884 lines
38 KiB
Plaintext
884 lines
38 KiB
Plaintext
Noteworthy changes in release 4.16 (2017-02-14)
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===============================================
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* Improvements
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* Implemented syscall return value injection (-e inject=SET:retval= option).
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* Implemented signal injection (-e inject=SET:signal= option).
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* Implemented decoding of SUID_DUMP_* constants in PR_[GS]ET_DUMPABLE.
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* Implemented decoding of all SG_* ioctl commands.
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* Implemented decoding of ustat syscall.
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* Implemented decoding of BPF_OBJ_PIN, BPF_OBJ_GET, BPF_PROG_ATTACH,
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and BPF_PROG_DETACH commands of bpf syscall.
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* Enhanced decoding of sg_io_hdr and sg_io_v4 structures.
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* Enhanced decoding of get_robust_list, getrandom, io_submit, set_robust_list
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syscalls.
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* Enhanced decoding of entities of kernel long type on x32 and mips n32 ABIs.
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* Updated lists of IP_*, IPV6_*, and LOOP_* constants.
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* Updated lists of ioctl commands from Linux 4.10.
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* Added decoding of recently added syscalls on avr32, microblaze, ppc,
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and ppc64.
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* Bug fixes
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* Fixed pathmatch of oldselect syscall on 64-bit architectures.
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* Fixed decoding of mmap2 syscall on s390 when arguments are not available.
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* Fixed decoding of kexec_file_load, mprotect, pkey_mprotect, prctl, preadv*,
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and pwritev* syscalls on x32.
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* Fixed printing of string arguments of getxattr and setxattr syscalls
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when -s option is used to limit the printed string size.
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* Fixed decoding of ifconf, ifreq, and loop_info structures on non-native
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personalities.
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* Fixed decoding of SG_* and LOOP_* ioctl commands.
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* Fixed build on mips with musl libc.
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* Fixed cross-building of ioctlsort.
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* Applied minor formatting fixes to the manual page.
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Noteworthy changes in release 4.15 (2016-12-14)
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===============================================
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* Changes in behavior
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* Time stamps are now printed according to ISO 8601.
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* Changed output format of val3 parameter of futex FUTEX_WAKE_OP operation.
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* The last argument of mincore, sched_getaffinity, and sched_setaffinity
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syscalls is now formatted as an array.
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* Improvements
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* Implemented syscall fault injection (-e fault=... option).
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* Implemented decoding of DM_* ioctl commands.
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* Implemented decoding of attr parameter of perf_event_open syscall.
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* Implemented decoding of pkey_alloc, pkey_free, and pkey_mprotect syscalls.
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* Implemented dumping of mq_timedsend and mq_timedreceive syscalls.
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* Implemented decoding of PR_SET_FP_MODE and PR_GET_FP_MODE operations
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of prctl syscall.
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* Implemented PTRACE_GETREGS API support on m68k.
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* Updated lists of ARCH_*, BPF_*, BTRFS_*, FALLOC_*, MS_*, *_MAGIC,
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and V4L2_* constants.
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* Updated lists of ioctl commands from Linux 4.9.
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* Added decoding of recently added syscalls on arc, x32, and xtensa.
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* Enhanced manual page.
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* Bug fixes
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* Fixed corner cases in decoding of exit, exit_group, futimesat, getgroups,
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getresuid, init_module, inotify_init1, kcmp, kexec_load, lookup_dcookie,
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mq_getsetattr, mq_notify, mq_open, mq_timedreceive, mq_timedsend,
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name_to_handle_at, prctl, process_vm_readv, process_vm_writev, setfsuid,
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setgroups, setns, unshare, and utimes syscalls.
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* Fixed handling of verbose flag in printing of controls array
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of struct v4l2_ext_controls.
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* Fixed omission of field names in the output of capability, sigaction,
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sigevent, statfs, timespec, timeval, and utimbuf structures.
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* Fixed printing of unknown syscalls in siginfo structure.
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* Fixed decoding of ioctl constants on m68k.
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* Fixed cris architecture support.
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* Fixed cross build when host compiler does not support the same
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set of warning flags as the cross compiler.
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* Fixed build on SLE10 and SLE11.
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Noteworthy changes in release 4.14 (2016-10-04)
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===============================================
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* Changes in behavior
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* When using -p option without a command and no processes has been attached,
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strace exits with exit status 1.
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* Improvements
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* Added printing of the mode argument of open and openat syscalls
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when O_TMPFILE flag is set. (Addresses Fedora bug #1377846).
