#!/usr/bin/env perl
-$output=shift;
-$masm=1 if ($output =~ /\.asm/);
-open STDOUT,">$output" || die "can't open $output: $!";
-
-print<<___ if(defined($masm));
-_TEXT SEGMENT
-PUBLIC OPENSSL_rdtsc
-
-PUBLIC OPENSSL_atomic_add
-ALIGN 16
-OPENSSL_atomic_add PROC
- mov eax,DWORD PTR[rcx]
-\$Lspin: lea r8,DWORD PTR[rdx+rax]
-lock cmpxchg DWORD PTR[rcx],r8d
- jne \$Lspin
- mov eax,r8d
- cdqe
- ret
-OPENSSL_atomic_add ENDP
-
-PUBLIC OPENSSL_wipe_cpu
-ALIGN 16
-OPENSSL_wipe_cpu PROC
- pxor xmm0,xmm0
- pxor xmm1,xmm1
- pxor xmm2,xmm2
- pxor xmm3,xmm3
- pxor xmm4,xmm4
- pxor xmm5,xmm5
- xor rcx,rcx
- xor rdx,rdx
- xor r8,r8
- xor r9,r9
- xor r10,r10
- xor r11,r11
- lea rax,QWORD PTR[rsp+8]
- ret
-OPENSSL_wipe_cpu ENDP
-_TEXT ENDS
+$flavour = shift;
+$output = shift;
+if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
-CRT\$XIU SEGMENT
-EXTRN OPENSSL_cpuid_setup:PROC
-DQ OPENSSL_cpuid_setup
-CRT\$XIU ENDS
+$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
+
+$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
+( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
+( $xlate="${dir}perlasm/x86_64-xlate.pl" and -f $xlate) or
+die "can't locate x86_64-xlate.pl";
+
+open OUT,"| \"$^X\" $xlate $flavour $output";
+*STDOUT=*OUT;
+
+($arg1,$arg2,$arg3,$arg4)=$win64?("%rcx","%rdx","%r8", "%r9") : # Win64 order
+ ("%rdi","%rsi","%rdx","%rcx"); # Unix order
+
+print<<___;
+.extern OPENSSL_cpuid_setup
+.hidden OPENSSL_cpuid_setup
+.section .init
+ call OPENSSL_cpuid_setup
+
+.hidden OPENSSL_ia32cap_P
+.comm OPENSSL_ia32cap_P,16,4
-___
-print<<___ if(!defined($masm));
.text
.globl OPENSSL_atomic_add
-.type OPENSSL_atomic_add,\@function
+.type OPENSSL_atomic_add,\@abi-omnipotent
.align 16
OPENSSL_atomic_add:
- movl (%rdi),%eax
-.Lspin: leaq (%rsi,%rax),%r8
-lock; cmpxchgl %r8d,(%rdi)
+ movl ($arg1),%eax
+.Lspin: leaq ($arg2,%rax),%r8
+ .byte 0xf0 # lock
+ cmpxchgl %r8d,($arg1)
jne .Lspin
movl %r8d,%eax
- .byte 0x48,0x98
+ .byte 0x48,0x98 # cltq/cdqe
ret
.size OPENSSL_atomic_add,.-OPENSSL_atomic_add
-.globl OPENSSL_wipe_cpu
-.type OPENSSL_wipe_cpu,\@function
-.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
-
-.section .init
- call OPENSSL_cpuid_setup
-
-___
-
-$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
-open STDOUT,"| $^X $dir/perlasm/x86_64-xlate.pl $output";
-
-print<<___;
-.text
-
.globl OPENSSL_rdtsc
.type OPENSSL_rdtsc,\@abi-omnipotent
.align 16
.size OPENSSL_rdtsc,.-OPENSSL_rdtsc
.globl OPENSSL_ia32_cpuid
-.type OPENSSL_ia32_cpuid,\@abi-omnipotent
+.type OPENSSL_ia32_cpuid,\@function,1
.align 16
OPENSSL_ia32_cpuid:
- mov %rbx,%r8
+ mov %rbx,%r8 # save %rbx
xor %eax,%eax
+ mov %eax,8(%rdi) # clear 3rd word
cpuid
