Tags give the ability to mark specific points in history as being important
  • v5.11   Noteworthy changes in strace 5.11 (2021-02-17) ============================================== * Improvements * Implemented poke injection (--inject=SET:poke_enter= and --inject=SET:poke_exit= options). * Implemented decoding of epoll_pwait2 syscall introduced in Linux 5.11. * Implemented decoding of GPIO_* ioctl commands. * Implemented decoding of FS_IOC_FS[GS]ETXATTR, FS_IOC_[GS]ETFLAGS, and FS_IOC32_[GS]ETFLAGS ioctl commands. * Implemented decoding of SIOCADDMULTI, SIOCDELMULTI, SIOCGIFENCAP, SIOCOUTQNSD, SIOCSIFENCAP, and SIOCSIFHWBROADCAST ioctl commands. * Implemented decoding of UBI_IOCRPEB and UBI_IOCSPEB ioctl commands. * Implemented decoding of V4L2_BUF_TYPE_META_CAPTURE, V4L2_BUF_TYPE_META_OUTPUT, and VIDIOC_QUERY_EXT_CTRL ioctl commands. * Updated lists of BPF_*, BTRFS_*, CLOSE_RANGE_*, ETH_*, IORING_*, KVM_*, PR_*, PTRACE_*, RTA_*, RTAX_*, RTM_*, RTNH_*, SCTP_*, SO_*, SYS_*, UFFD_*, and V4L2_* constants. * Updated lists of ioctl commands from Linux 5.11. * Bug fixes * Fixed decoding of SIOCGIFINDEX, SIOCBRADDIF, and SIOCBRDELIF ioctl commands. * Fixed decoding of FIO[GS]ETOWN, SIOC[GS]PGRP, and SIOCATMARK ioctl commands on alpha, mips, sh, and xtensa architectures. * Fixed fork--pidns-translation test on sparc and sparc64. * Fixed build on hppa with uapi headers from Linux >= 5.10. 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: * Dmitry V. Levin * Elvira Khabirova * Eugene Syromyatnikov * Gleb Fotengauer-Malinovskiy * Kent Gibson * Philippe De Muyter * Sven Schnelle Please refer to the CREDITS file for the full list of strace contributors.
    cdda3034 · Prepare for 5.11 release ·
    Release v5.11
  • v5.10   Noteworthy changes in strace 5.10 (2020-12-14) ============================================== * Improvements * libdw-based stack tracing is now enabled for non-native personalities. * Implemented decoding of process_madvise syscall introduced in Linux 5.10. * Updated decoding of pidfd_open syscall to match Linux 5.10. * Updated decoding of membarrier syscall to match Linux 5.10. * Updated lists of ALG_*, BPF_*, INET_DIAG_*, IORING_*, KEY_*, KVM_*, MDBA_*, MEMBARRIER_CMD_*, MS_*, NLMSGERR_*, NT_*, STATX_*, SEGV_*, and V4L2_* constants. * Updated lists of ioctl commands from Linux 5.10. * Bug fixes * Added clock_gettime64, clock_settime64, clock_adjtime64, and lock_getres_time64 syscalls to %clock trace class. * Portability * Implemented workarounds for -Wall regressions in Red Hat gcc 11.0.0-0. 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: * Dmitry V. Levin * Elvira Khabirova * Eugene Syromyatnikov * Gleb Fotengauer-Malinovskiy * Khem Raj * Renaud Métrich * Sven Schnelle Please refer to the CREDITS file for the full list of strace contributors.
    5097662f · Prepare for 5.10 release ·
    Release v5.10
  • v5.9   Noteworthy changes in strace 5.9 (2020-09-24) ============================================= * Improvements * Added -n/--syscall-number option for printing syscall numbers. * Added --pidns-translation option for PID namespace translation (addresses Fedora bug #1035433). * Implemented decoding of close_range syscall. * Implemented decoding of TEE_* ioctl commands. * Implemented decoding of struct msginfo argument of IPC_INFO and MSG_INFO msgctl syscall commands. * Implemented decoding of struct msqid_ds argument of MSG_STAT and MSG_STAT_ANY msgctl syscall commands. * Implemented decoding of struct seminfo argument of IPC_INFO and SEM_INFO semctl syscall commands. * Implemented decoding of struct semid_ds argument of IPC_SET, IPC_STAT, SEM_STAT, and SEM_STAT_ANY semctl syscall commands. * Implemented decoding of struct shminfo argument of IPC_INFO shmctl syscall command. * Implemented decoding of struct shm_info argument of SHM_INFO shmctl syscall command. * Implemented decoding of struct shmid_ds argument of SHM_STAT and SHM_STAT_ANY shmctl syscall commands. * Updated lists of BPF_*, CAP_*, FAN_*, IFLA_*, INET_DIAG_REQ_*, IORING_FEAT_*, IP_*, IPV6_*, KVM_*, NDA_*, PTP_PEROUT_*, RTPROT_*, and V4L2_FMT_FLAG_* constants. * Updated lists of ioctl commands from Linux 5.9. 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: * Dmitry V. Levin * Elvira Khabirova * Eugene Syromyatnikov * Gleb Fotengauer-Malinovskiy * Ruinland ChuanTzu Tsai * Tom Stellard * Ákos Uzonyi Please refer to the CREDITS file for the full list of strace contributors.
