--- a/src/hotspot/share/runtime/globals.cpp Mon Apr 23 11:37:46 2018 -0700
+++ b/src/hotspot/share/runtime/globals.cpp Mon Apr 23 14:51:16 2018 -0500
@@ -29,9 +29,9 @@
#include "runtime/arguments.hpp"
#include "runtime/globals.hpp"
#include "runtime/globals_extension.hpp"
-#include "runtime/flags/jvmFlagConstraintList.hpp"
-#include "runtime/flags/jvmFlagWriteableList.hpp"
-#include "runtime/flags/jvmFlagRangeList.hpp"
+#include "runtime/commandLineFlagConstraintList.hpp"
+#include "runtime/commandLineFlagWriteableList.hpp"
+#include "runtime/commandLineFlagRangeList.hpp"
#include "runtime/os.hpp"
#include "runtime/sharedRuntime.hpp"
#include "trace/tracing.hpp"
@@ -85,3 +85,1473 @@
IGNORE_WRITEABLE)
MATERIALIZE_FLAGS_EXT
+
+#define DEFAULT_RANGE_STR_CHUNK_SIZE 64
+static char* create_range_str(const char *fmt, ...) {
+ static size_t string_length = DEFAULT_RANGE_STR_CHUNK_SIZE;
+ static char* range_string = NEW_C_HEAP_ARRAY(char, string_length, mtLogging);
+
+ int size_needed = 0;
+ do {
+ va_list args;
+ va_start(args, fmt);
+ size_needed = jio_vsnprintf(range_string, string_length, fmt, args);
+ va_end(args);
+
+ if (size_needed < 0) {
+ string_length += DEFAULT_RANGE_STR_CHUNK_SIZE;
+ range_string = REALLOC_C_HEAP_ARRAY(char, range_string, string_length, mtLogging);
+ guarantee(range_string != NULL, "create_range_str string should not be NULL");
+ }
+ } while (size_needed < 0);
+
+ return range_string;
+}
+
+const char* Flag::get_int_default_range_str() {
+ return create_range_str("[ " INT32_FORMAT_W(-25) " ... " INT32_FORMAT_W(25) " ]", INT_MIN, INT_MAX);
+}
+
+const char* Flag::get_uint_default_range_str() {
+ return create_range_str("[ " UINT32_FORMAT_W(-25) " ... " UINT32_FORMAT_W(25) " ]", 0, UINT_MAX);
+}
+
+const char* Flag::get_intx_default_range_str() {
+ return create_range_str("[ " INTX_FORMAT_W(-25) " ... " INTX_FORMAT_W(25) " ]", min_intx, max_intx);
+}
+
+const char* Flag::get_uintx_default_range_str() {
+ return create_range_str("[ " UINTX_FORMAT_W(-25) " ... " UINTX_FORMAT_W(25) " ]", 0, max_uintx);
+}
+
+const char* Flag::get_uint64_t_default_range_str() {
+ return create_range_str("[ " UINT64_FORMAT_W(-25) " ... " UINT64_FORMAT_W(25) " ]", 0, uint64_t(max_juint));
+}
+
+const char* Flag::get_size_t_default_range_str() {
+ return create_range_str("[ " SIZE_FORMAT_W(-25) " ... " SIZE_FORMAT_W(25) " ]", 0, SIZE_MAX);
+}
+
+const char* Flag::get_double_default_range_str() {
+ return create_range_str("[ %-25.3f ... %25.3f ]", DBL_MIN, DBL_MAX);
+}
+
+static bool is_product_build() {
+#ifdef PRODUCT
+ return true;
+#else
+ return false;
+#endif
+}
+
+Flag::Error Flag::check_writable(bool changed) {
+ if (is_constant_in_binary()) {
+ fatal("flag is constant: %s", _name);
+ }
+
+ Flag::Error error = Flag::SUCCESS;
+ if (changed) {
+ CommandLineFlagWriteable* writeable = CommandLineFlagWriteableList::find(_name);
+ if (writeable) {
+ if (writeable->is_writeable() == false) {
+ switch (writeable->type())
+ {
+ case CommandLineFlagWriteable::Once:
+ error = Flag::SET_ONLY_ONCE;
+ jio_fprintf(defaultStream::error_stream(), "Error: %s may not be set more than once\n", _name);
+ break;
+ case CommandLineFlagWriteable::CommandLineOnly:
+ error = Flag::COMMAND_LINE_ONLY;
+ jio_fprintf(defaultStream::error_stream(), "Error: %s may be modified only from commad line\n", _name);
+ break;
+ default:
+ ShouldNotReachHere();
+ break;
+ }
+ }
+ writeable->mark_once();
+ }
+ }
+ return error;
+}
+
+bool Flag::is_bool() const {
+ return strcmp(_type, "bool") == 0;
+}
+
+bool Flag::get_bool() const {
+ return *((bool*) _addr);
+}
+
+Flag::Error Flag::set_bool(bool value) {
+ Flag::Error error = check_writable(value!=get_bool());
+ if (error == Flag::SUCCESS) {
+ *((bool*) _addr) = value;
+ }
+ return error;
+}
+
+bool Flag::is_int() const {
+ return strcmp(_type, "int") == 0;
+}
+
+int Flag::get_int() const {
+ return *((int*) _addr);
+}
+
+Flag::Error Flag::set_int(int value) {
+ Flag::Error error = check_writable(value!=get_int());
+ if (error == Flag::SUCCESS) {
+ *((int*) _addr) = value;
+ }
+ return error;
+}
+
+bool Flag::is_uint() const {
+ return strcmp(_type, "uint") == 0;
+}
+
+uint Flag::get_uint() const {
+ return *((uint*) _addr);
+}
+
+Flag::Error Flag::set_uint(uint value) {
+ Flag::Error error = check_writable(value!=get_uint());
+ if (error == Flag::SUCCESS) {
+ *((uint*) _addr) = value;
+ }
+ return error;
+}
+
+bool Flag::is_intx() const {
+ return strcmp(_type, "intx") == 0;
+}
+
+intx Flag::get_intx() const {
+ return *((intx*) _addr);
+}
+
+Flag::Error Flag::set_intx(intx value) {
+ Flag::Error error = check_writable(value!=get_intx());
+ if (error == Flag::SUCCESS) {
+ *((intx*) _addr) = value;
+ }
+ return error;
+}
+
+bool Flag::is_uintx() const {
+ return strcmp(_type, "uintx") == 0;
+}
+
+uintx Flag::get_uintx() const {
+ return *((uintx*) _addr);
+}
+
+Flag::Error Flag::set_uintx(uintx value) {
+ Flag::Error error = check_writable(value!=get_uintx());
+ if (error == Flag::SUCCESS) {
+ *((uintx*) _addr) = value;
+ }
+ return error;
+}
+
+bool Flag::is_uint64_t() const {
+ return strcmp(_type, "uint64_t") == 0;
+}
+
+uint64_t Flag::get_uint64_t() const {
+ return *((uint64_t*) _addr);
+}
+
+Flag::Error Flag::set_uint64_t(uint64_t value) {
+ Flag::Error error = check_writable(value!=get_uint64_t());
+ if (error == Flag::SUCCESS) {
+ *((uint64_t*) _addr) = value;
+ }
+ return error;
+}
+
+bool Flag::is_size_t() const {
+ return strcmp(_type, "size_t") == 0;
+}
+
+size_t Flag::get_size_t() const {
+ return *((size_t*) _addr);
+}
+
+Flag::Error Flag::set_size_t(size_t value) {
+ Flag::Error error = check_writable(value!=get_size_t());
+ if (error == Flag::SUCCESS) {
+ *((size_t*) _addr) = value;
+ }
+ return error;
+}
+
+bool Flag::is_double() const {
+ return strcmp(_type, "double") == 0;
+}
+
+double Flag::get_double() const {
+ return *((double*) _addr);
+}
+
+Flag::Error Flag::set_double(double value) {
+ Flag::Error error = check_writable(value!=get_double());
+ if (error == Flag::SUCCESS) {
+ *((double*) _addr) = value;
+ }
+ return error;
+}
+
+bool Flag::is_ccstr() const {
+ return strcmp(_type, "ccstr") == 0 || strcmp(_type, "ccstrlist") == 0;
+}
+
+bool Flag::ccstr_accumulates() const {
+ return strcmp(_type, "ccstrlist") == 0;
+}
+
+ccstr Flag::get_ccstr() const {
+ return *((ccstr*) _addr);
+}
+
+Flag::Error Flag::set_ccstr(ccstr value) {
+ Flag::Error error = check_writable(value!=get_ccstr());
+ if (error == Flag::SUCCESS) {
+ *((ccstr*) _addr) = value;
+ }
+ return error;
+}
+
+
+Flag::Flags Flag::get_origin() {
+ return Flags(_flags & VALUE_ORIGIN_MASK);
