1 Noteworthy changes in release 4.6
2 =================================
5 * Print diagnostic information about changes in personality mode to
6 standard error instead of standard output.
9 * Implemented a new method of following clone, fork, and vfork
10 syscalls using the Linux kernel's explicit facilities for tracing
11 creation of threads and child processes.
12 * Implemented CLONE_PARENT and CLONE_UNTRACED flags handling.
13 * Implemented decoding of TLS syscalls on m68k.
14 * Implemented biarch support on powerpc64.
15 * Implemented biarch support for getrlimit() and setrlimit().
16 * Implemented decoding of struct ucred in getsockopt SO_PEERCRED.
17 * Implemented SOL_SCTP socket options decoding.
18 * Added HDIO_* ioctl names.
19 (Addresses Debian bug #450953).
20 * Added LOOP_* ioctl names.
21 * Updated lists of CLOCK_*, CLONE_*, MS_*, and SOL_* constants
22 to match Linux 2.6.37.
23 * Updated the list of IPPROTO_* constants to match netinet/in.h.
24 * Implemented decoding of HDIO_* and BLK* ioctls.
25 * Added MicroBlaze architecture support.
26 * Added new syscall entries to match Linux 2.6.37.
27 * Regenerated list of ioctl names from Linux 2.6.37.
28 * Enhanced signal notification decoding.
29 * Documented -C and -D options.
32 * Fixed fetching syscall arguments on m68k.
33 * Fixed an error when judging whether a process has children.
34 * Fixed get/set_robust_list syscall numbers for powerpc.
35 * Fixed a corner case in printing clone flags.
36 * Fixed cross-compiling issues.
37 * Fixed build issues on powerpc64, SH and SPARC.
38 * Fixed syscall flags of fstatat*, mmap, mmap2, fadvise64*, swapoff,
39 fgetxattr, flistxattr, fremovexattr, epoll_create, fallocate,
40 fanotify_init, and fanotify_mark syscalls.
41 * Fixed decoding of get[ug]id, gete[ug]id and setfs[ug]id return values.
42 * Fixed biarch support in IO dumping.
43 * Fixed raw exit_group decoding.
44 * Fixed decoding of file descriptors on 64-bit architectures.
45 * Fixed a corner case in waitpid handling.
46 (Addresses Red Hat bug #663547).
47 * Fixed stat64 decoding on mips
48 (Addresses Debian bug #599028).
49 * Fixed misleading italics in the manual page.
50 (Addresses Debian bug #589323).
52 Noteworthy changes in release 4.5.20
53 ====================================
56 * Implemented decoding of new linux syscalls: inotify_init1, recvmmsg.
57 * Implemented basic decoding of new linux syscalls: preadv, pwritev,
58 rt_tgsigqueueinfo, perf_event_open.
59 * Enhanced decoding of recently added syscalls on non-x86 architectures
60 by replacing a bare decoder with elaborate parsers enabled earlier
62 * Implemented -C option to combine regular and -c output.
63 (Addresses Debian bug #466196)
64 * Enhanced decoding of mbind and mremap syscalls.
65 * Enhanced SOL_PACKET socket options decoding.
66 * Regenerated list of ioctl names from linux 2.6.33.
67 * Added TILE architecture support.
70 * Fixed build with Linux kernel headers 2.6.32-rc5+.
71 (Addresses Debian bug #560516 and Fedora bug #539044)
72 * Fixed build on mips.
73 * Fixed handling of Linux systems without struct statfs64.
74 * Fixed reporting signal mask by sigreturn on powerpc.
75 * Fixed potential stack buffer overflow in select decoder.
76 (Addresses Fedora bug #556678)
77 * Corrected msgsnd indirect ipccall decoding.
78 * Corrected decoding of 64bit syscalls.
79 (Addresses Debian bug #570603)
80 * Corrected getsockopt decoding on architectures where
81 sizeof(long) > sizeof(int).
82 (Addresses Debian bug #494844)
83 * Corrected decoding of epoll_pwait.
84 (Addresses Debian bug #513014)
85 * Corrected handling of killed threads.
87 Noteworthy changes in release 4.5.19
88 ====================================
91 * When command exits, strace now exits with the same exit status.
92 If command is terminated by a signal, strace terminates itself
93 with the same signal, so that strace can be used as a wrapper
94 process transparent to the invoking parent process.
95 When using -p option, the exit status of strace is zero unless
96 there was an unexpected error in doing the tracing.
