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authorcvs2svn <admin@example.com>2025-04-14 17:32:06 +0000
committercvs2svn <admin@example.com>2025-04-14 17:32:06 +0000
commiteb8dd9dca1228af0cd132f515509051ecfabf6f6 (patch)
treeedb6da6af7e865d488dc1a29309f1e1ec226e603 /src/lib/libcrypto/perlasm
parent247f0352e0ed72a4f476db9dc91f4d982bc83eb2 (diff)
downloadopenbsd-tb_20250414.tar.gz
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Diffstat (limited to 'src/lib/libcrypto/perlasm')
-rw-r--r--src/lib/libcrypto/perlasm/cbc.pl331
-rwxr-xr-xsrc/lib/libcrypto/perlasm/ppc-xlate.pl159
-rw-r--r--src/lib/libcrypto/perlasm/readme124
-rwxr-xr-xsrc/lib/libcrypto/perlasm/x86_64-xlate.pl1105
-rw-r--r--src/lib/libcrypto/perlasm/x86asm.pl257
-rw-r--r--src/lib/libcrypto/perlasm/x86gas.pl315
6 files changed, 0 insertions, 2291 deletions
diff --git a/src/lib/libcrypto/perlasm/cbc.pl b/src/lib/libcrypto/perlasm/cbc.pl
deleted file mode 100644
index 392f23e145..0000000000
--- a/src/lib/libcrypto/perlasm/cbc.pl
+++ /dev/null
@@ -1,331 +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,$p3)=@_;
29 # name is the function name
30 # enc_func and dec_func and the functions to call for encrypt/decrypt
31 # swap is true if byte order needs to be reversed
32 # iv_off is parameter number for the iv
33 # enc_off is parameter number for the encrypt/decrypt flag
34 # p1,p2,p3 are the offsets for parameters to be passed to the
35 # underlying calls.
36
37&static_label("cbc_enc_jmp_table_".$name);
38&static_label("ej1_".$name);
39&static_label("ej2_".$name);
40&static_label("ej3_".$name);
41&static_label("ej4_".$name);
42&static_label("ej5_".$name);
43&static_label("ej6_".$name);
44&static_label("ej7_".$name);
45
46 &function_begin_B($name,"");
47 &comment("");
48
49 $in="esi";
50 $out="edi";
51 $count="ebp";
52
53 &push("ebp");
54 &push("ebx");
55 &push("esi");
56 &push("edi");
57
58 $data_off=4;
59 $data_off+=4 if ($p1 > 0);
60 $data_off+=4 if ($p2 > 0);
61 $data_off+=4 if ($p3 > 0);
62
63 &mov($count, &wparam(2)); # length
64
65 &comment("getting iv ptr from parameter $iv_off");
66 &mov("ebx", &wparam($iv_off)); # Get iv ptr
67
68 &mov($in, &DWP(0,"ebx","",0));# iv[0]
69 &mov($out, &DWP(4,"ebx","",0));# iv[1]
70
71 &push($out);
72 &push($in);
73 &push($out); # used in decrypt for iv[1]
74 &push($in); # used in decrypt for iv[0]
75
76 &mov("ebx", "esp"); # This is the address of tin[2]
77
78 &mov($in, &wparam(0)); # in
79 &mov($out, &wparam(1)); # out
80
81 # We have loaded them all, how lets push things
82 &comment("getting encrypt flag from parameter $enc_off");
83 &mov("ecx", &wparam($enc_off)); # Get enc flag
84 if ($p3 > 0)
85 {
86 &comment("get and push parameter $p3");
87 if ($enc_off != $p3)
88 { &mov("eax", &wparam($p3)); &push("eax"); }
89 else { &push("ecx"); }
90 }
91 if ($p2 > 0)
92 {
93 &comment("get and push parameter $p2");
94 if ($enc_off != $p2)
95 { &mov("eax", &wparam($p2)); &push("eax"); }
96 else { &push("ecx"); }
97 }
98 if ($p1 > 0)
99 {
100 &comment("get and push parameter $p1");
101 if ($enc_off != $p1)
102 { &mov("eax", &wparam($p1)); &push("eax"); }
103 else { &push("ecx"); }
104 }
105 &push("ebx"); # push data/iv
106
107 &cmp("ecx",0);
108 &jz(&label("decrypt"));
109
110 &and($count,0xfffffff8);
111 &mov("eax", &DWP($data_off,"esp","",0)); # load iv[0]
112 &mov("ebx", &DWP($data_off+4,"esp","",0)); # load iv[1]
113
114 &jz(&label("encrypt_finish"));
115
116 #############################################################
117
118 &set_label("encrypt_loop");
119 # encrypt start
120 # "eax" and "ebx" hold iv (or the last cipher text)
121
122 &mov("ecx", &DWP(0,$in,"",0)); # load first 4 bytes
123 &mov("edx", &DWP(4,$in,"",0)); # second 4 bytes
124
125 &xor("eax", "ecx");
126 &xor("ebx", "edx");
127
128 &bswap("eax") if $swap;
129 &bswap("ebx") if $swap;
130
131 &mov(&DWP($data_off,"esp","",0), "eax"); # put in array for call
132 &mov(&DWP($data_off+4,"esp","",0), "ebx"); #
133
134 &call($enc_func);
135
136 &mov("eax", &DWP($data_off,"esp","",0));
137 &mov("ebx", &DWP($data_off+4,"esp","",0));
138
139 &bswap("eax") if $swap;
140 &bswap("ebx") if $swap;
141
142 &mov(&DWP(0,$out,"",0),"eax");
143 &mov(&DWP(4,$out,"",0),"ebx");
144
145 # eax and ebx are the next iv.
146
147 &add($in, 8);
148 &add($out, 8);
149
150 &sub($count, 8);
151 &jnz(&label("encrypt_loop"));
152
153###################################################################3
154 &set_label("encrypt_finish");
155 &mov($count, &wparam(2)); # length
156 &and($count, 7);
157 &jz(&label("finish"));
158
159 &picsetup("edx");
160 &picsymbol("ecx", &label("cbc_enc_jmp_table_".$name), "edx")
161 &mov($count,&DWP(0,"ecx",$count,4));
162 &picadjust($count, "edx");
163
164 &xor("ecx","ecx");
165 &xor("edx","edx");
166 &jmp_ptr($count);
167
168&set_label("ej7_".$name);
169 &movb(&HB("edx"), &BP(6,$in,"",0));
170 &shl("edx",8);
171&set_label("ej6_".$name);
172 &movb(&HB("edx"), &BP(5,$in,"",0));
173&set_label("ej5_".$name);
174 &movb(&LB("edx"), &BP(4,$in,"",0));
175&set_label("ej4_".$name);
176 &mov("ecx", &DWP(0,$in,"",0));
177 &jmp(&label("ejend"));
178&set_label("ej3_".$name);
179 &movb(&HB("ecx"), &BP(2,$in,"",0));
180 &shl("ecx",8);
181&set_label("ej2_".$name);
182 &movb(&HB("ecx"), &BP(1,$in,"",0));
183&set_label("ej1_".$name);
184 &movb(&LB("ecx"), &BP(0,$in,"",0));
185&set_label("ejend");
186
187 &xor("eax", "ecx");
188 &xor("ebx", "edx");
189
190 &bswap("eax") if $swap;
191 &bswap("ebx") if $swap;
192
193 &mov(&DWP($data_off,"esp","",0), "eax"); # put in array for call
194 &mov(&DWP($data_off+4,"esp","",0), "ebx"); #
195
196 &call($enc_func);
197
198 &mov("eax", &DWP($data_off,"esp","",0));
199 &mov("ebx", &DWP($data_off+4,"esp","",0));
200
201 &bswap("eax") if $swap;
202 &bswap("ebx") if $swap;
203
204 &mov(&DWP(0,$out,"",0),"eax");
205 &mov(&DWP(4,$out,"",0),"ebx");
206
207 &jmp(&label("finish"));
208
209 #############################################################
210 #############################################################
211 &set_label("decrypt",1);
212 # decrypt start
213 &and($count,0xfffffff8);
