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[209.132.180.131]) by mx.google.com with ESMTPS id et5si25793113pad.254.2016.11.08.12.34.36 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 08 Nov 2016 12:34:36 -0800 (PST) Received-SPF: pass (google.com: domain of libc-alpha-return-74546-patch=linaro.org@sourceware.org designates 209.132.180.131 as permitted sender) client-ip=209.132.180.131; Authentication-Results: mx.google.com; dkim=pass header.i=@sourceware.org; spf=pass (google.com: domain of libc-alpha-return-74546-patch=linaro.org@sourceware.org designates 209.132.180.131 as permitted sender) smtp.mailfrom=libc-alpha-return-74546-patch=linaro.org@sourceware.org; dmarc=fail (p=NONE dis=NONE) header.from=linaro.org DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:date:message-id:in-reply-to :references; q=dns; s=default; b=Y14llwbinjBwBIvn+92SgjQAx9K6SVz jgh+U+/0266sMDu3Ri53CithagGHNJTKjhzLQOSOSaD3wo91whp4IRoaw9vSDNs3 92OZG+FdgbDonvcVSCOgBbOIuYWhmjR509HxR0AkKP80Rnk0ori46YkVt7gOWYyu iZbrIl/RqQ0A= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:date:message-id:in-reply-to :references; s=default; bh=yGsOHnaZRvS556t65vJDqarui6A=; b=jCuE1 GEemO31k4eMTDbauweagRNLTL2H+SlqjdcHyQGUgFj22MP/Fa9/LyV+snEyIJUXT HdML1NSRx6Yq21WS42FUTEjkXmWMyv39TjKSTfuKeOcRRRT0gtpDpQp7Vy/+sBrH 1cjLFq9TqIuTFNFH+UoVmwGKyVGRJPuHZfNOmI= Received: (qmail 126040 invoked by alias); 8 Nov 2016 20:30:52 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 125545 invoked by uid 89); 8 Nov 2016 20:30:46 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, RCVD_IN_SORBS_SPAM, SPF_PASS autolearn=no version=3.3.2 spammy=drepper, 1511, 1634, sysdep_routines X-HELO: mail-ua0-f180.google.com X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references; bh=KSUrCZ8miqR+M8IMov9gjIoxvP21utmuoTiJVAS79EM=; b=Ayhz1R6mPtz2dV3l3+IuyXMH+inkoHOKvbFRV380OuAgr1yYwTbCMa/CUfWj/TGfqg 3EItRrJSyg5Biqd9gooyFGsTojln5ycGVETfj7S12sHkxf8X2I74kiskNi3IhMehYa9Y E7G6BwzeDVSYAa4NMZ4+v1h3zdB0VMPN9HQN/7W3259Yp/2U2Ut8M94XnlTCOrpKlQ1q 6grjNb2bbfpfNJ5kLMMHE3yFGbrsLTqnFWCN/f+emJIrBEVGpcKwyt1DolDIuqPltwc0 S+3miQlpC5B7Tx4viV4rxTirGZJGJpVB5PB/BaFSiRhMQscoXDmg29QK57u6G5T4i/4d r8Yw== X-Gm-Message-State: ABUngvfyzBmkGcqp2az0AnzXuIUKBxTHnovsEHeF8IcMH5/usoli4vnAmOQWqU3L4kVPxNSq X-Received: by 10.176.3.72 with SMTP id 66mr9291873uat.45.1478637036531; Tue, 08 Nov 2016 12:30:36 -0800 (PST) From: Adhemerval Zanella To: libc-alpha@sourceware.org Subject: [PATCH v3 14/17] Consolidate Linux shmctl implementation Date: Tue, 8 Nov 2016 18:30:04 -0200 Message-Id: <1478637007-31212-15-git-send-email-adhemerval.zanella@linaro.org> In-Reply-To: <1478637007-31212-1-git-send-email-adhemerval.zanella@linaro.org> References: <1478637007-31212-1-git-send-email-adhemerval.zanella@linaro.org> Changes from previous version: - Remove shmctl from syscalls.list. -- This patch consolidates the shmctl Linux implementation in only one default file, sysdeps/unix/sysv/linux/shmctl.c. If tries to use the direct syscall if it is supported, otherwise will use the old ipc multiplex mechanism. The patch also simplify header