Fix decoding of preadv syscall in case of short read

* io.c (SYS_FUNC(preadv)): Call tprint_iov_upto instead
of tprint_iov and specify syscall return value as a data size limit.
* NEWS: Mention it.
* tests/preadv.c (main): Add a test case for preadv short read.

Fix printing of negative offsets in preadv and pwritev syscalls

* io.c (print_llu_from_low_high_val): Rename to
print_lld_from_low_high_val, all callers changed.
Print value as a signed integer.
* tests/preadv.c: New file.
* tests/preadv.test: New test.
* tests/pwritev.c: New file.
* tests/pwritev.test: New test.
* tests/.gitignore: Add preadv and pwritev.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(preadv_CPPFLAGS, pwritev_CPPFLAGS): New variables.
(DECODER_TESTS): Add preadv.test and pwritev.test.

Fix printing of unreadable struct iovec

* io.c (tprint_iov_upto): If the first element of iovec array is
unreadable, print its address without array markup.
* tests/readv.c (main): Check it.

tests: factor out a part common to many simply organized test scripts

* tests/init.sh (run_strace_match_diff): New function.
* tests/acct.test: Rewrite using run_strace_match_diff.
* tests/aio.test: Likewise.
* tests/alarm.test: Likewise.
* tests/chmod.test: Likewise.
* tests/clock_nanosleep.test: Likewise.
* tests/clock_xettime.test: Likewise.
* tests/copy_file_range.test: Likewise.
* tests/creat.test: Likewise.
* tests/dup.test: Likewise.
* tests/dup2.test: Likewise.
* tests/dup3.test: Likewise.
* tests/epoll_create1.test: Likewise.
* tests/execveat-v.test: Likewise.
* tests/execveat.test: Likewise.
* tests/fchmod.test: Likewise.
* tests/fcntl.test: Likewise.
* tests/file_handle.test: Likewise.
* tests/flock.test: Likewise.
* tests/fork-f.test: Likewise.
* tests/ftruncate.test: Likewise.
* tests/ftruncate64.test: Likewise.
* tests/getcwd.test: Likewise.
* tests/getdents.test: Likewise.
* tests/getdents64.test: Likewise.
* tests/getrandom.test: Likewise.
* tests/getrusage.test: Likewise.
* tests/getxxid.test: Likewise.
* tests/inet-cmsg.test: Likewise.
* tests/init.sh: Likewise.
* tests/membarrier.test: Likewise.
* tests/mincore.test: Likewise.
* tests/mknod.test: Likewise.
* tests/mlock2.test: Likewise.
* tests/mmsg.test: Likewise.
* tests/nanosleep.test: Likewise.
* tests/open.test: Likewise.
* tests/openat.test: Likewise.
* tests/pselect6.test: Likewise.
* tests/readdir.test: Likewise.
* tests/readlink.test: Likewise.
* tests/readv.test: Likewise.
* tests/recvmsg.test: Likewise.
* tests/rename.test: Likewise.
* tests/renameat.test: Likewise.
* tests/rt_sigpending.test: Likewise.
* tests/rt_sigprocmask.test: Likewise.
* tests/rt_sigqueueinfo.test: Likewise.
* tests/rt_sigsuspend.test: Likewise.
* tests/rt_sigtimedwait.test: Likewise.
* tests/rt_tgsigqueueinfo.test: Likewise.
* tests/sched_get_priority_mxx.test: Likewise.
* tests/sched_xetaffinity.test: Likewise.
* tests/sched_xetparam.test: Likewise.
* tests/sched_xetscheduler.test: Likewise.
* tests/seccomp.test: Likewise.
* tests/select.test: Likewise.
* tests/sendfile.test: Likewise.
* tests/sendfile64.test: Likewise.
* tests/splice.test: Likewise.
* tests/statx.sh: Likewise.
* tests/sysinfo.test: Likewise.
* tests/syslog.test: Likewise.
* tests/tee.test: Likewise.
* tests/time.test: Likewise.
* tests/timer_create.test: Likewise.
* tests/timer_xettime.test: Likewise.
* tests/timerfd_xettime.test: Likewise.
* tests/times-fail.test: Likewise.
* tests/times.test: Likewise.
* tests/truncate.test: Likewise.
* tests/truncate64.test: Likewise.
* tests/umask.test: Likewise.
* tests/umount.test: Likewise.
* tests/umount2.test: Likewise.
* tests/userfaultfd.test: Likewise.
* tests/vmsplice.test: Likewise.
* tests/xet_robust_list.test: Likewise.
* tests/xetitimer.test: Likewise.
* tests/xetpgid.test: Likewise.
* tests/xetpriority.test: Likewise.
* tests/xettimeofday.test: Likewise.

