Commit | Line | Data |
146174a9 |
1 | #define PERL_NO_GET_CONTEXT |
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2 | #include "EXTERN.h" |
3 | #include "perl.h" |
4 | #include "XSUB.h" |
5 | |
94277a97 |
6 | /* define DBG_SUB to cause a warning on each subroutine entry. */ |
7399586d |
7 | /*#define DBG_SUB 1 */ |
94277a97 |
8 | |
9 | /* define DBG_TIMER to cause a warning when the timer is turned on and off. */ |
10 | /*#define DBG_TIMER 1 */ |
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11 | |
ae7638f4 |
12 | #ifdef DEBUGGING |
13 | #define ASSERT(x) assert(x) |
14 | #else |
15 | #define ASSERT(x) |
16 | #endif |
17 | |
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18 | #ifdef DBG_SUB |
94277a97 |
19 | # define DBG_SUB_NOTIFY(A) dprof_dbg_sub_notify(A) |
20 | void |
21 | dprof_dbg_sub_notify(SV *Sub) { |
22 | CV *cv = INT2PTR(CV*,SvIVX(Sub)); |
23 | GV *gv = cv ? CvGV(cv) : NULL; |
24 | if (cv && gv) { |
25 | warn("XS DBsub(%s::%s)\n", |
26 | ((GvSTASH(gv) && HvNAME(GvSTASH(gv))) ? |
27 | HvNAME(GvSTASH(gv)) : "(null)"), |
28 | GvNAME(gv)); |
29 | } else { |
30 | warn("XS DBsub(unknown) at %x", Sub); |
31 | } |
32 | } |
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33 | #else |
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34 | # define DBG_SUB_NOTIFY(A) /* nothing */ |
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35 | #endif |
36 | |
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37 | |
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38 | #ifdef DBG_TIMER |
146174a9 |
39 | # define DBG_TIMER_NOTIFY(A) warn(A) |
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40 | #else |
41 | # define DBG_TIMER_NOTIFY(A) /* nothing */ |
42 | #endif |
43 | |
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44 | /* HZ == clock ticks per second */ |
45 | #ifdef VMS |
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46 | # define HZ ((I32)CLK_TCK) |
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47 | # define DPROF_HZ HZ |
48 | # include <starlet.h> /* prototype for sys$gettim() */ |
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49 | # include <lib$routines.h> |
146174a9 |
50 | # define Times(ptr) (dprof_times(aTHX_ ptr)) |
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51 | #else |
52 | # ifndef HZ |
53 | # ifdef CLK_TCK |
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54 | # define HZ ((I32)CLK_TCK) |
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55 | # else |
56 | # define HZ 60 |
57 | # endif |
58 | # endif |
59 | # ifdef OS2 /* times() has significant overhead */ |
146174a9 |
60 | # define Times(ptr) (dprof_times(aTHX_ ptr)) |
583a019e |
61 | # define INCL_DOSPROFILE |
62 | # define INCL_DOSERRORS |
63 | # include <os2.h> |
64 | # define toLongLong(arg) (*(long long*)&(arg)) |
146174a9 |
65 | # define DPROF_HZ g_dprof_ticks |
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66 | # else |
67 | # define Times(ptr) (times(ptr)) |
68 | # define DPROF_HZ HZ |
69 | # endif |
70 | #endif |
71 | |
72 | XS(XS_Devel__DProf_END); /* used by prof_mark() */ |
73 | |
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74 | /* Everything is built on times(2). See its manpage for a description |
75 | * of the timings. |
76 | */ |
77 | |
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78 | union prof_any { |
