Add a simple realloc test

 -Erik

test/malloc/Makefile

@@ -23,6 +23,7 @@ include $(TESTDIR)/Rules.mak
 TARGETS=malloc
 TARGETS+=testmalloc testmalloc_glibc 
 TARGETS+=mallocbug mallocbug_glibc
+TARGETS+=realloc0 realloc0_glibc
 all: $(TARGETS)
 
 malloc: malloc.c Makefile $(TESTDIR)/Config $(TESTDIR)/Rules.mak $(CC)
@@ -95,6 +96,32 @@ mallocbug_glibc: mallocbug.c Makefile
 	-./$@
 	-@ echo " "
 
+realloc0: realloc0.c Makefile $(TESTDIR)/Config $(TESTDIR)/Rules.mak $(CC)
+	-@ echo "-------"
+	-@ echo " "
+	-@ echo "Compiling vs uClibc: "
+	-@ echo " "
+	$(CC) $(CFLAGS) -c $< -o $@.o
+	$(CC) $(LDFLAGS) $@.o -o $@ $(EXTRA_LIBS)
+	$(STRIPTOOL) -x -R .note -R .comment $@
+	-$(LDD) $@
+	ls -l $@
+	-./$@
+	-@ echo " "
+
+realloc0_glibc: realloc0.c Makefile
+	-@ echo "-------"
+	-@ echo " "
+	-@ echo "Compiling vs GNU libc: "
+	-@ echo " "
+	$(HOST_CC) $(GLIBC_CFLAGS) -c $< -o $@.o
+	$(HOST_CC) $(GLIBC_LDFLAGS) $@.o -o $@
+	$(STRIPTOOL) -x -R .note -R .comment $@
+	-$(LDD) $@
+	ls -l $@
+	-./$@
+	-@ echo " "
+
 
 clean:
 	rm -f *.[oa] *~ core $(TARGETS)

test/malloc/realloc0.c

@@ -0,0 +1,13 @@
+#include <stdlib.h>
+
+int main(int argc, char **argv)
+{
+    void *ptr = NULL;
+    ptr = realloc(ptr, 0);
+    printf("realloc(NULL, 0)  --  pointer = %p\n", ptr);
+    
+    ptr = malloc(0);
+    printf("malloc(0)  --  pointer = %p\n", ptr);
+    return 0;
+}
+