Merge tag 'perf-core-for-mingo-20160929' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

User visible changes:
---------------------

New features:

- Add support for using symbols in address filters with Intel PT and ARM
  CoreSight (hardware assisted tracing facilities) (Adrian Hunter, Mathieu Poirier)

Fixes:

- Fix MMAP event synthesis for pre-existing threads when no hugetlbfs
  mount is in place (Adrian Hunter)

- Don't ignore kernel idle symbols in 'perf script' (Adrian Hunter)

- Assorted Intel PT fixes (Adrian Hunter)

Improvements:

- Fix handling of C++ symbols in 'perf probe' (Masami Hiramatsu)

- Beautify sched_[gs]et_attr return value in 'perf trace' (Arnaldo Carvalho de Melo)

Infrastructure changes:
-----------------------

New features:

- Add dwarf unwind 'perf test' for powerpc (Ravi Bangoria)

Fixes:

- Fix error paths in 'perf record' (Adrian Hunter)

Documentation:

- Update documentation info about quipper, a C++ parser for converting
  to/from perf.data/chromium profiling format (Simon Que)

Build Fixes:

  Fix building in 32 bit platform with libbabeltrace (Wang Nan)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 7 insertions, 3 deletions

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index bc60ce49720b..fcfbef07b92d 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -213,9 +213,13 @@ static int convert_exec_to_group(const char *exec, char **result)
 		goto out;
 	}
 
-	ptr2 = strpbrk(ptr1, "-._");
-	if (ptr2)
-		*ptr2 = '\0';
+	for (ptr2 = ptr1; ptr2 != '\0'; ptr2++) {
+		if (!isalnum(*ptr2) && *ptr2 != '_') {
+			*ptr2 = '\0';
+			break;
+		}
+	}
+
 	ret = e_snprintf(buf, 64, "%s_%s", PERFPROBE_GROUP, ptr1);
 	if (ret < 0)
 		goto out;