2958 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) {
2959 warning("forcing ScavengeRootsInCode non-zero because EnableMethodHandles or AnonymousClasses is true");
2960 }
2961 ScavengeRootsInCode = 1;
2962 }
2963 #ifdef COMPILER2
2964 if (EnableInvokeDynamic && DoEscapeAnalysis) {
2965 // TODO: We need to find rules for invokedynamic and EA. For now,
2966 // simply disable EA by default.
2967 if (FLAG_IS_DEFAULT(DoEscapeAnalysis)) {
2968 DoEscapeAnalysis = false;
2969 }
2970 }
2971 #endif
2972
2973 if (PrintGCDetails) {
2974 // Turn on -verbose:gc options as well
2975 PrintGC = true;
2976 }
2977
2978 #if defined(_LP64) && defined(COMPILER1) && !defined(TIERED)
2979 UseCompressedOops = false;
2980 #endif
2981
2982 #if defined(_LP64)
2983 if ((DumpSharedSpaces || RequireSharedSpaces) && UseCompressedOops) {
2984 // Disable compressed oops with shared spaces
2985 UseCompressedOops = false;
2986 }
2987 #endif
2988
2989 // Set object alignment values.
2990 set_object_alignment();
2991
2992 #ifdef SERIALGC
2993 force_serial_gc();
2994 #endif // SERIALGC
2995 #ifdef KERNEL
2996 no_shared_spaces();
2997 #endif // KERNEL
2998
2999 // Set flags based on ergonomics.
3000 set_ergonomics_flags();
3001
3002 #ifdef _LP64
3003 // XXX JSR 292 currently does not support compressed oops.
3004 if (EnableMethodHandles && UseCompressedOops) {
3005 if (FLAG_IS_DEFAULT(UseCompressedOops) || FLAG_IS_ERGO(UseCompressedOops)) {
3006 UseCompressedOops = false;
3007 }
3008 }
3009 #endif // _LP64
3010
3011 // Check the GC selections again.
3012 if (!check_gc_consistency()) {
3013 return JNI_EINVAL;
3014 }
3015
3016 if (TieredCompilation) {
3017 set_tiered_flags();
3018 } else {
3019 // Check if the policy is valid. Policies 0 and 1 are valid for non-tiered setup.
3020 if (CompilationPolicyChoice >= 2) {
3021 vm_exit_during_initialization(
3022 "Incompatible compilation policy selected", NULL);
3023 }
3024 }
3025
3026 #ifndef KERNEL
3027 if (UseConcMarkSweepGC) {
|
2958 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) {
2959 warning("forcing ScavengeRootsInCode non-zero because EnableMethodHandles or AnonymousClasses is true");
2960 }
2961 ScavengeRootsInCode = 1;
2962 }
2963 #ifdef COMPILER2
2964 if (EnableInvokeDynamic && DoEscapeAnalysis) {
2965 // TODO: We need to find rules for invokedynamic and EA. For now,
2966 // simply disable EA by default.
2967 if (FLAG_IS_DEFAULT(DoEscapeAnalysis)) {
2968 DoEscapeAnalysis = false;
2969 }
2970 }
2971 #endif
2972
2973 if (PrintGCDetails) {
2974 // Turn on -verbose:gc options as well
2975 PrintGC = true;
2976 }
2977
2978 // Set object alignment values.
2979 set_object_alignment();
2980
2981 #ifdef SERIALGC
2982 force_serial_gc();
2983 #endif // SERIALGC
2984 #ifdef KERNEL
2985 no_shared_spaces();
2986 #endif // KERNEL
2987
2988 // Set flags based on ergonomics.
2989 set_ergonomics_flags();
2990
2991 #ifdef _LP64
2992 // XXX JSR 292 currently does not support compressed oops.
2993 if (EnableMethodHandles && UseCompressedOops) {
2994 if (FLAG_IS_DEFAULT(UseCompressedOops) || FLAG_IS_ERGO(UseCompressedOops)) {
2995 FLAG_SET_DEFAULT(UseCompressedOops, false);
2996 }
2997 }
2998
2999 # if defined(COMPILER1) && !defined(TIERED)
3000 FLAG_SET_DEFAULT(UseCompressedOops, false);
3001 # endif
3002
3003 if (UseCompressedOops && (DumpSharedSpaces || RequireSharedSpaces)) {
3004 // Disable compressed oops with shared spaces when dumping and or if spaces are explicitly on
3005 FLAG_SET_DEFAULT(UseCompressedOops, false);
3006 }
3007 if (UseCompressedOops && UseSharedSpaces) {
3008 FLAG_SET_DEFAULT(UseSharedSpaces, false); // Otherwise, disable the use of CDS, leave COOPS on.
3009 }
3010 #endif // _LP64
3011
3012 // Check the GC selections again.
3013 if (!check_gc_consistency()) {
3014 return JNI_EINVAL;
3015 }
3016
3017 if (TieredCompilation) {
3018 set_tiered_flags();
3019 } else {
3020 // Check if the policy is valid. Policies 0 and 1 are valid for non-tiered setup.
3021 if (CompilationPolicyChoice >= 2) {
3022 vm_exit_during_initialization(
3023 "Incompatible compilation policy selected", NULL);
3024 }
3025 }
3026
3027 #ifndef KERNEL
3028 if (UseConcMarkSweepGC) {
|