| #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 */ |