    46e578e9 · Prepare for 5.9 release ·
    Release v5.9
  • v5.8   Noteworthy changes in strace 5.8 (2020-08-06) ============================================= * Changes in behaviour * Modified %process class to contain system calls associated with process lifecycle (creation, exec, termination): kill, tkill, tgkill, pidfd_send_signal and rt_sigqueueinfo are added, arch_prctl and unshare are removed. * Improvements * Implemented decoding of faccessat2 syscall. * Implemented decoding of LOOP_CONFIGURE ioctl command. * Updated decoding of io_uring_setup syscall to match Linux 5.8. * Updated lists of AUDIT_*, BPF_*, CAP_*, ETH_*, INET_DIAG_*, IORING_*, KEYCTL_*, KVM_*, LOOP_*, NDA_*, RTC_*, TCA_*, STATX_*, and *_MAGIC constants. * Updated lists of ioctl commands from Linux 5.8. * Bug fixes * Added statx syscall to %fstat trace class. 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: * Chris Packham * Dmitry V. Levin * Eugene Syromyatnikov * Gleb Fotengauer-Malinovskiy * Janosch Frank * Steve Langasek * Sven Schnelle * Ákos Uzonyi Please refer to the CREDITS file for the full list of strace contributors.
    57e28389 · Prepare for 5.8 release ·
    Release v5.8
  • v5.7   Noteworthy changes in strace 5.7 (2020-06-01) ============================================= * Improvements * Implemented interval specification in "when=" subexpression of syscall tampering expressions. * Added -e trace=%clock option for tracing syscalls reading of modifying system clocks. * Implemented decoding of BPF_LINK_CREATE and BPF_LINK_UPDATE bpf syscall commands. * Updated decoding of clone3 syscall to match Linux 5.7. * Updated lists of BPF_*, BTRFS_*, CLONE_*, FAN_*, IORING_*, KVM_*, LWTUNNEL_*, MREMAP_*, PERF_*, SECCOMP_*, UFFDIO_*, V4L2_*, and XDP_* constants. * Updated lists of ioctl commands from Linux 5.7. * Bug fixes * Fixed decoding of getdents and getdents64 syscalls when they return a lot of directory entries. * Fixed pathtrace matching of openat2 syscall. * Fixed build on systems without fork. 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: * Alistair Francis * Dmitry V. Levin * Eugene Syromyatnikov * Fabrice Fontaine * Gleb Fotengauer-Malinovskiy * Kemeng Shi * Maxim Akhmedov * Mike Gilbert * Niklas Cathor * Paul Chaignon * Pierre Marsais * Ákos Uzonyi Please refer to the CREDITS file for the full list of strace contributors.
