| Noteworthy changes in release 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. |
| |
| Noteworthy changes in release 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. |
| |
| Noteworthy changes in release 4.23 (2018-06-14) |
| =============================================== |
| |
| * 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. |
| |
| Noteworthy changes in release 4.22 (2018-04-05) |
| =============================================== |
| |
| * 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. |
| |
| Noteworthy changes in release 4.21 (2018-02-13) |
| =============================================== |
| |
| * 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. |
| |
| Noteworthy changes in release 4.20 (2017-11-13) |
| =============================================== |
| |
| * 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. |
| |
| Noteworthy changes in release 4.19 (2017-09-05) |
| =============================================== |
| |
| * 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. |
| |
| Noteworthy changes in release 4.18 (2017-07-05) |
| =============================================== |
| |
| * 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. |
| |
| Noteworthy changes in release 4.17 (2017-05-24) |
| =============================================== |
| |
| * 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 |
| architectures. |
| * Implemented decoding of statx syscall. |
| * Implemented decoding of NS_* ioctl commands. |
| * Implemented decoding of the remaining V4L2_BUF_TYPE_* types. |
| * Implemented decoding of VIDIOC_[SG]_TUNER ioctl commands. |
| * Implemented decoding of NLMSG_ERROR netlink messages. |
| * Improved decoding of BPF_PROG_ATTACH command of bpf syscall. |
| * Improved decoding of misplaced parts in DM_* ioctl commands. |
| * Updated lists of ioctl commands from Linux 4.11. |
| |
| * Bug fixes |
| * Fixed decoding of flags argument of preadv2 and pwritev2 syscalls on x32. |
| * Fixed the number of arguments and tracing flags of alpha specific syscalls. |
| * Fixed decoding of old sigsuspend syscall on alpha, cris, mips, powerpc, |
| powerpc64, sh, sh64, sparc, and sparc64. |
| * Fixed decoding of sgetmask and ssetmask syscalls on 64-bit architectures. |
| * Fixed decoding of netlink messages received within struct msghdr. |
| * Worked around a bug in miscompiled aarch64 kernels leading to the 3rd |
| argument of sched_getattr syscall being not quite 32-bit. |
| * Fixed corner cases of printing inaccessible times argument of utimes |
| and futimesat syscalls. |
| |
| Noteworthy changes in release 4.16 (2017-02-14) |
| =============================================== |
| |
| * 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. |
| |
| Noteworthy changes in release 4.15 (2016-12-14) |
| =============================================== |
| |
| * Changes in behavior |
| * Time stamps are now printed according to ISO 8601. |
| * Changed output format of val3 parameter of futex FUTEX_WAKE_OP operation. |
| * The last argument of mincore, sched_getaffinity, and sched_setaffinity |
| syscalls is now formatted as an array. |
| |
| * Improvements |
| * Implemented syscall fault injection (-e fault=... option). |
| * Implemented decoding of DM_* ioctl commands. |
| * Implemented decoding of attr parameter of perf_event_open syscall. |
| * Implemented decoding of pkey_alloc, pkey_free, and pkey_mprotect syscalls. |
| * Implemented dumping of mq_timedsend and mq_timedreceive syscalls. |
| * Implemented decoding of PR_SET_FP_MODE and PR_GET_FP_MODE operations |
| of prctl syscall. |
| * Implemented PTRACE_GETREGS API support on m68k. |
| * Updated lists of ARCH_*, BPF_*, BTRFS_*, FALLOC_*, MS_*, *_MAGIC, |
| and V4L2_* constants. |
| * Updated lists of ioctl commands from Linux 4.9. |
| * Added decoding of recently added syscalls on arc, x32, and xtensa. |
| * Enhanced manual page. |
| |
| * Bug fixes |
| * Fixed corner cases in decoding of exit, exit_group, futimesat, getgroups, |
| getresuid, init_module, inotify_init1, kcmp, kexec_load, lookup_dcookie, |
| mq_getsetattr, mq_notify, mq_open, mq_timedreceive, mq_timedsend, |
| name_to_handle_at, prctl, process_vm_readv, process_vm_writev, setfsuid, |
| setgroups, setns, unshare, and utimes syscalls. |
| * Fixed handling of verbose flag in printing of controls array |
| of struct v4l2_ext_controls. |
| * Fixed omission of field names in the output of capability, sigaction, |
| sigevent, statfs, timespec, timeval, and utimbuf structures. |
| * Fixed printing of unknown syscalls in siginfo structure. |
| * Fixed decoding of ioctl constants on m68k. |
| * Fixed cris architecture support. |
| * Fixed cross build when host compiler does not support the same |
| set of warning flags as the cross compiler. |
| * Fixed build on SLE10 and SLE11. |
| |
| Noteworthy changes in release 4.14 (2016-10-04) |
| =============================================== |
| |
| * Changes in behavior |
| * When using -p option without a command and no processes has been attached, |
| strace exits with exit status 1. |
| |
| * Improvements |
| * Added printing of the mode argument of open and openat syscalls |
| when O_TMPFILE flag is set. (Addresses Fedora bug #1377846). |
