42 lines
816 B
C
42 lines
816 B
C
/*
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* Copyright (c) 2008-2015 Dmitry V. Levin <ldv@altlinux.org>
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* Copyright (c) 2015-2018 The strace developers.
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* All rights reserved.
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*
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* SPDX-License-Identifier: LGPL-2.1-or-later
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*/
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#include "defs.h"
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#include <fcntl.h>
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#ifdef HAVE_SYS_SIGNALFD_H
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# include <sys/signalfd.h>
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#endif
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#include "xlat/sfd_flags.h"
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static int
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do_signalfd(struct tcb *tcp, int flags_arg)
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{
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/* NB: kernel requires arg[2] == NSIG_BYTES */
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printfd(tcp, tcp->u_arg[0]);
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tprints(", ");
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print_sigset_addr_len(tcp, tcp->u_arg[1], tcp->u_arg[2]);
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tprintf(", %" PRI_klu, tcp->u_arg[2]);
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if (flags_arg >= 0) {
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tprints(", ");
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printflags(sfd_flags, tcp->u_arg[flags_arg], "SFD_???");
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}
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return RVAL_DECODED | RVAL_FD;
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}
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SYS_FUNC(signalfd)
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{
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return do_signalfd(tcp, -1);
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}
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SYS_FUNC(signalfd4)
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{
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return do_signalfd(tcp, 3);
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}
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