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* [PATCH 0/5] ARM: convert to unified syntax
@ 2019-02-07  9:48 Stefan Agner
  2019-02-07  9:48 ` [PATCH 1/5] ARM: use unified assembler in macros Stefan Agner
                   ` (4 more replies)
  0 siblings, 5 replies; 14+ messages in thread
From: Stefan Agner @ 2019-02-07  9:48 UTC (permalink / raw)
  To: linux
  Cc: nicolas.pitre, mark.rutland, arnd, ard.biesheuvel, will.deacon,
	julien.thierry, ndesaulniers, linux-kernel, Stefan Agner,
	thierry.reding, natechancellor, linux-arm-kernel

This patchset converts all assembly code to unified assembler
language (UAL) compatible assembly code. From what I can tell,
this mainly boils down to using conditional infixes instead of
postfixes.

Most of the conversion has been done using the following regular
expression:
  find ./arch/arm/ -name "*.[hSc]" -exec sed -i -r \
    "s/^((\s*[._a-zA-Z0-9]*[\:\(])?\s*)([a-z]{3})(eq|ne|cs|hs|cc|lo|mi|pl|vs|vc|hi|ls|ge|lt|gt|le|al)([a-z]{1,2})(\s)/\1\3\5\4\6/"
\
    {} \;

The expression resulted in some false positives and missed some
instances where infix conditionals have been used. With this
changes applied, I compiled several kernel configurations
successfully and without a warning.

The file arch/arm/probes/kprobes/test-arm.c is still using some
divided syntax assembler.

This does not allow to use LLVM's integrated assembler just yet,
there is still some assembler which the integrated assembler does
not like (yet). But it is a big step towards that direction.

--
Stefan

Stefan Agner (5):
  ARM: use unified assembler in macros
  ARM: use unified assembler in headers
  ARM: use unified assembler in assembly files
  ARM: use unified assembler in c files
  ARM: warn if divided syntax assembler is used

 arch/arm/Makefile                             |  3 --
 arch/arm/boot/bootp/init.S                    |  2 +-
 arch/arm/boot/compressed/ll_char_wr.S         |  4 +-
 arch/arm/include/asm/assembler.h              |  8 ++--
 .../include/asm/hardware/entry-macro-iomd.S   | 10 ++---
 arch/arm/include/asm/vfpmacros.h              |  8 ++--
 arch/arm/include/debug/tegra.S                |  2 +-
 arch/arm/kernel/debug.S                       |  2 +-
 arch/arm/kernel/entry-armv.S                  | 12 +++---
 arch/arm/kernel/entry-common.S                |  2 +-
 arch/arm/kernel/entry-header.S                |  8 ++--
 arch/arm/lib/bitops.h                         |  8 ++--
 arch/arm/lib/clear_user.S                     |  2 +-
 arch/arm/lib/copy_from_user.S                 |  2 +-
 arch/arm/lib/copy_page.S                      |  4 +-
 arch/arm/lib/copy_template.S                  |  4 +-
 arch/arm/lib/copy_to_user.S                   |  2 +-
 arch/arm/lib/csumpartial.S                    | 20 ++++-----
 arch/arm/lib/csumpartialcopygeneric.S         |  4 +-
 arch/arm/lib/csumpartialcopyuser.S            |  2 +-
 arch/arm/lib/div64.S                          |  4 +-
 arch/arm/lib/floppydma.S                      | 10 ++---
 arch/arm/lib/io-readsb.S                      | 20 ++++-----
 arch/arm/lib/io-readsl.S                      |  2 +-
 arch/arm/lib/io-readsw-armv3.S                |  6 +--
 arch/arm/lib/io-readsw-armv4.S                | 12 +++---
 arch/arm/lib/io-writesb.S                     | 20 ++++-----
 arch/arm/lib/io-writesl.S                     |  2 +-
 arch/arm/lib/io-writesw-armv3.S               |  2 +-
 arch/arm/lib/io-writesw-armv4.S               |  6 +--
 arch/arm/lib/lib1funcs.S                      |  4 +-
 arch/arm/lib/memcpy.S                         |  4 +-
 arch/arm/lib/memmove.S                        | 24 +++++------
 arch/arm/lib/memset.S                         | 42 +++++++++----------
 .../mach-ks8695/include/mach/entry-macro.S    |  2 +-
 arch/arm/mach-tegra/reset-handler.S           |  2 +-
 arch/arm/mm/cache-v6.S                        |  8 ++--
 arch/arm/mm/copypage-v4mc.c                   |  2 +-
 arch/arm/mm/copypage-v4wb.c                   |  2 +-
 arch/arm/mm/copypage-v4wt.c                   |  2 +-
 arch/arm/mm/proc-v7m.S                        |  4 +-
 41 files changed, 143 insertions(+), 146 deletions(-)

-- 
2.20.1


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^ permalink raw reply	[flat|nested] 14+ messages in thread
* [PATCH 1/5] ARM: use unified assembler in macros
  2019-02-07  9:48 [PATCH 0/5] ARM: convert to unified syntax Stefan Agner
@ 2019-02-07  9:48 ` Stefan Agner
  2019-02-07 13:34   ` Ard Biesheuvel
  2019-02-07 15:52   ` Nicolas Pitre
  2019-02-07  9:48 ` [PATCH 2/5] ARM: use unified assembler in headers Stefan Agner
                   ` (3 subsequent siblings)
  4 siblings, 2 replies; 14+ messages in thread
From: Stefan Agner @ 2019-02-07  9:48 UTC (permalink / raw)
  To: linux
  Cc: nicolas.pitre, mark.rutland, arnd, ard.biesheuvel, will.deacon,
	julien.thierry, ndesaulniers, linux-kernel, Stefan Agner,
	thierry.reding, natechancellor, linux-arm-kernel

Use unified assembler syntax (UAL) in macros. Divided syntax is
considered depricated. This will also allow to build the kernel
using LLVM's integrated assembler.

Signed-off-by: Stefan Agner <stefan@agner.ch>
---
 arch/arm/lib/copy_from_user.S | 2 +-
 arch/arm/lib/copy_to_user.S   | 2 +-
 arch/arm/lib/memcpy.S         | 4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/lib/copy_from_user.S b/arch/arm/lib/copy_from_user.S
index 0d4c189c7f4f..712ca399f559 100644
--- a/arch/arm/lib/copy_from_user.S
+++ b/arch/arm/lib/copy_from_user.S
@@ -91,7 +91,7 @@
 	.endm
 
 	.macro str1b ptr reg cond=al abort
-	str\cond\()b \reg, [\ptr], #1
+	strb\cond\() \reg, [\ptr], #1
 	.endm
 
 	.macro enter reg1 reg2
diff --git a/arch/arm/lib/copy_to_user.S b/arch/arm/lib/copy_to_user.S
index 97a6ff4b7e3c..2e402b815e13 100644
--- a/arch/arm/lib/copy_to_user.S
+++ b/arch/arm/lib/copy_to_user.S
@@ -49,7 +49,7 @@
 	.endm
 
 	.macro ldr1b ptr reg cond=al abort
-	ldr\cond\()b \reg, [\ptr], #1
+	ldrb\cond\() \reg, [\ptr], #1
 	.endm
 
 #ifdef CONFIG_CPU_USE_DOMAINS
diff --git a/arch/arm/lib/memcpy.S b/arch/arm/lib/memcpy.S
index 64111bd4440b..1c9e625148ca 100644
--- a/arch/arm/lib/memcpy.S
+++ b/arch/arm/lib/memcpy.S
@@ -30,7 +30,7 @@
 	.endm
 
 	.macro ldr1b ptr reg cond=al abort
-	ldr\cond\()b \reg, [\ptr], #1
+	ldrb\cond\() \reg, [\ptr], #1
 	.endm
 
 	.macro str1w ptr reg abort
@@ -42,7 +42,7 @@
 	.endm
 
 	.macro str1b ptr reg cond=al abort
-	str\cond\()b \reg, [\ptr], #1
+	strb\cond\() \reg, [\ptr], #1
 	.endm
 
 	.macro enter reg1 reg2
-- 
2.20.1


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

^ permalink raw reply related	[flat|nested] 14+ messages in thread
* [PATCH 2/5] ARM: use unified assembler in headers
  2019-02-07  9:48 [PATCH 0/5] ARM: convert to unified syntax Stefan Agner
  2019-02-07  9:48 ` [PATCH 1/5] ARM: use unified assembler in macros Stefan Agner
@ 2019-02-07  9:48 ` Stefan Agner
  2019-02-07 16:10   ` Nicolas Pitre
  2019-02-07  9:48 ` [PATCH 3/5] ARM: use unified assembler in assembly files Stefan Agner
                   ` (2 subsequent siblings)
  4 siblings, 1 reply; 14+ messages in thread
From: Stefan Agner @ 2019-02-07  9:48 UTC (permalink / raw)
  To: linux
  Cc: nicolas.pitre, mark.rutland, arnd, ard.biesheuvel, will.deacon,
	julien.thierry, ndesaulniers, linux-kernel, Stefan Agner,
	thierry.reding, natechancellor, linux-arm-kernel

Use unified assembler syntax (UAL) in headers. Divided syntax is
considered depricated. This will also allow to build the kernel
using LLVM's integrated assembler.

