1 # SPDX-License-Identifier: GPL-2.0 2 3 # 'info' prints the argument to stdout. 4 $(info,hello world 0) 5 6 # 'warning-if', if the first argument is y, sends the second argument to stderr, 7 # and the message is prefixed with the current file name and line number. 8 $(warning-if,y,hello world 1) 9 10 # 'error-if' is similar, but it terminates the parsing immediately. 11 # The following is just no-op since the first argument is not y. 12 $(error-if,n,this should not be printed) 13 14 # Shorthand 15 warning = $(warning-if,y,$(1)) 16 17 # 'shell' executes a command, and returns its stdout. 18 $(warning,$(shell,echo hello world 3)) 19 20 # Every newline in the output is replaced with a space, 21 # but any trailing newlines are deleted. 22 $(warning,$(shell,printf 'hello\nworld\n\n4\n\n\n')) 23 24 # 'filename' is expanded to the currently parsed file name, 25 # 'lineno' to the line number. 26 $(warning,filename=$(filename)) 27 $(warning,lineno=$(lineno))
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.