perf probe: Fix to die_entrypc() returns error correctly
authorMasami Hiramatsu <mhiramat@kernel.org>
Fri, 27 Nov 2020 05:48:46 +0000 (14:48 +0900)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Fri, 27 Nov 2020 17:33:17 +0000 (14:33 -0300)
commitab4200c17ba6fe71d2da64317aae8a8aa684624c
tree1d6bafbb6aad7604927d5eca6c1c9b323b2ac6a9
parentc0ee1d5ae8c8650031badcfca6483a28c0f94f38
perf probe: Fix to die_entrypc() returns error correctly

Fix die_entrypc() to return error correctly if the DIE has no
DW_AT_ranges attribute. Since dwarf_ranges() will treat the case as an
empty ranges and return 0, we have to check it by ourselves.

Fixes: 91e2f539eeda ("perf probe: Fix to show function entry line as probe-able")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: http://lore.kernel.org/lkml/160645612634.2824037.5284932731175079426.stgit@devnote2
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/dwarf-aux.c