| /* |
| * Copyright (c) 1997, 2018, 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 "jfr/jfrEvents.hpp" |
| #include "memory/allocation.inline.hpp" |
| #include "runtime/arguments.hpp" |
| #include "runtime/flags/jvmFlag.hpp" |
| #include "runtime/flags/jvmFlagConstraintList.hpp" |
| #include "runtime/flags/jvmFlagWriteableList.hpp" |
| #include "runtime/flags/jvmFlagRangeList.hpp" |
| #include "runtime/globals_extension.hpp" |
| #include "utilities/defaultStream.hpp" |
| #include "utilities/stringUtils.hpp" |
| |
| #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* JVMFlag::get_int_default_range_str() { |
| return create_range_str("[ " INT32_FORMAT_W(-25) " ... " INT32_FORMAT_W(25) " ]", INT_MIN, INT_MAX); |
| } |
| |
| const char* JVMFlag::get_uint_default_range_str() { |
| return create_range_str("[ " UINT32_FORMAT_W(-25) " ... " UINT32_FORMAT_W(25) " ]", 0, UINT_MAX); |
| } |
| |
| const char* JVMFlag::get_intx_default_range_str() { |
| return create_range_str("[ " INTX_FORMAT_W(-25) " ... " INTX_FORMAT_W(25) " ]", min_intx, max_intx); |
| } |
| |
| const char* JVMFlag::get_uintx_default_range_str() { |
| return create_range_str("[ " UINTX_FORMAT_W(-25) " ... " UINTX_FORMAT_W(25) " ]", 0, max_uintx); |
| } |
| |
| const char* JVMFlag::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* JVMFlag::get_size_t_default_range_str() { |
| return create_range_str("[ " SIZE_FORMAT_W(-25) " ... " SIZE_FORMAT_W(25) " ]", 0, SIZE_MAX); |
| } |
| |
| const char* JVMFlag::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 |
| } |
| |
| JVMFlag::Error JVMFlag::check_writable(bool changed) { |
| if (is_constant_in_binary()) { |
| fatal("flag is constant: %s", _name); |
| } |
| |
| JVMFlag::Error error = JVMFlag::SUCCESS; |
| if (changed) { |
| JVMFlagWriteable* writeable = JVMFlagWriteableList::find(_name); |
| if (writeable) { |
| if (writeable->is_writeable() == false) { |
| switch (writeable->type()) |
| { |
| case JVMFlagWriteable::Once: |
| error = JVMFlag::SET_ONLY_ONCE; |
| jio_fprintf(defaultStream::error_stream(), "Error: %s may not be set more than once\n", _name); |
| break; |
| case JVMFlagWriteable::CommandLineOnly: |
| error = JVMFlag::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 JVMFlag::is_bool() const { |
| return strcmp(_type, "bool") == 0; |
| } |
| |
| bool JVMFlag::get_bool() const { |
| return *((bool*) _addr); |
| } |
| |
| JVMFlag::Error JVMFlag::set_bool(bool value) { |
| JVMFlag::Error error = check_writable(value!=get_bool()); |
| if (error == JVMFlag::SUCCESS) { |
| *((bool*) _addr) = value; |
| } |
| return error; |
| } |
| |
| bool JVMFlag::is_int() const { |
| return strcmp(_type, "int") == 0; |
| } |
| |
| int JVMFlag::get_int() const { |
| return *((int*) _addr); |
| } |
| |
| JVMFlag::Error JVMFlag::set_int(int value) { |
| JVMFlag::Error error = check_writable(value!=get_int()); |
| if (error == JVMFlag::SUCCESS) { |
| *((int*) _addr) = value; |
| } |
| return error; |
| } |
| |
| bool JVMFlag::is_uint() const { |
| return strcmp(_type, "uint") == 0; |
| } |
| |
| uint JVMFlag::get_uint() const { |
| return *((uint*) _addr); |
| } |
| |
| JVMFlag::Error JVMFlag::set_uint(uint value) { |
| JVMFlag::Error error = check_writable(value!=get_uint()); |
| if (error == JVMFlag::SUCCESS) { |
| *((uint*) _addr) = value; |
| } |
| return error; |
| } |
| |
| bool JVMFlag::is_intx() const { |
| return strcmp(_type, "intx") == 0; |
| } |
| |
| intx JVMFlag::get_intx() const { |
| return *((intx*) _addr); |
| } |
| |
| JVMFlag::Error JVMFlag::set_intx(intx value) { |
| JVMFlag::Error error = check_writable(value!=get_intx()); |
| if (error == JVMFlag::SUCCESS) { |
| *((intx*) _addr) = value; |
| } |
| return error; |
| } |
| |
| bool JVMFlag::is_uintx() const { |
| return strcmp(_type, "uintx") == 0; |
| } |
| |
| uintx JVMFlag::get_uintx() const { |
| return *((uintx*) _addr); |
| } |
| |
| JVMFlag::Error JVMFlag::set_uintx(uintx value) { |
| JVMFlag::Error error = check_writable(value!=get_uintx()); |
| if (error == JVMFlag::SUCCESS) { |
| *((uintx*) _addr) = value; |
| } |
| return error; |
| } |
| |
| bool JVMFlag::is_uint64_t() const { |
| return strcmp(_type, "uint64_t") == 0; |
| } |
| |
| uint64_t JVMFlag::get_uint64_t() const { |
| return *((uint64_t*) _addr); |
| } |
| |
| JVMFlag::Error JVMFlag::set_uint64_t(uint64_t value) { |
| JVMFlag::Error error = check_writable(value!=get_uint64_t()); |
| if (error == JVMFlag::SUCCESS) { |
| *((uint64_t*) _addr) = value; |
