All of lore.kernel.org
 help / color / mirror / Atom feed
From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Nick Desaulniers <ndesaulniers@google.com>,
	Jian Cai <jiancai@google.com>,
	Russell King <rmk+kernel@armlinux.org.uk>,
	Sasha Levin <sashal@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	clang-built-linux@googlegroups.com
Subject: [PATCH AUTOSEL 4.4 04/12] ARM: 9087/1: kprobes: test-thumb: fix for LLVM_IAS=1
Date: Sat, 10 Jul 2021 19:52:54 -0400	[thread overview]
Message-ID: <20210710235302.3222809-4-sashal@kernel.org> (raw)
In-Reply-To: <20210710235302.3222809-1-sashal@kernel.org>

From: Nick Desaulniers <ndesaulniers@google.com>

[ Upstream commit 8b95a7d90ce8160ac5cffd5bace6e2eba01a871e ]

There's a few instructions that GAS infers operands but Clang doesn't;
from what I can tell the Arm ARM doesn't say these are optional.

F5.1.257 TBB, TBH T1 Halfword variant
F5.1.238 STREXD T1 variant
F5.1.84 LDREXD T1 variant

Link: https://github.com/ClangBuiltLinux/linux/issues/1309

Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Jian Cai <jiancai@google.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/probes/kprobes/test-thumb.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/arm/probes/kprobes/test-thumb.c b/arch/arm/probes/kprobes/test-thumb.c
index b683b4517458..4254391f3906 100644
--- a/arch/arm/probes/kprobes/test-thumb.c
+++ b/arch/arm/probes/kprobes/test-thumb.c
@@ -444,21 +444,21 @@ void kprobe_thumb32_test_cases(void)
 		"3:	mvn	r0, r0	\n\t"
 		"2:	nop		\n\t")
 
-	TEST_RX("tbh	[pc, r",7, (9f-(1f+4))>>1,"]",
+	TEST_RX("tbh	[pc, r",7, (9f-(1f+4))>>1,", lsl #1]",
 		"9:			\n\t"
 		".short	(2f-1b-4)>>1	\n\t"
 		".short	(3f-1b-4)>>1	\n\t"
 		"3:	mvn	r0, r0	\n\t"
 		"2:	nop		\n\t")
 
-	TEST_RX("tbh	[pc, r",12, ((9f-(1f+4))>>1)+1,"]",
+	TEST_RX("tbh	[pc, r",12, ((9f-(1f+4))>>1)+1,", lsl #1]",
 		"9:			\n\t"
 		".short	(2f-1b-4)>>1	\n\t"
 		".short	(3f-1b-4)>>1	\n\t"
 		"3:	mvn	r0, r0	\n\t"
 		"2:	nop		\n\t")
 
-	TEST_RRX("tbh	[r",1,9f, ", r",14,1,"]",
+	TEST_RRX("tbh	[r",1,9f, ", r",14,1,", lsl #1]",
 		"9:			\n\t"
 		".short	(2f-1b-4)>>1	\n\t"
 		".short	(3f-1b-4)>>1	\n\t"
@@ -471,10 +471,10 @@ void kprobe_thumb32_test_cases(void)
 
 	TEST_UNSUPPORTED("strexb	r0, r1, [r2]")
 	TEST_UNSUPPORTED("strexh	r0, r1, [r2]")
-	TEST_UNSUPPORTED("strexd	r0, r1, [r2]")
+	TEST_UNSUPPORTED("strexd	r0, r1, r2, [r2]")
 	TEST_UNSUPPORTED("ldrexb	r0, [r1]")
 	TEST_UNSUPPORTED("ldrexh	r0, [r1]")
-	TEST_UNSUPPORTED("ldrexd	r0, [r1]")
+	TEST_UNSUPPORTED("ldrexd	r0, r1, [r1]")
 
 	TEST_GROUP("Data-processing (shifted register) and (modified immediate)")
 
-- 
2.30.2


WARNING: multiple messages have this Message-ID (diff)
From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Nick Desaulniers <ndesaulniers@google.com>,
	Jian Cai <jiancai@google.com>,
	Russell King <rmk+kernel@armlinux.org.uk>,
	Sasha Levin <sashal@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	clang-built-linux@googlegroups.com
Subject: [PATCH AUTOSEL 4.4 04/12] ARM: 9087/1: kprobes: test-thumb: fix for LLVM_IAS=1
Date: Sat, 10 Jul 2021 19:52:54 -0400	[thread overview]
Message-ID: <20210710235302.3222809-4-sashal@kernel.org> (raw)
In-Reply-To: <20210710235302.3222809-1-sashal@kernel.org>

From: Nick Desaulniers <ndesaulniers@google.com>

[ Upstream commit 8b95a7d90ce8160ac5cffd5bace6e2eba01a871e ]

There's a few instructions that GAS infers operands but Clang doesn't;
from what I can tell the Arm ARM doesn't say these are optional.

