truffle: src/share/vm/oops/symbol.cpp annotate

annotate src/share/vm/oops/symbol.cpp @ 6972:bd7a7ce2e264

6830717: replay of compilations would help with debugging Summary: When java process crashed in compiler thread, repeat the compilation process will help finding root cause. This is done with using SA dump application class data and replay data from core dump, then use debug version of jvm to recompile the problematic java method. Reviewed-by: kvn, twisti, sspitsyn Contributed-by: yumin.qi@oracle.com

author	minqi
date	Mon, 12 Nov 2012 14:03:53 -0800
parents	da91efe96a93
children	fcc9e7681d63

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
5979 fc9d8850ab8b 7150058: Allocate symbols from null boot loader to an arena for NMT coleenp parents: 2426 diff changeset	2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
0 a61af66fc99e Initial load duke parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load duke parents: diff changeset	4 *
a61af66fc99e Initial load duke parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load duke parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load duke parents: diff changeset	7 * published by the Free Software Foundation.
a61af66fc99e Initial load duke parents: diff changeset	8 *
a61af66fc99e Initial load duke parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load duke parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load duke parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load duke parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load duke parents: diff changeset	13 * accompanied this code).
a61af66fc99e Initial load duke parents: diff changeset	14 *
a61af66fc99e Initial load duke parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load duke parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load duke parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load duke parents: diff changeset	18 *
1552 c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1138 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1138 diff changeset	20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1138 diff changeset	21 * questions.
0 a61af66fc99e Initial load duke parents: diff changeset	22 *
a61af66fc99e Initial load duke parents: diff changeset	23 */
a61af66fc99e Initial load duke parents: diff changeset	24
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	25
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	26 #include "precompiled.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	27 #include "classfile/altHashing.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	28 #include "classfile/classLoaderData.hpp"
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	29 #include "oops/symbol.hpp"
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	30 #include "runtime/os.hpp"
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	31 #include "memory/allocation.inline.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	32 #include "memory/resourceArea.hpp"
0 a61af66fc99e Initial load duke parents: diff changeset	33
5979 fc9d8850ab8b 7150058: Allocate symbols from null boot loader to an arena for NMT coleenp parents: 2426 diff changeset	34 Symbol::Symbol(const u1* name, int length, int refcount) : _refcount(refcount), _length(length) {
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	35 _identity_hash = os::random();
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	36 for (int i = 0; i < _length; i++) {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	37 byte_at_put(i, name[i]);
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	38 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	39 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	40
5979 fc9d8850ab8b 7150058: Allocate symbols from null boot loader to an arena for NMT coleenp parents: 2426 diff changeset	41 void* Symbol::operator new(size_t sz, int len, TRAPS) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	42 int alloc_size = size(len)*HeapWordSize;
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 5979 diff changeset	43 address res = (address) AllocateHeap(alloc_size, mtSymbol);
5979 fc9d8850ab8b 7150058: Allocate symbols from null boot loader to an arena for NMT coleenp parents: 2426 diff changeset	44 return res;
fc9d8850ab8b 7150058: Allocate symbols from null boot loader to an arena for NMT coleenp parents: 2426 diff changeset	45 }
fc9d8850ab8b 7150058: Allocate symbols from null boot loader to an arena for NMT coleenp parents: 2426 diff changeset	46
fc9d8850ab8b 7150058: Allocate symbols from null boot loader to an arena for NMT coleenp parents: 2426 diff changeset	47 void* Symbol::operator new(size_t sz, int len, Arena* arena, TRAPS) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	48 int alloc_size = size(len)*HeapWordSize;
5979 fc9d8850ab8b 7150058: Allocate symbols from null boot loader to an arena for NMT coleenp parents: 2426 diff changeset	49 address res = (address)arena->Amalloc(alloc_size);
fc9d8850ab8b 7150058: Allocate symbols from null boot loader to an arena for NMT coleenp parents: 2426 diff changeset	50 return res;
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	51 }
1138 dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	52
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	53 void* Symbol::operator new(size_t sz, int len, ClassLoaderData* loader_data, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	54 address res;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	55 int alloc_size = size(len)*HeapWordSize;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	56 res = (address) Metaspace::allocate(loader_data, size(len), true,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	57 Metaspace::NonClassType, CHECK_NULL);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	58 return res;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	59 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	60
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	61 void Symbol::operator delete(void *p) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	62 assert(((Symbol*)p)->refcount() == 0, "should not call this");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	63 FreeHeap(p);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	64 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	65
1138 dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	66 // ------------------------------------------------------------------
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	67 // Symbol::equals
1138 dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	68 //
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	69 // Compares the symbol with a string of the given length.
