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| author | Szabolcs Nagy <szabolcs.nagy@arm.com> | 2016-11-18 09:49:06 +0000 |
|---|---|---|
| committer | Szabolcs Nagy <szabolcs.nagy@arm.com> | 2016-11-18 09:49:06 +0000 |
| commit | 3f06e55061d0d8f72dfd11f6c432c23f45d9b597 (patch) | |
| tree | 6f63bbc6a1be5e476b4333ef45e16516cc272869 /opcodes/aarch64-dis.c | |
| parent | 6ec49e7c0aeb6d98e379319b565aee2c89388615 (diff) | |
| download | gdb-3f06e55061d0d8f72dfd11f6c432c23f45d9b597.zip gdb-3f06e55061d0d8f72dfd11f6c432c23f45d9b597.tar.gz gdb-3f06e55061d0d8f72dfd11f6c432c23f45d9b597.tar.bz2 | |
[AArch64] Add ARMv8.3 combined pointer authentication load instructions
Add support for ARMv8.3 LDRAA and LDRAB combined pointer authentication and
load instructions.
These instructions authenticate the base register and load 8 byte from it plus
a scaled 10-bit offset with optional writeback to update the base register.
A new instruction class (ldst_imm10) and operand type (AARCH64_OPND_ADDR_SIMM10)
were introduced to handle the special addressing form.
include/
2016-11-18 Szabolcs Nagy <szabolcs.nagy@arm.com>
* opcode/aarch64.h (enum aarch64_opnd): Add AARCH64_OPND_ADDR_SIMM10.
(enum aarch64_insn_class): Add ldst_imm10.
opcodes/
2016-11-18 Szabolcs Nagy <szabolcs.nagy@arm.com>
* aarch64-tbl.h (QL_X1NIL): New.
(arch64_opcode_table): Add ldraa, ldrab.
(AARCH64_OPERANDS): Add "ADDR_SIMM10".
* aarch64-asm.h (aarch64_ins_addr_simm10): Declare.
* aarch64-asm.c (aarch64_ins_addr_simm10): Define.
* aarch64-dis.h (aarch64_ext_addr_simm10): Declare.
* aarch64-dis.c (aarch64_ext_addr_simm10): Define.
* aarch64-opc.h (enum aarch64_field_kind): Add FLD_S_simm10.
* aarch64-opc.c (fields): Add data for FLD_S_simm10.
(operand_general_constraint_met_p): Handle AARCH64_OPND_ADDR_SIMM10.
(aarch64_print_operand): Likewise.
* aarch64-asm-2.c: Regenerate.
* aarch64-dis-2.c: Regenerate.
* aarch64-opc-2.c: Regenerate.
gas/
2016-11-18 Szabolcs Nagy <szabolcs.nagy@arm.com>
* config/tc-aarch64.c (parse_operands): Handle AARCH64_OPND_ADDR_SIMM10.
(fix_insn): Likewise.
(warn_unpredictable_ldst): Handle ldst_imm10.
* testsuite/gas/aarch64/pac.s: Add ldraa and ldrab tests.
* testsuite/gas/aarch64/pac.d: Likewise.
* testsuite/gas/aarch64/illegal-ldraa.s: New.
* testsuite/gas/aarch64/illegal-ldraa.l: New.
* testsuite/gas/aarch64/illegal-ldraa.d: New.
Diffstat (limited to 'opcodes/aarch64-dis.c')
| -rw-r--r-- | opcodes/aarch64-dis.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/opcodes/aarch64-dis.c b/opcodes/aarch64-dis.c index 188006e..17bd342 100644 --- a/opcodes/aarch64-dis.c +++ b/opcodes/aarch64-dis.c @@ -981,6 +981,27 @@ aarch64_ext_addr_uimm12 (const aarch64_operand *self, aarch64_opnd_info *info, return 1; } +/* Decode the address operand for e.g. LDRAA <Xt>, [<Xn|SP>{, #<simm>}]. */ +int +aarch64_ext_addr_simm10 (const aarch64_operand *self, aarch64_opnd_info *info, + aarch64_insn code, + const aarch64_inst *inst ATTRIBUTE_UNUSED) +{ + aarch64_insn imm; + + info->qualifier = get_expected_qualifier (inst, info->idx); + /* Rn */ + info->addr.base_regno = extract_field (self->fields[0], code, 0); + /* simm10 */ + imm = extract_fields (code, 0, 2, self->fields[1], self->fields[2]); + info->addr.offset.imm = sign_extend (imm, 9) << 3; + if (extract_field (self->fields[3], code, 0) == 1) { + info->addr.writeback = 1; + info->addr.preind = 1; + } + return 1; +} + /* Decode the address operand for e.g. LD1 {<Vt>.<T>, <Vt2>.<T>, <Vt3>.<T>}, [<Xn|SP>], <Xm|#<amount>>. */ int |