Re: [PATCHSET 0/8] perf tools: Fix scalability problem on callchainmerging (v5)

[David Ahern]

On 10/11/13 9:11 AM, David Ahern wrote:
> It would be nice to fix the callchain arg handler to not attempt to
> process the next argument if it is not fp or dwarf.

Specifically, something like this which maintains syntax and default fp 
option:

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 92ca541..23d782c 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -766,8 +766,8 @@ int record_parse_callchain_opt(const struct option *opt,
                     opts->stack_dump_size);
 #endif /* HAVE_LIBUNWIND_SUPPORT */
        } else {
-           pr_err("callchain: Unknown -g option "
-                  "value: %s\n", arg);
+           opts->call_graph = CALLCHAIN_FP;
+           ret = 0;
            break;
        }


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