214 # The next 2 instructions are only for if the jz is taken
215 &mov("eax", &DWP($data_off+8,"esp","",0)); # get iv[0]
216 &mov("ebx", &DWP($data_off+12,"esp","",0)); # get iv[1]
217 &jz(&label("decrypt_finish"));
218
219 &set_label("decrypt_loop");
220 &mov("eax", &DWP(0,$in,"",0)); # load first 4 bytes
221 &mov("ebx", &DWP(4,$in,"",0)); # second 4 bytes
222
223 &bswap("eax") if $swap;
224 &bswap("ebx") if $swap;
225
226 &mov(&DWP($data_off,"esp","",0), "eax"); # put back
227 &mov(&DWP($data_off+4,"esp","",0), "ebx"); #
228
229 &call($dec_func);
230
231 &mov("eax", &DWP($data_off,"esp","",0)); # get return
232 &mov("ebx", &DWP($data_off+4,"esp","",0)); #
233
234 &bswap("eax") if $swap;
235 &bswap("ebx") if $swap;
236
237 &mov("ecx", &DWP($data_off+8,"esp","",0)); # get iv[0]
238 &mov("edx", &DWP($data_off+12,"esp","",0)); # get iv[1]
239
240 &xor("ecx", "eax");
241 &xor("edx", "ebx");
242
243 &mov("eax", &DWP(0,$in,"",0)); # get old cipher text,
244 &mov("ebx", &DWP(4,$in,"",0)); # next iv actually
245
246 &mov(&DWP(0,$out,"",0),"ecx");
247 &mov(&DWP(4,$out,"",0),"edx");
248
249 &mov(&DWP($data_off+8,"esp","",0), "eax"); # save iv
250 &mov(&DWP($data_off+12,"esp","",0), "ebx"); #
251
252 &add($in, 8);
253 &add($out, 8);
254
255 &sub($count, 8);
256 &jnz(&label("decrypt_loop"));
257############################ ENDIT #######################3
258 &set_label("decrypt_finish");
259 &mov($count, &wparam(2)); # length
260 &and($count, 7);
261 &jz(&label("finish"));
262
263 &mov("eax", &DWP(0,$in,"",0)); # load first 4 bytes
264 &mov("ebx", &DWP(4,$in,"",0)); # second 4 bytes
265
266 &bswap("eax") if $swap;
267 &bswap("ebx") if $swap;
268
269 &mov(&DWP($data_off,"esp","",0), "eax"); # put back
270 &mov(&DWP($data_off+4,"esp","",0), "ebx"); #
271
272 &call($dec_func);
273
274 &mov("eax", &DWP($data_off,"esp","",0)); # get return
275 &mov("ebx", &DWP($data_off+4,"esp","",0)); #
276
277 &bswap("eax") if $swap;
278 &bswap("ebx") if $swap;
279
280 &mov("ecx", &DWP($data_off+8,"esp","",0)); # get iv[0]
281 &mov("edx", &DWP($data_off+12,"esp","",0)); # get iv[1]
282
283 &xor("ecx", "eax");
284 &xor("edx", "ebx");
285
286 # this is for when we exit
287 &mov("eax", &DWP(0,$in,"",0)); # get old cipher text,
288 &mov("ebx", &DWP(4,$in,"",0)); # next iv actually
289
290 &rotr("edx", 16);
291 &movb(&BP(6,$out,"",0), &LB("edx"));
292 &shr("edx",16);
293 &movb(&BP(5,$out,"",0), &HB("edx"));
294 &movb(&BP(4,$out,"",0), &LB("edx"));
295 &mov(&DWP(0,$out,"",0), "ecx");
296
297 # final iv is still in eax:ebx
298
299############################ FINISH #######################3
300 &set_label("finish",1);
301 &mov("ecx", &wparam($iv_off)); # Get iv ptr
302
303 #################################################
304 $total=16+4;
305 $total+=4 if ($p1 > 0);
306 $total+=4 if ($p2 > 0);
307 $total+=4 if ($p3 > 0);
308 &add("esp",$total);
309
310 &mov(&DWP(0,"ecx","",0), "eax"); # save iv
311 &mov(&DWP(4,"ecx","",0), "ebx"); # save iv
312
313 &function_end_A($name);
314 &function_end_B($name);
315
316 &rodataseg();
317 &align(64);
318 &set_label("cbc_enc_jmp_table_".$name);
319 &data_word("0");
320 &data_word(&code_sym(&label("ej1_".$name)));
321 &data_word(&code_sym(&label("ej2_".$name)));
322 &data_word(&code_sym(&label("ej3_".$name)));
323 &data_word(&code_sym(&label("ej4_".$name)));
324 &data_word(&code_sym(&label("ej5_".$name)));
325 &data_word(&code_sym(&label("ej6_".$name)));
326 &data_word(&code_sym(&label("ej7_".$name)));
327 &previous();
328
329 }
330
3311;
diff --git a/src/lib/libcrypto/perlasm/ppc-xlate.pl b/src/lib/libcrypto/perlasm/ppc-xlate.pl
deleted file mode 100755
index a3edd982b6..0000000000
--- a/src/lib/libcrypto/perlasm/ppc-xlate.pl
+++ /dev/null
@@ -1,159 +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 .= ".align 3\n";
38 $ret .= "$name:\n";
39 $ret .= ".quad .$name,.TOC.\@tocbase,0\n";
40 $ret .= ".size $name,24\n";
41 $ret .= ".previous\n";
42
43 $name = ".$name";
44 last;
45 };
46 }
47
48 $ret = ".globl $name" if (!$ret);
49 $$global = $name;
50 $ret;
51};
52my $text = sub {
53 ($flavour =~ /aix/) ? ".csect" : ".text";
54};
55my $machine = sub {
56 my $junk = shift;
57 my $arch = shift;
58 if ($flavour =~ /osx/)
59 { $arch =~ s/\"//g;
60 $arch = ($flavour=~/64/) ? "ppc970-64" : "ppc970" if ($arch eq "any");
61 }
62 ".machine $arch";
63};
64my $size = sub {
65 if ($flavour =~ /linux.*32/)
66 { shift;
67 ".size " . join(",",@_);
68 }
69 else
70 { ""; }
71};
72my $asciz = sub {
73 shift;
74 my $line = join(",",@_);
75 if ($line =~ /^"(.*)"$/)
76 { ".byte " . join(",",unpack("C*",$1),0) . "\n.align 2"; }
77 else
78 { ""; }
79};
80
81################################################################
82# simplified mnemonics not handled by at least one assembler
83################################################################
84my $cmplw = sub {
85 my $f = shift;
86 my $cr = 0; $cr = shift if ($#_>1);
87 # Some out-of-date 32-bit GNU assembler just can't handle cmplw...
88 ($flavour =~ /linux.*32/) ?
89 " .long ".sprintf "0x%x",31<<26|$cr<<23|$_[0]<<16|$_[1]<<11|64 :
90 " cmplw ".join(',',$cr,@_);
91};
92my $bdnz = sub {
93 my $f = shift;
94 my $bo = $f=~/[\+\-]/ ? 16+9 : 16; # optional "to be taken" hint
95 " bc $bo,0,".shift;
96} if ($flavour!~/linux/);
97my $bltlr = sub {
98 my $f = shift;
99 my $bo = $f=~/\-/ ? 12+2 : 12; # optional "not to be taken" hint
100 ($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints
101 " .long ".sprintf "0x%x",19<<26|$bo<<21|16<<1 :
102 " bclr $bo,0";
103};
104my $bnelr = sub {
105 my $f = shift;
106 my $bo = $f=~/\-/ ? 4+2 : 4; # optional "not to be taken" hint
107 ($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};
111my $beqlr = sub {
112 my $f = shift;
113 my $bo = $f=~/-/ ? 12+2 : 12; # optional "not to be taken" hint
114 ($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints
115 " .long ".sprintf "0x%X",19<<26|$bo<<21|2<<16|16<<1 :
116 " bclr $bo,2";
117};
118# GNU assembler can't handle extrdi rA,rS,16,48, or when sum of last two
119# arguments is 64, with "operand out of range" error.
