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options relating to script transformation: activation, dumping, selecting only a single function (for debugging)

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This commit is contained in:
Vern Paxson 2021-01-10 13:29:05 -08:00
parent 8f001062bf
commit 77e9610086
2 changed files with 35 additions and 5 deletions
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29
src/Options.cc
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@ -106,6 +106,7 @@ void usage(const char* prog, int code)
fprintf(stderr, " -I|--print-id <ID name> | print out given ID\n");
fprintf(stderr, " -N|--print-plugins | print available plugins and exit (-NN for verbose)\n");
fprintf(stderr, " -O|--optimize[=<option>] | enable script optimization (use -O help for options)\n");
fprintf(stderr, " -o|--optimize-only=<func> | enable script optimization only for the given function\n");
fprintf(stderr, " -P|--prime-dns | prime DNS\n");
fprintf(stderr, " -Q|--time | print execution time summary to stderr\n");
fprintf(stderr, " -S|--debug-rules | enable rule debugging\n");
@ -145,20 +146,34 @@ void usage(const char* prog, int code)
static void set_analysis_option(const char* opt, Options& opts)
{
if ( ! opt || util::streq(opt, "all") )
{
opts.analysis_options.inliner = true;
opts.analysis_options.activate = true;
return;
}
if ( util::streq(opt, "help") )
{
fprintf(stderr, "--optimize options:\n");
fprintf(stderr, " dump-xform dump transformed scripts to stdout; implies xform\n");
fprintf(stderr, " help print this list\n");
fprintf(stderr, " inline inline function calls\n");
fprintf(stderr, " recursive report on recursive functions and exit\n");
fprintf(stderr, " xform tranform scripts to \"reduced\" form\n");
exit(0);
}
if ( util::streq(opt, "inline") )
opts.analysis_options.inliner = true;
auto& a_o = opts.analysis_options;
if ( util::streq(opt, "dump-xform") )
a_o.activate = a_o.dump_xform = true;
else if ( util::streq(opt, "inline") )
a_o.inliner = true;
else if ( util::streq(opt, "recursive") )
opts.analysis_options.inliner =
opts.analysis_options.report_recursive = true;
a_o.inliner = a_o.report_recursive = true;
else if ( util::streq(opt, "xform") )
a_o.activate = true;
else
{
@ -279,6 +294,7 @@ Options parse_cmdline(int argc, char** argv)
{"save-seeds", required_argument, nullptr, 'H'},
{"print-plugins", no_argument, nullptr, 'N'},
{"optimize", required_argument, nullptr, 'O'},
{"optimize-only", required_argument, nullptr, 'o'},
{"prime-dns", no_argument, nullptr, 'P'},
{"time", no_argument, nullptr, 'Q'},
{"debug-rules", no_argument, nullptr, 'S'},
@ -306,7 +322,7 @@ Options parse_cmdline(int argc, char** argv)
};
char opts[256];
util::safe_strncpy(opts, "B:e:f:G:H:I:i:j::n:O:p:r:s:T:t:U:w:X:CDFNPQSWabdhv",
util::safe_strncpy(opts, "B:e:f:G:H:I:i:j::n:O:o:p:r:s:T:t:U:w:X:CDFNPQSWabdhv",
sizeof(opts));
#ifdef USE_PERFTOOLS_DEBUG
@ -431,6 +447,9 @@ Options parse_cmdline(int argc, char** argv)
case 'O':
set_analysis_option(optarg, rval);
break;
case 'o':
rval.analysis_options.only_func = util::copy_string(optarg);
break;
case 'P':
if ( rval.dns_mode != detail::DNS_DEFAULT )
usage(zargs[0], 1);