Linaro GCC不支持arm926ej-s

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本文探讨了使用Linaro GCC 4.6.2012-02交叉编译工具链编译程序时遇到的问题，即程序无法在ARM926EJ-S平台上运行。文中指出Linaro GCC可能不支持ARMV5架构，并提供了从Wikipedia及官方邮件列表获取的相关信息。

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使用linaro gcc 4.6 2012-02交叉编译工具链编译的程序放到arm926ej-s上面，不能跑。经过一番google发现linaro gcc应该不支持ARMV5的架构。

参考1：Wikipedia

Linaro focuses on the use of the ARM instruction set in its versions 7a (32-bit) and 8 (64-bit) including concrete implementations of these, such as SoCs that contain Cortex-A5, Cortex-A7, Cortex-A8, Cortex-A9, Cortex-A15, Cortex-A53 or Cortex-A57 processor(s). Linaro engineering works with upstream projects on a set of requirements that are determined by the Technical Steering Committee (TSC).

参考2：https://lists.linaro.org/pipermail/linaro-toolchain/2011-March/000992.html

Andrew Stubbs

<span style="color:#FF0000;">The short answer is that, no, the Linaro *binary* releases will not 
support -march=armv5.</span>

However, you can build your own compiler from the Linaro sources, and 
then build the libraries you need to match, and you can have v5 support. 
This is not a straightforward process. :(

If you'd prefer not to build your own tools, may I recommend 
CodeSourcery's Sourcery G++ Lite for ARM GNU/Linux:

    http://www.codesourcery.com/sgpp/lite/arm

That compiler defaults to ARMv5TE. If that's too new, the toolchain also 
contains prebuilt libraries for ARMv4T (-march=armv4t) and those should 
be compatible. Although it is not the Linaro compiler, it is somewhat 
similar, and programs you build should be compatible with Ubuntu. 
(Disclosure: I work for CodeSourcery).

Hope that helps

Andrew

参考3： https://lists.linaro.org/pipermail/linaro-dev/2010-August/000530.html