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1 | #define PERL_NO_GET_CONTEXT |
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2 | #include "EXTERN.h" |
3 | #include "perl.h" |
4 | #include "XSUB.h" |
5 | |
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6 | SV * |
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7 | DeadCode(pTHX) |
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8 | { |
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9 | #ifdef PURIFY |
10 | return Nullsv; |
11 | #else |
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12 | SV* sva; |
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13 | SV* sv; |
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14 | SV* ret = newRV_noinc((SV*)newAV()); |
15 | register SV* svend; |
16 | int tm = 0, tref = 0, ts = 0, ta = 0, tas = 0; |
17 | |
18 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { |
19 | svend = &sva[SvREFCNT(sva)]; |
20 | for (sv = sva + 1; sv < svend; ++sv) { |
21 | if (SvTYPE(sv) == SVt_PVCV) { |
22 | CV *cv = (CV*)sv; |
23 | AV* padlist = CvPADLIST(cv), *argav; |
24 | SV** svp; |
25 | SV** pad; |
26 | int i = 0, j, levelm, totm = 0, levelref, totref = 0; |
27 | int levels, tots = 0, levela, tota = 0, levelas, totas = 0; |
28 | int dumpit = 0; |
29 | |
30 | if (CvXSUB(sv)) { |
31 | continue; /* XSUB */ |
32 | } |
33 | if (!CvGV(sv)) { |
34 | continue; /* file-level scope. */ |
35 | } |
36 | if (!CvROOT(cv)) { |
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37 | /* PerlIO_printf(Perl_debug_log, " no root?!\n"); */ |
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38 | continue; /* autoloading stub. */ |
39 | } |
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40 | do_gvgv_dump(0, Perl_debug_log, "GVGV::GV", CvGV(sv)); |
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41 | if (CvDEPTH(cv)) { |
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42 | PerlIO_printf(Perl_debug_log, " busy\n"); |
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43 | continue; |
44 | } |
45 | svp = AvARRAY(padlist); |
46 | while (++i <= AvFILL(padlist)) { /* Depth. */ |
47 | SV **args; |
48 | |
49 | pad = AvARRAY((AV*)svp[i]); |
50 | argav = (AV*)pad[0]; |
51 | if (!argav || (SV*)argav == &PL_sv_undef) { |
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52 | PerlIO_printf(Perl_debug_log, " closure-template\n"); |
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53 | continue; |
54 | } |
55 | args = AvARRAY(argav); |
56 | levelm = levels = levelref = levelas = 0; |
57 | levela = sizeof(SV*) * (AvMAX(argav) + 1); |
58 | if (AvREAL(argav)) { |
59 | for (j = 0; j < AvFILL(argav); j++) { |
60 | if (SvROK(args[j])) { |
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61 | PerlIO_printf(Perl_debug_log, " ref in args!\n"); |
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62 | levelref++; |
63 | } |
64 | /* else if (SvPOK(args[j]) && SvPVX(args[j])) { */ |
65 | else if (SvTYPE(args[j]) >= SVt_PV && SvLEN(args[j])) { |
66 | levelas += SvLEN(args[j])/SvREFCNT(args[j]); |
67 | } |
68 | } |
69 | } |
70 | for (j = 1; j < AvFILL((AV*)svp[1]); j++) { /* Vars. */ |
71 | if (SvROK(pad[j])) { |
72 | levelref++; |
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73 | do_sv_dump(0, Perl_debug_log, pad[j], 0, 4, 0, 0); |
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74 | dumpit = 1; |
75 | } |
76 | /* else if (SvPOK(pad[j]) && SvPVX(pad[j])) { */ |
77 | else if (SvTYPE(pad[j]) >= SVt_PVAV) { |
78 | if (!SvPADMY(pad[j])) { |
79 | levelref++; |
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80 | do_sv_dump(0, Perl_debug_log, pad[j], 0, 4, 0, 0); |
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81 | dumpit = 1; |
82 | } |
83 | } |
84 | else if (SvTYPE(pad[j]) >= SVt_PV && SvLEN(pad[j])) { |
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85 | levels++; |
