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yosys/techlibs/common/opensta.cc
2025-07-18 23:51:15 +02:00

118 lines
3.2 KiB
C++

#include "kernel/rtlil.h"
#include "kernel/log.h"
USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN
#if !defined(YOSYS_DISABLE_SPAWN)
struct OpenstaPass : public Pass
{
const char* default_sta_cmd = "sta";
OpenstaPass() : Pass("opensta", "run OpenSTA") { }
void help() override
{
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
log("\n");
log(" opensta [options]\n");
log("\n");
// TOOD
log("\n");
log(" -exe <command>\n");
log(" use <command> to run OpenSTA instead of \"%s\"\n", default_sta_cmd);
log("\n");
log(" -sdc-in <filename>\n");
log(" expand SDC input file <filename>\n");
log("\n");
log(" -sdc-out <filename>\n");
log(" expand SDC file to output file <filename>\n");
log("\n");
log(" -nocleanup\n");
log("\n");
log("\n");
}
void execute(std::vector<std::string> args, RTLIL::Design *design) override
{
string run_from, run_to;
string opensta_exe = "sta";
string sdc_filename, sdc_expanded_filename;
string tempdir_name, script_filename;
string verilog_filename, liberty_filename;
bool cleanup = true;
log_header(design, "Executing OPENSTA pass.\n");
log_push();
size_t argidx;
for (argidx = 1; argidx < args.size(); argidx++)
{
if (args[argidx] == "-exe" && argidx+1 < args.size()) {
opensta_exe = args[++argidx];
continue;
}
if (args[argidx] == "-sdc-in" && argidx+1 < args.size()) {
sdc_filename = args[++argidx];
continue;
}
if (args[argidx] == "-sdc-out" && argidx+1 < args.size()) {
sdc_expanded_filename = args[++argidx];
continue;
}
if (args[argidx] == "-verilog" && argidx+1 < args.size()) {
verilog_filename = args[++argidx];
continue;
}
if (args[argidx] == "-liberty" && argidx+1 < args.size()) {
liberty_filename = args[++argidx];
continue;
}
if (args[argidx] == "-nocleanup") {
cleanup = false;
continue;
}
break;
}
extra_args(args, argidx, design);
if (!design->full_selection())
log_cmd_error("This command only operates on fully selected designs!\n");
if (cleanup)
tempdir_name = get_base_tmpdir() + "/";
else
tempdir_name = "_tmp_";
tempdir_name += proc_program_prefix() + "yosys-opensta-XXXXXX";
tempdir_name = make_temp_dir(tempdir_name);
script_filename = tempdir_name + "/opensta.tcl";
// script_filename
auto top_mod = design->top_module();
if (!top_mod)
log_error("Can't find top module in current design!\n");
std::ofstream f_script;
f_script.open(script_filename);
f_script << "read_verilog " << verilog_filename << "\n";
f_script << "read_lib " << liberty_filename << "\n";
f_script << "link_design " << RTLIL::unescape_id(top_mod->name) << "\n";
f_script << "read_sdc " << sdc_filename << "\n";
f_script << "write_sdc " << sdc_expanded_filename << "\n";
f_script.close();
std::string command = opensta_exe + " -exit " + script_filename;
int ret = run_command(command);
if (ret)
log_error("OpenSTA return %d (error)\n", ret);
else
log("sdc_expanded_filename: %s\n", sdc_expanded_filename.c_str());
if (cleanup) {
log("Removing temp directory.\n");
remove_directory(tempdir_name);
}
log_pop();
}
} OpenstaPass;
#endif
PRIVATE_NAMESPACE_END