tests for crash printer

crash_printer/tests/run_tests_linux.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+
+my_dir="$(cd "$(dirname "$0")" && pwd)"
+
+pushd "$my_dir" > /dev/null
+
+clang++ -x c++ -rdynamic -std=c++17 -fvisibility=hidden -fexceptions -fno-jump-tables -Og -g3 -fPIE -I../ ../linux.cpp ../common.cpp test_linux_sa_handler.cpp -otest_linux_sa_handler && {
+    ./test_linux_sa_handler ;
+    echo "exit code = $?" ;
+    rm -f ./test_linux_sa_handler ;
+}
+
+clang++ -x c++ -rdynamic -std=c++17 -fvisibility=hidden -fexceptions -fno-jump-tables -Og -g3 -fPIE -I../ ../linux.cpp ../common.cpp test_linux_sa_sigaction.cpp -otest_linux_sa_sigaction && {
+    ./test_linux_sa_sigaction ;
+    echo "exit code = $?" ;
+    rm -f ./test_linux_sa_sigaction ;
+}
+
+clang++ -m32 -x c++ -rdynamic -std=c++17 -fvisibility=hidden -fexceptions -fno-jump-tables -Og -g3 -fPIE -I../ ../linux.cpp ../common.cpp test_linux_sa_handler.cpp -otest_linux_sa_handler && {
+    ./test_linux_sa_handler ;
+    echo "exit code = $?" ;
+    rm -f ./test_linux_sa_handler ;
+}
+
+clang++ -m32 -x c++ -rdynamic -std=c++17 -fvisibility=hidden -fexceptions -fno-jump-tables -Og -g3 -fPIE -I../ ../linux.cpp ../common.cpp test_linux_sa_sigaction.cpp -otest_linux_sa_sigaction && {
+    ./test_linux_sa_sigaction ;
+    echo "exit code = $?" ;
+    rm -f ./test_linux_sa_sigaction ;
+}
+
+rm -f -r ./crash_test
+
+popd > /dev/null

crash_printer/tests/run_tests_win.bat

@@ -0,0 +1,47 @@
+@echo off
+
+pushd "%~dp0"
+
+call :cleanup
+
+setlocal
+call ..\..\build_win_set_env.bat 64
+cl.exe /DEBUG:FULL /Z7 /Od /std:c++17 /DYNAMICBASE /errorReport:none /nologo /utf-8 /EHsc /GF /GL- /GS /MT /I../ ../win.cpp ../common.cpp test_win.cpp kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib Ws2_32.lib Iphlpapi.lib Wldap32.lib Winmm.lib Bcrypt.lib Dbghelp.lib /link /DYNAMICBASE /ERRORREPORT:NONE /NOLOGO /OUT:test_win.exe && (
+    call test_win.exe
+    
+    setlocal enableDelayedExpansion
+    echo exit code = !errorlevel!
+    endlocal
+
+    call :cleanup
+)
+endlocal
+
+setlocal
+call ..\..\build_win_set_env.bat 32
+cl.exe /DEBUG:FULL /Z7 /Od /std:c++17 /DYNAMICBASE /errorReport:none /nologo /utf-8 /EHsc /GF /GL- /GS /MT /I../ ../win.cpp ../common.cpp test_win.cpp kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib Ws2_32.lib Iphlpapi.lib Wldap32.lib Winmm.lib Bcrypt.lib Dbghelp.lib /link /DYNAMICBASE /ERRORREPORT:NONE /NOLOGO /OUT:test_win.exe && (
+    call test_win.exe
+    
+    setlocal enableDelayedExpansion
+    echo exit code = !errorlevel!
+    endlocal
+
+    call :cleanup
+)
+endlocal
+
+rmdir /s /q crash_test
+
+popd
+
+exit /b 0
+
+
+:cleanup
+    del /f /q test_win.exe >nul 2>&1
+    del /f /q test_win.ilk >nul 2>&1
+    del /f /q test_win.obj >nul 2>&1
+    del /f /q test_win.pdb >nul 2>&1
+    del /f /q win.obj >nul 2>&1
+    del /f /q common.obj >nul 2>&1
+exit /b

crash_printer/tests/test_helper.hpp

@@ -0,0 +1,35 @@
+#ifndef _TEST_CRASH_PRINTER_HELPER_H
+#define _TEST_CRASH_PRINTER_HELPER_H
+
+
+#include <filesystem>
+#include <string>
+
+static inline bool remove_file(const std::string &file)
+{
+    if (!std::filesystem::exists(file)) {
+        return true;
+    }
+
+    if (std::filesystem::is_directory(file)) {
+        return false;
+    }
+
+    return std::filesystem::remove(file);
+}
+
+static inline bool remove_file(const std::wstring &file)
+{
+    if (!std::filesystem::exists(file)) {
+        return true;
+    }
+
+    if (std::filesystem::is_directory(file)) {
+        return false;
+    }
+
+    return std::filesystem::remove(file);
+}
+
+
+#endif // _TEST_CRASH_PRINTER_HELPER_H

