Initial import

1 files changed, 232 insertions, 0 deletions

diff --git a/openssl/crypto/x86_64cpuid.pl b/openssl/crypto/x86_64cpuid.pl
new file mode 100644
index 00000000..c96821a3
--- /dev/null
+++ b/openssl/crypto/x86_64cpuid.pl
@@ -0,0 +1,232 @@
+#!/usr/bin/env perl
+
+$flavour = shift;
+$output  = shift;
+if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
+
+$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
+
+$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
+open STDOUT,"| $^X ${dir}perlasm/x86_64-xlate.pl $flavour $output";
+
+if ($win64)	{ $arg1="%rcx"; $arg2="%rdx"; }
+else		{ $arg1="%rdi"; $arg2="%rsi"; }
+print<<___;
+.extern		OPENSSL_cpuid_setup
+.section	.init
+	call	OPENSSL_cpuid_setup
+
+.text
+
+.globl	OPENSSL_atomic_add
+.type	OPENSSL_atomic_add,\@abi-omnipotent
+.align	16
+OPENSSL_atomic_add:
+	movl	($arg1),%eax
+.Lspin:	leaq	($arg2,%rax),%r8
+	.byte	0xf0		# lock
+	cmpxchgl	%r8d,($arg1)
+	jne	.Lspin
+	movl	%r8d,%eax
+	.byte	0x48,0x98	# cltq/cdqe
+	ret
+.size	OPENSSL_atomic_add,.-OPENSSL_atomic_add
+
+.globl	OPENSSL_rdtsc
+.type	OPENSSL_rdtsc,\@abi-omnipotent
+.align	16
+OPENSSL_rdtsc:
+	rdtsc
+	shl	\$32,%rdx
+	or	%rdx,%rax
+	ret
+.size	OPENSSL_rdtsc,.-OPENSSL_rdtsc
+
+.globl	OPENSSL_ia32_cpuid
+.type	OPENSSL_ia32_cpuid,\@abi-omnipotent
+.align	16
+OPENSSL_ia32_cpuid:
+	mov	%rbx,%r8
+
+	xor	%eax,%eax
+	cpuid
+	mov	%eax,%r11d		# max value for standard query level
+
+	xor	%eax,%eax
+	cmp	\$0x756e6547,%ebx	# "Genu"
+	setne	%al
+	mov	%eax,%r9d
+	cmp	\$0x49656e69,%edx	# "ineI"
+	setne	%al
+	or	%eax,%r9d
+	cmp	\$0x6c65746e,%ecx	# "ntel"
+	setne	%al
+	or	%eax,%r9d		# 0 indicates Intel CPU
+	jz	.Lintel
+
+	cmp	\$0x68747541,%ebx	# "Auth"
+	setne	%al
+	mov	%eax,%r10d
+	cmp	\$0x69746E65,%edx	# "enti"
+	setne	%al
+	or	%eax,%r10d
+	cmp	\$0x444D4163,%ecx	# "cAMD"
+	setne	%al
+	or	%eax,%r10d		# 0 indicates AMD CPU
+	jnz	.Lintel
+
+	# AMD specific
+	mov	\$0x80000000,%eax
+	cpuid
+	cmp	\$0x80000008,%eax
+	jb	.Lintel
+
+	mov	\$0x80000008,%eax
+	cpuid
+	movzb	%cl,%r10		# number of cores - 1
+	inc	%r10			# number of cores
+
+	mov	\$1,%eax
+	cpuid
+	bt	\$28,%edx		# test hyper-threading bit
+	jnc	.Ldone
+	shr	\$16,%ebx		# number of logical processors
+	cmp	%r10b,%bl
+	ja	.Ldone
+	and	\$0xefffffff,%edx	# ~(1<<28)
+	jmp	.Ldone
+
+.Lintel:
+	cmp	\$4,%r11d
+	mov	\$-1,%r10d
+	jb	.Lnocacheinfo
+
+	mov	\$4,%eax
+	mov	\$0,%ecx		# query L1D
+	cpuid