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* Enhanced -e abbrev=set, -e raw=set, and -e verbose=set.
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* Enhanced decoding of futex, keyctl, quotactl, timerfd_settime,
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and aio family syscalls.
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* Implemented fetching of the 7th subcall argument on mips o32.
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* Updated lists of BPF_*, ETH_P_*, KEXEC_ARCH_*, SCTP_*, TCP_*, and *_MAGIC
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constants.
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* Updated lists of ioctl commands from Linux 4.8.
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* Added decoding of new syscalls on sh and sh64.
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* Added RISC-V architecture support.
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* Bug fixes
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* Marked io_setup and io_destroy as memory mapping related syscalls.
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* Fixed leakage of placeholder descriptors to tracees.
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* Fixed printing of mode_t, umode_t, and umask types.
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* Fixed decoding of iovec arrays without a limit on total data size.
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* Fixed decoding of fadvise64, fallocate, futex, keyctl, quotactl, readahead,
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and ipc family syscalls.
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* Fixed decoding of invalid syscalls mapped to indirect subcalls.
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* Fixed decoding of struct btrfs_ioctl_vol_args_v2 on non-native
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personalities.
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* Fixed decoding of PTRACE_DETACH on sparc and sparc64.
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* Fixed decoding of struct stat64 on sparc64.
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* Fixed decoding of uid and gid-related syscalls on sparc64.
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* Fixed decoding of the forth argument of semctl syscall on sparc64.
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* Fixed values of tty ioctl constants on sparc64.
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* Fixed sparc personality support on sparc64.
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Noteworthy changes in release 4.13 (2016-07-26)
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===============================================
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* Improvements
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* Implemented a general netlink socket parser.
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* Enhanced decoding of socket addresses.
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* Enhanced decoding of cmsghdr, msghdr, and mmsghdr structures.
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* Enhanced decoding of accept, accept4, bind, getpeername, getsockname,
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ipc, recvfrom, recvmsg, recvmmsg, sendto, sendmmsg, and socketcall syscalls.
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* Updated lists of AF_*, BPF_MAP_TYPE_*, KEY_*, KEYCTL_*, RWF_*, SS_*,
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and *_MAGIC constants.
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* Updated lists of ioctl commands from Linux 4.7.
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* Bug fixes
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* Fixed decoding of pid_t argument of prlimit64 syscall.
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* Fixed sign extension issues in the parser of struct rusage.
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* Fixed race condition in decoding of timeout argument of recvmmsg and
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rt_sigtimedwait syscalls.
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* Fixed build with fresh linux kernel headers.
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Noteworthy changes in release 4.12 (2016-05-31)
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===============================================
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* Improvements
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* Implemented simultaneous use of -p option and tracing of a command.
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(addresses Debian bug #549942).
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* Implemented caching of netlink conversations to reduce amount of time
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spent in decoding socket details in -yy mode.
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* Implemented -yy mode decoding of protocol:portid pairs associated with
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netlink socket descriptors.
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* Implemented decoding of copy_file_range, preadv2, and pwritev2 syscalls.
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* Implemented dumping of preadv, preadv2, pwritev, pwritev2, and vmsplice
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syscalls.
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* Implemented decoding of BTRFS_* and UFFDIO_* ioctl commands.
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* Enhanced decoding of BLK*, EVIOC*, RTC_*, and VIDIOC_* ioctl commands.
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* Enhanced decoding of fstatfs, fstatfs64, get_mempolicy, getdents,
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getdents64, getgroups, getpriority, kill, mbind, migrate_pages, mknod,
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mknodat, personality, poll, ppoll, quotactl, rt_sigpending,
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rt_sigqueueinfo, rt_sigtimedwait, rt_tgsigqueueinfo, sched_getaffinity,
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sched_setaffinity, seccomp, set_mempolicy, setgroups, setpriority, statfs,
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statfs64, tgkill, waitid, and xattr family syscalls.
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* Enhanced decoding of getxpid, getxuid, and getxgid syscalls on alpha.
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* Enhanced decoding of pipe syscall on alpha, ia64, mips, sh, and sparc.
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* Added decoding of bind, listen, and setsockopt direct syscalls on sparc.
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* Added decoding of osf_statfs64 and osf_fstatfs64 syscalls on alpha.
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* Added decoding of fadvise64 and fadvise64_64 on s390.
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* Updated lists of AF_*, BPF_MAP_TYPE_*, CLONE_*, EPOLL*, IPV6_*, MADV_*,
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MSG_*, PTRACE_*, SEGV_*, SO_*, SOL_*, *_MAGIC, and quotactl constants.
