Re: Writable sys_call_table (was: Re: [uClinux-dev] [PATCH] m68k: Merge mmu and non-mmu versions of sys_call_table)

Andreas Schwab
2011-04-19T13:25:45Z

Arnd Bergmann <arnd@arndb.de> writes:

> But it's not an array of pointers to function with signature
> void f(void).

It does not matter which kind of function pointer you use since all
function pointers are alike (unlike data pointers).

> It's an array of void pointers that we assign to function pointers of
> various types.

It is an array of function pointers. It is only void * because that
suppresses a warning (it is only accessed through assembly, so any type
the size of a pointer would do).

Andreas.

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Andreas Schwab, schwab@linux-m68k.org
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