1 Noteworthy changes in release ?.?? (????-??-??) 2 =============================================== 3 4 Noteworthy changes in release 4.10 (2015-03-06) 5 =============================================== 6 7 * Improvements 8 * Added -yy option to print protocol and address information associated with 9 socket descriptors. 10 * Extended "-e read=set" and "-e write=set" options to cover sendmsg, 11 recvmsg, sendmmsg, and recvmmsg syscalls. 12 * Implemented full 32-bit decoding of ioctl commands 13 (addresses Debian bug #692913 and Fedora bug #902788). 14 * Implemented PTRACE_GETREGS API support on ia64. 15 * Implemented PTRACE_GETREGS API support on mips. 16 * Implemented PTRACE_GETREGSET API support on s390/s390x. 17 * Implemented decoding of getrandom and seccomp syscalls. 18 * Implemented full decoding of 64-bit capability sets. 19 * Implemented decoding of all prctl commands. 20 * Implemented decoding of parametrized ioctl commands. 21 * Implemented decoding of evdev ioctl commands. 22 * Implemented decoding of v4l ioctl commands. 23 * Implemented decoding of SG_IO v4 ioctl commands. 24 * Implemented decoding of FIFREEZE/FITHAW/FITRIM ioctl commands. 25 * Implemented decoding of FALLOC_FL_* fallocate flags. 26 * Implemented decoding of rt_sigreturn signal mask on aarch64, 27 x32, and x86_64. 28 * Enhanced socket decoder to support bluetooth sockets. 29 * Enhanced decoding of unlisted ioctl commands. 30 * Enhanced decoding of getsockopt and setsockopt syscall. 31 * Enhanced decoding of sysinfo syscall. 32 * Enhanced decoding of struct cmsghdr. 33 * Enhanced decoding of wait status. 34 * Enhanced aio support on non-x86 architectures by using external libaio.h. 35 * Added O_TMPFILE to the list of recognized open mode flags. 36 * Updated the list of filesystem type constants that is used in decoding 37 statfs family syscalls. 38 * Updated lists of CAP_*, PR_*, PTRACE_*, SCHED_*, SO_*, SOL_*, SWAP_FLAG_*, 39 and TFD_* constants. 40 * Updated lists of signal constants from Linux 3.19. 41 * Updated lists of errno constants from Linux 3.19. 42 * Updated lists of ioctl commands from Linux 3.9. 43 * Added new syscall entries to match Linux 3.19. 44 45 * Bug fixes 46 * Fixed various errors in mapping between syscall numbers and associated 47 information like the number of syscall arguments, the name of syscall, 48 and syscall decoder. 49 * Fixed quoting issues in printing descriptors, filenames, network interface 50 names, struct utsname members, device/volume names of BLK* ioctl commands. 51 * Fixed uid_t/git_t decoding. 52 * Fixed potential out-of-bounds read issues in getdents/getdents64 decoders. 53 * Fixed potential open flags truncation on some architectures. 54 * Fixed decoding of struct ifreq.ifr_name. 55 * Fixed decoding of SIOCSIFNAME ioctl command. 56 * Fixed decoding of RENAME_* renameat2 flags. 57 * Fixed decoding of UTIME_NOW/UTIME_OMIT timeval structures. 58 * Fixed decoding of indirect ipc subcalls on some architectures. 59 * Fixed decoding of fanotify_mark syscall on 32-bit architectures. 60 * Fixed decoding of 32-bit stat structures on 64-bit architectures. 61 * Fixed decoding of 32-bit struct cmsghdr on 64-bit architectures. 62 * Fixed decoding of 32-bit preadv/pwritev offset on 64-bit architectures. 63 * Fixed decoding of sigreturn/rt_sigreturn signal mask on ia64, ppc, ppc64, 64 sparc, sparc64, mips, and s390. 65 * Fixed instruction pointer output (-i option) on architectures that support 66 several personalities. 67 * Fixed behaviour of "-e read=set" and "-e write=set" when read and write 68 sets intersect. 69 * Fixed build on systems where struct sigaction has no sa_restorer member. 70 * Fixed build with uclibc and musl libc. 71 72 * Portability 73 * Linux kernel >= 2.5.46 is required. 74 Older versions without a decent PTRACE_SETOPTIONS support will not work. 75 * On mips, linux kernel >= 2.6.15 is required. 