From ea7868016d1af38884a46a92dd70a1c254eee604 Mon Sep 17 00:00:00 2001
From: Kyle Evans <kevans@FreeBSD.org>
Date: Fri, 3 Jan 2020 19:59:42 +0000
Subject: [PATCH] mips: csu: fix compilation w/ LLVM

GCC issues the warning, but with LLVM it is fatal- no matching .cprestore
with .cpload. Reserve some place on the stack and and add the proper
.cprestore to pair it with.

nop added in the !o32 branch to fill out delay slot instruction, just in
case.

Reviewed by:	arichardson
Differential Revision:	https://reviews.freebsd.org/D21697
---
 lib/csu/mips/crt.h | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/lib/csu/mips/crt.h b/lib/csu/mips/crt.h
index 1d967b73ffe4..4dac617c239f 100644
--- a/lib/csu/mips/crt.h
+++ b/lib/csu/mips/crt.h
@@ -34,10 +34,14 @@
     "bal	1f		\n"					\
     "nop			\n"					\
     "1:				\n"					\
-    ".cpload $ra		\n"					\
+    ".cpload	$ra		\n"					\
+    "addu	$sp, $sp, -8	\n"					\
     ".set reorder		\n"					\
+    ".cprestore	4		\n"					\
     ".local	" __STRING(func) "\n"					\
-    "jal	" __STRING(func)
+    "jal	" __STRING(func) "\n"					\
+    "nop			\n"					\
+    "addu	$sp, $sp, 8	\n"
 #else
 #define	INIT_CALL_SEQ(func)						\
     ".set noreorder		\n"					\
@@ -48,6 +52,7 @@
     ".cpsetup $ra, $v0, 1b	\n"					\
     ".local	" __STRING(func) "\n"					\
     "jal	" __STRING(func)
+    "nop			\n"					\
 #endif
 
 #endif