<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Feb 17, 2015, at 4:00 PM, Alexey Samsonov <<a href="mailto:vonosmas@gmail.com" class="">vonosmas@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="gmail_quote" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><br class="Apple-interchange-newline">On Tue, Feb 17, 2015 at 3:37 PM, Anna Zaks<span class="Apple-converted-space"> </span><span dir="ltr" class=""><<a href="mailto:ganna@apple.com" target="_blank" class="">ganna@apple.com</a>></span><span class="Apple-converted-space"> </span>wrote:<br class=""><blockquote class="gmail_quote" style="margin: 0px 0px 0px 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex;"><div style="word-wrap: break-word;" class="">Unfortunately, we do rely on the Autotools to build for darwin. </div></blockquote><blockquote class="gmail_quote" style="margin: 0px 0px 0px 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex;"><div style="word-wrap: break-word;" class=""><div class=""><br class=""></div><div class="">The lack of proper testing is very unfortunate. In the future, we will either drop the dependency on Makefile/autoconf build or add the support for sanitizer testing.</div></div></blockquote><div class=""><br class=""></div><div class="">Sorry, for some reason I had the impression that you're also more interested in CMake buiild :-/. Only now I noticed that recent Kuba's patches about -isysroot fix both makefile and CMake</div><div class="">build system (and he's probably not very happy about it).</div><div class=""><br class=""></div><div class="">I believe the effort required to port sanitizer unit tests to autotools is not worth it, and it's better to spend that time migrating the release tools to CMake. Keeping two build systems "working"<br class=""></div><div class="">was and is a manageable, but unpleasant burden. Providing a good test coverage for two runtime versions is hard, and keeping two runtime versions "equivalent" (built with the same compiler flags)</div><div class="">is close to impossible.</div></div></div></blockquote><div><br class=""></div>I agree. The solution where we only rely on cmake build would be the best option.</div><div><br class=""><blockquote type="cite" class=""><div class=""><div class="gmail_quote" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><div class=""> </div><div class="">I understand that removing autotools support right now breaks your integration. What if we just delete autotools support from all Linux builds?</div><div class=""><br class=""></div></div></div></blockquote><div><br class=""></div><div>Yes. That is fine by me.</div><br class=""><blockquote type="cite" class=""><div class=""><div class="gmail_quote" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><div class="">Speaking of autotools support, I should lay out the reason why I raised the question of removing it last week. We plan to make intrusive changes to ASan and UBSan library layout:</div><div class="">1) embed UBSan runtime into ASan to solve various initialization and integration problems of using ASan+UBSan (fixing <a href="http://llvm.org/bugs/show_bug.cgi?id=21112" class="">http://llvm.org/bugs/show_bug.cgi?id=21112</a>)</div><div class="">2) make UBSan runtime standalone, and forbid to use it with another sanitizers except for ASan.</div><div class="">Unfortunately, it means changing a bunch of build rules in *both* CMake and makefile build.</div><div class=""><br class=""></div><div class="">Ideally, I would be happy to transfer ownership of current autotools build on Darwin to you, and ask for help in implementing/testing necessary changes on Mac OS X side :)</div><div class="">At the moment we don't even have a live buildbot running autotools-built ASan on Mac, so you're in much better shape to catch and notice regressions.</div><div class=""><br class=""></div></div></div></blockquote><div><br class=""></div><div class=""><div class="">We do have public buildbots set up for OS X:</div><div class=""><br class=""></div><div class="">Here is one that is testing a makefile build. There are probably others in different configurations.</div></div><div class=""><a href="http://lab.llvm.org:8080/green/view/Clang/job/clang-stage1-configure-RA_build/" class="">http://lab.llvm.org:8080/green/view/Clang/job/clang-stage1-configure-RA_build/</a></div><div class=""><br class=""></div><div class="">We also have a buildbot running cmake tests on OS X:</div><div class=""><a href="http://lab.llvm.org:8080/green/view/All/job/clang-stage1-cmake-RA_check/" class="">http://lab.llvm.org:8080/green/view/All/job/clang-stage1-cmake-RA_check/</a></div><div class=""><br class=""></div><blockquote type="cite" class=""><div class=""><div class="gmail_quote" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><blockquote class="gmail_quote" style="margin: 0px 0px 0px 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex;"><div style="word-wrap: break-word;" class=""><div class=""><span class=""><font color="#888888" class=""><div class=""><br class=""></div></font></span><div class=""><span class=""><font color="#888888" class="">Anna.