I was able to reproduce Geoffrey's failure on Mac OS X 10.8, with LLVM
3.2. The stage2 compiler eventually segfaults ("Segmentation Fault
11") during the build process after being compiled successfully with
stage1.
Something recently happened, because I was bootstrapping fine with
LLVM 3.2 recently after David's fixes landed (I filed a small raft of
tickets.) It's times like these I really wish we had a reliable 'git
bisect'...
I unfortunately haven't had time to dig into this, but I'll file a
ticket to track it this morning. I can also reproduce this on my
ARM/Linux machine. Previously, I got it to at least get done with
stage2, and fail later in DPH. Now it seems to fail earlier in the
same way the OS X build does.
OS's:
- 32bit ARM/Linux, Ubuntu 12.10 Linaro derivative; GCC 4.6.3.
Bootstrapping compiler is GHC 7.4.1, LLVM 3.2.
- 64bit OS X 10.8 Mountain Lion, llvm-gcc (XCode 4.6.) Bootstrapping
compiler is GHC 7.6.2, LLVM 3.2.
Also, @Jan: the warnings during the build process probably come from
your bootstrap compiler. The built compiler (stage1/stage2) both
support LLVM 3.2 directly and have correct version checks, but the
bootstrap compiler you're using won't. In practice this mismatch never
proved a problem in the past; just weeks ago the entire tree validated
with the LLVM build on OS X with no failures and I was working on ARM
things.
I'll file a ticket and dig in soon when I get a chance.
On Thu, Mar 14, 2013 at 9:29 AM, Geoffrey Mainland
Hm, you're sure that LLVM 3.2 is in your path when you configure GHC? I removed LLVM 3.0 from my system so there's no possibility of mistaking 3.2 with 3.0. I'm also getting lots of compilation warnings about untested LLVM version -
On 03/14/2013 02:15 PM, Jan Stolarek wrote: this didn't happen with 3.0.
This is HEAD? Yes. Commit 56353e3da9d5718dfd25e25ccf61c78b25deefe8
Linux x64? Yes:
[killy@xerxes : ~] uname -a Linux xerxes.discovery 2.6.37.6-24-desktop #1 SMP PREEMPT 2012-10-18
22:36:08 +0200 x86_64 x86_64
x86_64 GNU/Linux
What is in your build.mk file? The relevant parts are:
BuildFlavour = quick-llvm
ifeq "$(BuildFlavour)" "quick-llvm"
SRC_HC_OPTS = -H64m -O0 -fllvm GhcStage1HcOpts = -O -fllvm GhcStage2HcOpts = -O0 -fllvm GhcLibHcOpts = -O -fllvm SplitObjs = NO HADDOCK_DOCS = NO BUILD_DOCBOOK_HTML = NO BUILD_DOCBOOK_PS = NO BUILD_DOCBOOK_PDF = NO
endif
As you can see I'm not building the documentation. It's because it fails to build on my system and I don't care much about resolving that.
Janek
You don't have the following line?
GhcLibWays = $(if $(filter $(DYNAMIC_BY_DEFAULT),YES),dyn,v)
I ask because I am using a stock build.mk copied from build.mk.sample with BuildFlavour = quick-llvm, GHC HEAD, and LLVM 3.2, and my stage2 compiler crashes. It would be good to know *exactly* what the contents of your build.mk are.
What version of GHC are you using to perform the build? Are you using parallel make?
Thanks, Geoff
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