1 %************************************************************************
3 \section[Driver-asm-fiddling]{Fiddling with assembler files}
5 %************************************************************************
10 Utterly stomp out C functions' prologues and epilogues; i.e., the
11 stuff to do with the C stack.
13 Any other required tidying up.
19 The HP linker is very picky about symbols being in the appropriate
20 space (code vs. data). When we mangle the threaded code to put the
21 info tables just prior to the code, they wind up in code space
22 rather than data space. This means that references to *_info from
23 un-mangled parts of the RTS (e.g. unthreaded GC code) get
24 unresolved symbols. Solution: mini-mangler for .c files on HP. I
25 think this should really be triggered in the driver by a new -rts
26 option, so that user code doesn't get mangled inappropriately.
28 With reversed tables, jumps are to the _info label rather than to
29 the _entry label. The _info label is just an address in code
30 space, rather than an entry point with the descriptive blob we
31 talked about yesterday. As a result, you can't use the call-style
32 JMP_ macro. However, some JMP_ macros take _info labels as targets
33 and some take code entry points within the RTS. The latter won't
34 work with the goto-style JMP_ macro. Sigh. Solution: Use the goto
35 style JMP_ macro, and mangle some more assembly, changing all
36 "RP'literal" and "LP'literal" references to "R'literal" and
37 "L'literal," so that you get the real address of the code, rather
38 than the descriptive blob. Also change all ".word P%literal"
39 entries in info tables and vector tables to just ".word literal,"
40 for the same reason. Advantage: No more ridiculous call sequences.
43 %************************************************************************
45 \subsection{Constants for various architectures}
47 %************************************************************************
50 sub init_TARGET_STUFF {
52 #--------------------------------------------------------#
53 if ( $TargetPlatform =~ /^alpha-.*-.*/ ) {
55 $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
56 $T_US = ''; # _ if symbols have an underscore on the front
57 $T_DO_GC = 'PerformGC_wrapper';
58 $T_PRE_APP = 'DONT THINK THIS APPLIES'; # regexp that says what comes before APP/NO_APP
59 $T_CONST_LBL = '^\$C(\d+):$'; # regexp for what such a lbl looks like
62 $T_MOVE_DIRVS = '^(\s*(\.align\s+\d+|\.(globl|ent)\s+\S+|\#.*|\.(file|loc)\s+\S+\s+\S+|\.text|\.r?data)\n)';
63 $T_COPY_DIRVS = '^\s*(\#|\.(file|globl|ent|loc))';
65 $T_hsc_cc_PAT = '\.ascii.*\)(hsc|cc) (.*)\\\\11"\n\t\.ascii\s+"(.*)\\\\0"';
66 $T_DOT_WORD = '\.quad';
67 $T_DOT_GLOBAL = '^\t\.globl';
68 $T_HDR_literal = "\.rdata\n\t\.align 3\n";
69 $T_HDR_misc = "\.text\n\t\.align 3\n";
70 $T_HDR_data = "\.data\n\t\.align 3\n";
71 $T_HDR_consist = "\.text\n";
72 $T_HDR_closure = "\.data\n\t\.align 3\n";
73 $T_HDR_info = "\.text\n\t\.align 3\n";
74 $T_HDR_entry = "\.text\n\t\.align 3\n";
75 $T_HDR_fast = "\.text\n\t\.align 3\n";
76 $T_HDR_vector = "\.text\n\t\.align 3\n";
77 $T_HDR_direct = "\.text\n\t\.align 3\n";
79 #--------------------------------------------------------#
80 } elsif ( $TargetPlatform =~ /^hppa/ ) {
82 $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
83 $T_US = ''; # _ if symbols have an underscore on the front
84 $T_DO_GC = 'PerformGC_wrapper';
85 $T_PRE_APP = 'DONT THINK THIS APPLIES'; # regexp that says what comes before APP/NO_APP
86 $T_CONST_LBL = '^L\$C(\d+)$'; # regexp for what such a lbl looks like
89 $T_MOVE_DIRVS = '^((\s+\.(IMPORT|EXPORT|PARAM).*|\s+\.align\s+\d+|\s+\.(SPACE|SUBSPA)\s+\S+|\s*)\n)';
90 $T_COPY_DIRVS = '^\s+\.(IMPORT|EXPORT)';
92 $T_hsc_cc_PAT = '\.STRING.*\)(hsc|cc) (.*)\\\\x09(.*)\\\\x00';
93 $T_DOT_WORD = '\.word';
94 $T_DOT_GLOBAL = '^\s+\.EXPORT';
95 $T_HDR_literal = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$LIT\$\n";
96 $T_HDR_misc = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$CODE\$\n\t\.align 4\n";
97 $T_HDR_data = "\t.SPACE \$PRIVATE\$\n\t.SUBSPA \$DATA\$\n\t\.align 4\n";
98 $T_HDR_consist = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$LIT\$\n";
99 $T_HDR_closure = "\t.SPACE \$PRIVATE\$\n\t.SUBSPA \$DATA\$\n\t\.align 4\n";
100 $T_HDR_info = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$CODE\$\n\t\.align 4\n";
101 $T_HDR_entry = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$CODE\$\n\t\.align 4\n";
102 $T_HDR_fast = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$CODE\$\n\t\.align 4\n";
103 $T_HDR_vector = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$CODE\$\n\t\.align 4\n";
104 $T_HDR_direct = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$CODE\$\n\t\.align 4\n";
106 #--------------------------------------------------------#
107 } elsif ( $TargetPlatform =~ /^i386-.*-(linuxaout|freebsd|nextstep3|cygwin32)/ ) {
108 # NeXT added but not tested. CaS
110 $T_STABBY = 1; # 1 iff .stab things (usually if a.out format)
111 $T_US = '_'; # _ if symbols have an underscore on the front
112 $T_DO_GC = '_PerformGC_wrapper';
113 $T_PRE_APP = '^#'; # regexp that says what comes before APP/NO_APP
114 $T_CONST_LBL = '^LC(\d+):$';
116 $T_X86_PRE_LLBL_PAT = 'L';
117 $T_X86_PRE_LLBL = 'L';
118 $T_X86_BADJMP = '^\tjmp [^L\*]';
120 $T_MOVE_DIRVS = '^(\s*(\.align\s+\d+(,0x90)?|\.globl\s+\S+|\.text|\.data|\.stab[^n].*|\.type\s+.*|\.size\s+.*)\n)';
121 $T_COPY_DIRVS = '\.(globl|stab)';
122 $T_hsc_cc_PAT = '\.ascii.*\)(hsc|cc) (.*)\\\\11"\n\t\.ascii\s+"(.*)\\\\0"';
123 $T_DOT_WORD = '\.long';
124 $T_DOT_GLOBAL = '\.globl';
125 $T_HDR_literal = "\.text\n\t\.align 2\n";
126 $T_HDR_misc = "\.text\n\t\.align 2,0x90\n";
127 $T_HDR_data = "\.data\n\t\.align 2\n";
128 $T_HDR_consist = "\.text\n";
129 $T_HDR_closure = "\.data\n\t\.align 2\n";
130 $T_HDR_info = "\.text\n\t\.align 2\n"; # NB: requires padding
131 $T_HDR_entry = "\.text\n"; # no .align so we're right next to _info (arguably wrong...?)
132 $T_HDR_fast = "\.text\n\t\.align 2,0x90\n";
133 $T_HDR_vector = "\.text\n\t\.align 2\n"; # NB: requires padding
134 $T_HDR_direct = "\.text\n\t\.align 2,0x90\n";
136 #--------------------------------------------------------#
137 } elsif ( $TargetPlatform =~ /^i386-.*-(solaris2|linux)$/ ) {
139 $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
140 $T_US = ''; # _ if symbols have an underscore on the front
141 $T_DO_GC = 'PerformGC_wrapper';
142 $T_PRE_APP = # regexp that says what comes before APP/NO_APP
143 ($TargetPlatform =~ /-linux$/) ? '#' : '/' ;
144 $T_CONST_LBL = '^\.LC(\d+):$'; # regexp for what such a lbl looks like
146 $T_X86_PRE_LLBL_PAT = '\.L';
147 $T_X86_PRE_LLBL = '.L';
148 $T_X86_BADJMP = '^\tjmp [^\.\*]';
150 $T_MOVE_DIRVS = '^(\s*(\.align\s+\d+(,0x90)?|\.globl\s+\S+|\.text|\.data|\.section\s+.*|\.type\s+.*|\.Lfe.*\n\t\.size\s+.*|\.size\s+.*|\.ident.*)\n)';
151 $T_COPY_DIRVS = '\.(globl)';
153 $T_hsc_cc_PAT = '\.string.*\)(hsc|cc) (.*)\\\\t(.*)"';
154 $T_DOT_WORD = '\.long';
155 $T_DOT_GLOBAL = '\.globl';
156 $T_HDR_literal = "\.section\t\.rodata\n"; # or just use .text??? (WDP 95/11)
157 $T_HDR_misc = "\.text\n\t\.align 16\n";
158 $T_HDR_data = "\.data\n\t\.align 4\n"; # ToDo: change align??
159 $T_HDR_consist = "\.text\n";
160 $T_HDR_closure = "\.data\n\t\.align 4\n"; # ToDo: change align?
161 $T_HDR_info = "\.text\n\t\.align 16\n"; # NB: requires padding
162 $T_HDR_entry = "\.text\n"; # no .align so we're right next to _info (arguably wrong...?)
