Adapt ARM assembly pack for iOS.

This is achieved by filtering perlasm output through arm-xlate.pl. But note
that it's done only if "flavour" argument is not 'void'. As 'void' is
default value for other ARM targets, permasm output is not actually
filtered on previously validated platforms.

Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
(cherry picked from commit 874faf2ffb22187ad5483d9691a3a2eb7112f161)

7 files changed, 136 insertions, 21 deletions

diff --git a/crypto/aes/asm/aes-armv4.pl b/crypto/aes/asm/aes-armv4.pl
index 55b6e04b67..ed5125827b 100644
--- a/crypto/aes/asm/aes-armv4.pl
+++ b/crypto/aes/asm/aes-armv4.pl
@@ -32,8 +32,20 @@
 # Profiler-assisted and platform-specific optimization resulted in 16%
 # improvement on Cortex A8 core and ~21.5 cycles per byte.
 
-while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {}
-open STDOUT,">$output";
+$flavour = shift;
+if ($flavour=~/^\w[\w\-]*\.\w+$/) { $output=$flavour; undef $flavour; }
+else { while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} }
+
+if ($flavour && $flavour ne "void") {
+    $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
+    ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
+    ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
+    die "can't locate arm-xlate.pl";
+
+    open STDOUT,"| \"$^X\" $xlate $flavour $output";
+} else {
+    open STDOUT,">$output";
+}
 
 $s0="r0";
 $s1="r1";
@@ -171,7 +183,12 @@ AES_encrypt:
 	stmdb   sp!,{r1,r4-r12,lr}
 	mov	$rounds,r0		@ inp
 	mov	$key,r2
+#ifdef	__APPLE__
+	mov	$tbl,#AES_encrypt-AES_Te
+	sub	$tbl,r3,$tbl			@ Te
+#else
 	sub	$tbl,r3,#AES_encrypt-AES_Te	@ Te
+#endif
 #if __ARM_ARCH__<7
 	ldrb	$s0,[$rounds,#3]	@ load input data in endian-neutral
 	ldrb	$t1,[$rounds,#2]	@ manner...
@@ -425,7 +442,12 @@ AES_set_encrypt_key:
 	bne	.Labrt
 
 .Lok:	stmdb   sp!,{r4-r12,lr}
+#ifdef	__APPLE__
+	mov	$tbl,#AES_set_encrypt_key-AES_Te-1024
+	sub	$tbl,r3,$tbl					@ Te4
+#else
 	sub	$tbl,r3,#AES_set_encrypt_key-AES_Te-1024	@ Te4
+#endif
 
 	mov	$rounds,r0		@ inp
 	mov	lr,r1			@ bits
@@ -886,7 +908,12 @@ AES_decrypt:
 	stmdb   sp!,{r1,r4-r12,lr}
 	mov	$rounds,r0		@ inp
 	mov	$key,r2
+#ifdef	__APPLE__
+	mov	$tbl,#AES_decrypt-AES_Td
+	sub	$tbl,r3,$tbl				@ Td
+#else
 	sub	$tbl,r3,#AES_decrypt-AES_Td		@ Td
+#endif
 #if __ARM_ARCH__<7
 	ldrb	$s0,[$rounds,#3]	@ load input data in endian-neutral
 	ldrb	$t1,[$rounds,#2]	@ manner...
diff --git a/crypto/bn/asm/armv4-gf2m.pl b/crypto/bn/asm/armv4-gf2m.pl
index c52e0b75b5..737659f0db 100644
--- a/crypto/bn/asm/armv4-gf2m.pl
+++ b/crypto/bn/asm/armv4-gf2m.pl
@@ -21,8 +21,20 @@
 # runs in even less cycles, ~30, improvement is measurable only on
 # longer keys. One has to optimize code elsewhere to get NEON glow...
 
-while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {}
-open STDOUT,">$output";
+$flavour = shift;
+if ($flavour=~/^\w[\w\-]*\.\w+$/) { $output=$flavour; undef $flavour; }
+else { while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} }
+
+if ($flavour && $flavour ne "void") {
+    $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
+    ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
+    ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
+    die "can't locate arm-xlate.pl";
+
+    open STDOUT,"| \"$^X\" $xlate $flavour $output";
+} else {
+    open STDOUT,">$output";
+}
 
 sub Dlo()   { shift=~m|q([1]?[0-9])|?"d".($1*2):"";     }
 sub Dhi()   { shift=~m|q([1]?[0-9])|?"d".($1*2+1):"";   }
@@ -170,11 +182,18 @@ bn_GF2m_mul_2x2:
 #if __ARM_ARCH__>=7
 	ldr	r12,.LOPENSSL_armcap
 .Lpic:	ldr	r12,[pc,r12]
+#ifdef	__APPLE__
+	ldr	r12,[r12]
+#endif
 	tst	r12,#1
 	beq	.Lialu
 