Signed-off-by: Stefan Agner <stefan@agner.ch>
---
 arch/arm/include/asm/assembler.h | 8 ++++----
 arch/arm/include/asm/vfpmacros.h | 8 ++++----
 arch/arm/lib/bitops.h            | 8 ++++----
 3 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
index 28a48e0d4cca..60465b55683c 100644
--- a/arch/arm/include/asm/assembler.h
+++ b/arch/arm/include/asm/assembler.h
@@ -376,7 +376,7 @@ THUMB(	orr	\reg , \reg , #PSR_T_BIT	)
 	.macro	usraccoff, instr, reg, ptr, inc, off, cond, abort, t=TUSER()
 9999:
 	.if	\inc == 1
-	\instr\cond\()b\()\t\().w \reg, [\ptr, #\off]
+	\instr\()b\cond\()\t\().w \reg, [\ptr, #\off]
 	.elseif	\inc == 4
 	\instr\cond\()\t\().w \reg, [\ptr, #\off]
 	.else
@@ -417,7 +417,7 @@ THUMB(	orr	\reg , \reg , #PSR_T_BIT	)
 	.rept	\rept
 9999:
 	.if	\inc == 1
-	\instr\cond\()b\()\t \reg, [\ptr], #\inc
+	\instr\()b\cond\()\t \reg, [\ptr], #\inc
 	.elseif	\inc == 4
 	\instr\cond\()\t \reg, [\ptr], #\inc
 	.else
@@ -460,7 +460,7 @@ THUMB(	orr	\reg , \reg , #PSR_T_BIT	)
 	.macro check_uaccess, addr:req, size:req, limit:req, tmp:req, bad:req
 #ifndef CONFIG_CPU_USE_DOMAINS
 	adds	\tmp, \addr, #\size - 1
-	sbcccs	\tmp, \tmp, \limit
+	sbcscc	\tmp, \tmp, \limit
 	bcs	\bad
 #ifdef CONFIG_CPU_SPECTRE
 	movcs	\addr, #0
@@ -474,7 +474,7 @@ THUMB(	orr	\reg , \reg , #PSR_T_BIT	)
 	sub	\tmp, \limit, #1
 	subs	\tmp, \tmp, \addr	@ tmp = limit - 1 - addr
 	addhs	\tmp, \tmp, #1		@ if (tmp >= 0) {
-	subhss	\tmp, \tmp, \size	@ tmp = limit - (addr + size) }
+	subshs	\tmp, \tmp, \size	@ tmp = limit - (addr + size) }
 	movlo	\addr, #0		@ if (tmp < 0) addr = NULL
 	csdb
 #endif
diff --git a/arch/arm/include/asm/vfpmacros.h b/arch/arm/include/asm/vfpmacros.h
index ef5dfedacd8d..628c336e8e3b 100644
--- a/arch/arm/include/asm/vfpmacros.h
+++ b/arch/arm/include/asm/vfpmacros.h
@@ -29,13 +29,13 @@
 	ldr	\tmp, =elf_hwcap		    @ may not have MVFR regs
 	ldr	\tmp, [\tmp, #0]
 	tst	\tmp, #HWCAP_VFPD32
-	ldcnel	p11, cr0, [\base],#32*4		    @ FLDMIAD \base!, {d16-d31}
+	ldclne	p11, cr0, [\base],#32*4		    @ FLDMIAD \base!, {d16-d31}
 	addeq	\base, \base, #32*4		    @ step over unused register space
 #else
 	VFPFMRX	\tmp, MVFR0			    @ Media and VFP Feature Register 0
 	and	\tmp, \tmp, #MVFR0_A_SIMD_MASK	    @ A_SIMD field
 	cmp	\tmp, #2			    @ 32 x 64bit registers?
-	ldceql	p11, cr0, [\base],#32*4		    @ FLDMIAD \base!, {d16-d31}
+	ldcleq	p11, cr0, [\base],#32*4		    @ FLDMIAD \base!, {d16-d31}
 	addne	\base, \base, #32*4		    @ step over unused register space
 #endif
 #endif
@@ -53,13 +53,13 @@
 	ldr	\tmp, =elf_hwcap		    @ may not have MVFR regs
 	ldr	\tmp, [\tmp, #0]
 	tst	\tmp, #HWCAP_VFPD32
-	stcnel	p11, cr0, [\base],#32*4		    @ FSTMIAD \base!, {d16-d31}
+	stclne	p11, cr0, [\base],#32*4		    @ FSTMIAD \base!, {d16-d31}
 	addeq	\base, \base, #32*4		    @ step over unused register space
 #else
 	VFPFMRX	\tmp, MVFR0			    @ Media and VFP Feature Register 0
 	and	\tmp, \tmp, #MVFR0_A_SIMD_MASK	    @ A_SIMD field
 	cmp	\tmp, #2			    @ 32 x 64bit registers?
-	stceql	p11, cr0, [\base],#32*4		    @ FSTMIAD \base!, {d16-d31}
+	stcleq	p11, cr0, [\base],#32*4		    @ FSTMIAD \base!, {d16-d31}
 	addne	\base, \base, #32*4		    @ step over unused register space
 #endif
 #endif
diff --git a/arch/arm/lib/bitops.h b/arch/arm/lib/bitops.h
index 93cddab73072..95bd35991288 100644
--- a/arch/arm/lib/bitops.h
+++ b/arch/arm/lib/bitops.h
@@ -7,7 +7,7 @@
 ENTRY(	\name		)
 UNWIND(	.fnstart	)
 	ands	ip, r1, #3
-	strneb	r1, [ip]		@ assert word-aligned
+	strbne	r1, [ip]		@ assert word-aligned
 	mov	r2, #1
 	and	r3, r0, #31		@ Get bit offset
 	mov	r0, r0, lsr #5
@@ -32,7 +32,7 @@ ENDPROC(\name		)
 ENTRY(	\name		)
 UNWIND(	.fnstart	)
 	ands	ip, r1, #3
-	strneb	r1, [ip]		@ assert word-aligned
+	strbne	r1, [ip]		@ assert word-aligned
 	mov	r2, #1
 	and	r3, r0, #31		@ Get bit offset
 	mov	r0, r0, lsr #5
@@ -62,7 +62,7 @@ ENDPROC(\name		)
 ENTRY(	\name		)
 UNWIND(	.fnstart	)
 	ands	ip, r1, #3
-	strneb	r1, [ip]		@ assert word-aligned
+	strbne	r1, [ip]		@ assert word-aligned
 	and	r2, r0, #31
 	mov	r0, r0, lsr #5
 	mov	r3, #1
@@ -89,7 +89,7 @@ ENDPROC(\name		)
 ENTRY(	\name		)
 UNWIND(	.fnstart	)
 	ands	ip, r1, #3
-	strneb	r1, [ip]		@ assert word-aligned
+	strbne	r1, [ip]		@ assert word-aligned
 	and	r3, r0, #31
 	mov	r0, r0, lsr #5
 	save_and_disable_irqs ip
-- 
2.20.1


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

^ permalink raw reply related	[flat|nested] 14+ messages in thread
* [PATCH 3/5] ARM: use unified assembler in assembly files
  2019-02-07  9:48 [PATCH 0/5] ARM: convert to unified syntax Stefan Agner
  2019-02-07  9:48 ` [PATCH 1/5] ARM: use unified assembler in macros Stefan Agner
  2019-02-07  9:48 ` [PATCH 2/5] ARM: use unified assembler in headers Stefan Agner
@ 2019-02-07  9:48 ` Stefan Agner
  2019-02-07  9:48 ` [PATCH 4/5] ARM: use unified assembler in c files Stefan Agner
  2019-02-07  9:48 ` [PATCH 5/5] ARM: warn if divided syntax assembler is used Stefan Agner
  4 siblings, 0 replies; 14+ messages in thread
From: Stefan Agner @ 2019-02-07  9:48 UTC (permalink / raw)
  To: linux
  Cc: nicolas.pitre, mark.rutland, arnd, ard.biesheuvel, will.deacon,
	julien.thierry, ndesaulniers, linux-kernel, Stefan Agner,
	thierry.reding, natechancellor, linux-arm-kernel

Use unified assembler syntax (UAL) in assembly files. Divided
syntax is considered depricated. This will also allow to build
the kernel using LLVM's integrated assembler.

Signed-off-by: Stefan Agner <stefan@agner.ch>
---
 arch/arm/boot/bootp/init.S                    |  2 +-
 arch/arm/boot/compressed/ll_char_wr.S         |  4 +-
 .../include/asm/hardware/entry-macro-iomd.S   | 10 ++---
 arch/arm/include/debug/tegra.S                |  2 +-
 arch/arm/kernel/debug.S                       |  2 +-
 arch/arm/kernel/entry-armv.S                  | 12 +++---
 arch/arm/kernel/entry-common.S                |  2 +-
 arch/arm/kernel/entry-header.S                |  8 ++--
 arch/arm/lib/clear_user.S                     |  2 +-
 arch/arm/lib/copy_page.S                      |  4 +-
 arch/arm/lib/copy_template.S                  |  4 +-
 arch/arm/lib/csumpartial.S                    | 20 ++++-----
 arch/arm/lib/csumpartialcopygeneric.S         |  4 +-
 arch/arm/lib/csumpartialcopyuser.S            |  2 +-
 arch/arm/lib/div64.S                          |  4 +-
 arch/arm/lib/floppydma.S                      | 10 ++---
 arch/arm/lib/io-readsb.S                      | 20 ++++-----
 arch/arm/lib/io-readsl.S                      |  2 +-
 arch/arm/lib/io-readsw-armv3.S                |  6 +--
 arch/arm/lib/io-readsw-armv4.S                | 12 +++---
 arch/arm/lib/io-writesb.S                     | 20 ++++-----
 arch/arm/lib/io-writesl.S                     |  2 +-
 arch/arm/lib/io-writesw-armv3.S               |  2 +-
 arch/arm/lib/io-writesw-armv4.S               |  6 +--
 arch/arm/lib/lib1funcs.S                      |  4 +-
 arch/arm/lib/memmove.S                        | 24 +++++------
 arch/arm/lib/memset.S                         | 42 +++++++++----------
 .../mach-ks8695/include/mach/entry-macro.S    |  2 +-
 arch/arm/mach-tegra/reset-handler.S           |  2 +-
 arch/arm/mm/cache-v6.S                        |  8 ++--
 arch/arm/mm/proc-v7m.S                        |  4 +-
 31 files changed, 124 insertions(+), 124 deletions(-)

diff --git a/arch/arm/boot/bootp/init.S b/arch/arm/boot/bootp/init.S
index 78b508075161..142927e5f485 100644
--- a/arch/arm/boot/bootp/init.S
+++ b/arch/arm/boot/bootp/init.S
@@ -44,7 +44,7 @@ _start:		add	lr, pc, #-0x8		@ lr = current load addr
  */
 		movne	r10, #0			@ terminator
 		movne	r4, #2			@ Size of this entry (2 words)
-		stmneia	r9, {r4, r5, r10}	@ Size, ATAG_CORE, terminator
+		stmiane	r9, {r4, r5, r10}	@ Size, ATAG_CORE, terminator
 
 /*
  * find the end of the tag list, and then add an INITRD tag on the end.
diff --git a/arch/arm/boot/compressed/ll_char_wr.S b/arch/arm/boot/compressed/ll_char_wr.S
index 8517c8606b4a..b1dcdb9f4030 100644
--- a/arch/arm/boot/compressed/ll_char_wr.S
+++ b/arch/arm/boot/compressed/ll_char_wr.S
@@ -75,7 +75,7 @@ Lrow4bpplp:
 	tst	r1, #7				@ avoid using r7 directly after
 	str	r7, [r0, -r5]!
 	subne	r1, r1, #1
-	ldrneb	r7, [r6, r1]
+	ldrbne	r7, [r6, r1]
 	bne	Lrow4bpplp
 	ldmfd	sp!, {r4 - r7, pc}
 
@@ -103,7 +103,7 @@ Lrow8bpplp:
 	sub	r0, r0, r5			@ avoid ip
 	stmia	r0, {r4, ip}
 	subne	r1, r1, #1
-	ldrneb	r7, [r6, r1]
+	ldrbne	r7, [r6, r1]
 	bne	Lrow8bpplp
 	ldmfd	sp!, {r4 - r7, pc}
 
diff --git a/arch/arm/include/asm/hardware/entry-macro-iomd.S b/arch/arm/include/asm/hardware/entry-macro-iomd.S
index 8c215acd9b57..f7692731e514 100644
--- a/arch/arm/include/asm/hardware/entry-macro-iomd.S
+++ b/arch/arm/include/asm/hardware/entry-macro-iomd.S
@@ -16,25 +16,25 @@
 		ldr	\tmp, =irq_prio_h
 		teq	\irqstat, #0
 #ifdef IOMD_BASE
-		ldreqb	\irqstat, [\base, #IOMD_DMAREQ]	@ get dma
+		ldrbeq	\irqstat, [\base, #IOMD_DMAREQ]	@ get dma
 		addeq	\tmp, \tmp, #256		@ irq_prio_h table size
 		teqeq	\irqstat, #0
 		bne	2406f
 #endif
-		ldreqb	\irqstat, [\base, #IOMD_IRQREQA]	@ get low priority
+		ldrbeq	\irqstat, [\base, #IOMD_IRQREQA]	@ get low priority
 		addeq	\tmp, \tmp, #256		@ irq_prio_d table size
 		teqeq	\irqstat, #0
 #ifdef IOMD_IRQREQC
-		ldreqb	\irqstat, [\base, #IOMD_IRQREQC]
+		ldrbeq	\irqstat, [\base, #IOMD_IRQREQC]
 		addeq	\tmp, \tmp, #256		@ irq_prio_l table size
 		teqeq	\irqstat, #0
 #endif
 #ifdef IOMD_IRQREQD
-		ldreqb	\irqstat, [\base, #IOMD_IRQREQD]
+		ldrbeq	\irqstat, [\base, #IOMD_IRQREQD]
 		addeq	\tmp, \tmp, #256		@ irq_prio_lc table size
 		teqeq	\irqstat, #0
 #endif
-2406:		ldrneb	\irqnr, [\tmp, \irqstat]	@ get IRQ number
+2406:		ldrbne	\irqnr, [\tmp, \irqstat]	@ get IRQ number
 		.endm
 
 /*
diff --git a/arch/arm/include/debug/tegra.S b/arch/arm/include/debug/tegra.S
index 3bc80599c022..4a5a645c76e2 100644
--- a/arch/arm/include/debug/tegra.S
+++ b/arch/arm/include/debug/tegra.S
@@ -173,7 +173,7 @@
 
