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Import backtrace-cpp and integrate it into our main executable

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Upstream release
https://github.com/bombela/backward-cpp/archive/v1.3.tar.gz
This commit is contained in:
Simon Fels 2018-05-18 17:46:38 +02:00
commit e6a0821cfc
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add_subdirectory(process-cpp-minimal)
add_subdirectory(android-emugl)
add_subdirectory(xdg)
add_subdirectory(backtrace-cpp)

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build*/
*.pyc

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language: cpp
compiler:
- gcc
- clang
addons:
apt:
packages:
- valgrind
install:
- DEPS_DIR="${TRAVIS_BUILD_DIR}/deps"
- mkdir ${DEPS_DIR} && cd ${DEPS_DIR}
- CMAKE_URL="http://www.cmake.org/files/v3.3/cmake-3.3.2-Linux-x86_64.tar.gz"
- mkdir cmake && travis_retry wget --no-check-certificate --quiet -O - ${CMAKE_URL} | tar --strip-components=1 -xz -C cmake
- export PATH=${DEPS_DIR}/cmake/bin:${PATH}
- pip install --user conan && export PATH=$PATH:$HOME/.local/bin
- cd ${TRAVIS_BUILD_DIR}
- mkdir build && cd build
- cmake .. -DBACKWARD_TESTS=ON
- cmake --build .
script:
- valgrind ctest .. --verbose
- cd ${TRAVIS_BUILD_DIR} && conan test_package --build=outdated

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#
# BackwardMacros.cmake
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
###############################################################################
# OPTIONS
###############################################################################
set(STACK_WALKING_UNWIND TRUE CACHE BOOL
"Use compiler's unwind API")
set(STACK_WALKING_BACKTRACE FALSE CACHE BOOL
"Use backtrace from (e)glibc for stack walking")
set(STACK_DETAILS_AUTO_DETECT TRUE CACHE BOOL
"Auto detect backward's stack details dependencies")
set(STACK_DETAILS_BACKTRACE_SYMBOL FALSE CACHE BOOL
"Use backtrace from (e)glibc for symbols resolution")
set(STACK_DETAILS_DW FALSE CACHE BOOL
"Use libdw to read debug info")
set(STACK_DETAILS_BFD FALSE CACHE BOOL
"Use libbfd to read debug info")
###############################################################################
# CONFIGS
###############################################################################
if (${STACK_DETAILS_AUTO_DETECT})
include(FindPackageHandleStandardArgs)
# find libdw
find_path(LIBDW_INCLUDE_DIR NAMES "elfutils/libdw.h" "elfutils/libdwfl.h")
find_library(LIBDW_LIBRARY dw)
set(LIBDW_INCLUDE_DIRS ${LIBDW_INCLUDE_DIR} )
set(LIBDW_LIBRARIES ${LIBDW_LIBRARY} )
find_package_handle_standard_args(libdw DEFAULT_MSG
LIBDW_LIBRARY LIBDW_INCLUDE_DIR)
mark_as_advanced(LIBDW_INCLUDE_DIR LIBDW_LIBRARY)
# find libbfd
find_path(LIBBFD_INCLUDE_DIR NAMES "bfd.h")
find_path(LIBDL_INCLUDE_DIR NAMES "dlfcn.h")
find_library(LIBBFD_LIBRARY bfd)
find_library(LIBDL_LIBRARY dl)
set(LIBBFD_INCLUDE_DIRS ${LIBBFD_INCLUDE_DIR} ${LIBDL_INCLUDE_DIR})
set(LIBBFD_LIBRARIES ${LIBBFD_LIBRARY} ${LIBDL_LIBRARY})
find_package_handle_standard_args(libbfd DEFAULT_MSG
LIBBFD_LIBRARY LIBBFD_INCLUDE_DIR
LIBDL_LIBRARY LIBDL_INCLUDE_DIR)
mark_as_advanced(LIBBFD_INCLUDE_DIR LIBBFD_LIBRARY
LIBDL_INCLUDE_DIR LIBDL_LIBRARY)
if (LIBDW_FOUND)
LIST(APPEND _BACKWARD_INCLUDE_DIRS ${LIBDW_INCLUDE_DIRS})
LIST(APPEND BACKWARD_LIBRARIES ${LIBDW_LIBRARIES})
set(STACK_DETAILS_DW TRUE)
set(STACK_DETAILS_BFD FALSE)
set(STACK_DETAILS_BACKTRACE_SYMBOL FALSE)
elseif(LIBBFD_FOUND)
LIST(APPEND _BACKWARD_INCLUDE_DIRS ${LIBBFD_INCLUDE_DIRS})
LIST(APPEND BACKWARD_LIBRARIES ${LIBBFD_LIBRARIES})
set(STACK_DETAILS_DW FALSE)
set(STACK_DETAILS_BFD TRUE)
set(STACK_DETAILS_BACKTRACE_SYMBOL FALSE)
else()
set(STACK_DETAILS_DW FALSE)
set(STACK_DETAILS_BFD FALSE)
set(STACK_DETAILS_BACKTRACE_SYMBOL TRUE)
endif()
else()
if (STACK_DETAILS_DW)
LIST(APPEND BACKWARD_LIBRARIES dw)
endif()
if (STACK_DETAILS_BFD)
LIST(APPEND BACKWARD_LIBRARIES bfd dl)
endif()
endif()
macro(map_definitions var_prefix define_prefix)
foreach(def ${ARGN})
if (${${var_prefix}${def}})
LIST(APPEND BACKWARD_DEFINITIONS "${define_prefix}${def}=1")
else()
LIST(APPEND BACKWARD_DEFINITIONS "${define_prefix}${def}=0")
endif()
endforeach()
endmacro()
if (NOT BACKWARD_DEFINITIONS)
map_definitions("STACK_WALKING_" "BACKWARD_HAS_" UNWIND BACKTRACE)
map_definitions("STACK_DETAILS_" "BACKWARD_HAS_" BACKTRACE_SYMBOL DW BFD)
endif()
foreach(def ${BACKWARD_DEFINITIONS})
message(STATUS "${def}")
endforeach()
find_path(BACKWARD_INCLUDE_DIR backward.hpp PATHS ${CMAKE_CURRENT_LIST_DIR})
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Backward
REQUIRED_VARS
BACKWARD_INCLUDE_DIR
BACKWARD_LIBRARIES
)
list(APPEND _BACKWARD_INCLUDE_DIRS ${BACKWARD_INCLUDE_DIR})
macro(add_backward target)
target_include_directories(${target} PRIVATE ${_BACKWARD_INCLUDE_DIRS})
set_property(TARGET ${target} APPEND PROPERTY COMPILE_DEFINITIONS ${BACKWARD_DEFINITIONS})
set_property(TARGET ${target} APPEND PROPERTY LINK_LIBRARIES ${BACKWARD_LIBRARIES})
endmacro()
set(BACKWARD_INCLUDE_DIRS ${_BACKWARD_INCLUDE_DIRS} CACHE INTERNAL "_BACKWARD_INCLUDE_DIRS")
set(BACKWARD_DEFINITIONS ${BACKWARD_DEFINITIONS} CACHE INTERNAL "BACKWARD_DEFINITIONS")
set(BACKWARD_LIBRARIES ${BACKWARD_LIBRARIES} CACHE INTERNAL "BACKWARD_LIBRARIES")
mark_as_advanced(_BACKWARD_INCLUDE_DIRS BACKWARD_DEFINITIONS BACKWARD_LIBRARIES)
if (NOT TARGET Backward::Backward)
add_library(Backward::Backward INTERFACE IMPORTED)
set_target_properties(Backward::Backward PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${_BACKWARD_INCLUDE_DIRS}"
INTERFACE_LINK_LIBRARIES "${BACKWARD_LIBRARIES}"
INTERFACE_COMPILE_DEFINITIONS "${BACKWARD_DEFINITIONS}"
)
endif()

