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Better help message printing for command line tool

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This commit is contained in:
Clifford Wolf 2014-12-27 11:01:59 +01:00
parent 7751c491fb
commit d6ee6f653f
1 changed files with 77 additions and 72 deletions
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149
kernel/driver.cc
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@ -92,6 +92,82 @@ int main(int argc, char **argv)
} }
#endif #endif
if (argc == 2 && (!strcmp(argv[1], "-h") || !strcmp(argv[1], "-help") || !strcmp(argv[1], "--help")))
{
printf("\n");
printf("Usage: %s [options] [<infile> [..]]\n", argv[0]);
printf("\n");
printf(" -Q\n");
printf(" suppress printing of banner (copyright, disclaimer, version)\n");
printf("\n");
printf(" -T\n");
printf(" suppress printing of footer (log hash, version, timing statistics)\n");
printf("\n");
printf(" -q\n");
printf(" quiet operation. only write warnings and error messages to console\n");
printf(" use this option twice to also quiet warning messages\n");
printf("\n");
printf(" -v <level>\n");
printf(" print log headers up to level <level> to the console. (implies -q)\n");
printf("\n");
printf(" -t\n");
printf(" annotate all log messages with a time stamp\n");
printf("\n");
printf(" -d\n");
printf(" print more detailed timing stats at exit\n");
printf("\n");
printf(" -l logfile\n");
printf(" write log messages to the specified file\n");
printf("\n");
printf(" -o outfile\n");
printf(" write the design to the specified file on exit\n");
printf("\n");
printf(" -b backend\n");
printf(" use this backend for the output file specified on the command line\n");
printf("\n");
printf(" -f backend\n");
printf(" use the specified front for the input files on the command line\n");
printf("\n");
printf(" -H\n");
printf(" print the command list\n");
printf("\n");
printf(" -h command\n");
printf(" print the help message for the specified command\n");
printf("\n");
printf(" -s scriptfile\n");
printf(" execute the commands in the script file\n");
printf("\n");
printf(" -c tcl_scriptfile\n");
printf(" execute the commands in the tcl script file (see 'help tcl' for details)\n");
printf("\n");
printf(" -p command\n");
printf(" execute the commands\n");
printf("\n");
printf(" -m module_file\n");
printf(" load the specified module (aka plugin)\n");
printf("\n");
printf(" -A\n");
printf(" will call abort() at the end of the script. useful for debugging\n");
printf("\n");
printf(" -V\n");
printf(" print version information and exit\n");
printf("\n");
printf("The option -S is an shortcut for calling the \"synth\" command, a default\n");
printf("script for transforming the verilog input to a gate-level netlist. For example:\n");
printf("\n");
printf(" yosys -o output.blif -S input.v\n");
printf("\n");
printf("For more complex synthesis jobs it is recommended to use the read_* and write_*\n");
printf("commands in a script file instead of specifying input and output files on the\n");
printf("command line.\n");
printf("\n");
printf("When no commands, script files or input files are specified on the command\n");
printf("line, yosys automatically enters the interactive command mode. Use the 'help'\n");
printf("command to get information on the individual commands.\n");
printf("\n");
exit(0);
}
int opt; int opt;
while ((opt = getopt(argc, argv, "AQTVSm:f:Hh:b:o:p:l:qv:tds:c:")) != -1) while ((opt = getopt(argc, argv, "AQTVSm:f:Hh:b:o:p:l:qv:tds:c:")) != -1)
{ {
@ -165,78 +241,7 @@ int main(int argc, char **argv)
scriptfile_tcl = true; scriptfile_tcl = true;
break; break;
default: default:
fprintf(stderr, "\n"); fprintf(stderr, "Run '%s -h' for help.\n", argv[0]);
fprintf(stderr, "Usage: %s [-V -S -Q -T -q] [-v <level>[-t] [-l <logfile>] [-o <outfile>] [-f <frontend>] [-h cmd] \\\n", argv[0]);
fprintf(stderr, " %*s[{-s|-c} <scriptfile>] [-p <pass> [-p ..]] [-b <backend>] [-m <module_file>] [<infile> [..]]\n", int(strlen(argv[0])+1), "");
fprintf(stderr, "\n");
fprintf(stderr, " -Q\n");
fprintf(stderr, " suppress printing of banner (copyright, disclaimer, version)\n");
fprintf(stderr, "\n");
fprintf(stderr, " -T\n");
fprintf(stderr, " suppress printing of footer (log hash, version, timing statistics)\n");
fprintf(stderr, "\n");
fprintf(stderr, " -q\n");
fprintf(stderr, " quiet operation. only write warnings and error messages to console\n");
fprintf(stderr, " use this option twice to also quiet warning messages\n");
fprintf(stderr, "\n");
fprintf(stderr, " -v <level>\n");
fprintf(stderr, " print log headers up to level <level> to the console. (implies -q)\n");
fprintf(stderr, "\n");
fprintf(stderr, " -t\n");
fprintf(stderr, " annotate all log messages with a time stamp\n");
fprintf(stderr, "\n");
fprintf(stderr, " -d\n");
fprintf(stderr, " print more detailed timing stats at exit\n");
fprintf(stderr, "\n");
fprintf(stderr, " -l logfile\n");
fprintf(stderr, " write log messages to the specified file\n");
fprintf(stderr, "\n");
fprintf(stderr, " -o outfile\n");
fprintf(stderr, " write the design to the specified file on exit\n");
fprintf(stderr, "\n");
fprintf(stderr, " -b backend\n");
fprintf(stderr, " use this backend for the output file specified on the command line\n");
fprintf(stderr, "\n");
fprintf(stderr, " -f backend\n");
fprintf(stderr, " use the specified front for the input files on the command line\n");
fprintf(stderr, "\n");
fprintf(stderr, " -H\n");
fprintf(stderr, " print the command list\n");
fprintf(stderr, "\n");
fprintf(stderr, " -h command\n");
fprintf(stderr, " print the help message for the specified command\n");
fprintf(stderr, "\n");
fprintf(stderr, " -s scriptfile\n");
fprintf(stderr, " execute the commands in the script file\n");
fprintf(stderr, "\n");
fprintf(stderr, " -c tcl_scriptfile\n");
fprintf(stderr, " execute the commands in the tcl script file (see 'help tcl' for details)\n");
fprintf(stderr, "\n");
fprintf(stderr, " -p command\n");
fprintf(stderr, " execute the commands\n");
fprintf(stderr, "\n");
fprintf(stderr, " -m module_file\n");
fprintf(stderr, " load the specified module (aka plugin)\n");
fprintf(stderr, "\n");
fprintf(stderr, " -A\n");
fprintf(stderr, " will call abort() at the end of the script. useful for debugging\n");
fprintf(stderr, "\n");
fprintf(stderr, " -V\n");
fprintf(stderr, " print version information and exit\n");
fprintf(stderr, "\n");
fprintf(stderr, "The option -S is an shortcut for calling the \"synth\" command, a default\n");
fprintf(stderr, "script for transforming the verilog input to a gate-level netlist. For example:\n");
fprintf(stderr, "\n");
fprintf(stderr, " yosys -o output.blif -S input.v\n");
fprintf(stderr, "\n");
fprintf(stderr, "For more complex synthesis jobs it is recommended to use the read_* and write_*\n");
fprintf(stderr, "commands in a script file instead of specifying input and output files on the\n");
fprintf(stderr, "command line.\n");
fprintf(stderr, "\n");
fprintf(stderr, "When no commands, script files or input files are specified on the command\n");
fprintf(stderr, "line, yosys automatically enters the interactive command mode. Use the 'help'\n");
fprintf(stderr, "command to get information on the individual commands.\n");
fprintf(stderr, "\n");
exit(1); exit(1);
} }
} }