Messages in this thread Patch in this message | | | Date | Tue, 16 Dec 2008 15:53:11 +0100 | From | Markus Metzger <> | Subject | [patch 3/3] x86, bts: correctly report invalid bts records |
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Correctly report a cleared BTS record as invalid. Used to be reported as branch from 0 to 0.
Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> ---
Index: ftrace/arch/x86/kernel/ds.c =================================================================== --- ftrace.orig/arch/x86/kernel/ds.c 2008-12-15 09:29:05.000000000 +0100 +++ ftrace/arch/x86/kernel/ds.c 2008-12-15 11:32:04.000000000 +0100 @@ -484,6 +484,9 @@ out->qualifier = bts_branch; out->variant.lbr.from = bts_get(at, bts_from); out->variant.lbr.to = bts_get(at, bts_to); + + if (!out->variant.lbr.from && !out->variant.lbr.to) + out->qualifier = bts_invalid; } return ds_cfg.sizeof_rec[ds_bts]; --------------------------------------------------------------------- Intel GmbH Dornacher Strasse 1 85622 Feldkirchen/Muenchen Germany Sitz der Gesellschaft: Feldkirchen bei Muenchen Geschaeftsfuehrer: Douglas Lusk, Peter Gleissner, Hannes Schwaderer Registergericht: Muenchen HRB 47456 Ust.-IdNr. VAT Registration No.: DE129385895 Citibank Frankfurt (BLZ 502 109 00) 600119052 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies.
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