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#
# CMakeLists.txt
# Copyright 2013 Google Inc. All Rights Reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
cmake_minimum_required(VERSION 2.8.12)
project(backward CXX)
include(BackwardConfig.cmake)
set(CMAKE_CXX_STANDARD_REQUIRED True)
set(CMAKE_CXX_STANDARD 11)
###############################################################################
# COMPILER FLAGS
###############################################################################
if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR CMAKE_COMPILER_IS_GNUCXX)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -pedantic-errors")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g")
endif()
###############################################################################
# BACKWARD OBJECT
###############################################################################
add_library(backward_object OBJECT backward.cpp)
target_compile_definitions(backward_object PRIVATE ${BACKWARD_DEFINITIONS})
target_include_directories(backward_object PRIVATE ${BACKWARD_INCLUDE_DIRS})
set(BACKWARD_ENABLE $<TARGET_OBJECTS:backward_object> CACHE STRING
"Link with this object to setup backward automatically")
###############################################################################
# BACKWARD LIBRARY (Includes backward.cpp)
###############################################################################
option(BACKWARD_SHARED "Build dynamic backward-cpp shared lib" OFF)
if(BACKWARD_SHARED)
set(libtype SHARED)
endif()
add_library(backward ${libtype} backward.cpp)
target_compile_definitions(backward PUBLIC ${BACKWARD_DEFINITIONS})
target_include_directories(backward PUBLIC ${BACKWARD_INCLUDE_DIRS})
###############################################################################
# TESTS
###############################################################################
if(BACKWARD_TESTS)
enable_testing()
add_library(test_main SHARED test/_test_main.cpp)
macro(backward_add_test src)
get_filename_component(name ${src} NAME_WE)
set(test_name "test_${name}")
add_executable(${test_name} ${src} ${ARGN})
target_link_libraries(${test_name} PRIVATE Backward::Backward test_main)
add_test(NAME ${name} COMMAND ${test_name})
endmacro()
# Tests without backward.cpp
set(TESTS
test
stacktrace
rectrace
select_signals
)
foreach(test ${TESTS})
backward_add_test(test/${test}.cpp)
endforeach()
# Tests with backward.cpp
set(TESTS
suicide
)
foreach(test ${TESTS})
backward_add_test(test/${test}.cpp ${BACKWARD_ENABLE})
endforeach()
endif()
install(
FILES "backward.hpp"
DESTINATION ${CMAKE_INSTALL_PREFIX}/include
)
install(
FILES "BackwardConfig.cmake"
DESTINATION ${CMAKE_INSTALL_PREFIX}/lib/backward
)

