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https://github.com/YosysHQ/yosys
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metadata -> jny: migrated to the proper name for the pass
This commit is contained in:
Aki Van Ness
N. Engelhardt
parent
bdf14557ca
commit
0e20619189
3 changed files with 19 additions and 21 deletions
326
backends/jny/jny.cc
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326
backends/jny/jny.cc
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/*
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* yosys -- Yosys Open SYnthesis Suite
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*
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* Copyright (C) 2012 Aki "lethalbit" Van Ness <aki@yosyshq.com> <aki@lethalbit.net>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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#include "kernel/rtlil.h"
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#include "kernel/register.h"
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#include "kernel/sigtools.h"
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#include "kernel/celltypes.h"
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#include "kernel/cellaigs.h"
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#include "kernel/log.h"
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#include <string>
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#include <unordered_map>
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#include <vector>
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USING_YOSYS_NAMESPACE
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PRIVATE_NAMESPACE_BEGIN
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struct JnyWriter
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{
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private:
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std::ostream &f;
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bool _use_selection;
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std::unordered_map<std::string, std::vector<Cell*>> _cells{};
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// XXX(aki): this was pulled from the json backend, needs to be pulled
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// out possibly into some sort of utilities file, or integrated into rtlil.h
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// directly
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string get_string(string str)
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{
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string newstr = "\"";
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for (char c : str) {
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if (c == '\\')
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newstr += c;
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newstr += c;
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}
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return newstr + "\"";
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}
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// XXX(aki): I know this is far from ideal but i'm out of spoons and cant focus so
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// it'll have to do for now,
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void coalesce_cells(Module* mod)
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{
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for (auto cell : mod->cells()) {
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const auto cell_type = get_string(RTLIL::unescape_id(cell->type));
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if (_cells.find(cell_type) == _cells.end())
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_cells.emplace(cell_type, std::vector<Cell*>());
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_cells.at(cell_type).push_back(cell);
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}
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}
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public:
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JnyWriter(std::ostream &f, bool use_selection) noexcept: f(f), _use_selection(use_selection) { }
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void write_metadata(Design *design)
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{
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log_assert(design != nullptr);
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design->sort();
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f << "{\n";
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f << stringf(" \"generator\": %s,\n", get_string(yosys_version_str).c_str());
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// XXX(aki): Replace this with a proper version info eventually:tm:
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f << " \"version\": \"0.0.0\",\n";
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f << " \"modules\": [\n";
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bool first{true};
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for (auto mod : _use_selection ? design->selected_modules() : design->modules()) {
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if (!first)
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f << ",\n";
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write_module(mod);
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f << "\n";
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first = false;
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}
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f << " ]\n";
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f << "}\n";
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}
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void write_module(Module* mod)
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{
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log_assert(mod != nullptr);
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coalesce_cells(mod);
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f << " {\n";
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f << stringf(" \"name\": %s,\n", get_string(RTLIL::unescape_id(mod->name)).c_str());
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f << " \"cell_sorts\": [\n";
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bool first_sort{true};
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for (auto& sort : _cells) {
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if (!first_sort)
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f << ",\n";
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write_cell_sort(sort);
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first_sort = false;
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}
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f << "\n";
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f << " ],\n";
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f << " \"connections\": [\n";
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f << " ]\n";
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f << " }";
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}
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void write_cell_sort(std::pair<const std::string, std::vector<Cell*>>& sort)
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{
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const auto port_cell = sort.second.front();
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f << " {\n";
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f << stringf(" \"type\": %s,\n", sort.first.c_str());
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f << " \"ports\": [\n";
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bool first_port{true};
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for (auto con : port_cell->connections()) {
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if (!first_port)
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f << ",\n";
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f << " {\n";
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f << stringf(" \"name\": %s,\n", get_string(RTLIL::unescape_id(con.first)).c_str());
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f << " \"direction\": \"";
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if (port_cell->input(con.first))
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f << "i";
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if (port_cell->input(con.first))
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f << "o";
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f << "\",\n";
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if (con.second.size() == 1)
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f << " \"range\": [0, 0]\n";
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else
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f << stringf(" \"range\": [%d, %d]\n", con.second.size(), 0);
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f << " }";
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first_port = false;
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}
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f << "\n";
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f << " ],\n \"cells\": [\n";
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bool first_cell{true};
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for (auto& cell : sort.second) {
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if (!first_cell)
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f << ",\n";
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write_cell(cell);
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first_cell = false;
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}
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f << "\n";
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f << " ]\n";
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f << " }";
