mirror of
https://github.com/openssl/openssl.git
synced 2024-12-25 09:53:52 +08:00
527 lines
13 KiB
Raku
527 lines
13 KiB
Raku
#! /usr/bin/env perl
|
|
# Copyright 2004-2016 The OpenSSL Project Authors. All Rights Reserved.
|
|
#
|
|
# Licensed under the OpenSSL license (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
|
|
|
|
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
|
|
push(@INC, "${dir}perlasm", "perlasm");
|
|
require "x86asm.pl";
|
|
|
|
$output = pop;
|
|
open OUT,">$output";
|
|
*STDOUT=*OUT;
|
|
|
|
&asm_init($ARGV[0],"x86cpuid");
|
|
|
|
for (@ARGV) { $sse2=1 if (/-DOPENSSL_IA32_SSE2/); }
|
|
|
|
&function_begin("OPENSSL_ia32_cpuid");
|
|
&xor ("edx","edx");
|
|
&pushf ();
|
|
&pop ("eax");
|
|
&mov ("ecx","eax");
|
|
&xor ("eax",1<<21);
|
|
&push ("eax");
|
|
&popf ();
|
|
&pushf ();
|
|
&pop ("eax");
|
|
&xor ("ecx","eax");
|
|
&xor ("eax","eax");
|
|
&bt ("ecx",21);
|
|
&jnc (&label("nocpuid"));
|
|
&mov ("esi",&wparam(0));
|
|
&mov (&DWP(8,"esi"),"eax"); # clear 3rd word
|
|
&cpuid ();
|
|
&mov ("edi","eax"); # max value for standard query level
|
|
|
|
&xor ("eax","eax");
|
|
&cmp ("ebx",0x756e6547); # "Genu"
|
|
&setne (&LB("eax"));
|
|
&mov ("ebp","eax");
|
|
&cmp ("edx",0x49656e69); # "ineI"
|
|
&setne (&LB("eax"));
|
|
&or ("ebp","eax");
|
|
&cmp ("ecx",0x6c65746e); # "ntel"
|
|
&setne (&LB("eax"));
|
|
&or ("ebp","eax"); # 0 indicates Intel CPU
|
|
&jz (&label("intel"));
|
|
|
|
&cmp ("ebx",0x68747541); # "Auth"
|
|
&setne (&LB("eax"));
|
|
&mov ("esi","eax");
|
|
&cmp ("edx",0x69746E65); # "enti"
|
|
&setne (&LB("eax"));
|
|
&or ("esi","eax");
|
|
&cmp ("ecx",0x444D4163); # "cAMD"
|
|
&setne (&LB("eax"));
|
|
&or ("esi","eax"); # 0 indicates AMD CPU
|
|
&jnz (&label("intel"));
|
|
|
|
# AMD specific
|
|
&mov ("eax",0x80000000);
|
|
&cpuid ();
|
|
&cmp ("eax",0x80000001);
|
|
&jb (&label("intel"));
|
|
&mov ("esi","eax");
|
|
&mov ("eax",0x80000001);
|
|
&cpuid ();
|
|
&or ("ebp","ecx");
|
|
&and ("ebp",1<<11|1); # isolate XOP bit
|
|
&cmp ("esi",0x80000008);
|
|
&jb (&label("intel"));
|
|
|
|
&mov ("eax",0x80000008);
|
|
&cpuid ();
|
|
&movz ("esi",&LB("ecx")); # number of cores - 1
|
|
&inc ("esi"); # number of cores
|
|
|
|
&mov ("eax",1);
|
|
&xor ("ecx","ecx");
|
|
&cpuid ();
|
|
&bt ("edx",28);
|
|
&jnc (&label("generic"));
|
|
&shr ("ebx",16);
|
|
&and ("ebx",0xff);
|
|
&cmp ("ebx","esi");
|
|
&ja (&label("generic"));
|
|
&and ("edx",0xefffffff); # clear hyper-threading bit
|
|
&jmp (&label("generic"));
|
|
|
|
