From: Adrian Hunter <[email protected]> The message does not indicate the possibility that the symbol is not found because the file does not exist.
Before: $ perf record -e intel_pt//u --filter 'filter strcmp / strcpy @ foo ' ls Symbol 'strcmp' not found. Note that symbols must be functions. Failed to parse address filter: 'filter strcmp / strcpy @ foo ' Filter format is: filter|start|stop|tracestop <start symbol or address> [/ <end symbol or size>] [@<file name>] Where multiple filters are separated by space or comma. After: $ perf record -e intel_pt//u --filter 'filter strcmp / strcpy @ foo ' ls File 'foo' not found or has no symbols. Symbol 'strcmp' not found. Note that symbols must be functions. Failed to parse address filter: 'filter strcmp / strcpy @ foo ' Filter format is: filter|start|stop|tracestop <start symbol or address> [/ <end symbol or size>] [@<file name>] Where multiple filters are separated by space or comma. Reported-by: Alexander Shishkin <[email protected]> Signed-off-by: Adrian Hunter <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Jiri Olsa <[email protected]> Link: https://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/util/auxtrace.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c index 267e54df511b..fb76b6b232d4 100644 --- a/tools/perf/util/auxtrace.c +++ b/tools/perf/util/auxtrace.c @@ -1918,7 +1918,8 @@ static struct dso *load_dso(const char *name) if (!map) return NULL; - map__load(map); + if (map__load(map) < 0) + pr_err("File '%s' not found or has no symbols.\n", name); dso = dso__get(map->dso); -- 2.20.1
