Date: Wed, 04 Jan 2012 11:37:22 +0100 From: Eduardo Morras <nec556@retena.com> To: Shrikanth Kamath <shrikanth07@gmail.com>,freebsd-hackers@freebsd.org Subject: Re: DTrace and CTF interpretation Message-ID: <4EFDA3B5000F8242@> (added by postmaster@resmaa12.ono.com) In-Reply-To: <CAEOAkMWr9i7objdbi171oPLrJTY_0optL3QOKFgnDvDvx5XQxQ@mail.g mail.com> References: <CAEOAkMWr9i7objdbi171oPLrJTY_0optL3QOKFgnDvDvx5XQxQ@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
At 10:34 04/01/2012, Shrikanth Kamath wrote:
>I am facing problem with the CTF interpretation of a member in structure,
>
>e.g
>struct foo {
> struct bar a;
> uint32_t b;
> ...
> uint32_t prefix[1];
>}
>
>When converting the above member prefix, I enabled the CTF debugs,
>here is the o/p
>
>DEBUG: die 87324: mem 87636: creating member
>DEBUG: die 87324: got mloff ffffffffffffffc0
>DEBUG: die 87324: mem 87636: created "prefix" (off 4294966784 sz 0)
>
>When I use DTrace to dump this prefix field (in a structure that is
>argument to a function)
>it gives invalid access error. I guess that is expected because of the
>strange offset.
>
>Anybody knowing how to fix this in CTF convert path?
Perhaps DTrace gives the error because size is 0. Offset isn't strange.
>_______________________________________________
>freebsd-hackers@freebsd.org mailing list
>http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
>To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org"
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4EFDA3B5000F8242>