120my $extrdi = sub {
121 my ($f,$ra,$rs,$n,$b) = @_;
122 $b = ($b+$n)&63; $n = 64-$n;
123 " rldicl $ra,$rs,$b,$n";
124};
125
126while($line=<>) {
127
128 $line =~ s|[#!;].*$||; # get rid of asm-style comments...
129 $line =~ s|/\*.*\*/||; # ... and C-style comments...
130 $line =~ s|^\s+||; # ... and skip white spaces in beginning...
131 $line =~ s|\s+$||; # ... and at the end
132
133 {
134 $line =~ s|\b\.L(\w+)|L$1|g; # common denominator for Locallabel
135 $line =~ s|\bL(\w+)|\.L$1|g if ($dotinlocallabels);
136 }
137
138 {
139 $line =~ s|(^[\.\w]+)\:\s*||;
140 my $label = $1;
141 printf "%s:",($GLOBALS{$label} or $label) if ($label);
142 }
143
144 {
145 $line =~ s|^\s*(\.?)(\w+)([\.\+\-]?)\s*||;
146 my $c = $1; $c = "\t" if ($c eq "");
147 my $mnemonic = $2;
148 my $f = $3;
149 my $opcode = eval("\$$mnemonic");
150 $line =~ s|\bc?[rf]([0-9]+)\b|$1|g if ($c ne "." and $flavour !~ /osx/);
151 if (ref($opcode) eq 'CODE') { $line = &$opcode($f,split(',',$line)); }
152 elsif ($mnemonic) { $line = $c.$mnemonic.$f."\t".$line; }
153 }
154
155 print $line if ($line);
156 print "\n";
157}
158
159close STDOUT;
diff --git a/src/lib/libcrypto/perlasm/readme b/src/lib/libcrypto/perlasm/readme
deleted file mode 100644
index a7876bcc95..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 original 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 assembler
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 1e54753123..0000000000
--- a/src/lib/libcrypto/perlasm/x86_64-xlate.pl
+++ /dev/null
@@ -1,1105 +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 $flavour; }
64
65open STDOUT,">$output" || die "can't open $output: $!"
66 if (defined($output));
67
68my $gas=1; $gas=0 if ($output =~ /\.asm$/);
69my $elf=1; $elf=0 if (!$gas);
70my $win64=0;
71my $prefix="";
72my $decor=".L";
73
74my $masmref=8 + 50727*2**-32; # 8.00.50727 shipped with VS2005
75my $masm=0;
76my $PTR=" PTR";
77
78my $nasmref=2.03;
79my $nasm=0;
80
81if ($flavour eq "mingw64") { $gas=1; $elf=0; $win64=1;
82 $prefix=`echo __USER_LABEL_PREFIX__ | $ENV{CC} -E -P -`;
83 chomp($prefix);
84 }
85elsif ($flavour eq "macosx") { $gas=1; $elf=0; $prefix="_"; $decor="L\$"; }
86elsif ($flavour eq "masm") { $gas=0; $elf=0; $masm=$masmref; $win64=1; $decor="\$L\$"; }
87elsif ($flavour eq "nasm") { $gas=0; $elf=0; $nasm=$nasmref; $win64=1; $decor="\$L\$"; $PTR=""; }
88elsif (!$gas)
89{ if ($ENV{ASM} =~ m/nasm/ && `nasm -v` =~ m/version ([0-9]+)\.([0-9]+)/i)
90 { $nasm = $1 + $2*0.01; $PTR=""; }
91 elsif (`ml64 2>&1` =~ m/Version ([0-9]+)\.([0-9]+)(\.([0-9]+))?/)
92 { $masm = $1 + $2*2**-16 + $4*2**-32; }
93 die "no assembler found on %PATH" if (!($nasm || $masm));
94 $win64=1;
95 $elf=0;
96 $decor="\$L\$";
97}
98
99my $current_segment;
100my $current_function;
101my %globals;
102
103{ package opcode; # pick up opcodes
104 sub re {
105 my $self = shift; # single instance in enough...
106 local *line = shift;
107 undef $ret;
108
109 if ($line =~ /^([a-z][a-z0-9]*)/i) {
110 $self->{op} = $1;
111 $ret = $self;
112 $line = substr($line,@+[0]); $line =~ s/^\s+//;
113
114 undef $self->{sz};
115 if ($self->{op} =~ /^(movz)x?([bw]).*/) { # movz is pain...
116 $self->{op} = $1;
117 $self->{sz} = $2;
118 } elsif ($self->{op} =~ /call|jmp/) {
119 $self->{sz} = "";
120 } elsif ($self->{op} =~ /^p/ && $' !~ /^(ush|op|insrw)/) { # SSEn
121 $self->{sz} = "";
122 } elsif ($self->{op} =~ /^v/) { # VEX
123 $self->{sz} = "";
124 } elsif ($self->{op} =~ /mov[dq]/ && $line =~ /%xmm/) {
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 $epilogue . "retq";
153 } elsif ($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 $self->{asterisk} = $1;
220 $self->{label} = $2;
221 ($self->{base},$self->{index},$self->{scale})=split(/,/,$3);
222 $self->{scale} = 1 if (!defined($self->{scale}));
223 $ret = $self;
224 $line = substr($line,@+[0]); $line =~ s/^\s+//;
225
226 if ($win64 && $self->{label} =~ s/\@GOTPCREL//) {
227 die if (opcode->mnemonic() ne "mov");
228 opcode->mnemonic("lea");
229 }
230 $self->{base} =~ s/^%//;
231 $self->{index} =~ s/^%// if (defined($self->{index}));
232 }
233 $ret;
234 }
235 sub size {}
236 sub out {
237 my $self = shift;
238 my $sz = shift;
239
240 $self->{label} =~ s/([_a-z][_a-z0-9]*)/$globals{$1} or $1/gei;
241 $self->{label} =~ s/\.L/$decor/g;
242
243 # Silently convert all EAs to 64-bit. This is required for
244 # elder GNU assembler and results in more compact code,
245 # *but* most importantly AES module depends on this feature!
246 $self->{index} =~ s/^[er](.?[0-9xpi])[d]?$/r\1/;
247 $self->{base} =~ s/^[er](.?[0-9xpi])[d]?$/r\1/;
248
249 # Solaris /usr/ccs/bin/as can't handle multiplications
250 # in $self->{label}, new gas requires sign extension...
251 use integer;
252 $self->{label} =~ s/(?<![\w\$\.])(0x?[0-9a-f]+)/oct($1)/egi;
253 $self->{label} =~ s/([0-9]+\s*[\*\/\%]\s*[0-9]+)/eval($1)/eg;
254 $self->{label} =~ s/([0-9]+)/$1<<32>>32/eg;
255
256 if ($gas) {
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},
262 $self->{base}?"%$self->{base}":"",
263 $self->{index},$self->{scale};
264 } else {
265 sprintf "%s%s(%%%s)", $self->{asterisk},$self->{label},$self->{base};
266 }
267 } else {
268 %szmap = ( b=>"BYTE$PTR", w=>"WORD$PTR", l=>"DWORD$PTR",
269 q=>"QWORD$PTR",o=>"OWORD$PTR",x=>"XMMWORD$PTR" );
270
271 $self->{label} =~ s/\./\$/g;
272 $self->{label} =~ s/(?<![\w\$\.])0x([0-9a-f]+)/0$1h/ig;
273 $self->{label} = "($self->{label})" if ($self->{label} =~ /[\*\+\-\/]/);
274 $sz="q" if ($self->{asterisk} || opcode->mnemonic() eq "movq");
275 $sz="l" if (opcode->mnemonic() eq "movd");
276
277 if (defined($self->{index})) {
278 sprintf "%s[%s%s*%d%s]",$szmap{$sz},
279 $self->{label}?"$self->{label}+":"",
280 $self->{index},$self->{scale},
281 $self->{base}?"+$self->{base}":"";
282 } elsif ($self->{base} eq "rip") {
283 sprintf "%s[%s]",$szmap{$sz},$self->{label};
284 } else {
285 sprintf "%s[%s%s]",$szmap{$sz},
286 $self->{label}?"$self->{label}+":"",
287 $self->{base};
288 }
289 }
290 }
291}
292{ package register; # pick up registers, which start with %.