+ mov %eax,%r11d # max value for standard query level
+
xor %eax,%eax
cmp \$0x756e6547,%ebx # "Genu"
setne %al
or %eax,%r9d
cmp \$0x6c65746e,%ecx # "ntel"
setne %al
- or %eax,%r9d
+ 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 \$0x80000001,%eax
+ jb .Lintel
+ mov %eax,%r10d
+ mov \$0x80000001,%eax
+ cpuid
+ or %ecx,%r9d
+ and \$0x00000801,%r9d # isolate AMD XOP bit, 1<<11
+
+ cmp \$0x80000008,%r10d
+ 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 .Lgeneric
+ shr \$16,%ebx # number of logical processors
+ cmp %r10b,%bl
+ ja .Lgeneric
+ and \$0xefffffff,%edx # ~(1<<28)
+ jmp .Lgeneric
+
+.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
+
+ cmp \$7,%r11d
+ jb .Lnocacheinfo
+
+ mov \$7,%eax
+ xor %ecx,%ecx
+ cpuid
+ mov %ebx,8(%rdi)
+
+.Lnocacheinfo:
+ mov \$1,%eax
+ cpuid
+ and \$0xbfefffff,%edx # force reserved bits to 0
cmp \$0,%r9d
jne .Lnotintel
- or \$0x00100000,%edx # use reserved 20th bit to engage RC4_CHAR
+ or \$0x40000000,%edx # set reserved bit#30 on Intel CPUs
and \$15,%ah
cmp \$15,%ah # examine Family ID
- je .Lnotintel
- or \$0x40000000,%edx # use reserved bit to skip unrolled loop
+ jne .Lnotintel
+ or \$0x00100000,%edx # set reserved bit#20 to engage RC4_CHAR
.Lnotintel:
bt \$28,%edx # test hyper-threading bit
- jnc .Ldone
+ jnc .Lgeneric
+ and \$0xefffffff,%edx # ~(1<<28)
+ cmp \$0,%r10d
+ je .Lgeneric
+
+ or \$0x10000000,%edx # 1<<28
shr \$16,%ebx
cmp \$1,%bl # see if cache is shared
- ja .Ldone
+ ja .Lgeneric
and \$0xefffffff,%edx # ~(1<<28)
+.Lgeneric:
+ and \$0x00000800,%r9d # isolate AMD XOP flag
+ and \$0xfffff7ff,%ecx
+ or %ecx,%r9d # merge AMD XOP flag
+
+ mov %edx,%r10d # %r9d:%r10d is copy of %ecx:%edx
+ bt \$27,%r9d # check OSXSAVE bit
+ jnc .Lclear_avx
+ xor %ecx,%ecx # XCR0
+ .byte 0x0f,0x01,0xd0 # xgetbv
+ and \$6,%eax # isolate XMM and YMM state support
+ cmp \$6,%eax
+ je .Ldone
+.Lclear_avx:
+ mov \$0xefffe7ff,%eax # ~(1<<28|1<<12|1<<11)
+ and %eax,%r9d # clear AVX, FMA and AMD XOP bits
+ andl \$0xffffffdf,8(%rdi) # cleax AVX2, ~(1<<5)
.Ldone:
- shl \$32,%rcx
- mov %edx,%eax
- mov %r8,%rbx
- or %rcx,%rax
+ shl \$32,%r9
+ mov %r10d,%eax
+ mov %r8,%rbx # restore %rbx
+ or %r9,%rax
ret
.size OPENSSL_ia32_cpuid,.-OPENSSL_ia32_cpuid
.globl OPENSSL_cleanse
-.type OPENSSL_cleanse,\@function,2
+.type OPENSSL_cleanse,\@abi-omnipotent
.align 16
OPENSSL_cleanse:
xor %rax,%rax
- cmp \$15,%rsi
+ cmp \$15,$arg2
jae .Lot
+ cmp \$0,$arg2
+ je .Lret
.Little:
- mov %al,(%rdi)
- sub \$1,%rsi
- lea 1(%rdi),%rdi
+ mov %al,($arg1)
+ sub \$1,$arg2
+ lea 1($arg1),$arg1
jnz .Little
+.Lret:
ret
.align 16
.Lot:
- test \$7,%rdi
+ test \$7,$arg1
jz .Laligned
- mov %al,(%rdi)
- lea -1(%rsi),%rsi
- lea 1(%rdi),%rdi
+ mov %al,($arg1)
