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-rw-r--r--src/lib/libcrypto/perlasm/cbc.pl349
-rwxr-xr-xsrc/lib/libcrypto/perlasm/ppc-xlate.pl152
-rw-r--r--src/lib/libcrypto/perlasm/readme124
-rwxr-xr-xsrc/lib/libcrypto/perlasm/x86_64-xlate.pl920
-rw-r--r--src/lib/libcrypto/perlasm/x86asm.pl221
-rw-r--r--src/lib/libcrypto/perlasm/x86gas.pl267
6 files changed, 0 insertions, 2033 deletions
diff --git a/src/lib/libcrypto/perlasm/cbc.pl b/src/lib/libcrypto/perlasm/cbc.pl
deleted file mode 100644
index 6fc2510905..0000000000
--- a/src/lib/libcrypto/perlasm/cbc.pl
+++ /dev/null
@@ -1,349 +0,0 @@
1#!/usr/local/bin/perl
2
3# void des_ncbc_encrypt(input, output, length, schedule, ivec, enc)
4# des_cblock (*input);
5# des_cblock (*output);
6# long length;
7# des_key_schedule schedule;
8# des_cblock (*ivec);
9# int enc;
10#
11# calls
12# des_encrypt((DES_LONG *)tin,schedule,DES_ENCRYPT);
13#
14
15#&cbc("des_ncbc_encrypt","des_encrypt",0);
16#&cbc("BF_cbc_encrypt","BF_encrypt","BF_encrypt",
17# 1,4,5,3,5,-1);
18#&cbc("des_ncbc_encrypt","des_encrypt","des_encrypt",
19# 0,4,5,3,5,-1);
20#&cbc("des_ede3_cbc_encrypt","des_encrypt3","des_decrypt3",
21# 0,6,7,3,4,5);
22#
23# When doing a cipher that needs bigendian order,
24# for encrypt, the iv is kept in bigendian form,
25# while for decrypt, it is kept in little endian.
26sub cbc
27 {
28 local($name,$enc_func,$dec_func,$swap,$iv_off,$enc_off,$p1,$p2,$p3)=@_;
29 # name is the function name
30 # enc_func and dec_func and the functions to call for encrypt/decrypt
31 # swap is true if byte order needs to be reversed
32 # iv_off is parameter number for the iv
33 # enc_off is parameter number for the encrypt/decrypt flag
34 # p1,p2,p3 are the offsets for parameters to be passed to the
35 # underlying calls.
36
37 &function_begin_B($name,"");
38 &comment("");
39
40 $in="esi";
41 $out="edi";
42 $count="ebp";
43
44 &push("ebp");
45 &push("ebx");
46 &push("esi");
47 &push("edi");
48
49 $data_off=4;
50 $data_off+=4 if ($p1 > 0);
51 $data_off+=4 if ($p2 > 0);
52 $data_off+=4 if ($p3 > 0);
53
54 &mov($count, &wparam(2)); # length
55
56 &comment("getting iv ptr from parameter $iv_off");
57 &mov("ebx", &wparam($iv_off)); # Get iv ptr
58
59 &mov($in, &DWP(0,"ebx","",0));# iv[0]
60 &mov($out, &DWP(4,"ebx","",0));# iv[1]
61
62 &push($out);
63 &push($in);
64 &push($out); # used in decrypt for iv[1]
65 &push($in); # used in decrypt for iv[0]
66
67 &mov("ebx", "esp"); # This is the address of tin[2]
68
69 &mov($in, &wparam(0)); # in
70 &mov($out, &wparam(1)); # out
71
72 # We have loaded them all, how lets push things
73 &comment("getting encrypt flag from parameter $enc_off");
74 &mov("ecx", &wparam($enc_off)); # Get enc flag
75 if ($p3 > 0)
76 {
77 &comment("get and push parameter $p3");
78 if ($enc_off != $p3)
79 { &mov("eax", &wparam($p3)); &push("eax"); }
80 else { &push("ecx"); }
81 }
82 if ($p2 > 0)
83 {
84 &comment("get and push parameter $p2");
85 if ($enc_off != $p2)
86 { &mov("eax", &wparam($p2)); &push("eax"); }
87 else { &push("ecx"); }
88 }
89 if ($p1 > 0)
90 {
91 &comment("get and push parameter $p1");
92 if ($enc_off != $p1)
93 { &mov("eax", &wparam($p1)); &push("eax"); }
94 else { &push("ecx"); }
95 }
96 &push("ebx"); # push data/iv
97
98 &cmp("ecx",0);
99 &jz(&label("decrypt"));
100
101 &and($count,0xfffffff8);
102 &mov("eax", &DWP($data_off,"esp","",0)); # load iv[0]
103 &mov("ebx", &DWP($data_off+4,"esp","",0)); # load iv[1]
104
105 &jz(&label("encrypt_finish"));
106
107 #############################################################
108
109 &set_label("encrypt_loop");
110 # encrypt start
111 # "eax" and "ebx" hold iv (or the last cipher text)
112
113 &mov("ecx", &DWP(0,$in,"",0)); # load first 4 bytes
114 &mov("edx", &DWP(4,$in,"",0)); # second 4 bytes
115
116 &xor("eax", "ecx");
117 &xor("ebx", "edx");
118
119 &bswap("eax") if $swap;
120 &bswap("ebx") if $swap;
121
122 &mov(&DWP($data_off,"esp","",0), "eax"); # put in array for call
123 &mov(&DWP($data_off+4,"esp","",0), "ebx"); #
124
125 &call($enc_func);
126
127 &mov("eax", &DWP($data_off,"esp","",0));
128 &mov("ebx", &DWP($data_off+4,"esp","",0));
129
130 &bswap("eax") if $swap;
131 &bswap("ebx") if $swap;
132
133 &mov(&DWP(0,$out,"",0),"eax");
134 &mov(&DWP(4,$out,"",0),"ebx");
135
136 # eax and ebx are the next iv.
137
138 &add($in, 8);
139 &add($out, 8);
140
141 &sub($count, 8);
142 &jnz(&label("encrypt_loop"));
143
144###################################################################3
145 &set_label("encrypt_finish");
146 &mov($count, &wparam(2)); # length
147 &and($count, 7);
148 &jz(&label("finish"));
149 &call(&label("PIC_point"));
150&set_label("PIC_point");
151 &blindpop("edx");
152 &lea("ecx",&DWP(&label("cbc_enc_jmp_table")."-".&label("PIC_point"),"edx"));
153 &mov($count,&DWP(0,"ecx",$count,4))
154 &add($count,"edx");
155 &xor("ecx","ecx");
156 &xor("edx","edx");
157 #&mov($count,&DWP(&label("cbc_enc_jmp_table"),"",$count,4));
158 &jmp_ptr($count);
159
160&set_label("ej7");
161 &movb(&HB("edx"), &BP(6,$in,"",0));
162 &shl("edx",8);
163&set_label("ej6");
164 &movb(&HB("edx"), &BP(5,$in,"",0));
165&set_label("ej5");
166 &movb(&LB("edx"), &BP(4,$in,"",0));
167&set_label("ej4");
168 &mov("ecx", &DWP(0,$in,"",0));
169 &jmp(&label("ejend"));
170&set_label("ej3");
171 &movb(&HB("ecx"), &BP(2,$in,"",0));
172 &shl("ecx",8);
173&set_label("ej2");
174 &movb(&HB("ecx"), &BP(1,$in,"",0));
175&set_label("ej1");
176 &movb(&LB("ecx"), &BP(0,$in,"",0));
177&set_label("ejend");
178
179 &xor("eax", "ecx");
180 &xor("ebx", "edx");
181
182 &bswap("eax") if $swap;
183 &bswap("ebx") if $swap;
184
185 &mov(&DWP($data_off,"esp","",0), "eax"); # put in array for call
186 &mov(&DWP($data_off+4,"esp","",0), "ebx"); #
187
188 &call($enc_func);
189
190 &mov("eax", &DWP($data_off,"esp","",0));
191 &mov("ebx", &DWP($data_off+4,"esp","",0));
192
193 &bswap("eax") if $swap;
194 &bswap("ebx") if $swap;
195
196 &mov(&DWP(0,$out,"",0),"eax");
197 &mov(&DWP(4,$out,"",0),"ebx");
198
199 &jmp(&label("finish"));
200
201 #############################################################
202 #############################################################
203 &set_label("decrypt",1);
204 # decrypt start
205 &and($count,0xfffffff8);
206 # The next 2 instructions are only for if the jz is taken
207 &mov("eax", &DWP($data_off+8,"esp","",0)); # get iv[0]
208 &mov("ebx", &DWP($data_off+12,"esp","",0)); # get iv[1]
209 &jz(&label("decrypt_finish"));
210
211 &set_label("decrypt_loop");
212 &mov("eax", &DWP(0,$in,"",0)); # load first 4 bytes
213 &mov("ebx", &DWP(4,$in,"",0)); # second 4 bytes
214
215 &bswap("eax") if $swap;
216 &bswap("ebx") if $swap;
217
218 &mov(&DWP($data_off,"esp","",0), "eax"); # put back
219 &mov(&DWP($data_off+4,"esp","",0), "ebx"); #
220
221 &call($dec_func);
222
223 &mov("eax", &DWP($data_off,"esp","",0)); # get return
224 &mov("ebx", &DWP($data_off+4,"esp","",0)); #
225
226 &bswap("eax") if $swap;
227 &bswap("ebx") if $swap;
228
229 &mov("ecx", &DWP($data_off+8,"esp","",0)); # get iv[0]
230 &mov("edx", &DWP($data_off+12,"esp","",0)); # get iv[1]
231
232 &xor("ecx", "eax");
233 &xor("edx", "ebx");
234
235 &mov("eax", &DWP(0,$in,"",0)); # get old cipher text,
