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5584f22bb3
the executable file, so it will work for both a.out and ELF format files. I have split the object format specific code into separate source files. It's cleaner than it was before, but it's still pretty crufty. Don't cheat on your make world for this update. A lot of things have to be rebuilt for it to work, including the compiler and all of the profiled libraries.
343 lines
9.5 KiB
C
343 lines
9.5 KiB
C
/*
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* Copyright (c) 1983, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)gprof.h 8.1 (Berkeley) 6/6/93
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/gmon.h>
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#include <stdio.h>
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#include <stdlib.h>
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#if vax
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# include "vax.h"
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#endif
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#if sparc
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# include "sparc.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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#if hp300
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# include "hp300.h"
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#endif
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#if luna68k
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# include "luna68k.h"
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#endif
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#if i386
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# include "i386.h"
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#endif
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#if mips
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# include "mips.h"
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#endif
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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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#ifdef GPROF4
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typedef int64_t UNIT;
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#else
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typedef u_short UNIT; /* unit of profiling */
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#endif
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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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/*
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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; /* num 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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struct arcstruct *arc_next; /* list of arcs on cycle */
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unsigned short arc_cyclecnt; /* num cycles involved in */
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unsigned short arc_flags; /* see below */
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};
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typedef struct arcstruct arctype;
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/*
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* arc flags
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*/
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#define DEADARC 0x01 /* time should not propagate across the arc */
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#define ONLIST 0x02 /* arc is on list of arcs in cycles */
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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 npropcall; /* times called by live arcs */
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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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short printflag; /* should this be printed? */
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short flags; /* see below */
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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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int parentcnt; /* number of live parent arcs */
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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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#define HASCYCLEXIT 0x08 /* node has arc exiting from cycle */
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#define CYCLEHEAD 0x10 /* node marked as head of a cycle */
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#define VISITED 0x20 /* node visited during a cycle */
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/*
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* The cycle list.
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* for each subcycle within an identified cycle, we gather
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* its size and the list of included arcs.
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*/
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struct cl {
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int size; /* length of cycle */
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struct cl *next; /* next member of list */
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arctype *list[1]; /* list of arcs in cycle */
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/* actually longer */
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};
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typedef struct cl cltype;
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arctype *archead; /* the head of arcs in current cycle list */
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cltype *cyclehead; /* the head of the list */
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int cyclecnt; /* the number of cycles found */
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#define CYCLEMAX 100 /* maximum cycles before cutting one of them */
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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 a struct phdr (defined in gmon.h)
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* and then an array of ncnt samples representing the
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* discretized program counter values.
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*
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* Backward compatible old style header
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*/
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struct ophdr {
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UNIT *lpc;
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UNIT *hpc;
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int ncnt;
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};
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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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unsigned char *textspace; /* text space of a.out in core */
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int cyclethreshold; /* with -C, minimum cycle size to ignore */
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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 Cflag; /* find cut-set to eliminate cycles */
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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 uflag; /* suppress symbols hidden from C */
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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 aout_getnfile(const char *, char ***);
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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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*/
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int elf_getnfile(const char *, char ***);
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/*
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findcalls();
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flatprofheader();
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flatprofline();
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*/
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/*
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getpfile();
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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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long operandlength();
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operandenum operandmode();
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char *operandname();
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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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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 BREAKCYCLE 1024
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#define SUBCYCLELIST 2048
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#define ANYDEBUG 4096
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