+}
+
+void Flag::set_origin(Flags origin) {
+ assert((origin & VALUE_ORIGIN_MASK) == origin, "sanity");
+ Flags new_origin = Flags((origin == COMMAND_LINE) ? Flags(origin | ORIG_COMMAND_LINE) : origin);
+ _flags = Flags((_flags & ~VALUE_ORIGIN_MASK) | new_origin);
+}
+
+bool Flag::is_default() {
+ return (get_origin() == DEFAULT);
+}
+
+bool Flag::is_ergonomic() {
+ return (get_origin() == ERGONOMIC);
+}
+
+bool Flag::is_command_line() {
+ return (_flags & ORIG_COMMAND_LINE) != 0;
+}
+
+void Flag::set_command_line() {
+ _flags = Flags(_flags | ORIG_COMMAND_LINE);
+}
+
+bool Flag::is_product() const {
+ return (_flags & KIND_PRODUCT) != 0;
+}
+
+bool Flag::is_manageable() const {
+ return (_flags & KIND_MANAGEABLE) != 0;
+}
+
+bool Flag::is_diagnostic() const {
+ return (_flags & KIND_DIAGNOSTIC) != 0;
+}
+
+bool Flag::is_experimental() const {
+ return (_flags & KIND_EXPERIMENTAL) != 0;
+}
+
+bool Flag::is_notproduct() const {
+ return (_flags & KIND_NOT_PRODUCT) != 0;
+}
+
+bool Flag::is_develop() const {
+ return (_flags & KIND_DEVELOP) != 0;
+}
+
+bool Flag::is_read_write() const {
+ return (_flags & KIND_READ_WRITE) != 0;
+}
+
+bool Flag::is_commercial() const {
+ return (_flags & KIND_COMMERCIAL) != 0;
+}
+
+/**
+ * Returns if this flag is a constant in the binary. Right now this is
+ * true for notproduct and develop flags in product builds.
+ */
+bool Flag::is_constant_in_binary() const {
+#ifdef PRODUCT
+ return is_notproduct() || is_develop();
+#else
+ return false;
+#endif
+}
+
+bool Flag::is_unlocker() const {
+ return strcmp(_name, "UnlockDiagnosticVMOptions") == 0 ||
+ strcmp(_name, "UnlockExperimentalVMOptions") == 0 ||
+ is_unlocker_ext();
+}
+
+bool Flag::is_unlocked() const {
+ if (is_diagnostic()) {
+ return UnlockDiagnosticVMOptions;
+ }
+ if (is_experimental()) {
+ return UnlockExperimentalVMOptions;
+ }
+ return is_unlocked_ext();
+}
+
+void Flag::clear_diagnostic() {
+ assert(is_diagnostic(), "sanity");
+ _flags = Flags(_flags & ~KIND_DIAGNOSTIC);
+ assert(!is_diagnostic(), "sanity");
+}
+
+// Get custom message for this locked flag, or NULL if
+// none is available. Returns message type produced.
+Flag::MsgType Flag::get_locked_message(char* buf, int buflen) const {
+ buf[0] = '\0';
+ if (is_diagnostic() && !is_unlocked()) {
+ jio_snprintf(buf, buflen,
+ "Error: VM option '%s' is diagnostic and must be enabled via -XX:+UnlockDiagnosticVMOptions.\n"
+ "Error: The unlock option must precede '%s'.\n",
+ _name, _name);
+ return Flag::DIAGNOSTIC_FLAG_BUT_LOCKED;
+ }
+ if (is_experimental() && !is_unlocked()) {
+ jio_snprintf(buf, buflen,
+ "Error: VM option '%s' is experimental and must be enabled via -XX:+UnlockExperimentalVMOptions.\n"
+ "Error: The unlock option must precede '%s'.\n",
+ _name, _name);
+ return Flag::EXPERIMENTAL_FLAG_BUT_LOCKED;
+ }
+ if (is_develop() && is_product_build()) {
+ jio_snprintf(buf, buflen, "Error: VM option '%s' is develop and is available only in debug version of VM.\n",
+ _name);
+ return Flag::DEVELOPER_FLAG_BUT_PRODUCT_BUILD;
+ }
+ if (is_notproduct() && is_product_build()) {
+ jio_snprintf(buf, buflen, "Error: VM option '%s' is notproduct and is available only in debug version of VM.\n",
+ _name);
+ return Flag::NOTPRODUCT_FLAG_BUT_PRODUCT_BUILD;
+ }
+ return get_locked_message_ext(buf, buflen);
+}
+
+bool Flag::is_writeable() const {
+ return is_manageable() || (is_product() && is_read_write()) || is_writeable_ext();
+}
+
+// All flags except "manageable" are assumed to be internal flags.
+// Long term, we need to define a mechanism to specify which flags
+// are external/stable and change this function accordingly.
+bool Flag::is_external() const {
+ return is_manageable() || is_external_ext();
+}
+
+// Helper function for Flag::print_on().
+// Fills current line up to requested position.
+// Should the current position already be past the requested position,
+// one separator blank is enforced.
+void fill_to_pos(outputStream* st, unsigned int req_pos) {
+ if ((unsigned int)st->position() < req_pos) {
+ st->fill_to(req_pos); // need to fill with blanks to reach req_pos
+ } else {
+ st->print(" "); // enforce blank separation. Previous field too long.
+ }
+}
+
+void Flag::print_on(outputStream* st, bool withComments, bool printRanges) {
+ // Don't print notproduct and develop flags in a product build.
+ if (is_constant_in_binary()) {
+ return;
+ }
+
+ if (!printRanges) {
+ // The command line options -XX:+PrintFlags* cause this function to be called
+ // for each existing flag to print information pertinent to this flag. The data
+ // is displayed in columnar form, with the following layout:
+ // col1 - data type, right-justified
+ // col2 - name, left-justified
+ // col3 - ' =' double-char, leading space to align with possible '+='
+ // col4 - value left-justified
+ // col5 - kind right-justified
+ // col6 - origin left-justified
+ // col7 - comments left-justified
+ //
+ // The column widths are fixed. They are defined such that, for most cases,
+ // an eye-pleasing tabular output is created.
+ //
+ // Sample output:
+ // bool CMSScavengeBeforeRemark = false {product} {default}
+ // uintx CMSScheduleRemarkEdenPenetration = 50 {product} {default}
+ // size_t CMSScheduleRemarkEdenSizeThreshold = 2097152 {product} {default}
+ // uintx CMSScheduleRemarkSamplingRatio = 5 {product} {default}
+ // double CMSSmallCoalSurplusPercent = 1.050000 {product} {default}
+ // ccstr CompileCommandFile = MyFile.cmd {product} {command line}
+ // ccstrlist CompileOnly = Method1
+ // CompileOnly += Method2 {product} {command line}
+ // | | | | | | |
+ // | | | | | | +-- col7
+ // | | | | | +-- col6
+ // | | | | +-- col5
+ // | | | +-- col4
+ // | | +-- col3
+ // | +-- col2
+ // +-- col1
+
+ const unsigned int col_spacing = 1;
+ const unsigned int col1_pos = 0;
+ const unsigned int col1_width = 9;
+ const unsigned int col2_pos = col1_pos + col1_width + col_spacing;
+ const unsigned int col2_width = 39;
+ const unsigned int col3_pos = col2_pos + col2_width + col_spacing;
+ const unsigned int col3_width = 2;
+ const unsigned int col4_pos = col3_pos + col3_width + col_spacing;
+ const unsigned int col4_width = 30;
+ const unsigned int col5_pos = col4_pos + col4_width + col_spacing;
+ const unsigned int col5_width = 20;
+ const unsigned int col6_pos = col5_pos + col5_width + col_spacing;
+ const unsigned int col6_width = 15;
+ const unsigned int col7_pos = col6_pos + col6_width + col_spacing;
+ const unsigned int col7_width = 1;
+
+ st->fill_to(col1_pos);
+ st->print("%*s", col1_width, _type); // right-justified, therefore width is required.