tests: introduce $NAME

* tests/init.sh (NAME): New variable, defined to ${ME_%.test}.
(run_prog, match_awk, match_diff, match_grep): Replace ${ME_%.test}
with $NAME.
* tests/fcntl.test: Likewise.
* tests/fstat.test: Likewise.
* tests/mmap.test: Likewise.
* tests/net-y-unix.test: Likewise.
* tests/net-yy-inet.test: Likewise.
* tests/net-yy-unix.test: Likewise.
* tests/open.test: Likewise.
* tests/openat.test: Likewise.
* tests/poll.test: Likewise.
* tests/ppoll.test: Likewise.
* tests/readlink.test: Likewise.
* tests/select.test: Likewise.
* tests/statx.sh: Likewise.
* tests/uname.test: Likewise.

tests: move definitions of $OUT and $ERR to init.sh

As virtually every test defines either one or both of OUT and ERR
variables and these definitions are exactly the same, move definitions
of these variables from individual tests to init.sh.

* tests/init.sh (OUT, ERR): New variables.
* tests/ipc.sh: Remove initialization of OUT variable.
* tests/statx.sh: Likewise.
* tests/*.test: Remove initialization of OUT and ERR variables.

tests: simplify sendfile.test and sendfile64.test

Use the executable itself for input by default.

* tests/sendfile.c (main): Use av[0] instead of av[1] for input.
* tests/sendfile64.c (main): Likewise.
* tests/sendfile.test: Invoke run_prog without arguments.
* tests/sendfile64.test: Likewise.

open.test, openat.test: lift /proc requirement

While -P option needs /proc to match descriptors, it does not use
/proc to match pathnames.  As these tests do not need descriptor
match, the /proc requirement can be safely lifted.

* tests/open.test: Lift /proc/self/fd/ requirement.
* tests/openat.test: Likewise.

quotactl: add decoding of Q_GETNEXTQUOTA and Q_XGETNEXTQUOTA

* quota.c (if_nextdqblk): New structure.
(decode_cmd_data): Handle Q_GETNEXTQUOTA and Q_XGETNEXTQUOTA.

Update Q_* constants

* xlat/quotacmds.in: Add Q_GETNEXTQUOTA and Q_XGETNEXTQUOTA introduced
by linux kernel commits v4.6-rc1~65^2~9^2~5 and v4.6-rc1~65^2~9^2~6.

Update CLONE_* constants

* xlat/clone_flags.in: Rename CLONE_STOPPED to CLONE_NEWCGROUP.
The former was removed by linux kernel commit v2.6.38-rc1~217.
The latter was introduced by linux kernel commit v4.6-rc1~67^2~8.

Update BPF_MAP_TYPE_* constants

* xlat/bpf_map_types.in: Add BPF_MAP_TYPE_PERCPU_HASH,
BPF_MAP_TYPE_PERCPU_ARRAY, and BPF_MAP_TYPE_STACK_TRACE introduced by
linux kernel commits v4.6-rc1~91^2~326^2~5, v4.6-rc1~91^2~326^2~4, and
v4.6-rc1~91^2~212^2~1, respectively.

Update SO_* constants

* xlat/sockoptions.in: Add SO_CNX_ADVICE introduced by linux kernel
commit v4.6-rc1~91^2~176.

