Date: Thu, 30 Oct 1997 23:38:46 -0800 From: John-Mark Gurney <gurney_j@efn.org> To: Simon Shapiro <Shimon@i-Connect.Net> Cc: freebsd-current@FreeBSD.ORG Subject: Re: More on LINT Kernel Failure to compile Message-ID: <19971030233846.44353@hydrogen.nike.efn.org> In-Reply-To: <XFMail.971030231611.Shimon@i-Connect.Net>; from Simon Shapiro on Thu, Oct 30, 1997 at 11:16:11PM -0800 References: <XFMail.971030231611.Shimon@i-Connect.Net>
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Simon Shapiro scribbled this message on Oct 30:
> While /usr/src/sys/i386/include/lock.h says:
>
> #if !defined(SIMPLELOCK_DEBUG) && NCPUS > 1
> /*
> * This set of defines turns on the real functions in i386/isa/apic_ipl.s.
> */
> #define simple_lock_init(alp) s_lock_init(alp)
> #define simple_lock(alp) s_lock(alp)
> #define simple_lock_try(alp) s_lock_try(alp)
> #define simple_unlock(alp) s_unlock(alp)
>
> #endif /* !SIMPLELOCK_DEBUG && NCPUS > 1 */
>
> So, if we debug simple locks or have only one CPU, what defines these
> symbols?
I hate to ask you, but could you use grep a bit more?? here is how I
found out where these symbols are defined:
$ gren ^simple_lock_init kern/*
kern_lock.c:simple_lock_init(alp)
$ vi kern/kern_lock.c
/^simple_lock_init
see that a few lines further down is:
void
_simple_lock(alp, id, l)
struct simplelock *alp;
then I do:
$ grep _simple_lock sys/*
lock.h:int _simple_lock_try __P((struct simplelock *alp, const char *, int));
lock.h:#define simple_lock_try(alp) _simple_lock_try(alp, __FILE__, __LINE__)
lock.h:void _simple_lock __P((struct simplelock *alp, const char *, int));
lock.h:#define simple_lock(alp) _simple_lock(alp, __FILE__, __LINE__)
proc.h: short p_simple_locks; /* DEBUG: count of held simple locks */
the above took me maybe a minute... and composing this message took about
five...
--
John-Mark Gurney Modem/FAX: +1 541 683 6954
Cu Networking
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