Do not sign-extend siginfo_t.si_syscall

* printsiginfo.c (print_si_info): Explicitly cast si_syscall member
of siginfo_t that has type "int" to "unsigned int", to avoid sign
extension when passed to syscall_name function.

Export print_seccomp_fprog for further use in parser of ptrace syscall

* defs.h (print_seccomp_fprog): New prototype.
* seccomp.c (print_seccomp_fprog): Remove "static" keyword.
Move printing of struct seccomp_fprog fields ...
(print_seccomp_filter): ... here.

tests: add munlockall.test

* tests/munlockall.c: New file.
* tests/munlockall.test: New test.
* tests/.gitignore: Add munlockall.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add munlockall.test.

tests: add link.test

* tests/link.c: New file.
* tests/link.test: New test.
* tests/.gitignore: Add link.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add link.test.

tests: check decoding and dumping of preadv2 and pwritev2 syscalls

* tests/preadv2-pwritev2.c: New file.
* tests/preadv2-pwritev2.test: New test.
* tests/.gitignore: Add preadv2-pwritev2.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add preadv2-pwritev2.

Implement decoding of preadv2 and pwritev2 syscalls

* io.c: Include "xlat/rwf_flags.h".
(do_preadv, do_pwritev, SYS_FUNC(preadv2), SYS_FUNC(pwritev2)):
New functions.
(SYS_FUNC(preadv)): Use do_preadv.
(SYS_FUNC(pwritev)): Use do_pwritev.
* linux/32/syscallent.h (preadv2, pwritev2): New entries.
* linux/64/syscallent.h: Likewise.
* linux/arm/syscallent.h: Likewise.
* linux/hppa/syscallent.h: Likewise.
* linux/i386/syscallent.h: Likewise.
* linux/ia64/syscallent.h: Likewise.
* linux/m68k/syscallent.h: Likewise.
* linux/mips/syscallent-n32.h: Likewise.
* linux/mips/syscallent-n64.h: Likewise.
* linux/mips/syscallent-o32.h: Likewise.
* linux/powerpc/syscallent.h: Likewise.
* linux/powerpc64/syscallent.h: Likewise.
* linux/s390/syscallent.h: Likewise.
* linux/s390x/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
* linux/sparc64/syscallent.h: Likewise.
* linux/x32/syscallent.h: Likewise.
* linux/x86_64/syscallent.h: Likewise.
* syscall.c (dumpio): Handle SEN_preadv2 and SEN_pwritev2.
* xlat/rwf_flags.in: New file.
* NEWS: Mention parsers of new syscalls.

tests: extend test coverage of xattr family syscalls

* tests/xattr.c: Check decoding of all xattr family syscalls.
* tests/xattr.test: Use run_strace_match_diff.
* tests/xattr.expected: Remove.
* tests/Makefile.am (EXTRA_DIST): Remove it.

tests: add print_quoted_memory function to libtests

* tests/print_quoted_string.c (print_quoted_memory): New function.
(print_quoted_string): Use it.
* tests/tests.h (print_quoted_memory): New prototype.

Fix corner cases of xattr family syscalls decoding

* xattr.c (print_xattr_val): Do not take insize into account, print it
as unsigned long.
Do not decode xattr values of size larger than XATTR_SIZE_MAX.
Use static buffer for fetching xattr values.
(print_xattr_list): Do not decode string when size is zero.

userfaultfd: Add ioctl tests

* tests/ioctl_uffdio.c: New file.
* tests/ioctl_uffdio.test: New test.
* tests/.gitignore: Add ioctl_uffdio.
* tests/Makefile.am (check_PROGRAMS):  Likewise.
(DECODER_TESTS): Add ioctl_uffdio.test.

Decode UFFDIO_* ioctls

Decode the ioctls associated with the userfaultfd fd.
Note that they tend to read from and also return result in it's data
structure.

* configure.ac (AC_CHECK_HEADERS): Add linux/userfaultfd.h.
* userfaultfd.c [HAVE_LINUX_USERFAULTFD_H]: Add ioctl decoder.
* defs.h (uffdio_ioctl): New prototype.
* ioctl.c (ioctl_decode) [HAVE_LINUX_USERFAULTFD_H]: Wire in
uffdio_ioctl.
* xlat/uffd_*.in: Create flag xlat for all the IOCTLs.

