2 # Copyright 2005-2018 The OpenSSL Project Authors. All Rights Reserved.
4 # Licensed under the Apache License 2.0 (the "License"). You may not use
5 # this file except in compliance with the License. You can obtain a copy
6 # in the file LICENSE in the source distribution or at
7 # https://www.openssl.org/source/license.html
10 # $output is the last argument if it looks like a file (it has an extension)
11 # $flavour is the first argument if it doesn't look like a file
12 $output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m
|\
.\w
+$| ?
pop : undef;
13 $flavour = $#ARGV >= 0 && $ARGV[0] !~ m
|\
.| ?
shift : undef;
15 $win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
17 $0 =~ m/(.*[\/\\])[^\
/\\]+$/; $dir=$1;
18 ( $xlate="${dir}x86_64-xlate.pl" and -f
$xlate ) or
19 ( $xlate="${dir}perlasm/x86_64-xlate.pl" and -f
$xlate) or
20 die "can't locate x86_64-xlate.pl";
22 open OUT
,"| \"$^X\" \"$xlate\" $flavour \"$output\""
23 or die "can't call $xlate: $!";
26 ($arg1,$arg2,$arg3,$arg4)=$win64?
("%rcx","%rdx","%r8", "%r9") : # Win64 order
27 ("%rdi","%rsi","%rdx","%rcx"); # Unix order
30 .extern OPENSSL_cpuid_setup
31 .hidden OPENSSL_cpuid_setup
33 call OPENSSL_cpuid_setup
35 .hidden OPENSSL_ia32cap_P
36 .comm OPENSSL_ia32cap_P
,16,4
40 .globl OPENSSL_atomic_add
41 .type OPENSSL_atomic_add
,\
@abi-omnipotent
47 .Lspin
: leaq
($arg2,%rax),%r8
52 .byte
0x48,0x98 # cltq/cdqe
55 .size OPENSSL_atomic_add
,.-OPENSSL_atomic_add
58 .type OPENSSL_rdtsc
,\
@abi-omnipotent
68 .size OPENSSL_rdtsc
,.-OPENSSL_rdtsc
70 .globl OPENSSL_ia32_cpuid
71 .type OPENSSL_ia32_cpuid
,\
@function,1
76 mov
%rbx,%r8 # save %rbx
77 .cfi_register
%rbx,%r8
80 mov
%rax,8(%rdi) # clear extended feature flags
82 mov
%eax,%r11d # max value for standard query level
85 cmp \
$0x756e6547,%ebx # "Genu"
88 cmp \
$0x49656e69,%edx # "ineI"
91 cmp \
$0x6c65746e,%ecx # "ntel"
93 or %eax,%r9d # 0 indicates Intel CPU
96 cmp \
$0x68747541,%ebx # "Auth"
99 cmp \
$0x69746E65,%edx # "enti"
102 cmp \
$0x444D4163,%ecx # "cAMD"
104 or %eax,%r10d # 0 indicates AMD CPU
108 mov \
$0x80000000,%eax
110 cmp \
$0x80000001,%eax
113 mov \
$0x80000001,%eax
116 and \
$0x00000801,%r9d # isolate AMD XOP bit, 1<<11
118 cmp \
$0x80000008,%r10d
121 mov \
$0x80000008,%eax
123 movzb
%cl,%r10 # number of cores - 1
124 inc
%r10 # number of cores
128 bt \
$28,%edx # test hyper-threading bit
130 shr \
$16,%ebx # number of logical processors
133 and \
$0xefffffff,%edx # ~(1<<28)
142 mov \
$0,%ecx # query L1D
146 and \
$0xfff,%r10d # number of cores -1 per L1D
151 movd
%eax,%xmm0 # put aside processor id
152 and \
$0xbfefffff,%edx # force reserved bits to 0
155 or \
$0x40000000,%edx # set reserved bit#30 on Intel CPUs
157 cmp \
$15,%ah # examine Family ID
159 or \
$0x00100000,%edx # set reserved bit#20 to engage RC4_CHAR
163 and \
$0x0fff0ff0,%eax
164 cmp \
$0x00050670,%eax # Knights Landing
166 cmp \
$0x00080650,%eax # Knights Mill (according to sde)
169 and \
$0xfbffffff,%ecx # clear XSAVE flag to mimic Silvermont
172 bt \
$28,%edx # test hyper-threading bit
174 and \
$0xefffffff,%edx # ~(1<<28)
178 or \
$0x10000000,%edx # 1<<28
180 cmp \
$1,%bl # see if cache is shared
182 and \
$0xefffffff,%edx # ~(1<<28)
184 and \
$0x00000800,%r9d # isolate AMD XOP flag
185 and \
$0xfffff7ff,%ecx
186 or %ecx,%r9d # merge AMD XOP flag
188 mov
%edx,%r10d # %r9d:%r10d is copy of %ecx:%edx
191 jb
.Lno_extended_info
