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1 #!/usr/local/bin/perl | |
2 | |
3 package x86unix; # GAS actually... | |
4 | |
5 $label="L000"; | |
6 $const=""; | |
7 $constl=0; | |
8 | |
9 $align=($main'aout)?"4":"16"; | |
10 $under=($main'aout or $main'coff)?"_":""; | |
11 $dot=($main'aout)?"":"."; | |
12 $com_start="#" if ($main'aout or $main'coff); | |
13 | |
14 sub main'asm_init_output { @out=(); } | |
15 sub main'asm_get_output { return(@out); } | |
16 sub main'get_labels { return(@labels); } | |
17 sub main'external_label { push(@labels,@_); } | |
18 | |
19 if ($main'cpp) | |
20 { | |
21 $align="ALIGN"; | |
22 $under=""; | |
23 $com_start='/*'; | |
24 $com_end='*/'; | |
25 } | |
26 | |
27 %lb=( 'eax', '%al', | |
28 'ebx', '%bl', | |
29 'ecx', '%cl', | |
30 'edx', '%dl', | |
31 'ax', '%al', | |
32 'bx', '%bl', | |
33 'cx', '%cl', | |
34 'dx', '%dl', | |
35 ); | |
36 | |
37 %hb=( 'eax', '%ah', | |
38 'ebx', '%bh', | |
39 'ecx', '%ch', | |
40 'edx', '%dh', | |
41 'ax', '%ah', | |
42 'bx', '%bh', | |
43 'cx', '%ch', | |
44 'dx', '%dh', | |
45 ); | |
46 | |
47 %regs=( 'eax', '%eax', | |
48 'ebx', '%ebx', | |
49 'ecx', '%ecx', | |
50 'edx', '%edx', | |
51 'esi', '%esi', | |
52 'edi', '%edi', | |
53 'ebp', '%ebp', | |
54 'esp', '%esp', | |
55 | |
56 'mm0', '%mm0', | |
57 'mm1', '%mm1', | |
58 'mm2', '%mm2', | |
59 'mm3', '%mm3', | |
60 'mm4', '%mm4', | |
61 'mm5', '%mm5', | |
62 'mm6', '%mm6', | |
63 'mm7', '%mm7', | |
64 | |
65 'xmm0', '%xmm0', | |
66 'xmm1', '%xmm1', | |
67 'xmm2', '%xmm2', | |
68 'xmm3', '%xmm3', | |
69 'xmm4', '%xmm4', | |
70 'xmm5', '%xmm5', | |
71 'xmm6', '%xmm6', | |
72 'xmm7', '%xmm7', | |
73 ); | |
74 | |
75 %reg_val=( | |
76 'eax', 0x00, | |
77 'ebx', 0x03, | |
78 'ecx', 0x01, | |
79 'edx', 0x02, | |
80 'esi', 0x06, | |
81 'edi', 0x07, | |
82 'ebp', 0x05, | |
83 'esp', 0x04, | |
84 ); | |
85 | |
86 sub main'LB | |
87 { | |
88 (defined($lb{$_[0]})) || die "$_[0] does not have a 'low byte'\n"; | |
89 return($lb{$_[0]}); | |
90 } | |
91 | |
92 sub main'HB | |
93 { | |
94 (defined($hb{$_[0]})) || die "$_[0] does not have a 'high byte'\n"; | |
95 return($hb{$_[0]}); | |
96 } | |
97 | |
98 sub main'DWP | |
99 { | |
100 local($addr,$reg1,$reg2,$idx)=@_; | |
101 | |
102 $ret=""; | |
103 $addr =~ s/(^|[+ \t])([A-Za-z_]+[A-Za-z0-9_]+)($|[+ \t])/$1$under$2$3/; | |
104 $reg1="$regs{$reg1}" if defined($regs{$reg1}); | |
105 $reg2="$regs{$reg2}" if defined($regs{$reg2}); | |
106 $ret.=$addr if ($addr ne "") && ($addr ne 0); | |
107 if ($reg2 ne "") | |
108 { | |
109 if($idx ne "" && $idx != 0) | |
110 { $ret.="($reg1,$reg2,$idx)"; } | |
111 else | |
112 { $ret.="($reg1,$reg2)"; } | |
113 } | |
114 elsif ($reg1 ne "") | |
