232 lines
9.6 KiB
C++
232 lines
9.6 KiB
C++
/*
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* nextpnr -- Next Generation Place and Route
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*
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* Copyright (C) 2018 Clifford Wolf <clifford@symbioticeda.com>
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* Copyright (C) 2018 David Shah <david@symbioticeda.com>
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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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#ifndef NO_PYTHON
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#include "pybindings.h"
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#include "arch_pybindings.h"
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#include "jsonparse.h"
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#include "nextpnr.h"
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#include <fstream>
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#include <memory>
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#include <signal.h>
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NEXTPNR_NAMESPACE_BEGIN
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// Required to determine concatenated module name (which differs for different
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// archs)
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#define PASTER(x, y) x##_##y
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#define EVALUATOR(x, y) PASTER(x, y)
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#define MODULE_NAME EVALUATOR(nextpnrpy, ARCHNAME)
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#define PYINIT_MODULE_NAME EVALUATOR(&PyInit_nextpnrpy, ARCHNAME)
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#define STRINGIFY(x) #x
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#define TOSTRING(x) STRINGIFY(x)
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// Architecture-specific bindings should be created in the below function, which
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// must be implemented in all architectures
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void arch_wrap_python();
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bool operator==(const PortRef &a, const PortRef &b) { return (a.cell == b.cell) && (a.port == b.port); }
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// Load a JSON file into a design
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void parse_json_shim(std::string filename, Context &d)
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{
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std::ifstream inf(filename);
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if (!inf)
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throw std::runtime_error("failed to open file " + filename);
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parse_json_file(inf, filename, &d);
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}
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// Create a new Chip and load design from json file
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Context *load_design_shim(std::string filename, ArchArgs args)
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{
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Context *d = new Context(args);
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parse_json_shim(filename, *d);
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return d;
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}
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void translate_assertfail(const assertion_failure &e)
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{
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// Use the Python 'C' API to set up an exception object
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PyErr_SetString(PyExc_AssertionError, e.what());
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}
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namespace PythonConversion {
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template <> struct string_converter<PortRef &>
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{
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inline PortRef from_str(Context *ctx, std::string name) { NPNR_ASSERT_FALSE("PortRef from_str not implemented"); }
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inline std::string to_str(Context *ctx, const PortRef &pr)
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{
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return pr.cell->name.str(ctx) + "." + pr.port.str(ctx);
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}
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};
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} // namespace PythonConversion
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BOOST_PYTHON_MODULE(MODULE_NAME)
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{
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register_exception_translator<assertion_failure>(&translate_assertfail);
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using namespace PythonConversion;
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class_<GraphicElement>("GraphicElement")
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.def_readwrite("type", &GraphicElement::type)
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.def_readwrite("x1", &GraphicElement::x1)
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.def_readwrite("y1", &GraphicElement::y1)
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.def_readwrite("x2", &GraphicElement::x2)
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.def_readwrite("y2", &GraphicElement::y2)
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.def_readwrite("text", &GraphicElement::text);
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enum_<PortType>("PortType")
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.value("PORT_IN", PORT_IN)
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.value("PORT_OUT", PORT_OUT)
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.value("PORT_INOUT", PORT_INOUT)
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.export_values();
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typedef std::unordered_map<IdString, std::string> AttrMap;
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typedef std::unordered_map<IdString, PortInfo> PortMap;
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typedef std::unordered_map<IdString, IdString> PinMap;
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class_<BaseCtx, BaseCtx *, boost::noncopyable>("BaseCtx", no_init);
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auto ci_cls = class_<ContextualWrapper<CellInfo &>>("CellInfo", no_init);
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readwrite_wrapper<CellInfo &, decltype(&CellInfo::name), &CellInfo::name, conv_to_str<IdString>,
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conv_from_str<IdString>>::def_wrap(ci_cls, "name");
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readwrite_wrapper<CellInfo &, decltype(&CellInfo::type), &CellInfo::type, conv_to_str<IdString>,
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conv_from_str<IdString>>::def_wrap(ci_cls, "type");
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readonly_wrapper<CellInfo &, decltype(&CellInfo::attrs), &CellInfo::attrs, wrap_context<AttrMap &>>::def_wrap(
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ci_cls, "attrs");
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readonly_wrapper<CellInfo &, decltype(&CellInfo::params), &CellInfo::params, wrap_context<AttrMap &>>::def_wrap(
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ci_cls, "params");
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readonly_wrapper<CellInfo &, decltype(&CellInfo::ports), &CellInfo::ports, wrap_context<PortMap &>>::def_wrap(
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ci_cls, "ports");
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readwrite_wrapper<CellInfo &, decltype(&CellInfo::bel), &CellInfo::bel, conv_to_str<BelId>,
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conv_from_str<BelId>>::def_wrap(ci_cls, "bel");
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readwrite_wrapper<CellInfo &, decltype(&CellInfo::belStrength), &CellInfo::belStrength, pass_through<PlaceStrength>,
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pass_through<PlaceStrength>>::def_wrap(ci_cls, "belStrength");
