
+    std::stringstream ss;
+    ss << return_from_nested_namespaces();
+    std::cout << ss.str() << '\n';
+#if BOOST_STACKTRACE_TEST_SHOULD_OUTPUT_READABLE_NAMES
+    BOOST_TEST(ss.str().find("main") != std::string::npos);
+
+    BOOST_TEST(ss.str().find("get_backtrace_from_nested_namespaces") != std::string::npos
+        || ss.str().find("1# return_from_nested_namespaces") != std::string::npos); // GCC with -O1 has strange inlining, so this line is true while the prev one is false.
+
+    BOOST_TEST(ss.str().find("return_from_nested_namespaces") != std::string::npos);
+#endif
+
+    stacktrace ns1 = return_from_nested_namespaces();
+    BOOST_TEST(ns1 != return_from_nested_namespaces()); // Different addresses in test_deeply_nested_namespaces() function
+}
+
+std::size_t count_unprintable_chars(const std::string& s) {
+    std::size_t result = 0;
+    for (std::size_t i = 0; i < s.size(); ++i) {
+        result += (std::isprint(s[i]) ? 0 : 1);
+    }
+
+    return result;
+}
+
+void test_frames_string_data_validity() {
+    stacktrace trace = return_from_nested_namespaces();
+    for (std::size_t i = 0; i < trace.size(); ++i) {
+        BOOST_TEST_EQ(count_unprintable_chars(trace[i].source_file()), 0);
+        BOOST_TEST_EQ(count_unprintable_chars(trace[i].name()), 0);
+    }
+
+    BOOST_TEST(to_string(trace).find('\0') == std::string::npos);
+}
+
+// Template parameter Depth is to produce different functions on each Depth. This simplifies debugging when one of the tests catches error
+template <std::size_t Depth>
+void test_nested(bool print = true) {
+    std::pair<stacktrace, stacktrace> res = function_from_library(Depth, function_from_main_translation_unit);
+
+    std::stringstream ss1, ss2;
+
+    ss1 << res.first;
+    ss2 << res.second;
+    if (print) {
+        std::cout << "'" << ss1.str() << "'\n\n" << ss2.str() << std::endl;
+    }
+    BOOST_TEST(!ss1.str().empty());
+    BOOST_TEST(!ss2.str().empty());
+
+    BOOST_TEST(ss1.str().find(" 0# ") != std::string::npos);
+    BOOST_TEST(ss2.str().find(" 0# ") != std::string::npos);
+
+    BOOST_TEST(ss1.str().find(" 1# ") != std::string::npos);
+    BOOST_TEST(ss2.str().find(" 1# ") != std::string::npos);
+    
+    BOOST_TEST(ss1.str().find(" in ") != std::string::npos);
+    BOOST_TEST(ss2.str().find(" in ") != std::string::npos);
+
+#if BOOST_STACKTRACE_TEST_SHOULD_OUTPUT_READABLE_NAMES
+    BOOST_TEST(ss1.str().find("main") != std::string::npos);
+    BOOST_TEST(ss2.str().find("main") != std::string::npos);
+
+    BOOST_TEST(ss1.str().find("function_from_library") != std::string::npos);
+    BOOST_TEST(ss2.str().find("function_from_library") != std::string::npos);
+
+    BOOST_TEST(ss1.str().find("function_from_main_translation_unit") != std::string::npos);
+    BOOST_TEST(ss2.str().find("function_from_main_translation_unit") != std::string::npos);
+#endif
+}
+
+template <class Bt>
+void test_comparisons_base(Bt nst, Bt st) {
+    Bt cst(st);
+    st = st;
+    cst = cst;
+    BOOST_TEST(nst);
+    BOOST_TEST(st);
+#if !defined(BOOST_MSVC) && !defined(BOOST_STACKTRACE_USE_WINDBG)
+    // This is very dependent on compiler and link flags. No sane way to make it work, because
+    // BOOST_NOINLINE could be ignored by MSVC compiler if link-time optimization is enabled.
