From mboxrd@z Thu Jan  1 00:00:00 1970
From: fche@redhat.com (Frank Ch. Eigler)
Date: Sun, 07 May 2017 11:16:59 -0400
Subject: system tap unable to refer a structure definition
In-Reply-To: <CAKJ7aR63eL8y7FC5XComwGZY60jG3D8Ggcp+UhRu2E8BPiMuOQ@mail.gmail.com>
	(Gadre Nayan's message of "Wed, 3 May 2017 16:29:45 +0530")
References: <CAKJ7aR63eL8y7FC5XComwGZY60jG3D8Ggcp+UhRu2E8BPiMuOQ@mail.gmail.com>
Message-ID: <87shkg3dec.fsf@redhat.com>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org


gadrenayan wrote:

> [...]
> c = @cast($frags[0]->f_addr, "volioship_hdr_t", 
> "/root/ngadre/unixvm-cvs/src/common/kernel/vxvm/ioship_cvm.h")
> [...]
> The header file is locally available on the machine.
> [...]
> semantic error: type definition 'volioship_hdr_t' not found in '
> /root/ngadre/unixvm-cvs/src/common/kernel/vxvm/ioship_cvm.h': operator
> '@cast' at :46:6
> [...]
> How do I make system tap refer to this structure.

@cast requires use of the syntax "kernel<header.h>" to process such
files, because they involve different compiler invocations.  That may
not be all there is to it.  Rerun stap with --vp 04 or somesuch to
get some verbose tracing of its attempts to process that header.

- FChE