    e819a270 · Prepare for 5.7 release ·
    Release v5.7
  • v5.6   Noteworthy changes in strace 5.6 (2020-04-07) ============================================= * Changes in behaviour * Messages about unknown tracees are now subject to the strace's quietness setting (-q/--quiet). * If -A option is provided without -o, or -S option without -c/-C, a warning about its uselessness is printed now. * The usage of --seccomp-bpf without -f has no effect now. * Improvements * Every short option now has a long option alias, which also has enabled the following improvements: * Ability to use human-readable settings for -I/--interruptible, -D/--daemonize options. * Ability to silence specific messages using -e quiet/--quiet qualifier (an alias for the -q option), including those that couldn't be silenced previously (path resolution messages and "superseded by execve"). * Ability to specify selected fd decoding features using -e decode-fds/--decode-fds qualifier (an alias for the -y option). * Ability to set precision for the absolute timestamp, relative timestamp, and syscall time output (using --absolute-timestamps, --relative-timestamps, and --syscall-times options, respectively). * Implemented ability to select the set of displayed columns in the call summary output (-U/--summary-columns option). * Implemented ability to sort on any summary column. * Implemented ability to show information about minimum and maximum call duration in the call summary output (addresses Debian bug #240945). * Implemented printing of PIDs associated with pidfds in -yy mode. * Implemented PTRACE_GETREGS API support on hppa, sh, sh64, and xtensa. * Improved performance of libdw-based stack traces printing by implementing a symbol-to-address cache. * Implemented decoding of openat2 and pidfd_getfd syscalls. * Enhanced io_uring_register, prctl, sched_getattr, and sched_setattr syscall decoding. * Implemented decoding of BPF_MAP_LOOKUP_BATCH, BPF_MAP_LOOKUP_AND_DELETE_BATCH, BPF_MAP_UPDATE_BATCH, and BPF_MAP_DELETE_BATCH bpf syscall commands. * Enhanced decoding of BPF_MAP_CREATE and BPF_PROG_ATTACH bpf syscall commands. * Enhanced decoding of RTC_VL_READ ioctl command. * Enhanced decoding of IFLA_* netlink attributes. * Implemented HIDIOCGRAWUNIQ() ioctl command number printing. * Wired up kexec_file_load syscall on hppa. * Updated lists of AUDIT_*, BPF_*, CLONE_*, GRND_*, IFLA_*, IORING_*, IPPROTO_*, KEY_*, KVM_*, RTM_F_*, SCHED_*, and *_MAGIC constants. * Updated lists of ioctl commands from Linux 5.6. * Bug fixes * Fixed build on csky abiv1 architecture. * Various minor fixes in VIDIOC_* ioctl output formatting. * Fix printing of the size field for _IOC_NONE ioctl command numbers on sparc. * Portability * On hppa, linux kernel >= 4.7 is required. On sh and sh64, linux kernel >= 2.6.28 is required. Older versions without a decent PTRACE_GETREGS support will not work. 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: * Alistair Francis * Dmitry V. Levin * Eugene Syromyatnikov * Gleb Fotengauer-Malinovskiy * Jann Horn * Ma Jun * Masatake YAMATO * Paul Chaignon * Philippe De Muyter Please refer to the CREDITS file for the full list of strace contributors.
    3e32da09 · Prepare for 5.6 release ·
    Release v5.6
  • v5.5   Noteworthy changes in strace 5.5 (2020-02-06) ============================================= * Improvements * Added -e trace=%creds option for tracing syscalls related to process credentials. * Enhanced decoding of arch_prctl, keyctl, io_uring_register, io_uring_setup, and perf_event_open syscalls. * Enhanced decoding of BPF_PROG_LOAD bpf syscall command. * Updated decoding of clone3 syscall to match Linux 5.5. * Implemented decoding of TCA_ACT_FLAGS and TCA_STATS_PKT64 netlink attributes. * Updated lists of AUDIT_*, BPF_*, CLONE_*, KEY_*, KVM_*, PPC_PTRACE_*, SCTP_*, STATX_*, TIPC_*, V4L2_*, and *_MAGIC constants. * Updated lists of ioctl commands from Linux 5.5. * Enhanced manual page and "strace --help" output. * Bug fixes * Fixed stack trace printing for early syscalls when strace is configured to use libdw backend for stack tracing (addresses Fedora bug #1788636). * Fixed stack trace caching when --seccomp-bpf option is specified. * Fixed potentially unaligned access in decoder of SO_TIMESTAMP*_NEW control messages. * Fixed decoding of NDA_LLADDR netlink neighbor table attribute. * Fixed build of mpers support when CFLAGS contains -flto. * Fixed build on no-MMU architectures. * Fixed build with glibc-2.31 and Linux kernel headers < 5.3. * Fixed tests for glibc-2.31. 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: * Andreas Schwab * Andrey Zax * Baruch Siach * Chunmei Xu * Dmitry V. Levin * Eugene Syromyatnikov * Gleb Fotengauer-Malinovskiy * Jamal Hadi Salim * Khem Raj * Paul Chaignon * Pavel Zhukov * Quentin Monnet * Rich Felker * Thomas Deutschmann * Vineet Gupta * Vladimir D. Seleznev Please refer to the CREDITS file for the full list of strace contributors.
