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.
16 General note [chak]: Many regexps are very fragile because they rely on white
17 space being in the right place. This caused trouble with gcc 2.95 (at least
18 on Linux), where the use of white space in .s files generated by gcc suddenly
19 changed. To guarantee compatibility across different versions of gcc, make
20 sure (at least on i386-.*-linux) that regexps tolerate varying amounts of white
21 space between an assembler statement and its arguments as well as after a the
22 comma separating multiple arguments.
24 \emph{For the time being, I have corrected the regexps for i386-.*-linux. I
25 didn't touch all the regexps for other i386 platforms, as I don't have
26 a box to test these changes.}
31 The HP linker is very picky about symbols being in the appropriate
32 space (code vs. data). When we mangle the threaded code to put the
33 info tables just prior to the code, they wind up in code space
34 rather than data space. This means that references to *_info from
35 un-mangled parts of the RTS (e.g. unthreaded GC code) get
36 unresolved symbols. Solution: mini-mangler for .c files on HP. I
37 think this should really be triggered in the driver by a new -rts
38 option, so that user code doesn't get mangled inappropriately.
40 With reversed tables, jumps are to the _info label rather than to
41 the _entry label. The _info label is just an address in code
42 space, rather than an entry point with the descriptive blob we
43 talked about yesterday. As a result, you can't use the call-style
44 JMP_ macro. However, some JMP_ macros take _info labels as targets
45 and some take code entry points within the RTS. The latter won't
46 work with the goto-style JMP_ macro. Sigh. Solution: Use the goto
47 style JMP_ macro, and mangle some more assembly, changing all
48 "RP'literal" and "LP'literal" references to "R'literal" and
49 "L'literal," so that you get the real address of the code, rather
50 than the descriptive blob. Also change all ".word P%literal"
51 entries in info tables and vector tables to just ".word literal,"
52 for the same reason. Advantage: No more ridiculous call sequences.
55 %************************************************************************
57 \subsection{Top-level code}
59 %************************************************************************
62 $TargetPlatform = $TARGETPLATFORM;
64 ($Pgm = $0) =~ s|.*/||;
68 if ( $TargetPlatform =~ /^i386-/ ) {
72 $StolenX86Regs = $ARGV[2];
76 &mangle_asm($ifile,$ofile);
81 %************************************************************************
83 \subsection{Constants for various architectures}
85 %************************************************************************
88 sub init_TARGET_STUFF {
90 #--------------------------------------------------------#
91 if ( $TargetPlatform =~ /^alpha-.*-.*/ ) {
93 $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
94 $T_US = ''; # _ if symbols have an underscore on the front
95 $T_PRE_APP = 'DONT THINK THIS APPLIES'; # regexp that says what comes before APP/NO_APP
96 $T_CONST_LBL = '^\$L?C(\d+):$'; # regexp for what such a lbl looks like
99 $T_MOVE_DIRVS = '^(\s*(\.align\s+\d+|\.(globl|ent)\s+\S+|\#.*|\.(file|loc)\s+\S+\s+\S+|\.text|\.r?data)\n)';
100 $T_COPY_DIRVS = '^\s*(\#|\.(file|globl|ent|loc))';
102 $T_hsc_cc_PAT = '\.ascii.*\)(hsc|cc) (.*)\\\\11"\n\t\.ascii\s+"(.*)\\\\0"';
103 $T_DOT_WORD = '\.(long|quad|byte|word)';
104 $T_DOT_GLOBAL = '^\t\.globl';
105 $T_HDR_literal = "\.rdata\n\t\.align 3\n";
106 $T_HDR_misc = "\.text\n\t\.align 3\n";
107 $T_HDR_data = "\.data\n\t\.align 3\n";
108 $T_HDR_consist = "\.text\n";
109 $T_HDR_closure = "\.data\n\t\.align 3\n";
110 $T_HDR_srt = "\.text\n\t\.align 3\n";
111 $T_HDR_info = "\.text\n\t\.align 3\n";
112 $T_HDR_entry = "\.text\n\t\.align 3\n";
113 $T_HDR_fast = "\.text\n\t\.align 3\n";
114 $T_HDR_vector = "\.text\n\t\.align 3\n";
115 $T_HDR_direct = "\.text\n\t\.align 3\n";
116 $T_create_word = "\t.quad";
118 #--------------------------------------------------------#
119 } elsif ( $TargetPlatform =~ /^hppa/ ) {
121 $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
122 $T_US = ''; # _ if symbols have an underscore on the front
123 $T_PRE_APP = 'DONT THINK THIS APPLIES'; # regexp that says what comes before APP/NO_APP
124 $T_CONST_LBL = '^L\$C(\d+)$'; # regexp for what such a lbl looks like
127 $T_MOVE_DIRVS = '^((\s+\.(IMPORT|EXPORT|PARAM).*|\s+\.align\s+\d+|\s+\.(SPACE|SUBSPA)\s+\S+|\s*)\n)';
128 $T_COPY_DIRVS = '^\s+\.(IMPORT|EXPORT)';
130 $T_hsc_cc_PAT = '\.STRING.*\)(hsc|cc) (.*)\\\\x09(.*)\\\\x00"';
131 $T_DOT_WORD = '\.(blockz|word|half|byte)';
132 $T_DOT_GLOBAL = '^\s+\.EXPORT';
133 $T_HDR_literal = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$LIT\$\n";
134 $T_HDR_misc = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$CODE\$\n\t\.align 4\n";
135 $T_HDR_data = "\t.SPACE \$PRIVATE\$\n\t.SUBSPA \$DATA\$\n\t\.align 4\n";
136 $T_HDR_consist = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$LIT\$\n";
137 $T_HDR_closure = "\t.SPACE \$PRIVATE\$\n\t.SUBSPA \$DATA\$\n\t\.align 4\n";
138 $T_HDR_srt = "\t.SPACE \$PRIVATE\$\n\t.SUBSPA \$DATA\$\n\t\.align 4\n";
139 $T_HDR_info = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$CODE\$\n\t\.align 4\n";
140 $T_HDR_entry = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$CODE\$\n\t\.align 4\n";
141 $T_HDR_fast = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$CODE\$\n\t\.align 4\n";
142 $T_HDR_vector = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$CODE\$\n\t\.align 4\n";
143 $T_HDR_direct = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$CODE\$\n\t\.align 4\n";
144 $T_create_word = "\t.word";
146 #--------------------------------------------------------#
147 } elsif ( $TargetPlatform =~ /^i386-.*-(linuxaout|freebsd2|openbsd|nextstep3|cygwin32|mingw32)$/ ) {
148 # NeXT added but not tested. CaS
150 $T_STABBY = 1; # 1 iff .stab things (usually if a.out format)
151 $T_US = '_'; # _ if symbols have an underscore on the front
152 $T_PRE_APP = '^#'; # regexp that says what comes before APP/NO_APP
153 $T_CONST_LBL = '^LC(\d+):$';
155 $T_X86_PRE_LLBL_PAT = 'L';
156 $T_X86_PRE_LLBL = 'L';
157 $T_X86_BADJMP = '^\tjmp [^L\*]';
159 $T_MOVE_DIRVS = '^(\s*(\.(p2)?align\s+\d+(,0x90)?|\.globl\s+\S+|\.text|\.data|\.stab[^n].*|\.type\s+.*|\.size\s+.*)\n)';
160 $T_COPY_DIRVS = '\.(globl|stab)';
161 $T_hsc_cc_PAT = '\.ascii.*\)(hsc|cc) (.*)\\\\11"\n\t\.ascii\s+"(.*)\\\\0"';
162 $T_DOT_WORD = '\.(long|word|value|byte|space)';
163 $T_DOT_GLOBAL = '\.globl';
164 $T_HDR_literal = "\.text\n\t\.align 2\n";
165 $T_HDR_misc = "\.text\n\t\.align 2,0x90\n";
166 $T_HDR_data = "\.data\n\t\.align 2\n";
167 $T_HDR_consist = "\.text\n";
168 $T_HDR_closure = "\.data\n\t\.align 2\n";
169 $T_HDR_closure = "\.data\n\t\.align 2\n\t.long 0\n" if ( $TargetPlatform =~ /.*-mingw32$/ );
170 $T_HDR_srt = "\.text\n\t\.align 2\n";
171 $T_HDR_info = "\.text\n\t\.align 2\n"; # NB: requires padding
172 $T_HDR_entry = "\.text\n"; # no .align so we're right next to _info (arguably wrong...?)
173 $T_HDR_fast = "\.text\n\t\.align 2,0x90\n";
174 $T_HDR_vector = "\.text\n\t\.align 2\n"; # NB: requires padding
175 $T_HDR_direct = "\.text\n\t\.align 2,0x90\n";
176 $T_create_word = "\t.word";
178 #--------------------------------------------------------#
179 } elsif ( $TargetPlatform =~ /^i386-.*-(solaris2|linux|freebsd|netbsd)$/ ) {
181 $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
182 $T_US = ''; # _ if symbols have an underscore on the front
183 $T_PRE_APP = # regexp that says what comes before APP/NO_APP
184 ($TargetPlatform =~ /-(linux|freebsd|netbsd)$/) ? '#' : '/' ;
185 $T_CONST_LBL = '^\.LC(\d+):$'; # regexp for what such a lbl looks like
187 $T_X86_PRE_LLBL_PAT = '\.L';
188 $T_X86_PRE_LLBL = '.L';
189 $T_X86_BADJMP = '^\tjmp\s+[^\.\*]';
191 $T_MOVE_DIRVS = '^(\s*(\.(p2)?align\s+\d+(,\s*0x90)?|\.globl\s+\S+|\.text|\.data|\.section\s+.*|\.type\s+.*|\.Lfe.*\n\s*\.size\s+.*|\.size\s+.*|\.ident.*)\n)';
192 $T_COPY_DIRVS = '\.(globl)';
194 if ( $TargetPlatform =~ /freebsd|netbsd/ ) {
195 $T_hsc_cc_PAT = '\.ascii.*\)(hsc|cc) (.*)\\\\11"\n\t\.ascii\s+"(.*)\\\\0"';
197 $T_hsc_cc_PAT = '\.string.*\)(hsc|cc) (.*)\\\\t(.*)"';
200 $T_DOT_WORD = '\.(long|value|byte|zero)';
201 $T_DOT_GLOBAL = '\.globl';
202 $T_HDR_literal = "\.section\t\.rodata\n"; # or just use .text??? (WDP 95/11)
203 $T_HDR_misc = "\.text\n\t\.align 4\n";
204 $T_HDR_data = "\.data\n\t\.align 4\n"; # ToDo: change align??