76 Older versions without a decent PTRACE_GETREGS support will not work. 77 * On s390 and s390x, linux kernel >= 2.6.27 is required. 78 Older versions without a decent PTRACE_GETREGSET support will not work. 79 80 Noteworthy changes in release 4.9 (2014-08-15) 81 ============================================== 82 83 * Changes in behavior 84 * Disabled OABI support on ARM EABI systems by default, 85 added --enable-arm-oabi option to enable it at configure time. 86 87 * Improvements 88 * Added experimental -k option to print stack trace after each traced syscall. 89 * Added -w option to produce stats on syscall latency. 90 (addresses Debian bug #457497). 91 * Added ARC architecture support. 92 * Added PTRACE_GETREGS API support on PowerPC. 93 * Enhanced Bionic libc and musl libc support. 94 * Enhanced tracing of x86 personality processes on x86_64 and x32. 95 * Enhanced tracing of ARM personality processes on AArch64. 96 * Enhanced 32/64bit personality detection on PowerPC. 97 * Implemented decoding of add_key, ioprio_get, ioprio_set, kexec_load, keyctl, 98 renameat2, and request_key syscalls. 99 * Robustified decoding of select, pselect, and io_submit syscalls. 100 * Enhanced decoding of delete_module, fanotify_init, fanotify_mark, fcntl, 101 setdomainname, sethostname, setns, and sync_file_range syscalls. 102 * Enhanced decoding of signal bitmasks. 103 * Enhanced decoding of file descriptors. 104 * Enhanced siginfo_t decoding. 105 * Enhanced PF_NETLINK decoding. 106 * Updated CLOCK_* constants 107 (addresses Fedora bug #1088455). 108 * Added new syscall entries to match Linux 3.16. 109 110 * Bug fixes 111 * Added shmat and shmdt to the set of memory mapping related syscalls. 112 * Fixed detaching from stopped processes. 113 * Fixed fanotify_mark decoding on 32bit architectures. 114 * Fixed offset decoding in preadv and pwritev syscalls. 115 * Fixed select decoding for glibc in _FORTIFY_SOURCE mode. 116 * Fixed decoding of epoll_ctl syscall with EPOLL_CTL_DEL argument. 117 * Fixed build when <sys/ptrace.h> and <linux/ptrace.h> conflict 118 (addresses Fedora bug #993384). 119 * Miscellaneous corrections in the manual page. 120 (Addresses Debian bug #725987). 121 122 Noteworthy changes in release 4.8 (2013-06-03) 123 ============================================== 124 125 * Changes in behavior 126 * In case of normal strace termination, when the trace output is 127 redirected to a pipe, strace now closes it and waits for the pipe 128 process termination before exit. 129 130 * Improvements 131 * Implemented tracing using PTRACE_SEIZE API (when available). 132 * Implemented more reliable PTRACE_GETREGSET-based process personality 133 detection on x86-64 and x32 (when available). 134 * Added -e trace=memory option for tracing memory mapping related syscalls. 135 * Documented -b option. 136 * Allowed exit status messages to be suppressed by giving -q option twice. 137 * Added AArch64 architecture support 138 (addresses Debian bug #693074 and Fedora bug #969858). 139 * Added support for OpenRISC 1000, Meta, and Xtensa architectures. 140 * Added tilegx personality support for Tile. 141 * Enhanced support of NOMMU architectures. 142 * Enhanced decoding of getdents, mmap, perf_event_open, ptrace, and 143 quotactl syscalls. 144 * Added new syscall entries to match Linux 3.9. 145 * Regenerated the list of common ioctl names from Linux 3.9. 146 * Updated the list of errno constants. 147 * Updated lists of AF_*, MADV_*, MAP_*, MSG_*, MS_*, PF_*, PR_*, 148 PTRACE_O_*, and TCP_* constants. 149 * Implemented decoding of UBI ioctls. 150 * Removed redundant "*32" ioctl names. 151 152 * Bug fixes 153 * Fixed ERESTARTNOINTR leaking to userspace on ancient kernels 154 (addresses Fedora bug #659382). 155 * Fixed kernel release string parsing 156 (addresses Debian bug #702309). 157 * Fixed decoding of *xattr syscalls 158 (addresses Fedora bug #885233). 