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[/] [openrisc/] [trunk/] [gnu-stable/] [binutils-2.20.1/] [gprof/] [symtab.h] - Blame information for rev 818

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/* symtab.h
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   Copyright 2000, 2001, 2002, 2004, 2007 Free Software Foundation, Inc.
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   This file is part of GNU Binutils.
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   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 3 of the License, or
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   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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   MA 02110-1301, USA.  */
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#ifndef symtab_h
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#define symtab_h
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/* For a profile to be intelligible to a human user, it is necessary
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   to map code-addresses into source-code information.  Source-code
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   information can be any combination of: (i) function-name, (ii)
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   source file-name, and (iii) source line number.
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   The symbol table is used to map addresses into source-code
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   information.  */
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#define NBBS 10
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/* Symbol-entry.  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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typedef struct sym
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  {
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    /* Common information:
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       In the symbol-table, fields ADDR and FUNC_NAME are guaranteed
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       to contain valid information.  FILE may be 0, if unknown and
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       LINE_NUM maybe 0 if unknown.  */
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    bfd_vma addr;               /* Address of entry point.  */
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    bfd_vma end_addr;           /* End-address.  */
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    const char *name;           /* Name of function this sym is from.  */
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    Source_File *file;          /* Source file symbol comes from.  */
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    int line_num;               /* Source line number.  */
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    unsigned int                /* Boolean fields:  */
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      is_func:1,                /*  Is this a function entry point?  */
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      is_static:1,              /*  Is this a local (static) symbol?  */
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      is_bb_head:1,             /*  Is this the head of a basic-blk?  */
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      mapped:1,                 /*  This symbol was mapped to another name.  */
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      has_been_placed:1;        /*  Have we placed this symbol?  */
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    unsigned long ncalls;       /* How many times executed  */
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    int nuses;                  /* How many times this symbol appears in
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                                   a particular context.  */
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    bfd_vma bb_addr[NBBS];      /* Address of basic-block start.  */
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    unsigned long bb_calls[NBBS];/* How many times basic-block was called.  */
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    struct sym *next;           /* For building chains of syms.  */
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    struct sym *prev;           /* For building chains of syms.  */
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    /* Profile specific information:  */
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    /* Histogram specific information:  */
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    struct
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      {
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        double time;            /* (Weighted) ticks in this routine.  */
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        bfd_vma scaled_addr;    /* Scaled entry point.  */
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      }
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    hist;
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    /* Call-graph specific information:  */
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    struct
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      {
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        unsigned long self_calls; /* How many calls to self.  */
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        double child_time;      /* Cumulative ticks in children.  */
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        int index;              /* Index in the graph list.  */
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        int top_order;          /* Graph call chain top-sort order.  */
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        bfd_boolean print_flag; /* Should this be printed?  */
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        struct
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          {
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            double fract;       /* What % of time propagates.  */
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            double self;        /* How much self time propagates.  */
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            double child;       /* How much child time propagates.  */
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          }
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        prop;
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        struct
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          {
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            int num;            /* Internal number of cycle on.  */
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            struct sym *head;   /* Head of cycle.  */
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            struct sym *next;   /* Next member of cycle.  */
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          }
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        cyc;
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        struct arc *parents;    /* List of caller arcs.  */
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        struct arc *children;   /* List of callee arcs.  */
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      }
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    cg;
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  }
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Sym;
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/* Symbol-tables are always assumed to be sorted
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   in increasing order of addresses.  */
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typedef struct
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  {
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    unsigned int len;           /* # of symbols in this table.  */
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    Sym *base;                  /* First element in symbol table.  */
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    Sym *limit;                 /* Limit = base + len.  */
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  }
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Sym_Table;
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extern Sym_Table symtab;        /* The symbol table.  */
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extern void sym_init        (Sym *);
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extern void symtab_finalize (Sym_Table *);
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#ifdef DEBUG
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extern Sym *dbg_sym_lookup  (Sym_Table *, bfd_vma);
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#endif
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extern Sym *sym_lookup      (Sym_Table *, bfd_vma);
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extern void find_call       (Sym *, bfd_vma, bfd_vma);
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#endif /* symtab_h */

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