| } |
| return error; |
| } |
| |
| bool JVMFlag::is_size_t() const { |
| return strcmp(_type, "size_t") == 0; |
| } |
| |
| size_t JVMFlag::get_size_t() const { |
| return *((size_t*) _addr); |
| } |
| |
| JVMFlag::Error JVMFlag::set_size_t(size_t value) { |
| JVMFlag::Error error = check_writable(value!=get_size_t()); |
| if (error == JVMFlag::SUCCESS) { |
| *((size_t*) _addr) = value; |
| } |
| return error; |
| } |
| |
| bool JVMFlag::is_double() const { |
| return strcmp(_type, "double") == 0; |
| } |
| |
| double JVMFlag::get_double() const { |
| return *((double*) _addr); |
| } |
| |
| JVMFlag::Error JVMFlag::set_double(double value) { |
| JVMFlag::Error error = check_writable(value!=get_double()); |
| if (error == JVMFlag::SUCCESS) { |
| *((double*) _addr) = value; |
| } |
| return error; |
| } |
| |
| bool JVMFlag::is_ccstr() const { |
| return strcmp(_type, "ccstr") == 0 || strcmp(_type, "ccstrlist") == 0; |
| } |
| |
| bool JVMFlag::ccstr_accumulates() const { |
| return strcmp(_type, "ccstrlist") == 0; |
| } |
| |
| ccstr JVMFlag::get_ccstr() const { |
| return *((ccstr*) _addr); |
| } |
| |
| JVMFlag::Error JVMFlag::set_ccstr(ccstr value) { |
| JVMFlag::Error error = check_writable(value!=get_ccstr()); |
| if (error == JVMFlag::SUCCESS) { |
| *((ccstr*) _addr) = value; |
| } |
| return error; |
| } |
| |
| |
| JVMFlag::Flags JVMFlag::get_origin() { |
| return Flags(_flags & VALUE_ORIGIN_MASK); |
| } |
| |
| void JVMFlag::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 JVMFlag::is_default() { |
| return (get_origin() == DEFAULT); |
| } |
| |
| bool JVMFlag::is_ergonomic() { |
| return (get_origin() == ERGONOMIC); |
| } |
| |
| bool JVMFlag::is_command_line() { |
| return (_flags & ORIG_COMMAND_LINE) != 0; |
| } |
| |
| bool JVMFlag::is_jimage_resource() { |
| return (get_origin() == JIMAGE_RESOURCE); |
| } |
| |
| void JVMFlag::set_command_line() { |
| _flags = Flags(_flags | ORIG_COMMAND_LINE); |
| } |
| |
| bool JVMFlag::is_product() const { |
| return (_flags & KIND_PRODUCT) != 0; |
| } |
| |
| bool JVMFlag::is_manageable() const { |
| return (_flags & KIND_MANAGEABLE) != 0; |
| } |
| |
| bool JVMFlag::is_diagnostic() const { |
| return (_flags & KIND_DIAGNOSTIC) != 0; |
| } |
| |
| bool JVMFlag::is_experimental() const { |
| return (_flags & KIND_EXPERIMENTAL) != 0; |
| } |
| |
| bool JVMFlag::is_notproduct() const { |
| return (_flags & KIND_NOT_PRODUCT) != 0; |
| } |
| |
| bool JVMFlag::is_develop() const { |
| return (_flags & KIND_DEVELOP) != 0; |
| } |
| |
| bool JVMFlag::is_read_write() const { |
| return (_flags & KIND_READ_WRITE) != 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 JVMFlag::is_constant_in_binary() const { |
| #ifdef PRODUCT |
| return is_notproduct() || is_develop(); |
| #else |
| return false; |
| #endif |
| } |
| |
| bool JVMFlag::is_unlocker() const { |
| return strcmp(_name, "UnlockDiagnosticVMOptions") == 0 || |
| strcmp(_name, "UnlockExperimentalVMOptions") == 0 || |
| is_unlocker_ext(); |
| } |
| |
| bool JVMFlag::is_unlocked() const { |
| if (is_diagnostic()) { |
| return UnlockDiagnosticVMOptions; |
| } |
| if (is_experimental()) { |
| return UnlockExperimentalVMOptions; |
| } |
| return is_unlocked_ext(); |
| } |
| |
| void JVMFlag::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. |
| JVMFlag::MsgType JVMFlag::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 JVMFlag::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 JVMFlag::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 JVMFlag::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 JVMFlag::NOTPRODUCT_FLAG_BUT_PRODUCT_BUILD; |
| } |
| return get_locked_message_ext(buf, buflen); |
| } |
| |
| bool JVMFlag::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 JVMFlag::is_external() const { |
| return is_manageable() || is_external_ext(); |
| } |
| |
| // Helper function for JVMFlag::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 JVMFlag::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 = JVMFlag::get_int_default_range_str; |
| } else if (is_uint()) { |
| func = JVMFlag::get_uint_default_range_str; |
| } else if (is_intx()) { |
| func = JVMFlag::get_intx_default_range_str; |
| } else if (is_uintx()) { |
| func = JVMFlag::get_uintx_default_range_str; |
| } else if (is_uint64_t()) { |
| func = JVMFlag::get_uint64_t_default_range_str; |
| } else if (is_size_t()) { |
| func = JVMFlag::get_size_t_default_range_str; |
| } else if (is_double()) { |
