7116481: Commercial features in Hotspot must be gated by a switch

Summary: Add -XX:+UnlockCommercialVMOptions to gate use of commercial feature switches in the same way as -XX:UnlockDiagnosticVMOptions gates use of diagnostic feature switches.
Reviewed-by: jwilhelm, kamg

src/share/vm/runtime/globals.cpp

@@ -46,8 +46,8 @@
 
 RUNTIME_FLAGS(MATERIALIZE_DEVELOPER_FLAG, MATERIALIZE_PD_DEVELOPER_FLAG, \
               MATERIALIZE_PRODUCT_FLAG, MATERIALIZE_PD_PRODUCT_FLAG, \
-              MATERIALIZE_DIAGNOSTIC_FLAG, MATERIALIZE_EXPERIMENTAL_FLAG, \
-              MATERIALIZE_NOTPRODUCT_FLAG, \
+              MATERIALIZE_COMMERCIAL_FLAG, MATERIALIZE_DIAGNOSTIC_FLAG, \
+              MATERIALIZE_EXPERIMENTAL_FLAG, MATERIALIZE_NOTPRODUCT_FLAG, \
               MATERIALIZE_MANAGEABLE_FLAG, MATERIALIZE_PRODUCT_RW_FLAG, \
               MATERIALIZE_LP64_PRODUCT_FLAG)
 
@@ -56,13 +56,16 @@ RUNTIME_OS_FLAGS(MATERIALIZE_DEVELOPER_FLAG, MATERIALIZE_PD_DEVELOPER_FLAG, \
                  MATERIALIZE_DIAGNOSTIC_FLAG, MATERIALIZE_NOTPRODUCT_FLAG)
 
 bool Flag::is_unlocker() const {
-  return strcmp(name, "UnlockDiagnosticVMOptions") == 0     ||
+  return strcmp(name, "UnlockCommercialVMOptions") == 0     ||
+         strcmp(name, "UnlockDiagnosticVMOptions") == 0     ||
          strcmp(name, "UnlockExperimentalVMOptions") == 0;
 
 }
 
 bool Flag::is_unlocked() const {
-  if (strcmp(kind, "{diagnostic}") == 0) {
+  if (strcmp(kind, "{commercial}") == 0) {
+    return UnlockCommercialVMOptions;
+  } else if (strcmp(kind, "{diagnostic}") == 0) {
     if (strcmp(name, "EnableInvokeDynamic") == 0 && UnlockExperimentalVMOptions && !UnlockDiagnosticVMOptions) {
       // transitional logic to allow tests to run until they are changed
       static int warned;
@@ -165,6 +168,7 @@ void Flag::print_as_flag(outputStream* st) {
 
 #define RUNTIME_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{product}", DEFAULT },
 #define RUNTIME_PD_PRODUCT_FLAG_STRUCT(type, name, doc)     { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{pd product}", DEFAULT },
+#define RUNTIME_COMMERCIAL_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{commercial}", DEFAULT },
 #define RUNTIME_DIAGNOSTIC_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{diagnostic}", DEFAULT },
 #define RUNTIME_EXPERIMENTAL_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{experimental}", DEFAULT },
 #define RUNTIME_MANAGEABLE_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{manageable}", DEFAULT },
@@ -227,7 +231,7 @@ void Flag::print_as_flag(outputStream* st) {
 #endif
 
