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[ARM] Add command line option for RAS extension.

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This patch adds the architecture extension "+ras" to enable RAS
support. It is enabled by default for -march=armv8.2-a and available but
disabled by default for armv8-a and armv8.1-a.

gas/
	* config/tc-arm.c (arm_ext_v8_2): Rename to arm_ext_ras.
	(arm_ext_ras): Renamed from arm_ext_v8_2.
	(insns): Update for arm_ext_v8_2 renaming.
	(arm_extensions): Add "ras".
	* doc/c-arm.texi (ARM Options): Add an entry for "ras".
	* testsuite/gas/arm/armv8-a+ras.d: New.
	* testsuite/gas/arm/armv8_2-a.d: Add explicit command line
	options.

include/
	* opcode/arm.h (ARM_EXT2_RAS): New.  Also align preceding
	entries.
	(ARM_AEXT_V8_2A): Add ARM_EXT2_RAS.

opcodes/
	* arm-dis.c (arm_opcodes): Replace ARM_EXT_V8_2A with
	ARM_EXT_RAS in relevant entries.
This commit is contained in:
Matthew Wahab 2016-06-07 09:56:42 +01:00
parent e5f5f1fc49
commit 4d1464f294
9 changed files with 93 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
gas/ChangeLog
View File

@ -1,3 +1,14 @@
2016-06-07 Matthew Wahab <matthew.wahab@arm.com>
* config/tc-arm.c (arm_ext_v8_2): Rename to arm_ext_ras.
(arm_ext_ras): Renamed from arm_ext_v8_2.
(insns): Update for arm_ext_v8_2 renaming.
(arm_extensions): Add "ras".
* doc/c-arm.texi (ARM Options): Add an entry for "ras".
* testsuite/gas/arm/armv8-a+ras.d: New.
* testsuite/gas/arm/armv8_2-a.d: Add explicit command line
options.
2016-06-05 Trevor Saunders <tbsaunde+binutils@tbsaunde.org>
* itbl-parse.y (yyerror): Use modern argument declaration style.

11
gas/config/tc-arm.c
View File

@ -223,8 +223,8 @@ static const arm_feature_set arm_ext_atomics =
/* DSP instructions Tag_DSP_extension refers to. */
static const arm_feature_set arm_ext_dsp =
ARM_FEATURE_CORE_LOW (ARM_EXT_V5E | ARM_EXT_V5ExP | ARM_EXT_V6_DSP);
static const arm_feature_set arm_ext_v8_2 =
ARM_FEATURE_CORE_HIGH (ARM_EXT2_V8_2A);
static const arm_feature_set arm_ext_ras =
ARM_FEATURE_CORE_HIGH (ARM_EXT2_RAS);
/* FP16 instructions. */
static const arm_feature_set arm_ext_fp16 =
ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST);
@ -19713,9 +19713,9 @@ static const struct asm_opcode insns[] =
/* ARMv8.2 RAS extension. */
#undef ARM_VARIANT
#define ARM_VARIANT & arm_ext_v8_2
#define ARM_VARIANT & arm_ext_ras
#undef THUMB_VARIANT
#define THUMB_VARIANT & arm_ext_v8_2
#define THUMB_VARIANT & arm_ext_ras
TUE ("esb", 320f010, f3af8010, 0, (), noargs, noargs),
#undef ARM_VARIANT
@ -25508,6 +25508,9 @@ static const struct arm_option_extension_value_table arm_extensions[] =
ARM_EXT_OPT ("pan", ARM_FEATURE_CORE_HIGH (ARM_EXT2_PAN),
ARM_FEATURE (ARM_EXT_V8, ARM_EXT2_PAN, 0),
ARM_FEATURE_CORE_LOW (ARM_EXT_V8)),
ARM_EXT_OPT ("ras", ARM_FEATURE_CORE_HIGH (ARM_EXT2_RAS),
ARM_FEATURE (ARM_EXT_V8, ARM_EXT2_RAS, 0),
ARM_FEATURE_CORE_LOW (ARM_EXT_V8)),
ARM_EXT_OPT ("rdma", FPU_ARCH_NEON_VFP_ARMV8_1,
ARM_FEATURE_COPROC (FPU_NEON_ARMV8 | FPU_NEON_EXT_RDMA),
ARM_FEATURE_CORE_LOW (ARM_EXT_V8)),