| * Enhanced -e abbrev=set, -e raw=set, and -e verbose=set. |
| * Enhanced decoding of futex, keyctl, quotactl, timerfd_settime, |
| and aio family syscalls. |
| * Implemented fetching of the 7th subcall argument on mips o32. |
| * Updated lists of BPF_*, ETH_P_*, KEXEC_ARCH_*, SCTP_*, TCP_*, and *_MAGIC |
| constants. |
| * Updated lists of ioctl commands from Linux 4.8. |
| * Added decoding of new syscalls on sh and sh64. |
| * Added RISC-V architecture support. |
| |
| * Bug fixes |
| * Marked io_setup and io_destroy as memory mapping related syscalls. |
| * Fixed leakage of placeholder descriptors to tracees. |
| * Fixed printing of mode_t, umode_t, and umask types. |
| * Fixed decoding of iovec arrays without a limit on total data size. |
| * Fixed decoding of fadvise64, fallocate, futex, keyctl, quotactl, readahead, |
| and ipc family syscalls. |
| * Fixed decoding of invalid syscalls mapped to indirect subcalls. |
| * Fixed decoding of struct btrfs_ioctl_vol_args_v2 on non-native |
| personalities. |
| * Fixed decoding of PTRACE_DETACH on sparc and sparc64. |
| * Fixed decoding of struct stat64 on sparc64. |
| * Fixed decoding of uid and gid-related syscalls on sparc64. |
| * Fixed decoding of the forth argument of semctl syscall on sparc64. |
| * Fixed values of tty ioctl constants on sparc64. |
| * Fixed sparc personality support on sparc64. |
| |
| Noteworthy changes in release 4.13 (2016-07-26) |
| =============================================== |
| |
| * Improvements |
| * Implemented a general netlink socket parser. |
| * Enhanced decoding of socket addresses. |
| * Enhanced decoding of cmsghdr, msghdr, and mmsghdr structures. |
| * Enhanced decoding of accept, accept4, bind, getpeername, getsockname, |
| ipc, recvfrom, recvmsg, recvmmsg, sendto, sendmmsg, and socketcall syscalls. |
| * Updated lists of AF_*, BPF_MAP_TYPE_*, KEY_*, KEYCTL_*, RWF_*, SS_*, |
| and *_MAGIC constants. |
| * Updated lists of ioctl commands from Linux 4.7. |
| |
| * Bug fixes |
| * Fixed decoding of pid_t argument of prlimit64 syscall. |
| * Fixed sign extension issues in the parser of struct rusage. |
| * Fixed race condition in decoding of timeout argument of recvmmsg and |
| rt_sigtimedwait syscalls. |
| * Fixed build with fresh linux kernel headers. |
| |
| Noteworthy changes in release 4.12 (2016-05-31) |
| =============================================== |
| |
| * Improvements |
| * Implemented simultaneous use of -p option and tracing of a command. |
| (addresses Debian bug #549942). |
| * Implemented caching of netlink conversations to reduce amount of time |
| spent in decoding socket details in -yy mode. |
| * Implemented -yy mode decoding of protocol:portid pairs associated with |
| netlink socket descriptors. |
| * Implemented decoding of copy_file_range, preadv2, and pwritev2 syscalls. |
| * Implemented dumping of preadv, preadv2, pwritev, pwritev2, and vmsplice |
| syscalls. |
| * Implemented decoding of BTRFS_* and UFFDIO_* ioctl commands. |
| * Enhanced decoding of BLK*, EVIOC*, RTC_*, and VIDIOC_* ioctl commands. |
| * Enhanced decoding of fstatfs, fstatfs64, get_mempolicy, getdents, |
| getdents64, getgroups, getpriority, kill, mbind, migrate_pages, mknod, |
| mknodat, personality, poll, ppoll, quotactl, rt_sigpending, |
| rt_sigqueueinfo, rt_sigtimedwait, rt_tgsigqueueinfo, sched_getaffinity, |
| sched_setaffinity, seccomp, set_mempolicy, setgroups, setpriority, statfs, |
| statfs64, tgkill, waitid, and xattr family syscalls. |
| * Enhanced decoding of getxpid, getxuid, and getxgid syscalls on alpha. |
| * Enhanced decoding of pipe syscall on alpha, ia64, mips, sh, and sparc. |
| * Added decoding of bind, listen, and setsockopt direct syscalls on sparc. |
| * Added decoding of osf_statfs64 and osf_fstatfs64 syscalls on alpha. |
| * Added decoding of fadvise64 and fadvise64_64 on s390. |
| * Updated lists of AF_*, BPF_MAP_TYPE_*, CLONE_*, EPOLL*, IPV6_*, MADV_*, |
| MSG_*, PTRACE_*, SEGV_*, SO_*, SOL_*, *_MAGIC, and quotactl constants. |
| * Updated lists of ioctl commands from Linux 4.6. |
| |
| * Bug fixes |
| * Fixed build on arc, metag, nios2, or1k, and tile architectures. |
| * Fixed decoding of 32-bit times syscall return value on 64-bit architectures. |
| * Fixed decoding of mlock2 syscall on sparc. |
| * Fixed decoding of osf_shmat syscall on alpha. |
| * Fixed decoding of syscalls unknown to the kernel on s390/s390x. |
| (addresses Debian bug #485979 and Fedora bug #1298294). |
| * Fixed decoding of preadv syscall in case of short read. |
| * Fixed decoding and dumping of readv syscall in case of short read. |
| * Fixed dumping of recvmsg and recvmmsg syscalls in case of short read. |
| * Fixed decoding of mincore syscall's last argument. |
| * Fixed remaining errors in mapping between syscall numbers and numbers |
| of syscall arguments. |
| * Applied various fixes to strace-graph script. |
| |
| Noteworthy changes in release 4.11 (2015-12-21) |
| =============================================== |
| |
| * Changes in behavior |
| * Some syscalls have different names depending on architecture and |
| personality. In these cases, syscall filtering and printing now |
| consistently uses the names that match corresponding __NR_* kernel |