    da2fa3bc · Prepare for 5.5 release ·
    Release v5.5
  • v5.4   Noteworthy changes in strace 5.4 (2019-11-28) ============================================= * Improvements * Implemented -DD and -DDD options that move strace into a separate process group and session, respectively. * Enhanced seccomp-bpf tracee syscall filtering support by implementing new "binary match" BPF program generation strategy and automatically choosing the strategy that generates the shortest BPF program. * Implemented decoding of BPF_BTF_GET_NEXT_ID bpf syscall command. * Enhanced decoding of BPF_MAP_LOOKUP_ELEM bpf syscall command. * Implemented PTP_CLOCK_GETCAPS2, PTP_EXTTS_REQUEST2, PTP_PEROUT_REQUEST2, PTP_ENABLE_PPS2, and PTP_SYS_OFFSET2 ioctl decoding. * Updated lists of BPF_*, CAN_*, KEXEC_*, KVM_*, MADV_*, MSG_*, P_*, PR_*, PTP_*, SCTP_*, and V4L2_* constants. * Implemented ability to build ARM EABI mpers support using a separate compiler on aarch64. * Updated lists of ioctl commands from Linux 5.4. * Enhanced manual page. * Bug fixes * Fixed -b execve when --seccomp-bpf option is specified. * Fixed decoding of BPF_PROG_LOAD bpf syscall command. * Fixed build on no-MMU architectures. * Fixed build on antique systems that do not provide necessary definitions of AUDIT_ARCH_* constants. 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: * Andreas Schwab * Baruch Siach * Dmitry V. Levin * Elvira Khabirova * Eugene Syromyatnikov * Fanda Uchytil * Gleb Fotengauer-Malinovskiy * Paul Chaignon Please refer to the CREDITS file for the full list of strace contributors.
    bef61250 · Prepare for 5.4 release ·
    Release v5.4
  • v5.3   Noteworthy changes in strace 5.3 (2019-09-25) ============================================= * Improvements * Implemented usage of seccomp-bpf for stopping tracees only for filtered syscalls. Use --seccomp-bpf option to enable. * Implemented decoding of pidfd_open and clone3 syscalls. * Enhanced decoding of io_cancel, io_submit, s390_sthyi, and syslog syscalls. * Enhanced decoding of NETLINK_ROUTE protocol. * Implemented decoding of UNIX_DIAG_UID netlink attribute. * Implemented decoding of WDIOC_* ioctl commands. * Enchanced syscall count statistics: overhead is now applied per-call, added ability for sorting on errors field. * Syscall delay injection and overhead values can now be supplied with time measure unit suffix and provided in IEEE 754 floating point format. * Updated lists of AUDIT_*, BPF_*, ETH_*, KEYCTL_*, KVM_*, MAP_*, SO_*, TCP_*, V4L2_*, XDP_*, and *_MAGIC constants. * Updated lists of ioctl commands from Linux 5.3. * Enhanced manual page. * Bug fixes * Fixed syscall tampering on arc, avr32, csky, ia64, m68k, metag, mips, nios2, or1k, riscv, s390, s390x, sparc, sparc64, and tile architectures when PTRACE_GET_SYSCALL_INFO is in use. * Fixed decoding of sockaddr_hci (AF_BLUETOOTH) addresses that lack hci_channel field. * Fixed evdev ioctl bitset decoding. * Fixed tests on alpha with Linux kernel headers 5.1+. * Portability * Removed support for decoding syscalls in range [1024...1079] on AArch64 architecture as this range has never been implemented in mainline kernel releases. 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: * Alexey Gladkov * Anatoly Pugachev * Bharath Vedartham * Chen Jingpiao * Dan Horák * Dmitry V. Levin * Eugene Syromyatnikov * Gleb Fotengauer-Malinovskiy * Jeremy Kerr * Paul Chaignon * Pierre Marsais * Rasmus Villemoes Please refer to the CREDITS file for the full list of strace contributors.
    187016a6 · Prepare for 5.3 release ·
    Release v5.3
  • v5.2   Noteworthy changes in strace 5.2 (2019-07-12) ============================================= * Improvements * Implemented syscall return status filtering with -e status=set option and its aliases: -z (limit syscall printing to successful syscalls only) and -Z (limit syscall printing to failed syscalls only). * Implemented decoding of open_tree, move_mount, fsopen, fsconfig, fsmount, and fspick syscalls. * Enhanced decoding of bpf, clone, inotify_init, mbind, and set_mempolicy syscalls. * Updated lists of AT_*, AUDIT_*, BPF_*, CLONE_*, ETH_*, KEY_*, KVM_*, MPOL_*, TIPC_*, and V4L2_* constants. * Updated lists of ioctl commands from Linux 5.2. * Bug fixes * Fixed syscall tampering on powerpc, powerpc64, sparc, and sparc64 when PTRACE_GET_SYSCALL_INFO is in use. * Fixed build with cutting-edge toolchain. 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: * Burkhard Kohl * Dmitry V. Levin * Eugene Syromyatnikov * Gleb Fotengauer-Malinovskiy * Masatake YAMATO * Michal Sekletar * Paul Chaignon * Zhibin Li Please refer to the CREDITS file for the full list of strace contributors.