 		.macro	senduart, rd, rx
 		cmp	\rx, #0
-		strneb	\rd, [\rx, #UART_TX << UART_SHIFT]
+		strbne	\rd, [\rx, #UART_TX << UART_SHIFT]
 1001:
 		.endm
 
diff --git a/arch/arm/kernel/debug.S b/arch/arm/kernel/debug.S
index b795dc2408c0..b9f94e03d916 100644
--- a/arch/arm/kernel/debug.S
+++ b/arch/arm/kernel/debug.S
@@ -86,7 +86,7 @@ hexbuf_rel:	.long	hexbuf_addr - .
 ENTRY(printascii)
 		addruart_current r3, r1, r2
 1:		teq	r0, #0
-		ldrneb	r1, [r0], #1
+		ldrbne	r1, [r0], #1
 		teqne	r1, #0
 		reteq	lr
 2:		teq     r1, #'\n'
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index e85a3af9ddeb..ce4aea57130a 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -636,7 +636,7 @@ call_fpe:
 	@ Test if we need to give access to iWMMXt coprocessors
 	ldr	r5, [r10, #TI_FLAGS]
 	rsbs	r7, r8, #(1 << 8)		@ CP 0 or 1 only
-	movcss	r7, r5, lsr #(TIF_USING_IWMMXT + 1)
+	movscs	r7, r5, lsr #(TIF_USING_IWMMXT + 1)
 	bcs	iwmmxt_task_enable
 #endif
  ARM(	add	pc, pc, r8, lsr #6	)
@@ -872,7 +872,7 @@ __kuser_cmpxchg64:				@ 0xffff0f60
 	smp_dmb	arm
 1:	ldrexd	r0, r1, [r2]			@ load current val
 	eors	r3, r0, r4			@ compare with oldval (1)
-	eoreqs	r3, r1, r5			@ compare with oldval (2)
+	eorseq	r3, r1, r5			@ compare with oldval (2)
 	strexdeq r3, r6, r7, [r2]		@ store newval if eq
 	teqeq	r3, #1				@ success?
 	beq	1b				@ if no then retry
@@ -896,8 +896,8 @@ __kuser_cmpxchg64:				@ 0xffff0f60
 	ldmia	r1, {r6, lr}			@ load new val
 1:	ldmia	r2, {r0, r1}			@ load current val
 	eors	r3, r0, r4			@ compare with oldval (1)
-	eoreqs	r3, r1, r5			@ compare with oldval (2)
-2:	stmeqia	r2, {r6, lr}			@ store newval if eq
+	eorseq	r3, r1, r5			@ compare with oldval (2)
+2:	stmiaeq	r2, {r6, lr}			@ store newval if eq
 	rsbs	r0, r3, #0			@ set return val and C flag
 	ldmfd	sp!, {r4, r5, r6, pc}
 
@@ -911,7 +911,7 @@ kuser_cmpxchg64_fixup:
 	mov	r7, #0xffff0fff
 	sub	r7, r7, #(0xffff0fff - (0xffff0f60 + (1b - __kuser_cmpxchg64)))
 	subs	r8, r4, r7
-	rsbcss	r8, r8, #(2b - 1b)
+	rsbscs	r8, r8, #(2b - 1b)
 	strcs	r7, [sp, #S_PC]
 #if __LINUX_ARM_ARCH__ < 6
 	bcc	kuser_cmpxchg32_fixup
@@ -969,7 +969,7 @@ kuser_cmpxchg32_fixup:
 	mov	r7, #0xffff0fff
 	sub	r7, r7, #(0xffff0fff - (0xffff0fc0 + (1b - __kuser_cmpxchg)))
 	subs	r8, r4, r7
-	rsbcss	r8, r8, #(2b - 1b)
+	rsbscs	r8, r8, #(2b - 1b)
 	strcs	r7, [sp, #S_PC]
 	ret	lr
 	.previous
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 0465d65d23de..f7649adef505 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -373,7 +373,7 @@ sys_syscall:
 		movhs	scno, #0
 		csdb
 #endif
-		stmloia	sp, {r5, r6}		@ shuffle args
+		stmialo	sp, {r5, r6}		@ shuffle args
 		movlo	r0, r1
 		movlo	r1, r2
 		movlo	r2, r3
diff --git a/arch/arm/kernel/entry-header.S b/arch/arm/kernel/entry-header.S
index 773424843d6e..9b718e63d912 100644
--- a/arch/arm/kernel/entry-header.S
+++ b/arch/arm/kernel/entry-header.S
@@ -387,8 +387,8 @@
 	badr	lr, \ret			@ return address
 	.if	\reload
 	add	r1, sp, #S_R0 + S_OFF		@ pointer to regs
-	ldmccia	r1, {r0 - r6}			@ reload r0-r6
-	stmccia	sp, {r4, r5}			@ update stack arguments
+	ldmiacc	r1, {r0 - r6}			@ reload r0-r6
+	stmiacc	sp, {r4, r5}			@ update stack arguments
 	.endif
 	ldrcc	pc, [\table, \tmp, lsl #2]	@ call sys_* routine
 #else
@@ -396,8 +396,8 @@
 	badr	lr, \ret			@ return address
 	.if	\reload
 	add	r1, sp, #S_R0 + S_OFF		@ pointer to regs
-	ldmccia	r1, {r0 - r6}			@ reload r0-r6
-	stmccia	sp, {r4, r5}			@ update stack arguments
+	ldmiacc	r1, {r0 - r6}			@ reload r0-r6
+	stmiacc	sp, {r4, r5}			@ update stack arguments
 	.endif
 	ldrcc	pc, [\table, \nr, lsl #2]	@ call sys_* routine
 #endif
diff --git a/arch/arm/lib/clear_user.S b/arch/arm/lib/clear_user.S
index e936352ccb00..55946e3fa2ba 100644
--- a/arch/arm/lib/clear_user.S
+++ b/arch/arm/lib/clear_user.S
@@ -44,7 +44,7 @@ UNWIND(.save {r1, lr})
 		strusr	r2, r0, 1, ne, rept=2
 		tst	r1, #1			@ x1 x0 x1 x0 x1 x0 x1
 		it	ne			@ explicit IT needed for the label
-USER(		strnebt	r2, [r0])
+USER(		strbtne	r2, [r0])
 		mov	r0, #0
 		ldmfd	sp!, {r1, pc}
 UNWIND(.fnend)
diff --git a/arch/arm/lib/copy_page.S b/arch/arm/lib/copy_page.S
index 6ee2f6706f86..b84ce1792043 100644
--- a/arch/arm/lib/copy_page.S
+++ b/arch/arm/lib/copy_page.S
@@ -39,9 +39,9 @@ ENTRY(copy_page)
 	.endr
 		subs	r2, r2, #1			@	1
 		stmia	r0!, {r3, r4, ip, lr}		@	4
-		ldmgtia	r1!, {r3, r4, ip, lr}		@	4
+		ldmiagt	r1!, {r3, r4, ip, lr}		@	4
 		bgt	1b				@	1
-	PLD(	ldmeqia r1!, {r3, r4, ip, lr}	)
+	PLD(	ldmiaeq r1!, {r3, r4, ip, lr}	)
 	PLD(	beq	2b			)
 		ldmfd	sp!, {r4, pc}			@	3
 ENDPROC(copy_page)
diff --git a/arch/arm/lib/copy_template.S b/arch/arm/lib/copy_template.S
index 2d54491b0e22..a11f2c25e03a 100644
--- a/arch/arm/lib/copy_template.S
+++ b/arch/arm/lib/copy_template.S
@@ -99,7 +99,7 @@
 
 	CALGN(	ands	ip, r0, #31		)
 	CALGN(	rsb	r3, ip, #32		)
-	CALGN(	sbcnes	r4, r3, r2		)  @ C is always set here
+	CALGN(	sbcsne	r4, r3, r2		)  @ C is always set here
 	CALGN(	bcs	2f			)
 	CALGN(	adr	r4, 6f			)
 	CALGN(	subs	r2, r2, r3		)  @ C gets set
@@ -204,7 +204,7 @@
 
 	CALGN(	ands	ip, r0, #31		)
 	CALGN(	rsb	ip, ip, #32		)
-	CALGN(	sbcnes	r4, ip, r2		)  @ C is always set here
+	CALGN(	sbcsne	r4, ip, r2		)  @ C is always set here
 	CALGN(	subcc	r2, r2, ip		)
 	CALGN(	bcc	15f			)
 
diff --git a/arch/arm/lib/csumpartial.S b/arch/arm/lib/csumpartial.S
index 984e0f29d548..bd84e2db353b 100644
--- a/arch/arm/lib/csumpartial.S
+++ b/arch/arm/lib/csumpartial.S
@@ -40,9 +40,9 @@ td3	.req	lr
 		/* we must have at least one byte. */
 		tst	buf, #1			@ odd address?
 		movne	sum, sum, ror #8
-		ldrneb	td0, [buf], #1
+		ldrbne	td0, [buf], #1
 		subne	len, len, #1
-		adcnes	sum, sum, td0, put_byte_1
+		adcsne	sum, sum, td0, put_byte_1
 
 .Lless4:		tst	len, #6
 		beq	.Lless8_byte
@@ -68,8 +68,8 @@ td3	.req	lr
 		bne	.Lless8_wordlp
 
 .Lless8_byte:	tst	len, #1			@ odd number of bytes
-		ldrneb	td0, [buf], #1		@ include last byte
-		adcnes	sum, sum, td0, put_byte_0	@ update checksum
+		ldrbne	td0, [buf], #1		@ include last byte
+		adcsne	sum, sum, td0, put_byte_0	@ update checksum
 
 .Ldone:		adc	r0, sum, #0		@ collect up the last carry
 		ldr	td0, [sp], #4
@@ -78,17 +78,17 @@ td3	.req	lr
 		ldr	pc, [sp], #4		@ return
 
 .Lnot_aligned:	tst	buf, #1			@ odd address
-		ldrneb	td0, [buf], #1		@ make even
+		ldrbne	td0, [buf], #1		@ make even
 		subne	len, len, #1
-		adcnes	sum, sum, td0, put_byte_1	@ update checksum
+		adcsne	sum, sum, td0, put_byte_1	@ update checksum
 
 		tst	buf, #2			@ 32-bit aligned?
 #if __LINUX_ARM_ARCH__ >= 4
-		ldrneh	td0, [buf], #2		@ make 32-bit aligned
+		ldrhne	td0, [buf], #2		@ make 32-bit aligned
 		subne	len, len, #2
 #else
-		ldrneb	td0, [buf], #1
-		ldrneb	ip, [buf], #1
+		ldrbne	td0, [buf], #1
+		ldrbne	ip, [buf], #1
 		subne	len, len, #2
 #ifndef __ARMEB__
 		orrne	td0, td0, ip, lsl #8
@@ -96,7 +96,7 @@ td3	.req	lr
 		orrne	td0, ip, td0, lsl #8
 #endif
 #endif
-		adcnes	sum, sum, td0		@ update checksum
+		adcsne	sum, sum, td0		@ update checksum
 		ret	lr
 
 ENTRY(csum_partial)
diff --git a/arch/arm/lib/csumpartialcopygeneric.S b/arch/arm/lib/csumpartialcopygeneric.S
index 10b45909610c..08e17758cbea 100644
--- a/arch/arm/lib/csumpartialcopygeneric.S
+++ b/arch/arm/lib/csumpartialcopygeneric.S
@@ -148,9 +148,9 @@ FN_ENTRY
 		strb	r5, [dst], #1
 		mov	r5, r4, get_byte_2
 .Lexit:		tst	len, #1
-		strneb	r5, [dst], #1
+		strbne	r5, [dst], #1
 		andne	r5, r5, #255
-		adcnes	sum, sum, r5, put_byte_0
+		adcsne	sum, sum, r5, put_byte_0
 