| macros of the tracee's architecture and personality. |
| * Added strace prefix to all diagnostic messages. |
| |
| * Improvements |
| * Enhanced and extended test suite. |
| * Implemented reliable tracing of processes whose personality differs |
| from the personality of strace, fixed decoding of 32-bit personality |
| syscalls on 64-bit architectures. |
| * When some data referenced by syscall arguments is irrelevant or cannot |
| be read from tracee's memory, strace now prints its address consistently. |
| * When a syscall is restarted using restart_syscall mechanism, strace now |
| shows the syscall name on architectures that expose this information. |
| * Print values returned by epoll_create1, eventfd, eventfd2, fanotify_init, |
| inotify_init1, perf_event_open, pipe, pipe2, signalfd, signalfd4, socket, |
| socketpair, timerfd, and timerfd_create syscalls, as well as F_DUPFD and |
| F_DUPFD_CLOEXEC fcntl commands, as file descriptors. |
| * Optimized decoding of indirect socket syscalls. |
| * Implemented decoding of nanoseconds along with seconds in stat family |
| syscalls (addresses Fedora bug #1251176). |
| * Implemented decoding of struct statfs.f_flags in statfs syscall. |
| * Implemented decoding of siginfo_t.si_syscall and siginfo_t.si_arch |
| in SIGSYS signal. |
| * Implemented decoding of indirect syscall on mips o32. |
| * Implemented decoding of IPPROTO_IP control messages. |
| * Implemented decoding of setsockopt syscall multicast arguments. |
| * Enhanced decoding of struct sigevent. |
| * Enhanced decoding of block, loop, mtd, ptp, rtc, SG_IO, socket, tty, |
| and v4l2 ioctl syscall arguments. |
| * Enhanced decoding of epoll_create, fcntl, fcntl64, futex, getdents, |
| getdents64, getsockopt, io_*, mount, msgctl, prctl, quotactl, recvfrom, |
| sendfile, setsockopt, and shmctl syscalls. |
| * Implemented decoding of bpf, execveat, ioperm, iopl, kcmp, kexec_file_load, |
| lookup_dcookie, membarrier, memfd_create, mlock2, name_to_handle_at, |
| open_by_handle_at, sched_getattr, sched_setattr, and userfaultfd syscalls. |
| * Updated lists of AF_*, EPOLL_*, FALLOC_FL_*, F_*, INPUT_PROP_*, IPPROTO_*, |
| IPV6_*, IP_*, KEY_*, LOCK_*, MNT_*, MS_*, PACKET_*, PERF_FLAG_*, PF_*, |
| PR_*, PTRACE_O_*, RENAME_*, SCTP_*, SECBIT_*, SO_*, TCP_*, and siginfo_t |
| constants. |
| * Added Nios II architecture support. |
| * Added new syscall entries to match Linux 4.4. |
| |
| * Bug fixes |
| * Fixed potential short read of strings from tracee's memory. |
| * Fixed -qq option in conjunction with -o option. |
| * Fixed filtering of <unavailable> syscalls. |
| * Fixed decoding of ioctl syscall command on aarch64 and 32-bit architectures |
| with 64-bit aligned structures. |
| * Fixed decoding of eventfd2, epoll_create1, signalfd4, and sync_file_range2 |
| syscall flags arguments. |
| * Fixed decoding of 4th argument of clock_nanosleep syscall. |
| * Fixed decoding of getpagesize syscall on m68k. |
| * Fixed decoding of getrandom and seccomp syscalls on aarch64. |
| * Fixed decoding of timezone argument of gettimeofday and settimeofday |
| * syscalls. |
| * Fixed decoding of offset argument of mmap2 syscall on arm, sparc, |
| and sparc64. |
| * Fixed decoding of pipe syscall on alpha and mips. |
| * Fixed decoding of pipe2 syscall on ia64, sh, sparc, and sparc64. |
| * Fixed decoding of signal mask argument of pselect6 syscall on x32. |
| * Fixed decoding of signal mask of rt_sigreturn syscall on aarch64, m68k, |
| and x32. |
| * Fixed decoding of 4th argument of semctl indirect syscall. |
| * Fixed decoding of sa_restorer and sa_mask of sigaction syscall on m68k. |
| * Fixed decoding of statfs64 and fstatfs64 syscalls on arm eabi. |
| * Fixed decoding of struct dirent on x32. |
| * Fixed decoding of times syscall return value on mips n32 and x32. |
| * Fixed decoding of path argument of umount2 syscall |
| (addresses Debian bug #785050). |
| * Worked around a kernel bug in tracing privileged executables. |
| * Fixed various errors in mapping between syscall numbers and associated |
| information like the number of syscall arguments, the name of syscall, |
| and syscall decoder. |
| |
| Noteworthy changes in release 4.10 (2015-03-06) |
| =============================================== |
| |
| * Improvements |
| * Added -yy option to print protocol and address information associated with |
| socket descriptors. |
| * Extended "-e read=set" and "-e write=set" options to cover sendmsg, |
| recvmsg, sendmmsg, and recvmmsg syscalls. |
| * Implemented full 32-bit decoding of ioctl commands |
| (addresses Debian bug #692913 and Fedora bug #902788). |
| * Implemented PTRACE_GETREGS API support on ia64. |
| * Implemented PTRACE_GETREGS API support on mips. |
| * Implemented PTRACE_GETREGSET API support on s390/s390x. |
| * Implemented decoding of getrandom and seccomp syscalls. |
| * Implemented full decoding of 64-bit capability sets. |
| * Implemented decoding of all prctl commands. |
| * Implemented decoding of parametrized ioctl commands. |
| * Implemented decoding of evdev ioctl commands. |
| * Implemented decoding of v4l ioctl commands. |
| * Implemented decoding of SG_IO v4 ioctl commands. |
| * Implemented decoding of FIFREEZE/FITHAW/FITRIM ioctl commands. |