79 | clock_t tms_utime; /* cpu time spent in user space */ |
80 | clock_t tms_stime; /* cpu time spent in system */ |
81 | clock_t realtime; /* elapsed real time, in ticks */ |
82 | char *name; |
83 | U32 id; |
84 | opcode ptype; |
85 | }; |
86 | |
87 | typedef union prof_any PROFANY; |
88 | |
146174a9 |
89 | typedef struct { |
90 | U32 dprof_ticks; |
91 | char* out_file_name; /* output file (defaults to tmon.out) */ |
92 | PerlIO* fp; /* pointer to tmon.out file */ |
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93 | Off_t TIMES_LOCATION; /* Where in the file to store the time totals */ |
146174a9 |
94 | int SAVE_STACK; /* How much data to buffer until end of run */ |
95 | int prof_pid; /* pid of profiled process */ |
96 | struct tms prof_start; |
97 | struct tms prof_end; |
98 | clock_t rprof_start; /* elapsed real time ticks */ |
99 | clock_t rprof_end; |
100 | clock_t wprof_u; |
101 | clock_t wprof_s; |
102 | clock_t wprof_r; |
103 | clock_t otms_utime; |
104 | clock_t otms_stime; |
105 | clock_t orealtime; |
106 | PROFANY* profstack; |
107 | int profstack_max; |
108 | int profstack_ix; |
109 | HV* cv_hash; |
110 | U32 total; |
111 | U32 lastid; |
112 | U32 default_perldb; |
425d70b4 |
113 | UV depth; |
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114 | #ifdef OS2 |
115 | ULONG frequ; |
116 | long long start_cnt; |
117 | #endif |
118 | #ifdef PERL_IMPLICIT_CONTEXT |
119 | # define register |
120 | pTHX; |
121 | # undef register |
122 | #endif |
123 | } prof_state_t; |
124 | |
125 | prof_state_t g_prof_state; |
126 | |
127 | #define g_dprof_ticks g_prof_state.dprof_ticks |
128 | #define g_out_file_name g_prof_state.out_file_name |
129 | #define g_fp g_prof_state.fp |
130 | #define g_TIMES_LOCATION g_prof_state.TIMES_LOCATION |
131 | #define g_SAVE_STACK g_prof_state.SAVE_STACK |
132 | #define g_prof_pid g_prof_state.prof_pid |
133 | #define g_prof_start g_prof_state.prof_start |
134 | #define g_prof_end g_prof_state.prof_end |
135 | #define g_rprof_start g_prof_state.rprof_start |
136 | #define g_rprof_end g_prof_state.rprof_end |
137 | #define g_wprof_u g_prof_state.wprof_u |
138 | #define g_wprof_s g_prof_state.wprof_s |
139 | #define g_wprof_r g_prof_state.wprof_r |
140 | #define g_otms_utime g_prof_state.otms_utime |
141 | #define g_otms_stime g_prof_state.otms_stime |
142 | #define g_orealtime g_prof_state.orealtime |
143 | #define g_profstack g_prof_state.profstack |
144 | #define g_profstack_max g_prof_state.profstack_max |
145 | #define g_profstack_ix g_prof_state.profstack_ix |
146 | #define g_cv_hash g_prof_state.cv_hash |
147 | #define g_total g_prof_state.total |
148 | #define g_lastid g_prof_state.lastid |
149 | #define g_default_perldb g_prof_state.default_perldb |
150 | #define g_depth g_prof_state.depth |
151 | #ifdef PERL_IMPLICIT_CONTEXT |
152 | # define g_THX g_prof_state.aTHX |
153 | #endif |
154 | #ifdef OS2 |
155 | # define g_frequ g_prof_state.frequ |
156 | # define g_start_cnt g_prof_state.start_cnt |
157 | #endif |
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158 | |
146174a9 |
159 | clock_t |
160 | dprof_times(pTHX_ struct tms *t) |
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161 | { |
146174a9 |
162 | #ifdef OS2 |
163 | ULONG rc; |
164 | QWORD cnt; |
cb50131a |
165 | STRLEN n_a; |
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166 | |
