Introduce tprintf_comment and tprints_comment functions

* defs.h (tprintf_comment, tprints_comment): New prototypes.
* strace.c (tvprintf): New function.
(tprintf): Use it.
(tprintf_comment, tprints_comment): New functions.
* aio.c (tprint_lio_opcode): Use tprints_comment.
* dm.c (dm_decode_dm_target_spec, dm_decode_dm_target_deps,
dm_decode_dm_name_list, dm_decode_dm_target_versions,
dm_decode_dm_target_msg, dm_decode_string, dm_known_ioctl): Likewise.
* futex.c (SYS_FUNC(futex)): Likewise.
* perf.c (print_perf_event_attr): Likewise.
* seccomp.c (decode_bpf_code): Likewise.
* util.c (printxvals, printxval_searchn, printflags64): Likewise.
* btrfs.c (print_u64, btrfs_print_key_type, btrfs_print_objectid,
print_key_value_internal): Likewise.
(btrfs_ioctl): Use tprints_comment and tprintf_comment.
* dirent.c (SYS_FUNC(getdents)): Likewise.
* dirent64.c (SYS_FUNC(getdents64)): Likewise.
* execve.c (printargc): Use tprintf_comment.
* tests/btrfs.c (btrfs_test_get_dev_stats_ioctl,
btrfs_test_features_ioctls): Update expected output.

Make output of execve/execveat syscall parsers more structured

* execve.c (printargc): Always print the address, format the number
of variables as a comment.
* tests/execve.c: Update expected output.
* tests/execveat.c: Likewise.
* tests/qual_syscall.test: Likewise.
* tests/strace-r.expected: Likewise.
* tests/strace-t.test: Likewise.
* tests/strace-tt.test: Likewise.
* tests/strace-ttt.test: Likewise.
* tests/threads-execve.c: Likewise.
* tests/threads-execve.test: Likewise.

dm: fix diagnostics about misplaced parts of struct dm_ioctl

* dm.c (dm_decode_dm_target_spec, dm_decode_dm_target_deps,
dm_decode_dm_name_list, dm_decode_dm_target_versions,
dm_decode_dm_target_msg, dm_decode_string, dm_known_ioctl): Fix
diagnostics about various misplaced parts of struct dm_ioctl.
* tests/ioctl_dm.c: Update expected output.

print_mq_attr: fix typo

* print_mq_attr.c (printmqattr): Fix the last argument of printflags64.

tests: add faulty pointer check to time test

* tests/time.c (main): Add check for an inaccessible pointer.

tests: fix print_time_t_nsec usage in xstatx.c

* tests/xstatx.c (print_stat): Pass tv_nsec field through
zero_extend_signed_to_ull before feeding it to print_time_t_nsec.

tests: fix netlink_protocol on sparc

* tests/netlink_protocol.c (test_nlmsgerr): Do not access fields of an
unaligned structure, this makes architectures like sparc very unhappy.

util: return pointer to string literal directly in sprinttime

There is no sense to copy it to static buffer first.

* util.c (sprinttime): Just return "0", do not copy it to internal
buffer first.

tests: remove stat.sample creation from gen_tests.in

stat.sample is created by appropriate executables and never removed.

* tests/gen_tests.in (trace_fstat, trace_lstat, trace_stat,
trace_stat_like): Remove stat.sample creation.

tests: tabulate fstat.test

* tests/gen_tests.in (fstat): New entry.
(fstat64, oldfstat): Update.
* tests/fstat.test: Remove.
* tests/Makefile.am (DECODER_TESTS): Remove fstat.test.

Implement -e trace=%stat option

linux/*/syscallent*.h part is updated automatically by:

    sed -i '/statx/! s/TF|TSTA,/TF|TST|TSTA,/' linux/*/syscallent*.h

* sysent.h (TRACE_STAT): New macro.
* syscall.c: Alias LST to TRACE_STAT around syscallent.h inclusion.
* qualify.c (lookup_class): Add TRACE_STAT for "%stat".
* strace.1 (.SS Filtering): Add information about %stat syscall class.
* NEWS: Mention this change.
* linux/aarch64/syscallent.h (stat): Add TST flag.
* linux/ia64/syscallent.h: Likewise.
* linux/mips/syscallent-n32.h: Likewise.
* linux/mips/syscallent-n64.h: Likewise.
* linux/s390x/syscallent.h: Likewise.
* linux/x32/syscallent.h: Likewise.
* linux/x86_64/syscallent.h: Likewise.
* linux/arm/syscallent.h (oldstat, stat, stat64): Likewise.
* linux/bfin/syscallent.h: Likewise.
* linux/crisv10/syscallent.h: Likewise.
* linux/i386/syscallent.h: Likewise.
* linux/m68k/syscallent.h: Likewise.
* linux/microblaze/syscallent.h: Likewise.
* linux/mips/syscallent-o32.h: Likewise.
* linux/powerpc/syscallent.h: Likewise.
* linux/sh64/syscallent.h: Likewise.
* linux/sh/syscallent.h: Likewise.
* linux/avr32/syscallent.h (stat, stat64): Likewise.
* linux/hppa/syscallent.h: Likewise.
* linux/s390/syscallent.h: Likewise.
* linux/sparc64/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
* linux/xtensa/syscallent.h: Likewise.
* linux/powerpc64/syscallent.h (oldstat, stat): Likewise.
* linux/alpha/syscallent.h (osf_old_stat, osf_stat, stat, stat64): Likewise.
* linux/mips/syscallent-compat.h (bsd43_oldstat, bsd43_stat, posix_stat,
svr4_stat, svr4_xstat, sysv_stat, sysv_xstat): Likewise.
* tests/gen_tests.in (trace_stat): New entry.
* tests/trace_stat.in: New file.
* tests/Makefile.am (EXTRA_DIST): Add it.
* tests/ksysent.c (TST): New macro, defined to 0.
* tests/nsyscalls.c: Likewise.

Implement -e trace=%lstat option

linux/*/syscallent*.h part is updated automatically by:

    sed -i '/TSTA,.*lx\?stat/ s/TSTA,/TLST|&/' linux/*/syscallent*.h

* sysent.h (TRACE_LSTAT): New macro.
* syscall.c: Alias TLST to TRACE_LSTAT around syscallent.h inclusion.
* qualify.c (lookup_class): Add TRACE_LSTAT for "%lstat".
* strace.1 (.SS Filtering): Add information about %lstat syscall class.
* NEWS: Mention this change.
* linux/aarch64/syscallent.h (lstat): Likewise.
* linux/ia64/syscallent.h: Likewise.
* linux/mips/syscallent-n32.h: Likewise.
* linux/mips/syscallent-n64.h: Likewise.
* linux/s390x/syscallent.h: Likewise.
* linux/x32/syscallent.h: Likewise.
* linux/x86_64/syscallent.h: Likewise.
* linux/arm/syscallent.h (lstat, lstat64, oldlstat): Likewise.
* linux/bfin/syscallent.h: Likewise.
* linux/crisv10/syscallent.h: Likewise.
* linux/i386/syscallent.h: Likewise.
* linux/m68k/syscallent.h: Likewise.
* linux/microblaze/syscallent.h: Likewise.
* linux/mips/syscallent-o32.h: Likewise.
* linux/powerpc/syscallent.h: Likewise.
* linux/sh64/syscallent.h: Likewise.
* linux/sh/syscallent.h: Likewise.
* linux/sparc64/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
* linux/avr32/syscallent.h (lstat, lstat64): Likewise.
* linux/hppa/syscallent.h: Likewise.
* linux/powerpc64/syscallent.h: Likewise.
* linux/s390/syscallent.h: Likewise.
* linux/xtensa/syscallent.h: Likewise.
* linux/alpha/syscallent.h (lstat, lstat64, osf_lstat, osf_old_lstat): Likewise.
* linux/mips/syscallent-compat.h (bsd43_lstat, posix_lstat, svr4_lstat,
sysv_lstat): Likewise.
* tests/gen_tests.in (trace_lstat): New entry.
* tests/trace_lstat.in: New file.
* tests/Makefile.am (EXTRA_DIST): Add it.
* tests/ksysent.c (TLST): New macro, defined to 0.
* tests/nsyscalls.c: Likewise.

