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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
#ifdef YOSYS_ENABLE_EDITLINE
# include <editline/readline.h>
#endif
#include <stdio.h>
#include <string.h>
#include <limits.h>
#include <errno.h>
#ifdef __linux__
# include <sys/resource.h>
# include <sys/types.h>
# include <unistd.h>
#endif
#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
#ifdef EMSCRIPTEN
# include <sys/stat.h>
# include <sys/types.h>
extern "C" int main(int, char**);
extern "C" void run(const char*);
extern "C" const char *errmsg();
extern "C" const char *prompt();
int main(int, char**)
{
mkdir("/work", 0777);
chdir("/work");
log_files.push_back(stdout);
log_error_stderr = true;
yosys_banner();
yosys_setup();
}
void run(const char *command)
{
int selSize = GetSize(yosys_get_design()->selection_stack);
try {
log_last_error = "Internal error (see JavaScript console for details)";
run_pass(command);
log_last_error = "";
} catch (...) {
while (GetSize(yosys_get_design()->selection_stack) > selSize)
yosys_get_design()->selection_stack.pop_back();
throw;
}
}
const char *errmsg()
{
return log_last_error.c_str();
}
const char *prompt()
{
const char *p = create_prompt(yosys_get_design(), 0);
while (*p == '\n') p++;
return p;
}
#else /* EMSCRIPTEN */
#if defined(YOSYS_ENABLE_READLINE) || defined(YOSYS_ENABLE_EDITLINE)
int yosys_history_offset = 0;
std::string yosys_history_file;
#endif
void yosys_atexit()
{
#if defined(YOSYS_ENABLE_READLINE) || defined(YOSYS_ENABLE_EDITLINE)
if (!yosys_history_file.empty()) {
#if defined(YOSYS_ENABLE_READLINE)
if (yosys_history_offset > 0) {
history_truncate_file(yosys_history_file.c_str(), 100);
append_history(where_history() - yosys_history_offset, yosys_history_file.c_str());
} else
write_history(yosys_history_file.c_str());
#else
write_history(yosys_history_file.c_str());
#endif
}
clear_history();
#if defined(YOSYS_ENABLE_READLINE)
HIST_ENTRY **hist_list = history_list();
if (hist_list != NULL)
free(hist_list);
#endif
#endif
}
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 = "";
std::string depsfile = "";
bool scriptfile_tcl = false;
bool got_output_filename = false;
bool print_banner = true;
bool print_stats = true;
bool call_abort = false;
bool timing_details = false;
bool mode_v = false;
bool mode_q = false;
#if defined(YOSYS_ENABLE_READLINE) || defined(YOSYS_ENABLE_EDITLINE)
if (getenv("HOME") != NULL) {
yosys_history_file = stringf("%s/.yosys_history", getenv("HOME"));
read_history(yosys_history_file.c_str());
yosys_history_offset = where_history();
}
#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. (this\n");
printf(" implies -q for everything except the 'End of script.' message.)\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(" -L logfile\n");
printf(" like -l but open log file in line buffered mode\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 frontend\n");
printf(" use the specified frontend 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(" -X\n");
printf(" enable tracing of core data structure changes. for debugging\n");
printf("\n");
printf(" -M\n");
printf(" will slightly randomize allocated pointer addresses. for debugging\n");
printf("\n");
printf(" -A\n");
printf(" will call abort() at the end of the script. for debugging\n");
printf("\n");
printf(" -D <header_id>[:<filename>]\n");
printf(" dump the design when printing the specified log header to a file.\n");
printf(" yosys_dump_<header_id>.il is used as filename if none is specified.\n");
printf(" Use 'ALL' as <header_id> to dump at every header.\n");
printf("\n");
printf(" -W regex\n");
printf(" print a warning for all log messages matching the regex.\n");
printf("\n");
printf(" -w regex\n");
printf(" if a warning message matches the regex, it is printes as regular\n");
printf(" message instead.\n");
printf("\n");
printf(" -E <depsfile>\n");
printf(" write a Makefile dependencies file with in- and output file names\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;
while ((opt = getopt(argc, argv, "MXAQTVSm:f:Hh:b:o:p:l:L:qv:tds:c:W:w:D:E:")) != -1)
{
switch (opt)
{
case 'M':
memhasher_on();
break;
case 'X':
yosys_xtrace++;
break;
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':
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);
}
if (opt == 'L')
setvbuf(log_files.back(), NULL, _IOLBF, 0);
break;
case 'q':
mode_q = true;
if (log_errfile == stderr)
log_quiet_warnings = true;
log_errfile = stderr;
break;
case 'v':
mode_v = true;
log_errfile = stderr;
log_verbose_level = atoi(optarg);
break;
case 't':
log_time = true;
break;
case 'd':
timing_details = true;
break;
case 's':
scriptfile = optarg;
scriptfile_tcl = false;
break;
case 'c':
scriptfile = optarg;
scriptfile_tcl = true;
break;
case 'W':
log_warn_regexes.push_back(std::regex(optarg,
std::regex_constants::nosubs |
std::regex_constants::optimize |
std::regex_constants::egrep));
break;
case 'w':
log_nowarn_regexes.push_back(std::regex(optarg,
std::regex_constants::nosubs |
std::regex_constants::optimize |
std::regex_constants::egrep));
break;
case 'D':
{
auto args = split_tokens(optarg, ":");
if (!args.empty() && args[0] == "ALL") {
if (GetSize(args) != 1) {
fprintf(stderr, "Invalid number of tokens in -D ALL.\n");
exit(1);
}
log_hdump_all = true;
} else {
if (!args.empty() && !args[0].empty() && args[0].back() == '.')
