From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756756AbbDJVlo (ORCPT ); Fri, 10 Apr 2015 17:41:44 -0400 Received: from mail.kernel.org ([198.145.29.136]:36754 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756632AbbDJVkb (ORCPT ); Fri, 10 Apr 2015 17:40:31 -0400 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, David Ahern , Namhyung Kim , Arnaldo Carvalho de Melo Subject: [PATCH 3/7] perf tools: Fix cross-endian analysis Date: Fri, 10 Apr 2015 18:40:13 -0300 Message-Id: <1428702017-19224-4-git-send-email-acme@kernel.org> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1428702017-19224-1-git-send-email-acme@kernel.org> References: <1428702017-19224-1-git-send-email-acme@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: David Ahern Trying to analyze a big endian data file on little endian system fails with the error: 0xa9b40 [0x70]: failed to process type: 9 The problem is that header parsing is not done correctly because the file attributes are not swapped. Make it so. With this patch able to analyze a sparc64 data file on x86_64. Signed-off-by: David Ahern Acked-by: Jiri Olsa Cc: Namhyung Kim Link: http://lkml.kernel.org/r/1428610546-178789-1-git-send-email-david.ahern@oracle.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/header.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index fff3b2a455ae..918fd8ae2d80 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -2504,8 +2504,11 @@ int perf_session__read_header(struct perf_session *session) if (read_attr(fd, header, &f_attr) < 0) goto out_errno; - if (header->needs_swap) + if (header->needs_swap) { + f_attr.ids.size = bswap_64(f_attr.ids.size); + f_attr.ids.offset = bswap_64(f_attr.ids.offset); perf_event__attr_swap(&f_attr.attr); + } tmp = lseek(fd, 0, SEEK_CUR); evsel = perf_evsel__new(&f_attr.attr); -- 1.9.3