From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 00D7FC54FCC for ; Tue, 21 Apr 2020 18:07:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C3CF5206D5 for ; Tue, 21 Apr 2020 18:07:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="hucnDYjY" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726628AbgDUSHf (ORCPT ); Tue, 21 Apr 2020 14:07:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54182 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725870AbgDUSHe (ORCPT ); Tue, 21 Apr 2020 14:07:34 -0400 Received: from mail-pj1-x104a.google.com (mail-pj1-x104a.google.com [IPv6:2607:f8b0:4864:20::104a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B76D5C0610D5 for ; Tue, 21 Apr 2020 11:07:32 -0700 (PDT) Received: by mail-pj1-x104a.google.com with SMTP id l9so3848857pjq.8 for ; Tue, 21 Apr 2020 11:07:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:message-id:mime-version:subject:from:to:cc; bh=kEBaA/Sh9DZjU6rhJczeK9hcyL832LNh924kuJMa3Eg=; b=hucnDYjYLCsHVrzEZqVw+IzJqJfansfvfknmCGCfCUfqXARxTZZWgCxhy4beLvPT2e 8xm0Z0ELOpVxfg0eFVgqxaFsTYusfQH25XzgLCuJqw8DZuAvCH5v/qm4cJUBk4kTjTYI GNbMEbw3VInkcdPCzDWUsydKPlYzAPDYANe6p2SmQAbDWBP1MDz6Re0JuMHvtWX0siVa CUwr1FxtrSCFAd5Gq/ciglKKeqTOF5ClEmznW5Etfccq+cB32mh9CsDTQ/XP8QTLsQxe NB1UuiJrsVNSeQVB3oR+MfwNEVEW3Jgl83QDY9DWQzDAApNc/AvSXTAcSJNyCI92HEb4 pWCQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:message-id:mime-version:subject:from:to:cc; bh=kEBaA/Sh9DZjU6rhJczeK9hcyL832LNh924kuJMa3Eg=; b=ErZj5GhGRj1UwJukchOR0daiJNpRTb23pdH98UbW1JSXhGNgpIc8XvuASKPTZyhu5G SjSnAMIduhyRHOl6fkuhtpfXeNMciqewfL4GsM1C+tdvXw/KEhE1Yfj4faqa42yrmibM TZYU9ICwERhmbV3QGKooIdr+kqP1MpRAC6fBR8wb25b8xbLPSJF6xzfj4zI0TkyKFQsd u2qGPSCykVS1LdpTm91SEcAtHVFCrr/FOsxWyQd16pO3Z2zf/lDWGIv6ull5UQ6d6dmm oPG8dbAXsD3WMRzsiKXdfQOEnU0Z+Lu/V0C7pockB2J2iE3IEUjuleUMZsOunl1V6vXI o22g== X-Gm-Message-State: AGi0Pub+iNQvbTpcb+CwDz9Ir88BSX1w2z8hSK6ChIS/NIYrz8psf9AD 6Q6uhkSdpGuHBYP/rEiWPzOkayAkDTexrnAZPok= X-Google-Smtp-Source: APiQypJxrzgIk0NV3dowQVMZzYqYkacdn1aJomcM8WofRQIRFuZ7K54v4I/3jwWQj+42J2HhAJ1tOzkGq9g3LurCm80= X-Received: by 2002:a17:90a:315:: with SMTP id 21mr6452651pje.96.1587492450843; Tue, 21 Apr 2020 11:07:30 -0700 (PDT) Date: Tue, 21 Apr 2020 11:07:21 -0700 Message-Id: <20200421180724.245410-1-samitolvanen@google.com> Mime-Version: 1.0 X-Mailer: git-send-email 2.26.1.301.g55bc3eb7cb9-goog Subject: [PATCH 0/3] objtool: add support for >64k sections From: Sami Tolvanen To: Josh Poimboeuf , Peter Zijlstra Cc: Kees Cook , linux-kernel@vger.kernel.org, Sami Tolvanen Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series fixes objtool for binaries with >64k sections, and includes optimizations to reduce the runtime for a binary with ~130k sections from >15 minutes to ~4 seconds. Sami Tolvanen (3): objtool: use gelf_getsymshndx to handle >64k sections objtool: optimize insn_hash for split sections objtool: optimize add_dead_ends for split sections tools/objtool/check.c | 48 ++++++++++++++++++++++++++----------------- tools/objtool/check.h | 9 ++++++++ tools/objtool/elf.c | 24 +++++++++++++++------- tools/objtool/elf.h | 1 + 4 files changed, 56 insertions(+), 26 deletions(-) base-commit: ae83d0b416db002fe95601e7f97f64b59514d936 -- 2.26.1.301.g55bc3eb7cb9-goog