From nobody Sat Feb 7 19:46:02 2026 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 66A29C88CB6 for ; Tue, 13 Jun 2023 07:27:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238008AbjFMH1T (ORCPT ); Tue, 13 Jun 2023 03:27:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59044 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238813AbjFMH0v (ORCPT ); Tue, 13 Jun 2023 03:26:51 -0400 Received: from mail-pl1-x62c.google.com (mail-pl1-x62c.google.com [IPv6:2607:f8b0:4864:20::62c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C6F7EAA for ; Tue, 13 Jun 2023 00:26:50 -0700 (PDT) Received: by mail-pl1-x62c.google.com with SMTP id d9443c01a7336-1b3ce6607cbso16667165ad.2 for ; Tue, 13 Jun 2023 00:26:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; t=1686641210; x=1689233210; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=XCTKwSM7nGfTgkpcwxuzbHKvrUHLJBGdS4r/wN5pXSo=; b=LiWdB17E+jMG963EaRHIWlzJpAIjHvEvA6bk4BXb1N4r3YKPeO+SP2mkQPkR4PCnaz B6lk/eSWsSCcR7gIE0oL4Ngx0J5MrheuIJ1xyaQslocVd5ouF+kzNKZexYWLSd6q9J68 F5zIYtwYDGwrxB3ONyRFmJeIk7hWu3hzwrP3WffN7Dm4NOOeA3sNh9hjiGq2XOxmPFar ox0DLtxWHQDYLJFpcwamhFWtbh5XvtJQw9eiLbNyCcnrWLcQ4czn/Igkn9AmyAdnGzrR 4zNKIN8CJi7WJykqGqKHN5z9UxsgzEboK4ErLZYhiQSQbYBrU7Gq53w84BCT0soat3tP iYjA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686641210; x=1689233210; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=XCTKwSM7nGfTgkpcwxuzbHKvrUHLJBGdS4r/wN5pXSo=; b=KUsaZ/aqJ3pdPrQnAnGEEBqwhkF6BuK0Ca8zRKcVzGLjiEZ36zJret9ye9jk8Neax9 +oTPwVQHFbnmOm+UNhsdPcM5KYmq6VAmdos3/f/d+Zwi84MLTgTlq9JGMpPPHgaqnINd sV0H+k7S/A3QsyrVnlXUjZBQrnY7p3T35AJXMu4kKGr8w2Zk0Eo/TkomP07VImwLZh0g xswEFI6e6veKlHvi0htPGrMKxBd6OEwWR5H0m/Wks6NwxLhqSBaDcTIk4P4+giv9X3s+ +6Gq+ja/SmFcuLnVpKmdSIozfJC/9C6M2/DI7d5n6CnKPamaA+XM+woFV+XSYSte0iM3 pK5w== X-Gm-Message-State: AC+VfDz1KPErOQKlkie3009LdEROgTzsRw4GvEeFYq4ZOpvxqixPnGv1 IIfwm1hi+Lmvy7mHxcgT1j8N87zH3d4UFpbY8oEdjnoElF00O6T0XNLTbjwu9sCBZ+bZqdmDqE5 4MJ+4lg1sAY1WFh9EaaKrvn2anUZkGwlSmHXUXh+uuFgY4C9kZtWESdCzQ6oPWZdLABvIXtMMf6 Cu8v44PLNwhw== X-Google-Smtp-Source: ACHHUZ7/bXnQVjLPpiyc3uSEjDr+FSZ/NtFlYA34O9DkwBHezk4wWVKKyVZtaCb/wBtFIl1nnjSLDQ== X-Received: by 2002:a17:902:708a:b0:1b2:fa8:d9c9 with SMTP id z10-20020a170902708a00b001b20fa8d9c9mr8467088plk.49.1686641210024; Tue, 13 Jun 2023 00:26:50 -0700 (PDT) Received: from hsinchu15.internal.sifive.com (59-124-168-89.hinet-ip.hinet.net. [59.124.168.89]) by smtp.gmail.com with ESMTPSA id h4-20020a170902748400b001ab0d815dbbsm9446677pll.23.2023.06.13.00.26.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 13 Jun 2023 00:26:49 -0700 (PDT) From: Nylon Chen To: linux-kernel@vger.kernel.org Cc: linux-riscv@lists.infradead.org, jszhang@kernel.org, conor.dooley@microchip.com, ajones@ventanamicro.com, aou@eecs.berkeley.edu, palmer@dabbelt.com, paul.walmsley@sifive.com, greentime.hu@sifive.com, zong.li@sifive.com, nylon7717@gmail.com, Nylon Chen Subject: [PATCH] RISC-V: Support 32_PCREL relocation type in kernel module Date: Tue, 13 Jun 2023 15:26:44 +0800 Message-Id: <20230613072644.10487-1-nylon.chen@sifive.com> X-Mailer: git-send-email 2.40.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Signed-off-by: Nylon Chen --- arch/riscv/kernel/module.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/riscv/kernel/module.c b/arch/riscv/kernel/module.c index 7c651d55fcbd..f52d8e3d4b63 100644 --- a/arch/riscv/kernel/module.c +++ b/arch/riscv/kernel/module.c @@ -310,6 +310,15 @@ static int apply_r_riscv_sub64_rela(struct module *me,= u32 *location, return 0; } =20 +static int apply_r_riscv_pcrel_32_rela(struct module *me, u32 *location, + Elf_Addr v) +{ + ptrdiff_t offset =3D (void *)v - (void *)location; + + *location =3D (*location & 0xffff0000) | (offset & 0xffff); + return 0; +} + static int (*reloc_handlers_rela[]) (struct module *me, u32 *location, Elf_Addr v) =3D { [R_RISCV_32] =3D apply_r_riscv_32_rela, @@ -335,6 +344,7 @@ static int (*reloc_handlers_rela[]) (struct module *me,= u32 *location, [R_RISCV_SUB16] =3D apply_r_riscv_sub16_rela, [R_RISCV_SUB32] =3D apply_r_riscv_sub32_rela, [R_RISCV_SUB64] =3D apply_r_riscv_sub64_rela, + [R_RISCV_32_PCREL] =3D apply_r_riscv_pcrel_32_rela, }; =20 int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab, --=20 2.40.1