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LibertyReader.cc
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// OpenSTA, Static Timing Analyzer
// Copyright (c) 2018, Parallax Software, Inc.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
#include <ctype.h>
#include <stdlib.h>
#include "Machine.hh"
#include "Report.hh"
#include "Debug.hh"
#include "TokenParser.hh"
#include "Network.hh"
#include "Units.hh"
#include "PortDirection.hh"
#include "Transition.hh"
#include "FuncExpr.hh"
#include "TimingArc.hh"
#include "TableModel.hh"
#include "LeakagePower.hh"
#include "InternalPower.hh"
#include "LinearModel.hh"
#include "Wireload.hh"
#include "EquivCells.hh"
#include "LibertyExpr.hh"
#include "ParseBus.hh"
#include "Liberty.hh"
#include "LibertyBuilder.hh"
#include "LibertyReader.hh"
#include "LibertyReaderPvt.hh"
namespace sta {
static void
scaleFloats(FloatSeq *floats,
float scale);
LibertyLibrary *
readLibertyFile(const char *filename,
bool infer_latches,
Report *report,
Debug *debug,
Network *network)
{
LibertyBuilder builder;
LibertyReader reader(&builder);
return reader.readLibertyFile(filename, infer_latches,
report, debug, network);
}
LibertyReader::LibertyReader(LibertyBuilder *builder) :
LibertyGroupVisitor(),
builder_(builder)
{
defineVisitors();
}
LibertyReader::~LibertyReader()
{
if (var_map_) {
LibertyVariableMap::Iterator iter(var_map_);
while (iter.hasNext()) {
const char *var;
float value;
iter.next(var, value);
stringDelete(var);
}
delete var_map_;
}
// Scaling factor attribute names are allocated, so delete them.
LibraryAttrMap::Iterator attr_iter(attr_visitor_map_);
while (attr_iter.hasNext()) {
const char *attr_name;
LibraryAttrVisitor visitor;
attr_iter.next(attr_name, visitor);
stringDelete(attr_name);
}
}
LibertyLibrary *
LibertyReader::readLibertyFile(const char *filename,
bool infer_latches,
Report *report,
Debug *debug,
Network *network)
{
filename_ = filename;
infer_latches_ = infer_latches;
report_ = report;
debug_ = debug;
network_ = network;
var_map_ = NULL;
library_ = NULL;
wireload_ = NULL;
wireload_selection_ = NULL;
default_wireload_ = NULL;
default_wireload_selection_ = NULL;
scale_factors_ = NULL;
save_scale_factors_ = NULL;
tbl_template_ = NULL;
cell_ = NULL;
save_cell_ = NULL;
scaled_cell_owner_ = NULL;
test_cell_ = NULL;
ocv_derate_name_ = NULL;
op_cond_ = NULL;
ports_ = NULL;
port_ = NULL;
port_group_ = NULL;
saved_ports_ = NULL;
saved_port_group_ = NULL;
in_bus_ = false;
in_bundle_ = false;
sequential_ = NULL;
timing_ = NULL;
internal_power_ = NULL;
leakage_power_ = NULL;
table_ = NULL;
table_model_scale_ = 1.0;
mode_def_ = NULL;
mode_value_ = NULL;
ocv_derate_ = NULL;
TransRiseFallIterator tr_iter;
while (tr_iter.hasNext()) {
int tr_index = tr_iter.next()->index();
have_input_threshold_[tr_index] = false;
have_output_threshold_[tr_index] = false;
have_slew_lower_threshold_[tr_index] = false;
have_slew_upper_threshold_[tr_index] = false;
}
parseLibertyFile(filename, this, report);
return library_;
}
void
LibertyReader::defineGroupVisitor(const char *type,
LibraryGroupVisitor begin_visitor,
LibraryGroupVisitor end_visitor)
{
group_begin_map_[type] = begin_visitor;
group_end_map_[type] = end_visitor;
}
void
LibertyReader::defineAttrVisitor(const char *attr_name,
LibraryAttrVisitor visitor)
{
attr_visitor_map_[stringCopy(attr_name)] = visitor;
}
void
LibertyReader::defineVisitors()
{
defineGroupVisitor("library", &LibertyReader::beginLibrary,
&LibertyReader::endLibrary);
defineAttrVisitor("time_unit", &LibertyReader::visitTimeUnit);
defineAttrVisitor("pulling_resistance_unit",
&LibertyReader::visitPullingResistanceUnit);
defineAttrVisitor("capacitive_load_unit",
&LibertyReader::visitCapacitiveLoadUnit);