159 * Fixed handling of files with 64-bit inode numbers by 32-bit strace 160 (addresses Fedora bug #912790). 161 * Fixed tracing forks on SPARC. 162 * Fixed decoding of fadvise64, fallocate, ftruncate64, io_submit, pread, 163 preadv, pwrite, pwritev, readahead, sigaltstack, sync_file_range, sysctl, 164 and truncate64 syscalls. 165 * Fixed categories of multiple syscalls on most of supported architectures. 166 * Fixed decoding of non-native 32-bit personality recv[m]msg syscalls. 167 * Fixed decoding of multiple 32-bit personality syscalls on x32. 168 * Fixed decoding of long long syscall arguments on ARM, MIPS/o32, PowerPC, 169 S390x, and Tile architectures. 170 * Fixed semtimedop decoding on S390x. 171 * Fixed sram_alloc decoding on Blackfin. 172 * Fixed build when process_vm_readv is a stab. 173 * Fixed build with older versions of libaio.h. 174 175 Noteworthy changes in release 4.7 (2012-05-02) 176 ============================================== 177 178 * Changes in behavior 179 * strace no longer suspends waitpid until there is a child 180 for waitpid'ing process to collect status from. 181 * strace no longer detaches from a tracee which is supposed 182 to be going to die. 183 * strace now issues a new message: "+++ exited with EXITCODE +++" 184 which shows exact moment strace got exit notification, 185 analogous to existing "+++ killed by SIG +++" message. 186 187 * Improvements 188 * Added x32 personality support (x86_64 architecture). 189 * Added -y and -P options to print file descriptor paths and 190 filter by those paths. 191 * Added -I option to control strace interactivity. 192 * Allowed -p option to take comma or whitespace-separated list of PIDs. 193 * Added strace_log_merge script helper to merge timestamped "strace -ff" 194 log files. 195 * Implemented decoding of clock_adjtime, get_robust_list, migrate_pages, 196 preadv, prlimit64, process_vm_readv, process_vm_writev, pwritev, 197 recvmmsg, recvmsg, rt_tgsigqueueinfo, sendmmsg, setns, set_robust_list, 198 sched_rr_get_interval, splice, syslog, tee and vmsplice syscalls. 199 * Enhanced decoding of capget, capset, getrlimit, flistxattr, io_submit, 200 listxattr, setrlimit and swapon syscalls. 201 * Implemented decoding of loop and mtd ioctls. 202 * Added syscall entries for new linux syscalls. 203 * Added syscall entries for direct socket system calls on powerpc. 204 * Updated the list of errno constants. 205 * Updated lists of MSG_*, STA_*, and TCP_* constants. 206 * Regenerated the list of ioctl names from Linux 3.3. 207 * Enhanced switching between processes with different personalities. 208 * Enhanced signals reporting by using short signal names. 209 * Made ERESTART* messages more descriptive. 210 * Made parsing of numbers from strings more robust. 211 * Added support for compat_statfs64 and statfs64.f_flags. 212 * Changed read of data blocks to use single process_vm_readv syscall 213 (when available) instead of several PTRACE_PEEKDATA operations. 214 * Changed read of registers on x86 and x86-64 to use single PTRACE_GETREGS 215 operation instead of several PTRACE_PEEKUSER operations. 216 * Applied various optimizations to make strace work faster. 217 218 * Bug fixes 219 * Implemented proper handling of real SIGTRAPs on kernels supporting 220 PTRACE_O_TRACESYSGOOD. 221 (Addresses Fedora bug #162774). 222 * Fixed sockaddr_un.sun_path name in decoded output. 223 (Addresses Debian bug #554946). 224 * Fixed to avoid potential core file clobbering on exit. 225 (Addresses Debian bug #656398). 226 * Fixed a typo in documentation. 227 (Addresses Debian bug #653309). 228 * Fixed decoding of timer id returned by timer_create. 229 * Fixed epoll_create1, epoll_wait and epoll_pwait decoding. 230 * Fixed *at syscalls flags decoding. 231 * Fixed ARM EABI 64-bit syscall's arguments decoding. 232 * Fixed semtimedop decoding on s390. 233 * Fixed osf_sigprocmask decoding on alpha. 