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yosys/kernel/driver.cc

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/*
* yosys -- Yosys Open SYnthesis Suite
*
* Copyright (C) 2012 Clifford Wolf <clifford@clifford.at>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#include "kernel/yosys.h"
#include "libs/sha1/sha1.h"
#ifdef YOSYS_ENABLE_READLINE
# include <readline/readline.h>
# include <readline/history.h>
#endif
#include <stdio.h>
#include <string.h>
#include <limits.h>
#include <errno.h>
#if !defined(_WIN32) || defined(__MINGW32__)
# include <unistd.h>
#else
char *optarg;
int optind = 1, optcur = 1;
int getopt(int argc, char **argv, const char *optstring)
{
if (optind >= argc || argv[optind][0] != '-')
return -1;
bool takes_arg = false;
int opt = argv[optind][optcur];
for (int i = 0; optstring[i]; i++)
if (opt == optstring[i] && optstring[i + 1] == ':')
takes_arg = true;
if (!takes_arg) {
if (argv[optind][++optcur] == 0)
optind++, optcur = 1;
return opt;
}
if (argv[optind][++optcur]) {
optarg = argv[optind++] + optcur;
optcur = 1;
return opt;
}
optarg = argv[++optind];
optind++, optcur = 1;
return opt;
}
#endif
USING_YOSYS_NAMESPACE
int main(int argc, char **argv)
{
std::string frontend_command = "auto";
std::string backend_command = "auto";
std::vector<std::string> passes_commands;
std::vector<std::string> plugin_filenames;
std::string output_filename = "";
std::string scriptfile = "";
bool scriptfile_tcl = false;
bool got_output_filename = false;
bool print_banner = true;
bool print_stats = true;
bool call_abort = false;
#ifdef YOSYS_ENABLE_READLINE
int history_offset = 0;
std::string history_file;
if (getenv("HOME") != NULL) {
history_file = stringf("%s/.yosys_history", getenv("HOME"));
read_history(history_file.c_str());
history_offset = where_history();
}
#endif
int opt;
while ((opt = getopt(argc, argv, "AQTVSm:f:Hh:b:o:p:l:qv:ts:c:")) != -1)
{
switch (opt)
{
case 'A':
call_abort = true;
break;
case 'Q':
print_banner = false;
break;
case 'T':
print_stats = false;
break;
case 'V':
printf("%s\n", yosys_version_str);
exit(0);
case 'S':
passes_commands.push_back("synth");
break;
case 'm':
plugin_filenames.push_back(optarg);
break;
case 'f':
frontend_command = optarg;
break;
case 'H':
passes_commands.push_back("help");
break;
case 'h':
passes_commands.push_back(stringf("help %s", optarg));
break;
case 'b':
backend_command = optarg;
break;
case 'p':
passes_commands.push_back(optarg);
break;
case 'o':
output_filename = optarg;
got_output_filename = true;
break;
case 'l':
log_files.push_back(fopen(optarg, "wt"));
if (log_files.back() == NULL) {
fprintf(stderr, "Can't open log file `%s' for writing!\n", optarg);
exit(1);
}
break;
case 'q':
log_errfile = stderr;
break;
case 'v':
log_errfile = stderr;
log_verbose_level = atoi(optarg);
break;
case 't':
log_time = true;
break;
case 's':
scriptfile = optarg;
scriptfile_tcl = false;
break;
case 'c':
scriptfile = optarg;
scriptfile_tcl = true;
break;
default:
fprintf(stderr, "\n");
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 error messages to console\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, " -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);
}
}
if (log_errfile == NULL)
log_files.push_back(stderr);
if (print_banner) {
log("\n");
log(" /----------------------------------------------------------------------------\\\n");
log(" | |\n");
log(" | yosys -- Yosys Open SYnthesis Suite |\n");
log(" | |\n");
log(" | Copyright (C) 2012 Clifford Wolf <clifford@clifford.at> |\n");
log(" | |\n");
log(" | Permission to use, copy, modify, and/or distribute this software for any |\n");
log(" | purpose with or without fee is hereby granted, provided that the above |\n");
log(" | copyright notice and this permission notice appear in all copies. |\n");
log(" | |\n");
log(" | THE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |\n");
log(" | WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |\n");
