diff options
Diffstat (limited to 'gprof')
| -rw-r--r-- | gprof/ChangeLog | 10 | ||||
| -rw-r--r-- | gprof/cg_print.c | 17 | ||||
| -rw-r--r-- | gprof/corefile.c | 89 | ||||
| -rw-r--r-- | gprof/corefile.h | 11 |
4 files changed, 74 insertions, 53 deletions
diff --git a/gprof/ChangeLog b/gprof/ChangeLog index a359bd6..68428aa 100644 --- a/gprof/ChangeLog +++ b/gprof/ChangeLog @@ -1,3 +1,13 @@ +2009-06-16 Homer Xing <homer.xing@yahoo.com> + + * corefile.c (cmp_symbol_map): New function. + (read_function_mappins): Use qsort to sort the symbols. + (search_mapped_symbol): New function. + (core_create_function_syms): Use bsearch to find symbols. + * corefile.h (struct function_map): Add new bit-field: is_first. + * cg_print.c (cmp_symbol_map): New function. + (cg_print_file_ordering): Sort the symbol map. + 2009-06-15 Homer Xing <homer.xing@yahoo.com> * corefile.c (core_create_syms_from): Use BFD_VMA_FMT when diff --git a/gprof/cg_print.c b/gprof/cg_print.c index 58ff608..0b2e989 100644 --- a/gprof/cg_print.c +++ b/gprof/cg_print.c @@ -1,6 +1,7 @@ /* cg_print.c - Print routines for displaying call graphs. - Copyright 2000, 2001, 2002, 2004, 2007 Free Software Foundation, Inc. + Copyright 2000, 2001, 2002, 2004, 2007, 2009 + Free Software Foundation, Inc. This file is part of GNU Binutils. @@ -1212,12 +1213,22 @@ order_and_dump_functions_by_arcs (the_arcs, arc_count, all, } } +/* Compare two function_map structs based on file name. + We want to sort in ascending order. */ + +static int +cmp_symbol_map (const void * l, const void * r) +{ + return strcmp (((struct function_map *) l)->file_name, + ((struct function_map *) r)->file_name); +} + /* Print a suggested .o ordering for files on a link line based on profiling information. This uses the function placement code for the bulk of its work. */ void -cg_print_file_ordering () +cg_print_file_ordering (void) { unsigned long scratch_arc_count, index; Arc **scratch_arcs; @@ -1244,6 +1255,8 @@ cg_print_file_ordering () printf ("%s\n", symtab.base[index].name); } + qsort (symbol_map, symbol_map_count, sizeof (struct function_map), cmp_symbol_map); + /* Now output any .o's that didn't have any text symbols. */ last = NULL; for (index = 0; index < symbol_map_count; index++) diff --git a/gprof/corefile.c b/gprof/corefile.c index d7df904..9f1118a 100644 --- a/gprof/corefile.c +++ b/gprof/corefile.c @@ -61,12 +61,23 @@ parse_error (const char *filename) done (1); } +/* Compare two function_map structs based on function name. + We want to sort in ascending order. */ + +static int +cmp_symbol_map (const void * l, const void * r) +{ + return strcmp (((struct function_map *) l)->function_name, + ((struct function_map *) r)->function_name); +} + static void read_function_mappings (const char *filename) { - FILE *file = fopen (filename, "r"); + FILE * file = fopen (filename, "r"); char dummy[1024]; int count = 0; + unsigned int i; if (!file) { @@ -144,11 +155,16 @@ read_function_mappings (const char *filename) /* Record the size of the map table for future reference. */ symbol_map_count = count; -} + for (i = 0; i < symbol_map_count; ++i) + if (i == 0 || strcmp (symbol_map[i].file_name, symbol_map[i - 1].file_name)) + symbol_map[i].is_first = 1; + + qsort (symbol_map, symbol_map_count, sizeof (struct function_map), cmp_symbol_map); +} void -core_init (const char *aout_name) +core_init (const char * aout_name) { int core_sym_bytes; asymbol *synthsyms; @@ -532,17 +548,23 @@ core_create_syms_from (const char * sym_table_file) free (name); } +static int +search_mapped_symbol (const void * l, const void * r) +{ + return strcmp ((const char *) l, ((const struct function_map *) r)->function_name); +} + /* Read in symbol table from core. One symbol