2
gas/doc/c-arm.texi
View File

@ -186,6 +186,8 @@ architectures),
@code{virt} (Virtualization Extensions for v7-A architecture, implies
@code{idiv}),
@code{pan} (Priviliged Access Never Extensions for v8-A architecture),
@code{ras} (Reliability, Availability and Serviceability extensions
for v8-A architecture),
@code{rdma} (ARMv8.1 Advanced SIMD extensions for v8-A architecture, implies
@code{simd})
and

55
gas/testsuite/gas/arm/armv8-a+ras.d Normal file
View File

@ -0,0 +1,55 @@
#name: ARMv8-A RAS
#as: -march=armv8-a+ras
#source: armv8_2-a.s
#objdump: -dr
#skip: *-*-pe *-wince-* *-*-coff
.*: +file format .*arm.*
Disassembly of section .text:
[0-9a-f]+ <.*>:
[0-9a-f]+: e320f010 esb
[0-9a-f]+ <.*>:
[0-9a-f]+: f3af 8010 esb
[0-9a-f]+ <.*>:
[0-9a-f]+: ee100f11 mrc 15, 0, r0, cr0, cr1, \{0\}
[0-9a-f]+: ee100fd2 mrc 15, 0, r0, cr0, cr2, \{6\}
[0-9a-f]+: ee150f13 mrc 15, 0, r0, cr5, cr3, \{0\}
[0-9a-f]+: ee150f33 mrc 15, 0, r0, cr5, cr3, \{1\}
[0-9a-f]+: ee051f33 mcr 15, 0, r1, cr5, cr3, \{1\}
[0-9a-f]+: ee150f14 mrc 15, 0, r0, cr5, cr4, \{0\}
[0-9a-f]+: ee150f34 mrc 15, 0, r0, cr5, cr4, \{1\}
[0-9a-f]+: ee051f34 mcr 15, 0, r1, cr5, cr4, \{1\}
[0-9a-f]+: ee150f54 mrc 15, 0, r0, cr5, cr4, \{2\}
[0-9a-f]+: ee051f54 mcr 15, 0, r1, cr5, cr4, \{2\}
[0-9a-f]+: ee150f74 mrc 15, 0, r0, cr5, cr4, \{3\}
[0-9a-f]+: ee051f74 mcr 15, 0, r1, cr5, cr4, \{3\}
[0-9a-f]+: ee150f94 mrc 15, 0, r0, cr5, cr4, \{4\}
[0-9a-f]+: ee150fb4 mrc 15, 0, r0, cr5, cr4, \{5\}
[0-9a-f]+: ee051fb4 mcr 15, 0, r1, cr5, cr4, \{5\}
[0-9a-f]+: ee150ff4 mrc 15, 0, r0, cr5, cr4, \{7\}
[0-9a-f]+: ee051ff4 mcr 15, 0, r1, cr5, cr4, \{7\}
[0-9a-f]+: ee150f15 mrc 15, 0, r0, cr5, cr5, \{0\}
[0-9a-f]+: ee051f15 mcr 15, 0, r1, cr5, cr5, \{0\}
[0-9a-f]+: ee150f35 mrc 15, 0, r0, cr5, cr5, \{1\}
[0-9a-f]+: ee051f35 mcr 15, 0, r1, cr5, cr5, \{1\}
[0-9a-f]+: ee150f95 mrc 15, 0, r0, cr5, cr5, \{4\}
[0-9a-f]+: ee051f95 mcr 15, 0, r1, cr5, cr5, \{4\}
[0-9a-f]+: ee150fb5 mrc 15, 0, r0, cr5, cr5, \{5\}
[0-9a-f]+: ee051fb5 mcr 15, 0, r1, cr5, cr5, \{5\}
[0-9a-f]+: ee1c0f31 mrc 15, 0, r0, cr12, cr1, \{1\}
[0-9a-f]+: ee0c1f31 mcr 15, 0, r1, cr12, cr1, \{1\}
[0-9a-f]+: ee910f91 mrc 15, 4, r0, cr1, cr1, \{4\}
[0-9a-f]+: ee811f91 mcr 15, 4, r1, cr1, cr1, \{4\}
[0-9a-f]+: ee950f72 mrc 15, 4, r0, cr5, cr2, \{3\}
[0-9a-f]+: ee851f72 mcr 15, 4, r1, cr5, cr2, \{3\}
[0-9a-f]+: ee910f31 mrc 15, 4, r0, cr1, cr1, \{1\}
[0-9a-f]+: ee811f31 mcr 15, 4, r1, cr1, cr1, \{1\}
[0-9a-f]+: ee9c0f31 mrc 15, 4, r0, cr12, cr1, \{1\}
[0-9a-f]+: ee8c1f31 mcr 15, 4, r1, cr12, cr1, \{1\}
[0-9a-f]+: eed10f11 mrc 15, 6, r0, cr1, cr1, \{0\}
[0-9a-f]+: eec11f11 mcr 15, 6, r1, cr1, cr1, \{0\}

