- Update to strace 4.23
  * Changes in behaviour
    * On x32 personality, 64-bit syscalls (such as readv) are now shown with "#64"
      suffix instead of "64:" prefix.
    * Changed error number output format: error numbers are consistently
      printed as "-1 ECONST (Error description)"
      for known errors and as "-1 (errno 123)" for unknown errors,
      regardless of -e raw qualification settings.
    * Unfetchable addresses inside arrays are now printed as comments.
    * Obsolete IA-32 mode syscall names are no longer printed on ia64.
  * Improvements
    * Implemented libdw backend for -k option, configured at build time
      using --with-libdw option.
    * Added -X option for configuring xlat output formatting (addresses
      Debian bug #692915).
    * Added support for personality designation ("64", "32", or "x32") to syscall
      qualifications in -e trace expressions.
    * Implemented injection of syscalls with no side effects as an alternative
      to injection of an invalid syscall (-e inject=SET:syscall= expression).
    * Improved support for reproducible builds (addresses Debian bug #896016).
    * Implemented decoding of BPF_PROG_QUERY and BPF_RAW_TRACEPOINT_OPEN bpf
      syscall commands.
    * Implemented decoding of INOTIFY_IOC_SETNEXTWD and PERF_EVENT_IOC_* ioctl
      commands.
    * Implemented decoding of PR_GET_SPECULATION_CTRL and PR_SET_SPECULATION_CTRL
      prctl syscall options.
    * Enhanced decoding of bpf, getsockopt, setsockopt, and socket syscalls.
    * Enhanced decoding of NETLINK_KOBJECT_UEVENT and NETLINK_ROUTE protocols.
    * Enhanced decoding of *_DIAG_MEMINFO netlink attributes.
    * Enhanced decoding of BTRFS_*, FS_IOC_*, SIOCGIFHWADDR, and SIOCSIFHWADDR

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- Update to strace 4.22
  * Changes in behaviour
    * When printing string data, '8' and '9' following an octal escape sequence
      no longer lead to unabbreviated octal escape sequence output, as they used
      to do.
    * Angle brackets are now printed as octal number escape sequences
      in the output of paths associated with file descriptors.
    * Data dump for write syscalls (-e write) is performed regardless
      of successfulness of these syscall (addresses Debian bug #436284).
    * -r and -t options are now affect output independently.  Previously,
      -r option led to ignoring of the -t option (addresses Debian bug #466195).
  * Improvements
    * Implemented delay injection (-e inject=SET:delay_enter= and
      -e inject=SET:delay_exit= options).
    * Added -A option for opening output files in append mode
      (addresses Debian bug #528488).
    * IPv6 addresses shown in socket information in -yy mode are now printed
      in brackets.
    * Enhanced decoding of bpf, prctl and ptrace syscalls.
    * Enhanced decoding of BTRFS_IOC_INO_PATHS, BTRFS_IOC_LOGICAL_INO, and PTP_*
      ioctl commands.
    * Enhanced NETLINK_ROUTE protocol decoding.
    * Updated lists of signal codes.
    * Updated lists of BPF_*, BTN_*, ETH_P_*, INET_DIAG_BC_*, KEY_*, POLL*, RWF_*,
      SCHED_FLAG_*, SCTP_* and error constants.
    * Implemented block/character device number printing in -yy mode.
    * Known pixel/SDR format names are printed as comments for pixelformat fields
      in v4l2 structures.
    * Enhanced decoding of kern_features syscall.
    * Enhanced NETLINK_NETFILTER netlink protocol decoder.

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- Update to strace 4.21
  * Changes in behaviour
    * Warning is now issued when -F option is used.
    * Warning is now issued when a tracee with unsupported personality
      is attached.
    * Unknown syscall numbers are now printed in hexadecimal form.
  * Improvements
    * Implemented decoding of netlink descriptor attributes as file descriptors.
    * Implemented decoding of hugetlb page size selection flags.
    * Implemented decoding of BPF_PROG_TEST_RUN, BPF_PROG_GET_NEXT_ID,
      BPF_MAP_GET_NEXT_ID, BPF_PROG_GET_FD_BY_ID, BPF_MAP_GET_FD_BY_ID,
      and BPF_OBJ_GET_INFO_BY_FD commands of bpf syscall.
    * Enhanced decoding of get_thread_area, memfd_create, modify_ldt,
      perf_event_open, reboot, s390_guarded_storage, s390_pcio_mmio_read,
      s390_pci_mmio_write, s390_runtime_instr, s390_sthyi, set_thread_area,
      and shmget syscalls.
    * Implemented decoding of KVM_* and DM_LIST_DEVICES ioctl commands.
    * Implemented decoding of riscv_flush_icache syscall.
    * Enhanced decoding of getsockopt and setsockopt syscalls for SOL_NETLINK
      level.
    * Enhanced decoding of BPF_MAP_CREATE command of bpf syscall.
    * Print values returned by mq_open syscall and first arguments
      of mq_getsetattr, mq_notify, mq_timedreceive, and mq_timedsend syscalls
      as file descriptors.
    * Added decoding of get_tls syscall on arm.
    * Added -e trace=%pure option for tracing system calls with no arguments that
      never fail.
    * Updated lists of IPV6_*, MAP_*, MEMBARRIER_CMD_*, MSG_*, NT_*, PKEY_*,
      SHM_*, and TCP_* constants.
    * Added manual page for the strace-log-merge command.

