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638e2294 RS |
1 | /*- |
2 | * Copyright (c) 1991 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
a8196924 | 13 | * 3. [rescinded 22 July 1999] |
638e2294 RS |
14 | * 4. Neither the name of the University nor the names of its contributors |
15 | * may be used to endorse or promote products derived from this software | |
16 | * without specific prior written permission. | |
17 | * | |
18 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
19 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
21 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
24 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
25 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
26 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
27 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
28 | * SUCH DAMAGE. | |
29 | */ | |
30 | ||
ca24c5ad | 31 | /* FIXME: Check comment. */ |
56149abc | 32 | /* Mangled into a form that works on SPARC Solaris 2 by Mark Eichin |
638e2294 | 33 | * for Cygnus Support, July 1992. |
ca24c5ad RO |
34 | * |
35 | * This is a modified gmon.c by J.W.Hawtin <oolon@ankh.org>, | |
36 | * 14/8/96 based on the original gmon.c in GCC and the hacked version | |
37 | * solaris 2 sparc version (config/sparc/gmon-sol.c) by Mark Eichin. To do | |
38 | * process profiling on solaris 2.X X86 | |
39 | * | |
40 | * It must be used in conjunction with sol2-gc1.asm, which is used to start | |
41 | * and stop process monitoring. | |
42 | * | |
43 | * Differences. | |
44 | * | |
45 | * On Solaris 2 _mcount is called by library functions not mcount, so support | |
46 | * has been added for both. | |
47 | * | |
48 | * Also the prototype for profil() is different | |
49 | * | |
50 | * Solaris 2 does not seem to have char *minbrk whcih allows the setting of | |
51 | * the minimum SBRK region so this code has been removed and lets pray malloc | |
52 | * does not mess it up. | |
53 | * | |
54 | * Notes | |
55 | * | |
56 | * This code could easily be integrated with the original gmon.c and perhaps | |
57 | * should be. | |
638e2294 | 58 | */ |
4977bab6 ZW |
59 | #include "tconfig.h" |
60 | #include "tsystem.h" | |
c7c50494 | 61 | #include <fcntl.h> /* for creat() */ |
638e2294 | 62 | |
ca24c5ad RO |
63 | #ifdef DEBUG |
64 | #include <stdio.h> | |
65 | #endif | |
66 | ||
67 | static void moncontrol (int); | |
68 | extern void monstartup (char *, char *); | |
69 | extern void _mcleanup (void); | |
70 | ||
638e2294 RS |
71 | struct phdr { |
72 | char *lpc; | |
73 | char *hpc; | |
74 | int ncnt; | |
75 | }; | |
ca24c5ad RO |
76 | |
77 | ||
638e2294 RS |
78 | #define HISTFRACTION 2 |
79 | #define HISTCOUNTER unsigned short | |
80 | #define HASHFRACTION 1 | |
81 | #define ARCDENSITY 2 | |
82 | #define MINARCS 50 | |
ca24c5ad RO |
83 | #define BASEADDRESS 0x8000000 /* On Solaris 2 X86 all executables start here |
84 | and not at 0 */ | |
85 | ||
638e2294 RS |
86 | struct tostruct { |
87 | char *selfpc; | |
88 | long count; | |
89 | unsigned short link; | |
90 | }; | |
ca24c5ad | 91 | |
638e2294 RS |
92 | struct rawarc { |
93 | unsigned long raw_frompc; | |
94 | unsigned long raw_selfpc; | |
95 | long raw_count; | |
96 | }; | |
97 | #define ROUNDDOWN(x,y) (((x)/(y))*(y)) | |
