/* * Copyright (c) 2016, 2024, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ #include "precompiled.hpp" #include "compiler/compiler_globals.hpp" #include "gc/shared/gc_globals.hpp" #include "runtime/globals.hpp" #include "runtime/globals_extension.hpp" #include "runtime/flags/flagSetting.hpp" #include "runtime/flags/jvmFlag.hpp" #include "runtime/flags/jvmFlagAccess.hpp" #include "unittest.hpp" #define TEST_FLAG(f, type, value) \ do { \ ASSERT_TRUE(JVMFlag::find_flag(#f)->is_ ## type()); \ type original_value = f; \ { \ AutoSaveRestore FLAG_GUARD(f); \ f = value; \ } \ ASSERT_EQ(original_value, f); \ } while (0) TEST_VM(FlagGuard, bool_flag) { TEST_FLAG(AlwaysActAsServerClassMachine, bool, true); } TEST_VM(FlagGuard, int_flag) { TEST_FLAG(ParGCArrayScanChunk, int, 1337); } TEST_VM(FlagGuard, uint_flag) { TEST_FLAG(ConcGCThreads, uint, 1337); } TEST_VM(FlagGuard, size_t_flag) { TEST_FLAG(HeapSizePerGCThread, size_t, 1337); } TEST_VM(FlagGuard, uint64_t_flag) { TEST_FLAG(MaxRAM, uint64_t, 1337); } TEST_VM(FlagGuard, double_flag) { TEST_FLAG(CompileThresholdScaling, double, 3.141569); } TEST_VM(FlagGuard, ccstr_flag) { TEST_FLAG(PerfDataSaveFile, ccstr, "/a/random/path"); } // SharedArchiveConfigFile is used only during "java -Xshare:dump", so // it's safe to modify its value in gtest TEST_VM(FlagAccess, ccstr_flag) { FLAG_SET_CMDLINE(SharedArchiveConfigFile, ""); ASSERT_EQ(FLAG_IS_CMDLINE(SharedArchiveConfigFile), true); EXPECT_STREQ(SharedArchiveConfigFile, ""); FLAG_SET_ERGO(SharedArchiveConfigFile, "foobar"); ASSERT_EQ(FLAG_IS_ERGO(SharedArchiveConfigFile), true); EXPECT_STREQ(SharedArchiveConfigFile, "foobar"); FLAG_SET_ERGO(SharedArchiveConfigFile, nullptr); ASSERT_EQ(FLAG_IS_ERGO(SharedArchiveConfigFile), true); ASSERT_EQ(SharedArchiveConfigFile, nullptr); FLAG_SET_ERGO(SharedArchiveConfigFile, "xyz"); ASSERT_EQ(FLAG_IS_ERGO(SharedArchiveConfigFile), true); EXPECT_STREQ(SharedArchiveConfigFile, "xyz"); } template static JVMFlag::Error get_flag(const char* name) { JVMFlag* flag = (name == nullptr) ? nullptr : JVMFlag::find_flag(name); T val; return JVMFlagAccess::get(flag, &val); } TEST_VM(FlagAccess, wrong_format) { ASSERT_EQ((get_flag(nullptr)), JVMFlag::INVALID_FLAG); // MaxRAMPercentage is a double flag ASSERT_EQ((get_flag ("MaxRAMPercentage")), JVMFlag::WRONG_FORMAT); ASSERT_EQ((get_flag ("MaxRAMPercentage")), JVMFlag::WRONG_FORMAT); ASSERT_EQ((get_flag ("MaxRAMPercentage")), JVMFlag::WRONG_FORMAT); ASSERT_EQ((get_flag ("MaxRAMPercentage")), JVMFlag::WRONG_FORMAT); ASSERT_EQ((get_flag ("MaxRAMPercentage")), JVMFlag::WRONG_FORMAT); ASSERT_EQ((get_flag("MaxRAMPercentage")), JVMFlag::WRONG_FORMAT); ASSERT_EQ((get_flag ("MaxRAMPercentage")), JVMFlag::WRONG_FORMAT); ASSERT_EQ((get_flag ("MaxRAMPercentage")), JVMFlag::SUCCESS); }