LUFA/Build/lufa_cppcheck.mk

   1 #
   2 #             LUFA Library
   3 #     Copyright (C) Dean Camera, 2013.
   4 #
   5 #  dean [at] fourwalledcubicle [dot] com
   6 #           www.lufa-lib.org
   7 #
   8
   9 LUFA_BUILD_MODULES         += CPPCHECK
  10 LUFA_BUILD_TARGETS         += cppcheck cppcheck-config
  11 LUFA_BUILD_MANDATORY_VARS  += SRC
  12 LUFA_BUILD_OPTIONAL_VARS   += CPPCHECK_INCLUDES CPPCHECK_EXCLUDES CPPCHECK_MSG_TEMPLATE CPPCHECK_ENABLE \
  13                               CPPCHECK_SUPPRESS CPPCHECK_FAIL_ON_WARNING CPPCHECK_QUIET CPPCHECK_FLAGS
  14 LUFA_BUILD_PROVIDED_VARS   +=
  15 LUFA_BUILD_PROVIDED_MACROS +=
  16
  17 # -----------------------------------------------------------------------------
  18 #                LUFA CPPCheck Buildsystem Makefile Module.
  19 # -----------------------------------------------------------------------------
  20 # DESCRIPTION:
  21 #   Provides a set of targets to scan a project with the free "cppcheck" static
  22 #   analysis tool, to check for code errors at runtime (see http://cppcheck.sourceforge.net).
  23 # -----------------------------------------------------------------------------
  24 # TARGETS:
  25 #
  26 #    cppcheck                  - Scan the project with CPPCheck
  27 #    cppcheck-config           - Use CPPCheck to look for missing include files
  28 #
  29 # MANDATORY PARAMETERS:
  30 #
  31 #    SRC                       - List of source files to statically analyze
  32 #
  33 # OPTIONAL PARAMETERS:
  34 #
  35 #    CPPCHECK_INCLUDES         - Extra include paths to search for missing
  36 #                                header files
  37 #    CPPCHECK_EXCLUDES         - Source file paths to exclude checking (can be
  38 #                                a path fragment if desired)
  39 #    CPPCHECK_MSG_TEMPLATE     - Template for cppcheck error and warning output
  40 #    CPPCHECK_ENABLE           - General cppcheck category checks to enable
  41 #    CPPCHECK_SUPPRESS         - Specific cppcheck warnings to disable by ID
  42 #    CPPCHECK_FAIL_ON_WARNING  - Set to Y to fail the build on cppcheck
  43 #                                warnings, N to continue even if warnings occur
  44 #    CPPCHECK_QUIET            - Enable cppcheck verbose or quiet output mode
  45 #    CPPCHECK_FLAGS            - Additional flags to pass to cppcheck
  46 #
  47 # PROVIDED VARIABLES:
  48 #
  49 #    (None)
  50 #
  51 # PROVIDED MACROS:
  52 #
  53 #    (None)
  54 #
  55 # -----------------------------------------------------------------------------
  56
  57 SHELL = /bin/sh
  58
  59 ERROR_IF_UNSET   ?= $(if $(filter undefined, $(origin $(strip $(1)))), $(error Makefile $(strip $(1)) value not set))
  60 ERROR_IF_EMPTY   ?= $(if $(strip $($(strip $(1)))), , $(error Makefile $(strip $(1)) option cannot be blank))
  61 ERROR_IF_NONBOOL ?= $(if $(filter Y N, $($(strip $(1)))), , $(error Makefile $(strip $(1)) option must be Y or N))
  62
  63 # Default values of optionally user-supplied variables
  64 CPPCHECK_INCLUDES            ?=
  65 CPPCHECK_EXCLUDES            ?=
  66 CPPCHECK_MSG_TEMPLATE        ?= {file}:{line}: {severity} ({id}): {message}
  67 CPPCHECK_ENABLE              ?= all
  68 CPPCHECK_SUPPRESS            ?= variableScope missingInclude
  69 CPPCHECK_FAIL_ON_WARNING     ?= Y
  70 CPPCHECK_QUIET               ?= Y
  71 CPPCHECK_FLAGS               ?=
  72
  73 # Sanity check user supplied values
  74 $(foreach MANDATORY_VAR, $(LUFA_BUILD_MANDATORY_VARS), $(call ERROR_IF_UNSET, $(MANDATORY_VAR)))
  75 $(call ERROR_IF_EMPTY, SRC)
  76 $(call ERROR_IF_EMPTY, CPPCHECK_MSG_TEMPLATE)
  77 $(call ERROR_IF_EMPTY, CPPCHECK_ENABLE)
  78 $(call ERROR_IF_NONBOOL, CPPCHECK_FAIL_ON_WARNING)
  79 $(call ERROR_IF_NONBOOL, CPPCHECK_QUIET)
  80
  81 # Build a default argument list for cppcheck
  82 BASE_CPPCHECK_FLAGS := --template="$(CPPCHECK_MSG_TEMPLATE)" $(CPPCHECK_INCLUDES:%=-I%) $(CPPCHECK_EXCLUDES:%=-i%) --inline-suppr --force --std=c99
  83
  84 # Sanity check parameters and construct additional command line arguments to cppcheck
  85 ifeq ($(CPPCHECK_FAIL_ON_WARNING), Y)
  86    BASE_CPPCHECK_FLAGS += --error-exitcode=1
  87 endif
  88 ifeq ($(CPPCHECK_QUIET), Y)
  89    BASE_CPPCHECK_FLAGS += --quiet
  90 endif
  91
  92 # Output Messages
  93 MSG_CPPCHECK_CMD         := ' [CPPCHECK]:'
  94
  95 # Checks the CPPCheck configuration as used in the user project, to determine if any paths are missing or invalid
  96 cppcheck-config: $(MAKEFILE_LIST)
  97         @echo $(MSG_CPPCHECK_CMD) Checking cppcheck configuration check on source files
  98         cppcheck $(BASE_CPPCHECK_FLAGS) --check-config $(CPPCHECK_FLAGS) $(SRC)
  99
 100 # Runs a static analysis using CPPCheck to determine if there are any issues
 101 cppcheck: $(MAKEFILE_LIST)
 102         @echo $(MSG_CPPCHECK_CMD) Performing static analysis on source files
 103         cppcheck $(BASE_CPPCHECK_FLAGS) --enable=$(CPPCHECK_ENABLE) $(CPPCHECK_SUPPRESS:%=--suppress=%) $(CPPCHECK_FLAGS) $(SRC)
 104
 105 # Phony build targets for this module
 106 .PHONY: cppcheck-config cppcheck