Mercurial > hg > truffle
view src/share/vm/runtime/globals.cpp @ 19344:83b35b97959c
Merge with f7b121b82697c3c3adcce9f9ea3fcc241c2eb968
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
---|---|
date | Thu, 12 Feb 2015 16:57:30 -0800 |
parents | 52b4284cb496 |
children | 7848fc12602b |
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/* * Copyright (c) 1997, 2014, 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 "memory/allocation.inline.hpp" #include "oops/oop.inline.hpp" #include "runtime/arguments.hpp" #include "runtime/globals.hpp" #include "runtime/globals_extension.hpp" #include "utilities/ostream.hpp" #include "utilities/macros.hpp" #include "utilities/top.hpp" #include "trace/tracing.hpp" #if INCLUDE_ALL_GCS #include "gc_implementation/g1/g1_globals.hpp" #endif // INCLUDE_ALL_GCS #ifdef COMPILER1 #include "c1/c1_globals.hpp" #endif #ifdef GRAAL #include "graal/graalGlobals.hpp" #endif #ifdef COMPILER2 #include "opto/c2_globals.hpp" #endif #ifdef SHARK #include "shark/shark_globals.hpp" #endif PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC RUNTIME_FLAGS(MATERIALIZE_DEVELOPER_FLAG, MATERIALIZE_PD_DEVELOPER_FLAG, \ MATERIALIZE_PRODUCT_FLAG, MATERIALIZE_PD_PRODUCT_FLAG, \ MATERIALIZE_DIAGNOSTIC_FLAG, MATERIALIZE_EXPERIMENTAL_FLAG, \ MATERIALIZE_NOTPRODUCT_FLAG, \ MATERIALIZE_MANAGEABLE_FLAG, MATERIALIZE_PRODUCT_RW_FLAG, \ MATERIALIZE_LP64_PRODUCT_FLAG) RUNTIME_OS_FLAGS(MATERIALIZE_DEVELOPER_FLAG, MATERIALIZE_PD_DEVELOPER_FLAG, \ MATERIALIZE_PRODUCT_FLAG, MATERIALIZE_PD_PRODUCT_FLAG, \ MATERIALIZE_DIAGNOSTIC_FLAG, MATERIALIZE_NOTPRODUCT_FLAG) ARCH_FLAGS(MATERIALIZE_DEVELOPER_FLAG, MATERIALIZE_PRODUCT_FLAG, \ MATERIALIZE_DIAGNOSTIC_FLAG, MATERIALIZE_EXPERIMENTAL_FLAG, \ MATERIALIZE_NOTPRODUCT_FLAG) MATERIALIZE_FLAGS_EXT static bool is_product_build() { #ifdef PRODUCT return true; #else return false; #endif } void Flag::check_writable() { if (is_constant_in_binary()) { fatal(err_msg("flag is constant: %s", _name)); } } bool Flag::is_bool() const { return strcmp(_type, "bool") == 0; } bool Flag::get_bool() const { return *((bool*) _addr); } void Flag::set_bool(bool value) { check_writable(); *((bool*) _addr) = value; } bool Flag::is_intx() const { return strcmp(_type, "intx") == 0; } intx Flag::get_intx() const { return *((intx*) _addr); } void Flag::set_intx(intx value) { check_writable(); *((intx*) _addr) = value; } bool Flag::is_uintx() const { return strcmp(_type, "uintx") == 0; } uintx Flag::get_uintx() const { return *((uintx*) _addr); } void Flag::set_uintx(uintx value) { check_writable(); *((uintx*) _addr) = value; } bool Flag::is_uint64_t() const { return strcmp(_type, "uint64_t") == 0; } uint64_t Flag::get_uint64_t() const { return *((uint64_t*) _addr); } void Flag::set_uint64_t(uint64_t value) { check_writable(); *((uint64_t*) _addr) = value; } bool Flag::is_double() const { return strcmp(_type, "double") == 0; } double Flag::get_double() const { return *((double*) _addr); } void Flag::set_double(double value) { check_writable(); *((double*) _addr) = value; } 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); } void Flag::set_ccstr(ccstr value) { check_writable(); *((ccstr*) _addr) = value; } 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 = Flags((_flags & ~VALUE_ORIGIN_MASK) | origin); } bool Flag::is_default() { return (get_origin() == DEFAULT); } bool Flag::is_ergonomic() { return (get_origin() == ERGONOMIC); } bool Flag::is_command_line() { return (get_origin() == 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(); } // Get custom message for this locked flag, or return NULL if // none is available. void 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", _name); return; } if (is_experimental() && !is_unlocked()) { jio_snprintf(buf, buflen, "Error: VM option '%s' is experimental and must be enabled via -XX:+UnlockExperimentalVMOptions.