236 &mov("ebx", &DWP(4,$in,"",0)); # next iv actually
237
238 &mov(&DWP(0,$out,"",0),"ecx");
239 &mov(&DWP(4,$out,"",0),"edx");
240
241 &mov(&DWP($data_off+8,"esp","",0), "eax"); # save iv
242 &mov(&DWP($data_off+12,"esp","",0), "ebx"); #
243
244 &add($in, 8);
245 &add($out, 8);
246
247 &sub($count, 8);
248 &jnz(&label("decrypt_loop"));
249############################ ENDIT #######################3
250 &set_label("decrypt_finish");
251 &mov($count, &wparam(2)); # length
252 &and($count, 7);
253 &jz(&label("finish"));
254
255 &mov("eax", &DWP(0,$in,"",0)); # load first 4 bytes
256 &mov("ebx", &DWP(4,$in,"",0)); # second 4 bytes
257
258 &bswap("eax") if $swap;
259 &bswap("ebx") if $swap;
260
261 &mov(&DWP($data_off,"esp","",0), "eax"); # put back
262 &mov(&DWP($data_off+4,"esp","",0), "ebx"); #
263
264 &call($dec_func);
265
266 &mov("eax", &DWP($data_off,"esp","",0)); # get return
267 &mov("ebx", &DWP($data_off+4,"esp","",0)); #
268
269 &bswap("eax") if $swap;
270 &bswap("ebx") if $swap;
271
272 &mov("ecx", &DWP($data_off+8,"esp","",0)); # get iv[0]
273 &mov("edx", &DWP($data_off+12,"esp","",0)); # get iv[1]
274
275 &xor("ecx", "eax");
276 &xor("edx", "ebx");
277
278 # this is for when we exit
279 &mov("eax", &DWP(0,$in,"",0)); # get old cipher text,
280 &mov("ebx", &DWP(4,$in,"",0)); # next iv actually
281
282&set_label("dj7");
283 &rotr("edx", 16);
284 &movb(&BP(6,$out,"",0), &LB("edx"));
285 &shr("edx",16);
286&set_label("dj6");
287 &movb(&BP(5,$out,"",0), &HB("edx"));
288&set_label("dj5");
289 &movb(&BP(4,$out,"",0), &LB("edx"));
290&set_label("dj4");
291 &mov(&DWP(0,$out,"",0), "ecx");
292 &jmp(&label("djend"));
293&set_label("dj3");
294 &rotr("ecx", 16);
295 &movb(&BP(2,$out,"",0), &LB("ecx"));
296 &shl("ecx",16);
297&set_label("dj2");
298 &movb(&BP(1,$in,"",0), &HB("ecx"));
299&set_label("dj1");
300 &movb(&BP(0,$in,"",0), &LB("ecx"));
301&set_label("djend");
302
303 # final iv is still in eax:ebx
304 &jmp(&label("finish"));
305
306
307############################ FINISH #######################3
308 &set_label("finish",1);
309 &mov("ecx", &wparam($iv_off)); # Get iv ptr
310
311 #################################################
312 $total=16+4;
313 $total+=4 if ($p1 > 0);
314 $total+=4 if ($p2 > 0);
315 $total+=4 if ($p3 > 0);
316 &add("esp",$total);
317
318 &mov(&DWP(0,"ecx","",0), "eax"); # save iv
319 &mov(&DWP(4,"ecx","",0), "ebx"); # save iv
320
321 &function_end_A($name);
322
323 &align(64);
324 &set_label("cbc_enc_jmp_table");
325 &data_word("0");
326 &data_word(&label("ej1")."-".&label("PIC_point"));
327 &data_word(&label("ej2")."-".&label("PIC_point"));
328 &data_word(&label("ej3")."-".&label("PIC_point"));
329 &data_word(&label("ej4")."-".&label("PIC_point"));
330 &data_word(&label("ej5")."-".&label("PIC_point"));
331 &data_word(&label("ej6")."-".&label("PIC_point"));
332 &data_word(&label("ej7")."-".&label("PIC_point"));
333 # not used
334 #&set_label("cbc_dec_jmp_table",1);
335 #&data_word("0");
336 #&data_word(&label("dj1")."-".&label("PIC_point"));
337 #&data_word(&label("dj2")."-".&label("PIC_point"));
338 #&data_word(&label("dj3")."-".&label("PIC_point"));
339 #&data_word(&label("dj4")."-".&label("PIC_point"));
340 #&data_word(&label("dj5")."-".&label("PIC_point"));
341 #&data_word(&label("dj6")."-".&label("PIC_point"));
342 #&data_word(&label("dj7")."-".&label("PIC_point"));
343 &align(64);
344
345 &function_end_B($name);
346
347 }
348
3491;
diff --git a/src/lib/libcrypto/perlasm/ppc-xlate.pl b/src/lib/libcrypto/perlasm/ppc-xlate.pl
deleted file mode 100755
index 4579671c97..0000000000
--- a/src/lib/libcrypto/perlasm/ppc-xlate.pl
+++ /dev/null
@@ -1,152 +0,0 @@
1#!/usr/bin/env perl
2
3# PowerPC assembler distiller by <appro>.
4
5my $flavour = shift;
6my $output = shift;
7open STDOUT,">$output" || die "can't open $output: $!";
8
9my %GLOBALS;
10my $dotinlocallabels=($flavour=~/linux/)?1:0;
11
12################################################################
13# directives which need special treatment on different platforms
14################################################################
15my $globl = sub {
16 my $junk = shift;
17 my $name = shift;
18 my $global = \$GLOBALS{$name};
19 my $ret;
20
21 $name =~ s|^[\.\_]||;
22
23 SWITCH: for ($flavour) {
24 /aix/ && do { $name = ".$name";
25 last;
26 };
27 /osx/ && do { $name = "_$name";
28 last;
29 };
30 /linux.*32/ && do { $ret .= ".globl $name\n";
31 $ret .= ".type $name,\@function";
32 last;
33 };
34 /linux.*64/ && do { $ret .= ".globl .$name\n";
35 $ret .= ".type .$name,\@function\n";
36 $ret .= ".section \".opd\",\"aw\"\n";
37 $ret .= ".globl $name\n";
38 $ret .= ".align 3\n";
39 $ret .= "$name:\n";
40 $ret .= ".quad .$name,.TOC.\@tocbase,0\n";
41 $ret .= ".size $name,24\n";
42 $ret .= ".previous\n";
43
44 $name = ".$name";
45 last;
46 };
47 }
48
49 $ret = ".globl $name" if (!$ret);
50 $$global = $name;
51 $ret;
52};
53my $text = sub {
54 ($flavour =~ /aix/) ? ".csect" : ".text";
55};
56my $machine = sub {
57 my $junk = shift;
58 my $arch = shift;
59 if ($flavour =~ /osx/)
60 { $arch =~ s/\"//g;
61 $arch = ($flavour=~/64/) ? "ppc970-64" : "ppc970" if ($arch eq "any");
62 }
63 ".machine $arch";
64};
65my $asciz = sub {
66 shift;
67 my $line = join(",",@_);
68 if ($line =~ /^"(.*)"$/)
69 { ".byte " . join(",",unpack("C*",$1),0) . "\n.align 2"; }
70 else
71 { ""; }
72};
73
74################################################################
75# simplified mnemonics not handled by at least one assembler
76################################################################
77my $cmplw = sub {
78 my $f = shift;
79 my $cr = 0; $cr = shift if ($#_>1);
80 # Some out-of-date 32-bit GNU assembler just can't handle cmplw...
81 ($flavour =~ /linux.*32/) ?
82 " .long ".sprintf "0x%x",31<<26|$cr<<23|$_[0]<<16|$_[1]<<11|64 :
83 " cmplw ".join(',',$cr,@_);
84};
85my $bdnz = sub {
86 my $f = shift;
87 my $bo = $f=~/[\+\-]/ ? 16+9 : 16; # optional "to be taken" hint
88 " bc $bo,0,".shift;
89} if ($flavour!~/linux/);
90my $bltlr = sub {
91 my $f = shift;
92 my $bo = $f=~/\-/ ? 12+2 : 12; # optional "not to be taken" hint
93 ($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints
94 " .long ".sprintf "0x%x",19<<26|$bo<<21|16<<1 :
95 " bclr $bo,0";
96};
97my $bnelr = sub {
98 my $f = shift;
99 my $bo = $f=~/\-/ ? 4+2 : 4; # optional "not to be taken" hint
100 ($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints
101 " .long ".sprintf "0x%x",19<<26|$bo<<21|2<<16|16<<1 :
102 " bclr $bo,2";
103};
104my $beqlr = sub {
105 my $f = shift;
106 my $bo = $f=~/-/ ? 12+2 : 12; # optional "not to be taken" hint
107 ($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints
108 " .long ".sprintf "0x%X",19<<26|$bo<<21|2<<16|16<<1 :
109 " bclr $bo,2";
110};
111# GNU assembler can't handle extrdi rA,rS,16,48, or when sum of last two
112# arguments is 64, with "operand out of range" error.
113my $extrdi = sub {
114 my ($f,$ra,$rs,$n,$b) = @_;
115 $b = ($b+$n)&63; $n = 64-$n;
116 " rldicl $ra,$rs,$b,$n";
117};
118
119while($line=<>) {
120
121 $line =~ s|[#!;].*$||; # get rid of asm-style comments...
122 $line =~ s|/\*.*\*/||; # ... and C-style comments...
123 $line =~ s|^\s+||; # ... and skip white spaces in beginning...