234 * Fixed ipc and socket subcall decoding on several architectures. 235 * Corrected syscall entries for epoll_pwait, epoll_create, epoll_ctl, 236 epoll_wait, mincore, mlockall, prctl, reboot, sendfile, sendfile64, 237 sendmsg, sgetmask, ssetmask, swapon, tgkill and tkill syscalls. 238 * Corrected io_* syscall entries on ARM. 239 * Fixed PID prefix printing in "strace -oLOG -ff -p1 -p2 -p3" case. 240 * Fixed logging of unfinished lines in "strace -oLOG -ff" case. 241 * Fixed build when libaio-devel is not available. 242 * Fixed configure checks for PTRACE_* constants. 243 * Fixed compilation warnings remained on several architectures. 244 245 * Portability 246 * Removed all non-Linux code. After years of neglect, that dead code 247 just hampered further strace development. 248 * Linux kernel >= 2.6.18 is recommended. Older versions might still 249 work but they haven't been thoroughly tested with this release. 250 251 Noteworthy changes in release 4.6 (2011-03-15) 252 ============================================== 253 254 * Changes in behavior 255 * Print diagnostic information about changes in personality mode to 256 standard error instead of standard output. 257 258 * Improvements 259 * Implemented a new method of following clone, fork, and vfork 260 syscalls using the Linux kernel's explicit facilities for tracing 261 creation of threads and child processes. 262 * Implemented CLONE_PARENT and CLONE_UNTRACED flags handling. 263 * Implemented decoding of TLS syscalls on m68k. 264 * Implemented biarch support on powerpc64. 265 * Implemented biarch support for getrlimit() and setrlimit(). 266 * Implemented decoding of struct ucred in getsockopt SO_PEERCRED. 267 * Implemented SOL_SCTP socket options decoding. 268 * Added HDIO_* ioctl names. 269 (Addresses Debian bug #450953). 270 * Added LOOP_* ioctl names. 271 * Updated lists of CLOCK_*, CLONE_*, MS_*, and SOL_* constants 272 to match Linux 2.6.37. 273 * Updated the list of IPPROTO_* constants to match netinet/in.h. 274 * Implemented decoding of HDIO_* and BLK* ioctls. 275 * Added MicroBlaze architecture support. 276 * Added new syscall entries to match Linux 2.6.37. 277 * Regenerated list of ioctl names from Linux 2.6.37. 278 * Enhanced signal notification decoding. 279 * Documented -C and -D options. 280 281 * Bug fixes 282 * Fixed fetching syscall arguments on m68k. 283 * Fixed an error when judging whether a process has children. 284 * Fixed get/set_robust_list syscall numbers for powerpc. 285 * Fixed a corner case in printing clone flags. 286 * Fixed cross-compiling issues. 287 * Fixed build issues on powerpc64, SH and SPARC. 288 * Fixed syscall flags of fstatat*, mmap, mmap2, fadvise64*, swapoff, 289 fgetxattr, flistxattr, fremovexattr, epoll_create, fallocate, 290 fanotify_init, and fanotify_mark syscalls. 291 * Fixed decoding of get[ug]id, gete[ug]id and setfs[ug]id return values. 292 * Fixed biarch support in IO dumping. 293 * Fixed raw exit_group decoding. 294 * Fixed decoding of file descriptors on 64-bit architectures. 295 * Fixed a corner case in waitpid handling. 296 (Addresses Red Hat bug #663547). 297 * Fixed stat64 decoding on mips 298 (Addresses Debian bug #599028). 299 * Fixed misleading italics in the manual page. 300 (Addresses Debian bug #589323). 301 302 Noteworthy changes in release 4.5.20 (2010-04-13) 303 ================================================= 304 305 * Improvements 306 * Implemented decoding of new linux syscalls: inotify_init1, recvmmsg. 307 * Implemented basic decoding of new linux syscalls: preadv, pwritev, 308 rt_tgsigqueueinfo, perf_event_open. 309 * Enhanced decoding of recently added syscalls on non-x86 architectures 310 by replacing a bare decoder with elaborate parsers enabled earlier 311 for x86/x86-64. 312 * Implemented -C option to combine regular and -c output. 313 (Addresses Debian bug #466196) 314 * Enhanced decoding of mbind and mremap syscalls. 