163 $T_HDR_fast = "\.text\n\t\.align 16\n";
164 $T_HDR_vector = "\.text\n\t\.align 16\n"; # NB: requires padding
165 $T_HDR_direct = "\.text\n\t\.align 16\n";
167 #--------------------------------------------------------#
168 } elsif ( $TargetPlatform =~ /^m68k-.*-sunos4/ ) {
170 $T_STABBY = 1; # 1 iff .stab things (usually if a.out format)
171 $T_US = '_'; # _ if symbols have an underscore on the front
172 $T_DO_GC = '_PerformGC_wrapper';
173 $T_PRE_APP = '^# MAY NOT APPLY'; # regexp that says what comes before APP/NO_APP
174 $T_CONST_LBL = '^LC(\d+):$';
177 $T_MOVE_DIRVS = '^(\s*(\.align\s+\d+|\.proc\s+\d+|\.const|\.cstring|\.globl\s+\S+|\.text|\.data|\.even|\.stab[^n].*)\n)';
178 $T_COPY_DIRVS = '\.(globl|proc|stab)';
179 $T_hsc_cc_PAT = '\.ascii.*\)(hsc|cc) (.*)\\\\11"\n\t\.ascii\s+"(.*)\\\\0"';
181 $T_DOT_WORD = '\.long';
182 $T_DOT_GLOBAL = '\.globl';
183 $T_HDR_literal = "\.text\n\t\.even\n";
184 $T_HDR_misc = "\.text\n\t\.even\n";
185 $T_HDR_data = "\.data\n\t\.even\n";
186 $T_HDR_consist = "\.text\n";
187 $T_HDR_closure = "\.data\n\t\.even\n";
188 $T_HDR_info = "\.text\n\t\.even\n";
189 $T_HDR_entry = "\.text\n\t\.even\n";
190 $T_HDR_fast = "\.text\n\t\.even\n";
191 $T_HDR_vector = "\.text\n\t\.even\n";
192 $T_HDR_direct = "\.text\n\t\.even\n";
194 #--------------------------------------------------------#
195 } elsif ( $TargetPlatform =~ /^mips-.*/ ) {
197 $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
198 $T_US = ''; # _ if symbols have an underscore on the front
199 $T_DO_GC = 'PerformGC_wrapper';
200 $T_PRE_APP = '^\s*#'; # regexp that says what comes before APP/NO_APP
201 $T_CONST_LBL = '^\$LC(\d+):$'; # regexp for what such a lbl looks like
204 $T_MOVE_DIRVS = '^(\s*(\.align\s+\d+|\.(globl|ent)\s+\S+|\.text|\.r?data)\n)';
205 $T_COPY_DIRVS = '\.(globl|ent)';
207 $T_hsc_cc_PAT = 'I WAS TOO LAZY TO DO THIS BIT (WDP 95/05)';
208 $T_DOT_WORD = '\.word';
209 $T_DOT_GLOBAL = '^\t\.globl';
210 $T_HDR_literal = "\t\.rdata\n\t\.align 2\n";
211 $T_HDR_misc = "\t\.text\n\t\.align 2\n";
212 $T_HDR_data = "\t\.data\n\t\.align 2\n";
213 $T_HDR_consist = 'TOO LAZY TO DO THIS TOO';
214 $T_HDR_closure = "\t\.data\n\t\.align 2\n";
215 $T_HDR_info = "\t\.text\n\t\.align 2\n";
216 $T_HDR_entry = "\t\.text\n\t\.align 2\n";
217 $T_HDR_fast = "\t\.text\n\t\.align 2\n";
218 $T_HDR_vector = "\t\.text\n\t\.align 2\n";
219 $T_HDR_direct = "\t\.text\n\t\.align 2\n";
221 #--------------------------------------------------------#
222 } elsif ( $TargetPlatform =~ /^powerpc-.*|^rs6000-.*/ ) {
224 $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
225 $T_US = ''; # _ if symbols have an underscore on the front
226 $T_DO_GC = '\.PerformGC_wrapper';
227 $T_PRE_APP = 'NOT APPLICABLE'; # regexp that says what comes before APP/NO_APP
228 $T_CONST_LBL = 'NOT APPLICABLE'; # regexp for what such a lbl looks like
231 $T_MOVE_DIRVS = '^(\s*(\.toc|\.align \d+|\.csect \S+|\t\.?l?globl \S+)\n)';
232 $T_COPY_DIRVS = '\.(l?globl)';
234 $T_hsc_cc_PAT = '\.byte.*\)(hsc|cc) (.*)"\n\t\.byte \d+\n\t\.byte "(.*)"\n\t\.byte \d+';
235 $T_DOT_WORD = '\.long';
236 $T_DOT_GLOBAL = '\.globl';
237 $T_HDR_toc = "\.toc\n";
238 $T_HDR_literal = "\.csect .data[RW]\n\t\.align 2\n"; #not RO!?
239 $T_HDR_misc = "# misc\n\.csect \.text[PR]\n\t\.align 2\n";
240 $T_HDR_data = "# data\n\.csect \.data[RW]\n\t\.align 2\n";
241 $T_HDR_consist = "# consist\n\.csect \.data[RW]\n\t\.align 2\n";
242 $T_HDR_closure = "# closure\n\.csect \.data[RW]\n\t\.align 2\n";
243 $T_HDR_info = "# info\n\.csect \.data[RW]\n\t\.align 2\n"; #not RO!?
244 $T_HDR_entry = "# entry\n\.csect \.text[PR]\n\t\.align 2\n";
245 $T_HDR_fast = "# fast\n\.csect \.text[PR]\n\t\.align 2\n";
246 $T_HDR_vector = "# vector\n\.csect \.data[RW]\n\t\.align 2\n"; #not RO!?
247 $T_HDR_direct = "# direct\n";
249 #--------------------------------------------------------#
250 } elsif ( $TargetPlatform =~ /^sparc-.*-solaris2/ ) {
252 $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
253 $T_US = ''; # _ if symbols have an underscore on the front
254 $T_DO_GC = 'PerformGC_wrapper';
255 $T_PRE_APP = 'DOES NOT SEEM TO APPLY'; # regexp that says what comes before APP/NO_APP
256 $T_CONST_LBL = '^\.LLC(\d+):$'; # regexp for what such a lbl looks like
259 $T_MOVE_DIRVS = '^((\s+\.align\s+\d+|\s+\.proc\s+\d+|\s+\.global\s+\S+|\.text|\.data|\.stab.*|\.section.*|\s+\.type.*|\s+\.size.*)\n)';
260 $T_COPY_DIRVS = '\.(global|proc|stab)';
262 $T_hsc_cc_PAT = '\.asciz.*\)(hsc|cc) (.*)\\\\t(.*)"';
263 $T_DOT_WORD = '\.word';
264 $T_DOT_GLOBAL = '^\t\.global';
265 $T_HDR_literal = "\.text\n\t\.align 8\n";
266 $T_HDR_misc = "\.text\n\t\.align 4\n";
267 $T_HDR_data = "\.data\n\t\.align 8\n";
268 $T_HDR_consist = "\.text\n";
269 $T_HDR_closure = "\.data\n\t\.align 4\n";
270 $T_HDR_info = "\.text\n\t\.align 4\n";
271 $T_HDR_entry = "\.text\n\t\.align 4\n";
272 $T_HDR_fast = "\.text\n\t\.align 4\n";
273 $T_HDR_vector = "\.text\n\t\.align 4\n";
274 $T_HDR_direct = "\.text\n\t\.align 4\n";
276 #--------------------------------------------------------#
277 } elsif ( $TargetPlatform =~ /^sparc-.*-sunos4/ ) {
279 $T_STABBY = 1; # 1 iff .stab things (usually if a.out format)
280 $T_US = '_'; # _ if symbols have an underscore on the front
281 $T_DO_GC = '_PerformGC_wrapper';
282 $T_PRE_APP = '^# DOES NOT SEEM TO APPLY'; # regexp that says what comes before APP/NO_APP
283 $T_CONST_LBL = '^LC(\d+):$';
286 $T_MOVE_DIRVS = '^((\s+\.align\s+\d+|\s+\.proc\s+\d+|\s+\.global\s+\S+|\.text|\.data|\.stab.*)\n)';
287 $T_COPY_DIRVS = '\.(global|proc|stab)';
288 $T_hsc_cc_PAT = '\.ascii.*\)(hsc|cc) (.*)\\\\11"\n\t\.ascii\s+"(.*)\\\\0"';
290 $T_DOT_WORD = '\.word';
291 $T_DOT_GLOBAL = '^\t\.global';
292 $T_HDR_literal = "\.text\n\t\.align 8\n";
293 $T_HDR_misc = "\.text\n\t\.align 4\n";
294 $T_HDR_data = "\.data\n\t\.align 8\n";
295 $T_HDR_consist = "\.text\n";
296 $T_HDR_closure = "\.data\n\t\.align 4\n";
297 $T_HDR_info = "\.text\n\t\.align 4\n";
298 $T_HDR_entry = "\.text\n\t\.align 4\n";
299 $T_HDR_fast = "\.text\n\t\.align 4\n";
300 $T_HDR_vector = "\.text\n\t\.align 4\n";
301 $T_HDR_direct = "\.text\n\t\.align 4\n";
303 #--------------------------------------------------------#
305 print STDERR "$Pgm: don't know how to mangle assembly language for: $TargetPlatform\n";
310 print STDERR "T_STABBY: $T_STABBY\n";
311 print STDERR "T_US: $T_US\n";
312 print STDERR "T_DO_GC: $T_DO_GC\n";
313 print STDERR "T_PRE_APP: $T_PRE_APP\n";
314 print STDERR "T_CONST_LBL: $T_CONST_LBL\n";
315 print STDERR "T_POST_LBL: $T_POST_LBL\n";
316 if ( $TargetPlatform =~ /^i386-/ ) {
317 print STDERR "T_X86_PRE_LLBL_PAT: $T_X86_PRE_LLBL_PAT\n";
318 print STDERR "T_X86_PRE_LLBL: $T_X86_PRE_LLBL\n";
319 print STDERR "T_X86_BADJMP: $T_X86_BADJMP\n";
321 print STDERR "T_MOVE_DIRVS: $T_MOVE_DIRVS\n";
322 print STDERR "T_COPY_DIRVS: $T_COPY_DIRVS\n";
323 print STDERR "T_hsc_cc_PAT: $T_hsc_cc_PAT\n";
324 print STDERR "T_DOT_WORD: $T_DOT_WORD\n";
325 print STDERR "T_HDR_literal: $T_HDR_literal\n";
326 print STDERR "T_HDR_misc: $T_HDR_misc\n";
327 print STDERR "T_HDR_data: $T_HDR_data\n";
328 print STDERR "T_HDR_consist: $T_HDR_consist\n";
329 print STDERR "T_HDR_closure: $T_HDR_closure\n";
330 print STDERR "T_HDR_info: $T_HDR_info\n";
331 print STDERR "T_HDR_entry: $T_HDR_entry\n";
332 print STDERR "T_HDR_fast: $T_HDR_fast\n";
333 print STDERR "T_HDR_vector: $T_HDR_vector\n";
334 print STDERR "T_HDR_direct: $T_HDR_direct\n";
340 %************************************************************************
342 \subsection{Mangle away}
344 %************************************************************************
348 local($in_asmf, $out_asmf) = @_;
350 # multi-line regexp matching:
355 &init_TARGET_STUFF();
356 &init_FUNNY_THINGS();
358 # perl4 on alphas SEGVs when give ${foo} substitutions in patterns.