+    BOOST_TEST(nst[0] != st[0]);
+#endif
+
+    BOOST_TEST(nst != st);
+    BOOST_TEST(st != nst);
+    BOOST_TEST(st == st);
+    BOOST_TEST(nst == nst);
+
+    BOOST_TEST(nst != cst);
+    BOOST_TEST(cst != nst);
+    BOOST_TEST(cst == st);
+    BOOST_TEST(cst == cst);
+
+    BOOST_TEST(nst < st || nst > st);
+    BOOST_TEST(st < nst || nst < st);
+    BOOST_TEST(st <= st);
+    BOOST_TEST(nst <= nst);
+    BOOST_TEST(st >= st);
+    BOOST_TEST(nst >= nst);
+
+    BOOST_TEST(nst < cst || cst < nst);
+    BOOST_TEST(nst > cst || cst > nst);
+
+
+    BOOST_TEST(hash_value(nst) == hash_value(nst));
+    BOOST_TEST(hash_value(cst) == hash_value(st));
+
+    BOOST_TEST(hash_value(nst) != hash_value(cst));
+    BOOST_TEST(hash_value(st) != hash_value(nst));
+}
+
+void test_comparisons() {
+    stacktrace nst = return_from_nested_namespaces();
+    stacktrace st;
+    test_comparisons_base(nst, st);
+}
+
+void test_iterators() {
+    stacktrace st;
+
+    BOOST_TEST(st.begin() == st.begin());
+    BOOST_TEST(st.cbegin() == st.cbegin());
+    BOOST_TEST(st.crbegin() == st.crbegin());
+    BOOST_TEST(st.rbegin() == st.rbegin());
+
+    BOOST_TEST(st.begin() + 1 == st.begin() + 1);
+    BOOST_TEST(st.cbegin() + 1 == st.cbegin() + 1);
+    BOOST_TEST(st.crbegin() + 1 == st.crbegin() + 1);
+    BOOST_TEST(st.rbegin() + 1 == st.rbegin() + 1);
+
+    BOOST_TEST(st.end() == st.end());
+    BOOST_TEST(st.cend() == st.cend());
+    BOOST_TEST(st.crend() == st.crend());
+    BOOST_TEST(st.rend() == st.rend());
+
+    BOOST_TEST(st.end() > st.begin());
+    BOOST_TEST(st.end() > st.cbegin());
+    BOOST_TEST(st.cend() > st.cbegin());
+    BOOST_TEST(st.cend() > st.begin());
+
+    BOOST_TEST(st.size() == static_cast<std::size_t>(st.end() - st.begin()));
+    BOOST_TEST(st.size() == static_cast<std::size_t>(st.end() - st.cbegin()));
+    BOOST_TEST(st.size() == static_cast<std::size_t>(st.cend() - st.cbegin()));
+    BOOST_TEST(st.size() == static_cast<std::size_t>(st.cend() - st.begin()));
+
+    BOOST_TEST(st.size() == static_cast<std::size_t>(std::distance(st.rbegin(), st.rend())));
+    BOOST_TEST(st.size() == static_cast<std::size_t>(std::distance(st.crbegin(), st.rend())));
+    BOOST_TEST(st.size() == static_cast<std::size_t>(std::distance(st.crbegin(), st.crend())));
+    BOOST_TEST(st.size() == static_cast<std::size_t>(std::distance(st.rbegin(), st.crend())));
+
+
+    boost::stacktrace::stacktrace::iterator it = st.begin();
+    ++ it;
+    BOOST_TEST(it == st.begin() + 1);
+}
+
+void test_frame() {
+    stacktrace nst = return_from_nested_namespaces();
+    stacktrace st = make_some_stacktrace1();
+
+    const std::size_t min_size = (nst.size() < st.size() ? nst.size() : st.size());
+    BOOST_TEST(min_size > 2);
+
+    for (std::size_t i = 0; i < min_size; ++i) {
+        BOOST_TEST(st[i] == st[i]);
+        BOOST_TEST(st[i].source_file() == st[i].source_file());
+        BOOST_TEST(st[i].source_line() == st[i].source_line());
+        BOOST_TEST(st[i] <= st[i]);
+        BOOST_TEST(st[i] >= st[i]);
+
+        frame fv = nst[i];
+        BOOST_TEST(fv);
+        if (i > 1 && i < min_size - 3) {       // Begin ...and end of the trace may match, skipping
+            BOOST_TEST(st[i] != fv);
+            
+#if !(defined(BOOST_STACKTRACE_TEST_NO_DEBUG_AT_ALL) && defined(BOOST_MSVC))
+            // MSVC can not get function name withhout debug symbols even if it is exported
+            BOOST_TEST(st[i].name() != fv.name());
+            BOOST_TEST(st[i] != fv);
+            BOOST_TEST(st[i] < fv || st[i] > fv);
