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strace-4.7.tar.xz 2012-05-02 403.3 kB 225225 weekly downloads
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README-4.7.txt 2012-05-01 3.8 kB 11 weekly downloads
Noteworthy changes in release 4.7 ================================= * 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.
Source: README-4.7.txt, updated 2012-05-01