perf symbols: Avoid resolving [kernel.kallsyms] to real path for buildid cache
authorLin Ming <ming.m.lin@intel.com>
Thu, 3 Mar 2011 15:23:57 +0000 (23:23 +0800)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Wed, 9 Mar 2011 16:44:10 +0000 (13:44 -0300)
commit7ee235efe5f86f239ce73915fd2e15f4d14259c6
tree25d412900cde7670239bdfdf0fee90103122bf61
parenta639dc64e52183a361c260e562e73b0800b89072
perf symbols: Avoid resolving [kernel.kallsyms] to real path for buildid cache

kallsyms has a virtual file name [kernel.kallsyms].  Currently, it can't
be added to buildid cache successfully because the code
(build_id_cache__add_s) tries to resolve [kernel.kallsyms] to a real
absolute pathname and that fails.

Fixes it by not resolving it and just use the name [kernel.kallsyms].
So dir ~/.debug/[kernel.kallsyms] is created.

Original bug report at:
https://lkml.org/lkml/2011/3/1/524

Tested-by: Han Pingtian <phan@redhat.com>
Cc: Han Pingtian <phan@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1299165837-27817-1-git-send-email-ming.m.lin@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/header.c