+            BOOST_TEST(hash_value(st[i]) != hash_value(fv));
+#endif
+
+            if (st[i].source_line()) {
+                BOOST_TEST(st[i].source_file() != fv.source_file() || st[i].source_line() != fv.source_line());
+            }
+            BOOST_TEST(st[i]);
+        }
+
+        fv = st[i];
+        BOOST_TEST(hash_value(st[i]) == hash_value(fv));
+    }
+
+    boost::stacktrace::frame empty_frame;
+    BOOST_TEST(!empty_frame);
+    BOOST_TEST_EQ(empty_frame.source_file(), "");
+    BOOST_TEST_EQ(empty_frame.name(), "");
+    BOOST_TEST_EQ(empty_frame.source_line(), 0);
+}
+
+// Template parameter bool BySkip is to produce different functions on each BySkip. This simplifies debugging when one of the tests catches error
+template <bool BySkip>
+void test_empty_basic_stacktrace() {
+    typedef boost::stacktrace::stacktrace st_t;
+    st_t st = BySkip ? st_t(100500, 1024) :  st_t(0, 0);
+
+    BOOST_TEST(!st);
+    BOOST_TEST(st.empty());
+    BOOST_TEST(st.size() == 0);
+    BOOST_TEST(st.begin() == st.end());
+    BOOST_TEST(st.cbegin() == st.end());
+    BOOST_TEST(st.cbegin() == st.cend());
+    BOOST_TEST(st.begin() == st.cend());
+
+    BOOST_TEST(st.rbegin() == st.rend());
+    BOOST_TEST(st.crbegin() == st.rend());
+    BOOST_TEST(st.crbegin() == st.crend());
+    BOOST_TEST(st.rbegin() == st.crend());
+
+    BOOST_TEST(hash_value(st) == hash_value(st_t(0, 0)));
+    BOOST_TEST(st == st_t(0, 0));
+    BOOST_TEST(!(st < st_t(0, 0)));
+    BOOST_TEST(!(st > st_t(0, 0)));
+}
+
+int main() {
+    test_deeply_nested_namespaces();
+    test_frames_string_data_validity();
+    test_nested<15>();
+    test_comparisons();
+    test_iterators();
+    test_frame();
+    test_empty_basic_stacktrace<true>();
+    test_empty_basic_stacktrace<false>();
+
+    BOOST_TEST(&make_some_stacktrace1 != &make_some_stacktrace2);
+    boost::stacktrace::stacktrace b1 = make_some_stacktrace1();
+    BOOST_TEST(b1.size() == 4);
+    boost::stacktrace::stacktrace b2 = make_some_stacktrace2();
+    BOOST_TEST(b2.size() == 4);
+    test_comparisons_base(make_some_stacktrace1(), make_some_stacktrace2());
+
+    test_nested<260>(false);
+    BOOST_TEST(boost::stacktrace::stacktrace(0, 1).size() == 1);
+    BOOST_TEST(boost::stacktrace::stacktrace(1, 1).size() == 1);
+
+    return boost::report_errors();
+}
diff --git a/src/boost/libs/stacktrace/test/test_impl.cpp b/src/boost/libs/stacktrace/test/test_impl.cpp
new file mode 100644
index 000000000..06fd1d65d
--- /dev/null
+++ b/src/boost/libs/stacktrace/test/test_impl.cpp
@@ -0,0 +1,72 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#define BOOST_STACKTRACE_TEST_IMPL_LIB 1
+#include "test_impl.hpp"
+
+using namespace boost::stacktrace;
+
+BOOST_ST_API BOOST_NOINLINE std::pair<stacktrace, stacktrace> function_from_library(int i, foo1_t foo1) {
+    if (i) {
+        return foo1(--i);
+    } else {
+        return foo1(i);
+    }
+}
+
+
+namespace very_very_very_very_very_very_long_namespace {
+namespace very_very_very_very_very_very_long_namespace {
+namespace very_very_very_very_very_very_long_namespace {
+namespace very_very_very_very_very_very_long_namespace {
+namespace very_very_very_very_very_very_long_namespace {
+namespace very_very_very_very_very_very_long_namespace {
+namespace very_very_very_very_very_very_long_namespace {
+namespace very_very_very_very_very_very_long_namespace {
+namespace very_very_very_very_very_very_long_namespace {
+namespace very_very_very_very_very_very_long_namespace {