205 $T_HDR_consist = "\.text\n";
206 $T_HDR_closure = "\.data\n\t\.align 4\n"; # ToDo: change align?
207 $T_HDR_srt = "\.text\n\t\.align 4\n"; # ToDo: change align?
208 $T_HDR_info = "\.text\n\t\.align 4\n"; # NB: requires padding
209 $T_HDR_entry = "\.text\n"; # no .align so we're right next to _info (arguably wrong...?)
210 $T_HDR_fast = "\.text\n\t\.align 4\n";
211 $T_HDR_vector = "\.text\n\t\.align 4\n"; # NB: requires padding
212 $T_HDR_direct = "\.text\n\t\.align 4\n";
213 $T_create_word = "\t.word";
215 #--------------------------------------------------------#
216 } elsif ( $TargetPlatform =~ /^m68k-.*-sunos4/ ) {
218 $T_STABBY = 1; # 1 iff .stab things (usually if a.out format)
219 $T_US = '_'; # _ if symbols have an underscore on the front
220 $T_PRE_APP = '^# MAY NOT APPLY'; # regexp that says what comes before APP/NO_APP
221 $T_CONST_LBL = '^LC(\d+):$';
224 $T_MOVE_DIRVS = '^(\s*(\.align\s+\d+|\.proc\s+\d+|\.const|\.cstring|\.globl\s+\S+|\.text|\.data|\.even|\.stab[^n].*)\n)';
225 $T_COPY_DIRVS = '\.(globl|proc|stab)';
226 $T_hsc_cc_PAT = '\.ascii.*\)(hsc|cc) (.*)\\\\11"\n\t\.ascii\s+"(.*)\\\\0"';
228 $T_DOT_WORD = '\.long';
229 $T_DOT_GLOBAL = '\.globl';
230 $T_HDR_literal = "\.text\n\t\.even\n";
231 $T_HDR_misc = "\.text\n\t\.even\n";
232 $T_HDR_data = "\.data\n\t\.even\n";
233 $T_HDR_consist = "\.text\n";
234 $T_HDR_closure = "\.data\n\t\.even\n";
235 $T_HDR_srt = "\.text\n\t\.even\n";
236 $T_HDR_info = "\.text\n\t\.even\n";
237 $T_HDR_entry = "\.text\n\t\.even\n";
238 $T_HDR_fast = "\.text\n\t\.even\n";
239 $T_HDR_vector = "\.text\n\t\.even\n";
240 $T_HDR_direct = "\.text\n\t\.even\n";
241 $T_create_word = "\t.long";
243 #--------------------------------------------------------#
244 } elsif ( $TargetPlatform =~ /^mips-.*/ ) {
246 $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
247 $T_US = ''; # _ if symbols have an underscore on the front
248 $T_PRE_APP = '^\s*#'; # regexp that says what comes before APP/NO_APP
249 $T_CONST_LBL = '^\$LC(\d+):$'; # regexp for what such a lbl looks like
252 $T_MOVE_DIRVS = '^(\s*(\.align\s+\d+|\.(globl|ent)\s+\S+|\.text|\.r?data)\n)';
253 $T_COPY_DIRVS = '\.(globl|ent)';
255 $T_hsc_cc_PAT = 'I WAS TOO LAZY TO DO THIS BIT (WDP 95/05)';
256 $T_DOT_WORD = '\.word';
257 $T_DOT_GLOBAL = '^\t\.globl';
258 $T_HDR_literal = "\t\.rdata\n\t\.align 2\n";
259 $T_HDR_misc = "\t\.text\n\t\.align 2\n";
260 $T_HDR_data = "\t\.data\n\t\.align 2\n";
261 $T_HDR_consist = 'TOO LAZY TO DO THIS TOO';
262 $T_HDR_closure = "\t\.data\n\t\.align 2\n";
263 $T_HDR_srt = "\t\.text\n\t\.align 2\n";
264 $T_HDR_info = "\t\.text\n\t\.align 2\n";
265 $T_HDR_entry = "\t\.text\n\t\.align 2\n";
266 $T_HDR_fast = "\t\.text\n\t\.align 2\n";
267 $T_HDR_vector = "\t\.text\n\t\.align 2\n";
268 $T_HDR_direct = "\t\.text\n\t\.align 2\n";
269 $T_create_word = "\t.word";
271 #--------------------------------------------------------#
272 } elsif ( $TargetPlatform =~ /^powerpc-.*|^rs6000-.*/ ) {
274 $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
275 $T_US = ''; # _ if symbols have an underscore on the front
276 $T_PRE_APP = 'NOT APPLICABLE'; # regexp that says what comes before APP/NO_APP
277 $T_CONST_LBL = 'NOT APPLICABLE'; # regexp for what such a lbl looks like
280 $T_MOVE_DIRVS = '^(\s*(\.toc|\.align \d+|\.csect \S+|\t\.?l?globl \S+)\n)';
281 $T_COPY_DIRVS = '\.(l?globl)';
283 $T_hsc_cc_PAT = '\.byte.*\)(hsc|cc) (.*)"\n\t\.byte \d+\n\t\.byte "(.*)"\n\t\.byte \d+';
284 $T_DOT_WORD = '\.long';
285 $T_DOT_GLOBAL = '\.globl';
286 $T_HDR_toc = "\.toc\n";
287 $T_HDR_literal = "\.csect .data[RW]\n\t\.align 2\n"; #not RO!?
288 $T_HDR_misc = "# misc\n\.csect \.text[PR]\n\t\.align 2\n";
289 $T_HDR_data = "# data\n\.csect \.data[RW]\n\t\.align 2\n";
290 $T_HDR_consist = "# consist\n\.csect \.data[RW]\n\t\.align 2\n";
291 $T_HDR_closure = "# closure\n\.csect \.data[RW]\n\t\.align 2\n";
292 $T_HDR_srt = "# closure\n\.csect \.data[RW]\n\t\.align 2\n";
293 $T_HDR_info = "# info\n\.csect \.data[RW]\n\t\.align 2\n"; #not RO!?
294 $T_HDR_entry = "# entry\n\.csect \.text[PR]\n\t\.align 2\n";
295 $T_HDR_fast = "# fast\n\.csect \.text[PR]\n\t\.align 2\n";
296 $T_HDR_vector = "# vector\n\.csect \.data[RW]\n\t\.align 2\n"; #not RO!?
