diff options
author | Nick Clifton <nickc@redhat.com> | 2000-07-24 20:59:04 +0000 |
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committer | Nick Clifton <nickc@redhat.com> | 2000-07-24 20:59:04 +0000 |
commit | ef368dac31c8b58698e1f32b9d1f2dff3d099f7b (patch) | |
tree | fac7c1c056b39b99a10d1a512f69329e18da7153 /gprof/cg_print.c | |
parent | 53116e27b6d56500499d94c66002ad7258e4b1ef (diff) | |
download | gdb-ef368dac31c8b58698e1f32b9d1f2dff3d099f7b.zip gdb-ef368dac31c8b58698e1f32b9d1f2dff3d099f7b.tar.gz gdb-ef368dac31c8b58698e1f32b9d1f2dff3d099f7b.tar.bz2 |
Add GPL copyright notices to uncopyrighted files.
Add copy of GPL.
Diffstat (limited to 'gprof/cg_print.c')
-rw-r--r-- | gprof/cg_print.c | 411 |
1 files changed, 201 insertions, 210 deletions
diff --git a/gprof/cg_print.c b/gprof/cg_print.c index e645bc7..2461380 100644 --- a/gprof/cg_print.c +++ b/gprof/cg_print.c @@ -1,12 +1,31 @@ +/* cg_print.c - Print routines for displaying call graphs. + + Copyright (C) 2000 Free Software Foundation, Inc. + + This file is part of GNU Binutils. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + 02111-1307, USA. */ + #include "libiberty.h" #include "cg_arcs.h" #include "cg_print.h" #include "hist.h" #include "utils.h" -/* - * Return value of comparison functions used to sort tables: - */ +/* Return value of comparison functions used to sort tables. */ #define LESSTHAN -1 #define EQUALTO 0 #define GREATERTHAN 1 @@ -14,7 +33,7 @@ static void order_and_dump_functions_by_arcs PARAMS ((Arc **, unsigned long, int, Arc **, unsigned long *)); -/* declarations of automatically generated functions to output blurbs: */ +/* Declarations of automatically generated functions to output blurbs. */ extern void bsd_callg_blurb PARAMS ((FILE * fp)); extern void fsf_callg_blurb PARAMS ((FILE * fp)); @@ -25,39 +44,32 @@ static void DEFUN_VOID (print_header) { if (first_output) - { - first_output = FALSE; - } + first_output = FALSE; else - { - printf ("\f\n"); - } + printf ("\f\n"); + if (!bsd_style_output) { if (print_descriptions) - { - printf (_("\t\t Call graph (explanation follows)\n\n")); - } + printf (_("\t\t Call graph (explanation follows)\n\n")); else - { - printf (_("\t\t\tCall graph\n\n")); - } + printf (_("\t\t\tCall graph\n\n")); } + printf (_("\ngranularity: each sample hit covers %ld byte(s)"), (long) hist_scale * sizeof (UNIT)); + if (print_time > 0.0) - { - printf (_(" for %.2f%% of %.2f seconds\n\n"), - 100.0 / print_time, print_time / hz); - } + printf (_(" for %.2f%% of %.2f seconds\n\n"), + 100.0 / print_time, print_time / hz); else { printf (_(" no time propagated\n\n")); - /* - * This doesn't hurt, since all the numerators will be 0.0: - */ + + /* This doesn't hurt, since all the numerators will be 0.0. */ print_time = 1.0; } + if (bsd_style_output) { printf ("%6.6s %5.5s %7.7s %11.11s %7.7s/%-7.7s %-8.8s\n", @@ -75,10 +87,8 @@ DEFUN_VOID (print_header) } } +/* Print a cycle header. */ -/* - * Print a cycle header. - */ static void DEFUN (print_cycle, (cyc), Sym * cyc) { @@ -90,22 +100,18 @@ DEFUN (print_cycle, (cyc), Sym * cyc) : "%-6.6s %5.1f %7.2f %7.2f %7lu", buf, 100 * (cyc->cg.prop.self + cyc->cg.prop.child) / print_time, cyc->cg.prop.self / hz, cyc->cg.prop.child / hz, cyc->ncalls); + if (cyc->cg.self_calls != 0) - { - printf ("+%-7lu", cyc->cg.self_calls); - } + printf ("+%-7lu", cyc->cg.self_calls); else - { - printf (" %7.7s", ""); - } + printf (" %7.7s", ""); + printf (_(" <cycle %d as a whole> [%d]\n"), cyc->cg.cyc.num, cyc->cg.index); } +/* Compare LEFT and RIGHT membmer. Major comparison