Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934064Ab3GRTvS (ORCPT ); Thu, 18 Jul 2013 15:51:18 -0400 Received: from merlin.infradead.org ([205.233.59.134]:41755 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759524Ab3GRTuk (ORCPT ); Thu, 18 Jul 2013 15:50:40 -0400 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Jiri Olsa , Andi Kleen , Corey Ashford , David Ahern , Frederic Weisbecker , Ingo Molnar , Namhyung Kim , Paul Mackerras , Peter Zijlstra , Arnaldo Carvalho de Melo Subject: [PATCH 75/76] perf header: Introduce feat_offset into perf_header Date: Thu, 18 Jul 2013 16:50:02 -0300 Message-Id: <1374177003-3706-76-git-send-email-acme@infradead.org> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1374177003-3706-1-git-send-email-acme@infradead.org> References: <1374177003-3706-1-git-send-email-acme@infradead.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by merlin.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 Content-Length: 2726 Lines: 79 From: Jiri Olsa Introducing feat_offset into perf_header to make the location of the features section clear. Signed-off-by: Jiri Olsa Cc: Andi Kleen Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1374083403-14591-5-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/header.c | 6 ++++-- tools/perf/util/header.h | 1 + 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index dcba56a..eefb052 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -2225,7 +2225,7 @@ static int perf_header__adds_write(struct perf_header *header, sec_size = sizeof(*feat_sec) * nr_sections; - sec_start = header->data_offset + header->data_size; + sec_start = header->feat_offset; lseek(fd, sec_start + sec_size, SEEK_SET); for_each_set_bit(feat, header->adds_features, HEADER_FEAT_BITS) { @@ -2304,6 +2304,7 @@ int perf_session__write_header(struct perf_session *session, } header->data_offset = lseek(fd, 0, SEEK_CUR); + header->feat_offset = header->data_offset + header->data_size; if (at_exit) { err = perf_header__adds_write(header, evlist, fd); @@ -2373,7 +2374,7 @@ int perf_header__process_sections(struct perf_header *header, int fd, sec_size = sizeof(*feat_sec) * nr_sections; - lseek(fd, header->data_offset + header->data_size, SEEK_SET); + lseek(fd, header->feat_offset, SEEK_SET); err = perf_header__getbuffer64(header, fd, feat_sec, sec_size); if (err < 0) @@ -2572,6 +2573,7 @@ int perf_file_header__read(struct perf_file_header *header, ph->data_offset = header->data.offset; ph->data_size = header->data.size; + ph->feat_offset = header->data.offset + header->data.size; return 0; } diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h index 6fa80f9..e6387dc 100644 --- a/tools/perf/util/header.h +++ b/tools/perf/util/header.h @@ -88,6 +88,7 @@ struct perf_header { bool needs_swap; u64 data_offset; u64 data_size; + u64 feat_offset; DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); struct perf_session_env env; }; -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/