File: ChangeLog.old

package info (click to toggle)
google-perftools 2.7-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, buster, sid
  • size: 7,284 kB
  • sloc: cpp: 27,869; ansic: 9,534; sh: 4,799; perl: 4,116; makefile: 1,101; asm: 128
file content (646 lines) | stat: -rw-r--r-- 34,478 bytes parent folder | download | duplicates (9)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
Fri Feb 03 15:40:45 2012  Google Inc. <google-perftools@googlegroups.com>

	* gperftools: version 2.0
	* Renamed the project from google-perftools to gperftools (csilvers)
	* Renamed the .deb/.rpm packagse from google-perftools to gperftools too
	* Renamed include directory from google/ to gperftools/ (csilvers)
	* Changed the 'official' perftools email in setup.py/etc
	* Renamed google-perftools.sln to gperftools.sln
	* PORTING: Removed bash-isms & grep -q in heap-checker-death_unittest.sh
	* Changed copyright text to reflect Google's relinquished ownership

Tue Jan 31 10:43:50 2012    Google Inc. <opensource@google.com>

	* google-perftools: version 1.10 release
	* PORTING: Support for patching assembly on win x86_64! (scott.fr...)
	* PORTING: Work around atexit-execution-order bug on freebsd (csilvers)
	* PORTING: Patch _calloc_crt for windows (roger orr)
	* PORTING: Add C++11 compatibility method for stl allocator (jdennett)
	* PORTING: use MADV_FREE, not MADV_DONTNEED, on freebsd (csilvers)
	* PORTING: Don't use SYS_open when not supported on solaris (csilvers)
	* PORTING: Do not assume uname() returns 0 on success (csilvers)
	* LSS: Improved ARM support in linux-syscall-support (dougkwan)
	* LSS: Get rid of unused syscalls in linux-syscall-support (csilvers)
	* LSS: Fix broken mmap wrapping for ppc (markus)
	* LSS: Emit .cfi_adjust_cfa_offset when appropriate (ppluzhnikov)
	* LSS: Be more accurate in register use in __asm__ (markus)
	* LSS: Fix __asm__ calls to compile under clang (chandlerc)
	* LSS: Fix ARM inline assembly bug around r7 and swi (lcwu)
	* No longer log when an allocator fails (csilvers)
	* void* -> const void* for MallocExtension methods (llib)
	* Improve HEAP_PROFILE_MMAP and fix bugs with it (dmikurube)
	* Replace int-based abs with more correct fabs in a test (pmurin)

Thu Dec 22 16:22:45 2011    Google Inc. <opensource@google.com>

	* google-perftools: version 1.9 release
	* Lightweight check for double-frees (blount)
	* BUGFIX: Fix pprof to exit properly if run with no args (dagitses)
	* Suggest ASan as a way to diagnose buggy code (ppluzhnikov)
	* Get rid of unused CACHELINE_SIZE (csilvers)
	* Replace atexit() calls with global dtors; helps freebsd (csilvers)
	* Disable heap-checker under AddressSanitizer (kcc)
	* Fix bug in powerpc stacktracing (ppluzhnikov)
	* PERF: Use exponential backoff waiting for spinlocks (m3b)
	* Fix 64-bit nm on 32-bit binaries in pprof (csilvers)
	* Add ProfileHandlerDisallowForever (rsc)
	* BUGFIX: Shell escape when forking in pprof (csilvers)
	* No longer combine overloaded functions in pprof (csilvers)
	* Fix address-normalizing bug in pprof (csilvers)
	* More consistently call abort() instead of exit() on failure (csilvers)
	* Allow NoGlobalLeaks to be safely called more than once (csilvers)
	* PORTING/BUGFIX: Fix ARM cycleclock to use volatile asm (dougkwan)
	* PORTING: 64-bit atomic ops for ARMv7 (dougkwan)
	* PORTING: Implement stacktrace for ARM (dougkwan)
	* PORTING: Fix malloc_hook_mmap_linux for ARM (dougkwan)
	* PORTING: Update linux_syscall_support.h for ARM/etc (evannier, sanek)
	* PORTING: Fix freebsd to work on x86_64 (chapp...@gmail.com)
	* PORTING: Added additional SYS_mmap fixes for FreeBSD (chappedm)
	* PORTING: Allow us to compile on OS X 10.6 and run on 10.5 (raltherr)
	* PORTING: Check for mingw compilers that *do* define timespec
	* PORTING: Add "support" for MIPS cycletimer
	* PORTING: Fix fallback cycle-timer to work with Now (dougkwan)
	* PERF: Move stack trace collecting out of the mutex (taylorc)
	* PERF: Get the deallocation stack trace outside the mutex (sean)
	* Make PageHeap dynamically allocated for leak checks (maxim)
	* BUGFIX: Fix probing of nm -f behavior in pprof (dpeng)
	* BUGFIX: Fix a race with the CentralFreeList lock before main (sanjay)
	* Support /pprof/censusprofile url arguments (rajatjain)
	* Change IgnoreObject to return its argument (nlewycky)
	* Update malloc-hook files to support more CPUs
	* BUGFIX: write our own strstr to avoid libc problems (csilvers)
	* Use simple callgrind compression facility in pprof
	* Print an error message when we can't run pprof to symbolize (csilvers)
	* Die in configure when g++ is't installed (csilvers)
	* DOC: Beef up the documentation a bit about using libunwind (csilvers)