defineAttrVisitor("voltage_unit", &LibertyReader::visitVoltageUnit);
defineAttrVisitor("current_unit", &LibertyReader::visitCurrentUnit);
defineAttrVisitor("leakage_power_unit", &LibertyReader::visitPowerUnit);
defineAttrVisitor("delay_model", &LibertyReader::visitDelayModel);
defineAttrVisitor("bus_naming_style", &LibertyReader::visitBusStyle);
defineAttrVisitor("nom_temperature", &LibertyReader::visitNomTemp);
defineAttrVisitor("nom_voltage", &LibertyReader::visitNomVolt);
defineAttrVisitor("nom_process", &LibertyReader::visitNomProc);
defineAttrVisitor("default_inout_pin_cap",
&LibertyReader::visitDefaultInoutPinCap);
defineAttrVisitor("default_input_pin_cap",
&LibertyReader::visitDefaultInputPinCap);
defineAttrVisitor("default_output_pin_cap",
&LibertyReader::visitDefaultOutputPinCap);
defineAttrVisitor("default_max_transition",
&LibertyReader::visitDefaultMaxTransition);
defineAttrVisitor("default_max_fanout",
&LibertyReader::visitDefaultMaxFanout);
defineAttrVisitor("default_intrinsic_rise",
&LibertyReader::visitDefaultIntrinsicRise);
defineAttrVisitor("default_intrinsic_fall",
&LibertyReader::visitDefaultIntrinsicFall);
defineAttrVisitor("default_inout_pin_rise_res",
&LibertyReader::visitDefaultInoutPinRiseRes);
defineAttrVisitor("default_inout_pin_fall_res",
&LibertyReader::visitDefaultInoutPinFallRes);
defineAttrVisitor("default_output_pin_rise_res",
&LibertyReader::visitDefaultOutputPinRiseRes);
defineAttrVisitor("default_output_pin_fall_res",
&LibertyReader::visitDefaultOutputPinFallRes);
defineAttrVisitor("default_fanout_load",
&LibertyReader::visitDefaultFanoutLoad);
defineAttrVisitor("default_wire_load",
&LibertyReader::visitDefaultWireLoad);
defineAttrVisitor("default_wire_load_mode",
&LibertyReader::visitDefaultWireLoadMode);
defineAttrVisitor("default_wire_load_selection",
&LibertyReader::visitDefaultWireLoadSelection);
defineAttrVisitor("default_operating_conditions",
&LibertyReader::visitDefaultOperatingConditions);
defineAttrVisitor("input_threshold_pct_fall",
&LibertyReader::visitInputThresholdPctFall);
defineAttrVisitor("input_threshold_pct_rise",
&LibertyReader::visitInputThresholdPctRise);
defineAttrVisitor("output_threshold_pct_fall",
&LibertyReader::visitOutputThresholdPctFall);
defineAttrVisitor("output_threshold_pct_rise",
&LibertyReader::visitOutputThresholdPctRise);
defineAttrVisitor("slew_lower_threshold_pct_fall",
&LibertyReader::visitSlewLowerThresholdPctFall);
defineAttrVisitor("slew_lower_threshold_pct_rise",
&LibertyReader::visitSlewLowerThresholdPctRise);
defineAttrVisitor("slew_upper_threshold_pct_fall",
&LibertyReader::visitSlewUpperThresholdPctFall);
defineAttrVisitor("slew_upper_threshold_pct_rise",
&LibertyReader::visitSlewUpperThresholdPctRise);
defineAttrVisitor("slew_derate_from_library",
&LibertyReader::visitSlewDerateFromLibrary);
defineGroupVisitor("lu_table_template", &LibertyReader::beginTableTemplate,
&LibertyReader::endTableTemplate);
defineGroupVisitor("output_current_template",
&LibertyReader::beginTableTemplate,
&LibertyReader::endTableTemplate);
defineGroupVisitor("ocv_table_template", &LibertyReader::beginTableTemplate,
&LibertyReader::endTableTemplate);
defineAttrVisitor("variable_1", &LibertyReader::visitVariable1);
defineAttrVisitor("variable_2", &LibertyReader::visitVariable2);
defineAttrVisitor("variable_3", &LibertyReader::visitVariable3);
defineAttrVisitor("index_1", &LibertyReader::visitIndex1);
defineAttrVisitor("index_2", &LibertyReader::visitIndex2);
defineAttrVisitor("index_3", &LibertyReader::visitIndex3);
defineGroupVisitor("rise_transition_degradation",
&LibertyReader::beginRiseTransitionDegredation,
&LibertyReader::endRiseFallTransitionDegredation);
defineGroupVisitor("fall_transition_degradation",
