require 'rbconfig' module JITSupport JIT_TIMEOUT = 600 # 10min for each... JIT_SUCCESS_PREFIX = 'JIT success \(\d+\.\dms\)' JIT_RECOMPILE_PREFIX = 'JIT recompile' JIT_COMPACTION_PREFIX = 'JIT compaction \(\d+\.\dms\)' UNSUPPORTED_COMPILERS = [ %r[\A.*/bin/intel64/icc\b], %r[\A/opt/developerstudio\d+\.\d+/bin/cc\z], ] # debian-riscv64: "gcc: internal compiler error: Segmentation fault signal terminated program cc1" https://rubyci.org/logs/rubyci.s3.amazonaws.com/debian-riscv64/ruby-master/log/20200420T083601Z.fail.html.gz # freebsd12: cc1 internal failure https://rubyci.org/logs/rubyci.s3.amazonaws.com/freebsd12/ruby-master/log/20200306T103003Z.fail.html.gz # rhel8: one or more PCH files were found, but they were invalid https://rubyci.org/logs/rubyci.s3.amazonaws.com/rhel8/ruby-master/log/20200306T153003Z.fail.html.gz # centos8: ditto https://rubyci.org/logs/rubyci.s3.amazonaws.com/centos8/ruby-master/log/20200512T003004Z.fail.html.gz PENDING_RUBYCI_NICKNAMES = %w[ debian-riscv64 freebsd12 rhel8 centos8 ] module_function # Run Ruby script with --jit-wait (Synchronous JIT compilation). # Returns [stdout, stderr] def eval_with_jit(env = nil, script, **opts) stdout, stderr = nil, nil # retry 3 times while cc1 error happens. 3.times do |i| stdout, stderr, status = eval_with_jit_without_retry(env, script, **opts) assert_equal(true, status.success?, "Failed to run script with JIT:\n#{code_block(script)}\nstdout:\n#{code_block(stdout)}\nstderr:\n#{code_block(stderr)}") break unless retried_stderr?(stderr) end [stdout, stderr] end def eval_with_jit_without_retry(env = nil, script, verbose: 0, min_calls: 5, save_temps: false, max_cache: 1000, wait: true, timeout: JIT_TIMEOUT) args = [ '--disable-gems', "--jit-verbose=#{verbose}", "--jit-min-calls=#{min_calls}", "--jit-max-cache=#{max_cache}", ] args << '--jit-wait' if wait args << '--jit-save-temps' if save_temps args << '--jit-debug' if defined?(@jit_debug) && @jit_debug args << '-e' << script base_env = { 'MJIT_SEARCH_BUILD_DIR' => 'true' } # workaround to skip requiring `make install` for `make test-all` if preloadenv = RbConfig::CONFIG['PRELOADENV'] and !preloadenv.empty? so = "mjit_build_dir.#{RbConfig::CONFIG['SOEXT']}" base_env[preloadenv] = File.realpath(so) rescue nil end args.unshift(env ? base_env.merge!(env) : base_env) EnvUtil.invoke_ruby(args, '', true, true, timeout: timeout, ) end def supported? return @supported if defined?(@supported) @supported = RbConfig::CONFIG["MJIT_SUPPORT"] != 'no' && UNSUPPORTED_COMPILERS.all? do |regexp| !regexp.match?(RbConfig::CONFIG['MJIT_CC']) end && !appveyor_pdb_corrupted? && !PENDING_RUBYCI_NICKNAMES.include?(ENV['RUBYCI_NICKNAME']) end # AppVeyor's Visual Studio 2013 / 2015 are known to spuriously generate broken pch / pdb, like: # error C2859: c:\projects\ruby\x64-mswin_120\include\ruby-2.8.0\x64-mswin64_120\rb_mjit_header-2.8.0.pdb # is not the pdb file that was used when this precompiled header was created, recreate the precompiled header. # https://ci.appveyor.com/project/ruby/ruby/builds/32159878/job/l2p38snw8yxxpp8h # # Until we figure out why, this allows us to skip testing JIT when it happens. def appveyor_pdb_corrupted? return false unless ENV.key?('APPVEYOR') stdout, _stderr, _status = eval_with_jit_without_retry('proc {}.call', verbose: 2, min_calls: 1) stdout.include?('.pdb is not the pdb file that was used when this precompiled header was created, recreate the precompiled header.') end def remove_mjit_logs(stderr) if defined?(RubyVM::JIT) && RubyVM::JIT.enabled? # utility for -DFORCE_MJIT_ENABLE stderr.gsub(/^MJIT warning: Skipped to compile unsupported instruction: \w+\n/m, '') else stderr end end def code_block(code) %Q["""\n#{code}\n"""\n\n] end # We're retrying cc1 not found error on gcc, which should be solved in the future but ignored for now. def retried_stderr?(stderr) RbConfig::CONFIG['CC'].start_with?('gcc') && stderr.include?("error trying to exec 'cc1': execvp: No such file or directory") end end