1 Noteworthy changes in release 4.5.20
2 ====================================
5 * Implemented decoding of new linux syscalls: inotify_init1, recvmmsg.
6 * Implemented basic decoding of new linux syscalls: preadv, pwritev,
7 rt_tgsigqueueinfo, perf_event_open.
8 * Enhanced decoding of recently added syscalls on non-x86 architectures
9 by replacing a bare decoder with elaborate parsers enabled earlier
11 * Implemented -C option to combine regular and -c output.
12 (Addresses Debian bug #466196)
13 * Enhanced decoding of mbind and mremap syscalls.
14 * Enhanced SOL_PACKET socket options decoding.
15 * Regenerated list of ioctl names from linux 2.6.33.
16 * Added TILE architecture support.
19 * Fixed build with Linux kernel headers 2.6.32-rc5+.
20 (Addresses Debian bug #560516 and Fedora bug #539044)
21 * Fixed build on mips.
22 * Fixed handling of Linux systems without struct statfs64.
23 * Fixed reporting signal mask by sigreturn on powerpc.
24 * Fixed potential stack buffer overflow in select decoder.
25 (Addresses Fedora bug #556678)
26 * Corrected msgsnd indirect ipccall decoding.
27 * Corrected decoding of 64bit syscalls.
28 (Addresses Debian bug #570603)
29 * Corrected getsockopt decoding on architectures where
30 sizeof(long) > sizeof(int).
31 (Addresses Debian bug #494844)
32 * Corrected decoding of epoll_pwait.
33 (Addresses Debian bug #513014)
34 * Corrected handling of killed threads.
36 Noteworthy changes in release 4.5.19
37 ====================================
40 * When command exits, strace now exits with the same exit status.
41 If command is terminated by a signal, strace terminates itself
42 with the same signal, so that strace can be used as a wrapper
43 process transparent to the invoking parent process.
44 When using -p option, the exit status of strace is zero unless
45 there was an unexpected error in doing the tracing.
46 (Addresses Fedora bug #105371 and Debian bug #37665)
49 * Implemented decoding of new Linux syscalls: accept4, dup3,
50 epoll_create1, eventfd2, inotify_init1, pipe2, signalfd4.
51 * Implemented decoding of socket type flags introduced in Linux 2.6.27.
52 * Implemented decoding of accept4 socketcall.
53 * Enhanced prctl decoding.
54 * Enhanced nanosleep decoding.
55 * Enhanced ptrace decoding.
56 * Enhanced futex decoding.
57 * Enhanced CAP_* decoding.
58 * Enhanced SIOCS* ioctls decoding.
59 * Enhanced fcntl F_* flags decoding.
60 * Enhanced semop/semtimedop decoding.
61 * Updated ARM architecture support.
62 * Added Blackfin architecture support.
63 * Added AVR32 architecture support.
64 * Added CRIS architecture support.
65 * Made strace detect when traced process suddenly disappeared.
68 * Fixed syscall numbers for tee and sync_file_range.
69 (Addresses Debian bug #503124)
70 * Fixed several bugs in strings decoder, including potential heap
72 (Addresses Fedora bugs #470529, #478324 and #511035)
73 * Marked sendfile(2) as a network syscall.
74 (Addresses Debian bug #509499)
75 * Fixed accept(2) decoding.
76 (Addresses Debian bug #507573)
77 * Fixed sigtimedwait(2) decoding.
78 * Fixed build on ARM EABI.
79 (Addresses Debian bugs #520084 and #535564, and Fedora bug #507576)
80 * Fixed display of 32-bit fcntl(F_SETLK) on 64-bit architectures.
81 (Addresses Red Hat bug #471169)
82 * Fixed display of 32-bit argv array on 64-bit architectures.
83 (Addresses Fedora bug #519480)
84 * Fixed display of 32-bit struct sigaction on 64-bit architectures.
85 * Fixed HPPA architecture support.
86 (Addresses Debian bugs #437928 and #546619)
91 * Support new Linux/PPC system call subpage_prot and PROT_SAO flag.
92 * In sigaction system call, display sa_flags value along with SIG_DFL/SIG_IGN.
97 * -F is now deprecated, -f has traced vfork too on Linux for a long time now.
98 * Print O_CLOEXEC, MSG_CMSG_CLOEXEC flag bits.
99 * Improved output for prctl system call on Linux.
100 * Improved support for Linux/ARM.
101 * SA_NOMASK is now spelled SA_NODEFER, and SA_ONESHOT is spelled SA_RESETHAND.
106 * Improved output for delete_module, futex, and mbind system calls on Linux.
107 * Improved output for SG_IO ioctls on Linux.
108 * Support new Linux system calls move_pages, utimensat, signalfd, timerfd,
109 eventfd, getcpu, epoll_pwait.
114 * Several biarch improvements.
115 * Improved output for adjtimex, sysctl, quotactl, mount, umount.
116 * Support new Linux system calls *at, inotify*, pselect6, ppoll and unshare.
121 * Accept numeric system calls in -e.
126 * Introduce "-e trace=desc".
131 * Better x86-64 support for IA32 processes.
132 * Update PowerPC system calls.
133 * Better printing for Linux aio system calls.
137 * Quick fix release for build issues.
138 * One fix for Linux/ARM system call table.
143 * Print fault address for SIGSEGV/SIGBUS signals when available.
148 * Improve socket ioctl printing.
