chore: add lint and format targets

sys-utils/libcmt/.clang-format

@@ -0,0 +1,19 @@
+Language: Cpp
+BasedOnStyle: LLVM
+AccessModifierOffset: -4
+AlignAfterOpenBracket: DontAlign
+AlignOperands: DontAlign
+AllowAllArgumentsOnNextLine: false
+AllowAllConstructorInitializersOnNextLine: false
+AllowAllParametersOfDeclarationOnNextLine: false
+AllowShortFunctionsOnASingleLine: Empty
+AlwaysBreakTemplateDeclarations: Yes
+BreakInheritanceList: AfterColon
+BreakBeforeTernaryOperators: false
+BreakConstructorInitializers: AfterColon
+ColumnLimit: 120
+ConstructorInitializerAllOnOneLineOrOnePerLine: true
+IndentCaseLabels: true
+IndentWidth: 4
+SpaceAfterCStyleCast: true
+Standard: c++17

sys-utils/libcmt/.clang-tidy

@@ -0,0 +1,52 @@
+Checks: >-
+  boost*,
+  bugprone*,
+  -bugprone-branch-clone,
+  -bugprone-easily-swappable-parameters,
+  cert*,
+  clang-analyzer*,
+  cppcoreguidelines*,
+  -cppcoreguidelines-avoid-magic-numbers,
+  -cppcoreguidelines-non-private-member-variables-in-classes,
+  -cppcoreguidelines-owning-memory,
+  -cppcoreguidelines-pro-bounds*,
+  -cppcoreguidelines-pro-type-vararg,
+  -cppcoreguidelines-avoid-c-arrays,
+  google-readability-*,
+  misc*,
+  -misc-include-cleaner,
+  -misc-no-recursion,
+  -misc-non-private-member-variables-in-classes,
+  -misc-use-anonymous-namespace,
+  modernize*,
+  -modernize-redundant-void-arg,
+  -modernize-use-default-member-init,
+  -modernize-use-nodiscard,
+  -modernize-use-trailing-return-type,
+  -modernize-avoid-c-arrays,
+  -modernize-use-auto,
+  performance*,
+  portability*,
+  readability*,
+  -readability-else-after-return,
+  -readability-function-cognitive-complexity,
+  -readability-implicit-bool-conversion,
+  -readability-identifier-length,
+  -readability-magic-numbers,
+  -readability-named-parameter,
+  -readability-redundant-member-init
+WarningsAsErrors: >-
+  boost*,
+  bugprone*,
+  cert*,
+  clang-analyzer*,
+  cppcoreguidelines*,
+  google*,
+  misc*,
+  modernize*,
+  performance*,
+  portability*,
+  readability*
+CheckOptions:
+  - key: performance-move-const-arg.CheckTriviallyCopyableMove
+    value: 'false'

sys-utils/libcmt/.gitignore

@@ -1 +1,2 @@
 compile_flags.txt
+*/*.clang-tidy*

sys-utils/libcmt/Makefile

@@ -24,9 +24,8 @@ TARGET_AR := $(TOOLCHAIN_PREFIX)ar
 TARGET_CFLAGS := -Wvla -O2 -g -Wall -pedantic -Wextra -Isrc
 CFLAGS := -Wvla -O2 -g -Wall -pedantic -Wextra -Isrc
 
-ALL := libcmt mock tools test doc
-all: $(ALL)
-
+all: libcmt host
+host: mock tools test
 #-------------------------------------------------------------------------------
 examples_SRC := \
 	doc/examples/abi_encode_000.c \
@@ -165,11 +164,47 @@ $(tools_OBJDIR)/funsel: tools/funsel.c $(mock_LIB)
 
 tools: $(tools_BINS)
 
+#-------------------------------------------------------------------------------
+LINTER_IGNORE_SOURCES=src/io.c
+LINTER_IGNORE_HEADERS=
+LINTER_SOURCES=$(filter-out $(LINTER_IGNORE_SOURCES),$(strip $(wildcard src/*.c) $(wildcard tests/*.c) $(wildcard tools/*.c)))
+LINTER_HEADERS=$(filter-out $(LINTER_IGNORE_HEADERS),$(strip $(wildcard src/*.h)))
+
+CLANG_TIDY=clang-tidy
+CLANG_TIDY_TARGETS=$(patsubst %.c,%.clang-tidy,$(LINTER_SOURCES))
+
+CLANG_FORMAT=clang-format
+CLANG_FORMAT_FILES:=$(wildcard src/*.c) $(wildcard src/*.h) $(wildcard tests/*.c) $(wildcard tools/*.c)
+CLANG_FORMAT_IGNORE_FILES:=
+CLANG_FORMAT_FILES:=$(strip $(CLANG_FORMAT_FILES))
+CLANG_FORMAT_FILES:=$(filter-out $(CLANG_FORMAT_IGNORE_FILES),$(strip $(CLANG_FORMAT_FILES)))
+
+EMPTY:=
+SPACE:=$(EMPTY) $(EMPTY)
+CLANG_TIDY_HEADER_FILTER=$(CURDIR)/($(subst $(SPACE),|,$(LINTER_HEADERS)))
+
+%.clang-tidy: %.c
+	@$(CLANG_TIDY) --header-filter='$(CLANG_TIDY_HEADER_FILTER)' $< -- $(CFLAGS) 2>/dev/null
+	@$(CC) $(CFLAGS) $< -MM -MT $@ -MF $@.d > /dev/null 2>&1
+	@touch $@
+
+clangd-config:
+	@echo "$(CFLAGS)" | sed -e $$'s/ \{1,\}/\\\n/g' | grep -v "MMD" > compile_flags.txt
+
+format:
+	@$(CLANG_FORMAT) -i $(CLANG_FORMAT_FILES)
+
+check-format:
+	@$(CLANG_FORMAT) -Werror --dry-run $(CLANG_FORMAT_FILES)
+
+lint: $(CLANG_TIDY_TARGETS)
+
 #-------------------------------------------------------------------------------
 
 help:
 	@echo "Targets: (default: '*')"
-	@echo "* all          - $(ALL)"
+	@echo "* all          - Build libcmt and host targets"
+	@echo "  host         - Build mock, tools and test targets"
 	@echo "  libcmt       - Build the library, tools and examples; to run on the cartesi-machine."
 	@echo "                 (requires the cartesi Linux headers to build)"
 	@echo "  mock         - Build a mocked version of the library, tools and examples; to run on the host system."
@@ -190,10 +225,14 @@ doc: doc/theme examples
 	doxygen doc/Doxyfile
 
 clean:
-	rm -rf build
-
-clangd-config:
-	@echo "$(CFLAGS)" | sed -e $$'s/ \{1,\}/\\\n/g' | grep -v "MMD" > compile_flags.txt
+	@rm -rf build
+	@rm -rf src/*.clang-tidy src/*.d
+	@rm -rf tests/*.clang-tidy tests/*.d
+	@rm -rf tools/*.clang-tidy tools/*.d
+
+distclean: clean
+	@rm -rf doc/html doc/theme
+	@rm -rf compile_flags.txt
 
 OBJ := $(mock_OBJ) $(libcmt_OBJ) $(examples_OBJ) $(tools_OBJ)