linux基础学习之 GCC

GCC

gcc [-c|-S|-E] [-std=standard]

[-g] [-pg]

[-Wwarn...] [-pedantic]

[-Idir...] [-Ldir..]

[-Dmacro[=defn]...] [-Umacro]

[-foption...] [mmachine-option...]

[-o output] [@file] infile...

-v Display the programs invoked by the compiler

-### Like -v but options quoted and commands not executed

-E Preprocess only; do not compile, assemble or link

-S Compile only; do not assemble or link

-c Compile and assemble, but do not link

-o <file> Place the output into <file>

--help Display this information

--target-help Display target specific command line options

--help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]

Display specific types of command line options

-c compile or assemble the source files,but do not link.the linking stage is not done.

-s stop after the stage of compilation proper;do not assemble.

-E stop after the preprocessing stage;do not run the compiler proper.

-o file place output in file.

-v print the commands executed to run the stages of compilation.

-w inhibit all warning messages

-Werror make all warnings into errors.

-g produce debugging information in the operating system's natie format.

-pg generate extra code to write profile information suitable for the analysis program

gprof. you must use this option when compiling the source files you want data anout , and

you must also use it when linking.

-ftime-report makes the compiler print some statistics about the time consumed by each

pass when it finishes.

-fmem-report makes the compiler print some statistics about permanent memory allocation

when it finishes.

-I dir add the directory dir to the list of directory to be seachered for header files.

-M instead of outputing the result of preprocessing , output a rule suitable for make

describing the dependencies of the main source file.

-MM like -M but do not mention header files that are found in system header

directories, nor header files that are included,directly or indirectly,from such a header.

-l library seacher the library named library when linking.