297 $T_HDR_direct = "# direct\n";
298 $T_create_word = "\t.long";
300 #--------------------------------------------------------#
301 } elsif ( $TargetPlatform =~ /^sparc-.*-solaris2/ ) {
303 $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
304 $T_US = ''; # _ if symbols have an underscore on the front
305 $T_PRE_APP = 'DOES NOT SEEM TO APPLY'; # regexp that says what comes before APP/NO_APP
306 $T_CONST_LBL = '^\.LLC(\d+):$'; # regexp for what such a lbl looks like
309 $T_MOVE_DIRVS = '^((\s+\.align\s+\d+|\s+\.proc\s+\d+|\s+\.global\s+\S+|\.text|\.data|\.stab.*|\.section.*|\s+\.type.*|\s+\.size.*)\n)';
310 $T_COPY_DIRVS = '\.(global|proc|stab)';
312 $T_hsc_cc_PAT = '\.asciz.*\)(hsc|cc) (.*)\\\\t(.*)"';
313 $T_DOT_WORD = '\.(word|byte|half|skip|uahalf|uaword)';
314 $T_DOT_GLOBAL = '^\t\.global';
315 $T_HDR_literal = "\.text\n\t\.align 8\n";
316 $T_HDR_misc = "\.text\n\t\.align 4\n";
317 $T_HDR_data = "\.data\n\t\.align 8\n";
318 $T_HDR_consist = "\.text\n";
319 $T_HDR_closure = "\.data\n\t\.align 4\n";
320 $T_HDR_srt = "\.data\n\t\.align 4\n";
321 $T_HDR_info = "\.text\n\t\.align 4\n";
322 $T_HDR_entry = "\.text\n\t\.align 4\n";
323 $T_HDR_fast = "\.text\n\t\.align 4\n";
324 $T_HDR_vector = "\.text\n\t\.align 4\n";
325 $T_HDR_direct = "\.text\n\t\.align 4\n";
326 $T_create_word = "\t.word";
328 #--------------------------------------------------------#
329 } elsif ( $TargetPlatform =~ /^sparc-.*-sunos4/ ) {
331 $T_STABBY = 1; # 1 iff .stab things (usually if a.out format)
332 $T_US = '_'; # _ if symbols have an underscore on the front
333 $T_PRE_APP = '^# DOES NOT SEEM TO APPLY'; # regexp that says what comes before APP/NO_APP
334 $T_CONST_LBL = '^LC(\d+):$';
337 $T_MOVE_DIRVS = '^((\s+\.align\s+\d+|\s+\.proc\s+\d+|\s+\.global\s+\S+|\.text|\.data|\.stab.*)\n)';
338 $T_COPY_DIRVS = '\.(global|proc|stab)';
339 $T_hsc_cc_PAT = '\.ascii.*\)(hsc|cc) (.*)\\\\11"\n\t\.ascii\s+"(.*)\\\\0"';
341 $T_DOT_WORD = '\.word';
342 $T_DOT_GLOBAL = '^\t\.global';
343 $T_HDR_literal = "\.text\n\t\.align 8\n";
344 $T_HDR_misc = "\.text\n\t\.align 4\n";
345 $T_HDR_data = "\.data\n\t\.align 8\n";
346 $T_HDR_consist = "\.text\n";
347 $T_HDR_closure = "\.data\n\t\.align 4\n";
348 $T_HDR_srt = "\.data\n\t\.align 4\n";
349 $T_HDR_info = "\.text\n\t\.align 4\n";
350 $T_HDR_entry = "\.text\n\t\.align 4\n";
351 $T_HDR_fast = "\.text\n\t\.align 4\n";
352 $T_HDR_vector = "\.text\n\t\.align 4\n";
353 $T_HDR_direct = "\.text\n\t\.align 4\n";
354 $T_create_word = "\t.word";
356 #--------------------------------------------------------#
358 print STDERR "$Pgm: don't know how to mangle assembly language for: $TargetPlatform\n";
363 print STDERR "T_STABBY: $T_STABBY\n";
364 print STDERR "T_US: $T_US\n";
365 print STDERR "T_PRE_APP: $T_PRE_APP\n";
366 print STDERR "T_CONST_LBL: $T_CONST_LBL\n";
367 print STDERR "T_POST_LBL: $T_POST_LBL\n";
368 if ( $TargetPlatform =~ /^i386-/ ) {
369 print STDERR "T_X86_PRE_LLBL_PAT: $T_X86_PRE_LLBL_PAT\n";
370 print STDERR "T_X86_PRE_LLBL: $T_X86_PRE_LLBL\n";
371 print STDERR "T_X86_BADJMP: $T_X86_BADJMP\n";
373 print STDERR "T_MOVE_DIRVS: $T_MOVE_DIRVS\n";
374 print STDERR "T_COPY_DIRVS: $T_COPY_DIRVS\n";
375 print STDERR "T_hsc_cc_PAT: $T_hsc_cc_PAT\n";
376 print STDERR "T_DOT_WORD: $T_DOT_WORD\n";
377 print STDERR "T_HDR_literal: $T_HDR_literal\n";
378 print STDERR "T_HDR_misc: $T_HDR_misc\n";
379 print STDERR "T_HDR_data: $T_HDR_data\n";
380 print STDERR "T_HDR_consist: $T_HDR_consist\n";
381 print STDERR "T_HDR_closure: $T_HDR_closure\n";
382 print STDERR "T_HDR_info: $T_HDR_info\n";
383 print STDERR "T_HDR_entry: $T_HDR_entry\n";
384 print STDERR "T_HDR_fast: $T_HDR_fast\n";
385 print STDERR "T_HDR_vector: $T_HDR_vector\n";
386 print STDERR "T_HDR_direct: $T_HDR_direct\n";
392 %************************************************************************
394 \subsection{Mangle away}
396 %************************************************************************
400 local($in_asmf, $out_asmf) = @_;
402 # multi-line regexp matching:
407 &init_TARGET_STUFF();
408 &init_FUNNY_THINGS();
410 open(INASM, "< $in_asmf")
411 || &tidy_up_and_die(1,"$Pgm: failed to open `$in_asmf' (to read)\n");
412 open(OUTASM,"> $out_asmf")
413 || &tidy_up_and_die(1,"$Pgm: failed to open `$out_asmf' (to write)\n");
415 # read whole file, divide into "chunks":
416 # record some info about what we've found...
418 @chk = (); # contents of the chunk
419 $numchks = 0; # number of them
420 @chkcat = (); # what category of thing in each chunk
421 @chksymb = (); # what symbol(base) is defined in this chunk
422 %slowchk = (); # ditto, its regular "slow" entry code
423 %fastchk = (); # ditto, fast entry code
424 %closurechk = (); # ditto, the (static) closure
425 %srtchk = (); # ditto, its SRT (for top-level things)
426 %infochk = (); # given a symbol base, say what chunk its info tbl is in
427 %vectorchk = (); # ditto, return vector table
428 $EXTERN_DECLS = ''; # .globl <foo> .text (MIPS only)
430 $i = 0; $chkcat[0] = 'misc'; $chk[0] = '';
433 tr/\r//d if $TargetPlatform =~ /-mingw32$/; # In case Perl doesn't convert line endings
434 next if $T_STABBY && /^\.stab.*${T_US}__stg_split_marker/o;
435 next if $T_STABBY && /^\.stab.*ghc.*c_ID/;
436 next if /^\t\.def.*endef$/;
437 next if /${T_PRE_APP}(NO_)?APP/o;
438 next if /^;/ && $TargetPlatform =~ /^hppa/;
440 next if /(^$|^\t\.file\t|^ # )/ && $TargetPlatform =~ /^(mips|powerpc|rs6000)-/;
442 last if /^_section_\.text:$/ && $TargetPlatform =~ /^powerpc-|^rs6000-/;
444 if ( $TargetPlatform =~ /^mips-/
445 && /^\t\.(globl\S+\.text|comm\t)/ ) {
446 $EXTERN_DECLS .= $_ unless /(__DISCARD__|\b(PK_|ASSIGN_)(FLT|DBL)\b)/;
448 # As a temporary solution for compiling "foreign export" declarations,
449 # we use global variables to pass arguments from C to STG land.
450 # These declarations live in the .hc file and not in the generated C
451 # stub file, so we let them pass through here.
452 } elsif ( /^\t\.comm\t__fexp_.*$/ ) {
454 $chkcat[$i] = 'data';
457 } elsif ( /^\s+/ ) { # most common case first -- a simple line!
458 # duplicated from the bottom
462 } elsif ( /\.\.ng:$/ && $TargetPlatform =~ /^alpha-/ ) {
463 # Alphas: Local labels not to be confused with new chunks
466 # NB: all the rest start with a non-space
468 } elsif ( $TargetPlatform =~ /^mips-/
469 && /^\d+:/ ) { # a funny-looking very-local label
472 } elsif ( /$T_CONST_LBL/o ) {
474 $chkcat[$i] = 'literal';
477 } elsif ( /^${T_US}__stg_split_marker(\d*)${T_POST_LBL}$/o ) {
479 $chkcat[$i] = 'splitmarker';
482 } elsif ( /^${T_US}([A-Za-z0-9_]+)_info${T_POST_LBL}$/o ) {
485 $chkcat[$i] = 'infotbl';
486 $chksymb[$i] = $symb;
488 die "Info table already? $symb; $i\n" if defined($infochk{$symb});
490 $infochk{$symb} = $i;
492 } elsif ( /^${T_US}([A-Za-z0-9_]+)_(entry|ret)${T_POST_LBL}$/o ) {
494 $chkcat[$i] = 'slow';
499 } elsif ( /^${T_US}([A-Za-z0-9_]+)_fast\d*${T_POST_LBL}$/o ) {
501 $chkcat[$i] = 'fast';
506 } elsif ( /^${T_US}([A-Za-z0-9_]+)_closure${T_POST_LBL}$/o ) {
508 $chkcat[$i] = 'closure';
511 $closurechk{$1} = $i;
513 } elsif ( /^${T_US}([A-Za-z0-9_]+)_srt${T_POST_LBL}$/o ) {
520 } elsif ( /^${T_US}([A-Za-z0-9_]+)_ct${T_POST_LBL}$/o ) {
522 $chkcat[$i] = 'data';
525 } elsif ( /^${T_US}ghc.*c_ID${T_POST_LBL}/o ) {
527 $chkcat[$i] = 'consist';
529 } elsif ( /^(${T_US}__gnu_compiled_c|gcc2_compiled\.)${T_POST_LBL}/o ) {
532 } elsif ( /^${T_US}[A-Za-z0-9_]+\.\d+${T_POST_LBL}$/o
533 || /^${T_US}.*_CAT${T_POST_LBL}$/o # PROF: _entryname_CAT
534 || /^${T_US}.*_done${T_POST_LBL}$/o # PROF: _module_done
535 || /^${T_US}_module_registered${T_POST_LBL}$/o # PROF: _module_registered
538 $chkcat[$i] = 'data';
541 } elsif ( /^([A-Za-z0-9_]+)\s+\.comm/ && $TargetPlatform =~ /^hppa/ ) {
546 } elsif ( $TargetPlatform =~ /^powerpc-|^rs6000-/ && /^LC\.\.([0-9]+)/ ) {
551 } elsif ( /^${T_US}([A-Za-z0-9_]+)_cc(s)?${T_POST_LBL}$/o ) {
552 # all CC_ symbols go in the data section...
