feature: kmalloc kfree and krealloc are good

libbozo/Makefile

@@ -1,34 +1,38 @@
-SRCDIR = src
-OBJDIR = obj
-BUILDDIR = build
+SSRC := $(shell find src -name '*.s')
+CSRC := $(shell find src -name '*.c')
+OBJ := $(patsubst src/%.c,obj/%.o,$(CSRC))\
+       $(patsubst src/%.s,obj/%.o,$(SSRC))
 
-SRC := $(shell find $(SRCDIR) -name '*.c')
-OBJ := $(patsubst $(SRCDIR)/%.c,$(OBJDIR)/%.o,$(SRC))
+CC := i386-elf-gcc
+CFLAGS := -std=gnu99 -ffreestanding -O2 -Wall -Wextra -iquoteheaders -c
 
-CC = i386-elf-gcc
-CFLAGS = -std=gnu99 -ffreestanding -O2 -Wall -Wextra -iquoteheaders -c
-
-AR = ar
-ARFLAGS = 
+AS := i386-elf-as
+ASFLAGS := 
+AR := ar
+ARFLAGS := 
 
 NAME = libbozo.a
 
-$(OBJDIR)/%.o: $(SRCDIR)/%.c
+obj/%.o: src/%.s
+	mkdir -p $(dir $@)
+	$(AS) $(ASFLAGS) $< -o $@
+
+obj/%.o: src/%.c
 	mkdir -p  $(dir $@)
 	$(CC) $(CFLAGS) $< -o $@
 
 all : $(NAME)
 
 clean :
-	rm -rf $(OBJDIR)
+	rm -rf obj
 
 fclean : clean
-	rm -rf $(BUILDDIR)
+	rm -rf build
 
 $(NAME) : $(OBJ)
-	mkdir -p $(BUILDDIR)
-	$(AR) -rc $(BUILDDIR)/$(NAME) $(OBJ)
+	mkdir -p build
+	$(AR) -rc build/$(NAME) $(OBJ)
 
 re: fclean all
 
-.PHONY: clean fclean test all re
+.PHONY: clean fclean all re

libbozo/headers/string.h

@@ -7,6 +7,8 @@ int strcmp(const char *s1, const char *s2);
 int strncmp(const char *s1, const char *s2, size_t n);
 size_t strlen(const char *str);
 char *strstr(const char *haystack, const char *needle);
+char *strcpy(char *dest, const char *src);
 void *memcpy(void *dest, const void *src, size_t n);
 int memcmp(const void *s1, const void *s2, size_t n);
 void *memset(void *str, int c, size_t n);
+void *memmove(void *dest, const void *src, size_t n);

libbozo/src/string/memmove.c

@@ -0,0 +1,21 @@
+#include <stddef.h>
+
+void *memmove(void *dest, const void *src, size_t n)
+{
+	size_t i = 0;
+	const char *cast1 = (const char *)src;
+	char *cast2 = (char *)dest;
+
+	if (!cast1 && !cast2 && n > 0)
+		return (0);
+	if (&cast1[0] > &cast2[0]) {
+		while (i < n) {
+			cast2[i] = cast1[i];
+			i++;
+		}
+	} else {
+		while (n--)
+			cast2[n] = cast1[n];
+	}
+	return cast2;
+}

libbozo/src/string/strcpy.c

@@ -0,0 +1,12 @@
+#include <stddef.h>
+
+char *strcpy(char *dest, const char *src)
+{
+	size_t i = 0;
+	if (!src)
+		return NULL;
+	for (; src[i]; i++)
+		dest[i] = src[i];
+	dest[i] = '\0';
+	return dest;
+}