[LLVMdev] does new EH require newer linker? (original) (raw)

Duncan Sands baldrick at free.fr
Fri Sep 2 00:23:54 PDT 2011

Hi Jack,

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...

the new scheme uses the same code generation as the old scheme. However I think Bill just turned on "compact unwind info" (or something like that) on Darwin, so that might be the cause of your problems.

Ciao, Duncan.

de-g++46 -c thread.cc -O3 -ffast-math -funroll-loops -g -DXMMAPFLAGS=0 -DFORTRANINIT -fno-common -DDARWIN -DREENTRANT -DNDEBUG -I/Users/howarth/xplor-nih-2.27/vmd/ -I/Users/howarth/xplor-nih-2.27/arch/Darwin11x8664/include -I/Users/howarth/xplor-nih-2.27/CDSlib -DCPLUSPLUS -DUSECDSNAMESPACE -I/Users/howarth/xplor-nih-2.27/vmd/ -I/Users/howarth/xplor-nih-2.27/arch/Darwin11x8664/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 -flatnamespace -undefined suppress -singlemodule 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 x8664 -flatnamespace -macosxversionmin 10.7.2 -singlemodule -undefined suppress -weakreferencemismatches non-weak -undefined suppress -o libvmd.dylib -ldylib1.10.5.o -L/sw/lib/gcc4.6/lib/gcc/x8664-apple-darwin11.0.0/4.6.1 -L/sw/lib/gcc4.6/lib/gcc/x8664-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++ -nocompactunwind -lSystem -lgccext.10.5 -lgcc -lSystem /sw/lib/gcc4.6/lib/gcc/x8664-apple-darwin11.0.0/4.6.1/crtfastmath.o -v [MacPro:~/xplor-nih-2.27/vmd/bin.Darwin11x8664] 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 "x8664-apple-darwin"...Reading symbols for shared libraries ... done (gdb) r -dynamic -dylib -arch x8664 -flatnamespace -macosxversionmin 10.7.2 -singlemodule -undefined suppress -weakreferencemismatches non-weak -undefined suppress -o libvmd.dylib -ldylib1.10.5.o -L/sw/lib/gcc4.6/lib/gcc/x8664-apple-darwin11.0.0/4.6.1 -L/sw/lib/gcc4.6/lib/gcc/x8664-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++ -nocompactunwind -lSystem -lgccext.10.5 -lgcc -lSystem /sw/lib/gcc4.6/lib/gcc/x8664-apple-darwin11.0.0/4.6.1/crtfastmath.o Starting program: /usr/bin/ld -dynamic -dylib -arch x8664 -flatnamespace -macosxversionmin 10.7.2 -singlemodule -undefined suppress -weakreferencemismatches non-weak -undefined suppress -o libvmd.dylib -ldylib1.10.5.o -L/sw/lib/gcc4.6/lib/gcc/x8664-apple-darwin11.0.0/4.6.1 -L/sw/lib/gcc4.6/lib/gcc/x8664-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++ -nocompactunwind -lSystem -lgccext.10.5 -lgcc -lSystem /sw/lib/gcc4.6/lib/gcc/x8664-apple-darwin11.0.0/4.6.1/crtfastmath.o Reading symbols for shared libraries ++......................... done Program received signal EXCBADACCESS, Could not access memory. Reason: KERNINVALIDADDRESS at address: 0x0000000000000028 0x00000001000159b9 in macho::relocatable::Section::addRelocFixup () (gdb) bt #0 0x00000001000159b9 in macho::relocatable::Section::addRelocFixup () #1 0x0000000100047a4c in macho::relocatable::Section::makeFixups () #2 0x00000001000437a3 in macho::relocatable::Parser::parse () #3 0x000000010001ec17 in macho::relocatable::Parser::parse () #4 0x000000010001809f in macho::relocatable::parse () #5 0x0000000100070ffc in ld::tool::InputFiles::makeFile () #6 0x00000001000726f9 in ld::tool::InputFiles::InputFiles () #7 0x0000000100012947 in main () (gdb)

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