[LLVMdev] does new EH require newer linker?

[Jack Howarth]

   Is the new EH scheme completely compatible with the existing linker in Xcode 4.1?
I am finding that today's changes break the ability to link xplor-nih with dragonegg
under FSF gcc 4.6.2...

de-g++46 -c thread.cc -O3 -ffast-math -funroll-loops -g  -DX_MMAP_FLAGS=0 -DFORTRAN_INIT -fno-common  -DDARWIN -D_REENTRANT -DNDEBUG  -I/Users/howarth/xplor-nih-2.27/vmd/ -I/Users/howarth/xplor-nih-2.27/arch/Darwin_11_x86_64/include -I/Users/howarth/xplor-nih-2.27/CDSlib -DCPLUSPLUS -DUSE_CDS_NAMESPACE -I/Users/howarth/xplor-nih-2.27/vmd/ -I/Users/howarth/xplor-nih-2.27/arch/Darwin_11_x86_64/include -I/Users/howarth/xplor-nih-2.27/CDSlib -I/Users/howarth/xplor-nih-2.27/common
de-g++46 -dynamiclib -fdefault-integer-8 -O3 -ffast-math -funroll-loops -g -flat_namespace -undefined suppress -single_module dpApi.o vmd.o vmdInter.o tclStream.o dpStream.o ssStream.o publicVMDInter.o thread.o -o libvmd.dylib    -lcrypto
collect2: ld terminated with signal 11 [Segmentation fault: 11]
make[2]: *** [libvmd.dylib] Error 1
make[1]: *** [lib] Error 2
make: *** [vmd] Error 2

at

/usr/bin/ld -dynamic -dylib -arch x86_64 -flat_namespace -macosx_version_min 10.7.2 -single_module -undefined suppress -weak_reference_mismatches non-weak -undefined suppress -o libvmd.dylib -ldylib1.10.5.o -L/sw/lib/gcc4.6/lib/gcc/x86_64-apple-darwin11.0.0/4.6.1 -L/sw/lib/gcc4.6/lib/gcc/x86_64-apple-darwin11.0.0/4.6.1/../../.. dpApi.o vmd.o vmdInter.o tclStream.o dpStream.o ssStream.o publicVMDInter.o thread.o -lcrypto -lstdc++ -no_compact_unwind -lSystem -lgcc_ext.10.5 -lgcc -lSystem /sw/lib/gcc4.6/lib/gcc/x86_64-apple-darwin11.0.0/4.6.1/crtfastmath.o -v

[MacPro:~/xplor-nih-2.27/vmd/bin.Darwin_11_x86_64] howarth% gdb /usr/bin/ld
GNU gdb 6.3.50-20050815 (Apple version gdb-1705) (Fri Jul  1 10:50:06 UTC 2011)
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "x86_64-apple-darwin"...Reading symbols for shared libraries ... done

(gdb) r -dynamic -dylib -arch x86_64 -flat_namespace -macosx_version_min 10.7.2 -single_module -undefined suppress -weak_reference_mismatches non-weak -undefined suppress -o libvmd.dylib -ldylib1.10.5.o -L/sw/lib/gcc4.6/lib/gcc/x86_64-apple-darwin11.0.0/4.6.1 -L/sw/lib/gcc4.6/lib/gcc/x86_64-apple-darwin11.0.0/4.6.1/../../.. dpApi.o vmd.o vmdInter.o tclStream.o dpStream.o ssStream.o publicVMDInter.o thread.o -lcrypto -lstdc++ -no_compact_unwind -lSystem -lgcc_ext.10.5 -lgcc -lSystem /sw/lib/gcc4.6/lib/gcc/x86_64-apple-darwin11.0.0/4.6.1/crtfastmath.o
Starting program: /usr/bin/ld -dynamic -dylib -arch x86_64 -flat_namespace -macosx_version_min 10.7.2 -single_module -undefined suppress -weak_reference_mismatches non-weak -undefined suppress -o libvmd.dylib -ldylib1.10.5.o -L/sw/lib/gcc4.6/lib/gcc/x86_64-apple-darwin11.0.0/4.6.1 -L/sw/lib/gcc4.6/lib/gcc/x86_64-apple-darwin11.0.0/4.6.1/../../.. dpApi.o vmd.o vmdInter.o tclStream.o dpStream.o ssStream.o publicVMDInter.o thread.o -lcrypto -lstdc++ -no_compact_unwind -lSystem -lgcc_ext.10.5 -lgcc -lSystem /sw/lib/gcc4.6/lib/gcc/x86_64-apple-darwin11.0.0/4.6.1/crtfastmath.o
Reading symbols for shared libraries ++......................... done

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x0000000000000028
0x00000001000159b9 in mach_o::relocatable::Section<x86_64>::addRelocFixup ()
(gdb) bt
#0  0x00000001000159b9 in mach_o::relocatable::Section<x86_64>::addRelocFixup ()
#1  0x0000000100047a4c in mach_o::relocatable::Section<x86_64>::makeFixups ()
#2  0x00000001000437a3 in mach_o::relocatable::Parser<x86_64>::parse ()
#3  0x000000010001ec17 in mach_o::relocatable::Parser<x86_64>::parse ()
#4  0x000000010001809f in mach_o::relocatable::parse ()
#5  0x0000000100070ffc in ld::tool::InputFiles::makeFile ()
#6  0x00000001000726f9 in ld::tool::InputFiles::InputFiles ()
#7  0x0000000100012947 in main ()
(gdb)