From nobody Fri Dec 19 20:36:11 2025 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 6EBE22D372E; Tue, 14 Oct 2025 06:49:27 +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=1760424570; cv=none; b=ED5w14CEEkQYodpw7Wu8eCe7PU+RrZYMe/Gv4JzPiKdvxIQEibSkMMBa8fnbEyd06Ntbhb66NBZu5Yj1DX6WLW7Xs++Hqp5Tj+ikQwB/wUc3ppw02ECCgJ82ndRpvkeKOXDvwU9xY1kCmjczEuxpNNe5JJVvqmMeuJmaBAm4saI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760424570; c=relaxed/simple; bh=GDhW6FGM84lRP3KSHJ2KY17zwk8LQQyNxwfOvs9V2nc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=s9hHb/pzjSR/NMEB/W0CqC+qHN4Eptj1Aat2R3aK92ncv/8eZleww/zzWWDLSAfPmttC1Od1JKqL6dIpd4NgZdxBxplOTNiTCrHaUCPPlSRqBGpD1mnVTXRQfa5G2go8iaZlC0XG6URZ1FwPK/XdHG9+0bKUlbp2IQfrwUCrBD8= 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=dB3+fJur; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=2+JRvprV; 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="dB3+fJur"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="2+JRvprV" From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1760424563; 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=4Gwgq8AosyJkorQ2Vw4pdkWCqDOsbs+MKvc8HYWAt8Q=; b=dB3+fJur5L/wJS0INnQuokGdZvGs9aMo4lJUCspycly7utLq9FvF1n8JXQNg3f/oDXPsft IyFCkEgcdgoXWdPdZUhxa407TtyAJumrKkyVpowUM9rJuynjAJv+ZUgFbmb5BuoaSvE3bL W03ynyHHYy/bXxYOZlakYshQ8fRF7JjXg/627PucENCo/f8WENoj5pgbC1jrdnzW2RnE2P kdf0pmLZx0817K38uvcGmES9UfrQnEtF81tgE/3cV4Zn5VwBw/IJCm/cYSlY6r7GWfsFVo ABUimfPmFT9vpaS85Guld+bPuEm84uwIl/f9D4+oM6g/PbUfjgIJx6iaHMPuwg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1760424563; 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=4Gwgq8AosyJkorQ2Vw4pdkWCqDOsbs+MKvc8HYWAt8Q=; b=2+JRvprVupBHPuTnEUF9ys7RYRJxxYmgfoCroUCx4GoISXqa5vep6bzw/3t1HAzS1YyRpo dOJfRw3aaedRPtAQ== Date: Tue, 14 Oct 2025 08:49:12 +0200 Subject: [PATCH v4 26/35] 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: <20251014-vdso-sparc64-generic-2-v4-26-e0607bf49dea@linutronix.de> References: <20251014-vdso-sparc64-generic-2-v4-0-e0607bf49dea@linutronix.de> In-Reply-To: <20251014-vdso-sparc64-generic-2-v4-0-e0607bf49dea@linutronix.de> To: Andy Lutomirski , Thomas Gleixner , 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 , Christophe Leroy , Huacai Chen , WANG Xuerui , Thomas Bogendoerfer , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Nagarathnam Muthusamy , Shannon Nelson 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=1760424546; l=2715; i=thomas.weissschuh@linutronix.de; s=20240209; h=from:subject:message-id; bh=GDhW6FGM84lRP3KSHJ2KY17zwk8LQQyNxwfOvs9V2nc=; b=9QagZvrQpzbkG0LHPL4Lgo9EdvhkqRIa0Jj0A61kqKp+4qQxWToMMAya2n2T6m5d9ZnGLVJ13 h4l6By4nuNbDFWWGYY1HsAYK9hUvxaMsLoEOnvkXXqg10FmpXmpDT0S 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 d31e57e8a3bbffd3afb187cd631e2491fde64148..9e0804789d11696948f11be3674= 80b530a1f18d9 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 dc81240aab6fd31a72b8a751cc2a4a821a3c4e4e..b97af5ec9f35c01f2a976b6213b= 1768b677ad231 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 2.51.0