Fix MISRA violations

source/core_json.c

@@ -688,7 +688,7 @@ static bool skipDigits( const char * buf,
 {
     bool ret = false;
     size_t i = 0U, saveStart = 0U;
-    int32_t value = 0U;
+    int32_t value = 0;
 
     assert( ( buf != NULL ) && ( start != NULL ) && ( max > 0U ) );
 
@@ -1711,11 +1711,10 @@ JSONStatus_t JSON_SearchT( char * buf,
                            size_t * outValueLength,
                            JSONTypes_t * outType )
 {
-    /* MISRA Ref 11.3.1 [Misaligned access] */
+    /* MISRA Ref 11.3.1 [Pointer conversion] */
     /* More details at: https://github.com/FreeRTOS/coreJSON/blob/main/MISRA.md#rule-113 */
     /* coverity[misra_c_2012_rule_11_3_violation] */
-    return JSON_SearchConst( ( const char * ) buf, max, query, queryLength,
-                             ( const char ** ) outValue, outValueLength, outType );
+    return JSON_SearchConst( ( const char * ) buf, max, query, queryLength, ( const char ** ) outValue, outValueLength, outType );
 }
 
 /** @cond DO_NOT_DOCUMENT */

test/CMakeLists.txt

@@ -21,6 +21,12 @@ set( MODULE_ROOT_DIR ${__MODULE_ROOT_DIR} CACHE INTERNAL "coreJSON source root."
 set( UNIT_TEST_DIR ${MODULE_ROOT_DIR}/test/unit-test CACHE INTERNAL "coreJSON unit test directory." )
 set( UNITY_DIR ${UNIT_TEST_DIR}/Unity CACHE INTERNAL "Unity library source directory." )
 
+# If no configuration is defined, turn everything on.
+if( NOT DEFINED COV_ANALYSIS AND NOT DEFINED UNITTEST )
+    set( COV_ANALYSIS TRUE )
+    set( UNITTEST TRUE )
+endif()
+
 # Configure options to always show in CMake GUI.
 option( BUILD_CLONE_SUBMODULES
         "Set this to ON to automatically clone any required Git submodules. When OFF, submodules must be manually cloned."
@@ -33,54 +39,58 @@ set( CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib )
 
 # ================================ Coverity Analysis Configuration =================================
 
-# Include filepaths for source and include.
-include( ${MODULE_ROOT_DIR}/jsonFilePaths.cmake )
-# Target for Coverity analysis that builds the library.
-add_library( coverity_analysis
-             ${JSON_SOURCES} )
-# JSON public include path.
-target_include_directories( coverity_analysis PUBLIC ${JSON_INCLUDE_PUBLIC_DIRS} )
-
-# When building the coverity analysis target we disable debug
-target_compile_options(coverity_analysis PUBLIC -DNDEBUG )
+if( COV_ANALYSIS )
+    # Include filepaths for source and include.
+    include( ${MODULE_ROOT_DIR}/jsonFilePaths.cmake )
+    # Target for Coverity analysis that builds the library.
+    add_library( coverity_analysis
+                ${JSON_SOURCES} )
+    # JSON public include path.
+    target_include_directories( coverity_analysis PUBLIC ${JSON_INCLUDE_PUBLIC_DIRS} )
+
+    # When building the coverity analysis target we disable debug
+    target_compile_options(coverity_analysis PUBLIC -DNDEBUG )
+endif()
 
 #  ====================================  Test Configuration ========================================
 
-# Include Unity build configuration.
-include( unit-test/unity_build.cmake )
-
-# Check if the Unity source directory exists, and if not present, clone the submodule
-# if BUILD_CLONE_SUBMODULES configuration is enabled.
-if( NOT EXISTS ${UNITY_DIR}/src )
-    # Attempt to clone Unity.
-    if( ${BUILD_CLONE_SUBMODULES} )
-        clone_unity()
-    else()
-        message( FATAL_ERROR "The required submodule Unity does not exist. Either clone it manually, or set BUILD_CLONE_SUBMODULES to 1 to automatically clone it during build." )
+if( UNITTEST )
+    # Include Unity build configuration.
+    include( unit-test/unity_build.cmake )
+
+    # Check if the Unity source directory exists, and if not present, clone the submodule
+    # if BUILD_CLONE_SUBMODULES configuration is enabled.
+    if( NOT EXISTS ${UNITY_DIR}/src )
+        # Attempt to clone Unity.
+        if( ${BUILD_CLONE_SUBMODULES} )
+            clone_unity()
+        else()
+            message( FATAL_ERROR "The required submodule Unity does not exist. Either clone it manually, or set BUILD_CLONE_SUBMODULES to 1 to automatically clone it during build." )
+        endif()
     endif()
-endif()
 
-# Add unit test and coverage configuration.
+    # Add unit test and coverage configuration.
 
