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 * $FreeBSD$ 35 */ 36 37 #include <sys/types.h> 38 #include <sys/stat.h> 39 #include <sys/gmon.h> 40 41 #include <stdio.h> 42 #include <stdlib.h> 43 44 #if __ia64__ 45 # include "ia64.h" 46 #endif 47 #if __alpha__ 48 # include "alpha.h" 49 #endif 50 #if __sparc64__ 51 # include "sparc64.h" 52 #endif 53 #if __powerpc__ 54 # include "powerpc.h" 55 #endif 56 #if __i386__ 57 # include "i386.h" 58 #endif 59 60 /* 61 * booleans 62 */ 63 typedef int bool; 64 #define FALSE 0 65 #define TRUE 1 66 67 /* 68 * Historical scale factor in profil(2)'s algorithm for converting 69 * pc addresses to bucket numbers. This now just complicates the 70 * scaling and makes bucket:pc densities of more than 1/2 useless. 71 */ 72 #define HISTORICAL_SCALE_2 2 73 74 /* 75 * ticks per second 76 */ 77 long hz; 78 79 size_t histcounter_size; 80 int histcounter_type; 81 82 char *a_outname; 83 #define A_OUTNAME "a.out" 84 85 char *gmonname; 86 #define GMONSUM "gmon.sum" 87 88 /* 89 * a constructed arc, 90 * with pointers to the namelist entry of the parent and the child, 91 * a count of how many times this arc was traversed, 92 * and pointers to the next parent of this child and 93 * the next child of this parent. 94 */ 95 struct arcstruct { 96 struct nl *arc_parentp; /* pointer to parent's nl entry */ 97 struct nl *arc_childp; /* pointer to child's nl entry */ 98 long arc_count; /* num calls from parent to child */ 99 double arc_time; /* time inherited along arc */ 100 double arc_childtime; /* childtime inherited along arc */ 101 struct arcstruct *arc_parentlist; /* parents-of-this-child list */ 102 struct arcstruct *arc_childlist; /* children-of-this-parent list */ 103 struct arcstruct *arc_next; /* list of arcs on cycle */ 104 unsigned short arc_cyclecnt; /* num cycles involved in */ 105 unsigned short arc_flags; /* see below */ 106 }; 107 typedef struct arcstruct arctype; 108 109 /* 110 * arc flags 111 */ 112 #define DEADARC 0x01 /* time should not propagate across the arc */ 113 #define ONLIST 0x02 /* arc is on list of arcs in cycles */ 114 115 /* 116 * The symbol table; 117 * for each external in the specified file we gather 118 * its address, the number of calls and compute its share of CPU time. 119 */ 120 struct nl { 121 const char *name; /* the name */ 122 unsigned long value; /* the pc entry point */ 123 unsigned long svalue; /* entry point aligned to histograms */ 124 double time; /* ticks in this routine */ 125 double childtime; /* cumulative ticks in children */ 126 long ncall; /* how many times called */ 127 long npropcall; /* times called by live arcs */ 128 long selfcalls; /* how many calls to self */ 129 double propfraction; /* what % of time propagates */ 130 double propself; /* how much self time propagates */ 131 double propchild; /* how much child time propagates */ 132 short printflag; /* should this be printed? */ 133 short flags; /* see below */ 134 int index; /* index in the graph list */ 135 int toporder; /* graph call chain top-sort order */ 136 int cycleno; /* internal number of cycle on */ 137 int parentcnt; /* number of live parent arcs */ 138 struct nl *cyclehead; /* pointer to head of cycle */ 139 struct nl *cnext; /* pointer to next member of cycle */ 140 arctype *parents; /* list of caller arcs */ 141 arctype *children; /* list of callee arcs */ 142 }; 143 typedef struct nl nltype; 144 145 nltype *nl; /* the whole namelist */ 146 nltype *npe; /* the virtual end of the namelist */ 147 int nname; /* the number of function names */ 148 149 #define HASCYCLEXIT 0x08 /* node has arc exiting from cycle */ 150 #define CYCLEHEAD 0x10 /* node marked as head of a cycle */ 151 #define VISITED 0x20 /* node visited during a cycle */ 152 153 /* 154 * The cycle list. 155 * for each subcycle within an identified cycle, we gather 156 * its size and the list of included arcs. 157 */ 158 struct cl { 159 int size; /* length of cycle */ 160 struct cl *next; /* next member of list */ 161 arctype *list[1]; /* list of arcs in cycle */ 162 /* actually longer */ 163 }; 164 typedef struct cl cltype; 165 166 arctype *archead; /* the head of arcs in current cycle list */ 167 cltype *cyclehead; /* the head of the list */ 168 int cyclecnt; /* the number of cycles found */ 169 #define CYCLEMAX 100 /* maximum cycles before cutting one of them */ 170 171 /* 172 * flag which marks a nl entry as topologically ``busy'' 173 * flag which marks a nl entry as topologically ``not_numbered'' 174 */ 175 #define DFN_BUSY -1 176 #define DFN_NAN 0 177 178 /* 179 * namelist entries for cycle headers. 180 * the number of discovered cycles. 