| func = JVMFlag::get_double_default_range_str; |
| } else { |
| st->print("unhandled type %s", _type); |
| st->cr(); |
| return; |
| } |
| JVMFlagRangeList::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 JVMFlag::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_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 JVMFlag::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; |
| case JIMAGE_RESOURCE: |
| st->print("jimage"); break; |
| } |
| st->print("}"); |
| } |
| |
| void JVMFlag::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* JVMFlag::flag_error_str(JVMFlag::Error error) { |
| switch (error) { |
| case JVMFlag::MISSING_NAME: return "MISSING_NAME"; |
| case JVMFlag::MISSING_VALUE: return "MISSING_VALUE"; |
| case JVMFlag::NON_WRITABLE: return "NON_WRITABLE"; |
| case JVMFlag::OUT_OF_BOUNDS: return "OUT_OF_BOUNDS"; |
| case JVMFlag::VIOLATES_CONSTRAINT: return "VIOLATES_CONSTRAINT"; |
| case JVMFlag::INVALID_FLAG: return "INVALID_FLAG"; |
| case JVMFlag::ERR_OTHER: return "ERR_OTHER"; |
| case JVMFlag::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) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_PRODUCT) }, |
| #define RUNTIME_PD_PRODUCT_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_PRODUCT | JVMFlag::KIND_PLATFORM_DEPENDENT) }, |
| #define RUNTIME_DIAGNOSTIC_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_DIAGNOSTIC) }, |
| #define RUNTIME_PD_DIAGNOSTIC_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_DIAGNOSTIC | JVMFlag::KIND_PLATFORM_DEPENDENT) }, |
| #define RUNTIME_EXPERIMENTAL_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_EXPERIMENTAL) }, |
| #define RUNTIME_MANAGEABLE_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_MANAGEABLE) }, |
| #define RUNTIME_PRODUCT_RW_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_PRODUCT | JVMFlag::KIND_READ_WRITE) }, |
| #define RUNTIME_DEVELOP_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_DEVELOP) }, |
| #define RUNTIME_PD_DEVELOP_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_DEVELOP | JVMFlag::KIND_PLATFORM_DEPENDENT) }, |
| #define RUNTIME_NOTPRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_NOT_PRODUCT) }, |
| |
| #define JVMCI_PRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_JVMCI | JVMFlag::KIND_PRODUCT) }, |
| #define JVMCI_PD_PRODUCT_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_JVMCI | JVMFlag::KIND_PRODUCT | JVMFlag::KIND_PLATFORM_DEPENDENT) }, |
| #define JVMCI_DIAGNOSTIC_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_JVMCI | JVMFlag::KIND_DIAGNOSTIC) }, |
| #define JVMCI_PD_DIAGNOSTIC_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_JVMCI | JVMFlag::KIND_DIAGNOSTIC | JVMFlag::KIND_PLATFORM_DEPENDENT) }, |
| #define JVMCI_EXPERIMENTAL_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_JVMCI | JVMFlag::KIND_EXPERIMENTAL) }, |
| #define JVMCI_DEVELOP_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_JVMCI | JVMFlag::KIND_DEVELOP) }, |
| #define JVMCI_PD_DEVELOP_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_JVMCI | JVMFlag::KIND_DEVELOP | JVMFlag::KIND_PLATFORM_DEPENDENT) }, |
| #define JVMCI_NOTPRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_JVMCI | JVMFlag::KIND_NOT_PRODUCT) }, |
| |
| #ifdef _LP64 |
| #define RUNTIME_LP64_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::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) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_C1 | JVMFlag::KIND_PRODUCT) }, |
| #define C1_PD_PRODUCT_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_C1 | JVMFlag::KIND_PRODUCT | JVMFlag::KIND_PLATFORM_DEPENDENT) }, |
| #define C1_DIAGNOSTIC_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_C1 | JVMFlag::KIND_DIAGNOSTIC) }, |
| #define C1_PD_DIAGNOSTIC_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_C1 | JVMFlag::KIND_DIAGNOSTIC | JVMFlag::KIND_PLATFORM_DEPENDENT) }, |
| #define C1_DEVELOP_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_C1 | JVMFlag::KIND_DEVELOP) }, |
| #define C1_PD_DEVELOP_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_C1 | JVMFlag::KIND_DEVELOP | JVMFlag::KIND_PLATFORM_DEPENDENT) }, |
| #define C1_NOTPRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_C1 | JVMFlag::KIND_NOT_PRODUCT) }, |
| |
| #define C2_PRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_C2 | JVMFlag::KIND_PRODUCT) }, |
| #define C2_PD_PRODUCT_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_C2 | JVMFlag::KIND_PRODUCT | JVMFlag::KIND_PLATFORM_DEPENDENT) }, |