crash_printer/tests/test_linux_sa_handler.cpp

@@ -0,0 +1,60 @@
+
+#include "crash_printer/linux.hpp"
+#include "./test_helper.hpp"
+
+
+#include <iostream>
+#include <fstream>
+
+#include <ucontext.h>
+#include <signal.h> // SIGBUS + SA_SIGINFO ...
+#include <string.h> // strsignal
+#include <execinfo.h> // backtrace + backtrace_symbols
+
+std::string logs_filepath = "./crash_test/asd.txt";
+
+// sa_sigaction handler for illegal instruction (SIGILL)
+void exception_handler_SIGILL(int signal)
+{
+    std::ifstream file(logs_filepath);
+    if (file.is_open()) {
+        std::string line{};
+        std::getline(file, line);
+        file.close();
+
+        if (line.size()) {
+            std::cout << "Success!" << std::endl;
+            exit(0);
+        }
+    }
+    
+    std::cerr << "Failed!" << std::endl;
+    exit(1);
+}
+
+
+int main()
+{
+    // simululate the existence of previous handler
+    struct sigaction sa_SIGSEGV_prev{};
+    sa_SIGSEGV_prev.sa_handler = exception_handler_SIGILL;
+    sa_SIGSEGV_prev.sa_flags = SA_RESETHAND;
+    sigemptyset(&sa_SIGSEGV_prev.sa_mask); // all signals unblocked
+    sigaction(SIGSEGV, &sa_SIGSEGV_prev, nullptr);
+
+    if (!remove_file(logs_filepath)) {
+        std::cerr << "failed to remove log" << std::endl;
+        return 1;
+    }
+
+    if (!crash_printer::init(logs_filepath)) {
+        std::cerr << "failed to init" << std::endl;
+        return 1;
+    }
+
+    // simulate a crash
+    volatile int * volatile ptr = nullptr;
+    *ptr = 42;
+
+    return 0;
+}

crash_printer/tests/test_linux_sa_sigaction.cpp

@@ -0,0 +1,60 @@
+
+#include "crash_printer/linux.hpp"
+#include "./test_helper.hpp"
+
+
+#include <iostream>
+#include <fstream>
+
+#include <ucontext.h>
+#include <signal.h> // SIGBUS + SA_SIGINFO ...
+#include <string.h> // strsignal
+#include <execinfo.h> // backtrace + backtrace_symbols
+
+std::string logs_filepath = "./crash_test/asd.txt";
+
+// sa_handler handler for illegal instruction (SIGILL)
+void exception_handler_SIGILL(int signal, siginfo_t *info, void *context)
+{
+    std::ifstream file(logs_filepath);
+    if (file.is_open()) {
+        std::string line{};
+        std::getline(file, line);
+        file.close();
+
+        if (line.size()) {
+            std::cout << "Success!" << std::endl;
+            exit(0);
+        }
+    }
+    
+    std::cerr << "Failed!" << std::endl;
+    exit(1);
+}
+
+
+int main()
+{
+    // simululate the existence of previous handler
+    struct sigaction sa_SIGSEGV_prev{};
+    sa_SIGSEGV_prev.sa_sigaction = exception_handler_SIGILL;
+    sa_SIGSEGV_prev.sa_flags = SA_SIGINFO | SA_RESETHAND;
+    sigemptyset(&sa_SIGSEGV_prev.sa_mask); // all signals unblocked
+    sigaction(SIGSEGV, &sa_SIGSEGV_prev, nullptr);
+
+    if (!remove_file(logs_filepath)) {
+        std::cerr << "failed to remove log" << std::endl;
+        return 1;
+    }
+
+    if (!crash_printer::init(logs_filepath)) {
+        std::cerr << "failed to init" << std::endl;
+        return 1;
+    }
+
+    // simulate a crash
+    volatile int * volatile ptr = nullptr;
+    *ptr = 42;
+
+    return 0;
+}

crash_printer/tests/test_win.cpp

@@ -0,0 +1,53 @@
+
+#include "crash_printer/win.hpp"
+#include "./test_helper.hpp"
+
+#include <iostream>
+#include <fstream>
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+std::wstring logs_filepath = L"./crash_test/zxc.txt";
+
+
+static LONG WINAPI exception_handler(LPEXCEPTION_POINTERS ex_pointers)
+{
+    std::ifstream file(logs_filepath);
+    if (file.is_open()) {
+        std::string line{};
+        std::getline(file, line);
+        file.close();
+
+        if (line.size()) {
+            std::cout << "Success!" << std::endl;
+            exit(0);
+        }
+    }
+    
+    std::cerr << "Failed!" << std::endl;
+    exit(1);
+}
+
+
+int main()
+{
+    // simululate the existence of previous handler
+    SetUnhandledExceptionFilter(exception_handler);
+
+    if (!remove_file(logs_filepath)) {
+        std::cerr << "failed to remove log" << std::endl;
+        return 1;
+    }
+
+    if (!crash_printer::init(logs_filepath)) {
+        std::cerr << "failed to init" << std::endl;
+        return 1;
+    }
+
+    // simulate a crash
+    volatile int * volatile ptr = nullptr;
+    *ptr = 42;
+
+    return 0;
+}