1
gas/testsuite/gas/arm/armv8_2-a.d
View File

@ -1,4 +1,5 @@
#name: ARMv8.2-A
#as: -march=armv8.2-a
#objdump: -dr
#skip: *-*-pe *-wince-* *-*-coff

6
include/ChangeLog
View File

@ -1,3 +1,9 @@
2016-06-07 Matthew Wahab <matthew.wahab@arm.com>
* opcode/arm.h (ARM_EXT2_RAS): New. Also align preceding
entries.
(ARM_AEXT_V8_2A): Add ARM_EXT2_RAS.
2016-06-02 Andrew Burgess <andrew.burgess@embecosm.com>
* opcode/arc.h (MAX_INSN_ARGS): Increase to 16.

7
include/opcode/arm.h
View File

@ -60,9 +60,10 @@
#define ARM_EXT2_V8_2A 0x00000002 /* ARM V8.2A. */
#define ARM_EXT2_V8M 0x00000004 /* ARM V8M. */
#define ARM_EXT2_ATOMICS 0x00000008 /* ARMv8 atomics. */
#define ARM_EXT2_V6T2_V8M 0x00000010 /* V8M Baseline from V6T2. */
#define ARM_EXT2_V6T2_V8M 0x00000010 /* V8M Baseline from V6T2. */
#define ARM_EXT2_FP16_INST 0x00000020 /* ARM V8.2A FP16 instructions. */
#define ARM_EXT2_V8M_MAIN 0x00000040 /* ARMv8-M Mainline. */
#define ARM_EXT2_V8M_MAIN 0x00000040 /* ARMv8-M Mainline. */
#define ARM_EXT2_RAS 0x00000080 /* RAS extension. */
/* Co-processor space extensions. */
#define ARM_CEXT_XSCALE 0x00000001 /* Allow MIA etc. */
@ -147,7 +148,7 @@
| ARM_EXT_VIRT | ARM_EXT_V8)
#define ARM_AEXT2_V8A (ARM_EXT2_V6T2_V8M | ARM_EXT2_ATOMICS)
#define ARM_AEXT2_V8_1A (ARM_AEXT2_V8A | ARM_EXT2_PAN)
#define ARM_AEXT2_V8_2A (ARM_AEXT2_V8_1A | ARM_EXT2_V8_2A)
#define ARM_AEXT2_V8_2A (ARM_AEXT2_V8_1A | ARM_EXT2_V8_2A | ARM_EXT2_RAS)
#define ARM_AEXT_V8M_BASE (ARM_AEXT_V6SM | ARM_EXT_DIV)
#define ARM_AEXT_V8M_MAIN ARM_AEXT_V7M
#define ARM_AEXT2_V8M (ARM_EXT2_V8M | ARM_EXT2_ATOMICS | ARM_EXT2_V6T2_V8M)

5
opcodes/ChangeLog
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@ -1,3 +1,8 @@
2016-06-07 Matthew Wahab <matthew.wahab@arm.com>
* arm-dis.c (arm_opcodes): Replace ARM_EXT_V8_2A with
ARM_EXT_RAS in relevant entries.
2016-06-03 Peter Bergner <bergner@vnet.ibm.com>
PR binutils/20196

4
opcodes/arm-dis.c
View File

@ -1727,7 +1727,7 @@ static const struct opcode32 arm_opcodes[] =
"%22?sumlal%20's%c\t%12-15Ru, %16-19Ru, %0-3R, %8-11R"},
/* V8.2 RAS extension instructions. */
{ARM_FEATURE_CORE_HIGH (ARM_EXT2_V8_2A),
{ARM_FEATURE_CORE_HIGH (ARM_EXT2_RAS),
0xe320f010, 0xffffffff, "esb"},
/* V8 instructions. */
@ -2696,7 +2696,7 @@ static const struct opcode32 thumb32_opcodes[] =
0xe840f0c0, 0xfff0f0ff, "ttat\t%8-11r, %16-19r"},
/* ARM V8.2 RAS extension instructions. */
{ARM_FEATURE_CORE_HIGH (ARM_EXT2_V8_2A),
{ARM_FEATURE_CORE_HIGH (ARM_EXT2_RAS),
0xf3af8010, 0xffffffff, "esb"},
/* V8 instructions. */