+    BOOST_ST_API BOOST_NOINLINE stacktrace get_backtrace_from_nested_namespaces() {
+        return stacktrace();
+    }
+}}}}}}}}}}
+
+BOOST_ST_API BOOST_NOINLINE stacktrace return_from_nested_namespaces() {
+    using very_very_very_very_very_very_long_namespace::very_very_very_very_very_very_long_namespace::very_very_very_very_very_very_long_namespace
+        ::very_very_very_very_very_very_long_namespace::very_very_very_very_very_very_long_namespace::very_very_very_very_very_very_long_namespace
+        ::very_very_very_very_very_very_long_namespace::very_very_very_very_very_very_long_namespace::very_very_very_very_very_very_long_namespace
+        ::very_very_very_very_very_very_long_namespace::get_backtrace_from_nested_namespaces;
+
+    return get_backtrace_from_nested_namespaces();
+}
+
+BOOST_ST_API BOOST_NOINLINE boost::stacktrace::stacktrace make_some_stacktrace1_impl(int d = 0) {
+    boost::stacktrace::stacktrace result(0, 4);
+    if (result.size() < 4) {
+        if (d > 4) throw std::runtime_error("Stack is not growing in test OR stacktrace fails to work in `bar1` function.");
+        return make_some_stacktrace1_impl(d + 1);
+    }
+    return result;
+}
+
+BOOST_ST_API BOOST_NOINLINE boost::stacktrace::stacktrace make_some_stacktrace2_impl(int d = 0) {
+    boost::stacktrace::stacktrace result(0, 4);
+    if (result.size() < 4) {
+        if (d > 4) throw std::runtime_error("Stack is not growing in test OR stacktrace fails to work in `bar2` function.");
+        return make_some_stacktrace2_impl(d + 1);
+    }
+    return result;
+}
+
+BOOST_ST_API BOOST_NOINLINE boost::stacktrace::stacktrace make_some_stacktrace1() {
+    boost::stacktrace::stacktrace result = make_some_stacktrace1_impl();
+    return result;
+}
+
+BOOST_ST_API BOOST_NOINLINE boost::stacktrace::stacktrace make_some_stacktrace2() {
+    boost::stacktrace::stacktrace result = make_some_stacktrace2_impl();
+    return result;
+}
+
diff --git a/src/boost/libs/stacktrace/test/test_impl.hpp b/src/boost/libs/stacktrace/test/test_impl.hpp
new file mode 100644
index 000000000..3e6d1254c
--- /dev/null
+++ b/src/boost/libs/stacktrace/test/test_impl.hpp
@@ -0,0 +1,58 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+
+#include <boost/stacktrace/stacktrace.hpp>
+
+#if defined(BOOST_LEXICAL_CAST_TRY_LEXICAL_CONVERT_HPP) || defined(BOOST_LEXICAL_CAST_BAD_LEXICAL_CAST_HPP)
+#error "LexicalCast headers leaked into the boost/stacktrace/stacktrace.hpp"
+#endif
+
+#if !defined(BOOST_USE_WINDOWS_H) && defined(_WINDOWS_H)
+#error "windows.h header leaked into the boost/stacktrace/stacktrace.hpp"
+#endif
+
+#include <stdexcept>
+
+using namespace boost::stacktrace;
+
+#ifdef BOOST_STACKTRACE_DYN_LINK
+# ifdef BOOST_STACKTRACE_TEST_IMPL_LIB
+#   define BOOST_ST_API BOOST_SYMBOL_EXPORT
+# else
+#   define BOOST_ST_API BOOST_SYMBOL_IMPORT
+# endif
+#else
+# ifdef BOOST_STACKTRACE_TEST_EXPORTS_TABLE_USAGE
+#   define BOOST_ST_API BOOST_SYMBOL_VISIBLE
+# else
+#   define BOOST_ST_API
+# endif
+#endif
+
+typedef std::pair<boost::stacktrace::stacktrace, boost::stacktrace::stacktrace> st_pair;
+typedef st_pair (*foo1_t)(int i);
+BOOST_ST_API st_pair function_from_library(int i, foo1_t foo1);
+BOOST_ST_API boost::stacktrace::stacktrace return_from_nested_namespaces();
+BOOST_ST_API boost::stacktrace::stacktrace make_some_stacktrace1();
+BOOST_ST_API boost::stacktrace::stacktrace make_some_stacktrace2();
+
+#ifdef BOOST_STACKTRACE_TEST_EXPORTS_TABLE_USAGE
+  BOOST_SYMBOL_VISIBLE
+#endif
+inline st_pair function_from_main_translation_unit(int i) {