log(" | MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |\n");
log(" | ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |\n");
log(" | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |\n");
log(" | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |\n");
log(" | OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |\n");
log(" | |\n");
log(" \\----------------------------------------------------------------------------/\n");
log("\n");
log(" %s\n", yosys_version_str);
log("\n");
}
if (print_stats)
log_hasher = new SHA1;
yosys_setup();
for (auto &fn : plugin_filenames)
load_plugin(fn, {});
if (optind == argc && passes_commands.size() == 0 && scriptfile.empty()) {
if (!got_output_filename)
backend_command = "";
shell(yosys_design);
}
while (optind < argc)
run_frontend(argv[optind++], frontend_command, yosys_design, output_filename == "-" ? &backend_command : NULL, NULL);
if (!scriptfile.empty()) {
if (scriptfile_tcl) {
#ifdef YOSYS_ENABLE_TCL
if (Tcl_EvalFile(yosys_get_tcl_interp(), scriptfile.c_str()) != TCL_OK)
log_error("TCL interpreter returned an error: %s\n", Tcl_GetStringResult(yosys_get_tcl_interp()));
#else
log_error("Can't exectue TCL script: this version of yosys is not built with TCL support enabled.\n");
#endif
} else
run_frontend(scriptfile, "script", yosys_design, output_filename == "-" ? &backend_command : NULL, NULL);
}
for (auto it = passes_commands.begin(); it != passes_commands.end(); it++)
run_pass(*it, yosys_design);
if (!backend_command.empty())
run_backend(output_filename, backend_command, yosys_design);
if (print_stats)
{
std::string hash = log_hasher->final().substr(0, 10);
delete log_hasher;
log_hasher = nullptr;
log_spacer();
#ifdef _WIN32
log("End of script. Logfile hash: %s\n", hash.c_str());
#else
struct rusage ru_buffer;
getrusage(RUSAGE_SELF, &ru_buffer);
log("End of script. Logfile hash: %s, CPU: user %.2fs system %.2fs\n", hash.c_str(),
ru_buffer.ru_utime.tv_sec + 1e-6 * ru_buffer.ru_utime.tv_usec,
ru_buffer.ru_stime.tv_sec + 1e-6 * ru_buffer.ru_stime.tv_usec);
#endif
log("%s\n", yosys_version_str);
int64_t total_ns = 0;
std::set<std::tuple<int64_t, int, std::string>> timedat;
for (auto &it : pass_register)
if (it.second->call_counter) {
total_ns += it.second->runtime_ns + 1;
timedat.insert(make_tuple(it.second->runtime_ns + 1, it.second->call_counter, it.first));
}
int out_count = 0;
log("Time spent:");
for (auto it = timedat.rbegin(); it != timedat.rend() && out_count < 4; it++, out_count++) {
if (out_count >= 2 && (std::get<0>(*it) < 1000000000 || int(100*std::get<0>(*it) / total_ns) < 20)) {
log(", ...");
break;
}
log("%s %d%% %dx %s (%d sec)", out_count ? "," : "", int(100*std::get<0>(*it) / total_ns),
std::get<1>(*it), std::get<2>(*it).c_str(), int(std::get<0>(*it) / 1000000000));
}
log("%s\n", out_count ? "" : " no commands executed");
}
#ifdef COVER_ACTIVE
if (getenv("YOSYS_COVER_DIR") || getenv("YOSYS_COVER_FILE"))
{
char filename_buffer[4096];
FILE *f;
if (getenv("YOSYS_COVER_DIR")) {
snprintf(filename_buffer, 4096, "%s/yosys_cover_%d_XXXXXX.txt", getenv("YOSYS_COVER_DIR"), getpid());
f = fdopen(mkstemps(filename_buffer, 4), "w");
} else {
snprintf(filename_buffer, 4096, "%s", getenv("YOSYS_COVER_FILE"));
f = fopen(filename_buffer, "a+");
}
if (f == NULL)
log_error("Can't create coverage file `%s'.\n", filename_buffer);
log("<writing coverage file \"%s\">\n", filename_buffer);
for (auto &it : get_coverage_data())
fprintf(f, "%-60s %10d %s\n", it.second.first.c_str(), it.second.second, it.first.c_str());
fclose(f);
}
#endif
if (call_abort)
abort();
#ifdef YOSYS_ENABLE_READLINE
if (!history_file.empty()) {
if (history_offset > 0) {
history_truncate_file(history_file.c_str(), 100);
append_history(where_history() - history_offset, history_file.c_str());
} else
write_history(history_file.c_str());
}
clear_history();
HIST_ENTRY **hist_list = history_list();
if (hist_list != NULL)
free(hist_list);
#endif
yosys_shutdown();
return 0;
}
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