98 | #define ROUNDUP(x,y) ((((x)+(y)-1)/(y))*(y)) | |
99 | ||
638e2294 RS |
100 | /* extern mcount() asm ("mcount"); */ |
101 | /*extern*/ char *minbrk /* asm ("minbrk") */; | |
ca24c5ad RO |
102 | typedef __SIZE_TYPE__ size_t; |
103 | typedef __PTRDIFF_TYPE__ intptr_t; | |
104 | ||
105 | extern int errno; | |
106 | ||
107 | extern void *sbrk (intptr_t); | |
638e2294 RS |
108 | |
109 | /* | |
110 | * froms is actually a bunch of unsigned shorts indexing tos | |
111 | */ | |
112 | static int profiling = 3; | |
113 | static unsigned short *froms; | |
114 | static struct tostruct *tos = 0; | |
115 | static long tolimit = 0; | |
116 | static char *s_lowpc = 0; | |
117 | static char *s_highpc = 0; | |
ca24c5ad | 118 | static size_t s_textsize = 0; |
638e2294 RS |
119 | |
120 | static int ssiz; | |
121 | static char *sbuf; | |
122 | static int s_scale; | |
123 | /* see profil(2) where this is describe (incorrectly) */ | |
124 | #define SCALE_1_TO_1 0x10000L | |
125 | ||
126 | #define MSG "No space for profiling buffer(s)\n" | |
127 | ||
f7835768 KG |
128 | static void moncontrol (int); |
129 | extern void monstartup (char *, char *); | |
130 | extern void _mcleanup (void); | |
9870475c | 131 | |
f7835768 | 132 | void monstartup(char *lowpc, char *highpc) |
638e2294 | 133 | { |
ca24c5ad | 134 | size_t monsize; |
638e2294 | 135 | char *buffer; |
ca24c5ad | 136 | register size_t o; |
638e2294 RS |
137 | |
138 | /* | |
139 | * round lowpc and highpc to multiples of the density we're using | |
140 | * so the rest of the scaling (here and in gprof) stays in ints. | |
141 | */ | |
142 | lowpc = (char *) | |
ca24c5ad | 143 | ROUNDDOWN((size_t)lowpc, HISTFRACTION*sizeof(HISTCOUNTER)); |
638e2294 RS |
144 | s_lowpc = lowpc; |
145 | highpc = (char *) | |
ca24c5ad | 146 | ROUNDUP((size_t)highpc, HISTFRACTION*sizeof(HISTCOUNTER)); |
638e2294 RS |
147 | s_highpc = highpc; |
148 | s_textsize = highpc - lowpc; | |
149 | monsize = (s_textsize / HISTFRACTION) + sizeof(struct phdr); | |
ca24c5ad | 150 | buffer = (char *) sbrk( monsize ); |
638e2294 RS |
151 | if ( buffer == (char *) -1 ) { |
152 | write( 2 , MSG , sizeof(MSG) ); | |
153 | return; | |
154 | } | |
155 | froms = (unsigned short *) sbrk( s_textsize / HASHFRACTION ); | |
156 | if ( froms == (unsigned short *) -1 ) { | |
157 | write( 2 , MSG , sizeof(MSG) ); | |
158 | froms = 0; | |
159 | return; | |
160 | } | |
161 | tolimit = s_textsize * ARCDENSITY / 100; | |
162 | if ( tolimit < MINARCS ) { | |
163 | tolimit = MINARCS; | |
164 | } else if ( tolimit > 65534 ) { | |
165 | tolimit = 65534; | |
166 | } | |
167 | tos = (struct tostruct *) sbrk( tolimit * sizeof( struct tostruct ) ); | |
168 | if ( tos == (struct tostruct *) -1 ) { | |
169 | write( 2 , MSG , sizeof(MSG) ); | |
170 | froms = 0; | |
171 | tos = 0; | |
172 | return; | |
173 | } | |
174 | minbrk = sbrk(0); | |
175 | tos[0].link = 0; | |
176 | sbuf = buffer; | |
177 | ssiz = monsize; | |
178 | ( (struct phdr *) buffer ) -> lpc = lowpc; | |
179 | ( (struct phdr *) buffer ) -> hpc = highpc; | |
180 | ( (struct phdr *) buffer ) -> ncnt = ssiz; | |
181 | monsize -= sizeof(struct phdr); | |
182 | if ( monsize <= 0 ) | |
183 | return; | |
184 | o = highpc - lowpc; | |