 		/*
 		 * If the dst pointer was not 16-bit aligned, we
diff --git a/arch/arm/lib/csumpartialcopyuser.S b/arch/arm/lib/csumpartialcopyuser.S
index b83fdc06286a..f4716d98e0b4 100644
--- a/arch/arm/lib/csumpartialcopyuser.S
+++ b/arch/arm/lib/csumpartialcopyuser.S
@@ -95,7 +95,7 @@
 		add	r2, r2, r1
 		mov	r0, #0			@ zero the buffer
 9002:		teq	r2, r1
-		strneb	r0, [r1], #1
+		strbne	r0, [r1], #1
 		bne	9002b
 		load_regs
 		.popsection
diff --git a/arch/arm/lib/div64.S b/arch/arm/lib/div64.S
index a9eafe4981eb..4d80f690c48b 100644
--- a/arch/arm/lib/div64.S
+++ b/arch/arm/lib/div64.S
@@ -88,8 +88,8 @@ UNWIND(.fnstart)
  	@ Break out early if dividend reaches 0.
 2:	cmp	xh, yl
 	orrcs	yh, yh, ip
-	subcss	xh, xh, yl
-	movnes	ip, ip, lsr #1
+	subscs	xh, xh, yl
+	movsne	ip, ip, lsr #1
 	mov	yl, yl, lsr #1
 	bne	2b
 
diff --git a/arch/arm/lib/floppydma.S b/arch/arm/lib/floppydma.S
index 617150b1baef..de68d3b343e3 100644
--- a/arch/arm/lib/floppydma.S
+++ b/arch/arm/lib/floppydma.S
@@ -14,8 +14,8 @@
 		.global	floppy_fiqin_end
 ENTRY(floppy_fiqin_start)
 		subs	r9, r9, #1
-		ldrgtb	r12, [r11, #-4]
-		ldrleb	r12, [r11], #0
+		ldrbgt	r12, [r11, #-4]
+		ldrble	r12, [r11], #0
 		strb	r12, [r10], #1
 		subs	pc, lr, #4
 floppy_fiqin_end:
@@ -23,10 +23,10 @@ floppy_fiqin_end:
 		.global	floppy_fiqout_end
 ENTRY(floppy_fiqout_start)
 		subs	r9, r9, #1
-		ldrgeb	r12, [r10], #1
+		ldrbge	r12, [r10], #1
 		movlt	r12, #0
-		strleb	r12, [r11], #0
-		subles	pc, lr, #4
+		strble	r12, [r11], #0
+		subsle	pc, lr, #4
 		strb	r12, [r11, #-4]
 		subs	pc, lr, #4
 floppy_fiqout_end:
diff --git a/arch/arm/lib/io-readsb.S b/arch/arm/lib/io-readsb.S
index c31b2f3153f1..91038a0a77b5 100644
--- a/arch/arm/lib/io-readsb.S
+++ b/arch/arm/lib/io-readsb.S
@@ -16,10 +16,10 @@
 		cmp	ip, #2
 		ldrb	r3, [r0]
 		strb	r3, [r1], #1
-		ldrgeb	r3, [r0]
-		strgeb	r3, [r1], #1
-		ldrgtb	r3, [r0]
-		strgtb	r3, [r1], #1
+		ldrbge	r3, [r0]
+		strbge	r3, [r1], #1
+		ldrbgt	r3, [r0]
+		strbgt	r3, [r1], #1
 		subs	r2, r2, ip
 		bne	.Linsb_aligned
 
@@ -72,7 +72,7 @@ ENTRY(__raw_readsb)
 		bpl	.Linsb_16_lp
 
 		tst	r2, #15
-		ldmeqfd	sp!, {r4 - r6, pc}
+		ldmfdeq	sp!, {r4 - r6, pc}
 
 .Linsb_no_16:	tst	r2, #8
 		beq	.Linsb_no_8
@@ -109,15 +109,15 @@ ENTRY(__raw_readsb)
 		str	r3, [r1], #4
 
 .Linsb_no_4:	ands	r2, r2, #3
-		ldmeqfd	sp!, {r4 - r6, pc}
+		ldmfdeq	sp!, {r4 - r6, pc}
 
 		cmp	r2, #2
 		ldrb	r3, [r0]
 		strb	r3, [r1], #1
-		ldrgeb	r3, [r0]
-		strgeb	r3, [r1], #1
-		ldrgtb	r3, [r0]
-		strgtb	r3, [r1]
+		ldrbge	r3, [r0]
+		strbge	r3, [r1], #1
+		ldrbgt	r3, [r0]
+		strbgt	r3, [r1]
 
 		ldmfd	sp!, {r4 - r6, pc}
 ENDPROC(__raw_readsb)
diff --git a/arch/arm/lib/io-readsl.S b/arch/arm/lib/io-readsl.S
index 2ed86fa5465f..f2e2064318d2 100644
--- a/arch/arm/lib/io-readsl.S
+++ b/arch/arm/lib/io-readsl.S
@@ -30,7 +30,7 @@ ENTRY(__raw_readsl)
 2:		movs	r2, r2, lsl #31
 		ldrcs	r3, [r0, #0]
 		ldrcs	ip, [r0, #0]
-		stmcsia	r1!, {r3, ip}
+		stmiacs	r1!, {r3, ip}
 		ldrne	r3, [r0, #0]
 		strne	r3, [r1, #0]
 		ret	lr
diff --git a/arch/arm/lib/io-readsw-armv3.S b/arch/arm/lib/io-readsw-armv3.S
index 413da9914529..8b25b69c516e 100644
--- a/arch/arm/lib/io-readsw-armv3.S
+++ b/arch/arm/lib/io-readsw-armv3.S
@@ -68,7 +68,7 @@ ENTRY(__raw_readsw)
 		bpl	.Linsw_8_lp
 
 		tst	r2, #7
-		ldmeqfd	sp!, {r4, r5, r6, pc}
+		ldmfdeq	sp!, {r4, r5, r6, pc}
 
 .Lno_insw_8:	tst	r2, #4
 		beq	.Lno_insw_4
@@ -97,9 +97,9 @@ ENTRY(__raw_readsw)
 
 .Lno_insw_2:	tst	r2, #1
 		ldrne	r3, [r0]
-		strneb	r3, [r1], #1
+		strbne	r3, [r1], #1
 		movne	r3, r3, lsr #8
-		strneb	r3, [r1]
+		strbne	r3, [r1]
 
 		ldmfd	sp!, {r4, r5, r6, pc}
 
diff --git a/arch/arm/lib/io-readsw-armv4.S b/arch/arm/lib/io-readsw-armv4.S
index d9a45e9692ae..5efdd66f5dcd 100644
--- a/arch/arm/lib/io-readsw-armv4.S
+++ b/arch/arm/lib/io-readsw-armv4.S
@@ -76,8 +76,8 @@ ENTRY(__raw_readsw)
 		pack	r3, r3, ip
 		str	r3, [r1], #4
 
-.Lno_insw_2:	ldrneh	r3, [r0]
-		strneh	r3, [r1]
+.Lno_insw_2:	ldrhne	r3, [r0]
+		strhne	r3, [r1]
 
 		ldmfd	sp!, {r4, r5, pc}
 
@@ -94,7 +94,7 @@ ENTRY(__raw_readsw)
 #endif
 
 .Linsw_noalign:	stmfd	sp!, {r4, lr}
-		ldrccb	ip, [r1, #-1]!
+		ldrbcc	ip, [r1, #-1]!
 		bcc	1f
 
 		ldrh	ip, [r0]
@@ -121,11 +121,11 @@ ENTRY(__raw_readsw)
 
 3:		tst	r2, #1
 		strb	ip, [r1], #1
-		ldrneh	ip, [r0]
+		ldrhne	ip, [r0]
    _BE_ONLY_(	movne	ip, ip, ror #8		)
-		strneb	ip, [r1], #1
+		strbne	ip, [r1], #1
    _LE_ONLY_(	movne	ip, ip, lsr #8		)
    _BE_ONLY_(	movne	ip, ip, lsr #24		)
-		strneb	ip, [r1]
+		strbne	ip, [r1]
 		ldmfd	sp!, {r4, pc}
 ENDPROC(__raw_readsw)
diff --git a/arch/arm/lib/io-writesb.S b/arch/arm/lib/io-writesb.S
index a46bbc9b168b..7d2881a2381e 100644
--- a/arch/arm/lib/io-writesb.S
+++ b/arch/arm/lib/io-writesb.S
@@ -36,10 +36,10 @@
 		cmp	ip, #2
 		ldrb	r3, [r1], #1
 		strb	r3, [r0]
-		ldrgeb	r3, [r1], #1
-		strgeb	r3, [r0]
-		ldrgtb	r3, [r1], #1
-		strgtb	r3, [r0]
+		ldrbge	r3, [r1], #1
+		strbge	r3, [r0]
+		ldrbgt	r3, [r1], #1
+		strbgt	r3, [r0]
 		subs	r2, r2, ip
 		bne	.Loutsb_aligned
 
@@ -64,7 +64,7 @@ ENTRY(__raw_writesb)
 		bpl	.Loutsb_16_lp
 
 		tst	r2, #15
-		ldmeqfd	sp!, {r4, r5, pc}
+		ldmfdeq	sp!, {r4, r5, pc}
 
 .Loutsb_no_16:	tst	r2, #8
 		beq	.Loutsb_no_8
@@ -80,15 +80,15 @@ ENTRY(__raw_writesb)
 		outword	r3
 
 .Loutsb_no_4:	ands	r2, r2, #3
-		ldmeqfd	sp!, {r4, r5, pc}
+		ldmfdeq	sp!, {r4, r5, pc}
 
 		cmp	r2, #2
 		ldrb	r3, [r1], #1
 		strb	r3, [r0]
-		ldrgeb	r3, [r1], #1
-		strgeb	r3, [r0]
-		ldrgtb	r3, [r1]
-		strgtb	r3, [r0]
+		ldrbge	r3, [r1], #1
+		strbge	r3, [r0]
+		ldrbgt	r3, [r1]
+		strbgt	r3, [r0]
 
 		ldmfd	sp!, {r4, r5, pc}
 ENDPROC(__raw_writesb)
diff --git a/arch/arm/lib/io-writesl.S b/arch/arm/lib/io-writesl.S
index 4ea2435988c1..7596ac0c90b0 100644
--- a/arch/arm/lib/io-writesl.S
+++ b/arch/arm/lib/io-writesl.S
@@ -28,7 +28,7 @@ ENTRY(__raw_writesl)
 		bpl	1b
 		ldmfd	sp!, {r4, lr}
 2:		movs	r2, r2, lsl #31
-		ldmcsia	r1!, {r3, ip}
+		ldmiacs	r1!, {r3, ip}
 		strcs	r3, [r0, #0]
 		ldrne	r3, [r1, #0]
 		strcs	ip, [r0, #0]
diff --git a/arch/arm/lib/io-writesw-armv3.S b/arch/arm/lib/io-writesw-armv3.S
index 121789eb6802..cb94b9b49405 100644
--- a/arch/arm/lib/io-writesw-armv3.S
+++ b/arch/arm/lib/io-writesw-armv3.S
@@ -79,7 +79,7 @@ ENTRY(__raw_writesw)
 		bpl	.Loutsw_8_lp
 
 		tst	r2, #7
-		ldmeqfd	sp!, {r4, r5, r6, pc}
+		ldmfdeq	sp!, {r4, r5, r6, pc}
 
 .Lno_outsw_8:	tst	r2, #4
 		beq	.Lno_outsw_4
diff --git a/arch/arm/lib/io-writesw-armv4.S b/arch/arm/lib/io-writesw-armv4.S
index 269f90c51ad2..e6645b2f249e 100644
--- a/arch/arm/lib/io-writesw-armv4.S
+++ b/arch/arm/lib/io-writesw-armv4.S
@@ -61,8 +61,8 @@ ENTRY(__raw_writesw)
 		ldr	r3, [r1], #4
 		outword	r3
 
