1 /* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. 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. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)gprof.h 8.1 (Berkeley) 6/6/93 34 */ 35 36 #include <sys/types.h> 37 #include <sys/stat.h> 38 #include <sys/gmon.h> 39 40 #include <a.out.h> 41 #include <stdio.h> 42 #include <stdlib.h> 43 44 #if vax 45 # include "vax.h" 46 #endif 47 #if sparc 48 # include "sparc.h" 49 #endif 50 #if tahoe 51 # include "tahoe.h" 52 #endif 53 #if hp300 54 # include "hp300.h" 55 #endif 56 #if luna68k 57 # include "luna68k.h" 58 #endif 59 #if i386 60 # include "i386.h" 61 #endif 62 #if mips 63 # include "mips.h" 64 #endif 65 66 67 /* 68 * who am i, for error messages. 69 */ 70 char *whoami; 71 72 /* 73 * booleans 74 */ 75 typedef int bool; 76 #define FALSE 0 77 #define TRUE 1 78 79 /* 80 * ticks per second 81 */ 82 long hz; 83 84 typedef u_short UNIT; /* unit of profiling */ 85 char *a_outname; 86 #define A_OUTNAME "a.out" 87 88 char *gmonname; 89 #define GMONNAME "gmon.out" 90 #define GMONSUM "gmon.sum" 91 92 /* 93 * a constructed arc, 94 * with pointers to the namelist entry of the parent and the child, 95 * a count of how many times this arc was traversed, 96 * and pointers to the next parent of this child and 97 * the next child of this parent. 98 */ 99 struct arcstruct { 100 struct nl *arc_parentp; /* pointer to parent's nl entry */ 101 struct nl *arc_childp; /* pointer to child's nl entry */ 102 long arc_count; /* num calls from parent to child */ 103 double arc_time; /* time inherited along arc */ 104 double arc_childtime; /* childtime inherited along arc */ 105 struct arcstruct *arc_parentlist; /* parents-of-this-child list */ 106 struct arcstruct *arc_childlist; /* children-of-this-parent list */ 107 struct arcstruct *arc_next; /* list of arcs on cycle */ 108 unsigned short arc_cyclecnt; /* num cycles involved in */ 109 unsigned short arc_flags; /* see below */ 110 }; 111 typedef struct arcstruct arctype; 112 113 /* 114 * arc flags 115 */ 116 #define DEADARC 0x01 /* time should not propagate across the arc */ 117 #define ONLIST 0x02 /* arc is on list of arcs in cycles */ 118 119 /* 120 * The symbol table; 121 * for each external in the specified file we gather 122 * its address, the number of calls and compute its share of cpu time. 123 */ 124 struct nl { 125 char *name; /* the name */ 126 unsigned long value; /* the pc entry point */ 127 unsigned long svalue; /* entry point aligned to histograms */ 128 double time; /* ticks in this routine */ 129 double childtime; /* cumulative ticks in children */ 130 long ncall; /* how many times called */ 131 long npropcall; /* times called by live arcs */ 132 long selfcalls; /* how many calls to self */ 133 double propfraction; /* what % of time propagates */ 134 double propself; /* how much self time propagates */ 135 double propchild; /* how much child time propagates */ 136 short printflag; /* should this be printed? */ 137 short flags; /* see below */ 138 int index; /* index in the graph list */ 139 int toporder; /* graph call chain top-sort order */ 140 int cycleno; /* internal number of cycle on */ 141 int parentcnt; /* number of live parent arcs */ 142 struct nl *cyclehead; /* pointer to head of cycle */ 143 struct nl *cnext; /* pointer to next member of cycle */ 144 arctype *parents; /* list of caller arcs */ 145 arctype *children; /* list of callee arcs */ 146 }; 147 typedef struct nl nltype; 148 149 nltype *nl; /* the whole namelist */ 150 nltype *npe; /* the virtual end of the namelist */ 151 int nname; /* the number of function names */ 152 153 #define HASCYCLEXIT 0x08 /* node has arc exiting from cycle */ 154 #define CYCLEHEAD 0x10 /* node marked as head of a cycle */ 155 #define VISITED 0x20 /* node visited during a cycle */ 156 157 /* 158 * The cycle list. 159 * for each subcycle within an identified cycle, we gather 160 * its size and the list of included arcs. 161 */ 162 struct cl { 163 int size; /* length of cycle */ 164 struct cl *next; /* next member of list */ 165 arctype *list[1]; /* list of arcs in cycle */ 166 /* actually longer */ 167 }; 168 typedef struct cl cltype; 169 170 arctype *archead; /* the head of arcs in current cycle list */ 171 cltype *cyclehead; /* the head of the list */ 172 int cyclecnt; /* the number of cycles found */ 173 #define CYCLEMAX 100 /* maximum cycles before cutting one of them */ 174 175 /* 176 * flag which marks a nl entry as topologically ``busy'' 177 * flag which marks a nl entry as topologically ``not_numbered'' 178 */ 179 #define DFN_BUSY -1 180 #define DFN_NAN 0 181 182 /* 183 * namelist entries for cycle headers. 