Implement -e trace=%fstat option

linux/*/syscallent*.h part is updated automatically by:

    sed -i -e '/TSTA.*fx\?stat/ s/TSTA,/TFST|&/' \
           -e 's/\(TD|TF|TFST|TSTA,\)[[:space:]]/\1/' linux/*/syscallent*.h

* sysent.h (TRACE_FSTAT): New macro.
* syscall.c: Alias TFST to TRACE_FSTAT around syscallent.h inclusion.
* qualify.c (lookup_class): Add TRACE_FSTAT for "%fstat".
* strace.1 (.SS Filtering): Add information about %fstat syscall class.
* NEWS: Mention this change.
* linux/32/syscallent.h (fstat64, fstatat64): Add TFST flag.
* linux/64/syscallent.h (fstat, newfstatat): Likewise.
* linux/aarch64/syscallent.h: Likewise.
* linux/ia64/syscallent.h: Likewise.
* linux/mips/syscallent-n32.h: Likewise.
* linux/mips/syscallent-n64.h: Likewise.
* linux/s390x/syscallent.h: Likewise.
* linux/x32/syscallent.h: Likewise.
* linux/x86_64/syscallent.h: Likewise.
* linux/arm/syscallent.h (fstat, fstat64, fstatat64, oldfstat): Likewise.
* linux/bfin/syscallent.h: Likewise.
* linux/crisv10/syscallent.h: Likewise.
* linux/i386/syscallent.h: Likewise.
* linux/m68k/syscallent.h: Likewise.
* linux/microblaze/syscallent.h: Likewise.
* linux/mips/syscallent-o32.h: Likewise.
* linux/powerpc/syscallent.h: Likewise.
* linux/sh64/syscallent.h: Likewise.
* linux/sh/syscallent.h: Likewise.
* linux/avr32/syscallent.h (fstat, fstat64, fstatat64): Likewise.
* linux/hppa/syscallent.h: Likewise.
* linux/s390/syscallent.h: Likewise.
* linux/sparc64/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
* linux/xtensa/syscallent.h: Likewise.
* linux/alpha/syscallent.h (fstat, fstat64, fstatat64, osf_fstat,
osf_old_fstat): Likewise.
* linux/powerpc64/syscallent.h (fstat, newfstatat, oldfstat): Likewise.
* linux/mips/syscallent-compat.h (bsd43_fstat, bsd43_oldfstat, posix_fstat,
svr4_fstat, sysv_fstat): Likewise.
* tests/gen_tests.in (trace_fstat): New entry.
* tests/trace_fstat.in: New file.
* tests/Makefile.am (EXTRA_DIST): Add it.
* tests/ksysent.c (TFST): New macro, defined to 0.
* tests/nsyscalls.c: Likewise.

Implement -e trace=%%stat option

linux/*/syscallent*.h part is updated automatically by:

    sed -i '/TSFA\|stat[iu]s/! s/,[[:space:]]\?\([[:space:]]*SEN(.*stat\)/|TSTA,\1/' \
        linux/*/syscallent*.h

* sysent.h (TRACE_STAT_LIKE): New macro.
* syscall.c: Alias TSTA to TRACE_STAT_LIKE around syscallent.h inclusion.
* qualify.c (lookup_class): Add TRACE_STAT_LIKE for "%%stat".
* strace.1 (.SS Filtering): Add information about %%stat syscall class.
* NEWS: Mention this change.
* linux/32/syscallent.h (fstat64, fstatat64, statx): Add TSTA flag.
* linux/64/syscallent.h (fstat, newfstatat, statx): Likewise.
* linux/aarch64/syscallent.h (fstat, lstat, newfstatat, stat): Likewise.
* linux/alpha/syscallent.h (fstat, fstat64, fstatat64, lstat, lstat64,
osf_fstat, osf_lstat, osf_old_fstat, osf_old_lstat, osf_old_stat, osf_stat,
stat, stat64): Likewise.
* linux/arm/syscallent.h (fstat, fstat64, fstatat64, lstat, lstat64, oldfstat,
oldlstat, oldstat, stat, stat64, statx): Likewise.
* linux/avr32/syscallent.h (fstat, fstat64, fstatat64, lstat, lstat64, stat,
stat64): Likewise.
* linux/bfin/syscallent.h (fstat, fstat64, fstatat64, lstat, lstat64,
oldfstat, oldlstat, oldstat, stat, stat64): Likewise.
* linux/crisv10/syscallent.h (fstat, fstat64, fstatat64, lstat, lstat64,
oldfstat, oldlstat, oldstat, stat, stat64): Likewise.
* linux/hppa/syscallent.h (fstat, fstat64, fstatat64, lstat, lstat64, stat,
stat64): Likewise.
* linux/i386/syscallent.h (fstat, fstat64, fstatat64, lstat, lstat64, oldfstat,
oldlstat, oldstat, stat, stat64, statx): Likewise.
* linux/ia64/syscallent.h (fstat, lstat, newfstatat, stat): Likewise.
* linux/m68k/syscallent.h (fstat, fstat64, fstatat64, lstat, lstat64, oldfstat,
oldlstat, oldstat, stat, stat64, statx): Likewise.
* linux/microblaze/syscallent.h (fstat, fstat64, fstatat64, lstat, lstat64,
oldfstat, oldlstat, oldstat, stat, stat64): Likewise.
* linux/mips/syscallent-compat.h (bsd43_fstat, bsd43_lstat, bsd43_oldfstat,
bsd43_oldstat, bsd43_stat, posix_fstat, posix_lstat, posix_stat, svr4_fstat,
svr4_fxstat, svr4_lstat, svr4_lxstat, svr4_stat, svr4_xstat, sysv_fstat,
sysv_fxstat, sysv_lstat, sysv_lxstat, sysv_stat, sysv_xstat): Likewise.
* linux/mips/syscallent-n32.h (fstat, lstat, newfstatat, stat, statx): Likewise.
* linux/mips/syscallent-n64.h (fstat, lstat, newfstatat, stat, statx): Likewise.
* linux/mips/syscallent-o32.h (fstat, fstat64, fstatat64, lstat, lstat64,
oldfstat, oldlstat, oldstat, stat, stat64, statx): Likewise.
* linux/powerpc64/syscallent.h (fstat, lstat, newfstatat, oldfstat, oldlstat,
oldstat, stat): Likewise.
* linux/powerpc/syscallent.h (fstat, fstat64, fstatat64, lstat, lstat64,
oldfstat, oldlstat, oldstat, stat, stat64, statx): Likewise.
* linux/s390/syscallent.h (fstat, fstat64, fstatat64, lstat, lstat64, stat,
stat64, statx): Likewise.
* linux/s390x/syscallent.h (fstat, lstat, newfstatat, stat, statx): Likewise.
* linux/sh64/syscallent.h (fstat, fstat64, fstatat64, lstat, lstat64, oldfstat,
oldlstat, oldstat, stat, stat64): Likewise.
* linux/sh/syscallent.h (fstat, fstat64, fstatat64, lstat, lstat64, oldfstat,
oldlstat, oldstat, stat, stat64): Likewise.
* linux/sparc64/syscallent.h (fstat, fstat64, fstatat64, lstat, lstat64,
oldlstat, stat, stat64): Likewise.
* linux/sparc/syscallent.h (fstat, fstat64, fstatat64, lstat, lstat64,
oldlstat, stat, stat64): Likewise.
* linux/x32/syscallent.h (fstat, lstat, newfstatat, stat, statx): Likewise.
* linux/x86_64/syscallent.h (fstat, lstat, newfstatat, stat, statx): Likewise.
* linux/xtensa/syscallent.h (fstat, fstat64, fstatat64, lstat, lstat64, stat,
stat64, statx): Likewise.
* tests/gen_tests.in (trace_stat_like): New entry.
* tests/trace_stat_like.in: New file.
* tests/Makefile.am (EXTRA_DIST): Add it.
* tests/ksysent.c (TSTA): New macro, defined to 0.
* tests/nsyscalls.c: Likewise.

qualify: add syntax for optional non-matching syscall qualification

It may be useful in case syscall is not present on the target
architecture.

* qualify.c (qualify_syscall): Add ignore_fail flag, set it to true
in case syscall qualification is led by a question mark(s).
* strace.1 (.SS Filtering): Document ability to use question marks
in syscall qualification.

linux/alpha/syscallent.h: add TSFA flag to osf_getfsstat

In accordance with [1].

[1] https://www.freebsd.org/cgi/man.cgi?query=getfsstat&sektion=2

* linux/alpha/syscallent.h (osf_getfsstat): Add TSFA flag.
* strace.1 (.SS Filtering) <%%statfs>: Update equivalent regexp.

linux/mips/syscallent-compat.h: add some TD/TF flags for *stat* variants

*xstat syscalls are, according to [1], like their *stat counterparts,
but with additional argument with fixed value.

[1] http://math-atlas.sourceforge.net/devel/assembly/mipsabi32.pdf

* linux/mips/syscallent-compat.h (*_xstat, *_lxstat, bsd43_oldstat):
Add TF flag.
(*_fxstat, bsd43_oldfstat): Add TD flag.