185 | if( monsize < o ) | |
186 | #ifndef hp300 | |
187 | s_scale = ( (float) monsize / o ) * SCALE_1_TO_1; | |
188 | #else /* avoid floating point */ | |
189 | { | |
190 | int quot = o / monsize; | |
191 | ||
192 | if (quot >= 0x10000) | |
193 | s_scale = 1; | |
194 | else if (quot >= 0x100) | |
195 | s_scale = 0x10000 / quot; | |
196 | else if (o >= 0x800000) | |
197 | s_scale = 0x1000000 / (o / (monsize >> 8)); | |
198 | else | |
199 | s_scale = 0x1000000 / ((o << 8) / monsize); | |
200 | } | |
201 | #endif | |
202 | else | |
203 | s_scale = SCALE_1_TO_1; | |
204 | moncontrol(1); | |
205 | } | |
206 | ||
6156580d | 207 | void |
f7835768 | 208 | _mcleanup(void) |
638e2294 RS |
209 | { |
210 | int fd; | |
211 | int fromindex; | |
212 | int endfrom; | |
213 | char *frompc; | |
214 | int toindex; | |
215 | struct rawarc rawarc; | |
6156580d | 216 | char *profdir; |
3bb5de61 | 217 | const char *proffile; |
6156580d JW |
218 | char *progname; |
219 | char buf[PATH_MAX]; | |
220 | extern char **___Argv; | |
638e2294 RS |
221 | |
222 | moncontrol(0); | |
6156580d JW |
223 | |
224 | if ((profdir = getenv("PROFDIR")) != NULL) { | |
225 | /* If PROFDIR contains a null value, no profiling output is produced */ | |
226 | if (*profdir == '\0') { | |
227 | return; | |
228 | } | |
229 | ||
230 | progname=strrchr(___Argv[0], '/'); | |
231 | if (progname == NULL) | |
232 | progname=___Argv[0]; | |
233 | else | |
234 | progname++; | |
235 | ||
fd05eb80 | 236 | sprintf(buf, "%s/%ld.%s", profdir, (long) getpid(), progname); |
6156580d JW |
237 | proffile = buf; |
238 | } else { | |
239 | proffile = "gmon.out"; | |
240 | } | |
241 | ||
242 | fd = creat( proffile, 0666 ); | |
638e2294 | 243 | if ( fd < 0 ) { |
6156580d | 244 | perror( proffile ); |
638e2294 RS |
245 | return; |
246 | } | |
247 | # ifdef DEBUG | |
ca24c5ad | 248 | fprintf( stderr , "[mcleanup] sbuf %#x ssiz %d\n" , sbuf , ssiz ); |
ce1cc601 | 249 | # endif /* DEBUG */ |
ca24c5ad | 250 | |
638e2294 RS |
251 | write( fd , sbuf , ssiz ); |
252 | endfrom = s_textsize / (HASHFRACTION * sizeof(*froms)); | |
253 | for ( fromindex = 0 ; fromindex < endfrom ; fromindex++ ) { | |
254 | if ( froms[fromindex] == 0 ) { | |
255 | continue; | |
256 | } | |
257 | frompc = s_lowpc + (fromindex * HASHFRACTION * sizeof(*froms)); | |
258 | for (toindex=froms[fromindex]; toindex!=0; toindex=tos[toindex].link) { | |
259 | # ifdef DEBUG | |
260 | fprintf( stderr , | |
ca24c5ad | 261 | "[mcleanup] frompc %#x selfpc %#x count %d\n" , |
638e2294 | 262 | frompc , tos[toindex].selfpc , tos[toindex].count ); |
ce1cc601 | 263 | # endif /* DEBUG */ |
638e2294 RS |
264 | rawarc.raw_frompc = (unsigned long) frompc; |
265 | rawarc.raw_selfpc = (unsigned long) tos[toindex].selfpc; | |
266 | rawarc.raw_count = tos[toindex].count; | |
267 | write( fd , &rawarc , sizeof rawarc ); | |
268 | } | |
269 | } | |
270 | close( fd ); | |
271 | } | |
272 | ||
ca24c5ad | 273 | #ifdef __sparc__ |
638e2294 | 274 | /* |
56149abc | 275 | * The SPARC stack frame is only held together by the frame pointers |
638e2294 RS |
276 | * in the register windows. According to the SVR4 SPARC ABI |
277 | * Supplement, Low Level System Information/Operating System | |
278 | * Interface/Software Trap Types, a type 3 trap will flush all of the | |