+
+ fill_to_pos(st, col2_pos);
+ st->print("%s", _name);
+
+ fill_to_pos(st, col3_pos);
+ st->print(" ="); // use " =" for proper alignment with multiline ccstr output.
+
+ fill_to_pos(st, col4_pos);
+ if (is_bool()) {
+ st->print("%s", get_bool() ? "true" : "false");
+ } else if (is_int()) {
+ st->print("%d", get_int());
+ } else if (is_uint()) {
+ st->print("%u", get_uint());
+ } else if (is_intx()) {
+ st->print(INTX_FORMAT, get_intx());
+ } else if (is_uintx()) {
+ st->print(UINTX_FORMAT, get_uintx());
+ } else if (is_uint64_t()) {
+ st->print(UINT64_FORMAT, get_uint64_t());
+ } else if (is_size_t()) {
+ st->print(SIZE_FORMAT, get_size_t());
+ } else if (is_double()) {
+ st->print("%f", get_double());
+ } else if (is_ccstr()) {
+ // Honor <newline> characters in ccstr: print multiple lines.
+ const char* cp = get_ccstr();
+ if (cp != NULL) {
+ const char* eol;
+ while ((eol = strchr(cp, '\n')) != NULL) {
+ size_t llen = pointer_delta(eol, cp, sizeof(char));
+ st->print("%.*s", (int)llen, cp);
+ st->cr();
+ cp = eol+1;
+ fill_to_pos(st, col2_pos);
+ st->print("%s", _name);
+ fill_to_pos(st, col3_pos);
+ st->print("+=");
+ fill_to_pos(st, col4_pos);
+ }
+ st->print("%s", cp);
+ }
+ } else {
+ st->print("unhandled type %s", _type);
+ st->cr();
+ return;
+ }
+
+ fill_to_pos(st, col5_pos);
+ print_kind(st, col5_width);
+
+ fill_to_pos(st, col6_pos);
+ print_origin(st, col6_width);
+
+#ifndef PRODUCT
+ if (withComments) {
+ fill_to_pos(st, col7_pos);
+ st->print("%s", _doc);
+ }
+#endif
+ st->cr();
+ } else if (!is_bool() && !is_ccstr()) {
+ // The command line options -XX:+PrintFlags* cause this function to be called
+ // for each existing flag to print information pertinent to this flag. The data
+ // is displayed in columnar form, with the following layout:
+ // col1 - data type, right-justified
+ // col2 - name, left-justified
+ // col4 - range [ min ... max]
+ // col5 - kind right-justified
+ // col6 - origin left-justified
+ // col7 - comments left-justified
+ //
+ // The column widths are fixed. They are defined such that, for most cases,
+ // an eye-pleasing tabular output is created.
+ //
+ // Sample output:
+ // intx MinPassesBeforeFlush [ 0 ... 9223372036854775807 ] {diagnostic} {default}
+ // uintx MinRAMFraction [ 1 ... 18446744073709551615 ] {product} {default}
+ // double MinRAMPercentage [ 0.000 ... 100.000 ] {product} {default}
+ // uintx MinSurvivorRatio [ 3 ... 18446744073709551615 ] {product} {default}
+ // size_t MinTLABSize [ 1 ... 9223372036854775807 ] {product} {default}
+ // intx MonitorBound [ 0 ... 2147483647 ] {product} {default}
+ // | | | | | |
+ // | | | | | +-- col7
+ // | | | | +-- col6
+ // | | | +-- col5
+ // | | +-- col4
+ // | +-- col2
+ // +-- col1
+
+ const unsigned int col_spacing = 1;
+ const unsigned int col1_pos = 0;
+ const unsigned int col1_width = 9;
+ const unsigned int col2_pos = col1_pos + col1_width + col_spacing;
+ const unsigned int col2_width = 49;
+ const unsigned int col3_pos = col2_pos + col2_width + col_spacing;
+ const unsigned int col3_width = 0;
+ const unsigned int col4_pos = col3_pos + col3_width + col_spacing;
+ const unsigned int col4_width = 60;
+ const unsigned int col5_pos = col4_pos + col4_width + col_spacing;
+ const unsigned int col5_width = 35;
+ const unsigned int col6_pos = col5_pos + col5_width + col_spacing;
+ const unsigned int col6_width = 15;
+ const unsigned int col7_pos = col6_pos + col6_width + col_spacing;
+ const unsigned int col7_width = 1;
+
+ st->fill_to(col1_pos);
+ st->print("%*s", col1_width, _type); // right-justified, therefore width is required.
+
+ fill_to_pos(st, col2_pos);
+ st->print("%s", _name);
+
+ fill_to_pos(st, col4_pos);
+ RangeStrFunc func = NULL;
+ if (is_int()) {
+ func = Flag::get_int_default_range_str;
+ } else if (is_uint()) {
+ func = Flag::get_uint_default_range_str;
+ } else if (is_intx()) {
+ func = Flag::get_intx_default_range_str;
+ } else if (is_uintx()) {
+ func = Flag::get_uintx_default_range_str;
+ } else if (is_uint64_t()) {
+ func = Flag::get_uint64_t_default_range_str;
+ } else if (is_size_t()) {
+ func = Flag::get_size_t_default_range_str;
+ } else if (is_double()) {
+ func = Flag::get_double_default_range_str;
+ } else {
+ st->print("unhandled type %s", _type);
+ st->cr();
+ return;
+ }
+ CommandLineFlagRangeList::print(st, _name, func);
+
+ fill_to_pos(st, col5_pos);
+ print_kind(st, col5_width);
+
+ fill_to_pos(st, col6_pos);
+ print_origin(st, col6_width);
+
+#ifndef PRODUCT
+ if (withComments) {
+ fill_to_pos(st, col7_pos);
+ st->print("%s", _doc);
+ }
+#endif
+ st->cr();
+ }
+}
+
+void Flag::print_kind(outputStream* st, unsigned int width) {
+ struct Data {
+ int flag;
+ const char* name;
+ };
+
+ Data data[] = {
+ { KIND_JVMCI, "JVMCI" },
+ { KIND_C1, "C1" },
+ { KIND_C2, "C2" },
+ { KIND_ARCH, "ARCH" },
+ { KIND_PLATFORM_DEPENDENT, "pd" },
+ { KIND_PRODUCT, "product" },
+ { KIND_MANAGEABLE, "manageable" },
+ { KIND_DIAGNOSTIC, "diagnostic" },
+ { KIND_EXPERIMENTAL, "experimental" },
+ { KIND_COMMERCIAL, "commercial" },
+ { KIND_NOT_PRODUCT, "notproduct" },
+ { KIND_DEVELOP, "develop" },
+ { KIND_LP64_PRODUCT, "lp64_product" },
+ { KIND_READ_WRITE, "rw" },
+ { -1, "" }
+ };
+
+ if ((_flags & KIND_MASK) != 0) {
+ bool is_first = true;
+ const size_t buffer_size = 64;
+ size_t buffer_used = 0;
+ char kind[buffer_size];
+
+ jio_snprintf(kind, buffer_size, "{");
+ buffer_used++;
+ for (int i = 0; data[i].flag != -1; i++) {
+ Data d = data[i];
+ if ((_flags & d.flag) != 0) {
+ if (is_first) {
+ is_first = false;
+ } else {
+ assert(buffer_used + 1 < buffer_size, "Too small buffer");
+ jio_snprintf(kind + buffer_used, buffer_size - buffer_used, " ");
+ buffer_used++;
+ }
+ size_t length = strlen(d.name);
+ assert(buffer_used + length < buffer_size, "Too small buffer");
+ jio_snprintf(kind + buffer_used, buffer_size - buffer_used, "%s", d.name);
+ buffer_used += length;
+ }
+ }
+ assert(buffer_used + 2 <= buffer_size, "Too small buffer");
+ jio_snprintf(kind + buffer_used, buffer_size - buffer_used, "}");
+ st->print("%*s", width, kind);
+ }
+}
+
+void Flag::print_origin(outputStream* st, unsigned int width) {
+ int origin = _flags & VALUE_ORIGIN_MASK;
+ st->print("{");
+ switch(origin) {
+ case DEFAULT:
+ st->print("default"); break;
+ case COMMAND_LINE:
+ st->print("command line"); break;
+ case ENVIRON_VAR:
+ st->print("environment"); break;
+ case CONFIG_FILE:
+ st->print("config file"); break;
+ case MANAGEMENT:
+ st->print("management"); break;
+ case ERGONOMIC:
+ if (_flags & ORIG_COMMAND_LINE) {
+ st->print("command line, ");
+ }
+ st->print("ergonomic"); break;
+ case ATTACH_ON_DEMAND:
+ st->print("attach"); break;
+ case INTERNAL:
+ st->print("internal"); break;
+ }
+ st->print("}");
+}
+
+void Flag::print_as_flag(outputStream* st) {
+ if (is_bool()) {
+ st->print("-XX:%s%s", get_bool() ? "+" : "-", _name);
+ } else if (is_int()) {
+ st->print("-XX:%s=%d", _name, get_int());
+ } else if (is_uint()) {
+ st->print("-XX:%s=%u", _name, get_uint());
+ } else if (is_intx()) {
+ st->print("-XX:%s=" INTX_FORMAT, _name, get_intx());
+ } else if (is_uintx()) {
+ st->print("-XX:%s=" UINTX_FORMAT, _name, get_uintx());
+ } else if (is_uint64_t()) {
+ st->print("-XX:%s=" UINT64_FORMAT, _name, get_uint64_t());
+ } else if (is_size_t()) {
+ st->print("-XX:%s=" SIZE_FORMAT, _name, get_size_t());
+ } else if (is_double()) {
+ st->print("-XX:%s=%f", _name, get_double());
+ } else if (is_ccstr()) {
+ st->print("-XX:%s=", _name);
+ const char* cp = get_ccstr();
+ if (cp != NULL) {
+ // Need to turn embedded '\n's back into separate arguments
+ // Not so efficient to print one character at a time,
+ // but the choice is to do the transformation to a buffer
+ // and print that. And this need not be efficient.
+ for (; *cp != '\0'; cp += 1) {
+ switch (*cp) {
+ default:
+ st->print("%c", *cp);
+ break;
+ case '\n':
+ st->print(" -XX:%s=", _name);
+ break;
+ }
+ }
+ }
+ } else {
+ ShouldNotReachHere();
+ }
+}
+
+const char* Flag::flag_error_str(Flag::Error error) {
+ switch (error) {
+ case Flag::MISSING_NAME: return "MISSING_NAME";
+ case Flag::MISSING_VALUE: return "MISSING_VALUE";
+ case Flag::NON_WRITABLE: return "NON_WRITABLE";
+ case Flag::OUT_OF_BOUNDS: return "OUT_OF_BOUNDS";
+ case Flag::VIOLATES_CONSTRAINT: return "VIOLATES_CONSTRAINT";
+ case Flag::INVALID_FLAG: return "INVALID_FLAG";
+ case Flag::ERR_OTHER: return "ERR_OTHER";
+ case Flag::SUCCESS: return "SUCCESS";
+ default: ShouldNotReachHere(); return "NULL";
+ }
+}
+
+// 4991491 do not "optimize out" the was_set false values: omitting them
+// tickles a Microsoft compiler bug causing flagTable to be malformed
+
+#define RUNTIME_PRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_PRODUCT) },
+#define RUNTIME_PD_PRODUCT_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_PRODUCT | Flag::KIND_PLATFORM_DEPENDENT) },
+#define RUNTIME_DIAGNOSTIC_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_DIAGNOSTIC) },
+#define RUNTIME_PD_DIAGNOSTIC_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_DIAGNOSTIC | Flag::KIND_PLATFORM_DEPENDENT) },
+#define RUNTIME_EXPERIMENTAL_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_EXPERIMENTAL) },
+#define RUNTIME_MANAGEABLE_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_MANAGEABLE) },
+#define RUNTIME_PRODUCT_RW_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_PRODUCT | Flag::KIND_READ_WRITE) },
+#define RUNTIME_DEVELOP_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_DEVELOP) },
+#define RUNTIME_PD_DEVELOP_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_DEVELOP | Flag::KIND_PLATFORM_DEPENDENT) },
+#define RUNTIME_NOTPRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_NOT_PRODUCT) },
+
+#define JVMCI_PRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_JVMCI | Flag::KIND_PRODUCT) },
+#define JVMCI_PD_PRODUCT_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_JVMCI | Flag::KIND_PRODUCT | Flag::KIND_PLATFORM_DEPENDENT) },
+#define JVMCI_DIAGNOSTIC_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_JVMCI | Flag::KIND_DIAGNOSTIC) },
+#define JVMCI_PD_DIAGNOSTIC_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_JVMCI | Flag::KIND_DIAGNOSTIC | Flag::KIND_PLATFORM_DEPENDENT) },
+#define JVMCI_EXPERIMENTAL_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_JVMCI | Flag::KIND_EXPERIMENTAL) },
+#define JVMCI_DEVELOP_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_JVMCI | Flag::KIND_DEVELOP) },
+#define JVMCI_PD_DEVELOP_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_JVMCI | Flag::KIND_DEVELOP | Flag::KIND_PLATFORM_DEPENDENT) },
+#define JVMCI_NOTPRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_JVMCI | Flag::KIND_NOT_PRODUCT) },
+
+#ifdef _LP64
+#define RUNTIME_LP64_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_LP64_PRODUCT) },
+#else
+#define RUNTIME_LP64_PRODUCT_FLAG_STRUCT(type, name, value, doc) /* flag is constant */
+#endif // _LP64
+
+#define C1_PRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C1 | Flag::KIND_PRODUCT) },
+#define C1_PD_PRODUCT_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C1 | Flag::KIND_PRODUCT | Flag::KIND_PLATFORM_DEPENDENT) },
+#define C1_DIAGNOSTIC_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C1 | Flag::KIND_DIAGNOSTIC) },
+#define C1_PD_DIAGNOSTIC_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C1 | Flag::KIND_DIAGNOSTIC | Flag::KIND_PLATFORM_DEPENDENT) },
+#define C1_DEVELOP_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C1 | Flag::KIND_DEVELOP) },
+#define C1_PD_DEVELOP_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C1 | Flag::KIND_DEVELOP | Flag::KIND_PLATFORM_DEPENDENT) },
+#define C1_NOTPRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C1 | Flag::KIND_NOT_PRODUCT) },
+
+#define C2_PRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C2 | Flag::KIND_PRODUCT) },
+#define C2_PD_PRODUCT_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C2 | Flag::KIND_PRODUCT | Flag::KIND_PLATFORM_DEPENDENT) },
+#define C2_DIAGNOSTIC_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C2 | Flag::KIND_DIAGNOSTIC) },
+#define C2_PD_DIAGNOSTIC_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C2 | Flag::KIND_DIAGNOSTIC | Flag::KIND_PLATFORM_DEPENDENT) },
+#define C2_EXPERIMENTAL_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C2 | Flag::KIND_EXPERIMENTAL) },
+#define C2_DEVELOP_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C2 | Flag::KIND_DEVELOP) },
+#define C2_PD_DEVELOP_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C2 | Flag::KIND_DEVELOP | Flag::KIND_PLATFORM_DEPENDENT) },
+#define C2_NOTPRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C2 | Flag::KIND_NOT_PRODUCT) },
+
