2 files changed, 61 insertions, 4 deletions
diff --git a/libc/stdlib/malloc/Makefile b/libc/stdlib/malloc/Makefile
index ba2567f12..fe3f8b424 100644
--- a/libc/stdlib/malloc/Makefile
+++ b/libc/stdlib/malloc/Makefile
@@ -27,13 +27,22 @@ LIBC=$(TOPDIR)libc.a
 CSRC=malloc.c
 COBJS=$(patsubst %.c,%.o, $(CSRC))
 
+MSRC=alloc.c
+MOBJ=malloc_dbg.o free_dbg.o calloc_dbg.o
+OBJS=$(COBJS) $(MOBJ)
 
-all: $(COBJS) $(LIBC)
+all: $(OBJS) $(LIBC)
 
-$(LIBC): $(COBJS)
-	$(AR) $(ARFLAGS) $(LIBC) $(COBJS)
+$(LIBC): ar-target
 
-$(COBJS): Makefile
+ar-target: $(OBJS)
+	$(AR) $(ARFLAGS) $(LIBC) $(OBJS)
+
+$(MOBJ): $(MSRC)
+	$(CC) $(CFLAGS) -DL_$* $< -c -o $*.o
+
+$(OBJ): Makefile
 
 clean:
 	rm -f *.[oa] *~ core
+
diff --git a/libc/stdlib/malloc/alloc.c b/libc/stdlib/malloc/alloc.c
new file mode 100644
index 000000000..b782f6dcf
--- /dev/null
+++ b/libc/stdlib/malloc/alloc.c
@@ -0,0 +1,48 @@
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+
+#ifdef L_calloc_dbg
+
+void *
+calloc_dbg(size_t num, size_t size, char * function, char * file, int line)
+{
+	void * ptr;
+	fprintf(stderr, "calloc of %d bytes at %s @%s:%d = ", num*size, function, file, line);
+	ptr = calloc(num,size);
+	fprintf(stderr, "%p\n", ptr);
+	return ptr;
+}
+
+#endif
+
+#ifdef L_malloc_dbg
+
+void *
+malloc_dbg(size_t len, char * function, char * file, int line)
+{
+	void * result;
+	fprintf(stderr, "malloc of %d bytes at %s @%s:%d = ", len, function, file, line);
+	result = malloc(len);
+	fprintf(stderr, "%p\n", result);    
+	return result;
+}
+
+#endif
+
+#ifdef L_free_dbg
+
+void
+free_dbg(void * ptr, char * function, char * file, int line)
+{
+	fprintf(stderr, "free of %p at %s @%s:%d\n", ptr, function, file, line);
+  	free(ptr);
+}
+
+#endif
+
+