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From: "mjw at redhat dot com" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug translator/10622] unsuccessful location searches for extern $variables
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------- Additional Comments From mjw at redhat dot com  2009-09-09 21:49 -------
$ stap -e 'probe kernel.function("do_gettimeofday") { printf("xtime.tv_sec:
%d\n", $xtime->tv_sec); }'
semantic error: failed to retrieve location attribute for local 'xtime'
(dieoffset: 0x752637): identifier '$xtime' at <input>:1:73
        source: probe kernel.function("do_gettimeofday") { printf("xtime.tv_sec:
%d\n", $xtime->tv_sec); }
                                                                               
        ^
Pass 2: analysis failed.  Try again with another '--vp 01' option.

$ eu-readelf -N --debug-dump=info
/usr/lib/debug/lib/modules/2.6.30.5-43.fc11.i586/vmlinux

 [752637]    variable
             name                 "xtime"
             decl_file            3
             decl_line            100
             type                 [74c7b3]
             external             
             declaration          

So no location description in this CU. We need to look it up in the symbol table.

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=10622

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