inclusion and reorganize internal compat symbol to be built only if old ipc is defined. Checked on x86_64, i686, powerpc64le, aarch64, and armhf. * sysdeps/unix/sysv/linux/alpha/Makefile (sysdeps_routines): Remove oldshmctl. * sysdeps/unix/sysv/linux/alpha/syscalls.list (shmctl): Remove. * sysdeps/unix/sysv/linux/arm/syscalls.list (shmctl): Likewise. * sysdeps/unix/sysv/linux/generic/syscalls.list (shmctl): Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list (shmctl): Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list (shmctl): Likewise. * sysdeps/unix/sysv/linux/microblaze/syscalls.list (shmctl): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (shmctl): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (shmctl): Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list (shmctl): Likewise. * sysdeps/unix/sysv/linux/alpha/shmctl.c: Remove file. * sysdeps/unix/sysv/linux/arm/shmctl.c: Likewise. * sysdeps/unix/sysv/linux/microblaze/shmctl.c: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/shmctl.c: Use default implementation. * sysdeps/unix/sysv/linux/shmctl.c (__new_shmctl): Use shmctl syscall if it is defined. --- ChangeLog | 21 ++++++++ sysdeps/unix/sysv/linux/alpha/Makefile | 3 -- sysdeps/unix/sysv/linux/alpha/shmctl.c | 1 - sysdeps/unix/sysv/linux/alpha/syscalls.list | 1 - sysdeps/unix/sysv/linux/arm/shmctl.c | 34 ------------- sysdeps/unix/sysv/linux/generic/syscalls.list | 1 - sysdeps/unix/sysv/linux/hppa/syscalls.list | 1 - sysdeps/unix/sysv/linux/ia64/syscalls.list | 1 - sysdeps/unix/sysv/linux/microblaze/shmctl.c | 1 - sysdeps/unix/sysv/linux/mips/mips64/shmctl.c | 17 ++----- sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list | 1 - sysdeps/unix/sysv/linux/shmctl.c | 59 ++++++++++------------ sysdeps/unix/sysv/linux/x86_64/syscalls.list | 1 - 13 files changed, 53 insertions(+), 89 deletions(-) delete mode 100644 sysdeps/unix/sysv/linux/alpha/shmctl.c delete mode 100644 sysdeps/unix/sysv/linux/arm/shmctl.c delete mode 100644 sysdeps/unix/sysv/linux/microblaze/shmctl.c -- 2.7.4 diff --git a/sysdeps/unix/sysv/linux/alpha/Makefile b/sysdeps/unix/sysv/linux/alpha/Makefile index 386b3fd..4bbe9bf 100644 --- a/sysdeps/unix/sysv/linux/alpha/Makefile +++ b/sysdeps/unix/sysv/linux/alpha/Makefile @@ -17,9 +17,6 @@ sysdep_routines += osf_select osf_gettimeofday osf_settimeofday \ osf_getitimer osf_setitimer osf_utimes \ osf_getrusage osf_wait4 -# Support old ipc control -sysdep_routines += oldshmctl - CFLAGS-ioperm.c = -Wa,-mev6 endif diff --git a/sysdeps/unix/sysv/linux/alpha/shmctl.c b/sysdeps/unix/sysv/linux/alpha/shmctl.c deleted file mode 100644 index f73ed6f..0000000 --- a/sysdeps/unix/sysv/linux/alpha/shmctl.c +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/sysdeps/unix/sysv/linux/alpha/syscalls.list b/sysdeps/unix/sysv/linux/alpha/syscalls.list index 9948d2d..bf9c8ad 100644 --- a/sysdeps/unix/sysv/linux/alpha/syscalls.list +++ b/sysdeps/unix/sysv/linux/alpha/syscalls.list @@ -1,6 +1,5 @@ # File name Caller Syscall name # args Strong name Weak names -oldshmctl EXTRA shmctl i:iip __old_shmctl shmctl@GLIBC_2.0 