Makefile phony run user1172023 user1172023. Suppose you put it in the Makefile. The most important purpose is the compilation of programs. PHONY关键字的作用及其使用场景，通过实例对比展示了如何避免因目标名称冲突导致的编译问题。 Makefile中. Do you Makefile no. PHONY directive comes to the Next, let's get acquainted with the simple writing and examples of Makefile. Phony targets are also useful in conjunction with recursive invocations of make (see Recursive Use of make). If a makefile can be remade from other files, you probably want make to get an up-to-date version of the makefile to read in. PHONY seems to not accept wildcards (%), not sure it behaves properly when used with variables. img $(MAKE) check make-obj2-from-obj1 PYTHON = python3 # . PHONY are considered to be phony targets. When one directory contains multiple programs, it is most convenient to describe all of the programs in one makefile . Follow answered Dec 13, 2012 at 3:48. PHONY# Since the original intention of Makefile is to monitor whether local files have been updated and then trigger a series of actions, pure shell command execution needs to use . Instead, make has nothing to compare the timestamp of requirements. Improve this . PHONY run seed docs kitchen-sink clean run: check out what Alex did in his Zero to dbt project’s makefile: include . PHONY targets tell make to treat a target as not being a file, even though there might be a file that has a name identical to this target. PHONY target does not work as expected. a: FORCE $(MAKE) -C sub_dir all FORCE: ; As compared to a . PHONY: all all: pre-script @$(MAKE) -f Makefile --no-print-directory $(MAKECMDGOALS) MAKE='$ To summarize, a rule within a Makefile generally looks like this: # run `make <target>` to run this rule <target>: true . a to rebuild all the time. ONESHELL: Forcing a target just run `make fast` # If you want to run the full suite, run `make all`, but beware that it may take hours. For example: . PHONY. What happens when you run another makefile, either foo. 1. sh: #! /bin/sh # rebuild prog if necessary make prog # run prog with some arguments . PHONY: run. For example: A phony target should not be a prerequisite of a real target file; if it is, its recipe will be run every time make considers that file. /executableName . Basic Syntax of Makefile#. ; books/isles. Dependencies can either be other targets or file names; if a target depends on another target, it guarantees that target will be When you run a Makefile, it will execute the commands in the file in order to build the project. Any text from # to the end of the line is ignored by Make. PHONY ensures that if the clean rule is matched, it will First, you've declared the target build to be . PHONY: all all: rule1 rule2 setup-%: @echo "Setup" 本文介绍了Makefile中. I think a Force Target is what you are looking for here. A recipe is an action that make carries out. When it is time to consider such a target, make will run its recipe unconditionally, regardless of whether a Inside the Makefile of a project you can find a . Phony Targets. A target often depends on several files. Most open-source projects use make to compile a final executable binary, which can then be installed using make install. Note that this applies to all targets in this Makefile. PHONY : clean clean : -rm edit $(objects) This prevents make from getting confused by an actual file called `clean' and causes it to continue in spite of errors from rm. No. lib1. MAKEFLAGS += -j2 and you can invoke make without the -j flag, it will still spawn two processes to build targets in parallel, when they aren't dependent on each other. It has three components: Targets: These are the files you are trying to build or you have a PHONY target if you are just Objectives. Add a comment | 1 . PHONY targets are supposed to represent tasks, not real files, where implicit rule search works only for files. Phony targets Note that the clean target in our sample Makefile doesn't actually create a file named 'clean', and thus doesn't fit the pattern which we've been describing for targets. likely want to run the makefile in the subdirectory regardless whether the subdirectory has been changed because that makefile might have its For example, in a properly written makefile, the variable CFLAGS is included in each command that runs the C compiler, so a file `foo. Select Run Build Task. 3 (Phony Targets) Typically, all and clean are defined as so-called Phony Targets. Instead, invoke check as a Make target explicitly:. To run a Makefile in VS Code, you can use the following steps: 1. PHONY target the same name as the executable. A prerequisite is a file that is used as input to create the target. When you run make all then, Setting . Commented Apr 10, 2022 at 9:22. 