Fri Aug 26 13:29:25 2011    Google Inc. <opensource@google.com>

	* google-perftools: version 1.8.3 release
	* Added back the 'pthreads unsafe early' #define, needed for FreeBSD

Thu Aug 11 15:01:47 2011    Google Inc. <opensource@google.com>

	* google-perftools: version 1.8.2 release
	* Fixed calculation of patchlevel, 'make check' should all pass again

Tue Jul 26 20:57:51 2011    Google Inc. <opensource@google.com>

	* google-perftools: version 1.8.1 release
	* Added an #include to fix compile breakage on latest gcc's
	* Removed an extra , in the configure.ac script

Fri Jul 15 16:10:51 2011    Google Inc. <opensource@google.com>

	* google-perftools: version 1.8 release
	* PORTING: (Disabled) support for patching mmap on freebsd (chapp...)
	* PORTING: Support volatile __malloc_hook for glibc 2.14 (csilvers)
	* PORTING: Use _asm rdtsc and __rdtsc to get cycleclock in windows (koda)
	* PORTING: Fix fd vs. HANDLE compiler error on cygwin (csilvers)
	* PORTING: Do not test memalign or double-linking on OS X (csilvers)
	* PORTING: Actually enable TLS on windows (jontra)
	* PORTING: Some work to compile under Native Client (krasin)
	* PORTING: deal with pthread_once w/o -pthread on freebsd (csilvers)
	* Rearrange libc-overriding to make it easier to port (csilvers)
	* Display source locations in pprof disassembly (sanjay)
	* BUGFIX: Actually initialize allocator name (mec)
	* BUGFIX: Keep track of 'overhead' bytes in malloc reporting (csilvers)
	* Allow ignoring one object twice in the leak checker (glider)
	* BUGFIX: top10 in pprof should print 10 lines, not 11 (rsc)
	* Refactor vdso source files (tipp)
	* Some documentation cleanups
	* Document MAX_TOTAL_THREAD_CACHE_SIZE <= 1Gb (nsethi)
	* Add MallocExtension::GetOwnership(ptr) (csilvers)
	* BUGFIX: We were leaving out a needed $(top_srcdir) in the Makefile
	* PORTING: Support getting argv0 on OS X
	* Add 'weblist' command to pprof: like 'list' but html (sanjay)
	* Improve source listing in pprof (sanjay)
	* Cap cache sizes to reduce fragmentation (ruemmler)
	* Improve performance by capping or increasing sizes (ruemmler)
	* Add M{,un}mapReplacmenet hooks into MallocHook (ribrdb)
	* Refactored system allocator logic (gangren)
	* Include cleanups (csilvers)
	* Add TCMALLOC_SMALL_BUT_SLOW support (ruemmler)
	* Clarify that tcmalloc stats are MiB (robinson)
	* Remove support for non-tcmalloc debugallocation (blount)
	* Add a new test: malloc_hook_test (csilvers)
	* Change the configure script to be more crosstool-friendly (mcgrathr)
	* PORTING: leading-underscore changes to support win64 (csilvers)
	* Improve debugallocation tc_malloc_size (csilvers)
	* Extend atomicops.h and cyceclock to use ARM V6+ optimized code (sanek)
	* Change malloc-hook to use a list-like structure (llib)
	* Add flag to use MAP_PRIVATE in memfs_malloc (gangren)
	* Windows support for pprof: nul and /usr/bin/file (csilvers)
	* TESTING: add test on strdup to tcmalloc_test (csilvers)
	* Augment heap-checker to deal with no-inode maps (csilvers)
	* Count .dll/.dylib as shared libs in heap-checker (csilvers)
	* Disable sys_futex for arm; it's not always reliable (sanek)
	* PORTING: change lots of windows/port.h macros to functions
	* BUGFIX: Generate correct version# in tcmalloc.h on windows (csilvers)
	* PORTING: Some casting to make solaris happier about types (csilvers)
	* TESTING: Disable debugallocation_test in 'minimal' mode (csilvers)
	* Rewrite debugallocation to be more modular (csilvers)
	* Don't try to run the heap-checker under valgrind (ppluzhnikov)
	* BUGFIX: Make focused stat %'s relative, not absolute (sanjay)
	* BUGFIX: Don't use '//' comments in a C file (csilvers)
	* Quiet new-gcc compiler warnings via -Wno-unused-result, etc (csilvers)

