Implement slog2 logging capability

slog2 is enabled by default, but guarded with #ifdef __QNX__. It can be controlled with /etc/vsomeip/logging.json, i.e.: ```json "logging": { "slog2": true } ``` This code allocates 4 pages (16kB) by default, but the caller can provide an environment variable VSOMEIP_SLOG2_NUM_PAGES to control the allocation Minimal CMake changes were made to link against the slog2 library on QNX This commit also modifies the routingmanager example to set the LogApplication property which is used as the log tag for AOSP logcat logging.
COVESA · May 30, 2024 · 944902b · 944902b
1 parent 6c0e9db
commit 944902b
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Showing 10 changed files with 242 additions and 114 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -64,30 +64,65 @@ endif()
 set(CMAKE_CXX_STANDARD 17)
 
 # OS
+add_library(OS_INTERFACE INTERFACE IMPORTED)
+target_link_libraries(OS_INTERFACE INTERFACE Threads::Threads)
+
 if (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
     set(DL_LIBRARY "dl")
-
-if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
-    # This is only relevant for GCC and causes warnings on Clang
-    set(EXPORTSYMBOLS "-Wl,-export-dynamic -Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/exportmap.gcc")
-    set(OS_CXX_FLAGS "${OS_CXX_FLAGS} -pie -Wno-tsan -Wl,-z,relro,-z,now")
-endif()
+    set(CMAKE_POSITION_INDEPENDENT_CODE ON)
 
     set(NO_DEPRECATED "")
     set(OPTIMIZE "")
-  if(NOT DEFINED _FORTIFY_SOURCE)
-      set(_FORTIFY_SOURCE 2)
-  endif()
-    set(OS_CXX_FLAGS "${OS_CXX_FLAGS} -D_GLIBCXX_USE_NANOSLEEP -pthread -O -Wall -Wextra -Wformat -Wformat-security -Wconversion -fexceptions -fstrict-aliasing -fstack-protector-strong -fasynchronous-unwind-tables -fno-omit-frame-pointer -D_FORTIFY_SOURCE=${_FORTIFY_SOURCE} -Wformat -Wformat-security -Wpedantic -Werror -fPIE")
+    if(NOT DEFINED _FORTIFY_SOURCE)
+        set(_FORTIFY_SOURCE 2)
+    endif()
+
+    add_compile_options(
+      -Wall
+      -Wextra
+      -Wformat
+      -Wformat-security
+      -Wconversion
+      -fexceptions
+      -fstrict-aliasing
+      -fstack-protector-strong
+      -fasynchronous-unwind-tables
+      -fno-omit-frame-pointer
+      -Wformat
+      -Wformat-security
+      -Wpedantic
+      # -Werror
+    )
+
+    if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+        # This is only relevant for GCC and causes warnings on Clang
+        add_link_options(
+           -Wno-tsan -Wl,-z,relro,-z,now -Wl,-export-dynamic
+        )
+    endif()
 
     # force all use of std::mutex and std::recursive_mutex to use runtime init
     # instead of static initialization so mutexes can be hooked to enable PI as needed
-    add_definitions(-D_GTHREAD_USE_MUTEX_INIT_FUNC -D_GTHREAD_USE_RECURSIVE_MUTEX_INIT_FUNC)
+    add_definitions(-D_GTHREAD_USE_MUTEX_INIT_FUNC -D_GTHREAD_USE_RECURSIVE_MUTEX_INIT_FUNC -D_FORTIFY_SOURCE=${_FORTIFY_SOURCE})
 endif (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
 
+if(${CMAKE_SYSTEM_NAME} MATCHES "QNX")
+    set(OS "QNX")
+    set(CMAKE_POSITION_INDEPENDENT_CODE ON)
+
+    add_compile_options(
+        -fexceptions
+        -fstrict-aliasing
+        -fstack-protector
+        -fasynchronous-unwind-tables
+        -fno-omit-frame-pointer
+    )
+    add_link_options(-Wl,-export-dynamic)
+    target_link_libraries(OS_INTERFACE INTERFACE slog2 socket)
+endif (${CMAKE_SYSTEM_NAME} MATCHES "QNX")
+
 if (${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
     set(DL_LIBRARY "")
-    set(EXPORTSYMBOLS "")
     set(NO_DEPRECATED "-Wno-deprecated")
     set(OPTIMIZE "")
     set(OS_CXX_FLAGS "-pthread")
@@ -256,7 +291,7 @@ if (MSVC)
 elseif(${CMAKE_SYSTEM_NAME} MATCHES "QNX")
     set(USE_RT "")
 else()
-    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OS_CXX_FLAGS} -g ${OPTIMIZE} ${NO_DEPRECATED} ${EXPORTSYMBOLS}")
+    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OS_CXX_FLAGS} -g ${OPTIMIZE} ${NO_DEPRECATED}")
     set(USE_RT "rt")
 endif()
 