115 { $ret.="($reg1)" } | |
116 return($ret); | |
117 } | |
118 | |
119 sub main'QWP | |
120 { | |
121 return(&main'DWP(@_)); | |
122 } | |
123 | |
124 sub main'BP | |
125 { | |
126 return(&main'DWP(@_)); | |
127 } | |
128 | |
129 sub main'BC | |
130 { | |
131 return @_; | |
132 } | |
133 | |
134 sub main'DWC | |
135 { | |
136 return @_; | |
137 } | |
138 | |
139 #sub main'BP | |
140 # { | |
141 # local($addr,$reg1,$reg2,$idx)=@_; | |
142 # | |
143 # $ret=""; | |
144 # | |
145 # $addr =~ s/(^|[+ \t])([A-Za-z_]+)($|[+ \t])/$1$under$2$3/; | |
146 # $reg1="$regs{$reg1}" if defined($regs{$reg1}); | |
147 # $reg2="$regs{$reg2}" if defined($regs{$reg2}); | |
148 # $ret.=$addr if ($addr ne "") && ($addr ne 0); | |
149 # if ($reg2 ne "") | |
150 # { $ret.="($reg1,$reg2,$idx)"; } | |
151 # else | |
152 # { $ret.="($reg1)" } | |
153 # return($ret); | |
154 # } | |
155 | |
156 sub main'mov { &out2("movl",@_); } | |
157 sub main'movb { &out2("movb",@_); } | |
158 sub main'and { &out2("andl",@_); } | |
159 sub main'or { &out2("orl",@_); } | |
160 sub main'shl { &out2("sall",@_); } | |
161 sub main'shr { &out2("shrl",@_); } | |
162 sub main'xor { &out2("xorl",@_); } | |
163 sub main'xorb { &out2("xorb",@_); } | |
164 sub main'add { &out2($_[0]=~/%[a-d][lh]/?"addb":"addl",@_); } | |
165 sub main'adc { &out2("adcl",@_); } | |
166 sub main'sub { &out2("subl",@_); } | |
167 sub main'sbb { &out2("sbbl",@_); } | |
168 sub main'rotl { &out2("roll",@_); } | |
169 sub main'rotr { &out2("rorl",@_); } | |
170 sub main'exch { &out2($_[0]=~/%[a-d][lh]/?"xchgb":"xchgl",@_); } | |
171 sub main'cmp { &out2("cmpl",@_); } | |
172 sub main'lea { &out2("leal",@_); } | |
173 sub main'mul { &out1("mull",@_); } | |
174 sub main'imul { &out2("imull",@_); } | |
175 sub main'div { &out1("divl",@_); } | |
176 sub main'jmp { &out1("jmp",@_); } | |
177 sub main'jmp_ptr { &out1p("jmp",@_); } | |
178 sub main'je { &out1("je",@_); } | |
179 sub main'jle { &out1("jle",@_); } | |
180 sub main'jne { &out1("jne",@_); } | |
181 sub main'jnz { &out1("jnz",@_); } | |
182 sub main'jz { &out1("jz",@_); } | |
183 sub main'jge { &out1("jge",@_); } | |
184 sub main'jl { &out1("jl",@_); } | |
185 sub main'ja { &out1("ja",@_); } | |
186 sub main'jae { &out1("jae",@_); } | |
187 sub main'jb { &out1("jb",@_); } | |
188 sub main'jbe { &out1("jbe",@_); } | |
189 sub main'jc { &out1("jc",@_); } | |
190 sub main'jnc { &out1("jnc",@_); } | |
191 sub main'jno { &out1("jno",@_); } | |
192 sub main'dec { &out1("decl",@_); } | |
193 sub main'inc { &out1($_[0]=~/%[a-d][hl]/?"incb":"incl",@_); } | |
194 sub main'push { &out1("pushl",@_); $stack+=4; } | |
195 sub main'pop { &out1("popl",@_); $stack-=4; } | |