124 $line =~ s|\s+$||; # ... and at the end
125
126 {
127 $line =~ s|\b\.L(\w+)|L$1|g; # common denominator for Locallabel
128 $line =~ s|\bL(\w+)|\.L$1|g if ($dotinlocallabels);
129 }
130
131 {
132 $line =~ s|(^[\.\w]+)\:\s*||;
133 my $label = $1;
134 printf "%s:",($GLOBALS{$label} or $label) if ($label);
135 }
136
137 {
138 $line =~ s|^\s*(\.?)(\w+)([\.\+\-]?)\s*||;
139 my $c = $1; $c = "\t" if ($c eq "");
140 my $mnemonic = $2;
141 my $f = $3;
142 my $opcode = eval("\$$mnemonic");
143 $line =~ s|\bc?[rf]([0-9]+)\b|$1|g if ($c ne "." and $flavour !~ /osx/);
144 if (ref($opcode) eq 'CODE') { $line = &$opcode($f,split(',',$line)); }
145 elsif ($mnemonic) { $line = $c.$mnemonic.$f."\t".$line; }
146 }
147
148 print $line if ($line);
149 print "\n";
150}
151
152close STDOUT;
diff --git a/src/lib/libcrypto/perlasm/readme b/src/lib/libcrypto/perlasm/readme
deleted file mode 100644
index f02bbee75a..0000000000
--- a/src/lib/libcrypto/perlasm/readme
+++ /dev/null
@@ -1,124 +0,0 @@
1The perl scripts in this directory are my 'hack' to generate
2multiple different assembler formats via the one origional script.
3
4The way to use this library is to start with adding the path to this directory
5and then include it.
6
7push(@INC,"perlasm","../../perlasm");
8require "x86asm.pl";
9
10The first thing we do is setup the file and type of assember
11
12&asm_init($ARGV[0],$0);
13
14The first argument is the 'type'. Currently
15'cpp', 'sol', 'a.out', 'elf' or 'win32'.
16Argument 2 is the file name.
17
18The reciprocal function is
19&asm_finish() which should be called at the end.
20
21There are 2 main 'packages'. x86ms.pl, which is the microsoft assembler,
22and x86unix.pl which is the unix (gas) version.
23
24Functions of interest are:
25&external_label("des_SPtrans"); declare and external variable
26&LB(reg); Low byte for a register
27&HB(reg); High byte for a register
28&BP(off,base,index,scale) Byte pointer addressing
29&DWP(off,base,index,scale) Word pointer addressing
30&stack_push(num) Basically a 'sub esp, num*4' with extra
31&stack_pop(num) inverse of stack_push
32&function_begin(name,extra) Start a function with pushing of
33 edi, esi, ebx and ebp. extra is extra win32
34 external info that may be required.
35&function_begin_B(name,extra) Same as norma function_begin but no pushing.
36&function_end(name) Call at end of function.
37&function_end_A(name) Standard pop and ret, for use inside functions
38&function_end_B(name) Call at end but with poping or 'ret'.
39&swtmp(num) Address on stack temp word.
40&wparam(num) Parameter number num, that was push
41 in C convention. This all works over pushes
42 and pops.
43&comment("hello there") Put in a comment.
44&label("loop") Refer to a label, normally a jmp target.
45&set_label("loop") Set a label at this point.
46&data_word(word) Put in a word of data.
47
48So how does this all hold together? Given
49
50int calc(int len, int *data)
51 {
52 int i,j=0;
53
54 for (i=0; i<len; i++)
55 {
56 j+=other(data[i]);
57 }
58 }
59
60So a very simple version of this function could be coded as
61
62 push(@INC,"perlasm","../../perlasm");
63 require "x86asm.pl";
64
65 &asm_init($ARGV[0],"cacl.pl");
66
67 &external_label("other");
68
69 $tmp1= "eax";
70 $j= "edi";
71 $data= "esi";
72 $i= "ebp";
73
74 &comment("a simple function");
75 &function_begin("calc");
76 &mov( $data, &wparam(1)); # data
77 &xor( $j, $j);
78 &xor( $i, $i);
79
80 &set_label("loop");
81 &cmp( $i, &wparam(0));
82 &jge( &label("end"));
83
84 &mov( $tmp1, &DWP(0,$data,$i,4));
85 &push( $tmp1);
86 &call( "other");
87 &add( $j, "eax");
88 &pop( $tmp1);
89 &inc( $i);
90 &jmp( &label("loop"));
91
92 &set_label("end");
93 &mov( "eax", $j);
94
95 &function_end("calc");
96
97 &asm_finish();
98
99The above example is very very unoptimised but gives an idea of how
100things work.
101
102There is also a cbc mode function generator in cbc.pl
103
104&cbc( $name,
105 $encrypt_function_name,
106 $decrypt_function_name,
107 $true_if_byte_swap_needed,
108 $parameter_number_for_iv,
109 $parameter_number_for_encrypt_flag,
110 $first_parameter_to_pass,
111 $second_parameter_to_pass,
112 $third_parameter_to_pass);
113
114So for example, given
115void BF_encrypt(BF_LONG *data,BF_KEY *key);
116void BF_decrypt(BF_LONG *data,BF_KEY *key);
117void BF_cbc_encrypt(unsigned char *in, unsigned char *out, long length,
118 BF_KEY *ks, unsigned char *iv, int enc);
119
120&cbc("BF_cbc_encrypt","BF_encrypt","BF_encrypt",1,4,5,3,-1,-1);
121
122&cbc("des_ncbc_encrypt","des_encrypt","des_encrypt",0,4,5,3,5,-1);
123&cbc("des_ede3_cbc_encrypt","des_encrypt3","des_decrypt3",0,6,7,3,4,5);
124
diff --git a/src/lib/libcrypto/perlasm/x86_64-xlate.pl b/src/lib/libcrypto/perlasm/x86_64-xlate.pl
deleted file mode 100755
index 68b4c1ca80..0000000000
--- a/src/lib/libcrypto/perlasm/x86_64-xlate.pl
+++ /dev/null
@@ -1,920 +0,0 @@
1#!/usr/bin/env perl
2
3# Ascetic x86_64 AT&T to MASM/NASM assembler translator by <appro>.
4#
5# Why AT&T to MASM and not vice versa? Several reasons. Because AT&T
6# format is way easier to parse. Because it's simpler to "gear" from
7# Unix ABI to Windows one [see cross-reference "card" at the end of
8# file]. Because Linux targets were available first...
9#
10# In addition the script also "distills" code suitable for GNU
11# assembler, so that it can be compiled with more rigid assemblers,
12# such as Solaris /usr/ccs/bin/as.
13#
14# This translator is not designed to convert *arbitrary* assembler
15# code from AT&T format to MASM one. It's designed to convert just
16# enough to provide for dual-ABI OpenSSL modules development...
17# There *are* limitations and you might have to modify your assembler
18# code or this script to achieve the desired result...
19#
20# Currently recognized limitations:
21#
22# - can't use multiple ops per line;
23#
24# Dual-ABI styling rules.
25#
26# 1. Adhere to Unix register and stack layout [see cross-reference
27# ABI "card" at the end for explanation].
28# 2. Forget about "red zone," stick to more traditional blended
29# stack frame allocation. If volatile storage is actually required
30# that is. If not, just leave the stack as is.
31# 3. Functions tagged with ".type name,@function" get crafted with
32# unified Win64 prologue and epilogue automatically. If you want
33# to take care of ABI differences yourself, tag functions as
34# ".type name,@abi-omnipotent" instead.
35# 4. To optimize the Win64 prologue you can specify number of input
36# arguments as ".type name,@function,N." Keep in mind that if N is
37# larger than 6, then you *have to* write "abi-omnipotent" code,
38# because >6 cases can't be addressed with unified prologue.
39# 5. Name local labels as .L*, do *not* use dynamic labels such as 1:
40# (sorry about latter).
41# 6. Don't use [or hand-code with .byte] "rep ret." "ret" mnemonic is
42# required to identify the spots, where to inject Win64 epilogue!
43# But on the pros, it's then prefixed with rep automatically:-)
44# 7. Stick to explicit ip-relative addressing. If you have to use
45# GOTPCREL addressing, stick to mov symbol@GOTPCREL(%rip),%r??.
46# Both are recognized and translated to proper Win64 addressing
47# modes. To support legacy code a synthetic directive, .picmeup,
48# is implemented. It puts address of the *next* instruction into
49# target register, e.g.:
50#
51# .picmeup %rax
52# lea .Label-.(%rax),%rax
53#
54# 8. In order to provide for structured exception handling unified
55# Win64 prologue copies %rsp value to %rax. For further details
56# see SEH paragraph at the end.
57# 9. .init segment is allowed to contain calls to functions only.
58# a. If function accepts more than 4 arguments *and* >4th argument
59# is declared as non 64-bit value, do clear its upper part.
60
61my $flavour = shift;
62my $output = shift;
63if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
64
65{ my ($stddev,$stdino,@junk)=stat(STDOUT);
66 my ($outdev,$outino,@junk)=stat($output);
67
68 open STDOUT,">$output" || die "can't open $output: $!"
