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From: | Tony Kelman <tony AT kelman DOT net> |
To: | "cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com> |
Subject: | RE: [ANNOUNCEMENT] Assorted MinGW-w64 toolchain libraries and tools |
Date: | Sun, 14 Feb 2016 12:02:29 -0800 |
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>> LLVM/Clang version bumps are time-consuming to get right. I actually >> looked at 3.6, but MCJIT did not work OOTB with PE/COFF targets. I'll >> have to see what the story is with 3.7. > > Understandable. 3.8 is in RC right now so maybe try building the > release_38 branch if you get to it soon, otherwise wait a few weeks. > I'm trying to figure out how to cross-build mingw llvm via cmake > now that they've deprecated autotools (it's still there in 3.8 with > a warning, but has been deleted on trunk which will become 3.9). Okay, just FYI, building LLVM 3.8 or newer will fail with a win32-threads build of mingw-w64 unless you build with LLVM_ENABLE_THREADS=0 and completely stub out lib/Support/ThreadPool.cpp. We're using MCJIT (actually the new ORCJIT) in Julia and it's slower than the old JIT but mostly works. > I'll check your i686-libgit2 package soon, but I suspect it may be > affected by https://github.com/libgit2/libgit2/issues/3342 and need > to be built with -mincoming-stack-boundary=2 Confirmed. $ echo '#include "git2.h" void main() { git_repository* repo_ptr = NULL; char* repo_url = "https://github.com/JuliaLang/Example.jl"; char* repo_path = "Example.Bare"; git_clone_options clone_opts = GIT_CLONE_OPTIONS_INIT; clone_opts.bare = 1; git_libgit2_init(); git_clone(&repo_ptr, repo_url, repo_path, &clone_opts); git_libgit2_shutdown(); }'> clonetest.c Tony AT LAPTOP-O230JCFF ~ $ i686-w64-mingw32-gcc -L/usr/i686-w64-mingw32/sys-root/mingw/bin \ -lgit2 clonetest.c -g -o /usr/i686-w64-mingw32/sys-root/mingw/bin/clonetest.exe Tony AT LAPTOP-O230JCFF ~ $ gdb -q /usr/i686-w64-mingw32/sys-root/mingw/bin/clonetest.exe Reading symbols from /usr/i686-w64-mingw32/sys-root/mingw/bin/clonetest.exe...done. (gdb) r Starting program: /usr/i686-w64-mingw32/sys-root/mingw/bin/clonetest.exe [New Thread 8788.0x794] [New Thread 8788.0x209c] [New Thread 8788.0x638] [New Thread 8788.0x123c] Program received signal SIGSEGV, Segmentation fault. 0x6ccf9188 in libgit2!git_filebuf_commit () from /usr/i686-w64-mingw32/sys-root/mingw/bin/libgit2.dll (be sure to `rm -rf Example.Bare` between runs of this test program) -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
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