Implement -e trace=%%statfs option

linux/*/syscallent*.h part is updated automatically by:

    sed -i 's/\(TSF\),[[:space:]]\?/\1|TSFA,/' linux/*/syscallent*.h
    sed -i 's/\(TFSF\),/\1|TSFA,/' linux/*/syscallent*.h
    sed -i 's/0\(,.*ustat\)/TSFA\1/' linux/*/syscallent*.h

* sysent.h (TRACE_STATFS_LIKE): New macro.
* syscall.c: Alias TSFA to TRACE_STATFS_LIKE around syscallent.h inclusion.
* qualify.c (lookup_class): Add SCHED_STATFS_LIKE for "%%statfs".
* strace.1 (.SS Filtering): Add information about %%statfs syscall class.
* NEWS: Mention this change.
* linux/32/syscallent.h (statfs64, fstatfs64): Add TSFA flag.
* linux/64/syscallent.h (statfs, fstatfs): Likewise.
* linux/aarch64/syscallent.h (statfs, fstatfs, ustat): Likewise.
* linux/mips/syscallent-n64.h: Likewise.
* linux/x32/syscallent.h: Likewise.
* linux/x86_64/syscallent.h: Likewise.
* linux/arm/syscallent.h (statfs, statfs64, fstatfs, fstatfs64, ustat):
Likewise.
* linux/avr32/syscallent.h: Likewise.
* linux/bfin/syscallent.h: Likewise.
* linux/crisv10/syscallent.h: Likewise.
* linux/hppa/syscallent.h: Likewise.
* linux/i386/syscallent.h: Likewise.
* linux/ia64/syscallent.h: Likewise.
* linux/m68k/syscallent.h: Likewise.
* linux/microblaze/syscallent.h: Likewise.
* linux/mips/syscallent-n32.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/sh/syscallent.h: Likewise.
* linux/sh64/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
* linux/sparc64/syscallent.h: Likewise.
* linux/xtensa/syscallent.h: Likewise.
* linux/alpha/syscallent.h (osf_statfs, osf_statfs64, statfs,
ofs_fstatfs, osf_fstatfs64, ustat): Likewise.
* linux/mips/syscallent-compat.h (*_statfs, *_statvfs, *_fstatfs): Likewise.
* tests/gen_tests.in (trace_statfs_like): New entry.
* tests/trace_statfs_like.in: New file.
* tests/Makefile.am (EXTRA_DIST): Add it.
* tests/ksysent.c (TSFA): New macro, defined to 0.
* tests/nsyscalls.c: Likewise.

Implement -e trace=%fstatfs option

linux/*/syscallent*.h part is updated automatically by:

    sed -i 's/TD,[[:space:]]\([[:space:]]*SEN.*[_"]fstatv\?fs\)/TD|TFSF,\1/' \
           linux/*/syscallent*.h

* sysent.h (TRACE_FSTATFS): New macro.
* syscall.c: Alias TFSF to TRACE_FSTATFS around syscallent.h inclusion.
* qualify.c (lookup_class): Add SCHED_FSTATFS for "%fstatfs".
* strace.1 (.SS Filtering): Add information about %fstatfs syscall class.
* NEWS: Mention this change.
* linux/32/syscallent.h (fstatfs64): Add TFSF flag.
* linux/64/syscallent.h (fstatfs): Likewise.
* linux/aarch64/syscallent.h: Likewise.
* linux/mips/syscallent-n64.h: Likewise.
* linux/x32/syscallent.h: Likewise.
* linux/x86_64/syscallent.h: Likewise.
* linux/arm/syscallent.h (fstatfs, fstatfs64):
Likewise.
* linux/avr32/syscallent.h: Likewise.
* linux/bfin/syscallent.h: Likewise.
* linux/crisv10/syscallent.h: Likewise.
* linux/hppa/syscallent.h: Likewise.
* linux/i386/syscallent.h: Likewise.
* linux/ia64/syscallent.h: Likewise.
* linux/m68k/syscallent.h: Likewise.
* linux/microblaze/syscallent.h: Likewise.
* linux/mips/syscallent-n32.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/sh/syscallent.h: Likewise.
* linux/sh64/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
* linux/sparc64/syscallent.h: Likewise.
* linux/xtensa/syscallent.h: Likewise.
* linux/alpha/syscallent.h (ofs_fstatfs, osf_fstatfs64): Likewise.
* linux/mips/syscallent-compat.h (*_fstatfs, *_fstatvfs): Likewise.
* tests/gen_tests.in (trace_fstatfs): New entry.
* tests/trace_fstatfs.in: New file.
* tests/Makefile.am (EXTRA_DIST): Add it.
* tests/ksysent.c (TFSF): New macro, defined to 0.
* tests/nsyscalls.c: Likewise.

sysent.h: format syscall flag macros

Add some tabulation and leading zeroes to the values.

tests: tabulate sched.test

Rewrite sched.test using test_trace_expr().

* tests/gen_tests.in (sched): New entry.
* tests/sched.in: New file, derived from a set of tests in sched.test.
* tests/sched.test: Remove.
* tests/Makefile.am (DECODER_TESTS): Remove sched.test.
(EXTRA_DIST): Add sched.in.

tests: tabulate regex.test

Rewrite regex.test using test_trace_expr().

* tests/gen_tests.in (regex): New entry.
* tests/regex.in: New file, derived from a set of tests in regex.test.
* tests/regex.test: Remove.
* tests/Makefile.am (DECODER_TESTS): Remove regex.test.
(EXTRA_DIST): Add regex.in.

tests: tabulate clock.test

Rewrite clock.test using test_trace_expr().

* tests/gen_tests.in (clock): New entry.
* tests/clock.in: New file, derived from a set of tests in clock.test.
* tests/clock.test: Remove.
* tests/Makefile.am (DECODER_TESTS): Remove clock.test.
(EXTRA_DIST): Add clock.in.

tests: tabulate trace_statfs.test

Rewrite trace_statfs.test using test_trace_expr().

* tests/gen_tests.in (trace_statfs): New entry.
* tests/trace_statfs.in: New file, derived from a set of tests
in trace_statfs.test.
* tests/trace_statfs.test: Remove.
* tests/Makefile.am (DECODER_TESTS): Remove trace_statfs.test.
(EXTRA_DIST): Add trace_statfs.in.

tests/init.sh: add helpers for running set of programs

This introduces three new helpers:
prog_set_subtract subtracts one program set from another,
test_pure_prog_set runs strace check on a set of programs,
test_trace_expr tests trace expressions.

* tests/init.sh (prog_set_subtract, test_pure_prog_set,
test_trace_expr): New functions.

tests: extend gen_tests.sh further

* tests/gen_tests.sh: Extend support of arbitrary rules.

tests/xstat.c: do not remove sample file after test

As tests are executed in separate directories now, there is no need to
remove sample file.

* tests/xstat.c (main): Remove unlink calls.

tests: use fixed name for stat tests sample file

As tests are now run in separate directories.

* tests/xstatx.c: Use fixed "stat.sample" name for sample file.
* tests/fstat.test: Use it as an argument for -P option.
* tests/gen_tests.in (fstat64, lstat, lstat64, newfstatat, oldlstat,
oldstat, stat, stat64, statx): Likewise.

Derive copyright year from the git commit date

This solves problems like the need to update test suite on every
New Year's Eve.

* Makefile.am (dist-hook): Generate .year.
* copyright-year-gen: New file.
* configure.ac (copyright_year): New m4 variable, defined as the output
of copyright-year-gen script.
(AC_COPYRIGHT): Use it.
(COPYRIGHT_YEAR): New output variable and preprocessor macro.
* strace.c (print_version): Use COPYRIGHT_YEAR.
* strace.spec.in (%prep): Save the value of COPYRIGHT_YEAR autoconf
variable to .year file.
* tests/strace-V.test (config_year): New variable, derived from config.h.
Add sanity checks for $config_year and use it in expected output.

Reported-by: Andreas Schwab <schwab@suse.de>

tests: move /proc/ checks from scripts to executables

Move most of /proc/self/task/ and /proc/self/fd/ checks from scripts
to xecutables.

* tests/attach-f-p.test: Move /proc/self/task/ check ...
* tests/attach-f-p-cmd.c (main): ... here.
* tests/fstat.test: Move /proc/self/fd/ check ...
* tests/xstatx.c (main): ... here.
* tests/net-y-unix.test: Move /proc/self/fd/ check ...
* tests/net-y-unix.c (main): ... here.
* tests/net-yy-inet.test: Move /proc/self/fd/ check ...
* tests/net-yy-inet.c (main): ... here.
* tests/net-yy-netlink.test: Move /proc/self/fd/ check ...
* tests/net-yy-netlink.c (main): ... here.
* tests/net-yy-unix.test: Move /proc/self/fd/ check ...
* tests/net-yy-unix.c (main): ... here.

tests: tabulate pread64-pwrite64.test

* tests/gen_tests.in (pread64-pwrite64): New entry.
* tests/pread64-pwrite64.c: (main): Skip the test if /proc/self/fd/
is not available.
* tests/pread64-pwrite64.test: Remove.
* tests/Makefile.am (DECODER_TESTS): Remove pread64-pwrite64.test.

tests: tabulate read-write.test

* tests/gen_tests.in (read-write): New entry.
* tests/read-write.c: (main): Skip the test if /proc/self/fd/
is not available.
* tests/read-write.test: Remove.
* tests/Makefile.am (DECODER_TESTS): Remove read-write.test.

tests: add skip_if_unavailable function to libtests

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

tests: tabulate netlink_protocol.test

* tests/gen_tests.in (netlink_protocol): New entry.
* tests/netlink_protocol.test: Remove.
* tests/Makefile.am (DECODER_TESTS): Remove netlink_protocol.test.

tests: tabulate statfs.test

* tests/gen_tests.in (statfs): New entry.
(fstatfs, fstatfs64, statfs64): Update.
* tests/statfs.test: Remove.
* tests/Makefile.am (DECODER_TESTS): Remove statfs.test.

tests: skip statfs related tests if their sample files are not available

* tests/xstatfsx.c (print_statfs): Skip the test if open failed.

tests: extend gen_tests.sh to support arbitrary test_* rules

* tests/gen_tests.sh: Add support of arbitrary test_* rules.

tests: change gen_tests.sh to read its input as raw input

* tests/gen_tests.sh: Specify -r option to read.
* tests/gen_tests.in (shmxt): Update.

strace.1: s/regex expression/regular expression/

strace.1: enhance %statfs description

* strace.1 (.SS Filtering) <%statfs>: Fix the list of syscalls,
add an equivalent regex expression.

netlink: decode NLMSG_ERROR messages

* netlink.c (decode_nlmsgerr, decode_payload): New functions.
(decode_nlmsghdr_with_payload): Use decode_payload.
* tests/netlink_protocol.c (send_query): Check decoding
of NLMSG_ERROR messages.
* NEWS: Mention this change.

netlink: avoid using unaligned sizeof(struct nlmsghdr) unnecessarily

* netlink.c (NLMSG_HDRLEN): Redefine.
(decode_nlmsghdr_with_payload, decode_netlink): Use it instead
of sizeof(struct nlmsghdr).