167 | if (!g_frequ) { |
168 | if (CheckOSError(DosTmrQueryFreq(&g_frequ))) |
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169 | croak("DosTmrQueryFreq: %s", SvPV(perl_get_sv("!",TRUE),n_a)); |
146174a9 |
170 | else |
171 | g_frequ = g_frequ/DPROF_HZ; /* count per tick */ |
172 | if (CheckOSError(DosTmrQueryTime(&cnt))) |
173 | croak("DosTmrQueryTime: %s", |
cb50131a |
174 | SvPV(perl_get_sv("!",TRUE), n_a)); |
146174a9 |
175 | g_start_cnt = toLongLong(cnt); |
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176 | } |
146174a9 |
177 | |
178 | if (CheckOSError(DosTmrQueryTime(&cnt))) |
cb50131a |
179 | croak("DosTmrQueryTime: %s", SvPV(perl_get_sv("!",TRUE), n_a)); |
146174a9 |
180 | t->tms_stime = 0; |
181 | return (t->tms_utime = (toLongLong(cnt) - g_start_cnt)/g_frequ); |
182 | #else /* !OS2 */ |
183 | # ifdef VMS |
184 | clock_t retval; |
185 | /* Get wall time and convert to 10 ms intervals to |
186 | * produce the return value dprof expects */ |
187 | # if defined(__DECC) && defined (__ALPHA) |
188 | # include <ints.h> |
189 | uint64 vmstime; |
190 | _ckvmssts(sys$gettim(&vmstime)); |
191 | vmstime /= 100000; |
192 | retval = vmstime & 0x7fffffff; |
193 | # else |
194 | /* (Older hw or ccs don't have an atomic 64-bit type, so we |
195 | * juggle 32-bit ints (and a float) to produce a time_t result |
196 | * with minimal loss of information.) */ |
197 | long int vmstime[2],remainder,divisor = 100000; |
198 | _ckvmssts(sys$gettim((unsigned long int *)vmstime)); |
199 | vmstime[1] &= 0x7fff; /* prevent overflow in EDIV */ |
200 | _ckvmssts(lib$ediv(&divisor,vmstime,(long int *)&retval,&remainder)); |
201 | # endif |
202 | /* Fill in the struct tms using the CRTL routine . . .*/ |
203 | times((tbuffer_t *)t); |
204 | return (clock_t) retval; |
205 | # else /* !VMS && !OS2 */ |
206 | return times(t); |
207 | # endif |
208 | #endif |
209 | } |
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210 | |
211 | static void |
146174a9 |
212 | prof_dumpa(pTHX_ opcode ptype, U32 id) |
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213 | { |
146174a9 |
214 | if (ptype == OP_LEAVESUB) { |
215 | PerlIO_printf(g_fp,"- %"UVxf"\n", (UV)id); |
216 | } |
217 | else if(ptype == OP_ENTERSUB) { |
218 | PerlIO_printf(g_fp,"+ %"UVxf"\n", (UV)id); |
219 | } |
220 | else if(ptype == OP_GOTO) { |
221 | PerlIO_printf(g_fp,"* %"UVxf"\n", (UV)id); |
222 | } |
223 | else if(ptype == OP_DIE) { |
224 | PerlIO_printf(g_fp,"/ %"UVxf"\n", (UV)id); |
225 | } |
226 | else { |
227 | PerlIO_printf(g_fp,"Profiler unknown prof code %d\n", ptype); |
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228 | } |
229 | } |
230 | |
231 | static void |
146174a9 |
232 | prof_dumps(pTHX_ U32 id, char *pname, char *gname) |
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233 | { |
146174a9 |
234 | PerlIO_printf(g_fp,"& %"UVxf" %s %s\n", (UV)id, pname, gname); |
583a019e |
235 | } |
236 | |
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237 | static void |
146174a9 |
238 | prof_dumpt(pTHX_ long tms_utime, long tms_stime, long realtime) |
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239 | { |
146174a9 |
240 | PerlIO_printf(g_fp,"@ %ld %ld %ld\n", tms_utime, tms_stime, realtime); |
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241 | } |
242 | |
243 | static void |
146174a9 |