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Copyright 2013 Google Inc. All Rights Reserved.
The MIT License (MIT)
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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Backward-cpp [![badge](https://img.shields.io/badge/conan.io-backward%2F0.0.0-green.svg?logo=data:image/png;base64%2CiVBORw0KGgoAAAANSUhEUgAAAA4AAAAOCAMAAAAolt3jAAAA1VBMVEUAAABhlctjlstkl8tlmMtlmMxlmcxmmcxnmsxpnMxpnM1qnc1sn85voM91oM11oc1xotB2oc56pNF6pNJ2ptJ8ptJ8ptN9ptN8p9N5qNJ9p9N9p9R8qtOBqdSAqtOAqtR%2BrNSCrNJ/rdWDrNWCsNWCsNaJs9eLs9iRvNuVvdyVv9yXwd2Zwt6axN6dxt%2Bfx%2BChyeGiyuGjyuCjyuGly%2BGlzOKmzOGozuKoz%2BKqz%2BOq0OOv1OWw1OWw1eWx1eWy1uay1%2Baz1%2Baz1%2Bez2Oe02Oe12ee22ujUGwH3AAAAAXRSTlMAQObYZgAAAAFiS0dEAIgFHUgAAAAJcEhZcwAACxMAAAsTAQCanBgAAAAHdElNRQfgBQkREyOxFIh/AAAAiklEQVQI12NgAAMbOwY4sLZ2NtQ1coVKWNvoc/Eq8XDr2wB5Ig62ekza9vaOqpK2TpoMzOxaFtwqZua2Bm4makIM7OzMAjoaCqYuxooSUqJALjs7o4yVpbowvzSUy87KqSwmxQfnsrPISyFzWeWAXCkpMaBVIC4bmCsOdgiUKwh3JojLgAQ4ZCE0AMm2D29tZwe6AAAAAElFTkSuQmCC)](http://www.conan.io/source/backward/0.0.0/Manu343726/testing) [![Build Status](https://travis-ci.org/bombela/backward-cpp.svg?branch=master)](https://travis-ci.org/cwbombela/backward-cpp)
============
Backward is a beautiful stack trace pretty printer for C++.
If you are bored to see this:
![default trace](doc/rude.png)
Backward will spice it up for you:
![pretty stackstrace](doc/pretty.png)
There is not much to say. Of course it will be able to display the code
snippets only if the source files are accessible (else see trace #4 in the
example).
All "Source" lines and code snippet prefixed by a pipe "|" are frames inline
the next frame.
You can see that for the trace #1 in the example, the function
`you_shall_not_pass()` was inlined in the function `...read2::do_test()` by the
compiler.
##Installation
#### Install backward.hpp
Backward is a header only library. So installing Backward is easy, simply drop
a copy of `backward.hpp` along with your other source files in your C++ project.
You can also use a git submodule or really any other way that best fits your
environment, as long as you can include `backward.hpp`.
#### Install backward.cpp
If you want Backward to automatically print a stack trace on most common fatal
errors (segfault, abort, un-handled exception...), simply add a copy of
`backward.cpp` to your project, and don't forget to tell your build system.
The code in `backward.cpp` is trivial anyway, you can simply copy what it's
doing at your convenience.
##Configuration & Dependencies
### Integration with CMake
If you are using CMake and want to use its configuration abilities to save
you the trouble, you can easily integrate Backward, depending on how you obtained
the library.
#### As a subdirectory:
In this case you have a subdirectory containing the whole repository of Backward
(eg.: using git-submodules), in this case you can do:
```
add_subdirectory(/path/to/backward-cpp)
# This will add backward.cpp to your target
add_executable(mytarget mysource.cpp ${BACKWARD_ENABLE})
# This will add libraries, definitions and include directories needed by backward
# by setting each property on the target.
add_backward(mytarget)
```
#### Modifying CMAKE_MODULE_PATH
In this case you can have Backward installed as a subdirectory:
```
list(APPEND CMAKE_MODULE_PATH /path/to/backward-cpp)
find_package(Backward)
# This will add libraries, definitions and include directories needed by backward
# through an IMPORTED target.
target_link_libraries(mytarget PUBLIC Backward::Backward)
```
Notice that this is equivalent to using the the approach that uses `add_subdirectory()`,
however it uses cmake's [imported target](https://cmake.org/Wiki/CMake/Tutorials/Exporting_and_Importing_Targets) mechanism.
#### Installation through a regular package manager
In this case you have obtained Backward through a package manager.
Packages currently available:
- [conda-forge](https://anaconda.org/conda-forge/backward-cpp)
```
find_package(Backward)
# This will add libraries, definitions and include directories needed by backward
# through an IMPORTED target.
target_link_libraries(mytarget PUBLIC Backward::Backward)
```
### Compile with debug info
You need to compile your project with generation of debug symbols enabled,
usually `-g` with clang++ and g++.
Note that you can use `-g` with any level of optimization, with modern debug
information encoding like DWARF, it only takes space in the binary (it's not
loaded in memory until your debugger or Backward makes use of it, don't worry),
and it doesn't impact the code generation (at least on GNU/Linux x86\_64 for
what I know).
If you are missing debug information, the stack trace will lack details about
your sources.
### Libraries to read the debug info
Backward support pretty printed stack traces on GNU/Linux only, it will compile
fine under other platforms but will not do anything. **Pull requests are
welcome :)**
Also, by default you will get a really basic stack trace, based on the
`backtrace_symbols` API:
![default trace](doc/nice.png)
You will need to install some dependencies to get the ultimate stack trace. Two
libraries are currently supported, the only difference is which one is the
easiest for you to install, so pick your poison:
#### libbfd from the [GNU/binutils](http://www.gnu.org/software/binutils/)
apt-get install binutils-dev (or equivalent)
And do not forget to link with the lib: `g++/clang++ -lbfd ...`
Then define the following before every inclusion of `backward.hpp` (don't
forget to update `backward.cpp` as well):
#define BACKWARD_HAS_BFD 1
#### libdw from the [elfutils](https://fedorahosted.org/elfutils/)
apt-get install libdw-dev (or equivalent)
And do not forget to link with the lib and inform Backward to use it:
#define BACKWARD_HAS_DW 1
Of course you can simply add the define (`-DBACKWARD_HAS_...=1`) and the
linkage details in your build system and even auto-detect which library is
installed, it's up to you.
That'ss it, you are all set, you should be getting nice stack traces like the
one at the beginning of this document.
## API
If you don't want to limit yourself to the defaults offered by `backward.cpp`,
and you want to take some random stack traces for whatever reason and pretty
