depp · June 25, 2021 14:24
diff --git a/README.md b/README.md
diff --git a/inject.c b/inject.c
 #include <stdio.h>

 __attribute__((constructor)) static void injection_init(void) {
    fputs("injection init\n", stdout);
 }
diff --git a/main.c b/main.c
 #include <stdio.h>

 int main(int argc, char **argv) {
 	fputs("main\n", stdout);
 }
diff --git a/Makefile b/Makefile
 all: inject.dylib main

 inject.dylib: inject.c
 	cc -dynamiclib $^ -o $@

 main: main.c
 	cc $^ -o $@
	#include <stdio.h>

	__attribute__((constructor)) static void injection_init(void) {
	fputs("injection init\n", stdout);
	}