6 Phony Targets. ; isles. Share. build_and_run_prog. PHONY: all say_hello generate clean all: say_hello generate say_hello: @echo "Hello Here is a reduced version of my Makefile: . This is when the . Note how it resembles one of the lines from our shell script. This behavior occurs because the image directory (the target of our make) already exists. As long as a phony target is never a prerequisite of a real target, the phony target commands will be executed only when the phony target is a specified goal (see Arguments to Specify the Goals). Probably answer: 2 mistakes: -1- . The makefile probably specifies the usual value for CFLAGS, like this: The Makefile says basically that it has the target file already and doesn't need to execute. This can be handy if you don’t have an The statement. PHONY directive comes into play. make is a widely used and powerful took for coordinating common tasks within a project, and you’ll often file a Makefile sitting in the root of open source repositories, allowing you to quickly see how to perform common tasks @Beta basically i have a phony step to create some data files (basically it concatenate some files and run a template engine to fill some gaps) then i run the tests, then i clean up everything and run that data file step again as the last step to actually package the software the company uses hudson jobs. Following is a list of typical phony and empty target names. Your Makefile contains two special targets - run and clean. Therefore, in your example, it is correct that both target1 and target2 call dostuff because it is a dependency. Special in the sense they don’t represent an actual file that exists. Okay, that's pretty straightforward. In this case, make will not execute any rule, but will check if the dependencies are satisfied (and, if not, will execute their rules). PHONY: . PHONY means that the makefile won't create a file and will run the command every time. PHONY cannot be a pattern rule, because The first thing that jumps out at me is that you're rebuilding your image just to run a different script. In this situation the makefile will often contain a variable which lists a number of sub-directories to be built. Write a simple Makefile. From Phony Targets chapter:. PHONY line), the outputs are the same. Is there any way I can only execute the phony dependency of a file if this file does not exist? If the file has no phony dependency it works and only executes the content of this rule. PHONY: line in each file. Such targets will always be run if they come up in a dependency, but will no longer be run if a Hence the makefile becomes. mk or a makefile that includes it?. You shouldn't need to do that. v p4 edit file2. scss foo. Improve this answer. 1 Arguments to Specify the Makefile. The entire point of a phony target is that it will always be considered out of date and its recipe will be invoked. PHONY directive, we instruct make to treat # Makefile. PHONY（伪目标）伪目标是这样一个目标：它不代表一个真正的文件名，在执行make时可以指定这个目标来执行所在规则定义的命令，有时也可以将一个伪目标称为标签。伪目标通过PHONY来指明。 PHONY定义伪目标的命令一定会被执行，下面尝试分析这种优点的 For example, in a properly written makefile, the variable CFLAGS is included in each command that runs the C compiler, so a file `foo. % has a special interpretation in GNU-make pattern rules (among other places), but a rule for . PHONY (phony) to achieve this. This can be . 2. mostlyclean ¶ True. A phony target is one that is not really the name of a file; rather it is just a name for a recipe to be executed when you make an explicit request. If your Makefile is really huge, you could split it in several files and use include-- and have one . By listing image under the . o $(EXEC) fresh : | clean clearscr all clearscr: clear EDIT Dec 5. /prog "$@" As the name suggests, the phony target . PHONY element followed by a label and then the same label used as a target for the Makefile. Explain when and why to mark targets as . Here is the complete makefile:. 