per function is entered. */ void -core_create_function_syms () +core_create_function_syms (void) { - bfd_vma min_vma = ~(bfd_vma) 0; + bfd_vma min_vma = ~ (bfd_vma) 0; bfd_vma max_vma = 0; int class; - long i, found, skip; - unsigned int j; + long i; + struct function_map * found; /* Pass 1 - determine upper bound on number of function names. */ symtab.len = 0; @@ -552,23 +574,12 @@ core_create_function_syms () if (!core_sym_class (core_syms[i])) continue; - /* This should be replaced with a binary search or hashed - search. Gross. - - Don't create a symtab entry for a function that has + /* Don't create a symtab entry for a function that has a mapping to a file, unless it's the first function in the file. */ - skip = 0; - for (j = 0; j < symbol_map_count; j++) - if (!strcmp (core_syms[i]->name, symbol_map[j].function_name)) - { - if (j > 0 && ! strcmp (symbol_map [j].file_name, - symbol_map [j - 1].file_name)) - skip = 1; - break; - } - - if (!skip) + found = bsearch (core_syms[i]->name, symbol_map, symbol_map_count, + sizeof (struct function_map), search_mapped_symbol); + if (found == NULL || found->is_first) ++symtab.len; } @@ -598,23 +609,9 @@ core_create_function_syms () continue; } - /* This should be replaced with a binary search or hashed - search. Gross. */ - skip = 0; - found = 0; - - for (j = 0; j < symbol_map_count; j++) - if (!strcmp (core_syms[i]->name, symbol_map[j].function_name)) - { - if (j > 0 && ! strcmp (symbol_map [j].file_name, - symbol_map [j - 1].file_name)) - skip = 1; - else - found = j; - break; - } - - if (skip) + found = bsearch (core_syms[i]->name, symbol_map, symbol_map_count, + sizeof (struct function_map), search_mapped_symbol); + if (found && ! found->is_first) continue; sym_init (symtab.limit); @@ -625,10 +622,9 @@ core_create_function_syms () if (sym_sec) symtab.limit->addr += bfd_get_section_vma (sym_sec->owner, sym_sec); - if (symbol_map_count - && !strcmp (core_syms[i]->name, symbol_map[found].function_name)) + if (found) { - symtab.limit->name = symbol_map[found].file_name; + symtab.limit->name = found->file_name; symtab.limit->mapped = 1; } else @@ -639,10 +635,11 @@ core_create_function_syms () /* Lookup filename and line number, if we can. */ { - const char *filename, *func_name; + const char * filename; + const char * func_name; - if (get_src_info (symtab.limit->addr, &filename, &func_name, - &symtab.limit->line_num)) + if (get_src_info (symtab.limit->addr, & filename, & func_name, + & symtab.limit->line_num)) { symtab.limit->file = source_file_lookup_path (filename); @@ -702,7 +699,7 @@ core_create_function_syms () One symbol per line of source code is entered. */ void -core_create_line_syms () +core_create_line_syms (void) { char *prev_name, *prev_filename; unsigned int prev_name_len, prev_filename_len; diff --git a/gprof/corefile.h b/gprof/corefile.h index ccdaf13..d3844f0 100644 --- a/gprof/corefile.h +++ b/gprof/corefile.h @@ -24,8 +24,9 @@ struct function_map { - char *function_name; - char *file_name; + char * function_name; + char * file_name; + unsigned int is_first:1; /* Is this the first symbol in an object file? */ }; extern struct function_map * symbol_map; @@ -33,9 +34,9 @@ extern unsigned int symbol_map_count; extern bfd * core_bfd; /* BFD for core-file. */ extern asection * core_text_sect; /* Core text section. */ -extern void * core_text_space; /* Text space of a.out in core. */ -extern int offset_to_code; /* Offset (in bytes) of code from entry - address of routine. */ +extern void * core_text_space; /* Text space of a.out in core. */ +extern int offset_to_code; /* Offset (in bytes) of code from entry + address of routine. */ extern void core_init (const char *); extern void core_get_text_space (bfd *); |