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annotate src/share/vm/compiler/compileLog.cpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
| author | stefank |
|---|---|
| date | Tue, 23 Nov 2010 13:22:55 -0800 |
| parents | c18cbe5936b8 |
| children | d2a62e0f25eb |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "ci/ciMethod.hpp" | |
| 27 #include "compiler/compileLog.hpp" | |
| 28 #include "memory/allocation.inline.hpp" | |
| 29 #include "oops/methodOop.hpp" | |
| 30 #include "runtime/mutexLocker.hpp" | |
| 31 #include "runtime/os.hpp" | |
| 0 | 32 |
| 33 CompileLog* CompileLog::_first = NULL; | |
| 34 | |
| 35 // ------------------------------------------------------------------ | |
| 36 // CompileLog::CompileLog | |
| 37 CompileLog::CompileLog(const char* file, FILE* fp, intx thread_id) | |
| 38 : _context(_context_buffer, sizeof(_context_buffer)) | |
| 39 { | |
| 40 initialize(new(ResourceObj::C_HEAP) fileStream(fp)); | |
| 41 _file = file; | |
| 42 _file_end = 0; | |
| 43 _thread_id = thread_id; | |
| 44 | |
| 45 _identities_limit = 0; | |
| 46 _identities_capacity = 400; | |
| 47 _identities = NEW_C_HEAP_ARRAY(char, _identities_capacity); | |
| 48 | |
| 49 // link into the global list | |
| 50 { MutexLocker locker(CompileTaskAlloc_lock); | |
| 51 _next = _first; | |
| 52 _first = this; | |
| 53 } | |
| 54 } | |
| 55 | |
| 56 CompileLog::~CompileLog() { | |
| 57 delete _out; | |
| 58 _out = NULL; | |
| 59 FREE_C_HEAP_ARRAY(char, _identities); | |
| 60 } | |
| 61 | |
| 62 | |
| 63 // Advance kind up to a null or space, return this tail. | |
| 64 // Make sure kind is null-terminated, not space-terminated. | |
| 65 // Use the buffer if necessary. | |
| 66 static const char* split_attrs(const char* &kind, char* buffer) { | |
| 67 const char* attrs = strchr(kind, ' '); | |
| 68 // Tease apart the first word from the rest: | |
| 69 if (attrs == NULL) { | |
| 70 return ""; // no attrs, no split | |
| 71 } else if (kind == buffer) { | |
| 72 ((char*) attrs)[-1] = 0; | |
| 73 return attrs; | |
| 74 } else { | |
| 75 // park it in the buffer, so we can put a null on the end | |
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76 assert(!(kind >= buffer && kind < buffer+100), "not obviously in buffer"); |
| 0 | 77 int klen = attrs - kind; |
| 78 strncpy(buffer, kind, klen); | |
| 79 buffer[klen] = 0; | |
| 80 kind = buffer; // return by reference | |
| 81 return attrs; | |
| 82 } | |
| 83 } | |
| 84 | |
| 85 // see_tag, pop_tag: Override the default do-nothing methods on xmlStream. | |
| 86 // These methods provide a hook for managing the the extra context markup. | |
| 87 void CompileLog::see_tag(const char* tag, bool push) { | |
| 88 if (_context.size() > 0 && _out != NULL) { | |
| 89 _out->write(_context.base(), _context.size()); | |
| 90 _context.reset(); | |
| 91 } | |
| 92 xmlStream::see_tag(tag, push); | |
| 93 } | |
| 94 void CompileLog::pop_tag(const char* tag) { | |
| 95 _context.reset(); // toss any context info. | |
| 96 xmlStream::pop_tag(tag); | |
| 97 } | |
| 98 | |
| 99 | |
| 100 // ------------------------------------------------------------------ | |
| 101 // CompileLog::identify | |
| 102 int CompileLog::identify(ciObject* obj) { | |
| 103 if (obj == NULL) return 0; | |
| 104 int id = obj->ident(); | |
| 105 if (id < 0) return id; | |
| 106 // If it has already been identified, just return the id. | |
| 107 if (id < _identities_limit && _identities[id] != 0) return id; | |
| 108 // Lengthen the array, if necessary. | |
| 109 if (id >= _identities_capacity) { | |
| 110 int new_cap = _identities_capacity * 2; | |
| 111 if (new_cap <= id) new_cap = id + 100; | |
| 112 _identities = REALLOC_C_HEAP_ARRAY(char, _identities, new_cap); | |
| 113 _identities_capacity = new_cap; | |