&set_label("intel");
|
|
&cmp ("edi",7);
|
|
&jb (&label("cacheinfo"));
|
|
|
|
&mov ("esi",&wparam(0));
|
|
&mov ("eax",7);
|
|
&xor ("ecx","ecx");
|
|
&cpuid ();
|
|
&mov (&DWP(8,"esi"),"ebx");
|
|
|
|
&set_label("cacheinfo");
|
|
&cmp ("edi",4);
|
|
&mov ("edi",-1);
|
|
&jb (&label("nocacheinfo"));
|
|
|
|
&mov ("eax",4);
|
|
&mov ("ecx",0); # query L1D
|
|
&cpuid ();
|
|
&mov ("edi","eax");
|
|
&shr ("edi",14);
|
|
&and ("edi",0xfff); # number of cores -1 per L1D
|
|
|
|
&set_label("nocacheinfo");
|
|
&mov ("eax",1);
|
|
&xor ("ecx","ecx");
|
|
&cpuid ();
|
|
&and ("edx",0xbfefffff); # force reserved bits #20, #30 to 0
|
|
&cmp ("ebp",0);
|
|
&jne (&label("notintel"));
|
|
&or ("edx",1<<30); # set reserved bit#30 on Intel CPUs
|
|
&and (&HB("eax"),15); # familiy ID
|
|
&cmp (&HB("eax"),15); # P4?
|
|
&jne (&label("notintel"));
|
|
&or ("edx",1<<20); # set reserved bit#20 to engage RC4_CHAR
|
|
&set_label("notintel");
|
|
&bt ("edx",28); # test hyper-threading bit
|
|
&jnc (&label("generic"));
|
|
&and ("edx",0xefffffff);
|
|
&cmp ("edi",0);
|
|
&je (&label("generic"));
|
|
|
|
&or ("edx",0x10000000);
|
|
&shr ("ebx",16);
|
|
&cmp (&LB("ebx"),1);
|
|
&ja (&label("generic"));
|
|
&and ("edx",0xefffffff); # clear hyper-threading bit if not
|
|
|
|
&set_label("generic");
|
|
&and ("ebp",1<<11); # isolate AMD XOP flag
|
|
&and ("ecx",0xfffff7ff); # force 11th bit to 0
|
|
&mov ("esi","edx");
|
|
&or ("ebp","ecx"); # merge AMD XOP flag
|
|
|
|
&bt ("ecx",27); # check OSXSAVE bit
|
|
&jnc (&label("clear_avx"));
|
|
&xor ("ecx","ecx");
|
|
&data_byte(0x0f,0x01,0xd0); # xgetbv
|
|
&and ("eax",6);
|
|
&cmp ("eax",6);
|
|
&je (&label("done"));
|
|
&cmp ("eax",2);
|
|
&je (&label("clear_avx"));
|
|
&set_label("clear_xmm");
|
|
&and ("ebp",0xfdfffffd); # clear AESNI and PCLMULQDQ bits
|
|
&and ("esi",0xfeffffff); # clear FXSR
|
|
&set_label("clear_avx");
|
|
&and ("ebp",0xefffe7ff); # clear AVX, FMA and AMD XOP bits
|
|
&mov ("edi",&wparam(0));
|
|
&and (&DWP(8,"edi"),0xffffffdf); # clear AVX2
|
|
&set_label("done");
|
|
&mov ("eax","esi");
|
|
&mov ("edx","ebp");
|
|
&set_label("nocpuid");
|
|
&function_end("OPENSSL_ia32_cpuid");
|
|
|
|
&external_label("OPENSSL_ia32cap_P");
|
|
|
|
&function_begin_B("OPENSSL_rdtsc","EXTRN\t_OPENSSL_ia32cap_P:DWORD");
|
|
&xor ("eax","eax");
|
|
&xor ("edx","edx");
|
|
&picmeup("ecx","OPENSSL_ia32cap_P");
|
|
&bt (&DWP(0,"ecx"),4);
|
|
&jnc (&label("notsc"));
|
|
&rdtsc ();
|
|
&set_label("notsc");
|
|
&ret ();
|
|
&function_end_B("OPENSSL_rdtsc");
