From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932492AbcCJVFW (ORCPT ); Thu, 10 Mar 2016 16:05:22 -0500 Received: from bombadil.infradead.org ([198.137.202.9]:42802 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932400AbcCJVFL (ORCPT ); Thu, 10 Mar 2016 16:05:11 -0500 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Steven Rostedt , Andi Kleen , Jiri Olsa , Namhyung Kim , Peter Zijlstra , Stephane Eranian , Wang Nan , Arnaldo Carvalho de Melo Subject: [PATCH 05/19] tools lib traceevent: Add '~' operation within arg_num_eval() Date: Thu, 10 Mar 2016 18:04:26 -0300 Message-Id: <1457643880-4908-6-git-send-email-acme@kernel.org> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1457643880-4908-1-git-send-email-acme@kernel.org> References: <1457643880-4908-1-git-send-email-acme@kernel.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Steven Rostedt When evaluating values for print flags, if the value included a '~' operator, the parsing would fail. This broke kmalloc's parsing of: __print_flags(REC->gfp_flags, "|", {(unsigned long)((((((( gfp_t)(0x400000u|0x2000000u)) | (( gfp_t)0x40u) | (( gfp_t)0x80u) | (( gfp_t)0x20000u)) | (( gfp_t)0x02u)) | (( gfp_t)0x08u)) | (( gfp_t)0x4000u) | (( gfp_t)0x10000u) | (( gfp_t)0x1000u) | (( gfp_t)0x200u)) & ~(( gfp_t)0x2000000u)) ^ | here Signed-off-by: Steven Rostedt Reported-by: Arnaldo Carvalho de Melo Tested-by: David Ahern Cc: Andi Kleen Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Wang Nan Link: http://lkml.kernel.org/r/20160226181328.22f47129@gandalf.local.home Signed-off-by: Arnaldo Carvalho de Melo --- tools/lib/traceevent/event-parse.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index 865dea55454b..190cc886ab91 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -2398,6 +2398,12 @@ static int arg_num_eval(struct print_arg *arg, long long *val) break; *val = left + right; break; + case '~': + ret = arg_num_eval(arg->op.right, &right); + if (!ret) + break; + *val = ~right; + break; default: do_warning("unknown op '%s'", arg->op.op); ret = 0; -- 2.5.0