| 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 | } |