strace/signalfd.c
Dmitry V. Levin 30ac0627f2 signalfd4: fix flags decoding
* configure.ac (AC_CHECK_FUNCS): Add eventfd.
(AC_CHECK_HEADERS): Add sys/signalfd.h.
* signalfd.c: Include <fcntl.h>.
[HAVE_SYS_SIGNALFD_H] Include <sys/signalfd.h>.
Include "xlat/sfd_flags.h".
(do_signalfd): Use sfd_flags for flags decoding.
* xlat/sfd_flags.in: New file.
* tests/signalfd.c: Likewise.
* tests/signalfd.expected: Likewise.
* tests/signalfd.test: New test.
* tests/Makefile.am (check_PROGRAMS): Add signalfd.
(TESTS): Add signalfd.test.
(EXTRA_DIST): Add signalfd.expected.
* tests/.gitignore: Add signalfd.
2015-08-03 09:57:14 +00:00

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C

#include "defs.h"
#include <fcntl.h>
#ifdef HAVE_SYS_SIGNALFD_H
# include <sys/signalfd.h>
#endif
#include "xlat/sfd_flags.h"
static int
do_signalfd(struct tcb *tcp, int flags_arg)
{
/* NB: kernel requires arg[2] == NSIG / 8 */
printfd(tcp, tcp->u_arg[0]);
tprints(", ");
print_sigset_addr_len(tcp, tcp->u_arg[1], tcp->u_arg[2]);
tprintf(", %lu", tcp->u_arg[2]);
if (flags_arg >= 0) {
tprints(", ");
printflags(sfd_flags, tcp->u_arg[flags_arg], "SFD_???");
}
return RVAL_DECODED | RVAL_FD;
}
SYS_FUNC(signalfd)
{
return do_signalfd(tcp, -1);
}
SYS_FUNC(signalfd4)
{
return do_signalfd(tcp, 3);
}