File size: 2,470 Bytes
784ee2c | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 | proc lec_check_enabled { } {
return [expr {
[env_var_equals LEC_CHECK 1]
&& [info exists ::env(KEPLER_FORMAL_EXE)]
&& [file executable $::env(KEPLER_FORMAL_EXE)]
}]
}
proc write_lec_verilog { filename } {
set remove_cells [find_physical_only_masters]
if { [env_var_exists_and_non_empty REMOVE_CELLS_FOR_LEC] } {
lappend remove_cells {*}$::env(REMOVE_CELLS_FOR_LEC)
}
set out_file $::env(RESULTS_DIR)/$filename
write_verilog -remove_cells $remove_cells $out_file
# Add auxiliary Verilog files (e.g., blackbox stubs) for LEC
if { [env_var_exists_and_non_empty LEC_AUX_VERILOG_FILES] } {
set out [open $out_file a]
foreach aux_file $::env(LEC_AUX_VERILOG_FILES) {
if { ![file exists $aux_file] } {
close $out
error "LEC auxiliary Verilog file not found: $aux_file"
}
puts $out "\n// ORFS auxiliary Verilog for Kepler LEC: $aux_file"
set in [open $aux_file r]
fcopy $in $out
close $in
puts $out ""
}
close $out
}
}
proc write_lec_script { step file1 file2 } {
# Exclude select Liberty files from being passed to kepler-formal
if { [env_var_exists_and_non_empty REMOVE_LIBS_FOR_LEC] } {
foreach lib_to_remove $::env(REMOVE_LIBS_FOR_LEC) {
set remove_libs_set($lib_to_remove) 1
}
set lib_list [lmap item $::env(LIB_FILES) {
if { [info exists remove_libs_set($item)] } { continue }
set item
}]
} else {
set lib_list $::env(LIB_FILES)
}
set outfile [open "$::env(OBJECTS_DIR)/${step}_lec_test.yml" w]
puts $outfile "format: verilog"
puts $outfile "input_paths:"
puts $outfile " - $::env(RESULTS_DIR)/${file1}"
puts $outfile " - $::env(RESULTS_DIR)/${file2}"
puts $outfile "liberty_files:"
foreach libFile $lib_list {
puts $outfile " - $libFile"
}
puts $outfile "log_file: $::env(LOG_DIR)/${step}_lec_check.log"
close $outfile
}
proc run_lec_test { step file1 file2 } {
write_lec_script $step $file1 $file2
# tclint-disable-next-line command-args
eval exec $::env(KEPLER_FORMAL_EXE) --config $::env(OBJECTS_DIR)/${step}_lec_test.yml
try {
set count [exec grep -c "Found difference" $::env(LOG_DIR)/${step}_lec_check.log]
} trap CHILDSTATUS {results options} {
# This block executes if grep returns a non-zero exit code
set count 0
}
if { $count > 0 } {
error "Repair timing output failed lec test"
} else {
puts "Repair timing output passed lec test"
}
}
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