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Diffstat (limited to 'bsp-howto/miscellanous_support.rst')
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diff --git a/bsp-howto/miscellanous_support.rst b/bsp-howto/miscellanous_support.rst index 015adb4..10b45f7 100644 --- a/bsp-howto/miscellanous_support.rst +++ b/bsp-howto/miscellanous_support.rst @@ -10,44 +10,6 @@ Miscellaneous Support Files This chapter contains outdated and confusing information. -GCC Compiler Specifications File -================================ - -The file ``bsp_specs`` defines the start files and libraries that are always -used with this BSP. The format of this file is admittedly cryptic and this -document will make no attempt to explain it completely. Below is the -``bsp_specs`` file from the PowerPC psim BSP: - -.. code-block:: c - - %rename endfile old_endfile - %rename startfile old_startfile - %rename link old_link - *startfile: - %{!qrtems: %(old_startfile)} \ - %{!nostdlib: %{qrtems: ecrti%O%s rtems_crti%O%s crtbegin.o%s start.o%s}} - *link: - %{!qrtems: %(old_link)} %{qrtems: -Qy -dp -Bstatic -e _start -u __vectors} - *endfile: - %{!qrtems: %(old_endfile)} %{qrtems: crtend.o%s ecrtn.o%s} - -The first section of this file renames the built-in definition of some -specification variables so they can be augmented without embedded their -original definition. The subsequent sections specify what behavior is expected -when the ``-qrtems`` option is specified. - -The ``*startfile`` section specifies that the BSP specific file ``start.o`` -will be used instead of ``crt0.o``. In addition, various EABI support files -(``ecrti.o`` etc.) will be linked in with the executable. - -The ``*link`` section adds some arguments to the linker when it is invoked by -GCC to link an application for this BSP. - -The format of this file is specific to the GNU Compiler Suite. The argument -used to override and extend the compiler built-in specifications is available -in all recent GCC versions. The ``-specs`` option is present in all ``egcs`` -distributions and ``gcc`` distributions starting with version 2.8.0. - README Files ============ |