184 * the number of discovered cycles. 185 */ 186 nltype *cyclenl; /* cycle header namelist */ 187 int ncycle; /* number of cycles discovered */ 188 189 /* 190 * The header on the gmon.out file. 191 * gmon.out consists of a struct phdr (defined in gmon.h) 192 * and then an array of ncnt samples representing the 193 * discretized program counter values. 194 * 195 * Backward compatible old style header 196 */ 197 struct ophdr { 198 UNIT *lpc; 199 UNIT *hpc; 200 int ncnt; 201 }; 202 203 int debug; 204 205 /* 206 * Each discretized pc sample has 207 * a count of the number of samples in its range 208 */ 209 UNIT *samples; 210 211 unsigned long s_lowpc; /* lowpc from the profile file */ 212 unsigned long s_highpc; /* highpc from the profile file */ 213 unsigned lowpc, highpc; /* range profiled, in UNIT's */ 214 unsigned sampbytes; /* number of bytes of samples */ 215 int nsamples; /* number of samples */ 216 double actime; /* accumulated time thus far for putprofline */ 217 double totime; /* total time for all routines */ 218 double printtime; /* total of time being printed */ 219 double scale; /* scale factor converting samples to pc 220 values: each sample covers scale bytes */ 221 char *strtab; /* string table in core */ 222 long ssiz; /* size of the string table */ 223 struct exec xbuf; /* exec header of a.out */ 224 unsigned char *textspace; /* text space of a.out in core */ 225 int cyclethreshold; /* with -C, minimum cycle size to ignore */ 226 227 /* 228 * option flags, from a to z. 229 */ 230 bool aflag; /* suppress static functions */ 231 bool bflag; /* blurbs, too */ 232 bool cflag; /* discovered call graph, too */ 233 bool Cflag; /* find cut-set to eliminate cycles */ 234 bool dflag; /* debugging options */ 235 bool eflag; /* specific functions excluded */ 236 bool Eflag; /* functions excluded with time */ 237 bool fflag; /* specific functions requested */ 238 bool Fflag; /* functions requested with time */ 239 bool kflag; /* arcs to be deleted */ 240 bool sflag; /* sum multiple gmon.out files */ 241 bool zflag; /* zero time/called functions, too */ 242 243 /* 244 * structure for various string lists 245 */ 246 struct stringlist { 247 struct stringlist *next; 248 char *string; 249 }; 250 struct stringlist *elist; 251 struct stringlist *Elist; 252 struct stringlist *flist; 253 struct stringlist *Flist; 254 struct stringlist *kfromlist; 255 struct stringlist *ktolist; 256 257 /* 258 * function declarations 259 */ 260 /* 261 addarc(); 262 */ 263 int arccmp(); 264 arctype *arclookup(); 265 /* 266 asgnsamples(); 267 printblurb(); 268 cyclelink(); 269 dfn(); 270 */ 271 bool dfn_busy(); 272 /* 273 dfn_findcycle(); 274 */ 275 bool dfn_numbered(); 276 /* 277 dfn_post_visit(); 278 dfn_pre_visit(); 279 dfn_self_cycle(); 280 */ 281 nltype **doarcs(); 282 /* 283 done(); 284 findcalls(); 285 flatprofheader(); 286 flatprofline(); 287 */ 288 bool funcsymbol(); 289 /* 290 getnfile(); 291 getpfile(); 292 getstrtab(); 293 getsymtab(); 294 gettextspace(); 295 gprofheader(); 296 gprofline(); 297 main(); 298 */ 299 unsigned long max(); 300 int membercmp(); 301 unsigned long min(); 302 nltype *nllookup(); 303 FILE *openpfile(); 304 long operandlength(); 305 operandenum operandmode(); 306 char *operandname(); 307 /* 308 printchildren(); 309 printcycle(); 310 printgprof(); 311 printmembers(); 312 printname(); 313 printparents(); 314 printprof(); 315 readsamples(); 316 */ 317 unsigned long reladdr(); 318 /* 319 sortchildren(); 320 sortmembers(); 321 sortparents(); 322 tally(); 323 timecmp(); 324 topcmp(); 325 */ 326 int totalcmp(); 327 /* 328 valcmp(); 329 */ 330 331 #define LESSTHAN -1 332 #define EQUALTO 0 333 #define GREATERTHAN 1 334 335 #define DFNDEBUG 1 336 #define CYCLEDEBUG 2 337 #define ARCDEBUG 4 338 #define TALLYDEBUG 8 339 #define TIMEDEBUG 16 340 #define SAMPLEDEBUG 32 341 #define AOUTDEBUG 64 342 #define CALLDEBUG 128 343 #define LOOKUPDEBUG 256 344 #define PROPDEBUG 512 345 #define BREAKCYCLE 1024 346 #define SUBCYCLELIST 2048 347 #define ANYDEBUG 4096 348