+#define ARCH_PRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_ARCH | Flag::KIND_PRODUCT) },
+#define ARCH_DIAGNOSTIC_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_ARCH | Flag::KIND_DIAGNOSTIC) },
+#define ARCH_EXPERIMENTAL_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_ARCH | Flag::KIND_EXPERIMENTAL) },
+#define ARCH_DEVELOP_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_ARCH | Flag::KIND_DEVELOP) },
+#define ARCH_NOTPRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_ARCH | Flag::KIND_NOT_PRODUCT) },
+
+static Flag flagTable[] = {
+ VM_FLAGS(RUNTIME_DEVELOP_FLAG_STRUCT, \
+ RUNTIME_PD_DEVELOP_FLAG_STRUCT, \
+ RUNTIME_PRODUCT_FLAG_STRUCT, \
+ RUNTIME_PD_PRODUCT_FLAG_STRUCT, \
+ RUNTIME_DIAGNOSTIC_FLAG_STRUCT, \
+ RUNTIME_PD_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, \
+ IGNORE_RANGE, \
+ IGNORE_CONSTRAINT, \
+ IGNORE_WRITEABLE)
+
+ 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_PD_DIAGNOSTIC_FLAG_STRUCT, \
+ RUNTIME_NOTPRODUCT_FLAG_STRUCT, \
+ IGNORE_RANGE, \
+ IGNORE_CONSTRAINT, \
+ IGNORE_WRITEABLE)
+#if INCLUDE_JVMCI
+ JVMCI_FLAGS(JVMCI_DEVELOP_FLAG_STRUCT, \
+ JVMCI_PD_DEVELOP_FLAG_STRUCT, \
+ JVMCI_PRODUCT_FLAG_STRUCT, \
+ JVMCI_PD_PRODUCT_FLAG_STRUCT, \
+ JVMCI_DIAGNOSTIC_FLAG_STRUCT, \
+ JVMCI_PD_DIAGNOSTIC_FLAG_STRUCT, \
+ JVMCI_EXPERIMENTAL_FLAG_STRUCT, \
+ JVMCI_NOTPRODUCT_FLAG_STRUCT, \
+ IGNORE_RANGE, \
+ IGNORE_CONSTRAINT, \
+ IGNORE_WRITEABLE)
+#endif // INCLUDE_JVMCI
+#ifdef COMPILER1
+ C1_FLAGS(C1_DEVELOP_FLAG_STRUCT, \
+ C1_PD_DEVELOP_FLAG_STRUCT, \
+ C1_PRODUCT_FLAG_STRUCT, \
+ C1_PD_PRODUCT_FLAG_STRUCT, \
+ C1_DIAGNOSTIC_FLAG_STRUCT, \
+ C1_PD_DIAGNOSTIC_FLAG_STRUCT, \
+ C1_NOTPRODUCT_FLAG_STRUCT, \
+ IGNORE_RANGE, \
+ IGNORE_CONSTRAINT, \
+ IGNORE_WRITEABLE)
+#endif // COMPILER1
+#ifdef COMPILER2
+ C2_FLAGS(C2_DEVELOP_FLAG_STRUCT, \
+ C2_PD_DEVELOP_FLAG_STRUCT, \
+ C2_PRODUCT_FLAG_STRUCT, \
+ C2_PD_PRODUCT_FLAG_STRUCT, \
+ C2_DIAGNOSTIC_FLAG_STRUCT, \
+ C2_PD_DIAGNOSTIC_FLAG_STRUCT, \
+ C2_EXPERIMENTAL_FLAG_STRUCT, \
+ C2_NOTPRODUCT_FLAG_STRUCT, \
+ IGNORE_RANGE, \
+ IGNORE_CONSTRAINT, \
+ IGNORE_WRITEABLE)
+#endif // COMPILER2
+ ARCH_FLAGS(ARCH_DEVELOP_FLAG_STRUCT, \
+ ARCH_PRODUCT_FLAG_STRUCT, \
+ ARCH_DIAGNOSTIC_FLAG_STRUCT, \
+ ARCH_EXPERIMENTAL_FLAG_STRUCT, \
+ ARCH_NOTPRODUCT_FLAG_STRUCT, \
+ IGNORE_RANGE, \
+ IGNORE_CONSTRAINT, \
+ IGNORE_WRITEABLE)
+ FLAGTABLE_EXT
+ {0, NULL, NULL}
+};
+
+Flag* Flag::flags = flagTable;
+size_t Flag::numFlags = (sizeof(flagTable) / sizeof(Flag));
+
+inline bool str_equal(const char* s, size_t s_len, const char* q, size_t q_len) {
+ if (s_len != q_len) return false;
+ return memcmp(s, q, q_len) == 0;
+}
+
+// Search the flag table for a named flag
+Flag* Flag::find_flag(const char* name, size_t length, bool allow_locked, bool return_flag) {
+ for (Flag* current = &flagTable[0]; current->_name != NULL; current++) {
+ if (str_equal(current->_name, current->get_name_length(), name, length)) {
+ // Found a matching entry.
+ // Don't report notproduct and develop flags in product builds.
+ if (current->is_constant_in_binary()) {
+ return (return_flag ? current : NULL);
+ }
+ // Report locked flags only if allowed.
+ if (!(current->is_unlocked() || current->is_unlocker())) {
+ if (!allow_locked) {
+ // disable use of locked flags, e.g. diagnostic, experimental,
+ // commercial... until they are explicitly unlocked
+ return NULL;
+ }
+ }
+ return current;
+ }
+ }
+ // Flag name is not in the flag table
+ return NULL;
+}
+
+// Get or compute the flag name length
+size_t Flag::get_name_length() {
+ if (_name_len == 0) {
+ _name_len = strlen(_name);
+ }
+ return _name_len;
+}
+
+Flag* Flag::fuzzy_match(const char* name, size_t length, bool allow_locked) {
+ float VMOptionsFuzzyMatchSimilarity = 0.7f;
+ Flag* match = NULL;
+ float score;
+ float max_score = -1;
+
+ for (Flag* current = &flagTable[0]; current->_name != NULL; current++) {
+ score = StringUtils::similarity(current->_name, strlen(current->_name), name, length);
+ if (score > max_score) {
+ max_score = score;
+ match = current;
+ }
+ }
+
+ if (!(match->is_unlocked() || match->is_unlocker())) {
+ if (!allow_locked) {
+ return NULL;
+ }
+ }
+
+ if (max_score < VMOptionsFuzzyMatchSimilarity) {
+ return NULL;
+ }
+
+ return match;
+}
+
+// Returns the address of the index'th element
+static Flag* address_of_flag(CommandLineFlagWithType flag) {
+ assert((size_t)flag < Flag::numFlags, "bad command line flag index");
+ return &Flag::flags[flag];
+}
+
+bool CommandLineFlagsEx::is_default(CommandLineFlag flag) {
+ assert((size_t)flag < Flag::numFlags, "bad command line flag index");
+ Flag* f = &Flag::flags[flag];
+ return f->is_default();
+}
+
+bool CommandLineFlagsEx::is_ergo(CommandLineFlag flag) {
+ assert((size_t)flag < Flag::numFlags, "bad command line flag index");
+ Flag* f = &Flag::flags[flag];
+ return f->is_ergonomic();
+}
+
+bool CommandLineFlagsEx::is_cmdline(CommandLineFlag flag) {
+ assert((size_t)flag < Flag::numFlags, "bad command line flag index");
+ Flag* f = &Flag::flags[flag];
+ return f->is_command_line();
+}
+
+bool CommandLineFlags::wasSetOnCmdline(const char* name, bool* value) {
+ Flag* result = Flag::find_flag((char*)name, strlen(name));
+ if (result == NULL) return false;
+ *value = result->is_command_line();
+ return true;
+}
+
+void CommandLineFlagsEx::setOnCmdLine(CommandLineFlagWithType flag) {
+ Flag* faddr = address_of_flag(flag);
+ assert(faddr != NULL, "Unknown flag");
+ faddr->set_command_line();
+}
+
+template<class E, class T>
+static void trace_flag_changed(const char* name, const T old_value, const T new_value, const Flag::Flags origin) {
+ E e;
+ e.set_name(name);
+ e.set_oldValue(old_value);
+ e.set_newValue(new_value);
+ e.set_origin(origin);
+ e.commit();
+}
+
+static Flag::Error apply_constraint_and_check_range_bool(const char* name, bool new_value, bool verbose) {
+ Flag::Error status = Flag::SUCCESS;
+ CommandLineFlagConstraint* constraint = CommandLineFlagConstraintList::find_if_needs_check(name);
+ if (constraint != NULL) {
+ status = constraint->apply_bool(new_value, verbose);
+ }
+ return status;
+}
+
+Flag::Error CommandLineFlags::boolAt(const char* name, size_t len, bool* value, bool allow_locked, bool return_flag) {
+ Flag* result = Flag::find_flag(name, len, allow_locked, return_flag);
+ if (result == NULL) return Flag::INVALID_FLAG;
+ if (!result->is_bool()) return Flag::WRONG_FORMAT;
