diff --git a/project/common.mk b/project/common.mk
index d5de244..e414247 100644
--- a/project/common.mk
+++ b/project/common.mk
@@ -15,27 +15,23 @@ libc_src_merged     = $(subst $(SOURCE_DIR)/,./, \
 		      $(subst $(PROJECT_DIR)/,./, \
 		        $(libc_src_sorted)))
 
-libc_arch_dirs      = $(wildcard $(addsuffix $(ARCH)/, $(libc_src_dirs)))
+libc_arch_dirs      = $(sort $(wildcard $(addsuffix $(ARCH)/, $(libc_src_dirs))))
 
-libc_arch_files_c   = $(wildcard $(addsuffix *.c,$(libc_arch_dirs)))
-libc_arch_files_s   = $(wildcard $(addsuffix *.s,$(libc_arch_dirs)))
-libc_arch_files_S   = $(wildcard $(addsuffix *.S,$(libc_arch_dirs)))
+libc_arch_files_c   = $(subst $(PORT_DIR)/,./,$(wildcard $(addsuffix *.c,$(libc_arch_dirs))))
+libc_arch_files_s   = $(subst $(PORT_DIR)/,./,$(wildcard $(addsuffix *.s,$(libc_arch_dirs))))
+libc_arch_files_S   = $(subst $(PORT_DIR)/,./,$(wildcard $(addsuffix *.S,$(libc_arch_dirs))))
 
-libc_arch_files     = $(subst $(SOURCE_DIR)/,./, \
-		      $(subst $(PROJECT_DIR)/,./, \
-		        $(libc_arch_files_c)       \
-		        $(libc_arch_files_s)        \
-		        $(libc_arch_files_S)))
+libc_arch_files     = $(libc_arch_files_c) \
+		      $(libc_arch_files_s)  \
+		      $(libc_arch_files_S)
 
 libc_arch_substs_c  = $(subst /$(ARCH)/,/,$(libc_arch_files_c))
 libc_arch_substs_s  = $(subst /$(ARCH)/,/,$(libc_arch_files_s))
 libc_arch_substs_S  = $(subst /$(ARCH)/,/,$(libc_arch_files_S))
 
-libc_arch_substs    = $(subst $(SOURCE_DIR)/,./,   \
-		      $(subst $(PROJECT_DIR)/,./,   \
-		        $(libc_arch_substs_c)        \
-		        $(libc_arch_substs_s:%.s=%.c) \
-		        $(libc_arch_substs_S:%.S=%.c)))
+libc_arch_substs    = $(libc_arch_substs_c)        \
+		      $(libc_arch_substs_s:%.s=%.c) \
+		      $(libc_arch_substs_S:%.S=%.c)
 
 libc_pure_files     = $(filter-out $(libc_arch_substs), $(libc_src_merged))
 libc_all_files      = $(libc_pure_files) $(libc_arch_files)
@@ -68,3 +64,102 @@ libc_tree_dirs      = $(subst $(SOURCE_DIR)/,./,             \
 
 libc_tree_dirs     += ./crt/  ./crt/$(ARCH)/
 libc_tree_dirs     += ./ldso/ ./ldso/$(ARCH)/
+
+
+# core objects
+STATIC_OBJS        += $(libc_core_files_c:%.c=%.o)
+STATIC_OBJS        += $(libc_core_files_s:%.s=%.o)
+STATIC_OBJS        += $(libc_core_files_S:%.S=%.o)
+
+SHARED_OBJS        += $(libc_core_files_c:%.c=%.lo)
+SHARED_OBJS        += $(libc_core_files_s:%.s=%.lo)
+SHARED_OBJS        += $(libc_core_files_S:%.S=%.lo)
+
+$(STATIC_OBJS):       headers.tag host.tag tree.tag
+$(SHARED_OBJS):       headers.tag host.tag tree.tag
+
+$(SHARED_OBJS):       CFLAGS_SHARED += -DSHARED=
+
+src/%.o:$(PORT_DIR)/src/%.c
+	$(CC) -c -o $@ $< $(CFLAGS_STATIC)
+
+src/%.o:$(PORT_DIR)/src/%.s
+	$(AS) -o $@ $<
+
+src/%.o:$(PORT_DIR)/src/%.S
+	$(CC) -c -o $@ $< $(CFLAGS_STATIC)
+
+src/%.lo:$(PORT_DIR)/src/%.c
+	$(CC) -c -o $@ $< $(CFLAGS_SHARED)
+
+src/%.lo:$(PORT_DIR)/src/%.s
+	$(AS) -o $@ $<
+
+src/%.lo:$(PORT_DIR)/src/%.S
+	$(CC) -c -o $@ $< $(CFLAGS_SHARED)
+
+
+# crt objects
+CRT_OBJS           += $(libc_crt_files_c:%.c=%.o)
+CRT_OBJS           += $(libc_crt_files_s:%.s=%.o)
+CRT_OBJS           += $(libc_crt_files_S:%.S=%.o)
+
+$(CRT_OBJS):          headers.tag host.tag tree.tag
+$(CRT_OBJS):          CFLAGS_CONFIG += -DCRT
+
+./crt/Scrt1.o:        CFLAGS_CONFIG += -fPIC
+./crt/rcrt1.o:        CFLAGS_CONFIG += -fPIC
+
+crt/%.o:$(PORT_DIR)/crt/%.c
+	$(CC) -c -o $@ $< $(CFLAGS_STATIC)
+
+crt/%.o:$(PORT_DIR)/crt/%.s
+	$(AS) -o $@ $<
+
+crt/%.o:$(PORT_DIR)/crt/%.S
+	$(CC) -c -o $@ $< $(CFLAGS_STATIC)
+
+crt/%.o:$(SOURCE_DIR)/crt/%.c
+	$(CC) -c -o $@ $< $(CFLAGS_STATIC)
+
+crt-objs:  $(CRT_OBJS)
+shared-lib:$(CRT_OBJS)
+static-lib:$(CRT_OBJS)
+
+clean-crt-objs:
+	rm -f $(CRT_OBJS)
+
+clean:	clean-crt-objs
+
+.PHONY:	crt-objs clean-crt-objs
+
+
+# ldso objects
+LDSO_OBJS          += $(libc_ldso_files_c:%.c=%.lo)
+LDSO_OBJS          += $(libc_ldso_files_s:%.s=%.lo)
+LDSO_OBJS          += $(libc_ldso_files_S:%.S=%.lo)
+
+$(LDSO_OBJS):         headers.tag host.tag tree.tag
+
+$(LDSO_OBJS):         CFLAGS_SHARED += -DSHARED=
+
+ldso/%.lo:$(PORT_DIR)/ldso/%.c
+	$(CC) -c -o $@ $< $(CFLAGS_SHARED)
+
+ldso/%.lo:$(PORT_DIR)/ldso/%.s
+	$(AS) -o $@ $<
+
+ldso/%.lo:$(PORT_DIR)/ldso/%.S
+	$(CC) -c -o $@ $< $(CFLAGS_SHARED)
+
+ldso/%.lo:$(SOURCE_DIR)/ldso/%.c
+	$(CC) -c -o $@ $< $(CFLAGS_SHARED)
+
+ldso-objs:$(LDSO_OBJS)
+
+clean-ldso-objs:
+	rm -f $(LDSO_OBJS)
+
+clean:	clean-ldso-objs
+
+.PHONY:	ldso-objs clean-ldso-objs