shmdt - shmdt i:s __shmdt shmdt shmget - shmget i:iii __shmget shmget diff --git a/sysdeps/unix/sysv/linux/arm/shmctl.c b/sysdeps/unix/sysv/linux/arm/shmctl.c deleted file mode 100644 index 23c4b8d..0000000 --- a/sysdeps/unix/sysv/linux/arm/shmctl.c +++ /dev/null @@ -1,34 +0,0 @@ -/* Copyright (C) 1995-2016 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , August 1995. - - 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 - . */ - -#include -#include -#include -#include -#include -#include - - -int -__new_shmctl (int shmid, int cmd, struct shmid_ds *buf) -{ - return INLINE_SYSCALL (shmctl, 3, shmid, cmd | __IPC_64, buf); -} - -#include -versioned_symbol (libc, __new_shmctl, shmctl, GLIBC_2_2); diff --git a/sysdeps/unix/sysv/linux/generic/syscalls.list b/sysdeps/unix/sysv/linux/generic/syscalls.list index 0df73a9..80244c4 100644 --- a/sysdeps/unix/sysv/linux/generic/syscalls.list +++ b/sysdeps/unix/sysv/linux/generic/syscalls.list @@ -2,7 +2,6 @@ # SysV APIs shmget - shmget i:iii __shmget shmget -shmctl - shmctl i:iip __shmctl shmctl shmdt - shmdt i:s __shmdt shmdt # Socket APIs diff --git a/sysdeps/unix/sysv/linux/hppa/syscalls.list b/sysdeps/unix/sysv/linux/hppa/syscalls.list index f757f02..d755bfd 100644 --- a/sysdeps/unix/sysv/linux/hppa/syscalls.list +++ b/sysdeps/unix/sysv/linux/hppa/syscalls.list @@ -1,7 +1,6 @@ # File name Caller Syscall name # args Strong name Weak names # semaphore and shm system calls -shmctl - shmctl i:iip __shmctl shmctl shmdt - shmdt i:s __shmdt shmdt shmget - shmget i:iii __shmget shmget diff --git a/sysdeps/unix/sysv/linux/ia64/syscalls.list b/sysdeps/unix/sysv/linux/ia64/syscalls.list index b0a3a44..90bd870 100644 --- a/sysdeps/unix/sysv/linux/ia64/syscalls.list +++ b/sysdeps/unix/sysv/linux/ia64/syscalls.list @@ -5,7 +5,6 @@ umount2 - umount 2 __umount2 umount2 getpriority - getpriority i:ii __getpriority getpriority # semaphore and shm system calls -shmctl - shmctl i:iip __shmctl shmctl shmdt - shmdt i:s __shmdt shmdt shmget - shmget i:iii __shmget shmget diff --git a/sysdeps/unix/sysv/linux/microblaze/shmctl.c b/sysdeps/unix/sysv/linux/microblaze/shmctl.c deleted file mode 100644 index f73ed6f..0000000 --- a/sysdeps/unix/sysv/linux/microblaze/shmctl.c +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/sysdeps/unix/sysv/linux/mips/mips64/shmctl.c b/sysdeps/unix/sysv/linux/mips/mips64/shmctl.c index ea0fa94..f835cf8 100644 --- a/sysdeps/unix/sysv/linux/mips/mips64/shmctl.c +++ b/sysdeps/unix/sysv/linux/mips/mips64/shmctl.c @@ -15,18 +15,11 @@ License along with the GNU C Library. If not, see . */ -#include -#include -#include -#include +#include -int __shmctl (int shmid, int cmd, struct shmid_ds *buf); +#undef SHLIB_COMPAT +#define SHLIB_COMPAT(a, b, c) 0 -int -__shmctl (int shmid, int cmd, struct shmid_ds *buf) -{ - return INLINE_SYSCALL (shmctl, 3, shmid, cmd | __IPC_64, buf); -} +#define DEFAULT_VERSION GLIBC_2_0 -#include -versioned_symbol (libc, __shmctl, shmctl, GLIBC_2_0); +#include <./sysdeps/unix/sysv/linux/shmctl.c> diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list