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author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2016-10-25 20:38:37 -0200 |
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committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2016-12-28 20:28:56 -0200 |
commit | 356c0aabd0191cdd7287ccf1ec8bbaa4862a0823 (patch) | |
tree | ff179c3d7a7a1b95ff22ffccf88554ec2137b9df | |
parent | 1e5834c38a22bc6bee7bae4347f21baee5196724 (diff) | |
download | glibc-356c0aabd0191cdd7287ccf1ec8bbaa4862a0823.zip glibc-356c0aabd0191cdd7287ccf1ec8bbaa4862a0823.tar.gz glibc-356c0aabd0191cdd7287ccf1ec8bbaa4862a0823.tar.bz2 |
Consolidate Linux msgctl implementation
This patch consolidates the msgctl Linux implementation in only
one default file, sysdeps/unix/sysv/linux/msgctl.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
oldmsgctl.
* sysdeps/unix/sysv/linux/alpha/msgctl.c: Remove file.
* sysdeps/unix/sysv/linux/arm/msgctl.c: Likewise.
* sysdeps/unix/sysv/linux/microblaze/msgctl.c: Likewise.
* sysdeps/unix/sysv/linux/alpha/syscalls.list (oldmsgctl): Remove.
* sysdeps/unix/sysv/linux/generic/syscalls.list (msgctl): Likewise.
* sysdeps/unix/sysv/linux/hppa/syscalls.list (msgctl): Likewise.
* sysdeps/unix/sysv/linux/ia64/syscalls.list (msgctl): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (msgctl):
Likewise.
* sysdeps/unix/sysv/linux/x86_64/syscalls.list (msgctl): Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/msgctl.c: Use default
implementation.
* sysdeps/unix/sysv/linux/msgctl.c (__new_msgctl): Use msgctl syscall
if defined.
-rw-r--r-- | ChangeLog | 17 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/alpha/Makefile | 2 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/alpha/msgctl.c | 1 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/alpha/syscalls.list | 1 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/arm/msgctl.c | 33 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/generic/syscalls.list | 1 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/hppa/syscalls.list | 1 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/ia64/syscalls.list | 1 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/microblaze/msgctl.c | 1 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/mips/mips64/msgctl.c | 17 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/msgctl.c | 45 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list | 1 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/syscalls.list | 1 |
13 files changed, 46 insertions, 76 deletions
@@ -1,5 +1,22 @@ 2016-12-28 Adhemerval Zanella <adhemerval.zanella@linaro.org> + * sysdeps/unix/sysv/linux/alpha/Makefile (sysdeps_routines): Remove + oldmsgctl. + * sysdeps/unix/sysv/linux/alpha/msgctl.c: Remove file. + * sysdeps/unix/sysv/linux/arm/msgctl.c: Likewise. + * sysdeps/unix/sysv/linux/microblaze/msgctl.c: Likewise. + * sysdeps/unix/sysv/linux/alpha/syscalls.list (oldmsgctl): Remove. + * sysdeps/unix/sysv/linux/generic/syscalls.list (msgctl): Likewise. + * sysdeps/unix/sysv/linux/hppa/syscalls.list (msgctl): Likewise. + * sysdeps/unix/sysv/linux/ia64/syscalls.list (msgctl): Likewise. + * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (msgctl): + Likewise. + * sysdeps/unix/sysv/linux/x86_64/syscalls.list (msgctl): Likewise. + * sysdeps/unix/sysv/linux/mips/mips64/msgctl.c: Use default + implementation. + * sysdeps/unix/sysv/linux/msgctl.c (__new_msgctl): Use msgctl syscall + if defined. + * sysdeps/unix/sysv/linux/aarch64/ipc_priv.h: New file. * sysdeps/unix/sysv/linux/alpha/ipc_priv.h: Avoid included other arch definition and define its own. diff --git a/sysdeps/unix/sysv/linux/alpha/Makefile b/sysdeps/unix/sysv/linux/alpha/Makefile index 45941b0..c24dc2e 100644 --- a/sysdeps/unix/sysv/linux/alpha/Makefile +++ b/sysdeps/unix/sysv/linux/alpha/Makefile @@ -18,7 +18,7 @@ sysdep_routines += osf_select osf_gettimeofday osf_settimeofday \ osf_getrusage osf_wait4 # Support old ipc control -sysdep_routines += oldmsgctl oldsemctl oldshmctl +sysdep_routines += oldsemctl oldshmctl CFLAGS-ioperm.c = -Wa,-mev6 endif diff --git a/sysdeps/unix/sysv/linux/alpha/msgctl.c b/sysdeps/unix/sysv/linux/alpha/msgctl.c deleted file mode 100644 index d65a5b9..0000000 --- a/sysdeps/unix/sysv/linux/alpha/msgctl.c +++ /dev/null @@ -1 +0,0 @@ -#include <sysdeps/unix/sysv/linux/arm/msgctl.c> diff --git a/sysdeps/unix/sysv/linux/alpha/syscalls.list b/sysdeps/unix/sysv/linux/alpha/syscalls.list index 0c9efcb..f82c9da 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 -oldmsgctl EXTRA msgctl i:iip __old_msgctl msgctl@GLIBC_2.0 msgget - msgget i:ii __msgget msgget msgrcv - msgrcv Ci:ibnii __msgrcv msgrcv msgsnd - msgsnd Ci:ibni __msgsnd msgsnd diff --git a/sysdeps/unix/sysv/linux/arm/msgctl.c b/sysdeps/unix/sysv/linux/arm/msgctl.c deleted file mode 100644 index 83c6744..0000000 --- a/sysdeps/unix/sysv/linux/arm/msgctl.c +++ /dev/null @@ -1,33 +0,0 @@ -/* Copyright (C) 1995-2016 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 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 - <http://www.gnu.org/licenses/>. */ - -#include <errno.h> -#include <sys/msg.h> -#include <ipc_priv.h> -#include <sysdep.h> -#include <sys/syscall.h> - - -int -__new_msgctl (int msqid, int cmd, struct msqid_ds *buf) -{ - return INLINE_SYSCALL (msgctl, 3, msqid, cmd | __IPC_64, buf); -} - -#include <shlib-compat.h> -versioned_symbol (libc, __new_msgctl, msgctl, GLIBC_2_2); diff --git a/sysdeps/unix/sysv/linux/generic/syscalls.list b/sysdeps/unix/sysv/linux/generic/syscalls.list index 5993ab4..dea452b 100644 --- a/sysdeps/unix/sysv/linux/generic/syscalls.list +++ b/sysdeps/unix/sysv/linux/generic/syscalls.list @@ -2,7 +2,6 @@ # SysV APIs msgget - msgget i:ii __msgget msgget -msgctl - msgctl i:iip __msgctl msgctl msgrcv - msgrcv Ci:ibnii __msgrcv msgrcv msgsnd - msgsnd Ci:ibni __msgsnd msgsnd semget - semget i:iii __semget semget diff --git a/sysdeps/unix/sysv/linux/hppa/syscalls.list b/sysdeps/unix/sysv/linux/hppa/syscalls.list index a95c3dd..ead0e99 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 -msgctl - msgctl i:iip __msgctl msgctl msgget - msgget i:ii __msgget msgget msgrcv - msgrcv Ci:ibnii __msgrcv msgrcv msgsnd - msgsnd Ci:ibni __msgsnd msgsnd diff --git a/sysdeps/unix/sysv/linux/ia64/syscalls.list b/sysdeps/unix/sysv/linux/ia64/syscalls.list index 68b6c9a..8a66ca9 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 -msgctl - msgctl i:iip __msgctl msgctl msgget - msgget i:ii __msgget msgget msgrcv - msgrcv Ci:ibnii __msgrcv msgrcv msgsnd - msgsnd Ci:ibni __msgsnd msgsnd diff --git a/sysdeps/unix/sysv/linux/microblaze/msgctl.c b/sysdeps/unix/sysv/linux/microblaze/msgctl.c deleted file mode 100644 index d65a5b9..0000000 --- a/sysdeps/unix/sysv/linux/microblaze/msgctl.c +++ /dev/null @@ -1 +0,0 @@ -#include <sysdeps/unix/sysv/linux/arm/msgctl.c> diff --git a/sysdeps/unix/sysv/linux/mips/mips64/msgctl.c b/sysdeps/unix/sysv/linux/mips/mips64/msgctl.c index c4dc7ff..928c3dc 100644 --- a/sysdeps/unix/sysv/linux/mips/mips64/msgctl.c +++ b/sysdeps/unix/sysv/linux/mips/mips64/msgctl.c @@ -15,18 +15,11 @@ License