From patchwork Thu Jul 4 14:36:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 13723848 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id C4E24C30653 for ; Thu, 4 Jul 2024 14:39:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=MA3pk+QC5AVBeIzxtVlRVmTWpeg4HG3bYgCq7LxXWgE=; b=dOjSaUaLRYAOsh 117HlJcTvc8Pp8zdO4whvVCb6pNyTDLTAd0Ka57KNyYKdT2aFvDwArVJYyNlcfN6rleY7EYCI/h/y 9+kJoE0VB4exMGV+MjC3Td3uaONXvFZPgHoM8KhhrXju3aktvvq/GgXxB0yXiNE7+Ug5Rs5tnRicj kSWdZggIV8xbPCzzbtGVjYziTCH76mivCxnKaHpm6NsuAfr4WuoczQpT6kaUuzFDlxRk8ujmVYDZv rjTijshyDz/XXmnUCXNbjmcJ877R/IikIVT06zQ3Yxi0KqQ3mn/8jGXFd2rA48sBzI47bdoIZBKPB cb5X3vNYeLKhaUe84B0w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sPNcF-0000000DVz3-2qxL; Thu, 04 Jul 2024 14:39:19 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sPNaf-0000000DUpR-2pkG; Thu, 04 Jul 2024 14:37:43 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 28A0C627A9; Thu, 4 Jul 2024 14:37:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A9DEFC4AF13; Thu, 4 Jul 2024 14:37:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1720103860; bh=SGxdMT+s6TdyFUJTUykvjKQsqRmp3AbcEBt+9JQTwHs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=S1htzPLcjs7pU16Tmrqttia/HNLUDban3aE6r5b02ODibeyQMutURMDJItDEDIVhf AI6n7Kh7lHx2hFh6wAavVYu447eqoscgcQJ76Z6IsmPRzxb8rRyYY7thZGrnJIozAJ X7ozCtr3cbAZKq262p8lYtXTuZ29fMxAjOgLS9ydB6ZxZix/ZGVaUYWcaimYJhJ0TV 3/RpNKQNl+g3L/RcWXW/rVfEZDB2IA+5qhwRX2I4802GfFz6GopJBOsiQXZyY4brNC 5VzgU4QgLA/eJjtaHKF7ODNFrkh+RSMFlFo0E5dGHyAFpbN2Lz5vabrUMcsYlrcvTv RKaMOdejnyfEg== From: Arnd Bergmann To: linux-arch@vger.kernel.org Cc: Arnd Bergmann , Masahiro Yamada , Nathan Chancellor , Nicolas Schier , Vineet Gupta , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Brian Cain , Huacai Chen , WANG Xuerui , Dinh Nguyen , Jonas Bonn , Stefan Kristiansson , Stafford Horne , Paul Walmsley , Palmer Dabbelt , Albert Ou , Rich Felker , John Paul Adrian Glaubitz , "David S. Miller" , Andreas Larsson , Christian Brauner , Mark Rutland , linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-openrisc@vger.kernel.org, linux-riscv@lists.infradead.org Subject: [PATCH 08/17] arc: convert to generic syscall table Date: Thu, 4 Jul 2024 16:36:02 +0200 Message-Id: <20240704143611.2979589-9-arnd@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240704143611.2979589-1-arnd@kernel.org> References: <20240704143611.2979589-1-arnd@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240704_073741_841334_0257365E X-CRM114-Status: GOOD ( 19.64 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org From: Arnd Bergmann The uapi/asm/unistd_32.h and asm/syscall_table_32.h headers can now be generated from scripts/syscall.tbl, which makes this consistent with the other architectures that have their own syscall.tbl. arc has a couple of architecture specific system calls, which I add to the generic table. This for some reason includes the deprecated sys_sysfs() syscall that was presumably added by accident. The time32, renameat, stat64 and rlimit entries in the syscall_abis_32 entry are for system calls that were part of the generic ABI when arch/arc got added but are no longer enabled by default for new architectures. Both the user visible side of asm/unistd.h and the internal syscall table in the kernel should have the same effective contents after this. Signed-off-by: Arnd Bergmann --- arch/arc/include/asm/Kbuild | 2 ++ arch/arc/include/asm/unistd.h | 14 ++++++++++ arch/arc/include/uapi/asm/Kbuild | 2 ++ arch/arc/include/uapi/asm/unistd.h | 43 +----------------------------- arch/arc/kernel/Makefile.syscalls | 3 +++ arch/arc/kernel/sys.c | 5 ++-- scripts/syscall.tbl | 5 ++++ 7 files changed, 30 insertions(+), 44 deletions(-) create mode 100644 arch/arc/include/asm/unistd.h create mode 100644 arch/arc/kernel/Makefile.syscalls diff --git a/arch/arc/include/asm/Kbuild b/arch/arc/include/asm/Kbuild index 3c1afa524b9c..49285a3ce239 100644 --- a/arch/arc/include/asm/Kbuild +++ b/arch/arc/include/asm/Kbuild @@ -1,4 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 +syscall-y += syscall_table_32.h + generic-y += extable.h generic-y += kvm_para.h generic-y += mcs_spinlock.h diff --git a/arch/arc/include/asm/unistd.h b/arch/arc/include/asm/unistd.h new file mode 100644 index 000000000000..211c230d88d6 --- /dev/null +++ b/arch/arc/include/asm/unistd.