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* Updated lists of ioctl commands from Linux 4.6.
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* Bug fixes
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* Fixed build on arc, metag, nios2, or1k, and tile architectures.
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* Fixed decoding of 32-bit times syscall return value on 64-bit architectures.
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* Fixed decoding of mlock2 syscall on sparc.
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* Fixed decoding of osf_shmat syscall on alpha.
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* Fixed decoding of syscalls unknown to the kernel on s390/s390x.
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(addresses Debian bug #485979 and Fedora bug #1298294).
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* Fixed decoding of preadv syscall in case of short read.
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* Fixed decoding and dumping of readv syscall in case of short read.
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* Fixed dumping of recvmsg and recvmmsg syscalls in case of short read.
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* Fixed decoding of mincore syscall's last argument.
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* Fixed remaining errors in mapping between syscall numbers and numbers
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of syscall arguments.
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* Applied various fixes to strace-graph script.
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Noteworthy changes in release 4.11 (2015-12-21)
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===============================================
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* Changes in behavior
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* Some syscalls have different names depending on architecture and
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personality. In these cases, syscall filtering and printing now
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consistently uses the names that match corresponding __NR_* kernel
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macros of the tracee's architecture and personality.
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* Added strace prefix to all diagnostic messages.
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* Improvements
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* Enhanced and extended test suite.
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* Implemented reliable tracing of processes whose personality differs
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from the personality of strace, fixed decoding of 32-bit personality
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syscalls on 64-bit architectures.
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* When some data referenced by syscall arguments is irrelevant or cannot
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be read from tracee's memory, strace now prints its address consistently.
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* When a syscall is restarted using restart_syscall mechanism, strace now
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shows the syscall name on architectures that expose this information.
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* Print values returned by epoll_create1, eventfd, eventfd2, fanotify_init,
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inotify_init1, perf_event_open, pipe, pipe2, signalfd, signalfd4, socket,
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socketpair, timerfd, and timerfd_create syscalls, as well as F_DUPFD and
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F_DUPFD_CLOEXEC fcntl commands, as file descriptors.
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* Optimized decoding of indirect socket syscalls.
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* Implemented decoding of nanoseconds along with seconds in stat family
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syscalls (addresses Fedora bug #1251176).
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* Implemented decoding of struct statfs.f_flags in statfs syscall.
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* Implemented decoding of siginfo_t.si_syscall and siginfo_t.si_arch
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in SIGSYS signal.
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* Implemented decoding of indirect syscall on mips o32.
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* Implemented decoding of IPPROTO_IP control messages.
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* Implemented decoding of setsockopt syscall multicast arguments.
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* Enhanced decoding of struct sigevent.
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* Enhanced decoding of block, loop, mtd, ptp, rtc, SG_IO, socket, tty,
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and v4l2 ioctl syscall arguments.
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* Enhanced decoding of epoll_create, fcntl, fcntl64, futex, getdents,
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getdents64, getsockopt, io_*, mount, msgctl, prctl, quotactl, recvfrom,
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sendfile, setsockopt, and shmctl syscalls.
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* Implemented decoding of bpf, execveat, ioperm, iopl, kcmp, kexec_file_load,
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lookup_dcookie, membarrier, memfd_create, mlock2, name_to_handle_at,
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open_by_handle_at, sched_getattr, sched_setattr, and userfaultfd syscalls.
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* Updated lists of AF_*, EPOLL_*, FALLOC_FL_*, F_*, INPUT_PROP_*, IPPROTO_*,
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IPV6_*, IP_*, KEY_*, LOCK_*, MNT_*, MS_*, PACKET_*, PERF_FLAG_*, PF_*,
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PR_*, PTRACE_O_*, RENAME_*, SCTP_*, SECBIT_*, SO_*, TCP_*, and siginfo_t
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constants.
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* Added Nios II architecture support.
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* Added new syscall entries to match Linux 4.4.
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* Bug fixes
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* Fixed potential short read of strings from tracee's memory.
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* Fixed -qq option in conjunction with -o option.
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* Fixed filtering of <unavailable> syscalls.
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* Fixed decoding of ioctl syscall command on aarch64 and 32-bit architectures
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with 64-bit aligned structures.
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* Fixed decoding of eventfd2, epoll_create1, signalfd4, and sync_file_range2
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syscall flags arguments.
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* Fixed decoding of 4th argument of clock_nanosleep syscall.
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* Fixed decoding of getpagesize syscall on m68k.
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* Fixed decoding of getrandom and seccomp syscalls on aarch64.