    dc03195e · Prepare for 5.2 release ·
    Release v5.2
  • v5.1   Noteworthy changes in strace 5.1 (2019-05-22) ============================================= * Bug fixes * Fixed decoding of last two arguments of clone syscall on riscv. * Improvements * Added C-SKY architecture support. * Implemented decoding of SO_TIMESTAMP*_NEW control messages. * Implemented decoding of clock_gettime64, clock_settime64, clock_adjtime64, clock_getres_time64, clock_nanosleep_time64, timer_gettime64, timer_settime64, timerfd_gettime64, timerfd_settime64, utimensat_time64, pselect6_time64, ppoll_time64, io_pgetevents_time64, recvmmsg_time64, mq_timedsend_time64, mq_timedreceive_time64, semtimedop_time64, rt_sigtimedwait_time64, futex_time64, sched_rr_get_interval_time64, pidfd_send_signal, io_uring_setup, io_uring_enter, and io_uring_register syscalls. * Enhanced decoding of bpf syscall. * Wired up getegid, geteuid, getppid, io_pgetevents, statfs64, and fstatfs64 syscalls on alpha. * Wired up kexec_file_load and migrate_pages syscalls on arm. * Wired up io_pgetevents, perf_event_open, seccomp, and statx syscalls on ia64. * Wired up seccomp syscall on m68k. * Wired up statx syscall on sh. * Wired up pkey_mprotect, pkey_alloc, and pkey_free syscalls on alpha, hppa, ia64, m68k, s390, s390x, sh, sparc, and sparc64. * Wired up rseq syscall on alpha, hppa, ia64, m68k, sh, sparc, sparc64, and xtensa. * Wired up direct ipc syscalls on m68k, mips o32, powerpc, powerpc64, s390, s390x, sh, sparc, sparc64, and x86. * Updated lists of BPF_*, FAN_*, F_SEAL_*, IPV6_*, NT_*, PR_SPEC_*, SO_*, and V4L2_* constants. * Updated lists of ioctl commands from Linux 5.1. 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: * Dmitry V. Levin * Eugene Syromyatnikov * Gleb Fotengauer-Malinovskiy * Guo Ren Please refer to the CREDITS file for the full list of strace contributors.
    c42818bc · Prepare for 5.1 release ·
    Release v5.1
  • v5.0   Noteworthy changes in strace 5.0 (2019-03-19) ============================================= * Changes in behavior * -D option now implies -I4: by default strace ignores SIGHUP, SIGINT, SIGQUIT, SIGPIPE, SIGTERM, SIGTTIN, SIGTTOU, and SIGTSTP when -D option is used. * Diagnostic message is no longer printed if an attempt to restart a process has failed with ESRCH. (Addresses RHBZ bug #1662936.) * ASCII dump no longer tries to read the whole buffer at once. As result, it can fail with a diagnostic message after dumping only a part. Amount of preceding zeroes printed for offset is now chosen in a way to accommodate all the digits of all the offsets being printed. * Improvements * Changed the way tracees are handled: all pending tracees are now waited for before further processing, this improves fairness of tracee processing. (Addresses RHBZ bugs #478419, #526740, #851457, #1609318, #1610774, and maybe some others.) * Enhanced xlat styles support configured by -X option. * Enhanced decoding of bpf syscall. * Enhanced decoding of PTRACE_PEEKUSER and PTRACE_POKEUSER on hppa. * Enhanced pid formatting in strace-log-merge output. * Wired up kexec_file_load and rseq syscalls on aarch64, arc, metag, nios2, or1k, riscv, and tile architectures. * Updated lists of BPF_*, BTRFS_*, FAN_*, IFLA_*, KERN_*, KVM_CAP_*, NDA_*, NETNSA_*, NT_*, PR_*, REL_*, SECCOMP_*, SCTP_*, UDP_*, V4L2_*, and *_MAGIC constants. * Updated lists of ioctl commands from Linux 5.0. * Bug fixes * Fixed ordering of sockaddr_in6 fields. * Fixed strace-k test on alpha. * Fixed build on mips o32. * Fixed build on NOMMU architectures. * Fixed build in --with-libiberty=yes mode. * Fixed potential NULL dereference during printing of line continuation for syscalls that haven't been decoded. * Fixed strace-log-merge error diagnostics. 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: * Andreas Schwab * Baruch Siach * DJ Delorie * Denys Vlasenko * Dmitry V. Levin * Eugene Syromyatnikov * Gleb Fotengauer-Malinovskiy * Jeff Law * Martin Lau * Shankara Pailoor * Tuan Hoang Please refer to the CREDITS file for the full list of strace contributors.
