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#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 */
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