Mercurial > hg > truffle
annotate src/share/vm/utilities/ostream.cpp @ 8044:2c673161698a
8007402: Code cleanup to remove Parfait false positive
Summary: add array access range check
Reviewed-by: kvn
author | drchase |
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date | Sat, 09 Feb 2013 12:55:09 -0800 |
parents | 203f64878aab |
children | 3ac7d10a6572 0598674c0056 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2013, 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 "compiler/compileLog.hpp" | |
27 #include "oops/oop.inline.hpp" | |
28 #include "runtime/arguments.hpp" | |
29 #include "utilities/defaultStream.hpp" | |
30 #include "utilities/ostream.hpp" | |
31 #include "utilities/top.hpp" | |
32 #include "utilities/xmlstream.hpp" | |
33 #ifdef TARGET_OS_FAMILY_linux | |
34 # include "os_linux.inline.hpp" | |
35 #endif | |
36 #ifdef TARGET_OS_FAMILY_solaris | |
37 # include "os_solaris.inline.hpp" | |
38 #endif | |
39 #ifdef TARGET_OS_FAMILY_windows | |
40 # include "os_windows.inline.hpp" | |
41 #endif | |
3960 | 42 #ifdef TARGET_OS_FAMILY_bsd |
43 # include "os_bsd.inline.hpp" | |
44 #endif | |
0 | 45 |
46 extern "C" void jio_print(const char* s); // Declarationtion of jvm method | |
47 | |
48 outputStream::outputStream(int width) { | |
49 _width = width; | |
50 _position = 0; | |
51 _newlines = 0; | |
52 _precount = 0; | |
53 _indentation = 0; | |
54 } | |
55 | |
56 outputStream::outputStream(int width, bool has_time_stamps) { | |
57 _width = width; | |
58 _position = 0; | |
59 _newlines = 0; | |
60 _precount = 0; | |
61 _indentation = 0; | |
62 if (has_time_stamps) _stamp.update(); | |
63 } | |
64 | |
65 void outputStream::update_position(const char* s, size_t len) { | |
66 for (size_t i = 0; i < len; i++) { | |
67 char ch = s[i]; | |
68 if (ch == '\n') { | |
69 _newlines += 1; | |
70 _precount += _position + 1; | |
71 _position = 0; | |
72 } else if (ch == '\t') { | |
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73 int tw = 8 - (_position & 7); |
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74 _position += tw; |
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75 _precount -= tw-1; // invariant: _precount + _position == total count |
0 | 76 } else { |
77 _position += 1; | |
78 } | |
79 } | |
80 } | |
81 | |
82 // Execute a vsprintf, using the given buffer if necessary. | |
83 // Return a pointer to the formatted string. | |
84 const char* outputStream::do_vsnprintf(char* buffer, size_t buflen, | |
85 const char* format, va_list ap, | |
86 bool add_cr, | |
87 size_t& result_len) { | |
88 const char* result; | |
89 if (add_cr) buflen--; | |
90 if (!strchr(format, '%')) { | |
91 // constant format string | |
92 result = format; | |
93 result_len = strlen(result); | |
94 if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate | |
95 } else if (format[0] == '%' && format[1] == 's' && format[2] == '\0') { | |
96 // trivial copy-through format string | |
97 result = va_arg(ap, const char*); | |
98 result_len = strlen(result); | |
99 if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate | |
100 } else if (vsnprintf(buffer, buflen, format, ap) >= 0) { | |
101 result = buffer; | |
102 result_len = strlen(result); | |
103 } else { | |
104 DEBUG_ONLY(warning("increase O_BUFLEN in ostream.hpp -- output truncated");) | |
105 result = buffer; | |
106 result_len = buflen - 1; | |
107 buffer[result_len] = 0; | |
108 } | |
109 if (add_cr) { | |
110 if (result != buffer) { | |
111 strncpy(buffer, result, buflen); | |
112 result = buffer; | |
113 } | |
114 buffer[result_len++] = '\n'; | |
115 buffer[result_len] = 0; | |
116 } | |
117 return result; | |
118 } | |
119 | |
120 void outputStream::print(const char* format, ...) { | |
121 char buffer[O_BUFLEN]; | |
122 va_list ap; | |
123 va_start(ap, format); | |
124 size_t len; | |
125 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, false, len); | |
126 write(str, len); | |
127 va_end(ap); | |
128 } | |
129 | |
130 void outputStream::print_cr(const char* format, ...) { | |
131 char buffer[O_BUFLEN]; | |
132 va_list ap; | |
133 va_start(ap, format); | |
134 size_t len; | |
135 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, true, len); | |
136 write(str, len); | |
137 va_end(ap); | |
138 } | |
139 | |
140 void outputStream::vprint(const char *format, va_list argptr) { | |
141 char buffer[O_BUFLEN]; | |
142 size_t len; | |
143 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, false, len); | |
144 write(str, len); | |
145 } | |
146 | |
147 void outputStream::vprint_cr(const char* format, va_list argptr) { | |
148 char buffer[O_BUFLEN]; | |
149 size_t len; | |
150 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, true, len); | |
151 write(str, len); | |
152 } | |
153 | |
154 void outputStream::fill_to(int col) { | |
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155 int need_fill = col - position(); |
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156 sp(need_fill); |
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157 } |
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158 |
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159 void outputStream::move_to(int col, int slop, int min_space) { |
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160 if (position() >= col + slop) |
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161 cr(); |
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162 int need_fill = col - position(); |
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163 if (need_fill < min_space) |
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164 need_fill = min_space; |
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165 sp(need_fill); |
0 | 166 } |
167 | |
168 void outputStream::put(char ch) { | |
169 assert(ch != 0, "please fix call site"); | |
170 char buf[] = { ch, '\0' }; | |
171 write(buf, 1); | |
172 } | |
173 | |
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174 #define SP_USE_TABS false |
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175 |