&LibertyReader::beginFallTransitionDegredation,
&LibertyReader::endRiseFallTransitionDegredation);
defineGroupVisitor("type", &LibertyReader::beginType,
&LibertyReader::endType);
defineAttrVisitor("bit_from", &LibertyReader::visitBitFrom);
defineAttrVisitor("bit_to", &LibertyReader::visitBitTo);
defineGroupVisitor("scaling_factors", &LibertyReader::beginScalingFactors,
&LibertyReader::endScalingFactors);
defineScalingFactorVisitors();
defineGroupVisitor("operating_conditions", &LibertyReader::beginOpCond,
&LibertyReader::endOpCond);
defineAttrVisitor("process", &LibertyReader::visitProc);
defineAttrVisitor("voltage", &LibertyReader::visitVolt);
defineAttrVisitor("temperature", &LibertyReader::visitTemp);
defineAttrVisitor("tree_type", &LibertyReader::visitTreeType);
defineGroupVisitor("wire_load", &LibertyReader::beginWireload,
&LibertyReader::endWireload);
defineAttrVisitor("resistance", &LibertyReader::visitResistance);
defineAttrVisitor("slope", &LibertyReader::visitSlope);
defineAttrVisitor("fanout_length", &LibertyReader::visitFanoutLength);
defineGroupVisitor("wire_load_selection",
&LibertyReader::beginWireloadSelection,
&LibertyReader::endWireloadSelection);
defineAttrVisitor("wire_load_from_area",
&LibertyReader::visitWireloadFromArea);
defineGroupVisitor("cell", &LibertyReader::beginCell,
&LibertyReader::endCell);
defineGroupVisitor("scaled_cell", &LibertyReader::beginScaledCell,
&LibertyReader::endScaledCell);
defineAttrVisitor("clock_gating_integrated_cell",
&LibertyReader::visitClockGatingIntegratedCell);
defineAttrVisitor("area", &LibertyReader::visitArea);
defineAttrVisitor("dont_use", &LibertyReader::visitDontUse);
defineAttrVisitor("interface_timing", &LibertyReader::visitInterfaceTiming);
defineAttrVisitor("scaling_factors", &LibertyReader::visitScalingFactors);
defineGroupVisitor("pin", &LibertyReader::beginPin,&LibertyReader::endPin);
defineGroupVisitor("bus", &LibertyReader::beginBus,&LibertyReader::endBus);
defineGroupVisitor("bundle", &LibertyReader::beginBundle,
&LibertyReader::endBundle);
defineAttrVisitor("direction", &LibertyReader::visitDirection);
defineAttrVisitor("clock", &LibertyReader::visitClock);
defineAttrVisitor("bus_type", &LibertyReader::visitBusType);
defineAttrVisitor("members", &LibertyReader::visitMembers);
defineAttrVisitor("function", &LibertyReader::visitFunction);
defineAttrVisitor("three_state", &LibertyReader::visitThreeState);
defineAttrVisitor("capacitance", &LibertyReader::visitCapacitance);
defineAttrVisitor("rise_capacitance", &LibertyReader::visitRiseCap);
defineAttrVisitor("fall_capacitance", &LibertyReader::visitFallCap);
defineAttrVisitor("rise_capacitance_range",
&LibertyReader::visitRiseCapRange);
defineAttrVisitor("fall_capacitance_range",
&LibertyReader::visitFallCapRange);
defineAttrVisitor("max_fanout", &LibertyReader::visitMaxFanout);
defineAttrVisitor("min_fanout", &LibertyReader::visitMinFanout);
defineAttrVisitor("max_transition", &LibertyReader::visitMaxTransition);
defineAttrVisitor("min_transition", &LibertyReader::visitMinTransition);
defineAttrVisitor("max_capacitance", &LibertyReader::visitMaxCapacitance);
defineAttrVisitor("min_capacitance", &LibertyReader::visitMinCapacitance);
defineAttrVisitor("min_period", &LibertyReader::visitMinPeriod);
defineAttrVisitor("min_pulse_width_low",
&LibertyReader::visitMinPulseWidthLow);
defineAttrVisitor("min_pulse_width_high",
&LibertyReader::visitMinPulseWidthHigh);
defineAttrVisitor("pulse_clock",
&LibertyReader::visitPulseClock);
defineAttrVisitor("clock_gate_clock_pin",
&LibertyReader::visitClockGateClockPin);
defineAttrVisitor("clock_gate_enable_pin",
&LibertyReader::visitClockGateEnablePin);
defineAttrVisitor("clock_gate_out_pin",
&LibertyReader::visitClockGateOutPin);