| * Implemented decoding of FALLOC_FL_* fallocate flags. |
| * Implemented decoding of rt_sigreturn signal mask on aarch64, |
| x32, and x86_64. |
| * Enhanced socket decoder to support bluetooth sockets. |
| * Enhanced decoding of unlisted ioctl commands. |
| * Enhanced decoding of getsockopt and setsockopt syscall. |
| * Enhanced decoding of sysinfo syscall. |
| * Enhanced decoding of struct cmsghdr. |
| * Enhanced decoding of wait status. |
| * Enhanced aio support on non-x86 architectures by using external libaio.h. |
| * Added O_TMPFILE to the list of recognized open mode flags. |
| * Updated the list of filesystem type constants that is used in decoding |
| statfs family syscalls. |
| * Updated lists of CAP_*, PR_*, PTRACE_*, SCHED_*, SO_*, SOL_*, SWAP_FLAG_*, |
| and TFD_* constants. |
| * Updated lists of signal constants from Linux 3.19. |
| * Updated lists of errno constants from Linux 3.19. |
| * Updated lists of ioctl commands from Linux 3.9. |
| * Added new syscall entries to match Linux 3.19. |
| |
| * Bug fixes |
| * Fixed various errors in mapping between syscall numbers and associated |
| information like the number of syscall arguments, the name of syscall, |
| and syscall decoder. |
| * Fixed quoting issues in printing descriptors, filenames, network interface |
| names, struct utsname members, device/volume names of BLK* ioctl commands. |
| * Fixed uid_t/git_t decoding. |
| * Fixed potential out-of-bounds read issues in getdents/getdents64 decoders. |
| * Fixed potential open flags truncation on some architectures. |
| * Fixed decoding of struct ifreq.ifr_name. |
| * Fixed decoding of SIOCSIFNAME ioctl command. |
| * Fixed decoding of RENAME_* renameat2 flags. |
| * Fixed decoding of UTIME_NOW/UTIME_OMIT timeval structures. |
| * Fixed decoding of indirect ipc subcalls on some architectures. |
| * Fixed decoding of fanotify_mark syscall on 32-bit architectures. |
| * Fixed decoding of 32-bit stat structures on 64-bit architectures. |
| * Fixed decoding of 32-bit struct cmsghdr on 64-bit architectures. |
| * Fixed decoding of 32-bit preadv/pwritev offset on 64-bit architectures. |
| * Fixed decoding of sigreturn/rt_sigreturn signal mask on ia64, ppc, ppc64, |
| sparc, sparc64, mips, and s390. |
| * Fixed instruction pointer output (-i option) on architectures that support |
| several personalities. |
| * Fixed behaviour of "-e read=set" and "-e write=set" when read and write |
| sets intersect. |
| * Fixed build on systems where struct sigaction has no sa_restorer member. |
| * Fixed build with uclibc and musl libc. |
| |
| * Portability |
| * Linux kernel >= 2.5.46 is required. |
| Older versions without a decent PTRACE_SETOPTIONS support will not work. |
| * On mips, linux kernel >= 2.6.15 is required. |
| Older versions without a decent PTRACE_GETREGS support will not work. |
| * On s390 and s390x, linux kernel >= 2.6.27 is required. |
| Older versions without a decent PTRACE_GETREGSET support will not work. |
| |
| Noteworthy changes in release 4.9 (2014-08-15) |
| ============================================== |
| |
| * Changes in behavior |
| * Disabled OABI support on ARM EABI systems by default, |
| added --enable-arm-oabi option to enable it at configure time. |
| |
| * Improvements |
| * Added experimental -k option to print stack trace after each traced syscall. |
| * Added -w option to produce stats on syscall latency. |
| (addresses Debian bug #457497). |
| * Added ARC architecture support. |
| * Added PTRACE_GETREGS API support on PowerPC. |
| * Enhanced Bionic libc and musl libc support. |
| * Enhanced tracing of x86 personality processes on x86_64 and x32. |
| * Enhanced tracing of ARM personality processes on AArch64. |
| * Enhanced 32/64bit personality detection on PowerPC. |
| * Implemented decoding of add_key, ioprio_get, ioprio_set, kexec_load, keyctl, |
| renameat2, and request_key syscalls. |
| * Robustified decoding of select, pselect, and io_submit syscalls. |
| * Enhanced decoding of delete_module, fanotify_init, fanotify_mark, fcntl, |
| setdomainname, sethostname, setns, and sync_file_range syscalls. |
| * Enhanced decoding of signal bitmasks. |
| * Enhanced decoding of file descriptors. |
| * Enhanced siginfo_t decoding. |
| * Enhanced PF_NETLINK decoding. |
| * Updated CLOCK_* constants |
| (addresses Fedora bug #1088455). |
| * Added new syscall entries to match Linux 3.16. |
| |
| * Bug fixes |
| * Added shmat and shmdt to the set of memory mapping related syscalls. |
| * Fixed detaching from stopped processes. |
| * Fixed fanotify_mark decoding on 32bit architectures. |
| * Fixed offset decoding in preadv and pwritev syscalls. |
| * Fixed select decoding for glibc in _FORTIFY_SOURCE mode. |
| * Fixed decoding of epoll_ctl syscall with EPOLL_CTL_DEL argument. |
| * Fixed build when <sys/ptrace.h> and <linux/ptrace.h> conflict |
| (addresses Fedora bug #993384). |
| * Miscellaneous corrections in the manual page. |
| (Addresses Debian bug #725987). |
| |
| Noteworthy changes in release 4.8 (2013-06-03) |
| ============================================== |
| |
| * Changes in behavior |
| * In case of normal strace termination, when the trace output is |