293 sub re {
294 my $class = shift; # multiple instances...
295 my $self = {};
296 local *line = shift;
297 undef $ret;
298
299 # optional * ---vvv--- appears in indirect jmp/call
300 if ($line =~ /^(\*?)%(\w+)/) {
301 bless $self,$class;
302 $self->{asterisk} = $1;
303 $self->{value} = $2;
304 $ret = $self;
305 $line = substr($line,@+[0]); $line =~ s/^\s+//;
306 }
307 $ret;
308 }
309 sub size {
310 my $self = shift;
311 undef $ret;
312
313 if ($self->{value} =~ /^r[\d]+b$/i) { $ret="b"; }
314 elsif ($self->{value} =~ /^r[\d]+w$/i) { $ret="w"; }
315 elsif ($self->{value} =~ /^r[\d]+d$/i) { $ret="l"; }
316 elsif ($self->{value} =~ /^r[\w]+$/i) { $ret="q"; }
317 elsif ($self->{value} =~ /^[a-d][hl]$/i){ $ret="b"; }
318 elsif ($self->{value} =~ /^[\w]{2}l$/i) { $ret="b"; }
319 elsif ($self->{value} =~ /^[\w]{2}$/i) { $ret="w"; }
320 elsif ($self->{value} =~ /^e[a-z]{2}$/i){ $ret="l"; }
321
322 $ret;
323 }
324 sub out {
325 my $self = shift;
326 if ($gas) { sprintf "%s%%%s",$self->{asterisk},$self->{value}; }
327 else { $self->{value}; }
328 }
329}
330{ package label; # pick up labels, which end with :
331 sub re {
332 my $self = shift; # single instance is enough...
333 local *line = shift;
334 undef $ret;
335
336 if ($line =~ /(^[\.\w]+)\:/) {
337 $self->{value} = $1;
338 $ret = $self;
339 $line = substr($line,@+[0]); $line =~ s/^\s+//;
340
341 $self->{value} =~ s/^\.L/$decor/;
342 }
343 $ret;
344 }
345 sub out {
346 my $self = shift;
347
348 if ($gas) {
349 my $func = ($globals{$self->{value}} or $self->{value}) . ":";
350 if ($win64 &&
351 $current_function->{name} eq $self->{value} &&
352 $current_function->{abi} eq "svr4") {
353 $func .= "\n";
354 $func .= " movq %rdi,8(%rsp)\n";
355 $func .= " movq %rsi,16(%rsp)\n";
356 $func .= " movq %rsp,%rax\n";
357 $func .= "${decor}SEH_begin_$current_function->{name}:\n";
358 my $narg = $current_function->{narg};
359 $narg=6 if (!defined($narg));
360 $func .= " movq %rcx,%rdi\n" if ($narg>0);
361 $func .= " movq %rdx,%rsi\n" if ($narg>1);
362 $func .= " movq %r8,%rdx\n" if ($narg>2);
363 $func .= " movq %r9,%rcx\n" if ($narg>3);
364 $func .= " movq 40(%rsp),%r8\n" if ($narg>4);
365 $func .= " movq 48(%rsp),%r9\n" if ($narg>5);
366 }
367 $func;
368 } elsif ($self->{value} ne "$current_function->{name}") {
369 $self->{value} .= ":" if ($masm && $ret!~m/^\$/);
370 $self->{value} . ":";
371 } elsif ($win64 && $current_function->{abi} eq "svr4") {
372 my $func = "$current_function->{name}" .
373 ($nasm ? ":" : "\tPROC $current_function->{scope}") .
374 "\n";
375 $func .= " mov QWORD${PTR}[8+rsp],rdi\t;WIN64 prologue\n";
376 $func .= " mov QWORD${PTR}[16+rsp],rsi\n";
377 $func .= " mov rax,rsp\n";
378 $func .= "${decor}SEH_begin_$current_function->{name}:";
379 $func .= ":" if ($masm);
380 $func .= "\n";
381 my $narg = $current_function->{narg};
382 $narg=6 if (!defined($narg));
383 $func .= " mov rdi,rcx\n" if ($narg>0);
384 $func .= " mov rsi,rdx\n" if ($narg>1);
385 $func .= " mov rdx,r8\n" if ($narg>2);
386 $func .= " mov rcx,r9\n" if ($narg>3);
387 $func .= " mov r8,QWORD${PTR}[40+rsp]\n" if ($narg>4);
388 $func .= " mov r9,QWORD${PTR}[48+rsp]\n" if ($narg>5);
389 $func .= "\n";
390 } else {
391 "$current_function->{name}".
392 ($nasm ? ":" : "\tPROC $current_function->{scope}");
393 }
394 }
395}
396{ package expr; # pick up expressions
397 sub re {
398 my $self = shift; # single instance is enough...
399 local *line = shift;
400 undef $ret;
401
402 if ($line =~ /(^[^,]+)/) {
403 $self->{value} = $1;
404 $ret = $self;
405 $line = substr($line,@+[0]); $line =~ s/^\s+//;
406
407 $self->{value} =~ s/\@PLT// if (!$elf);
408 $self->{value} =~ s/([_a-z][_a-z0-9]*)/$globals{$1} or $1/gei;
409 $self->{value} =~ s/\.L/$decor/g;
410 }
411 $ret;
412 }
413 sub out {
414 my $self = shift;
415 if ($nasm && opcode->mnemonic()=~m/^j/) {
416 "NEAR ".$self->{value};
417 } else {
418 $self->{value};
419 }
420 }
421}
422{ package directive; # pick up directives, which start with .
423 sub re {
424 my $self = shift; # single instance is enough...
425 local *line = shift;
426 undef $ret;
427 my $dir;
428 my %opcode = # lea 2f-1f(%rip),%dst; 1: nop; 2:
429 ( "%rax"=>0x01058d48, "%rcx"=>0x010d8d48,
430 "%rdx"=>0x01158d48, "%rbx"=>0x011d8d48,
431 "%rsp"=>0x01258d48, "%rbp"=>0x012d8d48,
432 "%rsi"=>0x01358d48, "%rdi"=>0x013d8d48,
433 "%r8" =>0x01058d4c, "%r9" =>0x010d8d4c,
434 "%r10"=>0x01158d4c, "%r11"=>0x011d8d4c,
435 "%r12"=>0x01258d4c, "%r13"=>0x012d8d4c,
436 "%r14"=>0x01358d4c, "%r15"=>0x013d8d4c );
437
438 if ($line =~ /^\s*(\.\w+)/) {
439 $dir = $1;
440 $ret = $self;
441 undef $self->{value};
442 $line = substr($line,@+[0]); $line =~ s/^\s+//;
443
444 SWITCH: for ($dir) {
445 /\.picmeup/ && do { if ($line =~ /(%r[\w]+)/i) {
446 $dir="\t.long";
447 $line=sprintf "0x%x,0x90000000",$opcode{$1};
448 }
449 last;
450 };
451 /\.global|\.globl|\.extern/
452 && do { $globals{$line} = $prefix . $line;
453 $line = $globals{$line} if ($prefix);
454 last;
455 };
456 /\.type/ && do { ($sym,$type,$narg) = split(',',$line);
457 if ($type eq "\@function") {
458 undef $current_function;
459 $current_function->{name} = $sym;
460 $current_function->{abi} = "svr4";
461 $current_function->{narg} = $narg;
462 $current_function->{scope} = defined($globals{$sym})?"PUBLIC":"PRIVATE";
463 } elsif ($type eq "\@abi-omnipotent") {
464 undef $current_function;
465 $current_function->{name} = $sym;
466 $current_function->{scope} = defined($globals{$sym})?"PUBLIC":"PRIVATE";
467 }
468 $line =~ s/\@abi\-omnipotent/\@function/;
469 $line =~ s/\@function.*/\@function/;
470 last;
471 };
472 /\.asciz/ && do { if ($line =~ /^"(.*)"$/) {
473 $dir = ".byte";
474 $line = join(",",unpack("C*",$1),0);
475 }
476 last;
477 };
478 /\.rva|\.long|\.quad/
479 && do { $line =~ s/([_a-z][_a-z0-9]*)/$globals{$1} or $1/gei;
480 $line =~ s/\.L/$decor/g;
481 last;
482 };
483 }
484
485 if ($gas) {
486 $self->{value} = $dir . "\t" . $line;
487
488 if ($dir =~ /\.extern/) {
489 $self->{value} = ""; # swallow extern
490 } elsif (!$elf && $dir =~ /\.type/) {
491 $self->{value} = "";
492 $self->{value} = ".def\t" . ($globals{$1} or $1) . ";\t" .