9. PHONY : build build : go build Probably answer: 2 mistakes: -1- . PHONY：后面，那么make xxxx 就表示执行xxxx :指定的命令，而不是要（make）生成xxxx . There are two reasons The. PHONY: lint # Variables PYTHON = venv/bin/python # Tasks lint: @echo " Linting and (PYTHON) -m ruff format. Sometimes makefiles can be remade from other files, such as RCS or SCCS files. When you run the rule1 rule, do you want Make to treat it as a PHONY target? If your answer isn't "that depends on which makefile I'm The makefile can also tell make how to run miscellaneous commands when explicitly asked (for example, . It lists the other files that are the prerequisites of the target, and the recipe to use to create or update the target. In terms of Make, a phony target is simply a target that is always out-of-date, so whenever you ask make <phony_target>, it will run, independent from the state of the file 4. all: clean: rm -f gtest. A . As you cannot build the same target several times the idea is to have as many setup-ruleN targets as there are ruleN targets, and to use the same setup-% pattern rule for all setup-ruleN: $ cat Makefile . Note that each line in Makefile runs in a separate shell, so there is no need to change the directory back. A phony target should not be a prerequisite of a real target file; if it is, its recipe will be run every time make considers that file. PHONY target can have only dependencies, without any rule. To automatically determine the number of jobs to spawn, The following Makefile ultimately runs all three targets. With or without PHONY (if i comment out the . PHONY : clearscr fresh clean all all : compile executable clean : rm -f *. PHONY defines parts of the makefile that are not dependant on any specific file # This is most often used to store functions. Create a script which rebuilds if necessary then runs prog with args. PHONY directive is used to mark a target as phony. 4. To address this issue, the . These are targets that don’t actually create an output file. PHONY line at the top. Normally, you could run make DIR for compiling a C program or similar, but that isn’t helpful outside of compiled languages. Current example show how to run composer from the You can create a . env export PHONY: run clean clean_log duck_dev duck_prod DBT_TARGET = dev Phony. Doing so allows us to build a Docker container using the command make container when at the command line. This provides an easy way for the user to substitute alternatives. PHONY: all edit rtl all: edit rtl csr edit: p4 edit file1. . To run sub-directory's makefile from within the makefile of main, the main's makefile would have looping as shown below (there are other ways in which this can be achieved, but that is out of scope of the current topic) The makefile can also tell make how to run miscellaneous commands when explicitly asked (for example, . This default behavior is not what we expect in this case and we want to override it. Let us go through each line in turn: # denotes a comment. But if I add a phony target as dependency it keeps executing the dependency rule and the rule of generating the existing file. a The only way to do this is to not have check as a prerequisite:. You can set make options that you usually pass to make via its command line invokation in the makefile itself. PHONY: css css: @(sass foo. PHONY: db db: $(MAKE) -C db/ build start – Kurt. If you use the ‘-f’ flag several times and follow each ‘-f’ with an argument, all the specified files are used jointly as makefiles. 2w次，点赞23次，收藏60次。. You can pass an additional command to docker run after the image name, and this will replace the CMD shown in the Dockerfile. The order of rules is not significant, except for determining the default goal: the target for make to consider, if you I (mis)use make's phony targets for conveniently doing all sorts of random things in my project. h makefile execute another target. Open the Makefile in VS Code. As long as a phony target is never a prerequisite of a real target, the phony target recipe will be executed only when the phony target is a specified goal (see Arguments to Specify the Goals). Add this line to your makefile. my-recipe. A better solution though is likely to get rid of the sub-make I have a run target defined in my Makefile, which is really just there so I don't need to type it all the time. For example, with a Makefile, you can invoke a build of your application, deploy it, or run I have a makefile:. PHONY: Make runs the recipe of PHONY targets unconditionally - prerequisites don't matter. As there is no file named aws-deps here, . PHONY: rule1 tells Make that it should not consider "rule1" the name of a file to be built. -2- the target I want to run each time must not be phony itself, but, depend on a phony empty target: link-3- folders seem to not be considered as files (unless PHONY prevents from seeing the directory at all). Now, you'll probably notice the . Do not give the . Once this is done, ‘make clean’ will run the recipe regardless of whether there is a file named clean. DEFAULT_GOAL can run only one target at a time. Phony is useful if your target matches an actual directory but you don’t want to make to run against it. It will only do that if lib1. img: obj1. PHONY: testing testing: pwd mkdir -p testing cd testing pwd . txt is a dependency, a file that is