Kconfiglib/tests/Kbuild_functions at main · sysprog21/Kconfiglib · GitHub

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# Test Kbuild toolchain test functions and $(python,...) built-in

# --- $(python,...) tests ---

config TEST_PYTHON_SUCCESS
	def_bool $(python,)
	help
	  Empty code string = success = "y"

config TEST_PYTHON_ASSERT_PASS
	def_bool $(python,assert not "")
	help
	  Assertion that passes = "y"

config TEST_PYTHON_ASSERT_FAIL
	def_bool $(python,assert False)
	help
	  Assertion that fails = "n"

config TEST_PYTHON_ENV
	def_bool $(python,assert os.environ.get('CC'))
	help
	  Check env var via os module

config TEST_PYTHON_WHICH
	def_bool $(python,assert shutil.which('python3') or shutil.which('python'))
	help
	  Tool detection via shutil.which

config TEST_PYTHON_RUN
	def_bool $(python,assert run(sys.executable, '-c', ''))
	help
	  Shell-free subprocess via run()

config TEST_PYTHON_RUN_FAIL
	def_bool $(python,assert not run(sys.executable, '-c', 'raise SystemExit(1)'))
	help
	  Verify run() failure detection

config TEST_PYTHON_QUOTE_COMMA
	def_bool $(python,assert "a,b" == "a,b")
	help
	  Commas inside double quotes must not split arguments

config TEST_PYTHON_QUOTE_PAREN
	def_bool $(python,assert "(" + ")" == "()")
	help
	  Parentheses inside quotes must not affect nesting

config TEST_PYTHON_SINGLE_QUOTE
	def_bool $(python,assert 'x,y' == 'x,y')
	help
	  Single-quoted commas must not split arguments

config TEST_PYTHON_ESCAPED_QUOTE
	def_bool $(python,assert "a\"b" == 'a"b')
	help
	  Backslash-escaped quotes must not end quoted region

config TEST_PYTHON_TRIPLE_QUOTE
	def_bool $(python,assert """a,b"c""" == 'a,b"c')
	help
	  Triple-quoted string with comma and embedded quote

config TEST_PYTHON_TRIPLE_SINGLE
	def_bool $(python,assert '''x,y'z''' == "x,y'z")
	help
	  Triple single-quoted string with comma and embedded quote

GREETING = hello

config TEST_PYTHON_MACRO_BEFORE_ESCAPE
	def_bool $(python,assert "$(GREETING)\n" == "hello\n")
	help
	  Macro expansion must happen before backslash-escape processing
	  inside quoted regions so $(GREETING) is expanded, not skipped.

# --- Toolchain function tests (cc-option, ld-option, etc.) ---

config CC_HAS_WALL
	def_bool $(cc-option,-Wall)
	help
	  Test if compiler supports -Wall flag

config CC_HAS_WERROR
	def_bool $(cc-option,-Werror)
	help
	  Test if compiler supports -Werror flag

config CC_HAS_FSTACK_PROTECTOR
	def_bool $(cc-option,-fstack-protector)
	help
	  Test if compiler supports stack protector

config LD_HAS_VERSION
	def_bool $(ld-option,--version)
	help
	  Test if linker supports --version flag

config AS_HAS_NOP
	def_bool $(as-instr,nop)
	help
	  Test if assembler supports NOP instruction

config AS_HAS_MOVQ
	def_bool $(as-instr,movq %rax$(comma) %rbx)
	help
	  Test if assembler supports x86-64 MOVQ instruction

config AS_HAS_CUSTOM_FLAG
	def_bool $(as-option,-march=native)
	help
	  Test if assembler (via CC) supports custom flags

config CC_STACK_USAGE_FLAG
	string
	default "$(cc-option-bit,-fstack-usage)"
	help
	  Returns -fstack-usage if supported, empty otherwise

# --- Failure cases ---

config TEST_INVALID_OPTION
	def_bool $(cc-option,--this-option-does-not-exist-xyz)
	help
	  Test cc-option with invalid flag (should return n)