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	70 bool Symbol::equals(const char* str, int len) const {
0 a61af66fc99e Initial load duke parents: diff changeset	71 int l = utf8_length();
a61af66fc99e Initial load duke parents: diff changeset	72 if (l != len) return false;
a61af66fc99e Initial load duke parents: diff changeset	73 while (l-- > 0) {
a61af66fc99e Initial load duke parents: diff changeset	74 if (str[l] != (char) byte_at(l))
a61af66fc99e Initial load duke parents: diff changeset	75 return false;
a61af66fc99e Initial load duke parents: diff changeset	76 }
a61af66fc99e Initial load duke parents: diff changeset	77 assert(l == -1, "we should be at the beginning");
a61af66fc99e Initial load duke parents: diff changeset	78 return true;
a61af66fc99e Initial load duke parents: diff changeset	79 }
a61af66fc99e Initial load duke parents: diff changeset	80
1138 dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	81
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	82 // ------------------------------------------------------------------
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	83 // Symbol::starts_with
1138 dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	84 //
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	85 // Tests if the symbol starts with the specified prefix of the given
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	86 // length.
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	87 bool Symbol::starts_with(const char* prefix, int len) const {
1138 dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	88 if (len > utf8_length()) return false;
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	89 while (len-- > 0) {
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	90 if (prefix[len] != (char) byte_at(len))
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	91 return false;
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	92 }
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	93 assert(len == -1, "we should be at the beginning");
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	94 return true;
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	95 }
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	96
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	97
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	98 // ------------------------------------------------------------------
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	99 // Symbol::index_of
1138 dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	100 //
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	101 // Finds if the given string is a substring of this symbol's utf8 bytes.
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	102 // Return -1 on failure. Otherwise return the first index where str occurs.
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	103 int Symbol::index_of_at(int i, const char* str, int len) const {
1138 dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	104 assert(i >= 0 && i <= utf8_length(), "oob");
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	105 if (len <= 0) return 0;
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	106 char first_char = str[0];
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	107 address bytes = (address) ((Symbol*)this)->base();
1138 dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	108 address limit = bytes + utf8_length() - len; // inclusive limit
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	109 address scan = bytes + i;
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	110 if (scan > limit)
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	111 return -1;
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 6197 diff changeset	112 for (; scan <= limit; scan++) {
1138 dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	113 scan = (address) memchr(scan, first_char, (limit + 1 - scan));
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	114 if (scan == NULL)
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	115 return -1; // not found
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	116 assert(scan >= bytes+i && scan <= limit, "scan oob");
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	117 if (memcmp(scan, str, len) == 0)
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	118 return (int)(scan - bytes);
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	119 }
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 6197 diff changeset	120 return -1;
1138 dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	121 }
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	122
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 222 diff changeset	123
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	124 char* Symbol::as_C_string(char* buf, int size) const {
0 a61af66fc99e Initial load duke parents: diff changeset	125 if (size > 0) {