196 sub main'pushf { &out0("pushfl"); $stack+=4; } | |
197 sub main'popf { &out0("popfl"); $stack-=4; } | |
198 sub main'not { &out1("notl",@_); } | |
199 sub main'call { my $pre=$under; | |
200 foreach $i (%label) | |
201 { if ($label{$i} eq $_[0]) { $pre=''; last; } } | |
202 &out1("call",$pre.$_[0]); | |
203 } | |
204 sub main'call_ptr { &out1p("call",@_); } | |
205 sub main'ret { &out0("ret"); } | |
206 sub main'nop { &out0("nop"); } | |
207 sub main'test { &out2("testl",@_); } | |
208 sub main'bt { &out2("btl",@_); } | |
209 sub main'leave { &out0("leave"); } | |
210 sub main'cpuid { &out0(".byte\t0x0f,0xa2"); } | |
211 sub main'rdtsc { &out0(".byte\t0x0f,0x31"); } | |
212 sub main'halt { &out0("hlt"); } | |
213 sub main'movz { &out2("movzbl",@_); } | |
214 sub main'neg { &out1("negl",@_); } | |
215 sub main'cld { &out0("cld"); } | |
216 | |
217 # SSE2 | |
218 sub main'emms { &out0("emms"); } | |
219 sub main'movd { &out2("movd",@_); } | |
220 sub main'movdqu { &out2("movdqu",@_); } | |
221 sub main'movdqa { &out2("movdqa",@_); } | |
222 sub main'movdq2q{ &out2("movdq2q",@_); } | |
223 sub main'movq2dq{ &out2("movq2dq",@_); } | |
224 sub main'paddq { &out2("paddq",@_); } | |
225 sub main'pmuludq{ &out2("pmuludq",@_); } | |
226 sub main'psrlq { &out2("psrlq",@_); } | |
227 sub main'psllq { &out2("psllq",@_); } | |
228 sub main'pxor { &out2("pxor",@_); } | |
229 sub main'por { &out2("por",@_); } | |
230 sub main'pand { &out2("pand",@_); } | |
231 sub main'movq { | |
232 local($p1,$p2,$optimize)=@_; | |
233 if ($optimize && $p1=~/^mm[0-7]$/ && $p2=~/^mm[0-7]$/) | |
234 # movq between mmx registers can sink Intel CPUs | |
235 { push(@out,"\tpshufw\t\$0xe4,%$p2,%$p1\n"); } | |
236 else { &out2("movq",@_); } | |
237 } | |
238 | |
239 # The bswapl instruction is new for the 486. Emulate if i386. | |
240 sub main'bswap | |
241 { | |
242 if ($main'i386) | |
243 { | |
244 &main'comment("bswapl @_"); | |
245 &main'exch(main'HB(@_),main'LB(@_)); | |
246 &main'rotr(@_,16); | |
247 &main'exch(main'HB(@_),main'LB(@_)); | |
248 } | |
249 else | |
250 { | |
251 &out1("bswapl",@_); | |
252 } | |
253 } | |
254 | |
255 sub out2 | |
256 { | |
257 local($name,$p1,$p2)=@_; | |
258 local($l,$ll,$t); | |
259 local(%special)=( "roll",0xD1C0,"rorl",0xD1C8, | |
260 "rcll",0xD1D0,"rcrl",0xD1D8, | |
261 "shll",0xD1E0,"shrl",0xD1E8, | |
262 "sarl",0xD1F8); | |
263 | |
264 if ((defined($special{$name})) && defined($regs{$p1}) && ($p2 == 1)) | |
265 { | |
266 $op=$special{$name}|$reg_val{$p1}; | |
267 $tmp1=sprintf(".byte %d\n",($op>>8)&0xff); | |
268 $tmp2=sprintf(".byte %d\t",$op &0xff); | |
269 push(@out,$tmp1); | |
270 push(@out,$tmp2); | |