|
|
|
|
# This works in Ring 0 only [read DJGPP+MS-DOS+privileged DPMI host],
|
|
# but it's safe to call it on any [supported] 32-bit platform...
|
|
# Just check for [non-]zero return value...
|
|
&function_begin_B("OPENSSL_instrument_halt","EXTRN\t_OPENSSL_ia32cap_P:DWORD");
|
|
&picmeup("ecx","OPENSSL_ia32cap_P");
|
|
&bt (&DWP(0,"ecx"),4);
|
|
&jnc (&label("nohalt")); # no TSC
|
|
|
|
&data_word(0x9058900e); # push %cs; pop %eax
|
|
&and ("eax",3);
|
|
&jnz (&label("nohalt")); # not enough privileges
|
|
|
|
&pushf ();
|
|
&pop ("eax");
|
|
&bt ("eax",9);
|
|
&jnc (&label("nohalt")); # interrupts are disabled
|
|
|
|
&rdtsc ();
|
|
&push ("edx");
|
|
&push ("eax");
|
|
&halt ();
|
|
&rdtsc ();
|
|
|
|
&sub ("eax",&DWP(0,"esp"));
|
|
&sbb ("edx",&DWP(4,"esp"));
|
|
&add ("esp",8);
|
|
&ret ();
|
|
|
|
&set_label("nohalt");
|
|
&xor ("eax","eax");
|
|
&xor ("edx","edx");
|
|
&ret ();
|
|
&function_end_B("OPENSSL_instrument_halt");
|
|
|
|
# Essentially there is only one use for this function. Under DJGPP:
|
|
#
|
|
# #include <go32.h>
|
|
# ...
|
|
# i=OPENSSL_far_spin(_dos_ds,0x46c);
|
|
# ...
|
|
# to obtain the number of spins till closest timer interrupt.
|
|
|
|
&function_begin_B("OPENSSL_far_spin");
|
|
&pushf ();
|
|
&pop ("eax");
|
|
&bt ("eax",9);
|
|
&jnc (&label("nospin")); # interrupts are disabled
|
|
|
|
&mov ("eax",&DWP(4,"esp"));
|
|
&mov ("ecx",&DWP(8,"esp"));
|
|
&data_word (0x90d88e1e); # push %ds, mov %eax,%ds
|
|
&xor ("eax","eax");
|
|
&mov ("edx",&DWP(0,"ecx"));
|
|
&jmp (&label("spin"));
|
|
|
|
&align (16);
|
|
&set_label("spin");
|
|
&inc ("eax");
|
|
&cmp ("edx",&DWP(0,"ecx"));
|
|
&je (&label("spin"));
|
|
|
|
&data_word (0x1f909090); # pop %ds
|
|
&ret ();
|
|
|
|
&set_label("nospin");
|
|
&xor ("eax","eax");
|
|
&xor ("edx","edx");
|
|
&ret ();
|
|
&function_end_B("OPENSSL_far_spin");
|
|
|
|
&function_begin_B("OPENSSL_wipe_cpu","EXTRN\t_OPENSSL_ia32cap_P:DWORD");
|
|
&xor ("eax","eax");
|
|
&xor ("edx","edx");
|
|
&picmeup("ecx","OPENSSL_ia32cap_P");
|
|
&mov ("ecx",&DWP(0,"ecx"));
|
|
&bt (&DWP(0,"ecx"),1);
|
|
&jnc (&label("no_x87"));
|
|
if ($sse2) {
|
|
&and ("ecx",1<<26|1<<24); # check SSE2 and FXSR bits
|
|
&cmp ("ecx",1<<26|1<<24);
|
|
&jne (&label("no_sse2"));
|
|
&pxor ("xmm0","xmm0");
|
|
&pxor ("xmm1","xmm1");
|
|
&pxor ("xmm2","xmm2");
|
|
&pxor ("xmm3","xmm3");
|
|
&pxor ("xmm4","xmm4");
|
|
&pxor ("xmm5","xmm5");
|
|
&pxor ("xmm6","xmm6");
|
|
&pxor ("xmm7","xmm7");
|
|
&set_label("no_sse2");