69 if (1 || $stddev!=$outdev || $stdino!=$outino);
70}
71
72my $gas=1; $gas=0 if ($output =~ /\.asm$/);
73my $elf=1; $elf=0 if (!$gas);
74my $win64=0;
75my $prefix="";
76my $decor=".L";
77
78my $masmref=8 + 50727*2**-32; # 8.00.50727 shipped with VS2005
79my $masm=0;
80my $PTR=" PTR";
81
82my $nasmref=2.03;
83my $nasm=0;
84
85if ($flavour eq "mingw64") { $gas=1; $elf=0; $win64=1;
86 $prefix=`echo __USER_LABEL_PREFIX__ | $ENV{CC} -E -P -`;
87 chomp($prefix);
88 }
89elsif ($flavour eq "macosx") { $gas=1; $elf=0; $prefix="_"; $decor="L\$"; }
90elsif ($flavour eq "masm") { $gas=0; $elf=0; $masm=$masmref; $win64=1; $decor="\$L\$"; }
91elsif ($flavour eq "nasm") { $gas=0; $elf=0; $nasm=$nasmref; $win64=1; $decor="\$L\$"; $PTR=""; }
92elsif (!$gas)
93{ if ($ENV{ASM} =~ m/nasm/ && `nasm -v` =~ m/version ([0-9]+)\.([0-9]+)/i)
94 { $nasm = $1 + $2*0.01; $PTR=""; }
95 elsif (`ml64 2>&1` =~ m/Version ([0-9]+)\.([0-9]+)(\.([0-9]+))?/)
96 { $masm = $1 + $2*2**-16 + $4*2**-32; }
97 die "no assembler found on %PATH" if (!($nasm || $masm));
98 $win64=1;
99 $elf=0;
100 $decor="\$L\$";
101}
102
103my $current_segment;
104my $current_function;
105my %globals;
106
107{ package opcode; # pick up opcodes
108 sub re {
109 my $self = shift; # single instance in enough...
110 local *line = shift;
111 undef $ret;
112
113 if ($line =~ /^([a-z][a-z0-9]*)/i) {
114 $self->{op} = $1;
115 $ret = $self;
116 $line = substr($line,@+[0]); $line =~ s/^\s+//;
117
118 undef $self->{sz};
119 if ($self->{op} =~ /^(movz)b.*/) { # movz is pain...
120 $self->{op} = $1;
121 $self->{sz} = "b";
122 } elsif ($self->{op} =~ /call|jmp/) {
123 $self->{sz} = "";
124 } elsif ($self->{op} =~ /^p/ && $' !~ /^(ush|op)/) { # SSEn
125 $self->{sz} = "";
126 } elsif ($self->{op} =~ /([a-z]{3,})([qlwb])$/) {
127 $self->{op} = $1;
128 $self->{sz} = $2;
129 }
130 }
131 $ret;
132 }
133 sub size {
134 my $self = shift;
135 my $sz = shift;
136 $self->{sz} = $sz if (defined($sz) && !defined($self->{sz}));
137 $self->{sz};
138 }
139 sub out {
140 my $self = shift;
141 if ($gas) {
142 if ($self->{op} eq "movz") { # movz is pain...
143 sprintf "%s%s%s",$self->{op},$self->{sz},shift;
144 } elsif ($self->{op} =~ /^set/) {
145 "$self->{op}";
146 } elsif ($self->{op} eq "ret") {
147 my $epilogue = "";
148 if ($win64 && $current_function->{abi} eq "svr4") {
149 $epilogue = "movq 8(%rsp),%rdi\n\t" .
150 "movq 16(%rsp),%rsi\n\t";
151 }
152 $epilogue . ".byte 0xf3,0xc3";
153 } elsif ($self->{op} eq "call" && !$elf && $current_segment eq ".init") {
154 ".p2align\t3\n\t.quad";
155 } else {
156 "$self->{op}$self->{sz}";
157 }
158 } else {
159 $self->{op} =~ s/^movz/movzx/;
160 if ($self->{op} eq "ret") {
161 $self->{op} = "";
162 if ($win64 && $current_function->{abi} eq "svr4") {
163 $self->{op} = "mov rdi,QWORD${PTR}[8+rsp]\t;WIN64 epilogue\n\t".
164 "mov rsi,QWORD${PTR}[16+rsp]\n\t";
165 }
166 $self->{op} .= "DB\t0F3h,0C3h\t\t;repret";
167 } elsif ($self->{op} =~ /^(pop|push)f/) {
168 $self->{op} .= $self->{sz};
169 } elsif ($self->{op} eq "call" && $current_segment eq ".CRT\$XCU") {
170 $self->{op} = "\tDQ";
171 }
172 $self->{op};
173 }
174 }
175 sub mnemonic {
176 my $self=shift;
177 my $op=shift;
178 $self->{op}=$op if (defined($op));
179 $self->{op};
180 }
181}
182{ package const; # pick up constants, which start with $
183 sub re {
184 my $self = shift; # single instance in enough...
185 local *line = shift;
186 undef $ret;
187
188 if ($line =~ /^\$([^,]+)/) {
189 $self->{value} = $1;
190 $ret = $self;
191 $line = substr($line,@+[0]); $line =~ s/^\s+//;
192 }
193 $ret;
194 }
195 sub out {
196 my $self = shift;
197
198 if ($gas) {
199 # Solaris /usr/ccs/bin/as can't handle multiplications
200 # in $self->{value}
201 $self->{value} =~ s/(?<![\w\$\.])(0x?[0-9a-f]+)/oct($1)/egi;
202 $self->{value} =~ s/([0-9]+\s*[\*\/\%]\s*[0-9]+)/eval($1)/eg;
203 sprintf "\$%s",$self->{value};
204 } else {
205 $self->{value} =~ s/(0b[0-1]+)/oct($1)/eig;
206 $self->{value} =~ s/0x([0-9a-f]+)/0$1h/ig if ($masm);
207 sprintf "%s",$self->{value};
208 }
209 }
210}
211{ package ea; # pick up effective addresses: expr(%reg,%reg,scale)
212 sub re {
213 my $self = shift; # single instance in enough...
214 local *line = shift;
215 undef $ret;
216
217 # optional * ---vvv--- appears in indirect jmp/call
218 if ($line =~ /^(\*?)([^\(,]*)\(([%\w,]+)\)/ &&
219 !($line =~ /^PIC_(GOT|PLT)/)) {
220 $self->{asterisk} = $1;
221 $self->{label} = $2;
222 ($self->{base},$self->{index},$self->{scale})=split(/,/,$3);
223 $self->{scale} = 1 if (!defined($self->{scale}));
224 $ret = $self;
225 $line = substr($line,@+[0]); $line =~ s/^\s+//;
226
227 if ($win64 && $self->{label} =~ s/\@GOTPCREL//) {
228 die if (opcode->mnemonic() ne "mov");
229 opcode->mnemonic("lea");
230 }
231 $self->{base} =~ s/^%//;
232 $self->{index} =~ s/^%// if (defined($self->{index}));
233 }
234 $ret;
235 }
236 sub size {}
237 sub out {
238 my $self = shift;
239 my $sz = shift;
240
241 $self->{label} =~ s/([_a-z][_a-z0-9]*)/$globals{$1} or $1/gei;
242 $self->{label} =~ s/\.L/$decor/g;
243
244 # Silently convert all EAs to 64-bit. This is required for
245 # elder GNU assembler and results in more compact code,
246 # *but* most importantly AES module depends on this feature!
247 $self->{index} =~ s/^[er](.?[0-9xpi])[d]?$/r\1/;
248 $self->{base} =~ s/^[er](.?[0-9xpi])[d]?$/r\1/;
249
250 if ($gas) {
251 # Solaris /usr/ccs/bin/as can't handle multiplications
252 # in $self->{label}, new gas requires sign extension...
253 use integer;
254 $self->{label} =~ s/(?<![\w\$\.])(0x?[0-9a-f]+)/oct($1)/egi;
255 $self->{label} =~ s/([0-9]+\s*[\*\/\%]\s*[0-9]+)/eval($1)/eg;
256 $self->{label} =~ s/([0-9]+)/$1<<32>>32/eg;
257 $self->{label} =~ s/^___imp_/__imp__/ if ($flavour eq "mingw64");
258
259 if (defined($self->{index})) {
260 sprintf "%s%s(%%%s,%%%s,%d)",$self->{asterisk},
261 $self->{label},$self->{base},
262 $self->{index},$self->{scale};
263 } else {
264 sprintf "%s%s(%%%s)", $self->{asterisk},$self->{label},$self->{base};
265 }
266 } else {
267 %szmap = ( b=>"BYTE$PTR", w=>"WORD$PTR", l=>"DWORD$PTR", q=>"QWORD$PTR" );
268
269 $self->{label} =~ s/\./\$/g;
270 $self->{label} =~ s/(?<![\w\$\.])0x([0-9a-f]+)/0$1h/ig;
271 $self->{label} = "($self->{label})" if ($self->{label} =~ /[\*\+\-\/]/);
272 $sz="q" if ($self->{asterisk});
273
274 if (defined($self->{index})) {
275 sprintf "%s[%s%s*%d+%s]",$szmap{$sz},
276 $self->{label}?"$self->{label}+":"",
277 $self->{index},$self->{scale},
278 $self->{base};
279 } elsif ($self->{base} eq "rip") {
280 sprintf "%s[%s]",$szmap{$sz},$self->{label};
281 } else {
282 sprintf "%s[%s%s]",$szmap{$sz},
283 $self->{label}?"$self->{label}+":"",
284 $self->{base};
285 }
286 }
287 }
288}
289{ package register; # pick up registers, which start with %.
290 sub re {
291 my $class = shift; # muliple instances...