| 114 } | |
| 115 while (id >= _identities_limit) { | |
| 116 _identities[_identities_limit++] = 0; | |
| 117 } | |
| 118 assert(id < _identities_limit, "oob"); | |
| 119 // Mark this id as processed. | |
| 120 // (Be sure to do this before any recursive calls to identify.) | |
| 121 _identities[id] = 1; // mark | |
| 122 | |
| 123 // Now, print the object's identity once, in detail. | |
| 124 if (obj->is_klass()) { | |
| 125 ciKlass* klass = obj->as_klass(); | |
| 126 begin_elem("klass id='%d'", id); | |
| 127 name(klass->name()); | |
| 128 if (!klass->is_loaded()) { | |
| 129 print(" unloaded='1'"); | |
| 130 } else { | |
| 131 print(" flags='%d'", klass->modifier_flags()); | |
| 132 } | |
| 133 end_elem(); | |
| 134 } else if (obj->is_method()) { | |
| 135 ciMethod* method = obj->as_method(); | |
| 136 ciSignature* sig = method->signature(); | |
| 137 // Pre-identify items that we will need! | |
| 138 identify(sig->return_type()); | |
| 139 for (int i = 0; i < sig->count(); i++) { | |
| 140 identify(sig->type_at(i)); | |
| 141 } | |
| 142 begin_elem("method id='%d' holder='%d'", | |
| 143 id, identify(method->holder())); | |
| 144 name(method->name()); | |
| 145 print(" return='%d'", identify(sig->return_type())); | |
| 146 if (sig->count() > 0) { | |
| 147 print(" arguments='"); | |
| 148 for (int i = 0; i < sig->count(); i++) { | |
| 149 print((i == 0) ? "%d" : " %d", identify(sig->type_at(i))); | |
| 150 } | |
| 151 print("'"); | |
| 152 } | |
| 153 if (!method->is_loaded()) { | |
| 154 print(" unloaded='1'"); | |
| 155 } else { | |
| 156 print(" flags='%d'", (jchar) method->flags().as_int()); | |
| 157 // output a few metrics | |
| 158 print(" bytes='%d'", method->code_size()); | |
| 159 method->log_nmethod_identity(this); | |
| 160 //print(" count='%d'", method->invocation_count()); | |
| 161 //int bec = method->backedge_count(); | |
| 162 //if (bec != 0) print(" backedge_count='%d'", bec); | |
| 163 print(" iicount='%d'", method->interpreter_invocation_count()); | |
| 164 } | |
| 165 end_elem(); | |
| 166 } else if (obj->is_symbol()) { | |
| 167 begin_elem("symbol id='%d'", id); | |
| 168 name(obj->as_symbol()); | |
| 169 end_elem(); | |
| 170 } else if (obj->is_null_object()) { | |
| 171 elem("null_object id='%d'", id); | |
| 172 } else if (obj->is_type()) { | |
| 173 BasicType type = obj->as_type()->basic_type(); | |
| 174 elem("type id='%d' name='%s'", id, type2name(type)); | |
| 175 } else { | |
| 176 // Should not happen. | |
| 177 elem("unknown id='%d'", id); | |
| 178 } | |
| 179 return id; | |
| 180 } | |
| 181 | |
| 182 void CompileLog::name(ciSymbol* name) { | |
| 183 if (name == NULL) return; | |
| 184 print(" name='"); | |
| 185 name->print_symbol_on(text()); // handles quoting conventions | |
| 186 print("'"); | |
| 187 } | |
| 188 | |
| 189 | |
| 190 // ------------------------------------------------------------------ | |
| 191 // CompileLog::clear_identities | |
| 192 // Forget which identities have been printed. | |
| 193 void CompileLog::clear_identities() { | |
| 194 _identities_limit = 0; | |
| 195 } | |
| 196 | |
| 197 // ------------------------------------------------------------------ | |
| 198 // CompileLog::finish_log_on_error | |
| 199 // | |
| 200 // Note: This function is called after fatal error, avoid unnecessary memory | |
| 201 // or stack allocation, use only async-safe functions. It's possible JVM is | |
| 202 // only partially initialized. | |
| 203 void CompileLog::finish_log_on_error(outputStream* file, char* buf, int buflen) { | |
| 204 static bool called_exit = false; | |
| 205 if (called_exit) return; | |
| 206 called_exit = true; | |
| 207 | |
| 208 for (CompileLog* log = _first; log != NULL; log = log->_next) { | |
| 209 log->flush(); | |