Fri Feb 04 15:54:31 2011    Google Inc. <opensource@google.com>

	* google-perftools: version 1.7 release
	* Reduce page map key size under x86_64 by 4.4MB (rus)
	* Remove a flaky malloc-extension test (fdabek)
	* Improve the performance of PageHeap::New (ond..., csilvers)
	* Improve sampling_test with no-inline additions/etc (fdabek)
	* 16-byte align debug allocs (jyasskin)
	* Change FillProcSelfMaps to detect out-of-buffer-space (csilvers)
	* Document the need for sampling to use GetHeapSample (csilvers)
	* Try to read TSC frequency from tsc_freq_khs (adurbin)
	* Do better at figuring out if tests are running under gdb (ppluzhnikov)
	* Improve spinlock contention performance (ruemmler)
	* Better internal-function list for pprof's /contention (ruemmler)
	* Speed up GoogleOnce (m3b)
	* Limit number of incoming/outgoing edges in pprof (sanjay)
	* Add pprof --evince to go along with --gv (csilvers)
	* Document the various ways to get heap-profiling information (csilvers)
	* Separate out synchronization profiling routines (ruemmler)
	* Improve malloc-stats output to be more understandable (csilvers)
	* Add support for census profiler in pporf (nabeelmian)
	* Document how pprof's /symbol must support GET requests (csilvers)
	* Improve acx_pthread.m4 (ssuomi, liujisi)
	* Speed up pprof's ExtractSymbols (csilvers)
	* Ignore some known-leaky (java) libraries in the heap checker (davidyu)
	* Make kHideMask use all 64 bits in tests (ppluzhnikov)
	* Clean up pprof input-file handling (csilvers)
	* BUGFIX: Don't crash if __environ is NULL (csilvers)
	* BUGFIX: Fix totally broken debugallocation tests (csilvers)
	* BUGFIX: Fix up fake_VDSO handling for unittest (ppluzhnikov)
	* BUGFIX: Suppress all large allocs when report threshold is 0 (lexie)
	* BUGFIX: mmap2 on i386 takes an off_t, not off64_t (csilvers)
	* PORTING: Add missing PERFTOOLS_DLL_DECL (csilvers)
	* PORTING: Add stddef.h to make newer gcc's happy (csilvers)
	* PORTING: Document some tricks for working under OS X (csilvers)
	* PORTING: Don't try to check valgrind for windows (csilvers)
	* PORTING: Make array-size a var to compile under clang (chandlerc)
	* PORTING: No longer hook _aligned_malloc and _aligned_free (csilvers)
	* PORTING: Quiet some gcc warnings (csilvers)
	* PORTING: Replace %PRIxPTR with %p to be more portable (csilvers)
	* PORTING: Support systems that capitalize /proc weirdly (sanek)
	* PORTING: Treat arm3 the same as arm5t in cycletimer (csilvers)
	* PORTING: Update windows logging to not allocate memory (csilvers)
	* PORTING: avoid double-patching newer windows DLLs (roger.orr)
	* PORTING: get dynamic_annotations.c to work on windows (csilvers)
	* Add pkg-config .pc files for the 5 libraries we produce (csilvers)
	* Added proper libtool versioning, so this lib will be 0.1.0 (csilvers)
	* Moved from autoconf 2.64 to 2.65

Thu Aug  5 12:48:03 PDT 2010  Google Inc. <opensource@google.com>

	* google-perftools: version 1.6 release
	* Add tc_malloc_usable_size for compatibility with glibc (csilvers)
	* Override malloc_usable_size with tc_malloc_usable_size (csilvers)
	* Default to no automatic heap sampling in tcmalloc (csilvers)
	* Add -DTCMALLOC_LARGE_PAGES, a possibly faster tcmalloc (rus)
	* Make some functions extern "C" to avoid false ODR warnings (jyasskin)
	* pprof: Add SVG-based output (rsc)
	* pprof: Extend pprof --tools to allow per-tool configs (csilvers)
	* pprof: Improve support of 64-bit and big-endian profiles (csilvers)
	* pprof: Add interactive callgrind suport (weidenri...)
	* pprof: Improve address->function mapping a bit (dpeng)
	* Better detection of when we're running under valgrind (csilvers)
	* Better CPU-speed detection under valgrind (saito)
	* Use, and recommend, -fno-builtin-malloc when compiling (csilvers)
	* Avoid false-sharing of memory between caches (bmaurer)
	* BUGFIX: Fix heap sampling to use correct alloc size (bmauer)
	* BUGFIX: Avoid gcc 4.0.x bug by making hook-clearing atomic (csilvers)
	* BUGFIX: Avoid gcc 4.5.x optimization bug (csilvers)
	* BUGFIX: Work around deps-determining bug in libtool 1.5.26 (csilvers)
	* BUGFIX: Fixed test to use HAVE_PTHREAD, not HAVE_PTHREADS (csilvers)
	* BUGFIX: Fix tls callback behavior on windows when using wpo (wtc)
	* BUGFIX: properly align allocation sizes on Windows (antonm)
	* BUGFIX: Fix prototypes for tcmalloc/debugalloc wrt throw() (csilvers)
	* DOC: Updated heap-checker doc to match reality better (fischman)
	* DOC: Document ProfilerFlush, ProfilerStartWithOptions (csilvers)
	* DOC: Update docs for heap-profiler functions (csilvers)
	* DOC: Clean up documentation around tcmalloc.slack_bytes (fikes)
	* DOC: Renamed README.windows to README_windows.txt (csilvers)
	* DOC: Update the NEWS file to be non-empty (csilvers)
	* PORTING: Fix windows addr2line and nm with proper rc code (csilvers)
	* PORTING: Add CycleClock and atomicops support for arm 5 (sanek)
	* PORTING: Improve PC finding on cygwin and redhat 7 (csilvers)
	* PORTING: speed up function-patching under windows (csilvers)