244 | prof_dump_until(pTHX_ long ix) |
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245 | { |
246 | long base = 0; |
247 | struct tms t1, t2; |
248 | clock_t realtime1, realtime2; |
249 | |
250 | realtime1 = Times(&t1); |
251 | |
146174a9 |
252 | while (base < ix) { |
253 | opcode ptype = g_profstack[base++].ptype; |
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254 | if (ptype == OP_TIME) { |
146174a9 |
255 | long tms_utime = g_profstack[base++].tms_utime; |
256 | long tms_stime = g_profstack[base++].tms_stime; |
257 | long realtime = g_profstack[base++].realtime; |
258 | |
259 | prof_dumpt(aTHX_ tms_utime, tms_stime, realtime); |
260 | } |
261 | else if (ptype == OP_GV) { |
262 | U32 id = g_profstack[base++].id; |
263 | char *pname = g_profstack[base++].name; |
264 | char *gname = g_profstack[base++].name; |
265 | |
266 | prof_dumps(aTHX_ id, pname, gname); |
267 | } |
268 | else { |
269 | U32 id = g_profstack[base++].id; |
270 | prof_dumpa(aTHX_ ptype, id); |
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271 | } |
272 | } |
146174a9 |
273 | PerlIO_flush(g_fp); |
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274 | realtime2 = Times(&t2); |
275 | if (realtime2 != realtime1 || t1.tms_utime != t2.tms_utime |
276 | || t1.tms_stime != t2.tms_stime) { |
146174a9 |
277 | g_wprof_r += realtime2 - realtime1; |
278 | g_wprof_u += t2.tms_utime - t1.tms_utime; |
279 | g_wprof_s += t2.tms_stime - t1.tms_stime; |
280 | |
281 | PerlIO_printf(g_fp,"+ & Devel::DProf::write\n"); |
282 | PerlIO_printf(g_fp,"@ %"IVdf" %"IVdf" %"IVdf"\n", |
283 | /* The (IV) casts are one possibility: |
284 | * the Painfully Correct Way would be to |
285 | * have Clock_t_f. */ |
286 | (IV)(t2.tms_utime - t1.tms_utime), |
287 | (IV)(t2.tms_stime - t1.tms_stime), |
288 | (IV)(realtime2 - realtime1)); |
289 | PerlIO_printf(g_fp,"- & Devel::DProf::write\n"); |
290 | g_otms_utime = t2.tms_utime; |
291 | g_otms_stime = t2.tms_stime; |
292 | g_orealtime = realtime2; |
293 | PerlIO_flush(g_fp); |
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294 | } |
295 | } |
296 | |
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297 | static void |
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298 | prof_mark(pTHX_ opcode ptype) |
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299 | { |
146174a9 |
300 | struct tms t; |
301 | clock_t realtime, rdelta, udelta, sdelta; |
146174a9 |
302 | U32 id; |
303 | SV *Sub = GvSV(PL_DBsub); /* name of current sub */ |
304 | |
305 | if (g_SAVE_STACK) { |
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306 | if (g_profstack_ix + 10 > g_profstack_max) { |
146174a9 |
307 | g_profstack_max = g_profstack_max * 3 / 2; |
308 | Renew(g_profstack, g_profstack_max, PROFANY); |
309 | } |
310 | } |
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311 | |
146174a9 |
312 | realtime = Times(&t); |
313 | rdelta = realtime - g_orealtime; |
314 | udelta = t.tms_utime - g_otms_utime; |
315 | sdelta = t.tms_stime - g_otms_stime; |
316 | if (rdelta || udelta || sdelta) { |
317 | if (g_SAVE_STACK) { |
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318 | ASSERT(g_profstack_ix + 4 <= g_profstack_max); |
146174a9 |
319 | g_profstack[g_profstack_ix++].ptype = OP_TIME; |
320 | g_profstack[g_profstack_ix++].tms_utime = udelta; |
321 | g_profstack[g_profstack_ix++].tms_stime = sdelta; |
