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path: root/src/lib/libcrypto/perlasm/x86gas.pl
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Diffstat (limited to 'src/lib/libcrypto/perlasm/x86gas.pl')
-rw-r--r--src/lib/libcrypto/perlasm/x86gas.pl315
1 files changed, 0 insertions, 315 deletions
diff --git a/src/lib/libcrypto/perlasm/x86gas.pl b/src/lib/libcrypto/perlasm/x86gas.pl
deleted file mode 100644
index b84e28be97..0000000000
--- a/src/lib/libcrypto/perlasm/x86gas.pl
+++ /dev/null
@@ -1,315 +0,0 @@
1#!/usr/bin/env perl
2
3package x86gas;
4
5*out=\@::out;
6
7$::lbdecor=$::aout?"L":".L"; # local label decoration
8$nmdecor=($::aout or $::coff)?"_":""; # external name decoration
9
10$initseg="";
11
12$align=16;
13$align=log($align)/log(2) if ($::aout);
14$com_start="#" if ($::aout or $::coff);
15
16sub opsize()
17{ my $reg=shift;
18 if ($reg =~ m/^%e/o) { "l"; }
19 elsif ($reg =~ m/^%[a-d][hl]$/o) { "b"; }
20 elsif ($reg =~ m/^%[xm]/o) { undef; }
21 else { "w"; }
22}
23
24# swap arguments;
25# expand opcode with size suffix;
26# prefix numeric constants with $;
27sub ::generic
28{ my($opcode,@arg)=@_;
29 my($suffix,$dst,$src);
30
31 @arg=reverse(@arg);
32
33 for (@arg)
34 { s/^(\*?)(e?[a-dsixphl]{2})$/$1%$2/o; # gp registers
35 s/^([xy]?mm[0-7])$/%$1/o; # xmm/mmx registers
36 s/^(\-?[0-9]+)$/\$$1/o; # constants
37 s/^(\-?0x[0-9a-f]+)$/\$$1/o; # constants
38 }
39
40 $dst = $arg[$#arg] if ($#arg>=0);
41 $src = $arg[$#arg-1] if ($#arg>=1);
42 if ($dst =~ m/^%/o) { $suffix=&opsize($dst); }
43 elsif ($src =~ m/^%/o) { $suffix=&opsize($src); }
44 else { $suffix="l"; }
45 undef $suffix if ($dst =~ m/^%[xm]/o || $src =~ m/^%[xm]/o);
46
47 if ($#_==0) { &::emit($opcode); }
48 elsif ($#_==1 && $opcode =~ m/^(call|clflush|j|loop|set)/o)
49 { &::emit($opcode,@arg); }
50 else { &::emit($opcode.$suffix,@arg);}
51
52 1;
53}
54#
55# opcodes not covered by ::generic above, mostly inconsistent namings...