|
|
}
|
|
# just a bunch of fldz to zap the fp/mm bank followed by finit...
|
|
&data_word(0xeed9eed9,0xeed9eed9,0xeed9eed9,0xeed9eed9,0x90e3db9b);
|
|
&set_label("no_x87");
|
|
&lea ("eax",&DWP(4,"esp"));
|
|
&ret ();
|
|
&function_end_B("OPENSSL_wipe_cpu");
|
|
|
|
&function_begin_B("OPENSSL_atomic_add");
|
|
&mov ("edx",&DWP(4,"esp")); # fetch the pointer, 1st arg
|
|
&mov ("ecx",&DWP(8,"esp")); # fetch the increment, 2nd arg
|
|
&push ("ebx");
|
|
&nop ();
|
|
&mov ("eax",&DWP(0,"edx"));
|
|
&set_label("spin");
|
|
&lea ("ebx",&DWP(0,"eax","ecx"));
|
|
&nop ();
|
|
&data_word(0x1ab10ff0); # lock; cmpxchg %ebx,(%edx) # %eax is envolved and is always reloaded
|
|
&jne (&label("spin"));
|
|
&mov ("eax","ebx"); # OpenSSL expects the new value
|
|
&pop ("ebx");
|
|
&ret ();
|
|
&function_end_B("OPENSSL_atomic_add");
|
|
|
|
# This function can become handy under Win32 in situations when
|
|
# we don't know which calling convention, __stdcall or __cdecl(*),
|
|
# indirect callee is using. In C it can be deployed as
|
|
#
|
|
#ifdef OPENSSL_CPUID_OBJ
|
|
# type OPENSSL_indirect_call(void *f,...);
|
|
# ...
|
|
# OPENSSL_indirect_call(func,[up to $max arguments]);
|
|
#endif
|
|
#
|
|
# (*) it's designed to work even for __fastcall if number of
|
|
# arguments is 1 or 2!
|
|
&function_begin_B("OPENSSL_indirect_call");
|
|
{
|
|
my ($max,$i)=(7,); # $max has to be chosen as 4*n-1
|
|
# in order to preserve eventual
|
|
# stack alignment
|
|
&push ("ebp");
|
|
&mov ("ebp","esp");
|
|
&sub ("esp",$max*4);
|
|
&mov ("ecx",&DWP(12,"ebp"));
|
|
&mov (&DWP(0,"esp"),"ecx");
|
|
&mov ("edx",&DWP(16,"ebp"));
|
|
&mov (&DWP(4,"esp"),"edx");
|
|
for($i=2;$i<$max;$i++)
|
|
{
|
|
# Some copies will be redundant/bogus...
|
|
&mov ("eax",&DWP(12+$i*4,"ebp"));
|
|
&mov (&DWP(0+$i*4,"esp"),"eax");
|
|
}
|
|
&call_ptr (&DWP(8,"ebp"));# make the call...
