Add simple hello callback.

.gitattributes

@@ -24,6 +24,8 @@ datashadow/datashadow_callbacks.c -text
 datashadow/test_datashadow.cpp -text
 example/Makefile.in -text
 example/callback.c -text
+hello/Makefile.in -text
+hello/hello.c -text
 hookdynamic/Makefile.in -text
 hookdynamic/hook_dynamic_callbacks.c -text
 inferfn/Makefile.in -text

configure.in

@@ -73,6 +73,7 @@ enable_dir rss
 enable_dir hookdynamic
 enable_dir canaries
 enable_dir mixr
+enable_dir hello
 enable_dir cookbook
 enable_dir buffrecv
 enable_dir datashadow

hello/Makefile.in

+
+
+CC=@CC@
+EXTRA_INCLUDES=
+CFLAGS=-fno-omit-frame-pointer @CFLAGS@ -O0 $(EXTRA_INCLUDES)
+LIB=@LIB@
+AR=@AR@
+AS=@AS@
+ASFLAGS=@ASFLAGS@
+
+OBJS=hello.o
+SRCS=hello.c
+
+.SUFFIXES: .o .s .c
+
+.c.o:
+	$(CC) $(CFLAGS) $(INCLUDE) -D__$(ARCH) -c $<
+
+.s.o:
+	$(AS) $(ASFLAGS) $<
+
+
+all: 	$(OBJS)
+	$(AR) -r $(LIB) $(OBJS)
+clean:
+	rm *.o
+	
+

hello/hello.c

+int syscall(int number, ...);
+#include <stdlib.h>
+#include <malloc.h>
+#include <stdint.h>
+#include <strlen.h>
+#include <itox.h>
+
+void print_str(char *s)
+{
+	write(1,s,strlen(s));
+}
+void zipr_hook_start(unsigned int id, unsigned long long rax, unsigned long long rsp)
+{
+	print_str("Hello!\n");
+}