 	veor	$A1,$A1
+#ifdef	__APPLE__
+	vmov	$B1,r3,r3		@ two copies of b1
+#else
 	vmov.32	$B1,r3,r3		@ two copies of b1
+#endif
 	vmov.32	${A1}[0],r1		@ a1
 
 	veor	$A0,$A0
diff --git a/crypto/bn/asm/armv4-mont.pl b/crypto/bn/asm/armv4-mont.pl
index f78a8b5f0f..aa00f38c2f 100644
--- a/crypto/bn/asm/armv4-mont.pl
+++ b/crypto/bn/asm/armv4-mont.pl
@@ -23,8 +23,20 @@
 # than 1/2KB. Windows CE port would be trivial, as it's exclusively
 # about decorations, ABI and instruction syntax are identical.
 
-while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {}
-open STDOUT,">$output";
+$flavour = shift;
+if ($flavour=~/^\w[\w\-]*\.\w+$/) { $output=$flavour; undef $flavour; }
+else { while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} }
+
+if ($flavour && $flavour ne "void") {
+    $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
+    ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
+    ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
+    die "can't locate arm-xlate.pl";
+
+    open STDOUT,"| \"$^X\" $xlate $flavour $output";
+} else {
+    open STDOUT,">$output";
+}
 
 $num="r0";	# starts as num argument, but holds &tp[num-1]
 $ap="r1";
diff --git a/crypto/modes/asm/ghash-armv4.pl b/crypto/modes/asm/ghash-armv4.pl
index d91586ee29..3799b2b559 100644
--- a/crypto/modes/asm/ghash-armv4.pl
+++ b/crypto/modes/asm/ghash-armv4.pl
@@ -57,8 +57,20 @@
 # *native* byte order on current platform. See gcm128.c for working
 # example...
 
-while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {}
-open STDOUT,">$output";
+$flavour = shift;
+if ($flavour=~/^\w[\w\-]*\.\w+$/) { $output=$flavour; undef $flavour; }
+else { while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} }
+
+if ($flavour && $flavour ne "void") {
+    $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
+    ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
+    ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
+    die "can't locate arm-xlate.pl";
+
+    open STDOUT,"| \"$^X\" $xlate $flavour $output";
+} else {
+    open STDOUT,">$output";
+}
 
 $Xi="r0";	# argument block
 $Htbl="r1";
@@ -112,6 +124,11 @@ $code=<<___;
 .text
 .code	32
 
+#ifdef  __APPLE__
+#define ldrplb	ldrbpl
+#define ldrneb	ldrbne
+#endif
+
 .type	rem_4bit,%object
 .align	5
 rem_4bit:
@@ -326,9 +343,9 @@ $code.=<<___;
 .align	4
 gcm_gmult_neon:
 	sub		$Htbl,#16		@ point at H in GCM128_CTX
-	vld1.64		`&Dhi("$IN")`,[$Xi,:64]!@ load Xi
+	vld1.64		`&Dhi("$IN")`,[$Xi]!	@ load Xi
 	vmov.i32	$mod,#0xe1		@ our irreducible polynomial
-	vld1.64		`&Dlo("$IN")`,[$Xi,:64]!
+	vld1.64		`&Dlo("$IN")`,[$Xi]!
 	vshr.u64	$mod,#32
 	vldmia		$Htbl,{$Hhi-$Hlo}	@ load H
 	veor		$zero,$zero
@@ -349,9 +366,9 @@ gcm_gmult_neon:
 .type	gcm_ghash_neon,%function
 .align	4
 gcm_ghash_neon:
-	vld1.64		`&Dhi("$Z")`,[$Xi,:64]!	@ load Xi
+	vld1.64		`&Dhi("$Z")`,[$Xi]!	@ load Xi
 	vmov.i32	$mod,#0xe1		@ our irreducible polynomial
-	vld1.64		`&Dlo("$Z")`,[$Xi,:64]!
+	vld1.64		`&Dlo("$Z")`,[$Xi]!
 	vshr.u64	$mod,#32
 	vldmia		$Xi,{$Hhi-$Hlo}		@ load H
 	veor		$zero,$zero
@@ -410,8 +427,8 @@ gcm_ghash_neon:
 	vrev64.8	$Z,$Z
 #endif
 	sub		$Xi,#16	
-	vst1.64		`&Dhi("$Z")`,[$Xi,:64]!	@ write out Xi
-	vst1.64		`&Dlo("$Z")`,[$Xi,:64]
+	vst1.64		`&Dhi("$Z")`,[$Xi]!	@ write out Xi
+	vst1.64		`&Dlo("$Z")`,[$Xi]
 
