• Static library links differently with gcc ld and armlink

    Hi,
    I've built a static library using arm-none-eabi-gcc and used the -fdata-sections, -ffunction-sections, and --gc-sections to reduce the library memory footprint.

    I've used that library successfully within an application sample when building with…

  • unknown symbol __aeabi_uldivmod is causing my kernel module not to load. Any ideas as to why I'm seeing this? I am using gcc 4.7.2 for both the compilation of the kernel and the kernel module.

    I am compiling on an Exynos 5250-based board with Ubuntu filesystem.

    gcc -v

    Using built-in specs.

    COLLECT_GCC=gcc

    COLLECT_LTO_WRAPPER=/usr/lib/gcc/arm-linux-gnueabihf/4.7/lto-wrapper

    Target: arm-linux-gnueabihf

    Configured with: ../src/configure -v --with-pkgversion…

  • Build a shared library for DS-5

    I am trying to run the Armadillo Linear Algebra package on my Altera Cyclone V.

    Armadillo: C++ linear algebra library

    I get it to work with general Linux GCC and it runs on my Red Hat computer

    Invoking: GCC C++ Compiler
    g++ -I/usr/include -O0 -g3 -Wall -c…

  • Gcc compiler/toochain for ARMv8 ?

    In open source which is gcc cross toolchian available which can support AARCH32 and AARCH64 based on –mabi flag ?

    In gcc documentation, supported values for –mabi are ilp32 and lp64. But when I tried linaro released toolchain crosstool-NG linaro…

  • Compiler support for arch v7 & arch v8

    Hi all,

    How about the GCC compiler support of ARM arch v8 has been given. Is it full fledged, with all the options provided by ARMCC or it needs to be updated yet in future. I mean support for armcc Vs gcc

  • How to add epilog and prolog in ARM compiler compiled code ?

    g++  provides an option  -pg   which allows to write epilg and prolog for functions

    Does gcc does not have  such  an option?

  • Do we have any official benchmark comparing ARM and GNU compilers?

    Hello,

    Few of my customers started to have concerns on the quality of the GNU`s GCC compilers.

    Before I talk about the performance gain in using the ARM compiler to my clients, I would like to know is there any

    official compiler benchmark comparing the…

  • gcc warnings disappearing  on second compile or minimal change

    Hi All

    i have a problem that with our test code we have always produced a #warning for all test code that the engineers put in the production code.

    if you compile the code and then compile again the #warnings are not reproduced along with other warnin…

  • ARM tools use GCC compiled library

    Hi

    I'm using ARM tools (RVDS4) to develop a project. Now I want to use a software lib which compiled by GCC.

    I read spec of GCC and add a compile flag "-mabi=aapcs" to GCC  and rebuild the lib.

    Question:

    1. Is this enough for ARM tools using…

  • ARM GCC 4.7 tool chain and lo power state

    Hi

    I am using a ARM GCC tool chain 4.7

    My platform is a Cortex M3 based platform and we use a low power state

    In this low power state

    voltage of CM3 is reduced to 1.08 and all peripherals except RTC is put in self retaintion.

    RTC and a GPIO pin are only 2…

  • Cortex-A9 inline asm

    Note: This was originally posted on 23rd November 2012 at http://forums.arm.com

    Hi,
    I am getting below error message for arm inlin in gcc compiler , could you please tell me what
    is the reason.
    I am using Cortex-A9 processor.

    for example
    inline asm code
     …

  • Open Source Toolchains - ARM Status Update

    ARM has always been committed to work with the ecosystem and cooperate with partners to get the best out of our cores. One important aspect of the cooperation is sharing what we have done in the open source and what we plan to do in the near future.

    GNU…

    • 20150330-sixmonth-update-1q15.pdf