56#
57sub ::movzx { &::movzb(@_); }
58sub ::pushfd { &::pushfl; }
59sub ::popfd { &::popfl; }
60sub ::cpuid { &::emit(".byte\t0x0f,0xa2"); }
61sub ::rdtsc { &::emit(".byte\t0x0f,0x31"); }
62
63sub ::call { &::emit("call",(&::islabel($_[0]) or "$nmdecor$_[0]")); }
64sub ::call_ptr { &::generic("call","*$_[0]"); }
65sub ::jmp_ptr { &::generic("jmp","*$_[0]"); }
66
67*::bswap = sub { &::emit("bswap","%$_[0]"); } if (!$::i386);
68
69sub ::DWP
70{ my($addr,$reg1,$reg2,$idx)=@_;
71 my $ret="";
72
73 $addr =~ s/^\s+//;
74 # prepend global references with optional underscore
75 $addr =~ s/^([^\+\-0-9][^\+\-]*)/&::islabel($1) or "$nmdecor$1"/ige;
76
77 $reg1 = "%$reg1" if ($reg1);
78 $reg2 = "%$reg2" if ($reg2);
79
80 $ret .= $addr if (($addr ne "") && ($addr ne 0));
81
82 if ($reg2)
83 { $idx!= 0 or $idx=1;
84 $ret .= "($reg1,$reg2,$idx)";
85 }
86 elsif ($reg1)
87 { $ret .= "($reg1)"; }
88
89 $ret;
90}
91sub ::QWP { &::DWP(@_); }
92sub ::BP { &::DWP(@_); }
93sub ::WP { &::DWP(@_); }
94sub ::BC { @_; }
95sub ::DWC { @_; }
96
97sub ::file
98{ push(@out,".file\t\"$_[0].s\"\n.text\n"); }
99
100sub ::function_begin_B
101{ my $func=shift;
102 my $global=($func !~ /^_/);
103 my $begin="${::lbdecor}_${func}_begin";
104
105 &::LABEL($func,$global?"$begin":"$nmdecor$func");
106 $func=$nmdecor.$func;
107
108 push(@out,".globl\t$func\n") if ($global);
109 if ($::coff)
110 { push(@out,".def\t$func;\t.scl\t".(3-$global).";\t.type\t32;\t.endef\n"); }
111 elsif (($::aout and !$::pic) or $::macosx)
112 { }
113 else
114 { push(@out,".type $func,\@function\n"); }
115 push(@out,".align\t$align\n");
116 push(@out,"$func:\n");
117 push(@out,"$begin:\n") if ($global);
118 $::stack=4;
119}
120
121sub ::function_end_B
122{ my $func=shift;
123 push(@out,".size\t$nmdecor$func,.-".&::LABEL($func)."\n") if ($::elf);
124 $::stack=0;
125 &::wipe_labels();
126}
127
128sub ::comment
129 {
130 if (!defined($com_start) or $::elf)
131 { # Regarding $::elf above...
132 # GNU and SVR4 as'es use different comment delimiters,
133 push(@out,"\n"); # so we just skip ELF comments...
134 return;
135 }
136 foreach (@_)
137 {
138 if (/^\s*$/)
139 { push(@out,"\n"); }
140 else
141 { push(@out,"\t$com_start $_ $com_end\n"); }
142 }
143 }
144
145sub ::external_label
146{ foreach(@_) { &::LABEL($_,$nmdecor.$_); } }
147
148sub ::public_label
149{ push(@out,".globl\t".&::LABEL($_[0],$nmdecor.$_[0])."\n"); }
150
151sub ::file_end
152{ if ($::macosx)
153 { if (%non_lazy_ptr)
154 { push(@out,".section __IMPORT,__pointers,non_lazy_symbol_pointers\n");
155 foreach $i (keys %non_lazy_ptr)
156 { push(@out,"$non_lazy_ptr{$i}:\n.indirect_symbol\t$i\n.long\t0\n"); }
157 }
158 }
159 if (grep {/\b${nmdecor}OPENSSL_ia32cap_P\b/i} @out) {
160 push (@out, ".extern\t${nmdecor}OPENSSL_ia32cap_P\n");
161 push (@out, ".hidden\t${nmdecor}OPENSSL_ia32cap_P\n");
162 }
163 push(@out,$initseg) if ($initseg);
164}
165
166sub ::data_byte { push(@out,".byte\t".join(',',@_)."\n"); }
167sub ::data_short{ push(@out,".value\t".join(',',@_)."\n"); }
168sub ::data_word { push(@out,".long\t".join(',',@_)."\n"); }
169
170sub ::align
171{ my $val=$_[0],$p2,$i;
172 if ($::aout)
173 { for ($p2=0;$val!=0;$val>>=1) { $p2++; }
174 $val=$p2-1;
175 $val.=",0x90";
176 }
177 push(@out,".align\t$val\n");
178}
179
180#
181# PIC data access wrappers
182#
183# Usage:
184# picsetup($base)
185# - only allowed once per function (because of hardcoded label name),
186# sets up pic access, uses $base register as temporary
187# picsymbol($dst, $sym, $base)
188# - loads the address of symbol $sym into $dst with the help of $base
189# initialized by picsetup
190# picadjust($sym, $base)
191# - adjusts a code pointer read from a code_sym table with the help of
192# $base initialized by picsetup
193# code_sym($sym)
194# - emits a pointer to the given code symbol, relative to the GOT if
195# PIC. This pointer will need to be adjusted with picadjust above
196# before use.