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176 void outputStream::sp(int count) { |
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177 if (count < 0) return; |
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178 if (SP_USE_TABS && count >= 8) { |
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179 int target = position() + count; |
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180 while (count >= 8) { |
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181 this->write("\t", 1); |
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182 count -= 8; |
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183 } |
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184 count = target - position(); |
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185 } |
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186 while (count > 0) { |
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187 int nw = (count > 8) ? 8 : count; |
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188 this->write(" ", nw); |
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189 count -= nw; |
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190 } |
0 | 191 } |
192 | |
193 void outputStream::cr() { | |
194 this->write("\n", 1); | |
195 } | |
196 | |
197 void outputStream::stamp() { | |
198 if (! _stamp.is_updated()) { | |
199 _stamp.update(); // start at 0 on first call to stamp() | |
200 } | |
201 | |
202 // outputStream::stamp() may get called by ostream_abort(), use snprintf | |
203 // to avoid allocating large stack buffer in print(). | |
204 char buf[40]; | |
205 jio_snprintf(buf, sizeof(buf), "%.3f", _stamp.seconds()); | |
206 print_raw(buf); | |
207 } | |
208 | |
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209 void outputStream::stamp(bool guard, |
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210 const char* prefix, |
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211 const char* suffix) { |
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212 if (!guard) { |
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213 return; |
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214 } |
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215 print_raw(prefix); |
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216 stamp(); |
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217 print_raw(suffix); |
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218 } |
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219 |
0 | 220 void outputStream::date_stamp(bool guard, |
221 const char* prefix, | |
222 const char* suffix) { | |
223 if (!guard) { | |
224 return; | |
225 } | |
226 print_raw(prefix); | |
227 static const char error_time[] = "yyyy-mm-ddThh:mm:ss.mmm+zzzz"; | |
228 static const int buffer_length = 32; | |
229 char buffer[buffer_length]; | |
230 const char* iso8601_result = os::iso8601_time(buffer, buffer_length); | |
231 if (iso8601_result != NULL) { | |
232 print_raw(buffer); | |
233 } else { | |
234 print_raw(error_time); | |
235 } | |
236 print_raw(suffix); | |
237 return; | |
238 } | |
239 | |
6605 | 240 outputStream& outputStream::indent() { |
0 | 241 while (_position < _indentation) sp(); |
6605 | 242 return *this; |
0 | 243 } |
244 | |
245 void outputStream::print_jlong(jlong value) { | |
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246 print(JLONG_FORMAT, value); |
0 | 247 } |
248 | |
249 void outputStream::print_julong(julong value) { | |
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250 print(JULONG_FORMAT, value); |
0 | 251 } |
252 | |
6605 | 253 /** |
254 * This prints out hex data in a 'windbg' or 'xxd' form, where each line is: | |
255 * <hex-address>: 8 * <hex-halfword> <ascii translation (optional)> | |
256 * example: | |
257 * 0000000: 7f44 4f46 0102 0102 0000 0000 0000 0000 .DOF............ | |
258 * 0000010: 0000 0000 0000 0040 0000 0020 0000 0005 .......@... .... | |
259 * 0000020: 0000 0000 0000 0040 0000 0000 0000 015d .......@.......] | |
260 * ... | |
261 * | |
262 * indent is applied to each line. Ends with a CR. | |
263 */ | |
264 void outputStream::print_data(void* data, size_t len, bool with_ascii) { | |
265 size_t limit = (len + 16) / 16 * 16; | |
266 for (size_t i = 0; i < limit; ++i) { | |
267 if (i % 16 == 0) { | |
268 indent().print("%07x:", i); | |
269 } | |
270 if (i % 2 == 0) { | |
271 print(" "); | |
272 } | |
273 if (i < len) { | |
274 print("%02x", ((unsigned char*)data)[i]); | |
275 } else { | |
276 print(" "); | |
277 } | |
278 if ((i + 1) % 16 == 0) { | |
279 if (with_ascii) { | |
280 print(" "); | |
281 for (size_t j = 0; j < 16; ++j) { | |
282 size_t idx = i + j - 15; | |
283 if (idx < len) { | |
284 char c = ((char*)data)[idx]; | |
285 print("%c", c >= 32 && c <= 126 ? c : '.'); | |
286 } | |
287 } | |
288 } | |
289 print_cr(""); | |
290 } | |
291 } | |
292 } | |
293 | |
0 | 294 stringStream::stringStream(size_t initial_size) : outputStream() { |
295 buffer_length = initial_size; | |
296 buffer = NEW_RESOURCE_ARRAY(char, buffer_length); | |
297 buffer_pos = 0; | |
298 buffer_fixed = false; | |
299 } | |
300 | |
301 // useful for output to fixed chunks of memory, such as performance counters | |
302 stringStream::stringStream(char* fixed_buffer, size_t fixed_buffer_size) : outputStream() { | |
303 buffer_length = fixed_buffer_size; | |
304 buffer = fixed_buffer; | |
305 buffer_pos = 0; | |
306 buffer_fixed = true; | |
307 } | |
308 | |
309 void stringStream::write(const char* s, size_t len) { | |
310 size_t write_len = len; // number of non-null bytes to write | |
311 size_t end = buffer_pos + len + 1; // position after write and final '\0' | |
312 if (end > buffer_length) { | |
313 if (buffer_fixed) { | |
314 // if buffer cannot resize, silently truncate | |
315 end = buffer_length; | |
316 write_len = end - buffer_pos - 1; // leave room for the final '\0' | |
317 } else { | |
318 // For small overruns, double the buffer. For larger ones, | |
319 // increase to the requested size. | |
320 if (end < buffer_length * 2) { | |
321 end = buffer_length * 2; | |
