arm: add armv9-a architecture to -march

Update also include:
	+ New value of Tag_CPU_arch EABI attribute (22) is added.
	+ Updated missing Tag_CPU_arch EABI attributes.
	+ Updated how we combine archs 'v4t_plus_v6_m' as this mechanism
	  have to handle new Armv9 as well.

Regression tested on `arm-none-eabi` cross Binutils and no issues.

bfd/

	* archures.c: Define bfd_mach_arm_9.
	* bfd-in2.h (bfd_mach_arm_9): Define bfd_mach_arm_9.
	* cpu-arm.c: Add 'armv9-a' option to -march.
	* elf32-arm.c (using_thumb2_bl): Update assert check.
	(arch_has_arm_nop): Add TAG_CPU_ARCH_V9.
	(bfd_arm_get_mach_from_attributes): Add case for TAG_CPU_ARCH_V9.
	Update assert.
	(tag_cpu_arch_combine): Updated table.
	(v9): New table..

binutils/

	* readelf.c (arm_attr_tag_CPU_arch): Update with

elfcpp/

	* arm.h: Update TAG_CPU_ARCH_ enums with correct values.

gas/

	* NEWS: Update docs.
	* config/tc-arm.c (get_aeabi_cpu_arch_from_fset): Return Armv9-a
	for -amarch=all.
	(aeabi_set_public_attributes): Update assert.
	* doc/c-arm.texi: Update docs.
	* testsuite/gas/arm/armv9-a_arch.d: New test.
	* testsuite/gas/arm/attr-march-all.d: Update test with v9.

include/

	* elf/arm.h Update TAG_CPU_ARCH_ defines with correct values.
	* opcode/arm.h (ARM_EXT3_V9A): New macro.
	(ARM_ARCH_NONE): Updated with arm_feature_set.core size.
	(FPU_NONE): Updated.
	(ARM_ANY): Updated.
	(ARM_ARCH_UNKNOWN): New macro.
	(ARM_FEATURE_LOW): Updated.
	(ARM_FEATURE_CORE): Updated.
	(ARM_FEATURE_CORE_LOW): Updated.
	(ARM_FEATURE_CORE_HIGH): Updated.
	(ARM_FEATURE_COPROC): Updated.
	(ARM_FEATURE): Updated.
	(ARM_FEATURE_ALL): New macro.

opcodes/

	* arm-dis.c (select_arm_features): Support bfd_mach_arm_9.
	Also Update bfd_mach_arm_unknown to use new macro ARM_ARCH_UNKNOWN.

1 files changed, 2 insertions, 3 deletions

diff --git a/opcodes/arm-dis.c b/opcodes/arm-dis.c
index 5252d36..1888d9a 100644
--- a/opcodes/arm-dis.c
+++ b/opcodes/arm-dis.c
@@ -12028,12 +12028,11 @@ select_arm_features (unsigned long mach,
       ARM_MERGE_FEATURE_SETS (arch_fset, arch_fset, mve_all);
       force_thumb = 1;
       break;
+    case bfd_mach_arm_9:         ARM_SET_FEATURES (ARM_ARCH_V9A); break;
       /* If the machine type is unknown allow all architecture types and all
 	 extensions, with the exception of MVE as that clashes with NEON.  */
     case bfd_mach_arm_unknown:
-      ARM_SET_FEATURES (ARM_FEATURE (-1,
-				     -1 & ~(ARM_EXT2_MVE | ARM_EXT2_MVE_FP),
-				     -1));
+      ARM_SET_FEATURES (ARM_ARCH_UNKNOWN);
       break;
     default:
       abort ();