binutils/2.27: backport patch to enable CRC instructions on supported ARMv8-A CPUs

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

diff --git a/package/binutils/2.27/0907-Automatically-enable-CRC-instructions-on-supported-A.patch b/package/binutils/2.27/0907-Automatically-enable-CRC-instructions-on-supported-A.patch
new file mode 100644 (file)
index 0000000..3b7fcfc
--- /dev/null
+++ b/package/binutils/2.27/0907-Automatically-enable-CRC-instructions-on-supported-A.patch
@@ -0,0 +1,88 @@
+From 29a4659015ca7044c2d425d32a0b828e0fbb5ac1 Mon Sep 17 00:00:00 2001
+From: Richard Earnshaw <Richard.Earnshaw@arm.com>
+Date: Wed, 7 Sep 2016 17:14:54 +0100
+Subject: [PATCH] Automatically enable CRC instructions on supported ARMv8-A
+ CPUs.
+
+2016-09-07  Richard Earnshaw  <rearnsha@arm.com>
+
+       * opcode/arm.h (ARM_ARCH_V8A_CRC): New architecture.
+
+2016-09-07  Richard Earnshaw  <rearnsha@arm.com>
+
+       * config/tc-arm.c ((arm_cpus): Use ARM_ARCH_V8A_CRC for all
+       ARMv8-A CPUs except xgene1.
+
+Upstream: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=patch;h=27e5a270962fb92c07e7d476966ba380fa3bb68e
+Signed-off-by: Peter Seiderer <ps.report@gmx.net>
+---
+ gas/config/tc-arm.c  | 18 +++++++++---------
+ include/opcode/arm.h |  2 ++
+ 2 files changed, 11 insertions(+), 9 deletions(-)
+
+diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c
+index 73d05316..7c86184d 100644
+--- a/gas/config/tc-arm.c
++++ b/gas/config/tc-arm.c
+@@ -25332,17 +25332,17 @@ static const struct arm_cpu_option_table arm_cpus[] =
+                                                                 "Cortex-A15"),
+   ARM_CPU_OPT ("cortex-a17",  ARM_ARCH_V7VE,   FPU_ARCH_NEON_VFP_V4,
+                                                                 "Cortex-A17"),
+-  ARM_CPU_OPT ("cortex-a32",    ARM_ARCH_V8A,    FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
++  ARM_CPU_OPT ("cortex-a32",    ARM_ARCH_V8A_CRC, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
+                                                                 "Cortex-A32"),
+-  ARM_CPU_OPT ("cortex-a35",    ARM_ARCH_V8A,    FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
++  ARM_CPU_OPT ("cortex-a35",    ARM_ARCH_V8A_CRC, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
+                                                                 "Cortex-A35"),
+-  ARM_CPU_OPT ("cortex-a53",    ARM_ARCH_V8A,    FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
++  ARM_CPU_OPT ("cortex-a53",    ARM_ARCH_V8A_CRC, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
+                                                                 "Cortex-A53"),
+-  ARM_CPU_OPT ("cortex-a57",    ARM_ARCH_V8A,    FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
++  ARM_CPU_OPT ("cortex-a57",    ARM_ARCH_V8A_CRC, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
+                                                                 "Cortex-A57"),
+-  ARM_CPU_OPT ("cortex-a72",    ARM_ARCH_V8A,    FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
++  ARM_CPU_OPT ("cortex-a72",    ARM_ARCH_V8A_CRC, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
+                                                                 "Cortex-A72"),
+-  ARM_CPU_OPT ("cortex-a73",    ARM_ARCH_V8A,    FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
++  ARM_CPU_OPT ("cortex-a73",    ARM_ARCH_V8A_CRC, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
+                                                                 "Cortex-A73"),
+   ARM_CPU_OPT ("cortex-r4",   ARM_ARCH_V7R,    FPU_NONE,        "Cortex-R4"),
+   ARM_CPU_OPT ("cortex-r4f",  ARM_ARCH_V7R,    FPU_ARCH_VFP_V3D16,
+@@ -25361,10 +25361,10 @@ static const struct arm_cpu_option_table arm_cpus[] =
+   ARM_CPU_OPT ("cortex-m1",   ARM_ARCH_V6SM,   FPU_NONE,        "Cortex-M1"),
+   ARM_CPU_OPT ("cortex-m0",   ARM_ARCH_V6SM,   FPU_NONE,        "Cortex-M0"),
+   ARM_CPU_OPT ("cortex-m0plus",       ARM_ARCH_V6SM,   FPU_NONE,        "Cortex-M0+"),
+-  ARM_CPU_OPT ("exynos-m1",   ARM_ARCH_V8A,    FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
++  ARM_CPU_OPT ("exynos-m1",   ARM_ARCH_V8A_CRC, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
+                                                                 "Samsung " \
+                                                                 "Exynos M1"),
+-  ARM_CPU_OPT ("qdf24xx",     ARM_ARCH_V8A,    FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
++  ARM_CPU_OPT ("qdf24xx",     ARM_ARCH_V8A_CRC, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
+                                                                 "Qualcomm "
+                                                                 "QDF24XX"),
+ 
+@@ -25389,7 +25389,7 @@ static const struct arm_cpu_option_table arm_cpus[] =
+   /* APM X-Gene family.  */
+   ARM_CPU_OPT ("xgene1",        ARM_ARCH_V8A,    FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
+                                                                 "APM X-Gene 1"),
+-  ARM_CPU_OPT ("xgene2",        ARM_ARCH_V8A,    FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
++  ARM_CPU_OPT ("xgene2",        ARM_ARCH_V8A_CRC, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
+                                                                 "APM X-Gene 2"),
+ 
+   { NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE, NULL }
+diff --git a/include/opcode/arm.h b/include/opcode/arm.h
+index 60715cf8..feace5cd 100644
+--- a/include/opcode/arm.h
++++ b/include/opcode/arm.h
+@@ -263,6 +263,8 @@
+ #define ARM_ARCH_V7M  ARM_FEATURE_CORE (ARM_AEXT_V7M, ARM_EXT2_V6T2_V8M)
+ #define ARM_ARCH_V7EM ARM_FEATURE_CORE (ARM_AEXT_V7EM, ARM_EXT2_V6T2_V8M)
+ #define ARM_ARCH_V8A  ARM_FEATURE_CORE (ARM_AEXT_V8A, ARM_AEXT2_V8A)
++#define ARM_ARCH_V8A_CRC ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8A, \
++                                    CRC_EXT_ARMV8)
+ #define ARM_ARCH_V8_1A        ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_1A,     \
+                                    CRC_EXT_ARMV8 | FPU_NEON_EXT_RDMA)
+ #define ARM_ARCH_V8_2A        ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_2A,     \
+-- 
+2.11.0
+