defineAttrVisitor("is_pll_feedback_pin",
&LibertyReader::visitIsPllFeedbackPin);
defineAttrVisitor("signal_type", &LibertyReader::visitSignalType);
defineGroupVisitor("ff", &LibertyReader::beginFF, &LibertyReader::endFF);
defineGroupVisitor("ff_bank", &LibertyReader::beginFFBank,
&LibertyReader::endFFBank);
defineGroupVisitor("latch", &LibertyReader::beginLatch,
&LibertyReader::endLatch);
defineGroupVisitor("latch_bank", &LibertyReader::beginLatchBank,
&LibertyReader::endLatchBank);
defineAttrVisitor("clocked_on", &LibertyReader::visitClockedOn);
defineAttrVisitor("enable", &LibertyReader::visitClockedOn);
defineAttrVisitor("data_in", &LibertyReader::visitDataIn);
defineAttrVisitor("next_state", &LibertyReader::visitDataIn);
defineAttrVisitor("clear", &LibertyReader::visitClear);
defineAttrVisitor("preset", &LibertyReader::visitPreset);
defineAttrVisitor("clear_preset_var1", &LibertyReader::visitClrPresetVar1);
defineAttrVisitor("clear_preset_var2", &LibertyReader::visitClrPresetVar2);
defineGroupVisitor("timing", &LibertyReader::beginTiming,
&LibertyReader::endTiming);
defineAttrVisitor("related_pin", &LibertyReader::visitRelatedPin);
defineAttrVisitor("related_bus_pins", &LibertyReader::visitRelatedBusPins);
defineAttrVisitor("related_output_pin",
&LibertyReader::visitRelatedOutputPin);
defineAttrVisitor("timing_type", &LibertyReader::visitTimingType);
defineAttrVisitor("timing_sense", &LibertyReader::visitTimingSense);
defineAttrVisitor("sdf_cond_start", &LibertyReader::visitSdfCondStart);
defineAttrVisitor("sdf_cond_end", &LibertyReader::visitSdfCondEnd);
defineAttrVisitor("mode", &LibertyReader::visitMode);
defineAttrVisitor("intrinsic_rise", &LibertyReader::visitIntrinsicRise);
defineAttrVisitor("intrinsic_fall", &LibertyReader::visitIntrinsicFall);
defineAttrVisitor("rise_resistance", &LibertyReader::visitRiseResistance);
defineAttrVisitor("fall_resistance", &LibertyReader::visitFallResistance);
defineGroupVisitor("cell_rise", &LibertyReader::beginCellRise,
&LibertyReader::endCellRiseFall);
defineGroupVisitor("cell_fall", &LibertyReader::beginCellFall,
&LibertyReader::endCellRiseFall);
defineGroupVisitor("rise_transition", &LibertyReader::beginRiseTransition,
&LibertyReader::endRiseFallTransition);
defineGroupVisitor("fall_transition", &LibertyReader::beginFallTransition,
&LibertyReader::endRiseFallTransition);
defineGroupVisitor("rise_constraint", &LibertyReader::beginRiseConstraint,
&LibertyReader::endRiseFallConstraint);
defineGroupVisitor("fall_constraint", &LibertyReader::beginFallConstraint,
&LibertyReader::endRiseFallConstraint);
defineAttrVisitor("value", &LibertyReader::visitValue);
defineAttrVisitor("values", &LibertyReader::visitValues);
defineGroupVisitor("lut", &LibertyReader::beginLut,&LibertyReader::endLut);
defineGroupVisitor("test_cell", &LibertyReader::beginTestCell,
&LibertyReader::endTestCell);
defineGroupVisitor("mode_definition", &LibertyReader::beginModeDef,
&LibertyReader::endModeDef);
defineGroupVisitor("mode_value", &LibertyReader::beginModeValue,
&LibertyReader::endModeValue);
defineAttrVisitor("when", &LibertyReader::visitWhen);
defineAttrVisitor("sdf_cond", &LibertyReader::visitSdfCond);
// Power attributes.
defineGroupVisitor("power_lut_template", &LibertyReader::beginTableTemplate,
&LibertyReader::endTableTemplate);
defineGroupVisitor("leakage_power", &LibertyReader::beginLeakagePower,
&LibertyReader::endLeakagePower);
defineGroupVisitor("internal_power", &LibertyReader::beginInternalPower,
&LibertyReader::endInternalPower);
defineGroupVisitor("fall_power", &LibertyReader::beginFallPower,
&LibertyReader::endRiseFallPower);
defineGroupVisitor("rise_power", &LibertyReader::beginRisePower,
&LibertyReader::endRiseFallPower);
// AOCV attributes.