args[0].pop_back();
if (GetSize(args) == 1)
args.push_back("yosys_dump_" + args[0] + ".il");
if (GetSize(args) != 2) {
fprintf(stderr, "Invalid number of tokens in -D.\n");
exit(1);
}
log_hdump[args[0]].insert(args[1]);
}
}
break;
case 'E':
depsfile = optarg;
break;
default:
fprintf(stderr, "Run '%s -h' for help.\n", argv[0]);
exit(1);
}
}
if (log_errfile == NULL) {
log_files.push_back(stdout);
log_error_stderr = true;
}
if (print_banner)
yosys_banner();
if (print_stats)
log_hasher = new SHA1;
#if defined(__linux__)
// set stack size to >= 128 MB
{
struct rlimit rl;
const rlim_t stack_size = 128L * 1024L * 1024L;
if (getrlimit(RLIMIT_STACK, &rl) == 0 && rl.rlim_cur < stack_size) {
rl.rlim_cur = stack_size;
setrlimit(RLIMIT_STACK, &rl);
}
}
#endif
yosys_setup();
log_error_atexit = yosys_atexit;
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, output_filename == "-" ? &backend_command : 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", output_filename == "-" ? &backend_command : NULL);
}
for (auto it = passes_commands.begin(); it != passes_commands.end(); it++)
run_pass(*it);
if (!backend_command.empty())
run_backend(output_filename, backend_command);
if (!depsfile.empty())
{
FILE *f = fopen(depsfile.c_str(), "wt");
if (f == nullptr)
log_error("Can't open dependencies file for writing: %s\n", strerror(errno));
bool first = true;
for (auto fn : yosys_output_files) {
fprintf(f, "%s%s", first ? "" : " ", fn.c_str());
first = false;
}
fprintf(f, ":");
for (auto fn : yosys_input_files) {
if (yosys_output_files.count(fn) == 0)
fprintf(f, " %s", fn.c_str());
}
fprintf(f, "\n");
}
if (print_stats)
{
std::string hash = log_hasher->final().substr(0, 10);
delete log_hasher;
log_hasher = nullptr;
log_time = false;
yosys_xtrace = 0;
log_spacer();
if (mode_v && !mode_q)
log_files.push_back(stderr);
if (log_warnings_count)
log("Warnings: %d unique messages, %d total\n", GetSize(log_warnings), log_warnings_count);
#ifdef _WIN32
log("End of script. Logfile hash: %s\n", hash.c_str());
#else
std::string meminfo;
std::string stats_divider = ", ";
# ifdef __linux__
std::ifstream statm;
statm.open(stringf("/proc/%lld/statm", (long long)getpid()));
if (statm.is_open()) {
int sz_total, sz_resident;
statm >> sz_total >> sz_resident;
meminfo = stringf(", MEM: %.2f MB total, %.2f MB resident",
sz_total * (getpagesize() / 1024.0 / 1024.0),
sz_resident * (getpagesize() / 1024.0 / 1024.0));
stats_divider = "\n";
}
# endif
struct rusage ru_buffer;
getrusage(RUSAGE_SELF, &ru_buffer);
log("End of script. Logfile hash: %s%sCPU: user %.2fs system %.2fs%s\n", hash.c_str(),
stats_divider.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, meminfo.c_str());
#endif
log("%s\n", yosys_version_str);
int64_t total_ns = 0;
std::set<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));
}
if (timing_details)
{
log("Time spent:\n");
for (auto it = timedat.rbegin(); it != timedat.rend(); it++) {
log("%5d%% %5d calls %8.3f sec %s\n", int(100*std::get<0>(*it) / total_ns),
std::get<1>(*it), std::get<0>(*it) / 1000000000.0, std::get<2>(*it).c_str());
}
}
else
{
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");
}
}
#if defined(YOSYS_ENABLE_COVER) && defined(__linux__)
if (getenv("YOSYS_COVER_DIR") || getenv("YOSYS_COVER_FILE"))
{
string filename;
FILE *f;
if (getenv("YOSYS_COVER_DIR")) {
filename = stringf("%s/yosys_cover_%d_XXXXXX.txt", getenv("YOSYS_COVER_DIR"), getpid());
filename = make_temp_file(filename);
} else {
filename = getenv("YOSYS_COVER_FILE");
}
f = fopen(filename.c_str(), "a+");
if (f == NULL)
log_error("Can't create coverage file `%s'.\n", filename.c_str());
log("<writing coverage file \"%s\">\n", filename.c_str());
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
yosys_atexit();
memhasher_off();
if (call_abort)
abort();
log_flush();
#if defined(_MSC_VER)
_exit(0);
#elif defined(_WIN32)
_Exit(0);
#endif
yosys_shutdown();
return 0;
}
#endif /* EMSCRIPTEN */
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