Clang EFI PECOFF problem

build.sh

../toolchain/clang/bin/clang 
-target i686-pc--coff 
-I./include -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include 
-std=c++11 
-ffreestanding 
-fno-stack-protector 
-fpic 
-fshort-wchar 
-fno-exceptions 
-Wall -Wextra -Wno-unused-private-field -Wno-ignored-attributes 
-mno-sse -mno-sse2 -mno-mmx 
-v 
-c -o kernel.o helloworld.cpp

shell output

clang version 3.5.0
Target: i686-pc--coff
Thread model: posix
 "/Users/berkus/Hobby/Metta/toolchain/clang/bin/clang-3.5" -cc1 -triple i686-pc--coff -emit-obj 
-mrelax-all -disable-free -disable-llvm-verifier -main-file-name helloworld.cpp -mrelocation-model pic 
-pic-level 1 -mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases -target-cpu pentium4 
-target-feature -sse -target-feature -sse2 -target-feature -mmx -v 
-coverage-file /Users/berkus/Hobby/Metta/libefi/kernel.o 
-resource-dir /Users/berkus/Hobby/Metta/toolchain/clang/bin/../lib/clang/3.5.0 
-I ./include -I /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include 
-Wall -Wextra -Wno-unused-private-field -Wno-ignored-attributes -std=c++11 -fdeprecated-macro 
-fdebug-compilation-dir /Users/berkus/Hobby/Metta/libefi -ferror-limit 19 -fmessage-length 120 
-ffreestanding -mstackrealign -fobjc-runtime=gcc -fshort-wchar -fdiagnostics-show-option 
-fcolor-diagnostics -o kernel.o -x c++ helloworld.cpp
clang -cc1 version 3.5.0 based upon LLVM 3.5.0svn default target x86_64-apple-darwin13.2.0
#include "..." search starts here:
#include <...> search starts here:
 ./include
 /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include
 /usr/local/include
 /Users/berkus/Hobby/Metta/toolchain/clang/bin/../lib/clang/3.5.0/include
 /usr/include
End of search list.
fatal error: error in backend: alignment is limited to 32-bytes