Date: Fri, 6 Apr 2007 14:43:13 -0400 From: Jung-uk Kim <jkim@FreeBSD.org> To: freebsd-current@FreeBSD.org Cc: Roman Divacky <rdivacky@FreeBSD.org>, Norikatsu Shigemura <nork@FreeBSD.org> Subject: Re: Cannot mount linprocfs by unresolving sysvs?m symbols Message-ID: <200704061443.15071.jkim@FreeBSD.org> In-Reply-To: <20070406181138.GA90738@freebsd.org> References: <20070407023855.ede13b76.nork@FreeBSD.org> <200704061407.35340.jkim@FreeBSD.org> <20070406181138.GA90738@freebsd.org>
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On Friday 06 April 2007 02:11 pm, Roman Divacky wrote: > > > is there a way to do this nicely? > > > > Probably we can improve kernel linker to do better job. ;-) I > > mean, load all dependencies before look up symbols. > > thats not what I mean.. what I want is something like > > if (function_present(foo)) > x = foo(); > else > x = SAFE_VALUE; > > use x somehow; > > so we don't have to have all modules loaded etc. the same could be > done for some syscalls, imagine > > linux_foo(params) > { > if (function_present(foo)) > return foo(params); > else > return ENOSYS; > } > > I like this better then loading all possible modules. I know what you meant but it is more heavier than what we have now. If you insist, you can do something like linux_ipc.c. Check out linux_msgctl() and linux_semctl(). Module presence check is easy. Jung-uk Kim
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