| 1 | /* symtab.h |
| 2 | |
| 3 | Copyright (C) 2000-2019 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GNU Binutils. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 20 | MA 02110-1301, USA. */ |
| 21 | \f |
| 22 | #ifndef symtab_h |
| 23 | #define symtab_h |
| 24 | |
| 25 | /* For a profile to be intelligible to a human user, it is necessary |
| 26 | to map code-addresses into source-code information. Source-code |
| 27 | information can be any combination of: (i) function-name, (ii) |
| 28 | source file-name, and (iii) source line number. |
| 29 | |
| 30 | The symbol table is used to map addresses into source-code |
| 31 | information. */ |
| 32 | |
| 33 | #define NBBS 10 |
| 34 | |
| 35 | /* Symbol-entry. For each external in the specified file we gather |
| 36 | its address, the number of calls and compute its share of cpu time. */ |
| 37 | typedef struct sym |
| 38 | { |
| 39 | /* Common information: |
| 40 | |
| 41 | In the symbol-table, fields ADDR and FUNC_NAME are guaranteed |
| 42 | to contain valid information. FILE may be 0, if unknown and |
| 43 | LINE_NUM maybe 0 if unknown. */ |
| 44 | |
| 45 | bfd_vma addr; /* Address of entry point. */ |
| 46 | bfd_vma end_addr; /* End-address. */ |
| 47 | const char *name; /* Name of function this sym is from. */ |
| 48 | Source_File *file; /* Source file symbol comes from. */ |
| 49 | int line_num; /* Source line number. */ |
| 50 | unsigned int /* Boolean fields: */ |
| 51 | is_func:1, /* Is this a function entry point? */ |
| 52 | is_static:1, /* Is this a local (static) symbol? */ |
| 53 | is_bb_head:1, /* Is this the head of a basic-blk? */ |
| 54 | mapped:1, /* This symbol was mapped to another name. */ |
| 55 | has_been_placed:1; /* Have we placed this symbol? */ |
| 56 | unsigned long ncalls; /* How many times executed */ |
| 57 | int nuses; /* How many times this symbol appears in |
| 58 | a particular context. */ |
| 59 | bfd_vma bb_addr[NBBS]; /* Address of basic-block start. */ |
| 60 | unsigned long bb_calls[NBBS];/* How many times basic-block was called. */ |
| 61 | struct sym *next; /* For building chains of syms. */ |
| 62 | struct sym *prev; /* For building chains of syms. */ |
| 63 | |
| 64 | /* Profile specific information: */ |
| 65 | |
| 66 | /* Histogram specific information: */ |
| 67 | struct |
| 68 | { |
| 69 | double time; /* (Weighted) ticks in this routine. */ |
| 70 | bfd_vma scaled_addr; /* Scaled entry point. */ |
| 71 | } |
| 72 | hist; |
| 73 | |
| 74 | /* Call-graph specific information: */ |
| 75 | struct |
| 76 | { |
| 77 | unsigned long self_calls; /* How many calls to self. */ |
| 78 | double child_time; /* Cumulative ticks in children. */ |
| 79 | int index; /* Index in the graph list. */ |
| 80 | int top_order; /* Graph call chain top-sort order. */ |
| 81 | bfd_boolean print_flag; /* Should this be printed? */ |
| 82 | struct |
| 83 | { |
| 84 | double fract; /* What % of time propagates. */ |
| 85 | double self; /* How much self time propagates. */ |
| 86 | double child; /* How much child time propagates. */ |
| 87 | } |
| 88 | prop; |
| 89 | struct |
| 90 | { |
| 91 | int num; /* Internal number of cycle on. */ |
| 92 | struct sym *head; /* Head of cycle. */ |
| 93 | struct sym *next; /* Next member of cycle. */ |
| 94 | } |
| 95 | cyc; |
| 96 | struct arc *parents; /* List of caller arcs. */ |
| 97 | struct arc *children; /* List of callee arcs. */ |
| 98 | } |
| 99 | cg; |
| 100 | } |
| 101 | Sym; |
| 102 | |
| 103 | /* Symbol-tables are always assumed to be sorted |
| 104 | in increasing order of addresses. */ |
| 105 | typedef struct |
| 106 | { |
| 107 | unsigned int len; /* # of symbols in this table. */ |
| 108 | Sym *base; /* First element in symbol table. */ |
| 109 | Sym *limit; /* Limit = base + len. */ |
| 110 | } |
| 111 | Sym_Table; |
| 112 | |
| 113 | extern Sym_Table symtab; /* The symbol table. */ |
| 114 | |
| 115 | extern void sym_init (Sym *); |
| 116 | extern void symtab_finalize (Sym_Table *); |
| 117 | #ifdef DEBUG |
| 118 | extern Sym *dbg_sym_lookup (Sym_Table *, bfd_vma); |
| 119 | #endif |
| 120 | extern Sym *sym_lookup (Sym_Table *, bfd_vma); |
| 121 | extern void find_call (Sym *, bfd_vma, bfd_vma); |
| 122 | |
| 123 | #endif /* symtab_h */ |