Update AX_CODE_COVERAGE

* m4/ax_code_coverage.m4: Update to serial 16.
* Makefile.am (CODE_COVERAGE_LCOV_OPTIONS): Remove.
(CODE_COVERAGE_GENHTML_OPTIONS): Update, add prefix.
(CODE_COVERAGE_BRANCH_COVERAGE): Set to 1.

strace-ff.test: fix race condition

* tests/strace-ff.test: Wait for completion of PR_SET_PTRACER command.

tests/epoll_pwait.c: fix for x32

* tests/epoll_pwait.c (main): Explicitly cast last syscall argument
to kernel_ulong_t.

strace-S.test: check "-S name"

* tests/strace-S.test: Add a check for "-c -S name" output.

Fix NULL dereference in "-S name" when syscall table has holes

* count.c (syscall_cmp): Do not pass NULL to strcmp.

strace-S.test: cleanup

* tests/strace-S.test: Rewrite using sed.

tests: add strace-S.test

* tests/strace-S.test: New test.
* tests/Makefile.am (MISC_TESTS): Add it.

strace-ff.test: check that -ff does not create unexpected output files

* tests/strace-ff.expected: New file.
* tests/Makefile.am (EXTRA_DIST): Add it.
* tests/strace-ff.test: Use it.  Check that no other output files
have been created.

tests: add strace-ff.test

* tests/strace-ff.test: New test.
* tests/Makefile.am (MISC_TESTS): Add it.

strace-V.test: cleanup

* tests/strace-V.test: Move config.h parser to a function.
Rename $OUT to $EXP, swap arguments passed to match_diff.

tests: add strace-V.test

* tests/strace-V.test: New test.
* tests/Makefile.am (MISC_TESTS): Add it.

tests: check decoding of epoll_pwait syscall

* tests/epoll_pwait.c: New file.
* tests/epoll_pwait.test: New test.
* tests/.gitignore: Add epoll_pwait.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add epoll_pwait.test.

Assume that sys/epoll.h exists

This header file was added in glibc-2.3.2,
so it's safe to assume its availability.

* configure.ac (AC_CHECK_HEADERS): Remove sys/epoll.h.
* epoll.c: Include <sys/epoll.h> unconditionally.
Compile [HAVE_SYS_EPOLL_H] code unconditionally.
* tests/epoll_ctl.c: Do not check for HAVE_SYS_EPOLL_H.
* tests/epoll_wait.c: Likewise.

Factorize send_query functions

* socketutils.c (send_query): New function.
(inet_send_query, unix_send_query): Use it.

tests: relax timings

Allow nanosleep(2) to spend 10% more time to make the test suite
more reliable on slow systems.

* tests/count.test: Treat 1.1 seconds as valid output.
* tests/strace-T.expected: Likewise.
* tests/strace-r.expected: Likewise.

tests/attach-f-p.c: increase timeouts

Increase timeouts to make the test more reliable on slow systems.

* tests/attach-f-p.c (its): Increase timeouts to 1, 2, and 3 seconds,
respectively.

Remove unused functions

* defs.h (umove_ulong_or_printaddr, umove_ulong_array_or_printaddr):
Remove.
* util.c (umove_ulong_or_printaddr, umove_ulong_array_or_printaddr):
Likewise.

v4l2.c: use print_array function

* v4l2.c (print_v4l2_ext_control, umoven_or_printaddr_ignore_syserror):
New functions.
(print_v4l2_ext_controls): Use them via print_array.

uid.c: use print_array function

* uid.c (print_gid): New function.
(print_groups): Use it via print_array.

seccomp.c: use print_array function

* seccomp.c (decode_filter, decode_seccomp_fprog): Remove.
(print_bpf_filter): New function.
(print_seccomp_fprog): Use it via print_array.
* tests/seccomp-filter-v.c (main): Update.

scsi.c: use print_array function

* scsi.c (print_uchar): New function.
(print_sg_io_buffer): Use it via print_array.

poll.c: use print_array function

* poll.c (print_pollfd): Change for use as print_array callback.
(decode_poll_entering): Use print_array.
* tests/poll.c: Update.
* tests/poll.test: Update.

numa.c: use print_array function

* numa.c (print_node): New function.
(print_nodemask): Use it via print_array.
(print_page_array, print_int_array): Remove.
(print_addr): New function.
(print_status, print_int): Change for use as print_array callback.
(SYS_FUNC(move_pages)): Use print_addr, print_int, and print_status
via print_array.
* tests/move_pages.c: Update.
* tests/set_mempolicy.c: Likewise.
* tests/set_mempolicy.test: Likewise.