322 } | |
323 char* oldbuf = buffer; | |
324 buffer = NEW_RESOURCE_ARRAY(char, end); | |
325 strncpy(buffer, oldbuf, buffer_pos); | |
326 buffer_length = end; | |
327 } | |
328 } | |
329 // invariant: buffer is always null-terminated | |
330 guarantee(buffer_pos + write_len + 1 <= buffer_length, "stringStream oob"); | |
331 buffer[buffer_pos + write_len] = 0; | |
332 strncpy(buffer + buffer_pos, s, write_len); | |
333 buffer_pos += write_len; | |
334 | |
335 // Note that the following does not depend on write_len. | |
336 // This means that position and count get updated | |
337 // even when overflow occurs. | |
338 update_position(s, len); | |
339 } | |
340 | |
341 char* stringStream::as_string() { | |
342 char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1); | |
343 strncpy(copy, buffer, buffer_pos); | |
344 copy[buffer_pos] = 0; // terminating null | |
345 return copy; | |
346 } | |
347 | |
348 stringStream::~stringStream() {} | |
349 | |
350 xmlStream* xtty; | |
351 outputStream* tty; | |
352 outputStream* gclog_or_tty; | |
353 extern Mutex* tty_lock; | |
354 | |
355 fileStream::fileStream(const char* file_name) { | |
356 _file = fopen(file_name, "w"); | |
357 _need_close = true; | |
358 } | |
359 | |
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360 fileStream::fileStream(const char* file_name, const char* opentype) { |
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361 _file = fopen(file_name, opentype); |
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362 _need_close = true; |
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363 } |
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364 |
0 | 365 void fileStream::write(const char* s, size_t len) { |
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366 if (_file != NULL) { |
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367 // Make an unused local variable to avoid warning from gcc 4.x compiler. |
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368 size_t count = fwrite(s, 1, len, _file); |
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369 } |
0 | 370 update_position(s, len); |
371 } | |
372 | |
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373 long fileStream::fileSize() { |
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374 long size = -1; |
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375 if (_file != NULL) { |
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376 long pos = ::ftell(_file); |
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377 if (::fseek(_file, 0, SEEK_END) == 0) { |
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378 size = ::ftell(_file); |
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379 } |
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380 ::fseek(_file, pos, SEEK_SET); |
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381 } |
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382 return size; |
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383 } |
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384 |
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385 char* fileStream::readln(char *data, int count ) { |
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386 char * ret = ::fgets(data, count, _file); |
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387 //Get rid of annoying \n char |
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388 data[::strlen(data)-1] = '\0'; |
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389 return ret; |
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390 } |
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391 |
0 | 392 fileStream::~fileStream() { |
393 if (_file != NULL) { | |
394 if (_need_close) fclose(_file); | |
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395 _file = NULL; |
0 | 396 } |
397 } | |
398 | |
399 void fileStream::flush() { | |
400 fflush(_file); | |
401 } | |
402 | |
403 fdStream::fdStream(const char* file_name) { | |
404 _fd = open(file_name, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
405 _need_close = true; | |
406 } | |
407 | |
408 fdStream::~fdStream() { | |
409 if (_fd != -1) { | |
410 if (_need_close) close(_fd); | |
411 _fd = -1; | |
412 } | |
413 } | |
414 | |
415 void fdStream::write(const char* s, size_t len) { | |
513
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416 if (_fd != -1) { |
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417 // Make an unused local variable to avoid warning from gcc 4.x compiler. |
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418 size_t count = ::write(_fd, s, (int)len); |
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419 } |
0 | 420 update_position(s, len); |
421 } | |
422 | |
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423 rotatingFileStream::~rotatingFileStream() { |
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424 if (_file != NULL) { |
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425 if (_need_close) fclose(_file); |
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426 _file = NULL; |
6197 | 427 FREE_C_HEAP_ARRAY(char, _file_name, mtInternal); |
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428 _file_name = NULL; |
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429 } |
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430 } |
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431 |
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432 rotatingFileStream::rotatingFileStream(const char* file_name) { |
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433 _cur_file_num = 0; |
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434 _bytes_writen = 0L; |
6197 | 435 _file_name = NEW_C_HEAP_ARRAY(char, strlen(file_name)+10, mtInternal); |
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436 jio_snprintf(_file_name, strlen(file_name)+10, "%s.%d", file_name, _cur_file_num); |
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437 _file = fopen(_file_name, "w"); |
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438 _need_close = true; |
