aarch64: Extract Pointer Authentication feature from Armv8.3-A

Extract PAC (Pointer Authentication) feature from Armv8.3-A.
Please note that PAC stays a Armv8.3-A feature but now can be
assigned to other architectures or CPUs.

diff --git a/include/ChangeLog b/include/ChangeLog
index 252b494b1f72403e8430a2f6e0f6d76e06778ed7..846b3d168e20d656fb386cfcd83e70a662fd16d5 100644 (file)
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,8 @@
+2020-11-06  Przemyslaw Wirkus  <przemyslaw.wirkus@arm.com>
+
+       * opcode/aarch64.h (AARCH64_FEATURE_PAC): Add new feature.
+       (AARCH64_ARCH_V8_3): Add back PAC to Armv8.3-A.
+
 2020-11-04  Przemyslaw Wirkus  <przemyslaw.wirkus@arm.com>
 
        * opcode/aarch64.h (AARCH64_ARCH_V8): Add RAS to Armv8-A.

diff --git a/include/opcode/aarch64.h b/include/opcode/aarch64.h
index efa265717ada2ca7327467fecd73027c02b2766c..ffde1ba374d360a5e6d94e7721474e414e8e9e22 100644 (file)
--- a/include/opcode/aarch64.h
+++ b/include/opcode/aarch64.h
@@ -53,6 +53,7 @@ typedef uint32_t aarch64_insn;
 #define AARCH64_FEATURE_V8_7        (1ULL << 13) /* Armv8.7 processors.  */
 #define AARCH64_FEATURE_CSRE        (1ULL << 14) /* CSRE feature.  */
 #define AARCH64_FEATURE_LS64        (1ULL << 15) /* Atomic 64-byte load/store.  */
+#define AARCH64_FEATURE_PAC         (1ULL << 16) /* v8.3 Pointer Authentication.  */
 #define AARCH64_FEATURE_FP          (1ULL << 17) /* FP instructions.  */
 #define AARCH64_FEATURE_SIMD        (1ULL << 18) /* SIMD instructions.  */
 #define AARCH64_FEATURE_CRC         (1ULL << 19) /* CRC instructions.  */
@@ -110,6 +111,7 @@ typedef uint32_t aarch64_insn;
                                                 AARCH64_FEATURE_V8_2)
 #define AARCH64_ARCH_V8_3      AARCH64_FEATURE (AARCH64_ARCH_V8_2,     \
                                                 AARCH64_FEATURE_V8_3   \
+                                                | AARCH64_FEATURE_PAC  \
                                                 | AARCH64_FEATURE_RCPC \
                                                 | AARCH64_FEATURE_COMPNUM)
 #define AARCH64_ARCH_V8_4      AARCH64_FEATURE (AARCH64_ARCH_V8_3,     \

diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index 44db63c540914c891796f0631f60cb1b4f4eaa72..fb6c79e6299aa1cb089babb21c27290a1605bc58 100644 (file)
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,10 @@
+2020-11-06  Przemyslaw Wirkus  <przemyslaw.wirkus@arm.com>
+
+       * aarch64-tbl.h (PAC): Handle for PAC feature.
+       (PAC_INSN): New PAC instruction.
+       (struct aarch64_opcode):  Move PAC instructions from V8_3_INSN to
+       PAC_INSN.