493 (defined($globals{$1})?".scl 2;":".scl 3;") .
494 "\t.type 32;\t.endef"
495 if ($win64 && $line =~ /([^,]+),\@function/);
496 } elsif (!$elf && $dir =~ /\.size/) {
497 $self->{value} = "";
498 if (defined($current_function)) {
499 $self->{value} .= "${decor}SEH_end_$current_function->{name}:"
500 if ($win64 && $current_function->{abi} eq "svr4");
501 undef $current_function;
502 }
503 } elsif (!$elf && $dir =~ /\.align/) {
504 $self->{value} = ".p2align\t" . (log($line)/log(2));
505 } elsif ($dir eq ".section") {
506 $current_segment=$line;
507 if (!$elf && $current_segment eq ".rodata") {
508 if ($flavour eq "macosx") { $self->{value} = ".section\t__DATA,__const"; }
509 }
510 if (!$elf && $current_segment eq ".init") {
511 if ($flavour eq "macosx") { $self->{value} = ".mod_init_func"; }
512 elsif ($flavour eq "mingw64") { $self->{value} = ".section\t.ctors"; }
513 }
514 } elsif ($dir =~ /\.(text|data)/) {
515 $current_segment=".$1";
516 } elsif ($dir =~ /\.hidden/) {
517 if ($flavour eq "macosx") { $self->{value} = ".private_extern\t$prefix$line"; }
518 elsif ($flavour eq "mingw64") { $self->{value} = ""; }
519 } elsif ($dir =~ /\.comm/) {
520 $self->{value} = "$dir\t$prefix$line";
521 $self->{value} =~ s|,([0-9]+),([0-9]+)$|",$1,".log($2)/log(2)|e if ($flavour eq "macosx");
522 }
523 $line = "";
524 return $self;
525 }
526
527 # non-gas case or nasm/masm
528 SWITCH: for ($dir) {
529 /\.text/ && do { my $v=undef;
530 if ($nasm) {
531 $v="section .text code align=64\n";
532 } else {
533 $v="$current_segment\tENDS\n" if ($current_segment);
534 $current_segment = ".text\$";
535 $v.="$current_segment\tSEGMENT ";
536 $v.=$masm>=$masmref ? "ALIGN(64)" : "PAGE";
537 $v.=" 'CODE'";
538 }
539 $self->{value} = $v;
540 last;
541 };
542 /\.data/ && do { my $v=undef;
543 if ($nasm) {
544 $v="section .data data align=8\n";
545 } else {
546 $v="$current_segment\tENDS\n" if ($current_segment);
547 $current_segment = "_DATA";
548 $v.="$current_segment\tSEGMENT";
549 }
550 $self->{value} = $v;
551 last;
552 };
553 /\.section/ && do { my $v=undef;
554 $line =~ s/([^,]*).*/$1/;
555 $line = ".CRT\$XCU" if ($line eq ".init");
556 $line = ".rdata" if ($line eq ".rodata");
557 if ($nasm) {
558 $v="section $line";
559 if ($line=~/\.([prx])data/) {
560 $v.=" rdata align=";
561 $v.=$1 eq "p"? 4 : 8;
562 } elsif ($line=~/\.CRT\$/i) {
563 $v.=" rdata align=8";
564 }
565 } else {
566 $v="$current_segment\tENDS\n" if ($current_segment);
567 $v.="$line\tSEGMENT";
568 if ($line=~/\.([prx])data/) {
569 $v.=" READONLY";
570 if ($masm>=$masmref) {
571 if ($1 eq "r") {
572 $v.=" ALIGN(64)";
573 } elsif ($1 eq "p") {
574 $v.=" ALIGN(4)";
575 } else {
576 $v.=" ALIGN(8)";
577 }
578 }
579 } elsif ($line=~/\.CRT\$/i) {
580 $v.=" READONLY ";
581 $v.=$masm>=$masmref ? "ALIGN(8)" : "DWORD";
582 }
583 }
584 $current_segment = $line;
585 $self->{value} = $v;
586 last;
587 };
588 /\.extern/ && do { $self->{value} = "EXTERN\t".$line;
589 $self->{value} .= ":NEAR" if ($masm);
590 last;
591 };
592 /\.globl|.global/
593 && do { $self->{value} = $masm?"PUBLIC":"global";
594 $self->{value} .= "\t".$line;
595 last;
596 };
597 /\.size/ && do { if (defined($current_function)) {
598 undef $self->{value};
599 if ($current_function->{abi} eq "svr4") {
600 $self->{value}="${decor}SEH_end_$current_function->{name}:";
601 $self->{value}.=":\n" if($masm);
602 }
603 $self->{value}.="$current_function->{name}\tENDP" if($masm && $current_function->{name});
604 undef $current_function;
605 }
606 last;
607 };
608 /\.align/ && do { $self->{value} = "ALIGN\t".$line; last; };
609 /\.(value|long|rva|quad)/
610 && do { my $sz = substr($1,0,1);
611 my @arr = split(/,\s*/,$line);
612 my $last = pop(@arr);
613 my $conv = sub { my $var=shift;
614 $var=~s/^(0b[0-1]+)/oct($1)/eig;
615 $var=~s/^0x([0-9a-f]+)/0$1h/ig if ($masm);
616 if ($sz eq "D" && ($current_segment=~/.[px]data/ || $dir eq ".rva"))
617 { $var=~s/([_a-z\$\@][_a-z0-9\$\@]*)/$nasm?"$1 wrt ..imagebase":"imagerel $1"/egi; }
618 $var;
619 };
620
621 $sz =~ tr/bvlrq/BWDDQ/;
622 $self->{value} = "\tD$sz\t";
623 for (@arr) { $self->{value} .= &$conv($_).","; }
624 $self->{value} .= &$conv($last);
625 last;
626 };
627 /\.byte/ && do { my @str=split(/,\s*/,$line);
628 map(s/(0b[0-1]+)/oct($1)/eig,@str);
629 map(s/0x([0-9a-f]+)/0$1h/ig,@str) if ($masm);
630 while ($#str>15) {
631 $self->{value}.="DB\t"
632 .join(",",@str[0..15])."\n";
633 foreach (0..15) { shift @str; }
634 }
635 $self->{value}.="DB\t"
636 .join(",",@str) if (@str);
637 last;
638 };
639 /\.comm/ && do { my @str=split(/,\s*/,$line);
640 my $v=undef;
641 if ($nasm) {
642 $v.="common $prefix@str[0] @str[1]";
643 } else {
644 $v="$current_segment\tENDS\n" if ($current_segment);
645 $current_segment = "_DATA";
646 $v.="$current_segment\tSEGMENT\n";
647 $v.="COMM @str[0]:DWORD:".@str[1]/4;
648 }
649 $self->{value} = $v;
650 last;
651 };
652 }
653 $line = "";
654 }
655
656 $ret;
657 }
658 sub out {
659 my $self = shift;
660 $self->{value};
661 }
662}
663
664sub rex {
665 local *opcode=shift;
666 my ($dst,$src,$rex)=@_;
667
668 $rex|=0x04 if($dst>=8);
669 $rex|=0x01 if($src>=8);
670 push @opcode,($rex|0x40) if ($rex);
671}
672
673# older gas and ml64 don't handle SSE>2 instructions
674my %regrm = ( "%eax"=>0, "%ecx"=>1, "%edx"=>2, "%ebx"=>3,
675 "%esp"=>4, "%ebp"=>5, "%esi"=>6, "%edi"=>7 );
676
677if ($flavour ne "openbsd") {
678