+	mov	%eax,%r10d
+	shr	\$14,%r10d
+	and	\$0xfff,%r10d		# number of cores -1 per L1D
+
+.Lnocacheinfo:
+	mov	\$1,%eax
+	cpuid
+	cmp	\$0,%r9d
+	jne	.Lnotintel
+	or	\$0x00100000,%edx	# use reserved 20th bit to engage RC4_CHAR
+	and	\$15,%ah
+	cmp	\$15,%ah		# examine Family ID
+	je	.Lnotintel
+	or	\$0x40000000,%edx	# use reserved bit to skip unrolled loop
+.Lnotintel:
+	bt	\$28,%edx		# test hyper-threading bit
+	jnc	.Ldone
+	and	\$0xefffffff,%edx	# ~(1<<28)
+	cmp	\$0,%r10d
+	je	.Ldone
+
+	or	\$0x10000000,%edx	# 1<<28
+	shr	\$16,%ebx
+	cmp	\$1,%bl			# see if cache is shared
+	ja	.Ldone
+	and	\$0xefffffff,%edx	# ~(1<<28)
+.Ldone:
+	shl	\$32,%rcx
+	mov	%edx,%eax
+	mov	%r8,%rbx
+	or	%rcx,%rax
+	ret
+.size	OPENSSL_ia32_cpuid,.-OPENSSL_ia32_cpuid
+
+.globl  OPENSSL_cleanse
+.type   OPENSSL_cleanse,\@abi-omnipotent
+.align  16
+OPENSSL_cleanse:
+	xor	%rax,%rax
+	cmp	\$15,$arg2
+	jae	.Lot
+	cmp	\$0,$arg2
+	je	.Lret
+.Little:
+	mov	%al,($arg1)
+	sub	\$1,$arg2
+	lea	1($arg1),$arg1
+	jnz	.Little
+.Lret:
+	ret
+.align	16
+.Lot:
+	test	\$7,$arg1
+	jz	.Laligned
+	mov	%al,($arg1)
+	lea	-1($arg2),$arg2
+	lea	1($arg1),$arg1
+	jmp	.Lot
+.Laligned:
+	mov	%rax,($arg1)
+	lea	-8($arg2),$arg2
+	test	\$-8,$arg2
+	lea	8($arg1),$arg1
+	jnz	.Laligned
+	cmp	\$0,$arg2
+	jne	.Little
+	ret
+.size	OPENSSL_cleanse,.-OPENSSL_cleanse
+___
+
+print<<___ if (!$win64);
+.globl	OPENSSL_wipe_cpu
+.type	OPENSSL_wipe_cpu,\@abi-omnipotent
+.align	16
+OPENSSL_wipe_cpu:
+	pxor	%xmm0,%xmm0
+	pxor	%xmm1,%xmm1
+	pxor	%xmm2,%xmm2
+	pxor	%xmm3,%xmm3
+	pxor	%xmm4,%xmm4
+	pxor	%xmm5,%xmm5
+	pxor	%xmm6,%xmm6
+	pxor	%xmm7,%xmm7
+	pxor	%xmm8,%xmm8
+	pxor	%xmm9,%xmm9
+	pxor	%xmm10,%xmm10
+	pxor	%xmm11,%xmm11
+	pxor	%xmm12,%xmm12
+	pxor	%xmm13,%xmm13
+	pxor	%xmm14,%xmm14
+	pxor	%xmm15,%xmm15
+	xorq	%rcx,%rcx
+	xorq	%rdx,%rdx
+	xorq	%rsi,%rsi
+	xorq	%rdi,%rdi
+	xorq	%r8,%r8
+	xorq	%r9,%r9
+	xorq	%r10,%r10
+	xorq	%r11,%r11
+	leaq	8(%rsp),%rax
+	ret
+.size	OPENSSL_wipe_cpu,.-OPENSSL_wipe_cpu
+___
+print<<___ if ($win64);
+.globl	OPENSSL_wipe_cpu
+.type	OPENSSL_wipe_cpu,\@abi-omnipotent
+.align	16
+OPENSSL_wipe_cpu:
+	pxor	%xmm0,%xmm0
+	pxor	%xmm1,%xmm1
+	pxor	%xmm2,%xmm2
+	pxor	%xmm3,%xmm3
+	pxor	%xmm4,%xmm4
+	pxor	%xmm5,%xmm5
+	xorq	%rcx,%rcx
+	xorq	%rdx,%rdx
+	xorq	%r8,%r8
+	xorq	%r9,%r9
+	xorq	%r10,%r10
+	xorq	%r11,%r11
+	leaq	8(%rsp),%rax
+	ret
+.size	OPENSSL_wipe_cpu,.-OPENSSL_wipe_cpu
+___
+
+close STDOUT;	# flush