+    if (i) {
+        return function_from_library(i - 1, function_from_main_translation_unit);
+    }
+
+    std::pair<stacktrace, stacktrace> ret;
+    try {
+        throw std::logic_error("test");
+    } catch (const std::logic_error& /*e*/) {
+        ret.second = stacktrace();
+        return ret;
+    }
+}
diff --git a/src/boost/libs/stacktrace/test/test_noop.cpp b/src/boost/libs/stacktrace/test/test_noop.cpp
new file mode 100644
index 000000000..997dcfe0c
--- /dev/null
+++ b/src/boost/libs/stacktrace/test/test_noop.cpp
@@ -0,0 +1,58 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include "test_impl.hpp"
+
+#include <boost/stacktrace.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <stdexcept>
+
+
+#include <boost/functional/hash.hpp>
+
+using boost::stacktrace::stacktrace;
+using boost::stacktrace::frame;
+
+void test_deeply_nested_namespaces() {
+    BOOST_TEST(return_from_nested_namespaces().size() == 0);
+    BOOST_TEST(return_from_nested_namespaces().empty());
+    BOOST_TEST(!return_from_nested_namespaces());
+}
+
+void test_nested() {
+    std::pair<stacktrace, stacktrace> res = function_from_library(15, function_from_main_translation_unit);
+
+    BOOST_TEST(!res.first);
+    BOOST_TEST(res.first.empty());
+    BOOST_TEST(res.first.size() == 0);
+
+    BOOST_TEST(res.second <= res.first);
+    BOOST_TEST(res.second >= res.first);
+    BOOST_TEST(res.second == res.first);
+    BOOST_TEST(res.second == res.first);
+    BOOST_TEST(!(res.second > res.first));
+}
+
+void test_empty_frame() {
+    boost::stacktrace::frame empty_frame;
+    BOOST_TEST(!empty_frame);
+    BOOST_TEST(empty_frame.source_file() == "");
+    BOOST_TEST(empty_frame.name() == "");
+    BOOST_TEST(empty_frame.source_line() == 0);
+
+    boost::stacktrace::frame f(0);
+    BOOST_TEST(f.name() == "");
+    BOOST_TEST(f.source_file() == "");
+    BOOST_TEST(f.source_line() == 0);
+}
+
+int main() {
+    test_deeply_nested_namespaces();
+    test_nested();
+    test_empty_frame();
+
+    return boost::report_errors();
+}
diff --git a/src/boost/libs/stacktrace/test/test_num_conv.cpp b/src/boost/libs/stacktrace/test/test_num_conv.cpp
new file mode 100644
index 000000000..dbe0b23cb
--- /dev/null
+++ b/src/boost/libs/stacktrace/test/test_num_conv.cpp
@@ -0,0 +1,71 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/stacktrace/detail/to_dec_array.hpp>
+#include <boost/stacktrace/detail/to_hex_array.hpp>
+#include <boost/stacktrace/detail/try_dec_convert.hpp>
+
+#include <boost/core/lightweight_test.hpp>
+#include <string>
+#include <iostream>
+
+
+void test_to_hex_array() {
+    const void* ptr = 0;
+    BOOST_TEST(std::string(boost::stacktrace::detail::to_hex_array(ptr).data()).find("0x0") != std::string::npos);
+
+    ptr = reinterpret_cast<const void*>(0x10);
+    BOOST_TEST(std::string(boost::stacktrace::detail::to_hex_array(ptr).data()).find("10") != std::string::npos);
+
+    ptr = reinterpret_cast<void*>(0x19);
+    BOOST_TEST(std::string(boost::stacktrace::detail::to_hex_array(ptr).data()).find("19") != std::string::npos);
+
+    ptr = reinterpret_cast<void*>(0x999999);
+    BOOST_TEST(std::string(boost::stacktrace::detail::to_hex_array(ptr).data()).find("999999") != std::string::npos);
+}
+
+void test_to_dec_array() {
+    BOOST_TEST_EQ(std::string(boost::stacktrace::detail::to_dec_array(0).data()), std::string("0"));
+    BOOST_TEST_EQ(std::string(boost::stacktrace::detail::to_dec_array(10).data()), std::string("10"));
+    BOOST_TEST_EQ(std::string(boost::stacktrace::detail::to_dec_array(19).data()), std::string("19"));
