From: Andrea Corallo <andrea.corallo@arm.com>
To: Binutils <binutils@sourceware.org>
Cc: "richard.earnshaw@arm.com" <richard.earnshaw@arm.com>
Subject: PATCH [4/10] arm: add 'pac' instruction for Armv8.1-M pacbti extension
Date: Tue, 20 Jul 2021 17:38:52 +0200 [thread overview]
Message-ID: <gkr5yx5ov03.fsf@arm.com> (raw)
Message-ID: <20210720153852.nKBU3HZt7uGa94eS6Ow3nwFJOFdw3KNRL9uM8xOrz4c@z> (raw)
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Hi all,
forth patch of the series adding support for PACBTI for Cortex-M.
This is to add the 'pac' instruction.
See:
- Armv8.1-M Pointer Authentication and Branch Target Identification Extension [1]
- Armv8-M Architecture Reference Manual [2]
The series was tested and does not introduce regressions.
Regards
Andrea
[1] <https://community.arm.com/developer/ip-products/processors/b/processors-ip-blog/posts/armv8-1-m-pointer-authentication-and-branch-target-identification-extension>
[2] <https://developer.arm.com/documentation/ddi0553/latest>
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From e533b632d067cbee9a64e54754f48b10ef7f482a Mon Sep 17 00:00:00 2001
From: Andrea Corallo <andrea.corallo@arm.com>
Date: Wed, 19 May 2021 09:51:40 +0200
Subject: [PATCH 04/10] PATCH [4/10] arm: add 'pac' instruction for Armv8.1-M
pacbti extension
gas/
2021-06-11 Andrea Corallo <andrea.corallo@arm.com>
* config/tc-arm.c (T16_32_TAB): Add '_pac'.
(insns): Add 'pac' insn.
* testsuite/gas/arm/armv8_1-m-pacbti-bad.l: Add pac tests.
* testsuite/gas/arm/armv8_1-m-pacbti-bad.s: Likewise.
* testsuite/gas/arm/armv8_1-m-pacbti.d: Likewise.
* testsuite/gas/arm/armv8_1-m-pacbti.s: Likewise.
opcodes/
2021-06-11 Andrea Corallo <andrea.corallo@arm.com>
* arm-dis.c (thumb32_opcodes): Add 'pac'.
---
gas/config/tc-arm.c | 2 ++
gas/testsuite/gas/arm/armv8_1-m-pacbti-bad.l | 3 +++
gas/testsuite/gas/arm/armv8_1-m-pacbti-bad.s | 3 +++
gas/testsuite/gas/arm/armv8_1-m-pacbti.d | 1 +
gas/testsuite/gas/arm/armv8_1-m-pacbti.s | 1 +
opcodes/arm-dis.c | 2 ++
6 files changed, 12 insertions(+)
diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c
index b5d23357fc0..6ef0cd97a5e 100644
--- a/gas/config/tc-arm.c
+++ b/gas/config/tc-arm.c
@@ -11506,6 +11506,7 @@ encode_thumb32_addr_mode (int i, bool is_t, bool is_d)
X(_negs, 4240, f1d00000), /* rsbs #0 */ \
X(_orr, 4300, ea400000), \
X(_orrs, 4300, ea500000), \
+ X(_pac, 0000, f3af801d), \
X(_pacbti, 0000, f3af800d), \
X(_pop, bc00, e8bd0000), /* ldmia sp!,... */ \
X(_push, b400, e92d0000), /* stmdb sp!,... */ \
@@ -26329,6 +26330,7 @@ static const struct asm_opcode insns[] =
#define THUMB_VARIANT & arm_ext_v8_1m_main
toU("aut", _aut, 3, (R12, LR, SP), t_pacbti),
ToU("bti", f3af800f, 0, (), noargs),
+ toU("pac", _pac, 3, (R12, LR, SP), t_pacbti),
toU("pacbti", _pacbti, 3, (R12, LR, SP), t_pacbti),
toU("cinc", _cinc, 3, (RRnpcsp, RR_ZR, COND), t_cond),
toU("cinv", _cinv, 3, (RRnpcsp, RR_ZR, COND), t_cond),
diff --git a/gas/testsuite/gas/arm/armv8_1-m-pacbti-bad.l b/gas/testsuite/gas/arm/armv8_1-m-pacbti-bad.l
index 317e62f731b..f6f0d41ac71 100644
--- a/gas/testsuite/gas/arm/armv8_1-m-pacbti-bad.l
+++ b/gas/testsuite/gas/arm/armv8_1-m-pacbti-bad.l
@@ -5,3 +5,6 @@
.*:9: Error: operand must be r12 -- `aut r11,lr,sp'
.*:10: Error: operand must be LR register -- `aut r12,r10,sp'
.*:11: Error: operand must be SP register -- `aut r12,lr,r10'
+.*:12: Error: operand must be r12 -- `pac r11,lr,sp'
+.*:13: Error: operand must be LR register -- `pac r12,r10,sp'
+.*:14: Error: operand must be SP register -- `pac r12,lr,r10'
diff --git a/gas/testsuite/gas/arm/armv8_1-m-pacbti-bad.s b/gas/testsuite/gas/arm/armv8_1-m-pacbti-bad.s
index c2ad20455c7..4948f855534 100644
--- a/gas/testsuite/gas/arm/armv8_1-m-pacbti-bad.s
+++ b/gas/testsuite/gas/arm/armv8_1-m-pacbti-bad.s
@@ -9,3 +9,6 @@
aut r11, lr, sp
aut r12, r10, sp
aut r12, lr, r10
+ pac r11, lr, sp
+ pac r12, r10, sp
+ pac r12, lr, r10
diff --git a/gas/testsuite/gas/arm/armv8_1-m-pacbti.d b/gas/testsuite/gas/arm/armv8_1-m-pacbti.d
index fe11d7eb036..9df123af8eb 100644
--- a/gas/testsuite/gas/arm/armv8_1-m-pacbti.d
+++ b/gas/testsuite/gas/arm/armv8_1-m-pacbti.d
@@ -9,4 +9,5 @@ Disassembly of section .text:
0[0-9a-f]+ <[^>]+> f3af 800f bti
0[0-9a-f]+ <[^>]+> f3af 800d pacbti r12, lr, sp
0[0-9a-f]+ <[^>]+> f3af 802d aut r12, lr, sp
+0[0-9a-f]+ <[^>]+> f3af 801d pac r12, lr, sp
#...