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439 } |
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440 |
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441 rotatingFileStream::rotatingFileStream(const char* file_name, const char* opentype) { |
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442 _cur_file_num = 0; |
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443 _bytes_writen = 0L; |
6197 | 444 _file_name = NEW_C_HEAP_ARRAY(char, strlen(file_name)+10, mtInternal); |
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445 jio_snprintf(_file_name, strlen(file_name)+10, "%s.%d", file_name, _cur_file_num); |
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446 _file = fopen(_file_name, opentype); |
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447 _need_close = true; |
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448 } |
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449 |
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450 void rotatingFileStream::write(const char* s, size_t len) { |
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451 if (_file != NULL) { |
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452 // Make an unused local variable to avoid warning from gcc 4.x compiler. |
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453 size_t count = fwrite(s, 1, len, _file); |
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454 Atomic::add((jlong)count, &_bytes_writen); |
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455 } |
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456 update_position(s, len); |
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457 } |
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458 |
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459 // rotate_log must be called from VMThread at safepoint. In case need change parameters |
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460 // for gc log rotation from thread other than VMThread, a sub type of VM_Operation |
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461 // should be created and be submitted to VMThread's operation queue. DO NOT call this |
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462 // function directly. Currently, it is safe to rotate log at safepoint through VMThread. |
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463 // That is, no mutator threads and concurrent GC threads run parallel with VMThread to |
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464 // write to gc log file at safepoint. If in future, changes made for mutator threads or |
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465 // concurrent GC threads to run parallel with VMThread at safepoint, write and rotate_log |
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466 // must be synchronized. |
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467 void rotatingFileStream::rotate_log() { |
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468 if (_bytes_writen < (jlong)GCLogFileSize) return; |
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469 #ifdef ASSERT |
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470 Thread *thread = Thread::current(); |
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471 assert(thread == NULL || |
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472 (thread->is_VM_thread() && SafepointSynchronize::is_at_safepoint()), |
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473 "Must be VMThread at safepoint"); |
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474 #endif |
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475 if (NumberOfGCLogFiles == 1) { |
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476 // rotate in same file |
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477 rewind(); |
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478 _bytes_writen = 0L; |
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479 return; |
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480 } |
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481 |
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482 // rotate file in names file.0, file.1, file.2, ..., file.<MaxGCLogFileNumbers-1> |
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483 // close current file, rotate to next file |
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484 if (_file != NULL) { |
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485 _cur_file_num ++; |
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486 if (_cur_file_num >= NumberOfGCLogFiles) _cur_file_num = 0; |
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487 jio_snprintf(_file_name, strlen(Arguments::gc_log_filename()) + 10, "%s.%d", |
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488 Arguments::gc_log_filename(), _cur_file_num); |
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489 fclose(_file); |
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490 _file = NULL; |
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491 } |
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492 _file = fopen(_file_name, "w"); |
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493 if (_file != NULL) { |
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494 _bytes_writen = 0L; |
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495 _need_close = true; |
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496 } else { |
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497 tty->print_cr("failed to open rotation log file %s due to %s\n", |
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498 _file_name, strerror(errno)); |
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499 _need_close = false; |
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500 } |
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501 } |
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502 |
0 | 503 defaultStream* defaultStream::instance = NULL; |
504 int defaultStream::_output_fd = 1; | |