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readonly_wrapper<CellInfo &, decltype(&CellInfo::pins), &CellInfo::pins, wrap_context<PinMap &>>::def_wrap(ci_cls,
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"pins");
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auto pi_cls = class_<ContextualWrapper<PortInfo &>>("PortInfo", no_init);
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readwrite_wrapper<PortInfo &, decltype(&PortInfo::name), &PortInfo::name, conv_to_str<IdString>,
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conv_from_str<IdString>>::def_wrap(pi_cls, "name");
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readonly_wrapper<PortInfo &, decltype(&PortInfo::net), &PortInfo::net, deref_and_wrap<NetInfo>>::def_wrap(pi_cls,
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"net");
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readwrite_wrapper<PortInfo &, decltype(&PortInfo::type), &PortInfo::type, pass_through<PortType>,
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pass_through<PortType>>::def_wrap(pi_cls, "type");
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typedef std::vector<PortRef> PortRefVector;
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typedef std::unordered_map<WireId, PipMap> WireMap;
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auto ni_cls = class_<ContextualWrapper<NetInfo &>>("NetInfo", no_init);
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readwrite_wrapper<NetInfo &, decltype(&NetInfo::name), &NetInfo::name, conv_to_str<IdString>,
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conv_from_str<IdString>>::def_wrap(ni_cls, "name");
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readwrite_wrapper<NetInfo &, decltype(&NetInfo::driver), &NetInfo::driver, wrap_context<PortRef &>,
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unwrap_context<PortRef &>>::def_wrap(ni_cls, "driver");
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readonly_wrapper<NetInfo &, decltype(&NetInfo::users), &NetInfo::users, wrap_context<PortRefVector &>>::def_wrap(
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ni_cls, "users");
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readonly_wrapper<NetInfo &, decltype(&NetInfo::wires), &NetInfo::wires, wrap_context<WireMap &>>::def_wrap(ni_cls,
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"wires");
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auto pr_cls = class_<ContextualWrapper<PortRef &>>("PortRef", no_init);
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readonly_wrapper<PortRef &, decltype(&PortRef::cell), &PortRef::cell, deref_and_wrap<CellInfo>>::def_wrap(pr_cls,
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"cell");
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readwrite_wrapper<PortRef &, decltype(&PortRef::port), &PortRef::port, conv_to_str<IdString>,
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conv_from_str<IdString>>::def_wrap(pr_cls, "port");
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readwrite_wrapper<PortRef &, decltype(&PortRef::budget), &PortRef::budget, pass_through<delay_t>,
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pass_through<delay_t>>::def_wrap(pr_cls, "budget");
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auto pm_cls = class_<ContextualWrapper<PipMap &>>("PipMap", no_init);
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readwrite_wrapper<PipMap &, decltype(&PipMap::pip), &PipMap::pip, conv_to_str<PipId>,
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conv_from_str<PipId>>::def_wrap(pm_cls, "pip");
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readwrite_wrapper<PipMap &, decltype(&PipMap::strength), &PipMap::strength, pass_through<PlaceStrength>,
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pass_through<PlaceStrength>>::def_wrap(pm_cls, "strength");
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def("parse_json", parse_json_shim);
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def("load_design", load_design_shim, return_value_policy<manage_new_object>());
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WRAP_MAP(AttrMap, pass_through<std::string>, "AttrMap");
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WRAP_MAP(PortMap, wrap_context<PortInfo &>, "PortMap");
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WRAP_MAP(PinMap, conv_to_str<IdString>, "PinMap");
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WRAP_MAP(WireMap, wrap_context<PipMap &>, "WireMap");
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WRAP_VECTOR(PortRefVector, wrap_context<PortRef &>);
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arch_wrap_python();
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}
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#ifdef MAIN_EXECUTABLE
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static wchar_t *program;
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#endif
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void init_python(const char *executable, bool first)
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{
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#ifdef MAIN_EXECUTABLE
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program = Py_DecodeLocale(executable, NULL);
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if (program == NULL) {
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fprintf(stderr, "Fatal error: cannot decode executable filename\n");
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exit(1);
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}
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try {
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if (first)
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PyImport_AppendInittab(TOSTRING(MODULE_NAME), PYINIT_MODULE_NAME);
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Py_SetProgramName(program);
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Py_Initialize();
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if (first)
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PyImport_ImportModule(TOSTRING(MODULE_NAME));
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} catch (boost::python::error_already_set const &) {
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// Parse and output the exception
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std::string perror_str = parse_python_exception();
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std::cout << "Error in Python: " << perror_str << std::endl;
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}
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signal(SIGINT, SIG_DFL);
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#endif
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}
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void deinit_python()
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{
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#ifdef MAIN_EXECUTABLE
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Py_Finalize();
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PyMem_RawFree(program);
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#endif
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}
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void execute_python_file(const char *python_file)
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{
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try {
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FILE *fp = fopen(python_file, "r");
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if (fp == NULL) {
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fprintf(stderr, "Fatal error: file not found %s\n", python_file);
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exit(1);
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}
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PyRun_SimpleFile(fp, python_file);
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fclose(fp);
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} catch (boost::python::error_already_set const &) {
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// Parse and output the exception
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std::string perror_str = parse_python_exception();
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std::cout << "Error in Python: " << perror_str << std::endl;
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}
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}
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NEXTPNR_NAMESPACE_END
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#endif // NO_PYTHON
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