| 1 | /* symtab.h
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| 2 |
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| 3 | Copyright 2000, 2001, 2002 Free Software Foundation, Inc.
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| 4 |
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| 5 | This file is part of GNU Binutils.
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| 6 |
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| 7 | This program is free software; you can redistribute it and/or modify
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| 8 | it under the terms of the GNU General Public License as published by
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| 9 | the Free Software Foundation; either version 2 of the License, or
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| 10 | (at your option) any later version.
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| 11 |
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| 12 | This program is distributed in the hope that it will be useful,
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| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | GNU General Public License for more details.
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| 16 |
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| 17 | You should have received a copy of the GNU General Public License
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| 18 | along with this program; if not, write to the Free Software
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| 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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| 20 | |
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| 21 |
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| 22 | #ifndef symtab_h
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| 23 | #define symtab_h
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| 24 |
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| 25 | /* For a profile to be intelligible to a human user, it is necessary
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| 26 | to map code-addresses into source-code information. Source-code
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| 27 | information can be any combination of: (i) function-name, (ii)
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| 28 | source file-name, and (iii) source line number.
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| 29 |
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| 30 | The symbol table is used to map addresses into source-code
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| 31 | information. */
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| 32 |
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| 33 | #define NBBS 10
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| 34 |
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| 35 | /* Symbol-entry. For each external in the specified file we gather
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| 36 | its address, the number of calls and compute its share of cpu time. */
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| 37 | typedef struct sym
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| 38 | {
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| 39 | /* Common information:
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| 40 |
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| 41 | In the symbol-table, fields ADDR and FUNC_NAME are guaranteed
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| 42 | to contain valid information. FILE may be 0, if unknown and
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| 43 | LINE_NUM maybe 0 if unknown. */
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| 44 |
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| 45 | bfd_vma addr; /* Address of entry point. */
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| 46 | bfd_vma end_addr; /* End-address. */
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| 47 | const char *name; /* Name of function this sym is from. */
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| 48 | Source_File *file; /* Source file symbol comes from. */
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| 49 | int line_num; /* Source line number. */
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| 50 | unsigned int /* Boolean fields: */
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| 51 | is_func:1, /* Is this a function entry point? */
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| 52 | is_static:1, /* Is this a local (static) symbol? */
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| 53 | is_bb_head:1, /* Is this the head of a basic-blk? */
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| 54 | mapped:1, /* This symbol was mapped to another name. */
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| 55 | has_been_placed:1; /* Have we placed this symbol? */
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| 56 | unsigned long ncalls; /* How many times executed */
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| 57 | int nuses; /* How many times this symbol appears in
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| 58 | a particular context. */
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| 59 | bfd_vma bb_addr[NBBS]; /* Address of basic-block start. */
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| 60 | unsigned long bb_calls[NBBS];/* How many times basic-block was called. */
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| 61 | struct sym *next; /* For building chains of syms. */
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| 62 | struct sym *prev; /* For building chains of syms. */
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| 63 |
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| 64 | /* Profile specific information: */
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| 65 |
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| 66 | /* Histogram specific information: */
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| 67 | struct
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| 68 | {
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| 69 | double time; /* (Weighted) ticks in this routine. */
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| 70 | bfd_vma scaled_addr; /* Scaled entry point. */
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| 71 | }
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| 72 | hist;
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| 73 |
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| 74 | /* Call-graph specific information: */
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| 75 | struct
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| 76 | {
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| 77 | unsigned long self_calls; /* How many calls to self. */
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| 78 | double child_time; /* Cumulative ticks in children. */
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| 79 | int index; /* Index in the graph list. */
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| 80 | int top_order; /* Graph call chain top-sort order. */
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| 81 | bfd_boolean print_flag; /* Should this be printed? */
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| 82 | struct
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| 83 | {
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| 84 | double fract; /* What % of time propagates. */
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| 85 | double self; /* How much self time propagates. */
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| 86 | double child; /* How much child time propagates. */
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| 87 | }
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| 88 | prop;
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| 89 | struct
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| 90 | {
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| 91 | int num; /* Internal number of cycle on. */
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| 92 | struct sym *head; /* Head of cycle. */
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| 93 | struct sym *next; /* Next member of cycle. */
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| 94 | }
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| 95 | cyc;
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| 96 | struct arc *parents; /* List of caller arcs. */
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| 97 | struct arc *children; /* List of callee arcs. */
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| 98 | }
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| 99 | cg;
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| 100 | }
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| 101 | Sym;
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| 102 |
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| 103 | /* Symbol-tables are always assumed to be sorted
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| 104 | in increasing order of addresses. */
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| 105 | typedef struct
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| 106 | {
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| 107 | unsigned int len; /* # of symbols in this table. */
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| 108 | Sym *base; /* First element in symbol table. */
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| 109 | Sym *limit; /* Limit = base + len. */
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| 110 | }
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| 111 | Sym_Table;
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| 112 |
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| 113 | extern Sym_Table symtab; /* The symbol table. */
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| 114 |
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| 115 | extern void sym_init PARAMS ((Sym *));
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| 116 | extern void symtab_finalize PARAMS ((Sym_Table *));
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| 117 | #ifdef DEBUG
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| 118 | extern Sym *dbg_sym_lookup PARAMS ((Sym_Table *, bfd_vma));
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| 119 | #endif
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| 120 | extern Sym *sym_lookup PARAMS ((Sym_Table *, bfd_vma));
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| 121 | extern void find_call PARAMS ((Sym *, bfd_vma, bfd_vma));
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| 122 |
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| 123 | #endif /* symtab_h */
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