3 files changed, 34 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/mips/__syscall_error.c b/libc/sysdeps/linux/mips/__syscall_error.c
new file mode 100644
index 000000000..5e109a83b
--- /dev/null
+++ b/libc/sysdeps/linux/mips/__syscall_error.c
@@ -0,0 +1,18 @@
+/* Wrapper for setting errno.
+ *
+ * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <errno.h>
+#include <features.h>
+
+/* This routine is jumped to by all the syscall handlers, to stash
+ * an error number into errno.  */
+int __syscall_error(int err_no) attribute_hidden;
+int __syscall_error(int err_no)
+{
+	__set_errno(err_no);
+	return -1;
+}
diff --git a/libc/sysdeps/linux/mips/clone.S b/libc/sysdeps/linux/mips/clone.S
index 716cd993f..03162db43 100644
--- a/libc/sysdeps/linux/mips/clone.S
+++ b/libc/sysdeps/linux/mips/clone.S
@@ -125,3 +125,4 @@ __thread_start:
 	move		a0,v0
 	jal		HIDDEN_JUMPTARGET(_exit)
 	.end  __thread_start
+weak_alias(clone, __clone)
diff --git a/libc/sysdeps/linux/mips/sys/asm.h b/libc/sysdeps/linux/mips/sys/asm.h
index 76f6af3e1..4c8bd9cb2 100644
--- a/libc/sysdeps/linux/mips/sys/asm.h
+++ b/libc/sysdeps/linux/mips/sys/asm.h
@@ -469,5 +469,20 @@ symbol		=	value
 # define MFC0	dmfc0
 # define MTC0	dmtc0
 #endif
+/* The MIPS archtectures do not have a uniform memory model.  Particular
+   platforms may provide additional guarantees - for instance, the R4000
+   LL and SC instructions implicitly perform a SYNC, and the 4K promises
+   strong ordering.
+
+   However, in the absence of those guarantees, we must assume weak ordering
+   and SYNC explicitly where necessary.
+
+   Some obsolete MIPS processors may not support the SYNC instruction.  This
+   applies to "true" MIPS I processors; most of the processors which compile
+   using MIPS I implement parts of MIPS II.  */
+
+#ifndef MIPS_SYNC
+# define MIPS_SYNC      sync
+#endif
 
 #endif /* sys/asm.h */