+ *value = result->get_bool();
+ return Flag::SUCCESS;
+}
+
+Flag::Error CommandLineFlags::boolAtPut(Flag* flag, bool* value, Flag::Flags origin) {
+ const char* name;
+ if (flag == NULL) return Flag::INVALID_FLAG;
+ if (!flag->is_bool()) return Flag::WRONG_FORMAT;
+ name = flag->_name;
+ Flag::Error check = apply_constraint_and_check_range_bool(name, *value, !CommandLineFlagConstraintList::validated_after_ergo());
+ if (check != Flag::SUCCESS) return check;
+ bool old_value = flag->get_bool();
+ trace_flag_changed<EventBooleanFlagChanged, bool>(name, old_value, *value, origin);
+ check = flag->set_bool(*value);
+ *value = old_value;
+ flag->set_origin(origin);
+ return check;
+}
+
+Flag::Error CommandLineFlags::boolAtPut(const char* name, size_t len, bool* value, Flag::Flags origin) {
+ Flag* result = Flag::find_flag(name, len);
+ return boolAtPut(result, value, origin);
+}
+
+Flag::Error CommandLineFlagsEx::boolAtPut(CommandLineFlagWithType flag, bool value, Flag::Flags origin) {
+ Flag* faddr = address_of_flag(flag);
+ guarantee(faddr != NULL && faddr->is_bool(), "wrong flag type");
+ return CommandLineFlags::boolAtPut(faddr, &value, origin);
+}
+
+static Flag::Error apply_constraint_and_check_range_int(const char* name, int new_value, bool verbose) {
+ Flag::Error status = Flag::SUCCESS;
+ CommandLineFlagRange* range = CommandLineFlagRangeList::find(name);
+ if (range != NULL) {
+ status = range->check_int(new_value, verbose);
+ }
+ if (status == Flag::SUCCESS) {
+ CommandLineFlagConstraint* constraint = CommandLineFlagConstraintList::find_if_needs_check(name);
+ if (constraint != NULL) {
+ status = constraint->apply_int(new_value, verbose);
+ }
+ }
+ return status;
+}
+
+Flag::Error CommandLineFlags::intAt(const char* name, size_t len, int* value, bool allow_locked, bool return_flag) {
+ Flag* result = Flag::find_flag(name, len, allow_locked, return_flag);
+ if (result == NULL) return Flag::INVALID_FLAG;
+ if (!result->is_int()) return Flag::WRONG_FORMAT;
+ *value = result->get_int();
+ return Flag::SUCCESS;
+}
+
+Flag::Error CommandLineFlags::intAtPut(Flag* flag, int* value, Flag::Flags origin) {
+ const char* name;
+ if (flag == NULL) return Flag::INVALID_FLAG;
+ if (!flag->is_int()) return Flag::WRONG_FORMAT;
+ name = flag->_name;
+ Flag::Error check = apply_constraint_and_check_range_int(name, *value, !CommandLineFlagConstraintList::validated_after_ergo());
+ if (check != Flag::SUCCESS) return check;
+ int old_value = flag->get_int();
+ trace_flag_changed<EventIntFlagChanged, s4>(name, old_value, *value, origin);
+ check = flag->set_int(*value);
+ *value = old_value;
+ flag->set_origin(origin);
+ return check;
+}
+
+Flag::Error CommandLineFlags::intAtPut(const char* name, size_t len, int* value, Flag::Flags origin) {
+ Flag* result = Flag::find_flag(name, len);
+ return intAtPut(result, value, origin);
+}
+
+Flag::Error CommandLineFlagsEx::intAtPut(CommandLineFlagWithType flag, int value, Flag::Flags origin) {
+ Flag* faddr = address_of_flag(flag);
+ guarantee(faddr != NULL && faddr->is_int(), "wrong flag type");
+ return CommandLineFlags::intAtPut(faddr, &value, origin);
+}
+
+static Flag::Error apply_constraint_and_check_range_uint(const char* name, uint new_value, bool verbose) {
+ Flag::Error status = Flag::SUCCESS;
+ CommandLineFlagRange* range = CommandLineFlagRangeList::find(name);
+ if (range != NULL) {
+ status = range->check_uint(new_value, verbose);
+ }
+ if (status == Flag::SUCCESS) {
+ CommandLineFlagConstraint* constraint = CommandLineFlagConstraintList::find_if_needs_check(name);
+ if (constraint != NULL) {
+ status = constraint->apply_uint(new_value, verbose);
+ }
+ }
+ return status;
+}
+
+Flag::Error CommandLineFlags::uintAt(const char* name, size_t len, uint* value, bool allow_locked, bool return_flag) {
+ Flag* result = Flag::find_flag(name, len, allow_locked, return_flag);
+ if (result == NULL) return Flag::INVALID_FLAG;
+ if (!result->is_uint()) return Flag::WRONG_FORMAT;
+ *value = result->get_uint();
+ return Flag::SUCCESS;
+}
+
+Flag::Error CommandLineFlags::uintAtPut(Flag* flag, uint* value, Flag::Flags origin) {
+ const char* name;
+ if (flag == NULL) return Flag::INVALID_FLAG;
+ if (!flag->is_uint()) return Flag::WRONG_FORMAT;
+ name = flag->_name;
+ Flag::Error check = apply_constraint_and_check_range_uint(name, *value, !CommandLineFlagConstraintList::validated_after_ergo());
+ if (check != Flag::SUCCESS) return check;
+ uint old_value = flag->get_uint();
+ trace_flag_changed<EventUnsignedIntFlagChanged, u4>(name, old_value, *value, origin);
+ check = flag->set_uint(*value);
+ *value = old_value;
+ flag->set_origin(origin);
+ return check;
+}
+
+Flag::Error CommandLineFlags::uintAtPut(const char* name, size_t len, uint* value, Flag::Flags origin) {
+ Flag* result = Flag::find_flag(name, len);
+ return uintAtPut(result, value, origin);
+}
+
+Flag::Error CommandLineFlagsEx::uintAtPut(CommandLineFlagWithType flag, uint value, Flag::Flags origin) {
+ Flag* faddr = address_of_flag(flag);
+ guarantee(faddr != NULL && faddr->is_uint(), "wrong flag type");
+ return CommandLineFlags::uintAtPut(faddr, &value, origin);
+}
+
+Flag::Error CommandLineFlags::intxAt(const char* name, size_t len, intx* value, bool allow_locked, bool return_flag) {
+ Flag* result = Flag::find_flag(name, len, allow_locked, return_flag);
+ if (result == NULL) return Flag::INVALID_FLAG;
+ if (!result->is_intx()) return Flag::WRONG_FORMAT;
+ *value = result->get_intx();
+ return Flag::SUCCESS;
+}
+
+static Flag::Error apply_constraint_and_check_range_intx(const char* name, intx new_value, bool verbose) {
+ Flag::Error status = Flag::SUCCESS;
+ CommandLineFlagRange* range = CommandLineFlagRangeList::find(name);
+ if (range != NULL) {
+ status = range->check_intx(new_value, verbose);
+ }
+ if (status == Flag::SUCCESS) {
+ CommandLineFlagConstraint* constraint = CommandLineFlagConstraintList::find_if_needs_check(name);
+ if (constraint != NULL) {
+ status = constraint->apply_intx(new_value, verbose);
+ }
+ }
+ return status;
+}
+
+Flag::Error CommandLineFlags::intxAtPut(Flag* flag, intx* value, Flag::Flags origin) {
+ const char* name;
+ if (flag == NULL) return Flag::INVALID_FLAG;
+ if (!flag->is_intx()) return Flag::WRONG_FORMAT;
+ name = flag->_name;
+ Flag::Error check = apply_constraint_and_check_range_intx(name, *value, !CommandLineFlagConstraintList::validated_after_ergo());
