Commit | Line | Data |
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5489fcc3 KR |
1 | #include "cg_arcs.h" |
2 | #include "call_graph.h" | |
43870aec | 3 | #include "corefile.h" |
5489fcc3 KR |
4 | #include "gmon_io.h" |
5 | #include "gmon_out.h" | |
6 | #include "symtab.h" | |
7 | #include "sym_ids.h" | |
8 | ||
9 | extern void | |
12516a37 KR |
10 | DEFUN (cg_tally, (from_pc, self_pc, count), |
11 | bfd_vma from_pc AND bfd_vma self_pc AND int count) | |
5489fcc3 | 12 | { |
12516a37 KR |
13 | Sym *parent; |
14 | Sym *child; | |
5489fcc3 | 15 | |
12516a37 KR |
16 | parent = sym_lookup (&symtab, from_pc); |
17 | child = sym_lookup (&symtab, self_pc); | |
5489fcc3 | 18 | |
7862d7d0 ILT |
19 | if (child == NULL || parent == NULL) |
20 | return; | |
21 | ||
22 | /* If we're doing line-by-line profiling, both the parent and the | |
23 | child will probably point to line symbols instead of function | |
24 | symbols. For the parent this is fine, since this identifies the | |
25 | line number in the calling routing, but the child should always | |
26 | point to a function entry point, so we back up in the symbol | |
27 | table until we find it. | |
28 | ||
29 | For normal profiling, is_func will be set on all symbols, so this | |
30 | code will do nothing. */ | |
31 | ||
32 | while (child >= symtab.base && ! child->is_func) | |
33 | --child; | |
34 | ||
35 | if (child < symtab.base) | |
36 | return; | |
37 | ||
12516a37 KR |
38 | /* |
39 | * Keep arc if it is on INCL_ARCS table or if the INCL_ARCS table | |
40 | * is empty and it is not in the EXCL_ARCS table. | |
41 | */ | |
42 | if (sym_id_arc_is_present (&syms[INCL_ARCS], parent, child) | |
43 | || (syms[INCL_ARCS].len == 0 | |
44 | && !sym_id_arc_is_present (&syms[EXCL_ARCS], parent, child))) | |
5489fcc3 | 45 | { |
12516a37 KR |
46 | child->ncalls += count; |
47 | DBG (TALLYDEBUG, | |
16a02269 | 48 | printf (_("[cg_tally] arc from %s to %s traversed %d times\n"), |
5489fcc3 | 49 | parent->name, child->name, count)); |
12516a37 | 50 | arc_add (parent, child, count); |
03c35bcb KR |
51 | } |
52 | } | |
5489fcc3 KR |
53 | |
54 | ||
55 | /* | |
56 | * Read a record from file IFP describing an arc in the function | |
57 | * call-graph and the count of how many times the arc has been | |
58 | * traversed. FILENAME is the name of file IFP and is provided | |
59 | * for formatting error-messages only. | |
60 | */ | |
61 | void | |
12516a37 | 62 | DEFUN (cg_read_rec, (ifp, filename), FILE * ifp AND CONST char *filename) |
5489fcc3 | 63 | { |
12516a37 KR |
64 | bfd_vma from_pc, self_pc; |
65 | struct gmon_cg_arc_record arc; | |
66 | int count; | |
5489fcc3 | 67 | |
12516a37 KR |
68 | if (fread (&arc, sizeof (arc), 1, ifp) != 1) |
69 | { | |
16a02269 | 70 | fprintf (stderr, _("%s: %s: unexpected end of file\n"), |
12516a37 KR |
71 | whoami, filename); |
72 | done (1); | |
03c35bcb | 73 | } |
12516a37 KR |
74 | from_pc = get_vma (core_bfd, (bfd_byte *) arc.from_pc); |
75 | self_pc = get_vma (core_bfd, (bfd_byte *) arc.self_pc); | |
76 | count = bfd_get_32 (core_bfd, (bfd_byte *) arc.count); | |
77 | DBG (SAMPLEDEBUG, | |
78 | printf ("[cg_read_rec] frompc 0x%lx selfpc 0x%lx count %d\n", | |
5489fcc3 | 79 | from_pc, self_pc, count)); |
12516a37 KR |
80 | /* add this arc: */ |
81 | cg_tally (from_pc, self_pc, count); | |
03c35bcb | 82 | } |
5489fcc3 KR |
83 | |
84 | ||
85 | /* | |
86 | * Write all the arcs in the call-graph to file OFP. FILENAME is | |
87 | * the name of OFP and is provided for formatting error-messages | |
88 | * only. | |
89 | */ | |
90 | void | |
12516a37 | 91 | DEFUN (cg_write_arcs, (ofp, filename), FILE * ofp AND const char *filename) |
5489fcc3 | 92 | { |
12516a37 KR |
93 | const unsigned char tag = GMON_TAG_CG_ARC; |
94 | struct gmon_cg_arc_record raw_arc; | |
95 | Arc *arc; | |
96 | Sym *sym; | |
5489fcc3 | 97 | |
12516a37 KR |
98 | for (sym = symtab.base; sym < symtab.limit; sym++) |
99 | { | |
100 | for (arc = sym->cg.children; arc; arc = arc->next_child) | |
101 | { | |
102 | put_vma (core_bfd, arc->parent->addr, (bfd_byte *) raw_arc.from_pc); | |
103 | put_vma (core_bfd, arc->child->addr, (bfd_byte *) raw_arc.self_pc); | |
104 | bfd_put_32 (core_bfd, arc->count, (bfd_byte *) raw_arc.count); | |
105 | if (fwrite (&tag, sizeof (tag), 1, ofp) != 1 | |
106 | || fwrite (&raw_arc, sizeof (raw_arc), 1, ofp) != 1) | |
5489fcc3 | 107 | { |
12516a37 KR |
108 | perror (filename); |
109 | done (1); | |
03c35bcb | 110 | } |
12516a37 KR |
111 | DBG (SAMPLEDEBUG, |
112 | printf ("[cg_write_arcs] frompc 0x%lx selfpc 0x%lx count %d\n", | |
113 | arc->parent->addr, arc->child->addr, arc->count)); | |
03c35bcb KR |
114 | } |
115 | } | |
116 | } |