Write a script that generates the assembly code (Intel syntax) of a C code and save it in an output file.
Question
Write a script that generates the assembly code (Intel syntax) of a C code and save it in an output file.
Solution
Sure, here is a step-by-step guide on how to generate the assembly code of a C code and save it in an output file using GCC compiler:
-
Write your C code and save it in a file. Let's say the file name is
program.c
. -
Open your terminal.
-
Navigate to the directory where your C file is located using the
cd
command. -
Now, you can generate the assembly code using the GCC compiler with the
-S
option. The-S
option tells the compiler to stop the build process after compilation and before linking. The command would be:
gcc -S -masm=intel program.c
The -masm=intel
option is used to specify that we want the output in Intel syntax.
-
This will generate an output file with the same name as your C file but with an
.s
extension. In our case, the output file will beprogram.s
. -
You can view the assembly code in the
program.s
file using any text editor or thecat
command in the terminal:
cat program.s
Remember, the assembly code generated is specific to the architecture of the machine where the code is compiled.
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