315 * Enhanced SOL_PACKET socket options decoding. 316 * Regenerated list of ioctl names from linux 2.6.33. 317 * Added TILE architecture support. 318 319 * Bug fixes 320 * Fixed build with Linux kernel headers 2.6.32-rc5+. 321 (Addresses Debian bug #560516 and Fedora bug #539044) 322 * Fixed build on mips. 323 * Fixed handling of Linux systems without struct statfs64. 324 * Fixed reporting signal mask by sigreturn on powerpc. 325 * Fixed potential stack buffer overflow in select decoder. 326 (Addresses Fedora bug #556678) 327 * Corrected msgsnd indirect ipccall decoding. 328 * Corrected decoding of 64bit syscalls. 329 (Addresses Debian bug #570603) 330 * Corrected getsockopt decoding on architectures where 331 sizeof(long) > sizeof(int). 332 (Addresses Debian bug #494844) 333 * Corrected decoding of epoll_pwait. 334 (Addresses Debian bug #513014) 335 * Corrected handling of killed threads. 336 337 Noteworthy changes in release 4.5.19 (2009-10-21) 338 ================================================= 339 340 * Changes in behavior 341 * When command exits, strace now exits with the same exit status. 342 If command is terminated by a signal, strace terminates itself 343 with the same signal, so that strace can be used as a wrapper 344 process transparent to the invoking parent process. 345 When using -p option, the exit status of strace is zero unless 346 there was an unexpected error in doing the tracing. 347 (Addresses Fedora bug #105371 and Debian bug #37665) 348 349 * Improvements 350 * Implemented decoding of new Linux syscalls: accept4, dup3, 351 epoll_create1, eventfd2, inotify_init1, pipe2, signalfd4. 352 * Implemented decoding of socket type flags introduced in Linux 2.6.27. 353 * Implemented decoding of accept4 socketcall. 354 * Enhanced prctl decoding. 355 * Enhanced nanosleep decoding. 356 * Enhanced ptrace decoding. 357 * Enhanced futex decoding. 358 * Enhanced CAP_* decoding. 359 * Enhanced SIOCS* ioctls decoding. 360 * Enhanced fcntl F_* flags decoding. 361 * Enhanced semop/semtimedop decoding. 362 * Updated ARM architecture support. 363 * Added Blackfin architecture support. 364 * Added AVR32 architecture support. 365 * Added CRIS architecture support. 366 * Made strace detect when traced process suddenly disappeared. 367 368 * Bug fixes 369 * Fixed syscall numbers for tee and sync_file_range. 370 (Addresses Debian bug #503124) 371 * Fixed several bugs in strings decoder, including potential heap 372 memory corruption. 373 (Addresses Fedora bugs #470529, #478324 and #511035) 374 * Marked sendfile(2) as a network syscall. 375 (Addresses Debian bug #509499) 376 * Fixed accept(2) decoding. 377 (Addresses Debian bug #507573) 378 * Fixed sigtimedwait(2) decoding. 379 * Fixed build on ARM EABI. 380 (Addresses Debian bugs #520084 and #535564, and Fedora bug #507576) 381 * Fixed display of 32-bit fcntl(F_SETLK) on 64-bit architectures. 382 (Addresses Red Hat bug #471169) 383 * Fixed display of 32-bit argv array on 64-bit architectures. 384 (Addresses Fedora bug #519480) 385 * Fixed display of 32-bit struct sigaction on 64-bit architectures. 386 * Fixed HPPA architecture support. 387 (Addresses Debian bugs #437928 and #546619) 388 389 Changes in 4.5.18 390 ============== 391 * Bug fixes. 392 * Support new Linux/PPC system call subpage_prot and PROT_SAO flag. 393 * In sigaction system call, display sa_flags value along with SIG_DFL/SIG_IGN. 394 395 Changes in 4.5.17 396 ============== 397 * Many bug fixes. 398 * -F is now deprecated, -f has traced vfork too on Linux for a long time now. 399 * Print O_CLOEXEC, MSG_CMSG_CLOEXEC flag bits. 400 * Improved output for prctl system call on Linux. 401 * Improved support for Linux/ARM. 402 * SA_NOMASK is now spelled SA_NODEFER, and SA_ONESHOT is spelled SA_RESETHAND. 403 404 Changes in 4.5.16 405 ============== 406 * Bug fixes. 