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From: Julian S. <js...@ac...> - 2008-09-02 21:00:41
|
And the reason IR-NoOp appears is because it was originally something else, but was removed during IR optimisation. J On Tuesday 02 September 2008, Nuno Lopes wrote: > It's not a no-op :-) > Those PUT(60) are needed in order to keep the virtualized machine state > up-to-date. The optimizer will also remove most useless PUTs. > The reason behind this is that if e.g. the code accesses some protected > memory address the process will segfault and then valgrind has to know > which of the original (i.e. from the program that you are running on top of > valgrind) instructions caused the problem, so that it can pinpoint the > problem down to the source code file/line. > > Nuno > > > ----- Original Message ----- > > > When I look at the IR Generated by valgrind, I find that there are many > > PUT(60) Instructions, which stands for modifying EIP. Most instructions > > including them are movs and branchs. Anyone could tell me what are these > > PUT(60)s does? > > > > And If IR-NoOp doesn't do anything, why it appeared in the ir list? > > > > Thank you! > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's > challenge Build the coolest Linux based applications with Moblin SDK & win > great prizes Grand prize is a trip for two to an Open Source event anywhere > in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > Valgrind-developers mailing list > Val...@li... > https://lists.sourceforge.net/lists/listinfo/valgrind-developers |
|
From: Julian S. <js...@ac...> - 2008-09-02 20:58:34
|
> Is the Valgrind 3.4.0 release schedule that was posted to this mailing > list on May 15 still accurate ? Unfortunately no, not remotely. Given my current schedule I can't see this happening at least for a month, although hopefully within two. The current things outstanding are: * try to fix massive space-use problems in the new Dwarf3 type/variable info reader (--read-var-info=yes eats all your memory very quickly) * fix a whole stack of bugs reported in bugzilla * merge the YARD branch of Helgrind in * possibly, add as an experimental tool, the stack/global array overrun checker in the SGCHECK branch, and/or the heap overrun checker in the PTRCHECK branch I expect to have more time available to work on the release starting early October. J |
|
From: Nuno L. <nun...@is...> - 2008-09-02 18:11:54
|
It's not a no-op :-) Those PUT(60) are needed in order to keep the virtualized machine state up-to-date. The optimizer will also remove most useless PUTs. The reason behind this is that if e.g. the code accesses some protected memory address the process will segfault and then valgrind has to know which of the original (i.e. from the program that you are running on top of valgrind) instructions caused the problem, so that it can pinpoint the problem down to the source code file/line. Nuno ----- Original Message ----- > When I look at the IR Generated by valgrind, I find that there are many > PUT(60) Instructions, which stands for modifying EIP. Most instructions > including them are movs and branchs. Anyone could tell me what are these > PUT(60)s does? > > And If IR-NoOp doesn't do anything, why it appeared in the ir list? > > Thank you! |
|
From: Bonian Z. <zha...@gm...> - 2008-09-02 16:49:17
|
When I look at the IR Generated by valgrind, I find that there are many PUT(60) Instructions, which stands for modifying EIP. Most instructions including them are movs and branchs. Anyone could tell me what are these PUT(60)s does? And If IR-NoOp doesn't do anything, why it appeared in the ir list? Thank you! |
|
From: Tom H. <th...@cy...> - 2008-09-02 03:23:44
|
Nightly build on alvis ( i686, Red Hat 7.3 ) started at 2008-09-02 03:15:02 BST Results unchanged from 24 hours ago Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... failed Regression test results follow == 346 tests, 60 stderr failures, 1 stdout failure, 29 post failures == memcheck/tests/file_locking (stderr) memcheck/tests/leak-0 (stderr) memcheck/tests/leak-cycle (stderr) memcheck/tests/leak-regroot (stderr) memcheck/tests/leak-tree (stderr) memcheck/tests/long_namespace_xml (stderr) memcheck/tests/malloc_free_fill (stderr) memcheck/tests/origin1-yes (stderr) memcheck/tests/origin4-many (stderr) memcheck/tests/origin5-bz2 (stderr) memcheck/tests/pointer-trace (stderr) memcheck/tests/stack_changes (stderr) memcheck/tests/varinfo1 (stderr) memcheck/tests/varinfo2 (stderr) memcheck/tests/varinfo3 (stderr) memcheck/tests/varinfo4 (stderr) memcheck/tests/varinfo5 (stderr) memcheck/tests/varinfo6 (stderr) memcheck/tests/x86/bug152022 (stderr) memcheck/tests/x86/scalar (stderr) memcheck/tests/x86/scalar_supp (stderr) memcheck/tests/x86/xor-undef-x86 (stderr) memcheck/tests/xml1 (stderr) massif/tests/alloc-fns-A (post) massif/tests/alloc-fns-B (post) massif/tests/basic (post) massif/tests/basic2 (post) massif/tests/big-alloc (post) massif/tests/culling1 (stderr) massif/tests/culling2 (stderr) massif/tests/custom_alloc (post) massif/tests/deep-A (post) massif/tests/deep-B (stderr) massif/tests/deep-B (post) massif/tests/deep-C (stderr) massif/tests/deep-C (post) massif/tests/deep-D (post) massif/tests/ignoring (post) massif/tests/insig (post) massif/tests/long-names (post) massif/tests/long-time (post) massif/tests/new-cpp (post) massif/tests/null (post) massif/tests/one (post) massif/tests/overloaded-new (post) massif/tests/peak (post) massif/tests/peak2 (stderr) massif/tests/peak2 (post) massif/tests/realloc (stderr) massif/tests/realloc (post) massif/tests/thresholds_0_0 (post) massif/tests/thresholds_0_10 (post) massif/tests/thresholds_10_0 (post) massif/tests/thresholds_10_10 (post) massif/tests/thresholds_5_0 (post) massif/tests/thresholds_5_10 (post) massif/tests/zero1 (post) massif/tests/zero2 (post) none/tests/blockfault (stderr) none/tests/mremap2 (stdout) none/tests/shell (stderr) none/tests/shell_valid1 (stderr) none/tests/shell_valid2 (stderr) none/tests/shell_valid3 (stderr) helgrind/tests/hg01_all_ok (stderr) helgrind/tests/hg02_deadlock (stderr) helgrind/tests/hg03_inherit (stderr) helgrind/tests/hg04_race (stderr) helgrind/tests/hg05_race2 (stderr) helgrind/tests/hg06_readshared (stderr) helgrind/tests/tc01_simple_race (stderr) helgrind/tests/tc02_simple_tls (stderr) helgrind/tests/tc03_re_excl (stderr) helgrind/tests/tc05_simple_race (stderr) helgrind/tests/tc06_two_races (stderr) helgrind/tests/tc07_hbl1 (stderr) helgrind/tests/tc08_hbl2 (stderr) helgrind/tests/tc09_bad_unlock (stderr) helgrind/tests/tc11_XCHG (stderr) helgrind/tests/tc12_rwl_trivial (stderr) helgrind/tests/tc14_laog_dinphils (stderr) helgrind/tests/tc16_byterace (stderr) helgrind/tests/tc17_sembar (stderr) helgrind/tests/tc18_semabuse (stderr) helgrind/tests/tc19_shadowmem (stderr) helgrind/tests/tc20_verifywrap (stderr) helgrind/tests/tc21_pthonce (stderr) helgrind/tests/tc22_exit_w_lock (stderr) helgrind/tests/tc23_bogus_condwait (stderr) helgrind/tests/tc24_nonzero_sem (stderr) |
|
From: Tom H. <th...@cy...> - 2008-09-02 02:55:51
|
Nightly build on aston ( x86_64, Fedora Core 5 ) started at 2008-09-02 03:20:06 BST Results differ from 24 hours ago Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... failed Regression test results follow == 444 tests, 9 stderr failures, 1 stdout failure, 0 post failures == memcheck/tests/file_locking (stderr) memcheck/tests/malloc_free_fill (stderr) memcheck/tests/pointer-trace (stderr) memcheck/tests/x86/scalar (stderr) none/tests/blockfault (stderr) none/tests/mremap2 (stdout) helgrind/tests/tc20_verifywrap (stderr) helgrind/tests/tc21_pthonce (stderr) helgrind/tests/tc22_exit_w_lock (stderr) drd/tests/pth_inconsistent_cond_wait (stderr) ================================================= == Results from 24 hours ago == ================================================= Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... failed Regression test results follow == 444 tests, 8 stderr failures, 1 stdout failure, 0 post failures == memcheck/tests/file_locking (stderr) memcheck/tests/malloc_free_fill (stderr) memcheck/tests/pointer-trace (stderr) memcheck/tests/x86/scalar (stderr) none/tests/blockfault (stderr) none/tests/mremap2 (stdout) helgrind/tests/tc20_verifywrap (stderr) helgrind/tests/tc21_pthonce (stderr) helgrind/tests/tc22_exit_w_lock (stderr) ================================================= == Difference between 24 hours ago and now == ================================================= *** old.short Tue Sep 2 03:38:26 2008 --- new.short Tue Sep 2 03:56:01 2008 *************** *** 8,10 **** ! == 444 tests, 8 stderr failures, 1 stdout failure, 0 post failures == memcheck/tests/file_locking (stderr) --- 8,10 ---- ! == 444 tests, 9 stderr failures, 1 stdout failure, 0 post failures == memcheck/tests/file_locking (stderr) *************** *** 18,19 **** --- 18,20 ---- helgrind/tests/tc22_exit_w_lock (stderr) + drd/tests/pth_inconsistent_cond_wait (stderr) |
