3 Copyright 2000, 2001 Free Software Foundation, Inc.
5 This file is part of GNU Binutils.
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 2 of the License, or
10 (at your option) any later version.
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.
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
27 /* For a profile to be intelligible to a human user, it is necessary
28 to map code-addresses into source-code information. Source-code
29 information can be any combination of: (i) function-name, (ii)
30 source file-name, and (iii) source line number.
32 The symbol table is used to map addresses into source-code
39 /* Symbol-entry. For each external in the specified file we gather
40 its address, the number of calls and compute its share of cpu time. */
43 /* Common information:
45 In the symbol-table, fields ADDR and FUNC_NAME are guaranteed
46 to contain valid information. FILE may be 0, if unknown and
47 LINE_NUM maybe 0 if unknown. */
49 bfd_vma addr
; /* Address of entry point. */
50 bfd_vma end_addr
; /* End-address. */
51 const char *name
; /* Name of function this sym is from. */
52 Source_File
*file
; /* Source file symbol comes from. */
53 int line_num
; /* Source line number. */
54 unsigned int /* Boolean fields: */
55 is_func
:1, /* Is this a function entry point? */
56 is_static
:1, /* Is this a local (static) symbol? */
57 is_bb_head
:1, /* Is this the head of a basic-blk? */
58 mapped
:1, /* This symbol was mapped to another name. */
59 has_been_placed
:1; /* Have we placed this symbol? */
60 unsigned long ncalls
; /* How many times executed */
61 int nuses
; /* How many times this symbol appears in
62 a particular context. */
63 bfd_vma bb_addr
[NBBS
]; /* Address of basic-block start. */
64 unsigned long bb_calls
[NBBS
];/* How many times basic-block was called. */
65 struct sym
*next
; /* For building chains of syms. */
66 struct sym
*prev
; /* For building chains of syms. */
68 /* Profile specific information: */
70 /* Histogram specific information: */
73 double time
; /* (Weighted) ticks in this routine. */
74 bfd_vma scaled_addr
; /* Scaled entry point. */
78 /* Call-graph specific information: */
81 unsigned long self_calls
; /* How many calls to self. */
82 double child_time
; /* Cumulative ticks in children. */
83 int index
; /* Index in the graph list. */
84 int top_order
; /* Graph call chain top-sort order. */
85 bool print_flag
; /* Should this be printed? */
88 double fract
; /* What % of time propagates. */
89 double self
; /* How much self time propagates. */
90 double child
; /* How much child time propagates. */
95 int num
; /* Internal number of cycle on. */
96 struct sym
*head
; /* Head of cycle. */
97 struct sym
*next
; /* Next member of cycle. */
100 struct arc
*parents
; /* List of caller arcs. */
101 struct arc
*children
; /* List of callee arcs. */
107 /* Symbol-tables are always assumed to be sorted
108 in increasing order of addresses. */
111 unsigned int len
; /* # of symbols in this table. */
112 Sym
*base
; /* First element in symbol table. */
113 Sym
*limit
; /* Limit = base + len. */
117 extern Sym_Table symtab
; /* The symbol table. */
119 extern void sym_init
PARAMS ((Sym
*));
120 extern void symtab_finalize
PARAMS ((Sym_Table
*));
121 extern Sym
*sym_lookup
PARAMS ((Sym_Table
*, bfd_vma
));
122 extern void find_call
PARAMS ((Sym
*, bfd_vma
, bfd_vma
));
124 #endif /* symtab_h */
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