On Wed, 2011-03-02 at 16:53 +0800, Han Pingtian wrote:
> On Wed, Mar 02, 2011 at 04:29:41PM +0800, Lin Ming wrote:
> > >
> > > root@intel-s3e36-01 perf]# ./perf-archive
> > > tar: .build-id/b2/370e39ea2898c6e11c188e2f3879e4e3d6d1ef: Cannot stat:
> > > No such file or directory
> > > tar: .build-id/b2/370e39ea2898c6e11c188e2f3879e4e3d6d1ef: Cannot stat:
> > > No such file or directory
> > > tar: Exiting with failure status due to previous errors
> >
> > kernel.kallsyms is not created successfully in the buildid-cache.
> > Could you have a try below patch?
> >
> > diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
> > index 72c124d..d3b5062 100644
> > --- a/tools/perf/util/header.c
> > +++ b/tools/perf/util/header.c
> > @@ -271,11 +271,16 @@ int build_id_cache__add_s(const char *sbuild_id,
> > const char *debugdir,
> > const char *name, bool is_kallsyms)
> > {
> > const size_t size = PATH_MAX;
> > - char *realname = realpath(name, NULL),
> > + char *realname,
> > *filename = malloc(size),
> > *linkname = malloc(size), *targetname;
> > int len, err = -1;
> >
> > + if (is_kallsyms)
> > + realname = (char *)name;
> > + else
> > + realname = realpath(name, NULL);
> > +
> > if (realname == NULL || filename == NULL || linkname == NULL)
> > goto out_free;
> >
> > @@ -307,7 +312,8 @@ int build_id_cache__add_s(const char *sbuild_id, const
> > char *debugdir,
> > if (symlink(targetname, linkname) == 0)
> > err = 0;
> > out_free:
> > - free(realname);
> > + if (!is_kallsyms)
> > + free(realname);
> > free(filename);
> > free(linkname);
> > return err;
> >
> The patch didn't fix this problem.
Did you re-run perf command?
Need to re-run it to generate kernel.kallsyms build-id cache.
For example,
$ perf record -- sleep 3
$ perf-archive
If the problem is still there, please attach below output:
$ tree ~/.debug
Thanks,
Lin Ming
> >
> > > Now please run:
> > >
> > > $ tar xvf perf.data.tar.bz2 -C ~/.debug
> > >
> > > wherever you need to run 'perf report' on.
> > > [root@intel-s3e36-01 perf]# ./perf --version
> > > perf version 2.6.38.rc6.166.g493f33
> > > [root@intel-s3e36-01 perf]# ./perf buildid-list
> > > b2370e39ea2898c6e11c188e2f3879e4e3d6d1ef [kernel.kallsyms]
> > > dd95cb496ebc4ed922eeb5640965f1243fcfcd9a
> > > /lib/modules/2.6.32-118.el6.x86_64/kernel/fs/ext4/ext4.ko
> > > 9e1aca88b83308cec7574d74975fa6f7d654c96e /lib64/libc-2.12.so
> > > d880be15bf992b5fbcc629e6bbf1c747a928ddd5 /lib64/libglib-2.0.so.0.2200.5
> > > d1b2ca4e1ec8f81ba820e5f1375d960107ac7e50 /usr/lib64/libstdc++.so.6.0.13
> > > [root@intel-s3e36-01 perf]#
> > >
> > > --
> > > Han Pingtian
> > > Quality Engineer
> > > hpt @ #kernel-qe
> > > Red Hat, Inc
> > > Freedom ... courage ... Commitment ... ACCOUNTABILITY
> > > --
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> >
>
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