 static Flag flagTable[] = {
- RUNTIME_FLAGS(RUNTIME_DEVELOP_FLAG_STRUCT, RUNTIME_PD_DEVELOP_FLAG_STRUCT, RUNTIME_PRODUCT_FLAG_STRUCT, RUNTIME_PD_PRODUCT_FLAG_STRUCT, RUNTIME_DIAGNOSTIC_FLAG_STRUCT, RUNTIME_EXPERIMENTAL_FLAG_STRUCT, RUNTIME_NOTPRODUCT_FLAG_STRUCT, RUNTIME_MANAGEABLE_FLAG_STRUCT, RUNTIME_PRODUCT_RW_FLAG_STRUCT, RUNTIME_LP64_PRODUCT_FLAG_STRUCT)
+ RUNTIME_FLAGS(RUNTIME_DEVELOP_FLAG_STRUCT, RUNTIME_PD_DEVELOP_FLAG_STRUCT, RUNTIME_PRODUCT_FLAG_STRUCT, RUNTIME_PD_PRODUCT_FLAG_STRUCT, RUNTIME_COMMERCIAL_FLAG_STRUCT, RUNTIME_DIAGNOSTIC_FLAG_STRUCT, RUNTIME_EXPERIMENTAL_FLAG_STRUCT, RUNTIME_NOTPRODUCT_FLAG_STRUCT, RUNTIME_MANAGEABLE_FLAG_STRUCT, RUNTIME_PRODUCT_RW_FLAG_STRUCT, RUNTIME_LP64_PRODUCT_FLAG_STRUCT)
  RUNTIME_OS_FLAGS(RUNTIME_DEVELOP_FLAG_STRUCT, RUNTIME_PD_DEVELOP_FLAG_STRUCT, RUNTIME_PRODUCT_FLAG_STRUCT, RUNTIME_PD_PRODUCT_FLAG_STRUCT, RUNTIME_DIAGNOSTIC_FLAG_STRUCT, RUNTIME_NOTPRODUCT_FLAG_STRUCT)
 #ifndef SERIALGC
  G1_FLAGS(RUNTIME_DEVELOP_FLAG_STRUCT, RUNTIME_PD_DEVELOP_FLAG_STRUCT, RUNTIME_PRODUCT_FLAG_STRUCT, RUNTIME_PD_PRODUCT_FLAG_STRUCT, RUNTIME_DIAGNOSTIC_FLAG_STRUCT, RUNTIME_EXPERIMENTAL_FLAG_STRUCT, RUNTIME_NOTPRODUCT_FLAG_STRUCT, RUNTIME_MANAGEABLE_FLAG_STRUCT, RUNTIME_PRODUCT_RW_FLAG_STRUCT)
@@ -257,8 +261,8 @@ Flag* Flag::find_flag(char* name, size_t length) {
   for (Flag* current = &flagTable[0]; current->name; current++) {
     if (str_equal(current->name, name, length)) {
       if (!(current->is_unlocked() || current->is_unlocker())) {
-        // disable use of diagnostic or experimental flags until they
-        // are explicitly unlocked
+        // disable use of commercial, diagnostic or experimental
+        // flags until they are explicitly unlocked
         return NULL;
       }
       return current;

src/share/vm/runtime/globals.hpp

@@ -373,7 +373,7 @@ class CommandLineFlags {
 // The type "ccstr" is an alias for "const char*" and is used
 // only in this file, because the macrology requires single-token type names.
 
-// Note: Diagnostic options not meant for VM tuning or for product modes.
+// Note: Diagnostic options are not meant for VM tuning or for product modes.
 // They are to be used for VM quality assurance or field diagnosis
 // of VM bugs.  They are hidden so that users will not be encouraged to
 // try them as if they were VM ordinary execution options.  However, they
@@ -383,6 +383,12 @@ class CommandLineFlags {
 // option, you must first specify +UnlockDiagnosticVMOptions.
 // (This master switch also affects the behavior of -Xprintflags.)
 //
+//
+// commercial flags support features for which Oracle charges a fee for
+//    production use, though they're free for development and/or evaluation.
+//    There's no enforcement mechanism in Hotspot other than that
+//    -XX:+UnlockCommercialVMOptions must first be specified in order to use them.
+//
 // experimental flags are in support of features that are not
 //    part of the officially supported product, but are available
 //    for experimenting with. They could, for example, be performance
@@ -428,7 +434,7 @@ class CommandLineFlags {
 // Note that when there is a need to support develop flags to be writeable,
 // it can be done in the same way as product_rw.
 
