Mercurial > hg > graal-compiler
annotate src/share/vm/compiler/compileLog.cpp @ 12869:d9043b88eeb3
8024067: Missing replace_in_map() calls following null checks
Summary: add replace_in_map() calls following some null checks in type checks
Reviewed-by: kvn
author | roland |
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date | Thu, 03 Oct 2013 10:55:07 +0200 |
parents | 813f26e34135 |
children | de6a9e811145 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2002, 2012, 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" | |
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29 #include "oops/method.hpp" |
1972 | 30 #include "runtime/mutexLocker.hpp" |
31 #include "runtime/os.hpp" | |
0 | 32 |
33 CompileLog* CompileLog::_first = NULL; | |
34 | |
35 // ------------------------------------------------------------------ | |
36 // CompileLog::CompileLog | |
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37 CompileLog::CompileLog(const char* file_name, FILE* fp, intx thread_id) |
0 | 38 : _context(_context_buffer, sizeof(_context_buffer)) |
39 { | |
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40 initialize(new(ResourceObj::C_HEAP, mtCompiler) fileStream(fp, true)); |
0 | 41 _file_end = 0; |
42 _thread_id = thread_id; | |
43 | |
44 _identities_limit = 0; | |
45 _identities_capacity = 400; | |
6197 | 46 _identities = NEW_C_HEAP_ARRAY(char, _identities_capacity, mtCompiler); |
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47 _file = NEW_C_HEAP_ARRAY(char, strlen(file_name)+1, mtCompiler); |
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48 strcpy((char*)_file, file_name); |
0 | 49 |
50 // link into the global list | |
51 { MutexLocker locker(CompileTaskAlloc_lock); | |
52 _next = _first; | |
53 _first = this; | |
54 } | |
55 } | |
56 | |
57 CompileLog::~CompileLog() { | |
58 delete _out; | |
59 _out = NULL; | |
6197 | 60 FREE_C_HEAP_ARRAY(char, _identities, mtCompiler); |
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61 FREE_C_HEAP_ARRAY(char, _file, mtCompiler); |
0 | 62 } |
63 | |
64 | |
65 // see_tag, pop_tag: Override the default do-nothing methods on xmlStream. | |
66 // These methods provide a hook for managing the the extra context markup. | |
67 void CompileLog::see_tag(const char* tag, bool push) { | |
68 if (_context.size() > 0 && _out != NULL) { | |
69 _out->write(_context.base(), _context.size()); | |
70 _context.reset(); | |
71 } | |
72 xmlStream::see_tag(tag, push); | |
73 } | |
74 void CompileLog::pop_tag(const char* tag) { | |
75 _context.reset(); // toss any context info. | |
76 xmlStream::pop_tag(tag); | |
77 } | |
78 | |
79 | |
80 // ------------------------------------------------------------------ | |
81 // CompileLog::identify | |
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82 int CompileLog::identify(ciBaseObject* obj) { |
0 | 83 if (obj == NULL) return 0; |
84 int id = obj->ident(); | |
85 if (id < 0) return id; | |
86 // If it has already been identified, just return the id. | |
87 if (id < _identities_limit && _identities[id] != 0) return id; | |
88 // Lengthen the array, if necessary. | |
89 if (id >= _identities_capacity) { | |
90 int new_cap = _identities_capacity * 2; | |
91 if (new_cap <= id) new_cap = id + 100; | |
6197 | 92 _identities = REALLOC_C_HEAP_ARRAY(char, _identities, new_cap, mtCompiler); |
0 | 93 _identities_capacity = new_cap; |
94 } | |
95 while (id >= _identities_limit) { | |
96 _identities[_identities_limit++] = 0; | |
97 } | |
98 assert(id < _identities_limit, "oob"); | |
99 // Mark this id as processed. | |
100 // (Be sure to do this before any recursive calls to identify.) | |
101 _identities[id] = 1; // mark | |
102 | |
103 // Now, print the object's identity once, in detail. | |
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104 if (obj->is_metadata()) { |
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105 ciMetadata* mobj = obj->as_metadata(); |
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106 if (mobj->is_klass()) { |
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107 ciKlass* klass = mobj->as_klass(); |
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108 begin_elem("klass id='%d'", id); |
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109 name(klass->name()); |
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110 if (!klass->is_loaded()) { |
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111 print(" unloaded='1'"); |
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112 } else { |
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113 print(" flags='%d'", klass->modifier_flags()); |
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114 } |
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115 end_elem(); |
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116 } else if (mobj->is_method()) { |
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117 ciMethod* method = mobj->as_method(); |
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118 ciSignature* sig = method->signature(); |
