From cb9dddf031b4b224568caf1ad78c08fc62afd59b Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Fri, 1 May 2009 12:23:18 +0200 Subject: [PATCH] perf_counter: tool: handle 0-length data files Avoid perf-report barfing on 0-length data files. [ Impact: fix perf-report SIGBUS ] Signed-off-by: Peter Zijlstra Cc: Paul Mackerras Cc: Corey Ashford LKML-Reference: <20090501102533.196245693@chello.nl> Signed-off-by: Ingo Molnar --- Documentation/perf_counter/perf-report.cc | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/perf_counter/perf-report.cc b/Documentation/perf_counter/perf-report.cc index 933a07544534a..911d7f3e7a65c 100644 --- a/Documentation/perf_counter/perf-report.cc +++ b/Documentation/perf_counter/perf-report.cc @@ -402,6 +402,11 @@ int main(int argc, char *argv[]) exit(-1); } + if (!stat.st_size) { + fprintf(stderr, "zero-sized file, nothing to do!\n"); + exit(0); + } + load_kallsyms(); remap: -- 2.39.5