needed to build or update A makefile is a special file used to execute a set of actions. Here is the output of running the above example: $ make echo " int main() { return 0; } Adding . obj2. make does not have general-purpose wildcards. Make the target depend on a nonexistent (phony) target, often called a force target. PHONY的作用 最新推荐文章于 2025-01-21 10:15:00 发布 The typical approach is to see the makefile as a task/subtask tree. Related questions. Thus, there is no way to build a phony target with an implicit rule. It seems clear that $(TESTS) is empty so your 1. dat is a target, a file to be created, or built. PHONY target called run. clean ¶ Delete all files that are normally created by running make. PHONY: run run: @docker run -d -e ANOTHER_VAR=bar--name container-name image-name From the online GNU make manual: A phony target should not be a prerequisite of a real target file; if it is, its recipe will be run every time make goes to update that file. make: Nothing to be done for `run'. 1 Makefile . Click the Run button in the toolbar. 3. PHONY directive, we instruct make to treat image as a phony target. (This is how Makefiles were originally designed. ; Explain constraints on dependencies. VS Code will then execute the commands in the Makefile to build the project. phony targets? 3 Configure Makefile to run command inside a container 4 Split makefile and import targets from In the following post I want to share an interesting way to use Makefile to run commands inside a container. txt to and assumes that the rule for aws-deps must be run. So, better go with the approach to have one line declaring all the PHONY targets. Make is a dedicated tool to parse makefiles. PHONY = help setup test run clean # Defining an array variable What Is A Makefile? A Makefile is basically what the make commands read and execute from. PHONY: run run: proto $(shell python examples/run_simulation. Just create a makefile containing:. A phony target should not be a prerequisite of a real target file; if it is, its recipe will be run every time make goes to update that file. When you run make in the terminal, it will build a program called blah in a series of steps: Make selects the target blah, because the first target is the default target; blah requires blah. However, if there was a file named build, the make build would be bound by the presence of this file and executed A phony target should not be a prerequisite of a real target file; if it is, its commands are run every time make goes to update that file. To this end, after reading in all makefiles make will consider each as a goal target, in the order in which they were processed, and attempt to The question is : is it possible to mass . v file2. 5 How Makefiles Are Remade. PHONY：后面跟着的名称不是指文件名，如果makefile中xxxx 写在. PHONY rule (as suggested by @MadScientist here) this will not in-and-of-itself force all the targets that depend on lib1. It will also execute the script if you invoke the makefile recursively. For example, ‘-f altmake’ says to use the file altmake as the makefile. ターゲットは通常、プログラムによって生成されたファイルの名前です。 . Since it knows that phony targets do not name actual files that could be remade from other files, make skips the implicit rule search for phony targets Whenever I start a new Go project, one of the first things I do is create a Makefile in the root of my project directory. Recognize the key parts of a Makefile, rules, targets, dependencies and actions. See Standard Targets for Users, for a detailed list of all the standard target names which GNU software packages use. That means a target that doesn't take into consideration for execution any file that To address this issue, the . The install target here is called a phony target because makepp treats it as if it were a real file, but it is not actually a file, Then the -F option causes makepp to cd to the solaris directory and execute the makefile there (which will be linked from the repository). For example:. Note: Most likely you have a target that is to make the executable. It looks like this: proto: # generate protobuf python definitions from proto files . For each example, put the contents in a file called Makefile, and in that directory run the command make. As long as a phony target is never a prerequisite of a real target, the phony target commands will be executed only when the phony target is a specified goal (see section Arguments to Specify the Goals). Targets in a Makefile can be named anything (though as you’ll see, certain names can incur certain behavior). ONESHELL . 0 . PHONY though, the recipe will always be run. So, of course the recipe is always run. Even if you remove the . In this article, we’ll explore Makefile 4 Writing Rules. PHONY has no real influence in your case. 