Tue Jan 19 14:46:12 2010  Google Inc. <opensource@google.com>

	* google-perftools: version 1.5 release
	* Add tc_set_new_mode (willchan)
	* Make memalign functions + realloc respect tc_set_new_mode (willchan)
	* Add ReleaseToSystem(num_bytes) (kash)
	* Handle zero-length symbols a bit better in pprof (csilvers)
	* Prefer __environ to /proc/self/environ in cpu profiler (csilvers)
	* Add HEAP_CHECK_MAX_LEAKS flag to control #leaks to report (glider)
	* Add two new numeric pageheap properties to MallocExtension (fikes)
	* Print alloc size when mmap fails (hakon)
	* Add ITIMER_REAL support to cpu profiler (csilvers, nabeelmian)
	* Speed up symbolizer in heap-checker reporting (glider)
	* Speed up futexes with FUTEX_PRIVATE_FLAG (m3b)
	* Speed up tcmalloc but doing better span coalescing (sanjay)
	* Better support for different wget's and addr2maps in pprof (csilvres)
	* Implement a nothrow version of delete and delete[] (csilvers)
	* BUGFIX: fix a race on module_libcs[i] in windows patching (csilvers)
	* BUGFIX: Fix debugallocation to call cpp_alloc for new (willchan)
	* BUGFIX: A simple bugfix for --raw mode (mrabkin)
	* BUGFIX: Fix C shims to actually be valid C (csilvers)
	* BUGFIX: Fix recursively-unmapped-region accounting (ppluzhnikov)
	* BUGFIX: better distinguish real and fake vdso (ppluzhnikov)
	* WINDOWS: replace debugmodule with more reliable psai (andrey)
	* PORTING: Add .bundle as another shared library extension (csilvers)
	* PORTING: Fixed a typo bug in the ocnfigure PRIxx m4 macro (csilvers)
	* PORTING: Augment sysinfo to work on 64-bit OS X (csilvers)
	* PORTING: Use sys/ucontext.h to fix compiing on OS X 10.6 (csilvers)
	* PORTING: Fix sysinfo libname reporting for solaris x86 (jeffrey)
	* PORTING: Use libunwind for i386 when using --omitfp (ppluzhnikov)
	
Thu Sep 10 13:51:15 2009  Google Inc. <opensource@google.com>

	* google-perftools: version 1.4 release
	* Add debugallocation library, to catch memory leaks, stomping, etc
	* Add --raw mode to allow for delayed processing of pprof files
	* Use less memory when reading CPU profiles
	* New environment variables to control kernel-allocs (sbrk, memfs, etc)
	* Add MarkThreadBusy(): performance improvement
	* Remove static thread-cache-size code; all is dynamic now
	* Add new HiddenPointer class to heap checker
	* BUGFIX: pvalloc(0) allocates now (found by new debugalloc library)
	* BUGFIX: valloc test (not implementation) no longer overruns memory
	* BUGFIX: GetHeapProfile no longer deadlocks
	* BUGFIX: Support unmapping memory regions before main
	* BUGFIX: Fix some malloc-stats formatting
	* BUGFIX: Don't crash as often when freeing libc-allocated memory
	* BUGFIX: Deal better with incorrect PPROF_PATH when symbolizing
	* BUGFIX: weaken new/delete/etc in addition to malloc/free/etc
	* BUGFIX: Fix return value of GetAllocatedSize
	* PORTING: Fix mmap-#define problem on some 64-bit systems
	* PORTING: Call ranlib again (some OS X versions need it)
	* PORTING: Fix a leak when building with LLVM
	* PORTING: Remove some unneeded bash-ishs from testing scripts
	* WINDOWS: Support library unloading as well as loading
	* WINDOWS/BUGFIX: Set page to 'xrw' instead of 'rw' when patching
	
