2023-05-08  Dmitry V. Levin  <ldv@strace.io>

	Prepare for 6.3 release.
	* NEWS: Update for 6.3 release.

2023-05-07  Dmitry V. Levin  <ldv@strace.io>

	Fix preprocessor indentation.
	Indent the C preprocessor directives to reflect their nesting
	using the following script:

	$ cppi -l $(git grep -El '^[[:space:]]*#[[:space:]]*(if|ifdef|ifndef|elif|else|endif|define|pragma)[[:space:]]' src tests |grep -v '\.sh$') |while read f; do
		cppi < "$f" > "$f".cppi; mv "$f".cppi "$f"
	done

2023-05-06  Dmitry V. Levin  <ldv@strace.io>

	tests: bring lists back to the sorted order.
	* tests/Makefile.am (DECODER_TESTS, MISC_TESTS, check_SCRIPTS,
	check_DATA, EXTRA_DIST): Make the list sorted again.
	* tests/gen_tests.in: Likewise.
	* tests/pure_executables.list: Likewise.

	tests: check --argv0 option.
	* tests/options-syntax.test: Check --argv0 without command.
	* tests/strace--argv0.test: New test.
	* tests/strace--argv0.expected: New file.
	* tests/Makefile.am (MISC_TESTS): Add strace--argv0.test.
	(check_DATA): Add strace--argv0.expected.

2023-05-06  John Reiser  <jreiser@BitWagon.com>
	    Dmitry V. Levin  <ldv@strace.io>

	Introduce --argv0 option.
	This option is useful for tracing multi-call executables which interpret
	argv[0], such as busybox or kmod.

	* NEWS: Mention this.
	* doc/strace.1.in: Document this.
	* src/strace.c (usage): Likewise.
	(argv0): New variable.
	(startup_child): Use it.
	(GETOPT_ARGV0): New enum constant.
	(longopts, init): Use it.

	Resolves: https://github.com/strace/strace/pull/248

2023-05-05  Dmitry V. Levin  <ldv@strace.io>

	Remove -l alias for the recently introduced --syscall-limit option.
	As strace already has a lot of short options which are hard to remember,
	let's avoid introducing new short options for a while.

	* NEWS: Mention this.
	* doc/strace.1.in: Update --syscall-limit documentation.
	* src/strace.c (print_version): Do not mention -l option.
	(optstring): Remove 'l'.
	(GETOPT_SYSCALL_LIMIT): New enum constant.
	(longopts, init): Use it instead of 'l'.
	* tests/gen_tests.in (strace--syscall-limit-status-c,
	strace--syscall-limit-status-summary): Replace -l with --syscall-limit.
	* tests/options-syntax.test: Update expected output.
	* tests/strace--syscall-limit-path.c: Update comment.
	* tests/strace--syscall-limit-status.c: Likewise.
	* tests/strace--syscall-limit.c: Likewise.
	* tests/strace--syscall-limit.test: Likewise.

2023-05-05  Eugene Syromyatnikov  <evgsyr@gmail.com>

	doc/strace.1: mention --tips in the synopsis.
	* doc/strace.1.in (.SH SYNOPSIS): Add --tips options to the list of
	possible options, add "strace --tips" invocation variant.

	Complements: v5.18~38 "Raise strace awareness"
	Complements: v6.2-10-g7a289e79b "Make --tips more easily available"

2023-05-05  Eugene Syromyatnikov  <evgsyr@gmail.com>

	doc/strace.1: sort options in the synopsys, mention -Y.
	* doc/strace.1.in (.SH SYNOPSYS): Sort options in the lexicographical
	order, add -Y to the list of one-letter options, similarly to -z/-Z.

2023-05-05  Eugene Syromyatnikov  <evgsyr@gmail.com>

	syscall: fix -c (CFLAG_ONLY_STATS) usage in conjunction with -e and -l.
	* src/syscall.c (syscall_exiting_trace): Move cflag handling right
	before tprint_arg_end() and in the res != 1 code path, avoid printing
	anything if cflag is set to CFLAG_ONLY_STATS.
	* tests/.gitignore: Add strace--syscall-limit-c
	and strace--syscall-limit-status-c.
	* tests/Makefile.am (check_PROGRAMS): Likewise.
	* tests/gen_tests.in (strace--syscall-limit-c,
	strace--syscall-limit-status-c): New tests.
	* tests/strace--syscall-limit-c.c: New file.
	* tests/strace--syscall-limit-status-c.c: Likewise.
	* tests/strace--syscall-limit-status-summary.c: Likewise.
	* tests/strace--syscall-limit-summary.c: Likewise.
	* tests/strace--syscall-limit.c [!PRINT_INVALID] (PRINT_INVALID): New
	macro, set to 1.
	[!PRINT_STATS] (PRINT_STATS): New macro, set to 0.
	[!UNLINKAT_CNT] (UNLINKAT_CNT): New macro, set to 1.
	[!TOTAL_CNT] (TOTAL_CNT): New macro, set to 3.
	(test_chdir, test_rmdir) [!PRINT_INVALID]: Do not print syscalls with
	non-zero return value.
	(main) [PRINT_STATS]: Print the expected syscall statistics output.
	* NEWS: Mention it.

	Fixes: v5.2~6 "Implement -e status=set option"
	Fixes: v6.2-13-gac1d1e25d "Introduce -l/--syscall-limit options"

2023-04-30  Eugene Syromyatnikov  <evgsyr@gmail.com>

	mem: handle hppa MADV_* UAPI breakage.
	Linux commit v6.2-rc1~39^2~7 has broken UAPI on PA-RISC by changing
	the values of some MADV_* constants;  that forces some special handling
	for them, since we cannot have any assumptions about the version
	of the kernel headers and/or kernel both strace and tracees are built
	and/or being run on.