359 # To avoid them we declare some locals that allows to avoid using curlies.
360 local($TUS) = ${T_US};
361 local($TPOSTLBL) = ${T_POST_LBL};
362 local($TMOVEDIRVS) = ${T_MOVE_DIRVS};
363 local($TPREAPP) = ${T_PRE_APP};
364 local($TCOPYDIRVS) = ${T_COPY_DIRVS};
365 local($TDOTWORD) = ${T_DOT_WORD};
367 open(INASM, "< $in_asmf")
368 || &tidy_up_and_die(1,"$Pgm: failed to open `$in_asmf' (to read)\n");
369 open(OUTASM,"> $out_asmf")
370 || &tidy_up_and_die(1,"$Pgm: failed to open `$out_asmf' (to write)\n");
372 # read whole file, divide into "chunks":
373 # record some info about what we've found...
375 @chk = (); # contents of the chunk
376 $numchks = 0; # number of them
377 @chkcat = (); # what category of thing in each chunk
378 @chksymb = (); # what symbol(base) is defined in this chunk
379 %slowchk = (); # ditto, its regular "slow" entry code
380 %fastchk = (); # ditto, fast entry code
381 %closurechk = (); # ditto, the (static) closure
382 %infochk = (); # given a symbol base, say what chunk its info tbl is in
383 %vectorchk = (); # ditto, return vector table
384 %directchk = (); # ditto, direct return code
385 $EXTERN_DECLS = ''; # .globl <foo> .text (MIPS only)
387 $i = 0; $chkcat[0] = 'misc'; $chk[0] = '';
390 next if $T_STABBY && /^\.stab.*$TUS[@]?__stg_split_marker/o;
391 next if $T_STABBY && /^\.stab.*ghc.*c_ID/;
392 next if /$TPREAPP(NO_)?APP/o;
393 next if /^;/ && $TargetPlatform =~ /^hppa/;
395 next if /(^$|^\t\.file\t|^ # )/ && $TargetPlatform =~ /^(mips|powerpc|rs6000)-/;
397 last if /^_section_\.text:$/ && $TargetPlatform =~ /^powerpc-|^rs6000-/;
399 if ( $TargetPlatform =~ /^mips-/
400 && /^\t\.(globl \S+ \.text|comm\t)/ ) {
401 $EXTERN_DECLS .= $_ unless /(__DISCARD__|\b(PK_|ASSIGN_)(FLT|DBL)\b)/;
403 } elsif ( /^\s+/ ) { # most common case first -- a simple line!
404 # duplicated from the bottom
408 } elsif ( /\.\.ng:$/ && $TargetPlatform =~ /^alpha-/ ) {
409 # Alphas: Local labels not to be confused with new chunks
412 # NB: all the rest start with a non-space
414 } elsif ( $TargetPlatform =~ /^mips-/
415 && /^\d+:/ ) { # a funny-looking very-local label
418 } elsif ( /$T_CONST_LBL/o ) {
420 $chkcat[$i] = 'literal';
423 } elsif ( /^$TUS[@]?__stg_split_marker(\d+)$TPOSTLBL[@]?$/o ) {
425 $chkcat[$i] = 'splitmarker';
428 } elsif ( /^$TUS[@]?([A-Za-z0-9_]+)_info$TPOSTLBL[@]?$/o ) {
431 $chkcat[$i] = 'infotbl';
432 $chksymb[$i] = $symb;
434 die "Info table already? $symb; $i\n" if defined($infochk{$symb});
436 $infochk{$symb} = $i;
438 } elsif ( /^$TUS[@]?([A-Za-z0-9_]+)_entry$TPOSTLBL[@]?$/o ) {
440 $chkcat[$i] = 'slow';
445 } elsif ( /^$TUS[@]?([A-Za-z0-9_]+)_fast\d+$TPOSTLBL[@]?$/o ) {
447 $chkcat[$i] = 'fast';
452 } elsif ( /^$TUS[@]?([A-Za-z0-9_]+)_closure$TPOSTLBL[@]?$/o ) {
454 $chkcat[$i] = 'closure';
457 $closurechk{$1} = $i;
459 } elsif ( /^$TUS[@]?ghc.*c_ID$TPOSTLBL/o ) {
461 $chkcat[$i] = 'consist';
463 } elsif ( /^($TUS[@]?__gnu_compiled_c|gcc2_compiled\.)$TPOSTLBL/o ) {
466 } elsif ( /^$TUS[@]?ErrorIO_call_count$TPOSTLBL[@]?$/o # HACK!!!!
467 || /^$TUS[A-Za-z0-9_]+\.\d+$TPOSTLBL[@]?$/o
468 || /^$TUS[@]?.*_CAT$TPOSTLBL[@]?$/o # PROF: _entryname_CAT
469 || /^$TUS[@]?CC_.*_struct$TPOSTLBL[@]?$/o # PROF: _CC_ccident_struct
470 || /^$TUS[@]?.*_done$TPOSTLBL[@]?$/o # PROF: _module_done
471 || /^$TUS[@]?_module_registered$TPOSTLBL[@]?$/o # PROF: _module_registered
474 $chkcat[$i] = 'data';
477 } elsif ( /^([A-Za-z0-9_]+)\s+\.comm/ && $TargetPlatform =~ /^hppa/ ) {
482 } elsif ( $TargetPlatform =~ /^powerpc-|^rs6000-/ && /^LC\.\.([0-9]+)/ ) {
487 } elsif ( /^($TUS[@]?(ret_|djn_)[A-Za-z0-9_]+)/o ) {
489 $chkcat[$i] = 'misc';
492 $chksymb[$i] = $symbtmp if ($TargetPlatform =~ /^powerpc-|^rs6000-/) ; #rm andre
494 } elsif ( /^$TUS[@]?vtbl_([A-Za-z0-9_]+)$TPOSTLBL[@]?$/o ) {
496 $chkcat[$i] = 'vector';
501 } elsif ( /^$TUS[@]?([A-Za-z0-9_]+)DirectReturn$TPOSTLBL[@]?$/o ) {
503 $chkcat[$i] = 'direct';
508 } elsif ( /^$TUS[@]?([A-Za-z0-9_]+)_upd$TPOSTLBL[@]?$/o ) {
510 $chkcat[$i] = 'misc';
511 print STDERR "_upd!!!!! I guess this code is dead!!!!\n";
512 # I guess this is never entered, since all _upds are
513 # either vtbl_'s or ret_'s, caught above. - andre
516 } elsif ( $TargetPlatform =~ /^i386-.*-solaris2/
517 && /^(_uname|uname|stat|fstat):/ ) {
518 # for some utterly bizarre reason, this platform
519 # likes to drop little local C routines with these names
520 # into each and every .o file that #includes the
521 # relevant system .h file. Yuck. We just don't
522 # tolerate them in .hc files (which we are processing
523 # here). If you need to call one of these things from
524 # Haskell, make a call to your own C wrapper, then
525 # put that C wrapper (which calls one of these) in a
526 # plain .c file. WDP 95/12
528 $chkcat[$i] = 'toss';
531 } elsif ( /^$TUS[@]?[A-Za-z0-9_]/o
532 && ( $TargetPlatform !~ /^hppa/ # need to avoid local labels in this case
534 && ( $TargetPlatform !~ /^powerpc|^rs6000/ # ditto
535 || ! /^(L\.\.\d+|LT\.\..*):$/ ) ) {
538 print STDERR "Funny global thing?: $_"
539 unless $KNOWN_FUNNY_THING{$thing}
540 || /^$TUS[@]?_(PRIn|PRStart).*$TPOSTLBL[@]?$/o # pointer reversal GC routines
541 || /^$TUS[@]?CC_.*$TPOSTLBL$/o # PROF: _CC_ccident ([@]? is a silly hack (see above))
542 || /^$TUS[@]?_reg.*$TPOSTLBL$/o; # PROF: __reg<module>
544 $chkcat[$i] = 'misc';
545 if ($TargetPlatform =~ /^powerpc-|^rs6000-/)
546 { $chksymb[$i] = $thing; }
547 else { $chksymb[$i] = ''; };
549 } else { # simple line (duplicated at the top)
554 $numchks = $#chk + 1;
556 # the division into chunks is imperfect;
557 # we throw some things over the fence into the next
560 # also, there are things we would like to know
561 # about the whole module before we start spitting
564 local($FIRST_MANGLABLE) = ($TargetPlatform =~ /^(alpha-|hppa|mips-)/) ? 1 : 0;
566 # print STDERR "first chunk to mangle: $FIRST_MANGLABLE\n";
568 # Alphas: NB: we start meddling at chunk 1, not chunk 0
569 # The first ".rdata" is quite magical; as of GCC 2.7.x, it
570 # spits a ".quad 0" in after the v first ".rdata"; we
571 # detect this special case (tossing the ".quad 0")!