279 | * register windows to the stack, which will make it possible to walk | |
280 | * the frames and find the return addresses. | |
281 | * However, it seems awfully expensive to incur a trap (system | |
282 | * call) for every function call. It turns out that "call" simply puts | |
283 | * the return address in %o7 expecting the "save" in the procedure to | |
284 | * shift it into %i7; this means that before the "save" occurs, %o7 | |
285 | * contains the address of the call to mcount, and %i7 still contains | |
286 | * the caller above that. The asm mcount here simply saves those | |
287 | * registers in argument registers and branches to internal_mcount, | |
288 | * simulating a call with arguments. | |
289 | * Kludges: | |
290 | * 1) the branch to internal_mcount is hard coded; it should be | |
291 | * possible to tell asm to use the assembler-name of a symbol. | |
292 | * 2) in theory, the function calling mcount could have saved %i7 | |
293 | * somewhere and reused the register; in practice, I *think* this will | |
294 | * break longjmp (and maybe the debugger) but I'm not certain. (I take | |
295 | * some comfort in the knowledge that it will break the native mcount | |
296 | * as well.) | |
297 | * 3) if builtin_return_address worked, this could be portable. | |
298 | * However, it would really have to be optimized for arguments of 0 | |
299 | * and 1 and do something like what we have here in order to avoid the | |
300 | * trap per function call performance hit. | |
301 | * 4) the atexit and monsetup calls prevent this from simply | |
302 | * being a leaf routine that doesn't do a "save" (and would thus have | |
303 | * access to %o7 and %i7 directly) but the call to write() at the end | |
304 | * would have also prevented this. | |
305 | * | |
306 | * -- [eichin:19920702.1107EST] | |
307 | */ | |
308 | ||
ad6cc85a | 309 | static void internal_mcount (char *, unsigned short *) __attribute__ ((used)); |
3bb5de61 | 310 | |
638e2294 RS |
311 | /* i7 == last ret, -> frompcindex */ |
312 | /* o7 == current ret, -> selfpc */ | |
e6381520 RK |
313 | /* Solaris 2 libraries use _mcount. */ |
314 | asm(".global _mcount; _mcount: mov %i7,%o1; mov %o7,%o0;b,a internal_mcount"); | |
315 | /* This is for compatibility with old versions of gcc which used mcount. */ | |
638e2294 | 316 | asm(".global mcount; mcount: mov %i7,%o1; mov %o7,%o0;b,a internal_mcount"); |
ca24c5ad RO |
317 | #elif defined __x86_64__ |
318 | extern void internal_mcount (char *, unsigned short *); | |
638e2294 | 319 | |
ca24c5ad RO |
320 | /* See GLIBC for additional information about this technique. */ |
321 | asm(".globl _mcount\n" | |
322 | "\t.type\t_mcount, @function\n" | |
323 | "_mcount:\n" | |
324 | /* The compiler calls _mcount after the prologue, and does not | |
325 | save any of the registers. Therefore we must preserve all | |
326 | seven registers which may contain function arguments. */ | |
327 | "\tsubq\t$0x38,%rsp\n" | |
328 | "\tmovq\t%rax,(%rsp)\n" | |
329 | "\tmovq\t%rcx,0x08(%rsp)\n" | |
330 | "\tmovq\t%rdx,0x10(%rsp)\n" | |
331 | "\tmovq\t%rsi,0x18(%rsp)\n" | |
332 | "\tmovq\t%rdi,0x20(%rsp)\n" | |
333 | "\tmovq\t%r8,0x28(%rsp)\n" | |
334 | "\tmovq\t%r9,0x30(%rsp)\n" | |