Tue Jun  9 18:19:06 2009  Google Inc. <opensource@google.com>

	* google-perftools: version 1.3 release
	* Provide our own name for memory functions: tc_malloc, etc (csilvers)
	* Weaken memory-alloc functions so user can override them (csilvers)
	* Remove meaningless delete(nothrow) and delete[](nothrow) (csilvers)
	* BUILD: replace clever libtcmalloc/profiler.a with a new .a (csilvers)
	* PORTING: improve windows port  by using google spinlocks (csilvers)
	* PORTING: Fix RedHat 9 memory allocation in heapchecker (csilvers)
	* PORTING: Rename OS_WINDOWS macro to PLATFORM_WINDOWS (mbelshe)
	* PORTING/BUGFIX: Make sure we don't clobber GetLastError (mbelshe)
	* BUGFIX: get rid of useless data for callgrind (weidenrinde)
	* BUGFIX: Modify windows patching to deadlock sometimes (csilvers)
	* BUGFIX: an improved fix for hook handling during fork (csilvers)
	* BUGFIX: revamp profiler_unittest.sh, which was very broken (csilvers)
	
Fri Apr 17 16:40:48 2009  Google Inc. <opensource@google.com>

	* google-perftools: version 1.2 release
	* Allow large_alloc_threshold=0 to turn it off entirely (csilvers)
	* Die more helpfully when out of memory for internal data (csilvers)
	* Refactor profile-data gathering, add a new unittest (cgd, nabeelmian)
	* BUGFIX: fix rounding errors with static thread-size caches (addi)
	* BUGFIX: disable hooks better when forking in leak-checker (csilvers)
	* BUGFIX: fix realloc of crt pointers on windows (csilvers)
	* BUGFIX: do a better job of finding binaries in .sh tests (csilvers)
	* WINDOWS: allow overriding malloc/etc instead of patching (mbelshe)
	* PORTING: fix compilation error in a ppc-specific file (csilvers)
	* PORTING: deal with quirks in cygwin's /proc/self/maps (csilvers)
	* PORTING: use 'A' version of functions for ascii input (mbelshe)
	* PORTING: generate .so's on cygwin and mingw (ajenjo)
	* PORTING: disable profiler methods on cygwin (jperkins)
	* Updated autoconf version to 2.61 and libtool version to 1.5.26

Wed Mar 11 11:25:34 2009  Google Inc. <opensource@google.com>

	* google-perftools: version 1.1 release
	* Dynamically resize thread caches -- nice perf. improvement (kash)
	* Add VDSO support to give better stacktraces in linux (ppluzhnikov)
	* Improve heap-profiling sampling algorithm (ford)
	* Rewrite leak-checking code: should be faster and more robust (sanjay)
	* Use ps2 instead of ps for dot: better page cropping for gv (csilvers)
	* Disable malloc-failure warning messages by default (csilvers)
	* Update config/Makefile to disable tests on a per-OS basis (csilvers)
	* PORTING: Get perftools compiling under MSVC 7.1 again (csilvers)
	* PORTING: Get perftools compiling under cygwin again (csilvers)
	* PORTING: automatically set library flags for solaris x86 (csilvers)
	* Add TCMALLOC_SKIP_SBRK to mirror TCMALLOC_SKIP_MMAP (csilvers)
	* Add --enable flags to allow selective building (csilvers)
	* Put addr2line-pdb and nm-pdb in proper output directory (csilvers)
	* Remove deprecated DisableChecksIn (sanjay)
	* DOCUMENTATION: Document most MallocExtension routines (csilvers)
	
Tue Jan  6 13:58:56 2009  Google Inc. <opensource@google.com>

	* google-perftools: version 1.0 release
	* Exactly the same as 1.0rc2

Sun Dec 14 17:10:35 2008  Google Inc. <opensource@google.com>

	* google-perftools: version 1.0rc2 release
	* Fix compile error on 64-bit systems (casting ptr to int) (csilvers)

Thu Dec 11 16:01:32 2008  Google Inc. <opensource@google.com>

	* google-perftools: version 1.0rc1 release
	* Replace API for selectively disabling heap-checker in code (sanjay)
	* Add a pre-mmap hook (daven, adlr)
	* Add MallocExtension interface to set memory-releasing rate (fikes)
	* Augment pprof to allow any string ending in /pprof/profile (csilvers)
	* PORTING: Rewrite -- and fix --  malloc patching for windows (dvitek)
	* PORTING: Add nm-pdb and addr2line-pdb for use by pprof (dvitek)
	* PORTING: Improve cygwin and mingw support (jperkins, csilvers)
	* PORTING: Fix pprof for mac os x, other pprof improvements (csilvers)
	* PORTING: Fix some PPC bugs in our locking code (anton.blanchard)
	* A new unittest, smapling_test, to verify tcmalloc-profiles (csilvers)
	* Turn off TLS for gcc < 4.1.2, due to a TLS + -fPIC bug (csilvers)
	* Prefer __builtin_frame_address to assembly for stacktraces (nlewycky)
	* Separate tcmalloc.cc out into multiple files -- finally! (kash)
	* Make our locking code work with -fPIC on 32-bit x86 (aruns)
	* Fix an initialization-ordering bug for tcmalloc/profiling (csilvers)
	* Use "initial exec" model of TLS to speed up tcmalloc (csilvers)
	* Enforce 16-byte alignment for tcmalloc, for SSE (sanjay)
	
