forge/linux-pinenote
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

perf symbols: Add the build id cache to the vmlinux path

Browse source 
So that if the kernel DSO has a build id because record inserted it in
the perf.data build id table in the header, or a BUILD_ID event was
inserted in the stream, we first look at the build id cache
($HOME/.debug/).

If we find it there, try to use it, allowing offline annotation in
addition to 'perf report'.

Reported-by: Stephane Eranian <eranian@google.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2010-05-26 13:26:02 -03:00
parent 62e3436b5f
commit 5ad90e4ea4
3 changed files with 25 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

2
tools/perf/builtin-top.c
View file

@ -1060,7 +1060,7 @@ static void event__process_sample(const event_t *self,
pr_err("Can't annotate %s", sym->name);
if (sym_filter_entry->map->dso->origin == DSO__ORIG_KERNEL) {
pr_err(": No vmlinux file was found in the path:\n");
vmlinux_path__fprintf(stderr);
machine__fprintf_vmlinux_path(machine, stderr);
} else
pr_err(".\n");
exit(1);