271 | |
272 $p2=&conv($p2); | |
273 $p1=&conv($p1); | |
274 &main'comment("$name $p2 $p1"); | |
275 return; | |
276 } | |
277 | |
278 push(@out,"\t$name\t"); | |
279 $t=&conv($p2).","; | |
280 $l=length($t); | |
281 push(@out,$t); | |
282 $ll=4-($l+9)/8; | |
283 $tmp1=sprintf("\t" x $ll); | |
284 push(@out,$tmp1); | |
285 push(@out,&conv($p1)."\n"); | |
286 } | |
287 | |
288 sub out1 | |
289 { | |
290 local($name,$p1)=@_; | |
291 local($l,$t); | |
292 local(%special)=("bswapl",0x0FC8); | |
293 | |
294 if ((defined($special{$name})) && defined($regs{$p1})) | |
295 { | |
296 $op=$special{$name}|$reg_val{$p1}; | |
297 $tmp1=sprintf(".byte %d\n",($op>>8)&0xff); | |
298 $tmp2=sprintf(".byte %d\t",$op &0xff); | |
299 push(@out,$tmp1); | |
300 push(@out,$tmp2); | |
301 | |
302 $p2=&conv($p2); | |
303 $p1=&conv($p1); | |
304 &main'comment("$name $p2 $p1"); | |
305 return; | |
306 } | |
307 | |
308 push(@out,"\t$name\t".&conv($p1)."\n"); | |
309 } | |
310 | |
311 sub out1p | |
312 { | |
313 local($name,$p1)=@_; | |
314 local($l,$t); | |
315 | |
316 push(@out,"\t$name\t*".&conv($p1)."\n"); | |
317 } | |
318 | |
319 sub out0 | |
320 { | |
321 push(@out,"\t$_[0]\n"); | |
322 } | |
323 | |
324 sub conv | |
325 { | |
326 local($p)=@_; | |
327 | |
328 # $p =~ s/0x([0-9A-Fa-f]+)/0$1h/; | |
329 | |
330 $p=$regs{$p} if (defined($regs{$p})); | |
331 | |
332 $p =~ s/^(-{0,1}[0-9A-Fa-f]+)$/\$$1/; | |
333 $p =~ s/^(0x[0-9A-Fa-f]+)$/\$$1/; | |
334 return $p; | |
335 } | |
336 | |
337 sub main'file | |
338 { | |
339 local($file)=@_; | |
340 | |
341 local($tmp)=<<"EOF"; | |
342 .file "$file.s" | |
343 EOF | |
344 push(@out,$tmp); | |
345 } | |
346 | |
347 sub main'function_begin | |
348 { | |
349 local($func)=@_; | |
350 | |
351 &main'external_label($func); | |
352 $func=$under.$func; | |
353 | |
354 local($tmp)=<<"EOF"; | |
355 .text | |
356 .globl $func | |
357 EOF | |
358 push(@out,$tmp); | |
359 if ($main'cpp) | |
360 { $tmp=push(@out,"TYPE($func,\@function)\n"); } | |
361 elsif ($main'coff) | |
362 { $tmp=push(@out,".def\t$func;\t.scl\t2;\t.type\t32;\t.endef\n")
; } | |
363 elsif ($main'aout and !$main'pic) | |
364 { } | |
365 else { $tmp=push(@out,".type\t$func,\@function\n"); } | |
366 push(@out,".align\t$align\n"); | |
367 push(@out,"$func:\n"); | |
368 $tmp=<<"EOF"; | |
369 pushl %ebp | |
370 pushl %ebx | |
371 pushl %esi | |
372 pushl %edi | |
373 | |
374 EOF | |
375 push(@out,$tmp); | |
376 $stack=20; | |
377 } | |
378 | |
379 sub main'function_begin_B | |
380 { | |
381 local($func,$extra)=@_; | |
382 | |
383 &main'external_label($func); | |
384 $func=$under.$func; | |
385 | |
386 local($tmp)=<<"EOF"; | |
387 .text | |
388 .globl $func | |