+
 2020-11-04  Przemyslaw Wirkus  <przemyslaw.wirkus@arm.com>
 
        * aarch64-opc.c: Add RAS 1.1 new system registers: ERXPFGCTL_EL1,

diff --git a/opcodes/aarch64-tbl.h b/opcodes/aarch64-tbl.h
index d7cdec6e598d74e5ab9adaec4efadf10528302e6..f86dde5564492d212e723077c622d29da6d08208 100644 (file)
--- a/opcodes/aarch64-tbl.h
+++ b/opcodes/aarch64-tbl.h
@@ -2350,6 +2350,8 @@ static const aarch64_feature_set aarch64_feature_v8_3 =
   AARCH64_FEATURE (AARCH64_FEATURE_V8_3, 0);
 static const aarch64_feature_set aarch64_feature_fp_v8_3 =
   AARCH64_FEATURE (AARCH64_FEATURE_V8_3 | AARCH64_FEATURE_FP, 0);
+static const aarch64_feature_set aarch64_feature_pac =
+  AARCH64_FEATURE (AARCH64_FEATURE_PAC, 0);
 static const aarch64_feature_set aarch64_feature_compnum =
   AARCH64_FEATURE (AARCH64_FEATURE_COMPNUM, 0);
 static const aarch64_feature_set aarch64_feature_rcpc =
@@ -2434,6 +2436,7 @@ static const aarch64_feature_set aarch64_feature_ls64 =
 #define SVE            &aarch64_feature_sve
 #define ARMV8_3                &aarch64_feature_v8_3
 #define FP_V8_3                &aarch64_feature_fp_v8_3
+#define PAC            &aarch64_feature_pac
 #define COMPNUM                &aarch64_feature_compnum
 #define RCPC           &aarch64_feature_rcpc
 #define SHA2           &aarch64_feature_sha2
@@ -2498,6 +2501,8 @@ static const aarch64_feature_set aarch64_feature_ls64 =
     FLAGS | F_STRICT, CONSTRAINTS, TIED, NULL }
 #define V8_3_INSN(NAME,OPCODE,MASK,CLASS,OPS,QUALS,FLAGS) \
   { NAME, OPCODE, MASK, CLASS, 0, ARMV8_3, OPS, QUALS, FLAGS, 0, 0, NULL }
+#define PAC_INSN(NAME,OPCODE,MASK,CLASS,OPS,QUALS,FLAGS) \
+  { NAME, OPCODE, MASK, CLASS, 0, PAC, OPS, QUALS, FLAGS, 0, 0, NULL }
 #define CNUM_INSN(NAME,OPCODE,MASK,CLASS,OP,OPS,QUALS,FLAGS) \
   { NAME, OPCODE, MASK, CLASS, OP, COMPNUM, OPS, QUALS, FLAGS, 0, 0, NULL }
 #define RCPC_INSN(NAME,OPCODE,MASK,CLASS,OPS,QUALS,FLAGS) \
@@ -3255,18 +3260,18 @@ struct aarch64_opcode aarch64_opcode_table[] =
   CORE_INSN ("ret", 0xd65f0000, 0xfffffc1f, branch_reg, 0, OP1 (Rn), QL_I1X, F_OPD0_OPT | F_DEFAULT (30)),
   CORE_INSN ("eret", 0xd69f03e0, 0xffffffff, branch_reg, 0, OP0 (), {}, 0),
   CORE_INSN ("drps", 0xd6bf03e0, 0xffffffff, branch_reg, 0, OP0 (), {}, 0),
-  V8_3_INSN ("braa", 0xd71f0800, 0xfffffc00, branch_reg, OP2 (Rn, Rd_SP), QL_I2SAMEX, 0),
-  V8_3_INSN ("brab", 0xd71f0c00, 0xfffffc00, branch_reg, OP2 (Rn, Rd_SP), QL_I2SAMEX, 0),