407 * Improved output for delete_module, futex, and mbind system calls on Linux. 408 * Improved output for SG_IO ioctls on Linux. 409 * Support new Linux system calls move_pages, utimensat, signalfd, timerfd, 410 eventfd, getcpu, epoll_pwait. 411 412 Changes in 4.5.15 413 ============== 414 * Bug fixes. 415 * Several biarch improvements. 416 * Improved output for adjtimex, sysctl, quotactl, mount, umount. 417 * Support new Linux system calls *at, inotify*, pselect6, ppoll and unshare. 418 419 Changes in 4.5.14 420 ============== 421 * Bug fixes. 422 * Accept numeric system calls in -e. 423 424 Changes in 4.5.13 425 ============== 426 * Bug fixes. 427 * Introduce "-e trace=desc". 428 429 Changes in 4.5.12 430 ============== 431 * Bug fixes. 432 * Better x86-64 support for IA32 processes. 433 * Update PowerPC system calls. 434 * Better printing for Linux aio system calls. 435 436 Changes in 4.5.11 437 ============== 438 * Quick fix release for build issues. 439 * One fix for Linux/ARM system call table. 440 441 Changes in 4.5.10 442 ============== 443 * Bug fixes. 444 * Print fault address for SIGSEGV/SIGBUS signals when available. 445 446 Changes in 4.5.9 447 ============== 448 * Bug fixes. 449 * Improve socket ioctl printing. 450 * Update Linux/IA64 syscall list. 451 * Fix Linux/x86-64 syscall argument extraction for 32-bit processes. 452 * Improve mount flags printing. 453 * Support symbolic printing of x86_64 arch_prctl parameters. 454 455 Changes in 4.5.8 456 ============== 457 * Bug fixes. 458 * Update syscall tables for Alpha, ARM, HPPA. 459 * Support new Linux syscalls mbind, set_mempolicy, get_mempolicy, waitid. 460 * Support Linux syscalls fadvise64, fadvise64_64, and epoll_*. 461 * Improve ioctl command name matching. 462 * Print RTC_* ioctl structure contents. 463 * Support newer RLIMIT_* values. 464 * Print struct cmsghdr details in sendmsg. 465 466 Changes in 4.5.7 467 ============== 468 * Bug fixes. 469 * Print attribute values in *xattr system calls on Linux. 470 * Include pread and pwrite calls in -e read and -e write tracing. 471 * Update SO_* and IP_* value lists and add IPV6_* values for socket options. 472 * Print clock_t values symbolically in Linux clock_* system calls. 473 474 Changes in 4.5.6 475 ============== 476 * Bug fixes, Linux ioctl updates. 477 * David Miller contributed support for Linux/SPARC64. 478 479 Changes in 4.5.5 480 ============== 481 * Just bug fixes. 482 483 Changes in 4.5.4 484 ============== 485 * Update Linux ioctl lists. 486 * Update PF_* and AF_* value lists. 487 * The 4.5.3 -p behavior for NPTL threads applies only under -f, and got fixed. 488 489 Changes in 4.5.3 490 ============== 491 * Bug fixes. 492 * On Linux using NPTL threads, -p will now attach to all threads in a process. 493 * Handle new mq_* system calls in Linux 2.6.6 and later. 494 495 Changes in 4.5.2 496 ============== 497 * Bug fixes. 498 * Report some new VM_* bit values on Linux. 499 * Better output for Linux sched_* system calls. 500 501 Changes in 4.5.1 502 ============== 503 * Bug fixes. 504 * Display multiple ioctl name matches on Linux. 505 506 Changes in 4.5 507 ============== 508 * New port to AMD's x86-64 architecture. One strace binary can 509 handle both new x86-64 and old i386 processes. 510 * Fixed support for LFS64 calls. 511 * New switch -E to add/remove environment variables for the command. 512 * Merged s390/s390x port. 513 * Trace an unbounded number of processes. 514 * Handle numerous new system calls in Linux 2.5, and new threads semantics. 515 * Fixed bugs with attach/detach leaving things stopped. 516 * Fixed traced process seeing ECHILD despite live, traced children 517 in waitpid calls with WNOHANG. 518 * Stuart Menefy contributed a port to Linux/SH. 519 * Stephen Thomas contributed a port to Linux/SH64. 520 * Many other bug fixes. 