554 $chkcat[$i] = 'data';
557 } elsif ( /^${T_US}([A-Za-z0-9_]+)_(alt|dflt)${T_POST_LBL}$/o ) {
559 $chkcat[$i] = 'misc';
562 #$chksymb[$i] = $symbtmp if ($TargetPlatform =~ /^powerpc-|^rs6000-/) ; #rm andre
564 } elsif ( /^${T_US}([A-Za-z0-9_]+)_vtbl${T_POST_LBL}$/o ) {
566 $chkcat[$i] = 'vector';
571 # As a temporary solution for compiling "foreign export" declarations,
572 # we use global variables to pass arguments from C to STG land.
573 # These declarations live in the .hc file and not in the generated C
574 # stub file, so we let them pass through here.
575 } elsif ( /^[\t ]+\.comm[\t ]+__fexp_.*$/ ) {
577 $chkcat[$i] = 'data';
580 } elsif ( $TargetPlatform =~ /^i386-.*-solaris2/
581 && /^[A-Za-z0-9][A-Za-z0-9_]*:/ ) {
582 # Some Solaris system headers contain function definitions (as
583 # opposed to mere prototypes), which end up in the .hc file when
584 # a Haskell module foreign imports the corresponding system
585 # functions (most notably stat()). We put them into the text
586 # segment. Note that this currently does not extend to function
587 # names starting with an underscore.
590 $chkcat[$i] = 'misc';
593 } elsif ( /^${T_US}[A-Za-z0-9_]/o
594 && ( $TargetPlatform !~ /^hppa/ # need to avoid local labels in this case
596 && ( $TargetPlatform !~ /^powerpc|^rs6000/ # ditto
597 || ! /^(L\.\.\d+|LT\.\..*):$/ ) ) {
600 print STDERR "Funny global thing?: $_"
601 unless # $KNOWN_FUNNY_THING{$thing}
602 /^${T_US}stg_.*${T_POST_LBL}$/o # RTS internals (now dead?)
603 || /^${T_US}__stg_.*${T_POST_LBL}$/o # more RTS internals
604 || /^${T_US}__fexp_.*${T_POST_LBL}$/o # foreign export
605 || /^${T_US}__stginit.*${T_POST_LBL}$/o # __stginit<module>
606 || /^${T_US}.*_btm${T_POST_LBL}$/o # large bitmaps
607 || /^${T_US}.*_closure_tbl${T_POST_LBL}$/o # closure tables
608 || /^_uname:/o; # x86/Solaris2
610 $chkcat[$i] = 'misc';
611 if ($TargetPlatform =~ /^powerpc-|^rs6000-/)
612 { $chksymb[$i] = $thing; }
613 else { $chksymb[$i] = ''; };
615 } else { # simple line (duplicated at the top)
620 $numchks = $#chk + 1;
622 # open CHUNKS, ">/tmp/chunks1" or die "Cannot open /tmp/chunks1: $!\n";
623 # for (my $i = 0; $i < @chk; ++$i) { print CHUNKS "======= $i =======\n", $chk[$i] }
626 # the division into chunks is imperfect;
627 # we throw some things over the fence into the next
630 # also, there are things we would like to know
631 # about the whole module before we start spitting
634 local($FIRST_MANGLABLE) = ($TargetPlatform =~ /^(alpha-|hppa|mips-)/) ? 1 : 0;
635 local($FIRST_TOSSABLE ) = ($TargetPlatform =~ /^(hppa|mips-)/) ? 1 : 0;
637 # print STDERR "first chunk to mangle: $FIRST_MANGLABLE\n";
639 # Alphas: NB: we start meddling at chunk 1, not chunk 0
640 # The first ".rdata" is quite magical; as of GCC 2.7.x, it
641 # spits a ".quad 0" in after the very first ".rdata"; we
642 # detect this special case (tossing the ".quad 0")!
643 local($magic_rdata_seen) = 0;
645 # HPPAs, MIPSen: also start medding at chunk 1
647 if ($TargetPlatform =~ /^powerpc|^rs6000/) {
648 print OUTASM $T_HDR_toc; # yes, we have to put a .toc
649 # in the beginning of every file!
650 %tocequiv = (); # maps toc symbol number to toc symbol
651 %revtocequiv = (); # maps toc symbol to toc symbol number
652 for ($i = 1; $i < $numchks; $i++) {
653 $chk[$i] =~ s/\[RW\]//g;
654 $chk[$i] =~ s/\[DS\]//g;
655 $chk[$i] =~ s/^\.csect .*\[DS\]$//g;
657 if ( $chkcat[$i] eq 'toc' && $chk[$i] !~ /\.byte/ )
658 #ToDo: instead of all these changes, just fix mangle_powerpc_tailjump and delete/ignore these tocs?
659 { $chk[$i] =~ s/$T_MOVE_DIRVS//g;
660 $chk[$i] =~ s/\t\.tc (\S+)\[TC\],(\S+_fast\d+)/\t\.tc \1\[TC\],\.\2/;
661 $chk[$i] =~ s/\t\.tc (\S+)\[TC\],(\S+_entry)\n/\t\.tc \1\[TC\],\.\2\n/;
662 $chk[$i] =~ s/\t\.tc (\S+)\[TC\],(ret_\S+)/\t\.tc \1\[TC\],\.\2/;
663 $chk[$i] =~ s/\t\.tc (\S+)\[TC\],(alt_\S+)/\t\.tc \1\[TC\],\.\2/;
664 $chk[$i] =~ s/\t\.tc (\S+)\[TC\],(vtbl_\S+)/\t\.tc \1\[TC\],\.\2/;
666 $tocnumber = $chksymb[$i];
668 $tocsymb =~ s/^LC\.\.\d+:\n//;
669 $tocsymb =~ s/^\t\.tc \S+,(\S+)\n/\1/;
670 $tocequiv{$tocnumber} = $tocsymb;
672 } elsif ( $chkcat[$i] eq 'toc' && $chk[$i] =~ /\.byte/ ) {
673 $chkcat[$i] = 'literal';
678 for ($i = $FIRST_TOSSABLE; $i < $numchks; $i++) {
679 $c = $chk[$i]; # convenience copy
681 # print STDERR "\nCHK $i (BEFORE) (",$chkcat[$i],"):\n", $c;
683 # toss all prologue stuff; HPPA is pretty weird
685 $c = &mash_hppa_prologue($c) if $TargetPlatform =~ /^hppa/;
687 # be slightly paranoid to make sure there's
688 # nothing surprising in there
689 if ( $c =~ /--- BEGIN ---/ ) {
690 if (($p, $r) = split(/--- BEGIN ---/, $c)) {
692 if ($TargetPlatform =~ /^i386-/) {
693 $p =~ s/^\tpushl\s+\%edi\n//;
694 $p =~ s/^\tpushl\s+\%esi\n//;
695 $p =~ s/^\tpushl\s+\%ebx\n//;
696 $p =~ s/^\tsubl\s+\$\d+,\s*\%esp\n//;
697 $p =~ s/^\tmovl\s+\$\d+,\s*\%eax\n\tcall\s+__alloca\n// if ($TargetPlatform =~ /^.*-cygwin32/);
698 } elsif ($TargetPlatform =~ /^m68k-/) {
699 $p =~ s/^\tlink a6,#-?\d.*\n//;
700 $p =~ s/^\tpea a6@\n\tmovel sp,a6\n//;
701 # The above showed up in the asm code,
702 # so I added it here.
703 # I hope it's correct.
705 $p =~ s/^\tmovel d2,sp\@-\n//;
706 $p =~ s/^\tmovel d5,sp\@-\n//; # SMmark.* only?
707 $p =~ s/^\tmoveml \#0x[0-9a-f]+,sp\@-\n//; # SMmark.* only?