defineAttrVisitor("ocv_arc_depth", &LibertyReader::visitOcvArcDepth);
defineAttrVisitor("default_ocv_derate_group",
&LibertyReader::visitDefaultOcvDerateGroup);
defineAttrVisitor("ocv_derate_group", &LibertyReader::visitOcvDerateGroup);
defineGroupVisitor("ocv_table_template",
&LibertyReader::beginTableTemplate,
&LibertyReader::endTableTemplate);
defineGroupVisitor("ocv_derate",
&LibertyReader::beginOcvDerate,
&LibertyReader::endOcvDerate);
defineGroupVisitor("ocv_derate_factors",
&LibertyReader::beginOcvDerateFactors,
&LibertyReader::endOcvDerateFactors);
defineAttrVisitor("rf_type", &LibertyReader::visitRfType);
defineAttrVisitor("derate_type", &LibertyReader::visitDerateType);
defineAttrVisitor("path_type", &LibertyReader::visitPathType);
}
void
LibertyReader::defineScalingFactorVisitors()
{
for (int type_index = 0; type_index < scale_factor_count; type_index++) {
ScaleFactorType type = static_cast<ScaleFactorType>(type_index);
const char *type_name = scaleFactorTypeName(type);
for (int pvt_index = 0; pvt_index < scale_factor_pvt_count; pvt_index++) {
ScaleFactorPvt pvt = static_cast<ScaleFactorPvt>(pvt_index);
const char *pvt_name = scaleFactorPvtName(pvt);
if (scaleFactorTypeRiseFallSuffix(type)) {
TransRiseFallIterator tr_iter;
while (tr_iter.hasNext()) {
TransRiseFall *tr = tr_iter.next();
const char *tr_name = (tr == TransRiseFall::rise()) ? "rise":"fall";
const char *attr_name = stringPrintTmp(strlen(pvt_name)
+ strlen(type_name)
+ strlen(tr_name)
+ 5, // k___\0
"k_%s_%s_%s",
pvt_name,
type_name,
tr_name);
defineAttrVisitor(attr_name,&LibertyReader::visitScaleFactorSuffix);
}
}
else if (scaleFactorTypeRiseFallPrefix(type)) {
TransRiseFallIterator tr_iter;
while (tr_iter.hasNext()) {
TransRiseFall *tr = tr_iter.next();
const char *tr_name = (tr == TransRiseFall::rise()) ? "rise":"fall";
const char *attr_name = stringPrintTmp(strlen(pvt_name)
+ strlen(type_name)
+ strlen(tr_name)
+ 5, // k___\0
"k_%s_%s_%s",
pvt_name,
tr_name,
type_name);
defineAttrVisitor(attr_name,&LibertyReader::visitScaleFactorPrefix);
}
}
else if (scaleFactorTypeLowHighSuffix(type)) {
TransRiseFallIterator tr_iter;
while (tr_iter.hasNext()) {
TransRiseFall *tr = tr_iter.next();
const char *tr_name = (tr == TransRiseFall::rise()) ? "high":"low";
const char *attr_name = stringPrintTmp(strlen(pvt_name)
+ strlen(type_name)
+ strlen(tr_name)
+ 5, // k___\0
"k_%s_%s_%s",
pvt_name,
tr_name,
type_name);
defineAttrVisitor(attr_name,&LibertyReader::visitScaleFactorHiLow);
}
}
else {
const char *attr_name = stringPrintTmp(strlen(pvt_name)
+ strlen(type_name)
+ 4, // k__\0
"k_%s_%s",
pvt_name,
type_name);
defineAttrVisitor(attr_name,&LibertyReader::visitScaleFactor);
}
}
}
}
void
LibertyReader::visitAttr(LibertyAttr *attr)
{
LibraryAttrVisitor visitor = attr_visitor_map_.findKey(attr->name());
if (visitor)
(this->*visitor)(attr);
}
void
LibertyReader::begin(LibertyGroup *group)
{
LibraryGroupVisitor visitor = group_begin_map_.findKey(group->type());
if (visitor)
(this->*visitor)(group);
}
void
LibertyReader::end(LibertyGroup *group)
{
LibraryGroupVisitor visitor = group_end_map_.findKey(group->type());
if (visitor)
(this->*visitor)(group);
}
void
LibertyReader::beginLibrary(LibertyGroup *group)
{
const char *name = group->firstName();
if (name) {
LibertyLibrary *library = network_->findLiberty(name);
if (library)
libWarn(group, "library %s already exists.\n", name);
// Make a new library even if a library with the same name exists.
