Fix some error on mips.

Author: ClarkWang-2013

src/bootstrap/bootstrap.py

@@ -695,6 +695,10 @@ def build_bootstrap(self):
         if self.get_toml("deny-warnings", "rust") != "false":
             env["RUSTFLAGS"] += " -Dwarnings"
 
+        # Fix hit the limit of 8K GOT entries per single object file
+        if self.build_triple().startswith('mips'):
+            env["RUSTFLAGS"] += " -Cllvm-args=-mxgot"
+
         env["PATH"] = os.path.join(self.bin_root(), "bin") + \
             os.pathsep + env["PATH"]
         if not os.path.isfile(self.cargo()):

src/libstd/sys/unix/rand.rs

@@ -52,7 +52,7 @@ mod imp {
                 let err = errno() as libc::c_int;
                 if err == libc::EINTR {
                     continue;
-                } else if err == libc::ENOSYS || err == libc::EPERM {
+                } else if err == libc::ENOSYS || err == libc::EPERM || err == libc::EINVAL {
                     // Fall back to reading /dev/urandom if `getrandom` is not
                     // supported on the current kernel.
                     //