708 } elsif ($TargetPlatform =~ /^mips-/) {
709 # the .frame/.mask/.fmask that we use is the same
710 # as that produced by GCC for miniInterpret; this
711 # gives GDB some chance of figuring out what happened
712 $FRAME = "\t.frame\t\$sp,2168,\$31\n\t.mask\t0x90000000,-4\n\t.fmask\t0x00000000,0\n";
713 $p =~ s/^\t\.(frame).*\n/__FRAME__/g;
714 $p =~ s/^\t\.(mask|fmask).*\n//g;
715 $p =~ s/^\t\.cprestore.*\n/\t\.cprestore 416\n/; # 16 + 100 4-byte args
716 $p =~ s/^\tsubu\t\$sp,\$sp,\d+\n//;
717 $p =~ s/^\tsw\t\$31,\d+\(\$sp\)\n//;
718 $p =~ s/^\tsw\t\$fp,\d+\(\$sp\)\n//;
719 $p =~ s/^\tsw\t\$28,\d+\(\$sp\)\n//;
720 $p =~ s/__FRAME__/$FRAME/;
721 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000/) {
722 $p =~ s/^\tmflr 0\n//;
723 $p =~ s/^\tstm \d+,-\d+\(1\)\n//;
724 $p =~ s/^\tstw? 0,\d+\(1\)\n//g;
725 $p =~ s/^\tstw? 1,\d+\(1\)\n//g; #mc
726 $p =~ s/^\tlw?z 0,0\(1\)\n//g; #mc
727 $p =~ s/^\tstw?u 1,-\d+\(1\)\n//;
728 $p =~ s/^\tstw? \d+,-\d+\(1\)\n//g;
729 $p =~ s/^\tstfd \d+,-\d+\(1\)\n//g;
731 print STDERR "$Pgm: unknown prologue mangling? $TargetPlatform\n";
734 # HWL HACK: dont die, just print a warning
735 #print stderr "HWL: this should die! Prologue junk?: $p\n" if $p =~ /^\t[^\.]/
736 # && $TargetPlatform !~ /^powerpc-/; #ToDo: remove test
737 die "Prologue junk?: $p\n" if $p =~ /^\t[^\.]/
738 && $TargetPlatform !~ /^powerpc-/; #ToDo: remove test
740 # glue together what's left
742 $c =~ s/\n\t\n/\n/; # junk blank line
746 if ( $TargetPlatform =~ /^mips-/ ) {
747 # MIPS: first, this basic sequence may occur "--- END ---" or not
748 $c =~ s/^\tlw\t\$31,\d+\(\$sp\)\n\taddu\t\$sp,\$sp,\d+\n\tj\t\$31\n\t\.end/\t\.end/;
751 # toss all epilogue stuff; again, paranoidly
752 if ( $c =~ /--- END ---/ ) {
753 if (($r, $e) = split(/--- END ---/, $c)) {
754 if ($TargetPlatform =~ /^i386-/) {
756 $e =~ s/^\tpopl\s+\%edi\n//;
757 $e =~ s/^\tpopl\s+\%esi\n//;
758 $e =~ s/^\tpopl\s+\%edx\n//;
759 $e =~ s/^\tpopl\s+\%ecx\n//;
760 $e =~ s/^\taddl\s+\$\d+,\s*\%esp\n//;
761 $e =~ s/^\tsubl\s+\$-\d+,\s*\%esp\n//;
762 } elsif ($TargetPlatform =~ /^m68k-/) {
763 $e =~ s/^\tunlk a6\n//;
765 } elsif ($TargetPlatform =~ /^mips-/) {
766 $e =~ s/^\tlw\t\$31,\d+\(\$sp\)\n//;
767 $e =~ s/^\tlw\t\$fp,\d+\(\$sp\)\n//;
768 $e =~ s/^\taddu\t\$sp,\$sp,\d+\n//;
769 $e =~ s/^\tj\t\$31\n//;
770 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
771 $e =~ s/^\taddi 1,1,\d+\n//;
772 $e =~ s/^\tcal 1,\d+\(1\)\n//;
773 $e =~ s/^\tlw?z? \d+,\d+\(1\)\n//;
774 $e =~ s/^\tmtlr 0\n//;
777 print STDERR "$Pgm: unknown epilogue mangling? $TargetPlatform\n";
780 print STDERR "WARNING: Epilogue junk?: $e\n" if $e =~ /^\t\s*[^\.\s\n]/
781 && $TargetPlatform !~ /^powerpc-/; #ToDo: remove test
783 # glue together what's left
785 $c =~ s/\n\t\n/\n/; # junk blank line
789 # On SPARCs, we don't do --- BEGIN/END ---, we just
790 # toss the register-windowing save/restore/ret* instructions
792 if ( $TargetPlatform =~ /^sparc-/ ) {
793 $c =~ s/^\t(save.*|restore|ret|retl)\n//g;
794 # throw away PROLOGUE comments
795 $c =~ s/^\t!#PROLOGUE# 0\n\t!#PROLOGUE# 1\n//;
798 # On Alphas, the prologue mangling is done a little later (below)
800 # toss all calls to __DISCARD__
801 $c =~ s/^\t(call|jbsr|jal)\s+${T_US}__DISCARD__\n//go;
803 # MIPS: that may leave some gratuitous asm macros around
804 # (no harm done; but we get rid of them to be tidier)
805 $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/
806 if $TargetPlatform =~ /^mips-/;
808 # toss stack adjustment after DoSparks
809 $c =~ s/^(\tjbsr _DoSparks\n)\taddqw #8,sp/$1/g
810 if $TargetPlatform =~ /^m68k-/; # this looks old...
812 if ( $TargetPlatform =~ /^alpha-/ &&
813 ! $magic_rdata_seen &&
814 $c =~ /^\s*\.rdata\n\t\.quad 0\n\t\.align \d\n/ ) {
815 $c =~ s/^\s*\.rdata\n\t\.quad 0\n\t\.align (\d)\n/\.rdata\n\t\.align $1\n/;
816 $magic_rdata_seen = 1;
819 # pick some end-things and move them to the next chunk
821 # pin a funny end-thing on (for easier matching):
822 $c .= 'FUNNY#END#THING';
824 while ( $c =~ /${T_MOVE_DIRVS}FUNNY#END#THING/o ) {
828 # on x86 we try not to copy any directives into a literal
829 # chunk, rather we keep looking for the next real chunk. This
830 # is because we get things like
832 # .globl blah_closure
838 if ( $TargetPlatform =~ /^(i386|sparc)/ && $to_move =~ /${T_COPY_DIRVS}/ ) {
840 while ( $j < $numchks && $chk[$j] =~ /$T_CONST_LBL/) {
843 if ( $j < $numchks ) {
844 $chk[$j] = $to_move . $chk[$j];
848 elsif ( $i < ($numchks - 1)
849 && ( $to_move =~ /${T_COPY_DIRVS}/
850 || ($TargetPlatform =~ /^hppa/ && $to_move =~ /align/ && $chkcat[$i+1] eq 'literal') )) {
851 $chk[$i + 1] = $to_move . $chk[$i + 1];
852 # otherwise they're tossed
855 $c =~ s/${T_MOVE_DIRVS}FUNNY#END#THING/FUNNY#END#THING/o;
858 if ( $TargetPlatform =~ /^alpha-/ && $c =~ /^\t\.ent\s+(\S+)/ ) {
860 # toss all prologue stuff, except for loading gp, and the ..ng address
861 if (($p, $r) = split(/^\t\.prologue/, $c)) {
862 if (($keep, $junk) = split(/\.\.ng:/, $p)) {
863 $keep =~ s/^\t\.frame.*\n/\t.frame \$30,0,\$26,0\n/;
864 $keep =~ s/^\t\.(mask|fmask).*\n//g;
865 $c = $keep . "..ng:\n";
867 print STDERR "malformed code block ($ent)?\n"
870 $c .= "\t.prologue" . $r;
873 $c =~ s/FUNNY#END#THING//;
875 # print STDERR "\nCHK $i (AFTER) (",$chkcat[$i],"):\n", $c;
877 $chk[$i] = $c; # update w/ convenience copy
880 # open CHUNKS, ">/tmp/chunks2" or die "Cannot open /tmp/chunks2: $!\n";
881 # for (my $i = 0; $i < @chk; ++$i) { print CHUNKS "======= $i =======\n", $chk[$i] }
884 if ( $TargetPlatform =~ /^alpha-/ ) {
885 # print out the header stuff first
886 $chk[0] =~ s/^(\t\.file.*)"(ghc\d+\.c)"/$1"$ifile_root.hc"/;
887 print OUTASM $chk[0];
889 } elsif ( $TargetPlatform =~ /^hppa/ ) {
890 print OUTASM $chk[0];
892 } elsif ( $TargetPlatform =~ /^mips-/ ) {
893 $chk[0] = "\t\.file\t1 \"$ifile_root.hc\"\n" . $chk[0];
895 # get rid of horrible "<dollar>Revision: .*$" strings
896 local(@lines0) = split(/\n/, $chk[0]);
898 while ( $z <= $#lines0 ) {
899 if ( $lines0[$z] =~ /^\t\.byte\t0x24,0x52,0x65,0x76,0x69,0x73,0x69,0x6f$/ ) {
902 while ( $z <= $#lines0 ) {
904 last if $lines0[$z] =~ /[,\t]0x0$/;
910 $chk[0] = join("\n", @lines0);
911 $chk[0] =~ s/\n\n+/\n/;
912 print OUTASM $chk[0];
915 # print out all the literal strings next
916 for ($i = 0; $i < $numchks; $i++) {
917 if ( $chkcat[$i] eq 'literal' ) {
918 print OUTASM $T_HDR_literal, $chk[$i];
919 print OUTASM "; end literal\n" if $TargetPlatform =~ /^hppa/; # for the splitter
921 $chkcat[$i] = 'DONE ALREADY';
925 # on the HPPA, print out all the bss next
926 if ( $TargetPlatform =~ /^hppa/ ) {
927 for ($i = 1; $i < $numchks; $i++) {
928 if ( $chkcat[$i] eq 'bss' ) {
929 print OUTASM "\t.SPACE \$PRIVATE\$\n\t.SUBSPA \$BSS\$\n\t.align 4\n";
930 print OUTASM $chk[$i];
932 $chkcat[$i] = 'DONE ALREADY';
937 for ($i = $FIRST_MANGLABLE; $i < $numchks; $i++) {
938 # print STDERR "$i: cat $chkcat[$i], symb $chksymb[$i]\n";
940 next if $chkcat[$i] eq 'DONE ALREADY';
942 if ( $chkcat[$i] eq 'misc' ) {
943 if ($chk[$i] ne '') {
944 print OUTASM $T_HDR_misc;
945 if ($TargetPlatform =~ /^powerpc-|^rs6000/) {
946 $chksymb[$i] =~ s/://;
947 #new if ($chksymb[$i] =~ /ret.*upd/ || $KNOWN_FUNNY_THING{$chksymb[$i]}
948 #new || $chksymb[$i] =~ /^$.{T_US}_(PRIn|PRStart).*${T_POST_LBL}$/o )
949 #new { print OUTASM "\t\.globl $chksymb[$i]\n"; }
950 # if ($chksymb[$i] ne '' && $chksymb[$i] !~ /ret_[a-z]/ && $chksymb[$i] !~ /djn_[a-z]/)
951 if ($chksymb[$i] ne '')
952 { print OUTASM "\t\.globl \.$chksymb[$i]\n"; };
953 if ($chk[$i] =~ /TOC\[tc0\], 0\n/)
954 { ($p, $r) = split(/TOC\[tc0\], 0\n/, $chk[$i]); $printDS = 1;}
955 else { $r = $chk[$i]; $printDS = 0; };
956 $chk[$i] = &mangle_powerpc_tailjump($r);
958 &print_doctored($chk[$i], 0);
959 if ($TargetPlatform =~ /^powerpc-|^rs6000-/ && $printDS) {
960 #ok if ($chksymb[$i] !~ /\__stginit_Main/) {
961 print OUTASM "\.csect ${chksymb[$i]}[DS]\n";
962 print OUTASM "${p}TOC[tc0], 0\n";
967 } elsif ( $chkcat[$i] eq 'toss' ) {
968 print STDERR "*** NB: TOSSING code for $chksymb[$i] !!! ***\n";
970 } elsif ( $chkcat[$i] eq 'data' ) {
971 if ($chk[$i] ne '') {
972 print OUTASM $T_HDR_data;
973 print OUTASM $chk[$i];
976 } elsif ( $chkcat[$i] eq 'consist' ) {
977 if ( $chk[$i] =~ /$T_hsc_cc_PAT/o ) {
978 local($consist) = "$1.$2.$3";
980 $consist =~ s/\//./g;
982 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
984 # Using a cygnus-2.7-96q4 gcc build on hppas, the
985 # consistency chunk for ghc_cc_ID often (but not always!)
