Hey, I am run into error when doing arm tool chain cross compile glibc 2.14: arm-linux-gcc -nostdlib -nostartfiles -r -o /home/user/toolchains/build-dir/build-glibc-2.14/elf/librtld.os '-Wl,-(' /home/user/toolchains/build-dir/build-glibc-2.14/elf/dl-allobjs.os /home/user/toolchains/build-dir/build-glibc-2.14/elf/rtld-libc.a -lgcc '-Wl,-)' \ -Wl,-Map,/home/user/toolchains/build-dir/build-glibc-2.14/elf/librtld.os.map arm-linux-gcc -nostdlib -nostartfiles -shared \ -Wl,-z,combreloc -Wl,-z,relro -Wl,--hash-style=both -Wl,-z,defs -Wl,--verbose 2>&1 | \ LC_ALL=C \ sed -e '/^=========/,/^=========/!d;/^=========/d' \ -e 's/\. = .* + SIZEOF_HEADERS;/& _begin = . - SIZEOF_HEADERS;/' \ > /home/user/toolchains/build-dir/build-glibc-2.14/elf/ld.so.lds arm-linux-gcc -nostdlib -nostartfiles -shared -o /home/user/toolchains/build-dir/build-glibc-2.14/elf/ld.so \ -Wl,-z,combreloc -Wl,-z,relro -Wl,--hash-style=both -Wl,-z,defs \ /home/user/toolchains/build-dir/build-glibc-2.14/elf/librtld.os -Wl,--version-script=/home/user/toolchains/build-dir/build-glibc-2.14/ld.map \ -Wl,-soname=ld-linux.so.2 -T /home/user/toolchains/build-dir/build-glibc-2.14/elf/ld.so.lds /home/user/toolchains/build-dir/build-glibc-2.14/elf/librtld.os:(.ARM.exidx+0x0): undefined reference to `__aeabi_unwind_cpp_pr0' /home/user/toolchains/build-dir/build-glibc-2.14/elf/librtld.os:(.ARM.exidx+0x18): undefined reference to `__aeabi_unwind_cpp_pr1' collect2: ld returned 1 exit status make[2]: *** [/home/user/toolchains/build-dir/build-glibc-2.14/elf/ld.so] Error 1 make[2]: Leaving directory `/home/user/toolchains/src-dir/glibc-2.14/elf' make[1]: *** [elf/subdir_lib] Error 2 make[1]: Leaving directory `/home/user/toolchains/src-dir/glibc-2.14' make: *** [all] Error 2 Can anyone help me ? Thanks very much in advance! David.