projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 34b9dafd KT |
1 | /* |
| 2 | * Print execution profile | |
| 3 | */ | |
| 4 | ||
| 5 | #include <stdio.h> | |
| 6 | #include <sys/types.h> | |
| 7 | #include <sys/stat.h> | |
| 8 | #include <a.out.h> | |
| 9 | ||
| 10 | typedef short UNIT; /* unit of profiling */ | |
| 11 | ||
| 12 | struct stat stbuf; | |
| 13 | struct nl { | |
| 14 | char name[8]; | |
| 15 | unsigned value; | |
| 16 | float time; | |
| 17 | long ncall; | |
| 18 | }; | |
| 19 | ||
| 20 | struct hdr { | |
| 21 | UNIT *lowpc; | |
| 22 | UNIT *highpc; | |
| 23 | int ncount; | |
| 24 | }; | |
| 25 | ||
| 26 | struct nl nl[1200]; | |
| 27 | ||
| 28 | struct cnt { | |
| 29 | unsigned cvalue; | |
| 30 | long cncall; | |
| 31 | } cbuf[350]; | |
| 32 | ||
| 33 | FILE *pfile, *nfile; | |
| 34 | unsigned highpc; | |
| 35 | unsigned lowpc; | |
| 36 | double ransca; | |
| 37 | double ranoff; | |
| 38 | unsigned pcl; | |
| 39 | unsigned pch; | |
| 40 | unsigned bufs; | |
| 41 | int nname; | |
| 42 | double ftime; | |
| 43 | double actime; | |
| 44 | double totime; | |
| 45 | double maxtime; | |
| 46 | double scale; | |
| 47 | double lastx; | |
| 48 | double lasty; | |
| 49 | struct nl *np; | |
| 50 | struct nl *npe; | |
| 51 | int aflg; | |
| 52 | int vflg; | |
| 53 | int lflg; | |
| 54 | long symoff; | |
| 55 | ||
| 56 | main(argc, argv) | |
| 57 | char **argv; | |
| 58 | { | |
| 59 | char *namfil; | |
| 60 | int timcmp(), valcmp(); | |
| 61 | int i, overlap; | |
| 62 | long pfpos; | |
| 63 | double lastsx; | |
| 64 | struct cnt *cp; | |
| 65 | double tx, ty; | |
| 66 | struct exec xbuf; | |
| 67 | struct hdr h; | |
| 68 | ||
| 69 | lowpc = -1; | |
| 70 | highpc = -1; | |
| 71 | argv++; | |
| 72 | namfil = "a.out"; | |
| 73 | while (argc>1) { | |
| 74 | if (**argv == '-') { | |
| 75 | if (*++*argv == 'l') | |
| 76 | lflg++; | |
| 77 | if (**argv == 'a') | |
| 78 | aflg = 040; | |
| 79 | if(**argv == 'v') | |
| 80 | vflg++; | |
| 81 | if(**argv >= '0' && **argv <= '9') { | |
| 82 | i = atoi(*argv); | |
| 83 | if(lowpc == -1) | |
| 84 | lowpc = i; | |
| 85 | else | |
| 86 | highpc = i; | |
| 87 | } | |
| 88 | } else | |
| 89 | namfil = *argv; | |
| 90 | argc--; | |
| 91 | argv++; | |
| 92 | } | |
| 93 | if (lowpc >= 100) | |
| 94 | lowpc = 0; | |
| 95 | if(highpc <= lowpc || highpc > 100) | |
| 96 | highpc = 100; | |
| 97 | ransca = 100./(highpc-lowpc); | |
| 98 | ranoff = 2040. + 40.8*lowpc*ransca; | |
| 99 | if((nfile=fopen(namfil,"r"))==NULL) { | |
| 100 | fprintf(stderr, "%s: not found\n", namfil); | |
| 101 | done(); | |
| 102 | } | |
| 103 | fread((char *)&xbuf, 1, sizeof(xbuf), nfile); | |
| 104 | if (xbuf.a_magic!=A_MAGIC1 && xbuf.a_magic!=A_MAGIC2 && xbuf.a_magic!=A_MAGIC3) { | |
| 105 | fprintf(stderr, "%s: bad format\n", namfil); | |
| 106 | done(); | |
| 107 | } | |
| 108 | symoff = (long)xbuf.a_text + xbuf.a_data; | |
| 109 | if ((xbuf.a_flag&01) == 0) | |
| 110 | symoff *= 2; | |
| 111 | fseek(nfile, symoff+sizeof(xbuf), 0); | |
| 112 | if((pfile = fopen("mon.out","r")) == NULL) { | |
