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https://github.com/verilator/verilator.git
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b4b74d72f0
This API is used if the user copies the process using `fork` and similar OS-level mechanisms. The `at_clone` member function ensures that all model-allocated resources are re-allocated, such that the copied child process/model can simulate correctly. A typical allocated resource is the thread pool, which every model has its own pool.
130 lines
4.2 KiB
Perl
Executable File
130 lines
4.2 KiB
Perl
Executable File
#!/usr/bin/env perl
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if (!$::Driver) { use FindBin; exec("$FindBin::Bin/bootstrap.pl", @ARGV, $0); die; }
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# DESCRIPTION: Verilator: Verilog Test driver/expect definition
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#
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# Copyright 2003 by Wilson Snyder. This program is free software; you
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# can redistribute it and/or modify it under the terms of either the GNU
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# Lesser General Public License Version 3 or the Perl Artistic License
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# Version 2.0.
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# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
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scenarios(vlt_all => 1);
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while (1) {
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# This rule requires GNU make > 4.1 (or so, known broken in 3.81)
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#%__Slow.o: %__Slow.cpp
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# $(OBJCACHE) $(CXX) $(CXXFLAGS) $(CPPFLAGS) $(OPT_SLOW) -c -o $@ $<
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if (make_version() < 4.1) {
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skip("Test requires GNU Make version >= 4.1");
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last;
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}
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compile(
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v_flags2 => ["--trace --output-split 1 --output-split-cfuncs 1 --exe ../$Self->{main_filename}"],
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verilator_make_gmake => 0,
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);
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# We don't use the standard test_regress rules, as want to test the rules
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# properly build
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run(logfile => "$Self->{obj_dir}/vlt_gcc.log",
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tee => $self->{verbose},
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cmd=>[$ENV{MAKE},
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"-C " . $Self->{obj_dir},
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"-f $Self->{vm_prefix}.mk",
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"-j 4",
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"VM_PREFIX=$Self->{vm_prefix}",
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"TEST_OBJ_DIR=$Self->{obj_dir}",
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"CPPFLAGS_DRIVER=-D".uc($Self->{name}),
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($opt_verbose ? "CPPFLAGS_DRIVER2=-DTEST_VERBOSE=1" : ""),
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"OPT_FAST=-O2",
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"OPT_SLOW=-O0",
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"OPT_GLOBAL=-Os",
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($param{make_flags}||""),
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]);
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execute(
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check_finished => 1,
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);
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# Splitting should set VM_PARALLEL_BUILDS to 1 by default
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file_grep("$Self->{obj_dir}/$Self->{vm_prefix}_classes.mk", qr/VM_PARALLEL_BUILDS\s*=\s*1/);
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check_splits();
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check_no_all_file();
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check_gcc_flags("$Self->{obj_dir}/vlt_gcc.log");
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ok(1);
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last;
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}
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1;
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sub check_splits {
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my $got1;
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my $gotSyms1;
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foreach my $file (glob("$Self->{obj_dir}/*.cpp")) {
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if ($file =~ /Syms__1/) {
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$gotSyms1 = 1;
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} elsif ($file =~ /__1/) {
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$got1 = 1;
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}
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check_cpp($file);
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}
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$got1 or error("No __1 split file found");
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$gotSyms1 or error("No Syms__1 split file found");
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}
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sub check_no_all_file {
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foreach my $file (glob("$Self->{obj_dir}/*.cpp")) {
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if ($file =~ qr/__ALL.cpp/) {
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error("__ALL.cpp file found: $file");
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}
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}
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}
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sub check_cpp {
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my $filename = shift;
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my $size = -s $filename;
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printf " File %6d %s\n", $size, $filename if $Self->{verbose};
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my $fh = IO::File->new("<$filename") or error("$! $filenme");
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my @funcs;
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while (defined(my $line = $fh->getline)) {
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if ($line =~ /^(void|IData)\s+(.*::.*){/) {
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my $func = $2;
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$func =~ s/\(.*$//;
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print "\tFunc $func\n" if $Self->{verbose};
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if ($func !~ /::_eval_initial_loop$/
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&& $func !~ /::__Vconfigure$/
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&& $func !~ /::trace$/
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&& $func !~ /::traceInit$/
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&& $func !~ /::traceFull$/
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&& $func !~ /::final$/
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&& $func !~ /::prepareClone$/
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&& $func !~ /::atClone$/
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) {
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push @funcs, $func;
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}
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}
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}
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if ($#funcs > 0) {
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error("Split had multiple functions in $filename\n\t" . join("\n\t", @funcs));
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}
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}
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sub check_gcc_flags {
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my $filename = shift;
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my $fh = IO::File->new("<$filename") or error("$! $filenme");
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while (defined(my $line = $fh->getline)) {
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chomp $line;
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print ":log: $line\n" if $Self->{verbose};
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if ($line =~ /$Self->{vm_prefix}\S*\.cpp/) {
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my $filetype = ($line =~ /Slow|Syms/) ? "slow" : "fast";
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my $opt = ($line !~ /-O2/) ? "slow" : "fast";
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print "$filetype, $opt, $line\n" if $Self->{verbose};
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if ($filetype ne $opt) {
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error("${filetype} file compiled as if was ${opt}: $line");
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}
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} elsif ($line =~ /\.cpp/ and $line !~ /-Os/) {
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error("library file not compiled with OPT_GLOBAL: $line");
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}
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}
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}
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