	* src/mem.c: Include "xlat/madvise_hppa_generic_cmds.h".
	[HPPA]: Include "xlat/madvise_hppa_old_cmds.h".
	(SYS_FUNC(madvise)) <advice>: New local variable, set to tcp->u_arg[2].
	[HPPA] (SYS_FUNC(madvise)): Check madvise_hppa_old_cmds for the advice
	value and print it appropriately if it is there;  then check
	madvise_hppa_generic_cmds and print it appropriately if it is there;
	then fallback to printing advice as madvise_cmds xval.
	[!HPPA] (SYS_FUNC(madvise)): Print advice as madvise_cmds
	and madvise_hppa_generic_cmds xval.
	* src/xlat/madvise_cmds.in: Add sorted;  remove "Generated ..." comment;
	move hppa-specific values to madvise_hppa_old_cmds.in and their generic
	counterparts to madvise_hppa_generic_cmds.in.
	* src/xlat/madvise_hppa_generic_cmds.in: New file.
	* src/xlat/madvise_hppa_old_cmds.in: Likewise.
	* tests/.gitignore: Add madvise-Xabbrev, madvise-Xraw,
	and madvise-Xverbose.
	* tests/pure_executables.list: Likewise.
	* tests/gen_tests.in (advise-Xabbrev, madvise-Xraw,  madvise-Xverbos):
	New tests.
	* tests/madvise.c: Add checks for the advice argument decoding.
	* tests/madvise-Xabbrev.c: New file.
	* tests/madvise-Xraw.c: Likewise.
	* tests/madvise-Xverbose.c: Likewise.
	* NEWS: Mention it.

	Reported-by: Matoro Mahri <matoro@users.noreply.github.com>
	Closes: https://github.com/strace/strace/issues/241

2023-04-30  Eugene Syromyatnikov  <evgsyr@gmail.com>

	xlat/gen.sh: allow skipping xlat value checking.
	This enables storing "wrong" values in xlats, so they can be referenced
	in cases when there are discrepancies between what UAPI headers provide
	and what they used to provide.

	* src/xlat/gen.sh (cond_def): Emit static_assert() only if $nocheckval
	is not enabled.
	(cond_xlat): Add is_shift local variable;  check whether $m starts
	with "1<<" and set $is_shift if it is;  use print_xval() only if neither
	is_shift nor nocheckval are set;  call print_xlat_pair() if $nocheckval
	is set.
	(gen_header): Add nocheckval to local variables;  handle "#checkval"
	and "#nocheckval" directives.

2023-04-30  Dmitry V. Levin  <ldv@strace.io>

	Update copyright headers.
	Headers updated automatically using maint/update_copyright_years.sh
	script.

	maint: do not shorten the copyright years range.
	* maint/update_copyright_years.sh (process_file): Skip updating
	copyright years range if the last year in the file is later than
	the year calculated from the latest commit.

	dist/INSTALL: suggest parallelized build.
	* dist/INSTALL: Pass -j`nproc` to "make" and "make check" invocations.

2023-04-30  Dmitry V. Levin  <ldv@strace.io>

	generate_mpers_am.sh: enhance error diagnostics.
	* src/generate_mpers_am.sh: Explicitly issue an error if the generated
	list of mpers source files is empty.

	Resolves: https://github.com/strace/strace/issues/249

2023-04-29  leedagee  <leedageea@gmail.com>
	    Dmitry V. Levin  <ldv@strace.io>

	Implement decoding of signal masks associated with signalfd file descriptors
	When signalfds are used, normal signal handling method is usually
	disabled, leaving strace without signals to catch and decode.

	This patch adds decoding of signal masks associated with signalfd file
	descriptors.

	Decoding the signalfd_siginfo struct requires additional work mentioned
	in github#199.


	* NEWS: Mention this change.
	* doc/strace.1.in: Document --decode-fds=signalfd.
	* src/strace.c (usage): Likewise.
	* src/number_set.h (enum decode_fd_bits): Add DECODE_FD_SIGNALFD.
	* src/filter_qualify.c (decode_fd_str_to_uint): Handle signalfd.
	* src/util.c (print_fdinfo_sigmask, printsignalfd): New functions.
	(printfd_pid_with_finfo): Use printsignalfd when DECODE_FD_SIGNALFD
	is set in decode_fd_set.
	* tests/signalfd4.c [PRINT_SIGNALFD]: Check decoding of signal masks
	associated with signalfd file descriptors.
	* tests/signalfd4-yy.c: New file.
	* tests/pure_executables.list: Add signalfd4-yy.
	* tests/.gitignore: Likewise.
	* tests/gen_tests.in (signalfd4): Add -a32.
	(signalfd4-yy): New test.

2023-04-29  Dmitry V. Levin  <ldv@strace.io>

	util: introduce scan_fdinfo() function.
	* src/util.c (scan_fdinfo_fn): New type.
	(scan_fdinfo, parse_fdinfo_pid): New functions.
	(pidfd_get_pid): Use them.

	Suggested-by: Masatake YAMATO <yamato@redhat.com>

2023-04-28  Eugene Syromyatnikov  <evgsyr@gmail.com>

	net: implement IP_LOCAL_PORT_RANGE socket option decoding.
	Introduced by Linux kernel commit v6.3-rc1~162^2~206^2~1.

	* src/net.c (print_port_range): New function.
	(print_getsockopt) <case SOL_IP> <case IP_LOCAL_PORT_RANGE>: Call it.
	(print_setsockopt) <case SOL_IP> <case IP_LOCAL_PORT_RANGE>: Ditto.
	* tests/.gitignore: Add ip_local_port_range, ip_local_port_range-Xabbrev,
	ip_local_port_range-Xraw, ip_local_port_range-Xverbose,
	ip_local_port_range-success, ip_local_port_range-success-Xabbrev,
	ip_local_port_range-success-Xraw,
	and ip_local_port_range-success-Xverbose.
	* tests/Makefile.am (check_PROGRAMS): Add ip_local_port_range-success,
	ip_local_port_range-success-Xabbrev, ip_local_port_range-success-Xraw,
	and ip_local_port_range-success-Xverbose.
	* tests/gen_tests.in (ip_local_port_range, ip_local_port_range-Xabbrev,
	ip_local_port_range-Xraw, ip_local_port_range-Xverbose,
	ip_local_port_range-success, ip_local_port_range-success-Xabbrev,
	ip_local_port_range-success-Xraw, ip_local_port_range-success-Xverbose):
	New tests.
	* tests/pure_executables.list: Add ip_local_port_range,
	ip_local_port_range-Xabbrev, ip_local_port_range-Xraw,
	and ip_local_port_range-Xverbose.
	* tests/ip_local_port_range.c: New file.
	* tests/ip_local_port_range-Xabbrev.c: Likewise.
	* tests/ip_local_port_range-Xraw.c: Likewise.
	* tests/ip_local_port_range-Xverbose.c: Likewise.
	* tests/ip_local_port_range-success-Xabbrev.c: Likewise.
	* tests/ip_local_port_range-success-Xraw.c: Likewise.
	* tests/ip_local_port_range-success-Xverbose.c: Likewise.
	* tests/ip_local_port_range-success.c: Likewise.
	* NEWS: Mention it.

