X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fx86_64cpuid.pl;h=6cb152148b5b6eae2d61da23e18dd442e3edfff5;hp=450550bfb5f610e19518b21cd831e2af0181712b;hb=0a5fe2eb94ad7085fee59c3908b546af7530c9d3;hpb=e0a651945cb5a70a2abd9902c0fd3e9759d35867

diff --git a/crypto/x86_64cpuid.pl b/crypto/x86_64cpuid.pl
index 450550bfb5..6cb152148b 100644
--- a/crypto/x86_64cpuid.pl
+++ b/crypto/x86_64cpuid.pl
@@ -18,7 +18,7 @@ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
 ( $xlate="${dir}perlasm/x86_64-xlate.pl" and -f $xlate) or
 die "can't locate x86_64-xlate.pl";
 
-open OUT,"| \"$^X\" $xlate $flavour $output";
+open OUT,"| \"$^X\" \"$xlate\" $flavour \"$output\"";
 *STDOUT=*OUT;
 
 ($arg1,$arg2,$arg3,$arg4)=$win64?("%rcx","%rdx","%r8", "%r9") :	# Win64 order
@@ -224,6 +224,28 @@ OPENSSL_cleanse:
 	jne	.Little
 	ret
 .size	OPENSSL_cleanse,.-OPENSSL_cleanse
+
+.globl  CRYPTO_memcmp
+.type   CRYPTO_memcmp,\@abi-omnipotent
+.align  16
+CRYPTO_memcmp:
+	xor	%rax,%rax
+	xor	%r10,%r10
+	cmp	\$0,$arg3
+	je	.Lno_data
+.Loop_cmp:
+	mov	($arg1),%r10b
+	lea	1($arg1),$arg1
+	xor	($arg2),%r10b
+	lea	1($arg2),$arg2
+	or	%r10b,%al
+	dec	$arg3
+	jnz	.Loop_cmp
+	neg	%rax
+	shr	\$63,%rax
+.Lno_data:
+	ret
+.size	CRYPTO_memcmp,.-CRYPTO_memcmp
 ___
 
 print<<___ if (!$win64);
@@ -371,36 +393,67 @@ OPENSSL_instrument_bus2:
 ___
 }
 
+sub gen_random {
+my $rdop = shift;
 print<<___;
-.globl	OPENSSL_ia32_rdrand
-.type	OPENSSL_ia32_rdrand,\@abi-omnipotent
+.globl	OPENSSL_ia32_${rdop}
+.type	OPENSSL_ia32_${rdop},\@abi-omnipotent
 .align	16
-OPENSSL_ia32_rdrand:
+OPENSSL_ia32_${rdop}:
 	mov	\$8,%ecx
-.Loop_rdrand:
-	rdrand	%rax
-	jc	.Lbreak_rdrand
-	loop	.Loop_rdrand
-.Lbreak_rdrand:
+.Loop_${rdop}:
+	${rdop}	%rax
+	jc	.Lbreak_${rdop}
+	loop	.Loop_${rdop}
+.Lbreak_${rdop}:
 	cmp	\$0,%rax
 	cmove	%rcx,%rax
 	ret
-.size	OPENSSL_ia32_rdrand,.-OPENSSL_ia32_rdrand
+.size	OPENSSL_ia32_${rdop},.-OPENSSL_ia32_${rdop}
 
-.globl	OPENSSL_ia32_rdseed
-.type	OPENSSL_ia32_rdseed,\@abi-omnipotent
+.globl	OPENSSL_ia32_${rdop}_bytes
+.type	OPENSSL_ia32_${rdop}_bytes,\@abi-omnipotent
 .align	16
-OPENSSL_ia32_rdseed:
-	mov	\$8,%ecx
-.Loop_rdseed:
-	rdseed	%rax
-	jc	.Lbreak_rdseed
-	loop	.Loop_rdseed
-.Lbreak_rdseed:
-	cmp	\$0,%rax
-	cmove	%rcx,%rax
+OPENSSL_ia32_${rdop}_bytes:
+	xor	%rax, %rax	# return value
+	cmp	\$0,$arg2
+	je	.Ldone_${rdop}_bytes
+
+	mov	\$8,%r11
+.Loop_${rdop}_bytes:
+	${rdop}	%r10
+	jc	.Lbreak_${rdop}_bytes
+	dec	%r11
+	jnz	.Loop_${rdop}_bytes
+	jmp	.Ldone_${rdop}_bytes
+
+.align	16
+.Lbreak_${rdop}_bytes:
+	cmp	\$8,$arg2
+	jb	.Ltail_${rdop}_bytes
+	mov	%r10,($arg1)
+	lea	8($arg1),$arg1
+	add	\$8,%rax
+	sub	\$8,$arg2
+	jz	.Ldone_${rdop}_bytes
+	mov	\$8,%r11
+	jmp	.Loop_${rdop}_bytes
+
+.align	16
+.Ltail_${rdop}_bytes:
+	mov	%r10b,($arg1)
+	lea	1($arg1),$arg1
+	inc	%rax
+	shr	\$8,%r8
+	dec	$arg2
+	jnz	.Ltail_${rdop}_bytes
+
+.Ldone_${rdop}_bytes:
 	ret
-.size	OPENSSL_ia32_rdseed,.-OPENSSL_ia32_rdseed
+.size	OPENSSL_ia32_${rdop}_bytes,.-OPENSSL_ia32_${rdop}_bytes
 ___
+}
+gen_random("rdrand");
+gen_random("rdseed");
 
 close STDOUT;	# flush