-# Use CTest utility for managing test runs. This has to be added BEFORE
-# defining test targets with add_test()
-enable_testing()
+    # Use CTest utility for managing test runs. This has to be added BEFORE
+    # defining test targets with add_test()
+    enable_testing()
 
-# Add build targets for Unity and Unit, required for unit testing.
-add_unity_targets()
+    # Add build targets for Unity and Unit, required for unit testing.
+    add_unity_targets()
 
-# Add function to enable Unity based tests and coverage.
-include( ${MODULE_ROOT_DIR}/tools/unity/create_test.cmake )
+    # Add function to enable Unity based tests and coverage.
+    include( ${MODULE_ROOT_DIR}/tools/unity/create_test.cmake )
 
-# Include build configuration for unit tests.
-add_subdirectory( unit-test )
+    # Include build configuration for unit tests.
+    add_subdirectory( unit-test )
 
-#  ==================================== Coverage Analysis configuration ============================
+    #  ==================================== Coverage Analysis configuration ============================
 
-# Add a target for running coverage on tests.
-add_custom_target( coverage
-    COMMAND ${CMAKE_COMMAND} -DUNITY_DIR=${UNITY_DIR}
-    -P ${MODULE_ROOT_DIR}/tools/unity/coverage.cmake
-    DEPENDS unity core_json_utest
-    WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
-)
+    # Add a target for running coverage on tests.
+    add_custom_target( coverage
+        COMMAND ${CMAKE_COMMAND} -DUNITY_DIR=${UNITY_DIR}
+        -P ${MODULE_ROOT_DIR}/tools/unity/coverage.cmake
+        DEPENDS unity core_json_utest
+        WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+    )
+endif()

tools/coverity/misra.config

@@ -1,42 +1,40 @@
-// MISRA C-2012 Rules
-
 {
-    version : "2.0",
-    standard : "c2012",
-    title: "Coverity MISRA Configuration",
-    deviations : [
+    "version" : "2.0",
+    "standard" : "c2012",
+    "title": "Coverity MISRA Configuration",
+    "deviations" : [
         {
-            deviation: "Directive 4.9",
-            category: "Advisory",
-            reason: "Allow inclusion of function like macros."
+            "deviation": "Directive 4.9",
+            "category": "Advisory",
+            "reason": "Allow inclusion of function like macros."
         },
         {
-            deviation: "Rule 2.5",
-            reason: "Allow unused macros. Library headers may define macros intended for the application's use, but not used by a specific file."
+            "deviation": "Rule 2.5",
+            "reason": "Allow unused macros. Library headers may define macros intended for the application's use, but not used by a specific file."
         },
         {
-            deviation: "Rule 3.1",
-            category: "Required",
-            reason: "Allow nested comments. Documentation blocks contain comments for example code."
+            "deviation": "Rule 3.1",
+            "category": "Required",
+            "reason": "Allow nested comments. Documentation blocks contain comments for example code."
         },
         {
-            deviation: "Rule 8.7",
-            reason: "API functions are not used by library. They must be externally visible in order to be used by the application."
+            "deviation": "Rule 8.7",
+            "reason": "API functions are not used by library. They must be externally visible in order to be used by the application."
         },
         {
-            deviation: "Rule 8.13",
-            category: "Advisory",
-            reason: "Allow one function to have a char * argument without const qualifier."
+            "deviation": "Rule 8.13",
+            "category": "Advisory",
+            "reason": "Allow one function to have a char * argument without const qualifier."
         },
         {
-            deviation: "Rule 15.4",
-            category: "Advisory",
-            reason: "Allow more then one break statement to terminate a loop"
+            "deviation": "Rule 15.4",
+            "category": "Advisory",
+            "reason": "Allow more then one break statement to terminate a loop"
         },
         {
-            deviation: "Rule 19.2",
-            category: "Advisory",
-            reason: "Allow a union of a signed and unsigned type of identical sizes."
-        },
+            "deviation": "Rule 19.2",
+            "category": "Advisory",
+            "reason": "Allow a union of a signed and unsigned type of identical sizes."
+        }
     ]
 }