2023-04-28  Eugene Syromyatnikov  <evgsyr@gmail.com>

	prctl: implement PR_[GS]ET_MDWE decoding.
	Introduced by Linux commit v6.3-rc1~113^2~215.

	* src/xlat/pr_mdwe_flags.in: New file.
	* src/prctl.c: Include "xlat/pr_mdwe_flags.h".
	(SYS_FUNC(prctl)) <case PR_SET_MDWE, case PR_GET_MDWE>: Implement
	command decoders.
	* tests/.gitignore: Add prctl-mdwe.
	* tests/Makefile.am (check_PROGRAMS): Add prctl-mdwe.
	* tests/gen_tests.in (prctl-mdwe): New test.
	* tests/prctl-mdwe.c: New file.
	* NEWS: Mention it.

2023-04-28  Dmitry V. Levin  <ldv@strace.io>

	io_uring: rename pad field of io_uring_buf_reg to flags.
	* bundled/linux/include/uapi/linux/io_uring.h (struct io_uring_buf_reg):
	Rename pad to flags following the change introduced by Linux kernel
	commit v6.3-rc5-6-g81cf17cd3ab3.
	* src/io_uring.c (print_io_uring_buf_reg): Likewise.
	* tests/io_uring_register.c (main): Likewise.

	xlat: update V4L2_PIX_FMT_* constants.
	* src/xlat/v4l2_pix_fmts.in (V4L2_PIX_FMT_RGBX1010102,
	V4L2_PIX_FMT_RGBA1010102, V4L2_PIX_FMT_ARGB2101010): New constants
	introduced by Linux kernel commit v6.3-rc1~28^2~19^2~18.
	(V4L2_PIX_FMT_Y210, V4L2_PIX_FMT_Y212, V4L2_PIX_FMT_Y216): New constants
	introduced by Linux kernel commit v6.3-rc1~28^2~19^2~17.
	* NEWS: Mention this.

	xlat: update TCA_* constants.
	* src/xlat/rtnl_tc_attrs.in (TCA_EXT_WARN_MSG): New constant introduced
	by Linux kernel commit v6.3-rc1~162^2~279.
	* src/rtnl_tc.c (tcmsg_nla_decoders): Add TCA_EXT_WARN_MSG.
	* NEWS: Mention this.

	xlat: update PR_* constants.
	* src/xlat/prctl_options.in (PR_SET_MDWE, PR_GET_MDWE): New constants
	introduced by Linux kernel commit v6.3-rc1~113^2~215.
	* src/prctl.c (SYS_FUNC(prctl)): Handle them.
	* NEWS: Mention this.

	xlat: update NFT_MSG_* constants.
	* src/xlat/nf_nftables_msg_types.in (NFT_MSG_DESTROYTABLE,
	NFT_MSG_DESTROYCHAIN, NFT_MSG_DESTROYRULE, NFT_MSG_DESTROYSET,
	NFT_MSG_DESTROYSETELEM, NFT_MSG_DESTROYOBJ, NFT_MSG_DESTROYFLOWTABLE):
	New constants introduced by Linux kernel commit v6.3-rc1~162^2~264^2.
	* src/netlink.c (decode_nlmsg_flags_netfilter): Handle them.
	* NEWS: Mention this.

	xlat: update MFD_* constants.
	* src/xlat/memfd_create_flags.in (MFD_NOEXEC_SEAL, MFD_EXEC): New
	constants introduced by Linux kernel commit v6.3-rc1~113^2~502.
	* tests/memfd_create.c (main): Update expected output.
	* NEWS: Mention this.

	xlat: update IORING_* constants.
	* src/xlat/uring_setup_features.in (IORING_FEAT_REG_REG_RING): New
	constant introduced by Linux kernel commit v6.3-rc1~209^2.
	* NEWS: Mention this.

	xlat: update IP_* constants.
	* src/xlat/sock_ip_options.in (IP_LOCAL_PORT_RANGE): New constant
	introduced by Linux kernel commit v6.3-rc1~162^2~206^2~1.
	* NEWS: Mention this.

	xlat: update IFLA_BRPORT_* constants.
	* src/xlat/rtnl_ifla_brport_attrs.in (IFLA_BRPORT_MCAST_N_GROUPS,
	IFLA_BRPORT_MCAST_MAX_GROUPS): New constants introduced by Linux kernel
	commit v6.3-rc1~162^2~139^2~8.
	* src/rtnl_link.c (ifla_brport_nla_decoders): Add
	IFLA_BRPORT_MCAST_N_GROUPS and IFLA_BRPORT_MCAST_MAX_GROUPS.
	* tests/nlattr_ifla_brport.c (main): Update expected output.
	* tests/nlattr_ifla_linkinfo.c (main): Likewise.
	* NEWS: Mention this.

	xlat: update IFLA_* constants.
	* src/xlat/rtnl_link_attrs.in (IFLA_GSO_IPV4_MAX_SIZE,
	IFLA_GRO_IPV4_MAX_SIZE): New constants introduced by Linux kernel commit
	v6.3-rc1~162^2~162^2~1.
	* src/rtnl_link.c (ifinfomsg_nla_decoders): Add IFLA_GSO_IPV4_MAX_SIZE
	and IFLA_GRO_IPV4_MAX_SIZE.
	* NEWS: Mention this.

	xlat: update F_SEAL_* constants.
	* xlat/f_seals.in (F_SEAL_EXEC): New constant introduced
	by Linux kernel commit v6.3-rc1~113^2~504.
	* NEWS: Mention this.

	bundled: update linux UAPI headers to v6.3-rc7.
	* bundled/linux/include/uapi/linux/btrfs.h: Update to headers_install'ed
	Linux kernel v6.3-rc7.
	* bundled/linux/include/uapi/linux/dcbnl.h: Likewise.
	* bundled/linux/include/uapi/linux/fcntl.h: Likewise.
	* bundled/linux/include/uapi/linux/if_bridge.h: Likewise.
	* bundled/linux/include/uapi/linux/if_link.h: Likewise.
	* bundled/linux/include/uapi/linux/in.h: Likewise.
	* bundled/linux/include/uapi/linux/io_uring.h: Likewise.
	* bundled/linux/include/uapi/linux/memfd.h: Likewise.
	* bundled/linux/include/uapi/linux/netfilter/nf_tables.h: Likewise.
	* bundled/linux/include/uapi/linux/netfilter/nfnetlink_cttimeout.h: Likewise.
	* bundled/linux/include/uapi/linux/prctl.h: Likewise.
	* bundled/linux/include/uapi/linux/rtnetlink.h: Likewise.
	* bundled/linux/include/uapi/linux/v4l2-controls.h: Likewise.
	* bundled/linux/include/uapi/linux/version.h: Likewise.
	* bundled/linux/include/uapi/linux/videodev2.h: Likewise.