\n", _name); return; } 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; } 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; } 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(); } // Length of format string (e.g. "%.1234s") for printing ccstr below #define FORMAT_BUFFER_LEN 16 PRAGMA_FORMAT_NONLITERAL_IGNORED_EXTERNAL void Flag::print_on(outputStream* st, bool withComments) { // Don't print notproduct and develop flags in a product build. if (is_constant_in_binary()) { return; } st->print("%9s %-40s %c= ", _type, _name, (!is_default() ? ':' : ' ')); if (is_bool()) { st->print("%-16s", get_bool() ? "true" : "false"); } if (is_intx()) { st->print("%-16ld", get_intx()); } if (is_uintx()) { st->print("%-16lu", get_uintx()); } if (is_uint64_t()) { st->print("%-16lu", get_uint64_t()); } if (is_double()) { st->print("%-16f", get_double()); } if (is_ccstr()) { const char* cp = get_ccstr(); if (cp != NULL) { const char* eol; while ((eol = strchr(cp, '\n')) != NULL) { char format_buffer[FORMAT_BUFFER_LEN]; size_t llen = pointer_delta(eol, cp, sizeof(char)); jio_snprintf(format_buffer, FORMAT_BUFFER_LEN, "%%." SIZE_FORMAT "s", llen); PRAGMA_DIAG_PUSH PRAGMA_FORMAT_NONLITERAL_IGNORED_INTERNAL st->print(format_buffer, cp); PRAGMA_DIAG_POP st->cr(); cp = eol+1; st->print("%5s %-35s += ", "", _name); } st->print("%-16s", cp); } else st->print("%-16s", ""); } st->print("%-20s", " "); print_kind(st); if (withComments) { #ifndef PRODUCT st->print("%s", _doc); #endif } st->cr(); } void Flag::print_kind(outputStream* st) { struct Data { int flag; const char* name; }; Data data[] = { { KIND_C1, "C1" }, { KIND_GRAAL, "Graal" }, { KIND_C2, "C2" }, { KIND_ARCH, "ARCH" }, { KIND_SHARK, "SHARK" }, { 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) { st->print("{"); bool is_first = true; 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 { st->print(" "); } st->print_raw(d.name); } } st->print("}"); } } void Flag::print_as_flag(outputStream* st) { if (is_bool()) { st->print("-XX:%s%s", get_bool() ? "+" : "-", _name); } 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_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(); } } // 4991491 do not "optimize out" the was_set false values: omitting them // tickles a Microsoft compiler bug causing flagTable to be malformed #define NAME(name) NOT_PRODUCT(&name) PRODUCT_ONLY(&CONST_##name) #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_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), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_DEVELOP) }, #define RUNTIME_PD_DEVELOP_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), NAME(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), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | 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_DEVELOP_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), NAME(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), NAME(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), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C1 | Flag::KIND_NOT_PRODUCT) }, #define GRAAL_PRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_GRAAL | Flag::KIND_PRODUCT) }, #define GRAAL_PD_PRODUCT_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_GRAAL | Flag::KIND_PRODUCT | Flag::KIND_PLATFORM_DEPENDENT) }, #define GRAAL_DEVELOP_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_GRAAL | Flag::KIND_DEVELOP) }, #define GRAAL_PD_DEVELOP_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_GRAAL | Flag::KIND_DEVELOP | Flag::KIND_PLATFORM_DEPENDENT) }, #define GRAAL_NOTPRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_GRAAL | 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_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), NAME(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), NAME(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), NAME(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), NAME(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), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_ARCH | Flag::KIND_NOT_PRODUCT) }, #define SHARK_PRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_SHARK | Flag::KIND_PRODUCT) }, #define SHARK_PD_PRODUCT_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_SHARK | Flag::KIND_PRODUCT | Flag::KIND_PLATFORM_DEPENDENT) }, #define SHARK_DIAGNOSTIC_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_SHARK | Flag::KIND_DIAGNOSTIC) }, #define SHARK_DEVELOP_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_SHARK | Flag::KIND_DEVELOP) }, #define SHARK_PD_DEVELOP_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_SHARK | Flag::KIND_DEVELOP | Flag::KIND_PLATFORM_DEPENDENT) }, #define SHARK_NOTPRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_SHARK | Flag::KIND_NOT_PRODUCT) }, static Flag flagTable[] = { RUNTIME_FLAGS(RUNTIME_DEVELOP_FLAG_STRUCT, RUNTIME_PD_DEVELOP_FLAG_STRUCT, RUNTIME_PRODUCT_FLAG_STRUCT, RUNTIME_PD_PRODUCT_FLAG_STRUCT, RUNTIME_DIAGNOSTIC_FLAG_STRUCT, RUNTIME_EXPERIMENTAL_FLAG_STRUCT, RUNTIME_NOTPRODUCT_FLAG_STRUCT, RUNTIME_MANAGEABLE_FLAG_STRUCT, RUNTIME_PRODUCT_RW_FLAG_STRUCT, RUNTIME_LP64_PRODUCT_FLAG_STRUCT) RUNTIME_OS_FLAGS(RUNTIME_DEVELOP_FLAG_STRUCT, RUNTIME_PD_DEVELOP_FLAG_STRUCT, RUNTIME_PRODUCT_FLAG_STRUCT, RUNTIME_PD_PRODUCT_FLAG_STRUCT, RUNTIME_DIAGNOSTIC_FLAG_STRUCT, RUNTIME_NOTPRODUCT_FLAG_STRUCT) #if INCLUDE_ALL_GCS G1_FLAGS(RUNTIME_DEVELOP_FLAG_STRUCT, RUNTIME_PD_DEVELOP_FLAG_STRUCT, RUNTIME_PRODUCT_FLAG_STRUCT, RUNTIME_PD_PRODUCT_FLAG_STRUCT, RUNTIME_DIAGNOSTIC_FLAG_STRUCT, RUNTIME_EXPERIMENTAL_FLAG_STRUCT, RUNTIME_NOTPRODUCT_FLAG_STRUCT, RUNTIME_MANAGEABLE_FLAG_STRUCT, RUNTIME_PRODUCT_RW_FLAG_STRUCT) #endif // INCLUDE_ALL_GCS #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_NOTPRODUCT_FLAG_STRUCT) #endif #ifdef GRAAL GRAAL_FLAGS(GRAAL_DEVELOP_FLAG_STRUCT, GRAAL_PD_DEVELOP_FLAG_STRUCT, GRAAL_PRODUCT_FLAG_STRUCT, GRAAL_PD_PRODUCT_FLAG_STRUCT, GRAAL_NOTPRODUCT_FLAG_STRUCT) #endif #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_EXPERIMENTAL_FLAG_STRUCT, C2_NOTPRODUCT_FLAG_STRUCT) #endif #ifdef SHARK SHARK_FLAGS(SHARK_DEVELOP_FLAG_STRUCT, SHARK_PD_DEVELOP_FLAG_STRUCT, SHARK_PRODUCT_FLAG_STRUCT, SHARK_PD_PRODUCT_FLAG_STRUCT, SHARK_DIAGNOSTIC_FLAG_STRUCT, SHARK_NOTPRODUCT_FLAG_STRUCT) #endif ARCH_FLAGS(ARCH_DEVELOP_FLAG_STRUCT, ARCH_PRODUCT_FLAG_STRUCT, ARCH_DIAGNOSTIC_FLAG_STRUCT, ARCH_EXPERIMENTAL_FLAG_STRUCT, ARCH_NOTPRODUCT_FLAG_STRUCT) FLAGTABLE_EXT {0, NULL, NULL} }; Flag* Flag::flags = flagTable; size_t Flag::numFlags = (sizeof(flagTable) / sizeof(Flag)); inline bool str_equal(const char* s, const char* q, size_t len) { // s is null terminated, q is not! if (strlen(s) != (unsigned int) len) return false; return strncmp(s, 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, 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 == true ? 