From patchwork Mon Apr 27 21:59:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vineet Gupta X-Patchwork-Id: 1277987 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=sourceware.org (client-ip=8.43.85.97; helo=sourceware.org; envelope-from=libc-alpha-bounces@sourceware.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=sourceware.org Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; secure) header.d=sourceware.org header.i=@sourceware.org header.a=rsa-sha256 header.s=default header.b=Kq1shLsI; dkim-atps=neutral Received: from sourceware.org (server2.sourceware.org [8.43.85.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 499zGL6HnVz9sRY for ; Tue, 28 Apr 2020 07:59:54 +1000 (AEST) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id AD3DE3870866; Mon, 27 Apr 2020 21:59:52 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org AD3DE3870866 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1588024792; bh=DNwCzzX9tUxTKfAgCMbxi1AnFQTLPTFxfHd35bUVmjM=; h=To:Subject:Date:In-Reply-To:References:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc: From; b=Kq1shLsIvbxdQ8vQ5/b63cl4A0ts7FUApN2ioDP+y+kiY0XT/B525g0+crBl6zoYn Jm2CbQaDMwAL0OY8ZPHHgBJPPbhQQ96wgsZBRSGEpiFyXoszyiDLF3yDNqU052mr1L 02xcIDrwsdHTtSI78vfEQpr9OVqFC/KdMWsDKylU= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from smtprelay-out1.synopsys.com (smtprelay-out1.synopsys.com [149.117.73.133]) by sourceware.org (Postfix) with ESMTPS id 77763386EC79 for ; Mon, 27 Apr 2020 21:59:46 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 77763386EC79 Received: from mailhost.synopsys.com (sv2-mailhost2.synopsys.com [10.205.2.134]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id C70F740216; Mon, 27 Apr 2020 21:59:44 +0000 (UTC) Received: from vineetg-Latitude-7400.internal.synopsys.com (unknown [10.13.183.89]) by mailhost.synopsys.com (Postfix) with ESMTP id 8A956A007B; Mon, 27 Apr 2020 21:59:40 +0000 (UTC) To: libc-alpha@sourceware.org Subject: [PATCH] semaphore: consolidate arch headers into a generic one Date: Mon, 27 Apr 2020 14:59:38 -0700 Message-Id: <20200427215938.14136-1-vgupta@synopsys.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <03f4a9b3-b1ca-90fa-0b6a-609a3135267d@linaro.org> References: <03f4a9b3-b1ca-90fa-0b6a-609a3135267d@linaro.org> MIME-Version: 1.0 X-Spam-Status: No, score=-24.4 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, KAM_SHORT, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Vineet Gupta via Libc-alpha From: Vineet Gupta Reply-To: Vineet Gupta Cc: Vineet Gupta Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" This consolidates the copy-pasted arch specific semaphore header into single version (based on s390) which suffices 32-bit and and 64-bit arch/ABI based on the canonical WORDSIZE. For now I've left out arches which use alternate defines to choose for 32 vs 64-bit builds (aarch64, mips) which in theory can also use the same header. Passes build-many for aarch64-linux-gnu arm-linux-gnueabi arm-linux-gnueabihf riscv64-linux-gnu-rv64imac-lp64 riscv64-linux-gnu-rv64imafdc-lp64 x86_64-linux-gnu microblaze-linux-gnu nios2-linux-gnu Suggested-by: Adhemerval Zanella Reviewed-by: Adhemerval Zanella --- sysdeps/arm/nptl/bits/semaphore.h | 34 ---------------- sysdeps/csky/nptl/bits/semaphore.h | 35 ---------------- sysdeps/hppa/nptl/bits/semaphore.h | 31 -------------- sysdeps/ia64/nptl/bits/semaphore.h | 35 ---------------- sysdeps/microblaze/nptl/bits/semaphore.h | 32 --------------- sysdeps/nios2/nptl/bits/semaphore.h | 32 --------------- sysdeps/riscv/nptl/bits/semaphore.h | 33 --------------- sysdeps/sh/nptl/bits/semaphore.h | 35 ---------------- sysdeps/sparc/nptl/bits/semaphore.h | 40 ------------------- .../unix/sysv/linux/alpha/bits/semaphore.h | 33 --------------- .../nptl => unix/sysv/linux}/bits/semaphore.h | 0 .../unix/sysv/linux/powerpc/bits/semaphore.h | 40 ------------------- sysdeps/x86/bits/semaphore.h | 40 ------------------- 13 files changed, 420 deletions(-) delete mode 100644 sysdeps/arm/nptl/bits/semaphore.h delete mode 100644 sysdeps/csky/nptl/bits/semaphore.h delete mode 100644 sysdeps/hppa/nptl/bits/semaphore.h delete mode 100644 sysdeps/ia64/nptl/bits/semaphore.h delete mode 100644 sysdeps/microblaze/nptl/bits/semaphore.h