print them the way you love or you decide to send them all to your buddies over
the Internet, you will appreciate the simplicity of Backward's API.
### Stacktrace
The StackTrace class lets you take a "snapshot" of the current stack.
You can use it like this:
```c++
using namespace backward;
StackTrace st; st.load_here(32);
Printer p; p.print(st);
```
The public methods are:
```c++
class StackTrace { public:
// Take a snapshot of the current stack, with at most "trace_cnt_max"
// traces in it. The first trace is the most recent (ie the current
// frame). You can also provide a trace address to load_from() assuming
// the address is a valid stack frame (useful for signal handling traces).
// Both function return size().
size_t load_here(size_t trace_cnt_max)
size_t load_from(void* address, size_t trace_cnt_max)
// The number of traces loaded. This can be less than "trace_cnt_max".
size_t size() const
// A unique id for the thread in which the trace was taken. The value
// 0 means the stack trace comes from the main thread.
size_t thread_id() const
// Retrieve a trace by index. 0 is the most recent trace, size()-1 is
// the oldest one.
Trace operator[](size_t trace_idx)
};
```
### TraceResolver
The `TraceResolver` does the heavy lifting, and intends to transform a simple
`Trace` from its address into a fully detailed `ResolvedTrace` with the
filename of the source, line numbers, inlined functions and so on.
You can use it like this:
```c++
using namespace backward;
StackTrace st; st.load_here(32);
TraceResolver tr; tr.load_stacktrace(st);
for (size_t i = 0; i < st.size(); ++i) {
ResolvedTrace trace = tr.resolve(st[i]);
std::cout << "#" << i
<< " " << trace.object_filename
<< " " << trace.object_function
<< " [" << trace.addr << "]"
<< std::endl;
}
```
The public methods are:
```c++
class TraceResolver { public:
// Pre-load whatever is necessary from the stack trace.
template <class ST>
void load_stacktrace(ST&)
// Resolve a trace. It takes a ResolvedTrace, because a `Trace` is
// implicitly convertible to it.
ResolvedTrace resolve(ResolvedTrace t)
};
```
### SnippetFactory
The SnippetFactory is a simple helper class to automatically load and cache
source files in order to extract code snippets.
```c++
class SnippetFactory { public:
// A snippet is a list of line numbers and line contents.
typedef std::vector<std::pair<size_t, std::string> > lines_t;
// Return a snippet starting at line_start with up to context_size lines.
lines_t get_snippet(const std::string& filename,
size_t line_start, size_t context_size)
// Return a combined snippet from two different locations and combine them.
// context_size / 2 lines will be extracted from each location.
lines_t get_combined_snippet(
const std::string& filename_a, size_t line_a,
const std::string& filename_b, size_t line_b,
size_t context_size)
// Tries to return a unified snippet if the two locations from the same
// file are close enough to fit inside one context_size, else returns
// the equivalent of get_combined_snippet().
lines_t get_coalesced_snippet(const std::string& filename,
size_t line_a, size_t line_b, size_t context_size)
```
### Printer
A simpler way to pretty print a stack trace to the terminal. It will
automatically resolve the traces for you:
```c++
using namespace backward;
StackTrace st; st.load_here(32);
Printer p;
p.object = true;
p.color = false;
p.address = true;
p.print(st, stderr);
```
You can set a few options:
```c++
class Printer { public:
// Print a little snippet of code if possible.
bool snippet = true;
// Colorize the trace (only set a color when printing on a terminal)
bool color = true;
// Add the addresses of every source location to the trace.
bool address = false;
// Even if there is a source location, prints the object the trace comes
// from as well.
bool object = false;
// Resolve and print a stack trace. It takes a C FILE* object, only because
// it is possible to access the underalying OS-level file descriptor, which
// is then used to determine if the output is a terminal to print in color.
template <typename StackTrace>
FILE* print(StackTrace& st, FILE* os = stderr)
```
### SignalHandling
A simple helper class that registers for you the most common signals and other
callbacks to segfault, hardware exception, un-handled exception etc.
`backward.cpp` simply uses it like that:
```c++
backward::SignalHandling sh;
```
Creating the object registers all the different signals and hooks. Destroying
this object doesn't do anything. It exposes only one method:
```c++
bool loaded() const // true if loaded with success
```
### Trace object
To keep the memory footprint of a loaded `StackTrace` on the low-side, there a
hierarchy of trace object, from a minimal `Trace `to a `ResolvedTrace`.
#### Simple trace
```c++
struct Trace {
void* addr; // address of the trace
size_t idx; // its index (0 == most recent)
};
```
#### Resolved trace
A `ResolvedTrace` should contains a maximum of details about the location of
the trace in the source code. Note that not all fields might be set.
```c++
struct ResolvedTrace: public Trace {
struct SourceLoc {
std::string function;
std::string filename;
size_t line;
size_t col;
};
// In which binary object this trace is located.
std::string object_filename;
// The function in the object that contains the trace. This is not the same
// as source.function which can be an function inlined in object_function.
std::string object_function;
// The source location of this trace. It is possible for filename to be
// empty and for line/col to be invalid (value 0) if this information
// couldn't be deduced, for example if there is no debug information in the
// binary object.
SourceLoc source;
// An optional list of "inliners". All of these sources locations where
// inlined in the source location of the trace (the attribute right above).
// This is especially useful when you compile with optimizations turned on.
typedef std::vector<SourceLoc> source_locs_t;
source_locs_t inliners;
};
```
## Contact and copyright
François-Xavier Bourlet <bombela@gmail.com>
Copyright 2013 Google Inc. All Rights Reserved.
MIT License.
### Disclaimer
Although this project is owned by Google Inc. this is not a Google supported or
affiliated project.