986 # gets lumped with a bunch of .IMPORT directives containing info on
987 # the code or data space nature of external symbols. We can't
988 # toss these, so once the consistency ID has been turned into
989 # a representable symbol, we substitute it for the symbol
990 # that the string was attached to in the first place (ghc_cc_ID.)
991 # (The original string is also substituted away.)
993 # This change may affect the code output on other platforms in
994 # adverse ways, hence we restrict this hack hppa targets only.
997 if ( $TargetPlatform =~ /^hppa/ ) {
998 $chk[$i] =~ s/^${T_US}ghc.*c_ID$TPOSTLBL/$consist/o;
999 $chk[$i] =~ s/\t$T_hsc_cc_PAT/$T_HDR_misc/o;
1000 $consist = $chk[$i]; #clumsily
1002 print OUTASM $T_HDR_consist, "${consist}${T_POST_LBL}\n";
1004 } elsif ( $TargetPlatform !~ /^(mips)-/ ) { # we just don't try in those case (ToDo)
1005 # on mips: consistency string is just a v
1006 # horrible bunch of .bytes,
1007 # which I am too lazy to sort out (WDP 95/05)
1009 print STDERR "Couldn't grok consistency: ", $chk[$i];
1012 } elsif ( $chkcat[$i] eq 'splitmarker' ) {
1013 # we can just re-constitute this one...
1014 # NB: we emit _three_ underscores no matter what,
1015 # so ghc-split doesn't have to care.
1016 print OUTASM "___stg_split_marker",$chksymb[$i],"${T_POST_LBL}\n";
1018 } elsif ( $chkcat[$i] eq 'closure'
1019 || $chkcat[$i] eq 'srt'
1020 || $chkcat[$i] eq 'infotbl'
1021 || $chkcat[$i] eq 'slow'
1022 || $chkcat[$i] eq 'fast' ) { # do them in that order
1023 $symb = $chksymb[$i];
1026 if ( defined($closurechk{$symb}) ) {
1027 print OUTASM $T_HDR_closure;
1028 print OUTASM $chk[$closurechk{$symb}];
1029 $chkcat[$closurechk{$symb}] = 'DONE ALREADY';
1033 if ( defined($srtchk{$symb}) ) {
1034 print OUTASM $T_HDR_srt;
1035 print OUTASM $chk[$srtchk{$symb}];
1036 $chkcat[$srtchk{$symb}] = 'DONE ALREADY';
1040 if ( defined($infochk{$symb}) ) {
1042 print OUTASM $T_HDR_info;
1043 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1044 if ( !defined($slowchk{$symb}) && defined($fastchk{$symb}) ) {
1045 $fastname = $chk[$fastchk{$symb}];
1046 $fastname =~ s/([_A-Za-z]*_fast\d+):.*(.*\n)*/\1/;
1047 $chk[$infochk{$symb}] =~ s/\.long StdErrorCode/\.long $fastname/;
1049 $chk[$infochk{$symb}] =~ s/\.long ([_A-Za-z]\S+_entry)/\.long \.\1/;
1050 $chk[$infochk{$symb}] =~ s/\.long ([A-Za-z]\S+_upd)/\.long \.\1/;
1051 print OUTASM $chk[$infochk{$symb}];
1053 print OUTASM &rev_tbl($symb, $chk[$infochk{$symb}], 1);
1055 # entry code will be put here!
1057 $chkcat[$infochk{$symb}] = 'DONE ALREADY';
1061 if ( defined($slowchk{$symb}) ) {
1063 # teach it to drop through to the fast entry point:
1064 $c = $chk[$slowchk{$symb}];
1066 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1067 ($p, $r) = split(/TOC\[tc0\], 0\n/, $c);
1068 if ($symb =~ /^[_A-Z]/)
1070 print OUTASM "\t\.globl \.${chksymb[$i]}_entry\n";
1071 print OUTASM "\.csect ${symb}_entry[DS]\n";
1072 print OUTASM "${p}TOC[tc0], 0\n";
1074 $r =~ s/\.csect \.text\[PR\]\n//; # todo: properly - andre
1075 $c = &mangle_powerpc_tailjump($r);
1078 if ( defined($fastchk{$symb}) ) {
1079 if ( $TargetPlatform =~ /^alpha-/ ) {
1080 $c =~ s/^\tjmp \$31,\(\$27\),0\n\t\.align 4\n\t\.end/\t.align 4\n\t.end/;
1081 } elsif ( $TargetPlatform =~ /^hppa/ ) {
1082 $c =~ s/^\s+ldil.*\n\s+ldo.*\n\s+bv.*\n(.*\n)?\s+\.EXIT/$1\t.EXIT/;
1083 } elsif ( $TargetPlatform =~ /^i386-/ ) {
1084 # Reg alloc depending, gcc generated code may jump to the fast entry point via
1085 # a number of registers.
1086 $c =~ s/^\tmovl\s+\$${T_US}${symb}_fast\d*,\s*\%edx\n\tjmp\s+\*\%edx\n//;
1087 $c =~ s/^\tmovl\s+\$${T_US}${symb}_fast\d*,\s*\%ecx\n\tjmp\s+\*\%ecx\n//;
1088 $c =~ s/^\tmovl\s+\$${T_US}${symb}_fast\d*,\s*\%eax\n\tjmp\s+\*\%eax\n//;
1089 # The next two only apply if we're not stealing %esi or %edi.
1090 $c =~ s/^\tmovl\s+\$${T_US}${symb}_fast\d*,\s*\%esi\n\tjmp\s+\*\%esi\n// if ($StolenX86Regs < 3);
1091 $c =~ s/^\tmovl\s+\$${T_US}${symb}_fast\d*,\s*\%edi\n\tjmp\s+\*\%edi\n// if ($StolenX86Regs < 4);
1092 } elsif ( $TargetPlatform =~ /^mips-/ ) {
1093 $c =~ s/^\tjmp \$31,\(\$27\),0\n\t\.align 4\n\t\.end/\t.align 4\n\t.end/;
1094 } elsif ( $TargetPlatform =~ /^m68k-/ ) {
1095 $c =~ s/^\tjmp ${T_US}${symb}_fast\d+.*\n\tnop\n//;
1096 $c =~ s/^\tjmp ${T_US}${symb}_fast\d+.*\n//;
1097 } elsif ( $TargetPlatform =~ /^powerpc-|^rs6000-/ ) {
1098 $c =~ s/^\tb \.${T_US}${symb}_fast\d+\n//;
1099 } elsif ( $TargetPlatform =~ /^sparc-/ ) {
1100 $c =~ s/^\tcall\s+${T_US}${symb}_fast\d+,.*\n\t\s*nop\n//;
1101 $c =~ s/^\tcall\s+${T_US}${symb}_fast\d+,.*\n(\t\s*[a-z].*\n)/$1/;
1103 print STDERR "$Pgm: mystery slow-fast dropthrough: $TargetPlatform\n";
1107 if ( $TargetPlatform !~ /^(alpha-|hppa|mips-)/ ) {
1108 # On alphas, hppa: no very good way to look for "dangling"
1109 # references to fast-entry point.
1110 # (questionable re hppa and mips...)
1111 print STDERR "still has jump to fast entry point:\n$c"
1112 if $c =~ /\b${T_US}${symb}_fast/;
1115 print OUTASM $T_HDR_entry;
1117 &print_doctored($c, 1); # NB: the 1!!!
