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Hi, can you please check the problem is fixed by r195125? On Tue, Nov 19, 2013 at 2:35 PM, Alexander Potapenko <glider at google.com> wrote: > Hi Cameron, > > I'm planning to address this issue today. > > HTH, > Alex > > On Mon, Nov 18, 2013 at 9:45 PM, Cameron McInally > <cameron.mcinally at nyu.edu> wrote: >> Hey guys, >> >> My local build is br...

On Thu, Aug 1, 2019 at 6:38 PM JF Bastien <jfbastien at apple.com> wrote: > > > > > On Aug 1, 2019, at 9:20 AM, Alexander Potapenko <glider at google.com> wrote: > > > > On Thu, Aug 1, 2019 at 6:09 PM JF Bastien <jfbastien at apple.com> wrote: > >> > >> Hi Alexander, > >> > >> The code doesn’t compile. Could you send a godbolt.org link that shows the issue? > > S...

...ssues with the allocator which were corked here and there before. Most of those are caused by a CoreFoundation dependency, which I'm trying to eliminate now. On Mon, Dec 3, 2012 at 8:50 PM, Rafael Espíndola <rafael.espindola at gmail.com> wrote: > On 30 November 2012 13:32, Alexander Potapenko <glider at google.com> wrote: >> No, we are not going to use mach_inject. This isn't portable and may >> be even harder to set up than mach_override. >> The new ASan runtime will use the dylib interposition and will in fact >> require DYLD_INSERT_LIBRARIES to work....

...9;m trying to check if this is true. The current plan is to have dynamic runtime for both iOS (for which we don't have any other option) and Mac OS. On Tue, Dec 4, 2012 at 10:17 AM, Jack Howarth <howarth at bromo.med.uc.edu> wrote: > On Tue, Dec 04, 2012 at 09:46:09AM -0800, Alexander Potapenko wrote: >> +kledzik at apple.com >> The dynamic runtime is using dylib interposition (google for >> "__DATA,__interpose). >> If I'm understanding correctly (Nick, can you please confirm this?) >> this allows to interpose the function regardless of the two-level...

...t google.com> wrote: > On a first look case like this should nor be a problem. The tail of the > memset here is unused because it's replaced immediately without reads . So > it can be trimmed. I will try the patch and let you know. > > On Thu, Aug 1, 2019 at 9:51 AM Alexander Potapenko <glider at google.com> > wrote: > >> On Thu, Aug 1, 2019 at 6:38 PM JF Bastien <jfbastien at apple.com> wrote: >> > >> > >> > >> > > On Aug 1, 2019, at 9:20 AM, Alexander Potapenko <glider at google.com> >> wrote: >> &...

On Tue, Dec 04, 2012 at 10:36:18AM -0800, Alexander Potapenko wrote: > Currently the replacement of allocation routines is based on creating > a new malloc zone and a new CFAllocator (because the allocator > replacement is done later than it could be, we must have both). This > makes us depend on CoreFoundation to call CFAllocatorSetDefault. >...

...to 8 are initializing |acpar|. If I'm understanding correctly, the store to 8(%rsp) at line 7 can be removed because of the store at line 35. Same for store to 24(%rsp), which is later overwritten at lines 11 and 16. > Thanks, > > JF > > > On Aug 1, 2019, at 7:21 AM, Alexander Potapenko <glider at google.com> wrote: > > > > Hi folks, > > > > When compiling the attached example with -ftrivial-auto-var-init=zero: > > > > $ clang -no-integrated-as -mno-sse -m64 -mstack-alignment=8 -O2 > > -ftrivial-auto-var-init=zero > > -en...

On Tue, Sep 18, 2018 at 1:56 AM Adrian Prantl <aprantl at apple.com> wrote: > > > > > On Sep 17, 2018, at 6:59 AM, Alexander Potapenko via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > > > (I think I've asked a similar question off-list a couple of times, but > > never got an answer) > > > > Hi folks, > > > > For [K]MSAN we need to figure out which inlined function a local var...

On Tue, Dec 04, 2012 at 09:46:09AM -0800, Alexander Potapenko wrote: > +kledzik at apple.com > The dynamic runtime is using dylib interposition (google for > "__DATA,__interpose). > If I'm understanding correctly (Nick, can you please confirm this?) > this allows to interpose the function regardless of the two-level > namespace. &gt...

On Wed, Sep 19, 2018 at 5:18 PM Adrian Prantl <aprantl at apple.com> wrote: > > > > > On Sep 19, 2018, at 4:08 AM, Alexander Potapenko <glider at google.com> wrote: > > > > On Tue, Sep 18, 2018 at 1:56 AM Adrian Prantl <aprantl at apple.com> wrote: > >> > >> > >> > >>> On Sep 17, 2018, at 6:59 AM, Alexander Potapenko via llvm-dev <llvm-dev at lists.llvm.org> wrot...