149 * Update Linux/IA64 syscall list.
150 * Fix Linux/x86-64 syscall argument extraction for 32-bit processes.
151 * Improve mount flags printing.
152 * Support symbolic printing of x86_64 arch_prctl parameters.
157 * Update syscall tables for Alpha, ARM, HPPA.
158 * Support new Linux syscalls mbind, set_mempolicy, get_mempolicy, waitid.
159 * Support Linux syscalls fadvise64, fadvise64_64, and epoll_*.
160 * Improve ioctl command name matching.
161 * Print RTC_* ioctl structure contents.
162 * Support newer RLIMIT_* values.
163 * Print struct cmsghdr details in sendmsg.
168 * Print attribute values in *xattr system calls on Linux.
169 * Include pread and pwrite calls in -e read and -e write tracing.
170 * Update SO_* and IP_* value lists and add IPV6_* values for socket options.
171 * Print clock_t values symbolically in Linux clock_* system calls.
175 * Bug fixes, Linux ioctl updates.
176 * David Miller contributed support for Linux/SPARC64.
184 * Update Linux ioctl lists.
185 * Update PF_* and AF_* value lists.
186 * The 4.5.3 -p behavior for NPTL threads applies only under -f, and got fixed.
191 * On Linux using NPTL threads, -p will now attach to all threads in a process.
192 * Handle new mq_* system calls in Linux 2.6.6 and later.
197 * Report some new VM_* bit values on Linux.
198 * Better output for Linux sched_* system calls.
203 * Display multiple ioctl name matches on Linux.
207 * New port to AMD's x86-64 architecture. One strace binary can
208 handle both new x86-64 and old i386 processes.
209 * Fixed support for LFS64 calls.
210 * New switch -E to add/remove environment variables for the command.
211 * Merged s390/s390x port.
212 * Trace an unbounded number of processes.
213 * Handle numerous new system calls in Linux 2.5, and new threads semantics.
214 * Fixed bugs with attach/detach leaving things stopped.
215 * Fixed traced process seeing ECHILD despite live, traced children
216 in waitpid calls with WNOHANG.
217 * Stuart Menefy contributed a port to Linux/SH.
218 * Stephen Thomas contributed a port to Linux/SH64.
219 * Many other bug fixes.
223 * Fix Linux/ia64 support, looks like someone renamed a few things on us
224 * Fix the ioctl setup for Linux, turned out it did not really work.
225 Improve the ioctl extracter as well so we decode some more ones.
229 * compile fixes for Linux/mips
233 * Linux ia64 and hppa ports added
234 * The usual Linux syscall updates (includes 32bit uid/gid support),
235 * Linux ioctl list updated
236 * Support IPv6 scope ids
237 * FreeBSD/i386 port added
238 * UnixWare and Solaris updates
239 * Better support for tracing multithreaded processes in Linux
243 * Compiles on glibc2.0 systems again
244 * Linux/S390 port added
245 * The usual Linux syscall updates
246 * we can follow fork on arm now
250 * Linux/MIPS port added
251 * Lots of Linux updates again
252 * Improved IPv6 support
258 * Compiles on glibc2.0 systems again
262 * Get stat structure properly on Linux 64bit archs
263 * Personalities work again
264 * Compile correctly on SunOS again
270 * Linux (ultra)sparc fixes
277 * add support for more Linux architectures (powerpc, sparc, arm)
278 * support lots more Linux syscalls
279 * fix signal handling
280 * add IPX and IPIP support
281 * check stray syscall after execv
282 * fix hanging children
284 Changes in version 3.1
285 ======================
288 * Linux 68k is supported
289 * Linux alpha is supported
290 * configure is upgraded to autoconf 2.x
291 * using -f in combination with -e now works correctly
292 * output can be piped to a program
293 * tracing setuid programs works better
294 * it is now reasonable to install strace setuid to root in some circumstances
295 * new useful tracing names like file and process to trace whole
296 classes of system calls, e.g. -efile traces all system calls that
297 take a file name as an argument
298 * IPC calls on SunOS 4.1.x are decoded
299 * Linux program memory is reliably dereferenced
300 * Linux decodes at least the name of all syscalls as of pre2.0.4
301 * various cosmetic changes and bug fixes
303 Changes from versions 2.x to version 3.0
304 ========================================
306 * filename arguments are neither abbreviated nor stringified
307 * string arguments are now true C strings using octal instead of hex by default
308 * preprocessor constants are never shortened (e.g. was RDONLY => now O_RDONLY)
309 * by default the output for multiple processes now goes into one file
310 * all structures, vectors, bitsets, etc. use consistent output formats
311 * the -c option now means count calls, -i does what the old -c used to do
313 New Features in version 3.0
314 ===========================
316 * non-ascii strings can be optionally printed entirely in hex
317 * the output format is readable when mutiple processes are generating output
318 * exit values are printed in an alignment column
319 * is is possible to suppress messages about attaching and detaching
320 * various tracing features can be enabled on a per syscall/signal/desc basis
321 * selective tracing of syscalls
322 * selective printing of syscall structures
323 * selective abbreviation of long structures on a per syscall basis
324 * selective printing of raw syscall arguments and results
325 * selective tracing of signals
326 * selective dumping of all I/O read from file descriptors
327 * selective dumping of all I/O written to file descriptors
328 * optional counting of time, calls, and errors for each syscall