Squash commits for public release

test/kernel/fs/procfs/BUILD.gn

@@ -0,0 +1,8 @@
+import("//build/test/TEMPLATE.gni")
+
+xOS_test("procfs") {
+  test_bundle = "kernel/fs/procfs"
+  sources = [ "main.c" ]
+  configs = [ "//build/userland:userland_flags" ]
+  deplibs = [ "libc" ]
+}

test/kernel/fs/procfs/main.c

@@ -0,0 +1,21 @@
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+int main(int argc, char** argv)
+{
+    int fd = 0;
+    fd = open("/proc/stat", O_RDWR);
+    if (fd > 0) {
+        TestErr("Opened /proc/stat for write");
+    }
+
+    fd = open("/proc/stat", O_RDONLY);
+    if (fd <= 0) {
+        TestErr("Can't open /proc/stat for read");
+    }
+
+    return 0;
+}