+    BOOST_TEST_EQ(std::string(boost::stacktrace::detail::to_dec_array(999999).data()), std::string("999999"));
+}
+
+void test_try_dec_convert() {
+    std::size_t res = 0;
+
+    BOOST_TEST(boost::stacktrace::detail::try_dec_convert("0", res));
+    BOOST_TEST(res == 0);
+
+    BOOST_TEST(boost::stacktrace::detail::try_dec_convert("+0", res));
+    BOOST_TEST(res == 0);
+
+    BOOST_TEST(boost::stacktrace::detail::try_dec_convert("10", res));
+    BOOST_TEST(res == 10);
+
+    BOOST_TEST(boost::stacktrace::detail::try_dec_convert("19", res));
+    BOOST_TEST(res == 19);
+
+    BOOST_TEST(boost::stacktrace::detail::try_dec_convert("+19", res));
+    BOOST_TEST(res == 19);
+
+    BOOST_TEST(boost::stacktrace::detail::try_dec_convert("9999", res));
+    BOOST_TEST(res == 9999);
+
+    BOOST_TEST(!boost::stacktrace::detail::try_dec_convert("q", res));
+    BOOST_TEST(!boost::stacktrace::detail::try_dec_convert("0z", res));
+    BOOST_TEST(!boost::stacktrace::detail::try_dec_convert("0u", res));
+    BOOST_TEST(!boost::stacktrace::detail::try_dec_convert("+0u", res));
+}
+
+
+int main() {
+    test_to_hex_array();
+    test_to_dec_array();
+    test_try_dec_convert();
+
+    return boost::report_errors();
+}
diff --git a/src/boost/libs/stacktrace/test/test_void_ptr_cast.cpp b/src/boost/libs/stacktrace/test/test_void_ptr_cast.cpp
new file mode 100644
index 000000000..5e569649a
--- /dev/null
+++ b/src/boost/libs/stacktrace/test/test_void_ptr_cast.cpp
@@ -0,0 +1,79 @@
+// Copyright 2017 Antony Polukhin.
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt
+// or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/stacktrace/detail/void_ptr_cast.hpp>
+
+#include <boost/core/lightweight_test.hpp>
+
+int foo1_func(int) { return 0; }
+void foo2_func(int, int, ...) {}
+
+struct test_struct {
+    int foo1_memb(int) const { return 0; }
+    void foo2_memb(int, int, ...) {}
+};
+
+template <class F1, class F2>
+void test(F1 foo1, F2 foo2) {
+    using boost::stacktrace::detail::void_ptr_cast;
+
+    typedef void(*void_f_ptr)();
+
+    // Function/variable to void(*)()
+    void_f_ptr fp1 = void_ptr_cast<void_f_ptr>(foo1);
+    void_f_ptr fp2 = void_ptr_cast<void_f_ptr>(foo2);
+    BOOST_TEST(fp1);
+    BOOST_TEST(fp2);
+    BOOST_TEST(fp1 != fp2);
+
+    // Function/variable to void*
+    void* vp1 = void_ptr_cast<void*>(foo1);
+    void* vp2 = void_ptr_cast<void*>(foo2);
+    BOOST_TEST(vp1);
+    BOOST_TEST(vp2);
+    BOOST_TEST(vp1 != vp2);
+
+    // void* to void(*)()
+    void_f_ptr fp1_2 = void_ptr_cast<void_f_ptr>(vp1);
+    void_f_ptr fp2_2 = void_ptr_cast<void_f_ptr>(vp2);
+    BOOST_TEST(fp1_2);
+    BOOST_TEST(fp2_2);
+    BOOST_TEST(fp1_2 != fp2_2);
+    BOOST_TEST(fp1 == fp1_2);
+    BOOST_TEST(fp2 == fp2_2);
+
+    // void(*)() to void*
+    BOOST_TEST(void_ptr_cast<void*>(fp1) == vp1);
+    BOOST_TEST(void_ptr_cast<void*>(fp2) == vp2);
+
+    // void(*)() to function/variable
+    BOOST_TEST(void_ptr_cast<F1>(fp1) == foo1);
+    BOOST_TEST(void_ptr_cast<F2>(fp2) == foo2);
+
+    // void* to function/variable
+    BOOST_TEST(void_ptr_cast<F1>(vp1) == foo1);
+    BOOST_TEST(void_ptr_cast<F2>(vp2) == foo2);
+}
+
+int main() {
+    // Testing for functions
+    test(foo1_func, foo2_func);
+
+    typedef void(func_t)();
+    test(
+        boost::stacktrace::detail::void_ptr_cast<func_t* const>(foo1_func),
+        boost::stacktrace::detail::void_ptr_cast<func_t* const>(foo2_func)
+    );
+
+    // Testing for variables (just in case...)