mem.c: use print_array function

* mem.c [POWERPC] (print_protmap_entry): New function.
[POWERPC] (SYS_FUNC(subpage_prot)): Use it via print_array.

kexec.c: use print_array function

* kexec.c (print_seg): Change for use as print_array callback.
(print_kexec_segments): Use print_array.

ipc_sem.c: use print_array function

* ipc_sem.c (tprint_sembuf): Rename to print_sembuf, change signature
for use as print_array callback.
(tprint_sembuf_array): Use print_array.

io.c: use print_array function

* io.c (print_iovec_config): New structure.
(print_iovec): New function.
(tprint_iov_upto): Use print_array.
* tests/preadv.c (main): Update.
* tests/pwritev.c (print_iovec, main): Likewise.

epoll.c: use print_array function

* epoll.c (print_epoll_event): Change signature for use as print_array
callback, all users updated.
(print_epoll_event_array): Remove.
(epoll_wait_common): Change to use print_array instead
of print_epoll_event_array.

aio.c: use print_array function

* aio.c (print_iocbp): New function.
(SYS_FUNC(io_submit)): Use it via print_array.  Use widen_to_long
to process long int argument.
(print_io_event): Change to print struct io_event fetched elsewhere.
(SYS_FUNC(io_cancel)): Update use of print_io_event.
(SYS_FUNC(io_getevents)): Use print_io_event via print_array.
Use widen_to_long to print long int arguments.
* tests/aio.c (main): Check decoding of io_submit with negative "nr".

Introduce print_array function for consistent decoding of arrays

* defs.h (print_array): New prototype.
* util.c (print_array): New function.

Fix corner cases of ICMP_FILTER decoding

* net.c (print_icmp_filter): Print icmp_filter for any positive length.
* tests/net-icmp_filter.c: New file.
* tests/net-icmp_filter.test: New test.
* tests/.gitignore: Add net-icmp_filter.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add net-icmp_filter.test.

xlat: do not strip "1<<" prefix from xlat strings

* xlat/gen.sh (cond_xlat, gen_header): Do not strip "1<<" prefix
from xlat strings to fix incorrect output.
* tests/caps.awk: Update.

Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

tests/xstatfsx.c: fix mips o32 support

mips o32 differs from all other 32-bit architectures by defining
__kernel_fsid_t structure as an array of long ints.

* tests/xstatfsx.c (print_statfs): Explicitly cast elements
of PRINT_F_FSID array to unsigned int.

Mpersify VIDIOC_* ioctl parser

* v4l2.c: Mpersify arch-specific structures.
(v4l2_ioctl): Mpersify.
* tests/ioctl_v4l2.c: New file.
* tests/ioctl_v4l2.test: New test.
* tests/.gitignore: Add ioctl_v4l2.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add ioctl_v4l2.test.

Mpersify ioctl macros

As values of some ioctl macros differ between personalities, these
personality specific ioctl macros should be properly defined for
mpersified code.  Implement this by redefining personality specific
ioctl macros from ioctlent*.h for each file that includes MPERS_DEFS.

* Makefile.am (ioctl_macros_h): New variable.
(ioctl_macros%.h): New rule.
(BUILT_SOURCES, CLEANFILES): Add $(ioctl_macros_h).
(m%_type_defs.h): #include MPERS_$(mpers_PREFIX)IOCTL_MACROS.
* defs.h [HAVE_M32_MPERS] (MPERS_m32_IOCTL_MACROS): New macro.
[HAVE_MX32_MPERS] (MPERS_mx32_IOCTL_MACROS): Likewise.

Acked-by: Elvira Khabirova <lineprinter0@gmail.com>

Fix decoding of VIDIOC_* ioctls

* v4l2.c: Fix numerous bugs in decoding of VIDIOC_* ioctls.
* tests/ioctl.c (main): Update.

nsyscalls.test: add mips o32 support

Out-of-range syscalls looks differently on mips o32.

* tests/nsyscalls.c (main): Handle LINUX_MIPSO32.
* tests/nsyscalls.test: Trace syscall called "syscall" on mips.

Remove initialization of big holes in syscallent.h files

There is no need to explicitly initialize big holes after conversion
of syscallent.h files to use designated initializers.  For architectures
that have some data at the end of syscallent.h this initialization of
big holes is no-op, for others it just inflates the table unnecessarily.