322 | g_profstack[g_profstack_ix++].realtime = rdelta; |
323 | } |
324 | else { /* Write it to disk now so's not to eat up core */ |
325 | if (g_prof_pid == (int)getpid()) { |
326 | prof_dumpt(aTHX_ udelta, sdelta, rdelta); |
327 | PerlIO_flush(g_fp); |
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328 | } |
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329 | } |
146174a9 |
330 | g_orealtime = realtime; |
331 | g_otms_stime = t.tms_stime; |
332 | g_otms_utime = t.tms_utime; |
333 | } |
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334 | |
146174a9 |
335 | { |
336 | SV **svp; |
337 | char *gname, *pname; |
338 | CV *cv; |
339 | |
340 | cv = INT2PTR(CV*,SvIVX(Sub)); |
341 | svp = hv_fetch(g_cv_hash, (char*)&cv, sizeof(CV*), TRUE); |
342 | if (!SvOK(*svp)) { |
343 | GV *gv = CvGV(cv); |
344 | |
345 | sv_setiv(*svp, id = ++g_lastid); |
346 | pname = ((GvSTASH(gv) && HvNAME(GvSTASH(gv))) |
347 | ? HvNAME(GvSTASH(gv)) |
348 | : "(null)"); |
349 | gname = GvNAME(gv); |
350 | if (CvXSUB(cv) == XS_Devel__DProf_END) |
351 | return; |
352 | if (g_SAVE_STACK) { /* Store it for later recording -JH */ |
ae7638f4 |
353 | ASSERT(g_profstack_ix + 4 <= g_profstack_max); |
146174a9 |
354 | g_profstack[g_profstack_ix++].ptype = OP_GV; |
355 | g_profstack[g_profstack_ix++].id = id; |
356 | g_profstack[g_profstack_ix++].name = pname; |
357 | g_profstack[g_profstack_ix++].name = gname; |
358 | } |
359 | else { /* Write it to disk now so's not to eat up core */ |
360 | /* Only record the parent's info */ |
361 | if (g_prof_pid == (int)getpid()) { |
362 | prof_dumps(aTHX_ id, pname, gname); |
363 | PerlIO_flush(g_fp); |
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364 | } |
146174a9 |
365 | else |
366 | PL_perldb = 0; /* Do not debug the kid. */ |
583a019e |
367 | } |
368 | } |
146174a9 |
369 | else { |
370 | id = SvIV(*svp); |
371 | } |
372 | } |
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373 | |
146174a9 |
374 | g_total++; |
375 | if (g_SAVE_STACK) { /* Store it for later recording -JH */ |
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376 | ASSERT(g_profstack_ix + 2 <= g_profstack_max); |
146174a9 |
377 | g_profstack[g_profstack_ix++].ptype = ptype; |
378 | g_profstack[g_profstack_ix++].id = id; |
379 | |
380 | /* Only record the parent's info */ |
381 | if (g_SAVE_STACK < g_profstack_ix) { |
382 | if (g_prof_pid == (int)getpid()) |
383 | prof_dump_until(aTHX_ g_profstack_ix); |
384 | else |
385 | PL_perldb = 0; /* Do not debug the kid. */ |
386 | g_profstack_ix = 0; |
387 | } |
388 | } |
389 | else { /* Write it to disk now so's not to eat up core */ |
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390 | |
146174a9 |
391 | /* Only record the parent's info */ |
392 | if (g_prof_pid == (int)getpid()) { |
393 | prof_dumpa(aTHX_ ptype, id); |
394 | PerlIO_flush(g_fp); |
395 | } |
396 | else |
397 | PL_perldb = 0; /* Do not debug the kid. */ |
398 | } |
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399 | } |
400 | |
583a019e |
401 | #ifdef PL_NEEDED |
402 | # define defstash PL_defstash |
403 | #endif |
404 | |
405 | /* Counts overhead of prof_mark and extra XS call. */ |
406 | static void |
146174a9 |
407 | test_time(pTHX_ clock_t *r, clock_t *u, clock_t *s) |
583a019e |
408 | { |
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409 | CV *cv = perl_get_cv("Devel::DProf::NONESUCH_noxs", FALSE); |
