On Tue, 2014-12-09 at 23:04 +0530, Naveen N. Rao wrote:
> Allow perf probe to work on powerpc ABIv1 without the need to specify the
> leading dot '.' for functions. 'perf probe do_fork' works with this patch.
>
> Signed-off-by: Naveen N. Rao <naveen.n....@linux.vnet.ibm.com>
> ---
> tools/perf/util/probe-event.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
> index d465f7c..174c22e 100644
> --- a/tools/perf/util/probe-event.c
> +++ b/tools/perf/util/probe-event.c
> @@ -2221,6 +2221,15 @@ static int probe_function_filter(struct map *map
> __maybe_unused,
> num_matched_functions++;
> return 0;
> }
> +#ifdef __powerpc64__
> + /* Allow matching against the dot variant */
> + if (sym->name[0] == '.' && looking_function_name[0] != '.' &&
> + (sym->binding == STB_GLOBAL || sym->binding == STB_LOCAL) &&
> + strcmp(looking_function_name, sym->name+1) == 0) {
> + num_matched_functions++;
> + return 0;
> + }
> +#endif
As for the previous patch, I think this should be in an arch helper.
cheers
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