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sys_process_lwpstatus.c revision 1.1 
      1 /*	$NetBSD: sys_process_lwpstatus.c,v 1.1 2020/01/04 03:46:19 kamil Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2019 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 __KERNEL_RCSID(0, "$NetBSD: sys_process_lwpstatus.c,v 1.1 2020/01/04 03:46:19 kamil Exp $");
     31 
     32 #include <sys/param.h>
     33 #include <sys/systm.h>
     34 #include <sys/errno.h>
     35 #include <sys/lwp.h>
     36 #include <sys/ptrace.h>
     37 
     38 
     39 void
     40 ptrace_read_lwpstatus(struct lwp *l, struct ptrace_lwpstatus *pls)
     41 {
     42 
     43 	KASSERT(l->l_lid == pls->pl_lwpid);
     44 
     45 	memcpy(&pls->pl_sigmask, &l->l_sigmask, sizeof(pls->pl_sigmask));
     46 	memcpy(&pls->pl_sigpend, &l->l_sigpend.sp_set, sizeof(pls->pl_sigpend));
     47 
     48 	if (l->l_name == NULL)
     49 		memset(&pls->pl_name, 0, PL_LNAMELEN);
     50 	else {
     51 		KASSERT(strlen(l->l_name) < PL_LNAMELEN);
     52 		strncpy(pls->pl_name, l->l_name, PL_LNAMELEN);
     53 	}
     54 
     55 #ifdef PTRACE_LWP_GETPRIVATE
     56 	pls->pl_private = (void *)(intptr_t)PTRACE_LWP_GETPRIVATE(l);
     57 #else
     58 	pls->pl_private = l->l_private;
     59 #endif
     60 }
     61 
     62 void
     63 process_read_lwpstatus(struct lwp *l, struct ptrace_lwpstatus *pls)
     64 {
     65 
     66 	pls->pl_lwpid = l->l_lid;
     67 
     68 	ptrace_read_lwpstatus(l, pls);
     69 }
     70