@@ -308,8 +343,11 @@ set_target_properties (${VSOMEIP_NAME} PROPERTIES VERSION ${VSOMEIP_VERSION} SOV
 target_compile_features(${VSOMEIP_NAME} PRIVATE cxx_std_17)
 if (MSVC)
     set_target_properties(${VSOMEIP_NAME} PROPERTIES COMPILE_DEFINITIONS "VSOMEIP_DLL_COMPILATION")
-else ()
-    set_target_properties(${VSOMEIP_NAME} PROPERTIES LINK_FLAGS "-Wl,-wrap,socket -Wl,-wrap,accept -Wl,-wrap,open")
+else()
+    target_link_options(${VSOMEIP_NAME} PRIVATE -Wl,--wrap=socket,--wrap=accept,--wrap=open)
+    if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+        target_link_options(${VSOMEIP_NAME} PRIVATE -Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/exportmap.gcc)
+    endif()
 endif ()
 target_include_directories(${VSOMEIP_NAME} INTERFACE
     $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/interface>
@@ -320,7 +358,7 @@ target_include_directories(${VSOMEIP_NAME} INTERFACE
 # them (which shouldn't be required). ${Boost_LIBRARIES} includes absolute
 # build host paths as of writing, which also makes this important as it breaks
 # the build.
-target_link_libraries(${VSOMEIP_NAME} PRIVATE ${Boost_LIBRARIES} ${USE_RT} ${DL_LIBRARY} ${DLT_LIBRARIES} ${SystemD_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
+target_link_libraries(${VSOMEIP_NAME} PRIVATE ${Boost_LIBRARIES} ${USE_RT} ${DL_LIBRARY} ${DLT_LIBRARIES} ${SystemD_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT} OS_INTERFACE)
 
 if(NOT WIN32)
     target_link_options(${VSOMEIP_NAME} PRIVATE "LINKER:-as-needed")

diff --git a/examples/routingmanagerd/routingmanagerd.cpp b/examples/routingmanagerd/routingmanagerd.cpp
@@ -21,6 +21,8 @@
 #endif
 #endif
 
+extern char * __progname;
+
 static std::shared_ptr<vsomeip::application> its_application;
 
 #ifndef VSOMEIP_ENABLE_SIGNAL_HANDLING
@@ -75,6 +77,7 @@ int routingmanagerd_process(bool _is_quiet) {
 
     std::shared_ptr<vsomeip::runtime> its_runtime
         = vsomeip::runtime::get();
+    its_runtime->set_property("LogApplication", __progname);
 
     if (!its_runtime) {
         return -1;

diff --git a/implementation/configuration/include/configuration.hpp b/implementation/configuration/include/configuration.hpp
@@ -81,6 +81,7 @@ class configuration {
     virtual bool has_console_log() const = 0;
     virtual bool has_file_log() const = 0;
     virtual bool has_dlt_log() const = 0;
+    virtual bool has_slog2_log() const = 0;
     virtual const std::string &get_logfile() const = 0;
     virtual logger::level_e get_loglevel() const = 0;
 

diff --git a/implementation/configuration/include/configuration_impl.hpp b/implementation/configuration/include/configuration_impl.hpp
@@ -97,6 +97,7 @@ class configuration_impl:
     VSOMEIP_EXPORT bool has_console_log() const;
     VSOMEIP_EXPORT bool has_file_log() const;
     VSOMEIP_EXPORT bool has_dlt_log() const;
+    VSOMEIP_EXPORT bool has_slog2_log() const;
     VSOMEIP_EXPORT const std::string & get_logfile() const;
     VSOMEIP_EXPORT vsomeip_v3::logger::level_e get_loglevel() const;
 