| 113 | fprintf(stderr, "No mon.out\n"); | |
| 114 | done(); | |
| 115 | } | |
| 116 | fstat(fileno(pfile), &stbuf); | |
| 117 | fread((char *)&h, sizeof(struct hdr), 1, pfile); | |
| 118 | lowpc = h.lowpc - (UNIT *)0; | |
| 119 | highpc = h.highpc - (UNIT *)0; | |
| 120 | bufs = stbuf.st_size - sizeof(struct hdr) - h.ncount*sizeof(struct cnt); | |
| 121 | fread((char *)cbuf, sizeof(struct cnt), h.ncount, pfile); | |
| 122 | pfpos = ftell(pfile); | |
| 123 | npe = nl; | |
| 124 | for (nname = 0; xbuf.a_syms > 0; xbuf.a_syms -= sizeof(struct nlist)) { | |
| 125 | struct nlist nbuf; | |
| 126 | fread((char *)&nbuf, sizeof(nbuf), 1, nfile); | |
| 127 | if (nbuf.n_type!=N_TEXT && nbuf.n_type!=N_TEXT+N_EXT) | |
| 128 | continue; | |
| 129 | if (aflg==0 && nbuf.n_type!=N_TEXT+N_EXT) | |
| 130 | continue; | |
| 131 | npe->value = nbuf.n_value/sizeof(UNIT); | |
| 132 | for (i=0; i<8; i++) | |
| 133 | npe->name[i] = nbuf.n_name[i]; | |
| 134 | npe++; | |
| 135 | nname++; | |
| 136 | } | |
| 137 | if (nname == 0) { | |
| 138 | fprintf(stderr, "%s: no symbols\n", namfil); | |
| 139 | done(); | |
| 140 | } | |
| 141 | npe->value = -1; | |
| 142 | npe++; | |
| 143 | for (cp = cbuf; cp < &cbuf[h.ncount]; cp++) | |
| 144 | for (np = nl; np < npe; np++) | |
| 145 | if ((unsigned)(cp->cvalue/sizeof(UNIT) - np->value) <=10) { | |
| 146 | np->ncall = cp->cncall; | |
| 147 | break; | |
| 148 | } | |
| 149 | qsort(nl, nname, sizeof(struct nl), valcmp); | |
| 150 | scale = highpc - lowpc; | |
| 151 | scale /= bufs/sizeof(UNIT); | |
| 152 | for(i=0;;i++) { | |
| 153 | register j; | |
| 154 | unsigned UNIT ccnt; | |
| 155 | fread((char *)&ccnt, sizeof(ccnt), 1, pfile); | |
| 156 | if(feof(pfile)) | |
| 157 | break; | |
| 158 | if (ccnt == 0) | |
| 159 | continue; | |
| 160 | pcl = lowpc + scale*i; | |
| 161 | pch = lowpc + scale*(i+1); | |
| 162 | ftime = ccnt; | |
| 163 | totime += ftime; | |
| 164 | if(ftime > maxtime) | |
| 165 | maxtime = ftime; | |
| 166 | for (j=0; j<nname; j++) { | |
| 167 | if (pch < nl[j].value) | |
| 168 | break; | |
| 169 | if (pcl >= nl[j+1].value) | |
| 170 | continue; | |
| 171 | overlap=(min(pch,nl[j+1].value)-max(pcl,nl[j].value)); | |
| 172 | nl[j].time += overlap*ftime/scale; | |
| 173 | } | |
| 174 | } | |
| 175 | if (totime==0.0) { | |
| 176 | fprintf(stderr, "No time accumulated\n"); | |
| 177 | done(); | |
| 178 | } | |
| 179 | #ifdef plot | |
| 180 | if(!vflg) | |
| 181 | goto print; | |
| 182 | openpl(); | |
| 183 | erase(); | |
| 184 | space(-2048, -2048, 2048, 2048); | |
| 185 | line(-2040, -2040, -2040, 2040); | |
| 186 | line(0, 2040, 0, -2040); | |
| 187 | for(i=0; i<11; i++) | |
| 188 | line(-2040, 2040-i*408, 0, 2040-i*408); | |
| 189 | lastx = 0.; | |
| 190 | lasty = ranoff; | |
| 191 | scale = (4080.*ransca)/(bufs/sizeof(UNIT)); | |
| 192 | fclose(pfile); /*to turn off eof*/ | |
| 193 | pfile = fopen("mon.out", "r"); | |
| 194 | fseek(pfile, pfpos, 0); | |
| 195 | lastsx = 0.0; | |
| 196 | for(;;) { | |
| 197 | unsigned UNIT ccnt; | |
| 198 | fread((char *)&ccnt, sizeof(ccnt), 1, pfile); | |
