From nobody Mon Apr 6 10:45:17 2026 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 13AA839021A; Wed, 4 Mar 2026 07:49:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772610567; cv=none; b=N2+eBs5DnxrZrsBRhOrCvUmmdwhHYsstgK9RAgjvQEWMSPwr8OO2F+agA7qRA/GCzrT14RHFiG0hqe4eMl2a9V2A8xtUBq+2eJvi2ER/uqELUPp2N9b/8OdZtkPVXaaonXDhEa3TvEjkxWfe+LyWHw+bQkGhJvHwGaXon44SY9g= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772610567; c=relaxed/simple; bh=oQUOtMJuNveW+RclD59fWViVXCPJwVTHt+8MLrC6gp0=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=shxbye3fjsHZ24A4dik6jrVIiHIjsRH+vIh11eQZSwGLZHTGB6arhMtTIoNkUxYHFfFb91JM+KqYeTGb1uH6ILzcbnaZBGuhFFqFzZJSae0tVpC9ojlUDC46NoSKF6YdXA1aM48an3vGFTrDSD58pX2VTOkqiclR4OVu3u/t7MI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=ip/nm1Xq; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=Jt07OPnU; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="ip/nm1Xq"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="Jt07OPnU" From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1772610553; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Hnj7NK9+EESQajO58zJziHpx6y/buUwM86V1gnS791w=; b=ip/nm1XqyI7wcCjokpOSiXYv2n4lYU7fwSpV26RLy9siZObCvemuLW2RP4YD1tdRMAI0S8 m+pQAaNqdYQ+QygPxVgvdAGCXk+06s3gMrKpXuEh7+flyTwmqsyaD2gML2Ee/87aOwrZMe rkT21vqFiQ+eSMbBUCWSEJcvY2EtBXdR+uFvI30sCEhASj3CYKT6VwpRcNe2RjqfcoevWC 6Gy7UfRjSV5D94MjpJ7b/NaJ4APifgGovw2Hepb7xHBR+mJW15Wwj9n+xidp4akBsLGnF/ 6KJn/Nt73SmPkpUD52uMOGRcrLgn4rC4amrE3fxiLeEM1pUuTjpdlB5wVP4oFg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1772610553; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Hnj7NK9+EESQajO58zJziHpx6y/buUwM86V1gnS791w=; b=Jt07OPnU+KT/z86+XHVkhIv4Yw0F2z4/1pj2e1Zuj+DMBO/23sXm5rdimCt979Ch6i0Lum FZuSOtNue8YM41Cw== Date: Wed, 04 Mar 2026 08:49:02 +0100 Subject: [PATCH v6 05/14] sparc64: vdso: Remove obsolete "fake section table" reservation Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260304-vdso-sparc64-generic-2-v6-5-d8eb3b0e1410@linutronix.de> References: <20260304-vdso-sparc64-generic-2-v6-0-d8eb3b0e1410@linutronix.de> In-Reply-To: <20260304-vdso-sparc64-generic-2-v6-0-d8eb3b0e1410@linutronix.de> To: Andy Lutomirski , Vincenzo Frascino , Arnd Bergmann , "David S. Miller" , Andreas Larsson , Nick Alcock , John Stultz , Stephen Boyd , John Paul Adrian Glaubitz , Shuah Khan , Catalin Marinas , Will Deacon , Theodore Ts'o , "Jason A. Donenfeld" , Russell King , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Huacai Chen , WANG Xuerui , Thomas Bogendoerfer , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Shannon Nelson , Thomas Gleixner , Christophe Leroy Cc: linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linux-s390@vger.kernel.org, =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Developer-Signature: v=1; a=ed25519-sha256; t=1772610551; l=2603; i=thomas.weissschuh@linutronix.de; s=20240209; h=from:subject:message-id; bh=oQUOtMJuNveW+RclD59fWViVXCPJwVTHt+8MLrC6gp0=; b=ONjGMauf8t71olRAN5ufRU1QPoFqmeZuj0jaVTXePVPM/+6cJ1aj+IcJKK9s9JN0YdCHpDCxu e00adRtTraRBTXyKxFnAHlW8bX79J2+hczfZ7oL9CPomYAMSfq5sEXH X-Developer-Key: i=thomas.weissschuh@linutronix.de; a=ed25519; pk=pfvxvpFUDJV2h2nY0FidLUml22uGLSjByFbM6aqQQws= When the vDSO logic was copied from x86 to SPARC some unused remnants of the fake section handling were copied, too. In x86 the original fake section handling had already been removed incompletely in commit da861e18eccc ("x86, vdso: Get rid of the fake section mechanism"). On x86 the reservation was only cleaned up in commit 24b7c77bbb24 ("x86/vdso: Remove obsolete "fake section table" reservation"). Remove the reservation for SPARC, too. Fixes: 9a08862a5d2e ("vDSO for sparc") Signed-off-by: Thomas Wei=C3=9Fschuh Tested-by: Andreas Larsson Reviewed-by: Andreas Larsson Acked-by: Andreas Larsson --- arch/sparc/vdso/vdso-layout.lds.S | 21 --------------------- arch/sparc/vdso/vdso2c.c | 8 -------- 2 files changed, 29 deletions(-) diff --git a/arch/sparc/vdso/vdso-layout.lds.S b/arch/sparc/vdso/vdso-layou= t.lds.S index d31e57e8a3bb..9e0804789d11 100644 --- a/arch/sparc/vdso/vdso-layout.lds.S +++ b/arch/sparc/vdso/vdso-layout.lds.S @@ -4,16 +4,6 @@ * This script controls its layout. */ =20 -#if defined(BUILD_VDSO64) -# define SHDR_SIZE 64 -#elif defined(BUILD_VDSO32) -# define SHDR_SIZE 40 -#else -# error unknown VDSO target -#endif - -#define NUM_FAKE_SHDRS 7 - SECTIONS { /* @@ -47,19 +37,8 @@ SECTIONS *(.bss*) *(.dynbss*) *(.gnu.linkonce.b.*) - - /* - * Ideally this would live in a C file: kept in here for - * compatibility with x86-64. - */ - VDSO_FAKE_SECTION_TABLE_START =3D .; - . =3D . + NUM_FAKE_SHDRS * SHDR_SIZE; - VDSO_FAKE_SECTION_TABLE_END =3D .; } :text =20 - .fake_shstrtab : { *(.fake_shstrtab) } :text - - .note : { *(.note.*) } :text :note =20 .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr diff --git a/arch/sparc/vdso/vdso2c.c b/arch/sparc/vdso/vdso2c.c index dc81240aab6f..b97af5ec9f35 100644 --- a/arch/sparc/vdso/vdso2c.c +++ b/arch/sparc/vdso/vdso2c.c @@ -61,8 +61,6 @@ const char *outfilename; /* Symbols that we need in vdso2c. */ enum { sym_vvar_start, - sym_VDSO_FAKE_SECTION_TABLE_START, - sym_VDSO_FAKE_SECTION_TABLE_END, }; =20 struct vdso_sym { @@ -72,12 +70,6 @@ struct vdso_sym { =20 struct vdso_sym required_syms[] =3D { [sym_vvar_start] =3D {"vvar_start", 1}, - [sym_VDSO_FAKE_SECTION_TABLE_START] =3D { - "VDSO_FAKE_SECTION_TABLE_START", 0 - }, - [sym_VDSO_FAKE_SECTION_TABLE_END] =3D { - "VDSO_FAKE_SECTION_TABLE_END", 0 - }, }; =20 __attribute__((format(printf, 1, 2))) __attribute__((noreturn)) --=20 2.53.0