search for: _unwind_reason_code

...ib into my new lib for some such functions - and exceptions 'seem' to work again. (the critical functions being found in eh_personality.o, unwind-dw2.o, eh_throw.o) Looking at functions built using the llvm3.0-gcc front end, I noticed that R0 & R1 were spilled/restored (clobbering '_Unwind_Reason_Code') , along with the callee saved regs. So how are things meant to work? For example take: define i32 @_Unwind_RaiseException(%struct._Unwind_Exception* %exc) This calls: @llvm.eh.unwind.init() followed by: call void @llvm.eh.return() ret i32 '_Unwind_Reason_Code' c...

...one go by adding libcxx and libcxxabi into llvm/src/projects. The first stage obviously has to use the system compiler, which is GCC 4.8.2, but I'm getting an error on ARM: Unwind-EHABI.cpp:1000:47: error: expected unqualified-id before string constant _LIBUNWIND_EXPORT extern "C" _Unwind_Reason_Code with the caret pointing at _Unwind_Reason_Code. With Clang, it passes, as it's what I'm using on the libcxx ARM buildbot. I tried using -std=c++11 on CXXFLAGS, but didn't seem to have made a difference. Ideas? cheers, --renato PS: I have other problems with AArch64, but let's...

In lib/gcc_personality_v0.c, I believe the type of the exception_cleanup member of the struct _Unwind_Exception is incorrect. It has a return type of _Unwind_Reason_Code versus a return type of void as specified in http://refspecs.freestandards.org/abi-eh-1.21.html, and as can be seen in unwind.h on Linux, and OS X 10.6.x (the latter's unwind.h is under the Developer directory tree). The attached patch changes this return type to void. Garrison ----------...

Hi Renato, On 24 July 2015 at 04:35, Renato Golin <renato.golin at linaro.org> wrote: > Unwind-EHABI.cpp:1000:47: error: expected unqualified-id before string constant > _LIBUNWIND_EXPORT extern "C" _Unwind_Reason_Code GCC seems to be stricter than Clang about the ordering of __attribute__ (from _LIBUNWIND_EXPORT) and 'extern "C"'. You can play around with: __attribute__((visibility("default"))) extern "C" void func() {} Cheers. Tim.

...te this downside we could make a small test to check that the users build environment is set up correctly -- then there's at least a simple advertised procedure that the user can use to double check their unwinder is MTE-aware. ## Approach 2. An alternative is to introduce new values into the _Unwind_Reason_Code enum so that a personality routine can inform the unwinder that a given function has its stack tagged for MTE. The untagging will still be done in the general unwinder, but those functions which tag their stack use a different personality routine (e.g. __gxx_personality_mte_v0) that returns a new...

...] Building C object lib/builtins/CMakeFiles/clang_rt.builtins-armhf.dir/gcc_personality_v0.c.o /home/llvm_all/llvm/projects/compiler-rt/lib/builtins/gcc_personality_v0.c:148:47: warning: declaration of 'struct _Unwind_Exception' will not be visible outside of this function [-Wvisibility] _Unwind_Reason_Code __gnu_unwind_frame(struct _Unwind_Exception *, ^ /home/llvm_all/llvm/projects/compiler-rt/lib/builtins/gcc_personality_v0.c:153:23: warning: declaration of 'struct _Unwind_Exception' will not be visible outside of this function [-Wvisibility]...

...ject lib/builtins/CMakeFiles/clang_rt.builtins-armhf.dir/gcc_personality_v0.c.o >> /home/llvm_all/llvm/projects/compiler-rt/lib/builtins/gcc_personality_v0.c:148:47: warning: declaration of 'struct _Unwind_Exception' will not be visible outside of this function [-Wvisibility] >> _Unwind_Reason_Code __gnu_unwind_frame(struct _Unwind_Exception *, >> ^ >> /home/llvm_all/llvm/projects/compiler-rt/lib/builtins/gcc_personality_v0.c:153:23: warning: declaration of 'struct _Unwind_Exception' will not be visible outside of this functio...

...ct lib/builtins/CMakeFiles/clang_rt.builtins-armhf.dir/gcc_personality_v0.c.o > > /home/llvm_all/llvm/projects/compiler-rt/lib/builtins/gcc_personality_v0.c:148:47: warning: declaration of 'struct _Unwind_Exception' will not be visible outside of this function [-Wvisibility] > > _Unwind_Reason_Code __gnu_unwind_frame(struct _Unwind_Exception *, > > ^ > > /home/llvm_all/llvm/projects/compiler-rt/lib/builtins/gcc_personality_v0.c:153:23: warning: declaration of 'struct _Unwind_Exception' will not be visible outside of this functi...

...-ext.c:108:1: warning: redeclaration of '_Unwind_Backtrace' should not add 'dllexport' attribute [-Wdll-attribute-on-redeclaration] _Unwind_Backtrace(_Unwind_Trace_Fn callback, void *ref) { ^ C:/Users/clang/libunwind/include\unwind.h:307:28: note: previous declaration is here extern _Unwind_Reason_Code _Unwind_Backtrace(_Unwind_Trace_Fn, void *); ^ C:/Users/clang/libunwind/src/UnwindLevel1-gcc-ext.c:187:31: warning: redeclaration of '_Unwind_Find_FDE' should not add 'dllexport' attribute [-Wdll-attribute-on-redeclaration] _LIBUNWIND_EXPORT const void *_U...

...CMakeFiles/clang_rt.builtins-armhf.dir/gcc_personality_v0.c.o > >>> /home/llvm_all/llvm/projects/compiler-rt/lib/builtins/gcc_personality_v0.c:148:47: warning: declaration of 'struct _Unwind_Exception' will not be visible outside of this function [-Wvisibility] > >>> _Unwind_Reason_Code __gnu_unwind_frame(struct _Unwind_Exception *, > >>> ^ > >>> /home/llvm_all/llvm/projects/compiler-rt/lib/builtins/gcc_personality_v0.c:153:23: warning: declaration of 'struct _Unwind_Exception' will not be visible outsi...

...ing C object lib/builtins/CMakeFiles/clang_rt.builtins-armhf.dir/gcc_personality_v0.c.o > /home/llvm_all/llvm/projects/compiler-rt/lib/builtins/gcc_personality_v0.c:148:47: warning: declaration of 'struct _Unwind_Exception' will not be visible outside of this function [-Wvisibility] > _Unwind_Reason_Code __gnu_unwind_frame(struct _Unwind_Exception *, > ^ > /home/llvm_all/llvm/projects/compiler-rt/lib/builtins/gcc_personality_v0.c:153:23: warning: declaration of 'struct _Unwind_Exception' will not be visible outside of this function [-Wvis...

...ing C object lib/builtins/CMakeFiles/clang_rt.builtins-armhf.dir/gcc_personality_v0.c.o > /home/llvm_all/llvm/projects/compiler-rt/lib/builtins/gcc_personality_v0.c:148:47: warning: declaration of 'struct _Unwind_Exception' will not be visible outside of this function [-Wvisibility] > _Unwind_Reason_Code __gnu_unwind_frame(struct _Unwind_Exception *, > ^ > /home/llvm_all/llvm/projects/compiler-rt/lib/builtins/gcc_personality_v0.c:153:23: warning: declaration of 'struct _Unwind_Exception' will not be visible outside of this function [-Wvis...

Hello, on the problems cross-building compiler-rt: Tried to follow https://llvm.org/docs/HowToCrossCompileBuiltinsOnArm.html which lead to this cmake: cmake -G "Ninja" ../llvm/projects/compiler-rt/ -DCOMPILER_RT_BUILD_BUILTINS=ON -DCOMPILER_RT_BUILD_SANITIZERS=OFF -DCOMPILER_RT_BUILD_XRAY=OFF -DCOMPILER_RT_BUILD_LIBFUZZER=OFF -DCOMPILER_RT_BUILD_PROFILE=OFF