Date: Wed, 22 Mar 2000 09:56:19 -0800 From: Arun Sharma <adsharma@sharmas.dhs.org> To: Daniel Eischen <eischen@vigrid.com> Cc: current@FreeBSD.ORG Subject: Re: ucontext Message-ID: <20000322095619.A30197@sharmas.dhs.org> In-Reply-To: <Pine.SUN.3.91.1000322080258.15917A-100000@pcnet1.pcnet.com>; from Daniel Eischen on Wed, Mar 22, 2000 at 08:04:37AM -0500 References: <20000321225432.A4533@sharmas.dhs.org> <Pine.SUN.3.91.1000322080258.15917A-100000@pcnet1.pcnet.com>
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On Wed, Mar 22, 2000 at 08:04:37AM -0500, Daniel Eischen wrote: > > I had them implemented and working for i386, and even had a hacked up > libc_r that used them instead of setjmp/longjmp. This was a few months > ago under 4.0-current. At the time, I thought they'd be better off > implemented as syscalls, but now I'm leaning towards library routines > similar to setjmp/longjmp (which make a syscall to change the signal > mask). > UNIX 98 specifies that setcontext should be callable from signal handlers. http://www.opengroup.org/onlinepubs/007908799/xsh/getcontext.html That pretty much means system calls. Doesn't it ? I was wrong about this being necessary for the JDK. Linux doesn't implement it either (it does have man pages and header files though!) and the JDK runs fine on Linux. I was mislead by the some of these calls, which will always fail on Linux. -Arun To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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