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 <stdio.h> 41 #include <stdlib.h> 42 43 #if vax 44 # include "vax.h" 45 #endif 46 #if sparc 47 # include "sparc.h" 48 #endif 49 #if tahoe 50 # include "tahoe.h" 51 #endif 52 #if hp300 53 # include "hp300.h" 54 #endif 55 #if luna68k 56 # include "luna68k.h" 57 #endif 58 #if i386 59 # include "i386.h" 60 #endif 61 #if mips 62 # include "mips.h" 63 #endif 64 65 66 /* 67 * booleans 68 */ 69 typedef int bool; 70 #define FALSE 0 71 #define TRUE 1 72 73 /* 74 * ticks per second 75 */ 76 long hz; 77 78 #ifdef GPROF4 79 typedef int64_t UNIT; 80 #else 81 typedef u_short UNIT; /* unit of profiling */ 82 #endif 83 char *a_outname; 84 #define A_OUTNAME "a.out" 85 86 char *gmonname; 87 #define GMONNAME "gmon.out" 88 #define GMONSUM "gmon.sum" 89 90 /* 91 * a constructed arc, 92 * with pointers to the namelist entry of the parent and the child, 93 * a count of how many times this arc was traversed, 94 * and pointers to the next parent of this child and 95 * the next child of this parent. 96 */ 97 struct arcstruct { 98 struct nl *arc_parentp; /* pointer to parent's nl entry */ 99 struct nl *arc_childp; /* pointer to child's nl entry */ 100 long arc_count; /* num calls from parent to child */ 101 double arc_time; /* time inherited along arc */ 102 double arc_childtime; /* childtime inherited along arc */ 103 struct arcstruct *arc_parentlist; /* parents-of-this-child list */ 104 struct arcstruct *arc_childlist; /* children-of-this-parent list */ 105 struct arcstruct *arc_next; /* list of arcs on cycle */ 106 unsigned short arc_cyclecnt; /* num cycles involved in */ 107 unsigned short arc_flags; /* see below */ 108 }; 109 typedef struct arcstruct arctype; 110 111 /* 112 * arc flags 113 */ 114 #define DEADARC 0x01 /* time should not propagate across the arc */ 115 #define ONLIST 0x02 /* arc is on list of arcs in cycles */ 116 117 /* 118 * The symbol table; 119 * for each external in the specified file we gather 120 * its address, the number of calls and compute its share of cpu time. 121 */ 122 struct nl { 123 const char *name; /* the name */ 124 unsigned long value; /* the pc entry point */ 125 unsigned long svalue; /* entry point aligned to histograms */ 126 double time; /* ticks in this routine */ 127 double childtime; /* cumulative ticks in children */ 128 long ncall; /* how many times called */ 129 long npropcall; /* times called by live arcs */ 130 long selfcalls; /* how many calls to self */ 131 double propfraction; /* what % of time propagates */ 132 double propself; /* how much self time propagates */ 133 double propchild; /* how much child time propagates */ 134 short printflag; /* should this be printed? */ 135 short flags; /* see below */ 136 int index; /* index in the graph list */ 137 int toporder; /* graph call chain top-sort order */ 138 int cycleno; /* internal number of cycle on */ 139 int parentcnt; /* number of live parent arcs */ 140 struct nl *cyclehead; /* pointer to head of cycle */ 141 struct nl *cnext; /* pointer to next member of cycle */ 142 arctype *parents; /* list of caller arcs */ 143 arctype *children; /* list of callee arcs */ 144 }; 145 typedef struct nl nltype; 146 147 nltype *nl; /* the whole namelist */ 148 nltype *npe; /* the virtual end of the namelist */ 149 int nname; /* the number of function names */ 150 151 #define HASCYCLEXIT 0x08 /* node has arc exiting from cycle */ 152 #define CYCLEHEAD 0x10 /* node marked as head of a cycle */ 153 #define VISITED 0x20 /* node visited during a cycle */ 154 155 /* 156 * The cycle list. 157 * for each subcycle within an identified cycle, we gather 158 * its size and the list of included arcs. 159 */ 160 struct cl { 161 int size; /* length of cycle */ 162 struct cl *next; /* next member of list */ 163 arctype *list[1]; /* list of arcs in cycle */ 164 /* actually longer */ 165 }; 166 typedef struct cl cltype; 167 168 arctype *archead; /* the head of arcs in current cycle list */ 169 cltype *cyclehead; /* the head of the list */ 170 int cyclecnt; /* the number of cycles found */ 171 #define CYCLEMAX 100 /* maximum cycles before cutting one of them */ 172 173 /* 174 * flag which marks a nl entry as topologically ``busy'' 175 * flag which marks a nl entry as topologically ``not_numbered'' 176 */ 177 #define DFN_BUSY -1 178 #define DFN_NAN 0 179 180 /* 181 * namelist entries for cycle headers. 