Update SEGV_* constants

* xlat/sigsegv_codes.in: Add SEGV_PKUERR introduced by linux kernel
commit v4.6-rc1~68^2~23.

avr32: wire up copy_file_range syscall

* linux/avr32/syscallent.h [325]: Add copy_file_range entry.

tests/uname.test: check abbreviated output, use print_quoted_string

* tests/uname.c (main): Use print_quoted_string to print
utsname members.  Add abbrev check.
* tests/uname.test: Add abbrev check.

faccessat.test: robustify against libcs invoking faccessat syscall on their own

* tests/faccessat.c (TMP_FILE): Rename to sample, change its value
to "faccessat.sample".
* tests/faccessat.test: Rewrite using openat.test.

openat.test: robustify against libcs invoking openat syscall on their own

* tests/openat.c (main): Rename fname to sample, change its value
to "openat.sample".
* tests/openat.test: Use -P option to filter out openat syscalls
made by libc and dynamic linker.

tests: add open.test

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

Update generic ioctl entries from linux 4.5

* linux/64/ioctls_inc.h: Update from linux v4.5 using ioctls_gen.sh.
* linux/32/ioctls_inc_align32.h: Likewise.
* linux/32/ioctls_inc_align64.h: Likewise.
* NEWS: Mention this.

maint: update for linux 4.5

* maint/ioctls_sym.sh: Update workarounds for drm/*_drm.h files.
Add workarounds for xen/gntdev.h and net/nfc/nci_core.h files.
Update path of saa6588.h and exynos-fimc.h files.

Fix decoding of device numbers in mknod and mknodat syscalls

* mknod.c (decode_mknod): Treat device number argument as unsigned int.
* tests/mknod.c: Include <sys/sysmacros.h> or <sys/mkdev.h>
for definition of makedev macro.
(main): Add a check for a character special file.

sparc64: fix decoding of mknod and mknodat syscalls for sparc personality

Remove remnants of solaris personality support in mknod parser
that resulted to sparc personality being decoded as old solaris
personality.  This complements commit v4.10-45-gdf4dd8b and fixes
commit v4.10-46-g588a90f.

* mknod.c (decode_mknod) [SPARC || SPARC64]: Remove.

tests: add openat.test

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

tests: add renameat.test

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

tests: add faccessat.test

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

tests: add creat.test

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

tests: add mknod.test

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

tests: add syslog.test

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

tests/scm_rights-fd.test: fix pathname regex

Pathname containing >, }, or non-printable characters was resulting
in failing of the test.

* tests/scm_rights-fd.test: Fix pathname regex and simplify things.

tests: add strace-r.test

* tests/strace-r.expected: New file.
* tests/strace-r.test: New test.
* tests/Makefile.am (MISC_TESTS): Add it.
(EXTRA_DIST): Add strace-r.expected.

tests: add strace-ttt.test

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

tests: add strace-tt.test

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

tests: add strace-t.test

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

tests: add strace-T.test

* tests/strace-T.expected: New file.
* tests/strace-T.test: New test.
* tests/Makefile.am (MISC_TESTS): Add it.
(EXTRA_DIST): Add strace-T.expected.

tests: split out tests of specific decoders

Split TESTS into three groups: tests of specific decoders, libunwind
tests, and all other tests.

* tests/Makefile.am (TESTS): Move attach-f-p.test, attach-p-cmd.test,
bexecve.test, count-f.test, count.test, detach-running.test,
detach-sleeping.test, detach-stopped.test, dumpio.test,
filter-unavailable.test, fork-f.test, ksysent.test, opipe.test,
pc.test, qual_syscall.test, redirect.test, restart_syscall.test,
strace-f.test, and vfork-f.test to MISC_TESTS.
Move remaining tests except $(LIBUNWIND_TESTS) to DECODER_TESTS.
Add $(DECODER_TESTS) and $(MISC_TESTS).

tests: add getcwd.test

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

tests: add print_quoted_string function to libtests

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

tests: add xetpriority.test

* resource.c (SYS_FUNC(getpriority), SYS_FUNC(setpriority)): Print
the second syscall argument using %d format.
* tests/xetpriority.c: New file.
* tests/xetpriority.test: New test.
* tests/.gitignore: Add xetpriority.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(TESTS): Add xetpriority.test.

tests: add flock.test

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

tests: add sched_xetscheduler.test

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

alpha: fix SOCK_DIAG_BY_FAMILY tests

This complements commit v4.9-368-g301c65c.