| #define C2_DIAGNOSTIC_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_C2 | JVMFlag::KIND_DIAGNOSTIC) }, |
| #define C2_PD_DIAGNOSTIC_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_C2 | JVMFlag::KIND_DIAGNOSTIC | JVMFlag::KIND_PLATFORM_DEPENDENT) }, |
| #define C2_EXPERIMENTAL_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_C2 | JVMFlag::KIND_EXPERIMENTAL) }, |
| #define C2_DEVELOP_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_C2 | JVMFlag::KIND_DEVELOP) }, |
| #define C2_PD_DEVELOP_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_C2 | JVMFlag::KIND_DEVELOP | JVMFlag::KIND_PLATFORM_DEPENDENT) }, |
| #define C2_NOTPRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_C2 | JVMFlag::KIND_NOT_PRODUCT) }, |
| |
| #define ARCH_PRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_ARCH | JVMFlag::KIND_PRODUCT) }, |
| #define ARCH_DIAGNOSTIC_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_ARCH | JVMFlag::KIND_DIAGNOSTIC) }, |
| #define ARCH_EXPERIMENTAL_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_ARCH | JVMFlag::KIND_EXPERIMENTAL) }, |
| #define ARCH_DEVELOP_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_ARCH | JVMFlag::KIND_DEVELOP) }, |
| #define ARCH_NOTPRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), (void*) &name, NOT_PRODUCT_ARG(doc) JVMFlag::Flags(JVMFlag::DEFAULT | JVMFlag::KIND_ARCH | JVMFlag::KIND_NOT_PRODUCT) }, |
| |
| static JVMFlag 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} |
| }; |
| |
| JVMFlag* JVMFlag::flags = flagTable; |
| size_t JVMFlag::numFlags = (sizeof(flagTable) / sizeof(JVMFlag)); |
| |
| 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 |
| JVMFlag* JVMFlag::find_flag(const char* name, size_t length, bool allow_locked, bool return_flag) { |
| for (JVMFlag* 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, |
| // etc. until they are explicitly unlocked |
| return NULL; |
| } |
| } |
| return current; |
| } |
| } |
| // JVMFlag name is not in the flag table |
| return NULL; |
| } |
| |
| // Get or compute the flag name length |
| size_t JVMFlag::get_name_length() { |
| if (_name_len == 0) { |
| _name_len = strlen(_name); |
| } |
| return _name_len; |
| } |
| |
| JVMFlag* JVMFlag::fuzzy_match(const char* name, size_t length, bool allow_locked) { |
| float VMOptionsFuzzyMatchSimilarity = 0.7f; |
| JVMFlag* match = NULL; |
| float score; |
| float max_score = -1; |
| |
| for (JVMFlag* 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 == NULL) { |
| return NULL; |
| } |
| |
| 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 JVMFlag* address_of_flag(JVMFlagsWithType flag) { |
| assert((size_t)flag < JVMFlag::numFlags, "bad command line flag index"); |
| return &JVMFlag::flags[flag]; |
| } |
| |
| bool JVMFlagEx::is_default(JVMFlags flag) { |
| assert((size_t)flag < JVMFlag::numFlags, "bad command line flag index"); |
| JVMFlag* f = &JVMFlag::flags[flag]; |
| return f->is_default(); |
| } |
| |
| bool JVMFlagEx::is_ergo(JVMFlags flag) { |
| assert((size_t)flag < JVMFlag::numFlags, "bad command line flag index"); |
| JVMFlag* f = &JVMFlag::flags[flag]; |
| return f->is_ergonomic(); |
| } |
| |
| bool JVMFlagEx::is_cmdline(JVMFlags flag) { |
| assert((size_t)flag < JVMFlag::numFlags, "bad command line flag index"); |
| JVMFlag* f = &JVMFlag::flags[flag]; |
| return f->is_command_line(); |
| } |
| |
| bool JVMFlag::wasSetOnCmdline(const char* name, bool* value) { |
| JVMFlag* result = JVMFlag::find_flag((char*)name, strlen(name)); |
| if (result == NULL) return false; |
| *value = result->is_command_line(); |
| return true; |
| } |
| |
| bool JVMFlagEx::is_jimage_resource(JVMFlags flag) { |
| assert((size_t)flag < JVMFlag::numFlags, "bad command line flag index"); |
| JVMFlag* f = &JVMFlag::flags[flag]; |
| return f->is_jimage_resource(); |
| } |
| |
| void JVMFlagEx::setOnCmdLine(JVMFlagsWithType flag) { |
| JVMFlag* 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 JVMFlag::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 JVMFlag::Error apply_constraint_and_check_range_bool(const char* name, bool new_value, bool verbose) { |
| JVMFlag::Error status = JVMFlag::SUCCESS; |
| JVMFlagConstraint* constraint = JVMFlagConstraintList::find_if_needs_check(name); |
| if (constraint != NULL) { |
| status = constraint->apply_bool(new_value, verbose); |
| } |
| return status; |
| } |
| |
| JVMFlag::Error JVMFlag::boolAt(const char* name, size_t len, bool* value, bool allow_locked, bool return_flag) { |
