Makefile是由make工具执行的一种脚本文件,它描述了一组目标(target)以及构建这些目标所需的规则(rule)。在CMake生成的Makefile中,每一个目标通常对应一个或多个源文件,而规则则描述了如何从这些源文件生成目标。 以下是一个简单的Makefile示例: all: hello hello: main.o function.o g++ main.o function.o -...
In this case, it does nothing. three: $(thing_right) # Same as rule three four: $(wildcard *.o) %则主要用于通配符,和sql like有点类似。 objects = foo.o bar.o all.o all: $(objects) # These files compile via implicit rules # Syntax - targets ...: target-pattern: prereq-patterns...
SUBDIRS=$PWD is still supported # Setting the environment variable KBUILD_EXTMOD take precedence ifdef SUBDIRS KBUILD_EXTMOD ?= $(SUBDIRS) endif ifeq ("$(origin M)", "command line") KBUILD_EXTMOD := $(M) endif # If building an external module we do not care about the all: rule # but...
示例代码35.5.7顶层 Makefile 代码段179# Use make M=dir to specify directory of external module to build180# Old syntax make ... SUBDIRS=$PWD is still supported181# Setting the environment variable KBUILD_EXTMOD take precedence182ifdef SUBDIRS183KBUILD_EXTMOD ?= $(SUBDIRS)184endif185186ifeq ("$...
Makefile是由make工具执行的一种脚本文件,它描述了一组目标(target)以及构建这些目标所需的规则(rule)。在CMake生成的Makefile中,每一个目标通常对应一个或多个源文件,而规则则描述了如何从这些源文件生成目标。 以下是一个简单的Makefile示例: all: hello ...
Inthiscase,it does nothing.three:$(thing_right)# Sameasrule threefour:$(wildcard*.o) %在编译c代码时经常用到,我们会在下面再具体说明。 运行时添加的指令 在运行Make时,可以使用下面的指令,来提高我们的调试效率: -n:将要执行的指令显示到terminal上,但不会执行,我们可以检查要执行的指令是否正确。
# we defined them in the Makefile, the values for those variables are # quoted. We just include the generated Makefile fragment .br2-external.mk # a third time, which will set those variables to the un-quoted values.include $(BR2_EXTERNAL_FILE) #...
The make tool will stop running a rule (and will propogate back to prerequisites) if a command returns a nonzero exit status. DELETE_ON_ERRORwill delete the target of a rule if the rule fails in this manner. This will happen for all targets, not just the one it is before like PHONY...
Files main .configurations .devcontainer .github android-patches benchmark deps doc lib src test tools typings .clang-format .cpplint .editorconfig .gitattributes .gitignore .gitpod.yml .mailmap .nycrc .yamllint.yaml BSDmakefile BUILD.gn BUILDING.md ...
For example,if a rule specifies any dependency, then the make tool will include that dependency for compilation purposes. The make command is used in the makefile to build modules or to clean up the files. The general syntax of make is: ...