[PATCH] Use binary search instead of linear search in corefile.c of gprof

[Nick Clifton]

Hi Homer,

>     Thank you. I have updated the patch with bsearch(). 

Thanks - I have applied your patch, along with the changelog entry below.

Please note for future submissions: it really helps if you can include a 
ChangeLog entry along with a patch.

Cheers
   Nick

gprof/ChangeLog
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.