| JVMFlag* result = JVMFlag::find_flag(name, len, allow_locked, return_flag); |
| if (result == NULL) return JVMFlag::INVALID_FLAG; |
| if (!result->is_bool()) return JVMFlag::WRONG_FORMAT; |
| *value = result->get_bool(); |
| return JVMFlag::SUCCESS; |
| } |
| |
| JVMFlag::Error JVMFlag::boolAtPut(JVMFlag* flag, bool* value, JVMFlag::Flags origin) { |
| const char* name; |
| if (flag == NULL) return JVMFlag::INVALID_FLAG; |
| if (!flag->is_bool()) return JVMFlag::WRONG_FORMAT; |
| name = flag->_name; |
| JVMFlag::Error check = apply_constraint_and_check_range_bool(name, *value, !JVMFlagConstraintList::validated_after_ergo()); |
| if (check != JVMFlag::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; |
| } |
| |
| JVMFlag::Error JVMFlag::boolAtPut(const char* name, size_t len, bool* value, JVMFlag::Flags origin) { |
| JVMFlag* result = JVMFlag::find_flag(name, len); |
| return boolAtPut(result, value, origin); |
| } |
| |
| JVMFlag::Error JVMFlagEx::boolAtPut(JVMFlagsWithType flag, bool value, JVMFlag::Flags origin) { |
| JVMFlag* faddr = address_of_flag(flag); |
| guarantee(faddr != NULL && faddr->is_bool(), "wrong flag type"); |
| return JVMFlag::boolAtPut(faddr, &value, origin); |
| } |
| |
| static JVMFlag::Error apply_constraint_and_check_range_int(const char* name, int new_value, bool verbose) { |
| JVMFlag::Error status = JVMFlag::SUCCESS; |
| JVMFlagRange* range = JVMFlagRangeList::find(name); |
| if (range != NULL) { |
| status = range->check_int(new_value, verbose); |
| } |
| if (status == JVMFlag::SUCCESS) { |
| JVMFlagConstraint* constraint = JVMFlagConstraintList::find_if_needs_check(name); |
| if (constraint != NULL) { |
| status = constraint->apply_int(new_value, verbose); |
| } |
| } |
| return status; |
| } |
| |
| JVMFlag::Error JVMFlag::intAt(const char* name, size_t len, int* value, bool allow_locked, bool return_flag) { |
| JVMFlag* result = JVMFlag::find_flag(name, len, allow_locked, return_flag); |
| if (result == NULL) return JVMFlag::INVALID_FLAG; |
| if (!result->is_int()) return JVMFlag::WRONG_FORMAT; |
| *value = result->get_int(); |
| return JVMFlag::SUCCESS; |
| } |
| |
| JVMFlag::Error JVMFlag::intAtPut(JVMFlag* flag, int* value, JVMFlag::Flags origin) { |
| const char* name; |
| if (flag == NULL) return JVMFlag::INVALID_FLAG; |
| if (!flag->is_int()) return JVMFlag::WRONG_FORMAT; |
| name = flag->_name; |
| JVMFlag::Error check = apply_constraint_and_check_range_int(name, *value, !JVMFlagConstraintList::validated_after_ergo()); |
| if (check != JVMFlag::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; |
| } |
| |
| JVMFlag::Error JVMFlag::intAtPut(const char* name, size_t len, int* value, JVMFlag::Flags origin) { |
| JVMFlag* result = JVMFlag::find_flag(name, len); |
| return intAtPut(result, value, origin); |
| } |
| |
| JVMFlag::Error JVMFlagEx::intAtPut(JVMFlagsWithType flag, int value, JVMFlag::Flags origin) { |
| JVMFlag* faddr = address_of_flag(flag); |
| guarantee(faddr != NULL && faddr->is_int(), "wrong flag type"); |
| return JVMFlag::intAtPut(faddr, &value, origin); |
| } |
| |
| static JVMFlag::Error apply_constraint_and_check_range_uint(const char* name, uint new_value, bool verbose) { |
| JVMFlag::Error status = JVMFlag::SUCCESS; |
| JVMFlagRange* range = JVMFlagRangeList::find(name); |
| if (range != NULL) { |
| status = range->check_uint(new_value, verbose); |
| } |
| if (status == JVMFlag::SUCCESS) { |
| JVMFlagConstraint* constraint = JVMFlagConstraintList::find_if_needs_check(name); |
| if (constraint != NULL) { |
| status = constraint->apply_uint(new_value, verbose); |
| } |
| } |
| return status; |
| } |
| |
| JVMFlag::Error JVMFlag::uintAt(const char* name, size_t len, uint* value, bool allow_locked, bool return_flag) { |
| JVMFlag* result = JVMFlag::find_flag(name, len, allow_locked, return_flag); |
| if (result == NULL) return JVMFlag::INVALID_FLAG; |
| if (!result->is_uint()) return JVMFlag::WRONG_FORMAT; |
| *value = result->get_uint(); |
| return JVMFlag::SUCCESS; |
| } |
| |
| JVMFlag::Error JVMFlag::uintAtPut(JVMFlag* flag, uint* value, JVMFlag::Flags origin) { |
| const char* name; |
| if (flag == NULL) return JVMFlag::INVALID_FLAG; |
| if (!flag->is_uint()) return JVMFlag::WRONG_FORMAT; |
| name = flag->_name; |
| JVMFlag::Error check = apply_constraint_and_check_range_uint(name, *value, !JVMFlagConstraintList::validated_after_ergo()); |