@@ -491,6 +492,7 @@ class configuration_impl:
     bool has_console_log_;
     bool has_file_log_;
     bool has_dlt_log_;
+    bool has_slog2_log_;
     std::string logfile_;
     mutable std::mutex mutex_loglevel_;
     vsomeip_v3::logger::level_e loglevel_;
@@ -561,6 +563,7 @@ class configuration_impl:
         ET_LOGGING_CONSOLE,
         ET_LOGGING_FILE,
         ET_LOGGING_DLT,
+        ET_LOGGING_SLOG2,
         ET_LOGGING_LEVEL,
         ET_ROUTING,
         ET_SERVICE_DISCOVERY_ENABLE,
@@ -598,7 +601,7 @@ class configuration_impl:
         ET_PARTITIONS,
         ET_SECURITY_AUDIT_MODE,
         ET_SECURITY_REMOTE_ACCESS,
-        ET_MAX = 45
+        ET_MAX = 46
     };
 
     bool is_configured_[ET_MAX];

diff --git a/implementation/configuration/src/configuration_impl.cpp b/implementation/configuration/src/configuration_impl.cpp
@@ -54,6 +54,11 @@ configuration_impl::configuration_impl(const std::string &_path)
       has_console_log_(true),
       has_file_log_(false),
       has_dlt_log_(false),
+#ifdef __QNX__
+      has_slog2_log_(true),
+#else
+      has_slog2_log_(false),
+#endif
       logfile_("/tmp/vsomeip.log"),
       loglevel_(vsomeip_v3::logger::level_e::LL_INFO),
       is_sd_enabled_(VSOMEIP_SD_DEFAULT_ENABLED),
@@ -162,6 +167,7 @@ configuration_impl::configuration_impl(const configuration_impl &_other)
     has_console_log_ = _other.has_console_log_;
     has_file_log_ = _other.has_file_log_;
     has_dlt_log_ = _other.has_dlt_log_;
+    has_slog2_log_ = _other.has_slog2_log_;
     logfile_ = _other.logfile_;
 
     loglevel_ = _other.loglevel_;
@@ -655,6 +661,15 @@ bool configuration_impl::load_logging(
                     has_dlt_log_ = (its_value == "true");
                     is_configured_[ET_LOGGING_DLT] = true;
                 }
+            } else if (its_key == "slog2") {
+                if (is_configured_[ET_LOGGING_SLOG2]) {
+                    _warnings.insert("Multiple definitions for logging.slog2."
+                            " Ignoring definition from " + _element.name_);
+                } else {
+                    std::string its_value(i->second.data());
+                    has_slog2_log_ = (its_value == "true");
+                    is_configured_[ET_LOGGING_SLOG2] = true;
+                }
             } else if (its_key == "level") {
                 if (is_configured_[ET_LOGGING_LEVEL]) {
                     _warnings.insert("Multiple definitions for logging.level."
@@ -2894,6 +2909,10 @@ bool configuration_impl::has_dlt_log() const {
     return has_dlt_log_;
 }
 
+bool configuration_impl::has_slog2_log() const {
+    return has_slog2_log_;
+}
+
 const std::string & configuration_impl::get_logfile() const {
     return logfile_;
 }

diff --git a/implementation/logger/include/logger_impl.hpp b/implementation/logger/include/logger_impl.hpp
@@ -9,6 +9,13 @@
 #include <memory>
 #include <mutex>
 
+#ifdef __QNX__
+#include <sys/slog2.h>
+#endif
+
+#ifdef ANDROID
+#include <android/log.h>
+#endif
 #ifdef USE_DLT
 #ifndef ANDROID
 #include <dlt/dlt.h>
@@ -34,19 +41,116 @@ class logger_impl {
     std::shared_ptr<configuration> get_configuration() const;
     void set_configuration(const std::shared_ptr<configuration> &_configuration);
 
+#ifdef __QNX__
+    static slog2_buffer_set_config_t   buffer_config;
+    static slog2_buffer_t              buffer_handle[1];
+
+    auto slog2_is_initialized() const -> bool {
+        return slog2_is_initialized_;
+    }
+
+    auto set_slog2_initialized(bool initialized) -> void {
+        slog2_is_initialized_ = initialized;
+    }
+#endif
+
 #ifdef USE_DLT
     void log(level_e _level, const char *_data);
 
 private:
     void enable_dlt(const std::string &_application, const std::string &_context);
 #endif
 