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- add update-futex-test-in-accordance-with-kernel-s-v4.15-.patch

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- Update to strace 4.20
  * Improvements
    * Implemented decoding of NETLINK_NETFILTER netlink message types and flags.
    * Implemented decoding of SECCOMP_GET_ACTION_AVAIL operation of seccomp
      syscall.
    * Updated lists of ARPHRD_*, BPF_*, ETH_P_*, LOOP_*, MADV_*,
      MEMBARRIER_CMD_*, MFD_*, SECCOMP_*, SO_*, SOL_*, TCP_*, and UFFD_FEATURE_*
      constants.
    * Added decoding of statx syscall on hppa.
    * Updated lists of ioctl commands from Linux 4.14.
  * Bug fixes
    * Fixed powerpc personality support on powerpc64.

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- Update to strace 4.19
  * Changes in behaviour
    * Changed formatting of personality names on tile architecture in order
      to make it in line with other multi-personality architectures.
    * Changed field output order in struct v4l2_requestbuffers to improve in/out
      field formatting.
    * Changed handling of multiple signal= specifications in an injection
      expression: multiple specification now leads to error instead of implicit
      usage the last specification.
  * Improvements
    * Enhanced decoding of optlen argument of getsockopt syscall.
    * Enhanced decoding of SO_LINGER option of getsockopt and setsockopt syscalls.
    * Enhanced decoding of SO_PEERCRED option of getsockopt syscall.
    * Enhanced decoding of IP_ADD_MEMBERSHIP, IP_DROP_MEMBERSHIP,
      IPV6_ADD_MEMBERSHIP, IPV6_DROP_MEMBERSHIP, IPV6_JOIN_ANYCAST,
      IPV6_LEAVE_ANYCAST, MCAST_JOIN_GROUP, and MCAST_LEAVE_GROUP options
      of setsockopt syscall.
    * Enhanced decoding of KEYCTL_DH_COMPUTE operation of keyctl syscall
      (KDF parameters decoding).
    * Implemented decoding of KEYCTL_RESTRICT_KEYRING operation of keyctl syscall.
    * Enhanced decoding of UFFDIO_API ioctl command.
    * Enhanced decoding of BPF_PROG_LOAD, BPF_MAP_CREATE, BPF_MAP_LOOKUP_ELEM,
      and BPF_MAP_GET_NEXT_KEY commands of bpf syscall.
    * Implemented decoding of linux socket filter programs specified
      for SO_ATTACH_FILTER and SO_ATTACH_REUSEPORT_CBPF socket options.
    * Implemented decoding of inet_diag_req_v2, inet_diag_req_compat,
      packet_diag_msg, and smc_diag_msg netlink attributes of NETLINK_SOCK_DIAG.
    * Implemented NETLINK_SELINUX protocol specific decoding.
    * Implemented decoding of netlink message ack flags.
    * Implemented decoding of nlmsgerr netlink attributes.

