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[Bug runtime/6849] $$vars fails to display local variables on ppc64 system
- From: "srinivasa at in dot ibm dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 19 Aug 2008 13:14:35 -0000
- Subject: [Bug runtime/6849] $$vars fails to display local variables on ppc64 system
- References: <20080819065222.6849.srinivasa@in.ibm.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From srinivasa at in dot ibm dot com 2008-08-19 13:14 -------
(In reply to comment #1)
> A ".return" probe cannot have access to locals within a function body,
> since none are in scope. It can at best show (entry-time snapshotted
> copies of) function parameters.
>
Frank
Iam not able see values of local variables in below scenarios too.
=====================================
[root@llm27lp1 src]# ./stap -e 'probe syscall.open { printf("%s \n", $$vars)}'
filename=0x10020cf6 flags=0x880 mode=0x0 ret=?
filename=0x10020cf6 flags=0x880 mode=0x0 ret=?
filename=0x20006d30 flags=0x0 mode=0x1b6 ret=?
filename=0x20006c50 flags=0x0 mode=0x1b6 ret=?
================================================
[root@llm27lp1 src]# ./stap -e 'probe
kernel.statement("sys_open@fs/open.c:1039") { printf("%s \n", $$vars)}'
filename=0x10020cf6 flags=0x880 mode=0x0 ret=?
filename=0x10020cf6 flags=0x880 mode=0x0 ret=?
=====================================================
--
http://sourceware.org/bugzilla/show_bug.cgi?id=6849
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