410 | int i, j, k = 0; |
146174a9 |
411 | HV *oldstash = PL_curstash; |
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412 | struct tms t1, t2; |
9c5ffd7c |
413 | clock_t realtime1 = 0, realtime2 = 0; |
146174a9 |
414 | U32 ototal = g_total; |
415 | U32 ostack = g_SAVE_STACK; |
416 | U32 operldb = PL_perldb; |
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417 | |
146174a9 |
418 | g_SAVE_STACK = 1000000; |
583a019e |
419 | realtime1 = Times(&t1); |
420 | |
421 | while (k < 2) { |
422 | i = 0; |
423 | /* Disable debugging of perl_call_sv on second pass: */ |
146174a9 |
424 | PL_curstash = (k == 0 ? PL_defstash : PL_debstash); |
425 | PL_perldb = g_default_perldb; |
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426 | while (++i <= 100) { |
427 | j = 0; |
146174a9 |
428 | g_profstack_ix = 0; /* Do not let the stack grow */ |
583a019e |
429 | while (++j <= 100) { |
146174a9 |
430 | /* prof_mark(aTHX_ OP_ENTERSUB); */ |
583a019e |
431 | |
146174a9 |
432 | PUSHMARK(PL_stack_sp); |
433 | perl_call_sv((SV*)cv, G_SCALAR); |
434 | PL_stack_sp--; |
435 | /* prof_mark(aTHX_ OP_LEAVESUB); */ |
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436 | } |
437 | } |
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438 | PL_curstash = oldstash; |
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439 | if (k == 0) { /* Put time with debugging */ |
440 | realtime2 = Times(&t2); |
441 | *r = realtime2 - realtime1; |
442 | *u = t2.tms_utime - t1.tms_utime; |
443 | *s = t2.tms_stime - t1.tms_stime; |
146174a9 |
444 | } |
445 | else { /* Subtract time without debug */ |
583a019e |
446 | realtime1 = Times(&t1); |
447 | *r -= realtime1 - realtime2; |
448 | *u -= t1.tms_utime - t2.tms_utime; |
449 | *s -= t1.tms_stime - t2.tms_stime; |
450 | } |
451 | k++; |
452 | } |
146174a9 |
453 | g_total = ototal; |
454 | g_SAVE_STACK = ostack; |
455 | PL_perldb = operldb; |
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456 | } |
457 | |
458 | static void |
146174a9 |
459 | prof_recordheader(pTHX) |
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460 | { |
146174a9 |
461 | clock_t r, u, s; |
462 | |
463 | /* g_fp is opened in the BOOT section */ |
464 | PerlIO_printf(g_fp, "#fOrTyTwO\n"); |
465 | PerlIO_printf(g_fp, "$hz=%"IVdf";\n", (IV)DPROF_HZ); |
466 | PerlIO_printf(g_fp, "$XS_VERSION='DProf %s';\n", XS_VERSION); |
467 | PerlIO_printf(g_fp, "# All values are given in HZ\n"); |
468 | test_time(aTHX_ &r, &u, &s); |
469 | PerlIO_printf(g_fp, |
470 | "$over_utime=%"IVdf"; $over_stime=%"IVdf"; $over_rtime=%"IVdf";\n", |
471 | /* The (IV) casts are one possibility: |
472 | * the Painfully Correct Way would be to |
473 | * have Clock_t_f. */ |
474 | (IV)u, (IV)s, (IV)r); |
475 | PerlIO_printf(g_fp, "$over_tests=10000;\n"); |
476 | |
477 | g_TIMES_LOCATION = PerlIO_tell(g_fp); |
478 | |
479 | /* Pad with whitespace. */ |
480 | /* This should be enough even for very large numbers. */ |
481 | PerlIO_printf(g_fp, "%*s\n", 240 , ""); |
482 | |
483 | PerlIO_printf(g_fp, "\n"); |
484 | PerlIO_printf(g_fp, "PART2\n"); |
485 | |
486 | PerlIO_flush(g_fp); |
583a019e |
487 | } |
488 | |
489 | static void |
146174a9 |
490 | prof_record(pTHX) |
583a019e |
491 | { |
146174a9 |
492 | /* g_fp is opened in the BOOT section */ |
493 | |
494 | /* Now that we know the runtimes, fill them in at the recorded |
