GCC
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Gcc is the GNU C/C++ compiler, a popular open source compiler used on Linux and other platforms. It can compile C, C++, Ada and other languages. Gcc performs preprocessing, compilation, assembly and linking. Common gcc options include -c to compile only, -o to specify the output filename, -g for debugging symbols, and -Wall to show warnings. The -c option compiles to an object file without linking, while -o overrides the default output filename.
GCC
- 1. What is gcc? Gcc- stands for GNU C/C++ Compiler - a popular console-based compiler for *NIX platforms and others; can cross- compile code for various architectures - gcc to compile C programs; g++ for C++ - can actually work also with ADA, Java, and a couple other languages - gcc performs all of these: 1. preprocessing, 2. compilation, 3. assembly, and 4. linking As always: there is man gcc
- 2. Options There are alot of them, but there are some the most often used ones: To compile: -c Specify output filename: -o <filename> Include debugging symbols: -g Show all (most) warnings: -Wall
- 3. Options There are zillions of them, but there are some the most often used ones: To compile: -c Specify output filename: -o <filename> Include debugging symbols: -g Show all (most) warnings: -Wall Be stubborn about standards: -ansi and -pedantic Optimizations: -O, -O*
- 4. Options: -c - gcc performs compilation and assembly of the source file without linking. - The output are usually object code files, .o; they can later be linked and form the desired executables. - Generates one object file per source file keeping the same prefix (before .) of the filename.
- 5. Options: -o <filename> - Places resulting file into the filename specified instead of the default one. - Can be used with any generated files (object, executables, assembly, etc.) - If you have the file called source.c; the defaults are: source.o if -c was specified a.out if executable - These can be overridden with the -o option.