On Mon, 19 Dec 2005 02:20:59 -0800,
Andrew Morton <[email protected]> wrote:
>Or we could special-case kzalloc() and kstrdup() in slab.c - use
>builtin_return_address(1) if builtin_return_address(0) is within those
>functions. Dunno if that's worth the fuss though.
builtin_return_address(1) on i386 only works with stack frame pointers.
Without stack frame pointers, builtin_return_address(1) gets garbage.
builtin_return_address(0) is the only value that is guaranteed to work
with and without stack frame pointers.
Even with frame pointers, tail recursion confuses builtin_return_address(1)
on i386.
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