Fix the length argument passed from print_iovec to decode_netlink

* io.c (print_iovec): Pass the actual length to decode_netlink
instead of the original length.
* NEWS: Mention this fix.

numa: fix printing of error values in move_pages status array

* numa.c (print_status): Do not lose a minus sign when printing
a symbolic error code.
* tests/move_pages.c (print_status_array): Update expected output.

tests: generate pure_executables part of check_PROGRAMS automatically

* tests/gen_pure_executables.sh: New file.
* bootstrap: Invoke it.
* tests/Makefile.am: Include pure_executables.am.
(check_PROGRAMS): Add $(PURE_EXECUTABLES).  Remove everything listed
in pure_executables.list.
(EXTRA_DIST): Add gen_pure_executables.sh.
* tests/.gitignore: Add pure_executables.am.

tests: make EXTRA_DIST sorted

* tests/Makefile.am (EXTRA_DIST): Sort.

tests: check decoding of alpha specific osf_utimes syscall

* tests/osf_utimes.c: New file.
* tests/gen_tests.in (osf_utimes): New entry.
* tests/Makefile.am (check_PROGRAMS): Add osf_utimes.
* tests/pure_executables.list: Likewise.
* tests/.gitignore: Likewise.

tests: parametrize utimes.c

* tests/xutimes.c: New file, based on utimes.c.
* tests/utimes.c [__NR_utimes] (TEST_SYSCALL_NR, TEST_SYSCALL_STR,
TEST_STRUCT): New macros.
[__NR_utimes]: Replace all the rest with include "xutimes.c".
* tests/Makefile.am (EXTRA_DIST): Add xutimes.c.

alpha: fix tracing flags of osf_select and osf_utimes syscalls

* linux/alpha/syscallent.h (osf_select): Add TD flag.
(osf_utimes): Add TF flag.
* NEWS: Mention alpha specific fixes.

alpha: rename print_timeval32_pair to print_timeval32_utimes

This follows the rename of print_timeval_item to print_timeval_utimes.

* defs.h [ALPHA] (print_timeval32_pair): Rename
to print_timeval32_utimes.
* print_timeval.c [ALPHA] (print_timeval32_pair): Likewise.
* utimes.c [ALPHA] (SYS_FUNC(osf_utimes)): Replace print_timeval32_pair
with print_timeval32_utimes.

tests: do more rigorous testing of utimes syscall parser

* tests/utimes.c (errstr): New variable.
(print_ts, k_utimes): New functions.
(main): Use them to do more rigorous testing of utimes syscall parser.
* tests/gen_tests.in (utimes): Update -a option.

tests: do more rigorous testing of futimesat syscall parser

* tests/futimesat.c (errstr): New variable.
(print_ts, k_futimesat): New functions.
(main): Use them to do more rigorous testing of futimesat syscall parser.

Fix printing of inaccessible times argument of utimes and futimesat syscalls

When the whole pair of struct timeval structures cannot be fetched from
tracee's memory, print the address.  This behavior follows the kernel's
that uses copy_from_user for the whole pair, too.

* print_timeval.c (print_timeval_item): Remove.
(print_timeval_pair): Rename to print_timeval_utimes, all callers
updated.  Fetch the whole timeval_t array with a single
umove_or_printaddr call.
* tests/futimesat.c (main): Update expected output.
* tests/utimes.c (main): Likewise.

tests: rewrite utimensat.test without relying on libc utimensat wrapper

The new test also does more rigorous testing.

* tests/utimensat.c: Stop including <assert.h> and <errno.h>, include
<unistd.h> and <asm/unistd.h>, check __NR_utimensat instead
of HAVE_UTIMENSAT.
(errstr): New variable.
(k_utimensat): New function, a thin wrapper around
syscall(__NR_utimensat).
(main): Use them instead of utimensat.
* tests/gen_tests.in (utimensat): New entry.
* tests/utimensat.test: Remove.
* tests/Makefile.am (DECODER_TESTS): Remove it.

tests: use fixed timestamps in utime related tests

* tests/clock.test: Remove futimesat, utime, utimensat, and utimes tests
from the list of exceptions.
* tests/utime.c (main): Do not use time(), use fixed timestamp instead.
* tests/futimesat.c (main): Do not use gettimeofday(), use fixed
timestamps instead.
* tests/utimensat.c (main): Likewise.
* tests/utimes.c (main): Likewise.

xtensa: wire up new syscalls

* linux/xtensa/syscallent.h [348..350]: New pkey_* entries.

Reported-by: Victor Krapivensky <krapivenskiy.va@phystech.edu>

Update statx parser and syscall entries lists to the upstream

* linux/32/syscallent.h [291]: Add statx entry.
* linux/64/syscallent.h [291]: Likewise.
* linux/arm/syscallent.h [397]: Likewise.
* linux/m68k/syscallent.h [379]: Likewise.
* linux/mips/syscallent-n32.h [6330]: Likewise.
* linux/mips/syscallent-n64.h [5326]: Likewise.
* linux/mips/syscallent-o32.h [4366]: Likewise.
* linux/powerpc/syscallent.h [383]: Likewise.
* linux/s390/syscallent.h [379]: Likewise.
* linux/s390x/syscallent.h [379]: Likewise.
* linux/xtensa/syscallent.h [351]: Likewise.
* statx.h (struct_statx): Update.
* statx.c (SYS_FUNC(statx)): Print struct_statx.stx_attributes_mask.
* tests/xstatx.c (print_stat, main): Update to test decoding
of struct_statx.stx_attributes_mask.

tests: add more regex match checks

* tests/qual_syscall.test: Add regex match checks.

tests: make mq_sendrecv* test executables reenterable

* tests/mq_sendrecv.c (MQ_NAME): Remove.
(mq_name): New static variable.
(cleanup): Use it instead of MQ_NAME.
(main): Initialize it dynamically using the pid of process.  Use it
instead of MQ_NAME.

tests: make mq test executable reenterable

* tests/mq.c (NAME): Remove.
(main): Replace the fixed message queue name with a dynamically
made name containing the pid of process.
* tests/gen_tests.in (mq): Update -a option.

tests: make net-yy-netlink test executable reenterable

* tests/net-yy-netlink.c (main): Use getpid() instead of a fixed
magic number.

tests: tabulate shmxt.test

* tests/gen_tests.in (shmxt): New entry.
* tests/shmxt.test: Remove.
* tests/Makefile.am (DECODER_TESTS): Remove shmxt.test.

Revert "Implement -e trace=%sched option"

-e trace=%sched became redundant as -e trace=/sched does the same.

This reverts commit 811638e9c1805438a63c14f9704b8b00ac922623.

* syscall.c (TSC): Remove.
* sysent.h (TRACE_SCHED): Remove.
* qualify.c (lookup_class): Remove %sched.
* strace.1 (.SS Filtering): Likewise.
* NEWS: Likewise.
* linux/32/syscallent.h: Remove TSC flag from sched* syscalls.
* linux/64/syscallent.h: Likewise.
* linux/alpha/syscallent.h: Likewise.
* linux/arm/syscallent.h: Likewise.
* linux/avr32/syscallent.h: Likewise.
* linux/bfin/syscallent.h: Likewise.
* linux/crisv10/syscallent.h: Likewise.
* linux/hppa/syscallent.h: Likewise.
* linux/i386/syscallent.h: Likewise.
* linux/ia64/syscallent.h: Likewise.
* linux/m68k/syscallent.h: Likewise.
* linux/microblaze/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/sh/syscallent.h: Likewise.
* linux/sh64/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
* linux/sparc64/syscallent.h: Likewise.
* linux/x32/syscallent.h: Likewise.
* linux/x86_64/syscallent.h: Likewise.
* linux/xtensa/syscallent.h: Likewise.
* tests/sched.test: Replace trace=%sched with trace=/sched.
* tests/ksysent.c (TSC): Remove.
* tests/nsyscalls.c: Likewise.