| if (check != JVMFlag::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; |
| } |
| |
| JVMFlag::Error JVMFlag::uintAtPut(const char* name, size_t len, uint* value, JVMFlag::Flags origin) { |
| JVMFlag* result = JVMFlag::find_flag(name, len); |
| return uintAtPut(result, value, origin); |
| } |
| |
| JVMFlag::Error JVMFlagEx::uintAtPut(JVMFlagsWithType flag, uint value, JVMFlag::Flags origin) { |
| JVMFlag* faddr = address_of_flag(flag); |
| guarantee(faddr != NULL && faddr->is_uint(), "wrong flag type"); |
| return JVMFlag::uintAtPut(faddr, &value, origin); |
| } |
| |
| JVMFlag::Error JVMFlag::intxAt(const char* name, size_t len, intx* value, bool allow_locked, bool return_flag) { |
| JVMFlag* result = JVMFlag::find_flag(name, len, allow_locked, return_flag); |
| if (result == NULL) return JVMFlag::INVALID_FLAG; |
| if (!result->is_intx()) return JVMFlag::WRONG_FORMAT; |
| *value = result->get_intx(); |
| return JVMFlag::SUCCESS; |
| } |
| |
| static JVMFlag::Error apply_constraint_and_check_range_intx(const char* name, intx new_value, bool verbose) { |
| JVMFlag::Error status = JVMFlag::SUCCESS; |
| JVMFlagRange* range = JVMFlagRangeList::find(name); |
| if (range != NULL) { |
| status = range->check_intx(new_value, verbose); |
| } |
| if (status == JVMFlag::SUCCESS) { |
| JVMFlagConstraint* constraint = JVMFlagConstraintList::find_if_needs_check(name); |
| if (constraint != NULL) { |
| status = constraint->apply_intx(new_value, verbose); |
| } |
| } |
| return status; |
| } |
| |
| JVMFlag::Error JVMFlag::intxAtPut(JVMFlag* flag, intx* value, JVMFlag::Flags origin) { |
| const char* name; |
| if (flag == NULL) return JVMFlag::INVALID_FLAG; |
| if (!flag->is_intx()) return JVMFlag::WRONG_FORMAT; |
| name = flag->_name; |
| JVMFlag::Error check = apply_constraint_and_check_range_intx(name, *value, !JVMFlagConstraintList::validated_after_ergo()); |
| if (check != JVMFlag::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; |
| } |
| |
| JVMFlag::Error JVMFlag::intxAtPut(const char* name, size_t len, intx* value, JVMFlag::Flags origin) { |
| JVMFlag* result = JVMFlag::find_flag(name, len); |
| return intxAtPut(result, value, origin); |
| } |
| |
| JVMFlag::Error JVMFlagEx::intxAtPut(JVMFlagsWithType flag, intx value, JVMFlag::Flags origin) { |
| JVMFlag* faddr = address_of_flag(flag); |
| guarantee(faddr != NULL && faddr->is_intx(), "wrong flag type"); |
| return JVMFlag::intxAtPut(faddr, &value, origin); |
| } |
| |
| JVMFlag::Error JVMFlag::uintxAt(const char* name, size_t len, uintx* value, bool allow_locked, bool return_flag) { |
| JVMFlag* result = JVMFlag::find_flag(name, len, allow_locked, return_flag); |
| if (result == NULL) return JVMFlag::INVALID_FLAG; |
| if (!result->is_uintx()) return JVMFlag::WRONG_FORMAT; |
| *value = result->get_uintx(); |
| return JVMFlag::SUCCESS; |
| } |
| |
| static JVMFlag::Error apply_constraint_and_check_range_uintx(const char* name, uintx new_value, bool verbose) { |
| JVMFlag::Error status = JVMFlag::SUCCESS; |
| JVMFlagRange* range = JVMFlagRangeList::find(name); |
| if (range != NULL) { |
| status = range->check_uintx(new_value, verbose); |
| } |
| if (status == JVMFlag::SUCCESS) { |
| JVMFlagConstraint* constraint = JVMFlagConstraintList::find_if_needs_check(name); |
| if (constraint != NULL) { |
| status = constraint->apply_uintx(new_value, verbose); |
| } |
| } |
| return status; |
| } |
| |
| JVMFlag::Error JVMFlag::uintxAtPut(JVMFlag* flag, uintx* value, JVMFlag::Flags origin) { |
| const char* name; |
| if (flag == NULL) return JVMFlag::INVALID_FLAG; |
| if (!flag->is_uintx()) return JVMFlag::WRONG_FORMAT; |
| name = flag->_name; |
| JVMFlag::Error check = apply_constraint_and_check_range_uintx(name, *value, !JVMFlagConstraintList::validated_after_ergo()); |
| if (check != JVMFlag::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; |
| } |
| |
| JVMFlag::Error JVMFlag::uintxAtPut(const char* name, size_t len, uintx* value, JVMFlag::Flags origin) { |
| JVMFlag* result = JVMFlag::find_flag(name, len); |
| return uintxAtPut(result, value, origin); |
| } |
| |
| JVMFlag::Error JVMFlagEx::uintxAtPut(JVMFlagsWithType flag, uintx value, JVMFlag::Flags origin) { |
| JVMFlag* faddr = address_of_flag(flag); |
| guarantee(faddr != NULL && faddr->is_uintx(), "wrong flag type"); |
| return JVMFlag::uintxAtPut(faddr, &value, origin); |
| } |
| |
| JVMFlag::Error JVMFlag::uint64_tAt(const char* name, size_t len, uint64_t* value, bool allow_locked, bool return_flag) { |