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* Fixed decoding of timezone argument of gettimeofday and settimeofday
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* syscalls.
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* Fixed decoding of offset argument of mmap2 syscall on arm, sparc,
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and sparc64.
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* Fixed decoding of pipe syscall on alpha and mips.
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* Fixed decoding of pipe2 syscall on ia64, sh, sparc, and sparc64.
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* Fixed decoding of signal mask argument of pselect6 syscall on x32.
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* Fixed decoding of signal mask of rt_sigreturn syscall on aarch64, m68k,
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and x32.
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* Fixed decoding of 4th argument of semctl indirect syscall.
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* Fixed decoding of sa_restorer and sa_mask of sigaction syscall on m68k.
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* Fixed decoding of statfs64 and fstatfs64 syscalls on arm eabi.
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* Fixed decoding of struct dirent on x32.
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* Fixed decoding of times syscall return value on mips n32 and x32.
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* Fixed decoding of path argument of umount2 syscall
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(addresses Debian bug #785050).
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* Worked around a kernel bug in tracing privileged executables.
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* Fixed various errors in mapping between syscall numbers and associated
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information like the number of syscall arguments, the name of syscall,
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and syscall decoder.
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Noteworthy changes in release 4.10 (2015-03-06)
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===============================================
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* Improvements
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* Added -yy option to print protocol and address information associated with
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socket descriptors.
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* Extended "-e read=set" and "-e write=set" options to cover sendmsg,
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recvmsg, sendmmsg, and recvmmsg syscalls.
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* Implemented full 32-bit decoding of ioctl commands
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(addresses Debian bug #692913 and Fedora bug #902788).
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* Implemented PTRACE_GETREGS API support on ia64.
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* Implemented PTRACE_GETREGS API support on mips.
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* Implemented PTRACE_GETREGSET API support on s390/s390x.
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* Implemented decoding of getrandom and seccomp syscalls.
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* Implemented full decoding of 64-bit capability sets.
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* Implemented decoding of all prctl commands.
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* Implemented decoding of parametrized ioctl commands.
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* Implemented decoding of evdev ioctl commands.
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* Implemented decoding of v4l ioctl commands.
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* Implemented decoding of SG_IO v4 ioctl commands.
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* Implemented decoding of FIFREEZE/FITHAW/FITRIM ioctl commands.
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* Implemented decoding of FALLOC_FL_* fallocate flags.
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* Implemented decoding of rt_sigreturn signal mask on aarch64,
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x32, and x86_64.
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* Enhanced socket decoder to support bluetooth sockets.
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* Enhanced decoding of unlisted ioctl commands.
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* Enhanced decoding of getsockopt and setsockopt syscall.
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* Enhanced decoding of sysinfo syscall.
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* Enhanced decoding of struct cmsghdr.
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* Enhanced decoding of wait status.
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* Enhanced aio support on non-x86 architectures by using external libaio.h.
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* Added O_TMPFILE to the list of recognized open mode flags.
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* Updated the list of filesystem type constants that is used in decoding
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statfs family syscalls.
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* Updated lists of CAP_*, PR_*, PTRACE_*, SCHED_*, SO_*, SOL_*, SWAP_FLAG_*,
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and TFD_* constants.
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* Updated lists of signal constants from Linux 3.19.
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* Updated lists of errno constants from Linux 3.19.
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* Updated lists of ioctl commands from Linux 3.9.
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* Added new syscall entries to match Linux 3.19.
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* Bug fixes
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* Fixed various errors in mapping between syscall numbers and associated
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information like the number of syscall arguments, the name of syscall,
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and syscall decoder.
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* Fixed quoting issues in printing descriptors, filenames, network interface
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names, struct utsname members, device/volume names of BLK* ioctl commands.
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* Fixed uid_t/git_t decoding.
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* Fixed potential out-of-bounds read issues in getdents/getdents64 decoders.
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* Fixed potential open flags truncation on some architectures.
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* Fixed decoding of struct ifreq.ifr_name.
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* Fixed decoding of SIOCSIFNAME ioctl command.
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* Fixed decoding of RENAME_* renameat2 flags.
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* Fixed decoding of UTIME_NOW/UTIME_OMIT timeval structures.
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* Fixed decoding of indirect ipc subcalls on some architectures.
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* Fixed decoding of fanotify_mark syscall on 32-bit architectures.
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* Fixed decoding of 32-bit stat structures on 64-bit architectures.
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* Fixed decoding of 32-bit struct cmsghdr on 64-bit architectures.