* tests/netlink_inet_diag.c (check_responses): Align "buf"
on sizeof(long) boundary.
* tests/netlink_unix_diag.c (check_responses): Likewise.

Update EPOLL* constants

* xlat/epollevents.in: Add EPOLLWAKEUP and EPOLLEXCLUSIVE.

tests: add count-f.test

* tests/count-f.c: New file.
* tests/count-f.expected: Likewise.
* tests/count-f.test: New test.
* tests/.gitignore: Add count-f.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(count_f_LDADD): New variable.
(EXTRA_DIST): Add count-f.expected.
(TESTS): Add count-f.test.

hppa: wire up copy_file_range syscall

* linux/hppa/syscallent.h [346]: Add copy_file_range entry.

tests: filter strace output in uname test

* tests/uname.test: Use uniq to filter strace output.

tests: add sched_xetparam.test

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

tests: add sched_get_priority_mxx.test

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

tests: add dup.test, dup2.test, and dup3.test

* tests/dup.c: New file.
* tests/dup.test: New test.
* tests/dup2.c: New file.
* tests/dup2.test: New test.
* tests/dup3.c: New file.
* tests/dup3.test: New test.
* tests/.gitignore: Add dup, dup2, and dup3.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(TESTS): Add dup.test, dup2.test, and dup3.test.

tests: add fchmod.test

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

tests: add acct.test

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

tests: add chmod.test

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

Reduce memory usage while managing tcbs allocation.

* strace.c (init):  Remove initial memory allocation for tcbtab.
(expand_tcbtab): Do initial memory allocation when tcbtabsize == 0.

Signed-off-by: Nahim El Atmani <nahim+dev@naam.me>
Reviewed-By: Gabriel Laskar <gabriel@lse.epita.fr>
Reported-by: haris iqbal <haris.phnx@gmail.com>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>

tests: add umask.test

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

tests: add rename.test

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

tests: add uname.test

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

mips: wire up copy_file_range syscall

* linux/mips/syscallent-n32.h [6324]: Add copy_file_range entry.
* linux/mips/syscallent-n64.h [5320]: Likewise.
* linux/mips/syscallent-o32.h [4360]: Likewise.

tests: add rt_sigsuspend.test

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

Print pid_t arguments of rt_sigqueueinfo and rt_tgsigqueueinfo as int

* signal.c (SYS_FUNC(rt_sigqueueinfo)): Print first syscall argument
using %d format.
(SYS_FUNC(rt_tgsigqueueinfo)): Print first and second syscall arguments
using %d format.
* tests/rt_tgsigqueueinfo.c: New file.
* tests/rt_tgsigqueueinfo.test: New test.
* tests/.gitignore: Add rt_tgsigqueueinfo.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(TESTS): Add rt_tgsigqueueinfo.test.

getrusage.test: fix build on x32

* tests/getrusage.c: Include <stdint.h>
(main): Print members of struct timeval using %ju format.

getrusage.test: check that getrusage parser does not access extra memory

Place struct rusage at the end of an allocated memory page followed by
an inaccessible page.

* tests/getrusage.c (main): Use tail_alloc.

tests: add getrusage.test

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

Print rt_sigtimedwait return value as a signal name

* signal.c (SYS_FUNC(rt_sigtimedwait)): Decode return value.
* tests/rt_sigtimedwait.c: New file.
* tests/rt_sigtimedwait.test: New test.
* tests/.gitignore: Add rt_sigtimedwait.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(TESTS): Add rt_sigtimedwait.test.