-  V8_3_INSN ("blraa", 0xd73f0800, 0xfffffc00, branch_reg, OP2 (Rn, Rd_SP), QL_I2SAMEX, 0),
-  V8_3_INSN ("blrab", 0xd73f0c00, 0xfffffc00, branch_reg, OP2 (Rn, Rd_SP), QL_I2SAMEX, 0),
-  V8_3_INSN ("braaz", 0xd61f081f, 0xfffffc1f, branch_reg, OP1 (Rn), QL_I1X, 0),
-  V8_3_INSN ("brabz", 0xd61f0c1f, 0xfffffc1f, branch_reg, OP1 (Rn), QL_I1X, 0),
-  V8_3_INSN ("blraaz", 0xd63f081f, 0xfffffc1f, branch_reg, OP1 (Rn), QL_I1X, 0),
-  V8_3_INSN ("blrabz", 0xd63f0c1f, 0xfffffc1f, branch_reg, OP1 (Rn), QL_I1X, 0),
-  V8_3_INSN ("retaa", 0xd65f0bff, 0xffffffff, branch_reg, OP0 (), {}, 0),
-  V8_3_INSN ("retab", 0xd65f0fff, 0xffffffff, branch_reg, OP0 (), {}, 0),
-  V8_3_INSN ("eretaa", 0xd69f0bff, 0xffffffff, branch_reg, OP0 (), {}, 0),
-  V8_3_INSN ("eretab", 0xd69f0fff, 0xffffffff, branch_reg, OP0 (), {}, 0),
+  PAC_INSN ("braa", 0xd71f0800, 0xfffffc00, branch_reg, OP2 (Rn, Rd_SP), QL_I2SAMEX, 0),
+  PAC_INSN ("brab", 0xd71f0c00, 0xfffffc00, branch_reg, OP2 (Rn, Rd_SP), QL_I2SAMEX, 0),
+  PAC_INSN ("blraa", 0xd73f0800, 0xfffffc00, branch_reg, OP2 (Rn, Rd_SP), QL_I2SAMEX, 0),
+  PAC_INSN ("blrab", 0xd73f0c00, 0xfffffc00, branch_reg, OP2 (Rn, Rd_SP), QL_I2SAMEX, 0),
+  PAC_INSN ("braaz", 0xd61f081f, 0xfffffc1f, branch_reg, OP1 (Rn), QL_I1X, 0),
+  PAC_INSN ("brabz", 0xd61f0c1f, 0xfffffc1f, branch_reg, OP1 (Rn), QL_I1X, 0),
+  PAC_INSN ("blraaz", 0xd63f081f, 0xfffffc1f, branch_reg, OP1 (Rn), QL_I1X, 0),
+  PAC_INSN ("blrabz", 0xd63f0c1f, 0xfffffc1f, branch_reg, OP1 (Rn), QL_I1X, 0),
+  PAC_INSN ("retaa", 0xd65f0bff, 0xffffffff, branch_reg, OP0 (), {}, 0),
+  PAC_INSN ("retab", 0xd65f0fff, 0xffffffff, branch_reg, OP0 (), {}, 0),
+  PAC_INSN ("eretaa", 0xd69f0bff, 0xffffffff, branch_reg, OP0 (), {}, 0),
+  PAC_INSN ("eretab", 0xd69f0fff, 0xffffffff, branch_reg, OP0 (), {}, 0),
   /* Compare & branch (immediate).  */
   CORE_INSN ("cbz", 0x34000000, 0x7f000000, compbranch, 0, OP2 (Rt, ADDR_PCREL19), QL_R_PCREL, F_SF),
   CORE_INSN ("cbnz", 0x35000000, 0x7f000000, compbranch, 0, OP2 (Rt, ADDR_PCREL19), QL_R_PCREL, F_SF),
@@ -3314,24 +3319,24 @@ struct aarch64_opcode aarch64_opcode_table[] =
   CORE_INSN ("clz",   0x5ac01000, 0x7ffffc00, dp_1src, 0, OP2 (Rd, Rn), QL_I2SAME, F_SF),
   CORE_INSN ("cls",   0x5ac01400, 0x7ffffc00, dp_1src, 0, OP2 (Rd, Rn), QL_I2SAME, F_SF),
   CORE_INSN ("rev32", 0xdac00800, 0xfffffc00, dp_1src, 0, OP2 (Rd, Rn), QL_I2SAMEX, 0),
-  V8_3_INSN ("pacia", 0xdac10000, 0xfffffc00, dp_1src, OP2 (Rd, Rn_SP), QL_I2SAMEX, 0),
