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| author | Han Pingtian <phan@redhat.com> | 2011-07-18 11:13:14 +0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-07-22 08:59:26 -0300 |
| commit | 4f9bae351d299149a84f76cd34bf0150614e8c8e (patch) | |
| tree | 342086b25b25b3074cf3d91b2568957b5baf668d /tools/perf/builtin-list.c | |
| parent | 7fcfd1abd6480d3b9ef17f5759c175e036e835cf (diff) | |
| download | blackbird-op-linux-4f9bae351d299149a84f76cd34bf0150614e8c8e.tar.gz blackbird-op-linux-4f9bae351d299149a84f76cd34bf0150614e8c8e.zip | |
perf buildid-cache: Zero out buffer of filenames when adding/removing buildid
The readlink() function doesn't append a null byte to buf. So we should
zero out buf with zalloc(). Or we'll see sometimes error like this:
[root@intel-s3e36-01]~# /usr/bin/perf buildid-cache -a /lib/modules/2.6.32-130.el6.x86_64/kernel/crypto/twofish_common.ko -v
Adding f64ba8efd5f53c7ad332fc17db1d21de309038e1 /lib/modules/2.6.32-130.el6.x86_64/kernel/crypto/twofish_common.ko: Ok
[root@intel-s3e36-01]~# /usr/bin/perf buildid-cache -r /lib/modules/2.6.32-130.el6.x86_64/kernel/crypto/twofish_common.ko -v
Removing f64ba8efd5f53c7ad332fc17db1d21de309038e1 /lib/modules/2.6.32-130.el6.x86_64/kernel/crypto/twofish_common.ko: FAIL
/lib/modules/2.6.32-130.el6.x86_64/kernel/crypto/twofish_common.ko wasn't in the cache
The change in build_id_cache__add_s() is a defense.
Tested-by: Jiri Olsa <jolsa@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20110718031314.GA5802@hpt.nay.redhat.com
Signed-off-by: Han Pingtian <phan@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-list.c')
0 files changed, 0 insertions, 0 deletions
