gprofng/src/gprofng.cc

   1 /* Copyright (C) 2021 Free Software Foundation, Inc.
   2    Contributed by Oracle.
   3
   4    This file is part of GNU Binutils.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3, or (at your option)
   9    any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, 51 Franklin Street - Fifth Floor, Boston,
  19    MA 02110-1301, USA.  */
  20
  21 #include "config.h"
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <unistd.h>
  25 #include <string.h>
  26 #include <errno.h>
  27 #include <getopt.h>
  28
  29 #include "Application.h"
  30 #include "i18n.h"
  31 #include "util.h"
  32
  33 static int verbose = 0;
  34
  35 class Gprofng : Application
  36 {
  37 public:
  38   Gprofng (int _argc, char *_argv[]);
  39   ~Gprofng ();
  40   void start();
  41   void usage();
  42
  43 private:
  44   void exec_cmd(char *tool_name, int argc, char **argv);
  45   int argc;
  46   char **argv;
  47 };
  48
  49 int
  50 main (int argc, char *argv[])
  51 {
  52   Gprofng *gprofng = new Gprofng (argc, argv);
  53   gprofng->start();
  54   delete gprofng;
  55   return 0;
  56 }
  57
  58 Gprofng::Gprofng (int _argc, char *_argv[]) : Application(_argc, _argv, NULL)
  59 {
  60   argc = _argc;
  61   argv = _argv;
  62 }
  63
  64 Gprofng::~Gprofng () { }
  65
  66 void
  67 Gprofng::usage ()
  68 {
  69   /*
  70    * Isolate the first line because it has an argument.
  71    * Otherwise it would be at the end of this long list.
  72    */
  73   printf ( GTXT (
  74     "Usage: %s [OPTION(S)] COMMAND [KEYWORD] [ARGUMENTS]\n"), whoami);
  75
  76   printf ( GTXT (
  77     "\n"
  78     "This is the driver for the GPROFNG tools suite to gather and analyze performance data.\n"
  79     "\n"
  80     "Options:\n"
  81     "\n"
  82     " --version           print the version number and exit.\n"
  83     " --help              print usage information and exit.\n"
  84     " --check             verify if the hardware and software environment is supported.\n"
  85     " --verbose {on|off}  enable (on) or disable (off) verbose mode; the default is \"off\".\n"
  86     "\n"
  87     "Commands:\n"
  88     "\n"
  89     "The driver supports various commands. These are listed below.\n"
  90     "\n"
  91     "It is also possible to invoke the lower level commands directly, but since these \n"
  92     "are subject to change, in particular the options, we recommend to use the driver.\n"
  93     "\n"
  94     "The man pages for the commands below can be viewed using the command name with\n"
  95     "\"gprofng\" replaced by \"gp\" and the spaces replaced by a dash (\"-\"). For\n"
  96     "example the man page name for \"gprofng collect app\" is \"gp-collect-app\".\n"
  97     "\n"
  98     "The following combination of commands and keywords are supported:\n"
  99     "\n"
 100     "Collect performance data\n"
 101     "\n"
 102     " gprofng collect app     collect application performance data.\n"
 103     "\n"
 104     "Display the performance results\n"
 105     "\n"
 106     " gprofng display text    display the performance data in ASCII format.\n"
 107     " gprofng display html    generate an HTML file from one or more experiments.\n"
 108 /*
 109     " gprofng display gui     invoke the GUI to graphically analyze the results.\n"
 110 */
 111     " gprofng display src     display source or disassembly with compiler annotations.\n"
 112     "\n"
 113     "Miscellaneous commands\n"
 114     "\n"
 115     " gprofng archive         include binaries and source code in an experiment directory.\n"
 116     "\n"
 117     "Environment:\n"
 118     "\n"
 119     "The following environment variables are supported:\n"
 120     "\n"
 121     " GPROFNG_MAX_CALL_STACK_DEPTH  set the depth of the call stack (default is 256).\n"
 122     "\n"
 123     " GPROFNG_USE_JAVA_OPTIONS      may be set when profiling a C/C++ application\n"
 124     "                               that uses dlopen() to execute Java code.\n"
 125     "\n"
 126     " GPROFNG_SSH_REMOTE_DISPLAY    use this variable to define the ssh command\n"
 127     "                               executed by the remote display tool.\n"
 128     "\n"
 129     " GPROFNG_SKIP_VALIDATION       set this variable to disable checking hardware,\n"
 130     "                               system, and Java versions.\n"
 131     "\n"
 132     " GPROFNG_ALLOW_CORE_DUMP       set this variable to allow a core file to be\n"
 133     "                               generated; otherwise an error report is created on /tmp.\n"
 134     "\n"
 135     " GPROFNG_ARCHIVE               use this variable to define the settings for automatic\n"
 136     "                               archiving upon experiment recording completion.\n"
 137     "\n"
 138     " GPROFNG_ARCHIVE_COMMON_DIR    set this variable to the location of the common archive.\n"
 139     "\n"
 140     " GPROFNG_JAVA_MAX_CALL_STACK_DEPTH  set the depth of the Java call stack; the default\n"
 141     "                                    is 256; set to 0 to disable capturing of call stacks.\n"
 142     "\n"
 143     " GPROFNG_JAVA_NATIVE_MAX_CALL_STACK_DEPTH  set the depth of the Java native call stack;\n"
 144     "                                           the default is 256; set to 0 to disable capturing\n"
 145     "                                           of call stacks (JNI and assembly call stacks\n"