Revert "Implement -e trace=%clock option"

-e trace=%clock became redundant as -e trace=/clock does the same.

This reverts commit 0a13d2391c413e3847b71ec0c1d38f56e353b1b5.

* syscall.c (TCL): Remove.
* sysent.h (TRACE_CLOCK): Remove.
* qualify.c (lookup_class): Remove %clock.
* strace.1 (.SS Filtering): Likewise.
* NEWS: Likewise.
* linux/32/syscallent.h: Remove TCL flag from clock_* syscalls.
* linux/64/syscallent.h: Likewise.
* linux/alpha/syscallent.h: Likewise.
* linux/arm/syscallent.h: Likewise.
* linux/avr32/syscallent.h: Likewise.
* linux/bfin/syscallent.h: Likewise.
* linux/crisv10/syscallent.h: Likewise.
* linux/hppa/syscallent.h: Likewise.
* linux/i386/syscallent.h: Likewise.
* linux/ia64/syscallent.h: Likewise.
* linux/m68k/syscallent.h: Likewise.
* linux/microblaze/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/sh/syscallent.h: Likewise.
* linux/sh64/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
* linux/sparc64/syscallent.h: Likewise.
* linux/x32/syscallent.h: Likewise.
* linux/x86_64/syscallent.h: Likewise.
* linux/xtensa/syscallent.h: Likewise.
* tests/clock.test: Replace trace=%clock with trace=/clock.
* tests/ksysent.c (TCL): Remove.
* tests/nsyscalls.c: Likewise.

tests: robustify regex.test

* tests/regex.test: Use trace_statfs.test as a template instead
of clock.test and sched.test, not because of more interesting
regular expressions but to fix build on platforms where
clock.test and sched.test are not reenterable.

Implement -e trace=/regex option

* qualify.c: Include <regex.h>.
(qualify_syscall_regex): New function.
(qualify_syscall): Use it.
* strace.1: Document -e trace=/regex option.
* NEWS: Mention -e trace=/regex option.
* tests/regex.test: New test.
* tests/Makefile.am (DECODER_TESTS): Add it.
* tests/options-syntax.test: Add checks for invaild regexp
and for regexp that doesn't match a syscall.

tests: fix ioctl_nsfs.test on hppa

* tests/ioctl_nsfs.c (test_user_namespace): Specify an address
in the middle of a mapped page as child_stack address argument
of the clone call.
[IA64] (clone): Update.

tests: fix ioctl_nsfs.test on ia64

glibc on ia64 provides no clone() function, but there is a __clone2
function instead.  It is documented but no prototype is provided by
glibc.

* tests/ioctl_nsfs.c [IA64] (__clone2): New prototype.
[IA64] (clone): New macro wrapper around __clone2.

tests: check decoding of the remaining V4L2_BUF_TYPE_* types

* tests/ioctl_v4l2.c (init_v4l2_format, print_ioctl_v4l2): New functions
to avoid code duplication in VIDIOC_S_FMT and VIDIOC_TRY_FMT tests.
(main) <VIDIOC_G_FMT, VIDIOC_S_FMT, VIDIOC_TRY_FMT>: Use them.  Add
checks for remaining V4L2_BUF_TYPE_* types.

Signed-off-by: Edgar Kaziahmedov <edos@linux.com>

v4l2: Implement decoding of the remaining V4L2_BUF_TYPE_* types

* v4l2.c: Include "xlat/v4l2_vbi_flags.h" and "xlat/v4l2_sliced_flags.h".
(struct_v4l2_clip): New typedef.  Mpersify it.
(print_v4l2_clip): New function.
(print_v4l2_format_fmt): Use it.  Add struct tcb argument.  Implement
decoding of the remaining V4L2_BUF_TYPE_* types.
* xlat/v4l2_vbi_flags.in: Add V4L2_VBI_UNSYNC and V4L2_VBI_INTERLACED
introduced by linux kernel commit v2.5.46~39^2~23^2~4.
Add V4L2_VBI_ITU_525_F1_START, V4L2_VBI_ITU_525_F2_START,
V4L2_VBI_ITU_625_F1_START, and V4L2_VBI_ITU_625_F2_START introduced by
linux kernel commit v3.17-rc1~112^2~217.
* xlat/v4l2_sliced_flags.in: Add V4L2_SLICED_TELETEXT_B, V4L2_SLICED_VPS,
V4L2_SLICED_CAPTION_525, V4L2_SLICED_WSS_625, V4L2_SLICED_VBI_525, and
V4L2_SLICED_VBI_625 introduced by linux kernel commit v2.6.14-rc2~64.
* configure.ac (AC_CHECK_DECLS): Add V4L2_BUF_TYPE_SDR_CAPTURE and
V4L2_BUF_TYPE_SDR_OUTPUT.
(AC_CHECK_MEMBERS): Add struct v4l2_window.global_alpha and
struct v4l2_sdr_format.buffersize.
* NEWS: Mention this change.

Signed-off-by: Edgar Kaziahmedov <edos@linux.com>

travis: use mainline kernel uapi headers for coverage

* .travis.yml (matrix) <CHECK=coverage>: Add KHEADERS=torvalds/linux.
* travis-build.sh: Handle $KHEADERS.
* travis-install.sh: Likewise.

travis: switch from clang-3.6 to clang-3.8

* .travis.yml (matrix): Change clang-3.6 to clang-3.8.

Implement decoding of NS_* ioctl commands

* configure.ac (AC_CHECK_HEADERS): Add linux/nsfs.h.
* defs.h (DECL_IOCTL(nsfs)): New prototype.
(setns_types): Make global.
* ioctl.c (ioctl_decode): Call nsfs_ioctl for 0xb7 code.
* nsfs.c: New file.
* nsfs.h: Likewise.
* Makefile.am (strace_SOURCES): Add them.
* tests/ioctl_nsfs.c: New file.
* tests/ioctl_nsfs.test: Likewise.
* tests/.gitignore: Add ioctl_nsfs.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add ioctl_nsfs.test.
* NEWS: Mention this change.

travis: copy coverage test suite log to the travis log

* travis-build.sh (coverage): Print tests*/test-suite.log
and tests*/ksysent.log.

travis: add gcc-6

* .travis.yml (matrix): Add gcc-6 entries.
* travis-build.sh: Handle gcc*.
* travis-install.sh: Handle gcc-*.

tests: robustify gen_tests.sh against in-tree builds

* tests/gen_tests.sh: Use abs_srcdir instead of srcdir to construct
a path to gen_tests.sh in implicit make rules.

trace_syscall_exiting: do not call get_regs for filtered syscalls

This saves up to 25% of ptrace syscalls in case of trace filtering.

* syscall.c (trace_syscall_exiting): Do not call gettimeofday
and get_regs for filtered syscalls.
* NEWS: Mention this change.
* tests/get_regs.test: New test.
* tests/Makefile.am (MISC_TESTS): Add it.

Delay get_regs invocation

strace used to call get_regs on every stop of a tracee, including cases
when the result is going to be discarded.  Prepare to change this lavish
practice by delaying get_regs invocation until its result is actually
needed.

* defs.h (get_regs): Remove.
* strace.c (trace): Do not call get_regs.
* syscall.c (get_regs): Add static qualifier.
(trace_syscall_exiting, print_pc, get_scno): Call get_regs.

startup_tcb: move get_scno invocation to a more convenient place

* strace.c (trace): Move get_scno invocation ...
(startup_tcb): ... here.  This is a no-op change that slightly improves
readability.

get_regs: guard against subsequent invocations

At this moment there is only one call to get_regs,
but there is going to be more of them, so a guard is needed.

This change also adds a clear_regs call before get_regs,
which essentially reverts commit v4.9-288-ge9bfff6.

* strace.c (trace): Call clear_regs before get_regs.
* syscall.c (get_regs): Skip if get_regs_error != -1.

syscall: move definitions of automatic variables closer to their use

* syscall.c (trace_syscall_entering, trace_syscall_exiting): Move
definitions of automatic variables closer to their first use.  This
change slightly improves readability.

tests: check decoding of gettid syscall

* tests/gettid.c: New file.
* tests/.gitignore: Add gettid.
* tests/Makefile.am (check_PROGRAMS): Likewise.
* tests/gen_tests.in (gettid): New entry.

tests: fix build on alpha

* tests/getpid.c: Skip if __NR_getpid is not defined.
* tests/getppid.c: Skip if __NR_getppid is not defined.

Fixes: fd1041f6 ("tests: add tests for getpid and getppid syscalls")

Fix build with old linux/netlink.h

* socketutils.c: Provide a fallback definition of NETLINK_SOCK_DIAG.

Fixes: 5c256356 ("Do not include xlat/netlink_protocols.h twice")

Do not include xlat/netlink_protocols.h twice

Make netlink_protocols a global xlat array defined in net.c file.

* defs.h (netlink_protocols): New prototype.
* socketutils.c: Stop including "xlat/netlink_protocols.h".

Do not include xlat/clocknames.h twice

Make clocknames a global xlat array defined in time.c file.

* defs.h (clocknames): New prototype.
* perf.c: Stop including "xlat/clocknames.h".