    d091f1a9 · Prepare for 5.0 release ·
    Release v5.0
  • v4.26   Noteworthy changes in strace 4.26 (2018-12-26) ============================================== * License * The test suite is now provided under the terms of the GNU General Public License version 2 or later. * All the rest of strace is now provided under the terms of the GNU Lesser General Public License version 2.1 or later. * Changes in behavior * If strace is interrupted by a signal it handles (currently one of HUP, INT, QUIT, PIPE, or TERM), strace terminates itself with this signal. * Improvements * Implemented obtainment of system call information using PTRACE_GET_SYSCALL_INFO ptrace API. * Implemented decoding of PTRACE_GET_SYSCALL_INFO ptrace request. * Implemented decoding of BLKGETZONESZ, BLKGETNRZONES, and RND* ioctl commands. * Enhanced xlat styles support configured by -X option. * Enhanced internet address formatting in structureless contexts. * Enhanced decoding of getsockopt SO_ERROR option. * Enhanced error diagnostics when the first exec fails. * Added %net as a short form of %network in syscall specifications. * Updated lists of ABS_*, BPF_*, FAN_*, IFA_*, IFLA_*, KVM_CAP_*, NETLINK_*, NTF_*, PR_SPEC_*, REL_*, SOL_*, TCA_*, and V4L2_* constants. * Updated lists of ioctl commands from Linux 4.20. * Enhanced manual page. * Bug fixes * Fixed "xlat_idx: Unexpected xlat value 0" warnings. * Fixed sthyi output format on s390. * Documented -X option in strace -h output. 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: * Dmitry V. Levin * Dmitry Vyukov * Eugene Syromyatnikov * Gleb Fotengauer-Malinovskiy * Jamal Hadi Salim * Janosch Frank * Masatake YAMATO * Rasmus Villemoes * Shankara Pailoor Please refer to the CREDITS file for the full list of strace contributors.
    27739ebc · Prepare for 4.26 release ·
    Release v4.26
  • v4.25   Noteworthy changes in strace 4.25 (2018-10-30) ============================================== * Improvements * Implemented decoding of KVM_CHECK_EXTENSION and NBD_* ioctl commands. * Implemented decoding of SOL_XDP socket option names. * Implemented decoding of AF_PACKET protocols in socket syscall. * Implemented decoding of AF_AX25 and AF_X25 addresses, protocols, and options. * Implemented stack trace printing on receiving signals. * Enhanced xlat styles support configured by -X option. * Enhanced decoding of IFLA_*, NETCONFA_*, and SMC_DIAG_* netlink attributes. * Wired up io_pgetevents syscall on arm, sparc, and sparc64. * Updated lists of AF_*, AUDIT_*, BPF_*, IFLA_*, IN_*, IPSTATS_*, IPV4_DEVCONF_*, NT_*, SCTP_*, SO_*, SOCK_*, SOL_*, and V4L2_* constants. * Updated lists of ioctl commands from Linux 4.19. * Bug fixes * Fixed decoding of bit sets in evdev ioctl commands. * Fixed decoding of EVIOCGBIT(0, ...) ioctl commands. * Fixed test suite for the case when mlockall and unimplemented syscalls are explicitly disabled by a seccomp filter. 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: * Dmitry V. Levin * Elvira Khabirova * Eugene Syromyatnikov * Gleb Fotengauer-Malinovskiy * Pierre Marsais * Zhibin Li Please refer to the CREDITS file for the full list of strace contributors.