2023-04-28  Dmitry V. Levin  <ldv@strace.io>

	tests: fix strace--syscall-limit test.
	* tests/strace--syscall-limit.c: Include "scno.h" and <fcntl.h>.
	(test_rmdir): Invoke unlinkat syscall instead of rmdir because the
	latter is not guaranteed to be present on all architectures nowadays.
	* tests/strace--syscall-limit.test: Filter unlinkat syscall instead of
	rmdir.

	Fixes: v6.2-15-g628b7eb7449e "tests: check -l/--syscall-limit options"

2023-04-27  Eugene Syromyatnikov  <evgsyr@gmail.com>

	tests/prctl-sve: fix prctl(PR_SVE_GET_VL) return expected value printing
	* tests/prctl-sve.c: Print the expected return value string based
	on the value returned, similarly to the way it is done
	in tests/prctl-sme.c:print_sme_vl_arg().

	Fixes: v5.13~8 "tests: improve test coverage of prctl syscall decoder"
	Closes: https://github.com/strace/strace/issues/251

2023-04-24  Sahil Siddiq  <icegambit91@gmail.com>

	tests/gen_tests: remove redundant option.
	--trace=all option for strace--syscall-limit-path in
	gen_tests.in can be omitted. Only 'chdir' and 'rmdir'
	are used to access 'invalid.dir' in the test and
	--trace='chdir,rmdir' is set in the corresponding
	bash script.

	* tests/gen_tests.in (strace--syscall-limit-path):
	Remove --trace=all option.

2023-04-22  Eugene Syromyatnikov  <evgsyr@gmail.com>

	tests: expand symlink test, add symlink-P test.
	* tests/.gitignore: Add symlink-P.
	* tests/Makefile.am (check_PROGRAMS): Likewise.
	* tests/gen_tests.in (symlink): Change the alignment from 32 to 20
	columns.
	(symlink-P): New test.
	* tests/symlink-P.c: New file.
	* tests/symlink.c: Add checks, print the output based on the presence
	of the PATH_TRACING macro.

	tests: expand link test, add link-P test.
	* tests/.gitignore: Add link-P.
	* tests/Makefile.am (check_PROGRAMS): Likewise.
	* tests/gen_tests.in (link): Add -a17 option.
	(link-P): New test.
	* tests/link-P.c: New file.
	* tests/link.c: Add checks, print the output based on the presence
	of the PATH_TRACING macro.

2023-04-22  Eugene Syromyatnikov  <evgsyr@gmail.com>

	Implement an ability to filter syscalls that operate on specific FDs.
	Introduce -e trace-fds= qualifier that allows specifying a set of FDs
	of interest, operations on which are to be traced.  Works in conjunction
	(or, more specifically, inclusive disjunction) with the path tracing
	functionality.

	* src/defs.h: Include "number_set.h".
	(tracing_fds): New external variable.
	(pathtrace_match_set): Add new fdset argument to the declaration.
	(pathtrace_match): Pass trace_fd_set in the new argument
	to the pathtrace_match_set call.
	(qualify_trace_fd): New function declaration.
	* src/filter_qualify.c (trace_fd_set): New variable.
	(qualify_trace_fd): New function.
	(qual_options): Add various FD tracing-related items.
	* src/number_set.h (trace_fd_set): New external variable declaration.
	* src/pathtrace.c (pathmatch, upathmatch): Bail out if set is NULL.
	(fdmatch): Add fdset argument, check fd for non-negativity and presence
	in fdset if fdset is non-NULL.
	(match_xselect_args): Add fdset argument, pass it to the fdmatch call.
	(pathtrace_match_set): Add fdset argument, pass it to fdmatch
	and match_xselect_args calls.
	* src/syscall.c (syscall_entering_trace): Check tracing_fds in addition
	to tracing_paths as a predicate for performing pathtrace_match check.
	* src/strace.c (tracing_fds): New variable.
	(init) <GETOPT_QUAL_TRACE_FD>: New enum item.
	(init) <longopts>: Add"trace-fds" option.
	(init) <case GETOPT_QUAL_TRACE_FD>: Call qualify_trace_fd.
	(usage): Document -e trace-fds.
	* doc/strace.1.in: Likewise.
	* tests/.gitignore: Add dup-trace-fds-0, dup-trace-fds-0-9,
	dup-trace-fds-0-P, dup-trace-fds-not-9, dup2-e-fd-0, dup2-e-fd-0-9,
	dup2-e-fd-0-P, dup2-e-fd-not-9, ppoll-e-trace-fds-23,
	ppoll-e-trace-fds-23-42, ppoll-e-trace-fds-not-9-42-P,
	select-trace-fd-7, select-trace-fd-7-9, and select-trace-fd-7-P.
	* tests/Makefile.am (check_PROGRAMS): Add ppoll-e-trace-fds-23,
	ppoll-e-trace-fds-23-42, ppoll-e-trace-fds-not-9-42-P,
	select-trace-fd-7, select-trace-fd-7-9, and select-trace-fd-7-P.
	* tests/dup-P.c (PATH_TRACING): Set to 1.
	* tests/dup2-P.c (PATH_TRACING): Likewise.
	* tests/dup.c: Accommodate test for checking tracing-fds functionality.
	* tests/dup2.c: Likewise.
	* tests/ppoll.c: Likewise.
	* tests/xselect.c: Likewise.
	* tests/gen_tests.in (dup-trace-fds-0, dup-trace-fds-0-9,
	dup-trace-fds-0-P, dup-trace-fds-not-9, dup2-e-fd-0, dup2-e-fd-0-9,
	dup2-e-fd-0-P, dup2-e-fd-not-9, ppoll-e-trace-fds-23,
	ppoll-e-trace-fds-23-42, ppoll-e-trace-fds-not-9-42-P,
	select-trace-fd-7, select-trace-fd-7-9, select-trace-fd-7-P): New tests.
	* tests/options-syntax.test: Add trace-fds-related option syntax checks.
	* tests/pure_executables.list: Add dup-trace-fds-0, dup-trace-fds-0-9,
	dup-trace-fds-0-P, dup-trace-fds-not-9, dup2-e-fd-0, dup2-e-fd-0-9,
	dup2-e-fd-0-P, and dup2-e-fd-not-9.
	* tests/dup-trace-fds-0-9.c: New file.
	* tests/dup-trace-fds-0-P.c: Likewise.
	* tests/dup-trace-fds-0.c: Likewise.
	* tests/dup-trace-fds-not-9.c: Likewise.
	* tests/dup2-e-fd-0-9.c: Likewise.
	* tests/dup2-e-fd-0-P.c: Likewise.
	* tests/dup2-e-fd-0.c: Likewise.
	* tests/dup2-e-fd-not-9.c: Likewise.
	* tests/ppoll-e-trace-fds-23-42.c: Likewise.
	* tests/ppoll-e-trace-fds-23.c: Likewise.
	* tests/ppoll-e-trace-fds-not-9-42-P.c: Likewise.
	* tests/select-trace-fd-7-9.c: Likewise.
	* tests/select-trace-fd-7-P.c: Likewise.
	* tests/select-trace-fd-7.c: Likewise.
	* NEWS: Mention it.