* linux/arc/syscallent.h: Remove initialization of arch specific block
at the end of table.
* linux/metag/syscallent.h: Likewise.
* linux/nios2/syscallent.h: Likewise.
* linux/or1k/syscallent.h: Likewise.
* linux/tile/syscallent.h: Likewise.
* linux/tile/syscallent1.h: Likewise.
* linux/arm/syscallent.h: Remove explicit initialization of a big hole
before socket subcalls.
* linux/i386/syscallent.h: Likewise.
* linux/m68k/syscallent.h: Likewise.
* linux/mips/syscallent-n32.h: Likewise.
* linux/powerpc/syscallent.h: Likewise.
* linux/powerpc64/syscallent.h: Likewise.
* linux/s390/syscallent.h: Likewise.
* linux/s390x/syscallent.h: Likewise.
* linux/sh/syscallent.h: Likewise.
* linux/sh64/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
* linux/sparc64/syscallent.h: Likewise.
* linux/mips/syscallent-compat.h: Remove explicit initialization
of big holes between different mips ABIs.
* linux/mips/syscallent-n64.h: Remove explicit initialization
of big holes before socket subcalls and between different mips ABIs.
* linux/mips/syscallent-o32.h: Likewise.

xlat: make "1<<val" syntax work with 64-bit values

* xlat/gen.sh(cond_xlat, gen_header): Generate 1UUL<<val
for 1<<val syntax.

Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

Fix typo in XLAT_TYPE_PAIR

* xlat.h (XLAT_TYPE_PAIR): Take "type" parameter.

Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

Fix decoding of move_pages syscall

* numa.c (print_page_array, print_status, print_int, print_int_array):
New functions.
(SYS_FUNC(move_pages)): Rewrite using these functions.
* tests/move_pages.c: New file.
* tests/move_pages.test: New test.
* tests/.gitignore: Add move_pages.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add move_pages.test.

tests: check decoding of mbind syscall

* tests/mbind.c: New file.
* tests/mbind.test: New test.
* tests/.gitignore: Add mbind.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add mbind.test.

Change type of struct xlat.val to uint64_t

Some ioctls have flags fields that are 64-bit.  A 32-bit val means
these flags will never be matched or printed.

* xlat.h: Include <stdint.h>.
(struct xlat): Change type of val to uint64_t.

xlat: extend syntax with #val_type directive

When #val_type directive is encountered, gen.sh starts using
XLAT_TYPE/XLAT_TYPE_PAIR macros instead of XLAT/XLAT_PAIR,
with #val_type's argument as a type.

For example, "#val_type uint64_t" means values of type uint64_t.

* xlat/gen.sh (gen_header, print_xlat, print_xlat_pair):
Add val_type support.

xlat/gen.sh: prepare for adding #val_type directive support

This is essentially a no-op change that makes the following change
easier to read.

* xlat/gen.sh (print_xlat, print_xlat_pair): New functions.
(cond_xlat, gen_header): Use them.

Introduce XLAT_TYPE and XLAT_TYPE_PAIR macros

* xlat.h (XLAT_TYPE): New macro, similar to XLAT but casts
to the specified type instead of unsigned int.
(XLAT_TYPE_PAIR): New macro, similar to XLAT_PAIR but casts
to the specified type instead of unsigned int.

xlat: generate xlat pairs using new XLAT_PAIR macro

Before this change there were two forms of xlat entries: those that use XLAT
or XLAT_END macros, and others verbatim entries.  This change converts
the latter to use new XLAT_PAIR macro.

This is necessary for the upcoming change of xlat.val type.

* xlat.h (XLAT_PAIR): New macro.
* xlat/gen.sh (cond_xlat, gen_header): Use it.

Explicitly cast argument of XLAT macro to unsigned int

This is necessary for the upcoming change of xlat.val type.

* xlat.h (XLAT): Cast the argument to unsigned int.

Change type of {s,t}print_open_modes's argument to unsigned

As "flags" argument of sprint_open_modes and tprint_open_modes is
involved only in bit operations, change its type to unsigned.

* defs.h.c (sprint_open_modes, tprint_open_modes): Change type
to unsigned int.
* open.c (sprint_open_modes, tprint_open_modes): Likewise.

tests/remap_file_pages.c: fix for the upcoming change of xlat.val type

The "flags" argument of remap_file_page syscall has type "unsigned
long", so it is not correct to load most significant bits with garbage
ans assume they are going to be ignored.

