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To: ch huang <justlooks@gmail.com>
Cc: systemtap@sourceware.org
Subject: Re: problem in User-Space Probing
References: <CACeqxwT-v_fXLYdm6+FcCH5E+TSWQifbkY_n=Jnb7hk+xpa5+w@mail.gmail.com>
From: fche@redhat.com (Frank Ch. Eigler)
Date: Tue, 06 Mar 2012 15:56:00 -0000
In-Reply-To: <CACeqxwT-v_fXLYdm6+FcCH5E+TSWQifbkY_n=Jnb7hk+xpa5+w@mail.gmail.com> (ch huang's message of "Tue, 6 Mar 2012 11:17:28 +0800")
Message-ID: <y0maa3twwoe.fsf@fche.csb>
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ch huang <justlooks@gmail.com> writes:

> [...]
> /usr/local/share/systemtap/runtime/uprobes/uprobes.c: In function
> 'uprobe_report_exec':
> /usr/local/share/systemtap/runtime/uprobes/uprobes.c:2401: warning:
> 'uproc' may be used uninitialized in this function
> /usr/local/share/systemtap/runtime/uprobes/uprobes.c: In function
> 'uprobe_report_exit':
> /usr/local/share/systemtap/runtime/uprobes/uprobes.c:2101: warning:
> 'uproc' may be used uninitialized in this function
> i in process("/root/test").function("my_out@/root/test.c:4")

It sounds like some overpicky compiler.  Please try adding a

    = NULL;

to those declarations on those source files.  If it works for you,
please send us that diff/patch to apply to the source tree.


- FChE