Noteworthy changes in strace 5.15 (2021-12-01)

• Improvements

  • Implemented --strings-in-hex=non-ascii-chars option for using hexadecimal numbers instead of octal ones in escape sequences in the output strings.
  • Implemented --decode-pids=comm option (and its alias -Y) for printing command names for PIDs.
  • Implemented --decode-pids=pidns as an alias to --pidns-translation option.
  • Implemented printing of current working directory when AT_FDCWD constant is used with --decode-fds=path option enabled.
  • Improved printing of syscall names in places where the associated AUDIT_ARCH_* value is present (ptrace PTRACE_GET_SYSCALL_INFO request, SIGSYS siginfo_t).
  • Implemented decoding of process_mrelease syscall, introduced in Linux 5.15.
  • Implemented decoding of SECCOMP_GET_NOTIF_SIZES operation of seccomp syscall.
  • Implemented decoding of HDIO_*, KD*, and SECCOMP_* ioctl commands.
  • Implemented decoding of RTM_NEWCACHEREPORT, RTM_{NEW,DEL,GET}NEXTHOP, and RTM_{NEW,GET}STATS NETLINK_ROUTE netlink messages.
  • Implemented decoding of AF_ALG, AF_IEEE802154, AF_MCTP, AF_NFC, AF_QIPCRTR, AF_RXRPC, AF_VSOCK, and AF_XDP socket addresses.
  • Implemented decoding of AF_BRIDGE and AF_MCTP protocols for IFLA_AF_SPEC netlink attribute.
  • Implemented decoding of IFLA_BR_MCAST_QUERIER_STATE, IFLA_BR_MULTI_BOOLOPT, IFLA_INET6_RA_MTU, IFLA_INFO_SLAVE_DATA, and IFLA_VFINFO_LIST netlink attributes.
  • Enhanced decoding of io_uring_register and times syscalls.
  • Enhanced IFLA_BR_FORWARD_DELAY, IFLA_BR_MAX_AGE, IFLA_EXT_MASK, IFLA_PROTINFO, *_INTVL, and *_TIMER netlink attribute decoding.
  • Enhanced decoding of AF_IPX and AF_NETLINK socket addresses.
  • Updated lists o AF_*, ARPHRD_*, BTRFS_*, DEVCONF_*, DM_*, ETH_P_*, FAN_REPORT_*, IORING_*, MOVE_MOUNT_*, MPOL_*, PACKET_*, RTM_*, SO_*, and XFRM_MSG_* constants.
  • Updated lists of ioctl commands from Linux 5.15.

• Bug fixes

  • Fixed printing of struct bpf_prog_info.map_ids array.
  • Fixed behaviour of dev, pidfd, and socket arguments of the --print-fds option to no longer imply the path argument.
  • Fixed insufficient buffer size used for network interface name printing, that previously led to assertions on attempts of printing interface names that require quoting, for example, names longer than 4 characters in -xx mode (addresses RHBZ bug #2028146).

Contributors

This release was made possible by the contributions of many people.
The maintainers are grateful to everyone who has contributed
changes or bug reports. These include:

• Alex Xu (Hello71)
• Dmitry V. Levin
• Elvira Khabirova
• Eugene Syromyatnikov
• Gleb Fotengauer-Malinovskiy
• Masatake YAMATO
• Paulo Andrade
• Renaud Métrich
• Srikavin Ramkumar
• Victor Krapivensky
• Ákos Uzonyi

Please refer to the CREDITS file for the full list of strace contributors.

Downloads

Please ignore so called "Source code" links provided by github, they are useless.