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +#ifndef _ASM_ARC_UNISTD_H +#define _ASM_ARC_UNISTD_H + +#include + +#define __ARCH_WANT_STAT64 +#define __ARCH_WANT_SYS_CLONE +#define __ARCH_WANT_SYS_VFORK +#define __ARCH_WANT_SYS_FORK + +#define NR_syscalls __NR_syscalls + +#endif diff --git a/arch/arc/include/uapi/asm/Kbuild b/arch/arc/include/uapi/asm/Kbuild index e78470141932..2501e82a1a0a 100644 --- a/arch/arc/include/uapi/asm/Kbuild +++ b/arch/arc/include/uapi/asm/Kbuild @@ -1,2 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 +syscall-y += unistd_32.h + generic-y += ucontext.h diff --git a/arch/arc/include/uapi/asm/unistd.h b/arch/arc/include/uapi/asm/unistd.h index 5eafa1115162..cb2905c7c5da 100644 --- a/arch/arc/include/uapi/asm/unistd.h +++ b/arch/arc/include/uapi/asm/unistd.h @@ -7,45 +7,4 @@ * published by the Free Software Foundation. */ -/******** no-legacy-syscalls-ABI *******/ - -/* - * Non-typical guard macro to enable inclusion twice in ARCH sys.c - * That is how the Generic syscall wrapper generator works - */ -#if !defined(_UAPI_ASM_ARC_UNISTD_H) || defined(__SYSCALL) -#define _UAPI_ASM_ARC_UNISTD_H - -#define __ARCH_WANT_RENAMEAT -#define __ARCH_WANT_STAT64 -#define __ARCH_WANT_SET_GET_RLIMIT -#define __ARCH_WANT_SYS_EXECVE -#define __ARCH_WANT_SYS_CLONE -#define __ARCH_WANT_SYS_VFORK -#define __ARCH_WANT_SYS_FORK -#define __ARCH_WANT_TIME32_SYSCALLS - -#define sys_mmap2 sys_mmap_pgoff - -#include - -#define NR_syscalls __NR_syscalls - -/* Generic syscall (fs/filesystems.c - lost in asm-generic/unistd.h */ -#define __NR_sysfs (__NR_arch_specific_syscall + 3) - -/* ARC specific syscall */ -#define __NR_cacheflush (__NR_arch_specific_syscall + 0) -#define __NR_arc_settls (__NR_arch_specific_syscall + 1) -#define __NR_arc_gettls (__NR_arch_specific_syscall + 2) -#define __NR_arc_usr_cmpxchg (__NR_arch_specific_syscall + 4) - -__SYSCALL(__NR_cacheflush, sys_cacheflush) -__SYSCALL(__NR_arc_settls, sys_arc_settls) -__SYSCALL(__NR_arc_gettls, sys_arc_gettls) -__SYSCALL(__NR_arc_usr_cmpxchg, sys_arc_usr_cmpxchg) -__SYSCALL(__NR_sysfs, sys_sysfs) - -#undef __SYSCALL - -#endif +#include diff --git a/arch/arc/kernel/Makefile.syscalls b/arch/arc/kernel/Makefile.syscalls new file mode 100644 index 000000000000..391d30ab7a83 --- /dev/null +++ b/arch/arc/kernel/Makefile.syscalls @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0 + +syscall_abis_32 += arc time32 renameat stat64 rlimit diff --git a/arch/arc/kernel/sys.c b/arch/arc/kernel/sys.c index 1069446bdc58..36a2a95c083b 100644 --- a/arch/arc/kernel/sys.c +++ b/arch/arc/kernel/sys.c @@ -8,11 +8,12 @@ #define sys_clone sys_clone_wrapper #define sys_clone3 sys_clone3_wrapper +#define sys_mmap2 sys_mmap_pgoff -#undef __SYSCALL #define __SYSCALL(nr, call) [nr] = (call), +#define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, native) void *sys_call_table[NR_syscalls] = { [0 ... NR_syscalls-1] = sys_ni_syscall, -#include +#include }; diff --git a/scripts/syscall.tbl b/scripts/syscall.tbl index 7871bbfa9b58..13f4c79ba5c2 100644 --- a/scripts/syscall.tbl +++ b/scripts/syscall.tbl @@ -288,6 +288,11 @@ 243 time32 recvmmsg sys_recvmmsg_time32 compat_sys_recvmmsg_time32 243 64 recvmmsg sys_recvmmsg # Architectures may provide up to 16 syscalls of their own between 244 and 259 +244 arc cacheflush sys_cacheflush +245 arc arc_settls sys_arc_settls +246 arc arc_gettls sys_arc_gettls +247 arc sysfs sys_sysfs +248 arc arc_usr_cmpxchg sys_arc_usr_cmpxchg 260 time32 wait4 sys_wait4 compat_sys_wait4 260 64 wait4 sys_wait4 261 common prlimit64 sys_prlimit64