|
|
&mov ("esp","ebp"); # ... and just restore the stack pointer
|
|
# without paying attention to what we called,
|
|
# (__cdecl *func) or (__stdcall *one).
|
|
&pop ("ebp");
|
|
&ret ();
|
|
}
|
|
&function_end_B("OPENSSL_indirect_call");
|
|
|
|
&function_begin_B("OPENSSL_cleanse");
|
|
&mov ("edx",&wparam(0));
|
|
&mov ("ecx",&wparam(1));
|
|
&xor ("eax","eax");
|
|
&cmp ("ecx",7);
|
|
&jae (&label("lot"));
|
|
&cmp ("ecx",0);
|
|
&je (&label("ret"));
|
|
&set_label("little");
|
|
&mov (&BP(0,"edx"),"al");
|
|
&sub ("ecx",1);
|
|
&lea ("edx",&DWP(1,"edx"));
|
|
&jnz (&label("little"));
|
|
&set_label("ret");
|
|
&ret ();
|
|
|
|
&set_label("lot",16);
|
|
&test ("edx",3);
|
|
&jz (&label("aligned"));
|
|
&mov (&BP(0,"edx"),"al");
|
|
&lea ("ecx",&DWP(-1,"ecx"));
|
|
&lea ("edx",&DWP(1,"edx"));
|
|
&jmp (&label("lot"));
|
|
&set_label("aligned");
|
|
&mov (&DWP(0,"edx"),"eax");
|
|
&lea ("ecx",&DWP(-4,"ecx"));
|
|
&test ("ecx",-4);
|
|
&lea ("edx",&DWP(4,"edx"));
|
|
&jnz (&label("aligned"));
|
|
&cmp ("ecx",0);
|
|
&jne (&label("little"));
|
|
&ret ();
|
|
&function_end_B("OPENSSL_cleanse");
|
|
|
|
&function_begin_B("CRYPTO_memcmp");
|
|
&push ("esi");
|
|
&push ("edi");
|
|
&mov ("esi",&wparam(0));
|
|
&mov ("edi",&wparam(1));
|
|
&mov ("ecx",&wparam(2));
|
|
&xor ("eax","eax");
|
|
&xor ("edx","edx");
|
|
&cmp ("ecx",0);
|
|
&je (&label("no_data"));
|
|
&set_label("loop");
|
|
&mov ("dl",&BP(0,"esi"));
|
|
&lea ("esi",&DWP(1,"esi"));
|
|
&xor ("dl",&BP(0,"edi"));
|
|
&lea ("edi",&DWP(1,"edi"));
|
|
&or ("al","dl");
|
|
&dec ("ecx");
|
|
&jnz (&label("loop"));
|
|
&neg ("eax");
|
|
&shr ("eax",31);
|
|
&set_label("no_data");
|
|
&pop ("edi");
|
|
&pop ("esi");
|
|
&ret ();
|
|
&function_end_B("CRYPTO_memcmp");
|
|
{
|
|
my $lasttick = "esi";
|
|
my $lastdiff = "ebx";
|
|
my $out = "edi";
|
|
my $cnt = "ecx";
|
|
my $max = "ebp";
|
|
|
|
&function_begin("OPENSSL_instrument_bus");
|
|
&mov ("eax",0);
|
|
if ($sse2) {
|
|
&picmeup("edx","OPENSSL_ia32cap_P");
|
|
&bt (&DWP(0,"edx"),4);
|
|
&jnc (&label("nogo")); # no TSC
|
|
&bt (&DWP(0,"edx"),19);
|
|
&jnc (&label("nogo")); # no CLFLUSH
|
|
|
|
&mov ($out,&wparam(0)); # load arguments
|
|
&mov ($cnt,&wparam(1));
|
|
|
|
# collect 1st tick
|
|
&rdtsc ();
|
|
&mov ($lasttick,"eax"); # lasttick = tick
|
|
&mov ($lastdiff,0); # lastdiff = 0
|
|
&clflush(&DWP(0,$out));
|
|
&data_byte(0xf0); # lock
|
|
&add (&DWP(0,$out),$lastdiff);
|
|
&jmp (&label("loop"));
|
|
|
|
&set_label("loop",16);
|
|
&rdtsc ();
|
|
&mov ("edx","eax"); # put aside tick (yes, I neglect edx)
|
|
&sub ("eax",$lasttick); # diff
|
|
&mov ($lasttick,"edx"); # lasttick = tick
|
|
&mov ($lastdiff,"eax"); # lastdiff = diff