tests: add rt_sigprocmask.test

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

Fix corner cases of rt_sigpending syscall decoder

* signal (print_sigset_addr_len_limit): New function, cloned from
print_sigset_addr_len with added minimal length argument.
Treat length less than minimal length or greater than NSIG/8 as invalid.
Do not align length to 4-byte boundary.  Align destination buffer
to 4-byte boundary and initialize it with zeroes so that subsequent
call to sprintsigmask_n will not access uninitialized data.
(print_sigset_addr_len): Turn into a wrapper around
print_sigset_addr_len_limit with current_wordsize
as a minimal length argument.
(SYS_FUNC(rt_sigpending)): Call print_sigset_addr_len_limit
instead of print_sigset_addr_len with 1 as a minimal length argument.
* tests/rt_sigpending.c: New file.
* tests/rt_sigpending.test: New test.
* tests/.gitignore: Add rt_sigpending.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(TESTS): Add rt_sigpending.test.

Change unix_diag requests back to use full dump instead of exact match

Unfortunately, 64-bit linux kernel has a bug in matching inode numbers
greater than INT_MAX, so unix_diag exact match is not reliable.

This partially reverts commit 69bfc89770152033d4aa0bc5673fc46e65d89838.

* socketutils.c (unix_send_query): Add NLM_F_DUMP to nlmsg_flags,
remove initialization of udiag_cookie.
* tests/netlink_unix_diag.c (send_query): Remove "inode" argument,
add NLM_F_DUMP to nlmsg_flags, remove initialization of udiag_ino
and udiag_cookie.
(check_responses): Remove "inode" argument and its use.
(main): Remove invocation of inode_of_sockfd and passing of listening
socket inode to send_query and check_responses.

tests: avoid using cpp -dD

-dD is less portable across some peculiar preprocessors.

tests/Makefile.am (ksysent.h): Use cpp -dM instead of cpp -dD.

tests: add poll.test

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

Fix abbreviated output of poll and ppoll decoders

* poll.c (decode_poll_entering, decode_poll_exiting): Fix corner cases
of abbreviated output.
* tests/ppoll-v.expected: Update.
* tests/ppoll.expected: Update.
* tests/ppoll.test: Update.

Print unfetchable address in poll and ppoll decoders

* poll.c (decode_poll_entering): Replace umove call with
umove_or_printaddr.
(decode_poll_exiting): Print unfetchable address when umove call fails.

Print offsets in lseek and _llseek syscalls as signed integers

* lseek.c (SYS_FUNC(lseek)): Print offset using %lld format.
(SYS_FUNC(llseek)): Likewise.  Treat high and low components of offset
as unsigned long integers.
* tests/llseek.c (main): Check that negative offset is printed properly.
* tests/lseek.c (main): Likewise.

tests: add xetpgid.test

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

tests: add alarm.test

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

Replace printargs_lu and printargs_ld with printargs_u and printargs_d

* defs.h (printargs_lu): Rename to printargs_u.
(printargs_ld): Rename to printargs_d.
* syscall.c (printargs_lu): Rename to printargs_u.  Replace %lu with %u.
(printargs_ld): Rename to printargs_d.  Replace %ld with %d.
* linux/dummy.h (sys_getpgrp): Change to printargs.
(sys_alarm): Change to printargs_u.
(sys_getpgid, sys_getsid, sys_nice, sys_setpgid, sys_setpgrp,
sys_timer_delete, sys_timer_getoverrun): Change to printargs_d.

Change printargs_lu and printargs_ld to return RVAL_DECODED

* syscall.c (printargs_lu, printargs_ld): Return RVAL_DECODED.

redirect.test: fix the way how strace output is discarded

* tests/redirect.test: Disable tracing of syscalls, signals,
and exit status instead of redirecting strace output to /dev/null.

tests: extend coverage of struct iovec arrays

* tests/readv.c (main): Check decoding of empty, inaccessible,
and partially inaccessible iovec arrays.
* tests/readv.test: Update.

Implement dumping of vmsplice syscall

* syscall.c (dumpio): Add SEN_vmsplice.
* NEWS: Mention this.
* tests/vmsplice.c: New file.
* tests/vmsplice.test: New test.
* tests/.gitignore: Add vmsplice.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(TESTS): Add vmsplice.test.

tests: add tee.test

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

Fix printing of negative offsets in splice syscall

* io.c (SYS_FUNC(splice)): Use PRId64 instead of PRIu64 for printing
offsets.
* tests/splice.c: New file.
* tests/splice.test: New test.
* tests/.gitignore: Add splice.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(TESTS): Add splice.test.