Remove unused xlat/openmodessol.in

* xlat/openmodessol.in: Remove file unused since commit
v4.10-45-gdf4dd8b.

Remove unused xlat/aclipc.in

* xlat/aclipc.in: Remove file unused since commit v4.9-46-g681452b.

tests: remove statfs.expected

statfs.expected is unused since commit v4.11-515-g67c2f67.

* tests/statfs.expected: Remove.
* tests/Makefile.am (EXTRA_DIST): Remove it.

tests: add tests for getpid and getppid syscalls

Signed-off-by: Sandhya Bankar <bankarsandhya512@gmail.com>
[ldv: rewritten everything]

* tests/getpid.c: New file.
* tests/getppid.c: Likewise.
* tests/.gitignore: Add getpid and getppid.
* tests/pure_executables.list: Likewise.
* tests/Makefile.am (check_PROGRAMS): Likewise.
* tests/gen_tests.in (getpid, getppid): New entries.

Update V4L2_* constants

* xlat/v4l2_buf_flags.in: Add V4L2_BUF_FLAG_PREPARED,
V4L2_BUF_FLAG_NO_CACHE_INVALIDATE, and V4L2_BUF_FLAG_NO_CACHE_CLEAN
introduced by linux kernel commit v3.2-rc1~63^2~55.
Add V4L2_BUF_FLAG_TIMESTAMP_MASK, V4L2_BUF_FLAG_TIMESTAMP_UNKNOWN,
and V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC introduced by linux kernel commit
v3.9-rc1~93^2~536.
Add V4L2_BUF_FLAG_TIMESTAMP_COPY introduced by linux kernel commit
v3.10-rc1~136^2~560.
Add V4L2_BUF_FLAG_TSTAMP_SRC_MASK, V4L2_BUF_FLAG_TSTAMP_SRC_EOF,
and V4L2_BUF_FLAG_TSTAMP_SRC_SOE introduced by linux kernel commit
v3.15-rc1~85^2~186.
Add V4L2_BUF_FLAG_LAST introduced by linux kernel commit
v4.2-rc1~107^2~389.
* xlat/v4l2_buf_types.in: Add V4L2_BUF_TYPE_SDR_CAPTURE
and V4L2_BUF_TYPE_SDR_OUTPUT introduced by linux kernel commits
v3.15-rc1~85^2~213 and v4.4-rc1~118^2~14, respectively.
* xlat/xlat/v4l2_colorspaces.in: Add V4L2_COLORSPACE_ADOBERGB
and V4L2_COLORSPACE_BT2020 introduced by linux kernel commit
v3.19-rc1~29^2~72.
Add V4L2_COLORSPACE_RAW and V4L2_COLORSPACE_DCI_P3 introduced by linux
kernel commits v4.2-rc1~107^2~182 and v4.4-rc1~118^2~120, respectively.
* xlat/v4l2_device_capabilities_flags.in: Add V4L2_CAP_SDR_CAPTURE,
V4L2_CAP_EXT_PIX_FORMAT, and V4L2_CAP_SDR_OUTPUT introduced by linux
kernel commits v3.15-rc1~85^2~210, v3.17-rc1~112^2~327,
and v4.4-rc1~118^2~14, respectively.
* xlat/v4l2_memories.in: Add V4L2_MEMORY_OVERLAY introduced
in linux 2.5.46.  Add V4L2_MEMORY_DMABUF introduced by linux kernel
commit v3.8-rc1~115^2^2~52.

Signed-off-by: Edgar Kaziahmedov <edos@linux.com>

Implement -e trace=%statfs option

linux/*/syscallent*.h part is modified automatically by:

sed -i 's/TF\(,[[:space:]]*SEN.*[_"]statv\?fs\)/TF|TSF\1/' \
linux/*/syscallent*.h

[ldv: rewritten trace_statfs.test using sched.test as a template]

* sysent.h (TRACE_STATFS): New macro.
* syscall.c: Alias TSF to TRACE_STATFS around syscallent.h inclusion.
* qualify.c (lookup_class): Add SCHED_STATFS for "%statfs".
* strace.1 (.SS Filtering): Add information about %statfs syscall class.
* NEWS: Mention this change.
* linux/64/syscallent.h (statfs): Add TSF flag.
* linux/aarch64/syscallent.h: Likewise.
* linux/x32/syscallent.h: Likewise.
* linux/x86_64/syscallent.h: Likewise.
* linux/mips/syscallent-n64.h: Likewise.
* linux/32/syscallent.h (statfs64): Likewise.
* linux/arm/syscallent.h (statfs, statfs64): Likewise.
* linux/avr32/syscallent.h: Likewise.
* linux/bfin/syscallent.h: Likewise.
* linux/crisv10/syscallent.h: Likewise.
* linux/hppa/syscallent.h: Likewise.
* linux/i386/syscallent.h: Likewise.
* linux/ia64/syscallent.h: Likewise.
* linux/m68k/syscallent.h: Likewise.
* linux/microblaze/syscallent.h: Likewise.
* linux/mips/syscallent-n32.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/sh/syscallent.h: Likewise.
* linux/sh64/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
* linux/sparc64/syscallent.h: Likewise.
* linux/xtensa/syscallent.h: Likewise.
* linux/alpha/syscallent.h (osf_statfs, osf_statfs64, statfs): Likewise.
* linux/mips/syscallent-compat.h (*_statfs, *_statvfs): Likewise.
* tests/trace_statfs.test: New test.
* tests/Makefile.am (DECODER_TESTS): Add it.
* tests/ksysent.c (TSF): New macro, defined to 0.
* tests/nsyscalls.c: Likewise.

Implement -e trace=%clock option

linux/*/syscallent.h part is modified automatically by
sed -i 's/0\(,[[:space:]]*SEN(clock_\)/TCL\1/' linux/*/syscallent*.h

[ldv: rewritten clock.test using sched.test as a template]

* sysent.h (TRACE_CLOCK): New macro.
* syscall.c: Alias TCL to TRACE_CLOCK around syscallent.h inclusion.
* qualify.c (lookup_class): Add TRACE_CLOCK for "%clock".
* strace.1 (.SS Filtering): Add information about %clock syscall class.
* NEWS: Mention this change.
* linux/32/syscallent.h: Add TCL flag for clock_* syscalls.
* linux/64/syscallent.h: Likewise.
* linux/alpha/syscallent.h: Likewise.
* linux/arm/syscallent.h: Likewise.
* linux/avr32/syscallent.h: Likewise.
* linux/bfin/syscallent.h: Likewise.
* linux/crisv10/syscallent.h: Likewise.
* linux/hppa/syscallent.h: Likewise.
* linux/i386/syscallent.h: Likewise.
* linux/ia64/syscallent.h: Likewise.
* linux/m68k/syscallent.h: Likewise.
* linux/microblaze/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/sh/syscallent.h: Likewise.
* linux/sh64/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
* linux/sparc64/syscallent.h: Likewise.
* linux/x32/syscallent.h: Likewise.
* linux/x86_64/syscallent.h: Likewise.
* linux/xtensa/syscallent.h: Likewise.
* tests/clock.test: New test.
* tests/Makefile.am (DECODER_TESTS): Add it.
* tests/ksysent.c (TCL): New macro, defined to 0.
* tests/nsyscalls.c: Likewise.

tests: tabulate xattr.test

* tests/gen_tests.in (xattr): New entry.
* tests/xattr.test: Remove.
* tests/Makefile.am (DECODER_TESTS): Remove xattr.test.

tests: generalize scripts that check non-abbreviated decoding of ioctls

* tests/ioctl-v.sh: New file.
* tests/Makefile.am (EXTRA_DIST): Add it.
(DECODER_TESTS): Remove ioctl_evdev-v.test, ioctl_loop-v.test,
and ioctl_rtc-v.test.
* tests/gen_tests.in (ioctl_evdev-v, ioctl_loop-v, ioctl_rtc-v):
New entries.
* tests/ioctl_evdev-v.test: Remove.
* tests/ioctl_loop-v.test: Ditto.
* tests/ioctl_rtc-v.test: Ditto.

tests: tabulate stereotypical test scripts

Convert test scripts that follow simple testing patterns to a table.
Generate all these scripts from gen_tests.in file using gen_tests.sh
script at bootstrap time.