292 my $self = {};
293 local *line = shift;
294 undef $ret;
295
296 # optional * ---vvv--- appears in indirect jmp/call
297 if ($line =~ /^(\*?)%(\w+)/) {
298 bless $self,$class;
299 $self->{asterisk} = $1;
300 $self->{value} = $2;
301 $ret = $self;
302 $line = substr($line,@+[0]); $line =~ s/^\s+//;
303 }
304 $ret;
305 }
306 sub size {
307 my $self = shift;
308 undef $ret;
309
310 if ($self->{value} =~ /^r[\d]+b$/i) { $ret="b"; }
311 elsif ($self->{value} =~ /^r[\d]+w$/i) { $ret="w"; }
312 elsif ($self->{value} =~ /^r[\d]+d$/i) { $ret="l"; }
313 elsif ($self->{value} =~ /^r[\w]+$/i) { $ret="q"; }
314 elsif ($self->{value} =~ /^[a-d][hl]$/i){ $ret="b"; }
315 elsif ($self->{value} =~ /^[\w]{2}l$/i) { $ret="b"; }
316 elsif ($self->{value} =~ /^[\w]{2}$/i) { $ret="w"; }
317 elsif ($self->{value} =~ /^e[a-z]{2}$/i){ $ret="l"; }
318
319 $ret;
320 }
321 sub out {
322 my $self = shift;
323 if ($gas) { sprintf "%s%%%s",$self->{asterisk},$self->{value}; }
324 else { $self->{value}; }
325 }
326}
327{ package label; # pick up labels, which end with :
328 sub re {
329 my $self = shift; # single instance is enough...
330 local *line = shift;
331 undef $ret;
332
333 if ($line =~ /(^[\.\w]+)\:/) {
334 $self->{value} = $1;
335 $ret = $self;
336 $line = substr($line,@+[0]); $line =~ s/^\s+//;
337
338 $self->{value} =~ s/^\.L/$decor/;
339 }
340 $ret;
341 }
342 sub out {
343 my $self = shift;
344
345 if ($gas) {
346 my $func = ($globals{$self->{value}} or $self->{value}) . ":";
347 if ($win64 &&
348 $current_function->{name} eq $self->{value} &&
349 $current_function->{abi} eq "svr4") {
350 $func .= "\n";
351 $func .= " movq %rdi,8(%rsp)\n";
352 $func .= " movq %rsi,16(%rsp)\n";
353 $func .= " movq %rsp,%rax\n";
354 $func .= "${decor}SEH_begin_$current_function->{name}:\n";
355 my $narg = $current_function->{narg};
356 $narg=6 if (!defined($narg));
357 $func .= " movq %rcx,%rdi\n" if ($narg>0);
358 $func .= " movq %rdx,%rsi\n" if ($narg>1);
359 $func .= " movq %r8,%rdx\n" if ($narg>2);
360 $func .= " movq %r9,%rcx\n" if ($narg>3);
361 $func .= " movq 40(%rsp),%r8\n" if ($narg>4);
362 $func .= " movq 48(%rsp),%r9\n" if ($narg>5);
363 }
364 $func;
365 } elsif ($self->{value} ne "$current_function->{name}") {
366 $self->{value} .= ":" if ($masm && $ret!~m/^\$/);
367 $self->{value} . ":";
368 } elsif ($win64 && $current_function->{abi} eq "svr4") {
369 my $func = "$current_function->{name}" .
370 ($nasm ? ":" : "\tPROC $current_function->{scope}") .
371 "\n";
372 $func .= " mov QWORD${PTR}[8+rsp],rdi\t;WIN64 prologue\n";
373 $func .= " mov QWORD${PTR}[16+rsp],rsi\n";
374 $func .= " mov rax,rsp\n";
375 $func .= "${decor}SEH_begin_$current_function->{name}:";
376 $func .= ":" if ($masm);
377 $func .= "\n";
378 my $narg = $current_function->{narg};
379 $narg=6 if (!defined($narg));
380 $func .= " mov rdi,rcx\n" if ($narg>0);
381 $func .= " mov rsi,rdx\n" if ($narg>1);
382 $func .= " mov rdx,r8\n" if ($narg>2);
383 $func .= " mov rcx,r9\n" if ($narg>3);
384 $func .= " mov r8,QWORD${PTR}[40+rsp]\n" if ($narg>4);
385 $func .= " mov r9,QWORD${PTR}[48+rsp]\n" if ($narg>5);
386 $func .= "\n";
387 } else {
388 "$current_function->{name}".
389 ($nasm ? ":" : "\tPROC $current_function->{scope}");
390 }
391 }
392}
393{ package expr; # pick up expressioins
394 sub re {
395 my $self = shift; # single instance is enough...
396 local *line = shift;
397 undef $ret;
398
399 if ($line =~ /(^[^,]+)/) {
400 $self->{value} = $1;
401 $ret = $self;
402 $line = substr($line,@+[0]); $line =~ s/^\s+//;
403
404 $self->{value} =~ s/\@PLT// if (!$elf);
405 $self->{value} =~ s/([_a-z][_a-z0-9]*)/$globals{$1} or $1/gei;
406 $self->{value} =~ s/\.L/$decor/g;
407 }
408 $ret;
409 }
410 sub out {
411 my $self = shift;
412 if ($nasm && opcode->mnemonic()=~m/^j/) {
413 "NEAR ".$self->{value};
414 } else {
415 $self->{value};
416 }
417 }
418}
419{ package directive; # pick up directives, which start with .
420 sub re {
421 my $self = shift; # single instance is enough...
422 local *line = shift;
423 undef $ret;
424 my $dir;
425 my %opcode = # lea 2f-1f(%rip),%dst; 1: nop; 2:
426 ( "%rax"=>0x01058d48, "%rcx"=>0x010d8d48,
427 "%rdx"=>0x01158d48, "%rbx"=>0x011d8d48,
428 "%rsp"=>0x01258d48, "%rbp"=>0x012d8d48,
429 "%rsi"=>0x01358d48, "%rdi"=>0x013d8d48,
430 "%r8" =>0x01058d4c, "%r9" =>0x010d8d4c,
431 "%r10"=>0x01158d4c, "%r11"=>0x011d8d4c,
432 "%r12"=>0x01258d4c, "%r13"=>0x012d8d4c,
433 "%r14"=>0x01358d4c, "%r15"=>0x013d8d4c );
434
435 if ($line =~ /^\s*(\.\w+)/) {
436 $dir = $1;
437 $ret = $self;
438 undef $self->{value};
439 $line = substr($line,@+[0]); $line =~ s/^\s+//;
440
441 SWITCH: for ($dir) {
442 /\.picmeup/ && do { if ($line =~ /(%r[\w]+)/i) {
443 $dir="\t.long";
444 $line=sprintf "0x%x,0x90000000",$opcode{$1};
445 }
446 last;
447 };
448 /\.global|\.globl|\.extern/
449 && do { $globals{$line} = $prefix . $line;
450 $line = $globals{$line} if ($prefix);
451 last;
452 };
453 /\.type/ && do { ($sym,$type,$narg) = split(',',$line);
454 if ($type eq "\@function") {
455 undef $current_function;
456 $current_function->{name} = $sym;
457 $current_function->{abi} = "svr4";
458 $current_function->{narg} = $narg;
459 $current_function->{scope} = defined($globals{$sym})?"PUBLIC":"PRIVATE";
460 } elsif ($type eq "\@abi-omnipotent") {
461 undef $current_function;
462 $current_function->{name} = $sym;
463 $current_function->{scope} = defined($globals{$sym})?"PUBLIC":"PRIVATE";
464 }
465 $line =~ s/\@abi\-omnipotent/\@function/;
466 $line =~ s/\@function.*/\@function/;
467 last;
468 };
469 /\.asciz/ && do { if ($line =~ /^"(.*)"$/) {
470 $dir = ".byte";
471 $line = join(",",unpack("C*",$1),0);
472 }
473 last;
474 };
475 /\.rva|\.long|\.quad/
476 && do { $line =~ s/([_a-z][_a-z0-9]*)/$globals{$1} or $1/gei;
477 $line =~ s/\.L/$decor/g;
478 last;
479 };
480 }
481
482 if ($gas) {
483 $self->{value} = $dir . "\t" . $line;
484
485 if ($dir =~ /\.extern/) {
486 $self->{value} = ""; # swallow extern
487 } elsif (!$elf && $dir =~ /\.type/) {
488 $self->{value} = "";
489 $self->{value} = ".def\t" . ($globals{$1} or $1) . ";\t" .
490 (defined($globals{$1})?".scl 2;":".scl 3;") .