-.Lno_outsw_2:	ldrneh	r3, [r1]
-		strneh	r3, [r0]
+.Lno_outsw_2:	ldrhne	r3, [r1]
+		strhne	r3, [r0]
 
 		ldmfd	sp!, {r4, r5, pc}
 
@@ -95,6 +95,6 @@ ENTRY(__raw_writesw)
 
 		tst	r2, #1
 3:		movne	ip, r3, lsr #8
-		strneh	ip, [r0]
+		strhne	ip, [r0]
 		ret	lr
 ENDPROC(__raw_writesw)
diff --git a/arch/arm/lib/lib1funcs.S b/arch/arm/lib/lib1funcs.S
index 9397b2e532af..c23f9d9e2970 100644
--- a/arch/arm/lib/lib1funcs.S
+++ b/arch/arm/lib/lib1funcs.S
@@ -96,7 +96,7 @@ Boston, MA 02111-1307, USA.  */
 	subhs	\dividend, \dividend, \divisor, lsr #3
 	orrhs	\result,   \result,   \curbit,  lsr #3
 	cmp	\dividend, #0			@ Early termination?
-	movnes	\curbit,   \curbit,  lsr #4	@ No, any more bits to do?
+	movsne	\curbit,   \curbit,  lsr #4	@ No, any more bits to do?
 	movne	\divisor,  \divisor, lsr #4
 	bne	1b
 
@@ -182,7 +182,7 @@ Boston, MA 02111-1307, USA.  */
 	subhs	\dividend, \dividend, \divisor, lsr #3
 	cmp	\dividend, #1
 	mov	\divisor, \divisor, lsr #4
-	subges	\order, \order, #4
+	subsge	\order, \order, #4
 	bge	1b
 
 	tst	\order, #3
diff --git a/arch/arm/lib/memmove.S b/arch/arm/lib/memmove.S
index 69a9d47fc5ab..d70304cb2cd0 100644
--- a/arch/arm/lib/memmove.S
+++ b/arch/arm/lib/memmove.S
@@ -59,7 +59,7 @@ ENTRY(memmove)
 		blt	5f
 
 	CALGN(	ands	ip, r0, #31		)
-	CALGN(	sbcnes	r4, ip, r2		)  @ C is always set here
+	CALGN(	sbcsne	r4, ip, r2		)  @ C is always set here
 	CALGN(	bcs	2f			)
 	CALGN(	adr	r4, 6f			)
 	CALGN(	subs	r2, r2, ip		)  @ C is set here
@@ -114,20 +114,20 @@ ENTRY(memmove)
 	UNWIND(	.save	{r0, r4, lr}		) @ still in first stmfd block
 
 8:		movs	r2, r2, lsl #31
-		ldrneb	r3, [r1, #-1]!
-		ldrcsb	r4, [r1, #-1]!
-		ldrcsb	ip, [r1, #-1]
-		strneb	r3, [r0, #-1]!
-		strcsb	r4, [r0, #-1]!
-		strcsb	ip, [r0, #-1]
+		ldrbne	r3, [r1, #-1]!
+		ldrbcs	r4, [r1, #-1]!
+		ldrbcs	ip, [r1, #-1]
+		strbne	r3, [r0, #-1]!
+		strbcs	r4, [r0, #-1]!
+		strbcs	ip, [r0, #-1]
 		ldmfd	sp!, {r0, r4, pc}
 
 9:		cmp	ip, #2
-		ldrgtb	r3, [r1, #-1]!
-		ldrgeb	r4, [r1, #-1]!
+		ldrbgt	r3, [r1, #-1]!
+		ldrbge	r4, [r1, #-1]!
 		ldrb	lr, [r1, #-1]!
-		strgtb	r3, [r0, #-1]!
-		strgeb	r4, [r0, #-1]!
+		strbgt	r3, [r0, #-1]!
+		strbge	r4, [r0, #-1]!
 		subs	r2, r2, ip
 		strb	lr, [r0, #-1]!
 		blt	8b
@@ -150,7 +150,7 @@ ENTRY(memmove)
 		blt	14f
 
 	CALGN(	ands	ip, r0, #31		)
-	CALGN(	sbcnes	r4, ip, r2		)  @ C is always set here
+	CALGN(	sbcsne	r4, ip, r2		)  @ C is always set here
 	CALGN(	subcc	r2, r2, ip		)
 	CALGN(	bcc	15f			)
 
diff --git a/arch/arm/lib/memset.S b/arch/arm/lib/memset.S
index ed6d35d9cdb5..5593a45e0a8c 100644
--- a/arch/arm/lib/memset.S
+++ b/arch/arm/lib/memset.S
@@ -44,20 +44,20 @@ UNWIND( .save {r8, lr}      )
 	mov	lr, r3
 
 2:	subs	r2, r2, #64
-	stmgeia	ip!, {r1, r3, r8, lr}	@ 64 bytes at a time.
-	stmgeia	ip!, {r1, r3, r8, lr}
-	stmgeia	ip!, {r1, r3, r8, lr}
-	stmgeia	ip!, {r1, r3, r8, lr}
+	stmiage	ip!, {r1, r3, r8, lr}	@ 64 bytes at a time.
+	stmiage	ip!, {r1, r3, r8, lr}
+	stmiage	ip!, {r1, r3, r8, lr}
+	stmiage	ip!, {r1, r3, r8, lr}
 	bgt	2b
-	ldmeqfd	sp!, {r8, pc}		@ Now <64 bytes to go.
+	ldmfdeq	sp!, {r8, pc}		@ Now <64 bytes to go.
 /*
  * No need to correct the count; we're only testing bits from now on
  */
 	tst	r2, #32
-	stmneia	ip!, {r1, r3, r8, lr}
-	stmneia	ip!, {r1, r3, r8, lr}
+	stmiane	ip!, {r1, r3, r8, lr}
+	stmiane	ip!, {r1, r3, r8, lr}
 	tst	r2, #16
-	stmneia	ip!, {r1, r3, r8, lr}
+	stmiane	ip!, {r1, r3, r8, lr}
 	ldmfd	sp!, {r8, lr}
 UNWIND( .fnend              )
 
@@ -87,22 +87,22 @@ UNWIND( .save {r4-r8, lr}      )
 	rsb	r8, r8, #32
 	sub	r2, r2, r8
 	movs	r8, r8, lsl #(32 - 4)
-	stmcsia	ip!, {r4, r5, r6, r7}
-	stmmiia	ip!, {r4, r5}
+	stmiacs	ip!, {r4, r5, r6, r7}
+	stmiami	ip!, {r4, r5}
 	tst	r8, #(1 << 30)
 	mov	r8, r1
 	strne	r1, [ip], #4
 
 3:	subs	r2, r2, #64
-	stmgeia	ip!, {r1, r3-r8, lr}
-	stmgeia	ip!, {r1, r3-r8, lr}
+	stmiage	ip!, {r1, r3-r8, lr}
+	stmiage	ip!, {r1, r3-r8, lr}
 	bgt	3b
-	ldmeqfd	sp!, {r4-r8, pc}
+	ldmfdeq	sp!, {r4-r8, pc}
 
 	tst	r2, #32
-	stmneia	ip!, {r1, r3-r8, lr}
+	stmiane	ip!, {r1, r3-r8, lr}
 	tst	r2, #16
-	stmneia	ip!, {r4-r7}
+	stmiane	ip!, {r4-r7}
 	ldmfd	sp!, {r4-r8, lr}
 UNWIND( .fnend                 )
 
@@ -110,7 +110,7 @@ UNWIND( .fnend                 )
 
 UNWIND( .fnstart            )
 4:	tst	r2, #8
-	stmneia	ip!, {r1, r3}
+	stmiane	ip!, {r1, r3}
 	tst	r2, #4
 	strne	r1, [ip], #4
 /*
@@ -118,17 +118,17 @@ UNWIND( .fnstart            )
  * may have an unaligned pointer as well.
  */
 5:	tst	r2, #2
-	strneb	r1, [ip], #1
-	strneb	r1, [ip], #1
+	strbne	r1, [ip], #1
+	strbne	r1, [ip], #1
 	tst	r2, #1
-	strneb	r1, [ip], #1
+	strbne	r1, [ip], #1
 	ret	lr
 
 6:	subs	r2, r2, #4		@ 1 do we have enough
 	blt	5b			@ 1 bytes to align with?
 	cmp	r3, #2			@ 1
-	strltb	r1, [ip], #1		@ 1
-	strleb	r1, [ip], #1		@ 1
+	strblt	r1, [ip], #1		@ 1
+	strble	r1, [ip], #1		@ 1
 	strb	r1, [ip], #1		@ 1
 	add	r2, r2, r3		@ 1 (r2 = r2 - (4 - r3))
 	b	1b
diff --git a/arch/arm/mach-ks8695/include/mach/entry-macro.S b/arch/arm/mach-ks8695/include/mach/entry-macro.S
index 8315b34f32ff..7ff812cb010b 100644
--- a/arch/arm/mach-ks8695/include/mach/entry-macro.S
+++ b/arch/arm/mach-ks8695/include/mach/entry-macro.S
@@ -42,6 +42,6 @@
 		moveq	\irqstat, \irqstat, lsr #2
 		addeq	\irqnr, \irqnr, #2
 		tst	\irqstat, #0x01
-		addeqs	\irqnr, \irqnr, #1
+		addseq	\irqnr, \irqnr, #1
 1001:
 	.endm
diff --git a/arch/arm/mach-tegra/reset-handler.S b/arch/arm/mach-tegra/reset-handler.S
index 805f306fa6f7..e22ccf87eded 100644
--- a/arch/arm/mach-tegra/reset-handler.S
+++ b/arch/arm/mach-tegra/reset-handler.S
@@ -172,7 +172,7 @@ after_errata:
 	mov32	r5, TEGRA_IRAM_BASE + TEGRA_IRAM_RESET_HANDLER_OFFSET
 	mov	r0, #CPU_NOT_RESETTABLE
 	cmp	r10, #0
-	strneb	r0, [r5, #__tegra20_cpu1_resettable_status_offset]
+	strbne	r0, [r5, #__tegra20_cpu1_resettable_status_offset]
 1:
 #endif
 
diff --git a/arch/arm/mm/cache-v6.S b/arch/arm/mm/cache-v6.S
index 24659952c278..be68d62566c7 100644
--- a/arch/arm/mm/cache-v6.S
+++ b/arch/arm/mm/cache-v6.S
@@ -215,8 +215,8 @@ v6_dma_inv_range:
 #endif
 	tst	r1, #D_CACHE_LINE_SIZE - 1
 #ifdef CONFIG_DMA_CACHE_RWFO
-	ldrneb	r2, [r1, #-1]			@ read for ownership
-	strneb	r2, [r1, #-1]			@ write for ownership
+	ldrbne	r2, [r1, #-1]			@ read for ownership
+	strbne	r2, [r1, #-1]			@ write for ownership
 #endif
 	bic	r1, r1, #D_CACHE_LINE_SIZE - 1
 #ifdef HARVARD_CACHE
@@ -284,8 +284,8 @@ ENTRY(v6_dma_flush_range)
 	add	r0, r0, #D_CACHE_LINE_SIZE
 	cmp	r0, r1
 #ifdef CONFIG_DMA_CACHE_RWFO
-	ldrlob	r2, [r0]			@ read for ownership
-	strlob	r2, [r0]			@ write for ownership
+	ldrblo	r2, [r0]			@ read for ownership
+	strblo	r2, [r0]			@ write for ownership
 #endif
 	blo	1b
 	mov	r0, #0
diff --git a/arch/arm/mm/proc-v7m.S b/arch/arm/mm/proc-v7m.S
index 47a5acc64433..0deaf13e5e34 100644
--- a/arch/arm/mm/proc-v7m.S
+++ b/arch/arm/mm/proc-v7m.S
@@ -149,10 +149,10 @@ __v7m_setup_cont:
 
 	@ Configure caches (if implemented)
 	teq     r8, #0
-	stmneia	sp, {r0-r6, lr}		@ v7m_invalidate_l1 touches r0-r6
+	stmiane	sp, {r0-r6, lr}		@ v7m_invalidate_l1 touches r0-r6
 	blne	v7m_invalidate_l1
 	teq     r8, #0			@ re-evalutae condition
-	ldmneia	sp, {r0-r6, lr}
+	ldmiane	sp, {r0-r6, lr}
 
 	@ Configure the System Control Register to ensure 8-byte stack alignment
 	@ Note the STKALIGN bit is either RW or RAO.
-- 
2.20.1


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^ permalink raw reply related	[flat|nested] 14+ messages in thread
* [PATCH 4/5] ARM: use unified assembler in c files
  2019-02-07  9:48 [PATCH 0/5] ARM: convert to unified syntax Stefan Agner
                   ` (2 preceding siblings ...)
  2019-02-07  9:48 ` [PATCH 3/5] ARM: use unified assembler in assembly files Stefan Agner
@ 2019-02-07  9:48 ` Stefan Agner
  2019-02-09 17:28   ` Stefan Agner
  2019-02-07  9:48 ` [PATCH 5/5] ARM: warn if divided syntax assembler is used Stefan Agner
  4 siblings, 1 reply; 14+ messages in thread
From: Stefan Agner @ 2019-02-07  9:48 UTC (permalink / raw)
  To: linux
  Cc: nicolas.pitre, mark.rutland, arnd, ard.biesheuvel, will.deacon,
	julien.thierry, ndesaulniers, linux-kernel, Stefan Agner,
	thierry.reding, natechancellor, linux-arm-kernel

Use unified assembler syntax (UAL) in inline assembler. Divided
syntax is considered depricated. This will also allow to build
the kernel using LLVM's integrated assembler.