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// Pick your poison.
//
// On GNU/Linux, you have few choices to get the most out of your stack trace.
//
// By default you get:
// - object filename
// - function name
//
// In order to add:
// - source filename
// - line and column numbers
// - source code snippet (assuming the file is accessible)
// Install one of the following library then uncomment one of the macro (or
// better, add the detection of the lib and the macro definition in your build
// system)
// - apt-get install libdw-dev ...
// - g++/clang++ -ldw ...
// #define BACKWARD_HAS_DW 1
// - apt-get install binutils-dev ...
// - g++/clang++ -lbfd ...
// #define BACKWARD_HAS_BFD 1
#include "backward.hpp"
namespace backward {
backward::SignalHandling sh;
} // namespace backward

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#!/bin/bash
COMPILERS_CXX98=`cat<<EOF
gcc-4.4
gcc-4.6
gcc-4.7
gcc-4.8
clang
EOF`
COMPILERS_CXX11=`cat<<EOF
gcc-4.7
gcc-4.8
clang
EOF`
function mkbuild() {
local compiler=$1
local lang=$2
local buildtype=$3
local builddir="$4"
export CC=$compiler
export CXX=`echo $compiler | sed -e 's/clang/clang++/' -e 's/gcc/g++/'`
export CXXFLAGS="-std=$lang"
echo "Creating $builddir"
mkdir $builddir 2>/dev/null
(
cd "$builddir"
cmake -DCMAKE_BUILD_TYPE=$buildtype ..
)
}
function build() {
local builddir=$1
shift
make -C "$builddir" $@
}
function dotest() {
local builddir=$1
shift
make -C "$builddir" test $@
return 0
}
function do_action() {
local lang=$1
local action=$2
shift 2
for compiler in $COMPILERS; do
local builddir="build_${lang}_${compiler}"
if [[ $action == "cmake" ]]; then
buildtype=$1
mkbuild $compiler $lang "$buildtype" "$builddir"
[[ $? != 0 ]] && exit
elif [[ $action == "make" ]]; then
build "$builddir" $@
[[ $? != 0 ]] && exit
elif [[ $action == "test" ]]; then
dotest "$builddir" $@
[[ $? != 0 ]] && exit
elif [[ $action == "clean" ]]; then
rm -r "$builddir"
else
echo "usage: $0 cmake [debug|release|relwithdbg]|make|test|clean"
exit 255
fi
done
}
COMPILERS=$COMPILERS_CXX98
do_action c++98 $@
COMPILERS=$COMPILERS_CXX11
do_action c++11 $@

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from conans import ConanFile, CMake
import os
class BackwardCpp(ConanFile):
settings = 'os', 'compiler', 'build_type', 'arch'
name = 'backward'
url = 'https:77github.com/Manu343726/backward-cpp'
license = 'MIT'
version = '0.0.0'
options = {
'stack_walking_unwind': [True, False],
'stack_walking_backtrace': [True, False],
'stack_details_auto_detect': [True, False],
'stack_details_backtrace_symbol': [True, False],
'stack_details_dw': [True, False],
'stack_details_bfd': [True, False],
'shared': [True, False]
}
default_options = (
'stack_walking_unwind=True',
'stack_walking_backtrace=False',
'stack_details_auto_detect=True',
'stack_details_backtrace_symbol=False',
'stack_details_dw=False',
'stack_details_bfd=False',
'shared=False'
)
exports = 'backward.cpp', 'backward.hpp', 'test/*', 'CMakeLists.txt', 'BackwardConfig.cmake'
generators = 'cmake'
def cmake_option(self, option, prefix = ''):
return '-D{}{}={}'.format(prefix, option.upper(), self.options[option])
def build(self):
cmake = CMake(self.settings)
options = ''
options += self.cmake_option('stack_walking_unwind')
options += self.cmake_option('stack_walking_backtrace')
options += self.cmake_option('stack_details_auto_detect')
options += self.cmake_option('stack_details_backtrace_symbol')
options += self.cmake_option('stack_details_dw')
options += self.cmake_option('stack_details_bfd')
options += self.cmake_option('shared', prefix = 'BACKWARD_')
self.run('cmake {} {} {} -DBACKWARD_TESTS=OFF'.format(self.conanfile_directory, cmake.command_line, options))
self.run('cmake --build . {}'.format(cmake.build_config))
def package(self):
self.copy('backward.hpp', os.path.join('include', 'backward'))
self.copy('*.a', dst='lib')
self.copy('*.so', dst='lib')
self.copy('*.lib', dst='lib')
self.copy('*.dll', dst='lib')
def package_info(self):
self.cpp_info.libs = ['backward']