389 EOF | |
390 push(@out,$tmp); | |
391 if ($main'cpp) | |
392 { push(@out,"TYPE($func,\@function)\n"); } | |
393 elsif ($main'coff) | |
394 { $tmp=push(@out,".def\t$func;\t.scl\t2;\t.type\t32;\t.endef\n")
; } | |
395 elsif ($main'aout and !$main'pic) | |
396 { } | |
397 else { push(@out,".type $func,\@function\n"); } | |
398 push(@out,".align\t$align\n"); | |
399 push(@out,"$func:\n"); | |
400 $stack=4; | |
401 } | |
402 | |
403 sub main'function_end | |
404 { | |
405 local($func)=@_; | |
406 | |
407 $func=$under.$func; | |
408 | |
409 local($tmp)=<<"EOF"; | |
410 popl %edi | |
411 popl %esi | |
412 popl %ebx | |
413 popl %ebp | |
414 ret | |
415 ${dot}L_${func}_end: | |
416 EOF | |
417 push(@out,$tmp); | |
418 | |
419 if ($main'cpp) | |
420 { push(@out,"SIZE($func,${dot}L_${func}_end-$func)\n"); } | |
421 elsif ($main'coff or $main'aout) | |
422 { } | |
423 else { push(@out,".size\t$func,${dot}L_${func}_end-$func\n"); } | |
424 push(@out,".ident \"$func\"\n"); | |
425 $stack=0; | |
426 %label=(); | |
427 } | |
428 | |
429 sub main'function_end_A | |
430 { | |
431 local($func)=@_; | |
432 | |
433 local($tmp)=<<"EOF"; | |
434 popl %edi | |
435 popl %esi | |
436 popl %ebx | |
437 popl %ebp | |
438 ret | |
439 EOF | |
440 push(@out,$tmp); | |
441 } | |
442 | |
443 sub main'function_end_B | |
444 { | |
445 local($func)=@_; | |
446 | |
447 $func=$under.$func; | |
448 | |
449 push(@out,"${dot}L_${func}_end:\n"); | |
450 if ($main'cpp) | |
451 { push(@out,"SIZE($func,${dot}L_${func}_end-$func)\n"); } | |
452 elsif ($main'coff or $main'aout) | |
453 { } | |
454 else { push(@out,".size\t$func,${dot}L_${func}_end-$func\n"); } | |
455 push(@out,".ident \"$func\"\n"); | |
456 $stack=0; | |
457 %label=(); | |
458 } | |
459 | |
460 sub main'wparam | |
461 { | |
462 local($num)=@_; | |
463 | |
464 return(&main'DWP($stack+$num*4,"esp","",0)); | |
465 } | |
466 | |
467 sub main'stack_push | |
468 { | |
469 local($num)=@_; | |
470 $stack+=$num*4; | |
471 &main'sub("esp",$num*4); | |
472 } | |
473 | |
474 sub main'stack_pop | |
475 { | |
476 local($num)=@_; | |
477 $stack-=$num*4; | |
478 &main'add("esp",$num*4); | |
479 } | |
480 | |
481 sub main'swtmp | |
482 { | |
483 return(&main'DWP($_[0]*4,"esp","",0)); | |
484 } | |
485 | |
486 # Should use swtmp, which is above esp. Linix can trash the stack above esp | |
487 #sub main'wtmp | |
488 # { | |
489 # local($num)=@_; | |
490 # | |
491 # return(&main'DWP(-($num+1)*4,"esp","",0)); | |
492 # } | |
493 | |
494 sub main'comment | |
495 { | |
496 if (!defined($com_start) or $main'elf) | |
497 { # Regarding $main'elf above... | |
498 # GNU and SVR4 as'es use different comment delimiters, | |