491 "\t.type 32;\t.endef"
492 if ($win64 && $line =~ /([^,]+),\@function/);
493 } elsif (!$elf && $dir =~ /\.size/) {
494 $self->{value} = "";
495 if (defined($current_function)) {
496 $self->{value} .= "${decor}SEH_end_$current_function->{name}:"
497 if ($win64 && $current_function->{abi} eq "svr4");
498 undef $current_function;
499 }
500 } elsif (!$elf && $dir =~ /\.align/) {
501 $self->{value} = ".p2align\t" . (log($line)/log(2));
502 } elsif ($dir eq ".section") {
503 $current_segment=$line;
504 if (!$elf && $current_segment eq ".init") {
505 if ($flavour eq "macosx") { $self->{value} = ".mod_init_func"; }
506 elsif ($flavour eq "mingw64") { $self->{value} = ".section\t.ctors"; }
507 }
508 } elsif ($dir =~ /\.(text|data)/) {
509 $current_segment=".$1";
510 }
511 $line = "";
512 return $self;
513 }
514
515 # non-gas case or nasm/masm
516 SWITCH: for ($dir) {
517 /\.text/ && do { my $v=undef;
518 if ($nasm) {
519 $v="section .text code align=64\n";
520 } else {
521 $v="$current_segment\tENDS\n" if ($current_segment);
522 $current_segment = ".text\$";
523 $v.="$current_segment\tSEGMENT ";
524 $v.=$masm>=$masmref ? "ALIGN(64)" : "PAGE";
525 $v.=" 'CODE'";
526 }
527 $self->{value} = $v;
528 last;
529 };
530 /\.data/ && do { my $v=undef;
531 if ($nasm) {
532 $v="section .data data align=8\n";
533 } else {
534 $v="$current_segment\tENDS\n" if ($current_segment);
535 $current_segment = "_DATA";
536 $v.="$current_segment\tSEGMENT";
537 }
538 $self->{value} = $v;
539 last;
540 };
541 /\.section/ && do { my $v=undef;
542 $line =~ s/([^,]*).*/$1/;
543 $line = ".CRT\$XCU" if ($line eq ".init");
544 if ($nasm) {
545 $v="section $line";
546 if ($line=~/\.([px])data/) {
547 $v.=" rdata align=";
548 $v.=$1 eq "p"? 4 : 8;
549 } elsif ($line=~/\.CRT\$/i) {
550 $v.=" rdata align=8";
551 }
552 } else {
553 $v="$current_segment\tENDS\n" if ($current_segment);
554 $v.="$line\tSEGMENT";
555 if ($line=~/\.([px])data/) {
556 $v.=" READONLY";
557 $v.=" ALIGN(".($1 eq "p" ? 4 : 8).")" if ($masm>=$masmref);
558 } elsif ($line=~/\.CRT\$/i) {
559 $v.=" READONLY DWORD";
560 }
561 }
562 $current_segment = $line;
563 $self->{value} = $v;
564 last;
565 };
566 /\.extern/ && do { $self->{value} = "EXTERN\t".$line;
567 $self->{value} .= ":NEAR" if ($masm);
568 last;
569 };
570 /\.globl|.global/
571 && do { $self->{value} = $masm?"PUBLIC":"global";
572 $self->{value} .= "\t".$line;
573 last;
574 };
575 /\.size/ && do { if (defined($current_function)) {
576 undef $self->{value};
577 if ($current_function->{abi} eq "svr4") {
578 $self->{value}="${decor}SEH_end_$current_function->{name}:";
579 $self->{value}.=":\n" if($masm);
580 }
581 $self->{value}.="$current_function->{name}\tENDP" if($masm);
582 undef $current_function;
583 }
584 last;
585 };
586 /\.align/ && do { $self->{value} = "ALIGN\t".$line; last; };
587 /\.(value|long|rva|quad)/
588 && do { my $sz = substr($1,0,1);
589 my @arr = split(/,\s*/,$line);
590 my $last = pop(@arr);
591 my $conv = sub { my $var=shift;
592 $var=~s/^(0b[0-1]+)/oct($1)/eig;
593 $var=~s/^0x([0-9a-f]+)/0$1h/ig if ($masm);
594 if ($sz eq "D" && ($current_segment=~/.[px]data/ || $dir eq ".rva"))
595 { $var=~s/([_a-z\$\@][_a-z0-9\$\@]*)/$nasm?"$1 wrt ..imagebase":"imagerel $1"/egi; }
596 $var;
597 };
598
599 $sz =~ tr/bvlrq/BWDDQ/;
600 $self->{value} = "\tD$sz\t";
601 for (@arr) { $self->{value} .= &$conv($_).","; }
602 $self->{value} .= &$conv($last);
603 last;
604 };
605 /\.byte/ && do { my @str=split(/,\s*/,$line);
606 map(s/(0b[0-1]+)/oct($1)/eig,@str);
607 map(s/0x([0-9a-f]+)/0$1h/ig,@str) if ($masm);
608 while ($#str>15) {
609 $self->{value}.="DB\t"
610 .join(",",@str[0..15])."\n";
611 foreach (0..15) { shift @str; }
612 }
613 $self->{value}.="DB\t"
614 .join(",",@str) if (@str);
615 last;
616 };
617 }
618 $line = "";
619 }
620
621 $ret;
622 }
623 sub out {
624 my $self = shift;
625 $self->{value};
626 }
627}
628
629print "#include <machine/asm.h>\n";
630
631if ($nasm) {
632 print <<___;
633default rel
634___
635} elsif ($masm) {
636 print <<___;
637OPTION DOTNAME
638___
639}
640while($line=<>) {
641
642 chomp($line);
643
644 $line =~ s|[#!].*$||; # get rid of asm-style comments...
645 $line =~ s|/\*.*\*/||; # ... and C-style comments...
646 $line =~ s|^\s+||; # ... and skip white spaces in beginning
647
648 undef $label;
649 undef $opcode;
650 undef $sz;
651 undef @args;
652
653 if ($label=label->re(\$line)) { print $label->out(); }
654
655 if (directive->re(\$line)) {
656 printf "%s",directive->out();
657 } elsif ($opcode=opcode->re(\$line)) { ARGUMENT: while (1) {
658 my $arg;
659
660 if ($arg=register->re(\$line)) { opcode->size($arg->size()); }
661 elsif ($arg=const->re(\$line)) { }
662 elsif ($arg=ea->re(\$line)) { }
663 elsif ($arg=expr->re(\$line)) { }
664 else { last ARGUMENT; }
665
666 push @args,$arg;
667
668 last ARGUMENT if ($line !~ /^,/);
669
670 $line =~ s/^,\s*//;
671 } # ARGUMENT:
672
673 $sz=opcode->size();
674
675 if ($#args>=0) {
676 my $insn;
677 if ($gas) {
678 $insn = $opcode->out($#args>=1?$args[$#args]->size():$sz);
679 } else {
680 $insn = $opcode->out();
681 $insn .= $sz if (map($_->out() =~ /x?mm/,@args));
682 @args = reverse(@args);
683 undef $sz if ($nasm && $opcode->mnemonic() eq "lea");
684 }
685 printf "\t%s\t%s",$insn,join(",",map($_->out($sz),@args));
686 } else {
687 printf "\t%s",$opcode->out();
688 }
689 }
690
691 print $line,"\n";
692}
693
694print "\n$current_segment\tENDS\n" if ($current_segment && $masm);
695print "END\n" if ($masm);
696
697close STDOUT;
698
699 #################################################
700# Cross-reference x86_64 ABI "card"
701#
702# Unix Win64
703# %rax * *
704# %rbx - -
705# %rcx #4 #1
706# %rdx #3 #2
707# %rsi #2 -
708# %rdi #1 -
709# %rbp - -
710# %rsp - -
711# %r8 #5 #3
712# %r9 #6 #4
713# %r10 * *
714# %r11 * *
715# %r12 - -
716# %r13 - -
717# %r14 - -
718# %r15 - -
719#
720# (*) volatile register
721# (-) preserved by callee
722# (#) Nth argument, volatile
723#
724# In Unix terms top of stack is argument transfer area for arguments
725# which could not be accomodated in registers. Or in other words 7th
726# [integer] argument resides at 8(%rsp) upon function entry point.
727# 128 bytes above %rsp constitute a "red zone" which is not touched
728# by signal handlers and can be used as temporal storage without
729# allocating a frame.
730#
731# In Win64 terms N*8 bytes on top of stack is argument transfer area,
732# which belongs to/can be overwritten by callee. N is the number of
733# arguments passed to callee, *but* not less than 4! This means that
734# upon function entry point 5th argument resides at 40(%rsp), as well
735# as that 32 bytes from 8(%rsp) can always be used as temporal
736# storage [without allocating a frame]. One can actually argue that
737# one can assume a "red zone" above stack pointer under Win64 as well.
738# Point is that at apparently no occasion Windows kernel would alter
739# the area above user stack pointer in true asynchronous manner...
740#
741# All the above means that if assembler programmer adheres to Unix
742# register and stack layout, but disregards the "red zone" existense,
743# it's possible to use following prologue and epilogue to "gear" from
744# Unix to Win64 ABI in leaf functions with not more than 6 arguments.
745#
746# omnipotent_function:
747# ifdef WIN64
748# movq %rdi,8(%rsp)
749# movq %rsi,16(%rsp)
750# movq %rcx,%rdi ; if 1st argument is actually present
751# movq %rdx,%rsi ; if 2nd argument is actually ...
752# movq %r8,%rdx ; if 3rd argument is ...
753# movq %r9,%rcx ; if 4th argument ...
754# movq 40(%rsp),%r8 ; if 5th ...
755# movq 48(%rsp),%r9 ; if 6th ...
756# endif
757# ...
758# ifdef WIN64
759# movq 8(%rsp),%rdi
760# movq 16(%rsp),%rsi
761# endif
762# ret
763#
764 #################################################
765# Win64 SEH, Structured Exception Handling.
766#
767# Unlike on Unix systems(*) lack of Win64 stack unwinding information
768# has undesired side-effect at run-time: if an exception is raised in
769# assembler subroutine such as those in question (basically we're
770# referring to segmentation violations caused by malformed input
771# parameters), the application is briskly terminated without invoking
772# any exception handlers, most notably without generating memory dump
773# or any user notification whatsoever. This poses a problem. It's
774# possible to address it by registering custom language-specific
775# handler that would restore processor context to the state at
776# subroutine entry point and return "exception is not handled, keep
777# unwinding" code. Writing such handler can be a challenge... But it's
778# doable, though requires certain coding convention. Consider following
779# snippet:
780#
781# .type function,@function
782# function:
783# movq %rsp,%rax # copy rsp to volatile register
784# pushq %r15 # save non-volatile registers
785# pushq %rbx
786# pushq %rbp
787# movq %rsp,%r11
788# subq %rdi,%r11 # prepare [variable] stack frame
789# andq $-64,%r11
790# movq %rax,0(%r11) # check for exceptions
791# movq %r11,%rsp # allocate [variable] stack frame
792# movq %rax,0(%rsp) # save original rsp value
793# magic_point:
794# ...