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/*
* _test_main.cpp
* Copyright 2013 Google Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "test.hpp"
#include <cstdio>
#include <cstdlib>
#include <error.h>
#include <unistd.h>
#include <sys/wait.h>
test::test_registry_t test::test_registry;
using namespace test;
bool run_test(TestBase& test) {
printf("-- running test case: %s\n", test.name);
fflush(stdout);
pid_t child_pid = fork();
if (child_pid == 0) {
exit(static_cast<int>(test.run()));
}
if (child_pid == -1) {
error(EXIT_FAILURE, 0, "unable to fork");
}
int child_status = 0;
waitpid(child_pid, &child_status, 0);
test::TestStatus status;
if (WIFEXITED(child_status)) {
int exit_status = WEXITSTATUS(child_status);
if (exit_status & ~test::STATUS_MASK) {
status = test::FAILED;
} else {
status = static_cast<test::TestStatus>(exit_status);
}
} else if (WIFSIGNALED(child_status)) {
const int signum = WTERMSIG(child_status);
printf("!! signal (%d) %s\n", signum, strsignal(signum));
switch (signum) {
case SIGABRT:
status = test::SIGNAL_ABORT; break;
case SIGSEGV:
case SIGBUS:
status = test::SIGNAL_SEGFAULT; break;
case SIGFPE:
status = test::SIGNAL_DIVZERO; break;
default:
status = test::SIGNAL_UNCAUGHT;
}
} else {
status = test::SUCCESS;
}
if (test.expected_status == test::FAILED) {
return (status & test::FAILED);
}
if (test.expected_status == test::SIGNAL_UNCAUGHT) {
return (status & test::SIGNAL_UNCAUGHT);
}
return status == test.expected_status;
}
int main(int argc, const char* const argv[]) {
size_t success_cnt = 0;
size_t total_cnt = 0;
for (test_registry_t::iterator it = test_registry.begin();
it != test_registry.end(); ++it) {
TestBase& test = **it;
bool consider_test = (argc <= 1);
for (int i = 1; i < argc; ++i) {
if (strcasecmp(argv[i], test.name) == 0) {
consider_test = true;
break;
}
}
if (not consider_test) {
continue;
}
total_cnt += 1;
if (run_test(test)) {
printf("-- test case success: %s\n", test.name);
success_cnt += 1;
} else {
printf("** test case FAILED : %s\n", test.name);
}
}
printf("-- tests passing: %lu/%lu", success_cnt, total_cnt);
if (total_cnt) {
printf(" (%lu%%)\n", success_cnt * 100 / total_cnt);
} else {
printf("\n");
}
return (success_cnt == total_cnt) ? EXIT_SUCCESS : EXIT_FAILURE;
}

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/*
* test/rectrace.cpp
* Copyright 2013 Google Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "backward.hpp"
#include <stdio.h>
#include "test/test.hpp"
using namespace backward;
typedef StackTrace stacktrace_t;
void end_of_our_journey(stacktrace_t& st) {
if (not st.size()) {
st.load_here();
}
}
int rec(stacktrace_t& st, int level) {
if (level <= 1) {
end_of_our_journey(st);
return 0;
}
return rec(st, level - 1);
}
namespace toto {
namespace titi {
struct foo {
union bar {
__attribute__((noinline))
static int trampoline(stacktrace_t& st, int level) {
return rec(st, level);
}
};
};
} // namespace titi
} // namespace toto
TEST (recursion) {
{ // lexical scope.
stacktrace_t st;
const int input = 3;
int r = toto::titi::foo::bar::trampoline(st, input);
std::cout << "rec(" << input << ") == " << r << std::endl;
Printer printer;
// printer.address = true;
printer.object = true;
printer.print(st, stdout);
}
}
int fib(StackTrace& st, int level) {
if (level == 2) {
return 1;
}
if (level <= 1) {
end_of_our_journey(st);
return 0;
}
return fib(st, level - 1) + fib(st, level - 2);
}
TEST (fibrecursive) {
StackTrace st;
const int input = 6;
int r = fib(st, input);
std::cout << "fib(" << input << ") == " << r << std::endl;
Printer printer;
printer.print(st, stdout);
}

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external/backtrace-cpp/test/select_signals.cpp vendored Normal file
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/*
* test/segfault.cpp
* Copyright 2013 Google Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "backward.hpp"
#include <stdio.h>
#include "test/test.hpp"
using namespace backward;
void badass_function() {
char* ptr = (char*)42;
*ptr = 42;
}
TEST_SEGFAULT (pprint_sigsev) {
std::vector<int> signals;
signals.push_back(SIGSEGV);
SignalHandling sh(signals);
std::cout << std::boolalpha << "sh.loaded() == " << sh.loaded() << std::endl;
badass_function();
}
TEST_SEGFAULT (wont_pprint) {
std::vector<int> signals;
signals.push_back(SIGABRT);
SignalHandling sh(signals);
std::cout << std::boolalpha << "sh.loaded() == " << sh.loaded() << std::endl;
badass_function();
}

