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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6C723C433F5 for ; Wed, 9 Mar 2022 22:34:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238722AbiCIWfj (ORCPT ); Wed, 9 Mar 2022 17:35:39 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37050 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232123AbiCIWff (ORCPT ); Wed, 9 Mar 2022 17:35:35 -0500 Received: from mail-pj1-x102a.google.com (mail-pj1-x102a.google.com [IPv6:2607:f8b0:4864:20::102a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 45B0D121685 for ; Wed, 9 Mar 2022 14:34:36 -0800 (PST) Received: by mail-pj1-x102a.google.com with SMTP id mr24-20020a17090b239800b001bf0a375440so6579745pjb.4 for ; Wed, 09 Mar 2022 14:34:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=tMU467rrw5B4GgqHVrBqQgG0awnkf1H4waFcw+54Qfs=; b=I3Nfwgycb/IomXQmFphimGbry58YN720G829IoBZ3KFtgIGJbl1mkVR+qlumos6Evk nJ1ucWtSqicRfT8+XA7bbxi7ZoBR8RR8RaPjgLSiem8unUdQjxDzufYMYM2HTYselFDr yGo7+UISn3B5WUqZ2qJyAs483RmGyL6i9xDCIcCsHi74Fxt5lH2I5rT6IwVlE4WOWbjl aPVJT2MIE/+6Rl5Mkf0SBLSafUX7/vEvHMLgT+8Ufm6pVSKwpqeE3e/eXur3As0mmtjv xEJSVjV9eQ0xGZ2Ah4IaIqhL4xcn7TjK/YBuHj56sUW5rKCrfdmvLoF+CyjvhxAOjaPE kwOg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=tMU467rrw5B4GgqHVrBqQgG0awnkf1H4waFcw+54Qfs=; b=mhBKOcnLUesVx2OXf0xrPeDLS+0/Zr2sMJsFxKPbcdmPZG3ovmOEyR33+/vaQGKaAB luvdoWic+i/r/WJ/JxT/S2Q/yFgeprv3qjNJ3WOQTf+4tqCBF4cllmIIikgbd/eSkYgX n0tKYvZ03iLJDotPwLOpwSGMwGasVtutXVHzMhCN9POwECbqMOT3Xj3D6z3J7X6CYmkk jQZowYPmFgXYjBwk+WQKuLyjW8ADRG1gz35746MlZDNH4ZbcoHWTorrwaAvD30fmmO0n GmrW4vNstmLj4WOVFSe7YtFFteu5IBqmiB2BAR/7oFKsLKT9IwxdwBvTTGbxsBu8ewM3 eqSg== X-Gm-Message-State: AOAM531f6evt+3RhrHvwEufUzwTN4V0Qzsf9GuO5AeA7NeUvmhjJ03XY PRE4k2nu45pua6tbheOwvIU= X-Google-Smtp-Source: ABdhPJyTzmDlvu37sHDEjGfAfT58PTS/WG2UaaLDCVitwWNLna9Da4bCA4oEN/GH666AH5H5jAcseg== X-Received: by 2002:a17:90b:2092:b0:1be:e373:2ed9 with SMTP id hb18-20020a17090b209200b001bee3732ed9mr1786157pjb.128.1646865275691; Wed, 09 Mar 2022 14:34:35 -0800 (PST) Received: from octofox.hsd1.ca.comcast.net ([2601:641:401:1d20:6f34:be93:349a:f478]) by smtp.gmail.com with ESMTPSA id e14-20020a056a001a8e00b004f75cf1ab6csm3476477pfv.206.2022.03.09.14.34.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Mar 2022 14:34:34 -0800 (PST) From: Max Filippov To: linux-xtensa@linux-xtensa.org Cc: Chris Zankel , linux-kernel@vger.kernel.org, Max Filippov Subject: [PATCH 0/2] xtensa: don't link with libgcc Date: Wed, 9 Mar 2022 14:34:16 -0800 Message-Id: <20220309223418.1253242-1-jcmvbkbc@gmail.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, this series removes xtensa kernel dependency on the libgcc by providing assembly sources for optimized compiler support functions and using generic implementations for the rest. Max Filippov (2): xtensa: add helpers for division, remainder and shifts xtensa: don't link with libgcc arch/xtensa/Kconfig | 3 + arch/xtensa/Makefile | 6 +- arch/xtensa/include/asm/asmmacro.h | 34 ++++++++ arch/xtensa/kernel/xtensa_ksyms.c | 14 --- arch/xtensa/lib/Makefile | 2 + arch/xtensa/lib/ashldi3.S | 28 ++++++ arch/xtensa/lib/ashrdi3.S | 28 ++++++ arch/xtensa/lib/divsi3.S | 74 ++++++++++++++++ arch/xtensa/lib/lshrdi3.S | 28 ++++++ arch/xtensa/lib/modsi3.S | 87 +++++++++++++++++++ arch/xtensa/lib/mulsi3.S | 133 +++++++++++++++++++++++++++++ arch/xtensa/lib/udivsi3.S | 68 +++++++++++++++ arch/xtensa/lib/umodsi3.S | 57 +++++++++++++ 13 files changed, 543 insertions(+), 19 deletions(-) create mode 100644 arch/xtensa/lib/ashldi3.S create mode 100644 arch/xtensa/lib/ashrdi3.S create mode 100644 arch/xtensa/lib/divsi3.S create mode 100644 arch/xtensa/lib/lshrdi3.S create mode 100644 arch/xtensa/lib/modsi3.S create mode 100644 arch/xtensa/lib/mulsi3.S create mode 100644 arch/xtensa/lib/udivsi3.S create mode 100644 arch/xtensa/lib/umodsi3.S -- 2.30.2