<br class=""></font></span><div class=""><div class=""><br class=""><div class=""><blockquote type="cite" class=""><div class=""><div class="h5"><div class="">On Feb 17, 2015, at 10:54 AM, Kostya Serebryany <<a href="mailto:kcc@google.com" target="_blank" class="">kcc@google.com</a>> wrote:</div><br class=""></div></div><div class=""><div class=""><div class="h5"><div dir="ltr" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;" class="">+1 (in case you still need mine)</div><div class="gmail_extra" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><br class=""><div class="gmail_quote">On Thu, Feb 12, 2015 at 6:31 PM, Alexey Samsonov<span class=""> </span><span dir="ltr" class=""><<a href="mailto:vonosmas@gmail.com" target="_blank" class="">vonosmas@gmail.com</a>></span><span class=""> </span>wrote:<br class=""><blockquote class="gmail_quote" style="margin: 0px 0px 0px 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex;"><div dir="ltr" class="">Hi everyone,<div class=""><br class=""></div><div class="">TL;DR I plan to do subj unless anyone objects.</div><div class=""><br class=""></div><div class="">Autotools support for building sanitizers was never complete, is a proper subset of CMake capabilities, and the gap between the features of CMake build and autotools is quickly increasing:</div><div class="">1) OS: autotools support Linux, Mac OS X and Android; CMake also supports FreeBSD and Windows.</div><div class="">2) Architectures: autotools support i386 and x86_64, CMake also supports MIPS, ARM/AArch64, PowerPC).</div><div class="">3) Library variants: autotools don't support building shared ASan runtime on Linux.</div><div class="">4 [!!!]) Autotools build doesn't have *any* support for building and running tests.</div><div class="">5) The sets of compiler flags we use to build runtimes are different in two builds, and are hard to kept in sync.</div><div class=""><br class=""></div><div class="">Because of (4), sanitizer runtimes built with autotools are severely undertested, and maintaining two different build systems is a burden I would like to get rid of. Now seems to be a good time for that: we've cut off 3.6 release branch, and Hans assures me that 3.7 release process will use CMake.</div><div class=""><br class=""></div><div class="">Are there existing users of configure/make that want sanitizers to be available in their build? Are there other arguments for keeping the autotools build "working" I'm missing?</div><span class=""><font color="#888888" class=""><div class=""><br class=""></div><div class="">--<span class=""> </span><br class=""><div class=""><div dir="ltr" class="">Alexey Samsonov<br class=""><a href="mailto:vonosmas@gmail.com" target="_blank" class="">vonosmas@gmail.com</a></div></div></div></font></span></div></blockquote></div><br class=""></div></div></div><span class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; float: none; display: inline !important;" class="">_______________________________________________</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; float: none; display: inline !important;" class="">LLVM Developers mailing list</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;" class=""><a href="mailto:LLVMdev@cs.uiuc.edu" target="_blank" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;" class="">LLVMdev@cs.uiuc.edu</a><span style="font-family: Helvetica; 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font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;" class="">http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev</a></span></div></blockquote></div><br class=""></div></div></div></div></div></blockquote></div><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br clear="all" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><div style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br class=""></div><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">--<span class="Apple-converted-space"> </span></span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><div class="gmail_signature" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><div dir="ltr" class="">Alexey Samsonov<br class=""><a href="mailto:vonosmas@gmail.com" target="_blank" class="">vonosmas@gmail.com</a></div></div></div></blockquote></div><br class=""></body></html>