Set up backward-cpp on Linux

.gitmodules

@@ -31,3 +31,6 @@
 [submodule "third_party/abseil-cpp"]
 	path = third_party/abseil-cpp
 	url = https://github.com/abseil/abseil-cpp.git
+[submodule "third_party/backward-cpp"]
+	path = third_party/backward-cpp
+	url = https://github.com/bombela/backward-cpp.git

CMakeLists.txt

@@ -106,7 +106,8 @@ set(DEVICE_LIBRARIES_VERSION_FILENAME "DEVICE_LIBRARIES_VERSION.csv")
 if(ANDROID)
     message(CHECK_START "Make version file for Dive device libraries")
     file(
-        WRITE ${CMAKE_INSTALL_PREFIX}/${DEVICE_LIBRARIES_VERSION_FILENAME}
+        WRITE
+        ${CMAKE_INSTALL_PREFIX}/${DEVICE_LIBRARIES_VERSION_FILENAME}
         "sha,"
         ${DIVE_VERSION_SHA1}
         "\nversion,"

layer/CMakeLists.txt

@@ -55,7 +55,8 @@ set(TARGET_LINK_LIBS PRIVATE service)
 
 add_definitions(-DVK_USE_PLATFORM_ANDROID_KHR)
 list(
-    APPEND TARGET_LINK_LIBS
+    APPEND
+    TARGET_LINK_LIBS
     PRIVATE
     -lm
     PRIVATE

ui/CMakeLists.txt

@@ -48,6 +48,18 @@ include_directories(${CMAKE_SOURCE_DIR})
 include_directories(${CMAKE_BINARY_DIR})
 include_directories(${LibArchive_INCLUDE_DIRS})
 
+# Integrate backward-cpp for Linux only
+if(UNIX AND NOT APPLE)
+    if(EXISTS "${CMAKE_SOURCE_DIR}/third_party/backward-cpp/CMakeLists.txt")
+        add_subdirectory(
+            "${CMAKE_SOURCE_DIR}/third_party/backward-cpp"
+            "${CMAKE_CURRENT_BINARY_DIR}/backward-cpp_build"
+        )
+    else()
+        message(WARNING "backward-cpp not found...")
+    endif()
+endif()
+
 # Tell CMake to create the Dive executable
 add_executable(
     ${PROJECT_NAME}
@@ -77,6 +89,10 @@ target_link_libraries(
     version_info
 )
 
+if(TARGET backward)
+    target_link_libraries(${PROJECT_NAME} backward)
+endif()
+
 # std::filesystem needs to link with libstdc++fs for g++ before 9.0
 if(CMAKE_COMPILER_IS_GNUCC AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 9.0)
     target_link_libraries(${PROJECT_NAME} stdc++fs)

ui/collect_licenses.cmake

@@ -30,7 +30,8 @@ function(
 
     foreach(file ${files})
         file(
-            APPEND "${OUTPUT_FILE}"
+            APPEND
+            "${OUTPUT_FILE}"
             "================================================================================\n"
         )
         file(APPEND "${OUTPUT_FILE}" "${file}:\n\n")

ui/main.cpp

@@ -31,6 +31,13 @@
 #    include <dlfcn.h>
 #endif
 
+#include "backward.hpp"
+
+namespace
+{
+backward::SignalHandling sh;
+}  // namespace
+
 constexpr int kSplashScreenDuration = 2000;  // 2s
 constexpr int kStartDelay = 500;             // 0.5s
 

ui/trace_window.cpp

@@ -746,6 +746,11 @@ void TraceWorker::run()
     const std::string  host = "127.0.0.1";
     int                port = device->Port();
     auto               status = client.Connect(host, port);
+
+    // intentional error
+    int *x = nullptr;
+    *x = 1;
+
     if (!status.ok())
     {
         std::string err_msg(status.message());