#! /usr/bin/env perl
-# Copyright 2005-2016 The OpenSSL Project Authors. All Rights Reserved.
+# Copyright 2005-2020 The OpenSSL Project Authors. All Rights Reserved.
#
-# Licensed under the OpenSSL license (the "License"). You may not use
+# Licensed under the Apache License 2.0 (the "License"). You may not use
# this file except in compliance with the License. You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html
-$flavour = shift;
-$output = shift;
-if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
+# $output is the last argument if it looks like a file (it has an extension)
+# $flavour is the first argument if it doesn't look like a file
+$output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef;
+$flavour = $#ARGV >= 0 && $ARGV[0] !~ m|\.| ? shift : undef;
$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
( $xlate="${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\""
+ or die "can't call $xlate: $!";
*STDOUT=*OUT;
($arg1,$arg2,$arg3,$arg4)=$win64?("%rcx","%rdx","%r8", "%r9") : # Win64 order
.type OPENSSL_atomic_add,\@abi-omnipotent
.align 16
OPENSSL_atomic_add:
+.cfi_startproc
+ endbranch
movl ($arg1),%eax
.Lspin: leaq ($arg2,%rax),%r8
.byte 0xf0 # lock
movl %r8d,%eax
.byte 0x48,0x98 # cltq/cdqe
ret
+.cfi_endproc
.size OPENSSL_atomic_add,.-OPENSSL_atomic_add
.globl OPENSSL_rdtsc
.type OPENSSL_rdtsc,\@abi-omnipotent
.align 16
OPENSSL_rdtsc:
+.cfi_startproc
+ endbranch
rdtsc
shl \$32,%rdx
or %rdx,%rax
ret
+.cfi_endproc
.size OPENSSL_rdtsc,.-OPENSSL_rdtsc
.globl OPENSSL_ia32_cpuid
.align 16
OPENSSL_ia32_cpuid:
.cfi_startproc
+ endbranch
mov %rbx,%r8 # save %rbx
.cfi_register %rbx,%r8
xor %eax,%eax
- mov %eax,8(%rdi) # clear 3rd word
+ mov %rax,8(%rdi) # clear extended feature flags
cpuid
mov %eax,%r11d # max value for standard query level
shr \$14,%r10d
and \$0xfff,%r10d # number of cores -1 per L1D
- cmp \$7,%r11d
- jb .Lnocacheinfo
-
- mov \$7,%eax
- xor %ecx,%ecx
- cpuid
- mov %ebx,8(%rdi)
-
.Lnocacheinfo:
mov \$1,%eax
cpuid
+ movd %eax,%xmm0 # put aside processor id
and \$0xbfefffff,%edx # force reserved bits to 0
cmp \$0,%r9d
jne .Lnotintel
or \$0x40000000,%edx # set reserved bit#30 on Intel CPUs
and \$15,%ah
cmp \$15,%ah # examine Family ID
- jne .Lnotintel
+ jne .LnotP4
or \$0x00100000,%edx # set reserved bit#20 to engage RC4_CHAR
+.LnotP4:
+ cmp \$6,%ah
+ jne .Lnotintel
+ and \$0x0fff0ff0,%eax
+ cmp \$0x00050670,%eax # Knights Landing
+ je .Lknights
+ cmp \$0x00080650,%eax # Knights Mill (according to sde)
+ jne .Lnotintel
+.Lknights:
+ and \$0xfbffffff,%ecx # clear XSAVE flag to mimic Silvermont
+
.Lnotintel:
bt \$28,%edx # test hyper-threading bit
jnc .Lgeneric
or %ecx,%r9d # merge AMD XOP flag
mov %edx,%r10d # %r9d:%r10d is copy of %ecx:%edx
+
+ cmp \$7,%r11d
+ jb .Lno_extended_info
+ mov \$7,%eax
+ xor %ecx,%ecx
+ cpuid
+ bt \$26,%r9d # check XSAVE bit, cleared on Knights
+ jc .Lnotknights
+ and \$0xfff7ffff,%ebx # clear ADCX/ADOX flag
+.Lnotknights:
+ movd %xmm0,%eax # restore processor id
+ and \$0x0fff0ff0,%eax
+ cmp \$0x00050650,%eax # Skylake-X
+ jne .Lnotskylakex
+ and \$0xfffeffff,%ebx # ~(1<<16)
+ # suppress AVX512F flag on Skylake-X
+.Lnotskylakex:
+ mov %ebx,8(%rdi) # save extended feature flags
+ mov %ecx,12(%rdi)
+.Lno_extended_info:
+
bt \$27,%r9d # check OSXSAVE bit
jnc .Lclear_avx
xor %ecx,%ecx # XCR0