	Suggested-by: Marty Leisner <maleisner@gmail.com>
	Link: https://lists.strace.io/pipermail/strace-devel/2023-March/011209.html

2023-04-22  Eugene Syromyatnikov  <evgsyr@gmail.com>

	strauss: add a couple of new tips.
	* src/strauss.c (tips_tricks_tweaks): Add a note about the historical
	handling of "(deleted)" in file paths got from procfs and about system
	time accounting.

2023-04-22  Eugene Syromyatnikov  <evgsyr@gmail.com>

	strauss: rely on strace--tips test instead of forcibly trimming lines.
	The regression introduced in commit v5.19~99 "strauss: tips whitespace
	and phrasing cleanups" (and subsequently fixed in v6.2-6-g5b4f05f42
	"strauss: add missing line separators") highlights the issue
	with the current approach with respect to tips formatting: it masks
	the issues related to overlong lines in favor to the pretty formatting;
	however, the presence of a (working) strace--tips test, that checks the
	correctness of the tips rendering, makes this trimming superfluous.
	Drop it and rely on the testing with respect to the guaranteeing
	the proper wrapping of (overly) long tip lines.

	* src/strauss.c (print_totd): Do not provide precision to the format
	specification that prints tip line.

	References: v6.2-6-g5b4f05f42 "strauss: add missing line separators"

2023-04-22  Eugene Syromyatnikov  <evgsyr@gmail.com>

	tests: fix strace--tips test.
	Apparently, it has been broken in many places and checked the output
	incorrectly, so it was basically useless.  Make it a bit less broken
	by properly escaping all the regular expressions and implement the logic
	that actually checks the output against the expected patterns.

	* tests/strace--tips.test (IFS): Set the variable to avoid stripping
	whitespace from the read lines.
	(grep_ere_escape): A variant of sed_re_escape that also escapes "{",
	"}", and "|" characters.
	Add "-r" option to the read call to avoid interpreting backslashes,
	especially at the end of the line;  escape "|", "/", and "\" characters
	in $pat/$end/$btm definitions and fix the whitespace usage in there;
	use grep_ere_escape instead of sed_re_escape;  break after matching one
	last line against $btm if TIPS_FULL is not set;  pass "-x" option
	to the grep calls.

	Fixes: v5.18~38 "Raise strace awareness"

2023-04-04  Dmitry V. Levin  <ldv@strace.io>

	tests: double quote array expansions to avoid re-splitting elements.
	This fixes shellcheck SC2068.

2023-04-03  Sahil Siddiq  <icegambit91@gmail.com>
	    Dmitry V. Levin  <ldv@strace.io>

	tests: check -l/--syscall-limit options.
	These tests check the correctness of -l/--syscall-limit options
	when used with --trace, --trace-path and --status options.

	* tests/options-syntax.test: Check for invalid -l/--syscall-limit
	arguments.
	* tests/strace--syscall-limit.c: New file.
	* tests/strace--syscall-limit-path.c: Likewise.
	* tests/strace--syscall-limit-status.c: Likewise.
	* tests/strace--syscall-limit.test: New test.
	* tests/.gitignore: Add strace--syscall-limit,
	strace--syscall-limit-path, and strace--syscall-limit-status.
	* tests/Makefile.am (check_PROGRAMS): Likewise.
	(MISC_TESTS): Add strace--syscall-limit.test.
	* tests/gen_tests.in (strace--syscall-limit-path,
	strace--syscall-limit-status): New entries.

2023-04-03  Sahil Siddiq  <icegambit91@gmail.com>

	Document new -l/--syscall-limit options.
	* doc/strace.1.in: Document -l/--syscall-limit options.
	* NEWS: Mention them.

2023-04-03  Sahil Siddiq  <icegambit91@gmail.com>

	Introduce -l/--syscall-limit options.
	Add new options to detach strace after capturing the specified number
	of syscalls.

	* src/defs.h (syscall_limit): New variable declaration.
	* src/strace.c (syscall_limit): New variable.
	(usage): Mention new options.
	(init): Handle them.
	(next_event): Break the event loop when syscall_limit == 0.
	* src/syscall.c (syscall_exiting_trace): Update syscall_limit.

	Resolves: https://github.com/strace/strace/issues/179

2023-04-03  Kossi Glokpor  <hotkatz32@gmail.com>

	open_by_handle_at: add RVAL_FD to return value.
	Mark the return value of open_by_handle_at decoder as a file descriptor.

	* src/file_handle.c (SYS_FUNC(open_by_handle_at)): Add RVAL_FD flag
	to the return value.