delete mode 100644 sysdeps/nios2/nptl/bits/semaphore.h delete mode 100644 sysdeps/riscv/nptl/bits/semaphore.h delete mode 100644 sysdeps/sh/nptl/bits/semaphore.h delete mode 100644 sysdeps/sparc/nptl/bits/semaphore.h delete mode 100644 sysdeps/unix/sysv/linux/alpha/bits/semaphore.h rename sysdeps/{s390/nptl => unix/sysv/linux}/bits/semaphore.h (100%) delete mode 100644 sysdeps/unix/sysv/linux/powerpc/bits/semaphore.h delete mode 100644 sysdeps/x86/bits/semaphore.h diff --git a/sysdeps/arm/nptl/bits/semaphore.h b/sysdeps/arm/nptl/bits/semaphore.h deleted file mode 100644 index c93179e64a2e..000000000000 --- a/sysdeps/arm/nptl/bits/semaphore.h +++ /dev/null @@ -1,34 +0,0 @@ -/* Copyright (C) 2002-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library. If not, see - . */ - -#ifndef _SEMAPHORE_H -# error "Never use directly; include instead." -#endif - - -#define __SIZEOF_SEM_T 16 - - -/* Value returned if `sem_open' failed. */ -#define SEM_FAILED ((sem_t *) 0) - - -typedef union -{ - char __size[__SIZEOF_SEM_T]; - long int __align; -} sem_t; diff --git a/sysdeps/csky/nptl/bits/semaphore.h b/sysdeps/csky/nptl/bits/semaphore.h deleted file mode 100644 index 69b37249f5e3..000000000000 --- a/sysdeps/csky/nptl/bits/semaphore.h +++ /dev/null @@ -1,35 +0,0 @@ -/* Machine-specific POSIX semaphore type layouts. C-SKY version. - Copyright (C) 2018-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library. If not, see - . */ - -#ifndef _SEMAPHORE_H -# error "Never use directly; include instead." -#endif - - -#define __SIZEOF_SEM_T 16 - - -/* Value returned if `sem_open' failed. */ -#define SEM_FAILED ((sem_t *) 0) - - -typedef union -{ - char __size[__SIZEOF_SEM_T]; - long int __align; -} sem_t; diff --git a/sysdeps/hppa/nptl/bits/semaphore.h b/sysdeps/hppa/nptl/bits/semaphore.h deleted file mode 100644 index 3864e6e16ee2..000000000000 --- a/sysdeps/hppa/nptl/bits/semaphore.h +++ /dev/null @@ -1,31 +0,0 @@ -/* Copyright (C) 2002-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library. If not, see - . */ - -#ifndef _SEMAPHORE_H -# error "Never use directly; include instead." -#endif - -#define __SIZEOF_SEM_T 16 - -/* Value returned if `sem_open' failed. */ -#define SEM_FAILED ((sem_t *) 0) - -typedef union -{ - char __size[__SIZEOF_SEM_T]; - long int __align; -} sem_t; diff --git a/sysdeps/ia64/nptl/bits/semaphore.h b/sysdeps/ia64/nptl/bits/semaphore.h deleted file mode 100644 index 1c52ff27ceee..000000000000 --- a/sysdeps/ia64/nptl/bits/semaphore.h +++ /dev/null @@ -1,35 +0,0 @@ -/* Copyright (C) 2002-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#ifndef _SEMAPHORE_H -# error "Never use directly; include instead." -#endif - - -#define __SIZEOF_SEM_T 32 - - -/* Value returned if `sem_open' failed. */ -#define SEM_FAILED ((sem_t *) 0) - - -typedef union -{ - char __size[__SIZEOF_SEM_T]; - long int __align; -} sem_t; diff --git a/sysdeps/microblaze/nptl/bits/semaphore.h b/sysdeps/microblaze/nptl/bits/semaphore.h deleted file mode 100644 index d5107b55330c..000000000000 --- a/sysdeps/microblaze/nptl/bits/semaphore.h +++ /dev/null @@ -1,32 +0,0 @@ -/* Copyright (C) 2002-2020 Free Software Foundation, Inc. - - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#ifndef _SEMAPHORE_H -# error "Never use directly; include instead." -#endif - -#define __SIZEOF_SEM_T 16 - -/* Value returned if `sem_open' failed. */ -#define SEM_FAILED ((sem_t *) 0) - -typedef union -{ - char __size[__SIZEOF_SEM_T]; - long int __align; -} sem_t; diff --git a/sysdeps/nios2/nptl/bits/semaphore.h b/sysdeps/nios2/nptl/bits/semaphore.h deleted file mode 100644 index 7fa2521587c8..000000000000 --- a/sysdeps/nios2/nptl/bits/semaphore.h +++ /dev/null @@ -1,32 +0,0 @@ -/* Machine-specific POSIX semaphore type layouts. Nios II version. - Copyright (C) 2002-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#ifndef _SEMAPHORE_H -# error "Never use directly; include instead." -#endif - -#define __SIZEOF_SEM_T 16 - -/* Value returned if `sem_open' failed. */ -#define SEM_FAILED ((sem_t *) 0) - -typedef union -{ - char __size[__SIZEOF_SEM_T]; - long int __align; -} sem_t; diff --git a/sysdeps/riscv/nptl/bits/semaphore.h b/sysdeps/riscv/nptl/bits/semaphore.h deleted file mode 100644 