From patchwork Wed Jun 30 00:38:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Edelsohn X-Patchwork-Id: 1498698 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org (client-ip=8.43.85.97; helo=sourceware.org; envelope-from=gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org header.a=rsa-sha256 header.s=default header.b=uh0Fwt3/; dkim-atps=neutral Received: from sourceware.org (server2.sourceware.org [8.43.85.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4GF2Xg2L1Bz9s24 for ; Wed, 30 Jun 2021 10:39:13 +1000 (AEST) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id C0911384F005 for ; Wed, 30 Jun 2021 00:39:09 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C0911384F005 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1625013549; bh=sMUx5VriVbeGXAyNZNhpTGnRdT1mK2k1ld5JNgaMkZE=; h=Date:Subject:To:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:From; b=uh0Fwt3/a0cQSWR1NoiqQKKCpxQP+ZgXyAqXnw14lWPzk6s/kbirJOTeNafMdbwbx 0fRzJO5U+x918t04DsCa9Du/W/CnoxulTE5DdYA/UzKVA9yfBnW+vP2tkdGnnOAJac WbJzT6T3+GTJqhDJRulIzoaDGAVKcdBAMX23Ks+0= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from mail-lf1-x131.google.com (mail-lf1-x131.google.com [IPv6:2a00:1450:4864:20::131]) by sourceware.org (Postfix) with ESMTPS id 399D73858010 for ; Wed, 30 Jun 2021 00:38:26 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 399D73858010 Received: by mail-lf1-x131.google.com with SMTP id a18so1660108lfs.10 for ; Tue, 29 Jun 2021 17:38:26 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=sMUx5VriVbeGXAyNZNhpTGnRdT1mK2k1ld5JNgaMkZE=; b=XXtxjqNSlRWJtS/Iw/JDFFnvDBqyR5VH4L84yimy4NWEWMdWS+oTFtxiAexvSx03Sx A6MDXmEDXZp/c/Epn3L5RRyuStSmtCB7qJOJhupNnCOSuNBuoYx1IJa6ol889BOz17NS 1OMXEON6b25gqDhur/MOtuK/BVcBTx8pWlJFzuVcrb3Kktc1sSiJlVoXuqWN7d6OwBnh cZuoHgt+FbzY4cmToPReABw3uYZ5h5fUQ+uxHH+NHM8mT+tltlqYA34epHxCggf9ZRuk 1C6ueKpanA6QIvuoPZSuJryREJ3ohkYeD+sXHtfiRZI/39nr0IWybVy9rNU8f1J4sNkD F+3Q== X-Gm-Message-State: AOAM531puxNo2M5mPKmBdSypyihsxI2cWg6kn5o8K5WDfXuIBxePdMvY 9h/qSheECkC6zHfUfNruZ0ivQM32Zu0NWbXyyGa8hDbLcq8szg== X-Google-Smtp-Source: ABdhPJxF90AU/8KAo65aPgPxccBV79Pcc20p1VlO8xNNIhqwQJKRTY6iTw1reZ2WjYcSXeSx15ZWB+ckPAhwZmFRgWs= X-Received: by 2002:a19:6907:: with SMTP id e7mr25671635lfc.660.1625013504343; Tue, 29 Jun 2021 17:38:24 -0700 (PDT) MIME-Version: 1.0 Date: Tue, 29 Jun 2021 20:38:13 -0400 Message-ID: Subject: [PATCH] AIX code CSECT alignment To: GCC Patches X-Spam-Status: No, score=-7.8 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: David Edelsohn via Gcc-patches From: David Edelsohn Reply-To: David Edelsohn Errors-To: gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org Sender: "Gcc-patches" aix: align text CSECTs to at least 32 bytes. Bootstrapped on powerpc-ibm-aix7.2.3.0. Thanks, David gcc/ChangeLog: * config/rs6000/rs6000.c (rs6000_xcoff_section_type_flags): Increase code CSECT alignment to at least 32 bytes. * config/rs6000/xcoff.h (TEXT_SECTION_ASM_OP): Add 32 byte alignment designation. diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 2c249e186e1..075c156ae13 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-3.0-or-later /* Subroutines used for code generation on IBM RS/6000. Copyright (C) 1991-2021 Free Software Foundation, Inc. Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu) @@ -21361,8 +21362,11 @@ rs6000_xcoff_section_type_flags (tree decl, const char *name, int reloc) flags |= SECTION_BSS; /* Align to at least UNIT size. */ - if ((flags & SECTION_CODE) != 0 || !decl || !DECL_P (decl)) + if (!decl || !DECL_P (decl)) align = MIN_UNITS_PER_WORD; + /* Align code CSECT to at least 32 bytes. */ + else if ((flags & SECTION_CODE) != 0) + align = MAX ((DECL_ALIGN (decl) / BITS_PER_UNIT), 32); else /* Increase alignment of large objects if not already stricter. */ align = MAX ((DECL_ALIGN (decl) / BITS_PER_UNIT), diff --git a/gcc/config/rs6000/xcoff.h b/gcc/config/rs6000/xcoff.h index 5ba565f63bb..f3546fadf33 100644 --- a/gcc/config/rs6000/xcoff.h +++ b/gcc/config/rs6000/xcoff.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-3.0-or-later /* Definitions of target machine for GNU compiler, for some generic XCOFF file format Copyright (C) 2001-2021 Free Software Foundation, Inc. @@ -249,7 +250,7 @@ #define DOUBLE_INT_ASM_OP "\t.llong\t" /* Output before instructions. */ -#define TEXT_SECTION_ASM_OP "\t.csect .text[PR]" +#define TEXT_SECTION_ASM_OP "\t.csect .text[PR],5" /* Output before writable data. */ #define DATA_SECTION_ASM_OP \