| redirected to a pipe, strace now closes it and waits for the pipe |
| process termination before exit. |
| |
| * Improvements |
| * Implemented tracing using PTRACE_SEIZE API (when available). |
| * Implemented more reliable PTRACE_GETREGSET-based process personality |
| detection on x86-64 and x32 (when available). |
| * Added -e trace=memory option for tracing memory mapping related syscalls. |
| * Documented -b option. |
| * Allowed exit status messages to be suppressed by giving -q option twice. |
| * Added AArch64 architecture support |
| (addresses Debian bug #693074 and Fedora bug #969858). |
| * Added support for OpenRISC 1000, Meta, and Xtensa architectures. |
| * Added tilegx personality support for Tile. |
| * Enhanced support of NOMMU architectures. |
| * Enhanced decoding of getdents, mmap, perf_event_open, ptrace, and |
| quotactl syscalls. |
| * Added new syscall entries to match Linux 3.9. |
| * Regenerated the list of common ioctl names from Linux 3.9. |
| * Updated the list of errno constants. |
| * Updated lists of AF_*, MADV_*, MAP_*, MSG_*, MS_*, PF_*, PR_*, |
| PTRACE_O_*, and TCP_* constants. |
| * Implemented decoding of UBI ioctls. |
| * Removed redundant "*32" ioctl names. |
| |
| * Bug fixes |
| * Fixed ERESTARTNOINTR leaking to userspace on ancient kernels |
| (addresses Fedora bug #659382). |
| * Fixed kernel release string parsing |
| (addresses Debian bug #702309). |
| * Fixed decoding of *xattr syscalls |
| (addresses Fedora bug #885233). |
| * Fixed handling of files with 64-bit inode numbers by 32-bit strace |
| (addresses Fedora bug #912790). |
| * Fixed tracing forks on SPARC. |
| * Fixed decoding of fadvise64, fallocate, ftruncate64, io_submit, pread, |
| preadv, pwrite, pwritev, readahead, sigaltstack, sync_file_range, sysctl, |
| and truncate64 syscalls. |
| * Fixed categories of multiple syscalls on most of supported architectures. |
| * Fixed decoding of non-native 32-bit personality recv[m]msg syscalls. |
| * Fixed decoding of multiple 32-bit personality syscalls on x32. |
| * Fixed decoding of long long syscall arguments on ARM, MIPS/o32, PowerPC, |
| S390x, and Tile architectures. |
| * Fixed semtimedop decoding on S390x. |
| * Fixed sram_alloc decoding on Blackfin. |
| * Fixed build when process_vm_readv is a stab. |
| * Fixed build with older versions of libaio.h. |
| |
| Noteworthy changes in release 4.7 (2012-05-02) |
| ============================================== |
| |
| * Changes in behavior |
| * strace no longer suspends waitpid until there is a child |
| for waitpid'ing process to collect status from. |
| * strace no longer detaches from a tracee which is supposed |
| to be going to die. |
| * strace now issues a new message: "+++ exited with EXITCODE +++" |
| which shows exact moment strace got exit notification, |
| analogous to existing "+++ killed by SIG +++" message. |
| |
| * Improvements |
| * Added x32 personality support (x86_64 architecture). |
| * Added -y and -P options to print file descriptor paths and |
| filter by those paths. |
| * Added -I option to control strace interactivity. |
| * Allowed -p option to take comma or whitespace-separated list of PIDs. |
| * Added strace_log_merge script helper to merge timestamped "strace -ff" |
| log files. |
| * Implemented decoding of clock_adjtime, get_robust_list, migrate_pages, |
| preadv, prlimit64, process_vm_readv, process_vm_writev, pwritev, |
| recvmmsg, recvmsg, rt_tgsigqueueinfo, sendmmsg, setns, set_robust_list, |
| sched_rr_get_interval, splice, syslog, tee and vmsplice syscalls. |
| * Enhanced decoding of capget, capset, getrlimit, flistxattr, io_submit, |
| listxattr, setrlimit and swapon syscalls. |
| * Implemented decoding of loop and mtd ioctls. |
| * Added syscall entries for new linux syscalls. |
| * Added syscall entries for direct socket system calls on powerpc. |
| * Updated the list of errno constants. |
| * Updated lists of MSG_*, STA_*, and TCP_* constants. |
| * Regenerated the list of ioctl names from Linux 3.3. |
| * Enhanced switching between processes with different personalities. |
| * Enhanced signals reporting by using short signal names. |
| * Made ERESTART* messages more descriptive. |
| * Made parsing of numbers from strings more robust. |
| * Added support for compat_statfs64 and statfs64.f_flags. |
| * Changed read of data blocks to use single process_vm_readv syscall |
| (when available) instead of several PTRACE_PEEKDATA operations. |
| * Changed read of registers on x86 and x86-64 to use single PTRACE_GETREGS |
| operation instead of several PTRACE_PEEKUSER operations. |
| * Applied various optimizations to make strace work faster. |
| |
| * Bug fixes |
| * Implemented proper handling of real SIGTRAPs on kernels supporting |
| PTRACE_O_TRACESYSGOOD. |
| (Addresses Fedora bug #162774). |
| * Fixed sockaddr_un.sun_path name in decoded output. |
| (Addresses Debian bug #554946). |
| * Fixed to avoid potential core file clobbering on exit. |
| (Addresses Debian bug #656398). |
| * Fixed a typo in documentation. |
| (Addresses Debian bug #653309). |
| * Fixed decoding of timer id returned by timer_create. |
| * Fixed epoll_create1, epoll_wait and epoll_pwait decoding. |
| * Fixed *at syscalls flags decoding. |
