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=-10.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=ham 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 192CCC433E0 for ; Tue, 19 May 2020 16:27:20 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D5DF020756 for ; Tue, 19 May 2020 16:27:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="D0Yuj+pk"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="Mhf8scZP" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D5DF020756 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=i7+Q+Yo/mX0leOFJ0rYy8vFz5pxhcV+dPzye42LFKAA=; b=D0Yuj+pky3NYSPidLbmBhQc9iq v7onXXB4hBxDm0/nzxshQ8gfhlRV9Qh4KJfWrQQr45bkMIg/vPnQqbOWf5NsWWsZrK8bVoVALXanQ Ix8KBia2eVCGTE7uCwfvCkR5KJnsH1YvuDWc4iFDKS9XEAxkv8SMBPpv/qdk7kCBzdoJ4AumCLaMK WEgjR3nHct8TCQ5L6isNA4jT5ufDaKDAMk7xx+KPWiI+CmYjdQqCrsvJ+znJ5kyozVdwjsOuxCSRL jEYi0X+FoR4sTvdumVIHzh6GyI/td+smXkEinr6ToWKmAJ8EePKyTG/n38FyK9UAcvTqTqmZE5R2t 4S5Z9nAQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jb55L-0004F0-83; Tue, 19 May 2020 16:27:19 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jb554-000420-G8 for linux-arm-kernel@lists.infradead.org; Tue, 19 May 2020 16:27:04 +0000 Received: from e123331-lin.nice.arm.com (amontpellier-657-1-18-247.w109-210.abo.wanadoo.fr [109.210.65.247]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id CD43020823; Tue, 19 May 2020 16:26:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1589905622; bh=s1wJAwkrmgG1XjwsUm3v1xaTI0ARm6WW9gEhCur/Ryw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Mhf8scZPUYtvuTAvYm0QeYPePZdh7+Qux7I5nVnoKRYC68hXA3BXA0qAJ9dsc1p9r 9FWz0qdGsTrIN4XttXlX8Ln5odkrizRT2Qrw3dLYhZy5x3dSB1TjRGi2F3wMH4HbX+ eYqJSh29BI3rsCG/YQiRg9kmaUumjQ3a7f2MiwTU= From: Ard Biesheuvel To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v4 1/5] ARM: decompressor: move headroom variable out of LC0 Date: Tue, 19 May 2020 18:26:41 +0200 Message-Id: <20200519162645.31065-2-ardb@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200519162645.31065-1-ardb@kernel.org> References: <20200519162645.31065-1-ardb@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200519_092702_555460_6774208D X-CRM114-Status: GOOD ( 11.41 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-efi@vger.kernel.org, Geert Uytterhoeven , Nicolas Pitre , Heinrich Schuchardt , Linus Walleij , Russell King , Ard Biesheuvel MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Before breaking up LC0 into different pieces, move out the variable that is already place-relative (given that it subtracts 'restart' in the expression) and so its value does not need to be added to the runtime address of the LC0 symbol itself. Signed-off-by: Ard Biesheuvel Reviewed-by: Geert Uytterhoeven Reviewed-by: Nicolas Pitre --- arch/arm/boot/compressed/head.S | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S index cabdd8f4a248..42b8d67beab6 100644 --- a/arch/arm/boot/compressed/head.S +++ b/arch/arm/boot/compressed/head.S @@ -287,7 +287,7 @@ not_angel: */ mov r0, pc cmp r0, r4 - ldrcc r0, LC0+28 + ldrcc r0, .Lheadroom addcc r0, r0, pc cmpcc r4, r0 orrcc r4, r4, #1 @ remember we skipped cache_on @@ -664,9 +664,11 @@ LC0: .word LC0 @ r1 .word _got_start @ r11 .word _got_end @ ip .word .L_user_stack_end @ sp - .word _end - restart + 16384 + 1024*1024 .size LC0, . - LC0 +.Lheadroom: + .word _end - restart + 16384 + 1024*1024 + .Linflated_image_size_offset: .long (input_data_end - 4) - . -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel