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libitm: Work around assembler missing AVX insns.
[pf3gnuchains/gcc-fork.git] / libitm / ChangeLog
1 2011-11-09  Richard Henderson  <rth@redhat.com>
2
3         * acinclude.m4 (LIBITM_CHECK_AS_AVX): New.
4         * configure.ac: Use it.
5         * config.h.in, configure: Rebuild.
6         * config/x86/x86_avx.cc: Handle !HAVE_AS_AVX.
7
8 2011-11-09  Richard Henderson  <rth@redhat.com>
9
10         * barrier.tpl, memcpy.cc, memset.cc, method-wbetl.cc: Remove file.
11         * config/alpha/unaligned.h: Remove file.
12         * config/generic/unaligned.h: Remove file.
13         * config/x86/unaligned.h: Remove file.
14         * config/generic/cachepage.h: Remove file.
15         * config/posix/cachepage.cc: Remove file.
16         * config/generic/cacheline.cc: Remove file.
17         * config/x86/cacheline.cc: Remove file.
18         * config/generic/cacheline.h (gtm_cacheline): Remove the
19         store_mask, copy_mask, copy_mask_wb methods.
20         * config/x86/cacheline.h: Likewise.
21         * config/alpha/cacheline.h: Fall back to generic after setting size.
22         * config/generic/tls.cc (gtm_mask_stack): Remove.
23         * config/x86/x86_avx.cc (GTM_vpperm_shift): Remove.
24         (GTM_vpalignr_table): Remove.
25         * config/x86/x86_sse.cc (GTM_palignr_table): Remove.
26         (GTM_pshift_table): Remove.
27         * config/libitm_i.h: Don't include cachepage.h.
28         * Makefile.am (libitm_la_SOURCES): Remove cacheline.cc, cachepage.cc
29         * Makefile.in, testsuite/Makefile.in: Rebuild.
30
31 2011-11-09  Richard Henderson  <rth@redhat.com>
32
33         * config/x86/cacheline.h (gtm_cacheline::store_mask): Use .byte
34         to emit branch prediction hint.
35
36         * config/x86/sjlj.S: Protect elf directives with __ELF__.
37         Protect .note.GNU-stack with __linux__.
38
39         * configure.ac (GCC_AS_CFI_PSEUDO_OP): Test it.
40         * configure, aclocal.m4, config.h.in: Rebuild.
41         * config/generic/asmcfi.h: New file.
42         * config/x86/sjlj.S: Use it.
43
44 2011-11-08  Richard Henderson  <rth@redhat.com>
45
46         * local.cc (_ITM_LB): Use a normal call, not a function alias.
47
48 2011-11-08  Richard Henderson  <rth@redhat.com>
49
50         * configure.tgt: Test correct directory for supported cpus.
51
52         * configure.ac: Exit if unsupported.
53         * configure: Rebuild.
54         * configure.tgt: Delete boilerplate from libgomp for unsupported
55         targets.  Set UNSUPPORTED for unsupported targets.
56
57 2011-11-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
58
59         * configure.tgt: Handle i386 like i[456]86.
60         * config/generic/tls.h [!HAVE_ARCH_GTM_THREAD] (gtm_thr): Don't
61         take address.
62         * config/generic/tls.cc [!HAVE_ARCH_GTM_THREAD ||
63         !HAVE_ARCH_GTM_THREAD_DISP] (_gtm_thr_tls): New variable.
64
65 2011-11-05  Aldy Hernandez  <aldyh@redhat.com>
66
67         * method-wbetl.cc: Update copyright notice.
68         * aatree.cc: Same.
69         * util.cc: Same.
70         * libitm.h: Same.
71         * memset.cc: Same.
72         * eh_cpp.cc: Same.
73         * barrier.tpl: Same.
74         * useraction.cc: Same.
75         * stmlock.h: Same.
76         * memcpy.cc: Same.
77         * common.h: Same.
78         * config/generic/tls.cc: Same.
79         * config/generic/cacheline.h: Same.
80         * config/generic/cachepage.h: Same.
81         * config/generic/cacheline.cc: Same.
82         * config/generic/unaligned.h: Same.
83         * config/x86/cacheline.h: Same.
84         * config/x86/cacheline.cc: Same.
85         * config/x86/unaligned.h: Same.
86         * config/alpha/cacheline.h: Same.
87         * config/alpha/unaligned.h: Same.
88         * config/alpha/sjlj.S: Same.
89         * config/posix/cachepage.cc: Same.
90         * config/linux/futex.h: Same.
91         * config/linux/alpha/futex_bits.h: Same.
92
93 2011-11-04  Torvald Riegel  <triegel@redhat.com>
94
95         * libitm.texi: No cover text and invariant sections.
96
97 2011-11-03  Richard Henderson  <rth@redhat.com>
98
99         * local_type_traits: New file.
100         * libitm_i.h: Use it.  Use C headers, not C++ wrappers.
101
102 2011-11-03  Richard Henderson  <rth@redhat.com>
103
104         * configure.ac: Don't test for gfortran.
105         * configure: Rebuild.
106
107         * testsuite/lib/libitm.exp: Don't include gfortran-dg.exp.
108         * testsuite/libitm.c++/c++.exp: Don't use gfortran-dg-runtest.
109
110 2011-11-03  Aldy Hernandez  <aldyh@redhat.com>
111
112         * testsuite/libitm.c/memcpy-1.c: Add copyright notice.
113         * testsuite/libitm.c/memset-1.c: Same.
114         * testsuite/libitm.c/c.exp: Same.
115         * testsuite/lib/libitm-dg.exp: Same.
116         * testsuite/lib/libitm.exp: Same.
117         * testsuite/libitm.c++/c++.exp: Same.
118
119 2011-11-03  Aldy Hernandez  <aldyh@redhat.com>
120
121         * testsuite/config/default.exp: Update copyright date.
122         * configure.ac: Add copyright info.
123         * configure.tgt: Same.
124
125 2011-11-03  Aldy Hernandez  <aldyh@redhat.com>
126
127         * testsuite/libitm.c/reentrant.c: XFAIL.
128         * testsuite/libitm.c++/static_ctor.C: XFAIL.
129
130 2011-10-29  Torvald Riegel  <triegel@redhat.com>
131
132         * beginend.cc (GTM::gtm_thread::rollback): Add aborting flag and
133         handle aborts.
134         (_ITM_abortTransaction): Handle aborts of outer transactions.
135         * libitm_i.h: Same.
136         * eh_cpp.cc (GTM::gtm_thread::revert_cpp_exceptions): Fix assertion.
137         * libitm.texi: Document aborts of outer transactions.
138         * testsuite/libitm.c/cancel.c: New file.
139
140 2011-10-19  Torvald Riegel  <triegel@redhat.com>
141
142         * testsuite/*: Change __transaction to __transaction_atomic or
143         __transaction_relaxed.
144
145 2011-10-19  Torvald Riegel  <triegel@redhat.com>
146
147         * config/linux/x86/tls.h (abi_disp): Make TLS slot read volatile.
148         (gtm_thr): Same.
149
150 2011-10-19  Torvald Riegel  <triegel@redhat.com>
151
152         * libitm_i.h: Add gl_wt dispatch.
153         * retry.cc (parse_default_method): Same.
154         * method-gl.cc: New file.
155         * Makefile.am: Use method-gl.cc.
156         * Makefile.in: Rebuild.
157
158 2011-10-19  Torvald Riegel  <triegel@redhat.com>
159
160         * beginend.cc (GTM::gtm_thread::trycommit): Ensure privatization
161         safety if requested by a TM method.
162         * dispatch.h (GTM::abi_dispatch::trycommit): Add parameter for
163         privatization safety.
164         * method-serial.cc: Same.
165
166 2011-10-19  Torvald Riegel  <triegel@redhat.com>
167
168         * libitm_i.h: Renamed gtm_local_undo to gtm_undolog_entry.
169         (GTM::gtm_thread): Renamed local_undo to undolog. Renamed
170         undolog-related member functions from *_local to *_undolog.
171         * local.cc (gtm_thread::commit_undolog): Same.
172         * beginend.cc (GTM::gtm_thread::trycommit): Same.
173         (GTM::gtm_thread::rollback): Roll back undolog before
174         dispatch-specific rollback.
175
176 2011-10-19  Torvald Riegel  <triegel@redhat.com>
177
178         * retry.cc (GTM::gtm_thread::decide_retry_strategy): Handle
179         re-initialization of the current method group.
180         * libitm_i.h (GTM::gtm_restart_reason): Add restart reason for this.
181
182 2011-10-19  Torvald Riegel  <triegel@redhat.com>
183
184         * alloc.cc (commit_allocations_2): Do not free transaction-local
185         memory when committing a nested transaction.
186
187 2011-10-19  Torvald Riegel  <triegel@redhat.com>
188
189         * method-serial.cc (GTM::gtm_thread::serialirr_mode): Fixed: Use
190         serial-irrevocable dispatch, not serial.
191
192 2011-10-19  Torvald Riegel  <triegel@redhat.com>
193
194         * libitm_i.h (GTM::gtm_restart_reason): Re-arrange and clean up
195         declarations.
196         * dispatch.h (GTM::abi_dispatch::begin_or_restart): New.
197         * method-serial.cc: Implement begin_or_restart().
198         * beginend.cc (GTM::gtm_thread::begin_transaction): Call
199         dispatch-specific begin_or_restart().
200         (GTM::gtm_thread::restart): Same.
201
202 2011-08-23  Torvald Riegel  <triegel@redhat.com>
203
204         * retry.cc (GTM::gtm_thread::decide_retry_strategy): Cleanup. Fix
205         restarting without switching to serial mode.
206         (GTM::gtm_thread::decide_begin_dispatch): Let the caller set the
207         transaction state. Choose closed-nesting alternative if available.
208         (GTM::gtm_thread::set_default_dispatch): New.
209         (parse_default_method): New.
210         (GTM::gtm_thread::number_of_threads_changed): New.
211         * method-serial.cc (GTM::serial_mg): New method group class.
212         (GTM::serialirr_dispatch): Belongs to serial_mg. Remove reinit and
213         fini.
214         (GTM::serial_dispatch): Same.
215         (GTM::serialirr_onwrite_dispatch): Same.
216         (GTM::gtm_thread::serialirr_mode): Remove calls to fini.
217         * beginend.cc (GTM::gtm_thread::~gtm_thread): Maintain number of
218         registered threads.
219         (GTM::gtm_thread::gtm_thread): Same.
220         (_ITM_abortTransaction): Remove calls to abi_dispatch::fini().
221         (GTM::gtm_thread::trycommit): Same. Reset number of restarts.
222         (GTM::gtm_thread::begin_transaction): Let decide_begin_dispatch()
223         choose dispatch but set state according to dispatch here.
224         * dispatch.h (GTM::abi_dispatch::fini): Move to method group.
225         (GTM::method_group): New class.
226         (GTM::abi_dispatch): Add comments. Maintain pointer to method_group.
227         * libitm_i.h (GTM::gtm_thread): Add declarations for new members.
228         * libitm.texi: Document TM methods, method groups, method life cycle.
229         Rename method sets to method groups.
230
231 2011-08-23  Torvald Riegel  <triegel@redhat.com>
232
233         * config/x86/tls.h: Moved to ...
234         * config/linux/x86/tls.h: ... here.
235
236 2011-08-23  Torvald Riegel  <triegel@redhat.com>
237
238         * config/x86/tls.h: Use __x86_64__ instead of __LP64__.
239         Add X32 support.
240         * config/x86/sjlj.S: Same.
241
242 2011-08-19  Torvald Riegel  <triegel@redhat.com>
243
244         * config/linux/rwlock.h: New file.
245         * config/linux/rwlock.c: New file.
246         * configure.ac: Reenable futex support (undo SVN rev 157758).
247         * Makefile.am: Same.
248         * configure.tgt: Same.
249         * config/linux/alpha/futex_bits.h: Same.
250         * config/linux/futex.h: Same. Return number of woken processes.
251         * config/linux/futex.cc: Same.
252         (futex_wait): Remove spinning.
253         * config/linux/x86/futex_bits.h: Same. Set futex timeout to zero.
254         Use __x86_64__ instead of __LP64__.
255         * aclocal.m4: Include generic futex checks.
256         * configure: Rebuild.
257         * Makefile.in: Rebuild.
258         * testsuite/Makefile.in: Rebuild.
259         * beginend.cc: Include pthread.h.
260         * config/posix/cachepage.cc: Same.
261
262 2011-08-12  Torvald Riegel  <triegel@redhat.com>
263
264         * config/x86/tls.h (gtm_tx, set_gtm_tx, setup_gtm_thr): Removed.
265         (abi_disp, set_abi_disp): Move to tx's TLS slot.
266         (set_gtm_thr): New.
267         * config/generic/tls.h (gtm_tx, set_gtm_tx, setup_gtm_thr): Removed.
268         (set_gtm_thr): New.
269         (GTM::gtm_thread::thread_num): Removed.
270         (GTM::gtm_thread): Renamed to GTM::gtm_thread_tls.
271         * libitm_i.h (GTM::gtm_transaction): Renamed to GTM::gtm_thread. More
272         tx-to-thread renaming.
273         * beginend.cc: Adapted to tx-to-thread renaming.
274         (GTM::gtm_thread::~gtm_thread): Extracted from thread_exit_handler().
275         (GTM::gtm_thread::gtm_thread): Extracted from begin_transaction().
276         * query.cc (_ITM_getTransactionId, _ITM_inTransaction): Renamed
277         gtm_transaction to gtm_thread.
278         (_ITM_getThreadnum): Removed. Not supported anymore.
279         * testsuite/libitm.c/notx.c (main): Removed _ITM_getThreadnum call.
280         * libitm.texi: Documented that _ITM_getThreadnum is not supported.
281         * useraction.cc: Renamed gtm_transaction to gtm_thread. Adapted to
282         gtm_tx-to-gtm_thr renaming if necessary.
283         * eh_cpp.cc: Same.
284         * local.cc: Same.
285         * retry.cc: Same.
286         * clone.cc: Same.
287         * alloc.cc: Same.
288         * alloc_c.cc: Same.
289         * alloc_cpp.cc: Same.
290         * method-serial.cc: Same.
291         * config/generic/tls.cc: Same.
292         * config/posix/rwlock.h (gtm_rwlock): Same.
293         * config/posix/rwlock.cc: Same. Adapted to more tx-to-thread renaming.
294
295 2011-08-12  Torvald Riegel  <triegel@redhat.com>
296
297         * config/posix/rwlock.cc (gtm_rwlock::read_lock): Changed locking
298         implementation.
299         (gtm_rwlock::read_unlock): Same.
300         (gtm_rwlock::write_lock_generic): New. Generalized from ...
301         (gtm_rwlock::write_lock, gtm_rwlock::write_upgrade): ... these.
302         * libitm_i.h (GTM::gtm_transaction): Added shared_state.
303         * config/posix/rwlock.h (GTM::gtm_rwlock): Removed a_reader and
304         w_upgrade. Replaced by per-transaction flags (in shared_state).
305         Added c_confirmed_writers.
306         (GTM::gtm_rwlock::read_lock, GTM::gtm_rwlock::read_unlock,
307         GTM::gtm_rwlock::write_upgrade): Add tx parameter.
308         * retry.cc (GTM::gtm_transaction::decide_retry_strategy): Same.
309         * method-serial.cc (GTM::gtm_transaction::serialirr_mode): Same.
310         * beginend.cc (GTM::gtm_transaction::begin_transaction,
311         _ITM_abortTransaction, GTM::gtm_transaction::trycommit): Same.
312         * libitm.texi: Document locking conventions and implementations in
313         libitm.
314
315 2011-08-12  Torvald Riegel  <triegel@redhat.com>
316
317         * libitm_i.h (next_tx): Add list of all threads' transaction.
318         * beginend.cc (GTM::gtm_transaction::begin_transaction): Register
319         transaction with list of transactions and ...
320         (thread_exit_handler): ... deregister here.
321         * config/alpha/target.h: Add HW_CACHELINE_SIZE setting.
322         * config/x86/target.h: Same.
323
324 2011-08-12  Torvald Riegel  <triegel@redhat.com>
325
326         * testsuite/libitm.c++/static_ctor.C: New file.
327
328 2011-08-12  Torvald Riegel  <triegel@redhat.com>
329
330         * testsuite/libitm.c/reentrant.c: New file.
331
332 2011-08-12  Torvald Riegel  <triegel@redhat.com>
333
334         * config/generic/tls.h: Remove the free list for transactions and ...
335         * beginend.cc (GTM::gtm_transaction::operator new): ... allocate ...
336         (GTM::gtm_transaction::operator delete): ... and release here.
337         (thread_exit_handler): New. Delete tx when thread terminates.
338         (thread_exit_init): New.
339         (GTM::gtm_transaction::begin_transaction): Set up on-exit handler.
340         * testsuite/libitm.c/txrelease.c: New file.
341
342 2011-08-12  Torvald Riegel  <triegel@redhat.com>
343
344         * query.cc (_ITM_getThreadnum): Set up gtm_thread if necessary.
345         * testsuite/libitm.c/notx.c: New file.
346
347 2011-08-12  Torvald Riegel  <triegel@redhat.com>
348
349         * config/generic/tls.h (gtm_thread): Move local_tid from here ...
350         * libitm_i.h (local_tid): ... to here.
351         * beginend.cc (GTM::gtm_transaction::begin_transaction): Same.
352         (GTM::gtm_transaction::operator new): Set up gtm_thread if necessary.
353
354 2011-08-12  Torvald Riegel  <triegel@redhat.com>
355
356         * retry.cc (GTM::gtm_transaction::decide_begin_dispatch): Use
357         serialirr_onwrite_dispatch as new default for now.
358         * method-serial.cc (serialirr_onwrite_dispatch): New.
359         (GTM::dispatch_serialirr_onwrite): New.
360         * libitm_i.h: Same.
361
362 2011-08-12  Torvald Riegel  <triegel@redhat.com>
363
364         * beginend.cc (GTM::gtm_transaction::rollback): Roll back tx id as well.
365         * query.cc (_ITM_getTransactionId): There is no active transaction if
366         the current nesting level is zero.
367
368 2011-07-28  Torvald Riegel  <triegel@redhat.com>
369
370         * beginend.cc (GTM::gtm_transaction::rollback): Fix nesting level
371         rollback.
372
373 2011-07-28  Torvald Riegel  <triegel@redhat.com>
374
375         * retry.cc (GTM::gtm_transaction::decide_begin_dispatch): Get
376         transaction properties from the caller instead of from the
377         transaction object.
