Add libunwind build script

Not functionnal yet

Dockerfile

@@ -131,23 +131,26 @@ RUN git clone -b release_38 --depth=1 https://github.com/llvm-mirror/libcxx.git
     git clone -b release_38 --depth=1 https://github.com/llvm-mirror/libcxxabi.git && \
     git clone -b release_38 --depth=1 https://github.com/llvm-mirror/libunwind.git
 
+COPY libunwind-0002.patch /build/patches/
+
 RUN cd libcxx && \
     git am /build/patches/libcxx-*.patch
 
 RUN cd libunwind && \
     git am /build/patches/libunwind-*.patch
 
-#RUN cd libunwind && mkdir build && cd build && \
+RUN cd libunwind && mkdir build && cd build && \
-#    CXXFLAGS="-nodefaultlibs" \
+    CXXFLAGS="-nodefaultlibs -D_LIBUNWIND_IS_BAREMETAL" \
-#    LDFLAGS="/build/prefix/armv7-w64-mingw32/lib/crt2.o /build/prefix/armv7-w64-mingw32/lib/crtbegin.o -lmingw32 /build/prefix/bin/../lib/clang/3.8.1/lib/windows/libclang_rt.builtins-arm.a -lmoldname -lmingwex -lmsvcrt -ladvapi32 -lshell32 -luser32 -lkernel32 /build/prefix/armv7-w64-mingw32/lib/crtend.o" \
+    LDFLAGS="/build/prefix/armv7-w64-mingw32/lib/crt2.o /build/prefix/armv7-w64-mingw32/lib/crtbegin.o -lmingw32 /build/prefix/bin/../lib/clang/3.8.1/lib/windows/libclang_rt.builtins-arm.a -lmoldname -lmingwex -lmsvcrt -ladvapi32 -lshell32 -luser32 -lkernel32 /build/prefix/armv7-w64-mingw32/lib/crtend.o" \
-#    cmake \
+    cmake \
-#        -DCMAKE_CXX_COMPILER_WORKS=TRUE \
+        -DCMAKE_CXX_COMPILER_WORKS=TRUE \
-#        -DLLVM_ENABLE_LIBCXX=TRUE \
+        -DLLVM_ENABLE_LIBCXX=TRUE \
-#        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Release \
-#        -DLIBUNWIND_ENABLE_SHARED=OFF \
+        -DLIBUNWIND_ENABLE_SHARED=OFF \
-#        .. && \
+        ..
-#    make -j4 && \
+
-#    make install
+RUN cd libunwind/build && make -j4 
+RUN cd libunwind/build && make install
 
 RUN cd libcxx && mkdir build && cd build && \
     CXXFLAGS="-nodefaultlibs -D_GNU_SOURCE -D_LIBCPP_HAS_NO_CONSTEXPR" \

libunwind-0002.patch

@@ -0,0 +1,25 @@
+From 9d0332b9dac6c5925c827d8b372f3c846da8a639 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Hugo=20Beauz=C3=A9e-Luyssen?= <hugo@beauzee.fr>
+Date: Fri, 13 May 2016 15:07:26 +0200
+Subject: [PATCH] Define _Unwind_Ptr on windows
+
+---
+ src/AddressSpace.hpp | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/src/AddressSpace.hpp b/src/AddressSpace.hpp
+index ab17d42..8e5fc20 100644
+--- a/src/AddressSpace.hpp
++++ b/src/AddressSpace.hpp
+@@ -47,6 +47,8 @@ extern "C" _Unwind_Ptr __gnu_Unwind_Find_exidx(_Unwind_Ptr addr, int *len);
+ // Emulate the BSD dl_unwind_find_exidx API when on a GNU libdl system.
+ #define dl_unwind_find_exidx __gnu_Unwind_Find_exidx
+ 
++#elif defined(_WIN32)
++typedef void *_Unwind_Ptr;
+ #elif !defined(_LIBUNWIND_IS_BAREMETAL)
+ #include <link.h>
+ #else // !defined(_LIBUNWIND_IS_BAREMETAL)
+-- 
+2.8.1
+