795# movq 0(%rsp),%rcx # pull original rsp value
796# movq -24(%rcx),%rbp # restore non-volatile registers
797# movq -16(%rcx),%rbx
798# movq -8(%rcx),%r15
799# movq %rcx,%rsp # restore original rsp
800# ret
801# .size function,.-function
802#
803# The key is that up to magic_point copy of original rsp value remains
804# in chosen volatile register and no non-volatile register, except for
805# rsp, is modified. While past magic_point rsp remains constant till
806# the very end of the function. In this case custom language-specific
807# exception handler would look like this:
808#
809# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
810# CONTEXT *context,DISPATCHER_CONTEXT *disp)
811# { ULONG64 *rsp = (ULONG64 *)context->Rax;
812# if (context->Rip >= magic_point)
813# { rsp = ((ULONG64 **)context->Rsp)[0];
814# context->Rbp = rsp[-3];
815# context->Rbx = rsp[-2];
816# context->R15 = rsp[-1];
817# }
818# context->Rsp = (ULONG64)rsp;
819# context->Rdi = rsp[1];
820# context->Rsi = rsp[2];
821#
822# memcpy (disp->ContextRecord,context,sizeof(CONTEXT));
823# RtlVirtualUnwind(UNW_FLAG_NHANDLER,disp->ImageBase,
824# dips->ControlPc,disp->FunctionEntry,disp->ContextRecord,
825# &disp->HandlerData,&disp->EstablisherFrame,NULL);
826# return ExceptionContinueSearch;
827# }
828#
829# It's appropriate to implement this handler in assembler, directly in
830# function's module. In order to do that one has to know members'
831# offsets in CONTEXT and DISPATCHER_CONTEXT structures and some constant
832# values. Here they are:
833#
834# CONTEXT.Rax 120
835# CONTEXT.Rcx 128
836# CONTEXT.Rdx 136
837# CONTEXT.Rbx 144
838# CONTEXT.Rsp 152
839# CONTEXT.Rbp 160
840# CONTEXT.Rsi 168
841# CONTEXT.Rdi 176
842# CONTEXT.R8 184
843# CONTEXT.R9 192
844# CONTEXT.R10 200
845# CONTEXT.R11 208
846# CONTEXT.R12 216
847# CONTEXT.R13 224
848# CONTEXT.R14 232
849# CONTEXT.R15 240
850# CONTEXT.Rip 248
851# CONTEXT.Xmm6 512
852# sizeof(CONTEXT) 1232
853# DISPATCHER_CONTEXT.ControlPc 0
854# DISPATCHER_CONTEXT.ImageBase 8
855# DISPATCHER_CONTEXT.FunctionEntry 16
856# DISPATCHER_CONTEXT.EstablisherFrame 24
857# DISPATCHER_CONTEXT.TargetIp 32
858# DISPATCHER_CONTEXT.ContextRecord 40
859# DISPATCHER_CONTEXT.LanguageHandler 48
860# DISPATCHER_CONTEXT.HandlerData 56
861# UNW_FLAG_NHANDLER 0
862# ExceptionContinueSearch 1
863#
864# In order to tie the handler to the function one has to compose
865# couple of structures: one for .xdata segment and one for .pdata.
866#
867# UNWIND_INFO structure for .xdata segment would be
868#
869# function_unwind_info:
870# .byte 9,0,0,0
871# .rva handler
872#
873# This structure designates exception handler for a function with
874# zero-length prologue, no stack frame or frame register.
875#
876# To facilitate composing of .pdata structures, auto-generated "gear"
877# prologue copies rsp value to rax and denotes next instruction with
878# .LSEH_begin_{function_name} label. This essentially defines the SEH
879# styling rule mentioned in the beginning. Position of this label is
880# chosen in such manner that possible exceptions raised in the "gear"
881# prologue would be accounted to caller and unwound from latter's frame.
882# End of function is marked with respective .LSEH_end_{function_name}
883# label. To summarize, .pdata segment would contain
884#
885# .rva .LSEH_begin_function
886# .rva .LSEH_end_function
887# .rva function_unwind_info
888#
889# Reference to functon_unwind_info from .xdata segment is the anchor.
890# In case you wonder why references are 32-bit .rvas and not 64-bit
891# .quads. References put into these two segments are required to be
892# *relative* to the base address of the current binary module, a.k.a.
893# image base. No Win64 module, be it .exe or .dll, can be larger than
894# 2GB and thus such relative references can be and are accommodated in
895# 32 bits.
896#
897# Having reviewed the example function code, one can argue that "movq
898# %rsp,%rax" above is redundant. It is not! Keep in mind that on Unix
899# rax would contain an undefined value. If this "offends" you, use
900# another register and refrain from modifying rax till magic_point is
901# reached, i.e. as if it was a non-volatile register. If more registers
902# are required prior [variable] frame setup is completed, note that
903# nobody says that you can have only one "magic point." You can
904# "liberate" non-volatile registers by denoting last stack off-load
905# instruction and reflecting it in finer grade unwind logic in handler.
906# After all, isn't it why it's called *language-specific* handler...
907#
908# Attentive reader can notice that exceptions would be mishandled in
909# auto-generated "gear" epilogue. Well, exception effectively can't
910# occur there, because if memory area used by it was subject to
911# segmentation violation, then it would be raised upon call to the
912# function (and as already mentioned be accounted to caller, which is
913# not a problem). If you're still not comfortable, then define tail
914# "magic point" just prior ret instruction and have handler treat it...
915#
916# (*) Note that we're talking about run-time, not debug-time. Lack of
917# unwind information makes debugging hard on both Windows and
918# Unix. "Unlike" referes to the fact that on Unix signal handler
919# will always be invoked, core dumped and appropriate exit code
920# returned to parent (for user notification).
diff --git a/src/lib/libcrypto/perlasm/x86asm.pl b/src/lib/libcrypto/perlasm/x86asm.pl
deleted file mode 100644
index 4756a28e59..0000000000
--- a/src/lib/libcrypto/perlasm/x86asm.pl
+++ /dev/null
@@ -1,221 +0,0 @@
1#!/usr/bin/env perl
2
3# require 'x86asm.pl';
4# &asm_init(<flavor>,"des-586.pl"[,$i386only]);
5# &function_begin("foo");
6# ...
7# &function_end("foo");
8# &asm_finish
9
10$out=();
11$i386=0;
12
13# AUTOLOAD is this context has quite unpleasant side effect, namely
14# that typos in function calls effectively go to assembler output,
15# but on the pros side we don't have to implement one subroutine per
16# each opcode...
17sub ::AUTOLOAD
18{ my $opcode = $AUTOLOAD;
19
20 die "more than 4 arguments passed to $opcode" if ($#_>3);
21
22 $opcode =~ s/.*:://;
23 if ($opcode =~ /^push/) { $stack+=4; }
24 elsif ($opcode =~ /^pop/) { $stack-=4; }
25
26 &generic($opcode,@_) or die "undefined subroutine \&$AUTOLOAD";
27}
28
29sub ::emit
30{ my $opcode=shift;
31
32 if ($#_==-1) { push(@out,"\t$opcode\n"); }
33 else { push(@out,"\t$opcode\t".join(',',@_)."\n"); }
34}
35
36sub ::emitraw
37{ my $opcode=shift;
38
39 if ($#_==-1) { push(@out,"$opcode\n"); }
40 else { push(@out,"$opcode\t".join(',',@_)."\n"); }
41}
42
43sub ::LB
44{ $_[0] =~ m/^e?([a-d])x$/o or die "$_[0] does not have a 'low byte'";
45 $1."l";
46}
47sub ::HB
48{ $_[0] =~ m/^e?([a-d])x$/o or die "$_[0] does not have a 'high byte'";
49 $1."h";
50}
51sub ::stack_push{ my $num=$_[0]*4; $stack+=$num; &sub("esp",$num); }
52sub ::stack_pop { my $num=$_[0]*4; $stack-=$num; &add("esp",$num); }
53sub ::blindpop { &pop($_[0]); $stack+=4; }
54sub ::wparam { &DWP($stack+4*$_[0],"esp"); }
55sub ::swtmp { &DWP(4*$_[0],"esp"); }
56
57sub ::bswap
58{ if ($i386) # emulate bswap for i386
59 { &comment("bswap @_");
60 &xchg(&HB(@_),&LB(@_));
61 &ror (@_,16);
62 &xchg(&HB(@_),&LB(@_));
63 }
64 else
65 { &generic("bswap",@_); }
66}
67# These are made-up opcodes introduced over the years essentially
68# by ignorance, just alias them to real ones...