a61af66fc99e Initial load duke parents: diff changeset	126 int len = MIN2(size - 1, utf8_length());
a61af66fc99e Initial load duke parents: diff changeset	127 for (int i = 0; i < len; i++) {
a61af66fc99e Initial load duke parents: diff changeset	128 buf[i] = byte_at(i);
a61af66fc99e Initial load duke parents: diff changeset	129 }
a61af66fc99e Initial load duke parents: diff changeset	130 buf[len] = '\0';
a61af66fc99e Initial load duke parents: diff changeset	131 }
a61af66fc99e Initial load duke parents: diff changeset	132 return buf;
a61af66fc99e Initial load duke parents: diff changeset	133 }
a61af66fc99e Initial load duke parents: diff changeset	134
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	135 char* Symbol::as_C_string() const {
0 a61af66fc99e Initial load duke parents: diff changeset	136 int len = utf8_length();
a61af66fc99e Initial load duke parents: diff changeset	137 char* str = NEW_RESOURCE_ARRAY(char, len + 1);
a61af66fc99e Initial load duke parents: diff changeset	138 return as_C_string(str, len + 1);
a61af66fc99e Initial load duke parents: diff changeset	139 }
a61af66fc99e Initial load duke parents: diff changeset	140
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	141 char* Symbol::as_C_string_flexible_buffer(Thread* t,
0 a61af66fc99e Initial load duke parents: diff changeset	142 char* buf, int size) const {
a61af66fc99e Initial load duke parents: diff changeset	143 char* str;
a61af66fc99e Initial load duke parents: diff changeset	144 int len = utf8_length();
a61af66fc99e Initial load duke parents: diff changeset	145 int buf_len = len + 1;
a61af66fc99e Initial load duke parents: diff changeset	146 if (size < buf_len) {
a61af66fc99e Initial load duke parents: diff changeset	147 str = NEW_RESOURCE_ARRAY(char, buf_len);
a61af66fc99e Initial load duke parents: diff changeset	148 } else {
a61af66fc99e Initial load duke parents: diff changeset	149 str = buf;
a61af66fc99e Initial load duke parents: diff changeset	150 }
a61af66fc99e Initial load duke parents: diff changeset	151 return as_C_string(str, buf_len);
a61af66fc99e Initial load duke parents: diff changeset	152 }
a61af66fc99e Initial load duke parents: diff changeset	153
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	154 void Symbol::print_symbol_on(outputStream* st) const {
0 a61af66fc99e Initial load duke parents: diff changeset	155 st = st ? st : tty;
6972 bd7a7ce2e264 6830717: replay of compilations would help with debugging minqi parents: 6725 diff changeset	156 st->print("%s", as_quoted_ascii());
bd7a7ce2e264 6830717: replay of compilations would help with debugging minqi parents: 6725 diff changeset	157 }
bd7a7ce2e264 6830717: replay of compilations would help with debugging minqi parents: 6725 diff changeset	158
bd7a7ce2e264 6830717: replay of compilations would help with debugging minqi parents: 6725 diff changeset	159 char* Symbol::as_quoted_ascii() const {
bd7a7ce2e264 6830717: replay of compilations would help with debugging minqi parents: 6725 diff changeset	160 const char ptr = (const char )&_body[0];
bd7a7ce2e264 6830717: replay of compilations would help with debugging minqi parents: 6725 diff changeset	161 int quoted_length = UTF8::quoted_ascii_length(ptr, utf8_length());
bd7a7ce2e264 6830717: replay of compilations would help with debugging minqi parents: 6725 diff changeset	162 char* result = NEW_RESOURCE_ARRAY(char, quoted_length + 1);
bd7a7ce2e264 6830717: replay of compilations would help with debugging minqi parents: 6725 diff changeset	163 UTF8::as_quoted_ascii(ptr, result, quoted_length + 1);
bd7a7ce2e264 6830717: replay of compilations would help with debugging minqi parents: 6725 diff changeset	164 return result;
0 a61af66fc99e Initial load duke parents: diff changeset	165 }
a61af66fc99e Initial load duke parents: diff changeset	166
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	167 jchar* Symbol::as_unicode(int& length) const {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	168 Symbol* this_ptr = (Symbol*)this;
0 a61af66fc99e Initial load duke parents: diff changeset	169 length = UTF8::unicode_length((char*)this_ptr->bytes(), utf8_length());
a61af66fc99e Initial load duke parents: diff changeset	170 jchar* result = NEW_RESOURCE_ARRAY(jchar, length);
a61af66fc99e Initial load duke parents: diff changeset	171 if (length > 0) {
a61af66fc99e Initial load duke parents: diff changeset	172 UTF8::convert_to_unicode((char*)this_ptr->bytes(), result, length);
a61af66fc99e Initial load duke parents: diff changeset	173 }
a61af66fc99e Initial load duke parents: diff changeset	174 return result;
a61af66fc99e Initial load duke parents: diff changeset	175 }
a61af66fc99e Initial load duke parents: diff changeset	176
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	177 const char* Symbol::as_klass_external_name(char* buf, int size) const {
0 a61af66fc99e Initial load duke parents: diff changeset	178 if (size > 0) {
a61af66fc99e Initial load duke parents: diff changeset	179 char* str = as_C_string(buf, size);