+ lea -1($arg2),$arg2
+ lea 1($arg1),$arg1
jmp .Lot
.Laligned:
- mov %rax,(%rdi)
- lea -8(%rsi),%rsi
- test \$-8,%rsi
- lea 8(%rdi),%rdi
+ mov %rax,($arg1)
+ lea -8($arg2),$arg2
+ test \$-8,$arg2
+ lea 8($arg1),$arg1
jnz .Laligned
- cmp \$0,%rsi
+ cmp \$0,$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
+___
+{
+my $out="%r10";
+my $cnt="%rcx";
+my $max="%r11";
+my $lasttick="%r8d";
+my $lastdiff="%r9d";
+my $redzone=win64?8:-8;
+
+print<<___;
+.globl OPENSSL_instrument_bus
+.type OPENSSL_instrument_bus,\@abi-omnipotent
+.align 16
+OPENSSL_instrument_bus:
+ mov $arg1,$out # tribute to Win64
+ mov $arg2,$cnt
+ mov $arg2,$max
+
+ rdtsc # collect 1st tick
+ mov %eax,$lasttick # lasttick = tick
+ mov \$0,$lastdiff # lastdiff = 0
+ clflush ($out)
+ .byte 0xf0 # lock
+ add $lastdiff,($out)
+ jmp .Loop
+.align 16
+.Loop: rdtsc
+ mov %eax,%edx
+ sub $lasttick,%eax
+ mov %edx,$lasttick
+ mov %eax,$lastdiff
+ clflush ($out)
+ .byte 0xf0 # lock
+ add %eax,($out)
+ lea 4($out),$out
+ sub \$1,$cnt
+ jnz .Loop
+
+ mov $max,%rax
+ ret
+.size OPENSSL_instrument_bus,.-OPENSSL_instrument_bus
+
+.globl OPENSSL_instrument_bus2
+.type OPENSSL_instrument_bus2,\@abi-omnipotent
+.align 16
+OPENSSL_instrument_bus2:
+ mov $arg1,$out # tribute to Win64
+ mov $arg2,$cnt
+ mov $arg3,$max
+ mov $cnt,$redzone(%rsp)
+
+ rdtsc # collect 1st tick
+ mov %eax,$lasttick # lasttick = tick
+ mov \$0,$lastdiff # lastdiff = 0
+
+ clflush ($out)
+ .byte 0xf0 # lock
+ add $lastdiff,($out)
+
+ rdtsc # collect 1st diff
+ mov %eax,%edx
+ sub $lasttick,%eax # diff
+ mov %edx,$lasttick # lasttick = tick
+ mov %eax,$lastdiff # lastdiff = diff
+.Loop2:
+ clflush ($out)
+ .byte 0xf0 # lock
+ add %eax,($out) # accumulate diff
+
+ sub \$1,$max
+ jz .Ldone2
+
+ rdtsc
+ mov %eax,%edx
+ sub $lasttick,%eax # diff
+ mov %edx,$lasttick # lasttick = tick
+ cmp $lastdiff,%eax
+ mov %eax,$lastdiff # lastdiff = diff
+ mov \$0,%edx
+ setne %dl
+ sub %rdx,$cnt # conditional --$cnt
+ lea ($out,%rdx,4),$out # conditional ++$out
+ jnz .Loop2
+
+.Ldone2:
+ mov $redzone(%rsp),%rax
+ sub $cnt,%rax
+ ret
+.size OPENSSL_instrument_bus2,.-OPENSSL_instrument_bus2
+___
+}
+
+print<<___;
+.globl OPENSSL_ia32_rdrand
+.type OPENSSL_ia32_rdrand,\@abi-omnipotent
+.align 16
+OPENSSL_ia32_rdrand:
+ mov \$8,%ecx
+.Loop_rdrand:
+ rdrand %rax
+ jc .Lbreak_rdrand
+ loop .Loop_rdrand
+.Lbreak_rdrand:
+ cmp \$0,%rax
+ cmove %rcx,%rax
+ ret
+.size OPENSSL_ia32_rdrand,.-OPENSSL_ia32_rdrand
+
+.globl OPENSSL_ia32_rdseed
+.type OPENSSL_ia32_rdseed,\@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
+ ret
+.size OPENSSL_ia32_rdseed,.-OPENSSL_ia32_rdseed
+___
+
close STDOUT; # flush
projects / openssl.git / blobdiff