-  V8_3_INSN ("pacib", 0xdac10400, 0xfffffc00, dp_1src, OP2 (Rd, Rn_SP), QL_I2SAMEX, 0),
-  V8_3_INSN ("pacda", 0xdac10800, 0xfffffc00, dp_1src, OP2 (Rd, Rn_SP), QL_I2SAMEX, 0),
-  V8_3_INSN ("pacdb", 0xdac10c00, 0xfffffc00, dp_1src, OP2 (Rd, Rn_SP), QL_I2SAMEX, 0),
-  V8_3_INSN ("autia", 0xdac11000, 0xfffffc00, dp_1src, OP2 (Rd, Rn_SP), QL_I2SAMEX, 0),
-  V8_3_INSN ("autib", 0xdac11400, 0xfffffc00, dp_1src, OP2 (Rd, Rn_SP), QL_I2SAMEX, 0),
-  V8_3_INSN ("autda", 0xdac11800, 0xfffffc00, dp_1src, OP2 (Rd, Rn_SP), QL_I2SAMEX, 0),
-  V8_3_INSN ("autdb", 0xdac11c00, 0xfffffc00, dp_1src, OP2 (Rd, Rn_SP), QL_I2SAMEX, 0),
-  V8_3_INSN ("paciza", 0xdac123e0, 0xffffffe0, dp_1src, OP1 (Rd), QL_I1X, 0),
-  V8_3_INSN ("pacizb", 0xdac127e0, 0xffffffe0, dp_1src, OP1 (Rd), QL_I1X, 0),
-  V8_3_INSN ("pacdza", 0xdac12be0, 0xffffffe0, dp_1src, OP1 (Rd), QL_I1X, 0),
-  V8_3_INSN ("pacdzb", 0xdac12fe0, 0xffffffe0, dp_1src, OP1 (Rd), QL_I1X, 0),
-  V8_3_INSN ("autiza", 0xdac133e0, 0xffffffe0, dp_1src, OP1 (Rd), QL_I1X, 0),
-  V8_3_INSN ("autizb", 0xdac137e0, 0xffffffe0, dp_1src, OP1 (Rd), QL_I1X, 0),
-  V8_3_INSN ("autdza", 0xdac13be0, 0xffffffe0, dp_1src, OP1 (Rd), QL_I1X, 0),
-  V8_3_INSN ("autdzb", 0xdac13fe0, 0xffffffe0, dp_1src, OP1 (Rd), QL_I1X, 0),
-  V8_3_INSN ("xpaci", 0xdac143e0, 0xffffffe0, dp_1src, OP1 (Rd), QL_I1X, 0),
-  V8_3_INSN ("xpacd", 0xdac147e0, 0xffffffe0, dp_1src, OP1 (Rd), QL_I1X, 0),
+  PAC_INSN ("pacia", 0xdac10000, 0xfffffc00, dp_1src, OP2 (Rd, Rn_SP), QL_I2SAMEX, 0),
+  PAC_INSN ("pacib", 0xdac10400, 0xfffffc00, dp_1src, OP2 (Rd, Rn_SP), QL_I2SAMEX, 0),
+  PAC_INSN ("pacda", 0xdac10800, 0xfffffc00, dp_1src, OP2 (Rd, Rn_SP), QL_I2SAMEX, 0),
+  PAC_INSN ("pacdb", 0xdac10c00, 0xfffffc00, dp_1src, OP2 (Rd, Rn_SP), QL_I2SAMEX, 0),
+  PAC_INSN ("autia", 0xdac11000, 0xfffffc00, dp_1src, OP2 (Rd, Rn_SP), QL_I2SAMEX, 0),
+  PAC_INSN ("autib", 0xdac11400, 0xfffffc00, dp_1src, OP2 (Rd, Rn_SP), QL_I2SAMEX, 0),
+  PAC_INSN ("autda", 0xdac11800, 0xfffffc00, dp_1src, OP2 (Rd, Rn_SP), QL_I2SAMEX, 0),
+  PAC_INSN ("autdb", 0xdac11c00, 0xfffffc00, dp_1src, OP2 (Rd, Rn_SP), QL_I2SAMEX, 0),
+  PAC_INSN ("paciza", 0xdac123e0, 0xffffffe0, dp_1src, OP1 (Rd), QL_I1X, 0),
+  PAC_INSN ("pacizb", 0xdac127e0, 0xffffffe0, dp_1src, OP1 (Rd), QL_I1X, 0),
+  PAC_INSN ("pacdza", 0xdac12be0, 0xffffffe0, dp_1src, OP1 (Rd), QL_I1X, 0),
+  PAC_INSN ("pacdzb", 0xdac12fe0, 0xffffffe0, dp_1src, OP1 (Rd), QL_I1X, 0),