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* Fixed decoding of 32-bit preadv/pwritev offset on 64-bit architectures.
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* Fixed decoding of sigreturn/rt_sigreturn signal mask on ia64, ppc, ppc64,
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sparc, sparc64, mips, and s390.
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* Fixed instruction pointer output (-i option) on architectures that support
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several personalities.
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* Fixed behaviour of "-e read=set" and "-e write=set" when read and write
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sets intersect.
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* Fixed build on systems where struct sigaction has no sa_restorer member.
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* Fixed build with uclibc and musl libc.
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* Portability
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* Linux kernel >= 2.5.46 is required.
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Older versions without a decent PTRACE_SETOPTIONS support will not work.
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* On mips, linux kernel >= 2.6.15 is required.
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Older versions without a decent PTRACE_GETREGS support will not work.
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* On s390 and s390x, linux kernel >= 2.6.27 is required.
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Older versions without a decent PTRACE_GETREGSET support will not work.
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Noteworthy changes in release 4.9 (2014-08-15)
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==============================================
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* Changes in behavior
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* Disabled OABI support on ARM EABI systems by default,
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added --enable-arm-oabi option to enable it at configure time.
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* Improvements
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* Added experimental -k option to print stack trace after each traced syscall.
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* Added -w option to produce stats on syscall latency.
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(addresses Debian bug #457497).
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* Added ARC architecture support.
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* Added PTRACE_GETREGS API support on PowerPC.
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* Enhanced Bionic libc and musl libc support.
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* Enhanced tracing of x86 personality processes on x86_64 and x32.
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* Enhanced tracing of ARM personality processes on AArch64.
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* Enhanced 32/64bit personality detection on PowerPC.
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* Implemented decoding of add_key, ioprio_get, ioprio_set, kexec_load, keyctl,
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renameat2, and request_key syscalls.
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* Robustified decoding of select, pselect, and io_submit syscalls.
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* Enhanced decoding of delete_module, fanotify_init, fanotify_mark, fcntl,
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setdomainname, sethostname, setns, and sync_file_range syscalls.
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* Enhanced decoding of signal bitmasks.
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* Enhanced decoding of file descriptors.
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* Enhanced siginfo_t decoding.
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* Enhanced PF_NETLINK decoding.
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* Updated CLOCK_* constants
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(addresses Fedora bug #1088455).
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* Added new syscall entries to match Linux 3.16.
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* Bug fixes
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* Added shmat and shmdt to the set of memory mapping related syscalls.
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* Fixed detaching from stopped processes.
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* Fixed fanotify_mark decoding on 32bit architectures.
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* Fixed offset decoding in preadv and pwritev syscalls.
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* Fixed select decoding for glibc in _FORTIFY_SOURCE mode.
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* Fixed decoding of epoll_ctl syscall with EPOLL_CTL_DEL argument.
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* Fixed build when <sys/ptrace.h> and <linux/ptrace.h> conflict
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(addresses Fedora bug #993384).
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* Miscellaneous corrections in the manual page.
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(Addresses Debian bug #725987).
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Noteworthy changes in release 4.8 (2013-06-03)
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==============================================
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* Changes in behavior
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* In case of normal strace termination, when the trace output is
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redirected to a pipe, strace now closes it and waits for the pipe
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process termination before exit.
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* Improvements
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* Implemented tracing using PTRACE_SEIZE API (when available).
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* Implemented more reliable PTRACE_GETREGSET-based process personality
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detection on x86-64 and x32 (when available).
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* Added -e trace=memory option for tracing memory mapping related syscalls.
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* Documented -b option.
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* Allowed exit status messages to be suppressed by giving -q option twice.
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* Added AArch64 architecture support
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(addresses Debian bug #693074 and Fedora bug #969858).
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* Added support for OpenRISC 1000, Meta, and Xtensa architectures.
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* Added tilegx personality support for Tile.
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* 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 extracter 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
|
|
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New Features in version 3.0
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===========================
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* non-ascii strings can be optionally printed entirely in hex
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* the output format is readable when mutiple processes are generating output
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* exit values are printed in an alignment column
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* is is possible to suppress messages about attaching and detaching
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* various tracing features can be enabled on a per syscall/signal/desc basis
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* selective tracing of syscalls
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* selective printing of syscall structures
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* selective abbreviation of long structures on a per syscall basis
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* selective printing of raw syscall arguments and results
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* selective tracing of signals
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* selective dumping of all I/O read from file descriptors
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* selective dumping of all I/O written to file descriptors
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* optional counting of time, calls, and errors for each syscall
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