378         * libitm_i.h: Same.
379         * beginend.cc (GTM::gtm_transaction::begin_transaction): Same.
380
381 2011-07-28  Torvald Riegel  <triegel@redhat.com>
382
383         * local.cc (gtm_transaction::rollback_local): Support closed nesting.
384         * eh_cpp.cc (GTM::gtm_transaction::revert_cpp_exceptions): Same.
385         * dispatch.h: Same.
386         * method-serial.cc: Same.
387         * beginend.cc (GTM::gtm_transaction::begin_transaction): Change to
388         flat nesting as default, and closed nesting on demand.
389         (GTM::gtm_transaction::rollback): Same.
390         (_ITM_abortTransaction): Same.
391         (GTM::gtm_transaction::restart): Same.
392         (GTM::gtm_transaction::trycommit): Same.
393         (GTM::gtm_transaction::trycommit_and_finalize): Removed.
394         (choose_code_path): New.
395         (GTM::gtm_transaction_cp::save): New.
396         (GTM::gtm_transaction_cp::commit): New.
397         * query.cc (_ITM_inTransaction): Support flat nesting.
398         * libitm_i.h (GTM::gtm_transaction_cp): New helper struct for nesting.
399         (GTM::gtm_transaction): Support flat and closed nesting.
400         * alloc.cc (commit_allocations_2): New.
401         (commit_cb_data): New helper struct.
402         (GTM::gtm_transaction::commit_allocations): Handle nested
403         commits/rollbacks.
404         * libitm.texi: Update user action section, add description of nesting.
405
406 2011-07-28  Torvald Riegel  <triegel@redhat.com>
407
408         * libitm_i.h: Add closed nesting as restart reason.
409         * retry.cc (GTM::gtm_transaction::decide_retry_strategy): Same.
410
411 2011-07-28  Torvald Riegel  <triegel@redhat.com>
412
413         * useraction.cc: Use vector instead of list to store actions.
414         Also support partial rollbacks for closed nesting.
415         * libitm_i.h (GTM::gtm_transaction::user_action): Same.
416         * beginend.cc: Same.
417
418 2011-07-28  Torvald Riegel  <triegel@redhat.com>
419
420         * dispatch.h (GTM::abi_dispatch): Add can_run_uninstrumented_code and
421         closed_nesting flags, as well as a closed nesting alternative.
422         * method-serial.cc: Same.
423         (serial_dispatch): Renamed to serialirr_dispatch.
424         (GTM::dispatch_serialirr): Same.
425         (serial_dispatch_ul): Renamed to serial_dispatch.
426         (GTM::dispatch_serial): Same.
427
428 2011-07-28  Torvald Riegel  <triegel@redhat.com>
429
430         * libitm.h (_ITM_codeProperties): Change pr_hasElse to the ABI's value.
431
432 2011-07-28  Torvald Riegel  <triegel@redhat.com>
433
434         * aatree.h (aa_tree::remove): New.
435         (aa_tree::operator new): Add placement new.
436
437 2011-07-02  Torvald Riegel  <triegel@redhat.com>
438
439         * containers.h: New file.
440         * util.cc (xmalloc, xrealloc): Accept cacheline-alloc flag.
441         * libitm_i.h (xmalloc, xrealloc): Moved declarations from here ...
442         * common.h: ... to here.
443         (local_undo): Use GTM::vector for gtm_transaction::local_undo.
444         * local.cc: Same.
445
446 2011-06-30  Torvald Riegel  <triegel@redhat.com>
447
448         * libitm_i.h (STATE_ABORTING): Remove.
449         * beginend.cc (_ITM_abortTransaction): Same.
450         (GTM::gtm_transaction::trycommit_and_finalize): Same.
451         * libitm.h (_ITM_registerThrownObject, _ITM_tryCommitTransaction): Remove.
452         (_ITM_rollbackTransaction): Remove.
453         * beginend.cc: Same.
454         * libitm.map: Same.
455         * libitm.texi: Document these ABI changes.
456
457 2011-06-30  Torvald Riegel  <triegel@redhat.com>
458
459         * libitm.texi: New file.
460         * Makefile.am: Add libitm.texi.
461         * Makefile.in: Rebuild.
462
463 2011-06-30  Torvald Riegel  <triegel@redhat.com>
464
465         * libitm_i.h: Move parts to common.h and dispatch.h.
466         * common.h: New file.
467         * dispatch.h: New file, new dispatch class.
468         Rename GTM::abi_dispatch::lock_type to ls_modifier.
469         RenameGTM::abi_dispatch::NOLOCK to NONTXNAL.
470         * beginend.cc (GTM::gtm_transaction::begin_transaction): Delegate mode
471         decision to retry.cc.
472         * retry.cc (GTM::gtm_transaction::decide_retry_strategy): Use serial mode
473         only.
474         (GTM::gtm_transaction::decide_begin_dispatch): Same.
475         * method-serial.cc: Adapt to new dispatch. Add serial mode with undo
476         logging.
477         * barrier.cc: Use new barriers definitions.
478         (abi_dispatch::memmove_overlap_check): New.
479         * config/x86/x86_sse.cc: Same.
480         * config/x86/x86_avx.cc: Same.
481         * Makefile.am: Don't build readonly and wbetl methods, memset.cc and
482         memcpy.cc.
483         * Makefile.in: Rebuild.
484         * method-readonly.cc: Remove.
485         * method-wbetl.cc: Rename GTM::abi_dispatch::lock_type to ls_modifier.
486         Rename GTM::abi_dispatch::NOLOCK to NONTXNAL.
487
488 2011-06-30  Torvald Riegel  <triegel@redhat.com>
489
490         * alloc_c.cc (_ITM_dropReferences): Don't support it anymore.
491         * testsuite/libitm.c++/dropref.C: _ITM_dropReferences is expected to fail.
492         * testsuite/libitm.c/dropref-2.c: Same.
493         * testsuite/libitm.c/dropref.c: Same.
494
495 2011-06-30  Torvald Riegel  <triegel@redhat.com>
496
497         * config/generic/tls.h (gtm_disp): Rename to abi_disp.
498         * config/generic/tls.h (set_gtm_disp): Rename to set_abi_disp.
499         * libitm_i.h: Rename gtm_dispatch to abi_dispatch.