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}
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void write_param_val(const Const& v)
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{
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if ((v.flags & RTLIL::ConstFlags::CONST_FLAG_STRING) == RTLIL::ConstFlags::CONST_FLAG_STRING) {
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const auto str = v.decode_string();
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f << get_string(str);
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} else if ((v.flags & RTLIL::ConstFlags::CONST_FLAG_SIGNED) == RTLIL::ConstFlags::CONST_FLAG_SIGNED) {
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f << stringf("\"%dsd %d\"", v.size(), v.as_int());
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} else if ((v.flags & RTLIL::ConstFlags::CONST_FLAG_REAL) == RTLIL::ConstFlags::CONST_FLAG_REAL) {
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} else {
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f << get_string(v.as_string());
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}
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}
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void write_cell(Cell* cell)
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{
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log_assert(cell != nullptr);
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f << " {\n";
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f << stringf(" \"name\": %s,\n", get_string(RTLIL::unescape_id(cell->name)).c_str());
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f << " \"attributes\": {\n";
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bool first_attr{true};
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for (auto& attr : cell->attributes) {
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if (!first_attr)
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f << stringf(",\n");
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const auto attr_val = attr.second;
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if (!attr_val.empty()) {
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f << stringf(" %s: ", get_string(RTLIL::unescape_id(attr.first)).c_str());
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write_param_val(attr_val);
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} else {
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f << stringf(" %s: true", get_string(RTLIL::unescape_id(attr.first)).c_str());
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}
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first_attr = false;
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}
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f << "\n";
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f << " },\n";
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f << " \"parameters\": {\n";
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bool first_param{true};
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for (auto& param : cell->parameters) {
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if (!first_param)
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f << stringf(",\n");
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const auto param_val = param.second;
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if (!param_val.empty()) {
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f << stringf(" %s: ", get_string(RTLIL::unescape_id(param.first)).c_str());
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write_param_val(param_val);
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} else {
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f << stringf(" %s: true", get_string(RTLIL::unescape_id(param.first)).c_str());
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}
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first_param = false;
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}
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f << "\n";
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f << " },\n";
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f << " }";
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}
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};
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struct JnyBackend : public Backend {
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JnyBackend() : Backend("jny", "generate design metadata") { }
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void help() override
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{
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// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
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log("\n");
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log(" jny [options] [selection]\n");
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log("\n");
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log("Write a JSON metadata for the current design\n");
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log("\n");
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log("\n");
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}
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void execute(std::ostream *&f, std::string filename, std::vector<std::string> args, RTLIL::Design *design) override
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{
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size_t argidx{1};
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extra_args(f, filename, args, argidx);
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log_header(design, "Executing jny backend.\n");
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JnyWriter jny_writer(*f, false);
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jny_writer.write_metadata(design);
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}
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} JnyBackend;
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struct JnyPass : public Pass {
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JnyPass() : Pass("jny", "write design and metadata") { }
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void help() override
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{
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// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
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log("\n");
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log(" jny [options] [selection]\n");
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log("\n");
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log("Write a JSON netlist metadata for the current design\n");
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log("\n");
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log(" -o <filename>\n");
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log(" write to the specified file.\n");
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log("\n");
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log("See 'help write_jny' for a description of the JSON format used.\n");
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log("\n");
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}
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void execute(std::vector<std::string> args, RTLIL::Design *design) override
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{
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std::string filename{};
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size_t argidx;
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for (argidx = 1; argidx < args.size(); argidx++)
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{
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if (args[argidx] == "-o" && argidx+1 < args.size()) {
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filename = args[++argidx];
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continue;
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}
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break;
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}
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extra_args(args, argidx, design);
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std::ostream *f;
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std::stringstream buf;
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if (!filename.empty()) {
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rewrite_filename(filename);
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std::ofstream *ff = new std::ofstream;
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ff->open(filename.c_str(), std::ofstream::trunc);
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if (ff->fail()) {
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delete ff;
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log_error("Can't open file `%s' for writing: %s\n", filename.c_str(), strerror(errno));
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}
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f = ff;
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} else {
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f = &buf;
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}
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JnyWriter jny_writer(*f, false);
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jny_writer.write_metadata(design);
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if (!filename.empty()) {
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delete f;
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} else {
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log("%s", buf.str().c_str());
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}
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}
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} JnyPass;
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PRIVATE_NAMESPACE_END
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