makefile c

program into modules, which were decomposed into different files. When one of these parts changes, because the other file's target source file already exists, so the compiler does not need to compile all the code to generate a new executable file, and only need to compile the changed source files, and then connect all the target files on it, which is very important in the large project development, This can reduce the compilation time from several hours to a few minutes. That's what make can do

Makefile Learning (3) [version 2] And makefile learning Version 2Common embedded functions of make 1. function call $ (Function arguments) # $ the referenced result is the result generated by the function. 2. Common functions in Makefile 1) $ (wildcard PATTERN) # match the files in the current directory For example, src = $ (wildcard *. c) # Matches all. c files

Linux driver development kernel module compilation-Makefile getting started tutorial, driver development makefile I. Module Compilation In the previous kernel compilation, we mentioned that driver compilation is dividedStatic CompilationAndDynamic CompilationStatic compilation is to directly compile the driver into the kernel, and dynamic compilation is to compile the driver into a module. Dynamic compilat

Tags: blog Io ar SP file on 2014 Take a set of simple. c files as an example. The learning process from compiling commands to makefile. The GCC parameters are not described too much. The following files and content: Add. c int add(int a int b){ return a+b;} Sub. c int sub(int a ,int b){ return a-b;}Cal. h #ifndef __CAL_H_#define __CAL_H_int add(int,int);int sub(int,int);#endif Main. c #include There are three source files

By default, make will look for the makefile file to read and execute in the file name order in the working directory (the directory where the make is executed), looking for the file name in the following order: "Gnumakefile", "Makefile", "makefile".Usually you should use "makefile" or "

Lesson 3 make Makefile (I) and make makefilePreface: The previous course explains the gcc compilation process to its practice. You can see that some of these steps can simplify compilation, however, due to the large number of parameters and the large number of files in the project, errors may occur, or even a lot of time is wasted on compilation. Therefore, this tool is also available in the linux system: makefile.Principle: In fact, the essence of

Objective:You don't need to edit a slightly obscure makefile file when you build a C + + program using VS on Windows, and for starters, they don't even realize it's there. VS is to automatically generate makefile files and build the project. There is no denying that Visual Studio is an all-purpose IDE, it helps developers do a lot of work, but also reduce the threshold of the C + +, the significance is very

Use Makefile to optimize the entire process of Makefile Take a set of simple. c files as an example. The learning process from compiling commands to Makefile. The gcc parameters are not described too much. The following files and content: Add. c int add(int a int b){ return a+b;} Sub. c int sub(int a ,int b){ return a-b;} Cal. h #ifndef __CAL_H_#defi

Assign values to variables in Makefile and assign values to makefile Variable assignment in Makefile BEIJING-Haidian District First, the Makefile syntax is as follows: Targets: prerequisites Command ......... Or: Targets: prerequisites; command Command ......... Targets is a file name separated by spaces. Wildcards c

Linux study note 6. makefile file manager and makefile file creation-Linux general technology-Linux programming and kernel information. For details, see the following. Splitting source program files is conducive to developing large programs and improving the efficiency of programming. But the more files are separated, the more compilation and Maintenance Difficult. To prevent changes to one or more files i

Makefile condition judgment ---------- [Badboy], makefile condition badboy Conditional judgment allows make to select different execution branches based on different running conditions. A conditional expression can be used to compare the value of a variable or a constant. I. Example In the following example, determine whether the $ (CC) variable is "gcc". If yes, use the GNU function to compile the target.

Finally, C ++ code porting was introduced to bootloader. The only achievement was familiarity with makefile. Some factory companies could not afford to be hurt. Every time they had to do something to meet the needs of factory-side testing, in order to be able to meet the requirements of the factory for testing in Boot, after discussion with the chip company, only C ++ can be obtained to boot, it is really a second decision that boot will eventually ac

When the make command executes, a makefile file is required to tell the make command how to compile and link the program.First, we use an example to illustrate Makefile's writing rules. In order to give everyone a perceptual knowledge. This example comes from the GNU Make manual, in which we have 8 C files, and 3 header files, and we're going to write a makefile to show how the Make command compiles and lin

Makefile topic: Automatic Generation of dependency (I), makefile topic1. Problem Introduction 1) Does the target file (. o) only depend on the source file (. c )?2) How does the compiler compile source files and header files?2. defects caused by compilation behaviors Preprocessor transfers the code in the header file Insert directlyTo the source file compiler, you can only use The source file after preproce

. | -- Makefile | -- Test1 | -- Makefile | -- Bin | '-- Test | -- Hello. o | -- Include | '-- Hello. h | '-- SRC | '-- Hello. c '-- Test2 | -- Makefile | -- Bin | '-- Test | -- Hello. o | -- Include | '-- Hello. h | -- OBJ '-- SRC '-- Hello. c The makefile in the root directory calls the