dc1d1ca5e8
output styles: The default is similar to the old FSF gprof, while -T sets the variable bsd_style_output, which causes output matching Berkeley's gprof. The biggest differences are that with the FSF style output, the flat profile comes before the call graph; numbers come before explanations; and there is less gratuitous white space. * gprof.h, gprof.c, printfgprof.c: New discard_underscores variable causes discarding of initial underscores when printing symbol names. It is set unless there is a "main" symbol (without an underscore). * printfgprof.c: New function printnameonly(), called by printname(). It handles stripping of initial '_', as well as C++ name-demangling. * gprof.callg, gprof.flat, make-c-prog.awk: Removed. It is just as convenient to edit blurbs.c directly. * Makefile.in: Removed rule for making blurbs.c. * blurbs.c: This is now a true source file (as opposed to being generated from gprof.callg and gprof.flat). Change style to use one long string literal, instead of one literal per output line. Add FSF-style blurb for call graph.
290 lines
7.4 KiB
C
290 lines
7.4 KiB
C
/*
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* Copyright (c) 1983 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that: (1) source distributions retain this entire copyright
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* notice and comment, and (2) distributions including binaries display
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* the following acknowledgement: ``This product includes software
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* developed by the University of California, Berkeley and its contributors''
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* in the documentation or other materials provided with the distribution
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* and in all advertising materials mentioning features or use of this
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* software. Neither the name of the University nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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* @(#)gprof.h 5.9 (Berkeley) 6/1/90
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*/
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#include <stdio.h>
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#ifdef __STDC__
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#include <stdlib.h>
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#endif /* __STDC__ */
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "bfd.h"
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#include "gmon.h"
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#ifdef MACHINE_H
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# include MACHINE_H
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#else
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# if vax
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# include "vax.h"
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# endif
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# if sun
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# include "sun.h"
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# endif
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# if tahoe
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# include "tahoe.h"
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# endif
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#endif
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/*
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* who am i, for error messages.
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*/
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char *whoami;
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/*
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* booleans
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*/
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typedef int bool;
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#define FALSE 0
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#define TRUE 1
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/*
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* ticks per second
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*/
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long hz;
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typedef u_short UNIT; /* unit of profiling */
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char *a_outname;
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#define A_OUTNAME "a.out"
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char *gmonname;
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#define GMONNAME "gmon.out"
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#define GMONSUM "gmon.sum"
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extern int bsd_style_output;
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extern int discard_underscores;
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/*
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* a constructed arc,
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* with pointers to the namelist entry of the parent and the child,
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* a count of how many times this arc was traversed,
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* and pointers to the next parent of this child and
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* the next child of this parent.
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*/
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struct arcstruct {
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struct nl *arc_parentp; /* pointer to parent's nl entry */
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struct nl *arc_childp; /* pointer to child's nl entry */
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long arc_count; /* how calls from parent to child */
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double arc_time; /* time inherited along arc */
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double arc_childtime; /* childtime inherited along arc */
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struct arcstruct *arc_parentlist; /* parents-of-this-child list */
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struct arcstruct *arc_childlist; /* children-of-this-parent list */
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};
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typedef struct arcstruct arctype;
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/*
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* The symbol table;
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* for each external in the specified file we gather
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* its address, the number of calls and compute its share of cpu time.
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*/
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struct nl {
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CONST char *name; /* the name */
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unsigned long value; /* the pc entry point */
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unsigned long svalue; /* entry point aligned to histograms */
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double time; /* ticks in this routine */
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double childtime; /* cumulative ticks in children */
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long ncall; /* how many times called */
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long selfcalls; /* how many calls to self */
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double propfraction; /* what % of time propagates */
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double propself; /* how much self time propagates */
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double propchild; /* how much child time propagates */
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bool printflag; /* should this be printed? */
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int index; /* index in the graph list */
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int toporder; /* graph call chain top-sort order */
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int cycleno; /* internal number of cycle on */
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struct nl *cyclehead; /* pointer to head of cycle */
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struct nl *cnext; /* pointer to next member of cycle */
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arctype *parents; /* list of caller arcs */
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arctype *children; /* list of callee arcs */
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};
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typedef struct nl nltype;
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nltype *nl; /* the whole namelist */
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nltype *npe; /* the virtual end of the namelist */
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int nname; /* the number of function names */
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/*
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* flag which marks a nl entry as topologically ``busy''
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* flag which marks a nl entry as topologically ``not_numbered''
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*/
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#define DFN_BUSY -1
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#define DFN_NAN 0
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/*
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* namelist entries for cycle headers.
