gcc-7.1.1-1.fc27.x86_64

/home/jkratoch/redhat/fedora/libipt/master/processor-trace-1.6.1/libipt/src/pt_block_decoder.c: In function ‘pt_blk_proceed_no_event_cached’:

/home/jkratoch/redhat/fedora/libipt/master/processor-trace-1.6.1/libipt/src/pt_block_decoder.c:2282:6: error: this statement may fall through [-Werror=implicit-fallthrough=]

   if (bce.isize) {

      ^

/home/jkratoch/redhat/fedora/libipt/master/processor-trace-1.6.1/libipt/src/pt_block_decoder.c:2328:2: note: here

  case ptbq_decode: {

  ^~~~

diff --git a/libipt/src/pt_block_decoder.c b/libipt/src/pt_block_decoder.c

index 21783a6..91d5bb3 100644

--- a/libipt/src/pt_block_decoder.c

+++ b/libipt/src/pt_block_decoder.c

@@ -2095,6 +2095,9 @@ static int pt_blk_proceed_no_event_cached(struct pt_block_decoder *decoder,

 		}

 		/* Fall through to ptbq_decode. */

+#if __GNUC__ >= 7

+		__attribute__ ((fallthrough));

+#endif

 	case ptbq_decode: {

 		struct pt_insn_ext iext;