1119 $chkcat[$slowchk{$symb}] = 'DONE ALREADY';
1123 if ( defined($fastchk{$symb}) ) {
1124 $c = $chk[$fastchk{$symb}];
1125 if ( ! defined($slowchk{$symb})
1126 # ToDo: the || clause can go once we're no longer
1127 # concerned about producing exactly the same output as before
1128 #OLD: || $TargetPlatform =~ /^(m68k|sparc|i386)-/
1130 print OUTASM $T_HDR_fast;
1132 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1133 local(@lbls) = split(/:/, $c);
1134 $fullname = $lbls[0];
1135 $fullname =~ s/$T_MOVE_DIRVS//g;
1136 if ( $fullname =~ /^[A-Z]/)
1137 { print OUTASM "\t\.globl \.${fullname}\n";
1139 # print OUTASM "\t\.lglobl \.${fullname}\n"; #todo: rm - andre
1141 $c =~ s/((.*\n)*)\t.long \S+, TOC\[tc0\], 0\n\.csect \.text\[PR\]\n((.*\n)*)/\1\3/;
1142 $c = &mangle_powerpc_tailjump($c);
1144 &print_doctored($c, 0);
1145 $chkcat[$fastchk{$symb}] = 'DONE ALREADY';
1148 } elsif ( $chkcat[$i] eq 'vector'
1149 || $chkcat[$i] eq 'direct' ) { # do them in that order
1150 $symb = $chksymb[$i];
1153 if ( defined($vectorchk{$symb}) ) {
1154 print OUTASM $T_HDR_vector;
1155 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1156 if ( $symb =~ /^[A-Z]/) {
1157 print OUTASM "\t\.globl \.${symb}_vtbl\n";
1158 print OUTASM "\t\.globl ${symb}_vtbl\n";
1160 $chk[$vectorchk{$symb}] =~ s/\.long (\S+)/\.long \.\1/g;
1161 print OUTASM ".${symb}_vtbl:\n";
1162 print OUTASM $chk[$vectorchk{$symb}];
1164 print OUTASM &rev_tbl($symb, $chk[$vectorchk{$symb}], 0);
1165 # DO NOT DELETE THE NEXT LINE. It fixes a rather subtle GC bug
1166 # which showed up as a segfault reported by Ryszard Kubiak.
1167 # Problem is with vector tables. They wind up as follows:
1169 # .word some-other-word
1171 # Problem is that we want the label fooble_vtbl to be considered
1172 # in the same section as the vtbl itself, but the label actually
1173 # lives at the next word along. If a data segment should happen
1174 # to immediately follow the vtbl, as it can in GHCi, the label will
1175 # be malclassified as in the data rather than text segment (during
1176 # GC), and so we will regard references to it as static closure
1177 # pointers rather than as code pointers, which is an error which
1178 # usually crashes the garbage collectors.
1179 # To fix this, we place a dummy word after the label, so as to
1180 # ensure that the label is in the same segment as the vtbl proper.
1181 # The native code generator has an analogous fix; see
1182 # ghc/compiler/nativeGen/AbsCStixGen.lhs line 107.
1183 print OUTASM "${T_create_word} 0\n";
1185 # direct return code will be put here!
1186 $chkcat[$vectorchk{$symb}] = 'DONE ALREADY';
1188 } elsif ( $TargetPlatform =~ /^alpha-/ ) {
1189 # Alphas: the commented nop is for the splitter, to ensure
1190 # that no module ends with a label as the very last
1191 # thing. (The linker will adjust the label to point
1192 # to the first code word of the next module linked in,
1193 # even if alignment constraints cause the label to move!)
1195 print OUTASM "\t# nop\n";
1198 } elsif ( $chkcat[$i] eq 'toc' ) {
1199 # silly optimisation to print tocs, since they come in groups...
1200 print OUTASM $T_HDR_toc;
1202 while ($chkcat[$j] eq 'toc')
1203 { if ( $chk[$j] !~ /\.tc UpdatePAP\[TC\]/ # not needed: always turned into a jump.
1206 print OUTASM $chk[$j];
1208 $chkcat[$j] = 'DONE ALREADY';
1213 &tidy_up_and_die(1,"$Pgm: unknown chkcat (ghc-asm: $TargetPlatform)\n$chkcat[$i]\n$chk[$i]\n");
1217 print OUTASM $EXTERN_DECLS if $TargetPlatform =~ /^mips-/;
1219 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1220 print OUTASM ".csect .text[PR]\n_section_.text:\n.csect .data[RW]\n\t.long _section_.text\n"
1224 close(OUTASM) || &tidy_up_and_die(1,"Failed writing to $out_asmf\n");
1225 close(INASM) || &tidy_up_and_die(1,"Failed reading from $in_asmf\n");
1230 sub mash_hppa_prologue { # OK, epilogue, too
1233 # toss all prologue stuff
1234 s/^\s+\.ENTRY[^\0]*--- BEGIN ---/\t.ENTRY/;
1236 # Lie about our .CALLINFO
1237 s/^\s+\.CALLINFO.*$/\t.CALLINFO NO_CALLS,NO_UNWIND/;
1244 # toss all epilogue stuff
1245 s/^\s+--- END ---[^\0]*\.EXIT/\t.EXIT/;
1247 # Sorry; we moved the _info stuff to the code segment.
1248 s/_info,DATA/_info,CODE/g;
1255 sub print_doctored {
1256 local($_, $need_fallthru_patch) = @_;
1258 if ( $TargetPlatform !~ /^i386-/
1259 || ! /^\t[a-z]/ # no instructions in here, apparently
1260 || /^${T_US}__stginit_[A-Za-z0-9_]+${T_POST_LBL}/) {
1264 # OK, must do some x86 **HACKING**
1266 local($entry_patch) = '';
1267 local($exit_patch) = '';
1269 # gotta watch out for weird instructions that
1270 # invisibly smash various regs:
1271 # rep* %ecx used for counting
1272 # scas* %edi used for destination index
1273 # cmps* %e[sd]i used for indices
1274 # loop* %ecx used for counting
1279 # * use of STG reg [ nn(%ebx) ] where no machine reg avail
1281 # * GCC used an "STG reg" for its own purposes
1283 # * some secret uses of machine reg, requiring STG reg
1284 # to be saved/restored
1286 # The most dangerous "GCC uses" of an "STG reg" are when
1287 # the reg holds the target of a jmp -- it's tricky to
1288 # insert the patch-up code before we get to the target!
1289 # So here we change the jmps:
1291 # --------------------------------------------------------
1292 # it can happen that we have jumps of the form...
1293 # jmp *<something involving %esp>
1295 # jmp <something involving another naughty register...>
1297 # a reasonably-common case is:
1299 # movl $_blah,<bad-reg>
1303 s/^\tmovl\s+\$${T_US}(.*),(\%e[abcd]x)\n\tjmp\s+\*\2/\tjmp $T_US$1/g;
1305 if ($StolenX86Regs <= 2 ) { # YURGH! spurious uses of esi?
1306 s/^\tmovl\s+(.*),\s*\%esi\n\tjmp\s+\*%esi\n/\tmovl $1,\%eax\n\tjmp \*\%eax\n/g;
1307 s/^\tjmp\s+\*(-?\d*)\((.*\%esi.*)\)\n/\tmovl $2,\%eax\n\tjmp \*$1\(\%eax\)\n/g;
1308 s/^\tjmp\s+\*\%esi\n/\tmovl \%esi,\%eax\n\tjmp \*\%eax\n/g;
1309 die "$Pgm: (mangler) still have jump involving \%esi!\n$_"
1310 if /(jmp|call)\s+.*\%esi/;
1312 if ($StolenX86Regs <= 3 ) { # spurious uses of edi?
1313 s/^\tmovl\s+(.*),\s*\%edi\n\tjmp\s+\*%edi\n/\tmovl $1,\%eax\n\tjmp \*\%eax\n/g;
1314 s/^\tjmp\s+\*(-?\d*\(.*\%edi.*\))\n/\tmovl $1,\%eax\n\tjmp \*\%eax\n/g;
1315 s/^\tjmp\s+\*\%edi\n/\tmovl \%edi,\%eax\n\tjmp \*\%eax\n/g;
1316 die "$Pgm: (mangler) still have jump involving \%edi!\n$_"
1317 if /(jmp|call)\s+.*\%edi/;
1320 # OK, now we can decide what our patch-up code is going to
1323 # Offsets into register table - you'd better update these magic
1324 # numbers should you change its contents!
1325 # local($OFFSET_R1)=0; No offset for R1 in new RTS.
1326 local($OFFSET_Hp)=92;
1328 # Note funky ".=" stuff; we're *adding* to these _patch guys
1329 if ( $StolenX86Regs <= 2
1330 && ( /[^0-9]\(\%ebx\)/ || /\%esi/ || /^\tcmps/ ) ) { # R1 (esi)
1331 $entry_patch .= "\tmovl \%esi,(\%ebx)\n";
1332 $exit_patch .= "\tmovl (\%ebx),\%esi\n";
1334 # nothing for call_{entry,exit} because %esi is callee-save
1336 if ( $StolenX86Regs <= 3
1337 && ( /${OFFSET_Hp}\(\%ebx\)/ || /\%edi/ || /^\t(scas|cmps)/ ) ) { # Hp (edi)
1338 $entry_patch .= "\tmovl \%edi,${OFFSET_Hp}(\%ebx)\n";
1339 $exit_patch .= "\tmovl ${OFFSET_Hp}(\%ebx),\%edi\n";
1341 # nothing for call_{entry,exit} because %edi is callee-save
1344 # --------------------------------------------------------
1345 # next, here we go with non-%esp patching!
1347 s/^(\t[a-z])/$entry_patch$1/; # before first instruction
1349 # Before calling GC we must set up the exit condition before the call
1350 # and entry condition when we come back
1352 # fix _all_ non-local jumps:
1354 s/^\tjmp\s+\*${T_X86_PRE_LLBL_PAT}/\tJMP___SL/go;
1355 s/^\tjmp\s+${T_X86_PRE_LLBL_PAT}/\tJMP___L/go;
1357 s/^(\tjmp\s+.*\n)/$exit_patch$1/g; # here's the fix...