Signed-off-by: Stefan Agner <stefan@agner.ch>
---
 arch/arm/mm/copypage-v4mc.c | 2 +-
 arch/arm/mm/copypage-v4wb.c | 2 +-
 arch/arm/mm/copypage-v4wt.c | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mm/copypage-v4mc.c b/arch/arm/mm/copypage-v4mc.c
index b03202cddddb..b19c7ad1a6de 100644
--- a/arch/arm/mm/copypage-v4mc.c
+++ b/arch/arm/mm/copypage-v4mc.c
@@ -56,7 +56,7 @@ static void mc_copy_user_page(void *from, void *to)
 	ldmia	%0!, {r2, r3, ip, lr}		@ 4\n\
 	subs	%2, %2, #1			@ 1\n\
 	stmia	%1!, {r2, r3, ip, lr}		@ 4\n\
-	ldmneia	%0!, {r2, r3, ip, lr}		@ 4\n\
+	ldmiane	%0!, {r2, r3, ip, lr}		@ 4\n\
 	bne	1b				@ "
 	: "+&r" (from), "+&r" (to), "=&r" (tmp)
 	: "2" (PAGE_SIZE / 64)
diff --git a/arch/arm/mm/copypage-v4wb.c b/arch/arm/mm/copypage-v4wb.c
index cd3e165afeed..6e3c9b69dd25 100644
--- a/arch/arm/mm/copypage-v4wb.c
+++ b/arch/arm/mm/copypage-v4wb.c
@@ -38,7 +38,7 @@ static void v4wb_copy_user_page(void *kto, const void *kfrom)
 	ldmia	%1!, {r3, r4, ip, lr}		@ 4\n\
 	subs	%2, %2, #1			@ 1\n\
 	stmia	%0!, {r3, r4, ip, lr}		@ 4\n\
-	ldmneia	%1!, {r3, r4, ip, lr}		@ 4\n\
+	ldmiane	%1!, {r3, r4, ip, lr}		@ 4\n\
 	bne	1b				@ 1\n\
 	mcr	p15, 0, %1, c7, c10, 4		@ 1   drain WB"
 	: "+&r" (kto), "+&r" (kfrom), "=&r" (tmp)
diff --git a/arch/arm/mm/copypage-v4wt.c b/arch/arm/mm/copypage-v4wt.c
index 8614572e1296..4a40fa1cbc2a 100644
--- a/arch/arm/mm/copypage-v4wt.c
+++ b/arch/arm/mm/copypage-v4wt.c
@@ -34,7 +34,7 @@ static void v4wt_copy_user_page(void *kto, const void *kfrom)
 	ldmia	%1!, {r3, r4, ip, lr}		@ 4\n\
 	subs	%2, %2, #1			@ 1\n\
 	stmia	%0!, {r3, r4, ip, lr}		@ 4\n\
-	ldmneia	%1!, {r3, r4, ip, lr}		@ 4\n\
+	ldmiane	%1!, {r3, r4, ip, lr}		@ 4\n\
 	bne	1b				@ 1\n\
 	mcr	p15, 0, %2, c7, c7, 0		@ flush ID cache"
 	: "+&r" (kto), "+&r" (kfrom), "=&r" (tmp)
-- 
2.20.1


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^ permalink raw reply related	[flat|nested] 14+ messages in thread
* [PATCH 5/5] ARM: warn if divided syntax assembler is used
  2019-02-07  9:48 [PATCH 0/5] ARM: convert to unified syntax Stefan Agner
                   ` (3 preceding siblings ...)
  2019-02-07  9:48 ` [PATCH 4/5] ARM: use unified assembler in c files Stefan Agner
@ 2019-02-07  9:48 ` Stefan Agner
  2019-02-07 20:52   ` Nick Desaulniers
  4 siblings, 1 reply; 14+ messages in thread
From: Stefan Agner @ 2019-02-07  9:48 UTC (permalink / raw)
  To: linux
  Cc: nicolas.pitre, mark.rutland, arnd, ard.biesheuvel, will.deacon,
	julien.thierry, ndesaulniers, linux-kernel, Stefan Agner,
	thierry.reding, natechancellor, linux-arm-kernel

Remove the -mno-warn-deprecated assembler flag to make sure the GNU
assembler warns in case non-unified syntax is used.

Signed-off-by: Stefan Agner <stefan@agner.ch>
---
 arch/arm/Makefile | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index a0d08a3c9d33..811498e16673 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -112,9 +112,6 @@ ifeq ($(CONFIG_ARM_UNWIND),y)
 CFLAGS_ABI	+=-funwind-tables
 endif
 
-# Accept old syntax despite ".syntax unified"
-AFLAGS_NOWARN	:=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
-
 ifeq ($(CONFIG_THUMB2_KERNEL),y)
 AFLAGS_AUTOIT	:=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it)
 CFLAGS_ISA	:=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
-- 
2.20.1


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^ permalink raw reply related	[flat|nested] 14+ messages in thread
* Re: [PATCH 1/5] ARM: use unified assembler in macros
  2019-02-07  9:48 ` [PATCH 1/5] ARM: use unified assembler in macros Stefan Agner
@ 2019-02-07 13:34   ` Ard Biesheuvel
  2019-02-07 15:52   ` Nicolas Pitre
  1 sibling, 0 replies; 14+ messages in thread
From: Ard Biesheuvel @ 2019-02-07 13:34 UTC (permalink / raw)
  To: Stefan Agner
  Cc: Nicolas Pitre, Mark Rutland, Arnd Bergmann, Julien Thierry,
	Will Deacon, Nick Desaulniers, Russell King,
	Linux Kernel Mailing List, Thierry Reding, Nathan Chancellor,
	linux-arm-kernel

Hi Stefan,

On Thu, 7 Feb 2019 at 10:46, Stefan Agner <stefan@agner.ch> wrote:
>
> Use unified assembler syntax (UAL) in macros. Divided syntax is
> considered depricated.

'deprecated'

> This will also allow to build the kernel
> using LLVM's integrated assembler.
>
> Signed-off-by: Stefan Agner <stefan@agner.ch>
> ---
>  arch/arm/lib/copy_from_user.S | 2 +-
>  arch/arm/lib/copy_to_user.S   | 2 +-
>  arch/arm/lib/memcpy.S         | 4 ++--
>  3 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm/lib/copy_from_user.S b/arch/arm/lib/copy_from_user.S
> index 0d4c189c7f4f..712ca399f559 100644
> --- a/arch/arm/lib/copy_from_user.S
> +++ b/arch/arm/lib/copy_from_user.S
> @@ -91,7 +91,7 @@
>         .endm
>
>         .macro str1b ptr reg cond=al abort
> -       str\cond\()b \reg, [\ptr], #1
> +       strb\cond\() \reg, [\ptr], #1

You can drop the null token here, you only need that in the middle of
a word. Same below.


>         .endm
>
>         .macro enter reg1 reg2
> diff --git a/arch/arm/lib/copy_to_user.S b/arch/arm/lib/copy_to_user.S
> index 97a6ff4b7e3c..2e402b815e13 100644
> --- a/arch/arm/lib/copy_to_user.S
> +++ b/arch/arm/lib/copy_to_user.S
> @@ -49,7 +49,7 @@
>         .endm
>
>         .macro ldr1b ptr reg cond=al abort
> -       ldr\cond\()b \reg, [\ptr], #1
> +       ldrb\cond\() \reg, [\ptr], #1
>         .endm
>
>  #ifdef CONFIG_CPU_USE_DOMAINS
> diff --git a/arch/arm/lib/memcpy.S b/arch/arm/lib/memcpy.S
> index 64111bd4440b..1c9e625148ca 100644
> --- a/arch/arm/lib/memcpy.S
> +++ b/arch/arm/lib/memcpy.S
> @@ -30,7 +30,7 @@
>         .endm
>
>         .macro ldr1b ptr reg cond=al abort
> -       ldr\cond\()b \reg, [\ptr], #1
> +       ldrb\cond\() \reg, [\ptr], #1
>         .endm
>
>         .macro str1w ptr reg abort
> @@ -42,7 +42,7 @@
>         .endm
>
>         .macro str1b ptr reg cond=al abort
> -       str\cond\()b \reg, [\ptr], #1
> +       strb\cond\() \reg, [\ptr], #1
>         .endm
>
>         .macro enter reg1 reg2
> --
> 2.20.1
>

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^ permalink raw reply	[flat|nested] 14+ messages in thread
* Re: [PATCH 1/5] ARM: use unified assembler in macros
  2019-02-07  9:48 ` [PATCH 1/5] ARM: use unified assembler in macros Stefan Agner
  2019-02-07 13:34   ` Ard Biesheuvel
@ 2019-02-07 15:52   ` Nicolas Pitre
  1 sibling, 0 replies; 14+ messages in thread
From: Nicolas Pitre @ 2019-02-07 15:52 UTC (permalink / raw)
  To: Stefan Agner
  Cc: mark.rutland, Arnd Bergmann, ard.biesheuvel, Will Deacon,
	julien.thierry, ndesaulniers, Russell King - ARM Linux,
	linux-kernel, thierry.reding, natechancellor, linux-arm-kernel

On Thu, 7 Feb 2019, Stefan Agner wrote:

> Use unified assembler syntax (UAL) in macros. Divided syntax is
> considered depricated. This will also allow to build the kernel
> using LLVM's integrated assembler.
> 
> Signed-off-by: Stefan Agner <stefan@agner.ch>
> ---
>  arch/arm/lib/copy_from_user.S | 2 +-
>  arch/arm/lib/copy_to_user.S   | 2 +-
>  arch/arm/lib/memcpy.S         | 4 ++--
>  3 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm/lib/copy_from_user.S b/arch/arm/lib/copy_from_user.S
> index 0d4c189c7f4f..712ca399f559 100644
> --- a/arch/arm/lib/copy_from_user.S
> +++ b/arch/arm/lib/copy_from_user.S
> @@ -91,7 +91,7 @@
>  	.endm
>  
>  	.macro str1b ptr reg cond=al abort
> -	str\cond\()b \reg, [\ptr], #1
> +	strb\cond\() \reg, [\ptr], #1

You don't need the \() any longer. This was used simply to separate the 
b suffix from the cond parameter name. 