	Fixes: v4.11~121 "Implement name_to_handle_at and open_by_handle_at syscalls decoding"

2023-03-31  Sven Schnelle  <svens@linux.ibm.com>

	tests/membarrier: add new combination of flags.
	linux v6.3 reports a new combination of flags when
	ARCH_HAS_MEMBARRIER_SYNC_CORE is enabled.


	* tests/membarrier.c (main): Update expected output.

2023-04-01  Dmitry V. Levin  <ldv@strace.io>

	Make --tips more easily available.
	Allow --tips option to be used without any tracing, so that tips, tricks
	and tweaks could be displayed without running any program or attaching
	to any process.

	* src/strace.c (init): When --tips is specified without running any
	program or attaching to any process, show the tips and exit.
	* tests/strace--tips-0.exp: New file.
	* tests/Makefile.am (check_DATA): Add it.
	* tests/strace--tips.test: Check that simple "strace --tips=0" works
	as expected.
	* tests/options-syntax.test: Update expected output.

2023-03-30  Dmitry V. Levin  <ldv@strace.io>

	treewide: fix unnecessary $ on arithmetic variables.
	This silences shellcheck SC2004.

2023-03-27  Gleb Fotengauer-Malinovskiy  <glebfm@altlinux.org>

	Update ioctl entries from linux v6.3.
	* src/linux/32/ioctls_inc_align16.h: Update from linux v6.3-rc4 using
	ioctls_gen.sh.
	* src/linux/32/ioctls_inc_align32.h: Likewise.
	* src/linux/32/ioctls_inc_align64.h: Likewise.
	* src/linux/64/ioctls_inc.h: Likewise.
	* src/linux/x32/ioctls_inc0.h: Likewise.
	* src/linux/s390/ioctls_arch0.h: Likewise.
	* src/linux/s390x/ioctls_arch0.h: Likewise.
	* NEWS: Mention this.

2023-03-20  adrien-n  <adrien.nader@canonical.com>

	debian/control: fix wording in description.
	This commit incorporates a change from Debian's packaging:
	"a another" is replaced with "another".

	Note that there is another change in Debian packaging which
	I'm skipping on purpose since it is not correct as far as I know:
	"tracer, i.e." becoming "tracer: i.e.".

2023-03-10  Jakub Wilk  <jwilk@jwilk.net>

	strauss: add missing line separators.
	* src/strauss.c (tips_tricks_tweaks): Add missing line separators.
	(MAX_TIP_LINES): Bump.

	Resolves: https://github.com/strace/strace/pull/245

2023-03-09  Sven Schnelle  <svens@linux.ibm.com>

	Add config3 field to struct perf_event_attr.
	Linux kernel commit 09519ec3b19 ("perf: Add perf_event_attr::config3")
	aka v6.3-rc1~29^2~13 added a new config3 field to struct
	perf_event_attr.  Add this field and implement its decoding in strace,
	which also fixes compilation of tests because of an array out-of-bounds
	warning in tests/perf_event.c.


	* bundled/linux/include/uapi/linux/perf_event.h: Update to
	headers_install'ed Linux kernel v6.3-rc1.
	* src/perf_event_struct.h (struct perf_event_attr): Add config3 field.
	* src/perf.c (print_perf_event_attr): Print config3 field.
	* tests/perf_event_open.c (print_event_attr): Check it.

2023-03-05  Elvira Khabirova  <lineprinter0@gmail.com>

	Add a configure flag for installing tests.
	--enable-install-tests=yes installs binaries and scripts
	from the test suite to $libexec/strace.

	This flag does not install everything necessary to run the test suite
	(no harness), but at least installs the binaries and the scripts.

	This can be useful when debugging various targets and how strace
	behaves on them.

	This can also be extended later with a standalone test harness
	that would allow for an easier testing.

	* configure.ac: Add --enable-install-tests.
	* tests/Makefile.am [ENABLE_INSTALL_TESTS] (testslibexecdir,
	testslibexec_PROGRAMS, testslibexec_DATA, testslibexec_SCRIPTS): New variables.

2023-03-05  Elvira Khabirova  <lineprinter0@gmail.com>

	tests: split EXTRA_DIST.
	Split EXTRA_DIST into check_SCRIPTS, check_DATA and EXTRA_DIST.

	Place scripts required for running the tests into check_SCRIPTS,
	auxiliary files required for running the tests into check_DATA,
	and everything else (= build-time required) into EXTRA_DIST.

	* tests/Makefile.am (check_SCRIPTS, check_DATA): New variables.
	(EXTRA_DIST): Shrink. Use check_SCRIPTS and check_DATA.

2023-03-05  Elvira Khabirova  <lineprinter0@gmail.com>

	mips: fix raw_syscall_0.
	Some of the tests use a custom function (raw_syscall_0)
	for syscall invocation.

	The implementation for mips was flawed: it unconditionally
	clobbered "hi" and "lo", which is not valid for MIPS R6,
	because these targets lack those registers w/o DSP extension.

	GCC 10+ refuses to compile such constructs: [1], [2].

	Fix the syscall invocation implementation for mips.

	[1] https://gcc.gnu.org/git/?p=gcc.git&a=commit;h=0a59215131c02dee4c8829f93d1ee678647614da
	[2] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91233

	* src/linux/mips/raw_syscall.h (SYSCALL_CLOBBERLIST): Define.
	(raw_syscall_0): Use it.

2023-02-27  Dmitry V. Levin  <ldv@strace.io>

	Post-release administrivia.
	* NEWS: Add a header line for the next release.
	* debian/changelog.in: Add a changelog entry for 6.2-1.
	* strace.spec.in: Likewise.

2023-02-26  Dmitry V. Levin  <ldv@strace.io>

	Prepare for 6.2 release.
	* NEWS: Update for 6.2 release.

	Update copyright headers.
	Headers updated automatically using maint/update_copyright_years.sh
	script.

2023-02-24  Dmitry V. Levin  <ldv@strace.io>

	Fix build on alpha.
	Workaround a bug in glibc headers that fail to provide
	si_trapno field in their definition of siginfo_t on alpha.

	Link: https://sourceware.org/bugzilla/show_bug.cgi?id=30173
	Resolves: https://github.com/strace/strace/issues/220

	* configure.ac (AC_CHECK_MEMBERS): Add siginfo_t.si_trapno.
	* src/printsiginfo.c [ALPHA]: Guard use of si_trapno with
	HAVE_SIGINFO_T_SI_TRAPNO.
	* tests/ptrace.c [ALPHA]: Likewise.
	* NEWS: Mention this fix.

