Convert makefiles to build LLVM/compiler-rt with CMake#34055

brson · 2016-06-03T02:02:34Z

This is certainly buggy, but I have successfully built on x86_64-unknown-linux-gnu and x86_64-pc-windows-gnu. I haven't built successfully on mac yet, and I've seen mysterious test failures on Linux, but I'm interested in throwing this at the bots to see what they think.

rust-highfive · 2016-06-03T02:02:45Z

r? @alexcrichton

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brson · 2016-06-03T02:05:40Z

FWIW re the mac failures: I was trying to build this on rust-mac6 and couldn't get it to recognize C++11 atomics. I'm not sure why this would be but I'm sort of crossing my fingers that clang is out of date there?

alexcrichton · 2016-06-04T00:25:56Z

mk/rt.mk

This is totally a readable makefile now!

alexcrichton · 2016-06-04T00:27:42Z

I vaguely remember that OSX failure not being spurious in rustbuild and fixing it through setting MACOSX_DEPLOYMENT_TARGET, but other than that r=me when this is ready.

This will probably bounce quite a few times as we figure out how to actually build compiler-rt for all the cross platforms, I don't think rustbuild is even prepared to do that everywhere (especially Android).

shepmaster · 2016-06-05T20:54:32Z

I tangentially asked this on the Internals forum, but why put the effort into updating the Makefiles instead of charging ahead with rustbuild?

brson · 2016-06-06T21:11:49Z

@shepmaster @alexcrichton says we're not going to be ready to remove the makefiles soon, and I want to have emscripten support soon.

brson · 2016-06-06T21:12:17Z

@alexcrichton why aren't we going to be able to remove the makefiles soon?

brson · 2016-06-06T21:17:53Z

Exporting MACOSX_DEPLOYMENT_TARGET=10.7 didn't help.

brson · 2016-06-06T22:02:25Z

I figured out that the -stdlib=libc++ flag makes #import <atomic> work, but can't see how to make the cmake atomic config check pass that flag. -DLLVM_ENABLE_LIBCXX=ON doesn't do it.

brson · 2016-06-06T22:02:49Z

@alexcrichton does rustbuild definitely work on os x?

brson · 2016-06-06T22:05:18Z

Er, I can run cmake by hand successfully, so I must have the script messed up.

brson · 2016-06-06T22:36:07Z

OK, I think it must have been a corrupted local configuration. Seems to be working now.

shepmaster · 2016-06-06T22:46:39Z

I am definitely building using rustbuild on OS X.

alexcrichton · 2016-06-06T23:01:38Z

Some messages on IRC ---

15:52 <~acrichto> brson: yeah rustbuild osx works (gated)
15:52 <~acrichto> you're right about -stdlib though, that's the flag not 
                  DEPLOYMENT_VERSION
15:52 <~acrichto> and it all comes back...
15:52 <~acrichto> brson: if you mirror the rustbuild cmake exactly it should in 
                  theory work
15:53 <~acrichto> brson: I think it's this -- 
https://github.com/rust-lang/rust/blob/master/src/bootstrap/build/mod.rs#L808
15:53 <~acrichto> you may have already found that...

But yeah I was misremembering MACOSX_DEPLOYMENT_VERSION, it's just -stdlib in CFLAGS somehow

brson · 2016-06-07T00:48:48Z

I've built successfully on OS X and am going to send this through the bots to see what happens.

@bors r+

bors · 2016-06-07T00:48:49Z

📌 Commit aebdccf has been approved by brson

sanxiyn · 2016-06-07T06:13:48Z

It seems that this will break Travis, because Ubuntu package installs LLVMConfig.cmake in a place different from what compiler-rt build system expects. I am trying to figure out how to unbreak.

Convert makefiles to build LLVM/compiler-rt with CMake This is certainly buggy, but I have successfully built on x86_64-unknown-linux-gnu and x86_64-pc-windows-gnu. I haven't built successfully on mac yet, and I've seen mysterious test failures on Linux, but I'm interested in throwing this at the bots to see what they think.

bors · 2016-06-07T07:01:13Z

⌛ Testing commit aebdccf with merge 3c55e21...

bors · 2016-06-07T07:04:52Z

💔 Test failed - auto-mac-cross-ios-opt

alexcrichton · 2016-06-22T02:25:27Z

I think this is finally ready to go. If I could quantify the amount of money it took to test this in dev I'd probably be sad, so I won't do that!