|
|
&clflush(&DWP(0,$out));
|
|
&data_byte(0xf0); # lock
|
|
&add (&DWP(0,$out),"eax"); # accumulate diff
|
|
&lea ($out,&DWP(4,$out)); # ++$out
|
|
&sub ($cnt,1); # --$cnt
|
|
&jnz (&label("loop"));
|
|
|
|
&mov ("eax",&wparam(1));
|
|
&set_label("nogo");
|
|
}
|
|
&function_end("OPENSSL_instrument_bus");
|
|
|
|
&function_begin("OPENSSL_instrument_bus2");
|
|
&mov ("eax",0);
|
|
if ($sse2) {
|
|
&picmeup("edx","OPENSSL_ia32cap_P");
|
|
&bt (&DWP(0,"edx"),4);
|
|
&jnc (&label("nogo")); # no TSC
|
|
&bt (&DWP(0,"edx"),19);
|
|
&jnc (&label("nogo")); # no CLFLUSH
|
|
|
|
&mov ($out,&wparam(0)); # load arguments
|
|
&mov ($cnt,&wparam(1));
|
|
&mov ($max,&wparam(2));
|
|
|
|
&rdtsc (); # collect 1st tick
|
|
&mov ($lasttick,"eax"); # lasttick = tick
|
|
&mov ($lastdiff,0); # lastdiff = 0
|
|
|
|
&clflush(&DWP(0,$out));
|
|
&data_byte(0xf0); # lock
|
|
&add (&DWP(0,$out),$lastdiff);
|
|
|
|
&rdtsc (); # collect 1st diff
|
|
&mov ("edx","eax"); # put aside tick (yes, I neglect edx)
|
|
&sub ("eax",$lasttick); # diff
|
|
&mov ($lasttick,"edx"); # lasttick = tick
|
|
&mov ($lastdiff,"eax"); # lastdiff = diff
|
|
&jmp (&label("loop2"));
|
|
|
|
&set_label("loop2",16);
|
|
&clflush(&DWP(0,$out));
|
|
&data_byte(0xf0); # lock
|
|
&add (&DWP(0,$out),"eax"); # accumulate diff
|
|
|
|
&sub ($max,1);
|
|
&jz (&label("done2"));
|
|
|
|
&rdtsc ();
|
|
&mov ("edx","eax"); # put aside tick (yes, I neglect edx)
|
|
&sub ("eax",$lasttick); # diff
|
|
&mov ($lasttick,"edx"); # lasttick = tick
|
|
&cmp ("eax",$lastdiff);
|
|
&mov ($lastdiff,"eax"); # lastdiff = diff
|
|
&mov ("edx",0);
|
|
&setne ("dl");
|
|
&sub ($cnt,"edx"); # conditional --$cnt
|
|
&lea ($out,&DWP(0,$out,"edx",4)); # conditional ++$out
|
|
&jnz (&label("loop2"));
|
|
|
|
&set_label("done2");
|
|
&mov ("eax",&wparam(1));
|
|
&sub ("eax",$cnt);
|
|
&set_label("nogo");
|
|
}
|
|
&function_end("OPENSSL_instrument_bus2");
|
|
}
|
|
|
|
&function_begin_B("OPENSSL_ia32_rdrand");
|
|
&mov ("ecx",8);
|
|
&set_label("loop");
|
|
&rdrand ("eax");
|
|
&jc (&label("break"));
|
|
&loop (&label("loop"));
|
|
&set_label("break");
|
|
&cmp ("eax",0);
|
|
&cmove ("eax","ecx");
|
|
&ret ();
|
|
&function_end_B("OPENSSL_ia32_rdrand");
|
|
|
|
&function_begin_B("OPENSSL_ia32_rdseed");
|
|
&mov ("ecx",8);
|
|
&set_label("loop");
|
|
&rdseed ("eax");
|
|
&jc (&label("break"));
|
|
&loop (&label("loop"));
|
|
&set_label("break");
|
|
&cmp ("eax",0);
|
|
&cmove ("eax","ecx");
|
|
&ret ();
|
|
&function_end_B("OPENSSL_ia32_rdseed");
|
|
|
|
&initseg("OPENSSL_cpuid_setup");
|
|
|
|
&hidden("OPENSSL_cpuid_setup");
|
|
&hidden("OPENSSL_ia32cap_P");
|
|
|
|
&asm_finish();
|
|
|
|
close STDOUT;
|