2023-02-23  Dmitry V. Levin  <ldv@strace.io>

	filter_seccomp: do not call PR_SET_NO_NEW_PRIVS if privileged enough.
	If strace process is privileged enough to add SECCOMP_MODE_FILTER
	without PR_SET_NO_NEW_PRIVS, there is no need to do the latter.

	* src/filter_seccomp.c (init_seccomp_filter): Try to add
	SECCOMP_MODE_FILTER first, and if it failed with EACCES, do
	PR_SET_NO_NEW_PRIVS and try to add SECCOMP_MODE_FILTER again.

2023-02-22  Masatake YAMATO  <yamato@redhat.com>

	NEWS: mention collision resolution for overlapping ioctl commands.
	Resolves: https://github.com/strace/strace/pull/239

2023-02-21  Masatake YAMATO  <yamato@redhat.com>

	dyxlat: make the type of the xlat created by dyxlat_alloc customizable.
	* src/defs.h (dyxlat_alloc): Add xlat_type argument.
	* src/dyxlat.c (dyxlat_alloc): Likewise.
	* src/socketutils.c (genl_families_xlat): Pass XT_NORMAL to dyxlat_alloc
	invocation.

2023-02-20  Masatake YAMATO  <yamato@redhat.com>

	ioctl: use finfo as hints for resolving overlapping ioctl commands.
	Such an overlapping can be observed, e.g. when running vi under strace:

	  ioctl(0, SNDCTL_TMR_START or TCSETS, {B38400 ...

	After this change, when the file descriptor corresponds to a terminal
	device, strace would be able to resolve the collision between ioctl
	commands from different subsystems:

	  ioctl(0, TCSETS, {B38400 ...

	* src/defs.h (term_ioctl_decode_command_number): New function
	declaration.
	* src/ioctl.c (ioctl_decode_command_number): Add a new argument
	for passing finfo that can be used as hints for decoding ioctl commands.
	Handle the code `T'.
	(SYS_FUNC(ioctl)): Pass finfo as hints to ioctl_decode_command_number.
	* src/term.c: Include "xlat/term_cmds_overlapping.h".
	(term_ioctl_decode_command_number): Decode the command in
	this earlier stage if the corresponding file descriptor corresponds
	to a terminal device.
	* src/xlat/term_cmds_overlapping.in: New file listing overlapping
	tty ioctl commands.
	* tests/ioctl_termios.c (main): Extend cmds[] in checks[].
	(main::checks::cmds): Add new member "pass_invalid_fd".
	Omit " or ..." substring in case of TCSETS, TCSETSW, and TCSETSF for
	a valid tty descriptor.
	Add test commands for invalid descriptors.

2023-02-20  Masatake YAMATO  <yamato@redhat.com>

	ioctl: pass finfo to ioctl_decode() as hints for decoding.
	Just pass the data, a real use case comes in subsequent commits.

	* src/ioctl.c (ioctl_decode): Add "finfo" argument.
	(SYS_FUNC(ioctl)): Pass the finfo for the target fd to ioctl_decode.

2023-02-20  Masatake YAMATO  <yamato@redhat.com>

	ioctl: prepare finfo only when ioctl command can overlap.
	If an ioctl decoder does not deal with overlapping commands,
	avoid issuing extra syscalls required to obtain finfo.

	* src/ioctl.c (ioctl_command_overlaps): New function.
	(SYS_FUNC(ioctl)): Call getfdpath_pid only when ioctl_command_overlaps
	returns true.

2023-02-20  Masatake YAMATO  <yamato@redhat.com>

	ioctl: collect finfo just before decoding ioctl command.
	This way finfo can be used as hints for decoding ioctl commands.

	* src/defs.h (get_finfo_for_dev): New declaration.
	(printfd_with_finfo): New inline function - a thin wrapper around
	printfd_pid_with_finfo.
	* src/util.c (get_finfo_for_dev): Remove static modifier to
	make it reusable the ioctl syscall decoder.
	(SYS_FUNC(ioctl)): Call get_finfo_for_dev and printfd_with_finfo
	instead of calling printfd.

2023-02-19  Masatake YAMATO  <yamato@redhat.com>

	Allow to pass pre-filled finfo data to printdev() from upper layers.
	printdev() used to collect struct finfo data just before printing.
	However, if the finfo data can be filled somewhere else, printdev()
	does not have to collect the finfo data by itself.

	* src/defs.h (printfd_pid_with_finfo): New function declaration.
	(printfd_pid): Turn into a thin wrapper around printfd_pid_with_finfo.
	(struct finfo): New member "deleted".
	* src/util.c (get_finfo_for_dev): Initialize "deleted" member of finfo.
	(printdev): Add finfo argument.  If non-NULL is specified as finfo
	argument, omit get_finfo_for_dev invocation.
	(printfd_pid): Rename to printfd_pid_with_finfo, add finfo argument
	and pass it on to printdev.

2023-02-19  Masatake YAMATO  <yamato@redhat.com>

	util: introduce get_finfo_for_dev function.
	printdev() function does two things: it first obtains the information
	about the given fd and then prints it.  Introduce get_finfo_for_dev()
	to implement the first part of printdev().

	struct finfo is a new data structure for keeping information passed from
	get_finfo_for_dev() to printdev().

	* src/defs.h (struct finfo): New data structure.
	* src/utils.c (get_finfo_for_dev): New function derived from printdev.
	(printdev): Use it.

2023-02-19  Dmitry V. Levin  <ldv@strace.io>

	tests: enhance ptrace_syscall_info error diagnostics.
	* tests/ptrace_syscall_info.c (test_none, test_entry, test_exit): In
	case of a fatal mismatch, print more expected output before termination,
	this helps in diagnostics of linux kernel bugs.

2023-02-18  Dmitry V. Levin  <ldv@strace.io>

	Update .mailmap.
	* .mailmap: Update email addresses of Elvira Khabirova.

2023-02-18  Elvira Khabirova  <lineprinter0@gmail.com>

	tests: remove getpid and getppid from check_PROGRAMS.
	getpid and getppid are already listed in $(PURE_EXECUTABLES).
	Remove the duplicate entries.

	* tests/Makefile.am (check_PROGRAMS): Remove getpid and getppid.

