guile: Add earlyclobber constraint to the SMULL outputs.

backport a patch to fix issue:
{standard input}: Assembler messages:
{standard input}:16966: rdhi, rdlo and rm must all be different

(From OE-Core rev: a8767bff39730e4905c55942109d69aae5867fe1)

Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 44 insertions, 0 deletions

diff --git a/meta/recipes-devtools/guile/files/libguile-VM-ASM_MUL-for-ARM-Add-earlyclobber.patch b/meta/recipes-devtools/guile/files/libguile-VM-ASM_MUL-for-ARM-Add-earlyclobber.patch
new file mode 100644
index 0000000000..e50059a7e6
--- /dev/null
+++ b/meta/recipes-devtools/guile/files/libguile-VM-ASM_MUL-for-ARM-Add-earlyclobber.patch
@@ -0,0 +1,43 @@
+From a85c78ea1393985fdb6e6678dea19135c553d341 Mon Sep 17 00:00:00 2001
+From: Mark H Weaver <mhw@netris.org>
+Date: Fri, 19 Sep 2014 21:18:09 -0400
+Subject: [PATCH] VM: ASM_MUL for ARM: Add earlyclobber constraint to the SMULL
+ outputs.
+
+Reported by Rob Browning <rlb@defaultvalue.org>.
+
+* libguile/vm-i-scheme.c (ASM_MUL)[ARM]: Add earlyclobber (&) constraint
+  to the SMULL output registers.
+
+Author: Mark H Weaver <mhw@netris.org>
+
+Upstream-Status: Backport
+
+Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
+---
+ libguile/vm-i-scheme.c | 5 ++---
+ 1 file changed, 2 insertions(+), 3 deletions(-)
+
+diff --git a/libguile/vm-i-scheme.c b/libguile/vm-i-scheme.c
+index 587aa95..162efab 100644
+--- a/libguile/vm-i-scheme.c
++++ b/libguile/vm-i-scheme.c
+@@ -1,5 +1,4 @@
+-/* Copyright (C) 2001, 2009, 2010, 2011, 2012, 2013,
+- *   2014 Free Software Foundation, Inc.
++/* Copyright (C) 2001, 2009-2014 Free Software Foundation, Inc.
+  * 
+  * This library is free software; you can redistribute it and/or
+  * modify it under the terms of the GNU Lesser General Public License
+@@ -363,7 +362,7 @@ VM_DEFINE_FUNCTION (149, ge, "ge?", 2)
+       {                                                                        \
+        scm_t_signed_bits rlo, rhi;                                     \
+        asm ("smull %0, %1, %2, %3\n"                                   \
+-            : "=r" (rlo), "=r" (rhi)                                   \
++            : "=&r" (rlo), "=&r" (rhi)                                 \
+             : "r" (SCM_UNPACK (x) - scm_tc2_int),                      \
+               "r" (SCM_I_INUM (y)));                                   \
+        if (SCM_LIKELY (SCM_SRS (rlo, 31) == rhi))                      \
+-- 
+2.3.5
+
diff --git a/meta/recipes-devtools/guile/guile_2.0.11.bb b/meta/recipes-devtools/guile/guile_2.0.11.bb
index 621fa0f52b..ea9017bdd9 100644
--- a/meta/recipes-devtools/guile/guile_2.0.11.bb
+++ b/meta/recipes-devtools/guile/guile_2.0.11.bb
@@ -22,6 +22,7 @@ SRC_URI = "${GNU_MIRROR}/guile/guile-${PV}.tar.xz \
            file://arm_aarch64.patch \
            file://workaround-ice-ssa-corruption.patch \
            file://libguile-Makefile.am-hook.patch \
+           file://libguile-VM-ASM_MUL-for-ARM-Add-earlyclobber.patch \
            "
 
 #           file://debian/0001-Change-guile-to-guile-X.Y-for-info-pages.patch