Date: Sat, 20 Oct 2012 19:47:26 -0700 From: John-Mark Gurney <jmg@funkthat.com> To: Peter Wemm <peter@wemm.org> Cc: Konstantin Belousov <kostikbel@gmail.com>, freebsd-arch@freebsd.org Subject: Re: using SSE2 in kernel C code (improving AES-NI module) Message-ID: <20121021024726.GA1563@funkthat.com> In-Reply-To: <CAGE5yCoM92rU7Ca7C7_x=3vXW%2BqO9Zc0uQhPURuMbstPDvq9yg@mail.gmail.com> References: <20121019233833.GS1967@funkthat.com> <20121020054847.GB35915@deviant.kiev.zoral.com.ua> <20121020171124.GU1967@funkthat.com> <CAGE5yCoM92rU7Ca7C7_x=3vXW%2BqO9Zc0uQhPURuMbstPDvq9yg@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Peter Wemm wrote this message on Sat, Oct 20, 2012 at 11:10 -0700:
> Or, another option.. do something like genassym or the many other
> kernel build tools. aicasm builds and runs a userland tool to
> generate something to build into the kernel. With sufficient
> cross-contamination safeguards I wonder if something similar might be
> able to be done here.
Well, looks like I may this working... Turns out I can't name the file
.s otherwise config puts it in SFILES which causes all sorts of problems..
So, I went w/ .nos, does any one else have any suggestions?
how does this look to people:
aesni_wrap2.nos optional aesni \
dependency "$S/crypto/aesni/aesni_wrap2.c" \
compile-with "${CC} -O3 -fPIC -S -o aesni_wrap2.nos $S/crypto/aesni/aesni_wrap2.c" \
no-obj no-implicit-rule before-depend \
clean "aesni_wrap2.nos"
aesni_wrap2.o optional aesni \
dependency "aesni_wrap2.nos" \
compile-with "${NORMAL_S} aesni_wrap2.nos" \
no-implicit-rule \
clean "aesni_wrap2.o"
We'll have to do something similar in the module Makefile, but that is
easier...
Also, I thought we had a better way to note that some devices depend
upon others than just throwing a depend error... If you include aesni
w/o crypto, you get error about missing cryptodev_if.h...
--
John-Mark Gurney Voice: +1 415 225 5579
"All that I will do, has been done, All that I have, has not."
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20121021024726.GA1563>