On Sat, Oct 09, 2004 at 02:58:39PM -0700, Om wrote:
> struct kernel_param *p;
>
> p = &__setup_start ;
>
> I who creates __setup_start? I saw in arch/i386/vmlinux.lds (linker
> script) the following
>
> __setup_start = .;
> .setup.init : { *(.setup.init) }
> __setup_end = .;
__setup_start is a label that marks the .setup.init section. This section is an
array of kernel_param structures, which is installed by the
__setup("kernel_param", param_evaluation_function) macro.
Hence you can easily define a kernel boot parameter which will then be
evaluated by the checksetup function.
Clemens
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