[swift-dev] ASan runtime does not come first

Joseph Bell joe at iachieved.it
Mon Apr 25 13:43:28 CDT 2016

What I've found out so far is that the tree built in the 'install'
directory (./install/usr) is not suitable to live side-by-side with /usr/
on the host machine.  My original approach (documented on
http://dev.iachieved.it/iachievedit/) was to ball everything up into a .deb
package that installed as an overlay to /usr/, this was just to make it
simple to get started.

Now with swift-2.2 and swift-3.0 and the possibility one might want to use
both (python2.7, python3), I'm going to change over to placing in
/opt/swift/VERSION and provide some alternatives mechanism, OR, use the
approach that python2.7, 3, etc. use where there is a /usr/bin/python2.7/,
/usr/lib/python2.7/, etc. and /usr/bin/python links back there.

tl;dr:  I don't know what occurs exactly but the equivalent of rsync -a
./install/usr/ /usr/ (overlay) causes mayhem for starting the REPL.

On Mon, Apr 25, 2016 at 8:02 AM, Joseph Bell <joe at iachieved.it> wrote:

> I've just noticed (thanks to you Ryan) that compiler-rt is indeed checked
> out and included in the 14.04 build but not the 15.10.  I'm going to
> rebuild from the ground up on 15.10 to see if it grabs compiler-rt and
> reproduces, as this is being checked out by the ci.swift.org CI server.
> This error occurs before any downstream packaging (deb) and is failing the
> build itself (on the test REPL, it can't even load).  Will report back in a
> bit.
> Joe
> On Mon, Apr 25, 2016 at 7:52 AM, Ryan Lovelett <swift-dev at ryan.lovelett.me
> > wrote:
>> On Sun, Apr 24, 2016, at 05:44 PM, Joseph Bell via swift-dev wrote:
>> Well, I thought the REPL issues had all been put to rest, but now I am
>> seeing this on Ubuntu 14.04 (15.10 I do not see it):
>> ➜  package-swift-3.0 git:(swift-3.0) ✗ ./install/usr/bin/swift
>> ==18928==ASan runtime does not come first in initial library list; you
>> should either link runtime to your application or manually preload it with
>> This is with the "master" branches that build Swift 3.0, hashes:
>> $ swift swiftrevs.swift
>> swift:95e3be665d
>> llvm:752e1430fc
>> clang:1e6cba3ce3
>> lldb:a38bed5855
>> compiler-rt:a897309947
>> cmark:5af77f3c1d
>> llbuild:ea9fd78a4a
>> swiftpm:22954afe9f
>> swift-corelibs-xctest:efdde9849c
>> swift-corelibs-foundation:d2dc9f3cf9
>> swift-integration-tests:98f6c6d992
>> swift-corelibs-libdispatch:65330e06d9
>> Is anyone else building the world on Ubuntu 14.04 that can verify this?
>> I have seen this behavior many times in many scenarios. Almost always it
>> has to do with a build parameter.
>> Recently I have noticed that compiling with the "compiler-rt" project
>> seems to cause this issue frequently. I do not understand what
>> "compiler-rt" is, or what its value to Swift is, so I just omit it from my
>> builds. It maybe worth while to do the same and rebuild and see if it goes
>> away.
>> I would think that if "compiler-rt" is the source of the issues then
>> something likely needs to be submitted to bugs.swift.org.
>> Another thing to check is if your packaging Swift (dep, rpm, pacman,
>> etc...) that you are do not strip symbols from binaries and libraries as
>> part of packaging.
>> Regards,
>> Joe
>> --
>> Joseph Bell
>> http://dev.iachieved.it/iachievedit/
>> @iachievedit
>> *_______________________________________________*
>> swift-dev mailing list
>> swift-dev at swift.org
>> https://lists.swift.org/mailman/listinfo/swift-dev
> --
> Joseph Bell
> http://dev.iachieved.it/iachievedit/
> @iachievedit

Joseph Bell
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