[PATCH] ppc64: Implement a vDSO and use it for signal trampoline

Benjamin Herrenschmidt benh at kernel.crashing.org
Tue Feb 1 16:55:01 EST 2005

> Right hand side is evaluated only when left hand side is used.
> Also very usefull. Example just mocked up:
> cmd_vdso32_cc = $(CC) -T $^ -o $@
> Doing late evaluation will cause correct replacement of $^ and $@ when
> used. When cmd_vdso_32 is defined make does not know the desired values
> for $^ and $@ - this is only known when cmd_vdso_32 is actually used.
> Hope this clarifies it.

Definitely, thanks.


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