505 int defaultStream::_error_fd = 2; | |
506 FILE* defaultStream::_output_stream = stdout; | |
507 FILE* defaultStream::_error_stream = stderr; | |
508 | |
509 #define LOG_MAJOR_VERSION 160 | |
510 #define LOG_MINOR_VERSION 1 | |
511 | |
512 void defaultStream::init() { | |
513 _inited = true; | |
514 if (LogVMOutput || LogCompilation) { | |
515 init_log(); | |
516 } | |
517 } | |
518 | |
519 bool defaultStream::has_log_file() { | |
520 // lazily create log file (at startup, LogVMOutput is false even | |
521 // if +LogVMOutput is used, because the flags haven't been parsed yet) | |
522 // For safer printing during fatal error handling, do not init logfile | |
523 // if a VM error has been reported. | |
524 if (!_inited && !is_error_reported()) init(); | |
525 return _log_file != NULL; | |
526 } | |
527 | |
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528 static const char* make_log_name(const char* log_name, const char* force_directory) { |
0 | 529 const char* basename = log_name; |
530 char file_sep = os::file_separator()[0]; | |
531 const char* cp; | |
532 for (cp = log_name; *cp != '\0'; cp++) { | |
533 if (*cp == '/' || *cp == file_sep) { | |
534 basename = cp+1; | |
535 } | |
536 } | |
537 const char* nametail = log_name; | |
538 | |
1353
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539 // Compute buffer length |
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540 size_t buffer_length; |
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541 if (force_directory != NULL) { |
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542 buffer_length = strlen(force_directory) + strlen(os::file_separator()) + |
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543 strlen(basename) + 1; |
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544 } else { |
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545 buffer_length = strlen(log_name) + 1; |
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546 } |
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547 |
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548 const char* star = strchr(basename, '*'); |
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549 int star_pos = (star == NULL) ? -1 : (star - nametail); |
2400
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550 int skip = 1; |
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551 if (star == NULL) { |
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552 // Try %p |
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553 star = strstr(basename, "%p"); |
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554 if (star != NULL) { |
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555 skip = 2; |
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556 } |
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557 } |
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558 star_pos = (star == NULL) ? -1 : (star - nametail); |
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559 |
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560 char pid[32]; |
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561 if (star_pos >= 0) { |
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562 jio_snprintf(pid, sizeof(pid), "%u", os::current_process_id()); |
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563 buffer_length += strlen(pid); |
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564 } |
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565 |
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566 // Create big enough buffer. |
6197 | 567 char *buf = NEW_C_HEAP_ARRAY(char, buffer_length, mtInternal); |
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568 |
0 | 569 strcpy(buf, ""); |
570 if (force_directory != NULL) { | |
571 strcat(buf, force_directory); | |
572 strcat(buf, os::file_separator()); | |
573 nametail = basename; // completely skip directory prefix | |
574 } | |
575 | |
576 if (star_pos >= 0) { | |
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577 // convert foo*bar.log or foo%pbar.log to foo123bar.log |
0 | 578 int buf_pos = (int) strlen(buf); |
579 strncpy(&buf[buf_pos], nametail, star_pos); | |
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580 strcpy(&buf[buf_pos + star_pos], pid); |
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581 nametail += star_pos + skip; // skip prefix and pid format |
0 | 582 } |
583 | |
584 strcat(buf, nametail); // append rest of name, or all of name | |
585 return buf; | |
586 } | |
587 | |
588 void defaultStream::init_log() { | |
589 // %%% Need a MutexLocker? | |
590 const char* log_name = LogFile != NULL ? LogFile : "hotspot.log"; | |
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591 const char* try_name = make_log_name(log_name, NULL); |
6197 | 592 fileStream* file = new(ResourceObj::C_HEAP, mtInternal) fileStream(try_name); |
0 | 593 if (!file->is_open()) { |
594 // Try again to open the file. | |
595 char warnbuf[O_BUFLEN*2]; | |
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596 jio_snprintf(warnbuf, sizeof(warnbuf), |
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597 "Warning: Cannot open log file: %s\n", try_name); |
0 | 598 // Note: This feature is for maintainer use only. No need for L10N. |
599 jio_print(warnbuf); | |
6197 | 600 FREE_C_HEAP_ARRAY(char, try_name, mtInternal); |
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601 try_name = make_log_name("hs_pid%p.log", os::get_temp_directory()); |
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602 jio_snprintf(warnbuf, sizeof(warnbuf), |
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603 "Warning: Forcing option -XX:LogFile=%s\n", try_name); |
0 | 604 jio_print(warnbuf); |
605 delete file; | |
6197 | 606 file = new(ResourceObj::C_HEAP, mtInternal) fileStream(try_name); |
607 FREE_C_HEAP_ARRAY(char, try_name, mtInternal); | |
0 | 608 } |
609 if (file->is_open()) { | |
610 _log_file = file; | |
6197 | 611 xmlStream* xs = new(ResourceObj::C_HEAP, mtInternal) xmlStream(file); |