|
From: Tom H. <th...@cy...> - 2008-09-02 02:48:47
|
Nightly build on lloyd ( x86_64, Fedora 7 ) started at 2008-09-02 03:05:05 BST Results unchanged from 24 hours ago Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... failed Regression test results follow == 438 tests, 6 stderr failures, 2 stdout failures, 0 post failures == memcheck/tests/file_locking (stderr) memcheck/tests/malloc_free_fill (stderr) memcheck/tests/pointer-trace (stderr) memcheck/tests/vcpu_fnfns (stdout) memcheck/tests/x86/scalar (stderr) none/tests/mremap2 (stdout) helgrind/tests/tc20_verifywrap (stderr) helgrind/tests/tc22_exit_w_lock (stderr) |
|
From: Tom H. <th...@cy...> - 2008-09-02 02:42:16
|
Nightly build on trojan ( x86_64, Fedora Core 6 ) started at 2008-09-02 03:25:09 BST Results differ from 24 hours ago Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... failed Regression test results follow == 442 tests, 8 stderr failures, 5 stdout failures, 0 post failures == memcheck/tests/file_locking (stderr) memcheck/tests/malloc_free_fill (stderr) memcheck/tests/pointer-trace (stderr) memcheck/tests/vcpu_fnfns (stdout) memcheck/tests/x86/bug133694 (stdout) memcheck/tests/x86/bug133694 (stderr) memcheck/tests/x86/scalar (stderr) none/tests/cmdline1 (stdout) none/tests/cmdline2 (stdout) none/tests/mremap2 (stdout) helgrind/tests/tc20_verifywrap (stderr) helgrind/tests/tc21_pthonce (stderr) helgrind/tests/tc22_exit_w_lock (stderr) ================================================= == Results from 24 hours ago == ================================================= Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... failed Regression test results follow == 442 tests, 9 stderr failures, 5 stdout failures, 0 post failures == memcheck/tests/file_locking (stderr) memcheck/tests/malloc_free_fill (stderr) memcheck/tests/pointer-trace (stderr) memcheck/tests/vcpu_fnfns (stdout) memcheck/tests/x86/bug133694 (stdout) memcheck/tests/x86/bug133694 (stderr) memcheck/tests/x86/scalar (stderr) none/tests/cmdline1 (stdout) none/tests/cmdline2 (stdout) none/tests/mremap2 (stdout) helgrind/tests/tc17_sembar (stderr) helgrind/tests/tc20_verifywrap (stderr) helgrind/tests/tc21_pthonce (stderr) helgrind/tests/tc22_exit_w_lock (stderr) ================================================= == Difference between 24 hours ago and now == ================================================= *** old.short Tue Sep 2 03:33:47 2008 --- new.short Tue Sep 2 03:42:24 2008 *************** *** 8,10 **** ! == 442 tests, 9 stderr failures, 5 stdout failures, 0 post failures == memcheck/tests/file_locking (stderr) --- 8,10 ---- ! == 442 tests, 8 stderr failures, 5 stdout failures, 0 post failures == memcheck/tests/file_locking (stderr) *************** *** 19,21 **** none/tests/mremap2 (stdout) - helgrind/tests/tc17_sembar (stderr) helgrind/tests/tc20_verifywrap (stderr) --- 19,20 ---- |
|
From: Tom H. <th...@cy...> - 2008-09-02 02:26:39
|
Nightly build on gill ( x86_64, Fedora Core 2 ) started at 2008-09-02 03:00:03 BST Results unchanged from 24 hours ago Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... failed Regression test results follow == 444 tests, 31 stderr failures, 3 stdout failures, 0 post failures == memcheck/tests/file_locking (stderr) memcheck/tests/malloc_free_fill (stderr) memcheck/tests/origin5-bz2 (stderr) memcheck/tests/pointer-trace (stderr) memcheck/tests/stack_switch (stderr) memcheck/tests/varinfo6 (stderr) memcheck/tests/x86/scalar (stderr) memcheck/tests/x86/scalar_supp (stderr) none/tests/amd64/insn_ssse3 (stdout) none/tests/amd64/insn_ssse3 (stderr) none/tests/amd64/ssse3_misaligned (stderr) none/tests/blockfault (stderr) none/tests/fdleak_fcntl (stderr) none/tests/mremap2 (stdout) none/tests/x86/insn_ssse3 (stdout) none/tests/x86/insn_ssse3 (stderr) none/tests/x86/ssse3_misaligned (stderr) helgrind/tests/hg01_all_ok (stderr) helgrind/tests/hg02_deadlock (stderr) helgrind/tests/hg03_inherit (stderr) helgrind/tests/hg04_race (stderr) helgrind/tests/hg05_race2 (stderr) helgrind/tests/tc01_simple_race (stderr) helgrind/tests/tc05_simple_race (stderr) helgrind/tests/tc06_two_races (stderr) helgrind/tests/tc09_bad_unlock (stderr) helgrind/tests/tc14_laog_dinphils (stderr) helgrind/tests/tc16_byterace (stderr) helgrind/tests/tc17_sembar (stderr) helgrind/tests/tc19_shadowmem (stderr) helgrind/tests/tc20_verifywrap (stderr) helgrind/tests/tc21_pthonce (stderr) helgrind/tests/tc22_exit_w_lock (stderr) helgrind/tests/tc23_bogus_condwait (stderr) |