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* the number of discovered cycles.
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*/
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nltype *cyclenl; /* cycle header namelist */
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int ncycle; /* number of cycles discovered */
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/*
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* The header on the gmon.out file.
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* gmon.out consists of one of these headers,
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* and then an array of ncnt samples
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* representing the discretized program counter values.
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* this should be a struct phdr, but since everything is done
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* as UNITs, this is in UNITs too.
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*/
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struct hdr {
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UNIT *lowpc;
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UNIT *highpc;
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int ncnt;
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};
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struct hdr h;
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int debug;
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/*
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* Each discretized pc sample has
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* a count of the number of samples in its range
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*/
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UNIT *samples;
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unsigned long s_lowpc; /* lowpc from the profile file */
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unsigned long s_highpc; /* highpc from the profile file */
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unsigned lowpc, highpc; /* range profiled, in UNIT's */
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unsigned sampbytes; /* number of bytes of samples */
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int nsamples; /* number of samples */
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double actime; /* accumulated time thus far for putprofline */
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double totime; /* total time for all routines */
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double printtime; /* total of time being printed */
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double scale; /* scale factor converting samples to pc
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values: each sample covers scale bytes */
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char *strtab; /* string table in core */
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off_t ssiz; /* size of the string table */
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unsigned char *textspace; /* text space of a.out in core */
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/*
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* option flags, from a to z.
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*/
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bool aflag; /* suppress static functions */
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bool bflag; /* blurbs, too */
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bool cflag; /* discovered call graph, too */
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bool dflag; /* debugging options */
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bool eflag; /* specific functions excluded */
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bool Eflag; /* functions excluded with time */
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bool fflag; /* specific functions requested */
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bool Fflag; /* functions requested with time */
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bool kflag; /* arcs to be deleted */
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bool sflag; /* sum multiple gmon.out files */
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bool zflag; /* zero time/called functions, too */
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/*
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* structure for various string lists
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*/
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struct stringlist {
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struct stringlist *next;
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char *string;
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};
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struct stringlist *elist;
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struct stringlist *Elist;
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struct stringlist *flist;
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struct stringlist *Flist;
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struct stringlist *kfromlist;
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struct stringlist *ktolist;
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/*
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* function declarations
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*/
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/*
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addarc();
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*/
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int arccmp();
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arctype *arclookup();
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/*
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asgnsamples();
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printblurb();
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cyclelink();
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dfn();
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*/
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bool dfn_busy();
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/*
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dfn_findcycle();
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*/
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bool dfn_numbered();
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/*
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dfn_post_visit();
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dfn_pre_visit();
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dfn_self_cycle();
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*/
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nltype **doarcs();
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/*
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done();
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findcalls();
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flatprofheader();
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flatprofline();
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*/
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bool funcsymbol();
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/*
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getnfile();
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getpfile();
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getstrtab();
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getsymtab();
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gettextspace();
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gprofheader();
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gprofline();
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main();
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*/
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unsigned long max();
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int membercmp();
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unsigned long min();
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nltype *nllookup();
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FILE *openpfile();
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/*
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printchildren();
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printcycle();
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printgprof();
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printmembers();
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printname();
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printparents();
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printprof();
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readsamples();
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*/
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int printnameonly();
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unsigned long reladdr();
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/*
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sortchildren();
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sortmembers();
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sortparents();
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tally();
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timecmp();
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topcmp();
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*/
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int totalcmp();
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/*
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valcmp();
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*/
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#define LESSTHAN -1
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#define EQUALTO 0
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#define GREATERTHAN 1
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#define DFNDEBUG 1
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#define CYCLEDEBUG 2
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#define ARCDEBUG 4
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#define TALLYDEBUG 8
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#define TIMEDEBUG 16
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#define SAMPLEDEBUG 32
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#define AOUTDEBUG 64
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#define CALLDEBUG 128
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#define LOOKUPDEBUG 256
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#define PROPDEBUG 512
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#define ANYDEBUG 1024
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