| 210 const char* partial_file = log->file(); | |
| 211 int partial_fd = open(partial_file, O_RDONLY); | |
| 212 if (partial_fd != -1) { | |
| 213 // print/print_cr may need to allocate large stack buffer to format | |
| 214 // strings, here we use snprintf() and print_raw() instead. | |
| 215 file->print_raw("<compilation_log thread='"); | |
| 216 jio_snprintf(buf, buflen, UINTX_FORMAT, log->thread_id()); | |
| 217 file->print_raw(buf); | |
| 218 file->print_raw_cr("'>"); | |
| 219 | |
| 220 size_t nr; // number read into buf from partial log | |
| 221 // Copy data up to the end of the last <event> element: | |
| 222 julong to_read = log->_file_end; | |
| 223 while (to_read > 0) { | |
| 224 if (to_read < (julong)buflen) | |
| 225 nr = (size_t)to_read; | |
| 226 else nr = buflen; | |
| 227 nr = read(partial_fd, buf, (int)nr); | |
| 228 if (nr <= 0) break; | |
| 229 to_read -= (julong)nr; | |
| 230 file->write(buf, nr); | |
| 231 } | |
| 232 | |
| 233 // Copy any remaining data inside a quote: | |
| 234 bool saw_slop = false; | |
| 235 int end_cdata = 0; // state machine [0..2] watching for too many "]]" | |
| 236 while ((nr = read(partial_fd, buf, buflen)) > 0) { | |
| 237 if (!saw_slop) { | |
| 238 file->print_raw_cr("<fragment>"); | |
| 239 file->print_raw_cr("<![CDATA["); | |
| 240 saw_slop = true; | |
| 241 } | |
| 242 // The rest of this loop amounts to a simple copy operation: | |
| 243 // { file->write(buf, nr); } | |
| 244 // However, it must sometimes output the buffer in parts, | |
| 245 // in case there is a CDATA quote embedded in the fragment. | |
| 246 const char* bufp; // pointer into buf | |
| 247 size_t nw; // number written in each pass of the following loop: | |
| 248 for (bufp = buf; nr > 0; nr -= nw, bufp += nw) { | |
| 249 // Write up to any problematic CDATA delimiter (usually all of nr). | |
| 250 for (nw = 0; nw < nr; nw++) { | |
| 251 // First, scan ahead into the buf, checking the state machine. | |
| 252 switch (bufp[nw]) { | |
| 253 case ']': | |
| 254 if (end_cdata < 2) end_cdata += 1; // saturating counter | |
| 255 continue; // keep scanning | |
| 256 case '>': | |
| 257 if (end_cdata == 2) break; // found CDATA delimiter! | |
| 258 // else fall through: | |
| 259 default: | |
| 260 end_cdata = 0; | |
| 261 continue; // keep scanning | |
| 262 } | |
| 263 // If we get here, nw is pointing at a bad '>'. | |
| 264 // It is very rare for this to happen. | |
| 265 // However, this code has been tested by introducing | |
| 266 // CDATA sequences into the compilation log. | |
| 267 break; | |
| 268 } | |
| 269 // Now nw is the number of characters to write, usually == nr. | |
| 270 file->write(bufp, nw); | |
| 271 if (nw < nr) { | |
| 272 // We are about to go around the loop again. | |
| 273 // But first, disrupt the ]]> by closing and reopening the quote. | |
| 274 file->print_raw("]]><![CDATA["); | |
| 275 end_cdata = 0; // reset state machine | |
| 276 } | |
| 277 } | |
| 278 } | |
| 279 if (saw_slop) { | |
| 280 file->print_raw_cr("]]>"); | |
| 281 file->print_raw_cr("</fragment>"); | |
| 282 } | |
| 283 file->print_raw_cr("</compilation_log>"); | |
| 284 close(partial_fd); | |
| 285 unlink(partial_file); | |
| 286 } | |
| 287 } | |
| 288 } | |
| 289 | |
| 290 // ------------------------------------------------------------------ | |
| 291 // CompileLog::finish_log | |
| 292 // | |
| 293 // Called during normal shutdown. For now, any clean-up needed in normal | |
| 294 // shutdown is also needed in VM abort, so is covered by finish_log_on_error(). | |
| 295 // Just allocate a buffer and call finish_log_on_error(). | |
| 296 void CompileLog::finish_log(outputStream* file) { | |
| 297 char buf[4 * K]; | |
| 298 finish_log_on_error(file, buf, sizeof(buf)); | |
| 299 } |