-#define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \
+#define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, commercial, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \
                                                                             \
   lp64_product(bool, UseCompressedOops, false,                              \
             "Use 32-bit object references in 64-bit VM. "                   \
@@ -466,11 +472,16 @@ class CommandLineFlags {
   experimental(bool, UseMemSetInBOT, true,                                  \
           "(Unstable) uses memset in BOT updates in GC code")               \
                                                                             \
+  commercial(bool, UnlockCommercialVMOptions, false,                        \
+          "Enable normal processing of flags relating to commercial "       \
+          "features")                                                       \
+                                                                            \
   diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug,                  \
           "Enable normal processing of flags relating to field diagnostics")\
                                                                             \
   experimental(bool, UnlockExperimentalVMOptions, false,                    \
-          "Enable normal processing of flags relating to experimental features")\
+          "Enable normal processing of flags relating to experimental "     \
+          "features")                                                       \
                                                                             \
   product(bool, JavaMonitorsInStackTrace, true,                             \
           "Print info. about Java monitor locks when the stacks are dumped")\
@@ -578,7 +589,8 @@ class CommandLineFlags {
           "Verify stack of each thread when it is entering a runtime call") \
                                                                             \
   diagnostic(bool, ForceUnreachable, false,                                 \
-          "Make all non code cache addresses to be unreachable with forcing use of 64bit literal fixups") \
+          "Make all non code cache addresses unreachable by forcing use of "\
+          "64-bit literal fixups")                                          \
                                                                             \
   notproduct(bool, StressDerivedPointers, false,                            \
           "Force scavenge when a derived pointers is detected on stack "    \
@@ -3852,7 +3864,11 @@ class CommandLineFlags {
   product(bool, UseVMInterruptibleIO, false,                                \
           "(Unstable, Solaris-specific) Thread interrupt before or with "   \
           "EINTR for I/O operations results in OS_INTRPT. The default value"\
-          " of this flag is true for JDK 6 and earliers")
+          " of this flag is true for JDK 6 and earlier")                    \
+                                                                            \
+  commercial(bool, FlightRecorder, false,                                   \
+          "Enable Java Flight Recorder")
+
 
 /*
  *  Macros for factoring of globals
@@ -3861,6 +3877,7 @@ class CommandLineFlags {
 // Interface macros
 #define DECLARE_PRODUCT_FLAG(type, name, value, doc)    extern "C" type name;
 #define DECLARE_PD_PRODUCT_FLAG(type, name, doc)        extern "C" type name;
+#define DECLARE_COMMERCIAL_FLAG(type, name, value, doc) extern "C" type name;
 #define DECLARE_DIAGNOSTIC_FLAG(type, name, value, doc) extern "C" type name;
 #define DECLARE_EXPERIMENTAL_FLAG(type, name, value, doc) extern "C" type name;
 #define DECLARE_MANAGEABLE_FLAG(type, name, value, doc) extern "C" type name;
@@ -3884,6 +3901,7 @@ class CommandLineFlags {
 // Implementation macros
 #define MATERIALIZE_PRODUCT_FLAG(type, name, value, doc)   type name = value;
 #define MATERIALIZE_PD_PRODUCT_FLAG(type, name, doc)       type name = pd_##name;
+#define MATERIALIZE_COMMERCIAL_FLAG(type, name, value, doc) type name = value;
 #define MATERIALIZE_DIAGNOSTIC_FLAG(type, name, value, doc) type name = value;
 #define MATERIALIZE_EXPERIMENTAL_FLAG(type, name, value, doc) type name = value;
 #define MATERIALIZE_MANAGEABLE_FLAG(type, name, value, doc) type name = value;
@@ -3903,7 +3921,7 @@ class CommandLineFlags {
 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) /* flag is constant */
 #endif // _LP64
 
-RUNTIME_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG, DECLARE_MANAGEABLE_FLAG, DECLARE_PRODUCT_RW_FLAG, DECLARE_LP64_PRODUCT_FLAG)
+RUNTIME_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_COMMERCIAL_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG, DECLARE_MANAGEABLE_FLAG, DECLARE_PRODUCT_RW_FLAG, DECLARE_LP64_PRODUCT_FLAG)
 
 RUNTIME_OS_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG)
 

src/share/vm/runtime/globals_extension.hpp

@@ -35,6 +35,7 @@
 
 #define RUNTIME_PRODUCT_FLAG_MEMBER(type, name, value, doc)    FLAG_MEMBER(name),
 #define RUNTIME_PD_PRODUCT_FLAG_MEMBER(type, name, doc)        FLAG_MEMBER(name),
+#define RUNTIME_COMMERCIAL_FLAG_MEMBER(type, name, value, doc) FLAG_MEMBER(name),
 #define RUNTIME_DIAGNOSTIC_FLAG_MEMBER(type, name, value, doc) FLAG_MEMBER(name),
 #define RUNTIME_EXPERIMENTAL_FLAG_MEMBER(type, name, value, doc) FLAG_MEMBER(name),
 #define RUNTIME_MANAGEABLE_FLAG_MEMBER(type, name, value, doc) FLAG_MEMBER(name),
@@ -82,7 +83,7 @@
 #endif
 