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; } // Compute string similarity based on Dice's coefficient static float str_similar(const char* str1, const char* str2, size_t len2) { int len1 = (int) strlen(str1); int total = len1 + (int) len2; int hit = 0; for (int i = 0; i < len1 -1; ++i) { for (int j = 0; j < (int) len2 -1; ++j) { if ((str1[i] == str2[j]) && (str1[i+1] == str2[j+1])) { ++hit; break; } } } return 2.0f * (float) hit / (float) total; } 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 = str_similar(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; } 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_old_value(old_value); e.set_new_value(new_value); e.set_origin(origin); e.commit(); } bool CommandLineFlags::boolAt(char* name, size_t len, bool* value) { Flag* result = Flag::find_flag(name, len); if (result == NULL) return false; if (!result->is_bool()) return false; *value = result->get_bool(); return true; } bool CommandLineFlags::boolAtPut(char* name, size_t len, bool* value, Flag::Flags origin) { Flag* result = Flag::find_flag(name, len); if (result == NULL) return false; if (!result->is_bool()) return false; bool old_value = result->get_bool(); trace_flag_changed<EventBooleanFlagChanged, bool>(name, old_value, *value, origin); result->set_bool(*value); *value = old_value; result->set_origin(origin); return true; } void CommandLineFlagsEx::boolAtPut(CommandLineFlagWithType flag, bool value, Flag::Flags origin) { Flag* faddr = address_of_flag(flag); guarantee(faddr != NULL && faddr->is_bool(), "wrong flag type"); trace_flag_changed<EventBooleanFlagChanged, bool>(faddr->_name, faddr->get_bool(), value, origin); faddr->set_bool(value); faddr->set_origin(origin); } bool CommandLineFlags::intxAt(char* name, size_t len, intx* value) { Flag* result = Flag::find_flag(name, len); if (result == NULL) return false; if (!result->is_intx()) return false; *value = result->get_intx(); return true; } bool CommandLineFlags::intxAtPut(char* name, size_t len, intx* value, Flag::Flags origin) { Flag* result = Flag::find_flag(name, len); if (result == NULL) return false; if (!result->is_intx()) return false; intx old_value = result->get_intx(); trace_flag_changed<EventLongFlagChanged, s8>(name, old_value, *value, origin); result->set_intx(*value); *value = old_value; result->set_origin(origin); return true; } void CommandLineFlagsEx::intxAtPut(CommandLineFlagWithType flag, intx value, Flag::Flags origin) { Flag* faddr = address_of_flag(flag); guarantee(faddr != NULL && faddr->is_intx(), "wrong flag type"); trace_flag_changed<EventLongFlagChanged, s8>(faddr->_name, faddr->get_intx(), value, origin); faddr->set_intx(value); faddr->set_origin(origin); } bool CommandLineFlags::uintxAt(char* name, size_t len, uintx* value) { Flag* result = Flag::find_flag(name, len); if (result == NULL) return false; if (!result->is_uintx()) return false; *value = result->get_uintx(); return true; } bool CommandLineFlags::uintxAtPut(char* name, size_t len, uintx* value, Flag::Flags origin) { Flag* result = Flag::find_flag(name, len); if (result == NULL) return false; if (!result->is_uintx()) return false; uintx old_value = result->get_uintx(); trace_flag_changed<EventUnsignedLongFlagChanged, u8>(name, old_value, *value, origin); result->set_uintx(*value); *value = old_value; result->set_origin(origin); return true; } void CommandLineFlagsEx::uintxAtPut(CommandLineFlagWithType flag, uintx value, Flag::Flags origin) { Flag* faddr = address_of_flag(flag); guarantee(faddr != NULL && faddr->is_uintx(), "wrong flag type"); trace_flag_changed<EventUnsignedLongFlagChanged, u8>(faddr->_name, faddr->get_uintx(), value, origin); faddr->set_uintx(value); faddr->set_origin(origin); } bool CommandLineFlags::uint64_tAt(char* name, size_t len, uint64_t* value) { Flag* result = Flag::find_flag(name, len); if (result == NULL) return false; if (!result->is_uint64_t()) return false; *value = result->get_uint64_t(); return true; } bool CommandLineFlags::uint64_tAtPut(char* name, size_t len, uint64_t* value, Flag::Flags origin) { Flag* result = Flag::find_flag(name, len); if (result == NULL) return false; if (!result->is_uint64_t()) return false; uint64_t old_value = result->get_uint64_t(); trace_flag_changed<EventUnsignedLongFlagChanged, u8>(name, old_value, *value, origin); result->set_uint64_t(*value); *value = old_value; result->set_origin(origin); return true; } void 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"); trace_flag_changed<EventUnsignedLongFlagChanged, u8>(faddr->_name, faddr->get_uint64_t(), value, origin); faddr->set_uint64_t(value); faddr->set_origin(origin); } bool CommandLineFlags::doubleAt(char* name, size_t len, double* value) { Flag* result = Flag::find_flag(name, len); if (result == NULL) return false; if (!result->is_double()) return false; *value = result->get_double(); return true; } bool CommandLineFlags::doubleAtPut(char* name, size_t len, double* value, Flag::Flags origin) { Flag* result = Flag::find_flag(name, len); if (result == NULL) return false; if (!result->is_double()) return false; double old_value = result->get_double(); trace_flag_changed<EventDoubleFlagChanged, double>(name, old_value, *value, origin); result->set_double(*value); *value = old_value; result->set_origin(origin); return true; } void CommandLineFlagsEx::doubleAtPut(CommandLineFlagWithType flag, double value, Flag::Flags origin) { Flag* faddr = address_of_flag(flag); guarantee(faddr != NULL && faddr->is_double(), "wrong flag type"); trace_flag_changed<EventDoubleFlagChanged, double>(faddr->_name, faddr->get_double(), value, origin); faddr->set_double(value); faddr->set_origin(origin); } bool CommandLineFlags::ccstrAt(char* name, size_t len, ccstr* value) { Flag* result = Flag::find_flag(name, len); if (result == NULL) return false; if (!result->is_ccstr()) return false; *value = result->get_ccstr(); return true; } // Contract: Flag will make private copy of the incoming value. // Outgoing value is always malloc-ed, and caller MUST call free. bool CommandLineFlags::ccstrAtPut(char* name, size_t len, ccstr* value, Flag::Flags origin) { Flag* result = Flag::find_flag(name, len); if (result == NULL) return false; if (!result->is_ccstr()) return false; 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 = NEW_C_HEAP_ARRAY(char, strlen(*value)+1, mtInternal); strcpy(new_value, *value); } result->set_ccstr(new_value); if (result->is_default() && old_value != NULL) { // Prior value is NOT heap allocated, but was a literal constant. char* old_value_to_free = NEW_C_HEAP_ARRAY(char, strlen(old_value)+1, mtInternal); strcpy(old_value_to_free, old_value); old_value = old_value_to_free; } *value = old_value; result->set_origin(origin); return true; } // Contract: Flag will make private copy of the incoming value. void 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 = NEW_C_HEAP_ARRAY(char, strlen(value)+1, mtInternal); strcpy(new_value, value); 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, mtInternal); } faddr->set_origin(origin); } 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, mtInternal); 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, mtInternal); } #ifndef PRODUCT void CommandLineFlags::verify() { assert(Arguments::check_vm_args_consistency(), "Some flag settings conflict"); } #endif // PRODUCT void CommandLineFlags::printFlags(outputStream* out, bool withComments) { // 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, mtInternal); for (size_t i = 0; i < length; i++) { array[i] = &flagTable[i]; } qsort(array, length, sizeof(Flag*), compare_flags); // Print out->print_cr("[Global flags]"); for (size_t i = 0; i < length; i++) { if (array[i]->is_unlocked()) { array[i]->print_on(out, withComments); } } FREE_C_HEAP_ARRAY(Flag*, array, mtInternal); }