197
198sub ::picsetup
199{ my($base)=@_;
200
201 if (($::pic && ($::openbsd || $::elf || $::aout)) || $::macosx)
202 {
203 &::call(&::label("PIC_setup"));
204 &::set_label("PIC_setup");
205 &::blindpop($base);
206 if ($::macosx)
207 { my $indirect=&::static_label("$nmdecor$sym\$non_lazy_ptr");
208 $non_lazy_ptr{"$nmdecor$sym"}=$indirect;
209 }
210 }
211}
212
213sub ::picsymbol
214{ my($dst,$sym,$base)=@_;
215
216 if (($::pic && ($::openbsd || $::elf || $::aout)) || $::macosx)
217 {
218 my $reflabel=&::label("PIC_setup");
219 if ($::macosx)
220 { my $indirect=$non_lazy_ptr{"$nmdecor$sym"};
221 &::mov($dst,&::DWP("$indirect-$reflabel",$base));
222 }
223 else
224 { &::lea($dst,&::DWP("_GLOBAL_OFFSET_TABLE_+[.-$reflabel]",
225 $base));
226 &::mov($dst,&::DWP("$sym\@GOT",$dst));
227 }
228 }
229 else
230 { &::lea($dst,&::DWP($sym)); }
231}
232
233sub ::picadjust
234{ my($sym,$base)=@_;
235
236 if (($::pic && ($::openbsd || $::elf || $::aout)) || $::macosx)
237 {
238 my $reflabel=&::label("PIC_setup");
239 &::lea($sym,&::DWP("_GLOBAL_OFFSET_TABLE_+[.-$reflabel]",
240 $base,$sym));
241 }
242}
243
244sub ::code_sym
245{ my($sym)=@_;
246
247 if (($::pic && ($::openbsd || $::elf || $::aout)) || $::macosx)
248 {
249 $sym."\@GOTOFF";
250 }
251 else
252 {
253 $sym;
254 }
255}
256
257sub ::initseg
258{ my $f=$nmdecor.shift;
259
260 if ($::openbsd)
261 { $initseg.=<<___;
262.section .init
263PIC_PROLOGUE
264 call PIC_PLT($f)
265PIC_EPILOGUE
266___
267 } elsif ($::android)
268 { $initseg.=<<___;
269.section .init_array
270.align 4
271.long $f
272___
273 }
274 elsif ($::elf)
275 { $initseg.=<<___;
276.section .init
277 call $f
278___
279 }
280 elsif ($::coff)
281 { $initseg.=<<___; # applies to both Cygwin and Mingw
282.section .ctors
283.long $f
284___
285 }
286 elsif ($::macosx)
287 { $initseg.=<<___;
288.mod_init_func
289.align 2
290.long $f
291___
292 }
293 elsif ($::aout)
294 { my $ctor="${nmdecor}_GLOBAL_\$I\$$f";
295 $initseg.=".text\n";
296 $initseg.=".type $ctor,\@function\n" if ($::pic);
297 $initseg.=<<___; # OpenBSD way...
298.globl $ctor
299.align 2
300$ctor:
301 jmp $f
302___
303 }
304}
305
306sub ::dataseg
307{ push(@out,".data\n"); }
308
309sub ::rodataseg
310{ push(@out,".section .rodata\n"); }
311
312sub ::previous
313{ push(@out,".previous\n"); }
314
3151;
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