diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/msgrcv.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/msgrcv.c | 28 |
1 files changed, 7 insertions, 21 deletions
diff --git a/sysdeps/unix/sysv/linux/msgrcv.c b/sysdeps/unix/sysv/linux/msgrcv.c index c4dd219097..6883a4cf23 100644 --- a/sysdeps/unix/sysv/linux/msgrcv.c +++ b/sysdeps/unix/sysv/linux/msgrcv.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1995-2016 Free Software Foundation, Inc. +/* Copyright (C) 1995-2018 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995. @@ -16,33 +16,19 @@ 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-cancel.h> -#include <sys/syscall.h> - -/* Kludge to work around Linux' restriction of only up to five - arguments to a system call. */ -struct ipc_kludge - { - void *msgp; - long int msgtyp; - }; - ssize_t __libc_msgrcv (int msqid, void *msgp, size_t msgsz, long int msgtyp, int msgflg) { - /* The problem here is that Linux' calling convention only allows up to - fives parameters to a system call. */ - struct ipc_kludge tmp; - - tmp.msgp = msgp; - tmp.msgtyp = msgtyp; - - return SYSCALL_CANCEL (ipc, IPCOP_msgrcv, msqid, msgsz, msgflg, &tmp); +#ifdef __ASSUME_DIRECT_SYSVIPC_SYSCALLS + return SYSCALL_CANCEL (msgrcv, msqid, msgp, msgsz, msgtyp, msgflg); +#else + return SYSCALL_CANCEL (ipc, IPCOP_msgrcv, msqid, msgsz, msgflg, + MSGRCV_ARGS (msgp, msgtyp)); +#endif } weak_alias (__libc_msgrcv, msgrcv) |