500         * alloc_c.cc: Same.
501         * barrier.tpl: Same.
502         * beginend.c: Same.
503         * config/generic/tls.h: Same.
504         * config/x86/tls.h: Same.
505         * libitm_i.h: Same.
506         * memcpy.cc: Same.
507         * memset.cc: Same.
508         * method-readonly.cc: Same.
509         * method-serial.cc: Same.
510         * method-wbetl.cc: Same.
511         * retry.cc: Same.
512
513 2011-03-03  Richard Henderson  <rth@redhat.com>
514
515         * config/posix/rwlock.cc (write_upgrade): Add missing case.
516         From Patrik Marlier <patrick.marlier@unine.ch>.
517
518 2011-02-03  Richard Henderson  <rth@redhat.com>
519
520         * acinclude.m4 (LIBITM_CHECK_SIZE_T_MANGLING): New.
521         * configure.ac: Use it.
522         * configure, config.h.in: Rebuild.
523         * alloc_cpp.cc (_ZnwX): Use MANGLE_SIZE_T in constructing the name.
524         (_ZnaX, _ZnwXRKSt9nothrow_t, _ZnaXRKSt9nothrow_t, _ZGTtnwX,
525         _ZGTtnaX, _ZGTtnwXRKSt9nothrow_t, _ZGTtnaXRKSt9nothrow_t): Likewise.
526         * libitm.map: Use wildcards to match size_t mangling.
527
528 2010-12-14  Richard Henderson  <rth@redhat.com>
529
530         * beginend.cc (GTM::gtm_transaction::begin_transaction): Allocate
531         blocks of TIDs per thread.
532         * config/generic/tls.h (struct gtm_thread): Add local_tid member.
533         (setup_gtm_thr): Return the thread structure.
534         * config/x86/tls.h (setup_gtm_thr): Likewise.
535
536 2010-12-14  Richard Henderson  <rth@redhat.com>
537
538         * clone.cc (table_lock): Remove.
539         (find_clone): Don't take it.
540         (ExcludeTransaction): New helper class.
541         (_ITM_registerTMCloneTable): Use it.
542         (_ITM_deregisterTMCloneTable): Likewise.
543
544 2010-12-14  Richard Henderson  <rth@redhat.com>
545
546         * config/x86/tls.h: New file.
547
548 2010-07-15  Richard Henderson  <rth@redhat.com>
549
550         * Makefile.am (AM_CXXFLAGS): Add -funwind-tables.
551         * Makefile.in: Rebuild.
552
553 2010-07-13  Aldy Hernandez  <aldyh@redhat.com>
554
555         * method-wbetl.cc (trydropreference): Fix source line.
556
557 2010-07-13  Aldy Hernandez  <aldyh@redhat.com>
558
559         * libitm.h: Add comment.
560         * libitm_i.h (begin_transaction): Add ITM_REGPARM.
561
562 2010-07-07  Aldy Hernandez  <aldyh@redhat.com>
563
564         * configure.ac: Call LIBITM_CHECK_64BIT_SYNC_BUILTINS.
565         * beginend.cc (begin_transaction): If 64-bit sync builtins are not
566         available, use pthread mutexes.
567         * acinclude.m4 (LIBITM_CHECK_64BIT_SYNC_BUILTINS): New.
568         * config.h.in: Regenerate.
569         * configure: Regenerate.
570
571 2010-07-06  Aldy Hernandez  <aldyh@redhat.com>
572
573         * libitm.h (ITM_PURE): Define.
574         Declare _ITM_malloc, _ITM_calloc, and _ITM_free.
575
576 2010-06-28  Aldy Hernandez  <aldyh@redhat.com>
577
578         * method-wbetl.cc (class wbetl_dispatch): Add trydropreference.
579         (validate): Add comment.
580         (trydropreference): New.
581         * method-readonly.cc (class readonly_dispatch): Add
582         trydropreference.
583         * alloc_c.cc (_ITM_dropReferences): Remove const attribute.
584         Call trydropreference().
585         * libitm.h (_ITM_dropReferences): Remove const attribute.
586         * method-serial.cc (class serial_dispatch): Add trydropreference.
587         * libitm_i.h (struct gtm_dispatch): Add trydropreference.
588
589 2010-06-28  Aldy Hernandez  <aldyh@redhat.com>
590
591         * memcpy.cc (do_memcpy): Comment.
592
593 2010-06-25  Aldy Hernandez  <aldyh@redhat.com>
594
595         * barrier.tpl: Add comments throughout.
596
597 2010-06-24  Aldy Hernandez  <aldyh@redhat.com>
598
599         * method-wbetl.cc (struct w_entry): Add comments.
600         (trycommit): Same.
601         (rollback): Same.
602
603 2010-06-24  Aldy Hernandez  <aldyh@redhat.com>
604
605         * alloc_c.cc (_ITM_dropReferences): New.
606         * libitm.map (_ITM_dropReferences): Add.
607         * libitm.h (_ITM_dropReferences): Add transaction_pure attribute.
608         * libitm_i.h (struct gtm_transaction): Declare
609         drop_references_allocations and drop_references_local.
610         * local.cc (rollback_local): Ignore memory when applicable.
611         (drop_references_local): New.
612
613 2010-06-23  Richard Henderson  <rth@redhat.com>
614
615         * barrier.tpl, beginend.cc, clone.cc, tls.h, memcpy.cc,
616         memset.cc, method-serial.cc: Revert the 2010-06-16 change.
617         * config/x86/target.h (struct gtm_jmpbuf): Change CFA type to void*.
618         * config/alpha/target.h: Likewise.
619         * config/generic/tls.cc (gtm_mask_stack): Use it.
620
621 2010-06-23  Richard Henderson  <rth@redhat.com>
622
623         * config/posix/cachepage.cc (gtm_cacheline_page::operator new): Use
624         a mutex instead of trying a lock-free compare-and-swap on the list.
625         (gtm_cacheline_page::operator delete): Likewise.
626
627 2010-06-16  Richard Henderson  <rth@redhat.com>
628
629         * method-wbetl.cc (wbetl_dispatch::trycommit): Discard changes
630         that overlap the libitm stack.
631         * barrier.tpl: Mark incoming stack.
632         * beginend.cc (_ITM_rollbackTransaction, _ITM_abortTransaction,
633         _ITM_commitTransaction, _ITM_commitTransactionEH): Likewise.