// Both libraries may be accessed by min/max analysis points.
library_ = network_->makeLibertyLibrary(name, filename_);
// 1ns default
time_scale_ = 1E-9F;
// 1ohm default
res_scale_ = 1.0F;
cap_scale_ = 1.0F;
// 1v default
volt_scale_ = 1;
// Default is 1mA.
curr_scale_ = 1E-3F;
// Default is 1;
power_scale_ = 1;
library_->units()->timeUnit()->setScale(time_scale_);
library_->units()->capacitanceUnit()->setScale(cap_scale_);
library_->units()->resistanceUnit()->setScale(res_scale_);
library_->units()->voltageUnit()->setScale(volt_scale_);
library_->units()->currentUnit()->setScale(curr_scale_);
library_->setDelayModelType(delay_model_cmos_linear);
scale_factors_ = new ScaleFactors("");
library_->setScaleFactors(scale_factors_);
}
else
libError(group, "library does not have a name.\n");
}
void
LibertyReader::endLibrary(LibertyGroup *group)
{
endLibraryAttrs(group);
}
void
LibertyReader::endLibraryAttrs(LibertyGroup *group)
{
// These attributes reference named groups in the library so
// wait until the end of the library to resolve them.
if (default_wireload_) {
Wireload *wireload = library_->findWireload(default_wireload_);
if (wireload)
library_->setDefaultWireload(wireload);
else
libWarn(group, "default_wire_load %s not found.\n", default_wireload_);
stringDelete(default_wireload_);
}
if (default_wireload_selection_) {
WireloadSelection *selection =
library_->findWireloadSelection(default_wireload_selection_);
if (selection)
library_->setDefaultWireloadSelection(selection);
else
libWarn(group, "default_wire_selection %s not found.\n",
default_wireload_selection_);
stringDelete(default_wireload_selection_);
}
bool missing_threshold = false;
TransRiseFallIterator tr_iter;
while (tr_iter.hasNext()) {
TransRiseFall *tr = tr_iter.next();
int tr_index = tr->index();
if (!have_input_threshold_[tr_index]) {
libWarn(group, "input_threshold_pct_%s not found.\n", tr->name());
missing_threshold = true;
}
if (!have_output_threshold_[tr_index]) {
libWarn(group, "output_threshold_pct_%s not found.\n", tr->name());
missing_threshold = true;
}
if (!have_slew_lower_threshold_[tr_index]) {
libWarn(group, "slew_lower_threshold_pct_%s not found.\n", tr->name());
missing_threshold = true;
}
if (!have_slew_upper_threshold_[tr_index]) {
libWarn(group, "slew_upper_threshold_pct_%s not found.\n", tr->name());
missing_threshold = true;
}
}
if (missing_threshold)
libError(group, "Library %s is missing one or more thresholds.\n",
library_->name());
}
void
LibertyReader::visitTimeUnit(LibertyAttr *attr)
{
if (library_)
parseUnits(attr, "s", time_scale_, library_->units()->timeUnit());
}
void
LibertyReader::visitPullingResistanceUnit(LibertyAttr *attr)
{
if (library_)
parseUnits(attr, "ohm", res_scale_, library_->units()->resistanceUnit());
}
void
LibertyReader::visitCurrentUnit(LibertyAttr *attr)
{
if (library_)
parseUnits(attr, "A", curr_scale_, library_->units()->currentUnit());
}
void
LibertyReader::visitVoltageUnit(LibertyAttr *attr)
{
if (library_)
parseUnits(attr, "V", volt_scale_, library_->units()->voltageUnit());
}
void
LibertyReader::visitPowerUnit(LibertyAttr *attr)
{
if (library_)
parseUnits(attr, "W", power_scale_, library_->units()->powerUnit());
}
void
LibertyReader::parseUnits(LibertyAttr *attr,
const char *unit_suffix,
float &scale_var,
Unit *unit)
{
const char *unit_str = getAttrString(attr);
unsigned unit_str_length = strlen(unit_str);
// Unit format is <multipler_digits><scale_suffix_char><unit_suffix>.