| * Fixed ARM EABI 64-bit syscall's arguments decoding. |
| * Fixed semtimedop decoding on s390. |
| * Fixed osf_sigprocmask decoding on alpha. |
| * Fixed ipc and socket subcall decoding on several architectures. |
| * Corrected syscall entries for epoll_pwait, epoll_create, epoll_ctl, |
| epoll_wait, mincore, mlockall, prctl, reboot, sendfile, sendfile64, |
| sendmsg, sgetmask, ssetmask, swapon, tgkill and tkill syscalls. |
| * Corrected io_* syscall entries on ARM. |
| * Fixed PID prefix printing in "strace -oLOG -ff -p1 -p2 -p3" case. |
| * Fixed logging of unfinished lines in "strace -oLOG -ff" case. |
| * Fixed build when libaio-devel is not available. |
| * Fixed configure checks for PTRACE_* constants. |
| * Fixed compilation warnings remained on several architectures. |
| |
| * Portability |
| * Removed all non-Linux code. After years of neglect, that dead code |
| just hampered further strace development. |
| * Linux kernel >= 2.6.18 is recommended. Older versions might still |
| work but they haven't been thoroughly tested with this release. |
| |
| Noteworthy changes in release 4.6 (2011-03-15) |
| ============================================== |
| |
| * Changes in behavior |
| * Print diagnostic information about changes in personality mode to |
| standard error instead of standard output. |
| |
| * Improvements |
| * Implemented a new method of following clone, fork, and vfork |
| syscalls using the Linux kernel's explicit facilities for tracing |
| creation of threads and child processes. |
| * Implemented CLONE_PARENT and CLONE_UNTRACED flags handling. |
| * Implemented decoding of TLS syscalls on m68k. |
| * Implemented biarch support on powerpc64. |
| * Implemented biarch support for getrlimit() and setrlimit(). |
| * Implemented decoding of struct ucred in getsockopt SO_PEERCRED. |
| * Implemented SOL_SCTP socket options decoding. |
| * Added HDIO_* ioctl names. |
| (Addresses Debian bug #450953). |
| * Added LOOP_* ioctl names. |
| * Updated lists of CLOCK_*, CLONE_*, MS_*, and SOL_* constants |
| to match Linux 2.6.37. |
| * Updated the list of IPPROTO_* constants to match netinet/in.h. |
| * Implemented decoding of HDIO_* and BLK* ioctls. |
| * Added MicroBlaze architecture support. |
| * Added new syscall entries to match Linux 2.6.37. |
| * Regenerated list of ioctl names from Linux 2.6.37. |
| * Enhanced signal notification decoding. |
| * Documented -C and -D options. |
| |
| * Bug fixes |
| * Fixed fetching syscall arguments on m68k. |
| * Fixed an error when judging whether a process has children. |
| * Fixed get/set_robust_list syscall numbers for powerpc. |
| * Fixed a corner case in printing clone flags. |
| * Fixed cross-compiling issues. |
| * Fixed build issues on powerpc64, SH and SPARC. |
| * Fixed syscall flags of fstatat*, mmap, mmap2, fadvise64*, swapoff, |
| fgetxattr, flistxattr, fremovexattr, epoll_create, fallocate, |
| fanotify_init, and fanotify_mark syscalls. |
| * Fixed decoding of get[ug]id, gete[ug]id and setfs[ug]id return values. |
| * Fixed biarch support in IO dumping. |
| * Fixed raw exit_group decoding. |
| * Fixed decoding of file descriptors on 64-bit architectures. |
| * Fixed a corner case in waitpid handling. |
| (Addresses Red Hat bug #663547). |
| * Fixed stat64 decoding on mips |
| (Addresses Debian bug #599028). |
| * Fixed misleading italics in the manual page. |
| (Addresses Debian bug #589323). |
| |
| Noteworthy changes in release 4.5.20 (2010-04-13) |
| ================================================= |
| |
| * Improvements |
| * Implemented decoding of new linux syscalls: inotify_init1, recvmmsg. |
| * Implemented basic decoding of new linux syscalls: preadv, pwritev, |
| rt_tgsigqueueinfo, perf_event_open. |
| * Enhanced decoding of recently added syscalls on non-x86 architectures |
| by replacing a bare decoder with elaborate parsers enabled earlier |
| for x86/x86-64. |
| * Implemented -C option to combine regular and -c output. |
| (Addresses Debian bug #466196) |
| * Enhanced decoding of mbind and mremap syscalls. |
| * Enhanced SOL_PACKET socket options decoding. |
| * Regenerated list of ioctl names from linux 2.6.33. |
| * Added TILE architecture support. |
| |
| * Bug fixes |
| * Fixed build with Linux kernel headers 2.6.32-rc5+. |
| (Addresses Debian bug #560516 and Fedora bug #539044) |
| * Fixed build on mips. |
| * Fixed handling of Linux systems without struct statfs64. |
| * Fixed reporting signal mask by sigreturn on powerpc. |
| * Fixed potential stack buffer overflow in select decoder. |
| (Addresses Fedora bug #556678) |
| * Corrected msgsnd indirect ipccall decoding. |
| * Corrected decoding of 64bit syscalls. |
| (Addresses Debian bug #570603) |
| * Corrected getsockopt decoding on architectures where |
| sizeof(long) > sizeof(int). |
| (Addresses Debian bug #494844) |
| * Corrected decoding of epoll_pwait. |
| (Addresses Debian bug #513014) |
| * Corrected handling of killed threads. |
| |
| Noteworthy changes in release 4.5.19 (2009-10-21) |
| ================================================= |
| |
| * Changes in behavior |
| * When command exits, strace now exits with the same exit status. |
| If command is terminated by a signal, strace terminates itself |
