The missing reference is to 'pthread_workqueue_signal_np()' which was
added to libpwq via PR #10:
https://github.com/mheily/libpwq/pull/10
I suspect that you don't have the libpwq submodule checked out in
swift-corelibs-libdispatch. Is there any contents in
swift-corelibs-libdispatch/libpwq?
If not, running:
git submodule init
git submodule update
from the swift-corelibs-libdispatch directory should fix it.
Chris
From: Brian Gesiak <modoca...@gmail.com>
To: Chris Bailey/UK/IBM@IBMGB
Cc: Rob Allen <r...@akrabat.com>, Swift Core Libs
<swift-corelibs-dev@swift.org>
Date: 30/05/2016 16:51
Subject: Re: [swift-corelibs-dev] libdispatch on Linux, or C++
std::async?
Thanks for the quick responses!
I had tried the experimental/foundation branch as well, with no luck.
Here's the full output from a clean build I just attempted:
https://gist.github.com/modocache/fcf0c78908b39834448c73ac3f50c110
Prior to the build I removed my entire build directory (which included
both libdispatch-linux-x86_64 and swift-linux-x86_64) and removed all
build artifacts from my libdispatch directory (I used `git clean -fxd` --
Make tells me there's no target `distclean`).
Looking at the build failure, it appears to be the same one that was
reported in https://bugs.swift.org/browse/SR-1242. The author of that
report indicates that
https://github.com/apple/swift-corelibs-libdispatch/pull/64 fixes the
problem. My checkout includes the commits from that pull request, but the
problem remains.
In any case, thanks for all your help! I'll keep trying. Any and all
advice would be much appreciated!
- Brian Gesiak
On Mon, May 30, 2016 at 10:22 AM, Chris Bailey <bail...@uk.ibm.com> wrote:
I'd certainly recommend picking up the experimental/foundation branch as
Rob recommends. Its where we've been doing some additional work to get
properly built into the Swift toolchain and to open up some internal APIs
needed by Foundation.
Whilst I've been building Dispatch either independently or as part of a
full toolchain using the buildbot_linux preset (with dispatch and
install-dispatch added), I've just checked your build line and its working
fine for me. It might be worth cleaning out any partial build you might
have of libdispatch in your build directory, and running 'make distclean'
from your libdispatch source directory.
FYI, we've got some further changes to the experimental/foundation branch
of libdispatch with should land in the next couple of days. This fixes
some issues with the Swift overlay, and resolves a crash that we've found
in the underlying libkqueue implementation.
Chris
From: Rob Allen via swift-corelibs-dev <
swift-corelibs-dev@swift.org>
To: Brian Gesiak <modoca...@gmail.com>
Cc: Swift Core Libs <swift-corelibs-dev@swift.org>
Date: 30/05/2016 08:08
Subject: Re: [swift-corelibs-dev] libdispatch on Linux, or C++
std::async?
Sent by: swift-corelibs-dev-boun...@swift.org
Hi,
For what it's worth, I can't get the master branch to build either, but I
can get the experimental/foundation branch to build.
Regards,
Rob....
On 30 May 2016, at 05:28, Brian Gesiak via swift-corelibs-dev <
swift-corelibs-dev@swift.org> wrote:
Hello all!
I'm working on https://bugs.swift.org/browse/SR-710, which involves
porting SourceKit to Linux. SourceKit contains a handful of references to
libdispatch symbols.
I have two questions:
1. Could someone share a set of instructions to build
swift-corelibs-libdispatch on Linux? I'm using Ubuntu 15.10 and have
installed [the dependencies listed here](
https://lists.swift.org/pipermail/swift-corelibs-dev/Week-of-Mon-20151207/000122.html
). I have tried using both `swift/utils/build-script --libdispatch` as
well as the instructions in the swift-corelibs-libdispatch `INSTALL` file.
Both fail with the [same errors](
https://gist.github.com/modocache/8389d5d64e39ca5a4281500f84e9ce11). Any
tips?
2. I don't know much about C++, but from what I understand the C++ stdlib
provides tools for asynchronous programming. I list SourceKit's uses of
libdispatch in a comment on https://bugs.swift.org/browse/SR-1639. For
those familiar with both C++ and libdispatch: do you think it's a good
idea to migrate to C++, at least for now?
Any advice would be appreciated. Thanks!!
- Brian Gesiak
--
Development thoughts at http://akrabat.com
Daily Jotter for Mac OS X at http://dailyjotter.com
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