// Find the multiplier digits.
char *mult_str = makeTmpString(unit_str_length);
const char *s = unit_str;
char *m = mult_str;
for (; *s; s++) {
char ch = *s;
if (isdigit(ch))
*m++ = ch;
else
break;
}
*m = '\0';
float mult = 1.0F;
if (*mult_str != '\0') {
if (stringEq(mult_str, "1"))
mult = 1.0F;
else if (stringEq(mult_str, "10"))
mult = 10.0F;
else if (stringEq(mult_str, "100"))
mult = 100.0F;
else
libWarn(attr, "unknown unit multiplier %s.\n", mult_str);
}
float scale_mult = 1.0F;
if (stringEq(s + 1, unit_suffix)) {
char scale_char = *s;
if (scale_char == 'k')
scale_mult = 1E+3F;
else if (scale_char == 'm')
scale_mult = 1E-3F;
else if (scale_char == 'u')
scale_mult = 1E-6F;
else if (scale_char == 'n')
scale_mult = 1E-9F;
else if (scale_char == 'p')
scale_mult = 1E-12F;
else if (scale_char == 'f')
scale_mult = 1E-15F;
else
libWarn(attr, "unknown unit scale %c.\n", scale_char);
}
else if (!stringEq(s, unit_suffix))
libWarn(attr, "unknown unit suffix %s.\n", s + 1);
scale_var = scale_mult * mult;
unit->setScale(scale_var);
}
void
LibertyReader::visitCapacitiveLoadUnit(LibertyAttr *attr)
{
if (library_) {
if (attr->isComplex()) {
LibertyAttrValueIterator value_iter(attr->values());
if (value_iter.hasNext()) {
LibertyAttrValue *value = value_iter.next();
if (value->isFloat()) {
float scale = value->floatValue();
if (value_iter.hasNext()) {
value = value_iter.next();
if (value->isString()) {
const char *suffix = value->stringValue();
if (stringEq(suffix, "ff"))
cap_scale_ = scale * 1E-15F;
else if (stringEq(suffix, "pf"))
cap_scale_ = scale * 1E-12F;
else
libWarn(attr, "capacitive_load_units are not ff or pf.\n");
}
else
libWarn(attr, "capacitive_load_units are not a string.\n");
}
else
libWarn(attr, "capacitive_load_units missing suffix.\n");
}
else
libWarn(attr, "capacitive_load_units scale is not a float.\n");
}
else
libWarn(attr, "capacitive_load_units missing scale and suffix.\n");
}
else
libWarn(attr, "capacitive_load_unit missing values suffix.\n");
library_->units()->capacitanceUnit()->setScale(cap_scale_);
}
}
void
LibertyReader::visitDelayModel(LibertyAttr *attr)
{
if (library_) {
const char *type_name = getAttrString(attr);
if (type_name) {
if (stringEq(type_name, "table_lookup"))
library_->setDelayModelType(delay_model_table);
else if (stringEq(type_name, "generic_cmos"))
library_->setDelayModelType(delay_model_cmos_linear);
else if (stringEq(type_name, "piecewise_cmos")) {
library_->setDelayModelType(delay_model_cmos_pwl);
libWarn(attr, "delay_model %s not supported.\n.", type_name);
}
else if (stringEq(type_name, "cmos2")) {
library_->setDelayModelType(delay_model_cmos2);
libWarn(attr, "delay_model %s not supported.\n.", type_name);
}
else if (stringEq(type_name, "polynomial")) {
library_->setDelayModelType(delay_model_polynomial);
libWarn(attr, "delay_model %s not supported.\n.", type_name);
}
// Evil IBM garbage.
else if (stringEq(type_name, "dcm")) {
library_->setDelayModelType(delay_model_dcm);
libWarn(attr, "delay_model %s not supported.\n.", type_name);
}
else
libWarn(attr, "unknown delay_model %s\n.", type_name);
}
}
}
void
LibertyReader::visitBusStyle(LibertyAttr *attr)
{
if (library_) {
const char *bus_style = getAttrString(attr);
// Assume bus style is of the form "%s[%d]".
