| /* symtab.h |
| |
| Copyright (C) 2000-2021 Free Software Foundation, Inc. |
| |
| This file is part of GNU Binutils. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| MA 02110-1301, USA. */ |
| |
| #ifndef symtab_h |
| #define symtab_h |
| |
| /* For a profile to be intelligible to a human user, it is necessary |
| to map code-addresses into source-code information. Source-code |
| information can be any combination of: (i) function-name, (ii) |
| source file-name, and (iii) source line number. |
| |
| The symbol table is used to map addresses into source-code |
| information. */ |
| |
| #define NBBS 10 |
| |
| /* Symbol-entry. For each external in the specified file we gather |
| its address, the number of calls and compute its share of cpu time. */ |
| typedef struct sym |
| { |
| /* Common information: |
| |
| In the symbol-table, fields ADDR and FUNC_NAME are guaranteed |
| to contain valid information. FILE may be 0, if unknown and |
| LINE_NUM maybe 0 if unknown. */ |
| |
| bfd_vma addr; /* Address of entry point. */ |
| bfd_vma end_addr; /* End-address. */ |
| const char *name; /* Name of function this sym is from. */ |
| Source_File *file; /* Source file symbol comes from. */ |
| int line_num; /* Source line number. */ |
| unsigned int /* Boolean fields: */ |
| is_func:1, /* Is this a function entry point? */ |
| is_static:1, /* Is this a local (static) symbol? */ |
| is_bb_head:1, /* Is this the head of a basic-blk? */ |
| mapped:1, /* This symbol was mapped to another name. */ |
| has_been_placed:1; /* Have we placed this symbol? */ |
| unsigned long ncalls; /* How many times executed */ |
| int nuses; /* How many times this symbol appears in |
| a particular context. */ |
| bfd_vma bb_addr[NBBS]; /* Address of basic-block start. */ |
| unsigned long bb_calls[NBBS];/* How many times basic-block was called. */ |
| struct sym *next; /* For building chains of syms. */ |
| struct sym *prev; /* For building chains of syms. */ |
| |
| /* Profile specific information: */ |
| |
| /* Histogram specific information: */ |
| struct |
| { |
| double time; /* (Weighted) ticks in this routine. */ |
| bfd_vma scaled_addr; /* Scaled entry point. */ |
| } |
| hist; |
| |
| /* Call-graph specific information: */ |
| struct |
| { |
| unsigned long self_calls; /* How many calls to self. */ |
| double child_time; /* Cumulative ticks in children. */ |
| int index; /* Index in the graph list. */ |
| int top_order; /* Graph call chain top-sort order. */ |
| bool print_flag; /* Should this be printed? */ |
| struct |
| { |
| double fract; /* What % of time propagates. */ |
| double self; /* How much self time propagates. */ |
| double child; /* How much child time propagates. */ |
| } |
| prop; |
| struct |
| { |
| int num; /* Internal number of cycle on. */ |
| struct sym *head; /* Head of cycle. */ |
| struct sym *next; /* Next member of cycle. */ |
| } |
| cyc; |
| struct arc *parents; /* List of caller arcs. */ |
| struct arc *children; /* List of callee arcs. */ |
| } |
| cg; |
| } |
| Sym; |
| |
| /* Symbol-tables are always assumed to be sorted |
| in increasing order of addresses. */ |
| typedef struct |
| { |
| unsigned int len; /* # of symbols in this table. */ |
| Sym *base; /* First element in symbol table. */ |
| Sym *limit; /* Limit = base + len. */ |
| } |
| Sym_Table; |
| |
| extern Sym_Table symtab; /* The symbol table. */ |
| |
| extern void sym_init (Sym *); |
| extern void symtab_finalize (Sym_Table *); |
| #ifdef DEBUG |
| extern Sym *dbg_sym_lookup (Sym_Table *, bfd_vma); |
| #endif |
| extern Sym *sym_lookup (Sym_Table *, bfd_vma); |
| extern void find_call (Sym *, bfd_vma, bfd_vma); |
| |
| #endif /* symtab_h */ |