On 2 February 2013 00:13, Derek Rollend <derek.roll...@gmail.com> wrote: > Hello, > > I am currently trying to determine how much I can optimize OpenCV using the > ARM's VFP and the Linaro nano image. I have downloaded the > arm-linux-gnueabihf-gcc & arm-linux-gnueabihf-g++ compilers, successfully > cross-compiled OpenCV using those compilers (with -O3 -mfloat-abi=hard > -ftree-vectorize -funroll-loops), and compiled an example OpenCV program > with the arm-linux-gnueabihf-g++ compiler (with the same flags). However, > when I try and run my executable within Linaro (running on a gumstix overo) > I get "/lib/arm-linux-gnueabihf/libm.so.6: version `GLIBC_2.15' not found > (required by /usr/lib/libopencv_core.so.2.2). > > I assume that this is because on my build machine (x86 Ubuntu 10.04) where I > cross compiled the OpenCV libraries I am using libc-2.15, and on the target > (gumstix) the loader can't find libc-2.15. However, within the > gcc-linaro-arm-linux-gnueabihf-4.7 tar ball I downloaded today, there is a > libc-2.15.so file in there that I copied into /lib/ on the gumstix. Still > no success though when I try running my executable. > > Any recommendations on things to try? I am hesitant to just put a newer > version of glibc in Linaro as it seems like that could screw a lot of things > up. Should I attempt to re-build OpenCV somehow with an older version of > glibc (namely libc-2.13)?
Expand the entire sysroot tarball you have onto your ARM board into some location (say /opt/gcc-linaro - but anywhere will do). Then do: LD_LIBRARY_PATH=/opt/gcc-linaro/lib/arm-linux-gnueabihf program-to-execute args Thanks, Matt -- Matthew Gretton-Dann Linaro Toolchain Working Group matthew.gretton-d...@linaro.org _______________________________________________ linaro-toolchain mailing list linaro-toolchain@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-toolchain