a61af66fc99e Initial load duke parents: diff changeset	180 int length = (int)strlen(str);
a61af66fc99e Initial load duke parents: diff changeset	181 // Turn all '/'s into '.'s (also for array klasses)
a61af66fc99e Initial load duke parents: diff changeset	182 for (int index = 0; index < length; index++) {
a61af66fc99e Initial load duke parents: diff changeset	183 if (str[index] == '/') {
a61af66fc99e Initial load duke parents: diff changeset	184 str[index] = '.';
a61af66fc99e Initial load duke parents: diff changeset	185 }
a61af66fc99e Initial load duke parents: diff changeset	186 }
a61af66fc99e Initial load duke parents: diff changeset	187 return str;
a61af66fc99e Initial load duke parents: diff changeset	188 } else {
a61af66fc99e Initial load duke parents: diff changeset	189 return buf;
a61af66fc99e Initial load duke parents: diff changeset	190 }
a61af66fc99e Initial load duke parents: diff changeset	191 }
a61af66fc99e Initial load duke parents: diff changeset	192
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	193 const char* Symbol::as_klass_external_name() const {
0 a61af66fc99e Initial load duke parents: diff changeset	194 char* str = as_C_string();
a61af66fc99e Initial load duke parents: diff changeset	195 int length = (int)strlen(str);
a61af66fc99e Initial load duke parents: diff changeset	196 // Turn all '/'s into '.'s (also for array klasses)
a61af66fc99e Initial load duke parents: diff changeset	197 for (int index = 0; index < length; index++) {
a61af66fc99e Initial load duke parents: diff changeset	198 if (str[index] == '/') {
a61af66fc99e Initial load duke parents: diff changeset	199 str[index] = '.';
a61af66fc99e Initial load duke parents: diff changeset	200 }
a61af66fc99e Initial load duke parents: diff changeset	201 }
a61af66fc99e Initial load duke parents: diff changeset	202 return str;
a61af66fc99e Initial load duke parents: diff changeset	203 }
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	204
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	205 // Alternate hashing for unbalanced symbol tables.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	206 unsigned int Symbol::new_hash(jint seed) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	207 ResourceMark rm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	208 // Use alternate hashing algorithm on this symbol.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	209 return AltHashing::murmur3_32(seed, (const jbyte*)as_C_string(), utf8_length());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	210 }
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	211
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	212 void Symbol::print_on(outputStream* st) const {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	213 if (this == NULL) {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	214 st->print_cr("NULL");
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	215 } else {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	216 st->print("Symbol: '");
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	217 print_symbol_on(st);
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	218 st->print("'");
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	219 st->print(" count %d", refcount());
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	220 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	221 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	222
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	223 // The print_value functions are present in all builds, to support the
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	224 // disassembler and error reporting.
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	225 void Symbol::print_value_on(outputStream* st) const {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	226 if (this == NULL) {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	227 st->print("NULL");
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	228 } else {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	229 st->print("'");
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	230 for (int i = 0; i < utf8_length(); i++) {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	231 st->print("%c", byte_at(i));
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	232 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	233 st->print("'");
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	234 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	235 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	236
5979 fc9d8850ab8b 7150058: Allocate symbols from null boot loader to an arena for NMT coleenp parents: 2426 diff changeset	237 // SymbolTable prints this in its statistics
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	238 NOT_PRODUCT(int Symbol::_total_count = 0;)

Mercurial > hg > truffle

annotate src/share/vm/oops/symbol.cpp @ 6972:bd7a7ce2e264