86 | levelm += SvLEN(pad[j])/SvREFCNT(pad[j]); |
87 | /* Dump(pad[j],4); */ |
88 | } |
89 | } |
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90 | PerlIO_printf(Perl_debug_log, " level %i: refs: %i, strings: %i in %i,\targsarray: %i, argsstrings: %i\n", |
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91 | i, levelref, levelm, levels, levela, levelas); |
92 | totm += levelm; |
93 | tota += levela; |
94 | totas += levelas; |
95 | tots += levels; |
96 | totref += levelref; |
97 | if (dumpit) |
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98 | do_sv_dump(0, Perl_debug_log, (SV*)cv, 0, 2, 0, 0); |
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99 | } |
100 | if (AvFILL(padlist) > 1) { |
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101 | PerlIO_printf(Perl_debug_log, " total: refs: %i, strings: %i in %i,\targsarrays: %i, argsstrings: %i\n", |
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102 | totref, totm, tots, tota, totas); |
103 | } |
104 | tref += totref; |
105 | tm += totm; |
106 | ts += tots; |
107 | ta += tota; |
108 | tas += totas; |
109 | } |
110 | } |
111 | } |
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112 | PerlIO_printf(Perl_debug_log, "total: refs: %i, strings: %i in %i\targsarray: %i, argsstrings: %i\n", tref, tm, ts, ta, tas); |
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113 | |
114 | return ret; |
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115 | #endif /* !PURIFY */ |
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116 | } |
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117 | |
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118 | #if defined(PERL_DEBUGGING_MSTATS) || defined(DEBUGGING_MSTATS) \ |
119 | || (defined(MYMALLOC) && !defined(PLAIN_MALLOC)) |
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120 | # define mstat(str) dump_mstats(str) |
121 | #else |
122 | # define mstat(str) \ |
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123 | PerlIO_printf(Perl_debug_log, "%s: perl not compiled with DEBUGGING_MSTATS\n",str); |
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124 | #endif |
125 | |
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126 | #if defined(PERL_DEBUGGING_MSTATS) || defined(DEBUGGING_MSTATS) \ |
127 | || (defined(MYMALLOC) && !defined(PLAIN_MALLOC)) |
128 | |
129 | /* Very coarse overestimate, 2-per-power-of-2, one more to determine NBUCKETS. */ |
130 | # define _NBUCKETS (2*8*IVSIZE+1) |
131 | |
132 | struct mstats_buffer |
133 | { |
134 | perl_mstats_t buffer; |
135 | UV buf[_NBUCKETS*4]; |
136 | }; |
137 | |
138 | void |
139 | _fill_mstats(struct mstats_buffer *b, int level) |
140 | { |
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141 | dTHX; |
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142 | b->buffer.nfree = b->buf; |
143 | b->buffer.ntotal = b->buf + _NBUCKETS; |
144 | b->buffer.bucket_mem_size = b->buf + 2*_NBUCKETS; |
145 | b->buffer.bucket_available_size = b->buf + 3*_NBUCKETS; |
146 | Zero(b->buf, (level ? 4*_NBUCKETS: 2*_NBUCKETS), unsigned long); |
147 | get_mstats(&(b->buffer), _NBUCKETS, level); |
148 | } |
149 | |
150 | void |
151 | fill_mstats(SV *sv, int level) |
152 | { |
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153 | dTHX; |
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154 | int nbuckets; |
155 | struct mstats_buffer buf; |
156 | |
157 | if (SvREADONLY(sv)) |
158 | croak("Cannot modify a readonly value"); |
159 | SvGROW(sv, sizeof(struct mstats_buffer)+1); |
160 | _fill_mstats((struct mstats_buffer*)SvPVX(sv),level); |
161 | SvCUR_set(sv, sizeof(struct mstats_buffer)); |
162 | *SvEND(sv) = '\0'; |
163 | SvPOK_only(sv); |
164 | } |
165 | |
166 | void |
167 | _mstats_to_hv(HV *hv, struct mstats_buffer *b, int level) |
168 | { |
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169 | dTHX; |
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170 | SV **svp; |