Tue Sep 23 08:56:31 2008  Google Inc. <opensource@google.com>

	* google-perftools: version 0.99.2 release
	* COMPILE FIX: add #include needed for FreeBSD and OS X (csilvers)

Sat Sep 20 09:37:18 2008  Google Inc. <opensource@google.com>

	* google-perftools: version 0.99.1 release
	* BUG FIX: look for nm, etc in /usr/bin, not /usr/crosstool (csilvers)

Thu Sep 18 16:00:27 2008  Google Inc. <opensource@google.com>

	* google-perftools: version 0.99 release
	* Add IsHeapProfileRunning (csilvers)
	* Add C shims for some of the C++ header files (csilvers)
	* Fix heap profile file clean-up logic (maxim)
	* Rename linuxthreads.c to .cc for better compiler support (csilvers)
	* Add source info to disassembly in pprof (sanjay)
	* Use open instead of fopen to avoid memory alloc (csilvers)
	* Disable malloc extensions when running under valgrind (kcc)
	* BUG FIX: Fix out-of-bound error by reordering a check (larryz)
	* Add Options struct to ProfileData (cgd)
	* Correct PC-handling of --base in pprof (csilvers)
	* Handle 1 function occurring twice in an image (sanjay)
	* Improve stack-data cleaning (maxim)
	* Use 'struct Foo' to make header C compatible (csilvers)
	* Add 'total' line to pprof --text (csilvers)
	* Pre-allocate buffer for heap-profiler to avoid OOM errors (csilvers)
	* Allow a few more env-settings to control tcmalloc (csilvers)
	* Document some of the issues involving thread-local storage (csilvers)
	* BUG FIX: Define strtoll and friends for windows (csilvers)

Mon Jun  9 16:47:03 2008  Google Inc. <opensource@google.com>

	* google-perftools: version 0.98 release
	* Add ProfilerStartWithOptions() (cgd)
	* Change tcmalloc_minimal to not do any stack-tracing at all (csilvers)
	* Prefer mmap to sbrk for 64-buit debug mode (sanjay)
	* Fix accounting for some tcmalloc stats (sanjay)
	* Use setrlimit() to keep unittests from killing the machine (odo)
	* Fix a bug when sbrk-ing near address 4G (csilvers)
	* Make MallocHook thread-safe (jyasskin)
	* Fix windows build for MemoryBarrier (jyasskin)
	* Fix CPU-profiler docs to mention correct libs (csilvers)
	* Fix for GetHeapProfile() when heap-profiling is off (maxim)
	* Avoid realloc resizing ping-pongs using hysteresis (csilvers)
	* Add --callgrind output support to pprof (klimek)
	* Fix profiler.h and heap-profiler.h to be C-compatible (csilvers)
	* Break malloc_hook.h into two parts to reduce dependencies (csilvers)
	* Better handle systems that don't implement mmap (csilvers)
	* PORTING: disable system_alloc_unittest for msvc (csilvers)
	* PORTING: Makefile tweaks to build better on cygwin (csilvers)
	
Mon Apr 21 15:20:52 2008  Google Inc. <opensource@google.com>

	* google-perftools: version 0.97 release
	* Refactor GetHeapProfile to avoid using malloc (maxim)
	* Fix heap-checker and heap-profiler hook interactions (maxim)
	* Fix a data race in MemoryRegionMap::Lock (jyasskin)
	* Improve thread-safety of leak checker (maxim)
	* Fix mmap profile to no longer deadlock (maxim)
	* Fix rpm to have devel package depend on non-devel (csilvers)
	* PORTING: Fix clock-speed detection for Mac OS X (csilvers)

Tue Mar 18 14:30:44 2008  Google Inc. <opensource@google.com>

	* google-perftools: version 0.96 release
	* major atomicops rewrite; fixed atomic ops code for linux/ppc (vchen)
	* nix the stacktrace library; now build structure is simpler (csilvers)
	* Speed up heap-checker, and reduce extraneous logging (maxim)
	* Improve itimer code for NPTL case (cgd)
	* Add source code annotations for use by valgrind, etc (kcc)
	* PORTING: Fix high resolution timers for Mac OS X (adlr)

Tue Feb 19 12:01:31 2008  Google Inc. <opensource@google.com>

	* google-perftools: version 0.95.1 release  (bugfix release)
	* x86_64 compile-fix: nix pread64 and pwrite64 (csilvers)
	* more heap-checker debug logging (maxim)
	* minor improvement to x86_64 CycleClock (gpike)

Tue Feb 12 12:28:32 2008  Google Inc. <opensource@google.com>

	* google-perftools: version 0.95 release
	* Better -- not perfect -- support for linux-ppc (csilvers)
	* Fix race condition in libunwind stacktrace (aruns)
	* Speed up x86 spinlock locking (m3b)
	* Improve heap-checker performance (maxim)
	* Heap checker traverses more ptrs inside heap-alloced objects (maxim)
	* Remove deprecated ProfilerThreadState function (cgd)
	* Update libunwind documentation for statically linked binaries (aruns)