97 (Addresses Fedora bug #105371 and Debian bug #37665)
100 * Implemented decoding of new Linux syscalls: accept4, dup3,
101 epoll_create1, eventfd2, inotify_init1, pipe2, signalfd4.
102 * Implemented decoding of socket type flags introduced in Linux 2.6.27.
103 * Implemented decoding of accept4 socketcall.
104 * Enhanced prctl decoding.
105 * Enhanced nanosleep decoding.
106 * Enhanced ptrace decoding.
107 * Enhanced futex decoding.
108 * Enhanced CAP_* decoding.
109 * Enhanced SIOCS* ioctls decoding.
110 * Enhanced fcntl F_* flags decoding.
111 * Enhanced semop/semtimedop decoding.
112 * Updated ARM architecture support.
113 * Added Blackfin architecture support.
114 * Added AVR32 architecture support.
115 * Added CRIS architecture support.
116 * Made strace detect when traced process suddenly disappeared.
119 * Fixed syscall numbers for tee and sync_file_range.
120 (Addresses Debian bug #503124)
121 * Fixed several bugs in strings decoder, including potential heap
123 (Addresses Fedora bugs #470529, #478324 and #511035)
124 * Marked sendfile(2) as a network syscall.
125 (Addresses Debian bug #509499)
126 * Fixed accept(2) decoding.
127 (Addresses Debian bug #507573)
128 * Fixed sigtimedwait(2) decoding.
129 * Fixed build on ARM EABI.
130 (Addresses Debian bugs #520084 and #535564, and Fedora bug #507576)
131 * Fixed display of 32-bit fcntl(F_SETLK) on 64-bit architectures.
132 (Addresses Red Hat bug #471169)
133 * Fixed display of 32-bit argv array on 64-bit architectures.
134 (Addresses Fedora bug #519480)
135 * Fixed display of 32-bit struct sigaction on 64-bit architectures.
136 * Fixed HPPA architecture support.
137 (Addresses Debian bugs #437928 and #546619)
142 * Support new Linux/PPC system call subpage_prot and PROT_SAO flag.
143 * In sigaction system call, display sa_flags value along with SIG_DFL/SIG_IGN.
148 * -F is now deprecated, -f has traced vfork too on Linux for a long time now.
149 * Print O_CLOEXEC, MSG_CMSG_CLOEXEC flag bits.
150 * Improved output for prctl system call on Linux.
151 * Improved support for Linux/ARM.
152 * SA_NOMASK is now spelled SA_NODEFER, and SA_ONESHOT is spelled SA_RESETHAND.
157 * Improved output for delete_module, futex, and mbind system calls on Linux.
158 * Improved output for SG_IO ioctls on Linux.
159 * Support new Linux system calls move_pages, utimensat, signalfd, timerfd,
160 eventfd, getcpu, epoll_pwait.
165 * Several biarch improvements.
166 * Improved output for adjtimex, sysctl, quotactl, mount, umount.
167 * Support new Linux system calls *at, inotify*, pselect6, ppoll and unshare.
172 * Accept numeric system calls in -e.
177 * Introduce "-e trace=desc".
182 * Better x86-64 support for IA32 processes.
183 * Update PowerPC system calls.
184 * Better printing for Linux aio system calls.
188 * Quick fix release for build issues.
189 * One fix for Linux/ARM system call table.
194 * Print fault address for SIGSEGV/SIGBUS signals when available.
199 * Improve socket ioctl printing.
200 * Update Linux/IA64 syscall list.
201 * Fix Linux/x86-64 syscall argument extraction for 32-bit processes.
202 * Improve mount flags printing.
203 * Support symbolic printing of x86_64 arch_prctl parameters.
208 * Update syscall tables for Alpha, ARM, HPPA.
209 * Support new Linux syscalls mbind, set_mempolicy, get_mempolicy, waitid.
210 * Support Linux syscalls fadvise64, fadvise64_64, and epoll_*.
211 * Improve ioctl command name matching.
212 * Print RTC_* ioctl structure contents.
213 * Support newer RLIMIT_* values.
214 * Print struct cmsghdr details in sendmsg.
219 * Print attribute values in *xattr system calls on Linux.
220 * Include pread and pwrite calls in -e read and -e write tracing.
221 * Update SO_* and IP_* value lists and add IPV6_* values for socket options.
222 * Print clock_t values symbolically in Linux clock_* system calls.