171 | int type; |
172 | |
173 | svp = hv_fetch(hv, "topbucket", 9, 1); |
174 | sv_setiv(*svp, b->buffer.topbucket); |
175 | |
176 | svp = hv_fetch(hv, "topbucket_ev", 12, 1); |
177 | sv_setiv(*svp, b->buffer.topbucket_ev); |
178 | |
179 | svp = hv_fetch(hv, "topbucket_odd", 13, 1); |
180 | sv_setiv(*svp, b->buffer.topbucket_odd); |
181 | |
182 | svp = hv_fetch(hv, "totfree", 7, 1); |
183 | sv_setiv(*svp, b->buffer.totfree); |
184 | |
185 | svp = hv_fetch(hv, "total", 5, 1); |
186 | sv_setiv(*svp, b->buffer.total); |
187 | |
188 | svp = hv_fetch(hv, "total_chain", 11, 1); |
189 | sv_setiv(*svp, b->buffer.total_chain); |
190 | |
191 | svp = hv_fetch(hv, "total_sbrk", 10, 1); |
192 | sv_setiv(*svp, b->buffer.total_sbrk); |
193 | |
194 | svp = hv_fetch(hv, "sbrks", 5, 1); |
195 | sv_setiv(*svp, b->buffer.sbrks); |
196 | |
197 | svp = hv_fetch(hv, "sbrk_good", 9, 1); |
198 | sv_setiv(*svp, b->buffer.sbrk_good); |
199 | |
200 | svp = hv_fetch(hv, "sbrk_slack", 10, 1); |
201 | sv_setiv(*svp, b->buffer.sbrk_slack); |
202 | |
203 | svp = hv_fetch(hv, "start_slack", 11, 1); |
204 | sv_setiv(*svp, b->buffer.start_slack); |
205 | |
206 | svp = hv_fetch(hv, "sbrked_remains", 14, 1); |
207 | sv_setiv(*svp, b->buffer.sbrked_remains); |
208 | |
209 | svp = hv_fetch(hv, "minbucket", 9, 1); |
210 | sv_setiv(*svp, b->buffer.minbucket); |
211 | |
212 | svp = hv_fetch(hv, "nbuckets", 8, 1); |
213 | sv_setiv(*svp, b->buffer.nbuckets); |
214 | |
215 | if (_NBUCKETS < b->buffer.nbuckets) |
216 | warn("FIXME: internal mstats buffer too short"); |
217 | |
218 | for (type = 0; type < (level ? 4 : 2); type++) { |
219 | UV *p, *p1; |
220 | AV *av; |
221 | int i; |
222 | static const char *types[4] = { |
223 | "free", "used", "mem_size", "available_size" |
224 | }; |
225 | |
226 | svp = hv_fetch(hv, types[type], strlen(types[type]), 1); |
227 | |
228 | if (SvOK(*svp) && !(SvROK(*svp) && SvTYPE(SvRV(*svp)) == SVt_PVAV)) |
229 | croak("Unexpected value for the key '%s' in the mstats hash", types[type]); |
230 | if (!SvOK(*svp)) { |
231 | av = newAV(); |
232 | SvUPGRADE(*svp, SVt_RV); |
233 | SvRV(*svp) = (SV*)av; |
234 | SvROK_on(*svp); |
235 | } else |
236 | av = (AV*)SvRV(*svp); |
237 | |
238 | av_extend(av, b->buffer.nbuckets - 1); |
239 | /* XXXX What is the official way to reduce the size of the array? */ |
240 | switch (type) { |
241 | case 0: |
242 | p = b->buffer.nfree; |
243 | break; |
244 | case 1: |
245 | p = b->buffer.ntotal; |
246 | p1 = b->buffer.nfree; |
247 | break; |
248 | case 2: |
249 | p = b->buffer.bucket_mem_size; |
250 | break; |
251 | case 3: |
252 | p = b->buffer.bucket_available_size; |
253 | break; |
254 | } |
255 | for (i = 0; i < b->buffer.nbuckets; i++) { |
256 | svp = av_fetch(av, i, 1); |
257 | if (type == 1) |
258 | sv_setiv(*svp, p[i]-p1[i]); |
259 | else |
260 | sv_setuv(*svp, p[i]); |
261 | } |
262 | } |
263 | } |
264 | void |
265 | mstats_fillhash(SV *sv, int level) |
266 | { |
267 | struct mstats_buffer buf; |
268 | |
269 | if (!(SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVHV)) |
270 | croak("Not a hash reference"); |
271 | _fill_mstats(&buf, level); |
272 | _mstats_to_hv((HV *)SvRV(sv), &buf, level); |
273 | } |
274 | void |
275 | mstats2hash(SV *sv, SV *rv, int level) |
276 | { |
277 | if (!(SvROK(rv) && SvTYPE(SvRV(rv)) == SVt_PVHV)) |
278 | croak("Not a hash reference"); |
279 | if (!SvPOK(sv)) |
280 | croak("Undefined value when expecting mstats buffer"); |
281 | if (SvCUR(sv) != sizeof(struct mstats_buffer)) |
282 | croak("Wrong size for a value with a mstats buffer"); |
283 | _mstats_to_hv((HV *)SvRV(rv), (struct mstats_buffer*)SvPVX(sv), level); |
284 | } |
285 | #else /* !( defined(PERL_DEBUGGING_MSTATS) || defined(DEBUGGING_MSTATS) \ ) */ |
286 | void |
287 | fill_mstats(SV *sv, int level) |
288 | { |
289 | croak("Cannot report mstats without Perl malloc"); |
290 | } |