Mon Dec  3 23:51:54 2007  Google Inc. <opensource@google.com>

	* google-perftools: version 0.94.1 release  (bugfix release)
	* Fix missing #includes for x86_64 compile using libunwind (csilvers)

Thu Nov 29 07:59:43 2007  Google Inc. <opensource@google.com>

	* google-perftools: version 0.94 release
	* PORTING: MinGW/Msys support -- runs same code as MSVC does (csilvers)
	* PORTING: Add NumCPUs support for Mac OS X (csilvers)
	* Work around a sscanf bug in glibc(?) (waldemar)
	* Fix Windows MSVC bug triggered by thread deletion (csilvers)
	* Fix bug that triggers in MSVC /O2: missing volatile (gpike)
	* March-of-time support: quiet warnings/errors for gcc 4.2, OS X 10.5
	* Modify pprof so it works without nm: useful for windows (csilvers)
	* pprof: Support filtering for CPU profiles (cgd)
	* Bugfix: have realloc report to hooks in all situations (maxim)
	* Speed improvement: replace slow memcpy with std::copy (soren)
	* Speed: better iterator efficiency in RecordRegionRemoval (soren)
	* Speed: minor speed improvements via better bitfield alignment (gpike)
	* Documentation: add documentation of binary profile output (cgd)
	
Fri Aug 17 12:32:56 2007  Google Inc. <opensource@google.com>

	* google-perftools: version 0.93 release
	* PORTING: everything compiles on Solaris, OS X, FreeBSD (see INSTALL)
	* PORTING: cpu-profiler works on most platforms (much better GetPC())
	* PORTING: heap-profiler works on most platforms
	* PORTING: improved windows support, including release builds
	* No longer build or run ptmalloc tests by default
	* Add support for using memfs filesystem to allocate memory in linux
	* WINDOWS: give debug library and release library different names
	
Tue Jul 17 22:26:27 2007  Google Inc. <opensource@google.com>

	* google-perftools: version 0.92 release
	* PERFORMANCE: use a packed cache to speed up tcmalloc
	* PORTING: preliminary windows support! (see README.windows)
	* PORTING: better support for solaris, OS X, FreeBSD (see INSTALL)
	* Envvar support for running the heap-checker under gdb
	* Add weak declarations to maybe_threads to fix no-pthreads compile bugs
	* Some 64bit fixes, especially with pprof
	* Better heap-checker support for some low-level allocations
	* Fix bug where heap-profiles would sometimes get truncated
	* New documentation about how to handle common heap leak situations
	* Use computed includes for hash_map/set: easier config
	* Added all used .m4 templates to the distribution

Wed Apr 18 16:43:55 2007  Google Inc. <opensource@google.com>

	* google-perftools: version 0.91 release
	* Brown-paper-bag bugfix: compilation error on some x86-64 machines

Fri Apr 13 14:50:51 2007  Google Inc. <opensource@google.com>

	* google-perftools: version 0.90 release
	* (As the version-number jump hints, this is a major new release:
	  almost every piece of functionality was rewritten.  I can't do
	  justice to all the changes, but will concentrate on highlights.)
	*** USER-VISIBLE CHANGES:
	* Ability to "release" unused memory added to tcmalloc
	* Exposed more tweaking knobs via environment variables (see docs)
	* pprof tries harder to map addresses to functions
	* tcmalloc_minimal compiles and runs on FreeBSD 6.0 and Solaris 10
	*** INTERNAL CHANGES:
	* Much better 64-bit support
	* Better multiple-processor support (e.g. multicore contention tweaks)
	* Support for recent kernel ABI changes (e.g. new arg to mremap)
	* Addition of spinlocks to tcmalloc to reduce contention cost
	* Speed up tcmalloc by using __thread on systems that support TLS
	* Total redesign of heap-checker to improve liveness checking
	* More portable stack-frame analysis -- no more hard-coded constants!
	* Disentangled heap-profiler code and heap-checker code
	* Several new unittests to test, e.g., thread-contention costs
	* Lots of small (but important!) bug fixes: e.g., fixing GetPC on amd64
	*** KNOWN PROBLEMS:
	* CPU-profiling may crash on x86_64 (64-bit) systems.  See the README
	* Profiling/heap-checking may deadlock on x86_64 systems.  See README

Wed Jun 14 15:11:14 2006  Google Inc. <opensource@google.com>

	* google-perftools: version 0.8 release
	* Experimental support for remote profiling added to pprof (many)
	* Fixed race condition in ProfileData::FlushTable (etune)
	* Better support for weird /proc maps (maxim, mec)
	* Fix heap-checker interaction with gdb (markus)
	* Better 64-bit support in pprof (aruns)
	* Reduce scavenging cost in tcmalloc by capping NumMoveSize (sanjay)
	* Cast syscall(SYS_mmap); works on more 64-bit systems now (menage)
	* Document the text output of pprof! (csilvers)
	* Better compiler support for no-THREADS and for old compilers (csilvers)
	* Make libunwind the default stack unwinder for x86-64 (aruns)
	* Somehow the COPYING file got erased.  Regenerate it (csilvers)