The largest set of test scripts has been converted using
the following command:

grep -l ^run_strace_match_diff *.test |while read f; do
n="${f%.test}"
grep '^[^#]' "$f" |
grep -Evq '^(\. "\${srcdir=\.}/init\.sh"|run_strace_match_diff)' ||
sed -n 's/^run_strace_match_diff\(.*\)/'$n'\1/p' "$f"
done

The second largest set of test scripts has been converted using
the following command:

grep -l srcdir= *.test |while read f; do
n="${f%.test}"
grep '^[^#]' "$f" |
grep -Fvq srcdir= ||
sed -n 's/^. "\${srcdir=.}\/\([^"]\+\)".*/'$n'\t+\1/p' "$f"
done

* tests/gen_tests.in: New file.
* tests/gen_tests.sh: New file.
* bootstrap: Invoke it.
* tests/.gitignore: Add *.gen.test and gen_tests.am.
* tests/_newselect.test: Remove.
* tests/accept.test: Ditto.
* tests/accept4.test: Ditto.
* tests/access.test: Ditto.
* tests/acct.test: Ditto.
* tests/add_key.test: Ditto.
* tests/adjtimex.test: Ditto.
* tests/aio.test: Ditto.
* tests/alarm.test: Ditto.
* tests/bpf.test: Ditto.
* tests/btrfs.test: Ditto.
* tests/chmod.test: Ditto.
* tests/chown.test: Ditto.
* tests/chown32.test: Ditto.
* tests/chroot.test: Ditto.
* tests/clock_adjtime.test: Ditto.
* tests/clock_nanosleep.test: Ditto.
* tests/clock_xettime.test: Ditto.
* tests/copy_file_range.test: Ditto.
* tests/creat.test: Ditto.
* tests/delete_module.test: Ditto.
* tests/dup.test: Ditto.
* tests/dup2.test: Ditto.
* tests/dup3.test: Ditto.
* tests/epoll_create.test: Ditto.
* tests/epoll_create1.test: Ditto.
* tests/epoll_ctl.test: Ditto.
* tests/epoll_pwait.test: Ditto.
* tests/epoll_wait.test: Ditto.
* tests/erestartsys.test: Ditto.
* tests/execveat-v.test: Ditto.
* tests/execveat.test: Ditto.
* tests/faccessat.test: Ditto.
* tests/fadvise64_64.test: Ditto.
* tests/fallocate.test: Ditto.
* tests/fanotify_init.test: Ditto.
* tests/fanotify_mark.test: Ditto.
* tests/fchdir.test: Ditto.
* tests/fchmod.test: Ditto.
* tests/fchmodat.test: Ditto.
* tests/fchown.test: Ditto.
* tests/fchown32.test: Ditto.
* tests/fchownat.test: Ditto.
* tests/fcntl.test: Ditto.
* tests/fcntl64.test: Ditto.
* tests/fdatasync.test: Ditto.
* tests/file_handle.test: Ditto.
* tests/file_ioctl.test: Ditto.
* tests/finit_module.test: Ditto.
* tests/flock.test: Ditto.
* tests/fork-f.test: Ditto.
* tests/fstat64.test: Ditto.
* tests/fstatat64.test: Ditto.
* tests/fstatfs.test: Ditto.
* tests/fstatfs64.test: Ditto.
* tests/fsync.test: Ditto.
* tests/ftruncate.test: Ditto.
* tests/ftruncate64.test: Ditto.
* tests/futimesat.test: Ditto.
* tests/get_mempolicy.test: Ditto.
* tests/getcpu.test: Ditto.
* tests/getcwd.test: Ditto.
* tests/getdents.test: Ditto.
* tests/getdents64.test: Ditto.
* tests/getegid.test: Ditto.
* tests/getegid32.test: Ditto.
* tests/geteuid.test: Ditto.
* tests/geteuid32.test: Ditto.
* tests/getgid.test: Ditto.
* tests/getgid32.test: Ditto.
* tests/getgroups.test: Ditto.
* tests/getgroups32.test: Ditto.
* tests/getpeername.test: Ditto.
* tests/getpgrp.test: Ditto.
* tests/getrandom.test: Ditto.
* tests/getresgid.test: Ditto.
* tests/getresgid32.test: Ditto.
* tests/getresuid.test: Ditto.
* tests/getresuid32.test: Ditto.
* tests/getrlimit.test: Ditto.
* tests/getrusage.test: Ditto.
* tests/getsid.test: Ditto.
* tests/getsockname.test: Ditto.
* tests/getuid32.test: Ditto.
* tests/getxxid.test: Ditto.
* tests/inet-cmsg.test: Ditto.
* tests/init_module.test: Ditto.
* tests/inotify.test: Ditto.
* tests/inotify_init1.test: Ditto.
* tests/int_0x80.test: Ditto.
* tests/ioctl_block.test: Ditto.
* tests/ioctl_evdev.test: Ditto.
* tests/ioctl_loop.test: Ditto.
* tests/ioctl_mtd.test: Ditto.
* tests/ioctl_rtc.test: Ditto.
* tests/ioctl_scsi.test: Ditto.
* tests/ioctl_sg_io_v3.test: Ditto.
* tests/ioctl_sg_io_v4.test: Ditto.
* tests/ioctl_uffdio.test: Ditto.
* tests/ioctl_v4l2.test: Ditto.
* tests/ioperm.test: Ditto.
* tests/iopl.test: Ditto.
* tests/ioprio.test: Ditto.
* tests/ip_mreq.test: Ditto.
* tests/ipc.test: Ditto.
* tests/ipc_msg.test: Ditto.
* tests/ipc_sem.test: Ditto.
* tests/ipc_shm.test: Ditto.
* tests/kcmp.test: Ditto.
* tests/kexec_file_load.test: Ditto.
* tests/kexec_load.test: Ditto.
* tests/keyctl.test: Ditto.
* tests/kill.test: Ditto.
* tests/lchown.test: Ditto.
* tests/lchown32.test: Ditto.
* tests/link.test: Ditto.
* tests/linkat.test: Ditto.
* tests/lookup_dcookie.test: Ditto.
* tests/lstat.test: Ditto.
* tests/lstat64.test: Ditto.
* tests/mbind.test: Ditto.
* tests/membarrier.test: Ditto.
* tests/memfd_create.test: Ditto.
* tests/migrate_pages.test: Ditto.
* tests/mincore.test: Ditto.
* tests/mkdir.test: Ditto.
* tests/mkdirat.test: Ditto.
* tests/mknod.test: Ditto.
* tests/mknodat.test: Ditto.
* tests/mlock.test: Ditto.
* tests/mlock2.test: Ditto.
* tests/mlockall.test: Ditto.
* tests/mmap64.test: Ditto.
* tests/mmsg-silent.test: Ditto.
* tests/mmsg.test: Ditto.
* tests/mmsg_name-v.test: Ditto.
* tests/mmsg_name.test: Ditto.
* tests/mount.test: Ditto.
* tests/move_pages.test: Ditto.
* tests/mq.test: Ditto.
* tests/mq_sendrecv-read.test: Ditto.
* tests/mq_sendrecv-write.test: Ditto.
* tests/mq_sendrecv.test: Ditto.
* tests/msg_control-v.test: Ditto.
* tests/msg_control.test: Ditto.
* tests/msg_name.test: Ditto.
* tests/munlockall.test: Ditto.
* tests/nanosleep.test: Ditto.
* tests/net-icmp_filter.test: Ditto.
* tests/net-sockaddr.test: Ditto.
* tests/newfstatat.test: Ditto.
* tests/old_mmap.test: Ditto.
* tests/oldfstat.test: Ditto.
* tests/oldlstat.test: Ditto.
* tests/oldstat.test: Ditto.
* tests/open.test: Ditto.
* tests/openat.test: Ditto.
* tests/pause.test: Ditto.
* tests/perf_event_open.test: Ditto.
* tests/perf_event_open_nonverbose.test: Ditto.
* tests/perf_event_open_unabbrev.test: Ditto.
* tests/pipe2.test: Ditto.
* tests/pkey_alloc.test: Ditto.
* tests/pkey_free.test: Ditto.
* tests/pkey_mprotect.test: Ditto.
* tests/ppoll-v.test: Ditto.
* tests/ppoll.test: Ditto.
* tests/preadv-pwritev.test: Ditto.
* tests/preadv.test: Ditto.
* tests/preadv2-pwritev2.test: Ditto.
* tests/printstr.test: Ditto.
* tests/prlimit64.test: Ditto.
* tests/process_vm_readv.test: Ditto.
* tests/process_vm_writev.test: Ditto.
* tests/pselect6.test: Ditto.
* tests/ptrace.test: Ditto.
* tests/pwritev.test: Ditto.
* tests/quotactl-v.test: Ditto.
* tests/quotactl-xfs-v.test: Ditto.
* tests/quotactl-xfs.test: Ditto.
* tests/quotactl.test: Ditto.
* tests/readahead.test: Ditto.
* tests/readdir.test: Ditto.
* tests/readlink.test: Ditto.
* tests/readlinkat.test: Ditto.
* tests/reboot.test: Ditto.
* tests/recvfrom.test: Ditto.
* tests/recvmmsg-timeout.test: Ditto.
* tests/recvmsg.test: Ditto.
* tests/remap_file_pages.test: Ditto.
* tests/rename.test: Ditto.
* tests/renameat.test: Ditto.
* tests/renameat2.test: Ditto.
* tests/request_key.test: Ditto.
* tests/rmdir.test: Ditto.
* tests/rt_sigpending.test: Ditto.
* tests/rt_sigprocmask.test: Ditto.
* tests/rt_sigqueueinfo.test: Ditto.
* tests/rt_sigreturn.test: Ditto.
* tests/rt_sigsuspend.test: Ditto.
* tests/rt_sigtimedwait.test: Ditto.
* tests/rt_tgsigqueueinfo.test: Ditto.
* tests/sched_get_priority_mxx.test: Ditto.
* tests/sched_rr_get_interval.test: Ditto.
* tests/sched_xetaffinity.test: Ditto.
* tests/sched_xetattr.test: Ditto.
* tests/sched_xetparam.test: Ditto.
* tests/sched_xetscheduler.test: Ditto.
* tests/sched_yield.test: Ditto.
* tests/seccomp-filter-v.test: Ditto.
* tests/seccomp-filter.test: Ditto.
* tests/select.test: Ditto.
* tests/semop.test: Ditto.
* tests/sendfile.test: Ditto.
* tests/sendfile64.test: Ditto.
* tests/set_mempolicy.test: Ditto.
* tests/setdomainname.test: Ditto.
* tests/setfsgid.test: Ditto.
* tests/setfsgid32.test: Ditto.
* tests/setfsuid.test: Ditto.
* tests/setfsuid32.test: Ditto.
* tests/setgid.test: Ditto.
* tests/setgid32.test: Ditto.
* tests/setgroups.test: Ditto.
* tests/setgroups32.test: Ditto.
* tests/sethostname.test: Ditto.
* tests/setns.test: Ditto.
* tests/setregid.test: Ditto.
* tests/setregid32.test: Ditto.
* tests/setresgid.test: Ditto.
* tests/setresgid32.test: Ditto.
* tests/setresuid.test: Ditto.
* tests/setresuid32.test: Ditto.
* tests/setreuid.test: Ditto.
* tests/setreuid32.test: Ditto.
* tests/setrlimit.test: Ditto.
* tests/setuid.test: Ditto.
* tests/setuid32.test: Ditto.
* tests/shutdown.test: Ditto.
* tests/siginfo.test: Ditto.
* tests/signal_receive.test: Ditto.
* tests/signalfd4.test: Ditto.
* tests/sigreturn.test: Ditto.
* tests/socketcall.test: Ditto.
* tests/splice.test: Ditto.
* tests/stat.test: Ditto.
* tests/stat64.test: Ditto.
* tests/statfs64.test: Ditto.
* tests/statx.sh: Ditto.
* tests/statx.test: Ditto.
* tests/swap.test: Ditto.
* tests/symlink.test: Ditto.
* tests/symlinkat.test: Ditto.
* tests/sync.test: Ditto.
* tests/sync_file_range.test: Ditto.
* tests/sync_file_range2.test: Ditto.
* tests/sysinfo.test: Ditto.
* tests/syslog.test: Ditto.
* tests/tee.test: Ditto.
* tests/time.test: Ditto.
* tests/timer_create.test: Ditto.
* tests/timer_xettime.test: Ditto.
* tests/timerfd_xettime.test: Ditto.
* tests/times-fail.test: Ditto.
* tests/times.test: Ditto.
* tests/truncate.test: Ditto.
* tests/truncate64.test: Ditto.
* tests/ugetrlimit.test: Ditto.
* tests/umask.test: Ditto.
* tests/umoven-illptr.test: Ditto.
* tests/umovestr-illptr.test: Ditto.
* tests/umovestr3.test: Ditto.
* tests/unlink.test: Ditto.
* tests/unlinkat.test: Ditto.
* tests/unshare.test: Ditto.
* tests/userfaultfd.test: Ditto.
* tests/ustat.test: Ditto.
* tests/utime.test: Ditto.
* tests/utimes.test: Ditto.
* tests/vfork-f.test: Ditto.
* tests/vhangup.test: Ditto.
* tests/vmsplice.test: Ditto.
* tests/wait4-v.test: Ditto.
* tests/wait4.test: Ditto.
* tests/waitid-v.test: Ditto.
* tests/waitid.test: Ditto.
* tests/waitpid.test: Ditto.
* tests/xattr-strings.test: Ditto.
* tests/xet_robust_list.test: Ditto.
* tests/xetitimer.test: Ditto.
* tests/xetpgid.test: Ditto.
* tests/xetpriority.test: Ditto.
* tests/xettimeofday.test: Ditto.
* tests/Makefile.am (DECODER_TESTS, MISC_TESTS): Remove them.
Include gen_tests.am.
(TESTS): Add $(GEN_TESTS).
(XFAIL_TESTS_x86_64, XFAIL_TESTS_x32): Rename int_0x80.test
to int_0x80.gen.test.
(EXTRA_DIST): Add gen_tests.in and gen_tests.sh, remove statx.sh.
(clean-local-check): Remove $(GEN_TESTS:.gen.test=.dir).