495 | location -JH */ |
583a019e |
496 | |
146174a9 |
497 | if (g_SAVE_STACK) { |
498 | prof_dump_until(aTHX_ g_profstack_ix); |
499 | } |
500 | PerlIO_seek(g_fp, g_TIMES_LOCATION, SEEK_SET); |
501 | /* Write into reserved 240 bytes: */ |
502 | PerlIO_printf(g_fp, |
503 | "$rrun_utime=%"IVdf"; $rrun_stime=%"IVdf"; $rrun_rtime=%"IVdf";", |
504 | /* The (IV) casts are one possibility: |
505 | * the Painfully Correct Way would be to |
506 | * have Clock_t_f. */ |
507 | (IV)(g_prof_end.tms_utime-g_prof_start.tms_utime-g_wprof_u), |
508 | (IV)(g_prof_end.tms_stime-g_prof_start.tms_stime-g_wprof_s), |
509 | (IV)(g_rprof_end-g_rprof_start-g_wprof_r)); |
510 | PerlIO_printf(g_fp, "\n$total_marks=%"IVdf, (IV)g_total); |
583a019e |
511 | |
146174a9 |
512 | PerlIO_close(g_fp); |
583a019e |
513 | } |
514 | |
515 | #define NONESUCH() |
516 | |
583a019e |
517 | static void |
d7b9cf63 |
518 | check_depth(pTHX_ void *foo) |
583a019e |
519 | { |
4b19af01 |
520 | U32 need_depth = PTR2UV(foo); |
146174a9 |
521 | if (need_depth != g_depth) { |
522 | if (need_depth > g_depth) { |
583a019e |
523 | warn("garbled call depth when profiling"); |
146174a9 |
524 | } |
525 | else { |
425d70b4 |
526 | IV marks = g_depth - need_depth; |
583a019e |
527 | |
146174a9 |
528 | /* warn("Check_depth: got %d, expected %d\n", g_depth, need_depth); */ |
583a019e |
529 | while (marks--) { |
146174a9 |
530 | prof_mark(aTHX_ OP_DIE); |
583a019e |
531 | } |
146174a9 |
532 | g_depth = need_depth; |
583a019e |
533 | } |
534 | } |
535 | } |
536 | |
537 | #define for_real |
538 | #ifdef for_real |
539 | |
540 | XS(XS_DB_sub) |
541 | { |
c6c619a9 |
542 | dMARK; |
146174a9 |
543 | dORIGMARK; |
544 | SV *Sub = GvSV(PL_DBsub); /* name of current sub */ |
545 | |
546 | #ifdef PERL_IMPLICIT_CONTEXT |
547 | /* profile only the interpreter that loaded us */ |
548 | if (g_THX != aTHX) { |
549 | PUSHMARK(ORIGMARK); |
d781cccd |
550 | perl_call_sv(INT2PTR(SV*,SvIV(Sub)), GIMME_V | G_NODEBUG); |
146174a9 |
551 | } |
552 | else |
553 | #endif |
554 | { |
555 | HV *oldstash = PL_curstash; |
583a019e |
556 | |
94277a97 |
557 | DBG_SUB_NOTIFY(Sub); |
583a019e |
558 | |
a6f8e609 |
559 | SAVEDESTRUCTOR_X(check_depth, INT2PTR(void*,g_depth)); |
146174a9 |
560 | g_depth++; |
583a019e |
561 | |
146174a9 |
562 | prof_mark(aTHX_ OP_ENTERSUB); |
563 | PUSHMARK(ORIGMARK); |
d781cccd |
564 | perl_call_sv(INT2PTR(SV*,SvIV(Sub)), GIMME_V | G_NODEBUG); |
8063af02 |
565 | PL_curstash = oldstash; |
146174a9 |
566 | prof_mark(aTHX_ OP_LEAVESUB); |
567 | g_depth--; |
568 | } |
569 | return; |
583a019e |
570 | } |
571 | |
572 | XS(XS_DB_goto) |
573 | { |
146174a9 |
574 | #ifdef PERL_IMPLICIT_CONTEXT |
575 | if (g_THX == aTHX) |
576 | #endif |
577 | { |
578 | prof_mark(aTHX_ OP_GOTO); |
583a019e |
579 | return; |
146174a9 |
580 | } |
583a019e |
581 | } |
582 | |
583 | #endif /* for_real */ |
584 | |
585 | #ifdef testing |
586 | |
587 | MODULE = Devel::DProf PACKAGE = DB |
588 | |
589 | void |
590 | sub(...) |
146174a9 |
591 | PPCODE: |
592 | { |
583a019e |
593 | dORIGMARK; |
146174a9 |
594 | HV *oldstash = PL_curstash; |
595 | SV *Sub = GvSV(PL_DBsub); /* name of current sub */ |
583a019e |
596 | /* SP -= items; added by xsubpp */ |
94277a97 |
597 | DBG_SUB_NOTIFY(Sub); |
583a019e |
598 | |
146174a9 |
599 | sv_setiv(PL_DBsingle, 0); /* disable DB single-stepping */ |