0 | 612 _outer_xmlStream = xs; |
613 if (this == tty) xtty = xs; | |
614 // Write XML header. | |
615 xs->print_cr("<?xml version='1.0' encoding='UTF-8'?>"); | |
616 // (For now, don't bother to issue a DTD for this private format.) | |
617 jlong time_ms = os::javaTimeMillis() - tty->time_stamp().milliseconds(); | |
618 // %%% Should be: jlong time_ms = os::start_time_milliseconds(), if | |
619 // we ever get round to introduce that method on the os class | |
620 xs->head("hotspot_log version='%d %d'" | |
621 " process='%d' time_ms='"INT64_FORMAT"'", | |
622 LOG_MAJOR_VERSION, LOG_MINOR_VERSION, | |
623 os::current_process_id(), time_ms); | |
624 // Write VM version header immediately. | |
625 xs->head("vm_version"); | |
626 xs->head("name"); xs->text("%s", VM_Version::vm_name()); xs->cr(); | |
627 xs->tail("name"); | |
628 xs->head("release"); xs->text("%s", VM_Version::vm_release()); xs->cr(); | |
629 xs->tail("release"); | |
630 xs->head("info"); xs->text("%s", VM_Version::internal_vm_info_string()); xs->cr(); | |
631 xs->tail("info"); | |
632 xs->tail("vm_version"); | |
633 // Record information about the command-line invocation. | |
634 xs->head("vm_arguments"); // Cf. Arguments::print_on() | |
635 if (Arguments::num_jvm_flags() > 0) { | |
636 xs->head("flags"); | |
637 Arguments::print_jvm_flags_on(xs->text()); | |
638 xs->tail("flags"); | |
639 } | |
640 if (Arguments::num_jvm_args() > 0) { | |
641 xs->head("args"); | |
642 Arguments::print_jvm_args_on(xs->text()); | |
643 xs->tail("args"); | |
644 } | |
645 if (Arguments::java_command() != NULL) { | |
646 xs->head("command"); xs->text()->print_cr("%s", Arguments::java_command()); | |
647 xs->tail("command"); | |
648 } | |
649 if (Arguments::sun_java_launcher() != NULL) { | |
650 xs->head("launcher"); xs->text()->print_cr("%s", Arguments::sun_java_launcher()); | |
651 xs->tail("launcher"); | |
652 } | |
653 if (Arguments::system_properties() != NULL) { | |
654 xs->head("properties"); | |
655 // Print it as a java-style property list. | |
656 // System properties don't generally contain newlines, so don't bother with unparsing. | |
657 for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) { | |
658 xs->text()->print_cr("%s=%s", p->key(), p->value()); | |
659 } | |
660 xs->tail("properties"); | |
661 } | |
662 xs->tail("vm_arguments"); | |
663 // tty output per se is grouped under the <tty>...</tty> element. | |
664 xs->head("tty"); | |
665 // All further non-markup text gets copied to the tty: | |
666 xs->_text = this; // requires friend declaration! | |
667 } else { | |
668 delete(file); | |
669 // and leave xtty as NULL | |
670 LogVMOutput = false; | |
671 DisplayVMOutput = true; | |
672 LogCompilation = false; | |
673 } | |
674 } | |
675 | |
676 // finish_log() is called during normal VM shutdown. finish_log_on_error() is | |
677 // called by ostream_abort() after a fatal error. | |
678 // | |
679 void defaultStream::finish_log() { | |
680 xmlStream* xs = _outer_xmlStream; | |
681 xs->done("tty"); | |
682 | |
683 // Other log forks are appended here, at the End of Time: | |
684 CompileLog::finish_log(xs->out()); // write compile logging, if any, now | |
685 | |
686 xs->done("hotspot_log"); | |
687 xs->flush(); | |
688 | |
689 fileStream* file = _log_file; | |
690 _log_file = NULL; | |
691 | |
692 delete _outer_xmlStream; | |
693 _outer_xmlStream = NULL; | |
694 | |
695 file->flush(); | |
696 delete file; | |
697 } | |
698 | |
699 void defaultStream::finish_log_on_error(char *buf, int buflen) { | |
700 xmlStream* xs = _outer_xmlStream; | |
701 | |
702 if (xs && xs->out()) { | |
703 | |
704 xs->done_raw("tty"); | |
705 | |
706 // Other log forks are appended here, at the End of Time: | |
707 CompileLog::finish_log_on_error(xs->out(), buf, buflen); // write compile logging, if any, now | |
708 | |
709 xs->done_raw("hotspot_log"); | |
710 xs->flush(); | |
711 | |
712 fileStream* file = _log_file; | |
713 _log_file = NULL; | |
714 _outer_xmlStream = NULL; | |
715 | |
716 if (file) { | |
717 file->flush(); | |
718 | |
719 // Can't delete or close the file because delete and fclose aren't | |
720 // async-safe. We are about to die, so leave it to the kernel. | |
721 // delete file; | |
722 } | |
723 } | |
724 } | |
725 | |
726 intx defaultStream::hold(intx writer_id) { | |
727 bool has_log = has_log_file(); // check before locking | |
728 if (// impossible, but who knows? | |
729 writer_id == NO_WRITER || | |
730 | |
731 // bootstrap problem | |
732 tty_lock == NULL || | |
733 | |
734 // can't grab a lock or call Thread::current() if TLS isn't initialized | |
735 ThreadLocalStorage::thread() == NULL || | |
736 | |
737 // developer hook | |
738 !SerializeVMOutput || | |
739 | |
740 // VM already unhealthy | |
741 is_error_reported() || | |
742 | |
743 // safepoint == global lock (for VM only) | |
744 (SafepointSynchronize::is_synchronizing() && | |
745 Thread::current()->is_VM_thread()) | |
746 ) { | |
747 // do not attempt to lock unless we know the thread and the VM is healthy | |
748 return NO_WRITER; | |
749 } | |
750 if (_writer == writer_id) { | |
751 // already held, no need to re-grab the lock | |
752 return NO_WRITER; | |
753 } | |
754 tty_lock->lock_without_safepoint_check(); | |
755 // got the lock | |
756 if (writer_id != _last_writer) { | |
757 if (has_log) { | |
758 _log_file->bol(); | |
759 // output a hint where this output is coming from: | |
6843 | 760 _log_file->print_cr("<writer thread='" UINTX_FORMAT "'/>", writer_id); |
0 | 761 } |
762 _last_writer = writer_id; | |
763 } | |
764 _writer = writer_id; | |
765 return writer_id; | |
766 } | |
767 | |
768 void defaultStream::release(intx holder) { | |
769 if (holder == NO_WRITER) { | |
770 // nothing to release: either a recursive lock, or we scribbled (too bad) | |
771 return; | |
772 } | |
773 if (_writer != holder) { | |
774 return; // already unlocked, perhaps via break_tty_lock_for_safepoint | |
775 } | |
776 _writer = NO_WRITER; | |
777 tty_lock->unlock(); | |
778 } | |
779 | |
780 | |
781 // Yuck: jio_print does not accept char*/len. | |