index 09cfdebd0d24..000000000000 --- a/sysdeps/riscv/nptl/bits/semaphore.h +++ /dev/null @@ -1,33 +0,0 @@ -/* Machine-specific POSIX semaphore type layouts. RISC-V version. - Copyright (C) 2002-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library. If not, see - . */ - -#ifndef _SEMAPHORE_H -# error "Never use directly; include instead." -#endif - -#define __SIZEOF_SEM_T (4 * __SIZEOF_POINTER__) - -/* Value returned if `sem_open' failed. */ -#define SEM_FAILED ((sem_t *) 0) - - -typedef union -{ - char __size[__SIZEOF_SEM_T]; - long int __align; -} sem_t; diff --git a/sysdeps/sh/nptl/bits/semaphore.h b/sysdeps/sh/nptl/bits/semaphore.h deleted file mode 100644 index e7f48eb32b8e..000000000000 --- a/sysdeps/sh/nptl/bits/semaphore.h +++ /dev/null @@ -1,35 +0,0 @@ -/* Copyright (C) 2002-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#ifndef _SEMAPHORE_H -# error "Never use directly; include instead." -#endif - - -#define __SIZEOF_SEM_T 16 - - -/* Value returned if `sem_open' failed. */ -#define SEM_FAILED ((sem_t *) 0) - - -typedef union -{ - char __size[__SIZEOF_SEM_T]; - long int __align; -} sem_t; diff --git a/sysdeps/sparc/nptl/bits/semaphore.h b/sysdeps/sparc/nptl/bits/semaphore.h deleted file mode 100644 index 020fd757d5ad..000000000000 --- a/sysdeps/sparc/nptl/bits/semaphore.h +++ /dev/null @@ -1,40 +0,0 @@ -/* Machine-specific POSIX semaphore type layouts. SPARC version. - Copyright (C) 2003-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek , 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#ifndef _SEMAPHORE_H -# error "Never use directly; include instead." -#endif - -#include - -#if __WORDSIZE == 64 -# define __SIZEOF_SEM_T 32 -#else -# define __SIZEOF_SEM_T 16 -#endif - -/* Value returned if `sem_open' failed. */ -#define SEM_FAILED ((sem_t *) 0) - - -typedef union -{ - char __size[__SIZEOF_SEM_T]; - long int __align; -} sem_t; diff --git a/sysdeps/unix/sysv/linux/alpha/bits/semaphore.h b/sysdeps/unix/sysv/linux/alpha/bits/semaphore.h deleted file mode 100644 index ffd8d4a350a7..000000000000 --- a/sysdeps/unix/sysv/linux/alpha/bits/semaphore.h +++ /dev/null @@ -1,33 +0,0 @@ -/* Machine-specific POSIX semaphore type layouts. Alpha version. - Copyright (C) 2003-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library. If not, see - . */ - -#ifndef _SEMAPHORE_H -# error "Never use directly; include instead." -#endif - -# define __SIZEOF_SEM_T 32 - -/* Value returned if `sem_open' failed. */ -#define SEM_FAILED ((sem_t *) 0) - - -typedef union -{ - char __size[__SIZEOF_SEM_T]; - long int __align; -} sem_t; diff --git a/sysdeps/s390/nptl/bits/semaphore.h b/sysdeps/unix/sysv/linux/bits/semaphore.h similarity index 100% rename from sysdeps/s390/nptl/bits/semaphore.h rename to sysdeps/unix/sysv/linux/bits/semaphore.h diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/semaphore.h b/sysdeps/unix/sysv/linux/powerpc/bits/semaphore.h deleted file mode 100644 index 717e6f82dad9..000000000000 --- a/sysdeps/unix/sysv/linux/powerpc/bits/semaphore.h +++ /dev/null @@ -1,40 +0,0 @@ -/* Machine-specific POSIX semaphore type layouts. PowerPC version. - Copyright (C) 2003-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Paul Mackerras , 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#ifndef _SEMAPHORE_H -# error "Never use directly; include instead." -#endif - -#include - -#if __WORDSIZE == 64 -# define __SIZEOF_SEM_T 32 -#else -# define __SIZEOF_SEM_T 16 -#endif - -/* Value returned if `sem_open' failed. */ -#define SEM_FAILED ((sem_t *) 0) - - -typedef union -{ - char __size[__SIZEOF_SEM_T]; - long int __align; -} sem_t; diff --git a/sysdeps/x86/bits/semaphore.h b/sysdeps/x86/bits/semaphore.h deleted file mode 100644 index 299de51fa82b..000000000000 --- a/sysdeps/x86/bits/semaphore.h +++ /dev/null @@ -1,40 +0,0 @@ -/* Copyright (C) 2002-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#ifndef _SEMAPHORE_H -# error "Never use directly; include instead." -#endif - -#include - -#if __WORDSIZE == 64 -# define __SIZEOF_SEM_T 32 -#else -# define __SIZEOF_SEM_T 16 -#endif - - -/* Value returned if `sem_open' failed. */ -#define SEM_FAILED ((sem_t *) 0) - - -typedef union -{ - char __size[__SIZEOF_SEM_T]; - long int __align; -} sem_t;