634         * clone.cc (_ITM_getTMCloneOrIrrevocable): Likewise.
635         * memcpy.cc, memset.cc: Likewise.
636         * method-serial.cc (_ITM_changeTransactionMode): Likewise.
637         * config/generic/tls.h (gtm_thread): Add stack_top member.
638         (gtm_stack_top, set_gtm_stack_top, struct gtm_stack_marker): New.
639         * libitm_i.h (gtm_mask_stack): Declare.
640         * config/generic/tls.cc: New file.
641         * Makefile.am (libitm_la_SOURCES): Add it.
642         (AM_CXXFLAGS): Turn off exceptions.
643         * Makefile.in: Rebuild.
644
645 2010-06-16  Richard Henderson  <rth@redhat.com>
646
647         * alloc.cc (struct gtm_alloc_action): Move definition ...
648         * libitm_i.h: ... here.
649         (class gtm_transaction): Declare new and delete.
650         * beginend.cc (alloc_tx): Reformulate as operator new.
651         (free_tx): Reformulate as operator delete.
652         * config/generic/tls.h (gtm_thread): Change free_tx member to void *.
653
654 2010-06-11  Richard Henderson  <rth@redhat.com>
655
656         * clone.cc (clone_entry_compare): Fix typo.
657         From Patrik Marlier <patrick.marlier@unine.ch>.
658
659 2010-05-13  Richard Henderson  <rth@redhat.com>
660
661         * alloc_c.cc (_ITM_malloc, _ITM_calloc, _ITM_free): Wrap functions
662         in extern "C".
663
664 2010-05-07  Aldy Hernandez  <aldyh@redhat.com>
665
666         * libitm_i.h (struct gtm_transaction): Remove
667         get_allocation_size.
668         (record_allocation): Remove size parameter.
669         * libitm.map (_ITM_realloc): Remove.
670         * alloc_c.cc (_ITM_realloc): Remove.
671         (_ITM_malloc): Remove size argument to record_allocation.
672         (_ITM_calloc): Same.
673         * alloc_cpp.cc (_ZGTtnwm): Same.
674         (_ZGTtnwmRKSt9nothrow_t): Same.
675         (_ZGTtnam): Same.
676         (_ZGTtnamRKSt9nothrow_t): Same.
677         * alloc.cc (struct gtm_alloc_action): Remove size.
678         (get_allocation_size): Remove.
679         (commit_allocations): Add comment.
680         (record_allocation): Remove size parameter.
681         (forget_allocation): Remove set of size.
682
683 2010-04-19  Aldy Hernandez  <aldyh@redhat.com>
684
685         * Makefile.am (abi_version): New.
686         (AM_CXXFLAGS): Pass abi_version.
687         * Makefile.in: Regenerate.
688         * config/x86/unaligned.h: Remove always_inline kludge for vectors.
689
690 2010-04-06  Aldy Hernandez  <aldyh@redhat.com>
691
692         * clone.cc (_ITM_getTMCloneOrIrrevocable): Rename from
693         _ITM_getTMCloneOrIrrevokable.
694         * libitm.h (_ITM_getTMCloneOrIrrevocable): Same.
695         * libitm.map (_ITM_getTMCloneOrIrrevocable): Same.
696
697 2010-03-26  Aldy Hernandez  <aldyh@redhat.com>
698
699         * configure.ac: Remove Linux futex support.
700         * configure.tgt (config_path): Same.
701         * Makefile.am: Same.
702         * config/linux: Remove entire directory.
703         * configure: Rebuild.
704         * Makefile.in: Rebuild.
705         * testsuite/Makefile.in: Rebuild.
706
707 2010-03-09  Aldy Hernandez  <aldyh@redhat.com>
708
709         * retry.cc (decide_retry_strategy): Set state to STATE_SERIAL when
710         switching to serial mode.
711         * beginend.cc (trycommit_and_finalize): Unlock serial_lock.
712
713 2010-03-03  Aldy Hernandez  <aldyh@redhat.com>
714
715         * configure.tgt: Add emacs -*- tags.
716         * barrier.tpl: Same.
717
718 2010-02-23  Aldy Hernandez  <aldyh@redhat.com>
719
720         * Makefile.am: Rename serial.cc to method-serial.cc.
721         * Makefile.in: Regenerate with automake 1.11.1.
722         * testsuite/Makefile.in: Same.
723         * aclocal.m4: Regenerate with aclocal 1.11.1.
724         * method-serial.cc: Rename from serial.cc.
725         * libitm_i.h (struct gtm_transaction): Update comment on
726         serialirr_mode.
727
728 2010-02-22  Aldy Hernandez  <aldyh@redhat.com>
729
730         * libitm_i.h (GTM_longjmp): Add ITM_REGPARM.
731         * config/linux/rwlock.h (class gtm_rwlock): Add comments.
732
733 2010-02-11  Aldy Hernandez  <aldyh@redhat.com>
734
735         * configure: Rebuild.
736
737 2009-11-12  Richard Henderson  <rth@redhat.com>
738
739         * Rewrite everything in C++.
740
741 2009-11-03  Richard Henderson  <rth@redhat.com>
742
743         * config/x86/x86_sse.c, config/x86/x86_avx.c: New files.
744         * Makefile.am (libitm_la_SOURCES): Add them.
745         * configure.ac (ARCH_X86): New conditional.
746         * Makefile.in, configure: Rebuild.
747         * configure.tgt: Set up ARCH; do cflags setup at the same time.
748         Move futex setup into "other system configury" case.
749         * local.c (rollback_local): Merge into ...
750         (GTM_rollback_local): ... here.
751         (GTM_LB): Rename from GTM_alloc_local; do the memcpy here.
752         (_ITM_LB): Define as an alias to GTM_LB.
753
754 2009-11-03  Richard Henderson  <rth@redhat.com>
755
756         * method-readonly.c: New file.
757         * Makefile.am (libitm_la_SOURCES): Add it.
758         * Makefile.in: Rebuild.
759         * beginend.c (gtm_stmlock_array, gtm_clock): New.
760         (GTM_begin_transaction): Use dispatch_readonly for read-only txn.
761         * libitm_i.h (gtm_stmlock, gtm_version): Move from method-wbetl.c.
