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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
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7
include/opcode/arm.h
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@ -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)