目录 即看即用 详细说明 即看即用 作用：告诉make，. # To run with custom build directory, This will execute the script as soon as the makefile is parsed, and before any targets are executed. The makefile probably specifies the usual value for CFLAGS, like this: The cache removal cli command will be run fine most of the time, but let's check what happens if we add a file with the same name as the target at the same level as the Makefile. -2- the target I want to run each time must Clark Grubb's Makefile style guide recommends that: All phony targets should be declared by making them prerequisites of . PHONY: run run: . The way to specify the name of the makefile is with the ‘-f’ or ‘--file’ option (‘--makefile’ also works). a actually changes. There are two ways we can execute our task lint inside our Makefile above: 1) running make and A Makefile is a simple text file consisting of targets, which can invoke different actions depending on what has been configured. 0 makefile is effectively. css) But sometimes these commands will run forever until I explicitly kill them. A rule appears in the makefile and says when and how to remake certain files, called the rule’s targets (most often only one per rule). It is not a big deal to run more than one makefile instance since each command inside the task will be a sub-shell anyways. I'll assume it's straightforward to remove the ARG and update your CMD and ENTRYPOINT accordingly. A phony target should not be a prerequisite of a real target file; if it is, its commands are run every time make goes to update that file. py) But make run yields . This Makefile serves two purposes. they don’t correspond to on-disk artifacts);all depends on target1 and target2, and since it’s the first target, is the default target;; target1 sets NUM to 1 (using target-specific variable assignments);; target2 sets NUM to 2;; target1 and target2 both depend on target;; target must be satisfied by running the given This is a build file, which for Make is called a Makefile - a file executed by Make. v csr: file3. ) 1 A brief introduction to what Makefiles are 2 What hell are . Makefileには、複数のルールを含めることができます。 ルールの中にある [ファイル名] のことをターゲットと呼びます。. e. PHONY is for targets which you want to be built every time the makefile runs, regardless of whether it exists or not or is out of date. The first is to automate common admin tasks (like running tests, The makefile can also tell make how to run miscellaneous commands when explicitly asked (for example, (see Phony Targets). This means that make will execute the image command The prerequisites of the special target . Now run is a phony target, and it will be re-evaluated every time it is called By default, running make without arguments will execute the first rule from the everytime the make build command is invoked it will execute the specified command (in this case go build). all ¶ Make all the top-level targets the makefile knows about. c' would be compiled something like this: cc -c $(CFLAGS) foo. PHONY the bottom half of the Makefile, by taking advantage either of the stable name scheme (test-%), or the position of targets in the file ?. c Thus, whatever value you set for CFLAGS affects each compilation that occurs. Rather, the clean target is used as a shortcut for running a command which clears out the project's build files (the '@' at the beginning of the command tells Make not to print it to the terminal when it is 文章浏览阅读1. Now when running make clear-cache again これがmakefileの基本形になります。このかたまりをルールと呼びます。. add each phony target as a prerequisite of There’s two approaches: Declare the target as . PHONY to a target will prevent make It is a good practice to use variables for all commands used in the Makefile, as well as their options and directories. What's that all about? By convention, the command container would have referred to a file target on disk. As long as a phony target is never a prerequisite of a real target, the phony target recipe will be executed only when the phony target is a Answer to the assumed intention behind your question: You want to run prog with some arguments but have it rebuild before running if necessary. A pattern rule and the GNU make secondary expansion could provide an approximation. o, Your Makefile says the following: all targets are phony (i. What is the real use of PHONY here? The article mentions this. Run Make from the shell. PHO It will also misbehave if you decide to have one of your PHONY targets depend on another PHONY one. v rtl: file1. . hagl bmz nbod laheih iihyvyc rwrxiw fsp alj havwxu nxyd jvsfd gzuwd bbr hyx twgs