583a019e |
600 | |
146174a9 |
601 | prof_mark(aTHX_ OP_ENTERSUB); |
602 | PUSHMARK(ORIGMARK); |
583a019e |
603 | |
146174a9 |
604 | PL_curstash = PL_debstash; /* To disable debugging of perl_call_sv */ |
d781cccd |
605 | perl_call_sv(Sub, GIMME_V); |
146174a9 |
606 | PL_curstash = oldstash; |
583a019e |
607 | |
146174a9 |
608 | prof_mark(aTHX_ OP_LEAVESUB); |
583a019e |
609 | SPAGAIN; |
610 | /* PUTBACK; added by xsubpp */ |
146174a9 |
611 | } |
583a019e |
612 | |
613 | #endif /* testing */ |
614 | |
615 | MODULE = Devel::DProf PACKAGE = Devel::DProf |
616 | |
617 | void |
618 | END() |
146174a9 |
619 | PPCODE: |
620 | { |
621 | if (PL_DBsub) { |
622 | /* maybe the process forked--we want only |
623 | * the parent's profile. |
624 | */ |
625 | if ( |
626 | #ifdef PERL_IMPLICIT_CONTEXT |
627 | g_THX == aTHX && |
628 | #endif |
629 | g_prof_pid == (int)getpid()) |
630 | { |
631 | g_rprof_end = Times(&g_prof_end); |
632 | DBG_TIMER_NOTIFY("Profiler timer is off.\n"); |
633 | prof_record(aTHX); |
634 | } |
635 | } |
636 | } |
583a019e |
637 | |
638 | void |
639 | NONESUCH() |
640 | |
641 | BOOT: |
146174a9 |
642 | { |
643 | g_TIMES_LOCATION = 42; |
644 | g_SAVE_STACK = 1<<14; |
645 | g_profstack_max = 128; |
646 | #ifdef PERL_IMPLICIT_CONTEXT |
647 | g_THX = aTHX; |
648 | #endif |
649 | |
583a019e |
650 | /* Before we go anywhere make sure we were invoked |
651 | * properly, else we'll dump core. |
652 | */ |
146174a9 |
653 | if (!PL_DBsub) |
654 | croak("DProf: run perl with -d to use DProf.\n"); |
583a019e |
655 | |
656 | /* When we hook up the XS DB::sub we'll be redefining |
657 | * the DB::sub from the PM file. Turn off warnings |
658 | * while we do this. |
659 | */ |
660 | { |
7c436af3 |
661 | bool warn_tmp = PL_dowarn; |
146174a9 |
662 | PL_dowarn = 0; |
663 | newXS("DB::sub", XS_DB_sub, file); |
664 | newXS("DB::goto", XS_DB_goto, file); |
665 | PL_dowarn = warn_tmp; |
583a019e |
666 | } |
667 | |
146174a9 |
668 | sv_setiv(PL_DBsingle, 0); /* disable DB single-stepping */ |
583a019e |
669 | |
670 | { |
671 | char *buffer = getenv("PERL_DPROF_BUFFER"); |
672 | |
673 | if (buffer) { |
146174a9 |
674 | g_SAVE_STACK = atoi(buffer); |
583a019e |
675 | } |
676 | |
677 | buffer = getenv("PERL_DPROF_TICKS"); |
678 | |
679 | if (buffer) { |
146174a9 |
680 | g_dprof_ticks = atoi(buffer); /* Used under OS/2 only */ |
681 | } |
682 | else { |
683 | g_dprof_ticks = HZ; |
583a019e |
684 | } |
583a019e |
685 | |
146174a9 |
686 | buffer = getenv("PERL_DPROF_OUT_FILE_NAME"); |
687 | g_out_file_name = savepv(buffer ? buffer : "tmon.out"); |
688 | } |
583a019e |
689 | |
146174a9 |
690 | if ((g_fp = PerlIO_open(g_out_file_name, "w")) == NULL) |
691 | croak("DProf: unable to write '%s', errno = %d\n", |
692 | g_out_file_name, errno); |
583a019e |
693 | |
146174a9 |
694 | g_default_perldb = PERLDBf_NONAME | PERLDBf_SUB | PERLDBf_GOTO; |
695 | g_cv_hash = newHV(); |
696 | g_prof_pid = (int)getpid(); |
583a019e |
697 | |
146174a9 |
698 | New(0, g_profstack, g_profstack_max, PROFANY); |
699 | prof_recordheader(aTHX); |
583a019e |
700 | DBG_TIMER_NOTIFY("Profiler timer is on.\n"); |
146174a9 |
701 | g_orealtime = g_rprof_start = Times(&g_prof_start); |
702 | g_otms_utime = g_prof_start.tms_utime; |
703 | g_otms_stime = g_prof_start.tms_stime; |
704 | PL_perldb = g_default_perldb; |
705 | } |