69sub ::movb { &mov(@_); }
70sub ::xorb { &xor(@_); }
71sub ::rotl { &rol(@_); }
72sub ::rotr { &ror(@_); }
73sub ::exch { &xchg(@_); }
74sub ::halt { &hlt; }
75sub ::movz { &movzx(@_); }
76sub ::pushf { &pushfd; }
77sub ::popf { &popfd; }
78
79# 3 argument instructions
80sub ::movq
81{ my($p1,$p2,$optimize)=@_;
82
83 if ($optimize && $p1=~/^mm[0-7]$/ && $p2=~/^mm[0-7]$/)
84 # movq between mmx registers can sink Intel CPUs
85 { &::pshufw($p1,$p2,0xe4); }
86 else
87 { &::generic("movq",@_); }
88}
89
90# label management
91$lbdecor="L"; # local label decoration, set by package
92$label="000";
93
94sub ::islabel # see is argument is a known label
95{ my $i;
96 foreach $i (values %label) { return $i if ($i eq $_[0]); }
97 $label{$_[0]}; # can be undef
98}
99
100sub ::label # instantiate a function-scope label
101{ if (!defined($label{$_[0]}))
102 { $label{$_[0]}="${lbdecor}${label}${_[0]}"; $label++; }
103 $label{$_[0]};
104}
105
106sub ::LABEL # instantiate a file-scope label
107{ $label{$_[0]}=$_[1] if (!defined($label{$_[0]}));
108 $label{$_[0]};
109}
110
111sub ::static_label { &::LABEL($_[0],$lbdecor.$_[0]); }
112
113sub ::set_label_B { push(@out,"@_:\n"); }
114sub ::set_label
115{ my $label=&::label($_[0]);
116 &::align($_[1]) if ($_[1]>1);
117 &::set_label_B($label);
118 $label;
119}
120
121sub ::wipe_labels # wipes function-scope labels
122{ foreach $i (keys %label)
123 { delete $label{$i} if ($label{$i} =~ /^\Q${lbdecor}\E[0-9]{3}/); }
124}
125
126# subroutine management
127sub ::function_begin
128{ &function_begin_B(@_);
129 $stack=4;
130 &push("ebp");
131 &push("ebx");
132 &push("esi");
133 &push("edi");
134}
135
136sub ::function_end
137{ &pop("edi");
138 &pop("esi");
139 &pop("ebx");
140 &pop("ebp");
141 &ret();
142 &function_end_B(@_);
143 $stack=0;
144 &wipe_labels();
145}
146
147sub ::function_end_A
148{ &pop("edi");
149 &pop("esi");
150 &pop("ebx");
151 &pop("ebp");
152 &ret();
153 $stack+=16; # readjust esp as if we didn't pop anything
154}
155
156sub ::asciz
157{ my @str=unpack("C*",shift);
158 push @str,0;
159 while ($#str>15) {
160 &data_byte(@str[0..15]);
161 foreach (0..15) { shift @str; }
162 }
163 &data_byte(@str) if (@str);
164}
165
166sub ::asm_finish
167{ &file_end();
168 print @out;
169}
170
171sub ::asm_init
172{ my ($type,$fn,$cpu)=@_;
173
174 $filename=$fn;
175 $i386=$cpu;
176
177 $elf=$cpp=$coff=$aout=$macosx=$win32=$netware=$mwerks=$openbsd=0;
178 if (($type eq "elf"))
179 { $elf=1; require "x86gas.pl"; }
180 elsif (($type eq "a\.out"))
181 { $aout=1; require "x86gas.pl"; }
182 elsif (($type eq "coff" or $type eq "gaswin"))
183 { $coff=1; require "x86gas.pl"; }
184 elsif (($type eq "win32n"))
185 { $win32=1; require "x86nasm.pl"; }
186 elsif (($type eq "nw-nasm"))
187 { $netware=1; require "x86nasm.pl"; }
188 #elsif (($type eq "nw-mwasm"))
189 #{ $netware=1; $mwerks=1; require "x86nasm.pl"; }
190 elsif (($type eq "win32"))
191 { $win32=1; require "x86masm.pl"; }
192 elsif (($type eq "macosx"))
193 { $aout=1; $macosx=1; require "x86gas.pl"; }
194 elsif (($type eq "openbsd-elf"))
195 { $openbsd=$elf=1; require "x86gas.pl"; }
196 elsif (($type eq "openbsd-a.out"))
197 { $openbsd=1; require "x86gas.pl"; }
198 else
199 { print STDERR <<"EOF";
200Pick one target type from
201 elf - Linux, FreeBSD, Solaris x86, etc.
202 a.out - DJGPP, elder OpenBSD, etc.
203 coff - GAS/COFF such as Win32 targets
204 win32n - Windows 95/Windows NT NASM format
205 openbsd-elf - OpenBSD elf
206 openbsd-a.out - OpenBSD a.out
207 nw-nasm - NetWare NASM format
208 macosx - Mac OS X
209EOF
210 exit(1);
211 }
212
213 $pic=0;
214 for (@ARGV) { $pic=1 if (/\-[fK]PIC/i); }
215
216 ::emitraw("#include <machine/asm.h>\n") if $openbsd;
217 $filename =~ s/\.pl$//;
218 &file($filename);
219}
220
2211;
diff --git a/src/lib/libcrypto/perlasm/x86gas.pl b/src/lib/libcrypto/perlasm/x86gas.pl
deleted file mode 100644
index 15e17f25d0..0000000000
--- a/src/lib/libcrypto/perlasm/x86gas.pl
+++ /dev/null
@@ -1,267 +0,0 @@
1#!/usr/bin/env perl
2
3package x86gas;
4
5*out=\@::out;
6
7$::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($opcode); }
48 elsif ($opcode =~ m/^j/o && $#_==1) { &::emit($opcode,@arg); }
49 elsif ($opcode eq "call" && $#_==1) { &::emit($opcode,@arg); }
50 elsif ($opcode =~ m/^set/&& $#_==1) { &::emit($opcode,@arg); }
51 else { &::emit($opcode.$suffix,@arg);}
52
53 1;
54}
55#
56# opcodes not covered by ::generic above, mostly inconsistent namings...
57#
58sub ::movzx { &::movzb(@_); }
59sub ::pushfd { &::pushfl; }
60sub ::popfd { &::popfl; }
61sub ::cpuid { &::emit(".byte\t0x0f,0xa2"); }
62sub ::rdtsc { &::emit(".byte\t0x0f,0x31"); }
63
64sub ::call { &::emit("call",(&::islabel($_[0]) or "$nmdecor$_[0]")); }
65sub ::call_ptr { &::generic("call","*$_[0]"); }
66sub ::jmp_ptr { &::generic("jmp","*$_[0]"); }
67
68*::bswap = sub { &::emit("bswap","%$_[0]"); } if (!$::i386);
69
70sub ::DWP
71{ my($addr,$reg1,$reg2,$idx)=@_;
72 my $ret="";
73
74 $addr =~ s/^\s+//;
75 # prepend global references with optional underscore
76 $addr =~ s/^([^\+\-0-9][^\+\-]*)/&::islabel($1) or "$nmdecor$1"/ige;
77
78 $reg1 = "%$reg1" if ($reg1);
79 $reg2 = "%$reg2" if ($reg2);
80
81 $ret .= $addr if (($addr ne "") && ($addr ne 0));
82
83 if ($reg2)
84 { $idx!= 0 or $idx=1;
85 $ret .= "($reg1,$reg2,$idx)";
86 }
87 elsif ($reg1)
88 { $ret .= "($reg1)"; }
89
90 $ret;
91}
92sub ::QWP { &::DWP(@_); }
93sub ::BP { &::DWP(@_); }
94sub ::BC { @_; }
95sub ::DWC { @_; }
96
97sub ::file
98{ push(@out,".file\t\"$_[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.$_[0])."\n"); }
150
151sub ::file_end
152{ if (grep {/\b${nmdecor}OPENSSL_ia32cap_P\b/i} @out) {
153 my $tmp=".comm\t${nmdecor}OPENSSL_ia32cap_P,4";
154 if ($::elf) { push (@out,"$tmp,4\n"); }
155 else { push (@out,"$tmp\n"); }
156 }
157 if ($::macosx)
158 { if (%non_lazy_ptr)
159 { push(@out,".section __IMPORT,__pointers,non_lazy_symbol_pointers\n");
160 foreach $i (keys %non_lazy_ptr)
161 { push(@out,"$non_lazy_ptr{$i}:\n.indirect_symbol\t$i\n.long\t0\n"); }
162 }
163 }
164 push(@out,$initseg) if ($initseg);
165}
166
167sub ::data_byte { push(@out,".byte\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
180sub ::picmeup
181{ my($dst,$sym,$base,$reflabel)=@_;
182
183 if ($::openbsd)
184 { &::emitraw("#ifdef PIC");
185 &::emitraw("PIC_PROLOGUE");
186 &::mov($dst, &::DWP("PIC_GOT($sym)"));
187 &::emitraw("PIC_EPILOGUE");
188 &::emitraw("#else /* PIC */");
189 &::lea($dst,&::DWP($sym));
190 &::emitraw("#endif /* PIC */");
191 }
192 elsif ($::pic && ($::elf || $::aout))
193 { if (!defined($base))
194 { &::call(&::label("PIC_me_up"));
195 &::set_label("PIC_me_up");
196 &::blindpop($dst);
197 $base=$dst;
198 $reflabel=&::label("PIC_me_up");
199 }
200 if ($::macosx)
201 { my $indirect=&::static_label("$nmdecor$sym\$non_lazy_ptr");
202 &::mov($dst,&::DWP("$indirect-$reflabel",$base));
203 $non_lazy_ptr{"$nmdecor$sym"}=$indirect;
204 }
205 else
206 { &::lea($dst,&::DWP("_GLOBAL_OFFSET_TABLE_+[.-$reflabel]",
207 $base));
208 &::mov($dst,&::DWP("$sym\@GOT",$dst));
209 }
210 }
211 else
212 { &::lea($dst,&::DWP($sym)); }
213}
214
215sub ::initseg
216{ my $f=$nmdecor.shift;
217
218 if ($::openbsd)
219 { $initseg.=<<___;
220.section .init
221PIC_PROLOGUE
222 call PIC_PLT($f)
223PIC_EPILOGUE
224 jmp .Linitalign
225.align $align
226.Linitalign:
227___
228 }
229 elsif ($::elf)
230 { $initseg.=<<___;
231.section .init
232 call $f
233 jmp .Linitalign
234.align $align
235.Linitalign:
236___
237 }
238 elsif ($::coff)
239 { $initseg.=<<___; # applies to both Cygwin and Mingw
240.section .ctors
241.long $f
242___
243 }
244 elsif ($::macosx)
245 { $initseg.=<<___;
246.mod_init_func
247.align 2
248.long $f
249___
250 }
251 elsif ($::aout)
252 { my $ctor="${nmdecor}_GLOBAL_\$I\$$f";
253 $initseg.=".text\n";
254 $initseg.=".type $ctor,\@function\n" if ($::pic);
255 $initseg.=<<___; # OpenBSD way...
256.globl $ctor
257.align 2
258$ctor:
259 jmp $f
260___
261 }
262}
263
264sub ::dataseg
265{ push(@out,".data\n"); }
266
2671;
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-03-20 00:38:41 +0000