Question

OK, write a "hello, world!" C program. Keep it simple.

On the Linux box, use cc to convert the C source to Assembler source.

Suppose nobody's told you how to do that, but some kind soul mentioned the "man" (Unix Programmer's Manual) database. You'll be using the cc command, so what does the database have to say about cc? Find your own answers, this is real-world.

After you have the Assembler Source, see if you can assemble and link it so it runs.

Answer 1

Please fidn my code:

#include <stdio.h>

int main() {

printf("Hello, World!\n");

return 0;

}

Use the -S option to cc

cc -S hello.c
This will run the preprocessor over hello.c, perform the initial compilation and then stop before the assembler is run.

By default this will output a file hello.s. The output file can be still be set by using the -o option.

Of course this only works if you have the original source. An alternative if you only have the resultant object file is to use objdump, by setting the --disassemble option (or -d for the abbreviated form).

objdump -S --disassemble hello > hello.dump

→ thirdweek → thirdweek cc -S hello.c → thirdweek cc -S -o hello, s hello.c thirdweek thirdweek thirdweek objdump -S --disassemble hello > hello.dump