| JVMFlag* result = JVMFlag::find_flag(name, len, allow_locked, return_flag); |
| if (result == NULL) return JVMFlag::INVALID_FLAG; |
| if (!result->is_uint64_t()) return JVMFlag::WRONG_FORMAT; |
| *value = result->get_uint64_t(); |
| return JVMFlag::SUCCESS; |
| } |
| |
| static JVMFlag::Error apply_constraint_and_check_range_uint64_t(const char* name, uint64_t new_value, bool verbose) { |
| JVMFlag::Error status = JVMFlag::SUCCESS; |
| JVMFlagRange* range = JVMFlagRangeList::find(name); |
| if (range != NULL) { |
| status = range->check_uint64_t(new_value, verbose); |
| } |
| if (status == JVMFlag::SUCCESS) { |
| JVMFlagConstraint* constraint = JVMFlagConstraintList::find_if_needs_check(name); |
| if (constraint != NULL) { |
| status = constraint->apply_uint64_t(new_value, verbose); |
| } |
| } |
| return status; |
| } |
| |
| JVMFlag::Error JVMFlag::uint64_tAtPut(JVMFlag* flag, uint64_t* value, JVMFlag::Flags origin) { |
| const char* name; |
| if (flag == NULL) return JVMFlag::INVALID_FLAG; |
| if (!flag->is_uint64_t()) return JVMFlag::WRONG_FORMAT; |
| name = flag->_name; |
| JVMFlag::Error check = apply_constraint_and_check_range_uint64_t(name, *value, !JVMFlagConstraintList::validated_after_ergo()); |
| if (check != JVMFlag::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; |
| } |
| |
| JVMFlag::Error JVMFlag::uint64_tAtPut(const char* name, size_t len, uint64_t* value, JVMFlag::Flags origin) { |
| JVMFlag* result = JVMFlag::find_flag(name, len); |
| return uint64_tAtPut(result, value, origin); |
| } |
| |
| JVMFlag::Error JVMFlagEx::uint64_tAtPut(JVMFlagsWithType flag, uint64_t value, JVMFlag::Flags origin) { |
| JVMFlag* faddr = address_of_flag(flag); |
| guarantee(faddr != NULL && faddr->is_uint64_t(), "wrong flag type"); |
| return JVMFlag::uint64_tAtPut(faddr, &value, origin); |
| } |
| |
| JVMFlag::Error JVMFlag::size_tAt(const char* name, size_t len, size_t* value, bool allow_locked, bool return_flag) { |
| JVMFlag* result = JVMFlag::find_flag(name, len, allow_locked, return_flag); |
| if (result == NULL) return JVMFlag::INVALID_FLAG; |
| if (!result->is_size_t()) return JVMFlag::WRONG_FORMAT; |
| *value = result->get_size_t(); |
| return JVMFlag::SUCCESS; |
| } |
| |
| static JVMFlag::Error apply_constraint_and_check_range_size_t(const char* name, size_t new_value, bool verbose) { |
| JVMFlag::Error status = JVMFlag::SUCCESS; |
| JVMFlagRange* range = JVMFlagRangeList::find(name); |
| if (range != NULL) { |
| status = range->check_size_t(new_value, verbose); |
| } |
| if (status == JVMFlag::SUCCESS) { |
| JVMFlagConstraint* constraint = JVMFlagConstraintList::find_if_needs_check(name); |
| if (constraint != NULL) { |
| status = constraint->apply_size_t(new_value, verbose); |
| } |
| } |
| return status; |
| } |
| |
| |
| JVMFlag::Error JVMFlag::size_tAtPut(JVMFlag* flag, size_t* value, JVMFlag::Flags origin) { |
| const char* name; |
| if (flag == NULL) return JVMFlag::INVALID_FLAG; |
| if (!flag->is_size_t()) return JVMFlag::WRONG_FORMAT; |
| name = flag->_name; |
| JVMFlag::Error check = apply_constraint_and_check_range_size_t(name, *value, !JVMFlagConstraintList::validated_after_ergo()); |
| if (check != JVMFlag::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; |
| } |
| |
| JVMFlag::Error JVMFlag::size_tAtPut(const char* name, size_t len, size_t* value, JVMFlag::Flags origin) { |
| JVMFlag* result = JVMFlag::find_flag(name, len); |
| return size_tAtPut(result, value, origin); |
| } |
| |
| JVMFlag::Error JVMFlagEx::size_tAtPut(JVMFlagsWithType flag, size_t value, JVMFlag::Flags origin) { |
| JVMFlag* faddr = address_of_flag(flag); |
| guarantee(faddr != NULL && faddr->is_size_t(), "wrong flag type"); |
| return JVMFlag::size_tAtPut(faddr, &value, origin); |
| } |
| |
| JVMFlag::Error JVMFlag::doubleAt(const char* name, size_t len, double* value, bool allow_locked, bool return_flag) { |
| JVMFlag* result = JVMFlag::find_flag(name, len, allow_locked, return_flag); |
| if (result == NULL) return JVMFlag::INVALID_FLAG; |
| if (!result->is_double()) return JVMFlag::WRONG_FORMAT; |
| *value = result->get_double(); |
| return JVMFlag::SUCCESS; |
| } |
| |
| static JVMFlag::Error apply_constraint_and_check_range_double(const char* name, double new_value, bool verbose) { |
| JVMFlag::Error status = JVMFlag::SUCCESS; |
| JVMFlagRange* range = JVMFlagRangeList::find(name); |
| if (range != NULL) { |
| status = range->check_double(new_value, verbose); |
| } |
| if (status == JVMFlag::SUCCESS) { |