521 522 Changes in 4.4 523 ============== 524 * Fix Linux/ia64 support, looks like someone renamed a few things on us 525 * Fix the ioctl setup for Linux, turned out it did not really work. 526 Improve the ioctl extracter as well so we decode some more ones. 527 528 Changes in 4.3.1 529 ================ 530 * compile fixes for Linux/mips 531 532 Changes in 4.3 533 ============== 534 * Linux ia64 and hppa ports added 535 * The usual Linux syscall updates (includes 32bit uid/gid support), 536 * Linux ioctl list updated 537 * Support IPv6 scope ids 538 * FreeBSD/i386 port added 539 * UnixWare and Solaris updates 540 * Better support for tracing multithreaded processes in Linux 541 542 Changes in 4.2 543 ============== 544 * Compiles on glibc2.0 systems again 545 * Linux/S390 port added 546 * The usual Linux syscall updates 547 * we can follow fork on arm now 548 549 Changes in 4.1 550 ================ 551 * Linux/MIPS port added 552 * Lots of Linux updates again 553 * Improved IPv6 support 554 * Add strace-graph 555 556 Changes in 4.0.1 557 ================ 558 * Minor bugfixes 559 * Compiles on glibc2.0 systems again 560 561 Changes in 4.0 562 ============== 563 * Get stat structure properly on Linux 64bit archs 564 * Personalities work again 565 * Compile correctly on SunOS again 566 * IRIX64 updates 567 * Solaris updates 568 569 Changes in 3.99.1 570 ================= 571 * Linux (ultra)sparc fixes 572 * Linux alpha fixes 573 * Minor cleanups 574 575 Changes in 3.99 576 =============== 577 * New maintainer 578 * add support for more Linux architectures (powerpc, sparc, arm) 579 * support lots more Linux syscalls 580 * fix signal handling 581 * add IPX and IPIP support 582 * check stray syscall after execv 583 * fix hanging children 584 585 Changes in version 3.1 586 ====================== 587 588 * Irix5 is supported 589 * Linux 68k is supported 590 * Linux alpha is supported 591 * configure is upgraded to autoconf 2.x 592 * using -f in combination with -e now works correctly 593 * output can be piped to a program 594 * tracing setuid programs works better 595 * it is now reasonable to install strace setuid to root in some circumstances 596 * new useful tracing names like file and process to trace whole 597 classes of system calls, e.g. -efile traces all system calls that 598 take a file name as an argument 599 * IPC calls on SunOS 4.1.x are decoded 600 * Linux program memory is reliably dereferenced 601 * Linux decodes at least the name of all syscalls as of pre2.0.4 602 * various cosmetic changes and bug fixes 603 604 Changes from versions 2.x to version 3.0 605 ======================================== 606 607 * filename arguments are neither abbreviated nor stringified 608 * string arguments are now true C strings using octal instead of hex by default 609 * preprocessor constants are never shortened (e.g. was RDONLY => now O_RDONLY) 610 * by default the output for multiple processes now goes into one file 611 * all structures, vectors, bitsets, etc. use consistent output formats 612 * the -c option now means count calls, -i does what the old -c used to do 613 614 New Features in version 3.0 615 =========================== 616 617 * non-ascii strings can be optionally printed entirely in hex 618 * the output format is readable when mutiple processes are generating output 619 * exit values are printed in an alignment column 620 * is is possible to suppress messages about attaching and detaching 621 * various tracing features can be enabled on a per syscall/signal/desc basis 622 * selective tracing of syscalls 623 * selective printing of syscall structures 624 * selective abbreviation of long structures on a per syscall basis 625 * selective printing of raw syscall arguments and results 626 * selective tracing of signals 627 * selective dumping of all I/O read from file descriptors 628 * selective dumping of all I/O written to file descriptors 629 * optional counting of time, calls, and errors for each syscall 630