+  PAC_INSN ("autiza", 0xdac133e0, 0xffffffe0, dp_1src, OP1 (Rd), QL_I1X, 0),
+  PAC_INSN ("autizb", 0xdac137e0, 0xffffffe0, dp_1src, OP1 (Rd), QL_I1X, 0),
+  PAC_INSN ("autdza", 0xdac13be0, 0xffffffe0, dp_1src, OP1 (Rd), QL_I1X, 0),
+  PAC_INSN ("autdzb", 0xdac13fe0, 0xffffffe0, dp_1src, OP1 (Rd), QL_I1X, 0),
+  PAC_INSN ("xpaci", 0xdac143e0, 0xffffffe0, dp_1src, OP1 (Rd), QL_I1X, 0),
+  PAC_INSN ("xpacd", 0xdac147e0, 0xffffffe0, dp_1src, OP1 (Rd), QL_I1X, 0),
   /* Data-processing (2 source).  */
   CORE_INSN ("udiv",  0x1ac00800, 0x7fe0fc00, dp_2src, 0, OP3 (Rd, Rn, Rm), QL_I3SAMER, F_SF),
   CORE_INSN ("sdiv",  0x1ac00c00, 0x7fe0fc00, dp_2src, 0, OP3 (Rd, Rn, Rm), QL_I3SAMER, F_SF),
@@ -3348,7 +3353,7 @@ struct aarch64_opcode aarch64_opcode_table[] =
   MEMTAG_INSN ("cmpp",   0xbac0001f, 0xffe0fc1f, dp_2src, OP2 (Rn_SP, Rm_SP), QL_I2SAMEX, F_ALIAS),
   MEMTAG_INSN ("irg",    0x9ac01000, 0xffe0fc00, dp_2src, OP3 (Rd_SP, Rn_SP, Rm), QL_I3SAMEX, F_OPD2_OPT | F_DEFAULT (0x1f)),
   MEMTAG_INSN ("gmi",    0x9ac01400, 0xffe0fc00, dp_2src, OP3 (Rd, Rn_SP, Rm), QL_I3SAMEX, 0),
-  V8_3_INSN ("pacga", 0x9ac03000, 0xffe0fc00, dp_2src, OP3 (Rd, Rn, Rm_SP), QL_I3SAMEX, 0),
+  PAC_INSN ("pacga", 0x9ac03000, 0xffe0fc00, dp_2src, OP3 (Rd, Rn, Rm_SP), QL_I3SAMEX, 0),
   /* CRC instructions.  */
   _CRC_INSN ("crc32b", 0x1ac04000, 0xffe0fc00, dp_2src, OP3 (Rd, Rn, Rm), QL_I3SAMEW, 0),
   _CRC_INSN ("crc32h", 0x1ac04400, 0xffe0fc00, dp_2src, OP3 (Rd, Rn, Rm), QL_I3SAMEW, 0),
@@ -3578,8 +3583,8 @@ struct aarch64_opcode aarch64_opcode_table[] =
   CORE_INSN ("prfum", 0xf8800000, 0xffe00c00, ldst_unscaled, OP_PRFUM, OP2 (PRFOP, ADDR_SIMM9), QL_LDST_PRFM, 0),
   MEMTAG_INSN ("ldg",  0xd9600000, 0xffe00c00, ldst_unscaled, OP2 (Rt, ADDR_SIMM13), QL_LDG, 0),
   /* Load/store register (scaled signed immediate).  */
-  V8_3_INSN ("ldraa", 0xf8200400, 0xffa00400, ldst_imm10, OP2 (Rt, ADDR_SIMM10), QL_X1NIL, 0),
-  V8_3_INSN ("ldrab", 0xf8a00400, 0xffa00400, ldst_imm10, OP2 (Rt, ADDR_SIMM10), QL_X1NIL, 0),
+  PAC_INSN ("ldraa", 0xf8200400, 0xffa00400, ldst_imm10, OP2 (Rt, ADDR_SIMM10), QL_X1NIL, 0),
+  PAC_INSN ("ldrab", 0xf8a00400, 0xffa00400, ldst_imm10, OP2 (Rt, ADDR_SIMM10), QL_X1NIL, 0),
   /* Load/store exclusive.  */
   CORE_INSN ("stxrb", 0x8007c00, 0xffe08000, ldstexcl, 0, OP3 (Rs, Rt, ADDR_SIMPLE), QL_W2_LDST_EXC, 0),
   CORE_INSN ("stlxrb", 0x800fc00, 0xffe08000, ldstexcl, 0, OP3 (Rs, Rt, ADDR_SIMPLE), QL_W2_LDST_EXC, 0),