| JVMFlagConstraint* constraint = JVMFlagConstraintList::find_if_needs_check(name); |
| if (constraint != NULL) { |
| status = constraint->apply_double(new_value, verbose); |
| } |
| } |
| return status; |
| } |
| |
| JVMFlag::Error JVMFlag::doubleAtPut(JVMFlag* flag, double* value, JVMFlag::Flags origin) { |
| const char* name; |
| if (flag == NULL) return JVMFlag::INVALID_FLAG; |
| if (!flag->is_double()) return JVMFlag::WRONG_FORMAT; |
| name = flag->_name; |
| JVMFlag::Error check = apply_constraint_and_check_range_double(name, *value, !JVMFlagConstraintList::validated_after_ergo()); |
| if (check != JVMFlag::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; |
| } |
| |
| JVMFlag::Error JVMFlag::doubleAtPut(const char* name, size_t len, double* value, JVMFlag::Flags origin) { |
| JVMFlag* result = JVMFlag::find_flag(name, len); |
| return doubleAtPut(result, value, origin); |
| } |
| |
| JVMFlag::Error JVMFlagEx::doubleAtPut(JVMFlagsWithType flag, double value, JVMFlag::Flags origin) { |
| JVMFlag* faddr = address_of_flag(flag); |
| guarantee(faddr != NULL && faddr->is_double(), "wrong flag type"); |
| return JVMFlag::doubleAtPut(faddr, &value, origin); |
| } |
| |
| JVMFlag::Error JVMFlag::ccstrAt(const char* name, size_t len, ccstr* value, bool allow_locked, bool return_flag) { |
| JVMFlag* result = JVMFlag::find_flag(name, len, allow_locked, return_flag); |
| if (result == NULL) return JVMFlag::INVALID_FLAG; |
| if (!result->is_ccstr()) return JVMFlag::WRONG_FORMAT; |
| *value = result->get_ccstr(); |
| return JVMFlag::SUCCESS; |
| } |
| |
| JVMFlag::Error JVMFlag::ccstrAtPut(const char* name, size_t len, ccstr* value, JVMFlag::Flags origin) { |
| JVMFlag* result = JVMFlag::find_flag(name, len); |
| if (result == NULL) return JVMFlag::INVALID_FLAG; |
| if (!result->is_ccstr()) return JVMFlag::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); |
| } |
| JVMFlag::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; |
| } |
| |
| JVMFlag::Error JVMFlagEx::ccstrAtPut(JVMFlagsWithType flag, ccstr value, JVMFlag::Flags origin) { |
| JVMFlag* 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); |
| JVMFlag::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((*((JVMFlag**) void_a))->_name, (*((JVMFlag**) void_b))->_name); |
| } |
| } |
| |
| void JVMFlag::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 = JVMFlag::numFlags - 1; |
| |
| // Sort |
| JVMFlag** array = NEW_C_HEAP_ARRAY(JVMFlag*, length, mtArguments); |
| for (size_t i = 0; i < length; i++) { |
| array[i] = &flagTable[i]; |
| } |
| qsort(array, length, sizeof(JVMFlag*), 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(JVMFlag*, array); |
| } |
| |
| #ifndef PRODUCT |
| |
| void JVMFlag::verify() { |
| assert(Arguments::check_vm_args_consistency(), "Some flag settings conflict"); |
| } |
| |
| #endif // PRODUCT |
| |
| void JVMFlag::printFlags(outputStream* out, bool withComments, bool printRanges, bool skipDefaults) { |
| // Print the flags sorted by name |
| // Note: This method may be called before the thread structure is in place |
| // which means resource allocation cannot be used. Also, it may be |
| // called as part of error reporting, so handle native OOMs gracefully. |
| |
| // The last entry is the null entry. |
| const size_t length = JVMFlag::numFlags - 1; |
| |
| // Print |
| if (!printRanges) { |
| out->print_cr("[Global flags]"); |
| } else { |
| out->print_cr("[Global flags ranges]"); |
| } |
| |
| // Sort |
| JVMFlag** array = NEW_C_HEAP_ARRAY_RETURN_NULL(JVMFlag*, length, mtArguments); |
| if (array != NULL) { |
| for (size_t i = 0; i < length; i++) { |
| array[i] = &flagTable[i]; |
| } |
| qsort(array, length, sizeof(JVMFlag*), compare_flags); |
| |
| for (size_t i = 0; i < length; i++) { |
| if (array[i]->is_unlocked() && !(skipDefaults && array[i]->is_default())) { |
| array[i]->print_on(out, withComments, printRanges); |
| } |
| } |
| FREE_C_HEAP_ARRAY(JVMFlag*, array); |
| } else { |
| // OOM? Print unsorted. |
| for (size_t i = 0; i < length; i++) { |
| if (flagTable[i].is_unlocked() && !(skipDefaults && flagTable[i].is_default())) { |
| flagTable[i].print_on(out, withComments, printRanges); |
| } |
| } |
| } |
| } |
| |
| void JVMFlag::printError(bool verbose, const char* msg, ...) { |
| if (verbose) { |
| va_list listPointer; |
| va_start(listPointer, msg); |
| jio_vfprintf(defaultStream::error_stream(), msg, listPointer); |
| va_end(listPointer); |
| } |
| } |
| |
