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      1 /*
      2  * Copyright (c) 2003, 2004 Ulrich Drepper <drepper (at) redhat.com>
      3  * Copyright (c) 2005-2015 Dmitry V. Levin <ldv (at) altlinux.org>
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. The name of the author may not be used to endorse or promote products
     15  *    derived from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include "defs.h"
     30 
     31 #include DEF_MPERS_TYPE(struct_sigevent)
     32 
     33 #include <signal.h>
     34 typedef struct sigevent struct_sigevent;
     35 
     36 #include MPERS_DEFS
     37 
     38 #include "xlat/sigev_value.h"
     39 
     40 MPERS_PRINTER_DECL(void, print_sigevent)(struct tcb *tcp, const long addr)
     41 {
     42 	struct_sigevent sev;
     43 
     44 	if (umove_or_printaddr(tcp, addr, &sev))
     45 		return;
     46 
     47 	tprints("{");
     48 	if (sev.sigev_value.sival_ptr)
     49 		tprintf("sigev_value={int=%d, ptr=%#lx}, ",
     50 			sev.sigev_value.sival_int,
     51 			(unsigned long) sev.sigev_value.sival_ptr);
     52 
     53 	tprints("sigev_signo=");
     54 	switch (sev.sigev_notify) {
     55 	case SIGEV_SIGNAL:
     56 	case SIGEV_THREAD:
     57 	case SIGEV_THREAD_ID:
     58 		tprints(signame(sev.sigev_signo));
     59 		break;
     60 	default:
     61 		tprintf("%u", sev.sigev_signo);
     62 	}
     63 
     64 	tprints(", sigev_notify=");
     65 	printxval(sigev_value, sev.sigev_notify, "SIGEV_???");
     66 
     67 	switch (sev.sigev_notify) {
     68 	case SIGEV_THREAD_ID:
     69 #ifndef sigev_notify_thread_id
     70 		/*
     71 		 * _pad[0] is the _tid field which might not be
     72 		 * present in the userlevel definition of the struct.
     73 		 */
     74 # if defined HAVE_STRUCT_SIGEVENT__SIGEV_UN__PAD
     75 #  define sigev_notify_thread_id _sigev_un._pad[0]
     76 # elif defined HAVE_STRUCT_SIGEVENT___PAD
     77 #  define sigev_notify_thread_id __pad[0]
     78 # endif
     79 #endif
     80 
     81 #ifdef sigev_notify_thread_id
     82 		tprintf(", sigev_notify_thread_id=%d",
     83 			sev.sigev_notify_thread_id);
     84 #else
     85 # warning unfamiliar struct sigevent => incomplete SIGEV_THREAD_ID decoding
     86 #endif
     87 		break;
     88 	case SIGEV_THREAD:
     89 		tprints(", sigev_notify_function=");
     90 		printaddr((unsigned long) sev.sigev_notify_function);
     91 		tprints(", sigev_notify_attributes=");
     92 		printaddr((unsigned long) sev.sigev_notify_attributes);
     93 		break;
     94 	}
     95 	tprints("}");
     96 }
     97