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/*
* test/stacktrace.cpp
* Copyright 2013 Google Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "backward.hpp"
#include <cstdio>
#include "test/test.hpp"
using namespace backward;
void collect_trace(StackTrace& st) {
st.load_here();
}
TEST (minitrace) {
StackTrace st;
collect_trace(st);
Printer printer;
printer.print(st, stdout);
}
void d(StackTrace& st) {
st.load_here();
}
void c(StackTrace& st) {
return d(st);
}
void b(StackTrace& st) {
return c(st);
}
__attribute__ ((noinline))
void a(StackTrace& st) {
return b(st);
}
TEST (smalltrace) {
StackTrace st;
a(st);
Printer printer;
printer.print(st, stdout);
}

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/*
* test/suicide.cpp
* Copyright 2013 Google Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "backward.hpp"
#include <cstdio>
#include <sys/resource.h>
#include "test/test.hpp"
using namespace backward;
void badass_function()
{
char* ptr = (char*)42;
*ptr = 42;
}
TEST_SEGFAULT (invalid_write)
{
badass_function();
}
int you_shall_not_pass()
{
char* ptr = (char*)42;
int v = *ptr;
return v;
}
TEST_SEGFAULT(invalid_read)
{
int v = you_shall_not_pass();
std::cout << "v=" << v << std::endl;
}
void abort_abort_I_repeat_abort_abort()
{
std::cout << "Jumping off the boat!" << std::endl;
abort();
}
TEST_ABORT (calling_abort)
{
abort_abort_I_repeat_abort_abort();
}
volatile int zero = 0;
int divide_by_zero()
{
std::cout << "And the wild black hole appears..." << std::endl;
int v = 42 / zero;
return v;
}
TEST_DIVZERO (divide_by_zero)
{
int v = divide_by_zero();
std::cout << "v=" << v << std::endl;
}
int bye_bye_stack(int i) {
return bye_bye_stack(i + 1) + bye_bye_stack(i * 2);
}
TEST_SEGFAULT(stackoverflow)
{
struct rlimit limit;
limit.rlim_max = 8096;
setrlimit(RLIMIT_STACK, &limit);
int r = bye_bye_stack(42);
std::cout << "r=" << r << std::endl;
}

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/*
* test/test.cpp
* Copyright 2013 Google Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <iostream>
#include <stdexcept>
#include <cstdlib>
#include "test/test.hpp"
TEST (empty_test) { }
TEST_FAIL_ASSERT (fail_assert) {
ASSERT(1 == 2);
}
TEST_FAIL_ASSERT (fail_assert_ge) {
ASSERT_GE(4, 5);
}
TEST_UNCAUGHT_EXCEPTION (uncaught_exception) {
throw std::runtime_error("some random runtime error");
}
TEST_UNCAUGHT_EXCEPTION (uncaught_exception_int) {
throw 42;
}
TEST_SEGFAULT (segfault) {
char* a = 0;
char b = a[42];
std::cout << "result: " << b << std::endl;
}
TEST_ABORT (abort) {
abort();
}
TEST (catch_int) {
ASSERT_THROW({throw 42;}, int);
}
TEST_FAIL_ASSERT (fail_catch_int) {
ASSERT_THROW({}, int);
}
TEST_FAIL_ASSERT (fail_no_throw) {
ASSERT_NO_THROW({throw 42;});
}
TEST (any_throw) {
ASSERT_ANY_THROW({throw 42;});
}
TEST_FAIL_ASSERT (fail_any_throw) {
ASSERT_ANY_THROW({});
}