 146     "                                           are not captured).\n"
 147     "\n"
 148     "Documentation:\n"
 149     "\n"
 150     "A getting started guide for gprofng is maintained as a Texinfo manual. If the info and\n"
 151     "gprofng programs are properly installed at your site, the command \"info gprofng\"\n"
 152     "should give you access to this document.\n"
 153     "\n"
 154     "See also:\n"
 155     "\n"
 156     "gp-archive(1), gp-collect-app(1), gp-display-html(1), gp-display-src(1), gp-display-text(1)\n"));
 157
 158 /*
 159   printf ( GTXT (
 160     "Usage: %s [--verbose] [--version] [--help] <tool-name> [<keyword>] <args>\n"
 161     "\n%s\n"
 162     "   archive         Archive binaries and sources\n"
 163     "   collect [app]   Collect performance data\n"
 164     "   display [text]  Print an ASCII report\n"
 165     "   display gui     Graphical tool for analyzing an experiment\n"
 166     "   display html    Generate an HTML file from an experiment\n"
 167     "   display src     Print source or dissasembly\n"),
 168     whoami, getenv ("_BUILDING_MANPAGE")
 169            ? "*Available subcommands*"
 170            : "Available Subcommands");
 171 */
 172 }
 173
 174 void
 175 Gprofng::exec_cmd (char *tool_name, int argc, char **argv)
 176 {
 177   static const struct
 178   {
 179     const char *tool_name;
 180     const char *keyword;
 181     const char *app_name;
 182   } app_names [] = {
 183     { "archive", NULL, "gp-archive"},
 184     { "collect", "app", "gp-collect-app"},
 185     { "collect", "kernel", "gp-collect-kernel"},
 186     { "display", "text", "gp-display-text"},
 187     { "display", "gui", "gp-display-gui"},
 188     { "display", "html", "gp-display-html"},
 189     { "display", "src", "gp-display-src"},
 190     { NULL, NULL}
 191   };
 192
 193   const char *keyword = argc > 1 ? argv[1] : "";
 194   int first = -1;
 195   int find_tool_name = -1;
 196   for (int i = 0; app_names[i].tool_name; i++)
 197     if (!strcmp (tool_name, app_names[i].tool_name))
 198       {
 199         if (app_names[i].keyword == NULL)
 200           {
 201             first = i;
 202             break;
 203           }
 204         if (!strcmp (keyword, app_names[i].keyword))
 205           {
 206             first = i;
 207             argc--;
 208             argv++;
 209             break;
 210           }
 211         if (find_tool_name == -1)
 212           find_tool_name = i;
 213       }
 214
 215   if (first == -1)
 216     {
 217       if (find_tool_name == -1)
 218         fprintf (stderr, GTXT ("%s: error: keyword '%s' is not supported\n"),
 219                  get_basename (get_name ()), tool_name);
 220       else if (*keyword == 0)
 221         fprintf (stderr, GTXT ("%s %s: error: no qualifier\n"),
 222                  get_basename (get_name ()), tool_name);
 223       else
 224         fprintf (stderr, GTXT ("%s %s: error: qualifier '%s' is not supported\n"),
 225                  get_basename (get_name ()), tool_name, keyword);
 226       exit (1);
 227     }
 228
 229   const char *aname = app_names[first].app_name;;
 230
 231   char **arr = (char **) malloc ((argc + 3) * sizeof (char *));
 232   int n = 0;
 233   char *pname = get_name ();
 234   arr[n++] = dbe_sprintf ("%.*s%s", (int) (get_basename (pname) - pname),
 235                             pname, aname);
 236   if (app_names[first].keyword)
 237     arr[n++] = dbe_sprintf ("--whoami=%s %s %s", whoami, tool_name,
 238                             app_names[first].keyword);
 239   else
 240     arr[n++] = dbe_sprintf ("--whoami=%s %s", whoami, tool_name);
 241   for (int i = 1; i < argc; i++)
 242     arr[n++] = argv[i];
 243   arr[n] = NULL;
 244   if (verbose)
 245     {
 246       printf ("gprofng::exec\n");
 247       for (int i = 0; arr[i]; i++)
 248         printf ("%5d: %s\n", i, arr[i]);
 249       printf("\n");
 250     }
 251   execv (arr[0], arr);
 252
 253   // If execv returns, it must have failed.
 254   fprintf (stderr, GTXT ("%s failed: %s\n"), arr[0], STR (strerror (errno)));
 255   exit(1);
 256 }
 257
 258 void
 259 Gprofng::start ()
 260 {
 261   if (argc == 1)
 262     {
 263       usage ();
 264       exit (0);
 265     }
 266   for (int i = 1; i < argc; i++)
 267     {
 268       char *s = argv[i];
 269       if (*s != '-')
 270         {
 271           exec_cmd(s, argc - i, argv + i);
 272           return;
 273         }
 274       else if (!strcmp (s, "--help"))
 275         {
 276           usage ();
 277           exit (0);
 278         }
 279       else if (!strcmp (s, "--version") || !strcmp (s, "-v"))
 280         {
 281            Application::print_version_info ();
 282            exit (0);
 283         }
 284       else if (!strcmp (s, "--verbose"))
 285         verbose = 1;
 286       else if (!strcmp (s, "--check"))
 287         {
 288           fprintf (stderr, GTXT ("%s: error: --check is not implemented yet\n"),
 289                    get_basename (get_name ()));
 290           exit (1);
 291         }
 292       else
 293         {
 294           fprintf (stderr, GTXT ("%s: error: unknown option %s\n"),
 295                    get_basename (get_name ()), s);
 296           exit(1);
 297         }
 298     }
 299   fprintf (stderr, GTXT ("%s: error: expected argument after options\n"),
 300            get_basename (get_name ()));
 301 }