90 lines
3.5 KiB
C++
90 lines
3.5 KiB
C++
/********************************************************************
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* This file includes the top-level function of this library
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* which reads an XML of a fabric key to the associated
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* data structures
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*******************************************************************/
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#include <string>
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/* Headers from pugi XML library */
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#include "pugixml.hpp"
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#include "pugixml_util.hpp"
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/* Headers from vtr util library */
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#include "vtr_assert.h"
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#include "vtr_time.h"
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/* Headers from libopenfpga util library */
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#include "openfpga_port_parser.h"
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/* Headers from libarchfpga */
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#include "arch_error.h"
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#include "read_xml_util.h"
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#include "read_xml_repack_design_constraints.h"
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/********************************************************************
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* Parse XML codes of a <key> to an object of FabricKey
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*******************************************************************/
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static
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void read_xml_pin_constraint(pugi::xml_node& xml_pin_constraint,
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const pugiutil::loc_data& loc_data,
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RepackDesignConstraints& repack_design_constraints) {
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/* Create a new design constraint in the storage */
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RepackDesignConstraintId design_constraint_id = repack_design_constraints.create_design_constraint(RepackDesignConstraints::PIN_ASSIGNMENT);
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if (false == repack_design_constraints.valid_design_constraint_id(design_constraint_id)) {
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archfpga_throw(loc_data.filename_c_str(), loc_data.line(xml_pin_constraint),
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"Fail to create design constraint!\n");
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}
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repack_design_constraints.set_pb_type(design_constraint_id,
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get_attribute(xml_pin_constraint, "pb_type", loc_data).as_string());
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openfpga::PortParser port_parser(get_attribute(xml_pin_constraint, "pin", loc_data).as_string());
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repack_design_constraints.set_pin(design_constraint_id,
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port_parser.port());
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repack_design_constraints.set_net(design_constraint_id,
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get_attribute(xml_pin_constraint, "net", loc_data).as_string());
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}
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/********************************************************************
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* Parse XML codes about <repack_design_constraints> to an object of RepackDesignConstraints
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*******************************************************************/
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RepackDesignConstraints read_xml_repack_design_constraints(const char* design_constraint_fname) {
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vtr::ScopedStartFinishTimer timer("Read Repack Design Constraints");
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RepackDesignConstraints repack_design_constraints;
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/* Parse the file */
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pugi::xml_document doc;
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pugiutil::loc_data loc_data;
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try {
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loc_data = pugiutil::load_xml(doc, design_constraint_fname);
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pugi::xml_node xml_root = get_single_child(doc, "repack_design_constraints", loc_data);
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size_t num_design_constraints = std::distance(xml_root.children().begin(), xml_root.children().end());
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/* Reserve memory space for the region */
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repack_design_constraints.reserve_design_constraints(num_design_constraints);
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for (pugi::xml_node xml_design_constraint : xml_root.children()) {
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/* Error out if the XML child has an invalid name! */
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if (xml_design_constraint.name() != std::string("pin_constraint")) {
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bad_tag(xml_design_constraint, loc_data, xml_root, {"pin_constraint"});
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}
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read_xml_pin_constraint(xml_design_constraint, loc_data, repack_design_constraints);
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}
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} catch (pugiutil::XmlError& e) {
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archfpga_throw(design_constraint_fname, e.line(),
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"%s", e.what());
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}
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return repack_design_constraints;
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}
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