key is + CG.PROP.SELF+CG.PROP.CHILD, secondary key is NCALLS+CG.SELF_CALLS. */ -/* - * Compare LEFT and RIGHT membmer. Major comparison key is - * CG.PROP.SELF+CG.PROP.CHILD, secondary key is NCALLS+CG.SELF_CALLS. - */ static int DEFUN (cmp_member, (left, right), Sym * left AND Sym * right) { @@ -115,64 +121,56 @@ DEFUN (cmp_member, (left, right), Sym * left AND Sym * right) unsigned long right_calls = right->ncalls + right->cg.self_calls; if (left_time > right_time) - { - return GREATERTHAN; - } + return GREATERTHAN; + if (left_time < right_time) - { - return LESSTHAN; - } + return LESSTHAN; if (left_calls > right_calls) - { - return GREATERTHAN; - } + return GREATERTHAN; + if (left_calls < right_calls) - { - return LESSTHAN; - } + return LESSTHAN; + return EQUALTO; } +/* Sort members of a cycle. */ -/* - * Sort members of a cycle. - */ static void DEFUN (sort_members, (cyc), Sym * cyc) { Sym *todo, *doing, *prev; - /* - * Detach cycle members from cyclehead, and insertion sort them - * back on. - */ + + /* Detach cycle members from cyclehead, + and insertion sort them back on. */ todo = cyc->cg.cyc.next; cyc->cg.cyc.next = 0; + for (doing = todo; doing && doing->cg.cyc.next; doing = todo) { todo = doing->cg.cyc.next; + for (prev = cyc; prev->cg.cyc.next; prev = prev->cg.cyc.next) { if (cmp_member (doing, prev->cg.cyc.next) == GREATERTHAN) - { - break; - } + break; } + doing->cg.cyc.next = prev->cg.cyc.next; prev->cg.cyc.next = doing; } } +/* Print the members of a cycle. */ -/* - * Print the members of a cycle. - */ static void DEFUN (print_members, (cyc), Sym * cyc) { Sym *member; sort_members (cyc); + for (member = cyc->cg.cyc.next; member; member = member->cg.cyc.next) { printf (bsd_style_output @@ -180,30 +178,26 @@ DEFUN (print_members, (cyc), Sym * cyc) : "%6.6s %5.5s %7.2f %7.2f %7lu", "", "", member->cg.prop.self / hz, member->cg.prop.child / hz, member->ncalls); + if (member->cg.self_calls != 0) - { - printf ("+%-7lu", member->cg.self_calls); - } + printf ("+%-7lu", member->cg.self_calls); else - { - printf (" %7.7s", ""); - } + printf (" %7.7s", ""); + printf (" "); print_name (member); printf ("\n"); } } +/* Compare two arcs to/from the same child/parent. + - if one arc is a self arc, it's least. + - if one arc is within a cycle, it's less than. + - if both arcs are within a cycle, compare arc counts. + - if neither arc is within a cycle, compare with + time + child_time as major key + arc count as minor key. */ -/* - * Compare two arcs to/from the same child/parent. - * - if one arc is a self arc, it's least. - * - if one arc is within a cycle, it's less than. - * - if both arcs are within a cycle, compare arc counts. - * - if neither arc is within a cycle, compare with - * time + child_time as major key - * arc count as minor key - */ static int DEFUN (cmp_arc, (left, right), Arc * left AND Arc * right) { @@ -228,69 +222,62 @@ DEFUN (cmp_arc, (left, right), Arc * left AND Arc * right) right->count, right_child->ncalls); printf ("\n"); ); + if (left_parent == left_child) - { - return LESSTHAN; /* left is a self call */ - } + return LESSTHAN; /* Left is a self call. */ + if (right_parent == right_child) - { - return GREATERTHAN; /* right is a self call */ - } + return GREATERTHAN; /* Right is a self call. */ if (left_parent->cg.cyc.num != 0 && left_child->cg.cyc.num != 0 && left_parent->cg.cyc.num == left_child->cg.cyc.num) { - /* left is a call within a cycle */ + /* Left is a call within a cycle. */ if (right_parent->cg.cyc.num != 0 && right_child->cg.cyc.num != 0 && right_parent->cg.cyc.num == right_child->cg.cyc.num) { - /* right is a call within the cycle, too */ + /* Right is a call within the cycle, too. */ if (left->count < right->count) - { - return LESSTHAN; - } + return LESSTHAN; + if (left->count > right->count) - { - return GREATERTHAN; - } + return GREATERTHAN; + return EQUALTO; } else { - /* right isn't a call within the cycle */ + /* Right isn't a call within the cycle. */ return LESSTHAN; } } else { - /* left isn't a call within a cycle */ + /* Left isn't a call within a cycle. */ if (right_parent->cg.cyc.num != 0 && right_child->cg.cyc.num != 0 && right_parent->cg.cyc.num == right_child->cg.cyc.num) { - /* right is a call within a cycle */ + /* Right is a call within a cycle. */ return GREATERTHAN; } else { - /* neither is a call within a cycle */ + /* Neither is a call within a cycle. */ left_time = left->time + left->child_time; right_time = right->time + right->child_time; + if (left_time < right_time) - { - return LESSTHAN; - } + return LESSTHAN; + if (left_time > right_time) - { - return GREATERTHAN; - } + return GREATERTHAN; + if (left->count < right->count) - { - return LESSTHAN; - } + return LESSTHAN; + if (left->count > right->count) - { - return GREATERTHAN; - } + return GREATERTHAN; + return EQUALTO; } } @@ -302,32 +289,30 @@ DEFUN (sort_parents, (child), Sym * child) { Arc *arc, *detached, sorted, *prev; - /* - * Unlink parents from child, then insertion sort back on to - * sorted's parents. - * *arc the arc you have detached and are inserting. - * *detached the rest of the arcs to be sorted. - * sorted arc list onto which you insertion sort. - * *prev arc before the arc you are comparing. - */ + /* Unlink parents from child, then insertion sort back on to + sorted's parents. + *arc the arc you have detached and are inserting. + *detached the rest of the arcs to be sorted. + sorted arc list onto which you insertion sort. + *prev arc before the arc you are comparing. */ sorted.next_parent = 0; + for (arc = child->cg.parents; arc; arc = detached) { detached = arc->next_parent; - /* consider *arc as disconnected; insert it into sorted: */ + /* Consider *arc as disconnected; insert it into sorted. */ for (prev = &sorted; prev->next_parent; prev = prev->next_parent) { if (cmp_arc (arc, prev->next_parent) != GREATERTHAN) - { - break; - } + break; } + arc->next_parent = prev->next_parent; prev->next_parent = arc; } - /* reattach sorted arcs to child: */ + /* Reattach sorted arcs to child. */ child->cg.parents = sorted.next_parent; } @@ -340,13 +325,10 @@ DEFUN (print_parents, (child), Sym * child) Sym *cycle_head; if (child->cg.cyc.head != 0) - { - cycle_head = child->cg.cyc.head; - } + cycle_head = child->cg.cyc.head; else - { - cycle_head = child; - } + cycle_head = child; + if (!child->cg.parents) { printf (bsd_style_output @@ -355,14 +337,16 @@ DEFUN (print_parents, (child), Sym * child) "", "", "", "", "", ""); return; } + sort_parents (child); + for (arc = child->cg.parents; arc; arc = arc->next_parent) { parent = arc->parent; if (child == parent || (child->cg.cyc.num != 0 && parent->cg.cyc.num == child->cg.cyc.num)) { - /* selfcall or call among siblings: */ + /* Selfcall or call among siblings. */ printf (bsd_style_output ? "%6.6s %5.5s %7.7s %11.11s %7lu %7.7s " : "%6.6s %5.5s %7.7s %7.7s %7lu %7.7s ", @@ -373,7 +357,7 @@ DEFUN (print_parents, (child), Sym * child) } else { - /* regular parent of child: */ + /* Regular parent of child. */ printf (bsd_style_output ? "%6.6s %5.5s %7.2f %11.2f %7lu/%-7lu " : "%6.6s %5.5s %7.2f %7.2f %7lu/%-7lu ", @@ -391,32 +375,31 @@ static void DEFUN (sort_children, (parent), Sym * parent) { Arc *arc, *detached, sorted, *prev; - /* - * Unlink children from parent, then insertion sort back on to - * sorted's children. - * *arc the arc you have detached and are inserting. - * *detached the rest of the arcs to be sorted. - * sorted arc list onto which you insertion sort. - * *prev arc before the arc you are comparing. - */ + + /* Unlink children from parent, then insertion sort back on to + sorted's children. + *arc the arc you have detached and are inserting. + *detached the rest of the arcs to be sorted. + sorted arc list onto which you insertion sort. + *prev arc before the arc you are comparing. */ sorted.next_child = 0; + for (arc = parent->cg.children; arc; arc = detached) { detached = arc->next_child; - /* consider *arc as disconnected; insert it into sorted: */ + /* Consider *arc as disconnected; insert it into sorted. */ for (prev = &sorted; prev->next_child; prev = prev->next_child) { if (cmp_arc (arc, prev->next_child) != LESSTHAN) - { - break; - } + break; } + arc->next_child = prev->next_child; prev->next_child = arc; } - /* reattach sorted children to parent: */ + /* Reattach sorted children to parent. */ parent->cg.children = sorted.next_child; } @@ -429,13 +412,14 @@ DEFUN (print_children, (parent), Sym * parent) sort_children (parent); arc = parent->cg.children; + for (arc = parent->cg.children; arc; arc = arc->next_child) { child = arc->child; if (child == parent || (child->cg.cyc.num != 0 && child->cg.cyc.num == parent->cg.cyc.num)) { - /* self call or call to sibling: */ + /* Self call or call to sibling. */ printf (bsd_style_output ? "%6.6s %5.5s %7.7s %11.11s %7lu %7.7s " : "%6.6s %5.5s %7.7s %7.7s %7lu %7.7s ", @@ -445,7 +429,7 @@ DEFUN (print_children, (parent), Sym * parent) } else { - /* regular child of parent: */ + /* Regular child of parent. */ printf (bsd_style_output ? "%6.6s %5.5s %7.2f %11.2f %7lu/%-7lu " : "%6.6s %5.5s %7.2f %7.2f %7lu/%-7lu ", @@ -470,30 +454,28 @@ DEFUN (print_line, (np), Sym * np) : "%-6.6s %5.1f %7.2f %7.2f", buf, 100 * (np->cg.prop.self + np->cg.prop.child) / print_time, np->cg.prop.self / hz, np->cg.prop.child / hz); + if ((np->ncalls + np->cg.self_calls) != 0) { printf (" %7lu", np->ncalls); + if (np->cg.self_calls != 0) - { printf ("+%-7lu ", np->cg.self_calls); - } else - { printf (" %7.7s ", ""); - } } else { printf (" %7.7s %7.7s ", "", ""); } + print_name (np); printf ("\n"); } -/* - * Print dynamic call graph. - */ +/* Print dynamic call graph. */ + void DEFUN (cg_print, (timesortsym), Sym ** timesortsym) { @@ -501,26 +483,24 @@ DEFUN (cg_print, (timesortsym), Sym ** timesortsym) Sym *parent; if (print_descriptions && bsd_style_output) - { - bsd_callg_blurb (stdout); - } + bsd_callg_blurb (stdout); print_header (); for (index = 0; index < symtab.len + num_cycles; ++index) { parent = timesortsym[index]; + if ((ignore_zeros && parent->ncalls == 0 && parent->cg.self_calls == 0 && parent->cg.prop.self == 0 && parent->cg.prop.child == 0) || !parent->cg.print_flag || (line_granularity && ! parent->is_func)) - { - continue; - } + continue; + if (!parent->name && parent->cg.cyc.num != 0) { - /* cycle header: */ + /* Cycle header. */ print_cycle (parent); print_members (parent); } @@ -530,17 +510,20 @@ DEFUN (cg_print, (timesortsym), Sym ** timesortsym) print_line (parent); print_children (parent); } + if (bsd_style_output) printf ("\n"); + printf ("-----------------------------------------------\n"); + if (bsd_style_output) printf ("\n"); } + free (timesortsym); + if (print_descriptions && !bsd_style_output) - { - fsf_callg_blurb (stdout); - } + fsf_callg_blurb (stdout); } @@ -563,44 +546,44 @@ DEFUN_VOID (cg_print_index) Sym **name_sorted_syms, *sym; const char *filename; char buf[20]; - int column_width = (output_width - 1) / 3; /* don't write in last col! */ - /* - * Now, sort regular function name alphabetically to create an - * index: - */ + int column_width = (output_width - 1) / 3; /* Don't write in last col! */ + + /* Now, sort regular function name + alphabetically to create an index. */ name_sorted_syms = (Sym **) xmalloc ((symtab.len + num_cycles) * sizeof (Sym *)); + for (index = 0, nnames = 0; index < symtab.len; index++) { if (ignore_zeros && symtab.base[index].ncalls == 0 && symtab.base[index].hist.time == 0) - { - continue; - } + continue; + name_sorted_syms[nnames++] = &symtab.base[index]; } + qsort (name_sorted_syms, nnames, sizeof (Sym *), cmp_name); + for (index = 1, todo = nnames; index <= num_cycles; index++) - { - name_sorted_syms[todo++] = &cycle_header[index]; - } + name_sorted_syms[todo++] = &cycle_header[index]; + printf ("\f\n"); printf (_("Index by function name\n\n")); index = (todo + 2) / 3; + for (i = 0; i < index; i++) { col = 0; starting_col = 0; + for (j = i; j < todo; j += index) { sym = name_sorted_syms[j]; + if (sym->cg.print_flag) - { - sprintf (buf, "[%d]", sym->cg.index); - } + sprintf (buf, "[%d]", sym->cg.index); else - { - sprintf (buf, "(%d)", sym->cg.index); - } + sprintf (buf, "(%d)", sym->cg.index); + if (j < nnames) { if (bsd_style_output) @@ -610,27 +593,27 @@ DEFUN_VOID (cg_print_index) else { col += strlen (buf); + for (; col < starting_col + 5; ++col) - { - putchar (' '); - } + putchar (' '); + printf (" %s ", buf); col += print_name_only (sym); + if (!line_granularity && sym->is_static && sym->file) { filename = sym->file->name; + if (!print_path) { filename = strrchr (filename, '/'); + if (filename) - { - ++filename; - } + ++filename; else - { - filename = sym->file->name; - } + filename = sym->file->name; } + printf (" (%s)", filename); col += strlen (filename) + 3; } @@ -655,15 +638,19 @@ DEFUN_VOID (cg_print_index) col += strlen (buf); } } + starting_col += column_width; } + printf ("\n"); } + free (name_sorted_syms); } -/* Compare two arcs based on their usage counts. We want to sort - in descending order. */ +/* Compare two arcs based on their usage counts. + We want to sort in descending order. */ + static int DEFUN (cmp_arc_count, (left, right), const PTR left AND const PTR right) { @@ -678,8 +665,9 @@ DEFUN (cmp_arc_count, (left, right), const PTR left AND const PTR right) return 0; } -/* Compare two funtions based on their usage counts. We want to sort - in descending order. */ +/* Compare two funtions based on their usage counts. + We want to sort in descending order. */ + static int DEFUN (cmp_fun_nuses, (left, right), const PTR left AND const PTR right) { @@ -873,8 +861,8 @@ DEFUN_VOID (cg_print_function_ordering) An interesting variation would be to quit when we found multi-call site functions which account for some percentage of the arcs. */ - arc = sym->cg.children; + while (arc) { if (arc->parent != arc->child) @@ -884,6 +872,7 @@ DEFUN_VOID (cg_print_function_ordering) } arc = sym->cg.parents; + while (arc) { if (arc->parent != arc->child) @@ -895,13 +884,13 @@ DEFUN_VOID (cg_print_function_ordering) /* Keep track of how many symbols we're going to place. */ scratch_index = index; - /* A lie, but it makes identifying these functions easier - later. */ + /* A lie, but it makes identifying + these functions easier later. */ sym->has_been_placed = 1; } - /* Now walk through the temporary arcs and copy those we care about - into the high arcs array. */ + /* Now walk through the temporary arcs and copy + those we care about into the high arcs array. */ for (index = 0; index < scratch_arc_count; index++) { Arc *arc = scratch_arcs[index]; @@ -920,22 +909,22 @@ DEFUN_VOID (cg_print_function_ordering) } } - /* Dump the multi-site high usage functions which are not going - to be ordered by the main ordering algorithm. */ + /* Dump the multi-site high usage functions which are not + going to be ordered by the main ordering algorithm. */ for (index = 0; index < scratch_index; index++) { if (scratch_syms[index]->has_been_placed) printf ("%s\n", scratch_syms[index]->name); } - /* Now we can order the multi-site high use functions based on the - arcs between them. */ + /* Now we can order the multi-site high use + functions based on the arcs between them. */ qsort (high_arcs, high_arc_count, sizeof (Arc *), cmp_arc_count); order_and_dump_functions_by_arcs (high_arcs, high_arc_count, 1, unplaced_arcs, &unplaced_arc_count); - /* Order and dump the high use functions left, these typically - have only a few call sites. */ + /* Order and dump the high use functions left, + these typically have only a few call sites. */ order_and_dump_functions_by_arcs (arcs, numarcs, 0, unplaced_arcs, &unplaced_arc_count); @@ -1003,6 +992,7 @@ order_and_dump_functions_by_arcs (arcs, numarcs, all, total_arcs = 0; tmp_arcs = 0; + for (index = 0; index < numarcs; index++) { Sym *sym1, *sym2; @@ -1062,7 +1052,7 @@ order_and_dump_functions_by_arcs (arcs, numarcs, all, /* Choose the closest. */ child = next_count < prev_count ? next : prev; - } + } else if (! child->next && !child->prev) { int next_count = 0; @@ -1145,14 +1135,14 @@ order_and_dump_functions_by_arcs (arcs, numarcs, all, on where we've got space in the child. */ if (child->prev) { - /* parent-prev and child-next */ + /* parent-prev and child-next. */ parent->prev = child; child->next = parent; arcs[index]->has_been_placed = 1; } else { - /* parent-next and child-prev */ + /* parent-next and child-prev. */ parent->next = child; child->prev = parent; arcs[index]->has_been_placed = 1; @@ -1191,8 +1181,8 @@ order_and_dump_functions_by_arcs (arcs, numarcs, all, } } - /* If we want to place all the arcs, then output those which weren't - placed by the main algorithm. */ + /* If we want to place all the arcs, then output + those which weren't placed by the main algorithm. */ if (all) for (index = 0; index < numarcs; index++) { @@ -1212,7 +1202,8 @@ order_and_dump_functions_by_arcs (arcs, numarcs, all, on profiling information. This uses the function placement code for the bulk of its work. */ -struct function_map { +struct function_map +{ char *function_name; char *file_name; }; @@ -1253,8 +1244,8 @@ DEFUN_VOID (cg_print_file_ordering) { unsigned int index2; - /* Don't bother searching if this symbol is the - same as the previous one. */ + /* Don't bother searching if this symbol + is the same as the previous one. */ if (last && !strcmp (last, symbol_map[index].file_name)) continue; @@ -1267,8 +1258,8 @@ DEFUN_VOID (cg_print_file_ordering) break; } - /* If we didn't find it in the symbol table, then it must be a .o - with no text symbols. Output it last. */ + /* If we didn't find it in the symbol table, then it must + be a .o with no text symbols. Output it last. */ if (index2 == symtab.len) printf ("%s\n", symbol_map[index].file_name); last = symbol_map[index].file_name; |