572 local($magic_rdata_seen) = 0;
574 # HPPAs, MIPSen: also start medding at chunk 1
576 if ($TargetPlatform =~ /^powerpc|^rs6000/) {
577 print OUTASM $T_HDR_toc; # yes, we have to put a .toc
578 # in the beginning of every file!
579 %tocequiv = (); # maps toc symbol number to toc symbol
580 %revtocequiv = (); # maps toc symbol to toc symbol number
581 for ($i = 1; $i < $numchks; $i++) {
582 $chk[$i] =~ s/\[RW\]//g;
583 $chk[$i] =~ s/\[DS\]//g;
584 $chk[$i] =~ s/^\.csect .*\[DS\]$//g;
586 if ( $chkcat[$i] eq 'toc' && $chk[$i] !~ /\.byte/ )
587 { $chk[$i] =~ s/$T_MOVE_DIRVS//g;
588 $chk[$i] =~ s/\t\.tc (\S+)\[TC\],(\S+_fast\d+)/\t\.tc \1\[TC\],\.\2/;
589 $chk[$i] =~ s/\t\.tc (\S+)\[TC\],(\S+_entry)\n/\t\.tc \1\[TC\],\.\2\n/;
590 $chk[$i] =~ s/\t\.tc (\S+)\[TC\],(ret_\S+)/\t\.tc \1\[TC\],\.\2/;
591 $chk[$i] =~ s/\t\.tc (\S+)\[TC\],(djn_\S+)/\t\.tc \1\[TC\],\.\2/;
592 $chk[$i] =~ s/\t\.tc (\S+)\[TC\],(vtbl_\S+)/\t\.tc \1\[TC\],\.\2/;
593 $chk[$i] =~ s/\t\.tc (\S+)\[TC\],ErrorIO_innards/\t\.tc \1\[TC\],\.ErrorIO_innards/;
594 $chk[$i] =~ s/\t\.tc (\S+)\[TC\],startStgWorld/\t\.tc \1\[TC\],\.startStgWorld/;
595 $chk[$i] =~ s/\.tc UpdatePAP\[TC\],UpdatePAP/\.tc UpdatePAP\[TC\],\.UpdatePAP/;
596 $chk[$i] =~ s/\.tc IndUpdRetDir\[TC\],IndUpdRetDir/\.tc IndUpdRetDir\[TC\],\.IndUpdRetDir/;
597 $chk[$i] =~ s/\t\.tc (_PRStart_\S+)\[TC\],_PRStart_\S+/\t\.tc \1\[TC\],\.\1/;
599 $tocnumber = $chksymb[$i];
601 $tocsymb =~ s/^LC\.\.\d+:\n//;
602 $tocsymb =~ s/^\t\.tc \S+,(\S+)\n/\1/;
603 $tocequiv{$tocnumber} = $tocsymb;
605 } elsif ( $chkcat[$i] eq 'toc' && $chk[$i] =~ /\.byte/ ) {
606 $chkcat[$i] = 'literal';
611 for ($i = $FIRST_MANGLABLE; $i < $numchks; $i++) {
612 $c = $chk[$i]; # convenience copy
614 # print STDERR "\nCHK $i (BEFORE) (",$chkcat[$i],"):\n", $c;
616 # toss all prologue stuff; HPPA is pretty weird
618 $c = &mash_hppa_prologue($c) if $TargetPlatform =~ /^hppa/;
620 # be slightly paranoid to make sure there's
621 # nothing surprising in there
622 if ( $c =~ /--- BEGIN ---/ ) {
623 if (($p, $r) = split(/--- BEGIN ---/, $c)) {
625 if ($TargetPlatform =~ /^i386-/) {
626 $p =~ s/^\tpushl \%edi\n//;
627 $p =~ s/^\tpushl \%esi\n//;
628 $p =~ s/^\tsubl \$\d+,\%esp\n//;
629 $p =~ s/^\tmovl \$\d+,\%eax\n\tcall __alloca\n// if ($TargetPlatform =~ /^.*-cygwin32/);
630 } elsif ($TargetPlatform =~ /^m68k-/) {
631 $p =~ s/^\tlink a6,#-?\d.*\n//;
632 $p =~ s/^\tpea a6@\n\tmovel sp,a6\n//;
633 # The above showed up in the asm code,
634 # so I added it here.
635 # I hope it's correct.
637 $p =~ s/^\tmovel d2,sp\@-\n//;
638 $p =~ s/^\tmovel d5,sp\@-\n//; # SMmark.* only?
639 $p =~ s/^\tmoveml \#0x[0-9a-f]+,sp\@-\n//; # SMmark.* only?
640 } elsif ($TargetPlatform =~ /^mips-/) {
641 # the .frame/.mask/.fmask that we use is the same
642 # as that produced by GCC for miniInterpret; this
643 # gives GDB some chance of figuring out what happened
644 $FRAME = "\t.frame\t\$sp,2168,\$31\n\t.mask\t0x90000000,-4\n\t.fmask\t0x00000000,0\n";
645 $p =~ s/^\t\.(frame).*\n/__FRAME__/g;
646 $p =~ s/^\t\.(mask|fmask).*\n//g;
647 $p =~ s/^\t\.cprestore.*\n/\t\.cprestore 416\n/; # 16 + 100 4-byte args
648 $p =~ s/^\tsubu\t\$sp,\$sp,\d+\n//;
649 $p =~ s/^\tsw\t\$31,\d+\(\$sp\)\n//;
650 $p =~ s/^\tsw\t\$fp,\d+\(\$sp\)\n//;
651 $p =~ s/^\tsw\t\$28,\d+\(\$sp\)\n//;
652 $p =~ s/__FRAME__/$FRAME/;
653 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000/) {
654 $p =~ s/^\tmflr 0\n//;
655 $p =~ s/^\tstm \d+,-\d+\(1\)\n//;
656 $p =~ s/^\tstw? 0,\d+\(1\)\n//;
657 $p =~ s/^\tstw?u 1,-\d+\(1\)\n//;
658 $p =~ s/^\tstw? \d+,-\d+\(1\)\n//g;
659 $p =~ s/^\tstfd \d+,-\d+\(1\)\n//g;
661 print STDERR "$Pgm: unknown prologue mangling? $TargetPlatform\n";
664 die "Prologue junk?: $p\n" if $p =~ /^\t[^\.]/
665 && $TargetPlatform !~ /^powerpc-/; #ToDo: remove test
667 # glue together what's left
669 $c =~ s/\n\t\n/\n/; # junk blank line
673 if ( $TargetPlatform =~ /^mips-/ ) {
674 # MIPS: first, this basic sequence may occur "--- END ---" or not
675 $c =~ s/^\tlw\t\$31,\d+\(\$sp\)\n\taddu\t\$sp,\$sp,\d+\n\tj\t\$31\n\t\.end/\t\.end/;
678 # toss all epilogue stuff; again, paranoidly
679 if ( $c =~ /--- END ---/ ) {
680 if (($r, $e) = split(/--- END ---/, $c)) {
681 if ($TargetPlatform =~ /^i386-/) {
683 $e =~ s/^\tpopl \%edi\n//;
684 $e =~ s/^\tpopl \%esi\n//;
685 $e =~ s/^\taddl \$\d+,\%esp\n//;
686 } elsif ($TargetPlatform =~ /^m68k-/) {
687 $e =~ s/^\tunlk a6\n//;
689 } elsif ($TargetPlatform =~ /^mips-/) {
690 $e =~ s/^\tlw\t\$31,\d+\(\$sp\)\n//;
691 $e =~ s/^\tlw\t\$fp,\d+\(\$sp\)\n//;
692 $e =~ s/^\taddu\t\$sp,\$sp,\d+\n//;
693 $e =~ s/^\tj\t\$31\n//;
694 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
695 $e =~ s/^\taddi 1,1,\d+\n//;
696 $e =~ s/^\tcal 1,\d+\(1\)\n//;
697 $e =~ s/^\tlw?z? \d+,\d+\(1\)\n//;
698 $e =~ s/^\tmtlr 0\n//;
701 print STDERR "$Pgm: unknown epilogue mangling? $TargetPlatform\n";
703 die "Epilogue junk?: $e\n" if $e =~ /^\t[^\.]/
704 && $TargetPlatform !~ /^powerpc-/; #ToDo: remove test
706 # glue together what's left
708 $c =~ s/\n\t\n/\n/; # junk blank line
712 # On SPARCs, we don't do --- BEGIN/END ---, we just
713 # toss the register-windowing save/restore/ret* instructions
715 if ( $TargetPlatform =~ /^sparc-/ ) {
716 $c =~ s/^\t(save .*|restore|ret|retl)\n//g;
717 # throw away PROLOGUE comments
718 $c =~ s/^\t!#PROLOGUE# 0\n\t!#PROLOGUE# 1\n//;
721 # On Alphas, the prologue mangling is done a little later (below)
723 # toss all calls to __DISCARD__
724 $c =~ s/^\t(call|jbsr|jal)\s+$TUS[@]?__DISCARD__\n//go;
726 # MIPS: that may leave some gratuitous asm macros around
727 # (no harm done; but we get rid of them to be tidier)
728 $c =~ s/^\t\.set\tnoreorder\n\t\.set\tnomacro\n\taddu\t(\S+)\n\t\.set\tmacro\n\t\.set\treorder\n/\taddu\t$1\n/
729 if $TargetPlatform =~ /^mips-/;
731 # toss stack adjustment after DoSparks
732 $c =~ s/^(\tjbsr _DoSparks\n)\taddqw #8,sp/$1/g
733 if $TargetPlatform =~ /^m68k-/; # this looks old...