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119 // Pre-identify items that we will need! |
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120 identify(sig->return_type()); |
0 | 121 for (int i = 0; i < sig->count(); i++) { |
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122 identify(sig->type_at(i)); |
0 | 123 } |
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124 begin_elem("method id='%d' holder='%d'", |
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125 id, identify(method->holder())); |
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126 name(method->name()); |
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127 print(" return='%d'", identify(sig->return_type())); |
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128 if (sig->count() > 0) { |
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129 print(" arguments='"); |
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130 for (int i = 0; i < sig->count(); i++) { |
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131 print((i == 0) ? "%d" : " %d", identify(sig->type_at(i))); |
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132 } |
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133 print("'"); |
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134 } |
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135 if (!method->is_loaded()) { |
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136 print(" unloaded='1'"); |
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137 } else { |
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138 print(" flags='%d'", (jchar) method->flags().as_int()); |
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139 // output a few metrics |
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140 print(" bytes='%d'", method->code_size()); |
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141 method->log_nmethod_identity(this); |
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142 //print(" count='%d'", method->invocation_count()); |
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143 //int bec = method->backedge_count(); |
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144 //if (bec != 0) print(" backedge_count='%d'", bec); |
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145 print(" iicount='%d'", method->interpreter_invocation_count()); |
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146 } |
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147 end_elem(); |
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148 } else if (mobj->is_type()) { |
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149 BasicType type = mobj->as_type()->basic_type(); |
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150 elem("type id='%d' name='%s'", id, type2name(type)); |
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151 } else { |
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152 // Should not happen. |
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153 elem("unknown id='%d'", id); |
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154 ShouldNotReachHere(); |
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155 } |
0 | 156 } else if (obj->is_symbol()) { |
157 begin_elem("symbol id='%d'", id); | |
158 name(obj->as_symbol()); | |
159 end_elem(); | |
160 } else { | |
161 // Should not happen. | |
162 elem("unknown id='%d'", id); | |
163 } | |
164 return id; | |
165 } | |
166 | |
167 void CompileLog::name(ciSymbol* name) { | |
168 if (name == NULL) return; | |
169 print(" name='"); | |
170 name->print_symbol_on(text()); // handles quoting conventions | |
171 print("'"); | |
172 } | |
173 | |
174 | |
175 // ------------------------------------------------------------------ | |
176 // CompileLog::clear_identities | |
177 // Forget which identities have been printed. | |
178 void CompileLog::clear_identities() { | |
179 _identities_limit = 0; | |
180 } | |
181 | |
182 // ------------------------------------------------------------------ | |
183 // CompileLog::finish_log_on_error | |
184 // | |
185 // Note: This function is called after fatal error, avoid unnecessary memory | |
186 // or stack allocation, use only async-safe functions. It's possible JVM is | |
187 // only partially initialized. | |
188 void CompileLog::finish_log_on_error(outputStream* file, char* buf, int buflen) { | |
189 static bool called_exit = false; | |
190 if (called_exit) return; | |
191 called_exit = true; | |
192 | |
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193 CompileLog* log = _first; |
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194 while (log != NULL) { |
0 | 195 log->flush(); |
196 const char* partial_file = log->file(); | |
197 int partial_fd = open(partial_file, O_RDONLY); | |
198 if (partial_fd != -1) { | |
199 // print/print_cr may need to allocate large stack buffer to format | |
200 // strings, here we use snprintf() and print_raw() instead. | |
201 file->print_raw("<compilation_log thread='"); | |
202 jio_snprintf(buf, buflen, UINTX_FORMAT, log->thread_id()); | |