Implement copy_file_range syscall decoding

* copy_file_range.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* linux/32/syscallent.h (copy_file_range): New entry.
* linux/64/syscallent.h: Likewise.
* linux/arm/syscallent.h: Likewise.
* linux/i386/syscallent.h: Likewise.
* linux/ia64/syscallent.h: Likewise.
* linux/m68k/syscallent.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.
* pathtrace.c (pathtrace_match): Add SEN_copy_file_range.
* NEWS: Mention new syscall parser.
* tests/copy_file_range.c: New file.
* tests/copy_file_range.test: New test.
* tests/.gitignore: Add copy_file_range.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(TESTS): Add copy_file_range.test.

Update fs *_MAGIC constants

* xlat/fsmagic.in: Add CGROUP2_SUPER_MAGIC and OVERLAYFS_SUPER_MAGIC.

Update IPV6_* constants

* xlat/sockipv6options.in: Add IPV6_HDRINCL.

Update SO_* constants

* xlat/sockoptions.in: Add SO_ATTACH_REUSEPORT_CBPF
and SO_ATTACH_REUSEPORT_EBPF.

Update MADV_* constants

* xlat/madvise_cmds.in: Add MAD_FREE.

tests: robustify execve and execveat tests

* tests/execve.c (main): Use one page gap between two mapped regions
for an address that is more likely to be not yet mapped.
* tests/execveat.c (main): Likewise.

tests: simplify execve test

* tests/execve.c (main): Simplify the test assuming that execve syscall
never returns ENOSYS.

Fix numbers of syscall arguments in syscall tables

This semi-automatic change brings syscall tables in sync with kernel's
include/linux/syscalls.h file.

* linux/aarch64/syscallent.h (recv): Fix nargs.
* linux/alpha/syscallent.h (sigaltstack, init_module,
sched_getscheduler, settimeofday): Likewise.
* linux/arm/syscallent.h (signal, pciconfig_iobase, msgrcv, msgctl,
shmat, shmdt, shmctl, semtimedop, get_mempolicy, set_mempolicy,
timerfd_create): Likewise.
* linux/bfin/syscallent.h (signal, delete_module): Likewise.
* linux/hppa/syscallent.h (init_module, munlockall, sched_getscheduler,
io_cancel, set_tid_address, listxattr, llistxattr, flistxattr,
removexattr, lremovexattr, fremovexattr): Likewise.
* linux/i386/syscallent.h (signal, mmap): Likewise.
* linux/ia64/syscallent.h (init_module, readv, writev,
sched_getscheduler): Likewise.
* linux/m68k/syscallent.h (signal, request_key): Likewise.
* linux/microblaze/syscallent.h (signal, clone, fstatfs64, vmsplice):
Likewise.
* linux/mips/syscallent-n32.h (getpgid, statfs, fstatfs, init_module,
delete_module): Likewise.
* linux/mips/syscallent-n64.h (getpgid, statfs, fstatfs, init_module,
delete_module): Likewise.
* linux/mips/syscallent-o32.h (signal, statfs, fstatfs, ioperm,
fstatfs64): Likewise.
* linux/powerpc/syscallent.h (signal, spu_run, spu_create): Likewise.
* linux/powerpc64/syscallent.h (signal, pread64, pwrite64, readahead,
fadvise64, lookup_dcookie, spu_run, spu_create, sync_file_range2,
fallocate, preadv, pwritev, fanotify_mark): Likewise.
* linux/s390/syscallent.h (signal, mmap, lookup_dcookie, ipc): Likewise.
* linux/s390x/syscallent.h (signal, ipc): Likewise.
* linux/sh/syscallent.h (signal, ipc, munlockall, fstatfs64, vmsplice):
Likewise.
* linux/sh64/syscallent.h (signal, ipc, msgrcv, msgctl, shmat, shmdt,
shmctl, fstatfs64, vmsplice): Likewise.
* linux/sparc/syscallent.h (ptrace, dup, signal, ipc): Likewise.
* linux/sparc64/syscallent.h (ptrace, dup, signal, pread64, pwrite64,
readahead, lookup_dcookie, fadvise64, fadvise64_64, ipc,
sync_file_range, fallocate, preadv, pwritev, fanotify_mark): Likewise.
* linux/x32/syscallent.h (64:recvmsg): Likewise.
* linux/xtensa/syscallent.h (mremap, futex, reboot, init_module,
delete_module, request_key, getcpu, ioprio_set, ioprio_get, utimensat,
futimesat, fchmodat, faccessat): Likewise.
* NEWS: Mention this fix.