+    static auto constexpr levelAsString(level_e const _level) -> const char *
+    {
+        const char* its_level = nullptr;
+        switch (_level) {
+        case level_e::LL_FATAL:
+            its_level = "fatal";
+            break;
+        case level_e::LL_ERROR:
+            its_level = "error";
+            break;
+        case level_e::LL_WARNING:
+            its_level = "warning";
+            break;
+        case level_e::LL_INFO:
+            its_level = "info";
+            break;
+        case level_e::LL_DEBUG:
+            its_level = "debug";
+            break;
+        case level_e::LL_VERBOSE:
+            its_level = "verbose";
+            break;
+        default:
+            its_level = "none";
+        }
+
+        return its_level;
+    }
+
+#ifdef __QNX__
+    static auto constexpr levelAsSlog2(level_e const _level) -> std::uint8_t
+    {
+        uint8_t severity = 0;
+        switch (_level) {
+        case level_e::LL_FATAL:
+            severity = SLOG2_CRITICAL;
+            break;
+        case level_e::LL_ERROR:
+            severity = SLOG2_ERROR;
+            break;
+        case level_e::LL_WARNING:
+            severity = SLOG2_WARNING;
+            break;
+        case level_e::LL_INFO:
+            severity = SLOG2_INFO;
+            break;
+        case level_e::LL_DEBUG:
+            severity = SLOG2_DEBUG1;
+            break;
+        case level_e::LL_VERBOSE:
+        default:
+            severity = SLOG2_DEBUG2;
+            break;
+        }
+        return severity;
+    }
+#endif
+
+#ifdef ANDROID
+    static constexpr auto levelAsAospLevel(level_e _level) -> android_LogPriority {
+        switch (_level) {
+        case level_e::LL_FATAL:
+            return ANDROID_LOG_ERROR;
+        case level_e::LL_ERROR:
+            return ANDROID_LOG_ERROR;
+        case level_e::LL_WARNING:
+            return ANDROID_LOG_WARN;
+        case level_e::LL_INFO:
+            return ANDROID_LOG_INFO;
+        case level_e::LL_DEBUG:
+            return ANDROID_LOG_DEBUG;
+        case level_e::LL_VERBOSE:
+            return ANDROID_LOG_VERBOSE;
+        default:
+            return ANDROID_LOG_INFO;
+        }
+    }
+#endif // !ANDROID
+
 private:
     static std::mutex mutex__;
 
     std::shared_ptr<configuration> configuration_;
     mutable std::mutex configuration_mutex_;
 
+#ifdef __QNX__
+    // Flag whether slog2 was successfully initialized.
+    bool slog2_is_initialized_ = false;
+#endif
+
 #ifdef USE_DLT
 #ifndef ANDROID
     DLT_DECLARE_CONTEXT(dlt_)

diff --git a/implementation/logger/src/logger_impl.cpp b/implementation/logger/src/logger_impl.cpp
@@ -10,6 +10,14 @@
 #include "../include/logger_impl.hpp"
 #include "../../configuration/include/configuration.hpp"
 
+#ifdef __QNX__
+#include <sys/slog2.h>
+extern char * __progname;
+#elif __linux__
+extern char * __progname;
+#endif
+
+
 namespace vsomeip_v3 {
 namespace logger {
 
@@ -21,6 +29,35 @@ logger_impl::init(const std::shared_ptr<configuration> &_configuration) {
     auto its_logger = logger_impl::get();
     its_logger->set_configuration(_configuration);
 
+#ifdef __QNX__
+    logger_impl::buffer_config.buffer_set_name = __progname;
+    logger_impl::buffer_config.num_buffers = 1;
+    logger_impl::buffer_config.verbosity_level = levelAsSlog2(its_logger->configuration_->get_loglevel());
+
+    // Use a 16kB log buffer by default
+    // Override with a size specified by environment variable
+    long unsigned int num_pages = 4;
+    auto s = getenv("VSOMEIP_SLOG2_NUM_PAGES");
+    if (s != nullptr)
+    {
+        char * endptr = nullptr;
+        num_pages = strtoul(s, &endptr, 0);
+    }
+    logger_impl::buffer_config.buffer_config[0].buffer_name = "vsomeip";
+    logger_impl::buffer_config.buffer_config[0].num_pages = static_cast<int>(num_pages);
+
+    // Register the buffer set.
+    if (-1 == slog2_register(&logger_impl::buffer_config, logger_impl::buffer_handle, 0))
+    {
+        std::fprintf(stderr, "Error registering slogger2 buffer!\n");
+        return;
+    }
+    else
+    {
+        its_logger->set_slog2_initialized(true);
+    }
+#endif
+
 #ifdef USE_DLT
 #   define VSOMEIP_LOG_DEFAULT_CONTEXT_ID              "VSIP"
 #   define VSOMEIP_LOG_DEFAULT_CONTEXT_NAME            "vSomeIP context"