Nicolas

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^ permalink raw reply	[flat|nested] 14+ messages in thread
* Re: [PATCH 2/5] ARM: use unified assembler in headers
  2019-02-07  9:48 ` [PATCH 2/5] ARM: use unified assembler in headers Stefan Agner
@ 2019-02-07 16:10   ` Nicolas Pitre
  2019-02-09 22:54     ` Stefan Agner
  0 siblings, 1 reply; 14+ messages in thread
From: Nicolas Pitre @ 2019-02-07 16:10 UTC (permalink / raw)
  To: Stefan Agner
  Cc: mark.rutland, arnd, ard.biesheuvel, will.deacon, julien.thierry,
	ndesaulniers, linux, linux-kernel, thierry.reding,
	natechancellor, linux-arm-kernel

On Thu, 7 Feb 2019, Stefan Agner wrote:

> Use unified assembler syntax (UAL) in headers. Divided syntax is
> considered depricated. This will also allow to build the kernel
> using LLVM's integrated assembler.
> 
> Signed-off-by: Stefan Agner <stefan@agner.ch>
> ---
>  arch/arm/include/asm/assembler.h | 8 ++++----
>  arch/arm/include/asm/vfpmacros.h | 8 ++++----
>  arch/arm/lib/bitops.h            | 8 ++++----
>  3 files changed, 12 insertions(+), 12 deletions(-)
> 
> diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
> index 28a48e0d4cca..60465b55683c 100644
> --- a/arch/arm/include/asm/assembler.h
> +++ b/arch/arm/include/asm/assembler.h
> @@ -376,7 +376,7 @@ THUMB(	orr	\reg , \reg , #PSR_T_BIT	)
>  	.macro	usraccoff, instr, reg, ptr, inc, off, cond, abort, t=TUSER()
>  9999:
>  	.if	\inc == 1
> -	\instr\cond\()b\()\t\().w \reg, [\ptr, #\off]
> +	\instr\()b\cond\()\t\().w \reg, [\ptr, #\off]

Similar comment here: you added a \() between \instr and b as needed, 
but the one between \cond and \t (which was already redundant before) 
may go.


Nicolas

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^ permalink raw reply	[flat|nested] 14+ messages in thread
* Re: [PATCH 5/5] ARM: warn if divided syntax assembler is used
  2019-02-07  9:48 ` [PATCH 5/5] ARM: warn if divided syntax assembler is used Stefan Agner
@ 2019-02-07 20:52   ` Nick Desaulniers
  0 siblings, 0 replies; 14+ messages in thread
From: Nick Desaulniers @ 2019-02-07 20:52 UTC (permalink / raw)
  To: Stefan Agner
  Cc: Nicolas Pitre, Mark Rutland, Arnd Bergmann, Ard Biesheuvel,
	julien.thierry, Will Deacon, Russell King, LKML, Thierry Reding,
	Nathan Chancellor, Linux ARM

On Thu, Feb 7, 2019 at 1:46 AM Stefan Agner <stefan@agner.ch> wrote:
>
> Remove the -mno-warn-deprecated assembler flag to make sure the GNU
> assembler warns in case non-unified syntax is used.
>
> Signed-off-by: Stefan Agner <stefan@agner.ch>

Good idea, thanks for unifying the syntax.

> ---
>  arch/arm/Makefile | 3 ---
>  1 file changed, 3 deletions(-)
>
> diff --git a/arch/arm/Makefile b/arch/arm/Makefile
> index a0d08a3c9d33..811498e16673 100644
> --- a/arch/arm/Makefile
> +++ b/arch/arm/Makefile
> @@ -112,9 +112,6 @@ ifeq ($(CONFIG_ARM_UNWIND),y)
>  CFLAGS_ABI     +=-funwind-tables
>  endif
>
> -# Accept old syntax despite ".syntax unified"
> -AFLAGS_NOWARN  :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
> -

Shouldn't you also remove the references to the now gone AFLAGS_NOWARN
on lines 120 AND 127?

>  ifeq ($(CONFIG_THUMB2_KERNEL),y)
>  AFLAGS_AUTOIT  :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it)
>  CFLAGS_ISA     :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
> --
> 2.20.1
>


-- 
Thanks,
~Nick Desaulniers

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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 14+ messages in thread
* Re: [PATCH 4/5] ARM: use unified assembler in c files
  2019-02-07  9:48 ` [PATCH 4/5] ARM: use unified assembler in c files Stefan Agner
@ 2019-02-09 17:28   ` Stefan Agner
  2019-02-11 18:17     ` Nick Desaulniers
  0 siblings, 1 reply; 14+ messages in thread
From: Stefan Agner @ 2019-02-09 17:28 UTC (permalink / raw)
  To: linux
  Cc: nicolas.pitre, mark.rutland, arnd, ard.biesheuvel, will.deacon,
	julien.thierry, ndesaulniers, linux-kernel, thierry.reding,
	natechancellor, linux-arm-kernel

Thanks for the reviews so far.

During some more testing I stumbled upon another issue:

On 07.02.2019 10:48, Stefan Agner wrote:
> Use unified assembler syntax (UAL) in inline assembler. Divided
> syntax is considered depricated. This will also allow to build
> the kernel using LLVM's integrated assembler.
> 
> Signed-off-by: Stefan Agner <stefan@agner.ch>
> ---
>  arch/arm/mm/copypage-v4mc.c | 2 +-
>  arch/arm/mm/copypage-v4wb.c | 2 +-
>  arch/arm/mm/copypage-v4wt.c | 2 +-
>  3 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/arm/mm/copypage-v4mc.c b/arch/arm/mm/copypage-v4mc.c
> index b03202cddddb..b19c7ad1a6de 100644
> --- a/arch/arm/mm/copypage-v4mc.c
> +++ b/arch/arm/mm/copypage-v4mc.c
> @@ -56,7 +56,7 @@ static void mc_copy_user_page(void *from, void *to)
>  	ldmia	%0!, {r2, r3, ip, lr}		@ 4\n\
>  	subs	%2, %2, #1			@ 1\n\
>  	stmia	%1!, {r2, r3, ip, lr}		@ 4\n\
> -	ldmneia	%0!, {r2, r3, ip, lr}		@ 4\n\
> +	ldmiane	%0!, {r2, r3, ip, lr}		@ 4\n\
>  	bne	1b				@ "
>  	: "+&r" (from), "+&r" (to), "=&r" (tmp)
>  	: "2" (PAGE_SIZE / 64)
> diff --git a/arch/arm/mm/copypage-v4wb.c b/arch/arm/mm/copypage-v4wb.c
> index cd3e165afeed..6e3c9b69dd25 100644
> --- a/arch/arm/mm/copypage-v4wb.c
> +++ b/arch/arm/mm/copypage-v4wb.c
> @@ -38,7 +38,7 @@ static void v4wb_copy_user_page(void *kto, const void *kfrom)
>  	ldmia	%1!, {r3, r4, ip, lr}		@ 4\n\
>  	subs	%2, %2, #1			@ 1\n\
>  	stmia	%0!, {r3, r4, ip, lr}		@ 4\n\
> -	ldmneia	%1!, {r3, r4, ip, lr}		@ 4\n\
> +	ldmiane	%1!, {r3, r4, ip, lr}		@ 4\n\
>  	bne	1b				@ 1\n\
>  	mcr	p15, 0, %1, c7, c10, 4		@ 1   drain WB"
>  	: "+&r" (kto), "+&r" (kfrom), "=&r" (tmp)
> diff --git a/arch/arm/mm/copypage-v4wt.c b/arch/arm/mm/copypage-v4wt.c
> index 8614572e1296..4a40fa1cbc2a 100644
> --- a/arch/arm/mm/copypage-v4wt.c
> +++ b/arch/arm/mm/copypage-v4wt.c
> @@ -34,7 +34,7 @@ static void v4wt_copy_user_page(void *kto, const void *kfrom)
>  	ldmia	%1!, {r3, r4, ip, lr}		@ 4\n\
>  	subs	%2, %2, #1			@ 1\n\
>  	stmia	%0!, {r3, r4, ip, lr}		@ 4\n\
> -	ldmneia	%1!, {r3, r4, ip, lr}		@ 4\n\
> +	ldmiane	%1!, {r3, r4, ip, lr}		@ 4\n\
>  	bne	1b				@ 1\n\
>  	mcr	p15, 0, %2, c7, c7, 0		@ flush ID cache"
>  	: "+&r" (kto), "+&r" (kfrom), "=&r" (tmp)

When compiling with gcc, this leads to:

/tmp/ccrvA1wy.s: Assembler messages:
/tmp/ccrvA1wy.s:180: Error: bad instruction `ldmiane r0!,{r3,r4,ip,lr}'
make[1]: *** [scripts/Makefile.build:277: arch/arm/mm/copypage-v4wb.o]
Error 1
make: *** [Makefile:1042: arch/arm/mm] Error 2

Unfortunately, the gcc option -masm-syntax-unified which allows unified
syntax in inline assembly is broken (see also
https://lkml.org/lkml/2019/1/7/1320).

So this requires to sprinkle those inline assembly with ".syntax
unified" strings, similar to how I've done it in uaccess.h.

--
Stefan

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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 14+ messages in thread
* Re: [PATCH 2/5] ARM: use unified assembler in headers
  2019-02-07 16:10   ` Nicolas Pitre
@ 2019-02-09 22:54     ` Stefan Agner
  0 siblings, 0 replies; 14+ messages in thread
From: Stefan Agner @ 2019-02-09 22:54 UTC (permalink / raw)
  To: Nicolas Pitre
  Cc: mark.rutland, arnd, ard.biesheuvel, will.deacon, julien.thierry,
	ndesaulniers, linux, linux-kernel, thierry.reding,
	natechancellor, linux-arm-kernel

On 07.02.2019 17:10, Nicolas Pitre wrote:
> On Thu, 7 Feb 2019, Stefan Agner wrote:
> 
>> Use unified assembler syntax (UAL) in headers. Divided syntax is
>> considered depricated. This will also allow to build the kernel
>> using LLVM's integrated assembler.
>>
>> Signed-off-by: Stefan Agner <stefan@agner.ch>
>> ---
>>  arch/arm/include/asm/assembler.h | 8 ++++----
>>  arch/arm/include/asm/vfpmacros.h | 8 ++++----
>>  arch/arm/lib/bitops.h            | 8 ++++----
>>  3 files changed, 12 insertions(+), 12 deletions(-)
>>
>> diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
>> index 28a48e0d4cca..60465b55683c 100644
>> --- a/arch/arm/include/asm/assembler.h
>> +++ b/arch/arm/include/asm/assembler.h
>> @@ -376,7 +376,7 @@ THUMB(	orr	\reg , \reg , #PSR_T_BIT	)
>>  	.macro	usraccoff, instr, reg, ptr, inc, off, cond, abort, t=TUSER()
>>  9999:
>>  	.if	\inc == 1
>> -	\instr\cond\()b\()\t\().w \reg, [\ptr, #\off]
>> +	\instr\()b\cond\()\t\().w \reg, [\ptr, #\off]
> 
> Similar comment here: you added a \() between \instr and b as needed, 
> but the one between \cond and \t (which was already redundant before) 
> may go.

Thanks, Nicolas, fixed this.

Also noticed that the else branch has such a null token in excess.

Furthermore, the "t" token actually needs to be before the condition
token too. It should look something like this in the end:

.if     \inc == 1
\instr\()b\t\cond\().w \reg, [\ptr, #\off]
.elseif \inc == 4
\instr\t\cond\().w \reg, [\ptr, #\off]
.else
...

