112 lines
3.3 KiB
C
112 lines
3.3 KiB
C
#ifndef symtab_h
|
|
#define symtab_h
|
|
|
|
#include "bfd.h"
|
|
#include "gprof.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.
|
|
*/
|
|
|
|
#include "source.h"
|
|
|
|
#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 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 info: */
|
|
struct
|
|
{
|
|
double time; /* (weighted) ticks in this routine */
|
|
bfd_vma scaled_addr; /* scaled entry point */
|
|
}
|
|
hist;
|
|
|
|
/* call-graph specific info: */
|
|
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 PARAMS ((Sym * sym));
|
|
extern void symtab_finalize PARAMS ((Sym_Table * symtab));
|
|
extern Sym *sym_lookup PARAMS ((Sym_Table * symtab, bfd_vma address));
|
|
|
|
extern void find_call PARAMS ((Sym *, bfd_vma, bfd_vma));
|
|
|
|
#endif /* symtab_h */
|