679$movq = sub { # elderly gas can't handle inter-register movq
680 my $arg = shift;
681 my @opcode=(0x66);
682 if ($arg =~ /%xmm([0-9]+),\s*%r(\w+)/) {
683 my ($src,$dst)=($1,$2);
684 if ($dst !~ /[0-9]+/) { $dst = $regrm{"%e$dst"}; }
685 rex(\@opcode,$src,$dst,0x8);
686 push @opcode,0x0f,0x7e;
687 push @opcode,0xc0|(($src&7)<<3)|($dst&7); # ModR/M
688 @opcode;
689 } elsif ($arg =~ /%r(\w+),\s*%xmm([0-9]+)/) {
690 my ($src,$dst)=($2,$1);
691 if ($dst !~ /[0-9]+/) { $dst = $regrm{"%e$dst"}; }
692 rex(\@opcode,$src,$dst,0x8);
693 push @opcode,0x0f,0x6e;
694 push @opcode,0xc0|(($src&7)<<3)|($dst&7); # ModR/M
695 @opcode;
696 } else {
697 ();
698 }
699};
700
701}
702
703my $pextrd = sub {
704 if (shift =~ /\$([0-9]+),\s*%xmm([0-9]+),\s*(%\w+)/) {
705 my @opcode=(0x66);
706 $imm=$1;
707 $src=$2;
708 $dst=$3;
709 if ($dst =~ /%r([0-9]+)d/) { $dst = $1; }
710 elsif ($dst =~ /%e/) { $dst = $regrm{$dst}; }
711 rex(\@opcode,$src,$dst);
712 push @opcode,0x0f,0x3a,0x16;
713 push @opcode,0xc0|(($src&7)<<3)|($dst&7); # ModR/M
714 push @opcode,$imm;
715 @opcode;
716 } else {
717 ();
718 }
719};
720
721my $pinsrd = sub {
722 if (shift =~ /\$([0-9]+),\s*(%\w+),\s*%xmm([0-9]+)/) {
723 my @opcode=(0x66);
724 $imm=$1;
725 $src=$2;
726 $dst=$3;
727 if ($src =~ /%r([0-9]+)/) { $src = $1; }
728 elsif ($src =~ /%e/) { $src = $regrm{$src}; }
729 rex(\@opcode,$dst,$src);
730 push @opcode,0x0f,0x3a,0x22;
731 push @opcode,0xc0|(($dst&7)<<3)|($src&7); # ModR/M
732 push @opcode,$imm;
733 @opcode;
734 } else {
735 ();
736 }
737};
738
739if ($flavour ne "openbsd") {
740
741$pshufb = sub {
742 if (shift =~ /%xmm([0-9]+),\s*%xmm([0-9]+)/) {
743 my @opcode=(0x66);
744 rex(\@opcode,$2,$1);
745 push @opcode,0x0f,0x38,0x00;
746 push @opcode,0xc0|($1&7)|(($2&7)<<3); # ModR/M
747 @opcode;
748 } else {
749 ();
750 }
751};
752
753$palignr = sub {
754 if (shift =~ /\$([0-9]+),\s*%xmm([0-9]+),\s*%xmm([0-9]+)/) {
755 my @opcode=(0x66);
756 rex(\@opcode,$3,$2);
757 push @opcode,0x0f,0x3a,0x0f;
758 push @opcode,0xc0|($2&7)|(($3&7)<<3); # ModR/M
759 push @opcode,$1;
760 @opcode;
761 } else {
762 ();
763 }
764};
765
766$pclmulqdq = sub {
767 if (shift =~ /\$([x0-9a-f]+),\s*%xmm([0-9]+),\s*%xmm([0-9]+)/) {
768 my @opcode=(0x66);
769 rex(\@opcode,$3,$2);
770 push @opcode,0x0f,0x3a,0x44;
771 push @opcode,0xc0|($2&7)|(($3&7)<<3); # ModR/M
772 my $c=$1;
773 push @opcode,$c=~/^0/?oct($c):$c;
774 @opcode;
775 } else {
776 ();
777 }
778};
779
780}
781
782if ($nasm) {
783 print <<___;
784default rel
785%define XMMWORD
786___
787} elsif ($masm) {
788 print <<___;
789OPTION DOTNAME
790___
791}
792
793if ($nasm) {
794 print <<___;
795\%define _CET_ENDBR
796___
797} else {
798 print <<___;
799#if defined(__CET__)
800#include <cet.h>
801#else
802#define _CET_ENDBR
803#endif
804
805___
806}
807
808print "#include \"x86_arch.h\"\n";
809
810while($line=<>) {
811
812 chomp($line);
813
814 $line =~ s|[#!].*$||; # get rid of asm-style comments...
815 $line =~ s|/\*.*\*/||; # ... and C-style comments...
816 $line =~ s|^\s+||; # ... and skip white spaces in beginning
817
818 undef $label;
819 undef $opcode;
820 undef @args;
821
822 if ($label=label->re(\$line)) { print $label->out(); }
823
824 if (directive->re(\$line)) {
825 printf "%s",directive->out();
826 } elsif ($opcode=opcode->re(\$line)) {
827 my $asm = eval("\$".$opcode->mnemonic());
828 undef @bytes;
829
830 if ((ref($asm) eq 'CODE') && scalar(@bytes=&$asm($line))) {
831 print $gas?".byte\t":"DB\t",join(',',@bytes),"\n";
832 next;
833 }
834
835 ARGUMENT: while (1) {
836 my $arg;
837
838 if ($arg=register->re(\$line)) { opcode->size($arg->size()); }
839 elsif ($arg=const->re(\$line)) { }
840 elsif ($arg=ea->re(\$line)) { }
841 elsif ($arg=expr->re(\$line)) { }
842 else { last ARGUMENT; }
843
844 push @args,$arg;
845
846 last ARGUMENT if ($line !~ /^,/);
847
848 $line =~ s/^,\s*//;
849 } # ARGUMENT:
850
851 if ($#args>=0) {
852 my $insn;
853 my $sz=opcode->size();
854
855 if ($gas) {
856 $insn = $opcode->out($#args>=1?$args[$#args]->size():$sz);
857 @args = map($_->out($sz),@args);
858 printf "\t%s\t%s",$insn,join(",",@args);
859 } else {
860 $insn = $opcode->out();
861 foreach (@args) {
862 my $arg = $_->out();
863 # $insn.=$sz compensates for movq, pinsrw, ...
864 if ($arg =~ /^xmm[0-9]+$/) { $insn.=$sz; $sz="x" if(!$sz); last; }
865 if ($arg =~ /^mm[0-9]+$/) { $insn.=$sz; $sz="q" if(!$sz); last; }
866 }
867 @args = reverse(@args);
868 undef $sz if ($nasm && $opcode->mnemonic() eq "lea");
869 printf "\t%s\t%s",$insn,join(",",map($_->out($sz),@args));
870 }
871 } else {
872 printf "\t%s",$opcode->out();
873 }
874 }
875
876 print $line,"\n";
877}
878
879print "\n$current_segment\tENDS\n" if ($current_segment && $masm);
880print "END\n" if ($masm);
881
882close STDOUT;
883
884 #################################################
885# Cross-reference x86_64 ABI "card"
886#
887# Unix Win64
888# %rax * *
889# %rbx - -
890# %rcx #4 #1
891# %rdx #3 #2
892# %rsi #2 -
893# %rdi #1 -
894# %rbp - -
895# %rsp - -
896# %r8 #5 #3
897# %r9 #6 #4
898# %r10 * *
899# %r11 * *
900# %r12 - -
901# %r13 - -
902# %r14 - -
903# %r15 - -
904#
905# (*) volatile register
906# (-) preserved by callee
907# (#) Nth argument, volatile
908#
909# In Unix terms top of stack is argument transfer area for arguments
910# which could not be accommodated in registers. Or in other words 7th
911# [integer] argument resides at 8(%rsp) upon function entry point.