203 file->print_raw(buf); | |
204 file->print_raw_cr("'>"); | |
205 | |
206 size_t nr; // number read into buf from partial log | |
207 // Copy data up to the end of the last <event> element: | |
208 julong to_read = log->_file_end; | |
209 while (to_read > 0) { | |
210 if (to_read < (julong)buflen) | |
211 nr = (size_t)to_read; | |
212 else nr = buflen; | |
213 nr = read(partial_fd, buf, (int)nr); | |
214 if (nr <= 0) break; | |
215 to_read -= (julong)nr; | |
216 file->write(buf, nr); | |
217 } | |
218 | |
219 // Copy any remaining data inside a quote: | |
220 bool saw_slop = false; | |
221 int end_cdata = 0; // state machine [0..2] watching for too many "]]" | |
222 while ((nr = read(partial_fd, buf, buflen)) > 0) { | |
223 if (!saw_slop) { | |
224 file->print_raw_cr("<fragment>"); | |
225 file->print_raw_cr("<![CDATA["); | |
226 saw_slop = true; | |
227 } | |
228 // The rest of this loop amounts to a simple copy operation: | |
229 // { file->write(buf, nr); } | |
230 // However, it must sometimes output the buffer in parts, | |
231 // in case there is a CDATA quote embedded in the fragment. | |
232 const char* bufp; // pointer into buf | |
233 size_t nw; // number written in each pass of the following loop: | |
234 for (bufp = buf; nr > 0; nr -= nw, bufp += nw) { | |
235 // Write up to any problematic CDATA delimiter (usually all of nr). | |
236 for (nw = 0; nw < nr; nw++) { | |
237 // First, scan ahead into the buf, checking the state machine. | |
238 switch (bufp[nw]) { | |
239 case ']': | |
240 if (end_cdata < 2) end_cdata += 1; // saturating counter | |
241 continue; // keep scanning | |
242 case '>': | |
243 if (end_cdata == 2) break; // found CDATA delimiter! | |
244 // else fall through: | |
245 default: | |
246 end_cdata = 0; | |
247 continue; // keep scanning | |
248 } | |
249 // If we get here, nw is pointing at a bad '>'. | |
250 // It is very rare for this to happen. | |
251 // However, this code has been tested by introducing | |
252 // CDATA sequences into the compilation log. | |
253 break; | |
254 } | |
255 // Now nw is the number of characters to write, usually == nr. | |
256 file->write(bufp, nw); | |
257 if (nw < nr) { | |
258 // We are about to go around the loop again. | |
259 // But first, disrupt the ]]> by closing and reopening the quote. | |
260 file->print_raw("]]><![CDATA["); | |
261 end_cdata = 0; // reset state machine | |
262 } | |
263 } | |
264 } | |
265 if (saw_slop) { | |
266 file->print_raw_cr("]]>"); | |
267 file->print_raw_cr("</fragment>"); | |
268 } | |
269 file->print_raw_cr("</compilation_log>"); | |
270 close(partial_fd); | |
271 unlink(partial_file); | |
272 } | |
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273 CompileLog* next_log = log->_next; |
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274 delete log; |
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275 log = next_log; |
0 | 276 } |
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277 _first = NULL; |
0 | 278 } |
279 | |
280 // ------------------------------------------------------------------ | |
281 // CompileLog::finish_log | |
282 // | |
283 // Called during normal shutdown. For now, any clean-up needed in normal | |
284 // shutdown is also needed in VM abort, so is covered by finish_log_on_error(). | |
285 // Just allocate a buffer and call finish_log_on_error(). | |
286 void CompileLog::finish_log(outputStream* file) { | |
287 char buf[4 * K]; | |
288 finish_log_on_error(file, buf, sizeof(buf)); | |
289 } | |
6843 | 290 |
291 // ------------------------------------------------------------------ | |
292 // CompileLog::inline_success | |
293 // | |
294 // Print about successful method inlining. | |
295 void CompileLog::inline_success(const char* reason) { | |
296 begin_elem("inline_success reason='"); | |
297 text(reason); | |
298 end_elem("'"); | |
299 } | |
300 | |
301 // ------------------------------------------------------------------ | |
302 // CompileLog::inline_fail | |
303 // | |
304 // Print about failed method inlining. | |
305 void CompileLog::inline_fail(const char* reason) { | |
306 begin_elem("inline_fail reason='"); | |
307 text(reason); | |
308 end_elem("'"); | |
309 } | |
310 | |
311 // ------------------------------------------------------------------ | |
312 // CompileLog::set_context | |
313 // | |
314 // Set XML tag as an optional marker - it is printed only if | |
315 // there are other entries after until it is reset. | |
316 void CompileLog::set_context(const char* format, ...) { | |
317 va_list ap; | |
318 va_start(ap, format); | |
319 clear_context(); | |
320 _context.print("<"); | |
321 _context.vprint(format, ap); | |
322 _context.print_cr("/>"); | |
323 va_end(ap); | |
324 } | |
325 | |
326 // ------------------------------------------------------------------ | |
327 // CompileLog::code_cache_state | |
328 // | |
329 // Print code cache state. | |
330 void CompileLog::code_cache_state() { | |
331 begin_elem("code_cache"); | |
332 CodeCache::log_state(this); | |
333 end_elem(""); | |
334 } |