291 | void |
292 | mstats_fillhash(SV *sv, int level) |
293 | { |
294 | croak("Cannot report mstats without Perl malloc"); |
295 | } |
296 | void |
297 | mstats2hash(SV *sv, SV *rv, int level) |
298 | { |
299 | croak("Cannot report mstats without Perl malloc"); |
300 | } |
301 | #endif /* defined(PERL_DEBUGGING_MSTATS) || defined(DEBUGGING_MSTATS)... */ |
302 | |
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303 | #define _CvGV(cv) \ |
304 | (SvROK(cv) && (SvTYPE(SvRV(cv))==SVt_PVCV) \ |
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305 | ? SvREFCNT_inc(CvGV((CV*)SvRV(cv))) : &PL_sv_undef) |
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306 | |
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307 | MODULE = Devel::Peek PACKAGE = Devel::Peek |
308 | |
309 | void |
310 | mstat(str="Devel::Peek::mstat: ") |
311 | char *str |
312 | |
313 | void |
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314 | fill_mstats(SV *sv, int level = 0) |
315 | |
316 | void |
317 | mstats_fillhash(SV *sv, int level = 0) |
318 | PROTOTYPE: \%;$ |
319 | |
320 | void |
321 | mstats2hash(SV *sv, SV *rv, int level = 0) |
322 | PROTOTYPE: $\%;$ |
323 | |
324 | void |
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325 | Dump(sv,lim=4) |
326 | SV * sv |
327 | I32 lim |
328 | PPCODE: |
329 | { |
330 | SV *pv_lim_sv = perl_get_sv("Devel::Peek::pv_limit", FALSE); |
331 | STRLEN pv_lim = pv_lim_sv ? SvIV(pv_lim_sv) : 0; |
332 | SV *dumpop = perl_get_sv("Devel::Peek::dump_ops", FALSE); |
333 | I32 save_dumpindent = PL_dumpindent; |
334 | PL_dumpindent = 2; |
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335 | do_sv_dump(0, Perl_debug_log, sv, 0, lim, dumpop && SvTRUE(dumpop), pv_lim); |
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336 | PL_dumpindent = save_dumpindent; |
337 | } |
338 | |
339 | void |
340 | DumpArray(lim,...) |
341 | I32 lim |
342 | PPCODE: |
343 | { |
344 | long i; |
345 | SV *pv_lim_sv = perl_get_sv("Devel::Peek::pv_limit", FALSE); |
346 | STRLEN pv_lim = pv_lim_sv ? SvIV(pv_lim_sv) : 0; |
347 | SV *dumpop = perl_get_sv("Devel::Peek::dump_ops", FALSE); |
348 | I32 save_dumpindent = PL_dumpindent; |
349 | PL_dumpindent = 2; |
350 | |
351 | for (i=1; i<items; i++) { |
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352 | PerlIO_printf(Perl_debug_log, "Elt No. %ld 0x%"UVxf"\n", i - 1, PTR2UV(ST(i))); |
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353 | do_sv_dump(0, Perl_debug_log, ST(i), 0, lim, dumpop && SvTRUE(dumpop), pv_lim); |
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354 | } |
355 | PL_dumpindent = save_dumpindent; |
356 | } |
357 | |
358 | void |
359 | DumpProg() |
360 | PPCODE: |
361 | { |
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362 | warn("dumpindent is %d", (int)PL_dumpindent); |
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363 | if (PL_main_root) |
364 | op_dump(PL_main_root); |
365 | } |
366 | |
367 | I32 |
368 | SvREFCNT(sv) |
369 | SV * sv |
370 | |
371 | # PPCODE needed since otherwise sv_2mortal is inserted that will kill the value. |
372 | |
373 | SV * |
374 | SvREFCNT_inc(sv) |
375 | SV * sv |
376 | PPCODE: |
377 | { |
378 | RETVAL = SvREFCNT_inc(sv); |
379 | PUSHs(RETVAL); |
380 | } |
381 | |
382 | # PPCODE needed since by default it is void |
383 | |
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384 | void |
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385 | SvREFCNT_dec(sv) |
386 | SV * sv |
387 | PPCODE: |
388 | { |
389 | SvREFCNT_dec(sv); |
390 | PUSHs(sv); |
391 | } |
392 | |
393 | SV * |
394 | DeadCode() |
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395 | CODE: |
396 | RETVAL = DeadCode(aTHX); |
397 | OUTPUT: |
398 | RETVAL |
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399 | |
400 | MODULE = Devel::Peek PACKAGE = Devel::Peek PREFIX = _ |
401 | |
402 | SV * |
403 | _CvGV(cv) |
404 | SV *cv |