1 files changed, 42 insertions, 0 deletions
diff --git a/newlib/testsuite/newlib.elix/tmmap.c b/newlib/testsuite/newlib.elix/tmmap.c
new file mode 100644
index 000000000..d930c96b1
--- /dev/null
+++ b/newlib/testsuite/newlib.elix/tmmap.c
@@ -0,0 +1,42 @@
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include "check.h"
+
+int main()
+{
+  int fd;
+  char *x;
+  FILE *fp;
+  char buf[40];
+
+  fd = open("my.file", O_CREAT | O_TRUNC | O_RDWR, 0644);
+
+  CHECK (fd != -1);
+
+  CHECK (write (fd, "abcdefgh", 8) == 8); 
+ 
+  x = (char *)mmap (0, 20, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+
+  CHECK (x != MAP_FAILED);
+
+  x[3] = 'j';
+
+  CHECK (munmap (x, 20) == 0);
+
+  CHECK (close(fd) != -1);
+
+  fp = fopen("my.file","r");
+
+  CHECK (fp != NULL);
+
+  CHECK (fread(buf, 1, 20, fp) == 8);
+
+  CHECK (strncmp (buf, "abcjefgh", 8) == 0);
+
+  exit (0);
+}
+