| 1 | #include "cg_arcs.h" |
| 2 | #include "call_graph.h" |
| 3 | #include "core.h" |
| 4 | #include "gmon_io.h" |
| 5 | #include "gmon_out.h" |
| 6 | #include "symtab.h" |
| 7 | #include "sym_ids.h" |
| 8 | |
| 9 | extern void |
| 10 | DEFUN (cg_tally, (from_pc, self_pc, count), |
| 11 | bfd_vma from_pc AND bfd_vma self_pc AND int count) |
| 12 | { |
| 13 | Sym *parent; |
| 14 | Sym *child; |
| 15 | |
| 16 | parent = sym_lookup (&symtab, from_pc); |
| 17 | child = sym_lookup (&symtab, self_pc); |
| 18 | |
| 19 | /* |
| 20 | * Keep arc if it is on INCL_ARCS table or if the INCL_ARCS table |
| 21 | * is empty and it is not in the EXCL_ARCS table. |
| 22 | */ |
| 23 | if (sym_id_arc_is_present (&syms[INCL_ARCS], parent, child) |
| 24 | || (syms[INCL_ARCS].len == 0 |
| 25 | && !sym_id_arc_is_present (&syms[EXCL_ARCS], parent, child))) |
| 26 | { |
| 27 | child->ncalls += count; |
| 28 | DBG (TALLYDEBUG, |
| 29 | printf ("[cg_tally] arc from %s to %s traversed %d times\n", |
| 30 | parent->name, child->name, count)); |
| 31 | arc_add (parent, child, count); |
| 32 | } |
| 33 | } |
| 34 | |
| 35 | |
| 36 | /* |
| 37 | * Read a record from file IFP describing an arc in the function |
| 38 | * call-graph and the count of how many times the arc has been |
| 39 | * traversed. FILENAME is the name of file IFP and is provided |
| 40 | * for formatting error-messages only. |
| 41 | */ |
| 42 | void |
| 43 | DEFUN (cg_read_rec, (ifp, filename), FILE * ifp AND CONST char *filename) |
| 44 | { |
| 45 | bfd_vma from_pc, self_pc; |
| 46 | struct gmon_cg_arc_record arc; |
| 47 | int count; |
| 48 | |
| 49 | if (fread (&arc, sizeof (arc), 1, ifp) != 1) |
| 50 | { |
| 51 | fprintf (stderr, "%s: %s: unexpected end of file\n", |
| 52 | whoami, filename); |
| 53 | done (1); |
| 54 | } |
| 55 | from_pc = get_vma (core_bfd, (bfd_byte *) arc.from_pc); |
| 56 | self_pc = get_vma (core_bfd, (bfd_byte *) arc.self_pc); |
| 57 | count = bfd_get_32 (core_bfd, (bfd_byte *) arc.count); |
| 58 | DBG (SAMPLEDEBUG, |
| 59 | printf ("[cg_read_rec] frompc 0x%lx selfpc 0x%lx count %d\n", |
| 60 | from_pc, self_pc, count)); |
| 61 | /* add this arc: */ |
| 62 | cg_tally (from_pc, self_pc, count); |
| 63 | } |
| 64 | |
| 65 | |
| 66 | /* |
| 67 | * Write all the arcs in the call-graph to file OFP. FILENAME is |
| 68 | * the name of OFP and is provided for formatting error-messages |
| 69 | * only. |
| 70 | */ |
| 71 | void |
| 72 | DEFUN (cg_write_arcs, (ofp, filename), FILE * ofp AND const char *filename) |
| 73 | { |
| 74 | const unsigned char tag = GMON_TAG_CG_ARC; |
| 75 | struct gmon_cg_arc_record raw_arc; |
| 76 | Arc *arc; |
| 77 | Sym *sym; |
| 78 | |
| 79 | for (sym = symtab.base; sym < symtab.limit; sym++) |
| 80 | { |
| 81 | for (arc = sym->cg.children; arc; arc = arc->next_child) |
| 82 | { |
| 83 | put_vma (core_bfd, arc->parent->addr, (bfd_byte *) raw_arc.from_pc); |
| 84 | put_vma (core_bfd, arc->child->addr, (bfd_byte *) raw_arc.self_pc); |
| 85 | bfd_put_32 (core_bfd, arc->count, (bfd_byte *) raw_arc.count); |
| 86 | if (fwrite (&tag, sizeof (tag), 1, ofp) != 1 |
| 87 | || fwrite (&raw_arc, sizeof (raw_arc), 1, ofp) != 1) |
| 88 | { |
| 89 | perror (filename); |
| 90 | done (1); |
| 91 | } |
| 92 | DBG (SAMPLEDEBUG, |
| 93 | printf ("[cg_write_arcs] frompc 0x%lx selfpc 0x%lx count %d\n", |
| 94 | arc->parent->addr, arc->child->addr, arc->count)); |
| 95 | } |
| 96 | } |
| 97 | } |