Date: Sun, 28 Oct 2007 19:43:18 +0100 From: Roman Divacky <rdivacky@freebsd.org> To: "Valery V.Chikalov" <valera@chikalov.dp.ua> Cc: freebsd-emulation@freebsd.org Subject: Re: Linux emulation on FreeBSD AMD64 Message-ID: <20071028184318.GA57240@freebsd.org> In-Reply-To: <4724D99C.3080105@chikalov.dp.ua> References: <4721AB07.20708@novakom.com.ua> <fg05l9$n32$2@ger.gmane.org> <4723A8D6.6020002@chikalov.dp.ua> <20071028112910.GA84830@freebsd.org> <4724CBCA.30500@chikalov.dp.ua> <4724D99C.3080105@chikalov.dp.ua>
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On Sun, Oct 28, 2007 at 08:49:00PM +0200, Valery V.Chikalov wrote:
> Valery V.Chikalov wrote:
> >Roman Divacky wrote:
> >>>
> >>>and got something like:
> >>>
> >>>Oct 27 19:42:59 tiger kernel: mprotect addr:2a27d000, return 0
> >>>Oct 27 19:42:59 tiger kernel: mprotect addr:2a7c1000, return 0
> >>>Oct 27 19:42:59 tiger kernel: mprotect addr:2a7cd000, return 0
> >>>Oct 27 19:42:59 tiger kernel: mprotect addr:2a7e2000, return 0
> >>>Oct 27 19:42:59 tiger kernel: mprotect addr:2a7ef000, return 0
> >>>Oct 27 19:43:09 tiger kernel: mprotect addr:55c00000, return 13
> >>>Oct 27 19:43:09 tiger kernel: mprotect addr:55c81000, return 13
> >>>
> >>>where 13 is EACCES.
> >>
> >>can you show what are the "prot" and "len" arguments?
Index: linux_machdep.c
===================================================================
RCS file: /home/ncvs/src/sys/i386/linux/linux_machdep.c,v
retrieving revision 1.78
diff -u -r1.78 linux_machdep.c
--- linux_machdep.c 20 Jul 2007 08:35:18 -0000 1.78
+++ linux_machdep.c 28 Oct 2007 18:42:15 -0000
@@ -803,8 +803,10 @@
bsd_args.addr = uap->addr;
bsd_args.len = uap->len;
bsd_args.prot = uap->prot;
+#if 0
if (bsd_args.prot & (PROT_READ | PROT_WRITE | PROT_EXEC))
bsd_args.prot |= PROT_READ | PROT_EXEC;
+#endif
return (mprotect(td, &bsd_args));
}
does this help?
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