735 if ( $TargetPlatform =~ /^alpha-/ &&
736 ! $magic_rdata_seen &&
737 $c =~ /^\s*\.rdata\n\t\.quad 0\n\t\.align \d\n/ ) {
738 $c =~ s/^\s*\.rdata\n\t\.quad 0\n\t\.align (\d)\n/\.rdata\n\t\.align $1\n/;
739 $magic_rdata_seen = 1;
742 # pick some end-things and move them to the next chunk
744 # pin a funny end-thing on (for easier matching):
745 $c .= 'FUNNY#END#THING';
747 while ( $c =~ /$TMOVEDIRVS[@]?FUNNY#END#THING/o ) { # [@]? is a silly hack to avoid having to use curlies for T_PRE_APP
748 # (this SEGVs perl4 on alphas, you see)
751 if ( $i < ($numchks - 1)
752 && ( $to_move =~ /$TCOPYDIRVS/
753 || ($TargetPlatform =~ /^hppa/ && $to_move =~ /align/ && $chkcat[$i+1] eq 'literal') )) {
754 $chk[$i + 1] = $to_move . $chk[$i + 1];
755 # otherwise they're tossed
758 $c =~ s/$TMOVEDIRVS[@]?FUNNY#END#THING/FUNNY#END#THING/o; # [@]? is a hack (see above)
761 if ( $TargetPlatform =~ /^alpha-/ && $c =~ /^\t\.ent\s+(\S+)/ ) {
763 # toss all prologue stuff, except for loading gp, and the ..ng address
764 if (($p, $r) = split(/^\t\.prologue/, $c)) {
765 if (($keep, $junk) = split(/\.\.ng:/, $p)) {
766 $c = $keep . "..ng:\n";
768 print STDERR "malformed code block ($ent)?\n"
771 $c .= "\t.frame \$30,0,\$26,0\n\t.prologue" . $r;
774 $c =~ s/FUNNY#END#THING//;
776 # print STDERR "\nCHK $i (AFTER) (",$chkcat[$i],"):\n", $c;
778 $chk[$i] = $c; # update w/ convenience copy
781 if ( $TargetPlatform =~ /^alpha-/ ) {
782 # print out the header stuff first
783 $chk[0] =~ s/^(\t\.file.*)"(ghc\d+\.c)"/$1"$ifile_root.hc"/;
784 print OUTASM $chk[0];
786 } elsif ( $TargetPlatform =~ /^hppa/ ) {
787 print OUTASM $chk[0];
789 } elsif ( $TargetPlatform =~ /^mips-/ ) {
790 $chk[0] = "\t\.file\t1 \"$ifile_root.hc\"\n" . $chk[0];
792 # get rid of horrible "<dollar>Revision: .*$" strings
793 local(@lines0) = split(/\n/, $chk[0]);
795 while ( $z <= $#lines0 ) {
796 if ( $lines0[$z] =~ /^\t\.byte\t0x24,0x52,0x65,0x76,0x69,0x73,0x69,0x6f$/ ) {
799 while ( $z <= $#lines0 ) {
801 last if $lines0[$z] =~ /[,\t]0x0$/;
807 $chk[0] = join("\n", @lines0);
808 $chk[0] =~ s/\n\n+/\n/;
809 print OUTASM $chk[0];
812 # print out all the literal strings next
813 for ($i = 0; $i < $numchks; $i++) {
814 if ( $chkcat[$i] eq 'literal' ) {
815 print OUTASM $T_HDR_literal, $chk[$i];
816 print OUTASM "; end literal\n" if $TargetPlatform =~ /^hppa/; # for the splitter
818 $chkcat[$i] = 'DONE ALREADY';
822 # on the HPPA, print out all the bss next
823 if ( $TargetPlatform =~ /^hppa/ ) {
824 for ($i = 1; $i < $numchks; $i++) {
825 if ( $chkcat[$i] eq 'bss' ) {
826 print OUTASM "\t.SPACE \$PRIVATE\$\n\t.SUBSPA \$BSS\$\n\t.align 4\n";
827 print OUTASM $chk[$i];
829 $chkcat[$i] = 'DONE ALREADY';
834 for ($i = $FIRST_MANGLABLE; $i < $numchks; $i++) {
835 # print STDERR "$i: cat $chkcat[$i], symb $chksymb[$i]\n";
837 next if $chkcat[$i] eq 'DONE ALREADY';
839 if ( $chkcat[$i] eq 'misc' ) {
840 if ($chk[$i] ne '') {
841 print OUTASM $T_HDR_misc;
842 if ($TargetPlatform =~ /^powerpc-|^rs6000/) {
843 $chksymb[$i] =~ s/://;
844 #new if ($chksymb[$i] =~ /ret.*upd/ || $KNOWN_FUNNY_THING{$chksymb[$i]}
845 #new || $chksymb[$i] =~ /^$.{T_US}_(PRIn|PRStart).*${T_POST_LBL}$/o )
846 #new { print OUTASM "\t\.globl $chksymb[$i]\n"; }
847 if ($chksymb[$i] ne '')
848 { print OUTASM "\t\.globl \.$chksymb[$i]\n"; };
849 if ($chk[$i] =~ /TOC\[tc0\], 0\n/)
850 { ($p, $r) = split(/TOC\[tc0\], 0\n/, $chk[$i]); $printDS = 1;}
851 else { $r = $chk[$i]; $printDS = 0; };
852 $chk[$i] = &mangle_powerpc_tailjump($r);
854 &print_doctored($chk[$i], 0);
855 if ($TargetPlatform =~ /^powerpc-|^rs6000-/ && $printDS) {
856 print OUTASM "\.csect ${chksymb[$i]}[DS]\n";
857 print OUTASM "${p}TOC[tc0], 0\n";
861 } elsif ( $chkcat[$i] eq 'toss' ) {
862 print STDERR "*** NB: TOSSING code for $chksymb[$i] !!! ***\n";
864 } elsif ( $chkcat[$i] eq 'data' ) {
865 if ($chk[$i] ne '') {
866 print OUTASM $T_HDR_data;
867 print OUTASM $chk[$i];
870 } elsif ( $chkcat[$i] eq 'consist' ) {
871 if ( $chk[$i] =~ /$T_hsc_cc_PAT/o ) {
872 local($consist) = "$1.$2.$3";
874 $consist =~ s/\//./g;
876 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
877 print OUTASM $T_HDR_consist, "${consist}${T_POST_LBL}\n";
879 } elsif ( $TargetPlatform !~ /^(mips)-/ ) { # we just don't try in those case (ToDo)
880 # on mips: consistency string is just a v
881 # horrible bunch of .bytes,
882 # which I am too lazy to sort out (WDP 95/05)
884 print STDERR "Couldn't grok consistency: ", $chk[$i];
887 } elsif ( $chkcat[$i] eq 'splitmarker' ) {
888 # we can just re-constitute this one...
889 # NB: we emit _three_ underscores no matter what,
890 # so ghc-split doesn't have to care.
891 print OUTASM "___stg_split_marker",$chksymb[$i],"${T_POST_LBL}\n";
893 } elsif ( $chkcat[$i] eq 'closure'
894 || $chkcat[$i] eq 'infotbl'
895 || $chkcat[$i] eq 'slow'
896 || $chkcat[$i] eq 'fast' ) { # do them in that order
897 $symb = $chksymb[$i];
900 if ( defined($closurechk{$symb}) ) {
901 print OUTASM $T_HDR_closure;
902 print OUTASM $chk[$closurechk{$symb}];
903 $chkcat[$closurechk{$symb}] = 'DONE ALREADY';
907 if ( defined($infochk{$symb}) ) {
909 print OUTASM $T_HDR_info;
910 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
911 $chk[$infochk{$symb}] =~ s/\.long ([_A-Za-z]\S+_entry)/\.long \.\1/;
912 $chk[$infochk{$symb}] =~ s/\.long ([A-Za-z]\S+_upd)/\.long \.\1/;
913 $chk[$infochk{$symb}] =~ s/\.long (IndUpdRet\S+)/\.long \.\1/;
914 $chk[$infochk{$symb}] =~ s/\.long StdErrorCode/\.long \.StdErrorCode/;
915 $chk[$infochk{$symb}] =~ s/\.long UpdErr/\.long \.UpdErr/;
916 print OUTASM $chk[$infochk{$symb}];
918 print OUTASM &rev_tbl($symb, $chk[$infochk{$symb}], 1);
920 # entry code will be put here!
923 if ( $chk[$infochk{$symb}] =~ /$TDOTWORD[@]?\s+([A-Za-z0-9_]+_entry)$/o
924 && $1 ne "${T_US}${symb}_entry" ) {
925 print STDERR "!!! entry point???\n",$chk[$infochk{$symb}];
928 $chkcat[$infochk{$symb}] = 'DONE ALREADY';
932 if ( defined($slowchk{$symb}) ) {
934 # teach it to drop through to the fast entry point:
935 $c = $chk[$slowchk{$symb}];
937 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
938 ($p, $r) = split(/TOC\[tc0\], 0\n/, $c);
939 if ($symb =~ /^[_A-Z]/)
941 print OUTASM "\t\.globl \.${chksymb[$i]}_entry\n";
942 print OUTASM "\.csect ${symb}_entry[DS]\n";
943 print OUTASM "${p}TOC[tc0], 0\n";
945 $r =~ s/\.csect \.text\[PR\]\n//; # todo: properly - andre
946 $c = &mangle_powerpc_tailjump($r);
949 if ( defined($fastchk{$symb}) ) {
950 if ( $TargetPlatform =~ /^alpha-/ ) {
951 $c =~ s/^\tjmp \$31,\(\$27\),0\n\t\.align 4\n\t\.end/\t.align 4\n\t.end/;
952 } elsif ( $TargetPlatform =~ /^hppa/ ) {
953 $c =~ s/^\s+ldil.*\n\s+ldo.*\n\s+bv.*\n(.*\n)?\s+\.EXIT/$1\t.EXIT/;
954 } elsif ( $TargetPlatform =~ /^i386-/ ) {
955 $c =~ s/^\tmovl \$${T_US}${symb}_fast\d+,\%edx\n\tjmp \*\%edx\n//;
956 $c =~ s/^\tmovl \$${T_US}${symb}_fast\d+,\%eax\n\tjmp \*\%eax\n//;
957 } elsif ( $TargetPlatform =~ /^mips-/ ) {
958 $c =~ s/^\tjmp \$31,\(\$27\),0\n\t\.align 4\n\t\.end/\t.align 4\n\t.end/;
959 } elsif ( $TargetPlatform =~ /^m68k-/ ) {
960 $c =~ s/^\tjmp ${T_US}${symb}_fast\d+.*\n\tnop\n//;
961 $c =~ s/^\tjmp ${T_US}${symb}_fast\d+.*\n//;
962 } elsif ( $TargetPlatform =~ /^powerpc-|^rs6000-/ ) {
963 $c =~ s/^\tb \.${T_US}${symb}_fast\d+\n//;
964 } elsif ( $TargetPlatform =~ /^sparc-/ ) {
965 $c =~ s/^\tcall ${T_US}${symb}_fast\d+,.*\n\tnop\n//;
966 $c =~ s/^\tcall ${T_US}${symb}_fast\d+,.*\n(\t[a-z].*\n)/$1/;
968 print STDERR "$Pgm: mystery slow-fast dropthrough: $TargetPlatform\n";
972 if ( $TargetPlatform !~ /^(alpha-|hppa|mips-)/ ) {
973 # On alphas, hppa: no very good way to look for "dangling"
974 # references to fast-entry point.
