| Noteworthy changes in release 4.9 (????-??-??) |
| ============================================== |
| |
| * 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 -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. |
| * Robustified decoding of select, pselect, and io_submit syscalls. |
| * Enhanced decoding of fcntl, 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). |
| |
| * 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 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 |
| |
| New Features in version 3.0 |
| =========================== |
| |
| * non-ascii strings can be optionally printed entirely in hex |
| * the output format is readable when mutiple 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 |