b/sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list index 40ed7c5..4d478ce 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list +++ b/sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list @@ -1,6 +1,5 @@ # File name Caller Syscall name # args Strong name Weak names # semaphore and shm system calls -shmctl - shmctl i:iip __shmctl shmctl shmdt - shmdt i:s __shmdt shmdt shmget - shmget i:iii __shmget shmget diff --git a/sysdeps/unix/sysv/linux/shmctl.c b/sysdeps/unix/sysv/linux/shmctl.c index b2caf75..f2b6830 100644 --- a/sysdeps/unix/sysv/linux/shmctl.c +++ b/sysdeps/unix/sysv/linux/shmctl.c @@ -16,18 +16,34 @@ License along with the GNU C Library; if not, see . */ -#include #include +#include #include - #include -#include -#include -#include #include +#include + + +#ifndef DEFAULT_VERSION +# define DEFAULT_VERSION GLIBC_2_2 +#endif -#include +/* Provide operations to control over shared memory segments. */ +int +__new_shmctl (int shmid, int cmd, struct shmid_ds *buf) +{ +#ifdef __ASSUME_SYSVIPC_SYSCALL + return INLINE_SYSCALL_CALL (shmctl, shmid, cmd | __IPC_64, buf); +#else + return INLINE_SYSCALL_CALL (ipc, IPCOP_shmctl, shmid, cmd | __IPC_64, 0, + buf); +#endif +} +versioned_symbol (libc, __new_shmctl, shmctl, DEFAULT_VERSION); + + +#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2) struct __old_shmid_ds { struct __old_ipc_perm shm_perm; /* operation permission struct */ @@ -43,36 +59,15 @@ struct __old_shmid_ds struct vm_area_struct *__attaches; /* descriptors for attaches */ }; -struct __old_shminfo -{ - int shmmax; - int shmmin; - int shmmni; - int shmseg; - int shmall; -}; - -/* Provide operations to control over shared memory segments. */ -#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2) -int __old_shmctl (int, int, struct __old_shmid_ds *); -#endif -int __new_shmctl (int, int, struct shmid_ds *); - -#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2) int attribute_compat_text_section __old_shmctl (int shmid, int cmd, struct __old_shmid_ds *buf) { - return INLINE_SYSCALL (ipc, 5, IPCOP_shmctl, shmid, cmd, 0, buf); +#ifdef __ASSUME_SYSVIPC_SYSCALL + return INLINE_SYSCALL_CALL (shmctl, shmid, cmd, buf); +#else + return INLINE_SYSCALL_CALL (ipc, IPCOP_shmctl, shmid, cmd, 0, buf); +#endif } compat_symbol (libc, __old_shmctl, shmctl, GLIBC_2_0); #endif - -int -__new_shmctl (int shmid, int cmd, struct shmid_ds *buf) -{ - return INLINE_SYSCALL (ipc, 5, IPCOP_shmctl, shmid, cmd | __IPC_64, 0, - buf); -} - -versioned_symbol (libc, __new_shmctl, shmctl, GLIBC_2_2); diff --git a/sysdeps/unix/sysv/linux/x86_64/syscalls.list b/sysdeps/unix/sysv/linux/x86_64/syscalls.list index 1c2c663..a5db9dc 100644 --- a/sysdeps/unix/sysv/linux/x86_64/syscalls.list +++ b/sysdeps/unix/sysv/linux/x86_64/syscalls.list @@ -2,7 +2,6 @@ arch_prctl EXTRA arch_prctl i:ii __arch_prctl arch_prctl modify_ldt EXTRA modify_ldt i:ipi __modify_ldt modify_ldt -shmctl - shmctl i:iip __shmctl shmctl shmdt - shmdt i:s __shmdt shmdt shmget - shmget i:iii __shmget shmget syscall_clock_gettime EXTRA clock_gettime Ei:ip __syscall_clock_gettime