The mmap syscall has 6 arguments, which has various implementations

on different architectures.

test/mmap/Makefile

@@ -0,0 +1,22 @@
+TESTDIR=../
+include $(TESTDIR)/Rules.mak
+
+
+TARGETS=mmap
+all: $(TARGETS)
+
+mmap: mmap.c Makefile $(TESTDIR)/Config $(TESTDIR)/Rules.mak $(TESTCC)
+	-@ echo "-------"
+	-@ echo " "
+	-@ echo "Compiling vs uClibc: "
+	-@ echo " "
+	$(TESTCC) $(CFLAGS) -c $< -o $@.o
+	$(TESTCC) $(LDFLAGS) $@.o -o $@ $(EXTRA_LIBS)
+	$(STRIPTOOL) -x -R .note -R .comment $@
+	-./$@
+	-@ echo " "
+
+clean:
+	rm -f *.[oa] *~ core $(TARGETS)
+
+

test/mmap/mmap.c

@@ -0,0 +1,28 @@
+
+/* The mmap test is useful, since syscalls with 6 arguments
+ * (as mmap) are done differently on various architectures.
+ */
+
+#include <unistd.h>
+#include <sys/mman.h>
+#include <stdlib.h>
+
+
+int main(int argc,char *argv)
+{
+	void *ptr;
+
+
+	ptr = mmap(NULL, 4096, PROT_READ|PROT_WRITE,
+		MAP_PRIVATE|MAP_ANONYMOUS,
+		0, 0);
+
+	if(ptr==MAP_FAILED){
+		perror("mmap");
+		exit(1);
+	}else{
+		printf("mmap returned %p\n",ptr);
+		exit(0);
+	}
+}
+