F5.1.257 TBB, TBH T1 Halfword variant
F5.1.238 STREXD T1 variant
F5.1.84 LDREXD T1 variant

Link: https://github.com/ClangBuiltLinux/linux/issues/1309

Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Jian Cai <jiancai@google.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/probes/kprobes/test-thumb.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/arm/probes/kprobes/test-thumb.c b/arch/arm/probes/kprobes/test-thumb.c
index b683b4517458..4254391f3906 100644
--- a/arch/arm/probes/kprobes/test-thumb.c
+++ b/arch/arm/probes/kprobes/test-thumb.c
@@ -444,21 +444,21 @@ void kprobe_thumb32_test_cases(void)
 		"3:	mvn	r0, r0	\n\t"
 		"2:	nop		\n\t")
 
-	TEST_RX("tbh	[pc, r",7, (9f-(1f+4))>>1,"]",
+	TEST_RX("tbh	[pc, r",7, (9f-(1f+4))>>1,", lsl #1]",
 		"9:			\n\t"
 		".short	(2f-1b-4)>>1	\n\t"
 		".short	(3f-1b-4)>>1	\n\t"
 		"3:	mvn	r0, r0	\n\t"
 		"2:	nop		\n\t")
 
-	TEST_RX("tbh	[pc, r",12, ((9f-(1f+4))>>1)+1,"]",
+	TEST_RX("tbh	[pc, r",12, ((9f-(1f+4))>>1)+1,", lsl #1]",
 		"9:			\n\t"
 		".short	(2f-1b-4)>>1	\n\t"
 		".short	(3f-1b-4)>>1	\n\t"
 		"3:	mvn	r0, r0	\n\t"
 		"2:	nop		\n\t")
 
-	TEST_RRX("tbh	[r",1,9f, ", r",14,1,"]",
+	TEST_RRX("tbh	[r",1,9f, ", r",14,1,", lsl #1]",
 		"9:			\n\t"
 		".short	(2f-1b-4)>>1	\n\t"
 		".short	(3f-1b-4)>>1	\n\t"
@@ -471,10 +471,10 @@ void kprobe_thumb32_test_cases(void)
 
 	TEST_UNSUPPORTED("strexb	r0, r1, [r2]")
 	TEST_UNSUPPORTED("strexh	r0, r1, [r2]")
-	TEST_UNSUPPORTED("strexd	r0, r1, [r2]")
+	TEST_UNSUPPORTED("strexd	r0, r1, r2, [r2]")
 	TEST_UNSUPPORTED("ldrexb	r0, [r1]")
 	TEST_UNSUPPORTED("ldrexh	r0, [r1]")
-	TEST_UNSUPPORTED("ldrexd	r0, [r1]")
+	TEST_UNSUPPORTED("ldrexd	r0, r1, [r1]")
 
 	TEST_GROUP("Data-processing (shifted register) and (modified immediate)")
 
-- 
2.30.2


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2021-07-10 23:58 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-10 23:52 [PATCH AUTOSEL 4.4 01/12] pwm: spear: Don't modify HW state in .remove callback Sasha Levin
2021-07-10 23:52 ` [PATCH AUTOSEL 4.4 02/12] power: supply: ab8500: Avoid NULL pointers Sasha Levin
2021-07-10 23:52 ` [PATCH AUTOSEL 4.4 03/12] power: reset: gpio-poweroff: add missing MODULE_DEVICE_TABLE Sasha Levin
2021-07-10 23:52 ` Sasha Levin [this message]
2021-07-10 23:52   ` [PATCH AUTOSEL 4.4 04/12] ARM: 9087/1: kprobes: test-thumb: fix for LLVM_IAS=1 Sasha Levin
2021-07-10 23:52 ` [PATCH AUTOSEL 4.4 05/12] watchdog: Fix possible use-after-free in wdt_startup() Sasha Levin
2021-07-10 23:52 ` [PATCH AUTOSEL 4.4 06/12] watchdog: sc520_wdt: Fix possible use-after-free in wdt_turnoff() Sasha Levin
2021-07-10 23:52 ` [PATCH AUTOSEL 4.4 07/12] watchdog: Fix possible use-after-free by calling del_timer_sync() Sasha Levin
2021-07-10 23:52   ` Sasha Levin
2021-07-10 23:52 ` [PATCH AUTOSEL 4.4 08/12] ceph: remove bogus checks and WARN_ONs from ceph_set_page_dirty Sasha Levin
2021-07-10 23:52 ` [PATCH AUTOSEL 4.4 09/12] power: supply: charger-manager: add missing MODULE_DEVICE_TABLE Sasha Levin
2021-07-10 23:53 ` [PATCH AUTOSEL 4.4 10/12] power: supply: ab8500: " Sasha Levin
2021-07-10 23:53 ` [PATCH AUTOSEL 4.4 11/12] virtio-blk: Fix memory leak among suspend/resume procedure Sasha Levin
2021-07-10 23:53   ` Sasha Levin
2021-07-10 23:53 ` [PATCH AUTOSEL 4.4 12/12] virtio_console: Assure used length from device is limited Sasha Levin
2021-07-10 23:53   ` Sasha Levin

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210710235302.3222809-4-sashal@kernel.org \
    --to=sashal@kernel.org \
    --cc=clang-built-linux@googlegroups.com \
    --cc=jiancai@google.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=ndesaulniers@google.com \
    --cc=rmk+kernel@armlinux.org.uk \
    --cc=stable@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.