975 # (questionable re hppa and mips...)
976 print STDERR "still has jump to fast entry point:\n$c"
977 if $c =~ /$TUS[@]?$symb[@]?_fast/; # NB: paranoia
980 print OUTASM $T_HDR_entry;
982 &print_doctored($c, 1); # NB: the 1!!!
984 $chkcat[$slowchk{$symb}] = 'DONE ALREADY';
988 if ( defined($fastchk{$symb}) ) {
989 $c = $chk[$fastchk{$symb}];
990 if ( ! defined($slowchk{$symb})
991 # ToDo: the || clause can go once we're no longer
992 # concerned about producing exactly the same output as before
993 #OLD: || $TargetPlatform =~ /^(m68k|sparc|i386)-/
995 print OUTASM $T_HDR_fast;
997 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
998 local(@lbls) = split(/:/, $c);
999 $fullname = $lbls[0];
1000 $fullname =~ s/$T_MOVE_DIRVS//g;
1001 if ( $fullname =~ /^[A-Z]/)
1002 { print OUTASM "\t\.globl \.${fullname}\n";
1004 print OUTASM "\t\.lglobl \.${fullname}\n"; #todo: rm - andre
1006 $c =~ s/((.*\n)*)\t.long \S+, TOC\[tc0\], 0\n\.csect \.text\[PR\]\n((.*\n)*)/\1\3/;
1007 $c = &mangle_powerpc_tailjump($c);
1009 &print_doctored($c, 0);
1010 $chkcat[$fastchk{$symb}] = 'DONE ALREADY';
1013 } elsif ( $chkcat[$i] eq 'vector'
1014 || $chkcat[$i] eq 'direct' ) { # do them in that order
1015 $symb = $chksymb[$i];
1018 if ( defined($vectorchk{$symb}) ) {
1019 print OUTASM $T_HDR_vector;
1020 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1021 if ( $symb =~ /^[A-Z]/) {
1022 print OUTASM "\t\.globl \.vtbl_${symb}\n";
1023 print OUTASM "\t\.globl vtbl_${symb}\n";
1025 $chk[$vectorchk{$symb}] =~ s/\.long (\S+)/\.long \.\1/g;
1026 print OUTASM ".vtbl_${symb}:\n";
1027 print OUTASM $chk[$vectorchk{$symb}];
1029 print OUTASM &rev_tbl($symb, $chk[$vectorchk{$symb}], 0);
1031 # direct return code will be put here!
1032 $chkcat[$vectorchk{$symb}] = 'DONE ALREADY';
1036 if ( defined($directchk{$symb}) ) {
1037 print OUTASM $T_HDR_direct;
1038 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1039 ($p, $r) = split(/TOC\[tc0\], 0\n/, $chk[$directchk{$symb}]);
1040 &print_doctored($r, 0);
1041 print OUTASM "\.csect ${symb}DirectReturn[DS]\n";
1042 print OUTASM "${p}TOC[tc0], 0\n";
1044 &print_doctored($chk[$directchk{$symb}], 0);
1046 $chkcat[$directchk{$symb}] = 'DONE ALREADY';
1048 } elsif ( $TargetPlatform =~ /^alpha-/ ) {
1049 # Alphas: the commented nop is for the splitter, to ensure
1050 # that no module ends with a label as the very last
1051 # thing. (The linker will adjust the label to point
1052 # to the first code word of the next module linked in,
1053 # even if alignment constraints cause the label to move!)
1055 print OUTASM "\t# nop\n";
1058 } elsif ( $chkcat[$i] eq 'toc' ) {
1059 # silly optimisation to print tocs, since they come in groups...
1060 print OUTASM $T_HDR_toc;
1062 while ($chkcat[$j] eq 'toc')
1063 { print OUTASM $chk[$j];
1064 $chkcat[$j] = 'DONE ALREADY';
1069 &tidy_up_and_die(1,"$Pgm: unknown chkcat (ghc-asm: $TargetPlatform)\n$chkcat[$i]\n$chk[$i]\n");
1073 print OUTASM $EXTERN_DECLS if $TargetPlatform =~ /^mips-/;
1075 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1076 print OUTASM ".csect .text[PR]\n_section_.text:\n.csect .data[RW]\n\t.long _section_.text\n"
1080 close(OUTASM) || &tidy_up_and_die(1,"Failed writing to $out_asmf\n");
1081 close(INASM) || &tidy_up_and_die(1,"Failed reading from $in_asmf\n");
1086 sub mash_hppa_prologue { # OK, epilogue, too
1089 # toss all prologue stuff
1090 s/^\s+\.ENTRY[^\0]*--- BEGIN ---/\t.ENTRY/;
1092 # Lie about our .CALLINFO
1093 s/^\s+\.CALLINFO.*$/\t.CALLINFO NO_CALLS,NO_UNWIND/;
1100 # toss all epilogue stuff
1101 s/^\s+--- END ---[^\0]*\.EXIT/\t.EXIT/;
1103 # Sorry; we moved the _info stuff to the code segment.
1104 s/_info,DATA/_info,CODE/g;
1111 sub print_doctored {
1112 local($_, $need_fallthru_patch) = @_;
1114 if ( $TargetPlatform !~ /^i386-/
1115 || ! /^\t[a-z]/ ) { # no instructions in here, apparently
1119 # OK, must do some x86 **HACKING**
1121 local($entry_patch) = '';
1122 local($exit_patch) = '';
1123 local($call_entry_patch)= '';
1124 local($call_exit_patch) = '';
1126 #OLD: # first, convert calls to *very magic form*: (ToDo: document
1130 # call _?PerformGC_wrapper
1134 # call _?PerformGC_wrapper
1136 # The reason we do this now is to remove the apparent use of
1137 # %esp, which would throw off the "what patch code do we need"
1140 # Special macros in ghc/includes/COptWraps.lh, used in
1141 # ghc/runtime/CallWrap_C.lc, are required for this to work!
1144 s/^\tpushl \$(\d+)\n\tcall ${T_DO_GC}\n\taddl \$4,\%esp\n/\tmovl \$$1,\%eax\n\tcall ${T_DO_GC}\n/go;
1145 s/^\tpushl \%eax\n\tcall ${T_DO_GC}\n\taddl \$4,\%esp\n/\tcall ${T_DO_GC}\n/go;
1146 s/^\tpushl \%edx\n\tcall ${T_DO_GC}\n\taddl \$4,\%esp\n/\tmovl \%edx,\%eax\n\tcall ${T_DO_GC}\n/go;
1148 #= if ( $StolenX86Regs <= 4 ) { # %ecx is ordinary reg
1149 #= s/^\tpushl \%ecx\n\tcall ${T_DO_GC}\n\taddl \$4,\%esp\n/\tmovl \%ecx,\%eax\n\tcall ${T_DO_GC}\n/go;
1152 # gotta watch out for weird instructions that
1153 # invisibly smash various regs:
1154 # rep* %ecx used for counting
1155 # scas* %edi used for destination index
1156 # cmps* %e[sd]i used for indices
1157 # loop* %ecx used for counting
1162 # * use of STG reg [ nn(%ebx) ] where no machine reg avail
1164 # * GCC used an "STG reg" for its own purposes
1166 # * some secret uses of machine reg, requiring STG reg
1167 # to be saved/restored
1169 # The most dangerous "GCC uses" of an "STG reg" are when
1170 # the reg holds the target of a jmp -- it's tricky to
1171 # insert the patch-up code before we get to the target!
1172 # So here we change the jmps:
1174 # --------------------------------------------------------
1175 # it can happen that we have jumps of the form...
1176 # jmp *<something involving %esp>
1178 # jmp <something involving another naughty register...>
1180 # a reasonably-common case is:
1182 # movl $_blah,<bad-reg>
1185 # which is easily fixed as:
1187 # sigh! try to hack around it...
1190 if ($StolenX86Regs <= 2 ) { # YURGH! spurious uses of esi?
1191 s/^\tmovl (.*),\%esi\n\tjmp \*%esi\n/\tmovl $1,\%eax\n\tjmp \*\%eax\n/g;
1192 s/^\tjmp \*(-?\d*)\((.*\%esi.*)\)\n/\tmovl $2,\%eax\n\tjmp \*$1\(\%eax\)\n/g;
1193 s/^\tjmp \*\%esi\n/\tmovl \%esi,\%eax\n\tjmp \*\%eax\n/g;
1194 die "$Pgm: (mangler) still have jump involving \%esi!\n$_"
1195 if /(jmp|call) .*\%esi/;
1197 if ($StolenX86Regs <= 3 ) { # spurious uses of edi?
