Ashutosh Naik <[email protected]> wrote:
>
> When a symbol is exported from the kernel, and say, a module would
> export the same symbol, there currently exists no mechanism to prevent
> the module from exporting this symbol. The module would still go ahead
> and export the symbol, the symbol table would now contain two copies
> of the exported symbol, and hell would break loose.
>
> This patch prevents that from happening, by checking the symbol table
> before relocation for all occurences of the Exported Symbol. If the
> symbol already exists, we branch out with -ENOEXEC. Currently, this
> search is sequential.
Do we really need to do this at runtime? We could check this when building
module depoendencies (for example). That'll be a 95% solution..
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