| with the same signal, so that strace can be used as a wrapper |
| process transparent to the invoking parent process. |
| When using -p option, the exit status of strace is zero unless |
| there was an unexpected error in doing the tracing. |
| (Addresses Fedora bug #105371 and Debian bug #37665) |
| |
| * Improvements |
| * Implemented decoding of new Linux syscalls: accept4, dup3, |
| epoll_create1, eventfd2, inotify_init1, pipe2, signalfd4. |
| * Implemented decoding of socket type flags introduced in Linux 2.6.27. |
| * Implemented decoding of accept4 socketcall. |
| * Enhanced prctl decoding. |
| * Enhanced nanosleep decoding. |
| * Enhanced ptrace decoding. |
| * Enhanced futex decoding. |
| * Enhanced CAP_* decoding. |
| * Enhanced SIOCS* ioctls decoding. |
| * Enhanced fcntl F_* flags decoding. |
| * Enhanced semop/semtimedop decoding. |
| * Updated ARM architecture support. |
| * Added Blackfin architecture support. |
| * Added AVR32 architecture support. |
| * Added CRIS architecture support. |
| * Made strace detect when traced process suddenly disappeared. |
| |
| * Bug fixes |
| * Fixed syscall numbers for tee and sync_file_range. |
| (Addresses Debian bug #503124) |
| * Fixed several bugs in strings decoder, including potential heap |
| memory corruption. |
| (Addresses Fedora bugs #470529, #478324 and #511035) |
| * Marked sendfile(2) as a network syscall. |
| (Addresses Debian bug #509499) |
| * Fixed accept(2) decoding. |
| (Addresses Debian bug #507573) |
| * Fixed sigtimedwait(2) decoding. |
| * Fixed build on ARM EABI. |
| (Addresses Debian bugs #520084 and #535564, and Fedora bug #507576) |
| * Fixed display of 32-bit fcntl(F_SETLK) on 64-bit architectures. |
| (Addresses Red Hat bug #471169) |
| * Fixed display of 32-bit argv array on 64-bit architectures. |
| (Addresses Fedora bug #519480) |
| * Fixed display of 32-bit struct sigaction on 64-bit architectures. |
| * Fixed HPPA architecture support. |
| (Addresses Debian bugs #437928 and #546619) |
| |
| Changes in 4.5.18 |
| ============== |
| * Bug fixes. |
| * Support new Linux/PPC system call subpage_prot and PROT_SAO flag. |
| * In sigaction system call, display sa_flags value along with SIG_DFL/SIG_IGN. |
| |
| Changes in 4.5.17 |
| ============== |
| * Many bug fixes. |
| * -F is now deprecated, -f has traced vfork too on Linux for a long time now. |
| * Print O_CLOEXEC, MSG_CMSG_CLOEXEC flag bits. |
| * Improved output for prctl system call on Linux. |
| * Improved support for Linux/ARM. |
| * SA_NOMASK is now spelled SA_NODEFER, and SA_ONESHOT is spelled SA_RESETHAND. |
| |
| Changes in 4.5.16 |
| ============== |
| * Bug fixes. |
| * Improved output for delete_module, futex, and mbind system calls on Linux. |
| * Improved output for SG_IO ioctls on Linux. |
| * Support new Linux system calls move_pages, utimensat, signalfd, timerfd, |
| eventfd, getcpu, epoll_pwait. |
| |
| Changes in 4.5.15 |
| ============== |
| * Bug fixes. |
| * Several biarch improvements. |
| * Improved output for adjtimex, sysctl, quotactl, mount, umount. |
| * Support new Linux system calls *at, inotify*, pselect6, ppoll and unshare. |
| |
| Changes in 4.5.14 |
| ============== |
| * Bug fixes. |
| * Accept numeric system calls in -e. |
| |
| Changes in 4.5.13 |
| ============== |
| * Bug fixes. |
| * Introduce "-e trace=desc". |
| |
| Changes in 4.5.12 |
| ============== |
| * Bug fixes. |
| * Better x86-64 support for IA32 processes. |
| * Update PowerPC system calls. |
| * Better printing for Linux aio system calls. |
| |
| Changes in 4.5.11 |
| ============== |
| * Quick fix release for build issues. |
| * One fix for Linux/ARM system call table. |
| |
| Changes in 4.5.10 |
| ============== |
| * Bug fixes. |
| * Print fault address for SIGSEGV/SIGBUS signals when available. |
| |
| Changes in 4.5.9 |
| ============== |
| * Bug fixes. |
| * Improve socket ioctl printing. |
| * Update Linux/IA64 syscall list. |
| * Fix Linux/x86-64 syscall argument extraction for 32-bit processes. |
| * Improve mount flags printing. |
| * Support symbolic printing of x86_64 arch_prctl parameters. |
| |
| Changes in 4.5.8 |
| ============== |
| * Bug fixes. |
| * Update syscall tables for Alpha, ARM, HPPA. |
| * Support new Linux syscalls mbind, set_mempolicy, get_mempolicy, waitid. |
| * Support Linux syscalls fadvise64, fadvise64_64, and epoll_*. |
| * Improve ioctl command name matching. |
| * Print RTC_* ioctl structure contents. |
| * Support newer RLIMIT_* values. |
| * Print struct cmsghdr details in sendmsg. |
| |
| Changes in 4.5.7 |
| ============== |
| * Bug fixes. |
| * Print attribute values in *xattr system calls on Linux. |
| * Include pread and pwrite calls in -e read and -e write tracing. |
| * Update SO_* and IP_* value lists and add IPV6_* values for socket options. |
| * Print clock_t values symbolically in Linux clock_* system calls. |
| |
| Changes in 4.5.6 |
| ============== |
| * Bug fixes, Linux ioctl updates. |
| * David Miller contributed support for Linux/SPARC64. |
| |
| Changes in 4.5.5 |
| ============== |
| * Just bug fixes. |
| |
| Changes in 4.5.4 |
| ============== |
| * Update Linux ioctl lists. |
| * Update PF_* and AF_* value lists. |