s390: decode fadvise64 and fadvise64_64

* linux/s390/syscallent.h (fadvise64): Set sys_func.
(fadvise64_64): Set nargs and sys_func.

mips n64: use the most optimal parser for fadvise64 syscall

* linux/mips/syscallent-n64.h (fadvise64): Replace SEN(fadvise64_64)
with SEN(fadvise64).

ia64: decode fstatfs64 and statfs64

* linux/ia64/syscallent.h (fstatfs64, statfs64): Set nargs and sys_func.

alpha, ia64, mips, sh, sh64: fix the number of pipe syscall arguments

On alpha, ia64, mips, sh, sh64, sparc, and sparc64 architectures
pipe syscall does not take arguments.

* linux/alpha/syscallent.h (pipe): Change nargs to 0.
* linux/ia64/syscallent.h (pipe): Likewise.
* linux/mips/syscallent-n32.h (pipe): Likewise.
* linux/mips/syscallent-n64.h (pipe): Likewise.
* linux/mips/syscallent-o32.h (pipe): Likewise.
* linux/sh/syscallent.h (pipe): Likewise.
* linux/sh64/syscallent.h (pipe): Likewise.

alpha, ia64, mips, sh*, sparc*: fix error path decoding of pipe syscall

* net.c (do_pipe) [HAVE_GETRVAL2]: Remove.
Always call decode_pair_fd on exiting.
(SYS_FUNC(pipe)) [HAVE_GETRVAL2]: Call printpair_fd instead of do_pipe.

Fix pathtrace match for pipe2 syscall

* pathtrace.c (pathtrace_match): As pipe2 syscall has no descriptors
or paths to test, move SEN_pipe2 to the appropriate category.

avr32: wire up missing syscalls

* linux/avr32/syscallent.h [322..324]: Add userfaultfd, membarrier,
and mlock2 entries.

tests: check decoding of madvise, mlockall, mremap, and msync syscalls

* tests/mmap.c (main): Change output format from regexp to verbatim.
Add tests for madvise, mlockall, mremap, and msync syscalls.
* tests/mmap.test: Convert from match_grep to match_diff.
Add madvise, mlockall, mremap, and msync syscalls to syscall filter.

Simplify decoding of waitpid and wait4 syscalls

* wait.c (printwaitn): Replace "n" and "bitness" integer arguments
with a single print_rusage function pointer.  All callers updated.

waitid: print pid argument as int

* wait.c (SYS_FUNC(waitid)): As the type of second syscall argument
in the kernel is pid_t, print it as int.

waitid: always print 5th argument

* wait.c (SYS_FUNC(waitid)): Do not check for tcp->s_ent->nargs
as waitid syscall has 5 arguments.

socketutils: add const qualifier to variables

* socketutils.c (cache_and_print_inode_details): Make "details"
parameter const.
(print_sockaddr_by_inode_cached): Make "e" variable const.
(inet_send_query): Make struct nlmsghdr and struct inet_diag_req_v2
members const.  Make "msg" variable const.
(inet_parse_response): Make "data" parameter and diag_msg variable const.
(receive_responses): Make "h" and "rc" variables const.
(unix_send_query): Make struct nlmsghdr and struct unix_diag_req
members const.  Make "msg" variable const.
(unix_print): Make all parameters const.
(print_sockaddr_by_inode): Make proto_name parameter const.