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- Update to strace 4.18
  * Improvements
    * Implemented decoding of SCM_TIMESTAMP* control messages.
    * Implemented decoding of netlink NLMSG_DONE messages.
    * Implemented decoding of netlink generic nlmsg_type and nlmsg_flags.
    * Implemented decoding of NETLINK_AUDIT, NETLINK_NETFILTER, NETLINK_ROUTE,
      NETLINK_SELINUX, NETLINK_SOCK_DIAG, and NETLINK_XFRM message types.
    * Implemented decoding of NETLINK_GENERIC protocol families.
    * Implemented basic protocol specific decoding of AF_INET, AF_INET6,
      AF_NETLINK, AF_PACKET, AF_SMC, and AF_UNIX messages of NETLINK_SOCK_DIAG.
    * Implemented basic decoding of netlink attributes.
    * Implemented basic protocol specific decoding of AF_INET, AF_NETLINK,
      AF_PACKET, AF_SMC, and AF_UNIX netlink attributes of NETLINK_SOCK_DIAG.
    * Implemented decoding of inet_diag_msg, netlink_diag_msg, and unix_diag_msg
      netlink attributes of NETLINK_SOCK_DIAG.
    * Updated lists of ARPHRD_*, KEYCTL_*, NDIAG_SHOW_*, RTM_*, SCM_*, SCTP_*,
      SO_*, V4L2_*, and prctl ARCH_* constants.
    * Updated lists of ioctl commands from Linux 4.12.
  * Bug fixes
    * In interactive mode (-I2), those signals that were blocked at startup
      will remain blocked for the whole period of strace execution.
    * strace no longer resets SIGCHLD handler in tracees to the default action.
    * When traced command is terminated by a blocked signal, strace unblocks
      that signal to ensure its own termination with the same signal.
    * Fixed corner cases in decoding of old sigaction syscall.
    * Fixed build with old kernel headers on mips.
    * Fixed build on aarch64 and tile with glibc >= 2.26.
    * Fixed build on arc and nios2.

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- Update to strace 4.17
  * Changes in command line syntax
    * Syscall classes specified in -e trace= option now have % prefix (like
      -e trace=%process).  Old style class names without leading % are still
      supported, but considered deprecated now.
  * Improvements
    * Optimized syscall filtering.
    * Improved representation of timestamps.
    * Enhanced decoding of sched_setattr syscall.
    * Added -e trace=%stat option for tracing variants of stat syscall.
    * Added -e trace=%lstat option for tracing variants of lstat syscall.
    * Added -e trace=%fstat option for tracing variants of fstat and fstatat
      syscalls.
    * Added -e trace=%%stat option for tracing syscalls used for querying file
      status information (stat, lstat, fstat, fstatat, statx, and their
      variations).
    * Added -e trace=%statfs option for tracing statfs, statfs64 and statvfs
      syscalls.
    * Added -e trace=%fstatfs option for tracing fstatfs, fstatfs64 and fstatvfs
      syscalls.
    * Added -e trace=%%statfs option for tracing syscalls used for querying file
      system statistics information (statfs-like, fstatfs-like and ustat).
    * Added -e trace=/regex option for filtering syscalls using regular
      expressions.
    * Added support for prepending of question mark before syscall qualification
      in -e trace expressions in order to suppress error in case no syscalls
      matched the provided qualification.
    * Implemented decoding of signal mask in rt_sigreturn syscall on alpha, arc,
      arm, avr32, bfin, cris, hppa, m68k, metag, microblaze, mips, nios2, or1k,
      powerpc, powerpc64, riscv, sh, sh64, sparc, sparc64, tile, x86, and xtensa

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- Update to strace 4.16
  * Improvements
    * Implemented syscall return value injection (-e inject=SET:retval= option).
    * Implemented signal injection (-e inject=SET:signal= option).
    * Implemented decoding of SUID_DUMP_* constants in PR_[GS]ET_DUMPABLE.
    * Implemented decoding of all SG_* ioctl commands.
    * Implemented decoding of ustat syscall.
    * Implemented decoding of BPF_OBJ_PIN, BPF_OBJ_GET, BPF_PROG_ATTACH,
      and BPF_PROG_DETACH commands of bpf syscall.
    * Enhanced decoding of sg_io_hdr and sg_io_v4 structures.
    * Enhanced decoding of get_robust_list, getrandom, io_submit, set_robust_list
      syscalls.
    * Enhanced decoding of entities of kernel long type on x32 and mips n32 ABIs.
    * Updated lists of IP_*, IPV6_*, and LOOP_* constants.
    * Updated lists of ioctl commands from Linux 4.10.
    * Added decoding of recently added syscalls on avr32, microblaze, ppc,
      and ppc64.
  * Bug fixes
    * Fixed pathmatch of oldselect syscall on 64-bit architectures.
    * Fixed decoding of mmap2 syscall on s390 when arguments are not available.
    * Fixed decoding of kexec_file_load, mprotect, pkey_mprotect, prctl, preadv*,
      and pwritev* syscalls on x32.
    * Fixed printing of string arguments of getxattr and setxattr syscalls
      when -s option is used to limit the printed string size.
    * Fixed decoding of ifconf, ifreq, and loop_info structures on non-native
      personalities.
    * Fixed decoding of SG_* and LOOP_* ioctl commands.
    * Fixed build on mips with musl libc.
    * Fixed cross-building of ioctlsort.
    * Applied minor formatting fixes to the manual page.

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