+ if (check != Flag::SUCCESS) return check;
+ intx old_value = flag->get_intx();
+ trace_flag_changed<EventLongFlagChanged, intx>(name, old_value, *value, origin);
+ check = flag->set_intx(*value);
+ *value = old_value;
+ flag->set_origin(origin);
+ return check;
+}
+
+Flag::Error CommandLineFlags::intxAtPut(const char* name, size_t len, intx* value, Flag::Flags origin) {
+ Flag* result = Flag::find_flag(name, len);
+ return intxAtPut(result, value, origin);
+}
+
+Flag::Error CommandLineFlagsEx::intxAtPut(CommandLineFlagWithType flag, intx value, Flag::Flags origin) {
+ Flag* faddr = address_of_flag(flag);
+ guarantee(faddr != NULL && faddr->is_intx(), "wrong flag type");
+ return CommandLineFlags::intxAtPut(faddr, &value, origin);
+}
+
+Flag::Error CommandLineFlags::uintxAt(const char* name, size_t len, uintx* value, bool allow_locked, bool return_flag) {
+ Flag* result = Flag::find_flag(name, len, allow_locked, return_flag);
+ if (result == NULL) return Flag::INVALID_FLAG;
+ if (!result->is_uintx()) return Flag::WRONG_FORMAT;
+ *value = result->get_uintx();
+ return Flag::SUCCESS;
+}
+
+static Flag::Error apply_constraint_and_check_range_uintx(const char* name, uintx new_value, bool verbose) {
+ Flag::Error status = Flag::SUCCESS;
+ CommandLineFlagRange* range = CommandLineFlagRangeList::find(name);
+ if (range != NULL) {
+ status = range->check_uintx(new_value, verbose);
+ }
+ if (status == Flag::SUCCESS) {
+ CommandLineFlagConstraint* constraint = CommandLineFlagConstraintList::find_if_needs_check(name);
+ if (constraint != NULL) {
+ status = constraint->apply_uintx(new_value, verbose);
+ }
+ }
+ return status;
+}
+
+Flag::Error CommandLineFlags::uintxAtPut(Flag* flag, uintx* value, Flag::Flags origin) {
+ const char* name;
+ if (flag == NULL) return Flag::INVALID_FLAG;
+ if (!flag->is_uintx()) return Flag::WRONG_FORMAT;
+ name = flag->_name;
+ Flag::Error check = apply_constraint_and_check_range_uintx(name, *value, !CommandLineFlagConstraintList::validated_after_ergo());
+ if (check != Flag::SUCCESS) return check;
+ uintx old_value = flag->get_uintx();
+ trace_flag_changed<EventUnsignedLongFlagChanged, u8>(name, old_value, *value, origin);
+ check = flag->set_uintx(*value);
+ *value = old_value;
+ flag->set_origin(origin);
+ return check;
+}
+
+Flag::Error CommandLineFlags::uintxAtPut(const char* name, size_t len, uintx* value, Flag::Flags origin) {
+ Flag* result = Flag::find_flag(name, len);
+ return uintxAtPut(result, value, origin);
+}
+
+Flag::Error CommandLineFlagsEx::uintxAtPut(CommandLineFlagWithType flag, uintx value, Flag::Flags origin) {
+ Flag* faddr = address_of_flag(flag);
+ guarantee(faddr != NULL && faddr->is_uintx(), "wrong flag type");
+ return CommandLineFlags::uintxAtPut(faddr, &value, origin);
+}
+
+Flag::Error CommandLineFlags::uint64_tAt(const char* name, size_t len, uint64_t* value, bool allow_locked, bool return_flag) {
+ Flag* result = Flag::find_flag(name, len, allow_locked, return_flag);
+ if (result == NULL) return Flag::INVALID_FLAG;
+ if (!result->is_uint64_t()) return Flag::WRONG_FORMAT;
+ *value = result->get_uint64_t();
+ return Flag::SUCCESS;
+}
+
+static Flag::Error apply_constraint_and_check_range_uint64_t(const char* name, uint64_t new_value, bool verbose) {
+ Flag::Error status = Flag::SUCCESS;
+ CommandLineFlagRange* range = CommandLineFlagRangeList::find(name);
+ if (range != NULL) {
+ status = range->check_uint64_t(new_value, verbose);
+ }
+ if (status == Flag::SUCCESS) {
+ CommandLineFlagConstraint* constraint = CommandLineFlagConstraintList::find_if_needs_check(name);
+ if (constraint != NULL) {
+ status = constraint->apply_uint64_t(new_value, verbose);
+ }
+ }
+ return status;
+}
+
+Flag::Error CommandLineFlags::uint64_tAtPut(Flag* flag, uint64_t* value, Flag::Flags origin) {
+ const char* name;
+ if (flag == NULL) return Flag::INVALID_FLAG;
+ if (!flag->is_uint64_t()) return Flag::WRONG_FORMAT;
+ name = flag->_name;
+ Flag::Error check = apply_constraint_and_check_range_uint64_t(name, *value, !CommandLineFlagConstraintList::validated_after_ergo());
+ if (check != Flag::SUCCESS) return check;
+ uint64_t old_value = flag->get_uint64_t();
+ trace_flag_changed<EventUnsignedLongFlagChanged, u8>(name, old_value, *value, origin);
+ check = flag->set_uint64_t(*value);
+ *value = old_value;
+ flag->set_origin(origin);
+ return check;
+}
+
+Flag::Error CommandLineFlags::uint64_tAtPut(const char* name, size_t len, uint64_t* value, Flag::Flags origin) {
+ Flag* result = Flag::find_flag(name, len);
+ return uint64_tAtPut(result, value, origin);
+}
+
+Flag::Error CommandLineFlagsEx::uint64_tAtPut(CommandLineFlagWithType flag, uint64_t value, Flag::Flags origin) {
+ Flag* faddr = address_of_flag(flag);
+ guarantee(faddr != NULL && faddr->is_uint64_t(), "wrong flag type");
+ return CommandLineFlags::uint64_tAtPut(faddr, &value, origin);
+}
+
+Flag::Error CommandLineFlags::size_tAt(const char* name, size_t len, size_t* value, bool allow_locked, bool return_flag) {
+ Flag* result = Flag::find_flag(name, len, allow_locked, return_flag);
+ if (result == NULL) return Flag::INVALID_FLAG;
+ if (!result->is_size_t()) return Flag::WRONG_FORMAT;
+ *value = result->get_size_t();
+ return Flag::SUCCESS;
+}
+
+static Flag::Error apply_constraint_and_check_range_size_t(const char* name, size_t new_value, bool verbose) {
+ Flag::Error status = Flag::SUCCESS;
+ CommandLineFlagRange* range = CommandLineFlagRangeList::find(name);
+ if (range != NULL) {
+ status = range->check_size_t(new_value, verbose);
+ }
+ if (status == Flag::SUCCESS) {
+ CommandLineFlagConstraint* constraint = CommandLineFlagConstraintList::find_if_needs_check(name);
+ if (constraint != NULL) {
+ status = constraint->apply_size_t(new_value, verbose);
+ }
+ }
+ return status;
+}
+
+
+Flag::Error CommandLineFlags::size_tAtPut(Flag* flag, size_t* value, Flag::Flags origin) {
+ const char* name;
+ if (flag == NULL) return Flag::INVALID_FLAG;
+ if (!flag->is_size_t()) return Flag::WRONG_FORMAT;
+ name = flag->_name;
+ Flag::Error check = apply_constraint_and_check_range_size_t(name, *value, !CommandLineFlagConstraintList::validated_after_ergo());
+ if (check != Flag::SUCCESS) return check;
+ size_t old_value = flag->get_size_t();
+ trace_flag_changed<EventUnsignedLongFlagChanged, u8>(name, old_value, *value, origin);