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/*
* test/test.hpp
* Copyright 2013 Google Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#pragma once
#ifndef H_54E531F7_9154_454B_BEB9_257408429470
#define H_54E531F7_9154_454B_BEB9_257408429470
#include <exception>
#include <vector>
#include <cstring>
#include <cstdio>
#include <sstream>
#include <string>
namespace test {
struct AssertFailedError: std::exception {
~AssertFailedError() throw() {}
AssertFailedError(const char* filename, int line, const char* errmsg):
basename(_basename(filename)), line(line), errmsg(errmsg) {}
const char* what() const throw() {
if (not _what.size()) {
std::ostringstream ss;
ss << "assertion failed (" << basename << ":" << line;
ss << ") " << errmsg;
_what = ss.str();
}
return _what.c_str();
}
const char* basename;
int line;
const char* errmsg;
mutable std::string _what;
static const char* _basename(const char* filename) {
const char* basename = filename + strlen(filename);
while (basename != filename && *basename != '/') {
basename -= 1;
}
return basename + 1;
}
};
enum TestStatus {
SUCCESS = 0<<0,
FAILED = 1<<0,
ASSERT_FAIL = FAILED | 1<<1,
EXCEPTION_UNCAUGHT = FAILED | 2<<1,
SIGNAL_UNCAUGHT = FAILED | 3<<1,
SIGNAL_SEGFAULT = SIGNAL_UNCAUGHT | 1<<3,
SIGNAL_ABORT = SIGNAL_UNCAUGHT | 2<<3,
SIGNAL_DIVZERO = SIGNAL_UNCAUGHT | 2<<3,
STATUS_MASK = 0x1F
};
struct TestBase {
const char* name;
TestStatus expected_status;
virtual ~TestBase() {}
TestBase(const char*, TestStatus);
virtual void do_test() = 0;
TestStatus run() {
try {
do_test();
return SUCCESS;
} catch(const AssertFailedError& e) {
printf("!! %s\n", e.what());
return ASSERT_FAIL;
} catch(const std::exception& e) {
printf("!! exception: %s\n", e.what());
return EXCEPTION_UNCAUGHT;
} catch(...) {
printf("!! unknown exception\n");
return EXCEPTION_UNCAUGHT;
}
}
};
typedef std::vector<TestBase*> test_registry_t;
extern test_registry_t test_registry;
TestBase::TestBase(const char* n, TestStatus s): name(n), expected_status(s) {
test_registry.push_back(this);
}
} // namespace test
#define _TEST_STATUS(name, status) \
struct TEST_##name: ::test::TestBase { \
TEST_##name(): TestBase(#name, status) {} \
void do_test(); \
} TEST_##name; \
void TEST_##name::do_test()
#define TEST(name) _TEST_STATUS(name, ::test::SUCCESS)
#define TEST_FAIL(name) _TEST_STATUS(name, ::test::FAILED)
#define TEST_FAIL_ASSERT(name) _TEST_STATUS(name, ::test::ASSERT_FAIL)
#define TEST_UNCAUGHT_EXCEPTION(name) _TEST_STATUS(name, ::test::EXCEPTION_UNCAUGHT)
#define TEST_UNCAUGHT_SIGNAL(name) _TEST_STATUS(name, ::test::SIGNAL_UNCAUGHT)
#define TEST_SEGFAULT(name) _TEST_STATUS(name, ::test::SIGNAL_SEGFAULT)
#define TEST_ABORT(name) _TEST_STATUS(name, ::test::SIGNAL_ABORT)
#define TEST_DIVZERO(name) _TEST_STATUS(name, ::test::SIGNAL_DIVZERO)
#define ASSERT(expr) \
(expr) ? static_cast<void>(0) \
: throw ::test::AssertFailedError( \
__FILE__, __LINE__, #expr)
#define _ASSERT_BINOP(a, b, cmp) \
(not (a cmp b)) ? static_cast<void>(0) \
: throw ::test::AssertFailedError( \
__FILE__, __LINE__, "because " #a " " #cmp " " #b)
#define ASSERT_EQ(a, b) _ASSERT_BINOP(a, b, !=)
#define ASSERT_NE(a, b) _ASSERT_BINOP(a, b, ==)
#define ASSERT_LT(a, b) _ASSERT_BINOP(a, b, >=)
#define ASSERT_LE(a, b) _ASSERT_BINOP(a, b, >)
#define ASSERT_GT(a, b) _ASSERT_BINOP(a, b, <=)
#define ASSERT_GE(a, b) _ASSERT_BINOP(a, b, <)
#define ASSERT_THROW(expr, e_type) \
do { try { expr } \
catch (const e_type&) { break; } \
throw ::test::AssertFailedError( \
__FILE__, __LINE__, "expected exception " #e_type); \
} while(0)
#define ASSERT_ANY_THROW(expr) \
do { try { expr } \
catch (...) { break; } \
throw ::test::AssertFailedError( \
__FILE__, __LINE__, "expected any exception"); \
} while(0)
#define ASSERT_NO_THROW(expr) \
try { expr } \
catch (...) { \
throw ::test::AssertFailedError( \
__FILE__, __LINE__, "no exception expected"); \
}
#endif /* H_GUARD */

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external/backtrace-cpp/test_package/CMakeLists.txt vendored Normal file
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project(backward-package-test)
cmake_minimum_required(VERSION 2.8)
include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
include(${CONAN_CMAKE-UTILS_ROOT}/conan.cmake)
conan_basic_setup()
add_conan_library(backward)
add_executable(example main.cpp)
target_link_libraries(example PRIVATE backward-conan)

15
external/backtrace-cpp/test_package/conanfile.py vendored Normal file
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@ -0,0 +1,15 @@
from conans import ConanFile, CMake
import os
class TestBackward(ConanFile):
settings = 'os', 'compiler', 'build_type', 'arch'
requires = 'cmake-utils/0.0.0@Manu343726/testing', 'backward/0.0.0@Manu343726/testing'
generators = 'cmake'
def build(self):
cmake = CMake(self.settings)
self.run('cmake {} {}'.format(self.conanfile_directory, cmake.command_line))
self.run('cmake --build . {}'.format(cmake.build_config))
def test(self):
self.run(os.path.join('.', 'bin', 'example'))

60
external/backtrace-cpp/test_package/main.cpp vendored Normal file
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@ -0,0 +1,60 @@
#include <backward/backward.hpp>
#include <iostream>
#include <stdexcept>
#include <sstream>
using namespace backward;
class TracedException : public std::runtime_error
{
public:
TracedException() :
std::runtime_error(_get_trace())
{}
private:
std::string _get_trace()
{
std::ostringstream ss;
StackTrace stackTrace;
TraceResolver resolver;
stackTrace.load_here();
resolver.load_stacktrace(stackTrace);
for(std::size_t i = 0; i < stackTrace.size(); ++i)
{
const ResolvedTrace trace = resolver.resolve(stackTrace[i]);
ss << "#" << i << " at " << trace.object_function << "\n";
}
return ss.str();
}
};
void f(int i)
{
if(i >= 42)
{
throw TracedException();
}
else
{
std::cout << "i=" << i << "\n";
f(i + 1);
}
}
int main()
{
try
{
f(0);
} catch (const TracedException& ex)
{
std::cout << ex.what();
}
}

3
src/CMakeLists.txt
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@ -255,9 +255,10 @@ target_link_libraries(anbox-core
anbox-protobuf
xdg)
add_executable(anbox main.cpp)
add_executable(anbox main.cpp ${BACKWARD_ENABLE})
target_link_libraries(anbox
anbox-core)
add_backward(anbox)
install(
TARGETS anbox