 	bx	lr
 .size	gcm_ghash_neon,.-gcm_ghash_neon
diff --git a/crypto/sha/asm/sha1-armv4-large.pl b/crypto/sha/asm/sha1-armv4-large.pl
index 33da3e0e3c..6c0adb9911 100644
--- a/crypto/sha/asm/sha1-armv4-large.pl
+++ b/crypto/sha/asm/sha1-armv4-large.pl
@@ -52,8 +52,20 @@
 # Profiler-assisted and platform-specific optimization resulted in 10%
 # improvement on Cortex A8 core and 12.2 cycles per byte.
 
-while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {}
-open STDOUT,">$output";
+$flavour = shift;
+if ($flavour=~/^\w[\w\-]*\.\w+$/) { $output=$flavour; undef $flavour; }
+else { while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} }
+
+if ($flavour && $flavour ne "void") {
+    $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
+    ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
+    ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
+    die "can't locate arm-xlate.pl";
+
+    open STDOUT,"| \"$^X\" $xlate $flavour $output";
+} else {
+    open STDOUT,">$output";
+}
 
 $ctx="r0";
 $inp="r1";
diff --git a/crypto/sha/asm/sha256-armv4.pl b/crypto/sha/asm/sha256-armv4.pl
index 9c84e8d93c..252a583d06 100644
--- a/crypto/sha/asm/sha256-armv4.pl
+++ b/crypto/sha/asm/sha256-armv4.pl
@@ -23,8 +23,20 @@
 # Profiler-assisted and platform-specific optimization resulted in 16%
 # improvement on Cortex A8 core and ~17 cycles per processed byte.
 
-while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {}
-open STDOUT,">$output";
+$flavour = shift;
+if ($flavour=~/^\w[\w\-]*\.\w+$/) { $output=$flavour; undef $flavour; }
+else { while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} }
+
+if ($flavour && $flavour ne "void") {
+    $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
+    ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
+    ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
+    die "can't locate arm-xlate.pl";
+
+    open STDOUT,"| \"$^X\" $xlate $flavour $output";
+} else {
+    open STDOUT,">$output";
+}
 
 $ctx="r0";	$t0="r0";
 $inp="r1";	$t3="r1";
diff --git a/crypto/sha/asm/sha512-armv4.pl b/crypto/sha/asm/sha512-armv4.pl
index 7faf37b147..c032afdbca 100644
--- a/crypto/sha/asm/sha512-armv4.pl
+++ b/crypto/sha/asm/sha512-armv4.pl
@@ -38,8 +38,20 @@ $hi="HI";
 $lo="LO";
 # ====================================================================
 
-while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {}
-open STDOUT,">$output";
+$flavour = shift;
+if ($flavour=~/^\w[\w\-]*\.\w+$/) { $output=$flavour; undef $flavour; }
+else { while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} }
+
+if ($flavour && $flavour ne "void") {
+    $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
+    ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
+    ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
+    die "can't locate arm-xlate.pl";
+
+    open STDOUT,"| \"$^X\" $xlate $flavour $output";
+} else {
+    open STDOUT,">$output";
+}
 
 $ctx="r0";	# parameter block
 $inp="r1";
@@ -221,17 +233,21 @@ WORD64(0x4cc5d4be,0xcb3e42b6, 0x597f299c,0xfc657e2a)
 WORD64(0x5fcb6fab,0x3ad6faec, 0x6c44198c,0x4a475817)
 .size	K512,.-K512
 .LOPENSSL_armcap:
-.word	OPENSSL_armcap_P-sha512_block_data_order
+.word	OPENSSL_armcap_P-.Lsha512_block_data_order
 .skip	32-4
 
 .global	sha512_block_data_order
 .type	sha512_block_data_order,%function
 sha512_block_data_order:
+.Lsha512_block_data_order:
 	sub	r3,pc,#8		@ sha512_block_data_order
 	add	$len,$inp,$len,lsl#7	@ len to point at the end of inp
 #if __ARM_ARCH__>=7
 	ldr	r12,.LOPENSSL_armcap
 	ldr	r12,[r3,r12]		@ OPENSSL_armcap_P
+#ifdef	__APPLE__
+	ldr	r12,[r12]
+#endif
 	tst	r12,#1
 	bne	.LNEON
 #endif