| * The 4.5.3 -p behavior for NPTL threads applies only under -f, and got fixed. |
| |
| Changes in 4.5.3 |
| ============== |
| * Bug fixes. |
| * On Linux using NPTL threads, -p will now attach to all threads in a process. |
| * Handle new mq_* system calls in Linux 2.6.6 and later. |
| |
| Changes in 4.5.2 |
| ============== |
| * Bug fixes. |
| * Report some new VM_* bit values on Linux. |
| * Better output for Linux sched_* system calls. |
| |
| Changes in 4.5.1 |
| ============== |
| * Bug fixes. |
| * Display multiple ioctl name matches on Linux. |
| |
| Changes in 4.5 |
| ============== |
| * New port to AMD's x86-64 architecture. One strace binary can |
| handle both new x86-64 and old i386 processes. |
| * Fixed support for LFS64 calls. |
| * New switch -E to add/remove environment variables for the command. |
| * Merged s390/s390x port. |
| * Trace an unbounded number of processes. |
| * Handle numerous new system calls in Linux 2.5, and new threads semantics. |
| * Fixed bugs with attach/detach leaving things stopped. |
| * Fixed traced process seeing ECHILD despite live, traced children |
| in waitpid calls with WNOHANG. |
| * Stuart Menefy contributed a port to Linux/SH. |
| * Stephen Thomas contributed a port to Linux/SH64. |
| * Many other bug fixes. |
| |
| Changes in 4.4 |
| ============== |
| * Fix Linux/ia64 support, looks like someone renamed a few things on us |
| * Fix the ioctl setup for Linux, turned out it did not really work. |
| Improve the ioctl extractor as well so we decode some more ones. |
| |
| Changes in 4.3.1 |
| ================ |
| * compile fixes for Linux/mips |
| |
| Changes in 4.3 |
| ============== |
| * Linux ia64 and hppa ports added |
| * The usual Linux syscall updates (includes 32bit uid/gid support), |
| * Linux ioctl list updated |
| * Support IPv6 scope ids |
| * FreeBSD/i386 port added |
| * UnixWare and Solaris updates |
| * Better support for tracing multithreaded processes in Linux |
| |
| Changes in 4.2 |
| ============== |
| * Compiles on glibc2.0 systems again |
| * Linux/S390 port added |
| * The usual Linux syscall updates |
| * we can follow fork on arm now |
| |
| Changes in 4.1 |
| ================ |
| * Linux/MIPS port added |
| * Lots of Linux updates again |
| * Improved IPv6 support |
| * Add strace-graph |
| |
| Changes in 4.0.1 |
| ================ |
| * Minor bugfixes |
| * Compiles on glibc2.0 systems again |
| |
| Changes in 4.0 |
| ============== |
| * Get stat structure properly on Linux 64bit archs |
| * Personalities work again |
| * Compile correctly on SunOS again |
| * IRIX64 updates |
| * Solaris updates |
| |
| Changes in 3.99.1 |
| ================= |
| * Linux (ultra)sparc fixes |
| * Linux alpha fixes |
| * Minor cleanups |
| |
| Changes in 3.99 |
| =============== |
| * New maintainer |
| * add support for more Linux architectures (powerpc, sparc, arm) |
| * support lots more Linux syscalls |
| * fix signal handling |
| * add IPX and IPIP support |
| * check stray syscall after execv |
| * fix hanging children |
| |
| Changes in version 3.1 |
| ====================== |
| |
| * Irix5 is supported |
| * Linux 68k is supported |
| * Linux alpha is supported |
| * configure is upgraded to autoconf 2.x |
| * using -f in combination with -e now works correctly |
| * output can be piped to a program |
| * tracing setuid programs works better |
| * it is now reasonable to install strace setuid to root in some circumstances |
| * new useful tracing names like file and process to trace whole |
| classes of system calls, e.g. -efile traces all system calls that |
| take a file name as an argument |
| * IPC calls on SunOS 4.1.x are decoded |
| * Linux program memory is reliably dereferenced |
| * Linux decodes at least the name of all syscalls as of pre2.0.4 |
| * various cosmetic changes and bug fixes |
| |
| Changes from versions 2.x to version 3.0 |
| ======================================== |
| |
| * filename arguments are neither abbreviated nor stringified |
| * string arguments are now true C strings using octal instead of hex by default |
| * preprocessor constants are never shortened (e.g. was RDONLY => now O_RDONLY) |
| * by default the output for multiple processes now goes into one file |
| * all structures, vectors, bitsets, etc. use consistent output formats |
| * the -c option now means count calls, -i does what the old -c used to do |
| |
| New Features in version 3.0 |
| =========================== |
| |
| * non-ascii strings can be optionally printed entirely in hex |
| * the output format is readable when multiple processes are generating output |
| * exit values are printed in an alignment column |
| * is is possible to suppress messages about attaching and detaching |
| * various tracing features can be enabled on a per syscall/signal/desc basis |
| * selective tracing of syscalls |
| * selective printing of syscall structures |
| * selective abbreviation of long structures on a per syscall basis |
| * selective printing of raw syscall arguments and results |
| * selective tracing of signals |
| * selective dumping of all I/O read from file descriptors |
| * selective dumping of all I/O written to file descriptors |
| * optional counting of time, calls, and errors for each syscall |