if (bus_style
&& strlen(bus_style) == 6
&& bus_style[0] == '%'
&& bus_style[1] == 's'
&& bus_style[3] == '%'
&& bus_style[4] == 'd')
library_->setBusBrkts(bus_style[2], bus_style[5]);
else
libWarn(attr, "unknown bus_naming_style format.\n");
}
}
void
LibertyReader::visitNomTemp(LibertyAttr *attr)
{
if (library_) {
float value;
bool valid;
getAttrFloat(attr, value, valid);
if (valid)
library_->setNominalTemperature(value);
}
}
void
LibertyReader::visitNomProc(LibertyAttr *attr)
{
if (library_) {
float value;
bool valid;
getAttrFloat(attr, value, valid);
if (valid)
library_->setNominalProcess(value);
}
}
void
LibertyReader::visitNomVolt(LibertyAttr *attr)
{
if (library_) {
float value;
bool valid;
getAttrFloat(attr, value, valid);
if (valid)
library_->setNominalVoltage(value);
}
}
void
LibertyReader::visitDefaultInoutPinCap(LibertyAttr *attr)
{
if (library_) {
float value;
bool exists;
getAttrFloat(attr, value, exists);
if (exists)
library_->setDefaultBidirectPinCap(value * cap_scale_);
}
}
void
LibertyReader::visitDefaultInputPinCap(LibertyAttr *attr)
{
if (library_) {
float value;
bool exists;
getAttrFloat(attr, value, exists);
if (exists)
library_->setDefaultInputPinCap(value * cap_scale_);
}
}
void
LibertyReader::visitDefaultOutputPinCap(LibertyAttr *attr)
{
if (library_) {
float value;
bool exists;
getAttrFloat(attr, value, exists);
if (exists)
library_->setDefaultOutputPinCap(value * cap_scale_);
}
}
void
LibertyReader::visitDefaultMaxTransition(LibertyAttr *attr)
{
if (library_){
float value;
bool exists;
getAttrFloat(attr, value, exists);
if (exists)
library_->setDefaultMaxSlew(value * time_scale_);
}
}
void
LibertyReader::visitDefaultMaxFanout(LibertyAttr *attr)
{
if (library_){
float value;
bool exists;
getAttrFloat(attr, value, exists);
if (exists)
library_->setDefaultMaxFanout(value);
}
}
void
LibertyReader::visitDefaultIntrinsicRise(LibertyAttr *attr)
{
visitDefaultIntrinsic(attr, TransRiseFall::rise());
}
void
LibertyReader::visitDefaultIntrinsicFall(LibertyAttr *attr)
{
visitDefaultIntrinsic(attr, TransRiseFall::fall());
}
void
LibertyReader::visitDefaultIntrinsic(LibertyAttr *attr,
TransRiseFall *tr)
{
if (library_) {
float value;
bool exists;
getAttrFloat(attr, value, exists);
if (exists)
library_->setDefaultIntrinsic(tr, value * time_scale_);
}
}
void
LibertyReader::visitDefaultInoutPinRiseRes(LibertyAttr *attr)
{
visitDefaultInoutPinRes(attr, TransRiseFall::rise());
}
void
LibertyReader::visitDefaultInoutPinFallRes(LibertyAttr *attr)
{
visitDefaultInoutPinRes(attr, TransRiseFall::fall());
}
void
LibertyReader::visitDefaultInoutPinRes(LibertyAttr *attr,
TransRiseFall *tr)
{
if (library_) {
float value;
bool exists;
getAttrFloat(attr, value, exists);
if (exists)
library_->setDefaultBidirectPinRes(tr, value * res_scale_);
}
}
void
LibertyReader::visitDefaultOutputPinRiseRes(LibertyAttr *attr)
{
visitDefaultOutputPinRes(attr, TransRiseFall::rise());
}
void
LibertyReader::visitDefaultOutputPinFallRes(LibertyAttr *attr)
{
visitDefaultOutputPinRes(attr, TransRiseFall::fall());
}
void
LibertyReader::visitDefaultOutputPinRes(LibertyAttr *attr,
TransRiseFall *tr)
{
if (library_) {
float value;
bool exists;
getAttrFloat(attr, value, exists);
if (exists)
library_->setDefaultOutputPinRes(tr, value * res_scale_);
}
}
void
LibertyReader::visitDefaultFanoutLoad(LibertyAttr *attr)
{
if (library_) {
float value;
bool exists;
getAttrFloat(attr, value, exists);
if (exists)
library_->setDefaultFanoutLoad(value);
}
}
void
LibertyReader::visitDefaultWireLoad(LibertyAttr *attr)
{
if (library_) {
const char *value = getAttrString(attr);
if (value)
default_wireload_ = stringCopy(value);
}
}
void
LibertyReader::visitDefaultWireLoadMode(LibertyAttr *attr)
{
if (library_) {
const char *wire_load_mode = getAttrString(attr);
if (wire_load_mode) {
WireloadMode mode = stringWireloadMode(wire_load_mode);
if (mode != wire_load_mode_unknown)
library_->setDefaultWireloadMode(mode);
else
libWarn(attr, "default_wire_load_mode %s not found.\n",