762         (GTM_VERSION_MAX, GTM_VERSION_INVALID, gtm_stmlock_owned_p,
763         gtm_stmlock_set_owned, gtm_stmlock_get_addr,
764         gtm_stmlock_get_version, gtm_stmlock_set_version, LOCK_ARRAY_SIZE,
765         gtm_stmlock_array, gtm_get_stmlock, gtm_clock, RESTART_NOT_READONLY,
766         gtm_get_clock, gtm_inc_clock): New.
767         * method-wbetl.c (gtm_version, gtm_stmlock, OWNED_MASK, VERSION_MAX,
768         LOCK_GET_OWNED, LOCK_SET_ADDR, LOCK_GET_ADDR, LOCK_GET_TIMESTAMP,
769         LOCK_SET_TIMESTAMP, LOCK_ARRAY_SIZE, LOCK_MASK, LOCK_IDX, GET_LOCK,
770         locks, gclock, CLOCK, GET_CLOCK, FETCH_AND_INC_CLOCK): Remove and
771         replace uses with new libitm_i.h symbols.
772         (dispatch_wbetl): Rename from wbetl_dispatch.
773         * retry.c (GTM_decide_retry_strategy): If RESTART_NOT_READONLY, move
774         away from dispatch_readonly; abort if the beginTransaction call
775         asserted that the transaction was readonly.
776
777 2009-11-03  Richard Henderson  <rth@redhat.com>
778
779         * memset.c: New file.
780         * Makefile.am (libitm_la_SOURCES): Add it.
781         * Makefile.in: Rebuild.
782         * testsuite/libitm.c/memset-1.c: New.
783
784 2009-11-03  Richard Henderson  <rth@redhat.com>
785
786         * dispatch.c: Remove file.
787         * useraction.c (struct gtm_user_action): Move from libitm.h.
788         * serial.c (GTM_null_read_lock, GTM_null_write_lock): New.
789         (serial_memset, serial_memmove, serial_memcpy): Remove.
790         (serial_W*, serial_R*): Remove.
791         (serial_dispatch): Update to match.
792         * configure.ac: Move Werror down below configure checks.  Don't
793         check for sys/loadavg.h, do check for malloc.h.  Don't check for
794         getloadavg and clock_gettime; do check for memalign, posix_memalign.
795         Use GCC_AC_FUNC_MMAP_BLACKLIST
796         * libitm.h: Split out all internal items to...
797         * libitm_i.h: ... here.  New file.
798         * copymask.c: New file.
799         * local.c (struct gtm_local_undo): Move from libitm.h.
800         (GTM_alloc_local): Rename from alloc_local; export.
801         * memcpy.c: New file.
802         * alloc_c.c (_ITM_realloc): Use _ITM_memcpyRnWt directly.
803         * config/posix/page.c: New file.
804         * config/posix/target_tls.h: Remove file.
805         * barrier.c: New file.
806         * Makefile.am (libitm_la_SOURCES): Add barrier.c, memcpy.c,
807         copymask.c, page.c.
808         * alloc.c (struct gtm_alloc_action): Move from libitm.h.
809         * method-wbetl.c: Rewrite for new cacheline methods.
810         * Makefile.in, configure, testsuite/Makefile.in, config.h.in: Rebuild.
811
812         * config/alpha/sjlj.S: Fix typo.
813         * config/alpha/target_i.h: Copy functions from alpha/target.h.
814         * config/alpha/copymask.c: New file.
815         * config/alpha/target.h (CACHELINE_SIZE): New.
816         (STRICT_ALIGNMENT, PAGE_SIZE, FIXED_PAGE_SIZE): New.
817
818         * config/x86/target_i.h: Copy functions from x86/target.h.
819         * config/x86/copymask.c: New file.
820         * config/x86/target.h (_ITM_ALL_TARGET_TYPES): Remove.
821         (CACHELINE_SIZE, STRICT_ALIGNMENT): New.
822         (PAGE_SIZE, FIXED_PAGE_SIZE): New.
823         * config/x86/target_tls.h: Move contents to target_i.h.
824
825         * testsuite/libitm.c/clone-1.c: Include libitm.h.
826         * testsuite/libitm.c/memcpy-1.c: New.
827
828 2009-10-22  Richard Henderson  <rth@redhat.com>
829
830         * Makefile.am (CCAS, CCASFLAGS, LTCCASCOMPILE): Remove.
831         (AM_CCASFLAGS): New.
832         * configure.ac: Add AM_PROG_AS.  Use m4_rename_force for
833         saving/restoring _AC_ARG_VAR_PRECIOUS.
834         * Makefile.in, aclocal.m4, config.h.in, configure,
835         testsuite/Makefile.in: Rebuild with automake 1.11; autoconf 2.64.
836
837 2009-10-22  Richard Henderson  <rth@redhat.com>
838
839         * testsuite/*: Update for new compiler syntax.
840
841 2009-10-21  Richard Henderson  <rth@redhat.com>
842
843         * libitm.h (_ITM_abortReason): Add outerAbort.
844
845 2009-08-03  Richard Henderson  <rth@redhat.com>
846
847         * libitm.map (_ITM_commitTransactionEH, _ITM_cxa_allocate_exception,
848         _ITM_cxa_begin_catch, _ITM_cxa_end_catch, _ITM_cxa_throw): Export.
849         * method-wbetl.c (struct w_entry): Remove mask.
850         (wbetl_write, wbetl_load): Return pointer to word containing the data;
851         adjust all callers.
852
853 2009-07-22  Richard Henderson  <rth@redhat.com>
854
855         * eh_cpp.c: New file.
856         * Makefile.am (libitm_la_SOURCES): Add it.
857         * Makefile.in: Rebuild.
858         * beginend.c (GTM_rollback_transaction): Undo exception state.
859         (GTM_trycommit_transaction): Mark inline.
860         (GTM_trycommit_and_finalize_transaction): Split out from ...
861         (_ITM_commitTransaction): ... here.
862         (_ITM_commitTransactionEH): New function.
863         * libitm.h (struct gtm_transaction): Add cxa_catch_count,
864         cxa_unthrown, eh_in_flight; reorder.
865
866         * testsuite/libitm.c++/c++.exp: New.
867         * testsuite/libitm.c++/eh-1.C: New.
868
869         * aatree.c (aa_free): Remove REGPARM.