1198 s/^\tmovl (.*),\%edi\n\tjmp \*%edi\n/\tmovl $1,\%eax\n\tjmp \*\%eax\n/g;
1199 s/^\tjmp \*(-?\d*)\((.*\%edi.*)\)\n/\tmovl $2,\%eax\n\tjmp \*$1\(\%eax\)\n/g;
1200 s/^\tjmp \*\%edi\n/\tmovl \%edi,\%eax\n\tjmp \*\%eax\n/g;
1201 die "$Pgm: (mangler) still have jump involving \%edi!\n$_"
1202 if /(jmp|call) .*\%edi/;
1204 #= if ($StolenX86Regs <= 4 ) { # spurious uses of ecx?
1205 #= s/^\tmovl (.*),\%ecx\n\tjmp \*%ecx\n/\tmovl $1,\%eax\n\tjmp \*\%eax\n/g;
1206 #= s/^\tjmp \*(-?\d*)\((.*\%ecx.*)\)\n/\tmovl $2,\%eax\n\tjmp \*$1\(\%eax\)\n/g;
1207 #= s/^\tjmp \*\%ecx\n/\tmovl \%ecx,\%eax\n\tjmp \*\%eax\n/g;
1208 #= die "$Pgm: (mangler) still have jump involving \%ecx!\n$_"
1209 #= if /(jmp|call) .*\%ecx/;
1212 # OK, now we can decide what our patch-up code is going to
1214 if ( $StolenX86Regs <= 2
1215 && ( /32\(\%ebx\)/ || /\%esi/ || /^\tcmps/ ) ) { # R1 (esi)
1216 $entry_patch .= "\tmovl \%esi,32(\%ebx)\n";
1217 $exit_patch .= "\tmovl 32(\%ebx),\%esi\n";
1218 # nothing for call_{entry,exit} because %esi is callee-save
1220 if ( $StolenX86Regs <= 3
1221 && ( /64\(\%ebx\)/ || /\%edi/ || /^\t(scas|cmps)/ ) ) { # SpA (edi)
1222 $entry_patch .= "\tmovl \%edi,64(\%ebx)\n";
1223 $exit_patch .= "\tmovl 64(\%ebx),\%edi\n";
1224 # nothing for call_{entry,exit} because %edi is callee-save
1226 #= if ( $StolenX86Regs <= 4
1227 #= && ( /80\(\%ebx\)/ || /\%ecx/ || /^\t(rep|loop)/ ) ) { # Hp (ecx)
1228 #= $entry_patch .= "\tmovl \%ecx,80(\%ebx)\n";
1229 #= $exit_patch .= "\tmovl 80(\%ebx),\%ecx\n";
1231 #= $call_exit_patch .= "\tmovl \%ecx,108(\%ebx)\n";
1232 #= $call_entry_patch .= "\tmovl 108(\%ebx),\%ecx\n";
1233 #= # I have a really bad feeling about this if we ever
1234 #= # have a nested call...
1235 #= # NB: should just hide it somewhere in the C stack.
1237 # --------------------------------------------------------
1238 # next, here we go with non-%esp patching!
1240 s/^(\t[a-z])/$entry_patch$1/; # before first instruction
1241 s/^(\tcall .*\n(\taddl \$\d+,\%esp\n)?)/$call_exit_patch$1$call_entry_patch/g; # _all_ calls
1243 # fix _all_ non-local jumps:
1245 s/^\tjmp \*${T_X86_PRE_LLBL_PAT}/\tJMP___SL/go;
1246 s/^\tjmp ${T_X86_PRE_LLBL_PAT}/\tJMP___L/go;
1248 s/^(\tjmp .*\n)/$exit_patch$1/g; # here's the fix...
1250 s/^\tJMP___SL/\tjmp \*${T_X86_PRE_LLBL}/go;
1251 s/^\tJMP___L/\tjmp ${T_X86_PRE_LLBL}/go;
1253 # fix post-PerformGC wrapper (re-)entries ???
1255 if ($StolenX86Regs == 2 ) {
1256 die "ARGH! Jump uses \%esi or \%edi with -monly-2-regs:\n$_"
1257 if /^\t(jmp|call) .*\%e(si|di)/;
1258 #= die "ARGH! Jump uses \%esi, \%edi, or \%ecx with -monly-2-regs:\n$_"
1259 #= if /^\t(jmp|call) .*\%e(si|di|cx)/;
1260 } elsif ($StolenX86Regs == 3 ) {
1261 die "ARGH! Jump uses \%edi with -monly-3-regs:\n$_"
1262 if /^\t(jmp|call) .*\%edi/;
1263 #= die "ARGH! Jump uses \%edi or \%ecx with -monly-3-regs:\n$_"
1264 #= if /^\t(jmp|call) .*\%e(di|cx)/;
1265 #= } elsif ($StolenX86Regs == 4 ) {
1266 #= die "ARGH! Jump uses \%ecx with -monly-4-regs:\n$_"
1267 #= if /^\t(jmp|call) .*\%ecx/;
1270 # final peephole fixes
1272 s/^\tmovl \%eax,36\(\%ebx\)\n\tjmp \*36\(\%ebx\)\n/\tmovl \%eax,36\(\%ebx\)\n\tjmp \*\%eax\n/;
1273 # the short form may tickle perl bug:
1274 # s/^\tmovl \$${T_US}(.*),(\%e[abcd]x)\n\tjmp \*$2/\tjmp $T_US$1/g;
1275 s/^\tmovl \$${T_US}(.*),\%eax\n\tjmp \*\%eax/\tjmp $T_US$1/g;
1276 s/^\tmovl \$${T_US}(.*),\%ebx\n\tjmp \*\%ebx/\tjmp $T_US$1/g;
1277 s/^\tmovl \$${T_US}(.*),\%ecx\n\tjmp \*\%ecx/\tjmp $T_US$1/g;
1278 s/^\tmovl \$${T_US}(.*),\%edx\n\tjmp \*\%edx/\tjmp $T_US$1/g;
1280 # Hacks to eliminate some reloads of Hp. Worth about 5% code size.
1281 # We could do much better than this, but at least it catches about
1282 # half of the unnecessary reloads.
1283 # Note that these will stop working if either:
1284 # (i) the offset of Hp from BaseReg changes from 80, or
1285 # (ii) the register assignment of BaseReg changes from %ebx
1287 s/^\tmovl 80\(\%ebx\),\%e.x\n\tmovl \$(.*),(-?[0-9]*)\(\%e.x\)\n\tmovl 80\(\%ebx\),\%e(.)x/\tmovl 80\(\%ebx\),\%e$3x\n\tmovl \$$1,$2\(\%e$3x\)/g;
1289 s/^\tmovl 80\(\%ebx\),\%e(.)x\n\tmovl (.*),\%e(.)x\n\tmovl \%e$3x,(-?[0-9]*\(\%e$1x\))\n\tmovl 80\(\%ebx\),\%e$1x/\tmovl 80\(\%ebx\),\%e$1x\n\tmovl $2,\%e$3x\n\tmovl \%e$3x,$4/g;
1291 s/^\tmovl 80\(\%ebx\),\%edx((\n\t(movl|addl) .*,((-?[0-9]*\(.*)|(\%e[abc]x)))+)\n\tmovl 80\(\%ebx\),\%edx/\tmovl 80\(\%ebx\),\%edx$1/g;
1292 s/^\tmovl 80\(\%ebx\),\%eax((\n\t(movl|addl) .*,((-?[0-9]*\(.*)|(\%e[bcd]x)))+)\n\tmovl 80\(\%ebx\),\%eax/\tmovl 80\(\%ebx\),\%eax$1/g;
1294 # --------------------------------------------------------
1295 # that's it -- print it
1297 #die "Funny jumps?\n$_" if /${T_X86_BADJMP}/o; # paranoia
1301 if ( $need_fallthru_patch ) { # exit patch for end of slow entry code
1302 print OUTASM $exit_patch;
1303 # ToDo: make it not print if there is a "jmp" at the end
1309 sub init_FUNNY_THINGS {
1310 %KNOWN_FUNNY_THING = (
1311 "${T_US}CheckHeapCode${T_POST_LBL}", 1,
1312 "${T_US}CommonUnderflow${T_POST_LBL}", 1,
1313 "${T_US}Continue${T_POST_LBL}", 1,
1314 "${T_US}EnterNodeCode${T_POST_LBL}", 1,
1315 "${T_US}ErrorIO_call_count${T_POST_LBL}", 1,
1316 "${T_US}ErrorIO_innards${T_POST_LBL}", 1,
1317 "${T_US}IndUpdRetDir${T_POST_LBL}", 1,
1318 "${T_US}IndUpdRetV0${T_POST_LBL}", 1,
1319 "${T_US}IndUpdRetV1${T_POST_LBL}", 1,
1320 "${T_US}IndUpdRetV2${T_POST_LBL}", 1,
1321 "${T_US}IndUpdRetV3${T_POST_LBL}", 1,
1322 "${T_US}IndUpdRetV4${T_POST_LBL}", 1,
1323 "${T_US}IndUpdRetV5${T_POST_LBL}", 1,
1324 "${T_US}IndUpdRetV6${T_POST_LBL}", 1,
1325 "${T_US}IndUpdRetV7${T_POST_LBL}", 1,
1326 "${T_US}PrimUnderflow${T_POST_LBL}", 1,
1327 "${T_US}StackUnderflowEnterNode${T_POST_LBL}", 1,
1328 "${T_US}StdErrorCode${T_POST_LBL}", 1,
1329 "${T_US}UnderflowVect0${T_POST_LBL}", 1,
1330 "${T_US}UnderflowVect1${T_POST_LBL}", 1,
1331 "${T_US}UnderflowVect2${T_POST_LBL}", 1,
1332 "${T_US}UnderflowVect3${T_POST_LBL}", 1,
1333 "${T_US}UnderflowVect4${T_POST_LBL}", 1,
1334 "${T_US}UnderflowVect5${T_POST_LBL}", 1,
1335 "${T_US}UnderflowVect6${T_POST_LBL}", 1,
1336 "${T_US}UnderflowVect7${T_POST_LBL}", 1,
1337 "${T_US}UpdErr${T_POST_LBL}", 1,
1338 "${T_US}UpdatePAP${T_POST_LBL}", 1,
1339 "${T_US}WorldStateToken${T_POST_LBL}", 1,
1340 "${T_US}_Enter_Internal${T_POST_LBL}", 1,
1341 "${T_US}_PRMarking_MarkNextAStack${T_POST_LBL}", 1,
1342 "${T_US}_PRMarking_MarkNextBStack${T_POST_LBL}", 1,
1343 "${T_US}_PRMarking_MarkNextCAF${T_POST_LBL}", 1,
1344 "${T_US}_PRMarking_MarkNextGA${T_POST_LBL}", 1,
1345 "${T_US}_PRMarking_MarkNextRoot${T_POST_LBL}", 1,
1346 "${T_US}_PRMarking_MarkNextSpark${T_POST_LBL}", 1,
1347 "${T_US}_PRMarking_MarkNextEvent${T_POST_LBL}", 1,
1348 "${T_US}_PRMarking_MarkNextClosureInFetchBuffer${T_POST_LBL}", 1,
1349 "${T_US}_Scavenge_Forward_Ref${T_POST_LBL}", 1,
1350 "${T_US}__std_entry_error__${T_POST_LBL}", 1,
1351 "${T_US}_startMarkWorld${T_POST_LBL}", 1,
1352 "${T_US}resumeThread${T_POST_LBL}", 1,
1353 "${T_US}startCcRegisteringWorld${T_POST_LBL}", 1,
1354 "${T_US}startEnterFloat${T_POST_LBL}", 1,
1355 "${T_US}startEnterInt${T_POST_LBL}", 1,
1356 "${T_US}startPerformIO${T_POST_LBL}", 1,
1357 "${T_US}startStgWorld${T_POST_LBL}", 1,
1358 "${T_US}stopPerformIO${T_POST_LBL}", 1
1363 The following table reversal is used for both info tables and return
1364 vectors. In both cases, we remove the first entry from the table,
1365 reverse the table, put the label at the end, and paste some code
1366 (that which is normally referred to by the first entry in the table)
1367 right after the table itself. (The code pasting is done elsewhere.)
