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authorRichard Henderson <rth@redhat.com>1999-05-03 07:29:11 +0000
committerRichard Henderson <rth@redhat.com>1999-05-03 07:29:11 +0000
commit252b5132c753830d5fd56823373aed85f2a0db63 (patch)
tree1af963bfd8d3e55167b81def4207f175eaff3a56 /gprof/symtab.h
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19990502 sourceware importbinu_ss_19990502
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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 */