Use rseq for cpu_id in libringbuffer

[lttng-ust.git] / libringbuffer / rseq-ppc.h

diff --git a/libringbuffer/rseq-ppc.h b/libringbuffer/rseq-ppc.h
index 6b1b13a38526629d148ea860e7c98b97452cf54f..ac3c1862e4596420e043c319edc144fb46394c1f 100644 (file)
--- a/libringbuffer/rseq-ppc.h
+++ b/libringbuffer/rseq-ppc.h
@@ -76,7 +76,7 @@
                _teardown \
                "b %l[failure]\n\t" \
                "5:\n\t" \
-               : /* no outputs */ \
+               : /* gcc asm goto does not allow outputs */ \
                : [start_event_counter]"r"((_start_value).event_counter), \
                  [current_event_counter]"m"((_start_value).rseqp->u.e.event_counter), \
                  [rseq_cs]"b"(&(_start_value).rseqp->rseq_cs) \
@@ -182,7 +182,7 @@
                _teardown \
                "b %l[failure]\n\t" \
                "5:\n\t" \
-               : /* no outputs */ \
+               : /* gcc asm goto does not allow outputs */ \
                : [start_event_counter]"r"((_start_value).event_counter), \
                  [current_event_counter]"m"((_start_value).rseqp->u.e.event_counter), \
                  [rseq_cs]"b"(&(_start_value).rseqp->rseq_cs) \