* tests/remap_file_pages.c (main): Remove artificial garbage from flags.

Introduce printflags64 function

This is necessary for the upcoming change of xlat.val type.

* defs.h (printflags): Rename to printflags64, change type of integer
argument to uint64_t.
(printflags): New static inline function.
* util.c (printflags): Rename to printflags64, change type of integer
argument to uint64_t.  Print it using PRIx64 format.
Based on patch by Jeff Mahoney <jeffm@suse.com>.

Introduce sprintflags64 function

This is necessary for the upcoming change of xlat.val type.

* defs.h (sprintflags): Rename to sprintflags64, change type of integer
argument to uint64_t.
(sprintflags): New static inline function.
* util.c (sprintflags): Rename to sprintflags64, change type of integer
argument to uint64_t.  Print it using PRIx64 format.
Based on patch by Jeff Mahoney <jeffm@suse.com>.

printxvals: change type of integer argument to uint64_t

This is necessary for the upcoming change of xlat.val type.
All users of printxvals are already prepared for this change.

* defs.h (printxvals): Change type of integer argument to uint64_t.
* util.c (printxvals): Likewise.  Print it using PRIx64 format.
Patch by Jeff Mahoney <jeffm@suse.com>.

xlat_search: change type of integer argument to uint64_t

This is necessary for the upcoming change of xlat.val type.
All users of addflags are already prepared for this change.

* defs.h (xlat_search): Change type of integer argument to uint64_t.
* util.c (xlat_search): Likewise.  Pass it by pointer.
(xlat_bsearch_compare): Treat first argument as a pointer.
Patch by Jeff Mahoney <jeffm@suse.com>.

Introduce xlookup64 function

This is necessary for the upcoming change of xlat.val type.

* defs.h (xlookup): Rename to xlookup64, change type of integer argument
to uint64_t.
(xlookup): New static inline function.
* util.c (xlookup): Rename to xlookup64, change type of integer
argument to uint64_t.
Based on patch by Jeff Mahoney <jeffm@suse.com>.

addflags: change type of integer argument to uint64_t

This is necessary for the upcoming change of xlat.val type.
All users of addflags are already prepared for this change.

* defs.h (addflags): Change type of integer argument to uint64_t.
* util.c (addflags): Likewise.  Print it using PRIx64 format.
Based on patch by Jeff Mahoney <jeffm@suse.com>.

Introduce printxval64 wrapper

This is necessary for the upcoming change of xlat.val type.

* defs.h (printxval64): New static inline function.

Turn printxval macro into a static inline function

This is necessary for the upcoming change of xlat.val type.

* defs.h (printxval): Change to static inline function.

tests: check decoding of migrate_pages syscall

* tests/migrate_pages.c: New file.
* tests/migrate_pages.test: New test.
* tests/.gitignore: Add migrate_pages.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add migrate_pages.test.

Fix decoding of migrate_pages syscall

* numa.c (SYS_FUNC(migrate_pages)): Print syscall arguments
in the right order.

tests: check decoding of set_mempolicy syscall

* tests/set_mempolicy.c: New file.
* tests/set_mempolicy.test: New test.
* tests/.gitignore: Add set_mempolicy.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add set_mempolicy.test.

tests: check decoding of get_mempolicy syscall

* tests/get_mempolicy.c: New file.
* tests/get_mempolicy.test: New test.
* tests/.gitignore: Add get_mempolicy.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add get_mempolicy.test.

numa: fix decoding of nodemask arrays

* numa.c (get_nodes): Rewrite an rename to print_nodemask.
All callers updated.
(SYS_FUNC(mbind), SYS_FUNC(set_mempolicy), SYS_FUNC(get_mempolicy)):
Print a delimiter before nodemask argument.

Fix decoding of policy argument of get_mempolicy syscall

* numa.c (SYS_FUNC(get_mempolicy)): Print policy argument in square
brackets to indicate indirect access.

Fix decoding of pid_t argument of migrate_pages syscall

* numa.c (SYS_FUNC(migrate_pages)): Print pid_t syscall
argument using %d format.

tests: add printxval function to libtests

* tests/tests.h (printxval): New prototype.
* tests/printxval.c: New file.
* tests/Makefile.am  (libtests_a_SOURCES): Add it.

tests: check decoding of remap_file_pages syscall

* tests/remap_file_pages.c: New file.
* tests/remap_file_pages.test: New test.
* tests/.gitignore: Add remap_file_pages.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add remap_file_pages.test.

tests: add pause.test

* tests/pause.c: New file.
* tests/pause.test: New test.
* tests/.gitignore: Add pause.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add pause.test.

tests: add kill.test

* tests/kill.c: New file.
* tests/kill.test: New test.
* tests/.gitignore: Add kill.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add kill.test.