--
Stefan

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^ permalink raw reply	[flat|nested] 14+ messages in thread
* Re: [PATCH 4/5] ARM: use unified assembler in c files
  2019-02-09 17:28   ` Stefan Agner
@ 2019-02-11 18:17     ` Nick Desaulniers
  2019-02-12 19:26       ` Stefan Agner
  0 siblings, 1 reply; 14+ messages in thread
From: Nick Desaulniers @ 2019-02-11 18:17 UTC (permalink / raw)
  To: Stefan Agner
  Cc: Nicolas Pitre, Mark Rutland, Arnd Bergmann, Ard Biesheuvel,
	julien.thierry, Will Deacon, Russell King, LKML, Thierry Reding,
	Nathan Chancellor, Linux ARM

On Sat, Feb 9, 2019 at 9:28 AM Stefan Agner <stefan@agner.ch> wrote:
>
> Thanks for the reviews so far.
>
> During some more testing I stumbled upon another issue:
>
> On 07.02.2019 10:48, Stefan Agner wrote:
> > Use unified assembler syntax (UAL) in inline assembler. Divided
> > syntax is considered depricated. This will also allow to build
> > the kernel using LLVM's integrated assembler.
> >
> > Signed-off-by: Stefan Agner <stefan@agner.ch>
> > ---
> >  arch/arm/mm/copypage-v4mc.c | 2 +-
> >  arch/arm/mm/copypage-v4wb.c | 2 +-
> >  arch/arm/mm/copypage-v4wt.c | 2 +-
> >  3 files changed, 3 insertions(+), 3 deletions(-)
> >
> > diff --git a/arch/arm/mm/copypage-v4mc.c b/arch/arm/mm/copypage-v4mc.c
> > index b03202cddddb..b19c7ad1a6de 100644
> > --- a/arch/arm/mm/copypage-v4mc.c
> > +++ b/arch/arm/mm/copypage-v4mc.c
> > @@ -56,7 +56,7 @@ static void mc_copy_user_page(void *from, void *to)
> >       ldmia   %0!, {r2, r3, ip, lr}           @ 4\n\
> >       subs    %2, %2, #1                      @ 1\n\
> >       stmia   %1!, {r2, r3, ip, lr}           @ 4\n\
> > -     ldmneia %0!, {r2, r3, ip, lr}           @ 4\n\
> > +     ldmiane %0!, {r2, r3, ip, lr}           @ 4\n\
> >       bne     1b                              @ "
> >       : "+&r" (from), "+&r" (to), "=&r" (tmp)
> >       : "2" (PAGE_SIZE / 64)
> > diff --git a/arch/arm/mm/copypage-v4wb.c b/arch/arm/mm/copypage-v4wb.c
> > index cd3e165afeed..6e3c9b69dd25 100644
> > --- a/arch/arm/mm/copypage-v4wb.c
> > +++ b/arch/arm/mm/copypage-v4wb.c
> > @@ -38,7 +38,7 @@ static void v4wb_copy_user_page(void *kto, const void *kfrom)
> >       ldmia   %1!, {r3, r4, ip, lr}           @ 4\n\
> >       subs    %2, %2, #1                      @ 1\n\
> >       stmia   %0!, {r3, r4, ip, lr}           @ 4\n\
> > -     ldmneia %1!, {r3, r4, ip, lr}           @ 4\n\
> > +     ldmiane %1!, {r3, r4, ip, lr}           @ 4\n\
> >       bne     1b                              @ 1\n\
> >       mcr     p15, 0, %1, c7, c10, 4          @ 1   drain WB"
> >       : "+&r" (kto), "+&r" (kfrom), "=&r" (tmp)
> > diff --git a/arch/arm/mm/copypage-v4wt.c b/arch/arm/mm/copypage-v4wt.c
> > index 8614572e1296..4a40fa1cbc2a 100644
> > --- a/arch/arm/mm/copypage-v4wt.c
> > +++ b/arch/arm/mm/copypage-v4wt.c
> > @@ -34,7 +34,7 @@ static void v4wt_copy_user_page(void *kto, const void *kfrom)
> >       ldmia   %1!, {r3, r4, ip, lr}           @ 4\n\
> >       subs    %2, %2, #1                      @ 1\n\
> >       stmia   %0!, {r3, r4, ip, lr}           @ 4\n\
> > -     ldmneia %1!, {r3, r4, ip, lr}           @ 4\n\
> > +     ldmiane %1!, {r3, r4, ip, lr}           @ 4\n\
> >       bne     1b                              @ 1\n\
> >       mcr     p15, 0, %2, c7, c7, 0           @ flush ID cache"
> >       : "+&r" (kto), "+&r" (kfrom), "=&r" (tmp)
>
> When compiling with gcc, this leads to:
>
> /tmp/ccrvA1wy.s: Assembler messages:
> /tmp/ccrvA1wy.s:180: Error: bad instruction `ldmiane r0!,{r3,r4,ip,lr}'
> make[1]: *** [scripts/Makefile.build:277: arch/arm/mm/copypage-v4wb.o]
> Error 1
> make: *** [Makefile:1042: arch/arm/mm] Error 2
>
> Unfortunately, the gcc option -masm-syntax-unified which allows unified
> syntax in inline assembly is broken (see also
> https://lkml.org/lkml/2019/1/7/1320).
>
> So this requires to sprinkle those inline assembly with ".syntax
> unified" strings, similar to how I've done it in uaccess.h.

Not sure if this is purely a bug in GCC; Clang treats inline asm
statements as unique, so asm directives do not carry over from one
inline asm statement to another.  This has caused issues in other
arch's inline assembly, where we need to repeat asm directives
repeatedly for each inline asm statement.
https://bugs.llvm.org/show_bug.cgi?id=19749

-- 
Thanks,
~Nick Desaulniers

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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 14+ messages in thread
* Re: [PATCH 4/5] ARM: use unified assembler in c files
  2019-02-11 18:17     ` Nick Desaulniers
@ 2019-02-12 19:26       ` Stefan Agner
  0 siblings, 0 replies; 14+ messages in thread
From: Stefan Agner @ 2019-02-12 19:26 UTC (permalink / raw)
  To: Nick Desaulniers
  Cc: Nicolas Pitre, Mark Rutland, Arnd Bergmann, Ard Biesheuvel,
	julien.thierry, Will Deacon, Russell King, LKML, Thierry Reding,
	Nathan Chancellor, Linux ARM

On 11.02.2019 19:17, Nick Desaulniers wrote:
> On Sat, Feb 9, 2019 at 9:28 AM Stefan Agner <stefan@agner.ch> wrote:
>>
>> Thanks for the reviews so far.
>>
>> During some more testing I stumbled upon another issue:
>>
>> On 07.02.2019 10:48, Stefan Agner wrote:
>> > Use unified assembler syntax (UAL) in inline assembler. Divided
>> > syntax is considered depricated. This will also allow to build
>> > the kernel using LLVM's integrated assembler.
>> >
>> > Signed-off-by: Stefan Agner <stefan@agner.ch>
>> > ---
>> >  arch/arm/mm/copypage-v4mc.c | 2 +-
>> >  arch/arm/mm/copypage-v4wb.c | 2 +-
>> >  arch/arm/mm/copypage-v4wt.c | 2 +-
>> >  3 files changed, 3 insertions(+), 3 deletions(-)
>> >
>> > diff --git a/arch/arm/mm/copypage-v4mc.c b/arch/arm/mm/copypage-v4mc.c
>> > index b03202cddddb..b19c7ad1a6de 100644
>> > --- a/arch/arm/mm/copypage-v4mc.c
>> > +++ b/arch/arm/mm/copypage-v4mc.c
>> > @@ -56,7 +56,7 @@ static void mc_copy_user_page(void *from, void *to)
>> >       ldmia   %0!, {r2, r3, ip, lr}           @ 4\n\
>> >       subs    %2, %2, #1                      @ 1\n\
>> >       stmia   %1!, {r2, r3, ip, lr}           @ 4\n\
>> > -     ldmneia %0!, {r2, r3, ip, lr}           @ 4\n\
>> > +     ldmiane %0!, {r2, r3, ip, lr}           @ 4\n\
>> >       bne     1b                              @ "
>> >       : "+&r" (from), "+&r" (to), "=&r" (tmp)
>> >       : "2" (PAGE_SIZE / 64)
>> > diff --git a/arch/arm/mm/copypage-v4wb.c b/arch/arm/mm/copypage-v4wb.c
>> > index cd3e165afeed..6e3c9b69dd25 100644
>> > --- a/arch/arm/mm/copypage-v4wb.c
>> > +++ b/arch/arm/mm/copypage-v4wb.c
>> > @@ -38,7 +38,7 @@ static void v4wb_copy_user_page(void *kto, const void *kfrom)
>> >       ldmia   %1!, {r3, r4, ip, lr}           @ 4\n\
>> >       subs    %2, %2, #1                      @ 1\n\
>> >       stmia   %0!, {r3, r4, ip, lr}           @ 4\n\
>> > -     ldmneia %1!, {r3, r4, ip, lr}           @ 4\n\
>> > +     ldmiane %1!, {r3, r4, ip, lr}           @ 4\n\
>> >       bne     1b                              @ 1\n\
>> >       mcr     p15, 0, %1, c7, c10, 4          @ 1   drain WB"
>> >       : "+&r" (kto), "+&r" (kfrom), "=&r" (tmp)
>> > diff --git a/arch/arm/mm/copypage-v4wt.c b/arch/arm/mm/copypage-v4wt.c
>> > index 8614572e1296..4a40fa1cbc2a 100644
>> > --- a/arch/arm/mm/copypage-v4wt.c
>> > +++ b/arch/arm/mm/copypage-v4wt.c
>> > @@ -34,7 +34,7 @@ static void v4wt_copy_user_page(void *kto, const void *kfrom)
>> >       ldmia   %1!, {r3, r4, ip, lr}           @ 4\n\
>> >       subs    %2, %2, #1                      @ 1\n\
>> >       stmia   %0!, {r3, r4, ip, lr}           @ 4\n\
>> > -     ldmneia %1!, {r3, r4, ip, lr}           @ 4\n\
>> > +     ldmiane %1!, {r3, r4, ip, lr}           @ 4\n\
>> >       bne     1b                              @ 1\n\
>> >       mcr     p15, 0, %2, c7, c7, 0           @ flush ID cache"
>> >       : "+&r" (kto), "+&r" (kfrom), "=&r" (tmp)
>>
>> When compiling with gcc, this leads to:
>>
>> /tmp/ccrvA1wy.s: Assembler messages:
>> /tmp/ccrvA1wy.s:180: Error: bad instruction `ldmiane r0!,{r3,r4,ip,lr}'
>> make[1]: *** [scripts/Makefile.build:277: arch/arm/mm/copypage-v4wb.o]
>> Error 1
>> make: *** [Makefile:1042: arch/arm/mm] Error 2
>>
>> Unfortunately, the gcc option -masm-syntax-unified which allows unified
>> syntax in inline assembly is broken (see also
>> https://lkml.org/lkml/2019/1/7/1320).
>>
>> So this requires to sprinkle those inline assembly with ".syntax
>> unified" strings, similar to how I've done it in uaccess.h.
> 
> Not sure if this is purely a bug in GCC; Clang treats inline asm
> statements as unique, so asm directives do not carry over from one
> inline asm statement to another.  This has caused issues in other
> arch's inline assembly, where we need to repeat asm directives
> repeatedly for each inline asm statement.
> https://bugs.llvm.org/show_bug.cgi?id=19749

I don't think that this Clang bug is related.

GCC always emits a ".syntax xxx". The -masm-syntax-unified flag allows
to select unified syntax, but it is broken in current GCC releases. I
reported the bug and sent a fix to the GCC community, the upcoming GCC
9, as well as 7 and 8 bugfix releases, will have it fixed.

See:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88648

--
Stefan

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^ permalink raw reply	[flat|nested] 14+ messages in thread
end of thread, other threads:[~2019-02-12 19:26 UTC | newest]

Thread overview: 14+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-02-07  9:48 [PATCH 0/5] ARM: convert to unified syntax Stefan Agner
2019-02-07  9:48 ` [PATCH 1/5] ARM: use unified assembler in macros Stefan Agner
2019-02-07 13:34   ` Ard Biesheuvel
2019-02-07 15:52   ` Nicolas Pitre
2019-02-07  9:48 ` [PATCH 2/5] ARM: use unified assembler in headers Stefan Agner
2019-02-07 16:10   ` Nicolas Pitre
2019-02-09 22:54     ` Stefan Agner
2019-02-07  9:48 ` [PATCH 3/5] ARM: use unified assembler in assembly files Stefan Agner
2019-02-07  9:48 ` [PATCH 4/5] ARM: use unified assembler in c files Stefan Agner
2019-02-09 17:28   ` Stefan Agner
2019-02-11 18:17     ` Nick Desaulniers
2019-02-12 19:26       ` Stefan Agner
2019-02-07  9:48 ` [PATCH 5/5] ARM: warn if divided syntax assembler is used Stefan Agner
2019-02-07 20:52   ` Nick Desaulniers

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