diff --git a/gas/testsuite/gas/arm/armv8_1-m-pacbti.s b/gas/testsuite/gas/arm/armv8_1-m-pacbti.s
index 14b0414a59b..38000c3fc0d 100644
--- a/gas/testsuite/gas/arm/armv8_1-m-pacbti.s
+++ b/gas/testsuite/gas/arm/armv8_1-m-pacbti.s
@@ -5,3 +5,4 @@
bti
pacbti r12, lr, sp
aut r12, lr, sp
+ pac r12, lr, sp
diff --git a/opcodes/arm-dis.c b/opcodes/arm-dis.c
index 8eeb303630b..930fbbfa385 100644
--- a/opcodes/arm-dis.c
+++ b/opcodes/arm-dis.c
@@ -4658,6 +4658,8 @@ static const struct opcode32 thumb32_opcodes[] =
0xf3af802d, 0xffffffff, "aut\tr12, lr, sp"},
{ARM_FEATURE_CORE_HIGH (ARM_EXT2_V8_1M_MAIN),
0xf3af800f, 0xffffffff, "bti"},
+ {ARM_FEATURE_CORE_HIGH (ARM_EXT2_V8_1M_MAIN),
+ 0xf3af801d, 0xffffffff, "pac\tr12, lr, sp"},
{ARM_FEATURE_CORE_HIGH (ARM_EXT2_V8_1M_MAIN),
0xf3af800d, 0xffffffff, "pacbti\tr12, lr, sp"},
--
2.20.1
next reply other threads:[~2021-07-20 15:43 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-20 15:38 Andrea Corallo [this message]
2021-07-20 15:38 ` PATCH [3/4] arm: Add Tag_BTI_use build attribute Andrea Corallo
2021-07-20 15:38 ` PATCH [9/10] arm: add 'pacg' instruction for Armv8.1-M pacbti extension Andrea Corallo
2021-07-20 15:38 ` PATCH [5/10] arm: Extend again arm_feature_set struct to provide more bits Andrea Corallo
2021-07-20 15:38 ` PATCH [6/10] arm: Add -march=armv8.1-m.main+pacbti flag Andrea Corallo
2021-07-20 15:38 ` PATCH [10/10] arm: Alias 'ra_auth_code' to r12 for pacbti Andrea Corallo
2021-07-20 15:38 ` PATCH [7/10] arm: add 'bxaut' instruction for Armv8.1-M pacbti extension Andrea Corallo
2021-07-20 15:38 ` PATCH [8/10] arm: add 'autg' " Andrea Corallo
2021-07-20 15:38 ` PATCH V2 [2/10] arm: add 'pacbti' " Andrea Corallo
2021-07-20 15:38 ` PATCH [4/10] arm: add 'pac' " Andrea Corallo
2021-07-20 15:38 ` PATCH [3/10] arm: add 'aut' " Andrea Corallo
2021-07-20 15:38 ` PATCH [2/4] arm: Add Tag_BTI_extension build attribute Andrea Corallo
2021-07-20 15:38 ` PATCH [4/4] arm: Add Tag_PACRET_use " Andrea Corallo
2021-07-21 14:31 ` PATCH [1/10] arm: add 'bti' instruction for Armv8.1-M pacbti extension Nick Clifton
2021-07-21 15:12 ` Andrea Corallo
2021-07-26 12:32 ` Andrea Corallo
2021-08-10 15:31 ` PATCH [2/4] arm: Add Tag_BTI_extension build attribute Nick Clifton
2021-08-17 12:59 ` Andrea Corallo
2021-08-10 15:32 ` PATCH [3/4] arm: Add Tag_BTI_use " Nick Clifton
2021-08-10 15:33 ` PATCH [4/4] arm: Add Tag_PACRET_use " Nick Clifton
2021-08-10 15:33 ` PATCH V2 [2/10] arm: add 'pacbti' instruction for Armv8.1-M pacbti extension Nick Clifton
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