 typedef enum {
- RUNTIME_FLAGS(RUNTIME_DEVELOP_FLAG_MEMBER, RUNTIME_PD_DEVELOP_FLAG_MEMBER, RUNTIME_PRODUCT_FLAG_MEMBER, RUNTIME_PD_PRODUCT_FLAG_MEMBER, RUNTIME_DIAGNOSTIC_FLAG_MEMBER, RUNTIME_EXPERIMENTAL_FLAG_MEMBER, RUNTIME_NOTPRODUCT_FLAG_MEMBER, RUNTIME_MANAGEABLE_FLAG_MEMBER, RUNTIME_PRODUCT_RW_FLAG_MEMBER, RUNTIME_LP64_PRODUCT_FLAG_MEMBER)
+ RUNTIME_FLAGS(RUNTIME_DEVELOP_FLAG_MEMBER, RUNTIME_PD_DEVELOP_FLAG_MEMBER, RUNTIME_PRODUCT_FLAG_MEMBER, RUNTIME_PD_PRODUCT_FLAG_MEMBER, RUNTIME_COMMERCIAL_FLAG_MEMBER, RUNTIME_DIAGNOSTIC_FLAG_MEMBER, RUNTIME_EXPERIMENTAL_FLAG_MEMBER, RUNTIME_NOTPRODUCT_FLAG_MEMBER, RUNTIME_MANAGEABLE_FLAG_MEMBER, RUNTIME_PRODUCT_RW_FLAG_MEMBER, RUNTIME_LP64_PRODUCT_FLAG_MEMBER)
  RUNTIME_OS_FLAGS(RUNTIME_DEVELOP_FLAG_MEMBER, RUNTIME_PD_DEVELOP_FLAG_MEMBER, RUNTIME_PRODUCT_FLAG_MEMBER, RUNTIME_PD_PRODUCT_FLAG_MEMBER, RUNTIME_DIAGNOSTIC_FLAG_MEMBER, RUNTIME_NOTPRODUCT_FLAG_MEMBER)
 #ifndef KERNEL
  G1_FLAGS(RUNTIME_DEVELOP_FLAG_MEMBER, RUNTIME_PD_DEVELOP_FLAG_MEMBER, RUNTIME_PRODUCT_FLAG_MEMBER, RUNTIME_PD_PRODUCT_FLAG_MEMBER, RUNTIME_DIAGNOSTIC_FLAG_MEMBER, RUNTIME_EXPERIMENTAL_FLAG_MEMBER, RUNTIME_NOTPRODUCT_FLAG_MEMBER, RUNTIME_MANAGEABLE_FLAG_MEMBER, RUNTIME_PRODUCT_RW_FLAG_MEMBER)
@@ -102,6 +103,7 @@ typedef enum {
 
 #define RUNTIME_PRODUCT_FLAG_MEMBER_WITH_TYPE(type, name, value, doc)    FLAG_MEMBER_WITH_TYPE(name,type),
 #define RUNTIME_PD_PRODUCT_FLAG_MEMBER_WITH_TYPE(type, name, doc)        FLAG_MEMBER_WITH_TYPE(name,type),
+#define RUNTIME_COMMERCIAL_FLAG_MEMBER_WITH_TYPE(type, name, value, doc) FLAG_MEMBER_WITH_TYPE(name,type),
 #define RUNTIME_DIAGNOSTIC_FLAG_MEMBER_WITH_TYPE(type, name, value, doc) FLAG_MEMBER_WITH_TYPE(name,type),
 #define RUNTIME_EXPERIMENTAL_FLAG_MEMBER_WITH_TYPE(type, name, value, doc) FLAG_MEMBER_WITH_TYPE(name,type),
 #define RUNTIME_MANAGEABLE_FLAG_MEMBER_WITH_TYPE(type, name, value, doc) FLAG_MEMBER_WITH_TYPE(name,type),
@@ -153,6 +155,7 @@ typedef enum {
                RUNTIME_PD_DEVELOP_FLAG_MEMBER_WITH_TYPE,
                RUNTIME_PRODUCT_FLAG_MEMBER_WITH_TYPE,
                RUNTIME_PD_PRODUCT_FLAG_MEMBER_WITH_TYPE,
+               RUNTIME_COMMERCIAL_FLAG_MEMBER_WITH_TYPE,
                RUNTIME_DIAGNOSTIC_FLAG_MEMBER_WITH_TYPE,
                RUNTIME_EXPERIMENTAL_FLAG_MEMBER_WITH_TYPE,
                RUNTIME_NOTPRODUCT_FLAG_MEMBER_WITH_TYPE,