+    int i = 0;
+    double j= 1;
+    test(&i, &j);
+
+
+
+    return boost::report_errors();
+}
diff --git a/src/boost/libs/stacktrace/test/thread_safety_checking.cpp b/src/boost/libs/stacktrace/test/thread_safety_checking.cpp
new file mode 100644
index 000000000..ce43a06dc
--- /dev/null
+++ b/src/boost/libs/stacktrace/test/thread_safety_checking.cpp
@@ -0,0 +1,72 @@
+// Copyright Antony Polukhin, 2016-2020.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include "test_impl.hpp"
+#include <boost/stacktrace/stacktrace_fwd.hpp>
+
+#include <sstream>
+
+#include <boost/stacktrace.hpp>
+#include <boost/thread.hpp>
+#include <boost/optional.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+#include <boost/timer/timer.hpp>
+
+using boost::stacktrace::stacktrace;
+
+
+void main_test_loop() {
+    std::size_t loops = 100;
+    int Depth = 25;
+
+    boost::optional<std::pair<stacktrace, stacktrace> > ethalon;
+    std::stringstream ss_ethalon;
+
+    while (--loops) {
+        std::pair<stacktrace, stacktrace> res = function_from_library(Depth, function_from_main_translation_unit);
+        if (ethalon) {
+            BOOST_TEST(res == *ethalon);
+
+            std::stringstream ss;
+            ss << res.first;
+            BOOST_TEST(ss.str() == ss_ethalon.str());
+        } else {
+            ethalon = res;
+            ss_ethalon << ethalon->first;
+        }
+    }
+}
+
+#if defined(BOOST_STACKTRACE_TEST_COM_PREINIT_MT) || defined(BOOST_STACKTRACE_TEST_COM_PREINIT_ST)
+#   include <windows.h>
+#   include "dbgeng.h"
+#endif
+
+int main() {
+#if defined(BOOST_STACKTRACE_TEST_COM_PREINIT_MT)
+    ::CoInitializeEx(0, COINIT_MULTITHREADED);
+#elif defined(BOOST_STACKTRACE_TEST_COM_PREINIT_ST)
+    ::CoInitializeEx(0, COINIT_APARTMENTTHREADED);
+#endif
+
+    boost::timer::auto_cpu_timer t;
+
+    boost::thread t1(main_test_loop);
+    boost::thread t2(main_test_loop);
+    boost::thread t3(main_test_loop);
+    main_test_loop();
+
+    t1.join();
+    t2.join();
+    t3.join();
+
+#if defined(BOOST_STACKTRACE_TEST_COM_PREINIT_MT) || defined(BOOST_STACKTRACE_TEST_COM_PREINIT_ST)
+    ::CoUninitialize();
+#endif
+
+    return boost::report_errors();
+}
diff --git a/src/boost/libs/stacktrace/test/torture.cpp b/src/boost/libs/stacktrace/test/torture.cpp
new file mode 100644
index 000000000..2df475deb
--- /dev/null
+++ b/src/boost/libs/stacktrace/test/torture.cpp
@@ -0,0 +1,26 @@
+// Copyright Antony Polukhin, 2018.
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+
+// This file tests for memory leaks. Some of the backtrace implementations
+// consume memory for internal needs and incorrect usage of those implementations
+// could lead to segfaults. Sanitizers do not detect such misuse, but this
+// test and `top` does.
+
+
+#include <boost/stacktrace.hpp>
+#include <iostream>
+
+#include "test_impl.hpp"
+
+int main() {
+  int result = 0;
+  for (unsigned i = 0; i < 10000000; ++i) {
+    result += make_some_stacktrace1()[0].source_line();
+  }
+
+  std::cerr << "OK\nLines count " << result;
+}