From patchwork Tue Dec 27 14:01:20 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adhemerval Zanella Netto X-Patchwork-Id: 18704 Received: (qmail 77718 invoked by alias); 27 Dec 2016 14:02:03 -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 77448 invoked by uid 89); 27 Dec 2016 14:02:01 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, SPF_PASS autolearn=ham version=3.3.2 spammy=Successful, 9, 7, Perform, socket X-HELO: mail-yw0-f170.google.com X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references; bh=W9Bqqu6hx1xtmxP8EDwpdNi07RDcZ0cC5N0hP+GpsGc=; b=ErJ00lc9/TROVB4t4jJ33q3a/a6gjfzeSrEYuGZuMZM9Cs4iQRtAK/JXIQFZSrMiGJ shff7k+VDwvyQu/CTBeiATYZMTCQpSqnUUwSZ8HhuBDTBy7ZYxQTniyTq6HmAWz6IplF 17d80AsZ9GBW7x7u2svzfD9LGCP0VNTgQ3WwVOOPH6RU2twz2P/ouxuMC5xzu/b0Wsyr ell9e4jvKzmfyxWVGY9wWihl+4zesrLsdKJhj9cmaTskgRZZ6uXTAPbPpitlafZ4LDIw owTteesBSQKCgWWmBFosngLUCPGg6U9o1F73BHP4lqixb7u5UBkqIbbaQCDaqVsOK3ex 6XJQ== X-Gm-Message-State: AIkVDXJJvACh+FOqXMwuhuIYRth+iJWABUcGrI+KiuTpP0AFA1jSioJN7riyVgQr/hAq4WNZ X-Received: by 10.13.210.132 with SMTP id u126mr24446858ywd.122.1482847308046; Tue, 27 Dec 2016 06:01:48 -0800 (PST) From: Adhemerval Zanella To: libc-alpha@sourceware.org Subject: [PATCH 11/17] Consolidate Linux semtimedop implementation Date: Tue, 27 Dec 2016 12:01:20 -0200 Message-Id: <1482847286-29933-12-git-send-email-adhemerval.zanella@linaro.org> In-Reply-To: <1482847286-29933-1-git-send-email-adhemerval.zanella@linaro.org> References: <1482847286-29933-1-git-send-email-adhemerval.zanella@linaro.org> This patch consolidates the semtimedop Linux implementation in only one default file, sysdeps/unix/sysv/linux/semtimedop.c. If tries to use the direct syscall if it is supported, otherwise will use the old ipc multiplex mechanism. Checked on x86_64, i686, powerpc64le, aarch64, and armhf. * sysdeps/unix/sysv/linux/alpha/syscalls.list (semtimedop): Remove. * sysdeps/unix/sysv/linux/arm/syscalls.list (semtimedop): Likewise. * sysdeps/unix/sysv/linux/generic/syscalls.list (semtimedop): Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list (semtimedop): Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list (semtimedop): Likewise. * sysdeps/unix/sysv/linux/microblaze/syscalls.list (semtimedop): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (semtimedop): Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list (semtimedop): Likewise. * sysdeps/unix/sysv/linux/m68k/semtimedop.S: Remove file. * sysdeps/unix/sysv/linux/s390/semtimedop.c: Reorganize headers and add a comment about s390 syscall difference from default one. * sysdeps/unix/sysv/linux/semtimedop.c (semtimedop): Use semtimedop syscall if it is defined. --- ChangeLog | 17 ++++++ sysdeps/unix/sysv/linux/alpha/syscalls.list | 1 - sysdeps/unix/sysv/linux/arm/syscalls.list | 1 - 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/m68k/semtimedop.S | 69 ----------------------- sysdeps/unix/sysv/linux/microblaze/syscalls.list | 1 - sysdeps/unix/sysv/linux/mips/mips64/syscalls.list | 1 - sysdeps/unix/sysv/linux/s390/semtimedop.c | 12 ++-- sysdeps/unix/sysv/linux/semtimedop.c | 13 +++-- sysdeps/unix/sysv/linux/x86_64/syscalls.list | 1 - 12 files changed, 31 insertions(+), 88 deletions(-) delete mode 100644 sysdeps/unix/sysv/linux/m68k/semtimedop.S diff --git a/sysdeps/unix/sysv/linux/alpha/syscalls.list b/sysdeps/unix/sysv/linux/alpha/syscalls.list index c20543a..8d3a042 100644 --- a/sysdeps/unix/sysv/linux/alpha/syscalls.list +++ b/sysdeps/unix/sysv/linux/alpha/syscalls.list @@ -4,7 +4,6 @@ shmat - osf_shmat i:ipi __shmat shmat oldshmctl EXTRA shmctl i:iip __old_shmctl shmctl@GLIBC_2.0 shmdt - shmdt i:s __shmdt shmdt shmget - shmget i:iii __shmget shmget -semtimedop - semtimedop i:ipip semtimedop sigstack - sigstack 2 sigstack diff --git a/sysdeps/unix/sysv/linux/arm/syscalls.list b/sysdeps/unix/sysv/linux/arm/syscalls.list index 3014db8..1b2de93 100644 --- a/sysdeps/unix/sysv/linux/arm/syscalls.list +++ b/sysdeps/unix/sysv/linux/arm/syscalls.list @@ -26,7 +26,6 @@ personality EXTRA personality Ei:i __personality personality shmat - shmat i:ipi __shmat shmat shmdt - shmdt i:s __shmdt shmdt shmget - shmget i:iii __shmget shmget -semtimedop - semtimedop i:ipip semtimedop # proper socket implementations: accept - accept Ci:iBN __libc_accept __accept accept diff --git a/sysdeps/unix/sysv/linux/generic/syscalls.list b/sysdeps/unix/sysv/linux/generic/syscalls.list index 54e1778..e12fb3e 100644 --- a/sysdeps/unix/sysv/linux/generic/syscalls.list +++ b/sysdeps/unix/sysv/linux/generic/syscalls.list @@ -1,7 +1,6 @@ # File name Caller Syscall name # args Strong name Weak names # SysV APIs -semtimedop - semtimedop i:ipip semtimedop shmget - shmget i:iii __shmget shmget shmctl - shmctl i:iip __shmctl shmctl shmat - shmat i:ipi __shmat shmat diff --git a/sysdeps/unix/sysv/linux/hppa/syscalls.list b/sysdeps/unix/sysv/linux/hppa/syscalls.list index 8fbcaba..a8fbc44 100644 --- a/sysdeps/unix/sysv/linux/hppa/syscalls.list +++ b/sysdeps/unix/sysv/linux/hppa/syscalls.list @@ -5,7 +5,6 @@ shmat - shmat i:ipi __shmat shmat shmctl - shmctl i:iip __shmctl shmctl shmdt - shmdt i:s __shmdt shmdt shmget - shmget i:iii __shmget shmget -semtimedop - semtimedop i:ipip semtimedop # proper socket implementations: accept - accept Ci:iBN __libc_accept __accept accept diff --git a/sysdeps/unix/sysv/linux/ia64/syscalls.list b/sysdeps/unix/sysv/linux/ia64/syscalls.list index b9271cc..eda4e4e 100644 --- a/sysdeps/unix/sysv/linux/ia64/syscalls.list +++ b/sysdeps/unix/sysv/linux/ia64/syscalls.list @@ -9,7 +9,6 @@ shmat - shmat i:ipi __shmat shmat shmctl - shmctl i:iip __shmctl shmctl shmdt - shmdt i:s __shmdt shmdt shmget - shmget i:iii __shmget shmget -semtimedop - semtimedop i:ipip semtimedop # proper socket implementations: accept - accept Ci:iBN __libc_accept __accept accept diff --git a/sysdeps/unix/sysv/linux/m68k/semtimedop.S b/sysdeps/unix/sysv/linux/m68k/semtimedop.S deleted file mode 100644 index b291070..0000000 --- a/sysdeps/unix/sysv/linux/m68k/semtimedop.S +++ /dev/null @@ -1,69 +0,0 @@ -/* Copyright (C) 2003-2016 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Andreas Schwab , 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 - . */ - -#include - -#define SYSOP_semtimedop 4 - -#define SVRSP 8 /* saved register space */ -#define PARMS 4+SVRSP /* space for 3 saved regs */ -#define SEMID PARMS -#define SOPS SEMID+4 -#define NSOPS SOPS+4 -#define TIMEOUT NSOPS+4 - - .text -ENTRY (semtimedop) - - /* Save registers. */ - move.l %d2, %a1 - move.l %d3, -(%sp) - cfi_adjust_cfa_offset (4) - move.l %d5, -(%sp) - cfi_adjust_cfa_offset (4) - cfi_register (%d2, %a1) - cfi_rel_offset (%d3, 0) - cfi_rel_offset (%d5, 4) - - move.l #SYSOP_semtimedop, %d1 - move.l SEMID(%sp), %d2 - move.l NSOPS(%sp), %d3 - move.l SOPS(%sp), %d5 - move.l TIMEOUT(%sp), %a0 - move.l #SYS_ify (ipc), %d0 - - trap #0 - - /* Restore registers. */ - move.l (%sp)+, %d5 - cfi_adjust_cfa_offset (-4) - cfi_restore (%d5) - move.l (%sp)+, %d3 - cfi_adjust_cfa_offset (-4) - cfi_restore (%d3) - move.l %a1, %d2 - cfi_restore (%d2) - - /* Check for error. */ - tst.l %d0 - jmi SYSCALL_ERROR_LABEL - - /* Successful; return the syscall's value. */ - ret - -PSEUDO_END (semtimedop) diff --git a/sysdeps/unix/sysv/linux/microblaze/syscalls.list b/sysdeps/unix/sysv/linux/microblaze/syscalls.list index 3da653d..d9afda0 100644 --- a/sysdeps/unix/sysv/linux/microblaze/syscalls.list +++ b/sysdeps/unix/sysv/linux/microblaze/syscalls.list @@ -11,4 +11,3 @@ personality EXTRA personality Ei:i __personality personality shmat - shmat i:ipi __shmat shmat shmdt - shmdt i:s __shmdt shmdt shmget - shmget i:iii __shmget shmget -semtimedop - semtimedop i:ipip semtimedop diff --git a/sysdeps/unix/sysv/linux/mips/mips64/syscalls.list b/sysdeps/unix/sysv/linux/mips/mips64/syscalls.list index 720db96..9cbbd38 100644 --- a/sysdeps/unix/sysv/linux/mips/mips64/syscalls.list +++ b/sysdeps/unix/sysv/linux/mips/mips64/syscalls.list @@ -5,4 +5,3 @@ shmat - shmat i:ipi __shmat shmat shmdt - shmdt i:s __shmdt shmdt shmget - shmget i:iii __shmget shmget -semtimedop - semtimedop i:ipip semtimedop diff --git a/sysdeps/unix/sysv/linux/s390/semtimedop.c b/sysdeps/unix/sysv/linux/s390/semtimedop.c index f226953..db43f00 100644 --- a/sysdeps/unix/sysv/linux/s390/semtimedop.c +++ b/sysdeps/unix/sysv/linux/s390/semtimedop.c @@ -16,12 +16,10 @@ License along with the GNU C Library; if not, see . */ -#include #include #include - #include -#include +#include /* Perform user-defined atomical operation of array of semaphores. */ @@ -29,6 +27,10 @@ int semtimedop (int semid, struct sembuf *sops, size_t nsops, const struct timespec *timeout) { - return INLINE_SYSCALL (ipc, 5, IPCOP_semtimedop, - semid, (int) nsops, timeout, sops); + /* The s390 sys_ipc variant has only five parameters instead of six + (as for default variant) and the only difference is the handling of + SEMTIMEDOP where on s390 the third parameter is used as a pointer + to a struct timespec where the generic variant uses fifth parameter. */ + return INLINE_SYSCALL_CALL (ipc, IPCOP_semtimedop, semid, nsops, timeout, + sops); } diff --git a/sysdeps/unix/sysv/linux/semtimedop.c b/sysdeps/unix/sysv/linux/semtimedop.c index 30ee7fe..4216dda 100644 --- a/sysdeps/unix/sysv/linux/semtimedop.c +++ b/sysdeps/unix/sysv/linux/semtimedop.c @@ -16,12 +16,10 @@ License along with the GNU C Library; if not, see . */ -#include #include #include - #include -#include +#include /* Perform user-defined atomical operation of array of semaphores. */ @@ -29,7 +27,10 @@ int semtimedop (int semid, struct sembuf *sops, size_t nsops, const struct timespec *timeout) { - return INLINE_SYSCALL (ipc, 6, IPCOP_semtimedop, - semid, (int) nsops, 0, sops, - timeout); +#ifdef __ASSUME_DIRECT_SYSVIPC_SYSCALLS + return INLINE_SYSCALL_CALL (semtimedop, semid, sops, nsops, timeout); +#else + return INLINE_SYSCALL_CALL (ipc, IPCOP_semtimedop, semid, nsops, 0, sops, + timeout); +#endif } diff --git a/sysdeps/unix/sysv/linux/x86_64/syscalls.list b/sysdeps/unix/sysv/linux/x86_64/syscalls.list index d17a186..573ed07 100644 --- a/sysdeps/unix/sysv/linux/x86_64/syscalls.list +++ b/sysdeps/unix/sysv/linux/x86_64/syscalls.list @@ -10,7 +10,6 @@ shmat - shmat i:ipi __shmat shmat shmctl - shmctl i:iip __shmctl shmctl shmdt - shmdt i:s __shmdt shmdt shmget - shmget i:iii __shmget shmget -semtimedop - semtimedop i:ipip semtimedop syscall_clock_gettime EXTRA clock_gettime Ei:ip __syscall_clock_gettime