From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Sam Ravnborg <sam@ravnborg.org>
Cc: Andrew Morton <akpm@osdl.org>,
linuxppc64-dev <linuxppc64-dev@ozlabs.org>,
Linux Kernel list <linux-kernel@vger.kernel.org>,
Linus Torvalds <torvalds@osdl.org>
Subject: Re: [PATCH] ppc64: Implement a vDSO and use it for signal trampoline
Date: Tue, 01 Feb 2005 16:55:01 +1100 [thread overview]
Message-ID: <1107237301.5963.67.camel@gaston> (raw)
In-Reply-To: <20050201054149.GA8136@mars.ravnborg.org>
> 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.
Ben.
prev parent reply other threads:[~2005-02-01 5:55 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-31 6:04 Benjamin Herrenschmidt
2005-01-31 19:27 ` Sam Ravnborg
2005-01-31 23:15 ` Benjamin Herrenschmidt
2005-02-01 0:38 ` Benjamin Herrenschmidt
2005-02-01 5:41 ` Sam Ravnborg
2005-02-01 5:55 ` Benjamin Herrenschmidt [this message]
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