'

malloc/Makefile

@@ -1,15 +1,17 @@
 CC=gcc
-CFLAGS=
+CFLAGS=-std=c99 -pedantic -Werror -Wall -Wextra -Wvla -fvisibility=hidden -fPIC
-LDFLAGS=
+CPPFLAGS=D_DEFAULT_SOURCE
+LDFLAGS= -shared -Wl --no-undefined
 
 SRCS=
 OBJS=${SRC:.c=.o}
 TARGET=libmalloc.so
 
 library: $(OBJS)
-	$(CC) -shared -o $(TARGET) $^
+	$(CC) -o $(TARGET) $^
 
-debug:
+debug: $(OBJS) $(TST_OBJS)
+	$(CC) -o $(TST_TARGET) $^
 
 check:
 

malloc/src/helpers/helpers.c

@@ -0,0 +1,4 @@
+#include "helpers.h"
+
+size_t get_next_2power(size_t n)
+{}

malloc/src/helpers/helpers.h

@@ -0,0 +1,8 @@
+#ifndef HELPERS_H
+#define HELPERS_H
+
+#include <stddef.h>
+
+size_t get_next_2power(size_t n);
+
+#endif // ! HELPERS_H

malloc/src/malloc.c

@@ -2,7 +2,8 @@
 
 __attribute__((visibility("default"))) void *malloc(size_t size)
 {
-    return NULL;
+    if (size == 0)
+        return NULL;
 }
 
 __attribute__((visibility("default"))) void free(void *ptr)