diff options
| author | Masami Hiramatsu | 2009-11-04 01:12:30 +0100 |
|---|---|---|
| committer | Ingo Molnar | 2009-11-04 13:02:47 +0100 |
| commit | a225a1d911f0e434dc0407df29fd08e4388f3fa4 (patch) | |
| tree | d7b298174ffe1ce6d2e849aa89f9ace55e41e419 /tools/perf/util/probe-finder.c | |
| parent | perf/probes: Improve error messages (diff) | |
| download | kernel-qcow2-linux-a225a1d911f0e434dc0407df29fd08e4388f3fa4.tar.gz kernel-qcow2-linux-a225a1d911f0e434dc0407df29fd08e4388f3fa4.tar.xz kernel-qcow2-linux-a225a1d911f0e434dc0407df29fd08e4388f3fa4.zip | |
perf/probes: Fall back to non-dwarf if possible
Fall back to non-dwarf probe point if the probe definition may
not need dwarf analysis, when perf can't find vmlinux/debuginfo.
This might skip some inlined code of target function.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Jim Keniston <jkenisto@us.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: K.Prasad <prasad@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
LKML-Reference: <20091104001229.3454.63987.stgit@harusame>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/util/probe-finder.c')
| -rw-r--r-- | tools/perf/util/probe-finder.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c index 35d5a69aaf9b..293cdfc1b8ca 100644 --- a/tools/perf/util/probe-finder.c +++ b/tools/perf/util/probe-finder.c @@ -687,8 +687,10 @@ int find_probepoint(int fd, struct probe_point *pp) struct probe_finder pf = {.pp = pp}; ret = dwarf_init(fd, DW_DLC_READ, 0, 0, &__dw_debug, &__dw_error); - if (ret != DW_DLV_OK) - die("No dwarf info found in the vmlinux - please rebuild with CONFIG_DEBUG_INFO.\n"); + if (ret != DW_DLV_OK) { + pr_warning("No dwarf info found in the vmlinux - please rebuild with CONFIG_DEBUG_INFO.\n"); + return -ENOENT; + } pp->found = 0; while (++cu_number) { |