226 * Bug fixes, Linux ioctl updates.
227 * David Miller contributed support for Linux/SPARC64.
235 * Update Linux ioctl lists.
236 * Update PF_* and AF_* value lists.
237 * The 4.5.3 -p behavior for NPTL threads applies only under -f, and got fixed.
242 * On Linux using NPTL threads, -p will now attach to all threads in a process.
243 * Handle new mq_* system calls in Linux 2.6.6 and later.
248 * Report some new VM_* bit values on Linux.
249 * Better output for Linux sched_* system calls.
254 * Display multiple ioctl name matches on Linux.
258 * New port to AMD's x86-64 architecture. One strace binary can
259 handle both new x86-64 and old i386 processes.
260 * Fixed support for LFS64 calls.
261 * New switch -E to add/remove environment variables for the command.
262 * Merged s390/s390x port.
263 * Trace an unbounded number of processes.
264 * Handle numerous new system calls in Linux 2.5, and new threads semantics.
265 * Fixed bugs with attach/detach leaving things stopped.
266 * Fixed traced process seeing ECHILD despite live, traced children
267 in waitpid calls with WNOHANG.
268 * Stuart Menefy contributed a port to Linux/SH.
269 * Stephen Thomas contributed a port to Linux/SH64.
270 * Many other bug fixes.
274 * Fix Linux/ia64 support, looks like someone renamed a few things on us
275 * Fix the ioctl setup for Linux, turned out it did not really work.
276 Improve the ioctl extracter as well so we decode some more ones.
280 * compile fixes for Linux/mips
284 * Linux ia64 and hppa ports added
285 * The usual Linux syscall updates (includes 32bit uid/gid support),
286 * Linux ioctl list updated
287 * Support IPv6 scope ids
288 * FreeBSD/i386 port added
289 * UnixWare and Solaris updates
290 * Better support for tracing multithreaded processes in Linux
294 * Compiles on glibc2.0 systems again
295 * Linux/S390 port added
296 * The usual Linux syscall updates
297 * we can follow fork on arm now
301 * Linux/MIPS port added
302 * Lots of Linux updates again
303 * Improved IPv6 support
309 * Compiles on glibc2.0 systems again
313 * Get stat structure properly on Linux 64bit archs
314 * Personalities work again
315 * Compile correctly on SunOS again
321 * Linux (ultra)sparc fixes
328 * add support for more Linux architectures (powerpc, sparc, arm)
329 * support lots more Linux syscalls
330 * fix signal handling
331 * add IPX and IPIP support
332 * check stray syscall after execv
333 * fix hanging children
335 Changes in version 3.1
336 ======================
339 * Linux 68k is supported
340 * Linux alpha is supported
341 * configure is upgraded to autoconf 2.x
342 * using -f in combination with -e now works correctly
343 * output can be piped to a program
344 * tracing setuid programs works better
345 * it is now reasonable to install strace setuid to root in some circumstances
346 * new useful tracing names like file and process to trace whole
347 classes of system calls, e.g. -efile traces all system calls that
348 take a file name as an argument
349 * IPC calls on SunOS 4.1.x are decoded
350 * Linux program memory is reliably dereferenced
351 * Linux decodes at least the name of all syscalls as of pre2.0.4
352 * various cosmetic changes and bug fixes
354 Changes from versions 2.x to version 3.0
355 ========================================
357 * filename arguments are neither abbreviated nor stringified
358 * string arguments are now true C strings using octal instead of hex by default
359 * preprocessor constants are never shortened (e.g. was RDONLY => now O_RDONLY)
360 * by default the output for multiple processes now goes into one file
361 * all structures, vectors, bitsets, etc. use consistent output formats
362 * the -c option now means count calls, -i does what the old -c used to do
364 New Features in version 3.0
365 ===========================
367 * non-ascii strings can be optionally printed entirely in hex
368 * the output format is readable when mutiple processes are generating output
369 * exit values are printed in an alignment column
370 * is is possible to suppress messages about attaching and detaching
371 * various tracing features can be enabled on a per syscall/signal/desc basis
372 * selective tracing of syscalls
373 * selective printing of syscall structures
374 * selective abbreviation of long structures on a per syscall basis
375 * selective printing of raw syscall arguments and results
376 * selective tracing of signals
377 * selective dumping of all I/O read from file descriptors
378 * selective dumping of all I/O written to file descriptors
379 * optional counting of time, calls, and errors for each syscall
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