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aarch64: Add support for Armv8-R system registers

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This patch adds support for the system registers introduced in Armv8-R
AArch64.

gas/ChangeLog:

2020-09-08  Alex Coplan  <alex.coplan@arm.com>

	* config/tc-aarch64.c (parse_sys_reg): Also pass sysreg name to
	validation function.
	(parse_sys_ins_reg): Likewise.
	(print_operands): Pass CPU features to aarch64_print_operand().
	* testsuite/gas/aarch64/v8-r-bad-sysregs.d: New test.
	* testsuite/gas/aarch64/v8-r-bad-sysregs.l: Error output.
	* testsuite/gas/aarch64/v8-r-bad-sysregs.s: Input.
	* testsuite/gas/aarch64/v8-r-sysregs-need-arch.d: New test.
	* testsuite/gas/aarch64/v8-r-sysregs-need-arch.l: Error output.
	* testsuite/gas/aarch64/v8-r-sysregs.d: New test.
	* testsuite/gas/aarch64/v8-r-sysregs.s: Input for previous two tests.

include/ChangeLog:

2020-09-08  Alex Coplan  <alex.coplan@arm.com>

	* opcode/aarch64.h (aarch64_sys_ins_reg_supported_p): Also take
	system register name in order to simplify validation for v8-R.
	(aarch64_print_operand): Also take CPU feature set, as disassembly for
	system registers now depends on arch variant.

opcodes/ChangeLog:

2020-09-08  Alex Coplan  <alex.coplan@arm.com>

	* aarch64-dis.c (print_operands): Pass CPU features to
	aarch64_print_operand().
	* aarch64-opc.c (aarch64_print_operand): Use CPU features to determine
	preferred disassembly of system registers.
	(SR_RNG): Refactor to use new SR_FEAT2 macro.
	(SR_FEAT2): New.
	(SR_V8_1_A): New.
	(SR_V8_4_A): New.
	(SR_V8_A): New.
	(SR_V8_R): New.
	(SR_EXPAND_ELx): New.
	(SR_EXPAND_EL12): New.
	(aarch64_sys_regs): Specify which registers are only on
	A-profile, add R-profile system registers.
	(ENC_BARLAR): New.
	(PRBARn_ELx): New.
	(PRLARn_ELx): New.
	(aarch64_sys_ins_reg_supported_p): Reject EL3 registers for
	Armv8-R AArch64.
This commit is contained in:
Alex Coplan
2020-09-08 14:21:44 +01:00
parent 03fb3142c7
commit 38cf07a6c0
14 changed files with 597 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
include/opcode/aarch64.h
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@ -977,7 +977,8 @@ typedef struct
extern bfd_boolean aarch64_sys_ins_reg_has_xt (const aarch64_sys_ins_reg *);
extern bfd_boolean
aarch64_sys_ins_reg_supported_p (const aarch64_feature_set, aarch64_insn,
aarch64_sys_ins_reg_supported_p (const aarch64_feature_set,
const char *reg_name, aarch64_insn,
uint32_t, aarch64_feature_set);
extern const aarch64_sys_ins_reg aarch64_sys_regs_ic [];
@ -1270,7 +1271,8 @@ aarch64_get_opcode (enum aarch64_op);
extern void
aarch64_print_operand (char *, size_t, bfd_vma, const aarch64_opcode *,
const aarch64_opnd_info *, int, int *, bfd_vma *,
char **);
char **,
aarch64_feature_set features);
/* Miscellaneous interface. */