tests: handle test scripts with .gen.test suffix

* tests/init.sh: If script name ends with .gen.test,
set NAME variable with .gen.test suffix stripped.

mpers.awk: add support for multidimensional arrays

* mpers.awk (update_upper_bound): New function, which maintains new "count"
property for storing total element count and updates "upper_bound"
property which now contains string with array dimensions.
(/^DW_AT_upper_bound/, /^DW_AT_count/): Use it.
(what_is) <case "array_type">: Use "count" property in order to calculate
returned_size, do not embody returned string in square brackets.
* mpers_test.sh: Add checks for multidimensional arrays.

mpers.awk: prepare for adding support of multidimensional arrays

* mpers.awk (what_is) <case "structure_type", case "union_type">:
Move formatting of array upper_bound ...
<case "array_type">: ... here.

tests: cleanup temporary files removals

As every test now runs in its own subdirectory, there is no need
to remove leftover files manually by each test.

* tests/init.sh (run_strace_match_diff): Do not remove $EXP.
* tests/brk.test: Likewise.
* tests/options-syntax.test: Likewise.
* tests/qual_inject-retval.test (check_injection): Likewise.
* tests/qual_signal.test (test_one_sig): Likewise.
* tests/sched.test: Likewise.
* tests/seccomp-strict.test: Likewise.
* tests/strace-V.test: Likewise.
* tests/strace-tt.test: Likewise.
* tests/strace-ttt.test: Likewise.
* tests/threads-execve.test: Likewise.
* tests/attach-f-p.test: Use $EXP instead of $OUT, do not remove it.
* tests/personality.test: Likewise.
* tests/poll.test: Likewise.
* tests/fstat.test: Likewise.
* tests/ipc.sh: Likewise.
* tests/restart_syscall.test: Likewise.
* tests/utimensat.test: Likewise.
* tests/attach-p-cmd.test: Likewise.  Do not remove
attach-p-cmd.test-lock.
* tests/detach-running.test: Do not remove $LOG.
* tests/detach-sleeping.test: Likewise.
* tests/detach-stopped.test: Likewise.
* tests/redirect.test: Do not remove $OUT.
* tests/strace-S.test: Likewise.
* tests/getdents.test: Do not remove $LOG.dir.
* tests/getdents64.test: Likewise.
* tests/readdir.test: Likewise.
* tests/btrfs-v.test: Do not remove $EXP and $OUT.
* tests/btrfs-vw.test: Likewise.
* tests/btrfs-w.test: Likewise.
* tests/execve-v.test: Likewise.
* tests/execve.test: Likewise.
* tests/fadvise64.test: Likewise.
* tests/getuid.test: Likewise.
* tests/ioctl.test: Likewise.
* tests/ioctl_dm-v.test: Likewise.
* tests/ioctl_dm.test: Likewise.
* tests/ioctl_evdev-v.test: Likewise.
* tests/ioctl_loop-nv.test: Likewise.
* tests/ioctl_loop-v.test: Likewise.
* tests/ioctl_loop.test: Likewise.
* tests/ioctl_rtc-v.test: Likewise.
* tests/ioctl_sock_gifconf.test: Likewise.
* tests/llseek.test: Likewise.
* tests/lseek.test: Likewise.
* tests/mmap.test: Likewise.
* tests/net-y-unix.test: Likewise.
* tests/net-yy-inet.test: Likewise.
* tests/net-yy-netlink.test: Likewise.
* tests/net-yy-unix.test: Likewise.
* tests/opipe.test: Likewise.
* tests/prctl-arg2-intptr.test: Likewise.
* tests/prctl-dumpable.test: Likewise.
* tests/prctl-name.test: Likewise.
* tests/prctl-no-args.test: Likewise.
* tests/prctl-pdeathsig.test: Likewise.
* tests/prctl-seccomp-filter-v.test: Likewise.
* tests/prctl-seccomp-strict.test: Likewise.
* tests/prctl-securebits.test: Likewise.
* tests/prctl-tid_address.test: Likewise.
* tests/prctl-tsc.test: Likewise.
* tests/umovestr2.test: Likewise.
* tests/uname.test: Likewise.
* tests/pread64-pwrite64.test: Do nore remove pread64-pwrite64-tmpfile.
* tests/read-write.test: Do nore remove read-write-tmpfile.
* tests/qual_fault.test (check_fault_injection): Do not remove $EXP,
$outexp, and $outgot.
* tests/redirect-fds.test (check_fd): Reorder removal of work files.
* tests/pc.test: Use $EXP instead of $EXPECTED, do not remove it.
* tests/strace-t.test: Likewise.
* tests/scm_rights-fd.test: Likewise.  Use dir instead of $LOG.dir,
do not remove it.
* tests/strace-ff.test: Do not remove $OUT and $LOG.* files.