Thu Apr 13 20:59:09 2006  Google Inc. <opensource@google.com>

	* google-perftools: version 0.7 release
	* Major rewrite of thread introspection for new kernels (markus)
	* Major rewrite of heap-checker to use new thread tools (maxim)
	* Add proper support for following data in thread registers (maxim)
	* Syscall support for older kernels, including _syscall6 (markus)
	* Support PIC mode (markus, mbland, iant)
	* Better support for running in non-threaded contexts (csilvers)

Fri Jan 27 14:04:27 2006  Google Inc. <opensource@google.com>

	* google-perftools: version 0.6 release
	* More sophisticated stacktrace usage, possibly using libunwind (aruns)
	* Update pprof to handle 64-bit profiles (dehnert)
	* Fix GetStackTrace to correctly return top stackframe (sanjay)
	* Add ANSI compliance for new and new[], including new_handler (jkearney)
	* More accuracy by reading ELF files directly rather than objdump (mec)
	* Add readline support for pprof (addi)
	* Add #includes for PPC (csilvers)
	* New PC-detection routine for ibook powerpc (asbestoshead)
	* Vastly improved tcmalloc unittest (csilvers)
	* Move documentation from /usr/doc to /usr/share/doc

Mon Nov 14 17:28:59 2005  Google Inc. <opensource@google.com>

	* google-perftools: version 0.5 release
	* Add va_start/va_end calls around vsnprintf() (csilvers)
	* Write our own __syscall_return(), since it's not defined
	  consistently on all 64-bit linux distros (markus)

Wed Oct 26 15:19:16 2005  Google Inc. <opensource@google.com>

	* google-perftools: version 0.4 release
	* Decrease fragmentation in tcmalloc (lefevere)
	* Support for ARM in some of the thread-specific code (markus)
	* Turn off heap-checker for statically-linked binaries, which
	  cause error leak reports now (etune)
	* Many pprof improvements, including a command-line interface (jeff)
	* CPU profiling now automatically affects all threads in linux 2.6.
	  (Kernel bugs break CPU profiling and threads in linux 2.4 a bit.)
	  ProfilerEnable() and ProfilerDisable() are deprecated.  (sanjay)
	* tcmalloc now correctly intercepts memalign (m3b, maxim)
	* Syntax fix: added missing va_end()s.  Helps non-gcc compiling (etune)
	* Fixed a few coredumper bugs: race condition after PTRACE_DETACH,
	  ignore non-aligned stackframe pointers (markus, menage)
	* 64-bit cleanup, especially for spinlock code (etune) and mmap (sanjay)
	* Better support for finding threads in linux (markus)
	* tcmalloc now tracks those stack traces that allocate memory (sanjay)
	* Work around a weird setspecific problem (sanjay)
	* Fix tcmalloc overflow problems when an alloc is close to 2G/4G (sanjay)

Fri Jun 24 18:02:26 2005  Google Inc. <opensource@google.com>

	* google-perftools: version 0.3 release
	* Add missing errno include for one of the unittests (csilvers)
	* Reduce tcmalloc startup memory from 5M to 256K (sanjay)
	* Add support for mallopt() and mallinfo (sanjay)
	* Improve stacktrace's performance on some 64-bit systems (etune)
	* Improve the stacktrace unittest (etune)

Tue May 31 08:14:38 2005  Google Inc. <opensource@google.com>

	* google-perftools: version 0.2 release
	* Use mmap2() instead of mmap(), to map more memory (menage)
	* Do correct pthread-local checking in heap-checker! (maxim)
	* Avoid overflow on 64-bit machines in pprof (sanjay)
	* Add a few more GetPC() functions, including for AMD (csilvers)
	* Better method for overriding pthread functions (menage)
	* (Hacky) fix to avoid overwriting profile files after fork() (csilvers)
	* Crashing bugfix involving dumping heaps on small-stack threads (tudor)
	* Allow library versions with letters at the end (csilvers)
	* Config fixes for systems that don't define PATH_MAX (csilvers)
	* Confix fixes so we no longer need config.h after install (csilvers)
	* Fix to pprof to correctly read very big cpu profiles (csilvers)
	* Fix to pprof to deal with new commandline flags in modern gv's
	* Better error reporting when we can't access /proc/maps (etune)
	* Get rid of the libc-preallocate code (which could crash on some
	  systems); no longer needed with local-threads fix (csilvers)

Tue Feb 8 09:57:17 2005  Google Inc. <opensource@google.com>

	* google-perftools: initial release:
	  The google-perftools package contains some utilities to improve
	  and analyze the performance of C++ programs.  This includes an
	  optimized thread-caching malloc() and cpu and heap profiling
	  utilities.