499 push(@out,"\n"); # so we just skip ELF comments... | |
500 return; | |
501 } | |
502 foreach (@_) | |
503 { | |
504 if (/^\s*$/) | |
505 { push(@out,"\n"); } | |
506 else | |
507 { push(@out,"\t$com_start $_ $com_end\n"); } | |
508 } | |
509 } | |
510 | |
511 sub main'public_label | |
512 { | |
513 $label{$_[0]}="${under}${_[0]}" if (!defined($label{$_[0]})); | |
514 push(@out,".globl\t$label{$_[0]}\n"); | |
515 } | |
516 | |
517 sub main'label | |
518 { | |
519 if (!defined($label{$_[0]})) | |
520 { | |
521 $label{$_[0]}="${dot}${label}${_[0]}"; | |
522 $label++; | |
523 } | |
524 return($label{$_[0]}); | |
525 } | |
526 | |
527 sub main'set_label | |
528 { | |
529 if (!defined($label{$_[0]})) | |
530 { | |
531 $label{$_[0]}="${dot}${label}${_[0]}"; | |
532 $label++; | |
533 } | |
534 if ($_[1]!=0) | |
535 { | |
536 if ($_[1]>1) { main'align($_[1]); } | |
537 else { push(@out,".align $align\n"); } | |
538 } | |
539 push(@out,"$label{$_[0]}:\n"); | |
540 } | |
541 | |
542 sub main'file_end | |
543 { | |
544 # try to detect if SSE2 or MMX extensions were used on ELF platform... | |
545 if ($main'elf && grep {/\b%[x]*mm[0-7]\b|OPENSSL_ia32cap_P\b/i} @out) { | |
546 local($tmp); | |
547 | |
548 push (@out,"\n.section\t.bss\n"); | |
549 push (@out,".comm\t${under}OPENSSL_ia32cap_P,4,4\n"); | |
550 | |
551 return; | |
552 } | |
553 | |
554 if ($const ne "") | |
555 { | |
556 push(@out,".section .rodata\n"); | |
557 push(@out,$const); | |
558 $const=""; | |
559 } | |
560 } | |
561 | |
562 sub main'data_byte | |
563 { | |
564 push(@out,"\t.byte\t".join(',',@_)."\n"); | |
565 } | |
566 | |
567 sub main'data_word | |
568 { | |
569 push(@out,"\t.long\t".join(',',@_)."\n"); | |
570 } | |
571 | |
572 sub main'align | |
573 { | |
574 my $val=$_[0],$p2,$i; | |
575 if ($main'aout) { | |
576 for ($p2=0;$val!=0;$val>>=1) { $p2++; } | |
577 $val=$p2-1; | |
578 $val.=",0x90"; | |
579 } | |
580 push(@out,".align\t$val\n"); | |
581 } | |
582 | |
583 # debug output functions: puts, putx, printf | |
584 | |
585 sub main'puts | |
586 { | |
587 &pushvars(); | |
588 &main'push('$Lstring' . ++$constl); | |
589 &main'call('puts'); | |
590 $stack-=4; | |
591 &main'add("esp",4); | |
592 &popvars(); | |
593 | |
594 $const .= "Lstring$constl:\n\t.string \"@_[0]\"\n"; | |
595 } | |
596 | |
597 sub main'putx | |
598 { | |
599 &pushvars(); | |
600 &main'push($_[0]); | |
601 &main'push('$Lstring' . ++$constl); | |
602 &main'call('printf'); | |
603 &main'add("esp",8); | |
604 $stack-=8; | |
605 &popvars(); | |
606 | |
607 $const .= "Lstring$constl:\n\t.string \"\%X\"\n"; | |
608 } | |
609 | |
610 sub main'printf | |
611 { | |
612 $ostack = $stack; | |