782 static void call_jio_print(const char* s, size_t len) { | |
783 char buffer[O_BUFLEN+100]; | |
784 if (len > sizeof(buffer)-1) { | |
785 warning("increase O_BUFLEN in ostream.cpp -- output truncated"); | |
786 len = sizeof(buffer)-1; | |
787 } | |
788 strncpy(buffer, s, len); | |
789 buffer[len] = '\0'; | |
790 jio_print(buffer); | |
791 } | |
792 | |
793 | |
794 void defaultStream::write(const char* s, size_t len) { | |
795 intx thread_id = os::current_thread_id(); | |
796 intx holder = hold(thread_id); | |
797 | |
798 if (DisplayVMOutput && | |
799 (_outer_xmlStream == NULL || !_outer_xmlStream->inside_attrs())) { | |
800 // print to output stream. It can be redirected by a vfprintf hook | |
801 if (s[len] == '\0') { | |
802 jio_print(s); | |
803 } else { | |
804 call_jio_print(s, len); | |
805 } | |
806 } | |
807 | |
808 // print to log file | |
809 if (has_log_file()) { | |
810 int nl0 = _newlines; | |
811 xmlTextStream::write(s, len); | |
812 // flush the log file too, if there were any newlines | |
813 if (nl0 != _newlines){ | |
814 flush(); | |
815 } | |
816 } else { | |
817 update_position(s, len); | |
818 } | |
819 | |
820 release(holder); | |
821 } | |
822 | |
823 intx ttyLocker::hold_tty() { | |
824 if (defaultStream::instance == NULL) return defaultStream::NO_WRITER; | |
825 intx thread_id = os::current_thread_id(); | |
826 return defaultStream::instance->hold(thread_id); | |
827 } | |
828 | |
829 void ttyLocker::release_tty(intx holder) { | |
830 if (holder == defaultStream::NO_WRITER) return; | |
831 defaultStream::instance->release(holder); | |
832 } | |
833 | |
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834 bool ttyLocker::release_tty_if_locked() { |
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835 intx thread_id = os::current_thread_id(); |
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836 if (defaultStream::instance->writer() == thread_id) { |
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837 // release the lock and return true so callers know if was |
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838 // previously held. |
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839 release_tty(thread_id); |
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840 return true; |
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841 } |
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842 return false; |
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843 } |
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844 |
0 | 845 void ttyLocker::break_tty_lock_for_safepoint(intx holder) { |
846 if (defaultStream::instance != NULL && | |
847 defaultStream::instance->writer() == holder) { | |
848 if (xtty != NULL) { | |
849 xtty->print_cr("<!-- safepoint while printing -->"); | |
850 } | |
851 defaultStream::instance->release(holder); | |
852 } | |
853 // (else there was no lock to break) | |
854 } | |
855 | |
856 void ostream_init() { | |
857 if (defaultStream::instance == NULL) { | |
6197 | 858 defaultStream::instance = new(ResourceObj::C_HEAP, mtInternal) defaultStream(); |
0 | 859 tty = defaultStream::instance; |
860 | |
861 // We want to ensure that time stamps in GC logs consider time 0 | |
862 // the time when the JVM is initialized, not the first time we ask | |
863 // for a time stamp. So, here, we explicitly update the time stamp | |
864 // of tty. | |
865 tty->time_stamp().update_to(1); | |
866 } | |
867 } | |
868 | |
869 void ostream_init_log() { | |
870 // For -Xloggc:<file> option - called in runtime/thread.cpp | |
871 // Note : this must be called AFTER ostream_init() | |
872 | |
873 gclog_or_tty = tty; // default to tty | |
874 if (Arguments::gc_log_filename() != NULL) { | |
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875 fileStream * gclog = UseGCLogFileRotation ? |
6197 | 876 new(ResourceObj::C_HEAP, mtInternal) |
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877 rotatingFileStream(Arguments::gc_log_filename()) : |
6197 | 878 new(ResourceObj::C_HEAP, mtInternal) |
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879 fileStream(Arguments::gc_log_filename()); |
0 | 880 if (gclog->is_open()) { |
881 // now we update the time stamp of the GC log to be synced up | |
882 // with tty. | |
883 gclog->time_stamp().update_to(tty->time_stamp().ticks()); | |
884 } | |
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885 gclog_or_tty = gclog; |
0 | 886 } |
887 | |
888 // If we haven't lazily initialized the logfile yet, do it now, | |
889 // to avoid the possibility of lazy initialization during a VM | |
890 // crash, which can affect the stability of the fatal error handler. | |
891 defaultStream::instance->has_log_file(); | |
892 } | |
893 | |
894 // ostream_exit() is called during normal VM exit to finish log files, flush | |
895 // output and free resource. | |
896 void ostream_exit() { | |
897 static bool ostream_exit_called = false; | |
898 if (ostream_exit_called) return; | |
899 ostream_exit_called = true; | |
900 if (gclog_or_tty != tty) { | |
901 delete gclog_or_tty; | |
902 } | |
903 { | |
904 // we temporaly disable PrintMallocFree here | |
905 // as otherwise it'll lead to using of almost deleted | |
906 // tty or defaultStream::instance in logging facility | |
907 // of HeapFree(), see 6391258 | |
908 DEBUG_ONLY(FlagSetting fs(PrintMallocFree, false);) | |
909 if (tty != defaultStream::instance) { | |
910 delete tty; | |
911 } | |
912 if (defaultStream::instance != NULL) { | |
913 delete defaultStream::instance; | |
914 } | |
915 } | |
916 tty = NULL; | |
917 xtty = NULL; | |
918 gclog_or_tty = NULL; | |
919 defaultStream::instance = NULL; | |
920 } | |
921 | |
922 // ostream_abort() is called by os::abort() when VM is about to die. | |
923 void ostream_abort() { | |
924 // Here we can't delete gclog_or_tty and tty, just flush their output | |
925 if (gclog_or_tty) gclog_or_tty->flush(); | |
926 if (tty) tty->flush(); | |
927 | |
928 if (defaultStream::instance != NULL) { | |
929 static char buf[4096]; | |
