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[PR target/70711][ARM] Fix big-endian ARMv8.1-A builds.


When ARMv8.1 support was added to the ARM target, the
bpabi.h/BE8_LINK_SPEC list wasn't updated. That means that when GCC
targets ARMv8.1 big-endian, it fails to generate working binaries.

This patch addds the required 'march=armv8.1-a' entries to
BE8_LINK_SPEC. It also adds the missing entries for armv8-a+crc.

Testing for armeb-none-eabi with cross-compiled check-gcc and with
command line testing to confirm working executables are built.

Is this ok for trunk and for GCC-6 once testing is completed?
Matthew

2016-04-18  Matthew Wahab  <matthew.wahab@arm.com>

	PR target/70711
	* config/arm/bpabi.h (BE8_LINK_SPEC): Add entries for armv8+crc,
	armv8.1-a and armv8.1-a+crc.
>From 627f689c37eeec3f0d846cda4577385158ca8d10 Mon Sep 17 00:00:00 2001
From: Matthew Wahab <matthew.wahab@arm.com>
Date: Mon, 18 Apr 2016 09:32:54 +0100
Subject: [PATCH] [ARM] Fix big-endian ARMv8.1-A builds.

When ARMv8.1 support was added to the ARM target, the
bpabi.h/BE8_LINK_SPEC list wasn't updated. That means that when GCC
targets ARMv8.1 big-endian, it fails to generate working binaries.

This patch addds the required 'march=armv8.1-a' entries to
BE8_LINK_SPEC. It also adds the missing entries for armv8-a+crc.

Tested for armeb-none-eabi with cross-compiled check-gcc and with
command line testing to confirm working executables are built.

Is this ok for trunk and for GCC-6?
Matthew

2016-04-18  Matthew Wahab  <matthew.wahab@arm.com>

	PR target/70711
	* config/arm/bpabi.h (BE8_LINK_SPEC): Add entries for armv8+crc,
	armv8.1-a and armv8.1-a+crc.

Change-Id: I8a825421b6c4355d9fd611432c11a8d7b4d61bbf
---
 gcc/config/arm/bpabi.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/gcc/config/arm/bpabi.h b/gcc/config/arm/bpabi.h
index 5d6c4ed..06488ba 100644
--- a/gcc/config/arm/bpabi.h
+++ b/gcc/config/arm/bpabi.h
@@ -87,6 +87,9 @@
    |march=armv7e-m|mcpu=cortex-m4|mcpu=cortex-m7        \
    |march=armv6-m|mcpu=cortex-m0                        \
    |march=armv8-a					\
+   |march=armv8-a+crc					\
+   |march=armv8.1-a					\
+   |march=armv8.1-a+crc					\
    :%{!r:--be8}}}"
 #else
 #define BE8_LINK_SPEC \
@@ -115,6 +118,9 @@
    |march=armv7e-m|mcpu=cortex-m4|mcpu=cortex-m7        \
    |march=armv6-m|mcpu=cortex-m0                        \
    |march=armv8-a					\
+   |march=armv8-a+crc					\
+   |march=armv8.1-a					\
+   |march=armv8.1-a+crc					\
    :%{!r:--be8}}}"
 #endif
 
-- 
2.1.4


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