$(call if_changed,link-vmlinux)是调用函数 if_changed, link-vmlinux 是函数 if_changed 的参数,函数 if_changed 定义在文件 scripts/Kbuild.include 中,如下所示: 示例代码 35.5.3.10 scripts/Kbuild.include 代码段 247 if_changed = $(if $(strip $(any-prereq) $(arg-check)), \ 248 @set -e;...
4、文件指示。其包括了三个部分,一个是在一个Makefile中引用还有一个Makefile,就像C语言中的include一样;还有一个是指依据某些情况指定Makefile中的有效部分,就像C语言中的预编译#if一样;还有就是定义一个多行的命令。有关这一部分的内容,我会在兴许的部分中讲述。 5、凝视。Makefile中仅仅有行凝视,和UNIX的...
# (1) if the variable is set in `config.status', edit `config.status' # (which will cause the Makefiles to be regenerated when you run `make'); # (2) otherwise, pass the desired values on the `make' command line. $(RECURSIVE_TARGETS): @fail= failcom='exit 1'; \ for ...
Check if a variable is empty nullstring = foo =$(nullstring)# end of line; there is a space hereall:ifeq($(strip$(foo)),) echo"foo is empty after being stripped"endififeq($(nullstring),) echo"nullstring doesn't even have spaces"endif ...
gitclonehttps://github.com/adafruit/circuitpython.gitcdcircuitpyton/extmod/ulab# update ulab heregit checkout master git pull You might have to check, whether theCIRCUITPY_ULABvariable is set to1for the port that you want to compile for. You find this piece of information in themakefragment...
= x86_64 endif ifeq ($(ARMv7),1) $(info WARNING - ARMv7 variable has been deprecated) $(info WARNING - please use TARGET_ARCH=armv7l instead) TARGET_ARCH ?= armv7l endif ifeq ($(aarch64),1) $(info WARNING - aarch64 variable has been deprecated) $(info WARNING - please use ...
Once your make path is properly set, accept the prompt to allow Makefile Tools to configure IntelliSense. If you don’t see that notification, or you accidentally dismissed it, you can grant Makefile Tools permission to configure IntelliSense by running “C/C++: Change Configuration Provider”...
180 # Old syntax make ... SUBDIRS=$PWD is still supported 181 # Setting the environment variable KBUILD_EXTMOD take precedence 182 ifdef SUBDIRS 183 KBUILD_EXTMOD ?= $(SUBDIRS) 184 endif 185 186 ifeq ("$(origin M)", "command line") ...
Makefile是一种用于自动化构建和管理软件项目的文件。它通常包含了一系列规则和指令,用于描述项目中的文件依赖关系和构建过程。 对特定文件使用`ifeq`测试的Makefile是指在Makefil...
# (1) if the variable is set in `config.status', edit `config.status' # (which will cause the Makefiles to be regenerated when you run `make'); # (2) otherwise, pass the desired values on the `make' command line. $(RECURSIVE_TARGETS): @fail= failcom='exit 1'; \ for f in...