| 199 | if(feof(pfile)) | |
| 200 | break; | |
| 201 | ftime = ccnt; | |
| 202 | tx = lastsx; | |
| 203 | ty = lasty; | |
| 204 | lastsx -= 2000.*ftime/totime; | |
| 205 | lasty -= scale; | |
| 206 | if(lasty >= -2040. && ty <= 2040.) { | |
| 207 | line((int)tx, (int)ty, (int)lastsx, (int)lasty); | |
| 208 | if (ccnt!=0 || lastx!=0.0) { | |
| 209 | tx = lastx; | |
| 210 | lastx = -ftime*2000./maxtime; | |
| 211 | ty += scale/2; | |
| 212 | line(0, (int)ty, (int)tx, (int)ty); | |
| 213 | } | |
| 214 | } | |
| 215 | } | |
| 216 | scale = (4080.*ransca)/(highpc-lowpc); | |
| 217 | lastx = 50.; | |
| 218 | for(np = nl; np<npe; np++) { | |
| 219 | if(np->value < lowpc) | |
| 220 | continue; | |
| 221 | if(np->value >= highpc) | |
| 222 | continue; | |
| 223 | ftime = np->time/totime; | |
| 224 | lasty = ranoff - (np->value - lowpc)*scale; | |
| 225 | if(lasty >= -2040. && lasty <= 2040.) { | |
| 226 | char bufl[8+3], *namp; | |
| 227 | register j; | |
| 228 | line(0, (int)lasty, 50, (int)lasty); | |
| 229 | line((int)(lastx-50),(int)lasty,(int)lastx,(int)lasty); | |
| 230 | point((int)(lastx+30), (int)(lasty+10)); | |
| 231 | namp = bufl; | |
| 232 | for(j=0; j<8; j++) | |
| 233 | if(np->name[j] != '_') | |
| 234 | *namp++ = np->name[j]; | |
| 235 | *namp++ = '\n'; | |
| 236 | *namp++ = 0; | |
| 237 | label(bufl); | |
| 238 | } | |
| 239 | lastx += 500.; | |
| 240 | if(lastx > 2000.) | |
| 241 | lastx = 50.; | |
| 242 | } | |
| 243 | done(); | |
| 244 | ||
| 245 | print: | |
| 246 | #endif | |
| 247 | actime = 0; | |
| 248 | printf(" name %%time cumsecs #call ms/call\n"); | |
| 249 | if (!lflg) | |
| 250 | qsort(nl, nname, sizeof(struct nl), timcmp); | |
| 251 | for (np = nl; np<npe-1; np++) { | |
| 252 | ftime = np->time/totime; | |
| 253 | actime += np->time; | |
| 254 | printf("%8.8s%6.1f%9.2f", np->name, 100*ftime, actime/60); | |
| 255 | if(np->ncall!=0) { | |
| 256 | printf("%6ld", np->ncall); | |
| 257 | printf(" %7.2f\n", np->time/(np->ncall*.06)); | |
| 258 | } else | |
| 259 | printf("\n"); | |
| 260 | } | |
| 261 | done(); | |
| 262 | } | |
| 263 | ||
| 264 | min(a, b) | |
| 265 | unsigned a, b; | |
| 266 | { | |
| 267 | if (a<b) | |
| 268 | return(a); | |
| 269 | return(b); | |
| 270 | } | |
| 271 | ||
| 272 | max(a, b) | |
| 273 | unsigned a, b; | |
| 274 | { | |
| 275 | if (a>b) | |
| 276 | return(a); | |
| 277 | return(b); | |
| 278 | } | |
| 279 | ||
| 280 | valcmp(p1, p2) | |
| 281 | struct nl *p1, *p2; | |
| 282 | { | |
| 283 | return(p1->value - p2->value); | |
| 284 | } | |
| 285 | ||
| 286 | timcmp(p1, p2) | |
| 287 | struct nl *p1, *p2; | |
| 288 | { | |
| 289 | float d; | |
| 290 | ||
| 291 | d = p2->time - p1->time; | |
| 292 | if (d > 0.0) | |
| 293 | return(1); | |
| 294 | if (d < 0.0) | |
| 295 | return(-1); | |
| 296 | return(0); | |
| 297 | } | |
| 298 | ||
| 299 | done() | |
| 300 | { | |
| 301 | ||
| 302 | #ifdef plot | |
| 303 | if(vflg) { | |
| 304 | point(0, -2040); | |
| 305 | closepl(); | |
| 306 | } | |
| 307 | #endif | |
| 308 | exit(0); | |
| 309 | } |