1359 s/^\tJMP___SL/\tjmp \*${T_X86_PRE_LLBL}/go;
1360 s/^\tJMP___L/\tjmp ${T_X86_PRE_LLBL}/go;
1362 if ($StolenX86Regs == 2 ) {
1363 die "ARGH! Jump uses \%esi or \%edi with -monly-2-regs:\n$_"
1364 if /^\t(jmp|call)\s+.*\%e(si|di)/;
1365 } elsif ($StolenX86Regs == 3 ) {
1366 die "ARGH! Jump uses \%edi with -monly-3-regs:\n$_"
1367 if /^\t(jmp|call)\s+.*\%edi/;
1370 # --------------------------------------------------------
1371 # that's it -- print it
1373 #die "Funny jumps?\n$_" if /${T_X86_BADJMP}/o; # paranoia
1377 if ( $need_fallthru_patch ) { # exit patch for end of slow entry code
1378 print OUTASM $exit_patch;
1379 # ToDo: make it not print if there is a "jmp" at the end
1385 sub init_FUNNY_THINGS {
1386 %KNOWN_FUNNY_THING = (
1388 # "${T_US}stg_.*{T_POST_LBL}", 1,
1393 The following table reversal is used for both info tables and return
1394 vectors. In both cases, we remove the first entry from the table,
1395 reverse the table, put the label at the end, and paste some code
1396 (that which is normally referred to by the first entry in the table)
1397 right after the table itself. (The code pasting is done elsewhere.)
1401 local($symb, $tbl, $discard1) = @_;
1403 local($before) = '';
1405 local(@imports) = (); # hppa only
1408 local(@lines) = split(/\n/, $tbl);
1411 # Deal with the header...
1412 for ($i = 0; $i <= $#lines && $lines[$i] !~ /^\t?${T_DOT_WORD}\s+/o; $i++) {
1413 $label .= $lines[$i] . "\n",
1414 next if $lines[$i] =~ /^[A-Za-z0-9_]+_info${T_POST_LBL}$/o
1415 || $lines[$i] =~ /${T_DOT_GLOBAL}/o
1416 || $lines[$i] =~ /^${T_US}\S+_vtbl${T_POST_LBL}$/o;
1418 $before .= $lines[$i] . "\n"; # otherwise...
1421 # Grab the table data...
1422 if ( $TargetPlatform !~ /^hppa/ ) {
1423 for ( ; $i <= $#lines && $lines[$i] =~ /^\t?${T_DOT_WORD}\s+/o; $i++) {
1424 push(@words, $lines[$i]);
1426 } else { # hppa weirdness
1427 for ( ; $i <= $#lines && $lines[$i] =~ /^\s+(${T_DOT_WORD}|\.IMPORT)/; $i++) {
1428 if ($lines[$i] =~ /^\s+\.IMPORT/) {
1429 push(@imports, $lines[$i]);
1431 # We don't use HP's ``function pointers''
1432 # We just use labels in code space, like normal people
1433 $lines[$i] =~ s/P%//;
1434 push(@words, $lines[$i]);
1439 # now throw away the first word (SRT) iff it is empty.
1440 # The .zero business is for Linux/ELF.
1441 # The .skip business is for Sparc/Solaris/ELF.
1442 # The .blockz business is for HPPA.
1443 if ($discard1 && $words[0] =~ /^\t?(${T_DOT_WORD}\s+0|\.zero\s+4|\.skip\s+4|\.blockz\s+4)/) {
1447 for (; $i <= $#lines; $i++) {
1448 $after .= $lines[$i] . "\n";
1451 # Alphas: If we have anonymous text (not part of a procedure), the
1452 # linker may complain about missing exception information. Bleh.
1453 # To suppress this, we place a .ent/.end pair around the code.
1454 # At the same time, we have to be careful and not enclose any leading
1455 # .file/.loc directives.
1456 if ( $TargetPlatform =~ /^alpha-/ && $label =~ /^([A-Za-z0-9_]+):$/) {
1457 local ($ident) = $1;
1458 $before =~ s/^((\s*\.(file|loc)\s+[^\n]*\n)*)/$1\t.ent $ident\n/;
1459 $after .= "\t.end $ident\n";
1462 # Alphas: The heroic Simon Marlow found a bug in the Digital UNIX
1463 # assembler (!) wherein .quad constants inside .text sections are
1464 # first narrowed to 32 bits then sign-extended back to 64 bits.
1465 # This obviously screws up our 64-bit bitmaps, so we work around
1466 # the bug by replacing .quad with .align 3 + .long + .long [ccshan]
1467 if ( $TargetPlatform =~ /^alpha-/ ) {
1469 if (/^\s*\.quad\s+([-+0-9].*\S)\s*$/ && length $1 >= 10) {
1470 local ($number) = $1;
1471 if ($number =~ /^([-+])?(0x?)?([0-9]+)$/) {
1472 local ($sign, $base, $digits) = ($1, $2, $3);
1473 $base = (10, 8, 16)[length $base];
1474 local ($hi, $lo) = (0, 0);
1475 foreach $i (split(//, $digits)) {
1476 $j = $lo * $base + $i;
1477 $lo = $j % 4294967296;
1478 $hi = $hi * $base + ($j - $lo) / 4294967296;
1480 ($hi, $lo) = (4294967295 - $hi, 4294967296 - $lo)
1482 $_ = "\t.align 3\n\t.long $lo\n\t.long $hi\n";
1483 # printf STDERR "TURNING %s into 0x %08x %08x\n", $number, $hi, $lo;
1485 print STDERR "Cannot handle \".quad $number\" in info table\n";
1493 . (($TargetPlatform !~ /^hppa/) ? '' : join("\n", @imports) . "\n")
1494 . join("\n", @words) . "\n"
1497 # print STDERR "before=$before\n";
1498 # print STDERR "label=$label\n";
1499 # print STDERR "words=",(reverse @words),"\n";
1500 # print STDERR "after=$after\n";
1506 The HP is a major nuisance. The threaded code mangler moved info
1507 tables from data space to code space, but unthreaded code in the RTS
1508 still has references to info tables in data space. Since the HP
1509 linker is very precise about where symbols live, we need to patch the
1510 references in the unthreaded RTS as well.
1513 sub mini_mangle_asm_hppa {
1514 local($in_asmf, $out_asmf) = @_;
1516 open(INASM, "< $in_asmf")
1517 || &tidy_up_and_die(1,"$Pgm: failed to open `$in_asmf' (to read)\n");
1518 open(OUTASM,"> $out_asmf")
1519 || &tidy_up_and_die(1,"$Pgm: failed to open `$out_asmf' (to write)\n");
1522 s/_info,DATA/_info,CODE/; # Move _info references to code space
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 $in_asmf\n");
1535 sub mini_mangle_asm_powerpc {
1536 local($in_asmf, $out_asmf) = @_;
1538 open(INASM, "< $in_asmf")
1539 || &tidy_up_and_die(1,"$Pgm: failed to open `$in_asmf' (to read)\n");
1540 open(OUTASM,"> $out_asmf")
1541 || &tidy_up_and_die(1,"$Pgm: failed to open `$out_asmf' (to write)\n");
1544 s/long _PRStart/long ._PRStart/;
1545 s/long _PRIn_/long ._PRIn_/;
1546 s/long _Dummy_(\S+)_entry/long ._Dummy_\1_entry/;
1547 s/long _PRMarking_MarkNextRoot\[DS\]/long ._PRMarking_MarkNextRoot/;
1548 s/long _PRMarking_MarkNextCAF\[DS\]/long ._PRMarking_MarkNextCAF/;
1549 s/long _PRMarking_MarkNextAStack\[DS\]/long ._PRMarking_MarkNextAStack/;
1550 s/long _PRMarking_MarkNextBStack\[DS\]/long ._PRMarking_MarkNextBStack/;
1551 s/\.tc EnterNodeCode\[TC]\,EnterNodeCode\[DS\]/\.tc EnterNodeCode\[TC]\,.EnterNodeCode/; # CONC
1552 s/\.tc CheckHeapCode\[TC]\,CheckHeapCode\[DS\]/\.tc CheckHeapCode\[TC]\,.CheckHeapCode/; # CONC
1557 close(OUTASM) || &tidy_up_and_die(1,"Failed writing to $out_asmf\n");
1558 close(INASM) || &tidy_up_and_die(1,"Failed reading from $in_asmf\n");
1561 sub mangle_powerpc_tailjump {
1563 local($maybe_more) = 1;
1564 while (($c =~ /\tlw?z? \d+,LC\.\.\d+\(2\)\n\tmtctr \d+\n\tbctr\n/) && $maybe_more)
1567 $lcsymb =~ s/(.*\n)*\tlw?z? \d+,LC\.\.(\d+)\(2\)\n\tmtctr \d+\n\tbctr\n(.*\n)*/\2/;
1568 # the checks for r1 and r2 are mostly paranoia...
1570 $r1 =~ s/(.*\n)*\tlw?z? (\d+),LC\.\.\d+\(2\)\n\tmtctr \d+\n\tbctr\n(.*\n)*/\2/;
1572 $r2 =~ s/(.*\n)*\tlw?z? \d+,LC\.\.(\d+)\(2\)\n\tmtctr (\d+)\n\tbctr\n(.*\n)*/\3/;
1575 $c =~ s/((.*\n)*)\tlw?z? \d+,LC\.\.\d+\(2\)\n\tmtctr \d+\n\tbctr\n((.*\n)*)/\1\tb $tocequiv{$lcsymb}\n\3/;
1583 sub tidy_up_and_die {
1584 local($return_val, $msg) = @_;
1586 exit (($return_val == 0) ? 0 : 1);