870         * aatree.h: Remove all REGPARM.
871
872 2009-07-18  Richard Henderson  <rth@redhat.com>
873
874         * aatree.c, aatree.h, alloc.c, alloc_c.c, alloc_cpp.c: New files.
875         * Makefile.am (libitm_la_SOURCES): Add them.
876         * Makefile.in: Rebuild.
877         * beginend.c (GTM_rollback_transaction): Use GTM_commit_allocations.
878         (GTM_trycommit_transaction): Likewise.
879         * libitm.h: Include aatree.h
880         (struct gtm_alloc_action): New.
881         (struct gtm_transaction): Add alloc_actions.
882         (GTM_record_allocation, GTM_forget_allocation): Declare.
883         (GTM_get_allocation_size, GTM_commit_allocations): Declare.
884         * libitm.map (_ITM_malloc, _ITM_calloc, _ITM_realloc, _ITM_free,
885         _ZGTtnwm, _ZGTtnam, _ZGTtdlPv, _ZGTtdaPv, _ZGTtnwmRKSt9nothrow_t,
886         _ZGTtnamRKSt9nothrow_t, _ZGTtdlPvRKSt9nothrow_t,
887         _ZGTtdaPvRKSt9nothrow_t): Export.
888
889 2009-07-18  Richard Henderson  <rth@redhat.com>
890
891         * target_tls.h: Move ...
892         * config/posix/target_tls.h: ... here.
893
894 2009-07-07  Richard Henderson  <rth@redhat.com>
895
896         * config/x86/target.h (atomic_write_barrier): Use sfence if available.
897
898 2009-07-07  Richard Henderson  <rth@redhat.com>
899
900         * Update to GPL3.
901
902 2009-07-07  Richard Henderson  <rth@redhat.com>
903
904         * libitm.h (struct gtm_transaction): Widen id to _ITM_transactionId_t.
905         * beginend.c (global_tid): Widen to _ITM_transactionId_t.
906
907         * configure.tgt: Don't use -ftls-model for x86 linux.
908         * libitm.h: Include target.h after standard includes.
909         (_gtm_thr): Rename from gtm_thr.
910         (setup_gtm_thr, gtm_thr, gtm_tx, set_gtm_tx): New.
911         (gtm_disp, set_gtm_disp): New.
912         * beginend.c, dispatch.c, local.c, method-wbetl.c, query.c,
913         retry.c, serial.c, useraction.c: Use accessor functions throughout.
914         * config/alpha/target_tls.h, config/x86/target_tls.h: New files.
915
916 2009-07-07  Richard Henderson  <rth@redhat.com>
917
918         * config/linux/rwlock.c (EZ): New define.  Use it throughout.
919
920 2009-07-06  Richard Henderson  <rth@redhat.com>
921
922         * libitm.h (_ITM_SRCLOCATION_DECL_1, _ITM_SRCLOCATION_DECL_2): Remove.
923         (_ITM_SRCLOCATION_DEFN_1, _ITM_SRCLOCATION_DEFN_2): Remove.
924         (_ITM_beginTransaction): Take variadic arguments.
925         (_ITM_registerThrownObject): Declare.
926         * beginend.c, serial.c: Update.
927         * libitm.map: Add _ITM_registerThrownObject.
928
929 2009-01-28  Richard Henderson  <rth@redhat.com>
930
931         * Makefile.am (libitm_la_SOURCES): Add clone.c.
932         * Makefile.in: Rebuild.
933         * beginend.c (_ITM_abortTransaction): Abort if irrevokable.
934         (GTM_restart_transaction): Fix uninstrumented code check.
935         * retry.c (GTM_decide_retry_strategy): Add serial check.
936         * serial.c (GTM_serialmode): Add irrevokable variable.  Don't
937         automatically go irrevokable when in serial mode.
938         * clone.c: New file.
939         * libitm.h, libitm.map: Update.
940
941 2009-01-27  Richard Henderson  <rth@redhat.com>
942
943         * Makefile.am (LTCCASCOMPILE): Define.
944         (libitm_la_SOURCES): Add methid-wbetl.c.
945         * testsuite/Makefile.am: New
946         * configure.ac: Add testsuite/Makefile.
947         * Makefile.in, testsuite/Makefile.in, configure: Regenerate.
948         * beginend.c (GTM_begin_transaction): Install wbetl_dispatch.
949         (_ITM_abortTransaction): Finalize implementation method; pass
950         transaction properties to longjmp.
951         (GTM_restart_transaction): Split out from ...
952         (_ITM_commitTransaction): ... here.
953         * config/linux/x86/futex_bits.h (cpu_relax, atomic_write_barrier):
954         Move to config/x86/target.h.
955         * config/linux/alpha/futex_bits.h: New.
956         * config/x86/sjlj.S (GTM_longjmp): Fix 64-bit input register.
957         * config/x86/target.h: Disable target types for 32-bit.
958         * config/alpha/sjlj.S, config/alpha/target.h: New.
959         * libitm.h (struct gtm_dispatch): Add init, fini.
960         (enum restart_reason): New.
961         (struct gtm_transaction): Add method and restarts.
962         * retry.c (GTM_decide_retry_strategy): Implement.
963         * serial.c (serial_init, serial_fini): New.
964         (GTM_serialmode): Finialize outgoing method.
965         * method-wbetl.c: New.
966
967 2008-12-09  Richard Henderson  <rth@redhat.com>
968
969         * config/x86/target.h (_ITM_ALL_TARGET_TYPES, _ITM_TYPE_ATTR): New.
970         * configure.tgt (i386-*, x86_64-*): Don't force SSE.
971         * dispatch.c (_ITM_##R##T, _ITM_##W##T): Use _ITM_TYPE_ATTR.
972         * libitm.h (_ITM_ALL_TARGET_TYPES, _ITM_TYPE_ATTR): Provide default.
973         (_ITM_TYPE_M64, _ITM_TYPE_M128, _ITM_TYPE_M256): Move to x86 header.
974         (_ITM_ALL_TYPES): Use _ITM_ALL_TARGET_TYPES.
975         * local.c (_ITM_L##T): Use _ITM_TYPE_ATTR.
976         * serial.c (serial_R##T, serial_W##T): Likewise.
977
978 2008-11-21  Richard Henderson  <rth@redhat.com>
979
980         * Initial commit.