	Fixes: v4.17~123 ("tests: add tests for getpid and getppid syscalls")

2023-02-15  Dmitry V. Levin  <ldv@strace.io>

	strace: declare nflag variable as static.
	Apparently, nflag is not used outside the compilation unit where it is
	defined.

	* src/strace.c (nflag): Add static qualifier.

	Reported-by: Masatake YAMATO <yamato@redhat.com>
	Fixes: v5.9~55 "strace: add an option for printing syscall numbers"

2023-02-14  Dmitry V. Levin  <ldv@strace.io>

	treewide: replace "sed -r" with "sed -E"
	Use -E option instead of -r to enable use extended regular expression
	syntax in sed expressions.  It has been supported for years by GNU sed,
	and is now included in POSIX.

	Link: https://www.austingroupbugs.net/view.php?id=528
	Resolves: https://github.com/strace/strace/issues/216

2023-02-13  Dmitry V. Levin  <ldv@strace.io>

	xlat: update V4L2_CTRL_TYPE_* constants.
	* src/xlat/v4l2_control_types.in (V4L2_CTRL_TYPE_MPEG2_QUANTISATION,
	V4L2_CTRL_TYPE_MPEG2_SEQUENCE, V4L2_CTRL_TYPE_MPEG2_PICTURE): New
	constants introduced by Linux kernel commit v5.14-rc1~165^2~241.
	(V4L2_CTRL_TYPE_VP9_COMPRESSED_HDR, V4L2_CTRL_TYPE_VP9_FRAME): New
	constants introduced by Linux kernel commit v5.17-rc1~114^2~207.
	(V4L2_CTRL_TYPE_HEVC_SPS, V4L2_CTRL_TYPE_HEVC_PPS,
	V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS, V4L2_CTRL_TYPE_HEVC_SCALING_MATRIX,
	V4L2_CTRL_TYPE_HEVC_DECODE_PARAMS): New constants introduced by Linux
	kernel commit v6.0-rc1~139^2~93.
	* NEWS: Mention this change.

	xlat: update V4L2_CTRL_FLAG_* constants.
	* src/xlat/v4l2_control_flags.in (V4L2_CTRL_FLAG_DYNAMIC_ARRAY): New
	constant introduced by Linux kernel commit v6.0-rc1~139^2~104.
	* tests/ioctl_v4l2-success.c (main): Update expected output.
	* NEWS: Mention this change.

	xlat: update V4L2_PIX_FMT_* constants.
	* src/xlat/v4l2_pix_fmts.in (V4L2_PIX_FMT_P010): New constant
	introduced by Linux kernel commit v6.0-rc1~139^2~420.
	(V4L2_PIX_FMT_YUVA32, V4L2_PIX_FMT_YUVX32): New constants
	introduced by Linux kernel commit v6.0-rc1~139^2~126.
	(V4L2_PIX_FMT_HEVC_SLICE): New constant introduced by Linux kernel
	commit v6.0-rc1~139^2~94.
	(V4L2_PIX_FMT_P010_4L4): New constant introduced by Linux kernel
	commit v6.0-rc1~139^2~73.
	(V4L2_PIX_FMT_AJPG): New constant introduced by Linux kernel commit
	v6.2-rc1~125^2~249^2~13.
	V4L2_PIX_FMT_NV12_8L128, V4L2_PIX_FMT_NV12_10BE_8L128): New constants
	introduced by Linux kernel commit v6.2-rc1~125^2~50.
	* NEWS: Mention this change.

	xlat: update V4L2_CID_* constants.
	* src/xlat/v4l2_control_id_bases.in (V4L2_CID_USER_ISL7998X_BASE): New
	constant introduced by Linux kernel commit v5.18-rc1~153^2~82^2~6.
	(V4L2_CID_USER_DW100_BASE): New constant introduced by Linux kernel
	commit v6.1-rc1~130^2~98.
	(V4L2_CID_USER_ASPEED_BASE): New constant introduced by Linux kernel
	commit v6.2-rc1~125^2~249^2~12.
	* src/xlat/v4l2_control_ids.in (V4L2_CID_COLORFX_RGB): New constant
	introduced by Linux kernel commit v5.17-rc1~114^2~388.
	* NEWS: Mention this change.

2023-02-12  Dmitry V. Levin  <ldv@strace.io>

	xlat: update NFT_MSG_* constants.
	* src/xlat/nf_nftables_msg_types.in (NFT_MSG_GETRULE_RESET): New
	constant introduced by Linux kernel commit v6.2-rc1~99^2~210^2~2.
	* src/netlink.c (decode_nlmsg_flags_netfilter) Handle it.
	* NEWS: Mention this change.

2023-02-11  Dmitry V. Levin  <ldv@strace.io>

	xlat: update NTF_EXT_* constants.
	* src/xlat/neighbor_cache_entry_ext_flags.in (NTF_EXT_LOCKED): New
	constant introduced by Linux kernel commit v6.2-rc1~99^2~297^2~1.
	* tests/nlattr_ndmsg.c (main): Update expected output.
	* NEWS: Mention this change.

2023-02-10  Dmitry V. Levin  <ldv@strace.io>

	xlat: update LANDLOCK_ACCESS_FS_* constants.
	* src/xlat/landlock_ruleset_access_fs.in (LANDLOCK_ACCESS_FS_TRUNCATE):
	New constant introduced by Linux kernel commit v6.2-rc1~138^2~8.
	* tests/landlock_add_rule.c (main): Update expected output.
	* tests/landlock_create_ruleset.c: Likewise.
	* NEWS: Mention this change.

2023-02-09  Dmitry V. Levin  <ldv@strace.io>

	xlat: update KVM_* constants.
	* src/xlat/kvm_cap.in (KVM_CAP_S390_PROTECTED_ASYNC_DISABLE): New
	constant introduced by Linux kernel commit v6.2-rc1~77^2~5^2~5.
	(KVM_CAP_DIRTY_LOG_RING_WITH_BITMAP): New constant introduced
	by Linux kernel commit v6.2-rc1~77^2~4.
	* NEWS: Mention this change.

2023-02-08  Dmitry V. Levin  <ldv@strace.io>

	Revert "Update .mailmap"
	* .mailmap: Remove email addresses of Sven Schnelle per request.

	This reverts commit 3c26d12962a8d907f276d218bf9acc2e522e9340.