    c12d2de1 · Prepare for 4.25 release ·
    Release v4.25
  • v4.24   Noteworthy changes in strace 4.24 (2018-08-14) ============================================== * Improvements * Implemented decoding of kvm vcpu exit reason (-e kvm=vcpu option), requires Linux kernel version 4.16.0 or higher. * Implemented decoding of KVM_SET_CPUID2 and KVM_GET_*_CPUID ioctl commands. * Enhanced decoding of corner cases of SO_LINGER, SO_PEERCRED, and PACKET_STATISTICS getsockopt options. * Wired up io_pgetevents and rseq syscalls on hppa, microblaze, mips, powerpc, and s390. * Updated lists of AUDIT_*, BPF_*, IFA_*, IFLA_*, RTA_*, RTPROT_*, TCP_*, TRAP_*, and UDP_* constants. * Updated lists of ioctl commands from Linux 4.18. * Bug fixes * Fixed decoding of Q_XGETQSTAT on non-native personalities. * Fixed race condition in aio test. * Fixed build with Bionic libc. * Fixed build with glibc-2.28. * Fixed build in exotic systemd-nspawn based environments. * Fixed build on s390 with kernel headers that do not contain Linux commit v3.10-rc1~201^2~11. 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: * Chen Jingpiao * Dmitry V. Levin * Elliott Hughes * Eugene Syromyatnikov * Gleb Fotengauer-Malinovskiy * Masatake YAMATO * Pierre Marsais * Zhibin Li
    150655ca · Prepare for 4.24 release ·
    Release v4.24
  • v4.23   NEWS for strace version 4.23 ============================ * Changes in behaviour * On x32 personality, 64-bit syscalls (such as readv) are now shown with "#64" suffix instead of "64:" prefix. Unlike the old names, these new names can be used in syscall qualification expressions. * 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. One can specify -X raw for displaying raw error numbers unconditionally. * 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. Whether -k option is compiled is now configured at build time using --enable-stacktrace 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 ioctl commands. * Enhanced decoding of AF_BLUETOOTH socket addresses. * Implemented decoding of io_pgetevent syscall. * Wired up rseq syscall. * Updated lists of ADJ_*, BPF_*, BPF_F_*, BPF_PROG_TYPE_*, ETH_P_*, FPE_*, IFF_*, IPPROTO_*, MAP_*, MS_*, MSG_*, NETLINK_*, PACKET_*, PROT_*, SCTP_*, SECCOMP_FILTER_FLAG_*, SEGV_*, SEM_*, SHM_*, SW_*, V4L2_CID_*, V4L2_CTRL_CLASS_*, and V4L2_PIX_FMT_* constants. * Updated lists of ioctl commands from Linux 4.17. * Bug fixes * Fixed decoding of msgtyp argument of msgrcv syscall. * Fixed fallback definitions for F_*, MCL_*, MSG_ZEROCOPY, SI_*, and SOL_SOCKET constants. * Fixed -e trace=%pure expression on mips. 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: * Andre McCurdy * Chris Lamb * Dmitry V. Levin * Eugene Syromyatnikov * Gleb Fotengauer-Malinovskiy * Harsha Sharma * Mark Wielaard * Masatake YAMATO * Zhibin Li
    9a7661cc · Prepare for 4.23 release ·
    Release v4.23
  • v4.22   NEWS for strace version 4.22 ============================ * Changes in infrastructure * The mailing list was moved to strace-devel@lists.strace.io. * SourceForge git repository (https://sourceforge.net/p/strace/code/ci/master/tree/) is no longer maintained. Please use GitLab (https://gitlab.com/strace/strace/) or GitHub (https://github.com/strace/strace/) repository instead. * 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. * Optimized handling of large number of tracees. * Improved wall clock time measurement in syscall count statistics (-c -w option). * Extended the range of allowed values in -e inject=...:retval= expression. * Added i18n support. * Updated lists of ioctl commands from Linux 4.16. * Enhanced manual page. * Bug fixes * Fixed build on m68k. * Fixed v4l2 pixelformat decoding on big-endian architectures. * Fixed -O option. 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: Chen Jingpiao Dmitry V. Levin Elvira Khabirova Eugene Syromyatnikov Gleb Fotengauer-Malinovskiy Harsha Sharma J. Bruce Fields Josh Triplett Masatake YAMATO Philipp Marek
    9630646c · Prepare for 4.22 release ·
    Release v4.22