+ check = flag->set_size_t(*value);
+ *value = old_value;
+ flag->set_origin(origin);
+ return check;
+}
+
+Flag::Error CommandLineFlags::size_tAtPut(const char* name, size_t len, size_t* value, Flag::Flags origin) {
+ Flag* result = Flag::find_flag(name, len);
+ return size_tAtPut(result, value, origin);
+}
+
+Flag::Error CommandLineFlagsEx::size_tAtPut(CommandLineFlagWithType flag, size_t value, Flag::Flags origin) {
+ Flag* faddr = address_of_flag(flag);
+ guarantee(faddr != NULL && faddr->is_size_t(), "wrong flag type");
+ return CommandLineFlags::size_tAtPut(faddr, &value, origin);
+}
+
+Flag::Error CommandLineFlags::doubleAt(const char* name, size_t len, double* value, bool allow_locked, bool return_flag) {
+ Flag* result = Flag::find_flag(name, len, allow_locked, return_flag);
+ if (result == NULL) return Flag::INVALID_FLAG;
+ if (!result->is_double()) return Flag::WRONG_FORMAT;
+ *value = result->get_double();
+ return Flag::SUCCESS;
+}
+
+static Flag::Error apply_constraint_and_check_range_double(const char* name, double new_value, bool verbose) {
+ Flag::Error status = Flag::SUCCESS;
+ CommandLineFlagRange* range = CommandLineFlagRangeList::find(name);
+ if (range != NULL) {
+ status = range->check_double(new_value, verbose);
+ }
+ if (status == Flag::SUCCESS) {
+ CommandLineFlagConstraint* constraint = CommandLineFlagConstraintList::find_if_needs_check(name);
+ if (constraint != NULL) {
+ status = constraint->apply_double(new_value, verbose);
+ }
+ }
+ return status;
+}
+
+Flag::Error CommandLineFlags::doubleAtPut(Flag* flag, double* value, Flag::Flags origin) {
+ const char* name;
+ if (flag == NULL) return Flag::INVALID_FLAG;
+ if (!flag->is_double()) return Flag::WRONG_FORMAT;
+ name = flag->_name;
+ Flag::Error check = apply_constraint_and_check_range_double(name, *value, !CommandLineFlagConstraintList::validated_after_ergo());
+ if (check != Flag::SUCCESS) return check;
+ double old_value = flag->get_double();
+ trace_flag_changed<EventDoubleFlagChanged, double>(name, old_value, *value, origin);
+ check = flag->set_double(*value);
+ *value = old_value;
+ flag->set_origin(origin);
+ return check;
+}
+
+Flag::Error CommandLineFlags::doubleAtPut(const char* name, size_t len, double* value, Flag::Flags origin) {
+ Flag* result = Flag::find_flag(name, len);
+ return doubleAtPut(result, value, origin);
+}
+
+Flag::Error CommandLineFlagsEx::doubleAtPut(CommandLineFlagWithType flag, double value, Flag::Flags origin) {
+ Flag* faddr = address_of_flag(flag);
+ guarantee(faddr != NULL && faddr->is_double(), "wrong flag type");
+ return CommandLineFlags::doubleAtPut(faddr, &value, origin);
+}
+
+Flag::Error CommandLineFlags::ccstrAt(const char* name, size_t len, ccstr* value, bool allow_locked, bool return_flag) {
+ Flag* result = Flag::find_flag(name, len, allow_locked, return_flag);
+ if (result == NULL) return Flag::INVALID_FLAG;
+ if (!result->is_ccstr()) return Flag::WRONG_FORMAT;
+ *value = result->get_ccstr();
+ return Flag::SUCCESS;
+}
+
+Flag::Error CommandLineFlags::ccstrAtPut(const char* name, size_t len, ccstr* value, Flag::Flags origin) {
+ Flag* result = Flag::find_flag(name, len);
+ if (result == NULL) return Flag::INVALID_FLAG;
+ if (!result->is_ccstr()) return Flag::WRONG_FORMAT;
+ ccstr old_value = result->get_ccstr();
+ trace_flag_changed<EventStringFlagChanged, const char*>(name, old_value, *value, origin);
+ char* new_value = NULL;
+ if (*value != NULL) {
+ new_value = os::strdup_check_oom(*value);
+ }
+ Flag::Error check = result->set_ccstr(new_value);
+ if (result->is_default() && old_value != NULL) {
+ // Prior value is NOT heap allocated, but was a literal constant.
+ old_value = os::strdup_check_oom(old_value);
+ }
+ *value = old_value;
+ result->set_origin(origin);
+ return check;
+}
+
+Flag::Error CommandLineFlagsEx::ccstrAtPut(CommandLineFlagWithType flag, ccstr value, Flag::Flags origin) {
+ Flag* faddr = address_of_flag(flag);
+ guarantee(faddr != NULL && faddr->is_ccstr(), "wrong flag type");
+ ccstr old_value = faddr->get_ccstr();
+ trace_flag_changed<EventStringFlagChanged, const char*>(faddr->_name, old_value, value, origin);
+ char* new_value = os::strdup_check_oom(value);
+ Flag::Error check = faddr->set_ccstr(new_value);
+ if (!faddr->is_default() && old_value != NULL) {
+ // Prior value is heap allocated so free it.
+ FREE_C_HEAP_ARRAY(char, old_value);
+ }
+ faddr->set_origin(origin);
+ return check;
+}
+
+extern "C" {
+ static int compare_flags(const void* void_a, const void* void_b) {
+ return strcmp((*((Flag**) void_a))->_name, (*((Flag**) void_b))->_name);
+ }
+}
+
+void CommandLineFlags::printSetFlags(outputStream* out) {
+ // Print which flags were set on the command line
+ // note: this method is called before the thread structure is in place
+ // which means resource allocation cannot be used.
+
+ // The last entry is the null entry.
+ const size_t length = Flag::numFlags - 1;
+
+ // Sort
+ Flag** array = NEW_C_HEAP_ARRAY(Flag*, length, mtArguments);
+ for (size_t i = 0; i < length; i++) {
+ array[i] = &flagTable[i];
+ }
+ qsort(array, length, sizeof(Flag*), compare_flags);
+
+ // Print
+ for (size_t i = 0; i < length; i++) {
+ if (array[i]->get_origin() /* naked field! */) {
+ array[i]->print_as_flag(out);
+ out->print(" ");
+ }
+ }
+ out->cr();
+ FREE_C_HEAP_ARRAY(Flag*, array);
+}
+
+#ifndef PRODUCT
+
+void CommandLineFlags::verify() {
+ assert(Arguments::check_vm_args_consistency(), "Some flag settings conflict");
+}
+
+#endif // PRODUCT
+
+void CommandLineFlags::printFlags(outputStream* out, bool withComments, bool printRanges) {
+ // Print the flags sorted by name
+ // note: this method is called before the thread structure is in place
+ // which means resource allocation cannot be used.
+
+ // The last entry is the null entry.
+ const size_t length = Flag::numFlags - 1;
+
+ // Sort
+ Flag** array = NEW_C_HEAP_ARRAY(Flag*, length, mtArguments);
+ for (size_t i = 0; i < length; i++) {
+ array[i] = &flagTable[i];
+ }
+ qsort(array, length, sizeof(Flag*), compare_flags);
+
+ // Print
+ if (!printRanges) {
+ out->print_cr("[Global flags]");
+ } else {
+ out->print_cr("[Global flags ranges]");
+ }
+
+ for (size_t i = 0; i < length; i++) {
+ if (array[i]->is_unlocked()) {
+ array[i]->print_on(out, withComments, printRanges);
+ }
+ }
+ FREE_C_HEAP_ARRAY(Flag*, array);
+}