diff options
Diffstat (limited to 'sys/compat/linux32/common/linux32_misc.c')
| -rw-r--r-- | sys/compat/linux32/common/linux32_misc.c | 54 |
1 files changed, 52 insertions, 2 deletions
diff --git a/sys/compat/linux32/common/linux32_misc.c b/sys/compat/linux32/common/linux32_misc.c index 82f92e022e7..41dd48f12eb 100644 --- a/sys/compat/linux32/common/linux32_misc.c +++ b/sys/compat/linux32/common/linux32_misc.c @@ -1,4 +1,4 @@ -/* $NetBSD: linux32_misc.c,v 1.32 2021/09/20 00:09:02 thorpej Exp $ */ +/* $NetBSD: linux32_misc.c,v 1.33 2021/09/20 02:20:03 thorpej Exp $ */ /*- * Copyright (c) 1995, 1998, 1999 The NetBSD Foundation, Inc. @@ -32,7 +32,7 @@ */ #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: linux32_misc.c,v 1.32 2021/09/20 00:09:02 thorpej Exp $"); +__KERNEL_RCSID(0, "$NetBSD: linux32_misc.c,v 1.33 2021/09/20 02:20:03 thorpej Exp $"); #include <sys/param.h> #include <sys/proc.h> @@ -380,3 +380,53 @@ linux32_sys_eventfd2(struct lwp *l, const struct linux32_sys_eventfd2_args *uap, return linux_sys_eventfd2(l, &ua, retval); } + +static inline off_t +linux32_hilo_to_off_t(unsigned long hi, unsigned long lo) +{ + return (((off_t)hi) << 32) | lo; +} + +int +linux32_sys_preadv(struct lwp *l, const struct linux32_sys_preadv_args *uap, + register_t *retval) +{ + /* { + syscallarg(int) fd; + syscallarg(const netbsd32_iovecp_t) iovp; + syscallarg(int) iovcnt; + syscallarg(netbsd32_u_long) off_lo; + syscallarg(netbsd32_u_long) off_hi; + } */ + struct netbsd32_preadv_args ua; + + SCARG(&ua, fd) = SCARG(uap, fd); + SCARG(&ua, iovp) = SCARG(uap, iovp); + SCARG(&ua, iovcnt) = SCARG(uap, iovcnt); + SCARG(&ua, PAD) = 0; + SCARG(&ua, offset) = linux32_hilo_to_off_t(SCARG(uap, off_hi), + SCARG(uap, off_lo)); + return netbsd32_preadv(l, &ua, retval); +} + +int +linux32_sys_pwritev(struct lwp *l, const struct linux32_sys_pwritev_args *uap, + register_t *retval) +{ + /* { + syscallarg(int) fd; + syscallarg(const netbsd32_iovecp_t) iovp; + syscallarg(int) iovcnt; + syscallarg(netbsd32_u_long) off_lo; + syscallarg(netbsd32_u_long) off_hi; + } */ + struct netbsd32_pwritev_args ua; + + SCARG(&ua, fd) = SCARG(uap, fd); + SCARG(&ua, iovp) = SCARG(uap, iovp); + SCARG(&ua, iovcnt) = SCARG(uap, iovcnt); + SCARG(&ua, PAD) = 0; + SCARG(&ua, offset) = linux32_hilo_to_off_t(SCARG(uap, off_hi), + SCARG(uap, off_lo)); + return netbsd32_pwritev(l, &ua, retval); +} |
