pp/opgprof_options.cpp

   1 /**
   2  * @file opgprof_options.cpp
   3  * Options for opgprof tool
   4  *
   5  * @remark Copyright 2003 OProfile authors
   6  * @remark Read the file COPYING
   7  *
   8  * @author John Levon
   9  * @author Philippe Elie
  10  */
  11
  12 #include <cstdlib>
  13
  14 #include <vector>
  15 #include <list>
  16 #include <iterator>
  17 #include <iostream>
  18 #include <cstdlib>
  19
  20 #include "opgprof_options.h"
  21 #include "popt_options.h"
  22 #include "cverb.h"
  23 #include "profile_spec.h"
  24 #include "arrange_profiles.h"
  25
  26 using namespace std;
  27
  28 profile_classes classes;
  29 inverted_profile image_profile;
  30
  31 namespace options {
  32         string gmon_filename = "gmon.out";
  33
  34         // Ugly, for build only
  35         demangle_type demangle;
  36 }
  37
  38
  39 namespace {
  40
  41 popt::option options_array[] = {
  42         popt::option(options::gmon_filename, "output-filename", 'o',
  43                      "output filename, defaults to gmon.out if not specified",
  44                      "filename"),
  45         popt::option(options::threshold_opt, "threshold", 't',
  46                      "minimum percentage needed to produce output",
  47                      "percent"),
  48 };
  49
  50
  51 bool try_merge_profiles(profile_spec const & spec, bool exclude_dependent)
  52 {
  53         list<string> sample_files = spec.generate_file_list(exclude_dependent, false);
  54
  55         cverb << vsfile
  56               << "Matched sample files: " << sample_files.size() << endl;
  57         copy(sample_files.begin(), sample_files.end(),
  58              ostream_iterator<string>(cverb << vsfile, "\n"));
  59
  60         // opgprof merge all by default
  61         merge_option merge_by;
  62         merge_by.cpu = true;
  63         merge_by.lib = true;
  64         merge_by.tid = true;
  65         merge_by.tgid = true;
  66         merge_by.unitmask = true;
  67
  68         classes = arrange_profiles(sample_files, merge_by,
  69                                    spec.extra_found_images);
  70
  71         cverb << vsfile << "profile_classes:\n" << classes << endl;
  72
  73         size_t nr_classes = classes.v.size();
  74
  75         list<inverted_profile> iprofiles = invert_profiles(classes);
  76
  77         if (nr_classes == 1 && iprofiles.size() == 1) {
  78                 image_profile = *(iprofiles.begin());
  79                 return true;
  80         }
  81
  82         // come round for another try
  83         if (exclude_dependent)
  84                 return false;
  85
  86         if (iprofiles.empty()) {
  87                 cerr << "error: no sample files found: profile specification "
  88                      "too strict ?" << endl;
  89                 exit(EXIT_FAILURE);
  90         }
  91
  92         if (nr_classes > 1 || iprofiles.size() > 1) {
  93                 cerr << "error: specify exactly one binary to process "
  94                      "and give an event: or count: specification if necessary"
  95                      << endl;
  96                 exit(EXIT_FAILURE);
  97         }
  98
  99         return false;
 100 }
 101
 102 }  // anonymous namespace
 103
 104
 105 void handle_options(options::spec const & spec)
 106 {
 107         if (spec.first.size()) {
 108                 cerr << "differential profiles not allowed" << endl;
 109                 exit(EXIT_FAILURE);
 110         }
 111
 112         profile_spec const pspec =
 113                 profile_spec::create(spec.common, options::image_path,
 114                                      options::root_path);
 115
 116         cverb << vsfile << "output filename: " << options::gmon_filename
 117               << endl;
 118
 119         // we do a first try with exclude-dependent if it fails we include
 120         // dependent. First try should catch "opgrof /usr/bin/make" whilst
 121         // the second catch "opgprof /lib/libc-2.2.5.so"
 122         if (!try_merge_profiles(pspec, true))
 123                 try_merge_profiles(pspec, false);
 124 }