and \$0xe6,%eax # isolate XMM, YMM and ZMM state support
cmp \$0xe6,%eax
je .Ldone
- andl \$0xfffeffff,8(%rdi) # clear AVX512F, ~(1<<16)
- # note that we don't touch other AVX512
- # extensions, because they can be used
- # with YMM (without opmasking though)
+ andl \$0x3fdeffff,8(%rdi) # ~(1<<31|1<<30|1<<21|1<<16)
+ # clear AVX512F+BW+VL+FIMA, all of
+ # them are EVEX-encoded, which requires
+ # ZMM state support even if one uses
+ # only XMM and YMM :-(
and \$6,%eax # isolate XMM and YMM state support
cmp \$6,%eax
je .Ldone
mov \$0xefffe7ff,%eax # ~(1<<28|1<<12|1<<11)
and %eax,%r9d # clear AVX, FMA and AMD XOP bits
mov \$0x3fdeffdf,%eax # ~(1<<31|1<<30|1<<21|1<<16|1<<5)
- and %eax,8(%rdi) # cleax AVX2 and AVX512* bits
+ and %eax,8(%rdi) # clear AVX2 and AVX512* bits
.Ldone:
shl \$32,%r9
mov %r10d,%eax
.type OPENSSL_cleanse,\@abi-omnipotent
.align 16
OPENSSL_cleanse:
+.cfi_startproc
+ endbranch
xor %rax,%rax
cmp \$15,$arg2
jae .Lot
cmp \$0,$arg2
jne .Little
ret
+.cfi_endproc
.size OPENSSL_cleanse,.-OPENSSL_cleanse
.globl CRYPTO_memcmp
.type CRYPTO_memcmp,\@abi-omnipotent
.align 16
CRYPTO_memcmp:
+.cfi_startproc
+ endbranch
xor %rax,%rax
xor %r10,%r10
cmp \$0,$arg3
je .Lno_data
+ cmp \$16,$arg3
+ jne .Loop_cmp
+ mov ($arg1),%r10
+ mov 8($arg1),%r11
+ mov \$1,$arg3
+ xor ($arg2),%r10
+ xor 8($arg2),%r11
+ or %r11,%r10
+ cmovnz $arg3,%rax
+ ret
+
+.align 16
.Loop_cmp:
mov ($arg1),%r10b
lea 1($arg1),$arg1
shr \$63,%rax
.Lno_data:
ret
+.cfi_endproc
.size CRYPTO_memcmp,.-CRYPTO_memcmp
___
.type OPENSSL_wipe_cpu,\@abi-omnipotent
.align 16
OPENSSL_wipe_cpu:
+.cfi_startproc
+ endbranch
pxor %xmm0,%xmm0
pxor %xmm1,%xmm1
pxor %xmm2,%xmm2
xorq %r11,%r11
leaq 8(%rsp),%rax
ret
+.cfi_endproc
.size OPENSSL_wipe_cpu,.-OPENSSL_wipe_cpu
___
print<<___ if ($win64);
.type OPENSSL_instrument_bus,\@abi-omnipotent
.align 16
OPENSSL_instrument_bus:
+.cfi_startproc
+ endbranch
mov $arg1,$out # tribute to Win64
mov $arg2,$cnt
mov $arg2,$max
mov $max,%rax
ret
+.cfi_endproc
.size OPENSSL_instrument_bus,.-OPENSSL_instrument_bus
.globl OPENSSL_instrument_bus2
.type OPENSSL_instrument_bus2,\@abi-omnipotent
.align 16
OPENSSL_instrument_bus2:
+.cfi_startproc
+ endbranch
mov $arg1,$out # tribute to Win64
mov $arg2,$cnt
mov $arg3,$max
mov $redzone(%rsp),%rax
sub $cnt,%rax
ret
+.cfi_endproc
.size OPENSSL_instrument_bus2,.-OPENSSL_instrument_bus2
___
}
sub gen_random {
my $rdop = shift;
print<<___;
-.globl OPENSSL_ia32_${rdop}
-.type OPENSSL_ia32_${rdop},\@abi-omnipotent
-.align 16
-OPENSSL_ia32_${rdop}:
- mov \$8,%ecx
-.Loop_${rdop}:
- ${rdop} %rax
- jc .Lbreak_${rdop}
- loop .Loop_${rdop}
-.Lbreak_${rdop}:
- cmp \$0,%rax
- cmove %rcx,%rax
- ret
-.size OPENSSL_ia32_${rdop},.-OPENSSL_ia32_${rdop}
-
.globl OPENSSL_ia32_${rdop}_bytes
.type OPENSSL_ia32_${rdop}_bytes,\@abi-omnipotent
.align 16
OPENSSL_ia32_${rdop}_bytes:
+.cfi_startproc
+ endbranch
xor %rax, %rax # return value
cmp \$0,$arg2
je .Ldone_${rdop}_bytes
mov %r10b,($arg1)
lea 1($arg1),$arg1
inc %rax
- shr \$8,%r8
+ shr \$8,%r10
dec $arg2
jnz .Ltail_${rdop}_bytes
.Ldone_${rdop}_bytes:
+ xor %r10,%r10 # Clear sensitive data from register
ret
+.cfi_endproc
.size OPENSSL_ia32_${rdop}_bytes,.-OPENSSL_ia32_${rdop}_bytes
___
}
gen_random("rdrand");
gen_random("rdseed");
-close STDOUT; # flush
+close STDOUT or die "error closing STDOUT: $!"; # flush
projects / openssl.git / blobdiff