195 bt \
$26,%r9d # check XSAVE bit, cleared on Knights
197 and \
$0xfff7ffff,%ebx # clear ADCX/ADOX flag
199 movd
%xmm0,%eax # restore processor id
200 and \
$0x0fff0ff0,%eax
201 cmp \
$0x00050650,%eax # Skylake-X
203 and \
$0xfffeffff,%ebx # ~(1<<16)
204 # suppress AVX512F flag on Skylake-X
206 mov
%ebx,8(%rdi) # save extended feature flags
210 bt \
$27,%r9d # check OSXSAVE bit
213 .byte
0x0f,0x01,0xd0 # xgetbv
214 and \
$0xe6,%eax # isolate XMM, YMM and ZMM state support
217 andl \
$0x3fdeffff,8(%rdi) # ~(1<<31|1<<30|1<<21|1<<16)
218 # clear AVX512F+BW+VL+FIMA, all of
219 # them are EVEX-encoded, which requires
220 # ZMM state support even if one uses
221 # only XMM and YMM :-(
222 and \
$6,%eax # isolate XMM and YMM state support
226 mov \
$0xefffe7ff,%eax # ~(1<<28|1<<12|1<<11)
227 and %eax,%r9d # clear AVX, FMA and AMD XOP bits
228 mov \
$0x3fdeffdf,%eax # ~(1<<31|1<<30|1<<21|1<<16|1<<5)
229 and %eax,8(%rdi) # clear AVX2 and AVX512* bits
233 mov
%r8,%rbx # restore %rbx
238 .size OPENSSL_ia32_cpuid
,.-OPENSSL_ia32_cpuid
240 .globl OPENSSL_cleanse
241 .type OPENSSL_cleanse
,\
@abi-omnipotent
276 .size OPENSSL_cleanse
,.-OPENSSL_cleanse
279 .type CRYPTO_memcmp
,\
@abi-omnipotent
313 .size CRYPTO_memcmp
,.-CRYPTO_memcmp
316 print<<___
if (!$win64);
317 .globl OPENSSL_wipe_cpu
318 .type OPENSSL_wipe_cpu
,\
@abi-omnipotent
350 .size OPENSSL_wipe_cpu
,.-OPENSSL_wipe_cpu
352 print<<___
if ($win64);
353 .globl OPENSSL_wipe_cpu
354 .type OPENSSL_wipe_cpu
,\
@abi-omnipotent
371 .size OPENSSL_wipe_cpu
,.-OPENSSL_wipe_cpu
379 my $redzone=win64?
8:-8;
382 .globl OPENSSL_instrument_bus
383 .type OPENSSL_instrument_bus
,\
@abi-omnipotent
385 OPENSSL_instrument_bus
:
388 mov
$arg1,$out # tribute to Win64
392 rdtsc
# collect 1st tick
393 mov
%eax,$lasttick # lasttick = tick
394 mov \
$0,$lastdiff # lastdiff = 0
415 .size OPENSSL_instrument_bus
,.-OPENSSL_instrument_bus
417 .globl OPENSSL_instrument_bus2
418 .type OPENSSL_instrument_bus2
,\
@abi-omnipotent
420 OPENSSL_instrument_bus2
:
423 mov
$arg1,$out # tribute to Win64
426 mov
$cnt,$redzone(%rsp)
428 rdtsc
# collect 1st tick
429 mov
%eax,$lasttick # lasttick = tick
430 mov \
$0,$lastdiff # lastdiff = 0
436 rdtsc
# collect 1st diff
438 sub $lasttick,%eax # diff
439 mov
%edx,$lasttick # lasttick = tick
440 mov
%eax,$lastdiff # lastdiff = diff
444 add
%eax,($out) # accumulate diff
451 sub $lasttick,%eax # diff
452 mov
%edx,$lasttick # lasttick = tick
454 mov
%eax,$lastdiff # lastdiff = diff
457 sub %rdx,$cnt # conditional --$cnt
458 lea
($out,%rdx,4),$out # conditional ++$out
462 mov
$redzone(%rsp),%rax
466 .size OPENSSL_instrument_bus2
,.-OPENSSL_instrument_bus2
473 .globl OPENSSL_ia32_
${rdop
}_bytes
474 .type OPENSSL_ia32_
${rdop
}_bytes
,\
@abi-omnipotent
476 OPENSSL_ia32_
${rdop
}_bytes
:
479 xor %rax, %rax # return value
481 je
.Ldone_
${rdop
}_bytes
486 jc
.Lbreak_
${rdop
}_bytes
488 jnz
.Loop_
${rdop
}_bytes
489 jmp
.Ldone_
${rdop
}_bytes
492 .Lbreak_
${rdop
}_bytes
:
494 jb
.Ltail_
${rdop
}_bytes
499 jz
.Ldone_
${rdop
}_bytes
501 jmp
.Loop_
${rdop
}_bytes
504 .Ltail_
${rdop
}_bytes
:
510 jnz
.Ltail_
${rdop
}_bytes
512 .Ldone_
${rdop
}_bytes
:
513 xor %r10,%r10 # Clear sensitive data from register
516 .size OPENSSL_ia32_
${rdop
}_bytes
,.-OPENSSL_ia32_
${rdop
}_bytes
519 gen_random
("rdrand");
520 gen_random
("rdseed");
522 close STDOUT
or die "error closing STDOUT: $!"; # flush