181 */ 182 nltype *cyclenl; /* cycle header namelist */ 183 int ncycle; /* number of cycles discovered */ 184 185 /* 186 * The header on the gmon.out file. 187 * gmon.out consists of a struct phdr (defined in gmon.h) 188 * and then an array of ncnt samples representing the 189 * discretized program counter values. 190 * 191 * Backward compatible old style header 192 */ 193 struct ophdr { 194 u_short *lpc; 195 u_short *hpc; 196 int ncnt; 197 }; 198 199 int debug; 200 201 /* 202 * Each discretized pc sample has 203 * a count of the number of samples in its range 204 */ 205 double *samples; 206 207 unsigned long s_lowpc; /* lowpc from the profile file */ 208 unsigned long s_highpc; /* highpc from the profile file */ 209 unsigned long lowpc, highpc; /* range profiled, in historical units */ 210 unsigned sampbytes; /* number of bytes of samples */ 211 int nsamples; /* number of samples */ 212 double actime; /* accumulated time thus far for putprofline */ 213 double totime; /* total time for all routines */ 214 double printtime; /* total of time being printed */ 215 double scale; /* scale factor converting samples to pc 216 values: each sample covers scale bytes */ 217 unsigned char *textspace; /* text space of a.out in core */ 218 int cyclethreshold; /* with -C, minimum cycle size to ignore */ 219 220 /* 221 * option flags, from a to z. 222 */ 223 bool aflag; /* suppress static functions */ 224 bool bflag; /* blurbs, too */ 225 bool cflag; /* discovered call graph, too */ 226 bool Cflag; /* find cut-set to eliminate cycles */ 227 bool dflag; /* debugging options */ 228 bool eflag; /* specific functions excluded */ 229 bool Eflag; /* functions excluded with time */ 230 bool fflag; /* specific functions requested */ 231 bool Fflag; /* functions requested with time */ 232 bool kflag; /* arcs to be deleted */ 233 bool Kflag; /* use the running kernel for symbols */ 234 bool sflag; /* sum multiple gmon.out files */ 235 bool uflag; /* suppress symbols hidden from C */ 236 bool zflag; /* zero time/called functions, too */ 237 238 /* 239 * structure for various string lists 240 */ 241 struct stringlist { 242 struct stringlist *next; 243 char *string; 244 }; 245 struct stringlist *elist; 246 struct stringlist *Elist; 247 struct stringlist *flist; 248 struct stringlist *Flist; 249 struct stringlist *kfromlist; 250 struct stringlist *ktolist; 251 252 /* 253 * function declarations 254 */ 255 void addarc(nltype *, nltype *, long); 256 bool addcycle(arctype **, arctype **); 257 void addlist(struct stringlist *, char *); 258 void alignentries(void); 259 int aout_getnfile(const char *, char ***); 260 int arccmp(); 261 arctype *arclookup(); 262 void asgnsamples(void); 263 void compresslist(void); 264 bool cycleanalyze(void); 265 void cyclelink(void); 266 void cycletime(void); 267 bool descend(nltype *, arctype **, arctype **); 268 void dfn(nltype *); 269 bool dfn_busy(); 270 void dfn_findcycle(nltype *); 271 void dfn_init(void); 272 bool dfn_numbered(); 273 void dfn_post_visit(nltype *); 274 void dfn_pre_visit(nltype *); 275 void dfn_self_cycle(nltype *); 276 nltype **doarcs(); 277 void doflags(void); 278 void dotime(void); 279 void dumpsum(char *); 280 int elf_getnfile(const char *, char ***); 281 /* 282 findcalls(); 283 */ 284 void flatprofheader(void); 285 void flatprofline(nltype *); 286 void getpfile(char *); 287 /* 288 gprofheader(); 289 gprofline(); 290 */ 291 void inheritflags(nltype *); 292 int kernel_getnfile(const char *, char ***); 293 /* 294 main(); 295 */ 296 unsigned long max(); 297 int membercmp(); 298 unsigned long min(); 299 nltype *nllookup(); 300 bool onlist(struct stringlist *, const char *); 301 FILE *openpfile(); 302 long operandlength(); 303 operandenum operandmode(); 304 char *operandname(); 305 void printblurb(char *); 306 void printchildren(nltype *); 307 void printcycle(nltype *); 308 void printgprof(nltype **); 309 void printindex(void); 310 void printmembers(nltype *); 311 void printname(nltype *); 312 void printparents(nltype *); 313 void printprof(void); 314 void printsubcycle(cltype *); 315 void readsamples(FILE *); 316 unsigned long reladdr(); 317 void sortchildren(nltype *); 318 void sortmembers(nltype *); 319 void sortparents(nltype *); 320 void tally(struct rawarc *); 321 void timepropagate(nltype *); 322 int totalcmp(); 323 324 #define LESSTHAN -1 325 #define EQUALTO 0 326 #define GREATERTHAN 1 327 328 #define DFNDEBUG 1 329 #define CYCLEDEBUG 2 330 #define ARCDEBUG 4 331 #define TALLYDEBUG 8 332 #define TIMEDEBUG 16 333 #define SAMPLEDEBUG 32 334 #define AOUTDEBUG 64 335 #define CALLDEBUG 128 336 #define LOOKUPDEBUG 256 337 #define PROPDEBUG 512 338 #define BREAKCYCLE 1024 339 #define SUBCYCLELIST 2048 340 #define ANYDEBUG 4096 341