335 | /* Get SELFPC (pushed by the call to this function) and | |
336 | FROMPCINDEX (via the frame pointer. */ | |
337 | "\tmovq\t0x38(%rsp),%rdi\n" | |
338 | "\tmovq\t0x8(%rbp),%rsi\n" | |
339 | "\tcall\tinternal_mcount\n" | |
340 | /* Restore the saved registers. */ | |
341 | "\tmovq\t0x30(%rsp),%r9\n" | |
342 | "\tmovq\t0x28(%rsp),%r8\n" | |
343 | "\tmovq\t0x20(%rsp),%rdi\n" | |
344 | "\tmovq\t0x18(%rsp),%rsi\n" | |
345 | "\tmovq\t0x10(%rsp),%rdx\n" | |
346 | "\tmovq\t0x08(%rsp),%rcx\n" | |
347 | "\tmovq\t(%rsp),%rax\n" | |
348 | "\taddq\t$0x38,%rsp\n" | |
349 | "\tretq\n" | |
350 | ); | |
351 | #else | |
352 | extern void internal_mcount (void); | |
353 | ||
354 | /* Solaris 2 libraries use _mcount. */ | |
355 | asm(".globl _mcount; _mcount: jmp internal_mcount"); | |
356 | /* This is for compatibility with old versions of gcc which used mcount. */ | |
357 | asm(".globl mcount; mcount: jmp internal_mcount"); | |
358 | #endif | |
359 | ||
360 | #ifdef __sparc__ | |
361 | static | |
362 | #endif | |
363 | void | |
364 | internal_mcount ( | |
365 | #if defined __sparc__ || defined __x86_64__ | |
366 | char *selfpc, | |
367 | unsigned short *frompcindex | |
368 | #else | |
369 | void | |
370 | #endif | |
371 | ) | |
638e2294 | 372 | { |
ca24c5ad RO |
373 | #if !defined __sparc__ && !defined __x86_64__ |
374 | register char *selfpc; | |
375 | register unsigned short *frompcindex; | |
376 | #endif | |
638e2294 RS |
377 | register struct tostruct *top; |
378 | register struct tostruct *prevtop; | |
379 | register long toindex; | |
380 | static char already_setup; | |
381 | ||
ca24c5ad | 382 | #if !defined __sparc__ && !defined __x86_64__ |
638e2294 RS |
383 | /* |
384 | * find the return address for mcount, | |
385 | * and the return address for mcount's caller. | |
386 | */ | |
387 | ||
ca24c5ad RO |
388 | /* selfpc = pc pushed by mcount call. |
389 | This identifies the function that was just entered. */ | |
390 | selfpc = (void *) __builtin_return_address (0); | |
391 | /* frompcindex = pc in preceding frame. | |
392 | This identifies the caller of the function just entered. */ | |
393 | frompcindex = (void *) __builtin_return_address (1); | |
394 | #endif | |
395 | ||
638e2294 | 396 | if(!already_setup) { |
3bb5de61 | 397 | extern char etext[]; |
ca24c5ad | 398 | #ifdef __sparc__ |
6dfaf9ba RH |
399 | extern char _start[]; |
400 | extern char _init[]; | |
ca24c5ad | 401 | #endif |
638e2294 | 402 | already_setup = 1; |
ca24c5ad | 403 | #if defined __sparc__ |
6dfaf9ba | 404 | monstartup(_start < _init ? _start : _init, etext); |
ca24c5ad RO |
405 | #elif defined __x86_64__ |
406 | monstartup(0, etext); | |
407 | #else | |
408 | monstartup((char*)0x08040000, etext); | |
409 | #endif | |
638e2294 RS |
410 | #ifdef USE_ONEXIT |
411 | on_exit(_mcleanup, 0); | |
412 | #else | |
413 | atexit(_mcleanup); | |
414 | #endif | |
415 | } | |
416 | /* | |
417 | * check that we are profiling | |
418 | * and that we aren't recursively invoked. | |
419 | */ | |
420 | if (profiling) { | |
421 | goto out; | |
422 | } | |
423 | profiling++; | |
424 | /* | |
425 | * check that frompcindex is a reasonable pc value. | |
426 | * for example: signal catchers get called from the stack, | |