930 defaultStream::instance->finish_log_on_error(buf, sizeof(buf)); | |
931 } | |
932 } | |
933 | |
934 staticBufferStream::staticBufferStream(char* buffer, size_t buflen, | |
935 outputStream *outer_stream) { | |
936 _buffer = buffer; | |
937 _buflen = buflen; | |
938 _outer_stream = outer_stream; | |
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939 // compile task prints time stamp relative to VM start |
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940 _stamp.update_to(1); |
0 | 941 } |
942 | |
943 void staticBufferStream::write(const char* c, size_t len) { | |
944 _outer_stream->print_raw(c, (int)len); | |
945 } | |
946 | |
947 void staticBufferStream::flush() { | |
948 _outer_stream->flush(); | |
949 } | |
950 | |
951 void staticBufferStream::print(const char* format, ...) { | |
952 va_list ap; | |
953 va_start(ap, format); | |
954 size_t len; | |
955 const char* str = do_vsnprintf(_buffer, _buflen, format, ap, false, len); | |
956 write(str, len); | |
957 va_end(ap); | |
958 } | |
959 | |
960 void staticBufferStream::print_cr(const char* format, ...) { | |
961 va_list ap; | |
962 va_start(ap, format); | |
963 size_t len; | |
964 const char* str = do_vsnprintf(_buffer, _buflen, format, ap, true, len); | |
965 write(str, len); | |
966 va_end(ap); | |
967 } | |
968 | |
969 void staticBufferStream::vprint(const char *format, va_list argptr) { | |
970 size_t len; | |
971 const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, false, len); | |
972 write(str, len); | |
973 } | |
974 | |
975 void staticBufferStream::vprint_cr(const char* format, va_list argptr) { | |
976 size_t len; | |
977 const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, true, len); | |
978 write(str, len); | |
979 } | |
980 | |
222 | 981 bufferedStream::bufferedStream(size_t initial_size, size_t bufmax) : outputStream() { |
0 | 982 buffer_length = initial_size; |
6197 | 983 buffer = NEW_C_HEAP_ARRAY(char, buffer_length, mtInternal); |
0 | 984 buffer_pos = 0; |
985 buffer_fixed = false; | |
222 | 986 buffer_max = bufmax; |
0 | 987 } |
988 | |
222 | 989 bufferedStream::bufferedStream(char* fixed_buffer, size_t fixed_buffer_size, size_t bufmax) : outputStream() { |
0 | 990 buffer_length = fixed_buffer_size; |
991 buffer = fixed_buffer; | |
992 buffer_pos = 0; | |
993 buffer_fixed = true; | |
222 | 994 buffer_max = bufmax; |
0 | 995 } |
996 | |
997 void bufferedStream::write(const char* s, size_t len) { | |
222 | 998 |
999 if(buffer_pos + len > buffer_max) { | |
1000 flush(); | |
1001 } | |
1002 | |
0 | 1003 size_t end = buffer_pos + len; |
1004 if (end >= buffer_length) { | |
1005 if (buffer_fixed) { | |
1006 // if buffer cannot resize, silently truncate | |
1007 len = buffer_length - buffer_pos - 1; | |
1008 } else { | |
1009 // For small overruns, double the buffer. For larger ones, | |
1010 // increase to the requested size. | |
1011 if (end < buffer_length * 2) { | |
1012 end = buffer_length * 2; | |
1013 } | |
6197 | 1014 buffer = REALLOC_C_HEAP_ARRAY(char, buffer, end, mtInternal); |
0 | 1015 buffer_length = end; |
1016 } | |
1017 } | |
1018 memcpy(buffer + buffer_pos, s, len); | |
1019 buffer_pos += len; | |
1020 update_position(s, len); | |
1021 } | |
1022 | |
1023 char* bufferedStream::as_string() { | |
1024 char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1); | |
1025 strncpy(copy, buffer, buffer_pos); | |
1026 copy[buffer_pos] = 0; // terminating null | |
1027 return copy; | |
1028 } | |
1029 | |
1030 bufferedStream::~bufferedStream() { | |
1031 if (!buffer_fixed) { | |
6197 | 1032 FREE_C_HEAP_ARRAY(char, buffer, mtInternal); |
0 | 1033 } |
1034 } | |
1035 | |
1036 #ifndef PRODUCT | |
1037 | |
3960 | 1038 #if defined(SOLARIS) || defined(LINUX) || defined(_ALLBSD_SOURCE) |
0 | 1039 #include <sys/types.h> |
1040 #include <sys/socket.h> | |
1041 #include <netinet/in.h> | |
1042 #include <arpa/inet.h> | |
1043 #endif | |
1044 | |
1045 // Network access | |
222 | 1046 networkStream::networkStream() : bufferedStream(1024*10, 1024*10) { |
0 | 1047 |
1048 _socket = -1; | |
1049 | |
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1050 int result = os::socket(AF_INET, SOCK_STREAM, 0); |
0 | 1051 if (result <= 0) { |
1052 assert(false, "Socket could not be created!"); | |
1053 } else { | |
1054 _socket = result; | |
1055 } | |
1056 } | |
1057 | |
1058 int networkStream::read(char *buf, size_t len) { | |
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1059 return os::recv(_socket, buf, (int)len, 0); |
0 | 1060 } |
1061 | |
1062 void networkStream::flush() { | |
1063 if (size() != 0) { | |
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1064 int result = os::raw_send(_socket, (char *)base(), size(), 0); |
222 | 1065 assert(result != -1, "connection error"); |
1066 assert(result == (int)size(), "didn't send enough data"); | |
0 | 1067 } |
1068 reset(); | |
1069 } | |
1070 | |
1071 networkStream::~networkStream() { | |
1072 close(); | |
1073 } | |
1074 | |
1075 void networkStream::close() { | |
1076 if (_socket != -1) { | |
1077 flush(); | |
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1078 os::socket_close(_socket); |
0 | 1079 _socket = -1; |
1080 } | |
1081 } | |
1082 | |
1083 bool networkStream::connect(const char *ip, short port) { | |
1084 | |
1085 struct sockaddr_in server; | |
1086 server.sin_family = AF_INET; | |
1087 server.sin_port = htons(port); | |
1088 | |
1089 server.sin_addr.s_addr = inet_addr(ip); | |
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1090 if (server.sin_addr.s_addr == (uint32_t)-1) { |
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1091 struct hostent* host = os::get_host_by_name((char*)ip); |
0 | 1092 if (host != NULL) { |
1093 memcpy(&server.sin_addr, host->h_addr_list[0], host->h_length); | |
1094 } else { | |
1095 return false; | |
1096 } | |
1097 } | |
1098 | |
1099 | |
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1100 int result = os::connect(_socket, (struct sockaddr*)&server, sizeof(struct sockaddr_in)); |
0 | 1101 return (result >= 0); |
1102 } | |
1103 | |
1104 #endif |