  • v4.21   NEWS for strace version 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. * Updated lists of ioctl commands from Linux 4.15. * Implemented biarch support for s390x. * Implemented an optional support for symbol demangling in strace -k output (activated by --with-libiberty configure option). * Information about availability of demangling and reliable personality decoding (on architectures with multiple personalities) is now available in strace -V output. * Added decoding of pkey_alloc, pkey_free, and pkey_mprotect syscalls on powerpc and powerpc64. * Enhanced manual page. * Bug fixes * Fixed multi-personality support in cross builds. * Added mq_getsetattr, mq_notify, mq_open, mq_timedreceive, and mq_timedsend syscalls to %desc tracing set. * Fixed path tracing support for mmap syscalls with indirect arguments and for old select syscall. * Fixed decoding of arm-specific (__ARM_NR_*) syscalls. * Fixed open mode flags decoding. * Fixed corner cases in handling of strace -ff -ttt logs by strace-log-merge. * Error counts that exceed one billion are now printed correctly in call summary output. * Fixed call summary header for x32 personality. * Changes of tracee personalities are reported more reliably. * Fixed the case when strace attaches to a tracee being inside exec and its first syscall stop is syscall-exit-stop instead of syscall-enter-stop, which messed up all the syscall state tracking. * Fixed printing of higher 32 bits of the return value for x32 personality. * Portability * A C compiler that supports "for" loop initial declarations is now required. * Inability to configure multiple personality support on architectures where multiple personalities are supported leads to configuration failure during build now. Use --enable-mpers=check to revert to the old behaviour. * Build-time requirement for the mpers support has been lowered from gawk 4 to gawk 3. * Removed incomplete and non-functional support for the CRIS architecture. * Removed incomplete and unused support for IA-32 mode on the IA-64 architecture. 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: Chen Jingpiao DJ Delorie Dmitry V. Levin Elvira Khabirova Eugene Syromyatnikov Gleb Fotengauer-Malinovskiy Harsha Sharma Lubomir Rintel Masatake YAMATO Nikolay Marchuk Rolf Eike Beer Victor Krapivensky Vitaly Chaykovsky
    51630c20 · Prepare for 4.21 release ·
    Release v4.21
  • v4.20   NEWS for strace version 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. 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: Baruch Siach Dmitry V. Levin Eugene Syromyatnikov Gleb Fotengauer-Malinovskiy JingPiao Chen Steve McIntyre
    c9920257 · Prepare for 4.20 release ·
    Release v4.20
  • v4.19   NEWS for strace version 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. * Implemented basic protocol specific decoding of NETLINK_CRYPTO. * Implemented decoding of crypto_user_alg netlink attributes of NETLINK_CRYPTO. * Implemented basic protocol specific decoding of addr, addrlabel, dcb, link, mdb, neigh, neightbl, netconf, nsid, route, rule, tc, and tca messages of NETLINK_ROUTE. * Implemented decoding of NETLINK_KOBJECT_UEVENT messages. * Improved handling of unexpected tracees (the ones that cloned with CLONE_PARENT/CLONE_PTRACE or called PTRACE_TRACEME on themselves): they are now PTRACE_DETACH'ed instead of PTRACE_CONT'ed. * Updated lists of BPF_*, KEY_*, RWF_*, SCM_*, SO_*, and *_MAGIC constants. * Added decoding of arch_prctl syscall on x86. * Added decoding of seccomp, bpf, userfaultfd, membarrier, mlock2, copy_file_range, preadv2, pwritev2, and statx on alpha. * Added decoding of statx syscall on microblaze. * Added decoding of s390_guarded_storage syscall on s390. * Updated lists of ioctl commands from Linux 4.13. * Enhanced manual page. * Bug fixes * Fixed printing of group_req structure on non-native personalities. * Fixed output formatting of blkpg_ioctl_arg, dm_name_list, and iocb structures. * Fixed formatting of nul-terminated strings which have kernel-imposed size limit. * Fixed printing of paths that hit PATM_MAX limit in order to match kernel's behaviour. * Fixed build warnings on Android mips64. * Fixed unused function "is_negated_errno" build warning when built with clang. * Fixed syscall number and arguments retrieval behaviour on sparc64 and mips o32 after prctl(PR_SET_DUMPABLE, 0) makes PTRACE_PEEKTEXT impossible to use if Linux kernel has commit v4.10-rc1~114^2~2. * Fixed path tracing for execveat, symlink, symlinkat, inotify_add_watch, and inotify_init syscalls. * Fixed personality switch printing on sparc64 and risc-v. 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: Anatoly Pugachev Dmitry V. Levin Edgar Kaziakhmedov Eugene Syromyatnikov Fabien Siron Gleb Fotengauer-Malinovskiy JingPiao Chen Lazar Trsic Nikolay Marchuk Victor Krapivensky
    af9010e6 · Prepare for 4.19 release ·