427 | * not from text space. too bad. | |
428 | */ | |
429 | frompcindex = (unsigned short *)((long)frompcindex - (long)s_lowpc); | |
430 | if ((unsigned long)frompcindex > s_textsize) { | |
431 | goto done; | |
432 | } | |
433 | frompcindex = | |
434 | &froms[((long)frompcindex) / (HASHFRACTION * sizeof(*froms))]; | |
435 | toindex = *frompcindex; | |
436 | if (toindex == 0) { | |
437 | /* | |
438 | * first time traversing this arc | |
439 | */ | |
440 | toindex = ++tos[0].link; | |
441 | if (toindex >= tolimit) { | |
442 | goto overflow; | |
443 | } | |
444 | *frompcindex = toindex; | |
445 | top = &tos[toindex]; | |
446 | top->selfpc = selfpc; | |
447 | top->count = 1; | |
448 | top->link = 0; | |
449 | goto done; | |
450 | } | |
451 | top = &tos[toindex]; | |
452 | if (top->selfpc == selfpc) { | |
453 | /* | |
454 | * arc at front of chain; usual case. | |
455 | */ | |
456 | top->count++; | |
457 | goto done; | |
458 | } | |
459 | /* | |
460 | * have to go looking down chain for it. | |
461 | * top points to what we are looking at, | |
462 | * prevtop points to previous top. | |
463 | * we know it is not at the head of the chain. | |
464 | */ | |
465 | for (; /* goto done */; ) { | |
466 | if (top->link == 0) { | |
467 | /* | |
468 | * top is end of the chain and none of the chain | |
469 | * had top->selfpc == selfpc. | |
470 | * so we allocate a new tostruct | |
471 | * and link it to the head of the chain. | |
472 | */ | |
473 | toindex = ++tos[0].link; | |
474 | if (toindex >= tolimit) { | |
475 | goto overflow; | |
476 | } | |
477 | top = &tos[toindex]; | |
478 | top->selfpc = selfpc; | |
479 | top->count = 1; | |
480 | top->link = *frompcindex; | |
481 | *frompcindex = toindex; | |
482 | goto done; | |
483 | } | |
484 | /* | |
485 | * otherwise, check the next arc on the chain. | |
486 | */ | |
487 | prevtop = top; | |
488 | top = &tos[top->link]; | |
489 | if (top->selfpc == selfpc) { | |
490 | /* | |
491 | * there it is. | |
492 | * increment its count | |
493 | * move it to the head of the chain. | |
494 | */ | |
495 | top->count++; | |
496 | toindex = prevtop->link; | |
497 | prevtop->link = top->link; | |
498 | top->link = *frompcindex; | |
499 | *frompcindex = toindex; | |
500 | goto done; | |
501 | } | |
502 | ||
503 | } | |
504 | done: | |
505 | profiling--; | |
506 | /* and fall through */ | |
507 | out: | |
508 | return; /* normal return restores saved registers */ | |
509 | ||
510 | overflow: | |
511 | profiling++; /* halt further profiling */ | |
512 | # define TOLIMIT "mcount: tos overflow\n" | |
513 | write(2, TOLIMIT, sizeof(TOLIMIT)); | |
514 | goto out; | |
515 | } | |
516 | ||
517 | /* | |
518 | * Control profiling | |
519 | * profiling is what mcount checks to see if | |
520 | * all the data structures are ready. | |
521 | */ | |
f7835768 | 522 | static void moncontrol(int mode) |
638e2294 RS |
523 | { |
524 | if (mode) { | |
525 | /* start */ | |
526 | profil((unsigned short *)(sbuf + sizeof(struct phdr)), | |
527 | ssiz - sizeof(struct phdr), | |
ca24c5ad RO |
528 | (size_t)s_lowpc, s_scale); |
529 | ||
638e2294 RS |
530 | profiling = 0; |
531 | } else { | |
532 | /* stop */ | |
533 | profil((unsigned short *)0, 0, 0, 0); | |
534 | profiling = 3; | |
535 | } | |
536 | } |