...LevelDebugging.html mentions @llvm.dbg.addr as the source of information about a local var, but the ToT Clang doesn't emit it. There're calls to @llvm.debug.declare in the IR, but it's said to be deprecated, so I'm not sure if it's ok to use it. Thanks in advance, -- Alexander Potapenko Software Engineer Google Germany GmbH Erika-Mann-Straße, 33 80636 München Geschäftsführer: Paul Manicle, Halimah DeLaine Prado Registergericht und -nummer: Hamburg, HRB 86891 Sitz der Gesellschaft: Hamburg

...Thanks for your email. But it seems not work. I removed the -fsanitize=address flag. The global buffer overflow message doesn't show. However, no *.sancov file is created after I run perlbench. Thus, I could not get the BB coverage. Do you have any ideas? Many Thanks Regards Muhui Alexander Potapenko <glider at google.com> 于2018年9月5日周三 下午7:14写道： > Hi Muhui, > > If you want just the coverage information you can remove the > -fsanitize=address flag from the command line. > > HTH, > Alex > On Wed, Sep 5, 2018 at 1:06 PM Muhui Jiang <jiangmuhui at gmail.com> wro...

+llvmdev Question to MacOS gurus: is there a way to disable ASLR (address space layout randomization) on Darwin at link time instead of doing setenv("DYLD_NO_PIE", "1", 1); and reexec? Thanks, --kcc On Fri, Dec 9, 2011 at 4:28 AM, Alexander Potapenko <glider at google.com>wrote: > The attached patch introduces the disable_aslr option (off by default) > and the corresponding AsanDisableAslr function that should disable the > address space randomization. > This is now implemented for Mac OS 10.6 only. > In order to do this w...

...returning non-void values there's one additional constraint, but it's unclear whether it always goes first. My current implementation is quite ad-hoc, so I'm wondering if there's any code that already does what I'm trying to achieve. Thanks in advance, Alexander -- Alexander Potapenko Software Engineer Google Germany GmbH Erika-Mann-Straße, 33 80636 München Geschäftsführer: Paul Manicle, Halimah DeLaine Prado Registergericht und -nummer: Hamburg, HRB 86891 Sitz der Gesellschaft: Hamburg

If this is the same test: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/eh/cond1.C.diff?cvsroot=gcc&r1=NONE&r2=1.1, then it doesn't fail for me on Mac OS 10.8 with ASan (Clang r168632) Have you tried symbolizing the report? On Thu, Nov 29, 2012 at 11:07 AM, Alexander Potapenko <glider at google.com> wrote: > Jack, can you please upload this test somewhere? > > On Thu, Nov 29, 2012 at 10:09 AM, Kostya Serebryany <kcc at google.com> wrote: >> +glider >> The compiler hardly matters here, I would expect the same failures with >> clang....

...ons (see the attached ipt.s file), of which at least the stores to 24(%rsp) and 16(%rsp) are redundant. Given that at MCInst level we already know if a memset is split into a sequence of stores, can we do a better job by making the backend delete these redundant stores for us? Alex -- Alexander Potapenko Software Engineer Google Germany GmbH Erika-Mann-Straße, 33 80636 München Geschäftsführer: Paul Manicle, Halimah DeLaine Prado Registergericht und -nummer: Hamburg, HRB 86891 Sitz der Gesellschaft: Hamburg -------------- next part -------------- A non-text attachment was scrubbed... Name: ipt.i T...

Could you provide an example where MSan checks an output parameter? On Fri, Mar 16, 2018 at 9:53 AM, Alexander Potapenko via llvm-dev <llvm-dev at lists.llvm.org> wrote: > Hi all, > > I'm trying to figure out which parameters of a given InlineAsm instruction > are its inputs, and which are the outputs (rationale: make sure MSan > doesn't check the output parameters of an asm() statement)....

Hey guys, My local build is broken after: >r194813 | glider | 2013-11-15 08:13:01 -0500 (Fri, 15 Nov 2013) | 2 lines > >[ASan] Add the configure+make rules for building the ASan runtime for iOS > simulator. Tim Northover was kind enough to track this down to a dependency on the “iphonesimulator” SDK. How should this issue be resolved? I'm currently following the receipe to build

...> > Tim Northover was kind enough to track this down to a dependency on > the “iphonesimulator” SDK. How should this issue be resolved? I'm > currently following the receipe to build Clang from > http://clang.llvm.org/get_started.html. > > Tx, > Cameron -- Alexander Potapenko Software Engineer Google Moscow

Hello freebsd-stable, I've got FreeBSD 4.8R and CD-RW Asus CRW-4824a (master, ata1) but when boot process: acd0: MODE_SENSE_BIG command timeout - resetting ata1: resetting .. done It repeats 15 times, then all ok boot But I can't use acd0 Alexander Potapenko -- Best regards, Amber mailto:amber@arziz.uptel.net