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rc4/asm/rc4-586.pl: allow for 386-only build.

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(cherry picked from commit f861b1d433)
This commit is contained in:
Andy Polyakov 2014-02-27 14:19:19 +01:00
parent 4bf6d66e67
commit 1f59eb5f11
2 changed files with 7 additions and 3 deletions
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2
crypto/rc4/Makefile
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@ -42,7 +42,7 @@ lib: $(LIBOBJ)
@touch lib
rc4-586.s: asm/rc4-586.pl ../perlasm/x86asm.pl
$(PERL) asm/rc4-586.pl $(PERLASM_SCHEME) $(CFLAGS) > $@
$(PERL) asm/rc4-586.pl $(PERLASM_SCHEME) $(CFLAGS) $(PROCESSOR) > $@
rc4-x86_64.s: asm/rc4-x86_64.pl
$(PERL) asm/rc4-x86_64.pl $(PERLASM_SCHEME) > $@

8
crypto/rc4/asm/rc4-586.pl
View File

@ -60,7 +60,7 @@ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
push(@INC,"${dir}","${dir}../../perlasm");
require "x86asm.pl";
&asm_init($ARGV[0],"rc4-586.pl");
&asm_init($ARGV[0],"rc4-586.pl",$x86only = $ARGV[$#ARGV] eq "386");
$xx="eax";
$yy="ebx";
@ -184,8 +184,11 @@ if ($alt=0) {
&and ($ty,-4); # how many 4-byte chunks?
&jz (&label("loop1"));
&test ($ty,-8);
&mov (&wparam(3),$out); # $out as accumulator in these loops
if ($x86only) {
&jmp (&label("go4loop4"));
} else {
&test ($ty,-8);
&jz (&label("go4loop4"));
&picmeup($out,"OPENSSL_ia32cap_P");
@ -228,6 +231,7 @@ if ($alt=0) {
&cmp ($inp,&wparam(1)); # compare to input+len
&je (&label("done"));
&jmp (&label("loop1"));
}
&set_label("go4loop4",16);
&lea ($ty,&DWP(-4,$inp,$ty));