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Fully emulate the Linux wait4(2) system call, including the __WCLONE 

flag (which is equivalent to our new WALTSIG).
This commit is contained in:
thorpej 1999-05-13 01:00:50 +00:00
parent 5d97669cfe
commit 053ec76d86
1 changed files with 16 additions and 3 deletions
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19
sys/compat/linux/common/linux_misc.c
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@ -1,4 +1,4 @@
/* $NetBSD: linux_misc.c,v 1.54 1999/05/05 20:01:03 thorpej Exp $ */
/* $NetBSD: linux_misc.c,v 1.55 1999/05/13 01:00:50 thorpej Exp $ */
/*-
* Copyright (c) 1995, 1998 The NetBSD Foundation, Inc.
@ -147,7 +147,7 @@ linux_sys_wait4(p, v, retval)
syscallarg(struct rusage *) rusage;
} */ *uap = v;
struct sys_wait4_args w4a;
int error, *status, tstat;
int error, *status, tstat, options, linux_options;
caddr_t sg;
if (SCARG(uap, status) != NULL) {
@ -156,9 +156,22 @@ linux_sys_wait4(p, v, retval)
} else
status = NULL;
linux_options = SCARG(uap, options);
options = 0;
if (linux_options &
~(LINUX_WAIT4_WNOHANG|LINUX_WAIT4_WUNTRACED|LINUX_WAIT4_WCLONE))
return (EINVAL);
if (linux_options & LINUX_WAIT4_WNOHANG)
options |= WNOHANG;
if (linux_options & LINUX_WAIT4_WUNTRACED)
options |= WUNTRACED;
if (linux_options & LINUX_WAIT4_WCLONE)
options |= WALTSIG;
SCARG(&w4a, pid) = SCARG(uap, pid);
SCARG(&w4a, status) = status;
SCARG(&w4a, options) = SCARG(uap, options);
SCARG(&w4a, options) = options;
SCARG(&w4a, rusage) = SCARG(uap, rusage);
if ((error = sys_wait4(p, &w4a, retval)))