along with the GNU C Library. If not, see <http://www.gnu.org/licenses/>. */ -#include <errno.h> -#include <sys/msg.h> -#include <ipc_priv.h> -#include <sysdep.h> +#include <shlib-compat.h> -int __msgctl (int msqid, int cmd, struct msqid_ds *buf); +#undef SHLIB_COMPAT +#define SHLIB_COMPAT(a, b, c) 0 -int -__msgctl (int msqid, int cmd, struct msqid_ds *buf) -{ - return INLINE_SYSCALL (msgctl, 3, msqid, cmd | __IPC_64, buf); -} +#define DEFAULT_VERSION GLIBC_2_0 -#include <shlib-compat.h> -versioned_symbol (libc, __msgctl, msgctl, GLIBC_2_0); +#include <sysdeps/unix/sysv/linux/msgctl.c> diff --git a/sysdeps/unix/sysv/linux/msgctl.c b/sysdeps/unix/sysv/linux/msgctl.c index e48fbb3..45bf350 100644 --- a/sysdeps/unix/sysv/linux/msgctl.c +++ b/sysdeps/unix/sysv/linux/msgctl.c @@ -16,17 +16,30 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#include <errno.h> #include <sys/msg.h> #include <ipc_priv.h> - #include <sysdep.h> -#include <string.h> -#include <sys/syscall.h> #include <shlib-compat.h> +#include <errno.h> + +#ifndef DEFAULT_VERSION +# define DEFAULT_VERSION GLIBC_2_2 +#endif + +int +__new_msgctl (int msqid, int cmd, struct msqid_ds *buf) +{ +#ifdef __ASSUME_DIRECT_SYSVIPC_SYSCALLS + return INLINE_SYSCALL_CALL (msgctl, msqid, cmd | __IPC_64, buf); +#else + return INLINE_SYSCALL_CALL (ipc, IPCOP_msgctl, msqid, cmd | __IPC_64, 0, + buf); +#endif +} +versioned_symbol (libc, __new_msgctl, msgctl, DEFAULT_VERSION); -#include <kernel-features.h> +#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2) struct __old_msqid_ds { struct __old_ipc_perm msg_perm; /* structure describing operation permission */ @@ -44,27 +57,15 @@ struct __old_msqid_ds __ipc_pid_t msg_lrpid; /* pid of last msgrcv() */ }; -/* Allows to control internal state and destruction of message queue - objects. */ -#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2) -int __old_msgctl (int, int, struct __old_msqid_ds *); -#endif -int __new_msgctl (int, int, struct msqid_ds *); - -#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2) int attribute_compat_text_section __old_msgctl (int msqid, int cmd, struct __old_msqid_ds *buf) { - return INLINE_SYSCALL (ipc, 5, IPCOP_msgctl, msqid, cmd, 0, buf); +#ifdef __ASSUME_DIRECT_SYSVIPC_SYSCALLS + return INLINE_SYSCALL_CALL (msgctl, msqid, cmd | __IPC_64, buf); +#else + return INLINE_SYSCALL_CALL (ipc, IPCOP_msgctl, msqid, cmd, 0, buf); +#endif } compat_symbol (libc, __old_msgctl, msgctl, GLIBC_2_0); #endif - -int -__new_msgctl (int msqid, int cmd, struct msqid_ds *buf) -{ - return INLINE_SYSCALL (ipc, 5, IPCOP_msgctl, msqid, cmd | __IPC_64, 0, buf); -} - -versioned_symbol (libc, __new_msgctl, msgctl, GLIBC_2_2); diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list b/sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list index 9f03d26..808cbbb 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list +++ b/sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list @@ -1,7 +1,6 @@ # File name Caller Syscall name # args Strong name Weak names # semaphore and shm system calls -msgctl - msgctl i:iip __msgctl msgctl msgget - msgget i:ii __msgget msgget msgrcv - msgrcv Ci:ibnii __msgrcv msgrcv msgsnd - msgsnd Ci:ibni __msgsnd msgsnd diff --git a/sysdeps/unix/sysv/linux/x86_64/syscalls.list b/sysdeps/unix/sysv/linux/x86_64/syscalls.list index 8aed2f4..4d19d75 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 -msgctl - msgctl i:iip __msgctl msgctl msgget - msgget i:ii __msgget msgget msgrcv - msgrcv Ci:ibnii __msgrcv msgrcv msgsnd - msgsnd Ci:ibni __msgsnd msgsnd |