1371 local($symb, $tbl, $discard1) = @_;
1373 local($before) = '';
1375 local(@imports) = (); # hppa only
1378 local(@lines) = split(/\n/, $tbl);
1379 local($i, $j); #local ($i, $extra, $words_to_pad, $j);
1381 # see comment in mangleAsm as to why this silliness is needed.
1382 local($TDOTWORD) = ${T_DOT_WORD};
1383 local($TDOTGLOBAL) = ${T_DOT_GLOBAL};
1384 local($TUS) = ${T_US};
1385 local($TPOSTLBL) = ${T_POST_LBL};
1387 for ($i = 0; $i <= $#lines && $lines[$i] !~ /^\t$TDOTWORD\s+/o; $i++) {
1388 $label .= $lines[$i] . "\n",
1389 next if $lines[$i] =~ /^[A-Za-z0-9_]+_info$TPOSTLBL[@]?$/o
1390 || $lines[$i] =~ /$TDOTGLOBAL/o
1391 || $lines[$i] =~ /^$TUS[@]?vtbl_\S+$TPOSTLBL[@]?$/o;
1393 $before .= $lines[$i] . "\n"; # otherwise...
1396 if ( $TargetPlatform !~ /^hppa/ ) {
1397 for ( ; $i <= $#lines && $lines[$i] =~ /^\t$TDOTWORD\s+/o; $i++) {
1398 push(@words, $lines[$i]);
1400 } else { # hppa weirdness
1401 for ( ; $i <= $#lines && $lines[$i] =~ /^\s+\.(word|IMPORT)/; $i++) {
1402 if ($lines[$i] =~ /^\s+\.IMPORT/) {
1403 push(@imports, $lines[$i]);
1405 # We don't use HP's ``function pointers''
1406 # We just use labels in code space, like normal people
1407 $lines[$i] =~ s/P%//;
1408 push(@words, $lines[$i]);
1413 # now throw away the first word (entry code):
1414 shift(@words) if $discard1;
1416 # Padding removed to reduce code size and improve performance on Pentiums.
1418 # for 486-cache-friendliness, we want our tables aligned
1419 # on 16-byte boundaries (.align 4). Let's pad:
1420 # $extra = ($#words + 1) % 4;
1421 # $words_to_pad = ($extra == 0) ? 0 : 4 - $extra;
1422 # for ($j = 0; $j < $words_to_pad; $j++) { push(@words, "\t${T_DOT_WORD} 0"); }
1424 for (; $i <= $#lines; $i++) {
1425 $after .= $lines[$i] . "\n";
1428 # Alphas:If we have anonymous text (not part of a procedure), the
1429 # linker may complain about missing exception information. Bleh.
1430 if ( $TargetPlatform =~ /^alpha-/ && $label =~ /^([A-Za-z0-9_]+):$/) {
1431 $before = "\t.ent $1\n" . $before;
1432 $after .= "\t.end $1\n";
1436 . (($TargetPlatform !~ /^hppa/) ? '' : join("\n", @imports) . "\n")
1437 . join("\n", (reverse @words)) . "\n"
1440 # print STDERR "before=$before\n";
1441 # print STDERR "label=$label\n";
1442 # print STDERR "words=",(reverse @words),"\n";
1443 # print STDERR "after=$after\n";
1450 sub mini_mangle_asm_i386 {
1451 local($in_asmf, $out_asmf) = @_;
1453 &init_TARGET_STUFF();
1455 # see mangleAsm comment
1456 local($TUS) = ${T_US};
1457 local($TPOSTLBL)=${T_POST_LBL};
1459 open(INASM, "< $in_asmf")
1460 || &tidy_up_and_die(1,"$Pgm: failed to open `$in_asmf' (to read)\n");
1461 open(OUTASM,"> $out_asmf")
1462 || &tidy_up_and_die(1,"$Pgm: failed to open `$out_asmf' (to write)\n");
1468 /^$TUS[@]?(PerformGC|StackOverflow|Yield|PerformReschedule)_wrapper$TPOSTLBL\n/o;
1469 print OUTASM "\tmovl \%esp, ${T_US}__temp_esp\n";
1470 print OUTASM "\tmovl \%eax, ${T_US}__temp_eax\n";
1474 close(OUTASM) || &tidy_up_and_die(1,"Failed writing to $out_asmf\n");
1475 close(INASM) || &tidy_up_and_die(1,"Failed reading from $in_asmf\n");
1479 The HP is a major nuisance. The threaded code mangler moved info
1480 tables from data space to code space, but unthreaded code in the RTS
1481 still has references to info tables in data space. Since the HP
1482 linker is very precise about where symbols live, we need to patch the
1483 references in the unthreaded RTS as well.
1486 sub mini_mangle_asm_hppa {
1487 local($in_asmf, $out_asmf) = @_;
1489 open(INASM, "< $in_asmf")
1490 || &tidy_up_and_die(1,"$Pgm: failed to open `$in_asmf' (to read)\n");
1491 open(OUTASM,"> $out_asmf")
1492 || &tidy_up_and_die(1,"$Pgm: failed to open `$out_asmf' (to write)\n");
1495 s/_info,DATA/_info,CODE/; # Move _info references to code space
1501 close(OUTASM) || &tidy_up_and_die(1,"Failed writing to $out_asmf\n");
1502 close(INASM) || &tidy_up_and_die(1,"Failed reading from $in_asmf\n");
1508 sub mini_mangle_asm_powerpc {
1509 local($in_asmf, $out_asmf) = @_;
1511 open(INASM, "< $in_asmf")
1512 || &tidy_up_and_die(1,"$Pgm: failed to open `$in_asmf' (to read)\n");
1513 open(OUTASM,"> $out_asmf")
1514 || &tidy_up_and_die(1,"$Pgm: failed to open `$out_asmf' (to write)\n");
1517 s/long _PRStart/long ._PRStart/;
1518 s/long _PRIn_/long ._PRIn_/;
1519 s/long _Dummy_(\S+)_entry/long ._Dummy_\1_entry/;
1520 s/long _PRMarking_MarkNextRoot\[DS\]/long ._PRMarking_MarkNextRoot/;
1521 s/long _PRMarking_MarkNextCAF\[DS\]/long ._PRMarking_MarkNextCAF/;
1522 s/long _PRMarking_MarkNextAStack\[DS\]/long ._PRMarking_MarkNextAStack/;
1523 s/long _PRMarking_MarkNextBStack\[DS\]/long ._PRMarking_MarkNextBStack/;
1528 close(OUTASM) || &tidy_up_and_die(1,"Failed writing to $out_asmf\n");
1529 close(INASM) || &tidy_up_and_die(1,"Failed reading from $in_asmf\n");
1532 sub mangle_powerpc_tailjump {
1534 local($maybe_more) = 1;
1535 while (($c =~ /\tlw?z? \d+,LC\.\.\d+\(2\)\n\tmtctr \d+\n\tbctr\n/) && $maybe_more)
1538 $lcsymb =~ s/(.*\n)*\tlw?z? \d+,LC\.\.(\d+)\(2\)\n\tmtctr \d+\n\tbctr\n(.*\n)*/\2/;
1539 # the checks for r1 and r2 are mostly paranoia...
1541 $r1 =~ s/(.*\n)*\tlw?z? (\d+),LC\.\.\d+\(2\)\n\tmtctr \d+\n\tbctr\n(.*\n)*/\2/;
1543 $r2 =~ s/(.*\n)*\tlw?z? \d+,LC\.\.(\d+)\(2\)\n\tmtctr (\d+)\n\tbctr\n(.*\n)*/\3/;
1546 $c =~ s/((.*\n)*)\tlw?z? \d+,LC\.\.\d+\(2\)\n\tmtctr \d+\n\tbctr\n((.*\n)*)/\1\tb $tocequiv{$lcsymb}\n\3/;
1552 # make "require"r happy...