2️⃣Binary Analysis

4 Stages of Compilation

4 Stages of Compilation
LogoCompilation Process in C - Scaler TopicsScaler Topics

1. Preprocessing

Preprocessing
#include<stdio.h>

#define FORMAT_STRING "%s"
#define MESSAGE "Hello, world!\n"

int main(int argc, char **agrv)
{ 
        printf(FORMAT_STRING, MESSAGE);
        return 0;
}
$ gcc -E -P <test.c>

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

2. Compilation

$ gcc -S -masm=intel test.c

3. Assembly

$ gcc -c test.c
$ file test.o

Note: Relocatable means you are dealing with an object file and not with an executable file.

Linking

gcc <test.c>
file a.out

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