Need to restart buildbot to pick up some changes to the images, then I'll r+

alexcrichton · 2016-06-22T02:26:41Z

guh and of course travis is broken...

alexcrichton · 2016-06-22T02:44:34Z

Ok, some more hacks that were applied:

In the docker image on Travis we now somewhat-randomly symlink some folders to coerce compiler-rt to pick up the system LLVM correctly.
A few patches were applied to compiler-rt to coerce it to compile:
- working on powerpc - rust-lang/compiler-rt@a1ef94b
- working on msvc - rust-lang/compiler-rt@dd79ba2

One glaring hole is that make -j10 does not compile LLVM in parallel right now. I have no idea why and I'm still trying to figure that out...

alexcrichton · 2016-06-22T02:54:52Z

Ok, parallelism should be fixed

alexcrichton · 2016-06-22T03:39:48Z

@bors: r+

bors · 2016-06-22T03:39:49Z

📌 Commit 59db95b has been approved by alexcrichton

bors · 2016-06-22T14:40:11Z

⌛ Testing commit 59db95b with merge b592b3c...

Convert makefiles to build LLVM/compiler-rt with CMake This is certainly buggy, but I have successfully built on x86_64-unknown-linux-gnu and x86_64-pc-windows-gnu. I haven't built successfully on mac yet, and I've seen mysterious test failures on Linux, but I'm interested in throwing this at the bots to see what they think.

bors · 2016-06-22T16:43:42Z

💔 Test failed - auto-mac-64-opt-rustbuild

alexcrichton · 2016-06-22T17:32:56Z

@bors: retry

weird lldb error on OSX?

bors · 2016-06-22T17:32:59Z

alexcrichton · 2016-06-22T17:33:19Z

error may be related to #33391

bors · 2016-06-22T19:14:03Z

💔 Test failed - auto-linux-64-x-android-t

alexcrichton · 2016-06-22T19:25:19Z

@bors: retry

umm... Contention?

On Wednesday, June 22, 2016, bors notifications@github.com wrote:

💔 Test failed - auto-linux-64-x-android-t
http://buildbot.rust-lang.org/builders/auto-linux-64-x-android-t/builds/9521

—
You are receiving this because you were mentioned.
Reply to this email directly, view it on GitHub
#34055 (comment), or mute
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https://github.com/notifications/unsubscribe/AAD95BrxFR1hs6z_PqTAvF5eDuEJ7ZuBks5qOYmBgaJpZM4ItJAC
.

bors · 2016-06-23T02:28:27Z

⌛ Testing commit 59db95b with merge 930eb8a...

bors · 2016-06-23T04:11:26Z

💔 Test failed - auto-linux-64-x-android-t

alexcrichton · 2016-06-24T03:05:22Z

@bors: retry

Looks like it's stuck compiling stage1 libsyntax but I can't seem to reproduce it locally. Hoping that it's just contention locally...

bors · 2016-06-24T06:33:33Z

⌛ Testing commit 59db95b with merge 8c63d12...

Convert makefiles to build LLVM/compiler-rt with CMake This is certainly buggy, but I have successfully built on x86_64-unknown-linux-gnu and x86_64-pc-windows-gnu. I haven't built successfully on mac yet, and I've seen mysterious test failures on Linux, but I'm interested in throwing this at the bots to see what they think.

bors · 2016-06-24T10:39:46Z

brson · 2016-06-27T16:25:31Z

Wow I'm shocked this got through. Thanks for fixing it @alexcrichton

rust-highfive assigned alexcrichton Jun 3, 2016

brson force-pushed the cmake branch from 453ff0c to 1323179 Compare June 3, 2016 02:04

brson force-pushed the cmake branch 2 times, most recently from 4f7700b to 26cdf06 Compare June 3, 2016 02:09

alexcrichton reviewed Jun 4, 2016
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This is totally a readable makefile now!

brson force-pushed the cmake branch from c1b1b85 to 61c792f Compare June 6, 2016 21:31

brson force-pushed the cmake branch from 61c792f to bbcfa53 Compare June 6, 2016 22:36

brson force-pushed the cmake branch 4 times, most recently from 474b1d3 to aebdccf Compare June 7, 2016 00:47

alexcrichton force-pushed the cmake branch from 71be23a to ca66f0a Compare June 22, 2016 02:41

Convert makefiles to build LLVM/compiler-rt with CMake

59db95b

alexcrichton force-pushed the cmake branch from ca66f0a to 59db95b Compare June 22, 2016 02:54

bors merged commit 59db95b into rust-lang:master Jun 24, 2016

petrochenkov mentioned this pull request Jun 26, 2016

./configure fails on Windows/MSYS2 #34489

Closed

This was referenced Jul 2, 2016

XCode 7 complains: building for iOS simulator, but linking in object file built for OSX, for architecture x86_64 TimNN/cargo-lipo#3

Closed

iOS stdlib / universal library regression #34617

Closed

Fix ios / compiler-rt condition in makefile #34627

Closed

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