912# 128 bytes above %rsp constitute a "red zone" which is not touched
913# by signal handlers and can be used as temporal storage without
914# allocating a frame.
915#
916# In Win64 terms N*8 bytes on top of stack is argument transfer area,
917# which belongs to/can be overwritten by callee. N is the number of
918# arguments passed to callee, *but* not less than 4! This means that
919# upon function entry point 5th argument resides at 40(%rsp), as well
920# as that 32 bytes from 8(%rsp) can always be used as temporal
921# storage [without allocating a frame]. One can actually argue that
922# one can assume a "red zone" above stack pointer under Win64 as well.
923# Point is that at apparently no occasion Windows kernel would alter
924# the area above user stack pointer in true asynchronous manner...
925#
926# All the above means that if assembler programmer adheres to Unix
927# register and stack layout, but disregards the "red zone" existence,
928# it's possible to use following prologue and epilogue to "gear" from
929# Unix to Win64 ABI in leaf functions with not more than 6 arguments.
930#
931# omnipotent_function:
932# ifdef WIN64
933# movq %rdi,8(%rsp)
934# movq %rsi,16(%rsp)
935# movq %rcx,%rdi ; if 1st argument is actually present
936# movq %rdx,%rsi ; if 2nd argument is actually ...
937# movq %r8,%rdx ; if 3rd argument is ...
938# movq %r9,%rcx ; if 4th argument ...
939# movq 40(%rsp),%r8 ; if 5th ...
940# movq 48(%rsp),%r9 ; if 6th ...
941# endif
942# ...
943# ifdef WIN64
944# movq 8(%rsp),%rdi
945# movq 16(%rsp),%rsi
946# endif
947# ret
948#
949 #################################################
950# Win64 SEH, Structured Exception Handling.
951#
952# Unlike on Unix systems(*) lack of Win64 stack unwinding information
953# has undesired side-effect at run-time: if an exception is raised in
954# assembler subroutine such as those in question (basically we're
955# referring to segmentation violations caused by malformed input
956# parameters), the application is briskly terminated without invoking
957# any exception handlers, most notably without generating memory dump
958# or any user notification whatsoever. This poses a problem. It's
959# possible to address it by registering custom language-specific
960# handler that would restore processor context to the state at
961# subroutine entry point and return "exception is not handled, keep
962# unwinding" code. Writing such handler can be a challenge... But it's
963# doable, though requires certain coding convention. Consider following
964# snippet:
965#
966# .type function,@function
967# function:
968# movq %rsp,%rax # copy rsp to volatile register
969# pushq %r15 # save non-volatile registers
970# pushq %rbx
971# pushq %rbp
972# movq %rsp,%r11
973# subq %rdi,%r11 # prepare [variable] stack frame
974# andq $-64,%r11
975# movq %rax,0(%r11) # check for exceptions
976# movq %r11,%rsp # allocate [variable] stack frame
977# movq %rax,0(%rsp) # save original rsp value
978# magic_point:
979# ...
980# movq 0(%rsp),%rcx # pull original rsp value
981# movq -24(%rcx),%rbp # restore non-volatile registers
982# movq -16(%rcx),%rbx
983# movq -8(%rcx),%r15
984# movq %rcx,%rsp # restore original rsp
985# ret
986# .size function,.-function
987#
988# The key is that up to magic_point copy of original rsp value remains
989# in chosen volatile register and no non-volatile register, except for
990# rsp, is modified. While past magic_point rsp remains constant till
991# the very end of the function. In this case custom language-specific
992# exception handler would look like this:
993#
994# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
995# CONTEXT *context,DISPATCHER_CONTEXT *disp)
996# { ULONG64 *rsp = (ULONG64 *)context->Rax;
997# if (context->Rip >= magic_point)
998# { rsp = ((ULONG64 **)context->Rsp)[0];
999# context->Rbp = rsp[-3];
1000# context->Rbx = rsp[-2];
1001# context->R15 = rsp[-1];
1002# }
1003# context->Rsp = (ULONG64)rsp;
1004# context->Rdi = rsp[1];
1005# context->Rsi = rsp[2];
1006#
1007# memcpy (disp->ContextRecord,context,sizeof(CONTEXT));
1008# RtlVirtualUnwind(UNW_FLAG_NHANDLER,disp->ImageBase,
1009# dips->ControlPc,disp->FunctionEntry,disp->ContextRecord,
1010# &disp->HandlerData,&disp->EstablisherFrame,NULL);
1011# return ExceptionContinueSearch;
1012# }
1013#
1014# It's appropriate to implement this handler in assembler, directly in
1015# function's module. In order to do that one has to know members'
1016# offsets in CONTEXT and DISPATCHER_CONTEXT structures and some constant
1017# values. Here they are:
1018#
1019# CONTEXT.Rax 120
1020# CONTEXT.Rcx 128
1021# CONTEXT.Rdx 136
1022# CONTEXT.Rbx 144
1023# CONTEXT.Rsp 152
1024# CONTEXT.Rbp 160
1025# CONTEXT.Rsi 168
1026# CONTEXT.Rdi 176
1027# CONTEXT.R8 184
1028# CONTEXT.R9 192
1029# CONTEXT.R10 200
1030# CONTEXT.R11 208
1031# CONTEXT.R12 216
1032# CONTEXT.R13 224
1033# CONTEXT.R14 232
1034# CONTEXT.R15 240
1035# CONTEXT.Rip 248
1036# CONTEXT.Xmm6 512
1037# sizeof(CONTEXT) 1232
1038# DISPATCHER_CONTEXT.ControlPc 0
1039# DISPATCHER_CONTEXT.ImageBase 8
1040# DISPATCHER_CONTEXT.FunctionEntry 16
1041# DISPATCHER_CONTEXT.EstablisherFrame 24
1042# DISPATCHER_CONTEXT.TargetIp 32
1043# DISPATCHER_CONTEXT.ContextRecord 40
1044# DISPATCHER_CONTEXT.LanguageHandler 48
1045# DISPATCHER_CONTEXT.HandlerData 56
1046# UNW_FLAG_NHANDLER 0
1047# ExceptionContinueSearch 1
1048#
1049# In order to tie the handler to the function one has to compose
1050# couple of structures: one for .xdata segment and one for .pdata.
1051#
1052# UNWIND_INFO structure for .xdata segment would be
1053#
1054# function_unwind_info:
1055# .byte 9,0,0,0
1056# .rva handler
1057#
1058# This structure designates exception handler for a function with
1059# zero-length prologue, no stack frame or frame register.
1060#
1061# To facilitate composing of .pdata structures, auto-generated "gear"
1062# prologue copies rsp value to rax and denotes next instruction with
1063# .LSEH_begin_{function_name} label. This essentially defines the SEH
1064# styling rule mentioned in the beginning. Position of this label is
1065# chosen in such manner that possible exceptions raised in the "gear"
1066# prologue would be accounted to caller and unwound from latter's frame.
1067# End of function is marked with respective .LSEH_end_{function_name}
1068# label. To summarize, .pdata segment would contain
1069#
1070# .rva .LSEH_begin_function
1071# .rva .LSEH_end_function
1072# .rva function_unwind_info
1073#
1074# Reference to functon_unwind_info from .xdata segment is the anchor.
1075# In case you wonder why references are 32-bit .rvas and not 64-bit
1076# .quads. References put into these two segments are required to be
1077# *relative* to the base address of the current binary module, a.k.a.
1078# image base. No Win64 module, be it .exe or .dll, can be larger than
1079# 2GB and thus such relative references can be and are accommodated in
1080# 32 bits.