Fix decoding of pid_t arguments of kill and tgkill syscalls

* signal.c (SYS_FUNC(kill), SYS_FUNC(tgkill)): Print pid_t syscall
arguments using %d format.

tests: add mlock.test

* tests/mlock.c: New file.
* tests/mlock.test: New test.
* tests/.gitignore: Add mlock.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add mlock.test.

Move parsers of NUMA related syscalls to numa.c

* mem.c (get_nodes, SYS_FUNC(mbind), SYS_FUNC(set_mempolicy),
SYS_FUNC(get_mempolicy), SYS_FUNC(migrate_pages), SYS_FUNC(move_pages)):
Move ...
* numa.c: ... here.
* Makefile.am (strace_SOURCES): Add numa.c

tests/umovestr3.c: robustify against os specific issues

* tests/umovestr3.c (main): Create extra gap before unreadable page.

tests: extend test coverage of umovestr short read condition

* tests/umovestr3.c: New file.
* tests/umovestr3.test: New test.
* tests/.gitignore: Add umovestr3.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add umovestr3.test.

tests: check decoding of out-of-range syscalls

* tests/nsyscalls.c: New file.
* tests/nsyscalls.test: New test.
* tests/.gitignore: Add nsyscalls.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add nsyscalls.test.

Fix decoding of 3rd argument of getdents/getdents64 syscalls

* dirent.c (SYS_FUNC(getdents)): Always print 3rd syscall argument
as unsigned int.
* dirent64.c (SYS_FUNC(getdents64)): Likewise.
* tests/getdents.c (main): Check it.
* tests/getdents64.c (main): Likewise.

Fix decoding of LINUX_REBOOT_CMD_RESTART2 argument

* reboot.c (SYS_FUNC(reboot)): Cast numeric arguments to unsigned int.

.travis.yml: raise sleep delay

Previous sleep delay value seems to be not enough nowadays.

.travis.yml (SLEEP_A_BIT): Raise sleep delay.

Move definitions of MPOL_* constants to xlat files

* mem.c (MPOL_DEFAULT, MPOL_PREFERRED, MPOL_BIND, MPOL_INTERLEAVE):
Move to xlat/policies.in.
(MPOL_F_NODE, MPOL_F_ADDR): Move to xlat/mempolicyflags.in.
(MPOL_MF_STRICT, MPOL_MF_MOVE, MPOL_MF_MOVE_ALL): Move
to xlat/mbindflags.in.

tests: check decoding of renameat2 syscall

* tests/renameat2.c: New file.
* tests/renameat2.test: New test.
* tests/.gitignore: Add renameat2.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add renameat2.test.

Add default values for RENAME_* constants

* xlat/rename_flags.in: Add default values.

tests: check decoding of utimes syscall

* tests/utimes.c: New file.
* tests/utimes.test: New test.
* tests/.gitignore: Add utimes.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add utimes.test.

tests: check decoding of futimesat syscall

* tests/futimesat.c: New file.
* tests/futimesat.test: New test.
* tests/.gitignore: Add futimesat.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add futimesat.test.

tests: extend test coverage of mknod syscall

* mknod.c (main): Check more corner cases of mode_t parser.
* mknod.test: Update.

tests: add sched_yield.test

* tests/sched_yield.c: New file.
* tests/sched_yield.test: New test.
* tests/.gitignore: Add sched_yield.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add sched_yield.test.

tests: add sync.test

* tests/sync.c: New file.
* tests/sync.test: New test.
* tests/.gitignore: Add sync.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add sync.test.

tests: add mknodat.test

* tests/mknodat.c: New file.
* tests/mknodat.test: New test.
* tests/.gitignore: Add mknodat.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add mknodat.test.

tests: add unlink.test

* tests/unlink.c: New file.
* tests/unlink.test: New test.
* tests/.gitignore: Add unlink.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add unlink.test.

tests: add reboot.test

* tests/reboot.c: New file.
* tests/reboot.test: New test.
* tests/.gitignore: Add reboot.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add reboot.test.