182 * the number of discovered cycles. 183 */ 184 nltype *cyclenl; /* cycle header namelist */ 185 int ncycle; /* number of cycles discovered */ 186 187 /* 188 * The header on the gmon.out file. 189 * gmon.out consists of a struct phdr (defined in gmon.h) 190 * and then an array of ncnt samples representing the 191 * discretized program counter values. 192 * 193 * Backward compatible old style header 194 */ 195 struct ophdr { 196 UNIT *lpc; 197 UNIT *hpc; 198 int ncnt; 199 }; 200 201 int debug; 202 203 /* 204 * Each discretized pc sample has 205 * a count of the number of samples in its range 206 */ 207 UNIT *samples; 208 209 unsigned long s_lowpc; /* lowpc from the profile file */ 210 unsigned long s_highpc; /* highpc from the profile file */ 211 unsigned lowpc, highpc; /* range profiled, in UNIT's */ 212 unsigned sampbytes; /* number of bytes of samples */ 213 int nsamples; /* number of samples */ 214 double actime; /* accumulated time thus far for putprofline */ 215 double totime; /* total time for all routines */ 216 double printtime; /* total of time being printed */ 217 double scale; /* scale factor converting samples to pc 218 values: each sample covers scale bytes */ 219 unsigned char *textspace; /* text space of a.out in core */ 220 int cyclethreshold; /* with -C, minimum cycle size to ignore */ 221 222 /* 223 * option flags, from a to z. 224 */ 225 bool aflag; /* suppress static functions */ 226 bool bflag; /* blurbs, too */ 227 bool cflag; /* discovered call graph, too */ 228 bool Cflag; /* find cut-set to eliminate cycles */ 229 bool dflag; /* debugging options */ 230 bool eflag; /* specific functions excluded */ 231 bool Eflag; /* functions excluded with time */ 232 bool fflag; /* specific functions requested */ 233 bool Fflag; /* functions requested with time */ 234 bool kflag; /* arcs to be deleted */ 235 bool sflag; /* sum multiple gmon.out files */ 236 bool uflag; /* suppress symbols hidden from C */ 237 bool zflag; /* zero time/called functions, too */ 238 239 /* 240 * structure for various string lists 241 */ 242 struct stringlist { 243 struct stringlist *next; 244 char *string; 245 }; 246 struct stringlist *elist; 247 struct stringlist *Elist; 248 struct stringlist *flist; 249 struct stringlist *Flist; 250 struct stringlist *kfromlist; 251 struct stringlist *ktolist; 252 253 /* 254 * function declarations 255 */ 256 /* 257 addarc(); 258 */ 259 int aout_getnfile(const char *, char ***); 260 int arccmp(); 261 arctype *arclookup(); 262 /* 263 asgnsamples(); 264 printblurb(); 265 cyclelink(); 266 dfn(); 267 */ 268 bool dfn_busy(); 269 /* 270 dfn_findcycle(); 271 */ 272 bool dfn_numbered(); 273 /* 274 dfn_post_visit(); 275 dfn_pre_visit(); 276 dfn_self_cycle(); 277 */ 278 nltype **doarcs(); 279 /* 280 done(); 281 */ 282 int elf_getnfile(const char *, char ***); 283 /* 284 findcalls(); 285 flatprofheader(); 286 flatprofline(); 287 */ 288 /* 289 getpfile(); 290 gprofheader(); 291 gprofline(); 292 main(); 293 */ 294 unsigned long max(); 295 int membercmp(); 296 unsigned long min(); 297 nltype *nllookup(); 298 FILE *openpfile(); 299 long operandlength(); 300 operandenum operandmode(); 301 char *operandname(); 302 /* 303 printchildren(); 304 printcycle(); 305 printgprof(); 306 printmembers(); 307 printname(); 308 printparents(); 309 printprof(); 310 readsamples(); 311 */ 312 unsigned long reladdr(); 313 /* 314 sortchildren(); 315 sortmembers(); 316 sortparents(); 317 tally(); 318 timecmp(); 319 topcmp(); 320 */ 321 int totalcmp(); 322 /* 323 valcmp(); 324 */ 325 326 #define LESSTHAN -1 327 #define EQUALTO 0 328 #define GREATERTHAN 1 329 330 #define DFNDEBUG 1 331 #define CYCLEDEBUG 2 332 #define ARCDEBUG 4 333 #define TALLYDEBUG 8 334 #define TIMEDEBUG 16 335 #define SAMPLEDEBUG 32 336 #define AOUTDEBUG 64 337 #define CALLDEBUG 128 338 #define LOOKUPDEBUG 256 339 #define PROPDEBUG 512 340 #define BREAKCYCLE 1024 341 #define SUBCYCLELIST 2048 342 #define ANYDEBUG 4096 343