1081#
1082# Having reviewed the example function code, one can argue that "movq
1083# %rsp,%rax" above is redundant. It is not! Keep in mind that on Unix
1084# rax would contain an undefined value. If this "offends" you, use
1085# another register and refrain from modifying rax till magic_point is
1086# reached, i.e. as if it was a non-volatile register. If more registers
1087# are required prior [variable] frame setup is completed, note that
1088# nobody says that you can have only one "magic point." You can
1089# "liberate" non-volatile registers by denoting last stack off-load
1090# instruction and reflecting it in finer grade unwind logic in handler.
1091# After all, isn't it why it's called *language-specific* handler...
1092#
1093# Attentive reader can notice that exceptions would be mishandled in
1094# auto-generated "gear" epilogue. Well, exception effectively can't
1095# occur there, because if memory area used by it was subject to
1096# segmentation violation, then it would be raised upon call to the
1097# function (and as already mentioned be accounted to caller, which is
1098# not a problem). If you're still not comfortable, then define tail
1099# "magic point" just prior ret instruction and have handler treat it...
1100#
1101# (*) Note that we're talking about run-time, not debug-time. Lack of
1102# unwind information makes debugging hard on both Windows and
1103# Unix. "Unlike" referes to the fact that on Unix signal handler
1104# will always be invoked, core dumped and appropriate exit code
1105# 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 7e72707684..0000000000
--- a/src/lib/libcrypto/perlasm/x86asm.pl
+++ /dev/null
@@ -1,257 +0,0 @@
1#!/usr/bin/env perl
2
3# require 'x86asm.pl';
4# &asm_init(<flavor>,"aes-586.pl"[,$x86only]);
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# SSE>2 instructions
91my %regrm = ( "eax"=>0, "ecx"=>1, "edx"=>2, "ebx"=>3,
92 "esp"=>4, "ebp"=>5, "esi"=>6, "edi"=>7 );
93sub ::pextrd
94{ my($dst,$src,$imm)=@_;
95 if ("$dst:$src" =~ /(e[a-dsd][ixp]):xmm([0-7])/)
96 { &::data_byte(0x66,0x0f,0x3a,0x16,0xc0|($2<<3)|$regrm{$1},$imm); }
97 else
98 { &::generic("pextrd",@_); }
99}
100
101sub ::pinsrd
102{ my($dst,$src,$imm)=@_;
103 if ("$dst:$src" =~ /xmm([0-7]):(e[a-dsd][ixp])/)
104 { &::data_byte(0x66,0x0f,0x3a,0x22,0xc0|($1<<3)|$regrm{$2},$imm); }
105 else
106 { &::generic("pinsrd",@_); }
107}
108
109sub ::pshufb
110{ my($dst,$src)=@_;
111 if ("$dst:$src" =~ /xmm([0-7]):xmm([0-7])/)
112 { &data_byte(0x66,0x0f,0x38,0x00,0xc0|($1<<3)|$2); }
113 else
114 { &::generic("pshufb",@_); }
115}
116
117sub ::palignr
118{ my($dst,$src,$imm)=@_;
119 if ("$dst:$src" =~ /xmm([0-7]):xmm([0-7])/)
120 { &::data_byte(0x66,0x0f,0x3a,0x0f,0xc0|($1<<3)|$2,$imm); }
121 else
122 { &::generic("palignr",@_); }
123}
124
125sub ::pclmulqdq
126{ my($dst,$src,$imm)=@_;
127 if ("$dst:$src" =~ /xmm([0-7]):xmm([0-7])/)
128 { &::data_byte(0x66,0x0f,0x3a,0x44,0xc0|($1<<3)|$2,$imm); }
129 else
130 { &::generic("pclmulqdq",@_); }
131}
132
133# label management
134$lbdecor="L"; # local label decoration, set by package
135$label="000";
136
137sub ::islabel # see is argument is a known label
138{ my $i;
139 foreach $i (values %label) { return $i if ($i eq $_[0]); }
140 $label{$_[0]}; # can be undef
141}
142
143sub ::label # instantiate a function-scope label
144{ if (!defined($label{$_[0]}))
145 { $label{$_[0]}="${lbdecor}${label}${_[0]}"; $label++; }
146 $label{$_[0]};
147}
148
149sub ::LABEL # instantiate a file-scope label
150{ $label{$_[0]}=$_[1] if (!defined($label{$_[0]}));
151 $label{$_[0]};
152}
153
154sub ::static_label { &::LABEL($_[0],$lbdecor.$_[0]); }
155
156sub ::set_label_B { push(@out,"@_:\n"); }
157sub ::set_label
158{ my $label=&::label($_[0]);
159 &::align($_[1]) if ($_[1]>1);
160 &::set_label_B($label);
161 $label;
162}
163
164sub ::wipe_labels # wipes function-scope labels
165{ foreach $i (keys %label)
166 { delete $label{$i} if ($label{$i} =~ /^\Q${lbdecor}\E[0-9]{3}/); }
167}
168
169# subroutine management
170sub ::function_begin
171{ &function_begin_B(@_);
172 $stack=4;
173 &push("ebp");
174 &push("ebx");
175 &push("esi");
176 &push("edi");
177}
178
179sub ::function_end
180{ &pop("edi");
181 &pop("esi");
182 &pop("ebx");
183 &pop("ebp");
184 &ret();
185 &function_end_B(@_);
186 $stack=0;
187 &wipe_labels();
188}
189
190sub ::function_end_A
191{ &pop("edi");
192 &pop("esi");
193 &pop("ebx");
194 &pop("ebp");
195 &ret();
196 $stack+=16; # readjust esp as if we didn't pop anything
197}
198
199sub ::asciz
200{ my @str=unpack("C*",shift);
201 push @str,0;
202 while ($#str>15) {
203 &data_byte(@str[0..15]);
204 foreach (0..15) { shift @str; }
205 }
206 &data_byte(@str) if (@str);
207}
208
209sub ::asm_finish
210{ &file_end();
211 print @out;
212}
213
214sub ::asm_init
215{ my ($type,$fn,$cpu)=@_;
216
217 $filename=$fn;
218 $i386=$cpu;
219
220 $elf=$cpp=$coff=$aout=$macosx=$win32=$openbsd=$android=0;
221 if (($type eq "elf"))
222 { $elf=1; require "x86gas.pl"; }
223 elsif (($type eq "a\.out"))
224 { $aout=1; require "x86gas.pl"; }
225 elsif (($type eq "coff" or $type eq "gaswin"))
226 { $coff=1; require "x86gas.pl"; }
227 elsif (($type eq "macosx"))
228 { $aout=1; $macosx=1; require "x86gas.pl"; }
229 elsif (($type eq "openbsd-elf"))
230 { $openbsd=$elf=1; require "x86gas.pl"; }
231 elsif (($type eq "openbsd-a.out"))
232 { $openbsd=1; require "x86gas.pl"; }
233 elsif (($type eq "android"))
234 { $elf=1; $android=1; require "x86gas.pl"; }
235 else
236 { print STDERR <<"EOF";
237Pick one target type from
238 elf - Linux, FreeBSD, Solaris x86, etc.
239 a.out - DJGPP, elder OpenBSD, etc.
240 coff - GAS/COFF such as Win32 targets
241 openbsd-elf - OpenBSD elf
242 openbsd-a.out - OpenBSD a.out
243 macosx - Mac OS X
244EOF
245 exit(1);
246 }
247
248 $pic=0;
249 for (@ARGV) { $pic=1 if (/\-[fK]PIC/i); }
250
251 ::emitraw("#include \"x86_arch.h\"\n");
252 ::emitraw("#include <machine/asm.h>\n") if $openbsd;
253 $filename =~ s/\.pl$//;
254 &file($filename);
255}
256
2571;
diff --git a/src/lib/libcrypto/perlasm/x86gas.pl b/src/lib/libcrypto/perlasm/x86gas.pl
deleted file mode 100644
index b84e28be97..0000000000
--- a/src/lib/libcrypto/perlasm/x86gas.pl
+++ /dev/null
@@ -1,315 +0,0 @@
1#!/usr/bin/env perl
2
3package x86gas;
4
5*out=\@::out;
6
7$::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;
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-05-06 22:00:46 +0000