613 &pushvars(); | |
614 for ($i = @_ - 1; $i >= 0; $i--) | |
615 { | |
616 if ($i == 0) # change this to support %s format strings | |
617 { | |
618 &main'push('$Lstring' . ++$constl); | |
619 $const .= "Lstring$constl:\n\t.string \"@_[$i]\"\n"; | |
620 } | |
621 else | |
622 { | |
623 if ($_[$i] =~ /([0-9]*)\(%esp\)/) | |
624 { | |
625 &main'push(($1 + $stack - $ostack) . '(%esp)'); | |
626 } | |
627 else | |
628 { | |
629 &main'push($_[$i]); | |
630 } | |
631 } | |
632 } | |
633 &main'call('printf'); | |
634 $stack-=4*@_; | |
635 &main'add("esp",4*@_); | |
636 &popvars(); | |
637 } | |
638 | |
639 sub pushvars | |
640 { | |
641 &main'pushf(); | |
642 &main'push("edx"); | |
643 &main'push("ecx"); | |
644 &main'push("eax"); | |
645 } | |
646 | |
647 sub popvars | |
648 { | |
649 &main'pop("eax"); | |
650 &main'pop("ecx"); | |
651 &main'pop("edx"); | |
652 &main'popf(); | |
653 } | |
654 | |
655 sub main'picmeup | |
656 { | |
657 local($dst,$sym)=@_; | |
658 if ($main'cpp) | |
659 { | |
660 local($tmp)=<<___; | |
661 #if (defined(ELF) || defined(SOL)) && defined(PIC) | |
662 call 1f | |
663 1: popl $regs{$dst} | |
664 addl \$_GLOBAL_OFFSET_TABLE_+[.-1b],$regs{$dst} | |
665 movl $sym\@GOT($regs{$dst}),$regs{$dst} | |
666 #else | |
667 leal $sym,$regs{$dst} | |
668 #endif | |
669 ___ | |
670 push(@out,$tmp); | |
671 } | |
672 elsif ($main'pic && ($main'elf || $main'aout)) | |
673 { | |
674 &main'call(&main'label("PIC_me_up")); | |
675 &main'set_label("PIC_me_up"); | |
676 &main'blindpop($dst); | |
677 &main'add($dst,"\$${under}_GLOBAL_OFFSET_TABLE_+[.-". | |
678 &main'label("PIC_me_up") . "]"); | |
679 &main'mov($dst,&main'DWP($under.$sym."\@GOT",$dst)); | |
680 } | |
681 else | |
682 { | |
683 &main'lea($dst,&main'DWP($sym)); | |
684 } | |
685 } | |
686 | |
687 sub main'blindpop { &out1("popl",@_); } | |
688 | |
689 sub main'initseg | |
690 { | |
691 local($f)=@_; | |
692 local($tmp); | |
693 if ($main'elf) | |
694 { | |
695 $tmp=<<___; | |
696 .section .init | |
697 call $under$f | |
698 jmp .Linitalign | |
699 .align $align | |
700 .Linitalign: | |
701 ___ | |
702 } | |
703 elsif ($main'coff) | |
704 { | |
705 $tmp=<<___; # applies to both Cygwin and Mingw | |
706 .section .ctors | |
707 .long $under$f | |
708 ___ | |
709 } | |
710 elsif ($main'aout) | |
711 { | |
712 local($ctor)="${under}_GLOBAL_\$I\$$f"; | |
713 $tmp=".text\n"; | |
714 $tmp.=".type $ctor,\@function\n" if ($main'pic); | |
715 $tmp.=<<___; # OpenBSD way... | |
716 .globl $ctor | |
717 .align 2 | |
718 $ctor: | |
719 jmp $under$f | |
720 ___ | |
721 } | |
722 push(@out,$tmp) if ($tmp); | |
723 } | |
724 | |
725 1; | |
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